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Code Issues Releases Activity

[cookies] Fix keyring fallback (#1078)

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The password returned by `security find-generic-password` has a newline at the end

Closes #1073
Authored by: mbway
This commit is contained in:
Matt Broadway 2021-09-25 16:34:16 +01:00 committed by GitHub
parent 8dc831f715
commit f440b14f87
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 12 additions and 7 deletions
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19
yt_dlp/cookies.py
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@ -353,7 +353,7 @@ def decrypt(self, encrypted_value):
class MacChromeCookieDecryptor(ChromeCookieDecryptor):
def __init__(self, browser_keyring_name, logger):
self._logger = logger
password = _get_mac_keyring_password(browser_keyring_name)
password = _get_mac_keyring_password(browser_keyring_name, logger)
self._v10_key = None if password is None else self.derive_key(password)
@staticmethod
@ -546,7 +546,7 @@ def _parse_safari_cookies_record(data, jar, logger):
p.skip_to(value_offset)
value = p.read_cstring()
except UnicodeDecodeError:
logger.warning('failed to parse cookie because UTF-8 decoding failed', only_once=True)
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')
@ -592,11 +592,13 @@ def _get_linux_keyring_password(browser_keyring_name):
return password.encode('utf-8')
def _get_mac_keyring_password(browser_keyring_name):
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'
@ -605,8 +607,11 @@ def _get_mac_keyring_password(browser_keyring_name):
stderr=subprocess.DEVNULL)
try:
stdout, stderr = process_communicate_or_kill(proc)
if stdout[-1:] == b'\n':
stdout = stdout[:-1]
return stdout
except BaseException:
except BaseException as e:
logger.warning(f'exception running find-generic-password: {type(e).__name__}({e})')
return None
@ -640,7 +645,7 @@ def _decrypt_aes_cbc(ciphertext, key, logger, initialization_vector=b' ' * 16):
try:
return plaintext[:-padding_length].decode('utf-8')
except UnicodeDecodeError:
logger.warning('failed to decrypt cookie because UTF-8 decoding failed. Possibly the key is wrong?', only_once=True)
logger.warning('failed to decrypt cookie (AES-CBC) because UTF-8 decoding failed. Possibly the key is wrong?', only_once=True)
return None
@ -648,13 +653,13 @@ 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 because the MAC check failed. Possibly the key is wrong?', only_once=True)
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 because UTF-8 decoding failed. Possibly the key is wrong?', only_once=True)
logger.warning('failed to decrypt cookie (AES-GCM) because UTF-8 decoding failed. Possibly the key is wrong?', only_once=True)
return None