Wordpress/wp-includes/class-wp-http-ixr-client.php

<?php
/**
 * WP_HTTP_IXR_Client
 *
 * @package WordPress
 * @since 3.1.0
 *
 */
class WP_HTTP_IXR_Client extends IXR_Client
{
    function WP_HTTP_IXR_Client($server, $path = false, $port = 80, $timeout = 15)
    {
        if (!$path) {
            // Assume we have been given a URL instead
            $bits = parse_url($server);
            $this->scheme = $bits['scheme'];
            $this->server = $bits['host'];
            $this->port = isset($bits['port']) ? $bits['port'] : 80;
            $this->path = isset($bits['path']) ? $bits['path'] : '/';

            // Make absolutely sure we have a path
            if (!$this->path) {
                $this->path = '/';
            }
        } else {
        	$this->scheme = 'http';
            $this->server = $server;
            $this->path = $path;
            $this->port = $port;
        }
        $this->useragent = 'The Incutio XML-RPC PHP Library';
        $this->timeout = $timeout;
    }

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

        $url = $this->scheme . '://' . $this->server . ':' . $this->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;

		if ( $this->timeout !== false )
			$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 $errstr");
			return false;
		}

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

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

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

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

        // Message must be OK
        return true;
    }
}
?>