Add setting to allow MLC registration only (#1259)

* Adds a setting to registration visibility to allow for MLC registration while registration is disabled

CTFd/auth.py

@@ -11,6 +11,7 @@ from CTFd.utils import config, email, get_app_config, get_config
 from CTFd.utils import user as current_user
 from CTFd.utils import validators
 from CTFd.utils.config import is_teams_mode
+from CTFd.utils.config.integrations import mlc_registration
 from CTFd.utils.config.visibility import registration_visible
 from CTFd.utils.crypto import verify_password
 from CTFd.utils.decorators import ratelimit
@@ -384,7 +385,7 @@ def oauth_redirect():
             user = Users.query.filter_by(email=user_email).first()
             if user is None:
                 # Check if we are allowing registration before creating users
-                if registration_visible():
+                if registration_visible() or mlc_registration():
                     user = Users(
                         name=user_name,
                         email=user_email,

CTFd/themes/admin/templates/configs/settings.html

@@ -83,6 +83,9 @@
 				<option value="private" {% if registration_visibility == 'private' %}selected{% endif %}>
 					Private
 				</option>
+				<option value="mlc" {% if registration_visibility == 'mlc' %}selected{% endif %}>
+					MajorLeagueCyber Only
+				</option>
 			</select>
 		</div>
 

CTFd/utils/config/integrations.py

@@ -3,3 +3,8 @@ from CTFd.utils import get_config
 
 def mlc():
     return get_config("oauth_client_id") and get_config("oauth_client_secret")
+
+
+def mlc_registration():
+    v = get_config("registration_visibility")
+    return v == "mlc"

CTFd/utils/config/visibility.py

@@ -40,3 +40,5 @@ def registration_visible():
         return True
     elif v == "private":
         return False
+    else:
+        return False