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 // Make sure mbstring extension is available.
  57 if (!extension_loaded('mbstring')) {
  58     echo 'Moodle requires the mbstring PHP extension. Please install or enable the mbstring extension.';
  59     die();
  60 }
  61
  62 define('NO_OUTPUT_BUFFERING', true);
  63
  64 if (isset($_POST['upgradekey'])) {
  65     // Before you start reporting issues about the collision attacks against
  66     // SHA-1, you should understand that we are not actually attempting to do
  67     // any cryptography here. This is hashed purely so that the key is not
  68     // that apparent in the address bar itself. Anyone who catches the HTTP
  69     // traffic can immediately use it as a valid admin key.
  70     header('Location: index.php?cache=0&upgradekeyhash='.sha1($_POST['upgradekey']));
  71     die();
  72 }
  73
  74 if ((isset($_GET['cache']) and $_GET['cache'] === '0')
  75         or (isset($_POST['cache']) and $_POST['cache'] === '0')
  76         or (!isset($_POST['cache']) and !isset($_GET['cache']) and empty($_GET['sesskey']) and empty($_POST['sesskey']))) {
  77     // Prevent caching at all cost when visiting this page directly,
  78     // we redirect to self once we known no upgrades are necessary.
  79     // Note: $_GET and $_POST are used here intentionally because our param cleaning is not loaded yet.
  80     // Note2: the sesskey is present in all block editing hacks, we can not redirect there, so enable caching.
  81     define('CACHE_DISABLE_ALL', true);
  82
  83     // Force OPcache reset if used, we do not want any stale caches
  84     // when detecting if upgrade necessary or when running upgrade.
  85     if (function_exists('opcache_reset')) {
  86         opcache_reset();
  87     }
  88     $cache = 0;
  89
  90 } else {
  91     $cache = 1;
  92 }
  93
  94 require('../config.php');
  95
  96 // Invalidate the cache of version.php in any circumstances to help core_component
  97 // detecting if the version has changed and component cache should be reset.
  98 if (function_exists('opcache_invalidate')) {
  99     opcache_invalidate($CFG->dirroot . '/version.php', true);
 100 }
 101 // Make sure the component cache gets rebuilt if necessary, any method that
 102 // indirectly calls the protected init() method is good here.
 103 core_component::get_core_subsystems();
 104
 105 if (is_major_upgrade_required() && isloggedin()) {
 106     // A major upgrade is required.
 107     // Terminate the session and redirect back here before anything DB-related happens.
 108     redirect_if_major_upgrade_required();
 109 }
 110
 111 require_once($CFG->libdir.'/adminlib.php');    // various admin-only functions
 112 require_once($CFG->libdir.'/upgradelib.php');  // general upgrade/install related functions
 113
 114 $confirmupgrade = optional_param('confirmupgrade', 0, PARAM_BOOL); // Core upgrade confirmed?
 115 $confirmrelease = optional_param('confirmrelease', 0, PARAM_BOOL); // Core release info and server checks confirmed?
 116 $confirmplugins = optional_param('confirmplugincheck', 0, PARAM_BOOL); // Plugins check page confirmed?
 117 $showallplugins = optional_param('showallplugins', 0, PARAM_BOOL); // Show all plugins on the plugins check page?
 118 $agreelicense = optional_param('agreelicense', 0, PARAM_BOOL); // GPL license confirmed for installation?
 119 $fetchupdates = optional_param('fetchupdates', 0, PARAM_BOOL); // Should check for available updates?
 120 $newaddonreq = optional_param('installaddonrequest', null, PARAM_RAW); // Plugin installation requested at moodle.org/plugins.
 121 $upgradekeyhash = optional_param('upgradekeyhash', null, PARAM_ALPHANUM); // Hash of provided upgrade key.
 122 $installdep = optional_param('installdep', null, PARAM_COMPONENT); // Install given missing dependency (required plugin).
 123 $installdepx = optional_param('installdepx', false, PARAM_BOOL); // Install all missing dependencies.
 124 $confirminstalldep = optional_param('confirminstalldep', false, PARAM_BOOL); // Installing dependencies confirmed.
 125 $abortinstall = optional_param('abortinstall', null, PARAM_COMPONENT); // Cancel installation of the given new plugin.
 126 $abortinstallx = optional_param('abortinstallx', null, PARAM_BOOL); // Cancel installation of all new plugins.
 127 $confirmabortinstall = optional_param('confirmabortinstall', false, PARAM_BOOL); // Installation cancel confirmed.
 128 $abortupgrade = optional_param('abortupgrade', null, PARAM_COMPONENT); // Cancel upgrade of the given existing plugin.
 129 $abortupgradex = optional_param('abortupgradex', null, PARAM_BOOL); // Cancel upgrade of all upgradable plugins.
 130 $confirmabortupgrade = optional_param('confirmabortupgrade', false, PARAM_BOOL); // Upgrade cancel confirmed.
 131 $installupdate = optional_param('installupdate', null, PARAM_COMPONENT); // Install given available update.
 132 $installupdateversion = optional_param('installupdateversion', null, PARAM_INT); // Version of the available update to install.
 133 $installupdatex = optional_param('installupdatex', false, PARAM_BOOL); // Install all available plugin updates.
 134 $confirminstallupdate = optional_param('confirminstallupdate', false, PARAM_BOOL); // Available update(s) install confirmed?
 135
 136 if (!empty($CFG->disableupdateautodeploy)) {
 137     // Invalidate all requests to install plugins via the admin UI.
 138     $newaddonreq = null;
 139     $installdep = null;
 140     $installdepx = false;
 141     $abortupgrade = null;
 142     $abortupgradex = null;
 143     $installupdate = null;
 144     $installupdateversion = null;
 145     $installupdatex = false;
 146 }
 147
 148 // Set up PAGE.
 149 $url = new moodle_url('/admin/index.php');
 150 $url->param('cache', $cache);
 151 if (isset($upgradekeyhash)) {
 152     $url->param('upgradekeyhash', $upgradekeyhash);
 153 }
 154 $PAGE->set_url($url);
 155 unset($url);
 156
 157 // Are we returning from an add-on installation request at moodle.org/plugins?
 158 if ($newaddonreq and !$cache and empty($CFG->disableupdateautodeploy)) {
 159     $target = new moodle_url('/admin/tool/installaddon/index.php', array(
 160         'installaddonrequest' => $newaddonreq,
 161         'confirm' => 0));
 162     if (!isloggedin() or isguestuser()) {
 163         // Login and go the the add-on tool page.
 164         $SESSION->wantsurl = $target->out();
 165         redirect(get_login_url());
 166     }
 167     redirect($target);
 168 }
 169
 170 $PAGE->set_pagelayout('admin'); // Set a default pagelayout
 171
 172 $documentationlink = '<a href="http://docs.moodle.org/en/Installation">Installation docs</a>';
 173
 174 // Check some PHP server settings
 175
 176 if (ini_get_bool('session.auto_start')) {
 177     print_error('phpvaroff', 'debug', '', (object)array('name'=>'session.auto_start', 'link'=>$documentationlink));
 178 }
 179
 180 if (!ini_get_bool('file_uploads')) {
 181     print_error('phpvaron', 'debug', '', (object)array('name'=>'file_uploads', 'link'=>$documentationlink));
 182 }
 183
 184 if (is_float_problem()) {
 185     print_error('phpfloatproblem', 'admin', '', $documentationlink);
 186 }
 187
 188 // Set some necessary variables during set-up to avoid PHP warnings later on this page
 189 if (!isset($CFG->release)) {
 190     $CFG->release = '';
 191 }
 192 if (!isset($CFG->version)) {
 193     $CFG->version = '';
 194 }
 195 if (!isset($CFG->branch)) {
 196     $CFG->branch = '';
 197 }
 198
 199 $version = null;
 200 $release = null;
 201 $branch = null;
 202 require("$CFG->dirroot/version.php");       // defines $version, $release, $branch and $maturity
 203 $CFG->target_release = $release;            // used during installation and upgrades
 204
 205 if (!$version or !$release) {
 206     print_error('withoutversion', 'debug'); // without version, stop
 207 }
 208
 209 if (!core_tables_exist()) {
 210     $PAGE->set_pagelayout('maintenance');
 211     $PAGE->set_popup_notification_allowed(false);
 212
 213     // fake some settings
 214     $CFG->docroot = 'http://docs.moodle.org';
 215
 216     $strinstallation = get_string('installation', 'install');
 217
 218     // remove current session content completely
 219     \core\session\manager::terminate_current();
 220
 221     if (empty($agreelicense)) {
 222         $strlicense = get_string('license');
 223
 224         $PAGE->navbar->add($strlicense);
 225         $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 226         $PAGE->set_heading($strinstallation);
 227         $PAGE->set_cacheable(false);
 228
 229         $output = $PAGE->get_renderer('core', 'admin');
 230         echo $output->install_licence_page();
 231         die();
 232     }
 233     if (empty($confirmrelease)) {
 234         require_once($CFG->libdir.'/environmentlib.php');
 235         list($envstatus, $environmentresults) = check_moodle_environment(normalize_version($release), ENV_SELECT_RELEASE);
 236         $strcurrentrelease = get_string('currentrelease');
 237
 238         $PAGE->navbar->add($strcurrentrelease);
 239         $PAGE->set_title($strinstallation);
 240         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 241         $PAGE->set_cacheable(false);
 242
 243         $output = $PAGE->get_renderer('core', 'admin');
 244         echo $output->install_environment_page($maturity, $envstatus, $environmentresults, $release);
 245         die();
 246     }
 247
 248     // check plugin dependencies
 249     $failed = array();
 250     if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed, $CFG->branch)) {
 251         $PAGE->navbar->add(get_string('pluginscheck', 'admin'));
 252         $PAGE->set_title($strinstallation);
 253         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 254
 255         $output = $PAGE->get_renderer('core', 'admin');
 256         $url = new moodle_url($PAGE->url, array('agreelicense' => 1, 'confirmrelease' => 1, 'lang' => $CFG->lang));
 257         echo $output->unsatisfied_dependencies_page($version, $failed, $url);
 258         die();
 259     }
 260     unset($failed);
 261
 262     //TODO: add a page with list of non-standard plugins here
 263
 264     $strdatabasesetup = get_string('databasesetup');
 265     upgrade_init_javascript();
 266
 267     $PAGE->navbar->add($strdatabasesetup);
 268     $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 269     $PAGE->set_heading($strinstallation);
 270     $PAGE->set_cacheable(false);
 271
 272     $output = $PAGE->get_renderer('core', 'admin');
 273     echo $output->header();
 274
 275     if (!$DB->setup_is_unicodedb()) {
 276         if (!$DB->change_db_encoding()) {
 277             // If could not convert successfully, throw error, and prevent installation
 278             print_error('unicoderequired', 'admin');
 279         }
 280     }
 281
 282     install_core($version, true);
 283 }
 284
 285
 286 // Check version of Moodle code on disk compared with database
 287 // and upgrade if possible.
 288
 289 if (!$cache) {
 290     // Do not try to do anything fancy in non-cached mode,
 291     // this prevents themes from fetching data from non-existent tables.
 292     $PAGE->set_pagelayout('maintenance');
 293     $PAGE->set_popup_notification_allowed(false);
 294 }
 295
 296 $stradministration = get_string('administration');
 297 $PAGE->set_context(context_system::instance());
 298
 299 if (empty($CFG->version)) {
 300     print_error('missingconfigversion', 'debug');
 301 }
 302
 303 // Detect config cache inconsistency, this happens when you switch branches on dev servers.
 304 if ($CFG->version != $DB->get_field('config', 'value', array('name'=>'version'))) {
 305     purge_all_caches();
 306     redirect(new moodle_url($PAGE->url), 'Config cache inconsistency detected, resetting caches...');
 307 }
 308
 309 if (!$cache and $version > $CFG->version) {  // upgrade
 310
 311     $PAGE->set_url(new moodle_url($PAGE->url, array(
 312         'confirmupgrade' => $confirmupgrade,
 313         'confirmrelease' => $confirmrelease,
 314         'confirmplugincheck' => $confirmplugins,
 315     )));
 316
 317     check_upgrade_key($upgradekeyhash);
 318
 319     // Warning about upgrading a test site.
 320     $testsite = false;
 321     if (defined('BEHAT_SITE_RUNNING')) {
 322         $testsite = 'behat';
 323     }
 324
 325     if (isset($CFG->themerev)) {
 326         // Store the themerev to restore after purging caches.
 327         $themerev = $CFG->themerev;
 328     }
 329
 330     // We purge all of MUC's caches here.
 331     // Caches are disabled for upgrade by CACHE_DISABLE_ALL so we must set the first arg to true.
 332     // This ensures a real config object is loaded and the stores will be purged.
 333     // This is the only way we can purge custom caches such as memcache or APC.
 334     // Note: all other calls to caches will still used the disabled API.
 335     cache_helper::purge_all(true);
 336     // We then purge the regular caches.
 337     purge_all_caches();
 338
 339     if (isset($themerev)) {
 340         // Restore the themerev
 341         set_config('themerev', $themerev);
 342     }
 343
 344     $output = $PAGE->get_renderer('core', 'admin');
 345
 346     if (upgrade_stale_php_files_present()) {
 347         $PAGE->set_title($stradministration);
 348         $PAGE->set_cacheable(false);
 349
 350         echo $output->upgrade_stale_php_files_page();
 351         die();
 352     }
 353
 354     if (empty($confirmupgrade)) {
 355         $a = new stdClass();
 356         $a->oldversion = "$CFG->release (".sprintf('%.2f', $CFG->version).")";
 357         $a->newversion = "$release (".sprintf('%.2f', $version).")";
 358         $strdatabasechecking = get_string('databasechecking', '', $a);
 359
 360         $PAGE->set_title($stradministration);
 361         $PAGE->set_heading($strdatabasechecking);
 362         $PAGE->set_cacheable(false);
 363
 364         echo $output->upgrade_confirm_page($a->newversion, $maturity, $testsite);
 365         die();
 366
 367     } else if (empty($confirmrelease)) {
 368         require_once($CFG->libdir.'/environmentlib.php');
 369         list($envstatus, $environmentresults) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 370         $strcurrentrelease = get_string('currentrelease');
 371
 372         $PAGE->navbar->add($strcurrentrelease);
 373         $PAGE->set_title($strcurrentrelease);
 374         $PAGE->set_heading($strcurrentrelease);
 375         $PAGE->set_cacheable(false);
 376
 377         echo $output->upgrade_environment_page($release, $envstatus, $environmentresults);
 378         die();
 379
 380     } else if (empty($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         $pluginman = core_plugin_manager::instance();
 389
 390         // Check for available updates.
 391         if ($fetchupdates) {
 392             // No sesskey support guaranteed here, because sessions might not work yet.
 393             $updateschecker = \core\update\checker::instance();
 394             if ($updateschecker->enabled()) {
 395                 $updateschecker->fetch();
 396             }
 397             redirect($PAGE->url);
 398         }
 399
 400         // Cancel all plugin installations.
 401         if ($abortinstallx) {
 402             // No sesskey support guaranteed here, because sessions might not work yet.
 403             $abortables = $pluginman->list_cancellable_installations();
 404             if ($abortables) {
 405                 if ($confirmabortinstall) {
 406                     foreach ($abortables as $plugin) {
 407                         $pluginman->cancel_plugin_installation($plugin->component);
 408                     }
 409                     redirect($PAGE->url);
 410                 } else {
 411                     $continue = new moodle_url($PAGE->url, array('abortinstallx' => $abortinstallx, 'confirmabortinstall' => 1));
 412                     echo $output->upgrade_confirm_abort_install_page($abortables, $continue);
 413                     die();
 414                 }
 415             }
 416             redirect($PAGE->url);
 417         }
 418
 419         // Cancel single plugin installation.
 420         if ($abortinstall) {
 421             // No sesskey support guaranteed here, because sessions might not work yet.
 422             if ($confirmabortinstall) {
 423                 $pluginman->cancel_plugin_installation($abortinstall);
 424                 redirect($PAGE->url);
 425             } else {
 426                 $continue = new moodle_url($PAGE->url, array('abortinstall' => $abortinstall, 'confirmabortinstall' => 1));
 427                 $abortable = $pluginman->get_plugin_info($abortinstall);
 428                 if ($pluginman->can_cancel_plugin_installation($abortable)) {
 429                     echo $output->upgrade_confirm_abort_install_page(array($abortable), $continue);
 430                     die();
 431                 }
 432                 redirect($PAGE->url);
 433             }
 434         }
 435
 436         // Cancel all plugins upgrades (that is, restore archived versions).
 437         if ($abortupgradex) {
 438             // No sesskey support guaranteed here, because sessions might not work yet.
 439             $restorable = $pluginman->list_restorable_archives();
 440             if ($restorable) {
 441                 upgrade_install_plugins($restorable, $confirmabortupgrade,
 442                     get_string('cancelupgradehead', 'core_plugin'),
 443                     new moodle_url($PAGE->url, array('abortupgradex' => 1, 'confirmabortupgrade' => 1))
 444                 );
 445             }
 446             redirect($PAGE->url);
 447         }
 448
 449         // Cancel single plugin upgrade (that is, install the archived version).
 450         if ($abortupgrade) {
 451             // No sesskey support guaranteed here, because sessions might not work yet.
 452             $restorable = $pluginman->list_restorable_archives();
 453             if (isset($restorable[$abortupgrade])) {
 454                 $restorable = array($restorable[$abortupgrade]);
 455                 upgrade_install_plugins($restorable, $confirmabortupgrade,
 456                     get_string('cancelupgradehead', 'core_plugin'),
 457                     new moodle_url($PAGE->url, array('abortupgrade' => $abortupgrade, 'confirmabortupgrade' => 1))
 458                 );
 459             }
 460             redirect($PAGE->url);
 461         }
 462
 463         // Install all available missing dependencies.
 464         if ($installdepx) {
 465             // No sesskey support guaranteed here, because sessions might not work yet.
 466             $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 467             upgrade_install_plugins($installable, $confirminstalldep,
 468                 get_string('dependencyinstallhead', 'core_plugin'),
 469                 new moodle_url($PAGE->url, array('installdepx' => 1, 'confirminstalldep' => 1))
 470             );
 471         }
 472
 473         // Install single available missing dependency.
 474         if ($installdep) {
 475             // No sesskey support guaranteed here, because sessions might not work yet.
 476             $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 477             if (!empty($installable[$installdep])) {
 478                 $installable = array($installable[$installdep]);
 479                 upgrade_install_plugins($installable, $confirminstalldep,
 480                     get_string('dependencyinstallhead', 'core_plugin'),
 481                     new moodle_url($PAGE->url, array('installdep' => $installdep, 'confirminstalldep' => 1))
 482                 );
 483             }
 484         }
 485
 486         // Install all available updates.
 487         if ($installupdatex) {
 488             // No sesskey support guaranteed here, because sessions might not work yet.
 489             $installable = $pluginman->filter_installable($pluginman->available_updates());
 490             upgrade_install_plugins($installable, $confirminstallupdate,
 491                 get_string('updateavailableinstallallhead', 'core_admin'),
 492                 new moodle_url($PAGE->url, array('installupdatex' => 1, 'confirminstallupdate' => 1))
 493             );
 494         }
 495
 496         // Install single available update.
 497         if ($installupdate and $installupdateversion) {
 498             // No sesskey support guaranteed here, because sessions might not work yet.
 499             if ($pluginman->is_remote_plugin_installable($installupdate, $installupdateversion)) {
 500                 $installable = array($pluginman->get_remote_plugin_info($installupdate, $installupdateversion, true));
 501                 upgrade_install_plugins($installable, $confirminstallupdate,
 502                     get_string('updateavailableinstallallhead', 'core_admin'),
 503                     new moodle_url($PAGE->url, array('installupdate' => $installupdate,
 504                         'installupdateversion' => $installupdateversion, 'confirminstallupdate' => 1)
 505                     )
 506                 );
 507             }
 508         }
 509
 510         echo $output->upgrade_plugin_check_page(core_plugin_manager::instance(), \core\update\checker::instance(),
 511                 $version, $showallplugins, $PAGE->url, new moodle_url($PAGE->url, array('confirmplugincheck' => 1)));
 512         die();
 513
 514     } else {
 515         // Always verify plugin dependencies!
 516         $failed = array();
 517         if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed, $CFG->branch)) {
 518             echo $output->unsatisfied_dependencies_page($version, $failed, new moodle_url($PAGE->url,
 519                 array('confirmplugincheck' => 0)));
 520             die();
 521         }
 522         unset($failed);
 523
 524         // Launch main upgrade.
 525         upgrade_core($version, true);
 526     }
 527 } else if ($version < $CFG->version) {
 528     // better stop here, we can not continue with plugin upgrades or anything else
 529     throw new moodle_exception('downgradedcore', 'error', new moodle_url('/admin/'));
 530 }
 531
 532 // Updated human-readable release version if necessary
 533 if (!$cache and $release <> $CFG->release) {  // Update the release version
 534     set_config('release', $release);
 535 }
 536
 537 if (!$cache and $branch <> $CFG->branch) {  // Update the branch
 538     set_config('branch', $branch);
 539 }
 540
 541 if (!$cache and moodle_needs_upgrading()) {
 542
 543     $PAGE->set_url(new moodle_url($PAGE->url, array(
 544         'confirmrelease' => $confirmrelease,
 545         'confirmplugincheck' => $confirmplugins,
 546     )));
 547
 548     check_upgrade_key($upgradekeyhash);
 549
 550     if (!$PAGE->headerprinted) {
 551         // means core upgrade or installation was not already done
 552
 553         $pluginman = core_plugin_manager::instance();
 554         $output = $PAGE->get_renderer('core', 'admin');
 555
 556         if (empty($confirmrelease)) {
 557             require_once($CFG->libdir . '/environmentlib.php');
 558
 559             list($envstatus, $environmentresults) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 560             $strcurrentrelease = get_string('currentrelease');
 561
 562             $PAGE->navbar->add($strcurrentrelease);
 563             $PAGE->set_title($strcurrentrelease);
 564             $PAGE->set_heading($strcurrentrelease);
 565             $PAGE->set_cacheable(false);
 566
 567             echo $output->upgrade_environment_page($release, $envstatus, $environmentresults);
 568             die();
 569
 570         } else if (!$confirmplugins) {
 571             $strplugincheck = get_string('plugincheck');
 572
 573             $PAGE->navbar->add($strplugincheck);
 574             $PAGE->set_title($strplugincheck);
 575             $PAGE->set_heading($strplugincheck);
 576             $PAGE->set_cacheable(false);
 577
 578             // Check for available updates.
 579             if ($fetchupdates) {
 580                 require_sesskey();
 581                 $updateschecker = \core\update\checker::instance();
 582                 if ($updateschecker->enabled()) {
 583                     $updateschecker->fetch();
 584                 }
 585                 redirect($PAGE->url);
 586             }
 587
 588             // Cancel all plugin installations.
 589             if ($abortinstallx) {
 590                 require_sesskey();
 591                 $abortables = $pluginman->list_cancellable_installations();
 592                 if ($abortables) {
 593                     if ($confirmabortinstall) {
 594                         foreach ($abortables as $plugin) {
 595                             $pluginman->cancel_plugin_installation($plugin->component);
 596                         }
 597                         redirect($PAGE->url);
 598                     } else {
 599                         $continue = new moodle_url($PAGE->url, array('abortinstallx' => $abortinstallx,
 600                             'confirmabortinstall' => 1));
 601                         echo $output->upgrade_confirm_abort_install_page($abortables, $continue);
 602                         die();
 603                     }
 604                 }
 605                 redirect($PAGE->url);
 606             }
 607
 608             // Cancel single plugin installation.
 609             if ($abortinstall) {
 610                 require_sesskey();
 611                 if ($confirmabortinstall) {
 612                     $pluginman->cancel_plugin_installation($abortinstall);
 613                     redirect($PAGE->url);
 614                 } else {
 615                     $continue = new moodle_url($PAGE->url, array('abortinstall' => $abortinstall, 'confirmabortinstall' => 1));
 616                     $abortable = $pluginman->get_plugin_info($abortinstall);
 617                     if ($pluginman->can_cancel_plugin_installation($abortable)) {
 618                         echo $output->upgrade_confirm_abort_install_page(array($abortable), $continue);
 619                         die();
 620                     }
 621                     redirect($PAGE->url);
 622                 }
 623             }
 624
 625             // Cancel all plugins upgrades (that is, restore archived versions).
 626             if ($abortupgradex) {
 627                 require_sesskey();
 628                 $restorable = $pluginman->list_restorable_archives();
 629                 if ($restorable) {
 630                     upgrade_install_plugins($restorable, $confirmabortupgrade,
 631                         get_string('cancelupgradehead', 'core_plugin'),
 632                         new moodle_url($PAGE->url, array('abortupgradex' => 1, 'confirmabortupgrade' => 1))
 633                     );
 634                 }
 635                 redirect($PAGE->url);
 636             }
 637
 638             // Cancel single plugin upgrade (that is, install the archived version).
 639             if ($abortupgrade) {
 640                 require_sesskey();
 641                 $restorable = $pluginman->list_restorable_archives();
 642                 if (isset($restorable[$abortupgrade])) {
 643                     $restorable = array($restorable[$abortupgrade]);
 644                     upgrade_install_plugins($restorable, $confirmabortupgrade,
 645                         get_string('cancelupgradehead', 'core_plugin'),
 646                         new moodle_url($PAGE->url, array('abortupgrade' => $abortupgrade, 'confirmabortupgrade' => 1))
 647                     );
 648                 }
 649                 redirect($PAGE->url);
 650             }
 651
 652             // Install all available missing dependencies.
 653             if ($installdepx) {
 654                 require_sesskey();
 655                 $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 656                 upgrade_install_plugins($installable, $confirminstalldep,
 657                     get_string('dependencyinstallhead', 'core_plugin'),
 658                     new moodle_url($PAGE->url, array('installdepx' => 1, 'confirminstalldep' => 1))
 659                 );
 660             }
 661
 662             // Install single available missing dependency.
 663             if ($installdep) {
 664                 require_sesskey();
 665                 $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 666                 if (!empty($installable[$installdep])) {
 667                     $installable = array($installable[$installdep]);
 668                     upgrade_install_plugins($installable, $confirminstalldep,
 669                         get_string('dependencyinstallhead', 'core_plugin'),
 670                         new moodle_url($PAGE->url, array('installdep' => $installdep, 'confirminstalldep' => 1))
 671                     );
 672                 }
 673             }
 674
 675             // Install all available updates.
 676             if ($installupdatex) {
 677                 require_sesskey();
 678                 $installable = $pluginman->filter_installable($pluginman->available_updates());
 679                 upgrade_install_plugins($installable, $confirminstallupdate,
 680                     get_string('updateavailableinstallallhead', 'core_admin'),
 681                     new moodle_url($PAGE->url, array('installupdatex' => 1, 'confirminstallupdate' => 1))
 682                 );
 683             }
 684
 685             // Install single available update.
 686             if ($installupdate and $installupdateversion) {
 687                 require_sesskey();
 688                 if ($pluginman->is_remote_plugin_installable($installupdate, $installupdateversion)) {
 689                     $installable = array($pluginman->get_remote_plugin_info($installupdate, $installupdateversion, true));
 690                     upgrade_install_plugins($installable, $confirminstallupdate,
 691                         get_string('updateavailableinstallallhead', 'core_admin'),
 692                         new moodle_url($PAGE->url, array('installupdate' => $installupdate,
 693                             'installupdateversion' => $installupdateversion, 'confirminstallupdate' => 1)
 694                         )
 695                     );
 696                 }
 697             }
 698
 699             // Show plugins info.
 700             echo $output->upgrade_plugin_check_page($pluginman, \core\update\checker::instance(),
 701                     $version, $showallplugins,
 702                     new moodle_url($PAGE->url),
 703                     new moodle_url($PAGE->url, array('confirmplugincheck' => 1, 'cache' => 0)));
 704             die();
 705         }
 706
 707         // Make sure plugin dependencies are always checked.
 708         $failed = array();
 709         if (!$pluginman->all_plugins_ok($version, $failed, $CFG->branch)) {
 710             $output = $PAGE->get_renderer('core', 'admin');
 711             echo $output->unsatisfied_dependencies_page($version, $failed, new moodle_url($PAGE->url,
 712                 array('confirmplugincheck' => 0)));
 713             die();
 714         }
 715         unset($failed);
 716     }
 717
 718     // install/upgrade all plugins and other parts
 719     upgrade_noncore(true);
 720 }
 721
 722 // If this is the first install, indicate that this site is fully configured
 723 // except the admin password
 724 if (during_initial_install()) {
 725     set_config('rolesactive', 1); // after this, during_initial_install will return false.
 726     set_config('adminsetuppending', 1);
 727     set_config('registrationpending', 1); // Remind to register site after all other setup is finished.
 728
 729     // Apply default preset, if it is defined in $CFG and has a valid value.
 730     if (!empty($CFG->setsitepresetduringinstall)) {
 731         \core_adminpresets\helper::change_default_preset($CFG->setsitepresetduringinstall);
 732     }
 733
 734     // we need this redirect to setup proper session
 735     upgrade_finished("index.php?sessionstarted=1&amp;lang=$CFG->lang");
 736 }
 737
 738 // make sure admin user is created - this is the last step because we need
 739 // session to be working properly in order to edit admin account
 740  if (!empty($CFG->adminsetuppending)) {
 741     $sessionstarted = optional_param('sessionstarted', 0, PARAM_BOOL);
 742     if (!$sessionstarted) {
 743         redirect("index.php?sessionstarted=1&lang=$CFG->lang");
 744     } else {
 745         $sessionverify = optional_param('sessionverify', 0, PARAM_BOOL);
 746         if (!$sessionverify) {
 747             $SESSION->sessionverify = 1;
 748             redirect("index.php?sessionstarted=1&sessionverify=1&lang=$CFG->lang");
 749         } else {
 750             if (empty($SESSION->sessionverify)) {
 751                 print_error('installsessionerror', 'admin', "index.php?sessionstarted=1&lang=$CFG->lang");
 752             }
 753             unset($SESSION->sessionverify);
 754         }
 755     }
 756
 757     // Cleanup SESSION to make sure other code does not complain in the future.
 758     unset($SESSION->has_timed_out);
 759     unset($SESSION->wantsurl);
 760
 761     // 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
 762     $adminids = explode(',', $CFG->siteadmins);
 763     $adminuser = get_complete_user_data('id', reset($adminids));
 764
 765     if ($adminuser->password === 'adminsetuppending') {
 766         // prevent installation hijacking
 767         if ($adminuser->lastip !== getremoteaddr()) {
 768             print_error('installhijacked', 'admin');
 769         }
 770         // login user and let him set password and admin details
 771         $adminuser->newadminuser = 1;
 772         complete_user_login($adminuser);
 773         redirect("$CFG->wwwroot/user/editadvanced.php?id=$adminuser->id"); // Edit thyself
 774
 775     } else {
 776         unset_config('adminsetuppending');
 777     }
 778
 779 } else {
 780     // just make sure upgrade logging is properly terminated
 781     upgrade_finished('upgradesettings.php');
 782 }
 783
 784 if (has_capability('moodle/site:config', context_system::instance())) {
 785     if ($fetchupdates) {
 786         require_sesskey();
 787         $updateschecker = \core\update\checker::instance();
 788         if ($updateschecker->enabled()) {
 789             $updateschecker->fetch();
 790         }
 791         redirect(new moodle_url('/admin/index.php', array('cache' => 0)));
 792     }
 793 }
 794
 795 // Now we can be sure everything was upgraded and caches work fine,
 796 // redirect if necessary to make sure caching is enabled.
 797 if (!$cache) {
 798     redirect(new moodle_url('/admin/index.php', array('cache' => 1)));
 799 }
 800
 801 // Check for valid admin user - no guest autologin
 802 require_login(0, false);
 803 if (isguestuser()) {
 804     // Login as real user!
 805     $SESSION->wantsurl = (string)new moodle_url('/admin/index.php');
 806     redirect(get_login_url());
 807 }
 808 $context = context_system::instance();
 809
 810 if (!has_capability('moodle/site:config', $context)) {
 811     // Do not throw exception display an empty page with administration menu if visible for current user.
 812     $PAGE->set_title($SITE->fullname);
 813     $PAGE->set_heading($SITE->fullname);
 814     echo $OUTPUT->header();
 815     echo $OUTPUT->footer();
 816     exit;
 817 }
 818
 819 // check that site is properly customized
 820 $site = get_site();
 821 if (empty($site->shortname)) {
 822     // probably new installation - lets return to frontpage after this step
 823     // remove settings that we want uninitialised
 824     unset_config('registerauth');
 825     unset_config('timezone'); // Force admin to select timezone!
 826     redirect('upgradesettings.php?return=site');
 827 }
 828
 829 // setup critical warnings before printing admin tree block
 830 $insecuredataroot = is_dataroot_insecure(true);
 831 $SESSION->admin_critical_warning = ($insecuredataroot==INSECURE_DATAROOT_ERROR);
 832
 833 $adminroot = admin_get_root();
 834 $PAGE->set_primary_active_tab('siteadminnode');
 835
 836 // Check if there are any new admin settings which have still yet to be set
 837 if (any_new_admin_settings($adminroot)) {
 838     redirect('upgradesettings.php');
 839 }
 840
 841 // Return to original page that started the plugin uninstallation if necessary.
 842 if (isset($SESSION->pluginuninstallreturn)) {
 843     $return = $SESSION->pluginuninstallreturn;
 844     unset($SESSION->pluginuninstallreturn);
 845     if ($return) {
 846         redirect($return);
 847     }
 848 }
 849
 850 // If site registration needs updating, redirect.
 851 \core\hub\registration::registration_reminder('/admin/index.php');
 852
 853 // Everything should now be set up, and the user is an admin
 854
 855 // Print default admin page with notifications.
 856 $errorsdisplayed = defined('WARN_DISPLAY_ERRORS_ENABLED');
 857
 858 $lastcron = get_config('tool_task', 'lastcronstart');
 859 $cronoverdue = ($lastcron < time() - 3600 * 24);
 860 $lastcroninterval = get_config('tool_task', 'lastcroninterval');
 861
 862 $expectedfrequency = $CFG->expectedcronfrequency ?? MINSECS;
 863 $croninfrequent = !$cronoverdue && ($lastcroninterval > ($expectedfrequency + MINSECS) || $lastcron < time() - $expectedfrequency);
 864 $dbproblems = $DB->diagnose();
 865 $maintenancemode = !empty($CFG->maintenance_enabled);
 866
 867 // Available updates for Moodle core.
 868 $updateschecker = \core\update\checker::instance();
 869 $availableupdates = array();
 870 $availableupdatesfetch = null;
 871
 872 if ($updateschecker->enabled()) {
 873     // Only compute the update information when it is going to be displayed to the user.
 874     $availableupdates['core'] = $updateschecker->get_update_info('core',
 875         array('minmaturity' => $CFG->updateminmaturity, 'notifybuilds' => $CFG->updatenotifybuilds));
 876
 877     // Available updates for contributed plugins
 878     $pluginman = core_plugin_manager::instance();
 879     foreach ($pluginman->get_plugins() as $plugintype => $plugintypeinstances) {
 880         foreach ($plugintypeinstances as $pluginname => $plugininfo) {
 881             $pluginavailableupdates = $plugininfo->available_updates();
 882             if (!empty($pluginavailableupdates)) {
 883                 foreach ($pluginavailableupdates as $pluginavailableupdate) {
 884                     if (!isset($availableupdates[$plugintype.'_'.$pluginname])) {
 885                         $availableupdates[$plugintype.'_'.$pluginname] = array();
 886                     }
 887                     $availableupdates[$plugintype.'_'.$pluginname][] = $pluginavailableupdate;
 888                 }
 889             }
 890         }
 891     }
 892
 893     // The timestamp of the most recent check for available updates
 894     $availableupdatesfetch = $updateschecker->get_last_timefetched();
 895 }
 896
 897 $buggyiconvnomb = (!function_exists('mb_convert_encoding') and @iconv('UTF-8', 'UTF-8//IGNORE', '100'.chr(130).'€') !== '100€');
 898 //check if the site is registered on Moodle.org
 899 $registered = \core\hub\registration::is_registered();
 900 // Check if there are any cache warnings.
 901 $cachewarnings = cache_helper::warnings();
 902 // Check if there are events 1 API handlers.
 903 $eventshandlers = $DB->get_records_sql('SELECT DISTINCT component FROM {events_handlers}');
 904 $themedesignermode = !empty($CFG->themedesignermode);
 905 $mobileconfigured = !empty($CFG->enablemobilewebservice);
 906 $invalidforgottenpasswordurl = !empty($CFG->forgottenpasswordurl) && empty(clean_param($CFG->forgottenpasswordurl, PARAM_URL));
 907
 908 // Check if a directory with development libraries exists.
 909 if (empty($CFG->disabledevlibdirscheck) && (is_dir($CFG->dirroot.'/vendor') || is_dir($CFG->dirroot.'/node_modules'))) {
 910     $devlibdir = true;
 911 } else {
 912     $devlibdir = false;
 913 }
 914 // Check if the site is being foced onto ssl.
 915 $overridetossl = !empty($CFG->overridetossl);
 916
 917 // Check if moodle campaign content setting is enabled or not.
 918 $showcampaigncontent = !isset($CFG->showcampaigncontent) || $CFG->showcampaigncontent;
 919
 920 // Encourage admins to enable the user feedback feature if it is not enabled already.
 921 $showfeedbackencouragement = empty($CFG->enableuserfeedback);
 922
 923 // Check if the service and support content setting is enabled or not.
 924 $servicesandsupportcontent = !isset($CFG->showservicesandsupportcontent) || $CFG->showservicesandsupportcontent;
 925
 926 // Check whether the XML-RPC protocol is enabled or not.
 927 require_once($CFG->libdir . '/environmentlib.php');
 928 $result = new environment_results('custom_checks');
 929 $result = check_xmlrpc_usage($result);
 930 $xmlrpcwarning = !is_null($result) ? get_string($result->getFeedbackStr(), 'admin') : '';
 931
 932 admin_externalpage_setup('adminnotifications');
 933
 934 $output = $PAGE->get_renderer('core', 'admin');
 935
 936 echo $output->admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed, $cronoverdue, $dbproblems,
 937                                        $maintenancemode, $availableupdates, $availableupdatesfetch, $buggyiconvnomb,
 938                                        $registered, $cachewarnings, $eventshandlers, $themedesignermode, $devlibdir,
 939                                        $mobileconfigured, $overridetossl, $invalidforgottenpasswordurl, $croninfrequent,
 940                                        $showcampaigncontent, $showfeedbackencouragement, $servicesandsupportcontent,
 941                                        $xmlrpcwarning);