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from subprocess import Popen, PIPE
from saml2.sigver import get_xmlsec_binary
from saml2.extension.algsupport import SigningMethod
from saml2.extension.algsupport import DigestMethod
__author__ = 'roland'
DIGEST_METHODS = {
"hmac-md5": 'http://www.w3.org/2001/04/xmldsig-more#md5', # test framework only!
"hmac-sha1": 'http://www.w3.org/2000/09/xmldsig#sha1',
"hmac-sha224": 'http://www.w3.org/2001/04/xmldsig-more#sha224',
"hmac-sha256": 'http://www.w3.org/2001/04/xmlenc#sha256',
"hmac-sha384": 'http://www.w3.org/2001/04/xmldsig-more#sha384',
"hmac-sha512": 'http://www.w3.org/2001/04/xmlenc#sha512',
"hmac-ripemd160": 'http://www.w3.org/2001/04/xmlenc#ripemd160'
}
SIGNING_METHODS = {
"rsa-md5": 'http://www.w3.org/2001/04/xmldsig-more#rsa-md5',
"rsa-ripemd160": 'http://www.w3.org/2001/04/xmldsig-more#rsa-ripemd160',
"rsa-sha1": 'http://www.w3.org/2000/09/xmldsig#rsa-sha1',
"rsa-sha224": 'http://www.w3.org/2001/04/xmldsig-more#rsa-sha224',
"rsa-sha256": 'http://www.w3.org/2001/04/xmldsig-more#rsa-sha256',
"rsa-sha384": 'http://www.w3.org/2001/04/xmldsig-more#rsa-sha384',
"rsa-sha512": 'http://www.w3.org/2001/04/xmldsig-more#rsa-sha512',
"dsa-sha1": 'http,//www.w3.org/2000/09/xmldsig#dsa-sha1',
'dsa-sha256': 'http://www.w3.org/2009/xmldsig11#dsa-sha256',
'ecdsa_sha1': 'http://www.w3.org/2001/04/xmldsig-more#ECDSA_sha1',
'ecdsa_sha224': 'http://www.w3.org/2001/04/xmldsig-more#ECDSA_sha224',
'ecdsa_sha256': 'http://www.w3.org/2001/04/xmldsig-more#ECDSA_sha256',
'ecdsa_sha384': 'http://www.w3.org/2001/04/xmldsig-more#ECDSA_sha384',
'ecdsa_sha512': 'http://www.w3.org/2001/04/xmldsig-more#ECDSA_sha512',
}
def get_algorithm_support(xmlsec):
com_list = [xmlsec, '--list-transforms']
pof = Popen(com_list, stderr=PIPE, stdout=PIPE)
p_out = pof.stdout.read().decode('utf-8')
p_err = pof.stderr.read().decode('utf-8')
pof.wait()
if not p_err:
p = p_out.splitlines()
algs = [x.strip('"') for x in p[1].split(',')]
digest = []
signing = []
for alg in algs:
if alg in DIGEST_METHODS:
digest.append(alg)
elif alg in SIGNING_METHODS:
signing.append(alg)
return {"digest": digest, "signing": signing}
raise SystemError(p_err)
def algorithm_support_in_metadata(xmlsec):
if xmlsec is None:
return []
support = get_algorithm_support(xmlsec)
element_list = []
for alg in support["digest"]:
element_list.append(DigestMethod(algorithm=DIGEST_METHODS[alg]))
for alg in support["signing"]:
element_list.append(SigningMethod(algorithm=SIGNING_METHODS[alg]))
return element_list
if __name__ == '__main__':
xmlsec = get_xmlsec_binary()
res = get_algorithm_support(xmlsec)
print(res)
for a in algorithm_support_in_metadata(xmlsec):
print(a)
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