常時SSLリダイレクト
RewriteEngine on
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
一部ディレクトリを除いたリダイレクト設定
RewriteEngine on
RewriteCond %{HTTPS} off
RewriteCond %{REQUEST_URI} !^/sample/
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
RewriteCond %{HTTPS} on
RewriteCond %{REQUEST_URI} ^/sample/
RewriteRule ^(.*)$ http://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]