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Resumable.js Integration (pause, resume, retry & chunked uploads)

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This commit is contained in:
Ryan
2025-03-23 02:13:10 -04:00
committed by GitHub
parent 6d588eb143
commit a9c7bb6493
9 changed files with 776 additions and 257 deletions
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279
upload.php
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@@ -12,122 +12,225 @@ 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"]);
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($baseUploadDir, 0775, true);
// Check if this is a chunked upload (Resumable.js sends "resumableChunkNumber").
if (isset($_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'];
$folder = isset($_POST['folder']) ? trim($_POST['folder']) : 'root';
if ($folder !== 'root' && !preg_match('/^[A-Za-z0-9_\- \/]+$/', $folder)) {
echo json_encode(["error" => "Invalid folder name"]);
exit;
}
} else {
if (!is_dir($baseUploadDir)) {
mkdir($baseUploadDir, 0775, 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($baseUploadDir, 0775, true);
}
} else {
if (!is_dir($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]);
// 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;
}
// --- Minimal Folder/Subfolder Logic ---
$relativePath = '';
if (isset($_POST['relativePath'])) {
if (is_array($_POST['relativePath'])) {
$relativePath = $_POST['relativePath'][$index] ?? '';
} else {
$relativePath = $_POST['relativePath'];
// Check if all chunks have been uploaded.
$uploadedChunks = glob($tempDir . "*");
if (count($uploadedChunks) >= $totalChunks) {
// All chunks uploaded. Merge chunks.
$targetPath = $baseUploadDir . $resumableFilename;
if (!$out = fopen($targetPath, "wb")) {
echo json_encode(["error" => "Failed to open target file for writing"]);
exit;
}
}
// 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, $folderPath) . DIRECTORY_SEPARATOR;
// Concatenate each chunk in order.
for ($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);
}
// 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], $targetPath)) {
// Generate a unique metadata file name based on the folder path.
// Replace slashes, backslashes, and spaces with dashes.
fclose($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 . $metadataFileName;
// Load metadata for this folder if not already loaded.
if (!isset($metadataCollection[$metadataKey])) {
if (file_exists($metadataFile)) {
$metadataCollection[$metadataKey] = json_decode(file_get_contents($metadataFile), true);
} else {
$metadataCollection[$metadataKey] = [];
$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 = [];
}
$metadataChanged[$metadataKey] = false;
} else {
$metadataCollection = [];
}
// Add metadata for this file if not already present.
if (!isset($metadataCollection[$metadataKey][$safeFileName])) {
$uploadedDate = date(DATE_TIME_FORMAT);
$uploader = $_SESSION['username'] ?? "Unknown";
$metadataCollection[$metadataKey][$safeFileName] = [
if (!isset($metadataCollection[$resumableFilename])) {
$metadataCollection[$resumableFilename] = [
"uploaded" => $uploadedDate,
"uploader" => $uploader
];
$metadataChanged[$metadataKey] = true;
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 {
echo json_encode(["error" => "Error uploading file"]);
// Chunk successfully uploaded, but more chunks remain.
echo json_encode(["status" => "chunk uploaded"]);
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));
} 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"]);
?>