def sign_document_version(self,
document_version,
key,
passphrase=None,
user=None):
temporary_file_object, temporary_filename = mkstemp()
try:
with document_version.open() as file_object:
key.sign_file(binary=True,
file_object=file_object,
output=temporary_filename,
passphrase=passphrase)
except Exception:
raise
else:
# The result of key.sign_file does not contain the signtarure ID.
# Verify the signed file to obtain the signature ID.
with open(temporary_filename, mode='rb') as file_object:
result = Key.objects.verify_file(file_object=file_object)
with open(temporary_filename, mode='rb') as file_object:
document_version.document.new_version(file_object=file_object,
_user=user)
return self.get(signature_id=result.signature_id)
finally:
os.unlink(temporary_filename)
def sign_document_version(self,
document_version,
key,
passphrase=None,
user=None):
temporary_file_object, temporary_filename = mkstemp()
try:
with document_version.open() as file_object:
key.sign_file(binary=True,
file_object=file_object,
output=temporary_filename,
passphrase=passphrase)
except Exception:
raise
else:
with open(temporary_filename, mode='rb') as file_object:
new_version = document_version.document.new_version(
file_object=file_object, _user=user)
# This is a potential race condition but we have not way
# to access the final signature at this point.
signature = self.filter(document_version=new_version).first()
return signature or self.none()
finally:
os.unlink(temporary_filename)
def sign_document_version(self,
document_version,
key,
passphrase=None,
user=None):
temporary_file_object, temporary_filename = mkstemp()
try:
with document_version.open() as file_object:
key.sign_file(binary=True,
detached=True,
file_object=file_object,
output=temporary_filename,
passphrase=passphrase)
except Exception:
raise
else:
return self.create(document_version=document_version,
signature_file=File(temporary_file_object))
finally:
os.unlink(temporary_filename)
def sign_document_version(self,
document_version,
key,
passphrase=None,
user=None):
temporary_file_object, temporary_filename = mkstemp()
try:
with document_version.open() as file_object:
key.sign_file(binary=True,
file_object=file_object,
output=temporary_filename,
passphrase=passphrase)
except Exception:
raise
else:
with open(temporary_filename, mode='rb') as file_object:
new_version = document_version.document.new_version(
file_object=file_object, _user=user)
finally:
os.unlink(temporary_filename)
return new_version