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