fix: check if info exists within DANMU_MSG parser (#34)

Author: ddiu8081

mock/RECALL_DANMU_MSG/normal.json

@@ -0,0 +1,7 @@
+{
+  "cmd": "RECALL_DANMU_MSG",
+  "data": {
+    "recall_type": 2,
+    "target_id": 77777777771
+  }
+}

src/listener/index.ts

@@ -140,6 +140,9 @@ export const listenAll = (instance: KeepLiveTCP | KeepLiveWS | KeepLiveWSB, room
     instance.on(DANMU_MSG.eventName, (data) => {
       isHandleRaw && rawHandler[DANMU_MSG.eventName]?.(data.data)
       const parsedData = DANMU_MSG.parser(data.data, roomId)
+      if (!parsedData) {
+        return
+      }
       handler[DANMU_MSG.handlerName]?.(normalizeDanmu(DANMU_MSG.eventName, parsedData, data.data))
     })
   }

src/parser/DANMU_MSG.ts

@@ -32,8 +32,11 @@ export interface DanmuMsg {
   }>
 }
 
-const parser = (data: DataType, roomId: number): DanmuMsg => {
+const parser = (data: DataType, roomId: number): DanmuMsg | null => {
   const rawData = data.info
+  if (!rawData) {
+    return null
+  }
   const content = rawData[1]
   const shouldParseInMessageEmoticon = /\[.*?\]/.test(content)
   let inMessageEmoticon