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refactor: slice NCM parsing

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This commit is contained in:
鲁树人 2024-09-14 20:54:10 +01:00
parent bb9529b877
commit 8b628fd6ce
1 changed files with 6 additions and 1 deletions
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7
src/decrypt-worker/crypto/ncm/ncm_pc.ts
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@ -8,8 +8,13 @@ export class NCMCrypto implements CryptoBase {
ncm = new NCMFile(); ncm = new NCMFile();
async checkBySignature(buffer: ArrayBuffer) { async checkBySignature(buffer: ArrayBuffer) {
const data = new Uint8Array(buffer);
let len = 1024;
try { try {
this.ncm.open(new Uint8Array(buffer)); while (len !== 0) {
console.debug('NCM/open: read %d bytes', len);
len = this.ncm.open(data.subarray(0, len));
}
} catch (error) { } catch (error) {
return false; return false;
} }