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Metadata-Version: 2.1
Name: PyNaCl
Version: 1.5.0
Summary: Python binding to the Networking and Cryptography (NaCl) library
Home-page: https://github.com/pyca/pynacl/
Author: The PyNaCl developers
Author-email: cryptography-dev@python.org
License: Apache License 2.0
Platform: UNKNOWN
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Requires-Python: >=3.6
Requires-Dist: cffi (>=1.4.1)
Provides-Extra: docs
Requires-Dist: sphinx (>=1.6.5) ; extra == 'docs'
Requires-Dist: sphinx-rtd-theme ; extra == 'docs'
Provides-Extra: tests
Requires-Dist: pytest (!=3.3.0,>=3.2.1) ; extra == 'tests'
Requires-Dist: hypothesis (>=3.27.0) ; extra == 'tests'
===============================================
PyNaCl: Python binding to the libsodium library
===============================================
.. image:: https://img.shields.io/pypi/v/pynacl.svg
:target: https://pypi.org/project/PyNaCl/
:alt: Latest Version
.. image:: https://codecov.io/github/pyca/pynacl/coverage.svg?branch=main
:target: https://codecov.io/github/pyca/pynacl?branch=main
.. image:: https://img.shields.io/pypi/pyversions/pynacl.svg
:target: https://pypi.org/project/PyNaCl/
:alt: Compatible Python Versions
PyNaCl is a Python binding to `libsodium`_, which is a fork of the
`Networking and Cryptography library`_. These libraries have a stated goal of
improving usability, security and speed. It supports Python 3.6+ as well as
PyPy 3.
.. _libsodium: https://github.com/jedisct1/libsodium
.. _Networking and Cryptography library: https://nacl.cr.yp.to/
Features
--------
* Digital signatures
* Secret-key encryption
* Public-key encryption
* Hashing and message authentication
* Password based key derivation and password hashing
`Changelog`_
------------
.. _Changelog: https://pynacl.readthedocs.io/en/stable/changelog/
Installation
============
Binary wheel install
--------------------
PyNaCl ships as a binary wheel on macOS, Windows and Linux ``manylinux1`` [#many]_ ,
so all dependencies are included. Make sure you have an up-to-date pip
and run:
.. code-block:: console
$ pip install pynacl
Faster wheel build
------------------
You can define the environment variable ``LIBSODIUM_MAKE_ARGS`` to pass arguments to ``make``
and enable `parallelization`_:
.. code-block:: console
$ LIBSODIUM_MAKE_ARGS=-j4 pip install pynacl
Linux source build
------------------
PyNaCl relies on `libsodium`_, a portable C library. A copy is bundled
with PyNaCl so to install you can run:
.. code-block:: console
$ pip install pynacl
If you'd prefer to use the version of ``libsodium`` provided by your
distribution, you can disable the bundled copy during install by running:
.. code-block:: console
$ SODIUM_INSTALL=system pip install pynacl
.. warning:: Usage of the legacy ``easy_install`` command provided by setuptools
is generally discouraged, and is completely unsupported in PyNaCl's case.
.. _parallelization: https://www.gnu.org/software/make/manual/html_node/Parallel.html
.. _libsodium: https://github.com/jedisct1/libsodium
.. [#many] `manylinux1 wheels <https://www.python.org/dev/peps/pep-0513/>`_
are built on a baseline linux environment based on Centos 5.11
and should work on most x86 and x86_64 glibc based linux environments.
Changelog
=========
1.5.0 (2022-01-07)
------------------
* **BACKWARDS INCOMPATIBLE:** Removed support for Python 2.7 and Python 3.5.
* **BACKWARDS INCOMPATIBLE:** We no longer distribute ``manylinux1``
wheels.
* Added ``manylinux2014``, ``manylinux_2_24``, ``musllinux``, and macOS
``universal2`` wheels (the latter supports macOS ``arm64``).
* Update ``libsodium`` to 1.0.18-stable (July 25, 2021 release).
* Add inline type hints.
1.4.0 (2020-05-25)
------------------
* Update ``libsodium`` to 1.0.18.
* **BACKWARDS INCOMPATIBLE:** We no longer distribute 32-bit ``manylinux1``
wheels. Continuing to produce them was a maintenance burden.
* Added support for Python 3.8, and removed support for Python 3.4.
* Add low level bindings for extracting the seed and the public key
from crypto_sign_ed25519 secret key
* Add low level bindings for deterministic random generation.
* Add ``wheel`` and ``setuptools`` setup_requirements in ``setup.py`` (#485)
* Fix checks on very slow builders (#481, #495)
* Add low-level bindings to ed25519 arithmetic functions
* Update low-level blake2b state implementation
* Fix wrong short-input behavior of SealedBox.decrypt() (#517)
* Raise CryptPrefixError exception instead of InvalidkeyError when trying
to check a password against a verifier stored in a unknown format (#519)
* Add support for minimal builds of libsodium. Trying to call functions
not available in a minimal build will raise an UnavailableError
exception. To compile a minimal build of the bundled libsodium, set
the SODIUM_INSTALL_MINIMAL environment variable to any non-empty
string (e.g. ``SODIUM_INSTALL_MINIMAL=1``) for setup.
1.3.0 2018-09-26
----------------
* Added support for Python 3.7.
* Update ``libsodium`` to 1.0.16.
* Run and test all code examples in PyNaCl docs through sphinx's
doctest builder.
* Add low-level bindings for chacha20-poly1305 AEAD constructions.
* Add low-level bindings for the chacha20-poly1305 secretstream constructions.
* Add low-level bindings for ed25519ph pre-hashed signing construction.
* Add low-level bindings for constant-time increment and addition
on fixed-precision big integers represented as little-endian
byte sequences.
* Add low-level bindings for the ISO/IEC 7816-4 compatible padding API.
* Add low-level bindings for libsodium's crypto_kx... key exchange
construction.
* Set hypothesis deadline to None in tests/test_pwhash.py to avoid
incorrect test failures on slower processor architectures. GitHub
issue #370
1.2.1 - 2017-12-04
------------------
* Update hypothesis minimum allowed version.
* Infrastructure: add proper configuration for readthedocs builder
runtime environment.
1.2.0 - 2017-11-01
------------------
* Update ``libsodium`` to 1.0.15.
* Infrastructure: add jenkins support for automatic build of
``manylinux1`` binary wheels
* Added support for ``SealedBox`` construction.
* Added support for ``argon2i`` and ``argon2id`` password hashing constructs
and restructured high-level password hashing implementation to expose
the same interface for all hashers.
* Added support for 128 bit ``siphashx24`` variant of ``siphash24``.
* Added support for ``from_seed`` APIs for X25519 keypair generation.
* Dropped support for Python 3.3.
1.1.2 - 2017-03-31
------------------
* reorder link time library search path when using bundled
libsodium
1.1.1 - 2017-03-15
------------------
* Fixed a circular import bug in ``nacl.utils``.
1.1.0 - 2017-03-14
------------------
* Dropped support for Python 2.6.
* Added ``shared_key()`` method on ``Box``.
* You can now pass ``None`` to ``nonce`` when encrypting with ``Box`` or
``SecretBox`` and it will automatically generate a random nonce.
* Added support for ``siphash24``.
* Added support for ``blake2b``.
* Added support for ``scrypt``.
* Update ``libsodium`` to 1.0.11.
* Default to the bundled ``libsodium`` when compiling.
* All raised exceptions are defined mixing-in
``nacl.exceptions.CryptoError``
1.0.1 - 2016-01-24
------------------
* Fix an issue with absolute paths that prevented the creation of wheels.
1.0 - 2016-01-23
----------------
* PyNaCl has been ported to use the new APIs available in cffi 1.0+.
Due to this change we no longer support PyPy releases older than 2.6.
* Python 3.2 support has been dropped.
* Functions to convert between Ed25519 and Curve25519 keys have been added.
0.3.0 - 2015-03-04
------------------
* The low-level API (`nacl.c.*`) has been changed to match the
upstream NaCl C/C++ conventions (as well as those of other NaCl bindings).
The order of arguments and return values has changed significantly. To
avoid silent failures, `nacl.c` has been removed, and replaced with
`nacl.bindings` (with the new argument ordering). If you have code which
calls these functions (e.g. `nacl.c.crypto_box_keypair()`), you must review
the new docstrings and update your code/imports to match the new
conventions.

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# don't import any costly modules
import os
import sys
report_url = (
"https://github.com/pypa/setuptools/issues/new?template=distutils-deprecation.yml"
)
def warn_distutils_present():
if 'distutils' not in sys.modules:
return
import warnings
warnings.warn(
"Distutils was imported before Setuptools, but importing Setuptools "
"also replaces the `distutils` module in `sys.modules`. This may lead "
"to undesirable behaviors or errors. To avoid these issues, avoid "
"using distutils directly, ensure that setuptools is installed in the "
"traditional way (e.g. not an editable install), and/or make sure "
"that setuptools is always imported before distutils."
)
def clear_distutils():
if 'distutils' not in sys.modules:
return
import warnings
warnings.warn(
"Setuptools is replacing distutils. Support for replacing "
"an already imported distutils is deprecated. In the future, "
"this condition will fail. "
f"Register concerns at {report_url}"
)
mods = [
name
for name in sys.modules
if name == "distutils" or name.startswith("distutils.")
]
for name in mods:
del sys.modules[name]
def enabled():
"""
Allow selection of distutils by environment variable.
"""
which = os.environ.get('SETUPTOOLS_USE_DISTUTILS', 'local')
if which == 'stdlib':
import warnings
warnings.warn(
"Reliance on distutils from stdlib is deprecated. Users "
"must rely on setuptools to provide the distutils module. "
"Avoid importing distutils or import setuptools first, "
"and avoid setting SETUPTOOLS_USE_DISTUTILS=stdlib. "
f"Register concerns at {report_url}"
)
return which == 'local'
def ensure_local_distutils():
import importlib
clear_distutils()
# With the DistutilsMetaFinder in place,
# perform an import to cause distutils to be
# loaded from setuptools._distutils. Ref #2906.
with shim():
importlib.import_module('distutils')
# check that submodules load as expected
core = importlib.import_module('distutils.core')
assert '_distutils' in core.__file__, core.__file__
assert 'setuptools._distutils.log' not in sys.modules
def do_override():
"""
Ensure that the local copy of distutils is preferred over stdlib.
See https://github.com/pypa/setuptools/issues/417#issuecomment-392298401
for more motivation.
"""
if enabled():
warn_distutils_present()
ensure_local_distutils()
class _TrivialRe:
def __init__(self, *patterns) -> None:
self._patterns = patterns
def match(self, string):
return all(pat in string for pat in self._patterns)
class DistutilsMetaFinder:
def find_spec(self, fullname, path, target=None):
# optimization: only consider top level modules and those
# found in the CPython test suite.
if path is not None and not fullname.startswith('test.'):
return None
method_name = 'spec_for_{fullname}'.format(**locals())
method = getattr(self, method_name, lambda: None)
return method()
def spec_for_distutils(self):
if self.is_cpython():
return None
import importlib
import importlib.abc
import importlib.util
try:
mod = importlib.import_module('setuptools._distutils')
except Exception:
# There are a couple of cases where setuptools._distutils
# may not be present:
# - An older Setuptools without a local distutils is
# taking precedence. Ref #2957.
# - Path manipulation during sitecustomize removes
# setuptools from the path but only after the hook
# has been loaded. Ref #2980.
# In either case, fall back to stdlib behavior.
return None
class DistutilsLoader(importlib.abc.Loader):
def create_module(self, spec):
mod.__name__ = 'distutils'
return mod
def exec_module(self, module):
pass
return importlib.util.spec_from_loader(
'distutils', DistutilsLoader(), origin=mod.__file__
)
@staticmethod
def is_cpython():
"""
Suppress supplying distutils for CPython (build and tests).
Ref #2965 and #3007.
"""
return os.path.isfile('pybuilddir.txt')
def spec_for_pip(self):
"""
Ensure stdlib distutils when running under pip.
See pypa/pip#8761 for rationale.
"""
if sys.version_info >= (3, 12) or self.pip_imported_during_build():
return
clear_distutils()
self.spec_for_distutils = lambda: None
@classmethod
def pip_imported_during_build(cls):
"""
Detect if pip is being imported in a build script. Ref #2355.
"""
import traceback
return any(
cls.frame_file_is_setup(frame) for frame, line in traceback.walk_stack(None)
)
@staticmethod
def frame_file_is_setup(frame):
"""
Return True if the indicated frame suggests a setup.py file.
"""
# some frames may not have __file__ (#2940)
return frame.f_globals.get('__file__', '').endswith('setup.py')
def spec_for_sensitive_tests(self):
"""
Ensure stdlib distutils when running select tests under CPython.
python/cpython#91169
"""
clear_distutils()
self.spec_for_distutils = lambda: None
sensitive_tests = (
[
'test.test_distutils',
'test.test_peg_generator',
'test.test_importlib',
]
if sys.version_info < (3, 10)
else [
'test.test_distutils',
]
)
for name in DistutilsMetaFinder.sensitive_tests:
setattr(
DistutilsMetaFinder,
f'spec_for_{name}',
DistutilsMetaFinder.spec_for_sensitive_tests,
)
DISTUTILS_FINDER = DistutilsMetaFinder()
def add_shim():
DISTUTILS_FINDER in sys.meta_path or insert_shim()
class shim:
def __enter__(self) -> None:
insert_shim()
def __exit__(self, exc: object, value: object, tb: object) -> None:
_remove_shim()
def insert_shim():
sys.meta_path.insert(0, DISTUTILS_FINDER)
def _remove_shim():
try:
sys.meta_path.remove(DISTUTILS_FINDER)
except ValueError:
pass
if sys.version_info < (3, 12):
# DistutilsMetaFinder can only be disabled in Python < 3.12 (PEP 632)
remove_shim = _remove_shim

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__import__('_distutils_hack').do_override()

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# This is a stub package designed to roughly emulate the _yaml
# extension module, which previously existed as a standalone module
# and has been moved into the `yaml` package namespace.
# It does not perfectly mimic its old counterpart, but should get
# close enough for anyone who's relying on it even when they shouldn't.
import yaml
# in some circumstances, the yaml module we imoprted may be from a different version, so we need
# to tread carefully when poking at it here (it may not have the attributes we expect)
if not getattr(yaml, '__with_libyaml__', False):
from sys import version_info
exc = ModuleNotFoundError if version_info >= (3, 6) else ImportError
raise exc("No module named '_yaml'")
else:
from yaml._yaml import *
import warnings
warnings.warn(
'The _yaml extension module is now located at yaml._yaml'
' and its location is subject to change. To use the'
' LibYAML-based parser and emitter, import from `yaml`:'
' `from yaml import CLoader as Loader, CDumper as Dumper`.',
DeprecationWarning
)
del warnings
# Don't `del yaml` here because yaml is actually an existing
# namespace member of _yaml.
__name__ = '_yaml'
# If the module is top-level (i.e. not a part of any specific package)
# then the attribute should be set to ''.
# https://docs.python.org/3.8/library/types.html
__package__ = ''

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pip

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A. HISTORY OF THE SOFTWARE
==========================
Python was created in the early 1990s by Guido van Rossum at Stichting
Mathematisch Centrum (CWI, see https://www.cwi.nl) in the Netherlands
as a successor of a language called ABC. Guido remains Python's
principal author, although it includes many contributions from others.
In 1995, Guido continued his work on Python at the Corporation for
National Research Initiatives (CNRI, see https://www.cnri.reston.va.us)
in Reston, Virginia where he released several versions of the
software.
In May 2000, Guido and the Python core development team moved to
BeOpen.com to form the BeOpen PythonLabs team. In October of the same
year, the PythonLabs team moved to Digital Creations, which became
Zope Corporation. In 2001, the Python Software Foundation (PSF, see
https://www.python.org/psf/) was formed, a non-profit organization
created specifically to own Python-related Intellectual Property.
Zope Corporation was a sponsoring member of the PSF.
All Python releases are Open Source (see https://opensource.org for
the Open Source Definition). Historically, most, but not all, Python
releases have also been GPL-compatible; the table below summarizes
the various releases.
Release Derived Year Owner GPL-
from compatible? (1)
0.9.0 thru 1.2 1991-1995 CWI yes
1.3 thru 1.5.2 1.2 1995-1999 CNRI yes
1.6 1.5.2 2000 CNRI no
2.0 1.6 2000 BeOpen.com no
1.6.1 1.6 2001 CNRI yes (2)
2.1 2.0+1.6.1 2001 PSF no
2.0.1 2.0+1.6.1 2001 PSF yes
2.1.1 2.1+2.0.1 2001 PSF yes
2.1.2 2.1.1 2002 PSF yes
2.1.3 2.1.2 2002 PSF yes
2.2 and above 2.1.1 2001-now PSF yes
Footnotes:
(1) GPL-compatible doesn't mean that we're distributing Python under
the GPL. All Python licenses, unlike the GPL, let you distribute
a modified version without making your changes open source. The
GPL-compatible licenses make it possible to combine Python with
other software that is released under the GPL; the others don't.
(2) According to Richard Stallman, 1.6.1 is not GPL-compatible,
because its license has a choice of law clause. According to
CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1
is "not incompatible" with the GPL.
Thanks to the many outside volunteers who have worked under Guido's
direction to make these releases possible.
B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON
===============================================================
Python software and documentation are licensed under the
Python Software Foundation License Version 2.
Starting with Python 3.8.6, examples, recipes, and other code in
the documentation are dual licensed under the PSF License Version 2
and the Zero-Clause BSD license.
Some software incorporated into Python is under different licenses.
The licenses are listed with code falling under that license.
PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
--------------------------------------------
1. This LICENSE AGREEMENT is between the Python Software Foundation
("PSF"), and the Individual or Organization ("Licensee") accessing and
otherwise using this software ("Python") in source or binary form and
its associated documentation.
2. Subject to the terms and conditions of this License Agreement, PSF hereby
grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
analyze, test, perform and/or display publicly, prepare derivative works,
distribute, and otherwise use Python alone or in any derivative version,
provided, however, that PSF's License Agreement and PSF's notice of copyright,
i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 Python Software Foundation;
All Rights Reserved" are retained in Python alone or in any derivative version
prepared by Licensee.
3. In the event Licensee prepares a derivative work that is based on
or incorporates Python or any part thereof, and wants to make
the derivative work available to others as provided herein, then
Licensee hereby agrees to include in any such work a brief summary of
the changes made to Python.
4. PSF is making Python available to Licensee on an "AS IS"
basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
INFRINGE ANY THIRD PARTY RIGHTS.
5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
6. This License Agreement will automatically terminate upon a material
breach of its terms and conditions.
7. Nothing in this License Agreement shall be deemed to create any
relationship of agency, partnership, or joint venture between PSF and
Licensee. This License Agreement does not grant permission to use PSF
trademarks or trade name in a trademark sense to endorse or promote
products or services of Licensee, or any third party.
8. By copying, installing or otherwise using Python, Licensee
agrees to be bound by the terms and conditions of this License
Agreement.
BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
-------------------------------------------
BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an
office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the
Individual or Organization ("Licensee") accessing and otherwise using
this software in source or binary form and its associated
documentation ("the Software").
2. Subject to the terms and conditions of this BeOpen Python License
Agreement, BeOpen hereby grants Licensee a non-exclusive,
royalty-free, world-wide license to reproduce, analyze, test, perform
and/or display publicly, prepare derivative works, distribute, and
otherwise use the Software alone or in any derivative version,
provided, however, that the BeOpen Python License is retained in the
Software, alone or in any derivative version prepared by Licensee.
3. BeOpen is making the Software available to Licensee on an "AS IS"
basis. BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND
DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT
INFRINGE ANY THIRD PARTY RIGHTS.
4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE
SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS
AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY
DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
5. This License Agreement will automatically terminate upon a material
breach of its terms and conditions.
6. This License Agreement shall be governed by and interpreted in all
respects by the law of the State of California, excluding conflict of
law provisions. Nothing in this License Agreement shall be deemed to
create any relationship of agency, partnership, or joint venture
between BeOpen and Licensee. This License Agreement does not grant
permission to use BeOpen trademarks or trade names in a trademark
sense to endorse or promote products or services of Licensee, or any
third party. As an exception, the "BeOpen Python" logos available at
http://www.pythonlabs.com/logos.html may be used according to the
permissions granted on that web page.
7. By copying, installing or otherwise using the software, Licensee
agrees to be bound by the terms and conditions of this License
Agreement.
CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
---------------------------------------
1. This LICENSE AGREEMENT is between the Corporation for National
Research Initiatives, having an office at 1895 Preston White Drive,
Reston, VA 20191 ("CNRI"), and the Individual or Organization
("Licensee") accessing and otherwise using Python 1.6.1 software in
source or binary form and its associated documentation.
2. Subject to the terms and conditions of this License Agreement, CNRI
hereby grants Licensee a nonexclusive, royalty-free, world-wide
license to reproduce, analyze, test, perform and/or display publicly,
prepare derivative works, distribute, and otherwise use Python 1.6.1
alone or in any derivative version, provided, however, that CNRI's
License Agreement and CNRI's notice of copyright, i.e., "Copyright (c)
1995-2001 Corporation for National Research Initiatives; All Rights
Reserved" are retained in Python 1.6.1 alone or in any derivative
version prepared by Licensee. Alternately, in lieu of CNRI's License
Agreement, Licensee may substitute the following text (omitting the
quotes): "Python 1.6.1 is made available subject to the terms and
conditions in CNRI's License Agreement. This Agreement together with
Python 1.6.1 may be located on the internet using the following
unique, persistent identifier (known as a handle): 1895.22/1013. This
Agreement may also be obtained from a proxy server on the internet
using the following URL: http://hdl.handle.net/1895.22/1013".
3. In the event Licensee prepares a derivative work that is based on
or incorporates Python 1.6.1 or any part thereof, and wants to make
the derivative work available to others as provided herein, then
Licensee hereby agrees to include in any such work a brief summary of
the changes made to Python 1.6.1.
4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS"
basis. CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND
DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT
INFRINGE ANY THIRD PARTY RIGHTS.
5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1,
OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
6. This License Agreement will automatically terminate upon a material
breach of its terms and conditions.
7. This License Agreement shall be governed by the federal
intellectual property law of the United States, including without
limitation the federal copyright law, and, to the extent such
U.S. federal law does not apply, by the law of the Commonwealth of
Virginia, excluding Virginia's conflict of law provisions.
Notwithstanding the foregoing, with regard to derivative works based
on Python 1.6.1 that incorporate non-separable material that was
previously distributed under the GNU General Public License (GPL), the
law of the Commonwealth of Virginia shall govern this License
Agreement only as to issues arising under or with respect to
Paragraphs 4, 5, and 7 of this License Agreement. Nothing in this
License Agreement shall be deemed to create any relationship of
agency, partnership, or joint venture between CNRI and Licensee. This
License Agreement does not grant permission to use CNRI trademarks or
trade name in a trademark sense to endorse or promote products or
services of Licensee, or any third party.
8. By clicking on the "ACCEPT" button where indicated, or by copying,
installing or otherwise using Python 1.6.1, Licensee agrees to be
bound by the terms and conditions of this License Agreement.
ACCEPT
CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
--------------------------------------------------
Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam,
The Netherlands. All rights reserved.
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the name of Stichting Mathematisch
Centrum or CWI not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
ZERO-CLAUSE BSD LICENSE FOR CODE IN THE PYTHON DOCUMENTATION
----------------------------------------------------------------------
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.

123
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Metadata-Version: 2.3
Name: aiohappyeyeballs
Version: 2.6.1
Summary: Happy Eyeballs for asyncio
License: PSF-2.0
Author: J. Nick Koston
Author-email: nick@koston.org
Requires-Python: >=3.9
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: Natural Language :: English
Classifier: Operating System :: OS Independent
Classifier: Topic :: Software Development :: Libraries
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Classifier: Programming Language :: Python :: 3.13
Classifier: License :: OSI Approved :: Python Software Foundation License
Project-URL: Bug Tracker, https://github.com/aio-libs/aiohappyeyeballs/issues
Project-URL: Changelog, https://github.com/aio-libs/aiohappyeyeballs/blob/main/CHANGELOG.md
Project-URL: Documentation, https://aiohappyeyeballs.readthedocs.io
Project-URL: Repository, https://github.com/aio-libs/aiohappyeyeballs
Description-Content-Type: text/markdown
# aiohappyeyeballs
<p align="center">
<a href="https://github.com/aio-libs/aiohappyeyeballs/actions/workflows/ci.yml?query=branch%3Amain">
<img src="https://img.shields.io/github/actions/workflow/status/aio-libs/aiohappyeyeballs/ci-cd.yml?branch=main&label=CI&logo=github&style=flat-square" alt="CI Status" >
</a>
<a href="https://aiohappyeyeballs.readthedocs.io">
<img src="https://img.shields.io/readthedocs/aiohappyeyeballs.svg?logo=read-the-docs&logoColor=fff&style=flat-square" alt="Documentation Status">
</a>
<a href="https://codecov.io/gh/aio-libs/aiohappyeyeballs">
<img src="https://img.shields.io/codecov/c/github/aio-libs/aiohappyeyeballs.svg?logo=codecov&logoColor=fff&style=flat-square" alt="Test coverage percentage">
</a>
</p>
<p align="center">
<a href="https://python-poetry.org/">
<img src="https://img.shields.io/badge/packaging-poetry-299bd7?style=flat-square&logo=data:image/png;base64,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" alt="Poetry">
</a>
<a href="https://github.com/astral-sh/ruff">
<img src="https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json" alt="Ruff">
</a>
<a href="https://github.com/pre-commit/pre-commit">
<img src="https://img.shields.io/badge/pre--commit-enabled-brightgreen?logo=pre-commit&logoColor=white&style=flat-square" alt="pre-commit">
</a>
</p>
<p align="center">
<a href="https://pypi.org/project/aiohappyeyeballs/">
<img src="https://img.shields.io/pypi/v/aiohappyeyeballs.svg?logo=python&logoColor=fff&style=flat-square" alt="PyPI Version">
</a>
<img src="https://img.shields.io/pypi/pyversions/aiohappyeyeballs.svg?style=flat-square&logo=python&amp;logoColor=fff" alt="Supported Python versions">
<img src="https://img.shields.io/pypi/l/aiohappyeyeballs.svg?style=flat-square" alt="License">
</p>
---
**Documentation**: <a href="https://aiohappyeyeballs.readthedocs.io" target="_blank">https://aiohappyeyeballs.readthedocs.io </a>
**Source Code**: <a href="https://github.com/aio-libs/aiohappyeyeballs" target="_blank">https://github.com/aio-libs/aiohappyeyeballs </a>
---
[Happy Eyeballs](https://en.wikipedia.org/wiki/Happy_Eyeballs)
([RFC 8305](https://www.rfc-editor.org/rfc/rfc8305.html))
## Use case
This library exists to allow connecting with
[Happy Eyeballs](https://en.wikipedia.org/wiki/Happy_Eyeballs)
([RFC 8305](https://www.rfc-editor.org/rfc/rfc8305.html))
when you
already have a list of addrinfo and not a DNS name.
The stdlib version of `loop.create_connection()`
will only work when you pass in an unresolved name which
is not a good fit when using DNS caching or resolving
names via another method such as `zeroconf`.
## Installation
Install this via pip (or your favourite package manager):
`pip install aiohappyeyeballs`
## License
[aiohappyeyeballs is licensed under the same terms as cpython itself.](https://github.com/python/cpython/blob/main/LICENSE)
## Example usage
```python
addr_infos = await loop.getaddrinfo("example.org", 80)
socket = await start_connection(addr_infos)
socket = await start_connection(addr_infos, local_addr_infos=local_addr_infos, happy_eyeballs_delay=0.2)
transport, protocol = await loop.create_connection(
MyProtocol, sock=socket, ...)
# Remove the first address for each family from addr_info
pop_addr_infos_interleave(addr_info, 1)
# Remove all matching address from addr_info
remove_addr_infos(addr_info, "dead::beef::")
# Convert a local_addr to local_addr_infos
local_addr_infos = addr_to_addr_infos(("127.0.0.1",0))
```
## Credits
This package contains code from cpython and is licensed under the same terms as cpython itself.
This package was created with
[Copier](https://copier.readthedocs.io/) and the
[browniebroke/pypackage-template](https://github.com/browniebroke/pypackage-template)
project template.

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Generator: poetry-core 2.1.1
Root-Is-Purelib: true
Tag: py3-none-any

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__version__ = "2.6.1"
from .impl import start_connection
from .types import AddrInfoType, SocketFactoryType
from .utils import addr_to_addr_infos, pop_addr_infos_interleave, remove_addr_infos
__all__ = (
"AddrInfoType",
"SocketFactoryType",
"addr_to_addr_infos",
"pop_addr_infos_interleave",
"remove_addr_infos",
"start_connection",
)

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import asyncio
import contextlib
# PY3.9: Import Callable from typing until we drop Python 3.9 support
# https://github.com/python/cpython/issues/87131
from typing import (
TYPE_CHECKING,
Any,
Awaitable,
Callable,
Iterable,
List,
Optional,
Set,
Tuple,
TypeVar,
Union,
)
_T = TypeVar("_T")
RE_RAISE_EXCEPTIONS = (SystemExit, KeyboardInterrupt)
def _set_result(wait_next: "asyncio.Future[None]") -> None:
"""Set the result of a future if it is not already done."""
if not wait_next.done():
wait_next.set_result(None)
async def _wait_one(
futures: "Iterable[asyncio.Future[Any]]",
loop: asyncio.AbstractEventLoop,
) -> _T:
"""Wait for the first future to complete."""
wait_next = loop.create_future()
def _on_completion(fut: "asyncio.Future[Any]") -> None:
if not wait_next.done():
wait_next.set_result(fut)
for f in futures:
f.add_done_callback(_on_completion)
try:
return await wait_next
finally:
for f in futures:
f.remove_done_callback(_on_completion)
async def staggered_race(
coro_fns: Iterable[Callable[[], Awaitable[_T]]],
delay: Optional[float],
*,
loop: Optional[asyncio.AbstractEventLoop] = None,
) -> Tuple[Optional[_T], Optional[int], List[Optional[BaseException]]]:
"""
Run coroutines with staggered start times and take the first to finish.
This method takes an iterable of coroutine functions. The first one is
started immediately. From then on, whenever the immediately preceding one
fails (raises an exception), or when *delay* seconds has passed, the next
coroutine is started. This continues until one of the coroutines complete
successfully, in which case all others are cancelled, or until all
coroutines fail.
The coroutines provided should be well-behaved in the following way:
* They should only ``return`` if completed successfully.
* They should always raise an exception if they did not complete
successfully. In particular, if they handle cancellation, they should
probably reraise, like this::
try:
# do work
except asyncio.CancelledError:
# undo partially completed work
raise
Args:
----
coro_fns: an iterable of coroutine functions, i.e. callables that
return a coroutine object when called. Use ``functools.partial`` or
lambdas to pass arguments.
delay: amount of time, in seconds, between starting coroutines. If
``None``, the coroutines will run sequentially.
loop: the event loop to use. If ``None``, the running loop is used.
Returns:
-------
tuple *(winner_result, winner_index, exceptions)* where
- *winner_result*: the result of the winning coroutine, or ``None``
if no coroutines won.
- *winner_index*: the index of the winning coroutine in
``coro_fns``, or ``None`` if no coroutines won. If the winning
coroutine may return None on success, *winner_index* can be used
to definitively determine whether any coroutine won.
- *exceptions*: list of exceptions returned by the coroutines.
``len(exceptions)`` is equal to the number of coroutines actually
started, and the order is the same as in ``coro_fns``. The winning
coroutine's entry is ``None``.
"""
loop = loop or asyncio.get_running_loop()
exceptions: List[Optional[BaseException]] = []
tasks: Set[asyncio.Task[Optional[Tuple[_T, int]]]] = set()
async def run_one_coro(
coro_fn: Callable[[], Awaitable[_T]],
this_index: int,
start_next: "asyncio.Future[None]",
) -> Optional[Tuple[_T, int]]:
"""
Run a single coroutine.
If the coroutine fails, set the exception in the exceptions list and
start the next coroutine by setting the result of the start_next.
If the coroutine succeeds, return the result and the index of the
coroutine in the coro_fns list.
If SystemExit or KeyboardInterrupt is raised, re-raise it.
"""
try:
result = await coro_fn()
except RE_RAISE_EXCEPTIONS:
raise
except BaseException as e:
exceptions[this_index] = e
_set_result(start_next) # Kickstart the next coroutine
return None
return result, this_index
start_next_timer: Optional[asyncio.TimerHandle] = None
start_next: Optional[asyncio.Future[None]]
task: asyncio.Task[Optional[Tuple[_T, int]]]
done: Union[asyncio.Future[None], asyncio.Task[Optional[Tuple[_T, int]]]]
coro_iter = iter(coro_fns)
this_index = -1
try:
while True:
if coro_fn := next(coro_iter, None):
this_index += 1
exceptions.append(None)
start_next = loop.create_future()
task = loop.create_task(run_one_coro(coro_fn, this_index, start_next))
tasks.add(task)
start_next_timer = (
loop.call_later(delay, _set_result, start_next) if delay else None
)
elif not tasks:
# We exhausted the coro_fns list and no tasks are running
# so we have no winner and all coroutines failed.
break
while tasks or start_next:
done = await _wait_one(
(*tasks, start_next) if start_next else tasks, loop
)
if done is start_next:
# The current task has failed or the timer has expired
# so we need to start the next task.
start_next = None
if start_next_timer:
start_next_timer.cancel()
start_next_timer = None
# Break out of the task waiting loop to start the next
# task.
break
if TYPE_CHECKING:
assert isinstance(done, asyncio.Task)
tasks.remove(done)
if winner := done.result():
return *winner, exceptions
finally:
# We either have:
# - a winner
# - all tasks failed
# - a KeyboardInterrupt or SystemExit.
#
# If the timer is still running, cancel it.
#
if start_next_timer:
start_next_timer.cancel()
#
# If there are any tasks left, cancel them and than
# wait them so they fill the exceptions list.
#
for task in tasks:
task.cancel()
with contextlib.suppress(asyncio.CancelledError):
await task
return None, None, exceptions

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"""Base implementation."""
import asyncio
import collections
import contextlib
import functools
import itertools
import socket
from typing import List, Optional, Sequence, Set, Union
from . import _staggered
from .types import AddrInfoType, SocketFactoryType
async def start_connection(
addr_infos: Sequence[AddrInfoType],
*,
local_addr_infos: Optional[Sequence[AddrInfoType]] = None,
happy_eyeballs_delay: Optional[float] = None,
interleave: Optional[int] = None,
loop: Optional[asyncio.AbstractEventLoop] = None,
socket_factory: Optional[SocketFactoryType] = None,
) -> socket.socket:
"""
Connect to a TCP server.
Create a socket connection to a specified destination. The
destination is specified as a list of AddrInfoType tuples as
returned from getaddrinfo().
The arguments are, in order:
* ``family``: the address family, e.g. ``socket.AF_INET`` or
``socket.AF_INET6``.
* ``type``: the socket type, e.g. ``socket.SOCK_STREAM`` or
``socket.SOCK_DGRAM``.
* ``proto``: the protocol, e.g. ``socket.IPPROTO_TCP`` or
``socket.IPPROTO_UDP``.
* ``canonname``: the canonical name of the address, e.g.
``"www.python.org"``.
* ``sockaddr``: the socket address
This method is a coroutine which will try to establish the connection
in the background. When successful, the coroutine returns a
socket.
The expected use case is to use this method in conjunction with
loop.create_connection() to establish a connection to a server::
socket = await start_connection(addr_infos)
transport, protocol = await loop.create_connection(
MyProtocol, sock=socket, ...)
"""
if not (current_loop := loop):
current_loop = asyncio.get_running_loop()
single_addr_info = len(addr_infos) == 1
if happy_eyeballs_delay is not None and interleave is None:
# If using happy eyeballs, default to interleave addresses by family
interleave = 1
if interleave and not single_addr_info:
addr_infos = _interleave_addrinfos(addr_infos, interleave)
sock: Optional[socket.socket] = None
# uvloop can raise RuntimeError instead of OSError
exceptions: List[List[Union[OSError, RuntimeError]]] = []
if happy_eyeballs_delay is None or single_addr_info:
# not using happy eyeballs
for addrinfo in addr_infos:
try:
sock = await _connect_sock(
current_loop,
exceptions,
addrinfo,
local_addr_infos,
None,
socket_factory,
)
break
except (RuntimeError, OSError):
continue
else: # using happy eyeballs
open_sockets: Set[socket.socket] = set()
try:
sock, _, _ = await _staggered.staggered_race(
(
functools.partial(
_connect_sock,
current_loop,
exceptions,
addrinfo,
local_addr_infos,
open_sockets,
socket_factory,
)
for addrinfo in addr_infos
),
happy_eyeballs_delay,
)
finally:
# If we have a winner, staggered_race will
# cancel the other tasks, however there is a
# small race window where any of the other tasks
# can be done before they are cancelled which
# will leave the socket open. To avoid this problem
# we pass a set to _connect_sock to keep track of
# the open sockets and close them here if there
# are any "runner up" sockets.
for s in open_sockets:
if s is not sock:
with contextlib.suppress(OSError):
s.close()
open_sockets = None # type: ignore[assignment]
if sock is None:
all_exceptions = [exc for sub in exceptions for exc in sub]
try:
first_exception = all_exceptions[0]
if len(all_exceptions) == 1:
raise first_exception
else:
# If they all have the same str(), raise one.
model = str(first_exception)
if all(str(exc) == model for exc in all_exceptions):
raise first_exception
# Raise a combined exception so the user can see all
# the various error messages.
msg = "Multiple exceptions: {}".format(
", ".join(str(exc) for exc in all_exceptions)
)
# If the errno is the same for all exceptions, raise
# an OSError with that errno.
if isinstance(first_exception, OSError):
first_errno = first_exception.errno
if all(
isinstance(exc, OSError) and exc.errno == first_errno
for exc in all_exceptions
):
raise OSError(first_errno, msg)
elif isinstance(first_exception, RuntimeError) and all(
isinstance(exc, RuntimeError) for exc in all_exceptions
):
raise RuntimeError(msg)
# We have a mix of OSError and RuntimeError
# so we have to pick which one to raise.
# and we raise OSError for compatibility
raise OSError(msg)
finally:
all_exceptions = None # type: ignore[assignment]
exceptions = None # type: ignore[assignment]
return sock
async def _connect_sock(
loop: asyncio.AbstractEventLoop,
exceptions: List[List[Union[OSError, RuntimeError]]],
addr_info: AddrInfoType,
local_addr_infos: Optional[Sequence[AddrInfoType]] = None,
open_sockets: Optional[Set[socket.socket]] = None,
socket_factory: Optional[SocketFactoryType] = None,
) -> socket.socket:
"""
Create, bind and connect one socket.
If open_sockets is passed, add the socket to the set of open sockets.
Any failure caught here will remove the socket from the set and close it.
Callers can use this set to close any sockets that are not the winner
of all staggered tasks in the result there are runner up sockets aka
multiple winners.
"""
my_exceptions: List[Union[OSError, RuntimeError]] = []
exceptions.append(my_exceptions)
family, type_, proto, _, address = addr_info
sock = None
try:
if socket_factory is not None:
sock = socket_factory(addr_info)
else:
sock = socket.socket(family=family, type=type_, proto=proto)
if open_sockets is not None:
open_sockets.add(sock)
sock.setblocking(False)
if local_addr_infos is not None:
for lfamily, _, _, _, laddr in local_addr_infos:
# skip local addresses of different family
if lfamily != family:
continue
try:
sock.bind(laddr)
break
except OSError as exc:
msg = (
f"error while attempting to bind on "
f"address {laddr!r}: "
f"{(exc.strerror or '').lower()}"
)
exc = OSError(exc.errno, msg)
my_exceptions.append(exc)
else: # all bind attempts failed
if my_exceptions:
raise my_exceptions.pop()
else:
raise OSError(f"no matching local address with {family=} found")
await loop.sock_connect(sock, address)
return sock
except (RuntimeError, OSError) as exc:
my_exceptions.append(exc)
if sock is not None:
if open_sockets is not None:
open_sockets.remove(sock)
try:
sock.close()
except OSError as e:
my_exceptions.append(e)
raise
raise
except:
if sock is not None:
if open_sockets is not None:
open_sockets.remove(sock)
try:
sock.close()
except OSError as e:
my_exceptions.append(e)
raise
raise
finally:
exceptions = my_exceptions = None # type: ignore[assignment]
def _interleave_addrinfos(
addrinfos: Sequence[AddrInfoType], first_address_family_count: int = 1
) -> List[AddrInfoType]:
"""Interleave list of addrinfo tuples by family."""
# Group addresses by family
addrinfos_by_family: collections.OrderedDict[int, List[AddrInfoType]] = (
collections.OrderedDict()
)
for addr in addrinfos:
family = addr[0]
if family not in addrinfos_by_family:
addrinfos_by_family[family] = []
addrinfos_by_family[family].append(addr)
addrinfos_lists = list(addrinfos_by_family.values())
reordered: List[AddrInfoType] = []
if first_address_family_count > 1:
reordered.extend(addrinfos_lists[0][: first_address_family_count - 1])
del addrinfos_lists[0][: first_address_family_count - 1]
reordered.extend(
a
for a in itertools.chain.from_iterable(itertools.zip_longest(*addrinfos_lists))
if a is not None
)
return reordered

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"""Types for aiohappyeyeballs."""
import socket
# PY3.9: Import Callable from typing until we drop Python 3.9 support
# https://github.com/python/cpython/issues/87131
from typing import Callable, Tuple, Union
AddrInfoType = Tuple[
Union[int, socket.AddressFamily],
Union[int, socket.SocketKind],
int,
str,
Tuple, # type: ignore[type-arg]
]
SocketFactoryType = Callable[[AddrInfoType], socket.socket]

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"""Utility functions for aiohappyeyeballs."""
import ipaddress
import socket
from typing import Dict, List, Optional, Tuple, Union
from .types import AddrInfoType
def addr_to_addr_infos(
addr: Optional[
Union[Tuple[str, int, int, int], Tuple[str, int, int], Tuple[str, int]]
],
) -> Optional[List[AddrInfoType]]:
"""Convert an address tuple to a list of addr_info tuples."""
if addr is None:
return None
host = addr[0]
port = addr[1]
is_ipv6 = ":" in host
if is_ipv6:
flowinfo = 0
scopeid = 0
addr_len = len(addr)
if addr_len >= 4:
scopeid = addr[3] # type: ignore[misc]
if addr_len >= 3:
flowinfo = addr[2] # type: ignore[misc]
addr = (host, port, flowinfo, scopeid)
family = socket.AF_INET6
else:
addr = (host, port)
family = socket.AF_INET
return [(family, socket.SOCK_STREAM, socket.IPPROTO_TCP, "", addr)]
def pop_addr_infos_interleave(
addr_infos: List[AddrInfoType], interleave: Optional[int] = None
) -> None:
"""
Pop addr_info from the list of addr_infos by family up to interleave times.
The interleave parameter is used to know how many addr_infos for
each family should be popped of the top of the list.
"""
seen: Dict[int, int] = {}
if interleave is None:
interleave = 1
to_remove: List[AddrInfoType] = []
for addr_info in addr_infos:
family = addr_info[0]
if family not in seen:
seen[family] = 0
if seen[family] < interleave:
to_remove.append(addr_info)
seen[family] += 1
for addr_info in to_remove:
addr_infos.remove(addr_info)
def _addr_tuple_to_ip_address(
addr: Union[Tuple[str, int], Tuple[str, int, int, int]],
) -> Union[
Tuple[ipaddress.IPv4Address, int], Tuple[ipaddress.IPv6Address, int, int, int]
]:
"""Convert an address tuple to an IPv4Address."""
return (ipaddress.ip_address(addr[0]), *addr[1:])
def remove_addr_infos(
addr_infos: List[AddrInfoType],
addr: Union[Tuple[str, int], Tuple[str, int, int, int]],
) -> None:
"""
Remove an address from the list of addr_infos.
The addr value is typically the return value of
sock.getpeername().
"""
bad_addrs_infos: List[AddrInfoType] = []
for addr_info in addr_infos:
if addr_info[-1] == addr:
bad_addrs_infos.append(addr_info)
if bad_addrs_infos:
for bad_addr_info in bad_addrs_infos:
addr_infos.remove(bad_addr_info)
return
# Slow path in case addr is formatted differently
match_addr = _addr_tuple_to_ip_address(addr)
for addr_info in addr_infos:
if match_addr == _addr_tuple_to_ip_address(addr_info[-1]):
bad_addrs_infos.append(addr_info)
if bad_addrs_infos:
for bad_addr_info in bad_addrs_infos:
addr_infos.remove(bad_addr_info)
return
raise ValueError(f"Address {addr} not found in addr_infos")

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pip

262
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Metadata-Version: 2.4
Name: aiohttp
Version: 3.13.3
Summary: Async http client/server framework (asyncio)
Maintainer-email: aiohttp team <team@aiohttp.org>
License: Apache-2.0 AND MIT
Project-URL: Homepage, https://github.com/aio-libs/aiohttp
Project-URL: Chat: Matrix, https://matrix.to/#/#aio-libs:matrix.org
Project-URL: Chat: Matrix Space, https://matrix.to/#/#aio-libs-space:matrix.org
Project-URL: CI: GitHub Actions, https://github.com/aio-libs/aiohttp/actions?query=workflow%3ACI
Project-URL: Coverage: codecov, https://codecov.io/github/aio-libs/aiohttp
Project-URL: Docs: Changelog, https://docs.aiohttp.org/en/stable/changes.html
Project-URL: Docs: RTD, https://docs.aiohttp.org
Project-URL: GitHub: issues, https://github.com/aio-libs/aiohttp/issues
Project-URL: GitHub: repo, https://github.com/aio-libs/aiohttp
Classifier: Development Status :: 5 - Production/Stable
Classifier: Framework :: AsyncIO
Classifier: Intended Audience :: Developers
Classifier: Operating System :: POSIX
Classifier: Operating System :: MacOS :: MacOS X
Classifier: Operating System :: Microsoft :: Windows
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Classifier: Programming Language :: Python :: 3.13
Classifier: Programming Language :: Python :: 3.14
Classifier: Topic :: Internet :: WWW/HTTP
Requires-Python: >=3.9
Description-Content-Type: text/x-rst
License-File: LICENSE.txt
License-File: vendor/llhttp/LICENSE
Requires-Dist: aiohappyeyeballs>=2.5.0
Requires-Dist: aiosignal>=1.4.0
Requires-Dist: async-timeout<6.0,>=4.0; python_version < "3.11"
Requires-Dist: attrs>=17.3.0
Requires-Dist: frozenlist>=1.1.1
Requires-Dist: multidict<7.0,>=4.5
Requires-Dist: propcache>=0.2.0
Requires-Dist: yarl<2.0,>=1.17.0
Provides-Extra: speedups
Requires-Dist: aiodns>=3.3.0; extra == "speedups"
Requires-Dist: Brotli>=1.2; platform_python_implementation == "CPython" and extra == "speedups"
Requires-Dist: brotlicffi>=1.2; platform_python_implementation != "CPython" and extra == "speedups"
Requires-Dist: backports.zstd; (platform_python_implementation == "CPython" and python_version < "3.14") and extra == "speedups"
Dynamic: license-file
==================================
Async http client/server framework
==================================
.. image:: https://raw.githubusercontent.com/aio-libs/aiohttp/master/docs/aiohttp-plain.svg
:height: 64px
:width: 64px
:alt: aiohttp logo
|
.. image:: https://github.com/aio-libs/aiohttp/workflows/CI/badge.svg
:target: https://github.com/aio-libs/aiohttp/actions?query=workflow%3ACI
:alt: GitHub Actions status for master branch
.. image:: https://codecov.io/gh/aio-libs/aiohttp/branch/master/graph/badge.svg
:target: https://codecov.io/gh/aio-libs/aiohttp
:alt: codecov.io status for master branch
.. image:: https://badge.fury.io/py/aiohttp.svg
:target: https://pypi.org/project/aiohttp
:alt: Latest PyPI package version
.. image:: https://img.shields.io/pypi/dm/aiohttp
:target: https://pypistats.org/packages/aiohttp
:alt: Downloads count
.. image:: https://readthedocs.org/projects/aiohttp/badge/?version=latest
:target: https://docs.aiohttp.org/
:alt: Latest Read The Docs
.. image:: https://img.shields.io/endpoint?url=https://codspeed.io/badge.json
:target: https://codspeed.io/aio-libs/aiohttp
:alt: Codspeed.io status for aiohttp
Key Features
============
- Supports both client and server side of HTTP protocol.
- Supports both client and server Web-Sockets out-of-the-box and avoids
Callback Hell.
- Provides Web-server with middleware and pluggable routing.
Getting started
===============
Client
------
To get something from the web:
.. code-block:: python
import aiohttp
import asyncio
async def main():
async with aiohttp.ClientSession() as session:
async with session.get('http://python.org') as response:
print("Status:", response.status)
print("Content-type:", response.headers['content-type'])
html = await response.text()
print("Body:", html[:15], "...")
asyncio.run(main())
This prints:
.. code-block::
Status: 200
Content-type: text/html; charset=utf-8
Body: <!doctype html> ...
Coming from `requests <https://requests.readthedocs.io/>`_ ? Read `why we need so many lines <https://aiohttp.readthedocs.io/en/latest/http_request_lifecycle.html>`_.
Server
------
An example using a simple server:
.. code-block:: python
# examples/server_simple.py
from aiohttp import web
async def handle(request):
name = request.match_info.get('name', "Anonymous")
text = "Hello, " + name
return web.Response(text=text)
async def wshandle(request):
ws = web.WebSocketResponse()
await ws.prepare(request)
async for msg in ws:
if msg.type == web.WSMsgType.text:
await ws.send_str("Hello, {}".format(msg.data))
elif msg.type == web.WSMsgType.binary:
await ws.send_bytes(msg.data)
elif msg.type == web.WSMsgType.close:
break
return ws
app = web.Application()
app.add_routes([web.get('/', handle),
web.get('/echo', wshandle),
web.get('/{name}', handle)])
if __name__ == '__main__':
web.run_app(app)
Documentation
=============
https://aiohttp.readthedocs.io/
Demos
=====
https://github.com/aio-libs/aiohttp-demos
External links
==============
* `Third party libraries
<http://aiohttp.readthedocs.io/en/latest/third_party.html>`_
* `Built with aiohttp
<http://aiohttp.readthedocs.io/en/latest/built_with.html>`_
* `Powered by aiohttp
<http://aiohttp.readthedocs.io/en/latest/powered_by.html>`_
Feel free to make a Pull Request for adding your link to these pages!
Communication channels
======================
*aio-libs Discussions*: https://github.com/aio-libs/aiohttp/discussions
*Matrix*: `#aio-libs:matrix.org <https://matrix.to/#/#aio-libs:matrix.org>`_
We support `Stack Overflow
<https://stackoverflow.com/questions/tagged/aiohttp>`_.
Please add *aiohttp* tag to your question there.
Requirements
============
- attrs_
- multidict_
- yarl_
- frozenlist_
Optionally you may install the aiodns_ library (highly recommended for sake of speed).
.. _aiodns: https://pypi.python.org/pypi/aiodns
.. _attrs: https://github.com/python-attrs/attrs
.. _multidict: https://pypi.python.org/pypi/multidict
.. _frozenlist: https://pypi.org/project/frozenlist/
.. _yarl: https://pypi.python.org/pypi/yarl
.. _async-timeout: https://pypi.python.org/pypi/async_timeout
License
=======
``aiohttp`` is offered under the Apache 2 license.
Keepsafe
========
The aiohttp community would like to thank Keepsafe
(https://www.getkeepsafe.com) for its support in the early days of
the project.
Source code
===========
The latest developer version is available in a GitHub repository:
https://github.com/aio-libs/aiohttp
Benchmarks
==========
If you are interested in efficiency, the AsyncIO community maintains a
list of benchmarks on the official wiki:
https://github.com/python/asyncio/wiki/Benchmarks
--------
.. image:: https://img.shields.io/matrix/aio-libs:matrix.org?label=Discuss%20on%20Matrix%20at%20%23aio-libs%3Amatrix.org&logo=matrix&server_fqdn=matrix.org&style=flat
:target: https://matrix.to/#/%23aio-libs:matrix.org
:alt: Matrix Room — #aio-libs:matrix.org
.. image:: https://img.shields.io/matrix/aio-libs-space:matrix.org?label=Discuss%20on%20Matrix%20at%20%23aio-libs-space%3Amatrix.org&logo=matrix&server_fqdn=matrix.org&style=flat
:target: https://matrix.to/#/%23aio-libs-space:matrix.org
:alt: Matrix Space — #aio-libs-space:matrix.org
.. image:: https://insights.linuxfoundation.org/api/badge/health-score?project=aiohttp
:target: https://insights.linuxfoundation.org/project/aiohttp
:alt: LFX Health Score

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Tag: cp312-cp312-manylinux_2_28_x86_64

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Copyright aio-libs contributors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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This software is licensed under the MIT License.
Copyright Fedor Indutny, 2018.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to permit
persons to whom the Software is furnished to do so, subject to the
following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN THE SOFTWARE.

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aiohttp

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5276d46021e0e0d7577e0c9155800cbf62932d60a50783fec42aefb63febedec /home/runner/work/aiohttp/aiohttp/aiohttp/_cparser.pxd

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dab8f933203eeb245d60f856e542a45b888d5a110094620e4811f90f816628d1 /home/runner/work/aiohttp/aiohttp/aiohttp/hdrs.py

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__version__ = "3.13.3"
from typing import TYPE_CHECKING, Tuple
from . import hdrs as hdrs
from .client import (
BaseConnector,
ClientConnectionError,
ClientConnectionResetError,
ClientConnectorCertificateError,
ClientConnectorDNSError,
ClientConnectorError,
ClientConnectorSSLError,
ClientError,
ClientHttpProxyError,
ClientOSError,
ClientPayloadError,
ClientProxyConnectionError,
ClientRequest,
ClientResponse,
ClientResponseError,
ClientSession,
ClientSSLError,
ClientTimeout,
ClientWebSocketResponse,
ClientWSTimeout,
ConnectionTimeoutError,
ContentTypeError,
Fingerprint,
InvalidURL,
InvalidUrlClientError,
InvalidUrlRedirectClientError,
NamedPipeConnector,
NonHttpUrlClientError,
NonHttpUrlRedirectClientError,
RedirectClientError,
RequestInfo,
ServerConnectionError,
ServerDisconnectedError,
ServerFingerprintMismatch,
ServerTimeoutError,
SocketTimeoutError,
TCPConnector,
TooManyRedirects,
UnixConnector,
WSMessageTypeError,
WSServerHandshakeError,
request,
)
from .client_middleware_digest_auth import DigestAuthMiddleware
from .client_middlewares import ClientHandlerType, ClientMiddlewareType
from .compression_utils import set_zlib_backend
from .connector import (
AddrInfoType as AddrInfoType,
SocketFactoryType as SocketFactoryType,
)
from .cookiejar import CookieJar as CookieJar, DummyCookieJar as DummyCookieJar
from .formdata import FormData as FormData
from .helpers import BasicAuth, ChainMapProxy, ETag
from .http import (
HttpVersion as HttpVersion,
HttpVersion10 as HttpVersion10,
HttpVersion11 as HttpVersion11,
WebSocketError as WebSocketError,
WSCloseCode as WSCloseCode,
WSMessage as WSMessage,
WSMsgType as WSMsgType,
)
from .multipart import (
BadContentDispositionHeader as BadContentDispositionHeader,
BadContentDispositionParam as BadContentDispositionParam,
BodyPartReader as BodyPartReader,
MultipartReader as MultipartReader,
MultipartWriter as MultipartWriter,
content_disposition_filename as content_disposition_filename,
parse_content_disposition as parse_content_disposition,
)
from .payload import (
PAYLOAD_REGISTRY as PAYLOAD_REGISTRY,
AsyncIterablePayload as AsyncIterablePayload,
BufferedReaderPayload as BufferedReaderPayload,
BytesIOPayload as BytesIOPayload,
BytesPayload as BytesPayload,
IOBasePayload as IOBasePayload,
JsonPayload as JsonPayload,
Payload as Payload,
StringIOPayload as StringIOPayload,
StringPayload as StringPayload,
TextIOPayload as TextIOPayload,
get_payload as get_payload,
payload_type as payload_type,
)
from .payload_streamer import streamer as streamer
from .resolver import (
AsyncResolver as AsyncResolver,
DefaultResolver as DefaultResolver,
ThreadedResolver as ThreadedResolver,
)
from .streams import (
EMPTY_PAYLOAD as EMPTY_PAYLOAD,
DataQueue as DataQueue,
EofStream as EofStream,
FlowControlDataQueue as FlowControlDataQueue,
StreamReader as StreamReader,
)
from .tracing import (
TraceConfig as TraceConfig,
TraceConnectionCreateEndParams as TraceConnectionCreateEndParams,
TraceConnectionCreateStartParams as TraceConnectionCreateStartParams,
TraceConnectionQueuedEndParams as TraceConnectionQueuedEndParams,
TraceConnectionQueuedStartParams as TraceConnectionQueuedStartParams,
TraceConnectionReuseconnParams as TraceConnectionReuseconnParams,
TraceDnsCacheHitParams as TraceDnsCacheHitParams,
TraceDnsCacheMissParams as TraceDnsCacheMissParams,
TraceDnsResolveHostEndParams as TraceDnsResolveHostEndParams,
TraceDnsResolveHostStartParams as TraceDnsResolveHostStartParams,
TraceRequestChunkSentParams as TraceRequestChunkSentParams,
TraceRequestEndParams as TraceRequestEndParams,
TraceRequestExceptionParams as TraceRequestExceptionParams,
TraceRequestHeadersSentParams as TraceRequestHeadersSentParams,
TraceRequestRedirectParams as TraceRequestRedirectParams,
TraceRequestStartParams as TraceRequestStartParams,
TraceResponseChunkReceivedParams as TraceResponseChunkReceivedParams,
)
if TYPE_CHECKING:
# At runtime these are lazy-loaded at the bottom of the file.
from .worker import (
GunicornUVLoopWebWorker as GunicornUVLoopWebWorker,
GunicornWebWorker as GunicornWebWorker,
)
__all__: Tuple[str, ...] = (
"hdrs",
# client
"AddrInfoType",
"BaseConnector",
"ClientConnectionError",
"ClientConnectionResetError",
"ClientConnectorCertificateError",
"ClientConnectorDNSError",
"ClientConnectorError",
"ClientConnectorSSLError",
"ClientError",
"ClientHttpProxyError",
"ClientOSError",
"ClientPayloadError",
"ClientProxyConnectionError",
"ClientResponse",
"ClientRequest",
"ClientResponseError",
"ClientSSLError",
"ClientSession",
"ClientTimeout",
"ClientWebSocketResponse",
"ClientWSTimeout",
"ConnectionTimeoutError",
"ContentTypeError",
"Fingerprint",
"FlowControlDataQueue",
"InvalidURL",
"InvalidUrlClientError",
"InvalidUrlRedirectClientError",
"NonHttpUrlClientError",
"NonHttpUrlRedirectClientError",
"RedirectClientError",
"RequestInfo",
"ServerConnectionError",
"ServerDisconnectedError",
"ServerFingerprintMismatch",
"ServerTimeoutError",
"SocketFactoryType",
"SocketTimeoutError",
"TCPConnector",
"TooManyRedirects",
"UnixConnector",
"NamedPipeConnector",
"WSServerHandshakeError",
"request",
# client_middleware
"ClientMiddlewareType",
"ClientHandlerType",
# cookiejar
"CookieJar",
"DummyCookieJar",
# formdata
"FormData",
# helpers
"BasicAuth",
"ChainMapProxy",
"DigestAuthMiddleware",
"ETag",
"set_zlib_backend",
# http
"HttpVersion",
"HttpVersion10",
"HttpVersion11",
"WSMsgType",
"WSCloseCode",
"WSMessage",
"WebSocketError",
# multipart
"BadContentDispositionHeader",
"BadContentDispositionParam",
"BodyPartReader",
"MultipartReader",
"MultipartWriter",
"content_disposition_filename",
"parse_content_disposition",
# payload
"AsyncIterablePayload",
"BufferedReaderPayload",
"BytesIOPayload",
"BytesPayload",
"IOBasePayload",
"JsonPayload",
"PAYLOAD_REGISTRY",
"Payload",
"StringIOPayload",
"StringPayload",
"TextIOPayload",
"get_payload",
"payload_type",
# payload_streamer
"streamer",
# resolver
"AsyncResolver",
"DefaultResolver",
"ThreadedResolver",
# streams
"DataQueue",
"EMPTY_PAYLOAD",
"EofStream",
"StreamReader",
# tracing
"TraceConfig",
"TraceConnectionCreateEndParams",
"TraceConnectionCreateStartParams",
"TraceConnectionQueuedEndParams",
"TraceConnectionQueuedStartParams",
"TraceConnectionReuseconnParams",
"TraceDnsCacheHitParams",
"TraceDnsCacheMissParams",
"TraceDnsResolveHostEndParams",
"TraceDnsResolveHostStartParams",
"TraceRequestChunkSentParams",
"TraceRequestEndParams",
"TraceRequestExceptionParams",
"TraceRequestHeadersSentParams",
"TraceRequestRedirectParams",
"TraceRequestStartParams",
"TraceResponseChunkReceivedParams",
# workers (imported lazily with __getattr__)
"GunicornUVLoopWebWorker",
"GunicornWebWorker",
"WSMessageTypeError",
)
def __dir__() -> Tuple[str, ...]:
return __all__ + ("__doc__",)
def __getattr__(name: str) -> object:
global GunicornUVLoopWebWorker, GunicornWebWorker
# Importing gunicorn takes a long time (>100ms), so only import if actually needed.
if name in ("GunicornUVLoopWebWorker", "GunicornWebWorker"):
try:
from .worker import GunicornUVLoopWebWorker as guv, GunicornWebWorker as gw
except ImportError:
return None
GunicornUVLoopWebWorker = guv # type: ignore[misc]
GunicornWebWorker = gw # type: ignore[misc]
return guv if name == "GunicornUVLoopWebWorker" else gw
raise AttributeError(f"module {__name__} has no attribute {name}")

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"""
Internal cookie handling helpers.
This module contains internal utilities for cookie parsing and manipulation.
These are not part of the public API and may change without notice.
"""
import re
from http.cookies import Morsel
from typing import List, Optional, Sequence, Tuple, cast
from .log import internal_logger
__all__ = (
"parse_set_cookie_headers",
"parse_cookie_header",
"preserve_morsel_with_coded_value",
)
# Cookie parsing constants
# Allow more characters in cookie names to handle real-world cookies
# that don't strictly follow RFC standards (fixes #2683)
# RFC 6265 defines cookie-name token as per RFC 2616 Section 2.2,
# but many servers send cookies with characters like {} [] () etc.
# This makes the cookie parser more tolerant of real-world cookies
# while still providing some validation to catch obviously malformed names.
_COOKIE_NAME_RE = re.compile(r"^[!#$%&\'()*+\-./0-9:<=>?@A-Z\[\]^_`a-z{|}~]+$")
_COOKIE_KNOWN_ATTRS = frozenset( # AKA Morsel._reserved
(
"path",
"domain",
"max-age",
"expires",
"secure",
"httponly",
"samesite",
"partitioned",
"version",
"comment",
)
)
_COOKIE_BOOL_ATTRS = frozenset( # AKA Morsel._flags
("secure", "httponly", "partitioned")
)
# SimpleCookie's pattern for parsing cookies with relaxed validation
# Based on http.cookies pattern but extended to allow more characters in cookie names
# to handle real-world cookies (fixes #2683)
_COOKIE_PATTERN = re.compile(
r"""
\s* # Optional whitespace at start of cookie
(?P<key> # Start of group 'key'
# aiohttp has extended to include [] for compatibility with real-world cookies
[\w\d!#%&'~_`><@,:/\$\*\+\-\.\^\|\)\(\?\}\{\[\]]+ # Any word of at least one letter
) # End of group 'key'
( # Optional group: there may not be a value.
\s*=\s* # Equal Sign
(?P<val> # Start of group 'val'
"(?:[^\\"]|\\.)*" # Any double-quoted string (properly closed)
| # or
"[^";]* # Unmatched opening quote (differs from SimpleCookie - issue #7993)
| # or
# Special case for "expires" attr - RFC 822, RFC 850, RFC 1036, RFC 1123
(\w{3,6}day|\w{3}),\s # Day of the week or abbreviated day (with comma)
[\w\d\s-]{9,11}\s[\d:]{8}\s # Date and time in specific format
(GMT|[+-]\d{4}) # Timezone: GMT or RFC 2822 offset like -0000, +0100
# NOTE: RFC 2822 timezone support is an aiohttp extension
# for issue #4493 - SimpleCookie does NOT support this
| # or
# ANSI C asctime() format: "Wed Jun 9 10:18:14 2021"
# NOTE: This is an aiohttp extension for issue #4327 - SimpleCookie does NOT support this format
\w{3}\s+\w{3}\s+[\s\d]\d\s+\d{2}:\d{2}:\d{2}\s+\d{4}
| # or
[\w\d!#%&'~_`><@,:/\$\*\+\-\.\^\|\)\(\?\}\{\=\[\]]* # Any word or empty string
) # End of group 'val'
)? # End of optional value group
\s* # Any number of spaces.
(\s+|;|$) # Ending either at space, semicolon, or EOS.
""",
re.VERBOSE | re.ASCII,
)
def preserve_morsel_with_coded_value(cookie: Morsel[str]) -> Morsel[str]:
"""
Preserve a Morsel's coded_value exactly as received from the server.
This function ensures that cookie encoding is preserved exactly as sent by
the server, which is critical for compatibility with old servers that have
strict requirements about cookie formats.
This addresses the issue described in https://github.com/aio-libs/aiohttp/pull/1453
where Python's SimpleCookie would re-encode cookies, breaking authentication
with certain servers.
Args:
cookie: A Morsel object from SimpleCookie
Returns:
A Morsel object with preserved coded_value
"""
mrsl_val = cast("Morsel[str]", cookie.get(cookie.key, Morsel()))
# We use __setstate__ instead of the public set() API because it allows us to
# bypass validation and set already validated state. This is more stable than
# setting protected attributes directly and unlikely to change since it would
# break pickling.
mrsl_val.__setstate__( # type: ignore[attr-defined]
{"key": cookie.key, "value": cookie.value, "coded_value": cookie.coded_value}
)
return mrsl_val
_unquote_sub = re.compile(r"\\(?:([0-3][0-7][0-7])|(.))").sub
def _unquote_replace(m: re.Match[str]) -> str:
"""
Replace function for _unquote_sub regex substitution.
Handles escaped characters in cookie values:
- Octal sequences are converted to their character representation
- Other escaped characters are unescaped by removing the backslash
"""
if m[1]:
return chr(int(m[1], 8))
return m[2]
def _unquote(value: str) -> str:
"""
Unquote a cookie value.
Vendored from http.cookies._unquote to ensure compatibility.
Note: The original implementation checked for None, but we've removed
that check since all callers already ensure the value is not None.
"""
# If there aren't any doublequotes,
# then there can't be any special characters. See RFC 2109.
if len(value) < 2:
return value
if value[0] != '"' or value[-1] != '"':
return value
# We have to assume that we must decode this string.
# Down to work.
# Remove the "s
value = value[1:-1]
# Check for special sequences. Examples:
# \012 --> \n
# \" --> "
#
return _unquote_sub(_unquote_replace, value)
def parse_cookie_header(header: str) -> List[Tuple[str, Morsel[str]]]:
"""
Parse a Cookie header according to RFC 6265 Section 5.4.
Cookie headers contain only name-value pairs separated by semicolons.
There are no attributes in Cookie headers - even names that match
attribute names (like 'path' or 'secure') should be treated as cookies.
This parser uses the same regex-based approach as parse_set_cookie_headers
to properly handle quoted values that may contain semicolons. When the
regex fails to match a malformed cookie, it falls back to simple parsing
to ensure subsequent cookies are not lost
https://github.com/aio-libs/aiohttp/issues/11632
Args:
header: The Cookie header value to parse
Returns:
List of (name, Morsel) tuples for compatibility with SimpleCookie.update()
"""
if not header:
return []
cookies: List[Tuple[str, Morsel[str]]] = []
morsel: Morsel[str]
i = 0
n = len(header)
invalid_names = []
while i < n:
# Use the same pattern as parse_set_cookie_headers to find cookies
match = _COOKIE_PATTERN.match(header, i)
if not match:
# Fallback for malformed cookies https://github.com/aio-libs/aiohttp/issues/11632
# Find next semicolon to skip or attempt simple key=value parsing
next_semi = header.find(";", i)
eq_pos = header.find("=", i)
# Try to extract key=value if '=' comes before ';'
if eq_pos != -1 and (next_semi == -1 or eq_pos < next_semi):
end_pos = next_semi if next_semi != -1 else n
key = header[i:eq_pos].strip()
value = header[eq_pos + 1 : end_pos].strip()
# Validate the name (same as regex path)
if not _COOKIE_NAME_RE.match(key):
invalid_names.append(key)
else:
morsel = Morsel()
morsel.__setstate__( # type: ignore[attr-defined]
{"key": key, "value": _unquote(value), "coded_value": value}
)
cookies.append((key, morsel))
# Move to next cookie or end
i = next_semi + 1 if next_semi != -1 else n
continue
key = match.group("key")
value = match.group("val") or ""
i = match.end(0)
# Validate the name
if not key or not _COOKIE_NAME_RE.match(key):
invalid_names.append(key)
continue
# Create new morsel
morsel = Morsel()
# Preserve the original value as coded_value (with quotes if present)
# We use __setstate__ instead of the public set() API because it allows us to
# bypass validation and set already validated state. This is more stable than
# setting protected attributes directly and unlikely to change since it would
# break pickling.
morsel.__setstate__( # type: ignore[attr-defined]
{"key": key, "value": _unquote(value), "coded_value": value}
)
cookies.append((key, morsel))
if invalid_names:
internal_logger.debug(
"Cannot load cookie. Illegal cookie names: %r", invalid_names
)
return cookies
def parse_set_cookie_headers(headers: Sequence[str]) -> List[Tuple[str, Morsel[str]]]:
"""
Parse cookie headers using a vendored version of SimpleCookie parsing.
This implementation is based on SimpleCookie.__parse_string to ensure
compatibility with how SimpleCookie parses cookies, including handling
of malformed cookies with missing semicolons.
This function is used for both Cookie and Set-Cookie headers in order to be
forgiving. Ideally we would have followed RFC 6265 Section 5.2 (for Cookie
headers) and RFC 6265 Section 4.2.1 (for Set-Cookie headers), but the
real world data makes it impossible since we need to be a bit more forgiving.
NOTE: This implementation differs from SimpleCookie in handling unmatched quotes.
SimpleCookie will stop parsing when it encounters a cookie value with an unmatched
quote (e.g., 'cookie="value'), causing subsequent cookies to be silently dropped.
This implementation handles unmatched quotes more gracefully to prevent cookie loss.
See https://github.com/aio-libs/aiohttp/issues/7993
"""
parsed_cookies: List[Tuple[str, Morsel[str]]] = []
for header in headers:
if not header:
continue
# Parse cookie string using SimpleCookie's algorithm
i = 0
n = len(header)
current_morsel: Optional[Morsel[str]] = None
morsel_seen = False
while 0 <= i < n:
# Start looking for a cookie
match = _COOKIE_PATTERN.match(header, i)
if not match:
# No more cookies
break
key, value = match.group("key"), match.group("val")
i = match.end(0)
lower_key = key.lower()
if key[0] == "$":
if not morsel_seen:
# We ignore attributes which pertain to the cookie
# mechanism as a whole, such as "$Version".
continue
# Process as attribute
if current_morsel is not None:
attr_lower_key = lower_key[1:]
if attr_lower_key in _COOKIE_KNOWN_ATTRS:
current_morsel[attr_lower_key] = value or ""
elif lower_key in _COOKIE_KNOWN_ATTRS:
if not morsel_seen:
# Invalid cookie string - attribute before cookie
break
if lower_key in _COOKIE_BOOL_ATTRS:
# Boolean attribute with any value should be True
if current_morsel is not None and current_morsel.isReservedKey(key):
current_morsel[lower_key] = True
elif value is None:
# Invalid cookie string - non-boolean attribute without value
break
elif current_morsel is not None:
# Regular attribute with value
current_morsel[lower_key] = _unquote(value)
elif value is not None:
# This is a cookie name=value pair
# Validate the name
if key in _COOKIE_KNOWN_ATTRS or not _COOKIE_NAME_RE.match(key):
internal_logger.warning(
"Can not load cookies: Illegal cookie name %r", key
)
current_morsel = None
else:
# Create new morsel
current_morsel = Morsel()
# Preserve the original value as coded_value (with quotes if present)
# We use __setstate__ instead of the public set() API because it allows us to
# bypass validation and set already validated state. This is more stable than
# setting protected attributes directly and unlikely to change since it would
# break pickling.
current_morsel.__setstate__( # type: ignore[attr-defined]
{"key": key, "value": _unquote(value), "coded_value": value}
)
parsed_cookies.append((key, current_morsel))
morsel_seen = True
else:
# Invalid cookie string - no value for non-attribute
break
return parsed_cookies

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from libc.stdint cimport int32_t, uint8_t, uint16_t, uint64_t
cdef extern from "llhttp.h":
struct llhttp__internal_s:
int32_t _index
void* _span_pos0
void* _span_cb0
int32_t error
const char* reason
const char* error_pos
void* data
void* _current
uint64_t content_length
uint8_t type
uint8_t method
uint8_t http_major
uint8_t http_minor
uint8_t header_state
uint8_t lenient_flags
uint8_t upgrade
uint8_t finish
uint16_t flags
uint16_t status_code
void* settings
ctypedef llhttp__internal_s llhttp__internal_t
ctypedef llhttp__internal_t llhttp_t
ctypedef int (*llhttp_data_cb)(llhttp_t*, const char *at, size_t length) except -1
ctypedef int (*llhttp_cb)(llhttp_t*) except -1
struct llhttp_settings_s:
llhttp_cb on_message_begin
llhttp_data_cb on_url
llhttp_data_cb on_status
llhttp_data_cb on_header_field
llhttp_data_cb on_header_value
llhttp_cb on_headers_complete
llhttp_data_cb on_body
llhttp_cb on_message_complete
llhttp_cb on_chunk_header
llhttp_cb on_chunk_complete
llhttp_cb on_url_complete
llhttp_cb on_status_complete
llhttp_cb on_header_field_complete
llhttp_cb on_header_value_complete
ctypedef llhttp_settings_s llhttp_settings_t
enum llhttp_errno:
HPE_OK,
HPE_INTERNAL,
HPE_STRICT,
HPE_LF_EXPECTED,
HPE_UNEXPECTED_CONTENT_LENGTH,
HPE_CLOSED_CONNECTION,
HPE_INVALID_METHOD,
HPE_INVALID_URL,
HPE_INVALID_CONSTANT,
HPE_INVALID_VERSION,
HPE_INVALID_HEADER_TOKEN,
HPE_INVALID_CONTENT_LENGTH,
HPE_INVALID_CHUNK_SIZE,
HPE_INVALID_STATUS,
HPE_INVALID_EOF_STATE,
HPE_INVALID_TRANSFER_ENCODING,
HPE_CB_MESSAGE_BEGIN,
HPE_CB_HEADERS_COMPLETE,
HPE_CB_MESSAGE_COMPLETE,
HPE_CB_CHUNK_HEADER,
HPE_CB_CHUNK_COMPLETE,
HPE_PAUSED,
HPE_PAUSED_UPGRADE,
HPE_USER
ctypedef llhttp_errno llhttp_errno_t
enum llhttp_flags:
F_CHUNKED,
F_CONTENT_LENGTH
enum llhttp_type:
HTTP_REQUEST,
HTTP_RESPONSE,
HTTP_BOTH
enum llhttp_method:
HTTP_DELETE,
HTTP_GET,
HTTP_HEAD,
HTTP_POST,
HTTP_PUT,
HTTP_CONNECT,
HTTP_OPTIONS,
HTTP_TRACE,
HTTP_COPY,
HTTP_LOCK,
HTTP_MKCOL,
HTTP_MOVE,
HTTP_PROPFIND,
HTTP_PROPPATCH,
HTTP_SEARCH,
HTTP_UNLOCK,
HTTP_BIND,
HTTP_REBIND,
HTTP_UNBIND,
HTTP_ACL,
HTTP_REPORT,
HTTP_MKACTIVITY,
HTTP_CHECKOUT,
HTTP_MERGE,
HTTP_MSEARCH,
HTTP_NOTIFY,
HTTP_SUBSCRIBE,
HTTP_UNSUBSCRIBE,
HTTP_PATCH,
HTTP_PURGE,
HTTP_MKCALENDAR,
HTTP_LINK,
HTTP_UNLINK,
HTTP_SOURCE,
HTTP_PRI,
HTTP_DESCRIBE,
HTTP_ANNOUNCE,
HTTP_SETUP,
HTTP_PLAY,
HTTP_PAUSE,
HTTP_TEARDOWN,
HTTP_GET_PARAMETER,
HTTP_SET_PARAMETER,
HTTP_REDIRECT,
HTTP_RECORD,
HTTP_FLUSH
ctypedef llhttp_method llhttp_method_t;
void llhttp_settings_init(llhttp_settings_t* settings)
void llhttp_init(llhttp_t* parser, llhttp_type type,
const llhttp_settings_t* settings)
llhttp_errno_t llhttp_execute(llhttp_t* parser, const char* data, size_t len)
int llhttp_should_keep_alive(const llhttp_t* parser)
void llhttp_resume_after_upgrade(llhttp_t* parser)
llhttp_errno_t llhttp_get_errno(const llhttp_t* parser)
const char* llhttp_get_error_reason(const llhttp_t* parser)
const char* llhttp_get_error_pos(const llhttp_t* parser)
const char* llhttp_method_name(llhttp_method_t method)
void llhttp_set_lenient_headers(llhttp_t* parser, int enabled)
void llhttp_set_lenient_optional_cr_before_lf(llhttp_t* parser, int enabled)
void llhttp_set_lenient_spaces_after_chunk_size(llhttp_t* parser, int enabled)

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cdef extern from "_find_header.h":
int find_header(char *, int)

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# The file is autogenerated from aiohttp/hdrs.py
# Run ./tools/gen.py to update it after the origin changing.
from . import hdrs
cdef tuple headers = (
hdrs.ACCEPT,
hdrs.ACCEPT_CHARSET,
hdrs.ACCEPT_ENCODING,
hdrs.ACCEPT_LANGUAGE,
hdrs.ACCEPT_RANGES,
hdrs.ACCESS_CONTROL_ALLOW_CREDENTIALS,
hdrs.ACCESS_CONTROL_ALLOW_HEADERS,
hdrs.ACCESS_CONTROL_ALLOW_METHODS,
hdrs.ACCESS_CONTROL_ALLOW_ORIGIN,
hdrs.ACCESS_CONTROL_EXPOSE_HEADERS,
hdrs.ACCESS_CONTROL_MAX_AGE,
hdrs.ACCESS_CONTROL_REQUEST_HEADERS,
hdrs.ACCESS_CONTROL_REQUEST_METHOD,
hdrs.AGE,
hdrs.ALLOW,
hdrs.AUTHORIZATION,
hdrs.CACHE_CONTROL,
hdrs.CONNECTION,
hdrs.CONTENT_DISPOSITION,
hdrs.CONTENT_ENCODING,
hdrs.CONTENT_LANGUAGE,
hdrs.CONTENT_LENGTH,
hdrs.CONTENT_LOCATION,
hdrs.CONTENT_MD5,
hdrs.CONTENT_RANGE,
hdrs.CONTENT_TRANSFER_ENCODING,
hdrs.CONTENT_TYPE,
hdrs.COOKIE,
hdrs.DATE,
hdrs.DESTINATION,
hdrs.DIGEST,
hdrs.ETAG,
hdrs.EXPECT,
hdrs.EXPIRES,
hdrs.FORWARDED,
hdrs.FROM,
hdrs.HOST,
hdrs.IF_MATCH,
hdrs.IF_MODIFIED_SINCE,
hdrs.IF_NONE_MATCH,
hdrs.IF_RANGE,
hdrs.IF_UNMODIFIED_SINCE,
hdrs.KEEP_ALIVE,
hdrs.LAST_EVENT_ID,
hdrs.LAST_MODIFIED,
hdrs.LINK,
hdrs.LOCATION,
hdrs.MAX_FORWARDS,
hdrs.ORIGIN,
hdrs.PRAGMA,
hdrs.PROXY_AUTHENTICATE,
hdrs.PROXY_AUTHORIZATION,
hdrs.RANGE,
hdrs.REFERER,
hdrs.RETRY_AFTER,
hdrs.SEC_WEBSOCKET_ACCEPT,
hdrs.SEC_WEBSOCKET_EXTENSIONS,
hdrs.SEC_WEBSOCKET_KEY,
hdrs.SEC_WEBSOCKET_KEY1,
hdrs.SEC_WEBSOCKET_PROTOCOL,
hdrs.SEC_WEBSOCKET_VERSION,
hdrs.SERVER,
hdrs.SET_COOKIE,
hdrs.TE,
hdrs.TRAILER,
hdrs.TRANSFER_ENCODING,
hdrs.URI,
hdrs.UPGRADE,
hdrs.USER_AGENT,
hdrs.VARY,
hdrs.VIA,
hdrs.WWW_AUTHENTICATE,
hdrs.WANT_DIGEST,
hdrs.WARNING,
hdrs.X_FORWARDED_FOR,
hdrs.X_FORWARDED_HOST,
hdrs.X_FORWARDED_PROTO,
)

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# Based on https://github.com/MagicStack/httptools
#
from cpython cimport (
Py_buffer,
PyBUF_SIMPLE,
PyBuffer_Release,
PyBytes_AsString,
PyBytes_AsStringAndSize,
PyObject_GetBuffer,
)
from cpython.mem cimport PyMem_Free, PyMem_Malloc
from libc.limits cimport ULLONG_MAX
from libc.string cimport memcpy
from multidict import CIMultiDict as _CIMultiDict, CIMultiDictProxy as _CIMultiDictProxy
from yarl import URL as _URL
from aiohttp import hdrs
from aiohttp.helpers import DEBUG, set_exception
from .http_exceptions import (
BadHttpMessage,
BadHttpMethod,
BadStatusLine,
ContentLengthError,
InvalidHeader,
InvalidURLError,
LineTooLong,
PayloadEncodingError,
TransferEncodingError,
)
from .http_parser import DeflateBuffer as _DeflateBuffer
from .http_writer import (
HttpVersion as _HttpVersion,
HttpVersion10 as _HttpVersion10,
HttpVersion11 as _HttpVersion11,
)
from .streams import EMPTY_PAYLOAD as _EMPTY_PAYLOAD, StreamReader as _StreamReader
cimport cython
from aiohttp cimport _cparser as cparser
include "_headers.pxi"
from aiohttp cimport _find_header
ALLOWED_UPGRADES = frozenset({"websocket"})
DEF DEFAULT_FREELIST_SIZE = 250
cdef extern from "Python.h":
int PyByteArray_Resize(object, Py_ssize_t) except -1
Py_ssize_t PyByteArray_Size(object) except -1
char* PyByteArray_AsString(object)
__all__ = ('HttpRequestParser', 'HttpResponseParser',
'RawRequestMessage', 'RawResponseMessage')
cdef object URL = _URL
cdef object URL_build = URL.build
cdef object CIMultiDict = _CIMultiDict
cdef object CIMultiDictProxy = _CIMultiDictProxy
cdef object HttpVersion = _HttpVersion
cdef object HttpVersion10 = _HttpVersion10
cdef object HttpVersion11 = _HttpVersion11
cdef object SEC_WEBSOCKET_KEY1 = hdrs.SEC_WEBSOCKET_KEY1
cdef object CONTENT_ENCODING = hdrs.CONTENT_ENCODING
cdef object EMPTY_PAYLOAD = _EMPTY_PAYLOAD
cdef object StreamReader = _StreamReader
cdef object DeflateBuffer = _DeflateBuffer
cdef bytes EMPTY_BYTES = b""
cdef inline object extend(object buf, const char* at, size_t length):
cdef Py_ssize_t s
cdef char* ptr
s = PyByteArray_Size(buf)
PyByteArray_Resize(buf, s + length)
ptr = PyByteArray_AsString(buf)
memcpy(ptr + s, at, length)
DEF METHODS_COUNT = 46;
cdef list _http_method = []
for i in range(METHODS_COUNT):
_http_method.append(
cparser.llhttp_method_name(<cparser.llhttp_method_t> i).decode('ascii'))
cdef inline str http_method_str(int i):
if i < METHODS_COUNT:
return <str>_http_method[i]
else:
return "<unknown>"
cdef inline object find_header(bytes raw_header):
cdef Py_ssize_t size
cdef char *buf
cdef int idx
PyBytes_AsStringAndSize(raw_header, &buf, &size)
idx = _find_header.find_header(buf, size)
if idx == -1:
return raw_header.decode('utf-8', 'surrogateescape')
return headers[idx]
@cython.freelist(DEFAULT_FREELIST_SIZE)
cdef class RawRequestMessage:
cdef readonly str method
cdef readonly str path
cdef readonly object version # HttpVersion
cdef readonly object headers # CIMultiDict
cdef readonly object raw_headers # tuple
cdef readonly object should_close
cdef readonly object compression
cdef readonly object upgrade
cdef readonly object chunked
cdef readonly object url # yarl.URL
def __init__(self, method, path, version, headers, raw_headers,
should_close, compression, upgrade, chunked, url):
self.method = method
self.path = path
self.version = version
self.headers = headers
self.raw_headers = raw_headers
self.should_close = should_close
self.compression = compression
self.upgrade = upgrade
self.chunked = chunked
self.url = url
def __repr__(self):
info = []
info.append(("method", self.method))
info.append(("path", self.path))
info.append(("version", self.version))
info.append(("headers", self.headers))
info.append(("raw_headers", self.raw_headers))
info.append(("should_close", self.should_close))
info.append(("compression", self.compression))
info.append(("upgrade", self.upgrade))
info.append(("chunked", self.chunked))
info.append(("url", self.url))
sinfo = ', '.join(name + '=' + repr(val) for name, val in info)
return '<RawRequestMessage(' + sinfo + ')>'
def _replace(self, **dct):
cdef RawRequestMessage ret
ret = _new_request_message(self.method,
self.path,
self.version,
self.headers,
self.raw_headers,
self.should_close,
self.compression,
self.upgrade,
self.chunked,
self.url)
if "method" in dct:
ret.method = dct["method"]
if "path" in dct:
ret.path = dct["path"]
if "version" in dct:
ret.version = dct["version"]
if "headers" in dct:
ret.headers = dct["headers"]
if "raw_headers" in dct:
ret.raw_headers = dct["raw_headers"]
if "should_close" in dct:
ret.should_close = dct["should_close"]
if "compression" in dct:
ret.compression = dct["compression"]
if "upgrade" in dct:
ret.upgrade = dct["upgrade"]
if "chunked" in dct:
ret.chunked = dct["chunked"]
if "url" in dct:
ret.url = dct["url"]
return ret
cdef _new_request_message(str method,
str path,
object version,
object headers,
object raw_headers,
bint should_close,
object compression,
bint upgrade,
bint chunked,
object url):
cdef RawRequestMessage ret
ret = RawRequestMessage.__new__(RawRequestMessage)
ret.method = method
ret.path = path
ret.version = version
ret.headers = headers
ret.raw_headers = raw_headers
ret.should_close = should_close
ret.compression = compression
ret.upgrade = upgrade
ret.chunked = chunked
ret.url = url
return ret
@cython.freelist(DEFAULT_FREELIST_SIZE)
cdef class RawResponseMessage:
cdef readonly object version # HttpVersion
cdef readonly int code
cdef readonly str reason
cdef readonly object headers # CIMultiDict
cdef readonly object raw_headers # tuple
cdef readonly object should_close
cdef readonly object compression
cdef readonly object upgrade
cdef readonly object chunked
def __init__(self, version, code, reason, headers, raw_headers,
should_close, compression, upgrade, chunked):
self.version = version
self.code = code
self.reason = reason
self.headers = headers
self.raw_headers = raw_headers
self.should_close = should_close
self.compression = compression
self.upgrade = upgrade
self.chunked = chunked
def __repr__(self):
info = []
info.append(("version", self.version))
info.append(("code", self.code))
info.append(("reason", self.reason))
info.append(("headers", self.headers))
info.append(("raw_headers", self.raw_headers))
info.append(("should_close", self.should_close))
info.append(("compression", self.compression))
info.append(("upgrade", self.upgrade))
info.append(("chunked", self.chunked))
sinfo = ', '.join(name + '=' + repr(val) for name, val in info)
return '<RawResponseMessage(' + sinfo + ')>'
cdef _new_response_message(object version,
int code,
str reason,
object headers,
object raw_headers,
bint should_close,
object compression,
bint upgrade,
bint chunked):
cdef RawResponseMessage ret
ret = RawResponseMessage.__new__(RawResponseMessage)
ret.version = version
ret.code = code
ret.reason = reason
ret.headers = headers
ret.raw_headers = raw_headers
ret.should_close = should_close
ret.compression = compression
ret.upgrade = upgrade
ret.chunked = chunked
return ret
@cython.internal
cdef class HttpParser:
cdef:
cparser.llhttp_t* _cparser
cparser.llhttp_settings_t* _csettings
bytes _raw_name
object _name
bytes _raw_value
bint _has_value
object _protocol
object _loop
object _timer
size_t _max_line_size
size_t _max_field_size
size_t _max_headers
bint _response_with_body
bint _read_until_eof
bint _started
object _url
bytearray _buf
str _path
str _reason
list _headers
list _raw_headers
bint _upgraded
list _messages
object _payload
bint _payload_error
object _payload_exception
object _last_error
bint _auto_decompress
int _limit
str _content_encoding
Py_buffer py_buf
def __cinit__(self):
self._cparser = <cparser.llhttp_t*> \
PyMem_Malloc(sizeof(cparser.llhttp_t))
if self._cparser is NULL:
raise MemoryError()
self._csettings = <cparser.llhttp_settings_t*> \
PyMem_Malloc(sizeof(cparser.llhttp_settings_t))
if self._csettings is NULL:
raise MemoryError()
def __dealloc__(self):
PyMem_Free(self._cparser)
PyMem_Free(self._csettings)
cdef _init(
self, cparser.llhttp_type mode,
object protocol, object loop, int limit,
object timer=None,
size_t max_line_size=8190, size_t max_headers=32768,
size_t max_field_size=8190, payload_exception=None,
bint response_with_body=True, bint read_until_eof=False,
bint auto_decompress=True,
):
cparser.llhttp_settings_init(self._csettings)
cparser.llhttp_init(self._cparser, mode, self._csettings)
self._cparser.data = <void*>self
self._cparser.content_length = 0
self._protocol = protocol
self._loop = loop
self._timer = timer
self._buf = bytearray()
self._payload = None
self._payload_error = 0
self._payload_exception = payload_exception
self._messages = []
self._raw_name = EMPTY_BYTES
self._raw_value = EMPTY_BYTES
self._has_value = False
self._max_line_size = max_line_size
self._max_headers = max_headers
self._max_field_size = max_field_size
self._response_with_body = response_with_body
self._read_until_eof = read_until_eof
self._upgraded = False
self._auto_decompress = auto_decompress
self._content_encoding = None
self._csettings.on_url = cb_on_url
self._csettings.on_status = cb_on_status
self._csettings.on_header_field = cb_on_header_field
self._csettings.on_header_value = cb_on_header_value
self._csettings.on_headers_complete = cb_on_headers_complete
self._csettings.on_body = cb_on_body
self._csettings.on_message_begin = cb_on_message_begin
self._csettings.on_message_complete = cb_on_message_complete
self._csettings.on_chunk_header = cb_on_chunk_header
self._csettings.on_chunk_complete = cb_on_chunk_complete
self._last_error = None
self._limit = limit
cdef _process_header(self):
cdef str value
if self._raw_name is not EMPTY_BYTES:
name = find_header(self._raw_name)
value = self._raw_value.decode('utf-8', 'surrogateescape')
self._headers.append((name, value))
if name is CONTENT_ENCODING:
self._content_encoding = value
self._has_value = False
self._raw_headers.append((self._raw_name, self._raw_value))
self._raw_name = EMPTY_BYTES
self._raw_value = EMPTY_BYTES
cdef _on_header_field(self, char* at, size_t length):
if self._has_value:
self._process_header()
if self._raw_name is EMPTY_BYTES:
self._raw_name = at[:length]
else:
self._raw_name += at[:length]
cdef _on_header_value(self, char* at, size_t length):
if self._raw_value is EMPTY_BYTES:
self._raw_value = at[:length]
else:
self._raw_value += at[:length]
self._has_value = True
cdef _on_headers_complete(self):
self._process_header()
should_close = not cparser.llhttp_should_keep_alive(self._cparser)
upgrade = self._cparser.upgrade
chunked = self._cparser.flags & cparser.F_CHUNKED
raw_headers = tuple(self._raw_headers)
headers = CIMultiDictProxy(CIMultiDict(self._headers))
if self._cparser.type == cparser.HTTP_REQUEST:
h_upg = headers.get("upgrade", "")
allowed = upgrade and h_upg.isascii() and h_upg.lower() in ALLOWED_UPGRADES
if allowed or self._cparser.method == cparser.HTTP_CONNECT:
self._upgraded = True
else:
if upgrade and self._cparser.status_code == 101:
self._upgraded = True
# do not support old websocket spec
if SEC_WEBSOCKET_KEY1 in headers:
raise InvalidHeader(SEC_WEBSOCKET_KEY1)
encoding = None
enc = self._content_encoding
if enc is not None:
self._content_encoding = None
if enc.isascii() and enc.lower() in {"gzip", "deflate", "br", "zstd"}:
encoding = enc
if self._cparser.type == cparser.HTTP_REQUEST:
method = http_method_str(self._cparser.method)
msg = _new_request_message(
method, self._path,
self.http_version(), headers, raw_headers,
should_close, encoding, upgrade, chunked, self._url)
else:
msg = _new_response_message(
self.http_version(), self._cparser.status_code, self._reason,
headers, raw_headers, should_close, encoding,
upgrade, chunked)
if (
ULLONG_MAX > self._cparser.content_length > 0 or chunked or
self._cparser.method == cparser.HTTP_CONNECT or
(self._cparser.status_code >= 199 and
self._cparser.content_length == 0 and
self._read_until_eof)
):
payload = StreamReader(
self._protocol, timer=self._timer, loop=self._loop,
limit=self._limit)
else:
payload = EMPTY_PAYLOAD
self._payload = payload
if encoding is not None and self._auto_decompress:
self._payload = DeflateBuffer(payload, encoding)
if not self._response_with_body:
payload = EMPTY_PAYLOAD
self._messages.append((msg, payload))
cdef _on_message_complete(self):
self._payload.feed_eof()
self._payload = None
cdef _on_chunk_header(self):
self._payload.begin_http_chunk_receiving()
cdef _on_chunk_complete(self):
self._payload.end_http_chunk_receiving()
cdef object _on_status_complete(self):
pass
cdef inline http_version(self):
cdef cparser.llhttp_t* parser = self._cparser
if parser.http_major == 1:
if parser.http_minor == 0:
return HttpVersion10
elif parser.http_minor == 1:
return HttpVersion11
return HttpVersion(parser.http_major, parser.http_minor)
### Public API ###
def feed_eof(self):
cdef bytes desc
if self._payload is not None:
if self._cparser.flags & cparser.F_CHUNKED:
raise TransferEncodingError(
"Not enough data to satisfy transfer length header.")
elif self._cparser.flags & cparser.F_CONTENT_LENGTH:
raise ContentLengthError(
"Not enough data to satisfy content length header.")
elif cparser.llhttp_get_errno(self._cparser) != cparser.HPE_OK:
desc = cparser.llhttp_get_error_reason(self._cparser)
raise PayloadEncodingError(desc.decode('latin-1'))
else:
self._payload.feed_eof()
elif self._started:
self._on_headers_complete()
if self._messages:
return self._messages[-1][0]
def feed_data(self, data):
cdef:
size_t data_len
size_t nb
cdef cparser.llhttp_errno_t errno
PyObject_GetBuffer(data, &self.py_buf, PyBUF_SIMPLE)
data_len = <size_t>self.py_buf.len
errno = cparser.llhttp_execute(
self._cparser,
<char*>self.py_buf.buf,
data_len)
if errno is cparser.HPE_PAUSED_UPGRADE:
cparser.llhttp_resume_after_upgrade(self._cparser)
nb = cparser.llhttp_get_error_pos(self._cparser) - <char*>self.py_buf.buf
PyBuffer_Release(&self.py_buf)
if errno not in (cparser.HPE_OK, cparser.HPE_PAUSED_UPGRADE):
if self._payload_error == 0:
if self._last_error is not None:
ex = self._last_error
self._last_error = None
else:
after = cparser.llhttp_get_error_pos(self._cparser)
before = data[:after - <char*>self.py_buf.buf]
after_b = after.split(b"\r\n", 1)[0]
before = before.rsplit(b"\r\n", 1)[-1]
data = before + after_b
pointer = " " * (len(repr(before))-1) + "^"
ex = parser_error_from_errno(self._cparser, data, pointer)
self._payload = None
raise ex
if self._messages:
messages = self._messages
self._messages = []
else:
messages = ()
if self._upgraded:
return messages, True, data[nb:]
else:
return messages, False, b""
def set_upgraded(self, val):
self._upgraded = val
cdef class HttpRequestParser(HttpParser):
def __init__(
self, protocol, loop, int limit, timer=None,
size_t max_line_size=8190, size_t max_headers=32768,
size_t max_field_size=8190, payload_exception=None,
bint response_with_body=True, bint read_until_eof=False,
bint auto_decompress=True,
):
self._init(cparser.HTTP_REQUEST, protocol, loop, limit, timer,
max_line_size, max_headers, max_field_size,
payload_exception, response_with_body, read_until_eof,
auto_decompress)
cdef object _on_status_complete(self):
cdef int idx1, idx2
if not self._buf:
return
self._path = self._buf.decode('utf-8', 'surrogateescape')
try:
idx3 = len(self._path)
if self._cparser.method == cparser.HTTP_CONNECT:
# authority-form,
# https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.3
self._url = URL.build(authority=self._path, encoded=True)
elif idx3 > 1 and self._path[0] == '/':
# origin-form,
# https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.1
idx1 = self._path.find("?")
if idx1 == -1:
query = ""
idx2 = self._path.find("#")
if idx2 == -1:
path = self._path
fragment = ""
else:
path = self._path[0: idx2]
fragment = self._path[idx2+1:]
else:
path = self._path[0:idx1]
idx1 += 1
idx2 = self._path.find("#", idx1+1)
if idx2 == -1:
query = self._path[idx1:]
fragment = ""
else:
query = self._path[idx1: idx2]
fragment = self._path[idx2+1:]
self._url = URL.build(
path=path,
query_string=query,
fragment=fragment,
encoded=True,
)
else:
# absolute-form for proxy maybe,
# https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.2
self._url = URL(self._path, encoded=True)
finally:
PyByteArray_Resize(self._buf, 0)
cdef class HttpResponseParser(HttpParser):
def __init__(
self, protocol, loop, int limit, timer=None,
size_t max_line_size=8190, size_t max_headers=32768,
size_t max_field_size=8190, payload_exception=None,
bint response_with_body=True, bint read_until_eof=False,
bint auto_decompress=True
):
self._init(cparser.HTTP_RESPONSE, protocol, loop, limit, timer,
max_line_size, max_headers, max_field_size,
payload_exception, response_with_body, read_until_eof,
auto_decompress)
# Use strict parsing on dev mode, so users are warned about broken servers.
if not DEBUG:
cparser.llhttp_set_lenient_headers(self._cparser, 1)
cparser.llhttp_set_lenient_optional_cr_before_lf(self._cparser, 1)
cparser.llhttp_set_lenient_spaces_after_chunk_size(self._cparser, 1)
cdef object _on_status_complete(self):
if self._buf:
self._reason = self._buf.decode('utf-8', 'surrogateescape')
PyByteArray_Resize(self._buf, 0)
else:
self._reason = self._reason or ''
cdef int cb_on_message_begin(cparser.llhttp_t* parser) except -1:
cdef HttpParser pyparser = <HttpParser>parser.data
pyparser._started = True
pyparser._headers = []
pyparser._raw_headers = []
PyByteArray_Resize(pyparser._buf, 0)
pyparser._path = None
pyparser._reason = None
return 0
cdef int cb_on_url(cparser.llhttp_t* parser,
const char *at, size_t length) except -1:
cdef HttpParser pyparser = <HttpParser>parser.data
try:
if length > pyparser._max_line_size:
raise LineTooLong(
'Status line is too long', pyparser._max_line_size, length)
extend(pyparser._buf, at, length)
except BaseException as ex:
pyparser._last_error = ex
return -1
else:
return 0
cdef int cb_on_status(cparser.llhttp_t* parser,
const char *at, size_t length) except -1:
cdef HttpParser pyparser = <HttpParser>parser.data
cdef str reason
try:
if length > pyparser._max_line_size:
raise LineTooLong(
'Status line is too long', pyparser._max_line_size, length)
extend(pyparser._buf, at, length)
except BaseException as ex:
pyparser._last_error = ex
return -1
else:
return 0
cdef int cb_on_header_field(cparser.llhttp_t* parser,
const char *at, size_t length) except -1:
cdef HttpParser pyparser = <HttpParser>parser.data
cdef Py_ssize_t size
try:
pyparser._on_status_complete()
size = len(pyparser._raw_name) + length
if size > pyparser._max_field_size:
raise LineTooLong(
'Header name is too long', pyparser._max_field_size, size)
pyparser._on_header_field(at, length)
except BaseException as ex:
pyparser._last_error = ex
return -1
else:
return 0
cdef int cb_on_header_value(cparser.llhttp_t* parser,
const char *at, size_t length) except -1:
cdef HttpParser pyparser = <HttpParser>parser.data
cdef Py_ssize_t size
try:
size = len(pyparser._raw_value) + length
if size > pyparser._max_field_size:
raise LineTooLong(
'Header value is too long', pyparser._max_field_size, size)
pyparser._on_header_value(at, length)
except BaseException as ex:
pyparser._last_error = ex
return -1
else:
return 0
cdef int cb_on_headers_complete(cparser.llhttp_t* parser) except -1:
cdef HttpParser pyparser = <HttpParser>parser.data
try:
pyparser._on_status_complete()
pyparser._on_headers_complete()
except BaseException as exc:
pyparser._last_error = exc
return -1
else:
if pyparser._upgraded or pyparser._cparser.method == cparser.HTTP_CONNECT:
return 2
else:
return 0
cdef int cb_on_body(cparser.llhttp_t* parser,
const char *at, size_t length) except -1:
cdef HttpParser pyparser = <HttpParser>parser.data
cdef bytes body = at[:length]
try:
pyparser._payload.feed_data(body, length)
except BaseException as underlying_exc:
reraised_exc = underlying_exc
if pyparser._payload_exception is not None:
reraised_exc = pyparser._payload_exception(str(underlying_exc))
set_exception(pyparser._payload, reraised_exc, underlying_exc)
pyparser._payload_error = 1
return -1
else:
return 0
cdef int cb_on_message_complete(cparser.llhttp_t* parser) except -1:
cdef HttpParser pyparser = <HttpParser>parser.data
try:
pyparser._started = False
pyparser._on_message_complete()
except BaseException as exc:
pyparser._last_error = exc
return -1
else:
return 0
cdef int cb_on_chunk_header(cparser.llhttp_t* parser) except -1:
cdef HttpParser pyparser = <HttpParser>parser.data
try:
pyparser._on_chunk_header()
except BaseException as exc:
pyparser._last_error = exc
return -1
else:
return 0
cdef int cb_on_chunk_complete(cparser.llhttp_t* parser) except -1:
cdef HttpParser pyparser = <HttpParser>parser.data
try:
pyparser._on_chunk_complete()
except BaseException as exc:
pyparser._last_error = exc
return -1
else:
return 0
cdef parser_error_from_errno(cparser.llhttp_t* parser, data, pointer):
cdef cparser.llhttp_errno_t errno = cparser.llhttp_get_errno(parser)
cdef bytes desc = cparser.llhttp_get_error_reason(parser)
err_msg = "{}:\n\n {!r}\n {}".format(desc.decode("latin-1"), data, pointer)
if errno in {cparser.HPE_CB_MESSAGE_BEGIN,
cparser.HPE_CB_HEADERS_COMPLETE,
cparser.HPE_CB_MESSAGE_COMPLETE,
cparser.HPE_CB_CHUNK_HEADER,
cparser.HPE_CB_CHUNK_COMPLETE,
cparser.HPE_INVALID_CONSTANT,
cparser.HPE_INVALID_HEADER_TOKEN,
cparser.HPE_INVALID_CONTENT_LENGTH,
cparser.HPE_INVALID_CHUNK_SIZE,
cparser.HPE_INVALID_EOF_STATE,
cparser.HPE_INVALID_TRANSFER_ENCODING}:
return BadHttpMessage(err_msg)
elif errno == cparser.HPE_INVALID_METHOD:
return BadHttpMethod(error=err_msg)
elif errno in {cparser.HPE_INVALID_STATUS,
cparser.HPE_INVALID_VERSION}:
return BadStatusLine(error=err_msg)
elif errno == cparser.HPE_INVALID_URL:
return InvalidURLError(err_msg)
return BadHttpMessage(err_msg)

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venv/lib/python3.12/site-packages/aiohttp/_http_writer.cpython-312-x86_64-linux-gnu.so Executable file
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venv/lib/python3.12/site-packages/aiohttp/_http_writer.pyx Normal file
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@ -0,0 +1,162 @@
from cpython.bytes cimport PyBytes_FromStringAndSize
from cpython.exc cimport PyErr_NoMemory
from cpython.mem cimport PyMem_Free, PyMem_Malloc, PyMem_Realloc
from cpython.object cimport PyObject_Str
from libc.stdint cimport uint8_t, uint64_t
from libc.string cimport memcpy
from multidict import istr
DEF BUF_SIZE = 16 * 1024 # 16KiB
cdef object _istr = istr
# ----------------- writer ---------------------------
cdef struct Writer:
char *buf
Py_ssize_t size
Py_ssize_t pos
bint heap_allocated
cdef inline void _init_writer(Writer* writer, char *buf):
writer.buf = buf
writer.size = BUF_SIZE
writer.pos = 0
writer.heap_allocated = 0
cdef inline void _release_writer(Writer* writer):
if writer.heap_allocated:
PyMem_Free(writer.buf)
cdef inline int _write_byte(Writer* writer, uint8_t ch):
cdef char * buf
cdef Py_ssize_t size
if writer.pos == writer.size:
# reallocate
size = writer.size + BUF_SIZE
if not writer.heap_allocated:
buf = <char*>PyMem_Malloc(size)
if buf == NULL:
PyErr_NoMemory()
return -1
memcpy(buf, writer.buf, writer.size)
else:
buf = <char*>PyMem_Realloc(writer.buf, size)
if buf == NULL:
PyErr_NoMemory()
return -1
writer.buf = buf
writer.size = size
writer.heap_allocated = 1
writer.buf[writer.pos] = <char>ch
writer.pos += 1
return 0
cdef inline int _write_utf8(Writer* writer, Py_UCS4 symbol):
cdef uint64_t utf = <uint64_t> symbol
if utf < 0x80:
return _write_byte(writer, <uint8_t>utf)
elif utf < 0x800:
if _write_byte(writer, <uint8_t>(0xc0 | (utf >> 6))) < 0:
return -1
return _write_byte(writer, <uint8_t>(0x80 | (utf & 0x3f)))
elif 0xD800 <= utf <= 0xDFFF:
# surogate pair, ignored
return 0
elif utf < 0x10000:
if _write_byte(writer, <uint8_t>(0xe0 | (utf >> 12))) < 0:
return -1
if _write_byte(writer, <uint8_t>(0x80 | ((utf >> 6) & 0x3f))) < 0:
return -1
return _write_byte(writer, <uint8_t>(0x80 | (utf & 0x3f)))
elif utf > 0x10FFFF:
# symbol is too large
return 0
else:
if _write_byte(writer, <uint8_t>(0xf0 | (utf >> 18))) < 0:
return -1
if _write_byte(writer,
<uint8_t>(0x80 | ((utf >> 12) & 0x3f))) < 0:
return -1
if _write_byte(writer,
<uint8_t>(0x80 | ((utf >> 6) & 0x3f))) < 0:
return -1
return _write_byte(writer, <uint8_t>(0x80 | (utf & 0x3f)))
cdef inline int _write_str(Writer* writer, str s):
cdef Py_UCS4 ch
for ch in s:
if _write_utf8(writer, ch) < 0:
return -1
cdef inline int _write_str_raise_on_nlcr(Writer* writer, object s):
cdef Py_UCS4 ch
cdef str out_str
if type(s) is str:
out_str = <str>s
elif type(s) is _istr:
out_str = PyObject_Str(s)
elif not isinstance(s, str):
raise TypeError("Cannot serialize non-str key {!r}".format(s))
else:
out_str = str(s)
for ch in out_str:
if ch == 0x0D or ch == 0x0A:
raise ValueError(
"Newline or carriage return detected in headers. "
"Potential header injection attack."
)
if _write_utf8(writer, ch) < 0:
return -1
# --------------- _serialize_headers ----------------------
def _serialize_headers(str status_line, headers):
cdef Writer writer
cdef object key
cdef object val
cdef char buf[BUF_SIZE]
_init_writer(&writer, buf)
try:
if _write_str(&writer, status_line) < 0:
raise
if _write_byte(&writer, b'\r') < 0:
raise
if _write_byte(&writer, b'\n') < 0:
raise
for key, val in headers.items():
if _write_str_raise_on_nlcr(&writer, key) < 0:
raise
if _write_byte(&writer, b':') < 0:
raise
if _write_byte(&writer, b' ') < 0:
raise
if _write_str_raise_on_nlcr(&writer, val) < 0:
raise
if _write_byte(&writer, b'\r') < 0:
raise
if _write_byte(&writer, b'\n') < 0:
raise
if _write_byte(&writer, b'\r') < 0:
raise
if _write_byte(&writer, b'\n') < 0:
raise
return PyBytes_FromStringAndSize(writer.buf, writer.pos)
finally:
_release_writer(&writer)

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