Support for http_proxy

[afresh1]

We attempted to use this module, specifically via Bot::Backbone::Service::SlackChat, but our network requires http traffic to Slack to go through our proxy server. As we have been unable to find the time to create a patch for this internally we are hoping someone else will be able to.

AnyEvent::HTTP does have some proxy support which may be a useful reference.

LPW::UserAgent has a lot more code to detect the proxy, which is then used by LWP::Protocol::http.

[plicease]

I welcome a patch for this. atm I don't have time to do it myself.

[debug-ito]

I'm interested in this issue, because our company also has a proxy in front of the public Internet.

It looks like Mojo has better support for proxies (as usual)

• https://metacpan.org/pod/Mojo::UserAgent

I think AnyEvent in general could use a better tool for proxies. I'm gonna think about it..

[debug-ito]

I just released AnyEvent::Connector.

So, by adding tcp_connect to AE::WS::Client similar to AnyEvent::HTTP, we can use AnyEvent::Connector to handle proxy connection, and AE::WS::Client to handle WebSocket session. Or we can add a more straightforward option to AE::WS::Client for proxy config.

@plicease what do you think about it? If you are busy, I'll make a pull-request.

[plicease]

I would be thrilled to review a PR👍🏻😀

[debug-ito]

OK, I'll give it a try :)

[plicease]

@afresh1 I am uploading 0.45_01 with @debug-ito's changes, can you see if that does what you need?

I do not atm have a proxy configured handy to test this, but expect to find some time in the next couple of days before any production release.

[plicease]

I want to leave this open for now.

[plicease]

After a few days of cpantesters results, it looks good to me, so I am doing a production release as 0.46. Please let me know if you have any troubles.

[afresh1]

I haven't had time to check github this week, but I'll have the folks try this out this week. Thank you so much @debug-ito !

I actually saw this first on mastodon :-)

UPDATE: Took a while, but I did finally get it tested and it seems to be working! Thanks again!
(although Bot::Backbone::Service::SlackChat and AnyEvent::SlackRTM both apparently need to pass through the env_proxy setting for this to work)