using System;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Runtime.Serialization.Formatters.Binary;
using System.Text;
namespace Galactic_Colors_Control_Server
{
class Utilities
{
public enum dataType { message, data };
///
/// Check if socket is connect
///
/// Client socket
public static bool IsConnect(Socket soc)
{
if(soc == null)
{
return true;
}
else
{
if (Program.clients.ContainsKey(soc))
{
return Program.clients[soc].status != -1;
}
else
{
Logger.Write("IsConnect : Unknown client", Logger.logType.error);
return true;
}
}
}
///
/// Return username from socket
///
/// Cleint socket
/// Name
public static string GetName(Socket soc)
{
if (soc != null)
{
if (Program.clients.ContainsKey(soc))
{
string res = Program.clients[soc].pseudo;
if (res == "") { res = ((IPEndPoint)soc.LocalEndPoint).Address.ToString(); }
return res;
}
else
{
return "?";
}
}
else
{
return "Server";
}
}
///
/// Write line in console with correct colors
///
/// Text to write
public static void ConsoleWrite(string v)
{
Console.Write("\b");
Console.ForegroundColor = ConsoleColor.White;
Console.BackgroundColor = ConsoleColor.Black;
Console.WriteLine(v);
ConsoleResetColor();
Console.Write(">");
}
///
/// Reset Console Colors
/// For non black background console as Ubuntu
///
public static void ConsoleResetColor()
{
Console.ResetColor();
Console.BackgroundColor = ConsoleColor.Black;
}
///
/// Send data to specified socket
///
/// Target socket
/// Data to send
/// Type of data
public static void Send(Socket soc, object data, dataType dtype)
{
/*
Format:
0-3: dataType
4-x: data
*/
byte[] type = new byte[4];
type = BitConverter.GetBytes((int)dtype);
byte[] bytes = null;
switch (dtype)
{
case dataType.message:
bytes = Encoding.ASCII.GetBytes((string)data);
break;
case dataType.data:
BinaryFormatter bf = new BinaryFormatter();
using (MemoryStream ms = new MemoryStream())
{
bf.Serialize(ms, data);
bytes = ms.ToArray();
}
break;
default:
bytes = new byte[] { 1 };
break;
}
byte[] final = new byte[type.Length + bytes.Length];
type.CopyTo(final, 0);
bytes.CopyTo(final, type.Length);
soc.Send(final);
}
///
/// Send data to all clients
///
/// Data to send
/// Type of data
public static void Broadcast(object data, dataType dtype)
{
foreach (Socket soc in Program.clients.Keys)
{
Send(soc, data, dtype);
}
}
///
/// Send or display if server
///
/// Text to send
/// Target socket
/// Is server?
public static void Return(string message, Socket soc = null, bool server = false)
{
if (server)
{
ConsoleWrite(message);
}
else
{
Send(soc, message, dataType.message);
}
}
}
}