Support For Calling Unix Domain Sockets

[zicklag]

Hey there!

I really love using xh, good job on it, I use it all the time!

I ran into a need to make requests to a unix domain socket, and it would be nifty if xh could support that to.

A convenient way to do it would be to support unix:// URLs and then using everything after unix:// as a file path to the unix socket.

[blyxxyz]

HTTPie has a plugin for this (an old one, I don't know if it still works?): https://github.com/httpie/httpie-unixsocket
If we add this we should use the same interface.

reqwest doesn't support this directly (yet): seanmonstar/reqwest#39

There is this: https://github.com/softprops/hyperlocal
I don't remember if a hyper client can be converted to a reqwest client, but if so that might be enough to support it.

[blyxxyz]

I'm looking at prior art again. got also has support, and:

• Its syntax is nicer than the HTTPie plugin: http://unix:/var/run/docker.sock:/containers/json rather than http+unix://%2Fvar%2Frun%2Fdocker.sock/containers/json.
  • There doesn't seem to be a standard for this.
  • The plugin isn't super popular, maybe we can do without drop-in compatibility.
  • %2F shouldn't be strictly necessary to distinguish between filepath slashes and URL slashes, we could probe the filesystem. (But maybe we shouldn't, it'd e.g. give worse typo handling.)
  • We need something the url crate can handle.
• got got a redirect CVE. We have to make sure we're not vulnerable.