mirror of
https://github.com/yt-dlp/yt-dlp.git
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f440b14f87
The password returned by `security find-generic-password` has a newline at the end Closes #1073 Authored by: mbway
746 lines
29 KiB
Python
746 lines
29 KiB
Python
import ctypes
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import json
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import os
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import shutil
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import struct
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import subprocess
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import sys
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import tempfile
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from datetime import datetime, timedelta, timezone
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from hashlib import pbkdf2_hmac
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from .aes import aes_cbc_decrypt_bytes, aes_gcm_decrypt_and_verify_bytes
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from .compat import (
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compat_b64decode,
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compat_cookiejar_Cookie,
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)
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from .utils import (
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bug_reports_message,
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expand_path,
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process_communicate_or_kill,
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YoutubeDLCookieJar,
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)
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try:
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import sqlite3
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SQLITE_AVAILABLE = True
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except ImportError:
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# although sqlite3 is part of the standard library, it is possible to compile python without
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# sqlite support. See: https://github.com/yt-dlp/yt-dlp/issues/544
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SQLITE_AVAILABLE = False
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try:
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import keyring
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KEYRING_AVAILABLE = True
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KEYRING_UNAVAILABLE_REASON = f'due to unknown reasons{bug_reports_message()}'
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except ImportError:
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KEYRING_AVAILABLE = False
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KEYRING_UNAVAILABLE_REASON = (
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'as the `keyring` module is not installed. '
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'Please install by running `python3 -m pip install keyring`. '
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'Depending on your platform, additional packages may be required '
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'to access the keyring; see https://pypi.org/project/keyring')
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except Exception as _err:
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KEYRING_AVAILABLE = False
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KEYRING_UNAVAILABLE_REASON = 'as the `keyring` module could not be initialized: %s' % _err
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CHROMIUM_BASED_BROWSERS = {'brave', 'chrome', 'chromium', 'edge', 'opera', 'vivaldi'}
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SUPPORTED_BROWSERS = CHROMIUM_BASED_BROWSERS | {'firefox', 'safari'}
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class YDLLogger:
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def __init__(self, ydl=None):
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self._ydl = ydl
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def debug(self, message):
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if self._ydl:
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self._ydl.write_debug(message)
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def info(self, message):
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if self._ydl:
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self._ydl.to_screen(f'[Cookies] {message}')
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def warning(self, message, only_once=False):
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if self._ydl:
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self._ydl.report_warning(message, only_once)
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def error(self, message):
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if self._ydl:
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self._ydl.report_error(message)
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def load_cookies(cookie_file, browser_specification, ydl):
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cookie_jars = []
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if browser_specification is not None:
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browser_name, profile = _parse_browser_specification(*browser_specification)
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cookie_jars.append(extract_cookies_from_browser(browser_name, profile, YDLLogger(ydl)))
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if cookie_file is not None:
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cookie_file = expand_path(cookie_file)
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jar = YoutubeDLCookieJar(cookie_file)
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if os.access(cookie_file, os.R_OK):
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jar.load(ignore_discard=True, ignore_expires=True)
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cookie_jars.append(jar)
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return _merge_cookie_jars(cookie_jars)
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def extract_cookies_from_browser(browser_name, profile=None, logger=YDLLogger()):
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if browser_name == 'firefox':
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return _extract_firefox_cookies(profile, logger)
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elif browser_name == 'safari':
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return _extract_safari_cookies(profile, logger)
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elif browser_name in CHROMIUM_BASED_BROWSERS:
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return _extract_chrome_cookies(browser_name, profile, logger)
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else:
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raise ValueError('unknown browser: {}'.format(browser_name))
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def _extract_firefox_cookies(profile, logger):
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logger.info('Extracting cookies from firefox')
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if not SQLITE_AVAILABLE:
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logger.warning('Cannot extract cookies from firefox without sqlite3 support. '
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'Please use a python interpreter compiled with sqlite3 support')
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return YoutubeDLCookieJar()
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if profile is None:
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search_root = _firefox_browser_dir()
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elif _is_path(profile):
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search_root = profile
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else:
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search_root = os.path.join(_firefox_browser_dir(), profile)
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cookie_database_path = _find_most_recently_used_file(search_root, 'cookies.sqlite')
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if cookie_database_path is None:
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raise FileNotFoundError('could not find firefox cookies database in {}'.format(search_root))
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logger.debug('Extracting cookies from: "{}"'.format(cookie_database_path))
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with tempfile.TemporaryDirectory(prefix='youtube_dl') as tmpdir:
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cursor = None
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try:
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cursor = _open_database_copy(cookie_database_path, tmpdir)
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cursor.execute('SELECT host, name, value, path, expiry, isSecure FROM moz_cookies')
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jar = YoutubeDLCookieJar()
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for host, name, value, path, expiry, is_secure in cursor.fetchall():
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cookie = compat_cookiejar_Cookie(
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version=0, name=name, value=value, port=None, port_specified=False,
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domain=host, domain_specified=bool(host), domain_initial_dot=host.startswith('.'),
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path=path, path_specified=bool(path), secure=is_secure, expires=expiry, discard=False,
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comment=None, comment_url=None, rest={})
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jar.set_cookie(cookie)
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logger.info('Extracted {} cookies from firefox'.format(len(jar)))
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return jar
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finally:
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if cursor is not None:
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cursor.connection.close()
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def _firefox_browser_dir():
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if sys.platform in ('linux', 'linux2'):
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return os.path.expanduser('~/.mozilla/firefox')
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elif sys.platform == 'win32':
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return os.path.expandvars(r'%APPDATA%\Mozilla\Firefox\Profiles')
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elif sys.platform == 'darwin':
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return os.path.expanduser('~/Library/Application Support/Firefox')
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else:
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raise ValueError('unsupported platform: {}'.format(sys.platform))
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def _get_chromium_based_browser_settings(browser_name):
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# https://chromium.googlesource.com/chromium/src/+/HEAD/docs/user_data_dir.md
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if sys.platform in ('linux', 'linux2'):
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config = _config_home()
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browser_dir = {
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'brave': os.path.join(config, 'BraveSoftware/Brave-Browser'),
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'chrome': os.path.join(config, 'google-chrome'),
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'chromium': os.path.join(config, 'chromium'),
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'edge': os.path.join(config, 'microsoft-edge'),
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'opera': os.path.join(config, 'opera'),
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'vivaldi': os.path.join(config, 'vivaldi'),
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}[browser_name]
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elif sys.platform == 'win32':
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appdata_local = os.path.expandvars('%LOCALAPPDATA%')
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appdata_roaming = os.path.expandvars('%APPDATA%')
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browser_dir = {
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'brave': os.path.join(appdata_local, r'BraveSoftware\Brave-Browser\User Data'),
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'chrome': os.path.join(appdata_local, r'Google\Chrome\User Data'),
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'chromium': os.path.join(appdata_local, r'Chromium\User Data'),
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'edge': os.path.join(appdata_local, r'Microsoft\Edge\User Data'),
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'opera': os.path.join(appdata_roaming, r'Opera Software\Opera Stable'),
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'vivaldi': os.path.join(appdata_local, r'Vivaldi\User Data'),
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}[browser_name]
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elif sys.platform == 'darwin':
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appdata = os.path.expanduser('~/Library/Application Support')
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browser_dir = {
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'brave': os.path.join(appdata, 'BraveSoftware/Brave-Browser'),
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'chrome': os.path.join(appdata, 'Google/Chrome'),
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'chromium': os.path.join(appdata, 'Chromium'),
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'edge': os.path.join(appdata, 'Microsoft Edge'),
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'opera': os.path.join(appdata, 'com.operasoftware.Opera'),
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'vivaldi': os.path.join(appdata, 'Vivaldi'),
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}[browser_name]
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else:
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raise ValueError('unsupported platform: {}'.format(sys.platform))
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# Linux keyring names can be determined by snooping on dbus while opening the browser in KDE:
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# dbus-monitor "interface='org.kde.KWallet'" "type=method_return"
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keyring_name = {
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'brave': 'Brave',
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'chrome': 'Chrome',
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'chromium': 'Chromium',
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'edge': 'Microsoft Edge' if sys.platform == 'darwin' else 'Chromium',
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'opera': 'Opera' if sys.platform == 'darwin' else 'Chromium',
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'vivaldi': 'Vivaldi' if sys.platform == 'darwin' else 'Chrome',
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}[browser_name]
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browsers_without_profiles = {'opera'}
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return {
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'browser_dir': browser_dir,
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'keyring_name': keyring_name,
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'supports_profiles': browser_name not in browsers_without_profiles
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}
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def _extract_chrome_cookies(browser_name, profile, logger):
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logger.info('Extracting cookies from {}'.format(browser_name))
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if not SQLITE_AVAILABLE:
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logger.warning(('Cannot extract cookies from {} without sqlite3 support. '
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'Please use a python interpreter compiled with sqlite3 support').format(browser_name))
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return YoutubeDLCookieJar()
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config = _get_chromium_based_browser_settings(browser_name)
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if profile is None:
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search_root = config['browser_dir']
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elif _is_path(profile):
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search_root = profile
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config['browser_dir'] = os.path.dirname(profile) if config['supports_profiles'] else profile
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else:
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if config['supports_profiles']:
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search_root = os.path.join(config['browser_dir'], profile)
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else:
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logger.error('{} does not support profiles'.format(browser_name))
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search_root = config['browser_dir']
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cookie_database_path = _find_most_recently_used_file(search_root, 'Cookies')
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if cookie_database_path is None:
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raise FileNotFoundError('could not find {} cookies database in "{}"'.format(browser_name, search_root))
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logger.debug('Extracting cookies from: "{}"'.format(cookie_database_path))
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decryptor = get_cookie_decryptor(config['browser_dir'], config['keyring_name'], logger)
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with tempfile.TemporaryDirectory(prefix='youtube_dl') as tmpdir:
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cursor = None
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try:
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cursor = _open_database_copy(cookie_database_path, tmpdir)
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cursor.connection.text_factory = bytes
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column_names = _get_column_names(cursor, 'cookies')
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secure_column = 'is_secure' if 'is_secure' in column_names else 'secure'
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cursor.execute('SELECT host_key, name, value, encrypted_value, path, '
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'expires_utc, {} FROM cookies'.format(secure_column))
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jar = YoutubeDLCookieJar()
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failed_cookies = 0
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for host_key, name, value, encrypted_value, path, expires_utc, is_secure in cursor.fetchall():
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host_key = host_key.decode('utf-8')
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name = name.decode('utf-8')
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value = value.decode('utf-8')
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path = path.decode('utf-8')
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if not value and encrypted_value:
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value = decryptor.decrypt(encrypted_value)
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if value is None:
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failed_cookies += 1
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continue
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cookie = compat_cookiejar_Cookie(
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version=0, name=name, value=value, port=None, port_specified=False,
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domain=host_key, domain_specified=bool(host_key), domain_initial_dot=host_key.startswith('.'),
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path=path, path_specified=bool(path), secure=is_secure, expires=expires_utc, discard=False,
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comment=None, comment_url=None, rest={})
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jar.set_cookie(cookie)
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if failed_cookies > 0:
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failed_message = ' ({} could not be decrypted)'.format(failed_cookies)
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else:
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failed_message = ''
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logger.info('Extracted {} cookies from {}{}'.format(len(jar), browser_name, failed_message))
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return jar
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finally:
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if cursor is not None:
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cursor.connection.close()
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class ChromeCookieDecryptor:
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"""
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Overview:
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Linux:
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- cookies are either v10 or v11
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- v10: AES-CBC encrypted with a fixed key
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- v11: AES-CBC encrypted with an OS protected key (keyring)
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- v11 keys can be stored in various places depending on the activate desktop environment [2]
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Mac:
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- cookies are either v10 or not v10
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- v10: AES-CBC encrypted with an OS protected key (keyring) and more key derivation iterations than linux
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- not v10: 'old data' stored as plaintext
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Windows:
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- cookies are either v10 or not v10
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- v10: AES-GCM encrypted with a key which is encrypted with DPAPI
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- not v10: encrypted with DPAPI
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Sources:
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- [1] https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/
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- [2] https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/key_storage_linux.cc
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- KeyStorageLinux::CreateService
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"""
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def decrypt(self, encrypted_value):
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raise NotImplementedError
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def get_cookie_decryptor(browser_root, browser_keyring_name, logger):
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if sys.platform in ('linux', 'linux2'):
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return LinuxChromeCookieDecryptor(browser_keyring_name, logger)
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elif sys.platform == 'darwin':
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return MacChromeCookieDecryptor(browser_keyring_name, logger)
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elif sys.platform == 'win32':
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return WindowsChromeCookieDecryptor(browser_root, logger)
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else:
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raise NotImplementedError('Chrome cookie decryption is not supported '
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'on this platform: {}'.format(sys.platform))
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class LinuxChromeCookieDecryptor(ChromeCookieDecryptor):
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def __init__(self, browser_keyring_name, logger):
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self._logger = logger
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self._v10_key = self.derive_key(b'peanuts')
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if KEYRING_AVAILABLE:
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self._v11_key = self.derive_key(_get_linux_keyring_password(browser_keyring_name))
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else:
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self._v11_key = None
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@staticmethod
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def derive_key(password):
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# values from
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# https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/os_crypt_linux.cc
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return pbkdf2_sha1(password, salt=b'saltysalt', iterations=1, key_length=16)
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def decrypt(self, encrypted_value):
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version = encrypted_value[:3]
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ciphertext = encrypted_value[3:]
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if version == b'v10':
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return _decrypt_aes_cbc(ciphertext, self._v10_key, self._logger)
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elif version == b'v11':
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if self._v11_key is None:
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self._logger.warning(f'cannot decrypt cookie {KEYRING_UNAVAILABLE_REASON}', only_once=True)
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return None
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return _decrypt_aes_cbc(ciphertext, self._v11_key, self._logger)
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else:
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return None
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class MacChromeCookieDecryptor(ChromeCookieDecryptor):
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def __init__(self, browser_keyring_name, logger):
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self._logger = logger
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password = _get_mac_keyring_password(browser_keyring_name, logger)
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self._v10_key = None if password is None else self.derive_key(password)
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@staticmethod
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def derive_key(password):
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# values from
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# https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/os_crypt_mac.mm
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return pbkdf2_sha1(password, salt=b'saltysalt', iterations=1003, key_length=16)
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def decrypt(self, encrypted_value):
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version = encrypted_value[:3]
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ciphertext = encrypted_value[3:]
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if version == b'v10':
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if self._v10_key is None:
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self._logger.warning('cannot decrypt v10 cookies: no key found', only_once=True)
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return None
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return _decrypt_aes_cbc(ciphertext, self._v10_key, self._logger)
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else:
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# other prefixes are considered 'old data' which were stored as plaintext
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# https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/os_crypt_mac.mm
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return encrypted_value
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class WindowsChromeCookieDecryptor(ChromeCookieDecryptor):
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def __init__(self, browser_root, logger):
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self._logger = logger
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self._v10_key = _get_windows_v10_key(browser_root, logger)
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def decrypt(self, encrypted_value):
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version = encrypted_value[:3]
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ciphertext = encrypted_value[3:]
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if version == b'v10':
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if self._v10_key is None:
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self._logger.warning('cannot decrypt v10 cookies: no key found', only_once=True)
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return None
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# https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/os_crypt_win.cc
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# kNonceLength
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nonce_length = 96 // 8
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# boringssl
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# EVP_AEAD_AES_GCM_TAG_LEN
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authentication_tag_length = 16
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|
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raw_ciphertext = ciphertext
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nonce = raw_ciphertext[:nonce_length]
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ciphertext = raw_ciphertext[nonce_length:-authentication_tag_length]
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authentication_tag = raw_ciphertext[-authentication_tag_length:]
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return _decrypt_aes_gcm(ciphertext, self._v10_key, nonce, authentication_tag, self._logger)
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else:
|
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# any other prefix means the data is DPAPI encrypted
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# https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/os_crypt_win.cc
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return _decrypt_windows_dpapi(encrypted_value, self._logger).decode('utf-8')
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|
|
|
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def _extract_safari_cookies(profile, logger):
|
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if profile is not None:
|
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logger.error('safari does not support profiles')
|
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if sys.platform != 'darwin':
|
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raise ValueError('unsupported platform: {}'.format(sys.platform))
|
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|
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cookies_path = os.path.expanduser('~/Library/Cookies/Cookies.binarycookies')
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|
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if not os.path.isfile(cookies_path):
|
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raise FileNotFoundError('could not find safari cookies database')
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|
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with open(cookies_path, 'rb') as f:
|
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cookies_data = f.read()
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|
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jar = parse_safari_cookies(cookies_data, logger=logger)
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logger.info('Extracted {} cookies from safari'.format(len(jar)))
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return jar
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|
|
|
|
class ParserError(Exception):
|
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pass
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|
|
|
|
class DataParser:
|
|
def __init__(self, data, logger):
|
|
self._data = data
|
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self.cursor = 0
|
|
self._logger = logger
|
|
|
|
def read_bytes(self, num_bytes):
|
|
if num_bytes < 0:
|
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raise ParserError('invalid read of {} bytes'.format(num_bytes))
|
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end = self.cursor + num_bytes
|
|
if end > len(self._data):
|
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raise ParserError('reached end of input')
|
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data = self._data[self.cursor:end]
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self.cursor = end
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return data
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|
|
def expect_bytes(self, expected_value, message):
|
|
value = self.read_bytes(len(expected_value))
|
|
if value != expected_value:
|
|
raise ParserError('unexpected value: {} != {} ({})'.format(value, expected_value, message))
|
|
|
|
def read_uint(self, big_endian=False):
|
|
data_format = '>I' if big_endian else '<I'
|
|
return struct.unpack(data_format, self.read_bytes(4))[0]
|
|
|
|
def read_double(self, big_endian=False):
|
|
data_format = '>d' if big_endian else '<d'
|
|
return struct.unpack(data_format, self.read_bytes(8))[0]
|
|
|
|
def read_cstring(self):
|
|
buffer = []
|
|
while True:
|
|
c = self.read_bytes(1)
|
|
if c == b'\x00':
|
|
return b''.join(buffer).decode('utf-8')
|
|
else:
|
|
buffer.append(c)
|
|
|
|
def skip(self, num_bytes, description='unknown'):
|
|
if num_bytes > 0:
|
|
self._logger.debug('skipping {} bytes ({}): {}'.format(
|
|
num_bytes, description, self.read_bytes(num_bytes)))
|
|
elif num_bytes < 0:
|
|
raise ParserError('invalid skip of {} bytes'.format(num_bytes))
|
|
|
|
def skip_to(self, offset, description='unknown'):
|
|
self.skip(offset - self.cursor, description)
|
|
|
|
def skip_to_end(self, description='unknown'):
|
|
self.skip_to(len(self._data), description)
|
|
|
|
|
|
def _mac_absolute_time_to_posix(timestamp):
|
|
return int((datetime(2001, 1, 1, 0, 0, tzinfo=timezone.utc) + timedelta(seconds=timestamp)).timestamp())
|
|
|
|
|
|
def _parse_safari_cookies_header(data, logger):
|
|
p = DataParser(data, logger)
|
|
p.expect_bytes(b'cook', 'database signature')
|
|
number_of_pages = p.read_uint(big_endian=True)
|
|
page_sizes = [p.read_uint(big_endian=True) for _ in range(number_of_pages)]
|
|
return page_sizes, p.cursor
|
|
|
|
|
|
def _parse_safari_cookies_page(data, jar, logger):
|
|
p = DataParser(data, logger)
|
|
p.expect_bytes(b'\x00\x00\x01\x00', 'page signature')
|
|
number_of_cookies = p.read_uint()
|
|
record_offsets = [p.read_uint() for _ in range(number_of_cookies)]
|
|
if number_of_cookies == 0:
|
|
logger.debug('a cookies page of size {} has no cookies'.format(len(data)))
|
|
return
|
|
|
|
p.skip_to(record_offsets[0], 'unknown page header field')
|
|
|
|
for record_offset in record_offsets:
|
|
p.skip_to(record_offset, 'space between records')
|
|
record_length = _parse_safari_cookies_record(data[record_offset:], jar, logger)
|
|
p.read_bytes(record_length)
|
|
p.skip_to_end('space in between pages')
|
|
|
|
|
|
def _parse_safari_cookies_record(data, jar, logger):
|
|
p = DataParser(data, logger)
|
|
record_size = p.read_uint()
|
|
p.skip(4, 'unknown record field 1')
|
|
flags = p.read_uint()
|
|
is_secure = bool(flags & 0x0001)
|
|
p.skip(4, 'unknown record field 2')
|
|
domain_offset = p.read_uint()
|
|
name_offset = p.read_uint()
|
|
path_offset = p.read_uint()
|
|
value_offset = p.read_uint()
|
|
p.skip(8, 'unknown record field 3')
|
|
expiration_date = _mac_absolute_time_to_posix(p.read_double())
|
|
_creation_date = _mac_absolute_time_to_posix(p.read_double()) # noqa: F841
|
|
|
|
try:
|
|
p.skip_to(domain_offset)
|
|
domain = p.read_cstring()
|
|
|
|
p.skip_to(name_offset)
|
|
name = p.read_cstring()
|
|
|
|
p.skip_to(path_offset)
|
|
path = p.read_cstring()
|
|
|
|
p.skip_to(value_offset)
|
|
value = p.read_cstring()
|
|
except UnicodeDecodeError:
|
|
logger.warning('failed to parse Safari cookie because UTF-8 decoding failed', only_once=True)
|
|
return record_size
|
|
|
|
p.skip_to(record_size, 'space at the end of the record')
|
|
|
|
cookie = compat_cookiejar_Cookie(
|
|
version=0, name=name, value=value, port=None, port_specified=False,
|
|
domain=domain, domain_specified=bool(domain), domain_initial_dot=domain.startswith('.'),
|
|
path=path, path_specified=bool(path), secure=is_secure, expires=expiration_date, discard=False,
|
|
comment=None, comment_url=None, rest={})
|
|
jar.set_cookie(cookie)
|
|
return record_size
|
|
|
|
|
|
def parse_safari_cookies(data, jar=None, logger=YDLLogger()):
|
|
"""
|
|
References:
|
|
- https://github.com/libyal/dtformats/blob/main/documentation/Safari%20Cookies.asciidoc
|
|
- this data appears to be out of date but the important parts of the database structure is the same
|
|
- there are a few bytes here and there which are skipped during parsing
|
|
"""
|
|
if jar is None:
|
|
jar = YoutubeDLCookieJar()
|
|
page_sizes, body_start = _parse_safari_cookies_header(data, logger)
|
|
p = DataParser(data[body_start:], logger)
|
|
for page_size in page_sizes:
|
|
_parse_safari_cookies_page(p.read_bytes(page_size), jar, logger)
|
|
p.skip_to_end('footer')
|
|
return jar
|
|
|
|
|
|
def _get_linux_keyring_password(browser_keyring_name):
|
|
password = keyring.get_password('{} Keys'.format(browser_keyring_name),
|
|
'{} Safe Storage'.format(browser_keyring_name))
|
|
if password is None:
|
|
# this sometimes occurs in KDE because chrome does not check hasEntry and instead
|
|
# just tries to read the value (which kwallet returns "") whereas keyring checks hasEntry
|
|
# to verify this:
|
|
# dbus-monitor "interface='org.kde.KWallet'" "type=method_return"
|
|
# while starting chrome.
|
|
# this may be a bug as the intended behaviour is to generate a random password and store
|
|
# it, but that doesn't matter here.
|
|
password = ''
|
|
return password.encode('utf-8')
|
|
|
|
|
|
def _get_mac_keyring_password(browser_keyring_name, logger):
|
|
if KEYRING_AVAILABLE:
|
|
logger.debug('using keyring to obtain password')
|
|
password = keyring.get_password('{} Safe Storage'.format(browser_keyring_name), browser_keyring_name)
|
|
return password.encode('utf-8')
|
|
else:
|
|
logger.debug('using find-generic-password to obtain password')
|
|
proc = subprocess.Popen(['security', 'find-generic-password',
|
|
'-w', # write password to stdout
|
|
'-a', browser_keyring_name, # match 'account'
|
|
'-s', '{} Safe Storage'.format(browser_keyring_name)], # match 'service'
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.DEVNULL)
|
|
try:
|
|
stdout, stderr = process_communicate_or_kill(proc)
|
|
if stdout[-1:] == b'\n':
|
|
stdout = stdout[:-1]
|
|
return stdout
|
|
except BaseException as e:
|
|
logger.warning(f'exception running find-generic-password: {type(e).__name__}({e})')
|
|
return None
|
|
|
|
|
|
def _get_windows_v10_key(browser_root, logger):
|
|
path = _find_most_recently_used_file(browser_root, 'Local State')
|
|
if path is None:
|
|
logger.error('could not find local state file')
|
|
return None
|
|
with open(path, 'r') as f:
|
|
data = json.load(f)
|
|
try:
|
|
base64_key = data['os_crypt']['encrypted_key']
|
|
except KeyError:
|
|
logger.error('no encrypted key in Local State')
|
|
return None
|
|
encrypted_key = compat_b64decode(base64_key)
|
|
prefix = b'DPAPI'
|
|
if not encrypted_key.startswith(prefix):
|
|
logger.error('invalid key')
|
|
return None
|
|
return _decrypt_windows_dpapi(encrypted_key[len(prefix):], logger)
|
|
|
|
|
|
def pbkdf2_sha1(password, salt, iterations, key_length):
|
|
return pbkdf2_hmac('sha1', password, salt, iterations, key_length)
|
|
|
|
|
|
def _decrypt_aes_cbc(ciphertext, key, logger, initialization_vector=b' ' * 16):
|
|
plaintext = aes_cbc_decrypt_bytes(ciphertext, key, initialization_vector)
|
|
padding_length = plaintext[-1]
|
|
try:
|
|
return plaintext[:-padding_length].decode('utf-8')
|
|
except UnicodeDecodeError:
|
|
logger.warning('failed to decrypt cookie (AES-CBC) because UTF-8 decoding failed. Possibly the key is wrong?', only_once=True)
|
|
return None
|
|
|
|
|
|
def _decrypt_aes_gcm(ciphertext, key, nonce, authentication_tag, logger):
|
|
try:
|
|
plaintext = aes_gcm_decrypt_and_verify_bytes(ciphertext, key, authentication_tag, nonce)
|
|
except ValueError:
|
|
logger.warning('failed to decrypt cookie (AES-GCM) because the MAC check failed. Possibly the key is wrong?', only_once=True)
|
|
return None
|
|
|
|
try:
|
|
return plaintext.decode('utf-8')
|
|
except UnicodeDecodeError:
|
|
logger.warning('failed to decrypt cookie (AES-GCM) because UTF-8 decoding failed. Possibly the key is wrong?', only_once=True)
|
|
return None
|
|
|
|
|
|
def _decrypt_windows_dpapi(ciphertext, logger):
|
|
"""
|
|
References:
|
|
- https://docs.microsoft.com/en-us/windows/win32/api/dpapi/nf-dpapi-cryptunprotectdata
|
|
"""
|
|
from ctypes.wintypes import DWORD
|
|
|
|
class DATA_BLOB(ctypes.Structure):
|
|
_fields_ = [('cbData', DWORD),
|
|
('pbData', ctypes.POINTER(ctypes.c_char))]
|
|
|
|
buffer = ctypes.create_string_buffer(ciphertext)
|
|
blob_in = DATA_BLOB(ctypes.sizeof(buffer), buffer)
|
|
blob_out = DATA_BLOB()
|
|
ret = ctypes.windll.crypt32.CryptUnprotectData(
|
|
ctypes.byref(blob_in), # pDataIn
|
|
None, # ppszDataDescr: human readable description of pDataIn
|
|
None, # pOptionalEntropy: salt?
|
|
None, # pvReserved: must be NULL
|
|
None, # pPromptStruct: information about prompts to display
|
|
0, # dwFlags
|
|
ctypes.byref(blob_out) # pDataOut
|
|
)
|
|
if not ret:
|
|
logger.warning('failed to decrypt with DPAPI', only_once=True)
|
|
return None
|
|
|
|
result = ctypes.string_at(blob_out.pbData, blob_out.cbData)
|
|
ctypes.windll.kernel32.LocalFree(blob_out.pbData)
|
|
return result
|
|
|
|
|
|
def _config_home():
|
|
return os.environ.get('XDG_CONFIG_HOME', os.path.expanduser('~/.config'))
|
|
|
|
|
|
def _open_database_copy(database_path, tmpdir):
|
|
# cannot open sqlite databases if they are already in use (e.g. by the browser)
|
|
database_copy_path = os.path.join(tmpdir, 'temporary.sqlite')
|
|
shutil.copy(database_path, database_copy_path)
|
|
conn = sqlite3.connect(database_copy_path)
|
|
return conn.cursor()
|
|
|
|
|
|
def _get_column_names(cursor, table_name):
|
|
table_info = cursor.execute('PRAGMA table_info({})'.format(table_name)).fetchall()
|
|
return [row[1].decode('utf-8') for row in table_info]
|
|
|
|
|
|
def _find_most_recently_used_file(root, filename):
|
|
# if there are multiple browser profiles, take the most recently used one
|
|
paths = []
|
|
for root, dirs, files in os.walk(root):
|
|
for file in files:
|
|
if file == filename:
|
|
paths.append(os.path.join(root, file))
|
|
return None if not paths else max(paths, key=lambda path: os.lstat(path).st_mtime)
|
|
|
|
|
|
def _merge_cookie_jars(jars):
|
|
output_jar = YoutubeDLCookieJar()
|
|
for jar in jars:
|
|
for cookie in jar:
|
|
output_jar.set_cookie(cookie)
|
|
if jar.filename is not None:
|
|
output_jar.filename = jar.filename
|
|
return output_jar
|
|
|
|
|
|
def _is_path(value):
|
|
return os.path.sep in value
|
|
|
|
|
|
def _parse_browser_specification(browser_name, profile=None):
|
|
browser_name = browser_name.lower()
|
|
if browser_name not in SUPPORTED_BROWSERS:
|
|
raise ValueError(f'unsupported browser: "{browser_name}"')
|
|
if profile is not None and _is_path(profile):
|
|
profile = os.path.expanduser(profile)
|
|
return browser_name, profile
|