Apache HttpClient 4.1 - Proxy Authentication

Question

I've been trying to configure the user and password for proxy authentication from the configured properties while using Apaches HttpComponent's httpclient, but with no success. All examples I have found refer to methods and classes that are no longer available, such as HttpState and setProxyCredentials.

So, can anyone give me an example of how to configure the proxy credentials?

Answer 1

For Basic-Auth it looks like this:

DefaultHttpClient httpclient = new DefaultHttpClient();
httpclient.getCredentialsProvider().setCredentials(
    new AuthScope("PROXY HOST", 8080),
    new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("TARGET HOST", 443, "https");
HttpHost proxy = new HttpHost("PROXY HOST", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

AFAIK NTLM is not supported out of the box. But you might be able to manage that using NTCredentials and maybe overloading DefaultProxyAuthenticationHandler.