add demo mode middleware

apps/jumpserver/middleware.py

 # ~*~ coding: utf-8 ~*~
 
+import os
 import pytz
 from django.utils import timezone
 from django.utils.deprecation import MiddlewareMixin
+from django.shortcuts import HttpResponse
+
+
+DEMO_MODE = os.environ.get("DEMO_MODE", "")
+SAFE_URL = ["/users/login",]
 
 
 class TimezoneMiddleware(MiddlewareMixin):
@@ -12,3 +18,9 @@ class TimezoneMiddleware(MiddlewareMixin):
             timezone.activate(pytz.timezone(tzname))
         else:
             timezone.deactivate()
+
+
+class DemoMiddleware(MiddlewareMixin):
+    def process_request(self, request):
+        if DEMO_MODE and request.method not in ["GET", "HEAD"] and request.path not in SAFE_URL:
+                return HttpResponse("Demo mode, only get request accept", 403)

apps/jumpserver/settings.py

@@ -79,6 +79,7 @@ MIDDLEWARE = [
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
     'jumpserver.middleware.TimezoneMiddleware',
+    'jumpserver.middleware.DemoMiddleware',
 ]
 
 ROOT_URLCONF = 'jumpserver.urls'