3 // This file is part of Moodle - http://moodle.org/
5 // Moodle is free software: you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation, either version 3 of the License, or
8 // (at your option) any later version.
10 // Moodle is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
15 // You should have received a copy of the GNU General Public License
16 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
20 * The Web service script that is called from the filepicker front end
24 * @subpackage repository
25 * @copyright 2009 Dongsheng Cai <dongsheng@moodle.com>
26 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
29 define('AJAX_SCRIPT', true);
31 require_once(dirname(dirname(__FILE__)).'/config.php');
32 require_once(dirname(dirname(__FILE__)).'/lib/filelib.php');
33 require_once(dirname(__FILE__).'/lib.php');
38 $action = optional_param('action', '', PARAM_ALPHA);
39 $repo_id = optional_param('repo_id', 0, PARAM_INT); // Pepository ID
40 $contextid = optional_param('ctx_id', SYSCONTEXTID, PARAM_INT); // Context ID
41 $env = optional_param('env', 'filepicker', PARAM_ALPHA); // Opened in editor or moodleform
42 $license = optional_param('license', $CFG->sitedefaultlicense, PARAM_TEXT);
43 $author = optional_param('author', '', PARAM_TEXT); // File author
44 $source = optional_param('source', '', PARAM_RAW); // File to download
45 $itemid = optional_param('itemid', 0, PARAM_INT); // Itemid
46 $page = optional_param('page', '', PARAM_RAW); // Page
47 $maxbytes = optional_param('maxbytes', 0, PARAM_INT); // Maxbytes
48 $req_path = optional_param('p', '', PARAM_RAW); // Path
49 $accepted_types = optional_param('accepted_types', '*', PARAM_RAW);
50 $saveas_filename = optional_param('title', '', PARAM_FILE); // save as file name
51 $saveas_path = optional_param('savepath', '/', PARAM_PATH); // save as file path
52 $search_text = optional_param('s', '', PARAM_CLEANHTML);
53 $linkexternal = optional_param('linkexternal', '', PARAM_ALPHA);
55 /// Headers to make it not cacheable
56 header('Cache-Control: no-cache, must-revalidate');
57 header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');
61 if (!confirm_sesskey()) {
62 $err->error = get_string('invalidsesskey');
63 die(json_encode($err));
67 if (! (isloggedin() && repository::check_context($contextid)) ) {
68 $err->error = get_string('nopermissiontoaccess', 'repository');
69 die(json_encode($err));
72 $moodle_maxbytes = get_max_upload_file_size();
73 // to prevent maxbytes greater than moodle maxbytes setting
74 if ($maxbytes == 0 || $maxbytes>=$moodle_maxbytes) {
75 $maxbytes = $moodle_maxbytes;
78 /// Wait as long as it takes for this script to finish
81 // Early actions which need to be done before repository instaces initialised
86 $params['context'] = array(get_context_instance_by_id($contextid), get_system_context());
87 $params['currentcontext'] = get_context_instance_by_id($contextid);
88 $repos = repository::get_instances($params);
90 foreach($repos as $repo){
91 if ($repo->global_search()) {
92 $ret = $repo->search($search_text);
93 array_walk($ret['list'], 'repository_attach_id', $repo->id); // See function below
94 $tmp = array_merge($list, $ret['list']);
98 $listing = array('list'=>$list);
99 $listing['gsearch'] = true;
100 die(json_encode($listing));
103 // remove the cache files & logout
105 $cache = new curl_cache;
111 /// Get repository instance information
112 $sql = 'SELECT i.name, i.typeid, r.type FROM {repository} r, {repository_instances} i '.
113 'WHERE i.id=? AND i.typeid=r.id';
115 if (!$repository = $DB->get_record_sql($sql, array($repo_id))) {
116 $err->error = get_string('invalidrepositoryid', 'repository');
117 die(json_encode($err));
119 $type = $repository->type;
122 if (file_exists($CFG->dirroot.'/repository/'.$type.'/lib.php')) {
123 require_once($CFG->dirroot.'/repository/'.$type.'/lib.php');
124 $classname = 'repository_' . $type;
125 $repo = new $classname($repo_id, $contextid, array('ajax'=>true, 'name'=>$repository->name, 'type'=>$type));
127 $err->error = get_string('invalidplugin', 'repository', $type);
128 die(json_encode($err));
131 /// These actions all occur on the currently active repository instance
136 if ($repo->check_login()) {
137 $listing = $repo->get_listing($req_path, $page);
138 $listing['repo_id'] = $repo_id;
139 echo json_encode($listing);
145 $listing = $repo->print_login();
146 $listing['repo_id'] = $repo_id;
147 echo json_encode($listing);
150 $logout = $repo->logout();
151 $logout['repo_id'] = $repo_id;
152 echo json_encode($logout);
155 $search_form['form'] = $repo->print_search();
156 echo json_encode($search_form);
159 $search_result = $repo->search($search_text, (int)$page);
160 $search_result['repo_id'] = $repo_id;
161 $search_result['search_result'] = true;
162 echo json_encode($search_result);
166 $mimetypes = array();
167 if (in_array('*', $accepted_types) or $accepted_types == '*') {
170 foreach ($accepted_types as $type) {
171 $mimetypes[] = mimeinfo('type', $type);
173 if (!in_array(mimeinfo('type', $saveas_filename), $mimetypes)) {
174 throw new moodle_exception('invalidfiletype', 'repository', '', mimeinfo('type', $_FILES[$elname]['name']));
178 // We have two special repoisitory type need to deal with
179 // local and recent plugins don't added new files to moodle, just add new records to database
180 // so we don't check user quota and maxbytes here
181 if (in_array($repo->options['type'], array('local', 'recent', 'user'))) {
182 $fileinfo = $repo->copy_to_area($source, 'draft', $itemid, $saveas_path, $saveas_filename);
184 $info['file'] = $fileinfo['title'];
185 $info['id'] = $itemid;
186 $info['url'] = $CFG->httpswwwroot.'/draftfile.php/'.$fileinfo['contextid'].'/user/draft/'.$itemid.'/'.$fileinfo['title'];
187 $filesize = $fileinfo['filesize'];
188 if (($maxbytes!==-1) && ($filesize>$maxbytes)) {
189 throw new file_exception('maxbytes');
191 echo json_encode($info);
194 $allowexternallink = (int)get_config(null, 'repositoryallowexternallinks');
195 if (!empty($allowexternallink)) {
196 $allowexternallink = true;
198 $allowexternallink = false;
200 // allow external links in url element all the time
201 $allowexternallink = ($allowexternallink || ($env == 'url'));
203 // Use link of the files
204 if ($allowexternallink and $linkexternal === 'yes' and ($repo->supported_returntypes() & FILE_EXTERNAL)) {
206 $link = $repo->get_link($source);
208 $info['filename'] = $saveas_filename;
209 $info['type'] = 'link';
210 $info['url'] = $link;
211 echo json_encode($info);
214 // Download file to moodle
215 $file = $repo->get_file($source, $saveas_filename);
216 if ($file['path'] === false) {
217 $err->error = get_string('cannotdownload', 'repository');
218 die(json_encode($err));
221 // check if exceed maxbytes
222 if (($maxbytes!==-1) && (filesize($file['path']) > $maxbytes)) {
223 throw new file_exception('maxbytes');
226 // check if exceed user quota
227 $userquota = file_get_user_used_space();
228 if (filesize($file['path'])+$userquota>=(int)$CFG->userquota) {
229 throw new file_exception('userquotalimit');
232 $record = new stdclass;
233 $record->filepath = $saveas_path;
234 $record->filename = $saveas_filename;
235 $record->component = 'user';
236 $record->filearea = 'draft';
237 $record->itemid = $itemid;
239 if (!empty($file['license'])) {
240 $record->license = $file['license'];
242 $record->license = $license;
244 if (!empty($file['author'])) {
245 $record->author = $file['author'];
247 $record->author = $author;
249 $record->source = !empty($file['url']) ? $file['url'] : '';
251 $info = repository::move_to_filepool($file['path'], $record);
253 $info['e'] = get_string('error', 'moodle');
255 echo json_encode($info);
261 $result = $repo->upload();
262 echo json_encode($result);
267 * Small function to walk an array to attach repository ID
268 * @param array $value
272 function repository_attach_id(&$value, $key, $id){
273 $value['repo_id'] = $id;