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searxng/searx/engines/google_images.py
2017-06-13 19:47:56 +02:00

96 lines
2.5 KiB
Python

"""
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 datetime import date, timedelta
from json import loads
from lxml import html
from searx.url_utils import urlencode
# engine dependent config
categories = ['images']
paging = True
safesearch = True
time_range_support = True
number_of_results = 100
search_url = 'https://www.google.com/search'\
'?{query}'\
'&asearch=ichunk'\
'&async=_id:rg_s,_pms:s'\
'&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'}
# do search-request
def request(query, params):
search_options = {
'ijn': params['pageno'] - 1,
'start': (params['pageno'] - 1) * number_of_results
}
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)
if safesearch and params['safesearch']:
search_options['safe'] = 'on'
params['url'] = search_url.format(query=urlencode({'q': query}),
search_options=urlencode(search_options))
return params
# get response from search-request
def response(resp):
results = []
g_result = loads(resp.text)
dom = html.fromstring(g_result[1][1])
# parse results
for result in dom.xpath('//div[@data-ved]'):
try:
metadata = loads(''.join(result.xpath('./div[contains(@class, "rg_meta")]/text()')))
except:
continue
thumbnail_src = metadata['tu']
# http to https
thumbnail_src = thumbnail_src.replace("http://", "https://")
# append result
results.append({'url': metadata['ru'],
'title': metadata['pt'],
'content': metadata['s'],
'thumbnail_src': thumbnail_src,
'img_src': metadata['ou'],
'template': 'images.html'})
# return results
return results