kopia lustrzana https://gitlab.com/jaywink/federation
36 wiersze
1.1 KiB
Python
36 wiersze
1.1 KiB
Python
import json
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from datetime import timedelta
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from pyld import jsonld
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from federation.utils.django import get_redis
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cache = get_redis() or {}
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EXPIRATION = int(timedelta(weeks=4).total_seconds())
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# This is required to workaround a bug in pyld that has the Accept header
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# accept other content types. From what I understand, precedence handling
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# is broken
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# from https://github.com/digitalbazaar/pyld/issues/133
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# cacheing loosely inspired by https://github.com/digitalbazaar/pyld/issues/70
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def get_loader(*args, **kwargs):
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requests_loader = jsonld.requests_document_loader(*args, **kwargs)
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def loader(url, options={}):
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key = f'ld_cache:{url}'
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try:
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return json.loads(cache[key])
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except KeyError:
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options['headers']['Accept'] = 'application/ld+json'
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doc = requests_loader(url, options)
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if isinstance(cache, dict):
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cache[url] = json.dumps(doc)
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else:
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cache.set(f'ld_cache:{url}', json.dumps(doc), ex=EXPIRATION)
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return doc
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return loader
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jsonld.set_document_loader(get_loader())
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