2 * Copyright 2001-2006 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 * SAML1MessageRule.cpp
20 * SAML 1.x message extraction rule
24 #include "exceptions.h"
25 #include "saml2/binding/SAML2MessageRule.h"
26 #include "saml2/core/Protocols.h"
27 #include "saml2/metadata/Metadata.h"
28 #include "saml2/metadata/MetadataProvider.h"
29 #include "util/SAMLConstants.h"
31 #include <log4cpp/Category.hh>
33 using namespace opensaml::saml2md;
34 using namespace opensaml::saml2p;
35 using namespace opensaml::saml2;
36 using namespace opensaml;
37 using namespace xmltooling;
38 using namespace log4cpp;
42 SecurityPolicyRule* SAML_DLLLOCAL SAML2MessageRuleFactory(const DOMElement* const & e)
44 return new SAML2MessageRule(e);
48 void SAML2MessageRule::evaluate(const XMLObject& message, const GenericRequest* request, SecurityPolicy& policy) const
50 Category& log=Category::getInstance(SAML_LOGCAT".SecurityPolicyRule.SAML2Message");
52 const QName& q = message.getElementQName();
53 policy.setMessageQName(&q);
56 const opensaml::RootObject& samlRoot = dynamic_cast<const opensaml::RootObject&>(message);
57 policy.setMessageID(samlRoot.getID());
58 policy.setIssueInstant(samlRoot.getIssueInstantEpoch());
60 if (!XMLString::equals(q.getNamespaceURI(), samlconstants::SAML20P_NS)) {
61 log.warn("not a SAML 2.0 protocol message");
62 throw BindingException("Message was not a recognized SAML 2.0 protocol element.");
65 log.debug("extracting issuer from message");
66 const saml2::RootObject& saml2Root = dynamic_cast<const saml2::RootObject&>(samlRoot);
67 Issuer* issuer = saml2Root.getIssuer();
68 if (issuer && issuer->getName()) {
69 auto_ptr<Issuer> copy(issuer->cloneIssuer());
70 policy.setIssuer(copy.get());
74 // No issuer in the message, so we have to try the Response approach.
75 const vector<Assertion*>& assertions = dynamic_cast<const Response&>(saml2Root).getAssertions();
76 if (!assertions.empty()) {
77 issuer = assertions.front()->getIssuer();
78 if (issuer && issuer->getName()) {
79 auto_ptr<Issuer> copy(issuer->cloneIssuer());
80 policy.setIssuer(copy.get());
86 if (!policy.getIssuer()) {
87 log.warn("issuer identity not extracted");
91 if (log.isDebugEnabled()) {
92 auto_ptr_char iname(policy.getIssuer()->getName());
93 log.debug("message from (%s)", iname.get());
96 if (policy.getMetadataProvider() && policy.getRole()) {
97 if (policy.getIssuer()->getFormat() && !XMLString::equals(policy.getIssuer()->getFormat(), saml2::NameIDType::ENTITY)) {
98 log.warn("non-system entity issuer, skipping metadata lookup");
102 log.debug("searching metadata for message issuer...");
103 const EntityDescriptor* entity = policy.getMetadataProvider()->getEntityDescriptor(policy.getIssuer()->getName());
105 auto_ptr_char temp(policy.getIssuer()->getName());
106 log.warn("no metadata found, can't establish identity of issuer (%s)", temp.get());
110 log.debug("matched message issuer against metadata, searching for applicable role...");
111 const RoleDescriptor* roledesc=entity->getRoleDescriptor(*policy.getRole(), samlconstants::SAML20P_NS);
113 log.warn("unable to find compatible role (%s) in metadata", policy.getRole()->toString().c_str());
116 policy.setIssuerMetadata(roledesc);
121 log.warn("caught a bad_cast while examining message");