public IActionResult Index(HexaGone.Models.UserLoginHelperModel user)
{
if (user.isLogin == "false")
{
user.LoginModel = null;
}
if (ModelState.IsValid)
{
if (user.isLogin == "true")
{
return(Content(user.LoginModel.Password));
}
else
{
return(Content(user.RegistrationModel.Password));
}
}
else
{
return(View(new UserLoginHelperModel()
{
isLogin = "******"
}));
}
}
public IActionResult Login(HexaGone.Models.UserLoginHelperModel user)
{
user.isLogin = "******";
//If userModel is Valid try to login the User
//Else return a good errorMessage
if (user.isValid())
{
user.errorMessage = "";
using (IDbConnection db = new MySqlConnection(Models.Dapper.connectionString))
{
//Correct Email format to all lower Case
if (user.LoginModel.Username.Contains("@"))
{
user.LoginModel.Email = user.LoginModel.Username.ToLower();
}
//Encrypt Password
user.LoginModel.Password = Hash.GetMD5Hash(user.LoginModel.Password);
//Create both sqlQueryCommands for Email and Username to test if User exists
string sqlQueryUsername = "******"" + user.LoginModel.Username + "\"";
string sqlQueryEmail = "Select * From User Where Email = \"" + user.LoginModel.Email + "\"";
List <LoginUserModel> possibleUser;
bool currentUserName = false;
bool currentUserMail = false;
//First test for UserName
try
{
possibleUser = db.Query <LoginUserModel>(sqlQueryUsername).ToList();
if (possibleUser.Count == 0)
{
//If Username doesn't exist set errorMessage, doesn't has to mean. That the User won't be logged in. Reason for Error can be, that Username is Email
user.errorMessage = "User doesn't exists";
}
else
{
//Set that the UserName is an Username and not an Email
currentUserName = true;
}
}
finally
{
}
//Second test for Email only if Username conatins an @
if (possibleUser.Count == 0)
{
try
{
possibleUser = db.Query <LoginUserModel>(sqlQueryEmail).ToList();
if (possibleUser.Count == 0 && user.LoginModel.Username.Contains("@"))
{
//return errorMessage that the User doesn't exists. Means that the User won't be Logged In
user.errorMessage = "Email doesn't exists";
}
else if (possibleUser.Count != 0 && user.LoginModel.Username.Contains("@"))
{
//Set that the UserName is an Email
currentUserMail = true;
currentUserName = false;
}
}
finally
{
}
}
//If true: return IndexPage with error
if (possibleUser.Count == 0)
{
//If User doesn't exists. Return LogInPage with errors
user.isLogin = "******";
return(View("Index", user));
}
//Try to LogIn the User with encrypted Password
else
{
//Try to LogIn the User. For loop wouldn't be needed, because every user exists only once,however if an error occurs it is less likely to crash
for (int i = 0; i < possibleUser.Count; i++)
{
//Compare Passwords if passwords are equal log in the User by getting data from the database and create the SessionCookie
var Item = possibleUser[i];
if (user.LoginModel.Password == Item.Password)
{
user.isLogin = "******";
string sqlQuery = "";
List <UserModel> userLoaded;
//If User logs in by Username get data by Username
//Else get data by Email
if (currentUserName)
{
sqlQuery = "Select * From User Where Username = \"" + user.LoginModel.Username + "\"";
}
else if (currentUserMail)
{
sqlQuery = "Select * From User Where Email = \"" + user.LoginModel.Email + "\"";
}
userLoaded = db.Query <UserModel>(sqlQuery).ToList();
HttpContext.Session.SetString("userKeyData", userLoaded[0].CreateSessionString());
//If User wants to stay Logged In create Cookie
if (user.stayLoggedIn)
{
//Create Cookie
CookieOptions stayLoggedIn = new CookieOptions();
stayLoggedIn.Expires = new DateTimeOffset(DateTime.Now.AddYears(100));
user.errorMessage = "";
//Safe Cookie
HttpContext.Response.Cookies.Append("stayLoggedIn", userLoaded[0].UserId.ToString(), stayLoggedIn);
}
//If User comes from a restricted page redirect back to it
if (!String.IsNullOrEmpty(user.redirectTo))
{
if (user.redirectTo == "Game")
{
return(Game());
}
}
//else redirect back to LogedInIndex Page
return(View("LogedInIndex", userLoaded[0]));
}
}
}
}
//If User couldn't be Logged In because of wrong Password return IndexPage with errorMessage
user.isLogin = "******";
user.errorMessage = "Password is incorrect";
return(View("Index", user));
}
else
{
user.isLogin = "******";
user.errorMessage = user.LoginModel.IsValid();
//return Login Page with ErrorMessage added
return(View("Index", user));
}
}
public IActionResult Register(HexaGone.Models.UserLoginHelperModel user)
{
user.isLogin = "******";
//If given Data is correct. Try to create User in database. First verify if an user with similar data already exists.
//Else return errorMessage
if (user.isValid())
{
user.errorMessage = "";
using (IDbConnection db = new MySqlConnection(Models.Dapper.connectionString))
{
user.RegistrationModel.Email = user.RegistrationModel.Email.ToLower();
string sqlQuery = "Select * From User Where Username = \"" + user.RegistrationModel.Username + "\"";
string sqlQuery2 = "Select * From User Where Email = \"" + user.RegistrationModel.Email + "\"";
List <LoginUserModel> possibleUser = new List <LoginUserModel>();
//First try if the Username exists and give back an error via errorMessage
try
{
possibleUser = db.Query <LoginUserModel>(sqlQuery).ToList();
if (possibleUser.Count != 0)
{
user.errorMessage = "Username already exists";
}
}
finally
{
}
//If the Username doesn't exists, try to find a same email adress in database
if (possibleUser.Count == 0)
{
try
{
possibleUser = db.Query <LoginUserModel>(sqlQuery2).ToList();
if (possibleUser.Count != 0)
{
//Email exists, give back an error via errorMessage
user.errorMessage = "Email already exists";
}
}
finally
{
}
}
if (possibleUser.Count != 0)
{
//Something went really wrong redirect to Index... Shouldn't get to this point and doesn't, as long as the database is up and running
user.isLogin = "******";
return(View("Index", user));
}
else
{
}
//Create sqlCommand and encrypt password
sqlQuery = "Insert Into User (Email, Username, Password) Values(@Email, @Username, @Password)";
user.RegistrationModel.Password = Hash.GetMD5Hash(user.RegistrationModel.Password);
//Create new User in database
int rowsAffected = db.Execute(sqlQuery, user.RegistrationModel);
//if Creation was done right create Session cookie
if (rowsAffected > 0)
{
List <UserModel> userLoaded;
sqlQuery = "Select * From User Where Username = \"" + user.RegistrationModel.Username + "\"";
userLoaded = db.Query <UserModel>(sqlQuery).ToList();
HttpContext.Session.SetString("userKeyData", userLoaded[0].CreateSessionString());
//return LoggedInIndex-Page
return(View("LogedInIndex", userLoaded[0]));
}
user.isLogin = "******";
return(View("Index", user));
}
}
else
{
user.isLogin = "******";
user.errorMessage = user.RegistrationModel.IsValid();
//return registration page, because RegistrationModel was not Valid, with good Errormessages
return(View("Index", user));
}
}
