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/** * Enterprise FiboSearch Micro-Cache Layer * Engineered for extreme high-performance caching of AJAX search queries. * Architecture: Early Request Interception & Output Buffering Validation. */ if ( ! class_exists( 'Enterprise_FiboSearch_MicroCache' ) ) { class Enterprise_FiboSearch_MicroCache { // Cache Configuration private $cache_prefix = 'fibo_ultra_'; private $cache_ttl = 43200; // Cache expiration set to 12 hours (in seconds) public function __construct() { // Intercept the request at the earliest possible execution point in WordPress add_action( 'init', [ $this, 'intercept_search_request' ], 1 ); // Reduce FiboSearch JavaScript Debounce time for instantaneous typing response add_filter( 'dgwt/wcas/scripts/localize_data', [ $this, 'accelerate_frontend_debounce' ] ); } /** * Intercepts the HTTP request before FiboSearch processes the database query */ public function intercept_search_request() { // Validate if the current request is a FiboSearch AJAX request $is_fibo_request = ( isset( $_GET['dgwt_wcas'] ) && isset( $_GET['s'] ) ); $is_wc_ajax = ( isset( $_GET['wc-ajax'] ) && $_GET['wc-ajax'] === 'dgwt_wcas_ajax_search' ); if ( ! $is_fibo_request && ! $is_wc_ajax ) { return; // Exit silently if it's a regular page load } // Sanitize and validate the search string $search_term = isset( $_GET['s'] ) ? sanitize_text_field( wp_unslash( $_GET['s'] ) ) : ''; if ( empty( $search_term ) || mb_strlen( $search_term, 'UTF-8' ) < 2 ) { return; // Do not cache single-character searches } // Generate a unique cryptographic hash for the cache key $cache_key = $this->cache_prefix . md5( mb_strtolower( $search_term, 'UTF-8' ) ); $cached_data = get_transient( $cache_key ); if ( $cached_data !== false ) { // CACHE HIT: Serve directly from RAM/Redis/Memcached and kill process header( 'Content-Type: application/json; charset=utf-8' ); header( 'X-Enterprise-Cache: HIT' ); echo $cached_data; exit; // Absolute termination for zero CPU overhead } // CACHE MISS: Start Output Buffering to capture FiboSearch's final JSON response ob_start( [ $this, 'capture_and_cache_response' ] ); } /** * Callback function for Output Buffering. Validates and stores the JSON payload. */ public function capture_and_cache_response( $buffer ) { // Strict validation: Ensure the buffer contains valid FiboSearch JSON payload if ( ! empty( $buffer ) && strpos( $buffer, '{"suggestions":' ) !== false ) { $search_term = isset( $_GET['s'] ) ? sanitize_text_field( wp_unslash( $_GET['s'] ) ) : ''; $cache_key = $this->cache_prefix . md5( mb_strtolower( $search_term, 'UTF-8' ) ); // Store the payload in WordPress Transients (Compatible with Redis/Object Cache) set_transient( $cache_key, $buffer, $this->cache_ttl ); header( 'X-Enterprise-Cache: MISS-STORED' ); } return $buffer; // Release the buffer to the browser } /** * Overrides the default FiboSearch JS settings to reduce perceived latency */ public function accelerate_frontend_debounce( $data ) { // Default is usually 500ms. Reducing it to 150ms makes the UI feel instantly responsive. $data['delay'] = 150; return $data; } } // Initialize the enterprise cache layer new Enterprise_FiboSearch_MicroCache(); }آویز اپل واچ