blob: 786951b066d8e5e269e1ea374cfd3479769e5809 (
plain)
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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Commands;
using Tango.Core.Cryptography;
using Tango.MachineStudio.Common;
using Tango.MachineStudio.Common.Authentication;
using Tango.MachineStudio.Common.EventLogging;
using Tango.MachineStudio.Common.Navigation;
using Tango.MachineStudio.Common.Notifications;
using Tango.Settings;
using Tango.SharedUI;
namespace Tango.MachineStudio.UI.ViewModels
{
/// <summary>
/// Represents the Machine Studio login view, view model.
/// </summary>
/// <seealso cref="Tango.SharedUI.ViewModel" />
public class LoginViewVM : ViewModel
{
private IAuthenticationProvider _authenticationProvider;
private INavigationManager _navigationManager;
private INotificationProvider _notificationProvider;
private IEventLogger _eventLogger;
private Rfc2898Cryptographer cryptographer;
private MachineStudioSettings _settings;
private String _email;
/// <summary>
/// Gets or sets the email.
/// </summary>
[Required(ErrorMessage = "Email is required")]
[EmailAddress(ErrorMessage = "Please enter a valid email")]
public String Email
{
get { return _email; }
set { _email = value; RaisePropertyChangedAuto(); }
}
private String _password;
[Required(ErrorMessage = "Password is required")]
public String Password
{
get { return _password; }
set { _password = value; RaisePropertyChangedAuto(); }
}
private bool _rememberMe;
/// <summary>
/// Gets or sets a value indicating whether to remember the last user email and password.
/// </summary>
public bool RememberMe
{
get { return _rememberMe; }
set { _rememberMe = value; RaisePropertyChangedAuto(); }
}
/// <summary>
/// Gets or sets the login command.
/// </summary>
public RelayCommand LoginCommand { get; set; }
/// <summary>
/// Initializes a new instance of the <see cref="LoginViewVM"/> class.
/// </summary>
/// <param name="authenticationProvider">The authentication provider.</param>
/// <param name="navigationManager">The navigation manager.</param>
/// <param name="notificationProvider">The notification provider.</param>
public LoginViewVM(IAuthenticationProvider authenticationProvider, INavigationManager navigationManager, INotificationProvider notificationProvider, IEventLogger eventLogger)
{
_settings = SettingsManager.Default.GetOrCreate<MachineStudioSettings>();
_notificationProvider = notificationProvider;
_navigationManager = navigationManager;
_authenticationProvider = authenticationProvider;
_eventLogger = eventLogger;
LoginCommand = new RelayCommand(Login);
cryptographer = new Rfc2898Cryptographer();
Email = _settings.LastLoginEmail;
RememberMe = _settings.RememberMe;
Password = cryptographer.Decrypt(_settings.LastLoginPassword);
}
/// <summary>
/// Logins the requested user.
/// </summary>
private void Login()
{
if (Validate())
{
try
{
_authenticationProvider.Login(Email, Password);
_navigationManager.NavigateTo(NavigationView.MainView);
_settings.LastLoginEmail = Email;
_settings.RememberMe = RememberMe;
_settings.LastLoginPassword = RememberMe ? cryptographer.Encrypt(Password) : null;
_settings.Save();
_eventLogger.Log("User logged in");
}
catch
{
_notificationProvider.ShowError("Invalid credentials. Please try again.");
}
}
}
}
}
|
