public static function receive(Application $app, SiteModel $siteModel = null)
    {
        $data = file_get_contents('php://input');
        $app['monolog']->addError("receivepingback.php got data " . $data);
        $pingback = ParsePingBack::parseFromData($data);
        if ($pingback) {
            $pbil = new \incominglinks\PingBackIncomingLink();
            $pbil->setSourceURL($pingback->getSourceUrl());
            $pbil->setTargetURL($pingback->getTargetUrl());
            $pbil->setReporterIp($_SERVER['REMOTE_ADDR']);
            $pbil->setReporterUseragent($_SERVER['HTTP_USER_AGENT']);
            $repo = new \repositories\IncomingLinkRepository();
            $repo->create($pbil, $siteModel);
            print '<?xml version="1.0" encoding="ISO-8859-1"?>
<methodResponse>
   <params>
      <param>
         <value><string>Reported</string></value>
      </param>
   </params>
</methodResponse>';
        } else {
            // TODO
        }
    }
    function testParse1()
    {
        $pingback = ParsePingBack::parseFromData('<?xml version="1.0" encoding="iso-8859-1"?>
<methodCall>
  <methodName>pingback.ping</methodName>
  <params>
   <param><value><string>http://www.example.com/index.php?p=71</string></value></param>
   <param><value><string>http://www.example2.com/index.php?p=72</string></value></param>
  </params>
</methodCall>');
        $this->assertEquals("http://www.example.com/index.php?p=71", $pingback->getSourceUrl());
        $this->assertEquals("http://www.example2.com/index.php?p=72", $pingback->getTargetUrl());
    }