handler before proxy-pass
mdounin at mdounin.ru
Thu May 29 12:29:22 UTC 2014
On Thu, May 29, 2014 at 03:05:15PM +0300, Donatas Abraitis wrote:
> I want to add a custom 'handler', which would update ngx_os_argv on
> request. It should be like this:
> root 18601 0.0 0.0 62272 3812 ? Ss 07:00 0:00 nginx:
> master process /opt/nginx/bin/nginx -c /opt/nginx/etc/nginx.conf
> web 18602 0.0 0.0 70372 7904 ? S 07:00 0:00 \_
> 18.104.22.168 [test.domain.com] GET /ok.php HTTP/1.1??Host
> It works if using only nginx for static content, but if having proxy_pass
> in location directive it doesn't work.
This isn't going to work in any case, as there are multiple
requests in a single worker process.
> Code snippet is like this:
> sprintf(title, "%s [%s] %s", r->connection->addr_text.data,
> r->headers_in.server.data, r->request_line.data);
> memcpy(ngx_os_argv, title, MAXBUF);
> return NGX_DECLINED;
> Question is, how to solve this problem to update ngx_os_argv if using
> together with proxy_pass? Seems it bypass my 'handler' if using proxy_pass.
> Maybe there is some kind of sequence of loading modules?
>From what you write it looks like you've installed your code as a
content handler. You should instead use something like postread
phase handler, see e.g. realip module for an example. But, well,
it's not going to work anyway, see above.
More information about the nginx-devel