From b22f022f2c3652a5af3c1ef843a9b06eba851404 Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Sun, 4 Mar 2012 18:36:05 +0000
Subject: [PATCH] modules/admin-full: add DNS resolution to connections status
 page, order connections descending by traffic

---
 .../luasrc/controller/admin/status.lua        | 15 ++++++++
 .../luasrc/view/admin_status/connections.htm  | 38 +++++++++++++++++--
 2 files changed, 49 insertions(+), 4 deletions(-)

diff --git a/modules/admin-full/luasrc/controller/admin/status.lua b/modules/admin-full/luasrc/controller/admin/status.lua
index f77d91b34..d7d301c54 100644
--- a/modules/admin-full/luasrc/controller/admin/status.lua
+++ b/modules/admin-full/luasrc/controller/admin/status.lua
@@ -37,6 +37,8 @@ function index()
 
 	entry({"admin", "status", "realtime", "connections"}, template("admin_status/connections"), _("Connections"), 4).leaf = true
 	entry({"admin", "status", "realtime", "connections_status"}, call("action_connections")).leaf = true
+
+	entry({"admin", "status", "nameinfo"}, call("action_nameinfo")).leaf = true
 end
 
 function action_syslog()
@@ -153,3 +155,16 @@ function action_connections()
 
 	luci.http.write(" }")
 end
+
+function action_nameinfo(...)
+	local i
+	local rv = { }
+	for i = 1, select('#', ...) do
+		local addr = select(i, ...)
+		local fqdn = nixio.getnameinfo(addr)
+		rv[addr] = fqdn or (addr:match(":") and "[%s]" % addr or addr)
+	end
+
+	luci.http.prepare_content("application/json")
+	luci.http.write_json(rv)
+end
diff --git a/modules/admin-full/luasrc/view/admin_status/connections.htm b/modules/admin-full/luasrc/view/admin_status/connections.htm
index bfa2a33a4..9c9eb01c9 100644
--- a/modules/admin-full/luasrc/view/admin_status/connections.htm
+++ b/modules/admin-full/luasrc/view/admin_status/connections.htm
@@ -59,6 +59,8 @@ $Id$
 
 	var conn_table;
 
+	var dns_cache = { };
+
 
 	/* wait for SVG */
 	window.setTimeout(
@@ -149,19 +151,47 @@ $Id$
 						while (conn_table.rows.length > 1)
 							conn_table.rows[0].parentNode.deleteRow(-1);
 
+
+						var lookup_queue = [ ];
+
+						conn.sort(function(a, b) {
+							return b.bytes - a.bytes;
+						});
+
 						for (var i = 0; i < conn.length; i++)
 						{
 							var c  = conn[i];
 							var tr = conn_table.rows[0].parentNode.insertRow(-1);
-								tr.className = 'cbi-section-table-row cbi-rowstyle-' + (1 + (i % 2));
+							    tr.className = 'cbi-section-table-row cbi-rowstyle-' + (1 + (i % 2));
+
+							if (!dns_cache[c.src])
+								lookup_queue.push(c.src);
+
+							if (!dns_cache[c.dst])
+								lookup_queue.push(c.dst);
+
+							var src = dns_cache[c.src] || (c.layer3 == 'ipv6' ? '[' + c.src + ']' : c.src);
+							var dst = dns_cache[c.dst] || (c.layer3 == 'ipv6' ? '[' + c.dst + ']' : c.dst);
 
 							tr.insertCell(-1).innerHTML = c.layer3.toUpperCase();
 							tr.insertCell(-1).innerHTML = c.layer4.toUpperCase();
-							tr.insertCell(-1).innerHTML = String.format(c.layer3 == 'ipv6' ? '[%s]:%d' : '%s:%d', c.src, c.sport);
-							tr.insertCell(-1).innerHTML = String.format(c.layer3 == 'ipv6' ? '[%s]:%d' : '%s:%d', c.dst, c.dport);
-							tr.insertCell(-1).innerHTML = String.format('%1024.2mB (%d <%:Pkts.%>)', c.bytes, c.packets);
+							tr.insertCell(-1).innerHTML = String.format('%s:%d', src, c.sport);
+							tr.insertCell(-1).innerHTML = String.format('%s:%d', dst, c.dport);
+
+							var traf = tr.insertCell(-1);
+							    traf.style.whiteSpace = 'nowrap';
+							    traf.innerHTML = String.format('%1024.2mB (%d <%:Pkts.%>)', c.bytes, c.packets);
 						}
 
+						if (lookup_queue.length > 0)
+							XHR.get('<%=build_url("admin/status/nameinfo")%>/' + lookup_queue.slice(0, 100).join('/'), null,
+								function(x, json)
+								{
+									for (var addr in json)
+										dns_cache[addr] = json[addr];
+								}
+							);
+
 
 						var data = json.statistics;
 
-- 
2.25.1