add registration switch env

backend/app/routes.py

@@ -77,6 +77,9 @@ def logout():
 def register():
     if current_user.is_authenticated:
         return redirect(url_for('index'))
+    if not app.config['ALLOW_REGISTRATION'] == "true":
+        flash('Registration temporarily disabled.')
+        return redirect(url_for('login'))
     form = RegistrationForm()
     if form.validate_on_submit():
         user = User(username=form.username.data, email=form.email.data)

backend/config.py

@@ -16,6 +16,7 @@ class Config:
     ADMINS = [os.environ.get('DOTENV_ADMIN_EMAIL')]
     FROM_ADDRESS = os.environ.get('DOTENV_FROM_ADDRESS')
     REAL_HOSTNAME = os.environ.get('DOTENV_REAL_HOSTNAME')
+    ALLOW_REGISTRATION = os.environ.get('DOTENV_ALLOW_REGISTRATION')
 
 
     DC_LOGGING = True