From 66e7b37f92f7048747019eb7d35c0d648791ddd8 Mon Sep 17 00:00:00 2001
From: dwindown <dwinx.ramz@gmail.com>
Date: Fri, 17 Apr 2026 19:52:01 +0700
Subject: [PATCH] =?UTF-8?q?fix:=20resolve=20all=20Week=202=20performance?=
 =?UTF-8?q?=20&=20security=20issues=20(F1.10=E2=80=93F1.19)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Security:
- Replace maybe_serialize() in cookies with json_encode() (PHP object injection fix)
- Add PayPal webhook signature verification
- Add current_user_can('manage_options') to all 18 admin-ajax handlers

Performance:
- Remove flush_rewrite_rules() from init hooks (Thankyou + Payment)
- Add activation/deactivation hooks for flush_rewrite_rules
- Cache currency, country, flags JSON reads in static variables
- Add server-side pagination to Customer::formipay_tabledata_customers()
- Optimize Order::formipay_tabledata_orders() with COUNT(*) GROUP BY

Cleanup:
- Delete Paypal.phpbak backup file
- Fix timezone hardcode Asia/Jakarta → wp_timezone_string()
- Create uninstall.php for proper cleanup on uninstall

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---
 admin/functions.php                |  30 +-
 formipay.php                       |  14 +
 includes/Access.php                |  24 +
 includes/Coupon.php                |  28 +
 includes/Customer.php              |  50 +-
 includes/Form.php                  |  24 +
 includes/Integration/Paypal.php    |  37 +-
 includes/Integration/Paypal.phpbak | 821 -----------------------------
 includes/License.php               |  12 +
 includes/Order.php                 |  63 ++-
 includes/Payment/Payment.php       |   1 -
 includes/Product.php               |  24 +
 includes/Render.php                |   2 +-
 includes/Thankyou.php              |  17 +-
 uninstall.php                      |  62 +++
 15 files changed, 341 insertions(+), 868 deletions(-)
 delete mode 100644 includes/Integration/Paypal.phpbak
 create mode 100644 uninstall.php

diff --git a/admin/functions.php b/admin/functions.php
index 2bd984113..b05bef876 100644
--- a/admin/functions.php
+++ b/admin/functions.php
@@ -26,11 +26,13 @@ function formipay_field_type_collection() {
 }
 
 function formipay_currency_array() {
-
+    static $cache = null;
+    if ($cache !== null) {
+        return $cache;
+    }
     $json = file_get_contents(FORMIPAY_PATH . 'admin/assets/json/currencies.json');
-    $array = json_decode($json, true);
-    return $array;
-
+    $cache = json_decode($json, true);
+    return $cache;
 }
 
 function formipay_is_multi_currency_active() {
@@ -146,22 +148,26 @@ function get_global_currency_array() {
 }
 
 function formipay_country_array() {
-
+    static $cache = null;
+    if ($cache !== null) {
+        return $cache;
+    }
     $json = file_get_contents(FORMIPAY_PATH . 'admin/assets/json/country.json');
-    $array = json_decode($json, true);
-    return $array;
-
+    $cache = json_decode($json, true);
+    return $cache;
 }
 
 function formipay_get_flag_by_currency($currency) {
-
+    static $flags = null;
     if(strpos($currency, ':::')){
         $currency = explode(':::', $currency);
         $currency = $currency[0];
     }
-    $json = file_get_contents(FORMIPAY_PATH . 'admin/assets/json/flags.json');
-    $array = json_decode($json, true);
-    foreach($array as $country){
+    if ($flags === null) {
+        $json = file_get_contents(FORMIPAY_PATH . 'admin/assets/json/flags.json');
+        $flags = json_decode($json, true);
+    }
+    foreach($flags as $country){
         if($currency == $country['code']){
             return $country['flag'];
         }
diff --git a/formipay.php b/formipay.php
index 787d24903..1a1558adc 100644
--- a/formipay.php
+++ b/formipay.php
@@ -50,6 +50,20 @@ spl_autoload_register(function ($class) {
 
 \Formipay\Init::get_instance();
 
+register_activation_hook( __FILE__, 'formipay_activate' );
+function formipay_activate() {
+    // Instantiate singletons so rewrite rules get registered via init hooks
+    \Formipay\Thankyou::get_instance();
+    \Formipay\Integration\Paypal::get_instance();
+    \Formipay\Payment\BankTransfer::get_instance();
+    flush_rewrite_rules();
+}
+
+register_deactivation_hook( __FILE__, 'formipay_deactivate' );
+function formipay_deactivate() {
+    flush_rewrite_rules();
+}
+
 // function formipay_add_defer_attribute($tag, $handle) {
 //     if ( 'product-details' === $handle ) {
 //         // Add defer attribute
diff --git a/includes/Access.php b/includes/Access.php
index 5d9d59afa..8fe150d03 100644
--- a/includes/Access.php
+++ b/includes/Access.php
@@ -434,6 +434,10 @@ class Access {
 
         check_ajax_referer( 'formipay-admin-access-nonce', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $args = [
             'post_type' => 'formipay-access',
             'posts_per_page' => -1,
@@ -524,6 +528,10 @@ class Access {
 
         check_ajax_referer( 'formipay-admin-access-nonce', 'nonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if (!isset($_POST['search']) || empty($_POST['search'])) {
             wp_send_json_error( __('No search term provided.', 'formipay') );
         }
@@ -554,6 +562,10 @@ class Access {
 
         check_ajax_referer( 'formipay-admin-access-nonce', 'nonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if( !empty($_REQUEST['title']) ){
             $title = sanitize_text_field( wp_unslash($_REQUEST['title']) );
             $post_id = wp_insert_post( [
@@ -582,6 +594,10 @@ class Access {
 
         check_ajax_referer( 'formipay-admin-access-nonce', 'nonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if( empty($_REQUEST['id']) ){
             wp_send_json_error( [
                 'title' => esc_html__( 'Failed', 'formipay' ),
@@ -613,6 +629,10 @@ class Access {
 
         check_ajax_referer( 'formipay-admin-access-nonce', 'nonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if( empty($_REQUEST['ids']) ){
             wp_send_json_error( [
                 'title' => esc_html__( 'Failed', 'formipay' ),
@@ -656,6 +676,10 @@ class Access {
 
         check_ajax_referer( 'formipay-admin-access-nonce', 'nonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if( empty($_REQUEST['id']) ){
             wp_send_json_error( [
                 'title' => esc_html__('Failed', 'formipay'),
diff --git a/includes/Coupon.php b/includes/Coupon.php
index a32b06791..1ab79316f 100644
--- a/includes/Coupon.php
+++ b/includes/Coupon.php
@@ -453,6 +453,10 @@ class Coupon {
 
         check_ajax_referer( 'formipay-frontend-nonce', 'security' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $code = isset($_REQUEST['code']) ? sanitize_text_field( wp_unslash($_REQUEST['code']) ) : '';
         $form_id = isset($_REQUEST['form']) ? intval( $_REQUEST['form'] ) : 0;
 
@@ -566,6 +570,10 @@ class Coupon {
 
         check_ajax_referer( 'formipay-admin-coupon-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $args = [
             'post_type' => 'formipay-coupon',
             'posts_per_page' => -1,
@@ -670,6 +678,10 @@ class Coupon {
 
         check_ajax_referer( 'formipay-admin-coupon-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if (!isset($_POST['search']) || empty($_POST['search'])) {
             wp_send_json_error( __('No search term provided.', 'formipay') );
         }
@@ -700,6 +712,10 @@ class Coupon {
 
         check_ajax_referer( 'formipay-admin-coupon-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $code = isset($_REQUEST['title']) ? sanitize_text_field( wp_unslash($_REQUEST['title']) ) : '';
 
         if( !empty($code) && '' !== $code ){
@@ -731,6 +747,10 @@ class Coupon {
 
         check_ajax_referer( 'formipay-admin-coupon-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $post_id = isset($_REQUEST['id']) ? intval($_REQUEST['id']) : 0;
 
         $delete = wp_delete_post($post_id, true);
@@ -755,6 +775,10 @@ class Coupon {
 
         check_ajax_referer( 'formipay-admin-coupon-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if( empty($_REQUEST['ids']) ){
             wp_send_json_error( [
                 'title' => esc_html__( 'Failed', 'formipay' ),
@@ -798,6 +822,10 @@ class Coupon {
         
         check_ajax_referer( 'formipay-admin-coupon-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $post_id = isset($_REQUEST['id']) ? intval($_REQUEST['id']) : 0;
         $post = get_post($post_id);
         if (!$post) {
diff --git a/includes/Customer.php b/includes/Customer.php
index b685a6ba1..953aef428 100644
--- a/includes/Customer.php
+++ b/includes/Customer.php
@@ -233,11 +233,40 @@ class Customer {
 
         check_ajax_referer( 'formipay-admin-access-nonce', '_wpnonce' );
 
-        $get_all_customers = $this->get();
-        $customers = [];
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
 
-        if(!empty($get_all_customers)){
-            foreach($get_all_customers as $customer){
+        global $wpdb;
+        $table = $wpdb->prefix . 'formipay_customers';
+
+        $limit = isset($_REQUEST['limit']) ? intval($_REQUEST['limit']) : 10;
+        $offset = isset($_REQUEST['offset']) ? intval($_REQUEST['offset']) : 0;
+        $keyword = isset($_REQUEST['keyword']) ? sanitize_text_field(wp_unslash($_REQUEST['keyword'])) : '';
+
+        $where = '';
+        $params = [];
+
+        if (!empty($keyword)) {
+            $where = "WHERE `name` LIKE %s OR `email` LIKE %s OR `phone` LIKE %s";
+            $like = '%' . $wpdb->esc_like($keyword) . '%';
+            $params = [$like, $like, $like];
+        }
+
+        // Get total count
+        $count_sql = "SELECT COUNT(*) FROM {$table} {$where}";
+        // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.NotPrepared
+        $total = empty($params) ? $wpdb->get_var($count_sql) : $wpdb->get_var($wpdb->prepare($count_sql, ...$params));
+
+        // Get paginated results
+        $sql = "SELECT * FROM {$table} {$where} ORDER BY `id` DESC LIMIT %d OFFSET %d";
+        $params_paginated = array_merge($params, [$limit, $offset]);
+        // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.NotPrepared
+        $get_customers = $wpdb->get_results($wpdb->prepare($sql, ...$params_paginated));
+
+        $customers = [];
+        if (!empty($get_customers)) {
+            foreach ($get_customers as $customer) {
                 $customers[] = [
                     'ID' => $customer->id,
                     'name' => $customer->name,
@@ -247,14 +276,13 @@ class Customer {
                 ];
             }
         }
-    
-        // Prepare response data
+
         $response = [
             'results' => $customers,
-            'total' => count($get_all_customers),
-            'posts_report' =>  $customers
+            'total' => (int) $total,
+            'posts_report' => $customers
         ];
-    
+
         wp_send_json($response);
 
     }
@@ -263,6 +291,10 @@ class Customer {
 
         check_ajax_referer( 'formipay-form-editor', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $form_id = isset($_REQUEST['post']) ? intval($_REQUEST['post']) : 0;
 
         $saved = [
diff --git a/includes/Form.php b/includes/Form.php
index 3273fbcb3..98cd459cf 100644
--- a/includes/Form.php
+++ b/includes/Form.php
@@ -1525,6 +1525,10 @@ class Form {
 
         check_ajax_referer( 'formipay-form-editor', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if(isset($_GET['post_id'])){
             $post_id = intval($_GET['post_id']);
             $formipay_post_meta = get_post_meta($post_id, 'formipay_settings', true);
@@ -1545,6 +1549,10 @@ class Form {
 
         check_ajax_referer( 'formipay-admin-post', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         global $wpdb;
         
         // Initialize default args
@@ -1623,6 +1631,10 @@ class Form {
 
         check_ajax_referer( 'formipay-admin-post', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $title = isset($_REQUEST['title']) ? sanitize_text_field( wp_unslash($_REQUEST['title']) ) : '';
 
         if( !empty($title) && '' !== $title ){
@@ -1692,6 +1704,10 @@ class Form {
 
         check_ajax_referer( 'formipay-admin-post', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $form_id = isset($_REQUEST['id']) ? intval($_REQUEST['id']) : '';
 
         $delete = wp_delete_post($form_id, true);
@@ -1716,6 +1732,10 @@ class Form {
 
         check_ajax_referer( 'formipay-admin-post', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if( empty($_REQUEST['ids']) ){
             wp_send_json_error( [
                 'title' => esc_html__( 'Failed', 'formipay' ),
@@ -1759,6 +1779,10 @@ class Form {
 
         check_ajax_referer( 'formipay-admin-post', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $post_id = isset($_REQUEST['id']) ? intval($_REQUEST['id']) : '';
         $post = get_post($post_id);
         if (!$post) {
diff --git a/includes/Integration/Paypal.php b/includes/Integration/Paypal.php
index 60471a561..e643adf7c 100644
--- a/includes/Integration/Paypal.php
+++ b/includes/Integration/Paypal.php
@@ -729,10 +729,45 @@ class Paypal extends Payment {
     public function handle_paypal_webhook(\WP_REST_Request $request) {
         $body = $request->get_body();
         $event = json_decode($body, true);
-    
+
         if (!$event || empty($event['event_type'])) {
             return new \WP_Error('invalid_webhook', 'Invalid webhook payload');
         }
+
+        // Verify webhook signature
+        $formipay_settings = get_option('formipay_settings');
+        $headers = $request->get_headers();
+
+        $auth_algo         = $headers['paypal_auth_algo'][0] ?? '';
+        $transmission_id   = $headers['paypal_transmission_id'][0] ?? '';
+        $cert_url          = $headers['paypal_cert_url'][0] ?? '';
+        $transmission_sig  = $headers['paypal_transmission_sig'][0] ?? '';
+        $transmission_time = $headers['paypal_transmission_time'][0] ?? '';
+        $webhook_id        = $formipay_settings['paypal_webhook_id'] ?? '';
+
+        if (!empty($webhook_id) && !empty($transmission_id) && !empty($transmission_sig)) {
+            $expected = $transmission_id . '|' . $event['resource']['id'] ?? '' . '|' . $transmission_time . '|' . $webhook_id . '|' . crc32($body);
+            $sig_base64 = base64_encode($expected);
+
+            // Fetch certificate and verify
+            $cert_response = wp_remote_get($cert_url);
+            if (is_wp_error($cert_response)) {
+                return new \WP_Error('cert_fetch_failed', 'Failed to fetch PayPal certificate');
+            }
+            $cert = wp_remote_retrieve_body($cert_response);
+
+            $public_key = openssl_pkey_get_public($cert);
+            if ($public_key === false) {
+                return new \WP_Error('invalid_cert', 'Failed to load PayPal certificate');
+            }
+
+            $verified = openssl_verify($expected, base64_decode($transmission_sig), $public_key, 'sha256WithRSAEncryption');
+            openssl_free_key($public_key);
+
+            if ($verified !== 1) {
+                return new \WP_Error('invalid_signature', 'Webhook signature verification failed');
+            }
+        }
     
         // Example: get order_id from custom_id or invoice_number in resource
         $resource = $event['resource'];
diff --git a/includes/Integration/Paypal.phpbak b/includes/Integration/Paypal.phpbak
deleted file mode 100644
index ae6683e7d..000000000
--- a/includes/Integration/Paypal.phpbak
+++ /dev/null
@@ -1,821 +0,0 @@
-<?php
-namespace Formipay\Integration;
-use Formipay\Traits\SingletonTrait;
-use Formipay\Payment\Payment;
-// Exit if accessed directly
-if ( ! defined( 'ABSPATH' ) ) exit;
-
-class Paypal extends Payment {
-
-    use SingletonTrait;
-
-    private $gateway = 'paypal';
-
-    protected function __construct() {
-
-        parent::__construct();
-
-        add_action( 'init',                                                     [$this, 'create_db'] );
-        add_action( 'formipay/order/new',                                       [$this, 'add_transaction'], 99 );
-
-        add_filter( 'formipay/form-config/tab:payments/gateways',               [$this, 'add_gateway'] );
-        add_filter( 'formipay/form-config/tab:payments',                        [$this, 'add_paypal_settings'] );
-        add_filter( 'formipay/global-settings/tab:payment',                     [$this, 'add_settings'] );
-        add_filter( 'formipay/payment-list/paypal/label',                       [$this, 'set_frontend_label'] );
-        add_filter( 'formipay/payment-list/paypal/logo',                        [$this, 'set_frontend_logo'] );
-        add_filter( 'formipay/order/result',                                    [$this, 'process_payment'], 99 );
-        add_action( 'parse_query',                                              [$this, 'check_parse_query'] );
-        add_filter( 'formipay/order/payment-details/paypal',                    [$this, 'render_payment_details'], 999, 4 );
-
-        add_filter('formipay/notification/order/email/action-button',           [$this, 'render_email_action_button'], 99, 3 );
-
-    }
-
-    public function create_db() {
-
-        global $wpdb;
-        $charset_collate = $wpdb->get_charset_collate();
-
-        $create[] = "CREATE TABLE `{$wpdb->base_prefix}formipay_paypal_trx` (
-            `id` bigint(20) NOT NULL AUTO_INCREMENT,
-            `created_date` datetime DEFAULT CURRENT_TIMESTAMP,
-            `form_id` int DEFAULT 0,
-            `order_id` int DEFAULT 0,
-            `currency_code` text,
-            `total` float(10, 2) DEFAULT 0,
-            `status` text,
-            `meta_data` text,
-            PRIMARY KEY (`id`)
-        ) $charset_collate;";
-
-        require_once ABSPATH . 'wp-admin/includes/upgrade.php';
-
-        dbDelta($create);
-
-    }
-
-    public function add_transaction($order_data) {
-
-        $form_id = absint($order_data['form_id'] ?? 0);
-
-        $formipay_settings = get_option('formipay_settings');
-        $timeout = isset($formipay_settings['paypal_timeout']) ? (int) $formipay_settings['paypal_timeout'] : 1440;
-        
-        $currency_meta = formipay_get_post_meta($form_id, 'product_currency');
-        $currency_parts = explode(':::', $currency_meta);
-        $currency = !empty($currency_parts[0]) ? sanitize_text_field($currency_parts[0]) : '';
-    
-        if($this->gateway === ($order_data['payment_gateway'] ?? '')) {
-
-            $submit_args = [
-                'created_date'  => formipay_date('Y-m-d H:i:s', strtotime($order_data['created_date'] ?? 'now')),
-                'form_id'       => $form_id,
-                'order_id'      => absint($order_data['id'] ?? 0),
-                'currency_code' => $currency,
-                'total'         => floatval($order_data['total'] ?? 0),
-                'status'        => 'PENDING',
-                'meta_data'     => maybe_serialize([
-                    'request_response'  => maybe_serialize($order_data['payment_callback']),
-                    'payer_action_url'  => esc_url_raw($order_data['redirect_url'] ?? '')
-                ])
-            ];
-    
-            global $wpdb;
-            $table = $wpdb->prefix . 'formipay_paypal_trx';
-    
-            $format = [
-                '%s', // created_date
-                '%d', // form_id
-                '%d', // order_id
-                '%s', // currency_code
-                '%f', // total
-                '%s', // status
-                '%s'  // meta_data
-            ];
-    
-            // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
-            $wpdb->insert($table, $submit_args, $format);
-
-            wp_schedule_single_event( 
-                (int) formipay_date('timestamp') + $timeout, 'formipay/order/payment-timeout', [
-                    'order_id' => $order_data['id'],
-                    'payment_gateway' => 'paypal'
-                ] 
-            );
-        }
-    }
-
-    public function auto_cancel_order_on_timeout($order_id, $payment_gateway) {
-
-        if($payment_gateway == 'paypal'){
-
-            global $wpdb;
-            $order = formipay_get_order($order_id);
-            if($order['status'] !== 'completed'){
-                Order::update($order_id, [
-                    'status' => 'cancelled'
-                ]);
-                $this->cancel_payment($order_id);
-            }
-            
-        }
-
-    }
-    
-    public function get_transaction($order_id = 0) {
-
-        global $wpdb;
-        $table = $wpdb->prefix .'formipay_paypal_trx';
-        if($order_id == 0){
-            // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
-            $get = $wpdb->get_results(
-                $wpdb->prepare(
-                    "SELECT * FROM %i", $table
-                )
-            );
-        }else{
-            // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
-            $get = $wpdb->get_row(
-                $wpdb->prepare(
-                    "SELECT * FROM %i WHERE `order_id` = %d", $table, $order_id
-                )
-            );
-        }
-        
-        return $get;
-
-    }
-
-    public function update_transaction($order_id, $status, $callback) {
-
-        $args = [
-            'status'    => sanitize_text_field( $status ),
-            'meta_data' => maybe_serialize( $callback )
-        ];
-
-        global $wpdb;
-        $table = $wpdb->prefix . 'formipay_paypal_trx';
-        $where = ['order_id' => $order_id];
-
-        // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
-        $update = $wpdb->update(
-            $table, $args, $where
-        );
-
-        return $update;
-
-    }
-
-    public function add_gateway($gateways) {
-
-        $formipay_settings = get_option('formipay_settings');
-
-        if(isset($formipay_settings['paypal_toggle']) && $formipay_settings['paypal_toggle'] == 'yes') {
-            $gateways[] = [
-                'id' => $this->gateway,
-                'gateway' => __( 'Paypal', 'formipay' )
-            ];
-        }
-
-        return $gateways;
-
-    }
-
-    public function add_settings($fields) {
-
-        $payment_instruction = file_get_contents( FORMIPAY_PATH . 'admin/templates/paypal-instruction.html' );
-
-        $paypal_settings = array(
-            $this->gateway.'_toggle' => array(
-                'type' => 'checkbox',
-                'label' => __( 'Activate Paypal', 'formipay' ),
-                'submenu' => __( 'Paypal', 'formipay' )
-            ),
-            $this->gateway.'_account_group' => array(
-                'type' => 'group_title',
-                'label' => __( 'Paypal Account', 'formipay' ),
-                'submenu' => __( 'Paypal', 'formipay' ),
-                'dependency' => array(
-                    'key' => $this->gateway.'_toggle',
-                    'value' => 'not_empty' 
-                ),
-                'group' => 'started'
-            ),
-            $this->gateway.'_instruction' => array(
-                'type' => 'notification_message',
-                'description' => $payment_instruction,
-                'buttons' => array(
-                    'show_instruction' => array(
-                        'text' => __( 'Show Instruction', 'formipay' ),
-                        'class' => 'show-instruction'
-                    )
-                ),
-                'dependency' => array(
-                    'key' => $this->gateway.'_toggle',
-                    'value' => 'not_empty' 
-                ),
-                'submenu' => __( 'Paypal', 'formipay' )
-            ),
-            $this->gateway.'_client_id' => array(
-                'type' => 'text', 
-                'label' => __( 'Client ID', 'formipay' ),
-                'submenu' => __( 'Paypal', 'formipay' ),
-                'dependency' => array(
-                    'key' => $this->gateway.'_toggle',
-                    'value' => 'not_empty' 
-                )
-            ),
-            $this->gateway.'_secret' => array(
-                'type' => 'text',
-                'label' => __( 'Secret', 'formipay' ),
-                'submenu' => __( 'Paypal', 'formipay' ),
-                'dependency' => array(
-                    'key' => $this->gateway.'_toggle',
-                    'value' => 'not_empty' 
-                )
-            ),
-            $this->gateway.'_environment' => array(
-                'type' => 'select',
-                'label' => __( 'Environment', 'formipay' ),
-                'options' => array(
-                    'sandbox' => __( 'Sandbox', 'formipay' ),
-                    'production' => __( 'Production', 'formipay' )
-                ),
-                'value' => 'sandbox',
-                'submenu' => __( 'Paypal', 'formipay' ),
-                'dependency' => array(
-                    'key' => $this->gateway.'_toggle',
-                    'value' => 'not_empty' 
-                )
-            ),
-            $this->gateway.'_merchant_email' => array(
-                'type' => 'text',
-                'label' => __( 'Merchant Email', 'formipay' ),
-                'submenu' => __( 'Paypal', 'formipay' ),
-                'dependency' => array(
-                    'key' => $this->gateway.'_toggle',
-                    'value' => 'not_empty' 
-                ),
-            ),
-            $this->gateway.'_timeout' => array(
-                'type'      => 'number',
-                'label'     => __( 'Payment Timeout (minute)', 'formipay' ),
-                'description' => __( 'Set a timeout to wait for payment. After this timeout is up, the order status automatically changes to cancelled.', 'formipay' ),
-                'value'     => 120,
-                'group'     => 'ended',
-                'submenu'   => __( 'Paypal', 'formipay' ),
-                'dependency' => array(
-                    'key' => $this->gateway.'_toggle',
-                    'value' => 'not_empty' 
-                ),
-                'group'     => 'ended'
-            ),
-        );
-
-        foreach($paypal_settings as $key => $value) {
-            $fields[$key] = $value;
-        }
-
-        return $fields;
-
-    }
-
-    public function add_paypal_settings($fields) {
-
-        $paypal_settings = array(
-
-            $this->gateway.'_confirmation_notice_message_group' => array(
-                'type'  => 'group_title',
-                'label' => __( 'Confirmation Notice Messages', 'formipay' ),
-                'description' => __( 
-                    'Set notice message on every condition about attempting to confirm the payment', 'formipay' ),
-                'submenu'   => __( 'Paypal', 'formipay' ),
-                'group' => 'started'
-            ),
-            $this->gateway.'_confirmation_update_to_status' => array(
-                'type'  => 'select',
-                'label' => __( 'Change status order to', 'formipay' ),
-                'options' => formipay_order_status_list(),
-                'value' => 'payment-confirm',
-                'submenu'   => __( 'Paypal', 'formipay' ),
-            ),
-            $this->gateway.'_confirmation_message_success' => array(
-                'type'  => 'hint_textarea',
-                'label' => __( 'Successfully Confirmed Message', 'formipay' ),
-                'hints' => array(
-                    'order_id' => __('Order ID', 'formipay')
-                ),
-                'value' => __('Successfully confirmed payment for #{{order_id}}', 'formipay'),
-                'description' => __('When successfully change the order status to the preferred one', 'formipay'),
-                'submenu'   => __( 'Paypal', 'formipay' ),
-            ),
-            $this->gateway.'_confirmation_message_already_confirmed' => array(
-                'type'  => 'hint_textarea',
-                'label' => __( 'Has Been Confirmed Message', 'formipay' ),
-                'hints' => array(
-                    'order_id' => __('Order ID', 'formipay')
-                ),
-                'value' => __('#{{order_id}} has been confirmed', 'formipay'),
-                'description' => __('When the order status has been the preferred one', 'formipay'),
-                'submenu'   => __( 'Paypal', 'formipay' ),    
-            ),
-            $this->gateway.'_confirmation_message_error' => array(
-                'type'  => 'hint_textarea',
-                'label' => __( 'Failed to Confirm Message', 'formipay' ),
-                'hints' => array(
-                    'order_id' => __('Order ID', 'formipay'),
-                    'system_error_message' => __('System Error Message', 'formipay')
-                ),
-                'value' => __('Failed to proceed. Error: {{system_error_message}}', 'formipay'),
-                'description' => __('When error to change the order status to the preferred one', 'formipay'),
-                'submenu'   => __( 'Paypal', 'formipay' ),
-                'group' => 'ended'
-            )
-        );
-
-        foreach($paypal_settings as $key => $value) {
-            $fields[$key] = $value;
-        }
- 
-        return $fields;
-
-    }
-
-    public function set_frontend_label($label){
-
-        $label = __( 'Paypal', 'formipay' );
-
-        return $label;
-
-    }
-
-    public function set_frontend_logo($logo){
-
-        if($logo == false){
-            $logo = FORMIPAY_URL . 'public/assets/img/paypal.png';
-        }
-
-        return $logo;
-
-    }
-
-    public function prepare_payload($order_data) {
-
-        // error_log('current order'. $order_data['id'] . ': ' . print_r($order_data, true));
-
-        $form_id = intval($order_data['form_id']);
-        $order_details = $order_data['items'];
-
-        if($this->gateway == $order_data['payment_gateway']){
-
-            $formipay_settings = get_option('formipay_settings');
-
-            $grand_total = floatval($order_data['total']);
-    
-            // Currency
-            $currency = explode(':::', formipay_get_post_meta($form_id, 'product_currency'));
-            $currency = $currency[0];
-
-            $currency_decimal_digits = formipay_get_post_meta($form_id, 'product_currency_decimal_digits');
-            $currency_decimal_symbol = formipay_get_post_meta($form_id, 'product_currency_decimal_symbol');
-            $currency_thousand_separator = formipay_get_post_meta($form_id, 'product_currency_thousand_separator');
-
-            $slug = 'thankyou';
-            $formipay_settings = get_option('formipay_settings');
-            if(!empty($formipay_settings['thankyou_link'])){
-                $slug = $formipay_settings['thankyou_link'];
-            }
-
-            if(formipay_get_post_meta($form_id, 'product_type') == 'digital'){
-                $shipping_preference = 'NO_SHIPPING';
-            }else{
-                $shipping_preference = 'SET_PROVIDED_ADDRESS';
-            }
-
-            // Setup items
-            $items = [];
-            foreach($order_details as $item){                
-                $qty = 1;
-                if(!empty($item['qty'])){
-                    $qty = $item['qty'];
-                }
-                if(floatval($item['amount']) >= 0){
-                    $items[] = [
-                        'name' => $item['item'],
-                        'unit_amount' => [
-                            'currency_code' => $currency,
-                            'value' => floatval($item['amount'])
-                        ],
-                        'quantity' => $qty
-                    ];
-                }
-            }
-
-            $items = apply_filters('formipay/order/paypal/payload/items', $items, $currency, $order_data);
-
-            $breakdown = array(
-                "item_total" => array(
-                    "currency_code" => $currency,
-                    "value" => $grand_total
-                )
-            );
-            $breakdown = apply_filters('formipay/order/paypal/payload/breakdown', $breakdown, $currency, $order_data);
-
-            $unique_id = $order_data['meta_data']['session_id']['value'];
-        
-            // Prepare the payload
-            $payload = json_encode(array(
-                "intent" => "CAPTURE",
-                "purchase_units" => array(
-                    array(
-                        "amount" => array(
-                            "currency_code" => $currency,
-                            "value" => $grand_total, // Format amount
-                            "breakdown" => $breakdown
-                        ),
-                        "items" => $items
-                    )
-                ),
-                'payment_source' => array(
-                    'paypal' => array(
-                        'experience_context' => array(
-                            'return_url' => site_url('/payment-confirm/'.$this->gateway.'/'.base64_encode($order_data['form_id'].':::'.$order_data['id'].':::'.$unique_id).'?paypal-status=success'),
-                            'cancel_url' => site_url('/payment-confirm/'.$this->gateway.'/'.base64_encode($order_data['form_id'].':::'.$order_data['id'].':::'.$unique_id).'?paypal-status=cancel'),
-                            'user_action' => 'PAY_NOW',
-                            'brand_name' => 'FORMIPAY INC',
-                            'local' => 'en-US',
-                            'landing_page' => 'LOGIN',
-                            'payment_method_preference' => 'IMMEDIATE_PAYMENT_REQUIRED',
-                            'shipping_preference' => $shipping_preference
-                        )
-                    ) 
-                )
-            ));
-        
-            return $payload;
-        }
-
-        return false;
-        
-    }
-
-    public function process_payment( $order_data ) {
-
-        $formipay_settings = get_option('formipay_settings');
-
-        if($order_data['payment_gateway'] == 'paypal') {
-    
-            $paypal_client_id = $formipay_settings['paypal_client_id'];
-            $paypal_secret = $formipay_settings['paypal_secret'];
-            
-            // Set your authentication header
-            $auth = base64_encode($paypal_client_id . ':' . $paypal_secret);
-
-            // Define arguments for wp_remote_post
-            $args = array(
-                'headers'     => array(
-                    'Content-Type' => 'application/json',
-                    'Authorization' => 'Basic ' . $auth,
-                ),
-                'method'      => 'POST',
-                'data_format' => 'body'
-            );
-        
-            $url = 'https://api-m.sandbox.paypal.com/v2'; 
-            if(isset($formipay_settings[$this->gateway.'_environment']) && $formipay_settings[$this->gateway.'_environment'] == 'production') {
-                $url = 'https://api-m.paypal.com/v2';
-            }
-
-            $payload = $this->prepare_payload($order_data);
-            // error_log('paypal payload:'.print_r($payload, true));
-            $args['body'] = $payload;
-            $url = $url.'/checkout/orders';
-
-            $response = wp_remote_retrieve_body( wp_remote_post($url, $args) );
-            $response = json_decode($response);
-            // error_log('paypal response:'.print_r($response, true));
-
-            $payer_action_link = null;
-
-            foreach ($response->links as $link) {
-                if ($link->rel === 'payer-action') {
-                    $payer_action_link = $link->href;
-                    break;
-                }
-            }
-
-            if($payer_action_link !== null){
-                $order_data['payment_callback'] = $response;
-                $order_data['redirect_url'] = $payer_action_link;
-            }
-
-        }
-        
-        return $order_data;
-
-    }
-
-    public function cancel_payment( $order_data ) {
-
-        $formipay_settings = get_option('formipay_settings');
-
-        if($order_data['payment_gateway'] == 'paypal') {
-
-            $paypal_client_id = $formipay_settings['paypal_client_id'];
-            $paypal_secret = $formipay_settings['paypal_secret'];
-            
-            // Set your authentication header
-            $auth = base64_encode($paypal_client_id . ':' . $paypal_secret);
-
-            // Define arguments for wp_remote_post
-            $args = array(
-                'headers'     => array(
-                    'Content-Type' => 'application/json',
-                    'Authorization' => 'Basic ' . $auth,
-                ),
-                'method'      => 'POST',
-                'data_format' => 'body'
-            );
-        
-            $url = 'https://api-m.sandbox.paypal.com/v2'; 
-            if(isset($formipay_settings[$this->gateway.'_environment']) && $formipay_settings[$this->gateway.'_environment'] == 'production') {
-                $url = 'https://api-m.paypal.com/v2';
-            }
-
-            $payload = $this->prepare_payload($order_data);
-            // error_log('paypal payload:'.print_r($payload, true));
-            $args['body'] = $payload;
-            $url = $url.'/checkout/orders';
-
-            $response = wp_remote_retrieve_body( wp_remote_post($url, $args) );
-            $response = json_decode($response);
-            // error_log('paypal response:'.print_r($response, true));
-
-            $payer_action_link = null;
-
-            foreach ($response->links as $link) {
-                if ($link->rel === 'payer-action') {
-                    $payer_action_link = $link->href;
-                    break;
-                }
-            }
-
-            if($payer_action_link !== null){
-                $order_data['redirect_url'] = $payer_action_link;
-            }
-
-            do_action('formipay/notification/order', $order_data);
-
-        }
-
-    }
-
-    public function check_parse_query() {
-        if (is_admin()) {
-            return;
-        }
-    
-        global $wp_query;
-    
-        $formipay_settings = get_option('formipay_settings');
-    
-        // Validate query vars early
-        $query = $wp_query->query;
-        if (
-            is_array($query) &&
-            !empty($query['formipay-payment-confirm']) &&
-            filter_var($query['formipay-payment-confirm'], FILTER_VALIDATE_BOOLEAN) &&
-            !empty($query['gateway']) &&
-            $query['gateway'] === 'paypal'
-        ) {
-            // Sanitize and validate token
-            $token_raw = isset($query['formipay-token']) ? $query['formipay-token'] : '';
-            $token_decoded = base64_decode($token_raw, true);
-            if (!$token_decoded) {
-                return;
-            }
-            $token = explode(':::', $token_decoded);
-            if (count($token) < 2) {
-                return;
-            }
-            $form_id = absint($token[0]);
-            $order_id = absint($token[1]);
-            if (!$form_id || !$order_id) {
-                return;
-            }
-    
-            $check_order = $this->get_transaction($order_id);
-    
-            // Check PayPal status and process payment
-            if (!empty($check_order) && 
-                // phpcs:ignore WordPress.Security.NonceVerification.Recommended
-                isset($_GET['paypal-status']) && sanitize_text_field(wp_unslash($_GET['paypal-status'])) === 'success' &&
-                strtoupper($check_order->status) === 'PENDING'
-            ) {
-                $paypal_client_id = isset($formipay_settings['paypal_client_id']) ? $formipay_settings['paypal_client_id'] : '';
-                $paypal_secret = isset($formipay_settings['paypal_secret']) ? $formipay_settings['paypal_secret'] : '';
-                $environment = isset($formipay_settings[$this->gateway . '_environment']) ? $formipay_settings[$this->gateway . '_environment'] : 'sandbox';
-    
-                if ($paypal_client_id && $paypal_secret) {
-                    $auth = base64_encode($paypal_client_id . ':' . $paypal_secret);
-                    // phpcs:ignore WordPress.Security.NonceVerification.Recommended
-                    $paypal_order_id = isset($_GET['token']) ? sanitize_text_field(wp_unslash($_GET['token'])) : '';
-    
-                    $base_url = ($environment === 'production')
-                        ? 'https://api-m.paypal.com/v2'
-                        : 'https://api-m.sandbox.paypal.com/v2';
-    
-                    $url = $base_url . '/checkout/orders/' . $paypal_order_id . '/capture';
-    
-                    $args = [
-                        'headers' => [
-                            'Content-Type' => 'application/json',
-                            'Authorization' => 'Basic ' . $auth,
-                        ],
-                        'method' => 'POST',
-                        'data_format' => 'body',
-                        'timeout' => 20,
-                    ];
-    
-                    $response = wp_remote_post($url, $args);
-                    $body = is_wp_error($response) ? null : wp_remote_retrieve_body($response);
-                    $response_data = json_decode($body, true);
-    
-                    if (isset($response_data['status']) && $response_data['status'] === 'COMPLETED') {
-                        $update_order_status = formipay_update_order_status([
-                            'form_id' => $form_id,
-                            'order_id' => $order_id,
-                            'payment_gateway' => $this->gateway,
-                            'status' => 'completed'
-                        ]);
-                        if (!empty($update_order_status['valid'])) {
-                            $capture_details = $response_data['purchase_units'][0]['payments']['captures'][0] ?? [];
-                            $this->update_transaction($order_id, $response_data['status'], $capture_details);
-                        }
-                    }
-                }
-            }
-    
-            // Determine redirect action
-            $action_type = formipay_get_post_meta($form_id, 'submit_action_type');
-            $params = isset($_SERVER['QUERY_STRING']) ? sanitize_text_field(wp_unslash($_SERVER['QUERY_STRING'])) : '';
-    
-            if ($action_type === 'thankyou') {
-                $thankyou_slug = !empty($formipay_settings['thankyou_link'])
-                    ? sanitize_title($formipay_settings['thankyou_link'])
-                    : 'thankyou';
-                wp_safe_redirect(site_url('/' . $thankyou_slug . '/' . $token_raw . '?' . $params));
-                exit;
-            } elseif ($action_type === 'redirect') {
-                $url = formipay_get_post_meta($form_id, 'redirect_url');
-                $url = esc_url_raw($url);
-                if (strpos($url, '?') !== false) {
-                    wp_safe_redirect($url . '&' . $params);
-                } else {
-                    wp_safe_redirect($url . '?' . $params);
-                }
-                exit;
-            } elseif ($action_type === 'whatsapp') {
-                $order = formipay_get_order($order_id);
-                $order_data = [];
-                if (is_array($order)) {
-                    foreach ($order as $key => $data) {
-                        $order_data[$key] = maybe_unserialize($data);
-                    }
-                }
-                $admin_number = formipay_get_post_meta($form_id, 'whatsapp_admin');
-                $shortcodes = [
-                    '{{product_name}}'    => get_the_title($form_id),
-                    '{{order_id}}'        => $order_id,
-                    '{{order_date}}'      => $order['created_date'] ?? '',
-                    '{{order_total}}'     => $order['total'] ?? '',
-                    '{{order_status}}'    => $order['status'] ?? '',
-                    '{{order_details}}'   => $this->render_order_details($form_id, $order_id, maybe_unserialize($order['items'] ?? '')),
-                    '{{payment_details}}' => $this->render_payment_details('', $form_id, $order_data, 'whatsapp'),
-                ];
-                $message_template = wp_kses_post(formipay_get_post_meta($form_id, 'whatsapp_message'));
-                $message = strtr($message_template, $shortcodes);
-                $message = str_replace('%250A', '%0A', rawurlencode($message));
-                $whatsapp_url = 'https://api.whatsapp.com/send/?phone=' . urlencode($admin_number) . '&text=' . $message;
-                wp_safe_redirect($whatsapp_url);
-                exit;
-            }
-        }
-    }
-    
-    public function render_order_details($form_id, $order_id, $items) {
-
-        $order = formipay_get_order($order_id);
-
-        $target_length = 40;
-        $message_format = formipay_get_post_meta($form_id, 'whatsapp_message');
-        $order_details_message = '```';
-        if(!empty($items)){
-            foreach($items as $detail){
-                $qty = '';
-                if(isset($detail['qty']) && !empty($detail['qty'])){
-                    $qty = $detail['qty'].'×';
-                }
-                $subtotal = formipay_price_format($detail['subtotal'], $form_id);
-                $qty_length = strlen($qty);
-                $subtotal_length = strlen($subtotal);
-                if(floatval($detail['subtotal']) < 0){
-                    $subtotal_length = $subtotal_length + 1;
-                }
-                $dot_length = $target_length - ($qty_length + $subtotal_length);
-                $dots = str_repeat('.', intval($dot_length));
-                $order_details_message .= '%0A'.$detail['item'];
-                $order_details_message .= '%0A'.$qty.$dots.$subtotal;
-            }
-            $total = formipay_price_format($order['total'], $form_id);
-            $total_length = strlen($total);
-            $dot_length = $target_length - ($total_length + 6);
-            $dots = str_repeat('.', intval($dot_length));
-            $divider = str_repeat('_', intval($target_length));
-            $order_details_message .= '%0A'.$divider;
-            $order_details_message .= '%0A'.'';
-            $order_details_message .= '%0A'.'Total'.$dots.$total;
-        }
-        $order_details_message .= '%0A```';
-
-        $content = $order_details_message;
-
-        return $content;
-
-    }
-
-    public function render_payment_details($render, $form_id, $order_data, $submit_action_type) {
-
-        if($order_data['status'] == 'completed'){
-            return $render;
-        }
-
-        $formipay_settings = get_option('formipay_settings');
-
-        $get_trx = $this->get_transaction($order_data['id']);
-        if(!empty($get_trx)){
-            $meta = maybe_unserialize($get_trx->meta_data);
-            if(isset($meta['payer_action_url']) && !empty($meta['payer_action_url'])){
-
-                if($formipay_settings[$this->gateway.'_toggle'] !== false){
-                    if($submit_action_type == 'thankyou'){
-        
-                        ob_start();
-                        ?>
-                        <a id="upload-transfer-receipt" class="formipay-submit-button" href="<?php echo esc_url($meta['payer_action_url']) ?>">
-                            <i class="bi bi-paypal"></i> <?php echo esc_html__( 'Pay Now', 'formipay' ); ?>
-                        </a>
-                        <?php
-                        $render = ob_get_contents();
-                        ob_get_clean();
-        
-                    }elseif($submit_action_type == 'whatsapp'){
-        
-                        $slug = 'thankyou';
-                        if(!empty($formipay_settings['thankyou_link'])){
-                            $slug = $formipay_settings['thankyou_link'];
-                        }
-        
-                        // translators: %s is the Paypal payment URL.
-                        $message = sprintf( __('> Payment Link: *%s*', 'formipay'), $meta['payer_action_url'] );
-        
-                        $render = $message;
-        
-                    }
-                }
-            }
-        }
-
-        return $render;
-
-    }
-
-    public function render_email_action_button($button, $recipient, $order_data){
-
-        if(
-            $order_data['payment_gateway'] == $this->gateway && 
-            $order_data['status'] == 'on-hold' &&
-            $recipient !== 'admin'
-        ){
-
-            $formipay_settings = get_option('formipay_settings');
-            $get_trx = $this->get_transaction($order_data['id']);
-            if(!empty($get_trx)){
-                $meta = maybe_unserialize($get_trx->meta_data);
-                if(isset($meta['payer_action_url']) && !empty($meta['payer_action_url'])){
-        
-                    $button = [
-                        'url' => $meta['payer_action_url'],
-                        'label' => __( 'Pay Now', 'formipay' )
-                    ];
-
-                }
-            }
-
-        }
-
-        return $button;
-
-    }
-
-}
\ No newline at end of file
diff --git a/includes/License.php b/includes/License.php
index c1f8fb476..058445e0a 100644
--- a/includes/License.php
+++ b/includes/License.php
@@ -123,6 +123,10 @@ class License {
     public function tabledata() {
         check_ajax_referer('formipay-admin-licenses', '_wpnonce');
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         global $wpdb;
         $table = $wpdb->prefix . 'formipay_licenses';
 
@@ -200,6 +204,10 @@ class License {
     public function delete() {
         check_ajax_referer('formipay-admin-licenses', '_wpnonce');
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if (empty($_REQUEST['id'])) {
             wp_send_json_error([
                 'title' => esc_html__('Failed', 'formipay'),
@@ -232,6 +240,10 @@ class License {
     public function bulk_delete() {
         check_ajax_referer('formipay-admin-licenses', '_wpnonce');
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $ids = isset($_REQUEST['ids']) ? (array) $_REQUEST['ids'] : [];
         if (empty($ids)) {
             wp_send_json_error([
diff --git a/includes/Order.php b/includes/Order.php
index d6ccd74f7..b07001119 100644
--- a/includes/Order.php
+++ b/includes/Order.php
@@ -148,7 +148,7 @@ class Order {
     
             $unique_id = isset($order_meta_data['session_id']) ? sanitize_text_field($order_meta_data['session_id']) : '';
             $thankyou_url = site_url('/' . $thankyou_link . '/' . base64_encode($form_id . ':::' . $order_data['id'] . ':::' . $unique_id));
-            setcookie('fp_access', maybe_serialize([$order_data['id'] => $unique_id]), time() + 86400, '/');
+            setcookie('fp_access', wp_json_encode([$order_data['id'] => $unique_id]), time() + 86400, '/', '', is_ssl(), true);
     
             if (
                 !empty($this->order_data['redirect_url']) &&
@@ -768,6 +768,10 @@ class Order {
 
         check_ajax_referer( 'formipay-order-details', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $type = isset($_REQUEST['type']) ? sanitize_text_field( wp_unslash($_REQUEST['type']) ) : '';
         $search = isset($_REQUEST['search']) ? sanitize_text_field( wp_unslash($_REQUEST['search']) ) : '';
 
@@ -932,26 +936,33 @@ class Order {
 
         check_ajax_referer( 'formipay-order-details', '_wpnonce' );
 
-        $all_orders = $this->get();
-    
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
+        global $wpdb;
+        $table = $wpdb->prefix . 'formipay_orders';
+
+        // Count order statuses efficiently
+        // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+        $status_counts = $wpdb->get_results("SELECT `status`, COUNT(*) as cnt FROM {$table} GROUP BY `status`", ARRAY_A);
+
         $order_status = [
             'all' => 0,
             'completed' => 0,
             'on-hold' => 0,
             'payment-confirm' => 0
         ];
-    
-        // Count order statuses
-        if (!empty($all_orders)) {
-            foreach ($all_orders as $order) {
-                $order_status['all']++;
-                $order_status[$order->status]++;
+
+        if (!empty($status_counts)) {
+            foreach ($status_counts as $row) {
+                $order_status['all'] += (int) $row['cnt'];
+                if (isset($order_status[$row['status']])) {
+                    $order_status[$row['status']] = (int) $row['cnt'];
+                }
             }
         }
     
-        global $wpdb;
-        $table = $wpdb->prefix . 'formipay_orders';
-    
         $where = [];
         $params = [];
 
@@ -1028,6 +1039,10 @@ class Order {
 
         check_ajax_referer( 'formipay-order-details', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $order_id = isset($_REQUEST['id']) ? intval($_REQUEST['id']) : 0;
 
         $delete = $this->delete($order_id);
@@ -1052,6 +1067,10 @@ class Order {
 
         check_ajax_referer( 'formipay-order-details', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if( empty($_REQUEST['ids']) ){
             wp_send_json_error( [
                 'title' => esc_html__( 'Failed', 'formipay' ),
@@ -1095,6 +1114,10 @@ class Order {
 
         check_ajax_referer( 'formipay-order-details', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $order_id = isset($_REQUEST['order']) ? intval($_REQUEST['order']) : 0;
 
         wp_send_json(formipay_get_order($order_id));
@@ -1104,6 +1127,10 @@ class Order {
     public function formipay_change_order_status() {
 
         check_ajax_referer( 'formipay-order-details', '_wpnonce' );
+
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
         
         $order_id = isset($_REQUEST['id']) ? intval($_REQUEST['id']) : 0;
         $status = isset($_REQUEST['status']) ? sanitize_text_field( wp_unslash($_REQUEST['status']) ) : '';
@@ -1139,6 +1166,10 @@ class Order {
 
         check_ajax_referer( 'formipay-order-details', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $editable_field = [];
 
         $order_id = isset($_REQUEST['order_id']) ? intval($_REQUEST['order_id']) : 0;
@@ -1183,6 +1214,10 @@ class Order {
 
         check_ajax_referer( 'formipay-order-details', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $order_id = isset($_REQUEST['order_id']) ? intval($_REQUEST['order_id']) : 0;
         // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
         $raw_data = isset($_REQUEST['new_values']) ? wp_unslash( $_REQUEST['new_values'] ) : [];
@@ -1234,6 +1269,10 @@ class Order {
 
         check_ajax_referer( 'formipay-order-details', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $order_id = isset($_REQUEST['order_id']) ? intval($_REQUEST['order_id']) : 0;
         $method = isset($_REQUEST['method']) ? sanitize_text_field( wp_unslash($_REQUEST['method']) ) : '';
         $password = isset($_REQUEST['password']) ? sanitize_text_field( wp_unslash($_REQUEST['password']) ) : '';
diff --git a/includes/Payment/Payment.php b/includes/Payment/Payment.php
index b022e389d..3c899827a 100644
--- a/includes/Payment/Payment.php
+++ b/includes/Payment/Payment.php
@@ -220,7 +220,6 @@ abstract class Payment {
             'top'
         );
 
-        flush_rewrite_rules();
         
     }
 
diff --git a/includes/Product.php b/includes/Product.php
index c63c46ca4..d34bf3697 100644
--- a/includes/Product.php
+++ b/includes/Product.php
@@ -591,6 +591,10 @@ class Product {
 
         check_ajax_referer( 'formipay-admin-product-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         global $wpdb;
 
         // Initialize default args
@@ -707,6 +711,10 @@ class Product {
 
         check_ajax_referer( 'formipay-admin-product-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $title = isset($_REQUEST['title']) ? sanitize_text_field( wp_unslash($_REQUEST['title']) ) : '';
 
         if( !empty($title) && '' !== $title ){
@@ -738,6 +746,10 @@ class Product {
 
         check_ajax_referer( 'formipay-admin-product-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $search = isset($_REQUEST['search']) ? sanitize_text_field( wp_unslash($_REQUEST['search']) ) : '';
 
         $countries = formipay_currency_array();
@@ -762,6 +774,10 @@ class Product {
 
         check_ajax_referer( 'formipay-admin-product-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $form_id = isset($_REQUEST['id']) ? intval($_REQUEST['id']) : '';
 
         $delete = wp_delete_post($form_id, true);
@@ -786,6 +802,10 @@ class Product {
 
         check_ajax_referer( 'formipay-admin-product-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         if( empty($_REQUEST['ids']) ){
             wp_send_json_error( [
                 'title' => esc_html__( 'Failed', 'formipay' ),
@@ -828,6 +848,10 @@ class Product {
 
         check_ajax_referer( 'formipay-admin-product-page', '_wpnonce' );
 
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( [ 'message' => 'Unauthorized' ] );
+        }
+
         $post_id = isset($_REQUEST['id']) ? intval($_REQUEST['id']) : '';
         $post = get_post($post_id);
         if (!$post) {
diff --git a/includes/Render.php b/includes/Render.php
index 21b767fca..bb7448ac7 100644
--- a/includes/Render.php
+++ b/includes/Render.php
@@ -68,7 +68,7 @@ class Render {
         }
         ob_start();
 
-        $timezone = get_option('timezone_string', 'Asia/Jakarta');
+        $timezone = wp_timezone_string();
 
         $require_login = formipay_get_post_meta($post_id, 'require_login') === 'on';
         $scheduled = formipay_get_post_meta($post_id, 'schedule_toggle') === 'on';
diff --git a/includes/Thankyou.php b/includes/Thankyou.php
index 3eff21148..00e70a3fa 100644
--- a/includes/Thankyou.php
+++ b/includes/Thankyou.php
@@ -41,7 +41,6 @@ class Thankyou {
             'top'
         );
 
-        flush_rewrite_rules();
         
     }
 
@@ -425,7 +424,7 @@ class Thankyou {
 
         $cookie = $this->get_cookie();
         $cookie[$order_id] = $order_meta_data['session_id'];
-        setcookie( 'fp_access', maybe_serialize($cookie), time() + 86400, '/' );
+        setcookie( 'fp_access', wp_json_encode($cookie), time() + 86400, '/', '', is_ssl(), true );
 
         if($method == 'magic_link'){
             do_action('formipay/notification/access/email', $order);
@@ -678,15 +677,11 @@ class Thankyou {
         if (!empty($_COOKIE['fp_access'])) {
             // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
             $raw_value = wp_unslash($_COOKIE['fp_access']);
-            
-            // Validate before unserializing
-            if (is_serialized($raw_value)) {  // Use WordPress core function
-                $maybe = maybe_unserialize($raw_value);
-                
-                // Type-check and sanitize array contents
-                if (is_array($maybe)) {
-                    $cookie = array_map('sanitize_text_field', $maybe);
-                }
+
+            $decoded = json_decode($raw_value, true);
+
+            if (is_array($decoded)) {
+                $cookie = array_map('sanitize_text_field', $decoded);
             }
         }
         return $cookie;
diff --git a/uninstall.php b/uninstall.php
new file mode 100644
index 000000000..d6d505951
--- /dev/null
+++ b/uninstall.php
@@ -0,0 +1,62 @@
+<?php
+/**
+ * Formipay Uninstall
+ *
+ * Removes all plugin data when the plugin is uninstalled via WordPress admin.
+ */
+
+if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
+    exit;
+}
+
+global $wpdb;
+
+// Drop custom tables
+$tables = [
+    'formipay_orders',
+    'formipay_customers',
+    'formipay_bank_transfer_trx',
+    'formipay_paypal_trx',
+    'formipay_notification_log',
+    'formipay_tokens',
+];
+
+foreach ( $tables as $table_suffix ) {
+    // phpcs:ignore WordPress.DB.DirectDatabaseQuery.SchemaChange, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+    $wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}{$table_suffix}" );
+}
+
+// Remove plugin options
+delete_option( 'formipay_settings' );
+
+// Clear scheduled cron events
+$crons = _get_cron_array();
+if ( ! empty( $crons ) ) {
+    foreach ( $crons as $timestamp => $cron ) {
+        if ( is_array( $cron ) ) {
+            foreach ( $cron as $hook => $events ) {
+                if ( strpos( $hook, 'formipay/' ) === 0 ) {
+                    foreach ( $events as $key => $event ) {
+                        wp_unschedule_event( $timestamp, $hook, $event['args'] ?? [] );
+                    }
+                }
+            }
+        }
+    }
+}
+
+// Remove custom post types and their meta
+$post_types = [ 'formipay-form', 'formipay-product', 'formipay-coupon', 'formipay-access', 'formipay-license' ];
+foreach ( $post_types as $post_type ) {
+    $posts = get_posts( [
+        'post_type'   => $post_type,
+        'numberposts' => -1,
+        'post_status' => 'any',
+    ] );
+    foreach ( $posts as $post ) {
+        wp_delete_post( $post->ID, true );
+    }
+}
+
+// Clear any cached data
+wp_cache_flush();