text: #!/usr/bin/python
  
  # Copyright 2013 Joe Walnes and the websocketd team.
  # All rights reserved.
  # Use of this source code is governed by a BSD-style
  # license that can be found in the LICENSE file.
  
  import os
  from sys import stdout
  
  # Standard CGI(ish) environment variables, as defined in
  # http://tools.ietf.org/html/rfc3875
  var_names = [
    'AUTH_TYPE',
    'CONTENT_LENGTH',
    'CONTENT_TYPE',
    'GATEWAY_INTERFACE',
    'PATH_INFO',
    'PATH_TRANSLATED',
    'QUERY_STRING',
    'REMOTE_ADDR',
    'REMOTE_HOST',
    'REMOTE_IDENT',
    'REMOTE_PORT',
    'REMOTE_USER',
    'REQUEST_METHOD',
    'REQUEST_URI',
    'SCRIPT_NAME',
    'SERVER_NAME',
    'SERVER_PORT',
    'SERVER_PROTOCOL',
    'SERVER_SOFTWARE',
    'UNIQUE_ID'
  ]
  for var_name in var_names:
    print '%s=%s' % (var_name, os.environ.get(var_name, '<unset>'))
    stdout.flush() # Remember to flush
  
  # Additional HTTP headers
  for var_name in os.environ:
    if var_name.startswith('HTTP_'):
      print '%s=%s' % (var_name, os.environ[var_name])
      stdout.flush() # Remember to flush
  