On 6/4/09 7:51 AM, "Dan Poirier" <[email protected]> wrote:
> and having to write a program to
> implement mod_rewrite or a virtual host yourself.
Something like this would be trivial to do:
if prefix_match(r.uri, "/foo/") then
return do_redirect(r, "http://somewhere.else/";)
end
Okay, not a great example, but it's early here :) The fact that
conditionals are just *there* in lua would make some rewrite operations
easier. We could also provide plenty of helper stuff (written in lua,
probably).
rr = httpd.rewrite
rr.rule('/something(.*)', '/other$1')
....
-- in handler
x = rr.run( r )
if(x != DECLINED) then
return x
end
if r.env["something"] then
return proxy:request(r, "http://some.domain.com";)
end
Like I said, I'm not just thinking of lua as a config, but lua as the
"driver" of httpd. Or at least provide enough glue for some core modules to
allow us "advanced" users to do this. We may not need a whole lot of glue
to start with, a few useful ones:
serve_file(r, "/some/file/on/disk")
x = do_subrequest(r, uri) -- x could contain headers, bucket brigade (or
just a big string)
do_redirect(r, location, 301)
Also, it would be nice if we could redo the mod_lua lua-request_rec glue so
that other modules can "mixin" addition functionality:
require "httpd.util"
r:serve_file("/some/file"
r:redirect(location, 301)
I've been playing with that, but my lua-glue foo is weak. Something about
the way we are handling the metatable and __index doesn't like that.
--
Brian Akins
Chief Operations Engineer
Turner Digital Media Technologies
