HTTP 客户端未向代理服务器 C# 进行身份验证

Question

我正在尝试使用凭据从客户端站点的 Windows 服务对代理服务器进行身份验证，但不断收到以下响应：StatusCode: 407, ReasonPhrase: 'Proxy Authentication Required', Version: 1.1, Content: System.Net.Http.StreamContent, Headers: {Pragma: no-cacheProxy-Connection: closeConnection: closeCache-Control: no-cacheProxy -验证：NTLMSet-Cookie：BCSI-CS-2737f33ff5b5f739=2；路径=/内容长度：1351内容类型：文本/html；字符集=utf-8}我的本地代理配置完全不同，我无法重现该问题。这是我用来与服务器进行身份验证的代码。（如代码中所述，它基于：HttpClient 和使用代理 - 不断获得 407 private HttpClient GenerateHttpClientWithProxySettings(){    //Code based on https://stackoverflow.com/questions/29856543/httpclient-and-using-proxy-constantly-getting-407    // First create a proxy object    var proxy = new WebProxy()    {        Address = new Uri($"{Settings.ProxyAddress}:{Settings.PortNumber}"),        BypassProxyOnLocal = false,        UseDefaultCredentials = false,        // *** These creds are given to the proxy server, not the web server ***        Credentials = new NetworkCredential(            userName: Settings.ProxyUserName,            password: Settings.ProxyPassword)    };    //Debug:    Settings.log.Debug($"{Settings.ProxyAddress}:{Settings.PortNumber}");    Settings.log.Debug(Settings.ProxyUserName);    Settings.log.Debug(Settings.ProxyPassword);    // Now create a client handler which uses that proxy    var httpClientHandler = new HttpClientHandler()    {        Proxy = proxy,        UseProxy = true,        AllowAutoRedirect = true,    };对我在这里做错的任何帮助将不胜感激。

Answer 1

从响应头

Proxy-Authenticate: NTLM

代理接受 Windows 凭据而不是用户名/密码。

试试这个

var proxy = new WebProxy()

{

    ...

    UseDefaultCredentials = true

    /*Credentials = new NetworkCredential(

        userName: Settings.ProxyUserName,

        password: Settings.ProxyPassword)*/

};