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<?php
/**
* Personal data erasers.
*
* @since 3.4.0
* @package WooCommerce\Classes
*/
defined( 'ABSPATH' ) || exit;
/**
* WC_Privacy_Erasers Class.
*/
class WC_Privacy_Erasers {
/**
* Finds and erases customer data by email address.
*
* @since 3.4.0
* @param string $email_address The user email address.
* @param int $page Page.
* @return array An array of personal data in name value pairs
*/
public static function customer_data_eraser( $email_address, $page ) {
$response = array(
'items_removed' => false,
'items_retained' => false,
'messages' => array(),
'done' => true,
);
$user = get_user_by( 'email', $email_address ); // Check if user has an ID in the DB to load stored personal data.
if ( ! $user instanceof WP_User ) {
return $response;
}
$customer = new WC_Customer( $user->ID );
if ( ! $customer ) {
return $response;
}
$props_to_erase = apply_filters(
'woocommerce_privacy_erase_customer_personal_data_props',
array(
'billing_first_name' => __( 'Billing First Name', 'woocommerce' ),
'billing_last_name' => __( 'Billing Last Name', 'woocommerce' ),
'billing_company' => __( 'Billing Company', 'woocommerce' ),
'billing_address_1' => __( 'Billing Address 1', 'woocommerce' ),
'billing_address_2' => __( 'Billing Address 2', 'woocommerce' ),
'billing_city' => __( 'Billing City', 'woocommerce' ),
'billing_postcode' => __( 'Billing Postal/Zip Code', 'woocommerce' ),
'billing_state' => __( 'Billing State', 'woocommerce' ),
'billing_country' => __( 'Billing Country / Region', 'woocommerce' ),
'billing_phone' => __( 'Billing Phone Number', 'woocommerce' ),
'billing_email' => __( 'Email Address', 'woocommerce' ),
'shipping_first_name' => __( 'Shipping First Name', 'woocommerce' ),
'shipping_last_name' => __( 'Shipping Last Name', 'woocommerce' ),
'shipping_company' => __( 'Shipping Company', 'woocommerce' ),
'shipping_address_1' => __( 'Shipping Address 1', 'woocommerce' ),
'shipping_address_2' => __( 'Shipping Address 2', 'woocommerce' ),
'shipping_city' => __( 'Shipping City', 'woocommerce' ),
'shipping_postcode' => __( 'Shipping Postal/Zip Code', 'woocommerce' ),
'shipping_state' => __( 'Shipping State', 'woocommerce' ),
'shipping_country' => __( 'Shipping Country / Region', 'woocommerce' ),
'shipping_phone' => __( 'Shipping Phone Number', 'woocommerce' ),
),
$customer
);
foreach ( $props_to_erase as $prop => $label ) {
$erased = false;
if ( is_callable( array( $customer, 'get_' . $prop ) ) && is_callable( array( $customer, 'set_' . $prop ) ) ) {
$value = $customer->{"get_$prop"}( 'edit' );
if ( $value ) {
$customer->{"set_$prop"}( '' );
$erased = true;
}
}
$erased = apply_filters( 'woocommerce_privacy_erase_customer_personal_data_prop', $erased, $prop, $customer );
if ( $erased ) {
/* Translators: %s Prop name. */
$response['messages'][] = sprintf( __( 'Removed customer "%s"', 'woocommerce' ), $label );
$response['items_removed'] = true;
}
}
$customer->save();
/**
* Allow extensions to remove data for this customer and adjust the response.
*
* @since 3.4.0
* @param array $response Array response data. Must include messages, num_items_removed, num_items_retained, done.
* @param WC_Order $order A customer object.
*/
return apply_filters( 'woocommerce_privacy_erase_personal_data_customer', $response, $customer );
}
/**
* Finds and erases data which could be used to identify a person from WooCommerce data associated with an email address.
*
* Orders are erased in blocks of 10 to avoid timeouts.
*
* @since 3.4.0
* @param string $email_address The user email address.
* @param int $page Page.
* @return array An array of personal data in name value pairs
*/
public static function order_data_eraser( $email_address, $page ) {
$page = (int) $page;
$user = get_user_by( 'email', $email_address ); // Check if user has an ID in the DB to load stored personal data.
$erasure_enabled = wc_string_to_bool( get_option( 'woocommerce_erasure_request_removes_order_data', 'no' ) );
$response = array(
'items_removed' => false,
'items_retained' => false,
'messages' => array(),
'done' => true,
);
$order_query = array(
'limit' => 10,
'page' => $page,
'customer' => array( $email_address ),
);
if ( $user instanceof WP_User ) {
$order_query['customer'][] = (int) $user->ID;
}
$orders = wc_get_orders( $order_query );
if ( 0 < count( $orders ) ) {
foreach ( $orders as $order ) {
if ( apply_filters( 'woocommerce_privacy_erase_order_personal_data', $erasure_enabled, $order ) ) {
self::remove_order_personal_data( $order );
/* Translators: %s Order number. */
$response['messages'][] = sprintf( __( 'Removed personal data from order %s.', 'woocommerce' ), $order->get_order_number() );
$response['items_removed'] = true;
} else {
/* Translators: %s Order number. */
$response['messages'][] = sprintf( __( 'Personal data within order %s has been retained.', 'woocommerce' ), $order->get_order_number() );
$response['items_retained'] = true;
}
}
$response['done'] = 10 > count( $orders );
} else {
$response['done'] = true;
}
return $response;
}
/**
* Finds and removes customer download logs by email address.
*
* @since 3.4.0
* @param string $email_address The user email address.
* @param int $page Page.
* @return array An array of personal data in name value pairs
*/
public static function download_data_eraser( $email_address, $page ) {
$page = (int) $page;
$user = get_user_by( 'email', $email_address ); // Check if user has an ID in the DB to load stored personal data.
$erasure_enabled = wc_string_to_bool( get_option( 'woocommerce_erasure_request_removes_download_data', 'no' ) );
$response = array(
'items_removed' => false,
'items_retained' => false,
'messages' => array(),
'done' => true,
);
$downloads_query = array(
'limit' => -1,
'page' => $page,
'return' => 'ids',
);
if ( $user instanceof WP_User ) {
$downloads_query['user_id'] = (int) $user->ID;
} else {
$downloads_query['user_email'] = $email_address;
}
$customer_download_data_store = WC_Data_Store::load( 'customer-download' );
// Revoke download permissions.
if ( apply_filters( 'woocommerce_privacy_erase_download_personal_data', $erasure_enabled, $email_address ) ) {
if ( $user instanceof WP_User ) {
$result = $customer_download_data_store->delete_by_user_id( (int) $user->ID );
} else {
$result = $customer_download_data_store->delete_by_user_email( $email_address );
}
if ( $result ) {
$response['messages'][] = __( 'Removed access to downloadable files.', 'woocommerce' );
$response['items_removed'] = true;
}
} else {
$response['messages'][] = __( 'Customer download permissions have been retained.', 'woocommerce' );
$response['items_retained'] = true;
}
return $response;
}
/**
* Remove personal data specific to WooCommerce from an order object.
*
* Note; this will hinder order processing for obvious reasons!
*
* @param WC_Order $order Order object.
*/
public static function remove_order_personal_data( $order ) {
$anonymized_data = array();
/**
* Allow extensions to remove their own personal data for this order first, so order data is still available.
*
* @since 3.4.0
* @param WC_Order $order A customer object.
*/
do_action( 'woocommerce_privacy_before_remove_order_personal_data', $order );
/**
* Expose props and data types we'll be anonymizing.
*
* @since 3.4.0
* @param array $props Keys are the prop names, values are the data type we'll be passing to wp_privacy_anonymize_data().
* @param WC_Order $order A customer object.
*/
$props_to_remove = apply_filters(
'woocommerce_privacy_remove_order_personal_data_props',
array(
'customer_ip_address' => 'ip',
'customer_user_agent' => 'text',
'billing_first_name' => 'text',
'billing_last_name' => 'text',
'billing_company' => 'text',
'billing_address_1' => 'text',
'billing_address_2' => 'text',
'billing_city' => 'text',
'billing_postcode' => 'text',
'billing_state' => 'address_state',
'billing_country' => 'address_country',
'billing_phone' => 'phone',
'billing_email' => 'email',
'shipping_first_name' => 'text',
'shipping_last_name' => 'text',
'shipping_company' => 'text',
'shipping_address_1' => 'text',
'shipping_address_2' => 'text',
'shipping_city' => 'text',
'shipping_postcode' => 'text',
'shipping_state' => 'address_state',
'shipping_country' => 'address_country',
'shipping_phone' => 'phone',
'customer_id' => 'numeric_id',
'transaction_id' => 'numeric_id',
),
$order
);
if ( ! empty( $props_to_remove ) && is_array( $props_to_remove ) ) {
foreach ( $props_to_remove as $prop => $data_type ) {
// Get the current value in edit context.
$value = $order->{"get_$prop"}( 'edit' );
// If the value is empty, it does not need to be anonymized.
if ( empty( $value ) || empty( $data_type ) ) {
continue;
}
$anon_value = function_exists( 'wp_privacy_anonymize_data' ) ? wp_privacy_anonymize_data( $data_type, $value ) : '';
/**
* Expose a way to control the anonymized value of a prop via 3rd party code.
*
* @since 3.4.0
* @param string $anon_value Value of this prop after anonymization.
* @param string $prop Name of the prop being removed.
* @param string $value Current value of the data.
* @param string $data_type Type of data.
* @param WC_Order $order An order object.
*/
$anonymized_data[ $prop ] = apply_filters( 'woocommerce_privacy_remove_order_personal_data_prop_value', $anon_value, $prop, $value, $data_type, $order );
}
}
// Set all new props and persist the new data to the database.
$order->set_props( $anonymized_data );
// Remove meta data.
$meta_to_remove = apply_filters(
'woocommerce_privacy_remove_order_personal_data_meta',
array(
'Payer first name' => 'text',
'Payer last name' => 'text',
'Payer PayPal address' => 'email',
'Transaction ID' => 'numeric_id',
)
);
if ( ! empty( $meta_to_remove ) && is_array( $meta_to_remove ) ) {
foreach ( $meta_to_remove as $meta_key => $data_type ) {
$value = $order->get_meta( $meta_key );
// If the value is empty, it does not need to be anonymized.
if ( empty( $value ) || empty( $data_type ) ) {
continue;
}
$anon_value = function_exists( 'wp_privacy_anonymize_data' ) ? wp_privacy_anonymize_data( $data_type, $value ) : '';
/**
* Expose a way to control the anonymized value of a value via 3rd party code.
*
* @since 3.4.0
* @param string $anon_value Value of this data after anonymization.
* @param string $prop meta_key key being removed.
* @param string $value Current value of the data.
* @param string $data_type Type of data.
* @param WC_Order $order An order object.
*/
$anon_value = apply_filters( 'woocommerce_privacy_remove_order_personal_data_meta_value', $anon_value, $meta_key, $value, $data_type, $order );
if ( $anon_value ) {
$order->update_meta_data( $meta_key, $anon_value );
} else {
$order->delete_meta_data( $meta_key );
}
}
}
$order->update_meta_data( '_anonymized', 'yes' );
$order->save();
// Delete order notes which can contain PII.
$notes = wc_get_order_notes(
array(
'order_id' => $order->get_id(),
)
);
foreach ( $notes as $note ) {
wc_delete_order_note( $note->id );
}
// Add note that this event occurred.
$order->add_order_note( __( 'Personal data removed.', 'woocommerce' ) );
/**
* Allow extensions to remove their own personal data for this order.
*
* @since 3.4.0
* @param WC_Order $order A customer object.
*/
do_action( 'woocommerce_privacy_remove_order_personal_data', $order );
}
/**
* Finds and erases customer tokens by email address.
*
* @since 3.4.0
* @param string $email_address The user email address.
* @param int $page Page.
* @return array An array of personal data in name value pairs
*/
public static function customer_tokens_eraser( $email_address, $page ) {
$response = array(
'items_removed' => false,
'items_retained' => false,
'messages' => array(),
'done' => true,
);
$user = get_user_by( 'email', $email_address ); // Check if user has an ID in the DB to load stored personal data.
if ( ! $user instanceof WP_User ) {
return $response;
}
$tokens = WC_Payment_Tokens::get_tokens(
array(
'user_id' => $user->ID,
)
);
if ( empty( $tokens ) ) {
return $response;
}
foreach ( $tokens as $token ) {
WC_Payment_Tokens::delete( $token->get_id() );
/* Translators: %s Prop name. */
$response['messages'][] = sprintf( __( 'Removed payment token "%d"', 'woocommerce' ), $token->get_id() );
$response['items_removed'] = true;
}
/**
* Allow extensions to remove data for tokens and adjust the response.
*
* @since 3.4.0
* @param array $response Array response data. Must include messages, num_items_removed, num_items_retained, done.
* @param array $tokens Array of tokens.
*/
return apply_filters( 'woocommerce_privacy_erase_personal_data_tokens', $response, $tokens );
}
}