mirror of
https://github.com/phpbb/phpbb.git
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135 lines
3.5 KiB
PHP
135 lines
3.5 KiB
PHP
<?php
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/**
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*
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* @package phpBB3
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* @version $Id$
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* @copyright (c) 2010 phpBB Group
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License
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*
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*/
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/**
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* @ignore
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*/
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if (!defined('IN_PHPBB'))
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{
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exit;
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}
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/**
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* Cron class
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* @package phpBB3
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*/
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class cron
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{
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var $tasks = array();
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function cron() {
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global $config, $phpbb_root_path, $phpEx;
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$modules = $config['cron_modules'];
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$modules = explode(',', $modules);
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foreach ($modules as $module) {
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// explode will return array("") when exploding an empty string;
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// users may also specify something like foo,,bar.
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// Account for module being possibly empty
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if (!empty($module)) {
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// Misspelling or specifying nonexistent modules here may make the board
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// unusable due to error messages screwing up header output
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include_once($phpbb_root_path . "includes/cron/$module.$phpEx");
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$cron_class = "cron_tasks_$module";
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$object = new $cron_class;
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foreach ($object->tasks as $cron_type => $params) {
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$params['object'] = $object;
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$this->tasks[$cron_type] = $params;
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}
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}
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}
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}
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function is_valid_task($cron_type) {
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return isset($this->tasks[$cron_type]);
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}
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function is_task_runnable($cron_type, $args=null) {
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global $config;
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$time_now = time();
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$cron_params = $this->tasks[$cron_type];
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if ($cron_params['enable_config'] && !$config[$cron_params['enable_config']]) {
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return false;
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}
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if ($cron_param['custom_condition']) {
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$callable = array($cron_params['object'], $cron_type . '_condition');
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if ($args) {
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$answer = call_user_func_array($callable, $args);
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} else {
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$answer = call_user_func($callable);
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}
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if (!$answer) {
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return false;
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}
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}
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if ($time_now - $config[$cron_params['interval_config']] > $config[$cron_params['last_run_config']]) {
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return true;
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}
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return false;
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}
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function is_task_shutdown_function_compatible($cron_type) {
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$cron_params = $this->tasks[$cron_type];
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if (isset($cron_params['shutdown_function_condition'])) {
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return call_user_func(array($cron_params->object, $cron_type . '_shutdown_function_condition'));
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} else {
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return true;
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}
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}
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function determine_cron_mode_param() {
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global $config;
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if ($config['use_system_cron']) {
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$mode = 'run_from_system';
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} else {
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$mode_param = 'run_from_phpbb';
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}
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return $mode_param;
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}
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function find_one_runnable_task() {
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$mode_param = $this->determine_cron_mode_param();
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foreach ($this->tasks as $cron_type => $cron_params) {
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if ($cron_params[$mode_param] && $this->is_task_runnable($cron_type)) {
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return $cron_type;
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}
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}
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return null;
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}
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function find_all_runnable_tasks() {
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$mode_param = $this->determine_cron_mode_param();
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$tasks = array();
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foreach ($this->tasks as $cron_type => $cron_params) {
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if ($cron_params[$mode_param] && $this->is_task_runnable($cron_type)) {
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$tasks[] = $cron_type;
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}
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}
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return $tasks;
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}
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function generate_task_code($cron_type, $args=array()) {
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$cron_params = $this->tasks[$cron_type];
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if ($cron_params['custom_code']) {
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$code = call_user_func_array(array($cron_params['object'], $cron_type . '_code'), $args);
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} else {
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$code = $this->generate_generic_task_code($cron_type);
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}
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return $code;
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}
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function generate_generic_task_code($cron_type) {
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global $phpbb_root_path, $phpEx;
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return '<img src="' . append_sid($phpbb_root_path . 'cron.' . $phpEx, 'cron_type=' . $cron_type) . '" width="1" height="1" alt="cron" />';
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}
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function run_task($cron_type) {
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call_user_func(array($this->tasks[$cron_type]['object'], 'run_' . $cron_type));
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}
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}
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