//Estabilish crypto tunnel and save session keys to CryptoManager object
static CryptoManager Handshake(Networker networker)
{
CryptoManager cryptoManager = null;
string AESKey = CryptoManager.GetAESKeyB64();
string response = networker.SendMessageAndWaitResponse(
CryptoManager.EncryptRSA2B64("message=handshake&key=" + AESKey)
);
if (!String.IsNullOrEmpty(response))
{
CryptoManager cryptoManagerTest = new CryptoManager(AESKey, response);
string responseConnected = ChatManager.SendMessageAndWaitResponseCrypted(ServerSpecificStrings.MesageOk, networker, cryptoManagerTest);
if (responseConnected.Equals(ServerSpecificStrings.MesageOk))
{
cryptoManager = cryptoManagerTest;
}
}
return(cryptoManager);
}
//Trying to get positive response from server, if all OK, then create ChatManager
//This function contains server-specific strings
public static ChatManager TryStartChatManager(Networker networker, string serverRequest)
{
CryptoManager cryptoManager = Handshake(networker);
if (cryptoManager != null)
{
//message = serverRequest
string response = ChatManager.SendMessageAndWaitResponseCrypted(serverRequest, networker, cryptoManager);
if (response.Equals(ServerSpecificStrings.MesageOk))
{
return(new ChatManager(networker, cryptoManager));
}
else
{
return(null);
}
}
else
{
return(null);
}
}
string SendMessageAndWaitResponseCrypted(string message, CryptoManager cryptoManager)
{
return(ChatManager.SendMessageAndWaitResponseCrypted(message, m_networker, cryptoManager));
}