/// <summary>
/// Function used to send a message to all users in a chatroom
/// </summary>
/// <param name="session"></param>
/// <param name="message"></param>
private void broadcastToChatRoom(Session session, string message)
{
Chatroom chatroom = session.User.Chatroom;
if (chatroom != null && message != "")
{
Message messageJoin = new Message(Message.Header.POST);
messageJoin.addData(session.User.Login);
messageJoin.addData(session.User.Login + ": " + message);
foreach (Session sessionUser in SessionManager.SessionList.ToList())
{
if (sessionUser.User.Chatroom != null &&
sessionUser.User.Chatroom.Name == chatroom.Name)
{
sendMessage(messageJoin, sessionUser.Client.Client);
}
}
Console.WriteLine("- " + session.User.Login + "'s message broadcast");
}
else
{
Console.WriteLine("- User is not connected to any chatroom: " + session.User.Login);
}
}
/// <summary>
/// Check if a client has left a chatroom
/// </summary>
/// <param name="session"></param>
/// <param name="message"></param>
private void quitCr(Session session, Message message)
{
try
{
if (session.User.Chatroom != null)
{
// Warn the user he left the chatroom
Message messageSuccess = new Message(Message.Header.QUIT_CR);
messageSuccess.addData("success");
messageSuccess.addData(session.User.Chatroom.Name);
sendMessage(messageSuccess, session.Client.Client);
// Warn the other users that this one left
broadcastToChatRoom(session, "left the chatroom \"" + session.User.Chatroom.Name + "\"");
Console.WriteLine("- " + session.User.Login + " left the chatroom: " + session.User.Chatroom.Name);
session.User.Chatroom = null;
}
}
catch (ChatroomUnknownException e)
{
// Warn the user the chatroom does not exist
Message messageError = new Message(Message.Header.QUIT_CR);
messageError.addData("error");
messageError.addData(message.MessageList[0]);
sendMessage(messageError, session.Client.Client);
messageError.addData("Chatroom " + e.Message + " does not exist");
}
}
/// <summary>
/// Process data sent by clients
/// </summary>
/// <param name="session">Session from where the message comes from</param>
/// <param name="message">Message received</param>
private void processData(Session session, Message message)
{
if (session.User != null)
{
switch (message.Head)
{
case Message.Header.QUIT:
{
// Warn the user he has been disconnected
Message messageSuccess = new Message(Message.Header.QUIT);
messageSuccess.addData("success");
sendMessage(messageSuccess, session.Client.Client);
if (session.User.Chatroom != null)
{
// Warn the other users that he left
broadcastToChatRoom(session, "left the chatroom \"" + session.User.Chatroom.Name + "\"");
}
session.Client.Close();
sessionManager.removeSession(session.Token);
Console.WriteLine("- User logout: " + session.Token);
}
break;
case Message.Header.JOIN_CR:
// Before joining a chatroom, let's leave the current one
quitCr(session, message);
try
{
List <string> messageList = message.MessageList;
if (chatroomManager.ChatroomList.Any(x => x.Name == messageList[0]))
{
session.User.Chatroom = new Chatroom(messageList[0]);
Console.WriteLine("- " + session.User.Login + " joined the chatroom: " + messageList[0]);
// Tell the client the channel has been joined
Message messageSuccess = new Message(Message.Header.JOIN_CR);
messageSuccess.addData("success");
messageSuccess.addData(messageList[0]);
sendMessage(messageSuccess, session.Client.Client);
//On broadcast à tous les participants de la conversations l'arrivée de l'utilisateur
Message messagePostBroadcast = new Message(Message.Header.POST);
broadcastToChatRoom(session, "joined the chatroom \"" + messageList[0] + "\"");
}
}
catch (ChatroomUnknownException e)
{
// Tell the client the channel has not been joined
Message messageSuccess = new Message(Message.Header.JOIN_CR);
messageSuccess.addData("error");
messageSuccess.addData(message.MessageList[0]);
sendMessage(messageSuccess, session.Client.Client);
messageSuccess.addData("Chatroom " + e.Message + " does not exist");
}
break;
case Message.Header.QUIT_CR:
quitCr(session, message);
break;
case Message.Header.CREATE_CR:
try
{
List <string> messageList = message.MessageList;
ChatroomManager.addChatroom(new Chatroom(messageList[0]));
ChatroomManager.save("chatrooms.db");
// Tell the users the chatroom has been created
Message messageSuccess = new Message(Message.Header.CREATE_CR);
messageSuccess.addData("success");
messageSuccess.addData(messageList[0]);
sendMessage(messageSuccess, session.Client.Client);
Console.WriteLine("- " + session.User.Login + " : chatroom has been created: " + messageList[0]);
}
catch (ChatroomAlreadyExistsException e)
{
// Warn the user the chatroom has not been created
Message messageError = new Message(Message.Header.CREATE_CR);
messageError.addData("error");
messageError.addData("Chatroom " + e.Message + " already exists");
sendMessage(messageError, session.Client.Client);
}
break;
case Message.Header.LIST_CR:
Message messageListCr = new Message(Message.Header.LIST_CR);
foreach (Chatroom chatroom in ChatroomManager.ChatroomList.ToList())
{
messageListCr.addData(chatroom.Name);
}
sendMessage(messageListCr, session.Client.Client);
break;
case Message.Header.POST:
Console.WriteLine("- " + session.User.Login + " : message received : " + message.MessageList[0]);
broadcastToChatRoom(session, message.MessageList[0]);
break;
case Message.Header.LIST_USERS:
List <string> chatroomWantedList = message.MessageList;
string chatroomWanted = chatroomWantedList[0];
Message messageListUsers = new Message(Message.Header.LIST_USERS);
// For all users currently connected
foreach (Session localSession in SessionManager.SessionList.ToList())
{
// If the user is in the chatroom we want the userlist
if (localSession.User != null &&
localSession.User.Chatroom != null &&
localSession.User.Chatroom.Name == chatroomWanted)
{
messageListUsers.addData(localSession.User.Login);
}
}
sendMessage(messageListUsers, session.Client.Client);
break;
}
}
else
{
switch (message.Head)
{
case Message.Header.REGISTER:
try
{
List <string> messageList = message.MessageList;
UserManager.addUser(messageList[0], messageList[1]);
UserManager.save("users.db");
// Tell the user his account has been created
Message messageSuccess = new Message(Message.Header.REGISTER);
messageSuccess.addData("success");
sendMessage(messageSuccess, session.Client.Client);
Console.WriteLine("- Registration success : " + messageList[0]);
}
catch (UserAlreadyExistsException e)
{
// Warn the user his account has not been created
Message messageSuccess = new Message(Message.Header.REGISTER);
messageSuccess.addData("error");
sendMessage(messageSuccess, session.Client.Client);
Console.WriteLine("- Registration failed : " + e.Message);
}
break;
case Message.Header.JOIN:
try
{
List <string> messageList = message.MessageList;
UserManager.authentify(messageList[0], messageList[1]);
session.User = new User(messageList[0], messageList[1]);
UserManager.save("users.db");
Message messageSuccess = new Message(Message.Header.JOIN);
messageSuccess.addData("success");
sendMessage(messageSuccess, session.Client.Client);
Console.WriteLine("- Login success : " + session.User.Login);
}
catch (WrongPasswordException e)
{
Message messageSuccess = new Message(Message.Header.JOIN);
messageSuccess.addData("error");
sendMessage(messageSuccess, session.Client.Client);
Console.WriteLine("- Login failed : " + e.Message);
}
break;
}
}
}