/**
* Do the actual processing of the uploaded file
* @param string $saveas_filename name to give to the file
* @param int $maxbytes maximum file size
* @param mixed $types optional array of file extensions that are allowed or '*' for all
* @param string $savepath optional path to save the file to
* @param int $itemid optional the ID for this item within the file area
* @param string $license optional the license to use for this file
* @param string $author optional the name of the author of this file
* @param bool $overwriteexisting optional user has asked to overwrite the existing file
* @param int $areamaxbytes maximum size of the file area.
* @return object containing details of the file uploaded
*/
public function process_upload($saveas_filename, $maxbytes, $types = '*', $savepath = '/', $itemid = 0, $license = null, $author = '', $overwriteexisting = false, $areamaxbytes = FILE_AREA_MAX_BYTES_UNLIMITED)
{
global $USER, $CFG;
if (is_array($types) and in_array('*', $types) or $types == '*') {
$this->mimetypes = '*';
} else {
foreach ($types as $type) {
$this->mimetypes[] = mimeinfo('type', $type);
}
}
if ($license == null) {
$license = $CFG->sitedefaultlicense;
}
$record = new stdClass();
$record->filearea = 'draft';
$record->component = 'user';
$record->filepath = $savepath;
$record->itemid = $itemid;
$record->license = $license;
$record->author = $author;
$context = context_user::instance($USER->id);
$elname = 'repo_upload_file';
$fs = get_file_storage();
$sm = get_string_manager();
if ($record->filepath !== '/') {
$record->filepath = file_correct_filepath($record->filepath);
}
if (!isset($_FILES[$elname])) {
throw new moodle_exception('nofile');
}
if (!empty($_FILES[$elname]['error'])) {
switch ($_FILES[$elname]['error']) {
case UPLOAD_ERR_INI_SIZE:
throw new moodle_exception('upload_error_ini_size', 'repository_upload');
break;
case UPLOAD_ERR_FORM_SIZE:
throw new moodle_exception('upload_error_form_size', 'repository_upload');
break;
case UPLOAD_ERR_PARTIAL:
throw new moodle_exception('upload_error_partial', 'repository_upload');
break;
case UPLOAD_ERR_NO_FILE:
throw new moodle_exception('upload_error_no_file', 'repository_upload');
break;
case UPLOAD_ERR_NO_TMP_DIR:
throw new moodle_exception('upload_error_no_tmp_dir', 'repository_upload');
break;
case UPLOAD_ERR_CANT_WRITE:
throw new moodle_exception('upload_error_cant_write', 'repository_upload');
break;
case UPLOAD_ERR_EXTENSION:
throw new moodle_exception('upload_error_extension', 'repository_upload');
break;
default:
throw new moodle_exception('nofile');
}
}
\core\antivirus\manager::scan_file($_FILES[$elname]['tmp_name'], $_FILES[$elname]['name'], true);
// {@link repository::build_source_field()}
$sourcefield = $this->get_file_source_info($_FILES[$elname]['name']);
$record->source = self::build_source_field($sourcefield);
if (empty($saveas_filename)) {
$record->filename = clean_param($_FILES[$elname]['name'], PARAM_FILE);
} else {
$ext = '';
$match = array();
$filename = clean_param($_FILES[$elname]['name'], PARAM_FILE);
if (strpos($filename, '.') === false) {
// File has no extension at all - do not add a dot.
$record->filename = $saveas_filename;
} else {
if (preg_match('/\\.([a-z0-9]+)$/i', $filename, $match)) {
if (isset($match[1])) {
$ext = $match[1];
}
}
$ext = !empty($ext) ? $ext : '';
if (preg_match('#\\.(' . $ext . ')$#i', $saveas_filename)) {
// saveas filename contains file extension already
$record->filename = $saveas_filename;
} else {
$record->filename = $saveas_filename . '.' . $ext;
}
}
}
// Check the file has some non-null contents - usually an indication that a user has
// tried to upload a folder by mistake
if (!$this->check_valid_contents($_FILES[$elname]['tmp_name'])) {
throw new moodle_exception('upload_error_invalid_file', 'repository_upload', '', $record->filename);
}
if ($this->mimetypes != '*') {
// check filetype
$filemimetype = file_storage::mimetype($_FILES[$elname]['tmp_name'], $record->filename);
if (!in_array($filemimetype, $this->mimetypes)) {
throw new moodle_exception('invalidfiletype', 'repository', '', get_mimetype_description(array('filename' => $_FILES[$elname]['name'])));
}
}
if (empty($record->itemid)) {
$record->itemid = 0;
}
if ($maxbytes !== -1 && filesize($_FILES[$elname]['tmp_name']) > $maxbytes) {
$maxbytesdisplay = display_size($maxbytes);
throw new file_exception('maxbytesfile', (object) array('file' => $record->filename, 'size' => $maxbytesdisplay));
}
if (file_is_draft_area_limit_reached($record->itemid, $areamaxbytes, filesize($_FILES[$elname]['tmp_name']))) {
throw new file_exception('maxareabytes');
}
$record->contextid = $context->id;
$record->userid = $USER->id;
if (repository::draftfile_exists($record->itemid, $record->filepath, $record->filename)) {
$existingfilename = $record->filename;
$unused_filename = repository::get_unused_filename($record->itemid, $record->filepath, $record->filename);
$record->filename = $unused_filename;
$stored_file = $fs->create_file_from_pathname($record, $_FILES[$elname]['tmp_name']);
if ($overwriteexisting) {
repository::overwrite_existing_draftfile($record->itemid, $record->filepath, $existingfilename, $record->filepath, $record->filename);
$record->filename = $existingfilename;
} else {
$event = array();
$event['event'] = 'fileexists';
$event['newfile'] = new stdClass();
$event['newfile']->filepath = $record->filepath;
$event['newfile']->filename = $unused_filename;
$event['newfile']->url = moodle_url::make_draftfile_url($record->itemid, $record->filepath, $unused_filename)->out(false);
$event['existingfile'] = new stdClass();
$event['existingfile']->filepath = $record->filepath;
$event['existingfile']->filename = $existingfilename;
$event['existingfile']->url = moodle_url::make_draftfile_url($record->itemid, $record->filepath, $existingfilename)->out(false);
return $event;
}
} else {
$stored_file = $fs->create_file_from_pathname($record, $_FILES[$elname]['tmp_name']);
}
return array('url' => moodle_url::make_draftfile_url($record->itemid, $record->filepath, $record->filename)->out(false), 'id' => $record->itemid, 'file' => $record->filename);
}
/**
* Process a message again to add body and attachment data.
*
* @param \Horde_Imap_Client_Data_Fetch $messagedata The structure and part of the message body
* @param \Horde_Mime_Part $partdata The part data
* @param string $part The part ID.
* @param string $filename The filename of the attachment
* @return \stdClass
* @throws \core\message\inbound\processing_failed_exception If the attachment can't be saved to disk.
*/
private function process_message_part_attachment($messagedata, $partdata, $part, $filename)
{
global $CFG;
// If a filename is present, assume that this part is an attachment.
$attachment = new \stdClass();
$attachment->filename = $filename;
$attachment->type = $partdata->getType();
$attachment->content = $partdata->getContents();
$attachment->charset = $partdata->getCharset();
$attachment->description = $partdata->getDescription();
$attachment->contentid = $partdata->getContentId();
$attachment->filesize = $messagedata->getBodyPartSize($part);
if (!empty($CFG->antiviruses)) {
mtrace("--> Attempting virus scan of '{$attachment->filename}'");
// Store the file on disk - it will need to be virus scanned first.
$itemid = rand(1, 999999999);
$directory = make_temp_directory("/messageinbound/{$itemid}", false);
$filepath = $directory . "/" . $attachment->filename;
if (!($fp = fopen($filepath, "w"))) {
// Unable to open the temporary file to write this to disk.
mtrace("--> Unable to save the file to disk for virus scanning. Check file permissions.");
throw new \core\message\inbound\processing_failed_exception('attachmentfilepermissionsfailed', 'tool_messageinbound');
}
fwrite($fp, $attachment->content);
fclose($fp);
// Perform a virus scan now.
try {
\core\antivirus\manager::scan_file($filepath, $attachment->filename, true);
} catch (\core\antivirus\scanner_exception $e) {
mtrace("--> A virus was found in the attachment '{$attachment->filename}'.");
$this->inform_attachment_virus();
return;
}
}
return $attachment;
}
break;
case UPLOAD_ERR_NO_TMP_DIR:
throw new moodle_exception('upload_error_no_tmp_dir', 'repository_upload');
break;
case UPLOAD_ERR_CANT_WRITE:
throw new moodle_exception('upload_error_cant_write', 'repository_upload');
break;
case UPLOAD_ERR_EXTENSION:
throw new moodle_exception('upload_error_extension', 'repository_upload');
break;
default:
throw new moodle_exception('nofile');
}
}
// Scan for viruses.
\core\antivirus\manager::scan_file($_FILES[$fieldname]['tmp_name'], $_FILES[$fieldname]['name'], true);
$file = new stdClass();
$file->filename = clean_param($_FILES[$fieldname]['name'], PARAM_FILE);
// check system maxbytes setting
if ($_FILES[$fieldname]['size'] > get_max_upload_file_size($CFG->maxbytes)) {
// oversize file will be ignored, error added to array to notify
// web service client
$file->errortype = 'fileoversized';
$file->error = get_string('maxbytes', 'error');
} else {
$file->filepath = $_FILES[$fieldname]['tmp_name'];
// calculate total size of upload
$totalsize += $_FILES[$fieldname]['size'];
}
$files[] = $file;
}
/**
* Move file from download folder to file pool using FILE API
*
* @todo MDL-28637
* @static
* @param string $thefile file path in download folder
* @param stdClass $record
* @return array containing the following keys:
* icon
* file
* id
* url
*/
public static function move_to_filepool($thefile, $record)
{
global $DB, $CFG, $USER, $OUTPUT;
// scan for viruses if possible, throws exception if problem found
// TODO: MDL-28637 this repository_no_delete is a bloody hack!
\core\antivirus\manager::scan_file($thefile, $record->filename, empty($CFG->repository_no_delete));
$fs = get_file_storage();
// If file name being used.
if (repository::draftfile_exists($record->itemid, $record->filepath, $record->filename)) {
$draftitemid = $record->itemid;
$new_filename = repository::get_unused_filename($draftitemid, $record->filepath, $record->filename);
$old_filename = $record->filename;
// Create a tmp file.
$record->filename = $new_filename;
$newfile = $fs->create_file_from_pathname($record, $thefile);
$event = array();
$event['event'] = 'fileexists';
$event['newfile'] = new stdClass();
$event['newfile']->filepath = $record->filepath;
$event['newfile']->filename = $new_filename;
$event['newfile']->url = moodle_url::make_draftfile_url($draftitemid, $record->filepath, $new_filename)->out();
$event['existingfile'] = new stdClass();
$event['existingfile']->filepath = $record->filepath;
$event['existingfile']->filename = $old_filename;
$event['existingfile']->url = moodle_url::make_draftfile_url($draftitemid, $record->filepath, $old_filename)->out();
return $event;
}
if ($file = $fs->create_file_from_pathname($record, $thefile)) {
if (empty($CFG->repository_no_delete)) {
$delete = unlink($thefile);
unset($CFG->repository_no_delete);
}
return array('url' => moodle_url::make_draftfile_url($file->get_itemid(), $file->get_filepath(), $file->get_filename())->out(), 'id' => $file->get_itemid(), 'file' => $file->get_filename(), 'icon' => $OUTPUT->pix_url(file_extension_icon($thefile, 32))->out());
} else {
return null;
}
}
public function test_manager_scan_file_virus()
{
// Run mock scanning without deleting infected file.
$this->assertFileExists($this->tempfile);
try {
\core\antivirus\manager::scan_file($this->tempfile, 'FOUND', false);
} catch (\moodle_exception $e) {
$this->assertInstanceOf('\\core\\antivirus\\scanner_exception', $e);
}
// File expected to remain in place.
$this->assertFileExists($this->tempfile);
// Run mock scanning with deleting infected file.
try {
\core\antivirus\manager::scan_file($this->tempfile, 'FOUND', true);
} catch (\moodle_exception $e) {
$this->assertInstanceOf('\\core\\antivirus\\scanner_exception', $e);
}
// File expected to be deleted.
$this->assertFileNotExists($this->tempfile);
}