public void StartComunication(string address)
{
if (this.HostAddress.Equals(address))
{
return;
}
if (clientSessions.ContainsKey(address))
{
PrintMessage.Print(string.Format("You are already connected to client: {0}", address));
return;
}
NetTcpBinding binding = new NetTcpBinding();
binding.SendTimeout = new TimeSpan(0, 5, 5);
binding.ReceiveTimeout = new TimeSpan(0, 5, 5);
binding.OpenTimeout = new TimeSpan(0, 5, 5);
binding.CloseTimeout = new TimeSpan(0, 5, 5);
IClientContract serverProxy = new ClientProxy(new EndpointAddress(address), binding, this);
byte[] sessionKey = RandomGenerateKey();
SessionData sd = new SessionData()
{
AesAlgorithm = new AES128_ECB(sessionKey), Proxy = serverProxy, Address = address
};
CertificateDto serverCert = serverProxy.SendCert(new CertificateDto(myCertificate, false));
if (!vaProxy.isCertificateValidate(serverCert.GetCert(false)))
{
PrintMessage.Print("Starting communication failed!");
return;
}
byte[] encryptedSessionKey = null;
try
{
RSACryptoServiceProvider publicKey = (RSACryptoServiceProvider)serverCert.GetCert(false).PublicKey.Key;
if (publicKey != null)
{
encryptedSessionKey = publicKey.Encrypt(sessionKey, true);
}
else
{
PrintMessage.Print("Error, public key is null");
return;
}
}
catch (Exception e)
{
PrintMessage.Print(string.Format("Error: {0}", e.Message));
}
bool success = serverProxy.SendKey(encryptedSessionKey);
if (success)
{
sqliteWrapper.InsertToTable(sd.Address);
object sessionInfo = serverProxy.GetSessionInfo(HostAddress);
if (sessionInfo != null)
{
string sessionId = System.Text.Encoding.UTF8.GetString(sd.AesAlgorithm.Decrypt((byte[])sessionInfo)).Trim();
string[] sessionIdSplit = sessionId.Split('|');
sd.CallbackSessionId = sessionIdSplit[0];
sd.ProxySessionId = sessionIdSplit[1];
lock (objLock)
{
clientSessions.Add(sd.Address, sd);
PrintMessage.Print("Session is opened");
}
}
}
else
{
PrintMessage.Print("Starting communication failed!");
}
}