-/*
- * 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.
- * You may obtain a copy of the License at
+/**
+ * Licensed to the University Corporation for Advanced Internet
+ * Development, Inc. (UCAID) under one or more contributor license
+ * agreements. See the NOTICE file distributed with this work for
+ * additional information regarding copyright ownership.
+ *
+ * UCAID licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the
+ * License at
*
- * http://www.apache.org/licenses/LICENSE-2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
*
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
*/
/**
* SAML1Consumer.cpp
- *
- * SAML 1.x assertion consumer service
+ *
+ * SAML 1.x assertion consumer service.
*/
#include "internal.h"
-#include "Application.h"
-#include "exceptions.h"
-#include "ServiceProvider.h"
-#include "SessionCache.h"
-#include "attribute/Attribute.h"
-#include "attribute/filtering/AttributeFilter.h"
-#include "attribute/filtering/BasicFilteringContext.h"
-#include "attribute/resolver/AttributeExtractor.h"
-#include "attribute/resolver/ResolutionContext.h"
#include "handler/AssertionConsumerService.h"
-#include <saml/saml1/core/Assertions.h>
-#include <saml/saml1/core/Protocols.h>
-#include <saml/saml1/profile/BrowserSSOProfileValidator.h>
-#include <saml/saml2/metadata/Metadata.h>
-
-using namespace shibsp;
+#ifndef SHIBSP_LITE
+# include "Application.h"
+# include "ServiceProvider.h"
+# include "SessionCache.h"
+# include "TransactionLog.h"
+# include "attribute/resolver/ResolutionContext.h"
+# include <boost/iterator/indirect_iterator.hpp>
+# include <saml/exceptions.h>
+# include <saml/SAMLConfig.h>
+# include <saml/binding/SecurityPolicy.h>
+# include <saml/binding/SecurityPolicyRule.h>
+# include <saml/saml1/core/Assertions.h>
+# include <saml/saml1/core/Protocols.h>
+# include <saml/saml2/metadata/Metadata.h>
+# include <xmltooling/XMLToolingConfig.h>
+# include <xmltooling/io/HTTPRequest.h>
+# include <xmltooling/util/DateTime.h>
using namespace opensaml::saml1;
using namespace opensaml::saml1p;
using namespace opensaml;
-using namespace xmltooling;
-using namespace log4cpp;
-using namespace std;
+using namespace boost;
using saml2::NameID;
using saml2::NameIDBuilder;
using saml2md::EntityDescriptor;
+using saml2md::SPSSODescriptor;
+using saml2md::MetadataException;
+#else
+# include "lite/SAMLConstants.h"
+#endif
+
+using namespace shibsp;
+using namespace xmltooling;
+using namespace std;
namespace shibsp {
#pragma warning( push )
#pragma warning( disable : 4250 )
#endif
-
+
class SHIBSP_DLLLOCAL SAML1Consumer : public AssertionConsumerService
{
public:
SAML1Consumer(const DOMElement* e, const char* appId)
- : AssertionConsumerService(e, appId, Category::getInstance(SHIBSP_LOGCAT".SAML1")) {
+ : AssertionConsumerService(e, appId, Category::getInstance(SHIBSP_LOGCAT ".SSO.SAML1")) {
+#ifndef SHIBSP_LITE
m_post = XMLString::equals(getString("Binding").second, samlconstants::SAML1_PROFILE_BROWSER_POST);
+ if (SPConfig::getConfig().isEnabled(SPConfig::OutOfProcess))
+ m_ssoRule.reset(SAMLConfig::getConfig().SecurityPolicyRuleManager.newPlugin(SAML1BROWSERSSO_POLICY_RULE, e));
+#endif
}
virtual ~SAML1Consumer() {}
-
+
+#ifndef SHIBSP_LITE
+ void generateMetadata(SPSSODescriptor& role, const char* handlerURL) const {
+ AssertionConsumerService::generateMetadata(role, handlerURL);
+ role.addSupport(samlconstants::SAML11_PROTOCOL_ENUM);
+ role.addSupport(samlconstants::SAML10_PROTOCOL_ENUM);
+ }
+
private:
- string implementProtocol(
+ void implementProtocol(
const Application& application,
const HTTPRequest& httpRequest,
+ HTTPResponse& httpResponse,
SecurityPolicy& policy,
- const PropertySet* settings,
+ const PropertySet*,
const XMLObject& xmlObject
) const;
bool m_post;
+ scoped_ptr<SecurityPolicyRule> m_ssoRule;
+#else
+ const XMLCh* getProtocolFamily() const {
+ return samlconstants::SAML11_PROTOCOL_ENUM;
+ }
+#endif
};
#if defined (_MSC_VER)
{
return new SAML1Consumer(p.first, p.second);
}
-
+
+#ifndef SHIBSP_LITE
+ class SHIBSP_DLLLOCAL _rulenamed : std::unary_function<const SecurityPolicyRule*,bool>
+ {
+ public:
+ _rulenamed(const char* name) : m_name(name) {}
+ bool operator()(const SecurityPolicyRule* rule) const {
+ return rule ? !strcmp(m_name, rule->getType()) : false;
+ }
+ private:
+ const char* m_name;
+ };
+#endif
};
-string SAML1Consumer::implementProtocol(
+#ifndef SHIBSP_LITE
+
+void SAML1Consumer::implementProtocol(
const Application& application,
const HTTPRequest& httpRequest,
+ HTTPResponse& httpResponse,
SecurityPolicy& policy,
- const PropertySet* settings,
+ const PropertySet*,
const XMLObject& xmlObject
) const
{
// Implementation of SAML 1.x SSO profile(s).
m_log.debug("processing message against SAML 1.x SSO profile");
+ // Check for errors...this will throw if it's not a successful message.
+ checkError(&xmlObject, policy.getIssuerMetadata());
+
// With the binding aspects now moved out to the MessageDecoder,
// the focus here is on the assertion content. For SAML 1.x POST,
// all the security comes from the protocol layer, and signing
// the assertion isn't sufficient. So we can check the policy
- // object now and bail if it's not a secure message.
- if (m_post && !policy.isSecure())
+ // object now and bail if it's not a secured message.
+ if (m_post && !policy.isAuthenticated()) {
+ if (policy.getIssuer() && !policy.getIssuerMetadata())
+ throw MetadataException("Security of SAML 1.x SSO POST response not established.");
throw SecurityPolicyException("Security of SAML 1.x SSO POST response not established.");
-
- // Remember whether we already established trust.
- bool alreadySecured = policy.isSecure();
+ }
- // Check for errors...this will throw if it's not a successful message.
- checkError(&xmlObject);
+ // Remember whether we already established trust.
+ bool alreadySecured = policy.isAuthenticated();
const Response* response = dynamic_cast<const Response*>(&xmlObject);
if (!response)
if (assertions.empty())
throw FatalProfileException("Incoming message contained no SAML assertions.");
+ pair<bool,int> minor = response->getMinorVersion();
+
// Maintain list of "legit" tokens to feed to SP subsystems.
- const AuthenticationStatement* ssoStatement=NULL;
+ const AuthenticationStatement* ssoStatement=nullptr;
vector<const opensaml::Assertion*> tokens;
// Also track "bad" tokens that we'll cache but not use.
// This is necessary because there may be valid tokens not aimed at us.
vector<const opensaml::Assertion*> badtokens;
- // Profile validator.
- time_t now = time(NULL);
- BrowserSSOProfileValidator ssoValidator(application.getAudiences(), now);
-
// With this flag on, we ignore any unsigned assertions.
- pair<bool,bool> flag = settings->getBool("signedAssertions");
-
- for (vector<saml1::Assertion*>::const_iterator a = assertions.begin(); a!=assertions.end(); ++a) {
- // Skip unsigned assertion?
- if (!(*a)->getSignature() && flag.first && flag.second) {
- m_log.warn("found unsigned assertion in SAML response, ignoring it per signedAssertions policy");
- badtokens.push_back(*a);
- continue;
- }
+ const EntityDescriptor* entity = policy.getIssuerMetadata() ? dynamic_cast<const EntityDescriptor*>(policy.getIssuerMetadata()->getParent()) : nullptr;
+ pair<bool,bool> flag = application.getRelyingParty(entity)->getBool("requireSignedAssertions");
+
+ // authnskew allows rejection of SSO if AuthnInstant is too old.
+ const PropertySet* sessionProps = application.getPropertySet("Sessions");
+ pair<bool,unsigned int> authnskew = sessionProps ? sessionProps->getUnsignedInt("maxTimeSinceAuthn") : pair<bool,unsigned int>(false,0);
+ // Saves off error messages potentially helpful for users.
+ string contextualError;
+
+ // Ensure the BrowserSSO rule is in the policy set.
+ if (find_if(policy.getRules(), _rulenamed(SAML1BROWSERSSO_POLICY_RULE)) == nullptr)
+ policy.getRules().push_back(m_ssoRule.get());
+
+ // Populate recipient as audience.
+ policy.getAudiences().push_back(application.getRelyingParty(entity)->getXMLString("entityID").second);
+
+ time_t now = time(nullptr);
+ for (indirect_iterator<vector<saml1::Assertion*>::const_iterator> a = make_indirect_iterator(assertions.begin());
+ a != make_indirect_iterator(assertions.end()); ++a) {
try {
+ // Skip unsigned assertion?
+ if (!a->getSignature() && flag.first && flag.second)
+ throw SecurityPolicyException("The incoming assertion was unsigned, violating local security policy.");
+
// We clear the security flag, so we can tell whether the token was secured on its own.
- policy.setSecure(false);
-
- // Run the policy over the assertion. Handles issuer consistency, replay, freshness,
- // and signature verification, assuming the relevant rules are configured.
- policy.evaluate(*(*a));
-
- // If no security is in place now, we kick it.
- if (!alreadySecured && !policy.isSecure()) {
- m_log.warn("unable to establish security of assertion");
- badtokens.push_back(*a);
- continue;
- }
+ policy.setAuthenticated(false);
+ policy.reset(true);
+
+ // Extract message bits and re-verify Issuer information.
+ extractMessageDetails(
+ *a, (minor.first && minor.second==0) ? samlconstants::SAML10_PROTOCOL_ENUM : samlconstants::SAML11_PROTOCOL_ENUM, policy
+ );
- // Now do profile and core semantic validation to ensure we can use it for SSO.
- ssoValidator.validateAssertion(*(*a));
+ // Run the policy over the assertion. Handles replay, freshness, and
+ // signature verification, assuming the relevant rules are configured,
+ // along with condition and profile enforcement.
+ policy.evaluate(*a, &httpRequest);
+
+ // If no security is in place now, we kick it.
+ if (!alreadySecured && !policy.isAuthenticated())
+ throw SecurityPolicyException("Unable to establish security of incoming assertion.");
// Track it as a valid token.
- tokens.push_back(*a);
+ tokens.push_back(&(*a));
// Save off the first valid SSO statement.
- if (!ssoStatement && !(*a)->getAuthenticationStatements().empty())
- ssoStatement = (*a)->getAuthenticationStatements().front();
+ const vector<AuthenticationStatement*>& statements =
+ const_cast<const saml1::Assertion&>(*a).getAuthenticationStatements();
+ for (indirect_iterator<vector<AuthenticationStatement*>::const_iterator> s = make_indirect_iterator(statements.begin());
+ s != make_indirect_iterator(statements.end()); ++s) {
+ if (s->getAuthenticationInstant() &&
+ s->getAuthenticationInstantEpoch() - XMLToolingConfig::getConfig().clock_skew_secs > now) {
+ contextualError = "The login time at your identity provider was future-dated.";
+ }
+ else if (authnskew.first && authnskew.second && s->getAuthenticationInstant() &&
+ s->getAuthenticationInstantEpoch() <= now && (now - s->getAuthenticationInstantEpoch() > authnskew.second)) {
+ contextualError = "The gap between now and the time you logged into your identity provider exceeds the allowed limit.";
+ }
+ else if (authnskew.first && authnskew.second && s->getAuthenticationInstant() == nullptr) {
+ contextualError = "Your identity provider did not supply a time of login, violating local policy.";
+ }
+ else if (!ssoStatement) {
+ ssoStatement = &(*s);
+ break;
+ }
+ }
}
- catch (exception& ex) {
+ catch (std::exception& ex) {
m_log.warn("detected a problem with assertion: %s", ex.what());
- badtokens.push_back(*a);
+ if (!ssoStatement)
+ contextualError = ex.what();
+ badtokens.push_back(&(*a));
}
}
- if (!ssoStatement)
- throw FatalProfileException("A valid authentication statement was not found in the incoming message.");
+ if (!ssoStatement) {
+ if (contextualError.empty())
+ throw FatalProfileException("A valid authentication statement was not found in the incoming message.");
+ throw FatalProfileException(contextualError.c_str());
+ }
// Address checking.
SubjectLocality* locality = ssoStatement->getSubjectLocality();
NameIdentifier* n = ssoStatement->getSubject()->getNameIdentifier();
+ // Now we have to extract the authentication details for attribute and session setup.
+
+ // Session expiration for SAML 1.x is purely SP-driven, and the method is mapped to a ctx class.
+ pair<bool,unsigned int> lifetime = sessionProps ? sessionProps->getUnsignedInt("lifetime") : pair<bool,unsigned int>(true,28800);
+ if (!lifetime.first || lifetime.second == 0)
+ lifetime.second = 28800;
+
// We've successfully "accepted" at least one SSO token, along with any additional valid tokens.
// To complete processing, we need to extract and resolve attributes and then create the session.
- multimap<string,Attribute*> resolvedAttributes;
- AttributeExtractor* extractor = application.getAttributeExtractor();
- if (extractor) {
- m_log.debug("extracting pushed attributes...");
- Locker extlocker(extractor);
- if (n) {
- try {
- extractor->extractAttributes(application, policy.getIssuerMetadata(), *n, resolvedAttributes);
- }
- catch (exception& ex) {
- m_log.error("caught exception extracting attributes: %s", ex.what());
- }
- }
- for (vector<const opensaml::Assertion*>::const_iterator t = tokens.begin(); t!=tokens.end(); ++t) {
- try {
- extractor->extractAttributes(application, policy.getIssuerMetadata(), *(*t), resolvedAttributes);
- }
- catch (exception& ex) {
- m_log.error("caught exception extracting attributes: %s", ex.what());
- }
- }
-
- AttributeFilter* filter = application.getAttributeFilter();
- if (filter && !resolvedAttributes.empty()) {
- BasicFilteringContext fc(application, policy.getIssuerMetadata());
- Locker filtlocker(filter);
- try {
- filter->filterAttributes(fc, resolvedAttributes);
- }
- catch (exception& ex) {
- m_log.error("caught exception filtering attributes: %s", ex.what());
- m_log.error("dumping extracted attributes due to filtering exception");
- for_each(resolvedAttributes.begin(), resolvedAttributes.end(), cleanup_pair<string,shibsp::Attribute>());
- resolvedAttributes.clear();
- }
- }
- }
- // First, normalize the SAML 1.x NameIdentifier...
- auto_ptr<NameID> nameid(n ? NameIDBuilder::buildNameID() : NULL);
+ // Normalize the SAML 1.x NameIdentifier...
+ scoped_ptr<NameID> nameid(n ? NameIDBuilder::buildNameID() : nullptr);
if (n) {
nameid->setName(n->getName());
nameid->setFormat(n->getFormat());
nameid->setNameQualifier(n->getNameQualifier());
}
- const EntityDescriptor* issuerMetadata =
- policy.getIssuerMetadata() ? dynamic_cast<const EntityDescriptor*>(policy.getIssuerMetadata()->getParent()) : NULL;
- auto_ptr<ResolutionContext> ctx(
- resolveAttributes(application, issuerMetadata, nameid.get(), &tokens, &resolvedAttributes)
+ // The context will handle deleting attributes and new tokens.
+ scoped_ptr<ResolutionContext> ctx(
+ resolveAttributes(
+ application,
+ &httpRequest,
+ policy.getIssuerMetadata(),
+ (!response->getMinorVersion().first || response->getMinorVersion().second==1) ?
+ samlconstants::SAML11_PROTOCOL_ENUM : samlconstants::SAML10_PROTOCOL_ENUM,
+ response,
+ n,
+ ssoStatement,
+ nameid.get(),
+ nullptr,
+ ssoStatement->getAuthenticationMethod(),
+ nullptr,
+ &tokens
+ )
);
- if (ctx.get()) {
+ if (ctx) {
// Copy over any new tokens, but leave them in the context for cleanup.
tokens.insert(tokens.end(), ctx->getResolvedAssertions().begin(), ctx->getResolvedAssertions().end());
-
- // Copy over new attributes, and transfer ownership.
- resolvedAttributes.insert(ctx->getResolvedAttributes().begin(), ctx->getResolvedAttributes().end());
- ctx->getResolvedAttributes().clear();
}
// Now merge in bad tokens for caching.
tokens.insert(tokens.end(), badtokens.begin(), badtokens.end());
- // Now we have to extract the authentication details for session setup.
-
- // Session expiration for SAML 1.x is purely SP-driven, and the method is mapped to a ctx class.
- const PropertySet* sessionProps = application.getPropertySet("Sessions");
- pair<bool,unsigned int> lifetime = sessionProps ? sessionProps->getUnsignedInt("lifetime") : make_pair(true,28800);
- if (!lifetime.first)
- lifetime.second = 28800;
- auto_ptr_char authnInstant(
- ssoStatement->getAuthenticationInstant() ? ssoStatement->getAuthenticationInstant()->getRawData() : NULL
+ string session_id;
+ application.getServiceProvider().getSessionCache()->insert(
+ session_id,
+ application,
+ httpRequest,
+ httpResponse,
+ now + lifetime.second,
+ entity,
+ (!response->getMinorVersion().first || response->getMinorVersion().second==1) ?
+ samlconstants::SAML11_PROTOCOL_ENUM : samlconstants::SAML10_PROTOCOL_ENUM,
+ nameid.get(),
+ ssoStatement->getAuthenticationInstant() ? ssoStatement->getAuthenticationInstant()->getRawData() : nullptr,
+ nullptr,
+ ssoStatement->getAuthenticationMethod(),
+ nullptr,
+ &tokens,
+ ctx ? &ctx->getResolvedAttributes() : nullptr
);
- auto_ptr_char authnMethod(ssoStatement->getAuthenticationMethod());
- try {
- string key = application.getServiceProvider().getSessionCache()->insert(
- lifetime.second ? now + lifetime.second : 0,
- application,
- httpRequest.getRemoteAddr().c_str(),
- issuerMetadata,
- nameid.get(),
- authnInstant.get(),
- NULL,
- authnMethod.get(),
- NULL,
- &tokens,
- &resolvedAttributes
+ scoped_ptr<LoginEvent> login_event(newLoginEvent(application, httpRequest));
+ if (login_event) {
+ login_event->m_sessionID = session_id.c_str();
+ login_event->m_peer = entity;
+ auto_ptr_char prot(
+ (!response->getMinorVersion().first || response->getMinorVersion().second==1) ?
+ samlconstants::SAML11_PROTOCOL_ENUM : samlconstants::SAML10_PROTOCOL_ENUM
);
- resolvedAttributes.clear(); // Attributes are owned by cache now.
- return key;
- }
- catch (exception&) {
- for_each(resolvedAttributes.begin(), resolvedAttributes.end(), cleanup_pair<string,Attribute>());
- throw;
+ login_event->m_protocol = prot.get();
+ login_event->m_nameID = nameid.get();
+ login_event->m_saml1AuthnStatement = ssoStatement;
+ login_event->m_saml1Response = response;
+ if (ctx)
+ login_event->m_attributes = &ctx->getResolvedAttributes();
+ application.getServiceProvider().getTransactionLog()->write(*login_event);
}
}
+
+#endif
projects / shibboleth / cpp-sp.git / blobdiff