Files
FileRise/src/controllers/FileController.php

1576 lines
70 KiB
PHP

<?php
// src/controllers/FileController.php
require_once __DIR__ . '/../../config/config.php';
require_once PROJECT_ROOT . '/src/models/FileModel.php';
require_once PROJECT_ROOT . '/src/models/UserModel.php';
require_once PROJECT_ROOT . '/src/models/FolderModel.php';
require_once PROJECT_ROOT . '/src/lib/ACL.php';
class FileController
{
/* =========================
* Permission helpers (fail-closed)
* ========================= */
private function isAdmin(array $perms): bool {
if (!empty($perms['admin']) || !empty($perms['isAdmin'])) return true;
if (!empty($_SESSION['isAdmin']) && $_SESSION['isAdmin'] === true) return true;
$role = $_SESSION['role'] ?? null;
if ($role === 'admin' || $role === '1' || $role === 1) return true;
$u = $_SESSION['username'] ?? '';
if ($u) {
$roleStr = userModel::getUserRole($u);
if ($roleStr === '1') return true;
}
return false;
}
private function isFolderOnly(array $perms): bool {
return !empty($perms['folderOnly']) || !empty($perms['userFolderOnly']) || !empty($perms['UserFolderOnly']);
}
private function getMetadataPath(string $folder): string {
$folder = trim($folder);
if ($folder === '' || strtolower($folder) === 'root') {
return META_DIR . 'root_metadata.json';
}
return META_DIR . str_replace(['/', '\\', ' '], '-', $folder) . '_metadata.json';
}
private function loadFolderMetadata(string $folder): array {
$meta = $this->getMetadataPath($folder);
if (file_exists($meta)) {
$data = json_decode(file_get_contents($meta), true);
if (is_array($data)) return $data;
}
return [];
}
private function loadPerms(string $username): array {
try {
if (function_exists('loadUserPermissions')) {
$p = loadUserPermissions($username);
return is_array($p) ? $p : [];
}
if (class_exists('userModel') && method_exists('userModel', 'getUserPermissions')) {
$all = userModel::getUserPermissions();
if (is_array($all)) {
if (isset($all[$username])) return (array)$all[$username];
$lk = strtolower($username);
if (isset($all[$lk])) return (array)$all[$lk];
}
}
} catch (\Throwable $e) { /* ignore */ }
return [];
}
private static function folderOfPath(string $path): string {
// normalize path to folder; files: use dirname, folders: return path
$p = trim(str_replace('\\', '/', $path), "/ \t\r\n");
if ($p === '' || $p === 'root') return 'root';
// If it ends with a slash or is an existing folder path, treat as folder
if (substr($p, -1) === '/') $p = rtrim($p, '/');
// For files, take the parent folder
$dir = dirname($p);
return ($dir === '.' || $dir === '') ? 'root' : $dir;
}
private static function ensureSrcDstAllowedForCopy(
string $user, array $perms, string $srcPath, string $dstFolder
): bool {
$srcFolder = ACL::normalizeFolder(self::folderOfPath($srcPath));
$dstFolder = ACL::normalizeFolder($dstFolder);
// Need to be able to see the source (own or full) and copy into destination
return ACL::canReadOwn($user, $perms, $srcFolder)
&& ACL::canCopy($user, $perms, $dstFolder);
}
private static function ensureSrcDstAllowedForMove(
string $user, array $perms, string $srcPath, string $dstFolder
): bool {
$srcFolder = ACL::normalizeFolder(self::folderOfPath($srcPath));
$dstFolder = ACL::normalizeFolder($dstFolder);
// Move removes from source and adds to dest
return ACL::canDelete($user, $perms, $srcFolder)
&& ACL::canMove($user, $perms, $dstFolder);
}
/**
* Ownership-only enforcement for a set of files in a folder.
* Returns null if OK, or an error string.
*/
private function enforceScopeAndOwnership(string $folder, array $files, string $username, array $userPermissions): ?string {
$ignoreOwnership = $this->isAdmin($userPermissions)
|| ($userPermissions['bypassOwnership'] ?? (defined('DEFAULT_BYPASS_OWNERSHIP') ? DEFAULT_BYPASS_OWNERSHIP : false));
if ($ignoreOwnership) return null;
$metadata = $this->loadFolderMetadata($folder);
foreach ($files as $f) {
$name = basename((string)$f);
if (!isset($metadata[$name]['uploader']) || strcasecmp((string)$metadata[$name]['uploader'], $username) !== 0) {
return "Forbidden: you are not the owner of '{$name}'.";
}
}
return null;
}
/**
* True if the user is an owner of the folder or any ancestor folder (admin also true).
*/
private function ownsFolderOrAncestor(string $folder, string $username, array $userPermissions): bool {
if ($this->isAdmin($userPermissions)) return true;
$folder = ACL::normalizeFolder($folder);
// Direct folder first, then walk up ancestors (excluding 'root' sentinel)
$f = $folder;
while ($f !== '' && strtolower($f) !== 'root') {
if (ACL::isOwner($username, $userPermissions, $f)) {
return true;
}
$pos = strrpos($f, '/');
$f = ($pos === false) ? '' : substr($f, 0, $pos);
}
return false;
}
/**
* Enforce per-folder scope when the account is in "folder-only" mode.
* $need: 'read' (default) | 'write' | 'manage' | 'share' | 'read_own'
* Returns null if allowed, or an error string if forbidden.
*/
private function enforceFolderScope(
string $folder,
string $username,
array $userPermissions,
string $need = 'read'
): ?string {
// Admins bypass all folder scope checks
if ($this->isAdmin($userPermissions)) return null;
// If the account isn't restricted to a folder scope, don't gate here
if (!$this->isFolderOnly($userPermissions)) return null;
$folder = ACL::normalizeFolder($folder);
// If user owns this folder (or any ancestor), allow
$f = $folder;
while ($f !== '' && strtolower($f) !== 'root') {
if (ACL::isOwner($username, $userPermissions, $f)) {
return null;
}
$pos = strrpos($f, '/');
$f = ($pos === false) ? '' : substr($f, 0, $pos);
}
// Otherwise, require the specific capability on the target folder
$ok = false;
switch ($need) {
case 'manage': $ok = ACL::canManage($username, $userPermissions, $folder); break;
case 'write': $ok = ACL::canWrite($username, $userPermissions, $folder); break; // legacy
case 'share': $ok = ACL::canShare($username, $userPermissions, $folder); break; // legacy
case 'read_own': $ok = ACL::canReadOwn($username, $userPermissions, $folder); break;
// granular:
case 'create': $ok = ACL::canCreate($username, $userPermissions, $folder); break;
case 'upload': $ok = ACL::canUpload($username, $userPermissions, $folder); break;
case 'edit': $ok = ACL::canEdit($username, $userPermissions, $folder); break;
case 'rename': $ok = ACL::canRename($username, $userPermissions, $folder); break;
case 'copy': $ok = ACL::canCopy($username, $userPermissions, $folder); break;
case 'move': $ok = ACL::canMove($username, $userPermissions, $folder); break;
case 'delete': $ok = ACL::canDelete($username, $userPermissions, $folder); break;
case 'extract': $ok = ACL::canExtract($username, $userPermissions, $folder); break;
case 'shareFile':
case 'share_file': $ok = ACL::canShareFile($username, $userPermissions, $folder); break;
case 'shareFolder':
case 'share_folder': $ok = ACL::canShareFolder($username, $userPermissions, $folder); break;
default: // 'read'
$ok = ACL::canRead($username, $userPermissions, $folder);
}
return $ok ? null : "Forbidden: folder scope violation.";
}
private function spawnZipWorker(string $token, string $tokFile, string $logDir): array
{
$worker = realpath(PROJECT_ROOT . '/src/cli/zip_worker.php');
if (!$worker || !is_file($worker)) {
return ['ok'=>false, 'error'=>'zip_worker.php not found'];
}
// Find a PHP CLI binary that actually works
$candidates = array_values(array_filter([
PHP_BINARY ?: null,
'/usr/local/bin/php',
'/usr/bin/php',
'/bin/php'
]));
$php = null;
foreach ($candidates as $bin) {
if (!$bin) continue;
$rc = 1;
@exec(escapeshellcmd($bin).' -v >/dev/null 2>&1', $o, $rc);
if ($rc === 0) { $php = $bin; break; }
}
if (!$php) {
return ['ok'=>false, 'error'=>'No working php CLI found'];
}
$logFile = $logDir . DIRECTORY_SEPARATOR . 'WORKER-' . $token . '.log';
// Ensure TMPDIR is on the same FS as the final zip; actually apply it to the child process.
$tmpDir = rtrim((string)META_DIR, '/\\') . '/ziptmp';
@mkdir($tmpDir, 0775, true);
// Build one sh -c string so env + nohup + echo $! are in the same shell
$cmdStr =
'export TMPDIR=' . escapeshellarg($tmpDir) . ' ; ' .
'nohup ' . escapeshellcmd($php) . ' ' . escapeshellarg($worker) . ' ' . escapeshellarg($token) .
' >> ' . escapeshellarg($logFile) . ' 2>&1 & echo $!';
$pid = @shell_exec('/bin/sh -c ' . escapeshellarg($cmdStr));
$pid = is_string($pid) ? (int)trim($pid) : 0;
// Persist spawn metadata into token (best-effort)
$job = json_decode((string)@file_get_contents($tokFile), true) ?: [];
$job['spawn'] = [
'ts' => time(),
'php' => $php,
'pid' => $pid,
'log' => $logFile
];
@file_put_contents($tokFile, json_encode($job, JSON_PRETTY_PRINT), LOCK_EX);
return $pid > 0 ? ['ok'=>true] : ['ok'=>false, 'error'=>'spawn returned no PID'];
}
// --- small helpers ---
private function _jsonStart(): void {
if (session_status() !== PHP_SESSION_ACTIVE) session_start();
header('Content-Type: application/json; charset=utf-8');
set_error_handler(function ($severity, $message, $file, $line) {
if (!(error_reporting() & $severity)) return;
throw new ErrorException($message, 0, $severity, $file, $line);
});
}
private function _jsonEnd(): void { restore_error_handler(); }
private function _jsonOut(array $payload, int $status = 200): void {
http_response_code($status);
echo json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
}
private function _checkCsrf(): bool {
$headersArr = function_exists('getallheaders')
? array_change_key_case(getallheaders(), CASE_LOWER)
: [];
$receivedToken = $headersArr['x-csrf-token'] ?? '';
if (!isset($_SESSION['csrf_token']) || $receivedToken !== $_SESSION['csrf_token']) {
$this->_jsonOut(['error' => 'Invalid CSRF token'], 403);
return false;
}
return true;
}
private function _requireAuth(): bool {
if (empty($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
$this->_jsonOut(['error' => 'Unauthorized'], 401);
return false;
}
return true;
}
private function _readJsonBody(): array {
$raw = file_get_contents('php://input');
$data = json_decode($raw, true);
return is_array($data) ? $data : [];
}
private function _normalizeFolder($f): string {
$f = trim((string)$f);
if ($f === '' || strtolower($f) === 'root') return 'root';
return $f;
}
private function _validFolder($f): bool {
if ($f === 'root') return true;
return (bool)preg_match(REGEX_FOLDER_NAME, $f);
}
private function _validFile($f): bool {
$f = basename((string)$f);
return $f !== '' && (bool)preg_match(REGEX_FILE_NAME, $f);
}
/* =========================
* Actions
* ========================= */
public function copyFiles()
{
$this->_jsonStart();
try {
if (!$this->_checkCsrf()) return;
if (!$this->_requireAuth()) return;
$data = $this->_readJsonBody();
if (
!$data
|| !isset($data['source'], $data['destination'], $data['files'])
|| !is_array($data['files'])
) {
$this->_jsonOut(["error" => "Invalid request"], 400); return;
}
$sourceFolder = $this->_normalizeFolder($data['source']);
$destinationFolder = $this->_normalizeFolder($data['destination']);
$files = array_values(array_filter(array_map('basename', (array)$data['files'])));
if (!$this->_validFolder($sourceFolder) || !$this->_validFolder($destinationFolder)) {
$this->_jsonOut(["error" => "Invalid folder name(s)."], 400); return;
}
if (empty($files)) {
$this->_jsonOut(["error" => "No files specified."], 400); return;
}
$username = $_SESSION['username'] ?? '';
$userPermissions = $this->loadPerms($username);
// --- Permission gates (granular) ------------------------------------
// Source: own-only view is enough to copy (we'll enforce ownership below if no full read)
$hasSourceView = ACL::canReadOwn($username, $userPermissions, $sourceFolder)
|| $this->ownsFolderOrAncestor($sourceFolder, $username, $userPermissions);
if (!$hasSourceView) {
$this->_jsonOut(["error" => "Forbidden: no read access to source"], 403); return;
}
// Destination: must have 'copy' capability (or own ancestor)
$hasDestCreate = ACL::canCreate($username, $userPermissions, $destinationFolder)
|| $this->ownsFolderOrAncestor($destinationFolder, $username, $userPermissions);
if (!$hasDestCreate) {
$this->_jsonOut(["error" => "Forbidden: no write access to destination"], 403); return;
}
$needSrcScope = ACL::canRead($username, $userPermissions, $sourceFolder) ? 'read' : 'read_own';
// Folder-scope checks with the needed capabilities
$sv = $this->enforceFolderScope($sourceFolder, $username, $userPermissions, $needSrcScope);
if ($sv) { $this->_jsonOut(["error" => $sv], 403); return; }
$dv = $this->enforceFolderScope($destinationFolder, $username, $userPermissions, 'create');
if ($dv) { $this->_jsonOut(["error" => $dv], 403); return; }
// If the user doesn't have full read on source (only read_own), enforce per-file ownership
$ignoreOwnership = $this->isAdmin($userPermissions)
|| ($userPermissions['bypassOwnership'] ?? (defined('DEFAULT_BYPASS_OWNERSHIP') ? DEFAULT_BYPASS_OWNERSHIP : false));
if (
!$ignoreOwnership
&& !ACL::canRead($username, $userPermissions, $sourceFolder) // no explicit full read
&& ACL::hasGrant($username, $sourceFolder, 'read_own') // but has own-only
) {
$ownErr = $this->enforceScopeAndOwnership($sourceFolder, $files, $username, $userPermissions);
if ($ownErr) { $this->_jsonOut(["error" => $ownErr], 403); return; }
}
// Account flags: copy writes new objects into destination
if (!empty($userPermissions['readOnly'])) {
$this->_jsonOut(["error" => "Account is read-only."], 403); return;
}
if (!empty($userPermissions['disableUpload'])) {
$this->_jsonOut(["error" => "Uploads are disabled for your account."], 403); return;
}
// --- Do the copy ----------------------------------------------------
$result = FileModel::copyFiles($sourceFolder, $destinationFolder, $files);
$this->_jsonOut($result);
} catch (Throwable $e) {
error_log('FileController::copyFiles error: '.$e->getMessage().' @ '.$e->getFile().':'.$e->getLine());
$this->_jsonOut(['error' => 'Internal server error while copying files.'], 500);
} finally {
$this->_jsonEnd();
}
}
public function deleteFiles()
{
$this->_jsonStart();
try {
if (!$this->_checkCsrf()) return;
if (!$this->_requireAuth()) return;
$data = $this->_readJsonBody();
if (!is_array($data) || !isset($data['files']) || !is_array($data['files'])) {
$this->_jsonOut(["error" => "No file names provided"], 400); return;
}
// sanitize/normalize the list (empty names filtered out)
$files = array_values(array_filter(array_map('strval', $data['files']), fn($s) => $s !== ''));
if (!$files) {
$this->_jsonOut(["error" => "No file names provided"], 400); return;
}
$folder = $this->_normalizeFolder($data['folder'] ?? 'root');
if (!$this->_validFolder($folder)) {
$this->_jsonOut(["error" => "Invalid folder name."], 400); return;
}
$username = $_SESSION['username'] ?? '';
$userPermissions = $this->loadPerms($username);
// --- Permission gates (granular) ------------------------------------
// Need delete on folder (or ancestor-owner)
$hasDelete = ACL::canDelete($username, $userPermissions, $folder)
|| $this->ownsFolderOrAncestor($folder, $username, $userPermissions);
if (!$hasDelete) {
$this->_jsonOut(["error" => "Forbidden: no delete permission"], 403); return;
}
// --- Folder-scope check (granular) ----------------------------------
$dv = $this->enforceFolderScope($folder, $username, $userPermissions, 'delete');
if ($dv) { $this->_jsonOut(["error" => $dv], 403); return; }
// --- Ownership enforcement when user only has viewOwn ----------------
$ignoreOwnership = $this->isAdmin($userPermissions)
|| ($userPermissions['bypassOwnership'] ?? (defined('DEFAULT_BYPASS_OWNERSHIP') ? DEFAULT_BYPASS_OWNERSHIP : false));
$isFolderOwner = ACL::isOwner($username, $userPermissions, $folder) || $this->ownsFolderOrAncestor($folder, $username, $userPermissions);
// If user is not owner/admin and does NOT have full view, but does have own-only, enforce per-file ownership
if (
!$ignoreOwnership
&& !$isFolderOwner
&& !ACL::canRead($username, $userPermissions, $folder) // lacks full read
&& ACL::hasGrant($username, $folder, 'read_own') // has own-only
) {
$ownErr = $this->enforceScopeAndOwnership($folder, $files, $username, $userPermissions);
if ($ownErr) { $this->_jsonOut(["error" => $ownErr], 403); return; }
}
// --- Perform delete --------------------------------------------------
$result = FileModel::deleteFiles($folder, $files);
$this->_jsonOut($result);
} catch (Throwable $e) {
error_log('FileController::deleteFiles error: '.$e->getMessage().' @ '.$e->getFile().':'.$e->getLine());
$this->_jsonOut(['error' => 'Internal server error while deleting files.'], 500);
} finally { $this->_jsonEnd(); }
}
public function moveFiles()
{
$this->_jsonStart();
try {
if (!$this->_checkCsrf()) return;
if (!$this->_requireAuth()) return;
$data = $this->_readJsonBody();
if (
!$data
|| !isset($data['source'], $data['destination'], $data['files'])
|| !is_array($data['files'])
) {
$this->_jsonOut(["error" => "Invalid request"], 400); return;
}
$sourceFolder = $this->_normalizeFolder($data['source']);
$destinationFolder = $this->_normalizeFolder($data['destination']);
if (!$this->_validFolder($sourceFolder) || !$this->_validFolder($destinationFolder)) {
$this->_jsonOut(["error" => "Invalid folder name(s)."], 400); return;
}
$files = $data['files'];
$username = $_SESSION['username'] ?? '';
$userPermissions = $this->loadPerms($username);
// --- Permission gates (granular) ------------------------------------
// Must be able to at least SEE the source and DELETE there
$hasSourceView = ACL::canReadOwn($username, $userPermissions, $sourceFolder)
|| $this->ownsFolderOrAncestor($sourceFolder, $username, $userPermissions);
if (!$hasSourceView) {
$this->_jsonOut(["error" => "Forbidden: no read access to source"], 403); return;
}
$hasSourceDelete = ACL::canDelete($username, $userPermissions, $sourceFolder)
|| $this->ownsFolderOrAncestor($sourceFolder, $username, $userPermissions);
if (!$hasSourceDelete) {
$this->_jsonOut(["error" => "Forbidden: no delete permission on source"], 403); return;
}
// Destination must allow MOVE
$hasDestMove = ACL::canMove($username, $userPermissions, $destinationFolder)
|| $this->ownsFolderOrAncestor($destinationFolder, $username, $userPermissions);
if (!$hasDestMove) {
$this->_jsonOut(["error" => "Forbidden: no move permission on destination"], 403); return;
}
// --- Folder-scope checks --------------------------------------------
// Source needs 'delete' scope; destination needs 'move' scope
$sv = $this->enforceFolderScope($sourceFolder, $username, $userPermissions, 'delete');
if ($sv) { $this->_jsonOut(["error" => $sv], 403); return; }
$dv = $this->enforceFolderScope($destinationFolder, $username, $userPermissions, 'move');
if ($dv) { $this->_jsonOut(["error" => $dv], 403); return; }
// --- Ownership enforcement when only viewOwn on source --------------
$ignoreOwnership = $this->isAdmin($userPermissions)
|| ($userPermissions['bypassOwnership'] ?? (defined('DEFAULT_BYPASS_OWNERSHIP') ? DEFAULT_BYPASS_OWNERSHIP : false));
if (
!$ignoreOwnership
&& !ACL::canRead($username, $userPermissions, $sourceFolder) // no explicit full read
&& ACL::hasGrant($username, $sourceFolder, 'read_own') // but has own-only
) {
$ownErr = $this->enforceScopeAndOwnership($sourceFolder, $files, $username, $userPermissions);
if ($ownErr) { $this->_jsonOut(["error"=>$ownErr], 403); return; }
}
// --- Perform move ----------------------------------------------------
$result = FileModel::moveFiles($sourceFolder, $destinationFolder, $files);
$this->_jsonOut($result);
} catch (Throwable $e) {
error_log('FileController::moveFiles error: '.$e->getMessage().' @ '.$e->getFile().':'.$e->getLine());
$this->_jsonOut(['error' => 'Internal server error while moving files.'], 500);
} finally {
$this->_jsonEnd();
}
}
public function renameFile()
{
$this->_jsonStart();
try {
if (!$this->_checkCsrf()) return;
if (!$this->_requireAuth()) return;
$data = $this->_readJsonBody();
if (!$data || !isset($data['folder'], $data['oldName'], $data['newName'])) {
$this->_jsonOut(["error" => "Invalid input"], 400); return;
}
$folder = $this->_normalizeFolder($data['folder']);
$oldName = basename(trim((string)$data['oldName']));
$newName = basename(trim((string)$data['newName']));
if (!$this->_validFolder($folder)) { $this->_jsonOut(["error"=>"Invalid folder name"], 400); return; }
if (!$this->_validFile($oldName) || !$this->_validFile($newName)) {
$this->_jsonOut(["error"=>"Invalid file name(s)."], 400); return;
}
$username = $_SESSION['username'] ?? '';
$userPermissions = $this->loadPerms($username);
// Need granular rename (or ancestor-owner)
if (!(ACL::canRename($username, $userPermissions, $folder))) {
$this->_jsonOut(["error"=>"Forbidden: no rename rights"], 403); return;
}
// Folder scope: rename
$dv = $this->enforceFolderScope($folder, $username, $userPermissions, 'rename');
if ($dv) { $this->_jsonOut(["error"=>$dv], 403); return; }
// Ownership for non-admins when not a folder owner
$ignoreOwnership = $this->isAdmin($userPermissions)
|| ($userPermissions['bypassOwnership'] ?? (defined('DEFAULT_BYPASS_OWNERSHIP') ? DEFAULT_BYPASS_OWNERSHIP : false));
$isFolderOwner = ACL::isOwner($username, $userPermissions, $folder) || $this->ownsFolderOrAncestor($folder, $username, $userPermissions);
if (!$ignoreOwnership && !$isFolderOwner) {
$violation = $this->enforceScopeAndOwnership($folder, [$oldName], $username, $userPermissions);
if ($violation) { $this->_jsonOut(["error"=>$violation], 403); return; }
}
$result = FileModel::renameFile($folder, $oldName, $newName);
if (!is_array($result)) throw new RuntimeException('FileModel::renameFile returned non-array');
if (isset($result['error'])) { $this->_jsonOut($result, 400); return; }
$this->_jsonOut($result);
} catch (Throwable $e) {
error_log('FileController::renameFile error: '.$e->getMessage().' @ '.$e->getFile().':'.$e->getLine());
$this->_jsonOut(['error' => 'Internal server error while renaming file.'], 500);
} finally { $this->_jsonEnd(); }
}
public function saveFile()
{
$this->_jsonStart();
try {
if (!$this->_checkCsrf()) return;
if (!$this->_requireAuth()) return;
$data = $this->_readJsonBody();
if (empty($data) || !isset($data["fileName"])) {
$this->_jsonOut(["error" => "Invalid request data"], 400); return;
}
$fileName = basename(trim((string)$data["fileName"]));
$folder = $this->_normalizeFolder($data["folder"] ?? 'root');
if (!$this->_validFile($fileName)) { $this->_jsonOut(["error"=>"Invalid file name."], 400); return; }
if (!$this->_validFolder($folder)) { $this->_jsonOut(["error"=>"Invalid folder name."], 400); return; }
$username = $_SESSION['username'] ?? '';
$userPermissions = $this->loadPerms($username);
// Need write (or ancestor-owner)
if (!(ACL::canEdit($username, $userPermissions, $folder) || $this->ownsFolderOrAncestor($folder, $username, $userPermissions))) {
$this->_jsonOut(["error"=>"Forbidden: no full write access"], 403); return;
}
// Folder scope: write
$dv = $this->enforceFolderScope($folder, $username, $userPermissions, 'edit');
if ($dv) { $this->_jsonOut(["error"=>$dv], 403); return; }
// If overwriting, enforce ownership for non-admins (unless folder owner)
$baseDir = rtrim(UPLOAD_DIR, '/\\');
$dir = ($folder === 'root') ? $baseDir : $baseDir . DIRECTORY_SEPARATOR . $folder;
$path = $dir . DIRECTORY_SEPARATOR . $fileName;
if (is_file($path)) {
$ignoreOwnership = $this->isAdmin($userPermissions)
|| ($userPermissions['bypassOwnership'] ?? (defined('DEFAULT_BYPASS_OWNERSHIP') ? DEFAULT_BYPASS_OWNERSHIP : false))
|| ACL::isOwner($username, $userPermissions, $folder)
|| $this->ownsFolderOrAncestor($folder, $username, $userPermissions);
if (!$ignoreOwnership) {
$violation = $this->enforceScopeAndOwnership($folder, [$fileName], $username, $userPermissions);
if ($violation) { $this->_jsonOut(["error"=>$violation], 403); return; }
}
}
$deny = ['php','phtml','phar','php3','php4','php5','php7','php8','pht','shtml','cgi','fcgi'];
$ext = strtolower(pathinfo($fileName, PATHINFO_EXTENSION));
if (in_array($ext, $deny, true)) {
$this->_jsonOut(['error' => 'Saving this file type is not allowed.'], 400); return;
}
$content = (string)($data['content'] ?? '');
$result = FileModel::saveFile($folder, $fileName, $content, $username);
if (!is_array($result)) throw new RuntimeException('FileModel::saveFile returned non-array');
if (isset($result['error'])) { $this->_jsonOut($result, 400); return; }
$this->_jsonOut($result);
} catch (Throwable $e) {
error_log('FileController::saveFile error: '.$e->getMessage().' @ '.$e->getFile().':'.$e->getLine());
$this->_jsonOut(['error' => 'Internal server error while saving file.'], 500);
} finally { $this->_jsonEnd(); }
}
/**
* Stream a file with proper HTTP Range support so HTML5 video/audio can seek.
*
* @param string $fullPath Absolute filesystem path
* @param string $downloadName Name shown in Content-Disposition
* @param string $mimeType MIME type (from FileModel::getDownloadInfo)
* @param bool $inline true => inline, false => attachment
*/
private function streamFileWithRange(string $fullPath, string $downloadName, string $mimeType, bool $inline): void
{
if (!is_file($fullPath) || !is_readable($fullPath)) {
http_response_code(404);
header('Content-Type: application/json; charset=utf-8');
echo json_encode(['error' => 'File not found']);
exit;
}
$size = (int)@filesize($fullPath);
$start = 0;
$end = $size > 0 ? $size - 1 : 0;
if ($size < 0) {
$size = 0;
$end = 0;
}
// Close session + disable output buffering for streaming
if (session_status() === PHP_SESSION_ACTIVE) {
@session_write_close();
}
if (function_exists('apache_setenv')) {
@apache_setenv('no-gzip', '1');
}
@ini_set('zlib.output_compression', '0');
@ini_set('output_buffering', 'off');
while (ob_get_level() > 0) {
@ob_end_clean();
}
$disposition = $inline ? 'inline' : 'attachment';
$mime = $mimeType ?: 'application/octet-stream';
header('X-Content-Type-Options: nosniff');
header('Accept-Ranges: bytes');
header("Content-Type: {$mime}");
header("Content-Disposition: {$disposition}; filename=\"" . basename($downloadName) . "\"");
// Handle HTTP Range header (single range)
$length = $size;
if (isset($_SERVER['HTTP_RANGE']) && preg_match('/bytes=\s*(\d*)-(\d*)/i', $_SERVER['HTTP_RANGE'], $m)) {
if ($m[1] !== '') {
$start = (int)$m[1];
}
if ($m[2] !== '') {
$end = (int)$m[2];
}
// clamp to file size
if ($start < 0) $start = 0;
if ($end < $start) $end = $start;
if ($end >= $size) $end = $size - 1;
$length = $end - $start + 1;
http_response_code(206);
header("Content-Range: bytes {$start}-{$end}/{$size}");
header("Content-Length: {$length}");
} else {
// no range => full file
http_response_code(200);
if ($size > 0) {
header("Content-Length: {$size}");
}
}
$fp = @fopen($fullPath, 'rb');
if ($fp === false) {
http_response_code(500);
header('Content-Type: application/json; charset=utf-8');
echo json_encode(['error' => 'Unable to open file.']);
exit;
}
if ($start > 0) {
@fseek($fp, $start);
}
$bytesToSend = $length;
$chunkSize = 8192;
while ($bytesToSend > 0 && !feof($fp)) {
$readSize = ($bytesToSend > $chunkSize) ? $chunkSize : $bytesToSend;
$buffer = fread($fp, $readSize);
if ($buffer === false) {
break;
}
echo $buffer;
flush();
$bytesToSend -= strlen($buffer);
if (connection_aborted()) {
break;
}
}
fclose($fp);
exit;
}
public function downloadFile()
{
if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
http_response_code(401);
header('Content-Type: application/json; charset=utf-8');
echo json_encode(["error" => "Unauthorized"]);
exit;
}
$file = isset($_GET['file']) ? basename((string)$_GET['file']) : '';
$folder = isset($_GET['folder']) ? trim((string)$_GET['folder']) : 'root';
$inlineParam = isset($_GET['inline']) && (string)$_GET['inline'] === '1';
if (!preg_match(REGEX_FILE_NAME, $file)) {
http_response_code(400);
header('Content-Type: application/json; charset=utf-8');
echo json_encode(["error" => "Invalid file name."]);
exit;
}
if ($folder !== 'root' && !preg_match(REGEX_FOLDER_NAME, $folder)) {
http_response_code(400);
header('Content-Type: application/json; charset=utf-8');
echo json_encode(["error" => "Invalid folder name."]);
exit;
}
$username = $_SESSION['username'] ?? '';
$perms = $this->loadPerms($username);
$ignoreOwnership = $this->isAdmin($perms)
|| ($perms['bypassOwnership'] ?? (defined('DEFAULT_BYPASS_OWNERSHIP') ? DEFAULT_BYPASS_OWNERSHIP : false));
// Treat ancestor-folder ownership as full view as well
$fullView = $ignoreOwnership
|| ACL::canRead($username, $perms, $folder)
|| $this->ownsFolderOrAncestor($folder, $username, $perms);
$ownGrant = !$fullView && ACL::hasGrant($username, $folder, 'read_own');
if (!$fullView && !$ownGrant) {
http_response_code(403);
header('Content-Type: application/json; charset=utf-8');
echo json_encode(["error" => "Forbidden: no view access to this folder."]);
exit;
}
// If own-only, enforce uploader==user
if ($ownGrant) {
$meta = $this->loadFolderMetadata($folder);
if (!isset($meta[$file]['uploader']) || strcasecmp((string)$meta[$file]['uploader'], $username) !== 0) {
http_response_code(403);
header('Content-Type: application/json; charset=utf-8');
echo json_encode(["error" => "Forbidden: you are not the owner of this file."]);
exit;
}
}
$downloadInfo = FileModel::getDownloadInfo($folder, $file);
if (isset($downloadInfo['error'])) {
http_response_code(in_array($downloadInfo['error'], ["File not found.", "Access forbidden."]) ? 404 : 400);
header('Content-Type: application/json; charset=utf-8');
echo json_encode(["error" => $downloadInfo['error']]);
exit;
}
$realFilePath = $downloadInfo['filePath'];
$mimeType = $downloadInfo['mimeType'];
// Decide inline vs attachment:
// - if ?inline=1 => always inline (used by filePreview.js)
// - else keep your old behavior: images inline, everything else attachment
$ext = strtolower(pathinfo($realFilePath, PATHINFO_EXTENSION));
$inlineImageTypes = ['jpg','jpeg','png','gif','bmp','webp','svg','ico'];
$inline = $inlineParam || in_array($ext, $inlineImageTypes, true);
// Stream with proper Range support for video/audio seeking
$this->streamFileWithRange($realFilePath, basename($realFilePath), $mimeType, $inline);
}
public function zipStatus()
{
if (!$this->_requireAuth()) { http_response_code(401); header('Content-Type: application/json'); echo json_encode(["error"=>"Unauthorized"]); return; }
$username = $_SESSION['username'] ?? '';
$token = isset($_GET['k']) ? preg_replace('/[^a-f0-9]/','',(string)$_GET['k']) : '';
if ($token === '' || strlen($token) < 8) { http_response_code(400); header('Content-Type: application/json'); echo json_encode(["error"=>"Bad token"]); return; }
$tokFile = rtrim((string)META_DIR, '/\\') . '/ziptmp/.tokens/' . $token . '.json';
if (!is_file($tokFile)) { http_response_code(404); header('Content-Type: application/json'); echo json_encode(["error"=>"Not found"]); return; }
$job = json_decode((string)@file_get_contents($tokFile), true) ?: [];
if (($job['user'] ?? '') !== $username) { http_response_code(403); header('Content-Type: application/json'); echo json_encode(["error"=>"Forbidden"]); return; }
$ready = (($job['status'] ?? '') === 'done') && !empty($job['zipPath']) && is_file($job['zipPath']);
$out = [
'status' => $job['status'] ?? 'unknown',
'error' => $job['error'] ?? null,
'ready' => $ready,
// progress (if present)
'pct' => $job['pct'] ?? null,
'filesDone' => $job['filesDone'] ?? null,
'filesTotal' => $job['filesTotal'] ?? null,
'bytesDone' => $job['bytesDone'] ?? null,
'bytesTotal' => $job['bytesTotal'] ?? null,
'current' => $job['current'] ?? null,
'phase' => $job['phase'] ?? null,
// timing (always include for UI)
'startedAt' => $job['startedAt'] ?? null,
'finalizeAt' => $job['finalizeAt'] ?? null,
];
if ($ready) {
$out['size'] = @filesize($job['zipPath']) ?: null;
$out['downloadUrl'] = '/api/file/downloadZipFile.php?k=' . urlencode($token);
}
header('Content-Type: application/json');
header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
header('Pragma: no-cache');
header('Expires: 0');
echo json_encode($out);
}
public function downloadZipFile()
{
if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) { http_response_code(401); echo "Unauthorized"; return; }
$username = $_SESSION['username'] ?? '';
$token = isset($_GET['k']) ? preg_replace('/[^a-f0-9]/','',(string)$_GET['k']) : '';
if ($token === '' || strlen($token) < 8) { http_response_code(400); echo "Bad token"; return; }
$tokFile = rtrim((string)META_DIR, '/\\') . '/ziptmp/.tokens/' . $token . '.json';
if (!is_file($tokFile)) { http_response_code(404); echo "Not found"; return; }
$job = json_decode((string)@file_get_contents($tokFile), true) ?: [];
@unlink($tokFile); // one-shot token
if (($job['user'] ?? '') !== $username) { http_response_code(403); echo "Forbidden"; return; }
$zip = (string)($job['zipPath'] ?? '');
$zipReal = realpath($zip);
$root = realpath(rtrim((string)META_DIR, '/\\') . '/ziptmp');
if (!$zipReal || !$root || strpos($zipReal, $root) !== 0 || !is_file($zipReal)) { http_response_code(404); echo "Not found"; return; }
@session_write_close();
@set_time_limit(0);
@ignore_user_abort(true);
if (function_exists('apache_setenv')) @apache_setenv('no-gzip','1');
@ini_set('zlib.output_compression','0');
@ini_set('output_buffering','off');
while (ob_get_level()>0) @ob_end_clean();
@clearstatcache(true, $zipReal);
$name = isset($_GET['name']) ? preg_replace('/[^A-Za-z0-9._-]/','_', (string)$_GET['name']) : 'files.zip';
if ($name === '' || str_ends_with($name,'.')) $name = 'files.zip';
$size = (int)@filesize($zipReal);
header('X-Accel-Buffering: no');
header('X-Content-Type-Options: nosniff');
header('Content-Type: application/zip');
header('Content-Disposition: attachment; filename="'.$name.'"');
if ($size>0) header('Content-Length: '.$size);
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Pragma: no-cache');
readfile($zipReal);
@unlink($zipReal);
}
public function downloadZip()
{
try {
if (!$this->_checkCsrf()) { $this->_jsonOut(["error"=>"Bad CSRF"],400); return; }
if (!$this->_requireAuth()) { $this->_jsonOut(["error"=>"Unauthorized"],401); return; }
$data = $this->_readJsonBody();
if (!is_array($data) || !isset($data['folder'], $data['files']) || !is_array($data['files'])) {
$this->_jsonOut(["error" => "Invalid input."], 400); return;
}
$folder = $this->_normalizeFolder($data['folder']);
$files = $data['files'];
if (!$this->_validFolder($folder)) { $this->_jsonOut(["error"=>"Invalid folder name."], 400); return; }
$username = $_SESSION['username'] ?? '';
$perms = $this->loadPerms($username);
// Optional zip gate by account flag
if (!$this->isAdmin($perms) && !empty($perms['disableZip'])) {
$this->_jsonOut(["error" => "ZIP downloads are not allowed for your account."], 403); return;
}
$ignoreOwnership = $this->isAdmin($perms)
|| ($perms['bypassOwnership'] ?? (defined('DEFAULT_BYPASS_OWNERSHIP') ? DEFAULT_BYPASS_OWNERSHIP : false));
// Ancestor-owner counts as full view
$fullView = $ignoreOwnership
|| ACL::canRead($username, $perms, $folder)
|| $this->ownsFolderOrAncestor($folder, $username, $perms);
$ownOnly = !$fullView && ACL::hasGrant($username, $folder, 'read_own');
if (!$fullView && !$ownOnly) { $this->_jsonOut(["error" => "Forbidden: no view access to this folder."], 403); return; }
// If own-only, ensure all files are owned by the user
if ($ownOnly) {
$meta = $this->loadFolderMetadata($folder);
foreach ($files as $f) {
$bn = basename((string)$f);
if (!isset($meta[$bn]['uploader']) || strcasecmp((string)$meta[$bn]['uploader'], $username) !== 0) {
$this->_jsonOut(["error" => "Forbidden: you are not the owner of '{$bn}'."], 403); return;
}
}
}
$root = rtrim((string)META_DIR, '/\\') . DIRECTORY_SEPARATOR . 'ziptmp';
$tokDir = $root . DIRECTORY_SEPARATOR . '.tokens';
$logDir = $root . DIRECTORY_SEPARATOR . '.logs';
if (!is_dir($tokDir)) @mkdir($tokDir, 0700, true);
if (!is_dir($logDir)) @mkdir($logDir, 0700, true);
@chmod($tokDir, 0700);
@chmod($logDir, 0700);
if (!is_dir($tokDir) || !is_writable($tokDir)) {
$this->_jsonOut(["error"=>"ZIP token dir not writable."],500); return;
}
// Light janitor: purge old tokens/logs > 6h (best-effort)
$now = time();
foreach ((glob($tokDir . DIRECTORY_SEPARATOR . '*.json') ?: []) as $tf) {
if (is_file($tf) && ($now - (int)@filemtime($tf)) > 21600) { @unlink($tf); }
}
foreach ((glob($logDir . DIRECTORY_SEPARATOR . 'WORKER-*.log') ?: []) as $lf) {
if (is_file($lf) && ($now - (int)@filemtime($lf)) > 21600) { @unlink($lf); }
}
// Per-user and global caps (simple anti-DoS)
$perUserCap = 2; // tweak if desired
$globalCap = 8; // tweak if desired
$tokens = glob($tokDir . DIRECTORY_SEPARATOR . '*.json') ?: [];
$mine = 0; $all = 0;
foreach ($tokens as $tf) {
$job = json_decode((string)@file_get_contents($tf), true) ?: [];
$st = $job['status'] ?? 'unknown';
if ($st === 'queued' || $st === 'working' || $st === 'finalizing') {
$all++;
if (($job['user'] ?? '') === $username) $mine++;
}
}
if ($mine >= $perUserCap) { $this->_jsonOut(["error"=>"You already have ZIP jobs running. Try again shortly."], 429); return; }
if ($all >= $globalCap) { $this->_jsonOut(["error"=>"ZIP queue is busy. Try again shortly."], 429); return; }
// Create job token
$token = bin2hex(random_bytes(16));
$tokFile = $tokDir . DIRECTORY_SEPARATOR . $token . '.json';
$job = [
'user' => $username,
'folder' => $folder,
'files' => array_values($files),
'status' => 'queued',
'ctime' => time(),
'startedAt' => null,
'finalizeAt' => null,
'zipPath' => null,
'error' => null
];
if (file_put_contents($tokFile, json_encode($job, JSON_PRETTY_PRINT), LOCK_EX) === false) {
$this->_jsonOut(["error"=>"Failed to create zip job."],500); return;
}
// Robust spawn (detect php CLI, log, record PID)
$spawn = $this->spawnZipWorker($token, $tokFile, $logDir);
if (!$spawn['ok']) {
$job['status'] = 'error';
$job['error'] = 'Spawn failed: '.$spawn['error'];
@file_put_contents($tokFile, json_encode($job, JSON_PRETTY_PRINT), LOCK_EX);
$this->_jsonOut(["error"=>"Failed to enqueue ZIP: ".$spawn['error']], 500);
return;
}
$this->_jsonOut([
'ok' => true,
'token' => $token,
'status' => 'queued',
'statusUrl' => '/api/file/zipStatus.php?k=' . urlencode($token),
'downloadUrl' => '/api/file/downloadZipFile.php?k=' . urlencode($token)
]);
} catch (Throwable $e) {
error_log('FileController::downloadZip enqueue error: '.$e->getMessage().' @ '.$e->getFile().':'.$e->getLine());
$this->_jsonOut(['error' => 'Internal error while queuing ZIP.'], 500);
}
}
public function extractZip()
{
$this->_jsonStart();
try {
if (!$this->_checkCsrf()) return;
if (!$this->_requireAuth()) return;
$data = $this->_readJsonBody();
if (!is_array($data) || !isset($data['folder'], $data['files']) || !is_array($data['files'])) {
$this->_jsonOut(["error" => "Invalid input."], 400); return;
}
$folder = $this->_normalizeFolder($data['folder']);
if (!$this->_validFolder($folder)) { $this->_jsonOut(["error"=>"Invalid folder name."], 400); return; }
$username = $_SESSION['username'] ?? '';
$perms = $this->loadPerms($username);
// must be able to write into target folder (or be ancestor-owner)
if (!(ACL::canExtract($username, $perms, $folder) || $this->ownsFolderOrAncestor($folder, $username, $perms))) {
$this->_jsonOut(["error"=>"Forbidden: no full write access to destination"], 403); return;
}
// Folder scope: write
$dv = $this->enforceFolderScope($folder, $username, $perms, 'extract');
if ($dv) { $this->_jsonOut(["error"=>$dv], 403); return; }
$result = FileModel::extractZipArchive($folder, $data['files']);
$this->_jsonOut($result);
} catch (Throwable $e) {
error_log('FileController::extractZip error: '.$e->getMessage().' @ '.$e->getFile().':'.$e->getLine());
$this->_jsonOut(['error' => 'Internal server error while extracting ZIP.'], 500);
} finally { $this->_jsonEnd(); }
}
public function shareFile()
{
$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);
header('Content-Type: application/json');
echo json_encode(["error" => "Missing token."]);
exit;
}
$record = FileModel::getShareRecord($token);
if (!$record) {
http_response_code(404);
header('Content-Type: application/json');
echo json_encode(["error" => "Share link not found."]);
exit;
}
if (time() > $record['expires']) {
http_response_code(403);
header('Content-Type: application/json');
echo json_encode(["error" => "This link has expired."]);
exit;
}
if (!empty($record['password']) && empty($providedPass)) {
header("Content-Type: text/html; charset=utf-8");
?>
<!DOCTYPE html>
<html>
<head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><title>Enter Password</title></head>
<body>
<h2>This file is protected by a password.</h2>
<form method="get" action="/api/file/share.php">
<input type="hidden" name="token" value="<?php echo htmlspecialchars($token, ENT_QUOTES, 'UTF-8'); ?>">
<label for="pass">Password:</label>
<input type="password" name="pass" id="pass" required>
<button type="submit">Submit</button>
</form>
</body>
</html>
<?php
exit;
}
if (!empty($record['password'])) {
if (!password_verify($providedPass, $record['password'])) {
http_response_code(403);
header('Content-Type: application/json');
echo json_encode(["error" => "Invalid password."]);
exit;
}
}
$folder = trim($record['folder'], "/\\ ");
$file = $record['file'];
$filePath = rtrim(UPLOAD_DIR, '/\\') . DIRECTORY_SEPARATOR;
if (!empty($folder) && strtolower($folder) !== 'root') {
$filePath .= $folder . DIRECTORY_SEPARATOR;
}
$filePath .= $file;
$realFilePath = realpath($filePath);
$uploadDirReal = realpath(UPLOAD_DIR);
if ($realFilePath === false || strpos($realFilePath, $uploadDirReal) !== 0) {
http_response_code(404);
header('Content-Type: application/json');
echo json_encode(["error" => "File not found."]);
exit;
}
if (!file_exists($realFilePath)) {
http_response_code(404);
header('Content-Type: application/json');
echo json_encode(["error" => "File not found."]);
exit;
}
$mimeType = mime_content_type($realFilePath);
header("Content-Type: " . $mimeType);
$ext = strtolower(pathinfo($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($realFilePath) . '"');
}
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Pragma: no-cache");
header('Content-Length: ' . filesize($realFilePath));
readfile($realFilePath);
exit;
}
public function createShareLink()
{
$this->_jsonStart();
try {
if (!$this->_requireAuth()) return;
$input = $this->_readJsonBody();
if (!$input) { $this->_jsonOut(["error" => "Invalid input."], 400); return; }
$folder = $this->_normalizeFolder($input['folder'] ?? '');
$file = basename((string)($input['file'] ?? ''));
$value = isset($input['expirationValue']) ? (int)$input['expirationValue'] : 60;
$unit = $input['expirationUnit'] ?? 'minutes';
$password = (string)($input['password'] ?? '');
if (!$this->_validFolder($folder)) { $this->_jsonOut(["error"=>"Invalid folder name."], 400); return; }
if (!$this->_validFile($file)) { $this->_jsonOut(["error"=>"Invalid file name."], 400); return; }
$username = $_SESSION['username'] ?? '';
$userPermissions = $this->loadPerms($username);
// Need share (or ancestor-owner)
if (!(ACL::canShareFile($username, $userPermissions, $folder) || $this->ownsFolderOrAncestor($folder, $username, $userPermissions))) {
$this->_jsonOut(["error"=>"Forbidden: no share access"], 403); return;
}
// Folder scope: share
$sv = $this->enforceFolderScope($folder, $username, $userPermissions, 'share');
if ($sv) { $this->_jsonOut(["error"=>$sv], 403); return; }
// Ownership unless admin/folder-owner
$ignoreOwnership = $this->isAdmin($userPermissions)
|| ($userPermissions['bypassOwnership'] ?? (defined('DEFAULT_BYPASS_OWNERSHIP') ? DEFAULT_BYPASS_OWNERSHIP : false))
|| ACL::isOwner($username, $userPermissions, $folder)
|| $this->ownsFolderOrAncestor($folder, $username, $userPermissions);
if (!$ignoreOwnership) {
$meta = $this->loadFolderMetadata($folder);
if (!isset($meta[$file]['uploader']) || strcasecmp((string)$meta[$file]['uploader'], $username) !== 0) {
$this->_jsonOut(["error" => "Forbidden: you are not the owner of this file."], 403); return;
}
}
switch ($unit) {
case 'seconds': $expirationSeconds = $value; break;
case 'hours': $expirationSeconds = $value * 3600; break;
case 'days': $expirationSeconds = $value * 86400; break;
case 'minutes':
default: $expirationSeconds = $value * 60; break;
}
$result = FileModel::createShareLink($folder, $file, $expirationSeconds, $password);
$this->_jsonOut($result);
} catch (Throwable $e) {
error_log('FileController::createShareLink error: '.$e->getMessage().' @ '.$e->getFile().':'.$e->getLine());
$this->_jsonOut(['error' => 'Internal server error while creating share link.'], 500);
} finally { $this->_jsonEnd(); }
}
public function getTrashItems()
{
$this->_jsonStart();
try {
if (!$this->_requireAuth()) return;
$perms = $this->loadPerms($_SESSION['username'] ?? '');
if (!$this->isAdmin($perms)) { $this->_jsonOut(['error'=>'Admin only'], 403); return; }
$trashItems = FileModel::getTrashItems();
$this->_jsonOut($trashItems);
} catch (Throwable $e) {
error_log('FileController::getTrashItems error: '.$e->getMessage());
$this->_jsonOut(['error' => 'Internal server error while fetching trash.'], 500);
} finally { $this->_jsonEnd(); }
}
public function restoreFiles()
{
$this->_jsonStart();
try {
if (!$this->_checkCsrf()) return;
if (!$this->_requireAuth()) return;
$perms = $this->loadPerms($_SESSION['username'] ?? '');
if (!$this->isAdmin($perms)) { $this->_jsonOut(['error'=>'Admin only'], 403); return; }
$data = $this->_readJsonBody();
if (!isset($data['files']) || !is_array($data['files'])) {
$this->_jsonOut(["error" => "No file or folder identifiers provided"], 400); return;
}
$result = FileModel::restoreFiles($data['files']);
$this->_jsonOut($result);
} catch (Throwable $e) {
error_log('FileController::restoreFiles error: '.$e->getMessage());
$this->_jsonOut(['error' => 'Internal server error while restoring files.'], 500);
} finally { $this->_jsonEnd(); }
}
public function deleteTrashFiles()
{
$this->_jsonStart();
try {
if (!$this->_checkCsrf()) return;
if (!$this->_requireAuth()) return;
$perms = $this->loadPerms($_SESSION['username'] ?? '');
if (!$this->isAdmin($perms)) { $this->_jsonOut(['error'=>'Admin only'], 403); return; }
$data = $this->_readJsonBody();
if (!$data) { $this->_jsonOut(["error" => "Invalid input"], 400); return; }
$filesToDelete = [];
if (!empty($data['deleteAll'])) {
$trashDir = rtrim(TRASH_DIR, '/\\') . DIRECTORY_SEPARATOR;
$shareFile = $trashDir . "trash.json";
if (file_exists($shareFile)) {
$tmp = json_decode(file_get_contents($shareFile), true);
if (is_array($tmp)) {
foreach ($tmp as $item) {
if (!empty($item['trashName'])) $filesToDelete[] = $item['trashName'];
}
}
}
} elseif (isset($data['files']) && is_array($data['files'])) {
$filesToDelete = $data['files'];
} else {
$this->_jsonOut(["error" => "No trash file identifiers provided"], 400); return;
}
$result = FileModel::deleteTrashFiles($filesToDelete);
if (!empty($result['deleted'])) {
$msg = "Trash item".(count($result['deleted']) === 1 ? "" : "s")." deleted: ".implode(", ", $result['deleted']);
$this->_jsonOut(["success"=>$msg]);
} elseif (!empty($result['error'])) {
$this->_jsonOut(["error"=>$result['error']], 400);
} else {
$this->_jsonOut(["success"=>"No items to delete."]);
}
} catch (Throwable $e) {
error_log('FileController::deleteTrashFiles error: '.$e->getMessage());
$this->_jsonOut(['error' => 'Internal server error while deleting trash files.'], 500);
} finally { $this->_jsonEnd(); }
}
public function getFileTags(): void
{
header('Content-Type: application/json; charset=utf-8');
$tags = FileModel::getFileTags();
echo json_encode($tags);
exit;
}
public function saveFileTag(): void
{
$this->_jsonStart();
try {
if (!$this->_checkCsrf()) return;
if (!$this->_requireAuth()) return;
$data = $this->_readJsonBody();
if (!$data) { $this->_jsonOut(["error" => "No data received"], 400); return; }
$file = trim((string)($data['file'] ?? ''));
$folder = $this->_normalizeFolder($data['folder'] ?? 'root');
$tags = $data['tags'] ?? [];
$deleteGlobal= !empty($data['deleteGlobal']);
$tagToDelete = isset($data['tagToDelete']) ? trim((string)$data['tagToDelete']) : null;
if ($file === '' || !$this->_validFile($file)) { $this->_jsonOut(["error"=>"Invalid file."], 400); return; }
if (!$this->_validFolder($folder)) { $this->_jsonOut(["error"=>"Invalid folder name."], 400); return; }
$username = $_SESSION['username'] ?? '';
$userPermissions = $this->loadPerms($username);
// Need write (or ancestor-owner)
if (!(ACL::canWrite($username, $userPermissions, $folder) || $this->ownsFolderOrAncestor($folder, $username, $userPermissions))) {
$this->_jsonOut(["error"=>"Forbidden: no full write access"], 403); return;
}
// Folder scope: write
$dv = $this->enforceFolderScope($folder, $username, $userPermissions, 'write');
if ($dv) { $this->_jsonOut(["error"=>$dv], 403); return; }
// Ownership unless admin/folder-owner
$ignoreOwnership = $this->isAdmin($userPermissions)
|| ($userPermissions['bypassOwnership'] ?? (defined('DEFAULT_BYPASS_OWNERSHIP') ? DEFAULT_BYPASS_OWNERSHIP : false))
|| ACL::isOwner($username, $userPermissions, $folder)
|| $this->ownsFolderOrAncestor($folder, $username, $userPermissions);
if (!$ignoreOwnership) {
$meta = $this->loadFolderMetadata($folder);
if (!isset($meta[$file]['uploader']) || strcasecmp((string)$meta[$file]['uploader'], $username) !== 0) {
$this->_jsonOut(["error" => "Forbidden: you are not the owner of this file."], 403); return;
}
}
$result = FileModel::saveFileTag($folder, $file, $tags, $deleteGlobal, $tagToDelete);
$this->_jsonOut($result);
} catch (Throwable $e) {
error_log('FileController::saveFileTag error: '.$e->getMessage().' @ '.$e->getFile().':'.$e->getLine());
$this->_jsonOut(['error' => 'Internal server error while saving tags.'], 500);
} finally { $this->_jsonEnd(); }
}
public function getFileList(): void
{
if (session_status() !== PHP_SESSION_ACTIVE) session_start();
header('Content-Type: application/json; charset=utf-8');
// convert warnings/notices to exceptions for cleaner error handling
set_error_handler(function ($severity, $message, $file, $line) {
if (!(error_reporting() & $severity)) return;
throw new ErrorException($message, 0, $severity, $file, $line);
});
try {
if (empty($_SESSION['username'])) {
http_response_code(401);
echo json_encode(['error' => 'Unauthorized']);
return;
}
if (!is_dir(META_DIR)) @mkdir(META_DIR, 0775, true);
if (!is_dir(UPLOAD_DIR)) {
http_response_code(500);
echo json_encode(['error' => 'Uploads directory not found.']);
return;
}
// --- inputs ---
$folder = isset($_GET['folder']) ? trim((string)$_GET['folder']) : 'root';
// Validate folder path: allow "root" or nested segments that each match REGEX_FOLDER_NAME
if ($folder !== 'root') {
$parts = array_filter(explode('/', trim($folder, "/\\ ")));
if (empty($parts)) {
http_response_code(400);
echo json_encode(['error' => 'Invalid folder name.']);
return;
}
foreach ($parts as $seg) {
if (!preg_match(REGEX_FOLDER_NAME, $seg)) {
http_response_code(400);
echo json_encode(['error' => 'Invalid folder name.']);
return;
}
}
$folder = implode('/', $parts);
}
// ---- Folder-level view checks (full vs own-only) ----
$username = $_SESSION['username'] ?? '';
$perms = $this->loadPerms($username);
// Full view if read OR ancestor owner
$fullView = ACL::canRead($username, $perms, $folder) || $this->ownsFolderOrAncestor($folder, $username, $perms);
$ownOnlyGrant = ACL::hasGrant($username, $folder, 'read_own');
// Special-case: keep Root visible but inert if user lacks any visibility there.
if ($folder === 'root' && !$fullView && !$ownOnlyGrant) {
echo json_encode([
'success' => true,
'folder' => 'root',
'files' => [],
// Optional hint the UI can use to show a soft message / disable actions:
'uiHints' => [
'noAccessRoot' => true,
'message' => "You don't have access to Root. Select a folder you have access to."
],
], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
return;
}
// Non-root: still enforce 403 if no visibility
if ($folder !== 'root' && !$fullView && !$ownOnlyGrant) {
http_response_code(403);
echo json_encode(['error' => 'Forbidden: no view access to this folder.']);
return;
}
// Fetch the list
$result = FileModel::getFileList($folder);
if ($result === false || $result === null) {
http_response_code(500);
echo json_encode(['error' => 'File model failed.']);
return;
}
if (!is_array($result)) {
throw new RuntimeException('FileModel::getFileList returned a non-array.');
}
if (isset($result['error'])) {
http_response_code(400);
echo json_encode($result);
return;
}
// ---- Apply own-only filter if user does NOT have full view ----
if (!$fullView && $ownOnlyGrant && isset($result['files'])) {
$files = $result['files'];
// If files keyed by filename (assoc array)
if (is_array($files) && array_keys($files) !== range(0, count($files) - 1)) {
$filtered = [];
foreach ($files as $name => $meta) {
if (isset($meta['uploader']) && strcasecmp((string)$meta['uploader'], $username) === 0) {
$filtered[$name] = $meta;
}
}
$result['files'] = $filtered;
}
// If files is a numeric array of metadata items
else if (is_array($files)) {
$result['files'] = array_values(array_filter(
$files,
function ($f) use ($username) {
return isset($f['uploader']) && strcasecmp((string)$f['uploader'], $username) === 0;
}
));
}
}
echo json_encode($result, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
} catch (Throwable $e) {
error_log('FileController::getFileList error: '.$e->getMessage().' in '.$e->getFile().':'.$e->getLine());
http_response_code(500);
echo json_encode(['error' => 'Internal server error while listing files.']);
} finally {
restore_error_handler();
}
}
public function getShareLinks()
{
header('Content-Type: application/json');
$shareFile = FileModel::getAllShareLinks();
echo json_encode($shareFile, JSON_PRETTY_PRINT);
}
public function getAllShareLinks(): void
{
header('Content-Type: application/json');
$shareFile = META_DIR . 'share_links.json';
$links = file_exists($shareFile)
? json_decode(file_get_contents($shareFile), true) ?? []
: [];
$now = time();
$cleaned = [];
foreach ($links as $token => $record) {
if (!empty($record['expires']) && $record['expires'] < $now) continue;
$cleaned[$token] = $record;
}
if (count($cleaned) !== count($links)) {
file_put_contents($shareFile, json_encode($cleaned, JSON_PRETTY_PRINT));
}
echo json_encode($cleaned);
}
public function deleteShareLink()
{
header('Content-Type: application/json');
$token = $_POST['token'] ?? '';
if (!$token) { echo json_encode(['success' => false, 'error' => 'No token provided']); return; }
$deleted = FileModel::deleteShareLink($token);
echo json_encode($deleted ? ['success' => true] : ['success' => false, 'error' => 'Not found']);
}
public function createFile(): void
{
$this->_jsonStart();
try {
if (!$this->_requireAuth()) return;
$body = $this->_readJsonBody();
$folder = $this->_normalizeFolder($body['folder'] ?? 'root');
$filename = basename(trim((string)($body['name'] ?? '')));
if (!$this->_validFolder($folder)) { $this->_jsonOut(["error" => "Invalid folder name."], 400); return; }
if (!$this->_validFile($filename)) { $this->_jsonOut(["error" => "Invalid file name."], 400); return; }
$username = $_SESSION['username'] ?? '';
$userPermissions = $this->loadPerms($username);
// Need write (or ancestor-owner)
if (!(ACL::canCreate($username, $userPermissions, $folder) || $this->ownsFolderOrAncestor($folder, $username, $userPermissions))) {
$this->_jsonOut(["error"=>"Forbidden: no full write access"], 403); return;
}
// Folder scope: write
$dv = $this->enforceFolderScope($folder, $username, $userPermissions, 'create');
if ($dv) { $this->_jsonOut(["error"=>$dv], 403); return; }
$result = FileModel::createFile($folder, $filename, $username);
if (empty($result['success'])) {
$this->_jsonOut(['success'=>false,'error'=>$result['error'] ?? 'Failed to create file'], $result['code'] ?? 400);
return;
}
$this->_jsonOut(['success'=>true]);
} catch (Throwable $e) {
error_log('FileController::createFile error: '.$e->getMessage().' @ '.$e->getFile().':'.$e->getLine());
$this->_jsonOut(['error' => 'Internal server error while creating file.'], 500);
} finally { $this->_jsonEnd(); }
}
}