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fix(Player): Fix extracting the n-token decipher algorithm again (#701)

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absidue
2024-07-25 15:07:00 +02:00
committed by GitHub
parent 090539b28f
commit 3048f70f60
1 changed files with 5 additions and 12 deletions
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17
src/core/Player.ts
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@@ -220,20 +220,13 @@ export default class Player {
}
static extractNSigSourceCode(data: string): string {
let sc = getStringBetweenStrings(data, 'b=a.split("")', '}return b.join("")}');
const match = data.match(/b=(?:a\.split\(|String\.prototype\.split\.call\(a,)""\).*?\}return (?:b\.join\(|Array\.prototype\.join\.call\(b,)""\)\}/s);
if (sc)
return `function descramble_nsig(a) { let b=a.split("")${sc}} return b.join(""); } descramble_nsig(nsig)`;
if (!match) {
throw new PlayerError('Failed to extract n-token decipher algorithm');
}
sc = getStringBetweenStrings(data, 'b=String.prototype.split.call(a,"")', '}return Array.prototype.join.call(b,"")}');
if (sc)
return `function descramble_nsig(a) { let b=String.prototype.split.call(a, "")${sc}} return Array.prototype.join.call(b, ""); } descramble_nsig(nsig)`;
// We really should throw an error here to avoid errors later, returning a pass-through function for backwards-compatibility
Log.warn(TAG, 'Failed to extract n-token decipher algorithm');
return 'function descramble_nsig(a) { return a; } descramble_nsig(nsig)';
return `function descramble_nsig(a) { let ${match[0]} descramble_nsig(nsig)`;
}
get url(): string {