Change audience handling and validators to separate out entityID.
[shibboleth/cpp-sp.git] / shibsp / attribute / resolver / impl / QueryAttributeResolver.cpp
index c757647..2b36e99 100644 (file)
@@ -121,10 +121,10 @@ namespace shibsp {
             if (m_entity)
                 return m_entity;
             if (m_session && m_session->getEntityID()) {
-                m_metadata = m_app.getMetadataProvider();
+                m_metadata = m_app.getMetadataProvider(false);
                 if (m_metadata) {
                     m_metadata->lock();
-                    return m_entity = m_metadata->getEntityDescriptor(m_session->getEntityID());
+                    return m_entity = m_metadata->getEntityDescriptor(MetadataProvider::Criteria(m_session->getEntityID())).first;
                 }
             }
             return NULL;
@@ -203,7 +203,6 @@ namespace shibsp {
     private:
         bool SAML1Query(QueryContext& ctx) const;
         bool SAML2Query(QueryContext& ctx) const;
-        void signMessage(const Application& app, const RoleDescriptor& role, SignableObject& msg) const;
 
         Category& m_log;
         vector<AttributeDesignator*> m_SAML1Designators;
@@ -255,50 +254,6 @@ QueryResolver::QueryResolver(const DOMElement* e) : m_log(Category::getInstance(
     }
 }
 
-void QueryResolver::signMessage(const Application& application, const RoleDescriptor& role, SignableObject& msg) const
-{
-    const PropertySet* relyingParty = application.getRelyingParty(dynamic_cast<const EntityDescriptor*>(role.getParent()));
-    pair<bool,const char*> prop = relyingParty->getString("signing");
-    if (prop.first && (!strcmp(prop.second, "true") || !strcmp(prop.second, "back"))) {
-        CredentialResolver* credResolver=application.getCredentialResolver();
-        if (credResolver) {
-            Locker credLocker(credResolver);
-            // Fill in criteria to use.
-            MetadataCredentialCriteria mcc(role);
-            mcc.setUsage(CredentialCriteria::SIGNING_CREDENTIAL);
-            prop = relyingParty->getString("keyName");
-            if (prop.first)
-                mcc.getKeyNames().insert(prop.second);
-            pair<bool,const XMLCh*> sigalg = relyingParty->getXMLString("signingAlg");
-            if (sigalg.first)
-                mcc.setXMLAlgorithm(sigalg.second);
-            const Credential* cred = credResolver->resolve(&mcc);
-            if (cred) {
-                xmlsignature::Signature* sig = xmlsignature::SignatureBuilder::buildSignature();
-                msg.setSignature(sig);
-                if (sigalg.first)
-                    sig->setSignatureAlgorithm(sigalg.second);
-                sigalg = relyingParty->getXMLString("digestAlg");
-                if (sigalg.first) {
-                    ContentReference* cr = dynamic_cast<ContentReference*>(sig->getContentReference());
-                    if (cr)
-                        cr->setDigestAlgorithm(sigalg.second);
-                }
-        
-                // Sign response while marshalling.
-                vector<xmlsignature::Signature*> sigs(1,sig);
-                msg.marshall((DOMDocument*)NULL,&sigs,cred);
-            }
-            else {
-                m_log.warn("no signing credential resolved, leaving query unsigned");
-            }
-        }
-        else {
-            m_log.warn("no credential resolver installed, leaving query unsigned");
-        }
-    }
-}
-
 bool QueryResolver::SAML1Query(QueryContext& ctx) const
 {
 #ifdef _DEBUG
@@ -306,18 +261,18 @@ bool QueryResolver::SAML1Query(QueryContext& ctx) const
 #endif
 
     int version = XMLString::equals(ctx.getProtocol(), samlconstants::SAML11_PROTOCOL_ENUM) ? 1 : 0;
-    const AttributeAuthorityDescriptor* AA = ctx.getEntityDescriptor()->getAttributeAuthorityDescriptor(ctx.getProtocol());
+    const AttributeAuthorityDescriptor* AA =
+        find_if(ctx.getEntityDescriptor()->getAttributeAuthorityDescriptors(), isValidForProtocol(ctx.getProtocol()));
     if (!AA) {
         m_log.warn("no SAML 1.%d AttributeAuthority role found in metadata", version);
         return false;
     }
 
-    shibsp::SecurityPolicy policy(ctx.getApplication());
+    const Application& application = ctx.getApplication();
+    const PropertySet* relyingParty = application.getRelyingParty(ctx.getEntityDescriptor());
+    shibsp::SecurityPolicy policy(application);
     MetadataCredentialCriteria mcc(*AA);
     shibsp::SOAPClient soaper(policy);
-    const PropertySet* policySettings =
-        ctx.getApplication().getServiceProvider().getPolicySettings(ctx.getApplication().getString("policyId").second);
-    pair<bool,bool> signedAssertions = policySettings->getBool("signedAssertions");
 
     auto_ptr_XMLCh binding(samlconstants::SAML1_BINDING_SOAP);
     saml1p::Response* response=NULL;
@@ -327,7 +282,6 @@ bool QueryResolver::SAML1Query(QueryContext& ctx) const
             if (!XMLString::equals((*ep)->getBinding(),binding.get()))
                 continue;
             auto_ptr_char loc((*ep)->getLocation());
-            auto_ptr_XMLCh issuer(ctx.getApplication().getString("entityID").second);
             NameIdentifier* nameid = NameIdentifierBuilder::buildNameIdentifier();
             nameid->setName(ctx.getNameID()->getName());
             nameid->setFormat(ctx.getNameID()->getFormat());
@@ -336,16 +290,15 @@ bool QueryResolver::SAML1Query(QueryContext& ctx) const
             subject->setNameIdentifier(nameid);
             saml1p::AttributeQuery* query = saml1p::AttributeQueryBuilder::buildAttributeQuery();
             query->setSubject(subject);
-            query->setResource(issuer.get());
+            query->setResource(relyingParty->getXMLString("entityID").second);
             for (vector<AttributeDesignator*>::const_iterator ad = m_SAML1Designators.begin(); ad!=m_SAML1Designators.end(); ++ad)
                 query->getAttributeDesignators().push_back((*ad)->cloneAttributeDesignator());
             Request* request = RequestBuilder::buildRequest();
             request->setAttributeQuery(query);
             request->setMinorVersion(version);
-            signMessage(ctx.getApplication(), *AA, *request);
 
             SAML1SOAPClient client(soaper, false);
-            client.sendSAML(request, mcc, loc.get());
+            client.sendSAML(request, application.getId(), mcc, loc.get());
             response = client.receiveSAML();
         }
         catch (exception& ex) {
@@ -377,16 +330,27 @@ bool QueryResolver::SAML1Query(QueryContext& ctx) const
     auto_ptr<saml1p::Response> wrapper(response);
     saml1::Assertion* newtoken = assertions.front();
 
+    pair<bool,bool> signedAssertions = relyingParty->getBool("signedAssertions");
     if (!newtoken->getSignature() && signedAssertions.first && signedAssertions.second) {
         m_log.error("assertion unsigned, rejecting it based on signedAssertions policy");
         return true;
     }
 
     try {
+        // We're going to insist that the assertion issuer is the same as the peer.
+        // Reset the policy's message bits and extract them from the assertion.
+        policy.reset(true);
+        policy.setMessageID(newtoken->getAssertionID());
+        policy.setIssueInstant(newtoken->getIssueInstantEpoch());
+        policy.setIssuer(newtoken->getIssuer());
         policy.evaluate(*newtoken);
-        if (!policy.isSecure())
+
+        // Now we can check the security status of the policy.
+        if (!policy.isAuthenticated())
             throw SecurityPolicyException("Security of SAML 1.x query result not established.");
-        saml1::AssertionValidator tokval(ctx.getApplication().getAudiences(), time(NULL));
+
+        // Lastly, check it over.
+        saml1::AssertionValidator tokval(relyingParty->getXMLString("entityID").second, application.getAudiences(), time(NULL));
         tokval.validateAssertion(*newtoken);
     }
     catch (exception& ex) {
@@ -400,15 +364,15 @@ bool QueryResolver::SAML1Query(QueryContext& ctx) const
 
     // Finally, extract and filter the result.
     try {
-        AttributeExtractor* extractor = ctx.getApplication().getAttributeExtractor();
+        AttributeExtractor* extractor = application.getAttributeExtractor();
         if (extractor) {
             Locker extlocker(extractor);
-            extractor->extractAttributes(ctx.getApplication(), AA, *newtoken, ctx.getResolvedAttributes());
+            extractor->extractAttributes(application, AA, *newtoken, ctx.getResolvedAttributes());
         }
 
-        AttributeFilter* filter = ctx.getApplication().getAttributeFilter();
+        AttributeFilter* filter = application.getAttributeFilter();
         if (filter) {
-            BasicFilteringContext fc(ctx.getApplication(), ctx.getResolvedAttributes(), AA, ctx.getClassRef(), ctx.getDeclRef());
+            BasicFilteringContext fc(application, ctx.getResolvedAttributes(), AA, ctx.getClassRef(), ctx.getDeclRef());
             Locker filtlocker(filter);
             filter->filterAttributes(fc, ctx.getResolvedAttributes());
         }
@@ -428,20 +392,20 @@ bool QueryResolver::SAML2Query(QueryContext& ctx) const
     xmltooling::NDC ndc("query");
 #endif
 
-    const AttributeAuthorityDescriptor* AA = ctx.getEntityDescriptor()->getAttributeAuthorityDescriptor(samlconstants::SAML20P_NS);
+    const AttributeAuthorityDescriptor* AA =
+        find_if(ctx.getEntityDescriptor()->getAttributeAuthorityDescriptors(), isValidForProtocol(samlconstants::SAML20P_NS));
     if (!AA) {
         m_log.warn("no SAML 2 AttributeAuthority role found in metadata");
         return false;
     }
 
-    shibsp::SecurityPolicy policy(ctx.getApplication());
+    const Application& application = ctx.getApplication();
+    shibsp::SecurityPolicy policy(application);
     MetadataCredentialCriteria mcc(*AA);
     shibsp::SOAPClient soaper(policy);
-    const PropertySet* policySettings =
-        ctx.getApplication().getServiceProvider().getPolicySettings(ctx.getApplication().getString("policyId").second);
-    pair<bool,bool> signedAssertions = policySettings->getBool("signedAssertions");
 
-    const PropertySet* relyingParty = ctx.getApplication().getRelyingParty(ctx.getEntityDescriptor());
+    const PropertySet* relyingParty = application.getRelyingParty(ctx.getEntityDescriptor());
+    pair<bool,bool> signedAssertions = relyingParty->getBool("signedAssertions");
     pair<bool,const char*> encryption = relyingParty->getString("encryption");
 
     auto_ptr_XMLCh binding(samlconstants::SAML20_BINDING_SOAP);
@@ -452,8 +416,6 @@ bool QueryResolver::SAML2Query(QueryContext& ctx) const
             if (!XMLString::equals((*ep)->getBinding(),binding.get()))
                 continue;
             auto_ptr_char loc((*ep)->getLocation());
-            auto_ptr_XMLCh issuer(ctx.getApplication().getString("entityID").second);
-
             auto_ptr<saml2::Subject> subject(saml2::SubjectBuilder::buildSubject());
 
             // Encrypt the NameID?
@@ -462,7 +424,7 @@ bool QueryResolver::SAML2Query(QueryContext& ctx) const
                 MetadataCredentialCriteria mcc(*AA);
                 encrypted->encrypt(
                     *ctx.getNameID(),
-                    *(ctx.getApplication().getMetadataProvider()),
+                    *(application.getMetadataProvider()),
                     mcc,
                     false,
                     relyingParty->getXMLString("encryptionAlg").second
@@ -476,14 +438,13 @@ bool QueryResolver::SAML2Query(QueryContext& ctx) const
             saml2p::AttributeQuery* query = saml2p::AttributeQueryBuilder::buildAttributeQuery();
             query->setSubject(subject.release());
             Issuer* iss = IssuerBuilder::buildIssuer();
-            iss->setName(issuer.get());
+            iss->setName(relyingParty->getXMLString("entityID").second);
             query->setIssuer(iss);
             for (vector<saml2::Attribute*>::const_iterator ad = m_SAML2Designators.begin(); ad!=m_SAML2Designators.end(); ++ad)
                 query->getAttributes().push_back((*ad)->cloneAttribute());
-            signMessage(ctx.getApplication(), *AA, *query);
 
             SAML2SOAPClient client(soaper, false);
-            client.sendSAML(query, mcc, loc.get());
+            client.sendSAML(query, application.getId(), mcc, loc.get());
             srt = client.receiveSAML();
         }
         catch (exception& ex) {
@@ -527,10 +488,20 @@ bool QueryResolver::SAML2Query(QueryContext& ctx) const
     }
 
     try {
+        // We're going to insist that the assertion issuer is the same as the peer.
+        // Reset the policy's message bits and extract them from the assertion.
+        policy.reset(true);
+        policy.setMessageID(newtoken->getID());
+        policy.setIssueInstant(newtoken->getIssueInstantEpoch());
+        policy.setIssuer(newtoken->getIssuer());
         policy.evaluate(*newtoken);
-        if (!policy.isSecure())
+
+        // Now we can check the security status of the policy.
+        if (!policy.isAuthenticated())
             throw SecurityPolicyException("Security of SAML 2.0 query result not established.");
-        saml2::AssertionValidator tokval(ctx.getApplication().getAudiences(), time(NULL));
+
+        // Lastly, check it over.
+        saml2::AssertionValidator tokval(relyingParty->getXMLString("entityID").second, application.getAudiences(), time(NULL));
         tokval.validateAssertion(*newtoken);
     }
     catch (exception& ex) {
@@ -544,15 +515,15 @@ bool QueryResolver::SAML2Query(QueryContext& ctx) const
 
     // Finally, extract and filter the result.
     try {
-        AttributeExtractor* extractor = ctx.getApplication().getAttributeExtractor();
+        AttributeExtractor* extractor = application.getAttributeExtractor();
         if (extractor) {
             Locker extlocker(extractor);
-            extractor->extractAttributes(ctx.getApplication(), AA, *newtoken, ctx.getResolvedAttributes());
+            extractor->extractAttributes(application, AA, *newtoken, ctx.getResolvedAttributes());
         }
 
-        AttributeFilter* filter = ctx.getApplication().getAttributeFilter();
+        AttributeFilter* filter = application.getAttributeFilter();
         if (filter) {
-            BasicFilteringContext fc(ctx.getApplication(), ctx.getResolvedAttributes(), AA, ctx.getClassRef(), ctx.getDeclRef());
+            BasicFilteringContext fc(application, ctx.getResolvedAttributes(), AA, ctx.getClassRef(), ctx.getDeclRef());
             Locker filtlocker(filter);
             filter->filterAttributes(fc, ctx.getResolvedAttributes());
         }