63 lines
2.9 KiB
Python
63 lines
2.9 KiB
Python
"This is the locale selecting middleware that will look at accept headers"
|
|
|
|
from django.conf import settings
|
|
from django.conf.urls.i18n import is_language_prefix_patterns_used
|
|
from django.http import HttpResponseRedirect
|
|
from django.urls import get_script_prefix, is_valid_path
|
|
from django.utils import translation
|
|
from django.utils.cache import patch_vary_headers
|
|
|
|
|
|
class LocaleMiddleware(object):
|
|
"""
|
|
This is a very simple middleware that parses a request
|
|
and decides what translation object to install in the current
|
|
thread context. This allows pages to be dynamically
|
|
translated to the language the user desires (if the language
|
|
is available, of course).
|
|
"""
|
|
response_redirect_class = HttpResponseRedirect
|
|
|
|
def process_request(self, request):
|
|
urlconf = getattr(request, 'urlconf', settings.ROOT_URLCONF)
|
|
i18n_patterns_used, prefixed_default_language = is_language_prefix_patterns_used(urlconf)
|
|
language = translation.get_language_from_request(request, check_path=i18n_patterns_used)
|
|
language_from_path = translation.get_language_from_path(request.path_info)
|
|
if not language_from_path and i18n_patterns_used and not prefixed_default_language:
|
|
language = settings.LANGUAGE_CODE
|
|
translation.activate(language)
|
|
request.LANGUAGE_CODE = translation.get_language()
|
|
|
|
def process_response(self, request, response):
|
|
language = translation.get_language()
|
|
language_from_path = translation.get_language_from_path(request.path_info)
|
|
urlconf = getattr(request, 'urlconf', settings.ROOT_URLCONF)
|
|
i18n_patterns_used, prefixed_default_language = is_language_prefix_patterns_used(urlconf)
|
|
|
|
if response.status_code == 404 and not language_from_path and i18n_patterns_used:
|
|
language_path = '/%s%s' % (language, request.path_info)
|
|
path_valid = is_valid_path(language_path, urlconf)
|
|
path_needs_slash = (
|
|
not path_valid and (
|
|
settings.APPEND_SLASH and not language_path.endswith('/')
|
|
and is_valid_path('%s/' % language_path, urlconf)
|
|
)
|
|
)
|
|
|
|
if path_valid or path_needs_slash:
|
|
script_prefix = get_script_prefix()
|
|
# Insert language after the script prefix and before the
|
|
# rest of the URL
|
|
language_url = request.get_full_path(force_append_slash=path_needs_slash).replace(
|
|
script_prefix,
|
|
'%s%s/' % (script_prefix, language),
|
|
1
|
|
)
|
|
return self.response_redirect_class(language_url)
|
|
|
|
if not (i18n_patterns_used and language_from_path):
|
|
patch_vary_headers(response, ('Accept-Language',))
|
|
if 'Content-Language' not in response:
|
|
response['Content-Language'] = language
|
|
return response
|