使用API Key验证WCF Data Service

Ron Jacobs 有篇文章介绍如何在WCF Rest Service中使用API Key验证：http://blogs.msdn.com/b/rjacobs/archive/2010/06/14/how-to-do-api-key-verification-for-rest-services-in-net-4.aspx ，在WCF Data Service中怎么做呢？本文将介绍如何在WCF Data Service中使用API Key进行验证，主要代码来自于Ron Jacobs的这篇文章.

API Key作为一个参数在URL中传递， 在Rob Jacobs的WCFWebHttpLibrary.APIKeyAuthorization的方法string GetAPIKey(OperationContext operationContext)的代码如下：

string GetAPIKey(OperationContext operationContext)

   2: {

// Get the request message

   4:   var request = operationContext.RequestContext.RequestMessage;

// Get the HTTP Request

   6:   var requestProp =(HttpRequestMessageProperty)request.Properties[HttpRequestMessageProperty.Name];

// Get the query string

   8:   NameValueCollection queryParams =

   9:       HttpUtility.ParseQueryString(requestProp.QueryString);

  10:  

// Return the API key (if present, null if not)

string apiKey = queryParams[APIKEY];

// Is the API Key available in the querystring?

null)

  15:   {

// Is the API Key available in the header?

  17:     apiKey = requestProp.Headers[APIKEY];

  18:   }

return apiKey;

  20: }