class WEBrick::HTTPServlet::AbstractServlet

def self.get_instance(server, *options)
  self.new(server, *options)
end

def do_GET(req, res)
  raise HTTPStatus::NotFound, "not found."
end

def do_HEAD(req, res)
  do_GET(req, res)
end

def do_OPTIONS(req, res)
  m = self.methods.grep(/\Ado_([A-Z]+)\z/) {$1}
  m.sort!
  res["allow"] = m.join(",")
end

def initialize(server, *options)
  @server = @config = server
  @logger = @server[:Logger]
  @options = options
end

def redirect_to_directory_uri(req, res)
  if req.path[-1] != ?/
    location = WEBrick::HTTPUtils.escape_path(req.path + "/")
    if req.query_string && req.query_string.bytesize > 0
      location << "?" << req.query_string
    end
    res.set_redirect(HTTPStatus::MovedPermanently, location)
  end
end

def service(req, res)
  method_name = "do_" + req.request_method.gsub(/-/, "_")
  if respond_to?(method_name)
    __send__(method_name, req, res)
  else
    raise HTTPStatus::MethodNotAllowed,
          "unsupported method '#{req.request_method}'."
  end
end