2 // This file is part of Moodle - http://moodle.org/
4 // Moodle is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
9 // Moodle is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
18 * Class for Moodle Mobile tools.
20 * @package tool_mobile
21 * @copyright 2016 Juan Leyva
22 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
25 namespace tool_mobile;
28 use core_plugin_manager;
36 * API exposed by tool_mobile, to be used mostly by external functions and the plugin settings.
38 * @copyright 2016 Juan Leyva
39 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
44 /** @var int to identify the login via app. */
45 const LOGIN_VIA_APP = 1;
46 /** @var int to identify the login via browser. */
47 const LOGIN_VIA_BROWSER = 2;
48 /** @var int to identify the login via an embedded browser. */
49 const LOGIN_VIA_EMBEDDED_BROWSER = 3;
50 /** @var int seconds an auto-login key will expire. */
51 const LOGIN_KEY_TTL = 60;
54 * Returns a list of Moodle plugins supporting the mobile app.
56 * @return array an array of objects containing the plugin information
58 public static function get_plugins_supporting_mobile() {
60 require_once($CFG->libdir . '/adminlib.php');
62 $cachekey = 'mobileplugins';
64 $cachekey = 'authmobileplugins'; // Use a different cache for not logged users.
67 // Check if we can return this from cache.
68 $cache = \cache::make('tool_mobile', 'plugininfo');
69 $pluginsinfo = $cache->get($cachekey);
70 if ($pluginsinfo !== false) {
71 return (array)$pluginsinfo;
75 // For not logged users return only auth plugins.
76 // This is to avoid anyone (not being a registered user) to obtain and download all the site remote add-ons.
78 $plugintypes = array('auth' => $CFG->dirroot.'/auth');
80 $plugintypes = core_component::get_plugin_types();
83 foreach ($plugintypes as $plugintype => $unused) {
84 // We need to include files here.
85 $pluginswithfile = core_component::get_plugin_list_with_file($plugintype, 'db' . DIRECTORY_SEPARATOR . 'mobile.php');
86 foreach ($pluginswithfile as $plugin => $notused) {
87 $path = core_component::get_plugin_directory($plugintype, $plugin);
88 $component = $plugintype . '_' . $plugin;
89 $version = get_component_version($component);
91 require("$path/db/mobile.php");
92 foreach ($addons as $addonname => $addoninfo) {
94 // Add handlers (for site add-ons).
95 $handlers = !empty($addoninfo['handlers']) ? $addoninfo['handlers'] : array();
96 $handlers = json_encode($handlers); // JSON formatted, since it is a complex structure that may vary over time.
98 // Now language strings used by the app.
100 if (!empty($addoninfo['lang'])) {
101 $stringmanager = get_string_manager();
102 $langs = $stringmanager->get_list_of_translations();
103 foreach ($langs as $langid => $langname) {
104 foreach ($addoninfo['lang'] as $stringinfo) {
105 $lang[$langid][$stringinfo[0]] =
106 $stringmanager->get_string($stringinfo[0], $stringinfo[1], null, $langid);
110 $lang = json_encode($lang);
113 'component' => $component,
114 'version' => $version,
115 'addon' => $addonname,
116 'dependencies' => !empty($addoninfo['dependencies']) ? $addoninfo['dependencies'] : array(),
120 'handlers' => $handlers,
124 // All the mobile packages must be under the plugin mobile directory.
125 $package = $path . '/mobile/' . $addonname . '.zip';
126 if (file_exists($package)) {
127 $plugininfo['fileurl'] = $CFG->wwwroot . '' . str_replace($CFG->dirroot, '', $package);
128 $plugininfo['filehash'] = sha1_file($package);
129 $plugininfo['filesize'] = filesize($package);
131 $pluginsinfo[] = $plugininfo;
136 $cache->set($cachekey, $pluginsinfo);
142 * Returns a list of the site public settings, those not requiring authentication.
144 * @return array with the settings and warnings
146 public static function get_public_config() {
147 global $CFG, $SITE, $PAGE, $OUTPUT;
148 require_once($CFG->libdir . '/authlib.php');
150 $context = context_system::instance();
151 // We need this to make work the format text functions.
152 $PAGE->set_context($context);
154 list($authinstructions, $notusedformat) = external_format_text($CFG->auth_instructions, FORMAT_MOODLE, $context->id);
155 list($maintenancemessage, $notusedformat) = external_format_text($CFG->maintenance_message, FORMAT_MOODLE, $context->id);
157 'wwwroot' => $CFG->wwwroot,
158 'httpswwwroot' => $CFG->wwwroot,
159 'sitename' => external_format_string($SITE->fullname, $context->id, true),
160 'guestlogin' => $CFG->guestloginbutton,
161 'rememberusername' => $CFG->rememberusername,
162 'authloginviaemail' => $CFG->authloginviaemail,
163 'registerauth' => $CFG->registerauth,
164 'forgottenpasswordurl' => clean_param($CFG->forgottenpasswordurl, PARAM_URL), // We may expect a mailto: here.
165 'authinstructions' => $authinstructions,
166 'authnoneenabled' => (int) is_enabled_auth('none'),
167 'enablewebservices' => $CFG->enablewebservices,
168 'enablemobilewebservice' => $CFG->enablemobilewebservice,
169 'maintenanceenabled' => $CFG->maintenance_enabled,
170 'maintenancemessage' => $maintenancemessage,
171 'mobilecssurl' => !empty($CFG->mobilecssurl) ? $CFG->mobilecssurl : '',
172 'tool_mobile_disabledfeatures' => get_config('tool_mobile', 'disabledfeatures'),
173 'country' => clean_param($CFG->country, PARAM_NOTAGS),
174 'agedigitalconsentverification' => \core_auth\digital_consent::is_age_digital_consent_verification_enabled(),
175 'autolang' => $CFG->autolang,
176 'lang' => clean_param($CFG->lang, PARAM_LANG), // Avoid breaking WS because of incorrect package langs.
177 'langmenu' => $CFG->langmenu,
178 'langlist' => $CFG->langlist,
179 'locale' => $CFG->locale,
182 $typeoflogin = get_config('tool_mobile', 'typeoflogin');
183 // Not found, edge case.
184 if ($typeoflogin === false) {
185 $typeoflogin = self::LOGIN_VIA_APP; // Defaults to via app.
187 $settings['typeoflogin'] = $typeoflogin;
189 // Check if the user can sign-up to return the launch URL in that case.
190 $cansignup = signup_is_enabled();
192 $url = new moodle_url("/$CFG->admin/tool/mobile/launch.php");
193 $settings['launchurl'] = $url->out(false);
195 // Check that we are receiving a moodle_url object, themes can override get_logo_url and may return incorrect values.
196 if (($logourl = $OUTPUT->get_logo_url()) && $logourl instanceof moodle_url) {
197 $settings['logourl'] = $logourl->out(false);
199 if (($compactlogourl = $OUTPUT->get_compact_logo_url()) && $compactlogourl instanceof moodle_url) {
200 $settings['compactlogourl'] = $compactlogourl->out(false);
203 // Identity providers.
204 $authsequence = get_enabled_auth_plugins(true);
205 $identityproviders = \auth_plugin_base::get_identity_providers($authsequence);
206 $identityprovidersdata = \auth_plugin_base::prepare_identity_providers_for_output($identityproviders, $OUTPUT);
207 if (!empty($identityprovidersdata)) {
208 $settings['identityproviders'] = $identityprovidersdata;
211 // If age is verified, return also the admin contact details.
212 if ($settings['agedigitalconsentverification']) {
213 $settings['supportname'] = clean_param($CFG->supportname, PARAM_NOTAGS);
214 $settings['supportemail'] = clean_param($CFG->supportemail, PARAM_EMAIL);
221 * Returns a list of site configurations, filtering by section.
223 * @param string $section section name
224 * @return stdClass object containing the settings
226 public static function get_config($section) {
229 $settings = new \stdClass;
230 $context = context_system::instance();
231 $isadmin = has_capability('moodle/site:config', $context);
233 if (empty($section) or $section == 'frontpagesettings') {
234 require_once($CFG->dirroot . '/course/format/lib.php');
235 // First settings that anyone can deduce.
236 $settings->fullname = external_format_string($SITE->fullname, $context->id);
237 $settings->shortname = external_format_string($SITE->shortname, $context->id);
239 // Return to a var instead of directly to $settings object because of differences between
240 // list() in php5 and php7. {@link http://php.net/manual/en/function.list.php}
241 $formattedsummary = external_format_text($SITE->summary, $SITE->summaryformat,
243 $settings->summary = $formattedsummary[0];
244 $settings->summaryformat = $formattedsummary[1];
245 $settings->frontpage = $CFG->frontpage;
246 $settings->frontpageloggedin = $CFG->frontpageloggedin;
247 $settings->maxcategorydepth = $CFG->maxcategorydepth;
248 $settings->frontpagecourselimit = $CFG->frontpagecourselimit;
249 $settings->numsections = course_get_format($SITE)->get_last_section_number();
250 $settings->newsitems = $SITE->newsitems;
251 $settings->commentsperpage = $CFG->commentsperpage;
253 // Now, admin settings.
255 $settings->defaultfrontpageroleid = $CFG->defaultfrontpageroleid;
259 if (empty($section) or $section == 'sitepolicies') {
260 $manager = new \core_privacy\local\sitepolicy\manager();
261 $settings->sitepolicy = ($sitepolicy = $manager->get_embed_url()) ? $sitepolicy->out(false) : '';
262 $settings->sitepolicyhandler = $CFG->sitepolicyhandler;
263 $settings->disableuserimages = $CFG->disableuserimages;
266 if (empty($section) or $section == 'gradessettings') {
267 require_once($CFG->dirroot . '/user/lib.php');
268 $settings->mygradesurl = user_mygrades_url();
269 // The previous function may return moodle_url instances or plain string URLs.
270 if ($settings->mygradesurl instanceof moodle_url) {
271 $settings->mygradesurl = $settings->mygradesurl->out(false);
275 if (empty($section) or $section == 'mobileapp') {
276 $settings->tool_mobile_forcelogout = get_config('tool_mobile', 'forcelogout');
277 $settings->tool_mobile_customlangstrings = get_config('tool_mobile', 'customlangstrings');
278 $settings->tool_mobile_disabledfeatures = get_config('tool_mobile', 'disabledfeatures');
279 $settings->tool_mobile_custommenuitems = get_config('tool_mobile', 'custommenuitems');
280 $settings->tool_mobile_apppolicy = get_config('tool_mobile', 'apppolicy');
287 * Check if all the required conditions are met to allow the auto-login process continue.
289 * @param int $userid current user id
291 * @throws moodle_exception
293 public static function check_autologin_prerequisites($userid) {
296 if (!$CFG->enablewebservices or !$CFG->enablemobilewebservice) {
297 throw new moodle_exception('enablewsdescription', 'webservice');
301 throw new moodle_exception('httpsrequired', 'tool_mobile');
304 if (has_capability('moodle/site:config', context_system::instance(), $userid) or is_siteadmin($userid)) {
305 throw new moodle_exception('autologinnotallowedtoadmins', 'tool_mobile');
310 * Creates an auto-login key for the current user, this key is restricted by time and ip address.
312 * @return string the key
315 public static function get_autologin_key() {
317 // Delete previous keys.
318 delete_user_key('tool_mobile', $USER->id);
321 $iprestriction = getremoteaddr();
322 $validuntil = time() + self::LOGIN_KEY_TTL;
323 return create_user_key('tool_mobile', $USER->id, null, $iprestriction, $validuntil);
327 * Get a list of the Mobile app features.
329 * @return array array with the features grouped by theirs ubication in the app.
332 public static function get_features_list() {
335 $general = new lang_string('general');
336 $mainmenu = new lang_string('mainmenu', 'tool_mobile');
337 $course = new lang_string('course');
338 $modules = new lang_string('managemodules');
339 $user = new lang_string('user');
340 $files = new lang_string('files');
341 $remoteaddons = new lang_string('remoteaddons', 'tool_mobile');
343 $availablemods = core_plugin_manager::instance()->get_plugins_of_type('mod');
344 $coursemodules = array();
345 $appsupportedmodules = array('assign', 'book', 'chat', 'choice', 'data', 'feedback', 'folder', 'forum', 'glossary', 'imscp',
346 'label', 'lesson', 'lti', 'page', 'quiz', 'resource', 'scorm', 'survey', 'url', 'wiki', 'workshop');
348 foreach ($availablemods as $mod) {
349 if (in_array($mod->name, $appsupportedmodules)) {
350 $coursemodules['$mmCourseDelegate_mmaMod' . ucfirst($mod->name)] = $mod->displayname;
354 $remoteaddonslist = array();
355 $mobileplugins = self::get_plugins_supporting_mobile();
356 foreach ($mobileplugins as $plugin) {
357 $displayname = core_plugin_manager::instance()->plugin_name($plugin['component']) . " - " . $plugin['addon'];
358 $remoteaddonslist['remoteAddOn_' . $plugin['component'] . '_' . $plugin['addon']] = $displayname;
363 'NoDelegate_CoreOffline' => new lang_string('offlineuse', 'tool_mobile'),
364 '$mmLoginEmailSignup' => new lang_string('startsignup'),
365 "$mainmenu" => array(
366 '$mmSideMenuDelegate_mmCourses' => new lang_string('mycourses'),
367 '$mmSideMenuDelegate_mmaFrontpage' => new lang_string('sitehome'),
368 '$mmSideMenuDelegate_mmaGrades' => new lang_string('grades', 'grades'),
369 '$mmSideMenuDelegate_mmaCompetency' => new lang_string('myplans', 'tool_lp'),
370 '$mmSideMenuDelegate_mmaNotifications' => new lang_string('notifications', 'message'),
371 '$mmSideMenuDelegate_mmaMessages' => new lang_string('messages', 'message'),
372 '$mmSideMenuDelegate_mmaCalendar' => new lang_string('calendar', 'calendar'),
373 '$mmSideMenuDelegate_mmaFiles' => new lang_string('files'),
374 '$mmSideMenuDelegate_website' => new lang_string('webpage'),
375 '$mmSideMenuDelegate_help' => new lang_string('help'),
378 '$mmCoursesDelegate_search' => new lang_string('search'),
379 '$mmCoursesDelegate_mmaCompetency' => new lang_string('competencies', 'competency'),
380 '$mmCoursesDelegate_mmaParticipants' => new lang_string('participants'),
381 '$mmCoursesDelegate_mmaGrades' => new lang_string('grades', 'grades'),
382 '$mmCoursesDelegate_mmaCourseCompletion' => new lang_string('coursecompletion', 'completion'),
383 '$mmCoursesDelegate_mmaNotes' => new lang_string('notes', 'notes'),
384 'NoDelegate_CoreCourseDownload' => new lang_string('downloadcourse', 'tool_mobile'),
385 'NoDelegate_CoreCoursesDownload' => new lang_string('downloadcourses', 'tool_mobile'),
388 '$mmUserDelegate_mmaBadges' => new lang_string('badges', 'badges'),
389 '$mmUserDelegate_mmaCompetency:learningPlan' => new lang_string('competencies', 'competency'),
390 '$mmUserDelegate_mmaCourseCompletion:viewCompletion' => new lang_string('coursecompletion', 'completion'),
391 '$mmUserDelegate_mmaGrades:viewGrades' => new lang_string('grades', 'grades'),
392 '$mmUserDelegate_mmaMessages:sendMessage' => new lang_string('sendmessage', 'message'),
393 '$mmUserDelegate_mmaMessages:addContact' => new lang_string('addcontact', 'message'),
394 '$mmUserDelegate_mmaMessages:blockContact' => new lang_string('blockcontact', 'message'),
395 '$mmUserDelegate_mmaNotes:addNote' => new lang_string('addnewnote', 'notes'),
396 '$mmUserDelegate_picture' => new lang_string('userpic'),
399 'files_privatefiles' => new lang_string('privatefiles'),
400 'files_sitefiles' => new lang_string('sitefiles'),
401 'files_upload' => new lang_string('upload'),
403 "$modules" => $coursemodules,
406 if (!empty($remoteaddonslist)) {
407 $features["$remoteaddons"] = $remoteaddonslist;
414 * This function check the current site for potential configuration issues that may prevent the mobile app to work.
416 * @return array list of potential issues
419 public static function get_potential_config_issues() {
421 require_once($CFG->dirroot . "/lib/filelib.php");
422 require_once($CFG->dirroot . '/message/lib.php');
427 // Return certificate information and verify the certificate.
428 $curl->setopt(array('CURLOPT_CERTINFO' => 1, 'CURLOPT_SSL_VERIFYPEER' => true));
429 $httpswwwroot = str_replace('http:', 'https:', $CFG->wwwroot); // Force https url.
430 // Check https using a page not redirecting or returning exceptions.
431 $curl->head($httpswwwroot . "/$CFG->admin/tool/mobile/mobile.webmanifest.php");
432 $info = $curl->get_info();
434 // First of all, check the server certificate (if any).
435 if (empty($info['http_code']) or ($info['http_code'] >= 400)) {
436 $warnings[] = ['nohttpsformobilewarning', 'admin'];
438 // Check the certificate is not self-signed or has an untrusted-root.
439 // This may be weak in some scenarios (when the curl SSL verifier is outdated).
440 if (empty($info['certinfo'])) {
441 $warnings[] = ['selfsignedoruntrustedcertificatewarning', 'tool_mobile'];
444 $expectedissuer = null;
445 foreach ($info['certinfo'] as $cert) {
446 // Check if the signature algorithm is weak (Android won't work with SHA-1).
447 if ($cert['Signature Algorithm'] == 'sha1WithRSAEncryption' || $cert['Signature Algorithm'] == 'sha1WithRSA') {
448 $warnings[] = ['insecurealgorithmwarning', 'tool_mobile'];
450 // Check certificate start date.
451 if (strtotime($cert['Start date']) > $timenow) {
452 $warnings[] = ['invalidcertificatestartdatewarning', 'tool_mobile'];
454 // Check certificate end date.
455 if (strtotime($cert['Expire date']) < $timenow) {
456 $warnings[] = ['invalidcertificateexpiredatewarning', 'tool_mobile'];
459 if ($expectedissuer !== null) {
460 if ($expectedissuer !== $cert['Subject'] || $cert['Subject'] === $cert['Issuer']) {
461 $warnings[] = ['invalidcertificatechainwarning', 'tool_mobile'];
464 $expectedissuer = $cert['Issuer'];
468 // Now check typical configuration problems.
469 if ((int) $CFG->userquota === PHP_INT_MAX) {
470 // In old Moodle version was a text so was possible to have numeric values > PHP_INT_MAX.
471 $warnings[] = ['invaliduserquotawarning', 'tool_mobile'];
473 // Check ADOdb debug enabled.
474 if (get_config('auth_db', 'debugauthdb') || get_config('enrol_database', 'debugdb')) {
475 $warnings[] = ['adodbdebugwarning', 'tool_mobile'];
477 // Check display errors on.
478 if (!empty($CFG->debugdisplay)) {
479 $warnings[] = ['displayerrorswarning', 'tool_mobile'];
481 // Check mobile notifications.
482 $processors = get_message_processors();
484 foreach ($processors as $processor => $status) {
485 if ($processor == 'airnotifier' && $status->enabled) {
490 $warnings[] = ['mobilenotificationsdisabledwarning', 'tool_mobile'];