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106 lines
3.1 KiB
Python
106 lines
3.1 KiB
Python
from Crypto.PublicKey import RSA
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from django.http import HttpResponseForbidden
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from django.shortcuts import get_object_or_404
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from rest_framework import generics
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from rest_framework.exceptions import ValidationError
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from rest_framework.permissions import IsAuthenticated
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from rest_framework.response import Response
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from rest_framework.views import APIView
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from secrets.filters import SecretFilter
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from secrets.models import Secret, SecretRole, UserKey
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from .serializers import SecretRoleSerializer, SecretSerializer
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class SecretRoleListView(generics.ListAPIView):
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"""
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List all secret roles
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"""
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queryset = SecretRole.objects.all()
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serializer_class = SecretRoleSerializer
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class SecretRoleDetailView(generics.RetrieveAPIView):
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"""
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Retrieve a single secret role
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"""
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queryset = SecretRole.objects.all()
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serializer_class = SecretRoleSerializer
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class SecretListView(generics.ListAPIView):
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"""
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List secrets (filterable)
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"""
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queryset = Secret.objects.select_related('role')
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serializer_class = SecretSerializer
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filter_class = SecretFilter
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permission_classes = [IsAuthenticated]
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class SecretDetailView(generics.RetrieveAPIView):
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"""
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Retrieve a single Secret
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"""
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queryset = Secret.objects.select_related('role')
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serializer_class = SecretSerializer
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permission_classes = [IsAuthenticated]
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class SecretDecryptView(APIView):
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"""
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Retrieve the plaintext from a stored Secret. The request must include a valid private key.
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"""
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permission_classes = [IsAuthenticated]
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def post(self, request, pk):
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secret = get_object_or_404(Secret, pk=pk)
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private_key = request.POST.get('private_key')
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if not private_key:
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raise ValidationError("Private key is missing from request.")
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# Retrieve the Secret's plaintext with the user's private key
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try:
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uk = UserKey.objects.get(user=request.user)
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except UserKey.DoesNotExist:
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return HttpResponseForbidden(reason="No UserKey found.")
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if not uk.is_active():
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return HttpResponseForbidden(reason="UserKey is inactive.")
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# Attempt to decrypt the Secret.
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master_key = uk.get_master_key(private_key)
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if master_key is None:
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raise ValidationError("Invalid secret key.")
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secret.decrypt(master_key)
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return Response({
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'plaintext': secret.plaintext,
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})
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class RSAKeyGeneratorView(APIView):
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"""
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Generate a new RSA key pair for a user. Authenticated because it's a ripe avenue for DoS.
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"""
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permission_classes = [IsAuthenticated]
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def get(self, request):
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# Determine what size key to generate
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key_size = request.GET.get('key_size', 2048)
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if key_size not in range(2048, 4097, 256):
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key_size = 2048
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# Export RSA private and public keys in PEM format
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key = RSA.generate(key_size)
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private_key = key.exportKey('PEM')
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public_key = key.publickey().exportKey('PEM')
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return Response({
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'private_key': private_key,
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'public_key': public_key,
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})
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