353 lines
12 KiB
Python
353 lines
12 KiB
Python
from __future__ import unicode_literals
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import hashlib
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import logging
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import time
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from django.core.files import File
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from django.test import override_settings
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from common.tests import BaseTestCase
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from django_gpg.models import Key
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from django_gpg.tests.literals import TEST_KEY_DATA, TEST_KEY_PASSPHRASE
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from documents.models import DocumentType, DocumentVersion
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from documents.tests import TEST_DOCUMENT_PATH, TEST_DOCUMENT_TYPE_LABEL
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from ..models import DetachedSignature, EmbeddedSignature
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from ..tasks import task_verify_missing_embedded_signature
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from .literals import (
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TEST_SIGNED_DOCUMENT_PATH, TEST_SIGNATURE_FILE_PATH, TEST_KEY_FILE,
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TEST_KEY_ID, TEST_SIGNATURE_ID
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)
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@override_settings(OCR_AUTO_OCR=False)
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class DocumentSignaturesTestCase(BaseTestCase):
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def setUp(self):
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super(DocumentSignaturesTestCase, self).setUp()
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self.document_type = DocumentType.objects.create(
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label=TEST_DOCUMENT_TYPE_LABEL
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)
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def tearDown(self):
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self.document_type.delete()
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super(DocumentSignaturesTestCase, self).tearDown()
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def test_embedded_signature_no_key(self):
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with open(TEST_SIGNED_DOCUMENT_PATH, mode='rb') as file_object:
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signed_document = self.document_type.new_document(
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file_object=file_object
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)
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self.assertEqual(EmbeddedSignature.objects.count(), 1)
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signature = EmbeddedSignature.objects.first()
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self.assertEqual(
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signature.document_version, signed_document.latest_version
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)
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self.assertEqual(signature.key_id, TEST_KEY_ID)
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self.assertEqual(signature.signature_id, None)
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def test_embedded_signature_post_key_verify(self):
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with open(TEST_SIGNED_DOCUMENT_PATH, mode='rb') as file_object:
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signed_document = self.document_type.new_document(
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file_object=file_object
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)
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self.assertEqual(EmbeddedSignature.objects.count(), 1)
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signature = EmbeddedSignature.objects.first()
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self.assertEqual(
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signature.document_version, signed_document.latest_version
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)
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self.assertEqual(signature.key_id, TEST_KEY_ID)
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self.assertEqual(signature.signature_id, None)
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with open(TEST_KEY_FILE, mode='rb') as file_object:
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Key.objects.create(key_data=file_object.read())
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signature = EmbeddedSignature.objects.first()
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self.assertEqual(signature.signature_id, TEST_SIGNATURE_ID)
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def test_embedded_signature_post_no_key_verify(self):
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with open(TEST_KEY_FILE, mode='rb') as file_object:
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key = Key.objects.create(key_data=file_object.read())
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with open(TEST_SIGNED_DOCUMENT_PATH, mode='rb') as file_object:
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signed_document = self.document_type.new_document(
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file_object=file_object
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)
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self.assertEqual(EmbeddedSignature.objects.count(), 1)
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signature = EmbeddedSignature.objects.first()
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self.assertEqual(
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signature.document_version, signed_document.latest_version
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)
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self.assertEqual(signature.key_id, TEST_KEY_ID)
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self.assertEqual(signature.signature_id, TEST_SIGNATURE_ID)
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key.delete()
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signature = EmbeddedSignature.objects.first()
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self.assertEqual(signature.signature_id, None)
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def test_embedded_signature_with_key(self):
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with open(TEST_KEY_FILE, mode='rb') as file_object:
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key = Key.objects.create(key_data=file_object.read())
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with open(TEST_SIGNED_DOCUMENT_PATH, mode='rb') as file_object:
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self.signed_document = self.document_type.new_document(
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file_object=file_object
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)
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self.assertEqual(EmbeddedSignature.objects.count(), 1)
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signature = EmbeddedSignature.objects.first()
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self.assertEqual(
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signature.document_version,
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self.signed_document.latest_version
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)
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self.assertEqual(signature.key_id, TEST_KEY_ID)
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self.assertEqual(signature.public_key_fingerprint, key.fingerprint)
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self.assertEqual(signature.signature_id, TEST_SIGNATURE_ID)
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def test_detached_signature_no_key(self):
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with open(TEST_DOCUMENT_PATH, mode='rb') as file_object:
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document = self.document_type.new_document(
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file_object=file_object
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)
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with open(TEST_SIGNATURE_FILE_PATH, mode='rb') as file_object:
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DetachedSignature.objects.create(
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document_version=document.latest_version,
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signature_file=File(file_object)
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)
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self.assertEqual(DetachedSignature.objects.count(), 1)
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signature = DetachedSignature.objects.first()
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self.assertEqual(signature.document_version, document.latest_version)
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self.assertEqual(signature.key_id, TEST_KEY_ID)
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self.assertEqual(signature.public_key_fingerprint, None)
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def test_detached_signature_with_key(self):
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with open(TEST_KEY_FILE, mode='rb') as file_object:
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key = Key.objects.create(key_data=file_object.read())
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with open(TEST_DOCUMENT_PATH, mode='rb') as file_object:
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document = self.document_type.new_document(
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file_object=file_object
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)
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with open(TEST_SIGNATURE_FILE_PATH, mode='rb') as file_object:
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DetachedSignature.objects.create(
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document_version=document.latest_version,
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signature_file=File(file_object)
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)
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self.assertEqual(DetachedSignature.objects.count(), 1)
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signature = DetachedSignature.objects.first()
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self.assertEqual(signature.document_version, document.latest_version)
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self.assertEqual(signature.key_id, TEST_KEY_ID)
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self.assertEqual(signature.public_key_fingerprint, key.fingerprint)
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def test_detached_signature_post_key_verify(self):
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with open(TEST_DOCUMENT_PATH, mode='rb') as file_object:
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document = self.document_type.new_document(
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file_object=file_object
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)
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with open(TEST_SIGNATURE_FILE_PATH, mode='rb') as file_object:
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DetachedSignature.objects.create(
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document_version=document.latest_version,
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signature_file=File(file_object)
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)
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self.assertEqual(DetachedSignature.objects.count(), 1)
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signature = DetachedSignature.objects.first()
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self.assertEqual(signature.document_version, document.latest_version)
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self.assertEqual(signature.key_id, TEST_KEY_ID)
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self.assertEqual(signature.public_key_fingerprint, None)
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with open(TEST_KEY_FILE, mode='rb') as file_object:
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key = Key.objects.create(key_data=file_object.read())
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signature = DetachedSignature.objects.first()
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self.assertEqual(signature.public_key_fingerprint, key.fingerprint)
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def test_detached_signature_post_no_key_verify(self):
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with open(TEST_KEY_FILE, mode='rb') as file_object:
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key = Key.objects.create(key_data=file_object.read())
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with open(TEST_DOCUMENT_PATH, mode='rb') as file_object:
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document = self.document_type.new_document(
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file_object=file_object
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)
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with open(TEST_SIGNATURE_FILE_PATH, mode='rb') as file_object:
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DetachedSignature.objects.create(
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document_version=document.latest_version,
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signature_file=File(file_object)
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)
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self.assertEqual(DetachedSignature.objects.count(), 1)
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signature = DetachedSignature.objects.first()
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self.assertEqual(signature.document_version, document.latest_version)
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self.assertEqual(signature.key_id, TEST_KEY_ID)
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self.assertEqual(signature.public_key_fingerprint, key.fingerprint)
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key.delete()
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signature = DetachedSignature.objects.first()
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self.assertEqual(signature.public_key_fingerprint, None)
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def test_document_no_signature(self):
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with open(TEST_DOCUMENT_PATH, mode='rb') as file_object:
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self.document_type.new_document(
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file_object=file_object
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)
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self.assertEqual(EmbeddedSignature.objects.count(), 0)
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def test_new_signed_version(self):
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with open(TEST_DOCUMENT_PATH, mode='rb') as file_object:
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document = self.document_type.new_document(
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file_object=file_object
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)
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with open(TEST_SIGNED_DOCUMENT_PATH, mode='rb') as file_object:
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signed_version = document.new_version(
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file_object=file_object, comment='test comment 1'
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)
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# Artifical delay since MySQL doesn't store microsecond data in
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# timestamps. Version timestamp is used to determine which version
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# is the latest.
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time.sleep(1)
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self.assertEqual(EmbeddedSignature.objects.count(), 1)
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signature = EmbeddedSignature.objects.first()
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self.assertEqual(signature.document_version, signed_version)
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self.assertEqual(signature.key_id, TEST_KEY_ID)
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@override_settings(OCR_AUTO_OCR=False)
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class EmbeddedSignaturesTestCase(BaseTestCase):
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def setUp(self):
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super(EmbeddedSignaturesTestCase, self).setUp()
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self.document_type = DocumentType.objects.create(
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label=TEST_DOCUMENT_TYPE_LABEL
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)
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def tearDown(self):
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self.document_type.delete()
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super(EmbeddedSignaturesTestCase, self).tearDown()
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def test_unsigned_document_version_method(self):
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TEST_UNSIGNED_DOCUMENT_COUNT = 2
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TEST_SIGNED_DOCUMENT_COUNT = 2
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for count in range(TEST_UNSIGNED_DOCUMENT_COUNT):
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with open(TEST_DOCUMENT_PATH, mode='rb') as file_object:
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self.document_type.new_document(
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file_object=file_object
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)
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for count in range(TEST_SIGNED_DOCUMENT_COUNT):
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with open(TEST_SIGNED_DOCUMENT_PATH, mode='rb') as file_object:
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self.document_type.new_document(
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file_object=file_object
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)
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self.assertEqual(
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EmbeddedSignature.objects.unsigned_document_versions().count(),
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TEST_UNSIGNED_DOCUMENT_COUNT
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)
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def test_task_verify_missing_embedded_signature(self):
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# Silence converter logging
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logging.getLogger('converter.backends').setLevel(logging.CRITICAL)
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old_hooks = DocumentVersion._post_save_hooks
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DocumentVersion._post_save_hooks = {}
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TEST_UNSIGNED_DOCUMENT_COUNT = 2
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TEST_SIGNED_DOCUMENT_COUNT = 2
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for count in range(TEST_UNSIGNED_DOCUMENT_COUNT):
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with open(TEST_DOCUMENT_PATH, mode='rb') as file_object:
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self.document_type.new_document(
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file_object=file_object
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)
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for count in range(TEST_SIGNED_DOCUMENT_COUNT):
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with open(TEST_SIGNED_DOCUMENT_PATH, mode='rb') as file_object:
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self.document_type.new_document(
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file_object=file_object
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)
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self.assertEqual(
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EmbeddedSignature.objects.unsigned_document_versions().count(),
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TEST_UNSIGNED_DOCUMENT_COUNT + TEST_SIGNED_DOCUMENT_COUNT
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)
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DocumentVersion._post_save_hooks = old_hooks
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task_verify_missing_embedded_signature.delay()
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self.assertEqual(
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EmbeddedSignature.objects.unsigned_document_versions().count(),
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TEST_UNSIGNED_DOCUMENT_COUNT
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)
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def test_signing(self):
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key = Key.objects.create(key_data=TEST_KEY_DATA)
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with open(TEST_DOCUMENT_PATH, mode='rb') as file_object:
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document = self.document_type.new_document(
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file_object=file_object
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)
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with document.latest_version.open() as file_object:
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file_object.seek(0, 2)
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original_size = file_object.tell()
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file_object.seek(0)
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original_hash = hashlib.sha256(file_object.read()).hexdigest()
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new_version = EmbeddedSignature.objects.sign_document_version(
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document_version=document.latest_version, key=key,
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passphrase=TEST_KEY_PASSPHRASE
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)
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self.assertEqual(EmbeddedSignature.objects.count(), 1)
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with new_version.open() as file_object:
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file_object.seek(0, 2)
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new_size = file_object.tell()
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file_object.seek(0)
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new_hash = hashlib.sha256(file_object.read()).hexdigest()
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self.assertEqual(original_size, new_size)
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self.assertEqual(original_hash, new_hash)
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