heckyel/yt-local
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix signature decryption.

Browse Source 
The function body regex was capturing some unrelated new code before the actual function body. Example:

`function(a){a=a.split("");var b=[function(c,d){d=(d%c.length+c.length)%c.length;c.splice(-d).reverse().forEach(function(e){return c.unshift(e)}`

If you look closely, the closing bracket doesn't match the opening one. I have added `{` to the `[^\}]+` part to make sure it only captures matching brackets. Additionally, I've added `return a\.join\(""\)` to the end for good measure.
This commit is contained in:
James Taylor 2020-01-24 14:11:59 -08:00
parent c13a8f677d
commit b2a1f4ecfb
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
youtube/yt_data_extract/watch_extraction.py
View File

@ -457,7 +457,7 @@ def requires_decryption(info):
# adapted from youtube-dl and invidious: # adapted from youtube-dl and invidious:
# https://github.com/omarroth/invidious/blob/master/src/invidious/helpers/signatures.cr # https://github.com/omarroth/invidious/blob/master/src/invidious/helpers/signatures.cr
decrypt_function_re = re.compile(r'function\(a\)\{(a=a\.split\(""\)[^\}]+)\}') decrypt_function_re = re.compile(r'function\(a\)\{(a=a\.split\(""\)[^\}{]+)return a\.join\(""\)\}')
op_with_arg_re = re.compile(r'[^\.]+\.([^\(]+)\(a,(\d+)\)') op_with_arg_re = re.compile(r'[^\.]+\.([^\(]+)\(a,(\d+)\)')
def extract_decryption_function(info, base_js): def extract_decryption_function(info, base_js):
'''Insert decryption function into info. Return error string if not successful. '''Insert decryption function into info. Return error string if not successful.