rpc.php

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    var $port;
    var $errno;
    var $errstring;
    var $debug=0;
    var $username="";
    var $password="";

    function XML_RPC_Client($path, $server, $port = 80,
                            $proxy = '', $proxy_port = 8080,
                            $proxy_user = '', $proxy_pass = '')
    {
        $this->port=$port;
        $this->server=$server;
        $this->path=$path;
        $this->proxy = $proxy;
        $this->proxy_port = $proxy_port;
        $this->proxy_user = $proxy_user;
        $this->proxy_pass = $proxy_pass;
    }

    function setDebug($in)
    {
        if ($in) {
            $this->debug=1;
        } else {
            $this->debug=0;
        }
    }

    function setCredentials($u, $p)
    {
        $this->username=$u;
        $this->password=$p;
    }

    function send($msg, $timeout=0)
    {
        // where msg is an xmlrpcmsg
        $msg->debug=$this->debug;
        return $this->sendPayloadHTTP10($msg, $this->server, $this->port,
                                        $timeout, $this->username,
                                        $this->password);
    }

    function sendPayloadHTTP10($msg, $server, $port, $timeout=0,
                               $username="", $password="")
    {
        // If we're using a proxy open a socket to the proxy server instead to the xml-rpc server
        if($this->proxy){
            if($timeout > 0) {
                $fp=fsockopen($this->proxy, $this->proxy_port, $this->errno, $this->errstr, $timeout);
            }
            else {
                $fp=fsockopen($this->proxy, $this->proxy_port, $this->errno, $this->errstr);
            }
        }
        else {
            if($timeout > 0) {
                $fp=fsockopen($server, $port, $this->errno, $this->errstr, $timeout);
            }
            else {
                $fp=fsockopen($server, $port, $this->errno, $this->errstr);
            }
        }

        if(!$fp && $this->proxy) {
            PEAR::raiseError("Connection to proxy server ".$this->proxy.":".$this->proxy_port." failed");
        }
        else if(!$fp) {
            PEAR::raiseError("Connection to RPC server ".$this->server." failed");
        }

        // Only create the payload if it was not created previously
        if(empty($msg->payload)) $msg->createPayload();

        // thanks to Grant Rauscher <[e-mail]>
        // for this
        $credentials="";
        if ($username!="") {
            $credentials="Authorization: Basic " .
                base64_encode($username . ":" . $password) . "\r\n";
        }


        if($this->proxy) {
            $op = "POST http://" . $this->server;

            if($this->proxy_port) {
                $op .= ":" . $this->port;
            }
        }
        else {
           $op = "POST ";
        }

        $op .= $this->path. " HTTP/1.0\r\nUser-Agent: PHP XMLRPC 1.0\r\n" .
            "Host: ". $this->server  . "\r\n";
        if ($this->proxy && $this->proxy_user != '') {
            $op .= 'Proxy-Authorization: Basic ' .
                base64_encode($this->proxy_user . ':' . $this->proxy_pass) .
                "\r\n";
        }
        $op .= $credentials .
            "Content-Type: text/xml\r\nContent-Length: " .
            strlen($msg->payload) . "\r\n\r\n" .
            $msg->payload;

        // print($op);

        if (!fputs($fp, $op, strlen($op))) {
            $this->errstr="Write error";
            return 0;
        }
        $resp=$msg->parseResponseFile($fp);
        fclose($fp);
        return $resp;
    }
}


class XML_RPC_Response
{
    var $xv;
    var $fn;
    var $fs;
    var $hdrs;

    function XML_RPC_Response($val, $fcode=0, $fstr="")
    {
        if ($fcode!=0) {
            $this->fn=$fcode;
            $this->fs=htmlspecialchars($fstr);
        } else {
            $this->xv=$val;
        }
    }

    function faultCode()
    {
        if (isset($this->fn))
            return $this->fn;
        else
            return 0;
    }

    function faultString() { return $this->fs; }
    function value() { return $this->xv; }

    function serialize() {
        $rs="<methodResponse>\n";
        if ($this->fn) {
            $rs.="<fault>
  <value>
    <struct>
      <member>
        <name>faultCode</name>
        <value><int>" . $this->fn . "</int></value>
      </member>
      <member>
        <name>faultString</name>
        <value><string>" . $this->fs . "</string></value>
      </member>
    </struct>
  </value>
</fault>";
        } else {
            $xv = $this->xv;
            $rs.="<params>\n<param>\n" . $xv->serialize() .
        "</param>\n</params>";
        }
        $rs.="\n</methodResponse>";
        return $rs;
    }
}


class XML_RPC_Message
{
    var $payload;
    var $methodname;
    var $params = array();
    var $debug=0;

    function XML_RPC_Message($meth, $pars=0)
    {
        $this->methodname=$meth;
        if (is_array($pars) && sizeof($pars)>0) {
            for($i=0; $i<sizeof($pars); $i++)
                $this->addParam($pars[$i]);
        }
    }

    function xml_header()
    {
    return "<?xml version=\"1.0\"?>\n<methodCall>\n";
    }

    function xml_footer()
    {
    return "</methodCall>\n";
    }

    function createPayload()
    {
        $this->payload=$this->xml_header();
        $this->payload.="<methodName>" . $this->methodname . "</methodName>\n";
        //  if (sizeof($this->params)) {
            $this->payload.="<params>\n";
            for($i=0; $i<sizeof($this->params); $i++) {
                $p=$this->params[$i];
                $this->payload.="<param>\n" . $p->serialize() .
                    "</param>\n";
            }
            $this->payload.="</params>\n";
        // }
        $this->payload.=$this->xml_footer();
        $this->payload=str_replace("\n", "\r\n", $this->payload);
    }

    function method($meth="")
    {
        if ($meth!="") {
            $this->methodname=$meth;
        }
        return $this->methodname;
    }

    function serialize()
    {
        $this->createPayload();
        return $this->payload;
    }

    function addParam($par) { $this->params[]=$par; }
    function getParam($i) { return $this->params[$i]; }
    function getNumParams() { return sizeof($this->params); }

    function parseResponseFile($fp)
    {
        $ipd="";

        while($data=fread($fp, 32768)) {
            $ipd.=$data;
        }
        return $this->parseResponse($ipd);
    }

    function parseResponse($data="")
    {
        global $XML_RPC_xh,$XML_RPC_err,$XML_RPC_str;
        global $XML_RPC_defencoding;

        $parser = xml_parser_create($XML_RPC_defencoding);

        $XML_RPC_xh[$parser]=array();

        $XML_RPC_xh[$parser]['st']="";
        $XML_RPC_xh[$parser]['cm']=0;
        $XML_RPC_xh[$parser]['isf']=0;
        $XML_RPC_xh[$parser]['ac']="";
        $XML_RPC_xh[$parser]['qt']="";

        xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
        xml_set_element_handler($parser, "XML_RPC_se", "XML_RPC_ee");
        xml_set_character_data_handler($parser, "XML_RPC_cd");
        xml_set_default_handler($parser, "XML_RPC_dh");
        $xmlrpc_value = new XML_RPC_Value;

        $hdrfnd=0;
        if ($this->debug) {
            print "<PRE>---GOT---\n";
            print isset($_SERVER['SERVER_PROTOCOL']) ? htmlspecialchars($data) : $data;
            print "\n---END---\n</PRE>";
        }
        // see if we got an HTTP 200 OK, else bomb
        // but only do this if we're using the HTTP protocol.
        if (ereg("^HTTP",$data) &&
            !ereg("^HTTP/[0-9\.]+ 200 ", $data)) {
                $errstr= substr($data, 0, strpos($data, "\n")-1);
                error_log("HTTP error, got response: " .$errstr);
                $r=new XML_RPC_Response(0, $XML_RPC_err["http_error"],
                                        $XML_RPC_str["http_error"]. " (" .
                                        $errstr . ")");
                xml_parser_free($parser);
                return $r;
        }
        // gotta get rid of headers here
          
        
        if ((!$hdrfnd) && ($brpos = strpos($data,"\r\n\r\n"))) {
            $XML_RPC_xh[$parser]['ha'] = substr($data,0,$brpos);
            $data= substr($data,$brpos+4);
            $hdrfnd=1;
        }

        if (!xml_parse($parser, $data, sizeof($data))) {
            // thanks to Peter Kocks <[e-mail]>
            if((xml_get_current_line_number($parser)) == 1)
                $errstr = "XML error at line 1, check URL";
            else
                $errstr = sprintf("XML error: %s at line %d",
                                  xml_error_string(xml_get_error_code($parser)),
                                  xml_get_current_line_number($parser));
            error_log($errstr);
            $r=new XML_RPC_Response(0, $XML_RPC_err["invalid_return"],
                                    $XML_RPC_str["invalid_return"]);
            xml_parser_free($parser);
            return $r;
        }
        xml_parser_free($parser);
        if ($this->debug) {
            print "<PRE>---EVALING---[" .
            strlen($XML_RPC_xh[$parser]['st']) . " chars]---\n" .
            htmlspecialchars($XML_RPC_xh[$parser]['st']) . ";\n---END---</PRE>";
        }
        if (strlen($XML_RPC_xh[$parser]['st'])==0) {
            // then something odd has happened
            // and it's time to generate a client side error
            // indicating something odd went on
            $r=new XML_RPC_Response(0, $XML_RPC_err["invalid_return"],
                                       $XML_RPC_str["invalid_return"]);
        } else {
            eval('$v=' . $XML_RPC_xh[$parser]['st'] . '; $allOK=1;');
            if ($XML_RPC_xh[$parser]['isf']) {
                $f=$v->structmem("faultCode");
                $fs=$v->structmem("faultString");
                $r=new XML_RPC_Response($v, $f->scalarval(),
                                            $fs->scalarval());
            } else {
                $r=new XML_RPC_Response($v);
            }
        }
        $r->hdrs=split("\r?\n", $XML_RPC_xh[$parser]['ha'][1]);
        return $r;
    }

}


class XML_RPC_Value
{
    var $me=array();
    var $mytype=0;

    function XML_RPC_Value($val=-1, $type="")
    {
        global $XML_RPC_Types;
        $this->me=array();
        $this->mytype=0;
        if ($val!=-1 || $type!="") {
            if ($type=="") $type="string";
            if ($XML_RPC_Types[$type]==1) {
                $this->addScalar($val,$type);
            }
            else if ($XML_RPC_Types[$type]==2)
                $this->addArray($val);
            else if ($XML_RPC_Types[$type]==3)
                $this->addStruct($val);
        }
    }

    function addScalar($val, $type="string")
    {
        global $XML_RPC_Types, $XML_RPC_Boolean;

        if ($this->mytype==1) {
            echo "<B>XML_RPC_Value</B>: scalar can have only one value<BR>";