/**
* SAML1POSTDecoder.cpp
*
- * SAML 1.x POST binding/profile message encoder
+ * SAML 1.x POST binding/profile message decoder
*/
#include "internal.h"
#include "exceptions.h"
-#include "saml/binding/ReplayCache.h"
+#include "binding/HTTPRequest.h"
+#include "saml1/core/Assertions.h"
#include "saml1/binding/SAML1POSTDecoder.h"
#include "saml2/metadata/Metadata.h"
#include "saml2/metadata/MetadataProvider.h"
-#include "security/X509TrustEngine.h"
#include <log4cpp/Category.hh>
#include <xercesc/util/Base64.hpp>
#include <xmltooling/util/NDC.h>
+#include <xmltooling/validation/ValidatorSuite.h>
using namespace opensaml::saml2md;
using namespace opensaml::saml1p;
using namespace opensaml::saml1;
using namespace opensaml;
-using namespace xmlsignature;
using namespace xmltooling;
using namespace log4cpp;
using namespace std;
Response* SAML1POSTDecoder::decode(
string& relayState,
- const RoleDescriptor*& issuer,
- bool& issuerTrusted,
- const HTTPRequest& httpRequest,
- const MetadataProvider* metadataProvider,
- const QName* role,
- const X509TrustEngine* trustEngine
+ const GenericRequest& genericRequest,
+ SecurityPolicy& policy
) const
{
#ifdef _DEBUG
Category& log = Category::getInstance(SAML_LOGCAT".MessageDecoder.SAML1POST");
log.debug("validating input");
- if (strcmp(httpRequest.getMethod(),"POST"))
+ const HTTPRequest* httpRequest=dynamic_cast<const HTTPRequest*>(&genericRequest);
+ if (!httpRequest) {
+ log.error("unable to cast request to HTTPRequest type");
return NULL;
- const char* samlResponse = httpRequest.getParameter("SAMLResponse");
- const char* TARGET = httpRequest.getParameter("TARGET");
+ }
+ if (strcmp(httpRequest->getMethod(),"POST"))
+ return NULL;
+ const char* samlResponse = httpRequest->getParameter("SAMLResponse");
+ const char* TARGET = httpRequest->getParameter("TARGET");
if (!samlResponse || !TARGET)
return NULL;
relayState = TARGET;
// Check recipient URL.
auto_ptr_char recipient(response->getRecipient());
- const char* recipient2 = httpRequest.getRequestURL();
- if (!recipient2 || !*recipient2 || strcmp(recipient.get(),recipient2)) {
+ const char* recipient2 = httpRequest->getRequestURL();
+ if (!recipient.get() || !*(recipient.get())) {
+ log.error("response missing Recipient attribute");
+ throw BindingException("SAML response did not contain Recipient attribute identifying intended destination.");
+ }
+ else if (!recipient2 || !*recipient2 || strcmp(recipient.get(),recipient2)) {
log.error("POST targeted at (%s), but delivered to (%s)", recipient.get(), recipient2 ? recipient2 : "none");
throw BindingException("SAML message delivered with POST to incorrect server URL.");
}
- time_t now = time(NULL);
- if (response->getIssueInstant()->getEpoch() < now-(2*XMLToolingConfig::getConfig().clock_skew_secs))
- throw BindingException("Detected expired POST profile response.");
-
- ReplayCache* replayCache = SAMLConfig::getConfig().getReplayCache();
- if (replayCache) {
- auto_ptr_char id(response->getResponseID());
- if (!replayCache->check("SAML1POST", id.get(), response->getIssueInstant()->getEpoch() + (2*XMLToolingConfig::getConfig().clock_skew_secs)))
- throw BindingException("Rejecting replayed response ID ($1).", params(1,id.get()));
- }
- else
- log.warn("replay cache was not provided, this is a serious security risk!");
-
- issuer = NULL;
- issuerTrusted = false;
- log.debug("attempting to establish issuer and integrity of message...");
- const vector<Assertion*>& assertions=const_cast<const Response*>(response)->getAssertions();
- if (!assertions.empty()) {
- const EntityDescriptor* provider=
- metadataProvider ? metadataProvider->getEntityDescriptor(assertions.front()->getIssuer()) : NULL;
- if (provider) {
- pair<bool,int> minor = response->getMinorVersion();
- issuer=provider->getRoleDescriptor(
- *role,
- (minor.first && minor.second==0) ? SAMLConstants::SAML10_PROTOCOL_ENUM : SAMLConstants::SAML11_PROTOCOL_ENUM
- );
- if (issuer && trustEngine && response->getSignature()) {
- issuerTrusted = static_cast<const TrustEngine*>(trustEngine)->validate(
- *(response->getSignature()), *issuer, metadataProvider->getKeyResolver()
- );
- if (!issuerTrusted)
- log.error("signature on message could not be verified by supplied trust engine");
- }
- if (log.isDebugEnabled()) {
- auto_ptr_char iname(assertions.front()->getIssuer());
- log.debug("message from (%s), integrity %sverified", iname.get(), issuerTrusted ? "" : "NOT ");
- }
- }
- else
- log.warn("no metadata provider supplied, can't establish identity of issuer");
- }
- else
- log.warn("no assertions found, can't establish identity of issuer");
+ // Run through the policy.
+ policy.evaluate(genericRequest, *response);
}
catch (XMLToolingException& ex) {
+ // This is just to maximize the likelihood of attaching a source to the message for support purposes.
+ if (policy.getIssuerMetadata())
+ annotateException(&ex,policy.getIssuerMetadata()); // throws it
+
// Check for an Issuer.
+ const EntityDescriptor* provider=NULL;
const vector<Assertion*>& assertions=const_cast<const Response*>(response)->getAssertions();
- if (!assertions.empty()) {
- if (!metadataProvider) {
- // Just record it.
- auto_ptr_char issuer(assertions.front()->getIssuer());
- if (issuer.get())
- ex.addProperty("entityID", issuer.get());
- throw;
- }
- // Try and locate metadata for error handling.
- const EntityDescriptor* provider=metadataProvider->getEntityDescriptor(assertions.front()->getIssuer(),false);
- if (provider) {
- pair<bool,int> minor = response->getMinorVersion();
- const IDPSSODescriptor* role=provider->getIDPSSODescriptor(
- (minor.first && minor.second==0) ? SAMLConstants::SAML10_PROTOCOL_ENUM : SAMLConstants::SAML11_PROTOCOL_ENUM
- );
- if (role) annotateException(&ex,role); // throws it
- annotateException(&ex,provider); // throws it
- }
+ if (!assertions.empty() || !policy.getMetadataProvider() ||
+ !(provider=policy.getMetadataProvider()->getEntityDescriptor(assertions.front()->getIssuer(), false))) {
+ // Just record it.
+ auto_ptr_char iname(assertions.front()->getIssuer());
+ if (iname.get())
+ ex.addProperty("entityID", iname.get());
+ throw;
+ }
+ if (policy.getRole()) {
+ pair<bool,int> minor = response->getMinorVersion();
+ const RoleDescriptor* roledesc=provider->getRoleDescriptor(
+ *(policy.getRole()),
+ (minor.first && minor.second==0) ? samlconstants::SAML10_PROTOCOL_ENUM : samlconstants::SAML11_PROTOCOL_ENUM
+ );
+ if (roledesc) annotateException(&ex,roledesc); // throws it
}
+ annotateException(&ex,provider); // throws it
}
xmlObject.release();