#!/usr/bin/perl -w
use strict;
use HTTP::Proxy qw/:log/;
use HTTP::Headers ;
use HTTP::Proxy::HeaderFilter;
# Variable init
my $host = undef;
my $port = 80;
my $log_file = "/tmp/proxy.log";
my $localhost = "proxy_host"; # the host where proxy is running
my $remotehost = "forwarded_host";
my $agent_timeout = 10;
sub search_credentials {
my($iv_user,$iv_group) = @_;
my($ht_user,$ht_passwd);
# do some userid mapping funk
# test example
$ht_user = 'username';
$ht_passwd = 'password';
return ($ht_user,$ht_passwd);
}
open(LOG,">>", $log_file);
my $proxy = HTTP::Proxy->new;
$proxy->port($port);
$proxy->host($host);
$proxy->logfh(*LOG);
#$proxy->logmask(STATUS | PROCESS ); # Normal logging
$proxy->logmask(STATUS | PROCESS | HEADERS | FILTER); # Debug logging
my $filter = HTTP::Proxy::HeaderFilter->new(
sub {
my ( $self, $headers, $message ) = @_;
my $get_uri = $message->$headers->uri();
print "Unaltered URI: $get_uri\n";
my $iv_user = $message->$headers->header('iv-user');
my $iv_group = $message->$headers->header('iv-group');
my($ht_user,$ht_passwd) = search_credentials($iv_user,$iv_group);
$message->$headers->authorization_basic($ht_user,$ht_passwd);
$get_uri =~ s/$localhost/$remotehost/ if $get_uri =~ m/$localhost/ ;
$get_uri =~ s?^/?http://$remotehost/? if $get_uri =~ m%^/% ;
print "Altered URI: $get_uri\n";
$message->$headers->uri($get_uri);
}
);
$proxy->push_filter(request => $filter);
# this is the mainloop
$proxy->start;
####
[Wed Dec 15 13:51:39 2004] (10600) Request: GET http://192.168.252.209/index.html
[Wed Dec 15 13:51:39 2004] (10600) Request: Via: 0.9 amano (HTTP::Proxy/0.13)
[Wed Dec 15 13:51:39 2004] (10600) Request: Authorization: Basic YWRtaW46bmFsaWIxNTk=
##
##
[Wed Dec 15 15:39:56 2004] (11209) Request: GET /
[Wed Dec 15 15:39:57 2004] (11209) Response: 501 Not Implemented