SetEnvIfNoCase "Authorization" "(.*)" HTTP_AUTHORIZATION=$1 SetEnvIfNoCase "Authorization" "^GoogleLogin auth=([^/]+)" REMOTE_USER=$1 LOG_REMOTE_USER=$1 RewriteEngine on RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}] RewriteCond %{HTTP:Authorization} "^GoogleLogin auth=([^/]+)" [NC] RewriteRule .* - [E=REMOTE_USER:%1,E=LOG_REMOTE_USER:%1]