AuthenticationContext.AcquireTokenAsync [英] AuthenticationContext.AcquireTokenAsync

问题描述

我希望能够以编程方式从Azure获得令牌.

I would like to be programmatically able to get a token from Azure.

我调用 GetAToken().Wait(); ，但失败.

，方法是:

public async Task<string> GetAToken()
{
    // authentication parameters
    string clientID = "*********";
    string username = "<azure login>";
    string password = "<azure login password>";
    string directoryName = "<AD Domain name>";

    ClientCredential cc = new ClientCredential(clientID, password);
    var authenticationContext = new AuthenticationContext(
           "https://login.windows.net/" + directoryName);

    AuthenticationResult result = await authenticationContext.AcquireTokenAsync(
           "https://management.core.windows.net/", cc);

    if (result == null)
    {
        throw new InvalidOperationException("Failed to obtain the JWT token");
    }

    string token = result.AccessToken;

    return token;
}

推荐答案

因此不确定是否要在Android，iOS或Xamarin.Forms上执行此操作.以下是我将如何通过ADAL和Azure进行身份验证(代码正在我的终端上工作):

So not sure if you are doing this on Android, iOS or Xamarin.Forms. Below is how I will authenticate with ADAL and Azure (the code is working on my end):

在Android上:

public async Task<AuthenticationResult> Authenticate(Activity context, string authority, string resource, string clientId, string returnUri)
{
    var authContext = new AuthenticationContext(authority);
    if (authContext.TokenCache.ReadItems().Any())
        authContext = new AuthenticationContext(authContext.TokenCache.ReadItems().First().Authority);

    var uri = new Uri(returnUri);
    var platformParams = new PlatformParameters(context);
    try
    {
        var authResult = await authContext.AcquireTokenAsync(resource, clientId, uri, platformParams);
        return authResult;
    }
    catch (AdalException e)
    {
        return null;
    }
}

在iOS上:

public async Task<AuthenticationResult> Authenticate(UIViewController controller, string authority, string resource, string clientId, string returnUri)
    {
        var authContext = new AuthenticationContext(authority);
        if (authContext.TokenCache.ReadItems().Any())
            authContext = new AuthenticationContext(authContext.TokenCache.ReadItems().First().Authority);

        var controller = UIApplication.SharedApplication.KeyWindow.RootViewController;
        var uri = new Uri(returnUri);
        var platformParams = new PlatformParameters(controller);

        try
        {
            var authResult = await authContext.AcquireTokenAsync(resource, clientId, uri, platformParams);
            return authResult;
        }
        catch (AdalException e)
        {
            return null;
        }
    }

在 UWP 上:

public async Task<AuthenticationResult> Authenticate(string authority, string resource, string clientId, string returnUri)
{
    var authContext = new AuthenticationContext(authority);
    if (authContext.TokenCache.ReadItems().Any())
        authContext = new AuthenticationContext(authContext.TokenCache.ReadItems().First().Authority);

    var uri = new Uri(returnUri);
    var platformParams = new PlatformParameters(PromptBehavior.Auto);
    try
    {
        var authResult = await authContext.AcquireTokenAsync(resource, clientId, uri, platformParams);
        return authResult;
    }
    catch (AdalException e)
    {
        return null;
    }
}

我传入上述方法的变量:

Variable that I pass into the methods above:

string authority = "https://login.windows.net/common";
string ResourceID = "Backend ClientId";//Backend (web app)
string clientId = "Native App ClientId";//native app
string returnUri = "https://{My Azure Site}.azurewebsites.net/.auth/login/done";

如果您想在Xamarin.Forms中执行此操作，则下面是指向我的GitHub解决方案的链接，在该解决方案中，我已通过 DependencyService 公开了这些方法.

If you want to do this in Xamarin.Forms, below are links to my GitHub solution where I have exposed these methods through the DependencyService.

• PCL实现
• iOS实现
• Android实现

我希望这会有所帮助！如果您的响应中出现任何错误，请检查以确保您在Azure中正确设置了权限.我喜欢此.另一个很棒的资源是 Adrian Hall的Xamarin/Azure书

I hope this helps! If you get any errors from your response, check to make sure you have your permissions setup in Azure correctly. I do it like this. Another great resource is Adrian Hall's Xamarin/Azure book

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