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(), '5.3.2') < 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 2.1 or later requires at least PHP 5.3.2 (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
  63 // Check some PHP server settings
  64
  65 $PAGE->set_url('/admin/index.php');
  66 $PAGE->set_pagelayout('admin'); // Set a default pagelayout
  67
  68 $documentationlink = '<a href="http://docs.moodle.org/en/Installation">Installation docs</a>';
  69
  70 if (ini_get_bool('session.auto_start')) {
  71     print_error('phpvaroff', 'debug', '', (object)array('name'=>'session.auto_start', 'link'=>$documentationlink));
  72 }
  73
  74 if (ini_get_bool('magic_quotes_runtime')) {
  75     print_error('phpvaroff', 'debug', '', (object)array('name'=>'magic_quotes_runtime', 'link'=>$documentationlink));
  76 }
  77
  78 if (!ini_get_bool('file_uploads')) {
  79     print_error('phpvaron', 'debug', '', (object)array('name'=>'file_uploads', 'link'=>$documentationlink));
  80 }
  81
  82 if (is_float_problem()) {
  83     print_error('phpfloatproblem', 'admin', '', $documentationlink);
  84 }
  85
  86 // Set some necessary variables during set-up to avoid PHP warnings later on this page
  87 if (!isset($CFG->release)) {
  88     $CFG->release = '';
  89 }
  90 if (!isset($CFG->version)) {
  91     $CFG->version = '';
  92 }
  93 if (!isset($CFG->branch)) {
  94     $CFG->branch = '';
  95 }
  96
  97 $version = null;
  98 $release = null;
  99 $branch = null;
 100 require("$CFG->dirroot/version.php");       // defines $version, $release, $branch and $maturity
 101 $CFG->target_release = $release;            // used during installation and upgrades
 102
 103 if (!$version or !$release) {
 104     print_error('withoutversion', 'debug'); // without version, stop
 105 }
 106
 107 if (!core_tables_exist()) {
 108     $PAGE->set_pagelayout('maintenance');
 109     $PAGE->set_popup_notification_allowed(false);
 110
 111     // fake some settings
 112     $CFG->docroot = 'http://docs.moodle.org';
 113
 114     $strinstallation = get_string('installation', 'install');
 115
 116     // remove current session content completely
 117     session_get_instance()->terminate_current();
 118
 119     if (empty($agreelicense)) {
 120         $strlicense = get_string('license');
 121
 122         $PAGE->navbar->add($strlicense);
 123         $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 124         $PAGE->set_heading($strinstallation);
 125         $PAGE->set_cacheable(false);
 126
 127         $output = $PAGE->get_renderer('core', 'admin');
 128         echo $output->install_licence_page();
 129         die();
 130     }
 131     if (empty($confirmrelease)) {
 132         require_once($CFG->libdir.'/environmentlib.php');
 133         list($envstatus, $environment_results) = check_moodle_environment(normalize_version($release), ENV_SELECT_RELEASE);
 134         $strcurrentrelease = get_string('currentrelease');
 135
 136         $PAGE->navbar->add($strcurrentrelease);
 137         $PAGE->set_title($strinstallation);
 138         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 139         $PAGE->set_cacheable(false);
 140
 141         $output = $PAGE->get_renderer('core', 'admin');
 142         echo $output->install_environment_page($maturity, $envstatus, $environment_results, $release);
 143         die();
 144     }
 145
 146     // check plugin dependencies
 147     $failed = array();
 148     if (!plugin_manager::instance()->all_plugins_ok($version, $failed)) {
 149         $PAGE->navbar->add(get_string('pluginscheck', 'admin'));
 150         $PAGE->set_title($strinstallation);
 151         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 152
 153         $output = $PAGE->get_renderer('core', 'admin');
 154         $url = new moodle_url('/admin/index.php', array('agreelicense' => 1, 'confirmrelease' => 1, 'lang' => $CFG->lang));
 155         echo $output->unsatisfied_dependencies_page($version, $failed, $url);
 156         die();
 157     }
 158     unset($failed);
 159
 160     //TODO: add a page with list of non-standard plugins here
 161
 162     $strdatabasesetup = get_string('databasesetup');
 163     upgrade_init_javascript();
 164
 165     $PAGE->navbar->add($strdatabasesetup);
 166     $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 167     $PAGE->set_heading($strinstallation);
 168     $PAGE->set_cacheable(false);
 169
 170     $output = $PAGE->get_renderer('core', 'admin');
 171     echo $output->header();
 172
 173     if (!$DB->setup_is_unicodedb()) {
 174         if (!$DB->change_db_encoding()) {
 175             // If could not convert successfully, throw error, and prevent installation
 176             print_error('unicoderequired', 'admin');
 177         }
 178     }
 179
 180     install_core($version, true);
 181 }
 182
 183
 184 // Check version of Moodle code on disk compared with database
 185 // and upgrade if possible.
 186
 187 $stradministration = get_string('administration');
 188 $PAGE->set_context(context_system::instance());
 189
 190 if (empty($CFG->version)) {
 191     print_error('missingconfigversion', 'debug');
 192 }
 193
 194 if ($version > $CFG->version) {  // upgrade
 195     purge_all_caches();
 196
 197     $PAGE->set_pagelayout('maintenance');
 198     $PAGE->set_popup_notification_allowed(false);
 199
 200     if (upgrade_stale_php_files_present()) {
 201         $PAGE->set_title($stradministration);
 202         $PAGE->set_cacheable(false);
 203
 204         $output = $PAGE->get_renderer('core', 'admin');
 205         echo $output->upgrade_stale_php_files_page();
 206         die();
 207     }
 208
 209     if (empty($confirmupgrade)) {
 210         $a = new stdClass();
 211         $a->oldversion = "$CFG->release ($CFG->version)";
 212         $a->newversion = "$release ($version)";
 213         $strdatabasechecking = get_string('databasechecking', '', $a);
 214
 215         $PAGE->set_title($stradministration);
 216         $PAGE->set_heading($strdatabasechecking);
 217         $PAGE->set_cacheable(false);
 218
 219         $output = $PAGE->get_renderer('core', 'admin');
 220         echo $output->upgrade_confirm_page($a->newversion, $maturity);
 221         die();
 222
 223     } else if (empty($confirmrelease)){
 224         require_once($CFG->libdir.'/environmentlib.php');
 225         list($envstatus, $environment_results) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 226         $strcurrentrelease = get_string('currentrelease');
 227
 228         $PAGE->navbar->add($strcurrentrelease);
 229         $PAGE->set_title($strcurrentrelease);
 230         $PAGE->set_heading($strcurrentrelease);
 231         $PAGE->set_cacheable(false);
 232
 233         $output = $PAGE->get_renderer('core', 'admin');
 234         echo $output->upgrade_environment_page($release, $envstatus, $environment_results);
 235         die();
 236
 237     } else if (empty($confirmplugins)) {
 238         $strplugincheck = get_string('plugincheck');
 239
 240         $PAGE->navbar->add($strplugincheck);
 241         $PAGE->set_title($strplugincheck);
 242         $PAGE->set_heading($strplugincheck);
 243         $PAGE->set_cacheable(false);
 244
 245         $reloadurl = new moodle_url('/admin/index.php', array('confirmupgrade' => 1, 'confirmrelease' => 1));
 246
 247         // check plugin dependencies first
 248         $failed = array();
 249         if (!plugin_manager::instance()->all_plugins_ok($version, $failed)) {
 250             $output = $PAGE->get_renderer('core', 'admin');
 251             echo $output->unsatisfied_dependencies_page($version, $failed, $reloadurl);
 252             die();
 253         }
 254         unset($failed);
 255
 256         if ($fetchupdates) {
 257             // no sesskey support guaranteed here
 258             if (empty($CFG->disableupdatenotifications)) {
 259                 available_update_checker::instance()->fetch();
 260             }
 261             redirect($reloadurl);
 262         }
 263
 264         $output = $PAGE->get_renderer('core', 'admin');
 265
 266         $deployer = available_update_deployer::instance();
 267         if ($deployer->enabled()) {
 268             $deployer->initialize($reloadurl, $reloadurl);
 269
 270             $deploydata = $deployer->submitted_data();
 271             if (!empty($deploydata)) {
 272                 echo $output->upgrade_plugin_confirm_deploy_page($deployer, $deploydata);
 273                 die();
 274             }
 275         }
 276
 277         echo $output->upgrade_plugin_check_page(plugin_manager::instance(), available_update_checker::instance(),
 278                 $version, $showallplugins, $reloadurl,
 279                 new moodle_url('/admin/index.php', array('confirmupgrade'=>1, 'confirmrelease'=>1, 'confirmplugincheck'=>1)));
 280         die();
 281
 282     } else {
 283         // Launch main upgrade
 284         upgrade_core($version, true);
 285     }
 286 } else if ($version < $CFG->version) {
 287     // better stop here, we can not continue with plugin upgrades or anything else
 288     throw new moodle_exception('downgradedcore', 'error', new moodle_url('/admin/'));
 289 }
 290
 291 // Updated human-readable release version if necessary
 292 if ($release <> $CFG->release) {  // Update the release version
 293     set_config('release', $release);
 294 }
 295
 296 if ($branch <> $CFG->branch) {  // Update the branch
 297     set_config('branch', $branch);
 298 }
 299
 300 if (moodle_needs_upgrading()) {
 301     if (!$PAGE->headerprinted) {
 302         // means core upgrade or installation was not already done
 303         if (!$confirmplugins) {
 304             $strplugincheck = get_string('plugincheck');
 305
 306             $PAGE->set_pagelayout('maintenance');
 307             $PAGE->set_popup_notification_allowed(false);
 308             $PAGE->navbar->add($strplugincheck);
 309             $PAGE->set_title($strplugincheck);
 310             $PAGE->set_heading($strplugincheck);
 311             $PAGE->set_cacheable(false);
 312
 313             if ($fetchupdates) {
 314                 // no sesskey support guaranteed here
 315                 available_update_checker::instance()->fetch();
 316                 redirect($PAGE->url);
 317             }
 318
 319             $output = $PAGE->get_renderer('core', 'admin');
 320
 321             $deployer = available_update_deployer::instance();
 322             if ($deployer->enabled()) {
 323                 $deployer->initialize($PAGE->url, $PAGE->url);
 324
 325                 $deploydata = $deployer->submitted_data();
 326                 if (!empty($deploydata)) {
 327                     echo $output->upgrade_plugin_confirm_deploy_page($deployer, $deploydata);
 328                     die();
 329                 }
 330             }
 331
 332             // check plugin dependencies first
 333             $failed = array();
 334             if (!plugin_manager::instance()->all_plugins_ok($version, $failed)) {
 335                 echo $output->unsatisfied_dependencies_page($version, $failed, $PAGE->url);
 336                 die();
 337             }
 338             unset($failed);
 339
 340             // dependencies check passed, let's rock!
 341             echo $output->upgrade_plugin_check_page(plugin_manager::instance(), available_update_checker::instance(),
 342                     $version, $showallplugins,
 343                     new moodle_url($PAGE->url),
 344                     new moodle_url('/admin/index.php', array('confirmplugincheck'=>1)));
 345             die();
 346         }
 347     }
 348     // install/upgrade all plugins and other parts
 349     upgrade_noncore(true);
 350 }
 351
 352 // If this is the first install, indicate that this site is fully configured
 353 // except the admin password
 354 if (during_initial_install()) {
 355     set_config('rolesactive', 1); // after this, during_initial_install will return false.
 356     set_config('adminsetuppending', 1);
 357     // we need this redirect to setup proper session
 358     upgrade_finished("index.php?sessionstarted=1&amp;lang=$CFG->lang");
 359 }
 360
 361 // make sure admin user is created - this is the last step because we need
 362 // session to be working properly in order to edit admin account
 363  if (!empty($CFG->adminsetuppending)) {
 364     $sessionstarted = optional_param('sessionstarted', 0, PARAM_BOOL);
 365     if (!$sessionstarted) {
 366         redirect("index.php?sessionstarted=1&lang=$CFG->lang");
 367     } else {
 368         $sessionverify = optional_param('sessionverify', 0, PARAM_BOOL);
 369         if (!$sessionverify) {
 370             $SESSION->sessionverify = 1;
 371             redirect("index.php?sessionstarted=1&sessionverify=1&lang=$CFG->lang");
 372         } else {
 373             if (empty($SESSION->sessionverify)) {
 374                 print_error('installsessionerror', 'admin', "index.php?sessionstarted=1&lang=$CFG->lang");
 375             }
 376             unset($SESSION->sessionverify);
 377         }
 378     }
 379
 380     // Cleanup SESSION to make sure other code does not complain in the future.
 381     unset($SESSION->has_timed_out);
 382     unset($SESSION->wantsurl);
 383
 384     // 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
 385     $adminids = explode(',', $CFG->siteadmins);
 386     $adminuser = get_complete_user_data('id', reset($adminids));
 387
 388     if ($adminuser->password === 'adminsetuppending') {
 389         // prevent installation hijacking
 390         if ($adminuser->lastip !== getremoteaddr()) {
 391             print_error('installhijacked', 'admin');
 392         }
 393         // login user and let him set password and admin details
 394         $adminuser->newadminuser = 1;
 395         complete_user_login($adminuser);
 396         redirect("$CFG->wwwroot/user/editadvanced.php?id=$adminuser->id"); // Edit thyself
 397
 398     } else {
 399         unset_config('adminsetuppending');
 400     }
 401
 402 } else {
 403     // just make sure upgrade logging is properly terminated
 404     upgrade_finished('upgradesettings.php');
 405 }
 406
 407 // Check for valid admin user - no guest autologin
 408 require_login(0, false);
 409 $context = context_system::instance();
 410 require_capability('moodle/site:config', $context);
 411
 412 // check that site is properly customized
 413 $site = get_site();
 414 if (empty($site->shortname)) {
 415     // probably new installation - lets return to frontpage after this step
 416     // remove settings that we want uninitialised
 417     unset_config('registerauth');
 418     redirect('upgradesettings.php?return=site');
 419 }
 420
 421 // Check if we are returning from moodle.org registration and if so, we mark that fact to remove reminders
 422 if (!empty($id) and $id == $CFG->siteidentifier) {
 423     set_config('registered', time());
 424 }
 425
 426 // setup critical warnings before printing admin tree block
 427 $insecuredataroot = is_dataroot_insecure(true);
 428 $SESSION->admin_critical_warning = ($insecuredataroot==INSECURE_DATAROOT_ERROR);
 429
 430 $adminroot = admin_get_root();
 431
 432 // Check if there are any new admin settings which have still yet to be set
 433 if (any_new_admin_settings($adminroot)){
 434     redirect('upgradesettings.php');
 435 }
 436
 437 // Everything should now be set up, and the user is an admin
 438
 439 // Print default admin page with notifications.
 440 $errorsdisplayed = defined('WARN_DISPLAY_ERRORS_ENABLED');
 441
 442 $lastcron = $DB->get_field_sql('SELECT MAX(lastcron) FROM {modules}');
 443 $cronoverdue = ($lastcron < time() - 3600 * 24);
 444 $dbproblems = $DB->diagnose();
 445 $maintenancemode = !empty($CFG->maintenance_enabled);
 446
 447 // Available updates for Moodle core
 448 $updateschecker = available_update_checker::instance();
 449 $availableupdates = array();
 450 $availableupdates['core'] = $updateschecker->get_update_info('core',
 451     array('minmaturity' => $CFG->updateminmaturity, 'notifybuilds' => $CFG->updatenotifybuilds));
 452
 453 // Available updates for contributed plugins
 454 $pluginman = plugin_manager::instance();
 455 foreach ($pluginman->get_plugins() as $plugintype => $plugintypeinstances) {
 456     foreach ($plugintypeinstances as $pluginname => $plugininfo) {
 457         if (!empty($plugininfo->availableupdates)) {
 458             foreach ($plugininfo->availableupdates as $pluginavailableupdate) {
 459                 if ($pluginavailableupdate->version > $plugininfo->versiondisk) {
 460                     if (!isset($availableupdates[$plugintype.'_'.$pluginname])) {
 461                         $availableupdates[$plugintype.'_'.$pluginname] = array();
 462                     }
 463                     $availableupdates[$plugintype.'_'.$pluginname][] = $pluginavailableupdate;
 464                 }
 465             }
 466         }
 467     }
 468 }
 469
 470 // The timestamp of the most recent check for available updates
 471 $availableupdatesfetch = $updateschecker->get_last_timefetched();
 472
 473 $buggyiconvnomb = (!function_exists('mb_convert_encoding') and @iconv('UTF-8', 'UTF-8//IGNORE', '100'.chr(130).'€') !== '100€');
 474 //check if the site is registered on Moodle.org
 475 $registered = $DB->count_records('registration_hubs', array('huburl' => HUB_MOODLEORGHUBURL, 'confirmed' => 1));
 476
 477 admin_externalpage_setup('adminnotifications');
 478
 479 if ($fetchupdates) {
 480     require_sesskey();
 481     $updateschecker->fetch();
 482     redirect($PAGE->url);
 483 }
 484
 485 $output = $PAGE->get_renderer('core', 'admin');
 486 echo $output->admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed,
 487         $cronoverdue, $dbproblems, $maintenancemode, $availableupdates, $availableupdatesfetch, $buggyiconvnomb,
 488         $registered);