AjaxRequest.php
9 months ago
LogWriter.php
10 months ago
OptionStatus.php
10 months ago
Singleton.php
1 year ago
index.php
1 year ago
AjaxRequest.php
206 lines
| 1 | <?php |
| 2 | |
| 3 | namespace CommerceBird\Admin\Traits; |
| 4 | |
| 5 | use CommerceBird\Admin\Template; |
| 6 | |
| 7 | if ( ! defined( 'ABSPATH' ) ) { |
| 8 | exit; |
| 9 | } |
| 10 | |
| 11 | trait AjaxRequest { |
| 12 | |
| 13 | // Array to store registered AJAX requests. |
| 14 | private array $request = array(); |
| 15 | // Array to store registered AJAX response. |
| 16 | private array $response = array( 'message' => 'Saved' ); |
| 17 | // Array to store registered AJAX posted data. |
| 18 | private array $data = array(); |
| 19 | // Array to store registered AJAX errors. |
| 20 | private array $errors = array(); |
| 21 | |
| 22 | private function load_actions() { |
| 23 | foreach ( self::ACTIONS as $action => $handler ) { |
| 24 | add_action( |
| 25 | $this->action( $action ), |
| 26 | array( $this, $handler ), |
| 27 | ); |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Serve data to AJAX request. |
| 33 | */ |
| 34 | private function serve(): void { |
| 35 | if ( count( $this->errors ) > 0 ) { |
| 36 | wp_send_json_error( $this->errors ); |
| 37 | } |
| 38 | |
| 39 | wp_send_json_success( $this->response ); |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * Verify AJAX request with enhanced security. |
| 44 | * |
| 45 | * @param array $keys The keys to verify (optional). |
| 46 | */ |
| 47 | private function verify( array $keys = array() ): void { |
| 48 | // Early exit: these Ajax handlers should never be called by logged-out users. |
| 49 | // WordPress wp_ajax_ actions are only for logged-in users, so this shouldn't happen. |
| 50 | if ( ! is_user_logged_in() ) { |
| 51 | // If we reach here, something is wrong with the action registration. |
| 52 | // Just exit silently to prevent frontend errors. |
| 53 | wp_die( '', '', array( 'response' => 200 ) ); |
| 54 | } |
| 55 | |
| 56 | // Check if the request is coming from the admin area (for logged-in users). |
| 57 | $referer = wp_get_referer(); |
| 58 | if ( ! $referer || strpos( $referer, admin_url() ) !== 0 ) { |
| 59 | $this->errors = array( 'message' => 'Invalid request origin' ); |
| 60 | $this->serve(); |
| 61 | return; |
| 62 | } |
| 63 | |
| 64 | // Enhanced CSRF protection with proper nonce verification. |
| 65 | $security_token = $_REQUEST['security_token'] ?? $_GET['security_token'] ?? ''; |
| 66 | $nonce_action = Template::NAME; |
| 67 | |
| 68 | if ( ! wp_verify_nonce( $security_token, $nonce_action ) ) { |
| 69 | $this->errors = array( 'message' => 'Security check failed' ); |
| 70 | $this->serve(); |
| 71 | return; |
| 72 | } |
| 73 | |
| 74 | // Rate limiting check. |
| 75 | if ( ! $this->check_rate_limit() ) { |
| 76 | $this->errors = array( 'message' => 'Too many requests' ); |
| 77 | $this->serve(); |
| 78 | return; |
| 79 | } |
| 80 | |
| 81 | // Capability check - ensure user has proper permissions (same as menu page). |
| 82 | if ( ! current_user_can( 'manage_woocommerce' ) ) { |
| 83 | $this->errors = array( 'message' => 'Insufficient permissions' ); |
| 84 | $this->serve(); |
| 85 | return; |
| 86 | } |
| 87 | |
| 88 | // Initialize response and errors. |
| 89 | $this->response = array( 'success' => true ); |
| 90 | $this->errors = array(); |
| 91 | $this->request = array_map( 'sanitize_text_field', wp_unslash( $_REQUEST ) ); |
| 92 | |
| 93 | // Attempt to retrieve JSON if POST is empty. |
| 94 | if ( empty( $_POST ) ) { |
| 95 | $contents = trim( file_get_contents( 'php://input' ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended. |
| 96 | |
| 97 | if ( $this->is_json( $contents ) ) { |
| 98 | $json_data = json_decode( $contents, true ); |
| 99 | |
| 100 | if ( ! empty( $json_data ) ) { |
| 101 | // Deep sanitization of JSON data. |
| 102 | $this->data = empty( $keys ) ? $this->sanitize_deep( $json_data ) : $this->extract_data( $this->sanitize_deep( $json_data ), $keys ); |
| 103 | } |
| 104 | } |
| 105 | } else { |
| 106 | // Sanitize POST data. |
| 107 | $this->data = empty( $keys ) ? $this->sanitize_deep( $_POST ) : $this->extract_data( $this->sanitize_deep( $_POST ), $keys ); |
| 108 | } |
| 109 | |
| 110 | // Log security events for audit. |
| 111 | $this->log_security_event(); |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Utility to check if a string is JSON. |
| 116 | */ |
| 117 | private function is_json( string $string ): bool { |
| 118 | json_decode( $string ); |
| 119 | return json_last_error() === JSON_ERROR_NONE; |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Extracts data from an array using the given keys. |
| 124 | * |
| 125 | * @param array $sanitized The array from which to extract data. |
| 126 | * @param array $keys The keys to use for extraction. |
| 127 | * |
| 128 | * @return array The extracted data. |
| 129 | */ |
| 130 | public function extract_data( array $sanitized, array $keys ): array { |
| 131 | return array_intersect_key( $sanitized, array_flip( $keys ) ); |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * Register AJAX actions. |
| 136 | */ |
| 137 | private function action( $action ): string { |
| 138 | return sprintf( 'wp_ajax_%s-%s', Template::NAME, $action ); |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Check rate limiting to prevent abuse. |
| 143 | * |
| 144 | * @return bool |
| 145 | */ |
| 146 | private function check_rate_limit(): bool { |
| 147 | $user_id = get_current_user_id(); |
| 148 | $transient_key = 'ajax_rate_limit_' . $user_id . '_' . $_SERVER['REMOTE_ADDR']; |
| 149 | $requests = get_transient( $transient_key ); |
| 150 | |
| 151 | if ( false === $requests ) { |
| 152 | set_transient( $transient_key, 1, MINUTE_IN_SECONDS ); |
| 153 | return true; |
| 154 | } |
| 155 | |
| 156 | if ( $requests >= 30 ) { // 30 requests per minute (more reasonable for frontend). |
| 157 | return false; |
| 158 | } |
| 159 | |
| 160 | set_transient( $transient_key, $requests + 1, MINUTE_IN_SECONDS ); |
| 161 | return true; |
| 162 | } |
| 163 | |
| 164 | /** |
| 165 | * Deep sanitization of data arrays. |
| 166 | * |
| 167 | * @param mixed $data Data to sanitize. |
| 168 | * @return mixed Sanitized data. |
| 169 | */ |
| 170 | private function sanitize_deep( $data ) { |
| 171 | if ( is_array( $data ) ) { |
| 172 | return array_map( array( $this, 'sanitize_deep' ), $data ); |
| 173 | } |
| 174 | |
| 175 | if ( is_string( $data ) ) { |
| 176 | return sanitize_text_field( $data ); |
| 177 | } |
| 178 | |
| 179 | return $data; |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * Log security events for audit trail. |
| 184 | */ |
| 185 | private function log_security_event(): void { |
| 186 | $log_data = array( |
| 187 | 'timestamp' => current_time( 'mysql' ), |
| 188 | 'user_id' => get_current_user_id(), |
| 189 | 'ip_address' => $_SERVER['REMOTE_ADDR'], |
| 190 | 'action' => $_REQUEST['action'] ?? 'unknown', |
| 191 | 'user_agent' => $_SERVER['HTTP_USER_AGENT'] ?? 'unknown', |
| 192 | ); |
| 193 | |
| 194 | // Store in transient for security monitoring. |
| 195 | $security_log = get_transient( 'commercebird_security_log' ) ?: array(); |
| 196 | $security_log[] = $log_data; |
| 197 | |
| 198 | // Keep only last 100 entries. |
| 199 | if ( count( $security_log ) > 100 ) { |
| 200 | $security_log = array_slice( $security_log, -100 ); |
| 201 | } |
| 202 | |
| 203 | set_transient( 'commercebird_security_log', $security_log, DAY_IN_SECONDS ); |
| 204 | } |
| 205 | } |
| 206 |