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