static void Main(string[] args)
{
Console.WriteLine("___________________ CLIENT ________________");
Socket sck = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint ep;
Console.Write("Please Choose mode <1> Receive Mode, <2> Send Mode : ");
int t = int.Parse(Console.ReadLine());
if (t == 1) //receive mode
{
Console.WriteLine("______________< RECEIVE MODE >_______________");
//____________ Dong vai tro server nhan du lieu ___________________
ep = new IPEndPoint(IPAddress.Any, 9999);
sck.Bind(ep);
sck.Listen(5);
Console.WriteLine("San sang ket noi..");
Socket sckClient = sck.Accept();
Console.WriteLine("Da ket noi! San sang nhan file");
//________________ receive _____________________
int size;
while (true)
{
byte[] data = new byte[1024];
size = sckClient.Receive(data);
string[] s = Encoding.ASCII.GetString(data, 0, size).Split(new char[] { ',' }); // nhan ten file, duong dan, size.
Console.WriteLine("file Name: {0} ", s[0]);
Console.WriteLine("Path to store: {0} ", s[1]);
long length = long.Parse(s[2]);
byte[] buffer = new byte[1024];
byte[] fsize = new byte[length]; //khai bao mang byte de chua du lieu
long n = length / buffer.Length; // tính số frame sẽ được gửi qua
for (int i = 0; i < n; i++)
{
size = sckClient.Receive(fsize, fsize.Length, SocketFlags.None);
Console.WriteLine("Received frame {0}/{1}", i, n);
}
FileStream fs = new FileStream(s[1] + "/" + s[0], FileMode.Create); // luu file s[0] vao duong dan s[1]
fs.Write(fsize, 0, fsize.Length);
fs.Close();
Console.WriteLine("Done."); break;
}
sckClient.Close();
//______________________________________________
}
else if (t == 2)
{
Console.WriteLine("______________< SEND MODE >_______________");
//__________________ Dong vai tro client gui du lieu ____________________
Console.Write("Enter file to send : "); //nhap đường dẫn tên file
string path = Console.ReadLine();
FileInfo file = new FileInfo(path);
if (!file.Exists) //kiểm tra file có tồn tại k
{
Console.WriteLine("Not exist file {0}!", path);
}
string filename = path.Substring(path.LastIndexOf("/") + 1); // tách tên file khỏi đường dẫn
Console.Write("Path on store to server : "); // nhập đường dẫn lưu file
string save = Console.ReadLine();
Console.Write("Send to IP : ");
string ip = Console.ReadLine();
ep = new IPEndPoint(IPAddress.Parse(ip), 9999);
sck.Connect(ep);
Console.WriteLine("Connected! Sending file {0} to {1} on Server {2}", path, save, ip);
//________________ send ________________________
byte[] data = new byte[1024];
byte[] fsize = new byte[file.Length]; // tạo mảng chứa dữ liệu
FileStream fs = new FileStream(path, FileMode.Open); // đọc thông tin file đã nhập
fs.Read(fsize, 0, fsize.Length);
fs.Close();
while (true)
{
string s = filename + "," + save + "," + file.Length.ToString();
sck.Send(Encoding.ASCII.GetBytes(s));
long n = file.Length / data.Length; //tính số frame phải gửi
for (int i = 0; i < n; i++)
{
Console.WriteLine("Sending frame {0}/{1}", i, n);
sck.Send(fsize, fsize.Length, 0);
}
Console.WriteLine("Done."); break;
}
//______________________________________________
}
else
{
Console.WriteLine("Wrong request!!");
}
sck.Close();
Console.ReadLine();
}
static void Main(string[] args)
{
const string ip = "127.0.0.1";
const int port = 8082;
#region TCP
//var tcpEndPoint = new IPEndPoint(IPAddress.Parse(ip), port);
//var tcpSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//Console.WriteLine("Write down your message:");
//var message = Console.ReadLine();
//var data = Encoding.UTF8.GetBytes(message);
//tcpSocket.Connect(tcpEndPoint);
//tcpSocket.Send(data);
//var buffer = new byte[256];
//var size = 0;
//var answer = new StringBuilder();
//do
//{
// size = tcpSocket.Receive(buffer);
// answer.Append(Encoding.UTF8.GetString(buffer, 0, size));
//}
//while (tcpSocket.Available > 0);
//Console.WriteLine(answer.ToString());
//tcpSocket.Shutdown(SocketShutdown.Both);
//tcpSocket.Close();
//Console.ReadKey();
#endregion
#region UDP
var udpEndPoint = new IPEndPoint(IPAddress.Parse(ip), port);
var udpSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
udpSocket.Bind(udpEndPoint);
while (true)
{
Console.WriteLine("Write your message: ");
var message = Console.ReadLine();
EndPoint serverEndPoint = new IPEndPoint(IPAddress.Parse(ip), 8081);
udpSocket.SendTo(Encoding.UTF8.GetBytes(message), serverEndPoint);
var buffer = new byte[256];
var size = 0;
var data = new StringBuilder();
do
{
size = udpSocket.ReceiveFrom(buffer, ref serverEndPoint);
data.Append(Encoding.UTF8.GetString(buffer));
}while (udpSocket.Available > 0);
Console.WriteLine(data);
//Console.ReadLine();
}
#endregion
}
