Current File : //lib/python2.7/site-packages/salt/serializers/configparser.py
# -*- coding: utf-8 -*-
'''
salt.serializers.configparser
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. versionadded:: 2016.3.0
Implements a configparser serializer.
'''
# Import Python libs
from __future__ import absolute_import, print_function, unicode_literals
# Import Salt Libs
from salt.ext import six
import salt.ext.six.moves.configparser as configparser # pylint: disable=E0611
from salt.serializers import DeserializationError, SerializationError
__all__ = ['deserialize', 'serialize', 'available']
available = True
def deserialize(stream_or_string, **options):
'''
Deserialize any string or stream like object into a Python data structure.
:param stream_or_string: stream or string to deserialize.
:param options: options given to lower configparser module.
'''
if six.PY3:
cp = configparser.ConfigParser(**options)
else:
cp = configparser.SafeConfigParser(**options)
try:
if not isinstance(stream_or_string, (bytes, six.string_types)):
if six.PY3:
cp.read_file(stream_or_string)
else:
cp.readfp(stream_or_string)
else:
if six.PY3:
cp.read_file(six.moves.StringIO(stream_or_string))
else:
# python2's ConfigParser cannot parse a config from a string
cp.readfp(six.moves.StringIO(stream_or_string))
data = {}
for section_name in cp.sections():
section = {}
for k, v in cp.items(section_name):
section[k] = v
data[section_name] = section
return data
except Exception as error:
raise DeserializationError(error)
def serialize(obj, **options):
'''
Serialize Python data to a configparser formatted string or file.
:param obj: the data structure to serialize
:param options: options given to lower configparser module.
'''
try:
if not isinstance(obj, dict):
raise TypeError("configparser can only serialize dictionaries, not {0}".format(type(obj)))
fp = options.pop('fp', None)
if six.PY3:
cp = configparser.ConfigParser(**options)
else:
cp = configparser.SafeConfigParser(**options)
_read_dict(cp, obj)
if fp:
return cp.write(fp)
else:
s = six.moves.StringIO()
cp.write(s)
return s.getvalue()
except Exception as error:
raise SerializationError(error)
def _is_defaultsect(section_name):
if six.PY3:
return section_name == configparser.DEFAULTSECT
else: # in py2 the check is done against lowercased section name
return section_name.upper() == configparser.DEFAULTSECT
def _read_dict(cp, dictionary):
'''
Cribbed from python3's ConfigParser.read_dict function.
'''
for section, keys in dictionary.items():
section = six.text_type(section)
if _is_defaultsect(section):
if six.PY2:
section = configparser.DEFAULTSECT
else:
cp.add_section(section)
for key, value in keys.items():
key = cp.optionxform(six.text_type(key))
if value is not None:
value = six.text_type(value)
cp.set(section, key, value)
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