[Nginx] perl module get an empty body

[Maxim Dounin]

Hello!

On Fri, Aug 10, 2012 at 09:44:14AM -0400, darkweaver871 wrote:

> Hi Maxim,
> 
> Thanks for your reply.
> 
> I don't understand what you mean by "content handler" as I'm a noob in
> nginx perl usage (and I'm not sure it was clear enough for you). I
> tested http_content_length but it's empty also.
> I really need to have the calling request body (I deleted the major part
> of my code but I parse some stuff in).
> 
> Let's say I want to return 3 to perl_set if the request body match
> "test" and 4 otherwise (and log it), I would do:

You have to use perl directive to handle request.  Then you'll be 
able to use $r->has_request_body(), see here:

http://nginx.org/en/docs/http/ngx_http_perl_module.html#methods

For conditional processing by other modules you may use 
$r->internal_redirect() method.

> #!/usr/bin/perl
> 
> package switcher_test;
> use nginx;
> use Sys::Syslog;
> 
> my $facility = 'local2';
> 
> sub handler {
>         my $r = shift;
> 
>         openlog('tester', 'ndelay', $facility);
> 
>         $r->has_request_body(sub{});
>         if ($r->request_body =~ /.*test.*/) { return 3 };

This is just wrong: $r->request_body will be only available when 
body handler function is called ("sub{}" in the above code).  
Using it here won't work.

[...]

Maxim Dounin