未发送HttpClient身份验证标头

Question

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。以下是我到目前为止的结论：

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;

Answer 1

您的代码看起来应该可以工作--我记得在设置授权头时遇到过类似的问题，并通过执行headers.add（）而不是设置它来解决：

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

UPDATE：看起来，当您执行一个request.content时，并不是所有的头都反映在content对象中。通过检查request.headers和request.content.headers可以看到这一点。您可能要尝试的一件事是使用SendAsync而不是PostAsync。例如：

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;