Magento - how to restrict access to a website for certain countries?

Question

Magento

Good afternoon.
We have a website that has the following architecture:
- website1 { -store1; -store2; -store3; -store4; -store5}
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- website 2 { -store1; -store2; -store3; -store4; -store5 }
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- website3 {-store1; -store2; -store3; -store4; -store5 }
And we want certain countries to have access to a certain website and all of its stores. For example:
Residents of the UK should have access to website1 and all its stores (store1, store2, store3, store4, store5), well, not have access to other websites ( website 2, website 3).
Residents of FR should be able to access website2 and all of its stores (store1, store2, store3, store4, store5), well not have access to other websites ( website 1, website 3).
Residents of DE should have access to website3 and all of its stores (store1, store2, store3, store4, store5), well not access to other websites ( website 1, website 2).
I tried installing the Geo Ip module, but it does not solve the problem, as it may restrict access of a certain country to the store only, but other stores of this website will not be available.
Maybe someone faced such a problem?

Answer 1

In Nginx or Apache, set the website variable based on GeoIP , use
this variable in index.php to load the store you need

$website = isset($_SERVER['WEBSITE']) ? $_SERVER['WEBSITE'] : '';
Mage::run($website , 'website');

Answer 2

It is easier to implement on geoip in nginx for each store separately.