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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.
*/
/**
* EncryptedKeyResolver.cpp
*
* SAML-specific encrypted key resolver.
*/
#include "internal.h"
#include "encryption/EncryptedKeyResolver.h"
#include "saml2/core/Assertions.h"
#include <boost/lambda/bind.hpp>
#include <boost/lambda/lambda.hpp>
using namespace xmlencryption;
using opensaml::saml2::EncryptedElementType;
using namespace boost::lambda;
using namespace boost;
using namespace std;
opensaml::EncryptedKeyResolver::EncryptedKeyResolver(const EncryptedElementType& ref) : m_ref(ref)
{
}
opensaml::EncryptedKeyResolver::~EncryptedKeyResolver()
{
}
const EncryptedKey* opensaml::EncryptedKeyResolver::resolveKey(const EncryptedData& encryptedData, const XMLCh* recipient) const
{
const EncryptedKey* base = xmlencryption::EncryptedKeyResolver::resolveKey(encryptedData, recipient);
if (base)
return base;
static bool (*equal_fn)(const XMLCh*, const XMLCh*) = &XMLString::equals;
// Look for first match that has no Recipient attribute, or matches the input recipient.
// Using XMLString::equals allows for both to be NULL and still match.
vector<EncryptedKey*>::const_iterator k = find_if(
m_ref.getEncryptedKeys().begin(), m_ref.getEncryptedKeys().end(),
(lambda::bind(&EncryptedKey::getRecipient, _1) == ((const XMLCh*)nullptr) ||
lambda::bind(equal_fn, recipient, lambda::bind(&EncryptedKey::getRecipient, _1)))
);
return (k != m_ref.getEncryptedKeys().end()) ? (*k) : nullptr;
}
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