[enh] added google images engine

searx/engines/gimages.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python
+
+from urllib import quote
+from lxml import html
+from urlparse import urljoin
+
+categories = ['test']
+
+base_url = 'https://www.google.com/'
+search_url = base_url+'search?tbm=isch&hl=en&q='
+
+def request(query, params):
+    global search_url
+    query = quote(query.replace(' ', '+'), safe='+')
+    params['url'] = search_url + query
+    return params
+
+def response(resp):
+    global base_url
+    results = []
+    dom = html.fromstring(resp.text)
+    for result in dom.xpath('//table[@class="images_table"]//a'):
+        url = urljoin(base_url, result.attrib.get('href'))
+        img = result.xpath('.//img')[0]
+        title = ' '.join(result.xpath('..//text()'))
+        content = '<img src="%s" alt="%s" />' % (img.attrib.get('src', ''), title)
+        results.append({'url': url, 'title': title, 'content': content})
+    return results