/// <summary>
/// Initializes an instance of the <see cref="UserLoginResult"/> class
/// </summary>
/// <param name="resultStatus"></param>
/// <param name="message"></param>
/// <param name="userAccountDetails"></param>
public UserLoginResult(ServiceResultStatusCode resultStatus, string message, UserAccountDetailsDto userAccountDetails)
{
ResultStatus = resultStatus;
Message = message;
UserAccountDetails = userAccountDetails;
}
/// <summary>
/// Method to process login functionality
/// </summary>
/// <param name = "username" > String of the username</param>
/// <param name = "password" > String of the submitted password</param>
/// <returns>User object if authentication successful</returns>
public async Task <UserLoginResult> Login(string username, string password)
{
if (string.IsNullOrEmpty(username))
{
throw new ArgumentNullException(nameof(username));
}
if (string.IsNullOrEmpty(password))
{
throw new ArgumentNullException(nameof(password));
}
// attempt to retrieve a matching user from the db
var user = await _userDal.GetUserAsync(username);
string message;
// if not found return null
if (user == null)
{
message = $"User not found. \"Username\"={username}";
_log.LogInformation(message);
return(new UserLoginResult(ServiceResultStatusCode.NotFound, message, null));
}
if (user.State != AccountState.Active)
{
message = $"Account login failed. Account state is not active \"Username\"={username}, \"AccountState\"={user.State}";
return(new UserLoginResult(ServiceResultStatusCode.Failed, message, null));
}
if (user.JobDescription.Role == UserRole.Unknown)
{
message = $"Account login failed. Account role is unknown \"Username\"={username}, \"AccountRole\"={user.JobDescription.Role}";
return(new UserLoginResult(ServiceResultStatusCode.Failed, message, null));
}
// user found, check the password is correct and build the ClaimsPrincipal, if not, return null
if (!_cryptographyService.VerifyPasswordHash(user.PasswordHash, user.PasswordSalt, password))
{
message = $"Account login failed. Username or password not recognised. \"Username\"={username}";
_log.LogInformation(message);
return(new UserLoginResult(ServiceResultStatusCode.Failed, message, null));
}
var userAccountDetails = new UserAccountDetailsDto(user);
message = "Account login Success.";
_log.LogInformation(message);
var results = new UserLoginResult(ServiceResultStatusCode.Success, message, userAccountDetails);
if (user.JobDescription.Role == UserRole.Patient)
{
var patient = _patientUserDal.GetAssociatedPatient(user.Id);
if (patient != null)
{
results.PatientAccountPatientId = patient.Id;
}
}
return(results);
}
