+#!/usr/bin/python
+#
+# Copyright (C) 2014 Simo Sorce <simo@redhat.com>
+#
+# see file 'COPYING' for use and warranty information
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+from ipsilon.tools.certs import Certificate
+from lxml import etree
+import lasso
+
+
+SAML2_NAMEID_MAP = {
+ 'email': lasso.SAML2_NAME_IDENTIFIER_FORMAT_EMAIL,
+ 'encrypted': lasso.SAML2_NAME_IDENTIFIER_FORMAT_ENCRYPTED,
+ 'entity': lasso.SAML2_NAME_IDENTIFIER_FORMAT_ENTITY,
+ 'kerberos': lasso.SAML2_NAME_IDENTIFIER_FORMAT_KERBEROS,
+ 'persistent': lasso.SAML2_NAME_IDENTIFIER_FORMAT_PERSISTENT,
+ 'transient': lasso.SAML2_NAME_IDENTIFIER_FORMAT_TRANSIENT,
+ 'unspecified': lasso.SAML2_NAME_IDENTIFIER_FORMAT_UNSPECIFIED,
+ 'windows': lasso.SAML2_NAME_IDENTIFIER_FORMAT_WINDOWS,
+ 'x509': lasso.SAML2_NAME_IDENTIFIER_FORMAT_X509,
+}
+
+
+EDESC = '{%s}EntityDescriptor' % lasso.SAML2_METADATA_HREF
+NSMAP = {
+ 'md': lasso.SAML2_METADATA_HREF,
+ 'ds': lasso.DS_HREF
+}
+
+IDPDESC = 'IDPSSODescriptor'
+SPDESC = 'SPSSODescriptor'
+
+IDP_ROLE = 'idp'
+SP_ROLE = 'sp'
+
+SSO_SERVICE = 'SingleSignOnService'
+LOGOUT_SERVICE = 'SingleLogoutService'
+ASSERTION_SERVICE = 'AssertionConsumerService'
+
+
+def mdElement(_parent, _tag, **kwargs):
+ tag = '{%s}%s' % (lasso.SAML2_METADATA_HREF, _tag)
+ return etree.SubElement(_parent, tag, **kwargs)
+
+
+def dsElement(_parent, _tag, **kwargs):
+ tag = '{%s}%s' % (lasso.DS_HREF, _tag)
+ return etree.SubElement(_parent, tag, **kwargs)
+
+
+class Metadata(object):
+
+ def __init__(self, role=None):
+ self.root = etree.Element(EDESC, nsmap=NSMAP)
+ self.entityid = None
+ self.role = None
+ self.set_role(role)
+
+ def set_entity_id(self, url):
+ self.entityid = url
+ self.root.set('entityID', url)
+
+ def set_role(self, role):
+ if role is None:
+ return
+ elif role == IDP_ROLE:
+ description = IDPDESC
+ elif role == SP_ROLE:
+ description = SPDESC
+ else:
+ raise ValueError('invalid role: %s' % role)
+ self.role = mdElement(self.root, description)
+ self.role.set('protocolSupportEnumeration', lasso.SAML2_PROTOCOL_HREF)
+ return self.role
+
+ def add_cert(self, certdata, use):
+ desc = mdElement(self.role, 'KeyDescriptor')
+ desc.set('use', use)
+ info = dsElement(desc, 'KeyInfo')
+ data = dsElement(info, 'X509Data')
+ cert = dsElement(data, 'X509Certificate')
+ cert.text = certdata
+
+ def add_certs(self, signcert=None, enccert=None):
+ if signcert:
+ self.add_cert(signcert.get_cert(), 'signing')
+ if enccert:
+ self.add_cert(enccert.get_cert(), 'encryption')
+
+ def add_service(self, svctype, binding, location):
+ svc = mdElement(self.role, svctype)
+ svc.set('Binding', binding)
+ svc.set('Location', location)
+
+ def add_allowed_name_format(self, name_format):
+ nameidfmt = mdElement(self.role, 'NameIDFormat')
+ nameidfmt.text = name_format
+
+ def output(self, path):
+ data = etree.tostring(self.root, xml_declaration=True,
+ encoding='UTF-8', pretty_print=True)
+ with open(path, 'w') as f:
+ f.write(data)
+
+
+if __name__ == '__main__':
+ import tempfile
+ import shutil
+ import os
+
+ tmpdir = tempfile.mkdtemp()
+
+ try:
+ # Test IDP generation
+ sign_cert = Certificate(tmpdir)
+ sign_cert.generate('idp-signing-cert', 'idp.ipsilon.example.com')
+ enc_cert = Certificate(tmpdir)
+ enc_cert.generate('idp-encryption-cert', 'idp.ipsilon.example.com')
+ idp = Metadata()
+ idp.set_entity_id('https://ipsilon.example.com/idp/metadata')
+ idp.set_role(IDP_ROLE)
+ idp.add_certs(sign_cert, enc_cert)
+ idp.add_service(SSO_SERVICE, lasso.SAML2_METADATA_BINDING_POST,
+ 'https://ipsilon.example.com/idp/saml2/POST')
+ idp.add_service(SSO_SERVICE, lasso.SAML2_METADATA_BINDING_REDIRECT,
+ 'https://ipsilon.example.com/idp/saml2/Redirect')
+ for k in SAML2_NAMEID_MAP:
+ idp.add_allowed_name_format(SAML2_NAMEID_MAP[k])
+ md_file = os.path.join(tmpdir, 'metadata.xml')
+ idp.output(md_file)
+ with open(md_file) as fd:
+ text = fd.read()
+ print '==================== IDP ===================='
+ print text
+ print '============================================='
+
+ # Test SP generation
+ sign_cert = Certificate(tmpdir)
+ sign_cert.generate('sp-signing-cert', 'sp.ipsilon.example.com')
+ sp = Metadata()
+ sp.set_entity_id('https://ipsilon.example.com/samlsp/metadata')
+ sp.set_role(SP_ROLE)
+ sp.add_certs(sign_cert)
+ sp.add_service(LOGOUT_SERVICE, lasso.SAML2_METADATA_BINDING_REDIRECT,
+ 'https://ipsilon.example.com/samlsp/logout')
+ sp.add_service(ASSERTION_SERVICE, lasso.SAML2_METADATA_BINDING_POST,
+ 'https://ipsilon.example.com/samlsp/postResponse')
+ md_file = os.path.join(tmpdir, 'metadata.xml')
+ sp.output(md_file)
+ with open(md_file) as fd:
+ text = fd.read()
+ print '===================== SP ===================='
+ print text
+ print '============================================='
+
+ finally:
+ shutil.rmtree(tmpdir)
projects / cascardo / ipsilon.git / commitdiff