# File lib_wpm/wpm.rb, line 659
    def write_access(status, environ, params)
      timestamp = Time.now.gmtime.to_s
      rhost = environ['REMOTE_ADDR']
      if (environ.include? 'REMOTE_HOST') then
        rhost += ' '
        rhost += environ['REMOTE_HOST']
      end
      method = environ['REQUEST_METHOD']
      page = environ['PATH_INFO']
      if (method != 'POST') then
        query = params.map{ |name, value| "#{name}=#{value}" }.join('&')
        unless (query.empty?) then
          page += '?'
          page += query
        end
      end
      user_agent = environ['HTTP_USER_AGENT']
      referer = environ['HTTP_REFERER']
      if (referer) then
        referer = Escape.unescapeURL(referer)
        referer = @input_filter.call(referer)
      end

      log = "#{timestamp}: [#{rhost}] #{method} #{page} - #{status}: #{user_agent} < #{referer}\n"
      File.open(@filename, 'a') { |output|
        output.print @output_filter.call(log)
      }

      nil
    end