improvements and new features see changelog
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@@ -5,7 +5,6 @@ header('Content-Type: application/json');
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// --- CSRF Protection ---
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$headers = array_change_key_case(getallheaders(), CASE_LOWER);
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$receivedToken = isset($headers['x-csrf-token']) ? trim($headers['x-csrf-token']) : '';
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if ($receivedToken !== $_SESSION['csrf_token']) {
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echo json_encode(["error" => "Invalid CSRF token"]);
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http_response_code(403);
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@@ -58,54 +57,82 @@ $destDir = ($destinationFolder === 'root')
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? $baseDir . DIRECTORY_SEPARATOR
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: $baseDir . DIRECTORY_SEPARATOR . $destinationFolder . DIRECTORY_SEPARATOR;
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// Load metadata.
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$metadataFile = META_DIR . META_FILE;
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$metadata = file_exists($metadataFile) ? json_decode(file_get_contents($metadataFile), true) : [];
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// Ensure destination directory exists.
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if (!is_dir($destDir)) {
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if (!mkdir($destDir, 0775, true)) {
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echo json_encode(["error" => "Could not create destination folder"]);
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exit;
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// Helper: Generate the metadata file path for a given folder.
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function getMetadataFilePath($folder) {
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if (strtolower($folder) === 'root' || $folder === '') {
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return META_DIR . "root_metadata.json";
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}
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return META_DIR . str_replace(['/', '\\', ' '], '-', $folder) . '_metadata.json';
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}
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// Helper: Generate a unique file name if a file with the same name exists.
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function getUniqueFileName($destDir, $fileName) {
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$fullPath = $destDir . $fileName;
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clearstatcache(true, $fullPath);
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if (!file_exists($fullPath)) {
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return $fileName;
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}
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$basename = pathinfo($fileName, PATHINFO_FILENAME);
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$extension = pathinfo($fileName, PATHINFO_EXTENSION);
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$counter = 1;
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do {
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$newName = $basename . " (" . $counter . ")" . ($extension ? "." . $extension : "");
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$newFullPath = $destDir . $newName;
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clearstatcache(true, $newFullPath);
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$counter++;
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} while (file_exists($destDir . $newName));
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return $newName;
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}
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// Load source and destination metadata.
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$srcMetaFile = getMetadataFilePath($sourceFolder);
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$destMetaFile = getMetadataFilePath($destinationFolder);
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$srcMetadata = file_exists($srcMetaFile) ? json_decode(file_get_contents($srcMetaFile), true) : [];
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$destMetadata = file_exists($destMetaFile) ? json_decode(file_get_contents($destMetaFile), true) : [];
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$errors = [];
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// Define a safe file name pattern: letters, numbers, underscores, dashes, dots, and spaces.
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$safeFileNamePattern = '/^[A-Za-z0-9_\-\. ]+$/';
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// Define a safe file name pattern: letters, numbers, underscores, dashes, dots, parentheses, and spaces.
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$safeFileNamePattern = '/^[A-Za-z0-9_\-\.\(\) ]+$/';
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foreach ($files as $fileName) {
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$basename = basename(trim($fileName));
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// Validate the file name.
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// Save the original name for metadata lookup.
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$originalName = basename(trim($fileName));
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$basename = $originalName;
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if (!preg_match($safeFileNamePattern, $basename)) {
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$errors[] = "$basename has an invalid name.";
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continue;
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}
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$srcPath = $sourceDir . $basename;
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$srcPath = $sourceDir . $originalName;
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$destPath = $destDir . $basename;
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// Build metadata keys.
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$srcKey = ($sourceFolder === 'root') ? $basename : $sourceFolder . "/" . $basename;
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$destKey = ($destinationFolder === 'root') ? $basename : $destinationFolder . "/" . $basename;
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clearstatcache();
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if (!file_exists($srcPath)) {
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$errors[] = "$basename does not exist in source.";
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$errors[] = "$originalName does not exist in source.";
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continue;
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}
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if (file_exists($destPath)) {
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$uniqueName = getUniqueFileName($destDir, $basename);
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$basename = $uniqueName; // update the file name for metadata and destination path
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$destPath = $destDir . $uniqueName;
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}
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if (!copy($srcPath, $destPath)) {
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$errors[] = "Failed to copy $basename";
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continue;
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}
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// Update metadata: if source key exists, duplicate it to destination key.
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if (isset($metadata[$srcKey])) {
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$metadata[$destKey] = $metadata[$srcKey];
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// Update destination metadata: if there's metadata for the original file in source, add it under the new name.
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if (isset($srcMetadata[$originalName])) {
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$destMetadata[$basename] = $srcMetadata[$originalName];
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}
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}
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if (!file_put_contents($metadataFile, json_encode($metadata, JSON_PRETTY_PRINT))) {
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$errors[] = "Failed to update metadata.";
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if (file_put_contents($destMetaFile, json_encode($destMetadata, JSON_PRETTY_PRINT)) === false) {
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$errors[] = "Failed to update destination metadata.";
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}
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if (empty($errors)) {
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