Add support https proxy for ph-httpclient

[TrinhNg]

Hi Philip,

First of all, thank you for providing such a comprehensive and useful set of libraries for Peppol — they have been a great help to us.

Currently, I’m working on deploying our Access Point (AP), which uses the phase4 library to send and receive Peppol messages within a Kubernetes cluster. In our setup, we need to control all inbound and outbound traffic, so the AP must be configured to route requests through a proxy.

Since the AP performs POST requests to dynamic URLs, proxy usage is essential. However, after checking the current implementation of ph-httpclient, it appears that only HTTP proxy is supported.

Would it be possible to add support for HTTPS proxy as well? This would greatly help us ensure compliance with our network policies and secure infrastructure setup.

Thank you!

[phax]

https proxies are also feasible - just configure the proxy host in HttpClientSettings and it will work

[TrinhNg]

Hi @phax

I noticed that the current configuration supports http.proxy.host and http.proxy.port, which applies the same proxy settings to both HTTP and HTTPS traffic when set in application.properties.

In our case, we’d like to route HTTP and HTTPS traffic through different proxies in our Kubernetes cluster. Specifically:

During the SMP query step, a GET request is made to an http://endpoint-url. This should go through our HTTP proxy (e.g. proxy-http.mydomain.com:1234).

During the AS4 message transmission, a POST request is made to an https://endpoint-url. This should go through our HTTPS proxy (e.g. proxy-https.mydomain.com:5678).

Would it be possible to support separate proxy settings for HTTP and HTTPS connections?

Thanks in advance for considering this enhancement!

[phax]

@TrinhNg Okay thanks - I understand. Will need to check if this is possible...

[phax]

This will be part of the 10.5.0 release which will be used in phase4 3.2.2

[TrinhNg]

Thank you so much!