searxng/searx/engines/google_images.py

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"""
Google (Images)
@website https://www.google.com
@provide-api yes (https://developers.google.com/custom-search/)
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@using-api no
@results HTML chunks with JSON inside
@stable no
@parse url, title, img_src
"""
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from datetime import date, timedelta
from json import loads
from lxml import html
from searx.url_utils import urlencode
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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
time_range_support = True
number_of_results = 100
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search_url = 'https://www.google.com/search'\
'?{query}'\
'&tbm=isch'\
'&yv=2'\
'&{search_options}'
time_range_attr = "qdr:{range}"
time_range_custom_attr = "cdr:1,cd_min:{start},cd_max{end}"
time_range_dict = {'day': 'd',
'week': 'w',
'month': 'm'}
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# do search-request
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def request(query, params):
search_options = {
'ijn': params['pageno'] - 1,
'start': (params['pageno'] - 1) * number_of_results
}
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if params['time_range'] in time_range_dict:
search_options['tbs'] = time_range_attr.format(range=time_range_dict[params['time_range']])
elif params['time_range'] == 'year':
now = date.today()
then = now - timedelta(days=365)
start = then.strftime('%m/%d/%Y')
end = now.strftime('%m/%d/%Y')
search_options['tbs'] = time_range_custom_attr.format(start=start, end=end)
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if safesearch and params['safesearch']:
search_options['safe'] = 'on'
params['url'] = search_url.format(query=urlencode({'q': query}),
search_options=urlencode(search_options))
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return params
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# get response from search-request
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def response(resp):
results = []
dom = html.fromstring(resp.text)
# parse results
for result in dom.xpath('//div[contains(@class, "rg_meta")]/text()'):
try:
metadata = loads(result)
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img_format = metadata.get('ity', '')
img_width = metadata.get('ow', '')
img_height = metadata.get('oh', '')
if img_width and img_height:
img_format += " {0}x{1}".format(img_width, img_height)
source = metadata.get('st', '')
source_url = metadata.get('isu', '')
if source_url:
source += " ({0})".format(source_url)
results.append({'url': metadata['ru'],
'title': metadata['pt'],
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'content': metadata.get('s', ''),
'source': source,
'img_format': img_format,
'thumbnail_src': metadata['tu'],
'img_src': metadata['ou'],
'template': 'images.html'})
except:
continue
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return results