45 lines
1.3 KiB
TypeScript
45 lines
1.3 KiB
TypeScript
import jooxFactory from '@unlock-music/joox-crypto';
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import { DecryptResult } from './entity';
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import { AudioMimeType, GetArrayBuffer, SniffAudioExt } from './utils';
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import { MergeUint8Array } from '@/utils/MergeUint8Array';
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import { storage } from '@/utils/storage';
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import { extractQQMusicMeta } from '@/utils/qm_meta';
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export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string): Promise<DecryptResult> {
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const uuid = await storage.loadJooxUUID('');
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if (!uuid || uuid.length !== 32) {
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throw new Error('请在“解密设定”填写应用 Joox 应用的 UUID。');
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}
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const fileBuffer = new Uint8Array(await GetArrayBuffer(file));
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const decryptor = jooxFactory(fileBuffer, uuid);
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if (!decryptor) {
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throw new Error('不支持的 joox 加密格式');
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}
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const musicDecoded = MergeUint8Array(decryptor.decryptFile(fileBuffer));
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const ext = SniffAudioExt(musicDecoded);
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const mime = AudioMimeType[ext];
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const songId = raw_filename.match(/^(\d+)\s\[mqms\d*]$/i)?.[1];
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const { album, artist, imgUrl, blob, title } = await extractQQMusicMeta(
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new Blob([musicDecoded], { type: mime }),
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raw_filename,
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ext,
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songId,
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);
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return {
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title: title,
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artist: artist,
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ext: ext,
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album: album,
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picture: imgUrl,
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file: URL.createObjectURL(blob),
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blob: blob,
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mime: mime,
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};
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}
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