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# Copyright (c) 2012 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import json
import logging
import urlparse
from sdk_update_common import Error
SOURCE_WHITELIST = [
'http://localhost/', # For testing.
'https://storage.googleapis.com/nativeclient-mirror/nacl/nacl_sdk',
]
def IsSourceValid(url):
# E1101: Instance of 'ParseResult' has no 'scheme' member
# pylint: disable=E1101
given = urlparse.urlparse(url)
for allowed_url in SOURCE_WHITELIST:
allowed = urlparse.urlparse(allowed_url)
if (given.scheme == allowed.scheme and
given.hostname == allowed.hostname and
given.path.startswith(allowed.path)):
return True
return False
class Config(dict):
def __init__(self, data=None):
dict.__init__(self)
if data:
self.update(data)
else:
self.sources = []
def LoadJson(self, json_data):
try:
self.update(json.loads(json_data))
except Exception as e:
raise Error('Error reading json config:\n%s' % str(e))
def ToJson(self):
try:
return json.dumps(self, sort_keys=False, indent=2)
except Exception as e:
raise Error('Json encoding error writing config:\n%s' % e)
def __getattr__(self, name):
if name in self:
return self[name]
else:
raise AttributeError('Config does not contain: %s' % name)
def __setattr__(self, name, value):
self[name] = value
def AddSource(self, source):
if not IsSourceValid(source):
logging.warn('Only whitelisted sources are allowed. Ignoring \"%s\".' % (
source,))
return
if source in self.sources:
logging.info('Source \"%s\" already in Config.' % (source,))
return
self.sources.append(source)
def RemoveSource(self, source):
if source not in self.sources:
logging.warn('Source \"%s\" not in Config.' % (source,))
return
self.sources.remove(source)
def RemoveAllSources(self):
if not self.sources:
logging.info('No sources to remove.')
return
self.sources = []
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