[enh] introduce private engines

This PR adds a new setting to engines named `tokens`.
It expects a list of tokens which lets searx validate
if the request should be accepted or not.

1 files changed, 4 insertions, 1 deletions

diff --git a/searx/search.py b/searx/search.py
index 5c268cc5d..2dcc4c8f7 100644
--- a/searx/search.py
+++ b/searx/search.py
@@ -407,7 +407,7 @@ def get_search_query_from_webapp(preferences, form):
 
     return (SearchQuery(query, query_engines, query_categories,
                         query_lang, query_safesearch, query_pageno,
-                        query_time_range, query_timeout),
+                        query_time_range, query_timeout, preferences),
             raw_text_query)
 
 
@@ -459,6 +459,9 @@ class Search(object):
 
             engine = engines[selected_engine['name']]
 
+            if not search_query.preferences.validate_token(engine):
+                continue
+
             # skip suspended engines
             if engine.suspend_end_time >= time():
                 logger.debug('Engine currently suspended: %s', selected_engine['name'])