345 lines
11 KiB
PHP
345 lines
11 KiB
PHP
<?php
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/**
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* Plugin Name: Simple Tracking Plugin
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* Description: Adds tracking script to website header and forwards tracking data to external service
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* Version: 1.0.0
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* Author: Karl Breuer
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* Text Domain: simple-tracking
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*/
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// Exit if accessed directly
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if (!defined('ABSPATH')) {
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exit;
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}
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class Simple_Tracking_Plugin {
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// Plugin instance
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private static $instance = null;
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// Tracking server URL
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private $tracking_server_url = 'tracking1.karlbreuer.com';
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/**
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* Constructor
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*/
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private function __construct() {
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// Add the script to the header
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add_action('wp_head', array($this, 'add_tracking_script'), 10);
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// Register the endpoint
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add_action('init', array($this, 'register_tracking_endpoint'));
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// Add settings page
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add_action('admin_menu', array($this, 'add_settings_page'));
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add_action('admin_init', array($this, 'register_settings'));
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}
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/**
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* Get plugin instance
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*/
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public static function get_instance() {
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if (null === self::$instance) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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/**
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* Add tracking script to header
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*/
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public function add_tracking_script() {
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$server_url = esc_url(get_option('simple_tracking_server_url', $this->tracking_server_url));
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?>
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<!-- Global server config -->
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<script> const server = "https://<?php echo $server_url; ?>";</script>
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<!-- Tracking function -->
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<script>
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// Initialize tracking function
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function tE(eventName, additionalParams = {}) {
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// Create tracking data object
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console.log(eventName)
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const data = {
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event: eventName,
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url: window.location.href,
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ref: document.referrer,
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ua: navigator.userAgent,
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sw: window.screen.width,
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lang: navigator.language || navigator.userLanguage,
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};
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console.log(data)
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// Helper function to serialize an object into URL parameters
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function serializeObject(obj, prefix) {
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const str = [];
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for (const p in obj) {
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if (obj.hasOwnProperty(p)) {
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const k = prefix ? prefix + "[" + p + "]" : p;
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const v = obj[p];
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if (v !== null && typeof v === "object") {
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str.push(serializeObject(v, k));
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} else {
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str.push(encodeURIComponent(k) + "=" + encodeURIComponent(v));
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}
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}
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}
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return str.join("&");
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}
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// Function for fallback methods
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function sendInfo() {
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try {
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// Send to our WordPress endpoint first, which will forward to the tracking server
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const siteUrl = window.location.origin;
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const trackingUrl = `${siteUrl}/track?${serializeObject(data)}`;
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console.log(trackingUrl)
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fetch(trackingUrl, {
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method: "POST",
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mode: "no-cors",
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cache: "no-cache",
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credentials: "omit", // Don't send cookies
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headers: {
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"X-Final-Destination": server // Pass the final destination
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},
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keepalive: true, // Ensures request completes even if page unloads
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});
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return true;
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} catch (e) {
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console.log(e)
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}
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}
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// No sendBeacon support, use fallbacks
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return sendInfo();
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}
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</script>
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<!-- Set up page load tracking -->
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<script>
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document.addEventListener("DOMContentLoaded", function() {
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try {
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tE("pageload");
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} catch (error) {
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console.error("Error in DOMContentLoaded:", error);
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}
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});
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</script>
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<?php
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}
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/**
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* Register tracking endpoint
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*/
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public function register_tracking_endpoint() {
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add_rewrite_rule('^track/?$', 'index.php?tracking_endpoint=1', 'top');
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add_rewrite_tag('%tracking_endpoint%', '1');
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add_action('parse_request', array($this, 'handle_tracking_request'));
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// Flush rewrite rules only on plugin activation
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if (get_option('simple_tracking_flush_rules', false)) {
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flush_rewrite_rules();
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update_option('simple_tracking_flush_rules', false);
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}
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}
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/**
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* Handle tracking request
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*/
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public function handle_tracking_request($wp) {
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if (isset($wp->query_vars['tracking_endpoint'])) {
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// Log that we received a tracking request
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error_log('Simple Tracking Plugin: Tracking request received');
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// Log the query parameters
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error_log('Simple Tracking Plugin: Query params: ' . print_r($_GET, true));
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$this->forward_to_tracker();
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exit;
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}
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}
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/**
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* Forward the request to the tracking server
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*/
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public function forward_to_tracker() {
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// Get tracking server URL from settings
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$tracking_server_url = get_option('simple_tracking_server_url', $this->tracking_server_url);
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$forward_url = 'https://' . $tracking_server_url . '/spur';
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// Log the request (for debugging)
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error_log('Forwarding tracking request to: ' . $forward_url);
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error_log('Simple Tracking Plugin: Request method: ' . $_SERVER['REQUEST_METHOD']);
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// Create a new cURL resource
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$ch = curl_init();
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// Set URL and other appropriate options
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curl_setopt($ch, CURLOPT_URL, $forward_url);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $_SERVER['REQUEST_METHOD']);
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// Get query parameters and add IP
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$query = $_GET;
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$query['ip'] = $this->get_real_ip();
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// Build query string
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$query_string = http_build_query($query);
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curl_setopt($ch, CURLOPT_URL, $forward_url . '?' . $query_string);
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// Prepare headers
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$headers = array();
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$all_headers = function_exists('getallheaders') ? getallheaders() : $this->get_all_headers();
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// Forward all headers, checking for the final destination
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foreach ($all_headers as $name => $value) {
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if ($name == 'X-Final-Destination' && !empty($value)) {
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// If a custom destination is provided in the header, use it
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$forward_url = 'https://' . $value . '/spur';
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curl_setopt($ch, CURLOPT_URL, $forward_url . '?' . $query_string);
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error_log('Overriding destination with: ' . $value);
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}
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$headers[] = "$name: $value";
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}
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curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
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// Execute request
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$response = curl_exec($ch);
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$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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if (curl_errno($ch)) {
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error_log('cURL error: ' . curl_error($ch));
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$http_code = 500;
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}
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// Close cURL resource
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curl_close($ch);
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// Send response
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http_response_code($http_code);
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header('Content-Type: application/json');
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echo '{}';
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exit;
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}
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/**
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* Fallback implementation of getallheaders() for servers that don't have it
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*/
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private function get_all_headers() {
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$headers = [];
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foreach ($_SERVER as $name => $value) {
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if (substr($name, 0, 5) == 'HTTP_') {
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$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
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}
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}
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return $headers;
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}
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/**
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* Get the real IP address
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*/
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private function get_real_ip() {
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if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
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$ip = $_SERVER['HTTP_CLIENT_IP'];
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} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
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$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
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} else {
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$ip = $_SERVER['REMOTE_ADDR'];
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}
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return $ip;
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}
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/**
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* Add settings page
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*/
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public function add_settings_page() {
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add_options_page(
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'Tracking Settings',
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'Tracking Settings',
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'manage_options',
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'simple-tracking-settings',
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array($this, 'render_settings_page')
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);
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}
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/**
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* Register settings
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*/
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public function register_settings() {
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register_setting('simple_tracking_settings', 'simple_tracking_server_url');
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add_settings_section(
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'simple_tracking_section',
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'Tracking Settings',
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array($this, 'settings_section_callback'),
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'simple-tracking-settings'
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);
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add_settings_field(
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'simple_tracking_server_url',
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'Tracking Server URL',
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array($this, 'server_url_callback'),
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'simple-tracking-settings',
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'simple_tracking_section'
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);
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}
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/**
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* Settings section callback
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*/
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public function settings_section_callback() {
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echo '<p>Configure your tracking server settings.</p>';
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}
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/**
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* Server URL field callback
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*/
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public function server_url_callback() {
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$value = get_option('simple_tracking_server_url', $this->tracking_server_url);
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echo '<input type="text" id="simple_tracking_server_url" name="simple_tracking_server_url" value="' . esc_attr($value) . '" class="regular-text">';
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echo '<p class="description">Enter the tracking server URL without https:// (e.g., tracking1.karlbreuer.com)</p>';
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echo '<p class="description">You will find this in your domain screen in the Palantics app</p>';
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}
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/**
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* Render settings page
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*/
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public function render_settings_page() {
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?>
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<div class="wrap">
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<h1><?php echo esc_html(get_admin_page_title()); ?></h1>
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<form method="post" action="options.php">
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<?php
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settings_fields('simple_tracking_settings');
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do_settings_sections('simple-tracking-settings');
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submit_button();
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?>
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</form>
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</div>
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<?php
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}
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/**
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* Activate plugin
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*/
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public static function activate() {
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// Set flag to flush rewrite rules on next load
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update_option('simple_tracking_flush_rules', true);
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}
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}
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// Initialize the plugin
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function simple_tracking_init() {
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Simple_Tracking_Plugin::get_instance();
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}
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add_action('plugins_loaded', 'simple_tracking_init');
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// Register activation hook
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register_activation_hook(__FILE__, array('Simple_Tracking_Plugin', 'activate'));
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