/*
- * 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.
/**
* 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 "saml1/binding/SAML1POSTDecoder.h"
+#include "binding/MessageDecoder.h"
+#include "saml1/core/Assertions.h"
+#include "saml1/core/Protocols.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/logging.h>
+#include <xmltooling/io/HTTPRequest.h>
#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::logging;
using namespace xmltooling;
-using namespace log4cpp;
using namespace std;
namespace opensaml {
namespace saml1p {
- MessageDecoder* SAML_DLLLOCAL SAML1POSTDecoderFactory(const DOMElement* const & e)
+ class SAML_DLLLOCAL SAML1POSTDecoder : public MessageDecoder
{
- return new SAML1POSTDecoder(e);
+ public:
+ SAML1POSTDecoder() {}
+ virtual ~SAML1POSTDecoder() {}
+
+ xmltooling::XMLObject* decode(
+ std::string& relayState,
+ const GenericRequest& genericRequest,
+ SecurityPolicy& policy
+ ) const;
+ };
+
+ MessageDecoder* SAML_DLLLOCAL SAML1POSTDecoderFactory(const pair<const DOMElement*,const XMLCh*>& p)
+ {
+ return new SAML1POSTDecoder();
}
};
};
-SAML1POSTDecoder::SAML1POSTDecoder(const DOMElement* e) {}
-
-SAML1POSTDecoder::~SAML1POSTDecoder() {}
-
-Response* SAML1POSTDecoder::decode(
+XMLObject* 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"))
- return NULL;
- const char* samlResponse = httpRequest.getParameter("SAMLResponse");
- const char* TARGET = httpRequest.getParameter("TARGET");
+ const HTTPRequest* httpRequest=dynamic_cast<const HTTPRequest*>(&genericRequest);
+ if (!httpRequest)
+ throw BindingException("Unable to cast request object to HTTPRequest type.");
+ if (strcmp(httpRequest->getMethod(),"POST"))
+ throw BindingException("Invalid HTTP method ($1).", params(1, httpRequest->getMethod()));
+ const char* samlResponse = httpRequest->getParameter("SAMLResponse");
+ const char* TARGET = httpRequest->getParameter("TARGET");
if (!samlResponse || !TARGET)
- return NULL;
+ throw BindingException("Request missing SAMLResponse or TARGET parameters.");
relayState = TARGET;
// Decode the base64 into SAML.
XMLString::release(&decoded);
// Parse and bind the document into an XMLObject.
- DOMDocument* doc = (m_validate ? XMLToolingConfig::getConfig().getValidatingParser()
+ DOMDocument* doc = (policy.getValidating() ? XMLToolingConfig::getConfig().getValidatingParser()
: XMLToolingConfig::getConfig().getParser()).parse(is);
XercesJanitor<DOMDocument> janitor(doc);
auto_ptr<XMLObject> xmlObject(XMLObjectBuilder::buildOneFromElement(doc->getDocumentElement(), true));
if (!response)
throw BindingException("Decoded message was not a SAML 1.x Response.");
- try {
- if (!m_validate)
- SchemaValidators.validate(xmlObject.get());
-
- // Check recipient URL.
- auto_ptr_char recipient(response->getRecipient());
- const char* recipient2 = httpRequest.getRequestURL();
- 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");
+ if (!policy.getValidating())
+ SchemaValidators.validate(xmlObject.get());
+
+ // Run through the policy.
+ policy.evaluate(*response, &genericRequest);
+
+ // Check recipient URL.
+ auto_ptr_char recipient(response->getRecipient());
+ const char* recipient2 = httpRequest->getRequestURL();
+ const char* delim = strchr(recipient2, '?');
+ if (!recipient.get() || !*(recipient.get())) {
+ log.error("response missing Recipient attribute");
+ throw BindingException("SAML response did not contain Recipient attribute identifying intended destination.");
}
- catch (XMLToolingException& ex) {
- // Check for an Issuer.
- 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
- }
- }
+ else if ((delim && strncmp(recipient.get(), recipient2, delim - recipient2)) || (!delim && strcmp(recipient.get(),recipient2))) {
+ log.error("POST targeted at (%s), but delivered to (%s)", recipient.get(), recipient2);
+ throw BindingException("SAML message delivered with POST to incorrect server URL.");
}
-
- xmlObject.release();
- return response;
+
+ return xmlObject.release();
}
projects / shibboleth / opensaml2.git / blobdiff