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fix(kwm): allow new magic header

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This commit is contained in:
Yuki1536 2022-12-05 10:26:41 +09:00
parent 4d1295a0e6
commit a06f38a437
1 changed files with 8 additions and 4 deletions
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8
src/decrypt/kwm.ts
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@ -15,12 +15,16 @@ import { DecryptResult } from '@/decrypt/entity';
const MagicHeader = [ const MagicHeader = [
0x79, 0x65, 0x65, 0x6C, 0x69, 0x6F, 0x6E, 0x2D, 0x79, 0x65, 0x65, 0x6C, 0x69, 0x6F, 0x6E, 0x2D,
0x6B, 0x75, 0x77, 0x6F, 0x2D, 0x74, 0x6D, 0x65, 0x6B, 0x75, 0x77, 0x6F, 0x2D, 0x74, 0x6D, 0x65,
] ];
const MagicHeader2 = [
0x79, 0x65, 0x65, 0x6C, 0x69, 0x6F, 0x6E, 0x2D,
0x6B, 0x75, 0x77, 0x6F, 0x00, 0x00, 0x00, 0x00,
];
const PreDefinedKey = 'MoOtOiTvINGwd2E6n0E1i7L5t2IoOoNk'; const PreDefinedKey = 'MoOtOiTvINGwd2E6n0E1i7L5t2IoOoNk';
export async function Decrypt(file: File, raw_filename: string, _: string): Promise<DecryptResult> { export async function Decrypt(file: File, raw_filename: string, _: string): Promise<DecryptResult> {
const oriData = new Uint8Array(await GetArrayBuffer(file)); const oriData = new Uint8Array(await GetArrayBuffer(file));
if (!BytesHasPrefix(oriData, MagicHeader)) { if (!BytesHasPrefix(oriData, MagicHeader) && !BytesHasPrefix(oriData, MagicHeader2)) {
if (SniffAudioExt(oriData) === 'aac') { if (SniffAudioExt(oriData) === 'aac') {
return await RawDecrypt(file, raw_filename, 'aac', false); return await RawDecrypt(file, raw_filename, 'aac', false);
} }