forked from Ponysearch/Ponysearch
116 lines
3.3 KiB
Python
116 lines
3.3 KiB
Python
# Wolfram|Alpha (Science)
|
|
#
|
|
# @website https://www.wolframalpha.com/
|
|
# @provide-api yes (https://api.wolframalpha.com/v2/)
|
|
#
|
|
# @using-api no
|
|
# @results JSON
|
|
# @stable no
|
|
# @parse url, infobox
|
|
|
|
from cgi import escape
|
|
from json import loads
|
|
from time import time
|
|
from urllib import urlencode
|
|
from lxml.etree import XML
|
|
|
|
from searx.poolrequests import get as http_get
|
|
|
|
# search-url
|
|
url = 'https://www.wolframalpha.com/'
|
|
|
|
search_url = url + 'input/json.jsp'\
|
|
'?async=false'\
|
|
'&banners=raw'\
|
|
'&debuggingdata=false'\
|
|
'&format=image,plaintext,imagemap,minput,moutput'\
|
|
'&formattimeout=2'\
|
|
'&{query}'\
|
|
'&output=JSON'\
|
|
'&parsetimeout=2'\
|
|
'&proxycode={token}'\
|
|
'&scantimeout=0.5'\
|
|
'&sponsorcategories=true'\
|
|
'&statemethod=deploybutton'
|
|
|
|
referer_url = url + 'input/?{query}'
|
|
|
|
token = {'value': '',
|
|
'last_updated': None}
|
|
|
|
# pods to display as image in infobox
|
|
# this pods do return a plaintext, but they look better and are more useful as images
|
|
image_pods = {'VisualRepresentation',
|
|
'Illustration',
|
|
'Symbol'}
|
|
|
|
|
|
# seems, wolframalpha resets its token in every hour
|
|
def obtain_token():
|
|
update_time = time() - (time() % 3600)
|
|
try:
|
|
token_response = http_get('https://www.wolframalpha.com/input/api/v1/code?ts=9999999999999999999', timeout=2.0)
|
|
token['value'] = loads(token_response.text)['code']
|
|
token['last_updated'] = update_time
|
|
except:
|
|
pass
|
|
return token
|
|
|
|
|
|
obtain_token()
|
|
|
|
|
|
# do search-request
|
|
def request(query, params):
|
|
# obtain token if last update was more than an hour
|
|
if time() - token['last_updated'] > 3600:
|
|
obtain_token()
|
|
params['url'] = search_url.format(query=urlencode({'input': query}), token=token['value'])
|
|
params['headers']['Referer'] = referer_url.format(query=urlencode({'i': query}))
|
|
|
|
return params
|
|
|
|
|
|
# get response from search-request
|
|
def response(resp):
|
|
results = []
|
|
|
|
resp_json = loads(resp.text)
|
|
|
|
if not resp_json['queryresult']['success']:
|
|
return []
|
|
|
|
# TODO handle resp_json['queryresult']['assumptions']
|
|
result_chunks = []
|
|
infobox_title = None
|
|
for pod in resp_json['queryresult']['pods']:
|
|
pod_id = pod.get('id', '')
|
|
pod_title = pod.get('title', '')
|
|
|
|
if 'subpods' not in pod:
|
|
continue
|
|
|
|
if pod_id == 'Input' or not infobox_title:
|
|
infobox_title = pod['subpods'][0]['plaintext']
|
|
|
|
for subpod in pod['subpods']:
|
|
if subpod['plaintext'] != '' and pod_id not in image_pods:
|
|
# append unless it's not an actual answer
|
|
if subpod['plaintext'] != '(requires interactivity)':
|
|
result_chunks.append({'label': pod_title, 'value': subpod['plaintext']})
|
|
|
|
elif 'img' in subpod:
|
|
result_chunks.append({'label': pod_title, 'image': subpod['img']})
|
|
|
|
if not result_chunks:
|
|
return []
|
|
|
|
results.append({'infobox': infobox_title,
|
|
'attributes': result_chunks,
|
|
'urls': [{'title': 'Wolfram|Alpha', 'url': resp.request.headers['Referer'].decode('utf8')}]})
|
|
|
|
results.append({'url': resp.request.headers['Referer'].decode('utf8'),
|
|
'title': 'Wolfram|Alpha',
|
|
'content': infobox_title})
|
|
|
|
return results
|