Core update. Base core features are done (main app doesn't compile)
Related Work Items: #416, #422, #423, #424
This commit is contained in:
Michael Gordeev
@@ -0,0 +1,232 @@
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using Google.Apis.Auth.OAuth2;
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using Google.Apis.Oauth2.v2;
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using System;
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using System.Threading.Tasks;
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using Windows.Security.Authentication.Web;
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using YouTube.Authorization;
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using Windows.Security.Credentials;
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using FoxTube.Models;
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using YouTube;
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using System.Threading;
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using Google.Apis.YouTube.v3;
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using Windows.UI.Xaml.Controls;
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using FoxTube.Utils;
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using YoutubeExplode;
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using System.Linq;
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using Newtonsoft.Json;
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using Google.Apis.Oauth2.v2.Data;
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namespace FoxTube.Services
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{
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public static class UserService
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{
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public const string UsersStorageKey = "UserService.Users";
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public const string LastUserInfoKey = "UserService.LastUser";
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public const int MaxUsersCount = 1;
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#region Private members
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private static readonly ExtendedYouTubeService _defaultService = new ExtendedYouTubeService(new Google.Apis.Services.BaseClientService.Initializer
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{
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ApplicationName = "FoxTube",
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ApiKey = SecretConstants.YoutubeApiKey, // TODO: Replace with an actual API key
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});
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private static readonly YoutubeClient _defaultYtClient = new YoutubeClient();
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private static string[] Scopes { get; } = new string[]
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{
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Oauth2Service.Scope.UserinfoProfile,
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Oauth2Service.Scope.UserinfoEmail,
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YouTubeService.Scope.YoutubeForceSsl
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};
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private static ClientSecrets[] ClientSecrets { get; } = SecretConstants.ClientSecrets;
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#endregion
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public static Userinfoplus[] Users { get; private set; } = new Userinfoplus[MaxUsersCount];
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public static bool IncognitoMode { get; set; } = false;
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public static bool CanAddAccounts => Users.Any(i => i == null);
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public static User CurrentUser { get; set; }
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public static bool Authorized => CurrentUser != null;
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public static ExtendedYouTubeService Service
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{
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get
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{
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if (IncognitoMode || CurrentUser == null)
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return _defaultService;
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else
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return CurrentUser.Service;
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}
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}
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public static YoutubeClient YouTubeClient
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{
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get
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{
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if (IncognitoMode || CurrentUser == null)
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return _defaultYtClient;
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else
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return CurrentUser.Client;
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}
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}
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public static event EventHandler<bool> UserStateUpdated;
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public static event EventHandler<Subscription> SubscriptionsChanged;
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static UserService() =>
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Initialize();
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public static async Task<bool> AddUser()
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{
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int queueIndex = Users.ToList().FindIndex(i => i == null);
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if (queueIndex < 0)
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throw new StackOverflowException("The maximum accounts limit is reached");
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ClientSecrets secrets = ClientSecrets[queueIndex];
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Uri requestString = AuthorizationHelpers.FormQueryString(secrets, Scopes);
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WebAuthenticationResult result = await WebAuthenticationBroker.AuthenticateAsync(WebAuthenticationOptions.UseTitle, requestString, AuthorizationHelpers.Endpoint);
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switch (result.ResponseStatus)
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{
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case WebAuthenticationStatus.Success:
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string successCode = AuthorizationHelpers.ParseSuccessCode(result.ResponseData);
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YouTube.Authorization.UserCredential credential = await AuthorizationHelpers.ExchangeToken(secrets, successCode);
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await LoadUser(credential, queueIndex);
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return true;
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case WebAuthenticationStatus.UserCancel:
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break;
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case WebAuthenticationStatus.ErrorHttp:
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await new ContentDialog
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{
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Title = "Something went wrong...",
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Content = "It may be a bug or temporary server issues. Please, try again later"
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}.ShowAsync();
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Metrics.SendReport(new Exception("Authorization failed (HTTP Error)"), null,
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("Response status", result.ResponseStatus.ToString()),
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("Response data", result.ResponseData),
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("Error details", result.ResponseErrorDetail.ToString()));
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break;
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}
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return false;
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}
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public static async void Initialize()
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{
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Users = JsonConvert.DeserializeObject<Userinfoplus[]>(Storage.Registry.Values[UsersStorageKey] as string ?? "") ?? new Userinfoplus[MaxUsersCount];
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int? lastUserIndex = Storage.Registry.Values[LastUserInfoKey] as int?;
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if (lastUserIndex.HasValue && Users[lastUserIndex.Value] != null ||
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(lastUserIndex = Users.ToList().FindIndex(i => i != null)) > -1)
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await SwitchUser(lastUserIndex.Value);
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}
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public static async Task<bool> Logout()
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{
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if (CurrentUser?.UserInfo?.Id == null)
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return false;
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try
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{
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string userId = CurrentUser.UserInfo.Id;
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PasswordVault passwordVault = new PasswordVault();
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try
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{
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PasswordCredential credential = passwordVault.Retrieve("foxtube", userId);
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passwordVault.Remove(credential);
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}
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catch { }
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await CurrentUser.Credential.RevokeTokenAsync(CancellationToken.None);
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Storage.Registry.Values.Remove($"Subscriptions.{CurrentUser.UserInfo.Id}");
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CurrentUser = null;
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Users[Users.ToList().FindIndex(i => i.Id == userId)] = null;
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Storage.Registry.Values[UsersStorageKey] = JsonConvert.SerializeObject(Users);
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Storage.Registry.Values[LastUserInfoKey] = null;
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if (Users.Any(i => i != null))
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await SwitchUser(Users.ToList().FindIndex(i => i != null));
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else
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UserStateUpdated?.Invoke(Users, false);
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return true;
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}
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catch (Exception e)
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{
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Metrics.SendReport(new Exception("Failed to logout", e));
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await new ContentDialog
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{
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Title = "Something went wrong...",
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Content = "It may be a bug or temporary server issues. Please, try again later"
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}.ShowAsync();
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return false;
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}
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}
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public static async Task<bool> SwitchUser(int userIndex)
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{
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Userinfoplus userInfo = Users[userIndex];
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PasswordVault valut = new PasswordVault();
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try
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{
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PasswordCredential vaultCredential = valut.Retrieve("foxtube", userInfo.Id);
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vaultCredential.RetrievePassword();
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string token = vaultCredential.Password;
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YouTube.Authorization.UserCredential credential = await AuthorizationHelpers.RestoreUser(ClientSecrets[userIndex], token);
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await LoadUser(credential, userIndex);
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return true;
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}
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catch
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{
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return false;
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}
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}
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private static async Task LoadUser(YouTube.Authorization.UserCredential credential, int userIndex)
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{
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CurrentUser = await User.GetUser(credential);
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Users[userIndex] = CurrentUser.UserInfo;
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Storage.Registry.Values[UsersStorageKey] = JsonConvert.SerializeObject(Users);
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Storage.Registry.Values[LastUserInfoKey] = userIndex;
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credential.RefreshTokenUpdated += (s, e) => UpdateToken(CurrentUser.UserInfo.Id, credential.Token.RefreshToken);
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UpdateToken(CurrentUser.UserInfo.Id, credential.Token.RefreshToken);
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UserStateUpdated?.Invoke(Users, true);
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}
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private static void UpdateToken(string id, string refreshToken)
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{
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PasswordVault passwordVault = new PasswordVault();
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try
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{
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PasswordCredential vaultCredential = passwordVault.Retrieve("foxtube", id);
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vaultCredential.Password = refreshToken;
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}
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catch
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{
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PasswordCredential vaultCredential = new PasswordCredential("foxtube", CurrentUser.UserInfo.Id, refreshToken);
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passwordVault.Add(vaultCredential);
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}
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}
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internal static void SubscriptionsChangedInvoker(User sender, Subscription subscription) =>
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SubscriptionsChanged?.Invoke(sender, subscription);
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}
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}
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