wp/wp-includes/class-http.php
changeset 19 3d72ae0968f4
parent 18 be944660c56a
child 21 48c4eec2b7e6
--- a/wp/wp-includes/class-http.php	Wed Sep 21 18:19:35 2022 +0200
+++ b/wp/wp-includes/class-http.php	Tue Sep 27 16:37:53 2022 +0200
@@ -1,1093 +1,14 @@
 <?php
 /**
- * HTTP API: WP_Http class
- *
- * @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' );
-}
-
-/**
  * 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.
+ * This file is deprecated, use 'wp-includes/class-wp-http.php' instead.
  *
- * Debugging includes several actions, which pass different variables for debugging the HTTP API.
- *
- * @since 2.7.0
+ * @deprecated 5.9.0
+ * @package WordPress
  */
-class WP_Http {
-
-	// Aliases for HTTP response codes.
-	const HTTP_CONTINUE       = 100;
-	const SWITCHING_PROTOCOLS = 101;
-	const PROCESSING          = 102;
-	const EARLY_HINTS         = 103;
-
-	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.
-	 *
-	 * @since 2.7.0
-	 *
-	 * @param string       $url  The request URL.
-	 * @param string|array $args {
-	 *     Optional. Array or string of HTTP request arguments.
-	 *
-	 *     @type string       $method              Request method. Accepts 'GET', 'POST', 'HEAD', 'PUT', 'DELETE',
-	 *                                             'TRACE', 'OPTIONS', or 'PATCH'.
-	 *                                             Some transports technically allow others, but should not be
-	 *                                             assumed. Default 'GET'.
-	 *     @type float        $timeout             How long the connection should stay open in seconds. Default 5.
-	 *     @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/' . get_bloginfo( 'version' ) . '; ' . get_bloginfo( '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
-	 *                                             any response from the remote server. Default true.
-	 *     @type string|array $headers             Array or string of headers to send with the request.
-	 *                                             Default empty array.
-	 *     @type array        $cookies             List of cookies to send with the request. Default empty array.
-	 *     @type string|array $body                Body to send with the request. Default null.
-	 *     @type bool         $compress            Whether to compress the $body when sending the request.
-	 *                                             Default false.
-	 *     @type bool         $decompress          Whether to decompress a compressed response. If set to false and
-	 *                                             compressed content is returned in the response anyway, it will
-	 *                                             need to be separately decompressed. Default true.
-	 *     @type bool         $sslverify           Whether to verify SSL for the request. Default true.
-	 *     @type string       $sslcertificates     Absolute path to an SSL certificate .crt file.
-	 *                                             Default ABSPATH . WPINC . '/certificates/ca-bundle.crt'.
-	 *     @type bool         $stream              Whether to stream to a file. If set to true and no filename was
-	 *                                             given, it will be droped it in the WP temp dir and its name will
-	 *                                             be set using the basename of the URL. Default false.
-	 *     @type string       $filename            Filename of the file to write to when streaming. $stream must be
-	 *                                             set to true. Default null.
-	 *     @type int          $limit_response_size Size in bytes to limit the response to. Default null.
-	 *
-	 * }
-	 * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'.
-	 *                        A WP_Error instance upon error.
-	 */
-	public function request( $url, $args = array() ) {
-		$defaults = array(
-			'method'              => 'GET',
-			/**
-			 * Filters the timeout value for an HTTP request.
-			 *
-			 * @since 2.7.0
-			 * @since 5.1.0 The `$url` parameter was added.
-			 *
-			 * @param float  $timeout_value Time in seconds until a request times out. Default 5.
-			 * @param string $url           The request URL.
-			 */
-			'timeout'             => apply_filters( 'http_request_timeout', 5, $url ),
-			/**
-			 * Filters the number of redirects allowed during an HTTP request.
-			 *
-			 * @since 2.7.0
-			 * @since 5.1.0 The `$url` parameter was added.
-			 *
-			 * @param int    $redirect_count Number of redirects allowed. Default 5.
-			 * @param string $url            The request URL.
-			 */
-			'redirection'         => apply_filters( 'http_request_redirection_count', 5, $url ),
-			/**
-			 * Filters the version of the HTTP protocol used in a request.
-			 *
-			 * @since 2.7.0
-			 * @since 5.1.0 The `$url` parameter was added.
-			 *
-			 * @param string $version Version of HTTP used. Accepts '1.0' and '1.1'. Default '1.0'.
-			 * @param string $url     The request URL.
-			 */
-			'httpversion'         => apply_filters( 'http_request_version', '1.0', $url ),
-			/**
-			 * Filters the user agent value sent with an HTTP request.
-			 *
-			 * @since 2.7.0
-			 * @since 5.1.0 The `$url` parameter was added.
-			 *
-			 * @param string $user_agent WordPress user agent string.
-			 * @param string $url        The request URL.
-			 */
-			'user-agent'          => apply_filters( 'http_headers_useragent', 'WordPress/' . get_bloginfo( 'version' ) . '; ' . get_bloginfo( 'url' ), $url ),
-			/**
-			 * Filters whether to pass URLs through wp_http_validate_url() in an HTTP request.
-			 *
-			 * @since 3.6.0
-			 * @since 5.1.0 The `$url` parameter was added.
-			 *
-			 * @param bool   $pass_url Whether to pass URLs through wp_http_validate_url(). Default false.
-			 * @param string $url      The request URL.
-			 */
-			'reject_unsafe_urls'  => apply_filters( 'http_request_reject_unsafe_urls', false, $url ),
-			'blocking'            => true,
-			'headers'             => array(),
-			'cookies'             => array(),
-			'body'                => null,
-			'compress'            => false,
-			'decompress'          => true,
-			'sslverify'           => true,
-			'sslcertificates'     => ABSPATH . WPINC . '/certificates/ca-bundle.crt',
-			'stream'              => false,
-			'filename'            => null,
-			'limit_response_size' => null,
-		);
-
-		// Pre-parse for the HEAD checks.
-		$args = wp_parse_args( $args );
-
-		// By default, HEAD requests do not cause redirections.
-		if ( isset( $args['method'] ) && 'HEAD' === $args['method'] ) {
-			$defaults['redirection'] = 0;
-		}
-
-		$parsed_args = wp_parse_args( $args, $defaults );
-		/**
-		 * Filters the arguments used in an HTTP request.
-		 *
-		 * @since 2.7.0
-		 *
-		 * @param array  $parsed_args An array of HTTP request arguments.
-		 * @param string $url         The request URL.
-		 */
-		$parsed_args = apply_filters( 'http_request_args', $parsed_args, $url );
-
-		// The transports decrement this, store a copy of the original value for loop purposes.
-		if ( ! isset( $parsed_args['_redirection'] ) ) {
-			$parsed_args['_redirection'] = $parsed_args['redirection'];
-		}
-
-		/**
-		 * Filters the preemptive return value of an HTTP request.
-		 *
-		 * Returning a non-false value from the filter will short-circuit the HTTP request and return
-		 * early with that value. A filter should return one of:
-		 *
-		 *  - 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 false|array|WP_Error $preempt     A preemptive return value of an HTTP request. Default false.
-		 * @param array                $parsed_args HTTP request arguments.
-		 * @param string               $url         The request URL.
-		 */
-		$pre = apply_filters( 'pre_http_request', false, $parsed_args, $url );
-
-		if ( false !== $pre ) {
-			return $pre;
-		}
-
-		if ( function_exists( 'wp_kses_bad_protocol' ) ) {
-			if ( $parsed_args['reject_unsafe_urls'] ) {
-				$url = wp_http_validate_url( $url );
-			}
-			if ( $url ) {
-				$url = wp_kses_bad_protocol( $url, array( 'http', 'https', 'ssl' ) );
-			}
-		}
-
-		$arrURL = parse_url( $url );
-
-		if ( empty( $url ) || empty( $arrURL['scheme'] ) ) {
-			$response = new WP_Error( 'http_request_failed', __( 'A valid URL was not provided.' ) );
-			/** This action is documented in wp-includes/class-http.php */
-			do_action( 'http_api_debug', $response, 'response', 'Requests', $parsed_args, $url );
-			return $response;
-		}
-
-		if ( $this->block_request( $url ) ) {
-			$response = new WP_Error( 'http_request_not_executed', __( 'User has blocked requests through HTTP.' ) );
-			/** This action is documented in wp-includes/class-http.php */
-			do_action( 'http_api_debug', $response, 'response', 'Requests', $parsed_args, $url );
-			return $response;
-		}
-
-		// If we are streaming to a file but no filename was given drop it in the WP temp dir
-		// and pick its name using the basename of the $url.
-		if ( $parsed_args['stream'] ) {
-			if ( empty( $parsed_args['filename'] ) ) {
-				$parsed_args['filename'] = get_temp_dir() . basename( $url );
-			}
-
-			// Force some settings if we are streaming to a file and check for existence
-			// and perms of destination directory.
-			$parsed_args['blocking'] = true;
-			if ( ! wp_is_writable( dirname( $parsed_args['filename'] ) ) ) {
-				$response = new WP_Error( 'http_request_failed', __( 'Destination directory for file streaming does not exist or is not writable.' ) );
-				/** This action is documented in wp-includes/class-http.php */
-				do_action( 'http_api_debug', $response, 'response', 'Requests', $parsed_args, $url );
-				return $response;
-			}
-		}
-
-		if ( is_null( $parsed_args['headers'] ) ) {
-			$parsed_args['headers'] = array();
-		}
-
-		// WP allows passing in headers as a string, weirdly.
-		if ( ! is_array( $parsed_args['headers'] ) ) {
-			$processedHeaders       = WP_Http::processHeaders( $parsed_args['headers'] );
-			$parsed_args['headers'] = $processedHeaders['headers'];
-		}
-
-		// Setup arguments.
-		$headers = $parsed_args['headers'];
-		$data    = $parsed_args['body'];
-		$type    = $parsed_args['method'];
-		$options = array(
-			'timeout'   => $parsed_args['timeout'],
-			'useragent' => $parsed_args['user-agent'],
-			'blocking'  => $parsed_args['blocking'],
-			'hooks'     => new WP_HTTP_Requests_Hooks( $url, $parsed_args ),
-		);
-
-		// Ensure redirects follow browser behaviour.
-		$options['hooks']->register( 'requests.before_redirect', array( get_class(), 'browser_redirect_compatibility' ) );
-
-		// Validate redirected URLs.
-		if ( function_exists( 'wp_kses_bad_protocol' ) && $parsed_args['reject_unsafe_urls'] ) {
-			$options['hooks']->register( 'requests.before_redirect', array( get_class(), 'validate_redirects' ) );
-		}
-
-		if ( $parsed_args['stream'] ) {
-			$options['filename'] = $parsed_args['filename'];
-		}
-		if ( empty( $parsed_args['redirection'] ) ) {
-			$options['follow_redirects'] = false;
-		} else {
-			$options['redirects'] = $parsed_args['redirection'];
-		}
-
-		// Use byte limit, if we can.
-		if ( isset( $parsed_args['limit_response_size'] ) ) {
-			$options['max_bytes'] = $parsed_args['limit_response_size'];
-		}
-
-		// If we've got cookies, use and convert them to Requests_Cookie.
-		if ( ! empty( $parsed_args['cookies'] ) ) {
-			$options['cookies'] = WP_Http::normalize_cookies( $parsed_args['cookies'] );
-		}
-
-		// SSL certificate handling.
-		if ( ! $parsed_args['sslverify'] ) {
-			$options['verify']     = false;
-			$options['verifyname'] = false;
-		} else {
-			$options['verify'] = $parsed_args['sslcertificates'];
-		}
-
-		// All non-GET/HEAD requests should put the arguments in the form body.
-		if ( 'HEAD' !== $type && 'GET' !== $type ) {
-			$options['data_format'] = 'body';
-		}
-
-		/**
-		 * Filters whether SSL should be verified for non-local requests.
-		 *
-		 * @since 2.8.0
-		 * @since 5.1.0 The `$url` parameter was added.
-		 *
-		 * @param bool   $ssl_verify Whether to verify the SSL connection. Default true.
-		 * @param string $url        The request URL.
-		 */
-		$options['verify'] = apply_filters( 'https_ssl_verify', $options['verify'], $url );
-
-		// Check for proxies.
-		$proxy = new WP_HTTP_Proxy();
-		if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
-			$options['proxy'] = new Requests_Proxy_HTTP( $proxy->host() . ':' . $proxy->port() );
-
-			if ( $proxy->use_authentication() ) {
-				$options['proxy']->use_authentication = true;
-				$options['proxy']->user               = $proxy->username();
-				$options['proxy']->pass               = $proxy->password();
-			}
-		}
-
-		// Avoid issues where mbstring.func_overload is enabled.
-		mbstring_binary_safe_encoding();
-
-		try {
-			$requests_response = Requests::request( $url, $headers, $data, $type, $options );
-
-			// Convert the response into an array.
-			$http_response = new WP_HTTP_Requests_Response( $requests_response, $parsed_args['filename'] );
-			$response      = $http_response->to_array();
-
-			// Add the original object to the array.
-			$response['http_response'] = $http_response;
-		} catch ( Requests_Exception $e ) {
-			$response = new WP_Error( 'http_request_failed', $e->getMessage() );
-		}
-
-		reset_mbstring_encoding();
-
-		/**
-		 * Fires after an HTTP API response is received and before the response is returned.
-		 *
-		 * @since 2.8.0
-		 *
-		 * @param array|WP_Error $response    HTTP response or WP_Error object.
-		 * @param string         $context     Context under which the hook is fired.
-		 * @param string         $class       HTTP transport used.
-		 * @param array          $parsed_args HTTP request arguments.
-		 * @param string         $url         The request URL.
-		 */
-		do_action( 'http_api_debug', $response, 'response', 'Requests', $parsed_args, $url );
-		if ( is_wp_error( $response ) ) {
-			return $response;
-		}
-
-		if ( ! $parsed_args['blocking'] ) {
-			return array(
-				'headers'       => array(),
-				'body'          => '',
-				'response'      => array(
-					'code'    => false,
-					'message' => false,
-				),
-				'cookies'       => array(),
-				'http_response' => null,
-			);
-		}
-
-		/**
-		 * Filters the HTTP API response immediately before the response is returned.
-		 *
-		 * @since 2.9.0
-		 *
-		 * @param array  $response    HTTP response.
-		 * @param array  $parsed_args HTTP request arguments.
-		 * @param string $url         The request URL.
-		 */
-		return apply_filters( 'http_response', $response, $parsed_args, $url );
-	}
-
-	/**
-	 * Normalizes cookies for using in Requests.
-	 *
-	 * @since 4.6.0
-	 *
-	 * @param array $cookies Array of cookies to send with the request.
-	 * @return Requests_Cookie_Jar Cookie holder object.
-	 */
-	public static function normalize_cookies( $cookies ) {
-		$cookie_jar = new Requests_Cookie_Jar();
-
-		foreach ( $cookies as $name => $value ) {
-			if ( $value instanceof WP_Http_Cookie ) {
-				$cookie_jar[ $value->name ] = new Requests_Cookie( $value->name, $value->value, $value->get_attributes(), array( 'host-only' => $value->host_only ) );
-			} elseif ( is_scalar( $value ) ) {
-				$cookie_jar[ $name ] = new Requests_Cookie( $name, $value );
-			}
-		}
-
-		return $cookie_jar;
-	}
-
-	/**
-	 * Match redirect behaviour to browser handling.
-	 *
-	 * Changes 302 redirects from POST to GET to match browser handling. Per
-	 * RFC 7231, user agents can deviate from the strict reading of the
-	 * specification for compatibility purposes.
-	 *
-	 * @since 4.6.0
-	 *
-	 * @param string            $location URL to redirect to.
-	 * @param array             $headers  Headers for the redirect.
-	 * @param string|array      $data     Body to send with the request.
-	 * @param array             $options  Redirect request options.
-	 * @param Requests_Response $original Response object.
-	 */
-	public static function browser_redirect_compatibility( $location, $headers, $data, &$options, $original ) {
-		// Browser compatibility.
-		if ( 302 === $original->status_code ) {
-			$options['type'] = Requests::GET;
-		}
-	}
-
-	/**
-	 * Validate redirected URLs.
-	 *
-	 * @since 4.7.5
-	 *
-	 * @throws Requests_Exception On unsuccessful URL validation.
-	 * @param string $location URL to redirect to.
-	 */
-	public static function validate_redirects( $location ) {
-		if ( ! wp_http_validate_url( $location ) ) {
-			throw new Requests_Exception( __( 'A valid URL was not provided.' ), 'wp_http.redirect_failed_validation' );
-		}
-	}
-
-	/**
-	 * Tests which transports are capable of supporting the request.
-	 *
-	 * @since 3.2.0
-	 *
-	 * @param array  $args Request arguments.
-	 * @param string $url  URL to request.
-	 * @return string|false Class name for the first transport that claims to support the request.
-	 *                      False if no transport claims to support the request.
-	 */
-	public function _get_first_available_transport( $args, $url = null ) {
-		$transports = array( 'curl', 'streams' );
-
-		/**
-		 * Filters which HTTP transports are available and in what order.
-		 *
-		 * @since 3.7.0
-		 *
-		 * @param string[] $transports Array of HTTP transports to check. Default array contains
-		 *                             'curl' and 'streams', in that order.
-		 * @param array    $args       HTTP request arguments.
-		 * @param string   $url        The URL to request.
-		 */
-		$request_order = apply_filters( '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 ) {
-			if ( in_array( $transport, $transports, true ) ) {
-				$transport = ucfirst( $transport );
-			}
-			$class = 'WP_Http_' . $transport;
-
-			// Check to see if this transport is a possibility, calls the transport statically.
-			if ( ! call_user_func( array( $class, 'test' ), $args, $url ) ) {
-				continue;
-			}
-
-			return $class;
-		}
-
-		return false;
-	}
 
-	/**
-	 * Dispatches a HTTP request to a supporting transport.
-	 *
-	 * Tests each transport in order to find a transport which matches the request arguments.
-	 * Also caches the transport instance to be used later.
-	 *
-	 * The order for requests is cURL, and then PHP Streams.
-	 *
-	 * @since 3.2.0
-	 * @deprecated 5.1.0 Use WP_Http::request()
-	 * @see WP_Http::request()
-	 *
-	 * @param string $url  URL to request.
-	 * @param array  $args Request arguments.
-	 * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'.
-	 *                        A WP_Error instance upon error.
-	 */
-	private function _dispatch_request( $url, $args ) {
-		static $transports = array();
-
-		$class = $this->_get_first_available_transport( $args, $url );
-		if ( ! $class ) {
-			return new WP_Error( 'http_failure', __( 'There are no HTTP transports available which can complete the requested request.' ) );
-		}
-
-		// Transport claims to support request, instantiate it and give it a whirl.
-		if ( empty( $transports[ $class ] ) ) {
-			$transports[ $class ] = new $class;
-		}
-
-		$response = $transports[ $class ]->request( $url, $args );
-
-		/** This action is documented in wp-includes/class-http.php */
-		do_action( 'http_api_debug', $response, 'response', $class, $args, $url );
-
-		if ( is_wp_error( $response ) ) {
-			return $response;
-		}
-
-		/** This filter is documented in wp-includes/class-http.php */
-		return apply_filters( 'http_response', $response, $args, $url );
-	}
-
-	/**
-	 * Uses the POST HTTP method.
-	 *
-	 * Used for sending data that is expected to be in the body.
-	 *
-	 * @since 2.7.0
-	 *
-	 * @param string       $url  The request URL.
-	 * @param string|array $args Optional. Override the defaults.
-	 * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'.
-	 *                        A WP_Error instance upon error.
-	 */
-	public function post( $url, $args = array() ) {
-		$defaults    = array( 'method' => 'POST' );
-		$parsed_args = wp_parse_args( $args, $defaults );
-		return $this->request( $url, $parsed_args );
-	}
-
-	/**
-	 * Uses the GET HTTP method.
-	 *
-	 * Used for sending data that is expected to be in the body.
-	 *
-	 * @since 2.7.0
-	 *
-	 * @param string       $url  The request URL.
-	 * @param string|array $args Optional. Override the defaults.
-	 * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'.
-	 *                        A WP_Error instance upon error.
-	 */
-	public function get( $url, $args = array() ) {
-		$defaults    = array( 'method' => 'GET' );
-		$parsed_args = wp_parse_args( $args, $defaults );
-		return $this->request( $url, $parsed_args );
-	}
-
-	/**
-	 * Uses the HEAD HTTP method.
-	 *
-	 * Used for sending data that is expected to be in the body.
-	 *
-	 * @since 2.7.0
-	 *
-	 * @param string       $url  The request URL.
-	 * @param string|array $args Optional. Override the defaults.
-	 * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'.
-	 *                        A WP_Error instance upon error.
-	 */
-	public function head( $url, $args = array() ) {
-		$defaults    = array( 'method' => 'HEAD' );
-		$parsed_args = wp_parse_args( $args, $defaults );
-		return $this->request( $url, $parsed_args );
-	}
-
-	/**
-	 * Parses the responses and splits the parts into headers and body.
-	 *
-	 * @since 2.7.0
-	 *
-	 * @param string $strResponse The full response string.
-	 * @return array {
-	 *     Array with response headers and body.
-	 *
-	 *     @type string $headers HTTP response headers.
-	 *     @type string $body    HTTP response body.
-	 * }
-	 */
-	public static function processResponse( $strResponse ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
-		$res = explode( "\r\n\r\n", $strResponse, 2 );
-
-		return array(
-			'headers' => $res[0],
-			'body'    => isset( $res[1] ) ? $res[1] : '',
-		);
-	}
-
-	/**
-	 * Transforms header string into an array.
-	 *
-	 * @since 2.7.0
-	 *
-	 * @param string|array $headers The original headers. If a string is passed, it will be converted
-	 *                              to an array. If an array is passed, then it is assumed to be
-	 *                              raw header data with numeric keys with the headers as the values.
-	 *                              No headers must be passed that were already processed.
-	 * @param string       $url     Optional. The URL that was requested. Default empty.
-	 * @return array {
-	 *     Processed string headers. If duplicate headers are encountered,
-	 *     then a numbered array is returned as the value of that header-key.
-	 *
-	 *     @type array            $response {
-	 *          @type int    $code    The response status code. Default 0.
-	 *          @type string $message The response message. Default empty.
-	 *     }
-	 *     @type array            $newheaders The processed header data as a multidimensional array.
-	 *     @type WP_Http_Cookie[] $cookies    If the original headers contain the 'Set-Cookie' key,
-	 *                                        an array containing `WP_Http_Cookie` objects is returned.
-	 * }
-	 */
-	public static function processHeaders( $headers, $url = '' ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
-		// Split headers, one per array element.
-		if ( is_string( $headers ) ) {
-			// Tolerate line terminator: CRLF = LF (RFC 2616 19.3).
-			$headers = str_replace( "\r\n", "\n", $headers );
-			/*
-			 * Unfold folded header fields. LWS = [CRLF] 1*( SP | HT ) <US-ASCII SP, space (32)>,
-			 * <US-ASCII HT, horizontal-tab (9)> (RFC 2616 2.2).
-			 */
-			$headers = preg_replace( '/\n[ \t]/', ' ', $headers );
-			// Create the headers array.
-			$headers = explode( "\n", $headers );
-		}
-
-		$response = array(
-			'code'    => 0,
-			'message' => '',
-		);
-
-		/*
-		 * If a redirection has taken place, The headers for each page request may have been passed.
-		 * In this case, determine the final HTTP header and parse from there.
-		 */
-		for ( $i = count( $headers ) - 1; $i >= 0; $i-- ) {
-			if ( ! empty( $headers[ $i ] ) && false === strpos( $headers[ $i ], ':' ) ) {
-				$headers = array_splice( $headers, $i );
-				break;
-			}
-		}
-
-		$cookies    = array();
-		$newheaders = array();
-		foreach ( (array) $headers as $tempheader ) {
-			if ( empty( $tempheader ) ) {
-				continue;
-			}
-
-			if ( false === strpos( $tempheader, ':' ) ) {
-				$stack   = explode( ' ', $tempheader, 3 );
-				$stack[] = '';
-				list( , $response['code'], $response['message']) = $stack;
-				continue;
-			}
-
-			list($key, $value) = explode( ':', $tempheader, 2 );
-
-			$key   = strtolower( $key );
-			$value = trim( $value );
-
-			if ( isset( $newheaders[ $key ] ) ) {
-				if ( ! is_array( $newheaders[ $key ] ) ) {
-					$newheaders[ $key ] = array( $newheaders[ $key ] );
-				}
-				$newheaders[ $key ][] = $value;
-			} else {
-				$newheaders[ $key ] = $value;
-			}
-			if ( 'set-cookie' === $key ) {
-				$cookies[] = new WP_Http_Cookie( $value, $url );
-			}
-		}
-
-		// Cast the Response Code to an int.
-		$response['code'] = (int) $response['code'];
-
-		return array(
-			'response' => $response,
-			'headers'  => $newheaders,
-			'cookies'  => $cookies,
-		);
-	}
-
-	/**
-	 * Takes the arguments for a ::request() and checks for the cookie array.
-	 *
-	 * If it's found, then it upgrades any basic name => value pairs to WP_Http_Cookie instances,
-	 * which are each parsed into strings and added to the Cookie: header (within the arguments array).
-	 * Edits the array by reference.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @param array $r Full array of args passed into ::request()
-	 */
-	public static function buildCookieHeader( &$r ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
-		if ( ! empty( $r['cookies'] ) ) {
-			// Upgrade any name => value cookie pairs to WP_HTTP_Cookie instances.
-			foreach ( $r['cookies'] as $name => $value ) {
-				if ( ! is_object( $value ) ) {
-					$r['cookies'][ $name ] = new WP_Http_Cookie(
-						array(
-							'name'  => $name,
-							'value' => $value,
-						)
-					);
-				}
-			}
-
-			$cookies_header = '';
-			foreach ( (array) $r['cookies'] as $cookie ) {
-				$cookies_header .= $cookie->getHeaderValue() . '; ';
-			}
-
-			$cookies_header         = substr( $cookies_header, 0, -2 );
-			$r['headers']['cookie'] = $cookies_header;
-		}
-	}
-
-	/**
-	 * Decodes chunk transfer-encoding, based off the HTTP 1.1 specification.
-	 *
-	 * Based off the HTTP http_encoding_dechunk function.
-	 *
-	 * @link https://tools.ietf.org/html/rfc2616#section-19.4.6 Process for chunked decoding.
-	 *
-	 * @since 2.7.0
-	 *
-	 * @param string $body Body content.
-	 * @return string Chunked decoded body on success or raw body on failure.
-	 */
-	public static function chunkTransferDecode( $body ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
-		// The body is not chunked encoded or is malformed.
-		if ( ! preg_match( '/^([0-9a-f]+)[^\r\n]*\r\n/i', trim( $body ) ) ) {
-			return $body;
-		}
-
-		$parsed_body = '';
-
-		// We'll be altering $body, so need a backup in case of error.
-		$body_original = $body;
+_deprecated_file( basename( __FILE__ ), '5.9.0', 'wp-includes/class-wp-http.php' );
 
-		while ( true ) {
-			$has_chunk = (bool) preg_match( '/^([0-9a-f]+)[^\r\n]*\r\n/i', $body, $match );
-			if ( ! $has_chunk || empty( $match[1] ) ) {
-				return $body_original;
-			}
-
-			$length       = hexdec( $match[1] );
-			$chunk_length = strlen( $match[0] );
-
-			// Parse out the chunk of data.
-			$parsed_body .= substr( $body, $chunk_length, $length );
-
-			// Remove the chunk from the raw data.
-			$body = substr( $body, $length + $chunk_length );
-
-			// End of the document.
-			if ( '0' === trim( $body ) ) {
-				return $parsed_body;
-			}
-		}
-	}
-
-	/**
-	 * Determines whether an HTTP API request to the given URL should be blocked.
-	 *
-	 * Those who are behind a proxy and want to prevent access to certain hosts may do so. This will
-	 * prevent plugins from working and core functionality, if you don't include `api.wordpress.org`.
-	 *
-	 * You block external URL requests by defining `WP_HTTP_BLOCK_EXTERNAL` as true in your `wp-config.php`
-	 * file and this will only allow localhost and your site to make requests. The constant
-	 * `WP_ACCESSIBLE_HOSTS` will allow additional hosts to go through for requests. The format of the
-	 * `WP_ACCESSIBLE_HOSTS` constant is a comma separated list of hostnames to allow, wildcard domains
-	 * are supported, eg `*.wordpress.org` will allow for all subdomains of `wordpress.org` to be contacted.
-	 *
-	 * @since 2.8.0
-	 *
-	 * @link https://core.trac.wordpress.org/ticket/8927 Allow preventing external requests.
-	 * @link https://core.trac.wordpress.org/ticket/14636 Allow wildcard domains in WP_ACCESSIBLE_HOSTS
-	 *
-	 * @param string $uri URI of url.
-	 * @return bool True to block, false to allow.
-	 */
-	public function block_request( $uri ) {
-		// We don't need to block requests, because nothing is blocked.
-		if ( ! defined( 'WP_HTTP_BLOCK_EXTERNAL' ) || ! WP_HTTP_BLOCK_EXTERNAL ) {
-			return false;
-		}
-
-		$check = parse_url( $uri );
-		if ( ! $check ) {
-			return true;
-		}
-
-		$home = parse_url( get_option( 'siteurl' ) );
-
-		// Don't block requests back to ourselves by default.
-		if ( 'localhost' === $check['host'] || ( isset( $home['host'] ) && $home['host'] == $check['host'] ) ) {
-			/**
-			 * Filters whether to block local HTTP API requests.
-			 *
-			 * A local request is one to `localhost` or to the same host as the site itself.
-			 *
-			 * @since 2.8.0
-			 *
-			 * @param bool $block Whether to block local requests. Default false.
-			 */
-			return apply_filters( 'block_local_requests', false );
-		}
-
-		if ( ! defined( 'WP_ACCESSIBLE_HOSTS' ) ) {
-			return true;
-		}
-
-		static $accessible_hosts = null;
-		static $wildcard_regex   = array();
-		if ( null === $accessible_hosts ) {
-			$accessible_hosts = preg_split( '|,\s*|', WP_ACCESSIBLE_HOSTS );
-
-			if ( false !== strpos( WP_ACCESSIBLE_HOSTS, '*' ) ) {
-				$wildcard_regex = array();
-				foreach ( $accessible_hosts as $host ) {
-					$wildcard_regex[] = str_replace( '\*', '.+', preg_quote( $host, '/' ) );
-				}
-				$wildcard_regex = '/^(' . implode( '|', $wildcard_regex ) . ')$/i';
-			}
-		}
-
-		if ( ! empty( $wildcard_regex ) ) {
-			return ! preg_match( $wildcard_regex, $check['host'] );
-		} else {
-			return ! in_array( $check['host'], $accessible_hosts, true ); // Inverse logic, if it's in the array, then don't block it.
-		}
-
-	}
-
-	/**
-	 * Used as a wrapper for PHP's parse_url() function that handles edgecases in < PHP 5.4.7.
-	 *
-	 * @deprecated 4.4.0 Use wp_parse_url()
-	 * @see wp_parse_url()
-	 *
-	 * @param string $url The URL to parse.
-	 * @return bool|array False on failure; Array of URL components on success;
-	 *                    See parse_url()'s return values.
-	 */
-	protected static function parse_url( $url ) {
-		_deprecated_function( __METHOD__, '4.4.0', 'wp_parse_url()' );
-		return wp_parse_url( $url );
-	}
-
-	/**
-	 * Converts a relative URL to an absolute URL relative to a given URL.
-	 *
-	 * If an Absolute URL is provided, no processing of that URL is done.
-	 *
-	 * @since 3.4.0
-	 *
-	 * @param string $maybe_relative_path The URL which might be relative.
-	 * @param string $url                 The URL which $maybe_relative_path is relative to.
-	 * @return string An Absolute URL, in a failure condition where the URL cannot be parsed, the relative URL will be returned.
-	 */
-	public static function make_absolute_url( $maybe_relative_path, $url ) {
-		if ( empty( $url ) ) {
-			return $maybe_relative_path;
-		}
-
-		$url_parts = wp_parse_url( $url );
-		if ( ! $url_parts ) {
-			return $maybe_relative_path;
-		}
-
-		$relative_url_parts = wp_parse_url( $maybe_relative_path );
-		if ( ! $relative_url_parts ) {
-			return $maybe_relative_path;
-		}
-
-		// Check for a scheme on the 'relative' URL.
-		if ( ! empty( $relative_url_parts['scheme'] ) ) {
-			return $maybe_relative_path;
-		}
-
-		$absolute_path = $url_parts['scheme'] . '://';
-
-		// Schemeless URLs will make it this far, so we check for a host in the relative URL
-		// and convert it to a protocol-URL.
-		if ( isset( $relative_url_parts['host'] ) ) {
-			$absolute_path .= $relative_url_parts['host'];
-			if ( isset( $relative_url_parts['port'] ) ) {
-				$absolute_path .= ':' . $relative_url_parts['port'];
-			}
-		} else {
-			$absolute_path .= $url_parts['host'];
-			if ( isset( $url_parts['port'] ) ) {
-				$absolute_path .= ':' . $url_parts['port'];
-			}
-		}
-
-		// Start off with the absolute URL path.
-		$path = ! empty( $url_parts['path'] ) ? $url_parts['path'] : '/';
-
-		// If it's a root-relative path, then great.
-		if ( ! empty( $relative_url_parts['path'] ) && '/' === $relative_url_parts['path'][0] ) {
-			$path = $relative_url_parts['path'];
-
-			// Else it's a relative path.
-		} elseif ( ! empty( $relative_url_parts['path'] ) ) {
-			// Strip off any file components from the absolute path.
-			$path = substr( $path, 0, strrpos( $path, '/' ) + 1 );
-
-			// Build the new path.
-			$path .= $relative_url_parts['path'];
-
-			// Strip all /path/../ out of the path.
-			while ( strpos( $path, '../' ) > 1 ) {
-				$path = preg_replace( '![^/]+/\.\./!', '', $path );
-			}
-
-			// Strip any final leading ../ from the path.
-			$path = preg_replace( '!^/(\.\./)+!', '', $path );
-		}
-
-		// Add the query string.
-		if ( ! empty( $relative_url_parts['query'] ) ) {
-			$path .= '?' . $relative_url_parts['query'];
-		}
-
-		return $absolute_path . '/' . ltrim( $path, '/' );
-	}
-
-	/**
-	 * Handles an HTTP redirect and follows it if appropriate.
-	 *
-	 * @since 3.7.0
-	 *
-	 * @param string $url      The URL which was requested.
-	 * @param array  $args     The arguments which were used to make the request.
-	 * @param array  $response The response of the HTTP request.
-	 * @return array|false|WP_Error An HTTP API response array if the redirect is successfully followed,
-	 *                              false if no redirect is present, or a WP_Error object if there's an error.
-	 */
-	public static function handle_redirects( $url, $args, $response ) {
-		// If no redirects are present, or, redirects were not requested, perform no action.
-		if ( ! isset( $response['headers']['location'] ) || 0 === $args['_redirection'] ) {
-			return false;
-		}
-
-		// Only perform redirections on redirection http codes.
-		if ( $response['response']['code'] > 399 || $response['response']['code'] < 300 ) {
-			return false;
-		}
-
-		// Don't redirect if we've run out of redirects.
-		if ( $args['redirection']-- <= 0 ) {
-			return new WP_Error( 'http_request_failed', __( 'Too many redirects.' ) );
-		}
-
-		$redirect_location = $response['headers']['location'];
-
-		// If there were multiple Location headers, use the last header specified.
-		if ( is_array( $redirect_location ) ) {
-			$redirect_location = array_pop( $redirect_location );
-		}
-
-		$redirect_location = WP_Http::make_absolute_url( $redirect_location, $url );
-
-		// POST requests should not POST to a redirected location.
-		if ( 'POST' === $args['method'] ) {
-			if ( in_array( $response['response']['code'], array( 302, 303 ), true ) ) {
-				$args['method'] = 'GET';
-			}
-		}
-
-		// Include valid cookies in the redirect process.
-		if ( ! empty( $response['cookies'] ) ) {
-			foreach ( $response['cookies'] as $cookie ) {
-				if ( $cookie->test( $redirect_location ) ) {
-					$args['cookies'][] = $cookie;
-				}
-			}
-		}
-
-		return wp_remote_request( $redirect_location, $args );
-	}
-
-	/**
-	 * Determines if a specified string represents an IP address or not.
-	 *
-	 * This function also detects the type of the IP address, returning either
-	 * '4' or '6' to represent 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.
-	 *
-	 * @link http://home.deds.nl/~aeron/regex/ for IPv6 regex.
-	 *
-	 * @since 3.7.0
-	 *
-	 * @param string $maybe_ip A suspected IP address.
-	 * @return int|false Upon success, '4' or '6' to represent a IPv4 or IPv6 address, false upon failure
-	 */
-	public static function is_ip_address( $maybe_ip ) {
-		if ( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/', $maybe_ip ) ) {
-			return 4;
-		}
-
-		if ( false !== strpos( $maybe_ip, ':' ) && preg_match( '/^(((?=.*(::))(?!.*\3.+\3))\3?|([\dA-F]{1,4}(\3|:\b|$)|\2))(?4){5}((?4){2}|(((2[0-4]|1\d|[1-9])?\d|25[0-5])\.?\b){4})$/i', trim( $maybe_ip, ' []' ) ) ) {
-			return 6;
-		}
-
-		return false;
-	}
-
-}
+/** WP_Http class */
+require_once ABSPATH . 'wp-includes/class-wp-http.php';