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