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 (upgrade_stale_php_files_present()) {
 194         $PAGE->set_title($stradministration);
 195         $PAGE->set_cacheable(false);
 196
 197         $output = $PAGE->get_renderer('core', 'admin');
 198         echo $output->upgrade_stale_php_files_page();
 199         die();
 200     }
 201
 202     if (empty($confirmupgrade)) {
 203         $a->oldversion = "$CFG->release ($CFG->version)";
 204         $a->newversion = "$release ($version)";
 205         $strdatabasechecking = get_string('databasechecking', '', $a);
 206
 207         $PAGE->set_title($stradministration);
 208         $PAGE->set_heading($strdatabasechecking);
 209         $PAGE->set_cacheable(false);
 210
 211         $output = $PAGE->get_renderer('core', 'admin');
 212         echo $output->upgrade_confirm_page($a->newversion, $maturity);
 213         die();
 214
 215     } else if (empty($confirmrelease)){
 216         require_once($CFG->libdir.'/environmentlib.php');
 217         list($envstatus, $environment_results) = check_moodle_environment($release, ENV_SELECT_RELEASE);
 218         $strcurrentrelease = get_string('currentrelease');
 219
 220         $PAGE->navbar->add($strcurrentrelease);
 221         $PAGE->set_title($strcurrentrelease);
 222         $PAGE->set_heading($strcurrentrelease);
 223         $PAGE->set_cacheable(false);
 224
 225         $output = $PAGE->get_renderer('core', 'admin');
 226         echo $output->upgrade_environment_page($release, $envstatus, $environment_results);
 227         die();
 228
 229     } else if (empty($confirmplugins)) {
 230         $strplugincheck = get_string('plugincheck');
 231
 232         $PAGE->navbar->add($strplugincheck);
 233         $PAGE->set_title($strplugincheck);
 234         $PAGE->set_heading($strplugincheck);
 235         $PAGE->set_cacheable(false);
 236
 237         $output = $PAGE->get_renderer('core', 'admin');
 238         echo $output->upgrade_plugin_check_page(plugin_manager::instance(), $version, $showallplugins,
 239                 new moodle_url('/admin/index.php', array('confirmupgrade' => 1, 'confirmrelease' => 1)),
 240                 new moodle_url('/admin/index.php', array('confirmupgrade'=>1, 'confirmrelease'=>1, 'confirmplugincheck'=>1)));
 241         die();
 242
 243     } else {
 244         // Launch main upgrade
 245         upgrade_core($version, true);
 246     }
 247 } else if ($version < $CFG->version) {
 248     // better stop here, we can not continue with plugin upgrades or anything else
 249     throw new moodle_exception('downgradedcore', 'error', new moodle_url('/admin/'));
 250 }
 251
 252 // Updated human-readable release version if necessary
 253 if ($release <> $CFG->release) {  // Update the release version
 254     set_config('release', $release);
 255 }
 256
 257 if (moodle_needs_upgrading()) {
 258     if (!$PAGE->headerprinted) {
 259         // means core upgrade or installation was not already done
 260         if (!$confirmplugins) {
 261             $strplugincheck = get_string('plugincheck');
 262
 263             $PAGE->set_pagelayout('maintenance');
 264             $PAGE->set_popup_notification_allowed(false);
 265             $PAGE->navbar->add($strplugincheck);
 266             $PAGE->set_title($strplugincheck);
 267             $PAGE->set_heading($strplugincheck);
 268             $PAGE->set_cacheable(false);
 269
 270             $output = $PAGE->get_renderer('core', 'admin');
 271             echo $output->upgrade_plugin_check_page(plugin_manager::instance(), $version, $showallplugins,
 272                     new moodle_url('/admin/index.php'),
 273                     new moodle_url('/admin/index.php', array('confirmplugincheck'=>1)));
 274             die();
 275         }
 276     }
 277     // install/upgrade all plugins and other parts
 278     upgrade_noncore(true);
 279 }
 280
 281 // If this is the first install, indicate that this site is fully configured
 282 // except the admin password
 283 if (during_initial_install()) {
 284     set_config('rolesactive', 1); // after this, during_initial_install will return false.
 285     set_config('adminsetuppending', 1);
 286     // we need this redirect to setup proper session
 287     upgrade_finished("index.php?sessionstarted=1&amp;lang=$CFG->lang");
 288 }
 289
 290 // make sure admin user is created - this is the last step because we need
 291 // session to be working properly in order to edit admin account
 292  if (!empty($CFG->adminsetuppending)) {
 293     $sessionstarted = optional_param('sessionstarted', 0, PARAM_BOOL);
 294     if (!$sessionstarted) {
 295         redirect("index.php?sessionstarted=1&lang=$CFG->lang");
 296     } else {
 297         $sessionverify = optional_param('sessionverify', 0, PARAM_BOOL);
 298         if (!$sessionverify) {
 299             $SESSION->sessionverify = 1;
 300             redirect("index.php?sessionstarted=1&sessionverify=1&lang=$CFG->lang");
 301         } else {
 302             if (empty($SESSION->sessionverify)) {
 303                 print_error('installsessionerror', 'admin', "index.php?sessionstarted=1&lang=$CFG->lang");
 304             }
 305             unset($SESSION->sessionverify);
 306         }
 307     }
 308
 309     // at this stage there can be only one admin - users may change username, so do not rely on that
 310     $adminuser = get_complete_user_data('id', $CFG->siteadmins);
 311
 312     if ($adminuser->password === 'adminsetuppending') {
 313         // prevent installation hijacking
 314         if ($adminuser->lastip !== getremoteaddr()) {
 315             print_error('installhijacked', 'admin');
 316         }
 317         // login user and let him set password and admin details
 318         $adminuser->newadminuser = 1;
 319         complete_user_login($adminuser);
 320         redirect("$CFG->wwwroot/user/editadvanced.php?id=$adminuser->id"); // Edit thyself
 321
 322     } else {
 323         unset_config('adminsetuppending');
 324     }
 325
 326 } else {
 327     // just make sure upgrade logging is properly terminated
 328     upgrade_finished('upgradesettings.php');
 329 }
 330
 331 // Turn xmlstrictheaders back on now.
 332 $CFG->xmlstrictheaders = $origxmlstrictheaders;
 333 unset($origxmlstrictheaders);
 334
 335 // Check for valid admin user - no guest autologin
 336 require_login(0, false);
 337 $context = get_context_instance(CONTEXT_SYSTEM);
 338 require_capability('moodle/site:config', $context);
 339
 340 // check that site is properly customized
 341 $site = get_site();
 342 if (empty($site->shortname)) {
 343     // probably new installation - lets return to frontpage after this step
 344     // remove settings that we want uninitialised
 345     unset_config('registerauth');
 346     redirect('upgradesettings.php?return=site');
 347 }
 348
 349 // Check if we are returning from moodle.org registration and if so, we mark that fact to remove reminders
 350 if (!empty($id) and $id == $CFG->siteidentifier) {
 351     set_config('registered', time());
 352 }
 353
 354 // setup critical warnings before printing admin tree block
 355 $insecuredataroot = is_dataroot_insecure(true);
 356 $SESSION->admin_critical_warning = ($insecuredataroot==INSECURE_DATAROOT_ERROR);
 357
 358 $adminroot = admin_get_root();
 359
 360 // Check if there are any new admin settings which have still yet to be set
 361 if (any_new_admin_settings($adminroot)){
 362     redirect('upgradesettings.php');
 363 }
 364
 365 // Everything should now be set up, and the user is an admin
 366
 367 // Print default admin page with notifications.
 368 $errorsdisplayed = defined('WARN_DISPLAY_ERRORS_ENABLED');
 369
 370 $lastcron = $DB->get_field_sql('SELECT MAX(lastcron) FROM {modules}');
 371 $cronoverdue = ($lastcron < time() - 3600 * 24);
 372 $dbproblems = $DB->diagnose();
 373 $maintenancemode = !empty($CFG->maintenance_enabled);
 374
 375 admin_externalpage_setup('adminnotifications');
 376 $output = $PAGE->get_renderer('core', 'admin');
 377 echo $output->admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed,
 378         $cronoverdue, $dbproblems, $maintenancemode);