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primeira versão transcreve audio

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# Chave da API do WhatsApp
WHATSAPP_API_KEY=your_whatsapp_api_key
# URL do Servidor WhatsApp (substituir pela URL correta da API que você está usando)
WHATSAPP_API_URL=https://api.whatsapp.com
# Instância do WhatsApp
WHATSAPP_INSTANCE=your_instance_id
# Chave da API para transcrição (Groq ou qualquer outro serviço que você utilizar)
GROQ_API_KEY=your_groq_api_key
# Host e porta do Redis (caso esteja utilizando)
REDIS_HOST=localhost
REDIS_PORT=6379

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.env
*.pyc

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3.10.11

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# don't import any costly modules
import sys
import os
is_pypy = '__pypy__' in sys.builtin_module_names
def warn_distutils_present():
if 'distutils' not in sys.modules:
return
if is_pypy and sys.version_info < (3, 7):
# PyPy for 3.6 unconditionally imports distutils, so bypass the warning
# https://foss.heptapod.net/pypy/pypy/-/blob/be829135bc0d758997b3566062999ee8b23872b4/lib-python/3/site.py#L250
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.")
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')
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):
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
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
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
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 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):
insert_shim()
def __exit__(self, exc, value, tb):
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

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__import__('_distutils_hack').do_override()

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pip

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Metadata-Version: 2.1
Name: aiofiles
Version: 0.8.0
Summary: File support for asyncio.
License: Apache-2.0
Author: Tin Tvrtkovic
Author-email: tinchester@gmail.com
Requires-Python: >=3.6,<4.0
Classifier: License :: OSI Approved :: Apache Software License
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
Description-Content-Type: text/x-rst
aiofiles: file support for asyncio
==================================
.. image:: https://img.shields.io/pypi/v/aiofiles.svg
:target: https://pypi.python.org/pypi/aiofiles
.. image:: https://travis-ci.org/Tinche/aiofiles.svg?branch=master
:target: https://travis-ci.org/Tinche/aiofiles
.. image:: https://codecov.io/gh/Tinche/aiofiles/branch/master/graph/badge.svg
:target: https://codecov.io/gh/Tinche/aiofiles
.. image:: https://img.shields.io/pypi/pyversions/aiofiles.svg
:target: https://github.com/Tinche/aiofiles
:alt: Supported Python versions
**aiofiles** is an Apache2 licensed library, written in Python, for handling local
disk files in asyncio applications.
Ordinary local file IO is blocking, and cannot easily and portably made
asynchronous. This means doing file IO may interfere with asyncio applications,
which shouldn't block the executing thread. aiofiles helps with this by
introducing asynchronous versions of files that support delegating operations to
a separate thread pool.
.. code-block:: python
async with aiofiles.open('filename', mode='r') as f:
contents = await f.read()
print(contents)
'My file contents'
Asynchronous iteration is also supported.
.. code-block:: python
async with aiofiles.open('filename') as f:
async for line in f:
...
Asynchronous interface to tempfile module.
.. code-block:: python
async with aiofiles.tempfile.TemporaryFile('wb') as f:
await f.write(b'Hello, World!')
Features
--------
- a file API very similar to Python's standard, blocking API
- support for buffered and unbuffered binary files, and buffered text files
- support for ``async``/``await`` (:PEP:`492`) constructs
- async interface to tempfile module
Installation
------------
To install aiofiles, simply:
.. code-block:: bash
$ pip install aiofiles
Usage
-----
Files are opened using the ``aiofiles.open()`` coroutine, which in addition to
mirroring the builtin ``open`` accepts optional ``loop`` and ``executor``
arguments. If ``loop`` is absent, the default loop will be used, as per the
set asyncio policy. If ``executor`` is not specified, the default event loop
executor will be used.
In case of success, an asynchronous file object is returned with an
API identical to an ordinary file, except the following methods are coroutines
and delegate to an executor:
* ``close``
* ``flush``
* ``isatty``
* ``read``
* ``readall``
* ``read1``
* ``readinto``
* ``readline``
* ``readlines``
* ``seek``
* ``seekable``
* ``tell``
* ``truncate``
* ``writable``
* ``write``
* ``writelines``
In case of failure, one of the usual exceptions will be raised.
The ``aiofiles.os`` module contains executor-enabled coroutine versions of
several useful ``os`` functions that deal with files:
* ``stat``
* ``sendfile``
* ``rename``
* ``replace``
* ``remove``
* ``mkdir``
* ``makedirs``
* ``rmdir``
* ``removedirs``
* ``path.exists``
* ``path.isfile``
* ``path.isdir``
* ``path.getsize``
* ``path.getatime``
* ``path.getctime``
* ``path.samefile``
* ``path.sameopenfile``
Tempfile
~~~~~~~~
**aiofiles.tempfile** implements the following interfaces:
- TemporaryFile
- NamedTemporaryFile
- SpooledTemporaryFile
- TemporaryDirectory
Results return wrapped with a context manager allowing use with async with and async for.
.. code-block:: python
async with aiofiles.tempfile.NamedTemporaryFile('wb+') as f:
await f.write(b'Line1\n Line2')
await f.seek(0)
async for line in f:
print(line)
async with aiofiles.tempfile.TemporaryDirectory() as d:
filename = os.path.join(d, "file.ext")
Writing tests for aiofiles
~~~~~~~~~~~~~~~~~~~~~~~~~~
Real file IO can be mocked by patching ``aiofiles.threadpool.sync_open``
as desired. The return type also needs to be registered with the
``aiofiles.threadpool.wrap`` dispatcher:
.. code-block:: python
aiofiles.threadpool.wrap.register(mock.MagicMock)(
lambda *args, **kwargs: threadpool.AsyncBufferedIOBase(*args, **kwargs))
async def test_stuff():
data = 'data'
mock_file = mock.MagicMock()
with mock.patch('aiofiles.threadpool.sync_open', return_value=mock_file) as mock_open:
async with aiofiles.open('filename', 'w') as f:
await f.write(data)
mock_file.write.assert_called_once_with(data)
History
~~~~~~~
0.8.0 (2021-11-27)
``````````````````
* aiofiles is now tested on Python 3.10.
* Added ``aiofiles.os.replace``.
`#107 <https://github.com/Tinche/aiofiles/pull/107>`_
* Added ``aiofiles.os.{makedirs, removedirs}``.
* Added ``aiofiles.os.path.{exists, isfile, isdir, getsize, getatime, getctime, samefile, sameopenfile}``.
`#63 <https://github.com/Tinche/aiofiles/pull/63>`_
* Added `suffix`, `prefix`, `dir` args to ``aiofiles.tempfile.TemporaryDirectory``.
`#116 <https://github.com/Tinche/aiofiles/pull/116>`_
0.7.0 (2021-05-17)
``````````````````
- Added the ``aiofiles.tempfile`` module for async temporary files.
`#56 <https://github.com/Tinche/aiofiles/pull/56>`_
- Switched to Poetry and GitHub actions.
- Dropped 3.5 support.
0.6.0 (2020-10-27)
``````````````````
- `aiofiles` is now tested on ppc64le.
- Added `name` and `mode` properties to async file objects.
`#82 <https://github.com/Tinche/aiofiles/pull/82>`_
- Fixed a DeprecationWarning internally.
`#75 <https://github.com/Tinche/aiofiles/pull/75>`_
- Python 3.9 support and tests.
0.5.0 (2020-04-12)
``````````````````
- Python 3.8 support. Code base modernization (using ``async/await`` instead of ``asyncio.coroutine``/``yield from``).
- Added ``aiofiles.os.remove``, ``aiofiles.os.rename``, ``aiofiles.os.mkdir``, ``aiofiles.os.rmdir``.
`#62 <https://github.com/Tinche/aiofiles/pull/62>`_
0.4.0 (2018-08-11)
``````````````````
- Python 3.7 support.
- Removed Python 3.3/3.4 support. If you use these versions, stick to aiofiles 0.3.x.
0.3.2 (2017-09-23)
``````````````````
- The LICENSE is now included in the sdist.
`#31 <https://github.com/Tinche/aiofiles/pull/31>`_
0.3.1 (2017-03-10)
``````````````````
- Introduced a changelog.
- ``aiofiles.os.sendfile`` will now work if the standard ``os`` module contains a ``sendfile`` function.
Contributing
~~~~~~~~~~~~
Contributions are very welcome. Tests can be run with ``tox``, please ensure
the coverage at least stays the same before you submit a pull request.

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aiofiles/threadpool/text.py,sha256=dNweKCxpwRgfqA6XCiWYDDddOTa0lbzH-Fh5o3rho-8,665
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0
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Wheel-Version: 1.0
Generator: poetry 1.1.0a6
Root-Is-Purelib: true
Tag: py3-none-any

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"""Utilities for asyncio-friendly file handling."""
from .threadpool import open
from . import tempfile
__all__ = ["open", "tempfile"]

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"""Various base classes."""
from types import coroutine
from collections.abc import Coroutine
class AsyncBase:
def __init__(self, file, loop, executor):
self._file = file
self._loop = loop
self._executor = executor
def __aiter__(self):
"""We are our own iterator."""
return self
def __repr__(self):
return super().__repr__() + " wrapping " + repr(self._file)
async def __anext__(self):
"""Simulate normal file iteration."""
line = await self.readline()
if line:
return line
else:
raise StopAsyncIteration
class _ContextManager(Coroutine):
__slots__ = ("_coro", "_obj")
def __init__(self, coro):
self._coro = coro
self._obj = None
def send(self, value):
return self._coro.send(value)
def throw(self, typ, val=None, tb=None):
if val is None:
return self._coro.throw(typ)
elif tb is None:
return self._coro.throw(typ, val)
else:
return self._coro.throw(typ, val, tb)
def close(self):
return self._coro.close()
@property
def gi_frame(self):
return self._coro.gi_frame
@property
def gi_running(self):
return self._coro.gi_running
@property
def gi_code(self):
return self._coro.gi_code
def __next__(self):
return self.send(None)
@coroutine
def __iter__(self):
resp = yield from self._coro
return resp
def __await__(self):
resp = yield from self._coro
return resp
async def __anext__(self):
resp = await self._coro
return resp
async def __aenter__(self):
self._obj = await self._coro
return self._obj
async def __aexit__(self, exc_type, exc, tb):
self._obj.close()
self._obj = None
class AiofilesContextManager(_ContextManager):
"""An adjusted async context manager for aiofiles."""
async def __aexit__(self, exc_type, exc_val, exc_tb):
await self._obj.close()
self._obj = None

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"""Async executor versions of file functions from the os module."""
import asyncio
from functools import partial, wraps
import os
def wrap(func):
@wraps(func)
async def run(*args, loop=None, executor=None, **kwargs):
if loop is None:
loop = asyncio.get_event_loop()
pfunc = partial(func, *args, **kwargs)
return await loop.run_in_executor(executor, pfunc)
return run
from . import ospath as path
stat = wrap(os.stat)
rename = wrap(os.rename)
replace = wrap(os.replace)
remove = wrap(os.remove)
mkdir = wrap(os.mkdir)
makedirs = wrap(os.makedirs)
rmdir = wrap(os.rmdir)
removedirs = wrap(os.removedirs)
if hasattr(os, "sendfile"):
sendfile = wrap(os.sendfile)

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"""Async executor versions of file functions from the os.path module."""
from .os import wrap
from os import path
exists = wrap(path.exists)
isfile = wrap(path.isfile)
isdir = wrap(path.isdir)
getsize = wrap(path.getsize)
getmtime = wrap(path.getmtime)
getatime = wrap(path.getatime)
getctime = wrap(path.getctime)
samefile = wrap(path.samefile)
sameopenfile = wrap(path.sameopenfile)

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# Imports
import asyncio
from tempfile import (
TemporaryFile as syncTemporaryFile,
NamedTemporaryFile as syncNamedTemporaryFile,
SpooledTemporaryFile as syncSpooledTemporaryFile,
TemporaryDirectory as syncTemporaryDirectory,
_TemporaryFileWrapper as syncTemporaryFileWrapper,
)
from io import FileIO, TextIOBase, BufferedReader, BufferedWriter, BufferedRandom
from functools import partial, singledispatch
from ..base import AiofilesContextManager
from ..threadpool.text import AsyncTextIOWrapper
from ..threadpool.binary import AsyncBufferedIOBase, AsyncBufferedReader, AsyncFileIO
from .temptypes import AsyncSpooledTemporaryFile, AsyncTemporaryDirectory
__all__ = [
"NamedTemporaryFile",
"TemporaryFile",
"SpooledTemporaryFile",
"TemporaryDirectory",
]
# ================================================================
# Public methods for async open and return of temp file/directory
# objects with async interface
# ================================================================
def NamedTemporaryFile(
mode="w+b",
buffering=-1,
encoding=None,
newline=None,
suffix=None,
prefix=None,
dir=None,
delete=True,
loop=None,
executor=None,
):
"""Async open a named temporary file"""
return AiofilesContextManager(
_temporary_file(
named=True,
mode=mode,
buffering=buffering,
encoding=encoding,
newline=newline,
suffix=suffix,
prefix=prefix,
dir=dir,
delete=delete,
loop=loop,
executor=executor,
)
)
def TemporaryFile(
mode="w+b",
buffering=-1,
encoding=None,
newline=None,
suffix=None,
prefix=None,
dir=None,
loop=None,
executor=None,
):
"""Async open an unnamed temporary file"""
return AiofilesContextManager(
_temporary_file(
named=False,
mode=mode,
buffering=buffering,
encoding=encoding,
newline=newline,
suffix=suffix,
prefix=prefix,
dir=dir,
loop=loop,
executor=executor,
)
)
def SpooledTemporaryFile(
max_size=0,
mode="w+b",
buffering=-1,
encoding=None,
newline=None,
suffix=None,
prefix=None,
dir=None,
loop=None,
executor=None,
):
"""Async open a spooled temporary file"""
return AiofilesContextManager(
_spooled_temporary_file(
max_size=max_size,
mode=mode,
buffering=buffering,
encoding=encoding,
newline=newline,
suffix=suffix,
prefix=prefix,
dir=dir,
loop=loop,
executor=executor,
)
)
def TemporaryDirectory(suffix=None, prefix=None, dir=None, loop=None, executor=None):
"""Async open a temporary directory"""
return AiofilesContextManagerTempDir(
_temporary_directory(
suffix=suffix, prefix=prefix, dir=dir, loop=loop, executor=executor
)
)
# =========================================================
# Internal coroutines to open new temp files/directories
# =========================================================
async def _temporary_file(
named=True,
mode="w+b",
buffering=-1,
encoding=None,
newline=None,
suffix=None,
prefix=None,
dir=None,
delete=True,
loop=None,
executor=None,
max_size=0,
):
"""Async method to open a temporary file with async interface"""
if loop is None:
loop = asyncio.get_event_loop()
if named:
cb = partial(
syncNamedTemporaryFile,
mode=mode,
buffering=buffering,
encoding=encoding,
newline=newline,
suffix=suffix,
prefix=prefix,
dir=dir,
delete=delete,
)
else:
cb = partial(
syncTemporaryFile,
mode=mode,
buffering=buffering,
encoding=encoding,
newline=newline,
suffix=suffix,
prefix=prefix,
dir=dir,
)
f = await loop.run_in_executor(executor, cb)
# Wrap based on type of underlying IO object
if type(f) is syncTemporaryFileWrapper:
# _TemporaryFileWrapper was used (named files)
result = wrap(f.file, f, loop=loop, executor=executor)
# add delete property
result.delete = f.delete
return result
else:
# IO object was returned directly without wrapper
return wrap(f, f, loop=loop, executor=executor)
async def _spooled_temporary_file(
max_size=0,
mode="w+b",
buffering=-1,
encoding=None,
newline=None,
suffix=None,
prefix=None,
dir=None,
loop=None,
executor=None,
):
"""Open a spooled temporary file with async interface"""
if loop is None:
loop = asyncio.get_event_loop()
cb = partial(
syncSpooledTemporaryFile,
max_size=max_size,
mode=mode,
buffering=buffering,
encoding=encoding,
newline=newline,
suffix=suffix,
prefix=prefix,
dir=dir,
)
f = await loop.run_in_executor(executor, cb)
# Single interface provided by SpooledTemporaryFile for all modes
return AsyncSpooledTemporaryFile(f, loop=loop, executor=executor)
async def _temporary_directory(
suffix=None, prefix=None, dir=None, loop=None, executor=None
):
"""Async method to open a temporary directory with async interface"""
if loop is None:
loop = asyncio.get_event_loop()
cb = partial(syncTemporaryDirectory, suffix, prefix, dir)
f = await loop.run_in_executor(executor, cb)
return AsyncTemporaryDirectory(f, loop=loop, executor=executor)
class AiofilesContextManagerTempDir(AiofilesContextManager):
"""With returns the directory location, not the object (matching sync lib)"""
async def __aenter__(self):
self._obj = await self._coro
return self._obj.name
@singledispatch
def wrap(base_io_obj, file, *, loop=None, executor=None):
"""Wrap the object with interface based on type of underlying IO"""
raise TypeError("Unsupported IO type: {}".format(base_io_obj))
@wrap.register(TextIOBase)
def _(base_io_obj, file, *, loop=None, executor=None):
return AsyncTextIOWrapper(file, loop=loop, executor=executor)
@wrap.register(BufferedWriter)
def _(base_io_obj, file, *, loop=None, executor=None):
return AsyncBufferedIOBase(file, loop=loop, executor=executor)
@wrap.register(BufferedReader)
@wrap.register(BufferedRandom)
def _(base_io_obj, file, *, loop=None, executor=None):
return AsyncBufferedReader(file, loop=loop, executor=executor)
@wrap.register(FileIO)
def _(base_io_obj, file, *, loop=None, executor=None):
return AsyncFileIO(file, loop=loop, executor=executor)

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"""Async wrappers for spooled temp files and temp directory objects"""
# Imports
import asyncio
from types import coroutine
from ..base import AsyncBase
from ..threadpool.utils import (
delegate_to_executor,
proxy_property_directly,
cond_delegate_to_executor,
)
from functools import partial
@delegate_to_executor("fileno", "rollover")
@cond_delegate_to_executor(
"close",
"flush",
"isatty",
"newlines",
"read",
"readline",
"readlines",
"seek",
"tell",
"truncate",
)
@proxy_property_directly("closed", "encoding", "mode", "name", "softspace")
class AsyncSpooledTemporaryFile(AsyncBase):
"""Async wrapper for SpooledTemporaryFile class"""
async def _check(self):
if self._file._rolled:
return
max_size = self._file._max_size
if max_size and self._file.tell() > max_size:
await self.rollover()
async def write(self, s):
"""Implementation to anticipate rollover"""
if self._file._rolled:
cb = partial(self._file.write, s)
return await self._loop.run_in_executor(self._executor, cb)
else:
file = self._file._file # reference underlying base IO object
rv = file.write(s)
await self._check()
return rv
async def writelines(self, iterable):
"""Implementation to anticipate rollover"""
if self._file._rolled:
cb = partial(self._file.writelines, iterable)
return await self._loop.run_in_executor(self._executor, cb)
else:
file = self._file._file # reference underlying base IO object
rv = file.writelines(iterable)
await self._check()
return rv
@delegate_to_executor("cleanup")
@proxy_property_directly("name")
class AsyncTemporaryDirectory:
"""Async wrapper for TemporaryDirectory class"""
def __init__(self, file, loop, executor):
self._file = file
self._loop = loop
self._executor = executor
async def close(self):
await self.cleanup()

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"""Handle files using a thread pool executor."""
import asyncio
from types import coroutine
from io import (
FileIO,
TextIOBase,
BufferedReader,
BufferedWriter,
BufferedRandom,
)
from functools import partial, singledispatch
from .binary import AsyncBufferedIOBase, AsyncBufferedReader, AsyncFileIO
from .text import AsyncTextIOWrapper
from ..base import AiofilesContextManager
sync_open = open
__all__ = ("open",)
def open(
file,
mode="r",
buffering=-1,
encoding=None,
errors=None,
newline=None,
closefd=True,
opener=None,
*,
loop=None,
executor=None
):
return AiofilesContextManager(
_open(
file,
mode=mode,
buffering=buffering,
encoding=encoding,
errors=errors,
newline=newline,
closefd=closefd,
opener=opener,
loop=loop,
executor=executor,
)
)
@coroutine
def _open(
file,
mode="r",
buffering=-1,
encoding=None,
errors=None,
newline=None,
closefd=True,
opener=None,
*,
loop=None,
executor=None
):
"""Open an asyncio file."""
if loop is None:
loop = asyncio.get_event_loop()
cb = partial(
sync_open,
file,
mode=mode,
buffering=buffering,
encoding=encoding,
errors=errors,
newline=newline,
closefd=closefd,
opener=opener,
)
f = yield from loop.run_in_executor(executor, cb)
return wrap(f, loop=loop, executor=executor)
@singledispatch
def wrap(file, *, loop=None, executor=None):
raise TypeError("Unsupported io type: {}.".format(file))
@wrap.register(TextIOBase)
def _(file, *, loop=None, executor=None):
return AsyncTextIOWrapper(file, loop=loop, executor=executor)
@wrap.register(BufferedWriter)
def _(file, *, loop=None, executor=None):
return AsyncBufferedIOBase(file, loop=loop, executor=executor)
@wrap.register(BufferedReader)
@wrap.register(BufferedRandom)
def _(file, *, loop=None, executor=None):
return AsyncBufferedReader(file, loop=loop, executor=executor)
@wrap.register(FileIO)
def _(file, *, loop=None, executor=None):
return AsyncFileIO(file, loop, executor)

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from ..base import AsyncBase
from .utils import (
delegate_to_executor,
proxy_method_directly,
proxy_property_directly,
)
@delegate_to_executor(
"close",
"flush",
"isatty",
"read",
"read1",
"readinto",
"readline",
"readlines",
"seek",
"seekable",
"tell",
"truncate",
"writable",
"write",
"writelines",
)
@proxy_method_directly("detach", "fileno", "readable")
@proxy_property_directly("closed", "raw", "name", "mode")
class AsyncBufferedIOBase(AsyncBase):
"""The asyncio executor version of io.BufferedWriter."""
@delegate_to_executor("peek")
class AsyncBufferedReader(AsyncBufferedIOBase):
"""The asyncio executor version of io.BufferedReader and Random."""
@delegate_to_executor(
"close",
"flush",
"isatty",
"read",
"readall",
"readinto",
"readline",
"readlines",
"seek",
"seekable",
"tell",
"truncate",
"writable",
"write",
"writelines",
)
@proxy_method_directly("fileno", "readable")
@proxy_property_directly("closed", "name", "mode")
class AsyncFileIO(AsyncBase):
"""The asyncio executor version of io.FileIO."""

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from ..base import AsyncBase
from .utils import (
delegate_to_executor,
proxy_method_directly,
proxy_property_directly,
)
@delegate_to_executor(
"close",
"flush",
"isatty",
"read",
"readable",
"readline",
"readlines",
"seek",
"seekable",
"tell",
"truncate",
"write",
"writable",
"writelines",
)
@proxy_method_directly("detach", "fileno", "readable")
@proxy_property_directly(
"buffer",
"closed",
"encoding",
"errors",
"line_buffering",
"newlines",
"name",
"mode",
)
class AsyncTextIOWrapper(AsyncBase):
"""The asyncio executor version of io.TextIOWrapper."""

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import functools
from types import coroutine
def delegate_to_executor(*attrs):
def cls_builder(cls):
for attr_name in attrs:
setattr(cls, attr_name, _make_delegate_method(attr_name))
return cls
return cls_builder
def proxy_method_directly(*attrs):
def cls_builder(cls):
for attr_name in attrs:
setattr(cls, attr_name, _make_proxy_method(attr_name))
return cls
return cls_builder
def proxy_property_directly(*attrs):
def cls_builder(cls):
for attr_name in attrs:
setattr(cls, attr_name, _make_proxy_property(attr_name))
return cls
return cls_builder
def cond_delegate_to_executor(*attrs):
def cls_builder(cls):
for attr_name in attrs:
setattr(cls, attr_name, _make_cond_delegate_method(attr_name))
return cls
return cls_builder
def _make_delegate_method(attr_name):
@coroutine
def method(self, *args, **kwargs):
cb = functools.partial(getattr(self._file, attr_name), *args, **kwargs)
return (yield from self._loop.run_in_executor(self._executor, cb))
return method
def _make_proxy_method(attr_name):
def method(self, *args, **kwargs):
return getattr(self._file, attr_name)(*args, **kwargs)
return method
def _make_proxy_property(attr_name):
def proxy_property(self):
return getattr(self._file, attr_name)
return property(proxy_property)
def _make_cond_delegate_method(attr_name):
"""For spooled temp files, delegate only if rolled to file object"""
async def method(self, *args, **kwargs):
if self._file._rolled:
cb = functools.partial(getattr(self._file, attr_name), *args, **kwargs)
return await self._loop.run_in_executor(self._executor, cb)
else:
return getattr(self._file, attr_name)(*args, **kwargs)
return method

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pip

279
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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
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Metadata-Version: 2.1
Name: aiohappyeyeballs
Version: 2.4.3
Summary: Happy Eyeballs for asyncio
Home-page: https://github.com/aio-libs/aiohappyeyeballs
License: PSF-2.0
Author: J. Nick Koston
Author-email: nick@koston.org
Requires-Python: >=3.8
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: Python Software Foundation License
Classifier: License :: Other/Proprietary License
Classifier: Natural Language :: English
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.8
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: Topic :: Software Development :: Libraries
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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aiohappyeyeballs-2.4.3.dist-info/RECORD,,
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aiohappyeyeballs/__pycache__/__init__.cpython-310.pyc,,
aiohappyeyeballs/__pycache__/_staggered.cpython-310.pyc,,
aiohappyeyeballs/__pycache__/impl.cpython-310.pyc,,
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Wheel-Version: 1.0
Generator: poetry-core 1.9.0
Root-Is-Purelib: true
Tag: py3-none-any

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__version__ = "2.4.3"
from .impl import start_connection
from .types import AddrInfoType
from .utils import addr_to_addr_infos, pop_addr_infos_interleave, remove_addr_infos
__all__ = (
"start_connection",
"AddrInfoType",
"remove_addr_infos",
"pop_addr_infos_interleave",
"addr_to_addr_infos",
)

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import asyncio
import contextlib
from typing import (
TYPE_CHECKING,
Any,
Awaitable,
Callable,
Iterable,
List,
Optional,
Set,
Tuple,
TypeVar,
Union,
)
_T = TypeVar("_T")
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 (SystemExit, KeyboardInterrupt):
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:
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 functools
import itertools
import socket
import sys
from typing import List, Optional, Sequence, Union
from . import _staggered
from .types import AddrInfoType
if sys.version_info < (3, 8, 2): # noqa: UP036
# asyncio.staggered is broken in Python 3.8.0 and 3.8.1
# so it must be patched:
# https://github.com/aio-libs/aiohttp/issues/8556
# https://bugs.python.org/issue39129
# https://github.com/python/cpython/pull/17693
import asyncio.futures
asyncio.futures.TimeoutError = asyncio.TimeoutError # type: ignore[attr-defined]
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.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
)
break
except (RuntimeError, OSError):
continue
else: # using happy eyeballs
sock, _, _ = await _staggered.staggered_race(
(
functools.partial(
_connect_sock, current_loop, exceptions, addrinfo, local_addr_infos
)
for addrinfo in addr_infos
),
happy_eyeballs_delay,
)
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,
) -> socket.socket:
"""Create, bind and connect one socket."""
my_exceptions: List[Union[OSError, RuntimeError]] = []
exceptions.append(my_exceptions)
family, type_, proto, _, address = addr_info
sock = None
try:
sock = socket.socket(family=family, type=type_, proto=proto)
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.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:
sock.close()
raise
except:
if sock is not None:
sock.close()
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
from typing import Tuple, Union
AddrInfoType = Tuple[
Union[int, socket.AddressFamily],
Union[int, socket.SocketKind],
int,
str,
Tuple, # type: ignore[type-arg]
]

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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")

1
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pip

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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.

243
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Metadata-Version: 2.1
Name: aiohttp
Version: 3.9.0
Summary: Async http client/server framework (asyncio)
Home-page: https://github.com/aio-libs/aiohttp
Maintainer: aiohttp team <team@aiohttp.org>
Maintainer-email: team@aiohttp.org
License: Apache 2
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: License :: OSI Approved :: Apache Software License
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 :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Topic :: Internet :: WWW/HTTP
Requires-Python: >=3.8
Description-Content-Type: text/x-rst
License-File: LICENSE.txt
Requires-Dist: attrs >=17.3.0
Requires-Dist: multidict <7.0,>=4.5
Requires-Dist: yarl <2.0,>=1.0
Requires-Dist: frozenlist >=1.1.1
Requires-Dist: aiosignal >=1.1.2
Requires-Dist: async-timeout <5.0,>=4.0 ; python_version < "3.11"
Provides-Extra: speedups
Requires-Dist: brotlicffi ; (platform_python_implementation != "CPython") and extra == 'speedups'
Requires-Dist: Brotli ; (platform_python_implementation == "CPython") and extra == 'speedups'
Requires-Dist: aiodns ; (sys_platform == "linux" or sys_platform == "darwin") and extra == 'speedups'
==================================
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://readthedocs.org/projects/aiohttp/badge/?version=latest
:target: https://docs.aiohttp.org/
:alt: Latest Read The Docs
.. 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
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
*gitter chat* https://gitter.im/aio-libs/Lobby
We support `Stack Overflow
<https://stackoverflow.com/questions/tagged/aiohttp>`_.
Please add *aiohttp* tag to your question there.
Requirements
============
- async-timeout_
- 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

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aiohttp/client_exceptions.py,sha256=ZS-W_vhJr29PS1YXhV4AA6X34Vte6KlEs5-CifUVWSQ,9791
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aiohttp/client_reqrep.py,sha256=Pi9PWKGxX_3VNIZVvBz5RMz2Nf4uw6IgXRaPzcfYjJU,40849
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aiohttp/helpers.py,sha256=or4ZTfv64_hNgSygxXCWU5sbvsM1YvP6M4S4c-eCLeU,31254
aiohttp/http.py,sha256=DGKcwDbgIMpasv7s2jeKCRuixyj7W-RIrihRFjj0xcY,1914
aiohttp/http_exceptions.py,sha256=GJYn38j4sI4KdUh993VnZlbgVHOUNI_Z9-ASDTjl5aU,2822
aiohttp/http_parser.py,sha256=izUsiFn1xLsEW-xZnbvrb3dEu6aFt-XquJ53wTqhX3E,36057
aiohttp/http_websocket.py,sha256=eJb1OTXfYu-V2xg4tRC4t2o-P_7LqfRddr-m6T1DQtA,27089
aiohttp/http_writer.py,sha256=p8H39HhtilQEE90njvtJHc94Am95zjHNoS8T1JcNXJc,6131
aiohttp/locks.py,sha256=vp1Z4zx0SvooSffw88dkZ-7qpk2CqRf5vWh2dpKagTA,1177
aiohttp/log.py,sha256=zYUTvXsMQ9Sz1yNN8kXwd5Qxu49a1FzjZ_wQqriEc8M,333
aiohttp/multipart.py,sha256=wLIcJk6q6U7mCcia4hlqKHRbUMFaPzaiXkKAKWeXJvg,33461
aiohttp/payload.py,sha256=w2kRU8QVQegEoWkC-XFQRenlMUfj2twnlgCCYfhi8WM,14045
aiohttp/payload_streamer.py,sha256=rBb3jAFcwAK1QOgbhya2y4zGjhT11oQrepdcffA1_jM,2162
aiohttp/py.typed,sha256=3VVwXUAWVEVX7sDwyYDnW5ZdBC9_Z9AJAFfLCleUW0k,8
aiohttp/pytest_plugin.py,sha256=fJxoTu3NI1wDjFIV1FDmx0oGdRU7r6baovTwJneR6J4,11986
aiohttp/resolver.py,sha256=k5cVNWiiCHqKDGko7UZNu2y-j6SrU7vQBx-omwHPhso,5230
aiohttp/streams.py,sha256=Yy5Sj8ewDvbQTKe2BGnUGmCcj0bbl0EeKBT3uMK4K6M,21502
aiohttp/tcp_helpers.py,sha256=K-hhGh3jd6qCEnHJo8LvFyfJwBjh99UKI7A0aSRVhj4,998
aiohttp/test_utils.py,sha256=5lve_wZyTUljwNzdYx72UVr7o4n_rYry5Er2uGvJwPA,20880
aiohttp/tracing.py,sha256=6WifsvgLXEHksxaDnoP3EgWk5ttrTSyGsn4cq6FPO_M,15623
aiohttp/typedefs.py,sha256=WEEyATjc7mAxTnXeai8ihaAJeI_dASs_n0KSqwkGdGo,1545
aiohttp/web.py,sha256=8rghTkpERz14vRQA4oyXfGZLWMIBMrrHXxcvtZZ_fAU,19879
aiohttp/web_app.py,sha256=43RQib4RKrGyqjV04JmtbZZKo9sXME_0C3E70Y6yhOk,18947
aiohttp/web_exceptions.py,sha256=itNRhCMDJFhnMWftr5SyTsoqh-i0n9rzTj0sjcAEUjo,10812
aiohttp/web_fileresponse.py,sha256=PBtymygkisslfA_vZ8QxkR062trsUc_hGgOuV_L2ByQ,10990
aiohttp/web_log.py,sha256=w81HIudhfSxfodo2Fjkok7jWT56XXIrVMJN6ihYnLo0,8014
aiohttp/web_middlewares.py,sha256=PDLC_h2xS5oY_0O5Nlwa1q71RfhTYM_-i_PmBR4MCUg,4168
aiohttp/web_protocol.py,sha256=-1pSEgI7vsb-B9Go39XssTRcZvIKv2gBHYpH7HqHwcQ,23762
aiohttp/web_request.py,sha256=HM9YrGPx79LIw478yW77Sq_lcIwaA7CiSA7Bcc0TOlI,29674
aiohttp/web_response.py,sha256=e8qfIRCx69d41b18vvj9dh4ZfMzaR9dLAWtyl1HhLDg,28566
aiohttp/web_routedef.py,sha256=KrQtG7OzlE1ylPZf54yDJjBLl36nGvYl8Z9mA6SWayk,6368
aiohttp/web_runner.py,sha256=PUmmc3deHj1Iae2PYlPvSedD2dLTXgbumRjRl8QGLOc,12142
aiohttp/web_server.py,sha256=kOlImrScEbvkGHG7i-N-7eqf55f2zC_J2BZcJanGGmU,2664
aiohttp/web_urldispatcher.py,sha256=tFZ7O1wuMGw9-besWqDrPM42N4RYHptsaxjQMpbK-kQ,40779
aiohttp/web_ws.py,sha256=CWrWdRN5pH55en22Gt0HZ0CleO8PBfP8ucI5-dv9Oe4,18554
aiohttp/worker.py,sha256=vDMxlk-Mo3rzN4yubw2-c8T6yg7PRY8Mv0NLuRm8lWw,8212

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Generator: bdist_wheel (0.41.3)
Root-Is-Purelib: false
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__version__ = "3.9.0"
from typing import TYPE_CHECKING, Tuple
from . import hdrs as hdrs
from .client import (
BaseConnector as BaseConnector,
ClientConnectionError as ClientConnectionError,
ClientConnectorCertificateError as ClientConnectorCertificateError,
ClientConnectorError as ClientConnectorError,
ClientConnectorSSLError as ClientConnectorSSLError,
ClientError as ClientError,
ClientHttpProxyError as ClientHttpProxyError,
ClientOSError as ClientOSError,
ClientPayloadError as ClientPayloadError,
ClientProxyConnectionError as ClientProxyConnectionError,
ClientRequest as ClientRequest,
ClientResponse as ClientResponse,
ClientResponseError as ClientResponseError,
ClientSession as ClientSession,
ClientSSLError as ClientSSLError,
ClientTimeout as ClientTimeout,
ClientWebSocketResponse as ClientWebSocketResponse,
ContentTypeError as ContentTypeError,
Fingerprint as Fingerprint,
InvalidURL as InvalidURL,
NamedPipeConnector as NamedPipeConnector,
RequestInfo as RequestInfo,
ServerConnectionError as ServerConnectionError,
ServerDisconnectedError as ServerDisconnectedError,
ServerFingerprintMismatch as ServerFingerprintMismatch,
ServerTimeoutError as ServerTimeoutError,
TCPConnector as TCPConnector,
TooManyRedirects as TooManyRedirects,
UnixConnector as UnixConnector,
WSServerHandshakeError as WSServerHandshakeError,
request as request,
)
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,
TraceRequestRedirectParams as TraceRequestRedirectParams,
TraceRequestStartParams as TraceRequestStartParams,
TraceResponseChunkReceivedParams as TraceResponseChunkReceivedParams,
)
if TYPE_CHECKING: # pragma: no cover
# 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
"BaseConnector",
"ClientConnectionError",
"ClientConnectorCertificateError",
"ClientConnectorError",
"ClientConnectorSSLError",
"ClientError",
"ClientHttpProxyError",
"ClientOSError",
"ClientPayloadError",
"ClientProxyConnectionError",
"ClientResponse",
"ClientRequest",
"ClientResponseError",
"ClientSSLError",
"ClientSession",
"ClientTimeout",
"ClientWebSocketResponse",
"ContentTypeError",
"Fingerprint",
"InvalidURL",
"RequestInfo",
"ServerConnectionError",
"ServerDisconnectedError",
"ServerFingerprintMismatch",
"ServerTimeoutError",
"TCPConnector",
"TooManyRedirects",
"UnixConnector",
"NamedPipeConnector",
"WSServerHandshakeError",
"request",
# cookiejar
"CookieJar",
"DummyCookieJar",
# formdata
"FormData",
# helpers
"BasicAuth",
"ChainMapProxy",
"ETag",
# 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",
"FlowControlDataQueue",
"StreamReader",
# tracing
"TraceConfig",
"TraceConnectionCreateEndParams",
"TraceConnectionCreateStartParams",
"TraceConnectionQueuedEndParams",
"TraceConnectionQueuedStartParams",
"TraceConnectionReuseconnParams",
"TraceDnsCacheHitParams",
"TraceDnsCacheMissParams",
"TraceDnsResolveHostEndParams",
"TraceDnsResolveHostStartParams",
"TraceRequestChunkSentParams",
"TraceRequestEndParams",
"TraceRequestExceptionParams",
"TraceRequestRedirectParams",
"TraceRequestStartParams",
"TraceResponseChunkReceivedParams",
# workers (imported lazily with __getattr__)
"GunicornUVLoopWebWorker",
"GunicornWebWorker",
)
def __dir__() -> Tuple[str, ...]:
return __all__ + ("__author__", "__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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from libc.stdint cimport int32_t, uint8_t, uint16_t, uint64_t
cdef extern from "../vendor/llhttp/build/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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from typing import Any
class reify:
def __init__(self, wrapped: Any) -> None: ...
def __get__(self, inst: Any, owner: Any) -> Any: ...
def __set__(self, inst: Any, value: Any) -> None: ...

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cdef class reify:
"""Use as a class method decorator. It operates almost exactly like
the Python `@property` decorator, but it puts the result of the
method it decorates into the instance dict after the first call,
effectively replacing the function it decorates with an instance
variable. It is, in Python parlance, a data descriptor.
"""
cdef object wrapped
cdef object name
def __init__(self, wrapped):
self.wrapped = wrapped
self.name = wrapped.__name__
@property
def __doc__(self):
return self.wrapped.__doc__
def __get__(self, inst, owner):
try:
try:
return inst._cache[self.name]
except KeyError:
val = self.wrapped(inst)
inst._cache[self.name] = val
return val
except AttributeError:
if inst is None:
return self
raise
def __set__(self, inst, value):
raise AttributeError("reified property is read-only")

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#cython: language_level=3
#
# 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
from .http_exceptions import (
BadHttpMessage,
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
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 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
bytearray _raw_name
bytearray _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
object _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 = bytearray()
self._raw_value = bytearray()
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):
if self._raw_name:
raw_name = bytes(self._raw_name)
raw_value = bytes(self._raw_value)
name = find_header(raw_name)
value = raw_value.decode('utf-8', 'surrogateescape')
self._headers.add(name, value)
if name is CONTENT_ENCODING:
self._content_encoding = value
PyByteArray_Resize(self._raw_name, 0)
PyByteArray_Resize(self._raw_value, 0)
self._has_value = False
self._raw_headers.append((raw_name, raw_value))
cdef _on_header_field(self, char* at, size_t length):
cdef Py_ssize_t size
cdef char *buf
if self._has_value:
self._process_header()
size = PyByteArray_Size(self._raw_name)
PyByteArray_Resize(self._raw_name, size + length)
buf = PyByteArray_AsString(self._raw_name)
memcpy(buf + size, at, length)
cdef _on_header_value(self, char* at, size_t length):
cdef Py_ssize_t size
cdef char *buf
size = PyByteArray_Size(self._raw_value)
PyByteArray_Resize(self._raw_value, size + length)
buf = PyByteArray_AsString(self._raw_value)
memcpy(buf + size, at, length)
self._has_value = True
cdef _on_headers_complete(self):
self._process_header()
method = http_method_str(self._cparser.method)
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(self._headers)
if upgrade or self._cparser.method == cparser.HTTP_CONNECT:
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
enc = enc.lower()
if enc in ('gzip', 'deflate', 'br'):
encoding = enc
if self._cparser.type == cparser.HTTP_REQUEST:
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 for satisfy transfer length header.")
elif self._cparser.flags & cparser.F_CONTENT_LENGTH:
raise ContentLengthError(
"Not enough data for 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 = CIMultiDict()
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._cparser.upgrade 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 exc:
if pyparser._payload_exception is not None:
pyparser._payload.set_exception(pyparser._payload_exception(str(exc)))
else:
pyparser._payload.set_exception(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 in {cparser.HPE_INVALID_STATUS,
cparser.HPE_INVALID_METHOD,
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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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 char BUFFER[BUF_SIZE]
cdef object _istr = istr
# ----------------- writer ---------------------------
cdef struct Writer:
char *buf
Py_ssize_t size
Py_ssize_t pos
cdef inline void _init_writer(Writer* writer):
writer.buf = &BUFFER[0]
writer.size = BUF_SIZE
writer.pos = 0
cdef inline void _release_writer(Writer* writer):
if writer.buf != BUFFER:
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 writer.buf == BUFFER:
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.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
# --------------- _serialize_headers ----------------------
cdef str to_str(object s):
typ = type(s)
if typ is str:
return <str>s
elif typ is _istr:
return PyObject_Str(s)
elif not isinstance(s, str):
raise TypeError("Cannot serialize non-str key {!r}".format(s))
else:
return str(s)
cdef void _safe_header(str string) except *:
if "\r" in string or "\n" in string:
raise ValueError(
"Newline or carriage return character detected in HTTP status message or "
"header. This is a potential security issue."
)
def _serialize_headers(str status_line, headers):
cdef Writer writer
cdef object key
cdef object val
cdef bytes ret
_init_writer(&writer)
for key, val in headers.items():
_safe_header(to_str(key))
_safe_header(to_str(val))
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(&writer, to_str(key)) < 0:
raise
if _write_byte(&writer, b':') < 0:
raise
if _write_byte(&writer, b' ') < 0:
raise
if _write_str(&writer, to_str(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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from cpython cimport PyBytes_AsString
#from cpython cimport PyByteArray_AsString # cython still not exports that
cdef extern from "Python.h":
char* PyByteArray_AsString(bytearray ba) except NULL
from libc.stdint cimport uint32_t, uint64_t, uintmax_t
def _websocket_mask_cython(object mask, object data):
"""Note, this function mutates its `data` argument
"""
cdef:
Py_ssize_t data_len, i
# bit operations on signed integers are implementation-specific
unsigned char * in_buf
const unsigned char * mask_buf
uint32_t uint32_msk
uint64_t uint64_msk
assert len(mask) == 4
if not isinstance(mask, bytes):
mask = bytes(mask)
if isinstance(data, bytearray):
data = <bytearray>data
else:
data = bytearray(data)
data_len = len(data)
in_buf = <unsigned char*>PyByteArray_AsString(data)
mask_buf = <const unsigned char*>PyBytes_AsString(mask)
uint32_msk = (<uint32_t*>mask_buf)[0]
# TODO: align in_data ptr to achieve even faster speeds
# does it need in python ?! malloc() always aligns to sizeof(long) bytes
if sizeof(size_t) >= 8:
uint64_msk = uint32_msk
uint64_msk = (uint64_msk << 32) | uint32_msk
while data_len >= 8:
(<uint64_t*>in_buf)[0] ^= uint64_msk
in_buf += 8
data_len -= 8
while data_len >= 4:
(<uint32_t*>in_buf)[0] ^= uint32_msk
in_buf += 4
data_len -= 4
for i in range(0, data_len):
in_buf[i] ^= mask_buf[i]

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import asyncio
import logging
from abc import ABC, abstractmethod
from collections.abc import Sized
from http.cookies import BaseCookie, Morsel
from typing import (
TYPE_CHECKING,
Any,
Awaitable,
Callable,
Dict,
Generator,
Iterable,
List,
Optional,
Tuple,
)
from multidict import CIMultiDict
from yarl import URL
from .helpers import get_running_loop
from .typedefs import LooseCookies
if TYPE_CHECKING: # pragma: no cover
from .web_app import Application
from .web_exceptions import HTTPException
from .web_request import BaseRequest, Request
from .web_response import StreamResponse
else:
BaseRequest = Request = Application = StreamResponse = None
HTTPException = None
class AbstractRouter(ABC):
def __init__(self) -> None:
self._frozen = False
def post_init(self, app: Application) -> None:
"""Post init stage.
Not an abstract method for sake of backward compatibility,
but if the router wants to be aware of the application
it can override this.
"""
@property
def frozen(self) -> bool:
return self._frozen
def freeze(self) -> None:
"""Freeze router."""
self._frozen = True
@abstractmethod
async def resolve(self, request: Request) -> "AbstractMatchInfo":
"""Return MATCH_INFO for given request"""
class AbstractMatchInfo(ABC):
@property # pragma: no branch
@abstractmethod
def handler(self) -> Callable[[Request], Awaitable[StreamResponse]]:
"""Execute matched request handler"""
@property
@abstractmethod
def expect_handler(
self,
) -> Callable[[Request], Awaitable[Optional[StreamResponse]]]:
"""Expect handler for 100-continue processing"""
@property # pragma: no branch
@abstractmethod
def http_exception(self) -> Optional[HTTPException]:
"""HTTPException instance raised on router's resolving, or None"""
@abstractmethod # pragma: no branch
def get_info(self) -> Dict[str, Any]:
"""Return a dict with additional info useful for introspection"""
@property # pragma: no branch
@abstractmethod
def apps(self) -> Tuple[Application, ...]:
"""Stack of nested applications.
Top level application is left-most element.
"""
@abstractmethod
def add_app(self, app: Application) -> None:
"""Add application to the nested apps stack."""
@abstractmethod
def freeze(self) -> None:
"""Freeze the match info.
The method is called after route resolution.
After the call .add_app() is forbidden.
"""
class AbstractView(ABC):
"""Abstract class based view."""
def __init__(self, request: Request) -> None:
self._request = request
@property
def request(self) -> Request:
"""Request instance."""
return self._request
@abstractmethod
def __await__(self) -> Generator[Any, None, StreamResponse]:
"""Execute the view handler."""
class AbstractResolver(ABC):
"""Abstract DNS resolver."""
@abstractmethod
async def resolve(self, host: str, port: int, family: int) -> List[Dict[str, Any]]:
"""Return IP address for given hostname"""
@abstractmethod
async def close(self) -> None:
"""Release resolver"""
if TYPE_CHECKING: # pragma: no cover
IterableBase = Iterable[Morsel[str]]
else:
IterableBase = Iterable
ClearCookiePredicate = Callable[["Morsel[str]"], bool]
class AbstractCookieJar(Sized, IterableBase):
"""Abstract Cookie Jar."""
def __init__(self, *, loop: Optional[asyncio.AbstractEventLoop] = None) -> None:
self._loop = get_running_loop(loop)
@abstractmethod
def clear(self, predicate: Optional[ClearCookiePredicate] = None) -> None:
"""Clear all cookies if no predicate is passed."""
@abstractmethod
def clear_domain(self, domain: str) -> None:
"""Clear all cookies for domain and all subdomains."""
@abstractmethod
def update_cookies(self, cookies: LooseCookies, response_url: URL = URL()) -> None:
"""Update cookies."""
@abstractmethod
def filter_cookies(self, request_url: URL) -> "BaseCookie[str]":
"""Return the jar's cookies filtered by their attributes."""
class AbstractStreamWriter(ABC):
"""Abstract stream writer."""
buffer_size = 0
output_size = 0
length: Optional[int] = 0
@abstractmethod
async def write(self, chunk: bytes) -> None:
"""Write chunk into stream."""
@abstractmethod
async def write_eof(self, chunk: bytes = b"") -> None:
"""Write last chunk."""
@abstractmethod
async def drain(self) -> None:
"""Flush the write buffer."""
@abstractmethod
def enable_compression(self, encoding: str = "deflate") -> None:
"""Enable HTTP body compression"""
@abstractmethod
def enable_chunking(self) -> None:
"""Enable HTTP chunked mode"""
@abstractmethod
async def write_headers(
self, status_line: str, headers: "CIMultiDict[str]"
) -> None:
"""Write HTTP headers"""
class AbstractAccessLogger(ABC):
"""Abstract writer to access log."""
def __init__(self, logger: logging.Logger, log_format: str) -> None:
self.logger = logger
self.log_format = log_format
@abstractmethod
def log(self, request: BaseRequest, response: StreamResponse, time: float) -> None:
"""Emit log to logger."""

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import asyncio
from typing import Optional, cast
from .tcp_helpers import tcp_nodelay
class BaseProtocol(asyncio.Protocol):
__slots__ = (
"_loop",
"_paused",
"_drain_waiter",
"_connection_lost",
"_reading_paused",
"transport",
)
def __init__(self, loop: asyncio.AbstractEventLoop) -> None:
self._loop: asyncio.AbstractEventLoop = loop
self._paused = False
self._drain_waiter: Optional[asyncio.Future[None]] = None
self._reading_paused = False
self.transport: Optional[asyncio.Transport] = None
@property
def connected(self) -> bool:
"""Return True if the connection is open."""
return self.transport is not None
def pause_writing(self) -> None:
assert not self._paused
self._paused = True
def resume_writing(self) -> None:
assert self._paused
self._paused = False
waiter = self._drain_waiter
if waiter is not None:
self._drain_waiter = None
if not waiter.done():
waiter.set_result(None)
def pause_reading(self) -> None:
if not self._reading_paused and self.transport is not None:
try:
self.transport.pause_reading()
except (AttributeError, NotImplementedError, RuntimeError):
pass
self._reading_paused = True
def resume_reading(self) -> None:
if self._reading_paused and self.transport is not None:
try:
self.transport.resume_reading()
except (AttributeError, NotImplementedError, RuntimeError):
pass
self._reading_paused = False
def connection_made(self, transport: asyncio.BaseTransport) -> None:
tr = cast(asyncio.Transport, transport)
tcp_nodelay(tr, True)
self.transport = tr
def connection_lost(self, exc: Optional[BaseException]) -> None:
# Wake up the writer if currently paused.
self.transport = None
if not self._paused:
return
waiter = self._drain_waiter
if waiter is None:
return
self._drain_waiter = None
if waiter.done():
return
if exc is None:
waiter.set_result(None)
else:
waiter.set_exception(exc)
async def _drain_helper(self) -> None:
if not self.connected:
raise ConnectionResetError("Connection lost")
if not self._paused:
return
waiter = self._drain_waiter
if waiter is None:
waiter = self._loop.create_future()
self._drain_waiter = waiter
await asyncio.shield(waiter)

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"""HTTP related errors."""
import asyncio
import warnings
from typing import TYPE_CHECKING, Any, Optional, Tuple, Union
from .http_parser import RawResponseMessage
from .typedefs import LooseHeaders
try:
import ssl
SSLContext = ssl.SSLContext
except ImportError: # pragma: no cover
ssl = SSLContext = None # type: ignore[assignment]
if TYPE_CHECKING: # pragma: no cover
from .client_reqrep import ClientResponse, ConnectionKey, Fingerprint, RequestInfo
else:
RequestInfo = ClientResponse = ConnectionKey = None
__all__ = (
"ClientError",
"ClientConnectionError",
"ClientOSError",
"ClientConnectorError",
"ClientProxyConnectionError",
"ClientSSLError",
"ClientConnectorSSLError",
"ClientConnectorCertificateError",
"ServerConnectionError",
"ServerTimeoutError",
"ServerDisconnectedError",
"ServerFingerprintMismatch",
"ClientResponseError",
"ClientHttpProxyError",
"WSServerHandshakeError",
"ContentTypeError",
"ClientPayloadError",
"InvalidURL",
)
class ClientError(Exception):
"""Base class for client connection errors."""
class ClientResponseError(ClientError):
"""Base class for exceptions that occur after getting a response.
request_info: An instance of RequestInfo.
history: A sequence of responses, if redirects occurred.
status: HTTP status code.
message: Error message.
headers: Response headers.
"""
def __init__(
self,
request_info: RequestInfo,
history: Tuple[ClientResponse, ...],
*,
code: Optional[int] = None,
status: Optional[int] = None,
message: str = "",
headers: Optional[LooseHeaders] = None,
) -> None:
self.request_info = request_info
if code is not None:
if status is not None:
raise ValueError(
"Both code and status arguments are provided; "
"code is deprecated, use status instead"
)
warnings.warn(
"code argument is deprecated, use status instead",
DeprecationWarning,
stacklevel=2,
)
if status is not None:
self.status = status
elif code is not None:
self.status = code
else:
self.status = 0
self.message = message
self.headers = headers
self.history = history
self.args = (request_info, history)
def __str__(self) -> str:
return "{}, message={!r}, url={!r}".format(
self.status,
self.message,
self.request_info.real_url,
)
def __repr__(self) -> str:
args = f"{self.request_info!r}, {self.history!r}"
if self.status != 0:
args += f", status={self.status!r}"
if self.message != "":
args += f", message={self.message!r}"
if self.headers is not None:
args += f", headers={self.headers!r}"
return f"{type(self).__name__}({args})"
@property
def code(self) -> int:
warnings.warn(
"code property is deprecated, use status instead",
DeprecationWarning,
stacklevel=2,
)
return self.status
@code.setter
def code(self, value: int) -> None:
warnings.warn(
"code property is deprecated, use status instead",
DeprecationWarning,
stacklevel=2,
)
self.status = value
class ContentTypeError(ClientResponseError):
"""ContentType found is not valid."""
class WSServerHandshakeError(ClientResponseError):
"""websocket server handshake error."""
class ClientHttpProxyError(ClientResponseError):
"""HTTP proxy error.
Raised in :class:`aiohttp.connector.TCPConnector` if
proxy responds with status other than ``200 OK``
on ``CONNECT`` request.
"""
class TooManyRedirects(ClientResponseError):
"""Client was redirected too many times."""
class ClientConnectionError(ClientError):
"""Base class for client socket errors."""
class ClientOSError(ClientConnectionError, OSError):
"""OSError error."""
class ClientConnectorError(ClientOSError):
"""Client connector error.
Raised in :class:`aiohttp.connector.TCPConnector` if
a connection can not be established.
"""
def __init__(self, connection_key: ConnectionKey, os_error: OSError) -> None:
self._conn_key = connection_key
self._os_error = os_error
super().__init__(os_error.errno, os_error.strerror)
self.args = (connection_key, os_error)
@property
def os_error(self) -> OSError:
return self._os_error
@property
def host(self) -> str:
return self._conn_key.host
@property
def port(self) -> Optional[int]:
return self._conn_key.port
@property
def ssl(self) -> Union[SSLContext, None, bool, "Fingerprint"]:
return self._conn_key.ssl
def __str__(self) -> str:
return "Cannot connect to host {0.host}:{0.port} ssl:{1} [{2}]".format(
self, self.ssl if self.ssl is not None else "default", self.strerror
)
# OSError.__reduce__ does too much black magick
__reduce__ = BaseException.__reduce__
class ClientProxyConnectionError(ClientConnectorError):
"""Proxy connection error.
Raised in :class:`aiohttp.connector.TCPConnector` if
connection to proxy can not be established.
"""
class UnixClientConnectorError(ClientConnectorError):
"""Unix connector error.
Raised in :py:class:`aiohttp.connector.UnixConnector`
if connection to unix socket can not be established.
"""
def __init__(
self, path: str, connection_key: ConnectionKey, os_error: OSError
) -> None:
self._path = path
super().__init__(connection_key, os_error)
@property
def path(self) -> str:
return self._path
def __str__(self) -> str:
return "Cannot connect to unix socket {0.path} ssl:{1} [{2}]".format(
self, self.ssl if self.ssl is not None else "default", self.strerror
)
class ServerConnectionError(ClientConnectionError):
"""Server connection errors."""
class ServerDisconnectedError(ServerConnectionError):
"""Server disconnected."""
def __init__(self, message: Union[RawResponseMessage, str, None] = None) -> None:
if message is None:
message = "Server disconnected"
self.args = (message,)
self.message = message
class ServerTimeoutError(ServerConnectionError, asyncio.TimeoutError):
"""Server timeout error."""
class ServerFingerprintMismatch(ServerConnectionError):
"""SSL certificate does not match expected fingerprint."""
def __init__(self, expected: bytes, got: bytes, host: str, port: int) -> None:
self.expected = expected
self.got = got
self.host = host
self.port = port
self.args = (expected, got, host, port)
def __repr__(self) -> str:
return "<{} expected={!r} got={!r} host={!r} port={!r}>".format(
self.__class__.__name__, self.expected, self.got, self.host, self.port
)
class ClientPayloadError(ClientError):
"""Response payload error."""
class InvalidURL(ClientError, ValueError):
"""Invalid URL.
URL used for fetching is malformed, e.g. it doesn't contains host
part.
"""
# Derive from ValueError for backward compatibility
def __init__(self, url: Any) -> None:
# The type of url is not yarl.URL because the exception can be raised
# on URL(url) call
super().__init__(url)
@property
def url(self) -> Any:
return self.args[0]
def __repr__(self) -> str:
return f"<{self.__class__.__name__} {self.url}>"
class ClientSSLError(ClientConnectorError):
"""Base error for ssl.*Errors."""
if ssl is not None:
cert_errors = (ssl.CertificateError,)
cert_errors_bases = (
ClientSSLError,
ssl.CertificateError,
)
ssl_errors = (ssl.SSLError,)
ssl_error_bases = (ClientSSLError, ssl.SSLError)
else: # pragma: no cover
cert_errors = tuple()
cert_errors_bases = (
ClientSSLError,
ValueError,
)
ssl_errors = tuple()
ssl_error_bases = (ClientSSLError,)
class ClientConnectorSSLError(*ssl_error_bases): # type: ignore[misc]
"""Response ssl error."""
class ClientConnectorCertificateError(*cert_errors_bases): # type: ignore[misc]
"""Response certificate error."""
def __init__(
self, connection_key: ConnectionKey, certificate_error: Exception
) -> None:
self._conn_key = connection_key
self._certificate_error = certificate_error
self.args = (connection_key, certificate_error)
@property
def certificate_error(self) -> Exception:
return self._certificate_error
@property
def host(self) -> str:
return self._conn_key.host
@property
def port(self) -> Optional[int]:
return self._conn_key.port
@property
def ssl(self) -> bool:
return self._conn_key.is_ssl
def __str__(self) -> str:
return (
"Cannot connect to host {0.host}:{0.port} ssl:{0.ssl} "
"[{0.certificate_error.__class__.__name__}: "
"{0.certificate_error.args}]".format(self)
)

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import asyncio
from contextlib import suppress
from typing import Any, Optional, Tuple
from .base_protocol import BaseProtocol
from .client_exceptions import (
ClientOSError,
ClientPayloadError,
ServerDisconnectedError,
ServerTimeoutError,
)
from .helpers import BaseTimerContext, status_code_must_be_empty_body
from .http import HttpResponseParser, RawResponseMessage
from .streams import EMPTY_PAYLOAD, DataQueue, StreamReader
class ResponseHandler(BaseProtocol, DataQueue[Tuple[RawResponseMessage, StreamReader]]):
"""Helper class to adapt between Protocol and StreamReader."""
def __init__(self, loop: asyncio.AbstractEventLoop) -> None:
BaseProtocol.__init__(self, loop=loop)
DataQueue.__init__(self, loop)
self._should_close = False
self._payload: Optional[StreamReader] = None
self._skip_payload = False
self._payload_parser = None
self._timer = None
self._tail = b""
self._upgraded = False
self._parser: Optional[HttpResponseParser] = None
self._read_timeout: Optional[float] = None
self._read_timeout_handle: Optional[asyncio.TimerHandle] = None
self._timeout_ceil_threshold: Optional[float] = 5
@property
def upgraded(self) -> bool:
return self._upgraded
@property
def should_close(self) -> bool:
if self._payload is not None and not self._payload.is_eof() or self._upgraded:
return True
return (
self._should_close
or self._upgraded
or self.exception() is not None
or self._payload_parser is not None
or len(self) > 0
or bool(self._tail)
)
def force_close(self) -> None:
self._should_close = True
def close(self) -> None:
transport = self.transport
if transport is not None:
transport.close()
self.transport = None
self._payload = None
self._drop_timeout()
def is_connected(self) -> bool:
return self.transport is not None and not self.transport.is_closing()
def connection_lost(self, exc: Optional[BaseException]) -> None:
self._drop_timeout()
if self._payload_parser is not None:
with suppress(Exception):
self._payload_parser.feed_eof()
uncompleted = None
if self._parser is not None:
try:
uncompleted = self._parser.feed_eof()
except Exception:
if self._payload is not None:
self._payload.set_exception(
ClientPayloadError("Response payload is not completed")
)
if not self.is_eof():
if isinstance(exc, OSError):
exc = ClientOSError(*exc.args)
if exc is None:
exc = ServerDisconnectedError(uncompleted)
# assigns self._should_close to True as side effect,
# we do it anyway below
self.set_exception(exc)
self._should_close = True
self._parser = None
self._payload = None
self._payload_parser = None
self._reading_paused = False
super().connection_lost(exc)
def eof_received(self) -> None:
# should call parser.feed_eof() most likely
self._drop_timeout()
def pause_reading(self) -> None:
super().pause_reading()
self._drop_timeout()
def resume_reading(self) -> None:
super().resume_reading()
self._reschedule_timeout()
def set_exception(self, exc: BaseException) -> None:
self._should_close = True
self._drop_timeout()
super().set_exception(exc)
def set_parser(self, parser: Any, payload: Any) -> None:
# TODO: actual types are:
# parser: WebSocketReader
# payload: FlowControlDataQueue
# but they are not generi enough
# Need an ABC for both types
self._payload = payload
self._payload_parser = parser
self._drop_timeout()
if self._tail:
data, self._tail = self._tail, b""
self.data_received(data)
def set_response_params(
self,
*,
timer: Optional[BaseTimerContext] = None,
skip_payload: bool = False,
read_until_eof: bool = False,
auto_decompress: bool = True,
read_timeout: Optional[float] = None,
read_bufsize: int = 2**16,
timeout_ceil_threshold: float = 5,
max_line_size: int = 8190,
max_field_size: int = 8190,
) -> None:
self._skip_payload = skip_payload
self._read_timeout = read_timeout
self._timeout_ceil_threshold = timeout_ceil_threshold
self._parser = HttpResponseParser(
self,
self._loop,
read_bufsize,
timer=timer,
payload_exception=ClientPayloadError,
response_with_body=not skip_payload,
read_until_eof=read_until_eof,
auto_decompress=auto_decompress,
max_line_size=max_line_size,
max_field_size=max_field_size,
)
if self._tail:
data, self._tail = self._tail, b""
self.data_received(data)
def _drop_timeout(self) -> None:
if self._read_timeout_handle is not None:
self._read_timeout_handle.cancel()
self._read_timeout_handle = None
def _reschedule_timeout(self) -> None:
timeout = self._read_timeout
if self._read_timeout_handle is not None:
self._read_timeout_handle.cancel()
if timeout:
self._read_timeout_handle = self._loop.call_later(
timeout, self._on_read_timeout
)
else:
self._read_timeout_handle = None
def start_timeout(self) -> None:
self._reschedule_timeout()
def _on_read_timeout(self) -> None:
exc = ServerTimeoutError("Timeout on reading data from socket")
self.set_exception(exc)
if self._payload is not None:
self._payload.set_exception(exc)
def data_received(self, data: bytes) -> None:
self._reschedule_timeout()
if not data:
return
# custom payload parser
if self._payload_parser is not None:
eof, tail = self._payload_parser.feed_data(data)
if eof:
self._payload = None
self._payload_parser = None
if tail:
self.data_received(tail)
return
else:
if self._upgraded or self._parser is None:
# i.e. websocket connection, websocket parser is not set yet
self._tail += data
else:
# parse http messages
try:
messages, upgraded, tail = self._parser.feed_data(data)
except BaseException as exc:
if self.transport is not None:
# connection.release() could be called BEFORE
# data_received(), the transport is already
# closed in this case
self.transport.close()
# should_close is True after the call
self.set_exception(exc)
return
self._upgraded = upgraded
payload: Optional[StreamReader] = None
for message, payload in messages:
if message.should_close:
self._should_close = True
self._payload = payload
if self._skip_payload or status_code_must_be_empty_body(
message.code
):
self.feed_data((message, EMPTY_PAYLOAD), 0)
else:
self.feed_data((message, payload), 0)
if payload is not None:
# new message(s) was processed
# register timeout handler unsubscribing
# either on end-of-stream or immediately for
# EMPTY_PAYLOAD
if payload is not EMPTY_PAYLOAD:
payload.on_eof(self._drop_timeout)
else:
self._drop_timeout()
if tail:
if upgraded:
self.data_received(tail)
else:
self._tail = tail

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"""WebSocket client for asyncio."""
import asyncio
import sys
from typing import Any, Optional, cast
from .client_exceptions import ClientError
from .client_reqrep import ClientResponse
from .helpers import call_later, set_result
from .http import (
WS_CLOSED_MESSAGE,
WS_CLOSING_MESSAGE,
WebSocketError,
WSCloseCode,
WSMessage,
WSMsgType,
)
from .http_websocket import WebSocketWriter # WSMessage
from .streams import EofStream, FlowControlDataQueue
from .typedefs import (
DEFAULT_JSON_DECODER,
DEFAULT_JSON_ENCODER,
JSONDecoder,
JSONEncoder,
)
if sys.version_info >= (3, 11):
import asyncio as async_timeout
else:
import async_timeout
class ClientWebSocketResponse:
def __init__(
self,
reader: "FlowControlDataQueue[WSMessage]",
writer: WebSocketWriter,
protocol: Optional[str],
response: ClientResponse,
timeout: float,
autoclose: bool,
autoping: bool,
loop: asyncio.AbstractEventLoop,
*,
receive_timeout: Optional[float] = None,
heartbeat: Optional[float] = None,
compress: int = 0,
client_notakeover: bool = False,
) -> None:
self._response = response
self._conn = response.connection
self._writer = writer
self._reader = reader
self._protocol = protocol
self._closed = False
self._closing = False
self._close_code: Optional[int] = None
self._timeout = timeout
self._receive_timeout = receive_timeout
self._autoclose = autoclose
self._autoping = autoping
self._heartbeat = heartbeat
self._heartbeat_cb: Optional[asyncio.TimerHandle] = None
if heartbeat is not None:
self._pong_heartbeat = heartbeat / 2.0
self._pong_response_cb: Optional[asyncio.TimerHandle] = None
self._loop = loop
self._waiting: Optional[asyncio.Future[bool]] = None
self._exception: Optional[BaseException] = None
self._compress = compress
self._client_notakeover = client_notakeover
self._reset_heartbeat()
def _cancel_heartbeat(self) -> None:
if self._pong_response_cb is not None:
self._pong_response_cb.cancel()
self._pong_response_cb = None
if self._heartbeat_cb is not None:
self._heartbeat_cb.cancel()
self._heartbeat_cb = None
def _reset_heartbeat(self) -> None:
self._cancel_heartbeat()
if self._heartbeat is not None:
self._heartbeat_cb = call_later(
self._send_heartbeat,
self._heartbeat,
self._loop,
timeout_ceil_threshold=self._conn._connector._timeout_ceil_threshold
if self._conn is not None
else 5,
)
def _send_heartbeat(self) -> None:
if self._heartbeat is not None and not self._closed:
# fire-and-forget a task is not perfect but maybe ok for
# sending ping. Otherwise we need a long-living heartbeat
# task in the class.
self._loop.create_task(self._writer.ping())
if self._pong_response_cb is not None:
self._pong_response_cb.cancel()
self._pong_response_cb = call_later(
self._pong_not_received,
self._pong_heartbeat,
self._loop,
timeout_ceil_threshold=self._conn._connector._timeout_ceil_threshold
if self._conn is not None
else 5,
)
def _pong_not_received(self) -> None:
if not self._closed:
self._closed = True
self._close_code = WSCloseCode.ABNORMAL_CLOSURE
self._exception = asyncio.TimeoutError()
self._response.close()
@property
def closed(self) -> bool:
return self._closed
@property
def close_code(self) -> Optional[int]:
return self._close_code
@property
def protocol(self) -> Optional[str]:
return self._protocol
@property
def compress(self) -> int:
return self._compress
@property
def client_notakeover(self) -> bool:
return self._client_notakeover
def get_extra_info(self, name: str, default: Any = None) -> Any:
"""extra info from connection transport"""
conn = self._response.connection
if conn is None:
return default
transport = conn.transport
if transport is None:
return default
return transport.get_extra_info(name, default)
def exception(self) -> Optional[BaseException]:
return self._exception
async def ping(self, message: bytes = b"") -> None:
await self._writer.ping(message)
async def pong(self, message: bytes = b"") -> None:
await self._writer.pong(message)
async def send_str(self, data: str, compress: Optional[int] = None) -> None:
if not isinstance(data, str):
raise TypeError("data argument must be str (%r)" % type(data))
await self._writer.send(data, binary=False, compress=compress)
async def send_bytes(self, data: bytes, compress: Optional[int] = None) -> None:
if not isinstance(data, (bytes, bytearray, memoryview)):
raise TypeError("data argument must be byte-ish (%r)" % type(data))
await self._writer.send(data, binary=True, compress=compress)
async def send_json(
self,
data: Any,
compress: Optional[int] = None,
*,
dumps: JSONEncoder = DEFAULT_JSON_ENCODER,
) -> None:
await self.send_str(dumps(data), compress=compress)
async def close(self, *, code: int = WSCloseCode.OK, message: bytes = b"") -> bool:
# we need to break `receive()` cycle first,
# `close()` may be called from different task
if self._waiting is not None and not self._closing:
self._closing = True
self._reader.feed_data(WS_CLOSING_MESSAGE, 0)
await self._waiting
if not self._closed:
self._cancel_heartbeat()
self._closed = True
try:
await self._writer.close(code, message)
except asyncio.CancelledError:
self._close_code = WSCloseCode.ABNORMAL_CLOSURE
self._response.close()
raise
except Exception as exc:
self._close_code = WSCloseCode.ABNORMAL_CLOSURE
self._exception = exc
self._response.close()
return True
if self._close_code:
self._response.close()
return True
while True:
try:
async with async_timeout.timeout(self._timeout):
msg = await self._reader.read()
except asyncio.CancelledError:
self._close_code = WSCloseCode.ABNORMAL_CLOSURE
self._response.close()
raise
except Exception as exc:
self._close_code = WSCloseCode.ABNORMAL_CLOSURE
self._exception = exc
self._response.close()
return True
if msg.type == WSMsgType.CLOSE:
self._close_code = msg.data
self._response.close()
return True
else:
return False
async def receive(self, timeout: Optional[float] = None) -> WSMessage:
while True:
if self._waiting is not None:
raise RuntimeError("Concurrent call to receive() is not allowed")
if self._closed:
return WS_CLOSED_MESSAGE
elif self._closing:
await self.close()
return WS_CLOSED_MESSAGE
try:
self._waiting = self._loop.create_future()
try:
async with async_timeout.timeout(timeout or self._receive_timeout):
msg = await self._reader.read()
self._reset_heartbeat()
finally:
waiter = self._waiting
self._waiting = None
set_result(waiter, True)
except (asyncio.CancelledError, asyncio.TimeoutError):
self._close_code = WSCloseCode.ABNORMAL_CLOSURE
raise
except EofStream:
self._close_code = WSCloseCode.OK
await self.close()
return WSMessage(WSMsgType.CLOSED, None, None)
except ClientError:
self._closed = True
self._close_code = WSCloseCode.ABNORMAL_CLOSURE
return WS_CLOSED_MESSAGE
except WebSocketError as exc:
self._close_code = exc.code
await self.close(code=exc.code)
return WSMessage(WSMsgType.ERROR, exc, None)
except Exception as exc:
self._exception = exc
self._closing = True
self._close_code = WSCloseCode.ABNORMAL_CLOSURE
await self.close()
return WSMessage(WSMsgType.ERROR, exc, None)
if msg.type == WSMsgType.CLOSE:
self._closing = True
self._close_code = msg.data
if not self._closed and self._autoclose:
await self.close()
elif msg.type == WSMsgType.CLOSING:
self._closing = True
elif msg.type == WSMsgType.PING and self._autoping:
await self.pong(msg.data)
continue
elif msg.type == WSMsgType.PONG and self._autoping:
continue
return msg
async def receive_str(self, *, timeout: Optional[float] = None) -> str:
msg = await self.receive(timeout)
if msg.type != WSMsgType.TEXT:
raise TypeError(f"Received message {msg.type}:{msg.data!r} is not str")
return cast(str, msg.data)
async def receive_bytes(self, *, timeout: Optional[float] = None) -> bytes:
msg = await self.receive(timeout)
if msg.type != WSMsgType.BINARY:
raise TypeError(f"Received message {msg.type}:{msg.data!r} is not bytes")
return cast(bytes, msg.data)
async def receive_json(
self,
*,
loads: JSONDecoder = DEFAULT_JSON_DECODER,
timeout: Optional[float] = None,
) -> Any:
data = await self.receive_str(timeout=timeout)
return loads(data)
def __aiter__(self) -> "ClientWebSocketResponse":
return self
async def __anext__(self) -> WSMessage:
msg = await self.receive()
if msg.type in (WSMsgType.CLOSE, WSMsgType.CLOSING, WSMsgType.CLOSED):
raise StopAsyncIteration
return msg

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import asyncio
import zlib
from concurrent.futures import Executor
from typing import Optional, cast
try:
try:
import brotlicffi as brotli
except ImportError:
import brotli
HAS_BROTLI = True
except ImportError: # pragma: no cover
HAS_BROTLI = False
MAX_SYNC_CHUNK_SIZE = 1024
def encoding_to_mode(
encoding: Optional[str] = None,
suppress_deflate_header: bool = False,
) -> int:
if encoding == "gzip":
return 16 + zlib.MAX_WBITS
return -zlib.MAX_WBITS if suppress_deflate_header else zlib.MAX_WBITS
class ZlibBaseHandler:
def __init__(
self,
mode: int,
executor: Optional[Executor] = None,
max_sync_chunk_size: Optional[int] = MAX_SYNC_CHUNK_SIZE,
):
self._mode = mode
self._executor = executor
self._max_sync_chunk_size = max_sync_chunk_size
class ZLibCompressor(ZlibBaseHandler):
def __init__(
self,
encoding: Optional[str] = None,
suppress_deflate_header: bool = False,
level: Optional[int] = None,
wbits: Optional[int] = None,
strategy: int = zlib.Z_DEFAULT_STRATEGY,
executor: Optional[Executor] = None,
max_sync_chunk_size: Optional[int] = MAX_SYNC_CHUNK_SIZE,
):
super().__init__(
mode=encoding_to_mode(encoding, suppress_deflate_header)
if wbits is None
else wbits,
executor=executor,
max_sync_chunk_size=max_sync_chunk_size,
)
if level is None:
self._compressor = zlib.compressobj(wbits=self._mode, strategy=strategy)
else:
self._compressor = zlib.compressobj(
wbits=self._mode, strategy=strategy, level=level
)
def compress_sync(self, data: bytes) -> bytes:
return self._compressor.compress(data)
async def compress(self, data: bytes) -> bytes:
if (
self._max_sync_chunk_size is not None
and len(data) > self._max_sync_chunk_size
):
return await asyncio.get_event_loop().run_in_executor(
self._executor, self.compress_sync, data
)
return self.compress_sync(data)
def flush(self, mode: int = zlib.Z_FINISH) -> bytes:
return self._compressor.flush(mode)
class ZLibDecompressor(ZlibBaseHandler):
def __init__(
self,
encoding: Optional[str] = None,
suppress_deflate_header: bool = False,
executor: Optional[Executor] = None,
max_sync_chunk_size: Optional[int] = MAX_SYNC_CHUNK_SIZE,
):
super().__init__(
mode=encoding_to_mode(encoding, suppress_deflate_header),
executor=executor,
max_sync_chunk_size=max_sync_chunk_size,
)
self._decompressor = zlib.decompressobj(wbits=self._mode)
def decompress_sync(self, data: bytes, max_length: int = 0) -> bytes:
return self._decompressor.decompress(data, max_length)
async def decompress(self, data: bytes, max_length: int = 0) -> bytes:
if (
self._max_sync_chunk_size is not None
and len(data) > self._max_sync_chunk_size
):
return await asyncio.get_event_loop().run_in_executor(
self._executor, self.decompress_sync, data, max_length
)
return self.decompress_sync(data, max_length)
def flush(self, length: int = 0) -> bytes:
return (
self._decompressor.flush(length)
if length > 0
else self._decompressor.flush()
)
@property
def eof(self) -> bool:
return self._decompressor.eof
@property
def unconsumed_tail(self) -> bytes:
return self._decompressor.unconsumed_tail
@property
def unused_data(self) -> bytes:
return self._decompressor.unused_data
class BrotliDecompressor:
# Supports both 'brotlipy' and 'Brotli' packages
# since they share an import name. The top branches
# are for 'brotlipy' and bottom branches for 'Brotli'
def __init__(self) -> None:
if not HAS_BROTLI:
raise RuntimeError(
"The brotli decompression is not available. "
"Please install `Brotli` module"
)
self._obj = brotli.Decompressor()
def decompress_sync(self, data: bytes) -> bytes:
if hasattr(self._obj, "decompress"):
return cast(bytes, self._obj.decompress(data))
return cast(bytes, self._obj.process(data))
def flush(self) -> bytes:
if hasattr(self._obj, "flush"):
return cast(bytes, self._obj.flush())
return b""

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.venv/Lib/site-packages/aiohttp/cookiejar.py Normal file
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import asyncio
import calendar
import contextlib
import datetime
import os # noqa
import pathlib
import pickle
import re
import time
from collections import defaultdict
from http.cookies import BaseCookie, Morsel, SimpleCookie
from math import ceil
from typing import ( # noqa
DefaultDict,
Dict,
Iterable,
Iterator,
List,
Mapping,
Optional,
Set,
Tuple,
Union,
cast,
)
from yarl import URL
from .abc import AbstractCookieJar, ClearCookiePredicate
from .helpers import is_ip_address
from .typedefs import LooseCookies, PathLike, StrOrURL
__all__ = ("CookieJar", "DummyCookieJar")
CookieItem = Union[str, "Morsel[str]"]
class CookieJar(AbstractCookieJar):
"""Implements cookie storage adhering to RFC 6265."""
DATE_TOKENS_RE = re.compile(
r"[\x09\x20-\x2F\x3B-\x40\x5B-\x60\x7B-\x7E]*"
r"(?P<token>[\x00-\x08\x0A-\x1F\d:a-zA-Z\x7F-\xFF]+)"
)
DATE_HMS_TIME_RE = re.compile(r"(\d{1,2}):(\d{1,2}):(\d{1,2})")
DATE_DAY_OF_MONTH_RE = re.compile(r"(\d{1,2})")
DATE_MONTH_RE = re.compile(
"(jan)|(feb)|(mar)|(apr)|(may)|(jun)|(jul)|" "(aug)|(sep)|(oct)|(nov)|(dec)",
re.I,
)
DATE_YEAR_RE = re.compile(r"(\d{2,4})")
# calendar.timegm() fails for timestamps after datetime.datetime.max
# Minus one as a loss of precision occurs when timestamp() is called.
MAX_TIME = (
int(datetime.datetime.max.replace(tzinfo=datetime.timezone.utc).timestamp()) - 1
)
try:
calendar.timegm(time.gmtime(MAX_TIME))
except OSError:
# Hit the maximum representable time on Windows
# https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/localtime-localtime32-localtime64
MAX_TIME = calendar.timegm((3000, 12, 31, 23, 59, 59, -1, -1, -1))
except OverflowError:
# #4515: datetime.max may not be representable on 32-bit platforms
MAX_TIME = 2**31 - 1
# Avoid minuses in the future, 3x faster
SUB_MAX_TIME = MAX_TIME - 1
def __init__(
self,
*,
unsafe: bool = False,
quote_cookie: bool = True,
treat_as_secure_origin: Union[StrOrURL, List[StrOrURL], None] = None,
loop: Optional[asyncio.AbstractEventLoop] = None,
) -> None:
super().__init__(loop=loop)
self._cookies: DefaultDict[Tuple[str, str], SimpleCookie] = defaultdict(
SimpleCookie
)
self._host_only_cookies: Set[Tuple[str, str]] = set()
self._unsafe = unsafe
self._quote_cookie = quote_cookie
if treat_as_secure_origin is None:
treat_as_secure_origin = []
elif isinstance(treat_as_secure_origin, URL):
treat_as_secure_origin = [treat_as_secure_origin.origin()]
elif isinstance(treat_as_secure_origin, str):
treat_as_secure_origin = [URL(treat_as_secure_origin).origin()]
else:
treat_as_secure_origin = [
URL(url).origin() if isinstance(url, str) else url.origin()
for url in treat_as_secure_origin
]
self._treat_as_secure_origin = treat_as_secure_origin
self._next_expiration: float = ceil(time.time())
self._expirations: Dict[Tuple[str, str, str], float] = {}
def save(self, file_path: PathLike) -> None:
file_path = pathlib.Path(file_path)
with file_path.open(mode="wb") as f:
pickle.dump(self._cookies, f, pickle.HIGHEST_PROTOCOL)
def load(self, file_path: PathLike) -> None:
file_path = pathlib.Path(file_path)
with file_path.open(mode="rb") as f:
self._cookies = pickle.load(f)
def clear(self, predicate: Optional[ClearCookiePredicate] = None) -> None:
if predicate is None:
self._next_expiration = ceil(time.time())
self._cookies.clear()
self._host_only_cookies.clear()
self._expirations.clear()
return
to_del = []
now = time.time()
for (domain, path), cookie in self._cookies.items():
for name, morsel in cookie.items():
key = (domain, path, name)
if (
key in self._expirations and self._expirations[key] <= now
) or predicate(morsel):
to_del.append(key)
for domain, path, name in to_del:
self._host_only_cookies.discard((domain, name))
key = (domain, path, name)
if key in self._expirations:
del self._expirations[(domain, path, name)]
self._cookies[(domain, path)].pop(name, None)
self._next_expiration = (
min(*self._expirations.values(), self.SUB_MAX_TIME) + 1
if self._expirations
else self.MAX_TIME
)
def clear_domain(self, domain: str) -> None:
self.clear(lambda x: self._is_domain_match(domain, x["domain"]))
def __iter__(self) -> "Iterator[Morsel[str]]":
self._do_expiration()
for val in self._cookies.values():
yield from val.values()
def __len__(self) -> int:
return sum(1 for i in self)
def _do_expiration(self) -> None:
self.clear(lambda x: False)
def _expire_cookie(self, when: float, domain: str, path: str, name: str) -> None:
self._next_expiration = min(self._next_expiration, when)
self._expirations[(domain, path, name)] = when
def update_cookies(self, cookies: LooseCookies, response_url: URL = URL()) -> None:
"""Update cookies."""
hostname = response_url.raw_host
if not self._unsafe and is_ip_address(hostname):
# Don't accept cookies from IPs
return
if isinstance(cookies, Mapping):
cookies = cookies.items()
for name, cookie in cookies:
if not isinstance(cookie, Morsel):
tmp = SimpleCookie()
tmp[name] = cookie # type: ignore[assignment]
cookie = tmp[name]
domain = cookie["domain"]
# ignore domains with trailing dots
if domain.endswith("."):
domain = ""
del cookie["domain"]
if not domain and hostname is not None:
# Set the cookie's domain to the response hostname
# and set its host-only-flag
self._host_only_cookies.add((hostname, name))
domain = cookie["domain"] = hostname
if domain.startswith("."):
# Remove leading dot
domain = domain[1:]
cookie["domain"] = domain
if hostname and not self._is_domain_match(domain, hostname):
# Setting cookies for different domains is not allowed
continue
path = cookie["path"]
if not path or not path.startswith("/"):
# Set the cookie's path to the response path
path = response_url.path
if not path.startswith("/"):
path = "/"
else:
# Cut everything from the last slash to the end
path = "/" + path[1 : path.rfind("/")]
cookie["path"] = path
max_age = cookie["max-age"]
if max_age:
try:
delta_seconds = int(max_age)
max_age_expiration = min(time.time() + delta_seconds, self.MAX_TIME)
self._expire_cookie(max_age_expiration, domain, path, name)
except ValueError:
cookie["max-age"] = ""
else:
expires = cookie["expires"]
if expires:
expire_time = self._parse_date(expires)
if expire_time:
self._expire_cookie(expire_time, domain, path, name)
else:
cookie["expires"] = ""
self._cookies[(domain, path)][name] = cookie
self._do_expiration()
def filter_cookies(self, request_url: URL = URL()) -> "BaseCookie[str]":
"""Returns this jar's cookies filtered by their attributes."""
filtered: Union[SimpleCookie, "BaseCookie[str]"] = (
SimpleCookie() if self._quote_cookie else BaseCookie()
)
if not self._cookies:
# Skip do_expiration() if there are no cookies.
return filtered
self._do_expiration()
if not self._cookies:
# Skip rest of function if no non-expired cookies.
return filtered
request_url = URL(request_url)
hostname = request_url.raw_host or ""
is_not_secure = request_url.scheme not in ("https", "wss")
if is_not_secure and self._treat_as_secure_origin:
request_origin = URL()
with contextlib.suppress(ValueError):
request_origin = request_url.origin()
is_not_secure = request_origin not in self._treat_as_secure_origin
# Point 2: https://www.rfc-editor.org/rfc/rfc6265.html#section-5.4
for cookie in sorted(self, key=lambda c: len(c["path"])):
name = cookie.key
domain = cookie["domain"]
# Send shared cookies
if not domain:
filtered[name] = cookie.value
continue
if not self._unsafe and is_ip_address(hostname):
continue
if (domain, name) in self._host_only_cookies:
if domain != hostname:
continue
elif not self._is_domain_match(domain, hostname):
continue
if not self._is_path_match(request_url.path, cookie["path"]):
continue
if is_not_secure and cookie["secure"]:
continue
# It's critical we use the Morsel so the coded_value
# (based on cookie version) is preserved
mrsl_val = cast("Morsel[str]", cookie.get(cookie.key, Morsel()))
mrsl_val.set(cookie.key, cookie.value, cookie.coded_value)
filtered[name] = mrsl_val
return filtered
@staticmethod
def _is_domain_match(domain: str, hostname: str) -> bool:
"""Implements domain matching adhering to RFC 6265."""
if hostname == domain:
return True
if not hostname.endswith(domain):
return False
non_matching = hostname[: -len(domain)]
if not non_matching.endswith("."):
return False
return not is_ip_address(hostname)
@staticmethod
def _is_path_match(req_path: str, cookie_path: str) -> bool:
"""Implements path matching adhering to RFC 6265."""
if not req_path.startswith("/"):
req_path = "/"
if req_path == cookie_path:
return True
if not req_path.startswith(cookie_path):
return False
if cookie_path.endswith("/"):
return True
non_matching = req_path[len(cookie_path) :]
return non_matching.startswith("/")
@classmethod
def _parse_date(cls, date_str: str) -> Optional[int]:
"""Implements date string parsing adhering to RFC 6265."""
if not date_str:
return None
found_time = False
found_day = False
found_month = False
found_year = False
hour = minute = second = 0
day = 0
month = 0
year = 0
for token_match in cls.DATE_TOKENS_RE.finditer(date_str):
token = token_match.group("token")
if not found_time:
time_match = cls.DATE_HMS_TIME_RE.match(token)
if time_match:
found_time = True
hour, minute, second = (int(s) for s in time_match.groups())
continue
if not found_day:
day_match = cls.DATE_DAY_OF_MONTH_RE.match(token)
if day_match:
found_day = True
day = int(day_match.group())
continue
if not found_month:
month_match = cls.DATE_MONTH_RE.match(token)
if month_match:
found_month = True
assert month_match.lastindex is not None
month = month_match.lastindex
continue
if not found_year:
year_match = cls.DATE_YEAR_RE.match(token)
if year_match:
found_year = True
year = int(year_match.group())
if 70 <= year <= 99:
year += 1900
elif 0 <= year <= 69:
year += 2000
if False in (found_day, found_month, found_year, found_time):
return None
if not 1 <= day <= 31:
return None
if year < 1601 or hour > 23 or minute > 59 or second > 59:
return None
return calendar.timegm((year, month, day, hour, minute, second, -1, -1, -1))
class DummyCookieJar(AbstractCookieJar):
"""Implements a dummy cookie storage.
It can be used with the ClientSession when no cookie processing is needed.
"""
def __init__(self, *, loop: Optional[asyncio.AbstractEventLoop] = None) -> None:
super().__init__(loop=loop)
def __iter__(self) -> "Iterator[Morsel[str]]":
while False:
yield None
def __len__(self) -> int:
return 0
def clear(self, predicate: Optional[ClearCookiePredicate] = None) -> None:
pass
def clear_domain(self, domain: str) -> None:
pass
def update_cookies(self, cookies: LooseCookies, response_url: URL = URL()) -> None:
pass
def filter_cookies(self, request_url: URL) -> "BaseCookie[str]":
return SimpleCookie()

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import io
from typing import Any, Iterable, List, Optional
from urllib.parse import urlencode
from multidict import MultiDict, MultiDictProxy
from . import hdrs, multipart, payload
from .helpers import guess_filename
from .payload import Payload
__all__ = ("FormData",)
class FormData:
"""Helper class for form body generation.
Supports multipart/form-data and application/x-www-form-urlencoded.
"""
def __init__(
self,
fields: Iterable[Any] = (),
quote_fields: bool = True,
charset: Optional[str] = None,
) -> None:
self._writer = multipart.MultipartWriter("form-data")
self._fields: List[Any] = []
self._is_multipart = False
self._is_processed = False
self._quote_fields = quote_fields
self._charset = charset
if isinstance(fields, dict):
fields = list(fields.items())
elif not isinstance(fields, (list, tuple)):
fields = (fields,)
self.add_fields(*fields)
@property
def is_multipart(self) -> bool:
return self._is_multipart
def add_field(
self,
name: str,
value: Any,
*,
content_type: Optional[str] = None,
filename: Optional[str] = None,
content_transfer_encoding: Optional[str] = None,
) -> None:
if isinstance(value, io.IOBase):
self._is_multipart = True
elif isinstance(value, (bytes, bytearray, memoryview)):
if filename is None and content_transfer_encoding is None:
filename = name
type_options: MultiDict[str] = MultiDict({"name": name})
if filename is not None and not isinstance(filename, str):
raise TypeError(
"filename must be an instance of str. " "Got: %s" % filename
)
if filename is None and isinstance(value, io.IOBase):
filename = guess_filename(value, name)
if filename is not None:
type_options["filename"] = filename
self._is_multipart = True
headers = {}
if content_type is not None:
if not isinstance(content_type, str):
raise TypeError(
"content_type must be an instance of str. " "Got: %s" % content_type
)
headers[hdrs.CONTENT_TYPE] = content_type
self._is_multipart = True
if content_transfer_encoding is not None:
if not isinstance(content_transfer_encoding, str):
raise TypeError(
"content_transfer_encoding must be an instance"
" of str. Got: %s" % content_transfer_encoding
)
headers[hdrs.CONTENT_TRANSFER_ENCODING] = content_transfer_encoding
self._is_multipart = True
self._fields.append((type_options, headers, value))
def add_fields(self, *fields: Any) -> None:
to_add = list(fields)
while to_add:
rec = to_add.pop(0)
if isinstance(rec, io.IOBase):
k = guess_filename(rec, "unknown")
self.add_field(k, rec) # type: ignore[arg-type]
elif isinstance(rec, (MultiDictProxy, MultiDict)):
to_add.extend(rec.items())
elif isinstance(rec, (list, tuple)) and len(rec) == 2:
k, fp = rec
self.add_field(k, fp) # type: ignore[arg-type]
else:
raise TypeError(
"Only io.IOBase, multidict and (name, file) "
"pairs allowed, use .add_field() for passing "
"more complex parameters, got {!r}".format(rec)
)
def _gen_form_urlencoded(self) -> payload.BytesPayload:
# form data (x-www-form-urlencoded)
data = []
for type_options, _, value in self._fields:
data.append((type_options["name"], value))
charset = self._charset if self._charset is not None else "utf-8"
if charset == "utf-8":
content_type = "application/x-www-form-urlencoded"
else:
content_type = "application/x-www-form-urlencoded; " "charset=%s" % charset
return payload.BytesPayload(
urlencode(data, doseq=True, encoding=charset).encode(),
content_type=content_type,
)
def _gen_form_data(self) -> multipart.MultipartWriter:
"""Encode a list of fields using the multipart/form-data MIME format"""
if self._is_processed:
raise RuntimeError("Form data has been processed already")
for dispparams, headers, value in self._fields:
try:
if hdrs.CONTENT_TYPE in headers:
part = payload.get_payload(
value,
content_type=headers[hdrs.CONTENT_TYPE],
headers=headers,
encoding=self._charset,
)
else:
part = payload.get_payload(
value, headers=headers, encoding=self._charset
)
except Exception as exc:
raise TypeError(
"Can not serialize value type: %r\n "
"headers: %r\n value: %r" % (type(value), headers, value)
) from exc
if dispparams:
part.set_content_disposition(
"form-data", quote_fields=self._quote_fields, **dispparams
)
# FIXME cgi.FieldStorage doesn't likes body parts with
# Content-Length which were sent via chunked transfer encoding
assert part.headers is not None
part.headers.popall(hdrs.CONTENT_LENGTH, None)
self._writer.append_payload(part)
self._is_processed = True
return self._writer
def __call__(self) -> Payload:
if self._is_multipart:
return self._gen_form_data()
else:
return self._gen_form_urlencoded()

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"""HTTP Headers constants."""
# After changing the file content call ./tools/gen.py
# to regenerate the headers parser
from typing import Final, Set
from multidict import istr
METH_ANY: Final[str] = "*"
METH_CONNECT: Final[str] = "CONNECT"
METH_HEAD: Final[str] = "HEAD"
METH_GET: Final[str] = "GET"
METH_DELETE: Final[str] = "DELETE"
METH_OPTIONS: Final[str] = "OPTIONS"
METH_PATCH: Final[str] = "PATCH"
METH_POST: Final[str] = "POST"
METH_PUT: Final[str] = "PUT"
METH_TRACE: Final[str] = "TRACE"
METH_ALL: Final[Set[str]] = {
METH_CONNECT,
METH_HEAD,
METH_GET,
METH_DELETE,
METH_OPTIONS,
METH_PATCH,
METH_POST,
METH_PUT,
METH_TRACE,
}
ACCEPT: Final[istr] = istr("Accept")
ACCEPT_CHARSET: Final[istr] = istr("Accept-Charset")
ACCEPT_ENCODING: Final[istr] = istr("Accept-Encoding")
ACCEPT_LANGUAGE: Final[istr] = istr("Accept-Language")
ACCEPT_RANGES: Final[istr] = istr("Accept-Ranges")
ACCESS_CONTROL_MAX_AGE: Final[istr] = istr("Access-Control-Max-Age")
ACCESS_CONTROL_ALLOW_CREDENTIALS: Final[istr] = istr("Access-Control-Allow-Credentials")
ACCESS_CONTROL_ALLOW_HEADERS: Final[istr] = istr("Access-Control-Allow-Headers")
ACCESS_CONTROL_ALLOW_METHODS: Final[istr] = istr("Access-Control-Allow-Methods")
ACCESS_CONTROL_ALLOW_ORIGIN: Final[istr] = istr("Access-Control-Allow-Origin")
ACCESS_CONTROL_EXPOSE_HEADERS: Final[istr] = istr("Access-Control-Expose-Headers")
ACCESS_CONTROL_REQUEST_HEADERS: Final[istr] = istr("Access-Control-Request-Headers")
ACCESS_CONTROL_REQUEST_METHOD: Final[istr] = istr("Access-Control-Request-Method")
AGE: Final[istr] = istr("Age")
ALLOW: Final[istr] = istr("Allow")
AUTHORIZATION: Final[istr] = istr("Authorization")
CACHE_CONTROL: Final[istr] = istr("Cache-Control")
CONNECTION: Final[istr] = istr("Connection")
CONTENT_DISPOSITION: Final[istr] = istr("Content-Disposition")
CONTENT_ENCODING: Final[istr] = istr("Content-Encoding")
CONTENT_LANGUAGE: Final[istr] = istr("Content-Language")
CONTENT_LENGTH: Final[istr] = istr("Content-Length")
CONTENT_LOCATION: Final[istr] = istr("Content-Location")
CONTENT_MD5: Final[istr] = istr("Content-MD5")
CONTENT_RANGE: Final[istr] = istr("Content-Range")
CONTENT_TRANSFER_ENCODING: Final[istr] = istr("Content-Transfer-Encoding")
CONTENT_TYPE: Final[istr] = istr("Content-Type")
COOKIE: Final[istr] = istr("Cookie")
DATE: Final[istr] = istr("Date")
DESTINATION: Final[istr] = istr("Destination")
DIGEST: Final[istr] = istr("Digest")
ETAG: Final[istr] = istr("Etag")
EXPECT: Final[istr] = istr("Expect")
EXPIRES: Final[istr] = istr("Expires")
FORWARDED: Final[istr] = istr("Forwarded")
FROM: Final[istr] = istr("From")
HOST: Final[istr] = istr("Host")
IF_MATCH: Final[istr] = istr("If-Match")
IF_MODIFIED_SINCE: Final[istr] = istr("If-Modified-Since")
IF_NONE_MATCH: Final[istr] = istr("If-None-Match")
IF_RANGE: Final[istr] = istr("If-Range")
IF_UNMODIFIED_SINCE: Final[istr] = istr("If-Unmodified-Since")
KEEP_ALIVE: Final[istr] = istr("Keep-Alive")
LAST_EVENT_ID: Final[istr] = istr("Last-Event-ID")
LAST_MODIFIED: Final[istr] = istr("Last-Modified")
LINK: Final[istr] = istr("Link")
LOCATION: Final[istr] = istr("Location")
MAX_FORWARDS: Final[istr] = istr("Max-Forwards")
ORIGIN: Final[istr] = istr("Origin")
PRAGMA: Final[istr] = istr("Pragma")
PROXY_AUTHENTICATE: Final[istr] = istr("Proxy-Authenticate")
PROXY_AUTHORIZATION: Final[istr] = istr("Proxy-Authorization")
RANGE: Final[istr] = istr("Range")
REFERER: Final[istr] = istr("Referer")
RETRY_AFTER: Final[istr] = istr("Retry-After")
SEC_WEBSOCKET_ACCEPT: Final[istr] = istr("Sec-WebSocket-Accept")
SEC_WEBSOCKET_VERSION: Final[istr] = istr("Sec-WebSocket-Version")
SEC_WEBSOCKET_PROTOCOL: Final[istr] = istr("Sec-WebSocket-Protocol")
SEC_WEBSOCKET_EXTENSIONS: Final[istr] = istr("Sec-WebSocket-Extensions")
SEC_WEBSOCKET_KEY: Final[istr] = istr("Sec-WebSocket-Key")
SEC_WEBSOCKET_KEY1: Final[istr] = istr("Sec-WebSocket-Key1")
SERVER: Final[istr] = istr("Server")
SET_COOKIE: Final[istr] = istr("Set-Cookie")
TE: Final[istr] = istr("TE")
TRAILER: Final[istr] = istr("Trailer")
TRANSFER_ENCODING: Final[istr] = istr("Transfer-Encoding")
UPGRADE: Final[istr] = istr("Upgrade")
URI: Final[istr] = istr("URI")
USER_AGENT: Final[istr] = istr("User-Agent")
VARY: Final[istr] = istr("Vary")
VIA: Final[istr] = istr("Via")
WANT_DIGEST: Final[istr] = istr("Want-Digest")
WARNING: Final[istr] = istr("Warning")
WWW_AUTHENTICATE: Final[istr] = istr("WWW-Authenticate")
X_FORWARDED_FOR: Final[istr] = istr("X-Forwarded-For")
X_FORWARDED_HOST: Final[istr] = istr("X-Forwarded-Host")
X_FORWARDED_PROTO: Final[istr] = istr("X-Forwarded-Proto")

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"""Various helper functions"""
import asyncio
import base64
import binascii
import contextlib
import datetime
import enum
import functools
import inspect
import netrc
import os
import platform
import re
import sys
import time
import warnings
import weakref
from collections import namedtuple
from contextlib import suppress
from email.parser import HeaderParser
from email.utils import parsedate
from math import ceil
from pathlib import Path
from types import TracebackType
from typing import (
Any,
Callable,
ContextManager,
Dict,
Generator,
Generic,
Iterable,
Iterator,
List,
Mapping,
Optional,
Pattern,
Protocol,
Tuple,
Type,
TypeVar,
Union,
get_args,
overload,
)
from urllib.parse import quote
from urllib.request import getproxies, proxy_bypass
import attr
from multidict import MultiDict, MultiDictProxy, MultiMapping
from yarl import URL
from . import hdrs
from .log import client_logger, internal_logger
if sys.version_info >= (3, 11):
import asyncio as async_timeout
else:
import async_timeout
__all__ = ("BasicAuth", "ChainMapProxy", "ETag")
IS_MACOS = platform.system() == "Darwin"
IS_WINDOWS = platform.system() == "Windows"
PY_310 = sys.version_info >= (3, 10)
PY_311 = sys.version_info >= (3, 11)
_T = TypeVar("_T")
_S = TypeVar("_S")
_SENTINEL = enum.Enum("_SENTINEL", "sentinel")
sentinel = _SENTINEL.sentinel
NO_EXTENSIONS = bool(os.environ.get("AIOHTTP_NO_EXTENSIONS"))
DEBUG = sys.flags.dev_mode or (
not sys.flags.ignore_environment and bool(os.environ.get("PYTHONASYNCIODEBUG"))
)
CHAR = {chr(i) for i in range(0, 128)}
CTL = {chr(i) for i in range(0, 32)} | {
chr(127),
}
SEPARATORS = {
"(",
")",
"<",
">",
"@",
",",
";",
":",
"\\",
'"',
"/",
"[",
"]",
"?",
"=",
"{",
"}",
" ",
chr(9),
}
TOKEN = CHAR ^ CTL ^ SEPARATORS
class noop:
def __await__(self) -> Generator[None, None, None]:
yield
class BasicAuth(namedtuple("BasicAuth", ["login", "password", "encoding"])):
"""Http basic authentication helper."""
def __new__(
cls, login: str, password: str = "", encoding: str = "latin1"
) -> "BasicAuth":
if login is None:
raise ValueError("None is not allowed as login value")
if password is None:
raise ValueError("None is not allowed as password value")
if ":" in login:
raise ValueError('A ":" is not allowed in login (RFC 1945#section-11.1)')
return super().__new__(cls, login, password, encoding)
@classmethod
def decode(cls, auth_header: str, encoding: str = "latin1") -> "BasicAuth":
"""Create a BasicAuth object from an Authorization HTTP header."""
try:
auth_type, encoded_credentials = auth_header.split(" ", 1)
except ValueError:
raise ValueError("Could not parse authorization header.")
if auth_type.lower() != "basic":
raise ValueError("Unknown authorization method %s" % auth_type)
try:
decoded = base64.b64decode(
encoded_credentials.encode("ascii"), validate=True
).decode(encoding)
except binascii.Error:
raise ValueError("Invalid base64 encoding.")
try:
# RFC 2617 HTTP Authentication
# https://www.ietf.org/rfc/rfc2617.txt
# the colon must be present, but the username and password may be
# otherwise blank.
username, password = decoded.split(":", 1)
except ValueError:
raise ValueError("Invalid credentials.")
return cls(username, password, encoding=encoding)
@classmethod
def from_url(cls, url: URL, *, encoding: str = "latin1") -> Optional["BasicAuth"]:
"""Create BasicAuth from url."""
if not isinstance(url, URL):
raise TypeError("url should be yarl.URL instance")
if url.user is None:
return None
return cls(url.user, url.password or "", encoding=encoding)
def encode(self) -> str:
"""Encode credentials."""
creds = (f"{self.login}:{self.password}").encode(self.encoding)
return "Basic %s" % base64.b64encode(creds).decode(self.encoding)
def strip_auth_from_url(url: URL) -> Tuple[URL, Optional[BasicAuth]]:
auth = BasicAuth.from_url(url)
if auth is None:
return url, None
else:
return url.with_user(None), auth
def netrc_from_env() -> Optional[netrc.netrc]:
"""Load netrc from file.
Attempt to load it from the path specified by the env-var
NETRC or in the default location in the user's home directory.
Returns None if it couldn't be found or fails to parse.
"""
netrc_env = os.environ.get("NETRC")
if netrc_env is not None:
netrc_path = Path(netrc_env)
else:
try:
home_dir = Path.home()
except RuntimeError as e: # pragma: no cover
# if pathlib can't resolve home, it may raise a RuntimeError
client_logger.debug(
"Could not resolve home directory when "
"trying to look for .netrc file: %s",
e,
)
return None
netrc_path = home_dir / ("_netrc" if IS_WINDOWS else ".netrc")
try:
return netrc.netrc(str(netrc_path))
except netrc.NetrcParseError as e:
client_logger.warning("Could not parse .netrc file: %s", e)
except OSError as e:
netrc_exists = False
with contextlib.suppress(OSError):
netrc_exists = netrc_path.is_file()
# we couldn't read the file (doesn't exist, permissions, etc.)
if netrc_env or netrc_exists:
# only warn if the environment wanted us to load it,
# or it appears like the default file does actually exist
client_logger.warning("Could not read .netrc file: %s", e)
return None
@attr.s(auto_attribs=True, frozen=True, slots=True)
class ProxyInfo:
proxy: URL
proxy_auth: Optional[BasicAuth]
def basicauth_from_netrc(netrc_obj: Optional[netrc.netrc], host: str) -> BasicAuth:
"""
Return :py:class:`~aiohttp.BasicAuth` credentials for ``host`` from ``netrc_obj``.
:raises LookupError: if ``netrc_obj`` is :py:data:`None` or if no
entry is found for the ``host``.
"""
if netrc_obj is None:
raise LookupError("No .netrc file found")
auth_from_netrc = netrc_obj.authenticators(host)
if auth_from_netrc is None:
raise LookupError(f"No entry for {host!s} found in the `.netrc` file.")
login, account, password = auth_from_netrc
# TODO(PY311): username = login or account
# Up to python 3.10, account could be None if not specified,
# and login will be empty string if not specified. From 3.11,
# login and account will be empty string if not specified.
username = login if (login or account is None) else account
# TODO(PY311): Remove this, as password will be empty string
# if not specified
if password is None:
password = ""
return BasicAuth(username, password)
def proxies_from_env() -> Dict[str, ProxyInfo]:
proxy_urls = {
k: URL(v)
for k, v in getproxies().items()
if k in ("http", "https", "ws", "wss")
}
netrc_obj = netrc_from_env()
stripped = {k: strip_auth_from_url(v) for k, v in proxy_urls.items()}
ret = {}
for proto, val in stripped.items():
proxy, auth = val
if proxy.scheme in ("https", "wss"):
client_logger.warning(
"%s proxies %s are not supported, ignoring", proxy.scheme.upper(), proxy
)
continue
if netrc_obj and auth is None:
if proxy.host is not None:
try:
auth = basicauth_from_netrc(netrc_obj, proxy.host)
except LookupError:
auth = None
ret[proto] = ProxyInfo(proxy, auth)
return ret
def current_task(
loop: Optional[asyncio.AbstractEventLoop] = None,
) -> "Optional[asyncio.Task[Any]]":
return asyncio.current_task(loop=loop)
def get_running_loop(
loop: Optional[asyncio.AbstractEventLoop] = None,
) -> asyncio.AbstractEventLoop:
if loop is None:
loop = asyncio.get_event_loop()
if not loop.is_running():
warnings.warn(
"The object should be created within an async function",
DeprecationWarning,
stacklevel=3,
)
if loop.get_debug():
internal_logger.warning(
"The object should be created within an async function", stack_info=True
)
return loop
def isasyncgenfunction(obj: Any) -> bool:
func = getattr(inspect, "isasyncgenfunction", None)
if func is not None:
return func(obj) # type: ignore[no-any-return]
else:
return False
def get_env_proxy_for_url(url: URL) -> Tuple[URL, Optional[BasicAuth]]:
"""Get a permitted proxy for the given URL from the env."""
if url.host is not None and proxy_bypass(url.host):
raise LookupError(f"Proxying is disallowed for `{url.host!r}`")
proxies_in_env = proxies_from_env()
try:
proxy_info = proxies_in_env[url.scheme]
except KeyError:
raise LookupError(f"No proxies found for `{url!s}` in the env")
else:
return proxy_info.proxy, proxy_info.proxy_auth
@attr.s(auto_attribs=True, frozen=True, slots=True)
class MimeType:
type: str
subtype: str
suffix: str
parameters: "MultiDictProxy[str]"
@functools.lru_cache(maxsize=56)
def parse_mimetype(mimetype: str) -> MimeType:
"""Parses a MIME type into its components.
mimetype is a MIME type string.
Returns a MimeType object.
Example:
>>> parse_mimetype('text/html; charset=utf-8')
MimeType(type='text', subtype='html', suffix='',
parameters={'charset': 'utf-8'})
"""
if not mimetype:
return MimeType(
type="", subtype="", suffix="", parameters=MultiDictProxy(MultiDict())
)
parts = mimetype.split(";")
params: MultiDict[str] = MultiDict()
for item in parts[1:]:
if not item:
continue
key, _, value = item.partition("=")
params.add(key.lower().strip(), value.strip(' "'))
fulltype = parts[0].strip().lower()
if fulltype == "*":
fulltype = "*/*"
mtype, _, stype = fulltype.partition("/")
stype, _, suffix = stype.partition("+")
return MimeType(
type=mtype, subtype=stype, suffix=suffix, parameters=MultiDictProxy(params)
)
def guess_filename(obj: Any, default: Optional[str] = None) -> Optional[str]:
name = getattr(obj, "name", None)
if name and isinstance(name, str) and name[0] != "<" and name[-1] != ">":
return Path(name).name
return default
not_qtext_re = re.compile(r"[^\041\043-\133\135-\176]")
QCONTENT = {chr(i) for i in range(0x20, 0x7F)} | {"\t"}
def quoted_string(content: str) -> str:
"""Return 7-bit content as quoted-string.
Format content into a quoted-string as defined in RFC5322 for
Internet Message Format. Notice that this is not the 8-bit HTTP
format, but the 7-bit email format. Content must be in usascii or
a ValueError is raised.
"""
if not (QCONTENT > set(content)):
raise ValueError(f"bad content for quoted-string {content!r}")
return not_qtext_re.sub(lambda x: "\\" + x.group(0), content)
def content_disposition_header(
disptype: str, quote_fields: bool = True, _charset: str = "utf-8", **params: str
) -> str:
"""Sets ``Content-Disposition`` header for MIME.
This is the MIME payload Content-Disposition header from RFC 2183
and RFC 7579 section 4.2, not the HTTP Content-Disposition from
RFC 6266.
disptype is a disposition type: inline, attachment, form-data.
Should be valid extension token (see RFC 2183)
quote_fields performs value quoting to 7-bit MIME headers
according to RFC 7578. Set to quote_fields to False if recipient
can take 8-bit file names and field values.
_charset specifies the charset to use when quote_fields is True.
params is a dict with disposition params.
"""
if not disptype or not (TOKEN > set(disptype)):
raise ValueError("bad content disposition type {!r}" "".format(disptype))
value = disptype
if params:
lparams = []
for key, val in params.items():
if not key or not (TOKEN > set(key)):
raise ValueError(
"bad content disposition parameter" " {!r}={!r}".format(key, val)
)
if quote_fields:
if key.lower() == "filename":
qval = quote(val, "", encoding=_charset)
lparams.append((key, '"%s"' % qval))
else:
try:
qval = quoted_string(val)
except ValueError:
qval = "".join(
(_charset, "''", quote(val, "", encoding=_charset))
)
lparams.append((key + "*", qval))
else:
lparams.append((key, '"%s"' % qval))
else:
qval = val.replace("\\", "\\\\").replace('"', '\\"')
lparams.append((key, '"%s"' % qval))
sparams = "; ".join("=".join(pair) for pair in lparams)
value = "; ".join((value, sparams))
return value
class _TSelf(Protocol, Generic[_T]):
_cache: Dict[str, _T]
class reify(Generic[_T]):
"""Use as a class method decorator.
It operates almost exactly like
the Python `@property` decorator, but it puts the result of the
method it decorates into the instance dict after the first call,
effectively replacing the function it decorates with an instance
variable. It is, in Python parlance, a data descriptor.
"""
def __init__(self, wrapped: Callable[..., _T]) -> None:
self.wrapped = wrapped
self.__doc__ = wrapped.__doc__
self.name = wrapped.__name__
def __get__(self, inst: _TSelf[_T], owner: Optional[Type[Any]] = None) -> _T:
try:
try:
return inst._cache[self.name]
except KeyError:
val = self.wrapped(inst)
inst._cache[self.name] = val
return val
except AttributeError:
if inst is None:
return self
raise
def __set__(self, inst: _TSelf[_T], value: _T) -> None:
raise AttributeError("reified property is read-only")
reify_py = reify
try:
from ._helpers import reify as reify_c
if not NO_EXTENSIONS:
reify = reify_c # type: ignore[misc,assignment]
except ImportError:
pass
_ipv4_pattern = (
r"^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}"
r"(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$"
)
_ipv6_pattern = (
r"^(?:(?:(?:[A-F0-9]{1,4}:){6}|(?=(?:[A-F0-9]{0,4}:){0,6}"
r"(?:[0-9]{1,3}\.){3}[0-9]{1,3}$)(([0-9A-F]{1,4}:){0,5}|:)"
r"((:[0-9A-F]{1,4}){1,5}:|:)|::(?:[A-F0-9]{1,4}:){5})"
r"(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\.){3}"
r"(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])|(?:[A-F0-9]{1,4}:){7}"
r"[A-F0-9]{1,4}|(?=(?:[A-F0-9]{0,4}:){0,7}[A-F0-9]{0,4}$)"
r"(([0-9A-F]{1,4}:){1,7}|:)((:[0-9A-F]{1,4}){1,7}|:)|(?:[A-F0-9]{1,4}:){7}"
r":|:(:[A-F0-9]{1,4}){7})$"
)
_ipv4_regex = re.compile(_ipv4_pattern)
_ipv6_regex = re.compile(_ipv6_pattern, flags=re.IGNORECASE)
_ipv4_regexb = re.compile(_ipv4_pattern.encode("ascii"))
_ipv6_regexb = re.compile(_ipv6_pattern.encode("ascii"), flags=re.IGNORECASE)
def _is_ip_address(
regex: Pattern[str], regexb: Pattern[bytes], host: Optional[Union[str, bytes]]
) -> bool:
if host is None:
return False
if isinstance(host, str):
return bool(regex.match(host))
elif isinstance(host, (bytes, bytearray, memoryview)):
return bool(regexb.match(host))
else:
raise TypeError(f"{host} [{type(host)}] is not a str or bytes")
is_ipv4_address = functools.partial(_is_ip_address, _ipv4_regex, _ipv4_regexb)
is_ipv6_address = functools.partial(_is_ip_address, _ipv6_regex, _ipv6_regexb)
def is_ip_address(host: Optional[Union[str, bytes, bytearray, memoryview]]) -> bool:
return is_ipv4_address(host) or is_ipv6_address(host)
_cached_current_datetime: Optional[int] = None
_cached_formatted_datetime = ""
def rfc822_formatted_time() -> str:
global _cached_current_datetime
global _cached_formatted_datetime
now = int(time.time())
if now != _cached_current_datetime:
# Weekday and month names for HTTP date/time formatting;
# always English!
# Tuples are constants stored in codeobject!
_weekdayname = ("Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun")
_monthname = (
"", # Dummy so we can use 1-based month numbers
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun",
"Jul",
"Aug",
"Sep",
"Oct",
"Nov",
"Dec",
)
year, month, day, hh, mm, ss, wd, *tail = time.gmtime(now)
_cached_formatted_datetime = "%s, %02d %3s %4d %02d:%02d:%02d GMT" % (
_weekdayname[wd],
day,
_monthname[month],
year,
hh,
mm,
ss,
)
_cached_current_datetime = now
return _cached_formatted_datetime
def _weakref_handle(info: "Tuple[weakref.ref[object], str]") -> None:
ref, name = info
ob = ref()
if ob is not None:
with suppress(Exception):
getattr(ob, name)()
def weakref_handle(
ob: object,
name: str,
timeout: float,
loop: asyncio.AbstractEventLoop,
timeout_ceil_threshold: float = 5,
) -> Optional[asyncio.TimerHandle]:
if timeout is not None and timeout > 0:
when = loop.time() + timeout
if timeout >= timeout_ceil_threshold:
when = ceil(when)
return loop.call_at(when, _weakref_handle, (weakref.ref(ob), name))
return None
def call_later(
cb: Callable[[], Any],
timeout: float,
loop: asyncio.AbstractEventLoop,
timeout_ceil_threshold: float = 5,
) -> Optional[asyncio.TimerHandle]:
if timeout is not None and timeout > 0:
when = loop.time() + timeout
if timeout > timeout_ceil_threshold:
when = ceil(when)
return loop.call_at(when, cb)
return None
class TimeoutHandle:
"""Timeout handle"""
def __init__(
self,
loop: asyncio.AbstractEventLoop,
timeout: Optional[float],
ceil_threshold: float = 5,
) -> None:
self._timeout = timeout
self._loop = loop
self._ceil_threshold = ceil_threshold
self._callbacks: List[
Tuple[Callable[..., None], Tuple[Any, ...], Dict[str, Any]]
] = []
def register(
self, callback: Callable[..., None], *args: Any, **kwargs: Any
) -> None:
self._callbacks.append((callback, args, kwargs))
def close(self) -> None:
self._callbacks.clear()
def start(self) -> Optional[asyncio.Handle]:
timeout = self._timeout
if timeout is not None and timeout > 0:
when = self._loop.time() + timeout
if timeout >= self._ceil_threshold:
when = ceil(when)
return self._loop.call_at(when, self.__call__)
else:
return None
def timer(self) -> "BaseTimerContext":
if self._timeout is not None and self._timeout > 0:
timer = TimerContext(self._loop)
self.register(timer.timeout)
return timer
else:
return TimerNoop()
def __call__(self) -> None:
for cb, args, kwargs in self._callbacks:
with suppress(Exception):
cb(*args, **kwargs)
self._callbacks.clear()
class BaseTimerContext(ContextManager["BaseTimerContext"]):
def assert_timeout(self) -> None:
"""Raise TimeoutError if timeout has been exceeded."""
class TimerNoop(BaseTimerContext):
def __enter__(self) -> BaseTimerContext:
return self
def __exit__(
self,
exc_type: Optional[Type[BaseException]],
exc_val: Optional[BaseException],
exc_tb: Optional[TracebackType],
) -> None:
return
class TimerContext(BaseTimerContext):
"""Low resolution timeout context manager"""
def __init__(self, loop: asyncio.AbstractEventLoop) -> None:
self._loop = loop
self._tasks: List[asyncio.Task[Any]] = []
self._cancelled = False
def assert_timeout(self) -> None:
"""Raise TimeoutError if timer has already been cancelled."""
if self._cancelled:
raise asyncio.TimeoutError from None
def __enter__(self) -> BaseTimerContext:
task = current_task(loop=self._loop)
if task is None:
raise RuntimeError(
"Timeout context manager should be used " "inside a task"
)
if self._cancelled:
raise asyncio.TimeoutError from None
self._tasks.append(task)
return self
def __exit__(
self,
exc_type: Optional[Type[BaseException]],
exc_val: Optional[BaseException],
exc_tb: Optional[TracebackType],
) -> Optional[bool]:
if self._tasks:
self._tasks.pop()
if exc_type is asyncio.CancelledError and self._cancelled:
raise asyncio.TimeoutError from None
return None
def timeout(self) -> None:
if not self._cancelled:
for task in set(self._tasks):
task.cancel()
self._cancelled = True
def ceil_timeout(
delay: Optional[float], ceil_threshold: float = 5
) -> async_timeout.Timeout:
if delay is None or delay <= 0:
return async_timeout.timeout(None)
loop = get_running_loop()
now = loop.time()
when = now + delay
if delay > ceil_threshold:
when = ceil(when)
return async_timeout.timeout_at(when)
class HeadersMixin:
ATTRS = frozenset(["_content_type", "_content_dict", "_stored_content_type"])
_headers: MultiMapping[str]
_content_type: Optional[str] = None
_content_dict: Optional[Dict[str, str]] = None
_stored_content_type: Union[str, None, _SENTINEL] = sentinel
def _parse_content_type(self, raw: Optional[str]) -> None:
self._stored_content_type = raw
if raw is None:
# default value according to RFC 2616
self._content_type = "application/octet-stream"
self._content_dict = {}
else:
msg = HeaderParser().parsestr("Content-Type: " + raw)
self._content_type = msg.get_content_type()
params = msg.get_params(())
self._content_dict = dict(params[1:]) # First element is content type again
@property
def content_type(self) -> str:
"""The value of content part for Content-Type HTTP header."""
raw = self._headers.get(hdrs.CONTENT_TYPE)
if self._stored_content_type != raw:
self._parse_content_type(raw)
return self._content_type # type: ignore[return-value]
@property
def charset(self) -> Optional[str]:
"""The value of charset part for Content-Type HTTP header."""
raw = self._headers.get(hdrs.CONTENT_TYPE)
if self._stored_content_type != raw:
self._parse_content_type(raw)
return self._content_dict.get("charset") # type: ignore[union-attr]
@property
def content_length(self) -> Optional[int]:
"""The value of Content-Length HTTP header."""
content_length = self._headers.get(hdrs.CONTENT_LENGTH)
if content_length is not None:
return int(content_length)
else:
return None
def set_result(fut: "asyncio.Future[_T]", result: _T) -> None:
if not fut.done():
fut.set_result(result)
def set_exception(fut: "asyncio.Future[_T]", exc: BaseException) -> None:
if not fut.done():
fut.set_exception(exc)
@functools.total_ordering
class AppKey(Generic[_T]):
"""Keys for static typing support in Application."""
__slots__ = ("_name", "_t", "__orig_class__")
# This may be set by Python when instantiating with a generic type. We need to
# support this, in order to support types that are not concrete classes,
# like Iterable, which can't be passed as the second parameter to __init__.
__orig_class__: Type[object]
def __init__(self, name: str, t: Optional[Type[_T]] = None):
# Prefix with module name to help deduplicate key names.
frame = inspect.currentframe()
while frame:
if frame.f_code.co_name == "<module>":
module: str = frame.f_globals["__name__"]
break
frame = frame.f_back
self._name = module + "." + name
self._t = t
def __lt__(self, other: object) -> bool:
if isinstance(other, AppKey):
return self._name < other._name
return True # Order AppKey above other types.
def __repr__(self) -> str:
t = self._t
if t is None:
with suppress(AttributeError):
# Set to type arg.
t = get_args(self.__orig_class__)[0]
if t is None:
t_repr = "<<Unknown>>"
elif isinstance(t, type):
if t.__module__ == "builtins":
t_repr = t.__qualname__
else:
t_repr = f"{t.__module__}.{t.__qualname__}"
else:
t_repr = repr(t)
return f"<AppKey({self._name}, type={t_repr})>"
class ChainMapProxy(Mapping[Union[str, AppKey[Any]], Any]):
__slots__ = ("_maps",)
def __init__(self, maps: Iterable[Mapping[Union[str, AppKey[Any]], Any]]) -> None:
self._maps = tuple(maps)
def __init_subclass__(cls) -> None:
raise TypeError(
"Inheritance class {} from ChainMapProxy "
"is forbidden".format(cls.__name__)
)
@overload # type: ignore[override]
def __getitem__(self, key: AppKey[_T]) -> _T:
...
@overload
def __getitem__(self, key: str) -> Any:
...
def __getitem__(self, key: Union[str, AppKey[_T]]) -> Any:
for mapping in self._maps:
try:
return mapping[key]
except KeyError:
pass
raise KeyError(key)
@overload # type: ignore[override]
def get(self, key: AppKey[_T], default: _S) -> Union[_T, _S]:
...
@overload
def get(self, key: AppKey[_T], default: None = ...) -> Optional[_T]:
...
@overload
def get(self, key: str, default: Any = ...) -> Any:
...
def get(self, key: Union[str, AppKey[_T]], default: Any = None) -> Any:
try:
return self[key]
except KeyError:
return default
def __len__(self) -> int:
# reuses stored hash values if possible
return len(set().union(*self._maps))
def __iter__(self) -> Iterator[Union[str, AppKey[Any]]]:
d: Dict[Union[str, AppKey[Any]], Any] = {}
for mapping in reversed(self._maps):
# reuses stored hash values if possible
d.update(mapping)
return iter(d)
def __contains__(self, key: object) -> bool:
return any(key in m for m in self._maps)
def __bool__(self) -> bool:
return any(self._maps)
def __repr__(self) -> str:
content = ", ".join(map(repr, self._maps))
return f"ChainMapProxy({content})"
# https://tools.ietf.org/html/rfc7232#section-2.3
_ETAGC = r"[!\x23-\x7E\x80-\xff]+"
_ETAGC_RE = re.compile(_ETAGC)
_QUOTED_ETAG = rf'(W/)?"({_ETAGC})"'
QUOTED_ETAG_RE = re.compile(_QUOTED_ETAG)
LIST_QUOTED_ETAG_RE = re.compile(rf"({_QUOTED_ETAG})(?:\s*,\s*|$)|(.)")
ETAG_ANY = "*"
@attr.s(auto_attribs=True, frozen=True, slots=True)
class ETag:
value: str
is_weak: bool = False
def validate_etag_value(value: str) -> None:
if value != ETAG_ANY and not _ETAGC_RE.fullmatch(value):
raise ValueError(
f"Value {value!r} is not a valid etag. Maybe it contains '\"'?"
)
def parse_http_date(date_str: Optional[str]) -> Optional[datetime.datetime]:
"""Process a date string, return a datetime object"""
if date_str is not None:
timetuple = parsedate(date_str)
if timetuple is not None:
with suppress(ValueError):
return datetime.datetime(*timetuple[:6], tzinfo=datetime.timezone.utc)
return None
def must_be_empty_body(method: str, code: int) -> bool:
"""Check if a request must return an empty body."""
return (
status_code_must_be_empty_body(code)
or method_must_be_empty_body(method)
or (200 <= code < 300 and method.upper() == hdrs.METH_CONNECT)
)
def method_must_be_empty_body(method: str) -> bool:
"""Check if a method must return an empty body."""
# https://datatracker.ietf.org/doc/html/rfc9112#section-6.3-2.1
# https://datatracker.ietf.org/doc/html/rfc9112#section-6.3-2.2
return method.upper() == hdrs.METH_HEAD
def status_code_must_be_empty_body(code: int) -> bool:
"""Check if a status code must return an empty body."""
# https://datatracker.ietf.org/doc/html/rfc9112#section-6.3-2.1
return code in {204, 304} or 100 <= code < 200
def should_remove_content_length(method: str, code: int) -> bool:
"""Check if a Content-Length header should be removed.
This should always be a subset of must_be_empty_body
"""
# https://www.rfc-editor.org/rfc/rfc9110.html#section-8.6-8
# https://www.rfc-editor.org/rfc/rfc9110.html#section-15.4.5-4
return (
code in {204, 304}
or 100 <= code < 200
or (200 <= code < 300 and method.upper() == hdrs.METH_CONNECT)
)

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.venv/Lib/site-packages/aiohttp/http.py Normal file
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import sys
from http import HTTPStatus
from typing import Mapping, Tuple
from . import __version__
from .http_exceptions import HttpProcessingError as HttpProcessingError
from .http_parser import (
HeadersParser as HeadersParser,
HttpParser as HttpParser,
HttpRequestParser as HttpRequestParser,
HttpResponseParser as HttpResponseParser,
RawRequestMessage as RawRequestMessage,
RawResponseMessage as RawResponseMessage,
)
from .http_websocket import (
WS_CLOSED_MESSAGE as WS_CLOSED_MESSAGE,
WS_CLOSING_MESSAGE as WS_CLOSING_MESSAGE,
WS_KEY as WS_KEY,
WebSocketError as WebSocketError,
WebSocketReader as WebSocketReader,
WebSocketWriter as WebSocketWriter,
WSCloseCode as WSCloseCode,
WSMessage as WSMessage,
WSMsgType as WSMsgType,
ws_ext_gen as ws_ext_gen,
ws_ext_parse as ws_ext_parse,
)
from .http_writer import (
HttpVersion as HttpVersion,
HttpVersion10 as HttpVersion10,
HttpVersion11 as HttpVersion11,
StreamWriter as StreamWriter,
)
__all__ = (
"HttpProcessingError",
"RESPONSES",
"SERVER_SOFTWARE",
# .http_writer
"StreamWriter",
"HttpVersion",
"HttpVersion10",
"HttpVersion11",
# .http_parser
"HeadersParser",
"HttpParser",
"HttpRequestParser",
"HttpResponseParser",
"RawRequestMessage",
"RawResponseMessage",
# .http_websocket
"WS_CLOSED_MESSAGE",
"WS_CLOSING_MESSAGE",
"WS_KEY",
"WebSocketReader",
"WebSocketWriter",
"ws_ext_gen",
"ws_ext_parse",
"WSMessage",
"WebSocketError",
"WSMsgType",
"WSCloseCode",
)
SERVER_SOFTWARE: str = "Python/{0[0]}.{0[1]} aiohttp/{1}".format(
sys.version_info, __version__
)
RESPONSES: Mapping[int, Tuple[str, str]] = {
v: (v.phrase, v.description) for v in HTTPStatus.__members__.values()
}

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"""Low-level http related exceptions."""
from textwrap import indent
from typing import Optional, Union
from .typedefs import _CIMultiDict
__all__ = ("HttpProcessingError",)
class HttpProcessingError(Exception):
"""HTTP error.
Shortcut for raising HTTP errors with custom code, message and headers.
code: HTTP Error code.
message: (optional) Error message.
headers: (optional) Headers to be sent in response, a list of pairs
"""
code = 0
message = ""
headers = None
def __init__(
self,
*,
code: Optional[int] = None,
message: str = "",
headers: Optional[_CIMultiDict] = None,
) -> None:
if code is not None:
self.code = code
self.headers = headers
self.message = message
def __str__(self) -> str:
msg = indent(self.message, " ")
return f"{self.code}, message:\n{msg}"
def __repr__(self) -> str:
return f"<{self.__class__.__name__}: {self.code}, message={self.message!r}>"
class BadHttpMessage(HttpProcessingError):
code = 400
message = "Bad Request"
def __init__(self, message: str, *, headers: Optional[_CIMultiDict] = None) -> None:
super().__init__(message=message, headers=headers)
self.args = (message,)
class HttpBadRequest(BadHttpMessage):
code = 400
message = "Bad Request"
class PayloadEncodingError(BadHttpMessage):
"""Base class for payload errors"""
class ContentEncodingError(PayloadEncodingError):
"""Content encoding error."""
class TransferEncodingError(PayloadEncodingError):
"""transfer encoding error."""
class ContentLengthError(PayloadEncodingError):
"""Not enough data for satisfy content length header."""
class LineTooLong(BadHttpMessage):
def __init__(
self, line: str, limit: str = "Unknown", actual_size: str = "Unknown"
) -> None:
super().__init__(
f"Got more than {limit} bytes ({actual_size}) when reading {line}."
)
self.args = (line, limit, actual_size)
class InvalidHeader(BadHttpMessage):
def __init__(self, hdr: Union[bytes, str]) -> None:
hdr_s = hdr.decode(errors="backslashreplace") if isinstance(hdr, bytes) else hdr
super().__init__(f"Invalid HTTP header: {hdr!r}")
self.hdr = hdr_s
self.args = (hdr,)
class BadStatusLine(BadHttpMessage):
def __init__(self, line: str = "", error: Optional[str] = None) -> None:
if not isinstance(line, str):
line = repr(line)
super().__init__(error or f"Bad status line {line!r}")
self.args = (line,)
self.line = line
class InvalidURLError(BadHttpMessage):
pass

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"""WebSocket protocol versions 13 and 8."""
import asyncio
import functools
import json
import random
import re
import sys
import zlib
from enum import IntEnum
from struct import Struct
from typing import (
Any,
Callable,
Final,
List,
NamedTuple,
Optional,
Pattern,
Set,
Tuple,
Union,
cast,
)
from .base_protocol import BaseProtocol
from .compression_utils import ZLibCompressor, ZLibDecompressor
from .helpers import NO_EXTENSIONS
from .streams import DataQueue
__all__ = (
"WS_CLOSED_MESSAGE",
"WS_CLOSING_MESSAGE",
"WS_KEY",
"WebSocketReader",
"WebSocketWriter",
"WSMessage",
"WebSocketError",
"WSMsgType",
"WSCloseCode",
)
class WSCloseCode(IntEnum):
OK = 1000
GOING_AWAY = 1001
PROTOCOL_ERROR = 1002
UNSUPPORTED_DATA = 1003
ABNORMAL_CLOSURE = 1006
INVALID_TEXT = 1007
POLICY_VIOLATION = 1008
MESSAGE_TOO_BIG = 1009
MANDATORY_EXTENSION = 1010
INTERNAL_ERROR = 1011
SERVICE_RESTART = 1012
TRY_AGAIN_LATER = 1013
BAD_GATEWAY = 1014
ALLOWED_CLOSE_CODES: Final[Set[int]] = {int(i) for i in WSCloseCode}
# For websockets, keeping latency low is extremely important as implementations
# generally expect to be able to send and receive messages quickly. We use a
# larger chunk size than the default to reduce the number of executor calls
# since the executor is a significant source of latency and overhead when
# the chunks are small. A size of 5KiB was chosen because it is also the
# same value python-zlib-ng choose to use as the threshold to release the GIL.
WEBSOCKET_MAX_SYNC_CHUNK_SIZE = 5 * 1024
class WSMsgType(IntEnum):
# websocket spec types
CONTINUATION = 0x0
TEXT = 0x1
BINARY = 0x2
PING = 0x9
PONG = 0xA
CLOSE = 0x8
# aiohttp specific types
CLOSING = 0x100
CLOSED = 0x101
ERROR = 0x102
text = TEXT
binary = BINARY
ping = PING
pong = PONG
close = CLOSE
closing = CLOSING
closed = CLOSED
error = ERROR
WS_KEY: Final[bytes] = b"258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
UNPACK_LEN2 = Struct("!H").unpack_from
UNPACK_LEN3 = Struct("!Q").unpack_from
UNPACK_CLOSE_CODE = Struct("!H").unpack
PACK_LEN1 = Struct("!BB").pack
PACK_LEN2 = Struct("!BBH").pack
PACK_LEN3 = Struct("!BBQ").pack
PACK_CLOSE_CODE = Struct("!H").pack
MSG_SIZE: Final[int] = 2**14
DEFAULT_LIMIT: Final[int] = 2**16
class WSMessage(NamedTuple):
type: WSMsgType
# To type correctly, this would need some kind of tagged union for each type.
data: Any
extra: Optional[str]
def json(self, *, loads: Callable[[Any], Any] = json.loads) -> Any:
"""Return parsed JSON data.
.. versionadded:: 0.22
"""
return loads(self.data)
WS_CLOSED_MESSAGE = WSMessage(WSMsgType.CLOSED, None, None)
WS_CLOSING_MESSAGE = WSMessage(WSMsgType.CLOSING, None, None)
class WebSocketError(Exception):
"""WebSocket protocol parser error."""
def __init__(self, code: int, message: str) -> None:
self.code = code
super().__init__(code, message)
def __str__(self) -> str:
return cast(str, self.args[1])
class WSHandshakeError(Exception):
"""WebSocket protocol handshake error."""
native_byteorder: Final[str] = sys.byteorder
# Used by _websocket_mask_python
@functools.lru_cache
def _xor_table() -> List[bytes]:
return [bytes(a ^ b for a in range(256)) for b in range(256)]
def _websocket_mask_python(mask: bytes, data: bytearray) -> None:
"""Websocket masking function.
`mask` is a `bytes` object of length 4; `data` is a `bytearray`
object of any length. The contents of `data` are masked with `mask`,
as specified in section 5.3 of RFC 6455.
Note that this function mutates the `data` argument.
This pure-python implementation may be replaced by an optimized
version when available.
"""
assert isinstance(data, bytearray), data
assert len(mask) == 4, mask
if data:
_XOR_TABLE = _xor_table()
a, b, c, d = (_XOR_TABLE[n] for n in mask)
data[::4] = data[::4].translate(a)
data[1::4] = data[1::4].translate(b)
data[2::4] = data[2::4].translate(c)
data[3::4] = data[3::4].translate(d)
if NO_EXTENSIONS: # pragma: no cover
_websocket_mask = _websocket_mask_python
else:
try:
from ._websocket import _websocket_mask_cython # type: ignore[import-not-found]
_websocket_mask = _websocket_mask_cython
except ImportError: # pragma: no cover
_websocket_mask = _websocket_mask_python
_WS_DEFLATE_TRAILING: Final[bytes] = bytes([0x00, 0x00, 0xFF, 0xFF])
_WS_EXT_RE: Final[Pattern[str]] = re.compile(
r"^(?:;\s*(?:"
r"(server_no_context_takeover)|"
r"(client_no_context_takeover)|"
r"(server_max_window_bits(?:=(\d+))?)|"
r"(client_max_window_bits(?:=(\d+))?)))*$"
)
_WS_EXT_RE_SPLIT: Final[Pattern[str]] = re.compile(r"permessage-deflate([^,]+)?")
def ws_ext_parse(extstr: Optional[str], isserver: bool = False) -> Tuple[int, bool]:
if not extstr:
return 0, False
compress = 0
notakeover = False
for ext in _WS_EXT_RE_SPLIT.finditer(extstr):
defext = ext.group(1)
# Return compress = 15 when get `permessage-deflate`
if not defext:
compress = 15
break
match = _WS_EXT_RE.match(defext)
if match:
compress = 15
if isserver:
# Server never fail to detect compress handshake.
# Server does not need to send max wbit to client
if match.group(4):
compress = int(match.group(4))
# Group3 must match if group4 matches
# Compress wbit 8 does not support in zlib
# If compress level not support,
# CONTINUE to next extension
if compress > 15 or compress < 9:
compress = 0
continue
if match.group(1):
notakeover = True
# Ignore regex group 5 & 6 for client_max_window_bits
break
else:
if match.group(6):
compress = int(match.group(6))
# Group5 must match if group6 matches
# Compress wbit 8 does not support in zlib
# If compress level not support,
# FAIL the parse progress
if compress > 15 or compress < 9:
raise WSHandshakeError("Invalid window size")
if match.group(2):
notakeover = True
# Ignore regex group 5 & 6 for client_max_window_bits
break
# Return Fail if client side and not match
elif not isserver:
raise WSHandshakeError("Extension for deflate not supported" + ext.group(1))
return compress, notakeover
def ws_ext_gen(
compress: int = 15, isserver: bool = False, server_notakeover: bool = False
) -> str:
# client_notakeover=False not used for server
# compress wbit 8 does not support in zlib
if compress < 9 or compress > 15:
raise ValueError(
"Compress wbits must between 9 and 15, " "zlib does not support wbits=8"
)
enabledext = ["permessage-deflate"]
if not isserver:
enabledext.append("client_max_window_bits")
if compress < 15:
enabledext.append("server_max_window_bits=" + str(compress))
if server_notakeover:
enabledext.append("server_no_context_takeover")
# if client_notakeover:
# enabledext.append('client_no_context_takeover')
return "; ".join(enabledext)
class WSParserState(IntEnum):
READ_HEADER = 1
READ_PAYLOAD_LENGTH = 2
READ_PAYLOAD_MASK = 3
READ_PAYLOAD = 4
class WebSocketReader:
def __init__(
self, queue: DataQueue[WSMessage], max_msg_size: int, compress: bool = True
) -> None:
self.queue = queue
self._max_msg_size = max_msg_size
self._exc: Optional[BaseException] = None
self._partial = bytearray()
self._state = WSParserState.READ_HEADER
self._opcode: Optional[int] = None
self._frame_fin = False
self._frame_opcode: Optional[int] = None
self._frame_payload = bytearray()
self._tail = b""
self._has_mask = False
self._frame_mask: Optional[bytes] = None
self._payload_length = 0
self._payload_length_flag = 0
self._compressed: Optional[bool] = None
self._decompressobj: Optional[ZLibDecompressor] = None
self._compress = compress
def feed_eof(self) -> None:
self.queue.feed_eof()
def feed_data(self, data: bytes) -> Tuple[bool, bytes]:
if self._exc:
return True, data
try:
return self._feed_data(data)
except Exception as exc:
self._exc = exc
self.queue.set_exception(exc)
return True, b""
def _feed_data(self, data: bytes) -> Tuple[bool, bytes]:
for fin, opcode, payload, compressed in self.parse_frame(data):
if compressed and not self._decompressobj:
self._decompressobj = ZLibDecompressor(suppress_deflate_header=True)
if opcode == WSMsgType.CLOSE:
if len(payload) >= 2:
close_code = UNPACK_CLOSE_CODE(payload[:2])[0]
if close_code < 3000 and close_code not in ALLOWED_CLOSE_CODES:
raise WebSocketError(
WSCloseCode.PROTOCOL_ERROR,
f"Invalid close code: {close_code}",
)
try:
close_message = payload[2:].decode("utf-8")
except UnicodeDecodeError as exc:
raise WebSocketError(
WSCloseCode.INVALID_TEXT, "Invalid UTF-8 text message"
) from exc
msg = WSMessage(WSMsgType.CLOSE, close_code, close_message)
elif payload:
raise WebSocketError(
WSCloseCode.PROTOCOL_ERROR,
f"Invalid close frame: {fin} {opcode} {payload!r}",
)
else:
msg = WSMessage(WSMsgType.CLOSE, 0, "")
self.queue.feed_data(msg, 0)
elif opcode == WSMsgType.PING:
self.queue.feed_data(
WSMessage(WSMsgType.PING, payload, ""), len(payload)
)
elif opcode == WSMsgType.PONG:
self.queue.feed_data(
WSMessage(WSMsgType.PONG, payload, ""), len(payload)
)
elif (
opcode not in (WSMsgType.TEXT, WSMsgType.BINARY)
and self._opcode is None
):
raise WebSocketError(
WSCloseCode.PROTOCOL_ERROR, f"Unexpected opcode={opcode!r}"
)
else:
# load text/binary
if not fin:
# got partial frame payload
if opcode != WSMsgType.CONTINUATION:
self._opcode = opcode
self._partial.extend(payload)
if self._max_msg_size and len(self._partial) >= self._max_msg_size:
raise WebSocketError(
WSCloseCode.MESSAGE_TOO_BIG,
"Message size {} exceeds limit {}".format(
len(self._partial), self._max_msg_size
),
)
else:
# previous frame was non finished
# we should get continuation opcode
if self._partial:
if opcode != WSMsgType.CONTINUATION:
raise WebSocketError(
WSCloseCode.PROTOCOL_ERROR,
"The opcode in non-fin frame is expected "
"to be zero, got {!r}".format(opcode),
)
if opcode == WSMsgType.CONTINUATION:
assert self._opcode is not None
opcode = self._opcode
self._opcode = None
self._partial.extend(payload)
if self._max_msg_size and len(self._partial) >= self._max_msg_size:
raise WebSocketError(
WSCloseCode.MESSAGE_TOO_BIG,
"Message size {} exceeds limit {}".format(
len(self._partial), self._max_msg_size
),
)
# Decompress process must to be done after all packets
# received.
if compressed:
assert self._decompressobj is not None
self._partial.extend(_WS_DEFLATE_TRAILING)
payload_merged = self._decompressobj.decompress_sync(
self._partial, self._max_msg_size
)
if self._decompressobj.unconsumed_tail:
left = len(self._decompressobj.unconsumed_tail)
raise WebSocketError(
WSCloseCode.MESSAGE_TOO_BIG,
"Decompressed message size {} exceeds limit {}".format(
self._max_msg_size + left, self._max_msg_size
),
)
else:
payload_merged = bytes(self._partial)
self._partial.clear()
if opcode == WSMsgType.TEXT:
try:
text = payload_merged.decode("utf-8")
self.queue.feed_data(
WSMessage(WSMsgType.TEXT, text, ""), len(text)
)
except UnicodeDecodeError as exc:
raise WebSocketError(
WSCloseCode.INVALID_TEXT, "Invalid UTF-8 text message"
) from exc
else:
self.queue.feed_data(
WSMessage(WSMsgType.BINARY, payload_merged, ""),
len(payload_merged),
)
return False, b""
def parse_frame(
self, buf: bytes
) -> List[Tuple[bool, Optional[int], bytearray, Optional[bool]]]:
"""Return the next frame from the socket."""
frames = []
if self._tail:
buf, self._tail = self._tail + buf, b""
start_pos = 0
buf_length = len(buf)
while True:
# read header
if self._state == WSParserState.READ_HEADER:
if buf_length - start_pos >= 2:
data = buf[start_pos : start_pos + 2]
start_pos += 2
first_byte, second_byte = data
fin = (first_byte >> 7) & 1
rsv1 = (first_byte >> 6) & 1
rsv2 = (first_byte >> 5) & 1
rsv3 = (first_byte >> 4) & 1
opcode = first_byte & 0xF
# frame-fin = %x0 ; more frames of this message follow
# / %x1 ; final frame of this message
# frame-rsv1 = %x0 ;
# 1 bit, MUST be 0 unless negotiated otherwise
# frame-rsv2 = %x0 ;
# 1 bit, MUST be 0 unless negotiated otherwise
# frame-rsv3 = %x0 ;
# 1 bit, MUST be 0 unless negotiated otherwise
#
# Remove rsv1 from this test for deflate development
if rsv2 or rsv3 or (rsv1 and not self._compress):
raise WebSocketError(
WSCloseCode.PROTOCOL_ERROR,
"Received frame with non-zero reserved bits",
)
if opcode > 0x7 and fin == 0:
raise WebSocketError(
WSCloseCode.PROTOCOL_ERROR,
"Received fragmented control frame",
)
has_mask = (second_byte >> 7) & 1
length = second_byte & 0x7F
# Control frames MUST have a payload
# length of 125 bytes or less
if opcode > 0x7 and length > 125:
raise WebSocketError(
WSCloseCode.PROTOCOL_ERROR,
"Control frame payload cannot be " "larger than 125 bytes",
)
# Set compress status if last package is FIN
# OR set compress status if this is first fragment
# Raise error if not first fragment with rsv1 = 0x1
if self._frame_fin or self._compressed is None:
self._compressed = True if rsv1 else False
elif rsv1:
raise WebSocketError(
WSCloseCode.PROTOCOL_ERROR,
"Received frame with non-zero reserved bits",
)
self._frame_fin = bool(fin)
self._frame_opcode = opcode
self._has_mask = bool(has_mask)
self._payload_length_flag = length
self._state = WSParserState.READ_PAYLOAD_LENGTH
else:
break
# read payload length
if self._state == WSParserState.READ_PAYLOAD_LENGTH:
length = self._payload_length_flag
if length == 126:
if buf_length - start_pos >= 2:
data = buf[start_pos : start_pos + 2]
start_pos += 2
length = UNPACK_LEN2(data)[0]
self._payload_length = length
self._state = (
WSParserState.READ_PAYLOAD_MASK
if self._has_mask
else WSParserState.READ_PAYLOAD
)
else:
break
elif length > 126:
if buf_length - start_pos >= 8:
data = buf[start_pos : start_pos + 8]
start_pos += 8
length = UNPACK_LEN3(data)[0]
self._payload_length = length
self._state = (
WSParserState.READ_PAYLOAD_MASK
if self._has_mask
else WSParserState.READ_PAYLOAD
)
else:
break
else:
self._payload_length = length
self._state = (
WSParserState.READ_PAYLOAD_MASK
if self._has_mask
else WSParserState.READ_PAYLOAD
)
# read payload mask
if self._state == WSParserState.READ_PAYLOAD_MASK:
if buf_length - start_pos >= 4:
self._frame_mask = buf[start_pos : start_pos + 4]
start_pos += 4
self._state = WSParserState.READ_PAYLOAD
else:
break
if self._state == WSParserState.READ_PAYLOAD:
length = self._payload_length
payload = self._frame_payload
chunk_len = buf_length - start_pos
if length >= chunk_len:
self._payload_length = length - chunk_len
payload.extend(buf[start_pos:])
start_pos = buf_length
else:
self._payload_length = 0
payload.extend(buf[start_pos : start_pos + length])
start_pos = start_pos + length
if self._payload_length == 0:
if self._has_mask:
assert self._frame_mask is not None
_websocket_mask(self._frame_mask, payload)
frames.append(
(self._frame_fin, self._frame_opcode, payload, self._compressed)
)
self._frame_payload = bytearray()
self._state = WSParserState.READ_HEADER
else:
break
self._tail = buf[start_pos:]
return frames
class WebSocketWriter:
def __init__(
self,
protocol: BaseProtocol,
transport: asyncio.Transport,
*,
use_mask: bool = False,
limit: int = DEFAULT_LIMIT,
random: Any = random.Random(),
compress: int = 0,
notakeover: bool = False,
) -> None:
self.protocol = protocol
self.transport = transport
self.use_mask = use_mask
self.randrange = random.randrange
self.compress = compress
self.notakeover = notakeover
self._closing = False
self._limit = limit
self._output_size = 0
self._compressobj: Any = None # actually compressobj
async def _send_frame(
self, message: bytes, opcode: int, compress: Optional[int] = None
) -> None:
"""Send a frame over the websocket with message as its payload."""
if self._closing and not (opcode & WSMsgType.CLOSE):
raise ConnectionResetError("Cannot write to closing transport")
rsv = 0
# Only compress larger packets (disabled)
# Does small packet needs to be compressed?
# if self.compress and opcode < 8 and len(message) > 124:
if (compress or self.compress) and opcode < 8:
if compress:
# Do not set self._compress if compressing is for this frame
compressobj = ZLibCompressor(
level=zlib.Z_BEST_SPEED,
wbits=-compress,
max_sync_chunk_size=WEBSOCKET_MAX_SYNC_CHUNK_SIZE,
)
else: # self.compress
if not self._compressobj:
self._compressobj = ZLibCompressor(
level=zlib.Z_BEST_SPEED,
wbits=-self.compress,
max_sync_chunk_size=WEBSOCKET_MAX_SYNC_CHUNK_SIZE,
)
compressobj = self._compressobj
message = await compressobj.compress(message)
message += compressobj.flush(
zlib.Z_FULL_FLUSH if self.notakeover else zlib.Z_SYNC_FLUSH
)
if message.endswith(_WS_DEFLATE_TRAILING):
message = message[:-4]
rsv = rsv | 0x40
msg_length = len(message)
use_mask = self.use_mask
if use_mask:
mask_bit = 0x80
else:
mask_bit = 0
if msg_length < 126:
header = PACK_LEN1(0x80 | rsv | opcode, msg_length | mask_bit)
elif msg_length < (1 << 16):
header = PACK_LEN2(0x80 | rsv | opcode, 126 | mask_bit, msg_length)
else:
header = PACK_LEN3(0x80 | rsv | opcode, 127 | mask_bit, msg_length)
if use_mask:
mask = self.randrange(0, 0xFFFFFFFF)
mask = mask.to_bytes(4, "big")
message = bytearray(message)
_websocket_mask(mask, message)
self._write(header + mask + message)
self._output_size += len(header) + len(mask) + len(message)
else:
if len(message) > MSG_SIZE:
self._write(header)
self._write(message)
else:
self._write(header + message)
self._output_size += len(header) + len(message)
if self._output_size > self._limit:
self._output_size = 0
await self.protocol._drain_helper()
def _write(self, data: bytes) -> None:
if self.transport is None or self.transport.is_closing():
raise ConnectionResetError("Cannot write to closing transport")
self.transport.write(data)
async def pong(self, message: Union[bytes, str] = b"") -> None:
"""Send pong message."""
if isinstance(message, str):
message = message.encode("utf-8")
await self._send_frame(message, WSMsgType.PONG)
async def ping(self, message: Union[bytes, str] = b"") -> None:
"""Send ping message."""
if isinstance(message, str):
message = message.encode("utf-8")
await self._send_frame(message, WSMsgType.PING)
async def send(
self,
message: Union[str, bytes],
binary: bool = False,
compress: Optional[int] = None,
) -> None:
"""Send a frame over the websocket with message as its payload."""
if isinstance(message, str):
message = message.encode("utf-8")
if binary:
await self._send_frame(message, WSMsgType.BINARY, compress)
else:
await self._send_frame(message, WSMsgType.TEXT, compress)
async def close(self, code: int = 1000, message: Union[bytes, str] = b"") -> None:
"""Close the websocket, sending the specified code and message."""
if isinstance(message, str):
message = message.encode("utf-8")
try:
await self._send_frame(
PACK_CLOSE_CODE(code) + message, opcode=WSMsgType.CLOSE
)
finally:
self._closing = True

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.venv/Lib/site-packages/aiohttp/http_writer.py Normal file
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@ -0,0 +1,198 @@
"""Http related parsers and protocol."""
import asyncio
import zlib
from typing import Any, Awaitable, Callable, NamedTuple, Optional, Union # noqa
from multidict import CIMultiDict
from .abc import AbstractStreamWriter
from .base_protocol import BaseProtocol
from .compression_utils import ZLibCompressor
from .helpers import NO_EXTENSIONS
__all__ = ("StreamWriter", "HttpVersion", "HttpVersion10", "HttpVersion11")
class HttpVersion(NamedTuple):
major: int
minor: int
HttpVersion10 = HttpVersion(1, 0)
HttpVersion11 = HttpVersion(1, 1)
_T_OnChunkSent = Optional[Callable[[bytes], Awaitable[None]]]
_T_OnHeadersSent = Optional[Callable[["CIMultiDict[str]"], Awaitable[None]]]
class StreamWriter(AbstractStreamWriter):
def __init__(
self,
protocol: BaseProtocol,
loop: asyncio.AbstractEventLoop,
on_chunk_sent: _T_OnChunkSent = None,
on_headers_sent: _T_OnHeadersSent = None,
) -> None:
self._protocol = protocol
self.loop = loop
self.length = None
self.chunked = False
self.buffer_size = 0
self.output_size = 0
self._eof = False
self._compress: Optional[ZLibCompressor] = None
self._drain_waiter = None
self._on_chunk_sent: _T_OnChunkSent = on_chunk_sent
self._on_headers_sent: _T_OnHeadersSent = on_headers_sent
@property
def transport(self) -> Optional[asyncio.Transport]:
return self._protocol.transport
@property
def protocol(self) -> BaseProtocol:
return self._protocol
def enable_chunking(self) -> None:
self.chunked = True
def enable_compression(
self, encoding: str = "deflate", strategy: int = zlib.Z_DEFAULT_STRATEGY
) -> None:
self._compress = ZLibCompressor(encoding=encoding, strategy=strategy)
def _write(self, chunk: bytes) -> None:
size = len(chunk)
self.buffer_size += size
self.output_size += size
transport = self.transport
if not self._protocol.connected or transport is None or transport.is_closing():
raise ConnectionResetError("Cannot write to closing transport")
transport.write(chunk)
async def write(
self, chunk: bytes, *, drain: bool = True, LIMIT: int = 0x10000
) -> None:
"""Writes chunk of data to a stream.
write_eof() indicates end of stream.
writer can't be used after write_eof() method being called.
write() return drain future.
"""
if self._on_chunk_sent is not None:
await self._on_chunk_sent(chunk)
if isinstance(chunk, memoryview):
if chunk.nbytes != len(chunk):
# just reshape it
chunk = chunk.cast("c")
if self._compress is not None:
chunk = await self._compress.compress(chunk)
if not chunk:
return
if self.length is not None:
chunk_len = len(chunk)
if self.length >= chunk_len:
self.length = self.length - chunk_len
else:
chunk = chunk[: self.length]
self.length = 0
if not chunk:
return
if chunk:
if self.chunked:
chunk_len_pre = ("%x\r\n" % len(chunk)).encode("ascii")
chunk = chunk_len_pre + chunk + b"\r\n"
self._write(chunk)
if self.buffer_size > LIMIT and drain:
self.buffer_size = 0
await self.drain()
async def write_headers(
self, status_line: str, headers: "CIMultiDict[str]"
) -> None:
"""Write request/response status and headers."""
if self._on_headers_sent is not None:
await self._on_headers_sent(headers)
# status + headers
buf = _serialize_headers(status_line, headers)
self._write(buf)
async def write_eof(self, chunk: bytes = b"") -> None:
if self._eof:
return
if chunk and self._on_chunk_sent is not None:
await self._on_chunk_sent(chunk)
if self._compress:
if chunk:
chunk = await self._compress.compress(chunk)
chunk += self._compress.flush()
if chunk and self.chunked:
chunk_len = ("%x\r\n" % len(chunk)).encode("ascii")
chunk = chunk_len + chunk + b"\r\n0\r\n\r\n"
else:
if self.chunked:
if chunk:
chunk_len = ("%x\r\n" % len(chunk)).encode("ascii")
chunk = chunk_len + chunk + b"\r\n0\r\n\r\n"
else:
chunk = b"0\r\n\r\n"
if chunk:
self._write(chunk)
await self.drain()
self._eof = True
async def drain(self) -> None:
"""Flush the write buffer.
The intended use is to write
await w.write(data)
await w.drain()
"""
if self._protocol.transport is not None:
await self._protocol._drain_helper()
def _safe_header(string: str) -> str:
if "\r" in string or "\n" in string:
raise ValueError(
"Newline or carriage return detected in headers. "
"Potential header injection attack."
)
return string
def _py_serialize_headers(status_line: str, headers: "CIMultiDict[str]") -> bytes:
headers_gen = (_safe_header(k) + ": " + _safe_header(v) for k, v in headers.items())
line = status_line + "\r\n" + "\r\n".join(headers_gen) + "\r\n\r\n"
return line.encode("utf-8")
_serialize_headers = _py_serialize_headers
try:
import aiohttp._http_writer as _http_writer # type: ignore[import-not-found]
_c_serialize_headers = _http_writer._serialize_headers
if not NO_EXTENSIONS:
_serialize_headers = _c_serialize_headers
except ImportError:
pass

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import asyncio
import collections
from typing import Any, Deque, Optional
class EventResultOrError:
"""Event asyncio lock helper class.
Wraps the Event asyncio lock allowing either to awake the
locked Tasks without any error or raising an exception.
thanks to @vorpalsmith for the simple design.
"""
def __init__(self, loop: asyncio.AbstractEventLoop) -> None:
self._loop = loop
self._exc: Optional[BaseException] = None
self._event = asyncio.Event()
self._waiters: Deque[asyncio.Future[Any]] = collections.deque()
def set(self, exc: Optional[BaseException] = None) -> None:
self._exc = exc
self._event.set()
async def wait(self) -> Any:
waiter = self._loop.create_task(self._event.wait())
self._waiters.append(waiter)
try:
val = await waiter
finally:
self._waiters.remove(waiter)
if self._exc is not None:
raise self._exc
return val
def cancel(self) -> None:
"""Cancel all waiters"""
for waiter in self._waiters:
waiter.cancel()

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.venv/Lib/site-packages/aiohttp/log.py Normal file
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import logging
access_logger = logging.getLogger("aiohttp.access")
client_logger = logging.getLogger("aiohttp.client")
internal_logger = logging.getLogger("aiohttp.internal")
server_logger = logging.getLogger("aiohttp.server")
web_logger = logging.getLogger("aiohttp.web")
ws_logger = logging.getLogger("aiohttp.websocket")

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.venv/Lib/site-packages/aiohttp/multipart.py Normal file
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import base64
import binascii
import json
import re
import uuid
import warnings
import zlib
from collections import deque
from types import TracebackType
from typing import (
TYPE_CHECKING,
Any,
AsyncIterator,
Deque,
Dict,
Iterator,
List,
Mapping,
Optional,
Sequence,
Tuple,
Type,
Union,
cast,
)
from urllib.parse import parse_qsl, unquote, urlencode
from multidict import CIMultiDict, CIMultiDictProxy, MultiMapping
from .compression_utils import ZLibCompressor, ZLibDecompressor
from .hdrs import (
CONTENT_DISPOSITION,
CONTENT_ENCODING,
CONTENT_LENGTH,
CONTENT_TRANSFER_ENCODING,
CONTENT_TYPE,
)
from .helpers import CHAR, TOKEN, parse_mimetype, reify
from .http import HeadersParser
from .payload import (
JsonPayload,
LookupError,
Order,
Payload,
StringPayload,
get_payload,
payload_type,
)
from .streams import StreamReader
__all__ = (
"MultipartReader",
"MultipartWriter",
"BodyPartReader",
"BadContentDispositionHeader",
"BadContentDispositionParam",
"parse_content_disposition",
"content_disposition_filename",
)
if TYPE_CHECKING: # pragma: no cover
from .client_reqrep import ClientResponse
class BadContentDispositionHeader(RuntimeWarning):
pass
class BadContentDispositionParam(RuntimeWarning):
pass
def parse_content_disposition(
header: Optional[str],
) -> Tuple[Optional[str], Dict[str, str]]:
def is_token(string: str) -> bool:
return bool(string) and TOKEN >= set(string)
def is_quoted(string: str) -> bool:
return string[0] == string[-1] == '"'
def is_rfc5987(string: str) -> bool:
return is_token(string) and string.count("'") == 2
def is_extended_param(string: str) -> bool:
return string.endswith("*")
def is_continuous_param(string: str) -> bool:
pos = string.find("*") + 1
if not pos:
return False
substring = string[pos:-1] if string.endswith("*") else string[pos:]
return substring.isdigit()
def unescape(text: str, *, chars: str = "".join(map(re.escape, CHAR))) -> str:
return re.sub(f"\\\\([{chars}])", "\\1", text)
if not header:
return None, {}
disptype, *parts = header.split(";")
if not is_token(disptype):
warnings.warn(BadContentDispositionHeader(header))
return None, {}
params: Dict[str, str] = {}
while parts:
item = parts.pop(0)
if "=" not in item:
warnings.warn(BadContentDispositionHeader(header))
return None, {}
key, value = item.split("=", 1)
key = key.lower().strip()
value = value.lstrip()
if key in params:
warnings.warn(BadContentDispositionHeader(header))
return None, {}
if not is_token(key):
warnings.warn(BadContentDispositionParam(item))
continue
elif is_continuous_param(key):
if is_quoted(value):
value = unescape(value[1:-1])
elif not is_token(value):
warnings.warn(BadContentDispositionParam(item))
continue
elif is_extended_param(key):
if is_rfc5987(value):
encoding, _, value = value.split("'", 2)
encoding = encoding or "utf-8"
else:
warnings.warn(BadContentDispositionParam(item))
continue
try:
value = unquote(value, encoding, "strict")
except UnicodeDecodeError: # pragma: nocover
warnings.warn(BadContentDispositionParam(item))
continue
else:
failed = True
if is_quoted(value):
failed = False
value = unescape(value[1:-1].lstrip("\\/"))
elif is_token(value):
failed = False
elif parts:
# maybe just ; in filename, in any case this is just
# one case fix, for proper fix we need to redesign parser
_value = f"{value};{parts[0]}"
if is_quoted(_value):
parts.pop(0)
value = unescape(_value[1:-1].lstrip("\\/"))
failed = False
if failed:
warnings.warn(BadContentDispositionHeader(header))
return None, {}
params[key] = value
return disptype.lower(), params
def content_disposition_filename(
params: Mapping[str, str], name: str = "filename"
) -> Optional[str]:
name_suf = "%s*" % name
if not params:
return None
elif name_suf in params:
return params[name_suf]
elif name in params:
return params[name]
else:
parts = []
fnparams = sorted(
(key, value) for key, value in params.items() if key.startswith(name_suf)
)
for num, (key, value) in enumerate(fnparams):
_, tail = key.split("*", 1)
if tail.endswith("*"):
tail = tail[:-1]
if tail == str(num):
parts.append(value)
else:
break
if not parts:
return None
value = "".join(parts)
if "'" in value:
encoding, _, value = value.split("'", 2)
encoding = encoding or "utf-8"
return unquote(value, encoding, "strict")
return value
class MultipartResponseWrapper:
"""Wrapper around the MultipartReader.
It takes care about
underlying connection and close it when it needs in.
"""
def __init__(
self,
resp: "ClientResponse",
stream: "MultipartReader",
) -> None:
self.resp = resp
self.stream = stream
def __aiter__(self) -> "MultipartResponseWrapper":
return self
async def __anext__(
self,
) -> Union["MultipartReader", "BodyPartReader"]:
part = await self.next()
if part is None:
raise StopAsyncIteration
return part
def at_eof(self) -> bool:
"""Returns True when all response data had been read."""
return self.resp.content.at_eof()
async def next(
self,
) -> Optional[Union["MultipartReader", "BodyPartReader"]]:
"""Emits next multipart reader object."""
item = await self.stream.next()
if self.stream.at_eof():
await self.release()
return item
async def release(self) -> None:
"""Release the connection gracefully.
All remaining content is read to the void.
"""
await self.resp.release()
class BodyPartReader:
"""Multipart reader for single body part."""
chunk_size = 8192
def __init__(
self, boundary: bytes, headers: "CIMultiDictProxy[str]", content: StreamReader
) -> None:
self.headers = headers
self._boundary = boundary
self._content = content
self._at_eof = False
length = self.headers.get(CONTENT_LENGTH, None)
self._length = int(length) if length is not None else None
self._read_bytes = 0
self._unread: Deque[bytes] = deque()
self._prev_chunk: Optional[bytes] = None
self._content_eof = 0
self._cache: Dict[str, Any] = {}
def __aiter__(self) -> AsyncIterator["BodyPartReader"]:
return self # type: ignore[return-value]
async def __anext__(self) -> bytes:
part = await self.next()
if part is None:
raise StopAsyncIteration
return part
async def next(self) -> Optional[bytes]:
item = await self.read()
if not item:
return None
return item
async def read(self, *, decode: bool = False) -> bytes:
"""Reads body part data.
decode: Decodes data following by encoding
method from Content-Encoding header. If it missed
data remains untouched
"""
if self._at_eof:
return b""
data = bytearray()
while not self._at_eof:
data.extend(await self.read_chunk(self.chunk_size))
if decode:
return self.decode(data)
return data
async def read_chunk(self, size: int = chunk_size) -> bytes:
"""Reads body part content chunk of the specified size.
size: chunk size
"""
if self._at_eof:
return b""
if self._length:
chunk = await self._read_chunk_from_length(size)
else:
chunk = await self._read_chunk_from_stream(size)
self._read_bytes += len(chunk)
if self._read_bytes == self._length:
self._at_eof = True
if self._at_eof:
clrf = await self._content.readline()
assert (
b"\r\n" == clrf
), "reader did not read all the data or it is malformed"
return chunk
async def _read_chunk_from_length(self, size: int) -> bytes:
# Reads body part content chunk of the specified size.
# The body part must has Content-Length header with proper value.
assert self._length is not None, "Content-Length required for chunked read"
chunk_size = min(size, self._length - self._read_bytes)
chunk = await self._content.read(chunk_size)
return chunk
async def _read_chunk_from_stream(self, size: int) -> bytes:
# Reads content chunk of body part with unknown length.
# The Content-Length header for body part is not necessary.
assert (
size >= len(self._boundary) + 2
), "Chunk size must be greater or equal than boundary length + 2"
first_chunk = self._prev_chunk is None
if first_chunk:
self._prev_chunk = await self._content.read(size)
chunk = await self._content.read(size)
self._content_eof += int(self._content.at_eof())
assert self._content_eof < 3, "Reading after EOF"
assert self._prev_chunk is not None
window = self._prev_chunk + chunk
sub = b"\r\n" + self._boundary
if first_chunk:
idx = window.find(sub)
else:
idx = window.find(sub, max(0, len(self._prev_chunk) - len(sub)))
if idx >= 0:
# pushing boundary back to content
with warnings.catch_warnings():
warnings.filterwarnings("ignore", category=DeprecationWarning)
self._content.unread_data(window[idx:])
if size > idx:
self._prev_chunk = self._prev_chunk[:idx]
chunk = window[len(self._prev_chunk) : idx]
if not chunk:
self._at_eof = True
result = self._prev_chunk
self._prev_chunk = chunk
return result
async def readline(self) -> bytes:
"""Reads body part by line by line."""
if self._at_eof:
return b""
if self._unread:
line = self._unread.popleft()
else:
line = await self._content.readline()
if line.startswith(self._boundary):
# the very last boundary may not come with \r\n,
# so set single rules for everyone
sline = line.rstrip(b"\r\n")
boundary = self._boundary
last_boundary = self._boundary + b"--"
# ensure that we read exactly the boundary, not something alike
if sline == boundary or sline == last_boundary:
self._at_eof = True
self._unread.append(line)
return b""
else:
next_line = await self._content.readline()
if next_line.startswith(self._boundary):
line = line[:-2] # strip CRLF but only once
self._unread.append(next_line)
return line
async def release(self) -> None:
"""Like read(), but reads all the data to the void."""
if self._at_eof:
return
while not self._at_eof:
await self.read_chunk(self.chunk_size)
async def text(self, *, encoding: Optional[str] = None) -> str:
"""Like read(), but assumes that body part contains text data."""
data = await self.read(decode=True)
# see https://www.w3.org/TR/html5/forms.html#multipart/form-data-encoding-algorithm
# and https://dvcs.w3.org/hg/xhr/raw-file/tip/Overview.html#dom-xmlhttprequest-send
encoding = encoding or self.get_charset(default="utf-8")
return data.decode(encoding)
async def json(self, *, encoding: Optional[str] = None) -> Optional[Dict[str, Any]]:
"""Like read(), but assumes that body parts contains JSON data."""
data = await self.read(decode=True)
if not data:
return None
encoding = encoding or self.get_charset(default="utf-8")
return cast(Dict[str, Any], json.loads(data.decode(encoding)))
async def form(self, *, encoding: Optional[str] = None) -> List[Tuple[str, str]]:
"""Like read(), but assumes that body parts contain form urlencoded data."""
data = await self.read(decode=True)
if not data:
return []
if encoding is not None:
real_encoding = encoding
else:
real_encoding = self.get_charset(default="utf-8")
try:
decoded_data = data.rstrip().decode(real_encoding)
except UnicodeDecodeError:
raise ValueError("data cannot be decoded with %s encoding" % real_encoding)
return parse_qsl(
decoded_data,
keep_blank_values=True,
encoding=real_encoding,
)
def at_eof(self) -> bool:
"""Returns True if the boundary was reached or False otherwise."""
return self._at_eof
def decode(self, data: bytes) -> bytes:
"""Decodes data.
Decoding is done according the specified Content-Encoding
or Content-Transfer-Encoding headers value.
"""
if CONTENT_TRANSFER_ENCODING in self.headers:
data = self._decode_content_transfer(data)
if CONTENT_ENCODING in self.headers:
return self._decode_content(data)
return data
def _decode_content(self, data: bytes) -> bytes:
encoding = self.headers.get(CONTENT_ENCODING, "").lower()
if encoding == "identity":
return data
if encoding in {"deflate", "gzip"}:
return ZLibDecompressor(
encoding=encoding,
suppress_deflate_header=True,
).decompress_sync(data)
raise RuntimeError(f"unknown content encoding: {encoding}")
def _decode_content_transfer(self, data: bytes) -> bytes:
encoding = self.headers.get(CONTENT_TRANSFER_ENCODING, "").lower()
if encoding == "base64":
return base64.b64decode(data)
elif encoding == "quoted-printable":
return binascii.a2b_qp(data)
elif encoding in ("binary", "8bit", "7bit"):
return data
else:
raise RuntimeError(
"unknown content transfer encoding: {}" "".format(encoding)
)
def get_charset(self, default: str) -> str:
"""Returns charset parameter from Content-Type header or default."""
ctype = self.headers.get(CONTENT_TYPE, "")
mimetype = parse_mimetype(ctype)
return mimetype.parameters.get("charset", default)
@reify
def name(self) -> Optional[str]:
"""Returns name specified in Content-Disposition header.
If the header is missing or malformed, returns None.
"""
_, params = parse_content_disposition(self.headers.get(CONTENT_DISPOSITION))
return content_disposition_filename(params, "name")
@reify
def filename(self) -> Optional[str]:
"""Returns filename specified in Content-Disposition header.
Returns None if the header is missing or malformed.
"""
_, params = parse_content_disposition(self.headers.get(CONTENT_DISPOSITION))
return content_disposition_filename(params, "filename")
@payload_type(BodyPartReader, order=Order.try_first)
class BodyPartReaderPayload(Payload):
def __init__(self, value: BodyPartReader, *args: Any, **kwargs: Any) -> None:
super().__init__(value, *args, **kwargs)
params: Dict[str, str] = {}
if value.name is not None:
params["name"] = value.name
if value.filename is not None:
params["filename"] = value.filename
if params:
self.set_content_disposition("attachment", True, **params)
async def write(self, writer: Any) -> None:
field = self._value
chunk = await field.read_chunk(size=2**16)
while chunk:
await writer.write(field.decode(chunk))
chunk = await field.read_chunk(size=2**16)
class MultipartReader:
"""Multipart body reader."""
#: Response wrapper, used when multipart readers constructs from response.
response_wrapper_cls = MultipartResponseWrapper
#: Multipart reader class, used to handle multipart/* body parts.
#: None points to type(self)
multipart_reader_cls = None
#: Body part reader class for non multipart/* content types.
part_reader_cls = BodyPartReader
def __init__(self, headers: Mapping[str, str], content: StreamReader) -> None:
self.headers = headers
self._boundary = ("--" + self._get_boundary()).encode()
self._content = content
self._last_part: Optional[Union["MultipartReader", BodyPartReader]] = None
self._at_eof = False
self._at_bof = True
self._unread: List[bytes] = []
def __aiter__(
self,
) -> AsyncIterator["BodyPartReader"]:
return self # type: ignore[return-value]
async def __anext__(
self,
) -> Optional[Union["MultipartReader", BodyPartReader]]:
part = await self.next()
if part is None:
raise StopAsyncIteration
return part
@classmethod
def from_response(
cls,
response: "ClientResponse",
) -> MultipartResponseWrapper:
"""Constructs reader instance from HTTP response.
:param response: :class:`~aiohttp.client.ClientResponse` instance
"""
obj = cls.response_wrapper_cls(
response, cls(response.headers, response.content)
)
return obj
def at_eof(self) -> bool:
"""Returns True if the final boundary was reached, false otherwise."""
return self._at_eof
async def next(
self,
) -> Optional[Union["MultipartReader", BodyPartReader]]:
"""Emits the next multipart body part."""
# So, if we're at BOF, we need to skip till the boundary.
if self._at_eof:
return None
await self._maybe_release_last_part()
if self._at_bof:
await self._read_until_first_boundary()
self._at_bof = False
else:
await self._read_boundary()
if self._at_eof: # we just read the last boundary, nothing to do there
return None
self._last_part = await self.fetch_next_part()
return self._last_part
async def release(self) -> None:
"""Reads all the body parts to the void till the final boundary."""
while not self._at_eof:
item = await self.next()
if item is None:
break
await item.release()
async def fetch_next_part(
self,
) -> Union["MultipartReader", BodyPartReader]:
"""Returns the next body part reader."""
headers = await self._read_headers()
return self._get_part_reader(headers)
def _get_part_reader(
self,
headers: "CIMultiDictProxy[str]",
) -> Union["MultipartReader", BodyPartReader]:
"""Dispatches the response by the `Content-Type` header.
Returns a suitable reader instance.
:param dict headers: Response headers
"""
ctype = headers.get(CONTENT_TYPE, "")
mimetype = parse_mimetype(ctype)
if mimetype.type == "multipart":
if self.multipart_reader_cls is None:
return type(self)(headers, self._content)
return self.multipart_reader_cls(headers, self._content)
else:
return self.part_reader_cls(self._boundary, headers, self._content)
def _get_boundary(self) -> str:
mimetype = parse_mimetype(self.headers[CONTENT_TYPE])
assert mimetype.type == "multipart", "multipart/* content type expected"
if "boundary" not in mimetype.parameters:
raise ValueError(
"boundary missed for Content-Type: %s" % self.headers[CONTENT_TYPE]
)
boundary = mimetype.parameters["boundary"]
if len(boundary) > 70:
raise ValueError("boundary %r is too long (70 chars max)" % boundary)
return boundary
async def _readline(self) -> bytes:
if self._unread:
return self._unread.pop()
return await self._content.readline()
async def _read_until_first_boundary(self) -> None:
while True:
chunk = await self._readline()
if chunk == b"":
raise ValueError(
"Could not find starting boundary %r" % (self._boundary)
)
chunk = chunk.rstrip()
if chunk == self._boundary:
return
elif chunk == self._boundary + b"--":
self._at_eof = True
return
async def _read_boundary(self) -> None:
chunk = (await self._readline()).rstrip()
if chunk == self._boundary:
pass
elif chunk == self._boundary + b"--":
self._at_eof = True
epilogue = await self._readline()
next_line = await self._readline()
# the epilogue is expected and then either the end of input or the
# parent multipart boundary, if the parent boundary is found then
# it should be marked as unread and handed to the parent for
# processing
if next_line[:2] == b"--":
self._unread.append(next_line)
# otherwise the request is likely missing an epilogue and both
# lines should be passed to the parent for processing
# (this handles the old behavior gracefully)
else:
self._unread.extend([next_line, epilogue])
else:
raise ValueError(f"Invalid boundary {chunk!r}, expected {self._boundary!r}")
async def _read_headers(self) -> "CIMultiDictProxy[str]":
lines = [b""]
while True:
chunk = await self._content.readline()
chunk = chunk.strip()
lines.append(chunk)
if not chunk:
break
parser = HeadersParser()
headers, raw_headers = parser.parse_headers(lines)
return headers
async def _maybe_release_last_part(self) -> None:
"""Ensures that the last read body part is read completely."""
if self._last_part is not None:
if not self._last_part.at_eof():
await self._last_part.release()
self._unread.extend(self._last_part._unread)
self._last_part = None
_Part = Tuple[Payload, str, str]
class MultipartWriter(Payload):
"""Multipart body writer."""
def __init__(self, subtype: str = "mixed", boundary: Optional[str] = None) -> None:
boundary = boundary if boundary is not None else uuid.uuid4().hex
# The underlying Payload API demands a str (utf-8), not bytes,
# so we need to ensure we don't lose anything during conversion.
# As a result, require the boundary to be ASCII only.
# In both situations.
try:
self._boundary = boundary.encode("ascii")
except UnicodeEncodeError:
raise ValueError("boundary should contain ASCII only chars") from None
ctype = f"multipart/{subtype}; boundary={self._boundary_value}"
super().__init__(None, content_type=ctype)
self._parts: List[_Part] = []
def __enter__(self) -> "MultipartWriter":
return self
def __exit__(
self,
exc_type: Optional[Type[BaseException]],
exc_val: Optional[BaseException],
exc_tb: Optional[TracebackType],
) -> None:
pass
def __iter__(self) -> Iterator[_Part]:
return iter(self._parts)
def __len__(self) -> int:
return len(self._parts)
def __bool__(self) -> bool:
return True
_valid_tchar_regex = re.compile(rb"\A[!#$%&'*+\-.^_`|~\w]+\Z")
_invalid_qdtext_char_regex = re.compile(rb"[\x00-\x08\x0A-\x1F\x7F]")
@property
def _boundary_value(self) -> str:
"""Wrap boundary parameter value in quotes, if necessary.
Reads self.boundary and returns a unicode string.
"""
# Refer to RFCs 7231, 7230, 5234.
#
# parameter = token "=" ( token / quoted-string )
# token = 1*tchar
# quoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE
# qdtext = HTAB / SP / %x21 / %x23-5B / %x5D-7E / obs-text
# obs-text = %x80-FF
# quoted-pair = "\" ( HTAB / SP / VCHAR / obs-text )
# tchar = "!" / "#" / "$" / "%" / "&" / "'" / "*"
# / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
# / DIGIT / ALPHA
# ; any VCHAR, except delimiters
# VCHAR = %x21-7E
value = self._boundary
if re.match(self._valid_tchar_regex, value):
return value.decode("ascii") # cannot fail
if re.search(self._invalid_qdtext_char_regex, value):
raise ValueError("boundary value contains invalid characters")
# escape %x5C and %x22
quoted_value_content = value.replace(b"\\", b"\\\\")
quoted_value_content = quoted_value_content.replace(b'"', b'\\"')
return '"' + quoted_value_content.decode("ascii") + '"'
@property
def boundary(self) -> str:
return self._boundary.decode("ascii")
def append(self, obj: Any, headers: Optional[MultiMapping[str]] = None) -> Payload:
if headers is None:
headers = CIMultiDict()
if isinstance(obj, Payload):
obj.headers.update(headers)
return self.append_payload(obj)
else:
try:
payload = get_payload(obj, headers=headers)
except LookupError:
raise TypeError("Cannot create payload from %r" % obj)
else:
return self.append_payload(payload)
def append_payload(self, payload: Payload) -> Payload:
"""Adds a new body part to multipart writer."""
# compression
encoding: Optional[str] = payload.headers.get(
CONTENT_ENCODING,
"",
).lower()
if encoding and encoding not in ("deflate", "gzip", "identity"):
raise RuntimeError(f"unknown content encoding: {encoding}")
if encoding == "identity":
encoding = None
# te encoding
te_encoding: Optional[str] = payload.headers.get(
CONTENT_TRANSFER_ENCODING,
"",
).lower()
if te_encoding not in ("", "base64", "quoted-printable", "binary"):
raise RuntimeError(
"unknown content transfer encoding: {}" "".format(te_encoding)
)
if te_encoding == "binary":
te_encoding = None
# size
size = payload.size
if size is not None and not (encoding or te_encoding):
payload.headers[CONTENT_LENGTH] = str(size)
self._parts.append((payload, encoding, te_encoding)) # type: ignore[arg-type]
return payload
def append_json(
self, obj: Any, headers: Optional[MultiMapping[str]] = None
) -> Payload:
"""Helper to append JSON part."""
if headers is None:
headers = CIMultiDict()
return self.append_payload(JsonPayload(obj, headers=headers))
def append_form(
self,
obj: Union[Sequence[Tuple[str, str]], Mapping[str, str]],
headers: Optional[MultiMapping[str]] = None,
) -> Payload:
"""Helper to append form urlencoded part."""
assert isinstance(obj, (Sequence, Mapping))
if headers is None:
headers = CIMultiDict()
if isinstance(obj, Mapping):
obj = list(obj.items())
data = urlencode(obj, doseq=True)
return self.append_payload(
StringPayload(
data, headers=headers, content_type="application/x-www-form-urlencoded"
)
)
@property
def size(self) -> Optional[int]:
"""Size of the payload."""
total = 0
for part, encoding, te_encoding in self._parts:
if encoding or te_encoding or part.size is None:
return None
total += int(
2
+ len(self._boundary)
+ 2
+ part.size # b'--'+self._boundary+b'\r\n'
+ len(part._binary_headers)
+ 2 # b'\r\n'
)
total += 2 + len(self._boundary) + 4 # b'--'+self._boundary+b'--\r\n'
return total
async def write(self, writer: Any, close_boundary: bool = True) -> None:
"""Write body."""
for part, encoding, te_encoding in self._parts:
await writer.write(b"--" + self._boundary + b"\r\n")
await writer.write(part._binary_headers)
if encoding or te_encoding:
w = MultipartPayloadWriter(writer)
if encoding:
w.enable_compression(encoding)
if te_encoding:
w.enable_encoding(te_encoding)
await part.write(w) # type: ignore[arg-type]
await w.write_eof()
else:
await part.write(writer)
await writer.write(b"\r\n")
if close_boundary:
await writer.write(b"--" + self._boundary + b"--\r\n")
class MultipartPayloadWriter:
def __init__(self, writer: Any) -> None:
self._writer = writer
self._encoding: Optional[str] = None
self._compress: Optional[ZLibCompressor] = None
self._encoding_buffer: Optional[bytearray] = None
def enable_encoding(self, encoding: str) -> None:
if encoding == "base64":
self._encoding = encoding
self._encoding_buffer = bytearray()
elif encoding == "quoted-printable":
self._encoding = "quoted-printable"
def enable_compression(
self, encoding: str = "deflate", strategy: int = zlib.Z_DEFAULT_STRATEGY
) -> None:
self._compress = ZLibCompressor(
encoding=encoding,
suppress_deflate_header=True,
strategy=strategy,
)
async def write_eof(self) -> None:
if self._compress is not None:
chunk = self._compress.flush()
if chunk:
self._compress = None
await self.write(chunk)
if self._encoding == "base64":
if self._encoding_buffer:
await self._writer.write(base64.b64encode(self._encoding_buffer))
async def write(self, chunk: bytes) -> None:
if self._compress is not None:
if chunk:
chunk = await self._compress.compress(chunk)
if not chunk:
return
if self._encoding == "base64":
buf = self._encoding_buffer
assert buf is not None
buf.extend(chunk)
if buf:
div, mod = divmod(len(buf), 3)
enc_chunk, self._encoding_buffer = (buf[: div * 3], buf[div * 3 :])
if enc_chunk:
b64chunk = base64.b64encode(enc_chunk)
await self._writer.write(b64chunk)
elif self._encoding == "quoted-printable":
await self._writer.write(binascii.b2a_qp(chunk))
else:
await self._writer.write(chunk)

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import asyncio
import enum
import io
import json
import mimetypes
import os
import warnings
from abc import ABC, abstractmethod
from itertools import chain
from typing import (
IO,
TYPE_CHECKING,
Any,
ByteString,
Dict,
Final,
Iterable,
Optional,
TextIO,
Tuple,
Type,
Union,
)
from multidict import CIMultiDict
from . import hdrs
from .abc import AbstractStreamWriter
from .helpers import (
_SENTINEL,
content_disposition_header,
guess_filename,
parse_mimetype,
sentinel,
)
from .streams import StreamReader
from .typedefs import JSONEncoder, _CIMultiDict
__all__ = (
"PAYLOAD_REGISTRY",
"get_payload",
"payload_type",
"Payload",
"BytesPayload",
"StringPayload",
"IOBasePayload",
"BytesIOPayload",
"BufferedReaderPayload",
"TextIOPayload",
"StringIOPayload",
"JsonPayload",
"AsyncIterablePayload",
)
TOO_LARGE_BYTES_BODY: Final[int] = 2**20 # 1 MB
if TYPE_CHECKING: # pragma: no cover
from typing import List
class LookupError(Exception):
pass
class Order(str, enum.Enum):
normal = "normal"
try_first = "try_first"
try_last = "try_last"
def get_payload(data: Any, *args: Any, **kwargs: Any) -> "Payload":
return PAYLOAD_REGISTRY.get(data, *args, **kwargs)
def register_payload(
factory: Type["Payload"], type: Any, *, order: Order = Order.normal
) -> None:
PAYLOAD_REGISTRY.register(factory, type, order=order)
class payload_type:
def __init__(self, type: Any, *, order: Order = Order.normal) -> None:
self.type = type
self.order = order
def __call__(self, factory: Type["Payload"]) -> Type["Payload"]:
register_payload(factory, self.type, order=self.order)
return factory
PayloadType = Type["Payload"]
_PayloadRegistryItem = Tuple[PayloadType, Any]
class PayloadRegistry:
"""Payload registry.
note: we need zope.interface for more efficient adapter search
"""
def __init__(self) -> None:
self._first: List[_PayloadRegistryItem] = []
self._normal: List[_PayloadRegistryItem] = []
self._last: List[_PayloadRegistryItem] = []
def get(
self,
data: Any,
*args: Any,
_CHAIN: "Type[chain[_PayloadRegistryItem]]" = chain,
**kwargs: Any,
) -> "Payload":
if isinstance(data, Payload):
return data
for factory, type in _CHAIN(self._first, self._normal, self._last):
if isinstance(data, type):
return factory(data, *args, **kwargs)
raise LookupError()
def register(
self, factory: PayloadType, type: Any, *, order: Order = Order.normal
) -> None:
if order is Order.try_first:
self._first.append((factory, type))
elif order is Order.normal:
self._normal.append((factory, type))
elif order is Order.try_last:
self._last.append((factory, type))
else:
raise ValueError(f"Unsupported order {order!r}")
class Payload(ABC):
_default_content_type: str = "application/octet-stream"
_size: Optional[int] = None
def __init__(
self,
value: Any,
headers: Optional[
Union[_CIMultiDict, Dict[str, str], Iterable[Tuple[str, str]]]
] = None,
content_type: Union[str, None, _SENTINEL] = sentinel,
filename: Optional[str] = None,
encoding: Optional[str] = None,
**kwargs: Any,
) -> None:
self._encoding = encoding
self._filename = filename
self._headers: _CIMultiDict = CIMultiDict()
self._value = value
if content_type is not sentinel and content_type is not None:
self._headers[hdrs.CONTENT_TYPE] = content_type
elif self._filename is not None:
content_type = mimetypes.guess_type(self._filename)[0]
if content_type is None:
content_type = self._default_content_type
self._headers[hdrs.CONTENT_TYPE] = content_type
else:
self._headers[hdrs.CONTENT_TYPE] = self._default_content_type
self._headers.update(headers or {})
@property
def size(self) -> Optional[int]:
"""Size of the payload."""
return self._size
@property
def filename(self) -> Optional[str]:
"""Filename of the payload."""
return self._filename
@property
def headers(self) -> _CIMultiDict:
"""Custom item headers"""
return self._headers
@property
def _binary_headers(self) -> bytes:
return (
"".join([k + ": " + v + "\r\n" for k, v in self.headers.items()]).encode(
"utf-8"
)
+ b"\r\n"
)
@property
def encoding(self) -> Optional[str]:
"""Payload encoding"""
return self._encoding
@property
def content_type(self) -> str:
"""Content type"""
return self._headers[hdrs.CONTENT_TYPE]
def set_content_disposition(
self,
disptype: str,
quote_fields: bool = True,
_charset: str = "utf-8",
**params: Any,
) -> None:
"""Sets ``Content-Disposition`` header."""
self._headers[hdrs.CONTENT_DISPOSITION] = content_disposition_header(
disptype, quote_fields=quote_fields, _charset=_charset, **params
)
@abstractmethod
async def write(self, writer: AbstractStreamWriter) -> None:
"""Write payload.
writer is an AbstractStreamWriter instance:
"""
class BytesPayload(Payload):
def __init__(self, value: ByteString, *args: Any, **kwargs: Any) -> None:
if not isinstance(value, (bytes, bytearray, memoryview)):
raise TypeError(f"value argument must be byte-ish, not {type(value)!r}")
if "content_type" not in kwargs:
kwargs["content_type"] = "application/octet-stream"
super().__init__(value, *args, **kwargs)
if isinstance(value, memoryview):
self._size = value.nbytes
else:
self._size = len(value)
if self._size > TOO_LARGE_BYTES_BODY:
kwargs = {"source": self}
warnings.warn(
"Sending a large body directly with raw bytes might"
" lock the event loop. You should probably pass an "
"io.BytesIO object instead",
ResourceWarning,
**kwargs,
)
async def write(self, writer: AbstractStreamWriter) -> None:
await writer.write(self._value)
class StringPayload(BytesPayload):
def __init__(
self,
value: str,
*args: Any,
encoding: Optional[str] = None,
content_type: Optional[str] = None,
**kwargs: Any,
) -> None:
if encoding is None:
if content_type is None:
real_encoding = "utf-8"
content_type = "text/plain; charset=utf-8"
else:
mimetype = parse_mimetype(content_type)
real_encoding = mimetype.parameters.get("charset", "utf-8")
else:
if content_type is None:
content_type = "text/plain; charset=%s" % encoding
real_encoding = encoding
super().__init__(
value.encode(real_encoding),
encoding=real_encoding,
content_type=content_type,
*args,
**kwargs,
)
class StringIOPayload(StringPayload):
def __init__(self, value: IO[str], *args: Any, **kwargs: Any) -> None:
super().__init__(value.read(), *args, **kwargs)
class IOBasePayload(Payload):
_value: IO[Any]
def __init__(
self, value: IO[Any], disposition: str = "attachment", *args: Any, **kwargs: Any
) -> None:
if "filename" not in kwargs:
kwargs["filename"] = guess_filename(value)
super().__init__(value, *args, **kwargs)
if self._filename is not None and disposition is not None:
if hdrs.CONTENT_DISPOSITION not in self.headers:
self.set_content_disposition(disposition, filename=self._filename)
async def write(self, writer: AbstractStreamWriter) -> None:
loop = asyncio.get_event_loop()
try:
chunk = await loop.run_in_executor(None, self._value.read, 2**16)
while chunk:
await writer.write(chunk)
chunk = await loop.run_in_executor(None, self._value.read, 2**16)
finally:
await loop.run_in_executor(None, self._value.close)
class TextIOPayload(IOBasePayload):
_value: TextIO
def __init__(
self,
value: TextIO,
*args: Any,
encoding: Optional[str] = None,
content_type: Optional[str] = None,
**kwargs: Any,
) -> None:
if encoding is None:
if content_type is None:
encoding = "utf-8"
content_type = "text/plain; charset=utf-8"
else:
mimetype = parse_mimetype(content_type)
encoding = mimetype.parameters.get("charset", "utf-8")
else:
if content_type is None:
content_type = "text/plain; charset=%s" % encoding
super().__init__(
value,
content_type=content_type,
encoding=encoding,
*args,
**kwargs,
)
@property
def size(self) -> Optional[int]:
try:
return os.fstat(self._value.fileno()).st_size - self._value.tell()
except OSError:
return None
async def write(self, writer: AbstractStreamWriter) -> None:
loop = asyncio.get_event_loop()
try:
chunk = await loop.run_in_executor(None, self._value.read, 2**16)
while chunk:
data = (
chunk.encode(encoding=self._encoding)
if self._encoding
else chunk.encode()
)
await writer.write(data)
chunk = await loop.run_in_executor(None, self._value.read, 2**16)
finally:
await loop.run_in_executor(None, self._value.close)
class BytesIOPayload(IOBasePayload):
@property
def size(self) -> int:
position = self._value.tell()
end = self._value.seek(0, os.SEEK_END)
self._value.seek(position)
return end - position
class BufferedReaderPayload(IOBasePayload):
@property
def size(self) -> Optional[int]:
try:
return os.fstat(self._value.fileno()).st_size - self._value.tell()
except OSError:
# data.fileno() is not supported, e.g.
# io.BufferedReader(io.BytesIO(b'data'))
return None
class JsonPayload(BytesPayload):
def __init__(
self,
value: Any,
encoding: str = "utf-8",
content_type: str = "application/json",
dumps: JSONEncoder = json.dumps,
*args: Any,
**kwargs: Any,
) -> None:
super().__init__(
dumps(value).encode(encoding),
content_type=content_type,
encoding=encoding,
*args,
**kwargs,
)
if TYPE_CHECKING: # pragma: no cover
from typing import AsyncIterable, AsyncIterator
_AsyncIterator = AsyncIterator[bytes]
_AsyncIterable = AsyncIterable[bytes]
else:
from collections.abc import AsyncIterable, AsyncIterator
_AsyncIterator = AsyncIterator
_AsyncIterable = AsyncIterable
class AsyncIterablePayload(Payload):
_iter: Optional[_AsyncIterator] = None
def __init__(self, value: _AsyncIterable, *args: Any, **kwargs: Any) -> None:
if not isinstance(value, AsyncIterable):
raise TypeError(
"value argument must support "
"collections.abc.AsyncIterable interface, "
"got {!r}".format(type(value))
)
if "content_type" not in kwargs:
kwargs["content_type"] = "application/octet-stream"
super().__init__(value, *args, **kwargs)
self._iter = value.__aiter__()
async def write(self, writer: AbstractStreamWriter) -> None:
if self._iter:
try:
# iter is not None check prevents rare cases
# when the case iterable is used twice
while True:
chunk = await self._iter.__anext__()
await writer.write(chunk)
except StopAsyncIteration:
self._iter = None
class StreamReaderPayload(AsyncIterablePayload):
def __init__(self, value: StreamReader, *args: Any, **kwargs: Any) -> None:
super().__init__(value.iter_any(), *args, **kwargs)
PAYLOAD_REGISTRY = PayloadRegistry()
PAYLOAD_REGISTRY.register(BytesPayload, (bytes, bytearray, memoryview))
PAYLOAD_REGISTRY.register(StringPayload, str)
PAYLOAD_REGISTRY.register(StringIOPayload, io.StringIO)
PAYLOAD_REGISTRY.register(TextIOPayload, io.TextIOBase)
PAYLOAD_REGISTRY.register(BytesIOPayload, io.BytesIO)
PAYLOAD_REGISTRY.register(BufferedReaderPayload, (io.BufferedReader, io.BufferedRandom))
PAYLOAD_REGISTRY.register(IOBasePayload, io.IOBase)
PAYLOAD_REGISTRY.register(StreamReaderPayload, StreamReader)
# try_last for giving a chance to more specialized async interables like
# multidict.BodyPartReaderPayload override the default
PAYLOAD_REGISTRY.register(AsyncIterablePayload, AsyncIterable, order=Order.try_last)

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"""
Payload implementation for coroutines as data provider.
As a simple case, you can upload data from file::
@aiohttp.streamer
async def file_sender(writer, file_name=None):
with open(file_name, 'rb') as f:
chunk = f.read(2**16)
while chunk:
await writer.write(chunk)
chunk = f.read(2**16)
Then you can use `file_sender` like this:
async with session.post('http://httpbin.org/post',
data=file_sender(file_name='huge_file')) as resp:
print(await resp.text())
..note:: Coroutine must accept `writer` as first argument
"""
import types
import warnings
from typing import Any, Awaitable, Callable, Dict, Tuple
from .abc import AbstractStreamWriter
from .payload import Payload, payload_type
__all__ = ("streamer",)
class _stream_wrapper:
def __init__(
self,
coro: Callable[..., Awaitable[None]],
args: Tuple[Any, ...],
kwargs: Dict[str, Any],
) -> None:
self.coro = types.coroutine(coro)
self.args = args
self.kwargs = kwargs
async def __call__(self, writer: AbstractStreamWriter) -> None:
await self.coro(writer, *self.args, **self.kwargs)
class streamer:
def __init__(self, coro: Callable[..., Awaitable[None]]) -> None:
warnings.warn(
"@streamer is deprecated, use async generators instead",
DeprecationWarning,
stacklevel=2,
)
self.coro = coro
def __call__(self, *args: Any, **kwargs: Any) -> _stream_wrapper:
return _stream_wrapper(self.coro, args, kwargs)
@payload_type(_stream_wrapper)
class StreamWrapperPayload(Payload):
async def write(self, writer: AbstractStreamWriter) -> None:
await self._value(writer)
@payload_type(streamer)
class StreamPayload(StreamWrapperPayload):
def __init__(self, value: Any, *args: Any, **kwargs: Any) -> None:
super().__init__(value(), *args, **kwargs)
async def write(self, writer: AbstractStreamWriter) -> None:
await self._value(writer)

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import asyncio
import contextlib
import warnings
from typing import Any, Awaitable, Callable, Dict, Iterator, Optional, Type, Union
import pytest
from aiohttp.helpers import isasyncgenfunction
from aiohttp.web import Application
from .test_utils import (
BaseTestServer,
RawTestServer,
TestClient,
TestServer,
loop_context,
setup_test_loop,
teardown_test_loop,
unused_port as _unused_port,
)
try:
import uvloop
except ImportError: # pragma: no cover
uvloop = None # type: ignore[assignment]
AiohttpClient = Callable[[Union[Application, BaseTestServer]], Awaitable[TestClient]]
AiohttpRawServer = Callable[[Application], Awaitable[RawTestServer]]
AiohttpServer = Callable[[Application], Awaitable[TestServer]]
def pytest_addoption(parser): # type: ignore[no-untyped-def]
parser.addoption(
"--aiohttp-fast",
action="store_true",
default=False,
help="run tests faster by disabling extra checks",
)
parser.addoption(
"--aiohttp-loop",
action="store",
default="pyloop",
help="run tests with specific loop: pyloop, uvloop or all",
)
parser.addoption(
"--aiohttp-enable-loop-debug",
action="store_true",
default=False,
help="enable event loop debug mode",
)
def pytest_fixture_setup(fixturedef): # type: ignore[no-untyped-def]
"""Set up pytest fixture.
Allow fixtures to be coroutines. Run coroutine fixtures in an event loop.
"""
func = fixturedef.func
if isasyncgenfunction(func):
# async generator fixture
is_async_gen = True
elif asyncio.iscoroutinefunction(func):
# regular async fixture
is_async_gen = False
else:
# not an async fixture, nothing to do
return
strip_request = False
if "request" not in fixturedef.argnames:
fixturedef.argnames += ("request",)
strip_request = True
def wrapper(*args, **kwargs): # type: ignore[no-untyped-def]
request = kwargs["request"]
if strip_request:
del kwargs["request"]
# if neither the fixture nor the test use the 'loop' fixture,
# 'getfixturevalue' will fail because the test is not parameterized
# (this can be removed someday if 'loop' is no longer parameterized)
if "loop" not in request.fixturenames:
raise Exception(
"Asynchronous fixtures must depend on the 'loop' fixture or "
"be used in tests depending from it."
)
_loop = request.getfixturevalue("loop")
if is_async_gen:
# for async generators, we need to advance the generator once,
# then advance it again in a finalizer
gen = func(*args, **kwargs)
def finalizer(): # type: ignore[no-untyped-def]
try:
return _loop.run_until_complete(gen.__anext__())
except StopAsyncIteration:
pass
request.addfinalizer(finalizer)
return _loop.run_until_complete(gen.__anext__())
else:
return _loop.run_until_complete(func(*args, **kwargs))
fixturedef.func = wrapper
@pytest.fixture
def fast(request): # type: ignore[no-untyped-def]
"""--fast config option"""
return request.config.getoption("--aiohttp-fast")
@pytest.fixture
def loop_debug(request): # type: ignore[no-untyped-def]
"""--enable-loop-debug config option"""
return request.config.getoption("--aiohttp-enable-loop-debug")
@contextlib.contextmanager
def _runtime_warning_context(): # type: ignore[no-untyped-def]
"""Context manager which checks for RuntimeWarnings.
This exists specifically to
avoid "coroutine 'X' was never awaited" warnings being missed.
If RuntimeWarnings occur in the context a RuntimeError is raised.
"""
with warnings.catch_warnings(record=True) as _warnings:
yield
rw = [
"{w.filename}:{w.lineno}:{w.message}".format(w=w)
for w in _warnings
if w.category == RuntimeWarning
]
if rw:
raise RuntimeError(
"{} Runtime Warning{},\n{}".format(
len(rw), "" if len(rw) == 1 else "s", "\n".join(rw)
)
)
@contextlib.contextmanager
def _passthrough_loop_context(loop, fast=False): # type: ignore[no-untyped-def]
"""Passthrough loop context.
Sets up and tears down a loop unless one is passed in via the loop
argument when it's passed straight through.
"""
if loop:
# loop already exists, pass it straight through
yield loop
else:
# this shadows loop_context's standard behavior
loop = setup_test_loop()
yield loop
teardown_test_loop(loop, fast=fast)
def pytest_pycollect_makeitem(collector, name, obj): # type: ignore[no-untyped-def]
"""Fix pytest collecting for coroutines."""
if collector.funcnamefilter(name) and asyncio.iscoroutinefunction(obj):
return list(collector._genfunctions(name, obj))
def pytest_pyfunc_call(pyfuncitem): # type: ignore[no-untyped-def]
"""Run coroutines in an event loop instead of a normal function call."""
fast = pyfuncitem.config.getoption("--aiohttp-fast")
if asyncio.iscoroutinefunction(pyfuncitem.function):
existing_loop = pyfuncitem.funcargs.get(
"proactor_loop"
) or pyfuncitem.funcargs.get("loop", None)
with _runtime_warning_context():
with _passthrough_loop_context(existing_loop, fast=fast) as _loop:
testargs = {
arg: pyfuncitem.funcargs[arg]
for arg in pyfuncitem._fixtureinfo.argnames
}
_loop.run_until_complete(pyfuncitem.obj(**testargs))
return True
def pytest_generate_tests(metafunc): # type: ignore[no-untyped-def]
if "loop_factory" not in metafunc.fixturenames:
return
loops = metafunc.config.option.aiohttp_loop
avail_factories: Dict[str, Type[asyncio.AbstractEventLoopPolicy]]
avail_factories = {"pyloop": asyncio.DefaultEventLoopPolicy}
if uvloop is not None: # pragma: no cover
avail_factories["uvloop"] = uvloop.EventLoopPolicy
if loops == "all":
loops = "pyloop,uvloop?"
factories = {} # type: ignore[var-annotated]
for name in loops.split(","):
required = not name.endswith("?")
name = name.strip(" ?")
if name not in avail_factories: # pragma: no cover
if required:
raise ValueError(
"Unknown loop '%s', available loops: %s"
% (name, list(factories.keys()))
)
else:
continue
factories[name] = avail_factories[name]
metafunc.parametrize(
"loop_factory", list(factories.values()), ids=list(factories.keys())
)
@pytest.fixture
def loop(loop_factory, fast, loop_debug): # type: ignore[no-untyped-def]
"""Return an instance of the event loop."""
policy = loop_factory()
asyncio.set_event_loop_policy(policy)
with loop_context(fast=fast) as _loop:
if loop_debug:
_loop.set_debug(True) # pragma: no cover
asyncio.set_event_loop(_loop)
yield _loop
@pytest.fixture
def proactor_loop(): # type: ignore[no-untyped-def]
policy = asyncio.WindowsProactorEventLoopPolicy() # type: ignore[attr-defined]
asyncio.set_event_loop_policy(policy)
with loop_context(policy.new_event_loop) as _loop:
asyncio.set_event_loop(_loop)
yield _loop
@pytest.fixture
def unused_port(aiohttp_unused_port: Callable[[], int]) -> Callable[[], int]:
warnings.warn(
"Deprecated, use aiohttp_unused_port fixture instead",
DeprecationWarning,
stacklevel=2,
)
return aiohttp_unused_port
@pytest.fixture
def aiohttp_unused_port() -> Callable[[], int]:
"""Return a port that is unused on the current host."""
return _unused_port
@pytest.fixture
def aiohttp_server(loop: asyncio.AbstractEventLoop) -> Iterator[AiohttpServer]:
"""Factory to create a TestServer instance, given an app.
aiohttp_server(app, **kwargs)
"""
servers = []
async def go(app, *, port=None, **kwargs): # type: ignore[no-untyped-def]
server = TestServer(app, port=port)
await server.start_server(loop=loop, **kwargs)
servers.append(server)
return server
yield go
async def finalize() -> None:
while servers:
await servers.pop().close()
loop.run_until_complete(finalize())
@pytest.fixture
def test_server(aiohttp_server): # type: ignore[no-untyped-def] # pragma: no cover
warnings.warn(
"Deprecated, use aiohttp_server fixture instead",
DeprecationWarning,
stacklevel=2,
)
return aiohttp_server
@pytest.fixture
def aiohttp_raw_server(loop: asyncio.AbstractEventLoop) -> Iterator[AiohttpRawServer]:
"""Factory to create a RawTestServer instance, given a web handler.
aiohttp_raw_server(handler, **kwargs)
"""
servers = []
async def go(handler, *, port=None, **kwargs): # type: ignore[no-untyped-def]
server = RawTestServer(handler, port=port)
await server.start_server(loop=loop, **kwargs)
servers.append(server)
return server
yield go
async def finalize() -> None:
while servers:
await servers.pop().close()
loop.run_until_complete(finalize())
@pytest.fixture
def raw_test_server( # type: ignore[no-untyped-def] # pragma: no cover
aiohttp_raw_server,
):
warnings.warn(
"Deprecated, use aiohttp_raw_server fixture instead",
DeprecationWarning,
stacklevel=2,
)
return aiohttp_raw_server
@pytest.fixture
def aiohttp_client(
loop: asyncio.AbstractEventLoop,
) -> Iterator[AiohttpClient]:
"""Factory to create a TestClient instance.
aiohttp_client(app, **kwargs)
aiohttp_client(server, **kwargs)
aiohttp_client(raw_server, **kwargs)
"""
clients = []
async def go(
__param: Union[Application, BaseTestServer],
*args: Any,
server_kwargs: Optional[Dict[str, Any]] = None,
**kwargs: Any
) -> TestClient:
if isinstance(__param, Callable) and not isinstance( # type: ignore[arg-type]
__param, (Application, BaseTestServer)
):
__param = __param(loop, *args, **kwargs)
kwargs = {}
else:
assert not args, "args should be empty"
if isinstance(__param, Application):
server_kwargs = server_kwargs or {}
server = TestServer(__param, loop=loop, **server_kwargs)
client = TestClient(server, loop=loop, **kwargs)
elif isinstance(__param, BaseTestServer):
client = TestClient(__param, loop=loop, **kwargs)
else:
raise ValueError("Unknown argument type: %r" % type(__param))
await client.start_server()
clients.append(client)
return client
yield go
async def finalize() -> None:
while clients:
await clients.pop().close()
loop.run_until_complete(finalize())
@pytest.fixture
def test_client(aiohttp_client): # type: ignore[no-untyped-def] # pragma: no cover
warnings.warn(
"Deprecated, use aiohttp_client fixture instead",
DeprecationWarning,
stacklevel=2,
)
return aiohttp_client

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.venv/Lib/site-packages/aiohttp/resolver.py Normal file
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import asyncio
import socket
from typing import Any, Dict, List, Optional, Type, Union
from .abc import AbstractResolver
from .helpers import get_running_loop
__all__ = ("ThreadedResolver", "AsyncResolver", "DefaultResolver")
try:
import aiodns
# aiodns_default = hasattr(aiodns.DNSResolver, 'gethostbyname')
except ImportError: # pragma: no cover
aiodns = None
aiodns_default = False
class ThreadedResolver(AbstractResolver):
"""Threaded resolver.
Uses an Executor for synchronous getaddrinfo() calls.
concurrent.futures.ThreadPoolExecutor is used by default.
"""
def __init__(self, loop: Optional[asyncio.AbstractEventLoop] = None) -> None:
self._loop = get_running_loop(loop)
async def resolve(
self, hostname: str, port: int = 0, family: int = socket.AF_INET
) -> List[Dict[str, Any]]:
infos = await self._loop.getaddrinfo(
hostname,
port,
type=socket.SOCK_STREAM,
family=family,
flags=socket.AI_ADDRCONFIG,
)
hosts = []
for family, _, proto, _, address in infos:
if family == socket.AF_INET6:
if len(address) < 3:
# IPv6 is not supported by Python build,
# or IPv6 is not enabled in the host
continue
if address[3]:
# This is essential for link-local IPv6 addresses.
# LL IPv6 is a VERY rare case. Strictly speaking, we should use
# getnameinfo() unconditionally, but performance makes sense.
host, _port = socket.getnameinfo(
address, socket.NI_NUMERICHOST | socket.NI_NUMERICSERV
)
port = int(_port)
else:
host, port = address[:2]
else: # IPv4
assert family == socket.AF_INET
host, port = address # type: ignore[misc]
hosts.append(
{
"hostname": hostname,
"host": host,
"port": port,
"family": family,
"proto": proto,
"flags": socket.AI_NUMERICHOST | socket.AI_NUMERICSERV,
}
)
return hosts
async def close(self) -> None:
pass
class AsyncResolver(AbstractResolver):
"""Use the `aiodns` package to make asynchronous DNS lookups"""
def __init__(
self,
loop: Optional[asyncio.AbstractEventLoop] = None,
*args: Any,
**kwargs: Any
) -> None:
if aiodns is None:
raise RuntimeError("Resolver requires aiodns library")
self._loop = get_running_loop(loop)
self._resolver = aiodns.DNSResolver(*args, loop=loop, **kwargs)
if not hasattr(self._resolver, "gethostbyname"):
# aiodns 1.1 is not available, fallback to DNSResolver.query
self.resolve = self._resolve_with_query # type: ignore
async def resolve(
self, host: str, port: int = 0, family: int = socket.AF_INET
) -> List[Dict[str, Any]]:
try:
resp = await self._resolver.gethostbyname(host, family)
except aiodns.error.DNSError as exc:
msg = exc.args[1] if len(exc.args) >= 1 else "DNS lookup failed"
raise OSError(msg) from exc
hosts = []
for address in resp.addresses:
hosts.append(
{
"hostname": host,
"host": address,
"port": port,
"family": family,
"proto": 0,
"flags": socket.AI_NUMERICHOST | socket.AI_NUMERICSERV,
}
)
if not hosts:
raise OSError("DNS lookup failed")
return hosts
async def _resolve_with_query(
self, host: str, port: int = 0, family: int = socket.AF_INET
) -> List[Dict[str, Any]]:
if family == socket.AF_INET6:
qtype = "AAAA"
else:
qtype = "A"
try:
resp = await self._resolver.query(host, qtype)
except aiodns.error.DNSError as exc:
msg = exc.args[1] if len(exc.args) >= 1 else "DNS lookup failed"
raise OSError(msg) from exc
hosts = []
for rr in resp:
hosts.append(
{
"hostname": host,
"host": rr.host,
"port": port,
"family": family,
"proto": 0,
"flags": socket.AI_NUMERICHOST,
}
)
if not hosts:
raise OSError("DNS lookup failed")
return hosts
async def close(self) -> None:
self._resolver.cancel()
_DefaultType = Type[Union[AsyncResolver, ThreadedResolver]]
DefaultResolver: _DefaultType = AsyncResolver if aiodns_default else ThreadedResolver

666
.venv/Lib/site-packages/aiohttp/streams.py Normal file
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import asyncio
import collections
import warnings
from typing import (
Awaitable,
Callable,
Deque,
Final,
Generic,
List,
Optional,
Tuple,
TypeVar,
)
from .base_protocol import BaseProtocol
from .helpers import BaseTimerContext, TimerNoop, set_exception, set_result
from .log import internal_logger
__all__ = (
"EMPTY_PAYLOAD",
"EofStream",
"StreamReader",
"DataQueue",
"FlowControlDataQueue",
)
_T = TypeVar("_T")
class EofStream(Exception):
"""eof stream indication."""
class AsyncStreamIterator(Generic[_T]):
def __init__(self, read_func: Callable[[], Awaitable[_T]]) -> None:
self.read_func = read_func
def __aiter__(self) -> "AsyncStreamIterator[_T]":
return self
async def __anext__(self) -> _T:
try:
rv = await self.read_func()
except EofStream:
raise StopAsyncIteration
if rv == b"":
raise StopAsyncIteration
return rv
class ChunkTupleAsyncStreamIterator:
def __init__(self, stream: "StreamReader") -> None:
self._stream = stream
def __aiter__(self) -> "ChunkTupleAsyncStreamIterator":
return self
async def __anext__(self) -> Tuple[bytes, bool]:
rv = await self._stream.readchunk()
if rv == (b"", False):
raise StopAsyncIteration
return rv
class AsyncStreamReaderMixin:
def __aiter__(self) -> AsyncStreamIterator[bytes]:
return AsyncStreamIterator(self.readline) # type: ignore[attr-defined]
def iter_chunked(self, n: int) -> AsyncStreamIterator[bytes]:
"""Returns an asynchronous iterator that yields chunks of size n."""
return AsyncStreamIterator(lambda: self.read(n)) # type: ignore[attr-defined]
def iter_any(self) -> AsyncStreamIterator[bytes]:
"""Yield all available data as soon as it is received."""
return AsyncStreamIterator(self.readany) # type: ignore[attr-defined]
def iter_chunks(self) -> ChunkTupleAsyncStreamIterator:
"""Yield chunks of data as they are received by the server.
The yielded objects are tuples
of (bytes, bool) as returned by the StreamReader.readchunk method.
"""
return ChunkTupleAsyncStreamIterator(self) # type: ignore[arg-type]
class StreamReader(AsyncStreamReaderMixin):
"""An enhancement of asyncio.StreamReader.
Supports asynchronous iteration by line, chunk or as available::
async for line in reader:
...
async for chunk in reader.iter_chunked(1024):
...
async for slice in reader.iter_any():
...
"""
total_bytes = 0
def __init__(
self,
protocol: BaseProtocol,
limit: int,
*,
timer: Optional[BaseTimerContext] = None,
loop: Optional[asyncio.AbstractEventLoop] = None,
) -> None:
self._protocol = protocol
self._low_water = limit
self._high_water = limit * 2
if loop is None:
loop = asyncio.get_event_loop()
self._loop = loop
self._size = 0
self._cursor = 0
self._http_chunk_splits: Optional[List[int]] = None
self._buffer: Deque[bytes] = collections.deque()
self._buffer_offset = 0
self._eof = False
self._waiter: Optional[asyncio.Future[None]] = None
self._eof_waiter: Optional[asyncio.Future[None]] = None
self._exception: Optional[BaseException] = None
self._timer = TimerNoop() if timer is None else timer
self._eof_callbacks: List[Callable[[], None]] = []
def __repr__(self) -> str:
info = [self.__class__.__name__]
if self._size:
info.append("%d bytes" % self._size)
if self._eof:
info.append("eof")
if self._low_water != 2**16: # default limit
info.append("low=%d high=%d" % (self._low_water, self._high_water))
if self._waiter:
info.append("w=%r" % self._waiter)
if self._exception:
info.append("e=%r" % self._exception)
return "<%s>" % " ".join(info)
def get_read_buffer_limits(self) -> Tuple[int, int]:
return (self._low_water, self._high_water)
def exception(self) -> Optional[BaseException]:
return self._exception
def set_exception(self, exc: BaseException) -> None:
self._exception = exc
self._eof_callbacks.clear()
waiter = self._waiter
if waiter is not None:
self._waiter = None
set_exception(waiter, exc)
waiter = self._eof_waiter
if waiter is not None:
self._eof_waiter = None
set_exception(waiter, exc)
def on_eof(self, callback: Callable[[], None]) -> None:
if self._eof:
try:
callback()
except Exception:
internal_logger.exception("Exception in eof callback")
else:
self._eof_callbacks.append(callback)
def feed_eof(self) -> None:
self._eof = True
waiter = self._waiter
if waiter is not None:
self._waiter = None
set_result(waiter, None)
waiter = self._eof_waiter
if waiter is not None:
self._eof_waiter = None
set_result(waiter, None)
for cb in self._eof_callbacks:
try:
cb()
except Exception:
internal_logger.exception("Exception in eof callback")
self._eof_callbacks.clear()
def is_eof(self) -> bool:
"""Return True if 'feed_eof' was called."""
return self._eof
def at_eof(self) -> bool:
"""Return True if the buffer is empty and 'feed_eof' was called."""
return self._eof and not self._buffer
async def wait_eof(self) -> None:
if self._eof:
return
assert self._eof_waiter is None
self._eof_waiter = self._loop.create_future()
try:
await self._eof_waiter
finally:
self._eof_waiter = None
def unread_data(self, data: bytes) -> None:
"""rollback reading some data from stream, inserting it to buffer head."""
warnings.warn(
"unread_data() is deprecated "
"and will be removed in future releases (#3260)",
DeprecationWarning,
stacklevel=2,
)
if not data:
return
if self._buffer_offset:
self._buffer[0] = self._buffer[0][self._buffer_offset :]
self._buffer_offset = 0
self._size += len(data)
self._cursor -= len(data)
self._buffer.appendleft(data)
self._eof_counter = 0
# TODO: size is ignored, remove the param later
def feed_data(self, data: bytes, size: int = 0) -> None:
assert not self._eof, "feed_data after feed_eof"
if not data:
return
self._size += len(data)
self._buffer.append(data)
self.total_bytes += len(data)
waiter = self._waiter
if waiter is not None:
self._waiter = None
set_result(waiter, None)
if self._size > self._high_water and not self._protocol._reading_paused:
self._protocol.pause_reading()
def begin_http_chunk_receiving(self) -> None:
if self._http_chunk_splits is None:
if self.total_bytes:
raise RuntimeError(
"Called begin_http_chunk_receiving when" "some data was already fed"
)
self._http_chunk_splits = []
def end_http_chunk_receiving(self) -> None:
if self._http_chunk_splits is None:
raise RuntimeError(
"Called end_chunk_receiving without calling "
"begin_chunk_receiving first"
)
# self._http_chunk_splits contains logical byte offsets from start of
# the body transfer. Each offset is the offset of the end of a chunk.
# "Logical" means bytes, accessible for a user.
# If no chunks containing logical data were received, current position
# is difinitely zero.
pos = self._http_chunk_splits[-1] if self._http_chunk_splits else 0
if self.total_bytes == pos:
# We should not add empty chunks here. So we check for that.
# Note, when chunked + gzip is used, we can receive a chunk
# of compressed data, but that data may not be enough for gzip FSM
# to yield any uncompressed data. That's why current position may
# not change after receiving a chunk.
return
self._http_chunk_splits.append(self.total_bytes)
# wake up readchunk when end of http chunk received
waiter = self._waiter
if waiter is not None:
self._waiter = None
set_result(waiter, None)
async def _wait(self, func_name: str) -> None:
# StreamReader uses a future to link the protocol feed_data() method
# to a read coroutine. Running two read coroutines at the same time
# would have an unexpected behaviour. It would not possible to know
# which coroutine would get the next data.
if self._waiter is not None:
raise RuntimeError(
"%s() called while another coroutine is "
"already waiting for incoming data" % func_name
)
waiter = self._waiter = self._loop.create_future()
try:
with self._timer:
await waiter
finally:
self._waiter = None
async def readline(self) -> bytes:
return await self.readuntil()
async def readuntil(self, separator: bytes = b"\n") -> bytes:
seplen = len(separator)
if seplen == 0:
raise ValueError("Separator should be at least one-byte string")
if self._exception is not None:
raise self._exception
chunk = b""
chunk_size = 0
not_enough = True
while not_enough:
while self._buffer and not_enough:
offset = self._buffer_offset
ichar = self._buffer[0].find(separator, offset) + 1
# Read from current offset to found separator or to the end.
data = self._read_nowait_chunk(
ichar - offset + seplen - 1 if ichar else -1
)
chunk += data
chunk_size += len(data)
if ichar:
not_enough = False
if chunk_size > self._high_water:
raise ValueError("Chunk too big")
if self._eof:
break
if not_enough:
await self._wait("readuntil")
return chunk
async def read(self, n: int = -1) -> bytes:
if self._exception is not None:
raise self._exception
# migration problem; with DataQueue you have to catch
# EofStream exception, so common way is to run payload.read() inside
# infinite loop. what can cause real infinite loop with StreamReader
# lets keep this code one major release.
if __debug__:
if self._eof and not self._buffer:
self._eof_counter = getattr(self, "_eof_counter", 0) + 1
if self._eof_counter > 5:
internal_logger.warning(
"Multiple access to StreamReader in eof state, "
"might be infinite loop.",
stack_info=True,
)
if not n:
return b""
if n < 0:
# This used to just loop creating a new waiter hoping to
# collect everything in self._buffer, but that would
# deadlock if the subprocess sends more than self.limit
# bytes. So just call self.readany() until EOF.
blocks = []
while True:
block = await self.readany()
if not block:
break
blocks.append(block)
return b"".join(blocks)
# TODO: should be `if` instead of `while`
# because waiter maybe triggered on chunk end,
# without feeding any data
while not self._buffer and not self._eof:
await self._wait("read")
return self._read_nowait(n)
async def readany(self) -> bytes:
if self._exception is not None:
raise self._exception
# TODO: should be `if` instead of `while`
# because waiter maybe triggered on chunk end,
# without feeding any data
while not self._buffer and not self._eof:
await self._wait("readany")
return self._read_nowait(-1)
async def readchunk(self) -> Tuple[bytes, bool]:
"""Returns a tuple of (data, end_of_http_chunk).
When chunked transfer
encoding is used, end_of_http_chunk is a boolean indicating if the end
of the data corresponds to the end of a HTTP chunk , otherwise it is
always False.
"""
while True:
if self._exception is not None:
raise self._exception
while self._http_chunk_splits:
pos = self._http_chunk_splits.pop(0)
if pos == self._cursor:
return (b"", True)
if pos > self._cursor:
return (self._read_nowait(pos - self._cursor), True)
internal_logger.warning(
"Skipping HTTP chunk end due to data "
"consumption beyond chunk boundary"
)
if self._buffer:
return (self._read_nowait_chunk(-1), False)
# return (self._read_nowait(-1), False)
if self._eof:
# Special case for signifying EOF.
# (b'', True) is not a final return value actually.
return (b"", False)
await self._wait("readchunk")
async def readexactly(self, n: int) -> bytes:
if self._exception is not None:
raise self._exception
blocks: List[bytes] = []
while n > 0:
block = await self.read(n)
if not block:
partial = b"".join(blocks)
raise asyncio.IncompleteReadError(partial, len(partial) + n)
blocks.append(block)
n -= len(block)
return b"".join(blocks)
def read_nowait(self, n: int = -1) -> bytes:
# default was changed to be consistent with .read(-1)
#
# I believe the most users don't know about the method and
# they are not affected.
if self._exception is not None:
raise self._exception
if self._waiter and not self._waiter.done():
raise RuntimeError(
"Called while some coroutine is waiting for incoming data."
)
return self._read_nowait(n)
def _read_nowait_chunk(self, n: int) -> bytes:
first_buffer = self._buffer[0]
offset = self._buffer_offset
if n != -1 and len(first_buffer) - offset > n:
data = first_buffer[offset : offset + n]
self._buffer_offset += n
elif offset:
self._buffer.popleft()
data = first_buffer[offset:]
self._buffer_offset = 0
else:
data = self._buffer.popleft()
self._size -= len(data)
self._cursor += len(data)
chunk_splits = self._http_chunk_splits
# Prevent memory leak: drop useless chunk splits
while chunk_splits and chunk_splits[0] < self._cursor:
chunk_splits.pop(0)
if self._size < self._low_water and self._protocol._reading_paused:
self._protocol.resume_reading()
return data
def _read_nowait(self, n: int) -> bytes:
"""Read not more than n bytes, or whole buffer if n == -1"""
self._timer.assert_timeout()
chunks = []
while self._buffer:
chunk = self._read_nowait_chunk(n)
chunks.append(chunk)
if n != -1:
n -= len(chunk)
if n == 0:
break
return b"".join(chunks) if chunks else b""
class EmptyStreamReader(StreamReader): # lgtm [py/missing-call-to-init]
def __init__(self) -> None:
self._read_eof_chunk = False
def __repr__(self) -> str:
return "<%s>" % self.__class__.__name__
def exception(self) -> Optional[BaseException]:
return None
def set_exception(self, exc: BaseException) -> None:
pass
def on_eof(self, callback: Callable[[], None]) -> None:
try:
callback()
except Exception:
internal_logger.exception("Exception in eof callback")
def feed_eof(self) -> None:
pass
def is_eof(self) -> bool:
return True
def at_eof(self) -> bool:
return True
async def wait_eof(self) -> None:
return
def feed_data(self, data: bytes, n: int = 0) -> None:
pass
async def readline(self) -> bytes:
return b""
async def read(self, n: int = -1) -> bytes:
return b""
# TODO add async def readuntil
async def readany(self) -> bytes:
return b""
async def readchunk(self) -> Tuple[bytes, bool]:
if not self._read_eof_chunk:
self._read_eof_chunk = True
return (b"", False)
return (b"", True)
async def readexactly(self, n: int) -> bytes:
raise asyncio.IncompleteReadError(b"", n)
def read_nowait(self, n: int = -1) -> bytes:
return b""
EMPTY_PAYLOAD: Final[StreamReader] = EmptyStreamReader()
class DataQueue(Generic[_T]):
"""DataQueue is a general-purpose blocking queue with one reader."""
def __init__(self, loop: asyncio.AbstractEventLoop) -> None:
self._loop = loop
self._eof = False
self._waiter: Optional[asyncio.Future[None]] = None
self._exception: Optional[BaseException] = None
self._size = 0
self._buffer: Deque[Tuple[_T, int]] = collections.deque()
def __len__(self) -> int:
return len(self._buffer)
def is_eof(self) -> bool:
return self._eof
def at_eof(self) -> bool:
return self._eof and not self._buffer
def exception(self) -> Optional[BaseException]:
return self._exception
def set_exception(self, exc: BaseException) -> None:
self._eof = True
self._exception = exc
waiter = self._waiter
if waiter is not None:
self._waiter = None
set_exception(waiter, exc)
def feed_data(self, data: _T, size: int = 0) -> None:
self._size += size
self._buffer.append((data, size))
waiter = self._waiter
if waiter is not None:
self._waiter = None
set_result(waiter, None)
def feed_eof(self) -> None:
self._eof = True
waiter = self._waiter
if waiter is not None:
self._waiter = None
set_result(waiter, None)
async def read(self) -> _T:
if not self._buffer and not self._eof:
assert not self._waiter
self._waiter = self._loop.create_future()
try:
await self._waiter
except (asyncio.CancelledError, asyncio.TimeoutError):
self._waiter = None
raise
if self._buffer:
data, size = self._buffer.popleft()
self._size -= size
return data
else:
if self._exception is not None:
raise self._exception
else:
raise EofStream
def __aiter__(self) -> AsyncStreamIterator[_T]:
return AsyncStreamIterator(self.read)
class FlowControlDataQueue(DataQueue[_T]):
"""FlowControlDataQueue resumes and pauses an underlying stream.
It is a destination for parsed data.
"""
def __init__(
self, protocol: BaseProtocol, limit: int, *, loop: asyncio.AbstractEventLoop
) -> None:
super().__init__(loop=loop)
self._protocol = protocol
self._limit = limit * 2
def feed_data(self, data: _T, size: int = 0) -> None:
super().feed_data(data, size)
if self._size > self._limit and not self._protocol._reading_paused:
self._protocol.pause_reading()
async def read(self) -> _T:
try:
return await super().read()
finally:
if self._size < self._limit and self._protocol._reading_paused:
self._protocol.resume_reading()

37
.venv/Lib/site-packages/aiohttp/tcp_helpers.py Normal file
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"""Helper methods to tune a TCP connection"""
import asyncio
import socket
from contextlib import suppress
from typing import Optional # noqa
__all__ = ("tcp_keepalive", "tcp_nodelay")
if hasattr(socket, "SO_KEEPALIVE"):
def tcp_keepalive(transport: asyncio.Transport) -> None:
sock = transport.get_extra_info("socket")
if sock is not None:
sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
else:
def tcp_keepalive(transport: asyncio.Transport) -> None: # pragma: no cover
pass
def tcp_nodelay(transport: asyncio.Transport, value: bool) -> None:
sock = transport.get_extra_info("socket")
if sock is None:
return
if sock.family not in (socket.AF_INET, socket.AF_INET6):
return
value = bool(value)
# socket may be closed already, on windows OSError get raised
with suppress(OSError):
sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, value)

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.venv/Lib/site-packages/aiohttp/test_utils.py Normal file
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"""Utilities shared by tests."""
import asyncio
import contextlib
import gc
import inspect
import ipaddress
import os
import socket
import sys
import warnings
from abc import ABC, abstractmethod
from types import TracebackType
from typing import (
TYPE_CHECKING,
Any,
Callable,
Iterator,
List,
Optional,
Type,
Union,
cast,
)
from unittest import IsolatedAsyncioTestCase, mock
from aiosignal import Signal
from multidict import CIMultiDict, CIMultiDictProxy
from yarl import URL
import aiohttp
from aiohttp.client import _RequestContextManager, _WSRequestContextManager
from . import ClientSession, hdrs
from .abc import AbstractCookieJar
from .client_reqrep import ClientResponse
from .client_ws import ClientWebSocketResponse
from .helpers import sentinel
from .http import HttpVersion, RawRequestMessage
from .typedefs import StrOrURL
from .web import (
Application,
AppRunner,
BaseRunner,
Request,
Server,
ServerRunner,
SockSite,
UrlMappingMatchInfo,
)
from .web_protocol import _RequestHandler
if TYPE_CHECKING: # pragma: no cover
from ssl import SSLContext
else:
SSLContext = None
REUSE_ADDRESS = os.name == "posix" and sys.platform != "cygwin"
def get_unused_port_socket(
host: str, family: socket.AddressFamily = socket.AF_INET
) -> socket.socket:
return get_port_socket(host, 0, family)
def get_port_socket(
host: str, port: int, family: socket.AddressFamily
) -> socket.socket:
s = socket.socket(family, socket.SOCK_STREAM)
if REUSE_ADDRESS:
# Windows has different semantics for SO_REUSEADDR,
# so don't set it. Ref:
# https://docs.microsoft.com/en-us/windows/win32/winsock/using-so-reuseaddr-and-so-exclusiveaddruse
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind((host, port))
return s
def unused_port() -> int:
"""Return a port that is unused on the current host."""
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
s.bind(("127.0.0.1", 0))
return cast(int, s.getsockname()[1])
class BaseTestServer(ABC):
__test__ = False
def __init__(
self,
*,
scheme: Union[str, object] = sentinel,
loop: Optional[asyncio.AbstractEventLoop] = None,
host: str = "127.0.0.1",
port: Optional[int] = None,
skip_url_asserts: bool = False,
socket_factory: Callable[
[str, int, socket.AddressFamily], socket.socket
] = get_port_socket,
**kwargs: Any,
) -> None:
self._loop = loop
self.runner: Optional[BaseRunner] = None
self._root: Optional[URL] = None
self.host = host
self.port = port
self._closed = False
self.scheme = scheme
self.skip_url_asserts = skip_url_asserts
self.socket_factory = socket_factory
async def start_server(
self, loop: Optional[asyncio.AbstractEventLoop] = None, **kwargs: Any
) -> None:
if self.runner:
return
self._loop = loop
self._ssl = kwargs.pop("ssl", None)
self.runner = await self._make_runner(handler_cancellation=True, **kwargs)
await self.runner.setup()
if not self.port:
self.port = 0
try:
version = ipaddress.ip_address(self.host).version
except ValueError:
version = 4
family = socket.AF_INET6 if version == 6 else socket.AF_INET
_sock = self.socket_factory(self.host, self.port, family)
self.host, self.port = _sock.getsockname()[:2]
site = SockSite(self.runner, sock=_sock, ssl_context=self._ssl)
await site.start()
server = site._server
assert server is not None
sockets = server.sockets # type: ignore[attr-defined]
assert sockets is not None
self.port = sockets[0].getsockname()[1]
if self.scheme is sentinel:
if self._ssl:
scheme = "https"
else:
scheme = "http"
self.scheme = scheme
self._root = URL(f"{self.scheme}://{self.host}:{self.port}")
@abstractmethod # pragma: no cover
async def _make_runner(self, **kwargs: Any) -> BaseRunner:
pass
def make_url(self, path: StrOrURL) -> URL:
assert self._root is not None
url = URL(path)
if not self.skip_url_asserts:
assert not url.is_absolute()
return self._root.join(url)
else:
return URL(str(self._root) + str(path))
@property
def started(self) -> bool:
return self.runner is not None
@property
def closed(self) -> bool:
return self._closed
@property
def handler(self) -> Server:
# for backward compatibility
# web.Server instance
runner = self.runner
assert runner is not None
assert runner.server is not None
return runner.server
async def close(self) -> None:
"""Close all fixtures created by the test client.
After that point, the TestClient is no longer usable.
This is an idempotent function: running close multiple times
will not have any additional effects.
close is also run when the object is garbage collected, and on
exit when used as a context manager.
"""
if self.started and not self.closed:
assert self.runner is not None
await self.runner.cleanup()
self._root = None
self.port = None
self._closed = True
def __enter__(self) -> None:
raise TypeError("Use async with instead")
def __exit__(
self,
exc_type: Optional[Type[BaseException]],
exc_value: Optional[BaseException],
traceback: Optional[TracebackType],
) -> None:
# __exit__ should exist in pair with __enter__ but never executed
pass # pragma: no cover
async def __aenter__(self) -> "BaseTestServer":
await self.start_server(loop=self._loop)
return self
async def __aexit__(
self,
exc_type: Optional[Type[BaseException]],
exc_value: Optional[BaseException],
traceback: Optional[TracebackType],
) -> None:
await self.close()
class TestServer(BaseTestServer):
def __init__(
self,
app: Application,
*,
scheme: Union[str, object] = sentinel,
host: str = "127.0.0.1",
port: Optional[int] = None,
**kwargs: Any,
):
self.app = app
super().__init__(scheme=scheme, host=host, port=port, **kwargs)
async def _make_runner(self, **kwargs: Any) -> BaseRunner:
return AppRunner(self.app, **kwargs)
class RawTestServer(BaseTestServer):
def __init__(
self,
handler: _RequestHandler,
*,
scheme: Union[str, object] = sentinel,
host: str = "127.0.0.1",
port: Optional[int] = None,
**kwargs: Any,
) -> None:
self._handler = handler
super().__init__(scheme=scheme, host=host, port=port, **kwargs)
async def _make_runner(self, debug: bool = True, **kwargs: Any) -> ServerRunner:
srv = Server(self._handler, loop=self._loop, debug=debug, **kwargs)
return ServerRunner(srv, debug=debug, **kwargs)
class TestClient:
"""
A test client implementation.
To write functional tests for aiohttp based servers.
"""
__test__ = False
def __init__(
self,
server: BaseTestServer,
*,
cookie_jar: Optional[AbstractCookieJar] = None,
loop: Optional[asyncio.AbstractEventLoop] = None,
**kwargs: Any,
) -> None:
if not isinstance(server, BaseTestServer):
raise TypeError(
"server must be TestServer " "instance, found type: %r" % type(server)
)
self._server = server
self._loop = loop
if cookie_jar is None:
cookie_jar = aiohttp.CookieJar(unsafe=True, loop=loop)
self._session = ClientSession(loop=loop, cookie_jar=cookie_jar, **kwargs)
self._closed = False
self._responses: List[ClientResponse] = []
self._websockets: List[ClientWebSocketResponse] = []
async def start_server(self) -> None:
await self._server.start_server(loop=self._loop)
@property
def host(self) -> str:
return self._server.host
@property
def port(self) -> Optional[int]:
return self._server.port
@property
def server(self) -> BaseTestServer:
return self._server
@property
def app(self) -> Optional[Application]:
return cast(Optional[Application], getattr(self._server, "app", None))
@property
def session(self) -> ClientSession:
"""An internal aiohttp.ClientSession.
Unlike the methods on the TestClient, client session requests
do not automatically include the host in the url queried, and
will require an absolute path to the resource.
"""
return self._session
def make_url(self, path: StrOrURL) -> URL:
return self._server.make_url(path)
async def _request(
self, method: str, path: StrOrURL, **kwargs: Any
) -> ClientResponse:
resp = await self._session.request(method, self.make_url(path), **kwargs)
# save it to close later
self._responses.append(resp)
return resp
def request(
self, method: str, path: StrOrURL, **kwargs: Any
) -> _RequestContextManager:
"""Routes a request to tested http server.
The interface is identical to aiohttp.ClientSession.request,
except the loop kwarg is overridden by the instance used by the
test server.
"""
return _RequestContextManager(self._request(method, path, **kwargs))
def get(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
"""Perform an HTTP GET request."""
return _RequestContextManager(self._request(hdrs.METH_GET, path, **kwargs))
def post(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
"""Perform an HTTP POST request."""
return _RequestContextManager(self._request(hdrs.METH_POST, path, **kwargs))
def options(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
"""Perform an HTTP OPTIONS request."""
return _RequestContextManager(self._request(hdrs.METH_OPTIONS, path, **kwargs))
def head(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
"""Perform an HTTP HEAD request."""
return _RequestContextManager(self._request(hdrs.METH_HEAD, path, **kwargs))
def put(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
"""Perform an HTTP PUT request."""
return _RequestContextManager(self._request(hdrs.METH_PUT, path, **kwargs))
def patch(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
"""Perform an HTTP PATCH request."""
return _RequestContextManager(self._request(hdrs.METH_PATCH, path, **kwargs))
def delete(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
"""Perform an HTTP PATCH request."""
return _RequestContextManager(self._request(hdrs.METH_DELETE, path, **kwargs))
def ws_connect(self, path: StrOrURL, **kwargs: Any) -> _WSRequestContextManager:
"""Initiate websocket connection.
The api corresponds to aiohttp.ClientSession.ws_connect.
"""
return _WSRequestContextManager(self._ws_connect(path, **kwargs))
async def _ws_connect(
self, path: StrOrURL, **kwargs: Any
) -> ClientWebSocketResponse:
ws = await self._session.ws_connect(self.make_url(path), **kwargs)
self._websockets.append(ws)
return ws
async def close(self) -> None:
"""Close all fixtures created by the test client.
After that point, the TestClient is no longer usable.
This is an idempotent function: running close multiple times
will not have any additional effects.
close is also run on exit when used as a(n) (asynchronous)
context manager.
"""
if not self._closed:
for resp in self._responses:
resp.close()
for ws in self._websockets:
await ws.close()
await self._session.close()
await self._server.close()
self._closed = True
def __enter__(self) -> None:
raise TypeError("Use async with instead")
def __exit__(
self,
exc_type: Optional[Type[BaseException]],
exc: Optional[BaseException],
tb: Optional[TracebackType],
) -> None:
# __exit__ should exist in pair with __enter__ but never executed
pass # pragma: no cover
async def __aenter__(self) -> "TestClient":
await self.start_server()
return self
async def __aexit__(
self,
exc_type: Optional[Type[BaseException]],
exc: Optional[BaseException],
tb: Optional[TracebackType],
) -> None:
await self.close()
class AioHTTPTestCase(IsolatedAsyncioTestCase):
"""A base class to allow for unittest web applications using aiohttp.
Provides the following:
* self.client (aiohttp.test_utils.TestClient): an aiohttp test client.
* self.loop (asyncio.BaseEventLoop): the event loop in which the
application and server are running.
* self.app (aiohttp.web.Application): the application returned by
self.get_application()
Note that the TestClient's methods are asynchronous: you have to
execute function on the test client using asynchronous methods.
"""
async def get_application(self) -> Application:
"""Get application.
This method should be overridden
to return the aiohttp.web.Application
object to test.
"""
return self.get_app()
def get_app(self) -> Application:
"""Obsolete method used to constructing web application.
Use .get_application() coroutine instead.
"""
raise RuntimeError("Did you forget to define get_application()?")
async def asyncSetUp(self) -> None:
self.loop = asyncio.get_running_loop()
return await self.setUpAsync()
async def setUpAsync(self) -> None:
self.app = await self.get_application()
self.server = await self.get_server(self.app)
self.client = await self.get_client(self.server)
await self.client.start_server()
async def asyncTearDown(self) -> None:
return await self.tearDownAsync()
async def tearDownAsync(self) -> None:
await self.client.close()
async def get_server(self, app: Application) -> TestServer:
"""Return a TestServer instance."""
return TestServer(app, loop=self.loop)
async def get_client(self, server: TestServer) -> TestClient:
"""Return a TestClient instance."""
return TestClient(server, loop=self.loop)
def unittest_run_loop(func: Any, *args: Any, **kwargs: Any) -> Any:
"""
A decorator dedicated to use with asynchronous AioHTTPTestCase test methods.
In 3.8+, this does nothing.
"""
warnings.warn(
"Decorator `@unittest_run_loop` is no longer needed in aiohttp 3.8+",
DeprecationWarning,
stacklevel=2,
)
return func
_LOOP_FACTORY = Callable[[], asyncio.AbstractEventLoop]
@contextlib.contextmanager
def loop_context(
loop_factory: _LOOP_FACTORY = asyncio.new_event_loop, fast: bool = False
) -> Iterator[asyncio.AbstractEventLoop]:
"""A contextmanager that creates an event_loop, for test purposes.
Handles the creation and cleanup of a test loop.
"""
loop = setup_test_loop(loop_factory)
yield loop
teardown_test_loop(loop, fast=fast)
def setup_test_loop(
loop_factory: _LOOP_FACTORY = asyncio.new_event_loop,
) -> asyncio.AbstractEventLoop:
"""Create and return an asyncio.BaseEventLoop instance.
The caller should also call teardown_test_loop,
once they are done with the loop.
"""
loop = loop_factory()
asyncio.set_event_loop(loop)
return loop
def teardown_test_loop(loop: asyncio.AbstractEventLoop, fast: bool = False) -> None:
"""Teardown and cleanup an event_loop created by setup_test_loop."""
closed = loop.is_closed()
if not closed:
loop.call_soon(loop.stop)
loop.run_forever()
loop.close()
if not fast:
gc.collect()
asyncio.set_event_loop(None)
def _create_app_mock() -> mock.MagicMock:
def get_dict(app: Any, key: str) -> Any:
return app.__app_dict[key]
def set_dict(app: Any, key: str, value: Any) -> None:
app.__app_dict[key] = value
app = mock.MagicMock(spec=Application)
app.__app_dict = {}
app.__getitem__ = get_dict
app.__setitem__ = set_dict
app._debug = False
app.on_response_prepare = Signal(app)
app.on_response_prepare.freeze()
return app
def _create_transport(sslcontext: Optional[SSLContext] = None) -> mock.Mock:
transport = mock.Mock()
def get_extra_info(key: str) -> Optional[SSLContext]:
if key == "sslcontext":
return sslcontext
else:
return None
transport.get_extra_info.side_effect = get_extra_info
return transport
def make_mocked_request(
method: str,
path: str,
headers: Any = None,
*,
match_info: Any = sentinel,
version: HttpVersion = HttpVersion(1, 1),
closing: bool = False,
app: Any = None,
writer: Any = sentinel,
protocol: Any = sentinel,
transport: Any = sentinel,
payload: Any = sentinel,
sslcontext: Optional[SSLContext] = None,
client_max_size: int = 1024**2,
loop: Any = ...,
) -> Request:
"""Creates mocked web.Request testing purposes.
Useful in unit tests, when spinning full web server is overkill or
specific conditions and errors are hard to trigger.
"""
task = mock.Mock()
if loop is ...:
loop = mock.Mock()
loop.create_future.return_value = ()
if version < HttpVersion(1, 1):
closing = True
if headers:
headers = CIMultiDictProxy(CIMultiDict(headers))
raw_hdrs = tuple(
(k.encode("utf-8"), v.encode("utf-8")) for k, v in headers.items()
)
else:
headers = CIMultiDictProxy(CIMultiDict())
raw_hdrs = ()
chunked = "chunked" in headers.get(hdrs.TRANSFER_ENCODING, "").lower()
message = RawRequestMessage(
method,
path,
version,
headers,
raw_hdrs,
closing,
None,
False,
chunked,
URL(path),
)
if app is None:
app = _create_app_mock()
if transport is sentinel:
transport = _create_transport(sslcontext)
if protocol is sentinel:
protocol = mock.Mock()
protocol.transport = transport
if writer is sentinel:
writer = mock.Mock()
writer.write_headers = make_mocked_coro(None)
writer.write = make_mocked_coro(None)
writer.write_eof = make_mocked_coro(None)
writer.drain = make_mocked_coro(None)
writer.transport = transport
protocol.transport = transport
protocol.writer = writer
if payload is sentinel:
payload = mock.Mock()
req = Request(
message, payload, protocol, writer, task, loop, client_max_size=client_max_size
)
match_info = UrlMappingMatchInfo(
{} if match_info is sentinel else match_info, mock.Mock()
)
match_info.add_app(app)
req._match_info = match_info
return req
def make_mocked_coro(
return_value: Any = sentinel, raise_exception: Any = sentinel
) -> Any:
"""Creates a coroutine mock."""
async def mock_coro(*args: Any, **kwargs: Any) -> Any:
if raise_exception is not sentinel:
raise raise_exception
if not inspect.isawaitable(return_value):
return return_value
await return_value
return mock.Mock(wraps=mock_coro)

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.venv/Lib/site-packages/aiohttp/tracing.py Normal file
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@ -0,0 +1,471 @@
from types import SimpleNamespace
from typing import TYPE_CHECKING, Awaitable, Optional, Protocol, Type, TypeVar
import attr
from aiosignal import Signal
from multidict import CIMultiDict
from yarl import URL
from .client_reqrep import ClientResponse
if TYPE_CHECKING: # pragma: no cover
from .client import ClientSession
_ParamT_contra = TypeVar("_ParamT_contra", contravariant=True)
class _SignalCallback(Protocol[_ParamT_contra]):
def __call__(
self,
__client_session: ClientSession,
__trace_config_ctx: SimpleNamespace,
__params: _ParamT_contra,
) -> Awaitable[None]:
...
__all__ = (
"TraceConfig",
"TraceRequestStartParams",
"TraceRequestEndParams",
"TraceRequestExceptionParams",
"TraceConnectionQueuedStartParams",
"TraceConnectionQueuedEndParams",
"TraceConnectionCreateStartParams",
"TraceConnectionCreateEndParams",
"TraceConnectionReuseconnParams",
"TraceDnsResolveHostStartParams",
"TraceDnsResolveHostEndParams",
"TraceDnsCacheHitParams",
"TraceDnsCacheMissParams",
"TraceRequestRedirectParams",
"TraceRequestChunkSentParams",
"TraceResponseChunkReceivedParams",
"TraceRequestHeadersSentParams",
)
class TraceConfig:
"""First-class used to trace requests launched via ClientSession objects."""
def __init__(
self, trace_config_ctx_factory: Type[SimpleNamespace] = SimpleNamespace
) -> None:
self._on_request_start: Signal[
_SignalCallback[TraceRequestStartParams]
] = Signal(self)
self._on_request_chunk_sent: Signal[
_SignalCallback[TraceRequestChunkSentParams]
] = Signal(self)
self._on_response_chunk_received: Signal[
_SignalCallback[TraceResponseChunkReceivedParams]
] = Signal(self)
self._on_request_end: Signal[_SignalCallback[TraceRequestEndParams]] = Signal(
self
)
self._on_request_exception: Signal[
_SignalCallback[TraceRequestExceptionParams]
] = Signal(self)
self._on_request_redirect: Signal[
_SignalCallback[TraceRequestRedirectParams]
] = Signal(self)
self._on_connection_queued_start: Signal[
_SignalCallback[TraceConnectionQueuedStartParams]
] = Signal(self)
self._on_connection_queued_end: Signal[
_SignalCallback[TraceConnectionQueuedEndParams]
] = Signal(self)
self._on_connection_create_start: Signal[
_SignalCallback[TraceConnectionCreateStartParams]
] = Signal(self)
self._on_connection_create_end: Signal[
_SignalCallback[TraceConnectionCreateEndParams]
] = Signal(self)
self._on_connection_reuseconn: Signal[
_SignalCallback[TraceConnectionReuseconnParams]
] = Signal(self)
self._on_dns_resolvehost_start: Signal[
_SignalCallback[TraceDnsResolveHostStartParams]
] = Signal(self)
self._on_dns_resolvehost_end: Signal[
_SignalCallback[TraceDnsResolveHostEndParams]
] = Signal(self)
self._on_dns_cache_hit: Signal[
_SignalCallback[TraceDnsCacheHitParams]
] = Signal(self)
self._on_dns_cache_miss: Signal[
_SignalCallback[TraceDnsCacheMissParams]
] = Signal(self)
self._on_request_headers_sent: Signal[
_SignalCallback[TraceRequestHeadersSentParams]
] = Signal(self)
self._trace_config_ctx_factory = trace_config_ctx_factory
def trace_config_ctx(
self, trace_request_ctx: Optional[SimpleNamespace] = None
) -> SimpleNamespace:
"""Return a new trace_config_ctx instance"""
return self._trace_config_ctx_factory(trace_request_ctx=trace_request_ctx)
def freeze(self) -> None:
self._on_request_start.freeze()
self._on_request_chunk_sent.freeze()
self._on_response_chunk_received.freeze()
self._on_request_end.freeze()
self._on_request_exception.freeze()
self._on_request_redirect.freeze()
self._on_connection_queued_start.freeze()
self._on_connection_queued_end.freeze()
self._on_connection_create_start.freeze()
self._on_connection_create_end.freeze()
self._on_connection_reuseconn.freeze()
self._on_dns_resolvehost_start.freeze()
self._on_dns_resolvehost_end.freeze()
self._on_dns_cache_hit.freeze()
self._on_dns_cache_miss.freeze()
self._on_request_headers_sent.freeze()
@property
def on_request_start(self) -> "Signal[_SignalCallback[TraceRequestStartParams]]":
return self._on_request_start
@property
def on_request_chunk_sent(
self,
) -> "Signal[_SignalCallback[TraceRequestChunkSentParams]]":
return self._on_request_chunk_sent
@property
def on_response_chunk_received(
self,
) -> "Signal[_SignalCallback[TraceResponseChunkReceivedParams]]":
return self._on_response_chunk_received
@property
def on_request_end(self) -> "Signal[_SignalCallback[TraceRequestEndParams]]":
return self._on_request_end
@property
def on_request_exception(
self,
) -> "Signal[_SignalCallback[TraceRequestExceptionParams]]":
return self._on_request_exception
@property
def on_request_redirect(
self,
) -> "Signal[_SignalCallback[TraceRequestRedirectParams]]":
return self._on_request_redirect
@property
def on_connection_queued_start(
self,
) -> "Signal[_SignalCallback[TraceConnectionQueuedStartParams]]":
return self._on_connection_queued_start
@property
def on_connection_queued_end(
self,
) -> "Signal[_SignalCallback[TraceConnectionQueuedEndParams]]":
return self._on_connection_queued_end
@property
def on_connection_create_start(
self,
) -> "Signal[_SignalCallback[TraceConnectionCreateStartParams]]":
return self._on_connection_create_start
@property
def on_connection_create_end(
self,
) -> "Signal[_SignalCallback[TraceConnectionCreateEndParams]]":
return self._on_connection_create_end
@property
def on_connection_reuseconn(
self,
) -> "Signal[_SignalCallback[TraceConnectionReuseconnParams]]":
return self._on_connection_reuseconn
@property
def on_dns_resolvehost_start(
self,
) -> "Signal[_SignalCallback[TraceDnsResolveHostStartParams]]":
return self._on_dns_resolvehost_start
@property
def on_dns_resolvehost_end(
self,
) -> "Signal[_SignalCallback[TraceDnsResolveHostEndParams]]":
return self._on_dns_resolvehost_end
@property
def on_dns_cache_hit(self) -> "Signal[_SignalCallback[TraceDnsCacheHitParams]]":
return self._on_dns_cache_hit
@property
def on_dns_cache_miss(self) -> "Signal[_SignalCallback[TraceDnsCacheMissParams]]":
return self._on_dns_cache_miss
@property
def on_request_headers_sent(
self,
) -> "Signal[_SignalCallback[TraceRequestHeadersSentParams]]":
return self._on_request_headers_sent
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceRequestStartParams:
"""Parameters sent by the `on_request_start` signal"""
method: str
url: URL
headers: "CIMultiDict[str]"
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceRequestChunkSentParams:
"""Parameters sent by the `on_request_chunk_sent` signal"""
method: str
url: URL
chunk: bytes
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceResponseChunkReceivedParams:
"""Parameters sent by the `on_response_chunk_received` signal"""
method: str
url: URL
chunk: bytes
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceRequestEndParams:
"""Parameters sent by the `on_request_end` signal"""
method: str
url: URL
headers: "CIMultiDict[str]"
response: ClientResponse
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceRequestExceptionParams:
"""Parameters sent by the `on_request_exception` signal"""
method: str
url: URL
headers: "CIMultiDict[str]"
exception: BaseException
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceRequestRedirectParams:
"""Parameters sent by the `on_request_redirect` signal"""
method: str
url: URL
headers: "CIMultiDict[str]"
response: ClientResponse
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceConnectionQueuedStartParams:
"""Parameters sent by the `on_connection_queued_start` signal"""
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceConnectionQueuedEndParams:
"""Parameters sent by the `on_connection_queued_end` signal"""
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceConnectionCreateStartParams:
"""Parameters sent by the `on_connection_create_start` signal"""
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceConnectionCreateEndParams:
"""Parameters sent by the `on_connection_create_end` signal"""
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceConnectionReuseconnParams:
"""Parameters sent by the `on_connection_reuseconn` signal"""
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceDnsResolveHostStartParams:
"""Parameters sent by the `on_dns_resolvehost_start` signal"""
host: str
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceDnsResolveHostEndParams:
"""Parameters sent by the `on_dns_resolvehost_end` signal"""
host: str
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceDnsCacheHitParams:
"""Parameters sent by the `on_dns_cache_hit` signal"""
host: str
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceDnsCacheMissParams:
"""Parameters sent by the `on_dns_cache_miss` signal"""
host: str
@attr.s(auto_attribs=True, frozen=True, slots=True)
class TraceRequestHeadersSentParams:
"""Parameters sent by the `on_request_headers_sent` signal"""
method: str
url: URL
headers: "CIMultiDict[str]"
class Trace:
"""Internal dependency holder class.
Used to keep together the main dependencies used
at the moment of send a signal.
"""
def __init__(
self,
session: "ClientSession",
trace_config: TraceConfig,
trace_config_ctx: SimpleNamespace,
) -> None:
self._trace_config = trace_config
self._trace_config_ctx = trace_config_ctx
self._session = session
async def send_request_start(
self, method: str, url: URL, headers: "CIMultiDict[str]"
) -> None:
return await self._trace_config.on_request_start.send(
self._session,
self._trace_config_ctx,
TraceRequestStartParams(method, url, headers),
)
async def send_request_chunk_sent(
self, method: str, url: URL, chunk: bytes
) -> None:
return await self._trace_config.on_request_chunk_sent.send(
self._session,
self._trace_config_ctx,
TraceRequestChunkSentParams(method, url, chunk),
)
async def send_response_chunk_received(
self, method: str, url: URL, chunk: bytes
) -> None:
return await self._trace_config.on_response_chunk_received.send(
self._session,
self._trace_config_ctx,
TraceResponseChunkReceivedParams(method, url, chunk),
)
async def send_request_end(
self,
method: str,
url: URL,
headers: "CIMultiDict[str]",
response: ClientResponse,
) -> None:
return await self._trace_config.on_request_end.send(
self._session,
self._trace_config_ctx,
TraceRequestEndParams(method, url, headers, response),
)
async def send_request_exception(
self,
method: str,
url: URL,
headers: "CIMultiDict[str]",
exception: BaseException,
) -> None:
return await self._trace_config.on_request_exception.send(
self._session,
self._trace_config_ctx,
TraceRequestExceptionParams(method, url, headers, exception),
)
async def send_request_redirect(
self,
method: str,
url: URL,
headers: "CIMultiDict[str]",
response: ClientResponse,
) -> None:
return await self._trace_config._on_request_redirect.send(
self._session,
self._trace_config_ctx,
TraceRequestRedirectParams(method, url, headers, response),
)
async def send_connection_queued_start(self) -> None:
return await self._trace_config.on_connection_queued_start.send(
self._session, self._trace_config_ctx, TraceConnectionQueuedStartParams()
)
async def send_connection_queued_end(self) -> None:
return await self._trace_config.on_connection_queued_end.send(
self._session, self._trace_config_ctx, TraceConnectionQueuedEndParams()
)
async def send_connection_create_start(self) -> None:
return await self._trace_config.on_connection_create_start.send(
self._session, self._trace_config_ctx, TraceConnectionCreateStartParams()
)
async def send_connection_create_end(self) -> None:
return await self._trace_config.on_connection_create_end.send(
self._session, self._trace_config_ctx, TraceConnectionCreateEndParams()
)
async def send_connection_reuseconn(self) -> None:
return await self._trace_config.on_connection_reuseconn.send(
self._session, self._trace_config_ctx, TraceConnectionReuseconnParams()
)
async def send_dns_resolvehost_start(self, host: str) -> None:
return await self._trace_config.on_dns_resolvehost_start.send(
self._session, self._trace_config_ctx, TraceDnsResolveHostStartParams(host)
)
async def send_dns_resolvehost_end(self, host: str) -> None:
return await self._trace_config.on_dns_resolvehost_end.send(
self._session, self._trace_config_ctx, TraceDnsResolveHostEndParams(host)
)
async def send_dns_cache_hit(self, host: str) -> None:
return await self._trace_config.on_dns_cache_hit.send(
self._session, self._trace_config_ctx, TraceDnsCacheHitParams(host)
)
async def send_dns_cache_miss(self, host: str) -> None:
return await self._trace_config.on_dns_cache_miss.send(
self._session, self._trace_config_ctx, TraceDnsCacheMissParams(host)
)
async def send_request_headers(
self, method: str, url: URL, headers: "CIMultiDict[str]"
) -> None:
return await self._trace_config._on_request_headers_sent.send(
self._session,
self._trace_config_ctx,
TraceRequestHeadersSentParams(method, url, headers),
)

54
.venv/Lib/site-packages/aiohttp/typedefs.py Normal file
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import json
import os
from typing import (
TYPE_CHECKING,
Any,
Awaitable,
Callable,
Iterable,
Mapping,
Tuple,
Union,
)
from multidict import CIMultiDict, CIMultiDictProxy, MultiDict, MultiDictProxy, istr
from yarl import URL
DEFAULT_JSON_ENCODER = json.dumps
DEFAULT_JSON_DECODER = json.loads
if TYPE_CHECKING: # pragma: no cover
_CIMultiDict = CIMultiDict[str]
_CIMultiDictProxy = CIMultiDictProxy[str]
_MultiDict = MultiDict[str]
_MultiDictProxy = MultiDictProxy[str]
from http.cookies import BaseCookie, Morsel
from .web import Request, StreamResponse
else:
_CIMultiDict = CIMultiDict
_CIMultiDictProxy = CIMultiDictProxy
_MultiDict = MultiDict
_MultiDictProxy = MultiDictProxy
Byteish = Union[bytes, bytearray, memoryview]
JSONEncoder = Callable[[Any], str]
JSONDecoder = Callable[[str], Any]
LooseHeaders = Union[Mapping[Union[str, istr], str], _CIMultiDict, _CIMultiDictProxy]
RawHeaders = Tuple[Tuple[bytes, bytes], ...]
StrOrURL = Union[str, URL]
LooseCookiesMappings = Mapping[str, Union[str, "BaseCookie[str]", "Morsel[Any]"]]
LooseCookiesIterables = Iterable[
Tuple[str, Union[str, "BaseCookie[str]", "Morsel[Any]"]]
]
LooseCookies = Union[
LooseCookiesMappings,
LooseCookiesIterables,
"BaseCookie[str]",
]
Handler = Callable[["Request"], Awaitable["StreamResponse"]]
Middleware = Callable[["Request", Handler], Awaitable["StreamResponse"]]
PathLike = Union[str, "os.PathLike[str]"]

616
.venv/Lib/site-packages/aiohttp/web.py Normal file
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@ -0,0 +1,616 @@
import asyncio
import logging
import os
import socket
import sys
import warnings
from argparse import ArgumentParser
from collections.abc import Iterable
from contextlib import suppress
from functools import partial
from importlib import import_module
from typing import (
Any,
Awaitable,
Callable,
Iterable as TypingIterable,
List,
Optional,
Set,
Type,
Union,
cast,
)
from weakref import WeakSet
from .abc import AbstractAccessLogger
from .helpers import AppKey as AppKey
from .log import access_logger
from .typedefs import PathLike
from .web_app import Application as Application, CleanupError as CleanupError
from .web_exceptions import (
HTTPAccepted as HTTPAccepted,
HTTPBadGateway as HTTPBadGateway,
HTTPBadRequest as HTTPBadRequest,
HTTPClientError as HTTPClientError,
HTTPConflict as HTTPConflict,
HTTPCreated as HTTPCreated,
HTTPError as HTTPError,
HTTPException as HTTPException,
HTTPExpectationFailed as HTTPExpectationFailed,
HTTPFailedDependency as HTTPFailedDependency,
HTTPForbidden as HTTPForbidden,
HTTPFound as HTTPFound,
HTTPGatewayTimeout as HTTPGatewayTimeout,
HTTPGone as HTTPGone,
HTTPInsufficientStorage as HTTPInsufficientStorage,
HTTPInternalServerError as HTTPInternalServerError,
HTTPLengthRequired as HTTPLengthRequired,
HTTPMethodNotAllowed as HTTPMethodNotAllowed,
HTTPMisdirectedRequest as HTTPMisdirectedRequest,
HTTPMove as HTTPMove,
HTTPMovedPermanently as HTTPMovedPermanently,
HTTPMultipleChoices as HTTPMultipleChoices,
HTTPNetworkAuthenticationRequired as HTTPNetworkAuthenticationRequired,
HTTPNoContent as HTTPNoContent,
HTTPNonAuthoritativeInformation as HTTPNonAuthoritativeInformation,
HTTPNotAcceptable as HTTPNotAcceptable,
HTTPNotExtended as HTTPNotExtended,
HTTPNotFound as HTTPNotFound,
HTTPNotImplemented as HTTPNotImplemented,
HTTPNotModified as HTTPNotModified,
HTTPOk as HTTPOk,
HTTPPartialContent as HTTPPartialContent,
HTTPPaymentRequired as HTTPPaymentRequired,
HTTPPermanentRedirect as HTTPPermanentRedirect,
HTTPPreconditionFailed as HTTPPreconditionFailed,
HTTPPreconditionRequired as HTTPPreconditionRequired,
HTTPProxyAuthenticationRequired as HTTPProxyAuthenticationRequired,
HTTPRedirection as HTTPRedirection,
HTTPRequestEntityTooLarge as HTTPRequestEntityTooLarge,
HTTPRequestHeaderFieldsTooLarge as HTTPRequestHeaderFieldsTooLarge,
HTTPRequestRangeNotSatisfiable as HTTPRequestRangeNotSatisfiable,
HTTPRequestTimeout as HTTPRequestTimeout,
HTTPRequestURITooLong as HTTPRequestURITooLong,
HTTPResetContent as HTTPResetContent,
HTTPSeeOther as HTTPSeeOther,
HTTPServerError as HTTPServerError,
HTTPServiceUnavailable as HTTPServiceUnavailable,
HTTPSuccessful as HTTPSuccessful,
HTTPTemporaryRedirect as HTTPTemporaryRedirect,
HTTPTooManyRequests as HTTPTooManyRequests,
HTTPUnauthorized as HTTPUnauthorized,
HTTPUnavailableForLegalReasons as HTTPUnavailableForLegalReasons,
HTTPUnprocessableEntity as HTTPUnprocessableEntity,
HTTPUnsupportedMediaType as HTTPUnsupportedMediaType,
HTTPUpgradeRequired as HTTPUpgradeRequired,
HTTPUseProxy as HTTPUseProxy,
HTTPVariantAlsoNegotiates as HTTPVariantAlsoNegotiates,
HTTPVersionNotSupported as HTTPVersionNotSupported,
NotAppKeyWarning as NotAppKeyWarning,
)
from .web_fileresponse import FileResponse as FileResponse
from .web_log import AccessLogger
from .web_middlewares import (
middleware as middleware,
normalize_path_middleware as normalize_path_middleware,
)
from .web_protocol import (
PayloadAccessError as PayloadAccessError,
RequestHandler as RequestHandler,
RequestPayloadError as RequestPayloadError,
)
from .web_request import (
BaseRequest as BaseRequest,
FileField as FileField,
Request as Request,
)
from .web_response import (
ContentCoding as ContentCoding,
Response as Response,
StreamResponse as StreamResponse,
json_response as json_response,
)
from .web_routedef import (
AbstractRouteDef as AbstractRouteDef,
RouteDef as RouteDef,
RouteTableDef as RouteTableDef,
StaticDef as StaticDef,
delete as delete,
get as get,
head as head,
options as options,
patch as patch,
post as post,
put as put,
route as route,
static as static,
view as view,
)
from .web_runner import (
AppRunner as AppRunner,
BaseRunner as BaseRunner,
BaseSite as BaseSite,
GracefulExit as GracefulExit,
NamedPipeSite as NamedPipeSite,
ServerRunner as ServerRunner,
SockSite as SockSite,
TCPSite as TCPSite,
UnixSite as UnixSite,
)
from .web_server import Server as Server
from .web_urldispatcher import (
AbstractResource as AbstractResource,
AbstractRoute as AbstractRoute,
DynamicResource as DynamicResource,
PlainResource as PlainResource,
PrefixedSubAppResource as PrefixedSubAppResource,
Resource as Resource,
ResourceRoute as ResourceRoute,
StaticResource as StaticResource,
UrlDispatcher as UrlDispatcher,
UrlMappingMatchInfo as UrlMappingMatchInfo,
View as View,
)
from .web_ws import (
WebSocketReady as WebSocketReady,
WebSocketResponse as WebSocketResponse,
WSMsgType as WSMsgType,
)
__all__ = (
# web_app
"AppKey",
"Application",
"CleanupError",
# web_exceptions
"NotAppKeyWarning",
"HTTPAccepted",
"HTTPBadGateway",
"HTTPBadRequest",
"HTTPClientError",
"HTTPConflict",
"HTTPCreated",
"HTTPError",
"HTTPException",
"HTTPExpectationFailed",
"HTTPFailedDependency",
"HTTPForbidden",
"HTTPFound",
"HTTPGatewayTimeout",
"HTTPGone",
"HTTPInsufficientStorage",
"HTTPInternalServerError",
"HTTPLengthRequired",
"HTTPMethodNotAllowed",
"HTTPMisdirectedRequest",
"HTTPMove",
"HTTPMovedPermanently",
"HTTPMultipleChoices",
"HTTPNetworkAuthenticationRequired",
"HTTPNoContent",
"HTTPNonAuthoritativeInformation",
"HTTPNotAcceptable",
"HTTPNotExtended",
"HTTPNotFound",
"HTTPNotImplemented",
"HTTPNotModified",
"HTTPOk",
"HTTPPartialContent",
"HTTPPaymentRequired",
"HTTPPermanentRedirect",
"HTTPPreconditionFailed",
"HTTPPreconditionRequired",
"HTTPProxyAuthenticationRequired",
"HTTPRedirection",
"HTTPRequestEntityTooLarge",
"HTTPRequestHeaderFieldsTooLarge",
"HTTPRequestRangeNotSatisfiable",
"HTTPRequestTimeout",
"HTTPRequestURITooLong",
"HTTPResetContent",
"HTTPSeeOther",
"HTTPServerError",
"HTTPServiceUnavailable",
"HTTPSuccessful",
"HTTPTemporaryRedirect",
"HTTPTooManyRequests",
"HTTPUnauthorized",
"HTTPUnavailableForLegalReasons",
"HTTPUnprocessableEntity",
"HTTPUnsupportedMediaType",
"HTTPUpgradeRequired",
"HTTPUseProxy",
"HTTPVariantAlsoNegotiates",
"HTTPVersionNotSupported",
# web_fileresponse
"FileResponse",
# web_middlewares
"middleware",
"normalize_path_middleware",
# web_protocol
"PayloadAccessError",
"RequestHandler",
"RequestPayloadError",
# web_request
"BaseRequest",
"FileField",
"Request",
# web_response
"ContentCoding",
"Response",
"StreamResponse",
"json_response",
# web_routedef
"AbstractRouteDef",
"RouteDef",
"RouteTableDef",
"StaticDef",
"delete",
"get",
"head",
"options",
"patch",
"post",
"put",
"route",
"static",
"view",
# web_runner
"AppRunner",
"BaseRunner",
"BaseSite",
"GracefulExit",
"ServerRunner",
"SockSite",
"TCPSite",
"UnixSite",
"NamedPipeSite",
# web_server
"Server",
# web_urldispatcher
"AbstractResource",
"AbstractRoute",
"DynamicResource",
"PlainResource",
"PrefixedSubAppResource",
"Resource",
"ResourceRoute",
"StaticResource",
"UrlDispatcher",
"UrlMappingMatchInfo",
"View",
# web_ws
"WebSocketReady",
"WebSocketResponse",
"WSMsgType",
# web
"run_app",
)
try:
from ssl import SSLContext
except ImportError: # pragma: no cover
SSLContext = Any # type: ignore[misc,assignment]
# Only display warning when using -Wdefault, -We, -X dev or similar.
warnings.filterwarnings("ignore", category=NotAppKeyWarning, append=True)
HostSequence = TypingIterable[str]
async def _run_app(
app: Union[Application, Awaitable[Application]],
*,
host: Optional[Union[str, HostSequence]] = None,
port: Optional[int] = None,
path: Union[PathLike, TypingIterable[PathLike], None] = None,
sock: Optional[Union[socket.socket, TypingIterable[socket.socket]]] = None,
shutdown_timeout: float = 60.0,
keepalive_timeout: float = 75.0,
ssl_context: Optional[SSLContext] = None,
print: Optional[Callable[..., None]] = print,
backlog: int = 128,
access_log_class: Type[AbstractAccessLogger] = AccessLogger,
access_log_format: str = AccessLogger.LOG_FORMAT,
access_log: Optional[logging.Logger] = access_logger,
handle_signals: bool = True,
reuse_address: Optional[bool] = None,
reuse_port: Optional[bool] = None,
handler_cancellation: bool = False,
) -> None:
async def wait(
starting_tasks: "WeakSet[asyncio.Task[object]]", shutdown_timeout: float
) -> None:
# Wait for pending tasks for a given time limit.
t = asyncio.current_task()
assert t is not None
starting_tasks.add(t)
with suppress(asyncio.TimeoutError):
await asyncio.wait_for(_wait(starting_tasks), timeout=shutdown_timeout)
async def _wait(exclude: "WeakSet[asyncio.Task[object]]") -> None:
t = asyncio.current_task()
assert t is not None
exclude.add(t)
while tasks := asyncio.all_tasks().difference(exclude):
await asyncio.wait(tasks)
# An internal function to actually do all dirty job for application running
if asyncio.iscoroutine(app):
app = await app
app = cast(Application, app)
runner = AppRunner(
app,
handle_signals=handle_signals,
access_log_class=access_log_class,
access_log_format=access_log_format,
access_log=access_log,
keepalive_timeout=keepalive_timeout,
shutdown_timeout=shutdown_timeout,
handler_cancellation=handler_cancellation,
)
await runner.setup()
# On shutdown we want to avoid waiting on tasks which run forever.
# It's very likely that all tasks which run forever will have been created by
# the time we have completed the application startup (in runner.setup()),
# so we just record all running tasks here and exclude them later.
starting_tasks: "WeakSet[asyncio.Task[object]]" = WeakSet(asyncio.all_tasks())
runner.shutdown_callback = partial(wait, starting_tasks, shutdown_timeout)
sites: List[BaseSite] = []
try:
if host is not None:
if isinstance(host, (str, bytes, bytearray, memoryview)):
sites.append(
TCPSite(
runner,
host,
port,
ssl_context=ssl_context,
backlog=backlog,
reuse_address=reuse_address,
reuse_port=reuse_port,
)
)
else:
for h in host:
sites.append(
TCPSite(
runner,
h,
port,
ssl_context=ssl_context,
backlog=backlog,
reuse_address=reuse_address,
reuse_port=reuse_port,
)
)
elif path is None and sock is None or port is not None:
sites.append(
TCPSite(
runner,
port=port,
ssl_context=ssl_context,
backlog=backlog,
reuse_address=reuse_address,
reuse_port=reuse_port,
)
)
if path is not None:
if isinstance(path, (str, os.PathLike)):
sites.append(
UnixSite(
runner,
path,
ssl_context=ssl_context,
backlog=backlog,
)
)
else:
for p in path:
sites.append(
UnixSite(
runner,
p,
ssl_context=ssl_context,
backlog=backlog,
)
)
if sock is not None:
if not isinstance(sock, Iterable):
sites.append(
SockSite(
runner,
sock,
ssl_context=ssl_context,
backlog=backlog,
)
)
else:
for s in sock:
sites.append(
SockSite(
runner,
s,
ssl_context=ssl_context,
backlog=backlog,
)
)
for site in sites:
await site.start()
if print: # pragma: no branch
names = sorted(str(s.name) for s in runner.sites)
print(
"======== Running on {} ========\n"
"(Press CTRL+C to quit)".format(", ".join(names))
)
# sleep forever by 1 hour intervals,
while True:
await asyncio.sleep(3600)
finally:
await runner.cleanup()
def _cancel_tasks(
to_cancel: Set["asyncio.Task[Any]"], loop: asyncio.AbstractEventLoop
) -> None:
if not to_cancel:
return
for task in to_cancel:
task.cancel()
loop.run_until_complete(asyncio.gather(*to_cancel, return_exceptions=True))
for task in to_cancel:
if task.cancelled():
continue
if task.exception() is not None:
loop.call_exception_handler(
{
"message": "unhandled exception during asyncio.run() shutdown",
"exception": task.exception(),
"task": task,
}
)
def run_app(
app: Union[Application, Awaitable[Application]],
*,
host: Optional[Union[str, HostSequence]] = None,
port: Optional[int] = None,
path: Union[PathLike, TypingIterable[PathLike], None] = None,
sock: Optional[Union[socket.socket, TypingIterable[socket.socket]]] = None,
shutdown_timeout: float = 60.0,
keepalive_timeout: float = 75.0,
ssl_context: Optional[SSLContext] = None,
print: Optional[Callable[..., None]] = print,
backlog: int = 128,
access_log_class: Type[AbstractAccessLogger] = AccessLogger,
access_log_format: str = AccessLogger.LOG_FORMAT,
access_log: Optional[logging.Logger] = access_logger,
handle_signals: bool = True,
reuse_address: Optional[bool] = None,
reuse_port: Optional[bool] = None,
handler_cancellation: bool = False,
loop: Optional[asyncio.AbstractEventLoop] = None,
) -> None:
"""Run an app locally"""
if loop is None:
loop = asyncio.new_event_loop()
# Configure if and only if in debugging mode and using the default logger
if loop.get_debug() and access_log and access_log.name == "aiohttp.access":
if access_log.level == logging.NOTSET:
access_log.setLevel(logging.DEBUG)
if not access_log.hasHandlers():
access_log.addHandler(logging.StreamHandler())
main_task = loop.create_task(
_run_app(
app,
host=host,
port=port,
path=path,
sock=sock,
shutdown_timeout=shutdown_timeout,
keepalive_timeout=keepalive_timeout,
ssl_context=ssl_context,
print=print,
backlog=backlog,
access_log_class=access_log_class,
access_log_format=access_log_format,
access_log=access_log,
handle_signals=handle_signals,
reuse_address=reuse_address,
reuse_port=reuse_port,
handler_cancellation=handler_cancellation,
)
)
try:
asyncio.set_event_loop(loop)
loop.run_until_complete(main_task)
except (GracefulExit, KeyboardInterrupt): # pragma: no cover
pass
finally:
_cancel_tasks({main_task}, loop)
_cancel_tasks(asyncio.all_tasks(loop), loop)
loop.run_until_complete(loop.shutdown_asyncgens())
loop.close()
def main(argv: List[str]) -> None:
arg_parser = ArgumentParser(
description="aiohttp.web Application server", prog="aiohttp.web"
)
arg_parser.add_argument(
"entry_func",
help=(
"Callable returning the `aiohttp.web.Application` instance to "
"run. Should be specified in the 'module:function' syntax."
),
metavar="entry-func",
)
arg_parser.add_argument(
"-H",
"--hostname",
help="TCP/IP hostname to serve on (default: %(default)r)",
default="localhost",
)
arg_parser.add_argument(
"-P",
"--port",
help="TCP/IP port to serve on (default: %(default)r)",
type=int,
default="8080",
)
arg_parser.add_argument(
"-U",
"--path",
help="Unix file system path to serve on. Specifying a path will cause "
"hostname and port arguments to be ignored.",
)
args, extra_argv = arg_parser.parse_known_args(argv)
# Import logic
mod_str, _, func_str = args.entry_func.partition(":")
if not func_str or not mod_str:
arg_parser.error("'entry-func' not in 'module:function' syntax")
if mod_str.startswith("."):
arg_parser.error("relative module names not supported")
try:
module = import_module(mod_str)
except ImportError as ex:
arg_parser.error(f"unable to import {mod_str}: {ex}")
try:
func = getattr(module, func_str)
except AttributeError:
arg_parser.error(f"module {mod_str!r} has no attribute {func_str!r}")
# Compatibility logic
if args.path is not None and not hasattr(socket, "AF_UNIX"):
arg_parser.error(
"file system paths not supported by your operating" " environment"
)
logging.basicConfig(level=logging.DEBUG)
app = func(extra_argv)
run_app(app, host=args.hostname, port=args.port, path=args.path)
arg_parser.exit(message="Stopped\n")
if __name__ == "__main__": # pragma: no branch
main(sys.argv[1:]) # pragma: no cover

596
.venv/Lib/site-packages/aiohttp/web_app.py Normal file
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@ -0,0 +1,596 @@
import asyncio
import logging
import warnings
from functools import partial, update_wrapper
from typing import (
TYPE_CHECKING,
Any,
AsyncIterator,
Awaitable,
Callable,
Dict,
Iterable,
Iterator,
List,
Mapping,
MutableMapping,
Optional,
Sequence,
Tuple,
Type,
TypeVar,
Union,
cast,
overload,
)
from aiosignal import Signal
from frozenlist import FrozenList
from . import hdrs
from .abc import (
AbstractAccessLogger,
AbstractMatchInfo,
AbstractRouter,
AbstractStreamWriter,
)
from .helpers import DEBUG, AppKey
from .http_parser import RawRequestMessage
from .log import web_logger
from .streams import StreamReader
from .typedefs import Middleware
from .web_exceptions import NotAppKeyWarning
from .web_log import AccessLogger
from .web_middlewares import _fix_request_current_app
from .web_protocol import RequestHandler
from .web_request import Request
from .web_response import StreamResponse
from .web_routedef import AbstractRouteDef
from .web_server import Server
from .web_urldispatcher import (
AbstractResource,
AbstractRoute,
Domain,
MaskDomain,
MatchedSubAppResource,
PrefixedSubAppResource,
UrlDispatcher,
)
__all__ = ("Application", "CleanupError")
if TYPE_CHECKING: # pragma: no cover
_AppSignal = Signal[Callable[["Application"], Awaitable[None]]]
_RespPrepareSignal = Signal[Callable[[Request, StreamResponse], Awaitable[None]]]
_Middlewares = FrozenList[Middleware]
_MiddlewaresHandlers = Optional[Sequence[Tuple[Middleware, bool]]]
_Subapps = List["Application"]
else:
# No type checker mode, skip types
_AppSignal = Signal
_RespPrepareSignal = Signal
_Middlewares = FrozenList
_MiddlewaresHandlers = Optional[Sequence]
_Subapps = List
_T = TypeVar("_T")
_U = TypeVar("_U")
class Application(MutableMapping[Union[str, AppKey[Any]], Any]):
ATTRS = frozenset(
[
"logger",
"_debug",
"_router",
"_loop",
"_handler_args",
"_middlewares",
"_middlewares_handlers",
"_run_middlewares",
"_state",
"_frozen",
"_pre_frozen",
"_subapps",
"_on_response_prepare",
"_on_startup",
"_on_shutdown",
"_on_cleanup",
"_client_max_size",
"_cleanup_ctx",
]
)
def __init__(
self,
*,
logger: logging.Logger = web_logger,
router: Optional[UrlDispatcher] = None,
middlewares: Iterable[Middleware] = (),
handler_args: Optional[Mapping[str, Any]] = None,
client_max_size: int = 1024**2,
loop: Optional[asyncio.AbstractEventLoop] = None,
debug: Any = ..., # mypy doesn't support ellipsis
) -> None:
if router is None:
router = UrlDispatcher()
else:
warnings.warn(
"router argument is deprecated", DeprecationWarning, stacklevel=2
)
assert isinstance(router, AbstractRouter), router
if loop is not None:
warnings.warn(
"loop argument is deprecated", DeprecationWarning, stacklevel=2
)
if debug is not ...:
warnings.warn(
"debug argument is deprecated", DeprecationWarning, stacklevel=2
)
self._debug = debug
self._router: UrlDispatcher = router
self._loop = loop
self._handler_args = handler_args
self.logger = logger
self._middlewares: _Middlewares = FrozenList(middlewares)
# initialized on freezing
self._middlewares_handlers: _MiddlewaresHandlers = None
# initialized on freezing
self._run_middlewares: Optional[bool] = None
self._state: Dict[Union[AppKey[Any], str], object] = {}
self._frozen = False
self._pre_frozen = False
self._subapps: _Subapps = []
self._on_response_prepare: _RespPrepareSignal = Signal(self)
self._on_startup: _AppSignal = Signal(self)
self._on_shutdown: _AppSignal = Signal(self)
self._on_cleanup: _AppSignal = Signal(self)
self._cleanup_ctx = CleanupContext()
self._on_startup.append(self._cleanup_ctx._on_startup)
self._on_cleanup.append(self._cleanup_ctx._on_cleanup)
self._client_max_size = client_max_size
def __init_subclass__(cls: Type["Application"]) -> None:
warnings.warn(
"Inheritance class {} from web.Application "
"is discouraged".format(cls.__name__),
DeprecationWarning,
stacklevel=3,
)
if DEBUG: # pragma: no cover
def __setattr__(self, name: str, val: Any) -> None:
if name not in self.ATTRS:
warnings.warn(
"Setting custom web.Application.{} attribute "
"is discouraged".format(name),
DeprecationWarning,
stacklevel=2,
)
super().__setattr__(name, val)
# MutableMapping API
def __eq__(self, other: object) -> bool:
return self is other
@overload # type: ignore[override]
def __getitem__(self, key: AppKey[_T]) -> _T:
...
@overload
def __getitem__(self, key: str) -> Any:
...
def __getitem__(self, key: Union[str, AppKey[_T]]) -> Any:
return self._state[key]
def _check_frozen(self) -> None:
if self._frozen:
warnings.warn(
"Changing state of started or joined " "application is deprecated",
DeprecationWarning,
stacklevel=3,
)
@overload # type: ignore[override]
def __setitem__(self, key: AppKey[_T], value: _T) -> None:
...
@overload
def __setitem__(self, key: str, value: Any) -> None:
...
def __setitem__(self, key: Union[str, AppKey[_T]], value: Any) -> None:
self._check_frozen()
if not isinstance(key, AppKey):
warnings.warn(
"It is recommended to use web.AppKey instances for keys.\n"
+ "https://docs.aiohttp.org/en/stable/web_advanced.html"
+ "#application-s-config",
category=NotAppKeyWarning,
stacklevel=2,
)
self._state[key] = value
def __delitem__(self, key: Union[str, AppKey[_T]]) -> None:
self._check_frozen()
del self._state[key]
def __len__(self) -> int:
return len(self._state)
def __iter__(self) -> Iterator[Union[str, AppKey[Any]]]:
return iter(self._state)
@overload # type: ignore[override]
def get(self, key: AppKey[_T], default: None = ...) -> Optional[_T]:
...
@overload
def get(self, key: AppKey[_T], default: _U) -> Union[_T, _U]:
...
@overload
def get(self, key: str, default: Any = ...) -> Any:
...
def get(self, key: Union[str, AppKey[_T]], default: Any = None) -> Any:
return self._state.get(key, default)
########
@property
def loop(self) -> asyncio.AbstractEventLoop:
# Technically the loop can be None
# but we mask it by explicit type cast
# to provide more convenient type annotation
warnings.warn("loop property is deprecated", DeprecationWarning, stacklevel=2)
return cast(asyncio.AbstractEventLoop, self._loop)
def _set_loop(self, loop: Optional[asyncio.AbstractEventLoop]) -> None:
if loop is None:
loop = asyncio.get_event_loop()
if self._loop is not None and self._loop is not loop:
raise RuntimeError(
"web.Application instance initialized with different loop"
)
self._loop = loop
# set loop debug
if self._debug is ...:
self._debug = loop.get_debug()
# set loop to sub applications
for subapp in self._subapps:
subapp._set_loop(loop)
@property
def pre_frozen(self) -> bool:
return self._pre_frozen
def pre_freeze(self) -> None:
if self._pre_frozen:
return
self._pre_frozen = True
self._middlewares.freeze()
self._router.freeze()
self._on_response_prepare.freeze()
self._cleanup_ctx.freeze()
self._on_startup.freeze()
self._on_shutdown.freeze()
self._on_cleanup.freeze()
self._middlewares_handlers = tuple(self._prepare_middleware())
# If current app and any subapp do not have middlewares avoid run all
# of the code footprint that it implies, which have a middleware
# hardcoded per app that sets up the current_app attribute. If no
# middlewares are configured the handler will receive the proper
# current_app without needing all of this code.
self._run_middlewares = True if self.middlewares else False
for subapp in self._subapps:
subapp.pre_freeze()
self._run_middlewares = self._run_middlewares or subapp._run_middlewares
@property
def frozen(self) -> bool:
return self._frozen
def freeze(self) -> None:
if self._frozen:
return
self.pre_freeze()
self._frozen = True
for subapp in self._subapps:
subapp.freeze()
@property
def debug(self) -> bool:
warnings.warn("debug property is deprecated", DeprecationWarning, stacklevel=2)
return self._debug # type: ignore[no-any-return]
def _reg_subapp_signals(self, subapp: "Application") -> None:
def reg_handler(signame: str) -> None:
subsig = getattr(subapp, signame)
async def handler(app: "Application") -> None:
await subsig.send(subapp)
appsig = getattr(self, signame)
appsig.append(handler)
reg_handler("on_startup")
reg_handler("on_shutdown")
reg_handler("on_cleanup")
def add_subapp(self, prefix: str, subapp: "Application") -> AbstractResource:
if not isinstance(prefix, str):
raise TypeError("Prefix must be str")
prefix = prefix.rstrip("/")
if not prefix:
raise ValueError("Prefix cannot be empty")
factory = partial(PrefixedSubAppResource, prefix, subapp)
return self._add_subapp(factory, subapp)
def _add_subapp(
self, resource_factory: Callable[[], AbstractResource], subapp: "Application"
) -> AbstractResource:
if self.frozen:
raise RuntimeError("Cannot add sub application to frozen application")
if subapp.frozen:
raise RuntimeError("Cannot add frozen application")
resource = resource_factory()
self.router.register_resource(resource)
self._reg_subapp_signals(subapp)
self._subapps.append(subapp)
subapp.pre_freeze()
if self._loop is not None:
subapp._set_loop(self._loop)
return resource
def add_domain(self, domain: str, subapp: "Application") -> AbstractResource:
if not isinstance(domain, str):
raise TypeError("Domain must be str")
elif "*" in domain:
rule: Domain = MaskDomain(domain)
else:
rule = Domain(domain)
factory = partial(MatchedSubAppResource, rule, subapp)
return self._add_subapp(factory, subapp)
def add_routes(self, routes: Iterable[AbstractRouteDef]) -> List[AbstractRoute]:
return self.router.add_routes(routes)
@property
def on_response_prepare(self) -> _RespPrepareSignal:
return self._on_response_prepare
@property
def on_startup(self) -> _AppSignal:
return self._on_startup
@property
def on_shutdown(self) -> _AppSignal:
return self._on_shutdown
@property
def on_cleanup(self) -> _AppSignal:
return self._on_cleanup
@property
def cleanup_ctx(self) -> "CleanupContext":
return self._cleanup_ctx
@property
def router(self) -> UrlDispatcher:
return self._router
@property
def middlewares(self) -> _Middlewares:
return self._middlewares
def _make_handler(
self,
*,
loop: Optional[asyncio.AbstractEventLoop] = None,
access_log_class: Type[AbstractAccessLogger] = AccessLogger,
**kwargs: Any,
) -> Server:
if not issubclass(access_log_class, AbstractAccessLogger):
raise TypeError(
"access_log_class must be subclass of "
"aiohttp.abc.AbstractAccessLogger, got {}".format(access_log_class)
)
self._set_loop(loop)
self.freeze()
kwargs["debug"] = self._debug
kwargs["access_log_class"] = access_log_class
if self._handler_args:
for k, v in self._handler_args.items():
kwargs[k] = v
return Server(
self._handle, # type: ignore[arg-type]
request_factory=self._make_request,
loop=self._loop,
**kwargs,
)
def make_handler(
self,
*,
loop: Optional[asyncio.AbstractEventLoop] = None,
access_log_class: Type[AbstractAccessLogger] = AccessLogger,
**kwargs: Any,
) -> Server:
warnings.warn(
"Application.make_handler(...) is deprecated, " "use AppRunner API instead",
DeprecationWarning,
stacklevel=2,
)
return self._make_handler(
loop=loop, access_log_class=access_log_class, **kwargs
)
async def startup(self) -> None:
"""Causes on_startup signal
Should be called in the event loop along with the request handler.
"""
await self.on_startup.send(self)
async def shutdown(self) -> None:
"""Causes on_shutdown signal
Should be called before cleanup()
"""
await self.on_shutdown.send(self)
async def cleanup(self) -> None:
"""Causes on_cleanup signal
Should be called after shutdown()
"""
if self.on_cleanup.frozen:
await self.on_cleanup.send(self)
else:
# If an exception occurs in startup, ensure cleanup contexts are completed.
await self._cleanup_ctx._on_cleanup(self)
def _make_request(
self,
message: RawRequestMessage,
payload: StreamReader,
protocol: RequestHandler,
writer: AbstractStreamWriter,
task: "asyncio.Task[None]",
_cls: Type[Request] = Request,
) -> Request:
return _cls(
message,
payload,
protocol,
writer,
task,
self._loop,
client_max_size=self._client_max_size,
)
def _prepare_middleware(self) -> Iterator[Tuple[Middleware, bool]]:
for m in reversed(self._middlewares):
if getattr(m, "__middleware_version__", None) == 1:
yield m, True
else:
warnings.warn(
'old-style middleware "{!r}" deprecated, ' "see #2252".format(m),
DeprecationWarning,
stacklevel=2,
)
yield m, False
yield _fix_request_current_app(self), True
async def _handle(self, request: Request) -> StreamResponse:
loop = asyncio.get_event_loop()
debug = loop.get_debug()
match_info = await self._router.resolve(request)
if debug: # pragma: no cover
if not isinstance(match_info, AbstractMatchInfo):
raise TypeError(
"match_info should be AbstractMatchInfo "
"instance, not {!r}".format(match_info)
)
match_info.add_app(self)
match_info.freeze()
resp = None
request._match_info = match_info
expect = request.headers.get(hdrs.EXPECT)
if expect:
resp = await match_info.expect_handler(request)
await request.writer.drain()
if resp is None:
handler = match_info.handler
if self._run_middlewares:
for app in match_info.apps[::-1]:
for m, new_style in app._middlewares_handlers: # type: ignore[union-attr]
if new_style:
handler = update_wrapper(
partial(m, handler=handler), handler
)
else:
handler = await m(app, handler) # type: ignore[arg-type,assignment]
resp = await handler(request)
return resp
def __call__(self) -> "Application":
"""gunicorn compatibility"""
return self
def __repr__(self) -> str:
return f"<Application 0x{id(self):x}>"
def __bool__(self) -> bool:
return True
class CleanupError(RuntimeError):
@property
def exceptions(self) -> List[BaseException]:
return cast(List[BaseException], self.args[1])
if TYPE_CHECKING: # pragma: no cover
_CleanupContextBase = FrozenList[Callable[[Application], AsyncIterator[None]]]
else:
_CleanupContextBase = FrozenList
class CleanupContext(_CleanupContextBase):
def __init__(self) -> None:
super().__init__()
self._exits: List[AsyncIterator[None]] = []
async def _on_startup(self, app: Application) -> None:
for cb in self:
it = cb(app).__aiter__()
await it.__anext__()
self._exits.append(it)
async def _on_cleanup(self, app: Application) -> None:
errors = []
for it in reversed(self._exits):
try:
await it.__anext__()
except StopAsyncIteration:
pass
except Exception as exc:
errors.append(exc)
else:
errors.append(RuntimeError(f"{it!r} has more than one 'yield'"))
if errors:
if len(errors) == 1:
raise errors[0]
else:
raise CleanupError("Multiple errors on cleanup stage", errors)

452
.venv/Lib/site-packages/aiohttp/web_exceptions.py Normal file
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@ -0,0 +1,452 @@
import warnings
from typing import Any, Dict, Iterable, List, Optional, Set # noqa
from yarl import URL
from .typedefs import LooseHeaders, StrOrURL
from .web_response import Response
__all__ = (
"HTTPException",
"HTTPError",
"HTTPRedirection",
"HTTPSuccessful",
"HTTPOk",
"HTTPCreated",
"HTTPAccepted",
"HTTPNonAuthoritativeInformation",
"HTTPNoContent",
"HTTPResetContent",
"HTTPPartialContent",
"HTTPMove",
"HTTPMultipleChoices",
"HTTPMovedPermanently",
"HTTPFound",
"HTTPSeeOther",
"HTTPNotModified",
"HTTPUseProxy",
"HTTPTemporaryRedirect",
"HTTPPermanentRedirect",
"HTTPClientError",
"HTTPBadRequest",
"HTTPUnauthorized",
"HTTPPaymentRequired",
"HTTPForbidden",
"HTTPNotFound",
"HTTPMethodNotAllowed",
"HTTPNotAcceptable",
"HTTPProxyAuthenticationRequired",
"HTTPRequestTimeout",
"HTTPConflict",
"HTTPGone",
"HTTPLengthRequired",
"HTTPPreconditionFailed",
"HTTPRequestEntityTooLarge",
"HTTPRequestURITooLong",
"HTTPUnsupportedMediaType",
"HTTPRequestRangeNotSatisfiable",
"HTTPExpectationFailed",
"HTTPMisdirectedRequest",
"HTTPUnprocessableEntity",
"HTTPFailedDependency",
"HTTPUpgradeRequired",
"HTTPPreconditionRequired",
"HTTPTooManyRequests",
"HTTPRequestHeaderFieldsTooLarge",
"HTTPUnavailableForLegalReasons",
"HTTPServerError",
"HTTPInternalServerError",
"HTTPNotImplemented",
"HTTPBadGateway",
"HTTPServiceUnavailable",
"HTTPGatewayTimeout",
"HTTPVersionNotSupported",
"HTTPVariantAlsoNegotiates",
"HTTPInsufficientStorage",
"HTTPNotExtended",
"HTTPNetworkAuthenticationRequired",
)
class NotAppKeyWarning(UserWarning):
"""Warning when not using AppKey in Application."""
############################################################
# HTTP Exceptions
############################################################
class HTTPException(Response, Exception):
# You should set in subclasses:
# status = 200
status_code = -1
empty_body = False
__http_exception__ = True
def __init__(
self,
*,
headers: Optional[LooseHeaders] = None,
reason: Optional[str] = None,
body: Any = None,
text: Optional[str] = None,
content_type: Optional[str] = None,
) -> None:
if body is not None:
warnings.warn(
"body argument is deprecated for http web exceptions",
DeprecationWarning,
)
Response.__init__(
self,
status=self.status_code,
headers=headers,
reason=reason,
body=body,
text=text,
content_type=content_type,
)
Exception.__init__(self, self.reason)
if self.body is None and not self.empty_body:
self.text = f"{self.status}: {self.reason}"
def __bool__(self) -> bool:
return True
class HTTPError(HTTPException):
"""Base class for exceptions with status codes in the 400s and 500s."""
class HTTPRedirection(HTTPException):
"""Base class for exceptions with status codes in the 300s."""
class HTTPSuccessful(HTTPException):
"""Base class for exceptions with status codes in the 200s."""
class HTTPOk(HTTPSuccessful):
status_code = 200
class HTTPCreated(HTTPSuccessful):
status_code = 201
class HTTPAccepted(HTTPSuccessful):
status_code = 202
class HTTPNonAuthoritativeInformation(HTTPSuccessful):
status_code = 203
class HTTPNoContent(HTTPSuccessful):
status_code = 204
empty_body = True
class HTTPResetContent(HTTPSuccessful):
status_code = 205
empty_body = True
class HTTPPartialContent(HTTPSuccessful):
status_code = 206
############################################################
# 3xx redirection
############################################################
class HTTPMove(HTTPRedirection):
def __init__(
self,
location: StrOrURL,
*,
headers: Optional[LooseHeaders] = None,
reason: Optional[str] = None,
body: Any = None,
text: Optional[str] = None,
content_type: Optional[str] = None,
) -> None:
if not location:
raise ValueError("HTTP redirects need a location to redirect to.")
super().__init__(
headers=headers,
reason=reason,
body=body,
text=text,
content_type=content_type,
)
self.headers["Location"] = str(URL(location))
self.location = location
class HTTPMultipleChoices(HTTPMove):
status_code = 300
class HTTPMovedPermanently(HTTPMove):
status_code = 301
class HTTPFound(HTTPMove):
status_code = 302
# This one is safe after a POST (the redirected location will be
# retrieved with GET):
class HTTPSeeOther(HTTPMove):
status_code = 303
class HTTPNotModified(HTTPRedirection):
# FIXME: this should include a date or etag header
status_code = 304
empty_body = True
class HTTPUseProxy(HTTPMove):
# Not a move, but looks a little like one
status_code = 305
class HTTPTemporaryRedirect(HTTPMove):
status_code = 307
class HTTPPermanentRedirect(HTTPMove):
status_code = 308
############################################################
# 4xx client error
############################################################
class HTTPClientError(HTTPError):
pass
class HTTPBadRequest(HTTPClientError):
status_code = 400
class HTTPUnauthorized(HTTPClientError):
status_code = 401
class HTTPPaymentRequired(HTTPClientError):
status_code = 402
class HTTPForbidden(HTTPClientError):
status_code = 403
class HTTPNotFound(HTTPClientError):
status_code = 404
class HTTPMethodNotAllowed(HTTPClientError):
status_code = 405
def __init__(
self,
method: str,
allowed_methods: Iterable[str],
*,
headers: Optional[LooseHeaders] = None,
reason: Optional[str] = None,
body: Any = None,
text: Optional[str] = None,
content_type: Optional[str] = None,
) -> None:
allow = ",".join(sorted(allowed_methods))
super().__init__(
headers=headers,
reason=reason,
body=body,
text=text,
content_type=content_type,
)
self.headers["Allow"] = allow
self.allowed_methods: Set[str] = set(allowed_methods)
self.method = method.upper()
class HTTPNotAcceptable(HTTPClientError):
status_code = 406
class HTTPProxyAuthenticationRequired(HTTPClientError):
status_code = 407
class HTTPRequestTimeout(HTTPClientError):
status_code = 408
class HTTPConflict(HTTPClientError):
status_code = 409
class HTTPGone(HTTPClientError):
status_code = 410
class HTTPLengthRequired(HTTPClientError):
status_code = 411
class HTTPPreconditionFailed(HTTPClientError):
status_code = 412
class HTTPRequestEntityTooLarge(HTTPClientError):
status_code = 413
def __init__(self, max_size: float, actual_size: float, **kwargs: Any) -> None:
kwargs.setdefault(
"text",
"Maximum request body size {} exceeded, "
"actual body size {}".format(max_size, actual_size),
)
super().__init__(**kwargs)
class HTTPRequestURITooLong(HTTPClientError):
status_code = 414
class HTTPUnsupportedMediaType(HTTPClientError):
status_code = 415
class HTTPRequestRangeNotSatisfiable(HTTPClientError):
status_code = 416
class HTTPExpectationFailed(HTTPClientError):
status_code = 417
class HTTPMisdirectedRequest(HTTPClientError):
status_code = 421
class HTTPUnprocessableEntity(HTTPClientError):
status_code = 422
class HTTPFailedDependency(HTTPClientError):
status_code = 424
class HTTPUpgradeRequired(HTTPClientError):
status_code = 426
class HTTPPreconditionRequired(HTTPClientError):
status_code = 428
class HTTPTooManyRequests(HTTPClientError):
status_code = 429
class HTTPRequestHeaderFieldsTooLarge(HTTPClientError):
status_code = 431
class HTTPUnavailableForLegalReasons(HTTPClientError):
status_code = 451
def __init__(
self,
link: Optional[StrOrURL],
*,
headers: Optional[LooseHeaders] = None,
reason: Optional[str] = None,
body: Any = None,
text: Optional[str] = None,
content_type: Optional[str] = None,
) -> None:
super().__init__(
headers=headers,
reason=reason,
body=body,
text=text,
content_type=content_type,
)
self._link = None
if link:
self._link = URL(link)
self.headers["Link"] = f'<{str(self._link)}>; rel="blocked-by"'
@property
def link(self) -> Optional[URL]:
return self._link
############################################################
# 5xx Server Error
############################################################
# Response status codes beginning with the digit "5" indicate cases in
# which the server is aware that it has erred or is incapable of
# performing the request. Except when responding to a HEAD request, the
# server SHOULD include an entity containing an explanation of the error
# situation, and whether it is a temporary or permanent condition. User
# agents SHOULD display any included entity to the user. These response
# codes are applicable to any request method.
class HTTPServerError(HTTPError):
pass
class HTTPInternalServerError(HTTPServerError):
status_code = 500
class HTTPNotImplemented(HTTPServerError):
status_code = 501
class HTTPBadGateway(HTTPServerError):
status_code = 502
class HTTPServiceUnavailable(HTTPServerError):
status_code = 503
class HTTPGatewayTimeout(HTTPServerError):
status_code = 504
class HTTPVersionNotSupported(HTTPServerError):
status_code = 505
class HTTPVariantAlsoNegotiates(HTTPServerError):
status_code = 506
class HTTPInsufficientStorage(HTTPServerError):
status_code = 507
class HTTPNotExtended(HTTPServerError):
status_code = 510
class HTTPNetworkAuthenticationRequired(HTTPServerError):
status_code = 511

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import asyncio
import mimetypes
import os
import pathlib
from typing import ( # noqa
IO,
TYPE_CHECKING,
Any,
Awaitable,
Callable,
Final,
Iterator,
List,
Optional,
Tuple,
Union,
cast,
)
from . import hdrs
from .abc import AbstractStreamWriter
from .helpers import ETAG_ANY, ETag, must_be_empty_body
from .typedefs import LooseHeaders, PathLike
from .web_exceptions import (
HTTPNotModified,
HTTPPartialContent,
HTTPPreconditionFailed,
HTTPRequestRangeNotSatisfiable,
)
from .web_response import StreamResponse
__all__ = ("FileResponse",)
if TYPE_CHECKING: # pragma: no cover
from .web_request import BaseRequest
_T_OnChunkSent = Optional[Callable[[bytes], Awaitable[None]]]
NOSENDFILE: Final[bool] = bool(os.environ.get("AIOHTTP_NOSENDFILE"))
class FileResponse(StreamResponse):
"""A response object can be used to send files."""
def __init__(
self,
path: PathLike,
chunk_size: int = 256 * 1024,
status: int = 200,
reason: Optional[str] = None,
headers: Optional[LooseHeaders] = None,
) -> None:
super().__init__(status=status, reason=reason, headers=headers)
self._path = pathlib.Path(path)
self._chunk_size = chunk_size
async def _sendfile_fallback(
self, writer: AbstractStreamWriter, fobj: IO[Any], offset: int, count: int
) -> AbstractStreamWriter:
# To keep memory usage low,fobj is transferred in chunks
# controlled by the constructor's chunk_size argument.
chunk_size = self._chunk_size
loop = asyncio.get_event_loop()
await loop.run_in_executor(None, fobj.seek, offset)
chunk = await loop.run_in_executor(None, fobj.read, chunk_size)
while chunk:
await writer.write(chunk)
count = count - chunk_size
if count <= 0:
break
chunk = await loop.run_in_executor(None, fobj.read, min(chunk_size, count))
await writer.drain()
return writer
async def _sendfile(
self, request: "BaseRequest", fobj: IO[Any], offset: int, count: int
) -> AbstractStreamWriter:
writer = await super().prepare(request)
assert writer is not None
if NOSENDFILE or self.compression:
return await self._sendfile_fallback(writer, fobj, offset, count)
loop = request._loop
transport = request.transport
assert transport is not None
try:
await loop.sendfile(transport, fobj, offset, count)
except NotImplementedError:
return await self._sendfile_fallback(writer, fobj, offset, count)
await super().write_eof()
return writer
@staticmethod
def _strong_etag_match(etag_value: str, etags: Tuple[ETag, ...]) -> bool:
if len(etags) == 1 and etags[0].value == ETAG_ANY:
return True
return any(etag.value == etag_value for etag in etags if not etag.is_weak)
async def _not_modified(
self, request: "BaseRequest", etag_value: str, last_modified: float
) -> Optional[AbstractStreamWriter]:
self.set_status(HTTPNotModified.status_code)
self._length_check = False
self.etag = etag_value # type: ignore[assignment]
self.last_modified = last_modified # type: ignore[assignment]
# Delete any Content-Length headers provided by user. HTTP 304
# should always have empty response body
return await super().prepare(request)
async def _precondition_failed(
self, request: "BaseRequest"
) -> Optional[AbstractStreamWriter]:
self.set_status(HTTPPreconditionFailed.status_code)
self.content_length = 0
return await super().prepare(request)
async def prepare(self, request: "BaseRequest") -> Optional[AbstractStreamWriter]:
filepath = self._path
gzip = False
if "gzip" in request.headers.get(hdrs.ACCEPT_ENCODING, ""):
gzip_path = filepath.with_name(filepath.name + ".gz")
if gzip_path.is_file():
filepath = gzip_path
gzip = True
loop = asyncio.get_event_loop()
st: os.stat_result = await loop.run_in_executor(None, filepath.stat)
etag_value = f"{st.st_mtime_ns:x}-{st.st_size:x}"
last_modified = st.st_mtime
# https://tools.ietf.org/html/rfc7232#section-6
ifmatch = request.if_match
if ifmatch is not None and not self._strong_etag_match(etag_value, ifmatch):
return await self._precondition_failed(request)
unmodsince = request.if_unmodified_since
if (
unmodsince is not None
and ifmatch is None
and st.st_mtime > unmodsince.timestamp()
):
return await self._precondition_failed(request)
ifnonematch = request.if_none_match
if ifnonematch is not None and self._strong_etag_match(etag_value, ifnonematch):
return await self._not_modified(request, etag_value, last_modified)
modsince = request.if_modified_since
if (
modsince is not None
and ifnonematch is None
and st.st_mtime <= modsince.timestamp()
):
return await self._not_modified(request, etag_value, last_modified)
if hdrs.CONTENT_TYPE not in self.headers:
ct, encoding = mimetypes.guess_type(str(filepath))
if not ct:
ct = "application/octet-stream"
should_set_ct = True
else:
encoding = "gzip" if gzip else None
should_set_ct = False
status = self._status
file_size = st.st_size
count = file_size
start = None
ifrange = request.if_range
if ifrange is None or st.st_mtime <= ifrange.timestamp():
# If-Range header check:
# condition = cached date >= last modification date
# return 206 if True else 200.
# if False:
# Range header would not be processed, return 200
# if True but Range header missing
# return 200
try:
rng = request.http_range
start = rng.start
end = rng.stop
except ValueError:
# https://tools.ietf.org/html/rfc7233:
# A server generating a 416 (Range Not Satisfiable) response to
# a byte-range request SHOULD send a Content-Range header field
# with an unsatisfied-range value.
# The complete-length in a 416 response indicates the current
# length of the selected representation.
#
# Will do the same below. Many servers ignore this and do not
# send a Content-Range header with HTTP 416
self.headers[hdrs.CONTENT_RANGE] = f"bytes */{file_size}"
self.set_status(HTTPRequestRangeNotSatisfiable.status_code)
return await super().prepare(request)
# If a range request has been made, convert start, end slice
# notation into file pointer offset and count
if start is not None or end is not None:
if start < 0 and end is None: # return tail of file
start += file_size
if start < 0:
# if Range:bytes=-1000 in request header but file size
# is only 200, there would be trouble without this
start = 0
count = file_size - start
else:
# rfc7233:If the last-byte-pos value is
# absent, or if the value is greater than or equal to
# the current length of the representation data,
# the byte range is interpreted as the remainder
# of the representation (i.e., the server replaces the
# value of last-byte-pos with a value that is one less than
# the current length of the selected representation).
count = (
min(end if end is not None else file_size, file_size) - start
)
if start >= file_size:
# HTTP 416 should be returned in this case.
#
# According to https://tools.ietf.org/html/rfc7233:
# If a valid byte-range-set includes at least one
# byte-range-spec with a first-byte-pos that is less than
# the current length of the representation, or at least one
# suffix-byte-range-spec with a non-zero suffix-length,
# then the byte-range-set is satisfiable. Otherwise, the
# byte-range-set is unsatisfiable.
self.headers[hdrs.CONTENT_RANGE] = f"bytes */{file_size}"
self.set_status(HTTPRequestRangeNotSatisfiable.status_code)
return await super().prepare(request)
status = HTTPPartialContent.status_code
# Even though you are sending the whole file, you should still
# return a HTTP 206 for a Range request.
self.set_status(status)
if should_set_ct:
self.content_type = ct # type: ignore[assignment]
if encoding:
self.headers[hdrs.CONTENT_ENCODING] = encoding
if gzip:
self.headers[hdrs.VARY] = hdrs.ACCEPT_ENCODING
self.etag = etag_value # type: ignore[assignment]
self.last_modified = st.st_mtime # type: ignore[assignment]
self.content_length = count
self.headers[hdrs.ACCEPT_RANGES] = "bytes"
real_start = cast(int, start)
if status == HTTPPartialContent.status_code:
self.headers[hdrs.CONTENT_RANGE] = "bytes {}-{}/{}".format(
real_start, real_start + count - 1, file_size
)
# If we are sending 0 bytes calling sendfile() will throw a ValueError
if count == 0 or must_be_empty_body(request.method, self.status):
return await super().prepare(request)
fobj = await loop.run_in_executor(None, filepath.open, "rb")
if start: # be aware that start could be None or int=0 here.
offset = start
else:
offset = 0
try:
return await self._sendfile(request, fobj, offset, count)
finally:
await asyncio.shield(loop.run_in_executor(None, fobj.close))

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import datetime
import functools
import logging
import os
import re
import time as time_mod
from collections import namedtuple
from typing import Any, Callable, Dict, Iterable, List, Tuple # noqa
from .abc import AbstractAccessLogger
from .web_request import BaseRequest
from .web_response import StreamResponse
KeyMethod = namedtuple("KeyMethod", "key method")
class AccessLogger(AbstractAccessLogger):
"""Helper object to log access.
Usage:
log = logging.getLogger("spam")
log_format = "%a %{User-Agent}i"
access_logger = AccessLogger(log, log_format)
access_logger.log(request, response, time)
Format:
%% The percent sign
%a Remote IP-address (IP-address of proxy if using reverse proxy)
%t Time when the request was started to process
%P The process ID of the child that serviced the request
%r First line of request
%s Response status code
%b Size of response in bytes, including HTTP headers
%T Time taken to serve the request, in seconds
%Tf Time taken to serve the request, in seconds with floating fraction
in .06f format
%D Time taken to serve the request, in microseconds
%{FOO}i request.headers['FOO']
%{FOO}o response.headers['FOO']
%{FOO}e os.environ['FOO']
"""
LOG_FORMAT_MAP = {
"a": "remote_address",
"t": "request_start_time",
"P": "process_id",
"r": "first_request_line",
"s": "response_status",
"b": "response_size",
"T": "request_time",
"Tf": "request_time_frac",
"D": "request_time_micro",
"i": "request_header",
"o": "response_header",
}
LOG_FORMAT = '%a %t "%r" %s %b "%{Referer}i" "%{User-Agent}i"'
FORMAT_RE = re.compile(r"%(\{([A-Za-z0-9\-_]+)\}([ioe])|[atPrsbOD]|Tf?)")
CLEANUP_RE = re.compile(r"(%[^s])")
_FORMAT_CACHE: Dict[str, Tuple[str, List[KeyMethod]]] = {}
def __init__(self, logger: logging.Logger, log_format: str = LOG_FORMAT) -> None:
"""Initialise the logger.
logger is a logger object to be used for logging.
log_format is a string with apache compatible log format description.
"""
super().__init__(logger, log_format=log_format)
_compiled_format = AccessLogger._FORMAT_CACHE.get(log_format)
if not _compiled_format:
_compiled_format = self.compile_format(log_format)
AccessLogger._FORMAT_CACHE[log_format] = _compiled_format
self._log_format, self._methods = _compiled_format
def compile_format(self, log_format: str) -> Tuple[str, List[KeyMethod]]:
"""Translate log_format into form usable by modulo formatting
All known atoms will be replaced with %s
Also methods for formatting of those atoms will be added to
_methods in appropriate order
For example we have log_format = "%a %t"
This format will be translated to "%s %s"
Also contents of _methods will be
[self._format_a, self._format_t]
These method will be called and results will be passed
to translated string format.
Each _format_* method receive 'args' which is list of arguments
given to self.log
Exceptions are _format_e, _format_i and _format_o methods which
also receive key name (by functools.partial)
"""
# list of (key, method) tuples, we don't use an OrderedDict as users
# can repeat the same key more than once
methods = list()
for atom in self.FORMAT_RE.findall(log_format):
if atom[1] == "":
format_key1 = self.LOG_FORMAT_MAP[atom[0]]
m = getattr(AccessLogger, "_format_%s" % atom[0])
key_method = KeyMethod(format_key1, m)
else:
format_key2 = (self.LOG_FORMAT_MAP[atom[2]], atom[1])
m = getattr(AccessLogger, "_format_%s" % atom[2])
key_method = KeyMethod(format_key2, functools.partial(m, atom[1]))
methods.append(key_method)
log_format = self.FORMAT_RE.sub(r"%s", log_format)
log_format = self.CLEANUP_RE.sub(r"%\1", log_format)
return log_format, methods
@staticmethod
def _format_i(
key: str, request: BaseRequest, response: StreamResponse, time: float
) -> str:
if request is None:
return "(no headers)"
# suboptimal, make istr(key) once
return request.headers.get(key, "-")
@staticmethod
def _format_o(
key: str, request: BaseRequest, response: StreamResponse, time: float
) -> str:
# suboptimal, make istr(key) once
return response.headers.get(key, "-")
@staticmethod
def _format_a(request: BaseRequest, response: StreamResponse, time: float) -> str:
if request is None:
return "-"
ip = request.remote
return ip if ip is not None else "-"
@staticmethod
def _format_t(request: BaseRequest, response: StreamResponse, time: float) -> str:
tz = datetime.timezone(datetime.timedelta(seconds=-time_mod.timezone))
now = datetime.datetime.now(tz)
start_time = now - datetime.timedelta(seconds=time)
return start_time.strftime("[%d/%b/%Y:%H:%M:%S %z]")
@staticmethod
def _format_P(request: BaseRequest, response: StreamResponse, time: float) -> str:
return "<%s>" % os.getpid()
@staticmethod
def _format_r(request: BaseRequest, response: StreamResponse, time: float) -> str:
if request is None:
return "-"
return "{} {} HTTP/{}.{}".format(
request.method,
request.path_qs,
request.version.major,
request.version.minor,
)
@staticmethod
def _format_s(request: BaseRequest, response: StreamResponse, time: float) -> int:
return response.status
@staticmethod
def _format_b(request: BaseRequest, response: StreamResponse, time: float) -> int:
return response.body_length
@staticmethod
def _format_T(request: BaseRequest, response: StreamResponse, time: float) -> str:
return str(round(time))
@staticmethod
def _format_Tf(request: BaseRequest, response: StreamResponse, time: float) -> str:
return "%06f" % time
@staticmethod
def _format_D(request: BaseRequest, response: StreamResponse, time: float) -> str:
return str(round(time * 1000000))
def _format_line(
self, request: BaseRequest, response: StreamResponse, time: float
) -> Iterable[Tuple[str, Callable[[BaseRequest, StreamResponse, float], str]]]:
return [(key, method(request, response, time)) for key, method in self._methods]
def log(self, request: BaseRequest, response: StreamResponse, time: float) -> None:
if not self.logger.isEnabledFor(logging.INFO):
# Avoid formatting the log line if it will not be emitted.
return
try:
fmt_info = self._format_line(request, response, time)
values = list()
extra = dict()
for key, value in fmt_info:
values.append(value)
if key.__class__ is str:
extra[key] = value
else:
k1, k2 = key # type: ignore[misc]
dct = extra.get(k1, {}) # type: ignore[var-annotated,has-type]
dct[k2] = value # type: ignore[index,has-type]
extra[k1] = dct # type: ignore[has-type,assignment]
self.logger.info(self._log_format % tuple(values), extra=extra)
except Exception:
self.logger.exception("Error in logging")

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import re
from typing import TYPE_CHECKING, Tuple, Type, TypeVar
from .typedefs import Handler, Middleware
from .web_exceptions import HTTPMove, HTTPPermanentRedirect
from .web_request import Request
from .web_response import StreamResponse
from .web_urldispatcher import SystemRoute
__all__ = (
"middleware",
"normalize_path_middleware",
)
if TYPE_CHECKING: # pragma: no cover
from .web_app import Application
_Func = TypeVar("_Func")
async def _check_request_resolves(request: Request, path: str) -> Tuple[bool, Request]:
alt_request = request.clone(rel_url=path)
match_info = await request.app.router.resolve(alt_request)
alt_request._match_info = match_info
if match_info.http_exception is None:
return True, alt_request
return False, request
def middleware(f: _Func) -> _Func:
f.__middleware_version__ = 1 # type: ignore[attr-defined]
return f
def normalize_path_middleware(
*,
append_slash: bool = True,
remove_slash: bool = False,
merge_slashes: bool = True,
redirect_class: Type[HTTPMove] = HTTPPermanentRedirect,
) -> Middleware:
"""Factory for producing a middleware that normalizes the path of a request.
Normalizing means:
- Add or remove a trailing slash to the path.
- Double slashes are replaced by one.
The middleware returns as soon as it finds a path that resolves
correctly. The order if both merge and append/remove are enabled is
1) merge slashes
2) append/remove slash
3) both merge slashes and append/remove slash.
If the path resolves with at least one of those conditions, it will
redirect to the new path.
Only one of `append_slash` and `remove_slash` can be enabled. If both
are `True` the factory will raise an assertion error
If `append_slash` is `True` the middleware will append a slash when
needed. If a resource is defined with trailing slash and the request
comes without it, it will append it automatically.
If `remove_slash` is `True`, `append_slash` must be `False`. When enabled
the middleware will remove trailing slashes and redirect if the resource
is defined
If merge_slashes is True, merge multiple consecutive slashes in the
path into one.
"""
correct_configuration = not (append_slash and remove_slash)
assert correct_configuration, "Cannot both remove and append slash"
@middleware
async def impl(request: Request, handler: Handler) -> StreamResponse:
if isinstance(request.match_info.route, SystemRoute):
paths_to_check = []
if "?" in request.raw_path:
path, query = request.raw_path.split("?", 1)
query = "?" + query
else:
query = ""
path = request.raw_path
if merge_slashes:
paths_to_check.append(re.sub("//+", "/", path))
if append_slash and not request.path.endswith("/"):
paths_to_check.append(path + "/")
if remove_slash and request.path.endswith("/"):
paths_to_check.append(path[:-1])
if merge_slashes and append_slash:
paths_to_check.append(re.sub("//+", "/", path + "/"))
if merge_slashes and remove_slash:
merged_slashes = re.sub("//+", "/", path)
paths_to_check.append(merged_slashes[:-1])
for path in paths_to_check:
path = re.sub("^//+", "/", path) # SECURITY: GHSA-v6wp-4m6f-gcjg
resolves, request = await _check_request_resolves(request, path)
if resolves:
raise redirect_class(request.raw_path + query)
return await handler(request)
return impl
def _fix_request_current_app(app: "Application") -> Middleware:
@middleware
async def impl(request: Request, handler: Handler) -> StreamResponse:
with request.match_info.set_current_app(app):
return await handler(request)
return impl

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import asyncio
import asyncio.streams
import traceback
import warnings
from collections import deque
from contextlib import suppress
from html import escape as html_escape
from http import HTTPStatus
from logging import Logger
from typing import (
TYPE_CHECKING,
Any,
Awaitable,
Callable,
Deque,
Optional,
Sequence,
Tuple,
Type,
Union,
cast,
)
import attr
import yarl
from .abc import AbstractAccessLogger, AbstractStreamWriter
from .base_protocol import BaseProtocol
from .helpers import ceil_timeout
from .http import (
HttpProcessingError,
HttpRequestParser,
HttpVersion10,
RawRequestMessage,
StreamWriter,
)
from .log import access_logger, server_logger
from .streams import EMPTY_PAYLOAD, StreamReader
from .tcp_helpers import tcp_keepalive
from .web_exceptions import HTTPException
from .web_log import AccessLogger
from .web_request import BaseRequest
from .web_response import Response, StreamResponse
__all__ = ("RequestHandler", "RequestPayloadError", "PayloadAccessError")
if TYPE_CHECKING: # pragma: no cover
from .web_server import Server
_RequestFactory = Callable[
[
RawRequestMessage,
StreamReader,
"RequestHandler",
AbstractStreamWriter,
"asyncio.Task[None]",
],
BaseRequest,
]
_RequestHandler = Callable[[BaseRequest], Awaitable[StreamResponse]]
ERROR = RawRequestMessage(
"UNKNOWN",
"/",
HttpVersion10,
{}, # type: ignore[arg-type]
{}, # type: ignore[arg-type]
True,
None,
False,
False,
yarl.URL("/"),
)
class RequestPayloadError(Exception):
"""Payload parsing error."""
class PayloadAccessError(Exception):
"""Payload was accessed after response was sent."""
@attr.s(auto_attribs=True, frozen=True, slots=True)
class _ErrInfo:
status: int
exc: BaseException
message: str
_MsgType = Tuple[Union[RawRequestMessage, _ErrInfo], StreamReader]
class RequestHandler(BaseProtocol):
"""HTTP protocol implementation.
RequestHandler handles incoming HTTP request. It reads request line,
request headers and request payload and calls handle_request() method.
By default it always returns with 404 response.
RequestHandler handles errors in incoming request, like bad
status line, bad headers or incomplete payload. If any error occurs,
connection gets closed.
keepalive_timeout -- number of seconds before closing
keep-alive connection
tcp_keepalive -- TCP keep-alive is on, default is on
debug -- enable debug mode
logger -- custom logger object
access_log_class -- custom class for access_logger
access_log -- custom logging object
access_log_format -- access log format string
loop -- Optional event loop
max_line_size -- Optional maximum header line size
max_field_size -- Optional maximum header field size
max_headers -- Optional maximum header size
timeout_ceil_threshold -- Optional value to specify
threshold to ceil() timeout
values
"""
KEEPALIVE_RESCHEDULE_DELAY = 1
__slots__ = (
"_request_count",
"_keepalive",
"_manager",
"_request_handler",
"_request_factory",
"_tcp_keepalive",
"_keepalive_time",
"_keepalive_handle",
"_keepalive_timeout",
"_lingering_time",
"_messages",
"_message_tail",
"_waiter",
"_task_handler",
"_upgrade",
"_payload_parser",
"_request_parser",
"_reading_paused",
"logger",
"debug",
"access_log",
"access_logger",
"_close",
"_force_close",
"_current_request",
"_timeout_ceil_threshold",
)
def __init__(
self,
manager: "Server",
*,
loop: asyncio.AbstractEventLoop,
keepalive_timeout: float = 75.0, # NGINX default is 75 secs
tcp_keepalive: bool = True,
logger: Logger = server_logger,
access_log_class: Type[AbstractAccessLogger] = AccessLogger,
access_log: Logger = access_logger,
access_log_format: str = AccessLogger.LOG_FORMAT,
debug: bool = False,
max_line_size: int = 8190,
max_headers: int = 32768,
max_field_size: int = 8190,
lingering_time: float = 10.0,
read_bufsize: int = 2**16,
auto_decompress: bool = True,
timeout_ceil_threshold: float = 5,
):
super().__init__(loop)
self._request_count = 0
self._keepalive = False
self._current_request: Optional[BaseRequest] = None
self._manager: Optional[Server] = manager
self._request_handler: Optional[_RequestHandler] = manager.request_handler
self._request_factory: Optional[_RequestFactory] = manager.request_factory
self._tcp_keepalive = tcp_keepalive
# placeholder to be replaced on keepalive timeout setup
self._keepalive_time = 0.0
self._keepalive_handle: Optional[asyncio.Handle] = None
self._keepalive_timeout = keepalive_timeout
self._lingering_time = float(lingering_time)
self._messages: Deque[_MsgType] = deque()
self._message_tail = b""
self._waiter: Optional[asyncio.Future[None]] = None
self._task_handler: Optional[asyncio.Task[None]] = None
self._upgrade = False
self._payload_parser: Any = None
self._request_parser: Optional[HttpRequestParser] = HttpRequestParser(
self,
loop,
read_bufsize,
max_line_size=max_line_size,
max_field_size=max_field_size,
max_headers=max_headers,
payload_exception=RequestPayloadError,
auto_decompress=auto_decompress,
)
self._timeout_ceil_threshold: float = 5
try:
self._timeout_ceil_threshold = float(timeout_ceil_threshold)
except (TypeError, ValueError):
pass
self.logger = logger
self.debug = debug
self.access_log = access_log
if access_log:
self.access_logger: Optional[AbstractAccessLogger] = access_log_class(
access_log, access_log_format
)
else:
self.access_logger = None
self._close = False
self._force_close = False
def __repr__(self) -> str:
return "<{} {}>".format(
self.__class__.__name__,
"connected" if self.transport is not None else "disconnected",
)
@property
def keepalive_timeout(self) -> float:
return self._keepalive_timeout
async def shutdown(self, timeout: Optional[float] = 15.0) -> None:
"""Do worker process exit preparations.
We need to clean up everything and stop accepting requests.
It is especially important for keep-alive connections.
"""
self._force_close = True
if self._keepalive_handle is not None:
self._keepalive_handle.cancel()
if self._waiter:
self._waiter.cancel()
# wait for handlers
with suppress(asyncio.CancelledError, asyncio.TimeoutError):
async with ceil_timeout(timeout):
if self._current_request is not None:
self._current_request._cancel(asyncio.CancelledError())
if self._task_handler is not None and not self._task_handler.done():
await self._task_handler
# force-close non-idle handler
if self._task_handler is not None:
self._task_handler.cancel()
if self.transport is not None:
self.transport.close()
self.transport = None
def connection_made(self, transport: asyncio.BaseTransport) -> None:
super().connection_made(transport)
real_transport = cast(asyncio.Transport, transport)
if self._tcp_keepalive:
tcp_keepalive(real_transport)
self._task_handler = self._loop.create_task(self.start())
assert self._manager is not None
self._manager.connection_made(self, real_transport)
def connection_lost(self, exc: Optional[BaseException]) -> None:
if self._manager is None:
return
self._manager.connection_lost(self, exc)
super().connection_lost(exc)
# Grab value before setting _manager to None.
handler_cancellation = self._manager.handler_cancellation
self._manager = None
self._force_close = True
self._request_factory = None
self._request_handler = None
self._request_parser = None
if self._keepalive_handle is not None:
self._keepalive_handle.cancel()
if self._current_request is not None:
if exc is None:
exc = ConnectionResetError("Connection lost")
self._current_request._cancel(exc)
if self._waiter is not None:
self._waiter.cancel()
if handler_cancellation and self._task_handler is not None:
self._task_handler.cancel()
self._task_handler = None
if self._payload_parser is not None:
self._payload_parser.feed_eof()
self._payload_parser = None
def set_parser(self, parser: Any) -> None:
# Actual type is WebReader
assert self._payload_parser is None
self._payload_parser = parser
if self._message_tail:
self._payload_parser.feed_data(self._message_tail)
self._message_tail = b""
def eof_received(self) -> None:
pass
def data_received(self, data: bytes) -> None:
if self._force_close or self._close:
return
# parse http messages
messages: Sequence[_MsgType]
if self._payload_parser is None and not self._upgrade:
assert self._request_parser is not None
try:
messages, upgraded, tail = self._request_parser.feed_data(data)
except HttpProcessingError as exc:
messages = [
(_ErrInfo(status=400, exc=exc, message=exc.message), EMPTY_PAYLOAD)
]
upgraded = False
tail = b""
for msg, payload in messages or ():
self._request_count += 1
self._messages.append((msg, payload))
waiter = self._waiter
if messages and waiter is not None and not waiter.done():
# don't set result twice
waiter.set_result(None)
self._upgrade = upgraded
if upgraded and tail:
self._message_tail = tail
# no parser, just store
elif self._payload_parser is None and self._upgrade and data:
self._message_tail += data
# feed payload
elif data:
eof, tail = self._payload_parser.feed_data(data)
if eof:
self.close()
def keep_alive(self, val: bool) -> None:
"""Set keep-alive connection mode.
:param bool val: new state.
"""
self._keepalive = val
if self._keepalive_handle:
self._keepalive_handle.cancel()
self._keepalive_handle = None
def close(self) -> None:
"""Close connection.
Stop accepting new pipelining messages and close
connection when handlers done processing messages.
"""
self._close = True
if self._waiter:
self._waiter.cancel()
def force_close(self) -> None:
"""Forcefully close connection."""
self._force_close = True
if self._waiter:
self._waiter.cancel()
if self.transport is not None:
self.transport.close()
self.transport = None
def log_access(
self, request: BaseRequest, response: StreamResponse, time: float
) -> None:
if self.access_logger is not None:
self.access_logger.log(request, response, self._loop.time() - time)
def log_debug(self, *args: Any, **kw: Any) -> None:
if self.debug:
self.logger.debug(*args, **kw)
def log_exception(self, *args: Any, **kw: Any) -> None:
self.logger.exception(*args, **kw)
def _process_keepalive(self) -> None:
if self._force_close or not self._keepalive:
return
next = self._keepalive_time + self._keepalive_timeout
# handler in idle state
if self._waiter:
if self._loop.time() > next:
self.force_close()
return
# not all request handlers are done,
# reschedule itself to next second
self._keepalive_handle = self._loop.call_later(
self.KEEPALIVE_RESCHEDULE_DELAY,
self._process_keepalive,
)
async def _handle_request(
self,
request: BaseRequest,
start_time: float,
request_handler: Callable[[BaseRequest], Awaitable[StreamResponse]],
) -> Tuple[StreamResponse, bool]:
assert self._request_handler is not None
try:
try:
self._current_request = request
resp = await request_handler(request)
finally:
self._current_request = None
except HTTPException as exc:
resp = exc
reset = await self.finish_response(request, resp, start_time)
except asyncio.CancelledError:
raise
except asyncio.TimeoutError as exc:
self.log_debug("Request handler timed out.", exc_info=exc)
resp = self.handle_error(request, 504)
reset = await self.finish_response(request, resp, start_time)
except Exception as exc:
resp = self.handle_error(request, 500, exc)
reset = await self.finish_response(request, resp, start_time)
else:
# Deprecation warning (See #2415)
if getattr(resp, "__http_exception__", False):
warnings.warn(
"returning HTTPException object is deprecated "
"(#2415) and will be removed, "
"please raise the exception instead",
DeprecationWarning,
)
reset = await self.finish_response(request, resp, start_time)
return resp, reset
async def start(self) -> None:
"""Process incoming request.
It reads request line, request headers and request payload, then
calls handle_request() method. Subclass has to override
handle_request(). start() handles various exceptions in request
or response handling. Connection is being closed always unless
keep_alive(True) specified.
"""
loop = self._loop
handler = self._task_handler
assert handler is not None
manager = self._manager
assert manager is not None
keepalive_timeout = self._keepalive_timeout
resp = None
assert self._request_factory is not None
assert self._request_handler is not None
while not self._force_close:
if not self._messages:
try:
# wait for next request
self._waiter = loop.create_future()
await self._waiter
except asyncio.CancelledError:
break
finally:
self._waiter = None
message, payload = self._messages.popleft()
start = loop.time()
manager.requests_count += 1
writer = StreamWriter(self, loop)
if isinstance(message, _ErrInfo):
# make request_factory work
request_handler = self._make_error_handler(message)
message = ERROR
else:
request_handler = self._request_handler
request = self._request_factory(message, payload, self, writer, handler)
try:
# a new task is used for copy context vars (#3406)
task = self._loop.create_task(
self._handle_request(request, start, request_handler)
)
try:
resp, reset = await task
except (asyncio.CancelledError, ConnectionError):
self.log_debug("Ignored premature client disconnection")
break
# Drop the processed task from asyncio.Task.all_tasks() early
del task
if reset:
self.log_debug("Ignored premature client disconnection 2")
break
# notify server about keep-alive
self._keepalive = bool(resp.keep_alive)
# check payload
if not payload.is_eof():
lingering_time = self._lingering_time
if not self._force_close and lingering_time:
self.log_debug(
"Start lingering close timer for %s sec.", lingering_time
)
now = loop.time()
end_t = now + lingering_time
with suppress(asyncio.TimeoutError, asyncio.CancelledError):
while not payload.is_eof() and now < end_t:
async with ceil_timeout(end_t - now):
# read and ignore
await payload.readany()
now = loop.time()
# if payload still uncompleted
if not payload.is_eof() and not self._force_close:
self.log_debug("Uncompleted request.")
self.close()
payload.set_exception(PayloadAccessError())
except asyncio.CancelledError:
self.log_debug("Ignored premature client disconnection ")
break
except RuntimeError as exc:
if self.debug:
self.log_exception("Unhandled runtime exception", exc_info=exc)
self.force_close()
except Exception as exc:
self.log_exception("Unhandled exception", exc_info=exc)
self.force_close()
finally:
if self.transport is None and resp is not None:
self.log_debug("Ignored premature client disconnection.")
elif not self._force_close:
if self._keepalive and not self._close:
# start keep-alive timer
if keepalive_timeout is not None:
now = self._loop.time()
self._keepalive_time = now
if self._keepalive_handle is None:
self._keepalive_handle = loop.call_at(
now + keepalive_timeout, self._process_keepalive
)
else:
break
# remove handler, close transport if no handlers left
if not self._force_close:
self._task_handler = None
if self.transport is not None:
self.transport.close()
async def finish_response(
self, request: BaseRequest, resp: StreamResponse, start_time: float
) -> bool:
"""Prepare the response and write_eof, then log access.
This has to
be called within the context of any exception so the access logger
can get exception information. Returns True if the client disconnects
prematurely.
"""
if self._request_parser is not None:
self._request_parser.set_upgraded(False)
self._upgrade = False
if self._message_tail:
self._request_parser.feed_data(self._message_tail)
self._message_tail = b""
try:
prepare_meth = resp.prepare
except AttributeError:
if resp is None:
raise RuntimeError("Missing return " "statement on request handler")
else:
raise RuntimeError(
"Web-handler should return "
"a response instance, "
"got {!r}".format(resp)
)
try:
await prepare_meth(request)
await resp.write_eof()
except ConnectionError:
self.log_access(request, resp, start_time)
return True
else:
self.log_access(request, resp, start_time)
return False
def handle_error(
self,
request: BaseRequest,
status: int = 500,
exc: Optional[BaseException] = None,
message: Optional[str] = None,
) -> StreamResponse:
"""Handle errors.
Returns HTTP response with specific status code. Logs additional
information. It always closes current connection.
"""
self.log_exception("Error handling request", exc_info=exc)
# some data already got sent, connection is broken
if request.writer.output_size > 0:
raise ConnectionError(
"Response is sent already, cannot send another response "
"with the error message"
)
ct = "text/plain"
if status == HTTPStatus.INTERNAL_SERVER_ERROR:
title = "{0.value} {0.phrase}".format(HTTPStatus.INTERNAL_SERVER_ERROR)
msg = HTTPStatus.INTERNAL_SERVER_ERROR.description
tb = None
if self.debug:
with suppress(Exception):
tb = traceback.format_exc()
if "text/html" in request.headers.get("Accept", ""):
if tb:
tb = html_escape(tb)
msg = f"<h2>Traceback:</h2>\n<pre>{tb}</pre>"
message = (
"<html><head>"
"<title>{title}</title>"
"</head><body>\n<h1>{title}</h1>"
"\n{msg}\n</body></html>\n"
).format(title=title, msg=msg)
ct = "text/html"
else:
if tb:
msg = tb
message = title + "\n\n" + msg
resp = Response(status=status, text=message, content_type=ct)
resp.force_close()
return resp
def _make_error_handler(
self, err_info: _ErrInfo
) -> Callable[[BaseRequest], Awaitable[StreamResponse]]:
async def handler(request: BaseRequest) -> StreamResponse:
return self.handle_error(
request, err_info.status, err_info.exc, err_info.message
)
return handler

898
.venv/Lib/site-packages/aiohttp/web_request.py Normal file
View File

@ -0,0 +1,898 @@
import asyncio
import datetime
import io
import re
import socket
import string
import tempfile
import types
import warnings
from http.cookies import SimpleCookie
from types import MappingProxyType
from typing import (
TYPE_CHECKING,
Any,
Dict,
Final,
Iterator,
Mapping,
MutableMapping,
Optional,
Pattern,
Tuple,
Union,
cast,
)
from urllib.parse import parse_qsl
import attr
from multidict import (
CIMultiDict,
CIMultiDictProxy,
MultiDict,
MultiDictProxy,
MultiMapping,
)
from yarl import URL
from . import hdrs
from .abc import AbstractStreamWriter
from .helpers import (
_SENTINEL,
DEBUG,
ETAG_ANY,
LIST_QUOTED_ETAG_RE,
ChainMapProxy,
ETag,
HeadersMixin,
parse_http_date,
reify,
sentinel,
)
from .http_parser import RawRequestMessage
from .http_writer import HttpVersion
from .multipart import BodyPartReader, MultipartReader
from .streams import EmptyStreamReader, StreamReader
from .typedefs import (
DEFAULT_JSON_DECODER,
JSONDecoder,
LooseHeaders,
RawHeaders,
StrOrURL,
)
from .web_exceptions import HTTPRequestEntityTooLarge
from .web_response import StreamResponse
__all__ = ("BaseRequest", "FileField", "Request")
if TYPE_CHECKING: # pragma: no cover
from .web_app import Application
from .web_protocol import RequestHandler
from .web_urldispatcher import UrlMappingMatchInfo
@attr.s(auto_attribs=True, frozen=True, slots=True)
class FileField:
name: str
filename: str
file: io.BufferedReader
content_type: str
headers: "CIMultiDictProxy[str]"
_TCHAR: Final[str] = string.digits + string.ascii_letters + r"!#$%&'*+.^_`|~-"
# '-' at the end to prevent interpretation as range in a char class
_TOKEN: Final[str] = rf"[{_TCHAR}]+"
_QDTEXT: Final[str] = r"[{}]".format(
r"".join(chr(c) for c in (0x09, 0x20, 0x21) + tuple(range(0x23, 0x7F)))
)
# qdtext includes 0x5C to escape 0x5D ('\]')
# qdtext excludes obs-text (because obsoleted, and encoding not specified)
_QUOTED_PAIR: Final[str] = r"\\[\t !-~]"
_QUOTED_STRING: Final[str] = r'"(?:{quoted_pair}|{qdtext})*"'.format(
qdtext=_QDTEXT, quoted_pair=_QUOTED_PAIR
)
_FORWARDED_PAIR: Final[
str
] = r"({token})=({token}|{quoted_string})(:\d{{1,4}})?".format(
token=_TOKEN, quoted_string=_QUOTED_STRING
)
_QUOTED_PAIR_REPLACE_RE: Final[Pattern[str]] = re.compile(r"\\([\t !-~])")
# same pattern as _QUOTED_PAIR but contains a capture group
_FORWARDED_PAIR_RE: Final[Pattern[str]] = re.compile(_FORWARDED_PAIR)
############################################################
# HTTP Request
############################################################
class BaseRequest(MutableMapping[str, Any], HeadersMixin):
POST_METHODS = {
hdrs.METH_PATCH,
hdrs.METH_POST,
hdrs.METH_PUT,
hdrs.METH_TRACE,
hdrs.METH_DELETE,
}
ATTRS = HeadersMixin.ATTRS | frozenset(
[
"_message",
"_protocol",
"_payload_writer",
"_payload",
"_headers",
"_method",
"_version",
"_rel_url",
"_post",
"_read_bytes",
"_state",
"_cache",
"_task",
"_client_max_size",
"_loop",
"_transport_sslcontext",
"_transport_peername",
]
)
def __init__(
self,
message: RawRequestMessage,
payload: StreamReader,
protocol: "RequestHandler",
payload_writer: AbstractStreamWriter,
task: "asyncio.Task[None]",
loop: asyncio.AbstractEventLoop,
*,
client_max_size: int = 1024**2,
state: Optional[Dict[str, Any]] = None,
scheme: Optional[str] = None,
host: Optional[str] = None,
remote: Optional[str] = None,
) -> None:
if state is None:
state = {}
self._message = message
self._protocol = protocol
self._payload_writer = payload_writer
self._payload = payload
self._headers = message.headers
self._method = message.method
self._version = message.version
self._cache: Dict[str, Any] = {}
url = message.url
if url.is_absolute():
# absolute URL is given,
# override auto-calculating url, host, and scheme
# all other properties should be good
self._cache["url"] = url
self._cache["host"] = url.host
self._cache["scheme"] = url.scheme
self._rel_url = url.relative()
else:
self._rel_url = message.url
self._post: Optional[MultiDictProxy[Union[str, bytes, FileField]]] = None
self._read_bytes: Optional[bytes] = None
self._state = state
self._task = task
self._client_max_size = client_max_size
self._loop = loop
transport = self._protocol.transport
assert transport is not None
self._transport_sslcontext = transport.get_extra_info("sslcontext")
self._transport_peername = transport.get_extra_info("peername")
if scheme is not None:
self._cache["scheme"] = scheme
if host is not None:
self._cache["host"] = host
if remote is not None:
self._cache["remote"] = remote
def clone(
self,
*,
method: Union[str, _SENTINEL] = sentinel,
rel_url: Union[StrOrURL, _SENTINEL] = sentinel,
headers: Union[LooseHeaders, _SENTINEL] = sentinel,
scheme: Union[str, _SENTINEL] = sentinel,
host: Union[str, _SENTINEL] = sentinel,
remote: Union[str, _SENTINEL] = sentinel,
client_max_size: Union[int, _SENTINEL] = sentinel,
) -> "BaseRequest":
"""Clone itself with replacement some attributes.
Creates and returns a new instance of Request object. If no parameters
are given, an exact copy is returned. If a parameter is not passed, it
will reuse the one from the current request object.
"""
if self._read_bytes:
raise RuntimeError("Cannot clone request " "after reading its content")
dct: Dict[str, Any] = {}
if method is not sentinel:
dct["method"] = method
if rel_url is not sentinel:
new_url: URL = URL(rel_url)
dct["url"] = new_url
dct["path"] = str(new_url)
if headers is not sentinel:
# a copy semantic
dct["headers"] = CIMultiDictProxy(CIMultiDict(headers))
dct["raw_headers"] = tuple(
(k.encode("utf-8"), v.encode("utf-8")) for k, v in headers.items()
)
message = self._message._replace(**dct)
kwargs = {}
if scheme is not sentinel:
kwargs["scheme"] = scheme
if host is not sentinel:
kwargs["host"] = host
if remote is not sentinel:
kwargs["remote"] = remote
if client_max_size is sentinel:
client_max_size = self._client_max_size
return self.__class__(
message,
self._payload,
self._protocol,
self._payload_writer,
self._task,
self._loop,
client_max_size=client_max_size,
state=self._state.copy(),
**kwargs,
)
@property
def task(self) -> "asyncio.Task[None]":
return self._task
@property
def protocol(self) -> "RequestHandler":
return self._protocol
@property
def transport(self) -> Optional[asyncio.Transport]:
if self._protocol is None:
return None
return self._protocol.transport
@property
def writer(self) -> AbstractStreamWriter:
return self._payload_writer
@property
def client_max_size(self) -> int:
return self._client_max_size
@reify
def message(self) -> RawRequestMessage:
warnings.warn("Request.message is deprecated", DeprecationWarning, stacklevel=3)
return self._message
@reify
def rel_url(self) -> URL:
return self._rel_url
@reify
def loop(self) -> asyncio.AbstractEventLoop:
warnings.warn(
"request.loop property is deprecated", DeprecationWarning, stacklevel=2
)
return self._loop
# MutableMapping API
def __getitem__(self, key: str) -> Any:
return self._state[key]
def __setitem__(self, key: str, value: Any) -> None:
self._state[key] = value
def __delitem__(self, key: str) -> None:
del self._state[key]
def __len__(self) -> int:
return len(self._state)
def __iter__(self) -> Iterator[str]:
return iter(self._state)
########
@reify
def secure(self) -> bool:
"""A bool indicating if the request is handled with SSL."""
return self.scheme == "https"
@reify
def forwarded(self) -> Tuple[Mapping[str, str], ...]:
"""A tuple containing all parsed Forwarded header(s).
Makes an effort to parse Forwarded headers as specified by RFC 7239:
- It adds one (immutable) dictionary per Forwarded 'field-value', ie
per proxy. The element corresponds to the data in the Forwarded
field-value added by the first proxy encountered by the client. Each
subsequent item corresponds to those added by later proxies.
- It checks that every value has valid syntax in general as specified
in section 4: either a 'token' or a 'quoted-string'.
- It un-escapes found escape sequences.
- It does NOT validate 'by' and 'for' contents as specified in section
6.
- It does NOT validate 'host' contents (Host ABNF).
- It does NOT validate 'proto' contents for valid URI scheme names.
Returns a tuple containing one or more immutable dicts
"""
elems = []
for field_value in self._message.headers.getall(hdrs.FORWARDED, ()):
length = len(field_value)
pos = 0
need_separator = False
elem: Dict[str, str] = {}
elems.append(types.MappingProxyType(elem))
while 0 <= pos < length:
match = _FORWARDED_PAIR_RE.match(field_value, pos)
if match is not None: # got a valid forwarded-pair
if need_separator:
# bad syntax here, skip to next comma
pos = field_value.find(",", pos)
else:
name, value, port = match.groups()
if value[0] == '"':
# quoted string: remove quotes and unescape
value = _QUOTED_PAIR_REPLACE_RE.sub(r"\1", value[1:-1])
if port:
value += port
elem[name.lower()] = value
pos += len(match.group(0))
need_separator = True
elif field_value[pos] == ",": # next forwarded-element
need_separator = False
elem = {}
elems.append(types.MappingProxyType(elem))
pos += 1
elif field_value[pos] == ";": # next forwarded-pair
need_separator = False
pos += 1
elif field_value[pos] in " \t":
# Allow whitespace even between forwarded-pairs, though
# RFC 7239 doesn't. This simplifies code and is in line
# with Postel's law.
pos += 1
else:
# bad syntax here, skip to next comma
pos = field_value.find(",", pos)
return tuple(elems)
@reify
def scheme(self) -> str:
"""A string representing the scheme of the request.
Hostname is resolved in this order:
- overridden value by .clone(scheme=new_scheme) call.
- type of connection to peer: HTTPS if socket is SSL, HTTP otherwise.
'http' or 'https'.
"""
if self._transport_sslcontext:
return "https"
else:
return "http"
@reify
def method(self) -> str:
"""Read only property for getting HTTP method.
The value is upper-cased str like 'GET', 'POST', 'PUT' etc.
"""
return self._method
@reify
def version(self) -> HttpVersion:
"""Read only property for getting HTTP version of request.
Returns aiohttp.protocol.HttpVersion instance.
"""
return self._version
@reify
def host(self) -> str:
"""Hostname of the request.
Hostname is resolved in this order:
- overridden value by .clone(host=new_host) call.
- HOST HTTP header
- socket.getfqdn() value
"""
host = self._message.headers.get(hdrs.HOST)
if host is not None:
return host
return socket.getfqdn()
@reify
def remote(self) -> Optional[str]:
"""Remote IP of client initiated HTTP request.
The IP is resolved in this order:
- overridden value by .clone(remote=new_remote) call.
- peername of opened socket
"""
if self._transport_peername is None:
return None
if isinstance(self._transport_peername, (list, tuple)):
return str(self._transport_peername[0])
return str(self._transport_peername)
@reify
def url(self) -> URL:
url = URL.build(scheme=self.scheme, host=self.host)
return url.join(self._rel_url)
@reify
def path(self) -> str:
"""The URL including *PATH INFO* without the host or scheme.
E.g., ``/app/blog``
"""
return self._rel_url.path
@reify
def path_qs(self) -> str:
"""The URL including PATH_INFO and the query string.
E.g, /app/blog?id=10
"""
return str(self._rel_url)
@reify
def raw_path(self) -> str:
"""The URL including raw *PATH INFO* without the host or scheme.
Warning, the path is unquoted and may contains non valid URL characters
E.g., ``/my%2Fpath%7Cwith%21some%25strange%24characters``
"""
return self._message.path
@reify
def query(self) -> "MultiMapping[str]":
"""A multidict with all the variables in the query string."""
return MultiDictProxy(self._rel_url.query)
@reify
def query_string(self) -> str:
"""The query string in the URL.
E.g., id=10
"""
return self._rel_url.query_string
@reify
def headers(self) -> "MultiMapping[str]":
"""A case-insensitive multidict proxy with all headers."""
return self._headers
@reify
def raw_headers(self) -> RawHeaders:
"""A sequence of pairs for all headers."""
return self._message.raw_headers
@reify
def if_modified_since(self) -> Optional[datetime.datetime]:
"""The value of If-Modified-Since HTTP header, or None.
This header is represented as a `datetime` object.
"""
return parse_http_date(self.headers.get(hdrs.IF_MODIFIED_SINCE))
@reify
def if_unmodified_since(self) -> Optional[datetime.datetime]:
"""The value of If-Unmodified-Since HTTP header, or None.
This header is represented as a `datetime` object.
"""
return parse_http_date(self.headers.get(hdrs.IF_UNMODIFIED_SINCE))
@staticmethod
def _etag_values(etag_header: str) -> Iterator[ETag]:
"""Extract `ETag` objects from raw header."""
if etag_header == ETAG_ANY:
yield ETag(
is_weak=False,
value=ETAG_ANY,
)
else:
for match in LIST_QUOTED_ETAG_RE.finditer(etag_header):
is_weak, value, garbage = match.group(2, 3, 4)
# Any symbol captured by 4th group means
# that the following sequence is invalid.
if garbage:
break
yield ETag(
is_weak=bool(is_weak),
value=value,
)
@classmethod
def _if_match_or_none_impl(
cls, header_value: Optional[str]
) -> Optional[Tuple[ETag, ...]]:
if not header_value:
return None
return tuple(cls._etag_values(header_value))
@reify
def if_match(self) -> Optional[Tuple[ETag, ...]]:
"""The value of If-Match HTTP header, or None.
This header is represented as a `tuple` of `ETag` objects.
"""
return self._if_match_or_none_impl(self.headers.get(hdrs.IF_MATCH))
@reify
def if_none_match(self) -> Optional[Tuple[ETag, ...]]:
"""The value of If-None-Match HTTP header, or None.
This header is represented as a `tuple` of `ETag` objects.
"""
return self._if_match_or_none_impl(self.headers.get(hdrs.IF_NONE_MATCH))
@reify
def if_range(self) -> Optional[datetime.datetime]:
"""The value of If-Range HTTP header, or None.
This header is represented as a `datetime` object.
"""
return parse_http_date(self.headers.get(hdrs.IF_RANGE))
@reify
def keep_alive(self) -> bool:
"""Is keepalive enabled by client?"""
return not self._message.should_close
@reify
def cookies(self) -> Mapping[str, str]:
"""Return request cookies.
A read-only dictionary-like object.
"""
raw = self.headers.get(hdrs.COOKIE, "")
parsed = SimpleCookie(raw)
return MappingProxyType({key: val.value for key, val in parsed.items()})
@reify
def http_range(self) -> slice:
"""The content of Range HTTP header.
Return a slice instance.
"""
rng = self._headers.get(hdrs.RANGE)
start, end = None, None
if rng is not None:
try:
pattern = r"^bytes=(\d*)-(\d*)$"
start, end = re.findall(pattern, rng)[0]
except IndexError: # pattern was not found in header
raise ValueError("range not in acceptable format")
end = int(end) if end else None
start = int(start) if start else None
if start is None and end is not None:
# end with no start is to return tail of content
start = -end
end = None
if start is not None and end is not None:
# end is inclusive in range header, exclusive for slice
end += 1
if start >= end:
raise ValueError("start cannot be after end")
if start is end is None: # No valid range supplied
raise ValueError("No start or end of range specified")
return slice(start, end, 1)
@reify
def content(self) -> StreamReader:
"""Return raw payload stream."""
return self._payload
@property
def has_body(self) -> bool:
"""Return True if request's HTTP BODY can be read, False otherwise."""
warnings.warn(
"Deprecated, use .can_read_body #2005", DeprecationWarning, stacklevel=2
)
return not self._payload.at_eof()
@property
def can_read_body(self) -> bool:
"""Return True if request's HTTP BODY can be read, False otherwise."""
return not self._payload.at_eof()
@reify
def body_exists(self) -> bool:
"""Return True if request has HTTP BODY, False otherwise."""
return type(self._payload) is not EmptyStreamReader
async def release(self) -> None:
"""Release request.
Eat unread part of HTTP BODY if present.
"""
while not self._payload.at_eof():
await self._payload.readany()
async def read(self) -> bytes:
"""Read request body if present.
Returns bytes object with full request content.
"""
if self._read_bytes is None:
body = bytearray()
while True:
chunk = await self._payload.readany()
body.extend(chunk)
if self._client_max_size:
body_size = len(body)
if body_size >= self._client_max_size:
raise HTTPRequestEntityTooLarge(
max_size=self._client_max_size, actual_size=body_size
)
if not chunk:
break
self._read_bytes = bytes(body)
return self._read_bytes
async def text(self) -> str:
"""Return BODY as text using encoding from .charset."""
bytes_body = await self.read()
encoding = self.charset or "utf-8"
return bytes_body.decode(encoding)
async def json(self, *, loads: JSONDecoder = DEFAULT_JSON_DECODER) -> Any:
"""Return BODY as JSON."""
body = await self.text()
return loads(body)
async def multipart(self) -> MultipartReader:
"""Return async iterator to process BODY as multipart."""
return MultipartReader(self._headers, self._payload)
async def post(self) -> "MultiDictProxy[Union[str, bytes, FileField]]":
"""Return POST parameters."""
if self._post is not None:
return self._post
if self._method not in self.POST_METHODS:
self._post = MultiDictProxy(MultiDict())
return self._post
content_type = self.content_type
if content_type not in (
"",
"application/x-www-form-urlencoded",
"multipart/form-data",
):
self._post = MultiDictProxy(MultiDict())
return self._post
out: MultiDict[Union[str, bytes, FileField]] = MultiDict()
if content_type == "multipart/form-data":
multipart = await self.multipart()
max_size = self._client_max_size
field = await multipart.next()
while field is not None:
size = 0
field_ct = field.headers.get(hdrs.CONTENT_TYPE)
if isinstance(field, BodyPartReader):
assert field.name is not None
# Note that according to RFC 7578, the Content-Type header
# is optional, even for files, so we can't assume it's
# present.
# https://tools.ietf.org/html/rfc7578#section-4.4
if field.filename:
# store file in temp file
tmp = tempfile.TemporaryFile()
chunk = await field.read_chunk(size=2**16)
while chunk:
chunk = field.decode(chunk)
tmp.write(chunk)
size += len(chunk)
if 0 < max_size < size:
tmp.close()
raise HTTPRequestEntityTooLarge(
max_size=max_size, actual_size=size
)
chunk = await field.read_chunk(size=2**16)
tmp.seek(0)
if field_ct is None:
field_ct = "application/octet-stream"
ff = FileField(
field.name,
field.filename,
cast(io.BufferedReader, tmp),
field_ct,
field.headers,
)
out.add(field.name, ff)
else:
# deal with ordinary data
value = await field.read(decode=True)
if field_ct is None or field_ct.startswith("text/"):
charset = field.get_charset(default="utf-8")
out.add(field.name, value.decode(charset))
else:
out.add(field.name, value)
size += len(value)
if 0 < max_size < size:
raise HTTPRequestEntityTooLarge(
max_size=max_size, actual_size=size
)
else:
raise ValueError(
"To decode nested multipart you need " "to use custom reader",
)
field = await multipart.next()
else:
data = await self.read()
if data:
charset = self.charset or "utf-8"
out.extend(
parse_qsl(
data.rstrip().decode(charset),
keep_blank_values=True,
encoding=charset,
)
)
self._post = MultiDictProxy(out)
return self._post
def get_extra_info(self, name: str, default: Any = None) -> Any:
"""Extra info from protocol transport"""
protocol = self._protocol
if protocol is None:
return default
transport = protocol.transport
if transport is None:
return default
return transport.get_extra_info(name, default)
def __repr__(self) -> str:
ascii_encodable_path = self.path.encode("ascii", "backslashreplace").decode(
"ascii"
)
return "<{} {} {} >".format(
self.__class__.__name__, self._method, ascii_encodable_path
)
def __eq__(self, other: object) -> bool:
return id(self) == id(other)
def __bool__(self) -> bool:
return True
async def _prepare_hook(self, response: StreamResponse) -> None:
return
def _cancel(self, exc: BaseException) -> None:
self._payload.set_exception(exc)
class Request(BaseRequest):
ATTRS = BaseRequest.ATTRS | frozenset(["_match_info"])
def __init__(self, *args: Any, **kwargs: Any) -> None:
super().__init__(*args, **kwargs)
# matchdict, route_name, handler
# or information about traversal lookup
# initialized after route resolving
self._match_info: Optional[UrlMappingMatchInfo] = None
if DEBUG:
def __setattr__(self, name: str, val: Any) -> None:
if name not in self.ATTRS:
warnings.warn(
"Setting custom {}.{} attribute "
"is discouraged".format(self.__class__.__name__, name),
DeprecationWarning,
stacklevel=2,
)
super().__setattr__(name, val)
def clone(
self,
*,
method: Union[str, _SENTINEL] = sentinel,
rel_url: Union[StrOrURL, _SENTINEL] = sentinel,
headers: Union[LooseHeaders, _SENTINEL] = sentinel,
scheme: Union[str, _SENTINEL] = sentinel,
host: Union[str, _SENTINEL] = sentinel,
remote: Union[str, _SENTINEL] = sentinel,
client_max_size: Union[int, _SENTINEL] = sentinel,
) -> "Request":
ret = super().clone(
method=method,
rel_url=rel_url,
headers=headers,
scheme=scheme,
host=host,
remote=remote,
client_max_size=client_max_size,
)
new_ret = cast(Request, ret)
new_ret._match_info = self._match_info
return new_ret
@reify
def match_info(self) -> "UrlMappingMatchInfo":
"""Result of route resolving."""
match_info = self._match_info
assert match_info is not None
return match_info
@property
def app(self) -> "Application":
"""Application instance."""
match_info = self._match_info
assert match_info is not None
return match_info.current_app
@property
def config_dict(self) -> ChainMapProxy:
match_info = self._match_info
assert match_info is not None
lst = match_info.apps
app = self.app
idx = lst.index(app)
sublist = list(reversed(lst[: idx + 1]))
return ChainMapProxy(sublist)
async def _prepare_hook(self, response: StreamResponse) -> None:
match_info = self._match_info
if match_info is None:
return
for app in match_info._apps:
await app.on_response_prepare.send(self, response)

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