+
−#!/usr/bin/python2.5
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−#
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−# Copyright 2009 the Melange authors.
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−#
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−# Licensed under the Apache License, Version 2.0 (the "License");
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−# you may not use this file except in compliance with the License.
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−# You may obtain a copy of the License at
+
−#
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−#   http://www.apache.org/licenses/LICENSE-2.0
+
−#
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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,
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−# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
−# See the License for the specific language governing permissions and
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−# limitations under the License.
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−
+
−"""Middleware to handle maintenance mode.
+
−"""
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−
+
−__authors__ = [
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−  '"Sverre Rabbelier" <sverre@rabbelier.nl>',
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−  ]
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−
+
−
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−from google.appengine.runtime.apiproxy_errors import CapabilityDisabledError
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−
+
−from django import http
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−from django.utils.translation import ugettext
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−
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−from soc.views.helper import responses
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−
+
−
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−DEF_DOWN_FOR_MAINTENANCE_MSG = ugettext("Down for maintenance")
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−DEF_IN_UNEXPECTED_MAINTENANCE_MSG = ugettext(
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−      "Down for unexpected maintenance.")
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−
+
−
+
−class MaintenanceMiddleware(object):
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−  """Middleware to handle maintenance mode.
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−  """
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−
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−  def maintenance(self, request):
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−    """Returns a 'down for maintenance' view.
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−    """
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−
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−    context = responses.getUniversalContext(request)
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−    context['page_name'] = ugettext('Maintenance')
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−
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−    notice = context.pop('site_notice')
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−
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−    if not notice:
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−      context['body_content'] = DEF_IN_UNEXPECTED_MAINTENANCE_MSG
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−    else:
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−      context['body_content'] = notice
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−
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−    context['header_title'] = DEF_DOWN_FOR_MAINTENANCE_MSG
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−    context['sidebar_menu_items'] = [
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−        {'heading': DEF_DOWN_FOR_MAINTENANCE_MSG,
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−         'group': ''},
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−        ]
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−
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−    template = 'soc/base.html'
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−
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−    return responses.respond(request, template, context=context)
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−
+
−  def process_request(self, request):
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−    """Called when a request is made.
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−
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−    See the Django middleware documentation for an explanation of
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−    the method signature.
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−    """
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−
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−    context = responses.getUniversalContext(request)
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−
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−    if not context['is_admin'] and context['in_maintenance']:
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−      return self.maintenance(request)
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−
+
−  def process_exception(self, request, exception):
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−    """Called when an uncaught exception is raised.
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−
+
−    See the Django middleware documentation for an explanation of
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−    the method signature.
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−    """
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−
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−    if isinstance(exception, CapabilityDisabledError):
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−      # assume the site is in maintenance if we get CDE
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−      return maintenance(request)
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−
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−    # let the exception handling middleware handle it
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−    return None