Added the ability to disable registration in the config file

config.yaml.dist

@@ -51,6 +51,8 @@ enable_safety: yes
 tag_name_regex: ^\S+$
 tag_category_name_regex: ^[^\s%+#/]+$
 
+# Disable registration by setting false
+registration_enabled: true
 
 # don't make these more restrictive unless you want to annoy people; if you do
 # customize them, make sure to update the instructions in the registration form

server/szurubooru/api/user_api.py

@@ -1,5 +1,5 @@
 from typing import Any, Dict
-from szurubooru import model, search, rest
+from szurubooru import model, search, rest, config, errors
 from szurubooru.func import auth, users, serialization, versions
 
 
@@ -26,6 +26,7 @@ def get_users(
 @rest.routes.post('/users/?')
 def create_user(
         ctx: rest.Context, _params: Dict[str, str] = {}) -> rest.Response:
+    if config.config['registration_enabled']:
         auth.verify_privilege(ctx.user, 'users:create')
         name = ctx.get_param_as_string('name')
         password = ctx.get_param_as_string('password')
@@ -41,6 +42,8 @@ def create_user(
         ctx.session.add(user)
         ctx.session.commit()
         return _serialize(ctx, user, force_show_email=True)
+    else:
+        raise errors.ValidationError('User Registration Disabled')
 
 
 @rest.routes.get('/user/(?P<user_name>[^/]+)/?')