Fix certificate type error when exporting to file

[netoarmando]

Commands ipa ca-show and ipa cert-show share the same code, this commit updates the former, closing the gap between them.

Reflecting the changes done in 5a44ca6.

https://pagure.io/freeipa/issue/7628

Signed-off-by: Armando Neto abiagion@redhat.com

To be more specific, ipa cert-show code is:

freeipa/ipaclient/plugins/cert.py

Lines 51 to 73 in 5a44ca6

	def forward(self, *args, **options):
	if 'certificate_out' in options:
	certificate_out = options.pop('certificate_out')
	try:
	util.check_writable_file(certificate_out)
	except errors.FileError as e:
	raise errors.ValidationError(name='certificate-out',
	error=str(e))
	else:
	certificate_out = None
	result = super(CertRetrieveOverride, self).forward(*args, **options)
	if certificate_out is not None:
	if options.get('chain', False):
	certs = result['result']['certificate_chain']
	else:
	certs = [result['result']['certificate']]
	certs = (x509.load_der_x509_certificate(base64.b64decode(cert))
	for cert in certs)
	x509.write_certificate_list(certs, certificate_out)
	return result

[tiran]

Tricky! This approach is a bit of a hack. In Python 3, base64.b64decode() accepts both ASCII text and ASCII bytes, and returns bytes. It works for me.

[tiran]

master:

• c706449 Fix certificate type error when exporting to file