#!/usr/bin/perl -w

#  shrink.cgi - invoked from pages generated by makethm
#  Copyright (C) 2000 Fen Labalme
#  Copyright (C) 1999 Ian Goldberg

#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License
#  as published by the Free Software Foundation; either version 2
#  of the License, or (at your option) any later version.

#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.

#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

$q = $ENV{'QUERY_STRING'};

if ($q =~ /^(([\w-]+\/)*[\w\.-]+\.jpg)\/(\d[\d\.]*)$/i) {
    $fname = $1;
    $amt = 1/$3;
    print "Content-type: image/jpeg\r\n\r\n";
    open (P, "/usr/bin/djpeg $fname | /usr/bin/pnmscale $amt | /usr/bin/cjpeg |") or die;
    print <P>;
    close(P);
} else {
    print "Content-type: text/plain\r\n\r\n";
    print "Nice try.\r\n";
}