forked from django-cms/django-cms
/
toolbar.py
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/
toolbar.py
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# -*- coding: utf-8 -*-
"""
Edit Toolbar middleware
"""
from cms.utils.conf import get_cms_setting
from cms.toolbar.toolbar import CMSToolbar
from cms.utils.i18n import force_language
from django.contrib.admin.models import LogEntry, ADDITION, CHANGE
from menus.menu_pool import menu_pool
from django.http import HttpResponse
from django.template.loader import render_to_string
from cms.utils.placeholder import get_toolbar_plugin_struct
def toolbar_plugin_processor(instance, placeholder, rendered_content, original_context):
from cms.plugin_pool import plugin_pool
original_context.push()
child_plugin_classes = []
plugin_class = instance.get_plugin_class()
if plugin_class.allow_children:
inst, plugin = instance.get_plugin_instance()
page = original_context['request'].current_page
children = [plugin_pool.get_plugin(cls) for cls in plugin.get_child_classes(placeholder, page)]
# Builds the list of dictionaries containing module, name and value for the plugin dropdowns
child_plugin_classes = get_toolbar_plugin_struct(children, placeholder.slot, placeholder.page,
parent=plugin_class)
instance.placeholder = placeholder
request = original_context['request']
with force_language(request.toolbar.toolbar_language):
data = {
'instance': instance,
'rendered_content': rendered_content,
'child_plugin_classes': child_plugin_classes,
'edit_url': placeholder.get_edit_url(instance.pk),
'add_url': placeholder.get_add_url(),
'delete_url': placeholder.get_delete_url(instance.pk),
'move_url': placeholder.get_move_url(),
}
original_context.update(data)
plugin_class = instance.get_plugin_class()
template = plugin_class.frontend_edit_template
output = render_to_string(template, original_context).strip()
original_context.pop()
return output
class ToolbarMiddleware(object):
"""
Middleware to set up CMS Toolbar.
"""
def process_request(self, request):
"""
If we should show the toolbar for this request, put it on
request.toolbar. Then call the request_hook on the toolbar.
"""
edit_on = get_cms_setting('CMS_TOOLBAR_URL__EDIT_ON')
edit_off = get_cms_setting('CMS_TOOLBAR_URL__EDIT_OFF')
build = get_cms_setting('CMS_TOOLBAR_URL__BUILD')
if edit_on in request.GET and not request.session.get('cms_edit', False):
if not request.session.get('cms_edit', False):
menu_pool.clear()
request.session['cms_edit'] = True
if request.session.get('cms_build', False):
request.session['cms_build'] = False
if edit_off in request.GET and request.session.get('cms_edit', True):
if request.session.get('cms_edit', True):
menu_pool.clear()
request.session['cms_edit'] = False
if request.session.get('cms_build', False):
request.session['cms_build'] = False
if build in request.GET and not request.session.get('cms_build', False):
request.session['cms_build'] = True
if request.user.is_staff:
try:
request.cms_latest_entry = LogEntry.objects.filter(
user=request.user,
action_flag__in=(ADDITION, CHANGE)
).only('pk').order_by('-pk')[0].pk
except IndexError:
request.cms_latest_entry = -1
request.toolbar = CMSToolbar(request)
def process_view(self, request, view_func, view_args, view_kwarg):
response = request.toolbar.request_hook()
if isinstance(response, HttpResponse):
return response
def process_response(self, request, response):
from django.utils.cache import add_never_cache_headers
found = False
if hasattr(request, 'toolbar') and request.toolbar.edit_mode:
found = True
for placeholder in getattr(request, 'placeholders', []):
if not placeholder.cache_placeholder:
found = True
break
if found:
add_never_cache_headers(response)
if hasattr(request, 'user') and request.user.is_staff and response.status_code != 500:
try:
pk = LogEntry.objects.filter(
user=request.user,
action_flag__in=(ADDITION, CHANGE)
).only('pk').order_by('-pk')[0].pk
if hasattr(request, 'cms_latest_entry') and request.cms_latest_entry != pk:
log = LogEntry.objects.filter(user=request.user, action_flag__in=(ADDITION, CHANGE))[0]
request.session['cms_log_latest'] = log.pk
# If there were no LogEntries, just don't touch the session.
# Note that in the case of a user logging-in as another user,
# request may have a cms_latest_entry attribute, but there are no
# LogEntries for request.user.
except IndexError:
pass
return response