/// <summary>
/// This method encrypts the message we want to send
/// and sends it either to one recipient (whisper)
/// or all online chat clients
/// </summary>
public void Send()
{
if (_channel != null && _viewModel.ChatInputText != "")
{
if (_channel.State == CommunicationState.Faulted)
{
HandleProxy();
}
else
{
//Create message, assign its properties
//encrypt message
string temp = "";
switch (_viewModel.SelectedCypher)
{
case (int)Cyphers.SimpleEncryption:
var cypher1 = new SimpleEncryption();
temp = cypher1.EncryptMessage(_viewModel.ChatInputText, _viewModel.Key);
break;
case (int)Cyphers.Rijndael:
var cypher2 = new Rijndael();
temp = cypher2.EncryptMessage(_viewModel.ChatInputText, _viewModel.Key);
break;
}
Message msg = new Message
{
Sender = _localClient.Name,
Time = DateTime.Now,
Content = temp
};
//If whisper mode is checked and an item is
//selected in the list box of clients, it will
//arrange a client object called receiver
//to whisper
if (_viewModel.WhisperBox)
{
if (_receiver != null)
{
_channel.WhisperAsync(msg, _receiver);
_viewModel.ChatInputText = "";
}
}
else
{
_channel.SayAsync(msg);
_viewModel.ChatInputText = "";
}
//Tell the service to tell back all clients that this client
//has just finished typing..
_channel.IsWritingAsync(null);
}
}
}
