如何使用Internet Explorer使用的代理服务器在ASP.NET应用程序 [英] How to use the proxy used in Internet Explorer in an ASP.NET application

问题描述

在我的ASP.NET应用程序中，我使用WebRequest类，我想使用默认的系统代理。这里是code我使用。

In my ASP.NET application I am using the WebRequest class and I want to use the default system proxy. Here is the code I am using.

private static bool CheckIfUriIsReachable(string uri)
{
    bool reachable = true;

    var request = (HttpWebRequest)WebRequest.Create(uri);
    request.Method = "HEAD";

    var proxy = WebRequest.GetSystemWebProxy();

    proxy.Credentials = CredentialCache.DefaultCredentials;
    request.Proxy = proxy;

    HttpWebResponse response = null;
    try
    {
        response = (HttpWebResponse)request.GetResponse();
    }
    catch (WebException)
    {
        reachable = false;
    }
    finally
    {
        if (response != null)
        {
            response.Close();
        }
    }

    return reachable ;
}

当作为控制台应用程序的一部分运行这工作得很好 - 它正常工作时的一部分运行拿起系统代理（我假设在PC上签了字的用户的IE代理），但是，这并不工作在同一台机器上的ASP.NET应用程序。无代理发现。

This works perfectly well when run as part of a console application - it correctly picks up the system proxy (I assume the IE proxy for the signed-on user on the PC), However, this does not work when run as part of an ASP.NET application on the same machine. No proxy is found.

我想这是因为ASP.NET下不具有在系统注册表中的IE代理设置用户帐户下运行。我曾尝试包括在web.config文件中的以下但这不起作用。

I assume this is because ASP.NET is running under a user account that does not have an IE proxy setting in the system registry. I have tried to include the following in the web.config file but this does not work.

<system.net>
   <defaultProxy>
       <proxy usesystemdefault="true" />
   </defaultProxy>
</system.net>

我的问题是如何建立一个ASP.NET 3.5应用程序正确使用IE浏览器所使用的默认代理？

My question is how to setup an ASP.NET 3.5 application to correctly use the default proxy used by IE?

推荐答案

有没有全系统的默认代理。因此，你只能使用日当前用户的配置。如果不存在这样的配置，则有一个问题。

There is not system-wide default proxy. Thus you can only use th configuration of the current user. If there is no such configuration, you have a problem.

您可以尝试使用代理服务器配置中运行ASP.NET应用程序的应用程序池一个用户下或可考虑组策略，其中，据我所知，做支持设置系统级代理。

You can try to run the app pool of your ASP.NET application under a user with a proxy configuration or look into group policies, which, AFAIK, do support setting a system-wide proxy.

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