/// <summary>
/// Accept friendship request.
/// </summary>
/// <param name="user">user.</param>
/// <param name="friendLogin">friend's login.</param>
/// <exception cref="ConnectionInterruptedException"></exception>
private void AcceptFriendshipRequest(OnlineUser user, string friendLogin)
{
int friendId = DBoperations.GetUserId(friendLogin);
if (friendId == 0)
{
return;
}
if (DBoperations.SetFriendship(friendId, user.Id, true))
{
// send new data to user one
SendIncomeFriendshipRequests(user);
SendFriends(user);
OnlineUser friend = GetOnlineUser(friendLogin);
// send notification to user two if online
if (friend != null)
{
friend.Client.SendMessage(new UserActionMessage
{
UserLogin = user.Login,
Time = DateTime.Now,
Action = UserActions.AcceptFriendship
});
}
// write to db
else
{
DBoperations.AddNotification(friendId, user.Id, UserActions.AcceptFriendship, DateTime.Now);
}
}
}
/// <summary>
/// Remove user from friends.
/// </summary>
/// <param name="user">user.</param>
/// <param name="friendLogin">friend's login.</param>
/// <exception cref="ConnectionInterruptedException"></exception>
private void RemoveFriend(OnlineUser user, string friendLogin)
{
int friendId = DBoperations.GetUserId(friendLogin);
if (friendId == 0)
{
return;
}
if (DBoperations.RemoveFriend(user.Id, friendId))
{
// send new data to user one
SendFriends(user);
OnlineUser friend = GetOnlineUser(friendLogin);
// send notification to user two if online
if (friend != null)
{
friend.Client.SendMessage(new UserActionMessage
{
UserLogin = user.Login,
Time = DateTime.Now,
Action = UserActions.RemoveFromFriends
});
}
// write to db
else
{
DBoperations.AddNotification(friendId, user.Id, UserActions.RemoveFromFriends, DateTime.Now);
}
}
}
/// <summary>
/// Send conversation to user.
/// </summary>
/// <param name="user">user.</param>
/// <param name="interlocutor">interlocutor of user in conversation.</param>
/// <exception cref="ConnectionInterruptedException"></exception>
private void SendConversation(OnlineUser user, string interlocutor)
{
int interlocutorId = DBoperations.GetUserId(interlocutor);
if (interlocutorId == 0)
{
return;
}
// get replies from db
ConversationReply[] replies = DBoperations.GetConversation(user.Id, interlocutorId);
if (replies != null)
{
foreach (var r in replies)
{
user.Client.SendMessage(new OldReplyMessage
{
Interlocutor = interlocutor,
Author = DBoperations.GetUserLogin(r.user_id),
Time = r.time,
Text = r.reply
});
}
}
}
/// <summary>
/// Handle new reply in conversation.
/// </summary>
/// <param name="user">user.</param>
/// <param name="interlocutor">interlocutor.</param>
/// <param name="text">text of reply.</param>
/// <exception cref="ConnectionInterruptedException"></exception>
private void HandleReply(OnlineUser user, string interlocutor, string text)
{
int interlocutorId = DBoperations.GetUserId(interlocutor);
if (interlocutorId == 0)
{
return;
}
// time of reply
DateTime time = DateTime.Now;
if (DBoperations.AddNewReply(user.Id, interlocutorId, text, time))
{
// send reply to user one
user.Client.SendMessage(new NewReplyMessage
{
Interlocutor = interlocutor,
Author = user.Login,
Time = time,
Text = text
});
// send reply to user two if online
OnlineUser friend = GetOnlineUser(interlocutor);
if (friend != null)
{
friend.Client.SendMessage(new NewReplyMessage
{
Interlocutor = user.Login,
Author = user.Login,
Time = time,
Text = text
});
}
// write notification to db
else
{
DBoperations.AddNotification(interlocutorId, user.Id, UserActions.MessageSended, DateTime.Now);
}
}
}
/// <summary>
/// Start listen to clients and process connected clients.
/// </summary>
public async void Start()
{
#if DEBUG
DBoperations.Register("13", "13");
for (int i = 0; i < 10; i++)
{
string login = "******" + i.ToString();
DBoperations.Register(login, login);
}
for (int i = 10; i < 20; i++)
{
string login = "******" + i.ToString();
DBoperations.Register(login, login);
DBoperations.SetFriendship(DBoperations.GetUserId(login), DBoperations.GetUserId("13"), false);
}
for (int i = 20; i < 30; i++)
{
string login = "******" + i.ToString();
DBoperations.Register(login, login);
DBoperations.SetFriendship(DBoperations.GetUserId("13"), DBoperations.GetUserId(login), false);
}
for (int i = 30; i < 40; i++)
{
string login = "******" + i.ToString();
DBoperations.Register(login, login);
DBoperations.SetFriendship(DBoperations.GetUserId("13"), DBoperations.GetUserId(login), true);
}
#endif
if (isStarted)
{
return;
}
if (certificate == null)
{
return;
}
mpListener = new MpListener(port, certificate);
mpListener.Start();
isStarted = true;
log.Info("Server is now listening.");
while (true)
{
try
{
MpClient client = await mpListener.AcceptMpClientAsync();
Task t = HandleClient(client);
activeTasks.Add(t);
// remove completed tasks
activeTasks.RemoveAll(x => x.IsCompleted);
}
catch (ConnectionInterruptedException e)
{
// connection with client broke
// nothing critical, just continue
log.Error("Connection with client broke.", e);
continue;
}
catch (SocketException e)
{
log.Error("Socket exception. Trying to restart listening.", e);
mpListener.Stop();
mpListener = null;
mpListener = new MpListener(port, certificate);
mpListener.Start();
continue;
}
catch (ObjectDisposedException)
{
// the way we stop server
break;
}
}
// wait for finishing process clients
Task.WaitAll(activeTasks.ToArray());
log.Info("Server is now stopped listening.");
isStarted = false;
}