$theme, $create_post = false, $post_status_filter = array( 'publish' ) ) { if ( ! $theme instanceof WP_Theme ) { $theme = wp_get_theme(); } /* * Bail early if the theme does not support a theme.json. * * Since wp_theme_has_theme_json() only supports the active * theme, the extra condition for whether $theme is the active theme is * present here. */ if ( $theme->get_stylesheet() === get_stylesheet() && ! wp_theme_has_theme_json() ) { return array(); } $user_cpt = array(); $post_type_filter = 'wp_global_styles'; $stylesheet = $theme->get_stylesheet(); $args = array( 'posts_per_page' => 1, 'orderby' => 'date', 'order' => 'desc', 'post_type' => $post_type_filter, 'post_status' => $post_status_filter, 'ignore_sticky_posts' => true, 'no_found_rows' => true, 'update_post_meta_cache' => false, 'update_post_term_cache' => false, 'tax_query' => array( array( 'taxonomy' => 'wp_theme', 'field' => 'name', 'terms' => $stylesheet, ), ), ); $global_style_query = new WP_Query(); $recent_posts = $global_style_query->query( $args ); if ( count( $recent_posts ) === 1 ) { $user_cpt = get_object_vars( $recent_posts[0] ); } elseif ( $create_post ) { $cpt_post_id = wp_insert_post( array( 'post_content' => '{"version": ' . WP_Theme_JSON::LATEST_SCHEMA . ', "isGlobalStylesUserThemeJSON": true }', 'post_status' => 'publish', 'post_title' => 'Custom Styles', // Do not make string translatable, see https://core.trac.wordpress.org/ticket/54518. 'post_type' => $post_type_filter, 'post_name' => sprintf( 'wp-global-styles-%s', urlencode( $stylesheet ) ), 'tax_input' => array( 'wp_theme' => array( $stylesheet ), ), ), true ); if ( ! is_wp_error( $cpt_post_id ) ) { $user_cpt = get_object_vars( get_post( $cpt_post_id ) ); } } return $user_cpt; } /** * Returns the user's origin config. * * @since 5.9.0 * @since 6.6.0 The 'isGlobalStylesUserThemeJSON' flag is left on the user data. * Register the block style variations coming from the user data. * * @return WP_Theme_JSON Entity that holds styles for user data. */ public static function get_user_data() { if ( null !== static::$user && static::has_same_registered_blocks( 'user' ) ) { return static::$user; } $config = array(); $user_cpt = static::get_user_data_from_wp_global_styles( wp_get_theme() ); if ( array_key_exists( 'post_content', $user_cpt ) ) { $decoded_data = json_decode( $user_cpt['post_content'], true ); $json_decoding_error = json_last_error(); if ( JSON_ERROR_NONE !== $json_decoding_error ) { wp_trigger_error( __METHOD__, 'Error when decoding a theme.json schema for user data. ' . json_last_error_msg() ); /** * Filters the data provided by the user for global styles & settings. * * @since 6.1.0 * * @param WP_Theme_JSON_Data $theme_json Class to access and update the underlying data. */ $theme_json = apply_filters( 'wp_theme_json_data_user', new WP_Theme_JSON_Data( $config, 'custom' ) ); /* * Backward compatibility for extenders returning a WP_Theme_JSON_Data * compatible class that is not a WP_Theme_JSON_Data object. */ if ( $theme_json instanceof WP_Theme_JSON_Data ) { return $theme_json->get_theme_json(); } else { $config = $theme_json->get_data(); return new WP_Theme_JSON( $config, 'custom' ); } } /* * Very important to verify that the flag isGlobalStylesUserThemeJSON is true. * If it's not true then the content was not escaped and is not safe. */ if ( is_array( $decoded_data ) && isset( $decoded_data['isGlobalStylesUserThemeJSON'] ) && $decoded_data['isGlobalStylesUserThemeJSON'] ) { unset( $decoded_data['isGlobalStylesUserThemeJSON'] ); $config = $decoded_data; } } /** This filter is documented in wp-includes/class-wp-theme-json-resolver.php */ $theme_json = apply_filters( 'wp_theme_json_data_user', new WP_Theme_JSON_Data( $config, 'custom' ) ); /* * Backward compatibility for extenders returning a WP_Theme_JSON_Data * compatible class that is not a WP_Theme_JSON_Data object. */ if ( $theme_json instanceof WP_Theme_JSON_Data ) { static::$user = $theme_json->get_theme_json(); } else { $config = $theme_json->get_data(); static::$user = new WP_Theme_JSON( $config, 'custom' ); } return static::$user; } /** * Returns the data merged from multiple origins. * * There are four sources of data (origins) for a site: * * - default => WordPress * - blocks => each one of the blocks provides data for itself * - theme => the active theme * - custom => data provided by the user * * The custom's has higher priority than the theme's, the theme's higher than blocks', * and block's higher than default's. * * Unlike the getters * {@link https://developer.wordpress.org/reference/classes/wp_theme_json_resolver/get_core_data/ get_core_data}, * {@link https://developer.wordpress.org/reference/classes/wp_theme_json_resolver/get_theme_data/ get_theme_data}, * and {@link https://developer.wordpress.org/reference/classes/wp_theme_json_resolver/get_user_data/ get_user_data}, * this method returns data after it has been merged with the previous origins. * This means that if the same piece of data is declared in different origins * (default, blocks, theme, custom), the last origin overrides the previous. * * For example, if the user has set a background color * for the paragraph block, and the theme has done it as well, * the user preference wins. * * @since 5.8.0 * @since 5.9.0 Added user data, removed the `$settings` parameter, * added the `$origin` parameter. * @since 6.1.0 Added block data and generation of spacingSizes array. * @since 6.2.0 Changed ' $origin' parameter values to 'default', 'blocks', 'theme' or 'custom'. * * @param string $origin Optional. To what level should we merge data: 'default', 'blocks', 'theme' or 'custom'. * 'custom' is used as default value as well as fallback value if the origin is unknown. * @return WP_Theme_JSON */ public static function get_merged_data( $origin = 'custom' ) { if ( is_array( $origin ) ) { _deprecated_argument( __FUNCTION__, '5.9.0' ); } $result = new WP_Theme_JSON(); $result->merge( static::get_core_data() ); if ( 'default' === $origin ) { return $result; } $result->merge( static::get_block_data() ); if ( 'blocks' === $origin ) { return $result; } $result->merge( static::get_theme_data() ); if ( 'theme' === $origin ) { return $result; } $result->merge( static::get_user_data() ); return $result; } /** * Returns the ID of the custom post type * that stores user data. * * @since 5.9.0 * * @return integer|null */ public static function get_user_global_styles_post_id() { if ( null !== static::$user_custom_post_type_id ) { return static::$user_custom_post_type_id; } $user_cpt = static::get_user_data_from_wp_global_styles( wp_get_theme(), true ); if ( array_key_exists( 'ID', $user_cpt ) ) { static::$user_custom_post_type_id = $user_cpt['ID']; } return static::$user_custom_post_type_id; } /** * Determines whether the active theme has a theme.json file. * * @since 5.8.0 * @since 5.9.0 Added a check in the parent theme. * @deprecated 6.2.0 Use wp_theme_has_theme_json() instead. * * @return bool */ public static function theme_has_support() { _deprecated_function( __METHOD__, '6.2.0', 'wp_theme_has_theme_json()' ); return wp_theme_has_theme_json(); } /** * Builds the path to the given file and checks that it is readable. * * If it isn't, returns an empty string, otherwise returns the whole file path. * * @since 5.8.0 * @since 5.9.0 Adapted to work with child themes, added the `$template` argument. * * @param string $file_name Name of the file. * @param bool $template Optional. Use template theme directory. Default false. * @return string The whole file path or empty if the file doesn't exist. */ protected static function get_file_path_from_theme( $file_name, $template = false ) { $path = $template ? get_template_directory() : get_stylesheet_directory(); $candidate = $path . '/' . $file_name; return is_readable( $candidate ) ? $candidate : ''; } /** * Cleans the cached data so it can be recalculated. * * @since 5.8.0 * @since 5.9.0 Added the `$user`, `$user_custom_post_type_id`, * and `$i18n_schema` variables to reset. * @since 6.1.0 Added the `$blocks` and `$blocks_cache` variables * to reset. */ public static function clean_cached_data() { static::$core = null; static::$blocks = null; static::$blocks_cache = array( 'core' => array(), 'blocks' => array(), 'theme' => array(), 'user' => array(), ); static::$theme = null; static::$user = null; static::$user_custom_post_type_id = null; static::$i18n_schema = null; } /** * Returns an array of all nested JSON files within a given directory. * * @since 6.2.0 * * @param string $dir The directory to recursively iterate and list files of. * @return array The merged array. */ private static function recursively_iterate_json( $dir ) { $nested_files = new RecursiveIteratorIterator( new RecursiveDirectoryIterator( $dir ) ); $nested_json_files = iterator_to_array( new RegexIterator( $nested_files, '/^.+\.json$/i', RecursiveRegexIterator::GET_MATCH ) ); return $nested_json_files; } /** * Determines if a supplied style variation matches the provided scope. * * For backwards compatibility, if a variation does not define any scope * related property, e.g. `blockTypes`, it is assumed to be a theme style * variation. * * @since 6.6.0 * * @param array $variation Theme.json shaped style variation object. * @param string $scope Scope to check e.g. theme, block etc. * @return boolean */ private static function style_variation_has_scope( $variation, $scope ) { if ( 'block' === $scope ) { return isset( $variation['blockTypes'] ); } if ( 'theme' === $scope ) { return ! isset( $variation['blockTypes'] ); } return false; } /** * Returns the style variations defined by the theme. * * @since 6.0.0 * @since 6.2.0 Returns parent theme variations if theme is a child. * @since 6.6.0 Added configurable scope parameter to allow filtering * theme.json partial files by the scope to which they * can be applied e.g. theme vs block etc. * Added basic caching for read theme.json partial files. * * @param string $scope The scope or type of style variation to retrieve e.g. theme, block etc. * @return array */ public static function get_style_variations( $scope = 'theme' ) { $variation_files = array(); $variations = array(); $base_directory = get_stylesheet_directory() . '/styles'; $template_directory = get_template_directory() . '/styles'; if ( is_dir( $base_directory ) ) { $variation_files = static::recursively_iterate_json( $base_directory ); } if ( is_dir( $template_directory ) && $template_directory !== $base_directory ) { $variation_files_parent = static::recursively_iterate_json( $template_directory ); // If the child and parent variation file basename are the same, only include the child theme's. foreach ( $variation_files_parent as $parent_path => $parent ) { foreach ( $variation_files as $child_path => $child ) { if ( basename( $parent_path ) === basename( $child_path ) ) { unset( $variation_files_parent[ $parent_path ] ); } } } $variation_files = array_merge( $variation_files, $variation_files_parent ); } ksort( $variation_files ); foreach ( $variation_files as $path => $file ) { $decoded_file = self::read_json_file( $path ); if ( is_array( $decoded_file ) && static::style_variation_has_scope( $decoded_file, $scope ) ) { $translated = static::translate( $decoded_file, wp_get_theme()->get( 'TextDomain' ) ); $variation = ( new WP_Theme_JSON( $translated ) )->get_raw_data(); if ( empty( $variation['title'] ) ) { $variation['title'] = basename( $path, '.json' ); } $variations[] = $variation; } } return $variations; } /** * Resolves relative paths in theme.json styles to theme absolute paths * and returns them in an array that can be embedded * as the value of `_link` object in REST API responses. * * @since 6.6.0 * @since 6.7.0 Resolve relative paths in block styles. * * @param WP_Theme_JSON $theme_json A theme json instance. * @return array An array of resolved paths. */ public static function get_resolved_theme_uris( $theme_json ) { $resolved_theme_uris = array(); if ( ! $theme_json instanceof WP_Theme_JSON ) { return $resolved_theme_uris; } $theme_json_data = $theme_json->get_raw_data(); /* * The same file convention when registering web fonts. * See: WP_Font_Face_Resolver::to_theme_file_uri. */ $placeholder = 'file:./'; // Top level styles. $background_image_url = $theme_json_data['styles']['background']['backgroundImage']['url'] ?? null; if ( isset( $background_image_url ) && is_string( $background_image_url ) && // Skip if the src doesn't start with the placeholder, as there's nothing to replace. str_starts_with( $background_image_url, $placeholder ) ) { $file_type = wp_check_filetype( $background_image_url ); $src_url = str_replace( $placeholder, '', $background_image_url ); $resolved_theme_uri = array( 'name' => $background_image_url, 'href' => sanitize_url( get_theme_file_uri( $src_url ) ), 'target' => 'styles.background.backgroundImage.url', ); if ( isset( $file_type['type'] ) ) { $resolved_theme_uri['type'] = $file_type['type']; } $resolved_theme_uris[] = $resolved_theme_uri; } // Block styles. if ( ! empty( $theme_json_data['styles']['blocks'] ) ) { foreach ( $theme_json_data['styles']['blocks'] as $block_name => $block_styles ) { if ( ! isset( $block_styles['background']['backgroundImage']['url'] ) ) { continue; } $background_image_url = $block_styles['background']['backgroundImage']['url']; if ( is_string( $background_image_url ) && // Skip if the src doesn't start with the placeholder, as there's nothing to replace. str_starts_with( $background_image_url, $placeholder ) ) { $file_type = wp_check_filetype( $background_image_url ); $src_url = str_replace( $placeholder, '', $background_image_url ); $resolved_theme_uri = array( 'name' => $background_image_url, 'href' => sanitize_url( get_theme_file_uri( $src_url ) ), 'target' => "styles.blocks.{$block_name}.background.backgroundImage.url", ); if ( isset( $file_type['type'] ) ) { $resolved_theme_uri['type'] = $file_type['type']; } $resolved_theme_uris[] = $resolved_theme_uri; } } } return $resolved_theme_uris; } /** * Resolves relative paths in theme.json styles to theme absolute paths * and merges them with incoming theme JSON. * * @since 6.6.0 * * @param WP_Theme_JSON $theme_json A theme json instance. * @return WP_Theme_JSON Theme merged with resolved paths, if any found. */ public static function resolve_theme_file_uris( $theme_json ) { $resolved_urls = static::get_resolved_theme_uris( $theme_json ); if ( empty( $resolved_urls ) ) { return $theme_json; } $resolved_theme_json_data = $theme_json->get_raw_data(); foreach ( $resolved_urls as $resolved_url ) { $path = explode( '.', $resolved_url['target'] ); _wp_array_set( $resolved_theme_json_data, $path, $resolved_url['href'] ); } return new WP_Theme_JSON( $resolved_theme_json_data ); } /** * Adds variations sourced from block style variations files to the supplied theme.json data. * * @since 6.6.0 * * @param array $data Array following the theme.json specification. * @param array $variations Shared block style variations. * @return array Theme json data including shared block style variation definitions. */ private static function inject_variations_from_block_style_variation_files( $data, $variations ) { if ( empty( $variations ) ) { return $data; } foreach ( $variations as $variation ) { if ( empty( $variation['styles'] ) || empty( $variation['blockTypes'] ) ) { continue; } $variation_name = $variation['slug'] ?? _wp_to_kebab_case( $variation['title'] ); foreach ( $variation['blockTypes'] as $block_type ) { // First, override partial styles with any top-level styles. $top_level_data = $data['styles']['variations'][ $variation_name ] ?? array(); if ( ! empty( $top_level_data ) ) { $variation['styles'] = array_replace_recursive( $variation['styles'], $top_level_data ); } // Then, override styles so far with any block-level styles. $block_level_data = $data['styles']['blocks'][ $block_type ]['variations'][ $variation_name ] ?? array(); if ( ! empty( $block_level_data ) ) { $variation['styles'] = array_replace_recursive( $variation['styles'], $block_level_data ); } $path = array( 'styles', 'blocks', $block_type, 'variations', $variation_name ); _wp_array_set( $data, $path, $variation['styles'] ); } } return $data; } /** * Adds variations sourced from the block styles registry to the supplied theme.json data. * * @since 6.6.0 * * @param array $data Array following the theme.json specification. * @return array Theme json data including shared block style variation definitions. */ private static function inject_variations_from_block_styles_registry( $data ) { $registry = WP_Block_Styles_Registry::get_instance(); $styles = $registry->get_all_registered(); foreach ( $styles as $block_type => $variations ) { foreach ( $variations as $variation_name => $variation ) { if ( empty( $variation['style_data'] ) ) { continue; } // First, override registry styles with any top-level styles. $top_level_data = $data['styles']['variations'][ $variation_name ] ?? array(); if ( ! empty( $top_level_data ) ) { $variation['style_data'] = array_replace_recursive( $variation['style_data'], $top_level_data ); } // Then, override styles so far with any block-level styles. $block_level_data = $data['styles']['blocks'][ $block_type ]['variations'][ $variation_name ] ?? array(); if ( ! empty( $block_level_data ) ) { $variation['style_data'] = array_replace_recursive( $variation['style_data'], $block_level_data ); } $path = array( 'styles', 'blocks', $block_type, 'variations', $variation_name ); _wp_array_set( $data, $path, $variation['style_data'] ); } } return $data; } } m string $url The request URL. */ $pre = apply_filters( 'pre_http_request', false, $parsed_args, $url ); if ( false !== $pre ) { return $pre; } if ( function_exists( 'wp_kses_bad_protocol' ) ) { if ( $parsed_args['reject_unsafe_urls'] ) { $url = wp_http_validate_url( $url ); } if ( $url ) { $url = wp_kses_bad_protocol( $url, array( 'http', 'https', 'ssl' ) ); } } $parsed_url = parse_url( $url ); if ( empty( $url ) || empty( $parsed_url['scheme'] ) ) { $response = new WP_Error( 'http_request_failed', __( 'A valid URL was not provided.' ) ); /** This action is documented in wp-includes/class-wp-http.php */ do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url ); return $response; } if ( $this->block_request( $url ) ) { $response = new WP_Error( 'http_request_not_executed', __( 'User has blocked requests through HTTP.' ) ); /** This action is documented in wp-includes/class-wp-http.php */ do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url ); return $response; } // If we are streaming to a file but no filename was given drop it in the WP temp dir // and pick its name using the basename of the $url. if ( $parsed_args['stream'] ) { if ( empty( $parsed_args['filename'] ) ) { $parsed_args['filename'] = get_temp_dir() . basename( $url ); } // Force some settings if we are streaming to a file and check for existence // and perms of destination directory. $parsed_args['blocking'] = true; if ( ! wp_is_writable( dirname( $parsed_args['filename'] ) ) ) { $response = new WP_Error( 'http_request_failed', __( 'Destination directory for file streaming does not exist or is not writable.' ) ); /** This action is documented in wp-includes/class-wp-http.php */ do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url ); return $response; } } if ( is_null( $parsed_args['headers'] ) ) { $parsed_args['headers'] = array(); } // WP allows passing in headers as a string, weirdly. if ( ! is_array( $parsed_args['headers'] ) ) { $processed_headers = WP_Http::processHeaders( $parsed_args['headers'] ); $parsed_args['headers'] = $processed_headers['headers']; } // Setup arguments. $headers = $parsed_args['headers']; $data = $parsed_args['body']; $type = $parsed_args['method']; $options = array( 'timeout' => $parsed_args['timeout'], 'useragent' => $parsed_args['user-agent'], 'blocking' => $parsed_args['blocking'], 'hooks' => new WP_HTTP_Requests_Hooks( $url, $parsed_args ), ); // Ensure redirects follow browser behavior. $options['hooks']->register( 'requests.before_redirect', array( static::class, 'browser_redirect_compatibility' ) ); // Validate redirected URLs. if ( function_exists( 'wp_kses_bad_protocol' ) && $parsed_args['reject_unsafe_urls'] ) { $options['hooks']->register( 'requests.before_redirect', array( static::class, 'validate_redirects' ) ); } if ( $parsed_args['stream'] ) { $options['filename'] = $parsed_args['filename']; } if ( empty( $parsed_args['redirection'] ) ) { $options['follow_redirects'] = false; } else { $options['redirects'] = $parsed_args['redirection']; } // Use byte limit, if we can. if ( isset( $parsed_args['limit_response_size'] ) ) { $options['max_bytes'] = $parsed_args['limit_response_size']; } // If we've got cookies, use and convert them to WpOrg\Requests\Cookie. if ( ! empty( $parsed_args['cookies'] ) ) { $options['cookies'] = WP_Http::normalize_cookies( $parsed_args['cookies'] ); } // SSL certificate handling. if ( ! $parsed_args['sslverify'] ) { $options['verify'] = false; $options['verifyname'] = false; } else { $options['verify'] = $parsed_args['sslcertificates']; } // All non-GET/HEAD requests should put the arguments in the form body. if ( 'HEAD' !== $type && 'GET' !== $type ) { $options['data_format'] = 'body'; } /** * Filters whether SSL should be verified for non-local requests. * * @since 2.8.0 * @since 5.1.0 The `$url` parameter was added. * * @param bool|string $ssl_verify Boolean to control whether to verify the SSL connection * or path to an SSL certificate. * @param string $url The request URL. */ $options['verify'] = apply_filters( 'https_ssl_verify', $options['verify'], $url ); // Check for proxies. $proxy = new WP_HTTP_Proxy(); if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) { $options['proxy'] = new WpOrg\Requests\Proxy\Http( $proxy->host() . ':' . $proxy->port() ); if ( $proxy->use_authentication() ) { $options['proxy']->use_authentication = true; $options['proxy']->user = $proxy->username(); $options['proxy']->pass = $proxy->password(); } } // Avoid issues where mbstring.func_overload is enabled. mbstring_binary_safe_encoding(); try { $requests_response = WpOrg\Requests\Requests::request( $url, $headers, $data, $type, $options ); // Convert the response into an array. $http_response = new WP_HTTP_Requests_Response( $requests_response, $parsed_args['filename'] ); $response = $http_response->to_array(); // Add the original object to the array. $response['http_response'] = $http_response; } catch ( WpOrg\Requests\Exception $e ) { $response = new WP_Error( 'http_request_failed', $e->getMessage() ); } reset_mbstring_encoding(); /** * Fires after an HTTP API response is received and before the response is returned. * * @since 2.8.0 * * @param array|WP_Error $response HTTP response or WP_Error object. * @param string $context Context under which the hook is fired. * @param string $class HTTP transport used. * @param array $parsed_args HTTP request arguments. * @param string $url The request URL. */ do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url ); if ( is_wp_error( $response ) ) { return $response; } if ( ! $parsed_args['blocking'] ) { return array( 'headers' => array(), 'body' => '', 'response' => array( 'code' => false, 'message' => false, ), 'cookies' => array(), 'http_response' => null, ); } /** * Filters a successful HTTP API response immediately before the response is returned. * * @since 2.9.0 * * @param array $response HTTP response. * @param array $parsed_args HTTP request arguments. * @param string $url The request URL. */ return apply_filters( 'http_response', $response, $parsed_args, $url ); } /** * Normalizes cookies for using in Requests. * * @since 4.6.0 * * @param array $cookies Array of cookies to send with the request. * @return WpOrg\Requests\Cookie\Jar Cookie holder object. */ public static function normalize_cookies( $cookies ) { $cookie_jar = new WpOrg\Requests\Cookie\Jar(); foreach ( $cookies as $name => $value ) { if ( $value instanceof WP_Http_Cookie ) { $attributes = array_filter( $value->get_attributes(), static function ( $attr ) { return null !== $attr; } ); $cookie_jar[ $value->name ] = new WpOrg\Requests\Cookie( (string) $value->name, $value->value, $attributes, array( 'host-only' => $value->host_only ) ); } elseif ( is_scalar( $value ) ) { $cookie_jar[ $name ] = new WpOrg\Requests\Cookie( (string) $name, (string) $value ); } } return $cookie_jar; } /** * Match redirect behavior to browser handling. * * Changes 302 redirects from POST to GET to match browser handling. Per * RFC 7231, user agents can deviate from the strict reading of the * specification for compatibility purposes. * * @since 4.6.0 * * @param string $location URL to redirect to. * @param array $headers Headers for the redirect. * @param string|array $data Body to send with the request. * @param array $options Redirect request options. * @param WpOrg\Requests\Response $original Response object. */ public static function browser_redirect_compatibility( $location, $headers, $data, &$options, $original ) { // Browser compatibility. if ( 302 === $original->status_code ) { $options['type'] = WpOrg\Requests\Requests::GET; } } /** * Validate redirected URLs. * * @since 4.7.5 * * @throws WpOrg\Requests\Exception On unsuccessful URL validation. * @param string $location URL to redirect to. */ public static function validate_redirects( $location ) { if ( ! wp_http_validate_url( $location ) ) { throw new WpOrg\Requests\Exception( __( 'A valid URL was not provided.' ), 'wp_http.redirect_failed_validation' ); } } /** * Tests which transports are capable of supporting the request. * * @since 3.2.0 * @deprecated 6.4.0 Use WpOrg\Requests\Requests::get_transport_class() * @see WpOrg\Requests\Requests::get_transport_class() * * @param array $args Request arguments. * @param string $url URL to request. * @return string|false Class name for the first transport that claims to support the request. * False if no transport claims to support the request. */ public function _get_first_available_transport( $args, $url = null ) { $transports = array( 'curl', 'streams' ); /** * Filters which HTTP transports are available and in what order. * * @since 3.7.0 * @deprecated 6.4.0 Use WpOrg\Requests\Requests::get_transport_class() * * @param string[] $transports Array of HTTP transports to check. Default array contains * 'curl' and 'streams', in that order. * @param array $args HTTP request arguments. * @param string $url The URL to request. */ $request_order = apply_filters_deprecated( 'http_api_transports', array( $transports, $args, $url ), '6.4.0' ); // Loop over each transport on each HTTP request looking for one which will serve this request's needs. foreach ( $request_order as $transport ) { if ( in_array( $transport, $transports, true ) ) { $transport = ucfirst( $transport ); } $class = 'WP_Http_' . $transport; // Check to see if this transport is a possibility, calls the transport statically. if ( ! call_user_func( array( $class, 'test' ), $args, $url ) ) { continue; } return $class; } return false; } /** * Dispatches a HTTP request to a supporting transport. * * Tests each transport in order to find a transport which matches the request arguments. * Also caches the transport instance to be used later. * * The order for requests is cURL, and then PHP Streams. * * @since 3.2.0 * @deprecated 5.1.0 Use WP_Http::request() * @see WP_Http::request() * * @param string $url URL to request. * @param array $args Request arguments. * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. * A WP_Error instance upon error. */ private function _dispatch_request( $url, $args ) { static $transports = array(); $class = $this->_get_first_available_transport( $args, $url ); if ( ! $class ) { return new WP_Error( 'http_failure', __( 'There are no HTTP transports available which can complete the requested request.' ) ); } // Transport claims to support request, instantiate it and give it a whirl. if ( empty( $transports[ $class ] ) ) { $transports[ $class ] = new $class(); } $response = $transports[ $class ]->request( $url, $args ); /** This action is documented in wp-includes/class-wp-http.php */ do_action( 'http_api_debug', $response, 'response', $class, $args, $url ); if ( is_wp_error( $response ) ) { return $response; } /** This filter is documented in wp-includes/class-wp-http.php */ return apply_filters( 'http_response', $response, $args, $url ); } /** * Uses the POST HTTP method. * * Used for sending data that is expected to be in the body. * * @since 2.7.0 * * @param string $url The request URL. * @param string|array $args Optional. Override the defaults. * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. * A WP_Error instance upon error. See WP_Http::response() for details. */ public function post( $url, $args = array() ) { $defaults = array( 'method' => 'POST' ); $parsed_args = wp_parse_args( $args, $defaults ); return $this->request( $url, $parsed_args ); } /** * Uses the GET HTTP method. * * Used for sending data that is expected to be in the body. * * @since 2.7.0 * * @param string $url The request URL. * @param string|array $args Optional. Override the defaults. * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. * A WP_Error instance upon error. See WP_Http::response() for details. */ public function get( $url, $args = array() ) { $defaults = array( 'method' => 'GET' ); $parsed_args = wp_parse_args( $args, $defaults ); return $this->request( $url, $parsed_args ); } /** * Uses the HEAD HTTP method. * * Used for sending data that is expected to be in the body. * * @since 2.7.0 * * @param string $url The request URL. * @param string|array $args Optional. Override the defaults. * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. * A WP_Error instance upon error. See WP_Http::response() for details. */ public function head( $url, $args = array() ) { $defaults = array( 'method' => 'HEAD' ); $parsed_args = wp_parse_args( $args, $defaults ); return $this->request( $url, $parsed_args ); } /** * Parses the responses and splits the parts into headers and body. * * @since 2.7.0 * * @param string $response The full response string. * @return array { * Array with response headers and body. * * @type string $headers HTTP response headers. * @type string $body HTTP response body. * } */ public static function processResponse( $response ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid $response = explode( "\r\n\r\n", $response, 2 ); return array( 'headers' => $response[0], 'body' => isset( $response[1] ) ? $response[1] : '', ); } /** * Transforms header string into an array. * * @since 2.7.0 * * @param string|array $headers The original headers. If a string is passed, it will be converted * to an array. If an array is passed, then it is assumed to be * raw header data with numeric keys with the headers as the values. * No headers must be passed that were already processed. * @param string $url Optional. The URL that was requested. Default empty. * @return array { * Processed string headers. If duplicate headers are encountered, * then a numbered array is returned as the value of that header-key. * * @type array $response { * @type int $code The response status code. Default 0. * @type string $message The response message. Default empty. * } * @type array $newheaders The processed header data as a multidimensional array. * @type WP_Http_Cookie[] $cookies If the original headers contain the 'Set-Cookie' key, * an array containing `WP_Http_Cookie` objects is returned. * } */ public static function processHeaders( $headers, $url = '' ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid // Split headers, one per array element. if ( is_string( $headers ) ) { // Tolerate line terminator: CRLF = LF (RFC 2616 19.3). $headers = str_replace( "\r\n", "\n", $headers ); /* * Unfold folded header fields. LWS = [CRLF] 1*( SP | HT ) , * (RFC 2616 2.2). */ $headers = preg_replace( '/\n[ \t]/', ' ', $headers ); // Create the headers array. $headers = explode( "\n", $headers ); } $response = array( 'code' => 0, 'message' => '', ); /* * If a redirection has taken place, The headers for each page request may have been passed. * In this case, determine the final HTTP header and parse from there. */ for ( $i = count( $headers ) - 1; $i >= 0; $i-- ) { if ( ! empty( $headers[ $i ] ) && ! str_contains( $headers[ $i ], ':' ) ) { $headers = array_splice( $headers, $i ); break; } } $cookies = array(); $newheaders = array(); foreach ( (array) $headers as $tempheader ) { if ( empty( $tempheader ) ) { continue; } if ( ! str_contains( $tempheader, ':' ) ) { $stack = explode( ' ', $tempheader, 3 ); $stack[] = ''; list( , $response['code'], $response['message']) = $stack; continue; } list($key, $value) = explode( ':', $tempheader, 2 ); $key = strtolower( $key ); $value = trim( $value ); if ( isset( $newheaders[ $key ] ) ) { if ( ! is_array( $newheaders[ $key ] ) ) { $newheaders[ $key ] = array( $newheaders[ $key ] ); } $newheaders[ $key ][] = $value; } else { $newheaders[ $key ] = $value; } if ( 'set-cookie' === $key ) { $cookies[] = new WP_Http_Cookie( $value, $url ); } } // Cast the Response Code to an int. $response['code'] = (int) $response['code']; return array( 'response' => $response, 'headers' => $newheaders, 'cookies' => $cookies, ); } /** * Takes the arguments for a ::request() and checks for the cookie array. * * If it's found, then it upgrades any basic name => value pairs to WP_Http_Cookie instances, * which are each parsed into strings and added to the Cookie: header (within the arguments array). * Edits the array by reference. * * @since 2.8.0 * * @param array $r Full array of args passed into ::request() */ public static function buildCookieHeader( &$r ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid if ( ! empty( $r['cookies'] ) ) { // Upgrade any name => value cookie pairs to WP_HTTP_Cookie instances. foreach ( $r['cookies'] as $name => $value ) { if ( ! is_object( $value ) ) { $r['cookies'][ $name ] = new WP_Http_Cookie( array( 'name' => $name, 'value' => $value, ) ); } } $cookies_header = ''; foreach ( (array) $r['cookies'] as $cookie ) { $cookies_header .= $cookie->getHeaderValue() . '; '; } $cookies_header = substr( $cookies_header, 0, -2 ); $r['headers']['cookie'] = $cookies_header; } } /** * Decodes chunk transfer-encoding, based off the HTTP 1.1 specification. * * Based off the HTTP http_encoding_dechunk function. * * @link https://tools.ietf.org/html/rfc2616#section-19.4.6 Process for chunked decoding. * * @since 2.7.0 * * @param string $body Body content. * @return string Chunked decoded body on success or raw body on failure. */ public static function chunkTransferDecode( $body ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid // The body is not chunked encoded or is malformed. if ( ! preg_match( '/^([0-9a-f]+)[^\r\n]*\r\n/i', trim( $body ) ) ) { return $body; } $parsed_body = ''; // We'll be altering $body, so need a backup in case of error. $body_original = $body; while ( true ) { $has_chunk = (bool) preg_match( '/^([0-9a-f]+)[^\r\n]*\r\n/i', $body, $match ); if ( ! $has_chunk || empty( $match[1] ) ) { return $body_original; } $length = hexdec( $match[1] ); $chunk_length = strlen( $match[0] ); // Parse out the chunk of data. $parsed_body .= substr( $body, $chunk_length, $length ); // Remove the chunk from the raw data. $body = substr( $body, $length + $chunk_length ); // End of the document. if ( '0' === trim( $body ) ) { return $parsed_body; } } } /** * Determines whether an HTTP API request to the given URL should be blocked. * * Those who are behind a proxy and want to prevent access to certain hosts may do so. This will * prevent plugins from working and core functionality, if you don't include `api.wordpress.org`. * * You block external URL requests by defining `WP_HTTP_BLOCK_EXTERNAL` as true in your `wp-config.php` * file and this will only allow localhost and your site to make requests. The constant * `WP_ACCESSIBLE_HOSTS` will allow additional hosts to go through for requests. The format of the * `WP_ACCESSIBLE_HOSTS` constant is a comma separated list of hostnames to allow, wildcard domains * are supported, eg `*.wordpress.org` will allow for all subdomains of `wordpress.org` to be contacted. * * @since 2.8.0 * * @link https://core.trac.wordpress.org/ticket/8927 Allow preventing external requests. * @link https://core.trac.wordpress.org/ticket/14636 Allow wildcard domains in WP_ACCESSIBLE_HOSTS * * @param string $uri URI of url. * @return bool True to block, false to allow. */ public function block_request( $uri ) { // We don't need to block requests, because nothing is blocked. if ( ! defined( 'WP_HTTP_BLOCK_EXTERNAL' ) || ! WP_HTTP_BLOCK_EXTERNAL ) { return false; } $check = parse_url( $uri ); if ( ! $check ) { return true; } $home = parse_url( get_option( 'siteurl' ) ); // Don't block requests back to ourselves by default. if ( 'localhost' === $check['host'] || ( isset( $home['host'] ) && $home['host'] === $check['host'] ) ) { /** * Filters whether to block local HTTP API requests. * * A local request is one to `localhost` or to the same host as the site itself. * * @since 2.8.0 * * @param bool $block Whether to block local requests. Default false. */ return apply_filters( 'block_local_requests', false ); } if ( ! defined( 'WP_ACCESSIBLE_HOSTS' ) ) { return true; } static $accessible_hosts = null; static $wildcard_regex = array(); if ( null === $accessible_hosts ) { $accessible_hosts = preg_split( '|,\s*|', WP_ACCESSIBLE_HOSTS ); if ( str_contains( WP_ACCESSIBLE_HOSTS, '*' ) ) { $wildcard_regex = array(); foreach ( $accessible_hosts as $host ) { $wildcard_regex[] = str_replace( '\*', '.+', preg_quote( $host, '/' ) ); } $wildcard_regex = '/^(' . implode( '|', $wildcard_regex ) . ')$/i'; } } if ( ! empty( $wildcard_regex ) ) { return ! preg_match( $wildcard_regex, $check['host'] ); } else { return ! in_array( $check['host'], $accessible_hosts, true ); // Inverse logic, if it's in the array, then don't block it. } } /** * Used as a wrapper for PHP's parse_url() function that handles edgecases in < PHP 5.4.7. * * @deprecated 4.4.0 Use wp_parse_url() * @see wp_parse_url() * * @param string $url The URL to parse. * @return bool|array False on failure; Array of URL components on success; * See parse_url()'s return values. */ protected static function parse_url( $url ) { _deprecated_function( __METHOD__, '4.4.0', 'wp_parse_url()' ); return wp_parse_url( $url ); } /** * Converts a relative URL to an absolute URL relative to a given URL. * * If an Absolute URL is provided, no processing of that URL is done. * * @since 3.4.0 * * @param string $maybe_relative_path The URL which might be relative. * @param string $url The URL which $maybe_relative_path is relative to. * @return string An Absolute URL, in a failure condition where the URL cannot be parsed, the relative URL will be returned. */ public static function make_absolute_url( $maybe_relative_path, $url ) { if ( empty( $url ) ) { return $maybe_relative_path; } $url_parts = wp_parse_url( $url ); if ( ! $url_parts ) { return $maybe_relative_path; } $relative_url_parts = wp_parse_url( $maybe_relative_path ); if ( ! $relative_url_parts ) { return $maybe_relative_path; } // Check for a scheme on the 'relative' URL. if ( ! empty( $relative_url_parts['scheme'] ) ) { return $maybe_relative_path; } $absolute_path = $url_parts['scheme'] . '://'; // Schemeless URLs will make it this far, so we check for a host in the relative URL // and convert it to a protocol-URL. if ( isset( $relative_url_parts['host'] ) ) { $absolute_path .= $relative_url_parts['host']; if ( isset( $relative_url_parts['port'] ) ) { $absolute_path .= ':' . $relative_url_parts['port']; } } else { $absolute_path .= $url_parts['host']; if ( isset( $url_parts['port'] ) ) { $absolute_path .= ':' . $url_parts['port']; } } // Start off with the absolute URL path. $path = ! empty( $url_parts['path'] ) ? $url_parts['path'] : '/'; // If it's a root-relative path, then great. if ( ! empty( $relative_url_parts['path'] ) && '/' === $relative_url_parts['path'][0] ) { $path = $relative_url_parts['path']; // Else it's a relative path. } elseif ( ! empty( $relative_url_parts['path'] ) ) { // Strip off any file components from the absolute path. $path = substr( $path, 0, strrpos( $path, '/' ) + 1 ); // Build the new path. $path .= $relative_url_parts['path']; // Strip all /path/../ out of the path. while ( strpos( $path, '../' ) > 1 ) { $path = preg_replace( '![^/]+/\.\./!', '', $path ); } // Strip any final leading ../ from the path. $path = preg_replace( '!^/(\.\./)+!', '', $path ); } // Add the query string. if ( ! empty( $relative_url_parts['query'] ) ) { $path .= '?' . $relative_url_parts['query']; } // Add the fragment. if ( ! empty( $relative_url_parts['fragment'] ) ) { $path .= '#' . $relative_url_parts['fragment']; } return $absolute_path . '/' . ltrim( $path, '/' ); } /** * Handles an HTTP redirect and follows it if appropriate. * * @since 3.7.0 * * @param string $url The URL which was requested. * @param array $args The arguments which were used to make the request. * @param array $response The response of the HTTP request. * @return array|false|WP_Error An HTTP API response array if the redirect is successfully followed, * false if no redirect is present, or a WP_Error object if there's an error. */ public static function handle_redirects( $url, $args, $response ) { // If no redirects are present, or, redirects were not requested, perform no action. if ( ! isset( $response['headers']['location'] ) || 0 === $args['_redirection'] ) { return false; } // Only perform redirections on redirection http codes. if ( $response['response']['code'] > 399 || $response['response']['code'] < 300 ) { return false; } // Don't redirect if we've run out of redirects. if ( $args['redirection']-- <= 0 ) { return new WP_Error( 'http_request_failed', __( 'Too many redirects.' ) ); } $redirect_location = $response['headers']['location']; // If there were multiple Location headers, use the last header specified. if ( is_array( $redirect_location ) ) { $redirect_location = array_pop( $redirect_location ); } $redirect_location = WP_Http::make_absolute_url( $redirect_location, $url ); // POST requests should not POST to a redirected location. if ( 'POST' === $args['method'] ) { if ( in_array( $response['response']['code'], array( 302, 303 ), true ) ) { $args['method'] = 'GET'; } } // Include valid cookies in the redirect process. if ( ! empty( $response['cookies'] ) ) { foreach ( $response['cookies'] as $cookie ) { if ( $cookie->test( $redirect_location ) ) { $args['cookies'][] = $cookie; } } } return wp_remote_request( $redirect_location, $args ); } /** * Determines if a specified string represents an IP address or not. * * This function also detects the type of the IP address, returning either * '4' or '6' to represent an IPv4 and IPv6 address respectively. * This does not verify if the IP is a valid IP, only that it appears to be * an IP address. * * @link http://home.deds.nl/~aeron/regex/ for IPv6 regex. * * @since 3.7.0 * * @param string $maybe_ip A suspected IP address. * @return int|false Upon success, '4' or '6' to represent an IPv4 or IPv6 address, false upon failure. */ public static function is_ip_address( $maybe_ip ) { if ( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/', $maybe_ip ) ) { return 4; } if ( str_contains( $maybe_ip, ':' ) && preg_match( '/^(((?=.*(::))(?!.*\3.+\3))\3?|([\dA-F]{1,4}(\3|:\b|$)|\2))(?4){5}((?4){2}|(((2[0-4]|1\d|[1-9])?\d|25[0-5])\.?\b){4})$/i', trim( $maybe_ip, ' []' ) ) ) { return 6; } return false; } }