fix code

api/views/pictorial.py

@@ -28,8 +28,13 @@ class CreatePictorial(BaseView):
             ins_cache.delete(obj)
 
     def get_random_user_id(self):
+        while True:
             index = randint(0, 5000)
-        return self.user_id_start + index
+            user_id = self.user_id_start + index
+            error, data = self.call_rpc('venus/community/user/is_shadow', user_id=user_id)
+            ret = data.get('user_id')
+            if ret:
+                return user_id
 
     def get_user_id(self, id_, platform):
         cache_key = 'grap:{}:{}'.format(platform, id_)