如果浏览器关闭，GoogleWebAuthorizationBroker.AuthorizeAsync（）会挂起 [英] GoogleWebAuthorizationBroker.AuthorizeAsync() hangs if browser closed

问题描述

我正在编写一个可将其输出复制到用户Google Drive的C＃桌面应用程序。然而，当我尝试使用GoogleWebAuthorizationBroker.AuthorizeAsync（）授权访问Google时，如果用户在浏览器中关闭了身份验证页面，该方法永远不会返回！

即使我使用30秒取消令牌，如果浏览器关闭，它永远不会返回。

  public bool Authorize（）
 {
_authorised = false; 
 UserCredential credential = null; 
尝试
 {
 //这里是我们要求用户给我们访问的地方，或者使用先前存储在％AppData％
中的Refresh Token CancellationTokenSource cts = new CancellationTokenSource （新TimeSpan（0,0,30））; 
凭证= GoogleWebAuthorizationBroker.AuthorizeAsync（新ClientSecrets {ClientId = this.ClientId，ClientSecret = this.ClientSecret}，
作用域，
用户名，
 cts.Token，// CancellationToken。无，
新的FileDataStore（AppName））。 
} 
 catch（例外）
 {
 return _authorised; （（凭证！=空）&&（凭证。令牌。访问！=空））
 {
 
} 
 
服务= new DriveService（new BaseClientService.Initializer（）{HttpClientInitializer = credential，ApplicationName = AppName，}）; 
 _authorised = true; 
} 
 
 return _authorised; 
} 
  

如何阻止用户关闭浏览器窗口并停止我的应用程序挂起？

解决方案

这是Google .net客户端库中的一个已知问题。

1. GoogleWebAuthorizationBroker.AuthorizeAsync在用户关闭浏览器时挂起


2. 在GoogleWebAuthorizationBroker.AuthorizeAsync上没有超时？

目前没有我知道的解决方法。我建议在论坛上添加你的名字，以鼓励团队解决这个问题。

更新：它现在在名单上在等待浏览器响应时，GoogleWebAuthorizationBroker未兑现CancellationToken

I'm writing a C# desktop app that can copy its output to a users Google Drive. However when I try an authorise access to Google with GoogleWebAuthorizationBroker.AuthorizeAsync() if the user closes the authentication page in the browser the method never returns!

Even if I use a 30 sec cancellation token it never returns if the browser is closed.

public bool Authorise()
{
    _authorised = false;
    UserCredential credential = null;
    try
    {
        // here is where we Request the user to give us access, or use the Refresh Token that was previously stored in %AppData%
        CancellationTokenSource cts = new CancellationTokenSource(new TimeSpan(0,0,30));
        credential = GoogleWebAuthorizationBroker.AuthorizeAsync(new ClientSecrets { ClientId = this.ClientId, ClientSecret = this.ClientSecret },
                                                                 Scopes,
                                                                 UserName,
                                                                 cts.Token,//CancellationToken.None,
                                                                 new FileDataStore(AppName)).Result;
    }
    catch (Exception)
    {
        return _authorised;
    }

    if ((credential != null) && (credential.Token.AccessToken != null))
    {

        Service = new DriveService(new BaseClientService.Initializer() { HttpClientInitializer = credential, ApplicationName = AppName, });
        _authorised = true;
    }

    return _authorised;
}

How can I trap the user closing the browser window and stop my application hanging?

解决方案

This is a known issue in the Google .net Client library.

1. GoogleWebAuthorizationBroker.AuthorizeAsync Hang when user closes browser
2. No time out on GoogleWebAuthorizationBroker.AuthorizeAsync?

There is currently no workaround that I know of. I recommend adding your name to the issues on the forum to encourage the team to address the issue.

Update: Its now on the list GoogleWebAuthorizationBroker does not honour CancellationToken when waiting for browser response

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