File: wp-includes/class-wp-http.php. View all references

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 behavior.
	 *
	 * @since 2.9.0
	 *
	 * @param false|array|WP_Error $response    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' ) );
		}
	}

	$parsed_url = parse_url( $url );

	if ( empty( $url ) || empty( $parsed_url['scheme'] ) ) {
		$response = new WP_Error( 'http_request_failed', __( 'A valid URL was not provided.' ) );
		/** This action is documented in wp-includes/class-wp-http.php */
		do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url );
		return $response;
	}

	if ( $this->block_request( $url ) ) {
		$response = new WP_Error( 'http_request_not_executed', __( 'User has blocked requests through HTTP.' ) );
		/** This action is documented in wp-includes/class-wp-http.php */
		do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url );
		return $response;
	}

	// If we are streaming to a file but no filename was given drop it in the WP temp dir
	// and pick its name using the basename of the $url.
	if ( $parsed_args['stream'] ) {
		if ( empty( $parsed_args['filename'] ) ) {
			$parsed_args['filename'] = get_temp_dir() . basename( $url );
		}

		// Force some settings if we are streaming to a file and check for existence
		// and perms of destination directory.
		$parsed_args['blocking'] = true;
		if ( ! wp_is_writable( dirname( $parsed_args['filename'] ) ) ) {
			$response = new WP_Error( 'http_request_failed', __( 'Destination directory for file streaming does not exist or is not writable.' ) );
			/** This action is documented in wp-includes/class-wp-http.php */
			do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url );
			return $response;
		}
	}

	if ( is_null( $parsed_args['headers'] ) ) {
		$parsed_args['headers'] = array();
	}

	// WP allows passing in headers as a string, weirdly.
	if ( ! is_array( $parsed_args['headers'] ) ) {
		$processed_headers      = WP_Http::processHeaders( $parsed_args['headers'] );
		$parsed_args['headers'] = $processed_headers['headers'];
	}

	// Setup arguments.
	$headers = $parsed_args['headers'];
	$data    = $parsed_args['body'];
	$type    = $parsed_args['method'];
	$options = array(
		'timeout'   => $parsed_args['timeout'],
		'useragent' => $parsed_args['user-agent'],
		'blocking'  => $parsed_args['blocking'],
		'hooks'     => new WP_HTTP_Requests_Hooks( $url, $parsed_args ),
	);

	// Ensure redirects follow browser behavior.
	$options['hooks']->register( 'requests.before_redirect', array( 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 WpOrg\Requests\Cookie.
	if ( ! empty( $parsed_args['cookies'] ) ) {
		$options['cookies'] = WP_Http::normalize_cookies( $parsed_args['cookies'] );
	}

	// SSL certificate handling.
	if ( ! $parsed_args['sslverify'] ) {
		$options['verify']     = false;
		$options['verifyname'] = false;
	} else {
		$options['verify'] = $parsed_args['sslcertificates'];
	}

	// All non-GET/HEAD requests should put the arguments in the form body.
	if ( 'HEAD' !== $type && 'GET' !== $type ) {
		$options['data_format'] = 'body';
	}

	/**
	 * Filters whether SSL should be verified for non-local requests.
	 *
	 * @since 2.8.0
	 * @since 5.1.0 The `$url` parameter was added.
	 *
	 * @param bool|string $ssl_verify Boolean to control whether to verify the SSL connection
	 *                                or path to an SSL certificate.
	 * @param string      $url        The request URL.
	 */
	$options['verify'] = apply_filters( 'https_ssl_verify', $options['verify'], $url );

	// Check for proxies.
	$proxy = new WP_HTTP_Proxy();
	if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
		$options['proxy'] = new WpOrg\Requests\Proxy\Http( $proxy->host() . ':' . $proxy->port() );

		if ( $proxy->use_authentication() ) {
			$options['proxy']->use_authentication = true;
			$options['proxy']->user               = $proxy->username();
			$options['proxy']->pass               = $proxy->password();
		}
	}

	// Avoid issues where mbstring.func_overload is enabled.
	mbstring_binary_safe_encoding();

	try {
		$requests_response = WpOrg\Requests\Requests::request( $url, $headers, $data, $type, $options );

		// Convert the response into an array.
		$http_response = new WP_HTTP_Requests_Response( $requests_response, $parsed_args['filename'] );
		$response      = $http_response->to_array();

		// Add the original object to the array.
		$response['http_response'] = $http_response;
	} catch ( WpOrg\Requests\Exception $e ) {
		$response = new WP_Error( 'http_request_failed', $e->getMessage() );
	}

	reset_mbstring_encoding();

	/**
	 * Fires after an HTTP API response is received and before the response is returned.
	 *
	 * @since 2.8.0
	 *
	 * @param array|WP_Error $response    HTTP response or WP_Error object.
	 * @param string         $context     Context under which the hook is fired.
	 * @param string         $class       HTTP transport used.
	 * @param array          $parsed_args HTTP request arguments.
	 * @param string         $url         The request URL.
	 */
	do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url );
	if ( is_wp_error( $response ) ) {
		return $response;
	}

	if ( ! $parsed_args['blocking'] ) {
		return array(
			'headers'       => array(),
			'body'          => '',
			'response'      => array(
				'code'    => false,
				'message' => false,
			),
			'cookies'       => array(),
			'http_response' => null,
		);
	}

	/**
	 * Filters a successful HTTP API response immediately before the response is returned.
	 *
	 * @since 2.9.0
	 *
	 * @param array  $response    HTTP response.
	 * @param array  $parsed_args HTTP request arguments.
	 * @param string $url         The request URL.
	 */
	return apply_filters( 'http_response', $response, $parsed_args, $url );
}

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