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import json
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from lxml import html
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from re import compile
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from searx.engines.xpath import extract_text
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from searx.engines.duckduckgo import _fetch_supported_languages, supported_languages_url
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from searx.url_utils import urlencode
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from searx.utils import html_to_text
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url = 'https://api.duckduckgo.com/'\
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+ '?{query}&format=json&pretty=0&no_redirect=1&d=1'
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http_regex = compile(r'^http:')
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def result_to_text(url, text, htmlResult):
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# TODO : remove result ending with "Meaning" or "Category"
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dom = html.fromstring(htmlResult)
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a = dom.xpath('//a')
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if len(a) >= 1:
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return extract_text(a[0])
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else:
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return text
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def request(query, params):
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params['url'] = url.format(query=urlencode({'q': query}))
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params['headers']['Accept-Language'] = params['language'].split('-')[0]
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return params
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def response(resp):
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results = []
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search_res = json.loads(resp.text)
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content = ''
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heading = search_res.get('Heading', '')
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attributes = []
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urls = []
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infobox_id = None
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relatedTopics = []
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# add answer if there is one
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answer = search_res.get('Answer', '')
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if answer != '':
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results.append({'answer': html_to_text(answer)})
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# add infobox
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if 'Definition' in search_res:
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content = content + search_res.get('Definition', '')
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if 'Abstract' in search_res:
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content = content + search_res.get('Abstract', '')
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# image
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image = search_res.get('Image', '')
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image = None if image == '' else image
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# attributes
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if 'Infobox' in search_res:
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infobox = search_res.get('Infobox', None)
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if 'content' in infobox:
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for info in infobox.get('content'):
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attributes.append({'label': info.get('label'),
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'value': info.get('value')})
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# urls
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for ddg_result in search_res.get('Results', []):
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if 'FirstURL' in ddg_result:
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firstURL = ddg_result.get('FirstURL', '')
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text = ddg_result.get('Text', '')
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urls.append({'title': text, 'url': firstURL})
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results.append({'title': heading, 'url': firstURL})
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# related topics
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for ddg_result in search_res.get('RelatedTopics', []):
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if 'FirstURL' in ddg_result:
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suggestion = result_to_text(ddg_result.get('FirstURL', None),
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ddg_result.get('Text', None),
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ddg_result.get('Result', None))
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if suggestion != heading:
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results.append({'suggestion': suggestion})
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elif 'Topics' in ddg_result:
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suggestions = []
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relatedTopics.append({'name': ddg_result.get('Name', ''),
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'suggestions': suggestions})
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for topic_result in ddg_result.get('Topics', []):
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suggestion = result_to_text(topic_result.get('FirstURL', None),
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topic_result.get('Text', None),
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topic_result.get('Result', None))
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if suggestion != heading:
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suggestions.append(suggestion)
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# abstract
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abstractURL = search_res.get('AbstractURL', '')
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if abstractURL != '':
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# add as result ? problem always in english
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infobox_id = abstractURL
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urls.append({'title': search_res.get('AbstractSource'),
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'url': abstractURL})
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# definition
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definitionURL = search_res.get('DefinitionURL', '')
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if definitionURL != '':
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# add as result ? as answer ? problem always in english
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infobox_id = definitionURL
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urls.append({'title': search_res.get('DefinitionSource'),
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'url': definitionURL})
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# to merge with wikidata's infobox
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if infobox_id:
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infobox_id = http_regex.sub('https:', infobox_id)
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# entity
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entity = search_res.get('Entity', None)
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# TODO continent / country / department / location / waterfall /
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# mountain range :
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# link to map search, get weather, near by locations
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# TODO musician : link to music search
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# TODO concert tour : ??
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# TODO film / actor / television / media franchise :
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# links to IMDB / rottentomatoes (or scrap result)
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# TODO music : link tu musicbrainz / last.fm
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# TODO book : ??
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# TODO artist / playwright : ??
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# TODO compagny : ??
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# TODO software / os : ??
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# TODO software engineer : ??
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# TODO prepared food : ??
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# TODO website : ??
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# TODO performing art : ??
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# TODO prepared food : ??
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# TODO programming language : ??
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# TODO file format : ??
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if len(heading) > 0:
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# TODO get infobox.meta.value where .label='article_title'
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if image is None and len(attributes) == 0 and len(urls) == 1 and\
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len(relatedTopics) == 0 and len(content) == 0:
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results.append({
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'url': urls[0]['url'],
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'title': heading,
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'content': content
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})
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else:
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results.append({
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'infobox': heading,
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'id': infobox_id,
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'entity': entity,
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'content': content,
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'img_src': image,
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'attributes': attributes,
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'urls': urls,
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'relatedTopics': relatedTopics
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})
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return results
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