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- # SPDX-License-Identifier: AGPL-3.0-or-later
- # lint: pylint
- """Semantic Scholar (Science)
- """
- from urllib.parse import urlencode
- from searx.utils import html_to_text
- about = {
- "website": 'https://www.crossref.org/',
- "wikidata_id": 'Q5188229',
- "official_api_documentation": 'https://github.com/CrossRef/rest-api-doc',
- "use_official_api": False,
- "require_api_key": False,
- "results": 'JSON',
- }
- categories = ['science', 'scientific publications']
- paging = True
- search_url = 'https://api.crossref.org/works'
- def request(query, params):
- params['url'] = search_url + '?' + urlencode(dict(query=query, offset=20 * (params['pageno'] - 1)))
- return params
- def response(resp):
- res = resp.json()
- results = []
- for record in res['message']['items']:
- record_type = record['type']
- if record_type == 'book-chapter':
- title = record['container-title'][0]
- if record['title'][0].lower().strip() != title.lower().strip():
- title = html_to_text(title) + ' (' + html_to_text(record['title'][0]) + ')'
- journal = None
- else:
- title = html_to_text(record['title'][0])
- journal = record.get('container-title', [None])[0]
- url = record.get('resource', {}).get('primary', {}).get('URL') or record['URL']
- authors = [author.get('given', '') + ' ' + author.get('family', '') for author in record.get('author', [])]
- isbn = record.get('isbn') or [i['value'] for i in record.get('isbn-type', [])]
- results.append(
- {
- 'template': 'paper.html',
- 'url': url,
- 'title': title,
- 'journal': journal,
- 'volume': record.get('volume'),
- 'type': record['type'],
- 'content': html_to_text(record.get('abstract', '')),
- 'publisher': record.get('publisher'),
- 'authors': authors,
- 'doi': record['DOI'],
- 'isbn': isbn,
- }
- )
- return results
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