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 require_once(__DIR__.'/../lib/phpminimumversionlib.php');
  34 moodle_require_minimum_php_version();
  35
  36 // make sure iconv is available and actually works
  37 if (!function_exists('iconv')) {
  38     // this should not happen, this must be very borked install
  39     echo 'Moodle requires the iconv PHP extension. Please install or enable the iconv extension.';
  40     die();
  41 }
  42
  43 // Make sure php5-json is available.
  44 if (!function_exists('json_encode') || !function_exists('json_decode')) {
  45     // This also shouldn't happen.
  46     echo 'Moodle requires the json PHP extension. Please install or enable the json extension.';
  47     die();
  48 }
  49
  50 // Make sure xml extension is available.
  51 if (!extension_loaded('xml')) {
  52     echo 'Moodle requires the xml PHP extension. Please install or enable the xml extension.';
  53     die();
  54 }
  55
  56 define('NO_OUTPUT_BUFFERING', true);
  57
  58 if (isset($_POST['upgradekey'])) {
  59     // Before you start reporting issues about the collision attacks against
  60     // SHA-1, you should understand that we are not actually attempting to do
  61     // any cryptography here. This is hashed purely so that the key is not
  62     // that apparent in the address bar itself. Anyone who catches the HTTP
  63     // traffic can immediately use it as a valid admin key.
  64     header('Location: index.php?cache=0&upgradekeyhash='.sha1($_POST['upgradekey']));
  65     die();
  66 }
  67
  68 if ((isset($_GET['cache']) and $_GET['cache'] === '0')
  69         or (isset($_POST['cache']) and $_POST['cache'] === '0')
  70         or (!isset($_POST['cache']) and !isset($_GET['cache']) and empty($_GET['sesskey']) and empty($_POST['sesskey']))) {
  71     // Prevent caching at all cost when visiting this page directly,
  72     // we redirect to self once we known no upgrades are necessary.
  73     // Note: $_GET and $_POST are used here intentionally because our param cleaning is not loaded yet.
  74     // Note2: the sesskey is present in all block editing hacks, we can not redirect there, so enable caching.
  75     define('CACHE_DISABLE_ALL', true);
  76
  77     // Force OPcache reset if used, we do not want any stale caches
  78     // when detecting if upgrade necessary or when running upgrade.
  79     if (function_exists('opcache_reset')) {
  80         opcache_reset();
  81     }
  82     $cache = 0;
  83
  84 } else {
  85     $cache = 1;
  86 }
  87
  88 require('../config.php');
  89
  90 // Invalidate the cache of version.php in any circumstances to help core_component
  91 // detecting if the version has changed and component cache should be reset.
  92 if (function_exists('opcache_invalidate')) {
  93     opcache_invalidate($CFG->dirroot . '/version.php', true);
  94 }
  95 // Make sure the component cache gets rebuilt if necessary, any method that
  96 // indirectly calls the protected init() method is good here.
  97 core_component::get_core_subsystems();
  98
  99 if (is_major_upgrade_required() && isloggedin()) {
 100     // A major upgrade is required.
 101     // Terminate the session and redirect back here before anything DB-related happens.
 102     redirect_if_major_upgrade_required();
 103 }
 104
 105 require_once($CFG->libdir.'/adminlib.php');    // various admin-only functions
 106 require_once($CFG->libdir.'/upgradelib.php');  // general upgrade/install related functions
 107
 108 $confirmupgrade = optional_param('confirmupgrade', 0, PARAM_BOOL); // Core upgrade confirmed?
 109 $confirmrelease = optional_param('confirmrelease', 0, PARAM_BOOL); // Core release info and server checks confirmed?
 110 $confirmplugins = optional_param('confirmplugincheck', 0, PARAM_BOOL); // Plugins check page confirmed?
 111 $showallplugins = optional_param('showallplugins', 0, PARAM_BOOL); // Show all plugins on the plugins check page?
 112 $agreelicense = optional_param('agreelicense', 0, PARAM_BOOL); // GPL license confirmed for installation?
 113 $fetchupdates = optional_param('fetchupdates', 0, PARAM_BOOL); // Should check for available updates?
 114 $newaddonreq = optional_param('installaddonrequest', null, PARAM_RAW); // Plugin installation requested at moodle.org/plugins.
 115 $upgradekeyhash = optional_param('upgradekeyhash', null, PARAM_ALPHANUM); // Hash of provided upgrade key.
 116 $installdep = optional_param('installdep', null, PARAM_COMPONENT); // Install given missing dependency (required plugin).
 117 $installdepx = optional_param('installdepx', false, PARAM_BOOL); // Install all missing dependencies.
 118 $confirminstalldep = optional_param('confirminstalldep', false, PARAM_BOOL); // Installing dependencies confirmed.
 119 $abortinstall = optional_param('abortinstall', null, PARAM_COMPONENT); // Cancel installation of the given new plugin.
 120 $abortinstallx = optional_param('abortinstallx', null, PARAM_BOOL); // Cancel installation of all new plugins.
 121 $confirmabortinstall = optional_param('confirmabortinstall', false, PARAM_BOOL); // Installation cancel confirmed.
 122 $abortupgrade = optional_param('abortupgrade', null, PARAM_COMPONENT); // Cancel upgrade of the given existing plugin.
 123 $abortupgradex = optional_param('abortupgradex', null, PARAM_BOOL); // Cancel upgrade of all upgradable plugins.
 124 $confirmabortupgrade = optional_param('confirmabortupgrade', false, PARAM_BOOL); // Upgrade cancel confirmed.
 125 $installupdate = optional_param('installupdate', null, PARAM_COMPONENT); // Install given available update.
 126 $installupdateversion = optional_param('installupdateversion', null, PARAM_INT); // Version of the available update to install.
 127 $installupdatex = optional_param('installupdatex', false, PARAM_BOOL); // Install all available plugin updates.
 128 $confirminstallupdate = optional_param('confirminstallupdate', false, PARAM_BOOL); // Available update(s) install confirmed?
 129
 130 if (!empty($CFG->disableupdateautodeploy)) {
 131     // Invalidate all requests to install plugins via the admin UI.
 132     $newaddonreq = null;
 133     $installdep = null;
 134     $installdepx = false;
 135     $abortupgrade = null;
 136     $abortupgradex = null;
 137     $installupdate = null;
 138     $installupdateversion = null;
 139     $installupdatex = false;
 140 }
 141
 142 // Set up PAGE.
 143 $url = new moodle_url('/admin/index.php');
 144 $url->param('cache', $cache);
 145 if (isset($upgradekeyhash)) {
 146     $url->param('upgradekeyhash', $upgradekeyhash);
 147 }
 148 $PAGE->set_url($url);
 149 unset($url);
 150
 151 // Are we returning from an add-on installation request at moodle.org/plugins?
 152 if ($newaddonreq and !$cache and empty($CFG->disableupdateautodeploy)) {
 153     $target = new moodle_url('/admin/tool/installaddon/index.php', array(
 154         'installaddonrequest' => $newaddonreq,
 155         'confirm' => 0));
 156     if (!isloggedin() or isguestuser()) {
 157         // Login and go the the add-on tool page.
 158         $SESSION->wantsurl = $target->out();
 159         redirect(get_login_url());
 160     }
 161     redirect($target);
 162 }
 163
 164 $PAGE->set_pagelayout('admin'); // Set a default pagelayout
 165
 166 $documentationlink = '<a href="http://docs.moodle.org/en/Installation">Installation docs</a>';
 167
 168 // Check some PHP server settings
 169
 170 if (ini_get_bool('session.auto_start')) {
 171     print_error('phpvaroff', 'debug', '', (object)array('name'=>'session.auto_start', 'link'=>$documentationlink));
 172 }
 173
 174 if (!ini_get_bool('file_uploads')) {
 175     print_error('phpvaron', 'debug', '', (object)array('name'=>'file_uploads', 'link'=>$documentationlink));
 176 }
 177
 178 if (is_float_problem()) {
 179     print_error('phpfloatproblem', 'admin', '', $documentationlink);
 180 }
 181
 182 // Set some necessary variables during set-up to avoid PHP warnings later on this page
 183 if (!isset($CFG->release)) {
 184     $CFG->release = '';
 185 }
 186 if (!isset($CFG->version)) {
 187     $CFG->version = '';
 188 }
 189 if (!isset($CFG->branch)) {
 190     $CFG->branch = '';
 191 }
 192
 193 $version = null;
 194 $release = null;
 195 $branch = null;
 196 require("$CFG->dirroot/version.php");       // defines $version, $release, $branch and $maturity
 197 $CFG->target_release = $release;            // used during installation and upgrades
 198
 199 if (!$version or !$release) {
 200     print_error('withoutversion', 'debug'); // without version, stop
 201 }
 202
 203 if (!core_tables_exist()) {
 204     $PAGE->set_pagelayout('maintenance');
 205     $PAGE->set_popup_notification_allowed(false);
 206
 207     // fake some settings
 208     $CFG->docroot = 'http://docs.moodle.org';
 209
 210     $strinstallation = get_string('installation', 'install');
 211
 212     // remove current session content completely
 213     \core\session\manager::terminate_current();
 214
 215     if (empty($agreelicense)) {
 216         $strlicense = get_string('license');
 217
 218         $PAGE->navbar->add($strlicense);
 219         $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 220         $PAGE->set_heading($strinstallation);
 221         $PAGE->set_cacheable(false);
 222
 223         $output = $PAGE->get_renderer('core', 'admin');
 224         echo $output->install_licence_page();
 225         die();
 226     }
 227     if (empty($confirmrelease)) {
 228         require_once($CFG->libdir.'/environmentlib.php');
 229         list($envstatus, $environmentresults) = check_moodle_environment(normalize_version($release), ENV_SELECT_RELEASE);
 230         $strcurrentrelease = get_string('currentrelease');
 231
 232         $PAGE->navbar->add($strcurrentrelease);
 233         $PAGE->set_title($strinstallation);
 234         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 235         $PAGE->set_cacheable(false);
 236
 237         $output = $PAGE->get_renderer('core', 'admin');
 238         echo $output->install_environment_page($maturity, $envstatus, $environmentresults, $release);
 239         die();
 240     }
 241
 242     // check plugin dependencies
 243     $failed = array();
 244     if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed, $CFG->branch)) {
 245         $PAGE->navbar->add(get_string('pluginscheck', 'admin'));
 246         $PAGE->set_title($strinstallation);
 247         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 248
 249         $output = $PAGE->get_renderer('core', 'admin');
 250         $url = new moodle_url($PAGE->url, array('agreelicense' => 1, 'confirmrelease' => 1, 'lang' => $CFG->lang));
 251         echo $output->unsatisfied_dependencies_page($version, $failed, $url);
 252         die();
 253     }
 254     unset($failed);
 255
 256     //TODO: add a page with list of non-standard plugins here
 257
 258     $strdatabasesetup = get_string('databasesetup');
 259     upgrade_init_javascript();
 260
 261     $PAGE->navbar->add($strdatabasesetup);
 262     $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 263     $PAGE->set_heading($strinstallation);
 264     $PAGE->set_cacheable(false);
 265
 266     $output = $PAGE->get_renderer('core', 'admin');
 267     echo $output->header();
 268
 269     if (!$DB->setup_is_unicodedb()) {
 270         if (!$DB->change_db_encoding()) {
 271             // If could not convert successfully, throw error, and prevent installation
 272             print_error('unicoderequired', 'admin');
 273         }
 274     }
 275
 276     install_core($version, true);
 277 }
 278
 279
 280 // Check version of Moodle code on disk compared with database
 281 // and upgrade if possible.
 282
 283 if (!$cache) {
 284     // Do not try to do anything fancy in non-cached mode,
 285     // this prevents themes from fetching data from non-existent tables.
 286     $PAGE->set_pagelayout('maintenance');
 287     $PAGE->set_popup_notification_allowed(false);
 288 }
 289
 290 $stradministration = get_string('administration');
 291 $PAGE->set_context(context_system::instance());
 292
 293 if (empty($CFG->version)) {
 294     print_error('missingconfigversion', 'debug');
 295 }
 296
 297 // Detect config cache inconsistency, this happens when you switch branches on dev servers.
 298 if ($CFG->version != $DB->get_field('config', 'value', array('name'=>'version'))) {
 299     purge_all_caches();
 300     redirect(new moodle_url($PAGE->url), 'Config cache inconsistency detected, resetting caches...');
 301 }
 302
 303 if (!$cache and $version > $CFG->version) {  // upgrade
 304
 305     $PAGE->set_url(new moodle_url($PAGE->url, array(
 306         'confirmupgrade' => $confirmupgrade,
 307         'confirmrelease' => $confirmrelease,
 308         'confirmplugincheck' => $confirmplugins,
 309     )));
 310
 311     check_upgrade_key($upgradekeyhash);
 312
 313     // Warning about upgrading a test site.
 314     $testsite = false;
 315     if (defined('BEHAT_SITE_RUNNING')) {
 316         $testsite = 'behat';
 317     }
 318
 319     if (isset($CFG->themerev)) {
 320         // Store the themerev to restore after purging caches.
 321         $themerev = $CFG->themerev;
 322     }
 323
 324     // We purge all of MUC's caches here.
 325     // Caches are disabled for upgrade by CACHE_DISABLE_ALL so we must set the first arg to true.
 326     // This ensures a real config object is loaded and the stores will be purged.
 327     // This is the only way we can purge custom caches such as memcache or APC.
 328     // Note: all other calls to caches will still used the disabled API.
 329     cache_helper::purge_all(true);
 330     // We then purge the regular caches.
 331     purge_all_caches();
 332
 333     if (isset($themerev)) {
 334         // Restore the themerev
 335         set_config('themerev', $themerev);
 336     }
 337
 338     $output = $PAGE->get_renderer('core', 'admin');
 339
 340     if (upgrade_stale_php_files_present()) {
 341         $PAGE->set_title($stradministration);
 342         $PAGE->set_cacheable(false);
 343
 344         echo $output->upgrade_stale_php_files_page();
 345         die();
 346     }
 347
 348     if (empty($confirmupgrade)) {
 349         $a = new stdClass();
 350         $a->oldversion = "$CFG->release (".sprintf('%.2f', $CFG->version).")";
 351         $a->newversion = "$release (".sprintf('%.2f', $version).")";
 352         $strdatabasechecking = get_string('databasechecking', '', $a);
 353
 354         $PAGE->set_title($stradministration);
 355         $PAGE->set_heading($strdatabasechecking);
 356         $PAGE->set_cacheable(false);
 357
 358         echo $output->upgrade_confirm_page($a->newversion, $maturity, $testsite);
 359         die();
 360
 361     } else if (empty($confirmrelease)) {
 362         require_once($CFG->libdir.'/environmentlib.php');
 363         list($envstatus, $environmentresults) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 364         $strcurrentrelease = get_string('currentrelease');
 365
 366         $PAGE->navbar->add($strcurrentrelease);
 367         $PAGE->set_title($strcurrentrelease);
 368         $PAGE->set_heading($strcurrentrelease);
 369         $PAGE->set_cacheable(false);
 370
 371         echo $output->upgrade_environment_page($release, $envstatus, $environmentresults);
 372         die();
 373
 374     } else if (empty($confirmplugins)) {
 375         $strplugincheck = get_string('plugincheck');
 376
 377         $PAGE->navbar->add($strplugincheck);
 378         $PAGE->set_title($strplugincheck);
 379         $PAGE->set_heading($strplugincheck);
 380         $PAGE->set_cacheable(false);
 381
 382         $pluginman = core_plugin_manager::instance();
 383
 384         // Check for available updates.
 385         if ($fetchupdates) {
 386             // No sesskey support guaranteed here, because sessions might not work yet.
 387             $updateschecker = \core\update\checker::instance();
 388             if ($updateschecker->enabled()) {
 389                 $updateschecker->fetch();
 390             }
 391             redirect($PAGE->url);
 392         }
 393
 394         // Cancel all plugin installations.
 395         if ($abortinstallx) {
 396             // No sesskey support guaranteed here, because sessions might not work yet.
 397             $abortables = $pluginman->list_cancellable_installations();
 398             if ($abortables) {
 399                 if ($confirmabortinstall) {
 400                     foreach ($abortables as $plugin) {
 401                         $pluginman->cancel_plugin_installation($plugin->component);
 402                     }
 403                     redirect($PAGE->url);
 404                 } else {
 405                     $continue = new moodle_url($PAGE->url, array('abortinstallx' => $abortinstallx, 'confirmabortinstall' => 1));
 406                     echo $output->upgrade_confirm_abort_install_page($abortables, $continue);
 407                     die();
 408                 }
 409             }
 410             redirect($PAGE->url);
 411         }
 412
 413         // Cancel single plugin installation.
 414         if ($abortinstall) {
 415             // No sesskey support guaranteed here, because sessions might not work yet.
 416             if ($confirmabortinstall) {
 417                 $pluginman->cancel_plugin_installation($abortinstall);
 418                 redirect($PAGE->url);
 419             } else {
 420                 $continue = new moodle_url($PAGE->url, array('abortinstall' => $abortinstall, 'confirmabortinstall' => 1));
 421                 $abortable = $pluginman->get_plugin_info($abortinstall);
 422                 if ($pluginman->can_cancel_plugin_installation($abortable)) {
 423                     echo $output->upgrade_confirm_abort_install_page(array($abortable), $continue);
 424                     die();
 425                 }
 426                 redirect($PAGE->url);
 427             }
 428         }
 429
 430         // Cancel all plugins upgrades (that is, restore archived versions).
 431         if ($abortupgradex) {
 432             // No sesskey support guaranteed here, because sessions might not work yet.
 433             $restorable = $pluginman->list_restorable_archives();
 434             if ($restorable) {
 435                 upgrade_install_plugins($restorable, $confirmabortupgrade,
 436                     get_string('cancelupgradehead', 'core_plugin'),
 437                     new moodle_url($PAGE->url, array('abortupgradex' => 1, 'confirmabortupgrade' => 1))
 438                 );
 439             }
 440             redirect($PAGE->url);
 441         }
 442
 443         // Cancel single plugin upgrade (that is, install the archived version).
 444         if ($abortupgrade) {
 445             // No sesskey support guaranteed here, because sessions might not work yet.
 446             $restorable = $pluginman->list_restorable_archives();
 447             if (isset($restorable[$abortupgrade])) {
 448                 $restorable = array($restorable[$abortupgrade]);
 449                 upgrade_install_plugins($restorable, $confirmabortupgrade,
 450                     get_string('cancelupgradehead', 'core_plugin'),
 451                     new moodle_url($PAGE->url, array('abortupgrade' => $abortupgrade, 'confirmabortupgrade' => 1))
 452                 );
 453             }
 454             redirect($PAGE->url);
 455         }
 456
 457         // Install all available missing dependencies.
 458         if ($installdepx) {
 459             // No sesskey support guaranteed here, because sessions might not work yet.
 460             $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 461             upgrade_install_plugins($installable, $confirminstalldep,
 462                 get_string('dependencyinstallhead', 'core_plugin'),
 463                 new moodle_url($PAGE->url, array('installdepx' => 1, 'confirminstalldep' => 1))
 464             );
 465         }
 466
 467         // Install single available missing dependency.
 468         if ($installdep) {
 469             // No sesskey support guaranteed here, because sessions might not work yet.
 470             $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 471             if (!empty($installable[$installdep])) {
 472                 $installable = array($installable[$installdep]);
 473                 upgrade_install_plugins($installable, $confirminstalldep,
 474                     get_string('dependencyinstallhead', 'core_plugin'),
 475                     new moodle_url($PAGE->url, array('installdep' => $installdep, 'confirminstalldep' => 1))
 476                 );
 477             }
 478         }
 479
 480         // Install all available updates.
 481         if ($installupdatex) {
 482             // No sesskey support guaranteed here, because sessions might not work yet.
 483             $installable = $pluginman->filter_installable($pluginman->available_updates());
 484             upgrade_install_plugins($installable, $confirminstallupdate,
 485                 get_string('updateavailableinstallallhead', 'core_admin'),
 486                 new moodle_url($PAGE->url, array('installupdatex' => 1, 'confirminstallupdate' => 1))
 487             );
 488         }
 489
 490         // Install single available update.
 491         if ($installupdate and $installupdateversion) {
 492             // No sesskey support guaranteed here, because sessions might not work yet.
 493             if ($pluginman->is_remote_plugin_installable($installupdate, $installupdateversion)) {
 494                 $installable = array($pluginman->get_remote_plugin_info($installupdate, $installupdateversion, true));
 495                 upgrade_install_plugins($installable, $confirminstallupdate,
 496                     get_string('updateavailableinstallallhead', 'core_admin'),
 497                     new moodle_url($PAGE->url, array('installupdate' => $installupdate,
 498                         'installupdateversion' => $installupdateversion, 'confirminstallupdate' => 1)
 499                     )
 500                 );
 501             }
 502         }
 503
 504         echo $output->upgrade_plugin_check_page(core_plugin_manager::instance(), \core\update\checker::instance(),
 505                 $version, $showallplugins, $PAGE->url, new moodle_url($PAGE->url, array('confirmplugincheck' => 1)));
 506         die();
 507
 508     } else {
 509         // Always verify plugin dependencies!
 510         $failed = array();
 511         if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed, $CFG->branch)) {
 512             echo $output->unsatisfied_dependencies_page($version, $failed, new moodle_url($PAGE->url,
 513                 array('confirmplugincheck' => 0)));
 514             die();
 515         }
 516         unset($failed);
 517
 518         // Launch main upgrade.
 519         upgrade_core($version, true);
 520     }
 521 } else if ($version < $CFG->version) {
 522     // better stop here, we can not continue with plugin upgrades or anything else
 523     throw new moodle_exception('downgradedcore', 'error', new moodle_url('/admin/'));
 524 }
 525
 526 // Updated human-readable release version if necessary
 527 if (!$cache and $release <> $CFG->release) {  // Update the release version
 528     set_config('release', $release);
 529 }
 530
 531 if (!$cache and $branch <> $CFG->branch) {  // Update the branch
 532     set_config('branch', $branch);
 533 }
 534
 535 if (!$cache and moodle_needs_upgrading()) {
 536
 537     $PAGE->set_url(new moodle_url($PAGE->url, array(
 538         'confirmrelease' => $confirmrelease,
 539         'confirmplugincheck' => $confirmplugins,
 540     )));
 541
 542     check_upgrade_key($upgradekeyhash);
 543
 544     if (!$PAGE->headerprinted) {
 545         // means core upgrade or installation was not already done
 546
 547         $pluginman = core_plugin_manager::instance();
 548         $output = $PAGE->get_renderer('core', 'admin');
 549
 550         if (empty($confirmrelease)) {
 551             require_once($CFG->libdir . '/environmentlib.php');
 552
 553             list($envstatus, $environmentresults) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 554             $strcurrentrelease = get_string('currentrelease');
 555
 556             $PAGE->navbar->add($strcurrentrelease);
 557             $PAGE->set_title($strcurrentrelease);
 558             $PAGE->set_heading($strcurrentrelease);
 559             $PAGE->set_cacheable(false);
 560
 561             echo $output->upgrade_environment_page($release, $envstatus, $environmentresults);
 562             die();
 563
 564         } else if (!$confirmplugins) {
 565             $strplugincheck = get_string('plugincheck');
 566
 567             $PAGE->navbar->add($strplugincheck);
 568             $PAGE->set_title($strplugincheck);
 569             $PAGE->set_heading($strplugincheck);
 570             $PAGE->set_cacheable(false);
 571
 572             // Check for available updates.
 573             if ($fetchupdates) {
 574                 require_sesskey();
 575                 $updateschecker = \core\update\checker::instance();
 576                 if ($updateschecker->enabled()) {
 577                     $updateschecker->fetch();
 578                 }
 579                 redirect($PAGE->url);
 580             }
 581
 582             // Cancel all plugin installations.
 583             if ($abortinstallx) {
 584                 require_sesskey();
 585                 $abortables = $pluginman->list_cancellable_installations();
 586                 if ($abortables) {
 587                     if ($confirmabortinstall) {
 588                         foreach ($abortables as $plugin) {
 589                             $pluginman->cancel_plugin_installation($plugin->component);
 590                         }
 591                         redirect($PAGE->url);
 592                     } else {
 593                         $continue = new moodle_url($PAGE->url, array('abortinstallx' => $abortinstallx,
 594                             'confirmabortinstall' => 1));
 595                         echo $output->upgrade_confirm_abort_install_page($abortables, $continue);
 596                         die();
 597                     }
 598                 }
 599                 redirect($PAGE->url);
 600             }
 601
 602             // Cancel single plugin installation.
 603             if ($abortinstall) {
 604                 require_sesskey();
 605                 if ($confirmabortinstall) {
 606                     $pluginman->cancel_plugin_installation($abortinstall);
 607                     redirect($PAGE->url);
 608                 } else {
 609                     $continue = new moodle_url($PAGE->url, array('abortinstall' => $abortinstall, 'confirmabortinstall' => 1));
 610                     $abortable = $pluginman->get_plugin_info($abortinstall);
 611                     if ($pluginman->can_cancel_plugin_installation($abortable)) {
 612                         echo $output->upgrade_confirm_abort_install_page(array($abortable), $continue);
 613                         die();
 614                     }
 615                     redirect($PAGE->url);
 616                 }
 617             }
 618
 619             // Cancel all plugins upgrades (that is, restore archived versions).
 620             if ($abortupgradex) {
 621                 require_sesskey();
 622                 $restorable = $pluginman->list_restorable_archives();
 623                 if ($restorable) {
 624                     upgrade_install_plugins($restorable, $confirmabortupgrade,
 625                         get_string('cancelupgradehead', 'core_plugin'),
 626                         new moodle_url($PAGE->url, array('abortupgradex' => 1, 'confirmabortupgrade' => 1))
 627                     );
 628                 }
 629                 redirect($PAGE->url);
 630             }
 631
 632             // Cancel single plugin upgrade (that is, install the archived version).
 633             if ($abortupgrade) {
 634                 require_sesskey();
 635                 $restorable = $pluginman->list_restorable_archives();
 636                 if (isset($restorable[$abortupgrade])) {
 637                     $restorable = array($restorable[$abortupgrade]);
 638                     upgrade_install_plugins($restorable, $confirmabortupgrade,
 639                         get_string('cancelupgradehead', 'core_plugin'),
 640                         new moodle_url($PAGE->url, array('abortupgrade' => $abortupgrade, 'confirmabortupgrade' => 1))
 641                     );
 642                 }
 643                 redirect($PAGE->url);
 644             }
 645
 646             // Install all available missing dependencies.
 647             if ($installdepx) {
 648                 require_sesskey();
 649                 $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 650                 upgrade_install_plugins($installable, $confirminstalldep,
 651                     get_string('dependencyinstallhead', 'core_plugin'),
 652                     new moodle_url($PAGE->url, array('installdepx' => 1, 'confirminstalldep' => 1))
 653                 );
 654             }
 655
 656             // Install single available missing dependency.
 657             if ($installdep) {
 658                 require_sesskey();
 659                 $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 660                 if (!empty($installable[$installdep])) {
 661                     $installable = array($installable[$installdep]);
 662                     upgrade_install_plugins($installable, $confirminstalldep,
 663                         get_string('dependencyinstallhead', 'core_plugin'),
 664                         new moodle_url($PAGE->url, array('installdep' => $installdep, 'confirminstalldep' => 1))
 665                     );
 666                 }
 667             }
 668
 669             // Install all available updates.
 670             if ($installupdatex) {
 671                 require_sesskey();
 672                 $installable = $pluginman->filter_installable($pluginman->available_updates());
 673                 upgrade_install_plugins($installable, $confirminstallupdate,
 674                     get_string('updateavailableinstallallhead', 'core_admin'),
 675                     new moodle_url($PAGE->url, array('installupdatex' => 1, 'confirminstallupdate' => 1))
 676                 );
 677             }
 678
 679             // Install single available update.
 680             if ($installupdate and $installupdateversion) {
 681                 require_sesskey();
 682                 if ($pluginman->is_remote_plugin_installable($installupdate, $installupdateversion)) {
 683                     $installable = array($pluginman->get_remote_plugin_info($installupdate, $installupdateversion, true));
 684                     upgrade_install_plugins($installable, $confirminstallupdate,
 685                         get_string('updateavailableinstallallhead', 'core_admin'),
 686                         new moodle_url($PAGE->url, array('installupdate' => $installupdate,
 687                             'installupdateversion' => $installupdateversion, 'confirminstallupdate' => 1)
 688                         )
 689                     );
 690                 }
 691             }
 692
 693             // Show plugins info.
 694             echo $output->upgrade_plugin_check_page($pluginman, \core\update\checker::instance(),
 695                     $version, $showallplugins,
 696                     new moodle_url($PAGE->url),
 697                     new moodle_url($PAGE->url, array('confirmplugincheck' => 1, 'cache' => 0)));
 698             die();
 699         }
 700
 701         // Make sure plugin dependencies are always checked.
 702         $failed = array();
 703         if (!$pluginman->all_plugins_ok($version, $failed, $CFG->branch)) {
 704             $output = $PAGE->get_renderer('core', 'admin');
 705             echo $output->unsatisfied_dependencies_page($version, $failed, new moodle_url($PAGE->url,
 706                 array('confirmplugincheck' => 0)));
 707             die();
 708         }
 709         unset($failed);
 710     }
 711
 712     // install/upgrade all plugins and other parts
 713     upgrade_noncore(true);
 714 }
 715
 716 // If this is the first install, indicate that this site is fully configured
 717 // except the admin password
 718 if (during_initial_install()) {
 719     set_config('rolesactive', 1); // after this, during_initial_install will return false.
 720     set_config('adminsetuppending', 1);
 721     set_config('registrationpending', 1); // Remind to register site after all other setup is finished.
 722     // we need this redirect to setup proper session
 723     upgrade_finished("index.php?sessionstarted=1&amp;lang=$CFG->lang");
 724 }
 725
 726 // make sure admin user is created - this is the last step because we need
 727 // session to be working properly in order to edit admin account
 728  if (!empty($CFG->adminsetuppending)) {
 729     $sessionstarted = optional_param('sessionstarted', 0, PARAM_BOOL);
 730     if (!$sessionstarted) {
 731         redirect("index.php?sessionstarted=1&lang=$CFG->lang");
 732     } else {
 733         $sessionverify = optional_param('sessionverify', 0, PARAM_BOOL);
 734         if (!$sessionverify) {
 735             $SESSION->sessionverify = 1;
 736             redirect("index.php?sessionstarted=1&sessionverify=1&lang=$CFG->lang");
 737         } else {
 738             if (empty($SESSION->sessionverify)) {
 739                 print_error('installsessionerror', 'admin', "index.php?sessionstarted=1&lang=$CFG->lang");
 740             }
 741             unset($SESSION->sessionverify);
 742         }
 743     }
 744
 745     // Cleanup SESSION to make sure other code does not complain in the future.
 746     unset($SESSION->has_timed_out);
 747     unset($SESSION->wantsurl);
 748
 749     // 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
 750     $adminids = explode(',', $CFG->siteadmins);
 751     $adminuser = get_complete_user_data('id', reset($adminids));
 752
 753     if ($adminuser->password === 'adminsetuppending') {
 754         // prevent installation hijacking
 755         if ($adminuser->lastip !== getremoteaddr()) {
 756             print_error('installhijacked', 'admin');
 757         }
 758         // login user and let him set password and admin details
 759         $adminuser->newadminuser = 1;
 760         complete_user_login($adminuser);
 761         redirect("$CFG->wwwroot/user/editadvanced.php?id=$adminuser->id"); // Edit thyself
 762
 763     } else {
 764         unset_config('adminsetuppending');
 765     }
 766
 767 } else {
 768     // just make sure upgrade logging is properly terminated
 769     upgrade_finished('upgradesettings.php');
 770 }
 771
 772 if (has_capability('moodle/site:config', context_system::instance())) {
 773     if ($fetchupdates) {
 774         require_sesskey();
 775         $updateschecker = \core\update\checker::instance();
 776         if ($updateschecker->enabled()) {
 777             $updateschecker->fetch();
 778         }
 779         redirect(new moodle_url('/admin/index.php', array('cache' => 0)));
 780     }
 781 }
 782
 783 // Now we can be sure everything was upgraded and caches work fine,
 784 // redirect if necessary to make sure caching is enabled.
 785 if (!$cache) {
 786     redirect(new moodle_url('/admin/index.php', array('cache' => 1)));
 787 }
 788
 789 // Check for valid admin user - no guest autologin
 790 require_login(0, false);
 791 if (isguestuser()) {
 792     // Login as real user!
 793     $SESSION->wantsurl = (string)new moodle_url('/admin/index.php');
 794     redirect(get_login_url());
 795 }
 796 $context = context_system::instance();
 797
 798 if (!has_capability('moodle/site:config', $context)) {
 799     // Do not throw exception display an empty page with administration menu if visible for current user.
 800     $PAGE->set_title($SITE->fullname);
 801     $PAGE->set_heading($SITE->fullname);
 802     echo $OUTPUT->header();
 803     echo $OUTPUT->footer();
 804     exit;
 805 }
 806
 807 // check that site is properly customized
 808 $site = get_site();
 809 if (empty($site->shortname)) {
 810     // probably new installation - lets return to frontpage after this step
 811     // remove settings that we want uninitialised
 812     unset_config('registerauth');
 813     unset_config('timezone'); // Force admin to select timezone!
 814     redirect('upgradesettings.php?return=site');
 815 }
 816
 817 // setup critical warnings before printing admin tree block
 818 $insecuredataroot = is_dataroot_insecure(true);
 819 $SESSION->admin_critical_warning = ($insecuredataroot==INSECURE_DATAROOT_ERROR);
 820
 821 $adminroot = admin_get_root();
 822
 823 // Check if there are any new admin settings which have still yet to be set
 824 if (any_new_admin_settings($adminroot)) {
 825     redirect('upgradesettings.php');
 826 }
 827
 828 // Return to original page that started the plugin uninstallation if necessary.
 829 if (isset($SESSION->pluginuninstallreturn)) {
 830     $return = $SESSION->pluginuninstallreturn;
 831     unset($SESSION->pluginuninstallreturn);
 832     if ($return) {
 833         redirect($return);
 834     }
 835 }
 836
 837 // If site registration needs updating, redirect.
 838 \core\hub\registration::registration_reminder('/admin/index.php');
 839
 840 // Everything should now be set up, and the user is an admin
 841
 842 // Print default admin page with notifications.
 843 $errorsdisplayed = defined('WARN_DISPLAY_ERRORS_ENABLED');
 844
 845 $lastcron = get_config('tool_task', 'lastcronstart');
 846 $cronoverdue = ($lastcron < time() - 3600 * 24);
 847 $lastcroninterval = get_config('tool_task', 'lastcroninterval');
 848
 849 $expectedfrequency = $CFG->expectedcronfrequency ?? MINSECS;
 850 $croninfrequent = !$cronoverdue && ($lastcroninterval > ($expectedfrequency + MINSECS) || $lastcron < time() - $expectedfrequency);
 851 $dbproblems = $DB->diagnose();
 852 $maintenancemode = !empty($CFG->maintenance_enabled);
 853
 854 // Available updates for Moodle core.
 855 $updateschecker = \core\update\checker::instance();
 856 $availableupdates = array();
 857 $availableupdatesfetch = null;
 858
 859 if ($updateschecker->enabled()) {
 860     // Only compute the update information when it is going to be displayed to the user.
 861     $availableupdates['core'] = $updateschecker->get_update_info('core',
 862         array('minmaturity' => $CFG->updateminmaturity, 'notifybuilds' => $CFG->updatenotifybuilds));
 863
 864     // Available updates for contributed plugins
 865     $pluginman = core_plugin_manager::instance();
 866     foreach ($pluginman->get_plugins() as $plugintype => $plugintypeinstances) {
 867         foreach ($plugintypeinstances as $pluginname => $plugininfo) {
 868             $pluginavailableupdates = $plugininfo->available_updates();
 869             if (!empty($pluginavailableupdates)) {
 870                 foreach ($pluginavailableupdates as $pluginavailableupdate) {
 871                     if (!isset($availableupdates[$plugintype.'_'.$pluginname])) {
 872                         $availableupdates[$plugintype.'_'.$pluginname] = array();
 873                     }
 874                     $availableupdates[$plugintype.'_'.$pluginname][] = $pluginavailableupdate;
 875                 }
 876             }
 877         }
 878     }
 879
 880     // The timestamp of the most recent check for available updates
 881     $availableupdatesfetch = $updateschecker->get_last_timefetched();
 882 }
 883
 884 $buggyiconvnomb = (!function_exists('mb_convert_encoding') and @iconv('UTF-8', 'UTF-8//IGNORE', '100'.chr(130).'€') !== '100€');
 885 //check if the site is registered on Moodle.org
 886 $registered = \core\hub\registration::is_registered();
 887 // Check if there are any cache warnings.
 888 $cachewarnings = cache_helper::warnings();
 889 // Check if there are events 1 API handlers.
 890 $eventshandlers = $DB->get_records_sql('SELECT DISTINCT component FROM {events_handlers}');
 891 $themedesignermode = !empty($CFG->themedesignermode);
 892 $mobileconfigured = !empty($CFG->enablemobilewebservice);
 893 $invalidforgottenpasswordurl = !empty($CFG->forgottenpasswordurl) && empty(clean_param($CFG->forgottenpasswordurl, PARAM_URL));
 894
 895 // Check if a directory with development libraries exists.
 896 if (empty($CFG->disabledevlibdirscheck) && (is_dir($CFG->dirroot.'/vendor') || is_dir($CFG->dirroot.'/node_modules'))) {
 897     $devlibdir = true;
 898 } else {
 899     $devlibdir = false;
 900 }
 901 // Check if the site is being foced onto ssl.
 902 $overridetossl = !empty($CFG->overridetossl);
 903
 904 // Check if moodle campaign content setting is enabled or not.
 905 $showcampaigncontent = !isset($CFG->showcampaigncontent) || $CFG->showcampaigncontent;
 906
 907 // Encourage admins to enable the user feedback feature if it is not enabled already.
 908 $showfeedbackencouragement = empty($CFG->enableuserfeedback);
 909
 910 admin_externalpage_setup('adminnotifications');
 911
 912 $output = $PAGE->get_renderer('core', 'admin');
 913
 914 echo $output->admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed, $cronoverdue, $dbproblems,
 915                                        $maintenancemode, $availableupdates, $availableupdatesfetch, $buggyiconvnomb,
 916                                        $registered, $cachewarnings, $eventshandlers, $themedesignermode, $devlibdir,
 917                                        $mobileconfigured, $overridetossl, $invalidforgottenpasswordurl, $croninfrequent,
 918                                        $showcampaigncontent, $showfeedbackencouragement);