60 lines
1.9 KiB
Python
60 lines
1.9 KiB
Python
# -*- coding: utf-8 -*-
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#
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# This file is part of Radicale Server - Calendar Server
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# Copyright © 2008-2010 Guillaume Ayoub
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# Copyright © 2008 Nicolas Kandel
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# Copyright © 2008 Pascal Halter
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#
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# This library 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, 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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# This library 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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#
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# You should have received a copy of the GNU General Public License
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# along with Radicale. If not, see <http://www.gnu.org/licenses/>.
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"""
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Htpasswd ACL.
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Load the list of login/password couples according a the configuration file
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created by Apache ``htpasswd`` command. Plain-text, crypt and sha1 are
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supported, but md5 is not (see ``htpasswd`` man page to understand why).
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"""
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import base64
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import crypt
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import hashlib
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from radicale import config
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def _plain(hash, password):
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return hash == password
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def _crypt(hash, password):
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return crypt.crypt(password, hash) == hash
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def _sha1(hash, password):
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hash = hash.lstrip("{SHA}").encode("ascii")
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password = password.encode(config.get("encoding", "stock"))
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sha1 = hashlib.sha1()
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sha1.update(password)
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return sha1.digest() == base64.b64decode(hash)
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_filename = config.get("acl", "filename")
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_check_password = locals()["_%s" % config.get("acl", "encryption")]
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def has_right(user, password):
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"""Check if ``user``/``password`` couple is valid."""
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for line in open(_filename).readlines():
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if line.strip():
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login, hash = line.strip().split(":")
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if login == user:
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return _check_password(hash, password)
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return False
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