// read links from the webfinger
$links = get_links($acct);
echo json_encode($links);
break;
case 'POST':
// save links to the webfinger via xrdp
$body = file_get_contents('php://input');
$newlinks = json_decode($body);
$oldlinks = get_links($acct);
$toDel = array_diff($oldlinks, $newlinks);
$toAdd = array_diff($newlinks, $oldlinks);
$url = 'http://xrdpdemo.appspot.com/xrdp';
$client = new XRDPClient($url);
foreach ($toAdd as $link) {
$Link = new Link("http://oexchange.org/spec/0.8/rel/user-target", "application/xrd+xml", $link, "");
$client->add($acct, $Link);
}
foreach ($toDel as $link) {
$Link = new Link("http://oexchange.org/spec/0.8/rel/user-target", "application/xrd+xml", $link, "");
$client->delete($acct, $Link);
}
break;
}
function get_links($acct)
{
$url = 'http://xrdpdemo.appspot.com/xrdp';
$client = new XRDPClient($url);
$xrddata = $client->get($acct);
$links = array();
$xrd = simplexml_load_string($xrddata);
foreach ($xrd->Link as $link) {
