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searxng/searx/engines/duckduckgo_images.py
Alexandre Flament d14994dc73 [httpx] replace searx.poolrequests by searx.network
settings.yml:

* outgoing.networks:
   * can contains network definition
   * propertiers: enable_http, verify, http2, max_connections, max_keepalive_connections,
     keepalive_expiry, local_addresses, support_ipv4, support_ipv6, proxies, max_redirects, retries
   * retries: 0 by default, number of times searx retries to send the HTTP request (using different IP & proxy each time)
   * local_addresses can be "192.168.0.1/24" (it supports IPv6)
   * support_ipv4 & support_ipv6: both True by default
     see https://github.com/searx/searx/pull/1034
* each engine can define a "network" section:
   * either a full network description
   * either reference an existing network

* all HTTP requests of engine use the same HTTP configuration (it was not the case before, see proxy configuration in master)
2021-04-12 17:25:56 +02:00

95 lines
2.8 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-or-later
"""
DuckDuckGo (Images)
"""
from json import loads
from urllib.parse import urlencode
from searx.exceptions import SearxEngineAPIException
from searx.engines.duckduckgo import get_region_code
from searx.engines.duckduckgo import _fetch_supported_languages, supported_languages_url # NOQA # pylint: disable=unused-import
from searx.network import get
# about
about = {
"website": 'https://duckduckgo.com/',
"wikidata_id": 'Q12805',
"official_api_documentation": {
'url': 'https://duckduckgo.com/api',
'comment': 'but images are not supported',
},
"use_official_api": False,
"require_api_key": False,
"results": 'JSON (site requires js to get images)',
}
# engine dependent config
categories = ['images']
paging = True
safesearch = True
# search-url
images_url = 'https://duckduckgo.com/i.js?{query}&s={offset}&p={safesearch}&o=json&vqd={vqd}'
site_url = 'https://duckduckgo.com/?{query}&iar=images&iax=1&ia=images'
# run query in site to get vqd number needed for requesting images
# TODO: find a way to get this number without an extra request (is it a hash of the query?)
def get_vqd(query, headers):
query_url = site_url.format(query=urlencode({'q': query}))
res = get(query_url, headers=headers)
content = res.text
if content.find('vqd=\'') == -1:
raise SearxEngineAPIException('Request failed')
vqd = content[content.find('vqd=\'') + 5:]
vqd = vqd[:vqd.find('\'')]
return vqd
# do search-request
def request(query, params):
# to avoid running actual external requests when testing
if 'is_test' not in params:
vqd = get_vqd(query, params['headers'])
else:
vqd = '12345'
offset = (params['pageno'] - 1) * 50
safesearch = params['safesearch'] - 1
region_code = get_region_code(params['language'], lang_list=supported_languages)
if region_code:
params['url'] = images_url.format(
query=urlencode({'q': query, 'l': region_code}), offset=offset, safesearch=safesearch, vqd=vqd)
else:
params['url'] = images_url.format(
query=urlencode({'q': query}), offset=offset, safesearch=safesearch, vqd=vqd)
return params
# get response from search-request
def response(resp):
results = []
content = resp.text
res_json = loads(content)
# parse results
for result in res_json['results']:
title = result['title']
url = result['url']
thumbnail = result['thumbnail']
image = result['image']
# append result
results.append({'template': 'images.html',
'title': title,
'content': '',
'thumbnail_src': thumbnail,
'img_src': image,
'url': url})
return results