#!/usr/bin/perl -w use strict; use HTTP::Proxy; use HTTP::Proxy::HeaderFilter::simple; use HTTP::Proxy::BodyFilter::simple; use CGI::Util qw( unescape ); # get the command-line parameters my %args = ( peek => [], header => [], mime => 'text/*', ); { my $args = '(' . join( '|', keys %args ) . ')'; for ( my $i = 0 ; $i < @ARGV ; $i += 2 ) { if ( $ARGV[$i] =~ /$args/o ) { if ( ref $args{$1} ) { push @{ $args{$1} }, $ARGV[ $i + 1 ]; } else { $args{$1} = $ARGV[ $i + 1 ]; } splice( @ARGV, $i, 2 ); redo if $i < @ARGV; } } } # the headers we want to see my @srv_hdr = ( qw( Content-Type Set-Cookie Set-Cookie2 WWW-Authenticate Location ), @{ $args{header} } ); my @clt_hdr = ( qw( Cookie Cookie2 Referer Referrer Authorization ), @{ $args{header} } ); # NOTE: Body request filters always receive the request body in one pass my $post_filter = HTTP::Proxy::BodyFilter::simple->new( begin => sub { $_[0]->{binary} = 0; }, filter => sub { my ( $self, $dataref, $message, $protocol, $buffer ) = @_; print STDOUT "\n", $message->method, " ", $message->uri, "\n"; print_headers( $message, @clt_hdr ); if ( $self->{binary} || $$dataref =~ /\0/ ) { $self->{binary} = 1; print STDOUT " (not printing binary data)\n"; return; } # this is from CGI.pm, method parse_params() my (@pairs) = split( /[&;]/, $$dataref ); for (@pairs) { my ( $param, $value ) = split( '=', $_, 2 ); $param = unescape($param); $value = unescape($value); printf STDOUT " %-20s => %s\n", $param, $value; } } ); my $get_filter = HTTP::Proxy::HeaderFilter::simple->new( sub { my ( $self, $headers, $message ) = @_; my $req = $message->request; if ( $req->method ne 'POST' ) { print STDOUT "\n", $req->method, " ", $req->uri, "\n"; print_headers( $req, @clt_hdr ); } print STDOUT $message->status_line, "\n"; print_headers( $message, @srv_hdr ); } ); sub print_headers { my $message = shift; for my $h (@_) { if ( $message->header($h) ) { print STDOUT " $h: $_\n" for ( $message->header($h) ); } } } # create and start the proxy my $proxy = HTTP::Proxy->new(@ARGV); # if we want to look at SOME sites if (@{$args{peek}}) { for (@{$args{peek}}) { $proxy->push_filter( host => $_, method => 'POST', request => $post_filter ); $proxy->push_filter( host => $_, response => $get_filter, mime => $args{mime}, ); } } # otherwise, peek at all sites else { $proxy->push_filter( method => 'POST', request => $post_filter ); $proxy->push_filter( response => $get_filter, mime => $args{mime} ); } $proxy->start;