applications/luci-minidlna: add status output

applications/luci-minidlna/luasrc/controller/minidlna.lua

@@ -24,4 +24,37 @@ function index()
 	page = entry({"admin", "services", "minidlna"}, cbi("minidlna"), _("miniDLNA"))
 	page.i18n = "minidlna"
 	page.dependent = true
+
+	entry({"admin", "services", "minidlna_status"}, call("minidlna_status"))
+end
+
+function minidlna_status()
+	local sys  = require "luci.sys"
+    local uci  = require "luci.model.uci".cursor()
+    local port = tonumber(uci:get_first("minidlna", "minidlna", "port"))
+
+    local status = {
+		running = (sys.call("pidof minidlna >/dev/null") == 0),
+        audio   = 0,
+        video   = 0,
+        image   = 0
+    }
+
+	if status.running then
+		local fd = sys.httpget("http://127.0.0.1:%d/" % (port or 8200), true)
+		if fd then
+			local ln
+			repeat
+				ln = fd:read("*l")
+				if ln and ln:match("files:") then
+					local ftype, fcount = ln:match("(.+) files: (%d+)")
+					status[ftype:lower()] = tonumber(fcount) or 0
+				end
+			until not ln
+			fd:close()
+		end
+	end
+
+	luci.http.prepare_content("application/json")
+	luci.http.write_json(status)
 end

applications/luci-minidlna/luasrc/view/admin_status/index/minidlna.htm

@@ -0,0 +1 @@
+<%+minidlna_status%>

applications/luci-minidlna/luasrc/view/minidlna_status.htm

@@ -0,0 +1,29 @@
+<script type="text/javascript">//<![CDATA[
+	XHR.poll(5, '<%=luci.dispatcher.build_url("admin/services/minidlna_status")%>', null,
+		function(x, st)
+		{
+			var tb = document.getElementById('minidlna_status');
+			if (st && tb)
+			{
+				if (st.running)
+				{
+					tb.innerHTML = String.format(
+						'<%:%The miniDLNA service is active, serving %d audio, %d video and %d image files.%>',
+							st.audio, st.video, st.image
+					);
+				}
+				else
+				{
+					tb.innerHTML = '<%:The miniDLNA service is not running.%>';
+				}
+			}
+		}
+	);
+//]]></script>
+
+<fieldset class="cbi-section">
+	<legend><%:miniDLNA Status%></legend>
+	<p id="minidlna_status">
+		<em><%:Collecting data...%></em>
+	</p>
+</fieldset>