feat: added support for ncm (#15)
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@ -20,7 +20,7 @@
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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.18",
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"@jixun/libparakeet": "0.0.0-exp.19",
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"@reduxjs/toolkit": "^1.9.5",
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"framer-motion": "^10.12.12",
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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@18.2.6)(react@18.2.0)
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'@jixun/libparakeet':
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specifier: 0.0.0-exp.18
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version: 0.0.0-exp.18
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specifier: 0.0.0-exp.19
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version: 0.0.0-exp.19
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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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@ -3060,9 +3060,9 @@ packages:
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chalk: 4.1.2
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dev: true
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/@jixun/libparakeet@0.0.0-exp.18:
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/@jixun/libparakeet@0.0.0-exp.19:
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resolution:
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{ integrity: sha512-KLUCxr6x47hDs1tszY8uyR8fgiB+b2UIFSgCg9GEs+AiB+oFTyQlhZXbKmyfDOuWSDiBcdKJvmXq29x3zPDNEQ== }
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{ integrity: sha512-FePuE49fCIRppzTJzaeISJhtvf1mFyU4MpVlQigmlR2CLAXtEkJz0HhsoumJwzcWv6UQJMUSagtXoTa8pxZ4ww== }
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dev: false
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/@jridgewell/gen-mapping@0.3.3:
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@ -1,4 +1,5 @@
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import { CryptoFactory } from './CryptoBase';
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import { NCMCrypto } from './ncm/ncm_pc';
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import { QMC1Crypto } from './qmc/qmc_v1';
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import { QMC2Crypto } from './qmc/qmc_v2';
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@ -12,6 +13,9 @@ export const allCryptoFactories: CryptoFactory[] = [
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// QMCv2 (*.mflac)
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QMC2Crypto.make,
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// NCM (*.ncm)
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NCMCrypto.make,
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// Crypto that does not implement "checkBySignature" or need to decrypt the entire file and then check audio type,
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// should be moved to the bottom of the list for performance reasons.
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2
src/decrypt-worker/crypto/ncm/ncm_pc.key.ts
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src/decrypt-worker/crypto/ncm/ncm_pc.key.ts
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@ -0,0 +1,2 @@
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export const NCM_KEY = 'hzHRAmso5kInbaxW';
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export const NCM_MAGIC_HEADER = new Uint8Array([0x43, 0x54, 0x45, 0x4e, 0x46, 0x44, 0x41, 0x4d]);
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src/decrypt-worker/crypto/ncm/ncm_pc.ts
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src/decrypt-worker/crypto/ncm/ncm_pc.ts
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@ -0,0 +1,21 @@
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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 { NCM_KEY, NCM_MAGIC_HEADER } from './ncm_pc.key';
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export class NCMCrypto implements CryptoBase {
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cryptoName = 'NCM/PC';
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checkByDecryptHeader = false;
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async checkBySignature(buffer: ArrayBuffer) {
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const view = new DataView(buffer, 0, NCM_MAGIC_HEADER.byteLength);
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return NCM_MAGIC_HEADER.every((value, i) => value === view.getUint8(i));
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}
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async decrypt(buffer: ArrayBuffer): Promise<Blob> {
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return transformBlob(buffer, (p) => p.make.NeteaseNCM(NCM_KEY));
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}
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public static make() {
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return new NCMCrypto();
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}
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}
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