searxng/searx/engines/xpath.py
Markus Heiser ffcebf5e12 [enh] xpath engine - add request parameter 'soft_max_redirects'
Make 'soft_max_redirects' configurable per Xpath engine::

    - name : <engine-name>
      engine : xpath
      soft_max_redirects: 1
      ...

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2021-05-17 15:04:55 +02:00

94 lines
3.3 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-or-later
from lxml import html
from urllib.parse import urlencode
from searx.utils import extract_text, extract_url, eval_xpath, eval_xpath_list
search_url = None
url_xpath = None
content_xpath = None
title_xpath = None
thumbnail_xpath = False
paging = False
suggestion_xpath = ''
results_xpath = ''
cached_xpath = ''
cached_url = ''
soft_max_redirects = 0
# parameters for engines with paging support
#
# number of results on each page
# (only needed if the site requires not a page number, but an offset)
page_size = 1
# number of the first page (usually 0 or 1)
first_page_num = 1
def request(query, params):
query = urlencode({'q': query})[2:]
fp = {'query': query}
if paging and search_url.find('{pageno}') >= 0:
fp['pageno'] = (params['pageno'] - 1) * page_size + first_page_num
params['url'] = search_url.format(**fp)
params['query'] = query
params['soft_max_redirects'] = soft_max_redirects
return params
def response(resp):
results = []
dom = html.fromstring(resp.text)
is_onion = True if 'onions' in categories else False # pylint: disable=undefined-variable
if results_xpath:
for result in eval_xpath_list(dom, results_xpath):
url = extract_url(eval_xpath_list(result, url_xpath, min_len=1), search_url)
title = extract_text(eval_xpath_list(result, title_xpath, min_len=1))
content = extract_text(eval_xpath_list(result, content_xpath, min_len=1))
tmp_result = {'url': url, 'title': title, 'content': content}
# add thumbnail if available
if thumbnail_xpath:
thumbnail_xpath_result = eval_xpath_list(result, thumbnail_xpath)
if len(thumbnail_xpath_result) > 0:
tmp_result['img_src'] = extract_url(thumbnail_xpath_result, search_url)
# add alternative cached url if available
if cached_xpath:
tmp_result['cached_url'] = cached_url\
+ extract_text(eval_xpath_list(result, cached_xpath, min_len=1))
if is_onion:
tmp_result['is_onion'] = True
results.append(tmp_result)
else:
if cached_xpath:
for url, title, content, cached in zip(
(extract_url(x, search_url) for
x in eval_xpath_list(dom, url_xpath)),
map(extract_text, eval_xpath_list(dom, title_xpath)),
map(extract_text, eval_xpath_list(dom, content_xpath)),
map(extract_text, eval_xpath_list(dom, cached_xpath))
):
results.append({'url': url, 'title': title, 'content': content,
'cached_url': cached_url + cached, 'is_onion': is_onion})
else:
for url, title, content in zip(
(extract_url(x, search_url) for
x in eval_xpath_list(dom, url_xpath)),
map(extract_text, eval_xpath_list(dom, title_xpath)),
map(extract_text, eval_xpath_list(dom, content_xpath))
):
results.append({'url': url, 'title': title, 'content': content, 'is_onion': is_onion})
if not suggestion_xpath:
return results
for suggestion in eval_xpath(dom, suggestion_xpath):
results.append({'suggestion': extract_text(suggestion)})
return results