102 lines
2.5 KiB
PHP
102 lines
2.5 KiB
PHP
<?php
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/**
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* @author ThemePunch <info@themepunch.com>
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* @link http://www.themepunch.com/
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* @copyright 2017 ThemePunch
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*/
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if( !defined( 'ABSPATH') ) exit();
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class RevSliderLoadBalancer {
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public $servers = array();
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/**
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* set the server list on construct
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**/
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public function __construct(){
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$this->servers = get_option('revslider_servers', array());
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$this->servers = (empty($this->servers)) ? array('themepunch.tools') : $this->servers; //, 'themepunch-ext-a.tools'
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}
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/**
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* get the url depending on the purpose, here with key, you can switch do a different server
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**/
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public function get_url($purpose, $key = 0){
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$url = 'https://';
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$use_url = (!isset($this->servers[$key])) ? reset($this->servers) : $this->servers[$key];
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//$use_url = 'themepunch.tools';
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switch($purpose){
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case 'updates':
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$url .= 'updates.';
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break;
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case 'templates':
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$url .= 'templates.';
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break;
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case 'library':
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$url .= 'library.';
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break;
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default:
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return false;
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}
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$url .= $use_url;
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return $url;
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}
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/**
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* refresh the server list to be used, will be done once in a month
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**/
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public function refresh_server_list($force = false){
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global $wp_version;
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$last_check = get_option('revslider_server_refresh', false);
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if($force === true || $last_check === false || time() - $last_check > 60 * 60 * 24 * 14){
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//$url = $this->get_url('updates');
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$url = 'https://updates.themepunch.tools';
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$count = 0;
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/*$response = false;
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do{*/
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$request = wp_remote_post($url.'/get_server_list.php', array(
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'user-agent' => 'WordPress/'.$wp_version.'; '.get_bloginfo('url'),
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'body' => array(
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'item' => urlencode(RS_PLUGIN_SLUG),
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'version' => urlencode(RevSliderGlobals::SLIDER_REVISION)
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),
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'timeout' => 45
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));
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if(!is_wp_error($request)){
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if($response = maybe_unserialize($request['body'])){
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$list = json_decode($response, true);
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update_option('revslider_servers', $list);
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}
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}/*else{
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$url = $this->get_url('updates');
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}
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$count++;
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}while($response === false && $count < 5);*/
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update_option('revslider_server_refresh', time());
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}
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}
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/**
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* move the server list, to take the next server as the one currently seems unavailable
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**/
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public function move_server_list(){
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$servers = $this->servers;
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$a = array_shift($servers);
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$servers[] = $a;
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$this->servers = $servers;
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update_option('revslider_servers', $servers);
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}
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}
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?>
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