native_client_sdk/src/build_tools/sdk_tools/config.py

   1 # Copyright (c) 2012 The Chromium 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
   5 import json
   6 import logging
   7 import urlparse
   8
   9 SOURCE_WHITELIST = [
  10   'http://localhost/',  # For testing.
  11   'https://commondatastorage.googleapis.com/nativeclient-mirror/nacl/nacl_sdk',
  12 ]
  13
  14 def IsSourceValid(url):
  15   # E1101: Instance of 'ParseResult' has no 'scheme' member
  16   # pylint: disable=E1101
  17
  18   given = urlparse.urlparse(url)
  19   for allowed_url in SOURCE_WHITELIST:
  20     allowed = urlparse.urlparse(allowed_url)
  21     if (given.scheme == allowed.scheme and
  22         given.hostname == allowed.hostname and
  23         given.path.startswith(allowed.path)):
  24       return True
  25   return False
  26
  27
  28 class Config(dict):
  29   def __init__(self, data=None):
  30     dict.__init__(self)
  31     if data:
  32       self.update(data)
  33     else:
  34       self.sources = []
  35
  36   def ToJson(self):
  37     return json.dumps(self, sort_keys=False, indent=2)
  38
  39   def __getattr__(self, name):
  40     return self.__getitem__(name)
  41
  42   def __setattr__(self, name, value):
  43     return self.__setitem__(name, value)
  44
  45   def AddSource(self, source):
  46     if not IsSourceValid(source):
  47       logging.warn('Only whitelisted sources are allowed. Ignoring \"%s\".' % (
  48           source,))
  49       return
  50
  51     if source in self.sources:
  52       logging.info('Source \"%s\" already in Config.' % (source,))
  53       return
  54     self.sources.append(source)
  55
  56   def RemoveSource(self, source):
  57     if source not in self.sources:
  58       logging.warn('Source \"%s\" not in Config.' % (source,))
  59       return
  60     self.sources.remove(source)
  61
  62   def RemoveAllSources(self):
  63     if not self.sources:
  64       logging.info('No sources to remove.')
  65       return
  66     self.sources = []