为 Excel PowerPivot 编写安全的 WCF 数据服务

Question

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9 年前已关闭。

Answer 1

我也在努力解决同样的问题，经过一番研究后发现这篇博客文章让我滚动：

http://pfelix.wordpress.com/2011/04/21/wcf-web-api-self-hosting-https-and-http -basic-authentication/

简而言之，您需要做一些工作才能允许主体流向服务调用。

Answer 2

上有一个完整的可下载示例，

MSDN WCF 数据服务

其中包含 PowerPivot 客户端的基本身份验证https://code.msdn.microsoft.com/office/WCF-Data-Service-with-547e9341

更新

好的，现在我已经使用了链接中的代码（我当时正在研究我发布了）我知道它可以工作，所以这里是代码示例：

步骤 1：编写一个 HTTP 处理程序来处理所有请求并执行身份验证（或发出 401 质询）。

namespace WebHostBasicAuth.Modules
{
    public class BasicAuthHttpModule : IHttpModule
    {
        private const string Realm = "My Realm";

        public void Init(HttpApplication context)
        {
            // Register event handlers
            context.AuthenticateRequest += OnApplicationAuthenticateRequest;
            context.EndRequest += OnApplicationEndRequest;
        }

        private static void SetPrincipal(IPrincipal principal)
        {
            Thread.CurrentPrincipal = principal;
            if (HttpContext.Current != null)
            {
                HttpContext.Current.User = principal;
            }
        }

        // TODO: Here is where you would validate the username and password.
        private static bool CheckPassword(string username, string password)
        {
            return username == "user" && password == "password";
        }

        private static void AuthenticateUser(string credentials)
        {
            try
            {
                var encoding = Encoding.GetEncoding("iso-8859-1");
                credentials = encoding.GetString(Convert.FromBase64String(credentials));

                int separator = credentials.IndexOf(':');
                string name = credentials.Substring(0, separator);
                string password = credentials.Substring(separator + 1);

                if (CheckPassword(name, password))
                {
                    var identity = new GenericIdentity(name);
                    SetPrincipal(new GenericPrincipal(identity, null));
                }
                else
                {
                    // Invalid username or password.
                    HttpContext.Current.Response.StatusCode = 401;
                }
            }
            catch (FormatException)
            {
                // Credentials were not formatted correctly.
                HttpContext.Current.Response.StatusCode = 401;
            }
        }

        private static void OnApplicationAuthenticateRequest(object sender, EventArgs e)
        {
            var request = HttpContext.Current.Request;
            var authHeader = request.Headers["Authorization"];
            if (authHeader != null)
            {
                var authHeaderVal = AuthenticationHeaderValue.Parse(authHeader);

                // RFC 2617 sec 1.2, "scheme" name is case-insensitive
                if (authHeaderVal.Scheme.Equals("basic",
                        StringComparison.OrdinalIgnoreCase) &&
                    authHeaderVal.Parameter != null)
                {
                    AuthenticateUser(authHeaderVal.Parameter);
                }
            }
        }

        // If the request was unauthorized, add the WWW-Authenticate header 
        // to the response.
        private static void OnApplicationEndRequest(object sender, EventArgs e)
        {
            var response = HttpContext.Current.Response;
            if (response.StatusCode == 401)
            {
                response.Headers.Add("WWW-Authenticate",
                    string.Format("Basic realm=\"{0}\"", Realm));
            }
        }

        public void Dispose() 
        {
        }
    }
}

步骤 2：通过 web.config 使用 IIS 配置新处理程序。

  <system.webServer>
    <modules>
      <add name="BasicAuthHttpModule" 
        type="WebHostBasicAuth.Modules.BasicAuthHttpModule, YourAssemblyName"/>
    </modules>
  ...

对于 Excel PowerPivot 很重要

请参阅此错误：PowerPivot 未将基本身份验证中的授权标头发送到 OData Svc