­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ http_codes` table * * @return void */ private function set_codes() { $this->http_codes = array( 100 => __('Continue', 'wp-optimize'), 101 => __('Switching Protocols', 'wp-optimize'), 102 => __('Processing (WebDAV; RFC 2518)', 'wp-optimize'), 103 => __('Early Hints (RFC 8297)', 'wp-optimize'), 200 => __('OK', 'wp-optimize'), 201 => __('Created', 'wp-optimize'), 202 => __('Accepted', 'wp-optimize'), 203 => __('Non-Authoritative Information (since HTTP/1.1)', 'wp-optimize'), 204 => __('No Content', 'wp-optimize'), 205 => __('Reset Content', 'wp-optimize'), 206 => __('Partial Content', 'wp-optimize'), 207 => __('Multi-Status (WebDAV; RFC 4918)', 'wp-optimize'), 208 => __('Already Reported (WebDAV; RFC 5842)', 'wp-optimize'), 226 => __('IM Used (RFC 3229)', 'wp-optimize'), 300 => __('Multiple Choices', 'wp-optimize'), 301 => __('Moved Permanently', 'wp-optimize'), 302 => __('Found (Previously "Moved temporarily")', 'wp-optimize'), 303 => __('See Other (since HTTP/1.1)', 'wp-optimize'), 304 => __('Not Modified', 'wp-optimize'), 305 => __('Use Proxy (since HTTP/1.1)', 'wp-optimize'), 306 => __('Switch Proxy', 'wp-optimize'), 307 => __('Temporary Redirect (since HTTP/1.1)', 'wp-optimize'), 308 => __('Permanent Redirect', 'wp-optimize'), 400 => __('Bad Request', 'wp-optimize'), 401 => __('Unauthorized', 'wp-optimize'), 402 => __('Payment Required', 'wp-optimize'), 403 => __('Forbidden', 'wp-optimize'), 404 => __('Not Found', 'wp-optimize'), 405 => __('Method Not Allowed', 'wp-optimize'), 406 => __('Not Acceptable', 'wp-optimize'), 407 => __('Proxy Authentication Required', 'wp-optimize'), 408 => __('Request Timeout', 'wp-optimize'), 409 => __('Conflict', 'wp-optimize'), 410 => __('Gone', 'wp-optimize'), 411 => __('Length Required', 'wp-optimize'), 412 => __('Precondition Failed', 'wp-optimize'), 413 => __('Payload Too Large', 'wp-optimize'), 414 => __('URI Too Long', 'wp-optimize'), 415 => __('Unsupported Media Type', 'wp-optimize'), 416 => __('Range Not Satisfiable', 'wp-optimize'), 417 => __('Expectation Failed', 'wp-optimize'), 418 => __('I\'m a teapot (RFC 2324, RFC 7168)', 'wp-optimize'), 421 => __('Misdirected Request', 'wp-optimize'), 422 => __('Unprocessable Entity', 'wp-optimize'), 423 => __('Locked (WebDAV; RFC 4918)', 'wp-optimize'), 424 => __('Failed Dependency (WebDAV; RFC 4918)', 'wp-optimize'), 425 => __('Too Early (RFC 8470)', 'wp-optimize'), 426 => __('Upgrade Required', 'wp-optimize'), 428 => __('Precondition Required (RFC 6585)', 'wp-optimize'), 429 => __('Too Many Requests (RFC 6585)', 'wp-optimize'), 431 => __('Request Header Fields Too Large (RFC 6585)', 'wp-optimize'), 451 => __('Unavailable For Legal Reasons (RFC 7725)', 'wp-optimize'), 500 => __('Internal Server Error', 'wp-optimize'), 501 => __('Not Implemented', 'wp-optimize'), 502 => __('Bad Gateway', 'wp-optimize'), 503 => __('Service Unavailable', 'wp-optimize'), 504 => __('Gateway Timeout', 'wp-optimize'), 505 => __('HTTP Version Not Supported', 'wp-optimize'), 506 => __('Variant Also Negotiates (RFC 2295)', 'wp-optimize'), 507 => __('Insufficient Storage (WebDAV; RFC 4918)', 'wp-optimize'), 508 => __('Loop Detected (WebDAV; RFC 5842)', 'wp-optimize'), 510 => __('Not Extended (RFC 2774)', 'wp-optimize'), 511 => __('Network Authentication Required (RFC 6585)', 'wp-optimize'), 218 => __('This is fine (Apache HTTP Server)', 'wp-optimize'), 419 => __('Page Expired (Laravel Framework)', 'wp-optimize'), 420 => __('Method Failure (Spring Framework)', 'wp-optimize'), 430 => __('Request Header Fields Too Large (Shopify)', 'wp-optimize'), 450 => __('Blocked by Windows Parental Controls (Microsoft)', 'wp-optimize'), 498 => __('Invalid Token (Esri)', 'wp-optimize'), 509 => __('Bandwidth Limit Exceeded (Apache Web Server/cPanel)', 'wp-optimize'), 529 => __('Site is overloaded', 'wp-optimize'), 530 => __('Site is frozen', 'wp-optimize'), 598 => __('(Informal convention) Network read timeout error', 'wp-optimize'), 599 => __('Network Connect Timeout Error', 'wp-optimize'), 440 => __('IIS - Login Time-out', 'wp-optimize'), 449 => __('IIS - Retry With', 'wp-optimize'), 444 => __('Nginx - No Response', 'wp-optimize'), 494 => __('Nginx - Request header too large', 'wp-optimize'), 495 => __('Nginx - SSL Certificate Error', 'wp-optimize'), 496 => __('Nginx - SSL Certificate Required', 'wp-optimize'), 497 => __('Nginx - HTTP Request Sent to HTTPS Port', 'wp-optimize'), 499 => __('Nginx - Client Closed Request', 'wp-optimize'), 520 => __('Cloudflare - Web Server Returned an Unknown Error', 'wp-optimize'), 521 => __('Cloudflare - Web Server Is Down', 'wp-optimize'), 522 => __('Cloudflare - Connection Timed Out', 'wp-optimize'), 523 => __('Cloudflare - Origin Is Unreachable', 'wp-optimize'), 524 => __('Cloudflare - A Timeout Occurred', 'wp-optimize'), 525 => __('Cloudflare - SSL Handshake Failed', 'wp-optimize'), 526 => __('Cloudflare - Invalid SSL Certificate', 'wp-optimize'), 527 => __('Cloudflare - Railgun Error', 'wp-optimize'), 460 => __('AWS Load Balancer - Connection Closed', 'wp-optimize'), 463 => __('AWS Load Balancer - Too Many Redirects', 'wp-optimize'), 464 => __('AWS Load Balancer - Incompatible Protocols', 'wp-optimize'), 561 => __('AWS Load Balancer - Unauthorized', 'wp-optimize'), ); } /** * Get the current theme's style.css headers * * @return array|WP_Error */ protected function get_stylesheet_headers() { static $headers; if (isset($headers)) return $headers; $style = get_template_directory_uri() . '/style.css'; /** * Filters wp_remote_get parameters, when checking if browser cache is enabled. * * @param array $request_params Default parameters */ $request_params = apply_filters('wpoptimize_get_stylesheet_headers_args', array('timeout' => 10)); // trying to load style.css. $response = wp_remote_get($style, $request_params); if (is_wp_error($response)) return $response; $response_code = wp_remote_retrieve_response_code($response); if (200 != $response_code) { $link = sprintf('%s', $style, $style); if (401 == $response_code) { $error = '' . esc_html__('401 Unauthorized', 'wp-optimize') . ''; $error_string = sprintf(esc_html__('The server responded with a %s error.', 'wp-optimize'), $error) . ' ' . esc_html__('This usually happens when the site requires authentication to access it.', 'wp-optimize') . ' ' . sprintf(esc_html__('Please temporarily disable authentication for the following URL: %s and retry.', 'wp-optimize'), $link); } elseif (404 == $response_code) { $error = '' . esc_html__('404 File Not Found', 'wp-optimize') . ''; $error_string = sprintf(esc_html__('The server responded with a %s error', 'wp-optimize'), $error) . ' ' . sprintf(esc_html__('Please temporarily restore the file under URL: %s, or just create an empty file and try again.', 'wp-optimize'), $link); } else { $error = '' . $response_code . ' ' . $this->get_http_code_label($response_code) . ''; $error_string = sprintf(esc_html__('The server responded with a %s error whilst trying to open the URL: %s.', 'wp-optimize'), $error, $link) . ' ' . esc_html__('Please contact your website administrator to resolve this.', 'wp-optimize') . ' ' . esc_html__('Once the issue is addressed, try again.', 'wp-optimize'); } return new WP_Error('unauthorized', $error_string); } $headers = wp_remote_retrieve_headers($response); if (is_object($headers) && method_exists($headers, 'getAll')) { $headers = $headers->getAll(); } return is_array($headers) ? $headers : array(); } /** * Return label for HTTP code * * @param int $code The HTTP code * @return string */ private function get_http_code_label($code) { if (!isset($this->http_codes)) { $this->set_codes(); } return $code . " " . !empty($this->http_codes[$code]) ? $this->http_codes[$code] : esc_html__("HTTP Code", "wp-optimize"); } } endif;