aioquic

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What is aioquic?

aioquic is a library for the QUIC network protocol in Python. It features a minimal TLS 1.3 implementation, a QUIC stack and an HTTP/3 stack.

aioquic is used by Python opensource projects such as dnspython, hypercorn, mitmproxy_ and the Web Platform Tests_ cross-browser test suite. It has also been used extensively in research papers about QUIC.

To learn more about aioquic please read the documentation_.

Why should I use aioquic?

aioquic has been designed to be embedded into Python client and server libraries wishing to support QUIC and / or HTTP/3. The goal is to provide a common codebase for Python libraries in the hope of avoiding duplicated effort.

Both the QUIC and the HTTP/3 APIs follow the "bring your own I/O" pattern, leaving actual I/O operations to the API user. This approach has a number of advantages including making the code testable and allowing integration with different concurrency models.

A lot of effort has gone into writing an extensive test suite for the aioquic code to ensure best-in-class code quality, and it is regularly tested for interoperability_ against other QUIC implementations_.

Features

• minimal TLS 1.3 implementation conforming with RFC 8446_
• QUIC stack conforming with RFC 9000_ (QUIC v1) and RFC 9369_ (QUIC v2)
  • IPv4 and IPv6 support
  • connection migration and NAT rebinding
  • logging TLS traffic secrets
  • logging QUIC events in QLOG format
  • version negotiation conforming with RFC 9368_
• HTTP/3 stack conforming with RFC 9114_
  • server push support
  • WebSocket bootstrapping conforming with RFC 9220_
  • datagram support conforming with RFC 9297_

Installing

The easiest way to install aioquic is to run:

.. code:: bash

pip install aioquic

Building from source

If there are no wheels for your system or if you wish to build aioquic from source you will need the OpenSSL development headers.

Linux .....

On Debian/Ubuntu run:

.. code-block:: console

sudo apt install libssl-dev python3-dev

On Alpine Linux run:

.. code-block:: console

sudo apk add openssl-dev python3-dev bsd-compat-headers libffi-dev

OS X ....

On OS X run:

.. code-block:: console

brew install openssl

You will need to set some environment variables to link against OpenSSL:

.. code-block:: console

export CFLAGS=-I$(brew --prefix openssl)/include export LDFLAGS=-L$(brew --prefix openssl)/lib

Windows .......

On Windows the easiest way to install OpenSSL is to use Chocolatey_.

.. code-block:: console

choco install openssl

You will need to set some environment variables to link against OpenSSL:

.. code-block:: console

$Env:INCLUDE = "C:\Progra1\OpenSSL\include" $Env:LIB = "C:\Progra1\OpenSSL\lib"

Running the examples

aioquic comes with a number of examples illustrating various QUIC usecases.

You can browse these examples here: https://github.com/aiortc/aioquic/tree/main/examples

License

aioquic is released under the BSD license_.

.. _read the documentation: https://aioquic.readthedocs.io/en/latest/ .. _dnspython: https://github.com/rthalley/dnspython .. _hypercorn: https://github.com/pgjones/hypercorn .. _mitmproxy: https://github.com/mitmproxy/mitmproxy .. _Web Platform Tests: https://github.com/web-platform-tests/wpt .. _tested for interoperability: https://interop.seemann.io/ .. _QUIC implementations: https://github.com/quicwg/base-drafts/wiki/Implementations .. _cryptography: https://cryptography.io/ .. _Chocolatey: https://chocolatey.org/ .. _BSD license: https://aioquic.readthedocs.io/en/latest/license.html .. _RFC 8446: https://datatracker.ietf.org/doc/html/rfc8446 .. _RFC 9000: https://datatracker.ietf.org/doc/html/rfc9000 .. _RFC 9114: https://datatracker.ietf.org/doc/html/rfc9114 .. _RFC 9220: https://datatracker.ietf.org/doc/html/rfc9220 .. _RFC 9297: https://datatracker.ietf.org/doc/html/rfc9297 .. _RFC 9368: https://datatracker.ietf.org/doc/html/rfc9368 .. _RFC 9369: https://datatracker.ietf.org/doc/html/rfc9369