我有一个WebApi在我的代码中抛出异常的问题：
public class WebApiAuthenticationHandler : DelegatingHandler
{
private const string AuthToken = "AUTH-TOKEN";
protected override Task<HttpResponseMessage> SendAsync(
HttpRequestMessage request,CancellationToken cancellationToken)
{
var requestAuthTokenList = GetRequestAuthTokens(request);
if (ValidAuthorization(requestAuthTokenList))
{
// EXCEPTION is occuring here!....
return base.SendAsync(request,cancellationToken);
}
/*
** This will make the whole API protected by the API token.
** To only protect parts of the API then mark controllers/methods
** with the Authorize attribute and always return this:
**
** return base.SendAsync(request,cancellationToken);
*/
return Task<HttpResponseMessage>.Factory.StartNew(
() =>
{
var resp = new HttpResponseMessage(HttpStatusCode.Unauthorized)
{
Content = new StringContent("Authorization Failed")
};
//var resp = new HttpResponseMessage(HttpStatusCode.Unauthorized);
//resp.Headers.Add(SuppressFormsAuthenticationRedirectModule.SuppressFormsHeaderName,"true");
return resp;
});
}
例外情况正在发生：
base.SendAsync(request,cancellationToken);
routes.MapHttpRoute("NoAuthrequiredApi","api/auth/",new { Controller = "Auth" });
routes.MapHttpRoute("DefaultApi","api/{controller}/{id}",new { id = RouteParameter.Optional },null,new WebApiAuthenticationHandler());
发生这种路由是DefaultApi路由.任何帮助非常感谢….
解决方法
找到答案
here和一个示例处理程序
here.
您需要设置您希望传递的请求的InnerHandler.
public class WebApiAuthenticationHandler : DelegatingHandler
{
public WebApiAuthenticationHandler(HttpConfiguration httpConfiguration)
{
InnerHandler = new HttpControllerDispatcher(httpConfiguration);
}
并在创建新实例时传递对GlobalConfiguration的引用：
routes.MapHttpRoute("DefaultApi",WebApiAuthenticationHandler(GlobalConfiguration.Configuration));
