static void Main(string[] args)
{
// TODO: get the listening port from the PRS for the "FT Server" service
string serviceName = "FT Server";
string prsIP = "127.0.0.1";
ushort prsPort = 30000;
PRSServiceClient.prsPort = prsPort;
PRSServiceClient.prsAddress = IPAddress.Parse(prsIP);
PRSServiceClient prs = new PRSServiceClient(serviceName);
ushort listeningPort = prs.RequestPort();
// create the TCP listening socket
Socket listeningSocket = new Socket(SocketType.Stream, ProtocolType.Tcp);
listeningSocket.Bind(new IPEndPoint(IPAddress.Any, listeningPort));
listeningSocket.Listen(42); // 42 is the number of clients that can be waiting for us to accept their connection
Console.WriteLine("Listening for clients on port " + listeningPort.ToString());
bool done = false;
while (!done)
{
// wait for a client to connect
Console.WriteLine("Ready to accept new client");
Socket clientSocket = listeningSocket.Accept();
Console.WriteLine("Accepted connection from client");
// TODO: worry about keep alives to the PRS for our FT Server port number
// create a thread for this client, and then return to listening for more clients
Console.WriteLine("Launch new thread for connected client");
ClientThread clientThread = new ClientThread(clientSocket);
clientThread.Start();
}
// close down the listening socket
Console.WriteLine("Closing listening socket");
listeningSocket.Close();
}
static void Main(string[] args)
{
ushort listeningPort = 40001;
string serviceName = "FT Server";
string prsIP = "127.0.0.1"; // TODO: get prsIP from the cmdline
ushort prsPort = 30000;
// TODO: process cmd line
// -prs <PRS IP address>:<PRS port>
// -p listening port
if (args != null)//if we have command line options
{
string[] command = args;
if ((command.Length) % 2 != 0)//if each command doesnt have a
{
throw (new Exception("Invalid Command Line Args"));
}
for (int i = 0; i < command.Length; i = i + 2)
{
switch (command[i].ToLower())
{
case "-prs": //prs command gotten
string[] ipportstring = command[i + 1].Split(':');
prsIP = ipportstring[0];
prsPort = Convert.ToUInt16(ipportstring[1]);
break;
case "-p": //port to listen on
listeningPort = Convert.ToUInt16(command[i + 1]);
break;
default:
break;
}
}
}
// get the listening port from the PRS for the "FT Server" service
// TODO: get prsPort from the cmdline
PRSServiceClient.prsAddress = IPAddress.Parse(prsIP);
PRSServiceClient.prsPort = prsPort;
PRSServiceClient prs = new PRSServiceClient(serviceName);
listeningPort = prs.RequestPort();
// create the TCP listening socket
Socket listeningSocket = new Socket(SocketType.Stream, ProtocolType.Tcp);
listeningSocket.Bind(new IPEndPoint(IPAddress.Any, listeningPort));
listeningSocket.Listen(42); // 42 is the number of clients that can be waiting for us to accept their connection
Console.WriteLine("Listening for clients on port " + listeningPort.ToString());
bool done = false;
while (!done)
{
// wait for a client to connect
Console.WriteLine("Ready to accept new client");
Socket clientSocket = listeningSocket.Accept();
Console.WriteLine("Accepted connection from client");
// TODO: worry about keep alives to the PRS for our FT Server port number
// create a thread for this client, and then return to listening for more clients
Console.WriteLine("Launch new thread for connected client");
ClientThread clientThread = new ClientThread(clientSocket);
clientThread.Start();
}
// close down the listening socket
Console.WriteLine("Closing listening socket");
listeningSocket.Close();
// close the listening port that I received from the PRS
prs.ClosePort();
}
private void Run()
{
bool done = false;
NetworkStream NetworkSocketStream = new NetworkStream(clientSocket);
StreamReader SocketReader = new StreamReader(NetworkSocketStream);
StreamWriter SocketWriter = new StreamWriter(NetworkSocketStream);
while (!done && clientSocket.Connected)
{
string cmd = SocketReader.ReadLine();
if (cmd == null)
{
done = true;
break;
}
Console.WriteLine("received cmd" + cmd);
// parse the client's request to find the cmd
switch (cmd)
{
case "get":
{
Console.WriteLine("Received GET cmd from client");
string directoryName = SocketReader.ReadLine();
Console.WriteLine("Getting files for directory " + directoryName);
// open the named directory
DirectoryInfo di = new DirectoryInfo(directoryName);
// send each file to the client
foreach (FileInfo fi in di.EnumerateFiles())
{
Console.WriteLine("Found file " + fi.Name + " in directory");
if (fi.Extension == ".txt")
{
Console.WriteLine("Found TXT file: " + fi.Name);
// get a new port that we can use to send the file to the client
string serviceName = "FT Server - File " + (nextFile++).ToString();
PRSServiceClient prs = new PRSServiceClient(serviceName);
ushort filePort = prs.RequestPort();
SocketWriter.WriteLine(fi.Name);
SocketWriter.WriteLine(fi.Length.ToString());
SocketWriter.Flush();
FileStream fileStream = fi.OpenRead();
StreamReader fileReader = new StreamReader(fileStream);
string fileContents = fileReader.ReadToEnd();
SocketWriter.Write(fileContents);
SocketWriter.Flush();
fileReader.Close();
fileStream.Close();
}
}
SocketWriter.WriteLine("done");
SocketWriter.Flush();
}
break;
case "exit":
Console.WriteLine("Received EXIT cmd from client");
done = true;
break;
}
}
// disconnect from client and close the socket
Console.WriteLine("Disconnecting from client");
clientSocket.Disconnect(false);
NetworkSocketStream.Close();
SocketWriter.Close();
SocketReader.Close();
clientSocket.Close();
Console.WriteLine("Disconnected from client");
}