//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Public Packets
static bool PublicPacketHandler(Packet p, ClientData client)
{
Packet response = null;
switch (p.PacketType)
{
case PacketType.SchülerLogin:
//DB----- Try Login
ClientHandler.Ausgabe("Auth", "Email: " + p.Data["email"] + " Passwort: " + p.Data["passwort"] + " try to login");
DatenbankArgs args = client.db_Manager.Schüler.login(p.Data["email"].ToString(), p.Data["passwort"].ToString());
if (args.Success)
{
ClientHandler.ClientLogin(client.id); //In liste schreiben
//Console.WriteLine(ClientHandler.checkLoginState(client.id));
//Daten speichern
client.email = p.Data["email"].ToString(); //email als Erkennungsmerkmal setzen
client.name = (string)args.Data.Rows[0]["S_Name"];
client.vname = (string)args.Data.Rows[0]["S_Vorname"];
client.SetAutorKürzel();
ClientHandler.Ausgabe("Auth", client.vname + "." + client.name + "." + client.email + " (Schüler) eingeloggt");
}
else
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " Login fehlgeschlagen!");
}
response = new Packet(PacketType.SchülerLogin, args.Data, args.Success, args.Error);
//------
break;
case PacketType.LehrerLogin:
//DB----- Try Login
ClientHandler.Ausgabe("Auth", "Email: " + p.Data["email"] + " Passwort: " + p.Data["passwort"] + " try to login");
args = client.db_Manager.Lehrer.login(p.Data["email"].ToString(), p.Data["passwort"].ToString());
if (args.Success)
{
ClientHandler.ClientLogin(client.id); //In liste schreiben
client.email = p.Data["email"].ToString(); //email als Erkennungsmerkmal setzen
client.name = (string)args.Data.Rows[0]["L_Name"];
client.vname = (string)args.Data.Rows[0]["L_Vorname"];
client.SetAutorKürzel();
client.hasRights = true;
ClientHandler.Ausgabe("Auth", client.vname + "." + client.name + "." + client.email + " (Lehrer) eingeloggt");
}
else
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " Login fehlgeschlagen!");
}
response = new Packet(PacketType.LehrerLogin, args.Data, args.Success, args.Error);
//------
break;
case PacketType.SchülerRegistraition: //Register Schüler
args = client.db_Manager.Schüler.add(p.Data["name"].ToString(), p.Data["vname"].ToString(), p.Data["phone"].ToString(), p.Data["email"].ToString(), p.Data["klasse"].ToString(), p.Data["passwort"].ToString());
if (args.Success)
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " wurde erfolgreich registriert");
}
else
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " Registrierung fehlgeschlagen!");
}
response = new Packet(PacketType.SchülerRegistraition, args.Data, args.Success, args.Error);
break;
case PacketType.LehrerRegistraition: //Register Lehrer
if ((string)p.Data["lehrerPasswort"] != lehrerPasswort)
{
args = new DatenbankArgs("Lehrer Passwort falsch.\n Versuchen Sie es erneut.");
}
else
{
args = client.db_Manager.Lehrer.add(p.Data["vname"].ToString(), p.Data["name"].ToString(), p.Data["anrede"].ToString(), p.Data["email"].ToString(), p.Data["passwort"].ToString(), p.Data["titel"].ToString());
}
if (args.Success)
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " wurde erfolgreich registriert");
}
else
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " Registrierung fehlgeschlagen!");
}
response = new Packet(PacketType.LehrerRegistraition, args.Data, args.Success, args.Error);
break;
case PacketType.Klassenwahl:
response = Klassenwahl(client);
break;
}
if (response != null)
{
ClientHandler.SendSinglePacket(client, response);
//ClientHandler.Ausgabe("Auth", "Anfrage wurde bearbeitet");
return(true);
}
return(false);
}
private void HandleData(string[] packetData)
{
//Console.WriteLine($"Got a packet: {packetData[0]}");
switch (packetData[0])
{
case "login":
if (!AssertPacketData(packetData, 2))
{
return;
}
this.UserName = packetData[1];
Console.WriteLine($"User {this.UserName} is connected");
if (DoctorPasswordData.DoctorPassWords.ContainsKey(this.UserName))
{
Console.WriteLine("Username is in use by doctor");
Write("login\r\nerror\r\nThe username is in use");
return;
}
if (AllClients.TotalClients.ContainsKey(UserName))
{
Client client;
AllClients.TotalClients.TryGetValue(UserName, out client);
if (client.IsOnline)
{
Write("login\r\nerror\r\nA user with the same name is already online");
}
else
{
Client clientData;
AllClients.TotalClients.TryGetValue(this.UserName, out clientData);
this.ClientData = clientData.ClientData;
AllClients.Remove(this.UserName);
Write("login\r\nok");
AllClients.Add(UserName, this);
}
}
else
{
foreach (Client client in AllClients.TotalClients.Values)
{
if (client.IsDoctor && client.IsOnline)
{
client.Write($"AddClient\r\n{UserName}");
}
}
Write("login\r\nok");
AllClients.Add(UserName, this);
}
break;
case "data":
if (!AssertPacketData(packetData, 8))
{
return;
}
this.ClientData.AddData(packetData[1], packetData[2], packetData[3], packetData[4], packetData[5], packetData[6], packetData[7]);
Write("data\r\nData Recieved");
this.ClientData.PrintData();
//send real time data to all connected doctors
foreach (Client client in AllClients.TotalClients.Values)
{
if (client.IsDoctor && client.IsOnline)
{
Console.WriteLine("Data size: " + this.ClientData.Data.Count);
string recentDataJson = JsonConvert.SerializeObject(this.ClientData.Data);
Console.WriteLine("Sending realtime: " + recentDataJson);
client.Write($"RealTimeData\r\n{this.UserName}\r\n{recentDataJson}");
}
}
break;
case "DoctorLogin":
Console.WriteLine("DoctorLogin received");
if (!AssertPacketData(packetData, 3))
{
return;
}
string username = packetData[1];
string password = packetData[2];
//check password
Dictionary <string, string> passwords = DoctorPasswordData.DoctorPassWords;
string dictionaryPassword;
if (AllClients.TotalClients.ContainsKey(username))
{
Client client;
AllClients.TotalClients.TryGetValue(username, out client);
if (client.IsOnline)
{
Write("DoctorLogin\r\nerror\r\nYou are already logged in somewhere else!");
return;
}
}
if (passwords.ContainsKey(username))
{
passwords.TryGetValue(username, out dictionaryPassword);
if (dictionaryPassword.Equals(password))
{
this.UserName = username;
Console.WriteLine("correct password");
this.IsDoctor = true;
Write("DoctorLogin\r\nok");
if (AllClients.TotalClients.ContainsKey(username))
{
AllClients.TotalClients.Remove(username);
}
AllClients.TotalClients.Add(username, this);
this.IsOnline = true;
}
else
{
Console.WriteLine("incorrect password");
Write("DoctorLogin\r\nerror\r\nIncorrect password");
}
}
else
{
Console.WriteLine("incorrect username");
Write("DoctorLogin\r\nerror\r\nIncorrect username");
}
break;
case "GetHistoricData": //doctor wants historic data
if (!AssertPacketData(packetData, 2) || !this.IsDoctor)
{
return;
}
string dataUsername = packetData[1];
Client userClient;
bool gotValue = AllClients.TotalClients.TryGetValue(dataUsername, out userClient);
if (!gotValue)
{
Write("GetHistoricData\r\nerror\r\nUsername not found");
}
else
{
//We moeten de graph lijst pakken i.p.v. de getJson!!!
string historicDataJson = JsonConvert.SerializeObject(userClient.ClientData.Graphs);
Write($"GetHistoricData\r\n{dataUsername}\r\n{historicDataJson}");
}
break;
case "GetRealtimeData":
if (!IsDoctor)
{
return;
}
break;
case "StartTraining":
//Server ontvangt dit en moet dit doorsturen naar bijbehorende Client
if (!AssertPacketData(packetData, 2) || !this.IsDoctor)
{
return;
}
dataUsername = packetData[1];
gotValue = AllClients.TotalClients.TryGetValue(dataUsername, out userClient);
if (!gotValue)
{
Write("StartTraining\r\nerror\r\nUsername not found");
}
else
{
if (!userClient.IsOnline)
{
Write("StartTraining\r\nerror\r\nUser not online");
}
else
{
userClient.Write("StartTraining");
Write("StartTraining\r\nok");
userClient.ClientData.StartGraph();
}
}
break;
case "StopTraining":
//Server ontvangt dit en moet dit doorsturen naar bijbehorende Client
if (!AssertPacketData(packetData, 2) || !this.IsDoctor)
{
return;
}
dataUsername = packetData[1];
gotValue = AllClients.TotalClients.TryGetValue(dataUsername, out userClient);
if (!gotValue)
{
Write("StopTraining\r\nerror\r\nUsername not found");
}
else
{
if (!userClient.IsOnline)
{
Write("StopTraining\r\nerror\r\nUser not online");
}
else
{
userClient.Write("StopTraining");
Write("StopTraining\r\nok");
userClient.ClientData.FinishGraph();
}
}
break;
case "chatToAll":
if (!AssertPacketData(packetData, 2))
{
return;
}
if (this.IsDoctor)
{
string messageToAll = packetData[1];
foreach (Client client in AllClients.TotalClients.Values)
{
if (client.IsOnline)
{
client.Write($"chatToAll\r\nmessage\r\n[{this.UserName}]: {messageToAll}");
}
}
Write($"chatToAll\r\nok");
}
else
{
Write($"chatToAll\r\nerror\r\nOnly doctors can chat to all");
}
break;
case "directMessage":
if (!AssertPacketData(packetData, 3))
{
return;
}
string messageTo = packetData[1];
string message = packetData[2];
Client messageToClient;
gotValue = AllClients.TotalClients.TryGetValue(messageTo, out messageToClient);
if (gotValue)
{
if (this.IsDoctor || messageToClient.IsDoctor)
{
if (messageToClient.IsOnline)
{
messageToClient.Write($"directMessage\r\nmessage\r\n({this.UserName}): {message}");
Write($"directMessage\r\nok");
}
else
{
Write($"directMessage\r\nerror\r\nTarget client is not online");
}
}
}
else
{
Write($"directMessage\r\nerror\r\nNeither client is a doctor");
}
break;
case "GetClients":
if (!IsDoctor || !AssertPacketData(packetData, 1))
{
return;
}
string allUsernames = "";
int userAmount = 0;
foreach (Client client in AllClients.TotalClients.Values)
{
if (!client.IsDoctor)
{
allUsernames += "\r\n" + client.UserName;
userAmount++;
}
}
message = $"GetClients\r\nok\r\n{userAmount}{allUsernames}";
Write(message);
break;
case "SetResistance":
if (!AssertPacketData(packetData, 3))
{
return;
}
Client clientResistance;
AllClients.TotalClients.TryGetValue(packetData[1], out clientResistance);
if (clientResistance == null)
{
Write("SetResistance\r\nerror\r\nDid not find user");
}
else
{
clientResistance.Write($"SetResistance\r\n{packetData[2]}");
}
break;
default:
Console.WriteLine("Did not understand: " + packetData[0]);
break;
}
}
//Data Manager
//gillt für alle verbundenen Clients
public static void DataManager(Packet p)
{
try
{
//warten bis Packet verarbeitet wird --> Socket bereit
Thread.Sleep(100);
//----------------
ClientData client = ClientHandler.GetClientByID(p.SenderId);
if (client == null)
{
return;
}
//Anmeldunsfreie Packete+++++++++++++++++++++++++++++++++++++++++++++++
if (PublicPacketHandler(p, client))
{
return; //packet ist bereits bearbeitet
}
//Anmeldungspflicht+++++++++++++++++++++++++++++++++++++++++++++++++++++
//Console.WriteLine(client.id);
//Console.WriteLine(ClientHandler.checkLoginState(client.id));
if (!ClientHandler.checkLoginState(client.id))
{
ClientHandler.Send_Error_Message_to_Client(client, "Bitte Anmeldung durchführen!");
return;
}
//Angemeldet: (gesicherter Bereich)
//Console.WriteLine("received " + p.PacketType);
switch (p.PacketType)
{
case PacketType.Default:
//zum Testen
Thread.Sleep(500);
ClientHandler.Ausgabe("Debug", "packet Default received");
ClientHandler.SendSinglePacket(client, p);
break;
case PacketType.GetGewählteKurse:
GetKurse(client);
break;
case PacketType.GetAlleKurse:
Kurswahl(client);
break;
case PacketType.KursUpdate:
UpdateKurse(client, p);
break;
case PacketType.GetSchülerInKurs:
GetSchülerInKurs(client, p);
break;
case PacketType.GetSchülerInKlasse:
GetSchülerInKlasse(client, p);
break;
case PacketType.GetChat:
GetChat(client);
break;
case PacketType.SendChatNachricht:
SendChatNachricht(client, p);
break;
case PacketType.GetEreignisse:
GetEreignisse(client);
break;
case PacketType.SendEreigniss:
SendEreigniss(client, p);
break;
case PacketType.KlasseErstellen:
KlasseErstellen(client, p);
break;
case PacketType.GetKlasse:
getKlasse(client);
break;
case PacketType.CreateKurs:
CreateKurs(client, p);
break;
case PacketType.GetLehrer:
GetLehrer(client);
break;
case PacketType.DeleteEreignis:
DeleteEreignis(client, p);
break;
case PacketType.EditEreigniss:
EditEreigniss(client, p);
break;
case PacketType.GetLehrerofKurs:
GetLehrerofKurs(client, p);
break;
default:
ClientHandler.Send_Error_Message_to_Client(client, "Unerwartetes Packet!!!");
break;
}
}
catch (Exception exc)
{
ClientHandler.Ausgabe("PacketManager", exc.Message);
}
}
private static void RemoveClientFromList(ClientData c)
{
_clients.Remove(c);
}
private static void AbortClientThread(ClientData c)
{
c.clientThread.Abort();
}
public void setClientInfo(String ip, String clientID, ClientData d)
{
d.ClientID = clientID;
d.ClientIP = ip;
}
private static void CloseClientConnection(ClientData c)
{
c.clientSocket.Close();
}
/// <summary>
/// 服务端处理客户端信息循环。
/// </summary>
protected async void ClientLoop(TcpClient tc)
{
try
{
using (NetworkStream stream = tc.GetStream())
using (Timer timer = new Timer((object obj) => { stream.Close(); }, null, Timeout.Infinite, Timeout.Infinite))
{
await WriteFrame(stream, new Common.Frames.Information.RequestFrame()).ConfigureAwait(false);
timer.Change(Common.Configs.HelloTimeout, Timeout.Infinite);
var informationFrame = await ReadFrame(stream).ConfigureAwait(false) as Common.Frames.Information.AnswerFrame;
timer.Change(Timeout.Infinite, Timeout.Infinite);
if (informationFrame == null)
{
throw new Exception("Invalid Hello.");
}
ClientData client = new ClientData(this, tc, informationFrame);
try
{
OnConnect?.Invoke(client);
}
catch { }
try
{
Heartbeat(stream);
while (true)
{
timer.Change(Common.Configs.HeartbeatInterval * 3, Timeout.Infinite);
FrameBase frame = await ReadFrame(stream).ConfigureAwait(false);
timer.Change(Timeout.Infinite, Timeout.Infinite);
if (Common.Configs.Debug)
{
Console.WriteLine("R >" + frame.GetType().ToString());
}
OnFrame?.Invoke(client, frame);
}
}
catch { }
try
{
OnDisconnect?.Invoke(client);
}
catch { }
}
}
catch (Exception ex)
{
if (Common.Configs.Debug)
{
Console.WriteLine(ex.Message);
}
}
}
public void ListenerThread()
{
try
{
IPHostEntry ipHost = Dns.Resolve("192.168.0.8");
IPAddress ipAddr = ipHost.AddressList[0];
tcpClient = new TcpListener(ipAddr, tcpPortNum);
udpSock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
tcpClient.Start();
isRunning = true;
// db = new DBConnect(this);
con = new ConnectHandler(this);
checkACK = new CheckACKThread(this, avdPortNum);
Dict_Client = new Dictionary <int, ClientData>();
// 클라이언트의 연결 요청 확인
logMSG("info", "TCP 클라이언트 대기중... CloudPhoneTestServer.ListenerThread");
while (isRunning)
{
clientData = new ClientData();
clientData.AVDPortNum = avdPortNum;
while (!tcpClient.Pending())
{
if (isRunning == false)
{
tcpClient.Server.Close(0);
tcpClient.Stop();
tcpClient = null;
}
Thread.Sleep(100);
}
//logMSG("info", "클라이언트의 요청 발견... CloudPhoneTestServer.ListenerThread");
// logMSG("info", "TCP 클라이언트 통신용 쓰레드 생성 CloudPhoneTestServer new ConnectionHandler");
con.threadListener = this.tcpClient;
tcpThread = new Thread(new ThreadStart(con.clientHandler));
tcpThread.Start();
logMSG("info", "tcpThread 시작");
Thread.Sleep(2000);
// TCP로 메시지를 받았으면 바로 BackGroundThread 실행(UDP)
//logMSG("info", "UDP Thread 실행 준비");
setClientInfo(con.ip, con.clientID, clientData);
// DB 에 클라이언트 ID가 있는 지 체크하고 등록한다.
//db.CheckClientID(clientData.ClientID);
Dict_ClientID.Add(clientData.ClientID, avdPortNum);
ACKThread = new Thread(new ThreadStart(checkACK.SendAckToClient));
clientData._TcpThreadClass = con;
clientData.TCPThread = tcpThread;
clientData._AckThreadClass = checkACK;
clientData.ACKThread = ACKThread;
Dict_Client.Add(avdPortNum, clientData);
ACKThread.Start();
logMSG("info", "ACKThread 시작");
StartAVD(avdPortNum);
IPHostEntry _ipHost = Dns.Resolve(clientData.ClientIP);
IPAddress _ipAddr = _ipHost.AddressList[0];
IPEndPoint ipep = new IPEndPoint(_ipAddr, udpPortNum);
checkBG = new CheckBackGroundThread(this, udpSock, ipep);
udpThread = new Thread(new ThreadStart(checkBG.udpCheckbg));
//logMSG("info", "UDP 클라이언트 통신용 쓰레드 생성... CheckBackGroundThread 실행");
udpThread.Start();
logMSG("info", "udpThread 시작");
// ClientData Set
Dict_Client[avdPortNum]._UdpThreadClass = checkBG;
Dict_Client[avdPortNum].UDPThread = udpThread;
Thread.Sleep(300);
}
}
catch (Exception e)
{
logMSG("error", "ListenerThread : " + e.Message);
isRunning = false;
isConnected = false;
}
finally // TCP, UDP 종료
{
if (tcpClient != null)
{
try
{
// tcpClient.Server.Shutdown(SocketShutdown.Both);
}
catch (Exception e)
{
logMSG("error", "tcpClient Shutdown Err : " + e.Message);
}
finally
{
tcpClient.Server.Close(0);
tcpClient.Stop();
tcpClient = null;
}
}
if (udpSock != null)
{
// udpSock.Shutdown(SocketShutdown.Both);
udpSock.Close();
udpSock = null;
}
}
}
private static void CloseClientConnection(ClientData c)
{
c.clientSocket.Close();
}
private static void RemoveClientFromList(ClientData c)
{
clients.Remove(c);
}
private static void AbortClientThread(ClientData c)
{
c.clientThread.Abort();
}
public void ReadDb(string ip, ClientData cli)
{
//ClientData cli = new ClientData();
try
{
_con.Open();
var cmd = new SQLiteCommand(_con);
cmd.CommandText = "SELECT * FROM Cars WHERE IPAddress = '" + ip + "'";
SQLiteDataReader reader = cmd.ExecuteReader();
reader.Read();
cli.ID = reader.GetInt32(0);
cli.TEAM = reader.GetString(1);
cli.IP = reader.GetString(2);
cli.WEAR = reader.GetInt32(3);
}
catch (Exception e)
{
if (DEBUG)
MessageBox.Show("Error: " + e.Message);
_con.Close();
}
_con.Close();
}
//packet senden++++++++++++++++++++++++++++++++++++++++++++++++++++++++
public static void SendSinglePacket(ClientData client, Packet p)
{
TCP_connection.SendPacket(client.clientSocket, p, new TCP_connection.ExceptionCallback(SocketDisconnectedException));
}
//Error zum Client weiterleiten
public static void Send_Error_Message_to_Client(ClientData c, string msg)
{
Packet p = new Packet(msg);
SendSinglePacket(c, p);
}
public static ClientData GetClientByID(string id)
{
ClientData client = lst_clients[GetClientIndexbyID(id)];
return(client);
}
