Gaiaz Iusipov

Simplest plugin that redirects unauthorized users to login page. 
Don’t need any configuration at all.

Site Private

Simplest plugin that redirects unauthorized users to login page.

renemanqueros

Allows customers to pay using several payment gateways: 
* Authorize.net – Credit card only. 
* PayU (Latin America) – Credit card + offline payments on 7-Eleven, Oxxo’s.
<h3>Hooks</h3>
Two hooks are exposed, for a basic workflow in which the order needs to be marked as complete or users will send a 
receipt for offline payments, these hooks are not needed, they are meant for more complex and custom workflows.
<ul>
<li>gp_order_online_completed_successfully – This hook is triggered when the payment is completed. Sends an array with 
the gateway’s response information and the order ID to the callback.</li>
<li>gp_error_occurred – This hook is triggered when an error occurs during the payment process. Sends the exception 
to the callback.</li>
</ul>

WooCommerce Payment gateways

Allows customers to pay using several payment gateways.

Site Private vs WooCommerce Payment gateways