GoogleWebAuthorizationBroker.AuthorizeAsync Hangs

Question

Наш сайт должен загружать видео на youtube из кода (приложение asp.net mvc). Я пытаюсь получить учетные данные google, но когда я вызываю AuthorizeAsync, приложение просто зависает. Я все рассмотрел для решения, и никто, похоже, не помогает. Я уже искал очевидное на google и переполнение стека. большинство из того, что я нашел, упоминал, что приложение, возможно, не имеет доступа к папке appdata, поэтому я попытался сменить папку на диске c, d-диске и в фактическом местоположении inetpub. Я тестировал и обнаружил, что смог написать приложение в этих местах.

Чтобы быть более конкретным, пользователь является нашим администратором, клиенты загружают видео нам, и администратор одобряет их. когда администратор одобряет их, он публикуется на нашей учетной записи YouTube. администратору не нужно ничего делать, кроме кнопки подтверждения.

Чтобы сделать этот вопрос актуальным, что я могу сделать, чтобы пройти мимо AuthorizeAsync? Дайте мне знать, если вам нужно больше информации

 UserCredential credential; 
     GoogleWebAuthorizationBroker.Folder = "YouTube.Auth.Store"; 
     using (var stream = new FileStream(CredentialsPath, FileMode.Open, 
          FileAccess.Read)) 
     { 
      credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
       GoogleClientSecrets.Load(stream).Secrets, 
       // This OAuth 2.0 access scope allows an application to upload files to the 
       // authenticated user's YouTube channel, but doesn't allow other types of access. 
       new[] { YouTubeService.Scope.YoutubeUpload }, 
       "user", 
       CancellationToken.None, 
       new FileDataStore("YouTube.Auth.Store") 
      ).Result; 
     } 

Answer 1

Найден способ получить это.

Вместо этого я использовал GoogleAuthorizationCodeFlow. это то, что оказалось выглядеть следующим образом:

 ClientSecrets secrets = new ClientSecrets() 
     { 
      ClientId = CLIENT_ID, 
      ClientSecret = CLIENT_SECRET 
     }; 

     var token = new TokenResponse { RefreshToken = REFRESH_TOKEN }; 
     var credentials = new UserCredential(new GoogleAuthorizationCodeFlow(
      new GoogleAuthorizationCodeFlow.Initializer 
      { 
       ClientSecrets = secrets 
      }), 
      "user", 
      token); 

     var service = new YouTubeService(new BaseClientService.Initializer() 
     { 
      HttpClientInitializer = credentials, 
      ApplicationName = "TestProject" 
     }); 

Answer 2

Следующий код позволяет использовать учетные данные API для Google Диска, чтобы запросить регистрационную информацию от пользователя, и загрузить файл на сервер для выполнения какой-то запрос:

Option Strict On 
Option Explicit On 
Imports System.Net 
Imports System.IO 
Imports System.Linq 
Imports System.Threading 
Imports System.Web 
Imports System.Web.UI.WebControls 
Imports Google 
Imports Google.Apis.Auth.OAuth2 
Imports Google.Apis.Auth.OAuth2.Flows 
Imports Google.Apis.Auth.OAuth2.Web 
Imports Google.Apis.Services 

'for drive 
Imports Google.Apis.Drive.v2 
Imports Google.Apis.Drive.v2.Data 
Imports Google.Apis.Util.Store 
'for AuthorizationCodeRequestUrl 
Imports Google.Apis.Auth.OAuth2.Requests 
Imports System.Drawing 

Public Class _Default 
    Inherits Page 

    Private redirect_uri As String = "" 
    Private client_id As String = "" 
    Private client_secret As String = "" 
    Private service As DriveService 

    'Application logic should manage users authentication. 
    'This sample works with only one user. You can change it by retrieving 
    'data from the session. 
    'You use the word user because you are authorized by the user to access 
    'their drive contents. 
Private UserId As String = "user" 

Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load 

    Dim SCOPES As String() = New [String]() {"https://www.googleapis.com/auth/drive", "https://www.googleapis.com/auth/userinfo.email", "https://www.googleapis.com/auth/userinfo.profile", "https://www.googleapis.com/auth/drive.install"} 
    Dim flow As GoogleAuthorizationCodeFlow 
    'use extended class to create google authorization code flow 
    'use custom own datastore 
    flow = New ForceOfflineGoogleAuthorizationCodeFlow(New GoogleAuthorizationCodeFlow.Initializer() With { 
    .DataStore = New FileDataStore("D:\inetpub\wwwroot\go\filedatastore", True), 
    .ClientSecrets = New ClientSecrets() With { 
     .ClientId = client_id, 
     .ClientSecret = client_secret 
    }, 
    .Scopes = SCOPES 
}) 

    Dim uri = Request.Url.ToString() 
    Dim redirecturi As String = redirect_uri 
    Dim code = Request("code") 
    If code IsNot Nothing Then 
     output.Text &= "<br />Code: " & code & "<br />" 
     output.Text &= "<br />UserID: " & UserId & "<br />" 
     output.Text &= "<br />URI: " & uri & "<br />" 
     output.Text &= "<br />RedirectURI: " & redirecturi & "<br />" 
     output.Text &= "<br />uri-substring-thing: " & uri.Substring(0, uri.IndexOf("?")) & "<br />" 
     Dim token = flow.ExchangeCodeForTokenAsync(UserId, code, redirecturi, CancellationToken.None).Result 

     ' Extract the right state. 
     Dim oauthState = AuthWebUtility.ExtracRedirectFromState(flow.DataStore, UserId, Request("state")).Result 
     Response.Redirect(oauthState) 
    Else 

     Dim result = New AuthorizationCodeWebApp(flow, redirecturi, uri).AuthorizeAsync(UserId, CancellationToken.None).Result 

     If result.RedirectUri IsNot Nothing Then 
      ' Redirect the user to the authorization server. 
      Response.Redirect(result.RedirectUri) 
     Else 
      ' The data store contains the user credential, so the user has been already authenticated. 


      service = New DriveService(New BaseClientService.Initializer() With { 
      .HttpClientInitializer = result.Credential, 
      .ApplicationName = "Drive API Sample" 
     }) 
     End If 
    End If 

End Sub 

''' <summary> 
''' Download a file 
''' Documentation: https://developers.google.com/drive/v2/reference/files/get 
''' </summary> 
''' <param name="_service">a Valid authenticated DriveService</param> 
''' <param name="_fileResource">File resource of the file to download</param> 
''' <param name="_saveTo">location of where to save the file including the file name to save it as.</param> 
''' <returns></returns> 
Public Shared Function downloadFile(_service As DriveService, _fileResource As Data.File, _saveTo As String) As [Boolean] 

    If Not [String].IsNullOrEmpty(_fileResource.DownloadUrl) Then 
     Try 
      Dim x = _service.HttpClient.GetByteArrayAsync(_fileResource.DownloadUrl) 
      Dim arrBytes As Byte() = x.Result 
      System.IO.File.WriteAllBytes(_saveTo, arrBytes) 
      Return True 
     Catch e As Exception 
      Console.WriteLine("An error occurred: " + e.Message) 
      Return False 
     End Try 
    Else 
     ' The file doesn't have any content stored on Drive. 
     Return False 
    End If 
End Function 

Public Async Function GetFile(IncomingFileID As String) As Tasks.Task 
    Try 
     Dim request As FilesResource.GetRequest = service.Files.Get(IncomingFileID) 
     Dim response As Data.File = Await request.ExecuteAsync(CancellationToken.None) 
     downloadFile(service, response, "D:/inetpub/wwwroot/go/" & Guid.NewGuid.ToString) 

    Catch ex As Exception 
     Dim str As String = "<br />" & ex.ToString() 
     str = str.Replace(Environment.NewLine, Environment.NewLine + "<br/>") 
     str = str.Replace(" ", " &nbsp;") 
     output.Text &= String.Format("<font color=""red"">{0}</font>", str) 
    End Try 
End Function 


'''<summary>Gets the File Lists of the user.</summary> 
Public Async Function FetchFilelists() As System.Threading.Tasks.Task 
    Try 
     ' Get all files of the user asynchronously. 
     Dim request As FilesResource.ListRequest = service.Files.List() 

     'get only my files 
     request.Q = "mimeType contains 'image/'" 

     Dim response As FileList = Await request.ExecuteAsync() 

     ShowFilelists(response) 
    Catch ex As Exception 
     Dim str = ex.ToString() 
     str = str.Replace(Environment.NewLine, Environment.NewLine + "<br/>") 
     str = str.Replace(" ", " &nbsp;") 
     output.Text = String.Format("<font color=""red"">{0}</font>", str) 
    End Try 
End Function 

Private Sub ShowFilelists(response As FileList) 
    If response.Items Is Nothing Then 
     output.Text &= "You have no files!<br/>" 
     Return 
    End If 

    output.Text &= "Showing files...<br/>" 
    Dim ctr As Integer = 0 
    For Each file As Google.Apis.Drive.v2.Data.File In response.Items 
     ctr += 1 
     Dim listPanel As New Panel() With { 
      .BorderWidth = Unit.Pixel(1), 
      .BorderColor = Color.Black 
     } 
     listPanel.Controls.Add(New Label() With { 
      .Text = file.Title + "--" + file.MimeType 
       }) 
     listPanel.Controls.Add(New Label() With { 
      .Text = "<hr/>" 
      }) 


     If file.MimeType.ToString().Contains("folder") = False Then 
      listPanel.Controls.Add(New HyperLink() With { 
      .Text = "Download", 
      .NavigateUrl = file.WebContentLink 
     }) 

      listPanel.Controls.Add(New Button() With { 
            .Text = "Use This Image", .OnClientClick = "document.getElementById('currentImageId').value = '" & file.Id & "';return false;"}) 

     End If 
     lists.Controls.Add(listPanel) 
    Next 

    output.Text &= "Total Files: " & ctr.ToString 
End Sub 



Protected Async Sub listButton_Click(sender As Object, e As EventArgs) Handles listbutton.Click 
    Await FetchFilelists() 
End Sub 

Protected Async Sub DownloadImageButton_Click(sender As Object, e As EventArgs) Handles DownloadImageButton.Click 
    Dim idToUse As String = Page.Request.Form(currentImageId.UniqueID) 

    output.Text &= "<br />Attempting to download id: " & idToUse & "<br />" 
    Await GetFile(idToUse) 
    output.Text &= "<br />Download Completed<br />" 
End Sub 

'overwrite. force offline. 
Friend Class ForceOfflineGoogleAuthorizationCodeFlow 
    Inherits GoogleAuthorizationCodeFlow 
    'source: //gotoanswer.stanford.edu/google_analytics_oauth_with_accesstype__offline_in_c-4478263/ 

    Public Sub New(initializer As GoogleAuthorizationCodeFlow.Initializer) 
     MyBase.New(initializer) 
    End Sub 

    Public Overrides Function CreateAuthorizationCodeRequest(redirectUri As String) As AuthorizationCodeRequestUrl 
     Dim ss = New Google.Apis.Auth.OAuth2.Requests.GoogleAuthorizationCodeRequestUrl(New Uri(AuthorizationServerUrl)) 
     ss.AccessType = "offline" 
     ss.ApprovalPrompt = "force" 
     ss.ClientId = ClientSecrets.ClientId 
     ss.Scope = String.Join(" ", Scopes) 
     ss.RedirectUri = redirectUri 
     Return ss 
    End Function 
End Class 


End Class 

Вот страница WebForm .aspx:

<%@ Page Title="Home Page" Language="VB" MasterPageFile="~/Site.Master" 
AutoEventWireup="true" CodeBehind="Default.aspx.vb"  Inherits="PictureMyCard._Default" Async="True" %> 

<asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" 
runat="server"> 


<div> 
    <asp:Button ID="listbutton" runat="server" ClientIDMode="Static" Text="list" /> 
<asp:Label id="output" runat="server" ClientIDMode="Static" Text="..." ></asp:Label> 
</div> 
    <asp:Label ID="lists" ClientIDMode="Static" Text="..." runat="server"></asp:Label> 
<hr /> 

<asp:HiddenField ClientIDMode="Static" ID="currentImageId" runat="server" /> 

<asp:Button runat="server" ID="DownloadImageButton" ClientIDMode="Static" Text="Download Image to server" /> 
</asp:Content> 

Answer 3

можно сломать, если это, например, с помощью тайм-аут, потому что AuthorizeAsync метод ч как реализация CancellationToken.

• Создайте TokenSource, чтобы получить сам токен.
• Установить отмену источника TokenSource, т. Е. 20 секунд
• Извлечь токен, чтобы перейти к методу AuthorizeAsync.

---

public async void RunAsync() 
{ 
    UserCredential credential; 
    var stream = new FileStream("client_secrets.json", FileMode.Open, FileAccess.Read); 

    CancellationTokenSource cts = new CancellationTokenSource(); 
    cts.CancelAfter(TimeSpan.FromSeconds(20)); 
    CancellationToken ct = cts.Token; 

    credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
    GoogleClientSecrets.Load(stream).Secrets, 
    new[] { YouTubeService.Scope.YoutubeUpload }, 
    "user", 
    ct 
    ); 

    if (ct.IsCancellationRequested) return; 

    // do more stuff when came back authorized. 
} 

Теперь, после 20 секунд, когда AuthorizeAsync был не завершена, вызывающий этот метод RunAsync получит исключение.

try 
{ 
    await RunAsync(); 
} 
catch(Exception) 
{ 
    // "Timeout" of the RunAsync(); 
}