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
  59 $id             = optional_param('id', '', PARAM_TEXT);
  60 $confirmupgrade = optional_param('confirmupgrade', 0, PARAM_BOOL);
  61 $confirmrelease = optional_param('confirmrelease', 0, PARAM_BOOL);
  62 $confirmplugins = optional_param('confirmplugincheck', 0, PARAM_BOOL);
  63 $showallplugins = optional_param('showallplugins', 0, PARAM_BOOL);
  64 $agreelicense   = optional_param('agreelicense', 0, PARAM_BOOL);
  65
  66 // Check some PHP server settings
  67
  68 $PAGE->set_url('/admin/index.php');
  69 $PAGE->set_pagelayout('admin'); // Set a default pagelayout
  70
  71 $documentationlink = '<a href="http://docs.moodle.org/en/Installation">Installation docs</a>';
  72
  73 if (ini_get_bool('session.auto_start')) {
  74     print_error('phpvaroff', 'debug', '', (object)array('name'=>'session.auto_start', 'link'=>$documentationlink));
  75 }
  76
  77 if (ini_get_bool('magic_quotes_runtime')) {
  78     print_error('phpvaroff', 'debug', '', (object)array('name'=>'magic_quotes_runtime', 'link'=>$documentationlink));
  79 }
  80
  81 if (!ini_get_bool('file_uploads')) {
  82     print_error('phpvaron', 'debug', '', (object)array('name'=>'file_uploads', 'link'=>$documentationlink));
  83 }
  84
  85 if (is_float_problem()) {
  86     print_error('phpfloatproblem', 'admin', '', $documentationlink);
  87 }
  88
  89 // Set some necessary variables during set-up to avoid PHP warnings later on this page
  90 if (!isset($CFG->release)) {
  91     $CFG->release = '';
  92 }
  93 if (!isset($CFG->version)) {
  94     $CFG->version = '';
  95 }
  96
  97 $version = null;
  98 $release = null;
  99 require("$CFG->dirroot/version.php");       // defines $version, $release and $maturity
 100 $CFG->target_release = $release;            // used during installation and upgrades
 101
 102 if (!$version or !$release) {
 103     print_error('withoutversion', 'debug'); // without version, stop
 104 }
 105
 106 if (!isset($maturity)) {
 107     // Fallback for now. Should probably be removed in the future.
 108     $maturity = MATURITY_STABLE;
 109 }
 110
 111 // Turn off xmlstrictheaders during upgrade.
 112 $origxmlstrictheaders = !empty($CFG->xmlstrictheaders);
 113 $CFG->xmlstrictheaders = false;
 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     //TODO: add a page with list of non-standard plugins here
 155
 156     $strdatabasesetup = get_string('databasesetup');
 157     upgrade_init_javascript();
 158
 159     $PAGE->navbar->add($strdatabasesetup);
 160     $PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
 161     $PAGE->set_heading($strinstallation);
 162     $PAGE->set_cacheable(false);
 163
 164     $output = $PAGE->get_renderer('core', 'admin');
 165     echo $output->header();
 166
 167     if (!$DB->setup_is_unicodedb()) {
 168         if (!$DB->change_db_encoding()) {
 169             // If could not convert successfully, throw error, and prevent installation
 170             print_error('unicoderequired', 'admin');
 171         }
 172     }
 173
 174     install_core($version, true);
 175 }
 176
 177
 178 // Check version of Moodle code on disk compared with database
 179 // and upgrade if possible.
 180
 181 $stradministration = get_string('administration');
 182 $PAGE->set_context(get_context_instance(CONTEXT_SYSTEM));
 183
 184 if (empty($CFG->version)) {
 185     print_error('missingconfigversion', 'debug');
 186 }
 187
 188 if ($version > $CFG->version) {  // upgrade
 189     purge_all_caches();
 190     $PAGE->set_pagelayout('maintenance');
 191     $PAGE->set_popup_notification_allowed(false);
 192
 193     if (empty($confirmupgrade)) {
 194         $a->oldversion = "$CFG->release ($CFG->version)";
 195         $a->newversion = "$release ($version)";
 196         $strdatabasechecking = get_string('databasechecking', '', $a);
 197
 198         $PAGE->set_title($stradministration);
 199         $PAGE->set_heading($strdatabasechecking);
 200         $PAGE->set_cacheable(false);
 201
 202         $output = $PAGE->get_renderer('core', 'admin');
 203         echo $output->upgrade_confirm_page($a->newversion, $maturity);
 204         die();
 205
 206     } else if (empty($confirmrelease)){
 207         require_once($CFG->libdir.'/environmentlib.php');
 208         list($envstatus, $environment_results) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 209         $strcurrentrelease = get_string('currentrelease');
 210
 211         $PAGE->navbar->add($strcurrentrelease);
 212         $PAGE->set_title($strcurrentrelease);
 213         $PAGE->set_heading($strcurrentrelease);
 214         $PAGE->set_cacheable(false);
 215
 216         $output = $PAGE->get_renderer('core', 'admin');
 217         echo $output->upgrade_environment_page($release, $envstatus, $environment_results);
 218         die();
 219
 220     } else if (empty($confirmplugins)) {
 221         $strplugincheck = get_string('plugincheck');
 222
 223         $PAGE->navbar->add($strplugincheck);
 224         $PAGE->set_title($strplugincheck);
 225         $PAGE->set_heading($strplugincheck);
 226         $PAGE->set_cacheable(false);
 227
 228         $output = $PAGE->get_renderer('core', 'admin');
 229         echo $output->upgrade_plugin_check_page(plugin_manager::instance(), $version, $showallplugins,
 230                 new moodle_url('/admin/index.php', array('confirmupgrade' => 1, 'confirmrelease' => 1)),
 231                 new moodle_url('/admin/index.php', array('confirmupgrade'=>1, 'confirmrelease'=>1, 'confirmplugincheck'=>1)));
 232         die();
 233
 234     } else {
 235         // Launch main upgrade
 236         upgrade_core($version, true);
 237     }
 238 } else if ($version < $CFG->version) {
 239     // better stop here, we can not continue with plugin upgrades or anything else
 240     throw new moodle_exception('downgradedcore', 'error', new moodle_url('/admin/'));
 241 }
 242
 243 // Updated human-readable release version if necessary
 244 if ($release <> $CFG->release) {  // Update the release version
 245     set_config('release', $release);
 246 }
 247
 248 if (moodle_needs_upgrading()) {
 249     if (!$PAGE->headerprinted) {
 250         // means core upgrade or installation was not already done
 251         if (!$confirmplugins) {
 252             $strplugincheck = get_string('plugincheck');
 253
 254             $PAGE->set_pagelayout('maintenance');
 255             $PAGE->set_popup_notification_allowed(false);
 256             $PAGE->navbar->add($strplugincheck);
 257             $PAGE->set_title($strplugincheck);
 258             $PAGE->set_heading($strplugincheck);
 259             $PAGE->set_cacheable(false);
 260
 261             $output = $PAGE->get_renderer('core', 'admin');
 262             echo $output->upgrade_plugin_check_page(plugin_manager::instance(), $version, $showallplugins,
 263                     new moodle_url('/admin/index.php'),
 264                     new moodle_url('/admin/index.php', array('confirmplugincheck'=>1)));
 265             die();
 266         }
 267     }
 268     // install/upgrade all plugins and other parts
 269     upgrade_noncore(true);
 270 }
 271
 272 // If this is the first install, indicate that this site is fully configured
 273 // except the admin password
 274 if (during_initial_install()) {
 275     set_config('rolesactive', 1); // after this, during_initial_install will return false.
 276     set_config('adminsetuppending', 1);
 277     // we need this redirect to setup proper session
 278     upgrade_finished("index.php?sessionstarted=1&amp;lang=$CFG->lang");
 279 }
 280
 281 // make sure admin user is created - this is the last step because we need
 282 // session to be working properly in order to edit admin account
 283  if (!empty($CFG->adminsetuppending)) {
 284     $sessionstarted = optional_param('sessionstarted', 0, PARAM_BOOL);
 285     if (!$sessionstarted) {
 286         redirect("index.php?sessionstarted=1&lang=$CFG->lang");
 287     } else {
 288         $sessionverify = optional_param('sessionverify', 0, PARAM_BOOL);
 289         if (!$sessionverify) {
 290             $SESSION->sessionverify = 1;
 291             redirect("index.php?sessionstarted=1&sessionverify=1&lang=$CFG->lang");
 292         } else {
 293             if (empty($SESSION->sessionverify)) {
 294                 print_error('installsessionerror', 'admin', "index.php?sessionstarted=1&lang=$CFG->lang");
 295             }
 296             unset($SESSION->sessionverify);
 297         }
 298     }
 299
 300     // 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
 301     $adminuser = get_complete_user_data('id', reset(explode(',', $CFG->siteadmins)));
 302
 303     if ($adminuser->password === 'adminsetuppending') {
 304         // prevent installation hijacking
 305         if ($adminuser->lastip !== getremoteaddr()) {
 306             print_error('installhijacked', 'admin');
 307         }
 308         // login user and let him set password and admin details
 309         $adminuser->newadminuser = 1;
 310         complete_user_login($adminuser);
 311         redirect("$CFG->wwwroot/user/editadvanced.php?id=$adminuser->id"); // Edit thyself
 312
 313     } else {
 314         unset_config('adminsetuppending');
 315     }
 316
 317 } else {
 318     // just make sure upgrade logging is properly terminated
 319     upgrade_finished('upgradesettings.php');
 320 }
 321
 322 // Turn xmlstrictheaders back on now.
 323 $CFG->xmlstrictheaders = $origxmlstrictheaders;
 324 unset($origxmlstrictheaders);
 325
 326 // Check for valid admin user - no guest autologin
 327 require_login(0, false);
 328 $context = get_context_instance(CONTEXT_SYSTEM);
 329 require_capability('moodle/site:config', $context);
 330
 331 // check that site is properly customized
 332 $site = get_site();
 333 if (empty($site->shortname)) {
 334     // probably new installation - lets return to frontpage after this step
 335     // remove settings that we want uninitialised
 336     unset_config('registerauth');
 337     redirect('upgradesettings.php?return=site');
 338 }
 339
 340 // Check if we are returning from moodle.org registration and if so, we mark that fact to remove reminders
 341 if (!empty($id) and $id == $CFG->siteidentifier) {
 342     set_config('registered', time());
 343 }
 344
 345 // setup critical warnings before printing admin tree block
 346 $insecuredataroot = is_dataroot_insecure(true);
 347 $SESSION->admin_critical_warning = ($insecuredataroot==INSECURE_DATAROOT_ERROR);
 348
 349 $adminroot = admin_get_root();
 350
 351 // Check if there are any new admin settings which have still yet to be set
 352 if (any_new_admin_settings($adminroot)){
 353     redirect('upgradesettings.php');
 354 }
 355
 356 // Everything should now be set up, and the user is an admin
 357
 358 // Print default admin page with notifications.
 359 $errorsdisplayed = defined('WARN_DISPLAY_ERRORS_ENABLED');
 360
 361 $lastcron = $DB->get_field_sql('SELECT MAX(lastcron) FROM {modules}');
 362 $cronoverdue = ($lastcron < time() - 3600 * 24);
 363 $dbproblems = $DB->diagnose();
 364 $maintenancemode = !empty($CFG->maintenance_enabled);
 365
 366 admin_externalpage_setup('adminnotifications');
 367 $output = $PAGE->get_renderer('core', 'admin');
 368 echo $output->admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed,
 369         $cronoverdue, $dbproblems, $maintenancemode);