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plugin.api.http_session: enforce_content_length#3768

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bastimeyer:plugin/api/http_session/enforce-content-length
Jun 4, 2021
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plugin.api.http_session: enforce_content_length#3768
back-to merged 1 commit into
streamlink:masterfrom
bastimeyer:plugin/api/http_session/enforce-content-length

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@bastimeyer

@bastimeyer bastimeyer commented Jun 2, 2021

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Resolves #2365

This should resolve #2365, but I can't validate it myself with data of real HLS streams and don't want to spend time writing sophisticated tests for the entire upstream stack where this bug occurs.

See psf/requests#4956 (comment)

@bastimeyer bastimeyer mentioned this pull request Jun 2, 2021
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@bastimeyer

bastimeyer commented Jun 2, 2021

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Regarding the fix for encrypted HLS streams, this causes the HTTPSession to re-download the faulty/truncated segment. If the server however continues to respond with an incorrect Content-Length header or truncated response body, then there's not much that can be done.

@marmeladema

marmeladema commented Jun 2, 2021

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I have installed a patched version of streamlink and will report here in the next couple of days if I encounter the issue again.

@back-to back-to merged commit f22e3aa into streamlink:master Jun 4, 2021
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@marmeladema

marmeladema commented Jun 4, 2021

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I think this solved the issue! Thank you!

@bastimeyer bastimeyer deleted the plugin/api/http_session/enforce-content-length branch June 4, 2021 19:48
@rootxran

rootxran commented Jan 16, 2022 •
edited by bastimeyer
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I think this solved the issue! Thank you!

Resolves #2365

This should resolve #2365, but I can't validate it myself with data of real HLS streams and don't want to spend time writing sophisticated tests for the entire upstream stack where this bug occurs.

See psf/requests#4956 (comment)

ERROR = Padding is incorrect

How can I solve this problem in streamlink 3.0.3

streamlink --http-header "User-Agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36" --http-header "Referer=https://www.log2base2.com/" "https://d2bzjah96pmxyc.cloudfront.net/C/Functions/Recursion/index.m3u8" best -l debug -o rec.ts
[cli][debug] OS:         Windows 10
[cli][debug] Python:     3.9.8
[cli][debug] Streamlink: 3.0.3
[cli][debug] Requests(2.26.0), Socks(1.7.1), Websocket(1.2.1)
[cli][debug] Arguments:
[cli][debug]  url=https://d2bzjah96pmxyc.cloudfront.net/C/Functions/Recursion/index.m3u8
[cli][debug]  stream=['best']
[cli][debug]  --loglevel=debug
[cli][debug]  --output=rec.ts
[cli][debug]  --ffmpeg-ffmpeg=C:\Program Files (x86)\Streamlink\ffmpeg\ffmpeg.exe
[cli][debug]  --http-header=[('User-Agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36'), ('Referer', 'https://www.log2base2.com/')]
[cli][info] Found matching plugin hls for URL https://d2bzjah96pmxyc.cloudfront.net/C/Functions/Recursion/index.m3u8
[plugins.hls][debug] URL=https://d2bzjah96pmxyc.cloudfront.net/C/Functions/Recursion/index.m3u8; params={}
[utils.l10n][debug] Language code: en_GB
[stream.hls][debug] Using external audio tracks for stream 1080p (language=None, name=Default)
[stream.hls][debug] Using external audio tracks for stream 1080p_alt (language=None, name=Default)
[stream.hls][debug] Using external audio tracks for stream 576p (language=None, name=Default)
[stream.hls][debug] Using external audio tracks for stream 360p (language=None, name=Default)
[stream.hls][debug] Using external audio tracks for stream 224p (language=None, name=Default)
[stream.hls][debug] Using external audio tracks for stream 73k (language=None, name=Default)
[cli][info] Available streams: 73k (worst), 224p, 360p, 576p, 1080p_alt, 1080p (best)
[cli][info] Opening stream: 1080p (hls-multi)
[stream.ffmpegmux][debug] Opening hls substream
[stream.hls][debug] Reloading playlist
[stream.ffmpegmux][debug] Opening hls substream
[stream.hls][debug] Reloading playlist
[utils.named_pipe][info] Creating pipe streamlinkpipe-9412-1-4873
[utils.named_pipe][info] Creating pipe streamlinkpipe-9412-2-2555
[stream.ffmpegmux][debug] ffmpeg command: C:\Program Files (x86)\Streamlink\ffmpeg\ffmpeg.exe -nostats -y -i \\.\pipe\streamlinkpipe-9412-1-4873 -i \\.\pipe\streamlinkpipe-9412-2-2555 -c:v copy -c:a copy -map 0:v? -map 0:a? -map 1:a -f mpegts pipe:1
[stream.ffmpegmux][debug] Starting copy to pipe: \\.\pipe\streamlinkpipe-9412-1-4873
[stream.ffmpegmux][debug] Starting copy to pipe: \\.\pipe\streamlinkpipe-9412-2-2555
[cli][debug] Pre-buffering 8192 bytes
[stream.hls][debug] Segments in this playlist are encrypted
[stream.hls][debug] First Sequence: 0; Last Sequence: 24
[stream.hls][debug] Start offset: 0; Duration: None; Start Sequence: 0; End Sequence: 24
[stream.hls][debug] Adding segment 0 to queue
[stream.hls][debug] Adding segment 1 to queue
[stream.hls][debug] Adding segment 2 to queue
[stream.hls][debug] Adding segment 3 to queue
[stream.hls][debug] Adding segment 4 to queue
[stream.hls][debug] Adding segment 5 to queue
[stream.hls][debug] Adding segment 6 to queue
[stream.hls][debug] Adding segment 7 to queue
[stream.hls][debug] Adding segment 8 to queue
[stream.hls][debug] Adding segment 9 to queue
[stream.hls][debug] Adding segment 10 to queue
[stream.hls][debug] Adding segment 11 to queue
[stream.hls][debug] Adding segment 12 to queue
[stream.hls][debug] Adding segment 13 to queue
[stream.hls][debug] Adding segment 14 to queue
[stream.hls][debug] Adding segment 15 to queue
[stream.hls][debug] Adding segment 16 to queue
[stream.hls][debug] Adding segment 17 to queue
[stream.hls][debug] Adding segment 18 to queue
[stream.hls][debug] Adding segment 19 to queue
[stream.hls][debug] Adding segment 20 to queue
[stream.hls][debug] Adding segment 21 to queue
[stream.hls][debug] Segments in this playlist are encrypted
[stream.hls][debug] First Sequence: 0; Last Sequence: 25
[stream.hls][debug] Start offset: 0; Duration: None; Start Sequence: 0; End Sequence: 25
[stream.hls][debug] Adding segment 0 to queue
[stream.hls][debug] Adding segment 1 to queue
[stream.hls][debug] Adding segment 2 to queue
[stream.hls][debug] Adding segment 3 to queue
[stream.hls][debug] Adding segment 4 to queue
[stream.hls][debug] Adding segment 5 to queue
[stream.hls][debug] Adding segment 6 to queue
[stream.hls][debug] Adding segment 7 to queue
[stream.hls][debug] Adding segment 8 to queue
[stream.hls][debug] Adding segment 9 to queue
[stream.hls][debug] Adding segment 10 to queue
[stream.hls][debug] Adding segment 11 to queue
[stream.hls][debug] Adding segment 12 to queue
[stream.hls][debug] Adding segment 13 to queue
[stream.hls][debug] Adding segment 14 to queue
[stream.hls][debug] Adding segment 15 to queue
[stream.hls][debug] Adding segment 16 to queue
[stream.hls][debug] Adding segment 17 to queue
[stream.hls][debug] Adding segment 18 to queue
[stream.hls][debug] Adding segment 19 to queue
[stream.hls][debug] Adding segment 20 to queue
[stream.hls][debug] Adding segment 21 to queue
[stream.hls][debug] Segment 0 complete
[stream.hls][debug] Adding segment 22 to queue
Exception in thread Thread-HLSStreamWriter:
[stream.hls][debug] Segment 0 complete
Traceback (most recent call last):
  File "threading.py", line 973, in _bootstrap_inner
[stream.hls][debug] Adding segment 22 to queue
  File "C:\Program Files (x86)\Streamlink\pkgs\streamlink\stream\segmented.py", line 200, in run
    self.write(segment, result, *data)
  File "C:\Program Files (x86)\Streamlink\pkgs\streamlink\stream\hls.py", line 162, in write
    return self._write(sequence, *args, **kwargs)
  File "C:\Program Files (x86)\Streamlink\pkgs\streamlink\stream\hls.py", line 192, in _write
    chunk = unpad(decrypted_chunk, AES.block_size, style="pkcs7")
  File "C:\Program Files (x86)\Streamlink\pkgs\Crypto\Util\Padding.py", line 92, in unpad
    raise ValueError("Padding is incorrect.")
ValueError: Padding is incorrect.
[cli][debug] Checking file output
[cli][debug] Writing stream to output
[stream.ffmpegmux][debug] Pipe copy complete: \\.\pipe\streamlinkpipe-9412-1-4873
Exception in thread Thread-HLSStreamWriter:
Traceback (most recent call last):
  File "threading.py", line 973, in _bootstrap_inner
  File "C:\Program Files (x86)\Streamlink\pkgs\streamlink\stream\segmented.py", line 200, in run
    self.write(segment, result, *data)
  File "C:\Program Files (x86)\Streamlink\pkgs\streamlink\stream\hls.py", line 162, in write
    return self._write(sequence, *args, **kwargs)
  File "C:\Program Files (x86)\Streamlink\pkgs\streamlink\stream\hls.py", line 192, in _write
    chunk = unpad(decrypted_chunk, AES.block_size, style="pkcs7")
  File "C:\Program Files (x86)\Streamlink\pkgs\Crypto\Util\Padding.py", line 92, in unpad
    raise ValueError("Padding is incorrect.")
ValueError: Padding is incorrect.

This was referenced May 15, 2022
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How to avoid "Input is not padded or padding is corrupt" error?

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@bastimeyer @marmeladema @rootxran @back-to