<?php

/**

 * IXR_Client

 *

 * @package IXR

 * @since 1.5.0

 *

 */

class IXR_Client

{

    var $server;

    var $port;

    var $path;

    var $useragent;

    var $response;

    var $message = false;

    var $debug = false;

    var $timeout;

    var $headers = array();

    // Storage place for an error message

    var $error = false;

	/**

	 * PHP5 constructor.

	 */

    function __construct( $server, $path = false, $port = 80, $timeout = 15 )

    {

        if (!$path) {

            // Assume we have been given a URL instead

            $bits = parse_url($server);

            $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 = '/';

            }

            if ( ! empty( $bits['query'] ) ) {

                $this->path .= '?' . $bits['query'];

            }

        } else {

            $this->server = $server;

            $this->path = $path;

            $this->port = $port;

        }

        $this->useragent = 'The Incutio XML-RPC PHP Library';

        $this->timeout = $timeout;

    }

	/**

	 * PHP4 constructor.

	 */

	public function IXR_Client( $server, $path = false, $port = 80, $timeout = 15 ) {

		self::__construct( $server, $path, $port, $timeout );

	}

	/**

	 * @since 1.5.0

	 * @since 5.5.0 Formalized the existing `...$args` parameter by adding it

	 *              to the function signature.

	 *

	 * @return bool

	 */

    function query( ...$args )

    {

        $method = array_shift($args);

        $request = new IXR_Request($method, $args);

        $length = $request->getLength();

        $xml = $request->getXml();

        $r = "\r\n";

        $request  = "POST {$this->path} HTTP/1.0$r";

        // Merged from WP #8145 - allow custom headers

        $this->headers['Host']          = $this->server;

        $this->headers['Content-Type']  = 'text/xml';

        $this->headers['User-Agent']    = $this->useragent;

        $this->headers['Content-Length']= $length;

        foreach( $this->headers as $header => $value ) {

            $request .= "{$header}: {$value}{$r}";

        }

        $request .= $r;

        $request .= $xml;

        // Now send the request

        if ($this->debug) {

            echo '<pre class="ixr_request">'.htmlspecialchars($request)."\n</pre>\n\n";

        }

        if ($this->timeout) {

            $fp = @fsockopen($this->server, $this->port, $errno, $errstr, $this->timeout);

        } else {

            $fp = @fsockopen($this->server, $this->port, $errno, $errstr);

        }

        if (!$fp) {

            $this->error = new IXR_Error(-32300, 'transport error - could not open socket');

            return false;

        }

        fputs($fp, $request);

        $contents = '';

        $debugContents = '';

        $gotFirstLine = false;

        $gettingHeaders = true;

        while (!feof($fp)) {

            $line = fgets($fp, 4096);

            if (!$gotFirstLine) {

                // Check line for '200'

                if (strstr($line, '200') === false) {

                    $this->error = new IXR_Error(-32300, 'transport error - HTTP status code was not 200');

                    return false;

                }

                $gotFirstLine = true;

            }

            if (trim($line) == '') {

                $gettingHeaders = false;

            }

            if (!$gettingHeaders) {

            	// merged from WP #12559 - remove trim

                $contents .= $line;

            }

            if ($this->debug) {

            	$debugContents .= $line;

            }

        }

        if ($this->debug) {

            echo '<pre class="ixr_response">'.htmlspecialchars($debugContents)."\n</pre>\n\n";

        }

        // Now parse what we've got back

        $this->message = new IXR_Message($contents);

        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;

    }

    function getResponse()

    {

        // methodResponses can only have one param - return that

        return $this->message->params[0];

    }

    function isError()

    {

        return (is_object($this->error));

    }

    function getErrorCode()

    {

        return $this->error->code;

    }

    function getErrorMessage()

    {

        return $this->error->message;

    }

}