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"""
Google (Images)
@website https://www.google.com
@provide-api yes (https://developers.google.com/custom-search/)
@using-api no
@results HTML chunks with JSON inside
@stable no
@parse url, title, img_src
"""
from urllib import urlencode
from urlparse import parse_qs
from json import loads
from lxml import html
# engine dependent config
categories = ['images']
paging = True
safesearch = True
search_url = 'https://www.google.com/search'\
'?{query}'\
'&tbm=isch'\
'&ijn=1'\
'&start={offset}'
# do search-request
def request(query, params):
offset = (params['pageno'] - 1) * 100
params['url'] = search_url.format(query=urlencode({'q': query}),
offset=offset,
safesearch=safesearch)
if safesearch and params['safesearch']:
params['url'] += '&' + urlencode({'safe': 'active'})
return params
# get response from search-request
def response(resp):
results = []
dom = html.fromstring(resp.text)
# parse results
for result in dom.xpath('//div[@data-ved]'):
data_url = result.xpath('./a/@href')[0]
data_query = {k: v[0] for k, v in parse_qs(data_url.split('?', 1)[1]).iteritems()}
metadata = loads(result.xpath('./div[@class="rg_meta"]/text()')[0])
thumbnail_src = metadata['tu']
# http to https
thumbnail_src = thumbnail_src.replace("http://", "https://")
# append result
results.append({'url': data_query['imgrefurl'],
'title': metadata['pt'],
'content': metadata['s'],
'thumbnail_src': metadata['tu'],
'img_src': data_query['imgurl'],
'template': 'images.html'})
# return results
print len(results)
return results
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