mirror of https://github.com/searxng/searxng.git
421 lines
12 KiB
Python
421 lines
12 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
|
|
# lint: pylint
|
|
"""Brave supports the categories listed in :py:obj:`brave_category` (General,
|
|
news, videos, images). The support of :py:obj:`paging` and :py:obj:`time range
|
|
<time_range_support>` is limited (see remarks).
|
|
|
|
Configured ``brave`` engines:
|
|
|
|
.. code:: yaml
|
|
|
|
- name: brave
|
|
engine: brave
|
|
...
|
|
brave_category: search
|
|
time_range_support: true
|
|
paging: true
|
|
|
|
- name: brave.images
|
|
engine: brave
|
|
...
|
|
brave_category: images
|
|
|
|
- name: brave.videos
|
|
engine: brave
|
|
...
|
|
brave_category: videos
|
|
|
|
- name: brave.news
|
|
engine: brave
|
|
...
|
|
brave_category: news
|
|
|
|
|
|
.. _brave regions:
|
|
|
|
Brave regions
|
|
=============
|
|
|
|
Brave uses two-digit tags for the regions like ``ca`` while SearXNG deals with
|
|
locales. To get a mapping, all *officatl de-facto* languages of the Brave
|
|
region are mapped to regions in SearXNG (see :py:obj:`babel
|
|
<babel.languages.get_official_languages>`):
|
|
|
|
.. code:: python
|
|
|
|
"regions": {
|
|
..
|
|
"en-CA": "ca",
|
|
"fr-CA": "ca",
|
|
..
|
|
}
|
|
|
|
|
|
.. note::
|
|
|
|
The language (aka region) support of Brave's index is limited to very basic
|
|
languages. The search results for languages like Chinese or Arabic are of
|
|
low quality.
|
|
|
|
|
|
.. _brave languages:
|
|
|
|
Brave languages
|
|
===============
|
|
|
|
Brave's language support is limited to the UI (menues, area local notations,
|
|
etc). Brave's index only seems to support a locale, but it does not seem to
|
|
support any languages in its index. The choice of available languages is very
|
|
small (and its not clear to me where the differencee in UI is when switching
|
|
from en-us to en-ca or en-gb).
|
|
|
|
In the :py:obj:`EngineTraits object <searx.enginelib.traits.EngineTraits>` the
|
|
UI languages are stored in a custom field named ``ui_lang``:
|
|
|
|
.. code:: python
|
|
|
|
"custom": {
|
|
"ui_lang": {
|
|
"ca": "ca",
|
|
"de-DE": "de-de",
|
|
"en-CA": "en-ca",
|
|
"en-GB": "en-gb",
|
|
"en-US": "en-us",
|
|
"es": "es",
|
|
"fr-CA": "fr-ca",
|
|
"fr-FR": "fr-fr",
|
|
"ja-JP": "ja-jp",
|
|
"pt-BR": "pt-br",
|
|
"sq-AL": "sq-al"
|
|
}
|
|
},
|
|
|
|
Implementations
|
|
===============
|
|
|
|
"""
|
|
|
|
from typing import TYPE_CHECKING
|
|
|
|
import re
|
|
from urllib.parse import (
|
|
urlencode,
|
|
urlparse,
|
|
parse_qs,
|
|
)
|
|
|
|
import chompjs
|
|
from lxml import html
|
|
|
|
from searx import locales
|
|
from searx.utils import (
|
|
extract_text,
|
|
eval_xpath_list,
|
|
eval_xpath_getindex,
|
|
)
|
|
from searx.enginelib.traits import EngineTraits
|
|
|
|
if TYPE_CHECKING:
|
|
import logging
|
|
|
|
logger: logging.Logger
|
|
|
|
traits: EngineTraits
|
|
|
|
about = {
|
|
"website": 'https://search.brave.com/',
|
|
"wikidata_id": 'Q22906900',
|
|
"official_api_documentation": None,
|
|
"use_official_api": False,
|
|
"require_api_key": False,
|
|
"results": 'HTML',
|
|
}
|
|
|
|
base_url = "https://search.brave.com/"
|
|
categories = []
|
|
brave_category = 'search'
|
|
"""Brave supports common web-search, video search, image and video search.
|
|
|
|
- ``search``: Common WEB search
|
|
- ``videos``: search for videos
|
|
- ``images``: search for images
|
|
- ``news``: search for news
|
|
"""
|
|
|
|
brave_spellcheck = False
|
|
"""Brave supports some kind of spell checking. When activated, Brave tries to
|
|
fix typos, e.g. it searches for ``food`` when the user queries for ``fooh``. In
|
|
the UI of Brave the user gets warned about this, since we can not warn the user
|
|
in SearXNG, the spellchecking is disabled by default.
|
|
"""
|
|
|
|
send_accept_language_header = True
|
|
paging = False
|
|
"""Brave only supports paging in :py:obj:`brave_category` ``search`` (UI
|
|
category All)."""
|
|
|
|
safesearch = True
|
|
safesearch_map = {2: 'strict', 1: 'moderate', 0: 'off'} # cookie: safesearch=off
|
|
|
|
time_range_support = False
|
|
"""Brave only supports time-range in :py:obj:`brave_category` ``search`` (UI
|
|
category All)."""
|
|
|
|
time_range_map = {
|
|
'day': 'pd',
|
|
'week': 'pw',
|
|
'month': 'pm',
|
|
'year': 'py',
|
|
}
|
|
|
|
|
|
def request(query, params):
|
|
|
|
# Don't accept br encoding / see https://github.com/searxng/searxng/pull/1787
|
|
params['headers']['Accept-Encoding'] = 'gzip, deflate'
|
|
|
|
args = {
|
|
'q': query,
|
|
}
|
|
if brave_spellcheck:
|
|
args['spellcheck'] = '1'
|
|
|
|
if brave_category == 'search':
|
|
if params.get('pageno', 1) - 1:
|
|
args['offset'] = params.get('pageno', 1) - 1
|
|
if time_range_map.get(params['time_range']):
|
|
args['tf'] = time_range_map.get(params['time_range'])
|
|
|
|
params["url"] = f"{base_url}{brave_category}?{urlencode(args)}"
|
|
|
|
# set properties in the cookies
|
|
|
|
params['cookies']['safesearch'] = safesearch_map.get(params['safesearch'], 'off')
|
|
# the useLocation is IP based, we use cookie 'country' for the region
|
|
params['cookies']['useLocation'] = '0'
|
|
params['cookies']['summarizer'] = '0'
|
|
|
|
engine_region = traits.get_region(params['searxng_locale'], 'all')
|
|
params['cookies']['country'] = engine_region.split('-')[-1].lower() # type: ignore
|
|
|
|
ui_lang = locales.get_engine_locale(params['searxng_locale'], traits.custom["ui_lang"], 'en-us')
|
|
params['cookies']['ui_lang'] = ui_lang
|
|
|
|
logger.debug("cookies %s", params['cookies'])
|
|
|
|
|
|
def response(resp):
|
|
|
|
if brave_category == 'search':
|
|
return _parse_search(resp)
|
|
|
|
datastr = ""
|
|
for line in resp.text.split("\n"):
|
|
if "const data = " in line:
|
|
datastr = line.replace("const data = ", "").strip()[:-1]
|
|
break
|
|
|
|
json_data = chompjs.parse_js_object(datastr)
|
|
json_resp = json_data[1]['data']['body']['response']
|
|
|
|
if brave_category == 'news':
|
|
json_resp = json_resp['news']
|
|
return _parse_news(json_resp)
|
|
|
|
if brave_category == 'images':
|
|
return _parse_images(json_resp)
|
|
if brave_category == 'videos':
|
|
return _parse_videos(json_resp)
|
|
|
|
raise ValueError(f"Unsupported brave category: {brave_category}")
|
|
|
|
|
|
def _parse_search(resp):
|
|
|
|
result_list = []
|
|
dom = html.fromstring(resp.text)
|
|
|
|
answer_tag = eval_xpath_getindex(dom, '//div[@class="answer"]', 0, default=None)
|
|
if answer_tag:
|
|
url = eval_xpath_getindex(dom, '//div[@id="featured_snippet"]/a[@class="result-header"]/@href', 0, default=None)
|
|
result_list.append({'answer': extract_text(answer_tag), 'url': url})
|
|
|
|
# xpath_results = '//div[contains(@class, "snippet fdb") and @data-type="web"]'
|
|
xpath_results = '//div[contains(@class, "snippet")]'
|
|
|
|
for result in eval_xpath_list(dom, xpath_results):
|
|
|
|
url = eval_xpath_getindex(result, './/a[@class="result-header"]/@href', 0, default=None)
|
|
title_tag = eval_xpath_getindex(result, './/span[@class="snippet-title"]', 0, default=None)
|
|
if not (url and title_tag):
|
|
continue
|
|
|
|
content_tag = eval_xpath_getindex(result, './/p[@class="snippet-description"]', 0, default='')
|
|
img_src = eval_xpath_getindex(result, './/img[@class="thumb"]/@src', 0, default='')
|
|
|
|
item = {
|
|
'url': url,
|
|
'title': extract_text(title_tag),
|
|
'content': extract_text(content_tag),
|
|
'img_src': img_src,
|
|
}
|
|
|
|
video_tag = eval_xpath_getindex(
|
|
result, './/div[contains(@class, "video-snippet") and @data-macro="video"]', 0, default=None
|
|
)
|
|
if video_tag is not None:
|
|
|
|
# In my tests a video tag in the WEB search was mostoften not a
|
|
# video, except the ones from youtube ..
|
|
|
|
iframe_src = _get_iframe_src(url)
|
|
if iframe_src:
|
|
item['iframe_src'] = iframe_src
|
|
item['template'] = 'videos.html'
|
|
item['thumbnail'] = eval_xpath_getindex(video_tag, './/img/@src', 0, default='')
|
|
else:
|
|
item['img_src'] = eval_xpath_getindex(video_tag, './/img/@src', 0, default='')
|
|
|
|
result_list.append(item)
|
|
|
|
return result_list
|
|
|
|
|
|
def _get_iframe_src(url):
|
|
parsed_url = urlparse(url)
|
|
if parsed_url.path == '/watch' and parsed_url.query:
|
|
video_id = parse_qs(parsed_url.query).get('v', []) # type: ignore
|
|
if video_id:
|
|
return 'https://www.youtube-nocookie.com/embed/' + video_id[0] # type: ignore
|
|
return None
|
|
|
|
|
|
def _parse_news(json_resp):
|
|
result_list = []
|
|
|
|
for result in json_resp["results"]:
|
|
item = {
|
|
'url': result['url'],
|
|
'title': result['title'],
|
|
'content': result['description'],
|
|
}
|
|
if result['thumbnail'] != "null":
|
|
item['img_src'] = result['thumbnail']['src']
|
|
result_list.append(item)
|
|
|
|
return result_list
|
|
|
|
|
|
def _parse_images(json_resp):
|
|
result_list = []
|
|
|
|
for result in json_resp["results"]:
|
|
item = {
|
|
'url': result['url'],
|
|
'title': result['title'],
|
|
'content': result['description'],
|
|
'template': 'images.html',
|
|
'img_format': result['properties']['format'],
|
|
'source': result['source'],
|
|
'img_src': result['properties']['url'],
|
|
}
|
|
result_list.append(item)
|
|
|
|
return result_list
|
|
|
|
|
|
def _parse_videos(json_resp):
|
|
result_list = []
|
|
|
|
for result in json_resp["results"]:
|
|
|
|
url = result['url']
|
|
item = {
|
|
'url': url,
|
|
'title': result['title'],
|
|
'content': result['description'],
|
|
'template': 'videos.html',
|
|
'length': result['video']['duration'],
|
|
'duration': result['video']['duration'],
|
|
}
|
|
|
|
if result['thumbnail'] != "null":
|
|
item['thumbnail'] = result['thumbnail']['src']
|
|
|
|
iframe_src = _get_iframe_src(url)
|
|
if iframe_src:
|
|
item['iframe_src'] = iframe_src
|
|
|
|
result_list.append(item)
|
|
|
|
return result_list
|
|
|
|
|
|
def fetch_traits(engine_traits: EngineTraits):
|
|
"""Fetch :ref:`languages <brave languages>` and :ref:`regions <brave
|
|
regions>` from Brave."""
|
|
|
|
# pylint: disable=import-outside-toplevel
|
|
|
|
import babel.languages
|
|
from searx.locales import region_tag, language_tag
|
|
from searx.network import get # see https://github.com/searxng/searxng/issues/762
|
|
|
|
engine_traits.custom["ui_lang"] = {}
|
|
|
|
headers = {
|
|
'Accept-Encoding': 'gzip, deflate',
|
|
}
|
|
lang_map = {'no': 'nb'} # norway
|
|
|
|
# languages (UI)
|
|
|
|
resp = get('https://search.brave.com/settings', headers=headers)
|
|
|
|
if not resp.ok: # type: ignore
|
|
print("ERROR: response from Brave is not OK.")
|
|
dom = html.fromstring(resp.text) # type: ignore
|
|
|
|
for option in dom.xpath('//div[@id="language-select"]//option'):
|
|
|
|
ui_lang = option.get('value')
|
|
try:
|
|
if '-' in ui_lang:
|
|
sxng_tag = region_tag(babel.Locale.parse(ui_lang, sep='-'))
|
|
else:
|
|
sxng_tag = language_tag(babel.Locale.parse(ui_lang))
|
|
|
|
except babel.UnknownLocaleError:
|
|
print("ERROR: can't determine babel locale of Brave's (UI) language %s" % ui_lang)
|
|
continue
|
|
|
|
conflict = engine_traits.custom["ui_lang"].get(sxng_tag)
|
|
if conflict:
|
|
if conflict != ui_lang:
|
|
print("CONFLICT: babel %s --> %s, %s" % (sxng_tag, conflict, ui_lang))
|
|
continue
|
|
engine_traits.custom["ui_lang"][sxng_tag] = ui_lang
|
|
|
|
# search regions of brave
|
|
|
|
engine_traits.all_locale = 'all'
|
|
|
|
for country in dom.xpath('//div[@id="sidebar"]//ul/li/div[contains(@class, "country")]'):
|
|
|
|
flag = country.xpath('./span[contains(@class, "flag")]')[0]
|
|
# country_name = extract_text(flag.xpath('./following-sibling::*')[0])
|
|
country_tag = re.search(r'flag-([^\s]*)\s', flag.xpath('./@class')[0]).group(1) # type: ignore
|
|
|
|
# add offical languages of the country ..
|
|
for lang_tag in babel.languages.get_official_languages(country_tag, de_facto=True):
|
|
lang_tag = lang_map.get(lang_tag, lang_tag)
|
|
sxng_tag = region_tag(babel.Locale.parse('%s_%s' % (lang_tag, country_tag.upper())))
|
|
# print("%-20s: %s <-- %s" % (country_name, country_tag, sxng_tag))
|
|
|
|
conflict = engine_traits.regions.get(sxng_tag)
|
|
if conflict:
|
|
if conflict != country_tag:
|
|
print("CONFLICT: babel %s --> %s, %s" % (sxng_tag, conflict, country_tag))
|
|
continue
|
|
engine_traits.regions[sxng_tag] = country_tag
|