public TrainerModel GetTrainerByCredentials(CredentialsModel credentials)
{
TrainerModel trainerToCheck = new TrainerModel(db.Trainers.SingleOrDefault(p => p.Username == credentials.Username));
credentials.Password = Convert.ToBase64String(KeyDerivation.Pbkdf2(
password: credentials.Password,
salt: Convert.FromBase64String(trainerToCheck.Salt),
prf: KeyDerivationPrf.HMACSHA1,
iterationCount: 10000,
numBytesRequested: 256 / 8));
if (credentials.Password == trainerToCheck.Password)
{
return(trainerToCheck);
}
return(null);
}
public IActionResult Register(TrainerModel trainer)
{
try
{
if (authLogic.isTrainerNameExists(trainer.Username))
{
return(BadRequest("Username already exists! Choose another username."));
}
trainer = authLogic.Register(trainer);
trainer.JwtToken = jwtHelper.GetJwtToken(trainer.Username);
trainer.Password = null;
return(Created("api/trainers" + trainer.TrainerId, trainer));
}
catch (Exception ex)
{
return(StatusCode(StatusCodes.Status500InternalServerError, ex.Message));
}
}
public IActionResult Login(CredentialsModel credentials)
{
try
{
TrainerModel trainer = authLogic.GetTrainerByCredentials(credentials);
if (trainer == null)
{
return(Unauthorized("incorrect trainername or password"));
}
trainer.JwtToken = jwtHelper.GetJwtToken(trainer.Username);
trainer.Password = null;
return(Ok(trainer));
}
catch (Exception ex)
{
return(StatusCode(StatusCodes.Status500InternalServerError, ex.Message));
}
}
public TrainerModel Register(TrainerModel trainer)
{
trainer.TrainerId = Guid.NewGuid().ToString();
byte[] salt = new byte[128 / 8];
using (var rng = RandomNumberGenerator.Create())
{
rng.GetBytes(salt);
}
trainer.Salt = Convert.ToBase64String(salt);
trainer.Password = Convert.ToBase64String(KeyDerivation.Pbkdf2(
password: trainer.Password,
salt: salt,
prf: KeyDerivationPrf.HMACSHA1,
iterationCount: 10000,
numBytesRequested: 256 / 8));
Trainer trainerToAdd = trainer.ConvertToTrainer();
db.Trainers.Add(trainerToAdd);
db.SaveChanges();
trainer.TrainerId = trainerToAdd.TrainerId;
return(trainer);
}
