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/SecurityPolicy.h"
26 #include "binding/SecurityPolicyRule.h"
27 #include "saml2/metadata/Metadata.h"
28 #include "saml2/metadata/MetadataCredentialCriteria.h"
29 #include "saml2/metadata/MetadataProvider.h"
31 #include <xmltooling/logging.h>
32 #include <xmltooling/io/GenericRequest.h>
33 #include <xmltooling/security/Credential.h>
34 #include <xmltooling/security/X509TrustEngine.h>
35 #include <xmltooling/util/ReplayCache.h>
37 using namespace opensaml::saml2md;
38 using namespace opensaml;
39 using namespace xmltooling::logging;
40 using namespace xmltooling;
44 class SAML_DLLLOCAL ClientCertAuthRule : public SecurityPolicyRule
47 ClientCertAuthRule(const DOMElement* e);
48 virtual ~ClientCertAuthRule() {}
50 const char* getType() const {
51 return CLIENTCERTAUTH_POLICY_RULE;
53 bool evaluate(const XMLObject& message, const GenericRequest* request, SecurityPolicy& policy) const;
59 SecurityPolicyRule* SAML_DLLLOCAL ClientCertAuthRuleFactory(const DOMElement* const & e)
61 return new ClientCertAuthRule(e);
64 static const XMLCh errorFatal[] = UNICODE_LITERAL_10(e,r,r,o,r,F,a,t,a,l);
67 ClientCertAuthRule::ClientCertAuthRule(const DOMElement* e) : m_errorFatal(false)
70 const XMLCh* flag = e->getAttributeNS(NULL, errorFatal);
71 m_errorFatal = (flag && (*flag==chLatin_t || *flag==chDigit_1));
75 bool ClientCertAuthRule::evaluate(const XMLObject& message, const GenericRequest* request, SecurityPolicy& policy) const
77 Category& log=Category::getInstance(SAML_LOGCAT".SecurityPolicyRule.ClientCertAuth");
82 if (!policy.getIssuerMetadata()) {
83 log.debug("ignoring message, no issuer metadata supplied");
87 const X509TrustEngine* x509trust;
88 if (!(x509trust=dynamic_cast<const X509TrustEngine*>(policy.getTrustEngine()))) {
89 log.debug("ignoring message, no X509TrustEngine supplied");
93 const vector<XSECCryptoX509*>& chain = request->getClientCertificates();
97 // Set up criteria object, including peer name to enforce cert name checking.
98 MetadataCredentialCriteria cc(*(policy.getIssuerMetadata()));
99 auto_ptr_char pn(policy.getIssuer()->getName());
100 cc.setPeerName(pn.get());
101 cc.setUsage(Credential::TLS_CREDENTIAL);
103 if (!x509trust->validate(chain.front(), chain, *(policy.getMetadataProvider()), &cc)) {
105 throw SecurityPolicyException("Client certificate supplied, but could not be verified.");
106 log.error("unable to verify certificate chain with supplied trust engine");
110 log.debug("client certificate verified against message issuer");
111 policy.setAuthenticated(true);