public void OnPresence(Client client, Presence presence)
{
var clientContext = SessionModel.GetClientContext(client);
if (clientContext.Jid.Equals(presence.From, new CaseInsensitiveComparer()))
{
return;
}
var fromJid = presence.From.ToString().ToLower();
var capsKey = new CapsSource(client, fromJid);
ProcessedPresence(capsKey, presence);
}
public bool HasFeature(IInterlocutorResource interlocutorResource, string uri)
{
var client = ModelContext.GetClientByContact(interlocutorResource.Interlocutor);
var jid = interlocutorResource.Jid.ToString().ToLower();
var key = new CapsSource(client, jid);
CapsInfo capsInfo;
if (!_presentCaps.TryGetValue(key, out capsInfo))
{
return false;
}
return _discoveryDataAccess.HasFeature(capsInfo, uri);
}
public void RequestFeatures(CapsSource source, CapsInfo info)
{
if (_pendingRequests.Contains(info))
{
return;
}
_pendingRequests.Add(info);
var connection = GetConnection(source.Client);
var requestId = Guid.NewGuid().ToString("N");
_requestIdToCapsInfo.Add(requestId, info);
var iq = new DiscoInfoIq(IqType.get);
iq.Id = requestId;
iq.From = connection.MyJID;
iq.To = new Jid(source.EntityJid);
if (info.Hash != null && info.Node != null && info.Version != null)
{
iq.Query.Node = string.Format("{0}#{1}", info.Node, info.Version);
}
connection.Send(iq);
}
private void ProcessedPresence(CapsSource capsKey, Presence presence)
{
var capabilities = presence.Capabilities;
if (capabilities == null)
{
_presentCaps.Remove(capsKey);
return;
}
var version = capabilities.Version;
var hash = capabilities.Hash;
var node = capabilities.Node;
var info = new CapsInfo
{
Version = version,
Hash = hash,
Node = node,
};
if (_presentCaps.ContainsKey(capsKey))
{
var prevCaps = _presentCaps[capsKey];
if (prevCaps == info)
{
return;
}
}
_presentCaps[capsKey] = info;
if (!_discoveryDataAccess.HasCaps(info))
{
_discoveryNetAccess.RequestFeatures(capsKey, info);
}
}
protected bool Equals(CapsSource other)
{
return Equals(Client, other.Client) && string.Equals(EntityJid, other.EntityJid);
}