mirror of
https://github.com/moodle/moodle.git
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2b503e40f2
generate_email_supportuser was not creating user which can be used by messaging system. core_user::get_support_user() should be used to get support_user record.
818 lines
31 KiB
PHP
818 lines
31 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Cron functions.
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*
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* @package core
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* @subpackage admin
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* @copyright 1999 onwards Martin Dougiamas http://dougiamas.com
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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/**
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* Execute cron tasks
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*/
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function cron_run() {
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global $DB, $CFG, $OUTPUT;
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if (CLI_MAINTENANCE) {
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echo "CLI maintenance mode active, cron execution suspended.\n";
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exit(1);
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}
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if (moodle_needs_upgrading()) {
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echo "Moodle upgrade pending, cron execution suspended.\n";
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exit(1);
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}
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require_once($CFG->libdir.'/adminlib.php');
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require_once($CFG->libdir.'/gradelib.php');
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if (!empty($CFG->showcronsql)) {
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$DB->set_debug(true);
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}
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if (!empty($CFG->showcrondebugging)) {
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set_debugging(DEBUG_DEVELOPER, true);
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}
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set_time_limit(0);
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$starttime = microtime();
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// Increase memory limit
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raise_memory_limit(MEMORY_EXTRA);
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// Emulate normal session - we use admin accoutn by default
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cron_setup_user();
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// Start output log
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$timenow = time();
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mtrace("Server Time: ".date('r', $timenow)."\n\n");
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// Run cleanup core cron jobs, but not every time since they aren't too important.
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// These don't have a timer to reduce load, so we'll use a random number
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// to randomly choose the percentage of times we should run these jobs.
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srand ((double) microtime() * 10000000);
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$random100 = rand(0,100);
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if ($random100 < 20) { // Approximately 20% of the time.
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mtrace("Running clean-up tasks...");
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cron_trace_time_and_memory();
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// Delete users who haven't confirmed within required period
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if (!empty($CFG->deleteunconfirmed)) {
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$cuttime = $timenow - ($CFG->deleteunconfirmed * 3600);
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$rs = $DB->get_recordset_sql ("SELECT *
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FROM {user}
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WHERE confirmed = 0 AND firstaccess > 0
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AND firstaccess < ?", array($cuttime));
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foreach ($rs as $user) {
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delete_user($user); // we MUST delete user properly first
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$DB->delete_records('user', array('id'=>$user->id)); // this is a bloody hack, but it might work
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mtrace(" Deleted unconfirmed user for ".fullname($user, true)." ($user->id)");
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}
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$rs->close();
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}
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// Delete users who haven't completed profile within required period
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if (!empty($CFG->deleteincompleteusers)) {
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$cuttime = $timenow - ($CFG->deleteincompleteusers * 3600);
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$rs = $DB->get_recordset_sql ("SELECT *
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FROM {user}
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WHERE confirmed = 1 AND lastaccess > 0
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AND lastaccess < ? AND deleted = 0
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AND (lastname = '' OR firstname = '' OR email = '')",
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array($cuttime));
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foreach ($rs as $user) {
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if (isguestuser($user) or is_siteadmin($user)) {
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continue;
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}
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delete_user($user);
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mtrace(" Deleted not fully setup user $user->username ($user->id)");
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}
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$rs->close();
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}
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// Delete old logs to save space (this might need a timer to slow it down...)
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if (!empty($CFG->loglifetime)) { // value in days
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$loglifetime = $timenow - ($CFG->loglifetime * 3600 * 24);
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$DB->delete_records_select("log", "time < ?", array($loglifetime));
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mtrace(" Deleted old log records");
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}
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// Delete old backup_controllers and logs.
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$loglifetime = get_config('backup', 'loglifetime');
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if (!empty($loglifetime)) { // Value in days.
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$loglifetime = $timenow - ($loglifetime * 3600 * 24);
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// Delete child records from backup_logs.
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$DB->execute("DELETE FROM {backup_logs}
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WHERE EXISTS (
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SELECT 'x'
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FROM {backup_controllers} bc
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WHERE bc.backupid = {backup_logs}.backupid
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AND bc.timecreated < ?)", array($loglifetime));
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// Delete records from backup_controllers.
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$DB->execute("DELETE FROM {backup_controllers}
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WHERE timecreated < ?", array($loglifetime));
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mtrace(" Deleted old backup records");
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}
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// Delete old cached texts
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if (!empty($CFG->cachetext)) { // Defined in config.php
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$cachelifetime = time() - $CFG->cachetext - 60; // Add an extra minute to allow for really heavy sites
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$DB->delete_records_select('cache_text', "timemodified < ?", array($cachelifetime));
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mtrace(" Deleted old cache_text records");
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}
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if (!empty($CFG->usetags)) {
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require_once($CFG->dirroot.'/tag/lib.php');
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tag_cron();
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mtrace(' Executed tag cron');
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}
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// Context maintenance stuff
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context_helper::cleanup_instances();
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mtrace(' Cleaned up context instances');
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context_helper::build_all_paths(false);
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// If you suspect that the context paths are somehow corrupt
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// replace the line below with: context_helper::build_all_paths(true);
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mtrace(' Built context paths');
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// Remove expired cache flags
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gc_cache_flags();
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mtrace(' Cleaned cache flags');
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// Cleanup messaging
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if (!empty($CFG->messagingdeletereadnotificationsdelay)) {
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$notificationdeletetime = time() - $CFG->messagingdeletereadnotificationsdelay;
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$DB->delete_records_select('message_read', 'notification=1 AND timeread<:notificationdeletetime', array('notificationdeletetime'=>$notificationdeletetime));
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mtrace(' Cleaned up read notifications');
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}
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mtrace(' Deleting temporary files...');
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cron_delete_from_temp();
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mtrace("...finished clean-up tasks");
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} // End of occasional clean-up tasks
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// Send login failures notification - brute force protection in moodle is weak,
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// we should at least send notices early in each cron execution
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if (notify_login_failures()) {
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mtrace(' Notified login failures');
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}
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// Make sure all context instances are properly created - they may be required in auth, enrol, etc.
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context_helper::create_instances();
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mtrace(' Created missing context instances');
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// Session gc
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session_gc();
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mtrace("Cleaned up stale user sessions");
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// Run the auth cron, if any before enrolments
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// because it might add users that will be needed in enrol plugins
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$auths = get_enabled_auth_plugins();
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mtrace("Running auth crons if required...");
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cron_trace_time_and_memory();
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foreach ($auths as $auth) {
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$authplugin = get_auth_plugin($auth);
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if (method_exists($authplugin, 'cron')) {
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mtrace("Running cron for auth/$auth...");
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$authplugin->cron();
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if (!empty($authplugin->log)) {
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mtrace($authplugin->log);
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}
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}
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unset($authplugin);
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}
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// Generate new password emails for users - ppl expect these generated asap
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if ($DB->count_records('user_preferences', array('name'=>'create_password', 'value'=>'1'))) {
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mtrace('Creating passwords for new users...');
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$newusers = $DB->get_recordset_sql("SELECT u.id as id, u.email, u.firstname,
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u.lastname, u.username, u.lang,
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p.id as prefid
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FROM {user} u
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JOIN {user_preferences} p ON u.id=p.userid
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WHERE p.name='create_password' AND p.value='1' AND u.email !='' AND u.suspended = 0 AND u.auth != 'nologin' AND u.deleted = 0");
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// note: we can not send emails to suspended accounts
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foreach ($newusers as $newuser) {
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// Use a low cost factor when generating bcrypt hash otherwise
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// hashing would be slow when emailing lots of users. Hashes
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// will be automatically updated to a higher cost factor the first
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// time the user logs in.
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if (setnew_password_and_mail($newuser, true)) {
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unset_user_preference('create_password', $newuser);
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set_user_preference('auth_forcepasswordchange', 1, $newuser);
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} else {
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trigger_error("Could not create and mail new user password!");
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}
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}
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$newusers->close();
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}
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// It is very important to run enrol early
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// because other plugins depend on correct enrolment info.
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mtrace("Running enrol crons if required...");
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$enrols = enrol_get_plugins(true);
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foreach($enrols as $ename=>$enrol) {
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// do this for all plugins, disabled plugins might want to cleanup stuff such as roles
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if (!$enrol->is_cron_required()) {
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continue;
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}
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mtrace("Running cron for enrol_$ename...");
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cron_trace_time_and_memory();
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$enrol->cron();
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$enrol->set_config('lastcron', time());
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}
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// Run all cron jobs for each module
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mtrace("Starting activity modules");
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get_mailer('buffer');
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if ($mods = $DB->get_records_select("modules", "cron > 0 AND ((? - lastcron) > cron) AND visible = 1", array($timenow))) {
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foreach ($mods as $mod) {
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$libfile = "$CFG->dirroot/mod/$mod->name/lib.php";
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if (file_exists($libfile)) {
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include_once($libfile);
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$cron_function = $mod->name."_cron";
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if (function_exists($cron_function)) {
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mtrace("Processing module function $cron_function ...", '');
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cron_trace_time_and_memory();
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$pre_dbqueries = null;
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$pre_dbqueries = $DB->perf_get_queries();
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$pre_time = microtime(1);
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if ($cron_function()) {
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$DB->set_field("modules", "lastcron", $timenow, array("id"=>$mod->id));
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}
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if (isset($pre_dbqueries)) {
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mtrace("... used " . ($DB->perf_get_queries() - $pre_dbqueries) . " dbqueries");
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mtrace("... used " . (microtime(1) - $pre_time) . " seconds");
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}
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// Reset possible changes by modules to time_limit. MDL-11597
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@set_time_limit(0);
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mtrace("done.");
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}
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}
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}
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}
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get_mailer('close');
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mtrace("Finished activity modules");
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mtrace("Starting blocks");
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if ($blocks = $DB->get_records_select("block", "cron > 0 AND ((? - lastcron) > cron) AND visible = 1", array($timenow))) {
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// We will need the base class.
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require_once($CFG->dirroot.'/blocks/moodleblock.class.php');
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foreach ($blocks as $block) {
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$blockfile = $CFG->dirroot.'/blocks/'.$block->name.'/block_'.$block->name.'.php';
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if (file_exists($blockfile)) {
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require_once($blockfile);
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$classname = 'block_'.$block->name;
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$blockobj = new $classname;
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if (method_exists($blockobj,'cron')) {
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mtrace("Processing cron function for ".$block->name.'....','');
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cron_trace_time_and_memory();
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if ($blockobj->cron()) {
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$DB->set_field('block', 'lastcron', $timenow, array('id'=>$block->id));
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}
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// Reset possible changes by blocks to time_limit. MDL-11597
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@set_time_limit(0);
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mtrace('done.');
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}
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}
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}
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}
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mtrace('Finished blocks');
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mtrace('Starting admin reports');
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cron_execute_plugin_type('report');
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mtrace('Finished admin reports');
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mtrace('Starting main gradebook job...');
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cron_trace_time_and_memory();
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grade_cron();
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mtrace('done.');
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mtrace('Starting processing the event queue...');
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cron_trace_time_and_memory();
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events_cron();
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mtrace('done.');
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if ($CFG->enablecompletion) {
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// Completion cron
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mtrace('Starting the completion cron...');
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cron_trace_time_and_memory();
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require_once($CFG->dirroot.'/completion/cron.php');
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completion_cron();
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mtrace('done');
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}
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if ($CFG->enableportfolios) {
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// Portfolio cron
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mtrace('Starting the portfolio cron...');
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cron_trace_time_and_memory();
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require_once($CFG->libdir . '/portfoliolib.php');
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portfolio_cron();
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mtrace('done');
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}
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//now do plagiarism checks
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require_once($CFG->libdir.'/plagiarismlib.php');
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plagiarism_cron();
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mtrace('Starting course reports');
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cron_execute_plugin_type('coursereport');
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mtrace('Finished course reports');
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// run gradebook import/export/report cron
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mtrace('Starting gradebook plugins');
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cron_execute_plugin_type('gradeimport');
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cron_execute_plugin_type('gradeexport');
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cron_execute_plugin_type('gradereport');
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mtrace('Finished gradebook plugins');
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// run calendar cron
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require_once "{$CFG->dirroot}/calendar/lib.php";
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calendar_cron();
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// Run external blog cron if needed
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if (!empty($CFG->enableblogs) && $CFG->useexternalblogs) {
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require_once($CFG->dirroot . '/blog/lib.php');
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mtrace("Fetching external blog entries...", '');
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cron_trace_time_and_memory();
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$sql = "timefetched < ? OR timefetched = 0";
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$externalblogs = $DB->get_records_select('blog_external', $sql, array(time() - $CFG->externalblogcrontime));
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foreach ($externalblogs as $eb) {
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blog_sync_external_entries($eb);
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}
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mtrace('done.');
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}
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// Run blog associations cleanup
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if (!empty($CFG->enableblogs) && $CFG->useblogassociations) {
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require_once($CFG->dirroot . '/blog/lib.php');
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// delete entries whose contextids no longer exists
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mtrace("Deleting blog associations linked to non-existent contexts...", '');
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cron_trace_time_and_memory();
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$DB->delete_records_select('blog_association', 'contextid NOT IN (SELECT id FROM {context})');
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mtrace('done.');
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}
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// Run question bank clean-up.
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mtrace("Starting the question bank cron...", '');
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cron_trace_time_and_memory();
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require_once($CFG->libdir . '/questionlib.php');
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question_bank::cron();
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mtrace('done.');
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//Run registration updated cron
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mtrace(get_string('siteupdatesstart', 'hub'));
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cron_trace_time_and_memory();
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require_once($CFG->dirroot . '/' . $CFG->admin . '/registration/lib.php');
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$registrationmanager = new registration_manager();
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$registrationmanager->cron();
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mtrace(get_string('siteupdatesend', 'hub'));
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// If enabled, fetch information about available updates and eventually notify site admins
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if (empty($CFG->disableupdatenotifications)) {
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require_once($CFG->libdir.'/pluginlib.php');
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$updateschecker = available_update_checker::instance();
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$updateschecker->cron();
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}
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//cleanup old session linked tokens
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//deletes the session linked tokens that are over a day old.
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mtrace("Deleting session linked tokens more than one day old...", '');
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cron_trace_time_and_memory();
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$DB->delete_records_select('external_tokens', 'lastaccess < :onedayago AND tokentype = :tokentype',
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array('onedayago' => time() - DAYSECS, 'tokentype' => EXTERNAL_TOKEN_EMBEDDED));
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mtrace('done.');
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// all other plugins
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cron_execute_plugin_type('message', 'message plugins');
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cron_execute_plugin_type('filter', 'filters');
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cron_execute_plugin_type('editor', 'editors');
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cron_execute_plugin_type('format', 'course formats');
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cron_execute_plugin_type('profilefield', 'profile fields');
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cron_execute_plugin_type('webservice', 'webservices');
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cron_execute_plugin_type('repository', 'repository plugins');
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cron_execute_plugin_type('qbehaviour', 'question behaviours');
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cron_execute_plugin_type('qformat', 'question import/export formats');
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cron_execute_plugin_type('qtype', 'question types');
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cron_execute_plugin_type('plagiarism', 'plagiarism plugins');
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cron_execute_plugin_type('theme', 'themes');
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cron_execute_plugin_type('tool', 'admin tools');
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// and finally run any local cronjobs, if any
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if ($locals = core_component::get_plugin_list('local')) {
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mtrace('Processing customized cron scripts ...', '');
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// new cron functions in lib.php first
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cron_execute_plugin_type('local');
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// legacy cron files are executed directly
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foreach ($locals as $local => $localdir) {
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if (file_exists("$localdir/cron.php")) {
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include("$localdir/cron.php");
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}
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}
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mtrace('done.');
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}
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mtrace('Running cache cron routines');
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cache_helper::cron();
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mtrace('done.');
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// Run automated backups if required - these may take a long time to execute
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require_once($CFG->dirroot.'/backup/util/includes/backup_includes.php');
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require_once($CFG->dirroot.'/backup/util/helper/backup_cron_helper.class.php');
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backup_cron_automated_helper::run_automated_backup();
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// Run stats as at the end because they are known to take very long time on large sites
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if (!empty($CFG->enablestats) and empty($CFG->disablestatsprocessing)) {
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require_once($CFG->dirroot.'/lib/statslib.php');
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// check we're not before our runtime
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$timetocheck = stats_get_base_daily() + $CFG->statsruntimestarthour*60*60 + $CFG->statsruntimestartminute*60;
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if (time() > $timetocheck) {
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// process configured number of days as max (defaulting to 31)
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$maxdays = empty($CFG->statsruntimedays) ? 31 : abs($CFG->statsruntimedays);
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if (stats_cron_daily($maxdays)) {
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if (stats_cron_weekly()) {
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if (stats_cron_monthly()) {
|
|
stats_clean_old();
|
|
}
|
|
}
|
|
}
|
|
@set_time_limit(0);
|
|
} else {
|
|
mtrace('Next stats run after:'. userdate($timetocheck));
|
|
}
|
|
}
|
|
|
|
// Run badges review cron.
|
|
mtrace("Starting badges cron...");
|
|
require_once($CFG->dirroot . '/badges/cron.php');
|
|
badge_cron();
|
|
mtrace('done.');
|
|
|
|
// cleanup file trash - not very important
|
|
$fs = get_file_storage();
|
|
$fs->cron();
|
|
|
|
mtrace("Cron script completed correctly");
|
|
|
|
gc_collect_cycles();
|
|
mtrace('Cron completed at ' . date('H:i:s') . '. Memory used ' . display_size(memory_get_usage()) . '.');
|
|
$difftime = microtime_diff($starttime, microtime());
|
|
mtrace("Execution took ".$difftime." seconds");
|
|
}
|
|
|
|
/**
|
|
* Executes cron functions for a specific type of plugin.
|
|
*
|
|
* @param string $plugintype Plugin type (e.g. 'report')
|
|
* @param string $description If specified, will display 'Starting (whatever)'
|
|
* and 'Finished (whatever)' lines, otherwise does not display
|
|
*/
|
|
function cron_execute_plugin_type($plugintype, $description = null) {
|
|
global $DB;
|
|
|
|
// Get list from plugin => function for all plugins
|
|
$plugins = get_plugin_list_with_function($plugintype, 'cron');
|
|
|
|
// Modify list for backward compatibility (different files/names)
|
|
$plugins = cron_bc_hack_plugin_functions($plugintype, $plugins);
|
|
|
|
// Return if no plugins with cron function to process
|
|
if (!$plugins) {
|
|
return;
|
|
}
|
|
|
|
if ($description) {
|
|
mtrace('Starting '.$description);
|
|
}
|
|
|
|
foreach ($plugins as $component=>$cronfunction) {
|
|
$dir = core_component::get_component_directory($component);
|
|
|
|
// Get cron period if specified in version.php, otherwise assume every cron
|
|
$cronperiod = 0;
|
|
if (file_exists("$dir/version.php")) {
|
|
$plugin = new stdClass();
|
|
include("$dir/version.php");
|
|
if (isset($plugin->cron)) {
|
|
$cronperiod = $plugin->cron;
|
|
}
|
|
}
|
|
|
|
// Using last cron and cron period, don't run if it already ran recently
|
|
$lastcron = get_config($component, 'lastcron');
|
|
if ($cronperiod && $lastcron) {
|
|
if ($lastcron + $cronperiod > time()) {
|
|
// do not execute cron yet
|
|
continue;
|
|
}
|
|
}
|
|
|
|
mtrace('Processing cron function for ' . $component . '...');
|
|
cron_trace_time_and_memory();
|
|
$pre_dbqueries = $DB->perf_get_queries();
|
|
$pre_time = microtime(true);
|
|
|
|
$cronfunction();
|
|
|
|
mtrace("done. (" . ($DB->perf_get_queries() - $pre_dbqueries) . " dbqueries, " .
|
|
round(microtime(true) - $pre_time, 2) . " seconds)");
|
|
|
|
set_config('lastcron', time(), $component);
|
|
@set_time_limit(0);
|
|
}
|
|
|
|
if ($description) {
|
|
mtrace('Finished ' . $description);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Used to add in old-style cron functions within plugins that have not been converted to the
|
|
* new standard API. (The standard API is frankenstyle_name_cron() in lib.php; some types used
|
|
* cron.php and some used a different name.)
|
|
*
|
|
* @param string $plugintype Plugin type e.g. 'report'
|
|
* @param array $plugins Array from plugin name (e.g. 'report_frog') to function name (e.g.
|
|
* 'report_frog_cron') for plugin cron functions that were already found using the new API
|
|
* @return array Revised version of $plugins that adds in any extra plugin functions found by
|
|
* looking in the older location
|
|
*/
|
|
function cron_bc_hack_plugin_functions($plugintype, $plugins) {
|
|
global $CFG; // mandatory in case it is referenced by include()d PHP script
|
|
|
|
if ($plugintype === 'report') {
|
|
// Admin reports only - not course report because course report was
|
|
// never implemented before, so doesn't need BC
|
|
foreach (core_component::get_plugin_list($plugintype) as $pluginname=>$dir) {
|
|
$component = $plugintype . '_' . $pluginname;
|
|
if (isset($plugins[$component])) {
|
|
// We already have detected the function using the new API
|
|
continue;
|
|
}
|
|
if (!file_exists("$dir/cron.php")) {
|
|
// No old style cron file present
|
|
continue;
|
|
}
|
|
include_once("$dir/cron.php");
|
|
$cronfunction = $component . '_cron';
|
|
if (function_exists($cronfunction)) {
|
|
$plugins[$component] = $cronfunction;
|
|
} else {
|
|
debugging("Invalid legacy cron.php detected in $component, " .
|
|
"please use lib.php instead");
|
|
}
|
|
}
|
|
} else if (strpos($plugintype, 'grade') === 0) {
|
|
// Detect old style cron function names
|
|
// Plugin gradeexport_frog used to use grade_export_frog_cron() instead of
|
|
// new standard API gradeexport_frog_cron(). Also applies to gradeimport, gradereport
|
|
foreach(core_component::get_plugin_list($plugintype) as $pluginname=>$dir) {
|
|
$component = $plugintype.'_'.$pluginname;
|
|
if (isset($plugins[$component])) {
|
|
// We already have detected the function using the new API
|
|
continue;
|
|
}
|
|
if (!file_exists("$dir/lib.php")) {
|
|
continue;
|
|
}
|
|
include_once("$dir/lib.php");
|
|
$cronfunction = str_replace('grade', 'grade_', $plugintype) . '_' .
|
|
$pluginname . '_cron';
|
|
if (function_exists($cronfunction)) {
|
|
$plugins[$component] = $cronfunction;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $plugins;
|
|
}
|
|
|
|
/**
|
|
* Output some standard information during cron runs. Specifically current time
|
|
* and memory usage. This method also does gc_collect_cycles() (before displaying
|
|
* memory usage) to try to help PHP manage memory better.
|
|
*/
|
|
function cron_trace_time_and_memory() {
|
|
gc_collect_cycles();
|
|
mtrace('... started ' . date('H:i:s') . '. Current memory use ' . display_size(memory_get_usage()) . '.');
|
|
}
|
|
|
|
/**
|
|
* Notify admin users or admin user of any failed logins (since last notification).
|
|
*
|
|
* Note that this function must be only executed from the cron script
|
|
* It uses the cache_flags system to store temporary records, deleting them
|
|
* by name before finishing
|
|
*
|
|
* @return bool True if executed, false if not
|
|
*/
|
|
function notify_login_failures() {
|
|
global $CFG, $DB, $OUTPUT;
|
|
|
|
if (empty($CFG->notifyloginfailures)) {
|
|
return false;
|
|
}
|
|
|
|
$recip = get_users_from_config($CFG->notifyloginfailures, 'moodle/site:config');
|
|
|
|
if (empty($CFG->lastnotifyfailure)) {
|
|
$CFG->lastnotifyfailure=0;
|
|
}
|
|
|
|
// If it has been less than an hour, or if there are no recipients, don't execute.
|
|
if (((time() - HOURSECS) < $CFG->lastnotifyfailure) || !is_array($recip) || count($recip) <= 0) {
|
|
return false;
|
|
}
|
|
|
|
// we need to deal with the threshold stuff first.
|
|
if (empty($CFG->notifyloginthreshold)) {
|
|
$CFG->notifyloginthreshold = 10; // default to something sensible.
|
|
}
|
|
|
|
// Get all the IPs with more than notifyloginthreshold failures since lastnotifyfailure
|
|
// and insert them into the cache_flags temp table
|
|
$sql = "SELECT ip, COUNT(*)
|
|
FROM {log}
|
|
WHERE module = 'login' AND action = 'error'
|
|
AND time > ?
|
|
GROUP BY ip
|
|
HAVING COUNT(*) >= ?";
|
|
$params = array($CFG->lastnotifyfailure, $CFG->notifyloginthreshold);
|
|
$rs = $DB->get_recordset_sql($sql, $params);
|
|
foreach ($rs as $iprec) {
|
|
if (!empty($iprec->ip)) {
|
|
set_cache_flag('login_failure_by_ip', $iprec->ip, '1', 0);
|
|
}
|
|
}
|
|
$rs->close();
|
|
|
|
// Get all the INFOs with more than notifyloginthreshold failures since lastnotifyfailure
|
|
// and insert them into the cache_flags temp table
|
|
$sql = "SELECT info, count(*)
|
|
FROM {log}
|
|
WHERE module = 'login' AND action = 'error'
|
|
AND time > ?
|
|
GROUP BY info
|
|
HAVING count(*) >= ?";
|
|
$params = array($CFG->lastnotifyfailure, $CFG->notifyloginthreshold);
|
|
$rs = $DB->get_recordset_sql($sql, $params);
|
|
foreach ($rs as $inforec) {
|
|
if (!empty($inforec->info)) {
|
|
set_cache_flag('login_failure_by_info', $inforec->info, '1', 0);
|
|
}
|
|
}
|
|
$rs->close();
|
|
|
|
// Now, select all the login error logged records belonging to the ips and infos
|
|
// since lastnotifyfailure, that we have stored in the cache_flags table
|
|
$sql = "SELECT * FROM (
|
|
SELECT l.*, u.firstname, u.lastname
|
|
FROM {log} l
|
|
JOIN {cache_flags} cf ON l.ip = cf.name
|
|
LEFT JOIN {user} u ON l.userid = u.id
|
|
WHERE l.module = 'login' AND l.action = 'error'
|
|
AND l.time > ?
|
|
AND cf.flagtype = 'login_failure_by_ip'
|
|
UNION ALL
|
|
SELECT l.*, u.firstname, u.lastname
|
|
FROM {log} l
|
|
JOIN {cache_flags} cf ON l.info = cf.name
|
|
LEFT JOIN {user} u ON l.userid = u.id
|
|
WHERE l.module = 'login' AND l.action = 'error'
|
|
AND l.time > ?
|
|
AND cf.flagtype = 'login_failure_by_info') t
|
|
ORDER BY t.time DESC";
|
|
$params = array($CFG->lastnotifyfailure, $CFG->lastnotifyfailure);
|
|
|
|
// Init some variables
|
|
$count = 0;
|
|
$messages = '';
|
|
// Iterate over the logs recordset
|
|
$rs = $DB->get_recordset_sql($sql, $params);
|
|
foreach ($rs as $log) {
|
|
$log->time = userdate($log->time);
|
|
$messages .= get_string('notifyloginfailuresmessage','',$log)."\n";
|
|
$count++;
|
|
}
|
|
$rs->close();
|
|
|
|
// If we have something useful to report.
|
|
if ($count > 0) {
|
|
$site = get_site();
|
|
$subject = get_string('notifyloginfailuressubject', '', format_string($site->fullname));
|
|
// Calculate the complete body of notification (start + messages + end)
|
|
$body = get_string('notifyloginfailuresmessagestart', '', $CFG->wwwroot) .
|
|
(($CFG->lastnotifyfailure != 0) ? '('.userdate($CFG->lastnotifyfailure).')' : '')."\n\n" .
|
|
$messages .
|
|
"\n\n".get_string('notifyloginfailuresmessageend','',$CFG->wwwroot)."\n\n";
|
|
|
|
// For each destination, send mail
|
|
mtrace('Emailing admins about '. $count .' failed login attempts');
|
|
foreach ($recip as $admin) {
|
|
//emailing the admins directly rather than putting these through the messaging system
|
|
email_to_user($admin, core_user::get_support_user(), $subject, $body);
|
|
}
|
|
}
|
|
|
|
// Update lastnotifyfailure with current time
|
|
set_config('lastnotifyfailure', time());
|
|
|
|
// Finally, delete all the temp records we have created in cache_flags
|
|
$DB->delete_records_select('cache_flags', "flagtype IN ('login_failure_by_ip', 'login_failure_by_info')");
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Delete files and directories older than one week from directory provided by $CFG->tempdir.
|
|
*
|
|
* @exception Exception Failed reading/accessing file or directory
|
|
* @return bool True on successful file and directory deletion; otherwise, false on failure
|
|
*/
|
|
function cron_delete_from_temp() {
|
|
global $CFG;
|
|
|
|
$tmpdir = $CFG->tempdir;
|
|
// Default to last weeks time.
|
|
$time = strtotime('-1 week');
|
|
|
|
try {
|
|
$dir = new RecursiveDirectoryIterator($tmpdir);
|
|
// Show all child nodes prior to their parent.
|
|
$iter = new RecursiveIteratorIterator($dir, RecursiveIteratorIterator::CHILD_FIRST);
|
|
|
|
for ($iter->rewind(); $iter->valid(); $iter->next()) {
|
|
$node = $iter->getRealPath();
|
|
if (!is_readable($node)) {
|
|
continue;
|
|
}
|
|
// Check if file or directory is older than the given time.
|
|
if ($iter->getMTime() < $time) {
|
|
if ($iter->isDir() && !$iter->isDot()) {
|
|
if (@rmdir($node) === false) {
|
|
mtrace("Failed removing directory '$node'.");
|
|
}
|
|
}
|
|
if ($iter->isFile()) {
|
|
if (@unlink($node) === false) {
|
|
mtrace("Failed removing file '$node'.");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} catch (Exception $e) {
|
|
mtrace('Failed reading/accessing file or directory.');
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|