ref: 11b5c4b8bf0a15777e9a7f2292f6c80f5a7b4a2d dir: /rc/bin/rc-httpd/handlers/authorize/
#!/bin/rc if(~ $REMOTE_USER ''){ extra_headers=($extra_headers 'WWW-Authenticate: Basic realm="'$"SERVER_NAME'"') error 401 exit }