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yt-dlc/yt_dlp/cookies.py

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Python
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import ctypes
import json
import os
import shutil
import struct
import subprocess
import sys
import tempfile
from datetime import datetime, timedelta, timezone
from hashlib import pbkdf2_hmac
from yt_dlp.aes import aes_cbc_decrypt
from yt_dlp.compat import (
compat_b64decode,
compat_cookiejar_Cookie,
)
from yt_dlp.utils import (
bytes_to_intlist,
expand_path,
intlist_to_bytes,
process_communicate_or_kill,
YoutubeDLCookieJar,
)
try:
import sqlite3
SQLITE_AVAILABLE = True
except ImportError:
# although sqlite3 is part of the standard library, it is possible to compile python without
# sqlite support. See: https://github.com/yt-dlp/yt-dlp/issues/544
SQLITE_AVAILABLE = False
try:
from Crypto.Cipher import AES
CRYPTO_AVAILABLE = True
except ImportError:
CRYPTO_AVAILABLE = False
try:
import keyring
KEYRING_AVAILABLE = True
except ImportError:
KEYRING_AVAILABLE = False
CHROMIUM_BASED_BROWSERS = {'brave', 'chrome', 'chromium', 'edge', 'opera', 'vivaldi'}
SUPPORTED_BROWSERS = CHROMIUM_BASED_BROWSERS | {'firefox', 'safari'}
class YDLLogger:
def __init__(self, ydl=None):
self._ydl = ydl
def debug(self, message):
if self._ydl:
self._ydl.write_debug(message)
def info(self, message):
if self._ydl:
self._ydl.to_screen(f'[Cookies] {message}')
def warning(self, message, only_once=False):
if self._ydl:
self._ydl.report_warning(message, only_once)
def error(self, message):
if self._ydl:
self._ydl.report_error(message)
def load_cookies(cookie_file, browser_specification, ydl):
cookie_jars = []
if browser_specification is not None:
browser_name, profile = _parse_browser_specification(*browser_specification)
cookie_jars.append(extract_cookies_from_browser(browser_name, profile, YDLLogger(ydl)))
if cookie_file is not None:
cookie_file = expand_path(cookie_file)
jar = YoutubeDLCookieJar(cookie_file)
if os.access(cookie_file, os.R_OK):
jar.load(ignore_discard=True, ignore_expires=True)
cookie_jars.append(jar)
return _merge_cookie_jars(cookie_jars)
def extract_cookies_from_browser(browser_name, profile=None, logger=YDLLogger()):
if browser_name == 'firefox':
return _extract_firefox_cookies(profile, logger)
elif browser_name == 'safari':
return _extract_safari_cookies(profile, logger)
elif browser_name in CHROMIUM_BASED_BROWSERS:
return _extract_chrome_cookies(browser_name, profile, logger)
else:
raise ValueError('unknown browser: {}'.format(browser_name))
def _extract_firefox_cookies(profile, logger):
logger.info('Extracting cookies from firefox')
if not SQLITE_AVAILABLE:
logger.warning('Cannot extract cookies from firefox without sqlite3 support. '
'Please use a python interpreter compiled with sqlite3 support')
return YoutubeDLCookieJar()
if profile is None:
search_root = _firefox_browser_dir()
elif _is_path(profile):
search_root = profile
else:
search_root = os.path.join(_firefox_browser_dir(), profile)
cookie_database_path = _find_most_recently_used_file(search_root, 'cookies.sqlite')
if cookie_database_path is None:
raise FileNotFoundError('could not find firefox cookies database in {}'.format(search_root))
logger.debug('extracting from: "{}"'.format(cookie_database_path))
with tempfile.TemporaryDirectory(prefix='youtube_dl') as tmpdir:
cursor = None
try:
cursor = _open_database_copy(cookie_database_path, tmpdir)
cursor.execute('SELECT host, name, value, path, expiry, isSecure FROM moz_cookies')
jar = YoutubeDLCookieJar()
for host, name, value, path, expiry, is_secure in cursor.fetchall():
cookie = compat_cookiejar_Cookie(
version=0, name=name, value=value, port=None, port_specified=False,
domain=host, domain_specified=bool(host), domain_initial_dot=host.startswith('.'),
path=path, path_specified=bool(path), secure=is_secure, expires=expiry, discard=False,
comment=None, comment_url=None, rest={})
jar.set_cookie(cookie)
logger.info('Extracted {} cookies from firefox'.format(len(jar)))
return jar
finally:
if cursor is not None:
cursor.connection.close()
def _firefox_browser_dir():
if sys.platform in ('linux', 'linux2'):
return os.path.expanduser('~/.mozilla/firefox')
elif sys.platform == 'win32':
return os.path.expandvars(r'%APPDATA%\Mozilla\Firefox\Profiles')
elif sys.platform == 'darwin':
return os.path.expanduser('~/Library/Application Support/Firefox')
else:
raise ValueError('unsupported platform: {}'.format(sys.platform))
def _get_chromium_based_browser_settings(browser_name):
# https://chromium.googlesource.com/chromium/src/+/HEAD/docs/user_data_dir.md
if sys.platform in ('linux', 'linux2'):
config = _config_home()
browser_dir = {
'brave': os.path.join(config, 'BraveSoftware/Brave-Browser'),
'chrome': os.path.join(config, 'google-chrome'),
'chromium': os.path.join(config, 'chromium'),
'edge': os.path.join(config, 'microsoft-edge'),
'opera': os.path.join(config, 'opera'),
'vivaldi': os.path.join(config, 'vivaldi'),
}[browser_name]
elif sys.platform == 'win32':
appdata_local = os.path.expandvars('%LOCALAPPDATA%')
appdata_roaming = os.path.expandvars('%APPDATA%')
browser_dir = {
'brave': os.path.join(appdata_local, r'BraveSoftware\Brave-Browser\User Data'),
'chrome': os.path.join(appdata_local, r'Google\Chrome\User Data'),
'chromium': os.path.join(appdata_local, r'Chromium\User Data'),
'edge': os.path.join(appdata_local, r'Microsoft\Edge\User Data'),
'opera': os.path.join(appdata_roaming, r'Opera Software\Opera Stable'),
'vivaldi': os.path.join(appdata_local, r'Vivaldi\User Data'),
}[browser_name]
elif sys.platform == 'darwin':
appdata = os.path.expanduser('~/Library/Application Support')
browser_dir = {
'brave': os.path.join(appdata, 'BraveSoftware/Brave-Browser'),
'chrome': os.path.join(appdata, 'Google/Chrome'),
'chromium': os.path.join(appdata, 'Chromium'),
'edge': os.path.join(appdata, 'Microsoft Edge'),
'opera': os.path.join(appdata, 'com.operasoftware.Opera'),
'vivaldi': os.path.join(appdata, 'Vivaldi'),
}[browser_name]
else:
raise ValueError('unsupported platform: {}'.format(sys.platform))
# Linux keyring names can be determined by snooping on dbus while opening the browser in KDE:
# dbus-monitor "interface='org.kde.KWallet'" "type=method_return"
keyring_name = {
'brave': 'Brave',
'chrome': 'Chrome',
'chromium': 'Chromium',
'edge': 'Microsoft Edge' if sys.platform == 'darwin' else 'Chromium',
'opera': 'Opera' if sys.platform == 'darwin' else 'Chromium',
'vivaldi': 'Vivaldi' if sys.platform == 'darwin' else 'Chrome',
}[browser_name]
browsers_without_profiles = {'opera'}
return {
'browser_dir': browser_dir,
'keyring_name': keyring_name,
'supports_profiles': browser_name not in browsers_without_profiles
}
def _extract_chrome_cookies(browser_name, profile, logger):
logger.info('Extracting cookies from {}'.format(browser_name))
if not SQLITE_AVAILABLE:
logger.warning(('Cannot extract cookies from {} without sqlite3 support. '
'Please use a python interpreter compiled with sqlite3 support').format(browser_name))
return YoutubeDLCookieJar()
config = _get_chromium_based_browser_settings(browser_name)
if profile is None:
search_root = config['browser_dir']
elif _is_path(profile):
search_root = profile
config['browser_dir'] = os.path.dirname(profile) if config['supports_profiles'] else profile
else:
if config['supports_profiles']:
search_root = os.path.join(config['browser_dir'], profile)
else:
logger.error('{} does not support profiles'.format(browser_name))
search_root = config['browser_dir']
cookie_database_path = _find_most_recently_used_file(search_root, 'Cookies')
if cookie_database_path is None:
raise FileNotFoundError('could not find {} cookies database in "{}"'.format(browser_name, search_root))
logger.debug('extracting from: "{}"'.format(cookie_database_path))
decryptor = get_cookie_decryptor(config['browser_dir'], config['keyring_name'], logger)
with tempfile.TemporaryDirectory(prefix='youtube_dl') as tmpdir:
cursor = None
try:
cursor = _open_database_copy(cookie_database_path, tmpdir)
cursor.connection.text_factory = bytes
column_names = _get_column_names(cursor, 'cookies')
secure_column = 'is_secure' if 'is_secure' in column_names else 'secure'
cursor.execute('SELECT host_key, name, value, encrypted_value, path, '
'expires_utc, {} FROM cookies'.format(secure_column))
jar = YoutubeDLCookieJar()
failed_cookies = 0
for host_key, name, value, encrypted_value, path, expires_utc, is_secure in cursor.fetchall():
host_key = host_key.decode('utf-8')
name = name.decode('utf-8')
value = value.decode('utf-8')
path = path.decode('utf-8')
if not value and encrypted_value:
value = decryptor.decrypt(encrypted_value)
if value is None:
failed_cookies += 1
continue
cookie = compat_cookiejar_Cookie(
version=0, name=name, value=value, port=None, port_specified=False,
domain=host_key, domain_specified=bool(host_key), domain_initial_dot=host_key.startswith('.'),
path=path, path_specified=bool(path), secure=is_secure, expires=expires_utc, discard=False,
comment=None, comment_url=None, rest={})
jar.set_cookie(cookie)
if failed_cookies > 0:
failed_message = ' ({} could not be decrypted)'.format(failed_cookies)
else:
failed_message = ''
logger.info('Extracted {} cookies from {}{}'.format(len(jar), browser_name, failed_message))
return jar
finally:
if cursor is not None:
cursor.connection.close()
class ChromeCookieDecryptor:
"""
Overview:
Linux:
- cookies are either v10 or v11
- v10: AES-CBC encrypted with a fixed key
- v11: AES-CBC encrypted with an OS protected key (keyring)
- v11 keys can be stored in various places depending on the activate desktop environment [2]
Mac:
- cookies are either v10 or not v10
- v10: AES-CBC encrypted with an OS protected key (keyring) and more key derivation iterations than linux
- not v10: 'old data' stored as plaintext
Windows:
- cookies are either v10 or not v10
- v10: AES-GCM encrypted with a key which is encrypted with DPAPI
- not v10: encrypted with DPAPI
Sources:
- [1] https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/
- [2] https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/key_storage_linux.cc
- KeyStorageLinux::CreateService
"""
def decrypt(self, encrypted_value):
raise NotImplementedError
def get_cookie_decryptor(browser_root, browser_keyring_name, logger):
if sys.platform in ('linux', 'linux2'):
return LinuxChromeCookieDecryptor(browser_keyring_name, logger)
elif sys.platform == 'darwin':
return MacChromeCookieDecryptor(browser_keyring_name, logger)
elif sys.platform == 'win32':
return WindowsChromeCookieDecryptor(browser_root, logger)
else:
raise NotImplementedError('Chrome cookie decryption is not supported '
'on this platform: {}'.format(sys.platform))
class LinuxChromeCookieDecryptor(ChromeCookieDecryptor):
def __init__(self, browser_keyring_name, logger):
self._logger = logger
self._v10_key = self.derive_key(b'peanuts')
if KEYRING_AVAILABLE:
self._v11_key = self.derive_key(_get_linux_keyring_password(browser_keyring_name))
else:
self._v11_key = None
@staticmethod
def derive_key(password):
# values from
# https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/os_crypt_linux.cc
return pbkdf2_sha1(password, salt=b'saltysalt', iterations=1, key_length=16)
def decrypt(self, encrypted_value):
version = encrypted_value[:3]
ciphertext = encrypted_value[3:]
if version == b'v10':
return _decrypt_aes_cbc(ciphertext, self._v10_key, self._logger)
elif version == b'v11':
if self._v11_key is None:
self._logger.warning('cannot decrypt cookie as the `keyring` module is not installed. '
'Please install by running `python3 -m pip install keyring`. '
'Note that depending on your platform, additional packages may be required '
'to access the keyring, see https://pypi.org/project/keyring', only_once=True)
return None
return _decrypt_aes_cbc(ciphertext, self._v11_key, self._logger)
else:
return None
class MacChromeCookieDecryptor(ChromeCookieDecryptor):
def __init__(self, browser_keyring_name, logger):
self._logger = logger
password = _get_mac_keyring_password(browser_keyring_name)
self._v10_key = None if password is None else self.derive_key(password)
@staticmethod
def derive_key(password):
# values from
# https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/os_crypt_mac.mm
return pbkdf2_sha1(password, salt=b'saltysalt', iterations=1003, key_length=16)
def decrypt(self, encrypted_value):
version = encrypted_value[:3]
ciphertext = encrypted_value[3:]
if version == b'v10':
if self._v10_key is None:
self._logger.warning('cannot decrypt v10 cookies: no key found', only_once=True)
return None
return _decrypt_aes_cbc(ciphertext, self._v10_key, self._logger)
else:
# other prefixes are considered 'old data' which were stored as plaintext
# https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/os_crypt_mac.mm
return encrypted_value
class WindowsChromeCookieDecryptor(ChromeCookieDecryptor):
def __init__(self, browser_root, logger):
self._logger = logger
self._v10_key = _get_windows_v10_key(browser_root, logger)
def decrypt(self, encrypted_value):
version = encrypted_value[:3]
ciphertext = encrypted_value[3:]
if version == b'v10':
if self._v10_key is None:
self._logger.warning('cannot decrypt v10 cookies: no key found', only_once=True)
return None
elif not CRYPTO_AVAILABLE:
self._logger.warning('cannot decrypt cookie as the `pycryptodome` module is not installed. '
'Please install by running `python3 -m pip install pycryptodome`',
only_once=True)
return None
# https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/os_crypt_win.cc
# kNonceLength
nonce_length = 96 // 8
# boringssl
# EVP_AEAD_AES_GCM_TAG_LEN
authentication_tag_length = 16
raw_ciphertext = ciphertext
nonce = raw_ciphertext[:nonce_length]
ciphertext = raw_ciphertext[nonce_length:-authentication_tag_length]
authentication_tag = raw_ciphertext[-authentication_tag_length:]
return _decrypt_aes_gcm(ciphertext, self._v10_key, nonce, authentication_tag, self._logger)
else:
# any other prefix means the data is DPAPI encrypted
# https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/os_crypt/os_crypt_win.cc
return _decrypt_windows_dpapi(encrypted_value, self._logger).decode('utf-8')
def _extract_safari_cookies(profile, logger):
if profile is not None:
logger.error('safari does not support profiles')
if sys.platform != 'darwin':
raise ValueError('unsupported platform: {}'.format(sys.platform))
cookies_path = os.path.expanduser('~/Library/Cookies/Cookies.binarycookies')
if not os.path.isfile(cookies_path):
raise FileNotFoundError('could not find safari cookies database')
with open(cookies_path, 'rb') as f:
cookies_data = f.read()
jar = parse_safari_cookies(cookies_data, logger=logger)
logger.info('Extracted {} cookies from safari'.format(len(jar)))
return jar
class ParserError(Exception):
pass
class DataParser:
def __init__(self, data, logger):
self._data = data
self.cursor = 0
self._logger = logger
def read_bytes(self, num_bytes):
if num_bytes < 0:
raise ParserError('invalid read of {} bytes'.format(num_bytes))
end = self.cursor + num_bytes
if end > len(self._data):
raise ParserError('reached end of input')
data = self._data[self.cursor:end]
self.cursor = end
return data
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 cookie because UTF-8 decoding failed')
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):
if KEYRING_AVAILABLE:
password = keyring.get_password('{} Safe Storage'.format(browser_keyring_name), browser_keyring_name)
return password.encode('utf-8')
else:
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)
return stdout
except BaseException:
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_to_intlist(ciphertext),
bytes_to_intlist(key),
bytes_to_intlist(initialization_vector))
padding_length = plaintext[-1]
try:
return intlist_to_bytes(plaintext[:-padding_length]).decode('utf-8')
except UnicodeDecodeError:
logger.warning('failed to decrypt cookie because UTF-8 decoding failed. Possibly the key is wrong?')
return None
def _decrypt_aes_gcm(ciphertext, key, nonce, authentication_tag, logger):
cipher = AES.new(key, AES.MODE_GCM, nonce)
try:
plaintext = cipher.decrypt_and_verify(ciphertext, authentication_tag)
except ValueError:
logger.warning('failed to decrypt cookie because the MAC check failed. Possibly the key is wrong?')
return None
try:
return plaintext.decode('utf-8')
except UnicodeDecodeError:
logger.warning('failed to decrypt cookie because UTF-8 decoding failed. Possibly the key is wrong?')
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')
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):
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
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