/usr/share/pyshared/radicale/auth/htpasswd.py is in python-radicale 0.8-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# 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
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