#
# Enable rewrite engine (requires mod_rewrite)

RewriteEngine On
RewriteBase /

#
# Set %{ENV:PROTO} variable, to allow rewrites to redirect with the
# appropriate schema automatically (http or https).

RewriteCond %{HTTPS} =on
RewriteRule ^ - [env=proto:https]
RewriteCond %{HTTPS} !=on
RewriteRule ^ - [env=proto:http]

#
# Set %{ENV:ACCESSED_FROM}
#

RewriteRule ^ - [env=accessed_from:outside]

RewriteCond %{REMOTE_HOST} ^81\.143\.232\.70$
RewriteRule ^ - [env=accessed_from:office]

RewriteCond %{REMOTE_HOST} ^127\.0\.0\.1$ [OR]
RewriteCond %{REMOTE_HOST} ^::1$ [OR]
RewriteCond %{REMOTE_HOST} ^192\.168\.
RewriteRule ^ - [env=accessed_from:local]

#
# Redirect to domain if accessed from outside, no office, no local

RewriteCond %{ENV:ACCESSED_FROM} =outside
RewriteRule .(.*)$ /%{ENV:ACCESSED_FROM} [R=301,L]

#
# Rewrite to HTTPS

RewriteCond %{HTTPS} !=on
RewriteCond %{ENV:ACCESSED_FROM} !=local
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI}/%{ENV:ACCESSED_FROM} [R=301,L]