public static bool Handshake(string IPAddr, int port, bool anon, string username, string password, ConnectionScreen connSc = null)
{
if (NetworkManager.receiving == true)
{
NetworkManager.Disconnect();
return(true);
}
if (NetworkManager.Connect(IPAddr, port, (bool)anon))
{
try
{
NetworkManager.SendMessage("serverInfoRequest", "", enc: false);
Dictionary <string, string> message = NetworkManager.ReceiveMessage(); // Receive serverInfo
KeyGenerator.SecretKey = KeyGenerator.GetUniqueKey(16);
NetworkManager.SendMessage("clientSecret", EncryptionManager.RSAEncrypt(KeyGenerator.SecretKey, message["data"].ToString()), enc: false);
message = NetworkManager.ReceiveMessage(true); // Receive gotSecret
string version = ConfigManager.GetSetting("version");
List <string> connRequest = new List <string> {
username, password, version
};
string jsonConnReq = JsonConvert.SerializeObject(connRequest);
NetworkManager.SendMessage("connectionRequest", jsonConnReq);
message = NetworkManager.ReceiveMessage(true);
if (message["messagetype"] == "CRAccepted")
{
NetworkManager.ReceiveMessages();
VisualManager.ClearUsers();
VisualManager.ClearChan();
VisualManager.SystemMessage("Handshake complete");
if (connSc != null)
{
connSc.Close();
}
handshakeInfo["ip"] = IPAddr;
handshakeInfo["port"] = port;
handshakeInfo["username"] = username;
handshakeInfo["password"] = password;
handshakeInfo["anon"] = anon;
return(true);
}
else if (message["messagetype"] == "CRDenied")
{
VisualManager.SystemMessage("Connection denied - " + message["data"]);
if (connSc != null)
{
connSc.Close();
}
return(false);
}
return(false);
}
catch (System.Net.Sockets.SocketException)
{
VisualManager.SystemMessage("Connection was lost during handshake");
if (connSc != null)
{
connSc.Close();
}
return(false);
}
}
else
{
VisualManager.SystemMessage("Connection failed");
return(false);
}
}
public static void RecvLoop()
{
ASCIIEncoding ascii = new ASCIIEncoding();
byte[] bytes = new byte[20480];
try
{
Queue netQueue = new Queue();
while (receiving == true)
{
int bytesRec = conn.Receive(bytes);
string jsonData = Encoding.UTF8.GetString(bytes, 0, bytesRec);
netQueue.Clear();
if (jsonData.Length > 0)
{
if (jsonData[0].Equals('[') && jsonData[(jsonData.Length - 1)].Equals(']'))
{
netQueue.Enqueue(jsonData);
}
else
{
string incompleteMessage = jsonData;
bool messageComplete = false;
while (messageComplete == false)
{
bytesRec = conn.Receive(bytes);
jsonData = Encoding.UTF8.GetString(bytes, 0, bytesRec);
if (jsonData[(jsonData.Length - 1)].Equals(']'))
{
messageComplete = true;
incompleteMessage += jsonData;
netQueue.Enqueue(incompleteMessage);
}
else
{
incompleteMessage += jsonData;
}
}
}
}
foreach (string netMessage in netQueue)
{
List <string> encryptedData = JsonConvert.DeserializeObject <List <string> >(netMessage);
jsonData = EncryptionManager.Decrypt(encryptedData[0], KeyGenerator.SecretKey, encryptedData[1]);
Dictionary <string, string> message = JsonConvert.DeserializeObject <Dictionary <string, string> >(jsonData);
switch (message["messagetype"])
{
case "serverData":
{
Net.serverInfo.Handle(message);
}
break;
case "outboundMessage":
{
Net.outboundMessage.Handle(message);
}
break;
case "channelUpdate":
{
Net.channelUpdate.Handle(message);
}
break;
case "userlistUpdate":
{
// Placeholder
}
break;
case "channelHistory":
{
Net.channelHistory.Handle(message);
}
break;
case "additionalHistory":
{
Net.additionalHistory.Handle(message);
}
break;
case "commandData":
{
Net.commandData.Handle(message);
}
break;
case "connectionTerminated":
{
Net.connectionTerminated.Handle(message);
}
break;
case "errorOccured":
{
MessageBox.Show("Error - " + message["data"]);
}
break;
default:
{
MessageBox.Show("Error - Unknown messagetype received");
}
break;
}
}
}
}
catch (System.Net.Sockets.SocketException)
{
if (receiving == true)
{
NetworkManager.serverInfo.Clear();
Disconnect();
VisualManager.SystemMessage("Error - Connection Lost");
VisualManager.SystemMessage("Trying to reconnect");
for (int reconnCounter = 0; reconnCounter < 3; reconnCounter++)
{
bool reconnSuccess = NetworkManager.Handshake((string)handshakeInfo["ip"], (int)handshakeInfo["port"], (bool)handshakeInfo["anon"], (string)handshakeInfo["username"], (string)handshakeInfo["password"]);
if (reconnSuccess)
{
VisualManager.SystemMessage("Reconnect successful");
break;
}
}
}
}
}