seafile_ynh/sources/seafile-server-3.1.1/seahub/thirdpart/Djblets-0.6.14.dev-py2.6.egg/djblets/webapi/auth.py
Elie 0f063400be Add sources
Former-commit-id: 2e47976ec5
2014-08-06 22:42:37 -04:00

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Python

#
# auth.py -- Authentication helpers for webapi
#
# Copyright (c) 2007-2009 Christian Hammond
# Copyright (c) 2007-2009 David Trowbridge
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
import logging
from django.contrib import auth
from django.views.decorators.http import require_POST
from djblets.webapi.core import WebAPIResponse, WebAPIResponseError
from djblets.webapi.decorators import webapi
from djblets.webapi.errors import LOGIN_FAILED
def check_login(request):
"""Checks if a login request was made.
If the client specifies a HTTP_AUTHORIZATION header, this will attempt
to authenticate using a supported authentication method.
"""
if 'HTTP_AUTHORIZATION' in request.META:
basic_access_login(request)
def basic_access_login(request):
try:
realm, encoded_auth = request.META['HTTP_AUTHORIZATION'].split(' ')
username, password = encoded_auth.decode('base64').split(':', 1)
except ValueError:
logging.warning("Failed to parse HTTP_AUTHORIZATION header %s" %
request.META['HTTP_AUTHORIZATION'],
exc_info=1)
return
if realm != 'Basic':
return
# Don't authenticate if a user is already logged in and the
# username matches.
#
# Note that this does mean that a new password will fail. However,
# the user is already logged in, and querying the backend for every
# request is excessive, so it's a tradeoff. The user already has access
# to the server at this point anyway.
if request.user.is_anonymous() or request.user.username != username:
logging.debug("Attempting authentication on API for user %s" % username)
user = auth.authenticate(username=username, password=password)
if user and user.is_active:
auth.login(request, user)
else:
logging.debug("API Login failed. No valid user found.")
auth.logout(request)
@require_POST
@webapi
def account_login(request, *args, **kwargs):
username = request.POST.get('username', None)
password = request.POST.get('password', None)
user = auth.authenticate(username=username, password=password)
if not user or not user.is_active:
return WebAPIResponseError(request, LOGIN_FAILED)
auth.login(request, user)
return WebAPIResponse(request)
@webapi
def account_logout(request, *args, **kwargs):
auth.logout(request)
return WebAPIResponse(request)