Feature: Added alerts output to capture system (#4574)

* Feature: Added alerts output to capture system

* Renamed $output to $content

* removed duplicate functions

html/ajax_output.php

@@ -18,6 +18,7 @@ require_once '../includes/definitions.inc.php';
 require_once 'includes/functions.inc.php';
 require_once '../includes/functions.php';
 require_once 'includes/authenticate.inc.php';
+require_once '../includes/alerts.inc.php';
 
 set_debug($_REQUEST['debug']);
 $id = mres($_REQUEST['id']);

html/includes/functions.inc.php

@@ -1343,3 +1343,21 @@ function ipmiSensorName($hardwareId, $sensorIpmi, $rewriteArray)
         return $sensorIpmi;
     }
 }
+
+/**
+ * @param $filename
+ * @param $content
+ */
+function file_download($filename, $content)
+{
+    $length = strlen($content);
+    header('Content-Description: File Transfer');
+    header('Content-Type: text/plain');
+    header("Content-Disposition: attachment; filename=$filename");
+    header('Content-Transfer-Encoding: binary');
+    header('Content-Length: ' . $length);
+    header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
+    header('Expires: 0');
+    header('Pragma: public');
+    echo $content;
+}

html/includes/output/capture.inc.php

@@ -78,16 +78,5 @@ if ($_GET['format'] == 'text') {
 
     $output = preg_replace('/\033\[[\d;]+m/', '', $output);
 
-    $length = strlen($output);
-
-    header('Content-Description: File Transfer');
-    header('Content-Type: text/plain');
-    header("Content-Disposition: attachment; filename=$filename");
-    header('Content-Transfer-Encoding: binary');
-    header('Content-Length: ' . $length);
-    header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
-    header('Expires: 0');
-    header('Pragma: public');
-
-    echo $output;
+    file_download($filename, $output);
 }

html/includes/output/query.inc.php

@@ -0,0 +1,68 @@
+<?php
+/**
+ * output.php
+ *
+ * runs the requested query and outputs as a file or text
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @package    LibreNMS
+ * @link       http://librenms.org
+ * @copyright  2016 Neil Lathwood
+ * @author     Neil Lathwood <neil@lathwood.co.uk>
+ */
+
+if (!is_admin()) {
+    echo("Insufficient Privileges");
+    exit();
+}
+
+$hostname = escapeshellcmd($_REQUEST['hostname']);
+$type = $_REQUEST['type'];
+
+switch ($type) {
+    case 'alerts':
+        $filename = "alerts-$hostname.txt";
+        $device_id = getidbyname($hostname);
+        $device = device_by_id_cache($device_id);
+        $rules = GetRules($device_id);
+        $output = '';
+        foreach ($rules as $rule) {
+            $sql = GenSQL($rule['rule']);
+            $qry = dbFetchRow($sql, array($device_id));
+            if (is_array($qry)) {
+                $response = 'matches';
+            } else {
+                $response = 'no match';
+            }
+            $output .= 'Rule name: ' . $rule['name'] . PHP_EOL;
+            $output .= 'Alert rule: ' . $rule['rule'] . PHP_EOL;
+            $output .= 'Rule match: ' . $response . PHP_EOL . PHP_EOL;
+        }
+        break;
+    default:
+        echo 'You must specify a valid type';
+        exit();
+}
+
+// ---- Output ----
+
+if ($_GET['format'] == 'text') {
+    header("Content-type: text/plain");
+    header('X-Accel-Buffering: no');
+
+    echo $output;
+} elseif ($_GET['format'] == 'download') {
+    file_download($filename, $output);
+}

html/pages/device/capture.inc.php

@@ -36,6 +36,7 @@ if (!is_admin()) {
         <li role="presentation" class="active"><a data-toggle="tab" href="#discovery">Discovery</a></li>
         <li role="presentation"><a data-toggle="tab" href="#poller">Poller</a></li>
         <li role="presentation"><a data-toggle="tab" href="#snmp">SNMP</a></li>
+        <li role="presentation"><a data-toggle="tab" href="#alerts">Alerts</a></li>
     </ul>
     <div class="tab-content">
     <?php
@@ -43,6 +44,7 @@ if (!is_admin()) {
         'discovery' => 'ajax_output.php?id=capture&format=text&type=discovery&hostname='.$device['hostname'],
         'poller'    => 'ajax_output.php?id=capture&format=text&type=poller&hostname='.$device['hostname'],
         'snmp'      => 'ajax_output.php?id=capture&format=text&type=snmpwalk&hostname='.$device['hostname'],
+        'alerts'    => 'ajax_output.php?id=query&format=text&type=alerts&hostname='.$device['hostname'],
     );
 
     foreach ($tabs as $tab => $url) {