admin/index.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * Main administration script.
  20  *
  21  * @package    core
  22  * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26 // Check that config.php exists, if not then call the install script
  27 if (!file_exists('../config.php')) {
  28     header('Location: ../install.php');
  29     die();
  30 }
  31
  32 // Check that PHP is of a sufficient version as soon as possible
  33 if (version_compare(phpversion(), '5.3.3') < 0) {
  34     $phpversion = phpversion();
  35     // do NOT localise - lang strings would not work here and we CAN NOT move it to later place
  36     echo "Moodle 2.5 or later requires at least PHP 5.3.3 (currently using version $phpversion).<br />";
  37     echo "Please upgrade your server software or install older Moodle version.";
  38     die();
  39 }
  40
  41 // make sure iconv is available and actually works
  42 if (!function_exists('iconv')) {
  43     // this should not happen, this must be very borked install
  44     echo 'Moodle requires the iconv PHP extension. Please install or enable the iconv extension.';
  45     die();
  46 }
  47
  48 define('NO_OUTPUT_BUFFERING', true);
  49
  50 if (empty($_GET['cache']) and empty($_POST['cache']) and empty($_GET['sesskey']) and empty($_POST['sesskey'])) {
  51     // Prevent caching at all cost when visiting this page directly,
  52     // we redirect to self once we known no upgrades are necessary.
  53     // Note: $_GET and $_POST are used here intentionally because our param cleaning is not loaded yet.
  54     // Note2: the sesskey is present in all block editing hacks, we can not redirect there, so enable caching.
  55     define('CACHE_DISABLE_ALL', true);
  56
  57     // Force OPcache reset if used, we do not want any stale caches
  58     // when detecting if upgrade necessary or when running upgrade.
  59     if (function_exists('opcache_reset')) {
  60         opcache_reset();
  61     }
  62     $cache = 0;
  63
  64 } else {
  65     $cache = 1;
  66 }
  67
  68 require('../config.php');
  69
  70 // Invalidate the cache of version.php in any circumstances to help core_component
  71 // detecting if the version has changed and component cache should be reset.
  72 if (function_exists('opcache_invalidate')) {
  73     opcache_invalidate($CFG->dirroot . '/version.php', true);
  74 }
  75 // Make sure the component cache gets rebuilt if necessary, any method that
  76 // indirectly calls the protected init() method is good here.
  77 core_component::get_core_subsystems();
  78
  79 require_once($CFG->libdir.'/adminlib.php');    // various admin-only functions
  80 require_once($CFG->libdir.'/upgradelib.php');  // general upgrade/install related functions
  81
  82 $id             = optional_param('id', '', PARAM_TEXT);
  83 $confirmupgrade = optional_param('confirmupgrade', 0, PARAM_BOOL);
  84 $confirmrelease = optional_param('confirmrelease', 0, PARAM_BOOL);
  85 $confirmplugins = optional_param('confirmplugincheck', 0, PARAM_BOOL);
  86 $showallplugins = optional_param('showallplugins', 0, PARAM_BOOL);
  87 $agreelicense   = optional_param('agreelicense', 0, PARAM_BOOL);
  88 $fetchupdates   = optional_param('fetchupdates', 0, PARAM_BOOL);
  89 $newaddonreq    = optional_param('installaddonrequest', null, PARAM_RAW);
  90
  91 // Set up PAGE.
  92 $url = new moodle_url('/admin/index.php');
  93 if ($cache) {
  94     $url->param('cache', 1);
  95 }
  96 $PAGE->set_url($url);
  97 unset($url);
  98
  99 // Are we returning from an add-on installation request at moodle.org/plugins?
 100 if ($newaddonreq and !$cache and empty($CFG->disableonclickaddoninstall)) {
 101     $target = new moodle_url('/admin/tool/installaddon/index.php', array(
 102         'installaddonrequest' => $newaddonreq,
 103         'confirm' => 0));
 104     if (!isloggedin() or isguestuser()) {
 105         // Login and go the the add-on tool page.
 106         $SESSION->wantsurl = $target->out();
 107         redirect(get_login_url());
 108     }
 109     redirect($target);
 110 }
 111
 112 $PAGE->set_pagelayout('admin'); // Set a default pagelayout
 113
 114 $documentationlink = '<a href="http://docs.moodle.org/en/Installation">Installation docs</a>';
 115
 116 // Check some PHP server settings
 117
 118 if (ini_get_bool('session.auto_start')) {
 119     print_error('phpvaroff', 'debug', '', (object)array('name'=>'session.auto_start', 'link'=>$documentationlink));
 120 }
 121
 122 if (ini_get_bool('magic_quotes_runtime')) {
 123     print_error('phpvaroff', 'debug', '', (object)array('name'=>'magic_quotes_runtime', 'link'=>$documentationlink));
 124 }
 125
 126 if (!ini_get_bool('file_uploads')) {
 127     print_error('phpvaron', 'debug', '', (object)array('name'=>'file_uploads', 'link'=>$documentationlink));
 128 }
 129
 130 if (is_float_problem()) {
 131     print_error('phpfloatproblem', 'admin', '', $documentationlink);
 132 }
 133
 134 // Set some necessary variables during set-up to avoid PHP warnings later on this page
 135 if (!isset($CFG->release)) {
 136     $CFG->release = '';
 137 }
 138 if (!isset($CFG->version)) {
 139     $CFG->version = '';
 140 }
 141 if (!isset($CFG->branch)) {
 142     $CFG->branch = '';
 143 }
 144
 145 $version = null;
 146 $release = null;
 147 $branch = null;
 148 require("$CFG->dirroot/version.php");       // defines $version, $release, $branch and $maturity
 149 $CFG->target_release = $release;            // used during installation and upgrades
 150
 151 if (!$version or !$release) {
 152     print_error('withoutversion', 'debug'); // without version, stop
 153 }
 154
 155 if (!core_tables_exist()) {
 156     $PAGE->set_pagelayout('maintenance');
 157     $PAGE->set_popup_notification_allowed(false);
 158
 159     // fake some settings
 160     $CFG->docroot = 'http://docs.moodle.org';
 161
 162     $strinstallation = get_string('installation', 'install');
 163
 164     // remove current session content completely
 165     \core\session\manager::terminate_current();
 166
 167     if (empty($agreelicense)) {
 168         $strlicense = get_string('license');
 169
 170         $PAGE->navbar->add($strlicense);
 171         $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 172         $PAGE->set_heading($strinstallation);
 173         $PAGE->set_cacheable(false);
 174
 175         /** @var core_admin_renderer $output */
 176         $output = $PAGE->get_renderer('core', 'admin');
 177         echo $output->install_licence_page();
 178         die();
 179     }
 180     if (empty($confirmrelease)) {
 181         require_once($CFG->libdir.'/environmentlib.php');
 182         list($envstatus, $environment_results) = check_moodle_environment(normalize_version($release), ENV_SELECT_RELEASE);
 183         $strcurrentrelease = get_string('currentrelease');
 184
 185         $PAGE->navbar->add($strcurrentrelease);
 186         $PAGE->set_title($strinstallation);
 187         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 188         $PAGE->set_cacheable(false);
 189
 190         /** @var core_admin_renderer $output */
 191         $output = $PAGE->get_renderer('core', 'admin');
 192         echo $output->install_environment_page($maturity, $envstatus, $environment_results, $release);
 193         die();
 194     }
 195
 196     // check plugin dependencies
 197     $failed = array();
 198     if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed)) {
 199         $PAGE->navbar->add(get_string('pluginscheck', 'admin'));
 200         $PAGE->set_title($strinstallation);
 201         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 202
 203         $output = $PAGE->get_renderer('core', 'admin');
 204         $url = new moodle_url('/admin/index.php', array('agreelicense' => 1, 'confirmrelease' => 1, 'lang' => $CFG->lang));
 205         echo $output->unsatisfied_dependencies_page($version, $failed, $url);
 206         die();
 207     }
 208     unset($failed);
 209
 210     //TODO: add a page with list of non-standard plugins here
 211
 212     $strdatabasesetup = get_string('databasesetup');
 213     upgrade_init_javascript();
 214
 215     $PAGE->navbar->add($strdatabasesetup);
 216     $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 217     $PAGE->set_heading($strinstallation);
 218     $PAGE->set_cacheable(false);
 219
 220     $output = $PAGE->get_renderer('core', 'admin');
 221     echo $output->header();
 222
 223     if (!$DB->setup_is_unicodedb()) {
 224         if (!$DB->change_db_encoding()) {
 225             // If could not convert successfully, throw error, and prevent installation
 226             print_error('unicoderequired', 'admin');
 227         }
 228     }
 229
 230     install_core($version, true);
 231 }
 232
 233
 234 // Check version of Moodle code on disk compared with database
 235 // and upgrade if possible.
 236
 237 $stradministration = get_string('administration');
 238 $PAGE->set_context(context_system::instance());
 239
 240 if (empty($CFG->version)) {
 241     print_error('missingconfigversion', 'debug');
 242 }
 243
 244 // Detect config cache inconsistency, this happens when you switch branches on dev servers.
 245 if ($CFG->version != $DB->get_field('config', 'value', array('name'=>'version'))) {
 246     purge_all_caches();
 247     redirect(new moodle_url('/admin/index.php'), 'Config cache inconsistency detected, resetting caches...');
 248 }
 249
 250 if (!$cache and $version > $CFG->version) {  // upgrade
 251
 252     // Warning about upgrading a test site.
 253     $testsite = false;
 254     if (defined('BEHAT_SITE_RUNNING')) {
 255         $testsite = 'behat';
 256     }
 257
 258     // We purge all of MUC's caches here.
 259     // Caches are disabled for upgrade by CACHE_DISABLE_ALL so we must set the first arg to true.
 260     // This ensures a real config object is loaded and the stores will be purged.
 261     // This is the only way we can purge custom caches such as memcache or APC.
 262     // Note: all other calls to caches will still used the disabled API.
 263     cache_helper::purge_all(true);
 264     // We then purge the regular caches.
 265     purge_all_caches();
 266
 267     $PAGE->set_pagelayout('maintenance');
 268     $PAGE->set_popup_notification_allowed(false);
 269
 270     if (upgrade_stale_php_files_present()) {
 271         $PAGE->set_title($stradministration);
 272         $PAGE->set_cacheable(false);
 273
 274         /** @var core_admin_renderer $output */
 275         $output = $PAGE->get_renderer('core', 'admin');
 276         echo $output->upgrade_stale_php_files_page();
 277         die();
 278     }
 279
 280     if (empty($confirmupgrade)) {
 281         $a = new stdClass();
 282         $a->oldversion = "$CFG->release (".sprintf('%.2f', $CFG->version).")";
 283         $a->newversion = "$release (".sprintf('%.2f', $version).")";
 284         $strdatabasechecking = get_string('databasechecking', '', $a);
 285
 286         $PAGE->set_title($stradministration);
 287         $PAGE->set_heading($strdatabasechecking);
 288         $PAGE->set_cacheable(false);
 289
 290         /** @var core_admin_renderer $output */
 291         $output = $PAGE->get_renderer('core', 'admin');
 292         echo $output->upgrade_confirm_page($a->newversion, $maturity, $testsite);
 293         die();
 294
 295     } else if (empty($confirmrelease)){
 296         require_once($CFG->libdir.'/environmentlib.php');
 297         list($envstatus, $environment_results) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 298         $strcurrentrelease = get_string('currentrelease');
 299
 300         $PAGE->navbar->add($strcurrentrelease);
 301         $PAGE->set_title($strcurrentrelease);
 302         $PAGE->set_heading($strcurrentrelease);
 303         $PAGE->set_cacheable(false);
 304
 305         /** @var core_admin_renderer $output */
 306         $output = $PAGE->get_renderer('core', 'admin');
 307         echo $output->upgrade_environment_page($release, $envstatus, $environment_results);
 308         die();
 309
 310     } else if (empty($confirmplugins)) {
 311         $strplugincheck = get_string('plugincheck');
 312
 313         $PAGE->navbar->add($strplugincheck);
 314         $PAGE->set_title($strplugincheck);
 315         $PAGE->set_heading($strplugincheck);
 316         $PAGE->set_cacheable(false);
 317
 318         $reloadurl = new moodle_url('/admin/index.php', array('confirmupgrade' => 1, 'confirmrelease' => 1));
 319
 320         /** @var core_admin_renderer $output */
 321         $output = $PAGE->get_renderer('core', 'admin');
 322
 323         // check plugin dependencies first
 324         $failed = array();
 325         if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed)) {
 326             echo $output->unsatisfied_dependencies_page($version, $failed, $reloadurl);
 327             die();
 328         }
 329         unset($failed);
 330
 331         if ($fetchupdates) {
 332             // no sesskey support guaranteed here
 333             if (empty($CFG->disableupdatenotifications)) {
 334                 \core\update\checker::instance()->fetch();
 335             }
 336             redirect($reloadurl);
 337         }
 338
 339         $deployer = \core\update\deployer::instance();
 340         if ($deployer->enabled()) {
 341             $deployer->initialize($reloadurl, $reloadurl);
 342
 343             $deploydata = $deployer->submitted_data();
 344             if (!empty($deploydata)) {
 345                 echo $output->upgrade_plugin_confirm_deploy_page($deployer, $deploydata);
 346                 die();
 347             }
 348         }
 349
 350         echo $output->upgrade_plugin_check_page(core_plugin_manager::instance(), \core\update\checker::instance(),
 351                 $version, $showallplugins, $reloadurl,
 352                 new moodle_url('/admin/index.php', array('confirmupgrade'=>1, 'confirmrelease'=>1, 'confirmplugincheck'=>1)));
 353         die();
 354
 355     } else {
 356         // Launch main upgrade
 357         upgrade_core($version, true);
 358     }
 359 } else if ($version < $CFG->version) {
 360     // better stop here, we can not continue with plugin upgrades or anything else
 361     throw new moodle_exception('downgradedcore', 'error', new moodle_url('/admin/'));
 362 }
 363
 364 // Updated human-readable release version if necessary
 365 if (!$cache and $release <> $CFG->release) {  // Update the release version
 366     set_config('release', $release);
 367 }
 368
 369 if (!$cache and $branch <> $CFG->branch) {  // Update the branch
 370     set_config('branch', $branch);
 371 }
 372
 373 if (!$cache and moodle_needs_upgrading()) {
 374     if (!$PAGE->headerprinted) {
 375         // means core upgrade or installation was not already done
 376         if (!$confirmplugins) {
 377             $strplugincheck = get_string('plugincheck');
 378
 379             $PAGE->set_pagelayout('maintenance');
 380             $PAGE->set_popup_notification_allowed(false);
 381             $PAGE->navbar->add($strplugincheck);
 382             $PAGE->set_title($strplugincheck);
 383             $PAGE->set_heading($strplugincheck);
 384             $PAGE->set_cacheable(false);
 385
 386             if ($fetchupdates) {
 387                 // no sesskey support guaranteed here
 388                 \core\update\checker::instance()->fetch();
 389                 redirect($PAGE->url);
 390             }
 391
 392             $output = $PAGE->get_renderer('core', 'admin');
 393
 394             $deployer = \core\update\deployer::instance();
 395             if ($deployer->enabled()) {
 396                 $deployer->initialize($PAGE->url, $PAGE->url);
 397
 398                 $deploydata = $deployer->submitted_data();
 399                 if (!empty($deploydata)) {
 400                     echo $output->upgrade_plugin_confirm_deploy_page($deployer, $deploydata);
 401                     die();
 402                 }
 403             }
 404
 405             // check plugin dependencies first
 406             $failed = array();
 407             if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed)) {
 408                 echo $output->unsatisfied_dependencies_page($version, $failed, $PAGE->url);
 409                 die();
 410             }
 411             unset($failed);
 412
 413             // dependencies check passed, let's rock!
 414             echo $output->upgrade_plugin_check_page(core_plugin_manager::instance(), \core\update\checker::instance(),
 415                     $version, $showallplugins,
 416                     new moodle_url($PAGE->url),
 417                     new moodle_url('/admin/index.php', array('confirmplugincheck'=>1)));
 418             die();
 419         }
 420     }
 421     // install/upgrade all plugins and other parts
 422     upgrade_noncore(true);
 423 }
 424
 425 // If this is the first install, indicate that this site is fully configured
 426 // except the admin password
 427 if (during_initial_install()) {
 428     set_config('rolesactive', 1); // after this, during_initial_install will return false.
 429     set_config('adminsetuppending', 1);
 430     // we need this redirect to setup proper session
 431     upgrade_finished("index.php?sessionstarted=1&amp;lang=$CFG->lang");
 432 }
 433
 434 // make sure admin user is created - this is the last step because we need
 435 // session to be working properly in order to edit admin account
 436  if (!empty($CFG->adminsetuppending)) {
 437     $sessionstarted = optional_param('sessionstarted', 0, PARAM_BOOL);
 438     if (!$sessionstarted) {
 439         redirect("index.php?sessionstarted=1&lang=$CFG->lang");
 440     } else {
 441         $sessionverify = optional_param('sessionverify', 0, PARAM_BOOL);
 442         if (!$sessionverify) {
 443             $SESSION->sessionverify = 1;
 444             redirect("index.php?sessionstarted=1&sessionverify=1&lang=$CFG->lang");
 445         } else {
 446             if (empty($SESSION->sessionverify)) {
 447                 print_error('installsessionerror', 'admin', "index.php?sessionstarted=1&lang=$CFG->lang");
 448             }
 449             unset($SESSION->sessionverify);
 450         }
 451     }
 452
 453     // Cleanup SESSION to make sure other code does not complain in the future.
 454     unset($SESSION->has_timed_out);
 455     unset($SESSION->wantsurl);
 456
 457     // 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
 458     $adminids = explode(',', $CFG->siteadmins);
 459     $adminuser = get_complete_user_data('id', reset($adminids));
 460
 461     if ($adminuser->password === 'adminsetuppending') {
 462         // prevent installation hijacking
 463         if ($adminuser->lastip !== getremoteaddr()) {
 464             print_error('installhijacked', 'admin');
 465         }
 466         // login user and let him set password and admin details
 467         $adminuser->newadminuser = 1;
 468         complete_user_login($adminuser);
 469         redirect("$CFG->wwwroot/user/editadvanced.php?id=$adminuser->id"); // Edit thyself
 470
 471     } else {
 472         unset_config('adminsetuppending');
 473     }
 474
 475 } else {
 476     // just make sure upgrade logging is properly terminated
 477     upgrade_finished('upgradesettings.php');
 478 }
 479
 480 // Now we can be sure everything was upgraded and caches work fine,
 481 // redirect if necessary to make sure caching is enabled.
 482 if (!$cache) {
 483     redirect(new moodle_url('/admin/index.php', array('cache' => 1)));
 484 }
 485
 486 // Check for valid admin user - no guest autologin
 487 require_login(0, false);
 488 $context = context_system::instance();
 489 require_capability('moodle/site:config', $context);
 490
 491 // check that site is properly customized
 492 $site = get_site();
 493 if (empty($site->shortname)) {
 494     // probably new installation - lets return to frontpage after this step
 495     // remove settings that we want uninitialised
 496     unset_config('registerauth');
 497     redirect('upgradesettings.php?return=site');
 498 }
 499
 500 // Check if we are returning from moodle.org registration and if so, we mark that fact to remove reminders
 501 if (!empty($id) and $id == $CFG->siteidentifier) {
 502     set_config('registered', time());
 503 }
 504
 505 // setup critical warnings before printing admin tree block
 506 $insecuredataroot = is_dataroot_insecure(true);
 507 $SESSION->admin_critical_warning = ($insecuredataroot==INSECURE_DATAROOT_ERROR);
 508
 509 $adminroot = admin_get_root();
 510
 511 // Check if there are any new admin settings which have still yet to be set
 512 if (any_new_admin_settings($adminroot)){
 513     redirect('upgradesettings.php');
 514 }
 515
 516 // Return to original page that started the plugin uninstallation if necessary.
 517 if (isset($SESSION->pluginuninstallreturn)) {
 518     $return = $SESSION->pluginuninstallreturn;
 519     unset($SESSION->pluginuninstallreturn);
 520     if ($return) {
 521         redirect($return);
 522     }
 523 }
 524
 525 // Everything should now be set up, and the user is an admin
 526
 527 // Print default admin page with notifications.
 528 $errorsdisplayed = defined('WARN_DISPLAY_ERRORS_ENABLED');
 529
 530 $lastcron = $DB->get_field_sql('SELECT MAX(lastcron) FROM {modules}');
 531 $cronoverdue = ($lastcron < time() - 3600 * 24);
 532 $dbproblems = $DB->diagnose();
 533 $maintenancemode = !empty($CFG->maintenance_enabled);
 534
 535 // Available updates for Moodle core
 536 $updateschecker = \core\update\checker::instance();
 537 $availableupdates = array();
 538 $availableupdates['core'] = $updateschecker->get_update_info('core',
 539     array('minmaturity' => $CFG->updateminmaturity, 'notifybuilds' => $CFG->updatenotifybuilds));
 540
 541 // Available updates for contributed plugins
 542 $pluginman = core_plugin_manager::instance();
 543 foreach ($pluginman->get_plugins() as $plugintype => $plugintypeinstances) {
 544     foreach ($plugintypeinstances as $pluginname => $plugininfo) {
 545         if (!empty($plugininfo->availableupdates)) {
 546             foreach ($plugininfo->availableupdates as $pluginavailableupdate) {
 547                 if ($pluginavailableupdate->version > $plugininfo->versiondisk) {
 548                     if (!isset($availableupdates[$plugintype.'_'.$pluginname])) {
 549                         $availableupdates[$plugintype.'_'.$pluginname] = array();
 550                     }
 551                     $availableupdates[$plugintype.'_'.$pluginname][] = $pluginavailableupdate;
 552                 }
 553             }
 554         }
 555     }
 556 }
 557
 558 // The timestamp of the most recent check for available updates
 559 $availableupdatesfetch = $updateschecker->get_last_timefetched();
 560
 561 $buggyiconvnomb = (!function_exists('mb_convert_encoding') and @iconv('UTF-8', 'UTF-8//IGNORE', '100'.chr(130).'€') !== '100€');
 562 //check if the site is registered on Moodle.org
 563 $registered = $DB->count_records('registration_hubs', array('huburl' => HUB_MOODLEORGHUBURL, 'confirmed' => 1));
 564
 565 admin_externalpage_setup('adminnotifications');
 566
 567 if ($fetchupdates) {
 568     require_sesskey();
 569     $updateschecker->fetch();
 570     redirect(new moodle_url('/admin/index.php'));
 571 }
 572
 573 $output = $PAGE->get_renderer('core', 'admin');
 574 echo $output->admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed,
 575         $cronoverdue, $dbproblems, $maintenancemode, $availableupdates, $availableupdatesfetch, $buggyiconvnomb,
 576         $registered);