private static bool IsSystemProxySet(Uri uri)
{
// The reason for not calling the GetSystemProxy is because the object
// that will be returned is no longer going to be the proxy that is set by the settings
// on the users machine only the Address is going to be the same.
// Not sure why the .NET team did not want to expose all of the useful settings like
// ByPass list and other settings that we can't get because of it.
// Anyway the reason why we need the DefaultWebProxy is to see if the uri that we are
// getting the proxy for to should be bypassed or not. If it should be bypassed then
// return that we don't need a proxy and we should try to connect directly.
IWebProxy proxy = WebRequest.DefaultWebProxy;
if (proxy != null)
{
Uri proxyAddress = new Uri(proxy.GetProxy(uri).AbsoluteUri);
if (String.Equals(proxyAddress.AbsoluteUri, uri.AbsoluteUri))
{
return false;
}
bool bypassUri = proxy.IsBypassed(uri);
if (bypassUri)
{
return false;
}
proxy = new WebProxy(proxyAddress);
}
return proxy != null;
}
}
