count property
DigitalSignatureCollection.count property
Gets the number of elements contained in the collection.
@property
def count(self) -> int:
...
Examples
Shows how to sign documents with X.509 certificates.
# Verify that a document is not signed.
self.assertFalse(aw.FileFormatUtil.detect_file_format(file_name=MY_DIR + 'Document.docx').has_digital_signature)
# Create a CertificateHolder object from a PKCS12 file, which we will use to sign the document.
certificate_holder = aw.digitalsignatures.CertificateHolder.create(file_name=MY_DIR + 'morzal.pfx', password='aw', alias=None)
# There are two ways of saving a signed copy of a document to the local file system:
# 1 - Designate a document by a local system filename and save a signed copy at a location specified by another filename.
sign_options = aw.digitalsignatures.SignOptions()
sign_options.sign_time = datetime.datetime.now()
aw.digitalsignatures.DigitalSignatureUtil.sign(src_file_name=MY_DIR + 'Document.docx', dst_file_name=ARTIFACTS_DIR + 'Document.DigitalSignature.docx', cert_holder=certificate_holder, sign_options=sign_options)
self.assertTrue(aw.FileFormatUtil.detect_file_format(file_name=ARTIFACTS_DIR + 'Document.DigitalSignature.docx').has_digital_signature)
# 2 - Take a document from a stream and save a signed copy to another stream.
with system_helper.io.FileStream(MY_DIR + 'Document.docx', system_helper.io.FileMode.OPEN) as in_doc:
with system_helper.io.FileStream(ARTIFACTS_DIR + 'Document.DigitalSignature.docx', system_helper.io.FileMode.CREATE) as out_doc:
aw.digitalsignatures.DigitalSignatureUtil.sign(src_stream=in_doc, dst_stream=out_doc, cert_holder=certificate_holder)
self.assertTrue(aw.FileFormatUtil.detect_file_format(file_name=ARTIFACTS_DIR + 'Document.DigitalSignature.docx').has_digital_signature)
# Please verify that all of the document's digital signatures are valid and check their details.
signed_doc = aw.Document(file_name=ARTIFACTS_DIR + 'Document.DigitalSignature.docx')
digital_signature_collection = signed_doc.digital_signatures
self.assertTrue(digital_signature_collection.is_valid)
self.assertEqual(1, digital_signature_collection.count)
self.assertEqual(aw.digitalsignatures.DigitalSignatureType.XML_DSIG, digital_signature_collection[0].signature_type)
self.assertEqual('CN=Morzal.Me', signed_doc.digital_signatures[0].issuer_name)
self.assertEqual('CN=Morzal.Me', signed_doc.digital_signatures[0].subject_name)