1# Copyright 2015 The Chromium OS Authors. All rights reserved. 2# Use of this source code is governed by a BSD-style license that can be 3# found in the LICENSE file. 4 5import cherrypy 6 7 8META_HANDLER_PATH = 'meta' 9 10 11class MetaHandler(object): 12 """Exposes meta methods related to the server.""" 13 14 # Needed for cherrypy to expose this to requests. 15 exposed = True 16 17 def __init__(self, generation): 18 """Construct an instance. 19 20 @param generation: string unique token for this server (e.g. a UUID). 21 22 """ 23 self._generation = generation 24 25 def GET(self, *args, **kwargs): 26 """Handle GET requests to this URL.""" 27 if ['generation'] == list(args): 28 return self._generation 29 cherrypy.response.status = 400 30 return '' 31