#!/usr/bin/perl			-*- perl -*-
#
# uainclude -- Conditionally include a file based on the User-Agent
#              of the browser
#
# Author: Joey Gibson <joey@joeygibson.com>
# Version: $Id: uainclude,v 1.2 2003/03/02 04:36:45 jgibson Exp $
#
# History:
# $Log: uainclude,v $
# Revision 1.2  2003/03/02 04:36:45  jgibson
# Added licenses to google and uainclude.
#
# Revision 1.1.1.1  2003/03/02 04:25:57  jgibson
#
#

package uainclude;

use CGI qw/:standard/;
use FileHandle;

# --- User Variables ---
%file_mapping = ("gecko" => "gecko.css",
				 "IE"    => "ie.css",
				 "lynx"  => "empty.css");

$default_file = "default.css";
# --- End of User Variables ---

$included_content = "";

sub start
{
	1;
}

sub include_file
{
	my ($file_name) = @_;
	my $path_name = $blosxom::datadir . "/" . $file_name;
	my $fh = new FileHandle;
	
	if (-f $path_name)
	{
		$fh->open($path_name);

		foreach my $line (<$fh>)
		{
			$included_content .= $line;
		}
	}
}
	
sub head
{
	my($pkg, $currentdir, $head_ref) = @_;
	
	my $ua = user_agent();
	my $included = 0;
	
	while (my ($regexp, $file_to_include) = each %file_mapping)
	{
		if ($ua =~ /$regexp/i)
		{
			include_file($file_to_include);
			$included = 1;
			
			last;
		}
	}

	include_file($head_ref, $default_file) if (! $included);
	1;
}

sub end
{
	1;
}

1;

=head1 NAME
	
uainclude: Include content based on the User-Agent of the browser.
	
=head1 SYNOPSIS

Purpose: Based on the type of browser in use, include different
content, specifically style sheets, though it could be used
for all sorts of content.

=head1 VERSION

0.1

=head1 USAGE

Regexes can be added to the %file_mapping hash with the values
being the files to load. The file specified is relative to
$blosxom::datadir, and does _not_ need to actually exist. Such
is the case with the entry for "lynx".

=head1 AUTHOR

Joey Gibson <joey@joeygibson.com>, http://www.joeygibson.com

=head1 BUGS

Send bug reports and comments to joey@joeygibson.bom

=head1 LICENSE

uainclude - Blosxom plugin
	
Copyright (C) 2003, Joey Gibson <joey@joeygibson.com>

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files
(the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify,
merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,.
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.