| 1 |
<?php |
| 2 |
|
| 3 |
namespace NotificationX\Core\Rest; |
| 4 |
|
| 5 |
use NotificationX\Core\PostType; |
| 6 |
use NotificationX\Core\REST; |
| 7 |
use NotificationX\Extensions\ExtensionFactory; |
| 8 |
use NotificationX\Extensions\GlobalFields; |
| 9 |
use NotificationX\GetInstance; |
| 10 |
use NotificationX\NotificationX; |
| 11 |
use WP_REST_Controller; |
| 12 |
use WP_REST_Response; |
| 13 |
use WP_REST_Server; |
| 14 |
use WP_Error; |
| 15 |
|
| 16 |
/** |
| 17 |
* @method static Integration get_instance($args = null) |
| 18 |
*/ |
| 19 |
class Integration { |
| 20 |
/** |
| 21 |
* Instance of NotificationX |
| 22 |
* |
| 23 |
* @var NotificationX |
| 24 |
*/ |
| 25 |
use GetInstance; |
| 26 |
|
| 27 |
public $namespace; |
| 28 |
public $rest_base; |
| 29 |
|
| 30 |
/** |
| 31 |
* Grace window during which the legacy md5(home_url()) key is still accepted |
| 32 |
* after upgrade, so existing Zapier zaps keep firing while customers rotate. |
| 33 |
*/ |
| 34 |
const LEGACY_KEY_GRACE_DAYS = 14; |
| 35 |
|
| 36 |
const OPT_API_KEY = 'nx_integration_api_key'; |
| 37 |
const OPT_GRACE_STARTED_AT = 'nx_integration_api_key_grace_started_at'; |
| 38 |
const OPT_LEGACY_KEY_LAST_USED = 'nx_integration_legacy_key_last_used_at'; |
| 39 |
const OPT_SEEDED_VERSION = 'nx_integration_key_seeded_version'; |
| 40 |
|
| 41 |
/** |
| 42 |
* Constructor. |
| 43 |
* |
| 44 |
* @since 4.7.0 |
| 45 |
* |
| 46 |
* @param string $post_type Post type. |
| 47 |
*/ |
| 48 |
public function __construct() { |
| 49 |
$this->namespace = 'notificationx/v1'; |
| 50 |
$this->rest_base = 'notification'; |
| 51 |
add_action('rest_api_init', [$this, 'register_routes']); |
| 52 |
add_action('admin_notices', [$this, 'legacy_api_key_notice']); |
| 53 |
// Runs once per install/upgrade to seed the API key and, only when |
| 54 |
// needed, open the legacy-key grace window. Gated by a version marker |
| 55 |
// so it never retriggers on the same version. |
| 56 |
add_action('plugins_loaded', [__CLASS__, 'maybe_seed_from_upgrade'], 20); |
| 57 |
} |
| 58 |
|
| 59 |
/** |
| 60 |
* Registers the routes for the objects of the controller. |
| 61 |
* |
| 62 |
* @since 4.7.0 |
| 63 |
* |
| 64 |
* @see register_rest_route() |
| 65 |
*/ |
| 66 |
public function register_routes() { |
| 67 |
// Settings Integration |
| 68 |
register_rest_route( $this->namespace, '/api-connect', array( |
| 69 |
'methods' => WP_REST_Server::EDITABLE, |
| 70 |
'callback' => array( $this, 'api_connect' ), |
| 71 |
'permission_callback' => array($this, 'settings_permission'), |
| 72 |
)); |
| 73 |
|
| 74 |
// calls from integration provider. |
| 75 |
register_rest_route( |
| 76 |
$this->namespace, |
| 77 |
'/' . $this->rest_base . '/(?P<id>[\d]+)', |
| 78 |
array( |
| 79 |
array( |
| 80 |
'methods' => WP_REST_Server::READABLE, |
| 81 |
'callback' => array($this, 'get_response'), |
| 82 |
'permission_callback' => '__return_true', |
| 83 |
'args' => array( |
| 84 |
'id' => array( |
| 85 |
'required' => true, |
| 86 |
'description' => __('Unique identifier for the object.', 'notificationx'), |
| 87 |
'type' => 'integer', |
| 88 |
), |
| 89 |
'api_key' => array( |
| 90 |
'required' => true, |
| 91 |
'description' => __('Unique identifier for the site.', 'notificationx'), |
| 92 |
'type' => 'string', |
| 93 |
), |
| 94 |
), |
| 95 |
), |
| 96 |
array( |
| 97 |
'methods' => WP_REST_Server::CREATABLE, |
| 98 |
'callback' => array($this, 'save_response'), |
| 99 |
'permission_callback' => '__return_true', |
| 100 |
'args' => array( |
| 101 |
'id' => array( |
| 102 |
'required' => true, |
| 103 |
'description' => __('Unique identifier for the object.', 'notificationx'), |
| 104 |
'type' => 'integer', |
| 105 |
), |
| 106 |
'api_key' => array( |
| 107 |
'required' => true, |
| 108 |
'description' => __('Unique identifier for the site.', 'notificationx'), |
| 109 |
'type' => 'string', |
| 110 |
), |
| 111 |
), |
| 112 |
), |
| 113 |
) |
| 114 |
); |
| 115 |
// OLD Fallback for Zapier |
| 116 |
register_rest_route( |
| 117 |
"notificationx", |
| 118 |
'/' . $this->rest_base . '/(?P<id>[\d]+)', |
| 119 |
array( |
| 120 |
array( |
| 121 |
'methods' => WP_REST_Server::READABLE, |
| 122 |
'callback' => array($this, 'get_response'), |
| 123 |
'permission_callback' => '__return_true', |
| 124 |
'args' => array( |
| 125 |
'id' => array( |
| 126 |
'required' => true, |
| 127 |
'description' => __('Unique identifier for the object.', 'notificationx'), |
| 128 |
'type' => 'integer', |
| 129 |
), |
| 130 |
'api_key' => array( |
| 131 |
'required' => true, |
| 132 |
'description' => __('Unique identifier for the site.', 'notificationx'), |
| 133 |
'type' => 'string', |
| 134 |
), |
| 135 |
), |
| 136 |
), |
| 137 |
array( |
| 138 |
'methods' => WP_REST_Server::CREATABLE, |
| 139 |
'callback' => array($this, 'save_response'), |
| 140 |
'permission_callback' => '__return_true', |
| 141 |
'args' => array( |
| 142 |
'id' => array( |
| 143 |
'required' => true, |
| 144 |
'description' => __('Unique identifier for the object.', 'notificationx'), |
| 145 |
'type' => 'integer', |
| 146 |
), |
| 147 |
'api_key' => array( |
| 148 |
'required' => true, |
| 149 |
'description' => __('Unique identifier for the site.', 'notificationx'), |
| 150 |
'type' => 'string', |
| 151 |
), |
| 152 |
), |
| 153 |
), |
| 154 |
) |
| 155 |
); |
| 156 |
} |
| 157 |
|
| 158 |
/** |
| 159 |
* Returns the site's integration API key, generating and persisting one if it doesn't exist yet. |
| 160 |
* Key generation has no side effects on the legacy-key grace window — that is opened only by |
| 161 |
* {@see self::maybe_seed_from_upgrade()} at plugin bootstrap, so an unauthenticated attacker |
| 162 |
* probing the endpoint can never lazy-open a grace window. |
| 163 |
*/ |
| 164 |
public static function get_api_key() { |
| 165 |
$key = get_option( self::OPT_API_KEY ); |
| 166 |
if ( empty( $key ) ) { |
| 167 |
$key = wp_generate_password( 32, false ); |
| 168 |
update_option( self::OPT_API_KEY, $key, false ); |
| 169 |
} |
| 170 |
return $key; |
| 171 |
} |
| 172 |
|
| 173 |
/** |
| 174 |
* Runs once per plugin version at bootstrap. Ensures the API key exists and opens the |
| 175 |
* legacy-key grace window ONLY when the site actually had legacy integrations configured |
| 176 |
* before the upgrade — never on a fresh install and never on customer sites that never |
| 177 |
* used Zapier/IFTTT. Gated by a version marker so it does not retrigger. |
| 178 |
*/ |
| 179 |
public static function maybe_seed_from_upgrade() { |
| 180 |
$seeded = get_option( self::OPT_SEEDED_VERSION ); |
| 181 |
if ( $seeded === NOTIFICATIONX_VERSION ) { |
| 182 |
return; |
| 183 |
} |
| 184 |
update_option( self::OPT_SEEDED_VERSION, NOTIFICATIONX_VERSION, false ); |
| 185 |
|
| 186 |
// Ensure the new key exists (idempotent — no grace side effect). |
| 187 |
self::get_api_key(); |
| 188 |
|
| 189 |
// Open the grace window only for sites that had legacy integrations. |
| 190 |
if ( ! get_option( self::OPT_GRACE_STARTED_AT ) && self::has_legacy_integrations() ) { |
| 191 |
update_option( self::OPT_GRACE_STARTED_AT, time(), false ); |
| 192 |
} |
| 193 |
} |
| 194 |
|
| 195 |
/** |
| 196 |
* Detects whether the site has (or had) legacy Zapier/IFTTT integrations that would have |
| 197 |
* been configured with the legacy md5(home_url()) key. Used to decide whether the upgrade |
| 198 |
* seeder should open a grace window. |
| 199 |
*/ |
| 200 |
protected static function has_legacy_integrations(): bool { |
| 201 |
global $wpdb; |
| 202 |
$table = $wpdb->prefix . 'nx_posts'; |
| 203 |
$count = $wpdb->get_var( |
| 204 |
"SELECT COUNT(*) FROM {$table} |
| 205 |
WHERE source LIKE 'zapier%%' |
| 206 |
OR source LIKE 'ifttt%%'" |
| 207 |
); |
| 208 |
return (int) $count > 0; |
| 209 |
} |
| 210 |
|
| 211 |
/** |
| 212 |
* Unix timestamp at which the legacy md5(home_url()) key stops being accepted. |
| 213 |
*/ |
| 214 |
public static function legacy_key_grace_ends_at(): int { |
| 215 |
$started = (int) get_option( self::OPT_GRACE_STARTED_AT ); |
| 216 |
if ( ! $started ) { |
| 217 |
return 0; |
| 218 |
} |
| 219 |
return $started + ( self::LEGACY_KEY_GRACE_DAYS * DAY_IN_SECONDS ); |
| 220 |
} |
| 221 |
|
| 222 |
/** |
| 223 |
* Validates an incoming API key. |
| 224 |
* The new random key is always accepted. The legacy md5(home_url()) key is accepted only |
| 225 |
* during the post-upgrade grace window; we record every accepted legacy use so the admin |
| 226 |
* notice can prompt the customer to rotate. After the grace window closes, the legacy key |
| 227 |
* is rejected. Wrong keys never write to the DB — so a probing attacker can never open a |
| 228 |
* grace window or flip the admin notice on. |
| 229 |
*/ |
| 230 |
public static function is_valid_api_key( string $api_key ): bool { |
| 231 |
$stored = (string) get_option( self::OPT_API_KEY ); |
| 232 |
if ( $stored !== '' && hash_equals( $stored, $api_key ) ) { |
| 233 |
return true; |
| 234 |
} |
| 235 |
$is_legacy = hash_equals( md5( home_url( '', 'http' ) ), $api_key ) |
| 236 |
|| hash_equals( md5( home_url( '', 'https' ) ), $api_key ); |
| 237 |
if ( ! $is_legacy ) { |
| 238 |
return false; |
| 239 |
} |
| 240 |
$grace_ends_at = self::legacy_key_grace_ends_at(); |
| 241 |
if ( $grace_ends_at === 0 || time() >= $grace_ends_at ) { |
| 242 |
return false; |
| 243 |
} |
| 244 |
update_option( self::OPT_LEGACY_KEY_LAST_USED, time(), false ); |
| 245 |
return true; |
| 246 |
} |
| 247 |
|
| 248 |
/** |
| 249 |
* Persistent dashboard notice — surfaced whenever the legacy key has been used recently |
| 250 |
* so the customer can rotate before (or after) the grace window closes. |
| 251 |
*/ |
| 252 |
public function legacy_api_key_notice() { |
| 253 |
if ( ! current_user_can( 'edit_notificationx_settings' ) ) { |
| 254 |
return; |
| 255 |
} |
| 256 |
$last_used = (int) get_option( self::OPT_LEGACY_KEY_LAST_USED ); |
| 257 |
if ( ! $last_used ) { |
| 258 |
return; |
| 259 |
} |
| 260 |
$grace_ends_at = self::legacy_key_grace_ends_at(); |
| 261 |
$settings_url = admin_url( 'admin.php?page=nx-settings' ); |
| 262 |
if ( $grace_ends_at > 0 && time() < $grace_ends_at ) { |
| 263 |
$deadline = wp_date( get_option( 'date_format' ), $grace_ends_at ); |
| 264 |
$message = sprintf( |
| 265 |
/* translators: %s: rotation deadline date. */ |
| 266 |
__( 'A Zapier (or other webhook) integration is still calling NotificationX with the legacy API key. Rotate it to the new key before %s — after that, requests using the old key will be rejected.', 'notificationx' ), |
| 267 |
'<strong>' . esc_html( $deadline ) . '</strong>' |
| 268 |
); |
| 269 |
$class = 'notice notice-warning'; |
| 270 |
} else { |
| 271 |
$message = __( 'A Zapier (or other webhook) integration is still calling NotificationX with the legacy API key. Those calls are now being rejected — update the integration with the new key to restore it.', 'notificationx' ); |
| 272 |
$class = 'notice notice-error'; |
| 273 |
} |
| 274 |
printf( |
| 275 |
'<div class="%1$s"><p>%2$s <a href="%3$s">%4$s</a></p></div>', |
| 276 |
esc_attr( $class ), |
| 277 |
wp_kses_post( $message ), |
| 278 |
esc_url( $settings_url ), |
| 279 |
esc_html__( 'Get the new key', 'notificationx' ) |
| 280 |
); |
| 281 |
} |
| 282 |
|
| 283 |
public function get_response( \WP_REST_Request $request ){ |
| 284 |
$id = $request['id']; |
| 285 |
$api_key = $request['api_key']; |
| 286 |
$error = []; |
| 287 |
|
| 288 |
if( self::is_valid_api_key( (string) $api_key ) ) { |
| 289 |
$notificationx = PostType::get_instance()->get_post( $id ); |
| 290 |
if( $notificationx ) { |
| 291 |
return wp_send_json( true ); |
| 292 |
} |
| 293 |
$error['message'] = sprintf( __( 'There is no notification created with this id: %s', 'notificationx' ), $id ); |
| 294 |
return wp_send_json_error( $error, 401 ); |
| 295 |
} else { |
| 296 |
$error['message'] = __( 'Error: API Key Invalid!', 'notificationx' ); |
| 297 |
return wp_send_json_error( $error, 401 ); |
| 298 |
} |
| 299 |
} |
| 300 |
|
| 301 |
/** |
| 302 |
* Undocumented function |
| 303 |
* |
| 304 |
* @param \WP_REST_Request $request |
| 305 |
* @return void |
| 306 |
*/ |
| 307 |
public function save_response( \WP_REST_Request $request ){ |
| 308 |
$response_data = array( |
| 309 |
'data' => '', |
| 310 |
'error' => false |
| 311 |
); |
| 312 |
|
| 313 |
if ( ! isset( $request['api_key'] ) ) { |
| 314 |
$response_data['error'] = __('Error: You should provide an API key.', 'notificationx'); |
| 315 |
} else { |
| 316 |
if ( ! self::is_valid_api_key( (string) $request['api_key'] ) ) { |
| 317 |
$response_data['error'] = __('Error: Invalid API key.', 'notificationx'); |
| 318 |
} |
| 319 |
} |
| 320 |
|
| 321 |
if ( ! $response_data['error'] ) { |
| 322 |
$response_data['data'] = $request->get_params(); |
| 323 |
if ( isset( $response_data['data']['api_key'] ) ) { |
| 324 |
unset( $response_data['data']['api_key'] ); |
| 325 |
} |
| 326 |
array_walk_recursive( $response_data['data'], function( &$val ) { |
| 327 |
$val = sanitize_text_field( (string) $val ); |
| 328 |
} ); |
| 329 |
if (isset($response_data['data']['id'])){ |
| 330 |
$post = PostType::get_instance()->get_post($response_data['data']['id']); |
| 331 |
if($post['source']){ |
| 332 |
do_action( "nx_api_response_success_{$post['source']}", $response_data['data'] ); |
| 333 |
} |
| 334 |
} |
| 335 |
do_action( 'nx_api_response_success', $response_data['data'] ); |
| 336 |
} |
| 337 |
|
| 338 |
return apply_filters( 'nx_api_response', $response_data ); |
| 339 |
} |
| 340 |
|
| 341 |
/** |
| 342 |
* Undocumented function |
| 343 |
* |
| 344 |
* @param \WP_REST_Request $request |
| 345 |
* @return |
| 346 |
*/ |
| 347 |
public function api_connect( \WP_REST_Request $request ){ |
| 348 |
$params = $request->get_params(); |
| 349 |
$source = !empty($params['source']) ? $params['source'] : ''; |
| 350 |
/** |
| 351 |
* @var Extension |
| 352 |
*/ |
| 353 |
$ext = ExtensionFactory::get_instance()->get($source); |
| 354 |
if($ext && method_exists($ext, 'connect')){ |
| 355 |
return $ext->connect($params); |
| 356 |
} |
| 357 |
else{ |
| 358 |
$result = apply_filters("nx_api_connect_$source", null, $params); |
| 359 |
if($result){ |
| 360 |
return $result; |
| 361 |
} |
| 362 |
} |
| 363 |
return REST::get_instance()->error(); |
| 364 |
} |
| 365 |
|
| 366 |
public function settings_permission( $request ) { |
| 367 |
return current_user_can('edit_notificationx_settings'); |
| 368 |
} |
| 369 |
} |
| 370 |
|
