public void notify(Packet packet)
{
packet.To = null;
packet.From = null;
if (packet.getSession().getStatus() != Session.SessionStatus.authenticated)
{
//can not send message:user is not authenticated
//Error Monitoring must be implemented
MessageHandler.deliverPacket(packet);
return;
}
User user = userIndex.getUser(packet.getSession());
if (packet.Type.Equals("set"))
{
user.getRoster().updateRoster(packet);
return;
}
if (packet.Type.Equals("get"))
{
packet.Type = "result";
JabberID jidTo =packet.getSession().getJID();
packet.To = jidTo.User + "@" + jidTo.Domain;
// packet.From = null;
packet.removeAttribute("from");
packet.getChildren().Clear();
user.getRoster().getPacket().setParent(packet);
MessageHandler.deliverPacket(packet);
return;
}
//error in packet
MessageHandler.deliverPacket(packet);
}
}//getPacket
public void updateRoster(Packet packet)
{
//Extract the query packet
Packet rosterQuery = packet.getFirstChild("query");
rosterQuery.setAttribute("xmlns", "jabber:iq:roster");
foreach (object rosterItems in rosterQuery.getChildren())
{
//for each <item> packet in the query
Object child = rosterItems;
if (child is Packet)
{
Packet itemPacket = child as Packet;
String subJID = itemPacket.getAttribute("jid");
//create Subscriber object if needed
//Subscriber sendersSubscriberItem = this.subscribers[subJID] as Subscriber;
if ((Server.JabberServer.RosterHashtable[this.user] as UserRoster) == null)
{
Server.JabberServer.RosterHashtable[this.user] = new UserRoster();
}
Subscriber sub = (Server.JabberServer.RosterHashtable[this.user] as UserRoster).subscribers[subJID] as Subscriber;
if (sub == null)
{
sub = new Subscriber();
sub.subscription = "none";
sub.ask = null;
(Server.JabberServer.RosterHashtable[this.user] as UserRoster).subscribers.Add(subJID, sub);
}
if (itemPacket.getAttribute("subscription") != null)
{
//signal to remove
if (itemPacket.getAttribute("subscription").Equals("remove"))
{
//remove from subscribers item
JabberID otherID = new JabberID(subJID);
(Server.JabberServer.RosterHashtable[this.user] as UserRoster).subscribers.Remove(otherID.ToString());
if ((Server.JabberServer.RosterHashtable[this.user] as UserRoster).items.ContainsKey(subJID))
{
//remove <item> packet
(Server.JabberServer.RosterHashtable[this.user] as UserRoster).items.Remove(subJID);
}
if ((Server.JabberServer.RosterHashtable[otherID.User] as UserRoster) == null)
{
Server.JabberServer.RosterHashtable[otherID.User] = new UserRoster();
}
//set only subscription=none from other item
sub = ((Server.JabberServer.RosterHashtable[otherID.User] as UserRoster).subscribers[this.user + "@" + Server.JabberServer.server_name]) as Subscriber;
if (sub == null)
{
sub = new Subscriber();
}
sub.subscription = "none";
sub.ask = null;
(Server.JabberServer.RosterHashtable[otherID.User] as UserRoster).subscribers[this.user + "@" + Server.JabberServer.server_name] = sub;
//(Server.JabberServer.RosterHashtable[subJID] as UserRoster).subscribers.Add(subJID, sendersSubscriberItem);
//}
if ((Server.JabberServer.RosterHashtable[otherID.User] as UserRoster).items.ContainsKey(this.user + "@" + Server.JabberServer.server_name))
{
//update <item> packet
//itemPacket.removeAttribute("subscription");
Packet mypacket = (Server.JabberServer.RosterHashtable[otherID.User] as UserRoster).items[this.user + "@" + Server.JabberServer.server_name] as Packet;
mypacket.setAttribute("subscription", "none");
mypacket.setAttribute("ask", null);
(Server.JabberServer.RosterHashtable[otherID.User] as UserRoster).items[this.user + "@" + Server.JabberServer.server_name] = mypacket;
}
}
}
else
{
//update <item> with the subscriber info for roster push
itemPacket.setAttribute("subscription", sub.subscription);
itemPacket.setAttribute("ask", sub.ask);
//Packet test = items[subJID];
if (!(Server.JabberServer.RosterHashtable[this.user] as UserRoster).items.ContainsKey(subJID))
{
//store updated <item> packet
(Server.JabberServer.RosterHashtable[this.user] as UserRoster).items.Add(subJID, itemPacket);
}
else
{
(Server.JabberServer.RosterHashtable[this.user] as UserRoster).items[subJID] = itemPacket;
}
}
}
}
//Roster push
packet.Type = "set";
JabberID jidTo = packet.getSession().getJID();
packet.To = jidTo.User + "@" + jidTo.Domain;
packet.removeAttribute("from");
//needs to be verified
MessageHandler.deliverPacket(packet);
}//update roster