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,string,const DOMElement*>::Factory ClientCertAuthRuleFactory;
  36     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,string,const DOMElement*>::Factory MessageFlowRuleFactory;
  37     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,string,const DOMElement*>::Factory NullSecurityRuleFactory;
  38     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,string,const DOMElement*>::Factory SAML1MessageRuleFactory;
  39     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,string,const DOMElement*>::Factory SAML2MessageRuleFactory;
  40     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,string,const DOMElement*>::Factory SimpleSigningRuleFactory;
  41     SAML_DLLLOCAL PluginManager<SecurityPolicyRule,string,const DOMElement*>::Factory XMLSigningRuleFactory;
  42 };
  43
  44 void SAML_API opensaml::registerSecurityPolicyRules()
  45 {
  46     SAMLConfig& conf=SAMLConfig::getConfig();
  47     conf.SecurityPolicyRuleManager.registerFactory(CLIENTCERTAUTH_POLICY_RULE, ClientCertAuthRuleFactory);
  48     conf.SecurityPolicyRuleManager.registerFactory(MESSAGEFLOW_POLICY_RULE, MessageFlowRuleFactory);
  49     conf.SecurityPolicyRuleManager.registerFactory(NULLSECURITY_POLICY_RULE, NullSecurityRuleFactory);
  50     conf.SecurityPolicyRuleManager.registerFactory(SAML1MESSAGE_POLICY_RULE, SAML1MessageRuleFactory);
  51     conf.SecurityPolicyRuleManager.registerFactory(SAML2MESSAGE_POLICY_RULE, SAML2MessageRuleFactory);
  52     conf.SecurityPolicyRuleManager.registerFactory(SIMPLESIGNING_POLICY_RULE, SimpleSigningRuleFactory);
  53     conf.SecurityPolicyRuleManager.registerFactory(XMLSIGNING_POLICY_RULE, XMLSigningRuleFactory);
  54 }
  55
  56 SecurityPolicy::IssuerMatchingPolicy SecurityPolicy::m_defaultMatching;
  57
  58 SecurityPolicy::~SecurityPolicy()
  59 {
  60     reset();
  61 }
  62
  63 void SecurityPolicy::reset()
  64 {
  65     delete m_messageQName;
  66     XMLString::release(&m_messageID);
  67     delete m_issuer;
  68     m_messageQName=NULL;
  69     m_messageID=NULL;
  70     m_issueInstant=0;
  71     m_issuer=NULL;
  72     m_issuerRole=NULL;
  73     m_secure=false;
  74 }
  75
  76 void SecurityPolicy::evaluate(const XMLObject& message, const GenericRequest* request)
  77 {
  78     for (vector<const SecurityPolicyRule*>::const_iterator i=m_rules.begin(); i!=m_rules.end(); ++i)
  79         (*i)->evaluate(message,request,*this);
  80 }
  81
  82 void SecurityPolicy::setIssuer(const Issuer* issuer)
  83 {
  84     if (!getIssuerMatchingPolicy().issuerMatches(m_issuer, issuer))
  85         throw SecurityPolicyException("A rule supplied an Issuer that conflicts with previous results.");
  86
  87     if (!m_issuer) {
  88         m_issuerRole = NULL;
  89         m_issuer=issuer->cloneIssuer();
  90     }
  91 }
  92
  93 void SecurityPolicy::setIssuer(const XMLCh* issuer)
  94 {
  95     if (!getIssuerMatchingPolicy().issuerMatches(m_issuer, issuer))
  96         throw SecurityPolicyException("A rule supplied an Issuer that conflicts with previous results.");
  97
  98     if (!m_issuer && issuer && *issuer) {
  99         m_issuerRole = NULL;
 100         m_issuer = IssuerBuilder::buildIssuer();
 101         m_issuer->setName(issuer);
 102     }
 103 }
 104
 105 void SecurityPolicy::setIssuerMetadata(const RoleDescriptor* issuerRole)
 106 {
 107     if (issuerRole && m_issuerRole && issuerRole!=m_issuerRole)
 108         throw SecurityPolicyException("A rule supplied a RoleDescriptor that conflicts with previous results.");
 109     m_issuerRole=issuerRole;
 110 }
 111
 112 bool SecurityPolicy::IssuerMatchingPolicy::issuerMatches(const Issuer* issuer1, const Issuer* issuer2) const
 113 {
 114     // NULL matches anything for the purposes of this interface.
 115     if (!issuer1 || !issuer2)
 116         return true;
 117
 118     const XMLCh* op1=issuer1->getName();
 119     const XMLCh* op2=issuer2->getName();
 120     if (!op1 || !op2 || !XMLString::equals(op1,op2))
 121         return false;
 122
 123     op1=issuer1->getFormat();
 124     op2=issuer2->getFormat();
 125     if (!XMLString::equals(op1 ? op1 : NameIDType::ENTITY, op2 ? op2 : NameIDType::ENTITY))
 126         return false;
 127
 128     op1=issuer1->getNameQualifier();
 129     op2=issuer2->getNameQualifier();
 130     if (!XMLString::equals(op1 ? op1 : &chNull, op2 ? op2 : &chNull))
 131         return false;
 132
 133     op1=issuer1->getSPNameQualifier();
 134     op2=issuer2->getSPNameQualifier();
 135     if (!XMLString::equals(op1 ? op1 : &chNull, op2 ? op2 : &chNull))
 136         return false;
 137
 138     return true;
 139 }
 140
 141 bool SecurityPolicy::IssuerMatchingPolicy::issuerMatches(const Issuer* issuer1, const XMLCh* issuer2) const
 142 {
 143     // NULL matches anything for the purposes of this interface.
 144     if (!issuer1 || !issuer2 || !*issuer2)
 145         return true;
 146
 147     const XMLCh* op1=issuer1->getName();
 148     if (!op1 || !XMLString::equals(op1,issuer2))
 149         return false;
 150
 151     op1=issuer1->getFormat();
 152     if (op1 && *op1 && !XMLString::equals(op1, NameIDType::ENTITY))
 153         return false;
 154
 155     op1=issuer1->getNameQualifier();
 156     if (op1 && *op1)
 157         return false;
 158
 159     op1=issuer1->getSPNameQualifier();
 160     if (op1 && *op1)
 161         return false;
 162
 163     return true;
 164 }