mod_browser.cfile, and is compiled in by default with Apache 1.2 and above. It provides for setting environment variables based on the browser.
This module allows you to set environment variables based on the name of
the browser accessing your document, based on the
header field. This is especially useful when combined with a conditional
HTML language such as XSSI or PHP, and
can provide for simple browser-based negotiation of HTML features.
The BrowserMatch directive defines environment variables based on the
header. The first argument should be a POSIX.2 extended regular
expression (similar to an egrep-style regex). The rest of the arguments
give names of variables to set. These take the form of either
varname=value". In the first form, the value will be set
to "1". The second will remove the given variable if already defined,
and the third will set the variable to the value given by
value. If a User-Agent
string matches more than one entry, they will
be merged. Entries are processed in the order they appear, and later
entries can override earlier ones.
BrowserMatchNoCase directive is semantically identical to
directive. However, it provides for case-insensitive matching. For
BrowserMatchNoCase mac platform=macintosh BrowserMatchNoCase win platform=windows