#include "exceptions.h"
#include "binding/HTTPRequest.h"
#include "binding/SimpleSigningRule.h"
-#include "saml2/core/Protocols.h"
+#include "saml2/core/Assertions.h"
#include "saml2/metadata/Metadata.h"
#include "saml2/metadata/MetadataProvider.h"
#include <log4cpp/Category.hh>
-#include <xmltooling/util/NDC.h>
-#include <xmltooling/util/ReplayCache.h>
-#include <xsec/enc/XSECCryptoException.hpp>
-#include <xsec/enc/XSECCryptoProvider.hpp>
-#include <xsec/framework/XSECException.hpp>
using namespace opensaml::saml2md;
using namespace opensaml;
};
-pair<saml2::Issuer*,const RoleDescriptor*> SimpleSigningRule::evaluate(
- const XMLObject& message,
- const GenericRequest* request,
- const MetadataProvider* metadataProvider,
- const QName* role,
- const TrustEngine* trustEngine
- ) const
+void SimpleSigningRule::evaluate(const XMLObject& message, const GenericRequest* request, SecurityPolicy& policy) const
{
Category& log=Category::getInstance(SAML_LOGCAT".SecurityPolicyRule.SimpleSigning");
log.debug("evaluating simple 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;
+ }
+
const HTTPRequest* httpRequest = dynamic_cast<const HTTPRequest*>(request);
if (!request || !httpRequest) {
log.debug("ignoring message, no HTTP protocol request available");
- return ret;
+ return;
}
- if (!metadataProvider || !role || !trustEngine) {
- log.debug("ignoring message, no metadata supplied");
- return ret;
- }
-
const char* signature = request->getParameter("Signature");
if (!signature) {
log.debug("ignoring unsigned message");
- return ret;
+ return;
}
const char* sigAlgorithm = request->getParameter("SigAlg");
if (!sigAlgorithm) {
log.error("SigAlg parameter not found, no way to verify the signature");
- return ret;
+ return;
}
- try {
- log.debug("extracting issuer from message");
- pair<saml2::Issuer*,const XMLCh*> issuerInfo = 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;
- }
-
- string input;
- const char* pch;
- if (!strcmp(httpRequest->getMethod(), "GET")) {
- // We have to construct a string containing the signature input by accessing the
- // request directly. We can't use the decoded parameters because we need the raw
- // data and URL-encoding isn't canonical.
- pch = httpRequest->getQueryString();
- if (!appendParameter(input, pch, "SAMLRequest="))
- appendParameter(input, pch, "SAMLResponse=");
- appendParameter(input, pch, "RelayState=");
- appendParameter(input, pch, "SigAlg=");
- }
+ string input;
+ const char* pch;
+ if (!strcmp(httpRequest->getMethod(), "GET")) {
+ // We have to construct a string containing the signature input by accessing the
+ // request directly. We can't use the decoded parameters because we need the raw
+ // data and URL-encoding isn't canonical.
+ pch = httpRequest->getQueryString();
+ if (!appendParameter(input, pch, "SAMLRequest="))
+ appendParameter(input, pch, "SAMLResponse=");
+ appendParameter(input, pch, "RelayState=");
+ appendParameter(input, pch, "SigAlg=");
+ }
+ else {
+ // With POST, the input string is concatenated from the decoded form controls.
+ // GET should be this way too, but I messed up the spec, sorry.
+ pch = httpRequest->getParameter("SAMLRequest");
+ if (pch)
+ input = string("SAMLRequest=") + pch;
else {
- // With POST, the input string is concatenated from the decoded form controls.
- // GET should be this way too, but I messed up the spec, sorry.
- pch = httpRequest->getParameter("SAMLRequest");
- if (pch)
- input = string("SAMLRequest=") + pch;
- else {
- pch = httpRequest->getParameter("SAMLResponse");
- input = string("SAMLResponse=") + pch;
- }
- pch = httpRequest->getParameter("RelayState");
- if (pch)
- input = input + "&RelayState=" + pch;
- input = input + "&SigAlg=" + sigAlgorithm;
+ pch = httpRequest->getParameter("SAMLResponse");
+ input = string("SAMLResponse=") + pch;
}
+ pch = httpRequest->getParameter("RelayState");
+ if (pch)
+ input = input + "&RelayState=" + pch;
+ input = input + "&SigAlg=" + sigAlgorithm;
+ }
- // Check for KeyInfo, but defensively (we might be able to run without it).
- KeyInfo* keyInfo=NULL;
- pch = request->getParameter("KeyInfo");
- if (pch) {
- try {
- istringstream kstrm(pch);
- DOMDocument* doc = XMLToolingConfig::getConfig().getParser().parse(kstrm);
- XercesJanitor<DOMDocument> janitor(doc);
- XMLObject* kxml = XMLObjectBuilder::buildOneFromElement(doc->getDocumentElement(), true);
- janitor.release();
- if (!(keyInfo=dynamic_cast<KeyInfo*>(kxml)))
- delete kxml;
- }
- catch (XMLToolingException& ex) {
- log.warn("Failed to load KeyInfo from message: %s", ex.what());
- }
- }
-
- auto_ptr<KeyInfo> kjanitor(keyInfo);
- auto_ptr_XMLCh alg(sigAlgorithm);
-
- if (!trustEngine->validate(alg.get(), signature, keyInfo, input.c_str(), input.length(), *roledesc, metadataProvider->getKeyResolver())) {
- log.error("unable to verify signature on message with supplied trust engine");
- return ret;
+ // Check for KeyInfo, but defensively (we might be able to run without it).
+ KeyInfo* keyInfo=NULL;
+ pch = request->getParameter("KeyInfo");
+ if (pch) {
+ try {
+ istringstream kstrm(pch);
+ DOMDocument* doc = XMLToolingConfig::getConfig().getParser().parse(kstrm);
+ XercesJanitor<DOMDocument> janitor(doc);
+ XMLObject* kxml = XMLObjectBuilder::buildOneFromElement(doc->getDocumentElement(), true);
+ janitor.release();
+ if (!(keyInfo=dynamic_cast<KeyInfo*>(kxml)))
+ delete kxml;
}
-
- if (log.isDebugEnabled()) {
- auto_ptr_char iname(entity->getEntityID());
- log.debug("message from (%s), signature verified", iname.get());
+ catch (XMLToolingException& ex) {
+ log.warn("Failed to load KeyInfo from message: %s", ex.what());
}
-
- ret.first = issuer.release();
- ret.second = roledesc;
}
- catch (bad_cast&) {
- // Just trap it.
- log.warn("caught a bad_cast while extracting issuer");
+
+ auto_ptr<KeyInfo> kjanitor(keyInfo);
+ auto_ptr_XMLCh alg(sigAlgorithm);
+
+ if (!policy.getTrustEngine()->validate(
+ alg.get(), signature, keyInfo, input.c_str(), input.length(),
+ *(policy.getIssuerMetadata()), policy.getMetadataProvider()->getKeyResolver()
+ )) {
+ log.error("unable to verify message signature with supplied trust engine");
+ return;
}
- return ret;
-}
-
-pair<saml2::Issuer*,const XMLCh*> SimpleSigningRule::getIssuerAndProtocol(const XMLObject& message) const
-{
- // We just let any bad casts throw here.
- // Shortcuts some of the casting.
- const XMLCh* ns = message.getElementQName().getNamespaceURI();
- if (ns) {
- if (XMLString::equals(ns, samlconstants::SAML20P_NS)) {
- // 2.0 namespace should be castable to a specialized 2.0 root.
- const saml2::RootObject& root = dynamic_cast<const saml2::RootObject&>(message);
- saml2::Issuer* issuer = root.getIssuer();
- if (issuer && issuer->getName())
- return make_pair(issuer->cloneIssuer(), samlconstants::SAML20P_NS);
-
- // No issuer in the message, so we have to try the Response approach.
- const vector<saml2::Assertion*>& assertions = dynamic_cast<const saml2p::Response&>(message).getAssertions();
- if (!assertions.empty()) {
- issuer = assertions.front()->getIssuer();
- if (issuer && issuer->getName())
- return make_pair(issuer->cloneIssuer(), samlconstants::SAML20P_NS);
- }
- }
- }
- return pair<saml2::Issuer*,const XMLCh*>(NULL,NULL);
+ log.debug("signature verified against message issuer");
}
projects / shibboleth / cpp-opensaml.git / blobdiff