devicehub-django/dpp/views.py

50 lines
1.2 KiB
Python

import json
import logging
import hashlib
from django.views.generic.edit import View
from django.http import JsonResponse
from dpp.api_dlt import ALGORITHM
from evidence.models import Evidence
from evidence.parse import Build
from dpp.models import Proof
logger = logging.getLogger('django')
class ProofView(View):
def get(self, request, *args, **kwargs):
timestamp = kwargs.get("proof_id")
proof = Proof.objects.filter(timestamp=timestamp).first()
if not proof:
return JsonResponse({}, status=404)
logger.error(proof.type)
logger.error(proof.signature)
ev = Evidence(proof.uuid)
if not ev.doc:
return JsonResponse({}, status=404)
dev = Build(ev.doc, None, check=True)
doc = dev.get_phid()
logger.error(doc)
hs = hashlib.sha3_256(json.dumps(doc).encode()).hexdigest()
logger.error(hs)
data = {
"algorithm": ALGORITHM,
"document": json.dumps(doc)
}
d = {
'@context': ['https://ereuse.org/proof0.json'],
'data': data,
}
response = JsonResponse(d, status=200)
response["Access-Control-Allow-Origin"] = "*"
return response