private void CustomButton_Click(object sender, System.EventArgs e)
{
var buttonThatIsClicked = (CustomButton)sender;
var data = StringCipher.Decrypt(buttonThatIsClicked.EncryptedData, buttonThatIsClicked.AccountPassword);
Clipboard.SetText(data);
}
//Encrypted password on passwordbox is decrypted and when Copy Button is pressed
//and copies the password to the ClipBoard
private void BtnCopy_Click(object sender, RoutedEventArgs e)
{
string tempPwd = this.txtPassword.Text.ToString();
Clipboard.SetText(StringCipher.Decrypt(tempPwd, LoginInfo.MasterPwd));
MessageBoxResult result = MessageBox.Show(this, "Password Copied to Clipboard", "Success!", MessageBoxButton.OK, MessageBoxImage.Information);
}
//Edit button decrypts the password in passwordbox and enables the textbox maskbox and enables save button
private void BtnEdit_Click(object sender, RoutedEventArgs e)
{
EnableEdit();
string ePassword = txtPassword.Text.ToString();
txtMaskBox.Text = StringCipher.Decrypt(ePassword, LoginInfo.MasterPwd);
btnSave.IsEnabled = true;
btnEdit.IsEnabled = false;
EnableEdit();
}
//method ChangeMp, takes old password and changes into the database
//once master password is updated
//all the account password encrypted by old password will be decrypted
//and encrypted again with the new masterpassword
public void ChangeMp(string oPwd, string nPwd)
{
//gets all the accounts from the database
string commandText = "prc_get_account";
SqlParameter[] param =
{
new SqlParameter("user_ID", LoginInfo.UserId)
};
DatabaseHandle dbh = new DatabaseHandle();
DataTable dt = new DataTable();
dt = dbh.ProcessData(commandText, param);
//update master password
int uid = LoginInfo.UserId;
string encMPwd = StringCipher.Encrypt(nPwd, nPwd);
string commandText1 = "prc_update_master_pwd";
SqlParameter[] param1 =
{
new SqlParameter("user_ID", uid),
new SqlParameter("master_pwd", encMPwd)
};
DatabaseHandle dbh1 = new DatabaseHandle();
DataTable dt1 = new DataTable();
dt1 = dbh1.ProcessData(commandText1, param1);
//update Login Info master password
LoginInfo.MasterPwd = nPwd;
//Update all the Account passwords
int rows = dt.Rows.Count;
int[] testArray = new int[rows];
string commandText2 = "prc_update_acccount_pwd";
foreach (DataRow dr in dt.Rows)
{
int id = int.Parse(dr["account_ID"].ToString());
string tempPassword = (dr["password"].ToString());
string plainPwd = StringCipher.Decrypt(tempPassword, oPwd);
string encPwd = StringCipher.Encrypt(plainPwd, nPwd);
SqlParameter[] param2 =
{
new SqlParameter("account_ID", id),
new SqlParameter("password", encPwd)
};
DatabaseHandle dbh2 = new DatabaseHandle();
DataTable dt2 = new DataTable();
dt2 = dbh2.ProcessData(commandText2, param2);
}
}
//GetDbPwd method gets the password stored in the database
//prc_get_accountpwd and sql parameter is passed to ProcessData method of class DatabaseHandle
//If database query returns the password, it is validated against user typed password
//If the database return empty datable meaning no password found for provied email
private string GetDbPwd(string email)
{
string commandText = "prc_get_accountpwd";
SqlParameter[] param =
{
new SqlParameter("email", email)
};
DatabaseHandle dbh = new DatabaseHandle();
DataTable dt = new DataTable();
dt = dbh.ProcessData(commandText, param);
//If query returns at least one row
if (dt.Rows.Count >= 1)
{
try
{
string txt_mp = txtMasterPwd.Password.ToString();
string encrypted_mp = dt.Rows[0][1].ToString(); //encrypted master password
//stores masterpassword, userId and email to the parameters in LoginInfo class
LoginInfo.MasterPwd = StringCipher.Decrypt(encrypted_mp, txt_mp);
LoginInfo.UserId = int.Parse(dt.Rows[0][0].ToString());
LoginInfo.Email = txtEmail.Text.ToString();
return(LoginInfo.MasterPwd);
}
catch
{
return("Incorrect Password");
}
}
//if empty datatable is returned the provided email didn't have any password
else
{
return("No password found for provided email");
}
}
private void BtnShow_Click(object sender, RoutedEventArgs e)
{
//encrypted password in stored in password box
//when user clicks on view password, the encrypted password will be decrypted
//using master password and displayed in MaskBox textbox
//ShowPassowrd button is toggled from View to Hide based on user intereaction
string ePassword = txtPassword.Text.ToString();
string maskPassword = txtMaskBox.Text.ToString();
string uname = txtUserName.Text.ToString();
if (btnShow.Content.ToString() == "View")
{
btnShow.Content = "Hide";
txtMaskBox.Text = StringCipher.Decrypt(ePassword, LoginInfo.MasterPwd);
}
else if (btnShow.Content.ToString() == "Hide")
{
btnShow.Content = "View";
txtMaskBox.Text = "********************";
}
}
private void copyEmailButton_Click(object sender, EventArgs e)
{
Clipboard.SetText(StringCipher.Decrypt(account.Email, password));
}
