Re: Content encoding when filtering proxyed pages

[Stas Bekman]

Esteban Fernandez Stafford wrote:
Hello all,

I have a machine acting as a proxy using mod_perl-1.99_09 with apache
2.0.46. This proxy is supposed to filter all html content. So far I
have achieved most of my project's goals. But there is one issue I
can't get straight, this is when the proxy gets a page that is
encoded (like in www.google.com). My first attempt was to DECLINE
filtering such pages, but the $filter-r()-content_encoding() always
gives me 'undef'. Is this something that is not yet implemented or am
I doing something wrong? (See code below) Then I tried looking at
$filter-r()-headers_out()-{'Content-Encoding'} and everything went
just fine!
Looks like it's autogenerated, but probably not working, as I see that the 
corresponding call in the test is commented out:

t/response/TestAPI/request_rec.pm:#content_encoding

Need to check why is it so.

On the other hand, is it possible that I could put mod_deflate before
my filter to get the content already decompressed for my filter to
parse?
Sure, you can do that. the mp2 test suite has examples of how to do that 
(besides the normal apache docs).

   Thanks a lot in advance

I would like to thank the mod_perl community for mod_perl, it has made
the development of this project fun! And it has kept me from having to
go back to C programming. It was a long time since I last did that.
thanks for the kind words ;)

__
Stas BekmanJAm_pH -- Just Another mod_perl Hacker
http://stason.org/ mod_perl Guide --- http://perl.apache.org
mailto:[EMAIL PROTECTED] http://use.perl.org http://apacheweek.com
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Content encoding when filtering proxyed pages

[Esteban Fernandez Stafford]

Hello all,

I have a machine acting as a proxy using mod_perl-1.99_09 with apache
2.0.46. This proxy is supposed to filter all html content. So far I
have achieved most of my project's goals. But there is one issue I
can't get straight, this is when the proxy gets a page that is
encoded (like in www.google.com). My first attempt was to DECLINE
filtering such pages, but the $filter-r()-content_encoding() always
gives me 'undef'. Is this something that is not yet implemented or am
I doing something wrong? (See code below) Then I tried looking at
$filter-r()-headers_out()-{'Content-Encoding'} and everything went
just fine!

On the other hand, is it possible that I could put mod_deflate before
my filter to get the content already decompressed for my filter to
parse?

   Thanks a lot in advance

I would like to thank the mod_perl community for mod_perl, it has made
the development of this project fun! And it has kept me from having to
go back to C programming. It was a long time since I last did that.


package WTG::HtmlFilter;

use strict;
use warnings;# FATAL = 'all';

use Apache::RequestRec ();
use Apache::RequestIO ();

use APR::Brigade ();
use APR::Bucket ();

use base qw(Apache::Filter);

use Apache::Const -compile = qw(OK M_POST);
use APR::Const -compile = ':common';

use constant READ_SIZE  = 1024;

use HTML::Parser ();

sub handler : FilterRequestHandler
{
   my $filter = shift;
   my $parser;

   # Initialize parser if not already done
   unless ($parser = $filter-ctx)
   {
  # This is the first call of the filter for a particular request
  # Can we filter this request?
  my $type = $filter-r()-content_type();
  if(! defined $type || $type !~ /^text\/html\b/)
  {
 $filter-remove();
 return Apache::DECLINED;
  }
  # This line gives me undefined
  print STDERR $filter-r()-content_type(), \n;

blah... blah... blah...


   E s  t  eb  a n!


:wq



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