public void delete_user(USERS a)
{
try
{
List <string> string_lines = new List <string>();
string line2 = a.LOGIN_USERNAME + "," + ComputeSha256Hash(a.LOGIN_PASS);
using (StreamReader sr = new StreamReader(PATH))
{
string line1 = sr.ReadLine();
while (line1 != null)
{
string_lines.Add(line1);
line1 = sr.ReadLine();
}
}
bool count = false;
//removing the date line
for (int i = 0; i < string_lines.Count(); i++)
{
if (i == string_lines.IndexOf(line2) + 1)
{
string_lines.Remove((string_lines.ElementAt(i)));
}
}
//removing user
if (string_lines.Any(e => e.StartsWith(a.LOGIN_USERNAME) &&
string_lines.Any(es => es.EndsWith(ComputeSha256Hash(a.LOGIN_PASS)))))
{
string_lines.Remove(line2); count = true;
MessageBox.Show("USER DELETED!");
}
if (count == false)
{
MessageBox.Show("user not found!");
}
if (count == true)
{
StringBuilder sb = new StringBuilder();
string new_line = "";
foreach (string c in string_lines)
{
new_line = sb.Append(c).ToString();
new_line = sb.Append("\n").ToString();
}
File.WriteAllText(PATH, new_line);
}
}
catch (FileNotFoundException)
{
MessageBox.Show("File not found:+" + PATH + "\n CREATING FILE...");
var text = "USERNAME,PASSWORD\nNA/NA\n";
File.WriteAllText(PATH, text);
}
catch (IOException) { MessageBox.Show("I/O ERROR"); }
catch (Exception)
{
var E = MessageBox.Show("UNKNOWN ERROR! ERASE THE FILE AND REPLACE IT?", "ERROR", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Error);
if (E == DialogResult.Yes)
{
var f = MessageBox.Show("ARE YOU SURE?", "WARNING", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
if (f == DialogResult.Yes)
{
var text = "USERNAME/PASSWORD\nNA/NA\n";
File.WriteAllText(PATH, text);
}
else if (f == DialogResult.No)
{
MessageBox.Show("PLEASE REVIEW FILE SYNTAX!\n(USERNAME,PASSWORD)", "WARNING", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
else if (E == DialogResult.No)
{
MessageBox.Show("PLEASE REVIEW FILE SYNTAX!\n(USERNAME,PASSWORD)", "WARNING", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
}
private void button2_Click(object sender, EventArgs e)
{
USERS old_user = new USERS(usernme.Text, pass.Text);
delete_user(old_user);
}
public void login()
{
try
{
USERS new_user = new USERS(usernme.Text, pass.Text);
using (StreamReader sr = new StreamReader(PATH))
{
string line = usernme.Text + "," + ComputeSha256Hash(pass.Text);
bool existss = false;
string line1 = sr.ReadLine();
line1 = sr.ReadLine();
line1 = sr.ReadLine();
while (line1 != null)
{
if (line1 == line)
{
existss = true;
MessageBox.Show("WELCOME :" + new_user.LOGIN_USERNAME);
btn_register.Enabled = true;
button1.Enabled = true;
button2.Enabled = true;
usernme.Clear();
pass.Clear();
}
line1 = sr.ReadLine();
}
if (existss == false)
{
MessageBox.Show("user not found!");
}
;
}
}
catch (FileNotFoundException)
{
MessageBox.Show("File not found:+" + PATH + "\n CREATING FILE...");
var text = "USERNAME,PASSWORD\nNA/NA\n";
File.WriteAllText(PATH, text);
}
catch (IOException) { MessageBox.Show("I/O ERROR"); }
catch (Exception)
{
var E = MessageBox.Show("UNKNOWN ERROR! ERASE THE FILE AND REPLACE IT?", "ERROR", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Error);
if (E == DialogResult.Yes)
{
var f = MessageBox.Show("ARE YOU SURE?", "WARNING", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
if (f == DialogResult.Yes)
{
var text = "USERNAME/PASSWORD\nNA/NA\n";
File.WriteAllText(PATH, text);
}
else if (f == DialogResult.No)
{
MessageBox.Show("PLEASE REVIEW FILE SYNTAX!\n(USERNAME,PASSWORD)", "WARNING", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
else if (E == DialogResult.No)
{
MessageBox.Show("PLEASE REVIEW FILE SYNTAX!\n(USERNAME,PASSWORD)", "WARNING", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
}