1<?php
  2/**
  3 * WP_HTTP_IXR_Client
  4 *
  5 * @package WordPress
  6 * @since 3.1.0
  7 */
  8#[AllowDynamicProperties]
  9class WP_HTTP_IXR_Client extends IXR_Client {
 10	public $scheme;
 11	/**
 12	 * @var IXR_Error
 13	 */
 14	public $error;
 15
 16	/**
 17	 * @param string       $server
 18	 * @param string|false $path
 19	 * @param int|false    $port
 20	 * @param int          $timeout
 21	 */
 22	public function __construct( $server, $path = false, $port = false, $timeout = 15 ) {
 23		if ( ! $path ) {
 24			// Assume we have been given a URL instead.
 25			$bits         = parse_url( $server );
 26			$this->scheme = $bits['scheme'];
 27			$this->server = $bits['host'];
 28			$this->port   = isset( $bits['port'] ) ? $bits['port'] : $port;
 29			$this->path   = ! empty( $bits['path'] ) ? $bits['path'] : '/';
 30
 31			// Make absolutely sure we have a path.
 32			if ( ! $this->path ) {
 33				$this->path = '/';
 34			}
 35
 36			if ( ! empty( $bits['query'] ) ) {
 37				$this->path .= '?' . $bits['query'];
 38			}
 39		} else {
 40			$this->scheme = 'http';
 41			$this->server = $server;
 42			$this->path   = $path;
 43			$this->port   = $port;
 44		}
 45		$this->useragent = 'The Incutio XML-RPC PHP Library';
 46		$this->timeout   = $timeout;
 47	}
 48
 49	/**
 50	 * @since 3.1.0
 51	 * @since 5.5.0 Formalized the existing `...$args` parameter by adding it
 52	 *              to the function signature.
 53	 *
 54	 * @return bool
 55	 */
 56	public function query( ...$args ) {
 57		$method  = array_shift( $args );
 58		$request = new IXR_Request( $method, $args );
 59		$xml     = $request->getXml();
 60
 61		$port = $this->port ? ":$this->port" : '';
 62		$url  = $this->scheme . '://' . $this->server . $port . $this->path;
 63		$args = array(
 64			'headers'    => array( 'Content-Type' => 'text/xml' ),
 65			'user-agent' => $this->useragent,
 66			'body'       => $xml,
 67		);
 68
 69		// Merge Custom headers ala #8145.
 70		foreach ( $this->headers as $header => $value ) {
 71			$args['headers'][ $header ] = $value;
 72		}
 73
 74		/**
 75		 * Filters the headers collection to be sent to the XML-RPC server.
 76		 *
 77		 * @since 4.4.0
 78		 *
 79		 * @param string[] $headers Associative array of headers to be sent.
 80		 */
 81		$args['headers'] = apply_filters( 'wp_http_ixr_client_headers', $args['headers'] );
 82
 83		if ( false !== $this->timeout ) {
 84			$args['timeout'] = $this->timeout;
 85		}
 86
 87		// Now send the request.
 88		if ( $this->debug ) {
 89			echo '<pre class="ixr_request">' . htmlspecialchars( $xml ) . "\n</pre>\n\n";
 90		}
 91
 92		$response = wp_safe_remote_post( $url, $args );
 93
 94		if ( is_wp_error( $response ) ) {
 95			$errno       = $response->get_error_code();
 96			$errorstr    = $response->get_error_message();
 97			$this->error = new IXR_Error( -32300, "transport error: $errno $errorstr" );
 98			return false;
 99		}
100
101		if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
102			$this->error = new IXR_Error( -32301, 'transport error - HTTP status code was not 200 (' . wp_remote_retrieve_response_code( $response ) . ')' );
103			return false;
104		}
105
106		if ( $this->debug ) {
107			echo '<pre class="ixr_response">' . htmlspecialchars( wp_remote_retrieve_body( $response ) ) . "\n</pre>\n\n";
108		}
109
110		// Now parse what we've got back.
111		$this->message = new IXR_Message( wp_remote_retrieve_body( $response ) );
112		if ( ! $this->message->parse() ) {
113			// XML error.
114			$this->error = new IXR_Error( -32700, 'parse error. not well formed' );
115			return false;
116		}
117
118		// Is the message a fault?
119		if ( 'fault' === $this->message->messageType ) {
120			$this->error = new IXR_Error( $this->message->faultCode, $this->message->faultString );
121			return false;
122		}
123
124		// Message must be OK.
125		return true;
126	}
127}
128