Merge remote-tracking branch 'gitea/feature-im' into feature-im-gitea

handler/im.go

@@ -277,6 +277,7 @@ func SRMessage(c *gin.Context) {
 		}
 	}(ws, res, to_user_id)
 
+	var status_cnt int
 	// 从Redis中读取消息并发送到客户端
 	for {
 		if v := clients[ws]; v == true {
@@ -307,6 +308,18 @@ func SRMessage(c *gin.Context) {
 					msg.Session = res
 					res3, _ = json.Marshal(msg)
 				}
+			} else {
+				if status_cnt > 5 {
+					//对方不在线
+					msg.Type = "offline"
+					msg.Msg = "offline"
+					msg.From_user_id = -1
+					msg.Session = res
+					res3, _ = json.Marshal(msg)
+				} else {
+					status_cnt++
+				}
+
 			}
 			err2 := ws.WriteMessage(websocket.TextMessage, res3)
 			if err2 != nil {