private void ProcessTLVSMPMessage(byte[] smp_byte_data, OTR_TLV_TYPE tlv_type)
{
DebugPrint("Received SMP message with TLV of type " + tlv_type.ToString());
_smp_event_type_1 = OTR_SMP_EVENT.INVALID;
_smp_event_type_2 = OTR_SMP_EVENT.INVALID;
_smp_message = string.Empty;
StartSMPSession(false);
byte[] _message_byte_array = null;
byte[] _encoded_smp_bytes = _smp_manager.ProcessSMPMessage(smp_byte_data, tlv_type, ref _smp_event_type_1, ref _smp_event_type_2, ref _smp_message);
if (_smp_event_type_2 == OTR_SMP_EVENT.SUCCEEDED)
{
_otr_event_args = new OTREventArgs();
_otr_event_args.SetMessage("SMP completed succesfully");
_otr_event_args.SetOTREvent(OTR_EVENT.SMP_MESSAGE);
_otr_event_args.SetSMPEvent(OTR_SMP_EVENT.SUCCEEDED);
DoOTREvent(_otr_event_args);
EndSMPSession();
}
if ((_smp_event_type_1 == OTR_SMP_EVENT.SEND) &&
(_encoded_smp_bytes != null && _encoded_smp_bytes.Length > 0))
{
_message_byte_array = FormatMessageWtTLV(null, _encoded_smp_bytes, null);
if (_smp_max_fragement_length > 0)
EncryptFragments(_message_byte_array, _smp_max_fragement_length);
else
EncryptMessage(_message_byte_array, false);
}
else if (_smp_event_type_1 == OTR_SMP_EVENT.ABORT)
{
_otr_event_args = new OTREventArgs();
_otr_event_args.SetMessage(_smp_message);
_otr_event_args.SetOTREvent(OTR_EVENT.SMP_MESSAGE);
_otr_event_args.SetSMPEvent(OTR_SMP_EVENT.ABORT);
DoOTREvent(_otr_event_args);
EndSMPSession();
}
else if (_smp_event_type_1 == OTR_SMP_EVENT.FAILED)
{
_otr_event_args = new OTREventArgs();
_otr_event_args.SetMessage("Man in the middle attack suspected");
_otr_event_args.SetOTREvent(OTR_EVENT.SMP_MESSAGE);
_otr_event_args.SetSMPEvent(OTR_SMP_EVENT.FAILED);
DoOTREvent(_otr_event_args);
EndSMPSession();
}
else if (_smp_event_type_1 == OTR_SMP_EVENT.SUCCEEDED)
{
_otr_event_args = new OTREventArgs();
_otr_event_args.SetMessage("SMP completed succesfully");
_otr_event_args.SetOTREvent(OTR_EVENT.SMP_MESSAGE);
_otr_event_args.SetSMPEvent(OTR_SMP_EVENT.SUCCEEDED);
DoOTREvent(_otr_event_args);
EndSMPSession();
}
else
{
DebugPrint("ProcessTLVSMPMessage:Invalid SMP event");
EndSMPSession();
}
}
private void ProcessTLVSMPAbort(byte[] smp_abort_bytes)
{
DebugPrint("Abort SMP message was received from " + _my_buddy_unique_id);
_otr_event_args = new OTREventArgs();
_otr_event_args.SetMessage("SMP aborted based on request from " + _my_buddy_unique_id);
_otr_event_args.SetOTREvent(OTR_EVENT.SMP_MESSAGE);
_otr_event_args.SetSMPEvent(OTR_SMP_EVENT.ABORT);
DoOTREvent(_otr_event_args);
EndSMPSession();
}
