89 lines
2.6 KiB
Python
89 lines
2.6 KiB
Python
# Copyright © 2017 Tom Hacohen
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, version 3.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import base64
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from django.contrib.auth import get_user_model
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from rest_framework import serializers
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from . import models
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User = get_user_model()
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class BinaryBase64Field(serializers.Field):
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def to_representation(self, value):
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return base64.b64encode(value).decode('ascii')
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def to_internal_value(self, data):
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return base64.b64decode(data)
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class CollectionSerializer(serializers.ModelSerializer):
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owner = serializers.SlugRelatedField(
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slug_field=User.USERNAME_FIELD,
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read_only=True
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)
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encryptionKey = serializers.SerializerMethodField('get_key_from_context')
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permissions = serializers.SerializerMethodField('get_permission_from_context')
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ctag = serializers.SerializerMethodField('get_ctag')
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class Meta:
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model = models.Collection
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fields = ('uid', 'version', 'owner', 'encryptionKey', 'permissions', 'ctag')
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def get_key_from_context(self, obj):
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request = self.context.get('request', None)
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if request is not None:
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return 'FIXME'
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return None
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def get_permission_from_context(self, obj):
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request = self.context.get('request', None)
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if request is not None:
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return 'FIXME'
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return 'readOnly'
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def get_ctag(self, obj):
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return 'FIXME'
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class CollectionItemChunkSerializer(serializers.ModelSerializer):
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class Meta:
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model = models.CollectionItemChunk
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fields = ('uid', )
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class CollectionItemSnapshotSerializer(serializers.ModelSerializer):
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chunks = serializers.SlugRelatedField(
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slug_field='uid',
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queryset=models.CollectionItemChunk,
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many=True
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)
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class Meta:
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model = models.CollectionItemSnapshot
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fields = ('chunks', 'chunkHmac')
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class CollectionItemSerializer(serializers.ModelSerializer):
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encryptionKey = BinaryBase64Field()
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content = CollectionItemSnapshotSerializer(
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read_only=True,
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many=False
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)
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class Meta:
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model = models.CollectionItem
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fields = ('uid', 'version', 'encryptionKey', 'content')
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