public bool ChangePW(string Email, string OldPW, string NewPW)
{
try
{
int id = Int32.Parse(upid);
string oldguid = db.Users.Find(id).GUID;
byte[] oldpp = MemberMethod.HashPw(OldPW, oldguid);
if (db.Users.Any(n => n.Email == Email && n.UserPassword == oldpp))
{
User user = db.Users.Find(id);
string NewGUID = Guid.NewGuid().ToString("N");
user.UserPassword = MemberMethod.HashPw(NewPW, NewGUID);
user.GUID = NewGUID;
db.SaveChanges();
return(true);
}
else
{
return(false);
}
}
catch (Exception ex)
{
string me = ex.Message;
return(false);
}
}
public string LoginCheck(string UserName, string Password)
{
if (db.Users.Any(m => m.UserName == UserName))
{
User LoginUser = db.Users.Where(m => m.UserName == UserName).FirstOrDefault();
byte[] pw = MemberMethod.HashPw(Password, LoginUser.GUID);
upid = LoginUser.UserID.ToString();
if (!LoginUser.Enabled)
{
return("noenabled");
}
if (BitConverter.ToString(pw) == BitConverter.ToString(LoginUser.UserPassword) &&
LoginUser.VerificationCode == String.Empty)
{
return("islogin");
}
else
{
return("nologin");
}
}
else
{
return("nologin");
}
}
public string UpdatePassword(string NewPw, string Account)
{
try
{
var data = db.Users.FirstOrDefault(n => n.UserName == Account);
string guid = Guid.NewGuid().ToString("N");
string newverification = MemberMethod.GetNewPW();
byte[] hashPw = MemberMethod.HashPw(NewPw, guid);
data.UserPassword = hashPw;
data.GUID = guid;
data.VerificationCode = newverification;
db.SaveChanges();
return(newverification);
}
catch (Exception)
{
throw;
}
}