saml/binding/impl/SecurityPolicy.cpp

   1 /*
   2  *  Copyright 2001-2007 Internet2
   3  *
   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
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  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.
  15  */
  16
  17 /**
  18  * SecurityPolicy.cpp
  19  *
  20  * Overall policy used to verify the security of an incoming message.
  21  */
  22
  23 #include "internal.h"
  24 #include "exceptions.h"
  25 #include "binding/SecurityPolicyRule.h"
  26 #include "saml2/core/Assertions.h"
  27
  28 using namespace opensaml::saml2md;
  29 using namespace opensaml::saml2;
  30 using namespace opensaml;
  31 using namespace xmltooling;
  32 using namespace std;
  33
  34 namespace opensaml {
  35     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,const DOMElement*>::Factory ClientCertAuthRuleFactory;
  36     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,const DOMElement*>::Factory MessageFlowRuleFactory;
  37     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,const DOMElement*>::Factory SAML1MessageRuleFactory;
  38     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,const DOMElement*>::Factory SAML2MessageRuleFactory;
  39     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,const DOMElement*>::Factory SimpleSigningRuleFactory;
  40     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,const DOMElement*>::Factory XMLSigningRuleFactory;
  41 };
  42
  43 void SAML_API opensaml::registerSecurityPolicyRules()
  44 {
  45     SAMLConfig& conf=SAMLConfig::getConfig();
  46     conf.SecurityPolicyRuleManager.registerFactory(CLIENTCERTAUTH_POLICY_RULE, ClientCertAuthRuleFactory);
  47     conf.SecurityPolicyRuleManager.registerFactory(MESSAGEFLOW_POLICY_RULE, MessageFlowRuleFactory);
  48     conf.SecurityPolicyRuleManager.registerFactory(SAML1MESSAGE_POLICY_RULE, SAML1MessageRuleFactory);
  49     conf.SecurityPolicyRuleManager.registerFactory(SAML2MESSAGE_POLICY_RULE, SAML2MessageRuleFactory);
  50     conf.SecurityPolicyRuleManager.registerFactory(SIMPLESIGNING_POLICY_RULE, SimpleSigningRuleFactory);
  51     conf.SecurityPolicyRuleManager.registerFactory(XMLSIGNING_POLICY_RULE, XMLSigningRuleFactory);
  52 }
  53
  54 SecurityPolicy::IssuerMatchingPolicy SecurityPolicy::m_defaultMatching;
  55
  56 SecurityPolicy::~SecurityPolicy()
  57 {
  58     reset();
  59 }
  60
  61 void SecurityPolicy::reset()
  62 {
  63     delete m_messageQName;
  64     XMLString::release(&m_messageID);
  65     delete m_issuer;
  66     m_messageQName=NULL;
  67     m_messageID=NULL;
  68     m_issueInstant=0;
  69     m_issuer=NULL;
  70     m_issuerRole=NULL;
  71     m_secure=false;
  72 }
  73
  74 void SecurityPolicy::evaluate(const XMLObject& message, const GenericRequest* request)
  75 {
  76     for (vector<const SecurityPolicyRule*>::const_iterator i=m_rules.begin(); i!=m_rules.end(); ++i)
  77         (*i)->evaluate(message,request,*this);
  78 }
  79
  80 void SecurityPolicy::setIssuer(saml2::Issuer* issuer)
  81 {
  82     if (!getIssuerMatchingPolicy().issuerMatches(issuer, m_issuer)) {
  83         delete issuer;
  84         throw BindingException("A rule supplied an Issuer that conflicts with previous results.");
  85     }
  86
  87     delete m_issuer;
  88     m_issuer=issuer;
  89 }
  90
  91 void SecurityPolicy::setIssuerMetadata(const RoleDescriptor* issuerRole)
  92 {
  93     if (issuerRole && m_issuerRole && issuerRole!=m_issuerRole)
  94         throw BindingException("A rule supplied a RoleDescriptor that conflicts with previous results.");
  95     m_issuerRole=issuerRole;
  96 }
  97
  98 bool SecurityPolicy::IssuerMatchingPolicy::issuerMatches(const Issuer* issuer1, const Issuer* issuer2) const
  99 {
 100     // NULL matches anything for the purposes of this interface.
 101     if (!issuer1 || !issuer2)
 102         return true;
 103
 104     const XMLCh* op1=issuer1->getName();
 105     const XMLCh* op2=issuer2->getName();
 106     if (!op1 || !op2 || !XMLString::equals(op1,op2))
 107         return false;
 108
 109     op1=issuer1->getFormat();
 110     op2=issuer2->getFormat();
 111     if (!XMLString::equals(op1 ? op1 : NameIDType::ENTITY, op2 ? op2 : NameIDType::ENTITY))
 112         return false;
 113
 114     op1=issuer1->getNameQualifier();
 115     op2=issuer2->getNameQualifier();
 116     if (!XMLString::equals(op1 ? op1 : &chNull, op2 ? op2 : &chNull))
 117         return false;
 118
 119     op1=issuer1->getSPNameQualifier();
 120     op2=issuer2->getSPNameQualifier();
 121     if (!XMLString::equals(op1 ? op1 : &chNull, op2 ? op2 : &chNull))
 122         return false;
 123
 124     return true;
 125 }