<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Main administration script.
*
* @package core
* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
// Check that config.php exists, if not then call the install script if (!file_exists('../config.php')) {
header('Location: ../install.php');
die();

}
// Check that PHP is of a sufficient version as soon as possible if (version_compare(phpversion(), '5.4.4') < 0) {
$phpversion = phpversion();
// do NOT localise - lang strings would not work here and we CAN NOT move it to later place
echo "Moodle 2.7 or later requires at least PHP 5.4.4 (currently using version
$phpversion).<br />";
echo "Please upgrade your server software or install older Moodle version.";
die();
}
// make sure iconv is available and actually works if (!function_exists('iconv')) {
// this should not happen, this must be very borked install
echo 'Moodle requires the iconv PHP extension. Please install or enable the iconv extension.';
die();
}
// Make sure php5-json is available. if (!function_exists('json_encode') || !function_exists('json_decode')) {
// This also shouldn't happen.
echo 'Moodle requires the json PHP extension. Please install or enable the json extension.';
die();
} define('NO_OUTPUT_BUFFERING', true);

if ((isset($_GET['cache']) and $_GET['cache'] === '0')
or (isset($_POST['cache']) and $_POST['cache'] === '0')
or (!isset($_POST['cache']) and !isset($_GET['cache']) and empty($_GET['sesskey']) and empty($_POST['sesskey']))) {
// Prevent caching at all cost when visiting this page directly,
// we redirect to self once we known no upgrades are necessary.
// Note: $_GET and $_POST are used here intentionally because our param cleaning is not loaded yet.
// Note2: the sesskey is present in all block editing hacks, we can not redirect there, so enable caching.
define('CACHE_DISABLE_ALL', true);
// Force OPcache reset if used, we do not want any stale caches
// when detecting if upgrade necessary or when running upgrade.
if (function_exists('opcache_reset')) {
opcache_reset();
}
$cache = 0;
}
} else {
$cache = 1; require('../config.php');
// Invalidate the cache of version.php in any circumstances to help core_component
// detecting if the version has changed and component cache should be reset. if (function_exists('opcache_invalidate')) {
opcache_invalidate($CFG->dirroot . '/version.php', true);
}

// Make sure the component cache gets rebuilt if necessary, any method that
// indirectly calls the protected init() method is good here. core_component::get_core_subsystems(); require_once($CFG->libdir.'/adminlib.php'); // various admin-only functions require_once($CFG->libdir.'/upgradelib.php'); // general upgrade/install related functions
$id = optional_param('id', '', PARAM_TEXT);
$confirmupgrade = optional_param('confirmupgrade', 0, PARAM_BOOL);
$confirmrelease = optional_param('confirmrelease', 0, PARAM_BOOL);
$confirmplugins = optional_param('confirmplugincheck', 0, PARAM_BOOL);
$showallplugins = optional_param('showallplugins', 0, PARAM_BOOL);
$agreelicense = optional_param('agreelicense', 0, PARAM_BOOL);
$fetchupdates = optional_param('fetchupdates', 0, PARAM_BOOL);
$newaddonreq = optional_param('installaddonrequest', null, PARAM_RAW);
// Set up PAGE.
$url = new moodle_url('/admin/index.php');
$url->param('cache', $cache);
$PAGE->set_url($url); unset($url);
// Are we returning from an add-on installation request at moodle.org/plugins? if ($newaddonreq and !$cache and empty($CFG->disableonclickaddoninstall)) {
$target = new moodle_url('/admin/tool/installaddon/index.php', array(
'installaddonrequest' => $newaddonreq,
'confirm' => 0));
if (!isloggedin() or isguestuser()) {
// Login and go the the add-on tool page.

}
$SESSION->wantsurl = $target->out();
redirect(get_login_url());
}
redirect($target);
$PAGE->set_pagelayout('admin'); // Set a default pagelayout
$documentationlink = '<a href="http://docs.moodle.org/en/Installation">Installation docs</a>';
}
// Check some PHP server settings if (ini_get_bool('session.auto_start')) {
print_error('phpvaroff', 'debug', '', (object)array('name'=>'session.auto_start',
'link'=>$documentationlink)); if (!ini_get_bool('file_uploads')) {
print_error('phpvaron', 'debug', '', (object)array('name'=>'file_uploads',
'link'=>$documentationlink));
} if (is_float_problem()) {
print_error('phpfloatproblem', 'admin', '', $documentationlink);
}
// Set some necessary variables during set-up to avoid PHP warnings later on this page if (!isset($CFG->release)) {
$CFG->release = '';

} if (!isset($CFG->version)) {
$CFG->version = '';
} if (!isset($CFG->branch)) {
$CFG->branch = '';
}
$version = null;
$release = null;
$branch = null; require("$CFG->dirroot/version.php"); // defines $version, $release, $branch and $maturity
$CFG->target_release = $release; // used during installation and upgrades
} if (!$version or !$release) {
print_error('withoutversion', 'debug'); // without version, stop if (!core_tables_exist()) {
$PAGE->set_pagelayout('maintenance');
$PAGE->set_popup_notification_allowed(false);
// fake some settings
$CFG->docroot = 'http://docs.moodle.org';
$strinstallation = get_string('installation', 'install');
// remove current session content completely
\core\session\manager::terminate_current();

if (empty($agreelicense)) {
$strlicense = get_string('license');
$PAGE->navbar->add($strlicense);
$PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
$PAGE->set_heading($strinstallation);
$PAGE->set_cacheable(false);
/** @var core_admin_renderer $output */
$output = $PAGE->get_renderer('core', 'admin');
echo $output->install_licence_page();
die();
}
if (empty($confirmrelease)) {
require_once($CFG->libdir.'/environmentlib.php');
list($envstatus, $environment_results) = check_moodle_environment(normalize_version($release), ENV_SELECT_RELEASE);
$strcurrentrelease = get_string('currentrelease');
$PAGE->navbar->add($strcurrentrelease);
$PAGE->set_title($strinstallation);
$PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
$PAGE->set_cacheable(false);
/** @var core_admin_renderer $output */
$output = $PAGE->get_renderer('core', 'admin');
echo $output->install_environment_page($maturity, $envstatus, $environment_results,
$release);

die();
}
// check plugin dependencies
$failed = array();
if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed)) {
$PAGE->navbar->add(get_string('pluginscheck', 'admin'));
$PAGE->set_title($strinstallation);
$PAGE->set_heading($strinstallation . ' - Moodle ' . $CFG->target_release);
$output = $PAGE->get_renderer('core', 'admin');
$url = new moodle_url('/admin/index.php', array('agreelicense' => 1, 'confirmrelease' => 1,
'lang' => $CFG->lang));
echo $output->unsatisfied_dependencies_page($version, $failed, $url);
die();
}
unset($failed);
//TODO: add a page with list of non-standard plugins here
$strdatabasesetup = get_string('databasesetup');
upgrade_init_javascript();
$PAGE->navbar->add($strdatabasesetup);
$PAGE->set_title($strinstallation.' - Moodle '.$CFG->target_release);
$PAGE->set_heading($strinstallation);
$PAGE->set_cacheable(false);
$output = $PAGE->get_renderer('core', 'admin');

echo $output->header();
if (!$DB->setup_is_unicodedb()) {
if (!$DB->change_db_encoding()) {
// If could not convert successfully, throw error, and prevent installation
print_error('unicoderequired', 'admin');
}
}
install_core($version, true);
}
// Check version of Moodle code on disk compared with database
// and upgrade if possible. if (!$cache) {
// Do not try to do anything fancy in non-cached mode,
// this prevents themes from fetching data from non-existent tables.
$PAGE->set_pagelayout('maintenance');
$PAGE->set_popup_notification_allowed(false);
}
$stradministration = get_string('administration');
$PAGE->set_context(context_system::instance()); if (empty($CFG->version)) {
print_error('missingconfigversion', 'debug');
}

// Detect config cache inconsistency, this happens when you switch branches on dev servers. if ($CFG->version != $DB->get_field('config', 'value', array('name'=>'version'))) {
purge_all_caches();
redirect(new moodle_url('/admin/index.php'), 'Config cache inconsistency detected, resetting caches...');
} if (!$cache and $version > $CFG->version) { // upgrade
// Warning about upgrading a test site.
$testsite = false;
if (defined('BEHAT_SITE_RUNNING')) {
$testsite = 'behat';
}
// We purge all of MUC's caches here.
// Caches are disabled for upgrade by CACHE_DISABLE_ALL so we must set the first arg to true.
// This ensures a real config object is loaded and the stores will be purged.
// This is the only way we can purge custom caches such as memcache or APC.
// Note: all other calls to caches will still used the disabled API.
cache_helper::purge_all(true);
// We then purge the regular caches.
purge_all_caches();
/** @var core_admin_renderer $output */
$output = $PAGE->get_renderer('core', 'admin');

if (upgrade_stale_php_files_present()) {
$PAGE->set_title($stradministration);
$PAGE->set_cacheable(false);
echo $output->upgrade_stale_php_files_page();
die();
}
if (empty($confirmupgrade)) {
$a = new stdClass();
$a->oldversion = "$CFG->release (".sprintf('%.2f', $CFG->version).")";
$a->newversion = "$release (".sprintf('%.2f', $version).")";
$strdatabasechecking = get_string('databasechecking', '', $a);
$PAGE->set_title($stradministration);
$PAGE->set_heading($strdatabasechecking);
$PAGE->set_cacheable(false);
echo $output->upgrade_confirm_page($a->newversion, $maturity, $testsite);
die();
} else if (empty($confirmrelease)){
require_once($CFG->libdir.'/environmentlib.php');
list($envstatus, $environment_results) = check_moodle_environment($release,
ENV_SELECT_RELEASE);
$strcurrentrelease = get_string('currentrelease');
$PAGE->navbar->add($strcurrentrelease);
$PAGE->set_title($strcurrentrelease);

$PAGE->set_heading($strcurrentrelease);
$PAGE->set_cacheable(false);
echo $output->upgrade_environment_page($release, $envstatus, $environment_results);
die();
} else if (empty($confirmplugins)) {
$strplugincheck = get_string('plugincheck');
$PAGE->navbar->add($strplugincheck);
$PAGE->set_title($strplugincheck);
$PAGE->set_heading($strplugincheck);
$PAGE->set_cacheable(false);
$reloadurl = new moodle_url('/admin/index.php', array('confirmupgrade' => 1,
'confirmrelease' => 1, 'cache' => 0));
if ($fetchupdates) {
// No sesskey support guaranteed here, because sessions might not work yet.
$updateschecker = \core\update\checker::instance();
if ($updateschecker->enabled()) {
$updateschecker->fetch();
}
redirect($reloadurl);
}
$deployer = \core\update\deployer::instance();
if ($deployer->enabled()) {
$deployer->initialize($reloadurl, $reloadurl);

$deploydata = $deployer->submitted_data();
if (!empty($deploydata)) {
// No sesskey support guaranteed here, because sessions might not work yet.
echo $output->upgrade_plugin_confirm_deploy_page($deployer, $deploydata);
die();
}
}
echo $output->upgrade_plugin_check_page(core_plugin_manager::instance(),
\core\update\checker::instance(),
$version, $showallplugins, $reloadurl,
new moodle_url('/admin/index.php', array('confirmupgrade'=>1, 'confirmrelease'=>1,
'confirmplugincheck'=>1, 'cache'=>0)));
die();
} else {
// Always verify plugin dependencies!
$failed = array();
if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed)) {
$reloadurl = new moodle_url('/admin/index.php', array('confirmupgrade' => 1,
'confirmrelease' => 1, 'cache' => 0));
echo $output->unsatisfied_dependencies_page($version, $failed, $reloadurl);
die();
}
unset($failed);
// Launch main upgrade.
upgrade_core($version, true);
}

} else if ($version < $CFG->version) {
// better stop here, we can not continue with plugin upgrades or anything else
throw new moodle_exception('downgradedcore', 'error', new moodle_url('/admin/'));
}
// Updated human-readable release version if necessary
} if (!$cache and $release <> $CFG->release) { // Update the release version
set_config('release', $release);
} if (!$cache and $branch <> $CFG->branch) { // Update the branch
set_config('branch', $branch); if (!$cache and moodle_needs_upgrading()) {
if (!$PAGE->headerprinted) {
// means core upgrade or installation was not already done
if (!$confirmplugins) {
$strplugincheck = get_string('plugincheck');
$PAGE->navbar->add($strplugincheck);
$PAGE->set_title($strplugincheck);
$PAGE->set_heading($strplugincheck);
$PAGE->set_cacheable(false);
if ($fetchupdates) {
require_sesskey();
$updateschecker = \core\update\checker::instance();

if ($updateschecker->enabled()) {
$updateschecker->fetch();
}
redirect($PAGE->url);
}
/** @var core_admin_renderer $output */
$output = $PAGE->get_renderer('core', 'admin');
$deployer = \core\update\deployer::instance();
if ($deployer->enabled()) {
$deployer->initialize($PAGE->url, $PAGE->url);
$deploydata = $deployer->submitted_data();
if (!empty($deploydata)) {
require_sesskey();
echo $output->upgrade_plugin_confirm_deploy_page($deployer, $deploydata);
die();
}
}
// Show plugins info.
echo $output->upgrade_plugin_check_page(core_plugin_manager::instance(),
\core\update\checker::instance(),
$version, $showallplugins,
new moodle_url($PAGE->url),
new moodle_url('/admin/index.php', array('confirmplugincheck'=>1, 'cache'=>0)));
die();
}

// Make sure plugin dependencies are always checked.
$failed = array();
if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed)) {
/** @var core_admin_renderer $output */
$output = $PAGE->get_renderer('core', 'admin');
$reloadurl = new moodle_url('/admin/index.php', array('cache' => 0));
echo $output->unsatisfied_dependencies_page($version, $failed, $reloadurl);
die();
}
unset($failed);
}
// install/upgrade all plugins and other parts
upgrade_noncore(true);
}
// If this is the first install, indicate that this site is fully configured
// except the admin password if (during_initial_install()) {
set_config('rolesactive', 1); // after this, during_initial_install will return false.
set_config('adminsetuppending', 1);
// we need this redirect to setup proper session
upgrade_finished("index.php?sessionstarted=1&amp;lang=$CFG->lang");
}
// make sure admin user is created - this is the last step because we need
// session to be working properly in order to edit admin account
if (!empty($CFG->adminsetuppending)) {

$sessionstarted = optional_param('sessionstarted', 0, PARAM_BOOL);
if (!$sessionstarted) {
redirect("index.php?sessionstarted=1&lang=$CFG->lang");
} else {
$sessionverify = optional_param('sessionverify', 0, PARAM_BOOL);
if (!$sessionverify) {
$SESSION->sessionverify = 1;
redirect("index.php?sessionstarted=1&sessionverify=1&lang=$CFG->lang");
} else {
if (empty($SESSION->sessionverify)) {
print_error('installsessionerror', 'admin', "index.php?sessionstarted=1&lang=$CFG-
>lang");
}
unset($SESSION->sessionverify);
}
}
// Cleanup SESSION to make sure other code does not complain in the future.
unset($SESSION->has_timed_out);
unset($SESSION->wantsurl);
// 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
$adminids = explode(',', $CFG->siteadmins);
$adminuser = get_complete_user_data('id', reset($adminids));
if ($adminuser->password === 'adminsetuppending') {
// prevent installation hijacking
if ($adminuser->lastip !== getremoteaddr()) {

print_error('installhijacked', 'admin');
}
// login user and let him set password and admin details
$adminuser->newadminuser = 1;
complete_user_login($adminuser);
redirect("$CFG->wwwroot/user/editadvanced.php?id=$adminuser->id"); // Edit thyself
} else {
unset_config('adminsetuppending');
}
} else {
// just make sure upgrade logging is properly terminated
upgrade_finished('upgradesettings.php');
} if (has_capability('moodle/site:config', context_system::instance())) {
if ($fetchupdates) {
require_sesskey();
$updateschecker = \core\update\checker::instance();
if ($updateschecker->enabled()) {
$updateschecker->fetch();
}
redirect(new moodle_url('/admin/index.php', array('cache' => 0)));
}
}
// Now we can be sure everything was upgraded and caches work fine,
// redirect if necessary to make sure caching is enabled.

} if (!$cache) {
redirect(new moodle_url('/admin/index.php', array('cache' => 1)));
// Check for valid admin user - no guest autologin require_login(0, false); if (isguestuser()) {
// Login as real user!
$SESSION->wantsurl = (string)new moodle_url('/admin/index.php');
redirect(get_login_url());
}
$context = context_system::instance(); require_capability('moodle/site:config', $context);
// check that site is properly customized
$site = get_site(); if (empty($site->shortname)) {
// probably new installation - lets return to frontpage after this step
// remove settings that we want uninitialised
unset_config('registerauth');
redirect('upgradesettings.php?return=site');
}
// Check if we are returning from moodle.org registration and if so, we mark that fact to remove reminders if (!empty($id) and $id == $CFG->siteidentifier) {
set_config('registered', time());
}

// setup critical warnings before printing admin tree block
$insecuredataroot = is_dataroot_insecure(true);
$SESSION->admin_critical_warning =
($insecuredataroot==INSECURE_DATAROOT_ERROR);
$adminroot = admin_get_root();
// Check if there are any new admin settings which have still yet to be set if (any_new_admin_settings($adminroot)){
redirect('upgradesettings.php');
}
// Return to original page that started the plugin uninstallation if necessary. if (isset($SESSION->pluginuninstallreturn)) {
$return = $SESSION->pluginuninstallreturn;
unset($SESSION->pluginuninstallreturn);
if ($return) {
}
redirect($return);
}
// Everything should now be set up, and the user is an admin
// Print default admin page with notifications.
$errorsdisplayed = defined('WARN_DISPLAY_ERRORS_ENABLED');
// We make the assumption that at least one schedule task should run once per day.
$lastcron = $DB->get_field_sql('SELECT MAX(lastruntime) FROM {task_scheduled}');
$cronoverdue = ($lastcron < time() - 3600 * 24);

$dbproblems = $DB->diagnose();
$maintenancemode = !empty($CFG->maintenance_enabled);
// Available updates for Moodle core
$updateschecker = \core\update\checker::instance();
$availableupdates = array();
$availableupdates['core'] = $updateschecker->get_update_info('core',
array('minmaturity' => $CFG->updateminmaturity, 'notifybuilds' => $CFG-
>updatenotifybuilds));
// Available updates for contributed plugins
$pluginman = core_plugin_manager::instance(); foreach ($pluginman->get_plugins() as $plugintype => $plugintypeinstances) {
foreach ($plugintypeinstances as $pluginname => $plugininfo) {
if (!empty($plugininfo->availableupdates)) {
foreach ($plugininfo->availableupdates as $pluginavailableupdate) {
if ($pluginavailableupdate->version > $plugininfo->versiondisk) {
if (!isset($availableupdates[$plugintype.'_'.$pluginname])) {
$availableupdates[$plugintype.'_'.$pluginname] = array();
}
$availableupdates[$plugintype.'_'.$pluginname][] = $pluginavailableupdate;
}
}
}
}
}
// The timestamp of the most recent check for available updates
$availableupdatesfetch = $updateschecker->get_last_timefetched();

$buggyiconvnomb = (!function_exists('mb_convert_encoding') and @iconv('UTF-8', 'UTF-
8//IGNORE', '100'.chr(130).'€') !== '100€');
//check if the site is registered on Moodle.org
$registered = $DB->count_records('registration_hubs', array('huburl' =>
HUB_MOODLEORGHUBURL, 'confirmed' => 1));
// Check if there are any cache warnings.
$cachewarnings = cache_helper::warnings(); admin_externalpage_setup('adminnotifications');
/* @var core_admin_renderer $output */
$output = $PAGE->get_renderer('core', 'admin'); echo $output->admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed,
$cronoverdue, $dbproblems,
$maintenancemode, $availableupdates, $availableupdatesfetch,
$buggyiconvnomb,
$registered, $cachewarnings);