Dependency upgrade + lib_um_crypto_rust (#78)

Co-authored-by: 鲁树人 <lu.shuren@um-react.app>
Co-committed-by: 鲁树人 <lu.shuren@um-react.app>

src/decrypt-worker/decipher/QQMusic.ts

@@ -0,0 +1,74 @@
+import { DecipherInstance, DecipherOK, DecipherResult, Status } from '~/decrypt-worker/Deciphers';
+import { decryptQMC1, QMC2, QMCFooter } from '@unlock-music/crypto';
+import { chunkBuffer } from '~/decrypt-worker/util/buffer.ts';
+import type { DecryptCommandOptions } from '~/decrypt-worker/types.ts';
+import { UnsupportedSourceFile } from '~/decrypt-worker/util/DecryptError.ts';
+import { isDataLooksLikeAudio } from '~/decrypt-worker/util/audioType.ts';
+
+export class QQMusicV1Decipher implements DecipherInstance {
+  cipherName = 'QQMusic/QMC1';
+
+  async decrypt(buffer: Uint8Array): Promise<DecipherResult | DecipherOK> {
+    const header = buffer.slice(0, 0x20);
+    decryptQMC1(header, 0);
+    if (!isDataLooksLikeAudio(header)) {
+      throw new UnsupportedSourceFile('does not look like QMC file');
+    }
+
+    const audioBuffer = new Uint8Array(buffer);
+    for (const [block, offset] of chunkBuffer(audioBuffer)) {
+      decryptQMC1(block, offset);
+    }
+    return {
+      status: Status.OK,
+      cipherName: this.cipherName,
+      data: audioBuffer,
+    };
+  }
+
+  public static create() {
+    return new QQMusicV1Decipher();
+  }
+}
+
+export class QQMusicV2Decipher implements DecipherInstance {
+  cipherName: string;
+
+  constructor(private readonly useUserKey: boolean) {
+    this.cipherName = `QQMusic/QMC2(user_key=${+useUserKey})`;
+  }
+
+  async decrypt(buffer: Uint8Array, options: DecryptCommandOptions): Promise<DecipherResult | DecipherOK> {
+    const footer = QMCFooter.parse(buffer.subarray(buffer.byteLength - 1024));
+    if (!footer) {
+      throw new UnsupportedSourceFile('Not QMC2 File');
+    }
+
+    const audioBuffer = buffer.slice(0, buffer.byteLength - footer.size);
+    const ekey = this.useUserKey ? options.qmc2Key : footer.ekey;
+    footer.free();
+    if (!ekey) {
+      throw new Error('EKey missing');
+    }
+
+    const qmc2 = new QMC2(ekey);
+    for (const [block, offset] of chunkBuffer(audioBuffer)) {
+      qmc2.decrypt(block, offset);
+    }
+    qmc2.free();
+
+    return {
+      status: Status.OK,
+      cipherName: this.cipherName,
+      data: audioBuffer,
+    };
+  }
+
+  public static createWithUserKey() {
+    return new QQMusicV2Decipher(true);
+  }
+
+  public static createWithEmbeddedEKey() {
+    return new QQMusicV2Decipher(false);
+  }
+}