public static List<DTOClient> getListClient()
{
OleDbConnection connect = null;
List<DTOClient> listClient = new List<DTOClient>();
try
{
connect = OpenConnect();
string stringCommand = "SELECT IDClient, Username, Password, IPAdr, NumPort, FlagSta FROM Client";
OleDbCommand command = new OleDbCommand(stringCommand, connect);
OleDbDataReader readData = command.ExecuteReader();
while (readData.Read())
{
DTOClient client = new DTOClient();
client.IDClient = readData.GetInt32(0);
if (!readData.IsDBNull(1))
client.UserName = readData.GetString(1);
if (!readData.IsDBNull(2))
client.PassWord = readData.GetString(2);
if (!readData.IsDBNull(3))
client.IPAdr = readData.GetString(3);
if (!readData.IsDBNull(4))
client.NumPort = readData.GetInt32(4);
if (!readData.IsDBNull(5))
client.FlagSta = readData.GetBoolean(5);
listClient.Add(client);
}
readData.Close();
}
catch (Exception)
{
listClient = new List<DTOClient>();
}
finally
{
try
{
if (connect == null && connect.State == System.Data.ConnectionState.Open)
connect.Close();
}
catch (NullReferenceException)
{
}
}
return listClient;
}
public static bool Update(DTOClient client)
{
return DAOClient.Update(client);
}
public static bool Insert(DTOClient client)
{
return DAOClient.Insert(client);
}
public static bool Insert(DTOClient client)
{
OleDbConnection connect = null;
bool result = true;
try
{
connect = OpenConnect();
string stringCommand = @"INSERT INTO [Client] (Username,[Password]) VALUES (@User,@Pass)";
OleDbCommand command = new OleDbCommand(stringCommand, connect);
OleDbParameter parameter;
parameter = new OleDbParameter("@Use", OleDbType.VarChar);
parameter.Value = client.UserName;
command.Parameters.Add(parameter);
parameter = new OleDbParameter("@Pass", OleDbType.VarChar);
parameter.Value = client.PassWord;
command.Parameters.Add(parameter);
command.ExecuteNonQuery();
}
catch (Exception)
{
result = false;
}
finally
{
try
{
if (connect == null && connect.State == System.Data.ConnectionState.Open)
connect.Close();
}
catch (NullReferenceException)
{
}
}
return result;
}
public static bool Update(DTOClient client)
{
OleDbConnection connect = null;
bool result = true;
try
{
connect = OpenConnect();
string stringCommand = @"UPDATE [Client] SET IPAdr = @IPAdr, NumPort = @Numport,FlagSta =@FlagSta WHERE Username = @Username";
OleDbCommand command = new OleDbCommand(stringCommand, connect);
OleDbParameter parameter;
parameter = new OleDbParameter("@IPAdr", OleDbType.VarChar);
parameter.Value = client.IPAdr;
command.Parameters.Add(parameter);
parameter = new OleDbParameter("@NumPort", OleDbType.Integer);
parameter.Value = client.NumPort;
command.Parameters.Add(parameter);
parameter = new OleDbParameter("@FlagSta", OleDbType.Boolean);
parameter.Value = client.FlagSta;
command.Parameters.Add(parameter);
parameter = new OleDbParameter("@Username", OleDbType.VarChar);
parameter.Value = client.UserName;
command.Parameters.Add(parameter);
command.ExecuteNonQuery();
}
catch (Exception)
{
result = false;
}
finally
{
if (connect == null && connect.State == System.Data.ConnectionState.Open)
connect.Close();
}
return result;
}
public ThreadClient(Socket S_sockClient, server MyServer)
{
this.S_connectClient = S_sockClient;
myServer = MyServer;
for (int i = 0; i < 10; i++)
{
listDataSemaphore[i] = new Queue<string>();
}
string command = "";
string username = "";
string password = "";
string numport = "";
byte[] bufData;
int exit = 0;
try
{
if (this.S_connectClient != null)
{
int i_DataFile = 0;
while (true)
{
//Receive name, size of file download :
bufData = new byte[1024];
i_DataFile = S_connectClient.Receive(bufData);
char[] chars_DataFile = new char[i_DataFile];
System.Text.Decoder d_DataFile = System.Text.Encoding.UTF8.GetDecoder();
int charLen = d_DataFile.GetChars(bufData, 0, i_DataFile, chars_DataFile, 0);
System.String S_DataFile = new System.String(chars_DataFile);
Arr = S_DataFile.Split(new char[] { '@' });
if (Arr[0].Contains("\0"))
{
clientUpdate();
exit = 1;
break;
}
command = Arr[0];
username = Arr[1];
password = Arr[2];
switch (command)
{
//Register@UserName@UserPass@UserPort@null.
case "Register":
{
if (BUSClient.Test(username) == true)
{
DTOClient client = new DTOClient();
client.UserName = username;
client.PassWord = password;
//========Mien Gang===================
S_updateClient.WaitOne();
bool rs = BUSClient.Insert(client);
S_updateClient.Release();
//==========Mien Gang==================
if (rs == false)
{
String S_Error = "Cannot create Account";
byte[] byData = System.Text.Encoding.ASCII.GetBytes(S_Error);
this.S_connectClient.Send(byData);
}
else
{
String S_Error = "Accept";
byte[] byData = System.Text.Encoding.ASCII.GetBytes(S_Error);
this.S_connectClient.Send(byData);
}
}
else
{
String S_Error = "Username has existed!";
byte[] byData = System.Text.Encoding.ASCII.GetBytes(S_Error);
this.S_connectClient.Send(byData);
}
exit = 1;
}
break;
//"Login @UserName @UserPass @PortListen @ IPClient@null
case "Login":
{
User = username;
numport = Arr[3];
if (BUSClient.TestLogin(username, password) == true)
{
String S_Login = "******";
byte[] byData = System.Text.Encoding.ASCII.GetBytes(S_Login);
this.S_connectClient.Send(byData);
DTOClient client = new DTOClient();
client.UserName = username;
client.PassWord = password;
client.IPAdr = Arr[4];
client.NumPort = Convert.ToInt32(numport, 10);
client.FlagSta = true;
BUSData.DeleteAll(username);
//=========Mien Gang================
S_updateClient.WaitOne();
BUSClient.Update(client);
S_updateClient.Release();
//=========Mien Gang================
LoginClient.IPAdr = Arr[4];
LoginClient.NumPort = Convert.ToInt32(numport, 10);
//Kiem tra xem co thread nao dang Wait Download ?
Thread T_testLogin = new Thread(new ThreadStart(testLogin));
T_testLogin.IsBackground = true;
T_testLogin.Start();
}
else
{
String S_Error = "Bad";
byte[] byData = System.Text.Encoding.ASCII.GetBytes(S_Error);
this.S_connectClient.Send(byData);
}
numport = "";
}
break;
//@quit@username@IPClient@null.
case "Quit":
{
try
{
//=================Mien Gang truy xuat du lieu =====================================
S_getClient.WaitOne();
List<DTOClient> listClient = BUSClient.getListClient();
S_getClient.Release();
//=================Mien Gang truy xuat du lieu ====================================
foreach (DTOClient client in listClient)
if (client.UserName.ToLower() == username.ToLower() && client.IPAdr == Arr[2])
{
client.FlagSta = false;
//=========Mien Gang================
S_updateClient.WaitOne();
BUSClient.Update(client);
S_updateClient.Release();
//=========Mien Gang================
String S_Error = "Quit";
byte[] byData = System.Text.Encoding.ASCII.GetBytes(S_Error);
this.S_connectClient.Send(byData);
S_connectClient.Close();
exit = 1;
break;
}
if (exit == 0)
{
String S_No = "No";
byte[] byS_No = System.Text.Encoding.ASCII.GetBytes(S_No);
this.S_connectClient.Send(byS_No);
S_connectClient.Close();
}
}
catch (SocketException)
{
}
}
break;
//"Share@ FileName@ FileSize@ UserName@ null"
case "Share":
{
//========================CS===============================
S_getClient.WaitOne();
List<DTOClient> listClient = BUSClient.getListClient();
S_getClient.Release();
//========================CS===============================
string[] ipp = (S_connectClient.RemoteEndPoint.ToString()).Split(new char[] { ':' });
DTOData share = new DTOData();
foreach (DTOClient client in listClient)
if (string.Compare(client.UserName, Arr[3], true) == 0)
{
if (BUSData.checkFile(username, client.IDClient) == true)
{
share.FileName = username;
share.Size = Convert.ToInt32(password);
share.IDClient = client.IDClient;
//=======Truy xuat tai nguyn du lieu Data================
S_updateClient.WaitOne();
BUSData.Insert(share);
S_updateClient.Release();
//=======Truy xuat tai nguyn du lieu Data================
}
String S_Next = "Next";
byte[] byNext = System.Text.Encoding.ASCII.GetBytes(S_Next);
this.S_connectClient.Send(byNext);
break;
}
}
break;
//Search@FileName@null.
case "Search": // tien hanh search file do Client gửi len
{
List<DTOData> listFile = BUSData.Search(username, password);
int count = listFile.Count;
string infor = "";
// Khong tim duoc thi gui cho Client chuoi Null de thong bao
if (count == 0)
{
infor = "Null@Null@Null@Null@Null@Null";
byte[] byinfor = System.Text.Encoding.ASCII.GetBytes(infor);
this.S_connectClient.Send(byinfor);
}
else
{
//Begin Search file in Clientt :
foreach (DTOData file in listFile)
{
//Get information from Client :
DTOClient client = BUSClient.Search(file.IDClient);
if (client == null)
count--;
else
{
bufData = new byte[1024];
//Information : file+size+IP+Port+Flag
if (count > 1)
infor = file.FileName + "@" + file.Size.ToString() + "@" + client.IPAdr + "@" + client.NumPort.ToString() + "@" + client.UserName + "@" + client.FlagSta.ToString() + "@Next";
else
infor = file.FileName + "@" + file.Size.ToString() + "@" + client.IPAdr + "@" + client.NumPort.ToString() + "@" + client.UserName + "@" + client.FlagSta.ToString() + "@End";
byte[] byinfor = System.Text.Encoding.ASCII.GetBytes(infor);
this.S_connectClient.Send(byinfor);
//Reveice information from Client :
byte[] bysearch = new byte[1024];
int i_DataSearch = this.S_connectClient.Receive(bysearch);
char[] chars_DataSearch = new char[i_DataSearch];
System.Text.Decoder d_DataSearch = System.Text.Encoding.UTF8.GetDecoder();
int charLenSearch = d_DataSearch.GetChars(bysearch, 0, i_DataSearch, chars_DataSearch, 0);
System.String S_DataSearch = new System.String(chars_DataSearch);
//nhan duoc chuoi "Next"thi tiep tuc send thong tin file tim thay :
if (S_DataSearch == "Next")
{
infor = "";
count--;
}
//nhan chuoi "End" tuc la da gui het tat ca file da tim thay va thoat khoi vong lap :
if (S_DataSearch == "End")
break;
}
}
}
}
break;
//Start : Download @nameFile @size @Username @Me @null.
//Ending : Download @Finish @fileName @username @null.
case "Download":
{
//=================Mien Gang truy xuat du lieu ====================================
S_getClient.WaitOne();
List<DTOClient> listClient = BUSClient.getListClient();
List<DTOData> listData = BUSData.getListData();
S_getClient.Release();
//=================Mien Gang truy xuat du lieu ====================================
bool i_show = false;
if (username == "Finish")
{
// Khi qua trinh download ket thuc :
foreach (DTOClient client in listClient)
if (client.UserName == Arr[3])
{
foreach (DTOData data in listData)
if (data.FileName == Arr[2] && data.IDClient == client.IDClient)
{
data.FlagSta = false;
//=======Mien Gang la truy xuat du lieu ===============
S_updateClient.WaitOne();
BUSData.Update(data);
S_updateClient.Release();
//=======Mien Gang la truy xuat du lieu ===============
String temp = Arr[2] + "-" + Arr[3];
for (int i = 0; i < listNameSemaphore.Count; i++)
{
if (temp == listNameSemaphore[i])
{
try
{
listCheckFile[i] = false;
listSemaphore[i].Release();
}
catch (AbandonedMutexException se)
{
MessageBox.Show(se.Message);
}
break;
}
}
}
}
}
//Download @nameFile @size @Username @Me @null.
else
{
//Bat dau kiem tra file co trang thai nhu the nao ?
foreach (DTOClient client in listClient)
if (client.UserName == Arr[3])
{
foreach (DTOData data in listData)
{
if (data.IDClient == client.IDClient)
{
// TIM KIEM TEN FILE :
if (data.FileName == Arr[1])
{
//kiem tra xem da tao mutes voi ten file nay chua ?
nameSemaphore = Arr[1] + "-" + Arr[3];
if (!check(nameSemaphore))
{
//neu chua thi tao Mutex voi ten file va UserName:
Semaphore S_mutex = new Semaphore(1, 1);
listSemaphore.Add(S_mutex);
listNameSemaphore.Add(nameSemaphore);
listCheckFile.Add(false);
}
//tim kiem ten Mutex ung voi ten file :
for (int i = 0; i < listNameSemaphore.Count; i++)
{
if (nameSemaphore == listNameSemaphore[i])
{
//Neu ko co file nao downlaod thi bat dau download :
if (listCheckFile[i] == false)
{
listSemaphore[i].WaitOne();
//send tin hieu download cho client :
String S_Start = "Start";
byte[] byStart = System.Text.Encoding.ASCII.GetBytes(S_Start);
this.S_connectClient.Send(byStart);
listCheckFile[i] = true;
data.FlagSta = true;
//=======Mien Gang la truy xuat du lieu ===============
S_updateClient.WaitOne();
BUSData.Update(data);
S_updateClient.Release();
//=======Mien Gang la truy xuat du lieu ===============
break;
}
//Neu da co Clien dang download thi tao thread vao hang doi :
else
{
//tiem kiem ten mutex de vao hang doi mutex :
//==============Mien Gang la bien i_Semaphore================================
S_iSemaphore.WaitOne();
DownData = data;
for (i_Semaphore = 0; i_Semaphore < listNameSemaphore.Count; i_Semaphore++)
{
//Tim thay ten Mutex ung voi ten file-User :
if (nameSemaphore == listNameSemaphore[i_Semaphore])
{
// endWaiting @IPCLient @PorClient @NameFile @online @ClientShare @null - IPMe @PortMe.
foreach (DTOClient clientMe in listClient)
if (clientMe.UserName == Arr[4])
{
//Luu thong tin cua thread vao hang doi ung voi thread do :
String temp = "endWaiting@" + client.IPAdr + "@" + client.NumPort + "@" + data.FileName + "@true@" + Arr[3] +"@null-" + clientMe.IPAdr + "@" + clientMe.NumPort;
listDataSemaphore[i_Semaphore].Enqueue(temp);
break;
}
//tao thread vao hang doi cua Mutex :
Thread T_waitSemaphore = new Thread(new ThreadStart(waitDownload));
T_waitSemaphore.Start();
T_waitSemaphore.Join(100);
}
}
S_iSemaphore.Release();
//==============Mien Gang la bien i_Mutex================================
//send tin hieu waiting cho client :
String S_Wait = "Wait";
byte[] byWait = System.Text.Encoding.ASCII.GetBytes(S_Wait);
this.S_connectClient.Send(byWait);
break;
}
}
}
}
}
}
i_show = true;
break;
}
}
if (i_show == true)
{
addDownload("Loading", "true");
}
}
break;
//Download ofline :
//Offline @nameFile @size @Username @IPofMe @PortofMe @null.
case "Offline":
{
for (int i = 0; i < numThread; i++)
{
if (T_downloadWait[i] == null)
{
Thread T_waiting = new Thread(new ThreadStart(beginWait));
T_waiting.Name = Arr[3] + "@" + i.ToString();
T_downloadWait[i] = T_waiting;
myServer.DataWait[i][0] = Arr[1]; // name file
myServer.DataWait[i][1] = Arr[3]; // name Client.
myServer.DataWait[i][2] = Arr[4]; //IP Me
myServer.DataWait[i][3] = Arr[5]; // Port Me
addDownload("Waiting", "true");
break;
}
}
}
break;
case "endOffline":
{
S_offlineDown.Release();
}
break;
}
if (exit == 1)
break;
}
}
}
catch (SocketException)
{
clientUpdate();
}
}
