Source
File: wp-admin/includes/privacy-tools.php
function wp_privacy_process_personal_data_export_page( $response, $exporter_index, $email_address, $page, $request_id, $send_as_email, $exporter_key ) {
/* Do some simple checks on the shape of the response from the exporter.
* If the exporter response is malformed, don't attempt to consume it - let it
* pass through to generate a warning to the user by default Ajax processing.
*/
if ( ! is_array( $response ) ) {
return $response;
}
if ( ! array_key_exists( 'done', $response ) ) {
return $response;
}
if ( ! array_key_exists( 'data', $response ) ) {
return $response;
}
if ( ! is_array( $response['data'] ) ) {
return $response;
}
// Get the request.
$request = wp_get_user_request( $request_id );
if ( ! $request || 'export_personal_data' !== $request->action_name ) {
wp_send_json_error( __( 'Invalid request ID when merging exporter data.' ) );
}
$export_data = array();
// First exporter, first page? Reset the report data accumulation array.
if ( 1 === $exporter_index && 1 === $page ) {
update_post_meta( $request_id, '_export_data_raw', $export_data );
} else {
$export_data = get_post_meta( $request_id, '_export_data_raw', true );
}
// Now, merge the data from the exporter response into the data we have accumulated already.
$export_data = array_merge( $export_data, $response['data'] );
update_post_meta( $request_id, '_export_data_raw', $export_data );
// If we are not yet on the last page of the last exporter, return now.
/** This filter is documented in wp-admin/includes/ajax-actions.php */
$exporters = apply_filters( 'wp_privacy_personal_data_exporters', array() );
$is_last_exporter = count( $exporters ) === $exporter_index;
$exporter_done = $response['done'];
if ( ! $is_last_exporter || ! $exporter_done ) {
return $response;
}
// Last exporter, last page - let's prepare the export file.
// First we need to re-organize the raw data hierarchically in groups and items.
$groups = array();
foreach ( (array) $export_data as $export_datum ) {
$group_id = $export_datum['group_id'];
$group_label = $export_datum['group_label'];
$group_description = '';
if ( ! empty( $export_datum['group_description'] ) ) {
$group_description = $export_datum['group_description'];
}
if ( ! array_key_exists( $group_id, $groups ) ) {
$groups[ $group_id ] = array(
'group_label' => $group_label,
'group_description' => $group_description,
'items' => array(),
);
}
$item_id = $export_datum['item_id'];
if ( ! array_key_exists( $item_id, $groups[ $group_id ]['items'] ) ) {
$groups[ $group_id ]['items'][ $item_id ] = array();
}
$old_item_data = $groups[ $group_id ]['items'][ $item_id ];
$merged_item_data = array_merge( $export_datum['data'], $old_item_data );
$groups[ $group_id ]['items'][ $item_id ] = $merged_item_data;
}
// Then save the grouped data into the request.
delete_post_meta( $request_id, '_export_data_raw' );
update_post_meta( $request_id, '_export_data_grouped', $groups );
/**
* Generate the export file from the collected, grouped personal data.
*
* @since 4.9.6
*
* @param int $request_id The export request ID.
*/
do_action( 'wp_privacy_personal_data_export_file', $request_id );
// Clear the grouped data now that it is no longer needed.
delete_post_meta( $request_id, '_export_data_grouped' );
// If the destination is email, send it now.
if ( $send_as_email ) {
$mail_success = wp_privacy_send_personal_data_export_email( $request_id );
if ( is_wp_error( $mail_success ) ) {
wp_send_json_error( $mail_success->get_error_message() );
}
// Update the request to completed state when the export email is sent.
_wp_privacy_completed_request( $request_id );
} else {
// Modify the response to include the URL of the export file so the browser can fetch it.
$exports_url = wp_privacy_exports_url();
$export_file_name = get_post_meta( $request_id, '_export_file_name', true );
$export_file_url = $exports_url . $export_file_name;
if ( ! empty( $export_file_url ) ) {
$response['url'] = $export_file_url;
}
}
return $response;
}