callback fix

pkg/common/callback/callback.go

@@ -0,0 +1,24 @@
+package callback
+
+import (
+	"Open_IM/pkg/common/constant"
+	server_api_params "Open_IM/pkg/proto/sdk_ws"
+	"github.com/golang/protobuf/jsonpb"
+	"github.com/golang/protobuf/proto"
+)
+
+func GetContent(msg *server_api_params.MsgData) string {
+	if msg.ContentType >= constant.NotificationBegin && msg.ContentType <= constant.NotificationEnd {
+		var tips server_api_params.TipsComm
+		_ = proto.Unmarshal(msg.Content, &tips)
+		marshaler := jsonpb.Marshaler{
+			OrigName:     true,
+			EnumsAsInts:  false,
+			EmitDefaults: false,
+		}
+		content, _ := marshaler.MarshalToString(&tips)
+		return content
+	} else {
+		return string(msg.Content)
+	}
+}