_wp_personal_data_handle_actions()

function _wp_personal_data_handle_actions() {
	if ( isset( $_POST['privacy_action_email_retry'] ) ) {
		check_admin_referer( 'bulk-privacy_requests' );

		$request_id = absint( current( array_keys( (array) wp_unslash( $_POST['privacy_action_email_retry'] ) ) ) );
		$result     = _wp_privacy_resend_request( $request_id );

		if ( is_wp_error( $result ) ) {
			add_settings_error(
				'privacy_action_email_retry',
				'privacy_action_email_retry',
				$result->get_error_message(),
				'error'
			);
		} else {
			add_settings_error(
				'privacy_action_email_retry',
				'privacy_action_email_retry',
				__( 'Confirmation request sent again successfully.' ),
				'updated'
			);
		}
	} elseif ( isset( $_POST['action'] ) ) {
		$action = isset( $_POST['action'] ) ? sanitize_key( wp_unslash( $_POST['action'] ) ) : '';

		switch ( $action ) {
			case 'add_export_personal_data_request':
			case 'add_remove_personal_data_request':
				check_admin_referer( 'personal-data-request' );

				if ( ! isset( $_POST['type_of_action'], $_POST['username_or_email_for_privacy_request'] ) ) {
					add_settings_error(
						'action_type',
						'action_type',
						__( 'Invalid action.' ),
						'error'
					);
				}
				$action_type               = sanitize_text_field( wp_unslash( $_POST['type_of_action'] ) );
				$username_or_email_address = sanitize_text_field( wp_unslash( $_POST['username_or_email_for_privacy_request'] ) );
				$email_address             = '';

				if ( ! in_array( $action_type, _wp_privacy_action_request_types(), true ) ) {
					add_settings_error(
						'action_type',
						'action_type',
						__( 'Invalid action.' ),
						'error'
					);
				}

				if ( ! is_email( $username_or_email_address ) ) {
					$user = get_user_by( 'login', $username_or_email_address );
					if ( ! $user instanceof WP_User ) {
						add_settings_error(
							'username_or_email_for_privacy_request',
							'username_or_email_for_privacy_request',
							__( 'Unable to add this request. A valid email address or username must be supplied.' ),
							'error'
						);
					} else {
						$email_address = $user->user_email;
					}
				} else {
					$email_address = $username_or_email_address;
				}

				if ( empty( $email_address ) ) {
					break;
				}

				$request_id = wp_create_user_request( $email_address, $action_type );

				if ( is_wp_error( $request_id ) ) {
					add_settings_error(
						'username_or_email_for_privacy_request',
						'username_or_email_for_privacy_request',
						$request_id->get_error_message(),
						'error'
					);
					break;
				} elseif ( ! $request_id ) {
					add_settings_error(
						'username_or_email_for_privacy_request',
						'username_or_email_for_privacy_request',
						__( 'Unable to initiate confirmation request.' ),
						'error'
					);
					break;
				}

				wp_send_user_request( $request_id );

				add_settings_error(
					'username_or_email_for_privacy_request',
					'username_or_email_for_privacy_request',
					__( 'Confirmation request initiated successfully.' ),
					'updated'
				);
				break;
		}
	}
}