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Edit File: cloud-request.trait.php

<?php /** * Cloud request trait * * @package LiteSpeed * @since 7.8 */ namespace LiteSpeed; defined( 'WPINC' ) || exit(); /** * Trait Cloud_Request * * Handles HTTP requests to QUIC.cloud servers. */ trait Cloud_Request { /** * Get data from QUIC cloud server * * @since 3.0 * @access public * * @param string $service Service. * @param array $data Data. * @return mixed */ public static function get( $service, $data = [] ) { $instance = self::cls(); return $instance->_get( $service, $data ); } /** * Get data from QUIC cloud server (private) * * @since 3.0 * @access private * * @param string $service Service. * @param array|bool $data Data array or false to omit. * @return mixed */ private function _get( $service, $data = false ) { $service_tag = $service; if ( ! empty( $data['action'] ) ) { $service_tag .= '-' . $data['action']; } $maybe_cloud = $this->_maybe_cloud( $service_tag ); if ( ! $maybe_cloud || 'svc_hot' === $maybe_cloud ) { return $maybe_cloud; } $server = $this->detect_cloud( $service ); if ( ! $server ) { return; } $url = $server . '/' . $service; $param = [ 'site_url' => site_url(), 'main_domain'=> ! empty( $this->_summary['main_domain'] ) ? $this->_summary['main_domain'] : '', 'ver' => Core::VER, ]; if ( $data ) { $param['data'] = $data; } $url .= '?' . http_build_query( $param ); self::debug( 'Cloud GET [service] ' . $service ); self::save_summary( [ 'curr_request.' . $service_tag => time() ] ); File::save( $this->_qc_time_file( $service_tag, 'curr' ), time(), true ); $response = wp_safe_remote_get( $url, [ 'timeout' => 15, 'headers' => [ 'Accept' => 'application/json' ], ] ); return $this->_parse_response( $response, $service, $service_tag, $server ); } /** * Check if is able to do cloud request or not * * @since 3.0 * @access private * * @param string $service_tag Service tag. * @return bool|string */ private function _maybe_cloud( $service_tag ) { $site_url = site_url(); if ( ! wp_http_validate_url( $site_url ) ) { self::debug( 'wp_http_validate_url failed: ' . $site_url ); return false; } // Deny if is IP if ( preg_match( '#^(([1-9]?\d|1\d\d|25[0-5]|2[0-4]\d)\.){3}([1-9]?\d|1\d\d|25[0-5]|2[0-4]\d)$#', Utility::parse_url_safe( $site_url, PHP_URL_HOST ) ) ) { self::debug( 'IP home url is not allowed for cloud service.' ); $msg = __( 'In order to use QC services, need a real domain name, cannot use an IP.', 'litespeed-cache' ); Admin_Display::error( $msg ); return false; } // If in valid err_domains, bypass request if ( $this->_is_err_domain( $site_url ) ) { self::debug( 'home url is in err_domains, bypass request: ' . $site_url ); return false; } // we don't want the `img_optm-taken` to fail at any given time if ( self::IMGOPTM_TAKEN === $service_tag ) { return true; } if ( self::SVC_D_SYNC_CONF === $service_tag && ! $this->activated() ) { self::debug( 'Skip sync conf as QC not activated yet.' ); return false; } // Check TTL if ( ! empty( $this->_summary[ 'ttl.' . $service_tag ] ) ) { $ttl = (int) $this->_summary[ 'ttl.' . $service_tag ] - time(); if ( $ttl > 0 ) { self::debug( '❌ TTL limit. [srv] ' . $service_tag . ' [TTL cool down] ' . $ttl . ' seconds' ); return 'svc_hot'; } } $expiration_req = self::EXPIRATION_REQ; // Limit frequent unfinished request to 5min $timestamp_tag = 'curr'; if ( self::SVC_IMG_OPTM . '-' . Img_Optm::TYPE_NEW_REQ === $service_tag ) { $timestamp_tag = 'last'; } // For all other requests, if is under debug mode, will always allow if ( ! $this->conf( self::O_DEBUG ) ) { if ( ! empty( $this->_summary[ $timestamp_tag . '_request.' . $service_tag ] ) ) { $expired = (int) $this->_summary[ $timestamp_tag . '_request.' . $service_tag ] + $expiration_req - time(); if ( $expired > 0 ) { self::debug( '❌ try [' . $service_tag . '] after ' . $expired . ' seconds' ); if ( self::API_VER !== $service_tag ) { $msg = __( 'Cloud Error', 'litespeed-cache' ) . ': ' . sprintf( __( 'Please try after %1$s for service %2$s.', 'litespeed-cache' ), Utility::readable_time( $expired, 0, true ), '<code>' . $service_tag . '</code>' ); Admin_Display::error( [ 'cloud_trylater' => $msg ] ); } return false; } } else { // May fail to store to db if db is oc cached/dead/locked/readonly. Need to store to file to prevent from duplicate calls $file_path = $this->_qc_time_file( $service_tag, $timestamp_tag ); if ( file_exists( $file_path ) ) { $last_request = File::read( $file_path ); $expired = (int) $last_request + $expiration_req * 10 - time(); if ( $expired > 0 ) { self::debug( '❌ try [' . $service_tag . '] after ' . $expired . ' seconds' ); return false; } } // For ver check, additional check to prevent frequent calls as old DB ver may be cached if ( self::API_VER === $service_tag ) { $file_path = $this->_qc_time_file( $service_tag ); if ( file_exists( $file_path ) ) { $last_request = File::read( $file_path ); $expired = (int) $last_request + $expiration_req * 10 - time(); if ( $expired > 0 ) { self::debug( '❌❌ Unusual req! try [' . $service_tag . '] after ' . $expired . ' seconds' ); return false; } } } } } if ( in_array( $service_tag, self::$_pub_svc_set, true ) ) { return true; } if ( ! $this->activated() && self::SVC_D_ACTIVATE !== $service_tag ) { Admin_Display::error( Error::msg( 'qc_setup_required' ) ); return false; } return true; } /** * Get QC req ts file path * * @since 7.5 * * @param string $service_tag Service tag. * @param string $type Type: 'last' or 'curr'. * @return string */ private function _qc_time_file( $service_tag, $type = 'last' ) { if ( 'curr' !== $type ) { $type = 'last'; } $legacy_file = LITESPEED_STATIC_DIR . '/qc_' . $type . '_request' . md5( $service_tag ); if ( file_exists( $legacy_file ) ) { wp_delete_file( $legacy_file ); } $service_tag = preg_replace( '/[^a-zA-Z0-9]/', '', $service_tag ); return LITESPEED_STATIC_DIR . '/qc.' . $type . '.' . $service_tag; } /** * Check if a service tag ttl is valid or not * * @since 7.1 * * @param string $service_tag Service tag. * @return int|false Seconds remaining or false if not hot. */ public function service_hot( $service_tag ) { if ( empty( $this->_summary[ 'ttl.' . $service_tag ] ) ) { return false; } $ttl = (int) $this->_summary[ 'ttl.' . $service_tag ] - time(); if ( $ttl <= 0 ) { return false; } return $ttl; } /** * Post data to QUIC.cloud server * * @since 3.0 * @access public * * @param string $service Service name/route. * @param array|bool $data Payload data or false to omit. * @param int|false $time_out Timeout seconds or false for default. * @return mixed Response payload or false on failure. */ public static function post( $service, $data = false, $time_out = false ) { $instance = self::cls(); return $instance->_post( $service, $data, $time_out ); } /** * Post data to cloud server * * @since 3.0 * @access private * * @param string $service Service name/route. * @param array|bool $data Payload data or false to omit. * @param int|false $time_out Timeout seconds or false for default. * @return mixed Response payload or false on failure. */ private function _post( $service, $data = false, $time_out = false ) { $service_tag = $service; if ( ! empty( $data['action'] ) ) { $service_tag .= '-' . $data['action']; } $maybe_cloud = $this->_maybe_cloud( $service_tag ); if ( ! $maybe_cloud || 'svc_hot' === $maybe_cloud ) { self::debug( 'Maybe cloud failed: ' . wp_json_encode( $maybe_cloud ) ); return $maybe_cloud; } $server = $this->detect_cloud( $service ); if ( ! $server ) { return; } $url = $server . '/' . $this->_maybe_queue( $service ); self::debug( 'posting to : ' . $url ); if ( $data ) { $data['service_type'] = $service; // For queue distribution usage } $param = [ 'site_url' => site_url(), // Need to use site_url() as WPML case may change home_url() for diff langs (no need to treat as alias for multi langs) 'main_domain' => ! empty( $this->_summary['main_domain'] ) ? $this->_summary['main_domain'] : '', 'wp_pk_b64' => ! empty( $this->_summary['pk_b64'] ) ? $this->_summary['pk_b64'] : '', 'ver' => Core::VER, 'data' => $data, ]; self::save_summary( [ 'curr_request.' . $service_tag => time() ] ); File::save( $this->_qc_time_file( $service_tag, 'curr' ), time(), true ); $response = wp_safe_remote_post( $url, [ 'body' => $param, 'timeout' => $time_out ? $time_out : 30, 'headers' => [ 'Accept' => 'application/json', 'Expect' => '', ], ] ); return $this->_parse_response( $response, $service, $service_tag, $server ); } /** * Parse response JSON * Mark the request successful if the response status is ok * * @since 3.0 * * @param array|mixed $response WP HTTP API response. * @param string $service Service name. * @param string $service_tag Service tag including action. * @param string $server Server URL. * @return array|false Parsed JSON array or false on failure. */ private function _parse_response( $response, $service, $service_tag, $server ) { // If show the error or not if failed $visible_err = self::API_VER !== $service && self::API_NEWS !== $service && self::SVC_D_DASH !== $service; if ( is_wp_error( $response ) ) { $error_message = $response->get_error_message(); self::debug( 'failed to request: ' . $error_message ); if ( $visible_err ) { $msg = esc_html__( 'Failed to request via WordPress', 'litespeed-cache' ) . ': ' . esc_html( $error_message ) . ' [server] ' . esc_html( $server ) . ' [service] ' . esc_html( $service ); Admin_Display::error( $msg ); // Tmp disabled this node from reusing in 1 day if ( empty( $this->_summary['disabled_node'] ) ) { $this->_summary['disabled_node'] = []; } $this->_summary['disabled_node'][ $server ] = time(); self::save_summary(); // Force redetect node self::debug( 'Node error, redetecting node [svc] ' . $service ); $this->detect_cloud( $service, true ); } return false; } $json = \json_decode( $response['body'], true ); if ( ! is_array( $json ) ) { self::debugErr( 'Failed to decode Cloud response JSON.' ); if ( $visible_err ) { $msg = esc_html__( 'Failed to request via WordPress', 'litespeed-cache' ) . ' [server] ' . esc_html( $server ) . ' [service] ' . esc_html( $service ); Admin_Display::error( $msg ); // Tmp disabled this node from reusing in 1 day if ( empty( $this->_summary['disabled_node'] ) ) { $this->_summary['disabled_node'] = []; } $this->_summary['disabled_node'][ $server ] = time(); self::save_summary(); // Force redetect node self::debugErr( 'Node error, redetecting node [svc] ' . $service ); $this->detect_cloud( $service, true ); } return false; } // Check and save TTL data if ( ! empty( $json['_ttl'] ) ) { $ttl = (int) $json['_ttl']; self::debug( 'Service TTL to save: ' . $ttl ); if ( $ttl > 0 && $ttl < 86400 ) { self::save_summary([ 'ttl.' . $service_tag => $ttl + time(), ]); } } if ( ! empty( $json['_code'] ) ) { self::debugErr( 'Hit err _code: ' . $json['_code'] ); if ( 'unpulled_images' === $json['_code'] ) { $msg = __( 'Cloud server refused the current request due to unpulled images. Please pull the images first.', 'litespeed-cache' ); Admin_Display::error( $msg ); return false; } if ( 'blocklisted' === $json['_code'] ) { $msg = __( 'Your domain_key has been temporarily blocklisted to prevent abuse. You may contact support at QUIC.cloud to learn more.', 'litespeed-cache' ); Admin_Display::error( $msg ); return false; } if ( 'rate_limit' === $json['_code'] ) { self::debugErr( 'Cloud server rate limit exceeded.' ); $msg = __( 'Cloud server refused the current request due to rate limiting. Please try again later.', 'litespeed-cache' ); Admin_Display::error( $msg ); return false; } if ( 'heavy_load' === $json['_code'] || 'redetect_node' === $json['_code'] ) { // Force redetect node self::debugErr( 'Node redetecting node [svc] ' . $service ); Admin_Display::info( __( 'Redetected node', 'litespeed-cache' ) . ': ' . Error::msg( $json['_code'] ) ); $this->detect_cloud( $service, true ); } } if ( ! empty( $json['_503'] ) ) { self::debugErr( 'service 503 unavailable temporarily. ' . $json['_503'] ); $msg = __( 'We are working hard to improve your online service experience. The service will be unavailable while we work. We apologize for any inconvenience.', 'litespeed-cache' ); $msg .= ' ' . $json['_503'] . ' [server] ' . esc_html( $server ) . ' [service] ' . esc_html( $service ); Admin_Display::error( $msg ); // Force redetect node self::debugErr( 'Node error, redetecting node [svc] ' . $service ); $this->detect_cloud( $service, true ); return false; } list( $json, $return ) = $this->extract_msg( $json, $service, $server ); if ( $return ) { return false; } $curr_request = $this->_summary[ 'curr_request.' . $service_tag ]; self::save_summary([ 'last_request.' . $service_tag => $curr_request, 'curr_request.' . $service_tag => 0, ]); File::save( $this->_qc_time_file( $service_tag ), $curr_request, true ); File::save( $this->_qc_time_file( $service_tag, 'curr' ), 0, true ); self::debug2( 'response ok' ); // Only successful request return Array return $json; } /** * Extract msg from json * * @since 5.0 * * @param array $json Response JSON. * @param string $service Service name. * @param string|bool $server Server URL or false. * @param bool $is_callback Whether called from callback context. * @return array Array with [json array, bool should_return_false] */ public function extract_msg( $json, $service, $server = false, $is_callback = false ) { if ( ! empty( $json['_info'] ) ) { self::debug( '_info: ' . $json['_info'] ); $msg = __( 'Message from QUIC.cloud server', 'litespeed-cache' ) . ': ' . $json['_info']; $msg .= $this->_parse_link( $json ); Admin_Display::info( $msg ); unset( $json['_info'] ); } if ( ! empty( $json['_note'] ) ) { self::debug( '_note: ' . $json['_note'] ); $msg = __( 'Message from QUIC.cloud server', 'litespeed-cache' ) . ': ' . $json['_note']; $msg .= $this->_parse_link( $json ); Admin_Display::note( $msg ); unset( $json['_note'] ); } if ( ! empty( $json['_success'] ) ) { self::debug( '_success: ' . $json['_success'] ); $msg = __( 'Good news from QUIC.cloud server', 'litespeed-cache' ) . ': ' . $json['_success']; $msg .= $this->_parse_link( $json ); Admin_Display::success( $msg ); unset( $json['_success'] ); } // Upgrade is required if ( ! empty( $json['_err_req_v'] ) ) { self::debug( '_err_req_v: ' . $json['_err_req_v'] ); $msg = sprintf( __( '%1$s plugin version %2$s required for this action.', 'litespeed-cache' ), Core::NAME, 'v' . $json['_err_req_v'] . '+' ) . ' [server] ' . esc_html( $server ) . ' [service] ' . esc_html( $service ); // Append upgrade link $msg2 = ' ' . GUI::plugin_upgrade_link( Core::NAME, Core::PLUGIN_NAME, $json['_err_req_v'] ); $msg2 .= $this->_parse_link( $json ); Admin_Display::error( $msg . $msg2 ); return [ $json, true ]; } // Parse _carry_on info if ( ! empty( $json['_carry_on'] ) ) { self::debug( 'Processing Cloud carry-on data.' ); // Store generic info foreach ( [ 'usage', 'promo', 'mini_html', 'partner', '_error', '_info', '_note', '_success' ] as $v ) { if ( isset( $json['_carry_on'][ $v ] ) ) { switch ( $v ) { case 'usage': $usage_svc_tag = in_array( $service, [ self::SVC_CCSS, self::SVC_UCSS, self::SVC_VPI ], true ) ? self::SVC_PAGE_OPTM : $service; $this->_summary[ 'usage.' . $usage_svc_tag ] = $json['_carry_on'][ $v ]; break; case 'promo': if ( empty( $this->_summary[ $v ] ) || ! is_array( $this->_summary[ $v ] ) ) { $this->_summary[ $v ] = []; } $this->_summary[ $v ][] = $json['_carry_on'][ $v ]; break; case 'mini_html': foreach ( $json['_carry_on'][ $v ] as $k2 => $v2 ) { if ( 0 === strpos( $k2, 'ttl.' ) ) { $v2 += time(); } $this->_summary[ $v ][ $k2 ] = $v2; } break; case 'partner': $this->_summary[ $v ] = $json['_carry_on'][ $v ]; break; case '_error': case '_info': case '_note': case '_success': $color_mode = substr( $v, 1 ); $msgs = $json['_carry_on'][ $v ]; Admin_Display::add_unique_notice( $color_mode, $msgs, true ); break; default: break; } } } self::save_summary(); unset( $json['_carry_on'] ); } // Parse general error msg if ( ! $is_callback && ( empty( $json['_res'] ) || 'ok' !== $json['_res'] ) ) { $json_msg = ! empty( $json['_msg'] ) ? $json['_msg'] : 'unknown'; self::debug( '❌ _err: ' . $json_msg ); $str_translated = Error::msg( $json_msg ); $msg = __( 'Failed to communicate with QUIC.cloud server', 'litespeed-cache' ) . ': ' . $str_translated . ' [server] ' . esc_html( $server ) . ' [service] ' . esc_html( $service ); $msg .= $this->_parse_link( $json ); $visible_err = self::API_VER !== $service && self::API_NEWS !== $service && self::SVC_D_DASH !== $service; if ( $visible_err ) { Admin_Display::error( $msg ); } // QC may try auto alias // Store the domain as `err_domains` only for QC auto alias feature if ( 'err_alias' === $json_msg ) { if ( empty( $this->_summary['err_domains'] ) ) { $this->_summary['err_domains'] = []; } $site_url = site_url(); if ( ! array_key_exists( $site_url, $this->_summary['err_domains'] ) ) { $this->_summary['err_domains'][ $site_url ] = time(); } self::save_summary(); } // Site not on QC, reset QC connection registration if ( 'site_not_registered' === $json_msg || 'err_key' === $json_msg ) { $this->_reset_qc_reg(); } return [ $json, true ]; } unset( $json['_res'] ); if ( ! empty( $json['_msg'] ) ) { unset( $json['_msg'] ); } return [ $json, false ]; } /** * Parse _links from json * * @since 1.6.5 * @since 1.6.7 Self clean the parameter * @access private * * @param array $json JSON array (passed by reference). * @return string HTML link string. */ private function _parse_link( &$json ) { $msg = ''; if ( ! empty( $json['_links'] ) ) { foreach ( $json['_links'] as $v ) { $msg .= ' ' . sprintf( '<a href="%s" class="%s" target="_blank">%s</a>', esc_url( $v['link'] ), ! empty( $v['cls'] ) ? esc_attr( $v['cls'] ) : '', esc_html( $v['title'] ) ); } unset( $json['_links'] ); } return $msg; } }
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