1

我的应用程序为所有用户显示我的 power bi 帐户的仪表板，我正在通过对话框授权 Azure Active Directory 以获取访问令牌。我可以在不使用授权对话框的情况下对我的凭据进行硬编码并获取访问令牌吗？代码。它可以工作，但它正在使用授权对话框。

           var @params = new NameValueCollection
        {
            {"response_type", "code"},
            {"client_id", Properties.Settings.Default.ClientID},
            {"resource", "https://analysis.windows.net/powerbi/api"},
            {"redirect_uri", "http://localhost:13526/Redirect"}
        };


        var queryString = HttpUtility.ParseQueryString(string.Empty);
        queryString.Add(@params);

        string authorityUri = "https://login.windows.net/common/oauth2/authorize/";
        var authUri = String.Format("{0}?{1}", authorityUri, queryString);
        Response.Redirect(authUri);


        Redirect.aspx
        string redirectUri = "http://localhost:13526/Redirect";
        string authorityUri = "https://login.windows.net/common/oauth2/authorize/";

        string code = Request.Params.GetValues(0)[0];

        TokenCache TC = new TokenCache();

        AuthenticationContext AC = new AuthenticationContext(authorityUri, TC);
        ClientCredential cc = new ClientCredential
            (Properties.Settings.Default.ClientID,
            Properties.Settings.Default.ClientSecret);

        AuthenticationResult AR = AC.AcquireTokenByAuthorizationCode(code, new Uri(redirectUri), cc);

        Session[_Default.authResultString] = AR;

        Response.Redirect("/Default.aspx");
        Default.aspx
         string responseContent = string.Empty;

        System.Net.WebRequest request = System.Net.WebRequest.Create(String.Format("{0}dashboards", baseUri)) as System.Net.HttpWebRequest;
        request.Method = "GET";
        request.ContentLength = 0;
        request.Headers.Add("Authorization", String.Format("Bearer {0}", authResult.AccessToken));

        using (var response = request.GetResponse() as System.Net.HttpWebResponse)
        {
            using (var reader = new System.IO.StreamReader(response.GetResponseStream()))
            {
                responseContent = reader.ReadToEnd();
                PBIDashboards PBIDashboards = JsonConvert.DeserializeObject<PBIDashboards>(responseContent);
            }
        }
4

2 回答 2

4

我在没有使用 ADAL 的情况下做了一次。对于 Power BI 也是如此，因为它们不提供应用程序权限，只提供委托。

您需要使用 . 调用 AAD 令牌端点grant_type=password。您将在表单参数中指定用户名和密码，以及客户端 ID、客户端密码和资源 URI。

这是我写的函数：

private async Task<string> GetAccessToken()
{
    string tokenEndpointUri = Authority + "oauth2/token";

    var content = new FormUrlEncodedContent(new []
        {
            new KeyValuePair<string, string>("grant_type", "password"),
            new KeyValuePair<string, string>("username", Username),
            new KeyValuePair<string, string>("password", Password),
            new KeyValuePair<string, string>("client_id", ClientId),
            new KeyValuePair<string, string>("client_secret", ClientSecret),
            new KeyValuePair<string, string>("resource", PowerBiResourceUri)
        }
    );

    using (var client = new HttpClient())
    {
        HttpResponseMessage res = await client.PostAsync(tokenEndpointUri, content);

        string json = await res.Content.ReadAsStringAsync();

        AzureAdTokenResponse tokenRes = JsonConvert.DeserializeObject<AzureAdTokenResponse>(json);

        return tokenRes.AccessToken;
    }
}

这里的权威是https://login.microsoftonline.com/tenant-id/。这是我正在使用的响应类：

class AzureAdTokenResponse
{
    [JsonProperty("access_token")]
    public string AccessToken { get; set; }
}
于 2016-11-28T13:00:58.387 回答
0

我希望使用 UserCreadential 您已经提供了 azure 订阅的用户名和密码，并且您可以获得 AccessToken 并调用您的 api。我希望它应该对你有所帮助。 

 string ResourceUrl="https://analysis.windows.net/powerbi/api";
 string ClientId=Properties.Settings.Default.ClientID;//as per your code
 AuthenticationContext authenticationContext = new AuthenticationContext(Constants.AuthString, false);
 UserCredential csr = new UserCredential("your-username", "password");
 AuthenticationResult authenticationResult = authenticationContext.AcquireToken(ResourceUrl,ClientId, usr);
 string token = authenticationResult.AccessToken;
于 2016-11-28T13:12:20.527 回答