This is Perl module Amon2::Plugin::Auth.

INSTALLATION

Amon2::Plugin::Auth installation is straightforward. If your CPAN shell is set up,
you should just be able to do

% cpan Amon2::Plugin::Auth

Download it, unpack it, then build it as per the usual:

% perl Makefile.PL
% make && make test

Then install it:

% make install

DOCUMENTATION

Amon2::Plugin::Auth documentation is available as in POD. So you can do:

% perldoc Amon2::Plugin::Auth