69 lines
2.3 KiB
Python
69 lines
2.3 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# This file is part of Radicale Server - Calendar Server
|
|
# Copyright © 2008 Nicolas Kandel
|
|
# Copyright © 2008 Pascal Halter
|
|
# Copyright © 2008-2013 Guillaume Ayoub
|
|
#
|
|
# This library is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This library 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 General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with Radicale. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
"""
|
|
Htpasswd authentication.
|
|
|
|
Load the list of login/password couples according a the configuration file
|
|
created by Apache ``htpasswd`` command. Plain-text, crypt and sha1 are
|
|
supported, but md5 is not (see ``htpasswd`` man page to understand why).
|
|
|
|
"""
|
|
|
|
import base64
|
|
import hashlib
|
|
|
|
from .. import config
|
|
|
|
|
|
FILENAME = config.get("auth", "htpasswd_filename")
|
|
ENCRYPTION = config.get("auth", "htpasswd_encryption")
|
|
|
|
|
|
def _plain(hash_value, password):
|
|
"""Check if ``hash_value`` and ``password`` match using plain method."""
|
|
return hash_value == password
|
|
|
|
|
|
def _crypt(hash_value, password):
|
|
"""Check if ``hash_value`` and ``password`` match using crypt method."""
|
|
# The ``crypt`` module is only present on Unix, import if needed
|
|
import crypt
|
|
return crypt.crypt(password, hash_value) == hash_value
|
|
|
|
|
|
def _sha1(hash_value, password):
|
|
"""Check if ``hash_value`` and ``password`` match using sha1 method."""
|
|
hash_value = hash_value.replace("{SHA}", "").encode("ascii")
|
|
password = password.encode(config.get("encoding", "stock"))
|
|
sha1 = hashlib.sha1() # pylint: disable=E1101
|
|
sha1.update(password)
|
|
return sha1.digest() == base64.b64decode(hash_value)
|
|
|
|
|
|
def is_authenticated(user, password):
|
|
"""Check if ``user``/``password`` couple is valid."""
|
|
for line in open(FILENAME).readlines():
|
|
if line.strip():
|
|
login, hash_value = line.strip().split(":")
|
|
if login == user:
|
|
return globals()["_%s" % ENCRYPTION](hash_value, password)
|
|
return False
|