This is Perl module HTTP::Engine::Middleware.
INSTALLATION
HTTP::Engine::Middleware installation is straightforward. If your CPAN shell is set up,
you should just be able to do
% cpan HTTP::Engine::Middleware
Download it, unpack it, then build it as per the usual:
% perl Makefile.PL
% make && make test
Then install it:
% make install
DOCUMENTATION
HTTP::Engine::Middleware documentation is available as in POD. So you can do:
% perldoc HTTP::Engine::Middleware
to read the documentation online with your favorite pager.
Tokuhiro Matsuno