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[fragments] Pad fragments before decrypting (#1298)

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Closes #197, #1297, #1007
Authored by: shirt-dev
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shirt 2021-10-17 22:44:20 -04:00 committed by GitHub
parent 920134b2e5
commit 373475f035
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1 changed files with 2 additions and 1 deletions
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yt_dlp/downloader/fragment.py
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@ -355,7 +355,8 @@ def decrypt_fragment(fragment, frag_content):
# not what it decrypts to.
if self.params.get('test', False):
return frag_content
decrypted_data = aes_cbc_decrypt_bytes(frag_content, decrypt_info['KEY'], iv)
padding_len = 16 - (len(frag_content) % 16)
decrypted_data = aes_cbc_decrypt_bytes(frag_content + bytes([padding_len] * padding_len), decrypt_info['KEY'], iv)
return decrypted_data[:-decrypted_data[-1]]
return decrypt_fragment