Description:

Emulate the CERN HTTPD Meta file semantics. Meta files are HTTP
headers that can be output in addition to the normal range of headers
for each file accessed. They appear rather like the Apache .asis
files, and are able to provide a crude way of influencing the Expires:
header, as well as providing other curiosities. There are many ways to
manage meta information, this one was chosen because there is already
a large number of CERN users who can exploit this module.