Файловый менеджер - Редактировать - /home/avadvi5/public_html/wp-content/plugins/revslider/admin/includes/loadbalancer.class.php
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<?php /** * @author ThemePunch <info@themepunch.com> * @link https://www.themepunch.com/ * @copyright 2024 ThemePunch */ if(!defined('ABSPATH')) exit(); class RevSliderLoadBalancer extends RevSliderFunctions { public $last_request = null; public $servers = []; public $defaults = ['themepunch.tools', 'themepunch-ext-a.tools', 'themepunch-ext-b.tools', 'themepunch-ext-c.tools']; /** * set the server list on construct **/ public function __construct(){ $this->servers = get_option('revslider_servers', []); if(empty($this->servers)){ shuffle($this->defaults); update_option('revslider_servers', $this->defaults); } $this->servers = (empty($this->servers)) ? $this->defaults : $this->servers; } public function get_last_request(){ return $this->last_request; } /** * get the url depending on the purpose, here with key, you can switch do a different server **/ public function get_url($purpose, $key = 0, $force_http = false){ $url = ($force_http ) ? 'http://' : 'https://'; $use_url = (!isset($this->servers[$key])) ? reset($this->servers) : $this->servers[$key]; switch($purpose){ case 'updates': $url .= 'updates.'; break; case 'templates': $url .= 'templates.'; break; case 'library': $url .= 'library.'; break; default: return false; } $url .= $use_url; return $url; } /** * refresh the server list to be used, will be done once in a month **/ public function refresh_server_list($force = false){ global $wp_version; $rs_rsl = (isset($_GET['rs_refresh_server'])) ? true : false; $last_check = get_option('revslider_server_refresh', false); if($last_check === false || empty($last_check)) update_option('revslider_server_refresh', time()); if($force === true || $rs_rsl === true || ($last_check !== false && time() - $last_check > 60 * 60 * 24 * 30)){ $data = [ 'item' => urlencode( RS_PLUGIN_SLUG ), 'version' => urlencode( RS_REVISION ) ]; $request = $this->call_url('https://updates.themepunch.tools/get_server_list.php', $data); if(!is_wp_error($request)){ if($response = maybe_unserialize($request['body'])){ $list = json_decode($response, true); if(json_last_error() === JSON_ERROR_NONE && is_array($list)) { update_option('revslider_servers', $list); $this->servers = $list; } } } update_option('revslider_server_refresh', time()); } } /** * move the server list, to take the next server as the one currently seems unavailable **/ public function move_server_list(){ $servers = $this->servers; $a = array_shift($servers); $servers[] = $a; $this->servers = $servers; update_option('revslider_servers', $servers); } /** * call an themepunch URL and retrieve data **/ public function call_url($url, $data, $subdomain = 'updates', $force_http = false){ global $wp_version; //add version if not passed $data['version'] = (!isset($data['version'])) ? urlencode(RS_REVISION) : $data['version']; $count = 0; do{ $is_full_url = false; $full_url = $url; if(!preg_match("/^https?:\/\//i", $full_url)){ //just a filename passed, lets build an url $server = $this->get_url($subdomain, 0, $force_http); $full_url = $server . '/' . ltrim($full_url, '/'); }else{ $is_full_url = true; //full URL passed, lets check if we need to force http if($force_http) $full_url = preg_replace("/^https:\/\//i", "http://", $full_url); } $cf_lock = $this->get_cf_rate_limit_lock($full_url); if ( ! $cf_lock ) { $request = wp_safe_remote_post($full_url, [ 'user-agent' => 'WordPress/'.$wp_version.'; '.get_bloginfo('url'), 'body' => $data, 'timeout' => 45 ]); $response_code = wp_remote_retrieve_response_code($request); if($response_code == 200) return $request; if($response_code == 429) { $cf_lock = $this->set_cf_rate_limit_lock($full_url, $request); if ( $cf_lock ) { $request = $this->get_cf_wp_error( $cf_lock ); $this->last_request = $request; } } } else { $request = $this->get_cf_wp_error($cf_lock); $this->last_request = $request; } if ($is_full_url) { // full URL passed, no need to try other servers break; } $this->move_server_list(); $count++; }while( $count < 3 ); return $request; } /** * @param string $url * * @return string */ public function get_cf_transient_key($url){ $host = parse_url($url, PHP_URL_HOST); if (empty($host) || !strpos($host, '.tools')) return ''; return 'rs-cf-rate-limit-tools-' . md5($host); } /** * @param string $url Requested URL * @param array|WP_Error $response The response or WP_Error on failure. * * @return false|int */ public function set_cf_rate_limit_lock($url, $response){ $cf_transient_key = $this->get_cf_transient_key($url); if (empty($cf_transient_key)) return false; // CF send header "retry-after: 3586" // seconds before next attempt $retry_after = (int) wp_remote_retrieve_header($response, 'retry-after'); if ($retry_after <= 0) { $retry_after = 3600; } $cf_lock = time() + $retry_after; set_transient($cf_transient_key, $cf_lock, $retry_after); return $cf_lock; } /** * @param string $url Requested URL * * @return false|int */ public function get_cf_rate_limit_lock($url){ $cf_transient_key = $this->get_cf_transient_key($url); if (empty($cf_transient_key)) return false; return get_transient($cf_transient_key); } /** * @param int $cf_lock * * @return WP_Error */ public function get_cf_wp_error($cf_lock){ return new WP_Error('rate_limit_error', 'Too many requests from your IP, please try again in ' . human_time_diff( time(), $cf_lock ) . '.'); } }
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