[a-z0-9][a-z0-9\-]{1,63}\.[a-z\.]{2,6})$/i', $domain, $regs ) ) { return $regs['domain']; } return false; } /** * If an array provided, the function will check all * array items to see if all of them are valid URLs. * * @param array $url_list list of URLs to check. * @param bool $include_dns_check To include real DNS check and/or IP check or not. * * @return bool * @since 1.1.0 */ function breeze_validate_urls( array $url_list = array(), bool $include_dns_check = false ): bool { if ( ! is_array( $url_list ) ) { return false; } $is_valid = false; foreach ( $url_list as $url ) { $url = trim( $url ); if ( empty( $url ) ) { continue; } if ( false === strpos( $url, ':' ) ) { $url = 'https://' . $url; } $parsed_url = wp_parse_url( $url ); if ( false === $parsed_url ) { return false; } // Encode the path to make it a valid URL. $encoded_path = ''; if ( isset( $parsed_url['path'] ) ) { $encoded_path = implode( '/', array_map( 'rawurlencode', explode( '/', $parsed_url['path'] ) ) ); } // Reconstruct the URL with the encoded path. $encoded_url = ( isset( $parsed_url['scheme'] ) ? $parsed_url['scheme'] . '://' : '' ) . ( $parsed_url['host'] ?? '' ) . $encoded_path; $encoded_url .= ( isset( $parsed_url['query'] ) ? '?' . $parsed_url['query'] : '' ); $encoded_url .= ( isset( $parsed_url['fragment'] ) ? '#' . $parsed_url['fragment'] : '' ); $base_domain = breeze_get_base_domain( $parsed_url['host'] ?? '' ); if ( empty( $base_domain ) ) { return false; } if ( true === $include_dns_check ) { if ( ! checkdnsrr( $base_domain, 'ANY' ) ) { $ip = gethostbyname( $parsed_url['host'] ); if ( $ip === $parsed_url['host'] ) { return false; } } } if ( ! filter_var( $encoded_url, FILTER_VALIDATE_URL ) ) { if ( false === $is_valid ) { $is_valid = breeze_validate_url_via_regexp( $url ); } if ( false === $is_valid ) { $is_valid = breeze_string_contains_exclude_regexp( $url ); } } else { $is_valid = true; } if ( false === $is_valid ) { break; } } return $is_valid; } function breeze_validate_the_right_extension( $url_list = array(), $extension = 'css' ) { if ( ! is_array( $url_list ) ) { return false; } $is_valid = true; foreach ( $url_list as $url ) { $is_regexp = breeze_string_contains_exclude_regexp( $url ); if ( false === $is_regexp ) { $is_valid = breeze_validate_exclude_field_by_extension( $url, $extension ); } else { $file_extension = breeze_get_file_extension_from_url( $url ); if ( false !== $file_extension && strtolower( $extension ) !== $file_extension ) { $is_valid = false; } } if ( false === $is_valid ) { break; } } return $is_valid; } /** * Returns the extension for given file from url. * * @param string $url_given * * @return bool */ function breeze_get_file_extension_from_url( $url_given = '' ) { if ( empty( $url_given ) ) { return false; } $file_path = wp_parse_url( $url_given, PHP_URL_PATH ); if ( ! empty( $file_path ) ) { $file_name = wp_basename( $file_path ); if ( ! empty( $file_name ) ) { $bits = explode( '.', $file_name ); if ( ! empty( $bits ) ) { $extension_id = count( $bits ) - 1; $extension = strtolower( $bits[ $extension_id ] ); $extension = preg_replace( '/\s+/', ' ', $extension ); if ( '*)' === $extension ) { // Exception when (.*) is the last statement instead of ending with an extension return false; } return $extension; } } } return false; } /** * Will search for given string in array values * if found, will result in an array with all entries found * if not found, an empty array will be resulted. * * @param string $needle * @param array $haystack * * @return array * @since 1.1.0 */ function breeze_is_string_in_array_values( $needle = '', $haystack = array() ) { if ( empty( $needle ) || empty( $haystack ) ) { return array(); } $needle = trim( $needle ); $is_string_in_array = array_filter( $haystack, function ( $var ) use ( $needle ) { // return false; if ( breeze_string_contains_exclude_regexp( $var ) ) { return breeze_file_match_pattern( $needle, $var ); } else { return strpos( $var, $needle ) !== false; } } ); return $is_string_in_array; } /** * Used to check for regexp exclude pages * * @param string $needle * @param array $haystack * * @return array * @since 1.1.7 */ function breeze_check_for_exclude_values( $needle = '', $haystack = array() ) { if ( empty( $needle ) || empty( $haystack ) ) { return array(); } $needle = trim( $needle ); $is_string_in_array = array_filter( $haystack, function ( $var ) use ( $needle ) { if ( breeze_string_contains_exclude_regexp( $var ) ) { return breeze_file_match_pattern( $needle, $var ); } else { return false; } } ); return $is_string_in_array; } /** * Will return true for Google fonts and other type of CDN link * that are missing the Scheme from the url * * @param string $url_to_be_checked * * @return bool */ function breeze_validate_url_via_regexp( $url_to_be_checked = '' ) { if ( empty( $url_to_be_checked ) ) { return false; } $regex = '((http:|https:?)?\/\/)?([a-z0-9+!*(),;?&=.-]+(:[a-z0-9+!*(),;?&=.-]+)?@)?([a-z0-9\-\.]*)\.(([a-z]{2,6})|([0-9]{1,3}\.([0-9]{1,3})\.([0-9]{1,3})))(:[0-9]{2,5})?(\/([a-z0-9+%-]\.?)+)*\/?(\?[a-z+&$_.-][a-z0-9;:@&%=+/.-/,/:]*)?(#[a-z_.-][a-z0-9+$%_.-]*)?'; preg_match( "~^$regex$~i", $url_to_be_checked, $matches_found ); if ( empty( $matches_found ) ) { return false; } return true; } /** * Used in Breeze settings to validate if the URL corresponds to the * added input/textarea * Exclude CSS must contain only .css files * Exclude JS must contain only .js files * * @param $file_url * @param string $validate * * @return bool */ function breeze_validate_exclude_field_by_extension( $file_url, $validate = 'css' ) { if ( empty( $file_url ) ) { return true; } if ( empty( $validate ) ) { return false; } $valid = true; $file_path = wp_parse_url( $file_url, PHP_URL_PATH ); $preg_match = preg_match( '#\.' . $validate . '$#', $file_path ); if ( empty( $preg_match ) ) { $valid = false; } return $valid; } /** * Function used to determine if the excluded URL contains regexp * * @param $file_url * @param string $validate * * @return bool */ function breeze_string_contains_exclude_regexp( $file_url, $validate = '(.*)' ) { if ( empty( $file_url ) ) { return false; } if ( empty( $validate ) ) { return false; } $valid = false; if ( substr_count( $file_url, $validate ) !== 0 ) { $valid = true; // 0 or false } return $valid; } /** * Method will prepare the URLs escaped for preg_match * Will return the file_url matches the pattern. * empty array for false, * aray with data for true. * * @param $file_url * @param $pattern * * @return false|int */ function breeze_file_match_pattern( $file_url, $pattern ) { $remove_pattern = str_replace( '(.*)', 'REG_EXP_ALL', $pattern ); $prepared_pattern = preg_quote( $remove_pattern, '/' ); $pattern = str_replace( 'REG_EXP_ALL', '(.*)', $prepared_pattern ); $result = preg_match( '/' . $pattern . '/', $file_url ); return $result; } /** * Will return true/false if the cache headers exist. * * @return bool */ function is_varnish_cache_started() { if ( isset( $_SERVER['HTTP_X_VARNISH'] ) && is_numeric( $_SERVER['HTTP_X_VARNISH'] ) ) { return true; } // Return false early if varnish is disabled by the user. if ( isset( $data['HTTP_X_APPLICATION'] ) && ( 'varnishpass' === trim( $data['HTTP_X_APPLICATION'] ) || 'bypass' === trim( $data['HTTP_X_APPLICATION'] ) ) ) { return false; } $check_local_server = is_varnish_layer_started(); if ( true === $check_local_server ) { return true; } $custom_varnish_active = get_transient( 'breeze_custom_varnish_server_active' ); if ( false === $custom_varnish_active ) { $custom_varnish_active = (int) breeze_check_custom_varnish(); set_transient( 'breeze_custom_varnish_server_active', $custom_varnish_active, 24 * HOUR_IN_SECONDS ); } return (bool) $custom_varnish_active; } /** * Checks if the varnish is active on website." * x-cache header is checked to verify varnish presence. * * @return bool */ function breeze_check_custom_varnish() { $unique_string = time(); $url_ping = trim( home_url() . '?breeze_check_cache_available=' . $unique_string ); $headers = wp_get_http_headers( $url_ping ); if ( empty( $headers ) ) { return false; } $headers = array_change_key_case( $headers->getAll(), CASE_LOWER ); if ( isset( $headers['x-cache'] ) ) { return true; } return false; } /** * Determine if the Varnish server is up and running. * * CloudWays: * At server root level Varnish being disabled. * HTTP_X_VARNISH - does not exist or is NULL * HTTP_X_APPLICATION - contains varnishpass * * At Application level ( WP install ) - Varnish ON * At server level is ON * HTTP_X_VARNISH - has random numerical value * HTTP_X_APPLICATION - contains value different from varnishpass, usually application name. * * At Application level ( WP install ) - Varnish OFF * At server level is ON * HTTP_X_VARNISH - has random numerical value * HTTP_X_APPLICATION - contains value varnishpass * * @since 1.1.3 */ function is_varnish_layer_started() { $data = $_SERVER; if ( ! isset( $data['HTTP_X_VARNISH'] ) ) { return false; } if ( isset( $data['HTTP_X_VARNISH'] ) && isset( $data['HTTP_X_APPLICATION'] ) ) { if ( 'varnishpass' === trim( $data['HTTP_X_APPLICATION'] ) ) { return false; } elseif ( 'bypass' === trim( $data['HTTP_X_APPLICATION'] ) ) { return false; } elseif ( is_null( $data['HTTP_X_APPLICATION'] ) ) { return false; } } if ( ! isset( $data['HTTP_X_APPLICATION'] ) ) { return false; } return true; } /** * Handles file writing. * Using fopen() si a lot faster than file_put_contents(). * * @param string $file_path * @param string $content * * @return bool * @since 1.1.3 */ function breeze_read_write_file( $file_path = '', $content = '' ) { if ( empty( $file_path ) ) { return false; } $wp_filesystem = breeze_get_filesystem(); return $wp_filesystem->put_contents( $file_path, $content ); } function breeze_lock_cache_process( $path = '' ) { $filename = 'process.lock'; $create_lock = fopen( $path . $filename, 'w' ); if ( false === $create_lock ) { return false; } fclose( $create_lock ); return true; } function breeze_is_process_locked( $path = '' ) { $filename = 'process.lock'; if ( file_exists( $path . $filename ) ) { return true; } return false; } function breeze_unlock_process( $path = '' ) { $filename = 'process.lock'; if ( file_exists( $path . $filename ) ) { @unlink( $path . $filename ); return true; } return false; } function multisite_blog_id_config() { global $blog_id; $blog_id_requested = isset( $GLOBALS['breeze_config']['blog_id'] ) ? $GLOBALS['breeze_config']['blog_id'] : 0; if ( ! empty( $blog_id_requested ) ) { return $blog_id_requested; } if ( ! empty( $blog_id ) ) { } } /** * Purges the cache for a given URL. * Varnish cache and local cache. * * @param string $url The url for which to purge the cache. * @param false $purge_varnish If the check was already done for Varnish server On/OFF set to true. * @param bool $check_varnish If the check for Varnish was not done, set to true to check Varnish server status inside the function. * * @since 1.1.10 */ function breeze_varnish_purge_cache( $url = '', $purge_varnish = false, $check_varnish = true ) { $wp_filesystem = breeze_get_filesystem(); // Clear the local cache using the product URL. if ( ! empty( $url ) && $wp_filesystem->exists( breeze_get_cache_base_path() . hash( 'sha512', $url ) ) ) { $wp_filesystem->rmdir( breeze_get_cache_base_path() . hash( 'sha512', $url ), true ); } if ( false === $purge_varnish && true === $check_varnish ) { // Checks if the Varnish server is ON. $do_varnish_purge = is_varnish_cache_started(); if ( false === $do_varnish_purge ) { return; } } if ( false === $purge_varnish && false === $check_varnish ) { return; } $parse_url = parse_url( $url ); $pregex = ''; // Default method is URLPURGE to purge only one object, this method is specific to cloudways configuration $purge_method = 'URLPURGE'; // Use PURGE method when purging all site if ( isset( $parse_url['query'] ) && ( 'breeze' === strtolower( $parse_url['query'] ) ) ) { // The regex is not needed as cloudways configuration purge all the cache of the domain when a PURGE is done $pregex = '.*'; $purge_method = 'PURGE'; } // Determine the path $url_path = ''; if ( isset( $parse_url['path'] ) ) { $url_path = $parse_url['path']; } // Determine the schema $schema = 'http://'; if ( isset( $parse_url['scheme'] ) ) { $schema = $parse_url['scheme'] . '://'; } // Determine the host $host = $parse_url['host']; $varnish_ip = Breeze_Options_Reader::get_option_value( 'breeze-varnish-server-ip' ); $varnish_host = isset( $varnish_ip ) ? $varnish_ip : '127.0.0.1'; $purgeme = $varnish_host . $url_path . $pregex; if ( ! empty( $parse_url['query'] ) && 'breeze' !== strtolower( $parse_url['query'] ) ) { $purgeme .= '?' . $parse_url['query']; } $ssl_verification = apply_filters( 'breeze_ssl_check_certificate', true ); if ( ! is_bool( $ssl_verification ) ) { $ssl_verification = true; } if ( defined( 'WP_DEBUG' ) && true === WP_DEBUG ) { $ssl_verification = false; } $request_args = array( 'method' => $purge_method, 'headers' => array( 'Host' => $host, 'User-Agent' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36', ), 'sslverify' => $ssl_verification, ); $response = wp_remote_request( $schema . $purgeme, $request_args ); if ( is_wp_error( $response ) || 200 !== (int) $response['response']['code'] ) { if ( 'https://' === $schema ) { $schema = 'http://'; } else { $schema = 'https://'; } wp_remote_request( $schema . $purgeme, $request_args ); } } /** * Will ignore the files added into $minified_already array so that these files will not be minified twice. * * @param string $script_path local script path. * * @return bool * @since 1.1.9 */ function breeze_libraries_already_minified( $script_path = '' ) { if ( empty( $script_path ) ) { return false; } $minified_already = array( 'woocommerce-bookings/dist/frontend.js', ); $library = explode( '/plugins/', $script_path ); if ( empty( $library ) || ! isset( $library[1] ) ) { return false; } $library_path = $library[1]; if ( in_array( $library_path, $minified_already ) ) { return true; } return false; } add_filter( 'breeze_js_ignore_minify', 'breeze_libraries_already_minified' ); /** * The Page is AMP so don't minifiy stuff. * * @return bool * @since 1.2.3 */ function breeze_is_amp_page() { if ( function_exists( 'amp_is_request' ) && amp_is_request() ) { return true; } return false; } function breeze_rtrim_urls( $url ) { if ( empty( $url ) ) { $url = ''; } return rtrim( $url, '/' ); } /** * Check the CDN url to see if it's safe to use. * * @param $cdn_url * * @return false|string * @since 2.0.11 */ function breeze_static_check_cdn_url( $cdn_url ) { if ( empty( trim( $cdn_url ) ) ) { return false; } $breeze_user_agent = 'breeze-cdn-check-help-user'; $verify_host = 2; $ssl_verification = apply_filters( 'breeze_ssl_check_certificate', true ); if ( ! is_bool( $ssl_verification ) ) { $ssl_verification = true; } if ( defined( 'WP_DEBUG' ) && true === WP_DEBUG ) { $ssl_verification = false; $verify_host = 0; } $cdn_url = ltrim( $cdn_url, 'https:' ); $cdn_url = 'https:' . $cdn_url; if ( false === filter_var( $cdn_url, FILTER_VALIDATE_URL ) ) { return false; } $connection = curl_init( 'https://sitecheck.sucuri.net/api/v3/?scan=' . $cdn_url ); curl_setopt( $connection, CURLOPT_RETURNTRANSFER, true ); curl_setopt( $connection, CURLOPT_SSL_VERIFYHOST, $verify_host ); curl_setopt( $connection, CURLOPT_SSL_VERIFYPEER, $ssl_verification ); curl_setopt( $connection, CURLOPT_USERAGENT, $breeze_user_agent ); curl_setopt( $connection, CURLOPT_REFERER, home_url() ); /** * Accept up to 3 maximum redirects before cutting the connection. */ curl_setopt( $connection, CURLOPT_MAXREDIRS, 3 ); curl_setopt( $connection, CURLOPT_FOLLOWLOCATION, true ); $the_json = curl_exec( $connection ); curl_close( $connection ); $is_json = json_decode( $the_json, true ); if ( $is_json === null && json_last_error() !== JSON_ERROR_NONE ) { // incorrect data show error message $is_safe = false; } else { // decoded with success $is_safe = false; if ( isset( $is_json['warnings'], $is_json['warnings']['security'], $is_json['warnings']['security']['malware'] ) ) { $is_safe = 'warning'; } } return $is_safe; } /** * Fetch homepage headers by cURL ping no cache. * * @param int $retry How many retries. * @param int $time_fresh If you want to use a custom number instead of time. * @param boolean $use_headers whether to use the function stream_context_set_default * * @return bool|array */ function breeze_helper_fetch_headers( int $time_fresh = 0 ) { // Code specific for Cloudways Server. // use time to get un-cached version. if ( empty( $time_fresh ) ) { $time_fresh = time(); } $url_ping = trim( trailingslashit( home_url() ) . '?no-cache=' . $time_fresh ); $url_ping = str_replace( 'http://', 'https://', $url_ping ); $request = wp_remote_head( $url_ping ); // Check for success. if ( is_wp_error( $request ) || ! isset( $request['headers'] ) || ! ( 200 === $request['response']['code'] || 201 === $request['response']['code'] ) ) { return; } $headers = iterator_to_array( $request['headers'] ); return $headers; } /** * Helper function to get the WordPress Filesystem object. * Initializes the filesystem if it's not already set up. * * @return WP_Filesystem_Base The WordPress filesystem object. */ function breeze_get_filesystem(): WP_Filesystem_Base { global $wp_filesystem; if ( empty( $wp_filesystem ) ) { require_once ABSPATH . '/wp-admin/includes/file.php'; WP_Filesystem(); } return $wp_filesystem; }