Update copyright.

[shibboleth/cpp-opensaml.git] / saml / binding / impl / XMLSigningRule.cpp

diff --git a/saml/binding/impl/XMLSigningRule.cpp b/saml/binding/impl/XMLSigningRule.cpp
index 552cef8..697c49a 100644 (file)
--- a/saml/binding/impl/XMLSigningRule.cpp
+++ b/saml/binding/impl/XMLSigningRule.cpp
@@ -1,5 +1,5 @@
 /*
- *  Copyright 2001-2006 Internet2
+ *  Copyright 2001-2007 Internet2
  * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,10 +26,8 @@
 #include "saml2/core/Assertions.h"
 #include "saml2/metadata/Metadata.h"
 #include "saml2/metadata/MetadataProvider.h"
-#include "security/TrustEngine.h"
+#include "signature/SignatureProfileValidator.h"
 
-#include <xmltooling/util/NDC.h>
-#include <xmltooling/util/ReplayCache.h>
 #include <log4cpp/Category.hh>
 
 using namespace opensaml::saml2md;
@@ -45,73 +43,43 @@ namespace opensaml {
     }
 };
 
-pair<saml2::Issuer*,const RoleDescriptor*> XMLSigningRule::evaluate(
-    const GenericRequest& request,
-    const XMLObject& message,
-    const MetadataProvider* metadataProvider,
-    const QName* role,
-    const opensaml::TrustEngine* trustEngine,
-    const MessageExtractor& extractor
-    ) const
+void XMLSigningRule::evaluate(const XMLObject& message, const GenericRequest* request, SecurityPolicy& policy) const
 {
     Category& log=Category::getInstance(SAML_LOGCAT".SecurityPolicyRule.XMLSigning");
     log.debug("evaluating message signing policy");
     
-    pair<saml2::Issuer*,const RoleDescriptor*> ret = pair<saml2::Issuer*,const RoleDescriptor*>(NULL,NULL);  
+    if (!policy.getIssuerMetadata()) {
+        log.debug("ignoring message, no issuer metadata supplied");
+        return;
+    }
+    else if (!policy.getTrustEngine()) {
+        log.debug("ignoring message, no TrustEngine supplied");
+        return;
+    }
     
-    if (!metadataProvider || !role || !trustEngine) {
-        log.debug("ignoring message, no metadata or trust information supplied");
-        return ret;
+    const SignableObject* signable = dynamic_cast<const SignableObject*>(&message);
+    if (!signable || !signable->getSignature()) {
+        log.debug("ignoring unsigned or unrecognized message");
+        return;
     }
     
+    log.debug("validating signature profile");
     try {
-        const RootObject& root = dynamic_cast<const RootObject&>(message);
-        if (!root.getSignature()) {
-            log.debug("ignoring unsigned message");
-            return ret;
-        }
-        
-        log.debug("extracting issuer from message");
-        pair<saml2::Issuer*,const XMLCh*> issuerInfo = extractor.getIssuerAndProtocol(message);
-        
-        auto_ptr<saml2::Issuer> issuer(issuerInfo.first);
-        if (!issuerInfo.first || !issuerInfo.second ||
-                (issuer->getFormat() && !XMLString::equals(issuer->getFormat(), saml2::NameIDType::ENTITY))) {
-            log.warn("issuer identity not estabished, or was not an entityID");
-            return ret;
-        }
-        
-        log.debug("searching metadata for message issuer...");
-        const EntityDescriptor* entity = metadataProvider->getEntityDescriptor(issuer->getName());
-        if (!entity) {
-            auto_ptr_char temp(issuer->getName());
-            log.warn("no metadata found, can't establish identity of issuer (%s)", temp.get());
-            return ret;
-        }
-
-        log.debug("matched message issuer against metadata, searching for applicable role...");
-        const RoleDescriptor* roledesc=entity->getRoleDescriptor(*role, issuerInfo.second);
-        if (!roledesc) {
-            log.warn("unable to find compatible role (%s) in metadata", role->toString().c_str());
-            return ret;
-        }
-
-        if (!trustEngine->validate(*(root.getSignature()), *roledesc, metadataProvider->getKeyResolver())) {
-            log.error("unable to verify signature on message with supplied trust engine");
-            return ret;
-        }
-
-        if (log.isDebugEnabled()) {
-            auto_ptr_char iname(entity->getEntityID());
-            log.debug("message from (%s), signature verified", iname.get());
-        }
-        
-        ret.first = issuer.release();
-        ret.second = roledesc;
+        SignatureProfileValidator sigval;
+        sigval.validate(signable->getSignature());
+    }
+    catch (ValidationException& ve) {
+        log.error("signature profile failed to validate: %s", ve.what());
+        return;
     }
-    catch (bad_cast&) {
-        // Just trap it.
-        log.warn("caught a bad_cast while extracting issuer");
+    
+    if (!policy.getTrustEngine()->validate(
+            *(signable->getSignature()), *(policy.getIssuerMetadata()), policy.getMetadataProvider()->getKeyResolver()
+            )) {
+        log.error("unable to verify message signature with supplied trust engine");
+        return;
     }
-    return ret;
+
+    log.debug("signature verified against message issuer");
+    policy.setSecure(true);
 }