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src/opnsense/scripts/monit/toptalker.php Normal file
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#!/usr/local/bin/php
<?php
/*
* Copyright (c) 2025 EDNT GmbH
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Put this script in /usr/local/opnsense/scripts/OPNsense/Monit/toptalker.php
* and make it executable: chmod 755 toptalker.php
* NetFlow needs to be up and running with 'Capture local'
* You need 'advance mode' in Monit Service Settings to set 'Poll Time'
* Name: choose as you want, but you should add the interface in some way. (TopTalker_LAN)
* Type: needs to be 'Custom'
* Path: path to this script with the real interface name as parameter:
* /usr/local/opnsense/scripts/OPNsense/Monit/toptalker.php vtnet0
* Tests: ChangedStatus,NonZeroStatus
* Poll Time: for testing use '1 cycles'
* Results in one e-mail every 120 seconds if Polling Interval is not changed.
* For normal work use something like '0-2 0 * * *' as Poll Time
* cron style, but a minute range is required, since Monit is not exact.
* With a minute range of 3 (0-2) you get one e-mail,
* if Polling Interval has the default value of 120 seconds (2 minutes).
*
* For testing simply call this script from the commandline: ./toptalker.php
*
*/
if($argc > 1) {
$flowd = exec('sockstat -l | grep flowd');
if ($flowd != "") {
$if = $argv[1];
//echo $if;
$endtime = strtotime("now");
$starttime = $endtime - 86400;
$cmd = "/usr/local/opnsense/scripts/netflow/get_top_usage.py --provider FlowSourceAddrTotals --start_time " . $starttime . " --end_time " . $endtime . " --key_fields src_addr --value_field octets --max_hits 10 --filter 'if=$if'";
//echo $cmd;
exec($cmd, $output, $retval);
//echo "\n" . $output[0] . "\n";
//$res = '';
$res = date('d.m.Y H:i:s', $starttime) . ' - ' . date('d.m.Y H:i:s', $endstime) . " " . $if . "\n\n";
$listelements = json_decode($output[0]);
foreach($listelements as $entry) {
if($entry->last_seen != "") {
$res = $res . str_pad($entry->src_addr, 16) . str_pad(number_format($entry->total, 0, ',', '.'), 15, " ", STR_PAD_LEFT) . " " . date('Y.m.d H:i:s', $entry->last_seen) . "\n";
}
}
$res = $res . "\nCoded by EDNT GmbH (c) 2025 https://www.ednt.de/\n";
} else {
$res = "NetFlow does not Capture local\n";
}
} else {
$res = "You need an interface as parameter\n";
}
echo ">\n\n" . $res . "\n";
exit(rand(1, 255));