| 1 |
<?php |
| 2 |
/** |
| 3 |
* Checkout Ajax. |
| 4 |
* |
| 5 |
* @package CartFlows |
| 6 |
*/ |
| 7 |
|
| 8 |
// Exit if accessed directly. |
| 9 |
if ( ! defined( 'ABSPATH' ) ) { |
| 10 |
exit; |
| 11 |
} |
| 12 |
/** |
| 13 |
* Global Checkout |
| 14 |
* |
| 15 |
* @since 1.0.0 |
| 16 |
*/ |
| 17 |
class Cartflows_Checkout_Ajax { |
| 18 |
|
| 19 |
|
| 20 |
/** |
| 21 |
* Member Variable |
| 22 |
* |
| 23 |
* @var object instance |
| 24 |
*/ |
| 25 |
private static $instance; |
| 26 |
|
| 27 |
/** |
| 28 |
* Initiator |
| 29 |
*/ |
| 30 |
public static function get_instance() { |
| 31 |
if ( ! isset( self::$instance ) ) { |
| 32 |
self::$instance = new self(); |
| 33 |
} |
| 34 |
return self::$instance; |
| 35 |
} |
| 36 |
|
| 37 |
/** |
| 38 |
* Constructor |
| 39 |
*/ |
| 40 |
public function __construct() { |
| 41 |
|
| 42 |
/* Ajax Endpoint */ |
| 43 |
add_filter( 'woocommerce_ajax_get_endpoint', array( $this, 'get_ajax_endpoint' ), 10, 2 ); |
| 44 |
|
| 45 |
add_action( 'wp_ajax_wcf_woo_apply_coupon', array( $this, 'apply_coupon' ) ); |
| 46 |
add_action( 'wp_ajax_nopriv_wcf_woo_apply_coupon', array( $this, 'apply_coupon' ) ); |
| 47 |
|
| 48 |
add_action( 'wp_ajax_wcf_woo_remove_coupon', array( $this, 'remove_coupon' ) ); |
| 49 |
add_action( 'wp_ajax_nopriv_wcf_woo_remove_coupon', array( $this, 'remove_coupon' ) ); |
| 50 |
|
| 51 |
add_action( 'wp_ajax_wcf_woo_remove_cart_product', array( $this, 'wcf_woo_remove_cart_product' ) ); |
| 52 |
add_action( 'wp_ajax_nopriv_wcf_woo_remove_cart_product', array( $this, 'wcf_woo_remove_cart_product' ) ); |
| 53 |
|
| 54 |
add_action( 'wp_ajax_nopriv_wcf_check_email_exists', array( $this, 'check_email_exists' ) ); |
| 55 |
add_action( 'wp_ajax_nopriv_wcf_woocommerce_login', array( $this, 'woocommerce_user_login' ) ); |
| 56 |
|
| 57 |
add_action( 'wp_ajax_wcf_upload_checkout_file', array( $this, 'upload_checkout_file' ) ); |
| 58 |
add_action( 'wp_ajax_nopriv_wcf_upload_checkout_file', array( $this, 'upload_checkout_file' ) ); |
| 59 |
} |
| 60 |
|
| 61 |
/** |
| 62 |
* Get ajax end points. |
| 63 |
* |
| 64 |
* @param string $endpoint_url end point URL. |
| 65 |
* @param string $request end point request. |
| 66 |
* @return string |
| 67 |
*/ |
| 68 |
public function get_ajax_endpoint( $endpoint_url, $request ) { |
| 69 |
global $post; |
| 70 |
|
| 71 |
if ( ! empty( $post ) && ! empty( $_SERVER['REQUEST_URI'] ) ) { |
| 72 |
|
| 73 |
if ( _is_wcf_checkout_type() ) { |
| 74 |
|
| 75 |
$query_args = array(); |
| 76 |
$url = $endpoint_url; |
| 77 |
|
| 78 |
if ( mb_strpos( $endpoint_url, 'checkout', 0, 'utf-8' ) === false ) { |
| 79 |
|
| 80 |
if ( '' === $request ) { |
| 81 |
$query_args = array( |
| 82 |
'wc-ajax' => '%%endpoint%%', |
| 83 |
); |
| 84 |
} else { |
| 85 |
$query_args = array( |
| 86 |
'wc-ajax' => $request, |
| 87 |
); |
| 88 |
} |
| 89 |
|
| 90 |
$uri = explode( '?', esc_url_raw( $_SERVER['REQUEST_URI'] ), 2 ); |
| 91 |
$url = esc_url( $uri[0] ); |
| 92 |
} |
| 93 |
|
| 94 |
$query_args['wcf_checkout_id'] = $post->ID; |
| 95 |
|
| 96 |
$endpoint_url = add_query_arg( $query_args, $url ); |
| 97 |
} |
| 98 |
} |
| 99 |
|
| 100 |
return $endpoint_url; |
| 101 |
} |
| 102 |
|
| 103 |
/** |
| 104 |
* Apply coupon on submit of custom coupon form. |
| 105 |
*/ |
| 106 |
public function apply_coupon() { |
| 107 |
$response = ''; |
| 108 |
|
| 109 |
if ( ! check_ajax_referer( 'wcf-apply-coupon', 'security', false ) ) { |
| 110 |
$response_data = array( |
| 111 |
'status' => false, |
| 112 |
'error' => __( 'Nonce validation failed', 'cartflows' ), |
| 113 |
); |
| 114 |
wp_send_json_error( $response_data ); |
| 115 |
} |
| 116 |
|
| 117 |
// Update the billing email before adding a coupon required for coupon conditions. |
| 118 |
$this->update_billing_email(); |
| 119 |
|
| 120 |
ob_start(); |
| 121 |
|
| 122 |
if ( ! empty( $_POST['coupon_code'] ) ) { |
| 123 |
$result = WC()->cart->add_discount( sanitize_text_field( wp_unslash( $_POST['coupon_code'] ) ) ); |
| 124 |
} else { |
| 125 |
wc_add_notice( WC_Coupon::get_generic_coupon_error( WC_Coupon::E_WC_COUPON_PLEASE_ENTER ), 'error' ); |
| 126 |
} |
| 127 |
|
| 128 |
$response = array( |
| 129 |
'status' => $result, |
| 130 |
'msg' => wc_print_notices( true ), |
| 131 |
); |
| 132 |
|
| 133 |
ob_clean(); // Clearing the uncessary echo HTML. |
| 134 |
wp_send_json( $response ); |
| 135 |
|
| 136 |
die(); |
| 137 |
} |
| 138 |
|
| 139 |
/** |
| 140 |
* Remove coupon. |
| 141 |
*/ |
| 142 |
public function remove_coupon() { |
| 143 |
check_ajax_referer( 'wcf-remove-coupon', 'security' ); |
| 144 |
$coupon = isset( $_POST['coupon_code'] ) ? sanitize_text_field( wp_unslash( $_POST['coupon_code'] ) ) : false; |
| 145 |
|
| 146 |
if ( empty( $coupon ) ) { |
| 147 |
echo "<div class='woocommerce-error'>" . esc_html__( 'Sorry there was a problem removing this coupon.', 'cartflows' ) . '</div>'; |
| 148 |
} else { |
| 149 |
WC()->cart->remove_coupon( $coupon ); |
| 150 |
echo "<div class='woocommerce-error'>" . esc_html__( 'Coupon has been removed.', 'cartflows' ) . '</div>'; |
| 151 |
} |
| 152 |
wc_print_notices(); |
| 153 |
wp_die(); |
| 154 |
} |
| 155 |
|
| 156 |
/** |
| 157 |
* Remove cart item. |
| 158 |
*/ |
| 159 |
public function wcf_woo_remove_cart_product() { |
| 160 |
check_ajax_referer( 'wcf-remove-cart-product', 'security' ); |
| 161 |
$product_key = isset( $_POST['p_key'] ) ? sanitize_text_field( wp_unslash( $_POST['p_key'] ) ) : false; |
| 162 |
$product_id = isset( $_POST['p_id'] ) ? sanitize_text_field( wp_unslash( $_POST['p_id'] ) ) : ''; |
| 163 |
$product_title = get_the_title( $product_id ); |
| 164 |
|
| 165 |
$needs_shipping = false; |
| 166 |
$is_order_bump = false; |
| 167 |
$order_bump_id = ''; |
| 168 |
|
| 169 |
// Check if the product is an order bump before removing it. |
| 170 |
if ( ! empty( $product_key ) ) { |
| 171 |
$cart_item = WC()->cart->get_cart_item( $product_key ); |
| 172 |
if ( isset( $cart_item['cartflows_bump'] ) && $cart_item['cartflows_bump'] ) { |
| 173 |
$is_order_bump = true; |
| 174 |
$order_bump_id = isset( $cart_item['ob_id'] ) ? $cart_item['ob_id'] : ''; |
| 175 |
} |
| 176 |
|
| 177 |
WC()->cart->remove_cart_item( $product_key ); |
| 178 |
$msg = "<div class='woocommerce-message'>" . $product_title . __( ' has been removed.', 'cartflows' ) . '</div>'; |
| 179 |
} else { |
| 180 |
$msg = "<div class='woocommerce-message'>" . __( 'Sorry there was a problem removing ', 'cartflows' ) . $product_title; |
| 181 |
} |
| 182 |
|
| 183 |
foreach ( WC()->cart->get_cart() as $cart_item_key => $values ) { |
| 184 |
if ( $values['data']->needs_shipping() ) { |
| 185 |
$needs_shipping = true; |
| 186 |
break; |
| 187 |
} |
| 188 |
} |
| 189 |
|
| 190 |
$response = array( |
| 191 |
'need_shipping' => $needs_shipping, |
| 192 |
'msg' => $msg, |
| 193 |
'is_order_bump' => $is_order_bump, |
| 194 |
'order_bump_id' => $order_bump_id, |
| 195 |
); |
| 196 |
|
| 197 |
echo wp_json_encode( $response ); |
| 198 |
wp_die(); |
| 199 |
} |
| 200 |
|
| 201 |
|
| 202 |
/** |
| 203 |
* Check email exist. |
| 204 |
*/ |
| 205 |
public function check_email_exists() { |
| 206 |
|
| 207 |
check_ajax_referer( 'check-email-exist', 'security' ); |
| 208 |
|
| 209 |
$email_address = isset( $_POST['email_address'] ) ? sanitize_email( wp_unslash( $_POST['email_address'] ) ) : false; |
| 210 |
|
| 211 |
$is_login_allowed = 'yes' === get_option( 'woocommerce_enable_checkout_login_reminder' ); |
| 212 |
|
| 213 |
// Security: Only check email existence when the checkout login UX needs it. |
| 214 |
// Otherwise the boolean would leak registered emails for no UX benefit. |
| 215 |
$is_exist = $is_login_allowed && email_exists( $email_address ); |
| 216 |
|
| 217 |
$response = array( |
| 218 |
'success' => boolval( $is_exist ), |
| 219 |
'is_login_allowed' => $is_login_allowed, |
| 220 |
'msg' => $is_exist ? __( 'Email Exist.', 'cartflows' ) : __( 'Email not exist', 'cartflows' ), |
| 221 |
); |
| 222 |
|
| 223 |
wp_send_json_success( $response ); |
| 224 |
} |
| 225 |
|
| 226 |
/** |
| 227 |
* Update billing email address before applying the coupon. This is used for coupon conditions. |
| 228 |
* |
| 229 |
* @return void |
| 230 |
* @since 2.0.12 |
| 231 |
*/ |
| 232 |
public function update_billing_email() { |
| 233 |
|
| 234 |
if ( ! wcf()->is_woo_active ) { |
| 235 |
return; |
| 236 |
} |
| 237 |
|
| 238 |
if ( ! class_exists( 'Automattic\WooCommerce\Utilities\ArrayUtil' ) ) { |
| 239 |
return; |
| 240 |
} |
| 241 |
|
| 242 |
// Sanitize the billing email. |
| 243 |
$billing_email = ! empty( $_POST['billing_email'] ) ? sanitize_email( wp_unslash( $_POST['billing_email'] ) ) : ''; //phpcs:ignore WordPress.Security.NonceVerification.Missing |
| 244 |
|
| 245 |
$billing_email = \Automattic\WooCommerce\Utilities\ArrayUtil::get_value_or_default( |
| 246 |
array( |
| 247 |
'billing_email' => $billing_email, |
| 248 |
), |
| 249 |
'billing_email' |
| 250 |
); |
| 251 |
|
| 252 |
if ( is_string( $billing_email ) && is_email( $billing_email ) ) { |
| 253 |
wc()->customer->set_billing_email( $billing_email ); |
| 254 |
} |
| 255 |
} |
| 256 |
|
| 257 |
/** |
| 258 |
* Check email exist. |
| 259 |
*/ |
| 260 |
public function woocommerce_user_login() { |
| 261 |
|
| 262 |
check_ajax_referer( 'woocommerce-login', 'security' ); |
| 263 |
|
| 264 |
$response = array( |
| 265 |
'success' => false, |
| 266 |
); |
| 267 |
|
| 268 |
// wp_signon() accepts username or email via user_login; sanitize_email() would drop usernames. |
| 269 |
$user_login = isset( $_POST['email'] ) ? sanitize_text_field( wp_unslash( $_POST['email'] ) ) : ''; |
| 270 |
$password = isset( $_POST['password'] ) ? wp_unslash( $_POST['password'] ) : ''; // phpcs:disable WordPress.Security.ValidatedSanitizedInput.InputNotSanitized |
| 271 |
|
| 272 |
$creds = array( |
| 273 |
'user_login' => $user_login, |
| 274 |
'user_password' => $password, |
| 275 |
'remember' => false, |
| 276 |
); |
| 277 |
|
| 278 |
$user = wp_signon( $creds, false ); |
| 279 |
|
| 280 |
if ( ! is_wp_error( $user ) ) { |
| 281 |
$response = array( |
| 282 |
'success' => true, |
| 283 |
); |
| 284 |
} else { |
| 285 |
// Mirror WC's process_login() so security plugins see the failure. |
| 286 |
do_action( 'woocommerce_login_failed' ); |
| 287 |
// Generic error to prevent user enumeration. |
| 288 |
$response['error'] = __( 'Invalid username or password.', 'cartflows' ); |
| 289 |
} |
| 290 |
|
| 291 |
wp_send_json_success( $response ); |
| 292 |
} |
| 293 |
|
| 294 |
/** |
| 295 |
* Handle checkout file upload via AJAX. |
| 296 |
* |
| 297 |
* @since 2.2.2 |
| 298 |
* @return void |
| 299 |
*/ |
| 300 |
public function upload_checkout_file() { |
| 301 |
|
| 302 |
if ( ! check_ajax_referer( 'wcf-file-upload', 'security', false ) ) { |
| 303 |
wp_send_json_error( |
| 304 |
array( 'error' => __( 'Nonce validation failed.', 'cartflows' ) ) |
| 305 |
); |
| 306 |
} |
| 307 |
|
| 308 |
// Security: this endpoint is nopriv, so bind every upload to a real checkout step's file field to prevent arbitrary writes. |
| 309 |
$checkout_id = empty( $_POST['checkout_id'] ) ? 0 : absint( $_POST['checkout_id'] ); // phpcs:ignore WordPress.Security.NonceVerification.Missing |
| 310 |
$field_key = empty( $_POST['field_key'] ) ? '' : sanitize_text_field( wp_unslash( $_POST['field_key'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Missing |
| 311 |
|
| 312 |
if ( ! $this->is_valid_file_upload_field( $checkout_id, $field_key ) ) { |
| 313 |
wp_send_json_error( |
| 314 |
array( 'error' => __( 'This upload is not associated with a valid checkout file field.', 'cartflows' ) ) |
| 315 |
); |
| 316 |
} |
| 317 |
|
| 318 |
if ( empty( $_FILES['wcf_checkout_file']['tmp_name'] ) ) { |
| 319 |
wp_send_json_error( |
| 320 |
array( 'error' => __( 'No file uploaded.', 'cartflows' ) ) |
| 321 |
); |
| 322 |
} |
| 323 |
|
| 324 |
if ( ! function_exists( 'wp_handle_upload' ) ) { |
| 325 |
require_once ABSPATH . 'wp-admin/includes/file.php'; |
| 326 |
} |
| 327 |
|
| 328 |
$file = $_FILES['wcf_checkout_file']; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput, WordPress.Security.NonceVerification.Missing |
| 329 |
$file['name'] = sanitize_file_name( $file['name'] ); |
| 330 |
$file['ext'] = strtolower( pathinfo( $file['name'], PATHINFO_EXTENSION ) ); |
| 331 |
|
| 332 |
$master_allowed = Cartflows_Helper::get_allowed_file_extensions(); |
| 333 |
|
| 334 |
$restrictions = $this->get_field_restrictions(); |
| 335 |
|
| 336 |
$allowed_extensions = empty( $restrictions['extensions'] ) |
| 337 |
? $master_allowed |
| 338 |
: array_values( array_intersect( $master_allowed, $restrictions['extensions'] ) ); |
| 339 |
|
| 340 |
if ( ! in_array( $file['ext'], $allowed_extensions, true ) ) { |
| 341 |
wp_send_json_error( array( 'error' => __( 'File type is not allowed.', 'cartflows' ) ) ); |
| 342 |
} |
| 343 |
|
| 344 |
if ( (int) $file['size'] > $restrictions['max_size'] ) { |
| 345 |
wp_send_json_error( array( 'error' => __( 'File size exceeds the allowed limit.', 'cartflows' ) ) ); |
| 346 |
} |
| 347 |
|
| 348 |
$check = wp_check_filetype_and_ext( $file['tmp_name'], $file['name'], wp_get_mime_types() ); |
| 349 |
|
| 350 |
if ( empty( $check['ext'] ) || $check['ext'] !== $file['ext'] ) { |
| 351 |
wp_send_json_error( array( 'error' => __( 'Invalid or corrupted file.', 'cartflows' ) ) ); |
| 352 |
} |
| 353 |
|
| 354 |
$result = $this->move_uploaded_file( $file ); |
| 355 |
|
| 356 |
wp_send_json_success( |
| 357 |
array( |
| 358 |
'success' => true, |
| 359 |
'url' => esc_url_raw( $result['url'] ), |
| 360 |
'filename' => sanitize_file_name( basename( $result['file'] ) ), |
| 361 |
) |
| 362 |
); |
| 363 |
} |
| 364 |
|
| 365 |
/** |
| 366 |
* Resolve a checkout field from step meta, using the same accessors and gates as the renderer. |
| 367 |
* |
| 368 |
* @since 3.2.1 |
| 369 |
* |
| 370 |
* @param int $checkout_id Checkout step post ID. |
| 371 |
* @param string $field_key Billing/shipping field key. |
| 372 |
* @return array|null The field definition when it is rendered on a checkout step, else null. |
| 373 |
*/ |
| 374 |
private function get_upload_field( $checkout_id, $field_key ) { |
| 375 |
|
| 376 |
if ( empty( $checkout_id ) || empty( $field_key ) ) { |
| 377 |
return null; |
| 378 |
} |
| 379 |
|
| 380 |
// Must be a checkout step specifically (post type is shared across all step types). |
| 381 |
if ( CARTFLOWS_STEP_POST_TYPE !== get_post_type( $checkout_id ) || 'checkout' !== get_post_meta( $checkout_id, 'wcf-step-type', true ) ) { |
| 382 |
return null; |
| 383 |
} |
| 384 |
|
| 385 |
// Custom checkout fields must be enabled, mirroring the render path gate. |
| 386 |
if ( ! _is_wcf_meta_custom_checkout( $checkout_id ) ) { |
| 387 |
return null; |
| 388 |
} |
| 389 |
|
| 390 |
$field_type = ( 0 === strpos( $field_key, 'shipping_' ) ) ? 'shipping' : 'billing'; |
| 391 |
$saved_fields = wcf()->options->get_checkout_meta_value( $checkout_id, 'wcf_field_order_' . $field_type ); |
| 392 |
|
| 393 |
if ( ! is_array( $saved_fields ) || empty( $saved_fields[ $field_key ] ) || ! is_array( $saved_fields[ $field_key ] ) ) { |
| 394 |
return null; |
| 395 |
} |
| 396 |
|
| 397 |
return $saved_fields[ $field_key ]; |
| 398 |
} |
| 399 |
|
| 400 |
/** |
| 401 |
* Confirm an upload targets a rendered checkout file field. |
| 402 |
* |
| 403 |
* @since 3.2.1 |
| 404 |
* |
| 405 |
* @param int $checkout_id Checkout step post ID. |
| 406 |
* @param string $field_key Billing/shipping field key. |
| 407 |
* @return bool True when the field is an enabled file-upload field on a checkout step. |
| 408 |
*/ |
| 409 |
private function is_valid_file_upload_field( $checkout_id, $field_key ) { |
| 410 |
|
| 411 |
$field = $this->get_upload_field( $checkout_id, $field_key ); |
| 412 |
|
| 413 |
if ( null === $field || empty( $field['enabled'] ) ) { |
| 414 |
return false; |
| 415 |
} |
| 416 |
|
| 417 |
return isset( $field['type'] ) && 'file' === $field['type']; |
| 418 |
} |
| 419 |
|
| 420 |
/** |
| 421 |
* Retrieve file size and type restrictions from field settings. |
| 422 |
* |
| 423 |
* @since 2.2.2 |
| 424 |
* |
| 425 |
* @return array{max_size:int, extensions:string[]} Field-level upload restrictions. |
| 426 |
*/ |
| 427 |
private function get_field_restrictions() { |
| 428 |
|
| 429 |
$max_size = 5 * 1024 * 1024; // 5MB default |
| 430 |
$extensions = array(); |
| 431 |
|
| 432 |
$field_key = empty( $_POST['field_key'] ) ? '' : sanitize_text_field( wp_unslash( $_POST['field_key'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Missing |
| 433 |
$checkout_id = empty( $_POST['checkout_id'] ) ? 0 : absint( $_POST['checkout_id'] ); // phpcs:ignore WordPress.Security.NonceVerification.Missing |
| 434 |
|
| 435 |
$field = $this->get_upload_field( $checkout_id, $field_key ); |
| 436 |
|
| 437 |
if ( null === $field ) { |
| 438 |
return compact( 'max_size', 'extensions' ); |
| 439 |
} |
| 440 |
|
| 441 |
$custom_attributes = empty( $field['custom_attributes'] ) || ! is_array( $field['custom_attributes'] ) |
| 442 |
? array() |
| 443 |
: $field['custom_attributes']; |
| 444 |
|
| 445 |
if ( empty( $custom_attributes ) ) { |
| 446 |
return compact( 'max_size', 'extensions' ); |
| 447 |
} |
| 448 |
|
| 449 |
if ( ! empty( $custom_attributes['file_size'] ) && is_scalar( $custom_attributes['file_size'] ) ) { |
| 450 |
$max_size = max( 1, absint( $custom_attributes['file_size'] ) ) * 1024 * 1024; |
| 451 |
} |
| 452 |
|
| 453 |
if ( ! empty( $custom_attributes['accepted_file_types'] ) ) { |
| 454 |
$extensions = $this->normalize_extension_list( $custom_attributes['accepted_file_types'] ); |
| 455 |
} |
| 456 |
|
| 457 |
return compact( 'max_size', 'extensions' ); |
| 458 |
} |
| 459 |
|
| 460 |
/** |
| 461 |
* Normalize accepted file types into a lowercase extension list. |
| 462 |
* |
| 463 |
* @since 2.2.2 |
| 464 |
* |
| 465 |
* @param string $raw Raw accepted file types value. |
| 466 |
* @return array Normalized extensions. |
| 467 |
*/ |
| 468 |
private function normalize_extension_list( $raw ) { |
| 469 |
|
| 470 |
if ( ! is_string( $raw ) || '' === trim( $raw ) ) { |
| 471 |
return array(); |
| 472 |
} |
| 473 |
|
| 474 |
$extensions = array_map( 'strtolower', array_map( 'trim', explode( ',', $raw ) ) ); |
| 475 |
|
| 476 |
return array_values( array_filter( $extensions ) ); |
| 477 |
} |
| 478 |
|
| 479 |
/** |
| 480 |
* Absolute path and URL of the protected checkout upload directory. |
| 481 |
* |
| 482 |
* @since 3.2.1 |
| 483 |
* |
| 484 |
* @return array Path and URL checkout uploads are stored under. |
| 485 |
*/ |
| 486 |
private function get_checkout_upload_dir() { |
| 487 |
|
| 488 |
$upload_dir = wp_upload_dir(); |
| 489 |
|
| 490 |
return array( |
| 491 |
'path' => trailingslashit( $upload_dir['basedir'] ) . 'cartflows-checkout', |
| 492 |
'url' => trailingslashit( $upload_dir['baseurl'] ) . 'cartflows-checkout', |
| 493 |
); |
| 494 |
} |
| 495 |
|
| 496 |
/** |
| 497 |
* Point wp_handle_upload() at the protected checkout upload directory. |
| 498 |
* |
| 499 |
* @since 3.2.1 |
| 500 |
* |
| 501 |
* @param array $dirs Upload directory data. |
| 502 |
* @return array |
| 503 |
*/ |
| 504 |
public function set_checkout_upload_dir( $dirs ) { |
| 505 |
|
| 506 |
$checkout_dir = $this->get_checkout_upload_dir(); |
| 507 |
|
| 508 |
$dirs['path'] = $checkout_dir['path']; |
| 509 |
$dirs['url'] = $checkout_dir['url']; |
| 510 |
$dirs['subdir'] = ''; |
| 511 |
|
| 512 |
return $dirs; |
| 513 |
} |
| 514 |
|
| 515 |
/** |
| 516 |
* Create the checkout upload directory with a deny-all .htaccess and an index.php. |
| 517 |
* |
| 518 |
* Security: this endpoint is nopriv and the files are shopper-supplied, so the directory |
| 519 |
* that holds them must never execute or list what it contains. |
| 520 |
* |
| 521 |
* @since 3.2.1 |
| 522 |
* |
| 523 |
* @return void |
| 524 |
*/ |
| 525 |
private function protect_checkout_upload_dir() { |
| 526 |
|
| 527 |
$checkout_dir = $this->get_checkout_upload_dir(); |
| 528 |
|
| 529 |
if ( ! wp_mkdir_p( $checkout_dir['path'] ) ) { |
| 530 |
return; |
| 531 |
} |
| 532 |
|
| 533 |
if ( ! function_exists( 'WP_Filesystem' ) ) { |
| 534 |
require_once ABSPATH . 'wp-admin/includes/file.php'; |
| 535 |
} |
| 536 |
|
| 537 |
if ( ! WP_Filesystem() ) { |
| 538 |
return; |
| 539 |
} |
| 540 |
|
| 541 |
global $wp_filesystem; |
| 542 |
|
| 543 |
$htaccess = trailingslashit( $checkout_dir['path'] ) . '.htaccess'; |
| 544 |
|
| 545 |
if ( ! $wp_filesystem->exists( $htaccess ) ) { |
| 546 |
$rules = "# Generated by CartFlows - checkout uploads must never be executed or served as code.\n"; |
| 547 |
$rules .= "<IfModule mod_php.c>\n\tphp_flag engine off\n</IfModule>\n"; |
| 548 |
$rules .= "<IfModule mod_php7.c>\n\tphp_flag engine off\n</IfModule>\n"; |
| 549 |
$rules .= "<IfModule mod_php8.c>\n\tphp_flag engine off\n</IfModule>\n"; |
| 550 |
$rules .= "<FilesMatch \"\\.(?i:php|phar|phtml|php[0-9]|phps|pl|py|cgi|shtml)$\">\n"; |
| 551 |
$rules .= "\t<IfModule mod_authz_core.c>\n\t\tRequire all denied\n\t</IfModule>\n"; |
| 552 |
$rules .= "\t<IfModule !mod_authz_core.c>\n\t\tDeny from all\n\t</IfModule>\n"; |
| 553 |
$rules .= "</FilesMatch>\n"; |
| 554 |
|
| 555 |
$wp_filesystem->put_contents( $htaccess, $rules, FS_CHMOD_FILE ); |
| 556 |
} |
| 557 |
|
| 558 |
$index = trailingslashit( $checkout_dir['path'] ) . 'index.php'; |
| 559 |
|
| 560 |
if ( ! $wp_filesystem->exists( $index ) ) { |
| 561 |
$wp_filesystem->put_contents( $index, "<?php\n// Silence is golden.\n", FS_CHMOD_FILE ); |
| 562 |
} |
| 563 |
} |
| 564 |
|
| 565 |
/** |
| 566 |
* Re-encode an uploaded image so an appended payload cannot survive inside it. |
| 567 |
* |
| 568 |
* Security: a valid GIF or JPEG with PHP appended passes wp_check_filetype_and_ext(); |
| 569 |
* re-encoding keeps only the image data. An image that cannot be re-encoded is deleted. |
| 570 |
* |
| 571 |
* @since 3.2.1 |
| 572 |
* |
| 573 |
* @param string $path Absolute path of the uploaded file. |
| 574 |
* @return bool True when the stored file is safe to keep. |
| 575 |
*/ |
| 576 |
private function reencode_uploaded_image( $path ) { |
| 577 |
|
| 578 |
$filetype = wp_check_filetype( $path ); |
| 579 |
|
| 580 |
if ( empty( $filetype['type'] ) || 0 !== strpos( $filetype['type'], 'image/' ) ) { |
| 581 |
return true; |
| 582 |
} |
| 583 |
|
| 584 |
$editor = wp_get_image_editor( $path ); |
| 585 |
|
| 586 |
if ( is_wp_error( $editor ) ) { |
| 587 |
wp_delete_file( $path ); |
| 588 |
return false; |
| 589 |
} |
| 590 |
|
| 591 |
$saved = $editor->save( $path ); |
| 592 |
|
| 593 |
if ( is_wp_error( $saved ) ) { |
| 594 |
wp_delete_file( $path ); |
| 595 |
return false; |
| 596 |
} |
| 597 |
|
| 598 |
return true; |
| 599 |
} |
| 600 |
|
| 601 |
|
| 602 |
/** |
| 603 |
* Move the uploaded file into the WordPress uploads directory. |
| 604 |
* |
| 605 |
* @since 2.2.2 |
| 606 |
* |
| 607 |
* @param array $file Normalized file data. |
| 608 |
* @return array Upload result. |
| 609 |
*/ |
| 610 |
private function move_uploaded_file( array $file ) { |
| 611 |
|
| 612 |
$this->protect_checkout_upload_dir(); |
| 613 |
|
| 614 |
$checkout_dir = $this->get_checkout_upload_dir(); |
| 615 |
$file['name'] = wp_unique_filename( $checkout_dir['path'], 'wcf_' . wp_generate_uuid4() . '.' . $file['ext'] ); |
| 616 |
|
| 617 |
add_filter( 'upload_dir', array( $this, 'set_checkout_upload_dir' ) ); |
| 618 |
|
| 619 |
$result = wp_handle_upload( |
| 620 |
$file, |
| 621 |
array( |
| 622 |
'test_form' => false, |
| 623 |
'mimes' => wp_get_mime_types(), |
| 624 |
) |
| 625 |
); |
| 626 |
|
| 627 |
remove_filter( 'upload_dir', array( $this, 'set_checkout_upload_dir' ) ); |
| 628 |
|
| 629 |
if ( isset( $result['error'] ) ) { |
| 630 |
wp_send_json_error( |
| 631 |
array( 'error' => esc_html( $result['error'] ) ) |
| 632 |
); |
| 633 |
} |
| 634 |
|
| 635 |
if ( ! $this->reencode_uploaded_image( $result['file'] ) ) { |
| 636 |
wp_send_json_error( |
| 637 |
array( 'error' => __( 'This image could not be processed. Please upload a different file.', 'cartflows' ) ) |
| 638 |
); |
| 639 |
} |
| 640 |
|
| 641 |
return $result; |
| 642 |
} |
| 643 |
} |
| 644 |
|
| 645 |
/** |
| 646 |
* Kicking this off by calling 'get_instance()' method |
| 647 |
*/ |
| 648 |
Cartflows_Checkout_Ajax::get_instance(); |
| 649 |
|
