/** * Execute cron tasks */ function cron_run() { global $DB, $CFG, $OUTPUT; if (CLI_MAINTENANCE) { echo "CLI maintenance mode active, cron execution suspended.\n"; exit(1); } if (moodle_needs_upgrading()) { echo "Moodle upgrade pending, cron execution suspended.\n"; exit(1); } require_once $CFG->libdir . '/adminlib.php'; require_once $CFG->libdir . '/gradelib.php'; if (!empty($CFG->showcronsql)) { $DB->set_debug(true); } if (!empty($CFG->showcrondebugging)) { $CFG->debug = DEBUG_DEVELOPER; $CFG->debugdisplay = true; } set_time_limit(0); $starttime = microtime(); // Increase memory limit raise_memory_limit(MEMORY_EXTRA); // Emulate normal session - we use admin accoutn by default cron_setup_user(); // Start output log $timenow = time(); mtrace("Server Time: " . date('r', $timenow) . "\n\n"); // Run cleanup core cron jobs, but not every time since they aren't too important. // These don't have a timer to reduce load, so we'll use a random number // to randomly choose the percentage of times we should run these jobs. srand((double) microtime() * 10000000); $random100 = rand(0, 100); if ($random100 < 20) { // Approximately 20% of the time. mtrace("Running clean-up tasks..."); // Delete users who haven't confirmed within required period if (!empty($CFG->deleteunconfirmed)) { $cuttime = $timenow - $CFG->deleteunconfirmed * 3600; $rs = $DB->get_recordset_sql("SELECT *\n FROM {user}\n WHERE confirmed = 0 AND firstaccess > 0\n AND firstaccess < ?", array($cuttime)); foreach ($rs as $user) { delete_user($user); // we MUST delete user properly first $DB->delete_records('user', array('id' => $user->id)); // this is a bloody hack, but it might work mtrace(" Deleted unconfirmed user for " . fullname($user, true) . " ({$user->id})"); } $rs->close(); } // Delete users who haven't completed profile within required period if (!empty($CFG->deleteincompleteusers)) { $cuttime = $timenow - $CFG->deleteincompleteusers * 3600; $rs = $DB->get_recordset_sql("SELECT *\n FROM {user}\n WHERE confirmed = 1 AND lastaccess > 0\n AND lastaccess < ? AND deleted = 0\n AND (lastname = '' OR firstname = '' OR email = '')", array($cuttime)); foreach ($rs as $user) { delete_user($user); mtrace(" Deleted not fully setup user {$user->username} ({$user->id})"); } $rs->close(); } // Delete old logs to save space (this might need a timer to slow it down...) if (!empty($CFG->loglifetime)) { // value in days $loglifetime = $timenow - $CFG->loglifetime * 3600 * 24; $DB->delete_records_select("log", "time < ?", array($loglifetime)); mtrace(" Deleted old log records"); } // Delete old backup_controllers and logs. $loglifetime = get_config('backup', 'loglifetime'); if (!empty($loglifetime)) { // Value in days. $loglifetime = $timenow - $loglifetime * 3600 * 24; // Delete child records from backup_logs. $DB->execute("DELETE FROM {backup_logs}\n WHERE EXISTS (\n SELECT 'x'\n FROM {backup_controllers} bc\n WHERE bc.backupid = {backup_logs}.backupid\n AND bc.timecreated < ?)", array($loglifetime)); // Delete records from backup_controllers. $DB->execute("DELETE FROM {backup_controllers}\n WHERE timecreated < ?", array($loglifetime)); mtrace(" Deleted old backup records"); } // Delete old cached texts if (!empty($CFG->cachetext)) { // Defined in config.php $cachelifetime = time() - $CFG->cachetext - 60; // Add an extra minute to allow for really heavy sites $DB->delete_records_select('cache_text', "timemodified < ?", array($cachelifetime)); mtrace(" Deleted old cache_text records"); } if (!empty($CFG->usetags)) { require_once $CFG->dirroot . '/tag/lib.php'; tag_cron(); mtrace(' Executed tag cron'); } // Context maintenance stuff context_helper::cleanup_instances(); mtrace(' Cleaned up context instances'); context_helper::build_all_paths(false); // If you suspect that the context paths are somehow corrupt // replace the line below with: context_helper::build_all_paths(true); mtrace(' Built context paths'); // Remove expired cache flags gc_cache_flags(); mtrace(' Cleaned cache flags'); // Cleanup messaging if (!empty($CFG->messagingdeletereadnotificationsdelay)) { $notificationdeletetime = time() - $CFG->messagingdeletereadnotificationsdelay; $DB->delete_records_select('message_read', 'notification=1 AND timeread<:notificationdeletetime', array('notificationdeletetime' => $notificationdeletetime)); mtrace(' Cleaned up read notifications'); } mtrace("...finished clean-up tasks"); } // End of occasional clean-up tasks // Send login failures notification - brute force protection in moodle is weak, // we should at least send notices early in each cron execution if (notify_login_failures()) { mtrace(' Notified login failures'); } // Make sure all context instances are properly created - they may be required in auth, enrol, etc. context_helper::create_instances(); mtrace(' Created missing context instances'); // Session gc session_gc(); mtrace("Cleaned up stale user sessions"); // Run the auth cron, if any before enrolments // because it might add users that will be needed in enrol plugins $auths = get_enabled_auth_plugins(); mtrace("Running auth crons if required..."); foreach ($auths as $auth) { $authplugin = get_auth_plugin($auth); if (method_exists($authplugin, 'cron')) { mtrace("Running cron for auth/{$auth}..."); $authplugin->cron(); if (!empty($authplugin->log)) { mtrace($authplugin->log); } } unset($authplugin); } // Generate new password emails for users - ppl expect these generated asap if ($DB->count_records('user_preferences', array('name' => 'create_password', 'value' => '1'))) { mtrace('Creating passwords for new users...'); $newusers = $DB->get_recordset_sql("SELECT u.id as id, u.email, u.firstname,\n u.lastname, u.username, u.lang,\n p.id as prefid\n FROM {user} u\n JOIN {user_preferences} p ON u.id=p.userid\n WHERE p.name='create_password' AND p.value='1' AND u.email !='' AND u.suspended = 0 AND u.auth != 'nologin' AND u.deleted = 0"); // note: we can not send emails to suspended accounts foreach ($newusers as $newuser) { if (setnew_password_and_mail($newuser)) { unset_user_preference('create_password', $newuser); set_user_preference('auth_forcepasswordchange', 1, $newuser); } else { trigger_error("Could not create and mail new user password!"); } } $newusers->close(); } // It is very important to run enrol early // because other plugins depend on correct enrolment info. mtrace("Running enrol crons if required..."); $enrols = enrol_get_plugins(true); foreach ($enrols as $ename => $enrol) { // do this for all plugins, disabled plugins might want to cleanup stuff such as roles if (!$enrol->is_cron_required()) { continue; } mtrace("Running cron for enrol_{$ename}..."); $enrol->cron(); $enrol->set_config('lastcron', time()); } // Run all cron jobs for each module mtrace("Starting activity modules"); get_mailer('buffer'); if ($mods = $DB->get_records_select("modules", "cron > 0 AND ((? - lastcron) > cron) AND visible = 1", array($timenow))) { foreach ($mods as $mod) { $libfile = "{$CFG->dirroot}/mod/{$mod->name}/lib.php"; if (file_exists($libfile)) { include_once $libfile; $cron_function = $mod->name . "_cron"; if (function_exists($cron_function)) { mtrace("Processing module function {$cron_function} ...", ''); $pre_dbqueries = null; $pre_dbqueries = $DB->perf_get_queries(); $pre_time = microtime(1); if ($cron_function()) { $DB->set_field("modules", "lastcron", $timenow, array("id" => $mod->id)); } if (isset($pre_dbqueries)) { mtrace("... used " . ($DB->perf_get_queries() - $pre_dbqueries) . " dbqueries"); mtrace("... used " . (microtime(1) - $pre_time) . " seconds"); } // Reset possible changes by modules to time_limit. MDL-11597 @set_time_limit(0); mtrace("done."); } } } } get_mailer('close'); mtrace("Finished activity modules"); mtrace("Starting blocks"); if ($blocks = $DB->get_records_select("block", "cron > 0 AND ((? - lastcron) > cron) AND visible = 1", array($timenow))) { // We will need the base class. require_once $CFG->dirroot . '/blocks/moodleblock.class.php'; foreach ($blocks as $block) { $blockfile = $CFG->dirroot . '/blocks/' . $block->name . '/block_' . $block->name . '.php'; if (file_exists($blockfile)) { require_once $blockfile; $classname = 'block_' . $block->name; $blockobj = new $classname(); if (method_exists($blockobj, 'cron')) { mtrace("Processing cron function for " . $block->name . '....', ''); if ($blockobj->cron()) { $DB->set_field('block', 'lastcron', $timenow, array('id' => $block->id)); } // Reset possible changes by blocks to time_limit. MDL-11597 @set_time_limit(0); mtrace('done.'); } } } } mtrace('Finished blocks'); mtrace('Starting admin reports'); cron_execute_plugin_type('report'); mtrace('Finished admin reports'); mtrace('Starting main gradebook job...'); grade_cron(); mtrace('done.'); mtrace('Starting processing the event queue...'); events_cron(); mtrace('done.'); if ($CFG->enablecompletion) { // Completion cron mtrace('Starting the completion cron...'); require_once $CFG->libdir . '/completion/cron.php'; completion_cron(); mtrace('done'); } if ($CFG->enableportfolios) { // Portfolio cron mtrace('Starting the portfolio cron...'); require_once $CFG->libdir . '/portfoliolib.php'; portfolio_cron(); mtrace('done'); } //now do plagiarism checks require_once $CFG->libdir . '/plagiarismlib.php'; plagiarism_cron(); mtrace('Starting course reports'); cron_execute_plugin_type('coursereport'); mtrace('Finished course reports'); // run gradebook import/export/report cron mtrace('Starting gradebook plugins'); cron_execute_plugin_type('gradeimport'); cron_execute_plugin_type('gradeexport'); cron_execute_plugin_type('gradereport'); mtrace('Finished gradebook plugins'); // Run external blog cron if needed if ($CFG->useexternalblogs) { require_once $CFG->dirroot . '/blog/lib.php'; mtrace("Fetching external blog entries...", ''); $sql = "timefetched < ? OR timefetched = 0"; $externalblogs = $DB->get_records_select('blog_external', $sql, array(time() - $CFG->externalblogcrontime)); foreach ($externalblogs as $eb) { blog_sync_external_entries($eb); } mtrace('done.'); } // Run blog associations cleanup if ($CFG->useblogassociations) { require_once $CFG->dirroot . '/blog/lib.php'; // delete entries whose contextids no longer exists mtrace("Deleting blog associations linked to non-existent contexts...", ''); $DB->delete_records_select('blog_association', 'contextid NOT IN (SELECT id FROM {context})'); mtrace('done.'); } // Run question bank clean-up. mtrace("Starting the question bank cron...", ''); require_once $CFG->libdir . '/questionlib.php'; question_bank::cron(); mtrace('done.'); //Run registration updated cron mtrace(get_string('siteupdatesstart', 'hub')); require_once $CFG->dirroot . '/' . $CFG->admin . '/registration/lib.php'; $registrationmanager = new registration_manager(); $registrationmanager->cron(); mtrace(get_string('siteupdatesend', 'hub')); // If enabled, fetch information about available updates and eventually notify site admins if (empty($CFG->disableupdatenotifications)) { require_once $CFG->libdir . '/pluginlib.php'; $updateschecker = available_update_checker::instance(); $updateschecker->cron(); } //cleanup old session linked tokens //deletes the session linked tokens that are over a day old. mtrace("Deleting session linked tokens more than one day old...", ''); $DB->delete_records_select('external_tokens', 'lastaccess < :onedayago AND tokentype = :tokentype', array('onedayago' => time() - DAYSECS, 'tokentype' => EXTERNAL_TOKEN_EMBEDDED)); mtrace('done.'); // all other plugins cron_execute_plugin_type('message', 'message plugins'); cron_execute_plugin_type('filter', 'filters'); cron_execute_plugin_type('editor', 'editors'); cron_execute_plugin_type('format', 'course formats'); cron_execute_plugin_type('profilefield', 'profile fields'); cron_execute_plugin_type('webservice', 'webservices'); cron_execute_plugin_type('repository', 'repository plugins'); cron_execute_plugin_type('qbehaviour', 'question behaviours'); cron_execute_plugin_type('qformat', 'question import/export formats'); cron_execute_plugin_type('qtype', 'question types'); cron_execute_plugin_type('plagiarism', 'plagiarism plugins'); cron_execute_plugin_type('theme', 'themes'); cron_execute_plugin_type('tool', 'admin tools'); // and finally run any local cronjobs, if any if ($locals = get_plugin_list('local')) { mtrace('Processing customized cron scripts ...', ''); // new cron functions in lib.php first cron_execute_plugin_type('local'); // legacy cron files are executed directly foreach ($locals as $local => $localdir) { if (file_exists("{$localdir}/cron.php")) { include "{$localdir}/cron.php"; } } mtrace('done.'); } // Run automated backups if required - these may take a long time to execute require_once $CFG->dirroot . '/backup/util/includes/backup_includes.php'; require_once $CFG->dirroot . '/backup/util/helper/backup_cron_helper.class.php'; backup_cron_automated_helper::run_automated_backup(); // Run stats as at the end because they are known to take very long time on large sites if (!empty($CFG->enablestats) and empty($CFG->disablestatsprocessing)) { require_once $CFG->dirroot . '/lib/statslib.php'; // check we're not before our runtime $timetocheck = stats_get_base_daily() + $CFG->statsruntimestarthour * 60 * 60 + $CFG->statsruntimestartminute * 60; if (time() > $timetocheck) { // process configured number of days as max (defaulting to 31) $maxdays = empty($CFG->statsruntimedays) ? 31 : abs($CFG->statsruntimedays); if (stats_cron_daily($maxdays)) { if (stats_cron_weekly()) { if (stats_cron_monthly()) { stats_clean_old(); } } } @set_time_limit(0); } else { mtrace('Next stats run after:' . userdate($timetocheck)); } } // cleanup file trash - not very important $fs = get_file_storage(); $fs->cron(); mtrace("Cron script completed correctly"); $difftime = microtime_diff($starttime, microtime()); mtrace("Execution took " . $difftime . " seconds"); }
/** * GC session handler * * {@see http://php.net/manual/en/function.session-set-save-handler.php} * * @param int $ignored_maxlifetime moodle uses special timeout rules * @return bool success */ public function handler_gc($ignored_maxlifetime) { session_gc(); return true; }
set_config('auth', implode(',', $authsenabled)); } if ($auth == $CFG->registerauth) { set_config('registerauth', ''); } session_gc(); // remove stale sessions break; case 'enable': // add to enabled list if (!in_array($auth, $authsenabled)) { $authsenabled[] = $auth; $authsenabled = array_unique($authsenabled); set_config('auth', implode(',', $authsenabled)); } session_gc(); // remove stale sessions break; case 'down': $key = array_search($auth, $authsenabled); // check auth plugin is valid if ($key === false) { print_error('pluginnotenabled', 'auth', $url, $auth); } // move down the list if ($key < count($authsenabled) - 1) { $fsave = $authsenabled[$key]; $authsenabled[$key] = $authsenabled[$key + 1]; $authsenabled[$key + 1] = $fsave; set_config('auth', implode(',', $authsenabled)); }
$USER->$variable = $value; } // preload custom fields profile_load_custom_fields($USER); if (!empty($USER->newadminuser)) { unset($USER->newadminuser); // apply defaults again - some of them might depend on admin user info, backup, roles, etc. admin_apply_default_settings(NULL , false); // redirect to admin/ to continue with installation redirect("$CFG->wwwroot/$CFG->admin/"); } else { redirect("$CFG->wwwroot/user/view.php?id=$USER->id&course=$course->id"); } } else { session_gc(); // remove stale sessions redirect("$CFG->wwwroot/$CFG->admin/user.php"); } //never reached } // make sure we really are on the https page when https login required $PAGE->verify_https_required(); /// Display page header if ($user->id == -1 or ($user->id != $USER->id)) { if ($user->id == -1) { echo $OUTPUT->header(); } else { $PAGE->set_heading($SITE->fullname);