Background
Ikiwiki has several plugins that open outbound connections:
In some networks it is desired (or necessary) for these connections
to traverse a proxy. Proxies are usually configured via environment
variables, so for ikiwiki it is probably not desirable (or necessary)
to manage proxy configuration via new purpose-specific settings in
the setup file; ENV ought to suffice.
LWP::UserAgent by default doesn't care about the usual
environment variables, but if its constructor is passed a true
env_proxy value, it does. Then environment settings such as these
influence the agent, as expected:
ENV:
http_proxy: 'http://foo.internal:8080'
no_proxy: 'localhost,.bar.internal'
If the proxy and/or destination requires authentication, it may
also be necessary to prime cookiejar.
Changes
This patch causes ikiwiki's LWP::UserAgent instances to:
- honor proxy configuration in the environment
- consistently make use of cookies configured in the setup file
Limitations
The patch lets me configure aggregate to traverse my corporate proxy and to skip the proxy for internal hosts. I haven't tested it with the other two plugins, both of which prefer LWPx::ParanoidAgent if present, which deliberately lacks proxy support. There exists LWP::UserAgent::Paranoid claiming to be more modern, but I haven't looked at it further, so I don't know whether its paranoia measures up or whether it supports proxies.
See also
This looks fine, but you forgot to move the config entry for cookiejar from aggregate to the config setting list in IkiWiki.pm --Joey
Indeed, fixed. --schmonz