if ($folder->get('artefacttype') == 'folder' && $folder->get('locked')) {
throw new AccessDeniedException(get_string('cannotextractfileinfoldersubmitted', 'artefact.file'));
}
}
try {
$zipinfo = $file->read_archive();
} catch (SystemException $e) {
$message = get_string('invalidarchive', 'artefact.file');
}
if ($zipinfo) {
$quotaallowed = false;
if ($file->get('owner')) {
$quotaallowed = $USER->quota_allowed($zipinfo->totalsize);
} else {
if ($file->get('group')) {
$quotaallowed = group_quota_allowed($file->get('group'), $zipinfo->totalsize);
} else {
// no institution quotas yet
$quotaallowed = true;
}
}
$message = $quotaerror = false;
if ($quotaallowed) {
$name = $file->unzip_directory_name();
$message = get_string('fileswillbeextractedintofolder', 'artefact.file', $name['fullname']);
$goto = files_page($file);
if ($parent = $file->get('parent')) {
$goto .= (strpos($goto, '?') === false ? '?' : '&') . 'folder=' . $parent;
}
$form = pieform(array('name' => 'unzip_artefact', 'elements' => array('fileid' => array('type' => 'hidden', 'value' => $fileid), 'submit' => array('type' => 'submitcancel', 'class' => 'btn btn-success', 'value' => array(get_string('Decompress', 'artefact.file'), get_string('cancel')), 'goto' => $goto))));
} else {
function group_quota_add($groupid, $bytes)
{
if (!group_quota_allowed($groupid, $bytes)) {
throw new QuotaExceededException('Adding ' . $bytes . ' bytes would exceed the group\'s quota');
}
if (!($group = get_record('group', 'id', $groupid, 'deleted', 0))) {
throw new GroupNotFoundException(get_string('groupnotfound', 'group', $groupid));
}
$newquota = $group->quotaused + $bytes;
$group = new StdClass();
$group->id = $groupid;
$group->quotaused = $newquota;
update_record('group', $group);
}
/**
* Processes a newly uploaded file, copies it to disk, and creates
* a new artefact object.
* Takes the name of a file input.
* Returns false for no errors, or a string describing the error.
*/
public static function save_uploaded_file($inputname, $data, $inputindex = null, $resized = false)
{
require_once 'uploadmanager.php';
$um = new upload_manager($inputname, false, $inputindex);
if ($error = $um->preprocess_file()) {
throw new UploadException($error);
}
if (isset($inputindex)) {
if ($resized) {
$um->file['size'][$inputindex] = filesize($um->file['tmp_name'][$inputindex]);
}
$size = $um->file['size'][$inputindex];
$tmpname = $um->file['tmp_name'][$inputindex];
$filetype = $um->file['type'][$inputindex];
} else {
if ($resized) {
$um->file['size'] = filesize($um->file['tmp_name']);
}
$size = $um->file['size'];
$tmpname = $um->file['tmp_name'];
$filetype = $um->file['type'];
}
if (!empty($data->owner)) {
global $USER;
if ($data->owner == $USER->get('id')) {
$owner = $USER;
$owner->quota_refresh();
} else {
$owner = new User();
$owner->find_by_id($data->owner);
}
if (!$owner->quota_allowed($size)) {
throw new QuotaExceededException(get_string('uploadexceedsquota', 'artefact.file'));
}
}
if (!empty($data->group)) {
require_once 'group.php';
if (!group_quota_allowed($data->group, $size)) {
throw new QuotaExceededException(get_string('uploadexceedsquotagroup', 'artefact.file'));
}
}
$data->size = $size;
$data->filetype = $filetype;
$data->oldextension = $um->original_filename_extension();
$f = self::new_file($tmpname, $data);
$f->commit();
$id = $f->get('id');
// Save the file using its id as the filename, and use its id modulo
// the number of subdirectories as the directory name.
if ($error = $um->save_file(self::get_file_directory($id), $id)) {
$f->delete();
throw new UploadException($error);
} else {
if (isset($owner)) {
$owner->quota_add($size);
$owner->commit();
} else {
if (!empty($data->group)) {
group_quota_add($data->group, $size);
}
}
}
return $id;
}