62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
# This file is part of Radicale Server - Calendar Server
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# Copyright © 2011 Henry-Nicolas Tourneur
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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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Courier-Authdaemon authentication.
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"""
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import sys
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import socket
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from .. import config, log
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COURIER_SOCKET = config.get("auth", "courier_socket")
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def is_authenticated(user, password):
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"""Check if ``user``/``password`` couple is valid."""
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if not user or not password:
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return False
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line = "%s\nlogin\n%s\n%s" % (sys.argv[0], user, password)
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line = "AUTH %i\n%s" % (len(line), line)
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try:
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sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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sock.connect(COURIER_SOCKET)
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log.LOGGER.debug("Sending to Courier socket the request: %s" % line)
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sock.send(line)
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data = sock.recv(1024)
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sock.close()
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except socket.error as exception:
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log.LOGGER.debug(
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"Unable to communicate with Courier socket: %s" % exception)
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return False
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log.LOGGER.debug("Got Courier socket response: %r" % data)
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# Address, HOME, GID, and either UID or USERNAME are mandatory in resposne
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# see http://www.courier-mta.org/authlib/README_authlib.html#authpipeproto
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for line in data.split():
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if "GID" in line:
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return True
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# default is reject
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# this alleviates the problem of a possibly empty reply from authlib
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# see http://www.courier-mta.org/authlib/README_authlib.html#authpipeproto
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return False
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