[enh] mediawiki engine added

searx/engines/mediawiki.py

@@ -0,0 +1,23 @@
+from json import loads
+from urllib import urlencode, quote
+
+url = 'https://en.wikipedia.org/'
+
+number_of_results = 10
+
+def request(query, params):
+    search_url = url + 'w/api.php?action=query&list=search&{query}&srprop=timestamp&format=json'
+    params['url'] = search_url.format(query=urlencode({'srsearch': query}))
+    return params
+
+
+def response(resp):
+    search_results = loads(resp.text)
+    results = []
+    res = search_results.get('query', {}).get('search', [])
+    if not len(res):
+        return results
+    for result in res[:int(number_of_results)]:
+        results.append({'url': url + 'wiki/' + quote(result['title'].replace(' ', '_').encode('utf-8')), 'title': result['title']})
+    return results
+