private IQ ProcessBind(XmppStream stream, IQ iq, XmppHandlerContext context) { if (iq.Type != IqType.set) { return(XmppStanzaError.ToBadRequest(iq)); } var answer = new IQ(IqType.result); answer.Id = iq.Id; var bind = (Bind)iq.Bind; var resource = !string.IsNullOrEmpty(bind.Resource) ? bind.Resource : stream.User; if (bind.TagName.Equals("bind", StringComparison.OrdinalIgnoreCase)) { var jid = new Jid(stream.User, stream.Domain, resource); var session = context.SessionManager.GetSession(jid); if (session != null) { if (session.Stream.Id != stream.Id) { context.Sender.SendToAndClose(session.Stream, XmppStreamError.Conflict); answer.AddTag("newTalkWindow", "true"); } else { return(XmppStanzaError.ToConflict(iq)); } } stream.BindResource(resource); context.SessionManager.AddSession(new XmppSession(jid, stream)); answer.Bind = new Bind(jid); } else if (bind.TagName.Equals("unbind", StringComparison.OrdinalIgnoreCase)) { if (!stream.Resources.Contains(resource)) { return(XmppStanzaError.ToNotFound(iq)); } context.SessionManager.CloseSession(iq.From); stream.UnbindResource(resource); if (stream.Resources.Count == 0) { context.Sender.CloseStream(stream); } } else { return(XmppStanzaError.ToBadRequest(iq)); } if (stream.MultipleResources) { answer.To = iq.From; } return(answer); }
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); }
public override void ElementHandle(XmppStream stream, Element element, XmppHandlerContext context) { var iq = (AuthIq)element; if (stream.Authenticated) { context.Sender.SendTo(stream, XmppStanzaError.ToConflict(iq)); return; } if (iq.Type == IqType.get) { ProcessAuthIQGet(stream, iq, context); } else if (iq.Type == IqType.set) { ProcessAuthIQSet(stream, iq, context); } else { context.Sender.SendTo(stream, XmppStanzaError.ToNotAcceptable(iq)); } }
private IQ SetRegister(XmppStream stream, IQ iq, XmppHandlerContext context) { var register = (Register)iq.Query; iq.Type = IqType.result; if (register.RemoveAccount) { if (!stream.Authenticated || !iq.From.HasUser) { context.Sender.SendToAndClose(stream, XmppStreamError.NotAuthorized); } context.UserManager.RemoveUser(iq.From); foreach (var s in context.SessionManager.GetBareJidSessions(iq.From)) { if (s.Stream.Id == stream.Id) { continue; } context.Sender.SendToAndClose(s.Stream, XmppStreamError.Conflict); } //TODO: remove roster subscriptions register.RemoveAllChildNodes(); iq.SwitchDirection(); return(iq); } if (string.IsNullOrEmpty(register.Username) || string.IsNullOrEmpty(register.Password) || Stringprep.NamePrep(register.Username) != register.Username) { var error = XmppStanzaError.ToNotAcceptable(iq); if (string.IsNullOrEmpty(register.Username)) { error.Error.Message = "Empty required field Username."; } else if (string.IsNullOrEmpty(register.Password)) { error.Error.Message = "Empty required field Password."; } else if (Stringprep.NamePrep(register.Username) != register.Username) { error.Error.Message = "Invalid character."; } return(error); } var userJid = new Jid(register.Username, stream.Domain, null); if (context.UserManager.IsUserExists(userJid)) { return(XmppStanzaError.ToConflict(iq)); } var user = new User(userJid, register.Password); context.UserManager.SaveUser(user); register.RemoveAllChildNodes(); if (stream.Authenticated) { iq.SwitchDirection(); } else { iq.To = null; } iq.From = null; return(iq); }