libervia-backend/src/tools/config.py

99 lines
4.2 KiB
Python

#!/usr/bin/python
# -*- coding: utf-8 -*-
# SAT: a jabber client
# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (goffi@goffi.org)
# Copyright (C) 2013, 2014, 2015 Adrien Cossa (souliane@mailoo.org)
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
""" Configuration related useful methods """
from sat.core.log import getLogger
log = getLogger(__name__)
from sat.core.constants import Const as C
from sat.core.i18n import _
from ConfigParser import SafeConfigParser, DEFAULTSECT, NoOptionError, NoSectionError
from xdg import BaseDirectory
import os
import csv
def fixConfigOption(section, option, value, silent=True):
"""Force a configuration option value, writing it in the first found user
config file, eventually creating a new user config file if none is found.
@param section (str): the config section
@param option (str): the config option
@param value (str): the new value
@param silent (boolean): toggle logging output (must be True when called from sat.sh)
"""
config = SafeConfigParser()
target_file = None
for file_ in C.CONFIG_FILES[::-1]:
# we will eventually update the existing file with the highest priority, if it's a user personal file...
if not silent:
log.debug(_(u"Testing file %s") % file_)
if os.path.isfile(file_):
if file_.startswith(os.path.expanduser('~')):
config.read([file_])
target_file = file_
break
if not target_file:
# ... otherwise we create a new config file for that user
target_file = BaseDirectory.save_config_path('sat') + '/sat.conf'
if section and section.upper() != DEFAULTSECT and not config.has_section(section):
config.add_section(section)
config.set(section, option, value)
with open(target_file, 'wb') as configfile:
config.write(configfile) # for the next time that user launches sat
if not silent:
if option in ('passphrase',): # list here the options storing a password
value = '******'
log.warning(_(u"Config auto-update: %(option)s set to %(value)s in the file %(config_file)s") %
{'option': option, 'value': value, 'config_file': target_file})
def getConfig(config, section, name, default=None):
"""Get a configuration option
@param config (SafeConfigParser): the configuration instance
@param section (str): section of the config file (None or '' for DEFAULT)
@param name (str): name of the option
@param default: value to use if not found, or Exception to raise an exception
@return: str, list or dict
@raise: NoOptionError if option is not present and default is Exception
NoSectionError if section doesn't exists and default is Exception
"""
if not section:
section = DEFAULTSECT
try:
value = config.get(section, name)
except (NoOptionError, NoSectionError) as e:
if default is Exception:
raise e
return default
if name.endswith('_path') or name.endswith('_dir'):
value = os.path.expanduser(value)
# thx to Brian (http://stackoverflow.com/questions/186857/splitting-a-semicolon-separated-string-to-a-dictionary-in-python/186873#186873)
elif name.endswith('_list'):
value = csv.reader([value], delimiter=',', quotechar='"', skipinitialspace=True).next()
elif name.endswith('_dict'):
value = dict(csv.reader([item], delimiter=':', quotechar='"', skipinitialspace=True).next()
for item in csv.reader([value], delimiter=',', quotechar='"', skipinitialspace=True).next())
return value