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# Copyright (c) 2010-2013 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import six
import sys
from six.moves.configparser import ConfigParser, RawConfigParser
from six.moves.urllib.parse import urlparse
from six.moves.urllib.request import getproxies, proxy_bypass
# Used when reading config values
TRUE_VALUES = set(('true', '1', 'yes', 'on', 't', 'y'))
# NOTE(chmouel): Imported from swift without the modular directory feature.
def readconf(conf_path, section_name=None, log_name=None, defaults=None,
raw=False):
"""
Read config file(s) and return config items as a dict
:param conf_path: path to config file, or a file-like object
(hasattr readline)
:param section_name: config section to read (will return all sections if
not defined)
:param log_name: name to be used with logging (will use section_name if
not defined)
:param defaults: dict of default values to pre-populate the config with
:returns: dict of config items
"""
if defaults is None:
defaults = {}
if raw:
c = RawConfigParser(defaults)
else:
c = ConfigParser(defaults)
if hasattr(conf_path, 'readline'):
c.readfp(conf_path)
else:
success = c.read(conf_path)
if not success:
print("Unable to read config from %s" % conf_path)
sys.exit(1)
if section_name:
if c.has_section(section_name):
conf = dict(c.items(section_name))
else:
print("Unable to find %s config section in %s" %
(section_name, conf_path))
sys.exit(1)
if "log_name" not in conf:
if log_name is not None:
conf['log_name'] = log_name
else:
conf['log_name'] = section_name
else:
conf = {}
for s in c.sections():
conf.update({s: dict(c.items(s))})
if 'log_name' not in conf:
conf['log_name'] = log_name
conf['__file__'] = conf_path
return conf
def config_true_value(value):
"""
Returns True if the value is either True or a string in TRUE_VALUES.
Returns False otherwise.
"""
return value is True or \
(isinstance(value, six.string_types) and value.lower() in TRUE_VALUES)
def using_http_proxy(url):
"""
Return True if the url will use HTTP proxy.
Returns False otherwise.
"""
up = urlparse(url)
return up.scheme.lower() in getproxies() and not proxy_bypass(up.netloc)
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