From bf4f0bdba03b853af3148511c1fadab4cc20bf04 Mon Sep 17 00:00:00 2001
From: Kyle Spearrin <kyle.spearrin@gmail.com>
Date: Mon, 27 May 2019 11:57:10 -0400
Subject: [PATCH] two-factor page UI

---
 src/App/Pages/Accounts/LoginPageViewModel.cs  |  3 +-
 src/App/Pages/Accounts/TwoFactorPage.xaml     | 92 ++++++++++++++++++-
 src/App/Pages/Accounts/TwoFactorPage.xaml.cs  |  6 +-
 .../Pages/Accounts/TwoFactorPageViewModel.cs  | 39 +++++++-
 4 files changed, 131 insertions(+), 9 deletions(-)

diff --git a/src/App/Pages/Accounts/LoginPageViewModel.cs b/src/App/Pages/Accounts/LoginPageViewModel.cs
index 34c58541c..7025cb26c 100644
--- a/src/App/Pages/Accounts/LoginPageViewModel.cs
+++ b/src/App/Pages/Accounts/LoginPageViewModel.cs
@@ -100,7 +100,8 @@ namespace Bit.App.Pages
                 }
                 if(response.TwoFactor)
                 {
-                    // TODO: 2fa page
+                    var page = new TwoFactorPage();
+                    await Page.Navigation.PushModalAsync(new NavigationPage(page));
                 }
                 else
                 {
diff --git a/src/App/Pages/Accounts/TwoFactorPage.xaml b/src/App/Pages/Accounts/TwoFactorPage.xaml
index e9b5cd6e0..76526237e 100644
--- a/src/App/Pages/Accounts/TwoFactorPage.xaml
+++ b/src/App/Pages/Accounts/TwoFactorPage.xaml
@@ -16,15 +16,103 @@
     <ContentPage.Resources>
         <ResourceDictionary>
             <u:InverseBoolConverter x:Key="inverseBool" />
+            <u:IsNullConverter x:Key="isNull" />
         </ResourceDictionary>
     </ContentPage.Resources>
 
     <ContentPage.ToolbarItems>
-        <ToolbarItem Text="{u:I18n Continue}" Clicked="Continue_Clicked" />
+        <ToolbarItem Text="{u:I18n Continue}" Clicked="Continue_Clicked" x:Name="_continueItem" />
     </ContentPage.ToolbarItems>
 
     <ScrollView>
-
+        <StackLayout Spacing="0" Padding="0">
+            <StackLayout Spacing="0" Padding="0" IsVisible="{Binding TotpMethod, Mode=OneWay}">
+                <Label
+                    Text="{Binding TotpInstruction, Mode=OneWay}"
+                    Margin="20, 0"
+                    HorizontalTextAlignment="Center" />
+                <StackLayout StyleClass="box">
+                    <StackLayout StyleClass="box-row, box-row-input">
+                        <Label
+                            Text="{u:I18n VerificationCode}"
+                            StyleClass="box-label" />
+                        <Entry
+                            Text="{Binding Token}"
+                            Keyboard="Numeric"
+                            StyleClass="box-value" />
+                    </StackLayout>
+                    <StackLayout StyleClass="box-row, box-row-switch">
+                        <Label
+                            Text="{u:I18n RememberMe}"
+                            StyleClass="box-label, box-label-regular"
+                            HorizontalOptions="StartAndExpand" />
+                        <Switch
+                            IsToggled="{Binding Remember}"
+                            StyleClass="box-value"
+                            HorizontalOptions="End" />
+                    </StackLayout>
+                </StackLayout>
+            </StackLayout>
+            <StackLayout Spacing="0" Padding="0" IsVisible="{Binding YubikeyMethod, Mode=OneWay}">
+                <Label
+                    Text="{Binding YubikeyInstruction, Mode=OneWay}"
+                    Margin="20, 0"
+                    HorizontalTextAlignment="Center" />
+                <Image
+                    Source="yubikey.png"
+                    Margin="20, 0"
+                    WidthRequest="266"
+                    HeightRequest="160"
+                    HorizontalOptions="Center" />
+                <StackLayout StyleClass="box">
+                    <StackLayout StyleClass="box-row, box-row-input">
+                        <Entry
+                            Text="{Binding Token}"
+                            StyleClass="box-value" />
+                    </StackLayout>
+                    <StackLayout StyleClass="box-row, box-row-switch">
+                        <Label
+                            Text="{u:I18n RememberMe}"
+                            StyleClass="box-label, box-label-regular"
+                            HorizontalOptions="StartAndExpand" />
+                        <Switch
+                            IsToggled="{Binding Remember}"
+                            StyleClass="box-value"
+                            HorizontalOptions="End" />
+                    </StackLayout>
+                </StackLayout>
+            </StackLayout>
+            <StackLayout Spacing="0" Padding="0" IsVisible="{Binding DuoMethod, Mode=OneWay}">
+                <controls:HybridWebView
+                    x:Name="_duoWebView"
+                    HorizontalOptions="FillAndExpand"
+                    VerticalOptions="FillAndExpand"
+                    MinimumHeightRequest="400" />
+                <StackLayout StyleClass="box">
+                    <StackLayout StyleClass="box-row, box-row-switch">
+                        <Label
+                            Text="{u:I18n RememberMe}"
+                            StyleClass="box-label, box-label-regular"
+                            HorizontalOptions="StartAndExpand" />
+                        <Switch
+                            IsToggled="{Binding Remember}"
+                            StyleClass="box-value"
+                            HorizontalOptions="End" />
+                    </StackLayout>
+                </StackLayout>
+            </StackLayout>
+            <StackLayout
+                Spacing="0"
+                Padding="0"
+                IsVisible="{Binding SelectedProviderType, Mode=OneWay, Converter={StaticResource isNull}}">
+                <Label
+                    Text="{u:I18n NoTwoStepAvailable}"
+                    Margin="20, 0"
+                    HorizontalTextAlignment="Center" />
+            </StackLayout>
+            <Button Text="{u:I18n UseAnotherTwoStepMethod}"
+                    Clicked="Methods_Clicked"></Button>
+        </StackLayout>
     </ScrollView>
 
 </pages:BaseContentPage>
diff --git a/src/App/Pages/Accounts/TwoFactorPage.xaml.cs b/src/App/Pages/Accounts/TwoFactorPage.xaml.cs
index ba2a82d1c..c37ef6592 100644
--- a/src/App/Pages/Accounts/TwoFactorPage.xaml.cs
+++ b/src/App/Pages/Accounts/TwoFactorPage.xaml.cs
@@ -1,4 +1,5 @@
-using System;
+using Bit.App.Controls;
+using System;
 
 namespace Bit.App.Pages
 {
@@ -11,8 +12,11 @@ namespace Bit.App.Pages
             InitializeComponent();
             _vm = BindingContext as TwoFactorPageViewModel;
             _vm.Page = this;
+            DuoWebView = _duoWebView;
         }
 
+        public HybridWebView DuoWebView { get; set; }
+
         protected override void OnAppearing()
         {
             base.OnAppearing();
diff --git a/src/App/Pages/Accounts/TwoFactorPageViewModel.cs b/src/App/Pages/Accounts/TwoFactorPageViewModel.cs
index 14497d4a2..dfda85041 100644
--- a/src/App/Pages/Accounts/TwoFactorPageViewModel.cs
+++ b/src/App/Pages/Accounts/TwoFactorPageViewModel.cs
@@ -6,6 +6,7 @@ using Bit.Core.Exceptions;
 using Bit.Core.Models.Request;
 using Bit.Core.Utilities;
 using System.Linq;
+using System.Net;
 using System.Threading.Tasks;
 using Xamarin.Forms;
 
@@ -19,10 +20,12 @@ namespace Bit.App.Pages
         private readonly IStorageService _storageService;
         private readonly IApiService _apiService;
         private readonly IPlatformUtilsService _platformUtilsService;
+        private readonly IEnvironmentService _environmentService;
 
         private bool _u2fSupported = false;
         private TwoFactorProviderType? _selectedProviderType;
         private string _twoFactorEmail;
+        private string _webVaultUrl = "https://vault.bitwarden.com";
 
         public TwoFactorPageViewModel()
         {
@@ -32,6 +35,7 @@ namespace Bit.App.Pages
             _storageService = ServiceContainer.Resolve<IStorageService>("storageService");
             _apiService = ServiceContainer.Resolve<IApiService>("apiService");
             _platformUtilsService = ServiceContainer.Resolve<IPlatformUtilsService>("platformUtilsService");
+            _environmentService = ServiceContainer.Resolve<IEnvironmentService>("environmentService");
         }
 
         public string TwoFactorEmail
@@ -52,6 +56,14 @@ namespace Bit.App.Pages
 
         public bool EmailMethod => SelectedProviderType == TwoFactorProviderType.Email;
 
+        public bool TotpMethod => AuthenticatorMethod || EmailMethod;
+
+        public string TotpInstruction => AuthenticatorMethod ? AppResources.EnterVerificationCodeApp :
+            AppResources.EnterVerificationCodeEmail;
+
+        public string YubikeyInstruction => Device.RuntimePlatform == Device.iOS ? AppResources.YubiKeyInstructionIos :
+            AppResources.YubiKeyInstruction;
+
         public TwoFactorProviderType? SelectedProviderType
         {
             get => _selectedProviderType;
@@ -60,7 +72,9 @@ namespace Bit.App.Pages
                 nameof(EmailMethod),
                 nameof(DuoMethod),
                 nameof(YubikeyMethod),
-                nameof(AuthenticatorMethod)
+                nameof(AuthenticatorMethod),
+                nameof(TotpMethod),
+                nameof(TotpInstruction)
             });
         }
 
@@ -74,10 +88,19 @@ namespace Bit.App.Pages
                 return;
             }
 
+            if(!string.IsNullOrWhiteSpace(_environmentService.BaseUrl))
+            {
+                _webVaultUrl = _environmentService.BaseUrl;
+            }
+            else if(!string.IsNullOrWhiteSpace(_environmentService.WebVaultUrl))
+            {
+                _webVaultUrl = _environmentService.WebVaultUrl;
+            }
+
             // TODO: init U2F
             _u2fSupported = false;
 
-            var selectedProviderType = _authService.GetDefaultTwoFactorProvider(_u2fSupported);
+            SelectedProviderType = _authService.GetDefaultTwoFactorProvider(_u2fSupported);
             Load();
         }
 
@@ -97,9 +120,15 @@ namespace Bit.App.Pages
                     break;
                 case TwoFactorProviderType.Duo:
                 case TwoFactorProviderType.OrganizationDuo:
-                    // TODO: init duo
-                    var host = providerData["Host"] as string;
-                    var signature = providerData["Signature"] as string;
+                    var host = WebUtility.UrlEncode(providerData["Host"] as string);
+                    var req = WebUtility.UrlEncode(providerData["Signature"] as string);
+                    var page = Page as TwoFactorPage;
+                    page.DuoWebView.Uri = $"{_webVaultUrl}/duo-connector.html?host={host}&request={req}";
+                    page.DuoWebView.RegisterAction(async sig =>
+                    {
+                        Token = sig;
+                        await SubmitAsync();
+                    });
                     break;
                 case TwoFactorProviderType.Email:
                     TwoFactorEmail = providerData["Email"] as string;