I am looking for a solution to make Apache logfiles available to shared hosting in a scure manner and in real-time. I am running Apache 2.2 on Debian and have Apache configured to keep separate access- and error-logs for each virtualhost in a common directory, i.e. /var/log/apache2, the logfiles are owned by root.adm and have 640 permission.
Right now I have a hacky solution which uses a hourly cronjob to copy the logfiles of all virtualhosts to another directory which is read-only to the user a custom CGI-script runs as. This CGI-script then matches an authenticated user to the virtualhosts he/she owns and offers the logfiles of these virtualhosts for download. This is bad because I need to keep a separate table for matching authenticated users to their virtualhosts and the logs are only updated every hour.