admin/index.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   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.
   9 //
  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.
  14 //
  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/>.
  17
  18 /**
  19  * Main administration script.
  20  *
  21  * @package    core
  22  * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26 // Check that config.php exists, if not then call the install script
  27 if (!file_exists('../config.php')) {
  28     header('Location: ../install.php');
  29     die();
  30 }
  31
  32 // Check that PHP is of a sufficient version as soon as possible
  33 if (version_compare(phpversion(), '5.4.4') < 0) {
  34     $phpversion = phpversion();
  35     // do NOT localise - lang strings would not work here and we CAN NOT move it to later place
  36     echo "Moodle 2.7 or later requires at least PHP 5.4.4 (currently using version $phpversion).<br />";
  37     echo "Please upgrade your server software or install older Moodle version.";
  38     die();
  39 }
  40
  41 // make sure iconv is available and actually works
  42 if (!function_exists('iconv')) {
  43     // this should not happen, this must be very borked install
  44     echo 'Moodle requires the iconv PHP extension. Please install or enable the iconv extension.';
  45     die();
  46 }
  47
  48 // Make sure php5-json is available.
  49 if (!function_exists('json_encode') || !function_exists('json_decode')) {
  50     // This also shouldn't happen.
  51     echo 'Moodle requires the json PHP extension. Please install or enable the json extension.';
  52     die();
  53 }
  54
  55 define('NO_OUTPUT_BUFFERING', true);
  56
  57 if ((isset($_GET['cache']) and $_GET['cache'] === '0')
  58         or (isset($_POST['cache']) and $_POST['cache'] === '0')
  59         or (!isset($_POST['cache']) and !isset($_GET['cache']) and empty($_GET['sesskey']) and empty($_POST['sesskey']))) {
  60     // Prevent caching at all cost when visiting this page directly,
  61     // we redirect to self once we known no upgrades are necessary.
  62     // Note: $_GET and $_POST are used here intentionally because our param cleaning is not loaded yet.
  63     // Note2: the sesskey is present in all block editing hacks, we can not redirect there, so enable caching.
  64     define('CACHE_DISABLE_ALL', true);
  65
  66     // Force OPcache reset if used, we do not want any stale caches
  67     // when detecting if upgrade necessary or when running upgrade.
  68     if (function_exists('opcache_reset')) {
  69         opcache_reset();
  70     }
  71     $cache = 0;
  72
  73 } else {
  74     $cache = 1;
  75 }
  76
  77 require('../config.php');
  78
  79 // Invalidate the cache of version.php in any circumstances to help core_component
  80 // detecting if the version has changed and component cache should be reset.
  81 if (function_exists('opcache_invalidate')) {
  82     opcache_invalidate($CFG->dirroot . '/version.php', true);
  83 }
  84 // Make sure the component cache gets rebuilt if necessary, any method that
  85 // indirectly calls the protected init() method is good here.
  86 core_component::get_core_subsystems();
  87
  88 require_once($CFG->libdir.'/adminlib.php');    // various admin-only functions
  89 require_once($CFG->libdir.'/upgradelib.php');  // general upgrade/install related functions
  90
  91 $confirmupgrade = optional_param('confirmupgrade', 0, PARAM_BOOL);
  92 $confirmrelease = optional_param('confirmrelease', 0, PARAM_BOOL);
  93 $confirmplugins = optional_param('confirmplugincheck', 0, PARAM_BOOL);
  94 $showallplugins = optional_param('showallplugins', 0, PARAM_BOOL);
  95 $agreelicense   = optional_param('agreelicense', 0, PARAM_BOOL);
  96 $fetchupdates   = optional_param('fetchupdates', 0, PARAM_BOOL);
  97 $newaddonreq    = optional_param('installaddonrequest', null, PARAM_RAW);
  98
  99 // Set up PAGE.
 100 $url = new moodle_url('/admin/index.php');
 101 $url->param('cache', $cache);
 102 $PAGE->set_url($url);
 103 unset($url);
 104
 105 // Are we returning from an add-on installation request at moodle.org/plugins?
 106 if ($newaddonreq and !$cache and empty($CFG->disableonclickaddoninstall)) {
 107     $target = new moodle_url('/admin/tool/installaddon/index.php', array(
 108         'installaddonrequest' => $newaddonreq,
 109         'confirm' => 0));
 110     if (!isloggedin() or isguestuser()) {
 111         // Login and go the the add-on tool page.
 112         $SESSION->wantsurl = $target->out();
 113         redirect(get_login_url());
 114     }
 115     redirect($target);
 116 }
 117
 118 $PAGE->set_pagelayout('admin'); // Set a default pagelayout
 119
 120 $documentationlink = '<a href="http://docs.moodle.org/en/Installation">Installation docs</a>';
 121
 122 // Check some PHP server settings
 123
 124 if (ini_get_bool('session.auto_start')) {
 125     print_error('phpvaroff', 'debug', '', (object)array('name'=>'session.auto_start', 'link'=>$documentationlink));
 126 }
 127
 128 if (!ini_get_bool('file_uploads')) {
 129     print_error('phpvaron', 'debug', '', (object)array('name'=>'file_uploads', 'link'=>$documentationlink));
 130 }
 131
 132 if (is_float_problem()) {
 133     print_error('phpfloatproblem', 'admin', '', $documentationlink);
 134 }
 135
 136 // Set some necessary variables during set-up to avoid PHP warnings later on this page
 137 if (!isset($CFG->release)) {
 138     $CFG->release = '';
 139 }
 140 if (!isset($CFG->version)) {
 141     $CFG->version = '';
 142 }
 143 if (!isset($CFG->branch)) {
 144     $CFG->branch = '';
 145 }
 146
 147 $version = null;
 148 $release = null;
 149 $branch = null;
 150 require("$CFG->dirroot/version.php");       // defines $version, $release, $branch and $maturity
 151 $CFG->target_release = $release;            // used during installation and upgrades
 152
 153 if (!$version or !$release) {
 154     print_error('withoutversion', 'debug'); // without version, stop
 155 }
 156
 157 if (!core_tables_exist()) {
 158     $PAGE->set_pagelayout('maintenance');
 159     $PAGE->set_popup_notification_allowed(false);
 160
 161     // fake some settings
 162     $CFG->docroot = 'http://docs.moodle.org';
 163
 164     $strinstallation = get_string('installation', 'install');
 165
 166     // remove current session content completely
 167     \core\session\manager::terminate_current();
 168
 169     if (empty($agreelicense)) {
 170         $strlicense = get_string('license');
 171
 172         $PAGE->navbar->add($strlicense);
 173         $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 174         $PAGE->set_heading($strinstallation);
 175         $PAGE->set_cacheable(false);
 176
 177         /** @var core_admin_renderer $output */
 178         $output = $PAGE->get_renderer('core', 'admin');
 179         echo $output->install_licence_page();
 180         die();
 181     }
 182     if (empty($confirmrelease)) {
 183         require_once($CFG->libdir.'/environmentlib.php');
 184         list($envstatus, $environment_results) = check_moodle_environment(normalize_version($release), ENV_SELECT_RELEASE);
 185         $strcurrentrelease = get_string('currentrelease');
 186
 187         $PAGE->navbar->add($strcurrentrelease);
 188         $PAGE->set_title($strinstallation);
 189         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 190         $PAGE->set_cacheable(false);
 191
 192         /** @var core_admin_renderer $output */
 193         $output = $PAGE->get_renderer('core', 'admin');
 194         echo $output->install_environment_page($maturity, $envstatus, $environment_results, $release);
 195         die();
 196     }
 197
 198     // check plugin dependencies
 199     $failed = array();
 200     if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed)) {
 201         $PAGE->navbar->add(get_string('pluginscheck', 'admin'));
 202         $PAGE->set_title($strinstallation);
 203         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 204
 205         $output = $PAGE->get_renderer('core', 'admin');
 206         $url = new moodle_url('/admin/index.php', array('agreelicense' => 1, 'confirmrelease' => 1, 'lang' => $CFG->lang));
 207         echo $output->unsatisfied_dependencies_page($version, $failed, $url);
 208         die();
 209     }
 210     unset($failed);
 211
 212     //TODO: add a page with list of non-standard plugins here
 213
 214     $strdatabasesetup = get_string('databasesetup');
 215     upgrade_init_javascript();
 216
 217     $PAGE->navbar->add($strdatabasesetup);
 218     $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 219     $PAGE->set_heading($strinstallation);
 220     $PAGE->set_cacheable(false);
 221
 222     $output = $PAGE->get_renderer('core', 'admin');
 223     echo $output->header();
 224
 225     if (!$DB->setup_is_unicodedb()) {
 226         if (!$DB->change_db_encoding()) {
 227             // If could not convert successfully, throw error, and prevent installation
 228             print_error('unicoderequired', 'admin');
 229         }
 230     }
 231
 232     install_core($version, true);
 233 }
 234
 235
 236 // Check version of Moodle code on disk compared with database
 237 // and upgrade if possible.
 238
 239 if (!$cache) {
 240     // Do not try to do anything fancy in non-cached mode,
 241     // this prevents themes from fetching data from non-existent tables.
 242     $PAGE->set_pagelayout('maintenance');
 243     $PAGE->set_popup_notification_allowed(false);
 244 }
 245
 246 $stradministration = get_string('administration');
 247 $PAGE->set_context(context_system::instance());
 248
 249 if (empty($CFG->version)) {
 250     print_error('missingconfigversion', 'debug');
 251 }
 252
 253 // Detect config cache inconsistency, this happens when you switch branches on dev servers.
 254 if ($CFG->version != $DB->get_field('config', 'value', array('name'=>'version'))) {
 255     purge_all_caches();
 256     redirect(new moodle_url('/admin/index.php'), 'Config cache inconsistency detected, resetting caches...');
 257 }
 258
 259 if (!$cache and $version > $CFG->version) {  // upgrade
 260
 261     // Warning about upgrading a test site.
 262     $testsite = false;
 263     if (defined('BEHAT_SITE_RUNNING')) {
 264         $testsite = 'behat';
 265     }
 266
 267     // We purge all of MUC's caches here.
 268     // Caches are disabled for upgrade by CACHE_DISABLE_ALL so we must set the first arg to true.
 269     // This ensures a real config object is loaded and the stores will be purged.
 270     // This is the only way we can purge custom caches such as memcache or APC.
 271     // Note: all other calls to caches will still used the disabled API.
 272     cache_helper::purge_all(true);
 273     // We then purge the regular caches.
 274     purge_all_caches();
 275
 276     /** @var core_admin_renderer $output */
 277     $output = $PAGE->get_renderer('core', 'admin');
 278
 279     if (upgrade_stale_php_files_present()) {
 280         $PAGE->set_title($stradministration);
 281         $PAGE->set_cacheable(false);
 282
 283         echo $output->upgrade_stale_php_files_page();
 284         die();
 285     }
 286
 287     if (empty($confirmupgrade)) {
 288         $a = new stdClass();
 289         $a->oldversion = "$CFG->release (".sprintf('%.2f', $CFG->version).")";
 290         $a->newversion = "$release (".sprintf('%.2f', $version).")";
 291         $strdatabasechecking = get_string('databasechecking', '', $a);
 292
 293         $PAGE->set_title($stradministration);
 294         $PAGE->set_heading($strdatabasechecking);
 295         $PAGE->set_cacheable(false);
 296
 297         echo $output->upgrade_confirm_page($a->newversion, $maturity, $testsite);
 298         die();
 299
 300     } else if (empty($confirmrelease)){
 301         require_once($CFG->libdir.'/environmentlib.php');
 302         list($envstatus, $environment_results) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 303         $strcurrentrelease = get_string('currentrelease');
 304
 305         $PAGE->navbar->add($strcurrentrelease);
 306         $PAGE->set_title($strcurrentrelease);
 307         $PAGE->set_heading($strcurrentrelease);
 308         $PAGE->set_cacheable(false);
 309
 310         echo $output->upgrade_environment_page($release, $envstatus, $environment_results);
 311         die();
 312
 313     } else if (empty($confirmplugins)) {
 314         $strplugincheck = get_string('plugincheck');
 315
 316         $PAGE->navbar->add($strplugincheck);
 317         $PAGE->set_title($strplugincheck);
 318         $PAGE->set_heading($strplugincheck);
 319         $PAGE->set_cacheable(false);
 320
 321         $reloadurl = new moodle_url('/admin/index.php', array('confirmupgrade' => 1, 'confirmrelease' => 1, 'cache' => 0));
 322
 323         if ($fetchupdates) {
 324             // No sesskey support guaranteed here, because sessions might not work yet.
 325             $updateschecker = \core\update\checker::instance();
 326             if ($updateschecker->enabled()) {
 327                 $updateschecker->fetch();
 328             }
 329             redirect($reloadurl);
 330         }
 331
 332         $deployer = \core\update\deployer::instance();
 333         if ($deployer->enabled()) {
 334             $deployer->initialize($reloadurl, $reloadurl);
 335
 336             $deploydata = $deployer->submitted_data();
 337             if (!empty($deploydata)) {
 338                 // No sesskey support guaranteed here, because sessions might not work yet.
 339                 echo $output->upgrade_plugin_confirm_deploy_page($deployer, $deploydata);
 340                 die();
 341             }
 342         }
 343
 344         echo $output->upgrade_plugin_check_page(core_plugin_manager::instance(), \core\update\checker::instance(),
 345                 $version, $showallplugins, $reloadurl,
 346                 new moodle_url('/admin/index.php', array('confirmupgrade'=>1, 'confirmrelease'=>1, 'confirmplugincheck'=>1, 'cache'=>0)));
 347         die();
 348
 349     } else {
 350         // Always verify plugin dependencies!
 351         $failed = array();
 352         if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed)) {
 353             $reloadurl = new moodle_url('/admin/index.php', array('confirmupgrade' => 1, 'confirmrelease' => 1, 'cache' => 0));
 354             echo $output->unsatisfied_dependencies_page($version, $failed, $reloadurl);
 355             die();
 356         }
 357         unset($failed);
 358
 359         // Launch main upgrade.
 360         upgrade_core($version, true);
 361     }
 362 } else if ($version < $CFG->version) {
 363     // better stop here, we can not continue with plugin upgrades or anything else
 364     throw new moodle_exception('downgradedcore', 'error', new moodle_url('/admin/'));
 365 }
 366
 367 // Updated human-readable release version if necessary
 368 if (!$cache and $release <> $CFG->release) {  // Update the release version
 369     set_config('release', $release);
 370 }
 371
 372 if (!$cache and $branch <> $CFG->branch) {  // Update the branch
 373     set_config('branch', $branch);
 374 }
 375
 376 if (!$cache and moodle_needs_upgrading()) {
 377     if (!$PAGE->headerprinted) {
 378         // means core upgrade or installation was not already done
 379
 380         if (!$confirmplugins) {
 381             $strplugincheck = get_string('plugincheck');
 382
 383             $PAGE->navbar->add($strplugincheck);
 384             $PAGE->set_title($strplugincheck);
 385             $PAGE->set_heading($strplugincheck);
 386             $PAGE->set_cacheable(false);
 387
 388             if ($fetchupdates) {
 389                 require_sesskey();
 390                 $updateschecker = \core\update\checker::instance();
 391                 if ($updateschecker->enabled()) {
 392                     $updateschecker->fetch();
 393                 }
 394                 redirect($PAGE->url);
 395             }
 396
 397             /** @var core_admin_renderer $output */
 398             $output = $PAGE->get_renderer('core', 'admin');
 399
 400             $deployer = \core\update\deployer::instance();
 401             if ($deployer->enabled()) {
 402                 $deployer->initialize($PAGE->url, $PAGE->url);
 403
 404                 $deploydata = $deployer->submitted_data();
 405                 if (!empty($deploydata)) {
 406                     require_sesskey();
 407                     echo $output->upgrade_plugin_confirm_deploy_page($deployer, $deploydata);
 408                     die();
 409                 }
 410             }
 411
 412             // Show plugins info.
 413             echo $output->upgrade_plugin_check_page(core_plugin_manager::instance(), \core\update\checker::instance(),
 414                     $version, $showallplugins,
 415                     new moodle_url($PAGE->url),
 416                     new moodle_url('/admin/index.php', array('confirmplugincheck'=>1, 'cache'=>0)));
 417             die();
 418         }
 419
 420         // Make sure plugin dependencies are always checked.
 421         $failed = array();
 422         if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed)) {
 423             /** @var core_admin_renderer $output */
 424             $output = $PAGE->get_renderer('core', 'admin');
 425             $reloadurl = new moodle_url('/admin/index.php', array('cache' => 0));
 426             echo $output->unsatisfied_dependencies_page($version, $failed, $reloadurl);
 427             die();
 428         }
 429         unset($failed);
 430     }
 431
 432     // install/upgrade all plugins and other parts
 433     upgrade_noncore(true);
 434 }
 435
 436 // If this is the first install, indicate that this site is fully configured
 437 // except the admin password
 438 if (during_initial_install()) {
 439     set_config('rolesactive', 1); // after this, during_initial_install will return false.
 440     set_config('adminsetuppending', 1);
 441     // we need this redirect to setup proper session
 442     upgrade_finished("index.php?sessionstarted=1&amp;lang=$CFG->lang");
 443 }
 444
 445 // make sure admin user is created - this is the last step because we need
 446 // session to be working properly in order to edit admin account
 447  if (!empty($CFG->adminsetuppending)) {
 448     $sessionstarted = optional_param('sessionstarted', 0, PARAM_BOOL);
 449     if (!$sessionstarted) {
 450         redirect("index.php?sessionstarted=1&lang=$CFG->lang");
 451     } else {
 452         $sessionverify = optional_param('sessionverify', 0, PARAM_BOOL);
 453         if (!$sessionverify) {
 454             $SESSION->sessionverify = 1;
 455             redirect("index.php?sessionstarted=1&sessionverify=1&lang=$CFG->lang");
 456         } else {
 457             if (empty($SESSION->sessionverify)) {
 458                 print_error('installsessionerror', 'admin', "index.php?sessionstarted=1&lang=$CFG->lang");
 459             }
 460             unset($SESSION->sessionverify);
 461         }
 462     }
 463
 464     // Cleanup SESSION to make sure other code does not complain in the future.
 465     unset($SESSION->has_timed_out);
 466     unset($SESSION->wantsurl);
 467
 468     // at this stage there can be only one admin unless more were added by install - users may change username, so do not rely on that
 469     $adminids = explode(',', $CFG->siteadmins);
 470     $adminuser = get_complete_user_data('id', reset($adminids));
 471
 472     if ($adminuser->password === 'adminsetuppending') {
 473         // prevent installation hijacking
 474         if ($adminuser->lastip !== getremoteaddr()) {
 475             print_error('installhijacked', 'admin');
 476         }
 477         // login user and let him set password and admin details
 478         $adminuser->newadminuser = 1;
 479         complete_user_login($adminuser);
 480         redirect("$CFG->wwwroot/user/editadvanced.php?id=$adminuser->id"); // Edit thyself
 481
 482     } else {
 483         unset_config('adminsetuppending');
 484     }
 485
 486 } else {
 487     // just make sure upgrade logging is properly terminated
 488     upgrade_finished('upgradesettings.php');
 489 }
 490
 491 if (has_capability('moodle/site:config', context_system::instance())) {
 492     if ($fetchupdates) {
 493         require_sesskey();
 494         $updateschecker = \core\update\checker::instance();
 495         if ($updateschecker->enabled()) {
 496             $updateschecker->fetch();
 497         }
 498         redirect(new moodle_url('/admin/index.php', array('cache' => 0)));
 499     }
 500 }
 501
 502 // Now we can be sure everything was upgraded and caches work fine,
 503 // redirect if necessary to make sure caching is enabled.
 504 if (!$cache) {
 505     redirect(new moodle_url('/admin/index.php', array('cache' => 1)));
 506 }
 507
 508 // Check for valid admin user - no guest autologin
 509 require_login(0, false);
 510 if (isguestuser()) {
 511     // Login as real user!
 512     $SESSION->wantsurl = (string)new moodle_url('/admin/index.php');
 513     redirect(get_login_url());
 514 }
 515 $context = context_system::instance();
 516 require_capability('moodle/site:config', $context);
 517
 518 // check that site is properly customized
 519 $site = get_site();
 520 if (empty($site->shortname)) {
 521     // probably new installation - lets return to frontpage after this step
 522     // remove settings that we want uninitialised
 523     unset_config('registerauth');
 524     redirect('upgradesettings.php?return=site');
 525 }
 526
 527 // setup critical warnings before printing admin tree block
 528 $insecuredataroot = is_dataroot_insecure(true);
 529 $SESSION->admin_critical_warning = ($insecuredataroot==INSECURE_DATAROOT_ERROR);
 530
 531 $adminroot = admin_get_root();
 532
 533 // Check if there are any new admin settings which have still yet to be set
 534 if (any_new_admin_settings($adminroot)){
 535     redirect('upgradesettings.php');
 536 }
 537
 538 // Return to original page that started the plugin uninstallation if necessary.
 539 if (isset($SESSION->pluginuninstallreturn)) {
 540     $return = $SESSION->pluginuninstallreturn;
 541     unset($SESSION->pluginuninstallreturn);
 542     if ($return) {
 543         redirect($return);
 544     }
 545 }
 546
 547 // Everything should now be set up, and the user is an admin
 548
 549 // Print default admin page with notifications.
 550 $errorsdisplayed = defined('WARN_DISPLAY_ERRORS_ENABLED');
 551
 552 // We make the assumption that at least one schedule task should run once per day.
 553 $lastcron = $DB->get_field_sql('SELECT MAX(lastruntime) FROM {task_scheduled}');
 554 $cronoverdue = ($lastcron < time() - 3600 * 24);
 555 $dbproblems = $DB->diagnose();
 556 $maintenancemode = !empty($CFG->maintenance_enabled);
 557
 558 // Available updates for Moodle core
 559 $updateschecker = \core\update\checker::instance();
 560 $availableupdates = array();
 561 $availableupdates['core'] = $updateschecker->get_update_info('core',
 562     array('minmaturity' => $CFG->updateminmaturity, 'notifybuilds' => $CFG->updatenotifybuilds));
 563
 564 // Available updates for contributed plugins
 565 $pluginman = core_plugin_manager::instance();
 566 foreach ($pluginman->get_plugins() as $plugintype => $plugintypeinstances) {
 567     foreach ($plugintypeinstances as $pluginname => $plugininfo) {
 568         if (!empty($plugininfo->availableupdates)) {
 569             foreach ($plugininfo->availableupdates as $pluginavailableupdate) {
 570                 if ($pluginavailableupdate->version > $plugininfo->versiondisk) {
 571                     if (!isset($availableupdates[$plugintype.'_'.$pluginname])) {
 572                         $availableupdates[$plugintype.'_'.$pluginname] = array();
 573                     }
 574                     $availableupdates[$plugintype.'_'.$pluginname][] = $pluginavailableupdate;
 575                 }
 576             }
 577         }
 578     }
 579 }
 580
 581 // The timestamp of the most recent check for available updates
 582 $availableupdatesfetch = $updateschecker->get_last_timefetched();
 583
 584 $buggyiconvnomb = (!function_exists('mb_convert_encoding') and @iconv('UTF-8', 'UTF-8//IGNORE', '100'.chr(130).'€') !== '100€');
 585 //check if the site is registered on Moodle.org
 586 $registered = $DB->count_records('registration_hubs', array('huburl' => HUB_MOODLEORGHUBURL, 'confirmed' => 1));
 587 // Check if there are any cache warnings.
 588 $cachewarnings = cache_helper::warnings();
 589
 590 admin_externalpage_setup('adminnotifications');
 591
 592 /* @var core_admin_renderer $output */
 593 $output = $PAGE->get_renderer('core', 'admin');
 594
 595 echo $output->admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed, $cronoverdue, $dbproblems,
 596                                        $maintenancemode, $availableupdates, $availableupdatesfetch, $buggyiconvnomb,
 597                                        $registered, $cachewarnings);