Added user authorization (not tested)

FoxTube.Core/FoxTube.Core.csproj

@@ -136,6 +136,7 @@
     <Compile Include="Helpers\Metrics.cs" />
     <Compile Include="Helpers\Settings.cs" />
     <Compile Include="Helpers\StoreInterop.cs" />
+    <Compile Include="Helpers\UserControl.cs" />
     <Compile Include="Helpers\Utils.cs" />
     <Compile Include="Models\Inbox\Changelog.cs" />
     <Compile Include="Models\Inbox\DeveloperMessage.cs" />
@@ -144,6 +145,7 @@
     <Compile Include="Models\Notifications.cs" />
     <Compile Include="Models\PageView.cs" />
     <Compile Include="Models\SearchSuggestion.cs" />
+    <Compile Include="Models\User.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <EmbeddedResource Include="Properties\FoxTube.Core.rd.xml" />
   </ItemGroup>
@@ -151,6 +153,15 @@
     <PackageReference Include="AngleSharp">
       <Version>0.13.0</Version>
     </PackageReference>
+    <PackageReference Include="Google.Apis.Auth">
+      <Version>1.42.0</Version>
+    </PackageReference>
+    <PackageReference Include="Google.Apis.Oauth2.v2">
+      <Version>1.42.0.1602</Version>
+    </PackageReference>
+    <PackageReference Include="Google.Apis.YouTube.v3">
+      <Version>1.42.0.1758</Version>
+    </PackageReference>
     <PackageReference Include="Microsoft.AppCenter.Analytics">
       <Version>2.6.1</Version>
     </PackageReference>
@@ -175,6 +186,11 @@
       <Name>Visual C++ 2015 Runtime for Universal Windows Platform Apps</Name>
     </SDKReference>
   </ItemGroup>
+  <ItemGroup>
+    <Reference Include="YouTube.API">
+      <HintPath>..\Src\YouTube.API.dll</HintPath>
+    </Reference>
+  </ItemGroup>
   <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '14.0' ">
     <VisualStudioVersion>14.0</VisualStudioVersion>
   </PropertyGroup>

FoxTube.Core/Helpers/UserControl.cs

@@ -0,0 +1,73 @@
+using Google.Apis.Auth.OAuth2;
+using Google.Apis.Oauth2.v2;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Windows.Security.Authentication.Web;
+using YouTube.Authorization;
+using YouTube;
+using System.Text.RegularExpressions;
+using Windows.Security.Credentials;
+using FoxTube.Core.Models;
+using System.Threading;
+using Google.Apis.YouTube.v3;
+
+namespace FoxTube
+{
+    public static class UserControl
+    {
+        static string[] Scopes { get; } = new string[]
+        {
+            Oauth2Service.Scope.UserinfoProfile,
+            Oauth2Service.Scope.UserinfoEmail,
+            YouTubeService.Scope.YoutubeForceSsl
+        };
+
+        static ClientSecrets ClientSecrets { get; } = new ClientSecrets
+        {
+            ClientId = "1096685398208-u95rcpkqb4e1ijfmb8jdq3jsg37l8igv.apps.googleusercontent.com",
+            ClientSecret = "IU5bbdjwvmx8ttJoXQ7e6JWd"
+        };
+
+        public static User CurrentUser { get; set; }
+        public static bool Authorized => CurrentUser != null;
+
+        public static async Task<bool> AddUser()
+        {
+            Uri callbackUri = WebAuthenticationBroker.GetCurrentApplicationCallbackUri();
+            Uri requestString = AuthorizationHelpers.FormQueryString(ClientSecrets, callbackUri, Scopes);
+
+            WebAuthenticationResult result = await WebAuthenticationBroker.AuthenticateAsync(WebAuthenticationOptions.UseTitle, requestString, AuthorizationHelpers.Endpoint);
+            switch(result.ResponseStatus)
+            {
+                case WebAuthenticationStatus.Success:
+                    UserCredential credential = await AuthorizationHelpers.ExchangeToken(ClientSecrets, new Regex(@"(?<=code=).?\w+").Match(result.ResponseData).Value);   // TODO: Add credential assignment
+                    CurrentUser = new User(credential);
+                    return true;
+                case WebAuthenticationStatus.UserCancel:
+                    break;
+                case WebAuthenticationStatus.ErrorHttp:
+                    Metrics.AddEvent("Authorization failed (HTTP Error)", ("Response data", result.ResponseData), ("Error details", result.ResponseErrorDetail.ToString()));
+                    break;
+            }
+            return false;
+        }
+
+        public static async Task Initialize()
+        {
+            PasswordVault passwordVault = new PasswordVault();
+            List<PasswordCredential> credentials = passwordVault.FindAllByResource("foxtube").ToList();
+
+            if (credentials.Count == 0)
+                return;
+
+            credentials[0].RetrievePassword();
+            UserCredential credential = await AuthorizationHelpers.RestoreUser(ClientSecrets, credentials[0].Password);
+            CurrentUser = new User(credential);
+        }
+
+        public static async Task Logout() =>
+            await CurrentUser.Credential.RevokeTokenAsync(CancellationToken.None);
+    }
+}

FoxTube.Core/Models/User.cs

@@ -0,0 +1,24 @@
+using Google.Apis.Auth.OAuth2;
+using Google.Apis.YouTube.v3.Data;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FoxTube.Core.Models
+{
+    public class User
+    {
+        public string Name { get; set; }
+        public string Email { get; set; }
+        internal string RefreshToken { get; set; }
+        public UserCredential Credential { get; set; }
+        public Channel Channel { get; set; }
+
+        public User(UserCredential credential)
+        {
+
+        }
+    }
+}

FoxTube/App.xaml.cs

@@ -2,9 +2,7 @@
 using FoxTube.Core.Helpers;
 using Windows.ApplicationModel;
 using Windows.ApplicationModel.Activation;
-using Windows.UI;
 using Windows.UI.Popups;
-using Windows.UI.ViewManagement;
 using Windows.UI.Xaml;
 
 namespace FoxTube
@@ -21,6 +19,7 @@ namespace FoxTube
 
         protected override async void OnLaunched(LaunchActivatedEventArgs e)
         {
+            await UserControl.Initialize();
             await StoreInterop.UpdateStoreState();
             if (Settings.LastReviewedVersion != Metrics.CurrentVersion)
                 Inbox.PushChangelog();

FoxTube/Controls/AccountManager.xaml

@@ -15,25 +15,25 @@
     </AppBarButton.Icon>
     
     <AppBarButton.Flyout>
-        <Flyout>
+        <Flyout Opening="Flyout_Opening">
             <StackPanel Margin="-12" Width="300">
                 <Grid Height="60">
-                    <controls:ImageEx Stretch="UniformToFill" 
+                    <controls:ImageEx x:Name="banner" Stretch="UniformToFill" 
                                       PlaceholderSource="/Assets/DefaultChannelBanner.png"
                                       PlaceholderStretch="UniformToFill"/>
                     
                     <Grid Padding="10" ColumnSpacing="20">
                         <Grid.Background>
-                            <SolidColorBrush Color="Black" Opacity=".7"/>
+                            <AcrylicBrush TintColor="Black" TintOpacity=".2"/>
                         </Grid.Background>
                         <Grid.ColumnDefinitions>
                             <ColumnDefinition Width="Auto"/>
                             <ColumnDefinition/>
                         </Grid.ColumnDefinitions>
-                        <PersonPicture Height="40"/>
+                        <PersonPicture Height="40" x:Name="avatar"/>
                         <StackPanel Grid.Column="1">
-                            <TextBlock Text="Michael 'XFox' Gordeev"/>
+                            <TextBlock x:Name="name" Text="█████████"/>
-                            <TextBlock Text="michael.xfox@outlook.com"/>
+                            <TextBlock x:Name="email" Text="██████████████████"/>
                         </StackPanel>
                     </Grid>
                 </Grid>

FoxTube/Controls/AccountManager.xaml.cs

@@ -1,27 +1,27 @@
-using System;
+using Windows.UI.Xaml.Controls;
-using System.Collections.Generic;
+using Windows.UI.Xaml.Media.Imaging;
-using System.IO;
-using System.Linq;
-using System.Runtime.InteropServices.WindowsRuntime;
-using Windows.Foundation;
-using Windows.Foundation.Collections;
-using Windows.UI.Xaml;
-using Windows.UI.Xaml.Controls;
-using Windows.UI.Xaml.Controls.Primitives;
-using Windows.UI.Xaml.Data;
-using Windows.UI.Xaml.Input;
-using Windows.UI.Xaml.Media;
-using Windows.UI.Xaml.Navigation;
-
-// The User Control item template is documented at https://go.microsoft.com/fwlink/?LinkId=234236
 
 namespace FoxTube.Controls
 {
     public sealed partial class AccountManager : AppBarButton
     {
-        public AccountManager()
+        public AccountManager() =>
-        {
             InitializeComponent();
+
+        async void Flyout_Opening(object sender, object e)
+        {
+            if (UserControl.Authorized)
+                return;
+
+            (sender as Flyout).Hide();
+            
+            if(await UserControl.AddUser())
+            {
+                banner.Source = new BitmapImage(UserControl.CurrentUser.Channel.BrandingSettings.Image.BannerMobileLowImageUrl.ToUri()) { DecodePixelWidth = 300, DecodePixelHeight = 60 };
+                avatar.ProfilePicture = new BitmapImage(UserControl.CurrentUser.Channel.Snippet.Thumbnails.Default__.Url.ToUri()) { DecodePixelHeight = 40, DecodePixelWidth = 40 };
+                name.Text = UserControl.CurrentUser.Name;
+                email.Text = UserControl.CurrentUser.Email;
+            }
         }
     }
 }