public string Login(string msg, int clientId)
{
string[] fields = msg.Split("$$", StringSplitOptions.RemoveEmptyEntries);
string username = fields[0].Split(':', StringSplitOptions.RemoveEmptyEntries)[1];
string password = fields[1].Split(':', StringSplitOptions.RemoveEmptyEntries)[1];
string passwordHash = "";
DbMethods dbConnection = new DbMethods();
lock (activeUsers[clientId]) { dbConnection = activeUsers[clientId].dbConnection; }
try { passwordHash = dbConnection.GetFromUser("password_hash", username); }
catch { return(TransmisionProtocol.CreateServerMessage(ErrorCodes.USER_NOT_FOUND, Options.LOGIN)); }
if (Security.VerifyPassword(passwordHash, password))
{
lock (activeUsers)
{
foreach (User u in activeUsers)
{
if (u != null)
{
if (u.userName == username && u.logged)
{
return(TransmisionProtocol.CreateServerMessage(ErrorCodes.USER_ALREADY_LOGGED_IN, Options.LOGIN));
}
}
}
activeUsers[clientId].logged = true;
activeUsers[clientId].userName = username;
activeUsers[clientId].userId = dbConnection.GetUserId(username);
}
return(TransmisionProtocol.CreateServerMessage(ErrorCodes.NO_ERROR, Options.LOGIN, dbConnection.GetFromUser("iv_to_decrypt_user_key", username), dbConnection.GetFromUser("user_key_hash", username)));
}
else
{
return(TransmisionProtocol.CreateServerMessage(ErrorCodes.INCORRECT_PASSWORD, Options.LOGIN));
}
}
public string Login(string msg, int clientId)
{
// Get message as object
Login login = MessageProccesing.DeserializeObject(msg) as Login;
// Get password hash from DB
string passwordHash;
DbMethods dbConnection = new DbMethods();
lock (activeUsers[clientId]) { dbConnection = activeUsers[clientId].dbConnection; }
try { passwordHash = dbConnection.GetFromUser("password_hash", login.username); }
catch { return(MessageProccesing.CreateMessage(ErrorCodes.USER_NOT_FOUND)); }
// Verify password
if (Security.VerifyPassword(passwordHash, login.passwordHash))
{
lock (activeUsers)
{
// Check if user isnt already logged in
foreach (User u in activeUsers)
{
if (u != null)
{
if (u.username == login.username && u.logged)
{
return(MessageProccesing.CreateMessage(ErrorCodes.USER_ALREADY_LOGGED_IN));
}
}
}
// If user isnt already logged in, add data to activeUsers
activeUsers[clientId].username = login.username;
activeUsers[clientId].logged = true;
activeUsers[clientId].userId = dbConnection.GetUserId(login.username);
}
// Start async thread
eventHandlers[activeUsers[clientId].username] = new EventWaitHandle(false, EventResetMode.ManualReset);
userLoginHandler[clientId].Set();
if (!whichFunction.ContainsKey(activeUsers[clientId].username))
{
whichFunction[activeUsers[clientId].username] = new List <Tuple <Options, string> >();
}
List <string> friends = activeUsers[clientId].dbConnection.GetFriendsNames(activeUsers[clientId].username);
foreach (var key in friends)
{
// Check if friend is active
if (activeUsers.Contains(new User {
username = key
}))
{
// Send to active friend information about activity of user
lock (whichFunction[key])
{
whichFunction[key].Add(new Tuple <Options, string>(Options.ACTIVE_FRIENDS, activeUsers[clientId].username));
eventHandlers[key].Set();
}
}
}
// Send invitations
lock (whichFunction[activeUsers[clientId].username]) whichFunction[activeUsers[clientId].username].Add(new Tuple <Options, string>(Options.FRIEND_INVITATIONS, activeUsers[clientId].username));
eventHandlers[activeUsers[clientId].username].Set();
return(MessageProccesing.CreateMessage(ErrorCodes.NO_ERROR));
}
else
{
return(MessageProccesing.CreateMessage(ErrorCodes.INCORRECT_PASSWORD));
}
}