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- using System;
- using System.Collections.Generic;
- using System.ComponentModel;
- using System.Data;
- using System.Drawing;
- using System.Linq;
- using System.Text;
- using System.Threading.Tasks;
- using System.Windows.Forms;
- using MySql.Data.MySqlClient;
- namespace Project_Royal
- {
- public partial class Login : Form
- {
- private MySqlConnection conn;
- private string server;
- private string database;
- private string uid;
- private string password;
- public Login()
- {
- server = "82.197.130.215";
- database = "2190559_users";
- uid = "2190559_users";
- password = "";
- string connString;
- connString = $"SERVER={server};DATABASE={database};UID={uid};PASSWORD={password};";
- conn = new MySqlConnection(connString);
- InitializeComponent();
- }
- private void button2_Click(object sender, EventArgs e)
- {
- string user = textBox1.Text;
- string pass = textBox2.Text;
- if (Register(user, pass))
- {
- MessageBox.Show($"User {user} has been created!");
- }
- else
- {
- MessageBox.Show($"User {user} has not been created!");
- }
- }
- private void button1_Click(object sender, EventArgs e)
- {
- string user = textBox1.Text;
- string pass = textBox2.Text;
- if (IsLogin(user, pass))
- {
- MessageBox.Show($"Welcome {user}!");
- }
- else
- {
- MessageBox.Show($"{user} does not exist or password is incorrect!");
- }
- }
- public bool Register(string user, string pass)
- {
- string query = $"INSERT INTO Whitelisted (id, username, password) VALUE ('', '{user}', '{pass}');";
- try
- {
- if (OpenConnection())
- {
- MySqlCommand cmd = new MySqlCommand(query, conn);
- try
- {
- cmd.ExecuteNonQuery();
- return true;
- }
- catch (Exception ex)
- {
- return false;
- }
- }
- else
- {
- conn.Close();
- return false;
- }
- }
- catch (Exception ex)
- {
- conn.Close();
- return false;
- }
- }
- public bool IsLogin(string user, string pass)
- {
- string query = $"SELECT * FROM Whitelisted WHERE username = '{user}' AND password = '{pass}');";
- try
- {
- if (OpenConnection())
- {
- MySqlCommand cmd = new MySqlCommand(query, conn);
- MySqlDataReader reader = cmd.ExecuteReader();
- if (reader.Read())
- {
- reader.Close();
- conn.Close();
- return true;
- }
- else
- {
- reader.Close();
- conn.Close();
- return false;
- }
- }
- else
- {
- conn.Close();
- return false;
- }
- }
- catch (Exception ex)
- {
- conn.Close();
- return false;
- }
- }
- private bool OpenConnection()
- {
- try
- {
- conn.Open();
- return true;
- }
- catch (MySqlException ex)
- {
- switch (ex.Number)
- {
- case 0:
- MessageBox.Show("Connection to server failed!");
- break;
- case 1045:
- MessageBox.Show("Server username or password is incorrect!");
- break;
- }
- return false;
- }
- }
- }
- }
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