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# Copyright (C) 2011-2014 by Barry A. Warsaw
#
# This file is part of flufl.password
#
# flufl.password is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by the
# Free Software Foundation, version 3 of the License.
#
# flufl.password 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 Lesser General Public
# License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with flufl.password. If not, see <http://www.gnu.org/licenses/>.
"""Various utilities."""
from __future__ import absolute_import, print_function, unicode_literals
__metaclass__ = type
__all__ = [
'BadPasswordFormatError',
'split',
]
import re
SCHEME_RE = r'{(?P<scheme>[^}]+?)}(?P<rest>.*)'.encode()
class BadPasswordFormatError(Exception):
"""A badly formatted password hash was given."""
def split(hashed):
mo = re.match(SCHEME_RE, hashed, re.IGNORECASE)
if not mo:
raise BadPasswordFormatError
scheme, secret = mo.groups(('scheme', 'rest'))
return scheme.decode('utf-8'), secret
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