Linux, Apache script (PHP,Perl,Bash etc.)
We need script that if started on Linux with apache user, it will install filter on the whole apache or Linux 80 port, so all webpages are served with additional HTML code inserted in front of the whole html code.
Example:
Sample Page source:
<html>
Source Code here
</html>
Apache serving:
<our_html_code>
<html>
Source Code here
</html>
Any others ideas are welcome for implementations.