demo/server/proxy.php ➔ forward_request()

Complexity

Conditions	10
Paths	4

Size

Total Lines	51
Code Lines	32

Duplication

Lines	0
Ratio	0 %

Importance

Changes	4
Bugs	1	Features	0

<?php
function forward_request($req)
{
    $encoder = new \PhpXmlRpc\Encoder();

    // create client
    $timeout = 0;
    $url = $encoder->decode($req->getParam(0));
    $client = new PhpXmlRpc\Client($url);

    if ($req->getNumParams() > 3) {
        // we have to set some options onto the client.
        // Note that if we do not untaint the received values, warnings might be generated...
        $options = $encoder->decode($req->getParam(3));
        foreach ($options as $key => $val) {
            switch ($key) {
                case 'Cookie':
                    break;
                case 'Credentials':
                    break;
                case 'RequestCompression':
                    $client->setRequestCompression($val);
                    break;
                case 'SSLVerifyHost':
                    $client->setSSLVerifyHost($val);
                    break;
                case 'SSLVerifyPeer':
                    $client->setSSLVerifyPeer($val);
                    break;
                case 'Timeout':
                    $timeout = (integer)$val;
                    break;
            } // switch
        }
    }

    // build call for remote server
    /// @todo find a way to forward client info (such as IP) to server, either
    /// - as xml comments in the payload, or
    /// - using std http header conventions, such as X-forwarded-for...
    $reqMethod = $encoder->decode($req->getParam(1));
    $pars = $req->getParam(2);
    $req = new PhpXmlRpc\Request($reqMethod);
    foreach ($pars as $par) {
        $req->addParam($par);
    }

    // add debug info into response we give back to caller
    PhpXmlRpc\Server::xmlrpc_debugmsg("Sending to server $url the payload: " . $req->serialize());

    return $client->send($req, $timeout);
}