-
Notifications
You must be signed in to change notification settings - Fork 0
/
FormLogIn.cs
97 lines (84 loc) · 3.17 KB
/
FormLogIn.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
/***************************************************************************************
* Copyright (C) 2021 Fran Vojković, Martina Gaćina, Matea Čotić, Mirna Keser *
* *
* This file is part of the RP3_Projekt project. *
* *
***************************************************************************************/
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 System.Data.SqlClient;
namespace CaffeBar
{
/// <summary>
/// The entry point for the application - login.
/// </summary>
public partial class FormLogIn : Form
{
public FormLogIn()
{
InitializeComponent();
}
private void buttonLogin_Click(object sender, EventArgs e)
{
SqlConnection connection = DB.getConnection();
SqlCommand command = new SqlCommand("SELECT Id, Password, Authorisation FROM [User] WHERE Username=@username;", connection);
command.Parameters.Add("@username", SqlDbType.NChar);
command.Parameters["@username"].Value = textBoxUsername.Text.ToString();
SqlDataReader dataReader;
String pass = "";
try
{
dataReader = command.ExecuteReader();
if (!dataReader.HasRows)
{
MessageBox.Show("Invalid credentials!");
DB.closeConnection();
return;
}
dataReader.Read();
User.id = dataReader.GetInt32(0);
pass = (String)dataReader.GetValue(1);
User.authorisation = dataReader.GetString(2);
User.name = textBoxUsername.Text.ToString();
}
catch (Exception ex)
{
MessageBox.Show("ERROR: Database connection unsuccessful!" + ex.ToString());
}
finally
{
DB.closeConnection();
}
if (pass == Hash(textBoxPassword.Text.ToString()))//if (pass == textBoxPassword.Text.ToString())
{
this.Hide();
FormApp formApp = new FormApp();
formApp.ShowDialog();
}
else
MessageBox.Show("Invalid credentials!");
}
private void FormLogIn_Load(object sender, EventArgs e)
{
//za hash sptemit u bazu
//textBoxUsername.Text = Hash("konobar");
}
private string Hash(string password)
{
var bytes = new UTF8Encoding().GetBytes(password);
byte[] hashBytes;
using (var algorithm = new System.Security.Cryptography.SHA512Managed())
{
hashBytes = algorithm.ComputeHash(bytes);
}
return Convert.ToBase64String(hashBytes);
}
}
}