Use create folder material icon and increase version

Readme fixes

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,38 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Smartphone (please complete the following information):**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - Browser [e.g. stock browser, safari]
+ - Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/custom.md

@@ -0,0 +1,10 @@
+---
+name: Custom issue template
+about: Describe this issue template's purpose here.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.htaccess

@@ -0,0 +1,75 @@
+# -----------------------------
+# 1) Prevent directory listings
+# -----------------------------
+Options -Indexes
+
+# -----------------------------
+# Default index files
+# -----------------------------
+DirectoryIndex index.html
+
+# -----------------------------
+# Deny access to hidden files
+# -----------------------------
+<FilesMatch "^\.">
+  Require all denied
+</FilesMatch>
+
+# -----------------------------
+# Enforce HTTPS (optional)
+# -----------------------------
+RewriteEngine On
+#RewriteCond %{HTTPS} off
+#RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
+
+<IfModule mod_headers.c>
+    # Allow requests from a specific origin
+    #Header set Access-Control-Allow-Origin "https://demo.filerise.net"
+    Header set Access-Control-Allow-Methods "GET, POST, OPTIONS"
+    Header set Access-Control-Allow-Headers "Content-Type, Authorization, X-Requested-With, X-CSRF-Token"
+    Header set Access-Control-Allow-Credentials "true"
+</IfModule>
+
+<IfModule mod_headers.c>
+  # Prevent clickjacking
+  Header always set X-Frame-Options "SAMEORIGIN"
+  # Block XSS
+  Header always set X-XSS-Protection "1; mode=block"
+  # No MIME sniffing
+  Header always set X-Content-Type-Options "nosniff"
+</IfModule>
+
+<IfModule mod_headers.c>
+  # HTML: always revalidate
+  <FilesMatch "\.(html|htm)$">
+    Header set Cache-Control "no-cache, no-store, must-revalidate"
+    Header set Pragma "no-cache"
+    Header set Expires "0"
+  </FilesMatch>
+  # JS/CSS: short‑term cache, revalidate regularly
+  <FilesMatch "\.(js|css)$">
+    Header set Cache-Control "public, max-age=3600, must-revalidate"
+  </FilesMatch>
+</IfModule>
+
+# -----------------------------
+# Additional Security Headers
+# -----------------------------
+<IfModule mod_headers.c>
+    # Enforce HTTPS for a year with subdomains and preload option.
+    Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
+    # Set a Referrer Policy.
+    Header always set Referrer-Policy "strict-origin-when-cross-origin"
+    # Permissions Policy: disable features you don't need.
+    Header always set Permissions-Policy "geolocation=(), microphone=(), camera=()"
+    # IE-specific header to prevent downloads from opening in IE.
+    Header always set X-Download-Options "noopen"
+    # Expect-CT header for Certificate Transparency (optional).
+    Header always set Expect-CT "max-age=86400, enforce"
+</IfModule>
+
+# -----------------------------
+# Disable TRACE method
+# -----------------------------
+RewriteCond %{REQUEST_METHOD} ^TRACE
+RewriteRule .* - [F]

CHANGELOG.md

@@ -0,0 +1,758 @@
+# Changelog
+
+## Shift Key Multi‑Selection Changes 4/10/2025
+
+- **Implemented Range Selection:**
+  - Modified the `toggleRowSelection` function so that when the Shift key is held down, all rows between the last clicked (anchor) row (stored as `window.lastSelectedFileRow`) and the currently clicked row are selected.
+- **Modifier Handling:**
+  - Regular clicks (or Ctrl/Cmd clicks) simply toggle the clicked row without clearing other selections.
+- **Prevented Default Browser Behavior:**
+  - Added `event.preventDefault()` in the Shift‑click branch to avoid unwanted text selection.
+- **Maintaining the Anchor:**
+  - The last clicked row is stored for future range selections.
+
+## Total Files and File Size Summary
+
+- **Size Calculation:**
+  - Created `parseSizeToBytes(sizeStr)` to convert file size strings (e.g. `"456.9KB"`, `"1.2 MB"`) into a numerical byte value.
+  - Created `formatSize(totalBytes)` to format a byte value into a human‑readable string (choosing between Bytes, KB, MB, or GB).
+  - Created `buildFolderSummary(filteredFiles)` to:
+    - Sum the sizes of all files (using `parseSizeToBytes`).
+    - Count the total number of files.
+- **Dynamic Display in `loadFileList`:**
+  - Updated `loadFileList` to update a summary element (with `id="fileSummary"`) inside the `#fileListActions` container when files are present.
+  - When no files are found, the summary element is hidden (setting its `display` to `"none"` or clearing the container).
+- **Responsive Styling:**
+  - Added CSS media queries to the `#fileSummary` element so that on small screens it is centered and any extra side margins are removed. Dark and light mode supported.
+
+- **Other changes**
+
+  - `shareFolder.php` updated to display format size.
+  - Fix to prevent the filename text from overflowing its container in the gallery view.
+  - Reduced header height.
+  - Create Folder changed to Material Icon `edit`
+
+---
+
+## Folder Sharing Feature - Changelog 4/9/2025 v1.1.0
+
+### New Endpoints
+
+- **createFolderShareLink.php:**  
+  - Generates secure, expiring share tokens for folders (with an optional password and allow-upload flag).  
+  - Stores folder share records separately from file shares in `share_folder_links.json`.  
+  - Builds share links that point to **shareFolder.php**, using a proper BASE_URL or the server’s IP when a default placeholder is detected.
+
+- **shareFolder.php:**  
+  - Serves shared folders via GET requests by reading tokens from `share_folder_links.json`.
+  - Validates token expiration and password (if set).
+  - Displays folder contents with pagination (10 items per page) and shows file sizes in megabytes.
+  - Provides navigation links (Prev, Next, and numbered pages) for folder listings.
+  - Includes an upload form (if allowed) that redirects back to the same share page after upload.
+  
+- **downloadSharedFile.php:**  
+  - A dedicated, secure download endpoint for shared files.
+  - Validates the share token and ensures the requested file is inside the shared folder.
+  - Serves files using proper MIME types and Content-Disposition headers (inline for images, attachment for others).
+
+- **uploadToSharedFolder.php:**  
+  - Handles file uploads for public folder shares.
+  - Enforces file size limits and file type whitelists.
+  - Generates unique filenames (with a unique prefix) to prevent collisions.
+  - Updates metadata for the uploaded file (upload date and sets uploader as "Outside Share").
+  - Redirects back to **shareFolder.php** after a successful upload so the file listing refreshes.
+
+### New Front-End Module
+
+- **folderShareModal.js:**  
+  - Provides a modal interface for users to generate folder share links.
+  - Includes expiration selection, optional password entry, and an allow-upload checkbox.
+  - Uses the **createFolderShareLink.php** endpoint to generate share links.
+  - Displays the generated share link with a “copy to clipboard” button.
+
+---
+
+## Changes 4/8/2025
+
+**May have missed some stuff or could have bugs. Please report any issue you may encounter.**
+
+- **i18n Integration:**
+  - Implemented a semi-complete internationalization (i18n) system for all user-facing texts in FileRise.
+  - Created an `i18n.js` module containing a translations object with full keys for English (en), Spanish (es), and French (fr).
+  - Updated JavaScript code to replace hard-coded strings with the `t()` translation function.
+  - Enhanced HTML and modal templates to support dynamic language translations using data attributes (data-i18n-key, data-i18n-placeholder, etc.).
+
+- **Language Dropdown & Persistence:**
+  - Added a language dropdown to the user panel modal allowing users to select their preferred language.
+  - Persisted the selected language in localStorage, ensuring that the preferred language is automatically applied on page refresh.
+  - Updated main.js to load and set the user’s language preference on DOMContentLoaded by calling `setLocale()` and `applyTranslations()`.
+
+- **Bug Fixes & Improvements:**
+  - Fixed issues with evaluation of translation function calls in template literals (ensured proper syntax with `${t("key")}`).
+  - Updated the t() function to be more defensive against missing keys.
+  - Provided instructions and code examples to ensure the language change settings are reliably saved and applied across sessions.
+
+- **ZIP Download Flow**
+  - Progress Modal: In the ZIP download handler (confirmDownloadZip), added code to show a progress modal (with a spinning icon) as soon as the user confirms the download and before the request to create the ZIP begins. Once the blob is received or an error occurs, we hide the progress modal.
+  - Inline Handlers and Global Exposure: Ensured that functions like confirmDownloadZip are attached to the global window object (or called via appropriate inline handlers) so that the inline onclick events in the HTML work without reference errors.
+
+- **Single File Download Flow**
+  - Modal Popup for Single File: Replaced the direct download link for single files with a modal-driven flow. When the download button is clicked, the openDownloadModal(fileName, folder) function is called. This stores the file details and shows a modal where the user can confirm (or edit) the file name.
+  - Confirm Download Function: When the user clicks the Download button in the modal, the confirmSingleDownload() function is called. This function constructs a URL for download.php (using GET parameters for folder and file), fetches the file as a blob, and triggers a download using a temporary anchor element. A progress modal is also used here to give feedback during the download process.
+
+- **Zip Extraction**
+  - Reused Zip Download modal to use same progress Modal Popup with Extracting files.... text.
+
+---
+
+## Changes 4/7/2025 v1.0.9
+
+- TOTP one time recovery code added
+- fix(security): mitigate CodeQL alerts by adding SRI attributes and sanitizing DOM content
+
+---
+
+## Changes 4/6/2025 v1.0.8
+
+**May need to log out and log back in if using remember me**  
+
+Changelog: Modularize fileManager.js
+
+1. **fileListView.js**  
+ • Extracted all table/gallery rendering logic (loadFileList, renderFileTable, renderGalleryView, sortFiles, date parsing, pagination).  
+ • Kept global helpers on window (changePage, changeItemsPerPage).  
+ • Added explicit re‑binding of context‑menu and drag‑drop handlers after each render.  
+2. **filePreview.js**  
+ • Moved “Preview” and “Share” modal code here (previewFile, openShareModal, plus displayFilePreview helper).  
+ • Exposed window.previewFile for inline onclick compatibility.  
+3. **fileEditor.js**  
+ • Isolated CodeMirror editor logic (editFile, saveFile, sizing, theme toggles).  
+ • Exported utility functions (getModeForFile, adjustEditorSize, observeModalResize).  
+4. **fileDragDrop.js**  
+ • Encapsulated all drag‑start and folder drag/drop handlers (fileDragStartHandler, folderDragOverHandler, etc.).  
+5. **fileMenu.js** (formerly contextMenu.js)  
+ • Centralized right‑click context menu construction and binding (showFileContextMenu, fileListContextMenuHandler, bindFileListContextMenu).  
+ • Now calls the correct single vs. multi‑tag modals.  
+6. **fileActions.js**  
+ • Consolidated all “Delete”, “Copy”, “Move”, “Download Zip”, “Extract Zip”, “Rename” workflows and their modals.  
+ • Exposed initFileActions() to wire up toolbar buttons on page load.  
+7. **fileManager.js** (entry point)  
+ • Imports all the above modules.  
+ • On DOM ready: calls initFileActions(), attaches folder tree drag/drop, and global key handlers.
+
+Changelog: OIDC, Basic Auth & TOTP Integration
+
+1. **auth.php (OIDC)**  
+ • Detects callback via `?code` or `?oidc=callback`.  
+ • Checks for a TOTP secret after OIDC auth, stores pending login in session, redirects with `?totp_required=1`.  
+ • Finalizes session only after successful TOTP verification.  
+
+2. **login_basic.php (Basic Auth)**  
+ • After password verification, checks for TOTP secret.  
+ • Stores pending login & secret in session, redirects to TOTP modal.  
+ • Completes session setup only after TOTP verification.  
+
+3. **authModals.js & auth.js**  
+ • Detect `?totp_required=1` and open the TOTP modal.  
+ • Override `showToast` to suppress “Please log in…” during TOTP.  
+ • Wrap `openTOTPLoginModal` to disable Basic/OIDC buttons (but keep form-login visible).  
+ • On invalid TOTP code, keep modal open, clear input, and refocus for retry.  
+
+4. **totp_verify.php**  
+ • Consolidates login and setup TOTP flows in one endpoint.  
+ • Enforces CSRF token and authentication guard.  
+ • Verifies TOTP, regenerates session on success, and clears pending state.  
+ • Production‑hardened: secure cookies, CSP header, rate‑limiting (5 attempts), standardized JSON responses, and robust error handling.
+
+---
+
+## changes 4/4/2025
+
+- fix(`download.php`): mitigate path traversal vulnerability by validating folder and file inputs
+- Fixed OIDC login button DOM.
+- Fixed userPermissions calling username before declared.
+- Fixed config.php loadUserPermissions issue.
+- Chain Initialization After CSRF Token Is Loaded
+- loadCsrfTokenWithRetry
+
+---
+
+## changes 4/3/2025
+
+Change Log for dragAndDrop.js Enhancements
+
+- **Header Drop Zone Integration:**
+  - Added a new header drop zone (`#headerDropArea`) to support dragging cards (Upload and Folder Management) into the header.
+  - Created functionality to display a compact Material icon in the header when a card is dropped there.
+
+- **Modal Popup for Header Cards:**
+  - Implemented a modal overlay that displays the full card when the user hovers or clicks the header icon.
+  - Added toggle functionality so that the modal can be locked open or auto-hide based on mouse interactions.
+
+- **State Preservation via Hidden Container:**
+  - Introduced a hidden container (`#hiddenCardsContainer`) to preserve the original state of the Upload and Folder Management cards.
+  - Modified logic so that instead of removing these cards from the DOM when dropped into the header, they are moved to the hidden container.
+  - Updated modal show/hide functions to move the card from the hidden container into the modal (and back), ensuring interactive elements (e.g., folder tree, file selection) remain fully initialized and retain their state across page refreshes.
+
+- **Local Storage Integration for Header Order:**
+  - Added `saveHeaderOrder()` and `loadHeaderOrder()` functions to persist the header drop zone order.
+  - Integrated header order saving/updating with drag-and-drop events so that header placements are maintained after refresh.
+
+- **General Drag & Drop Enhancements:**
+  - Maintained smooth drag-and-drop animations and reflow for all drop zones (sidebar, top, and header).
+  - Ensured existing functionalities (like file uploads and folder tree interactions) work seamlessly alongside the new header drop zone.
+  
+## Brief Description
+
+The enhancements extend the existing drag-and-drop functionality by adding a header drop zone where cards are represented by a compact Material icon. To preserve interactive state (such as the folder tree’s current folder or file input functionality) across page refreshes, the original cards are never fully removed from the DOM. Instead, they are moved into a hidden container, and when a user interacts with the header icon, the card is temporarily transferred into a modal overlay for full interaction. When the modal is closed, the card is returned to the hidden container, ensuring that its state remains intact. Additionally, header order is saved to local storage so that user-customized layouts persist across sessions.
+
+---
+
+## changes 4/2/2025
+
+- **Admin Panel - User Permissions**
+  - folderOnly - User gets their own root folder.
+  - readOnly - User can't delete, rename, move, copy and other endpoints are blocked.
+  - disableUpload - User can't upload any files.
+  - Encrypted json 'userPermissions.json'
+  - Created 'updateUserPermissions.php' & 'getUserPermissions.php'
+
+- **TOTP Confirmation**
+  - Must confirm code before it will enable TOTP.
+  - 'totp_verify.php' & 'totp_disable.php' were created
+
+- **Basic Auth & OIDC fixes**
+  - Fixed session issues
+  - Improvements for both Basic Auth & OIDC
+
+- Path Normalization
+- Folder Rendering Adjustments
+- Folder Creation Logic adjusted
+- User Panel added username
+- Admin Panel added version number
+- Metadata Adjustments
+- Toast moved to bottom right
+- Help function 'loadUserPermissions()'
+- 'auth.js' split into 'authModals.js'
+- Empty 'createdTags.json' added
+- Enable MKV video playback if supported
+- Custom toast opacity increased
+- Fixed fileDragStartHandler to work with tagFiles
+- And more
+
+---
+
+## changes 3/31/2025
+
+- **Chunk merging logic updated to attempt to clear any resumable issues**
+
+- **Implemented Video Progress Saving and Resuming**
+
+- **Context Menu Tagging:**  
+  - "Tag File" option for single files; "Tag Selected" for multiple files.
+- **Tagging Modals:**  
+  - Separate modals for single‑ and multi‑file tagging with custom dropdowns.
+- **Global Tag Store:**  
+  - Reusable tags persisted via `createdTags.json`; dropdown shows tag color and remove icon.
+- **Unified Search:**  
+  - Single search box filters files by name or associated tag(s).
+
+- **saveFileTag.php:**  
+  - Saves file-specific tags and updates global tags (supports removal).
+- **getFileList.php:**  
+  - Returns tag data for each file and the global tag list.
+
+- Added `openMultiTagModal()` for batch tagging.
+- Custom dropdowns with colored tag previews and removal buttons.
+- Filtering logic updated in table and gallery views to combine file name and tag searches.
+
+## changes 3/30/2025
+
+- **New Feature:** Generates a QR code for TOTP setup using the Endroid QR Code library.
+- **TOTP Secret Management:**  
+  - Retrieves the current user's TOTP secret from the users file.
+  - If no secret exists, generates a new one using RobThree\Auth\TwoFactorAuth and stores it (encrypted).
+- **Global OTPAuth URL Integration:**  
+  - Checks for a global OTPAuth URL in the admin configuration.
+  - If provided, replaces the `{label}` and `{secret}` placeholders in the URL template; otherwise, falls back to a default otpauth URL.
+- **Security:**  
+  - Enforces session authentication.
+  - Verifies the CSRF token passed via GET parameters.
+
+- **New Feature:** Handles AJAX requests to update the user’s TOTP settings from the User Panel.
+- **TOTP Enable/Disable Handling:**  
+  - If TOTP is disabled, clears the user's TOTP secret from the users file.
+  - If TOTP remains enabled, leaves the stored secret intact.
+- **Security:**  
+  - Validates user authentication and CSRF token before processing the update.
+- **Response:**  
+  - Returns a JSON response indicating whether TOTP has been enabled or disabled successfully.
+
+- **New TOTP Settings Section:**  
+  - A "TOTP Settings" fieldset has been added to the User Panel modal.
+- **Automatic TOTP Setup Trigger:**  
+  - When the "Enable TOTP" checkbox is checked, it automatically triggers the TOTP Setup Modal to display the QR code.
+- **State Management**  
+- **UI Improvements:**  
+  - All modals (User Panel, TOTP Setup, and TOTP Login) now support dark mode styling.
+
+- **Error Handling & Security:**  
+  - Enhanced error handling across all new TOTP-related endpoints.
+  - Added extra CSRF and authentication checks to improve security.
+- **User Experience:**  
+  - Streamlined the onboarding process for TOTP by integrating automatic modal triggers and real-time configuration updates.
+
+---
+
+## changes 3/29/2025
+
+**Frontend (JavaScript)**  
+
+**File:** `auth.js`
+
+- **Added OIDC Login Flow**
+  - Created a dedicated OIDC login button (`oidcLoginBtn`).
+  - Redirects users to OIDC authentication via `auth.php?oidc`.
+
+- **Admin Panel Button**
+  - Added an “Admin Panel” button (`adminPanelBtn`) with a Material icon (`admin_panel_settings`).
+  - Inserted Admin Panel button directly after the Restore button in the header.
+
+- **Admin Panel Modal**
+  - Built a fully-featured admin panel modal with fields to edit:
+    - OIDC Provider URL
+    - Client ID
+    - Client Secret
+    - Redirect URI
+  - Options to disable Form Login, Basic Auth, or OIDC login methods individually.
+  - Integrated real-time constraint enforcement to ensure at least one authentication method is always enabled.
+  - Saved admin preferences into local storage and backend (via `updateConfig.php`).
+
+- **Dynamic UI Updates**
+  - Added functions (`updateLoginOptionsUI`, `updateLoginOptionsUIFromStorage`) to dynamically show/hide login elements based on admin preferences.
+
+⸻
+
+**Backend (PHP)**  
+
+**File:** `auth.php`
+
+- **OIDC Authentication**
+  - Integrated Jumbojett’s OpenID Connect client to handle OIDC flows.
+  - Reads OIDC configuration from an encrypted JSON file (`adminConfig.json`).
+  - Redirects users to OIDC provider and handles callbacks properly, authenticating users and initiating PHP sessions.
+
+- **Security Enhancements**
+  - Implemented robust error handling for authentication failures.
+  - Session regeneration after successful login to mitigate session fixation risks.
+
+**Configuration Handling**  
+
+**File:** `getConfig.php`
+
+- **Secure Configuration Retrieval**
+  - Retrieves encrypted OIDC configuration from disk.
+  - Decrypts and sends JSON configuration securely to the frontend.
+  - Defaults provided if configuration does not exist.
+
+**File:** `updateConfig.php`
+
+- **Secure Configuration Updates**
+  - Strictly checks for authenticated admin sessions and validates CSRF tokens.
+  - Validates and sanitizes user input thoroughly (OIDC URL, client ID, secret, redirect URI).
+  - Updates encrypted configuration file securely, ensuring atomic writes (`LOCK_EX`).
+
+- **Consistent Styling**
+  - Modal dynamically adjusts styling based on dark/light modes.
+  - Improved accessibility with clear icons, visual hierarchy, and structured form fields.
+
+- **Enhanced Feedback**
+  - Toast notifications clearly communicate success/error messages for user/admin actions.
+
+⸻
+
+**Security and Best Practices**  
+
+- OIDC credentials are securely stored in an encrypted JSON configuration file.
+- Implemented proper sanitization and validation of input data.
+- Protected sensitive admin routes (`updateConfig.php`) with CSRF validation and strict access control.
+
+⸻
+
+**Possible Improvements**  
+
+- **OIDC Logout Support:** Add explicit logout from OIDC providers.
+- **OIDC Discovery Endpoint:** Automatically fetch provider details from `.well-known/openid-configuration`.
+- **Advanced User Mapping:** Allow administrators to map OIDC claims to internal user roles dynamically.
+
+---
+
+## changes 3/27/2025
+
+- Basic Auth added for login.
+- Audio files supported for playback mp3|wav|m4a|ogg|flac|aac|wma|opus
+
+---
+
+## changes 3/26/2025
+
+- New name change FileRise - Elevate your file management.
+- Animated logo that rises up once for 3 seconds and falls back down
+- New Side Bar and Top Bar drop areas
+  - Drag and Drop Upload & Folder Management cards
+  - Vertical slide up effect when dropping cards
+- Fixed double root folders when only root folder exist
+- Adjusted side bar drop zone
+
+---
+
+## changes 3/25/2025
+
+- **Context Menu Enhancements:**
+  - **Right‑Click Context Menu:**
+    - Added context menu support for file list rows so that right‑clicking shows a custom menu.
+    - When multiple files are selected, options like “Delete Selected”, “Copy Selected”, “Move Selected”, “Download Zip” are shown.
+    - When a file with a “.zip” extension is among the selections, an “Extract Zip” option is added.
+  - **Single File Options:**
+    - For a single selected file, additional items (“Preview”, “Edit”, and “Rename”) are appended.
+    - The “Edit” option appears only if `canEditFile(file.name)` returns true.
+- **Keyboard Shortcuts:**
+  - **Delete Key Shortcut:**
+    - Added a global keydown listener to detect the Delete (or Backspace on Mac) key.
+    - When pressed (and if no input/textarea is focused) with files selected, it triggers `handleDeleteSelected()` to open the delete confirmation modal.
+- **Modals & Enter-Key Handling:**
+  - **attachEnterKeyListener Update:**
+    - Modified the function to use the “keydown” event (instead of “keypress”) for better reliability.
+    - Ensured the modal is made focusable (by setting a `tabindex="-1"`) and focused immediately after being displayed.
+    - This update was applied to modals for rename, download zip, and delete operations.
+  - **Delete Modal Specific:**
+    - It was necessary to call `attachEnterKeyListener` for the delete modal after setting its display to “block” to ensure it captures the Enter key.
+- **File Editing Adjustments:**
+  - **Content-Length Check:**
+    - Modified the `editFile` function so that it only blocks files when the Content-Length header is non‑null and greater than 10 MB.
+    - This change allows editing of 0 KB files (or files with Content-Length “0”) without triggering the “File too large” error.
+
+- **Context Menu for Folder Manager:**
+  - Provided a separate implementation for a custom context menu for folder manager elements.
+  - Bound the context menu to both folder tree nodes (`.folder-option`) and breadcrumb links (`.breadcrumb-link`) so that right‑clicking on either triggers a custom menu.
+  - The custom menu for folders includes actions for “Create Folder”, “Rename Folder”, and “Delete Folder.”
+  - Added guidance to ensure that breadcrumb HTML elements contain the appropriate class and `data-folder` attribute.
+- **Keyboard Shortcut for Folder Deletion (Suggestion):**
+  - Suggested adding a global keydown listener in `folderManager.js` to trigger folder deletion (via `openDeleteFolderModal()`) when Delete/Backspace is pressed and a folder other than “root” is selected.
+
+- **Event Listener Timing:**
+  - Ensured that context menu and key event listeners are attached after the corresponding DOM elements are rendered.
+  - Added explicit focus calls (and `tabindex` attributes) for modals to capture keyboard events.
+
+---
+
+## changes 3/24/2025
+
+### config.php
+
+- **Encryption Functions Added:**
+  - Introduced `encryptData()` and `decryptData()` functions using AES‑256‑CBC to encrypt and decrypt persistent tokens.
+- **Encryption Key Handling:**
+  - Added code to load the encryption key from an environment variable (`PERSISTENT_TOKENS_KEY`) with a fallback default.
+- **Persistent Token Auto-Login:**
+  - Modified the auto-login logic to check for a `remember_me_token` cookie.
+  - If the persistent tokens file exists, it now reads and decrypts its content before decoding JSON.
+  - If a token is expired, the code removes the token, re-encrypts the updated array, writes it back to disk, and clears the cookie.
+- **Cookie and Session Settings:**
+  - No major changes aside from integrating the encryption functionality into the token handling.
+
+### auth.php
+
+- **Login Process and “Remember Me” Functionality:**
+  - When “Remember me” is checked, generates a secure random token.
+  - Loads the persistent tokens file (if it exists), decrypts its content, and decodes the JSON.
+  - Inserts the new token (with associated username and expiry) into the persistent tokens array.
+  - Encrypts the updated tokens array and writes it back to the file.
+  - Sets the `remember_me_token` cookie using the `$secure` flag and expiry.
+- **Authentication & Brute Force Protection:**
+  - The authentication logic and brute-force protection remain largely unchanged.
+
+### logout.php
+
+- **Persistent Token Removal:**
+  - If a `remember_me_token` cookie exists, the script loads the persistent tokens file, decrypts its content, removes the token if present, re-encrypts the array, and writes it back.
+- **Cookie Clearance and Session Destruction:**
+  - Clears the `remember_me_token` cookie.
+  - Destroys session data as before.
+
+### networkUtils.js
+
+- **Fetch Wrapper Enhancements:**
+  - Modified `sendRequest()` to clone the response before attempting to parse JSON.
+  - If JSON parsing fails (e.g., because of unexpected response content), the cloned response is used to read the text, preventing the “Body is disturbed or locked” error.
+- **Error Handling Improvements:**
+  - Improved error handling by ensuring the response body is read only once.
+
+---
+
+## changes 3/23/2025 v1.0.1
+
+- **Resumable File Upload Integration and Folder Support**
+  - **Legacy Drag-and-Drop Folder Uploads:**
+    - Supports both file and folder uploads via drag-and-drop.
+    - Recursively traverses dropped folders to extract files.
+    - Uses original XHR-based upload code for folder uploads so that files are placed in the correct folder (i.e. based on the current folder in the app’s folder tree).
+  - **Resumable.js for File Picker Uploads:**
+    - Integrates Resumable.js for file uploads via the file picker.
+    - Provides pause, resume, and retry functionality:
+    - Pause/Resume: A pause/resume button is added for each file selected via the file picker. When the user clicks pause, the file upload pauses and the button switches to a “play” icon. When the user clicks it again, the system triggers a resume sequence (calling the upload function twice to ensure proper restart).
+    - Retry: If a file upload encounters an error, the pause/resume button changes to a “replay” icon, allowing the user to retry the upload.
+    - During upload, the UI displays the progress percentage along with the calculated speed (bytes/KB/MB per second).
+    - Files are previewed using material icons for non-image files and actual image previews for image files (using a helper function that creates an object URL for image files).
+  - **Temporary Chunk Folder Removal:**
+    - When a user cancels an upload via the remove button (X), a POST request is sent to a PHP endpoint (removeChunks.php) that:
+    - Validates the CSRF token.
+    - Recursively deletes the temporary folder (which stores file chunks) from the uploads directory.
+  - **Additional Details:**
+    - The file list UI remains visible (instead of auto-disappearing after 5 seconds) if there are any files still present or errors, ensuring that users can retry failed uploads.
+    - The system uses a chunk size of 3MB and supports multiple simultaneous uploads.
+    - All endpoints include CSRF protection and input validation to ensure secure operations.
+
+---
+
+## changes 3/22/2025
+
+- Change Password added and visibile to all users.
+- Brute force protection added and a log file for fail2ban created
+- Fix add user and setup user issue
+- Added folder breadcrumb with drag and drop support
+
+---
+
+## changes 3/21/2025 v1.0.0
+
+- **Trash Feature Implementation**
+  - Added functionality to move deleted files to a Trash folder.
+  - Implemented trash metadata storage (trash.json) capturing original folder, file name, trashed timestamp, uploader, and deletedBy.
+  - Developed restore feature allowing admins to restore individual or all files from Trash.
+  - Developed delete feature allowing permanent deletion (Delete Selected and Delete All) from Trash.
+  - Implemented auto-purge of trash items older than 3 days.
+  - Updated trash modal design for better user experience.
+  - Incorporated material icons with tooltips in restore/delete buttons.
+  - Improved responsiveness of the trash modal with a centered layout and updated CSS.
+  - Fixed issues where trashed files with missing metadata were not restored properly.
+  - Resolved problems with the auto-purge mechanism when trash.json was empty or contained unexpected data.
+  - Adjusted admin button logic to correctly display the restore button for administrators.
+  - Improved error handling on restore and delete actions to provide more informative messages to users.
+- **Other changes**
+  - CSS adjusted (this needs to be refactored)
+  - Fixed setup mode CSRF issue in addUser.php
+  - Adjusted modals buttons in index.html & folderManager.js
+  - Changed upload.php safe pattern
+  - Hide trash folder
+  - Reworked auth.js
+
+---
+
+## changes 3/20/2025
+
+- **Drag & Drop Feature**
+  - For a single file: shows a file icon alongside the file name.
+  - For multiple files: shows a file icon and a count of files.
+  - Styling Adjustments:
+  - Modified drag image styling (using inline-flex, auto width, and appropriate padding) so that the drag image only sizes to its content and does not extend off the screen.
+  - Revised the folder drop handler so that it reads the array of file names from the drag data and sends that array (instead of a single file name) to the server (moveFiles.php) for processing.
+  - Attached dragover, dragleave, and drop event listeners to folder tree nodes (the elements with the class folder-option) to enable a drop target.
+  - Added a global dragover event listener (in main.js) that auto-scrolls the page when the mouse is near the top or bottom of the viewport during a drag operation. This ensures you can reach the folder tree even if you’re far down the file list.
+
+---
+
+## changes 3/19/2025
+
+## Session & Security Enhancements
+
+- **Secure Session Cookies:**  
+  - Configured session cookies with a 2-hour lifetime, HTTPOnly, and SameSite settings.
+  - Regenerating the session ID upon login to mitigate session fixation.
+- **CSRF Protection:**  
+  - Ensured the CSRF token is generated in `config.php` and returned via a `token.php` endpoint.
+  - Updated front-end code (e.g. in `main.js`) to fetch the CSRF token and update meta tags.
+- **Session Expiration Handling:**  
+  - Updated the `loadFileList` and other functions to check for HTTP 401 responses and trigger a logout or redirect if the session has expired.
+
+## File Management Improvements
+
+### Unique Naming to Prevent Overwrites
+
+- **Copy & Move Operations:**  
+  - Added a helper function `getUniqueFileName()` to both `copyFiles.php` and `moveFiles.php` that checks for duplicates and appends a counter (e.g., “ (1)”) until a unique filename is determined.
+  - Updated metadata handling so that when a file is copied/moved and renamed, the corresponding metadata JSON (per-folder) is updated using the new unique filename.
+- **Rename Functionality:**  
+  - Updated `renameFile.php` to:
+    - Allow filenames with parentheses by updating the regex.
+    - Check if a file with the new name already exists.
+    - Generate a unique name using similar logic if needed.
+    - Update folder-specific metadata accordingly.
+
+### Metadata Management
+
+- **Per-Folder Metadata Files:**  
+  - Changed metadata storage so that each folder uses its own metadata file (e.g., `root_metadata.json` for the root folder and `FolderName_metadata.json` for subfolders).
+  - Updated metadata file path generation functions to replace slashes, backslashes, and spaces with dashes.
+
+## Gallery / Grid View Enhancements
+
+- **Gallery (Grid) View:**  
+  - Added a toggle option to switch between a traditional table view and a gallery view.
+  - The gallery view arranges image thumbnails in a grid layout with configurable column options (e.g., 3, 4, or 5 columns).
+  - Under each thumbnail, action buttons (Download, Edit, Rename, Share) are displayed for quick access.
+- **Preview Modal Enhancements:**  
+  - Updated the image preview modal to include navigation buttons (prev/next) for browsing through images.
+  - Improved scaling and styling of preview modals for a better user experience.
+
+## Share Link Functionality
+
+- **Share Link Generation (createShareLink.php):**  
+  - Generate shareable links for files with:
+    - A secure token.
+    - Configurable expiration times (including options for 30, 60, 120, 180, 240 minutes, and a 1-day option).
+    - Optional password protection (passwords are hashed).
+  - Store share links in a JSON file (`share_links.json`) with details (folder, file, expiration timestamp, hashed password).
+- **Share Endpoint (share.php):**  
+  - Validate tokens, expiration, and passwords.
+  - Serve files inline for images or force download for other file types.
+  - Share URL is configurable via environment variables or auto-detected from the server.
+- **Front-End Configuration:**  
+  - Created a `token.php` endpoint that returns CSRF token and SHARE_URL.
+  - Updated the front-end (in `main.js`) to fetch configuration data and update meta tags for CSRF and share URL, allowing index.html to remain static.
+
+## Apache & .htaccess / Server Security
+
+- **Disable Directory Listing:**  
+  - Recommended adding an .htaccess file (e.g., in `uploads/`) with `Options -Indexes` to disable directory indexing.
+- **Restrict Direct File Access:**  
+  - Protected sensitive files (e.g., users.txt) via .htaccess.
+  - Filtered out hidden files (files beginning with a dot) from the file list in `getFileList.php`.
+- **Proxy Download:**  
+  - A proxy download mechanism has been implemented (via endpoints like `download.php` and `downloadZip.php`) so that every file download request goes through a PHP script. This script validates the session and CSRF token before streaming the file, ensuring that even if a file URL is guessed, only authenticated users can access it.
+
+---
+
+## changes 3/18/2025
+
+- **CSRF Protection:** All state-changing endpoints (such as those for folder and file operations) include CSRF token validation to ensure that only legitimate requests from authenticated users are processed.
+
+---
+
+## changes 3/17/2025
+
+- refactoring/reorganize domUtils, fileManager.js & folerManager.js
+
+---
+
+## changes 3/15/2025
+
+- Preview video, images or PDFs added
+- Different material icons for each
+- Custom css to adjust centering
+- Persistent folder tree view
+- Fixed folder tree alignment
+- Persistent last opened folder
+
+---
+
+## changes 3/14/2025
+
+- Style adjustments
+- Folder/subfolder upload support
+- Persistent UI elements Items Per Page & Dark/Light modes.
+- File upload scrollbar list
+- Remove files from upload list
+
+---
+
+## changes 3/11/2025
+
+- CSS Refactoring
+- Dark / Light Modes added which automatically adapts to the operating system’s theme preference by default, with a manual toggle option.
+- JS inlines moved to CSS
+
+---
+
+## changes 3/10/2025
+
+- File Editing Enhancements:
+  - Integrated CodeMirror into the file editor modal for syntax highlighting, line numbers, and adjustable font size.
+  - Added zoom in/out controls (“A-” / “A+”) in the editor modal to let users adjust the text size and number of visible lines.
+  - Updated the save function to retrieve edited content from the CodeMirror instance (using editor.getValue()) instead of the underlying textarea.
+- Image Preview Improvements:
+  - Added a new “Preview” button (with a Material icon) in the Actions column for image files.
+  - Implemented an image preview modal that centers content using flexbox, scales images using object-fit: contain, and maintains the original aspect ratio.
+  - Fixed URL encoding for subfolder paths so that images in subfolders (e.g. NewFolder2/Vita) load correctly without encoding slashes.
+- Download ZIP Modal Updates:
+  - Replaced the prompt-based download ZIP with a modal dialog that allows users to enter a custom name for the ZIP file.
+  - Updated the modal logic to ensure proper flow (cancel/confirm) and pass the custom filename to the download process.
+- Folder URL Handling:
+  - Modified the folder path construction in the file list rendering to split folder names into segments and encode each segment individually. This prevents encoding of slashes, ensuring correct URLs for files in subfolders.
+- General UI & Functionality:
+  - Ensured that all global functions (e.g., toggleRowSelection, updateRowHighlight, and sortFiles) are declared and attached to window so that inline event handlers can access them.
+  - Maintained responsive design, preserving existing features such as pagination, sorting, batch operations (delete, copy, move), and folder management.
+  - Updated event listener initialization to work with new modal features and ensure smooth UI interactions.
+
+---
+
+## changes 3/8/2025
+
+- Validation was added in endpoints.
+- Toast notifications were implemented in domUtils.js and integrated throughout the app.
+- Modals replaced inline prompts and confirms for rename, create, delete, copy, and move actions.
+- Folder tree UI was added and improved to be interactive plus reflect the current state after actions.
+
+---
+
+## changes 3/7/2025
+
+- **Module Refactoring:**
+  - Split the original `utils.js` into multiple ES6 modules for network requests, DOM utilities, file management, folder management, uploads, and authentication.
+  - Converted all code to ES6 modules with `import`/`export` syntax and exposed necessary functions globally.
+- **File List Rendering & Pagination:**
+  - Implemented pagination in `fileManager.js` to allow displaying 10, 20, 50, or 100 items per page.
+  - Added global functions (`changePage` and `changeItemsPerPage`) for pagination control.
+  - Added a pagination control section below the file list table.
+- **Date Sorting Enhancements:**
+  - Created a custom date parser (`parseCustomDate`) to convert date strings.
+  - Adjusted the parser to handle two-digit years by adding 2000.
+  - Integrated the parser into the sorting function to reliably sort “Date Modified” and “Upload Date” columns.
+- **File Upload Improvements:**
+  - Enabled multi-file uploads with individual progress tracking (visible for the first 10 files).
+  - Ensured that the file list refreshes immediately after uploads complete.
+  - Kept the upload progress list visible for a configurable delay to allow users to verify upload success.
+  - Reattached event listeners after the file list is re-rendered.
+- **File Action Buttons:**
+  - Unified button state management so that Delete, Copy, and Move buttons remain visible as long as files exist, and are only enabled when files are selected.
+  - Modified the logic in `updateFileActionButtons` and removed conflicting code from `initFileActions`.
+  - Ensured that the folder dropdown for copy/move is hidden when no files exist.
+- **Rename Functionality:**
+  - Added a “Rename” button to the Actions column for every file.
+  - Implemented a `renameFile` function that prompts for a new name, calls a backend script (`renameFile.php`) to perform the rename, updates metadata, and refreshes the file list.
+- **Responsive & UI Tweaks:**
+  - Applied CSS media queries to hide secondary columns on small screens.
+  - Adjusted file preview and icon styling for better alignment.
+  - Centered the header and optimized the layout for a clean, modern appearance.
+  
+*This changelog and feature summary reflect the improvements made during the refactor from a monolithic utils file to modular ES6 components, along with enhancements in UI responsiveness, sorting, file uploads, and file management operations.*
+
+---
+
+## Changes 3/4/2025
+
+- Copy & Move functionality added  
+- Header Layout  
+- Modal Popups (Edit, Add User, Remove User) changes  
+- Consolidated table styling  
+- CSS Consolidation  
+- assets folder  
+- additional changes and fixes
+
+---
+
+## Changes 3/3/2025
+
+- folder management added  
+- some refactoring  
+- config added USERS_DIR & USERS_FILE  

CONTRIBUTING.md

@@ -0,0 +1,243 @@
+# Contributing to FileRise
+
+Thank you for your interest in contributing to FileRise! We appreciate your help in making this self-hosted file manager even better.
+
+## Table of Contents
+
+- [Getting Started](#getting-started)
+- [Reporting Bugs](#reporting-bugs)
+- [Suggesting Enhancements](#suggesting-enhancements)
+- [Pull Requests](#pull-requests)
+- [Coding Guidelines](#coding-guidelines)
+- [Documentation](#documentation)
+- [Questions and Support](#questions-and-support)
+- [Adding New Language Translations](#adding-new-language-translations)
+
+## Getting Started
+
+1. **Fork the Repository**  
+   Click the **Fork** button on the top-right of the FileRise GitHub page to create your own copy.
+
+2. **Clone Your Fork**  
+
+   ```bash
+   git clone https://github.com/yourusername/FileRise.git
+   cd FileRise
+   ```
+
+3. **Set Up a Local Environment**
+FileRise runs on a standard LAMP stack. Ensure you have PHP, Apache, and the necessary dependencies installed.
+
+4. **Configuration**
+Copy any example configuration files (if provided) and adjust them as needed for your local setup.
+
+## Reporting Bugs
+
+If you discover a bug, please open an issue on GitHub and include:
+
+- A clear and descriptive title.
+- Detailed steps to reproduce the bug.
+- The expected and actual behavior.
+- Screenshots or error logs (if applicable).
+- Environment details (PHP version, Apache version, OS, etc.).
+
+## Suggesting Enhancements
+
+Have an idea for a new feature or improvement? Before opening a new issue, please check if a similar suggestion already exists. If not, open an issue with:
+
+- A clear description of the enhancement.
+- Use cases or examples of how it would be beneficial.
+- Any potential drawbacks or alternatives.
+
+## Pull Requests
+
+We welcome pull requests! To submit one, please follow these guidelines:
+
+1. **Create a New Branch**  
+   Always create a feature branch from master.
+
+   ```bash
+   git checkout -b feature/your-feature-name
+   ```
+
+2. **Make Your Changes**  
+   Commit your changes with clear, descriptive messages. Make sure your code follows the project’s style guidelines.
+
+3. **Write Tests**  
+   If applicable, add tests to cover your changes to help us maintain code quality.
+
+4. **Submit the Pull Request**  
+   Push your branch to your fork and open a pull request against the master branch in the main repository. Provide a detailed description of your changes and why they’re needed.
+
+## Coding Guidelines
+
+- **Code Style:**  
+  Follow the conventions used in the project. Consistent indentation, naming conventions, and clear code organization are key.
+
+- **Documentation:**  
+  Update documentation if your changes affect the usage or configuration of FileRise.
+
+- **Commit Messages:**  
+  Write meaningful commit messages that clearly describe the purpose of your changes.
+
+## Documentation
+
+If you notice any areas in the documentation that need improvement or updating, please feel free to include those changes in your pull requests. Clear documentation is essential for helping others understand and use FileRise.
+
+## Questions and Support
+
+If you have any questions, ideas, or need support, please open an issue or join our discussion on [GitHub Discussions](https://github.com/error311/FileRise/discussions). We’re here to help and appreciate your contributions.
+
+## Adding New Language Translations
+
+FileRise supports internationalization (i18n) and localization via a central translation file (`i18n.js`). If you would like to contribute a new language translation, please follow these steps:
+
+1. **Update `i18n.js`:**  
+   Open the `i18n.js` file located in the `js` directory. Within the `translations` object, add a new property using the appropriate [ISO language code](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) as the key. Copy the structure from an existing language block and translate each key.
+
+   **Example (for German):**
+
+   ```js
+   de: {
+     "please_log_in_to_continue": "Bitte melden Sie sich an, um fortzufahren.",
+     "no_files_selected": "Keine Dateien ausgewählt.",
+     "confirm_delete_files": "Sind Sie sicher, dass Sie {count} ausgewählte Datei(en) löschen möchten?",
+     "element_not_found": "Element mit der ID \"{id}\" wurde nicht gefunden.",
+     "search_placeholder": "Suche nach Dateien oder Tags...",
+     "file_name": "Dateiname",
+     "date_modified": "Änderungsdatum",
+     "upload_date": "Hochladedatum",
+     "file_size": "Dateigröße",
+     "uploader": "Hochgeladen von",
+     "enter_totp_code": "Geben Sie den TOTP-Code ein",
+     "use_recovery_code_instead": "Verwenden Sie stattdessen den Wiederherstellungscode",
+     "enter_recovery_code": "Geben Sie den Wiederherstellungscode ein",
+     "editing": "Bearbeitung",
+     "decrease_font": "A-",
+     "increase_font": "A+",
+     "save": "Speichern",
+     "close": "Schließen",
+     "no_files_found": "Keine Dateien gefunden.",
+     "switch_to_table_view": "Zur Tabellenansicht wechseln",
+     "switch_to_gallery_view": "Zur Galerieansicht wechseln",
+     "share_file": "Datei teilen",
+     "set_expiration": "Ablauf festlegen:",
+     "password_optional": "Passwort (optional):",
+     "generate_share_link": "Freigabelink generieren",
+     "shareable_link": "Freigabelink:",
+     "copy_link": "Link kopieren",
+     "tag_file": "Datei taggen",
+     "tag_name": "Tagname:",
+     "tag_color": "Tagfarbe:",
+     "save_tag": "Tag speichern",
+     "files_in": "Dateien in",
+     "light_mode": "Heller Modus",
+     "dark_mode": "Dunkler Modus",
+     "upload_instruction": "Ziehen Sie Dateien/Ordner hierher oder klicken Sie auf 'Dateien auswählen'",
+     "no_files_selected_default": "Keine Dateien ausgewählt",
+     "choose_files": "Dateien auswählen",
+     "delete_selected": "Ausgewählte löschen",
+     "copy_selected": "Ausgewählte kopieren",
+     "move_selected": "Ausgewählte verschieben",
+     "tag_selected": "Ausgewählte taggen",
+     "download_zip": "Zip herunterladen",
+     "extract_zip": "Zip entpacken",
+     "preview": "Vorschau",
+     "edit": "Bearbeiten",
+     "rename": "Umbenennen",
+     "trash_empty": "Papierkorb ist leer.",
+     "no_trash_selected": "Keine Elemente im Papierkorb für die Wiederherstellung ausgewählt.",
+  
+     // Additional keys for HTML translations:
+     "title": "FileRise",
+     "header_title": "FileRise",
+     "logout": "Abmelden",
+     "change_password": "Passwort ändern",
+     "restore_text": "Wiederherstellen oder",
+     "delete_text": "Papierkorbeinträge löschen",
+     "restore_selected": "Ausgewählte wiederherstellen",
+     "restore_all": "Alle wiederherstellen",
+     "delete_selected_trash": "Ausgewählte löschen",
+     "delete_all": "Alle löschen",
+     "upload_header": "Dateien/Ordner hochladen",
+  
+     // Folder Management keys:
+     "folder_navigation": "Ordnernavigation & Verwaltung",
+     "create_folder": "Ordner erstellen",
+     "create_folder_title": "Ordner erstellen",
+     "enter_folder_name": "Geben Sie den Ordnernamen ein",
+     "cancel": "Abbrechen",
+     "create": "Erstellen",
+     "rename_folder": "Ordner umbenennen",
+     "rename_folder_title": "Ordner umbenennen",
+     "rename_folder_placeholder": "Neuen Ordnernamen eingeben",
+     "delete_folder": "Ordner löschen",
+     "delete_folder_title": "Ordner löschen",
+     "delete_folder_message": "Sind Sie sicher, dass Sie diesen Ordner löschen möchten?",
+     "folder_help": "Ordnerhilfe",
+     "folder_help_item_1": "Klicken Sie auf einen Ordner, um dessen Dateien anzuzeigen.",
+     "folder_help_item_2": "Verwenden Sie [-] um zu minimieren und [+] um zu erweitern.",
+     "folder_help_item_3": "Klicken Sie auf \"Ordner erstellen\", um einen Unterordner hinzuzufügen.",
+     "folder_help_item_4": "Um einen Ordner umzubenennen oder zu löschen, wählen Sie ihn und klicken Sie auf die entsprechende Schaltfläche.",
+  
+     // File List keys:
+     "file_list_title": "Dateien in (Root)",
+     "delete_files": "Dateien löschen",
+     "delete_selected_files_title": "Ausgewählte Dateien löschen",
+     "delete_files_message": "Sind Sie sicher, dass Sie die ausgewählten Dateien löschen möchten?",
+     "copy_files": "Dateien kopieren",
+     "copy_files_title": "Ausgewählte Dateien kopieren",
+     "copy_files_message": "Wählen Sie einen Zielordner, um die ausgewählten Dateien zu kopieren:",
+     "move_files": "Dateien verschieben",
+     "move_files_title": "Ausgewählte Dateien verschieben",
+     "move_files_message": "Wählen Sie einen Zielordner, um die ausgewählten Dateien zu verschieben:",
+     "move": "Verschieben",
+     "extract_zip_button": "Zip entpacken",
+     "download_zip_title": "Ausgewählte Dateien als Zip herunterladen",
+     "download_zip_prompt": "Geben Sie einen Namen für die Zip-Datei ein:",
+     "zip_placeholder": "dateien.zip",
+  
+     // Login Form keys:
+     "login": "Anmelden",
+     "remember_me": "Angemeldet bleiben",
+     "login_oidc": "Mit OIDC anmelden",
+     "basic_http_login": "HTTP-Basisauthentifizierung verwenden",
+  
+     // Change Password keys:
+     "change_password_title": "Passwort ändern",
+     "old_password": "Altes Passwort",
+     "new_password": "Neues Passwort",
+     "confirm_new_password": "Neues Passwort bestätigen",
+  
+     // Add User keys:
+     "create_new_user_title": "Neuen Benutzer erstellen",
+     "username": "Benutzername:",
+     "password": "Passwort:",
+     "grant_admin": "Admin-Rechte vergeben",
+     "save_user": "Benutzer speichern",
+  
+     // Remove User keys:
+     "remove_user_title": "Benutzer entfernen",
+     "select_user_remove": "Wählen Sie einen Benutzer zum Entfernen:",
+     "delete_user": "Benutzer löschen",
+  
+     // Rename File keys:
+     "rename_file_title": "Datei umbenennen",
+     "rename_file_placeholder": "Neuen Dateinamen eingeben",
+  
+     // Custom Confirm Modal keys:
+     "yes": "Ja",
+     "no": "Nein",
+     "delete": "Löschen",
+     "download": "Herunterladen",
+     "upload": "Hochladen",
+     "copy": "Kopieren",
+     "extract": "Entpacken",
+  
+     // Dark Mode Toggle
+     "dark_mode_toggle": "Dunkler Modus"
+   }
+
+---
+
+Thank you for helping to improve FileRise and happy coding!

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2024 SeNS
+Copyright (c) 2025 FileRise
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,257 +1,182 @@
-# Multi File Upload Editor
+# FileRise
 
-https://github.com/user-attachments/assets/179e6940-5798-4482-9a69-696f806c37de
+**Elevate your File Management** – A modern, self-hosted web file manager.
+Upload, organize, and share files through a sleek web interface. **FileRise** is lightweight yet powerful: think of it as your personal cloud drive that you control. With drag-and-drop uploads, in-browser editing, secure user logins (with SSO and 2FA support), and one-click sharing, **FileRise** makes file management on your server a breeze.
 
-changelogs available here: <https://github.com/error311/multi-file-upload-editor-docker/>
+**4/3/2025 Video demo:**
 
-Multi File Upload Editor is a lightweight, secure, self-hosted web application for uploading, editing, and managing files. Built with an Apache/PHP backend and a modern JavaScript (ES6 modules) frontend, it offers a responsive, dynamic file management interface. It serves as an alternative to solutions like FileGator or ProjectSend, providing an easy-to-setup experience ideal for document management, image galleries, firmware file hosting, and more.
+<https://github.com/user-attachments/assets/221f6a53-85f5-48d4-9abe-89445e0af90e>
+
+**Dark mode:**
+![Dark Header](https://raw.githubusercontent.com/error311/FileRise/refs/heads/master/resources/dark-header.png)
 
 ---
 
-## Features
+## Features at a Glance or [Full Features Wiki](https://github.com/error311/FileRise/wiki/Features)
 
-- **Multiple File/Folder Uploads with Progress:**
-  - Users can select and upload multiple files & folders at once.
-  - Each file upload displays an individual progress bar with percentage and upload speed.
-  - Image files show a small thumbnail preview (with default Material icons for other file types).
-- **Built-in File Editing & Renaming:**
-  - Text-based files (e.g., .txt, .html, .js) can be opened and edited in a modal window using CodeMirror for:
-    - Syntax highlighting
-    - Line numbering
-    - Adjustable font sizes
-  - Files can be renamed directly through the interface.
-  - The renaming functionality now supports names with parentheses and checks for duplicate names, automatically generating a unique name (e.g., appending “ (1)”) when needed.
-  - Folder-specific metadata is updated accordingly.
-- **Built-in File Preview:**
-  - Users can quickly preview images, videos, and PDFs directly in modal popups without leaving the page.
-  - The preview modal supports inline display of images (with proper scaling) and videos with playback controls.
-  - Navigation (prev/next) within image previews is supported for a seamless browsing experience.
-- **Gallery (Grid) View:**
-  - In addition to the traditional table view, users can toggle to a gallery view that arranges image thumbnails in a grid layout.
-  - The gallery view offers multiple column options (e.g., 3, 4, or 5 columns) so that users can choose the layout that best fits their screen.
-  - Action buttons (Download, Edit, Rename, Share) appear beneath each thumbnail for quick access.
-- **Batch Operations (Delete/Copy/Move/Download):**
-  - **Delete Files:** Delete multiple files at once.
-  - **Copy Files:** Copy selected files to another folder with a unique-naming feature to prevent overwrites.
-  - **Move Files:** Move selected files to a different folder, automatically generating a unique filename if needed to avoid data loss.
-  - **Download Files as ZIP:** Download selected files as a ZIP archive. Users can specify a custom name for the ZIP file via a modal dialog.
-  - **Drag & Drop:** Easily move files by selecting them from the file list and simply dragging them onto your desired folder in the folder tree. When you drop the files onto a folder, the system automatically moves them, updating your file organization in one seamless action.
-- **Folder Management:**
-  - Organize files into folders and subfolders with the ability to create, rename, and delete folders.
-  - A dynamic folder tree in the UI allows users to navigate directories easily, and any changes are immediately reflected in real time.
-  - **Per-Folder Metadata Storage:** Each folder has its own metadata JSON file (e.g., `root_metadata.json`, `FolderName_metadata.json`), and operations (copy/move/rename) update these metadata files accordingly.
-- **Sorting & Pagination:**
-  - The file list can be sorted by name, modified date, upload date, file size, or uploader.
-  - Pagination controls let users navigate through files with selectable page sizes (10, 20, 50, or 100 items per page) and “Prev”/“Next” navigation buttons.
-- **Share Link Functionality:**
-  - Generate shareable links for files with configurable expiration times (e.g., 30, 60, 120, 180, 240 minutes, and a 1-day option) and optional password protection.
-  - Share links are stored in a JSON file with details including the folder, file, expiration timestamp, and hashed password.
-  - The share endpoint (`share.php`) validates tokens, expiration, and password before serving files (or forcing downloads).
-  - The share URL is configurable via environment variables or auto-detected from the server.
-- **User Authentication & Management:**
-  - Secure, session-based authentication protects the file manager.
-  - Admin users can add or remove users through the interface.
-  - Passwords are hashed using PHP’s `password_hash()` for security.
-  - All state-changing endpoints include CSRF token validation.
-- **Responsive, Dynamic & Persistent UI:**
-  - The interface is mobile-friendly and adapts to various screen sizes by hiding non-critical columns on small devices.
-  - Asynchronous updates (via Fetch API and XMLHttpRequest) keep the UI responsive without full page reloads.
-  - Persistent settings (such as items per page, dark/light mode preference, folder tree state, and the last open folder) ensure a smooth and customized user experience.
-- **Dark Mode/Light Mode:**
-  - The application automatically adapts to the operating system’s theme preference by default and offers a manual toggle.
-  - The dark mode provides a darker background with lighter text and adjusts UI elements (including the CodeMirror editor) for optimal readability in low-light conditions.
-  - The light mode maintains a bright interface for well-lit environments.
-- **Server & Security Enhancements:**
-  - The Apache configuration (or .htaccess files) is set to disable directory indexing (e.g., using `Options -Indexes` in the uploads directory), preventing unauthorized users from viewing directory contents.
-  - Direct access to sensitive files (e.g., `users.txt`) is restricted through .htaccess rules.
-  - A proxy download mechanism has been implemented (via endpoints like `download.php` and `downloadZip.php`) so that every file download request goes through a PHP script. This script validates the session and CSRF token before streaming the file, ensuring that even if a file URL is guessed, only authenticated users can access it.
-  - Administrators are advised to deploy the app on a secure internal network or use the proxy download mechanism for public deployments to further protect file content.
-- **Trash Management with Restore & Delete:**
-  - **Trash Storage & Metadata:**
-    - Deleted files are moved to a designated “Trash” folder rather than being immediately removed.
-    - Metadata is stored in a JSON file (`trash.json`) that records:
-      - Original folder and file name
-      - Timestamp when the file was trashed
-      - Uploader information (and optionally who deleted it)
-      - Additional metadata (e.g., file type)
-  - **Restore Functionality:**
-    - Admins can view trashed files in a modal.
-    - They can restore individual files (with conflict checks) or restore all files back to their original location.
-  - **Delete Functionality:**
-    - Users can permanently delete trashed files via:
-      - **Delete Selected:** Remove specific files from the Trash and update `trash.json`.
-      - **Delete All:** Permanently remove every file from the Trash after confirmation.
-  - **Auto-Purge Mechanism:**
-    - The system automatically purges (permanently deletes) any files in the Trash older than three days, helping manage storage and prevent the accumulation of outdated files.
-  - **User Interface:**
-    - The trash modal displays details such as file name, uploader/deleter, and the trashed date/time.
-    - Material icons with tooltips visually represent the restore and delete actions.
+- 🚀 **Easy File Uploads:** Upload multiple files and folders via drag & drop or file picker. Supports large files with pause/resumable chunked uploads and shows real-time progress for each file. No more failed transfers – FileRise will pick up where it left off if your connection drops.
+
+- 🗂️ **File Management:** Full set of file/folder operations – move or copy files (via intuitive drag-drop or dialogs), rename items, and delete in batches. You can even download selected files as a ZIP archive or extract uploaded ZIP files server-side. Organize content with an interactive folder tree and breadcrumb navigation for quick jumps.
+
+- 🗃️ **Folder Sharing & File Sharing:** Easily share entire folders via secure, expiring public links. Folder shares can be password-protected, and shared folders support file uploads from outside users with a separate, secure upload mechanism. Folder listings are paginated (10 items per page) with navigation controls, and file sizes are displayed in MB for clarity. Share files with others using one-time or expiring public links (with password protection if desired) – convenient for sending individual files without exposing the whole app.
+
+- 📝 **Built-in Editor & Preview:** View images, videos, audio, and PDFs inline with a preview modal – no need to download just to see them. Edit text/code files right in your browser with a CodeMirror-based editor featuring syntax highlighting and line numbers. Great for config files or notes – tweak and save changes without leaving FileRise.
+
+- 🏷️ **Tags & Search:** Categorize your files with color-coded tags (labels) and later find them easily. The global search bar filters by filename or tag, making it simple to locate that “important” document in seconds. Tag management is built-in – create, reuse, or remove tags as needed.
+
+- 🔒 **User Authentication & User Permissions:** Secure your portal with username/password login. Supports multiple users – create user accounts (admin UI provided) for family or team members. User permissions such as User “Folder Only” feature assigns each user a dedicated folder within the root directory, named after their username, restricting them from viewing or modifying other directories. User Read Only and Disable Upload are additional permissions. FileRise also integrates with Single Sign-On (OIDC) providers (e.g., OAuth2/OIDC for Google/Authentik/Keycloak) and offers optional TOTP two-factor auth for extra security.
+
+- 🎨 **Responsive UI (Dark/Light Mode):** FileRise is mobile-friendly out of the box – manage files from your phone or tablet with a responsive layout. Choose between Dark mode or Light theme, or let it follow your system preference. The interface remembers your preferences (layout, items per page, last visited folder, etc.) for a personalized experience each time.
+
+- 🌐 **Internationalization & Localization:** FileRise supports multiple languages via an integrated i18n system. Users can switch languages through a user panel dropdown, and their choice is saved in local storage for a consistent experience across sessions. Currently available in English, Spanish, and French—please report any translation issues you encounter.
+
+- 🗑️ **Trash & File Recovery:** Mistakenly deleted files? No worries – deleted items go to the Trash instead of immediate removal. Admins can restore files from Trash or empty it to free space. FileRise auto-purges old trash entries (default 3 days) to keep your storage tidy.
+
+- ⚙️ **Lightweight & Self-Contained:** FileRise runs on PHP 8.1+ with no external database required – data is stored in files (users, metadata) for simplicity. It’s a single-folder web app you can drop into any Apache/PHP server or run as a container. Docker & Unraid ready: use our pre-built image for a hassle-free setup. Memory and CPU footprint is minimal, yet the app scales to thousands of files with pagination and sorting features.
+
+(For a full list of features and detailed changelogs, see the [Wiki](https://github.com/error311/FileRise/wiki), [changelog](https://github.com/error311/FileRise/blob/master/CHANGELOG.md) or the [releases](https://github.com/error311/FileRise/releases) pages.)
 
 ---
 
-## Screenshots
+## Live Demo
 
-**Light mode**
-![Light Mode](https://raw.githubusercontent.com/error311/multi-file-upload-editor/refs/heads/master/resources/light-mode.png)
-
-**Dark mode**
-![Dark Mode](https://raw.githubusercontent.com/error311/multi-file-upload-editor/refs/heads/master/resources/dark-mode.png)
-
-**Dark editor**
-![dark-editor](https://raw.githubusercontent.com/error311/multi-file-upload-editor/refs/heads/master/resources/dark-editor.png)
-
-**Dark preview**
-![dark-preview](https://raw.githubusercontent.com/error311/multi-file-upload-editor/refs/heads/master/resources/dark-preview.png)
-
-**Restore or Delete Trash**
-![restore-delete](https://raw.githubusercontent.com/error311/multi-file-upload-editor/refs/heads/master/resources/restore-delete.png)
-
-**Login page**
-![Login](https://raw.githubusercontent.com/error311/multi-file-upload-editor/refs/heads/master/resources/login-page.png)
-
-  **iphone screenshots:**  
-<p align="center">
-  <img src="https://raw.githubusercontent.com/error311/multi-file-upload-editor/refs/heads/master/resources/dark-iphone.png" width="45%">
-  <img src="https://raw.githubusercontent.com/error311/multi-file-upload-editor/refs/heads/master/resources/light-preview-iphone.png" width="45%">
-</p>
+Curious about the UI? **Check out the live demo:** <https://demo.filerise.net> (login with username “demo” and password “demo”). *The demo is read-only for security*. Explore the interface, switch themes, preview files, and see FileRise in action!
 
 ---
 
 ## Installation & Setup
 
-### Manual Installation
+You can deploy FileRise either by running the **Docker container** (quickest way) or by a **manual installation** on a PHP web server. Both methods are outlined below.
 
-1. **Clone or Download the Repository:**
-   - **Clone:**  
+### 1. Running with Docker (Recommended)
 
-     ```bash
-     git clone https://github.com/error311/multi-file-upload-editor.git
-     ```
+If you have Docker installed, you can get FileRise up and running in minutes:
 
-   - **Download:**  
-     Download the latest release from the GitHub releases page and extract it into your desired directory.
+- **Pull the image from Docker Hub:**
 
-2. **Deploy to Your Web Server:**
-   - Place the project files in your Apache web directory (e.g., `/var/www/html`).
-   - Ensure PHP 8.1+ is installed along with the required extensions (php-json, php-curl, php-zip, etc.).
+``` bash
+docker pull error311/filerise-docker:latest
+```
 
-3. **Directory Setup & Permissions:**
-   - Create the following directories if they do not exist, and set appropriate permissions:
-     - `uploads/` – for file storage.
-     - `users/` – to store `users.txt` (user authentication data).
-     - `metadata/` – for storing `file_metadata.json` and other metadata.
-   - Example commands:
+*(For Apple Silicon (M1/M2) users, use --platform linux/amd64 tag until multi-arch support is added.)*  
 
-     ```bash
-     mkdir -p /var/www/uploads /var/www/users /var/www/metadata
-     chmod -R 775 /var/www/uploads /var/www/users /var/www/metadata
-     ```
+- **Run a container:**
 
-4. **Configure Apache:**
-   - Ensure that directory indexing is disabled (using `Options -Indexes` in your `.htaccess` or Apache configuration).
-   - Make sure the Apache configuration allows URL rewriting if needed.
+``` bash
+docker run -d \
+  -p 8080:80 \
+  -e TIMEZONE="America/New_York" \
+  -e TOTAL_UPLOAD_SIZE="5G" \
+  -e SECURE="false" \
+  -v ~/filerise/uploads:/var/www/uploads \
+  -v ~/filerise/users:/var/www/users \
+  -v ~/filerise/metadata:/var/www/metadata \
+  --name filerise \
+  error311/filerise-docker:latest
+  ```
 
-5. **Configuration File:**
-   - Open `config.php` and adjust the following constants as necessary:
-     - `BASE_URL`: Set this to your web app’s base URL.
-     - `UPLOAD_DIR`: Adjust the directory path for uploads.
-     - `TIMEZONE`: Set to your preferred timezone.
-     - `TOTAL_UPLOAD_SIZE`: Ensure it matches PHP’s `upload_max_filesize` and `post_max_size` settings in your `php.ini`.
+  This will start FileRise on port 8080. Visit `http://your-server-ip:8080` to access it. Environment variables shown above are optional – for instance, set `SECURE="true"` to enforce HTTPS (assuming you have SSL at proxy level) and adjust `TIMEZONE` as needed. The volume mounts ensure your files and user data persist outside the container.
 
-### Initial Setup Instructions
+- **Using Docker Compose:**
+Alternatively, use **docker-compose**. Save the snippet below as docker-compose.yml and run `docker-compose up -d`:
 
-- **First Launch Admin Setup:**  
-  On first launch, if no users exist, the application will enter a setup mode. You will be prompted to create an admin user. This is handled automatically by the application (e.g., via a “Create Admin” form).  
-  **Note:** No default credentials are provided. You must create the first admin account to log in and manage additional users.
+``` yaml
+version: '3'
+services:
+  filerise:
+    image: error311/filerise-docker:latest
+    ports:
+      - "8080:80"
+    environment:
+      TIMEZONE: "UTC"
+      TOTAL_UPLOAD_SIZE: "10G"
+      SECURE: "false"
+      PERSISTENT_TOKENS_KEY: "please_change_this_@@"
+    volumes:
+      - ./uploads:/var/www/uploads
+      - ./users:/var/www/users
+      - ./metadata:/var/www/metadata
+```
+
+FileRise will be accessible at `http://localhost:8080` (or your server’s IP). The above example also sets a custom `PERSISTENT_TOKENS_KEY` (used to encrypt “remember me” tokens) – be sure to change it to a random string for security.
+
+**First-time Setup:** On first launch, FileRise will detect no users and prompt you to create an **Admin account**. Choose your admin username & password, and you’re in! You can then head to the **User Management** section to add additional users if needed.
+
+### 2. Manual Installation (PHP/Apache)
+
+If you prefer to run FileRise on a traditional web server (LAMP stack or similar):
+
+- **Requirements:** PHP 8.1 or higher, Apache (with mod_php) or another web server configured for PHP. Ensure PHP extensions json, curl, and zip are enabled. No database needed.
+- **Download Files:** Clone this repo or download the [latest release archive](https://github.com/error311/FileRise/releases).
+
+``` bash
+git clone https://github.com/error311/FileRise.git  
+```
+
+Place the files into your web server’s directory (e.g., `/var/www/html/filerise`). It can be in a subfolder (just adjust the `BASE_URL` in config as below).
+
+- **Composer Dependencies:** If you plan to use OIDC (SSO login), install Composer and run `composer install` in the FileRise directory. (This pulls in a couple of PHP libraries like jumbojett/openid-connect for OAuth support.) If you skip this, FileRise will still work, but OIDC login won’t be available.
+
+- **Folder Permissions:** Ensure the server can write to the following directories (create them if they don’t exist):
+
+``` bash
+mkdir -p uploads users metadata
+chown -R www-data:www-data uploads users metadata   # www-data is Apache user; use appropriate user
+chmod -R 775 uploads users metadata
+```
+
+The uploads/ folder is where files go, users/ stores the user credentials file, and metadata/ holds metadata like tags and share links.
+
+- **Configuration:** Open the `config.php` file in a text editor. You may want to adjust:
+
+  - `BASE_URL` – the URL where you will access FileRise (e.g., `“https://files.mydomain.com/”`). This is used for generating share links.
+  
+  - `TIMEZONE` and `DATE_TIME_FORMAT` – match your locale (for correct timestamps).
+  
+  - `TOTAL_UPLOAD_SIZE` – max aggregate upload size (default 5G). Also adjust PHP’s `upload_max_filesize` and `post_max_size` to at least this value (the Docker start script auto-adjusts PHP limits).
+  
+  - `PERSISTENT_TOKENS_KEY` – set a unique secret if you use “Remember Me” logins, to encrypt the tokens.
+  
+  - Other settings like `UPLOAD_DIR`, `USERS_FILE` etc. generally don’t need changes unless you move those folders. Defaults are set for the directories mentioned above.
+
+- **Web Server Config:** If using Apache, ensure `.htaccess` files are allowed or manually add the rules from `.htaccess` to your Apache config – these disable directory listings and prevent access to certain files. For Nginx or others, you’ll need to replicate those protections (see Wiki: [Nginx Setup for examples](https://github.com/error311/FileRise/wiki/Nginx-Setup)). Also enable mod_rewrite if not already, as FileRise may use pretty URLs for share links.
+
+Now navigate to the FileRise URL in your browser. On first load, you’ll be prompted to create the Admin user (same as Docker setup). After that, the application is ready to use!
 
 ---
 
-## Docker Usage
+## FAQ / Troubleshooting
 
-For users who prefer containerization, a Docker image is available
+- **“Upload failed” or large files not uploading:** Make sure `TOTAL_UPLOAD_SIZE` in config and PHP’s `post_max_size` / `upload_max_filesize` are all set high enough. For extremely large files, you might also need to increase max_execution_time in PHP or rely on the resumable upload feature in smaller chunks.
 
-### Quickstart
+- **How to enable HTTPS?** FileRise itself doesn’t handle TLS. Run it behind a reverse proxy like Nginx, Caddy, or Apache with SSL, or use Docker with a companion like nginx-proxy or Caddy. Set `SECURE="true"` env var in Docker so FileRise knows to generate https links.
 
-1. **Pull the Docker Image:**
+- **Changing Admin or resetting password:** Admin can change any user’s password via the UI (User Management section). If you lose admin access, you can edit the `users/users.txt` file on the server – passwords are hashed (bcrypt), but you can delete the admin line and then restart the app to trigger the setup flow again.
 
-   ```bash
-   docker pull error311/multi-file-upload-editor-docker:latest
-   ```
+- **Where are my files stored?** In the `uploads/` directory (or the path you set for `UPLOAD_DIR`). Within it, files are organized in the folder structure you see in the app. Deleted files move to `uploads/trash/`. Tag information is in `metadata/file_metadata`.json and trash metadata in `metadata/trash.json`, etc. Regular backups of these folders is recommended if the data is important.
 
-2. **Run the Container:**
+- **Updating FileRise:** If using Docker, pull the new image and recreate the container. For manual installs, download the latest release and replace the files (preserve your `config.php` and the uploads/users/metadata folders). Clear your browser cache if you have issues after an update (in case CSS/JS changed).
 
-   ```bash
-   docker run -d \
-   -p 80:80 \
-   -e TIMEZONE="America/New_York" \
-   -e TOTAL_UPLOAD_SIZE="5G" \
-   -e SECURE="false" \
-   -v /path/to/your/uploads:/var/www/uploads \
-   -v /path/to/your/users:/var/www/users \
-   -v /path/to/your/metadata:/var/www/metadata \
-   --name multi-file-upload-editor \
-   error311/multi-file-upload-editor-docker:latest
-   ```
-
-3. **Using Docker Compose:**
-
-   Create a docker-compose.yml file with the following content:
-
-   ```yaml
-   version: "3.8"
-   services:
-   web:
-     image: error311/multi-file-upload-editor-docker:latest
-     ports:
-       - "80:80"
-     environment:
-       TIMEZONE: "America/New_York"
-       TOTAL_UPLOAD_SIZE: "5G"
-       SECURE: "false"
-     volumes:
-       - /path/to/your/uploads:/var/www/uploads
-       - /path/to/your/users:/var/www/users
-       - /path/to/your/metadata:/var/www/metadata
-   ```
-
-**Then start the container with:**
-
-   ```bash
-   docker-compose up -d
-   ```
+For more Q&A or to ask for help, please check the Discussions or open an issue.
 
 ---
 
-## Configuration Guidance
+## Contributing
 
-The `config.php` file contains several key constants that may need adjustment for your deployment:
+Contributions are welcome! If you have ideas for new features or have found a bug, feel free to open an issue. Check out the [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines. You can also join the conversation in GitHub Discussions or on Reddit (see links below) to share feedback and suggestions.
 
-- **BASE_URL:**  
-  Set to the URL where your application is hosted (e.g., `http://yourdomain.com/uploads/`).
-
-- **UPLOAD_DIR, USERS_DIR, META_DIR:**  
-  Define the directories for uploads, user data, and metadata. Adjust these to match your server environment or Docker volume mounts.
-
-- **TIMEZONE & DATE_TIME_FORMAT:**  
-  Set according to your regional settings.
-
-- **TOTAL_UPLOAD_SIZE:**  
-  Defines the maximum upload size (default is `5G`). Ensure that PHP’s `upload_max_filesize` and `post_max_size` in your `php.ini` are consistent with this setting. The startup script (`start.sh`) updates PHP limits at runtime based on this value.
-
-- **Environment Variables (Docker):**  
-  The Docker image supports overriding configuration via environment variables. For example, you can set `SECURE`, `SHARE_URL`, and port settings via the container’s environment.
+Areas where you can help: translations, bug fixes, UI improvements, or building integration with other services. If you like FileRise, giving the project a ⭐ star ⭐ on GitHub is also a much-appreciated contribution!
 
 ---
 
-## Additional Information
+## Community and Support
 
-- **Security:**  
-  All state-changing endpoints use CSRF token validation. Ensure that sessions and tokens are correctly configured as per your deployment environment.
+- **Reddit:** [r/selfhosted: FileRise Discussion](https://www.reddit.com/r/selfhosted/comments/1jl01pi/introducing_filerise_a_modern_selfhosted_file/) – (Announcement and user feedback thread).
+- **Unraid Forums:** [FileRise Support Thread](https://forums.unraid.net/topic/187337-support-filerise/) – for Unraid-specific support or issues.
+- **GitHub Discussions:** Use the Q&A category for any setup questions, and the Ideas category to suggest enhancements.
 
-- **Permissions:**  
-  Both manual and Docker installations include steps to ensure that file and directory permissions are set correctly for the web server to read and write as needed.
+---
 
-- **Logging & Troubleshooting:**  
-  Check Apache logs (located in `/var/log/apache2/`) for troubleshooting any issues during deployment or operation.
+## License
 
-Enjoy using the Multi File Upload Editor! For any issues or contributions, please refer to the [GitHub repository](https://github.com/error311/multi-file-upload-editor).
+This project is open-source under the MIT License. That means you’re free to use, modify, and distribute **FileRise**, with attribution. We hope you find it useful and contribute back!

SECURITY.md

@@ -0,0 +1,33 @@
+# Security Policy
+
+## Supported Versions
+
+FileRise is actively maintained. Only supported versions will receive security updates. For details on which versions are currently supported, please see the [Release Notes](https://github.com/error311/FileRise/releases).
+
+## Reporting a Vulnerability
+
+If you discover a security vulnerability, please do not open a public issue. Instead, follow these steps:
+
+1. **Email Us Privately:**  
+   Send an email to [security@filerise.net](mailto:security@filerise.net) with the subject line “[FileRise] Security Vulnerability Report”.
+
+2. **Include Details:**  
+   Provide a detailed description of the vulnerability, steps to reproduce it, and any other relevant information (e.g., affected versions, screenshots, logs).
+
+3. **Secure Communication (Optional):**  
+   If you wish to discuss the vulnerability securely, you can use our PGP key. You can obtain our PGP key by emailing us, and we will send it upon request.
+
+## Disclosure Policy
+
+- **Acknowledgement:**  
+  We will acknowledge receipt of your report within 48 hours.
+  
+- **Resolution Timeline:**  
+  We aim to fix confirmed vulnerabilities within 30 days. In cases where a delay is necessary, we will communicate updates to you directly.
+
+- **Public Disclosure:**  
+  After a fix is available, details of the vulnerability will be disclosed publicly in a way that does not compromise user security.
+
+## Additional Information
+
+We appreciate responsible disclosure of vulnerabilities and thank all researchers who help keep FileRise secure. For any questions related to this policy, please contact us at [admin@filerise.net](mailto:admin@filerise.net).

addUser.php

@@ -1,14 +1,14 @@
 <?php
-require 'config.php';
+require_once 'config.php';
 header('Content-Type: application/json');
 
 $usersFile = USERS_DIR . USERS_FILE;
 
 // Determine if we are in setup mode:
 // - Query parameter setup=1 is passed
-// - And users.txt is either missing or empty
-$isSetup = (isset($_GET['setup']) && $_GET['setup'] == '1');
-if ($isSetup && (!file_exists($usersFile) || trim(file_get_contents($usersFile)) === '')) {
+// - And users.txt is either missing or empty (zero bytes or trimmed content is empty)
+$isSetup = (isset($_GET['setup']) && $_GET['setup'] === '1');
+if ($isSetup && (!file_exists($usersFile) || filesize($usersFile) == 0 || trim(file_get_contents($usersFile)) === '')) {
     // Allow initial admin creation without session checks.
     $setupMode = true;
 } else {
@@ -16,7 +16,7 @@ if ($isSetup && (!file_exists($usersFile) || trim(file_get_contents($usersFile))
     // In non-setup mode, check CSRF token and require admin privileges.
     $headers = array_change_key_case(getallheaders(), CASE_LOWER);
     $receivedToken = isset($headers['x-csrf-token']) ? trim($headers['x-csrf-token']) : '';
-    if ($receivedToken !== $_SESSION['csrf_token']) {
+    if (!isset($_SESSION['csrf_token']) || $receivedToken !== $_SESSION['csrf_token']) {
         echo json_encode(["error" => "Invalid CSRF token"]);
         http_response_code(403);
         exit;
@@ -30,7 +30,7 @@ if ($isSetup && (!file_exists($usersFile) || trim(file_get_contents($usersFile))
     }
 }
 
-// Get input data from JSON
+// Get input data from JSON.
 $data = json_decode(file_get_contents("php://input"), true);
 $newUsername = trim($data["username"] ?? "");
 $newPassword = trim($data["password"] ?? "");
@@ -42,7 +42,7 @@ if ($setupMode) {
     $isAdmin = !empty($data["isAdmin"]) ? "1" : "0"; // "1" for admin, "0" for regular user.
 }
 
-// Validate input
+// Validate input.
 if (!$newUsername || !$newPassword) {
     echo json_encode(["error" => "Username and password required"]);
     exit;
@@ -54,12 +54,12 @@ if (!preg_match('/^[A-Za-z0-9_\- ]+$/', $newUsername)) {
     exit;
 }
 
-// Ensure users.txt exists
+// Ensure users.txt exists.
 if (!file_exists($usersFile)) {
     file_put_contents($usersFile, '');
 }
 
-// Check if username already exists
+// Check if username already exists.
 $existingUsers = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
 foreach ($existingUsers as $line) {
     list($storedUser, $storedHash, $storedRole) = explode(':', trim($line));
@@ -69,10 +69,10 @@ foreach ($existingUsers as $line) {
     }
 }
 
-// Hash the password
+// Hash the password.
 $hashedPassword = password_hash($newPassword, PASSWORD_BCRYPT);
 
-// Prepare new user line
+// Prepare new user line.
 $newUserLine = $newUsername . ":" . $hashedPassword . ":" . $isAdmin . PHP_EOL;
 
 // In setup mode, overwrite users.txt; otherwise, append to it.

auth.js

@@ -1,283 +0,0 @@
-import { sendRequest } from './networkUtils.js';
-import { toggleVisibility, showToast } from './domUtils.js';
-import { loadFileList, renderFileTable, displayFilePreview, initFileActions } from './fileManager.js';
-import { loadFolderTree } from './folderManager.js';
-
-function initAuth() {
-  // First, check if the user is already authenticated.
-  checkAuthentication(false).then(data => {
-    if (data.setup) {
-      window.setupMode = true;
-      showToast("Setup mode: No users found. Please add an admin user.");
-      toggleVisibility("loginForm", false);
-      toggleVisibility("mainOperations", false);
-      document.querySelector(".header-buttons").style.visibility = "hidden";
-      toggleVisibility("addUserModal", true);
-      return;
-    }
-    window.setupMode = false;
-    if (data.authenticated) {
-      // User is logged in—show the main UI.
-      toggleVisibility("loginForm", false);
-      toggleVisibility("mainOperations", true);
-      toggleVisibility("uploadFileForm", true);
-      toggleVisibility("fileListContainer", true);
-      document.querySelector(".header-buttons").style.visibility = "visible";
-      // If admin, show admin-only buttons.
-      if (data.isAdmin) {
-        const addUserBtn = document.getElementById("addUserBtn");
-        const removeUserBtn = document.getElementById("removeUserBtn");
-        if (addUserBtn) addUserBtn.style.display = "block";
-        if (removeUserBtn) removeUserBtn.style.display = "block";
-        // Create and show the restore button.
-        let restoreBtn = document.getElementById("restoreFilesBtn");
-        if (!restoreBtn) {
-          restoreBtn = document.createElement("button");
-          restoreBtn.id = "restoreFilesBtn";
-          restoreBtn.classList.add("btn", "btn-warning");
-          // Use a material icon.
-          restoreBtn.innerHTML = '<i class="material-icons" title="Restore/Delete Trash">restore_from_trash</i>';
-
-          const headerButtons = document.querySelector(".header-buttons");
-          if (headerButtons) {
-            // Insert after the third child if available.
-            if (headerButtons.children.length >= 4) {
-              headerButtons.insertBefore(restoreBtn, headerButtons.children[4]);
-            } else {
-              headerButtons.appendChild(restoreBtn);
-            }
-          }
-        }
-        restoreBtn.style.display = "block";
-      } else {
-        const addUserBtn = document.getElementById("addUserBtn");
-        const removeUserBtn = document.getElementById("removeUserBtn");
-        if (addUserBtn) addUserBtn.style.display = "none";
-        if (removeUserBtn) removeUserBtn.style.display = "none";
-        // If not admin, hide the restore button.
-        const restoreBtn = document.getElementById("restoreFilesBtn");
-        if (restoreBtn) {
-          restoreBtn.style.display = "none";
-        }
-      }
-      // Set items-per-page.
-      const selectElem = document.querySelector(".form-control.bottom-select");
-      if (selectElem) {
-        const stored = localStorage.getItem("itemsPerPage") || "10";
-        selectElem.value = stored;
-      }
-    } else {
-      // Do not show a toast message repeatedly during initial check.
-      toggleVisibility("loginForm", true);
-      toggleVisibility("mainOperations", false);
-      toggleVisibility("uploadFileForm", false);
-      toggleVisibility("fileListContainer", false);
-      document.querySelector(".header-buttons").style.visibility = "hidden";
-    }
-  }).catch(error => {
-    console.error("Error checking authentication:", error);
-  });
-
-  // Attach login event listener once.
-  const authForm = document.getElementById("authForm");
-  if (authForm) {
-    authForm.addEventListener("submit", function (event) {
-      event.preventDefault();
-      const formData = {
-        username: document.getElementById("loginUsername").value.trim(),
-        password: document.getElementById("loginPassword").value.trim()
-      };
-      sendRequest("auth.php", "POST", formData, { "X-CSRF-Token": window.csrfToken })
-        .then(data => {
-          if (data.success) {
-            console.log("✅ Login successful. Reloading page.");
-            sessionStorage.setItem("welcomeMessage", "Welcome back, " + formData.username + "!");
-            window.location.reload();
-          } else {
-            showToast("Login failed: " + (data.error || "Unknown error"));
-          }
-        })
-        .catch(error => console.error("❌ Error logging in:", error));
-    });
-  }
-
-  // Attach logout event listener.
-  document.getElementById("logoutBtn").addEventListener("click", function () {
-    fetch("logout.php", {
-      method: "POST",
-      credentials: "include",
-      headers: { "X-CSRF-Token": window.csrfToken }
-    })
-      .then(() => window.location.reload(true))
-      .catch(error => console.error("Logout error:", error));
-  });
-
-  // Add User functionality.
-  document.getElementById("addUserBtn").addEventListener("click", function () {
-    resetUserForm();
-    toggleVisibility("addUserModal", true);
-  });
-  document.getElementById("saveUserBtn").addEventListener("click", function () {
-    const newUsername = document.getElementById("newUsername").value.trim();
-    const newPassword = document.getElementById("newPassword").value.trim();
-    const isAdmin = document.getElementById("isAdmin").checked;
-    if (!newUsername || !newPassword) {
-      showToast("Username and password are required!");
-      return;
-    }
-    let url = "addUser.php";
-    if (window.setupMode) {
-      url += "?setup=1";
-    }
-    fetch(url, {
-      method: "POST",
-      credentials: "include",
-      headers: {
-        "Content-Type": "application/json",
-        "X-CSRF-Token": window.csrfToken
-      },
-      body: JSON.stringify({ username: newUsername, password: newPassword, isAdmin })
-    })
-      .then(response => response.json())
-      .then(data => {
-        if (data.success) {
-          showToast("User added successfully!");
-          closeAddUserModal();
-          checkAuthentication(false); // Re-check without showing toast
-        } else {
-          showToast("Error: " + (data.error || "Could not add user"));
-        }
-      })
-      .catch(error => console.error("Error adding user:", error));
-  });
-  document.getElementById("cancelUserBtn").addEventListener("click", function () {
-    closeAddUserModal();
-  });
-
-  // Remove User functionality.
-  document.getElementById("removeUserBtn").addEventListener("click", function () {
-    loadUserList();
-    toggleVisibility("removeUserModal", true);
-  });
-  document.getElementById("deleteUserBtn").addEventListener("click", function () {
-    const selectElem = document.getElementById("removeUsernameSelect");
-    const usernameToRemove = selectElem.value;
-    if (!usernameToRemove) {
-      showToast("Please select a user to remove.");
-      return;
-    }
-    if (!confirm("Are you sure you want to delete user " + usernameToRemove + "?")) {
-      return;
-    }
-    fetch("removeUser.php", {
-      method: "POST",
-      credentials: "include",
-      headers: {
-        "Content-Type": "application/json",
-        "X-CSRF-Token": window.csrfToken
-      },
-      body: JSON.stringify({ username: usernameToRemove })
-    })
-      .then(response => response.json())
-      .then(data => {
-        if (data.success) {
-          showToast("User removed successfully!");
-          closeRemoveUserModal();
-          loadUserList();
-        } else {
-          showToast("Error: " + (data.error || "Could not remove user"));
-        }
-      })
-      .catch(error => console.error("Error removing user:", error));
-  });
-  document.getElementById("cancelRemoveUserBtn").addEventListener("click", function () {
-    closeRemoveUserModal();
-  });
-}
-
-function checkAuthentication(showLoginToast = true) {
-  // Optionally pass a flag so we don't show a toast every time.
-  return sendRequest("checkAuth.php")
-    .then(data => {
-      if (data.setup) {
-        window.setupMode = true;
-        if (showLoginToast) showToast("Setup mode: No users found. Please add an admin user.");
-        toggleVisibility("loginForm", false);
-        toggleVisibility("mainOperations", false);
-        document.querySelector(".header-buttons").style.visibility = "hidden";
-        toggleVisibility("addUserModal", true);
-        return false;
-      }
-      window.setupMode = false;
-      if (data.authenticated) {
-        return data;
-      } else {
-        if (showLoginToast) showToast("Please log in to continue.");
-        toggleVisibility("loginForm", true);
-        toggleVisibility("mainOperations", false);
-        toggleVisibility("uploadFileForm", false);
-        toggleVisibility("fileListContainer", false);
-        document.querySelector(".header-buttons").style.visibility = "hidden";
-        return false;
-      }
-    })
-    .catch(error => {
-      console.error("Error checking authentication:", error);
-      return false;
-    });
-}
-window.checkAuthentication = checkAuthentication;
-
-window.changeItemsPerPage = function (value) {
-  localStorage.setItem("itemsPerPage", value);
-  const folder = window.currentFolder || "root";
-  if (typeof renderFileTable === "function") {
-    renderFileTable(folder);
-  }
-};
-
-document.addEventListener("DOMContentLoaded", function () {
-  const selectElem = document.querySelector(".form-control.bottom-select");
-  if (selectElem) {
-    const stored = localStorage.getItem("itemsPerPage") || "10";
-    selectElem.value = stored;
-  }
-});
-
-function resetUserForm() {
-  document.getElementById("newUsername").value = "";
-  document.getElementById("newPassword").value = "";
-}
-
-function closeAddUserModal() {
-  toggleVisibility("addUserModal", false);
-  resetUserForm();
-}
-
-function closeRemoveUserModal() {
-  toggleVisibility("removeUserModal", false);
-  document.getElementById("removeUsernameSelect").innerHTML = "";
-}
-
-function loadUserList() {
-  fetch("getUsers.php", { credentials: "include" })
-    .then(response => response.json())
-    .then(data => {
-      const users = Array.isArray(data) ? data : (data.users || []);
-      const selectElem = document.getElementById("removeUsernameSelect");
-      selectElem.innerHTML = "";
-      users.forEach(user => {
-        const option = document.createElement("option");
-        option.value = user.username;
-        option.textContent = user.username;
-        selectElem.appendChild(option);
-      });
-      if (selectElem.options.length === 0) {
-        showToast("No other users found to remove.");
-        closeRemoveUserModal();
-      }
-    })
-    .catch(error => console.error("Error loading user list:", error));
-}
-
-export { initAuth, checkAuthentication };

auth.php

@@ -1,55 +1,262 @@
 <?php
-require 'config.php';
+require_once 'vendor/autoload.php';
+require_once 'config.php';
+
+// Only send the Content-Type header; CORS and related headers are handled via .htaccess.
 header('Content-Type: application/json');
 
+// Global exception handler: logs errors and returns a generic error message.
+set_exception_handler(function ($e) {
+    error_log("Unhandled exception: " . $e->getMessage());
+    http_response_code(500);
+    echo json_encode(["error" => "Internal Server Error"]);
+    exit();
+});
+
+/**
+ * Helper: Get the user's role from users.txt.
+ */
+function getUserRole($username) {
+    $usersFile = USERS_DIR . USERS_FILE;
+    if (file_exists($usersFile)) {
+        foreach (file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) as $line) {
+            $parts = explode(":", trim($line));
+            if (count($parts) >= 3 && $parts[0] === $username) {
+                return trim($parts[2]);
+            }
+        }
+    }
+    return null;
+}
+
+/* --- OIDC Authentication Flow --- */
+// Detect either ?oidc=… or a callback that only has ?code=
+$oidcAction = $_GET['oidc'] ?? null;
+if (!$oidcAction && isset($_GET['code'])) {
+    $oidcAction = 'callback';
+}
+if ($oidcAction) {
+    $adminConfigFile = USERS_DIR . 'adminConfig.json';
+    if (file_exists($adminConfigFile)) {
+        $enc = file_get_contents($adminConfigFile);
+        $dec = decryptData($enc, $encryptionKey);
+        $cfg = $dec !== false ? json_decode($dec, true) : [];
+    } else {
+        $cfg = [];
+    }
+    $oidc_provider_url  = $cfg['oidc']['providerUrl']  ?? 'https://your-oidc-provider.com';
+    $oidc_client_id     = $cfg['oidc']['clientId']     ?? 'YOUR_CLIENT_ID';
+    $oidc_client_secret = $cfg['oidc']['clientSecret'] ?? 'YOUR_CLIENT_SECRET';
+    // Use your production domain for redirect URI.
+    $oidc_redirect_uri  = $cfg['oidc']['redirectUri']  ?? 'https://yourdomain.com/auth.php?oidc=callback';
+
+    $oidc = new Jumbojett\OpenIDConnectClient(
+        $oidc_provider_url,
+        $oidc_client_id,
+        $oidc_client_secret
+    );
+    $oidc->setRedirectURL($oidc_redirect_uri);
+
+    if ($oidcAction === 'callback') {
+        try {
+            $oidc->authenticate();
+            $username = $oidc->requestUserInfo('preferred_username');
+
+            // Check if this user has a TOTP secret.
+            $usersFile = USERS_DIR . USERS_FILE;
+            $totp_secret = null;
+            if (file_exists($usersFile)) {
+                foreach (file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) as $line) {
+                    $parts = explode(":", trim($line));
+                    if (count($parts) >= 4 && $parts[0] === $username && !empty($parts[3])) {
+                        $totp_secret = decryptData($parts[3], $encryptionKey);
+                        break;
+                    }
+                }
+            }
+            if ($totp_secret) {
+                // Hold pending login & prompt for TOTP.
+                $_SESSION['pending_login_user']   = $username;
+                $_SESSION['pending_login_secret'] = $totp_secret;
+                header("Location: index.html?totp_required=1");
+                exit();
+            }
+
+            // No TOTP → finalize login.
+            session_regenerate_id(true);
+            $_SESSION["authenticated"] = true;
+            $_SESSION["username"]      = $username;
+            $_SESSION["isAdmin"]       = (getUserRole($username) === "1");
+            $_SESSION["folderOnly"]    = loadUserPermissions($username);
+
+            header("Location: index.html");
+            exit();
+        } catch (Exception $e) {
+            error_log("OIDC authentication error: " . $e->getMessage());
+            http_response_code(401);
+            echo json_encode(["error" => "Authentication failed."]);
+            exit();
+        }
+    } else {
+        // Initiate OIDC authentication.
+        try {
+            $oidc->authenticate();
+            exit();
+        } catch (Exception $e) {
+            error_log("OIDC initiation error: " . $e->getMessage());
+            http_response_code(401);
+            echo json_encode(["error" => "Authentication initiation failed."]);
+            exit();
+        }
+    }
+}
+
+/* --- Fallback: Form-based Authentication --- */
 $usersFile = USERS_DIR . USERS_FILE;
+$maxAttempts = 5;
+$lockoutTime = 30 * 60; // 30 minutes
+$attemptsFile = USERS_DIR . 'failed_logins.json';
+$failedLogFile = USERS_DIR . 'failed_login.log';
+$persistentTokensFile = USERS_DIR . 'persistent_tokens.json';
 
-// Function to authenticate user
-function authenticate($username, $password)
-{
-    global $usersFile;
+function loadFailedAttempts($file) {
+    if (file_exists($file)) {
+        $data = json_decode(file_get_contents($file), true);
+        if (is_array($data)) {
+            return $data;
+        }
+    }
+    return [];
+}
 
+function saveFailedAttempts($file, $data) {
+    file_put_contents($file, json_encode($data, JSON_PRETTY_PRINT), LOCK_EX);
+}
+
+$ip = $_SERVER['REMOTE_ADDR'];
+$currentTime = time();
+$failedAttempts = loadFailedAttempts($attemptsFile);
+
+if (isset($failedAttempts[$ip])) {
+    $attemptData = $failedAttempts[$ip];
+    if ($attemptData['count'] >= $maxAttempts && ($currentTime - $attemptData['last_attempt']) < $lockoutTime) {
+        http_response_code(429);
+        echo json_encode(["error" => "Too many failed login attempts. Please try again later."]);
+        exit();
+    }
+}
+
+function authenticate($username, $password) {
+    global $usersFile, $encryptionKey;
     if (!file_exists($usersFile)) {
         return false;
     }
-
     $lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
     foreach ($lines as $line) {
-        list($storedUser, $storedPass, $storedRole) = explode(':', trim($line), 3);
-        if ($username === $storedUser && password_verify($password, $storedPass)) {
-            return $storedRole; // Return the user's role
+        $parts = explode(':', trim($line));
+        if (count($parts) < 3) continue;
+        if ($username === $parts[0] && password_verify($password, $parts[1])) {
+            $result = ['role' => $parts[2]];
+            $result['totp_secret'] = (isset($parts[3]) && !empty($parts[3]))
+                ? decryptData($parts[3], $encryptionKey)
+                : null;
+            return $result;
         }
     }
     return false;
 }
 
-// Get JSON input
 $data = json_decode(file_get_contents("php://input"), true);
 $username = trim($data["username"] ?? "");
 $password = trim($data["password"] ?? "");
+$rememberMe = isset($data["remember_me"]) && $data["remember_me"] === true;
 
-// Validate input: ensure both fields are provided.
 if (!$username || !$password) {
+    http_response_code(400);
     echo json_encode(["error" => "Username and password are required"]);
-    exit;
+    exit();
 }
 
-// Validate username format: allow only letters, numbers, underscores, dashes, and spaces.
 if (!preg_match('/^[A-Za-z0-9_\- ]+$/', $username)) {
+    http_response_code(400);
     echo json_encode(["error" => "Invalid username format. Only letters, numbers, underscores, dashes, and spaces are allowed."]);
-    exit;
+    exit();
 }
 
-// Authenticate user
-$userRole = authenticate($username, $password);
-if ($userRole !== false) {
-    // Regenerate session ID to mitigate session fixation attacks
+$user = authenticate($username, $password);
+if ($user !== false) {
+    if (!empty($user['totp_secret'])) {
+                // If TOTP code is missing or malformed, indicate that TOTP is required.
+                if (empty($data['totp_code']) || !preg_match('/^\d{6}$/', $data['totp_code'])) {
+                   // ← STORE pending user & secret so recovery can see it
+                    $_SESSION['pending_login_user']   = $username;
+                    $_SESSION['pending_login_secret'] = $user['totp_secret'];
+                    echo json_encode([
+                      "totp_required" => true,
+                      "message"      => "TOTP code required"
+                    ]);
+                    exit();
+                } else {
+            $tfa = new \RobThree\Auth\TwoFactorAuth('FileRise');
+            $providedCode = trim($data['totp_code']);
+            if (!$tfa->verifyCode($user['totp_secret'], $providedCode)) {
+                echo json_encode(["error" => "Invalid TOTP code"]);
+                exit();
+            }
+        }
+    }
+    if (isset($failedAttempts[$ip])) {
+        unset($failedAttempts[$ip]);
+        saveFailedAttempts($attemptsFile, $failedAttempts);
+    }
     session_regenerate_id(true);
     $_SESSION["authenticated"] = true;
     $_SESSION["username"] = $username;
-    $_SESSION["isAdmin"] = ($userRole === "1"); // "1" indicates admin
-
-    echo json_encode(["success" => "Login successful", "isAdmin" => $_SESSION["isAdmin"]]);
+    $_SESSION["isAdmin"] = ($user['role'] === "1");
+    $_SESSION["folderOnly"] = loadUserPermissions($username);
+    
+    if ($rememberMe) {
+        $token = bin2hex(random_bytes(32));
+        $expiry = time() + (30 * 24 * 60 * 60);
+        $persistentTokens = [];
+        if (file_exists($persistentTokensFile)) {
+            $encryptedContent = file_get_contents($persistentTokensFile);
+            $decryptedContent = decryptData($encryptedContent, $encryptionKey);
+            $persistentTokens = json_decode($decryptedContent, true);
+            if (!is_array($persistentTokens)) {
+                $persistentTokens = [];
+            }
+        }
+        $persistentTokens[$token] = [
+            "username" => $username,
+            "expiry"   => $expiry,
+            "isAdmin"  => ($_SESSION["isAdmin"] === true)
+        ];
+        $encryptedContent = encryptData(json_encode($persistentTokens, JSON_PRETTY_PRINT), $encryptionKey);
+        file_put_contents($persistentTokensFile, $encryptedContent, LOCK_EX);
+        // Define $secure based on whether HTTPS is enabled
+        $secure = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off');
+        setcookie('remember_me_token', $token, $expiry, '/', '', $secure, true);
+    }
+    
+    echo json_encode([
+      "status" => "ok",
+      "success"   => "Login successful", 
+      "isAdmin"   => $_SESSION["isAdmin"],
+      "folderOnly"=> $_SESSION["folderOnly"],
+      "username"  => $_SESSION["username"]
+    ]);
 } else {
+    if (isset($failedAttempts[$ip])) {
+        $failedAttempts[$ip]['count']++;
+        $failedAttempts[$ip]['last_attempt'] = $currentTime;
+    } else {
+        $failedAttempts[$ip] = ['count' => 1, 'last_attempt' => $currentTime];
+    }
+    saveFailedAttempts($attemptsFile, $failedAttempts);
+    $logLine = date('Y-m-d H:i:s') . " - Failed login attempt for username: " . $username . " from IP: " . $ip . PHP_EOL;
+    file_put_contents($failedLogFile, $logLine, FILE_APPEND);
+    http_response_code(401);
     echo json_encode(["error" => "Invalid credentials"]);
 }
+?>

changePassword.php

@@ -0,0 +1,99 @@
+<?php
+// changePassword.php
+require_once 'config.php';
+header('Content-Type: application/json');
+
+if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
+    echo json_encode(["error" => "Unauthorized"]);
+    exit;
+}
+
+$username = $_SESSION['username'] ?? '';
+if (!$username) {
+    echo json_encode(["error" => "No username in session"]);
+    exit;
+}
+
+// CSRF token check.
+$headers = array_change_key_case(getallheaders(), CASE_LOWER);
+$receivedToken = isset($headers['x-csrf-token']) ? trim($headers['x-csrf-token']) : '';
+if ($receivedToken !== $_SESSION['csrf_token']) {
+    echo json_encode(["error" => "Invalid CSRF token"]);
+    http_response_code(403);
+    exit;
+}
+
+// Get POST data.
+$data = json_decode(file_get_contents("php://input"), true);
+$oldPassword = trim($data["oldPassword"] ?? "");
+$newPassword = trim($data["newPassword"] ?? "");
+$confirmPassword = trim($data["confirmPassword"] ?? "");
+
+// Validate input.
+if (!$oldPassword || !$newPassword || !$confirmPassword) {
+    echo json_encode(["error" => "All fields are required."]);
+    exit;
+}
+if ($newPassword !== $confirmPassword) {
+    echo json_encode(["error" => "New passwords do not match."]);
+    exit;
+}
+
+// Path to users file.
+$usersFile = USERS_DIR . USERS_FILE;
+if (!file_exists($usersFile)) {
+    echo json_encode(["error" => "Users file not found"]);
+    exit;
+}
+
+// Read current users.
+$lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+$userFound = false;
+$newLines = [];
+
+foreach ($lines as $line) {
+    $parts = explode(':', trim($line));
+    // Expect at least 3 parts: username, hashed password, and role.
+    if (count($parts) < 3) {
+        // Skip invalid lines.
+        $newLines[] = $line;
+        continue;
+    }
+    $storedUser = $parts[0];
+    $storedHash = $parts[1];
+    $storedRole = $parts[2];
+    // Preserve TOTP secret if it exists.
+    $totpSecret = (count($parts) >= 4) ? $parts[3] : "";
+    
+    if ($storedUser === $username) {
+        $userFound = true;
+        // Verify the old password.
+        if (!password_verify($oldPassword, $storedHash)) {
+            echo json_encode(["error" => "Old password is incorrect."]);
+            exit;
+        }
+        // Hash the new password.
+        $newHashedPassword = password_hash($newPassword, PASSWORD_BCRYPT);
+        // Rebuild the line with the new hash and preserve TOTP secret if present.
+        if ($totpSecret !== "") {
+            $newLines[] = $username . ":" . $newHashedPassword . ":" . $storedRole . ":" . $totpSecret;
+        } else {
+            $newLines[] = $username . ":" . $newHashedPassword . ":" . $storedRole;
+        }
+    } else {
+        $newLines[] = $line;
+    }
+}
+
+if (!$userFound) {
+    echo json_encode(["error" => "User not found."]);
+    exit;
+}
+
+// Save updated users file.
+if (file_put_contents($usersFile, implode(PHP_EOL, $newLines) . PHP_EOL)) {
+    echo json_encode(["success" => "Password updated successfully."]);
+} else {
+    echo json_encode(["error" => "Could not update password."]);
+}
+?>

checkAuth.php

@@ -1,22 +1,70 @@
 <?php
-require 'config.php';
+require_once 'config.php';
 header('Content-Type: application/json');
 
-// Check if users.txt is empty or doesn't exist
+// Check if users.txt is empty or doesn't exist.
 $usersFile = USERS_DIR . USERS_FILE;
 if (!file_exists($usersFile) || trim(file_get_contents($usersFile)) === '') {
-    // Return JSON indicating setup mode
+    // In production, you might log that the system is in setup mode.
+    error_log("checkAuth: users file not found or empty; entering setup mode.");
     echo json_encode(["setup" => true]);
     exit();
 }
 
+// Check session authentication.
 if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
     echo json_encode(["authenticated" => false]);
-    exit;
+    exit();
 }
 
-echo json_encode([
+/**
+ * Helper function to get a user's role from users.txt.
+ * Returns the role as a string (e.g. "1") or null if not found.
+ */
+function getUserRole($username) {
+    global $usersFile;
+    if (file_exists($usersFile)) {
+        $lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+        foreach ($lines as $line) {
+            $parts = explode(":", trim($line));
+            if (count($parts) >= 3 && $parts[0] === $username) {
+                return trim($parts[2]);
+            }
+        }
+    }
+    return null;
+}
+
+// Determine if TOTP is enabled by checking users.txt.
+$totp_enabled = false;
+$username = $_SESSION['username'] ?? '';
+if ($username) {
+    $lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    foreach ($lines as $line) {
+        $parts = explode(":", trim($line));
+        // Assuming first field is username and fourth (if exists) is the TOTP secret.
+        if ($parts[0] === $username) {
+            if (isset($parts[3]) && trim($parts[3]) !== "") {
+                $totp_enabled = true;
+            }
+            break;
+        }
+    }
+}
+
+// Use getUserRole() to determine admin status.
+// We cast the role to an integer so that "1" (string) is treated as true.
+$userRole = getUserRole($username);
+$isAdmin = ((int)$userRole === 1);
+
+// Build and return the JSON response.
+$response = [
     "authenticated" => true,
-    "isAdmin" => isset($_SESSION["isAdmin"]) ? $_SESSION["isAdmin"] : false
-]);
+    "isAdmin"       => $isAdmin,
+    "totp_enabled"  => $totp_enabled,
+    "username"      => $username,
+    "folderOnly"    => isset($_SESSION["folderOnly"]) ? $_SESSION["folderOnly"] : false
+];
+
+echo json_encode($response);
 ?>

composer.json

@@ -0,0 +1,11 @@
+{
+    "name": "error311/filerise",
+    "description": "FileRise – A lightweight self-hosted file manager",
+    "type": "project",
+    "require": {
+      "jumbojett/openid-connect-php": "^1.0.0",
+      "phpseclib/phpseclib": "~3.0.7",
+      "robthree/twofactorauth": "^1.7",
+      "endroid/qr-code": "^4.0"
+    }
+  }

composer.lock

@@ -0,0 +1,537 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "c9857f23364f2280ef4b71cdc72d3f78",
+    "packages": [
+        {
+            "name": "bacon/bacon-qr-code",
+            "version": "2.0.8",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/Bacon/BaconQrCode.git",
+                "reference": "8674e51bb65af933a5ffaf1c308a660387c35c22"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/Bacon/BaconQrCode/zipball/8674e51bb65af933a5ffaf1c308a660387c35c22",
+                "reference": "8674e51bb65af933a5ffaf1c308a660387c35c22",
+                "shasum": ""
+            },
+            "require": {
+                "dasprid/enum": "^1.0.3",
+                "ext-iconv": "*",
+                "php": "^7.1 || ^8.0"
+            },
+            "require-dev": {
+                "phly/keep-a-changelog": "^2.1",
+                "phpunit/phpunit": "^7 | ^8 | ^9",
+                "spatie/phpunit-snapshot-assertions": "^4.2.9",
+                "squizlabs/php_codesniffer": "^3.4"
+            },
+            "suggest": {
+                "ext-imagick": "to generate QR code images"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "BaconQrCode\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-2-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Ben Scholzen 'DASPRiD'",
+                    "email": "mail@dasprids.de",
+                    "homepage": "https://dasprids.de/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "BaconQrCode is a QR code generator for PHP.",
+            "homepage": "https://github.com/Bacon/BaconQrCode",
+            "support": {
+                "issues": "https://github.com/Bacon/BaconQrCode/issues",
+                "source": "https://github.com/Bacon/BaconQrCode/tree/2.0.8"
+            },
+            "time": "2022-12-07T17:46:57+00:00"
+        },
+        {
+            "name": "dasprid/enum",
+            "version": "1.0.6",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/DASPRiD/Enum.git",
+                "reference": "8dfd07c6d2cf31c8da90c53b83c026c7696dda90"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/DASPRiD/Enum/zipball/8dfd07c6d2cf31c8da90c53b83c026c7696dda90",
+                "reference": "8dfd07c6d2cf31c8da90c53b83c026c7696dda90",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1 <9.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^7 || ^8 || ^9 || ^10 || ^11",
+                "squizlabs/php_codesniffer": "*"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "DASPRiD\\Enum\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-2-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Ben Scholzen 'DASPRiD'",
+                    "email": "mail@dasprids.de",
+                    "homepage": "https://dasprids.de/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "PHP 7.1 enum implementation",
+            "keywords": [
+                "enum",
+                "map"
+            ],
+            "support": {
+                "issues": "https://github.com/DASPRiD/Enum/issues",
+                "source": "https://github.com/DASPRiD/Enum/tree/1.0.6"
+            },
+            "time": "2024-08-09T14:30:48+00:00"
+        },
+        {
+            "name": "endroid/qr-code",
+            "version": "4.8.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/endroid/qr-code.git",
+                "reference": "0db25b506a8411a5e1644ebaa67123a6eb7b6a77"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/endroid/qr-code/zipball/0db25b506a8411a5e1644ebaa67123a6eb7b6a77",
+                "reference": "0db25b506a8411a5e1644ebaa67123a6eb7b6a77",
+                "shasum": ""
+            },
+            "require": {
+                "bacon/bacon-qr-code": "^2.0.5",
+                "php": "^8.1"
+            },
+            "conflict": {
+                "khanamiryan/qrcode-detector-decoder": "^1.0.6"
+            },
+            "require-dev": {
+                "endroid/quality": "dev-master",
+                "ext-gd": "*",
+                "khanamiryan/qrcode-detector-decoder": "^1.0.4||^2.0.2",
+                "setasign/fpdf": "^1.8.2"
+            },
+            "suggest": {
+                "ext-gd": "Enables you to write PNG images",
+                "khanamiryan/qrcode-detector-decoder": "Enables you to use the image validator",
+                "roave/security-advisories": "Makes sure package versions with known security issues are not installed",
+                "setasign/fpdf": "Enables you to use the PDF writer"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "4.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Endroid\\QrCode\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Jeroen van den Enden",
+                    "email": "info@endroid.nl"
+                }
+            ],
+            "description": "Endroid QR Code",
+            "homepage": "https://github.com/endroid/qr-code",
+            "keywords": [
+                "code",
+                "endroid",
+                "php",
+                "qr",
+                "qrcode"
+            ],
+            "support": {
+                "issues": "https://github.com/endroid/qr-code/issues",
+                "source": "https://github.com/endroid/qr-code/tree/4.8.5"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/endroid",
+                    "type": "github"
+                }
+            ],
+            "time": "2023-09-29T14:03:20+00:00"
+        },
+        {
+            "name": "jumbojett/openid-connect-php",
+            "version": "v1.0.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/jumbojett/OpenID-Connect-PHP.git",
+                "reference": "f327e7eb0626d55ddb6abc7b7c9e6ad3af4e5d51"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/jumbojett/OpenID-Connect-PHP/zipball/f327e7eb0626d55ddb6abc7b7c9e6ad3af4e5d51",
+                "reference": "f327e7eb0626d55ddb6abc7b7c9e6ad3af4e5d51",
+                "shasum": ""
+            },
+            "require": {
+                "ext-curl": "*",
+                "ext-json": "*",
+                "php": ">=7.0",
+                "phpseclib/phpseclib": "^3.0.7"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "<10",
+                "roave/security-advisories": "dev-latest",
+                "yoast/phpunit-polyfills": "^2.0"
+            },
+            "type": "library",
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "Apache-2.0"
+            ],
+            "description": "Bare-bones OpenID Connect client",
+            "support": {
+                "issues": "https://github.com/jumbojett/OpenID-Connect-PHP/issues",
+                "source": "https://github.com/jumbojett/OpenID-Connect-PHP/tree/v1.0.2"
+            },
+            "time": "2024-09-13T07:08:11+00:00"
+        },
+        {
+            "name": "paragonie/constant_time_encoding",
+            "version": "v3.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/paragonie/constant_time_encoding.git",
+                "reference": "df1e7fde177501eee2037dd159cf04f5f301a512"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/paragonie/constant_time_encoding/zipball/df1e7fde177501eee2037dd159cf04f5f301a512",
+                "reference": "df1e7fde177501eee2037dd159cf04f5f301a512",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^8"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^9",
+                "vimeo/psalm": "^4|^5"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "ParagonIE\\ConstantTime\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Paragon Initiative Enterprises",
+                    "email": "security@paragonie.com",
+                    "homepage": "https://paragonie.com",
+                    "role": "Maintainer"
+                },
+                {
+                    "name": "Steve 'Sc00bz' Thomas",
+                    "email": "steve@tobtu.com",
+                    "homepage": "https://www.tobtu.com",
+                    "role": "Original Developer"
+                }
+            ],
+            "description": "Constant-time Implementations of RFC 4648 Encoding (Base-64, Base-32, Base-16)",
+            "keywords": [
+                "base16",
+                "base32",
+                "base32_decode",
+                "base32_encode",
+                "base64",
+                "base64_decode",
+                "base64_encode",
+                "bin2hex",
+                "encoding",
+                "hex",
+                "hex2bin",
+                "rfc4648"
+            ],
+            "support": {
+                "email": "info@paragonie.com",
+                "issues": "https://github.com/paragonie/constant_time_encoding/issues",
+                "source": "https://github.com/paragonie/constant_time_encoding"
+            },
+            "time": "2024-05-08T12:36:18+00:00"
+        },
+        {
+            "name": "paragonie/random_compat",
+            "version": "v9.99.100",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/paragonie/random_compat.git",
+                "reference": "996434e5492cb4c3edcb9168db6fbb1359ef965a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/996434e5492cb4c3edcb9168db6fbb1359ef965a",
+                "reference": "996434e5492cb4c3edcb9168db6fbb1359ef965a",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">= 7"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "4.*|5.*",
+                "vimeo/psalm": "^1"
+            },
+            "suggest": {
+                "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes."
+            },
+            "type": "library",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Paragon Initiative Enterprises",
+                    "email": "security@paragonie.com",
+                    "homepage": "https://paragonie.com"
+                }
+            ],
+            "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
+            "keywords": [
+                "csprng",
+                "polyfill",
+                "pseudorandom",
+                "random"
+            ],
+            "support": {
+                "email": "info@paragonie.com",
+                "issues": "https://github.com/paragonie/random_compat/issues",
+                "source": "https://github.com/paragonie/random_compat"
+            },
+            "time": "2020-10-15T08:29:30+00:00"
+        },
+        {
+            "name": "phpseclib/phpseclib",
+            "version": "3.0.43",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpseclib/phpseclib.git",
+                "reference": "709ec107af3cb2f385b9617be72af8cf62441d02"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpseclib/phpseclib/zipball/709ec107af3cb2f385b9617be72af8cf62441d02",
+                "reference": "709ec107af3cb2f385b9617be72af8cf62441d02",
+                "shasum": ""
+            },
+            "require": {
+                "paragonie/constant_time_encoding": "^1|^2|^3",
+                "paragonie/random_compat": "^1.4|^2.0|^9.99.99",
+                "php": ">=5.6.1"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "*"
+            },
+            "suggest": {
+                "ext-dom": "Install the DOM extension to load XML formatted public keys.",
+                "ext-gmp": "Install the GMP (GNU Multiple Precision) extension in order to speed up arbitrary precision integer arithmetic operations.",
+                "ext-libsodium": "SSH2/SFTP can make use of some algorithms provided by the libsodium-php extension.",
+                "ext-mcrypt": "Install the Mcrypt extension in order to speed up a few other cryptographic operations.",
+                "ext-openssl": "Install the OpenSSL extension in order to speed up a wide variety of cryptographic operations."
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "phpseclib/bootstrap.php"
+                ],
+                "psr-4": {
+                    "phpseclib3\\": "phpseclib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Jim Wigginton",
+                    "email": "terrafrost@php.net",
+                    "role": "Lead Developer"
+                },
+                {
+                    "name": "Patrick Monnerat",
+                    "email": "pm@datasphere.ch",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Andreas Fischer",
+                    "email": "bantu@phpbb.com",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Hans-Jürgen Petrich",
+                    "email": "petrich@tronic-media.com",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Graham Campbell",
+                    "email": "graham@alt-three.com",
+                    "role": "Developer"
+                }
+            ],
+            "description": "PHP Secure Communications Library - Pure-PHP implementations of RSA, AES, SSH2, SFTP, X.509 etc.",
+            "homepage": "http://phpseclib.sourceforge.net",
+            "keywords": [
+                "BigInteger",
+                "aes",
+                "asn.1",
+                "asn1",
+                "blowfish",
+                "crypto",
+                "cryptography",
+                "encryption",
+                "rsa",
+                "security",
+                "sftp",
+                "signature",
+                "signing",
+                "ssh",
+                "twofish",
+                "x.509",
+                "x509"
+            ],
+            "support": {
+                "issues": "https://github.com/phpseclib/phpseclib/issues",
+                "source": "https://github.com/phpseclib/phpseclib/tree/3.0.43"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/terrafrost",
+                    "type": "github"
+                },
+                {
+                    "url": "https://www.patreon.com/phpseclib",
+                    "type": "patreon"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/phpseclib/phpseclib",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-12-14T21:12:59+00:00"
+        },
+        {
+            "name": "robthree/twofactorauth",
+            "version": "1.8.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/RobThree/TwoFactorAuth.git",
+                "reference": "65681de5a324eae05140ac58b08648a60212afc0"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/RobThree/TwoFactorAuth/zipball/65681de5a324eae05140ac58b08648a60212afc0",
+                "reference": "65681de5a324eae05140ac58b08648a60212afc0",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.6.0"
+            },
+            "require-dev": {
+                "php-parallel-lint/php-parallel-lint": "^1.2",
+                "phpunit/phpunit": "@stable"
+            },
+            "suggest": {
+                "bacon/bacon-qr-code": "Needed for BaconQrCodeProvider provider",
+                "endroid/qr-code": "Needed for EndroidQrCodeProvider"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "RobThree\\Auth\\": "lib"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Rob Janssen",
+                    "homepage": "http://robiii.me",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Two Factor Authentication",
+            "homepage": "https://github.com/RobThree/TwoFactorAuth",
+            "keywords": [
+                "Authentication",
+                "MFA",
+                "Multi Factor Authentication",
+                "Two Factor Authentication",
+                "authenticator",
+                "authy",
+                "php",
+                "tfa"
+            ],
+            "support": {
+                "issues": "https://github.com/RobThree/TwoFactorAuth/issues",
+                "source": "https://github.com/RobThree/TwoFactorAuth"
+            },
+            "funding": [
+                {
+                    "url": "https://paypal.me/robiii",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/RobThree",
+                    "type": "github"
+                }
+            ],
+            "time": "2022-03-22T16:11:07+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": {},
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": {},
+    "platform-dev": {},
+    "plugin-api-version": "2.6.0"
+}

config.php

@@ -1,10 +1,86 @@
 <?php
 // config.php
 
-// Allow an environment variable to override HTTPS detection.
+// Define constants.
+define('UPLOAD_DIR', '/var/www/uploads/');
+define('USERS_DIR', '/var/www/users/');
+define('USERS_FILE', 'users.txt');
+define('META_DIR', '/var/www/metadata/');
+define('META_FILE', 'file_metadata.json');
+define('TRASH_DIR', UPLOAD_DIR . 'trash/');
+define('TIMEZONE', 'America/New_York');
+define('DATE_TIME_FORMAT', 'm/d/y  h:iA');
+define('TOTAL_UPLOAD_SIZE', '5G');
+
+date_default_timezone_set(TIMEZONE);
+
+/**
+ * Encrypts data using AES-256-CBC.
+ *
+ * @param string $data The plaintext.
+ * @param string $encryptionKey The encryption key.
+ * @return string Base64-encoded string containing IV and ciphertext.
+ */
+function encryptData($data, $encryptionKey)
+{
+    $cipher = 'AES-256-CBC';
+    $ivlen = openssl_cipher_iv_length($cipher);
+    $iv = openssl_random_pseudo_bytes($ivlen);
+    $ciphertext = openssl_encrypt($data, $cipher, $encryptionKey, OPENSSL_RAW_DATA, $iv);
+    return base64_encode($iv . $ciphertext);
+}
+
+/**
+ * Decrypts data encrypted with AES-256-CBC.
+ *
+ * @param string $encryptedData Base64-encoded data containing IV and ciphertext.
+ * @param string $encryptionKey The encryption key.
+ * @return string|false The decrypted plaintext or false on failure.
+ */
+function decryptData($encryptedData, $encryptionKey)
+{
+    $cipher = 'AES-256-CBC';
+    $data = base64_decode($encryptedData);
+    $ivlen = openssl_cipher_iv_length($cipher);
+    $iv = substr($data, 0, $ivlen);
+    $ciphertext = substr($data, $ivlen);
+    return openssl_decrypt($ciphertext, $cipher, $encryptionKey, OPENSSL_RAW_DATA, $iv);
+}
+
+// Load encryption key from environment (override in production).
+$encryptionKey = getenv('PERSISTENT_TOKENS_KEY') ?: 'default_please_change_this_key';
+if (!$encryptionKey) {
+    die('Encryption key for persistent tokens is not set.');
+}
+
+function loadUserPermissions($username)
+{
+    global $encryptionKey;
+    $permissionsFile = USERS_DIR . 'userPermissions.json';
+
+    if (file_exists($permissionsFile)) {
+        $content = file_get_contents($permissionsFile);
+
+        // Try to decrypt the content.
+        $decryptedContent = decryptData($content, $encryptionKey);
+        if ($decryptedContent !== false) {
+            $permissions = json_decode($decryptedContent, true);
+        } else {
+            $permissions = json_decode($content, true);
+        }
+
+        if (is_array($permissions) && array_key_exists($username, $permissions)) {
+            $result = $permissions[$username];
+            return !empty($result) ? $result : false;
+        }
+    }
+    // Removed error_log() to prevent flooding logs when file is not found.
+    return false; // Return false if no permissions found.
+}
+
+// Determine whether HTTPS is used.
 $envSecure = getenv('SECURE');
 if ($envSecure !== false) {
-    // Convert the environment variable value to a boolean.
     $secure = filter_var($envSecure, FILTER_VALIDATE_BOOLEAN);
 } else {
     $secure = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off');
@@ -13,25 +89,52 @@ if ($envSecure !== false) {
 $cookieParams = [
     'lifetime' => 7200,
     'path'     => '/',
-    'domain'   => '', // Specify your domain if needed
+    'domain'   => '', // Set your domain as needed.
     'secure'   => $secure,
     'httponly' => true,
     'samesite' => 'Lax'
 ];
-session_set_cookie_params($cookieParams);
 
-ini_set('session.gc_maxlifetime', 7200);
-session_start();
+if (session_status() === PHP_SESSION_NONE) {
+    session_set_cookie_params($cookieParams);
+    ini_set('session.gc_maxlifetime', 7200);
+    session_start();
+}
 
 if (empty($_SESSION['csrf_token'])) {
     $_SESSION['csrf_token'] = bin2hex(random_bytes(32));
 }
 
-// Define BASE_URL (this should point to where index.html is, e.g. your uploads directory)
+// Auto-login via persistent token.
+if (!isset($_SESSION["authenticated"]) && isset($_COOKIE['remember_me_token'])) {
+    $persistentTokensFile = USERS_DIR . 'persistent_tokens.json';
+    $persistentTokens = [];
+    if (file_exists($persistentTokensFile)) {
+        $encryptedContent = file_get_contents($persistentTokensFile);
+        $decryptedContent = decryptData($encryptedContent, $encryptionKey);
+        $persistentTokens = json_decode($decryptedContent, true);
+        if (!is_array($persistentTokens)) {
+            $persistentTokens = [];
+        }
+    }
+    if (isset($persistentTokens[$_COOKIE['remember_me_token']])) {
+        $tokenData = $persistentTokens[$_COOKIE['remember_me_token']];
+        if ($tokenData['expiry'] >= time()) {
+            $_SESSION["authenticated"] = true;
+            $_SESSION["username"] = $tokenData["username"];
+            // IMPORTANT: Set the folderOnly flag here for auto-login.
+            $_SESSION["folderOnly"] = loadUserPermissions($tokenData["username"]);
+        } else {
+            unset($persistentTokens[$_COOKIE['remember_me_token']]);
+            $newEncryptedContent = encryptData(json_encode($persistentTokens, JSON_PRETTY_PRINT), $encryptionKey);
+            file_put_contents($persistentTokensFile, $newEncryptedContent, LOCK_EX);
+            setcookie('remember_me_token', '', time() - 3600, '/', '', $secure, true);
+        }
+    }
+}
+
 define('BASE_URL', 'http://yourwebsite/uploads/');
 
-// If BASE_URL is still the default placeholder, use the server's HTTP_HOST.
-// Otherwise, use BASE_URL and append share.php.
 if (strpos(BASE_URL, 'yourwebsite') !== false) {
     $defaultShareUrl = isset($_SERVER['HTTP_HOST'])
         ? "http://" . $_SERVER['HTTP_HOST'] . "/share.php"
@@ -39,17 +142,4 @@ if (strpos(BASE_URL, 'yourwebsite') !== false) {
 } else {
     $defaultShareUrl = rtrim(BASE_URL, '/') . "/share.php";
 }
-
 define('SHARE_URL', getenv('SHARE_URL') ? getenv('SHARE_URL') : $defaultShareUrl);
-
-define('UPLOAD_DIR', '/var/www/uploads/');
-define('TIMEZONE', 'America/New_York');
-define('DATE_TIME_FORMAT', 'm/d/y  h:iA');
-define('TOTAL_UPLOAD_SIZE', '5G');
-define('USERS_DIR', '/var/www/users/');
-define('USERS_FILE', 'users.txt');
-define('META_DIR','/var/www/metadata/');
-define('META_FILE','file_metadata.json');
-define('TRASH_DIR', UPLOAD_DIR . 'trash/');
-date_default_timezone_set(TIMEZONE);
-?>

copyFiles.php

@@ -18,6 +18,16 @@ if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
     exit;
 }
 
+$username = $_SESSION['username'] ?? '';
+$userPermissions = loadUserPermissions($username);
+if ($username) {
+    $userPermissions = loadUserPermissions($username);
+    if (isset($userPermissions['readOnly']) && $userPermissions['readOnly'] === true) {
+        echo json_encode(["error" => "Read-only users are not allowed to copy files."]);
+        exit();
+    }
+}
+
 $data = json_decode(file_get_contents("php://input"), true);
 if (
     !$data || 

createFolder.php

@@ -1,5 +1,5 @@
 <?php
-require 'config.php';
+require_once 'config.php';
 header('Content-Type: application/json');
 
 // Ensure user is authenticated
@@ -24,6 +24,16 @@ if ($receivedToken !== $_SESSION['csrf_token']) {
     exit;
 }
 
+$username = $_SESSION['username'] ?? '';
+$userPermissions = loadUserPermissions($username);
+if ($username) {
+    $userPermissions = loadUserPermissions($username);
+    if (isset($userPermissions['readOnly']) && $userPermissions['readOnly'] === true) {
+        echo json_encode(["error" => "Read-only users are not allowed to create folders."]);
+        exit();
+    }
+}
+
 // Get the JSON input and decode it
 $input = json_decode(file_get_contents('php://input'), true);
 if (!isset($input['folderName'])) {

createFolderShareLink.php

@@ -0,0 +1,84 @@
+<?php
+// createFolderShareLink.php
+
+require_once 'config.php';
+
+// Get POST input.
+$input = json_decode(file_get_contents("php://input"), true);
+if (!$input) {
+    echo json_encode(["error" => "Invalid input."]);
+    exit;
+}
+
+$folder = isset($input['folder']) ? trim($input['folder']) : "";
+$expirationMinutes = isset($input['expirationMinutes']) ? intval($input['expirationMinutes']) : 60;
+$password = isset($input['password']) ? $input['password'] : "";
+$allowUpload = isset($input['allowUpload']) ? intval($input['allowUpload']) : 0;
+
+// Validate folder name using regex.
+// Allow letters, numbers, underscores, hyphens, spaces and slashes.
+if ($folder !== 'root' && !preg_match('/^[A-Za-z0-9_\- \/]+$/', $folder)) {
+    echo json_encode(["error" => "Invalid folder name."]);
+    exit;
+}
+
+// Generate a secure token.
+try {
+    $token = bin2hex(random_bytes(16)); // 32 hex characters.
+} catch (Exception $e) {
+    echo json_encode(["error" => "Could not generate token."]);
+    exit;
+}
+
+// Calculate expiration time (Unix timestamp).
+$expires = time() + ($expirationMinutes * 60);
+
+// Hash password if provided.
+$hashedPassword = !empty($password) ? password_hash($password, PASSWORD_DEFAULT) : "";
+
+// Define the file to store share folder links.
+$shareFile = META_DIR . "share_folder_links.json";
+$shareLinks = [];
+if (file_exists($shareFile)) {
+    $data = file_get_contents($shareFile);
+    $shareLinks = json_decode($data, true);
+    if (!is_array($shareLinks)) {
+        $shareLinks = [];
+    }
+}
+
+// Clean up expired share links.
+$currentTime = time();
+foreach ($shareLinks as $key => $link) {
+    if (isset($link["expires"]) && $link["expires"] < $currentTime) {
+        unset($shareLinks[$key]);
+    }
+}
+
+// Add the new share record.
+$shareLinks[$token] = [
+    "folder" => $folder,
+    "expires" => $expires,
+    "password" => $hashedPassword,
+    "allowUpload" => $allowUpload
+];
+
+// Save the share links.
+if (file_put_contents($shareFile, json_encode($shareLinks, JSON_PRETTY_PRINT))) {
+// Determine base URL.
+if (defined('BASE_URL') && !empty(BASE_URL) && strpos(BASE_URL, 'yourwebsite') === false) {
+    $baseUrl = rtrim(BASE_URL, '/');
+} else {
+    // Prefer HTTP_HOST over SERVER_ADDR.
+    $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? "https" : "http";
+    // Use HTTP_HOST if set; fallback to gethostbyname if needed.
+    $host = !empty($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : gethostbyname($_SERVER['SERVER_ADDR'] ?? 'localhost');
+    $baseUrl = $protocol . "://" . $host;
+}
+    // The share URL points to shareFolder.php.
+    $link = $baseUrl . "/shareFolder.php?token=" . urlencode($token);
+    echo json_encode(["token" => $token, "expires" => $expires, "link" => $link]);
+} else {
+    echo json_encode(["error" => "Could not save share link."]);
+}
+?>

createShareLink.php

@@ -20,10 +20,8 @@ if ($folder !== 'root' && !preg_match('/^[A-Za-z0-9_\- \/]+$/', $folder)) {
     exit;
 }
 
-// Optionally, you could check if the file exists in the uploads directory here.
-
 // Generate a secure token.
-$token = bin2hex(random_bytes(4)); // 8 hex characters.
+$token = bin2hex(random_bytes(16)); // 32 hex characters.
 
 // Calculate expiration (Unix timestamp).
 $expires = time() + ($expirationMinutes * 60);
@@ -42,6 +40,14 @@ if (file_exists($shareFile)) {
     }
 }
 
+// Clean up expired share links.
+$currentTime = time();
+foreach ($shareLinks as $key => $link) {
+    if ($link["expires"] < $currentTime) {
+        unset($shareLinks[$key]);
+    }
+}
+
 // Add record.
 $shareLinks[$token] = [
     "folder" => $folder,

css/styles.css

@@ -12,31 +12,28 @@ body {
 
 body {
   letter-spacing: 0.2px;
+  overflow-x: hidden;
+}
+
+.custom-dash {
+  display: inline-block;
+  transform: scaleX(1.5);
+  padding-left: 2px !important;
+  padding-right: 2px !important;
 }
 
 /* CONTAINER */
-.container {
-  margin-top: 20px;
-}
-
+.container,
 .container-fluid {
-  padding-left: 5px !important;
-  padding-right: 5px !important;
-  margin-top: 20px;
+  margin-top: 10px;
+  padding-right: 4px !important;
+  padding-left: 4px !important;
 }
 
-/* Increase left/right padding for larger screens */
-@media (min-width: 768px) {
+@media (min-width: 1300px) {
   .container-fluid {
-    padding-left: 50px !important;
-    padding-right: 50px !important;
-  }
-}
-
-@media (min-width: 1200px) {
-  .container-fluid {
-    padding-left: 100px !important;
-    padding-right: 100px !important;
+    padding-left: 40px !important;
+    padding-right: 40px !important;
   }
 }
 
@@ -47,9 +44,6 @@ body {
 /************************************************************/
 /* FLEXBOX HEADER: LOGO, TITLE, BUTTONS FIXED               */
 /************************************************************/
-#uploadCard, #folderManagementCard {
-  min-height: 342px;
-}
 
 .btn-login {
   margin-top: 10px;
@@ -75,7 +69,7 @@ body {
   align-items: center;
   justify-content: space-between;
   width: 100%;
-  height: 80px;
+  height: 65px;
   padding: 10px 20px;
   background-color: #2196F3;
   transition: background-color 0.3s ease;
@@ -88,13 +82,13 @@ body.dark-mode .header-container {
 }
 
 .header-logo {
-  max-height: 70px;
+  max-height: 60px;
   width: auto;
   display: block;
 }
 
 .header-logo svg {
-  height: 70px;
+  height: 60px;
   width: auto;
 }
 
@@ -142,14 +136,14 @@ body.dark-mode header {
   justify-content: flex-end;
   flex: 1;
   min-width: 150px;
-  gap: 10px;
+  gap: 0px;
 }
 
 .header-buttons button {
   background: none;
   border: none;
   cursor: pointer;
-  padding: 10px;
+  padding: 9px;
   border-radius: 50%;
   color: #fff;
   transition: background-color 0.2s ease, box-shadow 0.2s ease;
@@ -229,17 +223,19 @@ body.dark-mode .folder-help-tooltip {
 #folderHelpBtn i.material-icons.folder-help-icon {
   -webkit-text-fill-color: orange !important;
   color: inherit !important;
+  padding-right: 10px !important;
 }
 
 body.dark-mode #folderHelpBtn i.material-icons.folder-help-icon {
   -webkit-text-fill-color: #ffa500 !important;
+  padding-right: 10px !important;
 }
 
 /************************************************************/
 /* RESPONSIVE HEADER FIXES                                 */
 /************************************************************/
 
-@media (max-width: 970px) {
+@media (max-width: 790px) {
   .header-container {
     flex-wrap: wrap;
     height: auto;
@@ -279,7 +275,7 @@ body.dark-mode #folderHelpBtn i.material-icons.folder-help-icon {
     flex-direction: row;
     justify-content: center;
     gap: 5px;
-    margin-top: 10px;
+    margin-top: 5px;
   }
 }
 
@@ -292,12 +288,14 @@ body.dark-mode #folderHelpBtn i.material-icons.folder-help-icon {
   color: white;
 }
 
-.material-icons.folder-icon {
+.material-icons.folder-icon,
+.material-icons.gallery-icon {
   color: black;
   margin-right: 5px;
 }
 
-body.dark-mode .material-icons.folder-icon {
+body.dark-mode .material-icons.folder-icon,
+body.dark-mode .material-icons.gallery-icon {
   color: white;
   margin-right: 5px;
 }
@@ -311,7 +309,7 @@ body.dark-mode .material-icons.folder-icon {
   border: none;
   color: red;
   cursor: pointer;
-  margin-right: 8px;
+  margin-right: 0px;
   padding: 0;
   border-radius: 50%;
   transition: background-color 0.3s;
@@ -325,6 +323,10 @@ body.dark-mode .material-icons.folder-icon {
 /* ===========================================================
    FORMS & LOGIN
    =========================================================== */
+.remember-me-container {
+  margin-top: 20px !important;
+}
+
 #loginForm {
   margin: 0 auto;
   max-width: 400px;
@@ -366,21 +368,6 @@ body.dark-mode #loginForm button:hover {
    CARDS & MODALS
    =========================================================== */
 
-.card {
-  background-color: #fff;
-  color: #000;
-  border: 1px solid #ddd;
-  max-width: 900px;
-  width: 100%;
-  margin: 0 auto;
-}
-
-body.dark-mode .card {
-  background-color: #2c2c2c;
-  color: #e0e0e0;
-  border: 1px solid #444;
-}
-
 #restoreFilesModal .modal-content {
   position: fixed !important;
   top: 50% !important;
@@ -521,17 +508,6 @@ body.dark-mode .modal .modal-content {
   border-color: #444;
 }
 
-.editor-header {
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-  padding: 5px 10px;
-}
-
-body.dark-mode .editor-header {
-  background-color: #2c2c2c;
-}
-
 .editor-close-btn {
   position: absolute;
   top: 10px;
@@ -574,12 +550,12 @@ body.dark-mode .editor-close-btn:hover {
 /* Editor Modal */
 .editor-modal {
   position: fixed;
-  top: 5%;
+  top: 2%;
   left: 5%;
   width: 90vw;
   height: 90vh;
   background-color: #fff;
-  padding: 20px;
+  padding: 10px 20px 20px 20px;
   border: 1px solid #ccc;
   border-radius: 4px !important;
   box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2) !important;
@@ -616,15 +592,25 @@ body.dark-mode .editor-modal {
   }
 }
 
-.editor-title {
-  white-space: nowrap !important;
-  overflow: hidden !important;
-  text-overflow: ellipsis !important;
-  font-size: 1.5rem;
-  max-width: 95%;
-  display: block;
+.editor-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  height: 33px;
+  padding: 0 10px;
+  margin-bottom: 7px;
 }
 
+.editor-title {
+  margin: 0;
+  line-height: 33px;
+}
+
+body.dark-mode .editor-header {
+  background-color: #2c2c2c;
+}
+
+
 @media (max-width: 600px) {
   .editor-title {
     font-size: 1.2rem;
@@ -634,6 +620,7 @@ body.dark-mode .editor-modal {
 
 .editor-controls {
   text-align: right;
+  margin-right: 30px;
   margin-bottom: 5px;
 }
 
@@ -663,12 +650,15 @@ body.dark-mode .editor-modal {
 }
 
 #uploadBtn {
-  margin-top: 20px;
   font-size: 20px;
   padding: 10px 22px;
   align-items: center;
 }
 
+.card-body.d-flex.flex-column {
+  padding: 0.75rem !important;
+}
+
 #customChooseBtn {
   background-color: #9E9E9E;
   color: #fff;
@@ -690,6 +680,37 @@ body.dark-mode .editor-modal {
 /* ===========================================================
    UPLOAD PROGRESS STYLES
    =========================================================== */
+.pause-resume-btn {
+  background: none;
+  border: none;
+  padding: 0;
+  margin: 0;
+  cursor: pointer;
+  outline: none;
+  margin-right: 5px;
+}
+
+.material-icons.pauseResumeBtn {
+  color: black !important;
+  padding: 4px;
+  border-radius: 4px;
+  transition: background-color 0.2s ease, color 0.2s ease;
+}
+
+body.dark-mode .material-icons.pauseResumeBtn {
+  color: white !important;
+}
+
+body.dark-mode .material-icons.pauseResumeBtn:hover {
+  background-color: rgba(255, 215, 0, 0.3);
+  color: #fff;
+}
+
+body:not(.dark-mode) .material-icons.pauseResumeBtn:hover {
+  background-color: rgba(0, 0, 0, 0.1);
+  color: #000;
+}
+
 #uploadProgressContainer ul {
   list-style: none;
   padding: 0;
@@ -831,7 +852,8 @@ body.dark-mode .editor-modal {
   color: white;
 }
 
-.rename-btn .material-icons {
+.rename-btn .material-icons,
+#renameFolderBtn .material-icons {
   color: black !important;
 }
 
@@ -899,6 +921,7 @@ body.dark-mode #fileList table tr {
   word-break: break-word !important;
   text-align: left !important;
   line-height: 1.2 !important;
+  vertical-align: middle !important;
   padding: 8px 10px !important;
   max-width: 250px !important;
   min-width: 120px !important;
@@ -978,29 +1001,6 @@ label {
   display: none;
 }
 
-#uploadFolderRow {
-  margin-bottom: 20px;
-}
-
-@media (max-width: 768px) {
-  #uploadFolderRow .col-md-6 {
-    margin-bottom: 15px;
-  }
-
-  #uploadFolderRow .col-md-6:last-child {
-    margin-bottom: 0;
-  }
-}
-
-.card-header {
-  font-size: 1.2rem;
-  font-weight: bold;
-}
-
-.card-body .form-group {
-  margin-bottom: 5px !important;
-}
-
 #createFolderBtn {
   margin-top: 0px !important;
   height: 40px !important;
@@ -1055,37 +1055,9 @@ body.dark-mode .custom-prev-next-btn:hover:not(:disabled) {
   background-color: #555;
 }
 
-.folder-option:hover {
-  background-color: #f0f0f0;
-  padding: 2px 4px;
-}
-
-.folder-option.selected {
-  background-color: #d0d0d0;
-  border-radius: 4px;
-  padding: 2px 4px;
-}
-
-body.dark-mode .folder-option.selected {
-  background-color: #444;
-  color: #fff;
-  border-radius: 4px;
-  padding: 2px 4px;
-}
-
-body.dark-mode .folder-option:hover {
-  background-color: #333;
-  color: #fff;
-  padding: 2px 4px;
-}
-
-.custom-folder-card-body {
-  padding-top: 5px !important;
-}
-
 #customToast {
   position: fixed;
-  top: 20px;
+  bottom: 20px;
   right: 20px;
   background: #333;
   color: #fff;
@@ -1100,7 +1072,7 @@ body.dark-mode .folder-option:hover {
 }
 
 #customToast.show {
-  opacity: 1;
+  opacity: 0.9;
 }
 
 .button-wrap {
@@ -1129,9 +1101,17 @@ body.dark-mode .folder-option:hover {
 }
 
 #fileListContainer {
-  padding: 10px;
-  margin-top: 20px;
-  margin-bottom: 20px;
+  max-width: 100%;
+  padding-bottom: 10px !important;
+  padding-left: 5px !important;
+  padding-right: 5px !important;
+  margin: 0 auto 20px;
+}
+
+@media (max-width: 750px) {
+  #fileListContainer {
+    width: 99%;
+  }
 }
 
 body.dark-mode #fileListContainer {
@@ -1139,9 +1119,6 @@ body.dark-mode #fileListContainer {
   color: #e0e0e0;
   border: 1px solid #444;
   border-radius: 8px;
-  padding: 10px;
-  margin-top: 20px;
-
 }
 
 #fileListContainer>h2,
@@ -1160,7 +1137,7 @@ body.dark-mode #fileListContainer {
 }
 
 .col-12.col-md-4.text-left {
-  margin-left: -15px;
+  margin-left: -17px;
 }
 
 @media (max-width: 600px) {
@@ -1171,6 +1148,7 @@ body.dark-mode #fileListContainer {
 
 #fileListTitle {
   font-size: 1.8em;
+  margin-top: 10px;
   margin-bottom: 15px;
 }
 
@@ -1231,6 +1209,24 @@ body.dark-mode #fileListContainer {
 /* ===========================================================
    FOLDER TREE STYLES
    =========================================================== */
+/* Make breadcrumb links look clickable */
+.breadcrumb-link {
+  cursor: pointer;
+  color: #007bff;
+  text-decoration: underline;
+}
+
+.breadcrumb-link:hover {
+  color: #0056b3;
+}
+
+.breadcrumb-link.selected {
+  background-color: #e9ecef;
+  font-weight: bold;
+  padding: 2px 4px;
+  border-radius: 4px;
+}
+
 .folder-tree {
   list-style-type: none;
   padding-left: 10px;
@@ -1263,15 +1259,38 @@ body.dark-mode #fileListContainer {
   width: 30px;
 }
 
-.folder-option {
-  cursor: pointer;
-
-}
-
 #folderTreeContainer {
   display: block;
 }
 
+.folder-option {
+  cursor: pointer;
+}
+
+.folder-option:hover {
+  background-color: #f0f0f0;
+  padding: 2px 4px;
+}
+
+.folder-option.selected {
+  background-color: #d0d0d0;
+  border-radius: 4px;
+  padding: 2px 4px;
+}
+
+body.dark-mode .folder-option.selected {
+  background-color: #444;
+  color: #fff;
+  border-radius: 4px;
+  padding: 2px 4px;
+}
+
+body.dark-mode .folder-option:hover {
+  background-color: #333;
+  color: #fff;
+  padding: 2px 4px;
+}
+
 /* ===========================================================
    FILE MANAGER INLINE STYLE REMOVAL - New Classes
    =========================================================== */
@@ -1280,12 +1299,13 @@ body.dark-mode #fileListContainer {
   display: flex;
   align-items: center;
   justify-content: center;
-  flex-wrap: nowrap;
-  text-align: center;
-  min-height: 30px;
-  margin: 0 auto 10px;
-  padding: 10px;
-  width: 90% !important;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  height: 25px;
+  padding: 5px;
+  margin-bottom: 10px;
+  max-width: 90%;
 }
 
 .image-preview-modal-content {
@@ -1329,7 +1349,6 @@ body.dark-mode .image-preview-modal-content {
 }
 
 .share-btn {
-  /* Your custom styles here */
   border: none;
   color: white;
   padding: 8px 12px;
@@ -1567,7 +1586,7 @@ body.dark-mode .btn-secondary {
 
 #toggleViewBtn {
   margin-bottom: 20px;
-  margin-left: 15px;
+  margin-left: 14px;
   padding: 10px 20px;
   background: rgba(0, 0, 0, 0.6);
   color: #fff;
@@ -1579,9 +1598,15 @@ body.dark-mode .btn-secondary {
   transition: background 0.3s ease, box-shadow 0.3s ease;
 }
 
+@media (max-width: 768px) {
+  #toggleViewBtn {
+    margin-left: 0 !important;
+  }
+}
+
 @media (max-width: 600px) {
   #toggleViewBtn {
-    margin-left: auto !important;
+    margin-left: 0 !important;
     margin-right: auto !important;
     display: block !important;
   }
@@ -1701,7 +1726,7 @@ body.dark-mode .folder-help-summary {
 body.dark-mode .folder-help-icon {
   color: #f6a72c;
   font-size: 20px;
-  
+
 }
 
 body.dark-mode #searchIcon {
@@ -1796,4 +1821,343 @@ body.dark-mode .drop-hover {
 
 #restoreFilesList li label {
   margin-left: 8px !important;
-}
+}
+
+body.dark-mode #fileContextMenu {
+  background-color: #2c2c2c !important;
+  border: 1px solid #555 !important;
+  color: #e0e0e0 !important;
+}
+body.dark-mode #fileContextMenu div {
+  color: #e0e0e0 !important;
+}
+
+#folderContextMenu {
+  font-family: Arial, sans-serif;
+  font-size: 14px;
+}
+body.dark-mode #folderContextMenu {
+  background-color: #2c2c2c;
+  border-color: #555;
+  color: #e0e0e0;
+}
+
+.main-wrapper {
+  display: flex;
+  flex-direction: row;
+}
+
+.drop-target-sidebar {
+  display: none;
+  width: 50px;
+  transition: width 0.3s ease;
+  background-color: #f8f9fa;
+  border-right: 2px dashed #1565C0;
+  padding: 10px;
+}
+@media (min-width: 769px) {
+  .drop-target-sidebar {
+    display: block;
+  }
+}
+.drop-target-sidebar.active {
+  width: 350px;
+}
+
+.main-column {
+  flex: 1;
+  transition: margin-left 0.3s ease;
+}
+
+#uploadFolderRow {
+  display: flex;
+  flex-wrap: nowrap;
+  gap: 1rem;
+}
+@media (max-width: 768px) {
+  #uploadFolderRow {
+    gap: 0px;
+  }
+}
+#leftCol,
+#rightCol {
+  display: flex;
+  justify-content: center;
+  min-width: 370px;
+  align-self: flex-start;
+}
+
+#leftCol {
+  flex: 0 1 60%;
+}
+#rightCol {
+  flex: 0 1 40%;
+
+}
+
+@media (max-width: 768px) {
+  .main-wrapper {
+    flex-direction: column;
+  }
+  .drop-target-sidebar {
+    display: none !important;
+  }
+  #uploadFolderRow {
+    flex-wrap: wrap;
+  }
+  #leftCol, #rightCol {
+    flex: 0 1 100% !important;
+  }
+  #rightCol {
+    margin-bottom: 0;
+  }
+}
+
+#sidebarDropArea.highlight,
+#uploadFolderRow.highlight {
+  border: 2px dashed #1565C0;
+  background-color: #eef;
+}
+
+.drag-header {
+  cursor: grab;
+  user-select: none;
+  position: relative;
+}
+
+.drag-header::after {
+  content: '⋮⋮';
+  position: absolute;
+  right: 10px;
+  top: 50%;
+  transform: translateY(-50%);
+  font-size: 16px;
+  color: #1565C0;
+  pointer-events: none;
+}
+
+.dragging {
+  transform: scale(1.05);
+  box-shadow: 0 20px 30px rgba(0, 0, 0, 0.3);
+  transition: transform 0.2s ease, box-shadow 0.2s ease;
+  z-index: 10000;
+}
+
+#uploadCard,
+#folderManagementCard {
+  transition: transform 0.3s ease, opacity 0.3s ease;
+  width: 100%;
+  margin-bottom: 20px;
+  min-height: 320px;
+}
+
+
+#uploadFolderRow.highlight {
+  min-height: 320px;
+  margin-bottom: 20px;
+}
+
+#sidebarDropArea,
+#uploadFolderRow {
+  background-color: transparent;
+}
+#sidebarDropArea {
+  display: none;
+}
+
+body.dark-mode #sidebarDropArea,
+body.dark-mode #uploadFolderRow {
+  background-color: transparent;
+}
+
+body.dark-mode #sidebarDropArea.highlight,
+body.dark-mode #uploadFolderRow.highlight { 
+  background-color: #333; 
+  border: 2px dashed #555; 
+  color: #fff;
+}
+
+.drop-target-sidebar.highlight {
+  margin-top: 10px;
+}
+
+.drop-target-sidebar:not(.highlight) {
+  border: none !important;
+}
+
+.dragging:focus {
+  outline: none;
+}
+
+#sidebarDropArea > .card {
+  margin-bottom: 1rem;
+}
+
+.card {
+  background-color: #fff;
+  color: #000;
+  border: 1px solid #ddd;
+  max-width: 900px;
+  width: 100%;
+  margin: 0 auto;
+}
+
+body.dark-mode .card {
+  background-color: #2c2c2c;
+  color: #e0e0e0;
+  border: 1px solid #444;
+}
+
+.card-header {
+  font-size: 1.2rem;
+  font-weight: bold;
+}
+
+.custom-folder-card-body {
+  padding-top: 5px !important;
+  padding-right: 0 !important;
+}
+
+#addUserModal,
+#removeUserModal {
+  z-index: 5000 !important;
+}
+
+#customConfirmModal {
+  z-index: 6000 !important;  
+}
+
+.admin-panel-content {
+  background: #fff;
+  color: #000;
+}
+
+body.dark-mode .admin-panel-content {
+  background: #2c2c2c;
+  color: #e0e0e0;
+  border: 1px solid #444;
+}
+
+body.dark-mode .admin-panel-content input,
+body.dark-mode .admin-panel-content select,
+body.dark-mode .admin-panel-content textarea {
+  background: #3a3a3a;
+  color: #e0e0e0;
+  border: 1px solid #555;
+}
+
+body.dark-mode .admin-panel-content label {
+  color: #e0e0e0;
+}
+
+#openChangePasswordModalBtn {
+  width: auto;
+  padding: 5px 10px;
+  font-size: 14px;
+  margin-right: 300px;
+}
+
+#changePasswordModal {
+  z-index: 9999;
+}
+
+@keyframes spin {
+  0% { transform: rotate(0deg); }
+  100% { transform: rotate(360deg); }
+}
+.spinning {
+  animation: spin 1s linear infinite;
+}
+
+.download-spinner {
+  font-size: 48px;
+  animation: spin 2s linear infinite;
+  color: var(--download-spinner-color, #000);
+}
+
+body:not(.dark-mode) {
+  --download-spinner-color: #000;
+}
+
+body.dark-mode {
+  --download-spinner-color: #fff;
+}
+
+.rise-effect {
+  transform: translateY(-20px);
+  transition: transform 0.3s ease;
+}
+
+.toggle-modal-btn,
+.collapse-btn {
+  background: none;
+  border: none;
+  outline: none;
+  cursor: pointer;
+  padding: 8px;
+  font-size: 24px;
+  color: #616161;
+  border-radius: 50%;
+  transition: background 0.3s ease;
+}
+
+.toggle-modal-btn:hover,
+.collapse-btn:hover {
+  background: rgba(0, 0, 0, 0.1);
+}
+
+.toggle-modal-btn:focus,
+.collapse-btn:focus {
+  outline: none;
+}
+
+.header-drop-zone {
+  width: 66px;
+  height: 36px;
+  align-items: center;
+  justify-content: center;
+  gap: 5px;
+  display: inline-flex;
+}
+
+.header-drop-zone.drag-active {
+  border: 2px dashed #1565C0;
+  background-color: #eef;
+  background-color: transparent;
+  transition: width 0.3s ease;
+  box-sizing: border-box;
+}
+body.dark-mode .header-drop-zone.drag-active { 
+  background-color: #333; 
+  border: 2px dashed #555; 
+  color: #fff;
+}
+
+.header-drop-zone.drag-active:empty::before {
+  content: "Drop";
+  font-size: 10px;
+  color: #aaa;
+}
+
+/* Disable text selection on rows to prevent accidental copying when shift-clicking */
+#fileList tbody tr.clickable-row {
+  -webkit-user-select: none; /* Safari */
+  -moz-user-select: none;    /* Firefox */
+  -ms-user-select: none;     /* IE10+/Edge */
+  user-select: none;         /* Standard */
+}
+
+#fileSummary {
+  color: black;
+}
+@media only screen and (max-width: 600px) {
+  #fileSummary {
+      float: none !important;
+      margin: 0 auto !important;
+      text-align: center !important;
+  }
+}
+
+body.dark-mode #fileSummary {
+  color: white;
+}

deleteFiles.php

@@ -19,6 +19,20 @@ if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
     exit;
 }
 
+// Define $username first.
+$username = $_SESSION['username'] ?? '';
+
+// Now load the user's permissions.
+$userPermissions = loadUserPermissions($username);
+
+// Check if the user is read-only.
+if ($username) {
+    if (isset($userPermissions['readOnly']) && $userPermissions['readOnly'] === true) {
+        echo json_encode(["error" => "Read-only users are not allowed to delete files."]);
+        exit();
+    }
+}
+
 // --- Setup Trash Folder & Metadata ---
 $trashDir = rtrim(TRASH_DIR, '/\\') . DIRECTORY_SEPARATOR;
 if (!file_exists($trashDir)) {

deleteFolder.php

@@ -1,5 +1,5 @@
 <?php
-require 'config.php';
+require_once 'config.php';
 header('Content-Type: application/json');
 
 // Ensure user is authenticated
@@ -24,6 +24,16 @@ if ($receivedToken !== $_SESSION['csrf_token']) {
     exit;
 }
 
+$username = $_SESSION['username'] ?? '';
+$userPermissions = loadUserPermissions($username);
+if ($username) {
+    $userPermissions = loadUserPermissions($username);
+    if (isset($userPermissions['readOnly']) && $userPermissions['readOnly'] === true) {
+        echo json_encode(["error" => "Read-only users are not allowed to delete folders."]);
+        exit();
+    }
+}
+
 // Get the JSON input and decode it
 $input = json_decode(file_get_contents('php://input'), true);
 if (!isset($input['folder'])) {

deleteTrashFiles.php

@@ -1,5 +1,4 @@
 <?php
-session_start();
 require_once 'config.php';
 header('Content-Type: application/json');
 

download.php

@@ -1,8 +1,6 @@
 <?php
 require_once 'config.php';
 
-// For GET requests (which download.php will use), we assume session authentication is enough.
-
 // Check if the user is authenticated.
 if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
     http_response_code(401);
@@ -22,38 +20,70 @@ if (!preg_match('/^[A-Za-z0-9_\-\.\(\) ]+$/', $file)) {
     exit;
 }
 
-// Determine the directory.
-if ($folder !== 'root') {
-    $directory = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR . $folder . DIRECTORY_SEPARATOR;
-} else {
-    $directory = UPLOAD_DIR;
+// Get the realpath of the upload directory.
+$uploadDirReal = realpath(UPLOAD_DIR);
+if ($uploadDirReal === false) {
+    http_response_code(500);
+    echo json_encode(["error" => "Server misconfiguration."]);
+    exit;
 }
 
-$filePath = $directory . $file;
+// Determine the directory.
+if ($folder === 'root') {
+    $directory = $uploadDirReal;
+} else {
+    // Prevent path traversal in folder parameter.
+    if (strpos($folder, '..') !== false) {
+        http_response_code(400);
+        echo json_encode(["error" => "Invalid folder name."]);
+        exit;
+    }
+    
+    $directoryPath = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR . $folder;
+    $directory = realpath($directoryPath);
+    
+    // Ensure that the resolved directory exists and is within the allowed UPLOAD_DIR.
+    if ($directory === false || strpos($directory, $uploadDirReal) !== 0) {
+        http_response_code(400);
+        echo json_encode(["error" => "Invalid folder path."]);
+        exit;
+    }
+}
 
-if (!file_exists($filePath)) {
+// Build the file path.
+$filePath = $directory . DIRECTORY_SEPARATOR . $file;
+$realFilePath = realpath($filePath);
+
+// Validate that the real file path exists and is within the allowed directory.
+if ($realFilePath === false || strpos($realFilePath, $uploadDirReal) !== 0) {
+    http_response_code(403);
+    echo json_encode(["error" => "Access forbidden."]);
+    exit;
+}
+
+if (!file_exists($realFilePath)) {
     http_response_code(404);
     echo json_encode(["error" => "File not found."]);
     exit;
 }
 
 // Serve the file.
-$mimeType = mime_content_type($filePath);
+$mimeType = mime_content_type($realFilePath);
 header("Content-Type: " . $mimeType);
 
 // For images, serve inline; for other types, force download.
-$ext = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
+$ext = strtolower(pathinfo($realFilePath, PATHINFO_EXTENSION));
 if (in_array($ext, ['jpg','jpeg','png','gif','bmp','webp','svg','ico'])) {
-    header('Content-Disposition: inline; filename="' . basename($filePath) . '"');
+    header('Content-Disposition: inline; filename="' . basename($realFilePath) . '"');
 } else {
-    header('Content-Disposition: attachment; filename="' . basename($filePath) . '"');
+    header('Content-Disposition: attachment; filename="' . basename($realFilePath) . '"');
 }
-header('Content-Length: ' . filesize($filePath));
+header('Content-Length: ' . filesize($realFilePath));
 
 // Disable caching.
 header('Cache-Control: no-store, no-cache, must-revalidate');
 header('Pragma: no-cache');
 
-readfile($filePath);
+readfile($realFilePath);
 exit;
 ?>

downloadSharedFile.php

@@ -0,0 +1,89 @@
+<?php
+// downloadSharedFile.php
+
+require_once 'config.php';
+
+// Retrieve and sanitize token and file name from GET.
+$token = filter_input(INPUT_GET, 'token', FILTER_SANITIZE_STRING);
+$file = filter_input(INPUT_GET, 'file', FILTER_SANITIZE_STRING);
+
+if (empty($token) || empty($file)) {
+    http_response_code(400);
+    echo "Missing token or file parameter.";
+    exit;
+}
+
+// Load the share folder records.
+$shareFile = META_DIR . "share_folder_links.json";
+if (!file_exists($shareFile)) {
+    http_response_code(404);
+    echo "Share link not found.";
+    exit;
+}
+
+$shareLinks = json_decode(file_get_contents($shareFile), true);
+if (!is_array($shareLinks) || !isset($shareLinks[$token])) {
+    http_response_code(404);
+    echo "Share link not found.";
+    exit;
+}
+
+$record = $shareLinks[$token];
+
+// Check if the link has expired.
+if (time() > $record['expires']) {
+    http_response_code(403);
+    echo "This share link has expired.";
+    exit;
+}
+
+// Get the shared folder from the record.
+$folder = trim($record['folder'], "/\\ ");
+$folderPath = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR . $folder;
+$realFolderPath = realpath($folderPath);
+$uploadDirReal = realpath(UPLOAD_DIR);
+
+if ($realFolderPath === false || strpos($realFolderPath, $uploadDirReal) !== 0 || !is_dir($realFolderPath)) {
+    http_response_code(404);
+    echo "Shared folder not found.";
+    exit;
+}
+
+// Sanitize the filename to prevent directory traversal.
+if (strpos($file, "/") !== false || strpos($file, "\\") !== false) {
+    http_response_code(400);
+    echo "Invalid file name.";
+    exit;
+}
+$file = basename($file);
+
+// Build the full file path and verify it is inside the shared folder.
+$filePath = $realFolderPath . DIRECTORY_SEPARATOR . $file;
+$realFilePath = realpath($filePath);
+if ($realFilePath === false || strpos($realFilePath, $realFolderPath) !== 0 || !is_file($realFilePath)) {
+    http_response_code(404);
+    echo "File not found.";
+    exit;
+}
+
+// Determine MIME type.
+$mimeType = mime_content_type($realFilePath);
+header("Content-Type: " . $mimeType);
+
+// Set Content-Disposition header.
+// Inline if the file is an image; attachment for others.
+$ext = strtolower(pathinfo($realFilePath, PATHINFO_EXTENSION));
+if (in_array($ext, ['jpg','jpeg','png','gif','bmp','webp','svg','ico'])) {
+    header('Content-Disposition: inline; filename="' . basename($realFilePath) . '"');
+} else {
+    header('Content-Disposition: attachment; filename="' . basename($realFilePath) . '"');
+}
+
+// Disable caching.
+header("Cache-Control: no-store, no-cache, must-revalidate");
+header("Pragma: no-cache");
+
+// Read and output the file.
+readfile($realFilePath);
+exit;
+?>

extractZip.php

@@ -0,0 +1,165 @@
+<?php
+require_once 'config.php';
+header('Content-Type: application/json');
+
+// --- CSRF Protection ---
+$headers = array_change_key_case(getallheaders(), CASE_LOWER);
+$receivedToken = isset($headers['x-csrf-token']) ? trim($headers['x-csrf-token']) : '';
+if ($receivedToken !== $_SESSION['csrf_token']) {
+    http_response_code(403);
+    echo json_encode(["error" => "Invalid CSRF token"]);
+    exit;
+}
+
+// Ensure user is authenticated.
+if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
+    http_response_code(401);
+    echo json_encode(["error" => "Unauthorized"]);
+    exit;
+}
+
+$username = $_SESSION['username'] ?? '';
+$userPermissions = loadUserPermissions($username);
+if ($username) {
+    $userPermissions = loadUserPermissions($username);
+    if (isset($userPermissions['readOnly']) && $userPermissions['readOnly'] === true) {
+        echo json_encode(["error" => "Read-only users are not allowed to extract zip files"]);
+        exit();
+    }
+}
+
+// Read and decode the JSON input.
+$rawData = file_get_contents("php://input");
+$data = json_decode($rawData, true);
+if (!is_array($data) || !isset($data['folder']) || !isset($data['files']) || !is_array($data['files'])) {
+    http_response_code(400);
+    echo json_encode(["error" => "Invalid input."]);
+    exit;
+}
+
+$folder = $data['folder'];
+$files = $data['files'];
+
+if (empty($files)) {
+    http_response_code(400);
+    echo json_encode(["error" => "No files specified."]);
+    exit;
+}
+
+// Validate folder name (allow "root" or valid subfolder names).
+if ($folder !== "root") {
+    $parts = explode('/', $folder);
+    foreach ($parts as $part) {
+        if (empty($part) || $part === '.' || $part === '..' || !preg_match('/^[A-Za-z0-9_\-\.\(\) ]+$/', $part)) {
+            http_response_code(400);
+            echo json_encode(["error" => "Invalid folder name."]);
+            exit;
+        }
+    }
+    $relativePath = implode(DIRECTORY_SEPARATOR, $parts) . DIRECTORY_SEPARATOR;
+} else {
+    $relativePath = "";
+}
+
+$baseDir = realpath(UPLOAD_DIR);
+if ($baseDir === false) {
+    http_response_code(500);
+    echo json_encode(["error" => "Uploads directory not configured correctly."]);
+    exit;
+}
+
+$folderPath = $baseDir . DIRECTORY_SEPARATOR . $relativePath;
+$folderPathReal = realpath($folderPath);
+if ($folderPathReal === false || strpos($folderPathReal, $baseDir) !== 0) {
+    http_response_code(404);
+    echo json_encode(["error" => "Folder not found."]);
+    exit;
+}
+
+// ---------- Metadata Setup ----------
+function getMetadataFilePath($folder) {
+    if (strtolower($folder) === 'root' || $folder === '') {
+        return META_DIR . "root_metadata.json";
+    }
+    return META_DIR . str_replace(['/', '\\', ' '], '-', $folder) . '_metadata.json';
+}
+
+$srcMetaFile = getMetadataFilePath($folder);
+$destMetaFile = getMetadataFilePath($folder);
+$srcMetadata = file_exists($srcMetaFile) ? json_decode(file_get_contents($srcMetaFile), true) : [];
+$destMetadata = file_exists($destMetaFile) ? json_decode(file_get_contents($destMetaFile), true) : [];
+
+$errors = [];
+$allSuccess = true;
+$extractedFiles = array(); // Array to collect names of extracted files
+$safeFileNamePattern = '/^[A-Za-z0-9_\-\.\(\) ]+$/';
+
+// ---------- Process Each File ----------
+foreach ($files as $zipFileName) {
+    $originalName = basename(trim($zipFileName));
+    // Process only .zip files.
+    if (strtolower(substr($originalName, -4)) !== '.zip') {
+        continue;
+    }
+    if (!preg_match($safeFileNamePattern, $originalName)) {
+        $errors[] = "$originalName has an invalid name.";
+        $allSuccess = false;
+        continue;
+    }
+    
+    $zipFilePath = $folderPathReal . DIRECTORY_SEPARATOR . $originalName;
+    if (!file_exists($zipFilePath)) {
+        $errors[] = "$originalName does not exist in folder.";
+        $allSuccess = false;
+        continue;
+    }
+    
+    $zip = new ZipArchive();
+    if ($zip->open($zipFilePath) !== TRUE) {
+        $errors[] = "Could not open $originalName as a zip file.";
+        $allSuccess = false;
+        continue;
+    }
+    
+    // Attempt extraction.
+    if (!$zip->extractTo($folderPathReal)) {
+        $errors[] = "Failed to extract $originalName.";
+        $allSuccess = false;
+    } else {
+        // Collect extracted file names from this zip.
+        for ($i = 0; $i < $zip->numFiles; $i++) {
+            $entryName = $zip->getNameIndex($i);
+            $extractedFileName = basename($entryName);
+            if ($extractedFileName) {
+                $extractedFiles[] = $extractedFileName;
+            }
+        }
+        // Update metadata for each extracted file if the zip file has metadata.
+        if (isset($srcMetadata[$originalName])) {
+            $zipMeta = $srcMetadata[$originalName];
+            // Iterate through all entries in the zip.
+            for ($i = 0; $i < $zip->numFiles; $i++) {
+                $entryName = $zip->getNameIndex($i);
+                $extractedFileName = basename($entryName);
+                if ($extractedFileName) {
+                    $destMetadata[$extractedFileName] = $zipMeta;
+                }
+            }
+        }
+    }
+    $zip->close();
+}
+
+// Write updated metadata back to the destination metadata file.
+if (file_put_contents($destMetaFile, json_encode($destMetadata, JSON_PRETTY_PRINT)) === false) {
+    $errors[] = "Failed to update metadata.";
+    $allSuccess = false;
+}
+
+if ($allSuccess) {
+    echo json_encode(["success" => true, "extractedFiles" => $extractedFiles]);
+} else {
+    echo json_encode(["success" => false, "error" => implode(" ", $errors)]);
+}
+exit;
+?>

folderManager.js

@@ -1,487 +0,0 @@
-// folderManager.js
-
-import { loadFileList } from './fileManager.js';
-import { showToast, escapeHTML } from './domUtils.js';
-
-// ----------------------
-// Helper Functions (Data/State)
-// ----------------------
-
-// Formats a folder name for display (e.g. adding indentations).
-export function formatFolderName(folder) {
-  if (typeof folder !== "string") return "";
-  if (folder.indexOf("/") !== -1) {
-    let parts = folder.split("/");
-    let indent = "";
-    for (let i = 1; i < parts.length; i++) {
-      indent += "\u00A0\u00A0\u00A0\u00A0"; // 4 non-breaking spaces per level
-    }
-    return indent + parts[parts.length - 1];
-  } else {
-    return folder;
-  }
-}
-
-// Build a tree structure from a flat array of folder paths.
-function buildFolderTree(folders) {
-  const tree = {};
-  folders.forEach(folderPath => {
-    // Ensure folderPath is a string
-    if (typeof folderPath !== "string") return;
-    const parts = folderPath.split('/');
-    let current = tree;
-    parts.forEach(part => {
-      if (!current[part]) {
-        current[part] = {};
-      }
-      current = current[part];
-    });
-  });
-  return tree;
-}
-
-// ----------------------
-// Folder Tree State (Save/Load)
-// ----------------------
-function loadFolderTreeState() {
-  const state = localStorage.getItem("folderTreeState");
-  return state ? JSON.parse(state) : {};
-}
-
-function saveFolderTreeState(state) {
-  localStorage.setItem("folderTreeState", JSON.stringify(state));
-}
-
-// Helper for getting the parent folder.
-function getParentFolder(folder) {
-  if (folder === "root") return "root";
-  const lastSlash = folder.lastIndexOf("/");
-  return lastSlash === -1 ? "root" : folder.substring(0, lastSlash);
-}
-
-// ----------------------
-// DOM Building Functions
-// ----------------------
-
-// Recursively builds HTML for the folder tree as nested <ul> elements.
-function renderFolderTree(tree, parentPath = "", defaultDisplay = "block") {
-  const state = loadFolderTreeState();
-  let html = `<ul class="folder-tree ${defaultDisplay === 'none' ? 'collapsed' : 'expanded'}">`;
-  for (const folder in tree) {
-    // Skip the trash folder (case-insensitive)
-    if (folder.toLowerCase() === "trash") {
-      continue;
-    }
-    
-    const fullPath = parentPath ? parentPath + "/" + folder : folder;
-    const hasChildren = Object.keys(tree[folder]).length > 0;
-    const displayState = state[fullPath] !== undefined ? state[fullPath] : defaultDisplay;
-    html += `<li class="folder-item">`;
-    if (hasChildren) {
-      const toggleSymbol = (displayState === "none") ? "[+]" : "[-]";
-      html += `<span class="folder-toggle" data-folder="${fullPath}">${toggleSymbol}</span>`;
-    } else {
-      html += `<span class="folder-indent-placeholder"></span>`;
-    }
-    // Use escapeHTML to safely render the folder name.
-    html += `<span class="folder-option" data-folder="${fullPath}">${escapeHTML(folder)}</span>`;
-    if (hasChildren) {
-      html += renderFolderTree(tree[folder], fullPath, displayState);
-    }
-    html += `</li>`;
-  }
-  html += `</ul>`;
-  return html;
-}
-
-// Expands the folder tree along a given path.
-function expandTreePath(path) {
-  const parts = path.split("/");
-  let cumulative = "";
-  parts.forEach((part, index) => {
-    cumulative = index === 0 ? part : cumulative + "/" + part;
-    const option = document.querySelector(`.folder-option[data-folder="${cumulative}"]`);
-    if (option) {
-      const li = option.parentNode;
-      const nestedUl = li.querySelector("ul");
-      if (nestedUl && (nestedUl.classList.contains("collapsed") || !nestedUl.classList.contains("expanded"))) {
-        nestedUl.classList.remove("collapsed");
-        nestedUl.classList.add("expanded");
-        const toggle = li.querySelector(".folder-toggle");
-        if (toggle) {
-          toggle.textContent = "[-]";
-          let state = loadFolderTreeState();
-          state[cumulative] = "block";
-          saveFolderTreeState(state);
-        }
-      }
-    }
-  });
-}
-
-// ----------------------
-// Drag & Drop Support for Folder Tree Nodes
-// ----------------------
-
-// When a draggable file is dragged over a folder node, allow the drop and add a visual cue.
-function folderDragOverHandler(event) {
-  event.preventDefault();
-  event.currentTarget.classList.add("drop-hover");
-}
-
-// Remove the visual cue when the drag leaves.
-function folderDragLeaveHandler(event) {
-  event.currentTarget.classList.remove("drop-hover");
-}
-
-// When a file is dropped onto a folder node, send a move request.
-function folderDropHandler(event) {
-  event.preventDefault();
-  event.currentTarget.classList.remove("drop-hover");
-  const dropFolder = event.currentTarget.getAttribute("data-folder");
-  let dragData;
-  try {
-    dragData = JSON.parse(event.dataTransfer.getData("application/json"));
-  } catch (e) {
-    console.error("Invalid drag data");
-    return;
-  }
-  // Use the files array if present, or fall back to a single file.
-  const filesToMove = dragData.files ? dragData.files : (dragData.fileName ? [dragData.fileName] : []);
-  if (filesToMove.length === 0) return;
-  fetch("moveFiles.php", {
-    method: "POST",
-    credentials: "include",
-    headers: {
-      "Content-Type": "application/json",
-      "X-CSRF-Token": document.querySelector('meta[name="csrf-token"]').getAttribute("content")
-    },
-    body: JSON.stringify({
-      source: dragData.sourceFolder,
-      files: filesToMove,
-      destination: dropFolder
-    })
-  })
-    .then(response => response.json())
-    .then(data => {
-      if (data.success) {
-        showToast(`File(s) moved successfully to ${dropFolder}!`);
-        loadFileList(dragData.sourceFolder);
-      } else {
-        showToast("Error moving files: " + (data.error || "Unknown error"));
-      }
-    })
-    .catch(error => {
-      console.error("Error moving files via drop:", error);
-      showToast("Error moving files.");
-    });
-}
-
-// ----------------------
-// Main Folder Tree Rendering and Event Binding
-// ----------------------
-export async function loadFolderTree(selectedFolder) {
-  try {
-    const response = await fetch('getFolderList.php');
-    if (response.status === 401) {
-      console.error("Unauthorized: Please log in to view folders.");
-      showToast("Session expired. Please log in again.");
-      window.location.href = "logout.php";
-      return;
-    }
-    let folders = await response.json();
-
-    // If returned items are objects (with a "folder" property), extract folder paths.
-    if (Array.isArray(folders) && folders.length && typeof folders[0] === "object" && folders[0].folder) {
-      folders = folders.map(item => item.folder);
-    }
-    // Filter out duplicate "root" entries if present.
-    folders = folders.filter(folder => folder !== "root");
-
-    if (!Array.isArray(folders)) {
-      console.error("Folder list response is not an array:", folders);
-      return;
-    }
-
-    const container = document.getElementById("folderTreeContainer");
-    if (!container) {
-      console.error("Folder tree container not found.");
-      return;
-    }
-
-    let html = `<div id="rootRow" class="root-row">
-                  <span class="folder-toggle" data-folder="root">[-]</span>
-                  <span class="folder-option root-folder-option" data-folder="root">(Root)</span>
-                </div>`;
-    if (folders.length === 0) {
-      html += `<ul class="folder-tree expanded">
-                 <li class="folder-item">
-                   <span class="folder-option" data-folder="root">(Root)</span>
-                 </li>
-               </ul>`;
-    } else {
-      const tree = buildFolderTree(folders);
-      html += renderFolderTree(tree, "", "block");
-    }
-    container.innerHTML = html;
-
-    // Attach drag-and-drop event listeners to folder nodes.
-    container.querySelectorAll(".folder-option").forEach(el => {
-      el.addEventListener("dragover", folderDragOverHandler);
-      el.addEventListener("dragleave", folderDragLeaveHandler);
-      el.addEventListener("drop", folderDropHandler);
-    });
-
-    // Determine current folder.
-    if (selectedFolder) {
-      window.currentFolder = selectedFolder;
-    } else {
-      window.currentFolder = localStorage.getItem("lastOpenedFolder") || "root";
-    }
-    localStorage.setItem("lastOpenedFolder", window.currentFolder);
-    document.getElementById("fileListTitle").textContent =
-      window.currentFolder === "root" ? "Files in (Root)" : "Files in (" + window.currentFolder + ")";
-    loadFileList(window.currentFolder);
-
-    // Expand tree to current folder.
-    const folderState = loadFolderTreeState();
-    if (window.currentFolder !== "root" && folderState[window.currentFolder] !== "none") {
-      expandTreePath(window.currentFolder);
-    }
-
-    // Highlight current folder.
-    const selectedEl = container.querySelector(`.folder-option[data-folder="${window.currentFolder}"]`);
-    if (selectedEl) {
-      selectedEl.classList.add("selected");
-    }
-
-    // Event binding for folder selection.
-    container.querySelectorAll(".folder-option").forEach(el => {
-      el.addEventListener("click", function (e) {
-        e.stopPropagation();
-        container.querySelectorAll(".folder-option").forEach(item => item.classList.remove("selected"));
-        this.classList.add("selected");
-        const selected = this.getAttribute("data-folder");
-        window.currentFolder = selected;
-        localStorage.setItem("lastOpenedFolder", selected);
-        document.getElementById("fileListTitle").textContent =
-          selected === "root" ? "Files in (Root)" : "Files in (" + selected + ")";
-        loadFileList(selected);
-      });
-    });
-
-    // Event binding for toggling folders.
-    const rootToggle = container.querySelector("#rootRow .folder-toggle");
-    if (rootToggle) {
-      rootToggle.addEventListener("click", function (e) {
-        e.stopPropagation();
-        const nestedUl = container.querySelector("#rootRow + ul");
-        if (nestedUl) {
-          let state = loadFolderTreeState();
-          if (nestedUl.classList.contains("collapsed") || !nestedUl.classList.contains("expanded")) {
-            nestedUl.classList.remove("collapsed");
-            nestedUl.classList.add("expanded");
-            this.textContent = "[-]";
-            state["root"] = "block";
-          } else {
-            nestedUl.classList.remove("expanded");
-            nestedUl.classList.add("collapsed");
-            this.textContent = "[+]";
-            state["root"] = "none";
-          }
-          saveFolderTreeState(state);
-        }
-      });
-    }
-
-    container.querySelectorAll(".folder-toggle").forEach(toggle => {
-      toggle.addEventListener("click", function (e) {
-        e.stopPropagation();
-        const siblingUl = this.parentNode.querySelector("ul");
-        const folderPath = this.getAttribute("data-folder");
-        let state = loadFolderTreeState();
-        if (siblingUl) {
-          if (siblingUl.classList.contains("collapsed") || !siblingUl.classList.contains("expanded")) {
-            siblingUl.classList.remove("collapsed");
-            siblingUl.classList.add("expanded");
-            this.textContent = "[-]";
-            state[folderPath] = "block";
-          } else {
-            siblingUl.classList.remove("expanded");
-            siblingUl.classList.add("collapsed");
-            this.textContent = "[+]";
-            state[folderPath] = "none";
-          }
-          saveFolderTreeState(state);
-        }
-      });
-    });
-
-  } catch (error) {
-    console.error("Error loading folder tree:", error);
-  }
-}
-
-// For backward compatibility.
-export function loadFolderList(selectedFolder) {
-  loadFolderTree(selectedFolder);
-}
-
-// ----------------------
-// Folder Management (Rename, Delete, Create)
-// ----------------------
-
-document.getElementById("renameFolderBtn").addEventListener("click", openRenameFolderModal);
-document.getElementById("deleteFolderBtn").addEventListener("click", openDeleteFolderModal);
-
-function openRenameFolderModal() {
-  const selectedFolder = window.currentFolder || "root";
-  if (!selectedFolder || selectedFolder === "root") {
-    showToast("Please select a valid folder to rename.");
-    return;
-  }
-  const parts = selectedFolder.split("/");
-  document.getElementById("newRenameFolderName").value = parts[parts.length - 1];
-  document.getElementById("renameFolderModal").style.display = "block";
-}
-
-document.getElementById("cancelRenameFolder").addEventListener("click", function () {
-  document.getElementById("renameFolderModal").style.display = "none";
-  document.getElementById("newRenameFolderName").value = "";
-});
-
-document.getElementById("submitRenameFolder").addEventListener("click", function (event) {
-  event.preventDefault();
-  const selectedFolder = window.currentFolder || "root";
-  const newNameBasename = document.getElementById("newRenameFolderName").value.trim();
-  if (!newNameBasename || newNameBasename === selectedFolder.split("/").pop()) {
-    showToast("Please enter a valid new folder name.");
-    return;
-  }
-  const parentPath = getParentFolder(selectedFolder);
-  const newFolderFull = parentPath === "root" ? newNameBasename : parentPath + "/" + newNameBasename;
-  const csrfToken = document.querySelector('meta[name="csrf-token"]').getAttribute('content');
-  if (!csrfToken) {
-    showToast("CSRF token not loaded yet! Please try again.");
-    return;
-  }
-  fetch("renameFolder.php", {
-    method: "POST",
-    credentials: "include",
-    headers: {
-      "Content-Type": "application/json",
-      "X-CSRF-Token": csrfToken
-    },
-    body: JSON.stringify({ oldFolder: window.currentFolder, newFolder: newFolderFull })
-  })
-    .then(response => response.json())
-    .then(data => {
-      if (data.success) {
-        showToast("Folder renamed successfully!");
-        window.currentFolder = newFolderFull;
-        localStorage.setItem("lastOpenedFolder", newFolderFull);
-        loadFolderList(newFolderFull);
-      } else {
-        showToast("Error: " + (data.error || "Could not rename folder"));
-      }
-    })
-    .catch(error => console.error("Error renaming folder:", error))
-    .finally(() => {
-      document.getElementById("renameFolderModal").style.display = "none";
-      document.getElementById("newRenameFolderName").value = "";
-    });
-});
-
-function openDeleteFolderModal() {
-  const selectedFolder = window.currentFolder || "root";
-  if (!selectedFolder || selectedFolder === "root") {
-    showToast("Please select a valid folder to delete.");
-    return;
-  }
-  document.getElementById("deleteFolderMessage").textContent =
-    "Are you sure you want to delete folder " + selectedFolder + "?";
-  document.getElementById("deleteFolderModal").style.display = "block";
-}
-
-document.getElementById("cancelDeleteFolder").addEventListener("click", function () {
-  document.getElementById("deleteFolderModal").style.display = "none";
-});
-
-document.getElementById("confirmDeleteFolder").addEventListener("click", function () {
-  const selectedFolder = window.currentFolder || "root";
-  const csrfToken = document.querySelector('meta[name="csrf-token"]').getAttribute('content');
-  fetch("deleteFolder.php", {
-    method: "POST",
-    headers: {
-      "Content-Type": "application/json",
-      "X-CSRF-Token": csrfToken
-    },
-    body: JSON.stringify({ folder: selectedFolder })
-  })
-    .then(response => response.json())
-    .then(data => {
-      if (data.success) {
-        showToast("Folder deleted successfully!");
-        window.currentFolder = getParentFolder(selectedFolder);
-        localStorage.setItem("lastOpenedFolder", window.currentFolder);
-        loadFolderList(window.currentFolder);
-      } else {
-        showToast("Error: " + (data.error || "Could not delete folder"));
-      }
-    })
-    .catch(error => console.error("Error deleting folder:", error))
-    .finally(() => {
-      document.getElementById("deleteFolderModal").style.display = "none";
-    });
-});
-
-document.getElementById("createFolderBtn").addEventListener("click", function () {
-  document.getElementById("createFolderModal").style.display = "block";
-});
-
-document.getElementById("cancelCreateFolder").addEventListener("click", function () {
-  document.getElementById("createFolderModal").style.display = "none";
-  document.getElementById("newFolderName").value = "";
-});
-
-document.getElementById("submitCreateFolder").addEventListener("click", function () {
-  const folderInput = document.getElementById("newFolderName").value.trim();
-  if (!folderInput) {
-    showToast("Please enter a folder name.");
-    return;
-  }
-  let selectedFolder = window.currentFolder || "root";
-  let fullFolderName = folderInput;
-  if (selectedFolder && selectedFolder !== "root") {
-    fullFolderName = selectedFolder + "/" + folderInput;
-  }
-  const csrfToken = document.querySelector('meta[name="csrf-token"]').getAttribute('content');
-  fetch("createFolder.php", {
-    method: "POST",
-    headers: {
-      "Content-Type": "application/json",
-      "X-CSRF-Token": csrfToken
-    },
-    body: JSON.stringify({
-      folderName: folderInput,
-      parent: selectedFolder === "root" ? "" : selectedFolder
-    })
-  })
-    .then(response => response.json())
-    .then(data => {
-      if (data.success) {
-        showToast("Folder created successfully!");
-        window.currentFolder = fullFolderName;
-        localStorage.setItem("lastOpenedFolder", fullFolderName);
-        loadFolderList(fullFolderName);
-      } else {
-        showToast("Error: " + (data.error || "Could not create folder"));
-      }
-      document.getElementById("createFolderModal").style.display = "none";
-      document.getElementById("newFolderName").value = "";
-    })
-    .catch(error => {
-      console.error("Error creating folder:", error);
-      document.getElementById("createFolderModal").style.display = "none";
-    });
-});

getConfig.php

@@ -0,0 +1,36 @@
+<?php
+require_once 'config.php';
+header('Content-Type: application/json');
+
+$configFile = USERS_DIR . 'adminConfig.json';
+if (file_exists($configFile)) {
+    $encryptedContent = file_get_contents($configFile);
+    $decryptedContent = decryptData($encryptedContent, $encryptionKey);
+    if ($decryptedContent === false) {
+        http_response_code(500);
+        echo json_encode(['error' => 'Failed to decrypt configuration.']);
+        exit;
+    }
+    // Decode the configuration and ensure globalOtpauthUrl is set
+    $config = json_decode($decryptedContent, true);
+    if (!isset($config['globalOtpauthUrl'])) {
+        $config['globalOtpauthUrl'] = "";
+    }
+    echo json_encode($config);
+} else {
+    echo json_encode([
+        'oidc' => [
+            'providerUrl'  => 'https://your-oidc-provider.com',
+            'clientId'     => 'YOUR_CLIENT_ID',
+            'clientSecret' => 'YOUR_CLIENT_SECRET',
+            'redirectUri'  => 'https://yourdomain.com/auth.php?oidc=callback'
+        ],
+        'loginOptions' => [
+            'disableFormLogin' => false,
+            'disableBasicAuth' => false,
+            'disableOIDCLogin' => false
+        ],
+        'globalOtpauthUrl' => ""
+    ]);
+}
+?>

getFileList.php

@@ -93,9 +93,14 @@ foreach ($files as $file) {
         'modified' => $fileDateModified,
         'uploaded' => $fileUploadedDate,
         'size' => $fileSizeFormatted,
-        'uploader' => $fileUploader
+        'uploader' => $fileUploader,
+        'tags' => isset($metadata[$metaKey]['tags']) ? $metadata[$metaKey]['tags'] : []
     ];
 }
 
-echo json_encode(["files" => $fileList]);
+// Load global tags from createdTags.json.
+$globalTagsFile = META_DIR . "createdTags.json";
+$globalTags = file_exists($globalTagsFile) ? json_decode(file_get_contents($globalTagsFile), true) : [];
+
+echo json_encode(["files" => $fileList, "globalTags" => $globalTags]);
 ?>

getFolderList.php

@@ -1,5 +1,5 @@
 <?php
-require 'config.php';
+require_once 'config.php';
 header('Content-Type: application/json');
 
 // Ensure user is authenticated

getUserPermissions.php

@@ -0,0 +1,47 @@
+<?php
+require_once 'config.php';
+header('Content-Type: application/json');
+
+// Check if the user is authenticated.
+if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
+    echo json_encode(["error" => "Unauthorized"]);
+    exit;
+}
+
+$permissionsFile = USERS_DIR . "userPermissions.json";
+$permissionsArray = [];
+
+// Load permissions file if it exists.
+if (file_exists($permissionsFile)) {
+    $content = file_get_contents($permissionsFile);
+    // Attempt to decrypt the content.
+    $decryptedContent = decryptData($content, $encryptionKey);
+    if ($decryptedContent === false) {
+        // If decryption fails, assume the file is plain JSON.
+        $permissionsArray = json_decode($content, true);
+    } else {
+        $permissionsArray = json_decode($decryptedContent, true);
+    }
+    if (!is_array($permissionsArray)) {
+        $permissionsArray = [];
+    }
+}
+
+// If the user is an admin, return all permissions.
+if (isset($_SESSION['isAdmin']) && $_SESSION['isAdmin'] === true) {
+    echo json_encode($permissionsArray);
+    exit;
+}
+
+// Otherwise, return only the current user's permissions.
+$username = $_SESSION['username'] ?? '';
+foreach ($permissionsArray as $storedUsername => $data) {
+    if (strcasecmp($storedUsername, $username) === 0) {
+        echo json_encode($data);
+        exit;
+    }
+}
+
+// If no permissions are found for the current user, return an empty object.
+echo json_encode(new stdClass());
+?>

getUsers.php

@@ -1,24 +1,31 @@
 <?php
-require 'config.php';
+require_once 'config.php';
 header('Content-Type: application/json');
+
 if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true ||
     !isset($_SESSION['isAdmin']) || $_SESSION['isAdmin'] !== true) {
     echo json_encode(["error" => "Unauthorized"]);
     exit;
 }
+
 $usersFile = USERS_DIR . USERS_FILE;
 $users = [];
+
 if (file_exists($usersFile)) {
     $lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
     foreach ($lines as $line) {
         $parts = explode(':', trim($line));
         if (count($parts) >= 3) {
-            // Optionally, validate username format:
+            // Validate username format:
             if (preg_match('/^[A-Za-z0-9_\- ]+$/', $parts[0])) {
-                $users[] = ["username" => $parts[0]];
+                $users[] = [
+                    "username" => $parts[0],
+                    "role" => trim($parts[2])
+                ];
             }
         }
     }
 }
+
 echo json_encode($users);
-?>
+?>

index.html

@@ -4,7 +4,14 @@
 <head>
   <meta charset="UTF-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1" />
-  <title>Multi File Upload Editor</title>
+  <title data-i18n-key="title">FileRise</title>
+  <script>
+    const params = new URLSearchParams(window.location.search);
+    if (params.get('logout') === '1') {
+      localStorage.removeItem("username");
+      localStorage.removeItem("userTOTPEnabled");
+    }
+  </script>
   <link rel="icon" type="image/png" href="/assets/logo.png">
   <link rel="icon" type="image/svg+xml" href="/assets/logo.svg">
   <meta name="csrf-token" content="">
@@ -16,11 +23,25 @@
   <link href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" rel="stylesheet" />
   <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.5/codemirror.min.css" />
   <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.5/theme/material-darker.min.css">
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.5/codemirror.min.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.5/mode/xml/xml.min.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.5/mode/css/css.min.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.5/mode/javascript/javascript.min.js"></script>
-  <link rel="stylesheet" href="styles.css" />
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.5/codemirror.min.js"
+    integrity="sha384-UXbkZAbZYZ/KCAslc6UO4d6UHNKsOxZ/sqROSQaPTZCuEIKhfbhmffQ64uXFOcma"
+    crossorigin="anonymous"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.5/mode/xml/xml.min.js"
+    integrity="sha384-xPpkMo5nDgD98fIcuRVYhxkZV6/9Y4L8s3p0J5c4MxgJkyKJ8BJr+xfRkq7kn6Tw"
+    crossorigin="anonymous"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.5/mode/css/css.min.js"
+    integrity="sha384-to8njsu2GAiXQnY/aLGzz0DIY/SFSeSDodtvSl869n2NmsBdHOTZNNqbEBPYh7Pa"
+    crossorigin="anonymous"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.5/mode/javascript/javascript.min.js"
+    integrity="sha384-kmQrbJf09Uo1WRLMDVGoVG3nM6F48frIhcj7f3FDUjeRzsiHwyBWDjMUIttnIeAf"
+    crossorigin="anonymous"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/resumable.js/1.1.0/resumable.min.js"
+    integrity="sha384-EXTg7rRfdTPZWoKVCslusAAev2TYw76fm+Wox718iEtFQ+gdAdAc5Z/ndLHSo4mq"
+    crossorigin="anonymous"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/dompurify/2.4.0/purify.min.js"
+    integrity="sha384-Tsl3d5pUAO7a13enIvSsL3O0/95nsthPJiPto5NtLuY8w3+LbZOpr3Fl2MNmrh1E"
+    crossorigin="anonymous"></script>
+  <link rel="stylesheet" href="css/styles.css" />
 </head>
 
 <body>
@@ -35,9 +56,15 @@
               <stop offset="0%" style="stop-color:#2196F3;stop-opacity:1" />
               <stop offset="100%" style="stop-color:#1976D2;stop-opacity:1" />
             </linearGradient>
-            <!-- Drop shadow filter -->
+            <!-- Drop shadow filter with animated attributes for a lifting effect -->
             <filter id="shadowFilter" x="-20%" y="-20%" width="140%" height="140%">
-              <feDropShadow dx="0" dy="2" stdDeviation="2" flood-color="#000" flood-opacity="0.2" />
+              <feDropShadow id="dropShadow" dx="0" dy="2" stdDeviation="2" flood-color="#000" flood-opacity="0.2">
+                <!-- Animate the vertical offset: from 2 to 1 (as it rises), hold, then back to 2 -->
+                <animate attributeName="dy" values="2;1;1;2" keyTimes="0;0.2;0.8;1" dur="5s" fill="freeze" />
+                <!-- Animate the blur similarly: from 2 to 1.5 then back to 2 -->
+                <animate attributeName="stdDeviation" values="2;1.5;1.5;2" keyTimes="0;0.2;0.8;1" dur="5s"
+                  fill="freeze" />
+              </feDropShadow>
             </filter>
           </defs>
           <style type="text/css">
@@ -61,314 +88,391 @@
               fill: #1565C0;
             }
           </style>
-          <!-- Cabinet Body with rounded corners, white outline, and drop shadow -->
-          <rect x="4" y="4" width="56" height="56" rx="6" ry="6" class="cabinet" filter="url(#shadowFilter)" />
-          <!-- Divider lines for drawers -->
-          <line x1="5" y1="22" x2="59" y2="22" class="divider" />
-          <line x1="5" y1="34" x2="59" y2="34" class="divider" />
-          <!-- Drawers with Handles -->
-          <rect x="8" y="24" width="48" height="6" rx="1" ry="1" class="drawer" />
-          <circle cx="54" cy="27" r="1.5" class="handle" />
-
-          <rect x="8" y="36" width="48" height="6" rx="1" ry="1" class="drawer" />
-          <circle cx="54" cy="39" r="1.5" class="handle" />
-
-          <rect x="8" y="48" width="48" height="6" rx="1" ry="1" class="drawer" />
-          <circle cx="54" cy="51" r="1.5" class="handle" />
-
-          <!-- Additional detail: a small top handle on the cabinet door -->
-          <rect x="28" y="10" width="8" height="4" rx="1" ry="1" fill="#1565C0" />
+          <!-- Group that will animate upward and then back down once -->
+          <g id="cabinetGroup">
+            <!-- Cabinet Body with rounded corners, white outline, and drop shadow -->
+            <rect x="4" y="4" width="56" height="56" rx="6" ry="6" class="cabinet" filter="url(#shadowFilter)" />
+            <!-- Divider lines for drawers -->
+            <line x1="5" y1="22" x2="59" y2="22" class="divider" />
+            <line x1="5" y1="34" x2="59" y2="34" class="divider" />
+            <!-- Drawers with Handles -->
+            <rect x="8" y="24" width="48" height="6" rx="1" ry="1" class="drawer" />
+            <circle cx="54" cy="27" r="1.5" class="handle" />
+            <rect x="8" y="36" width="48" height="6" rx="1" ry="1" class="drawer" />
+            <circle cx="54" cy="39" r="1.5" class="handle" />
+            <rect x="8" y="48" width="48" height="6" rx="1" ry="1" class="drawer" />
+            <circle cx="54" cy="51" r="1.5" class="handle" />
+            <!-- Additional detail: a small top handle on the cabinet door -->
+            <rect x="28" y="10" width="8" height="4" rx="1" ry="1" fill="#1565C0" />
+            <!-- Animate transform: rises by 2 pixels over 1s, holds for 3s, then falls over 1s (total 5s) -->
+            <animateTransform attributeName="transform" type="translate" values="0 0; 0 -2; 0 -2; 0 0"
+              keyTimes="0;0.2;0.8;1" dur="5s" fill="freeze" />
+          </g>
         </svg>
       </div>
     </div>
-
     <div class="header-title">
-      <h1>Multi File Upload Editor</h1>
+      <h1 data-i18n-key="header_title">FileRise</h1>
     </div>
-
     <div class="header-right">
-      <div class="header-buttons">
-        <button id="logoutBtn" title="Logout">
-          <i class="material-icons">exit_to_app</i>
-        </button>
-        <!-- Restore Files Modal (Admin Only) -->
-        <div id="restoreFilesModal" class="modal centered-modal" style="display: none;">
-          <div class="modal-content">
-            <h4 class="custom-restore-header">
-              <i class="material-icons orange-icon">restore_from_trash</i>
-              <span>Restore or</span>
-              <i class="material-icons red-icon">delete_for_ever</i>
-              <span>Delete Trash Items</span>
-            </h4>
-            <div id="restoreFilesList"
-              style="max-height:300px; overflow-y:auto; border:1px solid #ccc; padding:10px; margin-bottom:10px;">
-              <!-- Trash items will be loaded here -->
-            </div>
-            <div style="text-align: right;">
-              <button id="restoreSelectedBtn" class="btn btn-primary">Restore Selected</button>
-              <button id="restoreAllBtn" class="btn btn-secondary">Restore All</button>
-              <button id="deleteTrashSelectedBtn" class="btn btn-warning">Delete Selected</button>
-              <button id="deleteAllBtn" class="btn btn-danger">Delete All</button>
-              <button id="closeRestoreModal" class="btn btn-dark">Close</button>
+      <div class="header-buttons-wrapper" style="display: flex; align-items: center; gap: 10px;">
+        <!-- Your header drop zone -->
+        <div id="headerDropArea" class="header-drop-zone"></div>
+        <div class="header-buttons">
+          <button id="logoutBtn" data-i18n-title="logout">
+            <i class="material-icons">exit_to_app</i>
+          </button>
+          <button id="changePasswordBtn" data-i18n-title="change_password" style="display: none;">
+            <i class="material-icons">vpn_key</i>
+          </button>
+          <div id="restoreFilesModal" class="modal centered-modal" style="display: none;">
+            <div class="modal-content">
+              <h4 class="custom-restore-header">
+                <i class="material-icons orange-icon">restore_from_trash</i>
+                <span data-i18n-key="restore_text">Restore or</span>
+                <i class="material-icons red-icon">delete_for_ever</i>
+                <span data-i18n-key="delete_text">Delete Trash Items</span>
+              </h4>
+              <div id="restoreFilesList"
+                style="max-height:300px; overflow-y:auto; border:1px solid #ccc; padding:10px; margin-bottom:10px;">
+                <!-- Trash items will be loaded here -->
+              </div>
+              <div style="text-align: right;">
+                <button id="restoreSelectedBtn" class="btn btn-primary" data-i18n-key="restore_selected">Restore
+                  Selected</button>
+                <button id="restoreAllBtn" class="btn btn-secondary" data-i18n-key="restore_all">Restore All</button>
+                <button id="deleteTrashSelectedBtn" class="btn btn-warning" data-i18n-key="delete_selected_trash">Delete
+                  Selected</button>
+                <button id="deleteAllBtn" class="btn btn-danger" data-i18n-key="delete_all">Delete All</button>
+                <button id="closeRestoreModal" class="btn btn-dark" data-i18n-key="close">Close</button>
+              </div>
             </div>
           </div>
+          <button id="addUserBtn" data-i18n-title="add_user" style="display: none;">
+            <i class="material-icons">person_add</i>
+          </button>
+          <button id="removeUserBtn" data-i18n-title="remove_user" style="display: none;">
+            <i class="material-icons">person_remove</i>
+          </button>
+          <button id="darkModeToggle" class="dark-mode-toggle" data-i18n-key="dark_mode_toggle">Dark Mode</button>
         </div>
-        <button id="addUserBtn" title="Add User">
-          <i class="material-icons">person_add</i>
-        </button>
-        <button id="removeUserBtn" title="Remove User">
-          <i class="material-icons">person_remove</i>
-        </button>
-        <button id="darkModeToggle" class="dark-mode-toggle">Dark Mode</button>
       </div>
     </div>
   </header>
 
   <!-- Custom Toast Container -->
   <div id="customToast"></div>
-  <div class="container-fluid">
-    <!-- Login Form -->
-    <div class="row" id="loginForm">
-      <div class="col-12">
-        <form id="authForm" method="post">
-          <div class="form-group">
-            <label for="loginUsername">User:</label>
-            <input type="text" class="form-control" id="loginUsername" name="username" required />
-          </div>
-          <div class="form-group">
-            <label for="loginPassword">Password:</label>
-            <input type="password" class="form-control" id="loginPassword" name="password" required />
-          </div>
-          <button type="submit" class="btn btn-primary btn-block btn-login">Login</button>
-        </form>
-      </div>
-    </div>
+  <div id="hiddenCardsContainer" style="display:none;"></div>
 
-    <!-- Main Operations: Upload and Folder Management -->
-    <div id="mainOperations">
-      <div class="container" style="max-width: 1400px; margin: 0 auto;">
-        <div class="row align-items-start" id="uploadFolderRow">
-          <!-- Upload Card: 50% width on medium, 58% on large -->
-          <div class="col-md-6 col-lg-7 d-flex">
-            <div id="uploadCard" class="card flex-fill" style="max-width: 900px; width: 100%;">
-              <div class="card-header">Upload Files/Folders</div>
-              <div class="card-body d-flex flex-column">
-                <form id="uploadFileForm" method="post" enctype="multipart/form-data" class="d-flex flex-column"
-                  style="height: 100%;">
-                  <div class="form-group flex-grow-1" style="margin-bottom: 1rem;">
-                    <div id="uploadDropArea"
-                      style="border:2px dashed #ccc; padding:20px; cursor:pointer; height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: center;">
-                      <span>Drop files/folders here or click 'Choose files'</span>
-                      <br />
-                      <input type="file" id="file" name="file[]" class="form-control-file" multiple required
-                        webkitdirectory directory mozdirectory style="opacity:0; position:absolute; z-index:-1;" />
-                      <button type="button" onclick="document.getElementById('file').click();">Choose Folder</button>
-                    </div>
-                  </div>
-                  <button type="submit" id="uploadBtn" class="btn btn-primary d-block mx-auto">Upload</button>
-                  <div id="uploadProgressContainer"></div>
-                </form>
+  <!-- Main Wrapper: Hidden by default; remove "display: none;" after login -->
+  <div class="main-wrapper">
+    <!-- Sidebar Drop Zone: Hidden until you drag a card (display controlled by JS) -->
+    <div id="sidebarDropArea" class="drop-target-sidebar"></div>
+    <!-- Main Column -->
+    <div id="mainColumn" class="main-column">
+      <div class="container-fluid">
+        <!-- Login Form (unchanged) -->
+        <div class="row" id="loginForm">
+          <div class="col-12">
+            <form id="authForm" method="post">
+              <div class="form-group">
+                <label for="loginUsername" data-i18n-key="user">User:</label>
+                <input type="text" class="form-control" id="loginUsername" name="username" required />
               </div>
+              <div class="form-group">
+                <label for="loginPassword" data-i18n-key="password">Password:</label>
+                <input type="password" class="form-control" id="loginPassword" name="password" required />
+              </div>
+              <button type="submit" class="btn btn-primary btn-block btn-login" data-i18n-key="login">Login</button>
+              <div class="form-group remember-me-container">
+                <input type="checkbox" id="rememberMeCheckbox" name="remember_me" />
+                <label for="rememberMeCheckbox" data-i18n-key="remember_me">Remember me</label>
+              </div>
+            </form>
+            <!-- OIDC Login Option -->
+            <div class="text-center mt-3">
+              <button id="oidcLoginBtn" class="btn btn-secondary" data-i18n-key="login_oidc">Login with OIDC</button>
+            </div>
+            <!-- Basic HTTP Login Option -->
+            <div class="text-center mt-3">
+              <a href="login_basic.php" class="btn btn-secondary" data-i18n-key="basic_http_login">Use Basic HTTP
+                Login</a>
             </div>
           </div>
+        </div>
 
-          <!-- Folder Management Card -->
-          <div class="col-md-6 col-lg-5 d-flex">
-            <div id="folderManagementCard" class="card flex-fill" style="max-width: 900px; width: 100%; position: relative;">
-              <!-- Card header with folder management title and help icon -->
-              <div class="card-header" style="display: flex; justify-content: space-between; align-items: center;">
-                <span>Folder Navigation &amp; Management</span>
-                <button id="folderHelpBtn" class="btn btn-link" title="Folder Help"
-                  style="padding: 0; border: none; background: none;">
-                  <i class="material-icons folder-help-icon" style="font-size: 24px;">info</i>
-                </button>
+        <!-- Main Operations: Upload and Folder Management -->
+        <div id="mainOperations">
+          <div class="container" style="max-width: 1400px; margin: 0 auto;">
+            <!-- Top Zone: Two columns (60% and 40%) -->
+            <div id="uploadFolderRow" class="row">
+              <!-- Left Column (60% for Upload Card) -->
+              <div id="leftCol" class="col-md-7" style="display: flex; justify-content: center;">
+                <div id="uploadCard" class="card" style="width: 100%;">
+                  <div class="card-header" data-i18n-key="upload_header">Upload Files/Folders</div>
+                  <div class="card-body d-flex flex-column">
+                    <form id="uploadFileForm" method="post" enctype="multipart/form-data" class="d-flex flex-column">
+                      <div class="form-group flex-grow-1" style="margin-bottom: 1rem;">
+                        <div id="uploadDropArea"
+                          style="border:2px dashed #ccc; padding:20px; cursor:pointer; display:flex; flex-direction:column; justify-content:center; align-items:center; position:relative;">
+                          <span data-i18n-key="upload_instruction">Drop files/folders here or click 'Choose
+                            Files'</span>
+                          <br />
+                          <input type="file" id="file" name="file[]" class="form-control-file" multiple
+                            style="opacity:0; position:absolute; width:1px; height:1px;" />
+                          <button type="button" id="customChooseBtn" data-i18n-key="choose_files">Choose Files</button>
+                        </div>
+                      </div>
+                      <button type="submit" id="uploadBtn" class="btn btn-primary d-block mx-auto"
+                        data-i18n-key="upload">Upload</button>
+                      <div id="uploadProgressContainer"></div>
+                    </form>
+                  </div>
+                </div>
               </div>
-              <div class="card-body custom-folder-card-body">
-                <div class="form-group d-flex align-items-top" style="padding-top:0; margin-bottom:0;">
-                  <div id="folderTreeContainer"></div>
-                </div>
-                <!-- Folder actions (create, rename, delete) -->
-                <div class="folder-actions mt-3">
-                  <button id="createFolderBtn" class="btn btn-primary">Create Folder</button>
-                  <!-- Create Folder Modal -->
-                  <div id="createFolderModal" class="modal">
-                    <div class="modal-content">
-                      <h4>Create Folder</h4>
-                      <input type="text" id="newFolderName" class="form-control" placeholder="Enter folder name"
-                        style="margin-top:10px;" />
-                      <div style="margin-top:15px; text-align:right;">
-                        <button id="cancelCreateFolder" class="btn btn-secondary">Cancel</button>
-                        <button id="submitCreateFolder" class="btn btn-primary">Create</button>
+              <!-- Right Column (40% for Folder Management Card) -->
+              <div id="rightCol" class="col-md-5" style="display: flex; justify-content: center;">
+                <div id="folderManagementCard" class="card" style="width: 100%; position: relative;">
+                  <div class="card-header" style="display: flex; justify-content: space-between; align-items: center;">
+                    <span data-i18n-key="folder_navigation">Folder Navigation &amp; Management</span>
+                    <button id="folderHelpBtn" class="btn btn-link" data-i18n-title="folder_help"
+                      style="padding: 0; border: none; background: none;">
+                      <i class="material-icons folder-help-icon" style="font-size: 24px;">info</i>
+                    </button>
+                  </div>
+                  <div class="card-body custom-folder-card-body">
+                    <div class="form-group d-flex align-items-top" style="padding-top:0; margin-bottom:0;">
+                      <div id="folderTreeContainer"></div>
+                    </div>
+                    <div class="folder-actions mt-3">
+                      <button id="createFolderBtn" class="btn btn-primary">
+                        <i class="material-icons">create_new_folder</i>
+                      </button>
+                      <div id="createFolderModal" class="modal">
+                        <div class="modal-content">
+                          <h4 data-i18n-key="create_folder_title">Create Folder</h4>
+                          <input type="text" id="newFolderName" class="form-control"
+                            data-i18n-placeholder="enter_folder_name" placeholder="Enter folder name"
+                            style="margin-top:10px;" />
+                          <div style="margin-top:15px; text-align:right;">
+                            <button id="cancelCreateFolder" class="btn btn-secondary"
+                              data-i18n-key="cancel">Cancel</button>
+                            <button id="submitCreateFolder" class="btn btn-primary"
+                              data-i18n-key="create">Create</button>
+                          </div>
+                        </div>
+                      </div>
+                      <button id="renameFolderBtn" class="btn btn-warning ml-2">
+                        <i class="material-icons">drive_file_rename_outline</i>
+                      </button>
+                      <div id="renameFolderModal" class="modal">
+                        <div class="modal-content">
+                          <h4 data-i18n-key="rename_folder_title">Rename Folder</h4>
+                          <input type="text" id="newRenameFolderName" class="form-control"
+                            data-i18n-placeholder="rename_folder_placeholder" placeholder="Enter new folder name"
+                            style="margin-top:10px;" />
+                          <div style="margin-top:15px; text-align:right;">
+                            <button id="cancelRenameFolder" class="btn btn-secondary"
+                              data-i18n-key="cancel">Cancel</button>
+                            <button id="submitRenameFolder" class="btn btn-primary"
+                              data-i18n-key="rename">Rename</button>
+                          </div>
+                        </div>
+                      </div>
+                    
+                      <button id="shareFolderBtn" class="btn btn-secondary ml-2" data-i18n-title="share_folder">
+                        <i class="material-icons">share</i>
+                     </button>
+                      <button id="deleteFolderBtn" class="btn btn-danger ml-2" data-i18n-title="delete_folder">
+                        <i class="material-icons">delete</i>
+                      </button>
+                      <div id="deleteFolderModal" class="modal">
+                        <div class="modal-content">
+                          <h4 data-i18n-key="delete_folder_title">Delete Folder</h4>
+                          <p id="deleteFolderMessage" data-i18n-key="delete_folder_message">Are you sure you want to
+                            delete this folder?</p>
+                          <div style="margin-top:15px; text-align:right;">
+                            <button id="cancelDeleteFolder" class="btn btn-secondary"
+                              data-i18n-key="cancel">Cancel</button>
+                            <button id="confirmDeleteFolder" class="btn btn-danger"
+                              data-i18n-key="delete">Delete</button>
+                          </div>
+                        </div>
                       </div>
                     </div>
-                  </div>
-                  <button id="renameFolderBtn" class="btn btn-secondary ml-2" title="Rename Folder">
-                    <i class="material-icons">drive_file_rename_outline</i>
-                  </button>
-                  <!-- Rename Folder Modal -->
-                  <div id="renameFolderModal" class="modal">
-                    <div class="modal-content">
-                      <h4>Rename Folder</h4>
-                      <input type="text" id="newRenameFolderName" class="form-control"
-                        placeholder="Enter new folder name" style="margin-top:10px;" />
-                      <div style="margin-top:15px; text-align:right;">
-                        <button id="cancelRenameFolder" class="btn btn-secondary">Cancel</button>
-                        <button id="submitRenameFolder" class="btn btn-primary">Rename</button>
-                      </div>
-                    </div>
-                  </div>
-                  <button id="deleteFolderBtn" class="btn btn-danger ml-2" title="Delete Folder">
-                    <i class="material-icons">delete</i>
-                  </button>
-                  <!-- Delete Folder Modal -->
-                  <div id="deleteFolderModal" class="modal">
-                    <div class="modal-content">
-                      <h4>Delete Folder</h4>
-                      <p id="deleteFolderMessage">Are you sure you want to delete this folder?</p>
-                      <div style="margin-top:15px; text-align:right;">
-                        <button id="cancelDeleteFolder" class="btn btn-secondary">Cancel</button>
-                        <button id="confirmDeleteFolder" class="btn btn-danger">Delete</button>
-                      </div>
+                    <div id="folderHelpTooltip" class="folder-help-tooltip"
+                      style="display: none; position: absolute; top: 50px; right: 15px; background: #fff; border: 1px solid #ccc; padding: 10px; z-index: 1000; box-shadow: 2px 2px 6px rgba(0,0,0,0.2);">
+                      <ul class="folder-help-list" style="margin: 0; padding-left: 20px;">
+                        <li data-i18n-key="folder_help_item_1">Click on a folder in the tree to view its files.</li>
+                        <li data-i18n-key="folder_help_item_2">Use [-] to collapse and [+] to expand folders.</li>
+                        <li data-i18n-key="folder_help_item_3">Select a folder and click "Create Folder" to add a
+                          subfolder.</li>
+                        <li data-i18n-key="folder_help_item_4">To rename or delete a folder, select it and then click
+                          the appropriate button.</li>
+                      </ul>
                     </div>
                   </div>
                 </div>
-                <!-- Help Tooltip: Initially hidden -->
-                <div id="folderHelpTooltip" class="folder-help-tooltip"
-                  style="display: none; position: absolute; top: 50px; right: 15px; background: #fff; border: 1px solid #ccc; padding: 10px; z-index: 1000; box-shadow: 2px 2px 6px rgba(0,0,0,0.2);">
-                  <ul class="folder-help-list" style="margin: 0; padding-left: 20px;">
-                    <li>Click on a folder in the tree to view its files.</li>
-                    <li>Use [-] to collapse and [+] to expand folders.</li>
-                    <li>Select a folder and click "Create Folder" to add a subfolder.</li>
-                    <li>To rename or delete a folder, select it and then click the appropriate button.</li>
-                  </ul>
+              </div>
+            </div> <!-- end uploadFolderRow -->
+          </div> <!-- end container -->
+        </div> <!-- end mainOperations -->
+
+        <!-- File List Section -->
+        <div id="fileListContainer" style="display: none;">
+          <h2 id="fileListTitle" data-i18n-key="file_list_title">Files in (Root)</h2>
+          <div id="fileListActions" class="file-list-actions">
+            <button id="deleteSelectedBtn" class="btn action-btn" style="display: none;"
+              data-i18n-key="delete_files">Delete Files</button>
+            <div id="deleteFilesModal" class="modal">
+              <div class="modal-content">
+                <h4 data-i18n-key="delete_selected_files_title">Delete Selected Files</h4>
+                <p id="deleteFilesMessage" data-i18n-key="delete_files_message">Are you sure you want to delete the
+                  selected files?</p>
+                <div class="modal-footer">
+                  <button id="cancelDeleteFiles" class="btn btn-secondary" data-i18n-key="cancel">Cancel</button>
+                  <button id="confirmDeleteFiles" class="btn btn-danger" data-i18n-key="delete">Delete</button>
+                </div>
+              </div>
+            </div>
+            <button id="copySelectedBtn" class="btn action-btn" style="display: none;" disabled
+              data-i18n-key="copy_files">Copy Files</button>
+            <div id="copyFilesModal" class="modal">
+              <div class="modal-content">
+                <h4 data-i18n-key="copy_files_title">Copy Selected Files</h4>
+                <p id="copyFilesMessage" data-i18n-key="copy_files_message">Select a target folder for copying the
+                  selected files:</p>
+                <select id="copyTargetFolder" class="form-control modal-input"></select>
+                <div class="modal-footer">
+                  <button id="cancelCopyFiles" class="btn btn-secondary" data-i18n-key="cancel">Cancel</button>
+                  <button id="confirmCopyFiles" class="btn btn-primary" data-i18n-key="copy">Copy</button>
+                </div>
+              </div>
+            </div>
+            <button id="moveSelectedBtn" class="btn action-btn" style="display: none;" disabled
+              data-i18n-key="move_files">Move Files</button>
+            <div id="moveFilesModal" class="modal">
+              <div class="modal-content">
+                <h4 data-i18n-key="move_files_title">Move Selected Files</h4>
+                <p id="moveFilesMessage" data-i18n-key="move_files_message">Select a target folder for moving the
+                  selected files:</p>
+                <select id="moveTargetFolder" class="form-control modal-input"></select>
+                <div class="modal-footer">
+                  <button id="cancelMoveFiles" class="btn btn-secondary" data-i18n-key="cancel">Cancel</button>
+                  <button id="confirmMoveFiles" class="btn btn-primary" data-i18n-key="move">Move</button>
+                </div>
+              </div>
+            </div>
+            <button id="downloadZipBtn" class="btn action-btn" style="display: none;" disabled
+              data-i18n-key="download_zip">Download ZIP</button>
+            <button id="extractZipBtn" class="btn btn-sm btn-info" data-i18n-title="extract_zip"
+              data-i18n-key="extract_zip_button">Extract Zip</button>
+            <div id="downloadZipModal" class="modal" style="display:none;">
+              <div class="modal-content">
+                <h4 data-i18n-key="download_zip_title">Download Selected Files as Zip</h4>
+                <p data-i18n-key="download_zip_prompt">Enter a name for the zip file:</p>
+                <input type="text" id="zipFileNameInput" class="form-control" data-i18n-placeholder="zip_placeholder"
+                  placeholder="files.zip" />
+                <div class="modal-footer" style="margin-top:15px; text-align:right;">
+                  <button id="cancelDownloadZip" class="btn btn-secondary" data-i18n-key="cancel">Cancel</button>
+                  <button id="confirmDownloadZip" class="btn btn-primary" data-i18n-key="download">Download</button>
                 </div>
               </div>
             </div>
           </div>
+          <div id="fileList"></div>
         </div>
-      </div>
-    </div>
-    <!-- File List Section -->
-    <div id="fileListContainer" style="display: none;">
-      <h2 id="fileListTitle">Files in (Root)</h2>
-      <div id="fileListActions" class="file-list-actions">
-        <button id="deleteSelectedBtn" class="btn action-btn" style="display: none;">Delete Files</button>
-        <!-- Delete Files Modal -->
-        <div id="deleteFilesModal" class="modal">
-          <div class="modal-content">
-            <h4>Delete Selected Files</h4>
-            <p id="deleteFilesMessage">Are you sure you want to delete the selected files?</p>
-            <div class="modal-footer">
-              <button id="cancelDeleteFiles" class="btn btn-secondary">Cancel</button>
-              <button id="confirmDeleteFiles" class="btn btn-danger">Delete</button>
-            </div>
-          </div>
-        </div>
+      </div> <!-- end container-fluid -->
+    </div> <!-- end mainColumn -->
+  </div> <!-- end main-wrapper -->
 
-        <button id="copySelectedBtn" class="btn action-btn" style="display: none;" disabled>Copy Files</button>
-        <!-- Copy Files Modal -->
-        <div id="copyFilesModal" class="modal">
-          <div class="modal-content">
-            <h4>Copy Selected Files</h4>
-            <p id="copyFilesMessage">Select a target folder for copying the selected files:</p>
-            <select id="copyTargetFolder" class="form-control modal-input"></select>
-            <div class="modal-footer">
-              <button id="cancelCopyFiles" class="btn btn-secondary">Cancel</button>
-              <button id="confirmCopyFiles" class="btn btn-primary">Copy</button>
-            </div>
-          </div>
-        </div>
-
-        <button id="moveSelectedBtn" class="btn action-btn" style="display: none;" disabled>Move Files</button>
-        <!-- Move Files Modal -->
-        <div id="moveFilesModal" class="modal">
-          <div class="modal-content">
-            <h4>Move Selected Files</h4>
-            <p id="moveFilesMessage">Select a target folder for moving the selected files:</p>
-            <select id="moveTargetFolder" class="form-control modal-input"></select>
-            <div class="modal-footer">
-              <button id="cancelMoveFiles" class="btn btn-secondary">Cancel</button>
-              <button id="confirmMoveFiles" class="btn btn-primary">Move</button>
-            </div>
-          </div>
-        </div>
-
-        <button id="downloadZipBtn" class="btn action-btn" style="display: none;" disabled>Download ZIP</button>
-        <!-- Download Zip Modal -->
-        <div id="downloadZipModal" class="modal" style="display:none;">
-          <div class="modal-content">
-            <h4>Download Selected Files as Zip</h4>
-            <p>Enter a name for the zip file:</p>
-            <input type="text" id="zipFileNameInput" class="form-control" placeholder="files.zip" />
-            <div class="modal-footer" style="margin-top:15px; text-align:right;">
-              <button id="cancelDownloadZip" class="btn btn-secondary">Cancel</button>
-              <button id="confirmDownloadZip" class="btn btn-primary">Download</button>
-            </div>
-          </div>
-        </div>
-      </div>
-      <div id="fileList"></div>
+  <!-- Download Progress Modal -->
+  <div id="downloadProgressModal" class="modal" style="display: none;">
+    <div class="modal-content" style="text-align: center; padding: 20px;">
+      <!-- Material icon spinner with a dedicated class -->
+      <span class="material-icons download-spinner">autorenew</span>
+      <p>Preparing your download...</p>
     </div>
   </div>
 
-  <!-- Add User Modal -->
+  <!-- Single File Download Modal -->
+  <div id="downloadFileModal" class="modal" style="display: none;">
+    <div class="modal-content" style="text-align: center; padding: 20px;">
+      <h4>Download File</h4>
+      <p>Confirm or change the download file name:</p>
+      <input type="text" id="downloadFileNameInput" class="form-control" placeholder="Filename" />
+      <div style="margin-top: 15px; text-align: right;">
+        <button id="cancelDownloadFile" class="btn btn-secondary"
+          onclick="document.getElementById('downloadFileModal').style.display = 'none';">Cancel</button>
+        <button id="confirmSingleDownloadButton" class="btn btn-primary"
+          onclick="confirmSingleDownload()">Download</button>
+      </div>
+    </div>
+  </div>
+
+  <!-- Change Password, Add User, Remove User, Rename File, and Custom Confirm Modals (unchanged) -->
+  <div id="changePasswordModal" class="modal" style="display:none;">
+    <div class="modal-content" style="max-width:400px; margin:auto;">
+      <span id="closeChangePasswordModal" style="cursor:pointer;">&times;</span>
+      <h3 data-i18n-key="change_password_title">Change Password</h3>
+      <input type="password" id="oldPassword" class="form-control" data-i18n-placeholder="old_password"
+        placeholder="Old Password" style="width:100%; margin: 5px 0;" />
+      <input type="password" id="newPassword" class="form-control" data-i18n-placeholder="new_password"
+        placeholder="New Password" style="width:100%; margin: 5px 0;" />
+      <input type="password" id="confirmPassword" class="form-control" data-i18n-placeholder="confirm_new_password"
+        placeholder="Confirm New Password" style="width:100%; margin: 5px 0;" />
+      <button id="saveNewPasswordBtn" class="btn btn-primary" data-i18n-key="save" style="width:100%;">Save</button>
+    </div>
+  </div>
   <div id="addUserModal" class="modal">
     <div class="modal-content">
-      <h3>Create New User</h3>
-      <label for="newUsername">Username:</label>
+      <h3 data-i18n-key="create_new_user_title">Create New User</h3>
+      <label for="newUsername" data-i18n-key="username">Username:</label>
       <input type="text" id="newUsername" class="form-control" />
-      <label for="newPassword">Password:</label>
-      <input type="password" id="newPassword" class="form-control" />
+      <label for="addUserPassword" data-i18n-key="password">Password:</label>
+      <input type="password" id="addUserPassword" class="form-control" />
       <div id="adminCheckboxContainer">
         <input type="checkbox" id="isAdmin" />
-        <label for="isAdmin">Grant Admin Access</label>
+        <label for="isAdmin" data-i18n-key="grant_admin">Grant Admin Access</label>
       </div>
       <div class="button-container">
-        <button id="cancelUserBtn" class="btn btn-secondary">Cancel</button>
-        <button id="saveUserBtn" class="btn btn-primary">Save User</button>
+        <button id="cancelUserBtn" class="btn btn-secondary" data-i18n-key="cancel">Cancel</button>
+        <button id="saveUserBtn" class="btn btn-primary" data-i18n-key="save_user">Save User</button>
       </div>
     </div>
   </div>
-
-  <!-- Remove User Modal -->
   <div id="removeUserModal" class="modal">
     <div class="modal-content">
-      <h3>Remove User</h3>
-      <label for="removeUsernameSelect">Select a user to remove:</label>
+      <h3 data-i18n-key="remove_user_title">Remove User</h3>
+      <label for="removeUsernameSelect" data-i18n-key="select_user_remove">Select a user to remove:</label>
       <select id="removeUsernameSelect" class="form-control"></select>
       <div class="button-container">
-        <button id="cancelRemoveUserBtn" class="btn btn-secondary">Cancel</button>
-        <button id="deleteUserBtn" class="btn btn-danger">Delete User</button>
+        <button id="cancelRemoveUserBtn" class="btn btn-secondary" data-i18n-key="cancel">Cancel</button>
+        <button id="deleteUserBtn" class="btn btn-danger" data-i18n-key="delete_user">Delete User</button>
       </div>
     </div>
   </div>
-
-  <!-- Rename File Modal -->
   <div id="renameFileModal" class="modal">
     <div class="modal-content">
-      <h4>Rename File</h4>
-      <input type="text" id="newFileName" class="form-control" placeholder="Enter new file name"
-        style="margin-top:10px;" />
+      <h4 data-i18n-key="rename_file_title">Rename File</h4>
+      <input type="text" id="newFileName" class="form-control" data-i18n-placeholder="rename_file_placeholder"
+        placeholder="Enter new file name" style="margin-top:10px;" />
       <div style="margin-top:15px; text-align:right;">
-        <button id="cancelRenameFile" class="btn btn-secondary">Cancel</button>
-        <button id="submitRenameFile" class="btn btn-primary">Rename</button>
+        <button id="cancelRenameFile" class="btn btn-secondary" data-i18n-key="cancel">Cancel</button>
+        <button id="submitRenameFile" class="btn btn-primary" data-i18n-key="rename">Rename</button>
       </div>
     </div>
   </div>
-
-  <!-- Custom Confirm Modal -->
   <div id="customConfirmModal" class="modal" style="display:none;">
     <div class="modal-content">
       <p id="confirmMessage"></p>
       <div class="modal-actions">
-        <button id="confirmYesBtn" class="btn btn-primary">Yes</button>
-        <button id="confirmNoBtn" class="btn btn-secondary">No</button>
+        <button id="confirmYesBtn" class="btn btn-primary" data-i18n-key="yes">Yes</button>
+        <button id="confirmNoBtn" class="btn btn-secondary" data-i18n-key="no">No</button>
       </div>
     </div>
   </div>
-
-  <!-- JavaScript Files -->
-  <script type="module" src="main.js"></script>
+  <script type="module" src="js/main.js"></script>
 </body>
 
 </html>

js/auth.js

@@ -0,0 +1,456 @@
+import { sendRequest } from './networkUtils.js';
+import { t } from './i18n.js';
+import {
+  toggleVisibility,
+  showToast as originalShowToast,
+  attachEnterKeyListener,
+  showCustomConfirmModal
+} from './domUtils.js';
+import { loadFileList } from './fileListView.js';
+import { initFileActions } from './fileActions.js';
+import { renderFileTable } from './fileListView.js';
+import { loadFolderTree } from './folderManager.js';
+import {
+  openTOTPLoginModal as originalOpenTOTPLoginModal,
+  openUserPanel,
+  openTOTPModal,
+  closeTOTPModal,
+  openAdminPanel,
+  closeAdminPanel,
+  setLastLoginData
+} from './authModals.js';
+
+// Production OIDC configuration (override via API as needed)
+const currentOIDCConfig = {
+  providerUrl: "https://your-oidc-provider.com",
+  clientId: "YOUR_CLIENT_ID",
+  clientSecret: "YOUR_CLIENT_SECRET",
+  redirectUri: "https://yourdomain.com/auth.php?oidc=callback",
+  globalOtpauthUrl: ""
+};
+window.currentOIDCConfig = currentOIDCConfig;
+
+/* ----------------- TOTP & Toast Overrides ----------------- */
+// detect if we’re in a pending‑TOTP state
+window.pendingTOTP = new URLSearchParams(window.location.search).get('totp_required') === '1';
+
+// override showToast to suppress the "Please log in to continue." toast during TOTP
+function showToast(msgKey) {
+  const msg = t(msgKey);
+  if (window.pendingTOTP && msgKey === "please_log_in_to_continue") {
+    return;
+  }
+  originalShowToast(msg);
+}
+window.showToast = showToast;
+
+// wrap the TOTP modal opener to disable other login buttons only for Basic/OIDC flows
+function openTOTPLoginModal() {
+  originalOpenTOTPLoginModal();
+
+  const isFormLogin = Boolean(window.__lastLoginData);
+  if (!isFormLogin) {
+    // disable Basic‑Auth link
+    const basicLink = document.querySelector("a[href='login_basic.php']");
+    if (basicLink) {
+      basicLink.style.pointerEvents = 'none';
+      basicLink.style.opacity = '0.5';
+    }
+    // disable OIDC button
+    const oidcBtn = document.getElementById("oidcLoginBtn");
+    if (oidcBtn) {
+      oidcBtn.disabled = true;
+      oidcBtn.style.opacity = '0.5';
+    }
+    // hide the form login
+    const authForm = document.getElementById("authForm");
+    if (authForm) authForm.style.display = 'none';
+  }
+}
+
+/* ----------------- Utility Functions ----------------- */
+function updateItemsPerPageSelect() {
+  const selectElem = document.querySelector(".form-control.bottom-select");
+  if (selectElem) {
+    selectElem.value = localStorage.getItem("itemsPerPage") || "10";
+  }
+}
+
+function updateLoginOptionsUI({ disableFormLogin, disableBasicAuth, disableOIDCLogin }) {
+  const authForm = document.getElementById("authForm");
+  if (authForm) authForm.style.display = disableFormLogin ? "none" : "block";
+  const basicAuthLink = document.querySelector("a[href='login_basic.php']");
+  if (basicAuthLink) basicAuthLink.style.display = disableBasicAuth ? "none" : "inline-block";
+  const oidcLoginBtn = document.getElementById("oidcLoginBtn");
+  if (oidcLoginBtn) oidcLoginBtn.style.display = disableOIDCLogin ? "none" : "inline-block";
+}
+
+function updateLoginOptionsUIFromStorage() {
+  updateLoginOptionsUI({
+    disableFormLogin: localStorage.getItem("disableFormLogin") === "true",
+    disableBasicAuth: localStorage.getItem("disableBasicAuth") === "true",
+    disableOIDCLogin: localStorage.getItem("disableOIDCLogin") === "true"
+  });
+}
+
+function loadAdminConfigFunc() {
+  return fetch("getConfig.php", { credentials: "include" })
+    .then(response => response.json())
+    .then(config => {
+      localStorage.setItem("disableFormLogin", config.loginOptions.disableFormLogin);
+      localStorage.setItem("disableBasicAuth", config.loginOptions.disableBasicAuth);
+      localStorage.setItem("disableOIDCLogin", config.loginOptions.disableOIDCLogin);
+      localStorage.setItem("globalOtpauthUrl", config.globalOtpauthUrl || "otpauth://totp/{label}?secret={secret}&issuer=FileRise");
+      updateLoginOptionsUIFromStorage();
+    })
+    .catch(() => {
+      localStorage.setItem("disableFormLogin", "false");
+      localStorage.setItem("disableBasicAuth", "false");
+      localStorage.setItem("disableOIDCLogin", "false");
+      localStorage.setItem("globalOtpauthUrl", "otpauth://totp/{label}?secret={secret}&issuer=FileRise");
+      updateLoginOptionsUIFromStorage();
+    });
+}
+
+function insertAfter(newNode, referenceNode) {
+  referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
+}
+
+function updateAuthenticatedUI(data) {
+  toggleVisibility("loginForm", false);
+  toggleVisibility("mainOperations", true);
+  toggleVisibility("uploadFileForm", true);
+  toggleVisibility("fileListContainer", true);
+  attachEnterKeyListener("addUserModal", "saveUserBtn");
+  attachEnterKeyListener("removeUserModal", "deleteUserBtn");
+  attachEnterKeyListener("changePasswordModal", "saveNewPasswordBtn");
+  document.querySelector(".header-buttons").style.visibility = "visible";
+
+  if (typeof data.totp_enabled !== "undefined") {
+    localStorage.setItem("userTOTPEnabled", data.totp_enabled ? "true" : "false");
+  }
+  if (data.username) {
+    localStorage.setItem("username", data.username);
+  }
+  if (typeof data.folderOnly !== "undefined") {
+    localStorage.setItem("folderOnly", data.folderOnly ? "true" : "false");
+  }
+
+  const headerButtons = document.querySelector(".header-buttons");
+  const firstButton = headerButtons.firstElementChild;
+
+  if (data.isAdmin) {
+    let restoreBtn = document.getElementById("restoreFilesBtn");
+    if (!restoreBtn) {
+      restoreBtn = document.createElement("button");
+      restoreBtn.id = "restoreFilesBtn";
+      restoreBtn.classList.add("btn", "btn-warning");
+      restoreBtn.innerHTML = '<i class="material-icons" title="Restore/Delete Trash">restore_from_trash</i>';
+      if (firstButton) insertAfter(restoreBtn, firstButton);
+      else headerButtons.appendChild(restoreBtn);
+    }
+    restoreBtn.style.display = "block";
+
+    let adminPanelBtn = document.getElementById("adminPanelBtn");
+    if (!adminPanelBtn) {
+      adminPanelBtn = document.createElement("button");
+      adminPanelBtn.id = "adminPanelBtn";
+      adminPanelBtn.classList.add("btn", "btn-info");
+      adminPanelBtn.innerHTML = '<i class="material-icons" title="Admin Panel">admin_panel_settings</i>';
+      insertAfter(adminPanelBtn, restoreBtn);
+      adminPanelBtn.addEventListener("click", openAdminPanel);
+    } else {
+      adminPanelBtn.style.display = "block";
+    }
+  } else {
+    const restoreBtn = document.getElementById("restoreFilesBtn");
+    if (restoreBtn) restoreBtn.style.display = "none";
+    const adminPanelBtn = document.getElementById("adminPanelBtn");
+    if (adminPanelBtn) adminPanelBtn.style.display = "none";
+  }
+
+  if (window.location.hostname !== "demo.filerise.net") {
+    let userPanelBtn = document.getElementById("userPanelBtn");
+    if (!userPanelBtn) {
+      userPanelBtn = document.createElement("button");
+      userPanelBtn.id = "userPanelBtn";
+      userPanelBtn.classList.add("btn", "btn-user");
+      userPanelBtn.innerHTML = '<i class="material-icons" title="User Panel">account_circle</i>';
+      const adminBtn = document.getElementById("adminPanelBtn");
+      if (adminBtn) insertAfter(userPanelBtn, adminBtn);
+      else if (firstButton) insertAfter(userPanelBtn, firstButton);
+      else headerButtons.appendChild(userPanelBtn);
+      userPanelBtn.addEventListener("click", openUserPanel);
+    } else {
+      userPanelBtn.style.display = "block";
+    }
+  }
+
+  updateItemsPerPageSelect();
+  updateLoginOptionsUIFromStorage();
+}
+
+function checkAuthentication(showLoginToast = true) {
+  return sendRequest("checkAuth.php")
+    .then(data => {
+      if (data.setup) {
+        window.setupMode = true;
+        if (showLoginToast) showToast("Setup mode: No users found. Please add an admin user.");
+        toggleVisibility("loginForm", false);
+        toggleVisibility("mainOperations", false);
+        document.querySelector(".header-buttons").style.visibility = "hidden";
+        toggleVisibility("addUserModal", true);
+        document.getElementById("newUsername").focus();
+        return false;
+      }
+      window.setupMode = false;
+      if (data.authenticated) {
+        if (typeof data.totp_enabled !== "undefined") {
+          localStorage.setItem("userTOTPEnabled", data.totp_enabled ? "true" : "false");
+        }
+        updateAuthenticatedUI(data);
+        return data;
+      } else {
+        if (showLoginToast) showToast("Please log in to continue.");
+        toggleVisibility("loginForm", true);
+        toggleVisibility("mainOperations", false);
+        toggleVisibility("uploadFileForm", false);
+        toggleVisibility("fileListContainer", false);
+        document.querySelector(".header-buttons").style.visibility = "hidden";
+        return false;
+      }
+    })
+    .catch(() => false);
+}
+
+/* ----------------- Authentication Submission ----------------- */
+function submitLogin(data) {
+  setLastLoginData(data);
+  window.__lastLoginData = data;
+sendRequest("auth.php", "POST", data, { "X-CSRF-Token": window.csrfToken })
+  .then(response => {
+    if (response.success || response.status === "ok") {
+      sessionStorage.setItem("welcomeMessage", "Welcome back, " + data.username + "!");
+      window.location.reload();
+    } else if (response.totp_required) {
+      openTOTPLoginModal();
+    } else if (response.error && response.error.includes("Too many failed login attempts")) {
+      showToast(response.error);
+        const loginButton = document.getElementById("authForm").querySelector("button[type='submit']");
+        if (loginButton) {
+          loginButton.disabled = true;
+          setTimeout(() => {
+            loginButton.disabled = false;
+            showToast("You can now try logging in again.");
+          }, 30 * 60 * 1000);
+        }
+      } else {
+        showToast("Login failed: " + (response.error || "Unknown error"));
+      }
+    })
+    .catch(() => {
+      showToast("Login failed: Unknown error");
+    });
+}
+window.submitLogin = submitLogin;
+
+/* ----------------- Other Helpers ----------------- */
+window.changeItemsPerPage = function (value) {
+  localStorage.setItem("itemsPerPage", value);
+  if (typeof renderFileTable === "function") renderFileTable(window.currentFolder || "root");
+};
+
+function resetUserForm() {
+  document.getElementById("newUsername").value = "";
+  document.getElementById("addUserPassword").value = "";
+}
+
+function closeAddUserModal() {
+  toggleVisibility("addUserModal", false);
+  resetUserForm();
+}
+
+function closeRemoveUserModal() {
+  toggleVisibility("removeUserModal", false);
+  document.getElementById("removeUsernameSelect").innerHTML = "";
+}
+
+function loadUserList() {
+  fetch("getUsers.php", { credentials: "include" })
+    .then(response => response.json())
+    .then(data => {
+      const users = Array.isArray(data) ? data : (data.users || []);
+      const selectElem = document.getElementById("removeUsernameSelect");
+      selectElem.innerHTML = "";
+      users.forEach(user => {
+        const option = document.createElement("option");
+        option.value = user.username;
+        option.textContent = user.username;
+        selectElem.appendChild(option);
+      });
+      if (selectElem.options.length === 0) {
+        showToast("No other users found to remove.");
+        closeRemoveUserModal();
+      }
+    })
+    .catch(() => {});
+}
+window.loadUserList = loadUserList;
+
+function initAuth() {
+  checkAuthentication(false);
+  loadAdminConfigFunc();
+  const authForm = document.getElementById("authForm");
+  if (authForm) {
+    authForm.addEventListener("submit", function (event) {
+      event.preventDefault();
+      const rememberMe = document.getElementById("rememberMeCheckbox")
+        ? document.getElementById("rememberMeCheckbox").checked
+        : false;
+      const formData = {
+        username: document.getElementById("loginUsername").value.trim(),
+        password: document.getElementById("loginPassword").value.trim(),
+        remember_me: rememberMe
+      };
+      submitLogin(formData);
+    });
+  }
+  document.getElementById("logoutBtn").addEventListener("click", function () {
+    fetch("logout.php", {
+      method: "POST",
+      credentials: "include",
+      headers: { "X-CSRF-Token": window.csrfToken }
+    }).then(() => window.location.reload(true)).catch(() => {});
+  });
+  document.getElementById("addUserBtn").addEventListener("click", function () {
+    resetUserForm();
+    toggleVisibility("addUserModal", true);
+    document.getElementById("newUsername").focus();
+  });
+  document.getElementById("saveUserBtn").addEventListener("click", function () {
+    const newUsername = document.getElementById("newUsername").value.trim();
+    const newPassword = document.getElementById("addUserPassword").value.trim();
+    const isAdmin = document.getElementById("isAdmin").checked;
+    if (!newUsername || !newPassword) {
+      showToast("Username and password are required!");
+      return;
+    }
+    let url = "addUser.php";
+    if (window.setupMode) url += "?setup=1";
+    fetch(url, {
+      method: "POST",
+      credentials: "include",
+      headers: { "Content-Type": "application/json", "X-CSRF-Token": window.csrfToken },
+      body: JSON.stringify({ username: newUsername, password: newPassword, isAdmin })
+    })
+      .then(response => response.json())
+      .then(data => {
+        if (data.success) {
+          showToast("User added successfully!");
+          closeAddUserModal();
+          checkAuthentication(false);
+        } else {
+          showToast("Error: " + (data.error || "Could not add user"));
+        }
+      })
+      .catch(() => { });
+  });
+  document.getElementById("cancelUserBtn").addEventListener("click", closeAddUserModal);
+
+  document.getElementById("removeUserBtn").addEventListener("click", function () {
+    loadUserList();
+    toggleVisibility("removeUserModal", true);
+  });
+  document.getElementById("deleteUserBtn").addEventListener("click", async function () {
+    const selectElem = document.getElementById("removeUsernameSelect");
+    const usernameToRemove = selectElem.value;
+    if (!usernameToRemove) {
+      showToast("Please select a user to remove.");
+      return;
+    }
+    const confirmed = await showCustomConfirmModal("Are you sure you want to delete user " + usernameToRemove + "?");
+    if (!confirmed) return;
+    fetch("removeUser.php", {
+      method: "POST",
+      credentials: "include",
+      headers: { "Content-Type": "application/json", "X-CSRF-Token": window.csrfToken },
+      body: JSON.stringify({ username: usernameToRemove })
+    })
+      .then(response => response.json())
+      .then(data => {
+        if (data.success) {
+          showToast("User removed successfully!");
+          closeRemoveUserModal();
+          loadUserList();
+        } else {
+          showToast("Error: " + (data.error || "Could not remove user"));
+        }
+      })
+      .catch(() => {});
+  });
+  document.getElementById("cancelRemoveUserBtn").addEventListener("click", closeRemoveUserModal);
+  document.getElementById("changePasswordBtn").addEventListener("click", function () {
+    document.getElementById("changePasswordModal").style.display = "block";
+    document.getElementById("oldPassword").focus();
+  });
+  document.getElementById("closeChangePasswordModal").addEventListener("click", function () {
+    document.getElementById("changePasswordModal").style.display = "none";
+  });
+  document.getElementById("saveNewPasswordBtn").addEventListener("click", function () {
+    const oldPassword = document.getElementById("oldPassword").value.trim();
+    const newPassword = document.getElementById("newPassword").value.trim();
+    const confirmPassword = document.getElementById("confirmPassword").value.trim();
+    if (!oldPassword || !newPassword || !confirmPassword) {
+      showToast("Please fill in all fields.");
+      return;
+    }
+    if (newPassword !== confirmPassword) {
+      showToast("New passwords do not match.");
+      return;
+    }
+    const data = { oldPassword, newPassword, confirmPassword };
+    fetch("changePassword.php", {
+      method: "POST",
+      credentials: "include",
+      headers: { "Content-Type": "application/json", "X-CSRF-Token": window.csrfToken },
+      body: JSON.stringify(data)
+    })
+      .then(response => response.json())
+      .then(result => {
+        if (result.success) {
+          showToast(result.success);
+          document.getElementById("oldPassword").value = "";
+          document.getElementById("newPassword").value = "";
+          document.getElementById("confirmPassword").value = "";
+          document.getElementById("changePasswordModal").style.display = "none";
+        } else {
+          showToast("Error: " + (result.error || "Could not change password."));
+        }
+      })
+      .catch(() => { showToast("Error changing password."); });
+  });
+}
+
+document.addEventListener("DOMContentLoaded", function () {
+  updateItemsPerPageSelect();
+  updateLoginOptionsUI({
+    disableFormLogin: localStorage.getItem("disableFormLogin") === "true",
+    disableBasicAuth: localStorage.getItem("disableBasicAuth") === "true",
+    disableOIDCLogin: localStorage.getItem("disableOIDCLogin") === "true"
+  });
+
+  const oidcLoginBtn = document.getElementById("oidcLoginBtn");
+  if (oidcLoginBtn) {
+    oidcLoginBtn.addEventListener("click", () => {
+      window.location.href = "auth.php?oidc=initiate";
+    });
+  }
+
+  // If TOTP is pending, show modal and skip normal auth init
+  if (window.pendingTOTP) {
+    openTOTPLoginModal();
+    return;
+  }
+});
+
+export { initAuth, checkAuthentication };

js/authModals.js

@@ -0,0 +1,840 @@
+import { showToast, toggleVisibility, attachEnterKeyListener } from './domUtils.js';
+import { sendRequest } from './networkUtils.js';
+import { t, applyTranslations, setLocale } from './i18n.js';
+
+const version = "v1.1.1";
+const adminTitle = `Admin Panel <small style="font-size: 12px; color: gray;">${version}</small>`;
+
+let lastLoginData = null;
+export function setLastLoginData(data) {
+  lastLoginData = data;
+  // expose to auth.js so it can tell form-login vs basic/oidc
+  //window.__lastLoginData = data;
+}
+
+export function openTOTPLoginModal() {
+  let totpLoginModal = document.getElementById("totpLoginModal");
+  const isDarkMode = document.body.classList.contains("dark-mode");
+  const modalBg = isDarkMode ? "#2c2c2c" : "#fff";
+  const textColor = isDarkMode ? "#e0e0e0" : "#000";
+
+  if (!totpLoginModal) {
+    totpLoginModal = document.createElement("div");
+    totpLoginModal.id = "totpLoginModal";
+    totpLoginModal.style.cssText = `
+      position: fixed;
+      top: 0; left: 0;
+      width: 100vw; height: 100vh;
+      background-color: rgba(0,0,0,0.5);
+      display: flex; justify-content: center; align-items: center;
+      z-index: 3200;
+    `;
+    totpLoginModal.innerHTML = `
+      <div style="background: ${modalBg}; padding:20px; border-radius:8px; text-align:center; position:relative; color:${textColor};">
+        <span id="closeTOTPLoginModal" style="position:absolute; top:10px; right:10px; cursor:pointer; font-size:24px;">&times;</span>
+        <div id="totpSection">
+          <h3>${t("enter_totp_code")}</h3>
+          <input type="text" id="totpLoginInput" maxlength="6"
+                 style="font-size:24px; text-align:center; width:100%; padding:10px;"
+                 placeholder="6-digit code" />
+        </div>
+        <a href="#" id="toggleRecovery" style="display:block; margin-top:10px; font-size:14px;">${t("use_recovery_code_instead")}</a>
+        <div id="recoverySection" style="display:none; margin-top:10px;">
+          <h3>${t("enter_recovery_code")}</h3>
+          <input type="text" id="recoveryInput"
+                 style="font-size:24px; text-align:center; width:100%; padding:10px;"
+                 placeholder="Recovery code" />
+          <button type="button" id="submitRecovery" class="btn btn-secondary" style="margin-top:10px;">Submit Recovery Code</button>
+        </div>
+      </div>
+    `;
+    document.body.appendChild(totpLoginModal);
+
+    // Close button
+    document.getElementById("closeTOTPLoginModal").addEventListener("click", () => {
+      totpLoginModal.style.display = "none";
+    });
+
+    // Toggle between TOTP and Recovery
+    document.getElementById("toggleRecovery").addEventListener("click", function (e) {
+      e.preventDefault();
+      const totpSection = document.getElementById("totpSection");
+      const recoverySection = document.getElementById("recoverySection");
+      const toggleLink = this;
+
+      if (recoverySection.style.display === "none") {
+        // Switch to recovery
+        totpSection.style.display = "none";
+        recoverySection.style.display = "block";
+        toggleLink.textContent = "Use TOTP Code instead";
+      } else {
+        // Switch back to TOTP
+        recoverySection.style.display = "none";
+        totpSection.style.display = "block";
+        toggleLink.textContent = "Use Recovery Code instead";
+      }
+    });
+
+    // Recovery submission
+    document.getElementById("submitRecovery").addEventListener("click", () => {
+      const recoveryCode = document.getElementById("recoveryInput").value.trim();
+      if (!recoveryCode) {
+        showToast("Please enter your recovery code.");
+        return;
+      }
+      fetch("totp_recover.php", {
+        method: "POST",
+        credentials: "include",
+        headers: {
+          "Content-Type": "application/json",
+          "X-CSRF-Token": window.csrfToken
+        },
+        body: JSON.stringify({ recovery_code: recoveryCode })
+      })
+        .then(res => res.json())
+        .then(json => {
+          if (json.status === "ok") {
+            // recovery succeeded → finalize login
+            window.location.href = "index.html";
+          } else {
+            showToast(json.message || "Recovery code verification failed");
+          }
+        })
+        .catch(() => {
+          showToast("Error verifying recovery code.");
+        });
+    });
+
+    // TOTP submission
+    const totpInput = document.getElementById("totpLoginInput");
+    totpInput.focus();
+    totpInput.addEventListener("input", function () {
+      const code = this.value.trim();
+      if (code.length === 6) {
+        fetch("totp_verify.php", {
+          method: "POST",
+          credentials: "include",
+          headers: {
+            "Content-Type": "application/json",
+            "X-CSRF-Token": window.csrfToken
+          },
+          body: JSON.stringify({ totp_code: code })
+        })
+          .then(res => res.json())
+          .then(json => {
+            if (json.status === "ok") {
+              window.location.href = "index.html";
+            } else {
+              showToast(json.message || "TOTP verification failed");
+              this.value = "";
+              totpLoginModal.style.display = "flex";
+              totpInput.focus();
+            }
+          })
+          .catch(() => {
+            showToast("TOTP verification failed");
+            this.value = "";
+            totpLoginModal.style.display = "flex";
+            totpInput.focus();
+          });
+      }
+    });
+  } else {
+    // Re-open existing modal
+    totpLoginModal.style.display = "flex";
+    const totpInput = document.getElementById("totpLoginInput");
+    totpInput.value = "";
+    totpInput.style.display = "block";
+    totpInput.focus();
+    document.getElementById("recoverySection").style.display = "none";
+  }
+}
+
+export function openUserPanel() {
+  const username = localStorage.getItem("username") || "User";
+  let userPanelModal = document.getElementById("userPanelModal");
+  const isDarkMode = document.body.classList.contains("dark-mode");
+  const overlayBackground = isDarkMode ? "rgba(0,0,0,0.7)" : "rgba(0,0,0,0.3)";
+  const modalContentStyles = `
+    background: ${isDarkMode ? "#2c2c2c" : "#fff"};
+    color: ${isDarkMode ? "#e0e0e0" : "#000"};
+    padding: 20px;
+    max-width: 600px;
+    width: 90%;
+    border-radius: 8px;
+    position: relative;
+    overflow-y: auto;
+    max-height: 90vh;
+    border: ${isDarkMode ? "1px solid #444" : "1px solid #ccc"};
+    transform: none;
+    transition: none;
+  `;
+  // Retrieve the language setting from local storage, default to English ("en")
+  const savedLanguage = localStorage.getItem("language") || "en";
+  if (!userPanelModal) {
+    userPanelModal = document.createElement("div");
+    userPanelModal.id = "userPanelModal";
+    userPanelModal.style.cssText = `
+        position: fixed;
+        top: 0;
+        left: 0;
+        width: 100vw;
+        height: 100vh;
+        background-color: ${overlayBackground};
+        display: flex;
+        justify-content: center;
+        align-items: center;
+        z-index: 3000;
+      `;
+    userPanelModal.innerHTML = `
+        <div class="modal-content" style="${modalContentStyles}">
+          <span id="closeUserPanel" style="position: absolute; top: 10px; right: 10px; cursor: pointer; font-size: 24px;">&times;</span>
+          <h3>User Panel (${username})</h3>
+          <button type="button" id="openChangePasswordModalBtn" class="btn btn-primary" style="margin-bottom: 15px;">Change Password</button>
+          <fieldset style="margin-bottom: 15px;">
+            <legend>TOTP Settings</legend>
+            <div class="form-group">
+              <label for="userTOTPEnabled">Enable TOTP:</label>
+              <input type="checkbox" id="userTOTPEnabled" style="vertical-align: middle;" />
+            </div>
+          </fieldset>
+          <fieldset style="margin-bottom: 15px;">
+            <legend>Language</legend>
+            <div class="form-group">
+              <label for="languageSelector">Select Language:</label>
+              <select id="languageSelector">
+                <option value="en">English</option>
+                <option value="es">Español</option>
+                <option value="fr">Français</option>
+                <option value="de">Deutsch</option>
+              </select>
+            </div>
+          </fieldset>
+        </div>
+      `;
+    document.body.appendChild(userPanelModal);
+    // Close button handler
+    document.getElementById("closeUserPanel").addEventListener("click", () => {
+      userPanelModal.style.display = "none";
+    });
+    // Change Password button
+    document.getElementById("openChangePasswordModalBtn").addEventListener("click", () => {
+      document.getElementById("changePasswordModal").style.display = "block";
+    });
+    // TOTP checkbox behavior
+    const totpCheckbox = document.getElementById("userTOTPEnabled");
+    totpCheckbox.checked = localStorage.getItem("userTOTPEnabled") === "true";
+    totpCheckbox.addEventListener("change", function () {
+      localStorage.setItem("userTOTPEnabled", this.checked ? "true" : "false");
+      const enabled = this.checked;
+      fetch("updateUserPanel.php", {
+        method: "POST",
+        credentials: "include",
+        headers: {
+          "Content-Type": "application/json",
+          "X-CSRF-Token": window.csrfToken
+        },
+        body: JSON.stringify({ totp_enabled: enabled })
+      })
+        .then(r => r.json())
+        .then(result => {
+          if (!result.success) {
+            showToast("Error updating TOTP setting: " + result.error);
+          } else if (enabled) {
+            openTOTPModal();
+          }
+        })
+        .catch(() => { showToast("Error updating TOTP setting."); });
+    });
+    // Language dropdown initialization
+    const languageSelector = document.getElementById("languageSelector");
+    languageSelector.value = savedLanguage;
+    languageSelector.addEventListener("change", function () {
+      const selectedLanguage = this.value;
+      localStorage.setItem("language", selectedLanguage);
+      setLocale(selectedLanguage);
+      applyTranslations();
+    });
+  } else {
+    // If the modal already exists, update its colors
+    userPanelModal.style.backgroundColor = overlayBackground;
+    const modalContent = userPanelModal.querySelector(".modal-content");
+    modalContent.style.background = isDarkMode ? "#2c2c2c" : "#fff";
+    modalContent.style.color = isDarkMode ? "#e0e0e0" : "#000";
+    modalContent.style.border = isDarkMode ? "1px solid #444" : "1px solid #ccc";
+  }
+  userPanelModal.style.display = "flex";
+}
+
+function showRecoveryCodeModal(recoveryCode) {
+  const recoveryModal = document.createElement("div");
+  recoveryModal.id = "recoveryModal";
+  recoveryModal.style.cssText = `
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 100vw;
+    height: 100vh;
+    background-color: rgba(0,0,0,0.3);
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    z-index: 3200;
+  `;
+  recoveryModal.innerHTML = `
+    <div style="background: #fff; color: #000; padding: 20px; max-width: 400px; width: 90%; border-radius: 8px; text-align: center;">
+      <h3>Your Recovery Code</h3>
+      <p>Please save this code securely. It will not be shown again and can only be used once.</p>
+      <code style="display: block; margin: 10px 0; font-size: 20px;">${recoveryCode}</code>
+      <button type="button" id="closeRecoveryModal" class="btn btn-primary">OK</button>
+    </div>
+  `;
+  document.body.appendChild(recoveryModal);
+
+  document.getElementById("closeRecoveryModal").addEventListener("click", () => {
+    recoveryModal.remove();
+  });
+}
+
+export function openTOTPModal() {
+  let totpModal = document.getElementById("totpModal");
+  const isDarkMode = document.body.classList.contains("dark-mode");
+  const overlayBackground = isDarkMode ? "rgba(0,0,0,0.7)" : "rgba(0,0,0,0.3)";
+  const modalContentStyles = `
+    background: ${isDarkMode ? "#2c2c2c" : "#fff"};
+    color: ${isDarkMode ? "#e0e0e0" : "#000"};
+    padding: 20px;
+    max-width: 400px;
+    width: 90%;
+    border-radius: 8px;
+    position: relative;
+  `;
+  if (!totpModal) {
+    totpModal = document.createElement("div");
+    totpModal.id = "totpModal";
+    totpModal.style.cssText = `
+      position: fixed;
+      top: 0;
+      left: 0;
+      width: 100vw;
+      height: 100vh;
+      background-color: ${overlayBackground};
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      z-index: 3100;
+    `;
+    totpModal.innerHTML = `
+      <div class="modal-content" style="${modalContentStyles}">
+        <span id="closeTOTPModal" style="position: absolute; top: 10px; right: 10px; cursor: pointer; font-size: 24px;">&times;</span>
+        <h3>TOTP Setup</h3>
+        <p>Scan this QR code with your authenticator app:</p>
+        <img src="totp_setup.php?csrf=${encodeURIComponent(window.csrfToken)}" alt="TOTP QR Code" style="max-width: 100%; height: auto; display: block; margin: 0 auto;">
+        <br/>
+        <p>Enter the 6-digit code from your app to confirm setup:</p>
+        <input type="text" id="totpConfirmInput" maxlength="6" style="font-size:24px; text-align:center; width:100%; padding:10px;" placeholder="6-digit code" />
+        <br/><br/>
+        <button type="button" id="confirmTOTPBtn" class="btn btn-primary">Confirm</button>
+      </div>
+    `;
+    document.body.appendChild(totpModal);
+
+    document.getElementById("closeTOTPModal").addEventListener("click", () => {
+      closeTOTPModal(true);
+    });
+
+    document.getElementById("confirmTOTPBtn").addEventListener("click", function () {
+      const code = document.getElementById("totpConfirmInput").value.trim();
+      if (code.length !== 6) {
+        showToast("Please enter a valid 6-digit code.");
+        return;
+      }
+      fetch("totp_verify.php", {
+        method: "POST",
+        credentials: "include",
+        headers: {
+          "Content-Type": "application/json",
+          "X-CSRF-Token": window.csrfToken
+        },
+        body: JSON.stringify({ totp_code: code })
+      })
+        .then(r => r.json())
+        .then(result => {
+          if (result.status === 'ok') {
+            showToast("TOTP successfully enabled.");
+            // After successful TOTP verification, fetch the recovery code
+            fetch("totp_saveCode.php", {
+              method: "POST",
+              credentials: "include",
+              headers: {
+                "Content-Type": "application/json",
+                "X-CSRF-Token": window.csrfToken
+              }
+            })
+              .then(r => r.json())
+              .then(data => {
+                if (data.status === 'ok' && data.recoveryCode) {
+                  // Show the recovery code in a secure modal
+                  showRecoveryCodeModal(data.recoveryCode);
+                } else {
+                  showToast("Error generating recovery code: " + (data.message || "Unknown error."));
+                }
+              })
+              .catch(() => { showToast("Error generating recovery code."); });
+            closeTOTPModal(false);
+          } else {
+            showToast("TOTP verification failed: " + (result.message || "Invalid code."));
+          }
+        })
+        .catch(() => { showToast("Error verifying TOTP code."); });
+    });
+
+    // Focus the input and attach enter key listener
+    const totpConfirmInput = document.getElementById("totpConfirmInput");
+    if (totpConfirmInput) {
+      setTimeout(() => {
+        const totpConfirmInput = document.getElementById("totpConfirmInput");
+        if (totpConfirmInput) totpConfirmInput.focus();
+      }, 100);
+    }
+    attachEnterKeyListener("totpModal", "confirmTOTPBtn");
+
+  } else {
+    totpModal.style.display = "flex";
+    totpModal.style.backgroundColor = overlayBackground;
+    const modalContent = totpModal.querySelector(".modal-content");
+    modalContent.style.background = isDarkMode ? "#2c2c2c" : "#fff";
+    modalContent.style.color = isDarkMode ? "#e0e0e0" : "#000";
+
+    // Focus the input and attach enter key listener
+    const totpConfirmInput = document.getElementById("totpConfirmInput");
+    if (totpConfirmInput) {
+      totpConfirmInput.value = "";
+      setTimeout(() => {
+        const totpConfirmInput = document.getElementById("totpConfirmInput");
+        if (totpConfirmInput) totpConfirmInput.focus();
+      }, 100);
+    }
+    attachEnterKeyListener("totpModal", "confirmTOTPBtn");
+  }
+}
+
+// Updated closeTOTPModal function with a disable parameter
+export function closeTOTPModal(disable = true) {
+  const totpModal = document.getElementById("totpModal");
+  if (totpModal) totpModal.style.display = "none";
+
+  if (disable) {
+    // Uncheck the Enable TOTP checkbox
+    const totpCheckbox = document.getElementById("userTOTPEnabled");
+    if (totpCheckbox) {
+      totpCheckbox.checked = false;
+      localStorage.setItem("userTOTPEnabled", "false");
+    }
+    // Call endpoint to remove the TOTP secret from the user's record
+    fetch("totp_disable.php", {
+      method: "POST",
+      credentials: "include",
+      headers: {
+        "Content-Type": "application/json",
+        "X-CSRF-Token": window.csrfToken
+      }
+    })
+      .then(r => r.json())
+      .then(result => {
+        if (!result.success) {
+          showToast("Error disabling TOTP setting: " + result.error);
+        }
+      })
+      .catch(() => { showToast("Error disabling TOTP setting."); });
+  }
+}
+
+export function openAdminPanel() {
+  fetch("getConfig.php", { credentials: "include" })
+    .then(response => response.json())
+    .then(config => {
+      if (config.oidc) Object.assign(window.currentOIDCConfig, config.oidc);
+      if (config.globalOtpauthUrl) window.currentOIDCConfig.globalOtpauthUrl = config.globalOtpauthUrl;
+      const isDarkMode = document.body.classList.contains("dark-mode");
+      const overlayBackground = isDarkMode ? "rgba(0,0,0,0.7)" : "rgba(0,0,0,0.3)";
+      const modalContentStyles = `
+          background: ${isDarkMode ? "#2c2c2c" : "#fff"};
+          color: ${isDarkMode ? "#e0e0e0" : "#000"};
+          padding: 20px;
+          max-width: 600px;
+          width: 90%;
+          border-radius: 8px;
+          position: relative;
+          overflow-y: auto;
+          max-height: 90vh;
+          border: ${isDarkMode ? "1px solid #444" : "1px solid #ccc"};
+        `;
+      let adminModal = document.getElementById("adminPanelModal");
+
+      if (!adminModal) {
+        adminModal = document.createElement("div");
+        adminModal.id = "adminPanelModal";
+        adminModal.style.cssText = `
+            position: fixed;
+            top: 0;
+            left: 0;
+            width: 100vw;
+            height: 100vh;
+            background-color: ${overlayBackground};
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            z-index: 3000;
+          `;
+        // Added a version number next to "Admin Panel"
+        adminModal.innerHTML = `
+          <div class="modal-content" style="${modalContentStyles}">
+            <span id="closeAdminPanel" style="position: absolute; top: 10px; right: 10px; cursor: pointer; font-size: 24px;">&times;</span>
+            <h3>
+              <h3>${adminTitle}</h3>
+            </h3>
+            <form id="adminPanelForm">
+              <fieldset style="margin-bottom: 15px;">
+                <legend>User Management</legend>
+                <div style="display: flex; gap: 10px;">
+                  <button type="button" id="adminOpenAddUser" class="btn btn-success">Add User</button>
+                  <button type="button" id="adminOpenRemoveUser" class="btn btn-danger">Remove User</button>
+                  <button type="button" id="adminOpenUserPermissions" class="btn btn-secondary">User Permissions</button>
+                </div>
+              </fieldset>
+              <fieldset style="margin-bottom: 15px;">
+                <legend>OIDC Configuration</legend>
+                <div class="form-group">
+                  <label for="oidcProviderUrl">OIDC Provider URL:</label>
+                  <input type="text" id="oidcProviderUrl" class="form-control" value="${window.currentOIDCConfig.providerUrl}" />
+                </div>
+                <div class="form-group">
+                  <label for="oidcClientId">OIDC Client ID:</label>
+                  <input type="text" id="oidcClientId" class="form-control" value="${window.currentOIDCConfig.clientId}" />
+                </div>
+                <div class="form-group">
+                  <label for="oidcClientSecret">OIDC Client Secret:</label>
+                  <input type="text" id="oidcClientSecret" class="form-control" value="${window.currentOIDCConfig.clientSecret}" />
+                </div>
+                <div class="form-group">
+                  <label for="oidcRedirectUri">OIDC Redirect URI:</label>
+                  <input type="text" id="oidcRedirectUri" class="form-control" value="${window.currentOIDCConfig.redirectUri}" />
+                </div>
+              </fieldset>
+              <fieldset style="margin-bottom: 15px;">
+                <legend>Global TOTP Settings</legend>
+                <div class="form-group">
+                  <label for="globalOtpauthUrl">Global OTPAuth URL:</label>
+                  <input type="text" id="globalOtpauthUrl" class="form-control" value="${window.currentOIDCConfig.globalOtpauthUrl || 'otpauth://totp/{label}?secret={secret}&issuer=FileRise'}" />
+                </div>
+              </fieldset>
+              <fieldset style="margin-bottom: 15px;">
+                <legend>Login Options</legend>
+                <div class="form-group">
+                  <input type="checkbox" id="disableFormLogin" />
+                  <label for="disableFormLogin">Disable Login Form</label>
+                </div>
+                <div class="form-group">
+                  <input type="checkbox" id="disableBasicAuth" />
+                  <label for="disableBasicAuth">Disable Basic HTTP Auth</label>
+                </div>
+                <div class="form-group">
+                  <input type="checkbox" id="disableOIDCLogin" />
+                  <label for="disableOIDCLogin">Disable OIDC Login</label>
+                </div>
+              </fieldset>
+              <div style="display: flex; justify-content: space-between;">
+                <button type="button" id="cancelAdminSettings" class="btn btn-secondary">Cancel</button>
+                <button type="button" id="saveAdminSettings" class="btn btn-primary">Save Settings</button>
+              </div>
+            </form>
+          </div>
+        `;
+        document.body.appendChild(adminModal);
+
+        document.getElementById("closeAdminPanel").addEventListener("click", closeAdminPanel);
+        adminModal.addEventListener("click", (e) => {
+          if (e.target === adminModal) closeAdminPanel();
+        });
+        document.getElementById("cancelAdminSettings").addEventListener("click", closeAdminPanel);
+        document.getElementById("adminOpenAddUser").addEventListener("click", () => {
+          toggleVisibility("addUserModal", true);
+          document.getElementById("newUsername").focus();
+        });
+        document.getElementById("adminOpenRemoveUser").addEventListener("click", () => {
+          if (typeof window.loadUserList === "function") {
+            window.loadUserList();
+          }
+          toggleVisibility("removeUserModal", true);
+        });
+        // New event binding for the User Permissions button:
+        document.getElementById("adminOpenUserPermissions").addEventListener("click", () => {
+          openUserPermissionsModal();
+        });
+        document.getElementById("saveAdminSettings").addEventListener("click", () => {
+          const disableFormLoginCheckbox = document.getElementById("disableFormLogin");
+          const disableBasicAuthCheckbox = document.getElementById("disableBasicAuth");
+          const disableOIDCLoginCheckbox = document.getElementById("disableOIDCLogin");
+          const totalDisabled = [disableFormLoginCheckbox, disableBasicAuthCheckbox, disableOIDCLoginCheckbox].filter(cb => cb.checked).length;
+          if (totalDisabled === 3) {
+            showToast("At least one login method must remain enabled.");
+            disableOIDCLoginCheckbox.checked = false;
+            localStorage.setItem("disableOIDCLogin", "false");
+            if (typeof window.updateLoginOptionsUI === "function") {
+              window.updateLoginOptionsUI({
+                disableFormLogin: disableFormLoginCheckbox.checked,
+                disableBasicAuth: disableBasicAuthCheckbox.checked,
+                disableOIDCLogin: disableOIDCLoginCheckbox.checked
+              });
+            }
+            return;
+          }
+          const newOIDCConfig = {
+            providerUrl: document.getElementById("oidcProviderUrl").value.trim(),
+            clientId: document.getElementById("oidcClientId").value.trim(),
+            clientSecret: document.getElementById("oidcClientSecret").value.trim(),
+            redirectUri: document.getElementById("oidcRedirectUri").value.trim()
+          };
+          const disableFormLogin = disableFormLoginCheckbox.checked;
+          const disableBasicAuth = disableBasicAuthCheckbox.checked;
+          const disableOIDCLogin = disableOIDCLoginCheckbox.checked;
+          const globalOtpauthUrl = document.getElementById("globalOtpauthUrl").value.trim();
+          sendRequest("updateConfig.php", "POST", {
+            oidc: newOIDCConfig,
+            disableFormLogin,
+            disableBasicAuth,
+            disableOIDCLogin,
+            globalOtpauthUrl
+          }, { "X-CSRF-Token": window.csrfToken })
+            .then(response => {
+              if (response.success) {
+                showToast("Settings updated successfully.");
+                localStorage.setItem("disableFormLogin", disableFormLogin);
+                localStorage.setItem("disableBasicAuth", disableBasicAuth);
+                localStorage.setItem("disableOIDCLogin", disableOIDCLogin);
+                if (typeof window.updateLoginOptionsUI === "function") {
+                  window.updateLoginOptionsUI({ disableFormLogin, disableBasicAuth, disableOIDCLogin });
+                }
+                closeAdminPanel();
+              } else {
+                showToast("Error updating settings: " + (response.error || "Unknown error"));
+              }
+            })
+            .catch(() => { });
+        });
+        const disableFormLoginCheckbox = document.getElementById("disableFormLogin");
+        const disableBasicAuthCheckbox = document.getElementById("disableBasicAuth");
+        const disableOIDCLoginCheckbox = document.getElementById("disableOIDCLogin");
+        function enforceLoginOptionConstraint(changedCheckbox) {
+          const totalDisabled = [disableFormLoginCheckbox, disableBasicAuthCheckbox, disableOIDCLoginCheckbox].filter(cb => cb.checked).length;
+          if (changedCheckbox.checked && totalDisabled === 3) {
+            showToast("At least one login method must remain enabled.");
+            changedCheckbox.checked = false;
+          }
+        }
+        disableFormLoginCheckbox.addEventListener("change", function () { enforceLoginOptionConstraint(this); });
+        disableBasicAuthCheckbox.addEventListener("change", function () { enforceLoginOptionConstraint(this); });
+        disableOIDCLoginCheckbox.addEventListener("change", function () { enforceLoginOptionConstraint(this); });
+
+        document.getElementById("disableFormLogin").checked = config.loginOptions.disableFormLogin === true;
+        document.getElementById("disableBasicAuth").checked = config.loginOptions.disableBasicAuth === true;
+        document.getElementById("disableOIDCLogin").checked = config.loginOptions.disableOIDCLogin === true;
+      } else {
+        adminModal.style.backgroundColor = overlayBackground;
+        const modalContent = adminModal.querySelector(".modal-content");
+        if (modalContent) {
+          modalContent.style.background = isDarkMode ? "#2c2c2c" : "#fff";
+          modalContent.style.color = isDarkMode ? "#e0e0e0" : "#000";
+          modalContent.style.border = isDarkMode ? "1px solid #444" : "1px solid #ccc";
+        }
+        document.getElementById("oidcProviderUrl").value = window.currentOIDCConfig.providerUrl;
+        document.getElementById("oidcClientId").value = window.currentOIDCConfig.clientId;
+        document.getElementById("oidcClientSecret").value = window.currentOIDCConfig.clientSecret;
+        document.getElementById("oidcRedirectUri").value = window.currentOIDCConfig.redirectUri;
+        document.getElementById("globalOtpauthUrl").value = window.currentOIDCConfig.globalOtpauthUrl || 'otpauth://totp/{label}?secret={secret}&issuer=FileRise';
+        document.getElementById("disableFormLogin").checked = config.loginOptions.disableFormLogin === true;
+        document.getElementById("disableBasicAuth").checked = config.loginOptions.disableBasicAuth === true;
+        document.getElementById("disableOIDCLogin").checked = config.loginOptions.disableOIDCLogin === true;
+        adminModal.style.display = "flex";
+      }
+    })
+    .catch(() => {
+      let adminModal = document.getElementById("adminPanelModal");
+      if (adminModal) {
+        adminModal.style.backgroundColor = "rgba(0,0,0,0.5)";
+        const modalContent = adminModal.querySelector(".modal-content");
+        if (modalContent) {
+          modalContent.style.background = "#fff";
+          modalContent.style.color = "#000";
+          modalContent.style.border = "1px solid #ccc";
+        }
+        document.getElementById("oidcProviderUrl").value = window.currentOIDCConfig.providerUrl;
+        document.getElementById("oidcClientId").value = window.currentOIDCConfig.clientId;
+        document.getElementById("oidcClientSecret").value = window.currentOIDCConfig.clientSecret;
+        document.getElementById("oidcRedirectUri").value = window.currentOIDCConfig.redirectUri;
+        document.getElementById("globalOtpauthUrl").value = window.currentOIDCConfig.globalOtpauthUrl || 'otpauth://totp/{label}?secret={secret}&issuer=FileRise';
+        document.getElementById("disableFormLogin").checked = localStorage.getItem("disableFormLogin") === "true";
+        document.getElementById("disableBasicAuth").checked = localStorage.getItem("disableBasicAuth") === "true";
+        document.getElementById("disableOIDCLogin").checked = localStorage.getItem("disableOIDCLogin") === "true";
+        adminModal.style.display = "flex";
+      } else {
+        openAdminPanel();
+      }
+    });
+}
+
+export function closeAdminPanel() {
+  const adminModal = document.getElementById("adminPanelModal");
+  if (adminModal) adminModal.style.display = "none";
+}
+
+// --- New: User Permissions Modal ---
+
+export function openUserPermissionsModal() {
+  let userPermissionsModal = document.getElementById("userPermissionsModal");
+  const isDarkMode = document.body.classList.contains("dark-mode");
+  const overlayBackground = isDarkMode ? "rgba(0,0,0,0.7)" : "rgba(0,0,0,0.3)";
+  const modalContentStyles = `
+      background: ${isDarkMode ? "#2c2c2c" : "#fff"};
+      color: ${isDarkMode ? "#e0e0e0" : "#000"};
+      padding: 20px;
+      max-width: 500px;
+      width: 90%;
+      border-radius: 8px;
+      position: relative;
+    `;
+
+  if (!userPermissionsModal) {
+    userPermissionsModal = document.createElement("div");
+    userPermissionsModal.id = "userPermissionsModal";
+    userPermissionsModal.style.cssText = `
+        position: fixed;
+        top: 0;
+        left: 0;
+        width: 100vw;
+        height: 100vh;
+        background-color: ${overlayBackground};
+        display: flex;
+        justify-content: center;
+        align-items: center;
+        z-index: 3500;
+      `;
+    userPermissionsModal.innerHTML = `
+        <div class="modal-content" style="${modalContentStyles}">
+          <span id="closeUserPermissionsModal" style="position: absolute; top: 10px; right: 10px; cursor: pointer; font-size: 24px;">&times;</span>
+          <h3>User Permissions</h3>
+          <div id="userPermissionsList" style="max-height: 300px; overflow-y: auto; margin-bottom: 15px;">
+            <!-- User rows will be loaded here -->
+          </div>
+          <div style="display: flex; justify-content: flex-end; gap: 10px;">
+            <button type="button" id="cancelUserPermissionsBtn" class="btn btn-secondary">Cancel</button>
+            <button type="button" id="saveUserPermissionsBtn" class="btn btn-primary">Save Permissions</button>
+          </div>
+        </div>
+      `;
+    document.body.appendChild(userPermissionsModal);
+    document.getElementById("closeUserPermissionsModal").addEventListener("click", () => {
+      userPermissionsModal.style.display = "none";
+    });
+    document.getElementById("cancelUserPermissionsBtn").addEventListener("click", () => {
+      userPermissionsModal.style.display = "none";
+    });
+    document.getElementById("saveUserPermissionsBtn").addEventListener("click", () => {
+      // Collect permissions data from each user row.
+      const rows = userPermissionsModal.querySelectorAll(".user-permission-row");
+      const permissionsData = [];
+      rows.forEach(row => {
+        const username = row.getAttribute("data-username");
+        const folderOnlyCheckbox = row.querySelector("input[data-permission='folderOnly']");
+        const readOnlyCheckbox = row.querySelector("input[data-permission='readOnly']");
+        const disableUploadCheckbox = row.querySelector("input[data-permission='disableUpload']");
+        permissionsData.push({
+          username,
+          folderOnly: folderOnlyCheckbox.checked,
+          readOnly: readOnlyCheckbox.checked,
+          disableUpload: disableUploadCheckbox.checked
+        });
+      });
+      // Send the permissionsData to the server.
+      sendRequest("updateUserPermissions.php", "POST", { permissions: permissionsData }, { "X-CSRF-Token": window.csrfToken })
+        .then(response => {
+          if (response.success) {
+            showToast("User permissions updated successfully.");
+            userPermissionsModal.style.display = "none";
+          } else {
+            showToast("Error updating permissions: " + (response.error || "Unknown error"));
+          }
+        })
+        .catch(() => {
+          showToast("Error updating permissions.");
+        });
+    });
+  } else {
+    userPermissionsModal.style.display = "flex";
+  }
+  // Load the list of users into the modal.
+  loadUserPermissionsList();
+}
+
+function loadUserPermissionsList() {
+  const listContainer = document.getElementById("userPermissionsList");
+  if (!listContainer) return;
+  listContainer.innerHTML = "";
+
+  // First, fetch the current permissions from the server.
+  fetch("getUserPermissions.php", { credentials: "include" })
+    .then(response => response.json())
+    .then(permissionsData => {
+      // Then, fetch the list of users.
+      return fetch("getUsers.php", { credentials: "include" })
+        .then(response => response.json())
+        .then(usersData => {
+          const users = Array.isArray(usersData) ? usersData : (usersData.users || []);
+          if (users.length === 0) {
+            listContainer.innerHTML = "<p>No users found.</p>";
+            return;
+          }
+          users.forEach(user => {
+            // Skip admin users.
+            if ((user.role && user.role === "1") || user.username.toLowerCase() === "admin") return;
+
+            // Use stored permissions if available; otherwise fall back to localStorage defaults.
+            const defaultPerm = {
+              folderOnly: localStorage.getItem("folderOnly") === "true",
+              readOnly: localStorage.getItem("readOnly") === "true",
+              disableUpload: localStorage.getItem("disableUpload") === "true"
+            };
+            const userPerm = (permissionsData && typeof permissionsData === "object" && permissionsData[user.username]) || defaultPerm;
+
+            // Create a row for the user.
+            const row = document.createElement("div");
+            row.classList.add("user-permission-row");
+            row.setAttribute("data-username", user.username);
+            row.style.padding = "10px 0";
+            row.innerHTML = `
+                <div style="font-weight: bold; margin-bottom: 5px;">${user.username}</div>
+                <div style="display: flex; flex-direction: column; gap: 5px;">
+                  <label style="display: flex; align-items: center; gap: 5px;">
+                    <input type="checkbox" data-permission="folderOnly" ${userPerm.folderOnly ? "checked" : ""} />
+                    User Folder Only
+                  </label>
+                  <label style="display: flex; align-items: center; gap: 5px;">
+                    <input type="checkbox" data-permission="readOnly" ${userPerm.readOnly ? "checked" : ""} />
+                    Read Only
+                  </label>
+                  <label style="display: flex; align-items: center; gap: 5px;">
+                    <input type="checkbox" data-permission="disableUpload" ${userPerm.disableUpload ? "checked" : ""} />
+                    Disable Upload
+                  </label>
+                </div>
+                <hr style="margin-top: 10px; border: 0; border-bottom: 1px solid #ccc;">
+              `;
+            listContainer.appendChild(row);
+          });
+        });
+    })
+    .catch(() => {
+      listContainer.innerHTML = "<p>Error loading users.</p>";
+    });
+}

js/domUtils.js

@@ -1,4 +1,6 @@
 // domUtils.js
+import { t } from './i18n.js';
+import { openDownloadModal } from './fileActions.js';
 
 // Basic DOM Helpers
 export function toggleVisibility(elementId, shouldShow) {
@@ -6,7 +8,7 @@ export function toggleVisibility(elementId, shouldShow) {
   if (element) {
     element.style.display = shouldShow ? "block" : "none";
   } else {
-    console.error(`Element with id "${elementId}" not found.`);
+    console.error(t("element_not_found", { id: elementId }));
   }
 }
 
@@ -28,35 +30,39 @@ export function toggleAllCheckboxes(masterCheckbox) {
 }
 
 export function updateFileActionButtons() {
-  const fileListContainer = document.getElementById("fileList");
   const fileCheckboxes = document.querySelectorAll("#fileList .file-checkbox");
   const selectedCheckboxes = document.querySelectorAll("#fileList .file-checkbox:checked");
   const copyBtn = document.getElementById("copySelectedBtn");
   const moveBtn = document.getElementById("moveSelectedBtn");
   const deleteBtn = document.getElementById("deleteSelectedBtn");
   const zipBtn = document.getElementById("downloadZipBtn");
+  const extractZipBtn = document.getElementById("extractZipBtn");
 
   if (fileCheckboxes.length === 0) {
     if (copyBtn) copyBtn.style.display = "none";
     if (moveBtn) moveBtn.style.display = "none";
     if (deleteBtn) deleteBtn.style.display = "none";
     if (zipBtn) zipBtn.style.display = "none";
+    if (extractZipBtn) extractZipBtn.style.display = "none";
   } else {
     if (copyBtn) copyBtn.style.display = "inline-block";
     if (moveBtn) moveBtn.style.display = "inline-block";
     if (deleteBtn) deleteBtn.style.display = "inline-block";
     if (zipBtn) zipBtn.style.display = "inline-block";
+    if (extractZipBtn) extractZipBtn.style.display = "inline-block";
 
-    if (selectedCheckboxes.length > 0) {
-      if (copyBtn) copyBtn.disabled = false;
-      if (moveBtn) moveBtn.disabled = false;
-      if (deleteBtn) deleteBtn.disabled = false;
-      if (zipBtn) zipBtn.disabled = false;
-    } else {
-      if (copyBtn) copyBtn.disabled = true;
-      if (moveBtn) moveBtn.disabled = true;
-      if (deleteBtn) deleteBtn.disabled = true;
-      if (zipBtn) zipBtn.disabled = true;
+    const anySelected = selectedCheckboxes.length > 0;
+    if (copyBtn) copyBtn.disabled = !anySelected;
+    if (moveBtn) moveBtn.disabled = !anySelected;
+    if (deleteBtn) deleteBtn.disabled = !anySelected;
+    if (zipBtn) zipBtn.disabled = !anySelected;
+
+    if (extractZipBtn) {
+      // Enable only if at least one selected file ends with .zip (case-insensitive).
+      const anyZipSelected = Array.from(selectedCheckboxes).some(chk =>
+        chk.value.toLowerCase().endsWith(".zip")
+      );
+      extractZipBtn.disabled = !anyZipSelected;
     }
   }
 }
@@ -93,7 +99,7 @@ export function buildSearchAndPaginationControls({ currentPage, totalPages, sear
               <i class="material-icons">search</i>
             </span>
           </div>
-          <input type="text" id="searchInput" class="form-control" placeholder="Search files..." value="${safeSearchTerm}" aria-describedby="searchIcon">
+          <input type="text" id="searchInput" class="form-control" placeholder="${t("search_placeholder")}" value="${safeSearchTerm}" aria-describedby="searchIcon">
         </div>
       </div>
       <div class="col-12 col-md-4 text-left">
@@ -113,11 +119,11 @@ export function buildFileTableHeader(sortOrder) {
       <thead>
         <tr>
           <th class="checkbox-col"><input type="checkbox" id="selectAll" onclick="toggleAllCheckboxes(this)"></th>
-          <th data-column="name" class="sortable-col">File Name ${sortOrder.column === "name" ? (sortOrder.ascending ? "▲" : "▼") : ""}</th>
-          <th data-column="modified" class="hide-small sortable-col">Date Modified ${sortOrder.column === "modified" ? (sortOrder.ascending ? "▲" : "▼") : ""}</th>
-          <th data-column="uploaded" class="hide-small hide-medium sortable-col">Upload Date ${sortOrder.column === "uploaded" ? (sortOrder.ascending ? "▲" : "▼") : ""}</th>
-          <th data-column="size" class="hide-small sortable-col">File Size ${sortOrder.column === "size" ? (sortOrder.ascending ? "▲" : "▼") : ""}</th>
-          <th data-column="uploader" class="hide-small hide-medium sortable-col">Uploader ${sortOrder.column === "uploader" ? (sortOrder.ascending ? "▲" : "▼") : ""}</th>
+          <th data-column="name" class="sortable-col">${t("file_name")} ${sortOrder.column === "name" ? (sortOrder.ascending ? "▲" : "▼") : ""}</th>
+          <th data-column="modified" class="hide-small sortable-col">${t("date_modified")} ${sortOrder.column === "modified" ? (sortOrder.ascending ? "▲" : "▼") : ""}</th>
+          <th data-column="uploaded" class="hide-small hide-medium sortable-col">${t("upload_date")} ${sortOrder.column === "uploaded" ? (sortOrder.ascending ? "▲" : "▼") : ""}</th>
+          <th data-column="size" class="hide-small sortable-col">${t("file_size")} ${sortOrder.column === "size" ? (sortOrder.ascending ? "▲" : "▼") : ""}</th>
+          <th data-column="uploader" class="hide-small hide-medium sortable-col">${t("uploader")} ${sortOrder.column === "uploader" ? (sortOrder.ascending ? "▲" : "▼") : ""}</th>
           <th>Actions</th>
         </tr>
       </thead>
@@ -132,18 +138,20 @@ export function buildFileTableRow(file, folderPath) {
   const safeUploader = escapeHTML(file.uploader || "Unknown");
 
   let previewButton = "";
-  if (/\.(jpg|jpeg|png|gif|bmp|webp|svg|ico|tif|tiff|eps|heic|pdf|mp4|webm|mov|ogg)$/i.test(file.name)) {
+  if (/\.(jpg|jpeg|png|gif|bmp|webp|svg|ico|tif|tiff|eps|heic|pdf|mp4|webm|mov|mp3|wav|m4a|ogg|flac|aac|wma|opus|mkv|ogv)$/i.test(file.name)) {
     let previewIcon = "";
     if (/\.(jpg|jpeg|png|gif|bmp|webp|svg|ico|tif|tiff|eps|heic)$/i.test(file.name)) {
       previewIcon = `<i class="material-icons">image</i>`;
-    } else if (/\.(mp4|webm|mov|ogg)$/i.test(file.name)) {
+    } else if (/\.(mp4|mkv|webm|mov|ogv)$/i.test(file.name)) {
       previewIcon = `<i class="material-icons">videocam</i>`;
     } else if (/\.pdf$/i.test(file.name)) {
       previewIcon = `<i class="material-icons">picture_as_pdf</i>`;
+    } else if (/\.(mp3|wav|m4a|ogg|flac|aac|wma|opus)$/i.test(file.name)) {
+      previewIcon = `<i class="material-icons">audiotrack</i>`;
     }
     previewButton = `<button class="btn btn-sm btn-info preview-btn" onclick="event.stopPropagation(); previewFile('${folderPath + encodeURIComponent(file.name)}', '${safeFileName}')">
-               ${previewIcon}
-             </button>`;
+                 ${previewIcon}
+               </button>`;
   }
 
   return `
@@ -151,18 +159,18 @@ export function buildFileTableRow(file, folderPath) {
     <td>
       <input type="checkbox" class="file-checkbox" value="${safeFileName}" onclick="event.stopPropagation(); updateRowHighlight(this);">
     </td>
-    <td>${safeFileName}</td>
+    <td class="file-name-cell">${safeFileName}</td>
     <td class="hide-small nowrap">${safeModified}</td>
     <td class="hide-small hide-medium nowrap">${safeUploaded}</td>
     <td class="hide-small nowrap">${safeSize}</td>
     <td class="hide-small hide-medium nowrap">${safeUploader}</td>
     <td>
       <div class="button-wrap" style="display: flex; justify-content: left; gap: 5px;">
-        <a class="btn btn-sm btn-success download-btn" 
-           href="download.php?folder=${encodeURIComponent(file.folder || 'root')}&file=${encodeURIComponent(file.name)}" 
-           title="Download">
-          <i class="material-icons">file_download</i>
-        </a>
+        <button type="button" class="btn btn-sm btn-success download-btn" 
+          onclick="openDownloadModal('${file.name}', '${file.folder || 'root'}')" 
+          title="Download">
+        <i class="material-icons">file_download</i>
+        </button>
         ${file.editable ? `
           <button class="btn btn-sm edit-btn" 
                   onclick='editFile(${JSON.stringify(file.name)}, ${JSON.stringify(file.folder || "root")})'
@@ -215,94 +223,111 @@ export function updateRowHighlight(checkbox) {
 }
 
 export function toggleRowSelection(event, fileName) {
+  // Prevent default text selection when shift is held.
+  if (event.shiftKey) {
+    event.preventDefault();
+  }
+
+  // Ignore clicks on interactive elements.
   const targetTag = event.target.tagName.toLowerCase();
-  if (targetTag === 'a' || targetTag === 'button' || targetTag === 'input') {
+  if (["a", "button", "input"].includes(targetTag)) {
     return;
   }
+
+  // Get the clicked row and its checkbox.
   const row = event.currentTarget;
-  const checkbox = row.querySelector('.file-checkbox');
+  const checkbox = row.querySelector(".file-checkbox");
   if (!checkbox) return;
-  checkbox.checked = !checkbox.checked;
-  updateRowHighlight(checkbox);
+
+  // Get all rows in the current file list view.
+  const allRows = Array.from(document.querySelectorAll("#fileList tbody tr"));
+
+  // Helper: clear all selections (not used in this updated version).
+  const clearAllSelections = () => {
+    allRows.forEach(r => {
+      const cb = r.querySelector(".file-checkbox");
+      if (cb) {
+        cb.checked = false;
+        updateRowHighlight(cb);
+      }
+    });
+  };
+
+  // If the user is holding the Shift key, perform range selection.
+  if (event.shiftKey) {
+    // Use the last clicked row as the anchor.
+    const lastRow = window.lastSelectedFileRow || row;
+    const currentIndex = allRows.indexOf(row);
+    const lastIndex = allRows.indexOf(lastRow);
+    const start = Math.min(currentIndex, lastIndex);
+    const end = Math.max(currentIndex, lastIndex);
+
+    // If neither CTRL nor Meta is pressed, you might choose
+    // to clear existing selections. For this example we leave existing selections intact.
+    for (let i = start; i <= end; i++) {
+      const cb = allRows[i].querySelector(".file-checkbox");
+      if (cb) {
+        cb.checked = true;
+        updateRowHighlight(cb);
+      }
+    }
+  }
+  // Otherwise, for all non-shift clicks simply toggle the selected state.
+  else {
+    checkbox.checked = !checkbox.checked;
+    updateRowHighlight(checkbox);
+  }
+
+  // Update the anchor row to the row that was clicked.
+  window.lastSelectedFileRow = row;
   updateFileActionButtons();
 }
 
-export function previewFile(fileUrl, fileName) {
-  let modal = document.getElementById("filePreviewModal");
-  if (!modal) {
-    modal = document.createElement("div");
-    modal.id = "filePreviewModal";
-    Object.assign(modal.style, {
-      display: "none",
-      position: "fixed",
-      top: "0",
-      left: "0",
-      width: "100vw",
-      height: "100vh",
-      backgroundColor: "rgba(0,0,0,0.7)",
-      display: "flex",
-      justifyContent: "center",
-      alignItems: "center",
-      zIndex: "1000"
-    });
-    modal.innerHTML = `
-      <div class="modal-content image-preview-modal-content">
-        <span id="closeFileModal" class="close-image-modal">&times;</span>
-        <h4 class="image-modal-header"></h4>
-        <div class="file-preview-container"></div>
-      </div>`;
-    document.body.appendChild(modal);
-
-    document.getElementById("closeFileModal").addEventListener("click", function () {
-      const video = modal.querySelector("video");
-      if (video) {
-        video.pause();
-        video.currentTime = 0;
-      }
-      modal.style.display = "none";
-    });
-
-    modal.addEventListener("click", function (e) {
-      if (e.target === modal) {
-        const video = modal.querySelector("video");
-        if (video) {
-          video.pause();
-          video.currentTime = 0;
+export function attachEnterKeyListener(modalId, buttonId) {
+  const modal = document.getElementById(modalId);
+  if (modal) {
+    // Make the modal focusable
+    modal.setAttribute("tabindex", "-1");
+    modal.focus();
+    modal.addEventListener("keydown", function (e) {
+      if (e.key === "Enter") {
+        e.preventDefault();
+        const btn = document.getElementById(buttonId);
+        if (btn) {
+          btn.click();
         }
-        modal.style.display = "none";
       }
     });
   }
+}
 
-  modal.querySelector("h4").textContent = fileName;
-  const container = modal.querySelector(".file-preview-container");
-  container.innerHTML = "";
+export function showCustomConfirmModal(message) {
+  return new Promise((resolve) => {
+    const modal = document.getElementById("customConfirmModal");
+    const messageElem = document.getElementById("confirmMessage");
+    const yesBtn = document.getElementById("confirmYesBtn");
+    const noBtn = document.getElementById("confirmNoBtn");
 
-  const extension = fileName.split('.').pop().toLowerCase();
+    messageElem.textContent = message;
+    modal.style.display = "block";
 
-  if (/\.(jpg|jpeg|png|gif|bmp|webp|svg|ico|tif|tiff|eps|heic)$/i.test(fileName)) {
-    const img = document.createElement("img");
-    img.src = fileUrl;
-    img.className = "image-modal-img";
-    container.appendChild(img);
-  } else if (extension === "pdf") {
-    const embed = document.createElement("embed");
-    const separator = fileUrl.indexOf('?') === -1 ? '?' : '&';
-    embed.src = fileUrl + separator + 't=' + new Date().getTime();
-    embed.type = "application/pdf";
-    embed.style.width = "80vw";
-    embed.style.height = "80vh";
-    embed.style.border = "none";
-    container.appendChild(embed);
-  } else if (/\.(mp4|webm|mov|ogg)$/i.test(fileName)) {
-    const video = document.createElement("video");
-    video.src = fileUrl;
-    video.controls = true;
-    video.className = "image-modal-img";
-    container.appendChild(video);
-  } else {
-    container.textContent = "Preview not available for this file type.";
-  }
+    // Cleanup function to hide the modal and remove event listeners.
+    function cleanup() {
+      modal.style.display = "none";
+      yesBtn.removeEventListener("click", onYes);
+      noBtn.removeEventListener("click", onNo);
+    }
 
-  modal.style.display = "flex";
+    function onYes() {
+      cleanup();
+      resolve(true);
+    }
+    function onNo() {
+      cleanup();
+      resolve(false);
+    }
+
+    yesBtn.addEventListener("click", onYes);
+    noBtn.addEventListener("click", onNo);
+  });
 }

js/dragAndDrop.js

@@ -0,0 +1,599 @@
+// dragAndDrop.js
+// This file handles drag-and-drop functionality for cards in the sidebar, header and top drop zones.
+// It also manages the visibility of the sidebar and header drop zones based on the current state of the application.
+// It includes functions to save and load the order of cards in the sidebar and header from localStorage.
+// It also includes functions to handle the drag-and-drop events, including mouse movements and drop zones.
+// It uses CSS classes to manage the appearance of the sidebar and header drop zones during drag-and-drop operations.
+
+// Moves cards into the sidebar based on the saved order in localStorage.
+export function loadSidebarOrder() {
+    const sidebar = document.getElementById('sidebarDropArea');
+    if (!sidebar) return;
+    const orderStr = localStorage.getItem('sidebarOrder');
+    if (orderStr) {
+      const order = JSON.parse(orderStr);
+      if (order.length > 0) {
+        // Ensure main wrapper is visible.
+        const mainWrapper = document.querySelector('.main-wrapper');
+        if (mainWrapper) {
+          mainWrapper.style.display = 'flex';
+        }
+        // For each saved ID, move the card into the sidebar.
+        order.forEach(id => {
+          const card = document.getElementById(id);
+          if (card && card.parentNode.id !== 'sidebarDropArea') {
+            sidebar.appendChild(card);
+            // Animate vertical slide for sidebar card
+            animateVerticalSlide(card);
+          }
+        });
+      }
+    }
+    updateSidebarVisibility();
+  }
+  
+  // NEW: Load header order from localStorage.
+  export function loadHeaderOrder() {
+    const headerDropArea = document.getElementById('headerDropArea');
+    if (!headerDropArea) return;
+    const orderStr = localStorage.getItem('headerOrder');
+    if (orderStr) {
+      const order = JSON.parse(orderStr);
+      if (order.length > 0) {
+        order.forEach(id => {
+          const card = document.getElementById(id);
+          // Only load if card is not already in header drop zone.
+          if (card && card.parentNode.id !== 'headerDropArea') {
+            insertCardInHeader(card, null);
+          }
+        });
+      }
+    }
+  }
+  
+  // Internal helper: update sidebar visibility based on its content.
+  function updateSidebarVisibility() {
+    const sidebar = document.getElementById('sidebarDropArea');
+    if (sidebar) {
+      const cards = sidebar.querySelectorAll('#uploadCard, #folderManagementCard');
+      if (cards.length > 0) {
+        sidebar.classList.add('active');
+        sidebar.style.display = 'block';
+      } else {
+        sidebar.classList.remove('active');
+        sidebar.style.display = 'none';
+      }
+      // Save the current order in localStorage.
+      saveSidebarOrder();
+    }
+  }
+  
+  // NEW: Save header order to localStorage.
+  function saveHeaderOrder() {
+    const headerDropArea = document.getElementById('headerDropArea');
+    if (headerDropArea) {
+      const icons = Array.from(headerDropArea.children);
+      // Each header icon stores its associated card in the property cardElement.
+      const order = icons.map(icon => icon.cardElement.id);
+      localStorage.setItem('headerOrder', JSON.stringify(order));
+    }
+  }
+  
+  // Internal helper: update top zone layout (center a card if one column is empty).
+  function updateTopZoneLayout() {
+    const leftCol = document.getElementById('leftCol');
+    const rightCol = document.getElementById('rightCol');
+  
+    const leftIsEmpty = !leftCol.querySelector('#uploadCard');
+    const rightIsEmpty = !rightCol.querySelector('#folderManagementCard');
+  
+    if (leftIsEmpty && !rightIsEmpty) {
+      leftCol.style.display = 'none';
+      rightCol.style.margin = '0 auto';
+    } else if (rightIsEmpty && !leftIsEmpty) {
+      rightCol.style.display = 'none';
+      leftCol.style.margin = '0 auto';
+    } else {
+      leftCol.style.display = '';
+      rightCol.style.display = '';
+      leftCol.style.margin = '';
+      rightCol.style.margin = '';
+    }
+  }
+  
+  // When a card is being dragged, if the top drop zone is empty, set its min-height.
+  function addTopZoneHighlight() {
+    const topZone = document.getElementById('uploadFolderRow');
+    if (topZone) {
+      topZone.classList.add('highlight');
+      if (topZone.querySelectorAll('#uploadCard, #folderManagementCard').length === 0) {
+        topZone.style.minHeight = '375px';
+      }
+    }
+  }
+  
+  // When the drag ends, remove the extra min-height.
+  function removeTopZoneHighlight() {
+    const topZone = document.getElementById('uploadFolderRow');
+    if (topZone) {
+      topZone.classList.remove('highlight');
+      topZone.style.minHeight = '';
+    }
+  }
+  
+  // Vertical slide/fade animation helper.
+  function animateVerticalSlide(card) {
+    card.style.transform = 'translateY(30px)';
+    card.style.opacity = '0';
+    // Force reflow.
+    card.offsetWidth;
+    requestAnimationFrame(() => {
+      card.style.transition = 'transform 0.3s ease, opacity 0.3s ease';
+      card.style.transform = 'translateY(0)';
+      card.style.opacity = '1';
+    });
+    setTimeout(() => {
+      card.style.transition = '';
+      card.style.transform = '';
+      card.style.opacity = '';
+    }, 310);
+  }
+  
+  // Internal helper: insert card into sidebar at a proper position based on event.clientY.
+  function insertCardInSidebar(card, event) {
+    const sidebar = document.getElementById('sidebarDropArea');
+    if (!sidebar) return;
+    const existingCards = Array.from(sidebar.querySelectorAll('#uploadCard, #folderManagementCard'));
+    let inserted = false;
+    for (const currentCard of existingCards) {
+      const rect = currentCard.getBoundingClientRect();
+      const midY = rect.top + rect.height / 2;
+      if (event.clientY < midY) {
+        sidebar.insertBefore(card, currentCard);
+        inserted = true;
+        break;
+      }
+    }
+    if (!inserted) {
+      sidebar.appendChild(card);
+    }
+    // Ensure card fills the sidebar.
+    card.style.width = '100%';
+    animateVerticalSlide(card);
+  }
+  
+  // Internal helper: save the current sidebar card order to localStorage.
+  function saveSidebarOrder() {
+    const sidebar = document.getElementById('sidebarDropArea');
+    if (sidebar) {
+      const cards = sidebar.querySelectorAll('#uploadCard, #folderManagementCard');
+      const order = Array.from(cards).map(card => card.id);
+      localStorage.setItem('sidebarOrder', JSON.stringify(order));
+    }
+  }
+  
+  // Helper: move cards from sidebar back to the top drop area when on small screens.
+  function moveSidebarCardsToTop() {
+    if (window.innerWidth < 1205) {
+      const sidebar = document.getElementById('sidebarDropArea');
+      if (!sidebar) return;
+      const cards = Array.from(sidebar.querySelectorAll('#uploadCard, #folderManagementCard'));
+      cards.forEach(card => {
+        const orig = document.getElementById(card.dataset.originalContainerId);
+        if (orig) {
+          orig.appendChild(card);
+          animateVerticalSlide(card);
+        }
+      });
+      updateSidebarVisibility();
+      updateTopZoneLayout();
+    }
+  }
+  
+  // Listen for window resize to automatically move sidebar cards back to top on small screens.
+  window.addEventListener('resize', function () {
+    if (window.innerWidth < 1205) {
+      moveSidebarCardsToTop();
+    }
+  });
+  
+  // This function ensures the top drop zone (#uploadFolderRow) has a stable width when empty.
+  function ensureTopZonePlaceholder() {
+    const topZone = document.getElementById('uploadFolderRow');
+    if (!topZone) return;
+    if (topZone.querySelectorAll('#uploadCard, #folderManagementCard').length === 0) {
+      let placeholder = topZone.querySelector('.placeholder');
+      if (!placeholder) {
+        placeholder = document.createElement('div');
+        placeholder.className = 'placeholder';
+        placeholder.style.visibility = 'hidden';
+        placeholder.style.display = 'block';
+        placeholder.style.width = '100%';
+        placeholder.style.height = '375px';
+        topZone.appendChild(placeholder);
+      }
+    } else {
+      const placeholder = topZone.querySelector('.placeholder');
+      if (placeholder) placeholder.remove();
+    }
+  }
+    
+  // --- NEW HELPER FUNCTIONS FOR HEADER DROP ZONE ---
+  
+  // Show header drop zone and add a "drag-active" class so that the pseudo-element appears.
+  function showHeaderDropZone() {
+    const headerDropArea = document.getElementById('headerDropArea');
+    if (headerDropArea) {
+      headerDropArea.style.display = 'inline-flex';
+      headerDropArea.classList.add('drag-active');
+    }
+  }
+    
+  // Hide header drop zone by removing the "drag-active" class.
+  // If a header icon is present (i.e. a card was dropped), the drop zone remains visible without the dashed border.
+  function hideHeaderDropZone() {
+    const headerDropArea = document.getElementById('headerDropArea');
+    if (headerDropArea) {
+      headerDropArea.classList.remove('drag-active');
+      if (headerDropArea.children.length === 0) {
+        headerDropArea.style.display = 'none';
+      }
+    }
+  }
+    
+  // === NEW FUNCTION: Insert card into header drop zone as a material icon ===
+  function insertCardInHeader(card, event) {
+      const headerDropArea = document.getElementById('headerDropArea');
+      if (!headerDropArea) return;
+      
+      // For folder management and upload cards, preserve the original by moving it to a hidden container.
+      if (card.id === 'folderManagementCard' || card.id === 'uploadCard') {
+        let hiddenContainer = document.getElementById('hiddenCardsContainer');
+        if (!hiddenContainer) {
+          hiddenContainer = document.createElement('div');
+          hiddenContainer.id = 'hiddenCardsContainer';
+          hiddenContainer.style.display = 'none';
+          document.body.appendChild(hiddenContainer);
+        }
+        // Move the original card to the hidden container if it's not already there.
+        if (card.parentNode.id !== 'hiddenCardsContainer') {
+          hiddenContainer.appendChild(card);
+        }
+      } else {
+        // For other cards, simply remove from current container.
+        if (card.parentNode) {
+          card.parentNode.removeChild(card);
+        }
+      }
+      
+      // Create the header icon button.
+      const iconButton = document.createElement('button');
+      iconButton.className = 'header-card-icon';
+      // Remove default button styling.
+      iconButton.style.border = 'none';
+      iconButton.style.background = 'none';
+      iconButton.style.outline = 'none';
+      iconButton.style.cursor = 'pointer';
+        
+      // Choose an icon based on the card type with 24px size.
+      if (card.id === 'uploadCard') {
+        iconButton.innerHTML = '<i class="material-icons" style="font-size:24px;">cloud_upload</i>';
+      } else if (card.id === 'folderManagementCard') {
+        iconButton.innerHTML = '<i class="material-icons" style="font-size:24px;">folder</i>';
+      } else {
+        iconButton.innerHTML = '<i class="material-icons" style="font-size:24px;">insert_drive_file</i>';
+      }
+      
+      // Save a reference to the card in the icon button.
+      iconButton.cardElement = card;
+      // Associate this icon with the card for future removal.
+      card.headerIconButton = iconButton;
+      
+      let modal = null;
+      let isLocked = false;
+      let hoverActive = false;
+      
+      // showModal: When triggered, ensure the card is attached to the modal.
+      function showModal() {
+        if (!modal) {
+          modal = document.createElement('div');
+          modal.className = 'header-card-modal';
+          modal.style.position = 'fixed';
+          modal.style.top = '80px';
+          modal.style.right = '80px';
+          modal.style.zIndex = '11000';
+          // Render the modal but initially keep it hidden.
+          modal.style.display = 'block';
+          modal.style.visibility = 'hidden';
+          modal.style.opacity = '0';
+          modal.style.background = 'none';
+          modal.style.border = 'none';
+          modal.style.padding = '0';
+          modal.style.boxShadow = 'none';
+          document.body.appendChild(modal);
+          // Attach modal hover events.
+          modal.addEventListener('mouseover', handleMouseOver);
+          modal.addEventListener('mouseout', handleMouseOut);
+          iconButton.modalInstance = modal;
+        }
+        // If the card isn't already in the modal, remove it from the hidden container and attach it.
+        if (!modal.contains(card)) {
+          const hiddenContainer = document.getElementById('hiddenCardsContainer');
+          if (hiddenContainer && hiddenContainer.contains(card)) {
+            hiddenContainer.removeChild(card);
+          }
+          modal.appendChild(card);
+        }
+        // Reveal the modal.
+        modal.style.visibility = 'visible';
+        modal.style.opacity = '1';
+      }
+      
+      // hideModal: Hide the modal and return the card to the hidden container.
+      function hideModal() {
+        if (modal && !isLocked && !hoverActive) {
+          modal.style.visibility = 'hidden';
+          modal.style.opacity = '0';
+          // Return the card to the hidden container.
+          const hiddenContainer = document.getElementById('hiddenCardsContainer');
+          if (hiddenContainer && modal.contains(card)) {
+            hiddenContainer.appendChild(card);
+          }
+        }
+      }
+      
+      function handleMouseOver() {
+        hoverActive = true;
+        showModal();
+      }
+      
+      function handleMouseOut() {
+        hoverActive = false;
+        setTimeout(() => {
+          if (!hoverActive && !isLocked) {
+            hideModal();
+          }
+        }, 300);
+      }
+      
+      // Attach hover events to the icon.
+      iconButton.addEventListener('mouseover', handleMouseOver);
+      iconButton.addEventListener('mouseout', handleMouseOut);
+      
+      // Toggle the locked state on click so the modal stays open.
+      iconButton.addEventListener('click', (e) => {
+        isLocked = !isLocked;
+        if (isLocked) {
+          showModal();
+        } else {
+          hideModal();
+        }
+        e.stopPropagation();
+      });
+      
+      // Append the header icon button into the header drop zone.
+      headerDropArea.appendChild(iconButton);
+      // Save the updated header order.
+      saveHeaderOrder();
+    }
+    
+  // === Main Drag and Drop Initialization ===
+  export function initDragAndDrop() {
+    function run() {
+      const draggableCards = document.querySelectorAll('#uploadCard, #folderManagementCard');
+      draggableCards.forEach(card => {
+        if (!card.dataset.originalContainerId) {
+          card.dataset.originalContainerId = card.parentNode.id;
+        }
+        const header = card.querySelector('.card-header');
+        if (header) {
+          header.classList.add('drag-header');
+        }
+    
+        let isDragging = false;
+        let dragTimer = null;
+        let offsetX = 0, offsetY = 0;
+        let initialLeft, initialTop;
+    
+        if (header) {
+          header.addEventListener('mousedown', function (e) {
+            e.preventDefault();
+            const card = this.closest('.card');
+            // Capture the card's initial bounding rectangle.
+            const initialRect = card.getBoundingClientRect();
+            const originX = ((e.clientX - initialRect.left) / initialRect.width) * 100;
+            const originY = ((e.clientY - initialRect.top) / initialRect.height) * 100;
+            card.style.transformOrigin = `${originX}% ${originY}%`;
+    
+            // Store the initial rect so we use it later.
+            dragTimer = setTimeout(() => {
+              isDragging = true;
+              card.classList.add('dragging');
+              card.style.pointerEvents = 'none';
+              addTopZoneHighlight();
+    
+              const sidebar = document.getElementById('sidebarDropArea');
+              if (sidebar) {
+                sidebar.classList.add('active');
+                sidebar.style.display = 'block';
+                sidebar.classList.add('highlight');
+                sidebar.style.height = '800px';
+              }
+    
+              // Show header drop zone while dragging.
+              showHeaderDropZone();
+    
+              // Use the stored initialRect.
+              initialLeft = initialRect.left + window.pageXOffset;
+              initialTop = initialRect.top + window.pageYOffset;
+              offsetX = e.pageX - initialLeft;
+              offsetY = e.pageY - initialTop;
+    
+              // Remove any associated header icon if present.
+              if (card.headerIconButton) {
+                if (card.headerIconButton.parentNode) {
+                  card.headerIconButton.parentNode.removeChild(card.headerIconButton);
+                }
+                if (card.headerIconButton.modalInstance && card.headerIconButton.modalInstance.parentNode) {
+                  card.headerIconButton.modalInstance.parentNode.removeChild(card.headerIconButton.modalInstance);
+                }
+                card.headerIconButton = null;
+                saveHeaderOrder();
+              }
+    
+              // Append card to body and fix its dimensions.
+              document.body.appendChild(card);
+              card.style.position = 'absolute';
+              card.style.left = initialLeft + 'px';
+              card.style.top = initialTop + 'px';
+              card.style.width = initialRect.width + 'px';
+              card.style.height = initialRect.height + 'px';
+              card.style.minWidth = initialRect.width + 'px';
+              card.style.flexShrink = '0';
+              card.style.zIndex = '10000';
+            }, 500);
+          });
+          header.addEventListener('mouseup', function () {
+            clearTimeout(dragTimer);
+          });
+        }
+    
+        document.addEventListener('mousemove', function (e) {
+          if (isDragging) {
+            card.style.left = (e.pageX - offsetX) + 'px';
+            card.style.top = (e.pageY - offsetY) + 'px';
+          }
+        });
+    
+        document.addEventListener('mouseup', function (e) {
+          if (isDragging) {
+            isDragging = false;
+            card.style.pointerEvents = '';
+            card.classList.remove('dragging');
+            removeTopZoneHighlight();
+    
+            const sidebar = document.getElementById('sidebarDropArea');
+            if (sidebar) {
+              sidebar.classList.remove('highlight');
+              sidebar.style.height = '';
+            }
+    
+            // Remove any existing header icon if present.
+            if (card.headerIconButton) {
+              if (card.headerIconButton.parentNode) {
+                card.headerIconButton.parentNode.removeChild(card.headerIconButton);
+              }
+              if (card.headerIconButton.modalInstance && card.headerIconButton.modalInstance.parentNode) {
+                card.headerIconButton.modalInstance.parentNode.removeChild(card.headerIconButton.modalInstance);
+              }
+              card.headerIconButton = null;
+              saveHeaderOrder();
+            }
+    
+            let droppedInSidebar = false;
+            let droppedInTop = false;
+            let droppedInHeader = false;
+    
+            // Check if dropped in sidebar drop zone.
+            const sidebarElem = document.getElementById('sidebarDropArea');
+            if (sidebarElem) {
+              const rect = sidebarElem.getBoundingClientRect();
+              const dropZoneBottom = rect.top + 800; // Virtual drop zone height.
+              if (
+                e.clientX >= rect.left &&
+                e.clientX <= rect.right &&
+                e.clientY >= rect.top &&
+                e.clientY <= dropZoneBottom
+              ) {
+                insertCardInSidebar(card, e);
+                droppedInSidebar = true;
+              }
+            }
+            // Check the top drop zone.
+            const topRow = document.getElementById('uploadFolderRow');
+            if (!droppedInSidebar && topRow) {
+              const rect = topRow.getBoundingClientRect();
+              if (
+                e.clientX >= rect.left &&
+                e.clientX <= rect.right &&
+                e.clientY >= rect.top &&
+                e.clientY <= rect.bottom
+              ) {
+                let container;
+                if (card.id === 'uploadCard') {
+                  container = document.getElementById('leftCol');
+                } else if (card.id === 'folderManagementCard') {
+                  container = document.getElementById('rightCol');
+                }
+                if (container) {
+                  ensureTopZonePlaceholder();
+                  updateTopZoneLayout();
+                  container.appendChild(card);
+                  droppedInTop = true;
+                  // Set a fixed width during animation.
+                  card.style.width = "363px";
+                  animateVerticalSlide(card);
+                  setTimeout(() => {
+                    card.style.removeProperty('width');
+                  }, 210);
+                }
+              }
+            }
+            // Check the header drop zone.
+            const headerDropArea = document.getElementById('headerDropArea');
+            if (!droppedInSidebar && !droppedInTop && headerDropArea) {
+              const rect = headerDropArea.getBoundingClientRect();
+              if (
+                e.clientX >= rect.left &&
+                e.clientX <= rect.right &&
+                e.clientY >= rect.top &&
+                e.clientY <= rect.bottom
+              ) {
+                insertCardInHeader(card, e);
+                droppedInHeader = true;
+              }
+            }
+            // If card was not dropped in any zone, return it to its original container.
+            if (!droppedInSidebar && !droppedInTop && !droppedInHeader) {
+              const orig = document.getElementById(card.dataset.originalContainerId);
+              if (orig) {
+                orig.appendChild(card);
+                card.style.removeProperty('width');
+              }
+            }
+    
+            // Clear inline drag-related styles.
+            [
+              'position',
+              'left',
+              'top',
+              'z-index',
+              'height',
+              'min-width',
+              'flex-shrink',
+              'transition',
+              'transform',
+              'opacity'
+            ].forEach(prop => card.style.removeProperty(prop));
+    
+            // For sidebar drops, force width to 100%.
+            if (droppedInSidebar) {
+              card.style.width = '100%';
+            }
+    
+            updateTopZoneLayout();
+            updateSidebarVisibility();
+    
+            // Hide header drop zone if no icon is present.
+            hideHeaderDropZone();
+          }
+        });
+      });
+    }
+    
+    if (document.readyState === 'loading') {
+      document.addEventListener('DOMContentLoaded', run);
+    } else {
+      run();
+    }
+  }

js/fileActions.js

@@ -0,0 +1,576 @@
+// fileActions.js
+import { showToast, attachEnterKeyListener } from './domUtils.js';
+import { loadFileList } from './fileListView.js';
+import { formatFolderName } from './fileListView.js';
+import { t } from './i18n.js';
+
+export function handleDeleteSelected(e) {
+  e.preventDefault();
+  e.stopImmediatePropagation();
+  const checkboxes = document.querySelectorAll(".file-checkbox:checked");
+  if (checkboxes.length === 0) {
+    showToast("no_files_selected");
+    return;
+  }
+
+  window.filesToDelete = Array.from(checkboxes).map(chk => chk.value);
+  const count = window.filesToDelete.length;
+  document.getElementById("deleteFilesMessage").textContent = t("confirm_delete_files", { count: count });
+  document.getElementById("deleteFilesModal").style.display = "block";
+  attachEnterKeyListener("deleteFilesModal", "confirmDeleteFiles");
+}
+
+document.addEventListener("DOMContentLoaded", function () {
+  const cancelDelete = document.getElementById("cancelDeleteFiles");
+  if (cancelDelete) {
+    cancelDelete.addEventListener("click", function () {
+      document.getElementById("deleteFilesModal").style.display = "none";
+      window.filesToDelete = [];
+    });
+  }
+
+  const confirmDelete = document.getElementById("confirmDeleteFiles");
+  if (confirmDelete) {
+    confirmDelete.addEventListener("click", function () {
+      fetch("deleteFiles.php", {
+        method: "POST",
+        credentials: "include",
+        headers: {
+          "Content-Type": "application/json",
+          "X-CSRF-Token": window.csrfToken
+        },
+        body: JSON.stringify({ folder: window.currentFolder, files: window.filesToDelete })
+      })
+        .then(response => response.json())
+        .then(data => {
+          if (data.success) {
+            showToast("Selected files deleted successfully!");
+            loadFileList(window.currentFolder);
+          } else {
+            showToast("Error: " + (data.error || "Could not delete files"));
+          }
+        })
+        .catch(error => console.error("Error deleting files:", error))
+        .finally(() => {
+          document.getElementById("deleteFilesModal").style.display = "none";
+          window.filesToDelete = [];
+        });
+    });
+  }
+});
+
+attachEnterKeyListener("downloadZipModal", "confirmDownloadZip");
+export function handleDownloadZipSelected(e) {
+  e.preventDefault();
+  e.stopImmediatePropagation();
+  const checkboxes = document.querySelectorAll(".file-checkbox:checked");
+  if (checkboxes.length === 0) {
+    showToast("No files selected for download.");
+    return;
+  }
+  window.filesToDownload = Array.from(checkboxes).map(chk => chk.value);
+  document.getElementById("downloadZipModal").style.display = "block";
+  setTimeout(() => {
+    const input = document.getElementById("zipFileNameInput");
+    input.focus();
+  }, 100);
+};
+
+export function openDownloadModal(fileName, folder) {
+  // Store file details globally for the download confirmation function.
+  window.singleFileToDownload = fileName;
+  window.currentFolder = folder || "root";
+  
+  // Optionally pre-fill the file name input in the modal.
+  const input = document.getElementById("downloadFileNameInput");
+  if (input) {
+    input.value = fileName; // Use file name as-is (or modify if desired)
+  }
+  
+  // Show the single file download modal (a new modal element).
+  document.getElementById("downloadFileModal").style.display = "block";
+  
+  // Optionally focus the input after a short delay.
+  setTimeout(() => {
+    if (input) input.focus();
+  }, 100);
+}
+
+export function confirmSingleDownload() {
+  // Get the file name from the modal. Users can change it if desired.
+  let fileName = document.getElementById("downloadFileNameInput").value.trim();
+  if (!fileName) {
+    showToast("Please enter a name for the file.");
+    return;
+  }
+  
+  // Hide the download modal.
+  document.getElementById("downloadFileModal").style.display = "none";
+  // Show the progress modal (same as in your ZIP download flow).
+  document.getElementById("downloadProgressModal").style.display = "block";
+  
+  // Build the URL for download.php using GET parameters.
+  const folder = window.currentFolder || "root";
+  const downloadURL = "download.php?folder=" + encodeURIComponent(folder) +
+                      "&file=" + encodeURIComponent(window.singleFileToDownload);
+  
+  fetch(downloadURL, {
+    method: "GET",
+    credentials: "include"
+  })
+    .then(response => {
+      if (!response.ok) {
+        return response.text().then(text => {
+          throw new Error("Failed to download file: " + text);
+        });
+      }
+      return response.blob();
+    })
+    .then(blob => {
+      if (!blob || blob.size === 0) {
+        throw new Error("Received empty file.");
+      }
+      const url = window.URL.createObjectURL(blob);
+      const a = document.createElement("a");
+      a.style.display = "none";
+      a.href = url;
+      a.download = fileName;
+      document.body.appendChild(a);
+      a.click();
+      window.URL.revokeObjectURL(url);
+      a.remove();
+      // Hide the progress modal.
+      document.getElementById("downloadProgressModal").style.display = "none";
+      showToast("Download started.");
+    })
+    .catch(error => {
+      // Hide progress modal and show error.
+      document.getElementById("downloadProgressModal").style.display = "none";
+      console.error("Error downloading file:", error);
+      showToast("Error downloading file: " + error.message);
+    });
+}
+
+export function handleExtractZipSelected(e) {
+  if (e) {
+    e.preventDefault();
+    e.stopImmediatePropagation();
+  }
+  const checkboxes = document.querySelectorAll(".file-checkbox:checked");
+  if (!checkboxes.length) {
+    showToast("No files selected.");
+    return;
+  }
+  const zipFiles = Array.from(checkboxes)
+    .map(chk => chk.value)
+    .filter(name => name.toLowerCase().endsWith(".zip"));
+  if (!zipFiles.length) {
+    showToast("No zip files selected.");
+    return;
+  }
+  
+  // Change progress modal text to "Extracting files..."
+  const progressText = document.querySelector("#downloadProgressModal p");
+  if (progressText) {
+    progressText.textContent = "Extracting files...";
+  }
+  
+  // Show the progress modal.
+  document.getElementById("downloadProgressModal").style.display = "block";
+  
+  fetch("extractZip.php", {
+    method: "POST",
+    credentials: "include",
+    headers: {
+      "Content-Type": "application/json",
+      "X-CSRF-Token": window.csrfToken
+    },
+    body: JSON.stringify({
+      folder: window.currentFolder || "root",
+      files: zipFiles
+    })
+  })
+    .then(response => response.json())
+    .then(data => {
+      // Hide the progress modal once the request has completed.
+      document.getElementById("downloadProgressModal").style.display = "none";
+      if (data.success) {
+        let toastMessage = "Zip file(s) extracted successfully!";
+        if (data.extractedFiles && Array.isArray(data.extractedFiles) && data.extractedFiles.length) {
+          toastMessage = "Extracted: " + data.extractedFiles.join(", ");
+        }
+        showToast(toastMessage);
+        loadFileList(window.currentFolder);
+      } else {
+        showToast("Error extracting zip: " + (data.error || "Unknown error"));
+      }
+    })
+    .catch(error => {
+      // Hide the progress modal on error.
+      document.getElementById("downloadProgressModal").style.display = "none";
+      console.error("Error extracting zip files:", error);
+      showToast("Error extracting zip files.");
+    });
+}
+
+const extractZipBtn = document.getElementById("extractZipBtn");
+if (extractZipBtn) {
+  extractZipBtn.replaceWith(extractZipBtn.cloneNode(true));
+  document.getElementById("extractZipBtn").addEventListener("click", handleExtractZipSelected);
+}
+
+document.addEventListener("DOMContentLoaded", function () {
+  const cancelDownloadZip = document.getElementById("cancelDownloadZip");
+  if (cancelDownloadZip) {
+    cancelDownloadZip.addEventListener("click", function () {
+      document.getElementById("downloadZipModal").style.display = "none";
+    });
+  }
+
+  // This part remains in your confirmDownloadZip event handler:
+  const confirmDownloadZip = document.getElementById("confirmDownloadZip");
+  if (confirmDownloadZip) {
+    confirmDownloadZip.addEventListener("click", function () {
+      let zipName = document.getElementById("zipFileNameInput").value.trim();
+      if (!zipName) {
+        showToast("Please enter a name for the zip file.");
+        return;
+      }
+      if (!zipName.toLowerCase().endsWith(".zip")) {
+        zipName += ".zip";
+      }
+      // Hide the ZIP name input modal
+      document.getElementById("downloadZipModal").style.display = "none";
+      // Show the progress modal here only on confirm
+      console.log("Download confirmed. Showing progress modal.");
+      document.getElementById("downloadProgressModal").style.display = "block";
+      const folder = window.currentFolder || "root";
+      fetch("downloadZip.php", {
+        method: "POST",
+        credentials: "include",
+        headers: {
+          "Content-Type": "application/json",
+          "X-CSRF-Token": window.csrfToken
+        },
+        body: JSON.stringify({ folder: folder, files: window.filesToDownload })
+      })
+        .then(response => {
+          if (!response.ok) {
+            return response.text().then(text => {
+              throw new Error("Failed to create zip file: " + text);
+            });
+          }
+          return response.blob();
+        })
+        .then(blob => {
+          if (!blob || blob.size === 0) {
+            throw new Error("Received empty zip file.");
+          }
+          const url = window.URL.createObjectURL(blob);
+          const a = document.createElement("a");
+          a.style.display = "none";
+          a.href = url;
+          a.download = zipName;
+          document.body.appendChild(a);
+          a.click();
+          window.URL.revokeObjectURL(url);
+          a.remove();
+          // Hide the progress modal after download starts
+          document.getElementById("downloadProgressModal").style.display = "none";
+          showToast("Download started.");
+        })
+        .catch(error => {
+          // Hide the progress modal on error
+          document.getElementById("downloadProgressModal").style.display = "none";
+          console.error("Error downloading zip:", error);
+          showToast("Error downloading selected files as zip: " + error.message);
+        });
+    });
+  }
+});
+
+export function handleCopySelected(e) {
+  e.preventDefault();
+  e.stopImmediatePropagation();
+  const checkboxes = document.querySelectorAll(".file-checkbox:checked");
+  if (checkboxes.length === 0) {
+    showToast("No files selected for copying.", 5000);
+    return;
+  }
+  window.filesToCopy = Array.from(checkboxes).map(chk => chk.value);
+  document.getElementById("copyFilesModal").style.display = "block";
+  loadCopyMoveFolderListForModal("copyTargetFolder");
+}
+
+export async function loadCopyMoveFolderListForModal(dropdownId) {
+  const folderSelect = document.getElementById(dropdownId);
+  folderSelect.innerHTML = "";
+
+  if (window.userFolderOnly) {
+    const username = localStorage.getItem("username") || "root";
+    try {
+      const response = await fetch("getFolderList.php?restricted=1");
+      let folders = await response.json();
+      if (Array.isArray(folders) && folders.length && typeof folders[0] === "object" && folders[0].folder) {
+        folders = folders.map(item => item.folder);
+      }
+      folders = folders.filter(folder =>
+        folder.toLowerCase() !== "trash" &&
+        (folder === username || folder.indexOf(username + "/") === 0)
+      );
+
+      const rootOption = document.createElement("option");
+      rootOption.value = username;
+      rootOption.textContent = formatFolderName(username);
+      folderSelect.appendChild(rootOption);
+
+      folders.forEach(folder => {
+        if (folder !== username) {
+          const option = document.createElement("option");
+          option.value = folder;
+          option.textContent = formatFolderName(folder);
+          folderSelect.appendChild(option);
+        }
+      });
+    } catch (error) {
+      console.error("Error loading folder list for modal:", error);
+    }
+    return;
+  }
+
+  try {
+    const response = await fetch("getFolderList.php");
+    let folders = await response.json();
+    if (Array.isArray(folders) && folders.length && typeof folders[0] === "object" && folders[0].folder) {
+      folders = folders.map(item => item.folder);
+    }
+    folders = folders.filter(folder => folder !== "root" && folder.toLowerCase() !== "trash");
+
+    const rootOption = document.createElement("option");
+    rootOption.value = "root";
+    rootOption.textContent = "(Root)";
+    folderSelect.appendChild(rootOption);
+
+    if (Array.isArray(folders) && folders.length > 0) {
+      folders.forEach(folder => {
+        const option = document.createElement("option");
+        option.value = folder;
+        option.textContent = folder;
+        folderSelect.appendChild(option);
+      });
+    }
+  } catch (error) {
+    console.error("Error loading folder list for modal:", error);
+  }
+}
+
+export function handleMoveSelected(e) {
+  e.preventDefault();
+  e.stopImmediatePropagation();
+  const checkboxes = document.querySelectorAll(".file-checkbox:checked");
+  if (checkboxes.length === 0) {
+    showToast("No files selected for moving.");
+    return;
+  }
+  window.filesToMove = Array.from(checkboxes).map(chk => chk.value);
+  document.getElementById("moveFilesModal").style.display = "block";
+  loadCopyMoveFolderListForModal("moveTargetFolder");
+}
+
+document.addEventListener("DOMContentLoaded", function () {
+  const cancelCopy = document.getElementById("cancelCopyFiles");
+  if (cancelCopy) {
+    cancelCopy.addEventListener("click", function () {
+      document.getElementById("copyFilesModal").style.display = "none";
+      window.filesToCopy = [];
+    });
+  }
+  const confirmCopy = document.getElementById("confirmCopyFiles");
+  if (confirmCopy) {
+    confirmCopy.addEventListener("click", function () {
+      const targetFolder = document.getElementById("copyTargetFolder").value;
+      if (!targetFolder) {
+        showToast("Please select a target folder for copying.", 5000);
+        return;
+      }
+      if (targetFolder === window.currentFolder) {
+        showToast("Error: Cannot copy files to the same folder.");
+        return;
+      }
+      fetch("copyFiles.php", {
+        method: "POST",
+        credentials: "include",
+        headers: {
+          "Content-Type": "application/json",
+          "X-CSRF-Token": window.csrfToken
+        },
+        body: JSON.stringify({
+          source: window.currentFolder,
+          files: window.filesToCopy,
+          destination: targetFolder
+        })
+      })
+        .then(response => response.json())
+        .then(data => {
+          if (data.success) {
+            showToast("Selected files copied successfully!", 5000);
+            loadFileList(window.currentFolder);
+          } else {
+            showToast("Error: " + (data.error || "Could not copy files"), 5000);
+          }
+        })
+        .catch(error => console.error("Error copying files:", error))
+        .finally(() => {
+          document.getElementById("copyFilesModal").style.display = "none";
+          window.filesToCopy = [];
+        });
+    });
+  }
+});
+
+document.addEventListener("DOMContentLoaded", function () {
+  const cancelMove = document.getElementById("cancelMoveFiles");
+  if (cancelMove) {
+    cancelMove.addEventListener("click", function () {
+      document.getElementById("moveFilesModal").style.display = "none";
+      window.filesToMove = [];
+    });
+  }
+  const confirmMove = document.getElementById("confirmMoveFiles");
+  if (confirmMove) {
+    confirmMove.addEventListener("click", function () {
+      const targetFolder = document.getElementById("moveTargetFolder").value;
+      if (!targetFolder) {
+        showToast("Please select a target folder for moving.");
+        return;
+      }
+      if (targetFolder === window.currentFolder) {
+        showToast("Error: Cannot move files to the same folder.");
+        return;
+      }
+      fetch("moveFiles.php", {
+        method: "POST",
+        credentials: "include",
+        headers: {
+          "Content-Type": "application/json",
+          "X-CSRF-Token": window.csrfToken
+        },
+        body: JSON.stringify({
+          source: window.currentFolder,
+          files: window.filesToMove,
+          destination: targetFolder
+        })
+      })
+        .then(response => response.json())
+        .then(data => {
+          if (data.success) {
+            showToast("Selected files moved successfully!");
+            loadFileList(window.currentFolder);
+          } else {
+            showToast("Error: " + (data.error || "Could not move files"));
+          }
+        })
+        .catch(error => console.error("Error moving files:", error))
+        .finally(() => {
+          document.getElementById("moveFilesModal").style.display = "none";
+          window.filesToMove = [];
+        });
+    });
+  }
+});
+
+export function renameFile(oldName, folder) {
+  window.fileToRename = oldName;
+  window.fileFolder = folder || window.currentFolder || "root";
+  document.getElementById("newFileName").value = oldName;
+  document.getElementById("renameFileModal").style.display = "block";
+  setTimeout(() => {
+    const input = document.getElementById("newFileName");
+    input.focus();
+    const lastDot = oldName.lastIndexOf('.');
+    if (lastDot > 0) {
+      input.setSelectionRange(0, lastDot);
+    } else {
+      input.select();
+    }
+  }, 100);
+}
+
+document.addEventListener("DOMContentLoaded", () => {
+  const cancelBtn = document.getElementById("cancelRenameFile");
+  if (cancelBtn) {
+    cancelBtn.addEventListener("click", function () {
+      document.getElementById("renameFileModal").style.display = "none";
+      document.getElementById("newFileName").value = "";
+    });
+  }
+
+  const submitBtn = document.getElementById("submitRenameFile");
+  if (submitBtn) {
+    submitBtn.addEventListener("click", function () {
+      const newName = document.getElementById("newFileName").value.trim();
+      if (!newName || newName === window.fileToRename) {
+        document.getElementById("renameFileModal").style.display = "none";
+        return;
+      }
+      const folderUsed = window.fileFolder;
+      fetch("renameFile.php", {
+        method: "POST",
+        credentials: "include",
+        headers: {
+          "Content-Type": "application/json",
+          "X-CSRF-Token": window.csrfToken
+        },
+        body: JSON.stringify({ folder: folderUsed, oldName: window.fileToRename, newName: newName })
+      })
+        .then(response => response.json())
+        .then(data => {
+          if (data.success) {
+            showToast("File renamed successfully!");
+            loadFileList(folderUsed);
+          } else {
+            showToast("Error renaming file: " + (data.error || "Unknown error"));
+          }
+        })
+        .catch(error => {
+          console.error("Error renaming file:", error);
+          showToast("Error renaming file");
+        })
+        .finally(() => {
+          document.getElementById("renameFileModal").style.display = "none";
+          document.getElementById("newFileName").value = "";
+        });
+    });
+  }
+});
+
+// Expose initFileActions so it can be called from fileManager.js
+export function initFileActions() {
+  const deleteSelectedBtn = document.getElementById("deleteSelectedBtn");
+  if (deleteSelectedBtn) {
+    deleteSelectedBtn.replaceWith(deleteSelectedBtn.cloneNode(true));
+    document.getElementById("deleteSelectedBtn").addEventListener("click", handleDeleteSelected);
+  }
+  const copySelectedBtn = document.getElementById("copySelectedBtn");
+  if (copySelectedBtn) {
+    copySelectedBtn.replaceWith(copySelectedBtn.cloneNode(true));
+    document.getElementById("copySelectedBtn").addEventListener("click", handleCopySelected);
+  }
+  const moveSelectedBtn = document.getElementById("moveSelectedBtn");
+  if (moveSelectedBtn) {
+    moveSelectedBtn.replaceWith(moveSelectedBtn.cloneNode(true));
+    document.getElementById("moveSelectedBtn").addEventListener("click", handleMoveSelected);
+  }
+  const downloadZipBtn = document.getElementById("downloadZipBtn");
+  if (downloadZipBtn) {
+    downloadZipBtn.replaceWith(downloadZipBtn.cloneNode(true));
+    document.getElementById("downloadZipBtn").addEventListener("click", handleDownloadZipSelected);
+  }
+  const extractZipBtn = document.getElementById("extractZipBtn");
+  if (extractZipBtn) {
+    extractZipBtn.replaceWith(extractZipBtn.cloneNode(true));
+    document.getElementById("extractZipBtn").addEventListener("click", handleExtractZipSelected);
+  }
+}
+
+window.renameFile = renameFile;

js/fileDragDrop.js

@@ -0,0 +1,125 @@
+// dragDrop.js
+import { showToast } from './domUtils.js';
+import { loadFileList } from './fileListView.js';
+
+export function fileDragStartHandler(event) {
+  const row = event.currentTarget;
+  let fileNames = [];
+
+  const selectedCheckboxes = document.querySelectorAll("#fileList .file-checkbox:checked");
+  if (selectedCheckboxes.length > 1) {
+    selectedCheckboxes.forEach(chk => {
+      const parentRow = chk.closest("tr");
+      if (parentRow) {
+        const cell = parentRow.querySelector("td:nth-child(2)");
+        if (cell) {
+          let rawName = cell.textContent.trim();
+          const tagContainer = cell.querySelector(".tag-badges");
+          if (tagContainer) {
+            const tagText = tagContainer.innerText.trim();
+            if (rawName.endsWith(tagText)) {
+              rawName = rawName.slice(0, -tagText.length).trim();
+            }
+          }
+          fileNames.push(rawName);
+        }
+      }
+    });
+  } else {
+    const fileNameCell = row.querySelector("td:nth-child(2)");
+    if (fileNameCell) {
+      let rawName = fileNameCell.textContent.trim();
+      const tagContainer = fileNameCell.querySelector(".tag-badges");
+      if (tagContainer) {
+        const tagText = tagContainer.innerText.trim();
+        if (rawName.endsWith(tagText)) {
+          rawName = rawName.slice(0, -tagText.length).trim();
+        }
+      }
+      fileNames.push(rawName);
+    }
+  }
+
+  if (fileNames.length === 0) return;
+
+  const dragData = fileNames.length === 1 
+    ? { fileName: fileNames[0], sourceFolder: window.currentFolder || "root" }
+    : { files: fileNames, sourceFolder: window.currentFolder || "root" };
+
+  event.dataTransfer.setData("application/json", JSON.stringify(dragData));
+
+  let dragImage = document.createElement("div");
+  dragImage.style.display = "inline-flex";
+  dragImage.style.width = "auto";
+  dragImage.style.maxWidth = "fit-content";
+  dragImage.style.padding = "6px 10px";
+  dragImage.style.backgroundColor = "#333";
+  dragImage.style.color = "#fff";
+  dragImage.style.border = "1px solid #555";
+  dragImage.style.borderRadius = "4px";
+  dragImage.style.alignItems = "center";
+  dragImage.style.boxShadow = "2px 2px 6px rgba(0,0,0,0.3)";
+  const icon = document.createElement("span");
+  icon.className = "material-icons";
+  icon.textContent = "insert_drive_file";
+  icon.style.marginRight = "4px";
+  const label = document.createElement("span");
+  label.textContent = fileNames.length === 1 ? fileNames[0] : fileNames.length + " files";
+  dragImage.appendChild(icon);
+  dragImage.appendChild(label);
+  
+  document.body.appendChild(dragImage);
+  event.dataTransfer.setDragImage(dragImage, 5, 5);
+  setTimeout(() => {
+    document.body.removeChild(dragImage);
+  }, 0);
+}
+
+export function folderDragOverHandler(event) {
+  event.preventDefault();
+  event.currentTarget.classList.add("drop-hover");
+}
+
+export function folderDragLeaveHandler(event) {
+  event.currentTarget.classList.remove("drop-hover");
+}
+
+export function folderDropHandler(event) {
+  event.preventDefault();
+  event.currentTarget.classList.remove("drop-hover");
+  const dropFolder = event.currentTarget.getAttribute("data-folder");
+  let dragData;
+  try {
+    dragData = JSON.parse(event.dataTransfer.getData("application/json"));
+  } catch (e) {
+    console.error("Invalid drag data");
+    return;
+  }
+  if (!dragData || !dragData.fileName) return;
+  fetch("moveFiles.php", {
+    method: "POST",
+    credentials: "include",
+    headers: {
+      "Content-Type": "application/json",
+      "X-CSRF-Token": document.querySelector('meta[name="csrf-token"]').getAttribute("content")
+    },
+    body: JSON.stringify({
+      source: dragData.sourceFolder,
+      files: [dragData.fileName],
+      destination: dropFolder
+    })
+  })
+    .then(response => response.json())
+    .then(data => {
+      if (data.success) {
+        showToast(`File "${dragData.fileName}" moved successfully to ${dropFolder}!`);
+        loadFileList(dragData.sourceFolder);
+      } else {
+        showToast("Error moving file: " + (data.error || "Unknown error"));
+      }
+    })
+    .catch(error => {
+      console.error("Error moving file via drop:", error);
+      showToast("Error moving file.");
+    });
+}

js/fileEditor.js

@@ -0,0 +1,179 @@
+// editor.js
+import { escapeHTML, showToast } from './domUtils.js';
+import { loadFileList } from './fileListView.js';
+import { t } from './i18n.js';
+
+function getModeForFile(fileName) {
+  const ext = fileName.slice(fileName.lastIndexOf('.') + 1).toLowerCase();
+  switch (ext) {
+    case "css":
+      return "css";
+    case "json":
+      return { name: "javascript", json: true };
+    case "js":
+      return "javascript";
+    case "html":
+    case "htm":
+      return "text/html";
+    case "xml":
+      return "xml";
+    default:
+      return "text/plain";
+  }
+}
+export { getModeForFile };
+
+function adjustEditorSize() {
+  const modal = document.querySelector(".editor-modal");
+  if (modal && window.currentEditor) {
+    const headerHeight = 60; // adjust as needed
+    const availableHeight = modal.clientHeight - headerHeight;
+    window.currentEditor.setSize("100%", availableHeight + "px");
+  }
+}
+export { adjustEditorSize };
+
+function observeModalResize(modal) {
+  if (!modal) return;
+  const resizeObserver = new ResizeObserver(() => {
+    adjustEditorSize();
+  });
+  resizeObserver.observe(modal);
+}
+export { observeModalResize };
+
+export function editFile(fileName, folder) {
+  let existingEditor = document.getElementById("editorContainer");
+  if (existingEditor) {
+    existingEditor.remove();
+  }
+  const folderUsed = folder || window.currentFolder || "root";
+  const folderPath = folderUsed === "root"
+    ? "uploads/"
+    : "uploads/" + folderUsed.split("/").map(encodeURIComponent).join("/") + "/";
+  const fileUrl = folderPath + encodeURIComponent(fileName) + "?t=" + new Date().getTime();
+
+  fetch(fileUrl, { method: "HEAD" })
+    .then(response => {
+      const contentLength = response.headers.get("Content-Length");
+      if (contentLength !== null && parseInt(contentLength) > 10485760) {
+        showToast("This file is larger than 10 MB and cannot be edited in the browser.");
+        throw new Error("File too large.");
+      }
+      return fetch(fileUrl);
+    })
+    .then(response => {
+      if (!response.ok) {
+        throw new Error("HTTP error! Status: " + response.status);
+      }
+      return response.text();
+    })
+    .then(content => {
+      const modal = document.createElement("div");
+      modal.id = "editorContainer";
+      modal.classList.add("modal", "editor-modal");
+      modal.innerHTML = `
+      <div class="editor-header">
+        <h3 class="editor-title">${t("editing")}: ${escapeHTML(fileName)}</h3>
+        <div class="editor-controls">
+           <button id="decreaseFont" class="btn btn-sm btn-secondary">${t("decrease_font")}</button>
+           <button id="increaseFont" class="btn btn-sm btn-secondary">${t("increase_font")}</button>
+        </div>
+        <button id="closeEditorX" class="editor-close-btn">&times;</button>
+      </div>
+      <textarea id="fileEditor" class="editor-textarea">${escapeHTML(content)}</textarea>
+      <div class="editor-footer">
+        <button id="saveBtn" class="btn btn-primary">${t("save")}</button>
+        <button id="closeBtn" class="btn btn-secondary">${t("close")}</button>
+      </div>
+    `;
+      document.body.appendChild(modal);
+      modal.style.display = "block";
+
+      const mode = getModeForFile(fileName);
+      const isDarkMode = document.body.classList.contains("dark-mode");
+      const theme = isDarkMode ? "material-darker" : "default";
+
+      const editor = CodeMirror.fromTextArea(document.getElementById("fileEditor"), {
+        lineNumbers: true,
+        mode: mode,
+        theme: theme,
+        viewportMargin: Infinity
+      });
+
+      window.currentEditor = editor;
+
+      setTimeout(() => {
+        adjustEditorSize();
+      }, 50);
+
+      observeModalResize(modal);
+
+      let currentFontSize = 14;
+      editor.getWrapperElement().style.fontSize = currentFontSize + "px";
+      editor.refresh();
+
+      document.getElementById("closeEditorX").addEventListener("click", function () {
+        modal.remove();
+      });
+
+      document.getElementById("decreaseFont").addEventListener("click", function () {
+        currentFontSize = Math.max(8, currentFontSize - 2);
+        editor.getWrapperElement().style.fontSize = currentFontSize + "px";
+        editor.refresh();
+      });
+
+      document.getElementById("increaseFont").addEventListener("click", function () {
+        currentFontSize = Math.min(32, currentFontSize + 2);
+        editor.getWrapperElement().style.fontSize = currentFontSize + "px";
+        editor.refresh();
+      });
+
+      document.getElementById("saveBtn").addEventListener("click", function () {
+        saveFile(fileName, folderUsed);
+      });
+
+      document.getElementById("closeBtn").addEventListener("click", function () {
+        modal.remove();
+      });
+
+      function updateEditorTheme() {
+        const isDarkMode = document.body.classList.contains("dark-mode");
+        editor.setOption("theme", isDarkMode ? "material-darker" : "default");
+      }
+
+      document.getElementById("darkModeToggle").addEventListener("click", updateEditorTheme);
+    })
+    .catch(error => console.error("Error loading file:", error));
+}
+
+
+export function saveFile(fileName, folder) {
+  const editor = window.currentEditor;
+  if (!editor) {
+    console.error("Editor not found!");
+    return;
+  }
+  const folderUsed = folder || window.currentFolder || "root";
+  const fileDataObj = {
+    fileName: fileName,
+    content: editor.getValue(),
+    folder: folderUsed
+  };
+  fetch("saveFile.php", {
+    method: "POST",
+    credentials: "include",
+    headers: {
+      "Content-Type": "application/json",
+      "X-CSRF-Token": window.csrfToken
+    },
+    body: JSON.stringify(fileDataObj)
+  })
+    .then(response => response.json())
+    .then(result => {
+      showToast(result.success || result.error);
+      document.getElementById("editorContainer")?.remove();
+      loadFileList(folderUsed);
+    })
+    .catch(error => console.error("Error saving file:", error));
+}

js/fileListView.js

@@ -0,0 +1,480 @@
+// fileListView.js
+import {
+    escapeHTML,
+    debounce,
+    buildSearchAndPaginationControls,
+    buildFileTableHeader,
+    buildFileTableRow,
+    buildBottomControls,
+    updateFileActionButtons,
+    showToast,
+    updateRowHighlight,
+    toggleRowSelection,
+    attachEnterKeyListener
+} from './domUtils.js';
+import { t } from './i18n.js';
+import { bindFileListContextMenu } from './fileMenu.js';
+import { openDownloadModal } from './fileActions.js';
+import { openTagModal, openMultiTagModal } from './fileTags.js';
+
+export let fileData = [];
+export let sortOrder = { column: "uploaded", ascending: true };
+
+window.itemsPerPage = window.itemsPerPage || 10;
+window.currentPage = window.currentPage || 1;
+window.viewMode = localStorage.getItem("viewMode") || "table"; // "table" or "gallery"
+
+/**
+ * --- Helper Functions ---
+ */
+
+/**
+ * Convert a file size string (e.g. "456.9KB", "1.2 MB", "1024") into bytes.
+ */
+function parseSizeToBytes(sizeStr) {
+    if (!sizeStr) return 0;
+    // Remove any whitespace
+    let s = sizeStr.trim();
+    // Extract the numerical part.
+    let value = parseFloat(s);
+    // Determine if there is a unit. Convert the unit to uppercase for easier matching.
+    let upper = s.toUpperCase();
+    if (upper.includes("KB")) {
+        value *= 1024;
+    } else if (upper.includes("MB")) {
+        value *= 1024 * 1024;
+    } else if (upper.includes("GB")) {
+        value *= 1024 * 1024 * 1024;
+    }
+    return value;
+}
+
+/**
+ * Format the total bytes as a human-readable string, choosing an appropriate unit.
+ */
+function formatSize(totalBytes) {
+    if (totalBytes < 1024) {
+        return totalBytes + " Bytes";
+    } else if (totalBytes < 1024 * 1024) {
+        return (totalBytes / 1024).toFixed(2) + " KB";
+    } else if (totalBytes < 1024 * 1024 * 1024) {
+        return (totalBytes / (1024 * 1024)).toFixed(2) + " MB";
+    } else {
+        return (totalBytes / (1024 * 1024 * 1024)).toFixed(2) + " GB";
+    }
+}
+
+/**
+ * Build the folder summary HTML using the filtered file list.
+ * This function sums the file sizes in bytes correctly, then formats the total.
+ */
+function buildFolderSummary(filteredFiles) {
+    const totalFiles = filteredFiles.length;
+    const totalBytes = filteredFiles.reduce((sum, file) => {
+        // file.size might be something like "456.9KB" or just "1024".
+        return sum + parseSizeToBytes(file.size);
+    }, 0);
+    const sizeStr = formatSize(totalBytes);
+    return `<strong>Total Files:</strong> ${totalFiles} &nbsp;|&nbsp; <strong>Total Size:</strong> ${sizeStr}`;
+}
+
+/**
+ * --- VIEW MODE TOGGLE BUTTON & Helpers ---
+ */
+export function createViewToggleButton() {
+    let toggleBtn = document.getElementById("toggleViewBtn");
+    if (!toggleBtn) {
+        toggleBtn = document.createElement("button");
+        toggleBtn.id = "toggleViewBtn";
+        toggleBtn.classList.add("btn", "btn-secondary");
+        const titleElem = document.getElementById("fileListTitle");
+        if (titleElem) {
+            titleElem.parentNode.insertBefore(toggleBtn, titleElem.nextSibling);
+        }
+    }
+    toggleBtn.textContent = window.viewMode === "gallery" ? t("switch_to_table_view") : t("switch_to_gallery_view");
+    toggleBtn.onclick = () => {
+        window.viewMode = window.viewMode === "gallery" ? "table" : "gallery";
+        localStorage.setItem("viewMode", window.viewMode);
+        loadFileList(window.currentFolder);
+        toggleBtn.textContent = window.viewMode === "gallery" ? t("switch_to_table_view") : t("switch_to_gallery_view");
+    };
+    return toggleBtn;
+}
+
+export function formatFolderName(folder) {
+    if (folder === "root") return "(Root)";
+    return folder
+        .replace(/[_-]+/g, " ")
+        .replace(/\b\w/g, char => char.toUpperCase());
+}
+
+// Expose inline DOM helpers.
+window.toggleRowSelection = toggleRowSelection;
+window.updateRowHighlight = updateRowHighlight;
+
+/**
+ * --- FILE LIST & VIEW RENDERING ---
+ */
+export function loadFileList(folderParam) {
+    const folder = folderParam || "root";
+    const fileListContainer = document.getElementById("fileList");
+
+    fileListContainer.style.visibility = "hidden";
+    fileListContainer.innerHTML = "<div class='loader'>Loading files...</div>";
+
+    return fetch("getFileList.php?folder=" + encodeURIComponent(folder) + "&recursive=1&t=" + new Date().getTime())
+        .then(response => {
+            if (response.status === 401) {
+                showToast("Session expired. Please log in again.");
+                window.location.href = "logout.php";
+                throw new Error("Unauthorized");
+            }
+            return response.json();
+        })
+        .then(data => {
+            fileListContainer.innerHTML = ""; // Clear loading message.
+            if (data.files && data.files.length > 0) {
+                data.files = data.files.map(file => {
+                    file.fullName = (file.path || file.name).trim().toLowerCase();
+                    file.editable = canEditFile(file.name);
+                    file.folder = folder;
+                    if (!file.type && /\.(jpg|jpeg|png|gif|bmp|webp|svg|ico)$/i.test(file.name)) {
+                        file.type = "image";
+                    }
+                    return file;
+                });
+                fileData = data.files;
+
+                // Update the file list actions area without removing existing buttons.
+                const actionsContainer = document.getElementById("fileListActions");
+                if (actionsContainer) {
+                    let summaryElem = document.getElementById("fileSummary");
+                    if (!summaryElem) {
+                        summaryElem = document.createElement("div");
+                        summaryElem.id = "fileSummary";
+                        summaryElem.style.float = "right";
+                        summaryElem.style.marginLeft = "auto";
+                        summaryElem.style.marginRight = "60px";
+                        summaryElem.style.fontSize = "0.9em";
+                        actionsContainer.appendChild(summaryElem);
+                    } else {
+                        summaryElem.style.display = "block";
+                    }
+                    summaryElem.innerHTML = buildFolderSummary(fileData);
+                }
+
+                // Render the view normally.
+                if (window.viewMode === "gallery") {
+                    renderGalleryView(folder);
+                } else {
+                    renderFileTable(folder);
+                }
+            } else {
+                fileListContainer.textContent = t("no_files_found");
+                const summaryElem = document.getElementById("fileSummary");
+                if (summaryElem) {
+                    summaryElem.style.display = "none";
+                }
+                updateFileActionButtons();
+            }
+            return data.files || [];
+        })
+        .catch(error => {
+            console.error("Error loading file list:", error);
+            if (error.message !== "Unauthorized") {
+                fileListContainer.textContent = "Error loading files.";
+            }
+            return [];
+        })
+        .finally(() => {
+            fileListContainer.style.visibility = "visible";
+        });
+}
+
+/**
+ * Update renderFileTable so that it writes its content into the provided container.
+ * If no container is provided, it defaults to the element with id "fileList".
+ */
+export function renderFileTable(folder, container) {
+    const fileListContent = container || document.getElementById("fileList");
+    const searchTerm = (window.currentSearchTerm || "").toLowerCase();
+    const itemsPerPageSetting = parseInt(localStorage.getItem("itemsPerPage") || "10", 10);
+    let currentPage = window.currentPage || 1;
+
+    const filteredFiles = fileData.filter(file => {
+        const nameMatch = file.name.toLowerCase().includes(searchTerm);
+        const tagMatch = file.tags && file.tags.some(tag => tag.name.toLowerCase().includes(searchTerm));
+        return nameMatch || tagMatch;
+    });
+    const totalFiles = filteredFiles.length;
+    const totalPages = Math.ceil(totalFiles / itemsPerPageSetting);
+    if (currentPage > totalPages) {
+        currentPage = totalPages > 0 ? totalPages : 1;
+        window.currentPage = currentPage;
+    }
+    const folderPath = folder === "root"
+        ? "uploads/"
+        : "uploads/" + folder.split("/").map(encodeURIComponent).join("/") + "/";
+
+    const topControlsHTML = buildSearchAndPaginationControls({
+        currentPage,
+        totalPages,
+        searchTerm: window.currentSearchTerm || ""
+    });
+    let headerHTML = buildFileTableHeader(sortOrder);
+    const startIndex = (currentPage - 1) * itemsPerPageSetting;
+    const endIndex = Math.min(startIndex + itemsPerPageSetting, totalFiles);
+    let rowsHTML = "<tbody>";
+    if (totalFiles > 0) {
+        filteredFiles.slice(startIndex, endIndex).forEach((file, idx) => {
+            let rowHTML = buildFileTableRow(file, folderPath);
+            rowHTML = rowHTML.replace("<tr", `<tr id="file-row-${encodeURIComponent(file.name)}-${startIndex + idx}"`);
+
+            let tagBadgesHTML = "";
+            if (file.tags && file.tags.length > 0) {
+                tagBadgesHTML = '<div class="tag-badges" style="display:inline-block; margin-left:5px;">';
+                file.tags.forEach(tag => {
+                    tagBadgesHTML += `<span style="background-color: ${tag.color}; color: #fff; padding: 2px 4px; border-radius: 3px; margin-right: 2px; font-size: 0.8em;">${escapeHTML(tag.name)}</span>`;
+                });
+                tagBadgesHTML += "</div>";
+            }
+            rowHTML = rowHTML.replace(/(<td class="file-name-cell">)(.*?)(<\/td>)/, (match, p1, p2, p3) => {
+                return p1 + p2 + tagBadgesHTML + p3;
+            });
+            rowHTML = rowHTML.replace(/(<\/div>\s*<\/td>\s*<\/tr>)/, `<button class="share-btn btn btn-sm btn-secondary" data-file="${escapeHTML(file.name)}" title="Share">
+                <i class="material-icons">share</i>
+              </button>$1`);
+            rowsHTML += rowHTML;
+        });
+    } else {
+        rowsHTML += `<tr><td colspan="8">No files found.</td></tr>`;
+    }
+    rowsHTML += "</tbody></table>";
+    const bottomControlsHTML = buildBottomControls(itemsPerPageSetting);
+
+    fileListContent.innerHTML = topControlsHTML + headerHTML + rowsHTML + bottomControlsHTML;
+
+    createViewToggleButton();
+
+    // Setup event listeners as before...
+    const newSearchInput = document.getElementById("searchInput");
+    if (newSearchInput) {
+        newSearchInput.addEventListener("input", debounce(function () {
+            window.currentSearchTerm = newSearchInput.value;
+            window.currentPage = 1;
+            renderFileTable(folder, container);
+            setTimeout(() => {
+                const freshInput = document.getElementById("searchInput");
+                if (freshInput) {
+                    freshInput.focus();
+                    const len = freshInput.value.length;
+                    freshInput.setSelectionRange(len, len);
+                }
+            }, 0);
+        }, 300));
+    }
+    document.querySelectorAll("table.table thead th[data-column]").forEach(cell => {
+        cell.addEventListener("click", function () {
+            const column = this.getAttribute("data-column");
+            sortFiles(column, folder);
+        });
+    });
+    document.querySelectorAll("#fileList .file-checkbox").forEach(checkbox => {
+        checkbox.addEventListener("change", function (e) {
+            updateRowHighlight(e.target);
+            updateFileActionButtons();
+        });
+    });
+    document.querySelectorAll(".share-btn").forEach(btn => {
+        btn.addEventListener("click", function (e) {
+            e.stopPropagation();
+            const fileName = this.getAttribute("data-file");
+            const file = fileData.find(f => f.name === fileName);
+            if (file) {
+                import('./filePreview.js').then(module => {
+                    module.openShareModal(file, folder);
+                });
+            }
+        });
+    });
+    updateFileActionButtons();
+    document.querySelectorAll("#fileListContent tbody tr").forEach(row => {
+        row.setAttribute("draggable", "true");
+        import('./fileDragDrop.js').then(module => {
+            row.addEventListener("dragstart", module.fileDragStartHandler);
+        });
+    });
+    document.querySelectorAll(".download-btn, .edit-btn, .rename-btn").forEach(btn => {
+        btn.addEventListener("click", e => e.stopPropagation());
+    });
+    bindFileListContextMenu();
+}
+
+/**
+ * Similarly, update renderGalleryView to accept an optional container.
+ */
+export function renderGalleryView(folder, container) {
+    const fileListContent = container || document.getElementById("fileList");
+    const searchTerm = (window.currentSearchTerm || "").toLowerCase();
+    const filteredFiles = fileData.filter(file => {
+        return file.name.toLowerCase().includes(searchTerm) ||
+            (file.tags && file.tags.some(tag => tag.name.toLowerCase().includes(searchTerm)));
+    });
+    const folderPath = folder === "root"
+        ? "uploads/"
+        : "uploads/" + folder.split("/").map(encodeURIComponent).join("/") + "/";
+    const gridStyle = "display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; padding: 10px;";
+    let galleryHTML = `<div class="gallery-container" style="${gridStyle}">`;
+    filteredFiles.forEach((file) => {
+        let thumbnail;
+        if (/\.(jpg|jpeg|png|gif|bmp|webp|svg|ico)$/i.test(file.name)) {
+            thumbnail = `<img src="${folderPath + encodeURIComponent(file.name)}?t=${new Date().getTime()}" class="gallery-thumbnail" alt="${escapeHTML(file.name)}" style="max-width: 100%; max-height: 150px; display: block; margin: 0 auto;">`;
+        } else if (/\.(mp3|wav|m4a|ogg|flac|aac|wma|opus)$/i.test(file.name)) {
+            thumbnail = `<span class="material-icons gallery-icon">audiotrack</span>`;
+        } else {
+            thumbnail = `<span class="material-icons gallery-icon">insert_drive_file</span>`;
+        }
+        let tagBadgesHTML = "";
+        if (file.tags && file.tags.length > 0) {
+            tagBadgesHTML = `<div class="tag-badges" style="margin-top:4px;">`;
+            file.tags.forEach(tag => {
+                tagBadgesHTML += `<span style="background-color: ${tag.color}; color: #fff; padding: 2px 4px; border-radius: 3px; margin-right: 2px; font-size: 0.8em;">${escapeHTML(tag.name)}</span>`;
+            });
+            tagBadgesHTML += `</div>`;
+        }
+        galleryHTML += `<div class="gallery-card" style="border: 1px solid #ccc; padding: 5px; text-align: center;">
+        <div class="gallery-preview" style="cursor: pointer;" onclick="previewFile('${folderPath + encodeURIComponent(file.name)}?t=' + new Date().getTime(), '${file.name}')">
+          ${thumbnail}
+        </div>
+        <div class="gallery-info" style="margin-top: 5px;">
+          <span class="gallery-file-name" style="display: block;">${escapeHTML(file.name)}</span>
+          ${tagBadgesHTML}
+          <div class="button-wrap" style="display: flex; justify-content: center; gap: 5px;">
+            <button type="button" class="btn btn-sm btn-success download-btn" 
+                onclick="openDownloadModal('${file.name}', '${file.folder || 'root'}')" 
+                title="Download">
+                <i class="material-icons">file_download</i>
+            </button>
+            ${file.editable ? `
+              <button class="btn btn-sm edit-btn" onclick='editFile(${JSON.stringify(file.name)}, ${JSON.stringify(file.folder || "root")})' title="Edit">
+                <i class="material-icons">edit</i>
+              </button>
+            ` : ""}
+            <button class="btn btn-sm btn-warning rename-btn" onclick='renameFile(${JSON.stringify(file.name)}, ${JSON.stringify(file.folder || "root")})' title="Rename">
+               <i class="material-icons">drive_file_rename_outline</i>
+            </button>
+            <button class="btn btn-sm btn-secondary share-btn" data-file="${escapeHTML(file.name)}" title="Share">
+               <i class="material-icons">share</i>
+            </button>
+          </div>
+        </div>
+      </div>`;
+    });
+    galleryHTML += "</div>";
+    fileListContent.innerHTML = galleryHTML;
+    createViewToggleButton();
+    updateFileActionButtons();
+    document.querySelectorAll(".share-btn").forEach(btn => {
+        btn.addEventListener("click", e => {
+            e.stopPropagation();
+            const fileName = btn.getAttribute("data-file");
+            const file = fileData.find(f => f.name === fileName);
+            import('./filePreview.js').then(module => {
+                module.openShareModal(file, folder);
+            });
+        });
+    });
+}
+
+export function sortFiles(column, folder) {
+    if (sortOrder.column === column) {
+        sortOrder.ascending = !sortOrder.ascending;
+    } else {
+        sortOrder.column = column;
+        sortOrder.ascending = true;
+    }
+    fileData.sort((a, b) => {
+        let valA = a[column] || "";
+        let valB = b[column] || "";
+        if (column === "modified" || column === "uploaded") {
+            const parsedA = parseCustomDate(valA);
+            const parsedB = parseCustomDate(valB);
+            valA = parsedA;
+            valB = parsedB;
+        } else if (typeof valA === "string") {
+            valA = valA.toLowerCase();
+            valB = valB.toLowerCase();
+        }
+        if (valA < valB) return sortOrder.ascending ? -1 : 1;
+        if (valA > valB) return sortOrder.ascending ? 1 : -1;
+        return 0;
+    });
+    if (window.viewMode === "gallery") {
+        renderGalleryView(folder);
+    } else {
+        renderFileTable(folder);
+    }
+}
+
+function parseCustomDate(dateStr) {
+    dateStr = dateStr.replace(/\s+/g, " ").trim();
+    const parts = dateStr.split(" ");
+    if (parts.length !== 2) {
+        return new Date(dateStr).getTime();
+    }
+    const datePart = parts[0];
+    const timePart = parts[1];
+    const dateComponents = datePart.split("/");
+    if (dateComponents.length !== 3) {
+        return new Date(dateStr).getTime();
+    }
+    let month = parseInt(dateComponents[0], 10);
+    let day = parseInt(dateComponents[1], 10);
+    let year = parseInt(dateComponents[2], 10);
+    if (year < 100) {
+        year += 2000;
+    }
+    const timeRegex = /^(\d{1,2}):(\d{2})(AM|PM)$/i;
+    const match = timePart.match(timeRegex);
+    if (!match) {
+        return new Date(dateStr).getTime();
+    }
+    let hour = parseInt(match[1], 10);
+    const minute = parseInt(match[2], 10);
+    const period = match[3].toUpperCase();
+    if (period === "PM" && hour !== 12) {
+        hour += 12;
+    }
+    if (period === "AM" && hour === 12) {
+        hour = 0;
+    }
+    return new Date(year, month - 1, day, hour, minute).getTime();
+}
+
+export function canEditFile(fileName) {
+    const allowedExtensions = [
+        "txt", "html", "htm", "css", "js", "json", "xml",
+        "md", "py", "ini", "csv", "log", "conf", "config", "bat",
+        "rtf", "doc", "docx"
+    ];
+    const ext = fileName.slice(fileName.lastIndexOf('.') + 1).toLowerCase();
+    return allowedExtensions.includes(ext);
+}
+
+// Expose global functions for pagination and preview.
+window.changePage = function (newPage) {
+    window.currentPage = newPage;
+    renderFileTable(window.currentFolder);
+};
+window.changeItemsPerPage = function (newCount) {
+    window.itemsPerPage = parseInt(newCount);
+    window.currentPage = 1;
+    renderFileTable(window.currentFolder);
+};
+
+// fileListView.js (bottom)
+window.loadFileList = loadFileList;
+window.renderFileTable = renderFileTable;
+window.renderGalleryView = renderGalleryView;
+window.sortFiles = sortFiles;

js/fileManager.js

@@ -0,0 +1,40 @@
+// fileManager.js
+import './fileListView.js';
+import './filePreview.js';
+import './fileEditor.js';
+import './fileDragDrop.js';
+import './fileMenu.js';
+import { initFileActions } from './fileActions.js';
+
+// Initialize file action buttons.
+document.addEventListener("DOMContentLoaded", function () {
+  initFileActions();
+});
+
+// Attach folder drag-and-drop support for folder tree nodes.
+document.addEventListener("DOMContentLoaded", function () {
+  document.querySelectorAll(".folder-option").forEach(el => {
+    import('./fileDragDrop.js').then(module => {
+      el.addEventListener("dragover", module.folderDragOverHandler);
+      el.addEventListener("dragleave", module.folderDragLeaveHandler);
+      el.addEventListener("drop", module.folderDropHandler);
+    });
+  });
+});
+
+// Global keydown listener for file deletion via Delete/Backspace.
+document.addEventListener("keydown", function(e) {
+  const tag = e.target.tagName.toLowerCase();
+  if (tag === "input" || tag === "textarea" || e.target.isContentEditable) {
+    return;
+  }
+  if (e.key === "Delete" || e.key === "Backspace" || e.keyCode === 46 || e.keyCode === 8) {
+    const selectedCheckboxes = document.querySelectorAll("#fileList .file-checkbox:checked");
+    if (selectedCheckboxes.length > 0) {
+      e.preventDefault();
+      import('./fileActions.js').then(module => {
+        module.handleDeleteSelected(new Event("click"));
+      });
+    }
+  }
+});

js/fileMenu.js

@@ -0,0 +1,156 @@
+// contextMenu.js
+import { updateRowHighlight, showToast } from './domUtils.js';
+import { handleDeleteSelected, handleCopySelected, handleMoveSelected, handleDownloadZipSelected, handleExtractZipSelected, renameFile } from './fileActions.js';
+import { previewFile } from './filePreview.js';
+import { editFile } from './fileEditor.js';
+import { canEditFile, fileData } from './fileListView.js';
+import { openTagModal, openMultiTagModal } from './fileTags.js';
+import { t } from './i18n.js';
+
+export function showFileContextMenu(x, y, menuItems) {
+  let menu = document.getElementById("fileContextMenu");
+  if (!menu) {
+    menu = document.createElement("div");
+    menu.id = "fileContextMenu";
+    menu.style.position = "fixed";
+    menu.style.backgroundColor = "#fff";
+    menu.style.border = "1px solid #ccc";
+    menu.style.boxShadow = "2px 2px 6px rgba(0,0,0,0.2)";
+    menu.style.zIndex = "9999";
+    menu.style.padding = "5px 0";
+    menu.style.minWidth = "150px";
+    document.body.appendChild(menu);
+  }
+  menu.innerHTML = "";
+  menuItems.forEach(item => {
+    let menuItem = document.createElement("div");
+    menuItem.textContent = item.label;
+    menuItem.style.padding = "5px 15px";
+    menuItem.style.cursor = "pointer";
+    menuItem.addEventListener("mouseover", () => {
+      menuItem.style.backgroundColor = document.body.classList.contains("dark-mode") ? "#444" : "#f0f0f0";
+    });
+    menuItem.addEventListener("mouseout", () => {
+      menuItem.style.backgroundColor = "";
+    });
+    menuItem.addEventListener("click", () => {
+      item.action();
+      hideFileContextMenu();
+    });
+    menu.appendChild(menuItem);
+  });
+  
+  menu.style.left = x + "px";
+  menu.style.top = y + "px";
+  menu.style.display = "block";
+  
+  const menuRect = menu.getBoundingClientRect();
+  const viewportHeight = window.innerHeight;
+  if (menuRect.bottom > viewportHeight) {
+    let newTop = viewportHeight - menuRect.height;
+    if (newTop < 0) newTop = 0;
+    menu.style.top = newTop + "px";
+  }
+}
+
+export function hideFileContextMenu() {
+  const menu = document.getElementById("fileContextMenu");
+  if (menu) {
+    menu.style.display = "none";
+  }
+}
+
+export function fileListContextMenuHandler(e) {
+  e.preventDefault();
+  
+  let row = e.target.closest("tr");
+  if (row) {
+    const checkbox = row.querySelector(".file-checkbox");
+    if (checkbox && !checkbox.checked) {
+      checkbox.checked = true;
+      updateRowHighlight(checkbox);
+    }
+  }
+  
+  const selected = Array.from(document.querySelectorAll("#fileList .file-checkbox:checked")).map(chk => chk.value);
+  
+  let menuItems = [
+    { label: t("delete_selected"), action: () => { handleDeleteSelected(new Event("click")); } },
+    { label: t("copy_selected"), action: () => { handleCopySelected(new Event("click")); } },
+    { label: t("move_selected"), action: () => { handleMoveSelected(new Event("click")); } },
+    { label: t("download_zip"), action: () => { handleDownloadZipSelected(new Event("click")); } }
+  ];
+  
+  if (selected.some(name => name.toLowerCase().endsWith(".zip"))) {
+    menuItems.push({
+      label: t("extract_zip"),
+      action: () => { handleExtractZipSelected(new Event("click")); }
+    });
+  }
+  
+  if (selected.length > 1) {
+    menuItems.push({
+      label: t("tag_selected"),
+      action: () => {
+        const files = fileData.filter(f => selected.includes(f.name));
+        openMultiTagModal(files);
+      }
+    });
+  }
+  else if (selected.length === 1) {
+    const file = fileData.find(f => f.name === selected[0]);
+    
+    menuItems.push({
+      label: t("preview"),
+      action: () => {
+        const folder = window.currentFolder || "root";
+        const folderPath = folder === "root"
+          ? "uploads/"
+          : "uploads/" + folder.split("/").map(encodeURIComponent).join("/") + "/";
+        previewFile(folderPath + encodeURIComponent(file.name) + "?t=" + new Date().getTime(), file.name);
+      }
+    });
+    
+    if (canEditFile(file.name)) {
+      menuItems.push({
+        label: t("edit"),
+        action: () => { editFile(selected[0], window.currentFolder); }
+      });
+    }
+    
+    menuItems.push({
+      label: t("rename"),
+      action: () => { renameFile(selected[0], window.currentFolder); }
+    });
+    
+    menuItems.push({
+      label: t("tag_file"),
+      action: () => { openTagModal(file); }
+    });
+  }
+  
+  showFileContextMenu(e.clientX, e.clientY, menuItems);
+}
+
+export function bindFileListContextMenu() {
+  const fileListContainer = document.getElementById("fileList");
+  if (fileListContainer) {
+    fileListContainer.oncontextmenu = fileListContextMenuHandler;
+  }
+}
+
+document.addEventListener("click", function(e) {
+  const menu = document.getElementById("fileContextMenu");
+  if (menu && menu.style.display === "block") {
+    hideFileContextMenu();
+  }
+});
+
+// Rebind context menu after file table render.
+(function() {
+  const originalRenderFileTable = window.renderFileTable;
+  window.renderFileTable = function(folder) {
+    originalRenderFileTable(folder);
+    bindFileListContextMenu();
+  };
+})();

js/filePreview.js

@@ -0,0 +1,270 @@
+// filePreview.js
+import { escapeHTML, showToast } from './domUtils.js';
+import { fileData } from './fileListView.js';
+import { t } from './i18n.js';
+
+export function openShareModal(file, folder) {
+  const existing = document.getElementById("shareModal");
+  if (existing) existing.remove();
+
+  const modal = document.createElement("div");
+  modal.id = "shareModal";
+  modal.classList.add("modal");
+  modal.innerHTML = `
+    <div class="modal-content share-modal-content" style="width: 600px; max-width:90vw;">
+      <div class="modal-header">
+        <h3>${t("share_file")}: ${escapeHTML(file.name)}</h3>
+        <span class="close-image-modal" id="closeShareModal" title="Close">&times;</span>
+      </div>
+      <div class="modal-body">
+        <p>${t("set_expiration")}</p>
+        <select id="shareExpiration">
+          <option value="30">30 minutes</option>
+          <option value="60" selected>60 minutes</option>
+          <option value="120">120 minutes</option>
+          <option value="180">180 minutes</option>
+          <option value="240">240 minutes</option>
+          <option value="1440">1 Day</option>
+        </select>
+        <p>Password (optional):</p>
+        <input type="text" id="sharePassword" placeholder=${t("password_optional")} style="width: 100%;"/>
+        <br>
+        <button id="generateShareLinkBtn" class="btn btn-primary" style="margin-top:10px;">${t("generate_share_link")}</button>
+        <div id="shareLinkDisplay" style="margin-top: 10px; display:none;">
+          <p>${t("shareable_link")}</p>
+          <input type="text" id="shareLinkInput" readonly style="width:100%;"/>
+          <button id="copyShareLinkBtn" class="btn btn-primary" style="margin-top:5px;">${t("copy_link")}</button>
+        </div>
+      </div>
+    </div>
+  `;
+  document.body.appendChild(modal);
+  modal.style.display = "block";
+
+  document.getElementById("closeShareModal").addEventListener("click", () => {
+    modal.remove();
+  });
+
+  document.getElementById("generateShareLinkBtn").addEventListener("click", () => {
+    const expiration = document.getElementById("shareExpiration").value;
+    const password = document.getElementById("sharePassword").value;
+    fetch("createShareLink.php", {
+      method: "POST",
+      credentials: "include",
+      headers: {
+        "Content-Type": "application/json",
+        "X-CSRF-Token": window.csrfToken
+      },
+      body: JSON.stringify({
+        folder: folder,
+        file: file.name,
+        expirationMinutes: parseInt(expiration),
+        password: password
+      })
+    })
+      .then(response => response.json())
+      .then(data => {
+        if (data.token) {
+          let shareEndpoint = document.querySelector('meta[name="share-url"]')
+            ? document.querySelector('meta[name="share-url"]').getAttribute('content')
+            : (window.SHARE_URL || "share.php");
+          const shareUrl = `${shareEndpoint}?token=${encodeURIComponent(data.token)}`;
+          const displayDiv = document.getElementById("shareLinkDisplay");
+          const inputField = document.getElementById("shareLinkInput");
+          inputField.value = shareUrl;
+          displayDiv.style.display = "block";
+        } else {
+          showToast("Error generating share link: " + (data.error || "Unknown error"));
+        }
+      })
+      .catch(err => {
+        console.error("Error generating share link:", err);
+        showToast("Error generating share link.");
+      });
+  });
+
+  document.getElementById("copyShareLinkBtn").addEventListener("click", () => {
+    const input = document.getElementById("shareLinkInput");
+    input.select();
+    document.execCommand("copy");
+    showToast("Link copied to clipboard!");
+  });
+}
+
+export function previewFile(fileUrl, fileName) {
+  let modal = document.getElementById("filePreviewModal");
+  if (!modal) {
+    modal = document.createElement("div");
+    modal.id = "filePreviewModal";
+    Object.assign(modal.style, {
+      position: "fixed",
+      top: "0",
+      left: "0",
+      width: "100vw",
+      height: "100vh",
+      backgroundColor: "rgba(0,0,0,0.7)",
+      display: "flex",
+      justifyContent: "center",
+      alignItems: "center",
+      zIndex: "1000"
+    });
+    modal.innerHTML = `
+      <div class="modal-content image-preview-modal-content" style="position: relative; max-width: 90vw; max-height: 90vh;">
+        <span id="closeFileModal" class="close-image-modal" style="position: absolute; top: 10px; right: 10px; font-size: 24px; cursor: pointer;">&times;</span>
+        <h4 class="image-modal-header"></h4>
+        <div class="file-preview-container" style="position: relative; text-align: center;"></div>
+      </div>`;
+    document.body.appendChild(modal);
+
+    function closeModal() {
+      const mediaElements = modal.querySelectorAll("video, audio");
+      mediaElements.forEach(media => {
+        media.pause();
+        if (media.tagName.toLowerCase() !== 'video') {
+          try {
+            media.currentTime = 0;
+          } catch(e) { }
+        }
+      });
+      modal.style.display = "none";
+    }
+
+    document.getElementById("closeFileModal").addEventListener("click", closeModal);
+    modal.addEventListener("click", function (e) {
+      if (e.target === modal) {
+        closeModal();
+      }
+    });
+  }
+  modal.querySelector("h4").textContent = fileName;
+  const container = modal.querySelector(".file-preview-container");
+  container.innerHTML = "";
+
+  const extension = fileName.split('.').pop().toLowerCase();
+  const isImage = /\.(jpg|jpeg|png|gif|bmp|webp|svg|ico)$/i.test(fileName);
+  if (isImage) {
+    const img = document.createElement("img");
+    img.src = fileUrl;
+    img.className = "image-modal-img";
+    img.style.maxWidth = "80vw";
+    img.style.maxHeight = "80vh";
+    container.appendChild(img);
+
+    const images = fileData.filter(file => /\.(jpg|jpeg|png|gif|bmp|webp|svg|ico)$/i.test(file.name));
+    if (images.length > 1) {
+      modal.galleryImages = images;
+      modal.galleryCurrentIndex = images.findIndex(f => f.name === fileName);
+
+      const prevBtn = document.createElement("button");
+      prevBtn.textContent = "‹";
+      prevBtn.className = "gallery-nav-btn";
+      prevBtn.style.cssText = "position: absolute; top: 50%; left: 10px; transform: translateY(-50%); background: transparent; border: none; color: white; font-size: 48px; cursor: pointer;";
+      prevBtn.addEventListener("click", function (e) {
+        e.stopPropagation();
+        modal.galleryCurrentIndex = (modal.galleryCurrentIndex - 1 + modal.galleryImages.length) % modal.galleryImages.length;
+        let newFile = modal.galleryImages[modal.galleryCurrentIndex];
+        modal.querySelector("h4").textContent = newFile.name;
+        img.src = ((window.currentFolder === "root")
+          ? "uploads/"
+          : "uploads/" + window.currentFolder.split("/").map(encodeURIComponent).join("/") + "/")
+          + encodeURIComponent(newFile.name) + "?t=" + new Date().getTime();
+      });
+      const nextBtn = document.createElement("button");
+      nextBtn.textContent = "›";
+      nextBtn.className = "gallery-nav-btn";
+      nextBtn.style.cssText = "position: absolute; top: 50%; right: 10px; transform: translateY(-50%); background: transparent; border: none; color: white; font-size: 48px; cursor: pointer;";
+      nextBtn.addEventListener("click", function (e) {
+        e.stopPropagation();
+        modal.galleryCurrentIndex = (modal.galleryCurrentIndex + 1) % modal.galleryImages.length;
+        let newFile = modal.galleryImages[modal.galleryCurrentIndex];
+        modal.querySelector("h4").textContent = newFile.name;
+        img.src = ((window.currentFolder === "root")
+          ? "uploads/"
+          : "uploads/" + window.currentFolder.split("/").map(encodeURIComponent).join("/") + "/")
+          + encodeURIComponent(newFile.name) + "?t=" + new Date().getTime();
+      });
+      container.appendChild(prevBtn);
+      container.appendChild(nextBtn);
+    }
+  } else {
+    if (extension === "pdf") {
+      const embed = document.createElement("embed");
+      const separator = fileUrl.indexOf('?') === -1 ? '?' : '&';
+      embed.src = fileUrl + separator + 't=' + new Date().getTime();
+      embed.type = "application/pdf";
+      embed.style.width = "80vw";
+      embed.style.height = "80vh";
+      embed.style.border = "none";
+      container.appendChild(embed);
+    } else if (/\.(mp4|mkv|webm|mov|ogv)$/i.test(fileName)) {
+      const video = document.createElement("video");
+      video.src = fileUrl;
+      video.controls = true;
+      video.className = "image-modal-img";
+    
+      const progressKey = 'videoProgress-' + fileUrl;
+    
+      video.addEventListener("loadedmetadata", () => {
+        const savedTime = localStorage.getItem(progressKey);
+        if (savedTime) {
+          video.currentTime = parseFloat(savedTime);
+        }
+      });
+    
+      video.addEventListener("timeupdate", () => {
+        localStorage.setItem(progressKey, video.currentTime);
+      });
+
+      video.addEventListener("ended", () => {
+        localStorage.removeItem(progressKey);
+      });
+    
+      container.appendChild(video);
+
+    } else if (/\.(mp3|wav|m4a|ogg|flac|aac|wma|opus)$/i.test(fileName)) {
+      const audio = document.createElement("audio");
+      audio.src = fileUrl;
+      audio.controls = true;
+      audio.className = "audio-modal";
+      audio.style.maxWidth = "80vw";
+      container.appendChild(audio);
+    } else {
+      container.textContent = "Preview not available for this file type.";
+    }
+  }
+  modal.style.display = "flex";
+}
+
+// Added to preserve the original functionality.
+export function displayFilePreview(file, container) {
+  const actualFile = file.file || file;
+  
+  // Validate that actualFile is indeed a File
+  if (!(actualFile instanceof File)) {
+    console.error("displayFilePreview called with an invalid file object");
+    return;
+  }
+  
+  container.style.display = "inline-block";
+  
+  // Clear the container safely without using innerHTML
+  while (container.firstChild) {
+    container.removeChild(container.firstChild);
+  }
+  
+  if (/\.(jpg|jpeg|png|gif|bmp|webp|svg|ico)$/i.test(actualFile.name)) {
+    const img = document.createElement("img");
+    // Set the image source using a Blob URL (this is considered safe)
+    img.src = URL.createObjectURL(actualFile);
+    img.classList.add("file-preview-img");
+    container.appendChild(img);
+  } else {
+    const iconSpan = document.createElement("span");
+    iconSpan.classList.add("material-icons", "file-icon");
+    iconSpan.textContent = "insert_drive_file";
+    container.appendChild(iconSpan);
+  }
+}
+
+window.previewFile = previewFile;
+window.openShareModal = openShareModal;

js/fileTags.js

@@ -0,0 +1,467 @@
+// fileTags.js
+// This module provides functions for opening the tag modal,
+// adding tags to files (with a global tag store for reuse),
+// updating the file row display with tag badges,
+// filtering the file list by tag, and persisting tag data.
+import { escapeHTML } from './domUtils.js';
+import { t } from './i18n.js';
+
+export function openTagModal(file) {
+  // Create the modal element.
+  let modal = document.createElement('div');
+  modal.id = 'tagModal';
+  modal.className = 'modal';
+  modal.innerHTML = `
+    <div class="modal-content" style="width: 400px; max-width:90vw;">
+      <div class="modal-header" style="display:flex; justify-content:space-between; align-items:center;">
+        <h3 style="margin:0;">${t("tag_file")}: ${file.name}</h3>
+        <span id="closeTagModal" style="cursor:pointer; font-size:24px;">&times;</span>
+      </div>
+      <div class="modal-body" style="margin-top:10px;">
+        <label for="tagNameInput">${t("tag_name")}</label>
+        <input type="text" id="tagNameInput" placeholder="Enter tag name" style="width:100%; padding:5px;"/>
+        <br><br>
+        <label for="tagColorInput">${t("tag_name")}</label>
+        <input type="color" id="tagColorInput" value="#ff0000" style="width:100%; padding:5px;"/>
+        <br><br>
+        <div id="customTagDropdown" style="max-height:150px; overflow-y:auto; border:1px solid #ccc; margin-top:5px; padding:5px;">
+          <!-- Custom tag options will be populated here -->
+        </div>
+        <br>
+        <div style="text-align:right;">
+          <button id="saveTagBtn" class="btn btn-primary">${t("save_tag")}</button>
+        </div>
+        <div id="currentTags" style="margin-top:10px; font-size:0.9em;">
+          <!-- Existing tags will be listed here -->
+        </div>
+      </div>
+    </div>
+  `;
+  document.body.appendChild(modal);
+  modal.style.display = 'block';
+
+  updateCustomTagDropdown();
+
+  document.getElementById('closeTagModal').addEventListener('click', () => {
+    modal.remove();
+  });
+
+  updateTagModalDisplay(file);
+
+  document.getElementById('tagNameInput').addEventListener('input', (e) => {
+    updateCustomTagDropdown(e.target.value);
+  });
+
+  document.getElementById('saveTagBtn').addEventListener('click', () => {
+    const tagName = document.getElementById('tagNameInput').value.trim();
+    const tagColor = document.getElementById('tagColorInput').value;
+    if (!tagName) {
+      alert('Please enter a tag name.');
+      return;
+    }
+    addTagToFile(file, { name: tagName, color: tagColor });
+    updateTagModalDisplay(file);
+    updateFileRowTagDisplay(file);
+    saveFileTags(file);
+    document.getElementById('tagNameInput').value = '';
+    updateCustomTagDropdown();
+  });
+}
+
+/**
+ * Open a modal to tag multiple files.
+ * @param {Array} files - Array of file objects to tag.
+ */
+export function openMultiTagModal(files) {
+  let modal = document.createElement('div');
+  modal.id = 'multiTagModal';
+  modal.className = 'modal';
+  modal.innerHTML = `
+    <div class="modal-content" style="width: 400px; max-width:90vw;">
+      <div class="modal-header" style="display:flex; justify-content:space-between; align-items:center;">
+        <h3 style="margin:0;">Tag Selected Files (${files.length})</h3>
+        <span id="closeMultiTagModal" style="cursor:pointer; font-size:24px;">&times;</span>
+      </div>
+      <div class="modal-body" style="margin-top:10px;">
+        <label for="multiTagNameInput">Tag Name:</label>
+        <input type="text" id="multiTagNameInput" placeholder="Enter tag name" style="width:100%; padding:5px;"/>
+        <br><br>
+        <label for="multiTagColorInput">Tag Color:</label>
+        <input type="color" id="multiTagColorInput" value="#ff0000" style="width:100%; padding:5px;"/>
+        <br><br>
+        <div id="multiCustomTagDropdown" style="max-height:150px; overflow-y:auto; border:1px solid #ccc; margin-top:5px; padding:5px;">
+          <!-- Custom tag options will be populated here -->
+        </div>
+        <br>
+        <div style="text-align:right;">
+          <button id="saveMultiTagBtn" class="btn btn-primary">Save Tag to Selected</button>
+        </div>
+      </div>
+    </div>
+  `;
+  document.body.appendChild(modal);
+  modal.style.display = 'block';
+
+  updateMultiCustomTagDropdown();
+
+  document.getElementById('closeMultiTagModal').addEventListener('click', () => {
+    modal.remove();
+  });
+
+  document.getElementById('multiTagNameInput').addEventListener('input', (e) => {
+    updateMultiCustomTagDropdown(e.target.value);
+  });
+
+  document.getElementById('saveMultiTagBtn').addEventListener('click', () => {
+    const tagName = document.getElementById('multiTagNameInput').value.trim();
+    const tagColor = document.getElementById('multiTagColorInput').value;
+    if (!tagName) {
+      alert('Please enter a tag name.');
+      return;
+    }
+    files.forEach(file => {
+      addTagToFile(file, { name: tagName, color: tagColor });
+      updateFileRowTagDisplay(file);
+      saveFileTags(file);
+    });
+    modal.remove();
+  });
+}
+
+/**
+ * Update the custom dropdown for multi-tag modal.
+ * Similar to updateCustomTagDropdown but includes a remove icon.
+ */
+function updateMultiCustomTagDropdown(filterText = "") {
+  const dropdown = document.getElementById("multiCustomTagDropdown");
+  if (!dropdown) return;
+  dropdown.innerHTML = "";
+  let tags = window.globalTags || [];
+  if (filterText) {
+    tags = tags.filter(tag => tag.name.toLowerCase().includes(filterText.toLowerCase()));
+  }
+  if (tags.length > 0) {
+    tags.forEach(tag => {
+      const item = document.createElement("div");
+      item.style.cursor = "pointer";
+      item.style.padding = "5px";
+      item.style.borderBottom = "1px solid #eee";
+      // Display colored square and tag name with remove icon.
+      item.innerHTML = `
+        <span style="display:inline-block; width:16px; height:16px; background-color:${tag.color}; border:1px solid #ccc; margin-right:5px; vertical-align:middle;"></span>
+        ${escapeHTML(tag.name)}
+        <span class="global-remove" style="color:red; font-weight:bold; margin-left:5px; cursor:pointer;">×</span>
+      `;
+      item.addEventListener("click", function(e) {
+        if (e.target.classList.contains("global-remove")) return;
+        document.getElementById("multiTagNameInput").value = tag.name;
+        document.getElementById("multiTagColorInput").value = tag.color;
+      });
+      item.querySelector('.global-remove').addEventListener("click", function(e){
+        e.stopPropagation();
+        removeGlobalTag(tag.name);
+      });
+      dropdown.appendChild(item);
+    });
+  } else {
+    dropdown.innerHTML = "<div style='padding:5px;'>No tags available</div>";
+  }
+}
+
+function updateCustomTagDropdown(filterText = "") {
+  const dropdown = document.getElementById("customTagDropdown");
+  if (!dropdown) return;
+  dropdown.innerHTML = "";
+  let tags = window.globalTags || [];
+  if (filterText) {
+    tags = tags.filter(tag => tag.name.toLowerCase().includes(filterText.toLowerCase()));
+  }
+  if (tags.length > 0) {
+    tags.forEach(tag => {
+      const item = document.createElement("div");
+      item.style.cursor = "pointer";
+      item.style.padding = "5px";
+      item.style.borderBottom = "1px solid #eee";
+      item.innerHTML = `
+        <span style="display:inline-block; width:16px; height:16px; background-color:${tag.color}; border:1px solid #ccc; margin-right:5px; vertical-align:middle;"></span>
+        ${escapeHTML(tag.name)}
+        <span class="global-remove" style="color:red; font-weight:bold; margin-left:5px; cursor:pointer;">×</span>
+      `;
+      item.addEventListener("click", function(e){
+        if (e.target.classList.contains('global-remove')) return;
+        document.getElementById("tagNameInput").value = tag.name;
+        document.getElementById("tagColorInput").value = tag.color;
+      });
+      item.querySelector('.global-remove').addEventListener("click", function(e){
+        e.stopPropagation();
+        removeGlobalTag(tag.name);
+      });
+      dropdown.appendChild(item);
+    });
+  } else {
+    dropdown.innerHTML = "<div style='padding:5px;'>No tags available</div>";
+  }
+}
+    
+// Update the modal display to show current tags on the file.
+function updateTagModalDisplay(file) {
+  const container = document.getElementById('currentTags');
+  if (!container) return;
+  container.innerHTML = '<strong>Current Tags:</strong> ';
+  if (file.tags && file.tags.length > 0) {
+    file.tags.forEach(tag => {
+      const tagElem = document.createElement('span');
+      tagElem.textContent = tag.name;
+      tagElem.style.backgroundColor = tag.color;
+      tagElem.style.color = '#fff';
+      tagElem.style.padding = '2px 6px';
+      tagElem.style.marginRight = '5px';
+      tagElem.style.borderRadius = '3px';
+      tagElem.style.display = 'inline-block';
+      tagElem.style.position = 'relative';
+      
+      const removeIcon = document.createElement('span');
+      removeIcon.textContent = ' ✕';
+      removeIcon.style.fontWeight = 'bold';
+      removeIcon.style.marginLeft = '3px';
+      removeIcon.style.cursor = 'pointer';
+      
+      removeIcon.addEventListener('click', (e) => {
+        e.stopPropagation();
+        removeTagFromFile(file, tag.name);
+      });
+      
+      tagElem.appendChild(removeIcon);
+      container.appendChild(tagElem);
+    });
+  } else {
+    container.innerHTML += 'None';
+  }
+}
+
+function removeTagFromFile(file, tagName) {
+  file.tags = file.tags.filter(t => t.name.toLowerCase() !== tagName.toLowerCase());
+  updateTagModalDisplay(file);
+  updateFileRowTagDisplay(file);
+  saveFileTags(file);
+}
+
+/**
+ * Remove a tag from the global tag store.
+ * This function updates window.globalTags and calls the backend endpoint
+ * to remove the tag from the persistent store.
+ */
+function removeGlobalTag(tagName) {
+  window.globalTags = window.globalTags.filter(t => t.name.toLowerCase() !== tagName.toLowerCase());
+  localStorage.setItem('globalTags', JSON.stringify(window.globalTags));
+  updateCustomTagDropdown();
+  updateMultiCustomTagDropdown();
+  saveGlobalTagRemoval(tagName);
+}
+
+// NEW: Save global tag removal to the server.
+function saveGlobalTagRemoval(tagName) {
+  fetch("saveFileTag.php", {
+    method: "POST",
+    credentials: "include",
+    headers: {
+      "Content-Type": "application/json",
+      "X-CSRF-Token": window.csrfToken
+    },
+    body: JSON.stringify({
+      folder: "root",
+      file: "global",
+      deleteGlobal: true,
+      tagToDelete: tagName,
+      tags: []
+    })
+  })
+    .then(response => response.json())
+    .then(data => {
+      if (data.success) {
+        console.log("Global tag removed:", tagName);
+        if (data.globalTags) {
+          window.globalTags = data.globalTags;
+          localStorage.setItem('globalTags', JSON.stringify(window.globalTags));
+          updateCustomTagDropdown();
+          updateMultiCustomTagDropdown();
+        }
+      } else {
+        console.error("Error removing global tag:", data.error);
+      }
+    })
+    .catch(err => {
+      console.error("Error removing global tag:", err);
+    });
+}
+  
+// Global store for reusable tags.
+window.globalTags = window.globalTags || [];
+if (localStorage.getItem('globalTags')) {
+  try {
+    window.globalTags = JSON.parse(localStorage.getItem('globalTags'));
+  } catch (e) { }
+}
+  
+// New function to load global tags from the server's persistent JSON.
+export function loadGlobalTags() {
+  fetch("metadata/createdTags.json", { credentials: "include" })
+    .then(response => {
+      if (!response.ok) {
+        // If the file doesn't exist, assume there are no global tags.
+        return [];
+      }
+      return response.json();
+    })
+    .then(data => {
+      window.globalTags = data;
+      localStorage.setItem('globalTags', JSON.stringify(window.globalTags));
+      updateCustomTagDropdown();
+      updateMultiCustomTagDropdown();
+    })
+    .catch(err => {
+      console.error("Error loading global tags:", err);
+      window.globalTags = [];
+      updateCustomTagDropdown();
+      updateMultiCustomTagDropdown();
+    });
+}
+  
+loadGlobalTags();
+  
+// Add (or update) a tag in the file object.
+export function addTagToFile(file, tag) {
+  if (!file.tags) {
+    file.tags = [];
+  }
+  const exists = file.tags.find(t => t.name.toLowerCase() === tag.name.toLowerCase());
+  if (exists) {
+    exists.color = tag.color;
+  } else {
+    file.tags.push(tag);
+  }
+  const globalExists = window.globalTags.find(t => t.name.toLowerCase() === tag.name.toLowerCase());
+  if (!globalExists) {
+    window.globalTags.push(tag);
+    localStorage.setItem('globalTags', JSON.stringify(window.globalTags));
+  }
+}
+  
+// Update the file row (in table view) to show tag badges.
+export function updateFileRowTagDisplay(file) {
+  const rows = document.querySelectorAll(`[id^="file-row-${encodeURIComponent(file.name)}"]`);
+  console.log('Updating tags for rows:', rows);
+  rows.forEach(row => {
+    let cell = row.querySelector('.file-name-cell');
+    if (cell) {
+      let badgeContainer = cell.querySelector('.tag-badges');
+      if (!badgeContainer) {
+        badgeContainer = document.createElement('div');
+        badgeContainer.className = 'tag-badges';
+        badgeContainer.style.display = 'inline-block';
+        badgeContainer.style.marginLeft = '5px';
+        cell.appendChild(badgeContainer);
+      }
+      badgeContainer.innerHTML = '';
+      if (file.tags && file.tags.length > 0) {
+        file.tags.forEach(tag => {
+          const badge = document.createElement('span');
+          badge.textContent = tag.name;
+          badge.style.backgroundColor = tag.color;
+          badge.style.color = '#fff';
+          badge.style.padding = '2px 4px';
+          badge.style.marginRight = '2px';
+          badge.style.borderRadius = '3px';
+          badge.style.fontSize = '0.8em';
+          badge.style.verticalAlign = 'middle';
+          badgeContainer.appendChild(badge);
+        });
+      }
+    }
+  });
+}
+  
+export function initTagSearch() {
+  const searchInput = document.getElementById('searchInput');
+  if (searchInput) {
+    let tagSearchInput = document.getElementById('tagSearchInput');
+    if (!tagSearchInput) {
+      tagSearchInput = document.createElement('input');
+      tagSearchInput.id = 'tagSearchInput';
+      tagSearchInput.placeholder = 'Filter by tag';
+      tagSearchInput.style.marginLeft = '10px';
+      tagSearchInput.style.padding = '5px';
+      searchInput.parentNode.insertBefore(tagSearchInput, searchInput.nextSibling);
+      tagSearchInput.addEventListener('input', () => {
+        window.currentTagFilter = tagSearchInput.value.trim().toLowerCase();
+        if (window.currentFolder) {
+          renderFileTable(window.currentFolder);
+        }
+      });
+    }
+  }
+}
+  
+export function filterFilesByTag(files) {
+  if (window.currentTagFilter && window.currentTagFilter !== '') {
+    return files.filter(file => {
+      if (file.tags && file.tags.length > 0) {
+        return file.tags.some(tag => tag.name.toLowerCase().includes(window.currentTagFilter));
+      }
+      return false;
+    });
+  }
+  return files;
+}
+  
+function updateGlobalTagList() {
+  const dataList = document.getElementById("globalTagList");
+  if (dataList) {
+    dataList.innerHTML = "";
+    window.globalTags.forEach(tag => {
+      const option = document.createElement("option");
+      option.value = tag.name;
+      dataList.appendChild(option);
+    });
+  }
+}
+  
+export function saveFileTags(file, deleteGlobal = false, tagToDelete = null) {
+  const folder = file.folder || "root";
+  const payload = {
+    folder: folder,
+    file: file.name,
+    tags: file.tags
+  };
+  if (deleteGlobal && tagToDelete) {
+    payload.file = "global";
+    payload.deleteGlobal = true;
+    payload.tagToDelete = tagToDelete;
+  }
+  fetch("saveFileTag.php", {
+    method: "POST",
+    credentials: "include",
+    headers: {
+      "Content-Type": "application/json",
+      "X-CSRF-Token": window.csrfToken
+    },
+    body: JSON.stringify(payload)
+  })
+    .then(response => response.json())
+    .then(data => {
+      if (data.success) {
+        console.log("Tags saved:", data);
+        if (data.globalTags) {
+          window.globalTags = data.globalTags;
+          localStorage.setItem('globalTags', JSON.stringify(window.globalTags));
+          updateCustomTagDropdown();
+          updateMultiCustomTagDropdown();
+        }
+      } else {
+        console.error("Error saving tags:", data.error);
+      }
+    })
+    .catch(err => {
+      console.error("Error saving tags:", err);
+    });
+}

js/folderManager.js

@@ -0,0 +1,810 @@
+// folderManager.js
+
+import { loadFileList } from './fileListView.js';
+import { showToast, escapeHTML, attachEnterKeyListener } from './domUtils.js';
+import { t } from './i18n.js';
+import { openFolderShareModal } from './folderShareModal.js';
+
+/* ----------------------
+   Helper Functions (Data/State)
+----------------------*/
+
+// Formats a folder name for display (e.g. adding indentations).
+export function formatFolderName(folder) {
+  if (typeof folder !== "string") return "";
+  if (folder.indexOf("/") !== -1) {
+    let parts = folder.split("/");
+    let indent = "";
+    for (let i = 1; i < parts.length; i++) {
+      indent += "\u00A0\u00A0\u00A0\u00A0"; // 4 non-breaking spaces per level
+    }
+    return indent + parts[parts.length - 1];
+  } else {
+    return folder;
+  }
+}
+
+// Build a tree structure from a flat array of folder paths.
+function buildFolderTree(folders) {
+  const tree = {};
+  folders.forEach(folderPath => {
+    if (typeof folderPath !== "string") return;
+    const parts = folderPath.split('/');
+    let current = tree;
+    parts.forEach(part => {
+      if (!current[part]) {
+        current[part] = {};
+      }
+      current = current[part];
+    });
+  });
+  return tree;
+}
+
+/* ----------------------
+   Folder Tree State (Save/Load)
+----------------------*/
+function loadFolderTreeState() {
+  const state = localStorage.getItem("folderTreeState");
+  return state ? JSON.parse(state) : {};
+}
+
+function saveFolderTreeState(state) {
+  localStorage.setItem("folderTreeState", JSON.stringify(state));
+}
+
+// Helper for getting the parent folder.
+function getParentFolder(folder) {
+  if (folder === "root") return "root";
+  const lastSlash = folder.lastIndexOf("/");
+  return lastSlash === -1 ? "root" : folder.substring(0, lastSlash);
+}
+
+/* ----------------------
+    Breadcrumb Functions
+ ----------------------*/
+
+function renderBreadcrumb(normalizedFolder) {
+  if (!normalizedFolder || normalizedFolder === "") return "";
+  const parts = normalizedFolder.split("/");
+  let breadcrumbItems = [];
+  // Use the first segment as the root.
+  breadcrumbItems.push(`<span class="breadcrumb-link" data-folder="${parts[0]}">${escapeHTML(parts[0])}</span>`);
+  let cumulative = parts[0];
+  parts.slice(1).forEach(part => {
+    cumulative += "/" + part;
+    breadcrumbItems.push(`<span class="breadcrumb-separator"> / </span>`);
+    breadcrumbItems.push(`<span class="breadcrumb-link" data-folder="${cumulative}">${escapeHTML(part)}</span>`);
+  });
+  return breadcrumbItems.join('');
+}
+
+// --- NEW: Breadcrumb Delegation Setup ---
+// bindBreadcrumbEvents(); removed in favor of delegation
+export function setupBreadcrumbDelegation() {
+  const container = document.getElementById("fileListTitle");
+  if (!container) {
+    console.error("Breadcrumb container (fileListTitle) not found.");
+    return;
+  }
+  // Remove any existing event listeners to avoid duplicates.
+  container.removeEventListener("click", breadcrumbClickHandler);
+  container.removeEventListener("dragover", breadcrumbDragOverHandler);
+  container.removeEventListener("dragleave", breadcrumbDragLeaveHandler);
+  container.removeEventListener("drop", breadcrumbDropHandler);
+
+  // Attach delegated listeners
+  container.addEventListener("click", breadcrumbClickHandler);
+  container.addEventListener("dragover", breadcrumbDragOverHandler);
+  container.addEventListener("dragleave", breadcrumbDragLeaveHandler);
+  container.addEventListener("drop", breadcrumbDropHandler);
+}
+
+// Click handler via delegation
+function breadcrumbClickHandler(e) {
+  const link = e.target.closest(".breadcrumb-link");
+  if (!link) return;
+  e.stopPropagation();
+  e.preventDefault();
+
+  const folder = link.getAttribute("data-folder");
+  window.currentFolder = folder;
+  localStorage.setItem("lastOpenedFolder", folder);
+
+  // Update the container with sanitized breadcrumbs.
+  const container = document.getElementById("fileListTitle");
+  const sanitizedBreadcrumb = DOMPurify.sanitize(renderBreadcrumb(folder));
+  container.innerHTML = t("files_in") + " (" + sanitizedBreadcrumb + ")";
+
+  expandTreePath(folder);
+  document.querySelectorAll(".folder-option").forEach(item => item.classList.remove("selected"));
+  const targetOption = document.querySelector(`.folder-option[data-folder="${folder}"]`);
+  if (targetOption) targetOption.classList.add("selected");
+  loadFileList(folder);
+}
+
+// Dragover handler via delegation
+function breadcrumbDragOverHandler(e) {
+  const link = e.target.closest(".breadcrumb-link");
+  if (!link) return;
+  e.preventDefault();
+  link.classList.add("drop-hover");
+}
+
+// Dragleave handler via delegation
+function breadcrumbDragLeaveHandler(e) {
+  const link = e.target.closest(".breadcrumb-link");
+  if (!link) return;
+  link.classList.remove("drop-hover");
+}
+
+// Drop handler via delegation
+function breadcrumbDropHandler(e) {
+  const link = e.target.closest(".breadcrumb-link");
+  if (!link) return;
+  e.preventDefault();
+  link.classList.remove("drop-hover");
+  const dropFolder = link.getAttribute("data-folder");
+  let dragData;
+  try {
+    dragData = JSON.parse(e.dataTransfer.getData("application/json"));
+  } catch (err) {
+    console.error("Invalid drag data on breadcrumb:", err);
+    return;
+  }
+  const filesToMove = dragData.files ? dragData.files : (dragData.fileName ? [dragData.fileName] : []);
+  if (filesToMove.length === 0) return;
+  fetch("moveFiles.php", {
+    method: "POST",
+    credentials: "include",
+    headers: {
+      "Content-Type": "application/json",
+      "X-CSRF-Token": document.querySelector('meta[name="csrf-token"]').getAttribute("content")
+    },
+    body: JSON.stringify({
+      source: dragData.sourceFolder,
+      files: filesToMove,
+      destination: dropFolder
+    })
+  })
+    .then(response => response.json())
+    .then(data => {
+      if (data.success) {
+        showToast(`File(s) moved successfully to ${dropFolder}!`);
+        loadFileList(dragData.sourceFolder);
+      } else {
+        showToast("Error moving files: " + (data.error || "Unknown error"));
+      }
+    })
+    .catch(error => {
+      console.error("Error moving files via drop on breadcrumb:", error);
+      showToast("Error moving files.");
+    });
+}
+
+
+/* ----------------------
+   Check Current User's Folder-Only Permission
+----------------------*/
+// This function uses localStorage values (set during login) to determine if the current user is restricted.
+// If folderOnly is "true", then the personal folder (i.e. username) is forced as the effective root.
+function checkUserFolderPermission() {
+  const username = localStorage.getItem("username");
+  console.log("checkUserFolderPermission: username =", username);
+  if (!username) {
+    console.warn("No username in localStorage; skipping getUserPermissions fetch.");
+    return Promise.resolve(false);
+  }
+  if (localStorage.getItem("folderOnly") === "true") {
+    window.userFolderOnly = true;
+    console.log("checkUserFolderPermission: using localStorage.folderOnly = true");
+    localStorage.setItem("lastOpenedFolder", username);
+    window.currentFolder = username;
+    return Promise.resolve(true);
+  }
+  return fetch("getUserPermissions.php", { credentials: "include" })
+    .then(response => response.json())
+    .then(permissionsData => {
+      console.log("checkUserFolderPermission: permissionsData =", permissionsData);
+      if (permissionsData && permissionsData[username] && permissionsData[username].folderOnly) {
+        window.userFolderOnly = true;
+        localStorage.setItem("folderOnly", "true");
+        localStorage.setItem("lastOpenedFolder", username);
+        window.currentFolder = username;
+        return true;
+      } else {
+        window.userFolderOnly = false;
+        localStorage.setItem("folderOnly", "false");
+        return false;
+      }
+    })
+    .catch(err => {
+      console.error("Error fetching user permissions:", err);
+      window.userFolderOnly = false;
+      return false;
+    });
+}
+
+/* ----------------------
+   DOM Building Functions for Folder Tree
+----------------------*/
+function renderFolderTree(tree, parentPath = "", defaultDisplay = "block") {
+  const state = loadFolderTreeState();
+  let html = `<ul class="folder-tree ${defaultDisplay === 'none' ? 'collapsed' : 'expanded'}">`;
+  for (const folder in tree) {
+    if (folder.toLowerCase() === "trash") continue;
+    const fullPath = parentPath ? parentPath + "/" + folder : folder;
+    const hasChildren = Object.keys(tree[folder]).length > 0;
+    const displayState = state[fullPath] !== undefined ? state[fullPath] : defaultDisplay;
+    html += `<li class="folder-item">`;
+    if (hasChildren) {
+      const toggleSymbol = (displayState === 'none') ? '[+]' : '[' + '<span class="custom-dash">-</span>' + ']';
+      html += `<span class="folder-toggle" data-folder="${fullPath}">${toggleSymbol}</span>`;
+    } else {
+      html += `<span class="folder-indent-placeholder"></span>`;
+    }
+    html += `<span class="folder-option" data-folder="${fullPath}">${escapeHTML(folder)}</span>`;
+    if (hasChildren) {
+      html += renderFolderTree(tree[folder], fullPath, displayState);
+    }
+    html += `</li>`;
+  }
+  html += `</ul>`;
+  return html;
+}
+
+function expandTreePath(path) {
+  const parts = path.split("/");
+  let cumulative = "";
+  parts.forEach((part, index) => {
+    cumulative = index === 0 ? part : cumulative + "/" + part;
+    const option = document.querySelector(`.folder-option[data-folder="${cumulative}"]`);
+    if (option) {
+      const li = option.parentNode;
+      const nestedUl = li.querySelector("ul");
+      if (nestedUl && (nestedUl.classList.contains("collapsed") || !nestedUl.classList.contains("expanded"))) {
+        nestedUl.classList.remove("collapsed");
+        nestedUl.classList.add("expanded");
+        const toggle = li.querySelector(".folder-toggle");
+        if (toggle) {
+          toggle.innerHTML = "[" + '<span class="custom-dash">-</span>' + "]";
+          let state = loadFolderTreeState();
+          state[cumulative] = "block";
+          saveFolderTreeState(state);
+        }
+      }
+    }
+  });
+}
+
+/* ----------------------
+   Drag & Drop Support for Folder Tree Nodes
+----------------------*/
+function folderDragOverHandler(event) {
+  event.preventDefault();
+  event.currentTarget.classList.add("drop-hover");
+}
+
+function folderDragLeaveHandler(event) {
+  event.currentTarget.classList.remove("drop-hover");
+}
+
+function folderDropHandler(event) {
+  event.preventDefault();
+  event.currentTarget.classList.remove("drop-hover");
+  const dropFolder = event.currentTarget.getAttribute("data-folder");
+  let dragData;
+  try {
+    dragData = JSON.parse(event.dataTransfer.getData("application/json"));
+  } catch (e) {
+    console.error("Invalid drag data", e);
+    return;
+  }
+  const filesToMove = dragData.files ? dragData.files : (dragData.fileName ? [dragData.fileName] : []);
+  if (filesToMove.length === 0) return;
+  fetch("moveFiles.php", {
+    method: "POST",
+    credentials: "include",
+    headers: {
+      "Content-Type": "application/json",
+      "X-CSRF-Token": document.querySelector('meta[name="csrf-token"]').getAttribute("content")
+    },
+    body: JSON.stringify({
+      source: dragData.sourceFolder,
+      files: filesToMove,
+      destination: dropFolder
+    })
+  })
+    .then(response => response.json())
+    .then(data => {
+      if (data.success) {
+        showToast(`File(s) moved successfully to ${dropFolder}!`);
+        loadFileList(dragData.sourceFolder);
+      } else {
+        showToast("Error moving files: " + (data.error || "Unknown error"));
+      }
+    })
+    .catch(error => {
+      console.error("Error moving files via drop:", error);
+      showToast("Error moving files.");
+    });
+}
+
+/* ----------------------
+   Main Folder Tree Rendering and Event Binding
+----------------------*/
+export async function loadFolderTree(selectedFolder) {
+  try {
+    // Check if the user has folder-only permission.
+    await checkUserFolderPermission();
+    
+    // Determine effective root folder.
+    const username = localStorage.getItem("username") || "root";
+    let effectiveRoot = "root";
+    let effectiveLabel = "(Root)";
+    if (window.userFolderOnly) {
+      effectiveRoot = username; // Use the username as the personal root.
+      effectiveLabel = `(Root)`;
+      // Force override of any saved folder.
+      localStorage.setItem("lastOpenedFolder", username);
+      window.currentFolder = username;
+    } else {
+      window.currentFolder = localStorage.getItem("lastOpenedFolder") || "root";
+    }
+    
+    // Build fetch URL.
+    let fetchUrl = 'getFolderList.php';
+    if (window.userFolderOnly) {
+      fetchUrl += '?restricted=1';
+    }
+    console.log("Fetching folder list from:", fetchUrl);
+    
+    // Fetch folder list from the server.
+    const response = await fetch(fetchUrl);
+    if (response.status === 401) {
+      console.error("Unauthorized: Please log in to view folders.");
+      showToast("Session expired. Please log in again.");
+      window.location.href = "logout.php";
+      return;
+    }
+    let folderData = await response.json();
+    console.log("Folder data received:", folderData);
+    let folders = [];
+    if (Array.isArray(folderData) && folderData.length && typeof folderData[0] === "object" && folderData[0].folder) {
+      folders = folderData.map(item => item.folder);
+    } else if (Array.isArray(folderData)) {
+      folders = folderData;
+    }
+    
+    // Remove any global "root" entry.
+    folders = folders.filter(folder => folder.toLowerCase() !== "root");
+    
+    // If restricted, filter folders: keep only those that start with effectiveRoot + "/" (do not include effectiveRoot itself).
+    if (window.userFolderOnly && effectiveRoot !== "root") {
+      folders = folders.filter(folder => folder.startsWith(effectiveRoot + "/"));
+      // Force current folder to be the effective root.
+      localStorage.setItem("lastOpenedFolder", effectiveRoot);
+      window.currentFolder = effectiveRoot;
+    }
+    
+    localStorage.setItem("lastOpenedFolder", window.currentFolder);
+    
+    // Render the folder tree.
+    const container = document.getElementById("folderTreeContainer");
+    if (!container) {
+      console.error("Folder tree container not found.");
+      return;
+    }
+    
+    let html = `<div id="rootRow" class="root-row">
+      <span class="folder-toggle" data-folder="${effectiveRoot}">[<span class="custom-dash">-</span>]</span>
+      <span class="folder-option root-folder-option" data-folder="${effectiveRoot}">${effectiveLabel}</span>
+    </div>`;
+    if (folders.length > 0) {
+      const tree = buildFolderTree(folders);
+      html += renderFolderTree(tree, "", "block");
+    }
+    container.innerHTML = html;
+    
+    // Attach drag/drop event listeners.
+    container.querySelectorAll(".folder-option").forEach(el => {
+      el.addEventListener("dragover", folderDragOverHandler);
+      el.addEventListener("dragleave", folderDragLeaveHandler);
+      el.addEventListener("drop", folderDropHandler);
+    });
+    
+    if (selectedFolder) {
+      window.currentFolder = selectedFolder;
+    }
+    localStorage.setItem("lastOpenedFolder", window.currentFolder);
+    
+    const titleEl = document.getElementById("fileListTitle");
+    titleEl.innerHTML = t("files_in") + " (" + renderBreadcrumb(window.currentFolder) + ")";
+    setupBreadcrumbDelegation();
+    loadFileList(window.currentFolder);
+    
+    const folderState = loadFolderTreeState();
+    if (window.currentFolder !== effectiveRoot && folderState[window.currentFolder] !== "none") {
+      expandTreePath(window.currentFolder);
+    }
+    
+    const selectedEl = container.querySelector(`.folder-option[data-folder="${window.currentFolder}"]`);
+    if (selectedEl) {
+      container.querySelectorAll(".folder-option").forEach(item => item.classList.remove("selected"));
+      selectedEl.classList.add("selected");
+    }
+    
+    container.querySelectorAll(".folder-option").forEach(el => {
+      el.addEventListener("click", function (e) {
+        e.stopPropagation();
+        container.querySelectorAll(".folder-option").forEach(item => item.classList.remove("selected"));
+        this.classList.add("selected");
+        const selected = this.getAttribute("data-folder");
+        window.currentFolder = selected;
+        localStorage.setItem("lastOpenedFolder", selected);
+        const titleEl = document.getElementById("fileListTitle");
+        titleEl.innerHTML = t("files_in") + " (" + renderBreadcrumb(selected) + ")";
+        setupBreadcrumbDelegation();
+        loadFileList(selected);
+      });
+    });
+    
+    const rootToggle = container.querySelector("#rootRow .folder-toggle");
+    if (rootToggle) {
+      rootToggle.addEventListener("click", function (e) {
+        e.stopPropagation();
+        const nestedUl = container.querySelector("#rootRow + ul");
+        if (nestedUl) {
+          let state = loadFolderTreeState();
+          if (nestedUl.classList.contains("collapsed") || !nestedUl.classList.contains("expanded")) {
+            nestedUl.classList.remove("collapsed");
+            nestedUl.classList.add("expanded");
+            this.innerHTML = "[" + '<span class="custom-dash">-</span>' + "]";
+            state[effectiveRoot] = "block";
+          } else {
+            nestedUl.classList.remove("expanded");
+            nestedUl.classList.add("collapsed");
+            this.textContent = "[+]";
+            state[effectiveRoot] = "none";
+          }
+          saveFolderTreeState(state);
+        }
+      });
+    }
+    
+    container.querySelectorAll(".folder-toggle").forEach(toggle => {
+      toggle.addEventListener("click", function (e) {
+        e.stopPropagation();
+        const siblingUl = this.parentNode.querySelector("ul");
+        const folderPath = this.getAttribute("data-folder");
+        let state = loadFolderTreeState();
+        if (siblingUl) {
+          if (siblingUl.classList.contains("collapsed") || !siblingUl.classList.contains("expanded")) {
+            siblingUl.classList.remove("collapsed");
+            siblingUl.classList.add("expanded");
+            this.innerHTML = "[" + '<span class="custom-dash">-</span>' + "]";
+            state[folderPath] = "block";
+          } else {
+            siblingUl.classList.remove("expanded");
+            siblingUl.classList.add("collapsed");
+            this.textContent = "[+]";
+            state[folderPath] = "none";
+          }
+          saveFolderTreeState(state);
+        }
+      });
+    });
+    
+  } catch (error) {
+    console.error("Error loading folder tree:", error);
+  }
+}
+
+// For backward compatibility.
+export function loadFolderList(selectedFolder) {
+  loadFolderTree(selectedFolder);
+}
+
+/* ----------------------
+   Folder Management (Rename, Delete, Create)
+----------------------*/
+document.getElementById("renameFolderBtn").addEventListener("click", openRenameFolderModal);
+document.getElementById("deleteFolderBtn").addEventListener("click", openDeleteFolderModal);
+
+function openRenameFolderModal() {
+  const selectedFolder = window.currentFolder || "root";
+  if (!selectedFolder || selectedFolder === "root") {
+    showToast("Please select a valid folder to rename.");
+    return;
+  }
+  const parts = selectedFolder.split("/");
+  document.getElementById("newRenameFolderName").value = parts[parts.length - 1];
+  document.getElementById("renameFolderModal").style.display = "block";
+  setTimeout(() => {
+    const input = document.getElementById("newRenameFolderName");
+    input.focus();
+    input.select();
+  }, 100);
+}
+
+document.getElementById("cancelRenameFolder").addEventListener("click", function () {
+  document.getElementById("renameFolderModal").style.display = "none";
+  document.getElementById("newRenameFolderName").value = "";
+});
+attachEnterKeyListener("renameFolderModal", "submitRenameFolder");
+document.getElementById("submitRenameFolder").addEventListener("click", function (event) {
+  event.preventDefault();
+  const selectedFolder = window.currentFolder || "root";
+  const newNameBasename = document.getElementById("newRenameFolderName").value.trim();
+  if (!newNameBasename || newNameBasename === selectedFolder.split("/").pop()) {
+    showToast("Please enter a valid new folder name.");
+    return;
+  }
+  const parentPath = getParentFolder(selectedFolder);
+  const newFolderFull = parentPath === "root" ? newNameBasename : parentPath + "/" + newNameBasename;
+  const csrfToken = document.querySelector('meta[name="csrf-token"]').getAttribute('content');
+  if (!csrfToken) {
+    showToast("CSRF token not loaded yet! Please try again.");
+    return;
+  }
+  fetch("renameFolder.php", {
+    method: "POST",
+    credentials: "include",
+    headers: {
+      "Content-Type": "application/json",
+      "X-CSRF-Token": csrfToken
+    },
+    body: JSON.stringify({ oldFolder: window.currentFolder, newFolder: newFolderFull })
+  })
+    .then(response => response.json())
+    .then(data => {
+      if (data.success) {
+        showToast("Folder renamed successfully!");
+        window.currentFolder = newFolderFull;
+        localStorage.setItem("lastOpenedFolder", newFolderFull);
+        loadFolderList(newFolderFull);
+      } else {
+        showToast("Error: " + (data.error || "Could not rename folder"));
+      }
+    })
+    .catch(error => console.error("Error renaming folder:", error))
+    .finally(() => {
+      document.getElementById("renameFolderModal").style.display = "none";
+      document.getElementById("newRenameFolderName").value = "";
+    });
+});
+
+function openDeleteFolderModal() {
+  const selectedFolder = window.currentFolder || "root";
+  if (!selectedFolder || selectedFolder === "root") {
+    showToast("Please select a valid folder to delete.");
+    return;
+  }
+  document.getElementById("deleteFolderMessage").textContent =
+    "Are you sure you want to delete folder " + selectedFolder + "?";
+  document.getElementById("deleteFolderModal").style.display = "block";
+}
+
+document.getElementById("cancelDeleteFolder").addEventListener("click", function () {
+  document.getElementById("deleteFolderModal").style.display = "none";
+});
+attachEnterKeyListener("deleteFolderModal", "confirmDeleteFolder");
+document.getElementById("confirmDeleteFolder").addEventListener("click", function () {
+  const selectedFolder = window.currentFolder || "root";
+  const csrfToken = document.querySelector('meta[name="csrf-token"]').getAttribute('content');
+  fetch("deleteFolder.php", {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      "X-CSRF-Token": csrfToken
+    },
+    body: JSON.stringify({ folder: selectedFolder })
+  })
+    .then(response => response.json())
+    .then(data => {
+      if (data.success) {
+        showToast("Folder deleted successfully!");
+        window.currentFolder = getParentFolder(selectedFolder);
+        localStorage.setItem("lastOpenedFolder", window.currentFolder);
+        loadFolderList(window.currentFolder);
+      } else {
+        showToast("Error: " + (data.error || "Could not delete folder"));
+      }
+    })
+    .catch(error => console.error("Error deleting folder:", error))
+    .finally(() => {
+      document.getElementById("deleteFolderModal").style.display = "none";
+    });
+});
+
+document.getElementById("createFolderBtn").addEventListener("click", function () {
+  document.getElementById("createFolderModal").style.display = "block";
+  document.getElementById("newFolderName").focus();
+});
+
+document.getElementById("cancelCreateFolder").addEventListener("click", function () {
+  document.getElementById("createFolderModal").style.display = "none";
+  document.getElementById("newFolderName").value = "";
+});
+attachEnterKeyListener("createFolderModal", "submitCreateFolder");
+document.getElementById("submitCreateFolder").addEventListener("click", function () {
+  const folderInput = document.getElementById("newFolderName").value.trim();
+  if (!folderInput) {
+    showToast("Please enter a folder name.");
+    return;
+  }
+  let selectedFolder = window.currentFolder || "root";
+  let fullFolderName = folderInput;
+  if (selectedFolder && selectedFolder !== "root") {
+    fullFolderName = selectedFolder + "/" + folderInput;
+  }
+  const csrfToken = document.querySelector('meta[name="csrf-token"]').getAttribute('content');
+  fetch("createFolder.php", {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      "X-CSRF-Token": csrfToken
+    },
+    body: JSON.stringify({
+      folderName: folderInput,
+      parent: selectedFolder === "root" ? "" : selectedFolder
+    })
+  })
+    .then(response => response.json())
+    .then(data => {
+      if (data.success) {
+        showToast("Folder created successfully!");
+        window.currentFolder = fullFolderName;
+        localStorage.setItem("lastOpenedFolder", fullFolderName);
+        loadFolderList(fullFolderName);
+      } else {
+        showToast("Error: " + (data.error || "Could not create folder"));
+      }
+      document.getElementById("createFolderModal").style.display = "none";
+      document.getElementById("newFolderName").value = "";
+    })
+    .catch(error => {
+      console.error("Error creating folder:", error);
+      document.getElementById("createFolderModal").style.display = "none";
+    });
+});
+
+// ---------- CONTEXT MENU SUPPORT FOR FOLDER MANAGER ----------
+function showFolderManagerContextMenu(x, y, menuItems) {
+  let menu = document.getElementById("folderManagerContextMenu");
+  if (!menu) {
+    menu = document.createElement("div");
+    menu.id = "folderManagerContextMenu";
+    menu.style.position = "absolute";
+    menu.style.padding = "5px 0";
+    menu.style.minWidth = "150px";
+    menu.style.zIndex = "9999";
+    document.body.appendChild(menu);
+  }
+  if (document.body.classList.contains("dark-mode")) {
+    menu.style.backgroundColor = "#2c2c2c";
+    menu.style.border = "1px solid #555";
+    menu.style.color = "#e0e0e0";
+  } else {
+    menu.style.backgroundColor = "#fff";
+    menu.style.border = "1px solid #ccc";
+    menu.style.color = "#000";
+  }
+  menu.innerHTML = "";
+  menuItems.forEach(item => {
+    const menuItem = document.createElement("div");
+    menuItem.textContent = item.label;
+    menuItem.style.padding = "5px 15px";
+    menuItem.style.cursor = "pointer";
+    menuItem.addEventListener("mouseover", () => {
+      if (document.body.classList.contains("dark-mode")) {
+        menuItem.style.backgroundColor = "#444";
+      } else {
+        menuItem.style.backgroundColor = "#f0f0f0";
+      }
+    });
+    menuItem.addEventListener("mouseout", () => {
+      menuItem.style.backgroundColor = "";
+    });
+    menuItem.addEventListener("click", () => {
+      item.action();
+      hideFolderManagerContextMenu();
+    });
+    menu.appendChild(menuItem);
+  });
+  menu.style.left = x + "px";
+  menu.style.top = y + "px";
+  menu.style.display = "block";
+}
+
+function hideFolderManagerContextMenu() {
+  const menu = document.getElementById("folderManagerContextMenu");
+  if (menu) {
+    menu.style.display = "none";
+  }
+}
+
+function folderManagerContextMenuHandler(e) {
+  e.preventDefault();
+  e.stopPropagation();
+  const target = e.target.closest(".folder-option, .breadcrumb-link");
+  if (!target) return;
+  const folder = target.getAttribute("data-folder");
+  if (!folder) return;
+  window.currentFolder = folder;
+  document.querySelectorAll(".folder-option, .breadcrumb-link").forEach(el => el.classList.remove("selected"));
+  target.classList.add("selected");
+  const menuItems = [
+    {
+      label: t("create_folder"),
+      action: () => {
+        document.getElementById("createFolderModal").style.display = "block";
+        document.getElementById("newFolderName").focus();
+      }
+    },
+    {
+      label: t("rename_folder"),
+      action: () => { openRenameFolderModal(); }
+    },
+    {
+      label: t("folder_share"),
+      action: () => { openFolderShareModal(); }
+    },
+    {
+      label: t("delete_folder"),
+      action: () => { openDeleteFolderModal(); }
+    }
+  ];
+  showFolderManagerContextMenu(e.pageX, e.pageY, menuItems);
+}
+
+function bindFolderManagerContextMenu() {
+  const container = document.getElementById("folderTreeContainer");
+  if (container) {
+    container.removeEventListener("contextmenu", folderManagerContextMenuHandler);
+    container.addEventListener("contextmenu", folderManagerContextMenuHandler, false);
+  }
+  const breadcrumbNodes = document.querySelectorAll(".breadcrumb-link");
+  breadcrumbNodes.forEach(node => {
+    node.removeEventListener("contextmenu", folderManagerContextMenuHandler);
+    node.addEventListener("contextmenu", folderManagerContextMenuHandler, false);
+  });
+}
+
+document.addEventListener("click", function () {
+  hideFolderManagerContextMenu();
+});
+
+document.addEventListener("DOMContentLoaded", function () {
+  document.addEventListener("keydown", function (e) {
+    const tag = e.target.tagName.toLowerCase();
+    if (tag === "input" || tag === "textarea" || e.target.isContentEditable) {
+      return;
+    }
+    if (e.key === "Delete" || e.key === "Backspace" || e.keyCode === 46 || e.keyCode === 8) {
+      if (window.currentFolder && window.currentFolder !== "root") {
+        e.preventDefault();
+        openDeleteFolderModal();
+      }
+    }
+  });
+});
+
+document.addEventListener("DOMContentLoaded", function () {
+  const shareFolderBtn = document.getElementById("shareFolderBtn");
+  if (shareFolderBtn) {
+    shareFolderBtn.addEventListener("click", () => {
+      const selectedFolder = window.currentFolder || "root";
+      if (!selectedFolder || selectedFolder === "root") {
+        showToast("Please select a valid folder to share.");
+        return;
+      }
+      // Call the folder share modal from the module.
+      openFolderShareModal(selectedFolder);
+    });
+  } else {
+    console.warn("shareFolderBtn element not found in the DOM.");
+  }
+});
+
+bindFolderManagerContextMenu();

js/folderShareModal.js

@@ -0,0 +1,107 @@
+// folderShareModal.js
+import { escapeHTML, showToast } from './domUtils.js';
+import { t } from './i18n.js';
+
+export function openFolderShareModal(folder) {
+  // Remove any existing folder share modal
+  const existing = document.getElementById("folderShareModal");
+  if (existing) existing.remove();
+
+  // Create the modal container
+  const modal = document.createElement("div");
+  modal.id = "folderShareModal";
+  modal.classList.add("modal");
+  modal.innerHTML = `
+    <div class="modal-content share-modal-content" style="width: 600px; max-width: 90vw;">
+      <div class="modal-header">
+        <h3>${t("share_folder")}: ${escapeHTML(folder)}</h3>
+        <span class="close-image-modal" id="closeFolderShareModal" title="Close">&times;</span>
+      </div>
+      <div class="modal-body">
+        <p>${t("set_expiration")}</p>
+        <select id="folderShareExpiration">
+          <option value="30">30 ${t("minutes")}</option>
+          <option value="60" selected>60 ${t("minutes")}</option>
+          <option value="120">120 ${t("minutes")}</option>
+          <option value="180">180 ${t("minutes")}</option>
+          <option value="240">240 ${t("minutes")}</option>
+          <option value="1440">1 ${t("day")}</option>
+        </select>
+        <p>${t("password_optional")}</p>
+        <input type="text" id="folderSharePassword" placeholder="${t("password")}" style="width: 100%;"/>
+        <br>
+        <label>
+          <input type="checkbox" id="folderShareAllowUpload"> ${t("allow_uploads")}
+        </label>
+        <br><br>
+        <button id="generateFolderShareLinkBtn" class="btn btn-primary" style="margin-top: 10px;">${t("generate_share_link")}</button>
+        <div id="folderShareLinkDisplay" style="margin-top: 10px; display: none;">
+          <p>${t("shareable_link")}</p>
+          <input type="text" id="folderShareLinkInput" readonly style="width: 100%;"/>
+          <button id="copyFolderShareLinkBtn" class="btn btn-primary" style="margin-top: 5px;">${t("copy_link")}</button>
+        </div>
+      </div>
+    </div>
+  `;
+  document.body.appendChild(modal);
+  modal.style.display = "block";
+
+  // Close button handler
+  document.getElementById("closeFolderShareModal").addEventListener("click", () => {
+    modal.remove();
+  });
+
+  // Handler for generating the share link
+  document.getElementById("generateFolderShareLinkBtn").addEventListener("click", () => {
+    const expiration = document.getElementById("folderShareExpiration").value;
+    const password = document.getElementById("folderSharePassword").value;
+    const allowUpload = document.getElementById("folderShareAllowUpload").checked ? 1 : 0;
+    
+    // Retrieve the CSRF token from the meta tag.
+    const csrfToken = document.querySelector('meta[name="csrf-token"]').getAttribute("content");
+    if (!csrfToken) {
+      showToast(t("csrf_error"));
+      return;
+    }
+    // Post to the createFolderShareLink endpoint.
+    fetch("/createFolderShareLink.php", {
+      method: "POST",
+      credentials: "include",
+      headers: {
+        "Content-Type": "application/json",
+        "X-CSRF-Token": csrfToken
+      },
+      body: JSON.stringify({
+        folder: folder,
+        expirationMinutes: parseInt(expiration, 10),
+        password: password,
+        allowUpload: allowUpload
+      })
+    })
+      .then(response => response.json())
+      .then(data => {
+        if (data.token && data.link) {
+          const shareUrl = data.link;
+          const displayDiv = document.getElementById("folderShareLinkDisplay");
+          const inputField = document.getElementById("folderShareLinkInput");
+          inputField.value = shareUrl;
+          displayDiv.style.display = "block";
+          showToast(t("share_link_generated"));
+        } else {
+          showToast(t("error_generating_share_link") + ": " + (data.error || t("unknown_error")));
+        }
+      })
+      .catch(err => {
+        console.error("Error generating folder share link:", err);
+        showToast(t("error_generating_share_link") + ": " + (err.error || t("unknown_error")));
+      });
+  });
+
+  // Copy share link button handler
+  document.getElementById("copyFolderShareLinkBtn").addEventListener("click", () => {
+    const input = document.getElementById("folderShareLinkInput");
+    input.select();
+    document.execCommand("copy");
+    showToast(t("link_copied"));
+  });
+}

js/i18n.js

@@ -0,0 +1,611 @@
+/* i18n.js */
+const translations = {
+    en: { /* English translations */
+      "please_log_in_to_continue": "Please log in to continue.",
+      "no_files_selected": "No files selected.",
+      "confirm_delete_files": "Are you sure you want to delete {count} selected file(s)?",
+      "element_not_found": "Element with id \"{id}\" not found.",
+      "search_placeholder": "Search files or tag...",
+      "file_name": "File Name",
+      "date_modified": "Date Modified",
+      "upload_date": "Upload Date",
+      "file_size": "File Size",
+      "uploader": "Uploader",
+      "enter_totp_code": "Enter TOTP Code",
+      "use_recovery_code_instead": "Use Recovery Code instead",
+      "enter_recovery_code": "Enter Recovery Code",
+      "editing": "Editing",
+      "decrease_font": "A-",
+      "increase_font": "A+",
+      "save": "Save",
+      "close": "Close",
+      "no_files_found": "No files found.",
+      "switch_to_table_view": "Switch to Table View",
+      "switch_to_gallery_view": "Switch to Gallery View",
+      "share_file": "Share File",
+      "set_expiration": "Set Expiration:",
+      "password_optional": "Password (optional):",
+      "generate_share_link": "Generate Share Link",
+      "shareable_link": "Shareable Link:",
+      "copy_link": "Copy Link",
+      "tag_file": "Tag File",
+      "tag_name": "Tag Name:",
+      "tag_color": "Tag Color:",
+      "save_tag": "Save Tag",
+      "files_in": "Files in",
+      "light_mode": "Light Mode",
+      "dark_mode": "Dark Mode",
+      "upload_instruction": "Drop files/folders here or click 'Choose files'",
+      "no_files_selected_default": "No files selected",
+      "choose_files": "Choose files",
+      "delete_selected": "Delete Selected",
+      "copy_selected": "Copy Selected",
+      "move_selected": "Move Selected",
+      "tag_selected": "Tag Selected",
+      "download_zip": "Download Zip",
+      "extract_zip": "Extract Zip",
+      "preview": "Preview",
+      "edit": "Edit",
+      "rename": "Rename",
+      "trash_empty": "Trash is empty.",
+      "no_trash_selected": "No trash items selected for restore.",
+  
+      // Additional keys for HTML translations:
+      "title": "FileRise",
+      "header_title": "FileRise",
+      "logout": "Logout",
+      "change_password": "Change Password",
+      "restore_text": "Restore or",
+      "delete_text": "Delete Trash Items",
+      "restore_selected": "Restore Selected",
+      "restore_all": "Restore All",
+      "delete_selected_trash": "Delete Selected",
+      "delete_all": "Delete All",
+      "upload_header": "Upload Files/Folders",
+  
+      // Folder Management keys:
+      "folder_navigation": "Folder Navigation & Management",
+      "create_folder": "Create Folder",
+      "create_folder_title": "Create Folder",
+      "enter_folder_name": "Enter folder name",
+      "cancel": "Cancel",
+      "create": "Create",
+      "rename_folder": "Rename Folder",
+      "rename_folder_title": "Rename Folder",
+      "rename_folder_placeholder": "Enter new folder name",
+      "delete_folder": "Delete Folder",
+      "delete_folder_title": "Delete Folder",
+      "delete_folder_message": "Are you sure you want to delete this folder?",
+      "folder_help": "Folder Help",
+      "folder_help_item_1": "Click on a folder in the tree to view its files.",
+      "folder_help_item_2": "Use [-] to collapse and [+] to expand folders.",
+      "folder_help_item_3": "Select a folder and click \"Create Folder\" to add a subfolder.",
+      "folder_help_item_4": "To rename or delete a folder, select it and then click the appropriate button.",
+  
+      // File List keys:
+      "file_list_title": "Files in (Root)",
+      "files_in": "Files in",
+      "delete_files": "Delete Files",
+      "delete_selected_files_title": "Delete Selected Files",
+      "delete_files_message": "Are you sure you want to delete the selected files?",
+      "copy_files": "Copy Files",
+      "copy_files_title": "Copy Selected Files",
+      "copy_files_message": "Select a target folder for copying the selected files:",
+      "move_files": "Move Files",
+      "move_files_title": "Move Selected Files",
+      "move_files_message": "Select a target folder for moving the selected files:",
+      "move": "Move",
+      "extract_zip_button": "Extract Zip",
+      "download_zip_title": "Download Selected Files as Zip",
+      "download_zip_prompt": "Enter a name for the zip file:",
+      "zip_placeholder": "files.zip",
+  
+      // Login Form keys:
+      "login": "Login",
+      "remember_me": "Remember me",
+      "login_oidc": "Login with OIDC",
+      "basic_http_login": "Use Basic HTTP Login",
+  
+      // Change Password keys:
+      "change_password_title": "Change Password",
+      "old_password": "Old Password",
+      "new_password": "New Password",
+      "confirm_new_password": "Confirm New Password",
+  
+      // Add User keys:
+      "create_new_user_title": "Create New User",
+      "username": "Username:",
+      "password": "Password:",
+      "grant_admin": "Grant Admin Access",
+      "save_user": "Save User",
+  
+      // Remove User keys:
+      "remove_user_title": "Remove User",
+      "select_user_remove": "Select a user to remove:",
+      "delete_user": "Delete User",
+  
+      // Rename File keys:
+      "rename_file_title": "Rename File",
+      "rename_file_placeholder": "Enter new file name",
+
+      // Folder Share
+      "share_folder": "Share Folder",
+      "allow_uploads": "Allow Uploads",
+      "share_link_generated": "Share Link Generated",
+      "error_generating_share_link": "Error Generating Share Link",
+
+      // Folder
+      "create_folder": "Create Folder",
+      "rename_folder": "Rename Folder",
+      "folder_share": "Share Folder",
+      "delete_folder": "Delete Folder",
+  
+      // Custom Confirm Modal keys:
+      "yes": "Yes",
+      "no": "No",
+      "delete": "Delete",
+      "download": "Download",
+      "upload": "Upload",
+      "copy": "Copy",
+      "extract": "Extract",
+      "user": "User:",
+      "unknown_error": "Unknown Error",
+      "link_copied": "Link Copied to Clipboard",
+      "minutes": "minutes",
+        "hours": "hours",
+        "days": "days",
+        "weeks": "weeks",
+        "months": "months",
+        "seconds": "seconds",
+  
+      // Dark Mode Toggle
+      "dark_mode_toggle": "Dark Mode",
+      "light_mode_toggle": "Light Mode"
+    },
+    es: { /* Spanish translations */
+        "please_log_in_to_continue": "Por favor, inicie sesión para continuar.",
+        "no_files_selected": "No se seleccionaron archivos.",
+        "confirm_delete_files": "¿Está seguro de que desea eliminar {count} archivo(s) seleccionado(s)?",
+        "element_not_found": "Elemento con id \"{id}\" no encontrado.",
+        "search_placeholder": "Buscar archivos o etiqueta...",
+        "file_name": "Nombre del archivo",
+        "date_modified": "Fecha de modificación",
+        "upload_date": "Fecha de carga",
+        "file_size": "Tamaño del archivo",
+        "uploader": "Cargado por",
+        "enter_totp_code": "Ingrese el código TOTP",
+        "use_recovery_code_instead": "Usar código de recuperación en su lugar",
+        "enter_recovery_code": "Ingrese el código de recuperación",
+        "editing": "Editando",
+        "decrease_font": "A-",
+        "increase_font": "A+",
+        "save": "Guardar",
+        "close": "Cerrar",
+        "no_files_found": "No se encontraron archivos.",
+        "switch_to_table_view": "Cambiar a vista de tabla",
+        "switch_to_gallery_view": "Cambiar a vista de galería",
+        "share_file": "Compartir archivo",
+        "set_expiration": "Establecer vencimiento:",
+        "password_optional": "Contraseña (opcional):",
+        "generate_share_link": "Generar enlace para compartir",
+        "shareable_link": "Enlace para compartir:",
+        "copy_link": "Copiar enlace",
+        "tag_file": "Etiquetar archivo",
+        "tag_name": "Nombre de la etiqueta:",
+        "tag_color": "Color de la etiqueta:",
+        "save_tag": "Guardar etiqueta",
+        "files_in": "Archivos en",
+        "light_mode": "Modo claro",
+        "dark_mode": "Modo oscuro",
+        "upload_instruction": "Suelte archivos/carpetas o haga clic en 'Elegir archivos'",
+        "no_files_selected_default": "No se seleccionaron archivos",
+        "choose_files": "Elegir archivos",
+        "delete_selected": "Eliminar seleccionados",
+        "copy_selected": "Copiar seleccionados",
+        "move_selected": "Mover seleccionados",
+        "tag_selected": "Etiquetar seleccionados",
+        "download_zip": "Descargar Zip",
+        "extract_zip": "Extraer Zip",
+        "preview": "Vista previa",
+        "edit": "Editar",
+        "rename": "Renombrar",
+        "trash_empty": "La papelera está vacía.",
+        "no_trash_selected": "No se seleccionaron elementos de la papelera para restaurar.",
+      
+        // Additional keys for HTML translations:
+        "title": "FileRise",
+        "header_title": "FileRise",
+        "logout": "Cerrar sesión",
+        "change_password": "Cambiar contraseña",
+        "restore_text": "Restaurar o",
+        "delete_text": "Eliminar elementos de la papelera",
+        "restore_selected": "Restaurar seleccionados",
+        "restore_all": "Restaurar todo",
+        "delete_selected_trash": "Eliminar seleccionados",
+        "delete_all": "Eliminar todo",
+        "upload_header": "Cargar archivos/carpetas",
+      
+        // Folder Management keys:
+        "folder_navigation": "Navegación y gestión de carpetas",
+        "create_folder": "Crear carpeta",
+        "create_folder_title": "Crear carpeta",
+        "enter_folder_name": "Ingrese el nombre de la carpeta",
+        "cancel": "Cancelar",
+        "create": "Crear",
+        "rename_folder": "Renombrar carpeta",
+        "rename_folder_title": "Renombrar carpeta",
+        "rename_folder_placeholder": "Ingrese el nuevo nombre de la carpeta",
+        "delete_folder": "Eliminar carpeta",
+        "delete_folder_title": "Eliminar carpeta",
+        "delete_folder_message": "¿Está seguro de que desea eliminar esta carpeta?",
+        "folder_help": "Ayuda de carpetas",
+        "folder_help_item_1": "Haga clic en una carpeta en el árbol para ver sus archivos.",
+        "folder_help_item_2": "Utilice [-] para colapsar y [+] para expandir carpetas.",
+        "folder_help_item_3": "Seleccione una carpeta y haga clic en \"Crear carpeta\" para agregar una subcarpeta.",
+        "folder_help_item_4": "Para renombrar o eliminar una carpeta, selecciónela y luego haga clic en el botón correspondiente.",
+      
+        // File List keys:
+        "file_list_title": "Archivos en (Raíz)",
+        "delete_files": "Eliminar archivos",
+        "delete_selected_files_title": "Eliminar archivos seleccionados",
+        "delete_files_message": "¿Está seguro de que desea eliminar los archivos seleccionados?",
+        "copy_files": "Copiar archivos",
+        "copy_files_title": "Copiar archivos seleccionados",
+        "copy_files_message": "Seleccione una carpeta destino para copiar los archivos seleccionados:",
+        "move_files": "Mover archivos",
+        "move_files_title": "Mover archivos seleccionados",
+        "move_files_message": "Seleccione una carpeta destino para mover los archivos seleccionados:",
+        "move": "Mover",
+        "extract_zip_button": "Extraer Zip",
+        "download_zip_title": "Descargar archivos seleccionados en Zip",
+        "download_zip_prompt": "Ingrese un nombre para el archivo Zip:",
+        "zip_placeholder": "archivos.zip",
+      
+        // Login Form keys:
+        "login": "Iniciar sesión",
+        "remember_me": "Recuérdame",
+        "login_oidc": "Iniciar sesión con OIDC",
+        "basic_http_login": "Usar autenticación HTTP básica",
+      
+        // Change Password keys:
+        "change_password_title": "Cambiar contraseña",
+        "old_password": "Contraseña antigua",
+        "new_password": "Nueva contraseña",
+        "confirm_new_password": "Confirmar nueva contraseña",
+      
+        // Add User keys:
+        "create_new_user_title": "Crear nuevo usuario",
+        "username": "Usuario:",
+        "password": "Contraseña:",
+        "grant_admin": "Otorgar acceso de administrador",
+        "save_user": "Guardar usuario",
+      
+        // Remove User keys:
+        "remove_user_title": "Eliminar usuario",
+        "select_user_remove": "Seleccione un usuario para eliminar:",
+        "delete_user": "Eliminar usuario",
+      
+        // Rename File keys:
+        "rename_file_title": "Renombrar archivo",
+        "rename_file_placeholder": "Ingrese el nuevo nombre del archivo",
+      
+        // Custom Confirm Modal keys:
+        "yes": "Sí",
+        "no": "No",
+        "delete": "Eliminar",
+        "download": "Descargar",
+        "upload": "Cargar",
+        "copy": "Copiar",
+        "extract": "Extraer",
+      
+        // Dark Mode Toggle
+        "dark_mode_toggle": "Modo oscuro"
+      },
+      fr: { /* French translations */
+        "please_log_in_to_continue": "Veuillez vous connecter pour continuer.",
+        "no_files_selected": "Aucun fichier sélectionné.",
+        "confirm_delete_files": "Êtes-vous sûr de vouloir supprimer {count} fichier(s) sélectionné(s) ?",
+        "element_not_found": "Élément avec l'id \"{id}\" non trouvé.",
+        "search_placeholder": "Rechercher des fichiers ou un tag...",
+        "file_name": "Nom du fichier",
+        "date_modified": "Date de modification",
+        "upload_date": "Date de téléchargement",
+        "file_size": "Taille du fichier",
+        "uploader": "Téléversé par",
+        "enter_totp_code": "Entrez le code TOTP",
+        "use_recovery_code_instead": "Utilisez le code de récupération à la place",
+        "enter_recovery_code": "Entrez le code de récupération",
+        "editing": "Modification",
+        "decrease_font": "A-",
+        "increase_font": "A+",
+        "save": "Enregistrer",
+        "close": "Fermer",
+        "no_files_found": "Aucun fichier trouvé.",
+        "switch_to_table_view": "Passer à la vue tableau",
+        "switch_to_gallery_view": "Passer à la vue galerie",
+        "share_file": "Partager le fichier",
+        "set_expiration": "Définir l'expiration :",
+        "password_optional": "Mot de passe (facultatif) :",
+        "generate_share_link": "Générer un lien de partage",
+        "shareable_link": "Lien partageable :",
+        "copy_link": "Copier le lien",
+        "tag_file": "Marquer le fichier",
+        "tag_name": "Nom du tag :",
+        "tag_color": "Couleur du tag :",
+        "save_tag": "Enregistrer le tag",
+        "files_in": "Fichiers dans",
+        "light_mode": "Mode clair",
+        "dark_mode": "Mode sombre",
+        "upload_instruction": "Déposez vos fichiers/dossiers ici ou cliquez sur 'Choisir des fichiers'",
+        "no_files_selected_default": "Aucun fichier sélectionné",
+        "choose_files": "Choisir des fichiers",
+        "delete_selected": "Supprimer la sélection",
+        "copy_selected": "Copier la sélection",
+        "move_selected": "Déplacer la sélection",
+        "tag_selected": "Marquer la sélection",
+        "download_zip": "Télécharger en Zip",
+        "extract_zip": "Extraire le Zip",
+        "preview": "Aperçu",
+        "edit": "Modifier",
+        "rename": "Renommer",
+        "trash_empty": "La corbeille est vide.",
+        "no_trash_selected": "Aucun élément de la corbeille sélectionné pour restauration.",
+      
+        // Additional keys for HTML translations:
+        "title": "FileRise",
+        "header_title": "FileRise",
+        "logout": "Se déconnecter",
+        "change_password": "Changer le mot de passe",
+        "restore_text": "Restaurer ou",
+        "delete_text": "Supprimer les éléments de la corbeille",
+        "restore_selected": "Restaurer la sélection",
+        "restore_all": "Restaurer tout",
+        "delete_selected_trash": "Supprimer la sélection",
+        "delete_all": "Supprimer tout",
+        "upload_header": "Téléverser des fichiers/dossiers",
+      
+        // Folder Management keys:
+        "folder_navigation": "Navigation et gestion des dossiers",
+        "create_folder": "Créer un dossier",
+        "create_folder_title": "Créer un dossier",
+        "enter_folder_name": "Entrez le nom du dossier",
+        "cancel": "Annuler",
+        "create": "Créer",
+        "rename_folder": "Renommer le dossier",
+        "rename_folder_title": "Renommer le dossier",
+        "rename_folder_placeholder": "Entrez le nouveau nom du dossier",
+        "delete_folder": "Supprimer le dossier",
+        "delete_folder_title": "Supprimer le dossier",
+        "delete_folder_message": "Êtes-vous sûr de vouloir supprimer ce dossier ?",
+        "folder_help": "Aide des dossiers",
+        "folder_help_item_1": "Cliquez sur un dossier dans l'arborescence pour voir ses fichiers.",
+        "folder_help_item_2": "Utilisez [-] pour réduire et [+] pour développer les dossiers.",
+        "folder_help_item_3": "Sélectionnez un dossier et cliquez sur \"Créer un dossier\" pour ajouter un sous-dossier.",
+        "folder_help_item_4": "Pour renommer ou supprimer un dossier, sélectionnez-le puis cliquez sur le bouton approprié.",
+      
+        // File List keys:
+        "file_list_title": "Fichiers dans (Racine)",
+        "delete_files": "Supprimer les fichiers",
+        "delete_selected_files_title": "Supprimer les fichiers sélectionnés",
+        "delete_files_message": "Êtes-vous sûr de vouloir supprimer les fichiers sélectionnés ?",
+        "copy_files": "Copier les fichiers",
+        "copy_files_title": "Copier les fichiers sélectionnés",
+        "copy_files_message": "Sélectionnez un dossier de destination pour copier les fichiers sélectionnés :",
+        "move_files": "Déplacer les fichiers",
+        "move_files_title": "Déplacer les fichiers sélectionnés",
+        "move_files_message": "Sélectionnez un dossier de destination pour déplacer les fichiers sélectionnés :",
+        "move": "Déplacer",
+        "extract_zip_button": "Extraire le Zip",
+        "download_zip_title": "Télécharger les fichiers sélectionnés en Zip",
+        "download_zip_prompt": "Entrez un nom pour le fichier Zip :",
+        "zip_placeholder": "fichiers.zip",
+      
+        // Login Form keys:
+        "login": "Connexion",
+        "remember_me": "Se souvenir de moi",
+        "login_oidc": "Connexion avec OIDC",
+        "basic_http_login": "Utiliser l'authentification HTTP basique",
+      
+        // Change Password keys:
+        "change_password_title": "Changer le mot de passe",
+        "old_password": "Ancien mot de passe",
+        "new_password": "Nouveau mot de passe",
+        "confirm_new_password": "Confirmer le nouveau mot de passe",
+      
+        // Add User keys:
+        "create_new_user_title": "Créer un nouvel utilisateur",
+        "username": "Nom d'utilisateur :",
+        "password": "Mot de passe :",
+        "grant_admin": "Accorder les droits d'administrateur",
+        "save_user": "Enregistrer l'utilisateur",
+      
+        // Remove User keys:
+        "remove_user_title": "Supprimer l'utilisateur",
+        "select_user_remove": "Sélectionnez un utilisateur à supprimer :",
+        "delete_user": "Supprimer l'utilisateur",
+      
+        // Rename File keys:
+        "rename_file_title": "Renommer le fichier",
+        "rename_file_placeholder": "Entrez le nouveau nom du fichier",
+      
+        // Custom Confirm Modal keys:
+        "yes": "Oui",
+        "no": "Non",
+        "delete": "Supprimer",
+        "download": "Télécharger",
+        "upload": "Téléverser",
+        "copy": "Copier",
+        "extract": "Extraire",
+      
+        // Dark Mode Toggle
+        "dark_mode_toggle": "Mode sombre"
+      },
+      de: {
+        "please_log_in_to_continue": "Bitte melden Sie sich an, um fortzufahren.",
+        "no_files_selected": "Keine Dateien ausgewählt.",
+        "confirm_delete_files": "Sind Sie sicher, dass Sie {count} ausgewählte Datei(en) löschen möchten?",
+        "element_not_found": "Element mit der ID \"{id}\" wurde nicht gefunden.",
+        "search_placeholder": "Suche nach Dateien oder Tags...",
+        "file_name": "Dateiname",
+        "date_modified": "Änderungsdatum",
+        "upload_date": "Hochladedatum",
+        "file_size": "Dateigröße",
+        "uploader": "Hochgeladen von",
+        "enter_totp_code": "Geben Sie den TOTP-Code ein",
+        "use_recovery_code_instead": "Verwenden Sie stattdessen den Wiederherstellungscode",
+        "enter_recovery_code": "Geben Sie den Wiederherstellungscode ein",
+        "editing": "Bearbeitung",
+        "decrease_font": "A-",
+        "increase_font": "A+",
+        "save": "Speichern",
+        "close": "Schließen",
+        "no_files_found": "Keine Dateien gefunden.",
+        "switch_to_table_view": "Zur Tabellenansicht wechseln",
+        "switch_to_gallery_view": "Zur Galerieansicht wechseln",
+        "share_file": "Datei teilen",
+        "set_expiration": "Ablauf festlegen:",
+        "password_optional": "Passwort (optional):",
+        "generate_share_link": "Freigabelink generieren",
+        "shareable_link": "Freigabelink:",
+        "copy_link": "Link kopieren",
+        "tag_file": "Datei taggen",
+        "tag_name": "Tagname:",
+        "tag_color": "Tagfarbe:",
+        "save_tag": "Tag speichern",
+        "files_in": "Dateien in",
+        "light_mode": "Heller Modus",
+        "dark_mode": "Dunkler Modus",
+        "upload_instruction": "Ziehen Sie Dateien/Ordner hierher oder klicken Sie auf 'Dateien auswählen'",
+        "no_files_selected_default": "Keine Dateien ausgewählt",
+        "choose_files": "Dateien auswählen",
+        "delete_selected": "Ausgewählte löschen",
+        "copy_selected": "Ausgewählte kopieren",
+        "move_selected": "Ausgewählte verschieben",
+        "tag_selected": "Ausgewählte taggen",
+        "download_zip": "Zip herunterladen",
+        "extract_zip": "Zip entpacken",
+        "preview": "Vorschau",
+        "edit": "Bearbeiten",
+        "rename": "Umbenennen",
+        "trash_empty": "Papierkorb ist leer.",
+        "no_trash_selected": "Keine Elemente im Papierkorb für die Wiederherstellung ausgewählt.",
+     
+        // Additional keys for HTML translations:
+        "title": "FileRise",
+        "header_title": "FileRise",
+        "logout": "Abmelden",
+        "change_password": "Passwort ändern",
+        "restore_text": "Wiederherstellen oder",
+        "delete_text": "Papierkorbeinträge löschen",
+        "restore_selected": "Ausgewählte wiederherstellen",
+        "restore_all": "Alle wiederherstellen",
+        "delete_selected_trash": "Ausgewählte löschen",
+        "delete_all": "Alle löschen",
+        "upload_header": "Dateien/Ordner hochladen",
+     
+        // Folder Management keys:
+        "folder_navigation": "Ordnernavigation & Verwaltung",
+        "create_folder": "Ordner erstellen",
+        "create_folder_title": "Ordner erstellen",
+        "enter_folder_name": "Geben Sie den Ordnernamen ein",
+        "cancel": "Abbrechen",
+        "create": "Erstellen",
+        "rename_folder": "Ordner umbenennen",
+        "rename_folder_title": "Ordner umbenennen",
+        "rename_folder_placeholder": "Neuen Ordnernamen eingeben",
+        "delete_folder": "Ordner löschen",
+        "delete_folder_title": "Ordner löschen",
+        "delete_folder_message": "Sind Sie sicher, dass Sie diesen Ordner löschen möchten?",
+        "folder_help": "Ordnerhilfe",
+        "folder_help_item_1": "Klicken Sie auf einen Ordner, um dessen Dateien anzuzeigen.",
+        "folder_help_item_2": "Verwenden Sie [-] um zu minimieren und [+] um zu erweitern.",
+        "folder_help_item_3": "Klicken Sie auf \"Ordner erstellen\", um einen Unterordner hinzuzufügen.",
+        "folder_help_item_4": "Um einen Ordner umzubenennen oder zu löschen, wählen Sie ihn und klicken Sie auf die entsprechende Schaltfläche.",
+     
+        // File List keys:
+        "file_list_title": "Dateien in (Root)",
+        "delete_files": "Dateien löschen",
+        "delete_selected_files_title": "Ausgewählte Dateien löschen",
+        "delete_files_message": "Sind Sie sicher, dass Sie die ausgewählten Dateien löschen möchten?",
+        "copy_files": "Dateien kopieren",
+        "copy_files_title": "Ausgewählte Dateien kopieren",
+        "copy_files_message": "Wählen Sie einen Zielordner, um die ausgewählten Dateien zu kopieren:",
+        "move_files": "Dateien verschieben",
+        "move_files_title": "Ausgewählte Dateien verschieben",
+        "move_files_message": "Wählen Sie einen Zielordner, um die ausgewählten Dateien zu verschieben:",
+        "move": "Verschieben",
+        "extract_zip_button": "Zip entpacken",
+        "download_zip_title": "Ausgewählte Dateien als Zip herunterladen",
+        "download_zip_prompt": "Geben Sie einen Namen für die Zip-Datei ein:",
+        "zip_placeholder": "dateien.zip",
+     
+        // Login Form keys:
+        "login": "Anmelden",
+        "remember_me": "Angemeldet bleiben",
+        "login_oidc": "Mit OIDC anmelden",
+        "basic_http_login": "HTTP-Basisauthentifizierung verwenden",
+     
+        // Change Password keys:
+        "change_password_title": "Passwort ändern",
+        "old_password": "Altes Passwort",
+        "new_password": "Neues Passwort",
+        "confirm_new_password": "Neues Passwort bestätigen",
+     
+        // Add User keys:
+        "create_new_user_title": "Neuen Benutzer erstellen",
+        "username": "Benutzername:",
+        "password": "Passwort:",
+        "grant_admin": "Admin-Rechte vergeben",
+        "save_user": "Benutzer speichern",
+     
+        // Remove User keys:
+        "remove_user_title": "Benutzer entfernen",
+        "select_user_remove": "Wählen Sie einen Benutzer zum Entfernen:",
+        "delete_user": "Benutzer löschen",
+     
+        // Rename File keys:
+        "rename_file_title": "Datei umbenennen",
+        "rename_file_placeholder": "Neuen Dateinamen eingeben",
+     
+        // Custom Confirm Modal keys:
+        "yes": "Ja",
+        "no": "Nein",
+        "delete": "Löschen",
+        "download": "Herunterladen",
+        "upload": "Hochladen",
+        "copy": "Kopieren",
+        "extract": "Entpacken",
+     
+        // Dark Mode Toggle
+        "dark_mode_toggle": "Dunkler Modus"
+      }
+  };
+  
+  let currentLocale = 'en';
+  
+  export function setLocale(locale) {
+    currentLocale = locale;
+  }
+  
+  export function t(key, placeholders) {
+    const localeTranslations = translations[currentLocale] || {};
+    let translation = localeTranslations[key] || key;
+    if (placeholders) {
+      Object.keys(placeholders).forEach(ph => {
+        translation = translation.replace(`{${ph}}`, placeholders[ph]);
+      });
+    }
+    return translation;
+  }
+
+  export function applyTranslations() {
+    document.querySelectorAll('[data-i18n-key]').forEach(el => {
+      el.innerText = t(el.getAttribute('data-i18n-key'));
+    });
+    document.querySelectorAll('[data-i18n-placeholder]').forEach(el => {
+      el.setAttribute('placeholder', t(el.getAttribute('data-i18n-placeholder')));
+    });
+    document.querySelectorAll('[data-i18n-title]').forEach(el => {
+      el.setAttribute('title', t(el.getAttribute('data-i18n-title')));
+    });
+  }

js/main.js

@@ -0,0 +1,192 @@
+import { sendRequest } from './networkUtils.js';
+import { toggleVisibility, toggleAllCheckboxes, updateFileActionButtons, showToast } from './domUtils.js';
+import { loadFolderTree } from './folderManager.js';
+import { initUpload } from './upload.js';
+import { initAuth, checkAuthentication } from './auth.js';
+import { setupTrashRestoreDelete } from './trashRestoreDelete.js';
+import { initDragAndDrop, loadSidebarOrder, loadHeaderOrder } from './dragAndDrop.js';
+import { initTagSearch, openTagModal, filterFilesByTag } from './fileTags.js';
+import { displayFilePreview } from './filePreview.js';
+import { loadFileList } from './fileListView.js';
+import { initFileActions, renameFile, openDownloadModal, confirmSingleDownload } from './fileActions.js';
+import { editFile, saveFile } from './fileEditor.js';
+import { t, applyTranslations, setLocale } from './i18n.js';
+
+function loadCsrfTokenWithRetry(retries = 3, delay = 1000) {
+  return fetch('token.php', { credentials: 'include' })
+    .then(response => {
+      if (!response.ok) {
+        throw new Error("Token fetch failed with status: " + response.status);
+      }
+      return response.json();
+    })
+    .then(data => {
+      // Set global variables.
+      window.csrfToken = data.csrf_token;
+      window.SHARE_URL = data.share_url;
+
+      // Update (or create) the CSRF meta tag.
+      let metaCSRF = document.querySelector('meta[name="csrf-token"]');
+      if (!metaCSRF) {
+        metaCSRF = document.createElement('meta');
+        metaCSRF.name = 'csrf-token';
+        document.head.appendChild(metaCSRF);
+      }
+      metaCSRF.setAttribute('content', data.csrf_token);
+
+      // Update (or create) the share URL meta tag.
+      let metaShare = document.querySelector('meta[name="share-url"]');
+      if (!metaShare) {
+        metaShare = document.createElement('meta');
+        metaShare.name = 'share-url';
+        document.head.appendChild(metaShare);
+      }
+      metaShare.setAttribute('content', data.share_url);
+
+      return data;
+    })
+    .catch(error => {
+      if (retries > 0) {
+        console.warn(`CSRF token load failed. Retrying in ${delay}ms... (${retries} retries left)`, error);
+        return new Promise(resolve => setTimeout(resolve, delay))
+          .then(() => loadCsrfTokenWithRetry(retries - 1, delay * 2));
+      }
+      console.error("Failed to load CSRF token after retries.", error);
+      throw error;
+    });
+}
+
+
+// Expose functions for inline handlers.
+window.sendRequest = sendRequest;
+window.toggleVisibility = toggleVisibility;
+window.toggleAllCheckboxes = toggleAllCheckboxes;
+window.editFile = editFile;
+window.saveFile = saveFile;
+window.renameFile = renameFile;
+window.confirmSingleDownload = confirmSingleDownload;
+window.openDownloadModal = openDownloadModal;
+
+// Global variable for the current folder.
+window.currentFolder = "root";
+
+document.addEventListener("DOMContentLoaded", function () {
+  // Retrieve the saved language from localStorage; default to "en"
+  const savedLanguage = localStorage.getItem("language") || "en";
+  // Set the locale based on the saved language
+  setLocale(savedLanguage);
+  // Apply the translations to update the UI
+  applyTranslations();
+  // First, load the CSRF token (with retry).
+  loadCsrfTokenWithRetry().then(() => {
+    // Once CSRF token is loaded, initialize authentication.
+    initAuth();
+
+    // Continue with initializations that rely on a valid CSRF token:
+    checkAuthentication().then(authenticated => {
+      if (authenticated) {
+        window.currentFolder = "root";
+        initTagSearch();
+        loadFileList(window.currentFolder);
+        initDragAndDrop();
+        loadSidebarOrder();
+        loadHeaderOrder();
+        initFileActions();
+        initUpload();
+        loadFolderTree();
+        setupTrashRestoreDelete();
+
+        const helpBtn = document.getElementById("folderHelpBtn");
+        const helpTooltip = document.getElementById("folderHelpTooltip");
+        helpBtn.addEventListener("click", function () {
+          // Toggle display of the tooltip.
+          if (helpTooltip.style.display === "none" || helpTooltip.style.display === "") {
+            helpTooltip.style.display = "block";
+          } else {
+            helpTooltip.style.display = "none";
+          }
+        });
+      } else {
+        console.warn("User not authenticated. Data loading deferred.");
+      }
+    });
+
+    // Other DOM initialization that can happen after CSRF is ready.
+    const newPasswordInput = document.getElementById("newPassword");
+    if (newPasswordInput) {
+      newPasswordInput.addEventListener("input", function () {
+        console.log("newPassword input event:", this.value);
+      });
+    } else {
+      console.error("newPassword input not found!");
+    }
+
+    // --- Dark Mode Persistence ---
+    const darkModeToggle = document.getElementById("darkModeToggle");
+    const storedDarkMode = localStorage.getItem("darkMode");
+
+    if (storedDarkMode === "true") {
+      document.body.classList.add("dark-mode");
+    } else if (storedDarkMode === "false") {
+      document.body.classList.remove("dark-mode");
+    } else {
+      if (window.matchMedia && window.matchMedia("(prefers-color-scheme: dark)").matches) {
+        document.body.classList.add("dark-mode");
+      } else {
+        document.body.classList.remove("dark-mode");
+      }
+    }
+
+    if (darkModeToggle) {
+      darkModeToggle.textContent = document.body.classList.contains("dark-mode")
+        ? "Light Mode"
+        : "Dark Mode";
+
+      darkModeToggle.addEventListener("click", function () {
+        if (document.body.classList.contains("dark-mode")) {
+          document.body.classList.remove("dark-mode");
+          localStorage.setItem("darkMode", "false");
+          darkModeToggle.textContent = "Dark Mode";
+        } else {
+          document.body.classList.add("dark-mode");
+          localStorage.setItem("darkMode", "true");
+          darkModeToggle.textContent = "Light Mode";
+        }
+      });
+    }
+
+    if (localStorage.getItem("darkMode") === null && window.matchMedia) {
+      window.matchMedia("(prefers-color-scheme: dark)").addEventListener("change", (event) => {
+        if (event.matches) {
+          document.body.classList.add("dark-mode");
+          if (darkModeToggle) darkModeToggle.textContent = t("light_mode");
+        } else {
+          document.body.classList.remove("dark-mode");
+          if (darkModeToggle) darkModeToggle.textContent = t("dark_mode");
+        }
+      });
+    }
+    // --- End Dark Mode Persistence ---
+
+    const message = sessionStorage.getItem("welcomeMessage");
+    if (message) {
+      showToast(message);
+      sessionStorage.removeItem("welcomeMessage");
+    }
+  }).catch(error => {
+    console.error("Initialization halted due to CSRF token load failure.", error);
+  });
+
+  // --- Auto-scroll During Drag ---
+  // Adjust these values as needed:
+  const SCROLL_THRESHOLD = 50; // pixels from edge to start scrolling
+  const SCROLL_SPEED = 20;     // pixels to scroll per event
+
+  document.addEventListener("dragover", function (e) {
+    if (e.clientY < SCROLL_THRESHOLD) {
+      window.scrollBy(0, -SCROLL_SPEED);
+    } else if (e.clientY > window.innerHeight - SCROLL_THRESHOLD) {
+      window.scrollBy(0, SCROLL_SPEED);
+    }
+  });
+});

js/networkUtils.js

@@ -0,0 +1,31 @@
+export function sendRequest(url, method = "GET", data = null, customHeaders = {}) {
+  const options = {
+    method,
+    credentials: 'include',
+    headers: {}
+  };
+
+  // Merge custom headers
+  Object.assign(options.headers, customHeaders);
+
+  // If data is provided and is not FormData, assume JSON.
+  if (data && !(data instanceof FormData)) {
+    if (!options.headers["Content-Type"]) {
+      options.headers["Content-Type"] = "application/json";
+    }
+    options.body = JSON.stringify(data);
+  } else if (data instanceof FormData) {
+    options.body = data;
+  }
+
+  return fetch(url, options)
+    .then(response => {
+      if (!response.ok) {
+        return response.text().then(text => {
+          throw new Error(`HTTP error ${response.status}: ${text}`);
+        });
+      }
+      const clonedResponse = response.clone();
+      return response.json().catch(() => clonedResponse.text());
+    });
+}

js/trashRestoreDelete.js

@@ -1,23 +1,17 @@
 // trashRestoreDelete.js
 import { sendRequest } from './networkUtils.js';
 import { toggleVisibility, showToast } from './domUtils.js';
-import { loadFileList } from './fileManager.js';
+import { loadFileList } from './fileListView.js';
 import { loadFolderTree } from './folderManager.js';
+import { t } from './i18n.js';
 
-/**
- * Displays a custom confirmation modal with the given message.
- * Calls onConfirm() if the user confirms.
- */
 function showConfirm(message, onConfirm) {
-    // Assume your custom confirm modal exists with id "customConfirmModal"
-    // and has elements "confirmMessage", "confirmYesBtn", and "confirmNoBtn".
     const modal = document.getElementById("customConfirmModal");
     const messageElem = document.getElementById("confirmMessage");
     const yesBtn = document.getElementById("confirmYesBtn");
     const noBtn = document.getElementById("confirmNoBtn");
 
     if (!modal || !messageElem || !yesBtn || !noBtn) {
-        // Fallback to browser confirm if custom modal is not found.
         if (confirm(message)) {
             onConfirm();
         }
@@ -42,12 +36,7 @@ function showConfirm(message, onConfirm) {
     });
 }
 
-/**
- * Sets up event listeners for trash restore and delete operations.
- * This function should be called from main.js after authentication.
- */
 export function setupTrashRestoreDelete() {
-    console.log("Setting up trash restore/delete listeners.");
 
     // --- Attach listener to the restore button (created in auth.js) to open the modal.
     const restoreBtn = document.getElementById("restoreFilesBtn");
@@ -57,7 +46,6 @@ export function setupTrashRestoreDelete() {
             loadTrashItems();
         });
     } else {
-        console.warn("restoreFilesBtn not found. It may not be available for the current user.");
         setTimeout(() => {
             const retryBtn = document.getElementById("restoreFilesBtn");
             if (retryBtn) {
@@ -78,7 +66,7 @@ export function setupTrashRestoreDelete() {
             const files = Array.from(selected).map(chk => chk.value);
             console.log("Restore Selected clicked, files:", files);
             if (files.length === 0) {
-                showToast("No trash items selected for restore.");
+                showToast(t("no_trash_selected"));
                 return;
             }
             fetch("restoreFiles.php", {
@@ -118,7 +106,7 @@ export function setupTrashRestoreDelete() {
             const files = Array.from(allChk).map(chk => chk.value);
             console.log("Restore All clicked, files:", files);
             if (files.length === 0) {
-                showToast("Trash is empty.");
+                showToast(t("trash_empty"));
                 return;
             }
             fetch("restoreFiles.php", {

js/upload.js

@@ -0,0 +1,809 @@
+import { initFileActions } from './fileActions.js';
+import { displayFilePreview } from './filePreview.js';
+import { showToast, escapeHTML } from './domUtils.js';
+import { loadFolderTree } from './folderManager.js';
+import { loadFileList } from './fileListView.js';
+import { t } from './i18n.js';
+
+/* -----------------------------------------------------
+   Helpers for Drag–and–Drop Folder Uploads (Original Code)
+----------------------------------------------------- */
+// Recursively traverse a dropped folder.
+function traverseFileTreePromise(item, path = "") {
+  return new Promise((resolve) => {
+    if (item.isFile) {
+      item.file(file => {
+        // Store relative path for folder uploads.
+        Object.defineProperty(file, 'customRelativePath', {
+          value: path + file.name,
+          writable: true,
+          configurable: true
+        });
+        resolve([file]);
+      });
+    } else if (item.isDirectory) {
+      const dirReader = item.createReader();
+      dirReader.readEntries(entries => {
+        const promises = [];
+        for (let i = 0; i < entries.length; i++) {
+          promises.push(traverseFileTreePromise(entries[i], path + item.name + "/"));
+        }
+        Promise.all(promises).then(results => resolve(results.flat()));
+      });
+    } else {
+      resolve([]);
+    }
+  });
+}
+
+// Recursively retrieve files from DataTransfer items.
+function getFilesFromDataTransferItems(items) {
+  const promises = [];
+  for (let i = 0; i < items.length; i++) {
+    const entry = items[i].webkitGetAsEntry();
+    if (entry) {
+      promises.push(traverseFileTreePromise(entry));
+    }
+  }
+  return Promise.all(promises).then(results => results.flat());
+}
+
+function setDropAreaDefault() {
+  const dropArea = document.getElementById("uploadDropArea");
+  if (dropArea) {
+    dropArea.innerHTML = `
+      <div id="uploadInstruction" class="upload-instruction">
+       ${t("upload_instruction")}
+      </div>
+      <div id="uploadFileRow" class="upload-file-row">
+        <button id="customChooseBtn" type="button">${t("choose_files")}</button>
+      </div>
+      <div id="fileInfoWrapper" class="file-info-wrapper">
+        <div id="fileInfoContainer" class="file-info-container">
+          <span id="fileInfoDefault"> ${t("no_files_selected_default")}</span>
+        </div>
+      </div>
+      <!-- File input for file picker (files only) -->
+      <input type="file" id="file" name="file[]" class="form-control-file" multiple style="opacity:0; position:absolute; width:1px; height:1px;" />
+    `;
+  }
+}
+
+function adjustFolderHelpExpansion() {
+  const uploadCard = document.getElementById("uploadCard");
+  const folderHelpDetails = document.querySelector(".folder-help-details");
+  if (uploadCard && folderHelpDetails) {
+    if (uploadCard.offsetHeight > 400) {
+      folderHelpDetails.setAttribute("open", "");
+    } else {
+      folderHelpDetails.removeAttribute("open");
+    }
+  }
+}
+
+function adjustFolderHelpExpansionClosed() {
+  const folderHelpDetails = document.querySelector(".folder-help-details");
+  if (folderHelpDetails) {
+    folderHelpDetails.removeAttribute("open");
+  }
+}
+
+function updateFileInfoCount() {
+  const fileInfoContainer = document.getElementById("fileInfoContainer");
+  if (fileInfoContainer && window.selectedFiles) {
+    if (window.selectedFiles.length === 0) {
+      fileInfoContainer.innerHTML = `<span id="fileInfoDefault">No files selected</span>`;
+    } else if (window.selectedFiles.length === 1) {
+      fileInfoContainer.innerHTML = `
+        <div id="filePreviewContainer" class="file-preview-container" style="display:inline-block;">
+          <span class="material-icons file-icon">insert_drive_file</span>
+        </div>
+        <span id="fileNameDisplay" class="file-name-display">${escapeHTML(window.selectedFiles[0].name || window.selectedFiles[0].fileName || "Unnamed File")}</span>
+      `;
+    } else {
+      fileInfoContainer.innerHTML = `
+        <div id="filePreviewContainer" class="file-preview-container" style="display:inline-block;">
+          <span class="material-icons file-icon">insert_drive_file</span>
+        </div>
+        <span id="fileCountDisplay" class="file-name-display">${window.selectedFiles.length} files selected</span>
+      `;
+    }
+    const previewContainer = document.getElementById("filePreviewContainer");
+    if (previewContainer && window.selectedFiles.length > 0) {
+      previewContainer.innerHTML = "";
+      // For image files, try to show a preview (if available from the file object).
+      displayFilePreview(window.selectedFiles[0].file || window.selectedFiles[0], previewContainer);
+    }
+  }
+}
+
+// Helper function to repeatedly call removeChunks.php
+function removeChunkFolderRepeatedly(identifier, csrfToken, maxAttempts = 3, interval = 1000) {
+  let attempt = 0;
+  const removalInterval = setInterval(() => {
+    attempt++;
+    const params = new URLSearchParams();
+    // Prefix with "resumable_" to match your PHP regex.
+    params.append('folder', 'resumable_' + identifier);
+    params.append('csrf_token', csrfToken);
+    fetch('removeChunks.php', {
+      method: 'POST',
+      credentials: 'include',
+      headers: {
+        'Content-Type': 'application/x-www-form-urlencoded'
+      },
+      body: params.toString()
+    })
+      .then(response => response.json())
+      .then(data => {
+        console.log(`Chunk folder removal attempt ${attempt}:`, data);
+      })
+      .catch(err => {
+        console.error(`Error on removal attempt ${attempt}:`, err);
+      });
+    if (attempt >= maxAttempts) {
+      clearInterval(removalInterval);
+    }
+  }, interval);
+}
+
+/* -----------------------------------------------------
+   File Entry Creation (with Pause/Resume and Restart)
+----------------------------------------------------- */
+// Create a file entry element with a remove button and a pause/resume button.
+function createFileEntry(file) {
+  const li = document.createElement("li");
+  li.classList.add("upload-progress-item");
+  li.style.display = "flex";
+  li.dataset.uploadIndex = file.uploadIndex;
+
+  // Remove button (always added)
+  const removeBtn = document.createElement("button");
+  removeBtn.classList.add("remove-file-btn");
+  removeBtn.textContent = "×";
+// In your remove button event listener, replace the fetch call with:
+removeBtn.addEventListener("click", function (e) {
+  e.stopPropagation();
+  const uploadIndex = file.uploadIndex;
+  window.selectedFiles = window.selectedFiles.filter(f => f.uploadIndex !== uploadIndex);
+  
+  // Cancel the file upload if possible.
+  if (typeof file.cancel === "function") {
+    file.cancel();
+    console.log("Canceled file upload:", file.fileName);
+  }
+  
+  // Remove file from the resumable queue.
+  if (resumableInstance && typeof resumableInstance.removeFile === "function") {
+    resumableInstance.removeFile(file);
+  }
+  
+  // Call our helper repeatedly to remove the chunk folder.
+  if (file.uniqueIdentifier) {
+    removeChunkFolderRepeatedly(file.uniqueIdentifier, window.csrfToken, 3, 1000);
+  }
+  
+  li.remove();
+  updateFileInfoCount();
+});
+  li.removeBtn = removeBtn;
+  li.appendChild(removeBtn);
+
+  // Add pause/resume/restart button if the file supports pause/resume.
+// Conditionally add the pause/resume button only if file.pause is available
+// Pause/Resume button (for resumable file–picker uploads)
+if (typeof file.pause === "function") {
+  const pauseResumeBtn = document.createElement("button");
+  pauseResumeBtn.setAttribute("type", "button"); // not a submit button
+  pauseResumeBtn.classList.add("pause-resume-btn");
+  // Start with pause icon and disable button until upload starts
+  pauseResumeBtn.innerHTML = '<span class="material-icons pauseResumeBtn">pause_circle_outline</span>';
+  pauseResumeBtn.disabled = true; 
+  pauseResumeBtn.addEventListener("click", function (e) {
+    e.stopPropagation();
+    if (file.isError) {
+      // If the file previously failed, try restarting upload.
+      if (typeof file.retry === "function") {
+        file.retry();
+        file.isError = false;
+        pauseResumeBtn.innerHTML = '<span class="material-icons pauseResumeBtn">pause_circle_outline</span>';
+      }
+    } else if (!file.paused) {
+      // Pause the upload (if possible)
+      if (typeof file.pause === "function") {
+        file.pause();
+        file.paused = true;
+        pauseResumeBtn.innerHTML = '<span class="material-icons pauseResumeBtn">play_circle_outline</span>';
+      } else {
+      }
+    } else if (file.paused) {
+      // Resume sequence: first call to resume (or upload() fallback)
+      if (typeof file.resume === "function") {
+        file.resume();
+      } else {
+        resumableInstance.upload();
+      }
+      // After a short delay, pause again then resume
+      setTimeout(() => {
+        if (typeof file.pause === "function") {
+          file.pause();
+        } else {
+          resumableInstance.upload();
+        }
+        setTimeout(() => {
+          if (typeof file.resume === "function") {
+            file.resume();
+          } else {
+            resumableInstance.upload();
+          }
+        }, 100);
+      }, 100);
+      file.paused = false;
+      pauseResumeBtn.innerHTML = '<span class="material-icons pauseResumeBtn">pause_circle_outline</span>';
+    } else {
+      console.error("Pause/resume function not available for file", file);
+    }
+  });
+  li.appendChild(pauseResumeBtn);
+}
+
+  // Preview element
+  const preview = document.createElement("div");
+  preview.className = "file-preview";
+  displayFilePreview(file, preview);
+  li.appendChild(preview);
+
+  // File name display
+  const nameDiv = document.createElement("div");
+  nameDiv.classList.add("upload-file-name");
+  nameDiv.textContent = file.name || file.fileName || "Unnamed File";
+  li.appendChild(nameDiv);
+
+  // Progress bar container
+  const progDiv = document.createElement("div");
+  progDiv.classList.add("progress", "upload-progress-div");
+  progDiv.style.flex = "0 0 250px";
+  progDiv.style.marginLeft = "5px";
+  const progBar = document.createElement("div");
+  progBar.classList.add("progress-bar");
+  progBar.style.width = "0%";
+  progBar.innerText = "0%";
+  progDiv.appendChild(progBar);
+  li.appendChild(progDiv);
+
+  li.progressBar = progBar;
+  li.startTime = Date.now();
+  return li;
+}
+
+/* -----------------------------------------------------
+   Processing Files
+   - For drag–and–drop, use original processing (supports folders).
+   - For file picker, if using Resumable, those files use resumable.
+----------------------------------------------------- */
+function processFiles(filesInput) {
+  const fileInfoContainer = document.getElementById("fileInfoContainer");
+  const files = Array.from(filesInput);
+
+  if (fileInfoContainer) {
+    if (files.length > 0) {
+      if (files.length === 1) {
+        fileInfoContainer.innerHTML = `
+          <div id="filePreviewContainer" class="file-preview-container" style="display:inline-block;">
+            <span class="material-icons file-icon">insert_drive_file</span>
+          </div>
+          <span id="fileNameDisplay" class="file-name-display">${escapeHTML(files[0].name || files[0].fileName || "Unnamed File")}</span>
+        `;
+      } else {
+        fileInfoContainer.innerHTML = `
+          <div id="filePreviewContainer" class="file-preview-container" style="display:inline-block;">
+            <span class="material-icons file-icon">insert_drive_file</span>
+          </div>
+          <span id="fileCountDisplay" class="file-name-display">${files.length} files selected</span>
+        `;
+      }
+      const previewContainer = document.getElementById("filePreviewContainer");
+      if (previewContainer) {
+        previewContainer.innerHTML = "";
+        displayFilePreview(files[0], previewContainer);
+      }
+    } else {
+      fileInfoContainer.innerHTML = `<span id="fileInfoDefault">No files selected</span>`;
+    }
+  }
+
+  files.forEach((file, index) => {
+    file.uploadIndex = index;
+  });
+
+  const progressContainer = document.getElementById("uploadProgressContainer");
+  progressContainer.innerHTML = "";
+
+  if (files.length > 0) {
+    const maxDisplay = 10;
+    const list = document.createElement("ul");
+    list.classList.add("upload-progress-list");
+
+    // Check for relative paths (for folder uploads).
+    const hasRelativePaths = files.some(file => {
+      const rel = file.webkitRelativePath || file.customRelativePath || "";
+      return rel.trim() !== "";
+    });
+
+    if (hasRelativePaths) {
+      // Group files by folder.
+      const fileGroups = {};
+      files.forEach(file => {
+        let folderName = "Root";
+        const relativePath = file.webkitRelativePath || file.customRelativePath || "";
+        if (relativePath.trim() !== "") {
+          const parts = relativePath.split("/");
+          if (parts.length > 1) {
+            folderName = parts.slice(0, parts.length - 1).join("/");
+          }
+        }
+        if (!fileGroups[folderName]) {
+          fileGroups[folderName] = [];
+        }
+        fileGroups[folderName].push(file);
+      });
+
+      Object.keys(fileGroups).forEach(folderName => {
+        // Only show folder grouping if folderName is not "Root"
+        if (folderName !== "Root") {
+          const folderLi = document.createElement("li");
+          folderLi.classList.add("upload-folder-group");
+          folderLi.innerHTML = `<i class="material-icons folder-icon" style="vertical-align:middle; margin-right:8px;">folder</i> ${folderName}:`;
+          list.appendChild(folderLi);
+        }
+        const nestedUl = document.createElement("ul");
+        nestedUl.classList.add("upload-folder-group-list");
+        fileGroups[folderName]
+          .sort((a, b) => a.uploadIndex - b.uploadIndex)
+          .forEach(file => {
+            const li = createFileEntry(file);
+            nestedUl.appendChild(li);
+          });
+        list.appendChild(nestedUl);
+      });
+    } else {
+      // No relative paths – list files directly.
+      files.forEach((file, index) => {
+        const li = createFileEntry(file);
+        li.style.display = (index < maxDisplay) ? "flex" : "none";
+        li.dataset.uploadIndex = index;
+        list.appendChild(li);
+      });
+      if (files.length > maxDisplay) {
+        const extra = document.createElement("li");
+        extra.classList.add("upload-progress-extra");
+        extra.textContent = `Uploading additional ${files.length - maxDisplay} file(s)...`;
+        extra.style.display = "flex";
+        list.appendChild(extra);
+      }
+    }
+    const listWrapper = document.createElement("div");
+    listWrapper.classList.add("upload-progress-wrapper");
+    listWrapper.style.maxHeight = "300px";
+    listWrapper.style.overflowY = "auto";
+    listWrapper.appendChild(list);
+    progressContainer.appendChild(listWrapper);
+  }
+
+  adjustFolderHelpExpansion();
+  window.addEventListener("resize", adjustFolderHelpExpansion);
+
+  window.selectedFiles = files;
+  updateFileInfoCount();
+}
+
+/* -----------------------------------------------------
+   Resumable.js Integration for File Picker Uploads
+   (Only files chosen via file input use Resumable; folder uploads use original code.)
+----------------------------------------------------- */
+const useResumable = true; // Enable resumable for file picker uploads
+let resumableInstance;
+function initResumableUpload() {
+  resumableInstance = new Resumable({
+    target: "upload.php",
+    query: { folder: window.currentFolder || "root", upload_token: window.csrfToken },
+    chunkSize: 1.5 * 1024 * 1024, // 1.5 MB chunks
+    simultaneousUploads: 3,
+    testChunks: false,
+    throttleProgressCallbacks: 1,
+    headers: { "X-CSRF-Token": window.csrfToken }
+  });
+
+  const fileInput = document.getElementById("file");
+  if (fileInput) {
+    // Assign Resumable to file input for file picker uploads.
+    resumableInstance.assignBrowse(fileInput);
+    fileInput.addEventListener("change", function () {
+      for (let i = 0; i < fileInput.files.length; i++) {
+        resumableInstance.addFile(fileInput.files[i]);
+      }
+    });
+  }
+
+  resumableInstance.on("fileAdded", function (file) {
+    // Initialize custom paused flag
+    file.paused = false;
+    file.uploadIndex = file.uniqueIdentifier;
+    if (!window.selectedFiles) {
+      window.selectedFiles = [];
+    }
+    window.selectedFiles.push(file);
+    const progressContainer = document.getElementById("uploadProgressContainer");
+
+    // Check if a wrapper already exists; if not, create one with a UL inside.
+    let listWrapper = progressContainer.querySelector(".upload-progress-wrapper");
+    let list;
+    if (!listWrapper) {
+      listWrapper = document.createElement("div");
+      listWrapper.classList.add("upload-progress-wrapper");
+      listWrapper.style.maxHeight = "300px";
+      listWrapper.style.overflowY = "auto";
+      list = document.createElement("ul");
+      list.classList.add("upload-progress-list");
+      listWrapper.appendChild(list);
+      progressContainer.appendChild(listWrapper);
+    } else {
+      list = listWrapper.querySelector("ul.upload-progress-list");
+    }
+
+    const li = createFileEntry(file);
+    li.dataset.uploadIndex = file.uniqueIdentifier;
+    list.appendChild(li);
+    updateFileInfoCount();
+  });
+
+  resumableInstance.on("fileProgress", function(file) {
+    const progress = file.progress(); // value between 0 and 1
+    const percent = Math.floor(progress * 100);
+    const li = document.querySelector(`li.upload-progress-item[data-upload-index="${file.uniqueIdentifier}"]`);
+    if (li && li.progressBar) {
+      if (percent < 99) {
+        li.progressBar.style.width = percent + "%";
+        
+        // Calculate elapsed time and speed.
+        const elapsed = (Date.now() - li.startTime) / 1000;
+        let speed = "";
+        if (elapsed > 0) {
+          const bytesUploaded = progress * file.size;
+          const spd = bytesUploaded / elapsed;
+          if (spd < 1024) {
+            speed = spd.toFixed(0) + " B/s";
+          } else if (spd < 1048576) {
+            speed = (spd / 1024).toFixed(1) + " KB/s";
+          } else {
+            speed = (spd / 1048576).toFixed(1) + " MB/s";
+          }
+        }
+        li.progressBar.innerText = percent + "% (" + speed + ")";
+      } else {
+        // When progress reaches 99% or higher, show only a spinner icon.
+        li.progressBar.style.width = "100%";
+        li.progressBar.innerHTML = '<i class="material-icons spinning" style="vertical-align: middle;">autorenew</i>';
+      }
+      
+      // Enable the pause/resume button once progress starts.
+      const pauseResumeBtn = li.querySelector(".pause-resume-btn");
+      if (pauseResumeBtn) {
+        pauseResumeBtn.disabled = false;
+      }
+    }
+  });
+  
+  resumableInstance.on("fileSuccess", function(file, message) {
+    const li = document.querySelector(`li.upload-progress-item[data-upload-index="${file.uniqueIdentifier}"]`);
+    if (li && li.progressBar) {
+      li.progressBar.style.width = "100%";
+      li.progressBar.innerText = "Done";
+      // Hide pause/resume and remove buttons for successful files.
+      const pauseResumeBtn = li.querySelector(".pause-resume-btn");
+      if (pauseResumeBtn) {
+        pauseResumeBtn.style.display = "none";
+      }
+      const removeBtn = li.querySelector(".remove-file-btn");
+      if (removeBtn) {
+        removeBtn.style.display = "none";
+      }
+      // Schedule removal of the file entry after 5 seconds.
+      setTimeout(() => {
+        li.remove();
+        window.selectedFiles = window.selectedFiles.filter(f => f.uniqueIdentifier !== file.uniqueIdentifier);
+        updateFileInfoCount();
+      }, 5000);
+    }
+    loadFileList(window.currentFolder);
+  });
+  
+
+
+  resumableInstance.on("fileError", function (file, message) {
+    const li = document.querySelector(`li.upload-progress-item[data-upload-index="${file.uniqueIdentifier}"]`);
+    if (li && li.progressBar) {
+      li.progressBar.innerText = "Error";
+    }
+    // Mark file as errored so that the pause/resume button acts as a restart button.
+    file.isError = true;
+    const pauseResumeBtn = li ? li.querySelector(".pause-resume-btn") : null;
+    if (pauseResumeBtn) {
+      pauseResumeBtn.innerHTML = '<span class="material-icons pauseResumeBtn">replay</span>';
+      pauseResumeBtn.disabled = false;
+    }
+    showToast("Error uploading file: " + file.fileName);
+  });
+
+  resumableInstance.on("complete", function () {
+    // If any file is marked with an error, leave the list intact.
+    const hasError = window.selectedFiles.some(f => f.isError);
+    if (!hasError) {
+      // All files succeeded—clear the file input and progress container after 5 seconds.
+      setTimeout(() => {
+        const fileInput = document.getElementById("file");
+        if (fileInput) fileInput.value = "";
+        const progressContainer = document.getElementById("uploadProgressContainer");
+        progressContainer.innerHTML = "";
+        window.selectedFiles = [];
+        adjustFolderHelpExpansionClosed();
+        const fileInfoContainer = document.getElementById("fileInfoContainer");
+        if (fileInfoContainer) {
+          fileInfoContainer.innerHTML = `<span id="fileInfoDefault">No files selected</span>`;
+        }
+        const dropArea = document.getElementById("uploadDropArea");
+        if (dropArea) setDropAreaDefault();
+      }, 5000);
+    } else {
+      showToast("Some files failed to upload. Please check the list.");
+    }
+  });
+}
+
+/* -----------------------------------------------------
+   XHR-based submitFiles for Drag–and–Drop (Folder) Uploads
+----------------------------------------------------- */
+function submitFiles(allFiles) {
+  const folderToUse = window.currentFolder || "root";
+  const progressContainer = document.getElementById("uploadProgressContainer");
+  const fileInput = document.getElementById("file");
+
+  const progressElements = {};
+  const listItems = progressContainer.querySelectorAll("li.upload-progress-item");
+  listItems.forEach(item => {
+    progressElements[item.dataset.uploadIndex] = item;
+  });
+
+  let finishedCount = 0;
+  let allSucceeded = true;
+  const uploadResults = new Array(allFiles.length).fill(false);
+
+  allFiles.forEach(file => {
+    const formData = new FormData();
+    formData.append("file[]", file);
+    formData.append("folder", folderToUse);
+    // Append CSRF token as "upload_token"
+    formData.append("upload_token", window.csrfToken);
+    const relativePath = file.webkitRelativePath || file.customRelativePath || "";
+    if (relativePath.trim() !== "") {
+      formData.append("relativePath", relativePath);
+    }
+    const xhr = new XMLHttpRequest();
+    let currentPercent = 0;
+
+    xhr.upload.addEventListener("progress", function (e) {
+      if (e.lengthComputable) {
+        currentPercent = Math.round((e.loaded / e.total) * 100);
+        const li = progressElements[file.uploadIndex];
+        if (li) {
+          const elapsed = (Date.now() - li.startTime) / 1000;
+          let speed = "";
+          if (elapsed > 0) {
+            const spd = e.loaded / elapsed;
+            if (spd < 1024) speed = spd.toFixed(0) + " B/s";
+            else if (spd < 1048576) speed = (spd / 1024).toFixed(1) + " KB/s";
+            else speed = (spd / 1048576).toFixed(1) + " MB/s";
+          }
+          li.progressBar.style.width = currentPercent + "%";
+          li.progressBar.innerText = currentPercent + "% (" + speed + ")";
+        }
+      }
+    });
+
+    xhr.addEventListener("load", function () {
+      let jsonResponse;
+      try {
+        jsonResponse = JSON.parse(xhr.responseText);
+      } catch (e) {
+        jsonResponse = null;
+      }
+      const li = progressElements[file.uploadIndex];
+      if (xhr.status >= 200 && xhr.status < 300 && (!jsonResponse || !jsonResponse.error)) {
+        if (li) {
+          li.progressBar.style.width = "100%";
+          li.progressBar.innerText = "Done";
+          if (li.removeBtn) li.removeBtn.style.display = "none";
+        }
+        uploadResults[file.uploadIndex] = true;
+      } else {
+        if (li) {
+          li.progressBar.innerText = "Error";
+        }
+        allSucceeded = false;
+      }
+      finishedCount++;
+      if (finishedCount === allFiles.length) {
+        refreshFileList(allFiles, uploadResults, progressElements);
+      }
+    });
+
+    xhr.addEventListener("error", function () {
+      const li = progressElements[file.uploadIndex];
+      if (li) {
+        li.progressBar.innerText = "Error";
+      }
+      uploadResults[file.uploadIndex] = false;
+      allSucceeded = false;
+      finishedCount++;
+      if (finishedCount === allFiles.length) {
+        refreshFileList(allFiles, uploadResults, progressElements);
+      }
+    });
+
+    xhr.addEventListener("abort", function () {
+      const li = progressElements[file.uploadIndex];
+      if (li) {
+        li.progressBar.innerText = "Aborted";
+      }
+      uploadResults[file.uploadIndex] = false;
+      allSucceeded = false;
+      finishedCount++;
+      if (finishedCount === allFiles.length) {
+        refreshFileList(allFiles, uploadResults, progressElements);
+      }
+    });
+
+    xhr.open("POST", "upload.php", true);
+    xhr.setRequestHeader("X-CSRF-Token", window.csrfToken);
+    xhr.send(formData);
+  });
+
+  function refreshFileList(allFiles, uploadResults, progressElements) {
+    loadFileList(folderToUse)
+      .then(serverFiles => {
+        initFileActions();
+        serverFiles = (serverFiles || []).map(item => item.name.trim().toLowerCase());
+        let overallSuccess = true;
+        allFiles.forEach(file => {
+          const clientFileName = file.name.trim().toLowerCase();
+          const li = progressElements[file.uploadIndex];
+          if (!uploadResults[file.uploadIndex] || !serverFiles.includes(clientFileName)) {
+            if (li) {
+              li.progressBar.innerText = "Error";
+            }
+            overallSuccess = false;
+          } else if (li) {
+            // Schedule removal of successful file entry after 5 seconds.
+            setTimeout(() => {
+              li.remove();
+              delete progressElements[file.uploadIndex];
+              updateFileInfoCount();
+              const progressContainer = document.getElementById("uploadProgressContainer");
+              if (progressContainer && progressContainer.querySelectorAll("li.upload-progress-item").length === 0) {
+                const fileInput = document.getElementById("file");
+                if (fileInput) fileInput.value = "";
+                progressContainer.innerHTML = "";
+                adjustFolderHelpExpansionClosed();
+                const fileInfoContainer = document.getElementById("fileInfoContainer");
+                if (fileInfoContainer) {
+                  fileInfoContainer.innerHTML = `<span id="fileInfoDefault">No files selected</span>`;
+                }
+                const dropArea = document.getElementById("uploadDropArea");
+                if (dropArea) setDropAreaDefault();
+              }
+            }, 5000);
+          }
+        });
+        
+        if (!overallSuccess) {
+          showToast("Some files failed to upload. Please check the list.");
+        }
+      })
+      .catch(error => {
+        console.error("Error fetching file list:", error);
+        showToast("Some files may have failed to upload. Please check the list.");
+      })
+      .finally(() => {
+        loadFolderTree(window.currentFolder);
+      });
+  }
+}
+
+/* -----------------------------------------------------
+   Main initUpload: Sets up file input, drop area, and form submission.
+----------------------------------------------------- */
+function initUpload() {
+  const fileInput = document.getElementById("file");
+  const dropArea = document.getElementById("uploadDropArea");
+  const uploadForm = document.getElementById("uploadFileForm");
+
+  // For file picker, remove directory attributes so only files can be chosen.
+  if (fileInput) {
+    fileInput.removeAttribute("webkitdirectory");
+    fileInput.removeAttribute("mozdirectory");
+    fileInput.removeAttribute("directory");
+    fileInput.setAttribute("multiple", "");
+  }
+
+  setDropAreaDefault();
+
+  // Drag–and–drop events (for folder uploads) use original processing.
+  if (dropArea) {
+    dropArea.classList.add("upload-drop-area");
+    dropArea.addEventListener("dragover", function (e) {
+      e.preventDefault();
+      dropArea.style.backgroundColor = document.body.classList.contains("dark-mode") ? "#333" : "#f8f8f8";
+    });
+    dropArea.addEventListener("dragleave", function (e) {
+      e.preventDefault();
+      dropArea.style.backgroundColor = "";
+    });
+    dropArea.addEventListener("drop", function (e) {
+      e.preventDefault();
+      dropArea.style.backgroundColor = "";
+      const dt = e.dataTransfer;
+      if (dt.items && dt.items.length > 0) {
+        getFilesFromDataTransferItems(dt.items).then(files => {
+          if (files.length > 0) {
+            processFiles(files);
+          }
+        });
+      } else if (dt.files && dt.files.length > 0) {
+        processFiles(dt.files);
+      }
+    });
+    // Clicking drop area triggers file input.
+    dropArea.addEventListener("click", function () {
+      if (fileInput) fileInput.click();
+    });
+  }
+
+  if (fileInput) {
+    fileInput.addEventListener("change", function () {
+      if (useResumable) {
+        // For file picker, if resumable is enabled, let it handle the files.
+        for (let i = 0; i < fileInput.files.length; i++) {
+          resumableInstance.addFile(fileInput.files[i]);
+        }
+      } else {
+        processFiles(fileInput.files);
+      }
+    });
+  }
+
+  if (uploadForm) {
+    uploadForm.addEventListener("submit", function (e) {
+      e.preventDefault();
+      const files = window.selectedFiles || (fileInput ? fileInput.files : []);
+      if (!files || files.length === 0) {
+        showToast("No files selected.");
+        return;
+      }
+      // If files come from file picker (no relative path), use Resumable.
+      if (useResumable && (!files[0].customRelativePath || files[0].customRelativePath === "")) {
+        // Ensure current folder is updated.
+        resumableInstance.opts.query.folder = window.currentFolder || "root";
+        resumableInstance.upload();
+        showToast("Resumable upload started...");
+      } else {
+        submitFiles(files);
+      }
+    });
+  }
+
+  if (useResumable) {
+    initResumableUpload();
+  }
+}
+
+export { initUpload };

login_basic.php

@@ -0,0 +1,120 @@
+<?php
+require_once 'config.php';
+
+$usersFile = USERS_DIR . USERS_FILE;  // Make sure the users file path is defined
+
+// Helper: retrieve a user's TOTP secret from users.txt
+function getUserTOTPSecret($username) {
+    global $encryptionKey, $usersFile;
+    if (!file_exists($usersFile)) return null;
+    foreach (file($usersFile, FILE_IGNORE_NEW_LINES|FILE_SKIP_EMPTY_LINES) as $line) {
+        $parts = explode(':', trim($line));
+        if (count($parts) >= 4 && $parts[0] === $username && !empty($parts[3])) {
+            return decryptData($parts[3], $encryptionKey);
+        }
+    }
+    return null;
+}
+
+// Reuse the same authentication function
+function authenticate($username, $password)
+{
+    global $usersFile;
+    if (!file_exists($usersFile)) {
+        error_log("authenticate(): users file not found");
+        return false;
+    }
+    $lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    foreach ($lines as $line) {
+        list($storedUser, $storedPass, $storedRole) = explode(':', trim($line), 3);
+        if ($username === $storedUser && password_verify($password, $storedPass)) {
+            return $storedRole; // Return the user's role
+        }
+    }
+    error_log("authenticate(): authentication failed for '$username'");
+    return false;
+}
+
+// Define helper function to get a user's role from users.txt
+function getUserRole($username) {
+    global $usersFile;
+    if (file_exists($usersFile)) {
+        $lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+        foreach ($lines as $line) {
+            $parts = explode(":", trim($line));
+            if (count($parts) >= 3 && $parts[0] === $username) {
+                return trim($parts[2]);
+            }
+        }
+    }
+    return null;
+}
+
+// Add the loadFolderPermission function here:
+function loadFolderPermission($username) {
+    global $encryptionKey;
+    $permissionsFile = USERS_DIR . 'userPermissions.json';
+    if (file_exists($permissionsFile)) {
+        $content = file_get_contents($permissionsFile);
+        $decrypted = decryptData($content, $encryptionKey);
+        $permissions = $decrypted !== false ? json_decode($decrypted, true) : json_decode($content, true);
+        if (is_array($permissions)) {
+            foreach ($permissions as $storedUsername => $data) {
+                if (strcasecmp($storedUsername, $username) === 0 && isset($data['folderOnly'])) {
+                    return (bool)$data['folderOnly'];
+                }
+            }
+        }
+    }
+    return false;
+}
+
+// Check if the user has sent HTTP Basic auth credentials.
+if (!isset($_SERVER['PHP_AUTH_USER'])) {
+    header('WWW-Authenticate: Basic realm="FileRise Login"');
+    header('HTTP/1.0 401 Unauthorized');
+    echo 'Authorization Required';
+    exit;
+}
+
+$username = trim($_SERVER['PHP_AUTH_USER']);
+$password = trim($_SERVER['PHP_AUTH_PW']);
+
+// Validate username format (optional)
+if (!preg_match('/^[A-Za-z0-9_\- ]+$/', $username)) {
+    header('WWW-Authenticate: Basic realm="FileRise Login"');
+    header('HTTP/1.0 401 Unauthorized');
+    echo 'Invalid username format';
+    exit;
+}
+
+// Attempt authentication
+$roleFromAuth = authenticate($username, $password);
+if ($roleFromAuth !== false) {
+    // --- NEW: check for TOTP secret ---
+    $secret = getUserTOTPSecret($username);
+    if ($secret) {
+        // hold user & secret in session and ask client for TOTP
+        $_SESSION['pending_login_user']   = $username;
+        $_SESSION['pending_login_secret'] = $secret;
+        header("Location: index.html?totp_required=1");
+        exit;
+    }
+
+    // no TOTP, proceed as before
+    session_regenerate_id(true);
+    $_SESSION["authenticated"] = true;
+    $_SESSION["username"]      = $username;
+    $_SESSION["isAdmin"]       = (getUserRole($username) === "1");
+    $_SESSION["folderOnly"]    = loadFolderPermission($username);
+
+    header("Location: index.html");
+    exit;
+}
+
+// Invalid credentials; prompt again
+header('WWW-Authenticate: Basic realm="FileRise Login"');
+header('HTTP/1.0 401 Unauthorized');
+echo 'Invalid credentials';
+exit;
+?>

logout.php

@@ -1,19 +1,50 @@
 <?php
-session_start();
+require_once 'config.php';
+
+// Retrieve headers and check CSRF token.
 $headers = array_change_key_case(getallheaders(), CASE_LOWER);
 $receivedToken = isset($headers['x-csrf-token']) ? trim($headers['x-csrf-token']) : '';
 
-// Fallback: If a CSRF token exists in the session and doesn't match the one provided,
-// log the mismatch but proceed with logout.
+// Log CSRF mismatch but proceed with logout.
 if (isset($_SESSION['csrf_token']) && $receivedToken !== $_SESSION['csrf_token']) {
-    // Optionally log this event:
     error_log("CSRF token mismatch on logout. Proceeding with logout.");
 }
 
-$_SESSION = []; // Clear session data
-session_destroy(); // Destroy session
+// Remove the remember_me token.
+if (isset($_COOKIE['remember_me_token'])) {
+    $token = $_COOKIE['remember_me_token'];
+    $persistentTokensFile = USERS_DIR . 'persistent_tokens.json';
+    if (file_exists($persistentTokensFile)) {
+        $encryptedContent = file_get_contents($persistentTokensFile);
+        $decryptedContent = decryptData($encryptedContent, $encryptionKey);
+        $persistentTokens = json_decode($decryptedContent, true);
+        if (is_array($persistentTokens) && isset($persistentTokens[$token])) {
+            unset($persistentTokens[$token]);
+            $newEncryptedContent = encryptData(json_encode($persistentTokens, JSON_PRETTY_PRINT), $encryptionKey);
+            file_put_contents($persistentTokensFile, $newEncryptedContent, LOCK_EX);
+        }
+    }
+    // Clear the cookie.
+    // Ensure $secure is defined; for example:
+    $secure = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off');
+    setcookie('remember_me_token', '', time() - 3600, '/', '', $secure, true);
+}
 
-header('Content-Type: application/json');
-echo json_encode(["success" => "Logged out"]);
+// Clear session data and remove session cookie.
+$_SESSION = [];
+
+// Clear the session cookie.
+if (ini_get("session.use_cookies")) {
+    $params = session_get_cookie_params();
+    setcookie(session_name(), '', time() - 42000,
+        $params["path"], $params["domain"],
+        $params["secure"], $params["httponly"]
+    );
+}
+
+// Destroy the session.
+session_destroy();
+
+header("Location: index.html?logout=1");
 exit;
 ?>

main.js

@@ -1,155 +0,0 @@
-import { sendRequest } from './networkUtils.js';
-import {
-  toggleVisibility,
-  toggleAllCheckboxes,
-  updateFileActionButtons,
-  showToast
-} from './domUtils.js';
-import {
-  loadFileList,
-  initFileActions,
-  editFile,
-  saveFile,
-  displayFilePreview,
-  renameFile
-} from './fileManager.js';
-import { loadFolderTree } from './folderManager.js';
-import { initUpload } from './upload.js';
-import { initAuth, checkAuthentication } from './auth.js';
-import { setupTrashRestoreDelete } from './trashRestoreDelete.js';
-
-function loadCsrfToken() {
-  fetch('token.php', { credentials: 'include' })
-    .then(response => response.json())
-    .then(data => {
-      // Set global variables.
-      window.csrfToken = data.csrf_token;
-      window.SHARE_URL = data.share_url;
-
-      // Update (or create) the CSRF meta tag.
-      let metaCSRF = document.querySelector('meta[name="csrf-token"]');
-      if (!metaCSRF) {
-        metaCSRF = document.createElement('meta');
-        metaCSRF.name = 'csrf-token';
-        document.head.appendChild(metaCSRF);
-      }
-      metaCSRF.setAttribute('content', data.csrf_token);
-
-      // Update (or create) the share URL meta tag.
-      let metaShare = document.querySelector('meta[name="share-url"]');
-      if (!metaShare) {
-        metaShare = document.createElement('meta');
-        metaShare.name = 'share-url';
-        document.head.appendChild(metaShare);
-      }
-      metaShare.setAttribute('content', data.share_url);
-    })
-    .catch(error => console.error("Error loading CSRF token and share URL:", error));
-}
-
-document.addEventListener("DOMContentLoaded", loadCsrfToken);
-
-// Expose functions for inline handlers.
-window.sendRequest = sendRequest;
-window.toggleVisibility = toggleVisibility;
-window.toggleAllCheckboxes = toggleAllCheckboxes;
-window.editFile = editFile;
-window.saveFile = saveFile;
-window.renameFile = renameFile;
-
-// Global variable for the current folder.
-window.currentFolder = "root";
-
-document.addEventListener("DOMContentLoaded", function () {
-  // Call initAuth synchronously.
-  initAuth();
-
-  // --- Dark Mode Persistence ---
-  const darkModeToggle = document.getElementById("darkModeToggle");
-  const storedDarkMode = localStorage.getItem("darkMode");
-
-  if (storedDarkMode === "true") {
-    document.body.classList.add("dark-mode");
-  } else if (storedDarkMode === "false") {
-    document.body.classList.remove("dark-mode");
-  } else {
-    if (window.matchMedia && window.matchMedia("(prefers-color-scheme: dark)").matches) {
-      document.body.classList.add("dark-mode");
-    } else {
-      document.body.classList.remove("dark-mode");
-    }
-  }
-
-  if (darkModeToggle) {
-    darkModeToggle.textContent = document.body.classList.contains("dark-mode")
-      ? "Light Mode"
-      : "Dark Mode";
-
-    darkModeToggle.addEventListener("click", function () {
-      if (document.body.classList.contains("dark-mode")) {
-        document.body.classList.remove("dark-mode");
-        localStorage.setItem("darkMode", "false");
-        darkModeToggle.textContent = "Dark Mode";
-      } else {
-        document.body.classList.add("dark-mode");
-        localStorage.setItem("darkMode", "true");
-        darkModeToggle.textContent = "Light Mode";
-      }
-    });
-  }
-
-  if (localStorage.getItem("darkMode") === null && window.matchMedia) {
-    window.matchMedia("(prefers-color-scheme: dark)").addEventListener("change", (event) => {
-      if (event.matches) {
-        document.body.classList.add("dark-mode");
-        if (darkModeToggle) darkModeToggle.textContent = "Light Mode";
-      } else {
-        document.body.classList.remove("dark-mode");
-        if (darkModeToggle) darkModeToggle.textContent = "Dark Mode";
-      }
-    });
-  }
-  // --- End Dark Mode Persistence ---
-
-  const message = sessionStorage.getItem("welcomeMessage");
-  if (message) {
-    showToast(message);
-    sessionStorage.removeItem("welcomeMessage");
-  }
-
-  checkAuthentication().then(authenticated => {
-    if (authenticated) {
-      window.currentFolder = "root";
-      loadFileList(window.currentFolder);
-      initFileActions();
-      initUpload();
-      loadFolderTree();
-      setupTrashRestoreDelete();
-      const helpBtn = document.getElementById("folderHelpBtn");
-      const helpTooltip = document.getElementById("folderHelpTooltip");
-      helpBtn.addEventListener("click", function () {
-        // Toggle display of the tooltip.
-        if (helpTooltip.style.display === "none" || helpTooltip.style.display === "") {
-          helpTooltip.style.display = "block";
-        } else {
-          helpTooltip.style.display = "none";
-        }
-      });
-    } else {
-      console.warn("User not authenticated. Data loading deferred.");
-    }
-  });
-
-  // --- Auto-scroll During Drag ---
-  // Adjust these values as needed:
-  const SCROLL_THRESHOLD = 50; // pixels from edge to start scrolling
-  const SCROLL_SPEED = 20;     // pixels to scroll per event
-
-  document.addEventListener("dragover", function (e) {
-    if (e.clientY < SCROLL_THRESHOLD) {
-      window.scrollBy(0, -SCROLL_SPEED);
-    } else if (e.clientY > window.innerHeight - SCROLL_THRESHOLD) {
-      window.scrollBy(0, SCROLL_SPEED);
-    }
-  });
-});

metadata/file_metadata.json

@@ -1 +0,0 @@
-[]

moveFiles.php

@@ -20,6 +20,15 @@ if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
     http_response_code(401);
     exit;
 }
+$username = $_SESSION['username'] ?? '';
+$userPermissions = loadUserPermissions($username);
+if ($username) {
+    $userPermissions = loadUserPermissions($username);
+    if (isset($userPermissions['readOnly']) && $userPermissions['readOnly'] === true) {
+        echo json_encode(["error" => "Read-only users are not allowed to move files."]);
+        exit();
+    }
+}
 
 $data = json_decode(file_get_contents("php://input"), true);
 if (

networkUtils.js

@@ -1,32 +0,0 @@
-// networkUtils.js
-export function sendRequest(url, method = "GET", data = null) {
-  console.log("Sending request to:", url, "with method:", method);
-  const options = {
-    method,
-    credentials: 'include', // include cookies in requests
-    headers: {}
-  };
-
-  // If data is provided and is not FormData, assume JSON.
-  if (data && !(data instanceof FormData)) {
-    options.headers["Content-Type"] = "application/json";
-    options.body = JSON.stringify(data);
-  } else if (data instanceof FormData) {
-    // For FormData, don't set the Content-Type header; the browser will handle it.
-    options.body = data;
-  }
-
-  return fetch(url, options)
-    .then(response => {
-      console.log("Response status:", response.status);
-      if (!response.ok) {
-        return response.text().then(text => {
-          throw new Error(`HTTP error ${response.status}: ${text}`);
-        });
-      }
-      return response.json().catch(() => {
-        console.warn("Response is not JSON, returning as text");
-        return response.text();
-      });
-    });
-}

removeChunks.php

@@ -0,0 +1,64 @@
+<?php
+require_once 'config.php';
+header('Content-Type: application/json');
+
+// Validate CSRF token from POST
+$receivedToken = isset($_POST['csrf_token']) ? trim($_POST['csrf_token']) : '';
+if ($receivedToken !== $_SESSION['csrf_token']) {
+    echo json_encode(["error" => "Invalid CSRF token"]);
+    http_response_code(403);
+    exit;
+}
+
+// Ensure a folder parameter is provided
+if (!isset($_POST['folder'])) {
+    echo json_encode(["error" => "No folder specified"]);
+    http_response_code(400);
+    exit;
+}
+
+$folder = $_POST['folder'];
+// Validate the folder name (only alphanumerics, dashes allowed)
+if (!preg_match('/^resumable_[A-Za-z0-9\-]+$/', $folder)) {
+    echo json_encode(["error" => "Invalid folder name"]);
+    http_response_code(400);
+    exit;
+}
+
+$tempDir = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR . $folder;
+
+// If the folder doesn't exist, simply return success.
+if (!is_dir($tempDir)) {
+    echo json_encode(["success" => true, "message" => "Temporary folder already removed."]);
+    exit;
+}
+
+// Recursively delete directory using RecursiveDirectoryIterator
+function rrmdir($dir) {
+    if (!is_dir($dir)) {
+        return;
+    }
+    $it = new RecursiveIteratorIterator(
+        new RecursiveDirectoryIterator($dir, FilesystemIterator::SKIP_DOTS),
+        RecursiveIteratorIterator::CHILD_FIRST
+    );
+    foreach ($it as $file) {
+        if ($file->isDir()){
+            rmdir($file->getRealPath());
+        } else {
+            unlink($file->getRealPath());
+        }
+    }
+    rmdir($dir);
+}
+
+rrmdir($tempDir);
+
+// Verify removal
+if (!is_dir($tempDir)) {
+    echo json_encode(["success" => true, "message" => "Temporary folder removed."]);
+} else {
+    echo json_encode(["error" => "Failed to remove temporary folder."]);
+    http_response_code(500);
+}
+?>

removeUser.php

@@ -1,5 +1,5 @@
 <?php
-require 'config.php';
+require_once 'config.php';
 header('Content-Type: application/json');
 
 $usersFile = USERS_DIR . USERS_FILE;
@@ -72,5 +72,17 @@ if (!$userFound) {
 
 // Write the updated list back to users.txt
 file_put_contents($usersFile, implode(PHP_EOL, $newUsers) . PHP_EOL);
+
+// Also update the userPermissions.json file
+$permissionsFile = USERS_DIR . "userPermissions.json";
+if (file_exists($permissionsFile)) {
+    $permissionsJson = file_get_contents($permissionsFile);
+    $permissionsArray = json_decode($permissionsJson, true);
+    if (is_array($permissionsArray) && isset($permissionsArray[$usernameToRemove])) {
+        unset($permissionsArray[$usernameToRemove]);
+        file_put_contents($permissionsFile, json_encode($permissionsArray, JSON_PRETTY_PRINT));
+    }
+}
+
 echo json_encode(["success" => "User removed successfully"]);
 ?>

renameFile.php

@@ -22,6 +22,16 @@ if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
     exit;
 }
 
+$username = $_SESSION['username'] ?? '';
+$userPermissions = loadUserPermissions($username);
+if ($username) {
+    $userPermissions = loadUserPermissions($username);
+    if (isset($userPermissions['readOnly']) && $userPermissions['readOnly'] === true) {
+        echo json_encode(["error" => "Read-only users are not allowed to rename files."]);
+        exit();
+    }
+}
+
 $data = json_decode(file_get_contents("php://input"), true);
 if (!$data || !isset($data['folder']) || !isset($data['oldName']) || !isset($data['newName'])) {
     echo json_encode(["error" => "Invalid input"]);

renameFolder.php

@@ -1,5 +1,5 @@
 <?php
-require 'config.php';
+require_once 'config.php';
 header('Content-Type: application/json');
 header("Cache-Control: no-cache, no-store, must-revalidate");
 header("Pragma: no-cache");
@@ -27,6 +27,15 @@ if ($receivedToken !== $_SESSION['csrf_token']) {
     http_response_code(403);
     exit;
 }
+$username = $_SESSION['username'] ?? '';
+$userPermissions = loadUserPermissions($username);
+if ($username) {
+    $userPermissions = loadUserPermissions($username);
+    if (isset($userPermissions['readOnly']) && $userPermissions['readOnly'] === true) {
+        echo json_encode(["error" => "Read-only users are not allowed to rename folders."]);
+        exit();
+    }
+}
 
 // Get the JSON input and decode it
 $input = json_decode(file_get_contents('php://input'), true);

resources/readme.md

@@ -1 +0,0 @@
-This resource folder is just to hold images of design

saveFile.php

@@ -18,6 +18,15 @@ if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
     http_response_code(401);
     exit;
 }
+$username = $_SESSION['username'] ?? '';
+$userPermissions = loadUserPermissions($username);
+if ($username) {
+    $userPermissions = loadUserPermissions($username);
+    if (isset($userPermissions['readOnly']) && $userPermissions['readOnly'] === true) {
+        echo json_encode(["error" => "Read-only users are not allowed to save files."]);
+        exit();
+    }
+}
 
 $data = json_decode(file_get_contents("php://input"), true);
 

saveFileTag.php

@@ -0,0 +1,138 @@
+<?php
+require_once 'config.php';
+header("Cache-Control: no-cache, no-store, must-revalidate");
+header("Pragma: no-cache");
+header("Expires: 0");
+header('Content-Type: application/json');
+
+// Check authentication.
+if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
+    echo json_encode(["error" => "Unauthorized"]);
+    http_response_code(401);
+    exit;
+}
+
+// CSRF Protection: validate token from header.
+$headers = getallheaders();
+if (!isset($headers['X-CSRF-Token']) || $headers['X-CSRF-Token'] !== $_SESSION['csrf_token']) {
+    echo json_encode(["error" => "Invalid CSRF token."]);
+    http_response_code(403);
+    exit;
+}
+
+// Retrieve and sanitize input.
+$data = json_decode(file_get_contents('php://input'), true);
+$file = isset($data['file']) ? trim($data['file']) : '';
+$folder = isset($data['folder']) ? trim($data['folder']) : 'root';
+$tags = isset($data['tags']) ? $data['tags'] : [];
+
+// Basic validation.
+if ($file === '') {
+    echo json_encode(["error" => "No file specified."]);
+    exit;
+}
+
+$globalTagsFile = META_DIR . "createdTags.json";
+
+// If file is "global", update the global tags only.
+if ($file === "global") {
+    if (!file_exists($globalTagsFile)) {
+        if (file_put_contents($globalTagsFile, json_encode([], JSON_PRETTY_PRINT)) === false) {
+            echo json_encode(["error" => "Failed to create global tags file."]);
+            exit;
+        }
+    }
+    $globalTags = json_decode(file_get_contents($globalTagsFile), true);
+    if (!is_array($globalTags)) {
+        $globalTags = [];
+    }
+    // If deleteGlobal flag is set and tagToDelete is provided, remove it.
+    if (isset($data['deleteGlobal']) && $data['deleteGlobal'] === true && isset($data['tagToDelete'])) {
+        $tagToDelete = strtolower($data['tagToDelete']);
+        $globalTags = array_values(array_filter($globalTags, function($globalTag) use ($tagToDelete) {
+            return strtolower($globalTag['name']) !== $tagToDelete;
+        }));
+    } else {
+        // Otherwise, merge new tags.
+        foreach ($tags as $tag) {
+            $found = false;
+            foreach ($globalTags as &$globalTag) {
+                if (strtolower($globalTag['name']) === strtolower($tag['name'])) {
+                    $globalTag['color'] = $tag['color'];
+                    $found = true;
+                    break;
+                }
+            }
+            if (!$found) {
+                $globalTags[] = $tag;
+            }
+        }
+    }
+    if (file_put_contents($globalTagsFile, json_encode($globalTags, JSON_PRETTY_PRINT)) === false) {
+        echo json_encode(["error" => "Failed to save global tags."]);
+        exit;
+    }
+    echo json_encode(["success" => "Global tags updated successfully.", "globalTags" => $globalTags]);
+    exit;
+}
+
+// Validate folder name.
+if ($folder !== 'root' && !preg_match('/^[A-Za-z0-9_\- \/]+$/', $folder)) {
+    echo json_encode(["error" => "Invalid folder name."]);
+    exit;
+}
+
+function getMetadataFilePath($folder) {
+    if (strtolower($folder) === 'root' || $folder === '') {
+        return META_DIR . "root_metadata.json";
+    }
+    return META_DIR . str_replace(['/', '\\', ' '], '-', $folder) . '_metadata.json';
+}
+
+$metadataFile = getMetadataFilePath($folder);
+$metadata = file_exists($metadataFile) ? json_decode(file_get_contents($metadataFile), true) : [];
+
+if (!isset($metadata[$file])) {
+    $metadata[$file] = [];
+}
+$metadata[$file]['tags'] = $tags;
+
+if (file_put_contents($metadataFile, json_encode($metadata, JSON_PRETTY_PRINT)) === false) {
+    echo json_encode(["error" => "Failed to save tag data."]);
+    exit;
+}
+
+// Now update the global tags file as well.
+if (!file_exists($globalTagsFile)) {
+    if (file_put_contents($globalTagsFile, json_encode([], JSON_PRETTY_PRINT)) === false) {
+        echo json_encode(["error" => "Failed to create global tags file."]);
+        exit;
+    }
+}
+
+$globalTags = json_decode(file_get_contents($globalTagsFile), true);
+if (!is_array($globalTags)) {
+    $globalTags = [];
+}
+
+foreach ($tags as $tag) {
+    $found = false;
+    foreach ($globalTags as &$globalTag) {
+        if (strtolower($globalTag['name']) === strtolower($tag['name'])) {
+            $globalTag['color'] = $tag['color'];
+            $found = true;
+            break;
+        }
+    }
+    if (!$found) {
+        $globalTags[] = $tag;
+    }
+}
+
+if (file_put_contents($globalTagsFile, json_encode($globalTags, JSON_PRETTY_PRINT)) === false) {
+    echo json_encode(["error" => "Failed to save global tags."]);
+    exit;
+}
+
+echo json_encode(["success" => "Tag data saved successfully.", "tags" => $tags, "globalTags" => $globalTags]);
+?>

share.php

@@ -1,10 +1,11 @@
 <?php
 // share.php
+
 require_once 'config.php';
 
-// Get token and password (if provided)
-$token = isset($_GET['token']) ? $_GET['token'] : '';
-$providedPass = isset($_GET['pass']) ? $_GET['pass'] : '';
+// Retrieve and sanitize input
+$token = filter_input(INPUT_GET, 'token', FILTER_SANITIZE_STRING);
+$providedPass = filter_input(INPUT_GET, 'pass', FILTER_SANITIZE_STRING);
 
 if (empty($token)) {
     http_response_code(400);
@@ -12,7 +13,7 @@ if (empty($token)) {
     exit;
 }
 
-// Load share links.
+// Load share links from file
 $shareFile = META_DIR . "share_links.json";
 if (!file_exists($shareFile)) {
     http_response_code(404);
@@ -36,18 +37,54 @@ if (time() > $record['expires']) {
     exit;
 }
 
-// If a password is required and none is provided, show a simple form.
+// If a password is required and none is provided, show a password form.
 if (!empty($record['password']) && empty($providedPass)) {
     ?>
     <!DOCTYPE html>
     <html>
     <head>
+        <meta charset="utf-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1">
         <title>Enter Password</title>
+        <style>
+            body {
+                font-family: Arial, sans-serif;
+                padding: 20px;
+                background-color: #f4f4f4;
+                color: #333;
+            }
+            form {
+                max-width: 400px;
+                margin: 40px auto;
+                background: #fff;
+                padding: 20px;
+                border-radius: 8px;
+                box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+            }
+            input[type="password"] {
+                width: 100%;
+                padding: 10px;
+                margin: 10px 0;
+                border: 1px solid #ccc;
+                border-radius: 4px;
+            }
+            button {
+                padding: 10px 20px;
+                background: #007BFF;
+                border: none;
+                border-radius: 4px;
+                color: #fff;
+                cursor: pointer;
+            }
+            button:hover {
+                background: #0056b3;
+            }
+        </style>
     </head>
-    <body style="font-family: Arial, sans-serif; padding: 20px;">
+    <body>
         <h2>This file is protected by a password.</h2>
         <form method="get" action="share.php">
-            <input type="hidden" name="token" value="<?php echo htmlspecialchars($token); ?>">
+            <input type="hidden" name="token" value="<?php echo htmlspecialchars($token, ENT_QUOTES, 'UTF-8'); ?>">
             <label for="pass">Password:</label>
             <input type="password" name="pass" id="pass" required>
             <button type="submit">Submit</button>
@@ -58,7 +95,7 @@ if (!empty($record['password']) && empty($providedPass)) {
     exit;
 }
 
-// If a password was set, validate it.
+// Validate provided password if set.
 if (!empty($record['password'])) {
     if (!password_verify($providedPass, $record['password'])) {
         http_response_code(403);
@@ -67,7 +104,7 @@ if (!empty($record['password'])) {
     }
 }
 
-// Build file path.
+// Build file path securely.
 $folder = trim($record['folder'], "/\\ ");
 $file = $record['file'];
 $filePath = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR;
@@ -76,24 +113,37 @@ if (!empty($folder) && strtolower($folder) !== 'root') {
 }
 $filePath .= $file;
 
-if (!file_exists($filePath)) {
+// Resolve the real path and ensure it's within the allowed directory.
+$realFilePath = realpath($filePath);
+$uploadDirReal = realpath(UPLOAD_DIR);
+if ($realFilePath === false || strpos($realFilePath, $uploadDirReal) !== 0) {
+    http_response_code(404);
+    echo json_encode(["error" => "File not found."]);
+    exit;
+}
+
+if (!file_exists($realFilePath)) {
     http_response_code(404);
     echo json_encode(["error" => "File not found."]);
     exit;
 }
 
 // Serve the file.
-$mimeType = mime_content_type($filePath);
+$mimeType = mime_content_type($realFilePath);
 header("Content-Type: " . $mimeType);
 
-// Determine extension and set disposition accordingly.
-$ext = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
+// Set Content-Disposition based on file type.
+$ext = strtolower(pathinfo($realFilePath, PATHINFO_EXTENSION));
 if (in_array($ext, ['jpg','jpeg','png','gif','bmp','webp','svg','ico'])) {
-    header('Content-Disposition: inline; filename="' . basename($filePath) . '"');
+    header('Content-Disposition: inline; filename="' . basename($realFilePath) . '"');
 } else {
-    header('Content-Disposition: attachment; filename="' . basename($filePath) . '"');
+    header('Content-Disposition: attachment; filename="' . basename($realFilePath) . '"');
 }
 
-readfile($filePath);
+// Optionally disable caching for sensitive files.
+header("Cache-Control: no-store, no-cache, must-revalidate");
+header("Pragma: no-cache");
+
+readfile($realFilePath);
 exit;
 ?>

shareFolder.php

@@ -0,0 +1,356 @@
+<?php
+// shareFolder.php
+
+require_once 'config.php';
+
+// Retrieve token and optional password from GET.
+$token = filter_input(INPUT_GET, 'token', FILTER_SANITIZE_STRING);
+$providedPass = filter_input(INPUT_GET, 'pass', FILTER_SANITIZE_STRING);
+$page = filter_input(INPUT_GET, 'page', FILTER_VALIDATE_INT);
+if ($page === false || $page < 1) {
+    $page = 1;
+}
+
+if (empty($token)) {
+    http_response_code(400);
+    echo json_encode(["error" => "Missing token."]);
+    exit;
+}
+
+// Load share folder records.
+$shareFile = META_DIR . "share_folder_links.json";
+if (!file_exists($shareFile)) {
+    http_response_code(404);
+    echo json_encode(["error" => "Share link not found."]);
+    exit;
+}
+
+$shareLinks = json_decode(file_get_contents($shareFile), true);
+if (!is_array($shareLinks) || !isset($shareLinks[$token])) {
+    http_response_code(404);
+    echo json_encode(["error" => "Share link not found."]);
+    exit;
+}
+
+$record = $shareLinks[$token];
+
+// Check expiration.
+if (time() > $record['expires']) {
+    http_response_code(403);
+    echo json_encode(["error" => "This link has expired."]);
+    exit;
+}
+
+// If password protection is enabled and no password is provided, show password form.
+if (!empty($record['password']) && empty($providedPass)) {
+    ?>
+    <!DOCTYPE html>
+    <html lang="en">
+    <head>
+        <meta charset="UTF-8">
+        <title>Enter Password</title>
+        <style>
+            body {
+                background-color: #f7f7f7;
+                font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                margin: 0;
+                padding: 0;
+            }
+            .container {
+                max-width: 400px;
+                margin: 80px auto;
+                background: #fff;
+                padding: 20px;
+                border-radius: 4px;
+                box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+            }
+            h2 {
+                margin-top: 0;
+                font-size: 1.5rem;
+                text-align: center;
+                color: #333;
+            }
+            label, input, button {
+                display: block;
+                width: 100%;
+            }
+            input[type="password"] {
+                padding: 10px;
+                margin: 10px 0;
+                border: 1px solid #ccc;
+                border-radius: 4px;
+            }
+            button {
+                background-color: #007BFF;
+                border: none;
+                color: #fff;
+                padding: 10px;
+                border-radius: 4px;
+                cursor: pointer;
+                font-size: 1rem;
+            }
+            button:hover {
+                background-color: #0056b3;
+            }
+        </style>
+    </head>
+    <body>
+    <div class="container">
+        <h2>Folder Protected</h2>
+        <p>This folder is protected by a password.</p>
+        <form method="get" action="shareFolder.php">
+            <input type="hidden" name="token" value="<?php echo htmlspecialchars($token, ENT_QUOTES, 'UTF-8'); ?>">
+            <label for="pass">Password:</label>
+            <input type="password" name="pass" id="pass" required>
+            <button type="submit">Submit</button>
+        </form>
+    </div>
+    </body>
+    </html>
+    <?php
+    exit;
+}
+
+// Validate the provided password if required.
+if (!empty($record['password'])) {
+    if (!password_verify($providedPass, $record['password'])) {
+        http_response_code(403);
+        echo json_encode(["error" => "Invalid password."]);
+        exit;
+    }
+}
+
+// Determine the folder path.
+$folder = trim($record['folder'], "/\\ ");
+$folderPath = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR . $folder;
+$realFolderPath = realpath($folderPath);
+$uploadDirReal = realpath(UPLOAD_DIR);
+
+// Validate that the folder exists and is within UPLOAD_DIR.
+if ($realFolderPath === false || strpos($realFolderPath, $uploadDirReal) !== 0 || !is_dir($realFolderPath)) {
+    http_response_code(404);
+    echo json_encode(["error" => "Folder not found."]);
+    exit;
+}
+
+// Scan and sort files.
+$allFiles = array_values(array_filter(scandir($realFolderPath), function($item) use ($realFolderPath) {
+    return is_file($realFolderPath . DIRECTORY_SEPARATOR . $item);
+}));
+sort($allFiles);
+
+// Pagination variables.
+$itemsPerPage = 10;
+$totalFiles = count($allFiles);
+$totalPages = max(1, ceil($totalFiles / $itemsPerPage));
+$currentPage = min($page, $totalPages);
+$startIndex = ($currentPage - 1) * $itemsPerPage;
+$filesOnPage = array_slice($allFiles, $startIndex, $itemsPerPage);
+
+/**
+ * Convert file size in bytes into a human-readable string.
+ *
+ * @param int $bytes The file size in bytes.
+ * @return string The formatted size string.
+ */
+function formatBytes($bytes) {
+    if ($bytes < 1024) {
+        return $bytes . " B";
+    } elseif ($bytes < 1024 * 1024) {
+        return round($bytes / 1024, 2) . " KB";
+    } elseif ($bytes < 1024 * 1024 * 1024) {
+        return round($bytes / (1024 * 1024), 2) . " MB";
+    } else {
+        return round($bytes / (1024 * 1024 * 1024), 2) . " GB";
+    }
+}
+?>
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Shared Folder: <?php echo htmlspecialchars($folder, ENT_QUOTES, 'UTF-8'); ?></title>
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style>
+        body {
+            background: #f2f2f2;
+            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+            margin: 0;
+            padding: 20px;
+            color: #333;
+        }
+        .header {
+            text-align: center;
+            margin-bottom: 30px;
+        }
+        .header h1 {
+            margin: 0;
+            font-size: 2rem;
+        }
+        .container {
+            max-width: 800px;
+            margin: 0 auto;
+            background: #fff;
+            border-radius: 4px;
+            padding: 20px;
+            box-shadow: 0 2px 12px rgba(0,0,0,0.1);
+        }
+        table {
+            width: 100%;
+            border-collapse: collapse;
+            margin-top: 20px;
+        }
+        th, td {
+            padding: 12px;
+            border-bottom: 1px solid #ddd;
+            text-align: left;
+        }
+        th {
+            background: #007BFF;
+            color: #fff;
+            font-weight: normal;
+        }
+        tr:hover {
+            background: #f9f9f9;
+        }
+        a {
+            color: #007BFF;
+            text-decoration: none;
+        }
+        a:hover {
+            text-decoration: underline;
+        }
+        /* Simple download icon style */
+        .download-icon {
+            margin-left: 8px;
+            font-weight: bold;
+            color: #007BFF;
+        }
+        /* Pagination styles */
+        .pagination {
+            text-align: center;
+            margin-top: 20px;
+        }
+        .pagination a, .pagination span {
+            margin: 0 5px;
+            padding: 8px 12px;
+            text-decoration: none;
+            background: #007BFF;
+            color: #fff;
+            border-radius: 4px;
+        }
+        .pagination span.current {
+            background: #0056b3;
+        }
+        .upload-container {
+            margin-top: 30px;
+            text-align: center;
+        }
+        .upload-container h3 {
+            font-size: 1.4rem;
+            margin-bottom: 10px;
+        }
+        .upload-container form {
+            display: inline-block;
+            margin-top: 10px;
+        }
+        .upload-container button {
+            background-color: #28a745;
+            border: none;
+            color: #fff;
+            padding: 10px 20px;
+            font-size: 1rem;
+            border-radius: 4px;
+            cursor: pointer;
+        }
+        .upload-container button:hover {
+            background-color: #218838;
+        }
+        .footer {
+            text-align: center;
+            margin-top: 40px;
+            font-size: 0.9rem;
+            color: #777;
+        }
+    </style>
+</head>
+<body>
+<div class="header">
+    <h1>Shared Folder: <?php echo htmlspecialchars($folder, ENT_QUOTES, 'UTF-8'); ?></h1>
+</div>
+<div class="container">
+    <?php if (empty($filesOnPage)): ?>
+        <p style="text-align:center;">This folder is empty.</p>
+    <?php else: ?>
+        <table>
+            <thead>
+                <tr>
+                    <th>Filename</th>
+                    <th>Size</th>
+                </tr>
+            </thead>
+            <tbody>
+                <?php foreach ($filesOnPage as $file):
+                    $filePath = $realFolderPath . DIRECTORY_SEPARATOR . $file;
+                    $fileSize = formatBytes(filesize($filePath));
+                    // Build download link using share token and file name.
+                    $downloadLink = "downloadSharedFile.php?token=" . urlencode($token) . "&file=" . urlencode($file);
+                    ?>
+                    <tr>
+                        <td>
+                            <a href="<?php echo htmlspecialchars($downloadLink, ENT_QUOTES, 'UTF-8'); ?>">
+                                <?php echo htmlspecialchars($file, ENT_QUOTES, 'UTF-8'); ?>
+                                <span class="download-icon">&#x21E9;</span>
+                            </a>
+                        </td>
+                        <td><?php echo $fileSize; ?></td>
+                    </tr>
+                <?php endforeach; ?>
+            </tbody>
+        </table>
+        <!-- Pagination Controls -->
+        <div class="pagination">
+            <?php if ($currentPage > 1): ?>
+                <a href="shareFolder.php?token=<?php echo urlencode($token); ?>&page=<?php echo $currentPage - 1; ?><?php echo !empty($providedPass) ? "&pass=" . urlencode($providedPass) : ""; ?>">Prev</a>
+            <?php else: ?>
+                <span>Prev</span>
+            <?php endif; ?>
+
+            <?php
+            // Display up to 5 page links centered around the current page.
+            $startPage = max(1, $currentPage - 2);
+            $endPage = min($totalPages, $currentPage + 2);
+            for ($i = $startPage; $i <= $endPage; $i++): ?>
+                <?php if ($i == $currentPage): ?>
+                    <span class="current"><?php echo $i; ?></span>
+                <?php else: ?>
+                    <a href="shareFolder.php?token=<?php echo urlencode($token); ?>&page=<?php echo $i; ?><?php echo !empty($providedPass) ? "&pass=" . urlencode($providedPass) : ""; ?>"><?php echo $i; ?></a>
+                <?php endif; ?>
+            <?php endfor; ?>
+
+            <?php if ($currentPage < $totalPages): ?>
+                <a href="shareFolder.php?token=<?php echo urlencode($token); ?>&page=<?php echo $currentPage + 1; ?><?php echo !empty($providedPass) ? "&pass=" . urlencode($providedPass) : ""; ?>">Next</a>
+            <?php else: ?>
+                <span>Next</span>
+            <?php endif; ?>
+        </div>
+    <?php endif; ?>
+
+    <?php if ($record['allowUpload']) : ?>
+        <div class="upload-container">
+            <h3>Upload File (50mb max size)</h3>
+            <form action="uploadToSharedFolder.php" method="post" enctype="multipart/form-data">
+                <!-- Passing token so the upload endpoint can verify the share link. -->
+                <input type="hidden" name="token" value="<?php echo htmlspecialchars($token, ENT_QUOTES, 'UTF-8'); ?>">
+                <input type="file" name="fileToUpload" required>
+                <br><br>
+                <button type="submit">Upload</button>
+            </form>
+        </div>
+    <?php endif; ?>
+</div>
+<div class="footer">
+    &copy; <?php echo date("Y"); ?> FileRise. All rights reserved.
+</div>
+</body>
+</html>

token.php

@@ -1,5 +1,5 @@
 <?php
-require 'config.php';
+require_once 'config.php';
 header('Content-Type: application/json');
 echo json_encode([
     "csrf_token" => $_SESSION['csrf_token'],

totp_disable.php

@@ -0,0 +1,74 @@
+<?php
+// disableTOTP.php
+
+require_once 'vendor/autoload.php';
+require_once 'config.php';
+
+if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
+    http_response_code(403);
+    echo json_encode(["error" => "Not authenticated"]);
+    exit;
+}
+
+// Verify CSRF token from request headers.
+$csrfHeader = $_SERVER['HTTP_X_CSRF_TOKEN'] ?? '';
+if (!isset($_SESSION['csrf_token']) || $csrfHeader !== $_SESSION['csrf_token']) {
+    http_response_code(403);
+    echo json_encode(["error" => "Invalid CSRF token"]);
+    exit;
+}
+
+header('Content-Type: application/json');
+
+$username = $_SESSION['username'] ?? '';
+if (empty($username)) {
+    http_response_code(400);
+    echo json_encode(["error" => "Username not found in session"]);
+    exit;
+}
+
+/**
+ * Removes the TOTP secret for the given user in users.txt.
+ *
+ * @param string $username
+ * @return bool True on success, false otherwise.
+ */
+function removeUserTOTPSecret($username) {
+    global $encryptionKey;
+    $usersFile = USERS_DIR . USERS_FILE;
+    if (!file_exists($usersFile)) {
+        return false;
+    }
+    $lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    $modified = false;
+    $newLines = [];
+    foreach ($lines as $line) {
+        $parts = explode(':', trim($line));
+        if (count($parts) < 3) {
+            $newLines[] = $line;
+            continue;
+        }
+        if ($parts[0] === $username) {
+            // Remove the TOTP secret by setting it to an empty string.
+            if (count($parts) >= 4) {
+                $parts[3] = "";
+            }
+            $modified = true;
+            $newLines[] = implode(":", $parts);
+        } else {
+            $newLines[] = $line;
+        }
+    }
+    if ($modified) {
+        file_put_contents($usersFile, implode(PHP_EOL, $newLines) . PHP_EOL, LOCK_EX);
+    }
+    return $modified;
+}
+
+if (removeUserTOTPSecret($username)) {
+    echo json_encode(["success" => true, "message" => "TOTP disabled successfully."]);
+} else {
+    http_response_code(500);
+    echo json_encode(["error" => "Failed to disable TOTP."]);
+}
+?>

totp_recover.php

@@ -0,0 +1,115 @@
+<?php
+// totp_recover.php
+
+require_once 'config.php';
+
+header('Content-Type: application/json');
+
+// ——— 1) Only POST ———
+if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+    http_response_code(405);
+    error_log("Recovery attempt with invalid method: {$_SERVER['REQUEST_METHOD']}");
+    exit(json_encode(['status'=>'error','message'=>'Method not allowed']));
+}
+
+// ——— 2) CSRF check ———
+if (empty($_SERVER['HTTP_X_CSRF_TOKEN']) 
+ || $_SERVER['HTTP_X_CSRF_TOKEN'] !== ($_SESSION['csrf_token'] ?? '')) {
+    http_response_code(403);
+    error_log("Invalid CSRF token on recovery for IP {$_SERVER['REMOTE_ADDR']}");
+    exit(json_encode(['status'=>'error','message'=>'Invalid CSRF token']));
+}
+
+// ——— 3) Identify user to recover ———
+$userId = $_SESSION['username'] 
+        ?? $_SESSION['pending_login_user'] 
+        ?? null;
+
+if (!$userId) {
+    http_response_code(401);
+    error_log("Unauthorized recovery attempt from IP {$_SERVER['REMOTE_ADDR']}");
+    exit(json_encode(['status'=>'error','message'=>'Unauthorized']));
+}
+
+// ——— Validate userId format ———
+if (!preg_match('/^[A-Za-z0-9_\-]+$/', $userId)) {
+    http_response_code(400);
+    error_log("Invalid userId format: {$userId}");
+    exit(json_encode(['status'=>'error','message'=>'Invalid user identifier']));
+}
+
+// ——— Rate‑limit recovery attempts ———
+$attemptsFile = rtrim(USERS_DIR, '/\\') . '/recovery_attempts.json';
+$attempts     = is_file($attemptsFile)
+                ? json_decode(file_get_contents($attemptsFile), true)
+                : [];
+$key = $_SERVER['REMOTE_ADDR'] . '|' . $userId;
+$now = time();
+// Prune >15 min old
+if (isset($attempts[$key])) {
+    $attempts[$key] = array_filter(
+      $attempts[$key],
+      fn($ts) => $ts > $now - 900
+    );
+}
+if (count($attempts[$key] ?? []) >= 5) {
+    http_response_code(429);
+    exit(json_encode(['status'=>'error','message'=>'Too many attempts. Try again later.']));
+}
+
+// ——— 4) Load user metadata file ———
+$userFile = rtrim(USERS_DIR, '/\\') . DIRECTORY_SEPARATOR . $userId . '.json';
+if (!file_exists($userFile)) {
+    http_response_code(404);
+    error_log("User file not found for recovery: {$userFile}");
+    exit(json_encode(['status'=>'error','message'=>'User not found']));
+}
+
+// ——— 5) Read & lock file ———
+$fp = fopen($userFile, 'c+');
+if (!$fp || !flock($fp, LOCK_EX)) {
+    http_response_code(500);
+    error_log("Failed to lock user file: {$userFile}");
+    exit(json_encode(['status'=>'error','message'=>'Server error']));
+}
+$data = json_decode(stream_get_contents($fp), true) ?: [];
+
+// ——— 6) Verify recovery code ———
+$input = json_decode(file_get_contents('php://input'), true)['recovery_code'] ?? '';
+if (!$input) {
+    flock($fp, LOCK_UN);
+    fclose($fp);
+    http_response_code(400);
+    exit(json_encode(['status'=>'error','message'=>'Recovery code required']));
+}
+
+$hash = $data['totp_recovery_code'] ?? null;
+if (!$hash || !password_verify($input, $hash)) {
+    // record failed attempt
+    $attempts[$key][] = $now;
+    file_put_contents($attemptsFile, json_encode($attempts), LOCK_EX);
+
+    flock($fp, LOCK_UN);
+    fclose($fp);
+    error_log("Invalid recovery code for user {$userId} from IP {$_SERVER['REMOTE_ADDR']}");
+    exit(json_encode(['status'=>'error','message'=>'Invalid recovery code']));
+}
+
+// ——— 7) Invalidate code & save ———
+$data['totp_recovery_code'] = null;
+rewind($fp);
+ftruncate($fp, 0);
+fwrite($fp, json_encode($data)); // no pretty-print in prod
+fflush($fp);
+flock($fp, LOCK_UN);
+fclose($fp);
+
+// ——— 8) Finalize login ———
+session_regenerate_id(true);
+$_SESSION['authenticated'] = true;
+$_SESSION['username']      = $userId;
+unset($_SESSION['pending_login_user'], $_SESSION['pending_login_secret']);
+
+// ——— 9) Success ———
+echo json_encode(['status'=>'ok']);
+exit;

totp_saveCode.php

@@ -0,0 +1,85 @@
+<?php
+// totp_saveCode.php
+
+require_once 'config.php';
+
+header('Content-Type: application/json');
+
+// 1) Only allow POST
+if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+    http_response_code(405);
+    error_log("totp_saveCode: invalid method {$_SERVER['REQUEST_METHOD']}");
+    exit(json_encode(['status'=>'error','message'=>'Method not allowed']));
+}
+
+// 2) CSRF check
+if (empty($_SERVER['HTTP_X_CSRF_TOKEN']) 
+ || $_SERVER['HTTP_X_CSRF_TOKEN'] !== ($_SESSION['csrf_token'] ?? '')) {
+    http_response_code(403);
+    error_log("totp_saveCode: invalid CSRF token from IP {$_SERVER['REMOTE_ADDR']}");
+    exit(json_encode(['status'=>'error','message'=>'Invalid CSRF token']));
+}
+
+// 3) Must be logged in
+if (empty($_SESSION['username'])) {
+    http_response_code(401);
+    error_log("totp_saveCode: unauthorized attempt from IP {$_SERVER['REMOTE_ADDR']}");
+    exit(json_encode(['status'=>'error','message'=>'Unauthorized']));
+}
+
+// 4) Validate username format
+$userId = $_SESSION['username'];
+if (!preg_match('/^[A-Za-z0-9_\-]+$/', $userId)) {
+    http_response_code(400);
+    error_log("totp_saveCode: invalid username format: {$userId}");
+    exit(json_encode(['status'=>'error','message'=>'Invalid user identifier']));
+}
+
+// 5) Ensure user file exists (create if missing)
+$userFile = rtrim(USERS_DIR, '/\\') . DIRECTORY_SEPARATOR . $userId . '.json';
+if (!file_exists($userFile)) {
+    $defaultData = [];
+    if (file_put_contents($userFile, json_encode($defaultData)) === false) {
+        http_response_code(500);
+        error_log("totp_saveCode: failed to create user file: {$userFile}");
+        exit(json_encode(['status'=>'error','message'=>'Server error']));
+    }
+}
+
+// 6) Generate secure recovery code
+function generateRecoveryCode($length = 12) {
+    $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
+    $max   = strlen($chars) - 1;
+    $code  = '';
+    for ($i = 0; $i < $length; $i++) {
+        $code .= $chars[random_int(0, $max)];
+    }
+    return $code;
+}
+$recoveryCode = generateRecoveryCode();
+$recoveryHash = password_hash($recoveryCode, PASSWORD_DEFAULT);
+
+// 7) Read, lock, update user file
+$fp = fopen($userFile, 'c+');
+if (!$fp || !flock($fp, LOCK_EX)) {
+    http_response_code(500);
+    error_log("totp_saveCode: failed to lock user file: {$userFile}");
+    exit(json_encode(['status'=>'error','message'=>'Server error']));
+}
+
+$data = json_decode(stream_get_contents($fp), true) ?: [];
+$data['totp_recovery_code'] = $recoveryHash;
+
+rewind($fp);
+ftruncate($fp, 0);
+fwrite($fp, json_encode($data)); // no pretty-print in prod
+fflush($fp);
+flock($fp, LOCK_UN);
+fclose($fp);
+
+// 8) Return one-time recovery code
+echo json_encode([
+    'status'       => 'ok',
+    'recoveryCode' => $recoveryCode
+]);
+exit;

totp_setup.php

@@ -0,0 +1,148 @@
+<?php
+// totp_setup.php
+
+require_once 'vendor/autoload.php';
+require_once 'config.php';
+
+use Endroid\QrCode\Builder\Builder;
+use Endroid\QrCode\Writer\PngWriter;
+use Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelHigh;
+
+// For debugging purposes, you might enable error reporting temporarily:
+// ini_set('display_errors', 1);
+// error_reporting(E_ALL);
+
+if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
+    http_response_code(403);
+    exit;
+}
+
+// Verify CSRF token provided as a GET parameter.
+if (!isset($_GET['csrf']) || $_GET['csrf'] !== $_SESSION['csrf_token']) {
+    http_response_code(403);
+    exit;
+}
+
+$username = $_SESSION['username'] ?? '';
+if (!$username) {
+    http_response_code(400);
+    exit;
+}
+
+// Set header to output a PNG image.
+header("Content-Type: image/png");
+
+// Define the path to your users.txt file.
+$usersFile = USERS_DIR . USERS_FILE;
+
+/**
+ * Updates the TOTP secret for the given user in users.txt.
+ *
+ * @param string $username
+ * @param string $encryptedSecret The encrypted TOTP secret.
+ */
+function updateUserTOTPSecret($username, $encryptedSecret) {
+    global $usersFile;
+    $lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    $newLines = [];
+    foreach ($lines as $line) {
+        $parts = explode(':', trim($line));
+        if (count($parts) < 3) {
+            $newLines[] = $line;
+            continue;
+        }
+        if ($parts[0] === $username) {
+            // If a fourth field exists, update it; otherwise, append it.
+            if (count($parts) >= 4) {
+                $parts[3] = $encryptedSecret;
+            } else {
+                $parts[] = $encryptedSecret;
+            }
+            $newLines[] = implode(':', $parts);
+        } else {
+            $newLines[] = $line;
+        }
+    }
+    file_put_contents($usersFile, implode(PHP_EOL, $newLines) . PHP_EOL, LOCK_EX);
+}
+
+/**
+ * Retrieves the current user's TOTP secret from users.txt (if present).
+ *
+ * @param string $username
+ * @return string|null The decrypted TOTP secret or null if not found.
+ */
+function getUserTOTPSecret($username) {
+    global $usersFile, $encryptionKey;
+    if (!file_exists($usersFile)) {
+        return null;
+    }
+    $lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    foreach ($lines as $line) {
+        $parts = explode(':', trim($line));
+        if (count($parts) >= 4 && $parts[0] === $username && !empty($parts[3])) {
+            return decryptData($parts[3], $encryptionKey);
+        }
+    }
+    return null;
+}
+
+/**
+ * Retrieves the global OTPAuth URL from admin configuration.
+ *
+ * @return string Global OTPAuth URL template or an empty string if not set.
+ */
+function getGlobalOtpauthUrl() {
+    global $encryptionKey;
+    $adminConfigFile = USERS_DIR . 'adminConfig.json';
+    if (file_exists($adminConfigFile)) {
+        $encryptedContent = file_get_contents($adminConfigFile);
+        $decryptedContent = decryptData($encryptedContent, $encryptionKey);
+        if ($decryptedContent !== false) {
+            $config = json_decode($decryptedContent, true);
+            if (isset($config['globalOtpauthUrl']) && !empty($config['globalOtpauthUrl'])) {
+                return $config['globalOtpauthUrl'];
+            }
+        }
+    }
+    return "";
+}
+
+$tfa = new \RobThree\Auth\TwoFactorAuth('FileRise');
+
+// Retrieve the current TOTP secret for the user.
+$totpSecret = getUserTOTPSecret($username);
+if (!$totpSecret) {
+    // If no TOTP secret exists, generate a new one.
+    $totpSecret = $tfa->createSecret();
+    $encryptedSecret = encryptData($totpSecret, $encryptionKey);
+    updateUserTOTPSecret($username, $encryptedSecret);
+}
+
+// Determine the otpauth URL to use.
+// If a global OTPAuth URL template is defined, replace placeholders {label} and {secret}.
+// Otherwise, use the default method.
+$globalOtpauthUrl = getGlobalOtpauthUrl();
+if (!empty($globalOtpauthUrl)) {
+    $label = "FileRise:" . $username;
+    $otpauthUrl = str_replace(
+        ["{label}", "{secret}"],
+        [urlencode($label), $totpSecret],
+        $globalOtpauthUrl
+    );
+} else {
+    $label = urlencode("FileRise:" . $username);
+    $issuer = urlencode("FileRise");
+    $otpauthUrl = "otpauth://totp/{$label}?secret={$totpSecret}&issuer={$issuer}";
+}
+
+// Build the QR code using Endroid QR Code.
+$result = Builder::create()
+    ->writer(new PngWriter())
+    ->data($otpauthUrl)
+    ->errorCorrectionLevel(new ErrorCorrectionLevelHigh())
+    ->build();
+
+header('Content-Type: ' . $result->getMimeType());
+echo $result->getString();
+?>

totp_verify.php

@@ -0,0 +1,140 @@
+<?php
+// totp_verify.php
+
+require_once 'vendor/autoload.php';
+require_once 'config.php';
+
+// JSON + CSP
+header('Content-Type: application/json');
+header("Content-Security-Policy: default-src 'self'; script-src 'self'; style-src 'self';");
+
+try {
+    // standardized error helper
+    function respond($status, $code, $message, $data = []) {
+        http_response_code($code);
+        echo json_encode([
+            'status'  => $status,
+            'code'    => $code,
+            'message' => $message,
+            'data'    => $data
+        ]);
+        exit;
+    }
+
+    // Rate‑limit TOTP attempts
+    if (!isset($_SESSION['totp_failures'])) {
+        $_SESSION['totp_failures'] = 0;
+    }
+    if ($_SESSION['totp_failures'] >= 5) {
+        respond('error', 429, 'Too many TOTP attempts. Please try again later.');
+    }
+
+    /**
+     * Helper: Get a user's role from users.txt
+     */
+    function getUserRole(string $username): ?string {
+        $usersFile = USERS_DIR . USERS_FILE;
+        if (!file_exists($usersFile)) return null;
+        foreach (file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) as $line) {
+            $parts = explode(':', trim($line));
+            if (count($parts) >= 3 && $parts[0] === $username) {
+                return trim($parts[2]);
+            }
+        }
+        return null;
+    }
+
+    // Must be authenticated or pending TOTP
+    if (
+        !(
+            (isset($_SESSION['authenticated']) && $_SESSION['authenticated'] === true)
+            || isset($_SESSION['pending_login_user'])
+        )
+    ) {
+        respond('error', 403, 'Not authenticated');
+    }
+
+    // CSRF check
+    $csrfHeader = $_SERVER['HTTP_X_CSRF_TOKEN'] ?? '';
+    if (!isset($_SESSION['csrf_token']) || $csrfHeader !== $_SESSION['csrf_token']) {
+        respond('error', 403, 'Invalid CSRF token');
+    }
+
+    // Parse & validate input
+    $input = json_decode(file_get_contents("php://input"), true);
+    $code  = trim($input['totp_code'] ?? '');
+    if (!preg_match('/^\d{6}$/', $code)) {
+        respond('error', 400, 'A valid 6-digit TOTP code is required');
+    }
+
+    // LOGIN flow (Basic‑Auth or OIDC)
+    if (isset($_SESSION['pending_login_user'])) {
+        $username   = $_SESSION['pending_login_user'];
+        $totpSecret = $_SESSION['pending_login_secret'];
+        $tfa        = new \RobThree\Auth\TwoFactorAuth('FileRise');
+
+        if (!$tfa->verifyCode($totpSecret, $code)) {
+            $_SESSION['totp_failures']++;
+            respond('error', 400, 'Invalid TOTP code');
+        }
+
+        // success → complete login
+        session_regenerate_id(true);
+        $_SESSION['authenticated'] = true;
+        $_SESSION['username']      = $username;
+        $_SESSION['isAdmin']       = (getUserRole($username) === "1");
+        $_SESSION['folderOnly']    = loadUserPermissions($username);
+
+        unset($_SESSION['pending_login_user'], $_SESSION['pending_login_secret'], $_SESSION['totp_failures']);
+
+        respond('ok', 200, 'Login successful');
+    }
+
+    // SETUP‑VERIFICATION flow
+    $username = $_SESSION['username'] ?? '';
+    if (!$username) {
+        respond('error', 400, 'Username not found in session');
+    }
+
+    /**
+     * Helper: retrieve the user's TOTP secret from users.txt
+     */
+    function getUserTOTPSecret(string $username): ?string {
+        global $encryptionKey;
+        $usersFile = USERS_DIR . USERS_FILE;
+        if (!file_exists($usersFile)) return null;
+        foreach (file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) as $line) {
+            $parts = explode(':', trim($line));
+            if (count($parts) >= 4 && $parts[0] === $username && !empty($parts[3])) {
+                return decryptData($parts[3], $encryptionKey);
+            }
+        }
+        return null;
+    }
+
+    $totpSecret = getUserTOTPSecret($username);
+    if (!$totpSecret) {
+        respond('error', 500, 'TOTP secret not found. Please set up TOTP again.');
+    }
+
+    $tfa = new \RobThree\Auth\TwoFactorAuth('FileRise');
+    if (!$tfa->verifyCode($totpSecret, $code)) {
+        $_SESSION['totp_failures']++;
+        respond('error', 400, 'Invalid TOTP code');
+    }
+
+    // success
+    unset($_SESSION['totp_failures']);
+    respond('ok', 200, 'TOTP successfully verified');
+
+} catch (\Throwable $e) {
+    // log error internally, then generic response
+    error_log("totp_verify error: " . $e->getMessage());
+    http_response_code(500);
+    echo json_encode([
+        'status'  => 'error',
+        'code'    => 500,
+        'message' => 'Internal server error'
+    ]);
+    exit;
+}

updateConfig.php

@@ -0,0 +1,100 @@
+<?php
+require_once 'config.php';
+header('Content-Type: application/json');
+
+// Verify that the user is authenticated and is an admin.
+if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true || 
+    !isset($_SESSION['isAdmin']) || !$_SESSION['isAdmin']) {
+    http_response_code(403);
+    echo json_encode(['error' => 'Unauthorized access.']);
+    exit;
+}
+
+// Validate CSRF token.
+$receivedToken = '';
+if (isset($_SERVER['HTTP_X_CSRF_TOKEN'])) {
+    $receivedToken = trim($_SERVER['HTTP_X_CSRF_TOKEN']);
+} else {
+    $headers = array_change_key_case(getallheaders(), CASE_LOWER);
+    $receivedToken = isset($headers['x-csrf-token']) ? trim($headers['x-csrf-token']) : '';
+}
+if (!isset($_SESSION['csrf_token']) || $receivedToken !== $_SESSION['csrf_token']) {
+    http_response_code(403);
+    echo json_encode(['error' => 'Invalid CSRF token.']);
+    exit;
+}
+
+// Retrieve and decode JSON input.
+$input = file_get_contents('php://input');
+$data = json_decode($input, true);
+if (!is_array($data)) {
+    http_response_code(400);
+    echo json_encode(['error' => 'Invalid input.']);
+    exit;
+}
+
+// Validate and sanitize OIDC configuration.
+$oidc = isset($data['oidc']) ? $data['oidc'] : [];
+$oidcProviderUrl = isset($oidc['providerUrl']) ? filter_var($oidc['providerUrl'], FILTER_SANITIZE_URL) : '';
+$oidcClientId    = isset($oidc['clientId']) ? trim($oidc['clientId']) : '';
+$oidcClientSecret = isset($oidc['clientSecret']) ? trim($oidc['clientSecret']) : '';
+$oidcRedirectUri = isset($oidc['redirectUri']) ? filter_var($oidc['redirectUri'], FILTER_SANITIZE_URL) : '';
+
+if (!$oidcProviderUrl || !$oidcClientId || !$oidcClientSecret || !$oidcRedirectUri) {
+    http_response_code(400);
+    echo json_encode(['error' => 'Incomplete OIDC configuration.']);
+    exit;
+}
+
+// Validate login option booleans.
+$disableFormLogin = isset($data['disableFormLogin']) ? filter_var($data['disableFormLogin'], FILTER_VALIDATE_BOOLEAN) : false;
+$disableBasicAuth = isset($data['disableBasicAuth']) ? filter_var($data['disableBasicAuth'], FILTER_VALIDATE_BOOLEAN) : false;
+$disableOIDCLogin = isset($data['disableOIDCLogin']) ? filter_var($data['disableOIDCLogin'], FILTER_VALIDATE_BOOLEAN) : false;
+
+// Retrieve the global OTPAuth URL (new field). If not provided, default to an empty string.
+$globalOtpauthUrl = isset($data['globalOtpauthUrl']) ? trim($data['globalOtpauthUrl']) : "";
+
+// Prepare configuration array.
+$configUpdate = [
+    'oidc' => [
+        'providerUrl'  => $oidcProviderUrl,
+        'clientId'     => $oidcClientId,
+        'clientSecret' => $oidcClientSecret,
+        'redirectUri'  => $oidcRedirectUri,
+    ],
+    'loginOptions' => [
+        'disableFormLogin' => $disableFormLogin,
+        'disableBasicAuth' => $disableBasicAuth,
+        'disableOIDCLogin' => $disableOIDCLogin,
+    ],
+    'globalOtpauthUrl' => $globalOtpauthUrl
+];
+
+// Define the configuration file path.
+$configFile = USERS_DIR . 'adminConfig.json';
+
+// Convert and encrypt configuration.
+$plainTextConfig = json_encode($configUpdate, JSON_PRETTY_PRINT);
+$encryptedContent = encryptData($plainTextConfig, $encryptionKey);
+
+// Attempt to write the new configuration.
+if (file_put_contents($configFile, $encryptedContent, LOCK_EX) === false) {
+    // Log the error.
+    error_log("updateConfig.php: Initial write failed, attempting to delete the old configuration file.");
+    
+    // Delete the old file.
+    if (file_exists($configFile)) {
+        unlink($configFile);
+    }
+    
+    // Try writing again.
+    if (file_put_contents($configFile, $encryptedContent, LOCK_EX) === false) {
+        error_log("updateConfig.php: Failed to write configuration even after deletion.");
+        http_response_code(500);
+        echo json_encode(['error' => 'Failed to update configuration even after cleanup.']);
+        exit;
+    }
+}
+
+echo json_encode(['success' => 'Configuration updated successfully.']);
+?>

updateUserPanel.php

@@ -0,0 +1,80 @@
+<?php
+// updateUserPanel.php
+require_once 'config.php';
+header('Content-Type: application/json');
+
+// Ensure the user is authenticated.
+if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
+    http_response_code(403);
+    echo json_encode(["error" => "Unauthorized"]);
+    exit;
+}
+
+// Verify the CSRF token from headers.
+$headers = array_change_key_case(getallheaders(), CASE_LOWER);
+$csrfToken = isset($headers['x-csrf-token']) ? trim($headers['x-csrf-token']) : '';
+if (!isset($_SESSION['csrf_token']) || $csrfToken !== $_SESSION['csrf_token']) {
+    http_response_code(403);
+    echo json_encode(["error" => "Invalid CSRF token"]);
+    exit;
+}
+
+$data = json_decode(file_get_contents("php://input"), true);
+if (!is_array($data)) {
+    http_response_code(400);
+    echo json_encode(["error" => "Invalid input"]);
+    exit;
+}
+
+$username = $_SESSION['username'] ?? '';
+if (!$username) {
+    http_response_code(400);
+    echo json_encode(["error" => "No username in session"]);
+    exit;
+}
+
+$totp_enabled = isset($data['totp_enabled']) ? filter_var($data['totp_enabled'], FILTER_VALIDATE_BOOLEAN) : false;
+$usersFile = USERS_DIR . USERS_FILE;
+
+/**
+ * Clears the TOTP secret for a given user by removing or emptying the fourth field.
+ *
+ * @param string $username
+ */
+function disableUserTOTP($username) {
+    global $usersFile;
+    $lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    $newLines = [];
+    foreach ($lines as $line) {
+        $parts = explode(':', trim($line));
+        // If the line doesn't have at least three parts, leave it alone.
+        if (count($parts) < 3) {
+            $newLines[] = $line;
+            continue;
+        }
+        if ($parts[0] === $username) {
+            // If a fourth field exists, clear it; otherwise, append an empty field.
+            if (count($parts) >= 4) {
+                $parts[3] = "";
+            } else {
+                $parts[] = "";
+            }
+            $newLines[] = implode(':', $parts);
+        } else {
+            $newLines[] = $line;
+        }
+    }
+    file_put_contents($usersFile, implode(PHP_EOL, $newLines) . PHP_EOL, LOCK_EX);
+}
+
+// If TOTP is disabled, clear the user's TOTP secret.
+if (!$totp_enabled) {
+    disableUserTOTP($username);
+    echo json_encode(["success" => "User panel updated: TOTP disabled"]);
+    exit;
+} else {
+    // If TOTP is enabled, do not change the stored secret.
+    echo json_encode(["success" => "User panel updated: TOTP remains enabled"]);
+    exit;
+}
+?>

updateUserPermissions.php

@@ -0,0 +1,71 @@
+<?php
+require_once 'config.php';
+header('Content-Type: application/json');
+
+// Only admins should update user permissions.
+if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true ||
+    !isset($_SESSION['isAdmin']) || $_SESSION['isAdmin'] !== true) {
+    echo json_encode(["error" => "Unauthorized"]);
+    exit;
+}
+
+// Verify the CSRF token from headers.
+$headers = array_change_key_case(getallheaders(), CASE_LOWER);
+$csrfToken = isset($headers['x-csrf-token']) ? trim($headers['x-csrf-token']) : '';
+if (!isset($_SESSION['csrf_token']) || $csrfToken !== $_SESSION['csrf_token']) {
+    http_response_code(403);
+    echo json_encode(["error" => "Invalid CSRF token"]);
+    exit;
+}
+
+// Read the POST input.
+$input = json_decode(file_get_contents("php://input"), true);
+if (!isset($input['permissions']) || !is_array($input['permissions'])) {
+    echo json_encode(["error" => "Invalid input"]);
+    exit;
+}
+
+$permissions = $input['permissions'];
+$permissionsFile = USERS_DIR . "userPermissions.json";
+
+// Load existing permissions if available and decrypt.
+if (file_exists($permissionsFile)) {
+    $encryptedContent = file_get_contents($permissionsFile);
+    $json = decryptData($encryptedContent, $encryptionKey);
+    $existingPermissions = json_decode($json, true);
+    if (!is_array($existingPermissions)) {
+        $existingPermissions = [];
+    }
+} else {
+    $existingPermissions = [];
+}
+
+// Loop through each permission update.
+foreach ($permissions as $perm) {
+    // Ensure username is provided.
+    if (!isset($perm['username'])) continue;
+    $username = $perm['username'];
+    // Skip updating permissions for admin users.
+    if (strtolower($username) === "admin") continue;
+    
+    // Update permissions: default any missing value to false.
+    $existingPermissions[$username] = [
+        'folderOnly'    => isset($perm['folderOnly']) ? (bool)$perm['folderOnly'] : false,
+        'readOnly'      => isset($perm['readOnly']) ? (bool)$perm['readOnly'] : false,
+        'disableUpload' => isset($perm['disableUpload']) ? (bool)$perm['disableUpload'] : false
+    ];
+}
+
+// Convert the permissions array to JSON.
+$plainText = json_encode($existingPermissions, JSON_PRETTY_PRINT);
+// Encrypt the JSON data.
+$encryptedData = encryptData($plainText, $encryptionKey);
+// Save encrypted permissions back to the JSON file.
+$result = file_put_contents($permissionsFile, $encryptedData);
+if ($result === false) {
+    echo json_encode(["error" => "Failed to save user permissions."]);
+    exit;
+}
+
+echo json_encode(["success" => "User permissions updated successfully."]);
+?>

upload.js

@@ -1,485 +0,0 @@
-import { loadFileList, displayFilePreview, initFileActions } from './fileManager.js';
-import { showToast, escapeHTML } from './domUtils.js';
-import { loadFolderTree } from './folderManager.js';
-
-// Helper: Recursively traverse a dropped folder.
-function traverseFileTreePromise(item, path = "") {
-  return new Promise((resolve, reject) => {
-    if (item.isFile) {
-      item.file(file => {
-        Object.defineProperty(file, 'customRelativePath', {
-          value: path + file.name,
-          writable: true,
-          configurable: true
-        });
-        resolve([file]);
-      });
-    } else if (item.isDirectory) {
-      const dirReader = item.createReader();
-      dirReader.readEntries(entries => {
-        const promises = [];
-        for (let i = 0; i < entries.length; i++) {
-          promises.push(traverseFileTreePromise(entries[i], path + item.name + "/"));
-        }
-        Promise.all(promises).then(results => resolve(results.flat()));
-      });
-    } else {
-      resolve([]);
-    }
-  });
-}
-
-// Helper: Given DataTransfer items, recursively retrieve files.
-function getFilesFromDataTransferItems(items) {
-  const promises = [];
-  for (let i = 0; i < items.length; i++) {
-    const entry = items[i].webkitGetAsEntry();
-    if (entry) {
-      promises.push(traverseFileTreePromise(entry));
-    }
-  }
-  return Promise.all(promises).then(results => results.flat());
-}
-
-// Helper: Set default drop area content.
-function setDropAreaDefault() {
-  const dropArea = document.getElementById("uploadDropArea");
-  if (dropArea) {
-    dropArea.innerHTML = `
-          <div id="uploadInstruction" class="upload-instruction">
-            Drop files/folders here or click 'Choose files'
-          </div>
-          <div id="uploadFileRow" class="upload-file-row">
-            <button id="customChooseBtn" type="button">
-              Choose files
-            </button>
-          </div>
-          <div id="fileInfoWrapper" class="file-info-wrapper">
-            <div id="fileInfoContainer" class="file-info-container">
-              <span id="fileInfoDefault">No files selected</span>
-            </div>
-          </div>
-        `;
-  }
-}
-
-function adjustFolderHelpExpansion() {
-  const uploadCard = document.getElementById("uploadCard");
-  const folderHelpDetails = document.querySelector(".folder-help-details");
-  if (uploadCard && folderHelpDetails) {
-    if (uploadCard.offsetHeight > 400) {
-      folderHelpDetails.setAttribute("open", "");
-    } else {
-      folderHelpDetails.removeAttribute("open");
-    }
-  }
-}
-
-function adjustFolderHelpExpansionClosed() {
-  const folderHelpDetails = document.querySelector(".folder-help-details");
-  if (folderHelpDetails) {
-    folderHelpDetails.removeAttribute("open");
-  }
-}
-
-// Helper: Update file info container count/preview.
-function updateFileInfoCount() {
-  const fileInfoContainer = document.getElementById("fileInfoContainer");
-  if (fileInfoContainer && window.selectedFiles) {
-    if (window.selectedFiles.length === 0) {
-      fileInfoContainer.innerHTML = `<span id="fileInfoDefault">No files selected</span>`;
-    } else if (window.selectedFiles.length === 1) {
-      fileInfoContainer.innerHTML = `
-        <div id="filePreviewContainer" class="file-preview-container" style="display:inline-block;"></div>
-        <span id="fileNameDisplay" class="file-name-display">${escapeHTML(window.selectedFiles[0].name)}</span>
-      `;
-    } else {
-      fileInfoContainer.innerHTML = `
-        <div id="filePreviewContainer" class="file-preview-container" style="display:inline-block;"></div>
-        <span id="fileCountDisplay" class="file-name-display">${window.selectedFiles.length} files selected</span>
-      `;
-    }
-    const previewContainer = document.getElementById("filePreviewContainer");
-    if (previewContainer && window.selectedFiles.length > 0) {
-      previewContainer.innerHTML = "";
-      displayFilePreview(window.selectedFiles[0], previewContainer);
-    }
-  }
-}
-
-// Helper: Create a file entry element with a remove button.
-function createFileEntry(file) {
-  const li = document.createElement("li");
-  li.classList.add("upload-progress-item");
-  li.style.display = "flex";
-  li.dataset.uploadIndex = file.uploadIndex;
-
-  const removeBtn = document.createElement("button");
-  removeBtn.classList.add("remove-file-btn");
-  removeBtn.textContent = "×";
-  removeBtn.addEventListener("click", function (e) {
-    e.stopPropagation();
-    const uploadIndex = file.uploadIndex;
-    window.selectedFiles = window.selectedFiles.filter(f => f.uploadIndex !== uploadIndex);
-    li.remove();
-    updateFileInfoCount();
-  });
-  li.removeBtn = removeBtn;
-
-  const preview = document.createElement("div");
-  preview.className = "file-preview";
-  displayFilePreview(file, preview);
-
-  const nameDiv = document.createElement("div");
-  nameDiv.classList.add("upload-file-name");
-  nameDiv.textContent = file.name;
-
-  const progDiv = document.createElement("div");
-  progDiv.classList.add("progress", "upload-progress-div");
-  progDiv.style.flex = "0 0 250px";
-  progDiv.style.marginLeft = "5px";
-
-  const progBar = document.createElement("div");
-  progBar.classList.add("progress-bar");
-  progBar.style.width = "0%";
-  progBar.innerText = "0%";
-
-  progDiv.appendChild(progBar);
-  li.appendChild(removeBtn);
-  li.appendChild(preview);
-  li.appendChild(nameDiv);
-  li.appendChild(progDiv);
-
-  li.progressBar = progBar;
-  li.startTime = Date.now();
-  return li;
-}
-
-// Process selected files: Build preview/progress list and store files for later submission.
-function processFiles(filesInput) {
-  const fileInfoContainer = document.getElementById("fileInfoContainer");
-  const files = Array.from(filesInput);
-
-  if (fileInfoContainer) {
-    if (files.length > 0) {
-      if (files.length === 1) {
-        fileInfoContainer.innerHTML = `
-          <div id="filePreviewContainer" class="file-preview-container" style="display:inline-block;"></div>
-          <span id="fileNameDisplay" class="file-name-display">${escapeHTML(files[0].name)}</span>
-        `;
-      } else {
-        fileInfoContainer.innerHTML = `
-          <div id="filePreviewContainer" class="file-preview-container" style="display:inline-block;"></div>
-          <span id="fileCountDisplay" class="file-name-display">${files.length} files selected</span>
-        `;
-      }
-      const previewContainer = document.getElementById("filePreviewContainer");
-      if (previewContainer) {
-        previewContainer.innerHTML = "";
-        displayFilePreview(files[0], previewContainer);
-      }
-    } else {
-      fileInfoContainer.innerHTML = `<span id="fileInfoDefault">No files selected</span>`;
-    }
-  }
-
-  files.forEach((file, index) => {
-    file.uploadIndex = index;
-  });
-
-  const progressContainer = document.getElementById("uploadProgressContainer");
-  progressContainer.innerHTML = "";
-
-  if (files.length > 0) {
-    const maxDisplay = 10;
-    const list = document.createElement("ul");
-    list.classList.add("upload-progress-list");
-
-    const hasRelativePaths = files.some(file => {
-      const rel = file.webkitRelativePath || file.customRelativePath || "";
-      return rel.trim() !== "";
-    });
-
-    if (hasRelativePaths) {
-      const fileGroups = {};
-      files.forEach(file => {
-        let folderName = "Root";
-        const relativePath = file.webkitRelativePath || file.customRelativePath || "";
-        if (relativePath.trim() !== "") {
-          const parts = relativePath.split("/");
-          if (parts.length > 1) {
-            folderName = parts.slice(0, parts.length - 1).join("/");
-          }
-        }
-        if (!fileGroups[folderName]) {
-          fileGroups[folderName] = [];
-        }
-        fileGroups[folderName].push(file);
-      });
-
-      Object.keys(fileGroups).forEach(folderName => {
-        const folderLi = document.createElement("li");
-        folderLi.classList.add("upload-folder-group");
-        folderLi.innerHTML = `<i class="material-icons folder-icon" style="vertical-align:middle; margin-right:8px;">folder</i> ${folderName}:`;
-        list.appendChild(folderLi);
-
-        const nestedUl = document.createElement("ul");
-        nestedUl.classList.add("upload-folder-group-list");
-        fileGroups[folderName]
-          .sort((a, b) => a.uploadIndex - b.uploadIndex)
-          .forEach(file => {
-            const li = createFileEntry(file);
-            nestedUl.appendChild(li);
-          });
-        list.appendChild(nestedUl);
-      });
-    } else {
-      files.forEach((file, index) => {
-        const li = createFileEntry(file);
-        li.style.display = (index < maxDisplay) ? "flex" : "none";
-        li.dataset.uploadIndex = index;
-        list.appendChild(li);
-      });
-      if (files.length > maxDisplay) {
-        const extra = document.createElement("li");
-        extra.classList.add("upload-progress-extra");
-        extra.textContent = `Uploading additional ${files.length - maxDisplay} file(s)...`;
-        extra.style.display = "flex";
-        list.appendChild(extra);
-      }
-    }
-    const listWrapper = document.createElement("div");
-    listWrapper.classList.add("upload-progress-wrapper");
-    listWrapper.style.maxHeight = "300px";
-    listWrapper.style.overflowY = "auto";
-    listWrapper.appendChild(list);
-    progressContainer.appendChild(listWrapper);
-  }
-
-  adjustFolderHelpExpansion();
-  window.addEventListener("resize", adjustFolderHelpExpansion);
-
-  window.selectedFiles = files;
-  updateFileInfoCount();
-}
-
-// Function to handle file uploads; triggered when the user clicks the "Upload" button.
-function submitFiles(allFiles) {
-  const folderToUse = window.currentFolder || "root";
-  const progressContainer = document.getElementById("uploadProgressContainer");
-  const fileInput = document.getElementById("file");
-
-  const progressElements = {};
-  const listItems = progressContainer.querySelectorAll("li.upload-progress-item");
-  listItems.forEach(item => {
-    progressElements[item.dataset.uploadIndex] = item;
-  });
-
-  let finishedCount = 0;
-  let allSucceeded = true;
-  const uploadResults = new Array(allFiles.length).fill(false);
-
-  allFiles.forEach(file => {
-    const formData = new FormData();
-    formData.append("file[]", file);
-    formData.append("folder", folderToUse);
-    // Append CSRF token as "upload_token"
-    formData.append("upload_token", window.csrfToken);
-    const relativePath = file.webkitRelativePath || file.customRelativePath || "";
-    if (relativePath.trim() !== "") {
-      formData.append("relativePath", relativePath);
-    }
-    const xhr = new XMLHttpRequest();
-    let currentPercent = 0;
-
-    xhr.upload.addEventListener("progress", function (e) {
-      if (e.lengthComputable) {
-        currentPercent = Math.round((e.loaded / e.total) * 100);
-        const li = progressElements[file.uploadIndex];
-        if (li) {
-          const elapsed = (Date.now() - li.startTime) / 1000;
-          let speed = "";
-          if (elapsed > 0) {
-            const spd = e.loaded / elapsed;
-            if (spd < 1024) speed = spd.toFixed(0) + " B/s";
-            else if (spd < 1048576) speed = (spd / 1024).toFixed(1) + " KB/s";
-            else speed = (spd / 1048576).toFixed(1) + " MB/s";
-          }
-          li.progressBar.style.width = currentPercent + "%";
-          li.progressBar.innerText = currentPercent + "% (" + speed + ")";
-        }
-      }
-    });
-
-    xhr.addEventListener("load", function () {
-      let jsonResponse;
-      try {
-        jsonResponse = JSON.parse(xhr.responseText);
-      } catch (e) {
-        jsonResponse = null;
-      }
-      const li = progressElements[file.uploadIndex];
-      if (xhr.status >= 200 && xhr.status < 300 && (!jsonResponse || !jsonResponse.error)) {
-        if (li) {
-          li.progressBar.style.width = "100%";
-          li.progressBar.innerText = "Done";
-          if (li.removeBtn) {
-            li.removeBtn.style.display = "none";
-          }
-        }
-        uploadResults[file.uploadIndex] = true;
-      } else {
-        if (li) {
-          li.progressBar.innerText = "Error";
-        }
-        allSucceeded = false;
-      }
-      finishedCount++;
-      if (finishedCount === allFiles.length) {
-        refreshFileList(allFiles, uploadResults, progressElements);
-      }
-    });
-
-    xhr.addEventListener("error", function () {
-      const li = progressElements[file.uploadIndex];
-      if (li) {
-        li.progressBar.innerText = "Error";
-      }
-      uploadResults[file.uploadIndex] = false;
-      allSucceeded = false;
-      finishedCount++;
-      if (finishedCount === allFiles.length) {
-        refreshFileList(allFiles, uploadResults, progressElements);
-      }
-    });
-
-    xhr.addEventListener("abort", function () {
-      const li = progressElements[file.uploadIndex];
-      if (li) {
-        li.progressBar.innerText = "Aborted";
-      }
-      uploadResults[file.uploadIndex] = false;
-      allSucceeded = false;
-      finishedCount++;
-      if (finishedCount === allFiles.length) {
-        refreshFileList(allFiles, uploadResults, progressElements);
-      }
-    });
-
-    xhr.open("POST", "upload.php", true);
-    // Set the CSRF token header to match the folderManager approach.
-    xhr.setRequestHeader("X-CSRF-Token", window.csrfToken);
-    xhr.send(formData);
-  });
-
-  function refreshFileList(allFiles, uploadResults, progressElements) {
-    loadFileList(folderToUse)
-      .then(serverFiles => {
-        initFileActions();
-        serverFiles = (serverFiles || []).map(item => item.name.trim().toLowerCase());
-        allFiles.forEach(file => {
-          if ((file.webkitRelativePath || file.customRelativePath || "").trim() !== "") {
-            return;
-          }
-          const clientFileName = file.name.trim().toLowerCase();
-          if (!uploadResults[file.uploadIndex] || !serverFiles.includes(clientFileName)) {
-            const li = progressElements[file.uploadIndex];
-            if (li) {
-              li.progressBar.innerText = "Error";
-            }
-            allSucceeded = false;
-          }
-        });
-        setTimeout(() => {
-          if (fileInput) fileInput.value = "";
-          const removeBtns = progressContainer.querySelectorAll("button.remove-file-btn");
-          removeBtns.forEach(btn => btn.style.display = "none");
-          progressContainer.innerHTML = "";
-          window.selectedFiles = [];
-          adjustFolderHelpExpansionClosed();
-          window.addEventListener("resize", adjustFolderHelpExpansionClosed);
-          const fileInfoContainer = document.getElementById("fileInfoContainer");
-          if (fileInfoContainer) {
-            fileInfoContainer.innerHTML = `<span id="fileInfoDefault">No files selected</span>`;
-          }
-          const dropArea = document.getElementById("uploadDropArea");
-          if (dropArea) setDropAreaDefault();
-        }, 5000);
-        if (!allSucceeded) {
-          showToast("Some files failed to upload. Please check the list.");
-        }
-      })
-      .catch(error => {
-        console.error("Error fetching file list:", error);
-        showToast("Some files may have failed to upload. Please check the list.");
-      })
-      .finally(() => {
-        loadFolderTree(window.currentFolder);
-      });
-  }
-}
-
-// Main initUpload: sets up file input, drop area, and form submission.
-function initUpload() {
-  const fileInput = document.getElementById("file");
-  const dropArea = document.getElementById("uploadDropArea");
-  const uploadForm = document.getElementById("uploadFileForm");
-
-  if (fileInput) {
-    fileInput.removeAttribute("webkitdirectory");
-    fileInput.removeAttribute("mozdirectory");
-    fileInput.removeAttribute("directory");
-    fileInput.setAttribute("multiple", "");
-  }
-
-  setDropAreaDefault();
-
-  if (dropArea) {
-    dropArea.classList.add("upload-drop-area");
-    dropArea.addEventListener("dragover", function (e) {
-      e.preventDefault();
-      dropArea.style.backgroundColor = document.body.classList.contains("dark-mode") ? "#333" : "#f8f8f8";
-    });
-    dropArea.addEventListener("dragleave", function (e) {
-      e.preventDefault();
-      dropArea.style.backgroundColor = "";
-    });
-    dropArea.addEventListener("drop", function (e) {
-      e.preventDefault();
-      dropArea.style.backgroundColor = "";
-      const dt = e.dataTransfer;
-      if (dt.items && dt.items.length > 0) {
-        getFilesFromDataTransferItems(dt.items).then(files => {
-          if (files.length > 0) {
-            processFiles(files);
-          }
-        });
-      } else if (dt.files && dt.files.length > 0) {
-        processFiles(dt.files);
-      }
-    });
-    dropArea.addEventListener("click", function () {
-      if (fileInput) fileInput.click();
-    });
-  }
-
-  if (fileInput) {
-    fileInput.addEventListener("change", function () {
-      processFiles(fileInput.files);
-    });
-  }
-
-  if (uploadForm) {
-    uploadForm.addEventListener("submit", function (e) {
-      e.preventDefault();
-      const files = window.selectedFiles || (fileInput ? fileInput.files : []);
-      if (!files || files.length === 0) {
-        showToast("No files selected.");
-        return;
-      }
-      submitFiles(files);
-    });
-  }
-}
-
-export { initUpload };

upload.php

@@ -12,122 +12,268 @@ if ($receivedToken !== $_SESSION['csrf_token']) {
     exit;
 }
 
-// Ensure user is authenticated
+// Ensure user is authenticated.
 if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
     echo json_encode(["error" => "Unauthorized"]);
     http_response_code(401);
     exit;
 }
 
-// Validate folder name input.
-$folder = isset($_POST['folder']) ? trim($_POST['folder']) : 'root';
-if ($folder !== 'root' && !preg_match('/^[A-Za-z0-9_\- \/]+$/', $folder)) {
-    echo json_encode(["error" => "Invalid folder name"]);
+$username = $_SESSION['username'] ?? '';
+if ($username) {
+    $userPermissions = loadUserPermissions($username);
+    if (isset($userPermissions['disableUpload']) && $userPermissions['disableUpload'] === true) {
+        http_response_code(403);  // Return a 403 Forbidden status.
+        echo json_encode(["error" => "Disabled upload users are not allowed to upload."]);
+        exit;
+    }
+}
+
+/*
+ * Handle test chunk requests.
+ * When testChunks is enabled in Resumable.js, the client sends GET requests with a "resumableTest" parameter.
+ */
+if ($_SERVER['REQUEST_METHOD'] === 'GET' && isset($_GET['resumableTest'])) {
+    $chunkNumber = intval($_GET['resumableChunkNumber']);
+    $resumableIdentifier = $_GET['resumableIdentifier'];
+    $folder = isset($_GET['folder']) ? trim($_GET['folder']) : 'root';
+    // Determine the base upload directory.
+    $baseUploadDir = UPLOAD_DIR;
+    if ($folder !== 'root') {
+        $baseUploadDir = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR . $folder . DIRECTORY_SEPARATOR;
+    }
+    $tempDir = $baseUploadDir . 'resumable_' . $resumableIdentifier . DIRECTORY_SEPARATOR;
+    $chunkFile = $tempDir . $chunkNumber;
+    if (file_exists($chunkFile)) {
+        http_response_code(200);
+    } else {
+        http_response_code(404);
+    }
     exit;
 }
 
-// Determine the base upload directory.
-$baseUploadDir = UPLOAD_DIR;
-if ($folder !== 'root') {
-    $baseUploadDir = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR . $folder . DIRECTORY_SEPARATOR;
-    if (!is_dir($baseUploadDir)) {
-        mkdir($baseUploadDir, 0775, true);
-    }
-} else {
-    if (!is_dir($baseUploadDir)) {
-        mkdir($baseUploadDir, 0775, true);
-    }
+// ---------------------
+// Chunked upload handling (POST requests)
+// ---------------------
+if (isset($_POST['resumableChunkNumber'])) {
+    // ------------- Chunked Upload Handling -------------
+    $chunkNumber         = intval($_POST['resumableChunkNumber']); // current chunk (1-indexed)
+    $totalChunks         = intval($_POST['resumableTotalChunks']);
+    $chunkSize           = intval($_POST['resumableChunkSize']);
+    $totalSize           = intval($_POST['resumableTotalSize']);
+    $resumableIdentifier = $_POST['resumableIdentifier'];           // unique file identifier
+    $resumableFilename   = $_POST['resumableFilename'];
+    
+
+if (!preg_match('/^[A-Za-z0-9_\-\.\(\) ]+$/', $resumableFilename)) {
+    http_response_code(400); // Set an error HTTP status code
+    echo json_encode(["error" => "Invalid file name: " . $resumableFilename]);
+    exit;
 }
-
-// Prepare a collection to hold metadata for each folder.
-$metadataCollection = []; // key: folder path, value: metadata array
-$metadataChanged = [];    // key: folder path, value: boolean
-
-$safeFileNamePattern = '/^[A-Za-z0-9_\-\.\(\) ]+$/';
-
-foreach ($_FILES["file"]["name"] as $index => $fileName) {
-    $safeFileName = basename($fileName);
-    if (!preg_match($safeFileNamePattern, $safeFileName)) {
-        echo json_encode(["error" => "Invalid file name: " . $fileName]);
+    
+    $folder = isset($_POST['folder']) ? trim($_POST['folder']) : 'root';
+    if ($folder !== 'root' && !preg_match('/^[A-Za-z0-9_\- \/]+$/', $folder)) {
+        echo json_encode(["error" => "Invalid folder name"]);
         exit;
     }
-    
-    // --- Minimal Folder/Subfolder Logic ---
-    $relativePath = '';
-    if (isset($_POST['relativePath'])) {
-        if (is_array($_POST['relativePath'])) {
-            $relativePath = $_POST['relativePath'][$index] ?? '';
-        } else {
-            $relativePath = $_POST['relativePath'];
-        }
-    }
-    
-    // Determine the complete folder path for upload and for metadata.
-    $folderPath = $folder; // Base folder as provided ("root" or a subfolder)
-    $uploadDir = $baseUploadDir; // Start with the base upload directory
-    if (!empty($relativePath)) {
-        $subDir = dirname($relativePath);
-        if ($subDir !== '.' && $subDir !== '') {
-            // If base folder is 'root', then folderPath is just the subDir
-            // Otherwise, append the subdirectory to the base folder
-            $folderPath = ($folder === 'root') ? $subDir : $folder . "/" . $subDir;
-            // Update the upload directory accordingly.
-            $uploadDir = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR 
-                        . str_replace('/', DIRECTORY_SEPARATOR, $folderPath) . DIRECTORY_SEPARATOR;
-        }
-        // Ensure the file name is taken from the relative path.
-        $safeFileName = basename($relativePath);
-    }
-    // --- End Minimal Folder/Subfolder Logic ---
-
-    // Make sure the final upload directory exists.
-    if (!is_dir($uploadDir)) {
-        mkdir($uploadDir, 0775, true);
-    }
-    
-    $targetPath = $uploadDir . $safeFileName;
-    
-    if (move_uploaded_file($_FILES["file"]["tmp_name"][$index], $targetPath)) {
-        // Generate a unique metadata file name based on the folder path.
-        // Replace slashes, backslashes, and spaces with dashes.
-        $metadataKey = ($folderPath === '' || $folderPath === 'root') ? "root" : $folderPath;
-        $metadataFileName = str_replace(['/', '\\', ' '], '-', $metadataKey) . '_metadata.json';
-        $metadataFile = META_DIR . $metadataFileName;
-        
-        // Load metadata for this folder if not already loaded.
-        if (!isset($metadataCollection[$metadataKey])) {
-            if (file_exists($metadataFile)) {
-                $metadataCollection[$metadataKey] = json_decode(file_get_contents($metadataFile), true);
-            } else {
-                $metadataCollection[$metadataKey] = [];
-            }
-            $metadataChanged[$metadataKey] = false;
-        }
-        
-        // Add metadata for this file if not already present.
-        if (!isset($metadataCollection[$metadataKey][$safeFileName])) {
-            $uploadedDate = date(DATE_TIME_FORMAT);
-            $uploader = $_SESSION['username'] ?? "Unknown";
-            $metadataCollection[$metadataKey][$safeFileName] = [
-                "uploaded" => $uploadedDate,
-                "uploader" => $uploader
-            ];
-            $metadataChanged[$metadataKey] = true;
+    // Determine the base upload directory.
+    $baseUploadDir = UPLOAD_DIR;
+    if ($folder !== 'root') {
+        $baseUploadDir = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR . $folder . DIRECTORY_SEPARATOR;
+        if (!is_dir($baseUploadDir)) {
+            mkdir($baseUploadDir, 0775, true);
         }
     } else {
-        echo json_encode(["error" => "Error uploading file"]);
+        if (!is_dir($baseUploadDir)) {
+            mkdir($baseUploadDir, 0775, true);
+        }
+    }
+    
+    // Use a temporary directory for the chunks.
+    $tempDir = $baseUploadDir . 'resumable_' . $resumableIdentifier . DIRECTORY_SEPARATOR;
+    if (!is_dir($tempDir)) {
+        mkdir($tempDir, 0775, true);
+    }
+    
+    // Save the current chunk.
+    $chunkFile = $tempDir . $chunkNumber; // store chunk using its number as filename
+    if (!move_uploaded_file($_FILES["file"]["tmp_name"], $chunkFile)) {
+        echo json_encode(["error" => "Failed to move uploaded chunk"]);
         exit;
     }
-}
-
-// After processing all files, write out metadata files for folders that changed.
-foreach ($metadataCollection as $folderKey => $data) {
-    if ($metadataChanged[$folderKey]) {
-        $metadataFileName = str_replace(['/', '\\', ' '], '-', $folderKey) . '_metadata.json';
-        $metadataFile = META_DIR . $metadataFileName;
-        file_put_contents($metadataFile, json_encode($data, JSON_PRETTY_PRINT));
+    
+    // Check if all chunks have been uploaded.
+    $uploadedChunks = glob($tempDir . "*");
+    if (count($uploadedChunks) < $totalChunks) {
+        // More chunks remain – respond and let the client continue.
+        echo json_encode(["status" => "chunk uploaded"]);
+        exit;
     }
+    
+    // All chunks are present. Merge chunks.
+    $targetPath = $baseUploadDir . $resumableFilename;
+    if (!$out = fopen($targetPath, "wb")) {
+        echo json_encode(["error" => "Failed to open target file for writing"]);
+        exit;
+    }
+    // Concatenate each chunk in order.
+    for ($i = 1; $i <= $totalChunks; $i++) {
+        $chunkPath = $tempDir . $i;
+        if (!$in = fopen($chunkPath, "rb")) {
+            fclose($out);
+            echo json_encode(["error" => "Failed to open chunk $i"]);
+            exit;
+        }
+        while ($buff = fread($in, 4096)) {
+            fwrite($out, $buff);
+        }
+        fclose($in);
+    }
+    fclose($out);
+    
+    // --- Metadata Update for Chunked Upload ---
+    // For chunked uploads, assume no relativePath; so folderPath is simply $folder.
+    $folderPath = $folder;
+    $metadataKey = ($folderPath === '' || $folderPath === 'root') ? "root" : $folderPath;
+    // Generate a metadata file name based on the folder path.
+    $metadataFileName = str_replace(['/', '\\', ' '], '-', $metadataKey) . '_metadata.json';
+    $metadataFile = META_DIR . $metadataFileName;
+    
+    $uploadedDate = date(DATE_TIME_FORMAT);
+    $uploader = $_SESSION['username'] ?? "Unknown";
+    
+    // Load existing metadata, if any.
+    if (file_exists($metadataFile)) {
+        $metadataCollection = json_decode(file_get_contents($metadataFile), true);
+        if (!is_array($metadataCollection)) {
+            $metadataCollection = [];
+        }
+    } else {
+        $metadataCollection = [];
+    }
+    
+    // Add metadata for this file if not already present.
+    if (!isset($metadataCollection[$resumableFilename])) {
+        $metadataCollection[$resumableFilename] = [
+            "uploaded" => $uploadedDate,
+            "uploader" => $uploader
+        ];
+        file_put_contents($metadataFile, json_encode($metadataCollection, JSON_PRETTY_PRINT));
+    }
+    // --- End Metadata Update ---
+    
+    // Cleanup: remove the temporary directory and its chunks.
+    array_map('unlink', glob("$tempDir*"));
+    rmdir($tempDir);
+    
+    echo json_encode(["success" => "File uploaded successfully"]);
+    exit;
+    
+} else {
+    // ------------- Full Upload (Non-chunked) -------------
+    // Validate folder name input.
+    $folder = isset($_POST['folder']) ? trim($_POST['folder']) : 'root';
+    if ($folder !== 'root' && !preg_match('/^[A-Za-z0-9_\- \/]+$/', $folder)) {
+        echo json_encode(["error" => "Invalid folder name"]);
+        exit;
+    }
+    
+    // Determine the base upload directory.
+    $baseUploadDir = UPLOAD_DIR;
+    if ($folder !== 'root') {
+        $baseUploadDir = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR . $folder . DIRECTORY_SEPARATOR;
+        if (!is_dir($baseUploadDir)) {
+            mkdir($baseUploadDir, 0775, true);
+        }
+    } else {
+        if (!is_dir($baseUploadDir)) {
+            mkdir($baseUploadDir, 0775, true);
+        }
+    }
+    
+    // Prepare a collection to hold metadata for each folder.
+    $metadataCollection = []; // key: folder path, value: metadata array
+    $metadataChanged = [];    // key: folder path, value: boolean
+    
+    $safeFileNamePattern = '/^[A-Za-z0-9_\-\.\(\) ]+$/';
+    
+    foreach ($_FILES["file"]["name"] as $index => $fileName) {
+        $safeFileName = basename($fileName);
+        if (!preg_match($safeFileNamePattern, $safeFileName)) {
+            echo json_encode(["error" => "Invalid file name: " . $fileName]);
+            exit;
+        }
+        
+        // --- Minimal Folder/Subfolder Logic ---
+        $relativePath = '';
+        if (isset($_POST['relativePath'])) {
+            if (is_array($_POST['relativePath'])) {
+                $relativePath = $_POST['relativePath'][$index] ?? '';
+            } else {
+                $relativePath = $_POST['relativePath'];
+            }
+        }
+        
+        // Determine the complete folder path for upload and for metadata.
+        $folderPath = $folder; // Base folder as provided ("root" or a subfolder)
+        $uploadDir = $baseUploadDir; // Start with the base upload directory
+        if (!empty($relativePath)) {
+            $subDir = dirname($relativePath);
+            if ($subDir !== '.' && $subDir !== '') {
+                $folderPath = ($folder === 'root') ? $subDir : $folder . "/" . $subDir;
+                $uploadDir = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR 
+                            . str_replace('/', DIRECTORY_SEPARATOR, $folderPath) . DIRECTORY_SEPARATOR;
+            }
+            $safeFileName = basename($relativePath);
+        }
+        // --- End Minimal Folder/Subfolder Logic ---
+        
+        // Make sure the final upload directory exists.
+        if (!is_dir($uploadDir)) {
+            mkdir($uploadDir, 0775, true);
+        }
+        
+        $targetPath = $uploadDir . $safeFileName;
+        
+        if (move_uploaded_file($_FILES["file"]["tmp_name"][$index], $targetPath)) {
+            // Generate a unique metadata file name based on the folder path.
+            $metadataKey = ($folderPath === '' || $folderPath === 'root') ? "root" : $folderPath;
+            $metadataFileName = str_replace(['/', '\\', ' '], '-', $metadataKey) . '_metadata.json';
+            $metadataFile = META_DIR . $metadataFileName;
+            
+            if (!isset($metadataCollection[$metadataKey])) {
+                if (file_exists($metadataFile)) {
+                    $metadataCollection[$metadataKey] = json_decode(file_get_contents($metadataFile), true);
+                } else {
+                    $metadataCollection[$metadataKey] = [];
+                }
+                $metadataChanged[$metadataKey] = false;
+            }
+            
+            if (!isset($metadataCollection[$metadataKey][$safeFileName])) {
+                $uploadedDate = date(DATE_TIME_FORMAT);
+                $uploader = $_SESSION['username'] ?? "Unknown";
+                $metadataCollection[$metadataKey][$safeFileName] = [
+                    "uploaded" => $uploadedDate,
+                    "uploader" => $uploader
+                ];
+                $metadataChanged[$metadataKey] = true;
+            }
+        } else {
+            echo json_encode(["error" => "Error uploading file"]);
+            exit;
+        }
+    }
+    
+    // After processing all files, write out metadata files for folders that changed.
+    foreach ($metadataCollection as $folderKey => $data) {
+        if ($metadataChanged[$folderKey]) {
+            $metadataFileName = str_replace(['/', '\\', ' '], '-', $folderKey) . '_metadata.json';
+            $metadataFile = META_DIR . $metadataFileName;
+            file_put_contents($metadataFile, json_encode($data, JSON_PRETTY_PRINT));
+        }
+    }
+    
+    echo json_encode(["success" => "Files uploaded successfully"]);
 }
-
-echo json_encode(["success" => "Files uploaded successfully"]);
 ?>

uploadToSharedFolder.php

@@ -0,0 +1,153 @@
+<?php
+// uploadToSharedFolder.php
+
+require_once 'config.php';
+
+// Only accept POST requests.
+if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+    http_response_code(405);
+    echo json_encode(["error" => "Method not allowed."]);
+    exit;
+}
+
+// Ensure the share token is provided.
+if (empty($_POST['token'])) {
+    http_response_code(400);
+    echo json_encode(["error" => "Missing share token."]);
+    exit;
+}
+
+$token = trim($_POST['token']);
+
+// Load the share folder records.
+$shareFile = META_DIR . "share_folder_links.json";
+if (!file_exists($shareFile)) {
+    http_response_code(404);
+    echo json_encode(["error" => "Share record not found."]);
+    exit;
+}
+
+$shareLinks = json_decode(file_get_contents($shareFile), true);
+if (!is_array($shareLinks) || !isset($shareLinks[$token])) {
+    http_response_code(404);
+    echo json_encode(["error" => "Invalid share token."]);
+    exit;
+}
+
+$record = $shareLinks[$token];
+
+// Check if the share link is expired.
+if (time() > $record['expires']) {
+    http_response_code(403);
+    echo json_encode(["error" => "This share link has expired."]);
+    exit;
+}
+
+// Ensure that uploads are allowed for this share.
+if (empty($record['allowUpload']) || $record['allowUpload'] != 1) {
+    http_response_code(403);
+    echo json_encode(["error" => "File uploads are not allowed for this share."]);
+    exit;
+}
+
+// Check that a file was uploaded.
+if (!isset($_FILES['fileToUpload'])) {
+    http_response_code(400);
+    echo json_encode(["error" => "No file was uploaded."]);
+    exit;
+}
+
+$fileUpload = $_FILES['fileToUpload'];
+
+// Check for upload errors.
+if ($fileUpload['error'] !== UPLOAD_ERR_OK) {
+    http_response_code(400);
+    echo json_encode(["error" => "File upload error. Code: " . $fileUpload['error']]);
+    exit;
+}
+
+// Enforce a maximum file size (e.g. 50MB).
+$maxSize = 50 * 1024 * 1024; // 50MB
+if ($fileUpload['size'] > $maxSize) {
+    http_response_code(400);
+    echo json_encode(["error" => "File size exceeds allowed limit."]);
+    exit;
+}
+
+// Define allowed file extensions.
+$allowedExtensions = ['jpg','jpeg','png','gif','pdf','doc','docx','txt','xls','xlsx','ppt','pptx','mp4','webm','mp3'];
+$uploadedName = basename($fileUpload['name']);
+$ext = strtolower(pathinfo($uploadedName, PATHINFO_EXTENSION));
+if (!in_array($ext, $allowedExtensions)) {
+    http_response_code(400);
+    echo json_encode(["error" => "File type not allowed."]);
+    exit;
+}
+
+// Determine the target folder from the share record.
+$folder = trim($record['folder'], "/\\");
+$targetFolder = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR . $folder;
+$realTargetFolder = realpath($targetFolder);
+$uploadDirReal = realpath(UPLOAD_DIR);
+
+if ($realTargetFolder === false || strpos($realTargetFolder, $uploadDirReal) !== 0 || !is_dir($realTargetFolder)) {
+    http_response_code(404);
+    echo json_encode(["error" => "Shared folder not found."]);
+    exit;
+}
+
+// Generate a new filename to avoid collisions.
+// A unique prefix (using uniqid) is prepended to help with uniqueness and traceability.
+$newFilename = uniqid() . "_" . preg_replace('/[^A-Za-z0-9_\-\.]/', '_', $uploadedName);
+$targetPath = $realTargetFolder . DIRECTORY_SEPARATOR . $newFilename;
+
+// Move the uploaded file securely.
+if (!move_uploaded_file($fileUpload['tmp_name'], $targetPath)) {
+    http_response_code(500);
+    echo json_encode(["error" => "Failed to move the uploaded file."]);
+    exit;
+}
+
+// --- Metadata Update for Shared Upload ---
+// We want to update metadata similarly to your normal upload.
+// Determine a key for metadata storage for the folder.
+$metadataKey = ($folder === '' || $folder === 'root') ? "root" : $folder;
+// Sanitize the metadata file name.
+$metadataFileName = str_replace(['/', '\\', ' '], '-', $metadataKey) . '_metadata.json';
+$metadataFile = META_DIR . $metadataFileName;
+
+// Load existing metadata if available.
+$metadataCollection = [];
+if (file_exists($metadataFile)) {
+    $data = file_get_contents($metadataFile);
+    $metadataCollection = json_decode($data, true);
+    if (!is_array($metadataCollection)) {
+        $metadataCollection = [];
+    }
+}
+
+// Set upload date using your defined format.
+$uploadedDate = date(DATE_TIME_FORMAT);
+
+// Since there is no logged-in user for public share uploads,
+$uploader = "Outside Share";
+
+// Update metadata for the new file.
+if (!isset($metadataCollection[$newFilename])) {
+    $metadataCollection[$newFilename] = [
+        "uploaded" => $uploadedDate,
+        "uploader" => $uploader
+    ];
+}
+
+// Save the metadata.
+file_put_contents($metadataFile, json_encode($metadataCollection, JSON_PRETTY_PRINT));
+// --- End Metadata Update ---
+
+// Optionally, set a flash message in session.
+$_SESSION['upload_message'] = "File uploaded successfully.";
+
+// Redirect back to the shared folder view, refreshing the file listing.
+header("Location: shareFolder.php?token=" . urlencode($token));
+exit;
+?>