@@ -35,6 +35,9 @@ type APP struct {
 userMap map[string]time.Time
 recordMap map[string]time.Time
 
+userInfoMu sync.Mutex
+userInfo map[string]time.Time
+
 wg tools.WaitGroupWrapper
 shutdown chan struct{}
 shutdownComplete chan struct{}
@@ -49,6 +52,7 @@ func New(cfg Config) *APP {
 group: new(singleflight.Group),
 userMap: make(map[string]time.Time),
 recordMap: make(map[string]time.Time),
+userInfo: make(map[string]time.Time),
 shutdown: make(chan struct{}),
 shutdownComplete: make(chan struct{}),
 }
@@ -89,6 +93,9 @@ func (a *APP) Run() error {
 a.wg.Wrap(func() {
 exitFunc(a.runHTTP())
 })
+a.wg.Wrap(func() {
+exitFunc(a.runInterHTTP())
+})
 
 if enable {
 a.Cron(CronSpec)
@@ -111,12 +118,17 @@ func (a *APP) runHTTP() error {
 
 r := mux.NewRouter()
 Router(r, a, ioutil.Discard)
+handle := handlers.RecoveryHandler()(handlers.CompressHandler(r))
+return a.runhttp(address, handle)
+}
+
+func (a *APP) runhttp(address string, handle http.Handler) error {
 
 srv := &http.Server{
 Addr: address,
 WriteTimeout: 120 * time.Second,
 ReadTimeout: 120 * time.Second,
-Handler: handlers.RecoveryHandler()(handlers.CompressHandler(r)),
+Handler: handle,
 }
 
 go func() {

@@ -1,9 +1,10 @@
 package app
 
 type Config struct {
-Address string
-SqlitePath string
-EnableCron bool
+Address string
+DebugAddress int
+SqlitePath string
+EnableCron bool
 }
 
 type RedisConfig struct {

@@ -0,0 +1,58 @@
+package app
+
+import (
+"encoding/json"
+"fmt"
+"net/http"
+"sort"
+"time"
+
+".com/gorilla/mux"
+)
+
+func (a *APP) addUser(name string, isCN bool) {
+t := time.Now()
+
+key := name + "_" + fmt.Sprintf("%v", isCN)
+
+a.userInfoMu.Lock()
+a.userInfo[key] = t
+a.userInfoMu.Unlock()
+}
+
+func (a *APP) runInterHTTP() error {
+var (
+port = a.config.DebugAddress
+)
+
+r := mux.NewRouter()
+r.HandleFunc("/user_info", a.ShowUserInfo)
+
+return a.runhttp(fmt.Sprintf("127.0.0.1:%d", port), r)
+}
+
+type MetricUserInfo struct {
+Name string `json:"name"`
+// IsCN string `json:"is_cn"`
+Time string `json:"last_time"`
+}
+
+func (a *APP) ShowUserInfo(w http.ResponseWriter, r *http.Request) {
+
+a.userInfoMu.Lock()
+list := make([]MetricUserInfo, 0, len(a.userInfo))
+for k, v := range a.userInfo {
+list = append(list, MetricUserInfo{
+Name: k,
+Time: v.Format("2006-01-02 15:04:05"),
+})
+}
+a.userInfoMu.Unlock()
+
+sort.Slice(list, func(i, j int) bool {
+return list[i].Name < list[j].Name
+})
+
+body, _ := json.Marshal(list)
+w.Write(body)
+}

@@ -119,6 +119,7 @@ func (a *APP) HandlerFunc(badgeType BadgeType, isCN bool) http.Handler {
 w.WriteHeader(http.StatusNotFound)
 return
 }
+a.addUser(name, isCN)
 f(badgeType, name, isCN, w, r)
 })
 }

@@ -32,6 +32,7 @@ func NewRunCommand() *cobra.Command {
 flag := cmd.Flags()
 
 flag.StringVarP(&opt.Address, "address", "", ":8080", "http listen address")
+flag.IntVarP(&opt.DebugAddress, "debug-address", "", 18080, "http debug address, only localhost")
 flag.StringVarP(&opt.SqlitePath, "sqlite-path", "", "./lc.db", "sqlite3 file path")
 flag.BoolVarP(&opt.EnableCron, "enable-cron", "", false, "if enable cron")