public MainWindow()
{
ThreadPool.SetMaxThreads(20, 40);
InitializeComponent();
database_connection = DatabaseOrder.DatabaseConnection(database_connection);
if (database_connection != null)
{
users_counter = DatabaseOrder.CheckUsers(database_connection);
lbl_AllUsers.Content = users_counter.ToString();
}
else
{
this.Close();
}
}
private void ReceiveCallback(IAsyncResult AR)
{
Socket current = (Socket)AR.AsyncState;
int received;
bool bool_return = false;
int int_return = 0;
string _login, _password, _ip;
try
{
received = current.EndReceive(AR);
}
catch (SocketException)
{
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Client: " + current.RemoteEndPoint + " forcefully disconnected"); });
MW.updateCounterOfActiveUsers(false);
current.Close();
client_sockets.Remove(current);
return;
}
byte[] recBuf = new byte[received];
Array.Copy(BUFFER, recBuf, received);
string text = Encoding.ASCII.GetString(recBuf);
if (text.ToUpper() == "EXIT")
{
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Client: " + current.RemoteEndPoint + " disconnected"); });
MW.updateCounterOfActiveUsers(false);
current.Shutdown(SocketShutdown.Both);
current.Close();
client_sockets.Remove(current);
return;
}
else
{
string[] roger = null;
try
{
roger = text.Split('|');
}
catch
{
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Client: " + current.RemoteEndPoint + " used unknown commend"); });
}
if (roger[0].ToUpper() == "REG" && roger.Length == 3)
{
_login = roger[1];
_password = roger[2];
_ip = current.RemoteEndPoint.ToString();
Task t = new Task(() => { MW.Dispatcher.Invoke(() => { int_return = DatabaseOrder.AddUser(database_connection, _login, _password); }); });
MW.tasklist.Add(SingletonSecured.Instance.AddTask(t));
t.Start();
t.Wait();
if (int_return == 0)
{
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Registration complied for client: " + _ip + ", username: "******"REG|TRUE");
current.Send(data);
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallback, current);
}
else if (int_return == 1)
{
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Duplicated login: "******", client: " + _ip); });
byte[] data = Encoding.ASCII.GetBytes("REG|FALSE");
current.Send(data);
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallback, current);
}
else
{
byte[] data = Encoding.ASCII.GetBytes("REG|FALSE");
current.Send(data);
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallback, current);
}
}
else if (roger[0].ToUpper() == "LOG" && roger.Length == 3)
{
_login = roger[1];
_password = roger[2];
_ip = current.RemoteEndPoint.ToString();
Task t = new Task(() => { MW.Dispatcher.Invoke(() => { bool_return = DatabaseOrder.LogIn(database_connection, _login, _password); }); });
MW.tasklist.Add(SingletonSecured.Instance.AddTask(t));
t.Start();
t.Wait();
if (bool_return)
{
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Pomyślnie zalogowano się na użytkownika: " + _login); });
byte[] data = Encoding.ASCII.GetBytes("LOG|TRUE");
current.Send(data);
Monitor.Enter(permits_locker);
permits.Add(_login + "|" + current.RemoteEndPoint.ToString());
Monitor.Exit(permits_locker);
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallbackLoged, current);
}
else
{
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Błędne dane uwierzytelniające z adresu: " + _ip); });
byte[] data = Encoding.ASCII.GetBytes("LOG|FALSE");
current.Send(data);
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallback, current);
}
}
else
{
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallback, current);
}
}
}
private void ReceiveCallbackLoged(IAsyncResult AR)
{
Socket current = (Socket)AR.AsyncState;
int received;
string clientname = "nazwa_uzytkownika";
string[] connect_data = null;
bool bool_return = false;
if (current != null && current.Connected)
{
current.RemoteEndPoint.ToString();
Monitor.Enter(permits_locker);
foreach (string x in permits)
{
connect_data = x.Split('|');
if (connect_data[1] == current.RemoteEndPoint.ToString())
{
clientname = connect_data[0];
break;
}
}
Monitor.Exit(permits_locker);
try
{
received = current.EndReceive(AR);
}
catch (SocketException)
{
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Client: " + current.RemoteEndPoint + " forcefully disconnected"); });
MW.updateCounterOfActiveUsers(false);
client_sockets.Remove(current);
foreach (string x in permits)
{
if (x == clientname + "|" + current.LocalEndPoint.ToString())
{
permits.Remove(x);
break;
}
}
current.Close();
return;
}
byte[] recBuf = new byte[received];
Array.Copy(BUFFER, recBuf, received);
string text = Encoding.ASCII.GetString(recBuf);
string[] roger = null;
try
{
roger = text.Split('|');
}
catch
{
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Client: " + current.RemoteEndPoint + " used unknown commend"); });
}
if (roger[0].ToUpper() == "EXIT")
{
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Client: " + current.RemoteEndPoint + " disconnected"); });
MW.updateCounterOfActiveUsers(false);
current.Shutdown(SocketShutdown.Both);
current.Close();
client_sockets.Remove(current);
return;
}
else if (roger.Length == 2 && roger[0].ToUpper() == "CONTENT" && roger[1].ToUpper() == "ALLBOOKS")
{
List <string> library = new List <string>();
Task t = new Task(() => { MW.Dispatcher.Invoke(() => { library = DatabaseOrder.DownloadContent(database_connection); }); });
MW.tasklist.Add(SingletonSecured.Instance.AddTask(t));
t.Start();
t.Wait();
foreach (string _book in library)
{
byte[] data = Encoding.UTF8.GetBytes(_book);
current.Send(data);
Thread.Sleep(100);
}
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Client: " + current.RemoteEndPoint + " download library content."); });
byte[] data_end = Encoding.ASCII.GetBytes("CONTENT|END");
current.Send(data_end);
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallbackLoged, current);
}
else if (roger.Length == 2 && roger[0].ToUpper() == "CONTENT" && roger[1].ToUpper() == "MYBOOKS")
{
List <string> my_library = new List <string>();
Task t = new Task(() => { MW.Dispatcher.Invoke(() => { my_library = DatabaseOrder.DownloadMyContent(database_connection, clientname); }); });
MW.tasklist.Add(SingletonSecured.Instance.AddTask(t));
t.Start();
t.Wait();
foreach (string _book in my_library)
{
byte[] data = Encoding.UTF8.GetBytes(_book);
current.Send(data);
Thread.Sleep(100);
}
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Client: " + current.RemoteEndPoint + " download library content."); });
byte[] data_end = Encoding.ASCII.GetBytes("CONTENT|END");
current.Send(data_end);
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallbackLoged, current);
}
else if (roger[0].ToUpper() == "ORDER" && roger.Length == 2)
{
int x = Int32.Parse(roger[1].ToString());
Task t = new Task(() => { MW.Dispatcher.Invoke(() => { bool_return = DatabaseOrder.OrderBook(database_connection, x, clientname); }); });
MW.tasklist.Add(SingletonSecured.Instance.AddTask(t));
t.Start();
t.Wait();
if (bool_return)
{
byte[] data = Encoding.ASCII.GetBytes("ORDER|TRUE");
current.Send(data);
}
else
{
byte[] data = Encoding.ASCII.GetBytes("ORDER|FALSE");
current.Send(data);
}
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallbackLoged, current);
}
else if (roger[0].ToUpper() == "RETURN" && roger.Length == 2)
{
int x = Int32.Parse(roger[1].ToString());
Task t = new Task(() => { MW.Dispatcher.Invoke(() => { bool_return = DatabaseOrder.ReturnBook(database_connection, x, clientname); }); });
MW.tasklist.Add(SingletonSecured.Instance.AddTask(t));
t.Start();
t.Wait();
if (bool_return)
{
byte[] data = Encoding.ASCII.GetBytes("RETURN|TRUE");
current.Send(data);
}
else
{
byte[] data = Encoding.ASCII.GetBytes("RETURN|FALSE");
current.Send(data);
}
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallbackLoged, current);
}
else if (roger[0].ToUpper() == "RESERVE" && roger.Length == 2)
{
int x = Int32.Parse(roger[1].ToString());
Task t = new Task(() => { MW.Dispatcher.Invoke(() => { bool_return = DatabaseOrder.ReserveBook(database_connection, x, clientname); }); });
MW.tasklist.Add(SingletonSecured.Instance.AddTask(t));
t.Start();
t.Wait();
if (bool_return)
{
byte[] data = Encoding.ASCII.GetBytes("RESERVE|TRUE");
current.Send(data);
}
else
{
byte[] data = Encoding.ASCII.GetBytes("RESERVE|FALSE");
current.Send(data);
}
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallbackLoged, current);
}
current.BeginReceive(BUFFER, 0, config.GetBuffer(), SocketFlags.None, ReceiveCallbackLoged, current);
}
else
{
MW.Dispatcher.Invoke(() => { MW.lbx_OperationsList.Items.Add("Client: " + current.RemoteEndPoint + " disconnected"); });
MW.updateCounterOfActiveUsers(false);
current.Shutdown(SocketShutdown.Both);
current.Close();
client_sockets.Remove(current);
return;
}
}
