hook.php

<?php

if (isset($_SERVER['HTTP_CLIENT_IP'])
  	    || isset($_SERVER['HTTP_X_FORWARDED_FOR'])
			    || !in_array(@$_SERVER['REMOTE_ADDR'], array('127.0.0.1', 'fe80::1', '::1', 'xx.xx.xx.xx'))
) {
		    header('HTTP/1.0 403 Forbidden');
			    exit('You are not allowed to access this file.');
}

function logToFile($filename, $msg){
   // open file
   $fd = fopen($filename, "a");
   // append date/time to message
   $str = "[" . date("Y/m/d h:i:s", mktime()) . "] " . $msg;
   // write string
   fwrite($fd, $str . "\n");
   // close file
   fclose($fd);
}

logToFile("docbuilder.log", "Payload received");

$folder=$_GET["project"];

logToFile("docbuilder.log", "  - Folder: $folder");

$payload=json_decode($HTTP_RAW_POST_DATA, true);

logToFile("docbuilder.log", "  - Payload: " . print_r($payload, true));

logToFile("docbuilder.log", "  - Set: " . shell_exec("set 2>&1"));

$output = shell_exec('/home/projects/kumadocs/data/kumadocs/performPostRecieve.sh ' . $folder . ' ' . $payload["repository"]["url"] . ' 2>&1');

logToFile("docbuilder.log", "  - Output: " . $output);