luci-app-mosdns: API: Add flush cache function

luci-app-mosdns/luasrc/controller/mosdns.lua

@@ -20,6 +20,7 @@ function index()
     entry({"admin", "services", "mosdns", "get_log"}, call("get_log")).leaf = true
     entry({"admin", "services", "mosdns", "clear_log"}, call("clear_log")).leaf = true
     entry({"admin", "services", "mosdns", "geo_update"}, call("geo_update")).leaf = true
+    entry({"admin", "services", "mosdns", "flush_cache"}, call("flush_cache")).leaf = true
 end
 
 function act_status()
@@ -43,3 +44,10 @@ function geo_update()
     http.prepare_content("application/json")
     http.write_json(e)
 end
+
+function flush_cache()
+    local e = {}
+    e.flushing = sys.call("/usr/share/mosdns/mosdns.sh flush >/dev/null") == 0
+    http.prepare_content("application/json")
+    http.write_json(e)
+end

luci-app-mosdns/luasrc/model/cbi/mosdns/basic.lua

@@ -170,7 +170,7 @@ o:value("https://raw.githubusercontent.com/QiuSimons/openwrt-mos/master/dat/serv
 
 o = s:taboption("basic",  Button, "_reload", translate("Reload Service"), translate("Reload service to take effect of new configuration"))
 o.write = function()
-  sys.exec("/etc/init.d/mosdns reload")
+    sys.exec("/etc/init.d/mosdns reload")
 end
 o:depends("configfile", "/etc/mosdns/config_custom.yaml")
 
@@ -200,4 +200,9 @@ o.datatype = "and(port,min(1))"
 o.default = 9091
 o:depends("configfile", "/etc/mosdns/config.yaml")
 
+o = s:taboption("api", Button, "flush_cache", translate("Flush Cache"), translate("Flushing Cache will clear any IP addresses or DNS records from MosDNS cache"))
+o.rawhtml = true
+o.template = "mosdns/mosdns_flush_cache"
+o:depends("enabled_api", "1")
+
 return m

luci-app-mosdns/luasrc/view/mosdns/mosdns_flush_cache.htm

@@ -0,0 +1,34 @@
+<%+cbi/valueheader%>
+<script type="text/javascript">//<![CDATA[
+    function flush_cache(btn, dataname)
+    {
+        btn.disabled = true;
+        btn.value = '<%:Flushing...%> ';
+        st=dataname;
+        XHR.get('<%=luci.dispatcher.build_url("admin", "services", "mosdns", "flush_cache")%>',
+            { set:st },
+            function(x,data)
+            {
+            var tb = document.getElementById(dataname+'-status');
+            if (tb)
+            {
+                switch (data.flushing)
+                {
+                    case true:
+                        tb.innerHTML = "<font color='green'>" + "<%:Flushing Success%>" + "</font>";
+                        break;
+                    case false:
+                        tb.innerHTML = "<font color='red'>" + "<%:Flushing Failed, Please check if the API is enabled%>" + "</font>";
+                        break;
+                }
+            }
+                btn.disabled = false;
+                btn.value    = '<%:Flush Cache%>';
+            }
+        );
+        return false;
+    }
+//]]></script>
+<input type="button" class="btn cbi-button cbi-button-reload" value="<%:Flush Cache%>" onclick="return flush_cache(this,'<%=self.option%>')" />
+<span id="<%=self.option%>-status"><em><%=self.value%></em></span>
+<%+cbi/valuefooter%>

luci-app-mosdns/po/zh-cn/mosdns.po

@@ -34,6 +34,21 @@ msgstr "启用 API"
 msgid "API Listen port"
 msgstr "API 监听端口"
 
+msgid "Flush Cache"
+msgstr "刷新缓存"
+
+msgid "Flushing Cache will clear any IP addresses or DNS records from MosDNS cache"
+msgstr "刷新缓存会清空 MosDNS 所有 IP 地址和 DNS 解析缓存"
+
+msgid "Flushing..."
+msgstr "正在刷新..."
+
+msgid "Flushing Success"
+msgstr "刷新成功"
+
+msgid "Flushing Failed, Please check if the API is enabled"
+msgstr "刷新失败，请检查 API 是否已启用"
+
 msgid "Log Level"
 msgstr "日志等级"
 

luci-app-mosdns/root/usr/share/mosdns/mosdns.sh

@@ -94,6 +94,10 @@ ecs_remote() {
     echo "ecs ${ipaddr%.*}.0/24"
 }
 
+flush_cache() {
+    curl -s 127.0.0.1:$(uci -q get mosdns.config.listen_port_api)/plugins/cache/flush || exit 1
+}
+
 case $script_action in
     "dns")
         interface_dns
@@ -116,6 +120,9 @@ case $script_action in
     "ecs_remote")
         ecs_remote
     ;;
+    "flush")
+        flush_cache
+    ;;
     "version")
         mosdns version
     ;;