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