def get_fallback_languages_for_page(page, current_language, current_user=None, allowed_languages=None):
if allowed_languages is None:
allowed_languages = get_languages_for_page_user(page=page, user=current_user)
return [language for language in get_fallback_languages(current_language) if language in allowed_languages]
def details(request, slug):
"""
The main view of the Django-CMS! Takes a request and a slug, renders the
page.
"""
# get the right model
context = RequestContext(request)
# Get a Page model object from the request
page = get_page_from_request(request, use_path=slug)
if not page:
return _handle_no_page(request, slug)
current_language = get_language_from_request(request)
# Languages specific to page that the current user can see.
available_languages = get_languages_for_page_user(page=page, user=request.user)
attrs = ''
if 'edit' in request.GET:
attrs = '?edit=1'
elif 'preview' in request.GET:
attrs = '?preview=1'
if 'draft' in request.GET:
attrs += '&draft=1'
# Check that the user has access to this language
# which is defined in FRONTEND_LANGUAGES:
if not current_language in get_languages_for_user(user=request.user):
#are we on root?
if not slug and available_languages:
#redirect to supported language
languages = [(language, language) for language in available_languages]
with SettingsOverride(LANGUAGES=languages, LANGUAGE_CODE=languages[0][0]):
# get supported language
new_language = get_language_from_request(request)
if new_language in get_public_languages():
with force_language(new_language):
pages_root = reverse('pages-root')
return HttpResponseRedirect(pages_root + attrs)
else:
return _handle_no_page(request, slug)
if current_language not in available_languages:
fallback_languages = get_fallback_languages_for_page(page, current_language, request.user)
if fallback_languages:
if get_redirect_on_fallback(current_language):
fallback_language = fallback_languages[0]
with force_language(fallback_language):
path = page.get_absolute_url(language=fallback_language, fallback=True) + attrs
return HttpResponseRedirect(path)
else:
# There is a page object we can't find a proper language to render it
return _handle_no_page(request, slug)
else:
page_path = page.get_absolute_url(language=current_language)
page_slug = page.get_path(language=current_language) or page.get_slug(language=current_language)
if slug and slug != page_slug and request.path[:len(page_path)] != page_path:
# The current language does not match it's slug.
# Redirect to the current language.
return HttpResponseRedirect(page_path + attrs)
if apphook_pool.get_apphooks():
# There are apphooks in the pool. Let's see if there is one for the
# current page
# since we always have a page at this point, applications_page_check is
# pointless
# page = applications_page_check(request, page, slug)
# Check for apphooks! This time for real!
try:
app_urls = page.get_application_urls(current_language, False)
except Title.DoesNotExist:
app_urls = []
if app_urls:
app = apphook_pool.get_apphook(app_urls)
pattern_list = []
for urlpatterns in get_app_urls(app.urls):
pattern_list += urlpatterns
urlpatterns = patterns('', *pattern_list)
try:
context.current_app = page.reverse_id if page.reverse_id else app.app_name
view, args, kwargs = resolve('/', tuple(urlpatterns))
return view(request, *args, **kwargs)
except Resolver404:
pass
# Check if the page has a redirect url defined for this language.
redirect_url = page.get_redirect(language=current_language)
if redirect_url:
if (is_language_prefix_patterns_used() and redirect_url[0] == "/"
and not redirect_url.startswith('/%s/' % current_language)):
# add language prefix to url
redirect_url = "/%s/%s" % (current_language, redirect_url.lstrip("/"))
# prevent redirect to self
own_urls = [
'http%s://%s%s' % ('s' if request.is_secure() else '', request.get_host(), request.path),
'/%s' % request.path,
request.path,
]
if redirect_url not in own_urls:
return HttpResponseRedirect(redirect_url + attrs)
# permission checks
if page.login_required and not request.user.is_authenticated():
return redirect_to_login(urlquote(request.get_full_path()), settings.LOGIN_URL)
template_name = get_template_from_request(request, page, no_current_page=True)
has_view_permissions = page.has_view_permission(request)
# fill the context
context['lang'] = current_language
context['current_page'] = page
context['has_change_permissions'] = page.has_change_permission(request)
context['has_view_permissions'] = has_view_permissions
if not has_view_permissions:
return _handle_no_page(request, slug)
return render_to_response(template_name, context_instance=context)
