private void frmBase_Load(object sender, EventArgs e)
{
btnSign.Visible = false;
try
{
if (this.clientSocket != null)
{
// Initialise a packet object to store the data to be sent
Packet sendData = new Packet();
sendData.ChatDataIdentifier = DataIdentifier.LogOut;
sendData.ChatMessage = null;
// Get packet as byte array
byte[] byteData = sendData.GetDataStream();
// Send packet to the server
this.clientSocket.SendTo(byteData, 0, byteData.Length, SocketFlags.None, epServer);
// Close the socket
this.clientSocket.Close();
}
}
catch (ObjectDisposedException) { }
catch (ArgumentException) { }
catch (Exception ex)
{
MessageBox.Show("Closing Error: " + ex.Message, "UDP Client", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void btnEnter_Click(object sender, EventArgs e)
{
if (txtPassword.Text == "" || txtLogin.Text == "")
{
MessageBox.Show("Заполните все поля");
return;
}
string login = txtLogin.Text;
string password = txtPassword.Text;
string mes = "~|" + login + "|" + password;
Packet sendData = new Packet();
sendData.ChatMessage = mes;
sendData.ChatDataIdentifier = DataIdentifier.Message;
byte[] data = sendData.GetDataStream();
// Initialise socket
//// Get packet as byte array
// Send data to server
clientSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, epServer, new AsyncCallback(this.SendData), null);
lblStatus.Text = "Процесс авторизации";
}
void ClientLogOut()
{
Packet sendData = new Packet();
sendData.ChatMessage = "LogOut";
sendData.ChatDataIdentifier = DataIdentifier.Message;
byte[] data = sendData.GetDataStream();
clientSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, epServer, new AsyncCallback(this.SendData), null);
}
private void btnNext1_Click(object sender, EventArgs e)
{
if (txtFileName.Text == "")
{
MessageBox.Show("Выберите файл", "", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
////////////////////////////////////////////////////////////////Получение ki
frmChooseKey frmKey = new frmChooseKey();
frmKey.ShowDialog();
if (frmKey.find)
var_Ki = frmKey.Ki;
else
{
return;
}
txtFileName.Enabled = false;
btnChooseFile.Enabled = false;
btnSign.Enabled = false;
String hash = Hash_Dll.GostHashFile(txtFileName.Text);
var_Hi = new BigInteger(hash, 16);
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
lblStatus.Text = "Идет генерация ЭЦП...";
var_Si = Sign.Calculate_Si(var_Ti, var_Hi, var_Ki, var_E, var_Q);
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
var_Yi = Sign.BI_Generate_Yi(var_P, var_G, var_Ki);
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
//MessageBox.Show("Yi= " + var_Yi.ToString());
Packet sendData = new Packet();
sendData.ChatMessage = "S|" + var_Si.ToString();
sendData.ChatDataIdentifier = DataIdentifier.Message;
byte[] data = sendData.GetDataStream();
// Send data to server
clientSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, epServer, new AsyncCallback(this.SendData), null);
}
private void ReceiveData(IAsyncResult ar)
{
try
{
// Receive all data
this.clientSocket.EndReceiveFrom(ar, ref epServer);
// Initialise a packet object to store the received data
Packet receivedData = new Packet(this.dataStream);
// Update display through a delegate
if (receivedData.ChatMessage != null)
{
///////// Разрешение на авторизацию после успешного подключения к серверу
if (receivedData.ChatMessage == "#")
{
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new SetInvisiblePanel(HideConnect), null);
}
else
if (receivedData.ChatMessage[0] == '!')
{
string[] temp = receivedData.ChatMessage.Split('|');
if (temp[1] == "True")
{
if (grpAutorize.InvokeRequired)
{
grpAutorize.Invoke(new SetInvisibleAutorize(HideAutorize), null);
grpAutorize.Invoke(new Tab(ChooseTabPage), 1);
}
}
else
if (temp[1] == "False")
MessageBox.Show("Неверные логин или пароль");
else
MessageBox.Show("Сервер занят! Повторите попытку позднее.");
}
else
if (receivedData.ChatMessage == "AllClOK")
{
if (grpAutorize.InvokeRequired)
{
grpAutorize.Invoke(new SetlblStatus(SetlblStatusText), "Все клиенты подключены");
grpAutorize.Invoke(new SetEnabledChoose(ServerStartGeneration), null);
grpAutorize.Invoke(new Progress(RaiseProgress), null);
}
}
else
if (receivedData.ChatMessage[0] == 'P')
{
/////СОХРАНЕНИЕ P
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
string[] temp = receivedData.ChatMessage.Split('|');
var_P = new BigInteger(temp[1], 10);
//MessageBox.Show(var_P.ToString());
}
else
if (receivedData.ChatMessage[0] == 'Q')
{
/////СОХРАНЕНИЕ Q
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
string[] temp = receivedData.ChatMessage.Split('|');
var_Q = new BigInteger(temp[1], 10);
// MessageBox.Show(var_Q.ToString());
}
else
if (receivedData.ChatMessage[0] == 'G')
{
/////СОХРАНЕНИЕ G
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
string[] temp = receivedData.ChatMessage.Split('|');
var_G = new BigInteger(temp[1], 10);
//MessageBox.Show(var_G.ToString());
///////Генерируем Ti вычисляем Ri и отсылаем его серверу
var_Ti = Sign.BI_Generate_Ti(var_Q);
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
var_Ri = Sign.Calculate_Ri(var_G, var_P, var_Ti);
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
Packet sendData = new Packet();
sendData.ChatMessage = "R|" + var_Ri.ToString();
sendData.ChatDataIdentifier = DataIdentifier.Message;
byte[] data = sendData.GetDataStream();
// Send data to server
clientSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, epServer, new AsyncCallback(this.SendData), null);
}
else
if (receivedData.ChatMessage[0] == 'E')
{
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
string[] temp = receivedData.ChatMessage.Split('|');
var_E = new BigInteger(temp[1], 10);
//MessageBox.Show("E= "+var_E.ToString());
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new SetEnabledChoose(EnabledChoose), null);
}
else
if (receivedData.ChatMessage[0] == 'S')
{
/////СОХРАНЕНИЕ S
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
string[] temp = receivedData.ChatMessage.Split('|');
var_S = new BigInteger(temp[1], 10);
//MessageBox.Show(var_S.ToString());
Packet sendData = new Packet();
sendData.ChatMessage = "Y|" + var_Yi.ToString();
sendData.ChatDataIdentifier = DataIdentifier.Message;
byte[] data = sendData.GetDataStream();
// Send data to server
clientSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, epServer, new AsyncCallback(this.SendData), null);
}
else
if (receivedData.ChatMessage == "Need_Hi")
{
if (grpAutorize.InvokeRequired)
grpAutorize.Invoke(new Progress(RaiseProgress), null);
Packet sendData = new Packet();
sendData.ChatMessage = "H|" + var_Hi.ToString();
sendData.ChatDataIdentifier = DataIdentifier.Message;
byte[] data = sendData.GetDataStream();
// Send data to server
clientSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, epServer, new AsyncCallback(this.SendData), null);
}
else
if (receivedData.ChatMessage == "OK")
{
if (grpAutorize.InvokeRequired)
{
grpAutorize.Invoke(new Progress(MaxProgress), null);
grpAutorize.Invoke(new SetlblStatus(SetlblStatusText), "Документ подписан");
MessageBox.Show("Операция подписания успешно завершена", "Клиент");
}
}
else
if (receivedData.ChatMessage == "VerifyFalse")
{
if (grpAutorize.InvokeRequired)
{
grpAutorize.Invoke(new Progress(MaxProgress), null);
grpAutorize.Invoke(new SetlblStatus(SetlblStatusText), "Проверка завершена");
}
MessageBox.Show("Подпись неверна!!!", "Клиент");
}
else
if (receivedData.ChatMessage == "VerifyTrue")
{
if (grpAutorize.InvokeRequired)
{
grpAutorize.Invoke(new Progress(MaxProgress), null);
grpAutorize.Invoke(new SetlblStatus(SetlblStatusText), "Проверка завершена");
}
MessageBox.Show("Подпись Верна!!!", "Клиент");
}
else
if (receivedData.ChatMessage == "LogOut")
{
if (grpAutorize.InvokeRequired)
{
grpAutorize.Invoke(new SetlblStatus(SetlblStatusText), "Подключение с сервером");
grpAutorize.Invoke(new LogOut(UnEnabledAll), null);
grpAutorize.Invoke(new Tab(ChooseTabPage), 0);
}
MessageBox.Show("Соединение с сервером разорвано!!!", "Клиент");
}
}
// Reset data stream
this.dataStream = new byte[1024];
// Continue listening for broadcasts
clientSocket.BeginReceiveFrom(this.dataStream, 0, this.dataStream.Length, SocketFlags.None, ref epServer, new AsyncCallback(this.ReceiveData), null);
}
catch (ObjectDisposedException)
{ }
catch (ArgumentException) { }
catch (Exception ex)
{
if (ex.Message == "Удаленный хост принудительно разорвал существующее подключение")
MessageBox.Show("Не удалось подключиться к серверу", "UDP Client", MessageBoxButtons.OK, MessageBoxIcon.Error);
else
MessageBox.Show("Receive Data: " + ex.Message, "UDP Client", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void btnConnect_Click(object sender, EventArgs e)
{
/////////// Поиск ip клиента из DNS таблицы хоста
IPHostEntry host = Dns.GetHostEntry(Dns.GetHostName());
string ip = "";
for (int i = 0; i < host.AddressList.Length; i++)
{
ip = host.AddressList[i].ToString();
string pattern = @"\d\d?\d?\.\d\d?\d?\.\d\d?\d?\.\d\d?\d?";
Regex regex = new Regex(pattern);
Match match = regex.Match(ip);
if (match.Success)
{
break;
}
}
try
{
// Initialise a packet object to store the data to be sent
Packet sendData = new Packet();
sendData.ChatMessage = null;
sendData.ChatDataIdentifier = DataIdentifier.LogIn;
// Initialise socket
if (clientSocket != null)
{
try
{
clientSocket.Close();
}
catch { }
}
this.clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
IPEndPoint ClientIPE;
if (ip != "")
ClientIPE = new IPEndPoint(IPAddress.Parse(ip), 8080);
else
{
MessageBox.Show("Не удалось настроить ip адрес Клиента");
return;
}
clientSocket.Bind(ClientIPE);
IPAddress serverIP;
// Initialise server IP
if (txtIP.Text.Trim() != "")
serverIP = IPAddress.Parse(txtIP.Text.Trim());
else
{
MessageBox.Show("Введите ip адрес Сервера");
return;
}
// Initialise the IPEndPoint for the server and use port 30000
IPEndPoint server = new IPEndPoint(serverIP, 30000);
// Initialise the EndPoint for the server
epServer = (EndPoint)server;
// Get packet as byte array
byte[] data = sendData.GetDataStream();
// Send data to server
clientSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, epServer, new AsyncCallback(this.SendData), null);
// Initialise data stream
this.dataStream = new byte[1024];
// Begin listening for broadcasts
clientSocket.BeginReceiveFrom(this.dataStream, 0, this.dataStream.Length, SocketFlags.None, ref epServer, new AsyncCallback(this.ReceiveData), null);
}
catch (ObjectDisposedException)
{
MessageBox.Show("Не удалось подключиться к указанному серверу");
}
catch (ArgumentException) { }
catch (Exception ex)
{
try
{
clientSocket.Close();
}
catch { }
if (ex.Message == "Удаленный хост принудительно разорвал существующее подключение")
MessageBox.Show("Не удалось подключиться к серверу", "UDP Client", MessageBoxButtons.OK, MessageBoxIcon.Error);
else
MessageBox.Show("Connection Error: " + ex.Message, "UDP Client", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
