private Element ValidateClientStanza(Stanza stanza, XmppStream stream)
{
if (!stream.Authenticated)
{
if (!(stanza is AuthIq) && (stanza is IQ && !(((IQ)stanza).Query is Register)))
{
return(XmppStanzaError.ToNotAuthorized(stanza));
}
}
//remove empty jids
if (stanza.HasFrom && string.IsNullOrEmpty(stanza.From.ToString()))
{
stanza.From = null;
}
if (stanza.HasTo && string.IsNullOrEmpty(stanza.To.ToString()))
{
stanza.To = null;
}
//prep strings
stanza.From = NodePrep(stanza.From);
stanza.To = NodePrep(stanza.To);
if (!ValidateJid(stanza.From) || !ValidateJid(stanza.To))
{
return(XmppStanzaError.ToBadRequest(stanza));
}
if (stanza.HasFrom)
{
if (!stream.JidBinded(stanza.From))
{
// return null if we have from in bind iq (for qutIM 0.3 client)
if (!(stanza is IQ) || ((IQ)stanza).Bind == null || ((IQ)stanza).Bind.Resource != stanza.From.Resource)
{
return(XmppStreamError.InvalidFrom);
}
}
}
else
{
if (stream.MultipleResources)
{
return(XmppStanzaError.ToConflict(stanza));
}
stanza.From = new Jid(string.Format("{0}@{1}/{2}", stream.User, stream.Domain, 0 < stream.Resources.Count ? stream.Resources[0] : null));
}
if (stanza is Message)
{
var message = (Message)stanza;
if (message.Type == MessageType.chat && message.To == null)
{
return(XmppStanzaError.ToRecipientUnavailable(stanza));
}
}
return(null);
}
private IQ GetUserDisco(XmppStream stream, IQ iq, XmppHandlerContext context)
{
if (iq.To.HasResource)
{
var session = context.SessionManager.GetSession(iq.To);
if (session != null && iq.Query is DiscoInfo)
{
var discoInfo = session.ClientInfo.GetDiscoInfo(((DiscoInfo)iq.Query).Node);
if (discoInfo != null)
{
iq.Query = discoInfo;
return(ToResult(iq));
}
}
if (session == null)
{
return(XmppStanzaError.ToRecipientUnavailable(iq));
}
context.Sender.SendTo(session, iq);
IdleWatcher.StartWatch(iq.Id, TimeSpan.FromSeconds(4.5f), IQLost, iq);
}
else
{
if (iq.Query is DiscoInfo && context.UserManager.IsUserExists(iq.To))
{
((DiscoInfo)iq.Query).AddIdentity(new DiscoIdentity("registered", "account"));
return(ToResult(iq));
}
else if (iq.Query is DiscoItems)
{
foreach (var s in context.SessionManager.GetBareJidSessions(iq.To))
{
((DiscoItems)iq.Query).AddDiscoItem(new DiscoItem()
{
Jid = s.Jid
});
}
return(ToResult(iq));
}
return(XmppStanzaError.ToServiceUnavailable(iq));
}
return(null);
}
public override IQ HandleIQ(XmppStream stream, IQ iq, XmppHandlerContext context)
{
if (iq.Type != IqType.get || !iq.HasTo)
{
return(XmppStanzaError.ToNotAcceptable(iq));
}
var currSession = context.SessionManager.GetSession(iq.From);
if (currSession == null || !currSession.Available)
{
return(XmppStanzaError.ToForbidden(iq));
}
double seconds = 0;//available
if (iq.To.IsServer)
{
seconds = (DateTime.UtcNow - startedTime).TotalSeconds;
}
else
{
var session = context.SessionManager.GetSession(iq.To);
if (session == null || !session.Available)
{
var lastActivity = context.StorageManager.OfflineStorage.GetLastActivity(iq.To);
if (lastActivity != null)
{
seconds = (DateTime.UtcNow - lastActivity.LogoutDateTime).TotalSeconds;
iq.Query.Value = lastActivity.Status;
}
else
{
return(XmppStanzaError.ToRecipientUnavailable(iq));
}
}
}
((Last)(iq.Query)).Seconds = (int)seconds;
iq.Type = IqType.result;
iq.SwitchDirection();
return(iq);
}
public override IQ HandleIQ(XmppStream stream, IQ iq, XmppHandlerContext context)
{
if (!iq.HasTo || !iq.To.HasUser)
{
return(XmppStanzaError.ToServiceUnavailable(iq));
}
var session = context.SessionManager.GetSession(iq.To);
if (session != null)
{
context.Sender.SendTo(session, iq);
return(null);
}
else
{
return(XmppStanzaError.ToRecipientUnavailable(iq));
}
}
public override IQ HandleIQ(XmppStream stream, IQ iq, XmppHandlerContext context)
{
var answer = new IQ(IqType.result)
{
Id = iq.Id,
To = iq.From,
From = iq.To,
};
//iq sended to server
if (iq.Type == IqType.get && (!iq.HasTo || iq.To.IsServer || iq.To == iq.From))
{
if (iq.Query is Version)
{
answer.Query = new Version()
{
Name = "TeamLab Jabber Server",
Os = System.Environment.OSVersion.ToString(),
Ver = "1.0",
};
return(answer);
}
else if (iq.Query is Ping)
{
return(answer);
}
return(XmppStanzaError.ToServiceUnavailable(iq));
}
if (iq.Type == IqType.get && iq.HasTo)
{
//resend iq
var sessionTo = context.SessionManager.GetSession(iq.To);
var sessionFrom = context.SessionManager.GetSession(iq.From);
if (sessionTo != null && sessionFrom != null)
{
if (string.IsNullOrEmpty(iq.Id))
{
iq.Id = System.Guid.NewGuid().ToString("N");
}
IdleWatcher.StartWatch(
iq.Id + iq.From,
System.TimeSpan.FromSeconds(3),
(s, e) => { context.Sender.SendTo(sessionFrom, XmppStanzaError.ToServiceUnavailable(iq)); });
context.Sender.SendTo(sessionTo, iq);
}
else
{
return(XmppStanzaError.ToRecipientUnavailable(iq));
}
}
if (iq.Type == IqType.error || iq.Type == IqType.result)
{
if (!iq.HasTo)
{
return(XmppStanzaError.ToBadRequest(iq));
}
IdleWatcher.StopWatch(iq.Id + iq.To);
var session = context.SessionManager.GetSession(iq.To);
if (session != null)
{
context.Sender.SendTo(session, iq);
}
}
return(null);
}