private void OnMessage(object sender, Message msg)
{
if (msg.Body == null)
{
return;
}
var delay = msg["delay"];
string stamp = null;
if (delay != null)
{
stamp = delay.Attributes["stamp"].Value;
}
bool display = true;
ChatModel chat = null;
PersonModel person = null;
if (msg.Type != XmppMessageType.groupchat)
{
string jid = msg.From.Bare;
var contact = _RosterManager[jid];
string nickname = null;
if (contact == null || String.IsNullOrEmpty(contact.Nickname))
{
nickname = jid;
}
else
{
nickname = contact.Nickname;
}
PersonChatModel personChat = (PersonChatModel)Session.GetChat(jid, ChatType.Person, this);
if (personChat == null)
{
person = new PersonModel(jid, nickname, NetworkID,
Protocol, this);
personChat = Session.CreatePersonChat(
person, jid, nickname, this
);
Session.AddChat(personChat);
Session.SyncChat(personChat);
}
else
{
person = personChat.Person;
}
chat = personChat;
}
else
{
string group_jid = msg.From.Bare;
string group_name = group_jid;
string sender_jid = msg.From.ToString();
XmppGroupChatModel groupChat = (XmppGroupChatModel)Session.GetChat(group_jid, ChatType.Group, this);
if (groupChat == null)
{
// FIXME shouldn't happen?
groupChat = Session.CreateChat <XmppGroupChatModel>(
group_jid, group_name, this
);
Session.AddChat(groupChat);
Session.SyncChat(groupChat);
}
person = groupChat.GetPerson(msg.From.Resource);
if (person == null)
{
// happens in case of a delayed message if the participant has left meanwhile
person = new PersonModel(msg.From.Resource,
msg.From.Resource,
NetworkID, Protocol, this);
}
// XXX maybe only a Google Talk bug requires this:
if (stamp != null)
{
// XXX can't use > because of seconds precision :-(
if (stamp.CompareTo(groupChat.LatestSeenStamp) >= 0)
{
groupChat.LatestSeenStamp = stamp;
}
else
{
display = false; // already seen newer delayed message
}
if (groupChat.SeenNewMessages)
{
display = false; // already seen newer messages
}
}
else
{
groupChat.SeenNewMessages = true;
}
chat = groupChat;
}
if (display)
{
var builder = CreateMessageBuilder();
if (msg.Type != XmppMessageType.error)
{
builder.AppendMessage(person, msg.Body);
}
else
{
// TODO: nicer formatting
builder.AppendMessage(msg.Error.ToString());
}
if (stamp != null)
{
string format = DateTimeFormatInfo.InvariantInfo.UniversalSortableDateTimePattern.Replace(" ", "T");
builder.TimeStamp = DateTime.ParseExact(stamp, format, null);
}
Session.AddMessageToChat(chat, builder.ToMessage());
}
}
