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<?php |
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/** |
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* BerqWP Advanced Cache Drop-in |
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*/ |
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|
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if (!defined('ABSPATH')) exit; |
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|
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require_once ABSPATH . '/wp-content/plugins/searchpro/inc/class-ignoreparams.php'; |
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require_once ABSPATH . '/wp-content/plugins/searchpro/inc/dropin-functions.php'; |
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|
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if ($_SERVER['REQUEST_METHOD'] !== 'POST' && !bwp_is_user_logged_in() && !bwp_is_ajax()) { |
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$slug = $_SERVER['REQUEST_URI']; |
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$slug = dropin_remove_ignore_params($slug); |
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$cache_key = md5($slug); |
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$cache_directory = ABSPATH . '/wp-content/cache/berqwp/html/'; |
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$cache_file = $cache_directory . $cache_key . '.html'; |
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$gzip_support = function_exists('gzencode') && isset($_SERVER['HTTP_ACCEPT_ENCODING']) && strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== false; |
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$cache_max_life = @filemtime($cache_file) + (18 * 60 * 60); |
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$is_litespeed = isset($_SERVER['SERVER_SOFTWARE']) && strpos($_SERVER['SERVER_SOFTWARE'], 'LiteSpeed') !== false; |
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|
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if (file_exists($cache_file) && $cache_max_life > time()) { |
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if ($gzip_support && file_exists($cache_directory . $cache_key . '.gz') && !$is_litespeed) { |
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$cache_file = $cache_directory . $cache_key . '.gz'; |
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header('Content-Encoding: gzip'); |
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header('Content-Type: text/html; charset=UTF-8'); |
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} |
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|
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|
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if (!isset($_GET['creating_cache']) && file_exists($cache_file)) { |
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$lastModified = filemtime($cache_file); |
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$etag = md5_file($cache_file); |
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header('ETag: ' . $etag); |
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header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $lastModified) . ' GMT'); |
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|
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// Check if the client has a cached copy and if it's still valid using Last-Modified |
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if ((isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= $lastModified) || (isset($_SERVER['HTTP_IF_NONE_MATCH']) && $_SERVER['HTTP_IF_NONE_MATCH'] === $etag)) { |
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// The client's cache is still valid based on Last-Modified, respond with a 304 Not Modified |
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header('HTTP/1.1 304 Not Modified'); |
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header('Expires: ' . gmdate('D, d M Y H:i:s') . ' GMT'); |
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header('Cache-Control: no-cache, must-revalidate'); |
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exit(); |
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|
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} |
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|
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header('Cache-Control: public, max-age=86400'); |
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|
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if (file_exists($cache_file)) { |
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readfile($cache_file); |
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exit(); |
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} |
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} |
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|
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} |
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|
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} |
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|
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// add_action('wp', function () { |
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// if (class_exists('berqCache') && !is_admin()) { |
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// global $berqwp_is_dropin; |
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// $berqwp_is_dropin = true; |
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// $berqCache = new berqCache(); |
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// $berqCache->html_cache(); |
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// } |
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// }); |
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|
