From cc2654c371b3d13476ae8db0aa21f6379870da95 Mon Sep 17 00:00:00 2001
From: Simon Zolin <s.zolin@adguard.com>
Date: Thu, 8 Aug 2019 12:40:41 +0300
Subject: [PATCH] + /control/stats_config, /control/stats_info

---
 home/control_stats.go | 54 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 home/control_stats.go

diff --git a/home/control_stats.go b/home/control_stats.go
new file mode 100644
index 00000000..0dce5510
--- /dev/null
+++ b/home/control_stats.go
@@ -0,0 +1,54 @@
+package home
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/AdguardTeam/golibs/log"
+)
+
+type statsConfig struct {
+	Interval uint `json:"interval"`
+}
+
+func handleStatsInfo(w http.ResponseWriter, r *http.Request) {
+	log.Tracef("%s %v", r.Method, r.URL)
+
+	resp := statsConfig{}
+	resp.Interval = config.DNS.StatsInterval
+
+	jsonVal, err := json.Marshal(resp)
+	if err != nil {
+		httpError(w, http.StatusInternalServerError, "json encode: %s", err)
+		return
+	}
+	w.Header().Set("Content-Type", "application/json")
+	_, err = w.Write(jsonVal)
+	if err != nil {
+		httpError(w, http.StatusInternalServerError, "http write: %s", err)
+	}
+}
+
+func handleStatsConfig(w http.ResponseWriter, r *http.Request) {
+	log.Tracef("%s %v", r.Method, r.URL)
+
+	reqData := statsConfig{}
+	err := json.NewDecoder(r.Body).Decode(&reqData)
+	if err != nil {
+		httpError(w, http.StatusBadRequest, "json decode: %s", err)
+		return
+	}
+
+	if !checkStatsInterval(reqData.Interval) {
+		httpError(w, http.StatusBadRequest, "Unsupported interval")
+		return
+	}
+
+	config.DNS.StatsInterval = reqData.Interval
+
+	httpUpdateConfigReloadDNSReturnOK(w, r)
+}
+
+func checkStatsInterval(i uint) bool {
+	return i == 1 || i == 7 || i == 30 || i == 90
+}