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/**
* 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
*
* 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.
*/
/**
* SAML1BrowserSSORule.cpp
*
* SAML 1.x Browser SSO Profile SecurityPolicyRule
*/
#include "internal.h"
#include "exceptions.h"
#include "binding/SecurityPolicyRule.h"
#include "saml1/core/Assertions.h"
#include <functional>
#include <xmltooling/logging.h>
using namespace opensaml::saml1;
using namespace xmltooling::logging;
using namespace xmltooling;
using namespace std;
namespace opensaml {
namespace saml1 {
class SAML_DLLLOCAL BrowserSSORule : public opensaml::SecurityPolicyRule
{
public:
BrowserSSORule(const DOMElement* e) : SecurityPolicyRule(e) {
if (m_profiles.empty()) {
m_profiles.insert(samlconstants::SAML1_PROFILE_BROWSER_POST);
m_profiles.insert(samlconstants::SAML1_PROFILE_BROWSER_ARTIFACT);
}
}
virtual ~BrowserSSORule() {}
const char* getType() const {
return SAML1BROWSERSSO_POLICY_RULE;
}
bool evaluate(const XMLObject& message, const GenericRequest* request, opensaml::SecurityPolicy& policy) const;
};
opensaml::SecurityPolicyRule* SAML_DLLLOCAL BrowserSSORuleFactory(const DOMElement* const & e, bool)
{
return new BrowserSSORule(e);
}
class SAML_DLLLOCAL _checkMethod : public unary_function<const SubjectStatement*,void>,
public unary_function<const ConfirmationMethod*,bool>
{
public:
void operator()(const SubjectStatement* s) const {
const Subject* sub = s->getSubject();
if (s) {
const SubjectConfirmation* sc = sub->getSubjectConfirmation();
if (sc) {
const vector<ConfirmationMethod*>& methods = sc->getConfirmationMethods();
if (find_if(methods.begin(), methods.end(), _checkMethod())!=methods.end())
return; // methods checked out
}
}
throw SecurityPolicyException("Assertion contained a statement without a supported ConfirmationMethod.");
}
bool operator()(const ConfirmationMethod* cm) const {
const XMLCh* m = cm->getMethod();
return (XMLString::equals(m,SubjectConfirmation::BEARER) ||
XMLString::equals(m,SubjectConfirmation::ARTIFACT) ||
XMLString::equals(m,SubjectConfirmation::ARTIFACT01));
}
};
};
};
bool BrowserSSORule::evaluate(const XMLObject& message, const GenericRequest* request, opensaml::SecurityPolicy& policy) const
{
if (!SecurityPolicyRule::evaluate(message, request, policy)) {
return false;
}
const Assertion* a=dynamic_cast<const Assertion*>(&message);
if (!a)
return false;
// Make sure the assertion is bounded.
const Conditions* conds = a->getConditions();
if (!conds || !conds->getNotBefore() || !conds->getNotOnOrAfter())
throw SecurityPolicyException("Browser SSO assertions MUST contain NotBefore/NotOnOrAfter attributes.");
// Each statement MUST have proper confirmation requirements.
const vector<AuthenticationStatement*>& authn = a->getAuthenticationStatements();
for_each(authn.begin(), authn.end(), _checkMethod());
const vector<AttributeStatement*>& attr = a->getAttributeStatements();
for_each(attr.begin(), attr.end(), _checkMethod());
return true;
}
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