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 $phpversion).<br />";
  37     echo "Please upgrade your server software or install older Moodle version.";
  38     die();
  39 }
  40
  41 // make sure iconv is available and actually works
  42 if (!function_exists('iconv')) {
  43     // this should not happen, this must be very borked install
  44     echo 'Moodle requires the iconv PHP extension. Please install or enable the iconv extension.';
  45     die();
  46 }
  47 if (iconv('UTF-8', 'UTF-8//IGNORE', 'abc') !== 'abc') {
  48     // known to be broken in mid-2011 MAMP installations
  49     echo 'Broken iconv PHP extension detected, installation/upgrade can not continue.';
  50     die();
  51 }
  52
  53 define('NO_OUTPUT_BUFFERING', true);
  54
  55 require('../config.php');
  56 require_once($CFG->libdir.'/adminlib.php');    // various admin-only functions
  57 require_once($CFG->libdir.'/upgradelib.php');  // general upgrade/install related functions
  58 require_once($CFG->libdir.'/pluginlib.php');   // available updates notifications
  59
  60 $id             = optional_param('id', '', PARAM_TEXT);
  61 $confirmupgrade = optional_param('confirmupgrade', 0, PARAM_BOOL);
  62 $confirmrelease = optional_param('confirmrelease', 0, PARAM_BOOL);
  63 $confirmplugins = optional_param('confirmplugincheck', 0, PARAM_BOOL);
  64 $showallplugins = optional_param('showallplugins', 0, PARAM_BOOL);
  65 $agreelicense   = optional_param('agreelicense', 0, PARAM_BOOL);
  66 $fetchupdates   = optional_param('fetchupdates', 0, PARAM_BOOL);
  67
  68 // Check some PHP server settings
  69
  70 $PAGE->set_url('/admin/index.php');
  71 $PAGE->set_pagelayout('admin'); // Set a default pagelayout
  72
  73 $documentationlink = '<a href="http://docs.moodle.org/en/Installation">Installation docs</a>';
  74
  75 if (ini_get_bool('session.auto_start')) {
  76     print_error('phpvaroff', 'debug', '', (object)array('name'=>'session.auto_start', 'link'=>$documentationlink));
  77 }
  78
  79 if (ini_get_bool('magic_quotes_runtime')) {
  80     print_error('phpvaroff', 'debug', '', (object)array('name'=>'magic_quotes_runtime', 'link'=>$documentationlink));
  81 }
  82
  83 if (!ini_get_bool('file_uploads')) {
  84     print_error('phpvaron', 'debug', '', (object)array('name'=>'file_uploads', 'link'=>$documentationlink));
  85 }
  86
  87 if (is_float_problem()) {
  88     print_error('phpfloatproblem', 'admin', '', $documentationlink);
  89 }
  90
  91 // Set some necessary variables during set-up to avoid PHP warnings later on this page
  92 if (!isset($CFG->release)) {
  93     $CFG->release = '';
  94 }
  95 if (!isset($CFG->version)) {
  96     $CFG->version = '';
  97 }
  98
  99 $version = null;
 100 $release = null;
 101 require("$CFG->dirroot/version.php");       // defines $version, $release and $maturity
 102 $CFG->target_release = $release;            // used during installation and upgrades
 103
 104 if (!$version or !$release) {
 105     print_error('withoutversion', 'debug'); // without version, stop
 106 }
 107
 108 // Turn off xmlstrictheaders during upgrade.
 109 $origxmlstrictheaders = !empty($CFG->xmlstrictheaders);
 110 $CFG->xmlstrictheaders = false;
 111
 112 if (!core_tables_exist()) {
 113     $PAGE->set_pagelayout('maintenance');
 114     $PAGE->set_popup_notification_allowed(false);
 115
 116     // fake some settings
 117     $CFG->docroot = 'http://docs.moodle.org';
 118
 119     $strinstallation = get_string('installation', 'install');
 120
 121     // remove current session content completely
 122     session_get_instance()->terminate_current();
 123
 124     if (empty($agreelicense)) {
 125         $strlicense = get_string('license');
 126
 127         $PAGE->navbar->add($strlicense);
 128         $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 129         $PAGE->set_heading($strinstallation);
 130         $PAGE->set_cacheable(false);
 131
 132         $output = $PAGE->get_renderer('core', 'admin');
 133         echo $output->install_licence_page();
 134         die();
 135     }
 136     if (empty($confirmrelease)) {
 137         require_once($CFG->libdir.'/environmentlib.php');
 138         list($envstatus, $environment_results) = check_moodle_environment(normalize_version($release), ENV_SELECT_RELEASE);
 139         $strcurrentrelease = get_string('currentrelease');
 140
 141         $PAGE->navbar->add($strcurrentrelease);
 142         $PAGE->set_title($strinstallation);
 143         $PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
 144         $PAGE->set_cacheable(false);
 145
 146         $output = $PAGE->get_renderer('core', 'admin');
 147         echo $output->install_environment_page($maturity, $envstatus, $environment_results, $release);
 148         die();
 149     }
 150
 151     //TODO: add a page with list of non-standard plugins here
 152
 153     $strdatabasesetup = get_string('databasesetup');
 154     upgrade_init_javascript();
 155
 156     $PAGE->navbar->add($strdatabasesetup);
 157     $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 158     $PAGE->set_heading($strinstallation);
 159     $PAGE->set_cacheable(false);
 160
 161     $output = $PAGE->get_renderer('core', 'admin');
 162     echo $output->header();
 163
 164     if (!$DB->setup_is_unicodedb()) {
 165         if (!$DB->change_db_encoding()) {
 166             // If could not convert successfully, throw error, and prevent installation
 167             print_error('unicoderequired', 'admin');
 168         }
 169     }
 170
 171     install_core($version, true);
 172 }
 173
 174
 175 // Check version of Moodle code on disk compared with database
 176 // and upgrade if possible.
 177
 178 $stradministration = get_string('administration');
 179 $PAGE->set_context(get_context_instance(CONTEXT_SYSTEM));
 180
 181 if (empty($CFG->version)) {
 182     print_error('missingconfigversion', 'debug');
 183 }
 184
 185 if ($version > $CFG->version) {  // upgrade
 186     purge_all_caches();
 187     $PAGE->set_pagelayout('maintenance');
 188     $PAGE->set_popup_notification_allowed(false);
 189
 190     if (upgrade_stale_php_files_present()) {
 191         $PAGE->set_title($stradministration);
 192         $PAGE->set_cacheable(false);
 193
 194         $output = $PAGE->get_renderer('core', 'admin');
 195         echo $output->upgrade_stale_php_files_page();
 196         die();
 197     }
 198
 199     if (empty($confirmupgrade)) {
 200         $a = new stdClass();
 201         $a->oldversion = "$CFG->release ($CFG->version)";
 202         $a->newversion = "$release ($version)";
 203         $strdatabasechecking = get_string('databasechecking', '', $a);
 204
 205         $PAGE->set_title($stradministration);
 206         $PAGE->set_heading($strdatabasechecking);
 207         $PAGE->set_cacheable(false);
 208
 209         $output = $PAGE->get_renderer('core', 'admin');
 210         echo $output->upgrade_confirm_page($a->newversion, $maturity);
 211         die();
 212
 213     } else if (empty($confirmrelease)){
 214         require_once($CFG->libdir.'/environmentlib.php');
 215         list($envstatus, $environment_results) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 216         $strcurrentrelease = get_string('currentrelease');
 217
 218         $PAGE->navbar->add($strcurrentrelease);
 219         $PAGE->set_title($strcurrentrelease);
 220         $PAGE->set_heading($strcurrentrelease);
 221         $PAGE->set_cacheable(false);
 222
 223         $output = $PAGE->get_renderer('core', 'admin');
 224         echo $output->upgrade_environment_page($release, $envstatus, $environment_results);
 225         die();
 226
 227     } else if (empty($confirmplugins)) {
 228         $strplugincheck = get_string('plugincheck');
 229
 230         $PAGE->navbar->add($strplugincheck);
 231         $PAGE->set_title($strplugincheck);
 232         $PAGE->set_heading($strplugincheck);
 233         $PAGE->set_cacheable(false);
 234
 235         $reloadurl = new moodle_url('/admin/index.php', array('confirmupgrade' => 1, 'confirmrelease' => 1));
 236
 237         if ($fetchupdates) {
 238             // no sesskey support guaranteed here
 239             available_update_checker::instance()->fetch();
 240             redirect($reloadurl);
 241         }
 242
 243         $output = $PAGE->get_renderer('core', 'admin');
 244         echo $output->upgrade_plugin_check_page(plugin_manager::instance(), available_update_checker::instance(),
 245                 $version, $showallplugins, $reloadurl,
 246                 new moodle_url('/admin/index.php', array('confirmupgrade'=>1, 'confirmrelease'=>1, 'confirmplugincheck'=>1)));
 247         die();
 248
 249     } else {
 250         // Launch main upgrade
 251         upgrade_core($version, true);
 252     }
 253 } else if ($version < $CFG->version) {
 254     // better stop here, we can not continue with plugin upgrades or anything else
 255     throw new moodle_exception('downgradedcore', 'error', new moodle_url('/admin/'));
 256 }
 257
 258 // Updated human-readable release version if necessary
 259 if ($release <> $CFG->release) {  // Update the release version
 260     set_config('release', $release);
 261 }
 262
 263 if (moodle_needs_upgrading()) {
 264     if (!$PAGE->headerprinted) {
 265         // means core upgrade or installation was not already done
 266         if (!$confirmplugins) {
 267             $strplugincheck = get_string('plugincheck');
 268
 269             $PAGE->set_pagelayout('maintenance');
 270             $PAGE->set_popup_notification_allowed(false);
 271             $PAGE->navbar->add($strplugincheck);
 272             $PAGE->set_title($strplugincheck);
 273             $PAGE->set_heading($strplugincheck);
 274             $PAGE->set_cacheable(false);
 275
 276             if ($fetchupdates) {
 277                 // no sesskey support guaranteed here
 278                 available_update_checker::instance()->fetch();
 279                 redirect($PAGE->url);
 280             }
 281
 282             $output = $PAGE->get_renderer('core', 'admin');
 283             echo $output->upgrade_plugin_check_page(plugin_manager::instance(), available_update_checker::instance(),
 284                     $version, $showallplugins,
 285                     new moodle_url($PAGE->url),
 286                     new moodle_url('/admin/index.php', array('confirmplugincheck'=>1)));
 287             die();
 288         }
 289     }
 290     // install/upgrade all plugins and other parts
 291     upgrade_noncore(true);
 292 }
 293
 294 // If this is the first install, indicate that this site is fully configured
 295 // except the admin password
 296 if (during_initial_install()) {
 297     set_config('rolesactive', 1); // after this, during_initial_install will return false.
 298     set_config('adminsetuppending', 1);
 299     // we need this redirect to setup proper session
 300     upgrade_finished("index.php?sessionstarted=1&amp;lang=$CFG->lang");
 301 }
 302
 303 // make sure admin user is created - this is the last step because we need
 304 // session to be working properly in order to edit admin account
 305  if (!empty($CFG->adminsetuppending)) {
 306     $sessionstarted = optional_param('sessionstarted', 0, PARAM_BOOL);
 307     if (!$sessionstarted) {
 308         redirect("index.php?sessionstarted=1&lang=$CFG->lang");
 309     } else {
 310         $sessionverify = optional_param('sessionverify', 0, PARAM_BOOL);
 311         if (!$sessionverify) {
 312             $SESSION->sessionverify = 1;
 313             redirect("index.php?sessionstarted=1&sessionverify=1&lang=$CFG->lang");
 314         } else {
 315             if (empty($SESSION->sessionverify)) {
 316                 print_error('installsessionerror', 'admin', "index.php?sessionstarted=1&lang=$CFG->lang");
 317             }
 318             unset($SESSION->sessionverify);
 319         }
 320     }
 321
 322     // 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
 323     $adminids = explode(',', $CFG->siteadmins);
 324     $adminuser = get_complete_user_data('id', reset($adminids));
 325
 326     if ($adminuser->password === 'adminsetuppending') {
 327         // prevent installation hijacking
 328         if ($adminuser->lastip !== getremoteaddr()) {
 329             print_error('installhijacked', 'admin');
 330         }
 331         // login user and let him set password and admin details
 332         $adminuser->newadminuser = 1;
 333         complete_user_login($adminuser);
 334         redirect("$CFG->wwwroot/user/editadvanced.php?id=$adminuser->id"); // Edit thyself
 335
 336     } else {
 337         unset_config('adminsetuppending');
 338     }
 339
 340 } else {
 341     // just make sure upgrade logging is properly terminated
 342     upgrade_finished('upgradesettings.php');
 343 }
 344
 345 // Turn xmlstrictheaders back on now.
 346 $CFG->xmlstrictheaders = $origxmlstrictheaders;
 347 unset($origxmlstrictheaders);
 348
 349 // Check for valid admin user - no guest autologin
 350 require_login(0, false);
 351 $context = get_context_instance(CONTEXT_SYSTEM);
 352 require_capability('moodle/site:config', $context);
 353
 354 // check that site is properly customized
 355 $site = get_site();
 356 if (empty($site->shortname)) {
 357     // probably new installation - lets return to frontpage after this step
 358     // remove settings that we want uninitialised
 359     unset_config('registerauth');
 360     redirect('upgradesettings.php?return=site');
 361 }
 362
 363 // Check if we are returning from moodle.org registration and if so, we mark that fact to remove reminders
 364 if (!empty($id) and $id == $CFG->siteidentifier) {
 365     set_config('registered', time());
 366 }
 367
 368 // setup critical warnings before printing admin tree block
 369 $insecuredataroot = is_dataroot_insecure(true);
 370 $SESSION->admin_critical_warning = ($insecuredataroot==INSECURE_DATAROOT_ERROR);
 371
 372 $adminroot = admin_get_root();
 373
 374 // Check if there are any new admin settings which have still yet to be set
 375 if (any_new_admin_settings($adminroot)){
 376     redirect('upgradesettings.php');
 377 }
 378
 379 // Everything should now be set up, and the user is an admin
 380
 381 // Print default admin page with notifications.
 382 $errorsdisplayed = defined('WARN_DISPLAY_ERRORS_ENABLED');
 383
 384 $lastcron = $DB->get_field_sql('SELECT MAX(lastcron) FROM {modules}');
 385 $cronoverdue = ($lastcron < time() - 3600 * 24);
 386 $dbproblems = $DB->diagnose();
 387 $maintenancemode = !empty($CFG->maintenance_enabled);
 388
 389 $updateschecker = available_update_checker::instance();
 390 $availableupdates = $updateschecker->get_update_info('core',
 391     array('minmaturity' => $CFG->updateminmaturity, 'notifybuilds' => $CFG->updatenotifybuilds));
 392 $availableupdatesfetch = $updateschecker->get_last_timefetched();
 393
 394 admin_externalpage_setup('adminnotifications');
 395
 396 if ($fetchupdates) {
 397     require_sesskey();
 398     $updateschecker->fetch();
 399     redirect($PAGE->url);
 400 }
 401
 402 $output = $PAGE->get_renderer('core', 'admin');
 403 echo $output->admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed,
 404         $cronoverdue, $dbproblems, $maintenancemode, $availableupdates, $availableupdatesfetch);