143 lines
5 KiB
Python
143 lines
5 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright(C) 2010-2011 Romain Bignon
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#
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# This file is part of weboob.
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#
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# weboob is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# weboob is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with weboob. If not, see <http://www.gnu.org/licenses/>.
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import stat
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import os
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import sys
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try:
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from ConfigParser import RawConfigParser, DuplicateSectionError
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except ImportError:
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from configparser import RawConfigParser, DuplicateSectionError
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from logging import warning
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__all__ = ['BackendsConfig', 'BackendAlreadyExists']
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class BackendAlreadyExists(Exception):
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pass
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class BackendsConfig(object):
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class WrongPermissions(Exception):
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pass
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def __init__(self, confpath):
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self.confpath = confpath
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try:
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mode = os.stat(confpath).st_mode
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except OSError:
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if not os.path.isdir(os.path.dirname(confpath)):
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os.makedirs(os.path.dirname(confpath))
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if sys.platform == 'win32':
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fptr = open(confpath, 'w')
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fptr.close()
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else:
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try:
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fd = os.open(confpath, os.O_WRONLY | os.O_CREAT, 0o600)
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os.close(fd)
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except OSError:
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fptr = open(confpath, 'w')
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fptr.close()
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os.chmod(confpath, 0o600)
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else:
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if sys.platform != 'win32':
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if mode & stat.S_IRGRP or mode & stat.S_IROTH:
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raise self.WrongPermissions(
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u'Weboob will not start as long as config file %s is readable by group or other users.' % confpath)
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def iter_backends(self):
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config = RawConfigParser()
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config.read(self.confpath)
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changed = False
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for backend_name in config.sections():
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params = dict(config.items(backend_name))
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try:
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module_name = params.pop('_module')
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except KeyError:
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try:
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module_name = params.pop('_backend')
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config.set(backend_name, '_module', module_name)
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config.remove_option(backend_name, '_backend')
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changed = True
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except KeyError:
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warning('Missing field "_module" for configured backend "%s"', backend_name)
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continue
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yield backend_name, module_name, params
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if changed:
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with open(self.confpath, 'wb') as f:
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config.write(f)
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def backend_exists(self, name):
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"""
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Return True if the backend exists in config.
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"""
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config = RawConfigParser()
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config.read(self.confpath)
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return name in config.sections()
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def add_backend(self, backend_name, module_name, params, edit=False):
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if not backend_name:
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raise ValueError(u'Please give a name to the configured backend.')
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config = RawConfigParser()
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config.read(self.confpath)
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if not edit:
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try:
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config.add_section(backend_name)
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except DuplicateSectionError:
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raise BackendAlreadyExists(backend_name)
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config.set(backend_name, '_module', module_name)
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for key, value in params.iteritems():
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if isinstance(value, unicode):
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value = value.encode('utf-8')
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config.set(backend_name, key, value)
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with open(self.confpath, 'wb') as f:
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config.write(f)
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def edit_backend(self, backend_name, module_name, params):
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return self.add_backend(backend_name, module_name, params, True)
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def get_backend(self, backend_name):
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config = RawConfigParser()
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config.read(self.confpath)
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if not config.has_section(backend_name):
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raise KeyError(u'Configured backend "%s" not found' % backend_name)
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items = dict(config.items(backend_name))
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try:
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module_name = items.pop('_module')
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except KeyError:
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try:
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module_name = items.pop('_backend')
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self.edit_backend(backend_name, module_name, items)
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except KeyError:
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warning('Missing field "_module" for configured backend "%s"', backend_name)
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raise KeyError(u'Configured backend "%s" not found' % backend_name)
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return module_name, items
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def remove_backend(self, backend_name):
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config = RawConfigParser()
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config.read(self.confpath)
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if not config.remove_section(backend_name):
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return False
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with open(self.confpath, 'w') as f:
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config.write(f)
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return True
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