This repository has been archived on 2024-05-31. You can view files and clone it, but cannot push or open issues or pull requests.
authentik/passbook/saml_idp/xml_signing.py

30 lines
1.0 KiB
Python

"""Signing code goes here."""
from logging import getLogger
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives import serialization
from defusedxml import ElementTree
from lxml import etree
from signxml import XMLSigner
from passbook.lib.utils.template import render_to_string
LOGGER = getLogger(__name__)
def sign_with_signxml(private_key, data, cert, reference_uri=None):
"""Sign Data with signxml"""
key = serialization.load_pem_private_key(
str.encode('\n'.join([x.strip() for x in private_key.split('\n')])),
password=None, backend=default_backend())
root = etree.fromstring(data)
# root = ElementTree.fromstring(data, forbid_entities=False)
signer = XMLSigner(c14n_algorithm='http://www.w3.org/2001/10/xml-exc-c14n#')
signed = signer.sign(root, key=key, cert=cert, reference_uri=reference_uri)
return ElementTree.tostring(signed)
def get_signature_xml():
"""Returns XML Signature for subject."""
return render_to_string('saml/xml/signature.xml', {})