<?php

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/**

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* The cron task class.

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*

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* @since 1.1.3

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* @since 1.5 Moved into /inc

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*/

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namespace LiteSpeed;

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defined('WPINC') || exit();

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class Task extends Root

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{

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const LOG_TAG = '⏰';

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private static $_triggers = array(

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Base::O_IMG_OPTM_CRON => array('name' => 'litespeed_task_imgoptm_pull', 'hook' => 'LiteSpeed\Img_Optm::start_async_cron'), // always fetch immediately

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Base::O_OPTM_CSS_ASYNC => array('name' => 'litespeed_task_ccss', 'hook' => 'LiteSpeed\CSS::cron_ccss'),

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Base::O_OPTM_UCSS => array('name' => 'litespeed_task_ucss', 'hook' => 'LiteSpeed\UCSS::cron'),

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Base::O_MEDIA_VPI_CRON => array('name' => 'litespeed_task_vpi', 'hook' => 'LiteSpeed\VPI::cron'),

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Base::O_MEDIA_PLACEHOLDER_RESP_ASYNC => array('name' => 'litespeed_task_lqip', 'hook' => 'LiteSpeed\Placeholder::cron'),

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Base::O_DISCUSS_AVATAR_CRON => array('name' => 'litespeed_task_avatar', 'hook' => 'LiteSpeed\Avatar::cron'),

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Base::O_IMG_OPTM_AUTO => array('name' => 'litespeed_task_imgoptm_req', 'hook' => 'LiteSpeed\Img_Optm::cron_auto_request'),

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Base::O_CRAWLER => array('name' => 'litespeed_task_crawler', 'hook' => 'LiteSpeed\Crawler::start_async_cron'), // Set crawler to last one to use above results

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);

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private static $_guest_options = array(Base::O_OPTM_CSS_ASYNC, Base::O_OPTM_UCSS, Base::O_MEDIA_VPI);

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const FILTER_CRAWLER = 'litespeed_crawl_filter';

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const FILTER = 'litespeed_filter';

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/**

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* Keep all tasks in cron

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*

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* @since 3.0

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* @access public

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*/

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public function init()

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{

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self::debug2('Init');

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add_filter('cron_schedules', array($this, 'lscache_cron_filter'));

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$guest_optm = $this->conf(Base::O_GUEST) && $this->conf(Base::O_GUEST_OPTM);

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foreach (self::$_triggers as $id => $trigger) {

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if (!$this->conf($id)) {

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if (!$guest_optm || !in_array($id, self::$_guest_options)) {

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continue;

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}

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}

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// Special check for crawler

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if ($id == Base::O_CRAWLER) {

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if (!Router::can_crawl()) {

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continue;

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}

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add_filter('cron_schedules', array($this, 'lscache_cron_filter_crawler'));

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}

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if (!wp_next_scheduled($trigger['name'])) {

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self::debug('Cron hook register [name] ' . $trigger['name']);

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wp_schedule_event(time(), $id == Base::O_CRAWLER ? self::FILTER_CRAWLER : self::FILTER, $trigger['name']);

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}

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add_action($trigger['name'], $trigger['hook']);

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}

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}

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/**

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* Handle all async noabort requests

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*

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* @since 5.5

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*/

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public static function async_litespeed_handler()

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{

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$hash_data = self::get_option('async_call-hash', array());

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if (!$hash_data || !is_array($hash_data) || empty($hash_data['hash']) || empty($hash_data['ts'])) {

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self::debug('async_litespeed_handler no hash data', $hash_data);

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return;

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}

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if (time() - $hash_data['ts'] > 120 || empty($_GET['nonce']) || $_GET['nonce'] != $hash_data['hash']) {

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self::debug('async_litespeed_handler nonce mismatch');

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return;

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}

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self::delete_option('async_call-hash');

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$type = Router::verify_type();

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self::debug('type=' . $type);

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// Don't lock up other requests while processing

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session_write_close();

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switch ($type) {

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case 'crawler':

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Crawler::async_handler();

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break;

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case 'crawler_force':

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Crawler::async_handler(true);

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break;

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case 'imgoptm':

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Img_Optm::async_handler();

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break;

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case 'imgoptm_force':

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Img_Optm::async_handler(true);

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break;

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default:

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}

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}

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/**

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* Async caller wrapper func

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*

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* @since 5.5

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*/

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public static function async_call($type)

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{

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$hash = Str::rrand(32);

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self::update_option('async_call-hash', array('hash' => $hash, 'ts' => time()));

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$args = array(

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'timeout' => 0.01,

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'blocking' => false,

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'sslverify' => false,

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// 'cookies' => $_COOKIE,

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);

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$qs = array(

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'action' => 'async_litespeed',

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'nonce' => $hash,

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Router::TYPE => $type,

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);

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$url = add_query_arg($qs, admin_url('admin-ajax.php'));

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self::debug('async call to ' . $url);

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wp_remote_post(esc_url_raw($url), $args);

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}

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/**

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* Clean all potential existing crons

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*

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* @since 3.0

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* @access public

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*/

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public static function destroy()

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{

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Utility::compatibility();

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array_map('wp_clear_scheduled_hook', array_column(self::$_triggers, 'name'));

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}

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/**

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* Try to clean the crons if disabled

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*

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* @since 3.0

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* @access public

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*/

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public function try_clean($id)

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{

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// Clean v2's leftover cron ( will remove in v3.1 )

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// foreach ( wp_get_ready_cron_jobs() as $hooks ) {

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// foreach ( $hooks as $hook => $v ) {

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// if ( strpos( $hook, 'litespeed_' ) === 0 && ( substr( $hook, -8 ) === '_trigger' || strpos( $hook, 'litespeed_task_' ) !== 0 ) ) {

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// self::debug( 'Cron clear legacy [hook] ' . $hook );

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// wp_clear_scheduled_hook( $hook );

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// }

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// }

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// }

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if ($id && !empty(self::$_triggers[$id])) {

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if (!$this->conf($id) || ($id == Base::O_CRAWLER && !Router::can_crawl())) {

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self::debug('Cron clear [id] ' . $id . ' [hook] ' . self::$_triggers[$id]['name']);

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wp_clear_scheduled_hook(self::$_triggers[$id]['name']);

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}

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return;

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}

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self::debug('❌ Unknown cron [id] ' . $id);

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}

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/**

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* Register cron interval imgoptm

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*

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* @since 1.6.1

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* @access public

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*/

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public function lscache_cron_filter($schedules)

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{

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if (!array_key_exists(self::FILTER, $schedules)) {

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$schedules[self::FILTER] = array(

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'interval' => 60,

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'display' => __('Every Minute', 'litespeed-cache'),

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);

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}

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return $schedules;

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}

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/**

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* Register cron interval

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*

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* @since 1.1.0

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* @access public

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*/

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public function lscache_cron_filter_crawler($schedules)

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{

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$interval = $this->conf(Base::O_CRAWLER_RUN_INTERVAL);

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// $wp_schedules = wp_get_schedules();

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if (!array_key_exists(self::FILTER_CRAWLER, $schedules)) {

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// self::debug('Crawler cron log: cron filter '.$interval.' added');

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$schedules[self::FILTER_CRAWLER] = array(

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'interval' => $interval,

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'display' => __('LiteSpeed Crawler Cron', 'litespeed-cache'),

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);

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}

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return $schedules;

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}

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}

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