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yt-dlp/yt_dlp/extractor/youtube/jsc/_builtin/quickjs.py

60 lines
2.2 KiB
Python

from __future__ import annotations
import pathlib
import shlex
import subprocess
import tempfile
from yt_dlp.extractor.youtube.jsc._builtin.ejs import EJSBaseJCP
from yt_dlp.extractor.youtube.jsc.provider import (
JsChallengeProvider,
JsChallengeProviderError,
JsChallengeRequest,
register_preference,
register_provider,
)
from yt_dlp.extractor.youtube.pot._provider import BuiltinIEContentProvider
from yt_dlp.utils import Popen
@register_provider
class QuickJSJCP(EJSBaseJCP, BuiltinIEContentProvider):
PROVIDER_NAME = 'quickjs'
JS_RUNTIME_NAME = 'quickjs'
def _run_js_runtime(self, stdin: str, /) -> str:
if self.runtime_info.name == 'quickjs-ng':
self.logger.warning('QuickJS-NG is missing some optimizations making this very slow. Consider using upstream QuickJS instead.')
elif self.runtime_info.version_tuple < (2025, 4, 26):
self.logger.warning('Older QuickJS versions are missing optimizations making this very slow. Consider upgrading.')
# QuickJS does not support reading from stdin, so we have to use a temp file
temp_file = tempfile.NamedTemporaryFile(mode='w', suffix='.js', delete=False, encoding='utf-8')
try:
temp_file.write(stdin)
temp_file.close()
cmd = [self.runtime_info.path, '--script', temp_file.name]
self.logger.debug(f'Running QuickJS: {shlex.join(cmd)}')
with Popen(
cmd,
text=True,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
) as proc:
stdout, stderr = proc.communicate_or_kill()
if proc.returncode or stderr:
msg = f'Error running QuickJS process (returncode: {proc.returncode})'
if stderr:
msg = f'{msg}: {stderr.strip()}'
raise JsChallengeProviderError(msg)
finally:
pathlib.Path(temp_file.name).unlink(missing_ok=True)
return stdout
@register_preference(QuickJSJCP)
def preference(provider: JsChallengeProvider, requests: list[JsChallengeRequest]) -> int:
return 850