static void Main(string[] args)
{
if (args.Length == 0)
{
location.locationUI ui = new location.locationUI();
Application.Run(ui);
}
else
{
Location.LocationClass client = new LocationClass();
client.RunClient(args);
}
//Checks if there are any arguments, if there are 0 it runs the UI, otherwise it runs the client with the arguments as the input.
}
private static string WhoIs(List <string> locationMessage, StreamWriter sw, StreamReader sr, string clientOutput)
{
location.locationUI ui = new location.locationUI();
if (locationMessage.Count >= 1)
{
if (locationMessage[1] == "")
{
sw.WriteLine(locationMessage[0]);
sw.Flush();
System.Threading.Thread.Sleep(10);
string response = sr.ReadLine();
if (response == "ERROR: no entries found")
{
Console.WriteLine("ERROR: no entries found");
clientOutput += "ERROR: no entries found\r\n";
}
else
{
response = response.TrimEnd(' ');
Console.WriteLine(locationMessage[0] + " is " + response);
clientOutput += locationMessage[0] + " is " + response + "\r\n";
}
//This is the whois for when the client asks the server for the location of a user.
}
else
{
sw.WriteLine(locationMessage[0] + " " + locationMessage[1]);
sw.Flush();
System.Threading.Thread.Sleep(10);
string response = sr.ReadLine();
if (response == "OK")
{
locationMessage[1] = locationMessage[1].TrimEnd(' ');
Console.WriteLine(locationMessage[0] + " location changed to be " + locationMessage[1]);
clientOutput += locationMessage[0] + " location changed to be " + locationMessage[1] + "\r\n";
}
//This is the whois for updating a users location.
}
}
else
{
Console.WriteLine("No arguments");
clientOutput += "No arguments \r\n";
}
//This is to catch when there are no arguments provided
ui.clientOutput.Text += "\r\n";
return(clientOutput);
//This returns the clientOutput so the ui can print the log.
}
private static string HTTPZeropNine(List <string> locationMessage, StreamWriter sw, StreamReader sr, int port, string clientOutput)
{
location.locationUI ui = new location.locationUI();
List <string> serverResponce = new List <string>();
locationMessage[1] = locationMessage[1].TrimEnd(' ');
if (locationMessage.Count >= 1)
{
if (locationMessage[1] == "")
{
sw.WriteLine("GET /" + locationMessage[0]);
sw.Flush();
//This sends the HTTP 0.9 request for a users location.
List <string> responceAlpha = new List <string>();
System.Threading.Thread.Sleep(10);
responceAlpha = getResponce(responceAlpha, sr);
if (port == 80)
{
while (true)
{
try
{
string temp;
System.Threading.Thread.Sleep(10);
temp = sr.ReadLine();
if (temp == "<!DOCTYPE html>")
{
Console.WriteLine(locationMessage[0] + " is " + temp);
clientOutput += locationMessage[0] + " is " + temp + "\r\n";
while (true)
{
string tempBeta = sr.ReadLine();
if (tempBeta != null)
{
Console.WriteLine(tempBeta);
clientOutput += tempBeta + "\r\n";
}
else
{
break;
}
//This prints the responce from a webserver.
}
}
}
catch
{
break;
}
}
}
else
{
if (responceAlpha[0] == "HTTP/0.9 200 OK")
{
locationMessage[1] = locationMessage[1].TrimEnd(' ');
Console.WriteLine(locationMessage[0] + " is " + responceAlpha[3]);
clientOutput += locationMessage[0] + " is " + responceAlpha[3] + "\r\n";
}
if (responceAlpha[0] == "HTTP/0.9 404 Not Found")
{
Console.WriteLine(responceAlpha[0]);
Console.WriteLine(responceAlpha[1]);
clientOutput += responceAlpha[0] + "\r\n";
clientOutput += responceAlpha[1] + "\r\n";
}
//This deals with the servers responce for a users location.
}
}
if (locationMessage[1] != "")
{
sw.WriteLine("PUT /" + locationMessage[0]);
sw.WriteLine();
sw.WriteLine(locationMessage[1]);
sw.Flush();
//This sends the HTTP 0.9 request for the server to update a users location.
System.Threading.Thread.Sleep(10);
serverResponce = getResponce(serverResponce, sr);
if (serverResponce[0] == "HTTP/0.9 200 OK")
{
locationMessage[1] = locationMessage[1].TrimEnd(' ');
Console.WriteLine(locationMessage[0] + " location changed to be " + locationMessage[1]);
clientOutput += locationMessage[0] + " location changed to be " + locationMessage[1] + "\r\n";
}
else
{
Console.WriteLine("Failed to update");
clientOutput += "Failed to update";
}
//This is the server dealing with the servers responce to the request.
}
}
else
{
Console.WriteLine("No arguments");
clientOutput += "No arguments";
}
clientOutput += "\r\n";
return(clientOutput);
//This returns the clientOutput to the UI so it can print it to the text box.
}
private static string HTTPOne(List <string> locationMessage, StreamWriter sw, StreamReader sr, int port, string clientOutput)
{
location.locationUI ui = new location.locationUI();
List <string> serverResponce = new List <string>();
locationMessage[1] = locationMessage[1].TrimEnd(' ');
if (locationMessage.Count >= 1)
{
if (locationMessage[1] == "")
{
sw.WriteLine("GET /?" + locationMessage[0] + " HTTP/1.0" + "\r\n");
sw.Flush();
//This sends the HTTP 1.0 request to the server for a users location.
List <string> responceAlpha = new List <string>();
if (port == 80)
{
while (true)
{
try
{
string temp;
System.Threading.Thread.Sleep(10);
temp = sr.ReadLine();
if (temp == "<!DOCTYPE html>")
{
Console.WriteLine(locationMessage[0] + " is " + temp);
clientOutput += locationMessage[0] + " is " + temp + "\r\n";
while (true)
{
string tempBeta = sr.ReadLine();
if (tempBeta != null)
{
Console.WriteLine(tempBeta);
clientOutput += tempBeta + "\r\n";
}
else
{
break;
}
//This is the read in for web servers.
}
}
}
catch
{
break;
}
}
}
else
{
System.Threading.Thread.Sleep(10);
responceAlpha = getResponce(responceAlpha, sr);
if (responceAlpha[0] == "HTTP/1.0 200 OK")
{
locationMessage[1] = locationMessage[1].TrimEnd(' ');
Console.WriteLine(locationMessage[0] + " is " + responceAlpha[3]);
clientOutput += locationMessage[0] + " is " + responceAlpha[3] + "\r\n";
}
if (responceAlpha[0] == "HTTP/1.0 404 Not Found")
{
Console.WriteLine(responceAlpha[0]);
Console.WriteLine(responceAlpha[1]);
clientOutput += responceAlpha[0];
clientOutput += responceAlpha[1];
}
//This is dealing with the responce from the server for the location of a user.
}
}
if (locationMessage[1] != "")
{
int asd = locationMessage[1].Length;
sw.WriteLine("POST /" + locationMessage[0] + " HTTP/1.0");
sw.WriteLine("Content-Length: " + asd + "\r\n");
sw.Write(locationMessage[1]);
sw.Flush();
System.Threading.Thread.Sleep(10);
serverResponce = getResponce(serverResponce, sr);
if (serverResponce[0] == "HTTP/1.0 200 OK")
{
locationMessage[1] = locationMessage[1].TrimEnd(' ');
Console.WriteLine(locationMessage[0] + " location changed to be " + locationMessage[1]);
clientOutput += locationMessage[0] + " location changed to be " + locationMessage[1] + "\r\n";
}
else
{
Console.WriteLine("Failed to update");
clientOutput += "Failed to update";
}
//This is the client updating a users location to the server.
}
}
else
{
Console.WriteLine("No arguments");
clientOutput += "No arguments";
}
clientOutput += "\r\n";
return(clientOutput);
//This prints the clientOutput to the UI.
}
public string RunClient(string[] args)
{
string clientOutput = null;
location.locationUI ui = new location.locationUI();
//Creates a string "clientOutput" to return to the ui for the output text box.
//Creates a instance of the UI.
try
{
TcpClient client = new TcpClient();
string IP = "whois.net.dcs.hull.ac.uk";
string protocol = "whois";
int port = 43;
//Creates the TCP client and initializes the IP, port and protocol defaults.
string locationMessageTemp = null;
//Creates a string used to hold the args temporally so it can be organized for sending to the server.
List <string> locationMessage = new List <string>();
for (int i = 0; i < args.Length; i++)
{
switch (args[i])
{
case "-h":
if (args[i + 1] != null && args[i + 1] != "")
{
IP = args[i + 1];
}
args[i] = null;
args[i + 1] = null;
break;
// when, or if, it finds -h it stores the IP and then replaces -h and the IP in the array with null.
case "-p":
if (args[i + 1] != null && args[i + 1] != "")
{
port = int.Parse(args[i + 1]);
}
args[i] = null;
args[i + 1] = null;
break;
//when, or if, it finds -p it stores the port and then replaces -p and the port in the array with null.
case "-h0":
protocol = args[i];
args[i] = null;
break;
//when, or if, it finds -h0 it stores the protocol and replaces it in the array with null.
case "-h1":
protocol = args[i];
args[i] = null;
break;
//when, or if, it finds -h1 it stores the protocol and replaces it in the array with null.
case "-h9":
protocol = args[i];
args[i] = null;
break;
//when, or if, it finds -h9 it stores the protocol and replaces it in the array with null.
}
//if it didnt find any of these it will use the defaults specified above.
if (args[i] != null && args[i] != "")
{
locationMessageTemp += args[i] + " ";
//here it stores all of the things in the array that are not the protocol, port or IP
}
}
string[] locationMessageArray = locationMessageTemp.Split(new char[] { ' ' }, 2);
locationMessage.Add(locationMessageArray[0]);
locationMessage.Add(locationMessageArray[1]);
//Stores the Temporary variable into a list, with a length of 2, this allows the location to be multiple words without speachmarks.
client.Connect(IP, port);
client.ReceiveTimeout = 1000;
client.SendTimeout = 1000;
StreamWriter sw = new StreamWriter(client.GetStream());
StreamReader sr = new StreamReader(client.GetStream());
//sets up the connection to the server and the timeout.
switch (protocol)
{
case "whois":
clientOutput = WhoIs(locationMessage, sw, sr, clientOutput);
break;
case "-h0":
clientOutput = HTTPOne(locationMessage, sw, sr, port, clientOutput);
break;
case "-h1":
clientOutput = HTTPOnepOne(locationMessage, sw, sr, IP, port, clientOutput);
break;
case "-h9":
clientOutput = HTTPZeropNine(locationMessage, sw, sr, port, clientOutput);
break;
}
//runs the appropriate protocol.
}
catch (Exception e)
{
Console.WriteLine(e);
clientOutput += e + "\r\n";
}
return(clientOutput);
//returns the writelines to the UI so it can print it to the text box.
}
private static string HTTPOnepOne(List <string> locationMessage, StreamWriter sw, StreamReader sr, string hostName, int port, string clientOutput)
{
location.locationUI ui = new location.locationUI();
List <string> serverResponce = new List <string>();
locationMessage[1] = locationMessage[1].TrimEnd(' ');
if (locationMessage.Count >= 1)
{
if (locationMessage[1] == "")
{
sw.WriteLine("GET /?name=" + locationMessage[0] + " HTTP/1.1");
sw.WriteLine("Host: " + hostName + "\r\n");
sw.Flush();
//This sends the HTTP 1.1 request to the server
if (port == 80)
{
while (true)
{
try
{
string temp;
temp = sr.ReadLine();
if (temp == "<!DOCTYPE html>")
{
Console.WriteLine(locationMessage[0] + " is " + temp);
clientOutput += locationMessage[0] + " is " + temp + "\r\n";
while (true)
{
string tempBeta = sr.ReadLine();
if (tempBeta != null)
{
Console.WriteLine(tempBeta);
clientOutput += tempBeta + "\r\n";
}
else
{
break;
}
//This is the read in for web servers.
}
}
}
catch
{
break;
}
}
}
else
{
List <string> resonceAlpha = new List <string>();
System.Threading.Thread.Sleep(10);
resonceAlpha = getResponce(resonceAlpha, sr);
resonceAlpha[0] = resonceAlpha[0].TrimEnd(' ');
if (resonceAlpha[0] == "HTTP/1.1 200 OK")
{
locationMessage[1] = locationMessage[1].TrimEnd(' ');
Console.WriteLine(locationMessage[0] + " is " + resonceAlpha[3]);
clientOutput += locationMessage[0] + " is " + resonceAlpha[3] + "\r\n";
}
if (resonceAlpha[0] == "HTTP/1.1 404 Not Found")
{
Console.WriteLine(resonceAlpha[0]);
Console.WriteLine(resonceAlpha[1]);
clientOutput += resonceAlpha[0] + "\r\n";
clientOutput += resonceAlpha[1] + "\r\n";
}
//This is the HTTP 1.1 for when the client asks the server for the location of a user.
}
}
else if (locationMessage[1] != "")
{
string message = "name=" + locationMessage[0] + "&location=" + locationMessage[1];
sw.WriteLine("POST / HTTP/1.1");
sw.WriteLine("Host: " + hostName);
sw.WriteLine("Content-Length: " + message.Length + "\r\n");
sw.Write(message);
sw.Flush();
//This sends the appropriate HTTP 1.1 request to the server.
System.Threading.Thread.Sleep(10);
serverResponce = getResponce(serverResponce, sr);
if (serverResponce[0] == "HTTP/1.1 200 OK")
{
locationMessage[1] = locationMessage[1].TrimEnd(' ');
Console.WriteLine(locationMessage[0] + " location changed to be " + locationMessage[1]);
clientOutput += locationMessage[0] + " location changed to be " + locationMessage[1] + "\r\n";
}
else
{
Console.WriteLine("Failed to update");
clientOutput += "Failed to update\r\n";
}
//This is the HTTP 1.1 for when the client updates a user's location.
}
}
else
{
Console.WriteLine("No arguments");
clientOutput += "No arguments\r\n";
}
//this is to catch when there are no arguments.
ui.clientOutput.Text += "\r\n";
return(clientOutput);
//This returns the clientOutput so the ui can print the log.
}