Plack-Middleware-Watermark is a project mainly written in Perl, it's free.
Add watermark to response body
NAME Plack::Middleware::Watermark - Add watermark to response body
SYNOPSIS use Plack::Builder; my $app = sub { [ 200, [ 'Content-Type' => 'text/html' ], [ "Hello World " ] ] }; builder { enable 'Watermark', comment => 'generated on my server'; $app; }
# Hello World
# <!-- generated on my server -->
DESCRIPTION The watermark middleware offers appending some string to response body as comment.
OPTIONS comment Specify comment string or subroutine returning some string.
builder {
enable 'Watermark', comment => sub { 'Generated by ' . Sys::Hostname::hostname };
$app;
}
AUTHOR Hiroshi Sakai [email protected]
COPYRIGHT Copyright (C) 2010 Six Apart, Ltd. All rights reserved.
LICENSE This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.