deb-horizon/openstack_dashboard/context_processors.py

109 lines
4.0 KiB
Python

# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2012 Nebula, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
Context processors used by Horizon.
"""
import re
from django.conf import settings
from horizon import conf
from openstack_dashboard.contrib.developer.profiler import api as profiler
def openstack(request):
"""Context processor necessary for OpenStack Dashboard functionality.
The following variables are added to the request context:
``authorized_tenants``
A list of tenant objects which the current user has access to.
``regions``
A dictionary containing information about region support, the current
region, and available regions.
"""
context = {}
# Auth/Keystone context
context.setdefault('authorized_tenants', [])
if request.user.is_authenticated():
context['authorized_tenants'] = [
tenant for tenant in
request.user.authorized_tenants if tenant.enabled]
# Region context/support
available_regions = getattr(settings, 'AVAILABLE_REGIONS', [])
regions = {'support': len(available_regions) > 1,
'current': {'endpoint': request.session.get('region_endpoint'),
'name': request.session.get('region_name')},
'available': [{'endpoint': region[0], 'name':region[1]} for
region in available_regions]}
# K2K Federation Service Providers context/support
available_providers = request.session.get('keystone_providers', [])
if available_providers:
provider_id = request.session.get('keystone_provider_id', None)
provider_name = None
for provider in available_providers:
if provider['id'] == provider_id:
provider_name = provider.get('name')
keystone_providers = {
'support': len(available_providers) > 1,
'current': {
'name': provider_name,
'id': provider_id
},
'available': [
{'name': keystone_provider['name'],
'id': keystone_provider['id']}
for keystone_provider in available_providers]
}
else:
keystone_providers = {'support': False}
context['keystone_providers'] = keystone_providers
context['regions'] = regions
# Adding webroot access
context['WEBROOT'] = getattr(settings, "WEBROOT", "/")
# Adding profiler support flag
profiler_settings = getattr(settings, 'OPENSTACK_PROFILER', {})
profiler_enabled = profiler_settings.get('enabled', False)
context['profiler_enabled'] = profiler_enabled
if profiler_enabled and 'profile_page' in request.COOKIES:
index_view_id = request.META.get(profiler.ROOT_HEADER, '')
hmac_keys = profiler_settings.get('keys', [])
context['x_trace_info'] = profiler.update_trace_headers(
hmac_keys, parent_id=index_view_id)
# Search for external plugins and append to javascript message catalog
# internal plugins are under the openstack_dashboard domain
# so we exclude them from the js_catalog
js_catalog = ['horizon', 'openstack_dashboard']
regex = re.compile(r'^openstack_dashboard')
all_plugins = conf.HORIZON_CONFIG['plugins']
js_catalog.extend(p for p in all_plugins if not regex.search(p))
context['JS_CATALOG'] = '+'.join(js_catalog)
return context