From 0b81d4d252bd065ccd352722987ea34fe17f9244 Mon Sep 17 00:00:00 2001 From: coletdjnz Date: Sat, 16 Mar 2024 22:47:56 -0500 Subject: [PATCH] Add new options `--impersonate` and `--list-impersonate-targets` Authored by: coletdjnz, Grub4K, pukkandan, bashonly Co-authored-by: Simon Sawicki Co-authored-by: pukkandan Co-authored-by: bashonly --- README.md | 4 + test/test_networking.py | 198 +++++++++++++++++++++++++++---- yt_dlp/YoutubeDL.py | 43 ++++++- yt_dlp/__init__.py | 41 +++++++ yt_dlp/networking/impersonate.py | 141 ++++++++++++++++++++++ yt_dlp/options.py | 12 ++ 6 files changed, 415 insertions(+), 24 deletions(-) create mode 100644 yt_dlp/networking/impersonate.py diff --git a/README.md b/README.md index 1e108a29c..d4b89229f 100644 --- a/README.md +++ b/README.md @@ -389,6 +389,10 @@ If you fork the project on GitHub, you can run your fork's [build workflow](.git direct connection --socket-timeout SECONDS Time to wait before giving up, in seconds --source-address IP Client-side IP address to bind to + --impersonate CLIENT[:OS] Client to impersonate for requests. E.g. + chrome, chrome-110, chrome:windows-10. Pass + --impersonate="" to impersonate any client. + --list-impersonate-targets List available clients to impersonate. -4, --force-ipv4 Make all connections via IPv4 -6, --force-ipv6 Make all connections via IPv6 --enable-file-urls Enable file:// URLs. This is disabled by diff --git a/test/test_networking.py b/test/test_networking.py index 628f1f171..b67b521d9 100644 --- a/test/test_networking.py +++ b/test/test_networking.py @@ -27,6 +27,7 @@ import zlib from email.message import Message from http.cookiejar import CookieJar +from test.conftest import validate_and_send from test.helper import FakeYDL, http_server_port, verify_address_availability from yt_dlp.cookies import YoutubeDLCookieJar from yt_dlp.dependencies import brotli, requests, urllib3 @@ -50,11 +51,14 @@ from yt_dlp.networking.exceptions import ( TransportError, UnsupportedRequest, ) +from yt_dlp.networking.impersonate import ( + ImpersonateRequestHandler, + ImpersonateTarget, +) +from yt_dlp.utils import YoutubeDLError from yt_dlp.utils._utils import _YDLLogger as FakeLogger from yt_dlp.utils.networking import HTTPHeaderDict -from test.conftest import validate_and_send - TEST_DIR = os.path.dirname(os.path.abspath(__file__)) @@ -1113,6 +1117,10 @@ class FakeResponse(Response): class FakeRH(RequestHandler): + def __init__(self, *args, **params): + self.params = params + super().__init__(*args, **params) + def _validate(self, request): return @@ -1271,15 +1279,10 @@ class TestYoutubeDLNetworking: ('', {'all': '__noproxy__'}), (None, {'http': 'http://127.0.0.1:8081', 'https': 'http://127.0.0.1:8081'}) # env, set https ]) - def test_proxy(self, proxy, expected): - old_http_proxy = os.environ.get('HTTP_PROXY') - try: - os.environ['HTTP_PROXY'] = 'http://127.0.0.1:8081' # ensure that provided proxies override env - with FakeYDL({'proxy': proxy}) as ydl: - assert ydl.proxies == expected - finally: - if old_http_proxy: - os.environ['HTTP_PROXY'] = old_http_proxy + def test_proxy(self, proxy, expected, monkeypatch): + monkeypatch.setenv('HTTP_PROXY', 'http://127.0.0.1:8081') + with FakeYDL({'proxy': proxy}) as ydl: + assert ydl.proxies == expected def test_compat_request(self): with FakeRHYDL() as ydl: @@ -1331,6 +1334,95 @@ class TestYoutubeDLNetworking: with pytest.raises(SSLError, match='testerror'): ydl.urlopen('ssl://testerror') + def test_unsupported_impersonate_target(self): + class FakeImpersonationRHYDL(FakeYDL): + def __init__(self, *args, **kwargs): + class HTTPRH(RequestHandler): + def _send(self, request: Request): + pass + _SUPPORTED_URL_SCHEMES = ('http',) + _SUPPORTED_PROXY_SCHEMES = None + + super().__init__(*args, **kwargs) + self._request_director = self.build_request_director([HTTPRH]) + + with FakeImpersonationRHYDL() as ydl: + with pytest.raises( + RequestError, + match=r'Impersonate target "test" is not available' + ): + ydl.urlopen(Request('http://', extensions={'impersonate': ImpersonateTarget('test', None, None, None)})) + + def test_unsupported_impersonate_extension(self): + class FakeHTTPRHYDL(FakeYDL): + def __init__(self, *args, **kwargs): + class IRH(ImpersonateRequestHandler): + def _send(self, request: Request): + pass + + _SUPPORTED_URL_SCHEMES = ('http',) + _SUPPORTED_IMPERSONATE_TARGET_MAP = {ImpersonateTarget('abc',): 'test'} + _SUPPORTED_PROXY_SCHEMES = None + + super().__init__(*args, **kwargs) + self._request_director = self.build_request_director([IRH]) + + with FakeHTTPRHYDL() as ydl: + with pytest.raises( + RequestError, + match=r'Impersonate target "test" is not available' + ): + ydl.urlopen(Request('http://', extensions={'impersonate': ImpersonateTarget('test', None, None, None)})) + + def test_raise_impersonate_error(self): + with pytest.raises( + YoutubeDLError, + match=r'Impersonate target "test" is not available' + ): + FakeYDL({'impersonate': ImpersonateTarget('test', None, None, None)}) + + def test_pass_impersonate_param(self, monkeypatch): + + class IRH(ImpersonateRequestHandler): + def _send(self, request: Request): + pass + + _SUPPORTED_URL_SCHEMES = ('http',) + _SUPPORTED_IMPERSONATE_TARGET_MAP = {ImpersonateTarget('abc'): 'test'} + + # Bypass the check on initialize + brh = FakeYDL.build_request_director + monkeypatch.setattr(FakeYDL, 'build_request_director', lambda cls, handlers, preferences=None: brh(cls, handlers=[IRH])) + + with FakeYDL({ + 'impersonate': ImpersonateTarget('abc', None, None, None) + }) as ydl: + rh = self.build_handler(ydl, IRH) + assert rh.impersonate == ImpersonateTarget('abc', None, None, None) + + def test_get_impersonate_targets(self): + handlers = [] + for target_client in ('abc', 'xyz', 'asd'): + class TestRH(ImpersonateRequestHandler): + def _send(self, request: Request): + pass + _SUPPORTED_URL_SCHEMES = ('http',) + _SUPPORTED_IMPERSONATE_TARGET_MAP = {ImpersonateTarget(target_client,): 'test'} + RH_KEY = target_client + RH_NAME = target_client + handlers.append(TestRH) + + with FakeYDL() as ydl: + ydl._request_director = ydl.build_request_director(handlers) + assert set(ydl._get_available_impersonate_targets()) == { + (ImpersonateTarget('xyz'), 'xyz'), + (ImpersonateTarget('abc'), 'abc'), + (ImpersonateTarget('asd'), 'asd') + } + assert ydl._impersonate_target_available(ImpersonateTarget('abc')) + assert ydl._impersonate_target_available(ImpersonateTarget()) + assert not ydl._impersonate_target_available(ImpersonateTarget('zxy')) + @pytest.mark.parametrize('proxy_key,proxy_url,expected', [ ('http', '__noproxy__', None), ('no', '127.0.0.1,foo.bar', '127.0.0.1,foo.bar'), @@ -1341,23 +1433,17 @@ class TestYoutubeDLNetworking: ('http', 'socks4://example.com', 'socks4://example.com'), ('unrelated', '/bad/proxy', '/bad/proxy'), # clean_proxies should ignore bad proxies ]) - def test_clean_proxy(self, proxy_key, proxy_url, expected): + def test_clean_proxy(self, proxy_key, proxy_url, expected, monkeypatch): # proxies should be cleaned in urlopen() with FakeRHYDL() as ydl: req = ydl.urlopen(Request('test://', proxies={proxy_key: proxy_url})).request assert req.proxies[proxy_key] == expected # and should also be cleaned when building the handler - env_key = f'{proxy_key.upper()}_PROXY' - old_env_proxy = os.environ.get(env_key) - try: - os.environ[env_key] = proxy_url # ensure that provided proxies override env - with FakeYDL() as ydl: - rh = self.build_handler(ydl) - assert rh.proxies[proxy_key] == expected - finally: - if old_env_proxy: - os.environ[env_key] = old_env_proxy + monkeypatch.setenv(f'{proxy_key.upper()}_PROXY', proxy_url) + with FakeYDL() as ydl: + rh = self.build_handler(ydl) + assert rh.proxies[proxy_key] == expected def test_clean_proxy_header(self): with FakeRHYDL() as ydl: @@ -1629,3 +1715,71 @@ class TestResponse: assert res.geturl() == res.url assert res.info() is res.headers assert res.getheader('test') == res.get_header('test') + + +class TestImpersonateTarget: + @pytest.mark.parametrize('target_str,expected', [ + ('abc', ImpersonateTarget('abc', None, None, None)), + ('abc-120_esr', ImpersonateTarget('abc', '120_esr', None, None)), + ('abc-120:xyz', ImpersonateTarget('abc', '120', 'xyz', None)), + ('abc-120:xyz-5.6', ImpersonateTarget('abc', '120', 'xyz', '5.6')), + ('abc:xyz', ImpersonateTarget('abc', None, 'xyz', None)), + ('abc:', ImpersonateTarget('abc', None, None, None)), + ('abc-120:', ImpersonateTarget('abc', '120', None, None)), + (':xyz', ImpersonateTarget(None, None, 'xyz', None)), + (':xyz-6.5', ImpersonateTarget(None, None, 'xyz', '6.5')), + (':', ImpersonateTarget(None, None, None, None)), + ('', ImpersonateTarget(None, None, None, None)), + ]) + def test_target_from_str(self, target_str, expected): + assert ImpersonateTarget.from_str(target_str) == expected + + @pytest.mark.parametrize('target_str', [ + '-120', ':-12.0', '-12:-12', '-:-', + '::', 'a-c-d:', 'a-c-d:e-f-g', 'a:b:' + ]) + def test_target_from_invalid_str(self, target_str): + with pytest.raises(ValueError): + ImpersonateTarget.from_str(target_str) + + @pytest.mark.parametrize('target,expected', [ + (ImpersonateTarget('abc', None, None, None), 'abc'), + (ImpersonateTarget('abc', '120', None, None), 'abc-120'), + (ImpersonateTarget('abc', '120', 'xyz', None), 'abc-120:xyz'), + (ImpersonateTarget('abc', '120', 'xyz', '5'), 'abc-120:xyz-5'), + (ImpersonateTarget('abc', None, 'xyz', None), 'abc:xyz'), + (ImpersonateTarget('abc', '120', None, None), 'abc-120'), + (ImpersonateTarget('abc', '120', 'xyz', None), 'abc-120:xyz'), + (ImpersonateTarget('abc', None, 'xyz'), 'abc:xyz'), + (ImpersonateTarget(None, None, 'xyz', '6.5'), ':xyz-6.5'), + (ImpersonateTarget('abc', ), 'abc'), + (ImpersonateTarget(None, None, None, None), ''), + ]) + def test_str(self, target, expected): + assert str(target) == expected + + @pytest.mark.parametrize('args', [ + ('abc', None, None, '5'), + ('abc', '120', None, '5'), + (None, '120', None, None), + (None, '120', None, '5'), + (None, None, None, '5'), + (None, '120', 'xyz', '5'), + ]) + def test_invalid_impersonate_target(self, args): + with pytest.raises(ValueError): + ImpersonateTarget(*args) + + @pytest.mark.parametrize('target1,target2,is_in,is_eq', [ + (ImpersonateTarget('abc', None, None, None), ImpersonateTarget('abc', None, None, None), True, True), + (ImpersonateTarget('abc', None, None, None), ImpersonateTarget('abc', '120', None, None), True, False), + (ImpersonateTarget('abc', None, 'xyz', 'test'), ImpersonateTarget('abc', '120', 'xyz', None), True, False), + (ImpersonateTarget('abc', '121', 'xyz', 'test'), ImpersonateTarget('abc', '120', 'xyz', 'test'), False, False), + (ImpersonateTarget('abc'), ImpersonateTarget('abc', '120', 'xyz', 'test'), True, False), + (ImpersonateTarget('abc', '120', 'xyz', 'test'), ImpersonateTarget('abc'), True, False), + (ImpersonateTarget(), ImpersonateTarget('abc', '120', 'xyz'), True, False), + (ImpersonateTarget(), ImpersonateTarget(), True, True), + ]) + def test_impersonate_target_in(self, target1, target2, is_in, is_eq): + assert (target1 in target2) is is_in + assert (target1 == target2) is is_eq diff --git a/yt_dlp/YoutubeDL.py b/yt_dlp/YoutubeDL.py index c34d97bba..e3d1db376 100644 --- a/yt_dlp/YoutubeDL.py +++ b/yt_dlp/YoutubeDL.py @@ -42,6 +42,7 @@ from .networking.exceptions import ( SSLError, network_exceptions, ) +from .networking.impersonate import ImpersonateRequestHandler from .plugins import directories as plugin_directories from .postprocessor import _PLUGIN_CLASSES as plugin_pps from .postprocessor import ( @@ -99,6 +100,7 @@ from .utils import ( SameFileError, UnavailableVideoError, UserNotLive, + YoutubeDLError, age_restricted, args_to_str, bug_reports_message, @@ -402,6 +404,8 @@ class YoutubeDL: - "detect_or_warn": check whether we can do anything about it, warn otherwise (default) source_address: Client-side IP address to bind to. + impersonate: Client to impersonate for requests. + An ImpersonateTarget (from yt_dlp.networking.impersonate) sleep_interval_requests: Number of seconds to sleep between requests during extraction sleep_interval: Number of seconds to sleep before each download when @@ -713,6 +717,13 @@ class YoutubeDL: for msg in self.params.get('_deprecation_warnings', []): self.deprecated_feature(msg) + if impersonate_target := self.params.get('impersonate'): + if not self._impersonate_target_available(impersonate_target): + raise YoutubeDLError( + f'Impersonate target "{impersonate_target}" is not available. ' + f'Use --list-impersonate-targets to see available targets. ' + f'You may be missing dependencies required to support this target.') + if 'list-formats' in self.params['compat_opts']: self.params['listformats_table'] = False @@ -4077,6 +4088,22 @@ class YoutubeDL: handler = self._request_director.handlers['Urllib'] return handler._get_instance(cookiejar=self.cookiejar, proxies=self.proxies) + def _get_available_impersonate_targets(self): + # todo(future): make available as public API + return [ + (target, rh.RH_NAME) + for rh in self._request_director.handlers.values() + if isinstance(rh, ImpersonateRequestHandler) + for target in rh.supported_targets + ] + + def _impersonate_target_available(self, target): + # todo(future): make available as public API + return any( + rh.is_supported_target(target) + for rh in self._request_director.handlers.values() + if isinstance(rh, ImpersonateRequestHandler)) + def urlopen(self, req): """ Start an HTTP download """ if isinstance(req, str): @@ -4108,9 +4135,13 @@ class YoutubeDL: raise RequestError( 'file:// URLs are disabled by default in yt-dlp for security reasons. ' 'Use --enable-file-urls to enable at your own risk.', cause=ue) from ue - if 'unsupported proxy type: "https"' in ue.msg.lower(): + if ( + 'unsupported proxy type: "https"' in ue.msg.lower() + and 'requests' not in self._request_director.handlers + and 'curl_cffi' not in self._request_director.handlers + ): raise RequestError( - 'To use an HTTPS proxy for this request, one of the following dependencies needs to be installed: requests') + 'To use an HTTPS proxy for this request, one of the following dependencies needs to be installed: requests, curl_cffi') elif ( re.match(r'unsupported url scheme: "wss?"', ue.msg.lower()) @@ -4120,6 +4151,13 @@ class YoutubeDL: 'This request requires WebSocket support. ' 'Ensure one of the following dependencies are installed: websockets', cause=ue) from ue + + elif re.match(r'unsupported (?:extensions: impersonate|impersonate target)', ue.msg.lower()): + raise RequestError( + f'Impersonate target "{req.extensions["impersonate"]}" is not available.' + f' See --list-impersonate-targets for available targets.' + f' This request requires browser impersonation, however you may be missing dependencies' + f' required to support this target.') raise except SSLError as e: if 'UNSAFE_LEGACY_RENEGOTIATION_DISABLED' in str(e): @@ -4152,6 +4190,7 @@ class YoutubeDL: 'timeout': 'socket_timeout', 'legacy_ssl_support': 'legacyserverconnect', 'enable_file_urls': 'enable_file_urls', + 'impersonate': 'impersonate', 'client_cert': { 'client_certificate': 'client_certificate', 'client_certificate_key': 'client_certificate_key', diff --git a/yt_dlp/__init__.py b/yt_dlp/__init__.py index aeea2625e..940594faf 100644 --- a/yt_dlp/__init__.py +++ b/yt_dlp/__init__.py @@ -19,6 +19,7 @@ from .cookies import SUPPORTED_BROWSERS, SUPPORTED_KEYRINGS from .downloader.external import get_external_downloader from .extractor import list_extractor_classes from .extractor.adobepass import MSO_INFO +from .networking.impersonate import ImpersonateTarget from .options import parseOpts from .postprocessor import ( FFmpegExtractAudioPP, @@ -48,6 +49,7 @@ from .utils import ( float_or_none, format_field, int_or_none, + join_nonempty, match_filter_func, parse_bytes, parse_duration, @@ -388,6 +390,9 @@ def validate_options(opts): f'Supported keyrings are: {", ".join(sorted(SUPPORTED_KEYRINGS))}') opts.cookiesfrombrowser = (browser_name, profile, keyring, container) + if opts.impersonate is not None: + opts.impersonate = ImpersonateTarget.from_str(opts.impersonate.lower()) + # MetadataParser def metadataparser_actions(f): if isinstance(f, str): @@ -911,6 +916,7 @@ def parse_options(argv=None): 'postprocessors': postprocessors, 'fixup': opts.fixup, 'source_address': opts.source_address, + 'impersonate': opts.impersonate, 'call_home': opts.call_home, 'sleep_interval_requests': opts.sleep_interval_requests, 'sleep_interval': opts.sleep_interval, @@ -980,6 +986,41 @@ def _real_main(argv=None): traceback.print_exc() ydl._download_retcode = 100 + if opts.list_impersonate_targets: + + known_targets = [ + # List of simplified targets we know are supported, + # to help users know what dependencies may be required. + (ImpersonateTarget('chrome'), 'curl_cffi'), + (ImpersonateTarget('edge'), 'curl_cffi'), + (ImpersonateTarget('safari'), 'curl_cffi'), + ] + + available_targets = ydl._get_available_impersonate_targets() + + def make_row(target, handler): + return [ + join_nonempty(target.client.title(), target.version, delim='-') or '-', + join_nonempty((target.os or "").title(), target.os_version, delim='-') or '-', + handler, + ] + + rows = [make_row(target, handler) for target, handler in available_targets] + + for known_target, known_handler in known_targets: + if not any( + known_target in target and handler == known_handler + for target, handler in available_targets + ): + rows.append([ + ydl._format_out(text, ydl.Styles.SUPPRESS) + for text in make_row(known_target, f'{known_handler} (not available)') + ]) + + ydl.to_screen('[info] Available impersonate targets') + ydl.to_stdout(render_table(['Client', 'OS', 'Source'], rows, extra_gap=2, delim='-')) + return + if not actual_use: if pre_process: return ydl._download_retcode diff --git a/yt_dlp/networking/impersonate.py b/yt_dlp/networking/impersonate.py new file mode 100644 index 000000000..ca66180c7 --- /dev/null +++ b/yt_dlp/networking/impersonate.py @@ -0,0 +1,141 @@ +from __future__ import annotations + +import re +from abc import ABC +from dataclasses import dataclass +from typing import Any + +from .common import RequestHandler, register_preference +from .exceptions import UnsupportedRequest +from ..compat.types import NoneType +from ..utils import classproperty, join_nonempty +from ..utils.networking import std_headers + + +@dataclass(order=True, frozen=True) +class ImpersonateTarget: + """ + A target for browser impersonation. + + Parameters: + @param client: the client to impersonate + @param version: the client version to impersonate + @param os: the client OS to impersonate + @param os_version: the client OS version to impersonate + + Note: None is used to indicate to match any. + + """ + client: str | None = None + version: str | None = None + os: str | None = None + os_version: str | None = None + + def __post_init__(self): + if self.version and not self.client: + raise ValueError('client is required if version is set') + if self.os_version and not self.os: + raise ValueError('os is required if os_version is set') + + def __contains__(self, target: ImpersonateTarget): + if not isinstance(target, ImpersonateTarget): + return False + return ( + (self.client is None or target.client is None or self.client == target.client) + and (self.version is None or target.version is None or self.version == target.version) + and (self.os is None or target.os is None or self.os == target.os) + and (self.os_version is None or target.os_version is None or self.os_version == target.os_version) + ) + + def __str__(self): + return f'{join_nonempty(self.client, self.version)}:{join_nonempty(self.os, self.os_version)}'.rstrip(':') + + @classmethod + def from_str(cls, target: str): + mobj = re.fullmatch(r'(?:(?P[^:-]+)(?:-(?P[^:-]+))?)?(?::(?:(?P[^:-]+)(?:-(?P[^:-]+))?)?)?', target) + if not mobj: + raise ValueError(f'Invalid impersonate target "{target}"') + return cls(**mobj.groupdict()) + + +class ImpersonateRequestHandler(RequestHandler, ABC): + """ + Base class for request handlers that support browser impersonation. + + This provides a method for checking the validity of the impersonate extension, + which can be used in _check_extensions. + + Impersonate targets consist of a client, version, os and os_ver. + See the ImpersonateTarget class for more details. + + The following may be defined: + - `_SUPPORTED_IMPERSONATE_TARGET_MAP`: a dict mapping supported targets to custom object. + Any Request with an impersonate target not in this list will raise an UnsupportedRequest. + Set to None to disable this check. + Note: Entries are in order of preference + + Parameters: + @param impersonate: the default impersonate target to use for requests. + Set to None to disable impersonation. + """ + _SUPPORTED_IMPERSONATE_TARGET_MAP: dict[ImpersonateTarget, Any] = {} + + def __init__(self, *, impersonate: ImpersonateTarget = None, **kwargs): + super().__init__(**kwargs) + self.impersonate = impersonate + + def _check_impersonate_target(self, target: ImpersonateTarget): + assert isinstance(target, (ImpersonateTarget, NoneType)) + if target is None or not self.supported_targets: + return + if not self.is_supported_target(target): + raise UnsupportedRequest(f'Unsupported impersonate target: {target}') + + def _check_extensions(self, extensions): + super()._check_extensions(extensions) + if 'impersonate' in extensions: + self._check_impersonate_target(extensions.get('impersonate')) + + def _validate(self, request): + super()._validate(request) + self._check_impersonate_target(self.impersonate) + + def _resolve_target(self, target: ImpersonateTarget | None): + """Resolve a target to a supported target.""" + if target is None: + return + for supported_target in self.supported_targets: + if target in supported_target: + if self.verbose: + self._logger.stdout( + f'{self.RH_NAME}: resolved impersonate target {target} to {supported_target}') + return supported_target + + @classproperty + def supported_targets(self) -> tuple[ImpersonateTarget, ...]: + return tuple(self._SUPPORTED_IMPERSONATE_TARGET_MAP.keys()) + + def is_supported_target(self, target: ImpersonateTarget): + assert isinstance(target, ImpersonateTarget) + return self._resolve_target(target) is not None + + def _get_request_target(self, request): + """Get the requested target for the request""" + return self._resolve_target(request.extensions.get('impersonate') or self.impersonate) + + def _get_impersonate_headers(self, request): + headers = self._merge_headers(request.headers) + if self._get_request_target(request) is not None: + # remove all headers present in std_headers + # todo: change this to not depend on std_headers + for k, v in std_headers.items(): + if headers.get(k) == v: + headers.pop(k) + return headers + + +@register_preference(ImpersonateRequestHandler) +def impersonate_preference(rh, request): + if request.extensions.get('impersonate') or rh.impersonate: + return 1000 + return 0 diff --git a/yt_dlp/options.py b/yt_dlp/options.py index f88472731..dac56dc1f 100644 --- a/yt_dlp/options.py +++ b/yt_dlp/options.py @@ -515,6 +515,18 @@ def create_parser(): metavar='IP', dest='source_address', default=None, help='Client-side IP address to bind to', ) + network.add_option( + '--impersonate', + metavar='CLIENT[:OS]', dest='impersonate', default=None, + help=( + 'Client to impersonate for requests. E.g. chrome, chrome-110, chrome:windows-10. ' + 'Pass --impersonate="" to impersonate any client.'), + ) + network.add_option( + '--list-impersonate-targets', + dest='list_impersonate_targets', default=False, action='store_true', + help='List available clients to impersonate.', + ) network.add_option( '-4', '--force-ipv4', action='store_const', const='0.0.0.0', dest='source_address',