mirror of
https://github.com/yt-dlp/yt-dlp.git
synced 2025-03-09 12:50:23 -05:00
195 lines
8.1 KiB
Python
195 lines
8.1 KiB
Python
from __future__ import annotations
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import http.cookiejar
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import json
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import subprocess
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import typing
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import urllib.parse
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from ..utils import (
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ExtractorError,
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Popen,
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int_or_none,
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shell_quote,
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unified_timestamp,
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)
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from ._helper import TempFileWrapper, random_string, override_navigator_js, extract_script_tags
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from .common import ExternalJSI, register_jsi
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@register_jsi
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class DenoJSI(ExternalJSI):
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"""JS interpreter class using Deno binary"""
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_SUPPORTED_FEATURES = {'wasm', 'location'}
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_BASE_PREFERENCE = 5
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_EXE_NAME = 'deno'
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_DENO_FLAGS = ['--cached-only', '--no-prompt', '--no-check']
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_INIT_SCRIPT = 'localStorage.clear(); delete window.Deno; global = window;\n'
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def __init__(self, *args, flags=[], replace_flags=False, init_script=None, **kwargs):
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super().__init__(*args, **kwargs)
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self._flags = flags if replace_flags else [*self._DENO_FLAGS, *flags]
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self._init_script = self._INIT_SCRIPT if init_script is None else init_script
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@property
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def _override_navigator_js(self):
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return override_navigator_js(self.user_agent)
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def _run_deno(self, cmd):
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self.write_debug(f'Deno command line: {shell_quote(cmd)}')
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try:
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stdout, stderr, returncode = Popen.run(
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cmd, timeout=self.timeout, text=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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except Exception as e:
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raise ExtractorError('Unable to run Deno binary', cause=e)
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if returncode:
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raise ExtractorError(f'Failed with returncode {returncode}:\n{stderr}')
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elif stderr:
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self.report_warning(f'JS console error msg:\n{stderr.strip()}')
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return stdout.strip()
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def execute(self, jscode, video_id=None, note='Executing JS in Deno'):
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self.report_note(video_id, note)
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location_args = ['--location', self._url] if self._url else []
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with TempFileWrapper(f'{self._init_script};\n{self._override_navigator_js}\n{jscode}', suffix='.js') as js_file:
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cmd = [self.exe, 'run', *self._flags, *location_args, js_file.name]
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return self._run_deno(cmd)
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@register_jsi
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class DenoJSDomJSI(DenoJSI):
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_SUPPORTED_FEATURES = {'wasm', 'location', 'dom', 'cookies'}
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_BASE_PREFERENCE = 4
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_DENO_FLAGS = ['--cached-only', '--no-prompt', '--no-check']
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_JSDOM_IMPORT_CHECKED = False
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_JSDOM_URL = 'https://cdn.esm.sh/jsdom'
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@staticmethod
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def serialize_cookie(cookiejar: YoutubeDLCookieJar | None, url: str):
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"""serialize netscape-compatible fields from cookiejar for tough-cookie loading"""
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# JSDOM use tough-cookie as its CookieJar https://github.com/jsdom/jsdom/blob/main/lib/api.js
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# tough-cookie use Cookie.fromJSON and Cookie.toJSON for cookie serialization
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# https://github.com/salesforce/tough-cookie/blob/master/lib/cookie/cookie.ts
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if not cookiejar:
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return json.dumps({'cookies': []})
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cookies: list[http.cookiejar.Cookie] = list(cookiejar.get_cookies_for_url(url))
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return json.dumps({'cookies': [{
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'key': cookie.name,
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'value': cookie.value,
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# leading dot of domain must be removed, otherwise will fail to match
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'domain': cookie.domain.lstrip('.') or urllib.parse.urlparse(url).hostname,
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'expires': int_or_none(cookie.expires, invscale=1000),
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'hostOnly': not cookie.domain_initial_dot,
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'secure': bool(cookie.secure),
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'path': cookie.path,
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} for cookie in cookies if cookie.value]})
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@staticmethod
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def apply_cookies(cookiejar: YoutubeDLCookieJar | None, cookies: list[dict]):
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"""apply cookies from serialized tough-cookie"""
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# see serialize_cookie
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if not cookiejar:
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return
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for cookie_dict in cookies:
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if not all(cookie_dict.get(k) for k in ('key', 'value', 'domain')):
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continue
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if cookie_dict.get('hostOnly'):
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cookie_dict['domain'] = cookie_dict['domain'].lstrip('.')
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else:
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cookie_dict['domain'] = '.' + cookie_dict['domain'].lstrip('.')
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cookiejar.set_cookie(http.cookiejar.Cookie(
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0, cookie_dict['key'], cookie_dict['value'],
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None, False,
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cookie_dict['domain'], True, not cookie_dict.get('hostOnly'),
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cookie_dict.get('path', '/'), True,
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bool(cookie_dict.get('secure')),
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unified_timestamp(cookie_dict.get('expires')),
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False, None, None, {}))
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def _ensure_jsdom(self):
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if self._JSDOM_IMPORT_CHECKED:
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return
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with TempFileWrapper(f'import jsdom from "{self._JSDOM_URL}"', suffix='.js') as js_file:
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cmd = [self.exe, 'run', js_file.name]
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self._run_deno(cmd)
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self._JSDOM_IMPORT_CHECKED = True
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def execute(self, jscode, video_id=None, note='Executing JS in Deno with jsdom', html='', cookiejar=None):
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self.report_note(video_id, note)
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self._ensure_jsdom()
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if cookiejar and not self._url:
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self.report_warning('No valid url scope provided, cookiejar is not applied')
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cookiejar = None
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html, inline_scripts = extract_script_tags(html)
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wrapper_scripts = '\n'.join(['try { %s } catch (e) {}' % script for script in inline_scripts])
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callback_varname = f'__callback_{random_string()}'
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script = f'''{self._init_script};
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import jsdom from "{self._JSDOM_URL}";
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let {callback_varname} = (() => {{
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const jar = jsdom.CookieJar.deserializeSync({json.dumps(self.serialize_cookie(cookiejar, self._url))});
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const dom = new jsdom.JSDOM({json.dumps(str(html))}, {{
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{'url: %s,' % json.dumps(str(self._url)) if self._url else ''}
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cookieJar: jar,
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pretendToBeVisual: true,
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}});
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Object.keys(dom.window).filter(key => !['atob', 'btoa', 'crypto', 'location'].includes(key))
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.filter(key => !(window.location? [] : ['sessionStorage', 'localStorage']).includes(key))
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.forEach((key) => {{
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try {{window[key] = dom.window[key]}} catch (e) {{ console.error(e) }}
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}});
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{self._override_navigator_js};
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window.screen = {{
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availWidth: 1920,
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availHeight: 1040,
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width: 1920,
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height: 1080,
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colorDepth: 24,
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isExtended: true,
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onchange: null,
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orientation: {{angle: 0, type: 'landscape-primary', onchange: null}},
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pixelDepth: 24,
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}}
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Object.defineProperty(document.body, 'clientWidth', {{value: 1903}});
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Object.defineProperty(document.body, 'clientHeight', {{value: 2000}});
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document.domain = location?.hostname;
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delete window.jsdom;
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const origLog = console.log;
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console.log = () => {{}};
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console.info = () => {{}};
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return () => {{
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const stdout = [];
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console.log = (...msg) => stdout.push(msg.map(m => '' + m).join(' '));
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return () => {{ origLog(JSON.stringify({{
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stdout: stdout.join('\\n'), cookies: jar.serializeSync().cookies}})); }}
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}}
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}})();
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{wrapper_scripts}
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{callback_varname} = {callback_varname}(); // begin to capture console.log
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try {{
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{jscode}
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}} finally {{
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{callback_varname}();
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}}
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'''
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location_args = ['--location', self._url] if self._url else []
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with TempFileWrapper(script, suffix='.js') as js_file:
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cmd = [self.exe, 'run', *self._flags, *location_args, js_file.name]
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result = self._run_deno(cmd)
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try:
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data = json.loads(result)
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except json.JSONDecodeError as e:
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raise ExtractorError(f'Failed to parse JSON output from Deno: {result}', cause=e)
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self.apply_cookies(cookiejar, data['cookies'])
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return data['stdout']
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if typing.TYPE_CHECKING:
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from ..cookies import YoutubeDLCookieJar
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