| 1 |
<?php |
| 2 |
/** |
| 3 |
* AJAX Handlers. |
| 4 |
* |
| 5 |
* @package zip-ai |
| 6 |
*/ |
| 7 |
|
| 8 |
namespace ZipAI\MCP\Classes\Api; |
| 9 |
|
| 10 |
// Exit if accessed directly. |
| 11 |
if ( ! defined( 'ABSPATH' ) ) { |
| 12 |
exit; |
| 13 |
} |
| 14 |
|
| 15 |
// Classes to be used. |
| 16 |
use ZipAI\MCP\Classes\Abilities\Zipai\System\PluginResolver; |
| 17 |
use ZipAI\MCP\Classes\Core\Helper; |
| 18 |
use ZipAI\MCP\Classes\Core\Plugin_Abilities_Toggler; |
| 19 |
use ZipAI\MCP\Classes\Core\Utils; |
| 20 |
|
| 21 |
/** |
| 22 |
* The AJAX_Handlers Class. |
| 23 |
* Handles all AJAX requests. |
| 24 |
*/ |
| 25 |
class AJAX_Handlers { |
| 26 |
|
| 27 |
/** |
| 28 |
* Constructor of this class. |
| 29 |
* |
| 30 |
* @since 1.0.0 |
| 31 |
* @return void |
| 32 |
*/ |
| 33 |
public function __construct() { |
| 34 |
// Hook into admin_init to catch OAuth callback and sync to zip_mcp_settings. |
| 35 |
add_action( 'admin_init', array( $this, 'verify_authorization' ), 5 ); |
| 36 |
|
| 37 |
// Authentication handlers. |
| 38 |
add_action( 'wp_ajax_zipwp_clear_settings', array( $this, 'zipwp_clear_settings' ) ); |
| 39 |
add_action( 'wp_ajax_zipwp_verify_auth_status', array( $this, 'zipwp_verify_auth_status' ) ); |
| 40 |
|
| 41 |
// Media upload from base64. |
| 42 |
add_action( 'wp_ajax_zip_ai_upload_media', array( $this, 'zip_ai_upload_media' ) ); |
| 43 |
|
| 44 |
// Dismiss the inline setup notice (per-user, persists across reloads). |
| 45 |
add_action( 'wp_ajax_zip_ai_dismiss_setup_gate', array( $this, 'zip_ai_dismiss_setup_gate' ) ); |
| 46 |
// Activate the Spectra plugin / Spectra One theme for the setup gate. |
| 47 |
add_action( 'wp_ajax_zip_ai_activate_setup_item', array( $this, 'zip_ai_activate_setup_item' ) ); |
| 48 |
} |
| 49 |
|
| 50 |
|
| 51 |
|
| 52 |
|
| 53 |
/** |
| 54 |
* Clear authentication settings (logout). |
| 55 |
* |
| 56 |
* @since 1.0.0 |
| 57 |
* @return void |
| 58 |
*/ |
| 59 |
public function zipwp_clear_settings() { |
| 60 |
// Check nonce for security. |
| 61 |
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Nonce is verified, not stored. |
| 62 |
$nonce = isset( $_POST['nonce'] ) && is_string( $_POST['nonce'] ) ? $_POST['nonce'] : ''; |
| 63 |
if ( ! wp_verify_nonce( $nonce, 'zip_ai_iframe' ) ) { |
| 64 |
wp_send_json_error( 'Security check failed' ); |
| 65 |
} |
| 66 |
|
| 67 |
// `manage_options` — this handler revokes the App Password and |
| 68 |
// wipes the connection. Should match every other auth/settings |
| 69 |
// surface; an editor must not be able to disconnect the site. |
| 70 |
if ( ! current_user_can( 'manage_options' ) ) { |
| 71 |
wp_send_json_error( 'Insufficient permissions' ); |
| 72 |
} |
| 73 |
|
| 74 |
// Revoke the stored WordPress Application Password (if any) so |
| 75 |
// reconnecting later mints a fresh one and the user's Profile |
| 76 |
// → Application Passwords screen reflects an accurate state. |
| 77 |
// Runs before the option write below so the app_password_* keys |
| 78 |
// referenced by `revoke_app_password()` are still in the option. |
| 79 |
Helper::revoke_app_password(); |
| 80 |
|
| 81 |
// Clear authentication data from mcp settings. |
| 82 |
$mcp_settings = get_option( 'zip_mcp_settings', array() ); |
| 83 |
if ( ! is_array( $mcp_settings ) ) { |
| 84 |
$mcp_settings = array(); |
| 85 |
} |
| 86 |
unset( $mcp_settings['auth_token'] ); |
| 87 |
unset( $mcp_settings['auth_token_server'] ); |
| 88 |
// The ZipWP app token is connection-scoped too. Its only reader is the |
| 89 |
// re-exchange in Helper::get_decrypted_auth_token(), which also requires |
| 90 |
// `user_email` — cleared below — so leaving it was inert rather than |
| 91 |
// harmful. Unset for consistency: a disconnected site should hold no |
| 92 |
// credential from the connection it just dropped. |
| 93 |
unset( $mcp_settings['zip_token'] ); |
| 94 |
unset( $mcp_settings['user_id'] ); |
| 95 |
unset( $mcp_settings['user_email'] ); |
| 96 |
unset( $mcp_settings['user_name'] ); |
| 97 |
unset( $mcp_settings['site_id'] ); |
| 98 |
unset( $mcp_settings['domain'] ); |
| 99 |
unset( $mcp_settings['authenticated_at'] ); |
| 100 |
// The team belongs to the connection, not to the site. Left in place it |
| 101 |
// outlives the disconnect, and a reconnect whose callback carries no |
| 102 |
// team_uuid leaves the stale one to be read back by |
| 103 |
// Helper::get_decrypted_auth_token() and sent on a later re-exchange — |
| 104 |
// re-pointing the credit server at a team the user may have left. |
| 105 |
unset( $mcp_settings['team_uuid'] ); |
| 106 |
// App Password fields are also unset by `revoke_app_password()` |
| 107 |
// above, but we re-apply here defensively in case the revoke |
| 108 |
// path returned early due to a missing credential record. |
| 109 |
unset( $mcp_settings['app_password_authorization'] ); |
| 110 |
unset( $mcp_settings['app_password_uuid'] ); |
| 111 |
unset( $mcp_settings['app_password_user_id'] ); |
| 112 |
$mcp_settings['enabled'] = false; |
| 113 |
update_option( 'zip_mcp_settings', $mcp_settings ); |
| 114 |
|
| 115 |
wp_send_json_success( |
| 116 |
array( |
| 117 |
'message' => 'Settings cleared successfully', |
| 118 |
) |
| 119 |
); |
| 120 |
} |
| 121 |
|
| 122 |
/** |
| 123 |
* Verify authentication status (for polling during auth popup) |
| 124 |
* |
| 125 |
* @return void |
| 126 |
*/ |
| 127 |
public function zipwp_verify_auth_status() { |
| 128 |
// Verify nonce. |
| 129 |
if ( ! isset( $_POST['nonce'] ) || ! is_string( $_POST['nonce'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['nonce'] ) ), 'zip_ai_iframe' ) ) { |
| 130 |
wp_send_json_error( 'Invalid nonce' ); |
| 131 |
} |
| 132 |
|
| 133 |
// Capability check — parity with the other AJAX handlers in this class. |
| 134 |
if ( ! current_user_can( 'manage_options' ) ) { |
| 135 |
wp_send_json_error( 'Insufficient permissions' ); |
| 136 |
} |
| 137 |
|
| 138 |
// Only treat the user as authorized when the stored token is actually decryptable. |
| 139 |
$is_authorized = Helper::is_authorized(); |
| 140 |
|
| 141 |
// Return authorization status. |
| 142 |
wp_send_json_success( |
| 143 |
array( |
| 144 |
'is_authorized' => $is_authorized, |
| 145 |
) |
| 146 |
); |
| 147 |
} |
| 148 |
|
| 149 |
/** |
| 150 |
* Dismiss the inline setup notice for the current user (persists across |
| 151 |
* reloads). The header warning icon still shows while setup is incomplete. |
| 152 |
* |
| 153 |
* @since 1.0.0 |
| 154 |
* @return void |
| 155 |
*/ |
| 156 |
public function zip_ai_dismiss_setup_gate() { |
| 157 |
if ( ! isset( $_POST['nonce'] ) || ! is_string( $_POST['nonce'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['nonce'] ) ), 'zip_ai_iframe' ) ) { |
| 158 |
wp_send_json_error( 'Security check failed' ); |
| 159 |
} |
| 160 |
|
| 161 |
if ( ! current_user_can( 'manage_options' ) ) { |
| 162 |
wp_send_json_error( 'Insufficient permissions' ); |
| 163 |
} |
| 164 |
|
| 165 |
update_user_meta( get_current_user_id(), 'zip_ai_setup_gate_dismissed', 1 ); |
| 166 |
wp_send_json_success(); |
| 167 |
} |
| 168 |
|
| 169 |
/** |
| 170 |
* Activate the Spectra plugin or Spectra One theme for the setup gate. |
| 171 |
* |
| 172 |
* Done server-side via core APIs (activate_plugin / switch_theme) rather than |
| 173 |
* fetching wp-admin activate URLs — those carry esc_html'd nonces ('&') |
| 174 |
* and referer checks that fail under a cross-context fetch. |
| 175 |
* |
| 176 |
* @since 1.0.0 |
| 177 |
* @return void |
| 178 |
*/ |
| 179 |
public function zip_ai_activate_setup_item() { |
| 180 |
if ( ! isset( $_POST['nonce'] ) || ! is_string( $_POST['nonce'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['nonce'] ) ), 'zip_ai_iframe' ) ) { |
| 181 |
wp_send_json_error( 'Security check failed' ); |
| 182 |
} |
| 183 |
|
| 184 |
if ( ! current_user_can( 'manage_options' ) ) { |
| 185 |
wp_send_json_error( 'Insufficient permissions' ); |
| 186 |
} |
| 187 |
|
| 188 |
$type = isset( $_POST['type'] ) && is_string( $_POST['type'] ) ? sanitize_key( wp_unslash( $_POST['type'] ) ) : ''; |
| 189 |
$slug = isset( $_POST['slug'] ) && is_string( $_POST['slug'] ) ? sanitize_text_field( wp_unslash( $_POST['slug'] ) ) : ''; |
| 190 |
|
| 191 |
// Allowlist — this endpoint only activates the setup-gate items, never an |
| 192 |
// arbitrary plugin/theme slug posted by the client. |
| 193 |
$allowed = array( |
| 194 |
'plugin' => array( 'spectra-blocks' ), |
| 195 |
'theme' => array( 'spectra-one' ), |
| 196 |
); |
| 197 |
if ( ! isset( $allowed[ $type ] ) || ! in_array( $slug, $allowed[ $type ], true ) ) { |
| 198 |
wp_send_json_error( 'This item cannot be activated here.' ); |
| 199 |
} |
| 200 |
|
| 201 |
if ( 'plugin' === $type ) { |
| 202 |
if ( ! current_user_can( 'activate_plugins' ) ) { |
| 203 |
wp_send_json_error( 'Insufficient permissions' ); |
| 204 |
} |
| 205 |
if ( ! function_exists( 'activate_plugin' ) || ! function_exists( 'get_plugins' ) ) { |
| 206 |
require_once ABSPATH . 'wp-admin/includes/plugin.php'; |
| 207 |
} |
| 208 |
|
| 209 |
$file = PluginResolver::resolve_plugin_file( $slug ); |
| 210 |
if ( null === $file ) { |
| 211 |
wp_send_json_error( 'Plugin is not installed.' ); |
| 212 |
} |
| 213 |
|
| 214 |
$result = activate_plugin( $file ); |
| 215 |
if ( is_wp_error( $result ) ) { |
| 216 |
Utils::debug_log( sprintf( 'Plugin activation failed for "%s"', $slug ), $result->get_error_message() ); |
| 217 |
wp_send_json_error( "This plugin couldn't be activated. Please try activating it from wp-admin." ); |
| 218 |
} |
| 219 |
wp_send_json_success( array( 'active' => is_plugin_active( $file ) ) ); |
| 220 |
} |
| 221 |
|
| 222 |
if ( ! current_user_can( 'switch_themes' ) ) { |
| 223 |
wp_send_json_error( 'Insufficient permissions' ); |
| 224 |
} |
| 225 |
if ( ! wp_get_theme( $slug )->exists() ) { |
| 226 |
wp_send_json_error( 'Theme is not installed.' ); |
| 227 |
} |
| 228 |
|
| 229 |
switch_theme( $slug ); |
| 230 |
wp_send_json_success( array( 'active' => get_stylesheet() === $slug ) ); |
| 231 |
} |
| 232 |
|
| 233 |
/** |
| 234 |
* Handle OAuth callback and save auth token to zip_mcp_settings. |
| 235 |
* Uses unique nonce (zip_ai_auth_nonce) and callback param (zip-ai-auth) |
| 236 |
* to avoid conflict with UAG plugin's OAuth flow. |
| 237 |
* |
| 238 |
* Security: Uses OAuth state parameter for CSRF protection instead of WordPress nonce. |
| 239 |
* The state parameter is generated before redirect and verified on callback. |
| 240 |
* |
| 241 |
* @since 1.0.0 |
| 242 |
* @return void |
| 243 |
*/ |
| 244 |
public function verify_authorization() { |
| 245 |
// Check for our unique callback parameter - if not present, this is not our callback. |
| 246 |
if ( ! isset( $_GET['zip-ai-auth'] ) || 'true' !== $_GET['zip-ai-auth'] ) { |
| 247 |
return; |
| 248 |
} |
| 249 |
|
| 250 |
// If the current user does not have the required capability, then abandon ship. |
| 251 |
if ( ! current_user_can( 'manage_options' ) ) { |
| 252 |
return; |
| 253 |
} |
| 254 |
|
| 255 |
// If none of the required data is received, abandon ship. |
| 256 |
if ( ! isset( $_GET['credit_token'] ) && ! isset( $_GET['token'] ) && ! isset( $_GET['email'] ) ) { |
| 257 |
return; |
| 258 |
} |
| 259 |
|
| 260 |
$state = isset( $_GET['state'] ) && is_string( $_GET['state'] ) ? sanitize_text_field( $_GET['state'] ) : ''; |
| 261 |
if ( empty( $state ) ) { |
| 262 |
return; |
| 263 |
} |
| 264 |
|
| 265 |
$stored_state = get_transient( 'zip_ai_oauth_state_' . get_current_user_id() ); |
| 266 |
if ( empty( $stored_state ) || ! is_string( $stored_state ) || ! hash_equals( $stored_state, $state ) ) { |
| 267 |
return; |
| 268 |
} |
| 269 |
|
| 270 |
delete_transient( 'zip_ai_oauth_state_' . get_current_user_id() ); |
| 271 |
|
| 272 |
// Get the existing options. |
| 273 |
$mcp_settings = get_option( 'zip_mcp_settings', array() ); |
| 274 |
if ( ! is_array( $mcp_settings ) ) { |
| 275 |
$mcp_settings = array(); |
| 276 |
} |
| 277 |
$email = isset( $_GET['email'] ) && is_string( $_GET['email'] ) ? sanitize_email( wp_unslash( $_GET['email'] ) ) : ''; |
| 278 |
$name = isset( $_GET['name'] ) && is_string( $_GET['name'] ) ? sanitize_text_field( wp_unslash( $_GET['name'] ) ) : ''; |
| 279 |
$zip_token = isset( $_GET['token'] ) && is_string( $_GET['token'] ) ? sanitize_text_field( wp_unslash( $_GET['token'] ) ) : ''; |
| 280 |
$credit_token = isset( $_GET['credit_token'] ) && is_string( $_GET['credit_token'] ) ? sanitize_text_field( wp_unslash( $_GET['credit_token'] ) ) : ''; |
| 281 |
$team_uuid = isset( $_GET['team_uuid'] ) && is_string( $_GET['team_uuid'] ) ? sanitize_text_field( wp_unslash( $_GET['team_uuid'] ) ) : ''; |
| 282 |
$auth_token = ''; |
| 283 |
|
| 284 |
if ( '' !== $zip_token && '' !== $email ) { |
| 285 |
$exchange_result = Helper::exchange_zipwp_token_for_local_auth_token( $zip_token, $email, $name, $team_uuid ); |
| 286 |
|
| 287 |
if ( ! empty( $exchange_result['token'] ) ) { |
| 288 |
$auth_token = (string) $exchange_result['token']; |
| 289 |
} |
| 290 |
|
| 291 |
if ( ! empty( $exchange_result['email'] ) ) { |
| 292 |
$email = $exchange_result['email']; |
| 293 |
} |
| 294 |
|
| 295 |
if ( ! empty( $exchange_result['name'] ) ) { |
| 296 |
$name = $exchange_result['name']; |
| 297 |
} |
| 298 |
} |
| 299 |
|
| 300 |
// Only accept credit_token when the credit server positively validates it. |
| 301 |
// validate_credit_server_auth_token() returns true (valid), false (rejected), |
| 302 |
// or null (unreachable) — fail closed on anything but an explicit true so an |
| 303 |
// attacker who can block/spoof the validate endpoint can't inject a token. |
| 304 |
if ( '' === $auth_token && '' !== $credit_token && true === Helper::validate_credit_server_auth_token( $credit_token ) ) { |
| 305 |
$auth_token = $credit_token; |
| 306 |
} |
| 307 |
|
| 308 |
// Update the auth token if needed. |
| 309 |
if ( '' !== $auth_token ) { |
| 310 |
$mcp_settings['auth_token'] = Utils::encrypt( $auth_token ); |
| 311 |
$mcp_settings['auth_token_server'] = untrailingslashit( ZIPAI_MCP_CREDIT_SERVER_API ); |
| 312 |
|
| 313 |
// Remember the team so a later re-exchange |
| 314 |
// (Helper::get_decrypted_auth_token) sends the same one without |
| 315 |
// another round trip through ZipWP. Only when the callback carries |
| 316 |
// one, so a legacy redirect never clears it. |
| 317 |
// |
| 318 |
// Gated on a SUCCESSFUL connection, alongside auth_token_server, |
| 319 |
// because the team must follow the token it belongs to. Written |
| 320 |
// earlier it survived a FAILED exchange: a callback carrying team B |
| 321 |
// whose exchange failed left auth_token = A with team_uuid = B, and |
| 322 |
// a later re-exchange then sent B for A's token — the cross-tenant |
| 323 |
// mispointing this change exists to prevent. |
| 324 |
if ( '' !== $team_uuid ) { |
| 325 |
$mcp_settings['team_uuid'] = $team_uuid; |
| 326 |
} |
| 327 |
} |
| 328 |
|
| 329 |
// Update the ZIP AI token if needed. |
| 330 |
if ( '' !== $zip_token ) { |
| 331 |
$mcp_settings['zip_token'] = Utils::encrypt( $zip_token ); |
| 332 |
} |
| 333 |
|
| 334 |
// Update the email if needed. |
| 335 |
if ( '' !== $email ) { |
| 336 |
$mcp_settings['user_email'] = $email; |
| 337 |
} |
| 338 |
|
| 339 |
// Update the user name if needed. |
| 340 |
if ( '' !== $name ) { |
| 341 |
$mcp_settings['user_name'] = $name; |
| 342 |
} |
| 343 |
|
| 344 |
// Mark as enabled. |
| 345 |
$mcp_settings['enabled'] = true; |
| 346 |
$mcp_settings['authenticated_at'] = current_time( 'mysql' ); |
| 347 |
|
| 348 |
// Update the zip_mcp_settings option. |
| 349 |
update_option( 'zip_mcp_settings', $mcp_settings ); |
| 350 |
|
| 351 |
// Mint a WordPress Application Password for the server → WP MCP |
| 352 |
// transport on the same connection click. Piggy-backs on the |
| 353 |
// existing OAuth flow so the admin sees one "Connect" step. |
| 354 |
// Failure here is non-fatal for the connection itself (Sanctum |
| 355 |
// auth still works); MCP tool execution will surface a |
| 356 |
// clear error if the App Password is missing. The admin can |
| 357 |
// retry via the disconnect → reconnect path. |
| 358 |
if ( '' !== $auth_token ) { |
| 359 |
$provision = Helper::ensure_app_password_provisioned(); |
| 360 |
if ( empty( $provision['success'] ) ) { |
| 361 |
$code = isset( $provision['code'] ) ? $provision['code'] : 'unknown'; |
| 362 |
error_log( sprintf( '[zip-ai] App Password provisioning failed on connect: %s', $code ) ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log |
| 363 |
} |
| 364 |
|
| 365 |
// The site just connected to ERA — enable MCP for every already-active |
| 366 |
// first-party plugin the toggler maps (e.g. SureRank). Covers the case |
| 367 |
// where a mapped plugin was active BEFORE this connect, so its own |
| 368 |
// `activated_plugin` never ran the toggler. Deliberately outside the |
| 369 |
// provisioning result: the sweep has no dependency on App Passwords, |
| 370 |
// and a reconnect returns `already_provisioned`. Idempotent. |
| 371 |
Plugin_Abilities_Toggler::sweep_active_mapped_plugins(); |
| 372 |
} |
| 373 |
|
| 374 |
// Run initial site scan after successful auth — gives ZIP AI day-zero context. |
| 375 |
// Fire non-blocking request to local REST endpoint (avoids WP cron unreliability). |
| 376 |
if ( '' !== $auth_token ) { |
| 377 |
\ZipAI\MCP\Classes\Core\Site_Scanner::fire_scan_request(); |
| 378 |
} |
| 379 |
|
| 380 |
// Redirect back to the assistant screen after successful authentication. |
| 381 |
// This prevents users from landing on a generic admin URL with callback query params. |
| 382 |
wp_safe_redirect( admin_url( 'options-general.php?page=zip-ai-assistant' ) ); |
| 383 |
exit; |
| 384 |
} |
| 385 |
|
| 386 |
/** |
| 387 |
* Upload a base64 image to the WordPress Media Library. |
| 388 |
* |
| 389 |
* Expects POST params: nonce, base64_data, mime_type. |
| 390 |
* |
| 391 |
* @since 0.0.5 |
| 392 |
* @return void |
| 393 |
*/ |
| 394 |
public function zip_ai_upload_media() { |
| 395 |
// Check nonce for security. |
| 396 |
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized |
| 397 |
$nonce = isset( $_POST['nonce'] ) && is_string( $_POST['nonce'] ) ? $_POST['nonce'] : ''; |
| 398 |
if ( ! wp_verify_nonce( $nonce, 'zip_ai_iframe' ) ) { |
| 399 |
wp_send_json_error( array( 'message' => 'Security check failed.' ), 403 ); |
| 400 |
} |
| 401 |
|
| 402 |
if ( ! current_user_can( 'upload_files' ) ) { |
| 403 |
wp_send_json_error( array( 'message' => 'You do not have permission to upload files.' ), 403 ); |
| 404 |
} |
| 405 |
|
| 406 |
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput -- raw base64 decoded server-side |
| 407 |
$base64_data = isset( $_POST['base64_data'] ) && is_string( $_POST['base64_data'] ) ? $_POST['base64_data'] : ''; |
| 408 |
$mime_type = isset( $_POST['mime_type'] ) && is_string( $_POST['mime_type'] ) ? sanitize_text_field( $_POST['mime_type'] ) : ''; |
| 409 |
|
| 410 |
if ( empty( $base64_data ) || empty( $mime_type ) ) { |
| 411 |
wp_send_json_error( array( 'message' => 'Missing base64 data or MIME type.' ), 400 ); |
| 412 |
} |
| 413 |
|
| 414 |
$media_service = new \ZipAI\MCP\Classes\Services\Media_Service(); |
| 415 |
$attachment_id = $media_service->upload_from_base64( $base64_data, $mime_type ); |
| 416 |
|
| 417 |
if ( is_wp_error( $attachment_id ) ) { |
| 418 |
Utils::debug_log( 'Media upload failed', $attachment_id->get_error_message() ); |
| 419 |
wp_send_json_error( array( 'message' => "That image couldn't be uploaded. Please try again." ), 500 ); |
| 420 |
} |
| 421 |
|
| 422 |
wp_send_json_success( |
| 423 |
array( |
| 424 |
'attachment_id' => $attachment_id, |
| 425 |
'url' => wp_get_attachment_url( $attachment_id ), |
| 426 |
) |
| 427 |
); |
| 428 |
} |
| 429 |
} |
| 430 |
|
