private void frmBase_FormClosing(object sender, FormClosingEventArgs e)
{
try
{
if (serverSocket != null)
//if (serverSocket.Connected)
{
Packet sendData = new Packet();
sendData.ChatMessage = "LogOut";
sendData.ChatDataIdentifier = DataIdentifier.Message;
byte[] data = sendData.GetDataStream();
for (int i = 0; i < CLientsList.Count; i++)
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, CLientsList[i].ep, new AsyncCallback(this.SendData), CLientsList[i].ep);
}
}
catch { }
}
void NewSession()
{
Packet sendData = new Packet();
sendData.ChatMessage = "LogOut";
sendData.ChatDataIdentifier = DataIdentifier.Message;
byte[] data = sendData.GetDataStream();
for (int i = 0; i < CLientsList.Count; i++)
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, CLientsList[i].ep, new AsyncCallback(this.SendData), CLientsList[i].ep);
if (serverSocket != null)
{
//serverSocket.Disconnect(true);
serverSocket.Dispose();
//serverSocket.Close();
}
Hide();
frmAutorization frmA = new frmAutorization();
frmA.ShowDialog();
connection = frmA.connection;
db = new DB_CEGSA(connection);
var_G = new BigInteger(0);
var_Q = new BigInteger(0);
var_Y = new BigInteger(0);
var_E = new BigInteger(0);
var_S = new BigInteger(0);
var_R = new BigInteger(0);
var_NewE = new BigInteger(0);
var_NewR = new BigInteger(0);
var_Si = new BigInteger[1];
var_Hi = new BigInteger[1];
var_Ri = new BigInteger[1];
var_Yi = new BigInteger[1];
int var_Ri_Count = 0;
int var_Yi_Count = 0;
int var_Si_Count = 0;
int var_Hi_Count = 0;
this.AcceptButton = btnStart;
kol_clients = 0;
AllowAutorize = true;
try
{
clientList.Clear();
}
catch { }
try
{
listClients.Clear();
}
catch { }
try
{
lstClients.Items.Clear();
}
catch { }
try
{
CLientsList.Clear();
}
catch { }
lstCurrentClients.Items.Clear();
progressBar1.Value = 0;
toolStrip1.Enabled = true;
tbtnAdd.Enabled = true;
tbtnDel.Enabled = true;
tbtnEdit.Enabled = true;
tbtnChangeAdminPass.Enabled = true;
btnStart.Enabled = true;
lstClients.Enabled = true;
lstCurrentClients.Enabled = true;
lstCurrentClients.Visible = true;
btnAddClient.Visible = true;
btnAddAllClients.Visible = true;
btnDelAllClients.Visible = true;
btnDelClient.Visible = true;
label1.Visible = true;
lstCurrentClients.Enabled = true;
btnAddClient.Enabled = true;
btnAddAllClients.Enabled = true;
btnDelAllClients.Enabled = true;
btnDelClient.Enabled = true;
label1.Enabled = true;
cmbServerAddress.Enabled = true;
ReadListClients();
Show();
}
private void ReceiveData(IAsyncResult asyncResult)
{
try
{
byte[] data;
// Initialise a packet object to store the received data
Packet receivedData = new Packet(this.dataStream);
// Initialise a packet object to store the data to be sent
Packet sendData = new Packet();
// Initialise the IPEndPoint for the clients
IPEndPoint clients = new IPEndPoint(IPAddress.Any, 8080);
// Initialise the EndPoint for the clients
EndPoint epSender = (EndPoint)clients;
IPEndPoint broadcast = new IPEndPoint(IPAddress.Broadcast, 0);
EndPoint epBroadcast = (EndPoint)broadcast;
// Receive all data
serverSocket.EndReceiveFrom(asyncResult, ref epSender);
// Start populating the packet to be sent
sendData.ChatDataIdentifier = receivedData.ChatDataIdentifier;
switch (receivedData.ChatDataIdentifier)
{
case DataIdentifier.Message:
{
if (receivedData.ChatMessage[0] == '~')
{
bool find = false;
bool OutSession = true;
if (AllowAutorize)
{
string[] temp = receivedData.ChatMessage.Split('|');
var query = from U in db.User
where U.Login == temp[1] && U.Password == temp[2]
select U;
foreach (User U in query)
{
for (int i = 0; i < listClients.Count; i++)
{
if (U.Login == listClients[i].Login)
{
CLIENT NewClient = new CLIENT();
NewClient.ep = epSender;
NewClient.user = U;
bool exist = false;
for (int j = 0; j < CLientsList.Count; j++)
if (CLientsList[j].user.Login == U.Login)
{
exist = true;
break;
}
if (!exist)
{
CLientsList.Add(NewClient);
find = true;
kol_clients++;
OutSession = false;
}
}
if (lstCurrentClients.Items[i].ToString() == U.Login)
if (lstCurrentClients.InvokeRequired)
lstCurrentClients.Invoke(new SetChecked(Checked), i);
}
}
}
sendData.ChatMessage = "!";
if (find)
sendData.ChatMessage += "|True";
else
sendData.ChatMessage += "|False";
//sendData.ChatMessage = "True";
if (OutSession)
sendData.ChatMessage += "|Out";
data = sendData.GetDataStream();
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, epSender, new AsyncCallback(this.SendData), epSender);
// serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, epSender, new AsyncCallback(this.SendData), epSender);
if (kol_clients == listClients.Count)
{
if (lstClients.InvokeRequired)
{
lstClients.Invoke(new Progress(RaiseProgress), null);
lstClients.Invoke(new SetText(SetlblStatusText), "Идет генерация ключей");
}
serverSocket.EnableBroadcast = true;
sendData.ChatMessage = "AllClOK";
data = sendData.GetDataStream();
AllowAutorize = false;
var_Ri = new BigInteger[kol_clients];
var_Si = new BigInteger[kol_clients];
var_Hi = new BigInteger[kol_clients];
var_Yi = new BigInteger[kol_clients];
var_Ri_Count = 0;
var_Si_Count = 0;
var_Hi_Count = 0;
var_Yi_Count = 0;
////serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.Broadcast, epBroadcast, new AsyncCallback(this.SendData), broadcast);
for (int i = 0; i < CLientsList.Count; i++)
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, CLientsList[i].ep, new AsyncCallback(this.SendData), CLientsList[i].ep);
///P
var_P = Sign.BI_Generate_P();
if (lstClients.InvokeRequired)
lstClients.Invoke(new Progress(RaiseProgress), null);
sendData.ChatMessage = "P|" + var_P.ToString();
//if (textBox1.InvokeRequired)
// textBox1.Invoke(new SetText(PrintText), sendData.ChatMessage);
data = sendData.GetDataStream();
for (int i = 0; i < CLientsList.Count; i++)
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, CLientsList[i].ep, new AsyncCallback(this.SendData), CLientsList[i].ep);
//MessageBox.Show(sendData.ChatMessage);
/////Q
var_Q = Sign.BI_Generate_Q(var_P);
if (lstClients.InvokeRequired)
lstClients.Invoke(new Progress(RaiseProgress), null);
sendData.ChatMessage = "Q|" + var_Q.ToString();
data = sendData.GetDataStream();
for (int i = 0; i < CLientsList.Count; i++)
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, CLientsList[i].ep, new AsyncCallback(this.SendData), CLientsList[i].ep);
//MessageBox.Show(sendData.ChatMessage);
/////G
var_G = Sign.BI_Generate_G(var_P, var_Q);
if (lstClients.InvokeRequired)
lstClients.Invoke(new Progress(RaiseProgress), null);
sendData.ChatMessage = "G|" + var_Q.ToString();
data = sendData.GetDataStream();
for (int i = 0; i < CLientsList.Count; i++)
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, CLientsList[i].ep, new AsyncCallback(this.SendData), CLientsList[i].ep);
//MessageBox.Show(sendData.ChatMessage);
}
}
else
if (receivedData.ChatMessage[0] == 'R')
{
if (var_Ri_Count < kol_clients)
{
string[] temp = receivedData.ChatMessage.Split('|');
var_Ri[var_Ri_Count] = new BigInteger(temp[1], 10);
//MessageBox.Show("Ri[" + var_Ri_Count.ToString() + "]= "+ var_Ri[var_Ri_Count].ToString());
var_Ri_Count++;
if (var_Ri_Count == kol_clients)
{
var_R = Sign.Calculate_R(var_Ri, var_P);
if (lstClients.InvokeRequired)
lstClients.Invoke(new Progress(RaiseProgress), null);
//MessageBox.Show(var_R.ToString());
var_E = Sign.Calculate_E(var_R, var_Q);
if (lstClients.InvokeRequired)
lstClients.Invoke(new Progress(RaiseProgress), null);
sendData.ChatMessage = "E|" + var_E.ToString();
data = sendData.GetDataStream();
for (int i = 0; i < CLientsList.Count; i++)
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, CLientsList[i].ep, new AsyncCallback(this.SendData), CLientsList[i].ep);
if (lstClients.InvokeRequired)
lstClients.Invoke(new SetText(SetlblStatusText), "Ожидание ответа от клиентов...");
}
}
}
else
if (receivedData.ChatMessage[0] == 'S')
{
if (var_Si_Count < kol_clients)
{
if (lstClients.InvokeRequired)
lstClients.Invoke(new SetText(SetlblStatusText), "Идет генерация ЭЦП...");
string[] temp = receivedData.ChatMessage.Split('|');
var_Si[var_Si_Count] = new BigInteger(temp[1], 10);
//MessageBox.Show("Si[" + var_Si_Count.ToString() + "]= " + var_Si[var_Si_Count].ToString());
var_Si_Count++;
if (var_Si_Count == kol_clients)
{
var_S = Sign.Calculate_S(var_Si, var_Q);
if (lstClients.InvokeRequired)
lstClients.Invoke(new Progress(RaiseProgress), null);
// MessageBox.Show(var_S.ToString());
sendData.ChatMessage = "S|" + var_S.ToString();
data = sendData.GetDataStream();
for (int i = 0; i < CLientsList.Count; i++)
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, CLientsList[i].ep, new AsyncCallback(this.SendData), CLientsList[i].ep);
}
}
}
else
if (receivedData.ChatMessage[0] == 'Y')
{
if (var_Yi_Count < kol_clients)
{
string[] temp = receivedData.ChatMessage.Split('|');
var_Yi[var_Yi_Count] = new BigInteger(temp[1], 10);
//MessageBox.Show("Yi[" + var_Yi_Count.ToString() + "]= " + var_Yi[var_Yi_Count].ToString());
var_Yi_Count++;
if (var_Yi_Count == kol_clients)
{
sendData.ChatMessage = "Need_Hi";
data = sendData.GetDataStream();
for (int i = 0; i < CLientsList.Count; i++)
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, CLientsList[i].ep, new AsyncCallback(this.SendData), CLientsList[i].ep);
}
}
}
else
if (receivedData.ChatMessage[0] == 'H')
{
if (var_Hi_Count < kol_clients)
{
string[] temp = receivedData.ChatMessage.Split('|');
var_Hi[var_Hi_Count] = new BigInteger(temp[1], 10);
//MessageBox.Show("Hi[" + var_Hi_Count.ToString() + "]= " + var_Hi[var_Hi_Count].ToString());
var_Hi_Count++;
if (var_Hi_Count == kol_clients)
{
var_Y = Sign.Calculate_Y(var_Yi, var_Hi, var_P);
if (lstClients.InvokeRequired)
lstClients.Invoke(new Progress(RaiseProgress), null);
//MessageBox.Show("Y= " + var_Y.ToString());
Session session = new Session();
session.E = var_E.ToString();
session.G = var_G.ToString();
session.P = var_P.ToString();
session.S = var_S.ToString();
session.Y = var_Y.ToString();
session.Q = var_Q.ToString();
try
{
db.Session.InsertOnSubmit(session);
db.SubmitChanges();
}
catch (Exception ex)
{
MessageBox.Show("Не удалось добавить данные в базу по причине:\n" + ex.ToString());
}
sendData.ChatMessage = "OK";
if (lstClients.InvokeRequired)
{
lstClients.Invoke(new Progress(MaxProgress), null);
lstClients.Invoke(new SetText(SetlblStatusText), "Документ подписан");
}
bool VerifyResult = Sign.Verify_Sign(var_Y, var_E, var_S, var_P, var_Q, var_G);
data = sendData.GetDataStream();
for (int i = 0; i < CLientsList.Count; i++)
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, CLientsList[i].ep, new AsyncCallback(this.SendData), CLientsList[i].ep);
DateTime CurrDate = DateTime.Now;
SignFileName = "Sign_" + CurrDate.Day.ToString() + "." + CurrDate.Month.ToString() + "." + CurrDate.Year.ToString() + "_" + CurrDate.Hour.ToString() + "." + CurrDate.Minute.ToString() + "." + CurrDate.Second.ToString() + ".CEGSA";
FileStream FS = new FileStream(SignFileName, FileMode.Create);
StreamWriter sw = new StreamWriter(FS);
sw.WriteLine(var_S.ToString());
sw.WriteLine(var_E.ToString());
sw.Close();
/*
if (VerifyResult)
MessageBox.Show("Подпись верна", "Сервер");
else
MessageBox.Show("Подпись НЕ верна", "Сервер");
* */
frmFinalMsg frmFinMsg = new frmFinalMsg();
frmFinMsg.ChangePrompt("Композиционная ЭЦП успешно сформирована и сохранена\nв " + SignFileName);
frmFinMsg.ShowDialog();
if (frmFinMsg.flagNewSession)
if (lstClients.InvokeRequired)
{
lstClients.Invoke(new BeginNewSes(BeginNewSession), null);
while (true) ;
}
}
}
}
else
if (receivedData.ChatMessage[0] == 'V')
{
string[] temp = receivedData.ChatMessage.Split('|');
var_S = new BigInteger(temp[1], 10);
}
else
if (receivedData.ChatMessage[0] == 'B')
{
string[] temp = receivedData.ChatMessage.Split('|');
var_E = new BigInteger(temp[1], 10);
bool VerifyResult = false;
if (var_S != 0)
{
if (lstClients.InvokeRequired)
lstClients.Invoke(new Progress(MaxProgress), null);
var sessions = from S in db.Session
where S.S == var_S.ToString() && S.E == var_E.ToString()
select S;
foreach (Session session in sessions)
{
var_Y = new BigInteger(session.Y, 10);
var_G = new BigInteger(session.G, 10);
var_P = new BigInteger(session.P, 10);
var_Q = new BigInteger(session.Q, 10);
VerifyResult = Sign.Verify_Sign(var_Y, var_E, var_S, var_P, var_Q, var_G);
}
}
if (VerifyResult)
sendData.ChatMessage = "VerifyTrue";
else
sendData.ChatMessage = "VerifyFalse";
data = sendData.GetDataStream();
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, epSender, new AsyncCallback(this.SendData), epSender);
}
//else
//if (receivedData.ChatMessage == "LogOut")
//{
// if (!AllowAutorize)
// {
// sendData.ChatMessage = "LogOut";
// sendData.ChatDataIdentifier = DataIdentifier.Message;
// data = sendData.GetDataStream();
// for (int i = 0; i < CLientsList.Count; i++)
// serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, CLientsList[i].ep, new AsyncCallback(this.SendData), CLientsList[i].ep);
// MessageBox.Show("Сессия завершена одним из клиентов");
// if (lstClients.InvokeRequired)
// lstClients.Invoke(new Progress(NewSession), null);
// listClients.Clear();
// CLientsList.Clear();
// }
//}
}
break;
case DataIdentifier.LogIn:
// Разрешаем авторизацию пользователей
sendData.ChatMessage = "#";
data = sendData.GetDataStream();
serverSocket.BeginSendTo(data, 0, data.Length, SocketFlags.None, epSender, new AsyncCallback(this.SendData), epSender);
break;
}
// Get packet as byte array
data = sendData.GetDataStream();
// Listen for more connections again...
serverSocket.BeginReceiveFrom(this.dataStream, 0, this.dataStream.Length, SocketFlags.None, ref epSender, new AsyncCallback(this.ReceiveData), epSender);
}
catch (ObjectDisposedException) { }
catch (ArgumentException) { }
catch (Exception ex)
{
if (ex.Message != "Удаленный хост принудительно разорвал существующее подключение") ;
MessageBox.Show("ReceiveData Error: " + ex.Message, "Server", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
