2 * Copyright 2001-2007 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,
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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 "RootObject.h"
26 #include "binding/SecurityPolicyRule.h"
27 #include "saml1/core/Assertions.h"
28 #include "saml1/core/Protocols.h"
29 #include "saml2/core/Assertions.h"
30 #include "saml2/metadata/Metadata.h"
31 #include "saml2/metadata/MetadataProvider.h"
32 #include "util/SAMLConstants.h"
34 #include <xmltooling/logging.h>
36 using namespace opensaml::saml2md;
37 using namespace opensaml::saml1p;
38 using namespace opensaml;
39 using namespace xmltooling::logging;
40 using namespace xmltooling;
45 class SAML_DLLLOCAL SAML1MessageRule : public SecurityPolicyRule
48 SAML1MessageRule(const DOMElement* e) {}
49 virtual ~SAML1MessageRule() {}
51 const char* getType() const {
52 return SAML1MESSAGE_POLICY_RULE;
54 void evaluate(const XMLObject& message, const GenericRequest* request, const XMLCh* protocol, SecurityPolicy& policy) const;
57 SecurityPolicyRule* SAML_DLLLOCAL SAML1MessageRuleFactory(const DOMElement* const & e)
59 return new SAML1MessageRule(e);
63 void SAML1MessageRule::evaluate(
64 const XMLObject& message, const GenericRequest* request, const XMLCh* protocol, SecurityPolicy& policy
67 // Only handle SAML 1.x messages.
68 const QName& q = message.getElementQName();
69 if (!XMLString::equals(q.getNamespaceURI(), samlconstants::SAML1P_NS) &&
70 !XMLString::equals(q.getNamespaceURI(), samlconstants::SAML1_NS))
73 Category& log=Category::getInstance(SAML_LOGCAT".SecurityPolicyRule.SAML1Message");
76 const RootObject& samlRoot = dynamic_cast<const RootObject&>(message);
77 policy.setMessageID(samlRoot.getID());
78 policy.setIssueInstant(samlRoot.getIssueInstantEpoch());
80 log.debug("extracting issuer from message");
82 const saml1::Assertion* a = NULL;
84 // Handle assertions directly.
85 if (XMLString::equals(q.getLocalPart(), saml1::Assertion::LOCAL_NAME))
86 a = dynamic_cast<const saml1::Assertion*>(&samlRoot);
88 // Only samlp:Response is known to carry issuer (via payload) in standard SAML 1.x.
89 if (!a && XMLString::equals(q.getLocalPart(), Response::LOCAL_NAME)) {
90 // Should be a samlp:Response.
91 const vector<saml1::Assertion*>& assertions = dynamic_cast<const saml1p::Response&>(samlRoot).getAssertions();
92 if (!assertions.empty())
93 a = assertions.front();
97 policy.setIssuer(a->getIssuer());
100 log.warn("issuer identity not extracted");
104 if (log.isDebugEnabled()) {
105 auto_ptr_char iname(a->getIssuer());
106 log.debug("message from (%s)", iname.get());
109 if (policy.getIssuerMetadata()) {
110 log.debug("metadata for issuer already set, leaving in place");
114 if (policy.getMetadataProvider() && policy.getRole()) {
115 log.debug("searching metadata for message issuer...");
116 const EntityDescriptor* entity = policy.getMetadataProvider()->getEntityDescriptor(a->getIssuer());
118 auto_ptr_char temp(a->getIssuer());
119 log.warn("no metadata found, can't establish identity of issuer (%s)", temp.get());
123 log.debug("matched message issuer against metadata, searching for applicable role...");
124 const RoleDescriptor* roledesc=entity->getRoleDescriptor(*policy.getRole(), protocol);
126 log.warn("unable to find compatible role (%s) in metadata", policy.getRole()->toString().c_str());
129 policy.setIssuerMetadata(roledesc);
134 log.warn("caught a bad_cast while examining message");