in reply to create a HTTP::Response object from a raw buffer?

Sounds to me like you probably want the Net::HTTP::NB module (a non-blocking HTTP client), and especially its read_response_headers method. See the module for example and description, but in a nutshell you can do this:
use Net::HTTP::NB; my $s = Net::HTTP::NB->new( Host => 'www.perlmonks.org' ); $s->write_request( GET => "/" ); my( $code, $msg, %headers ) = $s->read_response_headers;
(However, don't actually do it like that. See the module for a better example.)

jdporter
The 6th Rule of Perl Club is -- There is no Rule #6.