mirror of
https://github.com/searxng/searxng.git
synced 2024-11-05 12:50:11 +01:00
d84226bf63
Fix pylint issues from commit (3d96a983)
[format.python] initial formatting of the python code
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
246 lines
9.4 KiB
Python
246 lines
9.4 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
|
|
# lint: pylint
|
|
"""DuckDuckGo (Instant Answer API)
|
|
|
|
"""
|
|
|
|
import json
|
|
from urllib.parse import urlencode, urlparse, urljoin
|
|
from lxml import html
|
|
|
|
from searx.data import WIKIDATA_UNITS
|
|
from searx.engines.duckduckgo import language_aliases
|
|
from searx.engines.duckduckgo import ( # pylint: disable=unused-import
|
|
_fetch_supported_languages,
|
|
supported_languages_url,
|
|
)
|
|
from searx.utils import extract_text, html_to_text, match_language, get_string_replaces_function
|
|
from searx.external_urls import get_external_url, get_earth_coordinates_url, area_to_osm_zoom
|
|
|
|
# about
|
|
about = {
|
|
"website": 'https://duckduckgo.com/',
|
|
"wikidata_id": 'Q12805',
|
|
"official_api_documentation": 'https://duckduckgo.com/api',
|
|
"use_official_api": True,
|
|
"require_api_key": False,
|
|
"results": 'JSON',
|
|
}
|
|
|
|
URL = 'https://api.duckduckgo.com/' + '?{query}&format=json&pretty=0&no_redirect=1&d=1'
|
|
|
|
WIKIDATA_PREFIX = ['http://www.wikidata.org/entity/', 'https://www.wikidata.org/entity/']
|
|
|
|
replace_http_by_https = get_string_replaces_function({'http:': 'https:'})
|
|
|
|
|
|
def is_broken_text(text):
|
|
"""duckduckgo may return something like "<a href="xxxx">http://somewhere Related website<a/>"
|
|
|
|
The href URL is broken, the "Related website" may contains some HTML.
|
|
|
|
The best solution seems to ignore these results.
|
|
"""
|
|
return text.startswith('http') and ' ' in text
|
|
|
|
|
|
def result_to_text(text, htmlResult):
|
|
# TODO : remove result ending with "Meaning" or "Category" # pylint: disable=fixme
|
|
result = None
|
|
dom = html.fromstring(htmlResult)
|
|
a = dom.xpath('//a')
|
|
if len(a) >= 1:
|
|
result = extract_text(a[0])
|
|
else:
|
|
result = text
|
|
if not is_broken_text(result):
|
|
return result
|
|
return None
|
|
|
|
|
|
def request(query, params):
|
|
params['url'] = URL.format(query=urlencode({'q': query}))
|
|
language = match_language(params['language'], supported_languages, language_aliases)
|
|
language = language.split('-')[0]
|
|
params['headers']['Accept-Language'] = language
|
|
return params
|
|
|
|
|
|
def response(resp):
|
|
# pylint: disable=too-many-locals, too-many-branches, too-many-statements
|
|
results = []
|
|
|
|
search_res = json.loads(resp.text)
|
|
|
|
# search_res.get('Entity') possible values (not exhaustive) :
|
|
# * continent / country / department / location / waterfall
|
|
# * actor / musician / artist
|
|
# * book / performing art / film / television / media franchise / concert tour / playwright
|
|
# * prepared food
|
|
# * website / software / os / programming language / file format / software engineer
|
|
# * compagny
|
|
|
|
content = ''
|
|
heading = search_res.get('Heading', '')
|
|
attributes = []
|
|
urls = []
|
|
infobox_id = None
|
|
relatedTopics = []
|
|
|
|
# add answer if there is one
|
|
answer = search_res.get('Answer', '')
|
|
if answer:
|
|
logger.debug('AnswerType="%s" Answer="%s"', search_res.get('AnswerType'), answer)
|
|
if search_res.get('AnswerType') not in ['calc', 'ip']:
|
|
results.append({'answer': html_to_text(answer)})
|
|
|
|
# add infobox
|
|
if 'Definition' in search_res:
|
|
content = content + search_res.get('Definition', '')
|
|
|
|
if 'Abstract' in search_res:
|
|
content = content + search_res.get('Abstract', '')
|
|
|
|
# image
|
|
image = search_res.get('Image')
|
|
image = None if image == '' else image
|
|
if image is not None and urlparse(image).netloc == '':
|
|
image = urljoin('https://duckduckgo.com', image)
|
|
|
|
# urls
|
|
# Official website, Wikipedia page
|
|
for ddg_result in search_res.get('Results', []):
|
|
firstURL = ddg_result.get('FirstURL')
|
|
text = ddg_result.get('Text')
|
|
if firstURL is not None and text is not None:
|
|
urls.append({'title': text, 'url': firstURL})
|
|
results.append({'title': heading, 'url': firstURL})
|
|
|
|
# related topics
|
|
for ddg_result in search_res.get('RelatedTopics', []):
|
|
if 'FirstURL' in ddg_result:
|
|
firstURL = ddg_result.get('FirstURL')
|
|
text = ddg_result.get('Text')
|
|
if not is_broken_text(text):
|
|
suggestion = result_to_text(text, ddg_result.get('Result'))
|
|
if suggestion != heading and suggestion is not None:
|
|
results.append({'suggestion': suggestion})
|
|
elif 'Topics' in ddg_result:
|
|
suggestions = []
|
|
relatedTopics.append({'name': ddg_result.get('Name', ''), 'suggestions': suggestions})
|
|
for topic_result in ddg_result.get('Topics', []):
|
|
suggestion = result_to_text(topic_result.get('Text'), topic_result.get('Result'))
|
|
if suggestion != heading and suggestion is not None:
|
|
suggestions.append(suggestion)
|
|
|
|
# abstract
|
|
abstractURL = search_res.get('AbstractURL', '')
|
|
if abstractURL != '':
|
|
# add as result ? problem always in english
|
|
infobox_id = abstractURL
|
|
urls.append({'title': search_res.get('AbstractSource'), 'url': abstractURL, 'official': True})
|
|
results.append({'url': abstractURL, 'title': heading})
|
|
|
|
# definition
|
|
definitionURL = search_res.get('DefinitionURL', '')
|
|
if definitionURL != '':
|
|
# add as result ? as answer ? problem always in english
|
|
infobox_id = definitionURL
|
|
urls.append({'title': search_res.get('DefinitionSource'), 'url': definitionURL})
|
|
|
|
# to merge with wikidata's infobox
|
|
if infobox_id:
|
|
infobox_id = replace_http_by_https(infobox_id)
|
|
|
|
# attributes
|
|
# some will be converted to urls
|
|
if 'Infobox' in search_res:
|
|
infobox = search_res.get('Infobox')
|
|
if 'content' in infobox:
|
|
osm_zoom = 17
|
|
coordinates = None
|
|
for info in infobox.get('content'):
|
|
data_type = info.get('data_type')
|
|
data_label = info.get('label')
|
|
data_value = info.get('value')
|
|
|
|
# Workaround: ddg may return a double quote
|
|
if data_value == '""':
|
|
continue
|
|
|
|
# Is it an external URL ?
|
|
# * imdb_id / facebook_profile / youtube_channel / youtube_video / twitter_profile
|
|
# * instagram_profile / rotten_tomatoes / spotify_artist_id / itunes_artist_id / soundcloud_id
|
|
# * netflix_id
|
|
external_url = get_external_url(data_type, data_value)
|
|
if external_url is not None:
|
|
urls.append({'title': data_label, 'url': external_url})
|
|
elif data_type in ['instance', 'wiki_maps_trigger', 'google_play_artist_id']:
|
|
# ignore instance: Wikidata value from "Instance Of" (Qxxxx)
|
|
# ignore wiki_maps_trigger: reference to a javascript
|
|
# ignore google_play_artist_id: service shutdown
|
|
pass
|
|
elif data_type == 'string' and data_label == 'Website':
|
|
# There is already an URL for the website
|
|
pass
|
|
elif data_type == 'area':
|
|
attributes.append({'label': data_label, 'value': area_to_str(data_value), 'entity': 'P2046'})
|
|
osm_zoom = area_to_osm_zoom(data_value.get('amount'))
|
|
elif data_type == 'coordinates':
|
|
if data_value.get('globe') == 'http://www.wikidata.org/entity/Q2':
|
|
# coordinate on Earth
|
|
# get the zoom information from the area
|
|
coordinates = info
|
|
else:
|
|
# coordinate NOT on Earth
|
|
attributes.append({'label': data_label, 'value': data_value, 'entity': 'P625'})
|
|
elif data_type == 'string':
|
|
attributes.append({'label': data_label, 'value': data_value})
|
|
|
|
if coordinates:
|
|
data_label = coordinates.get('label')
|
|
data_value = coordinates.get('value')
|
|
latitude = data_value.get('latitude')
|
|
longitude = data_value.get('longitude')
|
|
url = get_earth_coordinates_url(latitude, longitude, osm_zoom)
|
|
urls.append({'title': 'OpenStreetMap', 'url': url, 'entity': 'P625'})
|
|
|
|
if len(heading) > 0:
|
|
# TODO get infobox.meta.value where .label='article_title' # pylint: disable=fixme
|
|
if image is None and len(attributes) == 0 and len(urls) == 1 and len(relatedTopics) == 0 and len(content) == 0:
|
|
results.append({'url': urls[0]['url'], 'title': heading, 'content': content})
|
|
else:
|
|
results.append(
|
|
{
|
|
'infobox': heading,
|
|
'id': infobox_id,
|
|
'content': content,
|
|
'img_src': image,
|
|
'attributes': attributes,
|
|
'urls': urls,
|
|
'relatedTopics': relatedTopics,
|
|
}
|
|
)
|
|
|
|
return results
|
|
|
|
|
|
def unit_to_str(unit):
|
|
for prefix in WIKIDATA_PREFIX:
|
|
if unit.startswith(prefix):
|
|
wikidata_entity = unit[len(prefix) :]
|
|
return WIKIDATA_UNITS.get(wikidata_entity, unit)
|
|
return unit
|
|
|
|
|
|
def area_to_str(area):
|
|
"""parse {'unit': 'http://www.wikidata.org/entity/Q712226', 'amount': '+20.99'}"""
|
|
unit = unit_to_str(area.get('unit'))
|
|
if unit is not None:
|
|
try:
|
|
amount = float(area.get('amount'))
|
|
return '{} {}'.format(amount, unit)
|
|
except ValueError:
|
|
pass
|
|
return '{} {}'.format(area.get('amount', ''), area.get('unit', ''))
|