Re: List of all request headers in perl?

I’m very confused… there’s not an “$r” to be seen at that link.
Perhaps I asked the original question poorly, or in the wrong place?

Thanks again,
Eric

On Mon, Dec 17, 2012 at 7:38 PM, Bob S. [email protected] wrote:

This may help:

View HTTP Request and Response Header

On Mon, Dec 17, 2012 at 5:29 PM, E. Westbrook [email protected]
wrote:

Hi!

I'm new to the list; so please accept my apologies and do kindly
correct me if I've missed something in my research, or if I'm not
complying with any particular social custom or etiquette on this 

list.

I'm using nginx's integrated perl support, and all is going well so
far, but I'm missing one critical thing right now:  a way to get a
list of all of the request headers.

I can certainly use $r->header_in() to obtain any given specific
header, which works well if I know the header in advance -- but in
my case I need to iterate all of the incoming request headers, even
(especially, actually) headers whose presence I would not have
anticipated.

I do see some references to Nginx modules on CPAN, and in at least
one of those, a $r->headers_in() method...  but those modules are
not the same animal as the built-in "nginx" module, are they.

Please help!

Thanks,
Eric

You’re right the Nginx modules on CPAN are not related. Sorry I don’t
have
a setup in front of me but isn’t $r->args some data structure that may
contain the request headers? Can you iterate thru it or incorporate
Data::Dumper to see what it contains? Check the source code of the
embedded
perl module to see what is implemented?

Thanks for the thought! Unfortunately, I don’t think that helps.

The $r-args() function seems to only return data from the GET-style
query parameters (if any).

As for the source module (at least, the nginx.pm file), it seems to be
just constants, declarations, definitions and such, but no actual code.
I presume it’s all in some kind of XS stuff, which I’m sure could be
further dissected if needed. I suppose I might end up going that way if
all else fails, in hopes it might reveal some clever API usage that
would work.

But that feels more to me like an effort would seem to be heading in the
direction of developing a patch – which might be great (for someone
other than me, too) – but it also might represent a level of
development and maintenance effort far greater than simply switching to
a different (and lesser in some ways) implementation.

Indeed, I’m hoping someone just knows of a way using the perl API just
as it is, maybe just not thoroughly documented or easy to find. After
all, I’m just trying to list the request’s headers! Isn’t that a pretty
basic operation?

Thanks again,
Eric

On Tue, Dec 18, 2012 at 7:11 AM, Harold Sinclair
[email protected] wrote:

You're right the Nginx modules on CPAN are not related. Sorry I
don't have a setup in front of me but isn't $r->args some data
structure that may contain the request headers? Can you iterate thru
it or incorporate Data::Dumper to see what it contains? Check the
source code of the embedded perl module to see what is implemented?

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