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