39 lines
1.3 KiB
Python
39 lines
1.3 KiB
Python
''' Exports Config. '''
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import os
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import configobj
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class ConfigurationError(RuntimeError):
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''' A problem with config.ini file. '''
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pass
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class Config(object):
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''' INI config parser and container. '''
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def __init__(self):
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self.config = configobj.ConfigObj('config.ini.dist')
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if os.path.exists('config.ini'):
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self.config.merge(configobj.ConfigObj('config.ini'))
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self._validate()
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def __getitem__(self, key):
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return self.config[key]
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def _validate(self):
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'''
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Checks whether config.ini doesn't contain errors that might prove
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lethal at runtime.
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'''
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all_ranks = self['service']['user_ranks']
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for privilege, rank in self['privileges'].items():
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if rank not in all_ranks:
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raise ConfigurationError(
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'Rank %r for privilege %r is missing from user_ranks' % (
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rank, privilege))
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for rank in ['anonymous', 'admin', 'nobody']:
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if rank not in all_ranks:
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raise ConfigurationError('Fixed rank %r is missing from user_ranks' % rank)
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if self['service']['default_user_rank'] not in all_ranks:
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raise ConfigurationError(
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'Default rank %r is missing from user_ranks' % (
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self['service']['default_user_rank']))
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