33 lines
978 B
Python
33 lines
978 B
Python
from __future__ import unicode_literals
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import logging
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from django.db import models
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from django_gpg.exceptions import DecryptionError
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from django_gpg.models import Key
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from documents.models import DocumentVersion
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logger = logging.getLogger(__name__)
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class EmbeddedSignatureManager(models.Manager):
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def open_signed(self, file_object, document_version):
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for signature in self.filter(document_version=document_version):
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try:
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return self.open_signed(
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file_object=Key.objects.decrypt_file(
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file_object=file_object
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), document_version=document_version
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)
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except DecryptionError:
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file_object.seek(0)
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return file_object
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else:
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return file_object
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def unsigned_document_versions(self):
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return DocumentVersion.objects.exclude(
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pk__in=self.values('document_version')
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)
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