server.username  = "www-data"
server.groupname = "www-data"

[... etc. ...]

$HTTP["url"] =~ "^/webdav/" {
  webdav.activate                = "enable"
  webdav.is-readonly             = "disable"
  webdav.sqlite-db-name          = "/var/www/etc/lighttpd.webdav.db"
  auth.backend                   = "htpasswd"
  auth.backend.htpasswd.userfile = "/var/www/etc/.htaccess"
  auth.require                   = (
    "" => ( "method"  => "basic",
            "realm"   => "Restricted.",
            "require" => "valid-user"
          )
  )
}