blob: 4472bbf1be62802aebba9d2050da5895238e52ae (
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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL;
using Tango.Core.Commands;
using Tango.Core.Cryptography;
using Tango.FSE.Common;
using Tango.FSE.Common.Navigation;
using Tango.FSE.Common.Notifications;
using Tango.MachineService.Gateway;
namespace Tango.FSE.UI.ViewModels
{
public class LoginViewVM : FSEViewModel, INavigationObjectReceiver<LoginViewVM.NavigationObject>
{
#region Navigation
public class NavigationObject
{
public bool IsLoggingOut { get; set; }
}
#endregion
private Rfc2898Cryptographer _cryptography;
public enum LoginViews
{
Login,
Logging
}
private LoginViews _selectedView;
public LoginViews SelectedView
{
get { return _selectedView; }
set { _selectedView = value; RaisePropertyChangedAuto(); }
}
private String _email;
[EmailAddress(ErrorMessage = "Please enter a valid email address")]
public String Email
{
get { return _email; }
set { _email = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
}
private String _password;
[Required(ErrorMessage = "Password is required")]
public String Password
{
get { return _password; }
set { _password = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
}
private bool _rememberMe;
public bool RememberMe
{
get { return _rememberMe; }
set { _rememberMe = value; RaisePropertyChangedAuto(); }
}
private EnvironmentConfiguration _selectedEnvironment;
public EnvironmentConfiguration SelectedEnvironment
{
get { return _selectedEnvironment; }
set { _selectedEnvironment = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
}
private String _status;
public String Status
{
get { return _status; }
set { _status = value; RaisePropertyChangedAuto(); }
}
public RelayCommand LoginCommand { get; set; }
public LoginViewVM()
{
_cryptography = new Rfc2898Cryptographer();
LoginCommand = new RelayCommand(Login, () => Email.IsNotNullOrEmpty() && Password.IsNotNullOrEmpty() && SelectedEnvironment != null);
}
public override void OnApplicationStarted()
{
}
public override void OnBeforeNavigatedTo()
{
base.OnBeforeNavigatedTo();
SelectedView = LoginViews.Login;
}
public override void OnNavigatedTo()
{
base.OnNavigatedTo();
SelectedEnvironment = GatewayService.Environments.FirstOrDefault(x => x.MachineServiceAddress == Settings.MachineServiceAddress);
if (SelectedEnvironment == null)
{
SelectedEnvironment = GatewayService.Environments.FirstOrDefault();
}
Email = Settings.LastLoginEmail;
if (Settings.LastLoginPassword.IsNotNullOrEmpty())
{
Password = _cryptography.Decrypt(Settings.LastLoginPassword);
}
RememberMe = Settings.RememberMe;
if (!Email.IsNotNullOrEmpty())
{
this.SetFocus(() => Email);
}
else if (!Password.IsNotNullOrEmpty())
{
this.SetFocus(() => Password);
}
}
private async void Login()
{
try
{
if (!Validate())
{
return;
}
IsFree = false;
SelectedView = LoginViews.Logging;
var result = await AuthenticationProvider.Login(Email, Password, SelectedEnvironment, (status) => Status = status);
SaveCredentials();
Status = "Starting application...";
if (Settings.WindowMaximizedOnStartup && ApplicationManager.WindowState != System.Windows.WindowState.Maximized)
{
ApplicationManager.WindowState = System.Windows.WindowState.Maximized;
}
await Task.Delay(500);
if (!result.Response.PasswordChangeRequired)
{
await NavigationManager.NavigateTo(NavigationView.Home);
}
}
catch (Exception ex)
{
LogManager.Log(ex, "FSE logging error.");
IsFree = true;
SelectedView = LoginViews.Login;
await NotificationProvider.ShowError(GetErrorMessage(ex));
}
finally
{
IsFree = true;
}
}
private void SaveCredentials()
{
Settings.LastLoginEmail = Email;
Settings.RememberMe = RememberMe;
if (RememberMe)
{
Settings.LastLoginPassword = _cryptography.Encrypt(Password);
}
else
{
Settings.LastLoginPassword = null;
}
Settings.Save();
}
private String GetErrorMessage(Exception ex)
{
var fullError = ex.FlattenMessage();
if (fullError.Contains("Invalid column"))
{
return "There is a mismatch of data schema between your version of Tango FSE and the remote service.\nPlease check the following:\n\u2022 The remote environment supports this application version.\n\u2022 Try to update your version to the latest.";
}
else
{
return fullError;
}
}
public void OnNavigatedToWithObject(NavigationObject obj)
{
if (obj.IsLoggingOut)
{
Password = null;
RememberMe = false;
SaveCredentials();
}
}
}
}
|
