2 * Copyright 2001-2009 Internet2
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 * ClientCertAuthRule.cpp
20 * TLS client authentication SecurityPolicyRule
24 #include "exceptions.h"
25 #include "binding/SecurityPolicyRule.h"
26 #include "saml2/metadata/Metadata.h"
27 #include "saml2/metadata/MetadataCredentialCriteria.h"
28 #include "saml2/metadata/MetadataProvider.h"
30 #include <xmltooling/logging.h>
31 #include <xmltooling/security/Credential.h>
32 #include <xmltooling/security/X509TrustEngine.h>
33 #include <xmltooling/util/ReplayCache.h>
35 using namespace opensaml::saml2md;
36 using namespace opensaml;
37 using namespace xmltooling::logging;
38 using namespace xmltooling;
42 class SAML_DLLLOCAL ClientCertAuthRule : public SecurityPolicyRule
45 ClientCertAuthRule(const DOMElement* e);
46 virtual ~ClientCertAuthRule() {}
48 const char* getType() const {
49 return CLIENTCERTAUTH_POLICY_RULE;
51 bool evaluate(const XMLObject& message, const GenericRequest* request, SecurityPolicy& policy) const;
57 SecurityPolicyRule* SAML_DLLLOCAL ClientCertAuthRuleFactory(const DOMElement* const & e)
59 return new ClientCertAuthRule(e);
62 static const XMLCh errorFatal[] = UNICODE_LITERAL_10(e,r,r,o,r,F,a,t,a,l);
65 ClientCertAuthRule::ClientCertAuthRule(const DOMElement* e) : m_errorFatal(false)
68 const XMLCh* flag = e->getAttributeNS(NULL, errorFatal);
69 m_errorFatal = (flag && (*flag==chLatin_t || *flag==chDigit_1));
73 bool ClientCertAuthRule::evaluate(const XMLObject& message, const GenericRequest* request, SecurityPolicy& policy) const
75 Category& log=Category::getInstance(SAML_LOGCAT".SecurityPolicyRule.ClientCertAuth");
80 if (!policy.getIssuerMetadata()) {
81 log.debug("ignoring message, no issuer metadata supplied");
85 const X509TrustEngine* x509trust;
86 if (!(x509trust=dynamic_cast<const X509TrustEngine*>(policy.getTrustEngine()))) {
87 log.debug("ignoring message, no X509TrustEngine supplied");
91 const std::vector<XSECCryptoX509*>& chain = request->getClientCertificates();
95 // Set up criteria object, including peer name to enforce cert name checking.
96 MetadataCredentialCriteria cc(*(policy.getIssuerMetadata()));
97 auto_ptr_char pn(policy.getIssuer()->getName());
98 cc.setPeerName(pn.get());
99 cc.setUsage(Credential::TLS_CREDENTIAL);
101 if (!x509trust->validate(chain.front(), chain, *(policy.getMetadataProvider()), &cc)) {
103 throw SecurityPolicyException("Client certificate supplied, but could not be verified.");
104 log.error("unable to verify certificate chain with supplied trust engine");
108 log.debug("client certificate verified against message issuer");
109 policy.setAuthenticated(true);