052aa55d34
There are no longer two separate projects living inside the horizon repository. There is a single project now with a single setup.py, single README, etc. The openstack-dashboard/dashboard django project is now named "openstack_dashboard" and lives as an example project in the topmost horizon directory. The "horizon/horizon" directory has been bumped up a level and now is directly on the path when the root horizon directory is on your python path. Javascript media which the horizon module directly relies upon now ships in the horizon/static dir rather than openstack-dashboard/dashboard/static. All the corresponding setup, installation, build, and env scripts have been updated accordingly. Implements blueprint unified-packaging. Change-Id: Ieed8e3c777432cd046c3e0298869a9428756ab62
100 lines
3.8 KiB
Python
100 lines
3.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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#
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# Copyright 2012 Nebula, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Middleware provided and used by Horizon.
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"""
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import logging
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from django import http
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from django import shortcuts
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from django.core.urlresolvers import reverse
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from django.contrib import messages
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from django.contrib.auth import REDIRECT_FIELD_NAME
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from django.utils.translation import ugettext as _
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from django.utils.encoding import iri_to_uri
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from horizon import api
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from horizon import exceptions
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from horizon import users
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LOG = logging.getLogger(__name__)
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class HorizonMiddleware(object):
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""" The main Horizon middleware class. Required for use of Horizon. """
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def process_request(self, request):
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""" Adds data necessary for Horizon to function to the request.
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Adds the current "active" :class:`~horizon.Dashboard` and
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:class:`~horizon.Panel` to ``request.horizon``.
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Adds a :class:`~horizon.users.User` object to ``request.user``.
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"""
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request.__class__.user = users.LazyUser()
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request.horizon = {'dashboard': None, 'panel': None}
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if request.user.is_authenticated() and \
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request.user.authorized_tenants is None:
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try:
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token = request.session.get("unscoped_token",
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request.user.token)
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authd = api.tenant_list_for_token(request,
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token,
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endpoint_type='internalURL')
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except:
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authd = []
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LOG.exception('Could not retrieve tenant list.')
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if hasattr(request.user, 'message_set'):
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messages.error(request,
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_("Unable to retrieve tenant list."))
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request.user.authorized_tenants = authd
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def process_exception(self, request, exception):
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"""
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Catches internal Horizon exception classes such as NotAuthorized,
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NotFound and Http302 and handles them gracefully.
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"""
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if isinstance(exception, exceptions.NotAuthorized):
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auth_url = reverse("horizon:auth_login")
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next_url = iri_to_uri(request.get_full_path())
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if next_url != auth_url:
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param = "?%s=%s" % (REDIRECT_FIELD_NAME, next_url)
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redirect_to = "".join((auth_url, param))
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else:
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redirect_to = auth_url
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messages.error(request, unicode(exception))
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if request.is_ajax():
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response_401 = http.HttpResponse(status=401)
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response_401["REDIRECT_URL"] = redirect_to
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return response_401
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return shortcuts.redirect(redirect_to)
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# If an internal "NotFound" error gets this far, return a real 404.
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if isinstance(exception, exceptions.NotFound):
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raise http.Http404(exception)
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if isinstance(exception, exceptions.Http302):
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if exception.message:
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messages.error(request, exception.message)
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return shortcuts.redirect(exception.location)
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