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# SPDX-License-Identifier: AGPL-3.0-or-later
"""
Library of Congress : images from Prints and Photographs Online Catalog
"""
from json import loads
from urllib.parse import urlencode
about = {
"website": 'https://www.loc.gov/pictures/',
"wikidata_id": 'Q131454',
"official_api_documentation": 'https://www.loc.gov/pictures/api',
"use_official_api": True,
"require_api_key": False,
"results": 'JSON',
}
categories = ['images']
paging = True
base_url = 'https://loc.gov/pictures/search/?'
search_string = "&sp={page}&{query}&fo=json"
IMG_SRC_FIXES = {
'https://tile.loc.gov/storage-services/': 'https://tile.loc.gov/storage-services/',
'https://loc.gov/pictures/static/images/': 'https://tile.loc.gov/storage-services/',
'https://www.loc.gov/pictures/cdn/': 'https://tile.loc.gov/storage-services/',
}
def request(query, params):
search_path = search_string.format(
query=urlencode({'q': query}),
page=params['pageno'])
params['url'] = base_url + search_path
return params
def response(resp):
results = []
json_data = loads(resp.text)
for result in json_data['results']:
img_src = result['image']['full']
for url_prefix, url_replace in IMG_SRC_FIXES.items():
if img_src.startswith(url_prefix):
img_src = img_src.replace(url_prefix, url_replace)
break
else:
img_src = result['image']['thumb']
results.append({
'url': result['links']['item'],
'title': result['title'],
'img_src': img_src,
'thumbnail_src': result['image']['thumb'],
'author': result['creator'],
'template': 'images.html'
})
return results
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