hostbill.webhook.php

<?php
 
$secret = ''; // paste your Secret here
 
//fetch request body
$data = file_get_contents('php://input');
$payload = $_SERVER["HTTP_HB_TIMESTAMP"] . $data;
 
$signature = hash_hmac('sha256', $payload, $secret);
 
//compare signature in header with the one computed above
if($signature !== $_SERVER["HTTP_HB_SIGNATURE"])
    die('invalid signature');
 
// signature valid, verify timestamp
if($_SERVER["HTTP_HB_TIMESTAMP"] < time() - 60)
    die('timestamp older than 60 sec');

// Decode the JSON data in the request body
$payloadData = json_decode($data, true);

// Check if the JSON decoding was successful
if ($payloadData === null) {
    die('Invalid JSON data in webhook payload');
}

// Define the directory where you want to save the JSON files
$saveDirectory = 'webhook_files/';

// Ensure the directory exists; create it if it doesn't
if (!file_exists($saveDirectory)) {
    mkdir($saveDirectory, 0777, true);
}

// Extract the event name from the payload
$event = $payloadData['event'];

// Generate a timestamp
$timestamp = time(); // You can customize the timestamp format if needed

// Create the JSON file name with the event name and timestamp
$fileName = $event . '_' . $timestamp . '.json';

// Encode the payload data back to JSON format
$jsonPayload = json_encode($payloadData, JSON_PRETTY_PRINT);

// Save the JSON data to the file
$filePath = $saveDirectory . $fileName;
file_put_contents($filePath, $jsonPayload);

// Output a success message
echo "JSON file saved as: $filePath";