public UC_NormalUserOperation()
{
InitializeComponent();
dataentity = new Model.WPF_ProjectDBEntities();
var q = from u in dataentity.UserInformations
where u.Username == UserViewModel.CurrentUser
select u;
this.DataContext = q.ToList();
}
//建立驗證使用者帳號密碼的方法。
public static LogonErrorTypes ValidateUser(string userName, string password)
{
if (userName == "")
{
return(LogonErrorTypes.LackOfUsername);
}
if (password == "")
{
return(LogonErrorTypes.LackOfPassword);
}
Model.WPF_ProjectDBEntities db = new Model.WPF_ProjectDBEntities();
//確認DataEntity中是否有帳號密碼相符的資訊。
foreach (Model.UserInformation u in db.UserInformations)
{
if (u.Username == userName)
{
byte[] bytesInputPassword = Encoding.Unicode.GetBytes(password + Encoding.Unicode.GetString(u.salt));
SHA256Managed Algorism = new SHA256Managed();
byte[] hashedInputPassword = Algorism.ComputeHash(bytesInputPassword);
if (u.Password.SequenceEqual(hashedInputPassword))
{
switch (u.UserType)
{
case "admin":
return(LogonErrorTypes.ValidAdminUser);
case "normal":
return(LogonErrorTypes.ValidNormalUser);
case "store":
return(LogonErrorTypes.ValidStoreUser);
default:
break;
}
}
else
{
return(LogonErrorTypes.InvalidUser);
}
}
}
return(LogonErrorTypes.UserNotExist);
}
public static RegisterErrorTypes UpdateUser(string email, string firstname, string lastname, string mobile, Image profilePic)
{
//確認資訊填寫完整程度。
if (email == "")
{
return(RegisterErrorTypes.LackOfEmail);
}
Model.WPF_ProjectDBEntities db = new Model.WPF_ProjectDBEntities();
//Window mainWindow = Application.Current.MainWindow;
//確認DataEntity中是否已存在相同email。
foreach (Model.UserInformation u in db.UserInformations)
{
if ((CurrentUser != u.Username) && (u.email == email))
{
return(RegisterErrorTypes.DuplicateEmail);
}
}
//將Image轉為byte[]
MemoryStream ms = new MemoryStream();
JpegBitmapEncoder encoder = new JpegBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create((BitmapSource)profilePic.Source));
encoder.Save(ms);
byte[] imgData = ms.ToArray();
ms.Close();
//經多重檢查無誤後，將帳號資訊登錄於DataEntity中。
var q = from u in db.UserInformations
where u.Username == CurrentUser
select u;
foreach (var user in q)
{
user.email = email;
user.Firstname = firstname;
user.Lastname = lastname;
user.mobile = mobile;
user.Photo = imgData;
}
db.SaveChanges();
return(RegisterErrorTypes.SuccessfulRegistration);
}
//建立移除使用者的方法。
public static void DeleteUser(string currentUser)
{
Model.WPF_ProjectDBEntities db = new Model.WPF_ProjectDBEntities();
var q = from u in db.UserInformations
where u.Username == currentUser
select u;
if (q != null)
{
db.UserInformations.RemoveRange(q);
db.SaveChanges();
MessageBox.Show("成功移除帳號!");
}
else
{
MessageBox.Show("移除失敗!");
}
}
public Merchandise()
{
InitializeComponent();
animalShoppingDB = new Model.WPF_ProjectDBEntities();
Loading();
}
//建立登錄使用者的方法。
public static RegisterErrorTypes CreateUser(string userName, string password, string password2, string email, string firstname, string lastname, string mobile, Image profilePic)
{
//確認資訊填寫完整程度。
if (userName == "")
{
return(RegisterErrorTypes.LackOfUsername);
}
if (email == "")
{
return(RegisterErrorTypes.LackOfEmail);
}
if (password == "")
{
return(RegisterErrorTypes.LackOfPassword);
}
if (password != password2)
{
return(RegisterErrorTypes.InconsistentPassword);
}
Model.WPF_ProjectDBEntities db = new Model.WPF_ProjectDBEntities();
//確認DataEntity中是否已存在相同帳號。
foreach (Model.UserInformation u in db.UserInformations)
{
if (u.Username == userName)
{
return(RegisterErrorTypes.DuplicatedUsername);
}
if (u.email == email)
{
return(RegisterErrorTypes.DuplicateEmail);
}
}
//用RNGCryptoServiceProvider產生隨機salt，加到cmd的參數中
RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider();
byte[] salt = new byte[32];
rng.GetBytes(salt);
//將password加上salt後進行加密
byte[] bytesPassword = Encoding.Unicode.GetBytes(password + Encoding.Unicode.GetString(salt));
SHA256Managed Algorism = new SHA256Managed();
byte[] hashedPassword = Algorism.ComputeHash(bytesPassword);
//將Image轉為byte[]
MemoryStream ms = new MemoryStream();
JpegBitmapEncoder encoder = new JpegBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create((BitmapSource)profilePic.Source));
encoder.Save(ms);
byte[] imgData = ms.ToArray();
ms.Close();
//經多重檢查無誤後，將帳號資訊登錄於DataEntity中。
Model.UserInformation m = new Model.UserInformation
{
Username = userName,
Password = hashedPassword,
email = email,
salt = salt,
RegistrationDate = DateTime.Now,
Firstname = firstname,
Lastname = lastname,
mobile = mobile,
Photo = imgData,
UserType = "normal"
};
db.UserInformations.Add(m);
db.SaveChanges();
return(RegisterErrorTypes.SuccessfulRegistration);
}
public UC_NormalUserRegistration()
{
InitializeComponent();
data = new Model.WPF_ProjectDBEntities();
}
