tml_admin_handle_extension_licenses()

function tml_admin_handle_extension_licenses() {

    if ( ! tml_is_post_request() ) {
        return;
    }

    if ( tml_get_request_value( 'option_page' ) !== 'theme-my-login-licenses' ) {
        return;
    }

    check_admin_referer( 'theme-my-login-licenses-options' );

    if ( ! current_user_can( 'manage_options' ) ) {
        // phpcs:ignore WordPress.WP.I18n.MissingArgDomain, WordPress.Security.EscapeOutput.OutputNotEscaped -- reusing WP core's translated string verbatim (see wp-admin/options-general.php), not a TML-specific string.
        wp_die( __( 'Sorry, you are not allowed to manage options for this site.' ) );
    }

    // Loop through all extensions
    foreach ( tml_get_extensions() as $extension ) {

        // Handle license activations
        if ( isset( $_POST['tml_activate_license'][ $extension->get_name() ] ) ) {
            $response = tml_activate_extension_license( $extension );
            if ( $response ) {
                if ( is_wp_error( $response ) ) {
                    $extension->set_license_status();
                    add_settings_error(
                        'tml_activate_license',
                        $response->get_error_code(),
                        $response->get_error_message()
                    );
                } else {
                    $extension->set_license_status( $response );
                }
            }
        }

        // Handle license deactivations
        if ( isset( $_POST['tml_deactivate_license'][ $extension->get_name() ] ) ) {
            $response = tml_deactivate_extension_license( $extension );
            if ( $response ) {
                if ( is_wp_error( $response ) ) {
                    add_settings_error(
                        'tml_deactivate_license',
                        $response->get_error_code(),
                        $response->get_error_message()
                    );
                } else {
                    $extension->set_license_status();
                }
            }
        }
    }
}

View src/admin/extensions.php, line 133 on GitHub