Add rewrite directive so the internal uri can be modified

[Monviech]

I need this in a few cases, so I have to add it.

https://caddyserver.com/docs/caddyfile/directives/rewrite

A handle with a rewrite will look like this:

# Reverse Proxy Domain: "9ec53848-971d-427e-a81c-5107a4094e6d"
example.com:7861 {
        handle /test {
                rewrite * /test/location
                reverse_proxy 172.16.0.173:7861 {
                }
        }

        handle {
                rewrite * /different/location
                reverse_proxy 172.16.0.173:7861 {
                }
        }
}

Since I will add the rewrites into the handles, after they have matched a handle path, I can leave the rewrite always on "*" and then change the location afterwards.

That makes it easy to implement since its just a new field and a small change in the Caddyfile template.

• [ ] Add a text field with input validation as handle.rewrite. The input validation has to make sure all strings start with / , thats it.
• [ ] Change Caddyfile template to add a "rewrite * /new/location" when the rewrite field is filled out.

[Monviech]

Hmm probably not... there's not a lot of benefit in it for me. Caddy doesn't have the same problems as nginx does in this regard, so it's kinda useless to implement to fake redirections and stuff. Closing this without implementing it.