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     throw new \moodle_exception('phpvaroff', 'debug', '',
 178         (object)array('name' => 'session.auto_start', 'link' => $documentationlink));
 179 }
 180
 181 if (!ini_get_bool('file_uploads')) {
 182     throw new \moodle_exception('phpvaron', 'debug', '',
 183         (object)array('name' => 'file_uploads', 'link' => $documentationlink));
 184 }
 185
 186 if (is_float_problem()) {
 187     throw new \moodle_exception('phpfloatproblem', 'admin', '', $documentationlink);
 188 }
 189
 190 // Set some necessary variables during set-up to avoid PHP warnings later on this page
 191 if (!isset($CFG->release)) {
 192     $CFG->release = '';
 193 }
 194 if (!isset($CFG->version)) {
 195     $CFG->version = '';
 196 }
 197 if (!isset($CFG->branch)) {
 198     $CFG->branch = '';
 199 }
 200
 201 $version = null;
 202 $release = null;
 203 $branch = null;
 204 require("$CFG->dirroot/version.php");       // defines $version, $release, $branch and $maturity
 205 $CFG->target_release = $release;            // used during installation and upgrades
 206
 207 if (!$version or !$release) {
 208     throw new \moodle_exception('withoutversion', 'debug'); // Without version, stop.
 209 }
 210
 211 if (!core_tables_exist()) {
 212     $PAGE->set_pagelayout('maintenance');
 213     $PAGE->set_popup_notification_allowed(false);
 214
 215     // fake some settings
 216     $CFG->docroot = 'http://docs.moodle.org';
 217
 218     $strinstallation = get_string('installation', 'install');
 219
 220     // remove current session content completely
 221     \core\session\manager::terminate_current();
 222
 223     if (empty($agreelicense)) {
 224         $strlicense = get_string('license');
 225
 226         $PAGE->navbar->add($strlicense);
 227         $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 228         $PAGE->set_heading($strinstallation);
 229         $PAGE->set_cacheable(false);
 230
 231         $output = $PAGE->get_renderer('core', 'admin');
 232         echo $output->install_licence_page();
 233         die();
 234     }
 235     if (empty($confirmrelease)) {
 236         require_once($CFG->libdir.'/environmentlib.php');
 237         list($envstatus, $environmentresults) = check_moodle_environment(normalize_version($release), ENV_SELECT_RELEASE);
 238         $strcurrentrelease = get_string('currentrelease');
 239
 240         $PAGE->navbar->add($strcurrentrelease);
 241         $PAGE->set_title($strinstallation);
 242         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 243         $PAGE->set_cacheable(false);
 244
 245         $output = $PAGE->get_renderer('core', 'admin');
 246         echo $output->install_environment_page($maturity, $envstatus, $environmentresults, $release);
 247         die();
 248     }
 249
 250     // check plugin dependencies
 251     $failed = array();
 252     if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed, $CFG->branch)) {
 253         $PAGE->navbar->add(get_string('pluginscheck', 'admin'));
 254         $PAGE->set_title($strinstallation);
 255         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 256
 257         $output = $PAGE->get_renderer('core', 'admin');
 258         $url = new moodle_url($PAGE->url, array('agreelicense' => 1, 'confirmrelease' => 1, 'lang' => $CFG->lang));
 259         echo $output->unsatisfied_dependencies_page($version, $failed, $url);
 260         die();
 261     }
 262     unset($failed);
 263
 264     //TODO: add a page with list of non-standard plugins here
 265
 266     $strdatabasesetup = get_string('databasesetup');
 267     upgrade_init_javascript();
 268
 269     $PAGE->navbar->add($strdatabasesetup);
 270     $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 271     $PAGE->set_heading($strinstallation);
 272     $PAGE->set_cacheable(false);
 273
 274     $output = $PAGE->get_renderer('core', 'admin');
 275     echo $output->header();
 276
 277     if (!$DB->setup_is_unicodedb()) {
 278         if (!$DB->change_db_encoding()) {
 279             // If could not convert successfully, throw error, and prevent installation
 280             throw new \moodle_exception('unicoderequired', 'admin');
 281         }
 282     }
 283
 284     install_core($version, true);
 285 }
 286
 287
 288 // Check version of Moodle code on disk compared with database
 289 // and upgrade if possible.
 290
 291 if (!$cache) {
 292     // Do not try to do anything fancy in non-cached mode,
 293     // this prevents themes from fetching data from non-existent tables.
 294     $PAGE->set_pagelayout('maintenance');
 295     $PAGE->set_popup_notification_allowed(false);
 296 }
 297
 298 $stradministration = get_string('administration');
 299 $PAGE->set_context(context_system::instance());
 300
 301 if (empty($CFG->version)) {
 302     throw new \moodle_exception('missingconfigversion', 'debug');
 303 }
 304
 305 // Detect config cache inconsistency, this happens when you switch branches on dev servers.
 306 if ($CFG->version != $DB->get_field('config', 'value', array('name'=>'version'))) {
 307     purge_all_caches();
 308     redirect(new moodle_url($PAGE->url), 'Config cache inconsistency detected, resetting caches...');
 309 }
 310
 311 if (!$cache and $version > $CFG->version) {  // upgrade
 312
 313     $PAGE->set_url(new moodle_url($PAGE->url, array(
 314         'confirmupgrade' => $confirmupgrade,
 315         'confirmrelease' => $confirmrelease,
 316         'confirmplugincheck' => $confirmplugins,
 317     )));
 318
 319     check_upgrade_key($upgradekeyhash);
 320
 321     // Warning about upgrading a test site.
 322     $testsite = false;
 323     if (defined('BEHAT_SITE_RUNNING')) {
 324         $testsite = 'behat';
 325     }
 326
 327     if (isset($CFG->themerev)) {
 328         // Store the themerev to restore after purging caches.
 329         $themerev = $CFG->themerev;
 330     }
 331
 332     // We purge all of MUC's caches here.
 333     // Caches are disabled for upgrade by CACHE_DISABLE_ALL so we must set the first arg to true.
 334     // This ensures a real config object is loaded and the stores will be purged.
 335     // This is the only way we can purge custom caches such as memcache or APC.
 336     // Note: all other calls to caches will still used the disabled API.
 337     cache_helper::purge_all(true);
 338     // We then purge the regular caches.
 339     purge_all_caches();
 340
 341     if (isset($themerev)) {
 342         // Restore the themerev
 343         set_config('themerev', $themerev);
 344     }
 345
 346     $output = $PAGE->get_renderer('core', 'admin');
 347
 348     if (upgrade_stale_php_files_present()) {
 349         $PAGE->set_title($stradministration);
 350         $PAGE->set_cacheable(false);
 351
 352         echo $output->upgrade_stale_php_files_page();
 353         die();
 354     }
 355
 356     if (empty($confirmupgrade)) {
 357         $a = new stdClass();
 358         $a->oldversion = "$CFG->release (".sprintf('%.2f', $CFG->version).")";
 359         $a->newversion = "$release (".sprintf('%.2f', $version).")";
 360         $strdatabasechecking = get_string('databasechecking', '', $a);
 361
 362         $PAGE->set_title($stradministration);
 363         $PAGE->set_heading($strdatabasechecking);
 364         $PAGE->set_cacheable(false);
 365
 366         echo $output->upgrade_confirm_page($a->newversion, $maturity, $testsite);
 367         die();
 368
 369     } else if (empty($confirmrelease)) {
 370         require_once($CFG->libdir.'/environmentlib.php');
 371         list($envstatus, $environmentresults) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 372         $strcurrentrelease = get_string('currentrelease');
 373
 374         $PAGE->navbar->add($strcurrentrelease);
 375         $PAGE->set_title($strcurrentrelease);
 376         $PAGE->set_heading($strcurrentrelease);
 377         $PAGE->set_cacheable(false);
 378
 379         echo $output->upgrade_environment_page($release, $envstatus, $environmentresults);
 380         die();
 381
 382     } else if (empty($confirmplugins)) {
 383         $strplugincheck = get_string('plugincheck');
 384
 385         $PAGE->navbar->add($strplugincheck);
 386         $PAGE->set_title($strplugincheck);
 387         $PAGE->set_heading($strplugincheck);
 388         $PAGE->set_cacheable(false);
 389
 390         $pluginman = core_plugin_manager::instance();
 391
 392         // Check for available updates.
 393         if ($fetchupdates) {
 394             // No sesskey support guaranteed here, because sessions might not work yet.
 395             $updateschecker = \core\update\checker::instance();
 396             if ($updateschecker->enabled()) {
 397                 $updateschecker->fetch();
 398             }
 399             redirect($PAGE->url);
 400         }
 401
 402         // Cancel all plugin installations.
 403         if ($abortinstallx) {
 404             // No sesskey support guaranteed here, because sessions might not work yet.
 405             $abortables = $pluginman->list_cancellable_installations();
 406             if ($abortables) {
 407                 if ($confirmabortinstall) {
 408                     foreach ($abortables as $plugin) {
 409                         $pluginman->cancel_plugin_installation($plugin->component);
 410                     }
 411                     redirect($PAGE->url);
 412                 } else {
 413                     $continue = new moodle_url($PAGE->url, array('abortinstallx' => $abortinstallx, 'confirmabortinstall' => 1));
 414                     echo $output->upgrade_confirm_abort_install_page($abortables, $continue);
 415                     die();
 416                 }
 417             }
 418             redirect($PAGE->url);
 419         }
 420
 421         // Cancel single plugin installation.
 422         if ($abortinstall) {
 423             // No sesskey support guaranteed here, because sessions might not work yet.
 424             if ($confirmabortinstall) {
 425                 $pluginman->cancel_plugin_installation($abortinstall);
 426                 redirect($PAGE->url);
 427             } else {
 428                 $continue = new moodle_url($PAGE->url, array('abortinstall' => $abortinstall, 'confirmabortinstall' => 1));
 429                 $abortable = $pluginman->get_plugin_info($abortinstall);
 430                 if ($pluginman->can_cancel_plugin_installation($abortable)) {
 431                     echo $output->upgrade_confirm_abort_install_page(array($abortable), $continue);
 432                     die();
 433                 }
 434                 redirect($PAGE->url);
 435             }
 436         }
 437
 438         // Cancel all plugins upgrades (that is, restore archived versions).
 439         if ($abortupgradex) {
 440             // No sesskey support guaranteed here, because sessions might not work yet.
 441             $restorable = $pluginman->list_restorable_archives();
 442             if ($restorable) {
 443                 upgrade_install_plugins($restorable, $confirmabortupgrade,
 444                     get_string('cancelupgradehead', 'core_plugin'),
 445                     new moodle_url($PAGE->url, array('abortupgradex' => 1, 'confirmabortupgrade' => 1))
 446                 );
 447             }
 448             redirect($PAGE->url);
 449         }
 450
 451         // Cancel single plugin upgrade (that is, install the archived version).
 452         if ($abortupgrade) {
 453             // No sesskey support guaranteed here, because sessions might not work yet.
 454             $restorable = $pluginman->list_restorable_archives();
 455             if (isset($restorable[$abortupgrade])) {
 456                 $restorable = array($restorable[$abortupgrade]);
 457                 upgrade_install_plugins($restorable, $confirmabortupgrade,
 458                     get_string('cancelupgradehead', 'core_plugin'),
 459                     new moodle_url($PAGE->url, array('abortupgrade' => $abortupgrade, 'confirmabortupgrade' => 1))
 460                 );
 461             }
 462             redirect($PAGE->url);
 463         }
 464
 465         // Install all available missing dependencies.
 466         if ($installdepx) {
 467             // No sesskey support guaranteed here, because sessions might not work yet.
 468             $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 469             upgrade_install_plugins($installable, $confirminstalldep,
 470                 get_string('dependencyinstallhead', 'core_plugin'),
 471                 new moodle_url($PAGE->url, array('installdepx' => 1, 'confirminstalldep' => 1))
 472             );
 473         }
 474
 475         // Install single available missing dependency.
 476         if ($installdep) {
 477             // No sesskey support guaranteed here, because sessions might not work yet.
 478             $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 479             if (!empty($installable[$installdep])) {
 480                 $installable = array($installable[$installdep]);
 481                 upgrade_install_plugins($installable, $confirminstalldep,
 482                     get_string('dependencyinstallhead', 'core_plugin'),
 483                     new moodle_url($PAGE->url, array('installdep' => $installdep, 'confirminstalldep' => 1))
 484                 );
 485             }
 486         }
 487
 488         // Install all available updates.
 489         if ($installupdatex) {
 490             // No sesskey support guaranteed here, because sessions might not work yet.
 491             $installable = $pluginman->filter_installable($pluginman->available_updates());
 492             upgrade_install_plugins($installable, $confirminstallupdate,
 493                 get_string('updateavailableinstallallhead', 'core_admin'),
 494                 new moodle_url($PAGE->url, array('installupdatex' => 1, 'confirminstallupdate' => 1))
 495             );
 496         }
 497
 498         // Install single available update.
 499         if ($installupdate and $installupdateversion) {
 500             // No sesskey support guaranteed here, because sessions might not work yet.
 501             if ($pluginman->is_remote_plugin_installable($installupdate, $installupdateversion)) {
 502                 $installable = array($pluginman->get_remote_plugin_info($installupdate, $installupdateversion, true));
 503                 upgrade_install_plugins($installable, $confirminstallupdate,
 504                     get_string('updateavailableinstallallhead', 'core_admin'),
 505                     new moodle_url($PAGE->url, array('installupdate' => $installupdate,
 506                         'installupdateversion' => $installupdateversion, 'confirminstallupdate' => 1)
 507                     )
 508                 );
 509             }
 510         }
 511
 512         echo $output->upgrade_plugin_check_page(core_plugin_manager::instance(), \core\update\checker::instance(),
 513                 $version, $showallplugins, $PAGE->url, new moodle_url($PAGE->url, array('confirmplugincheck' => 1)));
 514         die();
 515
 516     } else {
 517         // Always verify plugin dependencies!
 518         $failed = array();
 519         if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed, $CFG->branch)) {
 520             echo $output->unsatisfied_dependencies_page($version, $failed, new moodle_url($PAGE->url,
 521                 array('confirmplugincheck' => 0)));
 522             die();
 523         }
 524         unset($failed);
 525
 526         // Launch main upgrade.
 527         upgrade_core($version, true);
 528     }
 529 } else if ($version < $CFG->version) {
 530     // better stop here, we can not continue with plugin upgrades or anything else
 531     throw new moodle_exception('downgradedcore', 'error', new moodle_url('/admin/'));
 532 }
 533
 534 // Updated human-readable release version if necessary
 535 if (!$cache and $release <> $CFG->release) {  // Update the release version
 536     set_config('release', $release);
 537 }
 538
 539 if (!$cache and $branch <> $CFG->branch) {  // Update the branch
 540     set_config('branch', $branch);
 541 }
 542
 543 if (!$cache and moodle_needs_upgrading()) {
 544
 545     $PAGE->set_url(new moodle_url($PAGE->url, array(
 546         'confirmrelease' => $confirmrelease,
 547         'confirmplugincheck' => $confirmplugins,
 548     )));
 549
 550     check_upgrade_key($upgradekeyhash);
 551
 552     if (!$PAGE->headerprinted) {
 553         // means core upgrade or installation was not already done
 554
 555         $pluginman = core_plugin_manager::instance();
 556         $output = $PAGE->get_renderer('core', 'admin');
 557
 558         if (empty($confirmrelease)) {
 559             require_once($CFG->libdir . '/environmentlib.php');
 560
 561             list($envstatus, $environmentresults) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 562             $strcurrentrelease = get_string('currentrelease');
 563
 564             $PAGE->navbar->add($strcurrentrelease);
 565             $PAGE->set_title($strcurrentrelease);
 566             $PAGE->set_heading($strcurrentrelease);
 567             $PAGE->set_cacheable(false);
 568
 569             echo $output->upgrade_environment_page($release, $envstatus, $environmentresults);
 570             die();
 571
 572         } else if (!$confirmplugins) {
 573             $strplugincheck = get_string('plugincheck');
 574
 575             $PAGE->navbar->add($strplugincheck);
 576             $PAGE->set_title($strplugincheck);
 577             $PAGE->set_heading($strplugincheck);
 578             $PAGE->set_cacheable(false);
 579
 580             // Check for available updates.
 581             if ($fetchupdates) {
 582                 require_sesskey();
 583                 $updateschecker = \core\update\checker::instance();
 584                 if ($updateschecker->enabled()) {
 585                     $updateschecker->fetch();
 586                 }
 587                 redirect($PAGE->url);
 588             }
 589
 590             // Cancel all plugin installations.
 591             if ($abortinstallx) {
 592                 require_sesskey();
 593                 $abortables = $pluginman->list_cancellable_installations();
 594                 if ($abortables) {
 595                     if ($confirmabortinstall) {
 596                         foreach ($abortables as $plugin) {
 597                             $pluginman->cancel_plugin_installation($plugin->component);
 598                         }
 599                         redirect($PAGE->url);
 600                     } else {
 601                         $continue = new moodle_url($PAGE->url, array('abortinstallx' => $abortinstallx,
 602                             'confirmabortinstall' => 1));
 603                         echo $output->upgrade_confirm_abort_install_page($abortables, $continue);
 604                         die();
 605                     }
 606                 }
 607                 redirect($PAGE->url);
 608             }
 609
 610             // Cancel single plugin installation.
 611             if ($abortinstall) {
 612                 require_sesskey();
 613                 if ($confirmabortinstall) {
 614                     $pluginman->cancel_plugin_installation($abortinstall);
 615                     redirect($PAGE->url);
 616                 } else {
 617                     $continue = new moodle_url($PAGE->url, array('abortinstall' => $abortinstall, 'confirmabortinstall' => 1));
 618                     $abortable = $pluginman->get_plugin_info($abortinstall);
 619                     if ($pluginman->can_cancel_plugin_installation($abortable)) {
 620                         echo $output->upgrade_confirm_abort_install_page(array($abortable), $continue);
 621                         die();
 622                     }
 623                     redirect($PAGE->url);
 624                 }
 625             }
 626
 627             // Cancel all plugins upgrades (that is, restore archived versions).
 628             if ($abortupgradex) {
 629                 require_sesskey();
 630                 $restorable = $pluginman->list_restorable_archives();
 631                 if ($restorable) {
 632                     upgrade_install_plugins($restorable, $confirmabortupgrade,
 633                         get_string('cancelupgradehead', 'core_plugin'),
 634                         new moodle_url($PAGE->url, array('abortupgradex' => 1, 'confirmabortupgrade' => 1))
 635                     );
 636                 }
 637                 redirect($PAGE->url);
 638             }
 639
 640             // Cancel single plugin upgrade (that is, install the archived version).
 641             if ($abortupgrade) {
 642                 require_sesskey();
 643                 $restorable = $pluginman->list_restorable_archives();
 644                 if (isset($restorable[$abortupgrade])) {
 645                     $restorable = array($restorable[$abortupgrade]);
 646                     upgrade_install_plugins($restorable, $confirmabortupgrade,
 647                         get_string('cancelupgradehead', 'core_plugin'),
 648                         new moodle_url($PAGE->url, array('abortupgrade' => $abortupgrade, 'confirmabortupgrade' => 1))
 649                     );
 650                 }
 651                 redirect($PAGE->url);
 652             }
 653
 654             // Install all available missing dependencies.
 655             if ($installdepx) {
 656                 require_sesskey();
 657                 $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 658                 upgrade_install_plugins($installable, $confirminstalldep,
 659                     get_string('dependencyinstallhead', 'core_plugin'),
 660                     new moodle_url($PAGE->url, array('installdepx' => 1, 'confirminstalldep' => 1))
 661                 );
 662             }
 663
 664             // Install single available missing dependency.
 665             if ($installdep) {
 666                 require_sesskey();
 667                 $installable = $pluginman->filter_installable($pluginman->missing_dependencies(true));
 668                 if (!empty($installable[$installdep])) {
 669                     $installable = array($installable[$installdep]);
 670                     upgrade_install_plugins($installable, $confirminstalldep,
 671                         get_string('dependencyinstallhead', 'core_plugin'),
 672                         new moodle_url($PAGE->url, array('installdep' => $installdep, 'confirminstalldep' => 1))
 673                     );
 674                 }
 675             }
 676
 677             // Install all available updates.
 678             if ($installupdatex) {
 679                 require_sesskey();
 680                 $installable = $pluginman->filter_installable($pluginman->available_updates());
 681                 upgrade_install_plugins($installable, $confirminstallupdate,
 682                     get_string('updateavailableinstallallhead', 'core_admin'),
 683                     new moodle_url($PAGE->url, array('installupdatex' => 1, 'confirminstallupdate' => 1))
 684                 );
 685             }
 686
 687             // Install single available update.
 688             if ($installupdate and $installupdateversion) {
 689                 require_sesskey();
 690                 if ($pluginman->is_remote_plugin_installable($installupdate, $installupdateversion)) {
 691                     $installable = array($pluginman->get_remote_plugin_info($installupdate, $installupdateversion, true));
 692                     upgrade_install_plugins($installable, $confirminstallupdate,
 693                         get_string('updateavailableinstallallhead', 'core_admin'),
 694                         new moodle_url($PAGE->url, array('installupdate' => $installupdate,
 695                             'installupdateversion' => $installupdateversion, 'confirminstallupdate' => 1)
 696                         )
 697                     );
 698                 }
 699             }
 700
 701             // Show plugins info.
 702             echo $output->upgrade_plugin_check_page($pluginman, \core\update\checker::instance(),
 703                     $version, $showallplugins,
 704                     new moodle_url($PAGE->url),
 705                     new moodle_url($PAGE->url, array('confirmplugincheck' => 1, 'cache' => 0)));
 706             die();
 707         }
 708
 709         // Make sure plugin dependencies are always checked.
 710         $failed = array();
 711         if (!$pluginman->all_plugins_ok($version, $failed, $CFG->branch)) {
 712             $output = $PAGE->get_renderer('core', 'admin');
 713             echo $output->unsatisfied_dependencies_page($version, $failed, new moodle_url($PAGE->url,
 714                 array('confirmplugincheck' => 0)));
 715             die();
 716         }
 717         unset($failed);
 718     }
 719
 720     // install/upgrade all plugins and other parts
 721     upgrade_noncore(true);
 722 }
 723
 724 // If this is the first install, indicate that this site is fully configured
 725 // except the admin password
 726 if (during_initial_install()) {
 727     set_config('rolesactive', 1); // after this, during_initial_install will return false.
 728     set_config('adminsetuppending', 1);
 729     set_config('registrationpending', 1); // Remind to register site after all other setup is finished.
 730
 731     // Apply default preset, if it is defined in $CFG and has a valid value.
 732     if (!empty($CFG->setsitepresetduringinstall)) {
 733         \core_adminpresets\helper::change_default_preset($CFG->setsitepresetduringinstall);
 734     }
 735
 736     // we need this redirect to setup proper session
 737     upgrade_finished("index.php?sessionstarted=1&amp;lang=$CFG->lang");
 738 }
 739
 740 // make sure admin user is created - this is the last step because we need
 741 // session to be working properly in order to edit admin account
 742  if (!empty($CFG->adminsetuppending)) {
 743     $sessionstarted = optional_param('sessionstarted', 0, PARAM_BOOL);
 744     if (!$sessionstarted) {
 745         redirect("index.php?sessionstarted=1&lang=$CFG->lang");
 746     } else {
 747         $sessionverify = optional_param('sessionverify', 0, PARAM_BOOL);
 748         if (!$sessionverify) {
 749             $SESSION->sessionverify = 1;
 750             redirect("index.php?sessionstarted=1&sessionverify=1&lang=$CFG->lang");
 751         } else {
 752             if (empty($SESSION->sessionverify)) {
 753                 throw new \moodle_exception('installsessionerror', 'admin', "index.php?sessionstarted=1&lang=$CFG->lang");
 754             }
 755             unset($SESSION->sessionverify);
 756         }
 757     }
 758
 759     // Cleanup SESSION to make sure other code does not complain in the future.
 760     unset($SESSION->has_timed_out);
 761     unset($SESSION->wantsurl);
 762
 763     // 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
 764     $adminids = explode(',', $CFG->siteadmins);
 765     $adminuser = get_complete_user_data('id', reset($adminids));
 766
 767     if ($adminuser->password === 'adminsetuppending') {
 768         // prevent installation hijacking
 769         if ($adminuser->lastip !== getremoteaddr()) {
 770             throw new \moodle_exception('installhijacked', 'admin');
 771         }
 772         // login user and let him set password and admin details
 773         $adminuser->newadminuser = 1;
 774         complete_user_login($adminuser);
 775         redirect("$CFG->wwwroot/user/editadvanced.php?id=$adminuser->id"); // Edit thyself
 776
 777     } else {
 778         unset_config('adminsetuppending');
 779     }
 780
 781 } else {
 782     // just make sure upgrade logging is properly terminated
 783     upgrade_finished('upgradesettings.php');
 784 }
 785
 786 if (has_capability('moodle/site:config', context_system::instance())) {
 787     if ($fetchupdates) {
 788         require_sesskey();
 789         $updateschecker = \core\update\checker::instance();
 790         if ($updateschecker->enabled()) {
 791             $updateschecker->fetch();
 792         }
 793         redirect(new moodle_url('/admin/index.php', array('cache' => 0)));
 794     }
 795 }
 796
 797 // Now we can be sure everything was upgraded and caches work fine,
 798 // redirect if necessary to make sure caching is enabled.
 799 if (!$cache) {
 800     redirect(new moodle_url('/admin/index.php', array('cache' => 1)));
 801 }
 802
 803 // Check for valid admin user - no guest autologin
 804 require_login(0, false);
 805 if (isguestuser()) {
 806     // Login as real user!
 807     $SESSION->wantsurl = (string)new moodle_url('/admin/index.php');
 808     redirect(get_login_url());
 809 }
 810 $context = context_system::instance();
 811
 812 if (!has_capability('moodle/site:config', $context)) {
 813     // Do not throw exception display an empty page with administration menu if visible for current user.
 814     $PAGE->set_title($SITE->fullname);
 815     $PAGE->set_heading($SITE->fullname);
 816     echo $OUTPUT->header();
 817     echo $OUTPUT->footer();
 818     exit;
 819 }
 820
 821 // check that site is properly customized
 822 $site = get_site();
 823 if (empty($site->shortname)) {
 824     // probably new installation - lets return to frontpage after this step
 825     // remove settings that we want uninitialised
 826     unset_config('registerauth');
 827     unset_config('timezone'); // Force admin to select timezone!
 828     redirect('upgradesettings.php?return=site');
 829 }
 830
 831 // setup critical warnings before printing admin tree block
 832 $insecuredataroot = is_dataroot_insecure(true);
 833 $SESSION->admin_critical_warning = ($insecuredataroot==INSECURE_DATAROOT_ERROR);
 834
 835 $adminroot = admin_get_root();
 836 $PAGE->set_primary_active_tab('siteadminnode');
 837
 838 // Check if there are any new admin settings which have still yet to be set
 839 if (any_new_admin_settings($adminroot)) {
 840     redirect('upgradesettings.php');
 841 }
 842
 843 // Return to original page that started the plugin uninstallation if necessary.
 844 if (isset($SESSION->pluginuninstallreturn)) {
 845     $return = $SESSION->pluginuninstallreturn;
 846     unset($SESSION->pluginuninstallreturn);
 847     if ($return) {
 848         redirect($return);
 849     }
 850 }
 851
 852 // If site registration needs updating, redirect.
 853 \core\hub\registration::registration_reminder('/admin/index.php');
 854
 855 // Everything should now be set up, and the user is an admin
 856
 857 // Print default admin page with notifications.
 858 $errorsdisplayed = defined('WARN_DISPLAY_ERRORS_ENABLED');
 859
 860 $lastcron = get_config('tool_task', 'lastcronstart');
 861 $cronoverdue = ($lastcron < time() - 3600 * 24);
 862 $lastcroninterval = get_config('tool_task', 'lastcroninterval');
 863
 864 $expectedfrequency = $CFG->expectedcronfrequency ?? MINSECS;
 865 $croninfrequent = !$cronoverdue && ($lastcroninterval > ($expectedfrequency + MINSECS) || $lastcron < time() - $expectedfrequency);
 866 $dbproblems = $DB->diagnose();
 867 $maintenancemode = !empty($CFG->maintenance_enabled);
 868
 869 // Available updates for Moodle core.
 870 $updateschecker = \core\update\checker::instance();
 871 $availableupdates = array();
 872 $availableupdatesfetch = null;
 873
 874 if ($updateschecker->enabled()) {
 875     // Only compute the update information when it is going to be displayed to the user.
 876     $availableupdates['core'] = $updateschecker->get_update_info('core',
 877         array('minmaturity' => $CFG->updateminmaturity, 'notifybuilds' => $CFG->updatenotifybuilds));
 878
 879     // Available updates for contributed plugins
 880     $pluginman = core_plugin_manager::instance();
 881     foreach ($pluginman->get_plugins() as $plugintype => $plugintypeinstances) {
 882         foreach ($plugintypeinstances as $pluginname => $plugininfo) {
 883             $pluginavailableupdates = $plugininfo->available_updates();
 884             if (!empty($pluginavailableupdates)) {
 885                 foreach ($pluginavailableupdates as $pluginavailableupdate) {
 886                     if (!isset($availableupdates[$plugintype.'_'.$pluginname])) {
 887                         $availableupdates[$plugintype.'_'.$pluginname] = array();
 888                     }
 889                     $availableupdates[$plugintype.'_'.$pluginname][] = $pluginavailableupdate;
 890                 }
 891             }
 892         }
 893     }
 894
 895     // The timestamp of the most recent check for available updates
 896     $availableupdatesfetch = $updateschecker->get_last_timefetched();
 897 }
 898
 899 $buggyiconvnomb = (!function_exists('mb_convert_encoding') and @iconv('UTF-8', 'UTF-8//IGNORE', '100'.chr(130).'€') !== '100€');
 900 //check if the site is registered on Moodle.org
 901 $registered = \core\hub\registration::is_registered();
 902 // Check if there are any cache warnings.
 903 $cachewarnings = cache_helper::warnings();
 904 // Check if there are events 1 API handlers.
 905 $eventshandlers = $DB->get_records_sql('SELECT DISTINCT component FROM {events_handlers}');
 906 $themedesignermode = !empty($CFG->themedesignermode);
 907 $mobileconfigured = !empty($CFG->enablemobilewebservice);
 908 $invalidforgottenpasswordurl = !empty($CFG->forgottenpasswordurl) && empty(clean_param($CFG->forgottenpasswordurl, PARAM_URL));
 909
 910 // Check if a directory with development libraries exists.
 911 if (empty($CFG->disabledevlibdirscheck) && (is_dir($CFG->dirroot.'/vendor') || is_dir($CFG->dirroot.'/node_modules'))) {
 912     $devlibdir = true;
 913 } else {
 914     $devlibdir = false;
 915 }
 916 // Check if the site is being foced onto ssl.
 917 $overridetossl = !empty($CFG->overridetossl);
 918
 919 // Check if moodle campaign content setting is enabled or not.
 920 $showcampaigncontent = !isset($CFG->showcampaigncontent) || $CFG->showcampaigncontent;
 921
 922 // Encourage admins to enable the user feedback feature if it is not enabled already.
 923 $showfeedbackencouragement = empty($CFG->enableuserfeedback);
 924
 925 // Check if the service and support content setting is enabled or not.
 926 $servicesandsupportcontent = !isset($CFG->showservicesandsupportcontent) || $CFG->showservicesandsupportcontent;
 927
 928 // Check whether the XML-RPC protocol is enabled or not.
 929 require_once($CFG->libdir . '/environmentlib.php');
 930 $result = new environment_results('custom_checks');
 931 $result = check_xmlrpc_usage($result);
 932 $xmlrpcwarning = !is_null($result) ? get_string($result->getFeedbackStr(), 'admin') : '';
 933
 934 admin_externalpage_setup('adminnotifications');
 935
 936 $output = $PAGE->get_renderer('core', 'admin');
 937
 938 echo $output->admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed, $cronoverdue, $dbproblems,
 939                                        $maintenancemode, $availableupdates, $availableupdatesfetch, $buggyiconvnomb,
 940                                        $registered, $cachewarnings, $eventshandlers, $themedesignermode, $devlibdir,
 941                                        $mobileconfigured, $overridetossl, $invalidforgottenpasswordurl, $croninfrequent,
 942                                        $showcampaigncontent, $showfeedbackencouragement, $servicesandsupportcontent,
 943                                        $xmlrpcwarning);