Make coupon metadata read robust against wrongly stored product related metadata (#48362)

Coupon metadata keys `product_ids` and `excluded_product_ids` are stored by WooCommerce as a comma-saparated list of values, but apparently some plugins mistakenly re-store these as serialized arrays. This pull request changes the database metadata read code so that it supports both comma-separated lists and serialized arrays.

Fixes #40569
This commit is contained in:
Néstor Soriano 2024-06-11 20:23:28 +02:00 committed by GitHub
parent dc5ad32fb7
commit e64f7b31bc
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2 changed files with 31 additions and 9 deletions

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@ -0,0 +1,4 @@
Significance: patch
Type: fix
Make coupon metadata read robust against wrongly stored product related metadata

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@ -118,7 +118,8 @@ class WC_Coupon_Data_Store_CPT extends WC_Data_Store_WP implements WC_Coupon_Dat
throw new Exception( __( 'Invalid coupon.', 'woocommerce' ) );
}
$coupon_id = $coupon->get_id();
$coupon_id = $coupon->get_id();
$limit_usage_to_x_items = get_post_meta( $coupon_id, 'limit_usage_to_x_items', true );
$coupon->set_props(
array(
'code' => $post_object->post_title,
@ -131,11 +132,11 @@ class WC_Coupon_Data_Store_CPT extends WC_Data_Store_WP implements WC_Coupon_Dat
'amount' => get_post_meta( $coupon_id, 'coupon_amount', true ),
'usage_count' => get_post_meta( $coupon_id, 'usage_count', true ),
'individual_use' => 'yes' === get_post_meta( $coupon_id, 'individual_use', true ),
'product_ids' => array_filter( (array) explode( ',', get_post_meta( $coupon_id, 'product_ids', true ) ) ),
'excluded_product_ids' => array_filter( (array) explode( ',', get_post_meta( $coupon_id, 'exclude_product_ids', true ) ) ),
'product_ids' => $this->get_coupon_meta_as_array( $coupon_id, 'product_ids' ),
'excluded_product_ids' => $this->get_coupon_meta_as_array( $coupon_id, 'exclude_product_ids' ),
'usage_limit' => get_post_meta( $coupon_id, 'usage_limit', true ),
'usage_limit_per_user' => get_post_meta( $coupon_id, 'usage_limit_per_user', true ),
'limit_usage_to_x_items' => 0 < get_post_meta( $coupon_id, 'limit_usage_to_x_items', true ) ? get_post_meta( $coupon_id, 'limit_usage_to_x_items', true ) : null,
'limit_usage_to_x_items' => $limit_usage_to_x_items > 0 ? $limit_usage_to_x_items : null,
'free_shipping' => 'yes' === get_post_meta( $coupon_id, 'free_shipping', true ),
'product_categories' => array_filter( (array) get_post_meta( $coupon_id, 'product_categories', true ) ),
'excluded_product_categories' => array_filter( (array) get_post_meta( $coupon_id, 'exclude_product_categories', true ) ),
@ -151,6 +152,24 @@ class WC_Coupon_Data_Store_CPT extends WC_Data_Store_WP implements WC_Coupon_Dat
do_action( 'woocommerce_coupon_loaded', $coupon );
}
/**
* Get a metadata value that is stored as either a string consisting of a comma-separated list of values
* or as a serialized array.
*
* WooCommerce always stores the coupon product ids as a comma-separated string, but it seems that
* some plugins mistakenly change these to an array.
*
* @param int $coupon_id The coupon id.
* @param string $meta_key The meta key to get.
* @return array The metadata value as an array, with empty values removed.
*/
private function get_coupon_meta_as_array( $coupon_id, string $meta_key ) {
$meta_value = get_post_meta( $coupon_id, $meta_key, true );
return array_filter(
is_array( $meta_value ) ? $meta_value : explode( ',', $meta_value )
);
}
/**
* Updates a coupon in the database.
*
@ -446,7 +465,7 @@ class WC_Coupon_Data_Store_CPT extends WC_Data_Store_WP implements WC_Coupon_Dat
*/
public function get_usage_by_user_id( &$coupon, $user_id ) {
global $wpdb;
$usage_count = $wpdb->get_var(
$usage_count = $wpdb->get_var(
$wpdb->prepare(
"SELECT COUNT( meta_id ) FROM {$wpdb->postmeta} WHERE post_id = %d AND meta_key = '_used_by' AND meta_value = %s;",
$coupon->get_id(),
@ -467,7 +486,7 @@ class WC_Coupon_Data_Store_CPT extends WC_Data_Store_WP implements WC_Coupon_Dat
*/
public function get_usage_by_email( &$coupon, $email ) {
global $wpdb;
$usage_count = $wpdb->get_var(
$usage_count = $wpdb->get_var(
$wpdb->prepare(
"SELECT COUNT( meta_id ) FROM {$wpdb->postmeta} WHERE post_id = %d AND meta_key = '_used_by' AND meta_value = %s;",
$coupon->get_id(),
@ -491,7 +510,6 @@ class WC_Coupon_Data_Store_CPT extends WC_Data_Store_WP implements WC_Coupon_Dat
return $wpdb->get_var(
$this->get_tentative_usage_query_for_user( $coupon_id, $user_aliases )
); // WPCS: unprepared SQL ok.
}
/**
@ -643,8 +661,8 @@ class WC_Coupon_Data_Store_CPT extends WC_Data_Store_WP implements WC_Coupon_Dat
$query_for_tentative_usages = $this->get_tentative_usage_query_for_user( $coupon->get_id(), $user_aliases );
$db_timestamp = $wpdb->get_var( 'SELECT UNIX_TIMESTAMP() FROM ' . $wpdb->posts . ' LIMIT 1' );
$coupon_used_by_meta_key = '_maybe_used_by_' . ( (int) $db_timestamp + $held_time ) . '_' . wp_generate_password( 6, false );
$insert_statement = $wpdb->prepare(
$coupon_used_by_meta_key = '_maybe_used_by_' . ( (int) $db_timestamp + $held_time ) . '_' . wp_generate_password( 6, false );
$insert_statement = $wpdb->prepare(
"
INSERT INTO $wpdb->postmeta ( post_id, meta_key, meta_value )
SELECT %d, %s, %s FROM $wpdb->posts