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|
# SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint
"""Qwant (Web, News, Images, Videos)
This engine uses the Qwant API (https://api.qwant.com/v3). The API is
undocumented but can be reverse engineered by reading the network log of
https://www.qwant.com/ queries.
This implementation is used by different qwant engines in the settings.yml::
- name: qwant
categories: general
...
- name: qwant news
categories: news
...
- name: qwant images
categories: images
...
- name: qwant videos
categories: videos
...
"""
from datetime import (
datetime,
timedelta,
)
from json import loads
from urllib.parse import urlencode
from flask_babel import gettext
from searx.utils import match_language
from searx.exceptions import SearxEngineAPIException
from searx.raise_for_httperror import raise_for_httperror
# about
about = {
"website": 'https://www.qwant.com/',
"wikidata_id": 'Q14657870',
"official_api_documentation": None,
"use_official_api": True,
"require_api_key": False,
"results": 'JSON',
}
# engine dependent config
categories = []
paging = True
supported_languages_url = about['website']
category_to_keyword = {
'general': 'web',
'news': 'news',
'images': 'images',
'videos': 'videos',
}
# search-url
url = 'https://api.qwant.com/v3/search/{keyword}?{query}&count={count}&offset={offset}'
def request(query, params):
"""Qwant search request"""
keyword = category_to_keyword[categories[0]]
count = 10 # web: count must be equal to 10
if keyword == 'images':
count = 50
offset = (params['pageno'] - 1) * count
# count + offset must be lower than 250
offset = min(offset, 199)
else:
offset = (params['pageno'] - 1) * count
# count + offset must be lower than 50
offset = min(offset, 40)
params['url'] = url.format(
keyword=keyword,
query=urlencode({'q': query}),
offset=offset,
count=count,
)
# add language tag
if params['language'] == 'all':
params['url'] += '&locale=en_US'
else:
language = match_language(
params['language'],
supported_languages,
language_aliases,
)
params['url'] += '&locale=' + language.replace('-', '_')
params['raise_for_httperror'] = False
return params
def response(resp):
"""Get response from Qwant's search request"""
# pylint: disable=too-many-locals, too-many-branches, too-many-statements
keyword = category_to_keyword[categories[0]]
results = []
# load JSON result
search_results = loads(resp.text)
data = search_results.get('data', {})
# check for an API error
if search_results.get('status') != 'success':
msg = ",".join(
data.get(
'message',
[
'unknown',
],
)
)
raise SearxEngineAPIException('API error::' + msg)
# raise for other errors
raise_for_httperror(resp)
if keyword == 'web':
# The WEB query contains a list named 'mainline'. This list can contain
# different result types (e.g. mainline[0]['type'] returns type of the
# result items in mainline[0]['items']
mainline = data.get('result', {}).get('items', {}).get('mainline', {})
else:
# Queries on News, Images and Videos do not have a list named 'mainline'
# in the response. The result items are directly in the list
# result['items'].
mainline = data.get('result', {}).get('items', [])
mainline = [
{'type': keyword, 'items': mainline},
]
# return empty array if there are no results
if not mainline:
return []
for row in mainline:
mainline_type = row.get('type', 'web')
if mainline_type != keyword:
continue
if mainline_type == 'ads':
# ignore adds
continue
mainline_items = row.get('items', [])
for item in mainline_items:
title = item.get('title', None)
res_url = item.get('url', None)
if mainline_type == 'web':
content = item['desc']
results.append(
{
'title': title,
'url': res_url,
'content': content,
}
)
elif mainline_type == 'news':
pub_date = item['date']
if pub_date is not None:
pub_date = datetime.fromtimestamp(pub_date)
news_media = item.get('media', [])
img_src = None
if news_media:
img_src = news_media[0].get('pict', {}).get('url', None)
results.append(
{
'title': title,
'url': res_url,
'publishedDate': pub_date,
'img_src': img_src,
}
)
elif mainline_type == 'images':
thumbnail = item['thumbnail']
img_src = item['media']
results.append(
{
'title': title,
'url': res_url,
'template': 'images.html',
'thumbnail_src': thumbnail,
'img_src': img_src,
}
)
elif mainline_type == 'videos':
# some videos do not have a description: while qwant-video
# returns an empty string, such video from a qwant-web query
# miss the 'desc' key.
d, s, c = item.get('desc'), item.get('source'), item.get('channel')
content_parts = []
if d:
content_parts.append(d)
if s:
content_parts.append("%s: %s " % (gettext("Source"), s))
if c:
content_parts.append("%s: %s " % (gettext("Channel"), c))
content = ' // '.join(content_parts)
length = item['duration']
if length is not None:
length = timedelta(milliseconds=length)
pub_date = item['date']
if pub_date is not None:
pub_date = datetime.fromtimestamp(pub_date)
thumbnail = item['thumbnail']
# from some locations (DE and others?) the s2 link do
# response a 'Please wait ..' but does not deliver the thumbnail
thumbnail = thumbnail.replace('https://s2.qwant.com', 'https://s1.qwant.com', 1)
results.append(
{
'title': title,
'url': res_url,
'content': content,
'publishedDate': pub_date,
'thumbnail': thumbnail,
'template': 'videos.html',
'length': length,
}
)
return results
# get supported languages from their site
def _fetch_supported_languages(resp):
# list of regions is embedded in page as a js object
response_text = resp.text
response_text = response_text[response_text.find('INITIAL_PROPS'):]
response_text = response_text[response_text.find('{'): response_text.find('</script>')]
regions_json = loads(response_text)
supported_languages = []
for country, langs in regions_json['locales'].items():
for lang in langs['langs']:
lang_code = "{lang}-{country}".format(lang=lang, country=country)
supported_languages.append(lang_code)
return supported_languages
|
