| Protocol::HTTP2(3pm) | User Contributed Perl Documentation | Protocol::HTTP2(3pm) |
Protocol::HTTP2 - HTTP/2 protocol implementation (RFC 7540)
use Protocol::HTTP2;
# get protocol identification string for secure connections
print Protocol::HTTP2::ident_tls; # h2
# get protocol identification string for non-secure connections
print Protocol::HTTP2::ident_plain; # h2c
Protocol::HTTP2 is HTTP/2 protocol implementation (RFC 7540 <https://tools.ietf.org/html/rfc7540>) with stateful decoders/encoders of HTTP/2 frames. You may use this module to implement your own HTTP/2 client/server/intermediate on top of your favorite event loop over plain or tls socket (see examples).
Current status - beta. Structures, module names and methods seems like stable. I've started this project to understand internals of HTTP/2 and may be it will never become production, but at least it works.
| Spec | status |
| ----------------------- | --------------- |
| Negotiation | ALPN, NPN, |
| | Upgrade, direct |
| Preface | + |
| Headers (de)compression | + |
| Stream states | + |
| Flow control | X |
| Stream priority | X |
| Server push | + |
| Connect method | - |
| Frame | encoder | decoder |
| --------------- |:-------:|:-------:|
| DATA | X | + |
| HEADERS | + | + |
| PRIORITY | + | + |
| RST_STREAM | + | + |
| SETTINGS | + | + |
| PUSH_PROMISE | + | + |
| PING | + | + |
| GOAWAY | + | + |
| WINDOW_UPDATE | + | + |
| CONTINUATION | X | + |
Client protocol decoder/encoder with constructor of requests
Server protocol decoder/encoder with constructor of responses/pushes
Main low level module for protocol logic and state processing. Connection object is a mixin of Protocol::HTTP2::Frame (frame encoding/decoding), Protocol::HTTP2::Stream (stream operations) and Protocol::HTTP2::Upgrade (HTTP/1.1 Upgrade support)
Module implements HPACK - Header Compression for HTTP/2 (RFC 7541 <https://tools.ietf.org/html/rfc7541>).
Module contains all defined in HTTP/2 protocol constants and default values
Module for debugging. You can setup HTTP2_DEBUG environment variable to change verbosity of the module (output to STDOUT). Default level is error.
$ export HTTP2_DEBUG=debug
$ perl ./http2_program
<https://github.com/vlet/p5-Protocol-HTTP2/wiki> - Protocol::HTTP2 wiki
<http://http2.github.io/> - official HTTP/2 specification site
<http://daniel.haxx.se/http2/> - http2 explained
Copyright (C) Vladimir Lettiev.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Vladimir Lettiev <thecrux@gmail.com>
| 2022-12-04 | perl v5.36.0 |