e2cf94eb46
The main difficulty in tracing async requests which are made during the rendering of Angular-based pages is tracking the root request (the one which was made to render the skeleton page which then initiated all other requests) throughout other requests, so they form a cohesive trace. This is solved by capturing the root request id and exposing it as a profiler module constant in the process of interpolating _scripts.html Django template. Then if that constant is not an empty dictionary, profiler module intercepts all Angular requests and adds osprofiler headers to them. This patch also fixes issues which arose after transitioning to the new version of angular-bootstrap. Change-Id: I656028b969289a473f54594681d9313ff8a07fd8
84 lines
3.1 KiB
Python
84 lines
3.1 KiB
Python
# 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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Context processors used by Horizon.
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"""
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import re
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from django.conf import settings
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from horizon import conf
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from openstack_dashboard.contrib.developer.profiler import api as profiler
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def openstack(request):
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"""Context processor necessary for OpenStack Dashboard functionality.
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The following variables are added to the request context:
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``authorized_tenants``
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A list of tenant objects which the current user has access to.
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``regions``
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A dictionary containing information about region support, the current
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region, and available regions.
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"""
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context = {}
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# Auth/Keystone context
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context.setdefault('authorized_tenants', [])
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if request.user.is_authenticated():
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context['authorized_tenants'] = [
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tenant for tenant in
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request.user.authorized_tenants if tenant.enabled]
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# Region context/support
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available_regions = getattr(settings, 'AVAILABLE_REGIONS', [])
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regions = {'support': len(available_regions) > 1,
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'current': {'endpoint': request.session.get('region_endpoint'),
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'name': request.session.get('region_name')},
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'available': [{'endpoint': region[0], 'name':region[1]} for
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region in available_regions]}
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context['regions'] = regions
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# Adding webroot access
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context['WEBROOT'] = getattr(settings, "WEBROOT", "/")
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# Adding profiler support flag
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profiler_settings = getattr(settings, 'OPENSTACK_PROFILER', {})
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profiler_enabled = profiler_settings.get('enabled', False)
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context['profiler_enabled'] = profiler_enabled
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if profiler_enabled and 'profile_page' in request.COOKIES:
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index_view_id = request.META.get(profiler.ROOT_HEADER, '')
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hmac_keys = profiler_settings.get('keys', [])
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context['x_trace_info'] = profiler.update_trace_headers(
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hmac_keys, parent_id=index_view_id)
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# Search for external plugins and append to javascript message catalog
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# internal plugins are under the openstack_dashboard domain
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# so we exclude them from the js_catalog
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js_catalog = ['horizon', 'openstack_dashboard']
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regex = re.compile(r'^openstack_dashboard')
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all_plugins = conf.HORIZON_CONFIG['plugins']
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js_catalog.extend(p for p in all_plugins if not regex.search(p))
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context['JS_CATALOG'] = '+'.join(js_catalog)
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return context
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