/**
* This function does the save-work for the documents.
* It handles the uploaded file and adds the properties to the database
* If unzip=1 and the file is a zipfile, it is extracted
* If we decide to save ALL kinds of documents in one database,
* we could extend this with a $type='document', 'scormdocument',...
*
* @param array $courseInfo
* @param array $uploadedFile ($_FILES)
* array(
* 'name' => 'picture.jpg',
* 'tmp_name' => '...', // absolute path
* );
* @param string $documentDir Example: /var/www/chamilo/courses/ABC/document
* @param string $uploadPath Example: /folder1/folder2/
* @param int $userId
* @param int $groupId, 0 for everybody
* @param int $toUserId, NULL for everybody
* @param int $unzip 1/0
* @param string $whatIfFileExists overwrite, rename or warn if exists (default)
* @param boolean $output Optional output parameter.
* @param bool $onlyUploadFile
* @param string $comment
* @param int $sessionId
*
* So far only use for unzip_uploaded_document function.
* If no output wanted on success, set to false.
* @param string $comment
* @return string path of the saved file
*/
function handle_uploaded_document($courseInfo, $uploadedFile, $documentDir, $uploadPath, $userId, $groupId = 0, $toUserId = null, $unzip = 0, $whatIfFileExists = '', $output = true, $onlyUploadFile = false, $comment = null, $sessionId = null)
{
if (!$userId) {
return false;
}
$userInfo = api_get_user_info();
$uploadedFile['name'] = stripslashes($uploadedFile['name']);
// Add extension to files without one (if possible)
$uploadedFile['name'] = add_ext_on_mime($uploadedFile['name'], $uploadedFile['type']);
if (empty($sessionId)) {
$sessionId = api_get_session_id();
} else {
$sessionId = intval($sessionId);
}
// Just in case process_uploaded_file is not called
$maxSpace = DocumentManager::get_course_quota();
// Check if there is enough space to save the file
if (!DocumentManager::enough_space($uploadedFile['size'], $maxSpace)) {
if ($output) {
Display::display_error_message(get_lang('UplNotEnoughSpace'));
}
return false;
}
// If the want to unzip, check if the file has a .zip (or ZIP,Zip,ZiP,...) extension
if ($unzip == 1 && preg_match('/.zip$/', strtolower($uploadedFile['name']))) {
return unzip_uploaded_document($courseInfo, $userInfo, $uploadedFile, $uploadPath, $documentDir, $maxSpace, $sessionId, $groupId, $output);
} elseif ($unzip == 1 && !preg_match('/.zip$/', strtolower($uploadedFile['name']))) {
// We can only unzip ZIP files (no gz, tar,...)
if ($output) {
Display::display_error_message(get_lang('UplNotAZip') . " " . get_lang('PleaseTryAgain'));
}
return false;
} else {
// Clean up the name, only ASCII characters should stay. (and strict)
$cleanName = api_replace_dangerous_char($uploadedFile['name'], 'strict');
// No "dangerous" files
$cleanName = disable_dangerous_file($cleanName);
// Checking file extension
if (!filter_extension($cleanName)) {
if ($output) {
Display::display_error_message(get_lang('UplUnableToSaveFileFilteredExtension'));
}
return false;
} else {
// If the upload path differs from / (= root) it will need a slash at the end
if ($uploadPath != '/') {
$uploadPath = $uploadPath . '/';
}
// Full path to where we want to store the file with trailing slash
$whereToSave = $documentDir . $uploadPath;
// At least if the directory doesn't exist, tell so
if (!is_dir($whereToSave)) {
if (!mkdir($whereToSave, api_get_permissions_for_new_directories())) {
if ($output) {
Display::display_error_message(get_lang('DestDirectoryDoesntExist') . ' (' . $uploadPath . ')');
}
return false;
}
}
// Just upload the file "as is"
if ($onlyUploadFile) {
$errorResult = moveUploadedFile($uploadedFile, $whereToSave . $cleanName);
if ($errorResult) {
return $whereToSave . $cleanName;
} else {
return $errorResult;
}
}
/*
Based in the clean name we generate a new filesystem name
Using the session_id and group_id if values are not empty
*/
/*$fileExists = DocumentManager::documentExists(
$uploadPath.$cleanName,
$courseInfo,
$sessionId,
$groupId
);*/
$fileSystemName = DocumentManager::fixDocumentName($cleanName, 'file', $courseInfo, $sessionId, $groupId);
// Name of the document without the extension (for the title)
$documentTitle = get_document_title($uploadedFile['name']);
// Size of the uploaded file (in bytes)
$fileSize = $uploadedFile['size'];
// File permissions
$filePermissions = api_get_permissions_for_new_files();
// Example: /var/www/chamilo/courses/xxx/document/folder/picture.jpg
$fullPath = $whereToSave . $fileSystemName;
// Example: /folder/picture.jpg
$filePath = $uploadPath . $fileSystemName;
$docId = DocumentManager::get_document_id($courseInfo, $filePath, $sessionId);
$documentList = DocumentManager::getDocumentByPathInCourse($courseInfo, $filePath);
// This means that the path already exists in this course.
if (!empty($documentList) && $whatIfFileExists != 'overwrite') {
//$found = false;
// Checking if we are talking about the same course + session
/*foreach ($documentList as $document) {
if ($document['session_id'] == $sessionId) {
$found = true;
break;
}
}*/
//if ($found == false) {
$whatIfFileExists = 'rename';
//}
}
// What to do if the target file exists
switch ($whatIfFileExists) {
// Overwrite the file if it exists
case 'overwrite':
// Check if the target file exists, so we can give another message
$fileExists = file_exists($fullPath);
if (moveUploadedFile($uploadedFile, $fullPath)) {
chmod($fullPath, $filePermissions);
if ($fileExists && $docId) {
// UPDATE DATABASE
$documentId = DocumentManager::get_document_id($courseInfo, $filePath);
if (is_numeric($documentId)) {
// Update file size
update_existing_document($courseInfo, $documentId, $uploadedFile['size']);
// Update document item_property
api_item_property_update($courseInfo, TOOL_DOCUMENT, $documentId, 'DocumentUpdated', $userId, $groupId, $toUserId, null, null, $sessionId);
// Redo visibility
api_set_default_visibility($documentId, TOOL_DOCUMENT, null, $courseInfo);
} else {
// There might be cases where the file exists on disk but there is no registration of that in the database
// In this case, and if we are in overwrite mode, overwrite and create the db record
$documentId = add_document($courseInfo, $filePath, 'file', $fileSize, $documentTitle, $comment, 0, true, $groupId, $sessionId);
if ($documentId) {
// Put the document in item_property update
api_item_property_update($courseInfo, TOOL_DOCUMENT, $documentId, 'DocumentAdded', $userId, $groupId, $toUserId, null, null, $sessionId);
// Redo visibility
api_set_default_visibility($documentId, TOOL_DOCUMENT, null, $courseInfo);
}
}
// If the file is in a folder, we need to update all parent folders
item_property_update_on_folder($courseInfo, $uploadPath, $userId);
// Display success message with extra info to user
if ($output) {
Display::display_confirmation_message(get_lang('UplUploadSucceeded') . '<br /> ' . $documentTitle . ' ' . get_lang('UplFileOverwritten'), false);
}
return $filePath;
} else {
// Put the document data in the database
$documentId = add_document($courseInfo, $filePath, 'file', $fileSize, $documentTitle, $comment, 0, true, $groupId, $sessionId);
if ($documentId) {
// Put the document in item_property update
api_item_property_update($courseInfo, TOOL_DOCUMENT, $documentId, 'DocumentAdded', $userId, $groupId, $toUserId, null, null, $sessionId);
// Redo visibility
api_set_default_visibility($documentId, TOOL_DOCUMENT, null, $courseInfo);
}
// If the file is in a folder, we need to update all parent folders
item_property_update_on_folder($courseInfo, $uploadPath, $userId);
// Display success message to user
if ($output) {
Display::display_confirmation_message(get_lang('UplUploadSucceeded') . '<br /> ' . $documentTitle, false);
}
return $filePath;
}
} else {
if ($output) {
Display::display_error_message(get_lang('UplUnableToSaveFile'));
}
return false;
}
break;
// Rename the file if it exists
// Rename the file if it exists
case 'rename':
// Always rename.
$cleanName = DocumentManager::getUniqueFileName($uploadPath, $cleanName, $courseInfo, $sessionId, $groupId);
$fileSystemName = DocumentManager::fixDocumentName($cleanName, 'file', $courseInfo, $sessionId, $groupId);
$documentTitle = get_document_title($cleanName);
$fullPath = $whereToSave . $fileSystemName;
$filePath = $uploadPath . $fileSystemName;
if (moveUploadedFile($uploadedFile, $fullPath)) {
chmod($fullPath, $filePermissions);
// Put the document data in the database
$documentId = add_document($courseInfo, $filePath, 'file', $fileSize, $documentTitle, $comment, 0, true, $groupId, $sessionId);
if ($documentId) {
// Update document item_property
api_item_property_update($courseInfo, TOOL_DOCUMENT, $documentId, 'DocumentAdded', $userId, $groupId, $toUserId, null, null, $sessionId);
// Redo visibility
api_set_default_visibility($documentId, TOOL_DOCUMENT, null, $courseInfo);
}
// If the file is in a folder, we need to update all parent folders
item_property_update_on_folder($courseInfo, $uploadPath, $userId);
// Display success message to user
if ($output) {
Display::display_confirmation_message(get_lang('UplUploadSucceeded') . '<br />' . get_lang('UplFileSavedAs') . ' ' . $documentTitle, false);
}
return $filePath;
} else {
if ($output) {
Display::display_error_message(get_lang('UplUnableToSaveFile'));
}
return false;
}
break;
default:
// Only save the file if it doesn't exist or warn user if it does exist
if (file_exists($fullPath) && $docId) {
if ($output) {
Display::display_error_message($cleanName . ' ' . get_lang('UplAlreadyExists'));
}
} else {
if (moveUploadedFile($uploadedFile, $fullPath)) {
chmod($fullPath, $filePermissions);
// Put the document data in the database
$documentId = add_document($courseInfo, $filePath, 'file', $fileSize, $documentTitle, $comment, 0, true, $groupId, $sessionId);
if ($documentId) {
// Update document item_property
api_item_property_update($courseInfo, TOOL_DOCUMENT, $documentId, 'DocumentAdded', $userId, $groupId, $toUserId, null, null, $sessionId);
// Redo visibility
api_set_default_visibility($documentId, TOOL_DOCUMENT, null, $courseInfo);
}
// If the file is in a folder, we need to update all parent folders
item_property_update_on_folder($courseInfo, $uploadPath, $userId);
// Display success message to user
if ($output) {
Display::display_confirmation_message(get_lang('UplUploadSucceeded') . '<br /> ' . $documentTitle, false);
}
return $filePath;
} else {
if ($output) {
Display::display_error_message(get_lang('UplUnableToSaveFile'));
}
return false;
}
}
break;
}
}
}
}
if (DocumentManager::check_readonly($course_info, $user_id, $file)) {
api_not_allowed();
}
}
/* MAIN TOOL CODE */
/* Code to change the comment */
if (isset($_POST['comment'])) {
// Fixing the path if it is wrong
$comment = trim($_POST['comment']);
$title = trim($_POST['title']);
// Just in case see BT#3525
if (empty($title)) {
$title = $document_data['title'];
}
if (empty($title)) {
$title = get_document_title($_POST['filename']);
}
if (!empty($document_id)) {
$params = ['comment' => $comment, 'title' => $title];
Database::update($dbTable, $params, ['c_id = ? AND id = ?' => [$course_id, $document_id]]);
Display::addFlash(Display::return_message(get_lang('fileModified')));
}
}
/* WYSIWYG HTML EDITOR - Program Logic */
if ($is_allowed_to_edit) {
if (isset($_POST['formSent']) && $_POST['formSent'] == 1) {
$filename = stripslashes($_POST['filename']);
$extension = $_POST['extension'];
$content = isset($_POST['content']) ? trim(str_replace(array("\r", "\n"), '', stripslashes($_POST['content']))) : null;
$content = Security::remove_XSS($content, COURSEMANAGERLOWSECURITY);
if ($dir == '/') {