# OBJET : Setup of .htaccess file in apache
# NOTE  : the file should be named .htaccess (il it not possible to name such file in windows : name it htaccess.txt, transfer it via ftp to server and rename it .htaccess)
# DATE  : 2020.04

# To set up permanent redirection : (1.1.) OR (1.2) (but not both) and not (2)
# To force www and https : (2.1) AND (2.2) but not (1)

# (1) Permanent redirection

# (1.1) Redirection of www.example.com to www.example.com/go/
# RedirectMatch permanent ^/$ https://www.example.com/go/  # Note : No redirection of subfolder i.e. do not redirect www.example.com/test

# (1.2) Redirection of www.example.com to www.google.com
# RedirectMatch permanent ^(.*)$ https://www.google.com    # Note : Including redirection of subfolder i.e. www.example.com/test
# RedirectMatch permanent ^/$ https://www.google.com       # Note : No redirection of subfolder i.e. do not redirect www.example.com/test

# (2) To force www and (3.2) to redirect http:// to https://
RewriteEngine on

# (2.1) To force www on domain only but not subdomains
# Note : Use only one RewiteCond Condeline (i.e. A OR B OR C) and comment out the two other ones
# Note : Keep always the RewriteRule line active
RewriteCond %{HTTP_HOST} ^[^.]+\.[^.]+$ [NC]       # Alternative for domain .xxx (whatever the .xxx) but no subdomain
# RewriteCond %{HTTP_HOST} ^[^.]+\.com$ [NC]       # Alternative for domain .com only (but not .fr) but not subdomain
# RewriteCond %{HTTP_HOST} ^[^.]+\.co+\.uk$ [NC]   # Alternative for domain .co.uk only (but not .com) but not subdomain
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L,NE,QSA]

# (2.2) To redirect http:// to https:// (i.e. to force SLL)
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L,NE,QSA]   # Note : Including with subfolder


# FOR INFORMATION regarding teh [flags] at the end of the line :
# - NC (No Case) : no case sensitive
# - L (last) : Last command, i.e. after L, the run is stopped.
# - NE (No Escape) : no conversion of special characters
    Note : Special characters are otherwise - without NE - converted by default
# - QSA (QS Append) : to keep argument in the redirection

# For more information on .htacess [flags], see :
# https://httpd.apache.org/docs/2.4/en/rewrite/flags.html