some polishing

shop.py

@@ -22,6 +22,8 @@ CODEFINDER = re.compile(r'\`([^\`]+)\`')
 app = Flask(__name__)
 app.config.from_object(__name__)
 app.config['SESSION_COOKIE_NAME'] = os.getenv('SESSION_COOKIE_NAME', 'mdshop')
+app.config['register'] = os.getenv('ENABLE_REGISTER', 'true') != 'false'
+print(app.config)
 app.wsgi_app = ReverseProxied(app.wsgi_app) 
 
 def connect_db():
@@ -463,6 +465,8 @@ def login():
 @app.route('/register', methods=['GET', 'POST'])
 def register():
     error = None
+    if not app.config['register']:
+        return ""
     if request.method == 'POST':
         import re, string
         pattern = re.compile('[\W]+')