private void DiscoCompleteCallback( IAsyncResult ar )
{
try
{
Packet p = _sm.Session.EndSend(ar);
if ( p == null || ! (p is DiscoveryItemsResponse) )
//this server probably doesn't support disco, try browse
BrowseForChatServers();
else
{
DiscoveryItemsResponse resp = WConvert.ToDiscoItemsResponse(p);
//request info for each of the items returned by the server
//the info will tell is whether or not it is a chat server
foreach (DiscoveryItem itm in resp.Items)
{
//chat servers usually don't use node, only request items with no node value
if (itm.Node.Equals(string.Empty))
{
DiscoveryInfoRequest req = new DiscoveryInfoRequest(itm.JID);
_sm.BeginSend(req.ToPacket, new AsyncCallback(ServiceInfoCallback));
}
}
}
}
catch
{
//this server probably doesn't support disco, try browse
BrowseForChatServers();
}
}
private void ChatServiceItemsCallback( IAsyncResult ar )
{
try
{
Packet p = _sm.Session.EndSend(ar);
if ((p != null) && (p is DiscoveryItemsResponse))
{
DiscoveryItemsResponse resp = WConvert.ToDiscoItemsResponse(p);
if (resp.Items.Count > 0)
//warning: this should be smarter as a service with many rooms will generate A LOT of traffic
foreach ( DiscoveryItem itm in resp.Items )
{
const int RoomItemsTimeout = 30000;
DiscoveryInfoRequest req = new DiscoveryInfoRequest(itm.JID, itm.Node);
_sm.BeginSend(req.ToPacket, RoomItemsTimeout, new AsyncCallback(RoomInfoCallback), ar.AsyncState);
}
}
}
catch {}
}
