/// <summary>
/// This method is responsable for handling the validation and verification of the users login attempt
/// </summary>
/// <param name="request">the users login information</param>
/// <returns>The response which indicates if they are sucessful and the bearer token
/// they will use for authentication on success</returns>
public LoginResponse LoginUser(LoginRequest request)
{
s_logger.Info("Attempting to log in...");
LoginResponse response = new LoginResponse();
try
{
//Validate input
response = (LoginResponse)request.CheckValidation(response);
if (response.Status == HttpStatusCode.BadRequest)
{
return(response);
}
var dataLayer = new UsersDataLayer();
//Verify user exists
UserDTO user = dataLayer.GetUserByUsername(request.Username);
if (user == null)
{
response.Token = string.Empty;
response.Status = HttpStatusCode.BadRequest;
response.StatusMessages.Add(new StatusMessage(HttpStatusCode.BadRequest, "Unable to login username or password is incorrect"));
s_logger.Warn($"Unable to login as a username [ {request.Username} ], username or password is incorrect.");
return(response);
}
// Ensure that their password is correct
string hashedPassword = HashText(request.Password);
if (user.Password != hashedPassword)
{
response.Token = string.Empty;
response.Status = HttpStatusCode.BadRequest;
response.StatusMessages.Add(new StatusMessage(HttpStatusCode.BadRequest, "Unable to login username or password is incorrect"));
s_logger.Warn($"Unable to login as a username [ {request.Username} ], username or password is incorrect.");
return(response);
}
// Generate users bearer token
var tokenHandler = new JwtSecurityTokenHandler();
var key = Encoding.ASCII.GetBytes(_appSettings.AppSecret);
var tokenDescriptior = new SecurityTokenDescriptor()
{
Subject = new ClaimsIdentity(new Claim[] {
new Claim(ClaimTypes.Name, user.Username),
new Claim(ClaimTypes.Sid, user.UserId.ToString())
}),
Expires = DateTime.Now.AddHours(4),
SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha512Signature)
};
var rawToken = tokenHandler.CreateToken(tokenDescriptior);
var token = tokenHandler.WriteToken(rawToken);
response.Token = token;
if (user.FirstTime)
{
response.Status = HttpStatusCode.Accepted;
response.UserId = user.UserId;
return(response);
}
response.Status = HttpStatusCode.OK;
}
catch (Exception ex)
{
s_logger.Error(ex, "Unable to perform log in attempt.");
response = new LoginResponse
{
Token = string.Empty,
Status = HttpStatusCode.InternalServerError
};
response.StatusMessages.Add(new StatusMessage(HttpStatusCode.InternalServerError, "Unable to perform log in attempt."));
}
return(response);
}
