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HTTP 404 error on some streams

See original GitHub issue

version 9.5.1 I have 404 error on some streams from this video, and many other (1/10 of all videos from my big list), after download()

yt = YouTube('https://www.youtube.com/watch?v=8GPULK6XYhU')

[<Stream: itag="22" mime_type="video/mp4" res="720p" fps="30fps" vcodec="avc1.64001F" acodec="mp4a.40.2">,
 <Stream: itag="43" mime_type="video/webm" res="360p" fps="30fps" vcodec="vp8.0" acodec="vorbis">,
 <Stream: itag="18" mime_type="video/mp4" res="360p" fps="30fps" vcodec="avc1.42001E" acodec="mp4a.40.2">,
 <Stream: itag="137" mime_type="video/mp4" res="1080p" fps="30fps" vcodec="avc1.64001e">,
 <Stream: itag="248" mime_type="video/webm" res="1080p" fps="30fps" vcodec="vp9">,
 <Stream: itag="136" mime_type="video/mp4" res="720p" fps="30fps" vcodec="avc1.4d4016">...]

For example, first one is ok, but 4 and 6 are not. This is bug or something youtube related?

Issue Analytics

State:
Created 4 years ago
Comments:7 (1 by maintainers)

Top GitHub Comments

1reaction

FearlessENTcommented, Jul 20, 2019

@JuraPal I was reading through one of the previous issues, and the 403 problem has been fixed. The fix brings up a regex error, but that has also been fixed.

fixing 403: change line 42 and below to:

`if (‘signature=’ in url or (‘s’ not in stream and (‘&sig=’ in url or ‘&lsig=’ in url))): # For certain videos, YouTube will just provide them pre-signed, in # which case there’s no real magic to download them and we can skip # the whole signature descrambling entirely. logger.debug(‘signature found, skip decipher’) continue

    if js is not None:
        signature = cipher.get_signature(js, stream['s'])
    else:
        # signature not present in url (line 33), need js to descramble
        # TypeError caught in __main__
        raise TypeError('JS is None')

    logger.debug(
        'finished descrambling signature for itag=%s\n%s',
        stream['itag'], pprint.pformat(
            {
                's': stream['s'],
                'signature': signature,
            }, indent=2,
        ),
    )
    stream_manifest[i]['url'] = url + '&sig=' + signature`

This fixes the 403 error. Next issue is a regex problem.

Go to cipher.py and change line 38 to:

pattern = [ r'\b[cs]\s*&&\s*[adf]\.set$[^,]+\s*,\s*encodeURIComponent\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\(', r'\b[a-zA-Z0-9]+\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*encodeURIComponent\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\(', r'(?P<sig>[a-zA-Z0-9$]+)\s*=\s*function\(\s*a\s*$\s*{\s*a\s*=\s*a\.split$\s*""\s*$', r'(["\'])signature\1\s*,\s*(?P<sig>[a-zA-Z0-9$]+)$', r'\.sig\|\|(?P<sig>[a-zA-Z0-9$]+)\(', r'yt\.akamaized\.net/$\s*\|\|\s*.*?\s*[cs]\s*&&\s*[adf]\.set$[^,]+\s*,\s*(?:encodeURIComponent\s*\()?\s*(?P<si$', r'\b[cs]\s*&&\s*[adf]\.set\([^,]+\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(', r'\b[a-zA-Z0-9]+\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(', r'\bc\s*&&\s*a\.set\([^,]+\s*,\s*\([^)]*$\s*$\s*(?P<sig>[a-zA-Z0-9$]+)\(', r'\bc\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*\([^)]*$\s*$\s*(?P<sig>[a-zA-Z0-9$]+)\(', r'\bc\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*\([^)]*$\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\(' ]

This should fix the current issues.

0reactions

bhuiyanmobasshir94commented, Jul 3, 2021

pytube-10.8.5 got the fix in my machine