[mod] searching by selected engines

searx/engines/__init__.py

         results[engine_name] = cb_res
     return process_callback
 
-def search(query, request, selected_categories):
+def search(query, request, selected_engines):
     global engines, categories, number_of_searches
     requests = []
     results = {}
-    selected_engines = []
     number_of_searches += 1
     user_agent = request.headers.get('User-Agent', '')
 
-    if not len(selected_categories):
-        selected_categories = ['general']
-
-    for categ in selected_categories:
-        selected_engines.extend({'category': categ, 'name': x.name} for x in categories[categ])
-
     for selected_engine in selected_engines:
         if selected_engine['name'] not in engines:
             continue

searx/webapp.py

         request_data = request.args
     if not request_data.get('q'):
         return render('index.html')
+
+    query = request_data['q'].encode('utf-8')
+
     selected_categories = []
     for pd_name,pd in request_data.items():
         if pd_name.startswith('category_'):
         for ccateg in cookie_categories:
             if ccateg in categories:
                 selected_categories.append(ccateg)
-    query = request_data['q'].encode('utf-8')
-    results = search(query, request, selected_categories)
+    if not len(selected_categories):
+        selected_categories = ['general']
+
+    selected_engines = []
+    for categ in selected_categories:
+        selected_engines.extend({'category': categ, 'name': x.name} for x in categories[categ])
+
+    results = search(query, request, selected_engines)
     for result in results:
         if len(result['url']) > 74:
             result['pretty_url'] = result['url'][:35] + '[..]' + result['url'][-35:]