Deprecate bytes_to_intlist/intlist_to_bytes

devscripts/generate_aes_testdata.py

@@ -11,13 +11,12 @@ import codecs
 import subprocess
 
 from yt_dlp.aes import aes_encrypt, key_expansion
-from yt_dlp.utils import intlist_to_bytes
 
 secret_msg = b'Secret message goes here'
 
 
 def hex_str(int_list):
-    return codecs.encode(intlist_to_bytes(int_list), 'hex')
+    return codecs.encode(bytes(int_list), 'hex')
 
 
 def openssl_encode(algo, key, iv):

pyproject.toml

@@ -313,6 +313,8 @@ banned-from = [
 "yt_dlp.compat.compat_urllib_parse_urlparse".msg = "Use `urllib.parse.urlparse` instead."
 "yt_dlp.compat.compat_shlex_quote".msg = "Use `yt_dlp.utils.shell_quote` instead."
 "yt_dlp.utils.error_to_compat_str".msg = "Use `str` instead."
+"yt_dlp.utils.bytes_to_intlist".msg = "Use `list` instead."
+"yt_dlp.utils.intlist_to_bytes".msg = "Use `bytes` instead."
 
 [tool.autopep8]
 max_line_length = 120

test/test_aes.py

@@ -27,7 +27,6 @@ from yt_dlp.aes import (
     pad_block,
 )
 from yt_dlp.dependencies import Cryptodome
-from yt_dlp.utils import bytes_to_intlist, intlist_to_bytes
 
 # the encrypted data can be generate with 'devscripts/generate_aes_testdata.py'
 
@@ -40,33 +39,33 @@ class TestAES(unittest.TestCase):
     def test_encrypt(self):
         msg = b'message'
         key = list(range(16))
-        encrypted = aes_encrypt(bytes_to_intlist(msg), key)
+        encrypted = aes_encrypt(list(msg), key)
-        decrypted = intlist_to_bytes(aes_decrypt(encrypted, key))
+        decrypted = bytes(aes_decrypt(encrypted, key))
         self.assertEqual(decrypted, msg)
 
     def test_cbc_decrypt(self):
         data = b'\x97\x92+\xe5\x0b\xc3\x18\x91ky9m&\xb3\xb5@\xe6\x27\xc2\x96.\xc8u\x88\xab9-[\x9e|\xf1\xcd'
-        decrypted = intlist_to_bytes(aes_cbc_decrypt(bytes_to_intlist(data), self.key, self.iv))
+        decrypted = bytes(aes_cbc_decrypt(list(data), self.key, self.iv))
         self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg)
         if Cryptodome.AES:
-            decrypted = aes_cbc_decrypt_bytes(data, intlist_to_bytes(self.key), intlist_to_bytes(self.iv))
+            decrypted = aes_cbc_decrypt_bytes(data, bytes(self.key), bytes(self.iv))
             self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg)
 
     def test_cbc_encrypt(self):
-        data = bytes_to_intlist(self.secret_msg)
+        data = list(self.secret_msg)
-        encrypted = intlist_to_bytes(aes_cbc_encrypt(data, self.key, self.iv))
+        encrypted = bytes(aes_cbc_encrypt(data, self.key, self.iv))
         self.assertEqual(
             encrypted,
             b'\x97\x92+\xe5\x0b\xc3\x18\x91ky9m&\xb3\xb5@\xe6\'\xc2\x96.\xc8u\x88\xab9-[\x9e|\xf1\xcd')
 
     def test_ctr_decrypt(self):
-        data = bytes_to_intlist(b'\x03\xc7\xdd\xd4\x8e\xb3\xbc\x1a*O\xdc1\x12+8Aio\xd1z\xb5#\xaf\x08')
+        data = list(b'\x03\xc7\xdd\xd4\x8e\xb3\xbc\x1a*O\xdc1\x12+8Aio\xd1z\xb5#\xaf\x08')
-        decrypted = intlist_to_bytes(aes_ctr_decrypt(data, self.key, self.iv))
+        decrypted = bytes(aes_ctr_decrypt(data, self.key, self.iv))
         self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg)
 
     def test_ctr_encrypt(self):
-        data = bytes_to_intlist(self.secret_msg)
+        data = list(self.secret_msg)
-        encrypted = intlist_to_bytes(aes_ctr_encrypt(data, self.key, self.iv))
+        encrypted = bytes(aes_ctr_encrypt(data, self.key, self.iv))
         self.assertEqual(
             encrypted,
             b'\x03\xc7\xdd\xd4\x8e\xb3\xbc\x1a*O\xdc1\x12+8Aio\xd1z\xb5#\xaf\x08')
@@ -75,47 +74,47 @@ class TestAES(unittest.TestCase):
         data = b'\x159Y\xcf5eud\x90\x9c\x85&]\x14\x1d\x0f.\x08\xb4T\xe4/\x17\xbd'
         authentication_tag = b'\xe8&I\x80rI\x07\x9d}YWuU@:e'
 
-        decrypted = intlist_to_bytes(aes_gcm_decrypt_and_verify(
+        decrypted = bytes(aes_gcm_decrypt_and_verify(
-            bytes_to_intlist(data), self.key, bytes_to_intlist(authentication_tag), self.iv[:12]))
+            list(data), self.key, list(authentication_tag), self.iv[:12]))
         self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg)
         if Cryptodome.AES:
             decrypted = aes_gcm_decrypt_and_verify_bytes(
-                data, intlist_to_bytes(self.key), authentication_tag, intlist_to_bytes(self.iv[:12]))
+                data, bytes(self.key), authentication_tag, bytes(self.iv[:12]))
             self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg)
 
     def test_decrypt_text(self):
-        password = intlist_to_bytes(self.key).decode()
+        password = bytes(self.key).decode()
         encrypted = base64.b64encode(
-            intlist_to_bytes(self.iv[:8])
+            bytes(self.iv[:8])
             + b'\x17\x15\x93\xab\x8d\x80V\xcdV\xe0\t\xcdo\xc2\xa5\xd8ksM\r\xe27N\xae',
         ).decode()
         decrypted = (aes_decrypt_text(encrypted, password, 16))
         self.assertEqual(decrypted, self.secret_msg)
 
-        password = intlist_to_bytes(self.key).decode()
+        password = bytes(self.key).decode()
         encrypted = base64.b64encode(
-            intlist_to_bytes(self.iv[:8])
+            bytes(self.iv[:8])
             + b'\x0b\xe6\xa4\xd9z\x0e\xb8\xb9\xd0\xd4i_\x85\x1d\x99\x98_\xe5\x80\xe7.\xbf\xa5\x83',
         ).decode()
         decrypted = (aes_decrypt_text(encrypted, password, 32))
         self.assertEqual(decrypted, self.secret_msg)
 
     def test_ecb_encrypt(self):
-        data = bytes_to_intlist(self.secret_msg)
+        data = list(self.secret_msg)
-        encrypted = intlist_to_bytes(aes_ecb_encrypt(data, self.key))
+        encrypted = bytes(aes_ecb_encrypt(data, self.key))
         self.assertEqual(
             encrypted,
             b'\xaa\x86]\x81\x97>\x02\x92\x9d\x1bR[[L/u\xd3&\xd1(h\xde{\x81\x94\xba\x02\xae\xbd\xa6\xd0:')
 
     def test_ecb_decrypt(self):
-        data = bytes_to_intlist(b'\xaa\x86]\x81\x97>\x02\x92\x9d\x1bR[[L/u\xd3&\xd1(h\xde{\x81\x94\xba\x02\xae\xbd\xa6\xd0:')
+        data = list(b'\xaa\x86]\x81\x97>\x02\x92\x9d\x1bR[[L/u\xd3&\xd1(h\xde{\x81\x94\xba\x02\xae\xbd\xa6\xd0:')
-        decrypted = intlist_to_bytes(aes_ecb_decrypt(data, self.key, self.iv))
+        decrypted = bytes(aes_ecb_decrypt(data, self.key, self.iv))
         self.assertEqual(decrypted.rstrip(b'\x08'), self.secret_msg)
 
     def test_key_expansion(self):
         key = '4f6bdaa39e2f8cb07f5e722d9edef314'
 
-        self.assertEqual(key_expansion(bytes_to_intlist(bytearray.fromhex(key))), [
+        self.assertEqual(key_expansion(list(bytearray.fromhex(key))), [
             0x4F, 0x6B, 0xDA, 0xA3, 0x9E, 0x2F, 0x8C, 0xB0, 0x7F, 0x5E, 0x72, 0x2D, 0x9E, 0xDE, 0xF3, 0x14,
             0x53, 0x66, 0x20, 0xA8, 0xCD, 0x49, 0xAC, 0x18, 0xB2, 0x17, 0xDE, 0x35, 0x2C, 0xC9, 0x2D, 0x21,
             0x8C, 0xBE, 0xDD, 0xD9, 0x41, 0xF7, 0x71, 0xC1, 0xF3, 0xE0, 0xAF, 0xF4, 0xDF, 0x29, 0x82, 0xD5,

test/test_utils.py

@@ -69,7 +69,6 @@ from yt_dlp.utils import (
     get_elements_html_by_class,
     get_elements_text_and_html_by_attribute,
     int_or_none,
-    intlist_to_bytes,
     iri_to_uri,
     is_html,
     join_nonempty,
@@ -1310,11 +1309,6 @@ class TestUtil(unittest.TestCase):
         self.assertEqual(clean_html('a:\n   "b"'), 'a: "b"')
         self.assertEqual(clean_html('a<br>\xa0b'), 'a\nb')
 
-    def test_intlist_to_bytes(self):
-        self.assertEqual(
-            intlist_to_bytes([0, 1, 127, 128, 255]),
-            b'\x00\x01\x7f\x80\xff')
-
     def test_args_to_str(self):
         self.assertEqual(
             args_to_str(['foo', 'ba/r', '-baz', '2 be', '']),

yt_dlp/aes.py

@@ -3,7 +3,6 @@ from math import ceil
 
 from .compat import compat_ord
 from .dependencies import Cryptodome
-from .utils import bytes_to_intlist, intlist_to_bytes
 
 if Cryptodome.AES:
     def aes_cbc_decrypt_bytes(data, key, iv):
@@ -17,15 +16,15 @@ if Cryptodome.AES:
 else:
     def aes_cbc_decrypt_bytes(data, key, iv):
         """ Decrypt bytes with AES-CBC using native implementation since pycryptodome is unavailable """
-        return intlist_to_bytes(aes_cbc_decrypt(*map(bytes_to_intlist, (data, key, iv))))
+        return bytes(aes_cbc_decrypt(*map(list, (data, key, iv))))
 
     def aes_gcm_decrypt_and_verify_bytes(data, key, tag, nonce):
         """ Decrypt bytes with AES-GCM using native implementation since pycryptodome is unavailable """
-        return intlist_to_bytes(aes_gcm_decrypt_and_verify(*map(bytes_to_intlist, (data, key, tag, nonce))))
+        return bytes(aes_gcm_decrypt_and_verify(*map(list, (data, key, tag, nonce))))
 
 
 def aes_cbc_encrypt_bytes(data, key, iv, **kwargs):
-    return intlist_to_bytes(aes_cbc_encrypt(*map(bytes_to_intlist, (data, key, iv)), **kwargs))
+    return bytes(aes_cbc_encrypt(*map(list, (data, key, iv)), **kwargs))
 
 
 BLOCK_SIZE_BYTES = 16
@@ -221,7 +220,7 @@ def aes_gcm_decrypt_and_verify(data, key, tag, nonce):
         j0 = [*nonce, 0, 0, 0, 1]
     else:
         fill = (BLOCK_SIZE_BYTES - (len(nonce) % BLOCK_SIZE_BYTES)) % BLOCK_SIZE_BYTES + 8
-        ghash_in = nonce + [0] * fill + bytes_to_intlist((8 * len(nonce)).to_bytes(8, 'big'))
+        ghash_in = nonce + [0] * fill + list((8 * len(nonce)).to_bytes(8, 'big'))
         j0 = ghash(hash_subkey, ghash_in)
 
     # TODO: add nonce support to aes_ctr_decrypt
@@ -235,8 +234,8 @@ def aes_gcm_decrypt_and_verify(data, key, tag, nonce):
         hash_subkey,
         data
         + [0] * (BLOCK_SIZE_BYTES - len(data) + pad_len)        # pad
-        + bytes_to_intlist((0 * 8).to_bytes(8, 'big')           # length of associated data
+        + list((0 * 8).to_bytes(8, 'big')           # length of associated data
-                           + ((len(data) * 8).to_bytes(8, 'big'))),  # length of data
+               + ((len(data) * 8).to_bytes(8, 'big'))),  # length of data
     )
 
     if tag != aes_ctr_encrypt(s_tag, key, j0):
@@ -300,8 +299,8 @@ def aes_decrypt_text(data, password, key_size_bytes):
     """
     NONCE_LENGTH_BYTES = 8
 
-    data = bytes_to_intlist(base64.b64decode(data))
+    data = list(base64.b64decode(data))
-    password = bytes_to_intlist(password.encode())
+    password = list(password.encode())
 
     key = password[:key_size_bytes] + [0] * (key_size_bytes - len(password))
     key = aes_encrypt(key[:BLOCK_SIZE_BYTES], key_expansion(key)) * (key_size_bytes // BLOCK_SIZE_BYTES)
@@ -310,7 +309,7 @@ def aes_decrypt_text(data, password, key_size_bytes):
     cipher = data[NONCE_LENGTH_BYTES:]
 
     decrypted_data = aes_ctr_decrypt(cipher, key, nonce + [0] * (BLOCK_SIZE_BYTES - NONCE_LENGTH_BYTES))
-    return intlist_to_bytes(decrypted_data)
+    return bytes(decrypted_data)
 
 
 RCON = (0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36)

yt_dlp/extractor/abematv.py

@@ -18,10 +18,8 @@ from ..networking.exceptions import TransportError
 from ..utils import (
     ExtractorError,
     OnDemandPagedList,
-    bytes_to_intlist,
     decode_base_n,
     int_or_none,
-    intlist_to_bytes,
     time_seconds,
     traverse_obj,
     update_url_query,
@@ -72,15 +70,15 @@ class AbemaLicenseRH(RequestHandler):
             })
 
         res = decode_base_n(license_response['k'], table=self._STRTABLE)
-        encvideokey = bytes_to_intlist(struct.pack('>QQ', res >> 64, res & 0xffffffffffffffff))
+        encvideokey = list(struct.pack('>QQ', res >> 64, res & 0xffffffffffffffff))
 
         h = hmac.new(
             binascii.unhexlify(self._HKEY),
             (license_response['cid'] + self.ie._DEVICE_ID).encode(),
             digestmod=hashlib.sha256)
-        enckey = bytes_to_intlist(h.digest())
+        enckey = list(h.digest())
 
-        return intlist_to_bytes(aes_ecb_decrypt(encvideokey, enckey))
+        return bytes(aes_ecb_decrypt(encvideokey, enckey))
 
 
 class AbemaTVBaseIE(InfoExtractor):

yt_dlp/extractor/adn.py

@@ -11,11 +11,9 @@ from ..networking.exceptions import HTTPError
 from ..utils import (
     ExtractorError,
     ass_subtitles_timecode,
-    bytes_to_intlist,
     bytes_to_long,
     float_or_none,
     int_or_none,
-    intlist_to_bytes,
     join_nonempty,
     long_to_bytes,
     parse_iso8601,
@@ -198,7 +196,7 @@ Format: Marked,Start,End,Style,Name,MarginL,MarginR,MarginV,Effect,Text'''
 
         links_url = try_get(options, lambda x: x['video']['url']) or (video_base_url + 'link')
         self._K = ''.join(random.choices('0123456789abcdef', k=16))
-        message = bytes_to_intlist(json.dumps({
+        message = list(json.dumps({
             'k': self._K,
             't': token,
         }))
@@ -207,7 +205,7 @@ Format: Marked,Start,End,Style,Name,MarginL,MarginR,MarginV,Effect,Text'''
         # a different random padding
         links_data = None
         for _ in range(3):
-            padded_message = intlist_to_bytes(pkcs1pad(message, 128))
+            padded_message = bytes(pkcs1pad(message, 128))
             n, e = self._RSA_KEY
             encrypted_message = long_to_bytes(pow(bytes_to_long(padded_message), e, n))
             authorization = base64.b64encode(encrypted_message).decode()

yt_dlp/extractor/anvato.py

@@ -8,10 +8,8 @@ import time
 from .common import InfoExtractor
 from ..aes import aes_encrypt
 from ..utils import (
-    bytes_to_intlist,
     determine_ext,
     int_or_none,
-    intlist_to_bytes,
     join_nonempty,
     smuggle_url,
     strip_jsonp,
@@ -277,8 +275,8 @@ class AnvatoIE(InfoExtractor):
         server_time = self._server_time(access_key, video_id)
         input_data = f'{server_time}~{md5_text(video_data_url)}~{md5_text(server_time)}'
 
-        auth_secret = intlist_to_bytes(aes_encrypt(
+        auth_secret = bytes(aes_encrypt(
-            bytes_to_intlist(input_data[:64]), bytes_to_intlist(self._AUTH_KEY)))
+            list(input_data[:64]), list(self._AUTH_KEY)))
         query = {
             'X-Anvato-Adst-Auth': base64.b64encode(auth_secret).decode('ascii'),
             'rtyp': 'fp',

yt_dlp/extractor/shemaroome.py

@@ -4,8 +4,6 @@ from .common import InfoExtractor
 from ..aes import aes_cbc_decrypt, unpad_pkcs7
 from ..utils import (
     ExtractorError,
-    bytes_to_intlist,
-    intlist_to_bytes,
     unified_strdate,
 )
 
@@ -68,10 +66,10 @@ class ShemarooMeIE(InfoExtractor):
         data_json = self._download_json('https://www.shemaroome.com/users/user_all_lists', video_id, data=data.encode())
         if not data_json.get('status'):
             raise ExtractorError('Premium videos cannot be downloaded yet.', expected=True)
-        url_data = bytes_to_intlist(base64.b64decode(data_json['new_play_url']))
+        url_data = list(base64.b64decode(data_json['new_play_url']))
-        key = bytes_to_intlist(base64.b64decode(data_json['key']))
+        key = list(base64.b64decode(data_json['key']))
         iv = [0] * 16
-        m3u8_url = unpad_pkcs7(intlist_to_bytes(aes_cbc_decrypt(url_data, key, iv))).decode('ascii')
+        m3u8_url = unpad_pkcs7(bytes(aes_cbc_decrypt(url_data, key, iv))).decode('ascii')
         headers = {'stream_key': data_json['stream_key']}
         formats, m3u8_subs = self._extract_m3u8_formats_and_subtitles(m3u8_url, video_id, fatal=False, headers=headers)
         for fmt in formats:

yt_dlp/utils/_deprecated.py

@@ -9,6 +9,7 @@ passthrough_module(__name__, '.._legacy', callback=lambda attr: warnings.warn(
 del passthrough_module
 
 
+import struct
 from ._utils import preferredencoding
 
 
@@ -37,3 +38,18 @@ def decodeOption(optval):
 
 def error_to_compat_str(err):
     return str(err)
+
+
+def bytes_to_intlist(bs):
+    if not bs:
+        return []
+    if isinstance(bs[0], int):  # Python 3
+        return list(bs)
+    else:
+        return [ord(c) for c in bs]
+
+
+def intlist_to_bytes(xs):
+    if not xs:
+        return b''
+    return struct.pack('%dB' % len(xs), *xs)

yt_dlp/utils/_utils.py

@@ -1503,21 +1503,6 @@ def deprecation_warning(msg, *, printer=None, stacklevel=0, **kwargs):
 deprecation_warning._cache = set()
 
 
-def bytes_to_intlist(bs):
-    if not bs:
-        return []
-    if isinstance(bs[0], int):  # Python 3
-        return list(bs)
-    else:
-        return [ord(c) for c in bs]
-
-
-def intlist_to_bytes(xs):
-    if not xs:
-        return b''
-    return struct.pack('%dB' % len(xs), *xs)
-
-
 class LockingUnsupportedError(OSError):
     msg = 'File locking is not supported'