128 lines
4 KiB
Python
128 lines
4 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Copyright(C) 2010 Romain Bignon
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, version 3 of the License.
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This program 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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"""
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import re
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import os
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from ConfigParser import SafeConfigParser
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from logging import warning, debug
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import weboob.backends as backends
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from weboob.backend import Backend
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from weboob.capabilities.cap import ICap
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from weboob.tools.misc import itersubclasses
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class Module:
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def __init__(self, name, module):
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self.name = name
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self.module = module
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self.klass = None
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for attrname in dir(self.module):
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attr = getattr(self.module, attrname)
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if isinstance(attr, type) and issubclass(attr, Backend) and attr != Backend:
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self.klass = attr
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if not self.klass:
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raise ImportError("This is not a backend module (no Backend class found)")
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def get_name(self):
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return self.klass.NAME
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def get_maintainer(self):
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return '%s <%s>' % (self.klass.MAINTAINER, self.klass.EMAIL)
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def get_version(self):
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return self.klass.VERSION
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def get_description(self):
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return self.klass.DESCRIPTION
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def get_license(self):
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return self.klass.LICENSE
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def get_config(self):
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return self.klass.CONFIG
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def iter_caps(self):
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for subclass in itersubclasses(self.klass):
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if issubclass(subclass, ICap):
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yield subclass
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def has_caps(self, *caps):
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for c in caps:
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if issubclass(self.klass, c):
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return True
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return False
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def create_backend(self, weboob, name, config):
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return self.klass(weboob, name, config)
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class BackendsConfig:
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def __init__(self, confpath):
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self.confpath = confpath
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def iter_backends(self):
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config = SafeConfigParser()
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config.read(self.confpath)
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for name in config.sections():
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params = dict(config.items(name))
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try:
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yield name, params.pop('_type'), params
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except KeyError:
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warning("Missing field '_type' for backend '%s'", name)
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continue
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def add_backend(self, name, _type, params):
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config = SafeConfigParser()
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config.read(self.confpath)
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config.add_section(name)
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config.set(name, '_type', _type)
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for key, value in params.iteritems():
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config.set(name, key, value)
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config.save(self.confpath)
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def remove_backend(self, name):
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config = SafeConfigParser()
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config.read(self.confpath)
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config.remove_section(name)
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config.save(self.confpath)
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class ModulesLoader:
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def __init__(self):
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self.modules = {}
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def load(self):
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path = backends.__path__[0]
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regexp = re.compile('^%s/([\w\d_]+)$' % path)
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for root, dirs, files in os.walk(path):
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m = regexp.match(root)
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if m and '__init__.py' in files:
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self.load_module('weboob.backends.%s' % m.group(1))
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def load_module(self, name):
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try:
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module = Module(name, __import__(name, fromlist=[name]))
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except ImportError, e:
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warning('Unable to load module %s: %s' % (name, e))
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return
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if name in self.modules:
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warning('Module "%s" is already loaded (%s)' % self.modules[name].module)
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return
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self.modules[module.get_name()] = module
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debug('Loaded module %s (%s)' % (name, module.module.__name__))
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