Merge pull request #3 from addingwell/feature/dynamic-master-cookie

Use ajax request to set the _aw_master_id cookie

README.md

@@ -24,15 +24,15 @@ The cookie lifetime is set to 13 months.
 - Contributors: Addingwell
 - Tags: uuid, cookie, visitor, tracking
 - Requires at least: 4.6
-- Tested up to: 5.7
+- Tested up to: 6.7.1
 - Requires PHP: 5.6
 - Stable tag: trunk
 - License: GPLv2 or later
 - License URI: https://www.gnu.org/licenses/gpl-2.0.html
 
 ## Installation
 
-1. Upload the plugin files to the `/wp-content/plugins/visitor-uuid-cookie` directory, or install the plugin through the WordPress plugins screen directly.
+1. Upload the plugin files to the `/wp-content/plugins/wordpress-master-cookie` directory, or install the plugin through the WordPress plugins screen directly.
 2. Activate the plugin through the 'Plugins' screen in WordPress.
 
 ## Frequently Asked Questions

mastercookie.js

@@ -0,0 +1,20 @@
+document.addEventListener("DOMContentLoaded", function() {
+    if (!document.cookie.includes("_aw_master_id")) {
+        fetch(dynamic_cookie_data.ajax_url, {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/x-www-form-urlencoded'
+            },
+            body: new URLSearchParams({
+                action: 'set_dynamic_master_cookie'
+            })
+        })
+            .then(response => response.json())
+            .then(data => {
+                if (data.success) {
+                    console.log("Cookie _aw_master_id successfully set"); // Optional: Log success message
+                }
+            })
+            .catch(error => console.error("Error setting the cookie _aw_master_id"));
+    }
+});

mastercookie.php

@@ -2,26 +2,36 @@
 /**
  * Plugin Name: Addingwell - Visitor UUID Cookie
  * Description: A simple plugin to create a visitor UUID server cookie named "_aw_master_id" with 13 months lifetime
- * Version: 1.0
+ * Version: 1.1
  * Author: Addingwell
  * Author URI: https://www.addingwell.com/
  */
 
-// Hook to initialize the UUID cookie when WordPress initializes
+if (!defined('ABSPATH')) exit; // Exit if accessed directly
 
-function set_aw_master_id() {
+function dynamic_master_cookie_enqueue_script() {
+    wp_enqueue_script('mastercookie-js', plugin_dir_url(__FILE__) . 'mastercookie.js', null, null, true);
+
+    wp_localize_script('mastercookie-js', 'dynamic_cookie_data', array(
+        'ajax_url' => admin_url('admin-ajax.php'),
+    ));
+}
+add_action('wp_enqueue_scripts', 'dynamic_master_cookie_enqueue_script');
+
+// Handle AJAX request to set the cookie
+function dynamic_master_cookie_ajax_handler() {
     $cookieName = '_aw_master_id';
     if (!isset($_COOKIE[$cookieName])) {
+        $cookieLifetime = time() + (60 * 60 * 24 * 30 * 13);
+        $domain = getMainDomain($_SERVER['SERVER_NAME']);
         $cookieValue = generateUUID();
+        setcookie($cookieName, $cookieValue, $cookieLifetime, '/', $domain, true, true);
+        wp_send_json_success('Cookie set successfully.');
     } else {
-        $cookieValue = $_COOKIE[$cookieName];
+        wp_send_json_success('Cookie already exists.');
     }
-
-    $cookieLifetime = time() + (60 * 60 * 24 * 30 * 13);
-    $domain = getMainDomain($_SERVER['SERVER_NAME']);
-    setcookie($cookieName, $cookieValue, $cookieLifetime, '/', $domain, true, true);
+    wp_die(); // Always die after handling AJAX
 }
-
 function getMainDomain($url) {
     $composedTlds = [
         'co.uk', 'gov.uk', 'ac.uk', 'org.uk', 'net.uk', 'sch.uk', 'nhs.uk', 'police.uk',
@@ -65,8 +75,7 @@ function getMainDomain($url) {
     // Default to last two parts if no composed TLD matches
     return implode('.', array_slice($parts, -2));
 }
-function generateUUID()
-{
+function generateUUID() {
     return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
         mt_rand(0, 0xFFFF), mt_rand(0, 0xFFFF),
         mt_rand(0, 0xFFFF),
@@ -76,4 +85,5 @@ function generateUUID()
     );
 }
 
-add_action('init', 'set_aw_master_id');
+add_action('wp_ajax_set_dynamic_master_cookie', 'dynamic_master_cookie_ajax_handler');
+add_action('wp_ajax_nopriv_set_dynamic_master_cookie', 'dynamic_master_cookie_ajax_handler');