#pragma warning restore 1998
public async Task <SessionViewModel> Login(SecureString password)
{
var ip = new WebClient().DownloadStringTaskAsync("http://icanhazip.com");
var userList = await LoginViewModel.Where(x => UserName == x.UserName);
if (userList.Count() == 0)
{
return(null);
}
var user = userList.First();
string hash = PasswordUtils.ComputePassword(password, user.Salt);
if (hash != user.PasswordHash)
{
return(null);
}
var session = await SessionViewModel.Create();
session.Time = DateTime.Now;
session.UserLogin = user;
session.IP = await ip;
var student = (await StudentViewModel.Where(x => x.LoginId == user.Id)).FirstOrDefault();
if (student != null)
{
session.UserType = SessionViewModel.UserTypeEnum.Student;
session.User = student;
await session.Insert();
return(session);
}
var lecturer = (await LecturerViewModel.Where(x => x.LoginId == user.Id)).FirstOrDefault();
if (lecturer != null)
{
session.UserType = SessionViewModel.UserTypeEnum.Lecturer;
session.User = lecturer;
await session.Insert();
return(session);
}
var administrator = (await AdministratorViewModel.Where(x => x.LoginId == user.Id)).FirstOrDefault();
if (administrator != null)
{
session.UserType = SessionViewModel.UserTypeEnum.Administrator;
session.User = administrator;
await session.Insert();
return(session);
}
throw new NotSupportedException();
}
public async Task <bool> Register()
{
var userNameUnique = (await LoginViewModel.Where(x => UserName == x.UserName)).Count() == 0;
if (!userNameUnique)
{
new StyledMessageDialog("User name already exists. Please choose another one.", "Error registering", MessageBoxButton.OK).ShowDialog();
return(false);
}
var userLoginTask = await RegisterUserLogin();
switch (m_UserType)
{
case UserTypeEnum.Student:
{
var student = await StudentViewModel.Create();
student.Alias = Alias;
student.Email = m_Email;
student.FirstName = m_FirstName;
student.LastName = m_LastName;
student.LoginId = userLoginTask.Id;
await student.Insert();
}
return(true);
case UserTypeEnum.Lecturer:
{
var lecturer = await LecturerViewModel.Create();
lecturer.FacultyDepartment = Department;
lecturer.Email = m_Email;
lecturer.FirstName = m_FirstName;
lecturer.LastName = m_LastName;
lecturer.LoginId = userLoginTask.Id;
await lecturer.Insert();
}
return(true);
case UserTypeEnum.Administrator:
{
var administrator = await AdministratorViewModel.Create();
administrator.Email = m_Email;
administrator.FirstName = m_FirstName;
administrator.LastName = m_LastName;
administrator.LoginId = userLoginTask.Id;
await administrator.Insert();
}
return(true);
default:
throw new NotSupportedException();
}
}
public async Task LoadUsers()
{
var studentTask = StudentViewModel.Enumerate();
var lecturerTask = LecturerViewModel.Enumerate();
var adminTask = AdministratorViewModel.Enumerate();
var students = (await studentTask)as IEnumerable <IUserViewModel>;
var lecturers = (await lecturerTask)as IEnumerable <IUserViewModel>;
var admins = (await adminTask)as IEnumerable <IUserViewModel>;
Students = studentTask.Result;
Lecturers = lecturerTask.Result;
Administrators = adminTask.Result;
m_Users = new List <IUserViewModel>();
Users = m_Users.Union(students).Union(lecturers).Union(admins);
}
