Monitor Trunk Failures AGI script

Ummm, Yes, TDF, that helps. I did not finish reading the thread thre I guess. I found it but stopped at the script above.
Thanks, Blake

Hi,

Can you please post the chmod or any other file permission to be applied on these script to make them actualy run ?
Thanks
Alex

I have tried some shell scripts and the above Perl script. Nothing has worked for me. Perl scripts needs extra files from CPAN, eg. Proc::PID etc. So I have put together a php script. This is working for me when installed to the current version of trixbox.

I have ever have sip accounts. The script does not report IAX, but I think it will be simple enough to add some code to report IAX status. If someone can post a usual IAX status report. eg. the result of asterisk -rx "iax2 show registry"., I will add more code.

#!/usr/bin/php -q
<?php

/** ***********************************************************
* A quick and dirty way to report a failing trunk registration.
* Run this regularly, hopefully you will get an alert about one or more failing trunks.
* You run this script at your own risk.
* Not sure what damage this can cause, but I think a bathroom leakage should have nothing to do with this.
* 2009-11 Nikol S ns at eyo.com.au
* *************************************************************
*/

// To setup,
// 1. Change the report_email to yours.
// 2. Put this file somewhere (eg. /root/cron/monitor_trunk.php), chmod it to 750. Either owned by root or asterisk.
// 3. Edit /var/spool/cron/root, and add
// */15 * * * * /root/cron/monitor_trunk.php
// to the file. Last line in the cron file must have a carriage return!
// Above entry in the cron file will run the script every 15 minutes.

// set up the email address to receive the alert email
$report_email = 'your@emailemail.com';

// No need to edit below, unless you need or want.
if (wots_up() == 'requesting')
{
//give it 10 seconds, we try again.
sleep(20);
}

$state = wots_up();

if ($state == 'requesting')
{
send_alert_email('Trunk has been sending registrating requests', $status);
}
elseif ($state == 'empty')
{
send_alert_email('Voip trunk registration status is empty', $status);
}
elseif ($state == 'no_auth')
{
send_alart_email('No Authentication is reported, wrong password?', $status);
}
elseif ($state == 'unregistered')
{
send_alart_email('We have Unregistered trunk', $status);
}
elseif ($state <> 'ok')
{
send_alert_email('Trunk status is not registered', "$state\r\n\r\n$status");
}

function wots_up()
{
global $status;

//monitor trunks, make sure it is registered.
$status = shell_exec('/usr/sbin/asterisk -rx "sip show registry"');

if (strlen(trim($status)) == 0)
{
return 'empty';
}

$lines = explode("\n", str_replace("\r\n", "\n", trim($status)));

for ($i = 1; $i < count($lines) -1; $i++)
{
if (strpos($lines[$i], 'Request Sent') !== false)
{
return 'requesting';
}
elseif(strpos($lines[$i], 'No Authentication') !== false)
{
return 'no_auth';
}
elseif(strpos($lines[$i], 'Unregistered') !== false)
{
return 'unregistered';
}

$temp = preg_split('/\s+/', $lines[$i]);
if (isset($temp[3]) AND $temp[3] <> "Registered")
{
return $lines[$i];
}
}

return 'ok';
}

function send_alert_email($subject, $email_content = '')
{
global $report_email;
mail($report_email, $subject, $email_content);
}

?>

Thank you very much for pointing out the typos! Hehe.

return ok only happens at the end fo the loop, ie. All lines have "Registered" tag as well as not other funny states. I in fact have three sip channels, it detected the third line's fault when I tried. This is a very rough code with no much test. So, please welcome inputs and corrections.

Edited with slightly changed code.
2009-11-04. Edited to fix the asterisk location. /usr/bin/asterisk => /usr/sbin/asterisk

#!/usr/bin/php -q
<?php

/**
* To monitor the trunk registration, despatch email when non-registered trunk is detected
* @package      Eyo
* @version      $Revision: 1.2 $
* @file         $RCSfile: monitor_trunk.php,v $
* @date         $Date: 2009/11/02 04:31:29 $
* @author       $Author: nsu $
*/


/** ***********************************************************
* A quick and dirty way to report a failing trunk registration.
* Run this regularly, hopefully you will get an alert about one or more failing trunks.
* You run this script at your own risk.
* Not sure what damage this can cause, but I think a bathroom leakage should have nothing to do with this.
* Nikol S ns at eyo.com.au
* *************************************************************
*/

// To setup,
// 1. Change the report_email to yours.
// 2. Put this file somewhere (eg. /root/cron/monitor_trunk.php)
//	chmod it to 750(#chmod 750 monitor_trunk.php). Either owned by root or asterisk(#chown root.root monitor_trunk.php).
// 3. Edit /var/spool/cron/root, and add
//    */15 * * * * /root/cron/monitor_trunk.php
//    to the file. Last line in the cron file must have a carriage return!
//    Above entry in the cron file will run the script every 15 minutes.
        

// set up the email address to receive the alert email
$report_email = 'your@emailemail.com';




// No need to edit below, unless you need or want.

$state = wots_up();
//echo $state;

if ($state == 'ok')
{
	//grace, usually should go this route
	exit;
}
else
{
	//keep cool for 20 seconds, we try again.
	sleep(20);
	$state = wots_up();
	$have_done = "We have retried in 20 seconds.\r\n";
}

if ($state == 'ok')
{
	//lucky we tried
	exit;
}
else
{
	$have_done .= "Trying to reload the sip channels.\r\n";
	$have_done .= shell_exec('/usr/sbin/asterisk -rx "module reload chan_sip"');
	sleep(20);
	$have_done .= "Reloaded sip channels and waited 20 seconds.\r\n";
	$state = wots_up();
}

if ($state == 'ok')
{
	//wipes the sweat
	exit;
}

$status = "$have_done\r\n=====================have done above, the current status: =====================\r\n$status";

if ($state == 'requesting')
{
	send_alert_email('Trunk has been sending registrating requests', $status);
}
elseif ($state == 'empty')
{
	send_alert_email('Voip trunk registration status is empty', $status);
}
elseif ($state == 'no_auth')
{
	send_alert_email('No Authentication is reported, wrong password?', $status);
}
elseif ($state == 'unregistered')
{
	send_alert_email('We have Unregistered trunk', $status);
}
elseif ($state == 'failed')
{
	send_alert_email('We have Registration failed trunk', $status);
}
elseif ($state == 'auth_sent')
{
	send_alert_email('We have trunk with Auth. Sent status', $status);
}
elseif ($state == 'rejected')
{
	send_alert_email('We have trunk with Rejected status', $status);
}
else
{
	send_alert_email('Trunk status is not registered', "$state\r\n\r\n$status");
}

function wots_up()
{
	global $status;
	
	//Prob the trunk registration.
	$status = shell_exec('/usr/sbin/asterisk -rx "sip show registry"');
	
	if (strlen(trim($status)) == 0)
	{
		return 'empty';
	}
	
	$lines = explode("\n", str_replace("\r\n", "\n", trim($status)));

	for ($i = 1; $i < count($lines) - 1; $i++)
	{
		//echo "line $i " .  $lines[$i] . "\n";
		if (strpos($lines[$i], 'Request Sent') !== false)
		{
			return 'requesting';
		}
		elseif(strpos($lines[$i], 'No Authentication') !== false)
		{
			return 'no_auth';
		}
		elseif(strpos($lines[$i], 'Unregistered') !== false)
		{
			return 'unregistered';
		}
		elseif (strpos($lines[$i], 'Failed') !== false)
		{
			return 'failed';
		}
		elseif (strpos($lines[$i], 'Auth. Sent') !== false)
		{
			return 'auth_sent';
		}
		elseif (strpos($lines[$i], 'Rejected') !== false)
		{
			return 'rejected';
		}
		elseif (strpos($lines[$i], 'Timeout') !== false)
		{
			return 'timeout';
		}
		elseif (strpos($lines[$i], 'Unknown') !== false)
		{
			return 'unknown';
		}
		
		$temp = preg_split('/\s+/', $lines[$i]);
		if (!isset($temp[3]))
		{
			return "Can not extract Reg State for this line: " . $lines[$i];
		}
		elseif ($temp[3] <> "Registered")
		{
			return "Unknown Reg state for this line: " . $lines[$i];
		}
	}
	
	return 'ok';
}

function send_alert_email($subject, $email_content = '')
{
	global $report_email;
	mail($report_email, $subject, $email_content);
}

?>

I created a version of my script above that runs persistantly as a daemon. It probably is not as cool as the php one as far as ease of install, but it seems to work for me.

If anyone want's it, let me know.