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[youtube] Improve player id extraction and add tests

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This commit is contained in:
Sergey M․ 2020-05-02 07:18:08 +07:00
parent 011e75e641
commit e40c758c2a
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2 changed files with 39 additions and 21 deletions
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22
test/test_youtube_signature.py
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@ -74,6 +74,28 @@ _TESTS = [
]
class TestPlayerInfo(unittest.TestCase):
def test_youtube_extract_player_info(self):
PLAYER_URLS = (
('https://www.youtube.com/s/player/64dddad9/player_ias.vflset/en_US/base.js', '64dddad9'),
# obsolete
('https://www.youtube.com/yts/jsbin/player_ias-vfle4-e03/en_US/base.js', 'vfle4-e03'),
('https://www.youtube.com/yts/jsbin/player_ias-vfl49f_g4/en_US/base.js', 'vfl49f_g4'),
('https://www.youtube.com/yts/jsbin/player_ias-vflCPQUIL/en_US/base.js', 'vflCPQUIL'),
('https://www.youtube.com/yts/jsbin/player-vflzQZbt7/en_US/base.js', 'vflzQZbt7'),
('https://www.youtube.com/yts/jsbin/player-en_US-vflaxXRn1/base.js', 'vflaxXRn1'),
('https://s.ytimg.com/yts/jsbin/html5player-en_US-vflXGBaUN.js', 'vflXGBaUN'),
('https://s.ytimg.com/yts/jsbin/html5player-en_US-vflKjOTVq/html5player.js', 'vflKjOTVq'),
('http://s.ytimg.com/yt/swfbin/watch_as3-vflrEm9Nq.swf', 'vflrEm9Nq'),
('https://s.ytimg.com/yts/swfbin/player-vflenCdZL/watch_as3.swf', 'vflenCdZL'),
)
for player_url, expected_player_id in PLAYER_URLS:
expected_player_type = player_url.split('.')[-1]
player_type, player_id = YoutubeIE._extract_player_info(player_url)
self.assertEqual(player_type, expected_player_type)
self.assertEqual(player_id, expected_player_id)
class TestSignature(unittest.TestCase):
def setUp(self):
TEST_DIR = os.path.dirname(os.path.abspath(__file__))

38
youtube_dl/extractor/youtube.py
View File

@ -426,6 +426,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
(?(1).+)? # if we found the ID, everything can follow
$""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE}
_NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
_PLAYER_INFO_RE = (
r'/(?P<id>[a-zA-Z0-9_-]{8,})/player_ias\.vflset(?:/[a-zA-Z]{2,3}_[a-zA-Z]{2,3})?/base\.(?P<ext>[a-z]+)$',
r'\b(?P<id>vfl[a-zA-Z0-9_-]+)\b.*?\.(?P<ext>[a-z]+)$',
)
_formats = {
'5': {'ext': 'flv', 'width': 400, 'height': 240, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
'6': {'ext': 'flv', 'width': 450, 'height': 270, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
@ -1273,14 +1277,18 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
""" Return a string representation of a signature """
return '.'.join(compat_str(len(part)) for part in example_sig.split('.'))
def _extract_signature_function(self, video_id, player_url, example_sig):
id_m = re.match(
r'.*?[-.](?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player(?:-new)?|(?:/[a-z]{2,3}_[A-Z]{2})?/base)?\.(?P<ext>[a-z]+)$',
player_url)
if not id_m:
@classmethod
def _extract_player_info(cls, player_url):
for player_re in cls._PLAYER_INFO_RE:
id_m = re.search(player_re, player_url)
if id_m:
break
else:
raise ExtractorError('Cannot identify player %r' % player_url)
player_type = id_m.group('ext')
player_id = id_m.group('id')
return id_m.group('ext'), id_m.group('id')
def _extract_signature_function(self, video_id, player_url, example_sig):
player_type, player_id = self._extract_player_info(player_url)
# Read from filesystem cache
func_id = '%s_%s_%s' % (
@ -2009,22 +2017,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
if self._downloader.params.get('verbose'):
if player_url is None:
player_version = 'unknown'
player_desc = 'unknown'
else:
if player_url.endswith('swf'):
player_version = self._search_regex(
r'-(.+?)(?:/watch_as3)?\.swf$', player_url,
'flash player', fatal=False)
player_desc = 'flash player %s' % player_version
else:
player_version = self._search_regex(
[r'html5player-([^/]+?)(?:/html5player(?:-new)?)?\.js',
r'(?:www|player(?:_ias)?)[-.]([^/]+)(?:/[a-z]{2,3}_[A-Z]{2})?/base\.js'],
player_url,
'html5 player', fatal=False)
player_desc = 'html5 player %s' % player_version
player_type, player_version = self._extract_player_info(player_url)
player_desc = '%s player %s' % ('flash' if player_type == 'swf' else 'html5', player_version)
parts_sizes = self._signature_cache_id(encrypted_sig)
self.to_screen('{%s} signature length %s, %s' %
(format_id, parts_sizes, player_desc))