Next front page improvement

- load all files in include directory
- half-baked attempt to make HTML output more readable
- add top hosts by total bits box
- horrible hack to generate_device_link() to make it possible to insert the device_bits graph

html/includes/front/top_device_bits.inc.php

@@ -0,0 +1,42 @@
+<?php
+/*
+ * LibreNMS front page top devices graph
+ * - Find most utilised devices that have been polled in the last N minutes
+ *
+ * Copyright (c) 2013 Gear Consulting Pty Ltd <http://libertysys.com.au/>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.  Please see LICENSE.txt at the top level of
+ * the source code distribution for details.
+ */
+
+$minutes = 15;
+$seconds = $minutes * 60;
+$top = $config['front_page_settings']['top']['devices'];
+$query = "
+  SELECT *, sum(p.ifInOctets_rate + p.ifOutOctets_rate) as total
+  FROM ports as p, devices as d
+  WHERE d.device_id = p.device_id
+    AND unix_timestamp() - p.poll_time < $seconds
+    AND ( p.ifInOctets_rate > 0
+    OR p.ifOutOctets_rate > 0 )
+  GROUP BY d.device_id
+  ORDER BY total desc
+  LIMIT $top
+";
+
+
+echo("<strong>Top $top devices (last $minutes minutes)</strong>\n");
+echo("<table class='simple'>\n");
+foreach (dbFetchRows($query) as $result) {
+  echo("<tr>".
+    "<td>".generate_device_link($result, shorthost($result['hostname']))."</td>".
+    "<td>".generate_device_link($result,
+      generate_minigraph_image($result, $config['time']['day'], $config['time']['now'], "device_bits", "no", 150, 21, '&'), array(), 0, 0, 0)."</td>".
+    "</tr>\n");
+}
+echo("</table>\n");
+
+?>