public void updateGrid()
{
int brojac = -1; //counter used to count the id of the datagridview field
login fasdorm1 = new login();
masterusername = fasdorm1.getuser();
masterpassword = fasdorm1.getpassword();
//get the username and password of the user
dataGridView1.Rows.Clear();
//clear all the rows
SQLiteConnection dbConnection;
dbConnection =
new SQLiteConnection("Data Source=" + fajl() + ";Version=3;");
try
{
//connect to the file
dbConnection.Open();
int idbroj = 1; //promenliva za skladiranje na id brojot od posledniot rekord
string maxid = "SELECT MAX(ID) FROM passwords;"; //komanda za selektiranje na posledniot rekord
string sql = "SELECT * FROM passwords ORDER BY id ";
SQLiteCommand maxidkomanda = new SQLiteCommand(maxid, dbConnection);
SQLiteDataReader reader1 = maxidkomanda.ExecuteReader();
while (reader1.Read())
{
idbroj = reader1.GetInt32(0);
break;
//get the highest ID number from the records, as in the last record entered
}
reader1.Close();
SQLiteCommand command = new SQLiteCommand(sql, dbConnection);
SQLiteDataReader reader = command.ExecuteReader();
while (reader.Read())
{
// if (int.Parse(reader["id"].ToString()) <= idbroj )
// {
if (reader["id"].ToString() != "1") //if the record's ID isn't 1
//because the first record is used to store the encrypted password
{
if (reader["visible"].ToString() == "1") //if the record's visible field is set to 1
//because the "deleted" record's IDs are set to 0
{
brojac++;
//increment the counter (move to the next row of dataGridView)
dbid = reader["id"].ToString();
dburl = reader["URL"].ToString();
dbname = reader["name"].ToString();
dbusername = reader["username"].ToString();
dbpassword = reader["password"].ToString();
dbnotes = reader["notes"].ToString();
//get the record's data and turn it into strings
dataGridView1.Rows.Add();
dataGridView1.Rows[brojac].Cells[0].Value = (int.Parse(dbid)).ToString();
dataGridView1.Rows[brojac].Cells[1].Value = Cryptography.Decrypt(dburl, masterpassword);
dataGridView1.Rows[brojac].Cells[2].Value = Cryptography.Decrypt(dbname, masterpassword);
dataGridView1.Rows[brojac].Cells[3].Value = Cryptography.Decrypt(dbusername, masterpassword);
dataGridView1.Rows[brojac].Cells[4].Value = Cryptography.Decrypt(dbpassword, masterpassword);
dataGridView1.Rows[brojac].Cells[5].Value = Cryptography.Decrypt(dbnotes, masterpassword);
//input the record's data into the dataGridView table after it gets decrypted with the password gotten from the login form
}
}
}
dbConnection.Dispose();
dbConnection.Close();
reader.Close();
//close the connection
}
catch (Exception ex)
{
// MessageBox.Show(ex.Message);
}
}
private void proceed()
{
usernameTB.Text.Trim(); passwordTB.Text.Trim(); confirmPWTB.Text.Trim(); // Remove whitespace from the input entered into the textboxes.
string databasefajl = Appdatafolder() + "\\" + usernameTB.Text + ".sqlite";
//TODO: Rework authentication logic
#region checked
if (newUserCB.Checked) //If they selected the register option
{
if (passwordTB.Text.Equals(confirmPWTB.Text, StringComparison.Ordinal)) //Check if both of the passwords are the same
{
if (!string.IsNullOrWhiteSpace(usernameTB.Text)) //Check if the first password field is empty
{
if (!string.IsNullOrWhiteSpace(passwordTB.Text)) //Check if the second password field is empty
{
if (!File.Exists(databasefajl)) //If the file doesn't exist already, as in the username hasn't been registered
{
sharedSecret = passwordTB.Text;
string enkriptirandavid = Cryptography.Encrypt(sharedSecret, passwordTB.Text); //Encrypt the password with itself
SQLiteConnection.CreateFile(databasefajl); //Create a db file in %appdata% named username.sqlite
SQLiteConnection dbConnection;
dbConnection =
new SQLiteConnection("Data Source=" + databasefajl + ";Version=3;");
using (var myconnection = new SQLiteConnection(dbConnection))
{
myconnection.Open(); //Open the .sqlite file
try
{
string sqlinsert = "insert into passwords (url, name) values ('" + enkriptirandavid + "','" + enkriptirandavid + "');";
//sqlinsert.Parameters.AddWithValue("@url", enkriptirandavid);
SQLiteCommand sqlinsert1 = new SQLiteCommand(sqlinsert, myconnection);
string komanda = "create table passwords (id integer primary key autoincrement,URL varchar(150), name varchar(150)" +
",username varchar(150), password varchar(150), notes varchar(1500), visible integer)";
SQLiteCommand izvrsikomanda2 = new SQLiteCommand(komanda, myconnection);
izvrsikomanda2.ExecuteNonQuery(); //Create a table named passwords
sqlinsert1.ExecuteNonQuery(); //Fill the first record's first 2 fields with the encrypted password
myconnection.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
newUserCB.Checked = false;
MessageBox.Show("Registration was successful"); //Successful registration
proceed();
}
}
else
{
MessageBox.Show("That your name is already taken."); //Username already exists
}
}
else
{
MessageBox.Show("A password must be entered."); //No password entered
}
}
else
{
MessageBox.Show("A username must be entered."); //No username entered
}
}
else
{
MessageBox.Show("The passwords do not match each other."); //Password mismatch
}
}
#endregion
else
{
if (File.Exists(databasefajl)) //If the file exists already, when the username has been registered
{
sharedSecret = passwordTB.Text;
SQLiteConnection dbConnection;
dbConnection =
new SQLiteConnection("Data Source=" + databasefajl + ";Version=3;");
dbConnection.Open(); //Connect to the .sqlite file
string sql = "SELECT * FROM passwords ORDER BY id ";
SQLiteCommand command = new SQLiteCommand(sql, dbConnection);
SQLiteDataReader reader = command.ExecuteReader(); //Get the records inside
while (reader.Read())
{ //If (textBox2.Text == Cryptography.Decrypt(reader["URL"].ToString(), sharedsecret))
if (Cryptography.Encrypt(passwordTB.Text, sharedSecret) == reader["URL"].ToString())
//Encrypt the entered password with the one that is in the first record of the file
{
username = usernameTB.Text;
password = passwordTB.Text;
reader.Close();
dbConnection.Close();
OverviewForm form2 = new OverviewForm(); //Close the SQLITE connection and open the main form.
Hide();
form2.ShowDialog(this);
Close();
break;
}
else
{
MessageBox.Show("Погрешна лозинка"); //Wrong password
reader.Close();
dbConnection.Close();
}
}
}
else
{
MessageBox.Show("Корисничкото име не е регистрирано"); //Username not registered
}
}
}
private void button3_Click(object sender, EventArgs e)
{
if (dataGridView1.SelectedRows.Count > 0)
{
if (dataGridView1.SelectedRows.Count < 2)
{
//if only one row has been selected from the dataGridView table
int selectedid = int.Parse(dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells["id"].Value.ToString());
//get the selected row's ID from the hidden ID column
SQLiteConnection dbConnection;
dbConnection =
new SQLiteConnection("Data Source=" + fajl() + ";Version=3;");
try
{
//connect to the file
dbConnection.Open();
string sql = "SELECT * FROM passwords WHERE ID=" + selectedid + ";";
//select the record with the ID gotten from before
SQLiteCommand command = new SQLiteCommand(sql, dbConnection);
SQLiteDataReader reader = command.ExecuteReader();
while (reader.Read())
{
textBox1.Text = Cryptography.Decrypt(reader["URL"].ToString(), masterpassword);
textBox2.Text = Cryptography.Decrypt(reader["name"].ToString(), masterpassword);
textBox3.Text = Cryptography.Decrypt(reader["username"].ToString(), masterpassword);
textBox4.Text = Cryptography.Decrypt(reader["password"].ToString(), masterpassword);
textBox5.Text = Cryptography.Decrypt(reader["notes"].ToString(), masterpassword);
}
//fill the textboxes with the decrypted values of the record
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
//make the textfields visible
#region visible
label1.Visible = true;
label2.Visible = true;
label3.Visible = true;
label4.Visible = true;
label5.Visible = true;
textBox1.Visible = true;
textBox2.Visible = true;
textBox3.Visible = true;
textBox4.Visible = true;
textBox5.Visible = true;
button4.Visible = true;
button5.Visible = true;
#endregion
}
}
else
{
//make the text fields invisible
#region invisible
label1.Visible = false;
label2.Visible = false;
label3.Visible = false;
label4.Visible = false;
label5.Visible = false;
textBox1.Visible = false;
textBox2.Visible = false;
textBox3.Visible = false;
textBox4.Visible = false;
textBox5.Visible = false;
button4.Visible = false;
button5.Visible = false;
#endregion
}
}