r the parent.
					 */
					$parent_theme->merge( static::$theme );
					static::$theme = $parent_theme;
				}
			}
		}

		if ( ! $options['with_supports'] ) {
			return static::$theme;
		}

		/*
		 * We want the presets and settings declared in theme.json
		 * to override the ones declared via theme supports.
		 * So we take theme supports, transform it to theme.json shape
		 * and merge the static::$theme upon that.
		 */
		$theme_support_data = WP_Theme_JSON::get_from_editor_settings( get_classic_theme_supports_block_editor_settings() );
		if ( ! wp_theme_has_theme_json() ) {
			if ( ! isset( $theme_support_data['settings']['color'] ) ) {
				$theme_support_data['settings']['color'] = array();
			}

			$default_palette = false;
			if ( current_theme_supports( 'default-color-palette' ) ) {
				$default_palette = true;
			}
			if ( ! isset( $theme_support_data['settings']['color']['palette'] ) ) {
				// If the theme does not have any palette, we still want to show the core one.
				$default_palette = true;
			}
			$theme_support_data['settings']['color']['defaultPalette'] = $default_palette;

			$default_gradients = false;
			if ( current_theme_supports( 'default-gradient-presets' ) ) {
				$default_gradients = true;
			}
			if ( ! isset( $theme_support_data['settings']['color']['gradients'] ) ) {
				// If the theme does not have any gradients, we still want to show the core ones.
				$default_gradients = true;
			}
			$theme_support_data['settings']['color']['defaultGradients'] = $default_gradients;

			// Classic themes without a theme.json don't support global duotone.
			$theme_support_data['settings']['color']['defaultDuotone'] = false;

			// Allow themes to enable link color setting via theme_support.
			if ( current_theme_supports( 'link-color' ) ) {
				$theme_support_data['settings']['color']['link'] = true;
			}

			// Allow themes to enable all border settings via theme_support.
			if ( current_theme_supports( 'border' ) ) {
				$theme_support_data['settings']['border']['color']  = true;
				$theme_support_data['settings']['border']['radius'] = true;
				$theme_support_data['settings']['border']['style']  = true;
				$theme_support_data['settings']['border']['width']  = true;
			}
		}
		$with_theme_supports = new WP_Theme_JSON( $theme_support_data );
		$with_theme_supports->merge( static::$theme );
		return $with_theme_supports;
	}

	/**
	 * Gets the styles for blocks from the block.json file.
	 *
	 * @since 6.1.0
	 *
	 * @return WP_Theme_JSON
	 */
	public static function get_block_data() {
		$registry = WP_Block_Type_Registry::get_instance();
		$blocks   = $registry->get_all_registered();

		if ( null !== static::$blocks && static::has_same_registered_blocks( 'blocks' ) ) {
			return static::$blocks;
		}

		$config = array( 'version' => 2 );
		foreach ( $blocks as $block_name => $block_type ) {
			if ( isset( $block_type->supports['__experimentalStyle'] ) ) {
				$config['styles']['blocks'][ $block_name ] = static::remove_json_comments( $block_type->supports['__experimentalStyle'] );
			}

			if (
				isset( $block_type->supports['spacing']['blockGap']['__experimentalDefault'] ) &&
				null === _wp_array_get( $config, array( 'styles', 'blocks', $block_name, 'spacing', 'blockGap' ), null )
			) {
				/*
				 * Ensure an empty placeholder value exists for the block, if it provides a default blockGap value.
				 * The real blockGap value to be used will be determined when the styles are rendered for output.
				 */
				$config['styles']['blocks'][ $block_name ]['spacing']['blockGap'] = null;
			}
		}

		/**
		 * Filters the data provided by the blocks 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_blocks', new WP_Theme_JSON_Data( $config, 'blocks' ) );
		$config     = $theme_json->get_data();

		static::$blocks = new WP_Theme_JSON( $config, 'blocks' );
		return static::$blocks;
	}

	/**
	 * When given an array, this will remove any keys with the name `//`.
	 *
	 * @since 6.1.0
	 *
	 * @param array $input_array The array to filter.
	 * @return array The filtered array.
	 */
	private static function remove_json_comments( $input_array ) {
		unset( $input_array['//'] );
		foreach ( $input_array as $k => $v ) {
			if ( is_array( $v ) ) {
				$input_array[ $k ] = static::remove_json_comments( $v );
			}
		}

		return $input_array;
	}

	/**
	 * Returns the custom post type that contains the user's origin config
	 * for the active theme or an empty array if none are found.
	 *
	 * This can also create and return a new draft custom post type.
	 *
	 * @since 5.9.0
	 *
	 * @param WP_Theme $theme              The theme object. If empty, it
	 *                                     defaults to the active theme.
	 * @param bool     $create_post        Optional. Whether a new custom post
	 *                                     type should be created if none are
	 *                                     found. Default false.
	 * @param array    $post_status_filter Optional. Filter custom post type by
	 *                                     post status. Default `array( 'publish' )`,
	 *                                     so it only fetches published posts.
	 * @return array Custom Post Type for the user's origin config.
	 */
	public static function get_user_data_from_wp_global_styles( $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
	 *
	 * @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 ) {
				trigger_error( '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' ) );
				$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' ) );
		$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 ) {
			$result->set_spacing_sizes();
			return $result;
		}

		$result->merge( static::get_block_data() );
		if ( 'blocks' === $origin ) {
			return $result;
		}

		$result->merge( static::get_theme_data() );
		if ( 'theme' === $origin ) {
			$result->set_spacing_sizes();
			return $result;
		}

		$result->merge( static::get_user_data() );
		$result->set_spacing_sizes();

		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;
	}


	/**
	 * 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.
	 *
	 * @return array
	 */
	public static function get_style_variations() {
		$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 = wp_json_file_decode( $path, array( 'associative' => true ) );
			if ( is_array( $decoded_file ) ) {
				$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;
	}
}
LT_TRANSPORTS;
		}

		self::$transports[$transport] = $transport;
	}

	/**
	 * Get the fully qualified class name (FQCN) for a working transport.
	 *
	 * @param array<string, bool> $capabilities Optional. Associative array of capabilities to test against, i.e. `['<capability>' => true]`.
	 * @return string FQCN of the transport to use, or an empty string if no transport was
	 *                found which provided the requested capabilities.
	 */
	protected static function get_transport_class(array $capabilities = []) {
		// Caching code, don't bother testing coverage.
		// @codeCoverageIgnoreStart
		// Array of capabilities as a string to be used as an array key.
		ksort($capabilities);
		$cap_string = serialize($capabilities);

		// Don't search for a transport if it's already been done for these $capabilities.
		if (isset(self::$transport[$cap_string])) {
			return self::$transport[$cap_string];
		}

		// Ensure we will not run this same check again later on.
		self::$transport[$cap_string] = '';
		// @codeCoverageIgnoreEnd

		if (empty(self::$transports)) {
			self::$transports = self::DEFAULT_TRANSPORTS;
		}

		// Find us a working transport.
		foreach (self::$transports as $class) {
			if (!class_exists($class)) {
				continue;
			}

			$result = $class::test($capabilities);
			if ($result === true) {
				self::$transport[$cap_string] = $class;
				break;
			}
		}

		return self::$transport[$cap_string];
	}

	/**
	 * Get a working transport.
	 *
	 * @param array<string, bool> $capabilities Optional. Associative array of capabilities to test against, i.e. `['<capability>' => true]`.
	 * @return \WpOrg\Requests\Transport
	 * @throws \WpOrg\Requests\Exception If no valid transport is found (`notransport`).
	 */
	protected static function get_transport(array $capabilities = []) {
		$class = self::get_transport_class($capabilities);

		if ($class === '') {
			throw new Exception('No working transports found', 'notransport', self::$transports);
		}

		return new $class();
	}

	/**
	 * Checks to see if we have a transport for the capabilities requested.
	 *
	 * Supported capabilities can be found in the {@see \WpOrg\Requests\Capability}
	 * interface as constants.
	 *
	 * Example usage:
	 * `Requests::has_capabilities([Capability::SSL => true])`.
	 *
	 * @param array<string, bool> $capabilities Optional. Associative array of capabilities to test against, i.e. `['<capability>' => true]`.
	 * @return bool Whether the transport has the requested capabilities.
	 */
	public static function has_capabilities(array $capabilities = []) {
		return self::get_transport_class($capabilities) !== '';
	}

	/**#@+
	 * @see \WpOrg\Requests\Requests::request()
	 * @param string $url
	 * @param array $headers
	 * @param array $options
	 * @return \WpOrg\Requests\Response
	 */
	/**
	 * Send a GET request
	 */
	public static function get($url, $headers = [], $options = []) {
		return self::request($url, $headers, null, self::GET, $options);
	}

	/**
	 * Send a HEAD request
	 */
	public static function head($url, $headers = [], $options = []) {
		return self::request($url, $headers, null, self::HEAD, $options);
	}

	/**
	 * Send a DELETE request
	 */
	public static function delete($url, $headers = [], $options = []) {
		return self::request($url, $headers, null, self::DELETE, $options);
	}

	/**
	 * Send a TRACE request
	 */
	public static function trace($url, $headers = [], $options = []) {
		return self::request($url, $headers, null, self::TRACE, $options);
	}
	/**#@-*/

	/**#@+
	 * @see \WpOrg\Requests\Requests::request()
	 * @param string $url
	 * @param array $headers
	 * @param array $data
	 * @param array $options
	 * @return \WpOrg\Requests\Response
	 */
	/**
	 * Send a POST request
	 */
	public static function post($url, $headers = [], $data = [], $options = []) {
		return self::request($url, $headers, $data, self::POST, $options);
	}
	/**
	 * Send a PUT request
	 */
	public static function put($url, $headers = [], $data = [], $options = []) {
		return self::request($url, $headers, $data, self::PUT, $options);
	}

	/**
	 * Send an OPTIONS request
	 */
	public static function options($url, $headers = [], $data = [], $options = []) {
		return self::request($url, $headers, $data, self::OPTIONS, $options);
	}

	/**
	 * Send a PATCH request
	 *
	 * Note: Unlike {@see \WpOrg\Requests\Requests::post()} and {@see \WpOrg\Requests\Requests::put()},
	 * `$headers` is required, as the specification recommends that should send an ETag
	 *
	 * @link https://tools.ietf.org/html/rfc5789
	 */
	public static function patch($url, $headers, $data = [], $options = []) {
		return self::request($url, $headers, $data, self::PATCH, $options);
	}
	/**#@-*/

	/**
	 * Main interface for HTTP requests
	 *
	 * This method initiates a request and sends it via a transport before
	 * parsing.
	 *
	 * The `$options` parameter takes an associative array with the following
	 * options:
	 *
	 * - `timeout`: How long should we wait for a response?
	 *    Note: for cURL, a minimum of 1 second applies, as DNS resolution
	 *    operates at second-resolution only.
	 *    (float, seconds with a millisecond precision, default: 10, example: 0.01)
	 * - `connect_timeout`: How long should we wait while trying to connect?
	 *    (float, seconds with a millisecond precision, default: 10, example: 0.01)
	 * - `useragent`: Useragent to send to the server
	 *    (string, default: php-requests/$version)
	 * - `follow_redirects`: Should we follow 3xx redirects?
	 *    (boolean, default: true)
	 * - `redirects`: How many times should we redirect before erroring?
	 *    (integer, default: 10)
	 * - `blocking`: Should we block processing on this request?
	 *    (boolean, default: true)
	 * - `filename`: File to stream the body to instead.
	 *    (string|boolean, default: false)
	 * - `auth`: Authentication handler or array of user/password details to use
	 *    for Basic authentication
	 *    (\WpOrg\Requests\Auth|array|boolean, default: false)
	 * - `proxy`: Proxy details to use for proxy by-passing and authentication
	 *    (\WpOrg\Requests\Proxy|array|string|boolean, default: false)
	 * - `max_bytes`: Limit for the response body size.
	 *    (integer|boolean, default: false)
	 * - `idn`: Enable IDN parsing
	 *    (boolean, default: true)
	 * - `transport`: Custom transport. Either a class name, or a
	 *    transport object. Defaults to the first working transport from
	 *    {@see \WpOrg\Requests\Requests::getTransport()}
	 *    (string|\WpOrg\Requests\Transport, default: {@see \WpOrg\Requests\Requests::getTransport()})
	 * - `hooks`: Hooks handler.
	 *    (\WpOrg\Requests\HookManager, default: new WpOrg\Requests\Hooks())
	 * - `verify`: Should we verify SSL certificates? Allows passing in a custom
	 *    certificate file as a string. (Using true uses the system-wide root
	 *    certificate store instead, but this may have different behaviour
	 *    across transports.)
	 *    (string|boolean, default: certificates/cacert.pem)
	 * - `verifyname`: Should we verify the common name in the SSL certificate?
	 *    (boolean, default: true)
	 * - `data_format`: How should we send the `$data` parameter?
	 *    (string, one of 'query' or 'body', default: 'query' for
	 *    HEAD/GET/DELETE, 'body' for POST/PUT/OPTIONS/PATCH)
	 *
	 * @param string|Stringable $url URL to request
	 * @param array $headers Extra headers to send with the request
	 * @param array|null $data Data to send either as a query string for GET/HEAD requests, or in the body for POST requests
	 * @param string $type HTTP request type (use Requests constants)
	 * @param array $options Options for the request (see description for more information)
	 * @return \WpOrg\Requests\Response
	 *
	 * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed $url argument is not a string or Stringable.
	 * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed $type argument is not a string.
	 * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed $options argument is not an array.
	 * @throws \WpOrg\Requests\Exception On invalid URLs (`nonhttp`)
	 */
	public static function request($url, $headers = [], $data = [], $type = self::GET, $options = []) {
		if (InputValidator::is_string_or_stringable($url) === false) {
			throw InvalidArgument::create(1, '$url', 'string|Stringable', gettype($url));
		}

		if (is_string($type) === false) {
			throw InvalidArgument::create(4, '$type', 'string', gettype($type));
		}

		if (is_array($options) === false) {
			throw InvalidArgument::create(5, '$options', 'array', gettype($options));
		}

		if (empty($options['type'])) {
			$options['type'] = $type;
		}

		$options = array_merge(self::get_default_options(), $options);

		self::set_defaults($url, $headers, $data, $type, $options);

		$options['hooks']->dispatch('requests.before_request', [&$url, &$headers, &$data, &$type, &$options]);

		if (!empty($options['transport'])) {
			$transport = $options['transport'];

			if (is_string($options['transport'])) {
				$transport = new $transport();
			}
		} else {
			$need_ssl     = (stripos($url, 'https://') === 0);
			$capabilities = [Capability::SSL => $need_ssl];
			$transport    = self::get_transport($capabilities);
		}

		$response = $transport->request($url, $headers, $data, $options);

		$options['hooks']->dispatch('requests.before_parse', [&$response, $url, $headers, $data, $type, $options]);

		return self::parse_response($response, $url, $headers, $data, $options);
	}

	/**
	 * Send multiple HTTP requests simultaneously
	 *
	 * The `$requests` parameter takes an associative or indexed array of
	 * request fields. The key of each request can be used to match up the
	 * request with the returned data, or with the request passed into your
	 * `multiple.request.complete` callback.
	 *
	 * The request fields value is an associative array with the following keys:
	 *
	 * - `url`: Request URL Same as the `$url` parameter to
	 *    {@see \WpOrg\Requests\Requests::request()}
	 *    (string, required)
	 * - `headers`: Associative array of header fields. Same as the `$headers`
	 *    parameter to {@see \WpOrg\Requests\Requests::request()}
	 *    (array, default: `array()`)
	 * - `data`: Associative array of data fields or a string. Same as the
	 *    `$data` parameter to {@see \WpOrg\Requests\Requests::request()}
	 *    (array|string, default: `array()`)
	 * - `type`: HTTP request type (use \WpOrg\Requests\Requests constants). Same as the `$type`
	 *    parameter to {@see \WpOrg\Requests\Requests::request()}
	 *    (string, default: `\WpOrg\Requests\Requests::GET`)
	 * - `cookies`: Associative array of cookie name to value, or cookie jar.
	 *    (array|\WpOrg\Requests\Cookie\Jar)
	 *
	 * If the `$options` parameter is specified, individual requests will
	 * inherit options from it. This can be used to use a single hooking system,
	 * or set all the types to `\WpOrg\Requests\Requests::POST`, for example.
	 *
	 * In addition, the `$options` parameter takes the following global options:
	 *
	 * - `complete`: A callback for when a request is complete. Takes two
	 *    parameters, a \WpOrg\Requests\Response/\WpOrg\Requests\Exception reference, and the
	 *    ID from the request array (Note: this can also be overridden on a
	 *    per-request basis, although that's a little silly)
	 *    (callback)
	 *
	 * @param array $requests Requests data (see description for more information)
	 * @param array $options Global and default options (see {@see \WpOrg\Requests\Requests::request()})
	 * @return array Responses (either \WpOrg\Requests\Response or a \WpOrg\Requests\Exception object)
	 *
	 * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed $requests argument is not an array or iterable object with array access.
	 * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed $options argument is not an array.
	 */
	public static function request_multiple($requests, $options = []) {
		if (InputValidator::has_array_access($requests) === false || InputValidator::is_iterable($requests) === false) {
			throw InvalidArgument::create(1, '$requests', 'array|ArrayAccess&Traversable', gettype($requests));
		}

		if (is_array($options) === false) {
			throw InvalidArgument::create(2, '$options', 'array', gettype($options));
		}

		$options = array_merge(self::get_default_options(true), $options);

		if (!empty($options['hooks'])) {
			$options['hooks']->register('transport.internal.parse_response', [static::class, 'parse_multiple']);
			if (!empty($options['complete'])) {
				$options['hooks']->register('multiple.request.complete', $options['complete']);
			}
		}

		foreach ($requests as $id => &$request) {
			if (!isset($request['headers'])) {
				$request['headers'] = [];
			}

			if (!isset($request['data'])) {
				$request['data'] = [];
			}

			if (!isset($request['type'])) {
				$request['type'] = self::GET;
			}

			if (!isset($request['options'])) {
				$request['options']         = $options;
				$request['options']['type'] = $request['type'];
			} else {
				if (empty($request['options']['type'])) {
					$request['options']['type'] = $request['type'];
				}

				$request['options'] = array_merge($options, $request['options']);
			}

			self::set_defaults($request['url'], $request['headers'], $request['data'], $request['type'], $request['options']);

			// Ensure we only hook in once
			if ($request['options']['hooks'] !== $options['hooks']) {
				$request['options']['hooks']->register('transport.internal.parse_response', [static::class, 'parse_multiple']);
				if (!empty($request['options']['complete'])) {
					$request['options']['hooks']->register('multiple.request.complete', $request['options']['complete']);
				}
			}
		}

		unset($request);

		if (!empty($options['transport'])) {
			$transport = $options['transport'];

			if (is_string($options['transport'])) {
				$transport = new $transport();
			}
		} else {
			$transport = self::get_transport();
		}

		$responses = $transport->request_multiple($requests, $options);

		foreach ($responses as $id => &$response) {
			// If our hook got messed with somehow, ensure we end up with the
			// correct response
			if (is_string($response)) {
				$request = $requests[$id];
				self::parse_multiple($response, $request);
				$request['options']['hooks']->dispatch('multiple.request.complete', [&$response, $id]);
			}
		}

		return $responses;
	}

	/**
	 * Get the default options
	 *
	 * @see \WpOrg\Requests\Requests::request() for values returned by this method
	 * @param boolean $multirequest Is this a multirequest?
	 * @return array Default option values
	 */
	protected static function get_default_options($multirequest = false) {
		$defaults           = static::OPTION_DEFAULTS;
		$defaults['verify'] = self::$certificate_path;

		if ($multirequest !== false) {
			$defaults['complete'] = null;
		}

		return $defaults;
	}

	/**
	 * Get default certificate path.
	 *
	 * @return string Default certificate path.
	 */
	public static function get_certificate_path() {
		return self::$certificate_path;
	}

	/**
	 * Set default certificate path.
	 *
	 * @param string|Stringable|bool $path Certificate path, pointing to a PEM file.
	 *
	 * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed $url argument is not a string, Stringable or boolean.
	 */
	public static function set_certificate_path($path) {
		if (InputValidator::is_string_or_stringable($path) === false && is_bool($path) === false) {
			throw InvalidArgument::create(1, '$path', 'string|Stringable|bool', gettype($path));
		}

		self::$certificate_path = $path;
	}

	/**
	 * Set the default values
	 *
	 * The $options parameter is updated with the results.
	 *
	 * @param string $url URL to request
	 * @param array $headers Extra headers to send with the request
	 * @param array|null $data Data to send either as a query string for GET/HEAD requests, or in the body for POST requests
	 * @param string $type HTTP request type
	 * @param array $options Options for the request
	 * @return void
	 *
	 * @throws \WpOrg\Requests\Exception When the $url is not an http(s) URL.
	 */
	protected static function set_defaults(&$url, &$headers, &$data, &$type, &$options) {
		if (!preg_match('/^http(s)?:\/\//i', $url, $matches)) {
			throw new Exception('Only HTTP(S) requests are handled.', 'nonhttp', $url);
		}

		if (empty($options['hooks'])) {
			$options['hooks'] = new Hooks();
		}

		if (is_array($options['auth'])) {
			$options['auth'] = new Basic($options['auth']);
		}

		if ($options['auth'] !== false) {
			$options['auth']->register($options['hooks']);
		}

		if (is_string($options['proxy']) || is_array($options['proxy'])) {
			$options['proxy'] = new Http($options['proxy']);
		}

		if ($options['proxy'] !== false) {
			$options['proxy']->register($options['hooks']);
		}

		if (is_array($options['cookies'])) {
			$options['cookies'] = new Jar($options['cookies']);
		} elseif (empty($options['cookies'])) {
			$options['cookies'] = new Jar();
		}

		if ($options['cookies'] !== false) {
			$options['cookies']->register($options['hooks']);
		}

		if ($options['idn'] !== false) {
			$iri       = new Iri($url);
			$iri->host = IdnaEncoder::encode($iri->ihost);
			$url       = $iri->uri;
		}

		// Massage the type to ensure we support it.
		$type = strtoupper($type);

		if (!isset($options['data_format'])) {
			if (in_array($type, [self::HEAD, self::GET, self::DELETE], true)) {
				$options['data_format'] = 'query';
			} else {
				$options['data_format'] = 'body';
			}
		}
	}

	/**
	 * HTTP response parser
	 *
	 * @param string $headers Full response text including headers and body
	 * @param string $url Original request URL
	 * @param array $req_headers Original $headers array passed to {@link request()}, in case we need to follow redirects
	 * @param array $req_data Original $data array passed to {@link request()}, in case we need to follow redirects
	 * @param array $options Original $options array passed to {@link request()}, in case we need to follow redirects
	 * @return \WpOrg\Requests\Response
	 *
	 * @throws \WpOrg\Requests\Exception On missing head/body separator (`requests.no_crlf_separator`)
	 * @throws \WpOrg\Requests\Exception On missing head/body separator (`noversion`)
	 * @throws \WpOrg\Requests\Exception On missing head/body separator (`toomanyredirects`)
	 */
	protected static function parse_response($headers, $url, $req_headers, $req_data, $options) {
		$return = new Response();
		if (!$options['blocking']) {
			return $return;
		}

		$return->raw  = $headers;
		$return->url  = (string) $url;
		$return->body = '';

		if (!$options['filename']) {
			$pos = strpos($headers, "\r\n\r\n");
			if ($pos === false) {
				// Crap!
				throw new Exception('Missing header/body separator', 'requests.no_crlf_separator');
			}

			$headers = substr($return->raw, 0, $pos);
			// Headers will always be separated from the body by two new lines - `\n\r\n\r`.
			$body = substr($return->raw, $pos + 4);
			if (!empty($body)) {
				$return->body = $body;
			}
		}

		// Pretend CRLF = LF for compatibility (RFC 2616, section 19.3)
		$headers = str_replace("\r\n", "\n", $headers);
		// Unfold headers (replace [CRLF] 1*( SP | HT ) with SP) as per RFC 2616 (section 2.2)
		$headers = preg_replace('/\n[ \t]/', ' ', $headers);
		$headers = explode("\n", $headers);
		preg_match('#^HTTP/(1\.\d)[ \t]+(\d+)#i', array_shift($headers), $matches);
		if (empty($matches)) {
			throw new Exception('Response could not be parsed', 'noversion', $headers);
		}

		$return->protocol_version = (float) $matches[1];
		$return->status_code      = (int) $matches[2];
		if ($return->status_code >= 200 && $return->status_code < 300) {
			$return->success = true;
		}

		foreach ($headers as $header) {
			list($key, $value) = explode(':', $header, 2);
			$value             = trim($value);
			preg_replace('#(\s+)#i', ' ', $value);
			$return->headers[$key] = $value;
		}

		if (isset($return->headers['transfer-encoding'])) {
			$return->body = self::decode_chunked($return->body);
			unset($return->headers['transfer-encoding']);
		}

		if (isset($return->headers['content-encoding'])) {
			$return->body = self::decompress($return->body);
		}

		//fsockopen and cURL compatibility
		if (isset($return->headers['connection'])) {
			unset($return->headers['connection']);
		}

		$options['hooks']->dispatch('requests.before_redirect_check', [&$return, $req_headers, $req_data, $options]);

		if ($return->is_redirect() && $options['follow_redirects'] === true) {
			if (isset($return->headers['location']) && $options['redirected'] < $options['redirects']) {
				if ($return->status_code === 303) {
					$options['type'] = self::GET;
				}

				$options['redirected']++;
				$location = $return->headers['location'];
				if (strpos($location, 'http://') !== 0 && strpos($location, 'https://') !== 0) {
					// relative redirect, for compatibility make it absolute
					$location = Iri::absolutize($url, $location);
					$location = $location->uri;
				}

				$hook_args = [
					&$location,
					&$req_headers,
					&$req_data,
					&$options,
					$return,
				];
				$options['hooks']->dispatch('requests.before_redirect', $hook_args);
				$redirected            = self::request($location, $req_headers, $req_data, $options['type'], $options);
				$redirected->history[] = $return;
				return $redirected;
			} elseif ($options['redirected'] >= $options['redirects']) {
				throw new Exception('Too many redirects', 'toomanyredirects', $return);
			}
		}

		$return->redirects = $options['redirected'];

		$options['hooks']->dispatch('requests.after_request', [&$return, $req_headers, $req_data, $options]);
		return $return;
	}

	/**
	 * Callback for `transport.internal.parse_response`
	 *
	 * Internal use only. Converts a raw HTTP response to a \WpOrg\Requests\Response
	 * while still executing a multiple request.
	 *
	 * `$response` is either set to a \WpOrg\Requests\Response instance, or a \WpOrg\Requests\Exception object
	 *
	 * @param string $response Full response text including headers and body (will be overwritten with Response instance)
	 * @param array $request Request data as passed into {@see \WpOrg\Requests\Requests::request_multiple()}
	 * @return void
	 */
	public static function parse_multiple(&$response, $request) {
		try {
			$url      = $request['url'];
			$headers  = $request['headers'];
			$data     = $request['data'];
			$options  = $request['options'];
			$response = self::parse_response($response, $url, $headers, $data, $options);
		} catch (Exception $e) {
			$response = $e;
		}
	}

	/**
	 * Decoded a chunked body as per RFC 2616
	 *
	 * @link https://tools.ietf.org/html/rfc2616#section-3.6.1
	 * @param string $data Chunked body
	 * @return string Decoded body
	 */
	protected static function decode_chunked($data) {
		if (!preg_match('/^([0-9a-f]+)(?:;(?:[\w-]*)(?:=(?:(?:[\w-]*)*|"(?:[^\r\n])*"))?)*\r\n/i', trim($data))) {
			return $data;
		}

		$decoded = '';
		$encoded = $data;

		while (true) {
			$is_chunked = (bool) preg_match('/^([0-9a-f]+)(?:;(?:[\w-]*)(?:=(?:(?:[\w-]*)*|"(?:[^\r\n])*"))?)*\r\n/i', $encoded, $matches);
			if (!$is_chunked) {
				// Looks like it's not chunked after all
				return $data;
			}

			$length = hexdec(trim($matches[1]));
			if ($length === 0) {
				// Ignore trailer headers
				return $decoded;
			}

			$chunk_length = strlen($matches[0]);
			$decoded     .= substr($encoded, $chunk_length, $length);
			$encoded      = substr($encoded, $chunk_length + $length + 2);

			if (trim($encoded) === '0' || empty($encoded)) {
				return $decoded;
			}
		}

		// We'll never actually get down here
		// @codeCoverageIgnoreStart
	}
	// @codeCoverageIgnoreEnd

	/**
	 * Convert a key => value array to a 'key: value' array for headers
	 *
	 * @param iterable $dictionary Dictionary of header values
	 * @return array List of headers
	 *
	 * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed argument is not iterable.
	 */
	public static function flatten($dictionary) {
		if (InputValidator::is_iterable($dictionary) === false) {
			throw InvalidArgument::create(1, '$dictionary', 'iterable', gettype($dictionary));
		}

		$return = [];
		foreach ($dictionary as $key => $value) {
			$return[] = sprintf('%s: %s', $key, $value);
		}

		return $return;
	}

	/**
	 * Decompress an encoded body
	 *
	 * Implements gzip, compress and deflate. Guesses which it is by attempting
	 * to decode.
	 *
	 * @param string $data Compressed data in one of the above formats
	 * @return string Decompressed string
	 *
	 * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed argument is not a string.
	 */
	public static function decompress($data) {
		if (is_string($data) === false) {
			throw InvalidArgument::create(1, '$data', 'string', gettype($data));
		}

		if (trim($data) === '') {
			// Empty body does not need further processing.
			return $data;
		}

		$marker = substr($data, 0, 2);
		if (!isset(self::$magic_compression_headers[$marker])) {
			// Not actually compressed. Probably cURL ruining this for us.
			return $data;
		}

		if (function_exists('gzdecode')) {
			$decoded = @gzdecode($data);
			if ($decoded !== false) {
				return $decoded;
			}
		}

		if (function_exists('gzinflate')) {
			$decoded = @gzinflate($data);
			if ($decoded !== false) {
				return $decoded;
			}
		}

		$decoded = self::compatible_gzinflate($data);
		if ($decoded !== false) {
			return $decoded;
		}

		if (function_exists('gzuncompress')) {
			$decoded = @gzuncompress($data);
			if ($decoded !== false) {
				return $decoded;
			}
		}

		return $data;
	}

	/**
	 * Decompression of deflated string while staying compatible with the majority of servers.
	 *
	 * Certain Servers will return deflated data with headers which PHP's gzinflate()
	 * function cannot handle out of the box. The following function has been created from
	 * various snippets on the gzinflate() PHP documentation.
	 *
	 * Warning: Magic numbers within. Due to the potential different formats that the compressed
	 * data may be returned in, some "magic offsets" are needed to ensure proper decompression
	 * takes place. For a simple progmatic way to determine the magic offset in use, see:
	 * https://core.trac.wordpress.org/ticket/18273
	 *
	 * @since 1.6.0
	 * @link https://core.trac.wordpress.org/ticket/18273
	 * @link https://www.php.net/gzinflate#70875
	 * @link https://www.php.net/gzinflate#77336
	 *
	 * @param string $gz_data String to decompress.
	 * @return string|bool False on failure.
	 *
	 * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed argument is not a string.
	 */
	public static function compatible_gzinflate($gz_data) {
		if (is_string($gz_data) === false) {
			throw InvalidArgument::create(1, '$gz_data', 'string', gettype($gz_data));
		}

		if (trim($gz_data) === '') {
			return false;
		}

		// Compressed data might contain a full zlib header, if so strip it for
		// gzinflate()
		if (substr($gz_data, 0, 3) === "\x1f\x8b\x08") {
			$i   = 10;
			$flg = ord(substr($gz_data, 3, 1));
			if ($flg > 0) {
				if ($flg & 4) {
					list($xlen) = unpack('v', substr($gz_data, $i, 2));
					$i         += 2 + $xlen;
				}

				if ($flg & 8) {
					$i = strpos($gz_data, "\0", $i) + 1;
				}

				if ($flg & 16) {
					$i = strpos($gz_data, "\0", $i) + 1;
				}

				if ($flg & 2) {
					$i += 2;
				}
			}

			$decompressed = self::compatible_gzinflate(substr($gz_data, $i));
			if ($decompressed !== false) {
				return $decompressed;
			}
		}

		// If the data is Huffman Encoded, we must first strip the leading 2
		// byte Huffman marker for gzinflate()
		// The response is Huffman coded by many compressors such as
		// java.util.zip.Deflater, Ruby's Zlib::Deflate, and .NET's
		// System.IO.Compression.DeflateStream.
		//
		// See https://decompres.blogspot.com/ for a quick explanation of this
		// data type
		$huffman_encoded = false;

		// low nibble of first byte should be 0x08
		list(, $first_nibble) = unpack('h', $gz_data);

		// First 2 bytes should be divisible by 0x1F
		list(, $first_two_bytes) = unpack('n', $gz_data);

		if ($first_nibble === 0x08 && ($first_two_bytes % 0x1F) === 0) {
			$huffman_encoded = true;
		}

		if ($huffman_encoded) {
			$decompressed = @gzinflate(substr($gz_data, 2));
			if ($decompressed !== false) {
				return $decompressed;
			}
		}

		if (substr($gz_data, 0, 4) === "\x50\x4b\x03\x04") {
			// ZIP file format header
			// Offset 6: 2 bytes, General-purpose field
			// Offset 26: 2 bytes, filename length
			// Offset 28: 2 bytes, optional field length
			// Offset 30: Filename field, followed by optional field, followed
			// immediately by data
			list(, $general_purpose_flag) = unpack('v', substr($gz_data, 6, 2));

			// If the file has been compressed on the fly, 0x08 bit is set of
			// the general purpose field. We can use this to differentiate
			// between a compressed document, and a ZIP file
			$zip_compressed_on_the_fly = ((0x08 & $general_purpose_flag) === 0x08);

			if (!$zip_compressed_on_the_fly) {
				// Don't attempt to decode a compressed zip file
				return $gz_data;
			}

			// Determine the first byte of data, based on the above ZIP header
			// offsets:
			$first_file_start = array_sum(unpack('v2', substr($gz_data, 26, 4)));
			$decompressed     = @gzinflate(substr($gz_data, 30 + $first_file_start));
			if ($decompressed !== false) {
				return $decompressed;
			}

			return false;
		}

		// Finally fall back to straight gzinflate
		$decompressed = @gzinflate($gz_data);
		if ($decompressed !== false) {
			return $decompressed;
		}

		// Fallback for all above failing, not expected, but included for
		// debugging and preventing regressions and to track stats
		$decompressed = @gzinflate(substr($gz_data, 2));
		if ($decompressed !== false) {
			return $decompressed;
		}

		return false;
	}
}