public static void handleConnection(NetworkStream clientStream, Bank bank, TcpClient client)
{
Byte[] bytes = new Byte[256];
String data = null;
sendResponse(clientStream, "DODGY BROTHERS ATM\r\n------------------------------------------\r\nSyntax: <COMMAND> <ARGUMENTS>\r\nCreate a new account:\r\n\tCREATE <account name>\r\nSee account balance:\r\n\tBALANCE <account name>\r\nDeposit funds to account:\r\n\tDEPOSIT <account name> <amount>\r\nWithdraw funds from account:\r\n\tWITHDRAW <account name> <amount>");
data = null;
int i;
while ((i = clientStream.Read(bytes, 0, bytes.Length)) != 0)
{
data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
Console.WriteLine("Received: {0}", data);
data = data.ToUpper();
data = Regex.Replace(data, @"\t|\n|\r", "");
char[] separator = { ' ' };
String[] parsedCommand = new String[4];
parsedCommand = data.Split(separator, 3, StringSplitOptions.None);
if (data == "")
parsedCommand[0] = "";
switch (parsedCommand[0])
{
case "CREATE":
if (isCommandComplete(parsedCommand, 2))
{
try {
bank.addAccount(parsedCommand[1]);
sendResponse(clientStream, "Account created successfully");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
sendResponse(clientStream, "Account already exists");
}
break;
}
else
{
sendResponse(clientStream, "Command Missing arguments");
break;
}
case "BALANCE":
if (isCommandComplete(parsedCommand, 2))
{
try{
String balance = "Account Balance: $" + bank.getBalance(parsedCommand[1]).ToString();
sendResponse(clientStream, balance);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
sendResponse(clientStream, "Account does not exist");
}
break;
}
else
{
sendResponse(clientStream, "Command missing arguments");
break;
}
case "DEPOSIT":
if (isCommandComplete(parsedCommand, 3))
{
try {
bank.deposit(parsedCommand[1], decimal.Parse(parsedCommand[2]));
sendResponse(clientStream, "Deposit Successful");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
sendResponse(clientStream, "Account does not exist");
}
break;
}
else
{
sendResponse(clientStream, "Command missing arguments");
break;
}
case "WITHDRAW":
if (isCommandComplete(parsedCommand, 3))
{
try
{
bank.withdraw(parsedCommand[1], decimal.Parse(parsedCommand[2]));
sendResponse(clientStream, "Withdrawal successful");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
sendResponse(clientStream, "Account does not exist");
}
break;
}
else
{
sendResponse(clientStream, "Command missing arguments");
break;
}
default:
break;
}
}
client.Close();
}
static void Main(string[] args)
{
Bank dodgyBank = new Bank();
TcpListener server = null;
List<Thread> connectionThreads = new List<Thread>();
try
{
// Network Details
IPAddress ipAddress = IPAddress.Parse("0.0.0.0");
Int32 port = 9000;
// Create TCP Listener
server = new TcpListener(ipAddress, port);
server.Start();
while (true)
{
Console.WriteLine("Waiting for connection...");
TcpClient client = server.AcceptTcpClient();
NetworkStream clientStream = client.GetStream();
Thread newThread = new Thread(() => handleConnection(clientStream, dodgyBank, client));
newThread.Start();
connectionThreads.Add(newThread);
Console.WriteLine("Connection made");
}
} catch (Exception e)
{
Console.WriteLine(e.StackTrace);
}
}