HttpClient身份验证标头未发送 [英] HttpClient authentication header not getting sent

问题描述

我试图将 HttpClient 用于需要基本HTTP身份验证的第三方服务。我正在使用 AuthenticationHeaderValue 。到目前为止，这是我想出的内容：

I'm trying to use an HttpClient for a third-party service that requires basic HTTP authentication. I am using the AuthenticationHeaderValue. Here is what I've come up with so far:

HttpRequestMessage<RequestType> request = 
    new HttpRequestMessage<RequestType>(
        new RequestType("third-party-vendor-action"),
        MediaTypeHeaderValue.Parse("application/xml"));
request.Headers.Authorization = new AuthenticationHeaderValue(
    "Basic", Convert.ToBase64String(System.Text.ASCIIEncoding.ASCII.GetBytes(
        string.Format("{0}:{1}", "username", "password"))));

var task = client.PostAsync(Uri, request.Content);
ResponseType response = task.ContinueWith(
    t =>
    {
        return t.Result.Content.ReadAsAsync<ResponseType>();
    }).Unwrap().Result;

看起来POST操作可以正常运行，但是我没有得到我期望的数据。经过反复试验，最终使用Fiddler嗅探原始流量，我发现授权头没有被发送。

It looks like the POST action works fine, but I don't get back the data I expect. Through some trial and error, and ultimately using Fiddler to sniff the raw traffic, I discovered the authorization header isn't being sent.

我见过此，但我认为我已将身份验证方案指定为<$ c $的一部分c> AuthenticationHeaderValue 构造函数。

I've seen this, but I think I've got the authentication scheme specified as a part of the AuthenticationHeaderValue constructor.

是否有我想念的东西？

推荐答案

您的代码看起来应该可以工作-我记得设置Authorization标头时遇到了类似的问题，并通过执行Headers.Add（）而不是设置它来解决：

Your code looks like it should work - I remember running into a similar problem setting the Authorization headers and solved by doing a Headers.Add() instead of setting it:

request.Headers.Add("Authorization", "Basic " + Convert.ToBase64String(System.Text.ASCIIEncoding.ASCII.GetBytes(string.Format("{0}:{1}", "username", "password"))));

更新：
.content，并非所有标头都反映在内容对象中。您可以通过检查request.Headers与request.Content.Headers来查看。您可能想尝试的一件事是使用SendAsync而不是PostAsync。例如：

UPDATE: It looks like when you do a request.Content, not all headers are being reflected in the content object. You can see this by inspecting request.Headers vs request.Content.Headers. One thing you might want to try is to use SendAsync instead of PostAsync. For example:

HttpRequestMessage<RequestType> request = 
     new HttpRequestMessage<RequestType>(
         new RequestType("third-party-vendor-action"),
         MediaTypeHeaderValue.Parse("application/xml"));

request.Headers.Authorization = 
    new AuthenticationHeaderValue(
        "Basic", 
        Convert.ToBase64String(
            System.Text.ASCIIEncoding.ASCII.GetBytes(
                string.Format("{0}:{1}", "username", "password"))));

 request.Method = HttpMethod.Post;
 request.RequestUri = Uri;
 var task = client.SendAsync(request);

 ResponseType response = task.ContinueWith(
     t => 
         { return t.Result.Content.ReadAsAsync<ResponseType>(); })
         .Unwrap().Result;

这篇关于HttpClient身份验证标头未发送的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！