[extensions-web/feature/custom-user-class: 1/2] settings: allow to configure CORS using environment variable

[Yuri Konotopov <ykonotopov src gnome org>]

commit 4a50df3b343eefa0165423c09de420134dc16976
Author: Yuri Konotopov <ykonotopov gnome org>
Date:   Sun May 22 12:15:54 2022 +0400

    settings: allow to configure CORS using environment variable

 sweettooth/settings.py | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)
---
diff --git a/sweettooth/settings.py b/sweettooth/settings.py
index 6b9ef4a..aa5ecd1 100644
--- a/sweettooth/settings.py
+++ b/sweettooth/settings.py
@@ -67,6 +67,11 @@ MIDDLEWARE = (
     'django.contrib.messages.middleware.MessageMiddleware',
 )
 
+if 'EGO_CORS_ORIGINS' in os.environ:
+    MIDDLEWARE = ('corsheaders.middleware.CorsMiddleware',) + MIDDLEWARE
+    INSTALLED_APPS + INSTALLED_APPS + ('corsheaders',)
+    CORS_ORIGIN_WHITELIST = list(map(str.strip, os.environ['EGO_CORS_ORIGINS'].split(",")))
+
 AUTHENTICATION_BACKENDS = ['sweettooth.auth.backends.LoginEmailAuthentication']
 
 SECURE_BROWSER_XSS_FILTER = True
@@ -182,19 +187,11 @@ if os.getenv('EGO_EMAIL_URL'):
 NO_SECURE_SETTINGS = True if os.getenv('EGO_NO_SECURE_SETTINGS') else False
 NO_STATICFILES_SETTINGS = False
 
-APPEND_INSTALLED_APPS = PREPEND_MIDDLEWARE = ()
-
 try:
     from local_settings import *
 except ImportError:
     pass
 
-if APPEND_INSTALLED_APPS:
-    INSTALLED_APPS += APPEND_INSTALLED_APPS
-
-if PREPEND_MIDDLEWARE:
-    MIDDLEWARE = PREPEND_MIDDLEWARE + MIDDLEWARE
-
 # Enable secure settings in case DEBUG is disabled and NO_SECURE_SETTINGS is not set to True
 if not DEBUG and not NO_SECURE_SETTINGS:
     CSRF_COOKIE_SECURE = True