[vlc-commits] [Git][videolan/vlc][3.0.x] 2 commits: youtube.lua: document an "n" descrambling transformation

[Hugo Beauzée-Luyssen (@chouquette)]

Hugo Beauzée-Luyssen pushed to branch 3.0.x at VideoLAN / VLC


Commits:
72fc254d by Pierre Ynard at 2021-11-25T14:15:22+01:00
youtube.lua: document an "n" descrambling transformation

(cherry picked from commit 84ba044df10bb7e9cbf293fa6eefbd77e370c398)
Signed-off-by: Hugo Beauzée-Luyssen <hugo at beauzee.fr>

- - - - -
ebbd474f by Pierre Ynard at 2021-11-25T14:15:35+01:00
youtube.lua: exponential form integers in "n" descrambling input data

They now appear; add support for parsing them.

Fixes #26317

(cherry picked from commit 6b5bc195a9811c6bb666ef3a30a100db7bb71092)
Signed-off-by: Hugo Beauzée-Luyssen <hugo at beauzee.fr>

- - - - -


1 changed file:

- share/lua/playlist/youtube.lua


Changes:

=====================================
share/lua/playlist/youtube.lua
=====================================
@@ -286,6 +286,7 @@ function n_descramble( nparam, js )
         alphabet2 = {
             func = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_",
             match = {
+                -- function(){for(var d=64,e=[];++d-e.length-32;){switch(d){case 58:d-=14;case 91:case 92:case 93:continue;case 123:d=47;case 94:case 95:case 96:continue;case 46:d=95}e.push(String.fromCharCode(d))}return e}
                 -- function(){for(var d=64,e=[];++d-e.length-32;)switch(d){case 46:d=95;default:e.push(String.fromCharCode(d));case 94:case 95:case 96:break;case 123:d-=76;case 92:case 93:continue;case 58:d=44;case 91:}return e}
                 "^function%(%){[^}]-case 58:d%-=14;",
                 "^function%(%){[^}]-case 58:d=44;",
@@ -375,7 +376,9 @@ function n_descramble( nparam, js )
         elseif string.match( datac, '^"[^"]*",' ) then
             el, datac = string.match( datac, '^"([^"]*)",(.*)$' )
         -- Integer input data
-        elseif string.match( datac, '^-?%d+,' ) then
+        -- 1818016376,-648890305,-1200559E3, ...
+        elseif string.match( datac, '^%-?%d+,' ) or
+               string.match( datac, '^%-?%d+[eE]%-?%d+,' ) then
             el, datac = string.match( datac, "^(.-),(.*)$" )
             el = tonumber( el )
         -- Reference to "n" parameter array



View it on GitLab: https://code.videolan.org/videolan/vlc/-/compare/7b43e275feb8835393cc1bad6771f561b591b557...ebbd474f79cd145094d2a5c524487938fe412934

-- 
View it on GitLab: https://code.videolan.org/videolan/vlc/-/compare/7b43e275feb8835393cc1bad6771f561b591b557...ebbd474f79cd145094d2a5c524487938fe412934
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