How can I send an APNs (Apple Push Notification Service) message through a proxy that requires authentication?

[thukschan]

In one of our projects, we're currently handling proxy authentication using Apache HttpClient as shown below. How can we achieve similar proxy authentication when using the Pushy library?

HttpHost proxy = new HttpHost("x.x.com",8080);
Credentials credentials = new UsernamePasswordCredentials("username","password");
AuthScope authScope = new AuthScope("x.x.com", 8080);
CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials(authScope, credentials);
HttpClient client = HttpClientBuilder.create().setProxy(proxy).setDefaultCredentialsProvider(credsProvider).build();
HttpResponse response=client.execute(new HttpGet("http://stackoverflow.com/"));

[jchambers]

Please see:

1. ApnsClientBuilder#setProxyHandlerFactory
2. HttpProxyHandlerFactory

HttpProxyHandlerFactory has a constructor that accepts a username and password for HTTP basic authentication.

[thukschan]

Thank you for your response.
We also need to connect to a proxy using Kerberos authentication. To achieve this, we're exploring the use of a Reactor Netty client. Could you please advise on how this can be implemented?

For example, we’re currently attempting something like:

String token = generateSpnegoToken("HTTP/your-service-host@REALM");
httpClient.headers(headers -> headers.set("Authorization", "Negotiate " + token));

[jchambers]

I think the most immediate way forward for you would be to implement your own ProxyHandlerFactory that instantiates an HttpProxyHandler with a specific set of headers. The existing HttpProxyHandlerFactory has a lot of machinery you probably don't need; ultimately, I think you'd want something really simple that just does:

public class FancyHttpProxyHandlerFactory {

  private final SocketAddress proxyAddress;
  private final HttpHeaders httpHeaders;

  public FancyHttpProxyHandlerFactory(final SocketAddress proxyAddress, final HttpHeaders httpHeaders) {
    this.proxyAddress = proxyAddress;
    this.httpHeaders = httpHeaders;
  }

  @Override
  public ProxyHandler createProxyHandler() {
    return new HttpProxyHandler(proxyAddress, httpHeaders);
  }
}

[thukschan]

Thank you. This worked for us.