如何同步等待'AuthenticationContext.AcquireTokenAsync()'？

Question

首先，我不确定这是否重要，但由于@Simon Mourier在, I'm using the EXPERIMENTAL build of ADAL, this one[中提到的原因=42=].

在下面的代码中，我想同步检索一个AuthenticationResult，所以，我将以同步方式等待AcquireTokenAsync方法完成身份验证。

这是因为在授权完成后应该设置一个布尔标志 (isAuthorized = true)，但是 tgis 需要以同步方式发生，因为如果没有，那么我可以调用 class 将抛出空引用，因为对 AcquireTokenAsync 的调用未完成，因此对象为空。

下面的代码不起作用，该方法永远不会return，因为对AcquireTokenAsync方法的调用似乎无限期地冻结了线程。

C#（可能由于在线翻译语法错误）：

public void Authorize() { // Use the 'Microsoft.Experimental.IdentityModel.Clients.ActiveDirectory' Nuget package for auth. this.authContext = new AuthenticationContext(this.authUrl, this.cache); this.authResult = this.authContext.AcquireTokenAsync({ "https://outlook.office.com/mail.readwrite" }, null, this.clientIdB, this.redirectUriB, new PlatformParameters(PromptBehavior.Auto, this.windowHandleB)).Result; // Use the 'Microsoft.Office365.OutlookServices-V2.0' Nuget package from now on. this.client = new OutlookServicesClient(new Uri("https://outlook.office.com/api/v2.0"), () => Task.FromResult(this.authResult.Token)); this.isAuthorizedB = true; }

VB.NET:

Public Sub Authorize() ' Use the 'Microsoft.Experimental.IdentityModel.Clients.ActiveDirectory' Nuget package for auth. Me.authContext = New AuthenticationContext(Me.authUrl, Me.cache) Me.authResult = Me.authContext.AcquireTokenAsync({"https://outlook.office.com/mail.readwrite"}, Nothing, Me.clientIdB, Me.redirectUriB, New PlatformParameters(PromptBehavior.Auto, Me.windowHandleB)).Result ' Use the 'Microsoft.Office365.OutlookServices-V2.0' Nuget package from now on. Me.client = New OutlookServicesClient(New Uri("https://outlook.office.com/api/v2.0"), Function() Task.FromResult(Me.authResult.Token)) Me.isAuthorizedB = True End Sub

我做了一些研究并尝试了其他两种选择，但还是一样..

第一名：

ConfiguredTaskAwaitable<AuthenticationResult> t = this.authContext.AcquireTokenAsync(scopeUrls.ToArray(), null, this.clientIdB, this.redirectUriB, new PlatformParameters(PromptBehavior.Auto, this.windowHandleB)).ConfigureAwait(false); this.authResult = t.GetAwaiter.GetResult();

第二名：

this.authResult == RunSync(() => { return this.authContext.AcquireTokenAsync(scopeUrls.ToArray(), null, this.clientIdB, this.redirectUriB, new PlatformParameters(PromptBehavior.Auto, this.windowHandleB)); }) private AuthenticationResult RunSync<AuthenticationResult>(Func<Task<AuthenticationResult>> func) { return Task.Run(func).Result; }

Answer 1

How to wait for 'AuthenticationContext.AcquireTokenAsync()' synchronouslly?

我怀疑这个问题是在UI线程中调用async方法引起的。目前，我的解决方法是将调用封装到一个新的工作线程中。

    private void button1_Click(object sender, EventArgs e)
    {
        Authorize().Wait();
    }

    private Task Authorize()
    {
        return Task.Run(async () => {
            var authContext = new AuthenticationContext("https://login.microsoftonline.com/common");

            var authResult = await authContext.AcquireTokenAsync
            (new string[] { "https://outlook.office.com/mail.readwrite" },
             null,
             "{client_id}",
             new Uri("urn:ietf:wg:oauth:2.0:oob"),
             new PlatformParameters(PromptBehavior.Auto, null));
        });
    }

Answer 2

How to wait for 'AuthenticationContext.AcquireTokenAsync()' synchronouslly?

AcquireTokenAsync() returns "Task"。您只需要使用“.Wait()”等待它。在你的主程序中你只需要这样做：

Task<AuthenticationResult> res = authContext.AcquireTokenAsync(resourceUri, clientID, new Uri(redirectUri), new PlatformParameters(PromptBehavior.Auto));
res.Wait();
Console.WriteLine(res.Result.AccessToken);

Answer 3

我在 Xamarin.Android 上与这个问题斗争了 2 天。它永远不会来自 AquireTokenAsync 方法 returns。答案几乎是可笑的。您需要在 MainActivity.cs 中添加以下内容：

    protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
    {
        base.OnActivityResult(requestCode, resultCode, data);
        AuthenticationAgentContinuationHelper.SetAuthenticationAgentContinuationEventArgs(requestCode, resultCode, data);
    }

有趣的是，它实际上说 ContinuationHelper... smh.

如何同步等待'AuthenticationContext.AcquireTokenAsync()'？

How to wait for 'AuthenticationContext.AcquireTokenAsync()' synchronouslly?

.net

c#

outlook

office365

adal