3 * XMLRPC server acting as proxy for requests to other servers
4 * (useful e.g. for ajax-originated calls that can only connect back to
5 * the originating server).
7 * @author Gaetano Giunta
8 * @copyright (C) 2006-2015 G. Giunta
9 * @license code licensed under the BSD License: see file license.txt
12 include_once __DIR__ . "/../../src/Autoloader.php";
13 PhpXmlRpc\Autoloader::register();
16 * Forward an xmlrpc request to another server, and return to client the response received.
18 * @param PhpXmlRpc\Request $req (see method docs below for a description of the expected parameters)
20 * @return PhpXmlRpc\Response
22 function forward_request($req)
24 $encoder = new \PhpXmlRpc\Encoder();
28 $url = $encoder->decode($req->getParam(0));
29 $client = new PhpXmlRpc\Client($url);
31 if ($req->getNumParams() > 3) {
32 // we have to set some options onto the client.
33 // Note that if we do not untaint the received values, warnings might be generated...
34 $options = $encoder->decode($req->getParam(3));
35 foreach ($options as $key => $val) {
41 case 'RequestCompression':
42 $client->setRequestCompression($val);
45 $client->setSSLVerifyHost($val);
48 $client->setSSLVerifyPeer($val);
51 $timeout = (integer)$val;
57 // build call for remote server
58 /// @todo find a way to forward client info (such as IP) to server, either
59 /// - as xml comments in the payload, or
60 /// - using std http header conventions, such as X-forwarded-for...
61 $reqethod = $encoder->decode($req->getParam(1));
62 $pars = $req->getParam(2);
63 $req = new PhpXmlRpc\Request($reqethod);
64 for ($i = 0; $i < $pars->arraySize(); $i++) {
65 $req->addParam($pars->arraymem($i));
68 // add debug info into response we give back to caller
69 PhpXmlRpc\Server::xmlrpc_debugmsg("Sending to server $url the payload: " . $req->serialize());
71 return $client->send($req, $timeout);
75 $server = new PhpXmlRpc\Server(
77 'xmlrpcproxy.call' => array(
78 'function' => 'forward_request',
80 array('mixed', 'string', 'string', 'array'),
81 array('mixed', 'string', 'string', 'array', 'stuct'),
83 'docstring' => 'forwards xmlrpc calls to remote servers. Returns remote method\'s response. Accepts params: remote server url (might include basic auth credentials), method name, array of params, and (optionally) a struct containing call options',