feat: added support for QMCv2 (#11)
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@ -14,7 +14,7 @@
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"@chakra-ui/react": "^2.6.1",
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"@emotion/react": "^11.11.0",
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"@emotion/styled": "^11.11.0",
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"@jixun/libparakeet": "0.0.0-exp.15",
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"@jixun/libparakeet": "0.0.0-exp.16",
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"@reduxjs/toolkit": "^1.9.5",
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"framer-motion": "^10.12.8",
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"nanoid": "^4.0.2",
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@ -14,8 +14,8 @@ dependencies:
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specifier: ^11.11.0
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version: 11.11.0(@emotion/react@11.11.0)(@types/react@18.0.28)(react@18.2.0)
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'@jixun/libparakeet':
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specifier: 0.0.0-exp.15
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version: 0.0.0-exp.15
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specifier: 0.0.0-exp.16
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version: 0.0.0-exp.16
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'@reduxjs/toolkit':
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specifier: ^1.9.5
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version: 1.9.5(react-redux@8.0.5)(react@18.2.0)
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@ -1780,8 +1780,8 @@ packages:
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resolution: {integrity: sha512-ZnQMnLV4e7hDlUvw8H+U8ASL02SS2Gn6+9Ac3wGGLIe7+je2AeAOxPY+izIPJDfFDb7eDjev0Us8MO1iFRN8hA==}
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dev: true
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/@jixun/libparakeet@0.0.0-exp.15:
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resolution: {integrity: sha512-Le2Gl/2V6BsrK8NcFTtaelUkjqewCmDT3xZgUxOKjOo2lK1qvj1AtxarhfDtsOQVjvItiibuRPaRFPpLmWJe9g==}
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/@jixun/libparakeet@0.0.0-exp.16:
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resolution: {integrity: sha512-jDj9kju0tCJyesV+yi4xcOGClrFgdarkcG/aGP3tRfonf1l8y11A8lVwbp3cWXJcrgHAn7683rTEUYitg9TfpA==}
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dev: false
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/@jridgewell/gen-mapping@0.3.3:
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3
src/decrypt-worker/crypto/qmc/qmc_v2.key.ts
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3
src/decrypt-worker/crypto/qmc/qmc_v2.key.ts
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@ -0,0 +1,3 @@
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export const SEED = 106;
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export const ENC_V2_KEY_1 = '386ZJY!@#*$%^&)(';
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export const ENC_V2_KEY_2 = '**#!(#$%&^a1cZ,T';
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17
src/decrypt-worker/crypto/qmc/qmc_v2.ts
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17
src/decrypt-worker/crypto/qmc/qmc_v2.ts
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@ -0,0 +1,17 @@
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import { transformBlob } from '~/decrypt-worker/util/transformBlob';
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import type { CryptoBase } from '../CryptoBase';
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import { SEED, ENC_V2_KEY_1, ENC_V2_KEY_2 } from './qmc_v2.key.ts';
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export class QMC2Crypto implements CryptoBase {
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hasSignature(): boolean {
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return false;
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}
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async isSupported(): Promise<boolean> {
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return true;
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}
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async decrypt(blob: Blob): Promise<Blob> {
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return transformBlob(blob, (p) => p.make.QMCv2(p.make.QMCv2FooterParser(SEED, ENC_V2_KEY_1, ENC_V2_KEY_2)));
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}
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}
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@ -2,9 +2,11 @@ import { WorkerServerBus } from '~/util/WorkerEventBus';
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import { DECRYPTION_WORKER_ACTION_NAME } from './constants';
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import type { CryptoFactory } from './crypto/CryptoBase';
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import { fetchParakeet } from '@jixun/libparakeet';
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import { XiamiCrypto } from './crypto/xiami/xiami';
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import { QMC1Crypto } from './crypto/qmc/qmc_v1';
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import { fetchParakeet } from '@jixun/libparakeet';
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import { QMC2Crypto } from './crypto/qmc/qmc_v2';
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const bus = new WorkerServerBus();
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onmessage = bus.onmessage;
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@ -15,6 +17,9 @@ const decryptorFactories: CryptoFactory[] = [
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// QMCv1 (*.qmcflac)
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() => new QMC1Crypto(),
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// QMCv2 (*.mflac)
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() => new QMC2Crypto(),
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];
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// Use first 4MiB of the file to perform check.
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@ -27,17 +32,22 @@ bus.addEventHandler(DECRYPTION_WORKER_ACTION_NAME.DECRYPT, async (blobURI) => {
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for (const factory of decryptorFactories) {
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const decryptor = factory();
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if (await decryptor.isSupported(blob)) {
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const decryptedBlob = await decryptor.decrypt(blob);
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try {
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const decryptedBlob = await decryptor.decrypt(blob);
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// Check if we had a successful decryption
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const header = await decryptedBlob.slice(0, TEST_FILE_HEADER_LEN).arrayBuffer();
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const audioExt = parakeet.detectAudioExtension(header);
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if (!decryptor.hasSignature() && audioExt === 'bin') {
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// skip this decryptor result
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// Check if we had a successful decryption
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const header = await decryptedBlob.slice(0, TEST_FILE_HEADER_LEN).arrayBuffer();
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const audioExt = parakeet.detectAudioExtension(header);
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if (!decryptor.hasSignature() && audioExt === 'bin') {
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// skip this decryptor result
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continue;
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}
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return { decrypted: URL.createObjectURL(decryptedBlob), ext: audioExt };
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} catch (error) {
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console.error('decrypt failed: ', error);
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continue;
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}
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return { decrypted: URL.createObjectURL(decryptedBlob), ext: audioExt };
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}
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}
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