So is "rewrite_by_lua" also evil?

[agentzh]

On Fri, Oct 14, 2011 at 12:10 AM, Nginx User <nginx at nginxuser.net> wrote:
> Rebuilt with 0.31rc11. Also noticed note about, and implemented,
> module loading order.
> Everything seems straight as an arrow and no evil going ons detected so far.
>

Great!

But please note that this is really a bug in the nginx core, so what
I'm doing in ngx_lua's ngx.exec() (as well as ngx_echo's echo_exec) is
just a work-around. If you use other module to issue the jump to a
named location, bad things could still happen (or in your words, evil
stuffs). For example, ngx_upload's upload_pass directive or the core
module's post_action directive.

I've already posted a patch for the nginx core to the nginx-devel
mailing list, which fixes the issue completely:

    http://mailman.nginx.org/pipermail/nginx-devel/2011-October/001327.html

That patch can also be applied cleanly to nginx 1.0.8 (at least).

BTW, this patch has already been incorporated into the ngx_openresty
1.0.8.5 devel release: http://openresty.org/#Download

Regards,
-agentzh