WP_HTTP_IXR_Client::query( $args ): bool

Source

public function query( ...$args ) {
	$method  = array_shift( $args );
	$request = new IXR_Request( $method, $args );
	$xml     = $request->getXml();

	$port = $this->port ? ":$this->port" : '';
	$url  = $this->scheme . '://' . $this->server . $port . $this->path;
	$args = array(
		'headers'    => array( 'Content-Type' => 'text/xml' ),
		'user-agent' => $this->useragent,
		'body'       => $xml,
	);

	// Merge Custom headers ala #8145.
	foreach ( $this->headers as $header => $value ) {
		$args['headers'][ $header ] = $value;
	}

	/**
	 * Filters the headers collection to be sent to the XML-RPC server.
	 *
	 * @since 4.4.0
	 *
	 * @param string[] $headers Associative array of headers to be sent.
	 */
	$args['headers'] = apply_filters( 'wp_http_ixr_client_headers', $args['headers'] );

	if ( false !== $this->timeout ) {
		$args['timeout'] = $this->timeout;
	}

	// Now send the request.
	if ( $this->debug ) {
		echo '<pre class="ixr_request">' . htmlspecialchars( $xml ) . "\n</pre>\n\n";
	}

	$response = wp_remote_post( $url, $args );

	if ( is_wp_error( $response ) ) {
		$errno       = $response->get_error_code();
		$errorstr    = $response->get_error_message();
		$this->error = new IXR_Error( -32300, "transport error: $errno $errorstr" );
		return false;
	}

	if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
		$this->error = new IXR_Error( -32301, 'transport error - HTTP status code was not 200 (' . wp_remote_retrieve_response_code( $response ) . ')' );
		return false;
	}

	if ( $this->debug ) {
		echo '<pre class="ixr_response">' . htmlspecialchars( wp_remote_retrieve_body( $response ) ) . "\n</pre>\n\n";
	}

	// Now parse what we've got back.
	$this->message = new IXR_Message( wp_remote_retrieve_body( $response ) );
	if ( ! $this->message->parse() ) {
		// XML error.
		$this->error = new IXR_Error( -32700, 'parse error. not well formed' );
		return false;
	}

	// Is the message a fault?
	if ( 'fault' === $this->message->messageType ) {
		$this->error = new IXR_Error( $this->message->faultCode, $this->message->faultString );
		return false;
	}

	// Message must be OK.
	return true;
}

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