2 * Copyright 2009-2010 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 * BearerConfirmationRule.cpp
20 * SAML 2.0 Bearer SubjectConfirmation SecurityPolicyRule.
24 #include "exceptions.h"
25 #include "binding/SecurityPolicyRule.h"
26 #include "saml2/core/Assertions.h"
27 #include "saml2/profile/SAML2AssertionPolicy.h"
29 #include <xercesc/util/XMLUniDefs.hpp>
30 #include <xmltooling/logging.h>
31 #include <xmltooling/XMLToolingConfig.h>
32 #include <xmltooling/io/HTTPRequest.h>
34 using namespace opensaml::saml2;
35 using namespace xmltooling;
41 class SAML_DLLLOCAL BearerConfirmationRule : public opensaml::SecurityPolicyRule
44 BearerConfirmationRule(const DOMElement* e);
46 virtual ~BearerConfirmationRule() {
48 const char* getType() const {
49 return BEARER_POLICY_RULE;
51 bool evaluate(const XMLObject& message, const GenericRequest* request, opensaml::SecurityPolicy& policy) const;
54 bool m_validity, m_recipient, m_correlation, m_fatal;
57 opensaml::SecurityPolicyRule* SAML_DLLLOCAL BearerConfirmationRuleFactory(const DOMElement* const & e)
59 return new BearerConfirmationRule(e);
62 static const XMLCh checkValidity[] = UNICODE_LITERAL_13(c,h,e,c,k,V,a,l,i,d,i,t,y);
63 static const XMLCh checkRecipient[] = UNICODE_LITERAL_14(c,h,e,c,k,R,e,c,i,p,i,e,n,t);
64 static const XMLCh checkCorrelation[] = UNICODE_LITERAL_16(c,h,e,c,k,C,o,r,r,e,l,a,t,i,o,n);
65 static const XMLCh missingFatal[] = UNICODE_LITERAL_12(m,i,s,s,i,n,g,F,a,t,a,l);
69 BearerConfirmationRule::BearerConfirmationRule(const DOMElement* e)
70 : m_validity(XMLHelper::getAttrBool(e, true, checkValidity)),
71 m_recipient(XMLHelper::getAttrBool(e, true, checkRecipient)),
72 m_correlation(XMLHelper::getAttrBool(e, true, checkCorrelation)),
73 m_fatal(XMLHelper::getAttrBool(e, true, missingFatal))
77 bool BearerConfirmationRule::evaluate(const XMLObject& message, const GenericRequest* request, opensaml::SecurityPolicy& policy) const
79 const Assertion* a=dynamic_cast<const Assertion*>(&message);
83 logging::Category& log = logging::Category::getInstance(SAML_LOGCAT".SecurityPolicyRule.BearerConfirmation");
85 const char* msg="assertion is missing bearer SubjectConfirmation";
86 const Subject* subject = a->getSubject();
88 const vector<SubjectConfirmation*>& confs = subject->getSubjectConfirmations();
89 for (vector<SubjectConfirmation*>::const_iterator sc = confs.begin(); sc!=confs.end(); ++sc) {
90 if (XMLString::equals((*sc)->getMethod(), SubjectConfirmation::BEARER)) {
92 const SubjectConfirmationDataType* data = dynamic_cast<const SubjectConfirmationDataType*>((*sc)->getSubjectConfirmationData());
95 const HTTPRequest* httpRequest = dynamic_cast<const HTTPRequest*>(request);
96 if (httpRequest && httpRequest->getRequestURL()) {
97 string dest = httpRequest->getRequestURL();
98 auto_ptr_XMLCh destination(dest.substr(0,dest.find('?')).c_str());
99 if (!XMLString::equals(destination.get(), data ? data->getRecipient() : nullptr)) {
100 msg = "bearer confirmation failed with recipient mismatch";
106 if (m_correlation && policy.getCorrelationID() && *(policy.getCorrelationID())) {
107 if (!XMLString::equals(policy.getCorrelationID(), data ? data->getInResponseTo() : nullptr)) {
108 msg = "bearer confirmation failed with request correlation mismatch";
114 if (!data || !data->getNotOnOrAfter()) {
115 msg = "bearer SubjectConfirmationData missing NotOnOrAfter attribute";
118 else if (data->getNotOnOrAfterEpoch() <= policy.getTime() - XMLToolingConfig::getConfig().clock_skew_secs) {
119 msg = "bearer confirmation has expired";
123 if (data && data->getNotBefore() && policy.getTime() + XMLToolingConfig::getConfig().clock_skew_secs < data->getNotBeforeEpoch()) {
124 msg = "bearer confirmation not yet valid";
129 SAML2AssertionPolicy* saml2policy = dynamic_cast<SAML2AssertionPolicy*>(&policy);
131 saml2policy->setSubjectConfirmation(*sc);
132 log.debug("assertion satisfied bearer confirmation requirements");
138 log.error(msg ? msg : "no error message");
140 throw SecurityPolicyException("Unable to locate satisfiable bearer SubjectConfirmation in assertion.");