修复lrcx下载和解析问题

src/lyric/lrcx.ts

@@ -2,6 +2,7 @@ import zlib from 'zlib'
 import iconv from 'iconv-lite'
 import { IKaraokeWord, ILyric, ILyricLine, LyricType } from './declare'
 import { genLyricTag, parseLyricTag } from './common'
+import { parse as parseLrc } from './lrc'
 
 
 const KUWO_LYRIC_KEY = Buffer.from('yeelion')
@@ -22,13 +23,20 @@ function cryptLRCX(buffer: Buffer) {
 export function decrypt(buffer: Buffer) {
 	try {
 		//解压
-		const b64Str = zlib.inflateSync(buffer).toString()
-		//取得内容
-		const content = Buffer.from(b64Str, 'base64')
-		//解密
-		cryptLRCX(content)
+		const b64Buffer = zlib.inflateSync(buffer)
+		const b64Str = b64Buffer.toString()
+		//不需要解码
+		if (/\s*\[[a-z0-9A-z]+:/.test(b64Str)) return iconv.decode(b64Buffer, 'gb18030')
+		//进行解码
+		else {
+			//取得内容
+			const content = Buffer.from(b64Str, 'base64')
+			//解密
+			cryptLRCX(content)
+			//return
+			return iconv.decode(content, 'gb18030')
+		}
 		//完成
-		return iconv.decode(content, 'gb18030')
 	} catch (err) {
 		return null
 	}
@@ -54,6 +62,9 @@ export function encrypt(content: string | Buffer) {
  * @param lrcxText LRCX歌词文本内容
  */
 export function parse(lrcxText: string) {
+	//如果不是lrcx则按照lrc解析
+	if (!/^\[kuwo:\d+\]$/im.test(lrcxText)) return parseLrc(lrcxText)
+
 	//结果
 	const result: ILyric = { type: LyricType.KARA, content: [] }