mirror of https://github.com/yt-dlp/yt-dlp.git
316 lines
9.8 KiB
Python
316 lines
9.8 KiB
Python
"""No longer used and new code should not use. Exists only for API compat."""
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import asyncio
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import atexit
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import platform
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import struct
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import sys
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import urllib.error
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import urllib.parse
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import urllib.request
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import zlib
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from ._utils import Popen, decode_base_n, preferredencoding
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from .traversal import traverse_obj
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from ..dependencies import certifi, websockets
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from ..networking._helper import make_ssl_context
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from ..networking._urllib import HTTPHandler
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# isort: split
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from .networking import escape_rfc3986 # noqa: F401
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from .networking import normalize_url as escape_url # noqa: F401
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from .networking import random_user_agent, std_headers # noqa: F401
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from ..cookies import YoutubeDLCookieJar # noqa: F401
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from ..networking._urllib import PUTRequest # noqa: F401
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from ..networking._urllib import SUPPORTED_ENCODINGS, HEADRequest # noqa: F401
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from ..networking._urllib import ProxyHandler as PerRequestProxyHandler # noqa: F401
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from ..networking._urllib import RedirectHandler as YoutubeDLRedirectHandler # noqa: F401
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from ..networking._urllib import ( # noqa: F401
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make_socks_conn_class,
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update_Request,
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)
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from ..networking.exceptions import HTTPError, network_exceptions # noqa: F401
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has_certifi = bool(certifi)
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has_websockets = bool(websockets)
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class WebSocketsWrapper:
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"""Wraps websockets module to use in non-async scopes"""
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pool = None
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def __init__(self, url, headers=None, connect=True, **ws_kwargs):
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self.loop = asyncio.new_event_loop()
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# XXX: "loop" is deprecated
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self.conn = websockets.connect(
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url, extra_headers=headers, ping_interval=None,
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close_timeout=float('inf'), loop=self.loop, ping_timeout=float('inf'), **ws_kwargs)
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if connect:
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self.__enter__()
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atexit.register(self.__exit__, None, None, None)
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def __enter__(self):
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if not self.pool:
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self.pool = self.run_with_loop(self.conn.__aenter__(), self.loop)
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return self
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def send(self, *args):
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self.run_with_loop(self.pool.send(*args), self.loop)
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def recv(self, *args):
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return self.run_with_loop(self.pool.recv(*args), self.loop)
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def __exit__(self, type, value, traceback):
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try:
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return self.run_with_loop(self.conn.__aexit__(type, value, traceback), self.loop)
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finally:
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self.loop.close()
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self._cancel_all_tasks(self.loop)
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# taken from https://github.com/python/cpython/blob/3.9/Lib/asyncio/runners.py with modifications
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# for contributors: If there's any new library using asyncio needs to be run in non-async, move these function out of this class
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@staticmethod
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def run_with_loop(main, loop):
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if not asyncio.iscoroutine(main):
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raise ValueError(f'a coroutine was expected, got {main!r}')
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try:
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return loop.run_until_complete(main)
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finally:
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loop.run_until_complete(loop.shutdown_asyncgens())
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if hasattr(loop, 'shutdown_default_executor'):
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loop.run_until_complete(loop.shutdown_default_executor())
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@staticmethod
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def _cancel_all_tasks(loop):
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to_cancel = asyncio.all_tasks(loop)
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if not to_cancel:
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return
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for task in to_cancel:
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task.cancel()
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# XXX: "loop" is removed in Python 3.10+
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loop.run_until_complete(
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asyncio.gather(*to_cancel, loop=loop, return_exceptions=True))
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for task in to_cancel:
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if task.cancelled():
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continue
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if task.exception() is not None:
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loop.call_exception_handler({
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'message': 'unhandled exception during asyncio.run() shutdown',
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'exception': task.exception(),
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'task': task,
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})
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def load_plugins(name, suffix, namespace):
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from ..plugins import load_plugins
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ret = load_plugins(name, suffix)
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namespace.update(ret)
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return ret
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def traverse_dict(dictn, keys, casesense=True):
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return traverse_obj(dictn, keys, casesense=casesense, is_user_input=True, traverse_string=True)
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def decode_base(value, digits):
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return decode_base_n(value, table=digits)
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def platform_name():
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""" Returns the platform name as a str """
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return platform.platform()
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def get_subprocess_encoding():
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if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5:
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# For subprocess calls, encode with locale encoding
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# Refer to http://stackoverflow.com/a/9951851/35070
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encoding = preferredencoding()
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else:
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encoding = sys.getfilesystemencoding()
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if encoding is None:
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encoding = 'utf-8'
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return encoding
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# UNUSED
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# Based on png2str() written by @gdkchan and improved by @yokrysty
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# Originally posted at https://github.com/ytdl-org/youtube-dl/issues/9706
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def decode_png(png_data):
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# Reference: https://www.w3.org/TR/PNG/
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header = png_data[8:]
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if png_data[:8] != b'\x89PNG\x0d\x0a\x1a\x0a' or header[4:8] != b'IHDR':
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raise OSError('Not a valid PNG file.')
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int_map = {1: '>B', 2: '>H', 4: '>I'}
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unpack_integer = lambda x: struct.unpack(int_map[len(x)], x)[0]
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chunks = []
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while header:
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length = unpack_integer(header[:4])
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header = header[4:]
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chunk_type = header[:4]
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header = header[4:]
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chunk_data = header[:length]
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header = header[length:]
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header = header[4:] # Skip CRC
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chunks.append({
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'type': chunk_type,
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'length': length,
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'data': chunk_data
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})
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ihdr = chunks[0]['data']
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width = unpack_integer(ihdr[:4])
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height = unpack_integer(ihdr[4:8])
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idat = b''
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for chunk in chunks:
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if chunk['type'] == b'IDAT':
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idat += chunk['data']
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if not idat:
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raise OSError('Unable to read PNG data.')
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decompressed_data = bytearray(zlib.decompress(idat))
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stride = width * 3
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pixels = []
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def _get_pixel(idx):
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x = idx % stride
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y = idx // stride
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return pixels[y][x]
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for y in range(height):
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basePos = y * (1 + stride)
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filter_type = decompressed_data[basePos]
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current_row = []
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pixels.append(current_row)
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for x in range(stride):
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color = decompressed_data[1 + basePos + x]
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basex = y * stride + x
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left = 0
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up = 0
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if x > 2:
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left = _get_pixel(basex - 3)
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if y > 0:
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up = _get_pixel(basex - stride)
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if filter_type == 1: # Sub
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color = (color + left) & 0xff
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elif filter_type == 2: # Up
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color = (color + up) & 0xff
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elif filter_type == 3: # Average
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color = (color + ((left + up) >> 1)) & 0xff
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elif filter_type == 4: # Paeth
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a = left
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b = up
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c = 0
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if x > 2 and y > 0:
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c = _get_pixel(basex - stride - 3)
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p = a + b - c
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pa = abs(p - a)
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pb = abs(p - b)
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pc = abs(p - c)
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if pa <= pb and pa <= pc:
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color = (color + a) & 0xff
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elif pb <= pc:
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color = (color + b) & 0xff
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else:
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color = (color + c) & 0xff
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current_row.append(color)
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return width, height, pixels
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def register_socks_protocols():
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# "Register" SOCKS protocols
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# In Python < 2.6.5, urlsplit() suffers from bug https://bugs.python.org/issue7904
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# URLs with protocols not in urlparse.uses_netloc are not handled correctly
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for scheme in ('socks', 'socks4', 'socks4a', 'socks5'):
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if scheme not in urllib.parse.uses_netloc:
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urllib.parse.uses_netloc.append(scheme)
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def handle_youtubedl_headers(headers):
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filtered_headers = headers
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if 'Youtubedl-no-compression' in filtered_headers:
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filtered_headers = {k: v for k, v in filtered_headers.items() if k.lower() != 'accept-encoding'}
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del filtered_headers['Youtubedl-no-compression']
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return filtered_headers
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def request_to_url(req):
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if isinstance(req, urllib.request.Request):
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return req.get_full_url()
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else:
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return req
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def sanitized_Request(url, *args, **kwargs):
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from ..utils import extract_basic_auth, sanitize_url
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url, auth_header = extract_basic_auth(escape_url(sanitize_url(url)))
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if auth_header is not None:
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headers = args[1] if len(args) >= 2 else kwargs.setdefault('headers', {})
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headers['Authorization'] = auth_header
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return urllib.request.Request(url, *args, **kwargs)
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class YoutubeDLHandler(HTTPHandler):
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def __init__(self, params, *args, **kwargs):
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self._params = params
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super().__init__(*args, **kwargs)
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YoutubeDLHTTPSHandler = YoutubeDLHandler
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class YoutubeDLCookieProcessor(urllib.request.HTTPCookieProcessor):
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def __init__(self, cookiejar=None):
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urllib.request.HTTPCookieProcessor.__init__(self, cookiejar)
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def http_response(self, request, response):
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return urllib.request.HTTPCookieProcessor.http_response(self, request, response)
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https_request = urllib.request.HTTPCookieProcessor.http_request
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https_response = http_response
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def make_HTTPS_handler(params, **kwargs):
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return YoutubeDLHTTPSHandler(params, context=make_ssl_context(
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verify=not params.get('nocheckcertificate'),
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client_certificate=params.get('client_certificate'),
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client_certificate_key=params.get('client_certificate_key'),
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client_certificate_password=params.get('client_certificate_password'),
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legacy_support=params.get('legacyserverconnect'),
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use_certifi='no-certifi' not in params.get('compat_opts', []),
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), **kwargs)
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def process_communicate_or_kill(p, *args, **kwargs):
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return Popen.communicate_or_kill(p, *args, **kwargs)
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