app/soc/views/helper/responses.py
author Sverre Rabbelier <srabbelier@gmail.com>
Tue, 25 Nov 2008 17:19:37 +0000
changeset 586 a4a36b06a870
parent 585 903890857ed8
child 646 860e17e5118f
permissions -rw-r--r--
Make the sidebar dynamic depending on the user's rights This is done by doing the usual access checks that are also called when the user actually visits the page.
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#!/usr/bin/python2.5
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#
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# Copyright 2008 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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#
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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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Helpers used to render response.
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"""
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__authors__ = [
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  '"Todd Larsen" <tlarsen@google.com>',
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  '"Pawel Solyga" <pawel.solyga@gmail.com>',
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  ]
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from google.appengine.api import users
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from django import http
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from django.template import loader
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from soc import release
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from soc.logic import accounts
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from soc.logic import system
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from soc.logic.models import site
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from soc.views import helper
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from soc.views.sitemap import sidebar
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import soc.logic
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import soc.logic.models.user
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import soc.views.helper.requests
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def respond(request, template, context=None, response_args=None):
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  """Helper to render a response, passing standard stuff to the response.
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  Args:
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    request: the Django HTTP request object
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    template: the template (or search list of templates) to render
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    context: the context supplied to the template (implements dict)
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    response_args: keyword arguments passed to http.HttpResponse()
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      (response_args['content'] is created with
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      render_to_string(template, dictionary=context) if it is not present)
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  Returns:
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    django.shortcuts.render_to_response(template, context) results
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  Raises:
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    Any exceptions that django.template.loader.render_to_string() or
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    django.http.HttpResponse() might raise.
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  """
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  if not context:
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    context = getUniversalContext(request)
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  if response_args is None:
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    response_args = {}
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  response_args['content'] = response_args.get(
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      'content', loader.render_to_string(template, dictionary=context))
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  return http.HttpResponse(**response_args)
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def getUniversalContext(request):
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  """Constructs a template context dict will many common variables defined.
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  Args:
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    request: the Django HTTP request object
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  Returns:
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    a new context dict containing:
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    {
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      'request': the Django HTTP request object passed in by the caller
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      'account': the logged-in Google Account if there is one
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      'user': the User entity corresponding to the Google Account in
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        context['account']
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      'is_admin': True if users.is_current_user_admin() is True
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      'is_debug': True if system.isDebug() is True
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      'sign_in': a Google Account login URL
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      'sign_out': a Google Account logout URL
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      'sidebar_menu_html': an HTML string that renders the sidebar menu
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    }
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  """
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  account = users.get_current_user()
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  context = {}
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  context['request'] = request
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  if account:
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    context['account'] = account
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    context['user'] = soc.logic.models.user.logic.getForFields(
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        {'account': account}, unique=True)
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    context['is_admin'] = accounts.isDeveloper(account=account)
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  context['is_debug'] = system.isDebug()
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  context['sign_in'] = users.create_login_url(request.path)
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  context['sign_out'] = users.create_logout_url(request.path)
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  context['sidebar_menu_items'] = sidebar.getSidebar(request)
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  context['soc_release'] = release.RELEASE_TAG
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  context['gae_version'] = system.getAppVersion()
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  settings = site.logic.getFromFields(
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      scope_path=site.logic.DEF_SITE_SCOPE_PATH,
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      link_id=site.logic.DEF_SITE_LINK_ID)
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  if settings:
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    context['ga_tracking_num'] = settings.ga_tracking_num
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  return context
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def redirectToChangedSuffix(
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    request, old_suffix, new_suffix=None, params=None):
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  """Changes suffix of URL path and returns an HTTP redirect response.
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  Args:
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    request: the Django HTTP request object; redirect path is derived from
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      request.path
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    old_suffix, new_suffix, params:  see helper.requests.replaceSuffix()
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  Returns:
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    a Django HTTP redirect response pointing to the altered path.
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  """
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  path = helper.requests.replaceSuffix(request.path, old_suffix, new_suffix,
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                                       params=params)
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  return http.HttpResponseRedirect(path)