fix: typo

src/crypto/parseKuwo.ts

@@ -0,0 +1,25 @@
+import { bytesToUTF8String } from '~/decrypt-worker/util/utf8Encoder';
+import { strlen } from './strlen';
+
+export interface KuwoHeader {
+  rid: string; // uint64
+  encVersion: 1 | 2; // uint32
+  quality: string;
+}
+
+export function parseKuwoHeader(view: DataView): KuwoHeader | null {
+  const magic = view.buffer.slice(view.byteOffset, view.byteOffset + 0x10);
+  if (bytesToUTF8String(magic) !== 'yeelion-kuwo-tme') {
+    return null; // not kuwo-encrypted file
+  }
+
+  const qualityBytes = new Uint8Array(view.buffer.slice(view.byteOffset + 0x30, view.byteOffset + 0x40));
+  const qualityLen = strlen(qualityBytes);
+  const quality = bytesToUTF8String(qualityBytes.slice(0, qualityLen));
+
+  return {
+    encVersion: view.getUint32(0x10, true) as 1 | 2,
+    rid: view.getUint32(0x18, true).toString(),
+    quality,
+  };
+}