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searxng/searx/engines/springer.py
Markus Heiser 0052887929 [fix] springer: unsupported operand type(s) for +: 'NoneType' and 'str'
- fix issue reported #1809
- filter out `None` value from issn and isbn list
- add comments (from publicationName)
- add publisher

Closes: https://github.com/searxng/searxng/issues/1809
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2022-09-25 15:25:55 +02:00

73 lines
2.4 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint
"""Springer Nature (science)
"""
from datetime import datetime
from json import loads
from urllib.parse import urlencode
from searx.exceptions import SearxEngineAPIException
about = {
"website": 'https://www.springernature.com/',
"wikidata_id": 'Q21096327',
"official_api_documentation": 'https://dev.springernature.com/',
"use_official_api": True,
"require_api_key": True,
"results": 'JSON',
}
categories = ['science', 'scientific publications']
paging = True
nb_per_page = 10
api_key = 'unset'
base_url = 'https://api.springernature.com/metadata/json?'
def request(query, params):
if api_key == 'unset':
raise SearxEngineAPIException('missing Springer-Nature API key')
args = urlencode({'q': query, 's': nb_per_page * (params['pageno'] - 1), 'p': nb_per_page, 'api_key': api_key})
params['url'] = base_url + args
logger.debug("query_url --> %s", params['url'])
return params
def response(resp):
results = []
json_data = loads(resp.text)
for record in json_data['records']:
published = datetime.strptime(record['publicationDate'], '%Y-%m-%d')
authors = [" ".join(author['creator'].split(', ')[::-1]) for author in record['creators']]
tags = record.get('genre')
if isinstance(tags, str):
tags = [tags]
results.append(
{
'template': 'paper.html',
'url': record['url'][0]['value'].replace('http://', 'https://', 1),
'title': record['title'],
'content': record['abstract'],
'comments': record['publicationName'],
'tags': tags,
'publishedDate': published,
'type': record.get('contentType'),
'authors': authors,
# 'editor': '',
'publisher': record.get('publisher'),
'journal': record.get('publicationName'),
'volume': record.get('volume') or None,
'pages': '-'.join([x for x in [record.get('startingPage'), record.get('endingPage')] if x]),
'number': record.get('number') or None,
'doi': record.get('doi'),
'issn': [x for x in [record.get('issn')] if x],
'isbn': [x for x in [record.get('isbn')] if x],
# 'pdf_url' : ''
}
)
return results