partial void LoginButton_TouchUpInside(UIButton sender)
{
PasswordManager PM = new PasswordManager();
using (var connection = new SQLite.SQLiteConnection(pathToDatabase))
{
var query = connection.Table <User>();
foreach (User user in query)
{
UserList.Add(user);
}
//check if user existed in the database
if (gothroughDatabaseByUsername(UserList, UsernameText.Text) != null)
{
User selectedUser = gothroughDatabaseByUsername(UserList, UsernameText.Text);
//check if user typed match database account
if (PM.IsPasswordMatch(PasswordText.Text, selectedUser.OwnerSalt, selectedUser.HashedPassword))
{
UserPageController UPC = this.Storyboard.InstantiateViewController("userpagecontroller") as UserPageController;
NavigationController.PushViewController(UPC, true);
UPC.inAccountName = "Welcome" + UsernameText.Text;
}
//if account existed , password not match
else
{
var alert = UIAlertController.Create("Password Incorrect ", "Please input correct password", UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
}
else
{
var alert = UIAlertController.Create("Username does not exist", "Please input correct Username and password to login", UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
}
}
partial void SignUpButton_TouchUpInside(UIButton sender)
{
using (var connection = new SQLite.SQLiteConnection(pathToDatabase))
{
/*
* check if password match
*/
//if password match
if ((PasswordText.Text).Equals(ConfirmPasswordText.Text))
{
//check if entered Username existed
if (!isAccountExisted(UsernameText.Text, pathToDatabase))
{
/*
* Hash and salt the password
*/
PasswordManager PM = new PasswordManager();
string salt = SaltGenerator.GetSaltString();
string HashedPwd = PM.GeneratePasswordHash(PasswordText.Text, out salt);
User newuser = new User();
newuser.Username = UsernameText.Text;
newuser.HashedPassword = HashedPwd;
newuser.OwnerSalt = salt;
newuser.Email = EmailText.Text;
/*
* Check if User type valid
*/
//Username should more than 5 charactors
if (newuser.Username.Length > 5)
{
//Password should contain number and upper & lower case
if (CheckPassword(PasswordText.Text))
{
//Email should in the correct format
if (CheckEmailValidation(newuser.Email))
{
connection.Insert(newuser);
//After login successfully , auto go to the userpage controller
UserPageController UPC = this.Storyboard.InstantiateViewController("userpagecontroller") as UserPageController;
NavigationController.PushViewController(UPC, true);
UPC.inAccountName = "Welcome" + UsernameText.Text;
var alert = UIAlertController.Create("Successful", "You have been signed up ", UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
else
{
var alert = UIAlertController.Create("Email format not correct", "Please type a valid email address", UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
}
else
{
var alert = UIAlertController.Create("Password format incorrect", "Password should contain number , upper and lower case", UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
}
else
{
var alert = UIAlertController.Create("Username format incorrect", "Username should have more than 5 charactor", UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
}
/*
* if User existed
*/
else
{
var alert = UIAlertController.Create("Username already used", "Please use a new one", UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
}
//password not match
else
{
var alert = UIAlertController.Create("Password not match", "Please make sure ConfirmPassword match the password", UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
}
}