| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960 | # SPDX-License-Identifier: AGPL-3.0-or-later# lint: pylint"""Semantic Scholar (Science)"""# pylint: disable=use-dict-literalfrom urllib.parse import urlencodefrom searx.utils import html_to_textabout = {    "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 = Truesearch_url = 'https://api.crossref.org/works'def request(query, params):    params['url'] = search_url + '?' + urlencode(dict(query=query, offset=20 * (params['pageno'] - 1)))    return paramsdef 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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