feat: add user lang cookie preference

eox_core/edxapp_wrapper/backends/lang_pref_middleware_p_v1.py

@@ -0,0 +1,9 @@
+"""
+LanguagePreferenceMiddleware Backend.
+"""
+from openedx.core.djangoapps.lang_pref.middleware import LanguagePreferenceMiddleware  # pylint: disable=import-error
+
+
+def get_language_preference_middleware():
+    """Backend to get the LanguagePreferenceMiddleware from openedx."""
+    return LanguagePreferenceMiddleware

eox_core/edxapp_wrapper/language_preference.py

@@ -0,0 +1,11 @@
+""" Backend abstraction. """
+from importlib import import_module
+
+from django.conf import settings
+
+
+def get_language_preference_middleware(*args, **kwargs):
+    """ Get LanguagePreferenceMiddleware. """
+    backend_function = settings.EOX_CORE_LANG_PREF_BACKEND
+    backend = import_module(backend_function)
+    return backend.get_language_preference_middleware(*args, **kwargs)

eox_core/middleware.py

@@ -9,6 +9,7 @@
 import logging
 import re
 from urllib.parse import urlparse
+from django.http import parse_cookie
 
 import six
 from django.conf import settings
@@ -25,6 +26,7 @@
 
 from eox_core.edxapp_wrapper.configuration_helpers import get_configuration_helper
 from eox_core.edxapp_wrapper.third_party_auth import get_tpa_exception_middleware
+from eox_core.edxapp_wrapper.language_preference import get_language_preference_middleware
 from eox_core.models import Redirection
 from eox_core.utils import cache, fasthash
 
@@ -38,6 +40,7 @@ class EoxTenantAuthException:
 
 configuration_helper = get_configuration_helper()  # pylint: disable=invalid-name
 ExceptionMiddleware = get_tpa_exception_middleware()
+LanguagePreferenceMiddleware = get_language_preference_middleware()
 
 LOG = logging.getLogger(__name__)
 
@@ -282,3 +285,23 @@ def process_exception(self, request, exception):
             return super().process_exception(request, new_exception)
 
         return super().process_exception(request, exception)
+
+class UserLanguagePreferenceMiddleware(LanguagePreferenceMiddleware):
+    """This Middleware allows the user set the language preference for the site, avoiding the default LANGUAGE_CODE. 
+    
+        The previous behavior was modified here 
+        https://github.com/openedx/edx-platform/blob/open-release/palm.master/openedx/core/djangoapps/lang_pref/middleware.py#L61-L62
+    """
+    def process_request(self, request):
+        """
+        If a user's UserPreference contains a language preference, use the user's preference.
+        Save the current language preference cookie as the user's preferred language.
+        """
+        original_user_language_cookie = parse_cookie(request.META.get("HTTP_COOKIE", "")).get(
+            settings.LANGUAGE_COOKIE_NAME
+        )
+
+        if original_user_language_cookie:
+            request.COOKIES[settings.LANGUAGE_COOKIE_NAME] = original_user_language_cookie
+
+        return self.get_response(request)

eox_core/settings/common.py

@@ -49,6 +49,7 @@ def plugin_settings(settings):
     settings.EOX_CORE_BEARER_AUTHENTICATION = 'eox_core.edxapp_wrapper.backends.bearer_authentication_j_v1'
     settings.EOX_CORE_ASYNC_TASKS = []
     settings.EOX_CORE_THIRD_PARTY_AUTH_BACKEND = 'eox_core.edxapp_wrapper.backends.third_party_auth_l_v1'
+    settings.EOX_CORE_LANG_PREF_BACKEND = 'eox_core.edxapp_wrapper.backends.lang_pref_middleware_p_v1'
 
     if settings.EOX_CORE_USER_ENABLE_MULTI_TENANCY:
         settings.EOX_CORE_USER_ORIGIN_SITE_SOURCES = [

eox_core/settings/production.py

@@ -117,7 +117,12 @@ def plugin_settings(settings):  # pylint: disable=function-redefined
                 'eox_core.middleware.RedirectionsMiddleware',
                 'eox_core.middleware.TPAExceptionMiddleware'
             ]
-
+
+    settings.MIDDLEWARE.insert(
+        settings.MIDDLEWARE.index("openedx.core.djangoapps.lang_pref.middleware.LanguagePreferenceMiddleware") + 1,
+        "eox_core.middleware.UserLanguagePreferenceMiddleware",
+    )
+
     # Sentry Integration
     sentry_integration_dsn = getattr(settings, 'ENV_TOKENS', {}).get(
         'EOX_CORE_SENTRY_INTEGRATION_DSN',