feat: `djang-cor-headers` need schemes with urls. Adding condition to switch...

feat: `djang-cor-headers` need schemes with urls. Adding condition to switch lists with different version.

With the PR it will load the old `CORS_ORIGIN_WHITELIST` since there is no change in `djang-cor-headers` version. In next PR this version will get upgraded.

cms/envs/production.py

@@ -16,8 +16,10 @@ from corsheaders.defaults import default_headers as corsheaders_default_headers
 from django.core.exceptions import ImproperlyConfigured
 from django.urls import reverse_lazy
 from edx_django_utils.plugins import add_plugins
+from importlib.metadata import version
 from path import Path as path
 
+
 from openedx.core.djangoapps.plugins.constants import ProjectType, SettingsType
 
 from .common import *
@@ -554,6 +556,13 @@ derive_settings(__name__)
 if FEATURES.get('ENABLE_CORS_HEADERS'):
     CORS_ALLOW_CREDENTIALS = True
     CORS_ORIGIN_WHITELIST = ENV_TOKENS.get('CORS_ORIGIN_WHITELIST', ())
+
+    # values are already updated above with default CORS_ORIGIN_WHITELIST values but in
+    # case of new version django_cors_headers they will get override.
+    cors_major_version = int(version('django_cors_headers').split('.')[0])
+    if cors_major_version >= 3 and CORS_ORIGIN_WHITELIST and ENV_TOKENS.get('CORS_ORIGIN_WHITELIST_WITH_SCHEME'):
+        CORS_ORIGIN_WHITELIST = ENV_TOKENS.get('CORS_ORIGIN_WHITELIST_WITH_SCHEME')
+
     CORS_ORIGIN_ALLOW_ALL = ENV_TOKENS.get('CORS_ORIGIN_ALLOW_ALL', False)
     CORS_ALLOW_INSECURE = ENV_TOKENS.get('CORS_ALLOW_INSECURE', False)
     CORS_ALLOW_HEADERS = corsheaders_default_headers + (

lms/djangoapps/experiments/tests/test_views.py

@@ -13,6 +13,7 @@ from django.core.handlers.wsgi import WSGIRequest
 from django.test.utils import override_settings
 from django.urls import reverse
 from django.utils.timezone import now
+from importlib_metadata import version
 from rest_framework.test import APITestCase
 
 from common.djangoapps.student.tests.factories import UserFactory
@@ -260,6 +261,11 @@ class ExperimentCrossDomainTests(APITestCase):
             **kwargs
         )
 
+    def test_white_list_contents_with_cors_header_version(self, *args):  # pylint: disable=unused-argument
+        """ Verify that with django-cor-header<3 it loads list without scheme. """
+        assert settings.CORS_ORIGIN_WHITELIST == ['sandbox.edx.org']
+        assert int(version('django_cors_headers').split('.')[0]) == 2
+
 
 class ExperimentKeyValueViewSetTests(APITestCase):  # lint-amnesty, pylint: disable=missing-class-docstring
 

lms/envs/production.py

@@ -25,6 +25,7 @@ import yaml
 from corsheaders.defaults import default_headers as corsheaders_default_headers
 from django.core.exceptions import ImproperlyConfigured
 from edx_django_utils.plugins import add_plugins
+from importlib.metadata import version
 from path import Path as path
 
 from openedx.core.djangoapps.plugins.constants import ProjectType, SettingsType
@@ -356,6 +357,13 @@ CSRF_TRUSTED_ORIGINS = ENV_TOKENS.get('CSRF_TRUSTED_ORIGINS', [])
 if FEATURES.get('ENABLE_CORS_HEADERS') or FEATURES.get('ENABLE_CROSS_DOMAIN_CSRF_COOKIE'):
     CORS_ALLOW_CREDENTIALS = True
     CORS_ORIGIN_WHITELIST = ENV_TOKENS.get('CORS_ORIGIN_WHITELIST', ())
+
+    # values are already updated above with default CORS_ORIGIN_WHITELIST values but in
+    # case of new version of django_cors_headers they will get override.
+    cors_major_version = int(version('django_cors_headers').split('.')[0])
+    if cors_major_version >= 3 and CORS_ORIGIN_WHITELIST and ENV_TOKENS.get('CORS_ORIGIN_WHITELIST_WITH_SCHEME'):
+        CORS_ORIGIN_WHITELIST = ENV_TOKENS.get('CORS_ORIGIN_WHITELIST_WITH_SCHEME')
+
     CORS_ORIGIN_ALLOW_ALL = ENV_TOKENS.get('CORS_ORIGIN_ALLOW_ALL', False)
     CORS_ALLOW_INSECURE = ENV_TOKENS.get('CORS_ALLOW_INSECURE', False)
     CORS_ALLOW_HEADERS = corsheaders_default_headers + (

lms/envs/test.py

@@ -20,6 +20,7 @@ from uuid import uuid4
 import openid.oidutil
 from django.utils.translation import ugettext_lazy
 from edx_django_utils.plugins import add_plugins
+from importlib.metadata import version
 from path import Path as path
 
 from openedx.core.djangoapps.plugins.constants import ProjectType, SettingsType
@@ -597,3 +598,12 @@ REGISTRATION_RATELIMIT = '5/minute'
 
 RESET_PASSWORD_TOKEN_VALIDATE_API_RATELIMIT = '2/m'
 RESET_PASSWORD_API_RATELIMIT = '2/m'
+
+CORS_ORIGIN_WHITELIST = ['sandbox.edx.org']
+CORS_ORIGIN_WHITELIST_WITH_SCHEME = ['https://sandbox.edx.org']
+
+# values are already updated above with default CORS_ORIGIN_WHITELIST values but in
+# case of new version django_cors_headers they will get override.
+cors_major_version = int(version('django_cors_headers').split('.')[0])
+if cors_major_version >= 3 and CORS_ORIGIN_WHITELIST and CORS_ORIGIN_WHITELIST_WITH_SCHEME:
+    CORS_ORIGIN_WHITELIST = CORS_ORIGIN_WHITELIST_WITH_SCHEME