callshaper-freepbx.php

#!/usr/bin/env php
<?php
/************************************************************************
 * callshaper-freepbx.php
 *
 * Latest version: https://gist.github.com/lgaetz/7e61c464588623662fcfdf1367e97c32
 *
 * AGI script for adding Stir/Shaken signatures to outbound SIP calls from 
 * Freepbx. Modified for FreePBX from callshaper.php as published by tiltx.com
 *    ref: https://help.smartcarrier.io/portal/en/kb/articles/tiltx-call-shaper-module
 *
 * Usage:  Copy this script to /var/lib/asterisk/agi-bin and chown to asterisk:asterisk
           Add custom diaplan to extension_custom.conf 
 *
 *               [macro-dialout-trunk-predial-hook]
 *               exten => s,1,Noop(Entering user defined context macro-dialout-trunk-predial-hook in extensions_custom.conf)
 *               exten => s,n,AGI(callshaper-freepbx.php,${CALLERID(dnid)},${CALLERID(num)})
 *               exten => s,n,Noop(Proceeding with Identity SIP header: ${IdentityHeader})
 *               exten => s,n,GoSub(func-set-sipheader,s,1(Identity,${IdentityHeader}))
 *               exten => s,n,MacroExit()
 *               ; end macro-dialout-trunk-predial-hook
 *       
 * License: GNU/GPL3
 *
 * Version History:
 *       2022-06-17  Initial Commit
 *
 ************************************************************************/
  
set_time_limit(30);

// edit following to API key provided by Tiltx
$apiKey = "api-key-provided-by-tiltx";

if (!$apiKey) {
    exit('Missing API key');
}

require('phpagi.php');
error_reporting(E_ALL);

$agi = new AGI();
$agi->verbose("Starting Script.");


//create curl resource
$ch = curl_init();
$url = sprintf('https://api.shaper.tiltx.com/Calls/shaper?ToNumber=' . $argv[1] . '&FromNumber=' . $argv[2]);

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_HTTPHEADER, [
    sprintf('x-api-key: %s', $apiKey),
    'Content-Type: application/json',
]);

//return the transfer as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

// $output contains the output string
$output = curl_exec($ch);

// close curl resource to free up system resources
curl_close($ch);

$response = json_decode($output, true);
// $agi->verbose("Reponse ".$output);   // uncomment for debug

$agi->verbose('Response: ' . implode(",",$response));

// set var to use in dialplan
$agi->set_variable("IdentityHeader", $response['Identity']);


exit;