mirror of
https://github.com/searxng/searxng
synced 2024-01-01 19:24:07 +01:00
86b4d2f2d0
We have been using a static type checker (pyright) for a long time, but its check was not yet a prerequisite for passing the quality gate. It was checked in the CI, but the error messages were only logged. As is always the case in life, with checks that you have to do but which have no consequences; you neglect them :-) We didn't activate the checks back then because we (even today) have too much monkey patching in our code (not only in the engines, httpx and others objects are also affected). We want to replace monkey patching with clear interfaces for a long time, the basis for this is increased typing and we can only achieve this if we make type checking an integral part of the quality gate. This PR activates the type check; in order to pass the check, a few typings were corrected in the code, but most type inconsistencies were deactivated via inline comments. This was particularly necessary in places where the code uses properties that stick to the objects (monkey patching). The sticking of properties only happens in a few places, but the access to these properties extends over the entire code, which is why there are many `# type: ignore` markers in the code ... which we will hopefully be able to remove again successively in the future. Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
264 lines
8 KiB
Python
264 lines
8 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
|
|
"""Presearch supports the search types listed in :py:obj:`search_type` (general,
|
|
images, videos, news).
|
|
|
|
Configured ``presarch`` engines:
|
|
|
|
.. code:: yaml
|
|
|
|
- name: presearch
|
|
engine: presearch
|
|
search_type: search
|
|
categories: [general, web]
|
|
|
|
- name: presearch images
|
|
...
|
|
search_type: images
|
|
categories: [images, web]
|
|
|
|
- name: presearch videos
|
|
...
|
|
search_type: videos
|
|
categories: [general, web]
|
|
|
|
- name: presearch news
|
|
...
|
|
search_type: news
|
|
categories: [news, web]
|
|
|
|
.. hint::
|
|
|
|
By default Presearch's video category is intentionally placed into::
|
|
|
|
categories: [general, web]
|
|
|
|
|
|
Search type ``video``
|
|
=====================
|
|
|
|
The results in the video category are most often links to pages that contain a
|
|
video, for instance many links from Preasearch's video category link content
|
|
from facebook (aka Meta) or Twitter (aka X). Since these are not real links to
|
|
video streams SearXNG can't use the video template for this and if SearXNG can't
|
|
use this template, then the user doesn't want to see these hits in the videos
|
|
category.
|
|
|
|
|
|
Languages & Regions
|
|
===================
|
|
|
|
In Presearch there are languages for the UI and regions for narrowing down the
|
|
search. If we set "auto" for the region in the WEB-UI of Presearch and cookie
|
|
``use_local_search_results=false``, then the defaults are set for both (the
|
|
language and the region) from the ``Accept-Language`` header.
|
|
|
|
Since the region is already "auto" by default, we only need to set the
|
|
``use_local_search_results`` cookie and send the ``Accept-Language`` header. We
|
|
have to set these values in both requests we send to Presearch; in the first
|
|
request to get the request-ID from Presearch and in the final request to get the
|
|
result list (see ``send_accept_language_header``).
|
|
|
|
|
|
Implementations
|
|
===============
|
|
|
|
"""
|
|
|
|
from urllib.parse import urlencode
|
|
from searx import locales
|
|
from searx.network import get
|
|
from searx.utils import gen_useragent, html_to_text
|
|
|
|
about = {
|
|
"website": "https://presearch.io",
|
|
"wikidiata_id": "Q7240905",
|
|
"official_api_documentation": "https://docs.presearch.io/nodes/api",
|
|
"use_official_api": False,
|
|
"require_api_key": False,
|
|
"results": "JSON",
|
|
}
|
|
paging = True
|
|
safesearch = True
|
|
time_range_support = True
|
|
send_accept_language_header = True
|
|
categories = ["general", "web"] # general, images, videos, news
|
|
|
|
search_type = "search"
|
|
"""must be any of ``search``, ``images``, ``videos``, ``news``"""
|
|
|
|
base_url = "https://presearch.com"
|
|
safesearch_map = {0: 'false', 1: 'true', 2: 'true'}
|
|
|
|
|
|
def init(_):
|
|
if search_type not in ['search', 'images', 'videos', 'news']:
|
|
raise ValueError(f'presearch search_type: {search_type}')
|
|
|
|
|
|
def _get_request_id(query, params):
|
|
|
|
args = {
|
|
"q": query,
|
|
"page": params["pageno"],
|
|
}
|
|
|
|
if params["time_range"]:
|
|
args["time"] = params["time_range"]
|
|
|
|
url = f"{base_url}/{search_type}?{urlencode(args)}"
|
|
|
|
headers = {
|
|
'User-Agent': gen_useragent(),
|
|
'Cookie': (
|
|
f"b=1;"
|
|
f" presearch_session=;"
|
|
f" use_local_search_results=false;"
|
|
f" use_safe_search={safesearch_map[params['safesearch']]}"
|
|
),
|
|
}
|
|
if params['searxng_locale'] != 'all':
|
|
l = locales.get_locale(params['searxng_locale'])
|
|
|
|
# Presearch narrows down the search by region. In SearXNG when the user
|
|
# does not set a region (e.g. 'en-CA' / canada) we cannot hand over a region.
|
|
|
|
# We could possibly use searx.locales.get_official_locales to determine
|
|
# in which regions this language is an official one, but then we still
|
|
# wouldn't know which region should be given more weight / Presearch
|
|
# performs an IP-based geolocation of the user, we don't want that in
|
|
# SearXNG ;-)
|
|
|
|
if l and l.territory:
|
|
headers['Accept-Language'] = f"{l.language}-{l.territory},{l.language};" "q=0.9,*;" "q=0.5"
|
|
|
|
resp_text = get(url, headers=headers).text # type: ignore
|
|
|
|
for line in resp_text.split("\n"):
|
|
if "window.searchId = " in line:
|
|
return line.split("= ")[1][:-1].replace('"', "")
|
|
|
|
return None
|
|
|
|
|
|
def request(query, params):
|
|
request_id = _get_request_id(query, params)
|
|
params["headers"]["Accept"] = "application/json"
|
|
params["url"] = f"{base_url}/results?id={request_id}"
|
|
|
|
return params
|
|
|
|
|
|
def _strip_leading_strings(text):
|
|
for x in ['wikipedia', 'google']:
|
|
if text.lower().endswith(x):
|
|
text = text[: -len(x)]
|
|
return text.strip()
|
|
|
|
|
|
def parse_search_query(json_results):
|
|
results = []
|
|
|
|
for item in json_results.get('specialSections', {}).get('topStoriesCompact', {}).get('data', []):
|
|
result = {
|
|
'url': item['link'],
|
|
'title': item['title'],
|
|
'img_src': item['image'],
|
|
'content': '',
|
|
'metadata': item.get('source'),
|
|
}
|
|
results.append(result)
|
|
|
|
for item in json_results.get('standardResults', []):
|
|
result = {
|
|
'url': item['link'],
|
|
'title': item['title'],
|
|
'content': html_to_text(item['description']),
|
|
}
|
|
results.append(result)
|
|
|
|
info = json_results.get('infoSection', {}).get('data')
|
|
if info:
|
|
attributes = []
|
|
for item in info.get('about', []):
|
|
|
|
text = html_to_text(item)
|
|
if ':' in text:
|
|
# split text into key / value
|
|
label, value = text.split(':', 1)
|
|
else:
|
|
# In other languages (tested with zh-TW) a colon is represented
|
|
# by a different symbol --> then we split at the first space.
|
|
label, value = text.split(' ', 1)
|
|
label = label[:-1]
|
|
|
|
value = _strip_leading_strings(value)
|
|
attributes.append({'label': label, 'value': value})
|
|
content = []
|
|
for item in [info.get('subtitle'), info.get('description')]:
|
|
if not item:
|
|
continue
|
|
item = _strip_leading_strings(html_to_text(item))
|
|
if item:
|
|
content.append(item)
|
|
|
|
results.append(
|
|
{
|
|
'infobox': info['title'],
|
|
'id': info['title'],
|
|
'img_src': info.get('image'),
|
|
'content': ' | '.join(content),
|
|
'attributes': attributes,
|
|
}
|
|
)
|
|
return results
|
|
|
|
|
|
def response(resp):
|
|
results = []
|
|
json_resp = resp.json()
|
|
|
|
if search_type == 'search':
|
|
results = parse_search_query(json_resp.get('results'))
|
|
|
|
elif search_type == 'images':
|
|
for item in json_resp.get('images', []):
|
|
results.append(
|
|
{
|
|
'template': 'images.html',
|
|
'title': item['title'],
|
|
'url': item.get('link'),
|
|
'img_src': item.get('image'),
|
|
'thumbnail_src': item.get('thumbnail'),
|
|
}
|
|
)
|
|
|
|
elif search_type == 'videos':
|
|
# The results in the video category are most often links to pages that contain
|
|
# a video and not to a video stream --> SearXNG can't use the video template.
|
|
|
|
for item in json_resp.get('videos', []):
|
|
metadata = [x for x in [item.get('description'), item.get('duration')] if x]
|
|
results.append(
|
|
{
|
|
'title': item['title'],
|
|
'url': item.get('link'),
|
|
'content': '',
|
|
'metadata': ' / '.join(metadata),
|
|
'img_src': item.get('image'),
|
|
}
|
|
)
|
|
|
|
elif search_type == 'news':
|
|
for item in json_resp.get('news', []):
|
|
metadata = [x for x in [item.get('source'), item.get('time')] if x]
|
|
results.append(
|
|
{
|
|
'title': item['title'],
|
|
'url': item.get('link'),
|
|
'content': item.get('description', ''),
|
|
'metadata': ' / '.join(metadata),
|
|
'img_src': item.get('image'),
|
|
}
|
|
)
|
|
|
|
return results
|