enmi-conf.org: comparison wp/wp-includes/class-http.php

equal deleted inserted replaced

-:490d5cc509ed
+:cf61fcea0001
 <?php
 /**
-* Simple and uniform HTTP request API.
+* HTTP API: WP_Http class
-*
-* Standardizes the HTTP requests for WordPress. Handles cookies, gzip encoding and decoding, chunk
-* decoding, if HTTP 1.1 and various other difficult HTTP protocol implementations.
-*
-* @link https://core.trac.wordpress.org/ticket/4779 HTTP API Proposal
 *
 * @package WordPress
 * @subpackage HTTP
 * @since 2.7.0
 */
+if ( ! class_exists( 'Requests' ) ) {
+	require( ABSPATH . WPINC . '/class-requests.php' );
+	Requests::register_autoloader();
+	Requests::set_certificate_path( ABSPATH . WPINC . '/certificates/ca-bundle.crt' );
+}
 /**
-* WordPress HTTP Class for managing HTTP Transports and making HTTP requests.
+* Core class used for managing HTTP transports and making HTTP requests.
 *
 * This class is used to consistently make outgoing HTTP requests easy for developers
 * while still being compatible with the many PHP configurations under which
 * WordPress runs.
 *
 * Debugging includes several actions, which pass different variables for debugging the HTTP API.
 *
-* @package WordPress
-* @subpackage HTTP
 * @since 2.7.0
 */
 class WP_Http {
+	// Aliases for HTTP response codes.
+	const HTTP_CONTINUE                   = 100;
+	const SWITCHING_PROTOCOLS             = 101;
+	const PROCESSING                      = 102;
+	const OK                              = 200;
+	const CREATED                         = 201;
+	const ACCEPTED                        = 202;
+	const NON_AUTHORITATIVE_INFORMATION   = 203;
+	const NO_CONTENT                      = 204;
+	const RESET_CONTENT                   = 205;
+	const PARTIAL_CONTENT                 = 206;
+	const MULTI_STATUS                    = 207;
+	const IM_USED                         = 226;
+	const MULTIPLE_CHOICES                = 300;
+	const MOVED_PERMANENTLY               = 301;
+	const FOUND                           = 302;
+	const SEE_OTHER                       = 303;
+	const NOT_MODIFIED                    = 304;
+	const USE_PROXY                       = 305;
+	const RESERVED                        = 306;
+	const TEMPORARY_REDIRECT              = 307;
+	const PERMANENT_REDIRECT              = 308;
+	const BAD_REQUEST                     = 400;
+	const UNAUTHORIZED                    = 401;
+	const PAYMENT_REQUIRED                = 402;
+	const FORBIDDEN                       = 403;
+	const NOT_FOUND                       = 404;
+	const METHOD_NOT_ALLOWED              = 405;
+	const NOT_ACCEPTABLE                  = 406;
+	const PROXY_AUTHENTICATION_REQUIRED   = 407;
+	const REQUEST_TIMEOUT                 = 408;
+	const CONFLICT                        = 409;
+	const GONE                            = 410;
+	const LENGTH_REQUIRED                 = 411;
+	const PRECONDITION_FAILED             = 412;
+	const REQUEST_ENTITY_TOO_LARGE        = 413;
+	const REQUEST_URI_TOO_LONG            = 414;
+	const UNSUPPORTED_MEDIA_TYPE          = 415;
+	const REQUESTED_RANGE_NOT_SATISFIABLE = 416;
+	const EXPECTATION_FAILED              = 417;
+	const IM_A_TEAPOT                     = 418;
+	const MISDIRECTED_REQUEST             = 421;
+	const UNPROCESSABLE_ENTITY            = 422;
+	const LOCKED                          = 423;
+	const FAILED_DEPENDENCY               = 424;
+	const UPGRADE_REQUIRED                = 426;
+	const PRECONDITION_REQUIRED           = 428;
+	const TOO_MANY_REQUESTS               = 429;
+	const REQUEST_HEADER_FIELDS_TOO_LARGE = 431;
+	const UNAVAILABLE_FOR_LEGAL_REASONS   = 451;
+	const INTERNAL_SERVER_ERROR           = 500;
+	const NOT_IMPLEMENTED                 = 501;
+	const BAD_GATEWAY                     = 502;
+	const SERVICE_UNAVAILABLE             = 503;
+	const GATEWAY_TIMEOUT                 = 504;
+	const HTTP_VERSION_NOT_SUPPORTED      = 505;
+	const VARIANT_ALSO_NEGOTIATES         = 506;
+	const INSUFFICIENT_STORAGE            = 507;
+	const NOT_EXTENDED                    = 510;
+	const NETWORK_AUTHENTICATION_REQUIRED = 511;
 	/**
 	 * Send an HTTP request to a URI.
 	 *
 	 * Please note: The only URI that are supported in the HTTP Transport implementation
 	 * are the HTTP and HTTPS protocols.
 	 *
-	 * @access public
 	 * @since 2.7.0
 	 *
 	 * @param string       $url  The request URL.
 	 * @param string|array $args {
 	 *     Optional. Array or string of HTTP request arguments.
 	 *     @type int          $redirection         Number of allowed redirects. Not supported by all transports
 	 *                                             Default 5.
 	 *     @type string       $httpversion         Version of the HTTP protocol to use. Accepts '1.0' and '1.1'.
 	 *                                             Default '1.0'.
 	 *     @type string       $user-agent          User-agent value sent.
-	 *                                             Default WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' ).
+	 *                                             Default 'WordPress/' . get_bloginfo( 'version' ) . '; ' . get_bloginfo( 'url' ).
-	 *     @type bool         $reject_unsafe_urls  Whether to pass URLs through {@see wp_http_validate_url()}.
+	 *     @type bool         $reject_unsafe_urls  Whether to pass URLs through wp_http_validate_url().
 	 *                                             Default false.
 	 *     @type bool         $blocking            Whether the calling code requires the result of the request.
 	 *                                             If set to false, the request will be sent to the remote server,
 	 *                                             and processing returned to the calling code immediately, the caller
 	 *                                             will know if the request succeeded or failed, but will not receive
 	 * }
 	 * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'.
 	 *                        A WP_Error instance upon error.
 	 */
 	public function request( $url, $args = array() ) {
-		global $wp_version;
 		$defaults = array(
 			'method' => 'GET',
 			/**
-			 * Filter the timeout value for an HTTP request.
+			 * Filters the timeout value for an HTTP request.
 			 *
 			 * @since 2.7.0
 			 *
 			 * @param int $timeout_value Time in seconds until a request times out.
 			 *                           Default 5.
 			 */
 			'timeout' => apply_filters( 'http_request_timeout', 5 ),
 			/**
-			 * Filter the number of redirects allowed during an HTTP request.
+			 * Filters the number of redirects allowed during an HTTP request.
 			 *
 			 * @since 2.7.0
 			 *
 			 * @param int $redirect_count Number of redirects allowed. Default 5.
 			 */
 			'redirection' => apply_filters( 'http_request_redirection_count', 5 ),
 			/**
-			 * Filter the version of the HTTP protocol used in a request.
+			 * Filters the version of the HTTP protocol used in a request.
 			 *
 			 * @since 2.7.0
 			 *
 			 * @param string $version Version of HTTP used. Accepts '1.0' and '1.1'.
 			 *                        Default '1.0'.
 			 */
 			'httpversion' => apply_filters( 'http_request_version', '1.0' ),
 			/**
-			 * Filter the user agent value sent with an HTTP request.
+			 * Filters the user agent value sent with an HTTP request.
 			 *
 			 * @since 2.7.0
 			 *
 			 * @param string $user_agent WordPress user agent string.
 			 */
-			'user-agent' => apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' ) ),
+			'user-agent' => apply_filters( 'http_headers_useragent', 'WordPress/' . get_bloginfo( 'version' ) . '; ' . get_bloginfo( 'url' ) ),
 			/**
-			 * Filter whether to pass URLs through wp_http_validate_url() in an HTTP request.
+			 * Filters whether to pass URLs through wp_http_validate_url() in an HTTP request.
 			 *
 			 * @since 3.6.0
 			 *
 			 * @param bool $pass_url Whether to pass URLs through wp_http_validate_url().
 			 *                       Default false.
 		if ( isset($args['method']) && 'HEAD' == $args['method'] )
 			$defaults['redirection'] = 0;
 		$r = wp_parse_args( $args, $defaults );
 		/**
-		 * Filter the arguments used in an HTTP request.
+		 * Filters the arguments used in an HTTP request.
 		 *
 		 * @since 2.7.0
 		 *
 		 * @param array  $r   An array of HTTP request arguments.
 		 * @param string $url The request URL.
 		// The transports decrement this, store a copy of the original value for loop purposes.
 		if ( ! isset( $r['_redirection'] ) )
 			$r['_redirection'] = $r['redirection'];
 		/**
-		 * Filter whether to preempt an HTTP request's return.
+		 * Filters whether to preempt an HTTP request's return value.
 		 *
-		 * Returning a truthy value to the filter will short-circuit
+		 * Returning a non-false value from the filter will short-circuit the HTTP request and return
-		 * the HTTP request and return early with that value.
+		 * early with that value. A filter should return either:
+		 *
+		 *  - An array containing 'headers', 'body', 'response', 'cookies', and 'filename' elements
+		 *  - A WP_Error instance
+		 *  - boolean false (to avoid short-circuiting the response)
+		 *
+		 * Returning any other value may result in unexpected behaviour.
 		 *
 		 * @since 2.9.0
 		 *
-		 * @param bool   $preempt Whether to preempt an HTTP request return. Default false.
+		 * @param false|array|WP_Error $preempt Whether to preempt an HTTP request's return value. Default false.
-		 * @param array  $r       HTTP request arguments.
+		 * @param array               $r        HTTP request arguments.
-		 * @param string $url     The request URL.
+		 * @param string              $url      The request URL.
 		 */
 		$pre = apply_filters( 'pre_http_request', false, $r, $url );
 		if ( false !== $pre )
 			return $pre;
 		if ( function_exists( 'wp_kses_bad_protocol' ) ) {
-			if ( $r['reject_unsafe_urls'] )
+			if ( $r['reject_unsafe_urls'] ) {
 				$url = wp_http_validate_url( $url );
+			}
 			if ( $url ) {
 				$url = wp_kses_bad_protocol( $url, array( 'http', 'https', 'ssl' ) );
 			}
 		}
 		$arrURL = @parse_url( $url );
-		if ( empty( $url ) || empty( $arrURL['scheme'] ) )
+		if ( empty( $url ) || empty( $arrURL['scheme'] ) ) {
 			return new WP_Error('http_request_failed', __('A valid URL was not provided.'));
+		}
-		if ( $this->block_request( $url ) )
+		if ( $this->block_request( $url ) ) {
 			return new WP_Error( 'http_request_failed', __( 'User has blocked requests through HTTP.' ) );
+		}
-		/*
-		 * Determine if this is a https call and pass that on to the transport functions
+		// If we are streaming to a file but no filename was given drop it in the WP temp dir
-		 * so that we can blacklist the transports that do not support ssl verification
+		// and pick its name using the basename of the $url
+		if ( $r['stream'] ) {
+			if ( empty( $r['filename'] ) ) {
+				$r['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
+			$r['blocking'] = true;
+			if ( ! wp_is_writable( dirname( $r['filename'] ) ) ) {
+				return new WP_Error( 'http_request_failed', __( 'Destination directory for file streaming does not exist or is not writable.' ) );
+			}
+		}
+		if ( is_null( $r['headers'] ) ) {
+			$r['headers'] = array();
+		}
+		// WP allows passing in headers as a string, weirdly.
+		if ( ! is_array( $r['headers'] ) ) {
+			$processedHeaders = WP_Http::processHeaders( $r['headers'] );
+			$r['headers'] = $processedHeaders['headers'];
+		}
+		// Setup arguments
+		$headers = $r['headers'];
+		$data = $r['body'];
+		$type = $r['method'];
+		$options = array(
+			'timeout' => $r['timeout'],
+			'useragent' => $r['user-agent'],
+			'blocking' => $r['blocking'],
+			'hooks' => new WP_HTTP_Requests_Hooks( $url, $r ),
+		);
+		// Ensure redirects follow browser behaviour.
+		$options['hooks']->register( 'requests.before_redirect', array( get_class(), 'browser_redirect_compatibility' ) );
+		// Validate redirected URLs.
+		if ( function_exists( 'wp_kses_bad_protocol' ) && $r['reject_unsafe_urls'] ) {
+			$options['hooks']->register( 'requests.before_redirect', array( get_class(), 'validate_redirects' ) );
+		}
+		if ( $r['stream'] ) {
+			$options['filename'] = $r['filename'];
+		}
+		if ( empty( $r['redirection'] ) ) {
+			$options['follow_redirects'] = false;
+		} else {
+			$options['redirects'] = $r['redirection'];
+		}
+		// Use byte limit, if we can
+		if ( isset( $r['limit_response_size'] ) ) {
+			$options['max_bytes'] = $r['limit_response_size'];
+		}
+		// If we've got cookies, use and convert them to Requests_Cookie.
+		if ( ! empty( $r['cookies'] ) ) {
+			$options['cookies'] = WP_Http::normalize_cookies( $r['cookies'] );
+		}
+		// SSL certificate handling
+		if ( ! $r['sslverify'] ) {
+			$options['verify'] = false;
+			$options['verifyname'] = false;
+		} else {
+			$options['verify'] = $r['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
+		 *
+		 * @param bool $ssl_verify Whether to verify the SSL connection. Default true.
 		 */
-		$r['ssl'] = $arrURL['scheme'] == 'https' || $arrURL['scheme'] == 'ssl';
+		$options['verify'] = apply_filters( 'https_ssl_verify', $options['verify'] );
-		// Determine if this request is to OUR install of WordPress.
+		// Check for proxies.
-		$homeURL = parse_url( get_bloginfo( 'url' ) );
+		$proxy = new WP_HTTP_Proxy();
-		$r['local'] = 'localhost' == $arrURL['host'] || ( isset( $homeURL['host'] ) && $homeURL['host'] == $arrURL['host'] );
+		if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
-		unset( $homeURL );
+			$options['proxy'] = new Requests_Proxy_HTTP( $proxy->host() . ':' . $proxy->port() );
-		/*
+			if ( $proxy->use_authentication() ) {
-		 * If we are streaming to a file but no filename was given drop it in the WP temp dir
+				$options['proxy']->use_authentication = true;
-		 * and pick its name using the basename of the $url.
+				$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 = Requests::request( $url, $headers, $data, $type, $options );
+			// Convert the response into an array
+			$http_response = new WP_HTTP_Requests_Response( $requests_response, $r['filename'] );
+			$response = $http_response->to_array();
+			// Add the original object to the array.
+			$response['http_response'] = $http_response;
+		}
+		catch ( 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          $r        HTTP request arguments.
+		 * @param string         $url      The request URL.
 		 */
-		if ( $r['stream']  && empty( $r['filename'] ) ) {
+		do_action( 'http_api_debug', $response, 'response', 'Requests', $r, $url );
-			$r['filename'] = wp_unique_filename( get_temp_dir(), basename( $url ) );
+		if ( is_wp_error( $response ) ) {
-		}
+			return $response;
+		}
-		/*
-		 * Force some settings if we are streaming to a file and check for existence and perms
+		if ( ! $r['blocking'] ) {
-		 * of destination directory.
+			return array(
+				'headers' => array(),
+				'body' => '',
+				'response' => array(
+					'code' => false,
+					'message' => false,
+				),
+				'cookies' => array(),
+				'http_response' => null,
+			);
+		}
+		/**
+		 * Filters the HTTP API response immediately before the response is returned.
+		 *
+		 * @since 2.9.0
+		 *
+		 * @param array  $response HTTP response.
+		 * @param array  $r        HTTP request arguments.
+		 * @param string $url      The request URL.
 		 */
-		if ( $r['stream'] ) {
+		return apply_filters( 'http_response', $response, $r, $url );
-			$r['blocking'] = true;
+	}
-			if ( ! wp_is_writable( dirname( $r['filename'] ) ) )
-				return new WP_Error( 'http_request_failed', __( 'Destination directory for file streaming does not exist or is not writable.' ) );
+	/**
-		}
+	 * Normalizes cookies for using in Requests.
+	 *
-		if ( is_null( $r['headers'] ) )
+	 * @since 4.6.0
-			$r['headers'] = array();
+	 * @static
+	 *
-		if ( ! is_array( $r['headers'] ) ) {
+	 * @param array $cookies List of cookies to send with the request.
-			$processedHeaders = self::processHeaders( $r['headers'], $url );
+	 * @return Requests_Cookie_Jar Cookie holder object.
-			$r['headers'] = $processedHeaders['headers'];
+	 */
-		}
+	public static function normalize_cookies( $cookies ) {
+		$cookie_jar = new Requests_Cookie_Jar();
-		if ( isset( $r['headers']['User-Agent'] ) ) {
-			$r['user-agent'] = $r['headers']['User-Agent'];
+		foreach ( $cookies as $name => $value ) {
-			unset( $r['headers']['User-Agent'] );
+			if ( $value instanceof WP_Http_Cookie ) {
-		}
+				$cookie_jar[ $value->name ] = new Requests_Cookie( $value->name, $value->value, $value->get_attributes() );
+			} elseif ( is_scalar( $value ) ) {
-		if ( isset( $r['headers']['user-agent'] ) ) {
+				$cookie_jar[ $name ] = new Requests_Cookie( $name, $value );
-			$r['user-agent'] = $r['headers']['user-agent'];
+			}
-			unset( $r['headers']['user-agent'] );
+		}
-		}
+		return $cookie_jar;
-		if ( '1.1' == $r['httpversion'] && !isset( $r['headers']['connection'] ) ) {
+	}
-			$r['headers']['connection'] = 'close';
-		}
+	/**
+	 * Match redirect behaviour to browser handling.
-		// Construct Cookie: header if any cookies are set.
+	 *
-		self::buildCookieHeader( $r );
+	 * Changes 302 redirects from POST to GET to match browser handling. Per
+	 * RFC 7231, user agents can deviate from the strict reading of the
-		// Avoid issues where mbstring.func_overload is enabled.
+	 * specification for compatibility purposes.
-		mbstring_binary_safe_encoding();
+	 *
+	 * @since 4.6.0
-		if ( ! isset( $r['headers']['Accept-Encoding'] ) ) {
+	 * @static
-			if ( $encoding = WP_Http_Encoding::accept_encoding( $url, $r ) )
+	 *
-				$r['headers']['Accept-Encoding'] = $encoding;
+	 * @param string            $location URL to redirect to.
-		}
+	 * @param array             $headers  Headers for the redirect.
+	 * @param string|array      $data     Body to send with the request.
-		if ( ( ! is_null( $r['body'] ) && '' != $r['body'] ) || 'POST' == $r['method'] || 'PUT' == $r['method'] ) {
+	 * @param array             $options  Redirect request options.
-			if ( is_array( $r['body'] ) || is_object( $r['body'] ) ) {
+	 * @param Requests_Response $original Response object.
-				$r['body'] = http_build_query( $r['body'], null, '&' );
+	 */
+	public static function browser_redirect_compatibility( $location, $headers, $data, &$options, $original ) {
-				if ( ! isset( $r['headers']['Content-Type'] ) )
+		// Browser compat
-					$r['headers']['Content-Type'] = 'application/x-www-form-urlencoded; charset=' . get_option( 'blog_charset' );
+		if ( $original->status_code === 302 ) {
-			}
+			$options['type'] = Requests::GET;
+		}
-			if ( '' === $r['body'] )
+	}
-				$r['body'] = null;
+	/**
-			if ( ! isset( $r['headers']['Content-Length'] ) && ! isset( $r['headers']['content-length'] ) )
+	 * Validate redirected URLs.
-				$r['headers']['Content-Length'] = strlen( $r['body'] );
+	 *
-		}
+	 * @since 4.7.5
+	 *
-		$response = $this->_dispatch_request( $url, $r );
+	 * @throws Requests_Exception On unsuccessful URL validation
+	 * @param string $location URL to redirect to.
-		reset_mbstring_encoding();
+	 */
+	public static function validate_redirects( $location ) {
-		if ( is_wp_error( $response ) )
+		if ( ! wp_http_validate_url( $location ) ) {
-			return $response;
+			throw new Requests_Exception( __('A valid URL was not provided.'), 'wp_http.redirect_failed_validation' );
+		}
-		// Append cookies that were used in this request to the response
-		if ( ! empty( $r['cookies'] ) ) {
-			$cookies_set = wp_list_pluck( $response['cookies'], 'name' );
-			foreach ( $r['cookies'] as $cookie ) {
-				if ( ! in_array( $cookie->name, $cookies_set ) && $cookie->test( $url ) ) {
-					$response['cookies'][] = $cookie;
-				}
-			}
-		}
-		return $response;
 	}
 	/**
 	 * Tests which transports are capable of supporting the request.
 	 *
 	 * @since 3.2.0
-	 * @access private
 	 *
 	 * @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' );
 		/**
-		 * Filter which HTTP transports are available and in what order.
+		 * Filters which HTTP transports are available and in what order.
 		 *
 		 * @since 3.7.0
 		 *
-		 * @param array  $value Array of HTTP transports to check. Default array contains
+		 * @param array  $transports Array of HTTP transports to check. Default array contains
-		 *                      'curl', and 'streams', in that order.
+		 *                           'curl', and 'streams', in that order.
-		 * @param array  $args  HTTP request arguments.
+		 * @param array  $args       HTTP request arguments.
-		 * @param string $url   The URL to request.
+		 * @param string $url        The URL to request.
 		 */
-		$request_order = apply_filters( 'http_api_transports', array( 'curl', 'streams' ), $args, $url );
+		$request_order = apply_filters( 'http_api_transports', $transports, $args, $url );
 		// Loop over each transport on each HTTP request looking for one which will serve this request's needs.
 		foreach ( $request_order as $transport ) {
-			$class = 'WP_HTTP_' . $transport;
+			if ( in_array( $transport, $transports ) ) {
+				$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;
 	 * Also caches the transport instance to be used later.
 	 *
 	 * The order for requests is cURL, and then PHP Streams.
 	 *
 	 * @since 3.2.0
-	 * @access private
+	 *
+	 * @static
 	 *
 	 * @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
 	 */
 		if ( empty( $transports[$class] ) )
 			$transports[$class] = new $class;
 		$response = $transports[$class]->request( $url, $args );
-		/**
+		/** This action is documented in wp-includes/class-http.php */
-		 * 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          $args     HTTP request arguments.
-		 * @param string         $url      The request URL.
-		 */
 		do_action( 'http_api_debug', $response, 'response', $class, $args, $url );
 		if ( is_wp_error( $response ) )
 			return $response;
 		/**
-		 * Filter the HTTP API response immediately before the response is returned.
+		 * Filters the HTTP API response immediately before the response is returned.
 		 *
 		 * @since 2.9.0
 		 *
 		 * @param array  $response HTTP response.
 		 * @param array  $args     HTTP request arguments.
 	/**
 	 * Uses the POST HTTP method.
 	 *
 	 * Used for sending data that is expected to be in the body.
 	 *
-	 * @access public
 	 * @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
 	/**
 	 * Uses the GET HTTP method.
 	 *
 	 * Used for sending data that is expected to be in the body.
 	 *
-	 * @access public
 	 * @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
 	/**
 	 * Uses the HEAD HTTP method.
 	 *
 	 * Used for sending data that is expected to be in the body.
 	 *
-	 * @access public
 	 * @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
 	}
 	/**
 	 * Parses the responses and splits the parts into headers and body.
 	 *
-	 * @access public
 	 * @static
 	 * @since 2.7.0
 	 *
 	 * @param string $strResponse The full response string
 	 * @return array Array with 'headers' and 'body' keys.
 	 * Transform header string into an array.
 	 *
 	 * If an array is given 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.
 	 *
-	 * @access public
 	 * @static
 	 * @since 2.7.0
 	 *
 	 * @param string|array $headers
 	 * @param string $url The URL that was requested
 	 *
 	 * 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.
 	 *
-	 * @access public
+	 * @since 2.8.0
-	 * @version 2.8.0
 	 * @static
 	 *
 	 * @param array $r Full array of args passed into ::request()
 	 */
 	public static function buildCookieHeader( &$r ) {
 		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 ) );
+					$r['cookies'][ $name ] = new WP_Http_Cookie( array( 'name' => $name, 'value' => $value ) );
 			}
 			$cookies_header = '';
 			foreach ( (array) $r['cookies'] as $cookie ) {
 				$cookies_header .= $cookie->getHeaderValue() . '; ';
 	/**
 	 * Decodes chunk transfer-encoding, based off the HTTP 1.1 specification.
 	 *
 	 * Based off the HTTP http_encoding_dechunk function.
 	 *
-	 * @link http://tools.ietf.org/html/rfc2616#section-19.4.6 Process for chunked decoding.
+	 * @link https://tools.ietf.org/html/rfc2616#section-19.4.6 Process for chunked decoding.
 	 *
-	 * @access public
 	 * @since 2.7.0
 	 * @static
 	 *
 	 * @param string $body Body content
 	 * @return string Chunked decoded body on success or raw body on failure.
 	 *
 	 * 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 blog to make requests. The constant
+	 * 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
+	 *
+	 * @staticvar array|null $accessible_hosts
+	 * @staticvar array      $wildcard_regex
 	 *
 	 * @param string $uri URI of url.
 	 * @return bool True to block, false to allow.
 	 */
 	public function block_request($uri) {
 		$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'] ) ) {
 			/**
-			 * Filter whether to block local requests through the proxy.
+			 * Filters whether to block local requests through the proxy.
 			 *
 			 * @since 2.8.0
 			 *
 			 * @param bool $block Whether to block local requests through proxy.
 			 *                    Default false.
 		}
 		if ( !defined('WP_ACCESSIBLE_HOSTS') )
 			return true;
-		static $accessible_hosts;
+		static $accessible_hosts = null;
-		static $wildcard_regex = false;
+		static $wildcard_regex = array();
-		if ( null == $accessible_hosts ) {
+		if ( null === $accessible_hosts ) {
 			$accessible_hosts = preg_split('|,\s*|', WP_ACCESSIBLE_HOSTS);
 			if ( false !== strpos(WP_ACCESSIBLE_HOSTS, '*') ) {
 				$wildcard_regex = array();
 				foreach ( $accessible_hosts as $host )
 			return !in_array( $check['host'], $accessible_hosts ); //Inverse logic, If it's in the array, then we can't access it.
 	}
 	/**
-	 * A wrapper for PHP's parse_url() function that handles edgecases in < PHP 5.4.7
+	 * Used as a wrapper for PHP's parse_url() function that handles edgecases in < PHP 5.4.7.
 	 *
-	 * PHP 5.4.7 expanded parse_url()'s ability to handle non-absolute url's, including
+	 * @deprecated 4.4.0 Use wp_parse_url()
-	 * schemeless and relative url's with :// in the path, this works around those
+	 * @see wp_parse_url()
-	 * limitations providing a standard output on PHP 5.2~5.4+.
-	 *
-	 * Error suppression is used as prior to PHP 5.3.3, an E_WARNING would be generated
-	 * when URL parsing failed.
-	 *
-	 * @since 4.1.0
-	 * @access protected
 	 *
 	 * @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 ) {
-		$parts = @parse_url( $url );
+		_deprecated_function( __METHOD__, '4.4.0', 'wp_parse_url()' );
-		if ( ! $parts ) {
+		return wp_parse_url( $url );
-			// < PHP 5.4.7 compat, trouble with relative paths including a scheme break in the path
-			if ( '/' == $url[0] && false !== strpos( $url, '://' ) ) {
-				// Since we know it's a relative path, prefix with a scheme/host placeholder and try again
-				if ( ! $parts = @parse_url( 'placeholder://placeholder' . $url ) ) {
-					return $parts;
-				}
-				// Remove the placeholder values
-				unset( $parts['scheme'], $parts['host'] );
-			} else {
-				return $parts;
-			}
-		}
-		// < PHP 5.4.7 compat, doesn't detect schemeless URL's host field
-		if ( '//' == substr( $url, 0, 2 ) && ! isset( $parts['host'] ) ) {
-			list( $parts['host'], $slashless_path ) = explode( '/', substr( $parts['path'], 2 ), 2 );
-			$parts['path'] = "/{$slashless_path}";
-		}
-		return $parts;
 	}
 	/**
 	 * 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
 	 *
-	 * @access public
+	 * @static
+	 *
 	 * @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;
-		if ( ! $url_parts = WP_HTTP::parse_url( $url ) ) {
+		if ( ! $url_parts = wp_parse_url( $url ) ) {
 			return $maybe_relative_path;
 		}
-		if ( ! $relative_url_parts = WP_HTTP::parse_url( $maybe_relative_path ) ) {
+		if ( ! $relative_url_parts = wp_parse_url( $maybe_relative_path ) ) {
 			return $maybe_relative_path;
 		}
 		// Check for a scheme on the 'relative' url
 		if ( ! empty( $relative_url_parts['scheme'] ) ) {
 	/**
 	 * Handles HTTP Redirects and follows them if appropriate.
 	 *
 	 * @since 3.7.0
+	 * @static
 	 *
 	 * @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 false|object False if no redirect is present, a WP_HTTP or WP_Error result otherwise.
 		// 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 );
+		$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 ) ) )
 				$args['method'] = 'GET';
 	 * This function also detects the type of the IP address, returning either
 	 * '4' or '6' to represent a 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.
 	 *
-	 * @see http://home.deds.nl/~aeron/regex/ for IPv6 regex
+	 * @link http://home.deds.nl/~aeron/regex/ for IPv6 regex
 	 *
 	 * @since 3.7.0
 	 * @static
 	 *
 	 * @param string $maybe_ip A suspected IP address
 		return false;
 	}
 }
-/**
-* HTTP request method uses PHP Streams to retrieve the url.
-*
-* @since 2.7.0
-* @since 3.7.0 Combined with the fsockopen transport and switched to stream_socket_client().
-*/
-class WP_Http_Streams {
-	/**
-	 * Send a HTTP request to a URI using PHP Streams.
-	 *
-	 * @see WP_Http::request For default options descriptions.
-	 *
-	 * @since 2.7.0
-	 * @since 3.7.0 Combined with the fsockopen transport and switched to stream_socket_client().
-	 *
-	 * @access public
-	 * @param string $url The request URL.
-	 * @param string|array $args Optional. Override the defaults.
-	 * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
-	 */
-	public function request($url, $args = array()) {
-		$defaults = array(
-			'method' => 'GET', 'timeout' => 5,
-			'redirection' => 5, 'httpversion' => '1.0',
-			'blocking' => true,
-			'headers' => array(), 'body' => null, 'cookies' => array()
-		);
-		$r = wp_parse_args( $args, $defaults );
-		if ( isset( $r['headers']['User-Agent'] ) ) {
-			$r['user-agent'] = $r['headers']['User-Agent'];
-			unset( $r['headers']['User-Agent'] );
-		} elseif ( isset( $r['headers']['user-agent'] ) ) {
-			$r['user-agent'] = $r['headers']['user-agent'];
-			unset( $r['headers']['user-agent'] );
-		}
-		// Construct Cookie: header if any cookies are set.
-		WP_Http::buildCookieHeader( $r );
-		$arrURL = parse_url($url);
-		$connect_host = $arrURL['host'];
-		$secure_transport = ( $arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https' );
-		if ( ! isset( $arrURL['port'] ) ) {
-			if ( $arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https' ) {
-				$arrURL['port'] = 443;
-				$secure_transport = true;
-			} else {
-				$arrURL['port'] = 80;
-			}
-		}
-		// Always pass a Path, defaulting to the root in cases such as http://example.com
-		if ( ! isset( $arrURL['path'] ) ) {
-			$arrURL['path'] = '/';
-		}
-		if ( isset( $r['headers']['Host'] ) || isset( $r['headers']['host'] ) ) {
-			if ( isset( $r['headers']['Host'] ) )
-				$arrURL['host'] = $r['headers']['Host'];
-			else
-				$arrURL['host'] = $r['headers']['host'];
-			unset( $r['headers']['Host'], $r['headers']['host'] );
-		}
-		/*
-		 * Certain versions of PHP have issues with 'localhost' and IPv6, It attempts to connect
-		 * to ::1, which fails when the server is not set up for it. For compatibility, always
-		 * connect to the IPv4 address.
-		 */
-		if ( 'localhost' == strtolower( $connect_host ) )
-			$connect_host = '127.0.0.1';
-		$connect_host = $secure_transport ? 'ssl://' . $connect_host : 'tcp://' . $connect_host;
-		$is_local = isset( $r['local'] ) && $r['local'];
-		$ssl_verify = isset( $r['sslverify'] ) && $r['sslverify'];
-		if ( $is_local ) {
-			/**
-			 * Filter whether SSL should be verified for local requests.
-			 *
-			 * @since 2.8.0
-			 *
-			 * @param bool $ssl_verify Whether to verify the SSL connection. Default true.
-			 */
-			$ssl_verify = apply_filters( 'https_local_ssl_verify', $ssl_verify );
-		} elseif ( ! $is_local ) {
-			/**
-			 * Filter whether SSL should be verified for non-local requests.
-			 *
-			 * @since 2.8.0
-			 *
-			 * @param bool $ssl_verify Whether to verify the SSL connection. Default true.
-			 */
-			$ssl_verify = apply_filters( 'https_ssl_verify', $ssl_verify );
-		}
-		$proxy = new WP_HTTP_Proxy();
-		$context = stream_context_create( array(
-			'ssl' => array(
-				'verify_peer' => $ssl_verify,
-				//'CN_match' => $arrURL['host'], // This is handled by self::verify_ssl_certificate()
-				'capture_peer_cert' => $ssl_verify,
-				'SNI_enabled' => true,
-				'cafile' => $r['sslcertificates'],
-				'allow_self_signed' => ! $ssl_verify,
-			)
-		) );
-		$timeout = (int) floor( $r['timeout'] );
-		$utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000;
-		$connect_timeout = max( $timeout, 1 );
-		// Store error number.
-		$connection_error = null;
-		// Store error string.
-		$connection_error_str = null;
-		if ( !WP_DEBUG ) {
-			// In the event that the SSL connection fails, silence the many PHP Warnings.
-			if ( $secure_transport )
-				$error_reporting = error_reporting(0);
-			if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
-				$handle = @stream_socket_client( 'tcp://' . $proxy->host() . ':' . $proxy->port(), $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context );
-			else
-				$handle = @stream_socket_client( $connect_host . ':' . $arrURL['port'], $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context );
-			if ( $secure_transport )
-				error_reporting( $error_reporting );
-		} else {
-			if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
-				$handle = stream_socket_client( 'tcp://' . $proxy->host() . ':' . $proxy->port(), $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context );
-			else
-				$handle = stream_socket_client( $connect_host . ':' . $arrURL['port'], $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context );
-		}
-		if ( false === $handle ) {
-			// SSL connection failed due to expired/invalid cert, or, OpenSSL configuration is broken.
-			if ( $secure_transport && 0 === $connection_error && '' === $connection_error_str )
-				return new WP_Error( 'http_request_failed', __( 'The SSL certificate for the host could not be verified.' ) );
-			return new WP_Error('http_request_failed', $connection_error . ': ' . $connection_error_str );
-		}
-		// Verify that the SSL certificate is valid for this request.
-		if ( $secure_transport && $ssl_verify && ! $proxy->is_enabled() ) {
-			if ( ! self::verify_ssl_certificate( $handle, $arrURL['host'] ) )
-				return new WP_Error( 'http_request_failed', __( 'The SSL certificate for the host could not be verified.' ) );
-		}
-		stream_set_timeout( $handle, $timeout, $utimeout );
-		if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) //Some proxies require full URL in this field.
-			$requestPath = $url;
-		else
-			$requestPath = $arrURL['path'] . ( isset($arrURL['query']) ? '?' . $arrURL['query'] : '' );
-		$strHeaders = strtoupper($r['method']) . ' ' . $requestPath . ' HTTP/' . $r['httpversion'] . "\r\n";
-		$include_port_in_host_header = (
-			( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) ||
-			( 'http'  == $arrURL['scheme'] && 80  != $arrURL['port'] ) ||
-			( 'https' == $arrURL['scheme'] && 443 != $arrURL['port'] )
-		);
-		if ( $include_port_in_host_header ) {
-			$strHeaders .= 'Host: ' . $arrURL['host'] . ':' . $arrURL['port'] . "\r\n";
-		} else {
-			$strHeaders .= 'Host: ' . $arrURL['host'] . "\r\n";
-		}
-		if ( isset($r['user-agent']) )
-			$strHeaders .= 'User-agent: ' . $r['user-agent'] . "\r\n";
-		if ( is_array($r['headers']) ) {
-			foreach ( (array) $r['headers'] as $header => $headerValue )
-				$strHeaders .= $header . ': ' . $headerValue . "\r\n";
-		} else {
-			$strHeaders .= $r['headers'];
-		}
-		if ( $proxy->use_authentication() )
-			$strHeaders .= $proxy->authentication_header() . "\r\n";
-		$strHeaders .= "\r\n";
-		if ( ! is_null($r['body']) )
-			$strHeaders .= $r['body'];
-		fwrite($handle, $strHeaders);
-		if ( ! $r['blocking'] ) {
-			stream_set_blocking( $handle, 0 );
-			fclose( $handle );
-			return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
-		}
-		$strResponse = '';
-		$bodyStarted = false;
-		$keep_reading = true;
-		$block_size = 4096;
-		if ( isset( $r['limit_response_size'] ) )
-			$block_size = min( $block_size, $r['limit_response_size'] );
-		// If streaming to a file setup the file handle.
-		if ( $r['stream'] ) {
-			if ( ! WP_DEBUG )
-				$stream_handle = @fopen( $r['filename'], 'w+' );
-			else
-				$stream_handle = fopen( $r['filename'], 'w+' );
-			if ( ! $stream_handle )
-				return new WP_Error( 'http_request_failed', sprintf( __( 'Could not open handle for fopen() to %s' ), $r['filename'] ) );
-			$bytes_written = 0;
-			while ( ! feof($handle) && $keep_reading ) {
-				$block = fread( $handle, $block_size );
-				if ( ! $bodyStarted ) {
-					$strResponse .= $block;
-					if ( strpos( $strResponse, "\r\n\r\n" ) ) {
-						$process = WP_Http::processResponse( $strResponse );
-						$bodyStarted = true;
-						$block = $process['body'];
-						unset( $strResponse );
-						$process['body'] = '';
-					}
-				}
-				$this_block_size = strlen( $block );
-				if ( isset( $r['limit_response_size'] ) && ( $bytes_written + $this_block_size ) > $r['limit_response_size'] ) {
-					$this_block_size = ( $r['limit_response_size'] - $bytes_written );
-					$block = substr( $block, 0, $this_block_size );
-				}
-				$bytes_written_to_file = fwrite( $stream_handle, $block );
-				if ( $bytes_written_to_file != $this_block_size ) {
-					fclose( $handle );
-					fclose( $stream_handle );
-					return new WP_Error( 'http_request_failed', __( 'Failed to write request to temporary file.' ) );
-				}
-				$bytes_written += $bytes_written_to_file;
-				$keep_reading = !isset( $r['limit_response_size'] ) || $bytes_written < $r['limit_response_size'];
-			}
-			fclose( $stream_handle );
-		} else {
-			$header_length = 0;
-			while ( ! feof( $handle ) && $keep_reading ) {
-				$block = fread( $handle, $block_size );
-				$strResponse .= $block;
-				if ( ! $bodyStarted && strpos( $strResponse, "\r\n\r\n" ) ) {
-					$header_length = strpos( $strResponse, "\r\n\r\n" ) + 4;
-					$bodyStarted = true;
-				}
-				$keep_reading = ( ! $bodyStarted || !isset( $r['limit_response_size'] ) || strlen( $strResponse ) < ( $header_length + $r['limit_response_size'] ) );
-			}
-			$process = WP_Http::processResponse( $strResponse );
-			unset( $strResponse );
-		}
-		fclose( $handle );
-		$arrHeaders = WP_Http::processHeaders( $process['headers'], $url );
-		$response = array(
-			'headers' => $arrHeaders['headers'],
-			// Not yet processed.
-			'body' => null,
-			'response' => $arrHeaders['response'],
-			'cookies' => $arrHeaders['cookies'],
-			'filename' => $r['filename']
-		);
-		// Handle redirects.
-		if ( false !== ( $redirect_response = WP_HTTP::handle_redirects( $url, $r, $response ) ) )
-			return $redirect_response;
-		// If the body was chunk encoded, then decode it.
-		if ( ! empty( $process['body'] ) && isset( $arrHeaders['headers']['transfer-encoding'] ) && 'chunked' == $arrHeaders['headers']['transfer-encoding'] )
-			$process['body'] = WP_Http::chunkTransferDecode($process['body']);
-		if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($arrHeaders['headers']) )
-			$process['body'] = WP_Http_Encoding::decompress( $process['body'] );
-		if ( isset( $r['limit_response_size'] ) && strlen( $process['body'] ) > $r['limit_response_size'] )
-			$process['body'] = substr( $process['body'], 0, $r['limit_response_size'] );
-		$response['body'] = $process['body'];
-		return $response;
-	}
-	/**
-	 * Verifies the received SSL certificate against it's Common Names and subjectAltName fields
-	 *
-	 * PHP's SSL verifications only verify that it's a valid Certificate, it doesn't verify if
-	 * the certificate is valid for the hostname which was requested.
-	 * This function verifies the requested hostname against certificate's subjectAltName field,
-	 * if that is empty, or contains no DNS entries, a fallback to the Common Name field is used.
-	 *
-	 * IP Address support is included if the request is being made to an IP address.
-	 *
-	 * @since 3.7.0
-	 * @static
-	 *
-	 * @param stream $stream The PHP Stream which the SSL request is being made over
-	 * @param string $host The hostname being requested
-	 * @return bool If the cerficiate presented in $stream is valid for $host
-	 */
-	public static function verify_ssl_certificate( $stream, $host ) {
-		$context_options = stream_context_get_options( $stream );
-		if ( empty( $context_options['ssl']['peer_certificate'] ) )
-			return false;
-		$cert = openssl_x509_parse( $context_options['ssl']['peer_certificate'] );
-		if ( ! $cert )
-			return false;
-		/*
-		 * If the request is being made to an IP address, we'll validate against IP fields
-		 * in the cert (if they exist)
-		 */
-		$host_type = ( WP_HTTP::is_ip_address( $host ) ? 'ip' : 'dns' );
-		$certificate_hostnames = array();
-		if ( ! empty( $cert['extensions']['subjectAltName'] ) ) {
-			$match_against = preg_split( '/,\s*/', $cert['extensions']['subjectAltName'] );
-			foreach ( $match_against as $match ) {
-				list( $match_type, $match_host ) = explode( ':', $match );
-				if ( $host_type == strtolower( trim( $match_type ) ) ) // IP: or DNS:
-					$certificate_hostnames[] = strtolower( trim( $match_host ) );
-			}
-		} elseif ( !empty( $cert['subject']['CN'] ) ) {
-			// Only use the CN when the certificate includes no subjectAltName extension.
-			$certificate_hostnames[] = strtolower( $cert['subject']['CN'] );
-		}
-		// Exact hostname/IP matches.
-		if ( in_array( strtolower( $host ), $certificate_hostnames ) )
-			return true;
-		// IP's can't be wildcards, Stop processing.
-		if ( 'ip' == $host_type )
-			return false;
-		// Test to see if the domain is at least 2 deep for wildcard support.
-		if ( substr_count( $host, '.' ) < 2 )
-			return false;
-		// Wildcard subdomains certs (*.example.com) are valid for a.example.com but not a.b.example.com.
-		$wildcard_host = preg_replace( '/^[^.]+\./', '*.', $host );
-		return in_array( strtolower( $wildcard_host ), $certificate_hostnames );
-	}
-	/**
-	 * Whether this class can be used for retrieving a URL.
-	 *
-	 * @static
-	 * @access public
-	 * @since 2.7.0
-	 * @since 3.7.0 Combined with the fsockopen transport and switched to stream_socket_client().
-	 *
-	 * @return boolean False means this class can not be used, true means it can.
-	 */
-	public static function test( $args = array() ) {
-		if ( ! function_exists( 'stream_socket_client' ) )
-			return false;
-		$is_ssl = isset( $args['ssl'] ) && $args['ssl'];
-		if ( $is_ssl ) {
-			if ( ! extension_loaded( 'openssl' ) )
-				return false;
-			if ( ! function_exists( 'openssl_x509_parse' ) )
-				return false;
-		}
-		/**
-		 * Filter whether streams can be used as a transport for retrieving a URL.
-		 *
-		 * @since 2.7.0
-		 *
-		 * @param bool  $use_class Whether the class can be used. Default true.
-		 * @param array $args      Request arguments.
-		 */
-		return apply_filters( 'use_streams_transport', true, $args );
-	}
-}
-/**
-* Deprecated HTTP Transport method which used fsockopen.
-*
-* This class is not used, and is included for backwards compatibility only.
-* All code should make use of WP_HTTP directly through it's API.
-*
-* @see WP_HTTP::request
-*
-* @since 2.7.0
-* @deprecated 3.7.0 Please use WP_HTTP::request() directly
-*/
-class WP_HTTP_Fsockopen extends WP_HTTP_Streams {
-	// For backwards compatibility for users who are using the class directly.
-}
-/**
-* HTTP request method uses Curl extension to retrieve the url.
-*
-* Requires the Curl extension to be installed.
-*
-* @package WordPress
-* @subpackage HTTP
-* @since 2.7.0
-*/
-class WP_Http_Curl {
-	/**
-	 * Temporary header storage for during requests.
-	 *
-	 * @since 3.2.0
-	 * @access private
-	 * @var string
-	 */
-	private $headers = '';
-	/**
-	 * Temporary body storage for during requests.
-	 *
-	 * @since 3.6.0
-	 * @access private
-	 * @var string
-	 */
-	private $body = '';
-	/**
-	 * The maximum amount of data to receive from the remote server.
-	 *
-	 * @since 3.6.0
-	 * @access private
-	 * @var int
-	 */
-	private $max_body_length = false;
-	/**
-	 * The file resource used for streaming to file.
-	 *
-	 * @since 3.6.0
-	 * @access private
-	 * @var resource
-	 */
-	private $stream_handle = false;
-	/**
-	 * The total bytes written in the current request.
-	 *
-	 * @since 4.1.0
-	 * @access private
-	 * @var int
-	 */
-	private $bytes_written_total = 0;
-	/**
-	 * Send a HTTP request to a URI using cURL extension.
-	 *
-	 * @access public
-	 * @since 2.7.0
-	 *
-	 * @param string $url The request URL.
-	 * @param string|array $args Optional. Override the defaults.
-	 * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
-	 */
-	public function request($url, $args = array()) {
-		$defaults = array(
-			'method' => 'GET', 'timeout' => 5,
-			'redirection' => 5, 'httpversion' => '1.0',
-			'blocking' => true,
-			'headers' => array(), 'body' => null, 'cookies' => array()
-		);
-		$r = wp_parse_args( $args, $defaults );
-		if ( isset( $r['headers']['User-Agent'] ) ) {
-			$r['user-agent'] = $r['headers']['User-Agent'];
-			unset( $r['headers']['User-Agent'] );
-		} elseif ( isset( $r['headers']['user-agent'] ) ) {
-			$r['user-agent'] = $r['headers']['user-agent'];
-			unset( $r['headers']['user-agent'] );
-		}
-		// Construct Cookie: header if any cookies are set.
-		WP_Http::buildCookieHeader( $r );
-		$handle = curl_init();
-		// cURL offers really easy proxy support.
-		$proxy = new WP_HTTP_Proxy();
-		if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
-			curl_setopt( $handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP );
-			curl_setopt( $handle, CURLOPT_PROXY, $proxy->host() );
-			curl_setopt( $handle, CURLOPT_PROXYPORT, $proxy->port() );
-			if ( $proxy->use_authentication() ) {
-				curl_setopt( $handle, CURLOPT_PROXYAUTH, CURLAUTH_ANY );
-				curl_setopt( $handle, CURLOPT_PROXYUSERPWD, $proxy->authentication() );
-			}
-		}
-		$is_local = isset($r['local']) && $r['local'];
-		$ssl_verify = isset($r['sslverify']) && $r['sslverify'];
-		if ( $is_local ) {
-			/** This filter is documented in wp-includes/class-http.php */
-			$ssl_verify = apply_filters( 'https_local_ssl_verify', $ssl_verify );
-		} elseif ( ! $is_local ) {
-			/** This filter is documented in wp-includes/class-http.php */
-			$ssl_verify = apply_filters( 'https_ssl_verify', $ssl_verify );
-		}
-		/*
-		 * CURLOPT_TIMEOUT and CURLOPT_CONNECTTIMEOUT expect integers. Have to use ceil since.
-		 * a value of 0 will allow an unlimited timeout.
-		 */
-		$timeout = (int) ceil( $r['timeout'] );
-		curl_setopt( $handle, CURLOPT_CONNECTTIMEOUT, $timeout );
-		curl_setopt( $handle, CURLOPT_TIMEOUT, $timeout );
-		curl_setopt( $handle, CURLOPT_URL, $url);
-		curl_setopt( $handle, CURLOPT_RETURNTRANSFER, true );
-		curl_setopt( $handle, CURLOPT_SSL_VERIFYHOST, ( $ssl_verify === true ) ? 2 : false );
-		curl_setopt( $handle, CURLOPT_SSL_VERIFYPEER, $ssl_verify );
-		curl_setopt( $handle, CURLOPT_CAINFO, $r['sslcertificates'] );
-		curl_setopt( $handle, CURLOPT_USERAGENT, $r['user-agent'] );
-		/*
-		 * The option doesn't work with safe mode or when open_basedir is set, and there's
-		 * a bug #17490 with redirected POST requests, so handle redirections outside Curl.
-		 */
-		curl_setopt( $handle, CURLOPT_FOLLOWLOCATION, false );
-		if ( defined( 'CURLOPT_PROTOCOLS' ) ) // PHP 5.2.10 / cURL 7.19.4
-			curl_setopt( $handle, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS );
-		switch ( $r['method'] ) {
-			case 'HEAD':
-				curl_setopt( $handle, CURLOPT_NOBODY, true );
-				break;
-			case 'POST':
-				curl_setopt( $handle, CURLOPT_POST, true );
-				curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] );
-				break;
-			case 'PUT':
-				curl_setopt( $handle, CURLOPT_CUSTOMREQUEST, 'PUT' );
-				curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] );
-				break;
-			default:
-				curl_setopt( $handle, CURLOPT_CUSTOMREQUEST, $r['method'] );
-				if ( ! is_null( $r['body'] ) )
-					curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] );
-				break;
-		}
-		if ( true === $r['blocking'] ) {
-			curl_setopt( $handle, CURLOPT_HEADERFUNCTION, array( $this, 'stream_headers' ) );
-			curl_setopt( $handle, CURLOPT_WRITEFUNCTION, array( $this, 'stream_body' ) );
-		}
-		curl_setopt( $handle, CURLOPT_HEADER, false );
-		if ( isset( $r['limit_response_size'] ) )
-			$this->max_body_length = intval( $r['limit_response_size'] );
-		else
-			$this->max_body_length = false;
-		// If streaming to a file open a file handle, and setup our curl streaming handler.
-		if ( $r['stream'] ) {
-			if ( ! WP_DEBUG )
-				$this->stream_handle = @fopen( $r['filename'], 'w+' );
-			else
-				$this->stream_handle = fopen( $r['filename'], 'w+' );
-			if ( ! $this->stream_handle )
-				return new WP_Error( 'http_request_failed', sprintf( __( 'Could not open handle for fopen() to %s' ), $r['filename'] ) );
-		} else {
-			$this->stream_handle = false;
-		}
-		if ( !empty( $r['headers'] ) ) {
-			// cURL expects full header strings in each element.
-			$headers = array();
-			foreach ( $r['headers'] as $name => $value ) {
-				$headers[] = "{$name}: $value";
-			}
-			curl_setopt( $handle, CURLOPT_HTTPHEADER, $headers );
-		}
-		if ( $r['httpversion'] == '1.0' )
-			curl_setopt( $handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0 );
-		else
-			curl_setopt( $handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1 );
-		/**
-		 * Fires before the cURL request is executed.
-		 *
-		 * Cookies are not currently handled by the HTTP API. This action allows
-		 * plugins to handle cookies themselves.
-		 *
-		 * @since 2.8.0
-		 *
-		 * @param resource &$handle The cURL handle returned by curl_init().
-		 * @param array    $r       The HTTP request arguments.
-		 * @param string   $url     The request URL.
-		 */
-		do_action_ref_array( 'http_api_curl', array( &$handle, $r, $url ) );
-		// We don't need to return the body, so don't. Just execute request and return.
-		if ( ! $r['blocking'] ) {
-			curl_exec( $handle );
-			if ( $curl_error = curl_error( $handle ) ) {
-				curl_close( $handle );
-				return new WP_Error( 'http_request_failed', $curl_error );
-			}
-			if ( in_array( curl_getinfo( $handle, CURLINFO_HTTP_CODE ), array( 301, 302 ) ) ) {
-				curl_close( $handle );
-				return new WP_Error( 'http_request_failed', __( 'Too many redirects.' ) );
-			}
-			curl_close( $handle );
-			return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
-		}
-		curl_exec( $handle );
-		$theHeaders = WP_Http::processHeaders( $this->headers, $url );
-		$theBody = $this->body;
-		$bytes_written_total = $this->bytes_written_total;
-		$this->headers = '';
-		$this->body = '';
-		$this->bytes_written_total = 0;
-		$curl_error = curl_errno( $handle );
-		// If an error occurred, or, no response.
-		if ( $curl_error || ( 0 == strlen( $theBody ) && empty( $theHeaders['headers'] ) ) ) {
-			if ( CURLE_WRITE_ERROR /* 23 */ == $curl_error ) {
-				if ( ! $this->max_body_length || $this->max_body_length != $bytes_written_total ) {
-					if ( $r['stream'] ) {
-						curl_close( $handle );
-						fclose( $this->stream_handle );
-						return new WP_Error( 'http_request_failed', __( 'Failed to write request to temporary file.' ) );
-					} else {
-						curl_close( $handle );
-						return new WP_Error( 'http_request_failed', curl_error( $handle ) );
-					}
-				}
-			} else {
-				if ( $curl_error = curl_error( $handle ) ) {
-					curl_close( $handle );
-					return new WP_Error( 'http_request_failed', $curl_error );
-				}
-			}
-			if ( in_array( curl_getinfo( $handle, CURLINFO_HTTP_CODE ), array( 301, 302 ) ) ) {
-				curl_close( $handle );
-				return new WP_Error( 'http_request_failed', __( 'Too many redirects.' ) );
-			}
-		}
-		curl_close( $handle );
-		if ( $r['stream'] )
-			fclose( $this->stream_handle );
-		$response = array(
-			'headers' => $theHeaders['headers'],
-			'body' => null,
-			'response' => $theHeaders['response'],
-			'cookies' => $theHeaders['cookies'],
-			'filename' => $r['filename']
-		);
-		// Handle redirects.
-		if ( false !== ( $redirect_response = WP_HTTP::handle_redirects( $url, $r, $response ) ) )
-			return $redirect_response;
-		if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($theHeaders['headers']) )
-			$theBody = WP_Http_Encoding::decompress( $theBody );
-		$response['body'] = $theBody;
-		return $response;
-	}
-	/**
-	 * Grab the headers of the cURL request
-	 *
-	 * Each header is sent individually to this callback, so we append to the $header property for temporary storage
-	 *
-	 * @since 3.2.0
-	 * @access private
-	 * @return int
-	 */
-	private function stream_headers( $handle, $headers ) {
-		$this->headers .= $headers;
-		return strlen( $headers );
-	}
-	/**
-	 * Grab the body of the cURL request
-	 *
-	 * The contents of the document are passed in chunks, so we append to the $body property for temporary storage.
-	 * Returning a length shorter than the length of $data passed in will cause cURL to abort the request with CURLE_WRITE_ERROR
-	 *
-	 * @since 3.6.0
-	 * @access private
-	 * @return int
-	 */
-	private function stream_body( $handle, $data ) {
-		$data_length = strlen( $data );
-		if ( $this->max_body_length && ( $this->bytes_written_total + $data_length ) > $this->max_body_length ) {
-			$data_length = ( $this->max_body_length - $this->bytes_written_total );
-			$data = substr( $data, 0, $data_length );
-		}
-		if ( $this->stream_handle ) {
-			$bytes_written = fwrite( $this->stream_handle, $data );
-		} else {
-			$this->body .= $data;
-			$bytes_written = $data_length;
-		}
-		$this->bytes_written_total += $bytes_written;
-		// Upon event of this function returning less than strlen( $data ) curl will error with CURLE_WRITE_ERROR.
-		return $bytes_written;
-	}
-	/**
-	 * Whether this class can be used for retrieving an URL.
-	 *
-	 * @static
-	 * @since 2.7.0
-	 *
-	 * @return boolean False means this class can not be used, true means it can.
-	 */
-	public static function test( $args = array() ) {
-		if ( ! function_exists( 'curl_init' ) || ! function_exists( 'curl_exec' ) )
-			return false;
-		$is_ssl = isset( $args['ssl'] ) && $args['ssl'];
-		if ( $is_ssl ) {
-			$curl_version = curl_version();
-			// Check whether this cURL version support SSL requests.
-			if ( ! (CURL_VERSION_SSL & $curl_version['features']) )
-				return false;
-		}
-		/**
-		 * Filter whether cURL can be used as a transport for retrieving a URL.
-		 *
-		 * @since 2.7.0
-		 *
-		 * @param bool  $use_class Whether the class can be used. Default true.
-		 * @param array $args      An array of request arguments.
-		 */
-		return apply_filters( 'use_curl_transport', true, $args );
-	}
-}
-/**
-* Adds Proxy support to the WordPress HTTP API.
-*
-* There are caveats to proxy support. It requires that defines be made in the wp-config.php file to
-* enable proxy support. There are also a few filters that plugins can hook into for some of the
-* constants.
-*
-* Please note that only BASIC authentication is supported by most transports.
-* cURL MAY support more methods (such as NTLM authentication) depending on your environment.
-*
-* The constants are as follows:
-* <ol>
-* <li>WP_PROXY_HOST - Enable proxy support and host for connecting.</li>
-* <li>WP_PROXY_PORT - Proxy port for connection. No default, must be defined.</li>
-* <li>WP_PROXY_USERNAME - Proxy username, if it requires authentication.</li>
-* <li>WP_PROXY_PASSWORD - Proxy password, if it requires authentication.</li>
-* <li>WP_PROXY_BYPASS_HOSTS - Will prevent the hosts in this list from going through the proxy.
-* You do not need to have localhost and the blog host in this list, because they will not be passed
-* through the proxy. The list should be presented in a comma separated list, wildcards using * are supported, eg. *.wordpress.org</li>
-* </ol>
-*
-* An example can be as seen below.
-*
-*     define('WP_PROXY_HOST', '192.168.84.101');
-*     define('WP_PROXY_PORT', '8080');
-*     define('WP_PROXY_BYPASS_HOSTS', 'localhost, www.example.com, *.wordpress.org');
-*
-* @link https://core.trac.wordpress.org/ticket/4011 Proxy support ticket in WordPress.
-* @link https://core.trac.wordpress.org/ticket/14636 Allow wildcard domains in WP_PROXY_BYPASS_HOSTS
-* @since 2.8.0
-*/
-class WP_HTTP_Proxy {
-	/**
-	 * Whether proxy connection should be used.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @use WP_PROXY_HOST
-	 * @use WP_PROXY_PORT
-	 *
-	 * @return bool
-	 */
-	public function is_enabled() {
-		return defined('WP_PROXY_HOST') && defined('WP_PROXY_PORT');
-	}
-	/**
-	 * Whether authentication should be used.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @use WP_PROXY_USERNAME
-	 * @use WP_PROXY_PASSWORD
-	 *
-	 * @return bool
-	 */
-	public function use_authentication() {
-		return defined('WP_PROXY_USERNAME') && defined('WP_PROXY_PASSWORD');
-	}
-	/**
-	 * Retrieve the host for the proxy server.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @return string
-	 */
-	public function host() {
-		if ( defined('WP_PROXY_HOST') )
-			return WP_PROXY_HOST;
-		return '';
-	}
-	/**
-	 * Retrieve the port for the proxy server.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @return string
-	 */
-	public function port() {
-		if ( defined('WP_PROXY_PORT') )
-			return WP_PROXY_PORT;
-		return '';
-	}
-	/**
-	 * Retrieve the username for proxy authentication.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @return string
-	 */
-	public function username() {
-		if ( defined('WP_PROXY_USERNAME') )
-			return WP_PROXY_USERNAME;
-		return '';
-	}
-	/**
-	 * Retrieve the password for proxy authentication.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @return string
-	 */
-	public function password() {
-		if ( defined('WP_PROXY_PASSWORD') )
-			return WP_PROXY_PASSWORD;
-		return '';
-	}
-	/**
-	 * Retrieve authentication string for proxy authentication.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @return string
-	 */
-	public function authentication() {
-		return $this->username() . ':' . $this->password();
-	}
-	/**
-	 * Retrieve header string for proxy authentication.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @return string
-	 */
-	public function authentication_header() {
-		return 'Proxy-Authorization: Basic ' . base64_encode( $this->authentication() );
-	}
-	/**
-	 * Whether URL should be sent through the proxy server.
-	 *
-	 * We want to keep localhost and the blog URL from being sent through the proxy server, because
-	 * some proxies can not handle this. We also have the constant available for defining other
-	 * hosts that won't be sent through the proxy.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @param string $uri URI to check.
-	 * @return bool True, to send through the proxy and false if, the proxy should not be used.
-	 */
-	public function send_through_proxy( $uri ) {
-		/*
-		 * parse_url() only handles http, https type URLs, and will emit E_WARNING on failure.
-		 * This will be displayed on blogs, which is not reasonable.
-		 */
-		$check = @parse_url($uri);
-		// Malformed URL, can not process, but this could mean ssl, so let through anyway.
-		if ( $check === false )
-			return true;
-		$home = parse_url( get_option('siteurl') );
-		/**
-		 * Filter whether to preempt sending the request through the proxy server.
-		 *
-		 * Returning false will bypass the proxy; returning true will send
-		 * the request through the proxy. Returning null bypasses the filter.
-		 *
-		 * @since 3.5.0
-		 *
-		 * @param null   $override Whether to override the request result. Default null.
-		 * @param string $uri      URL to check.
-		 * @param array  $check    Associative array result of parsing the URI.
-		 * @param array  $home     Associative array result of parsing the site URL.
-		 */
-		$result = apply_filters( 'pre_http_send_through_proxy', null, $uri, $check, $home );
-		if ( ! is_null( $result ) )
-			return $result;
-		if ( 'localhost' == $check['host'] || ( isset( $home['host'] ) && $home['host'] == $check['host'] ) )
-			return false;
-		if ( !defined('WP_PROXY_BYPASS_HOSTS') )
-			return true;
-		static $bypass_hosts;
-		static $wildcard_regex = false;
-		if ( null == $bypass_hosts ) {
-			$bypass_hosts = preg_split('|,\s*|', WP_PROXY_BYPASS_HOSTS);
-			if ( false !== strpos(WP_PROXY_BYPASS_HOSTS, '*') ) {
-				$wildcard_regex = array();
-				foreach ( $bypass_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'], $bypass_hosts );
-	}
-}
-/**
-* Internal representation of a single cookie.
-*
-* Returned cookies are represented using this class, and when cookies are set, if they are not
-* already a WP_Http_Cookie() object, then they are turned into one.
-*
-* @todo The WordPress convention is to use underscores instead of camelCase for function and method
-* names. Need to switch to use underscores instead for the methods.
-*
-* @package WordPress
-* @subpackage HTTP
-* @since 2.8.0
-*/
-class WP_Http_Cookie {
-	/**
-	 * Cookie name.
-	 *
-	 * @since 2.8.0
-	 * @var string
-	 */
-	public $name;
-	/**
-	 * Cookie value.
-	 *
-	 * @since 2.8.0
-	 * @var string
-	 */
-	public $value;
-	/**
-	 * When the cookie expires.
-	 *
-	 * @since 2.8.0
-	 * @var string
-	 */
-	public $expires;
-	/**
-	 * Cookie URL path.
-	 *
-	 * @since 2.8.0
-	 * @var string
-	 */
-	public $path;
-	/**
-	 * Cookie Domain.
-	 *
-	 * @since 2.8.0
-	 * @var string
-	 */
-	public $domain;
-	/**
-	 * Sets up this cookie object.
-	 *
-	 * The parameter $data should be either an associative array containing the indices names below
-	 * or a header string detailing it.
-	 *
-	 * @since 2.8.0
-	 * @access public
-	 *
-	 * @param string|array $data {
-	 *     Raw cookie data as header string or data array.
-	 *
-	 *     @type string     $name    Cookie name.
-	 *     @type mixed      $value   Value. Should NOT already be urlencoded.
-	 *     @type string|int $expires Optional. Unix timestamp or formatted date. Default null.
-	 *     @type string     $path    Optional. Path. Default '/'.
-	 *     @type string     $domain  Optional. Domain. Default host of parsed $requested_url.
-	 *     @type int        $port    Optional. Port. Default null.
-	 * }
-	 * @param string       $requested_url The URL which the cookie was set on, used for default $domain
-	 *                                    and $port values.
-	 */
-	public function __construct( $data, $requested_url = '' ) {
-		if ( $requested_url )
-			$arrURL = @parse_url( $requested_url );
-		if ( isset( $arrURL['host'] ) )
-			$this->domain = $arrURL['host'];
-		$this->path = isset( $arrURL['path'] ) ? $arrURL['path'] : '/';
-		if (  '/' != substr( $this->path, -1 ) )
-			$this->path = dirname( $this->path ) . '/';
-		if ( is_string( $data ) ) {
-			// Assume it's a header string direct from a previous request.
-			$pairs = explode( ';', $data );
-			// Special handling for first pair; name=value. Also be careful of "=" in value.
-			$name  = trim( substr( $pairs[0], 0, strpos( $pairs[0], '=' ) ) );
-			$value = substr( $pairs[0], strpos( $pairs[0], '=' ) + 1 );
-			$this->name  = $name;
-			$this->value = urldecode( $value );
-			// Removes name=value from items.
-			array_shift( $pairs );
-			// Set everything else as a property.
-			foreach ( $pairs as $pair ) {
-				$pair = rtrim($pair);
-				// Handle the cookie ending in ; which results in a empty final pair.
-				if ( empty($pair) )
-					continue;
-				list( $key, $val ) = strpos( $pair, '=' ) ? explode( '=', $pair ) : array( $pair, '' );
-				$key = strtolower( trim( $key ) );
-				if ( 'expires' == $key )
-					$val = strtotime( $val );
-				$this->$key = $val;
-			}
-		} else {
-			if ( !isset( $data['name'] ) )
-				return;
-			// Set properties based directly on parameters.
-			foreach ( array( 'name', 'value', 'path', 'domain', 'port' ) as $field ) {
-				if ( isset( $data[ $field ] ) )
-					$this->$field = $data[ $field ];
-			}
-			if ( isset( $data['expires'] ) )
-				$this->expires = is_int( $data['expires'] ) ? $data['expires'] : strtotime( $data['expires'] );
-			else
-				$this->expires = null;
-		}
-	}
-	/**
-	 * Confirms that it's OK to send this cookie to the URL checked against.
-	 *
-	 * Decision is based on RFC 2109/2965, so look there for details on validity.
-	 *
-	 * @access public
-	 * @since 2.8.0
-	 *
-	 * @param string $url URL you intend to send this cookie to
-	 * @return boolean true if allowed, false otherwise.
-	 */
-	public function test( $url ) {
-		if ( is_null( $this->name ) )
-			return false;
-		// Expires - if expired then nothing else matters.
-		if ( isset( $this->expires ) && time() > $this->expires )
-			return false;
-		// Get details on the URL we're thinking about sending to.
-		$url = parse_url( $url );
-		$url['port'] = isset( $url['port'] ) ? $url['port'] : ( 'https' == $url['scheme'] ? 443 : 80 );
-		$url['path'] = isset( $url['path'] ) ? $url['path'] : '/';
-		// Values to use for comparison against the URL.
-		$path   = isset( $this->path )   ? $this->path   : '/';
-		$port   = isset( $this->port )   ? $this->port   : null;
-		$domain = isset( $this->domain ) ? strtolower( $this->domain ) : strtolower( $url['host'] );
-		if ( false === stripos( $domain, '.' ) )
-			$domain .= '.local';
-		// Host - very basic check that the request URL ends with the domain restriction (minus leading dot).
-		$domain = substr( $domain, 0, 1 ) == '.' ? substr( $domain, 1 ) : $domain;
-		if ( substr( $url['host'], -strlen( $domain ) ) != $domain )
-			return false;
-		// Port - supports "port-lists" in the format: "80,8000,8080".
-		if ( !empty( $port ) && !in_array( $url['port'], explode( ',', $port) ) )
-			return false;
-		// Path - request path must start with path restriction.
-		if ( substr( $url['path'], 0, strlen( $path ) ) != $path )
-			return false;
-		return true;
-	}
-	/**
-	 * Convert cookie name and value back to header string.
-	 *
-	 * @access public
-	 * @since 2.8.0
-	 *
-	 * @return string Header encoded cookie name and value.
-	 */
-	public function getHeaderValue() {
-		if ( ! isset( $this->name ) || ! isset( $this->value ) )
-			return '';
-		/**
-		 * Filter the header-encoded cookie value.
-		 *
-		 * @since 3.4.0
-		 *
-		 * @param string $value The cookie value.
-		 * @param string $name  The cookie name.
-		 */
-		return $this->name . '=' . apply_filters( 'wp_http_cookie_value', $this->value, $this->name );
-	}
-	/**
-	 * Retrieve cookie header for usage in the rest of the WordPress HTTP API.
-	 *
-	 * @access public
-	 * @since 2.8.0
-	 *
-	 * @return string
-	 */
-	public function getFullHeader() {
-		return 'Cookie: ' . $this->getHeaderValue();
-	}
-}
-/**
-* Implementation for deflate and gzip transfer encodings.
-*
-* Includes RFC 1950, RFC 1951, and RFC 1952.
-*
-* @since 2.8.0
-* @package WordPress
-* @subpackage HTTP
-*/
-class WP_Http_Encoding {
-	/**
-	 * Compress raw string using the deflate format.
-	 *
-	 * Supports the RFC 1951 standard.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @param string $raw String to compress.
-	 * @param int $level Optional, default is 9. Compression level, 9 is highest.
-	 * @param string $supports Optional, not used. When implemented it will choose the right compression based on what the server supports.
-	 * @return string|false False on failure.
-	 */
-	public static function compress( $raw, $level = 9, $supports = null ) {
-		return gzdeflate( $raw, $level );
-	}
-	/**
-	 * Decompression of deflated string.
-	 *
-	 * Will attempt to decompress using the RFC 1950 standard, and if that fails
-	 * then the RFC 1951 standard deflate will be attempted. Finally, the RFC
-	 * 1952 standard gzip decode will be attempted. If all fail, then the
-	 * original compressed string will be returned.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @param string $compressed String to decompress.
-	 * @param int $length The optional length of the compressed data.
-	 * @return string|bool False on failure.
-	 */
-	public static function decompress( $compressed, $length = null ) {
-		if ( empty($compressed) )
-			return $compressed;
-		if ( false !== ( $decompressed = @gzinflate( $compressed ) ) )
-			return $decompressed;
-		if ( false !== ( $decompressed = self::compatible_gzinflate( $compressed ) ) )
-			return $decompressed;
-		if ( false !== ( $decompressed = @gzuncompress( $compressed ) ) )
-			return $decompressed;
-		if ( function_exists('gzdecode') ) {
-			$decompressed = @gzdecode( $compressed );
-			if ( false !== $decompressed )
-				return $decompressed;
-		}
-		return $compressed;
-	}
-	/**
-	 * 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 2.8.1
-	 * @link https://core.trac.wordpress.org/ticket/18273
-	 * @link http://au2.php.net/manual/en/function.gzinflate.php#70875
-	 * @link http://au2.php.net/manual/en/function.gzinflate.php#77336
-	 *
-	 * @param string $gzData String to decompress.
-	 * @return string|bool False on failure.
-	 */
-	public static function compatible_gzinflate($gzData) {
-		// Compressed data might contain a full header, if so strip it for gzinflate().
-		if ( substr($gzData, 0, 3) == "\x1f\x8b\x08" ) {
-			$i = 10;
-			$flg = ord( substr($gzData, 3, 1) );
-			if ( $flg > 0 ) {
-				if ( $flg & 4 ) {
-					list($xlen) = unpack('v', substr($gzData, $i, 2) );
-					$i = $i + 2 + $xlen;
-				}
-				if ( $flg & 8 )
-					$i = strpos($gzData, "\0", $i) + 1;
-				if ( $flg & 16 )
-					$i = strpos($gzData, "\0", $i) + 1;
-				if ( $flg & 2 )
-					$i = $i + 2;
-			}
-			$decompressed = @gzinflate( substr($gzData, $i, -8) );
-			if ( false !== $decompressed )
-				return $decompressed;
-		}
-		// Compressed data from java.util.zip.Deflater amongst others.
-		$decompressed = @gzinflate( substr($gzData, 2) );
-		if ( false !== $decompressed )
-			return $decompressed;
-		return false;
-	}
-	/**
-	 * What encoding types to accept and their priority values.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @param string $url
-	 * @param array  $args
-	 * @return string Types of encoding to accept.
-	 */
-	public static function accept_encoding( $url, $args ) {
-		$type = array();
-		$compression_enabled = self::is_available();
-		if ( ! $args['decompress'] ) // Decompression specifically disabled.
-			$compression_enabled = false;
-		elseif ( $args['stream'] ) // Disable when streaming to file.
-			$compression_enabled = false;
-		elseif ( isset( $args['limit_response_size'] ) ) // If only partial content is being requested, we won't be able to decompress it.
-			$compression_enabled = false;
-		if ( $compression_enabled ) {
-			if ( function_exists( 'gzinflate' ) )
-				$type[] = 'deflate;q=1.0';
-			if ( function_exists( 'gzuncompress' ) )
-				$type[] = 'compress;q=0.5';
-			if ( function_exists( 'gzdecode' ) )
-				$type[] = 'gzip;q=0.5';
-		}
-		/**
-		 * Filter the allowed encoding types.
-		 *
-		 * @since 3.6.0
-		 *
-		 * @param array  $type Encoding types allowed. Accepts 'gzinflate',
-		 *                     'gzuncompress', 'gzdecode'.
-		 * @param string $url  URL of the HTTP request.
-		 * @param array  $args HTTP request arguments.
-		 */
-		$type = apply_filters( 'wp_http_accept_encoding', $type, $url, $args );
-		return implode(', ', $type);
-	}
-	/**
-	 * What encoding the content used when it was compressed to send in the headers.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @return string Content-Encoding string to send in the header.
-	 */
-	public static function content_encoding() {
-		return 'deflate';
-	}
-	/**
-	 * Whether the content be decoded based on the headers.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @param array|string $headers All of the available headers.
-	 * @return bool
-	 */
-	public static function should_decode($headers) {
-		if ( is_array( $headers ) ) {
-			if ( array_key_exists('content-encoding', $headers) && ! empty( $headers['content-encoding'] ) )
-				return true;
-		} elseif ( is_string( $headers ) ) {
-			return ( stripos($headers, 'content-encoding:') !== false );
-		}
-		return false;
-	}
-	/**
-	 * Whether decompression and compression are supported by the PHP version.
-	 *
-	 * Each function is tested instead of checking for the zlib extension, to
-	 * ensure that the functions all exist in the PHP version and aren't
-	 * disabled.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @return bool
-	 */
-	public static function is_available() {
-		return ( function_exists('gzuncompress') || function_exists('gzdeflate') || function_exists('gzinflate') );
-	}
-}

changeset 7	cf61fcea0001
parent 5	5e2f62d02dcd
child 9	177826044cd9