Smuxi.Engine.XmppProtocolManager.GetJidFromNickname C# (CSharp) Method

        Jid GetJidFromNickname(string nickname)
        {
            XmppPersonModel it;
            Jid jid = nickname;
            if (Contacts.TryGetValue(jid, out it)) {
                // nickname is a jid we know
                return jid;
            }
            if (Contacts.TryGetValue(jid.Bare, out it)) {
                // is a jid with resource
                return jid;
            }

            // arg is not a jid in our rostermanager
            // find a jid to which the nickname belongs
            foreach (var pair in Contacts) {
                if (pair.Value.IdentityName != null &&
                    pair.Value.IdentityName.Replace(" ", "_") == nickname) {
                    return pair.Key;
                }
            }
            // not found in roster, message directly to jid
            // TODO: check jid for validity
            return jid;
        }