org.opensaml.xmlsec.encryption.support.InlineEncryptedKeyResolver Maven / Gradle / Ivy
/*
* 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. The 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.
*/
package org.opensaml.xmlsec.encryption.support;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import net.shibboleth.utilities.java.support.logic.Constraint;
import org.opensaml.xmlsec.encryption.EncryptedData;
import org.opensaml.xmlsec.encryption.EncryptedKey;
/**
* Implementation of {@link EncryptedKeyResolver} which finds {@link EncryptedKey} elements
* within the {@link org.opensaml.xmlsec.signature.KeyInfo} of the {@link EncryptedData} context.
*/
public class InlineEncryptedKeyResolver extends AbstractEncryptedKeyResolver {
/** Constructor. */
public InlineEncryptedKeyResolver() {
}
/**
* Constructor.
*
* @param recipients the set of recipients
*/
public InlineEncryptedKeyResolver(@Nullable final Set recipients) {
super(recipients);
}
/**
* Constructor.
*
* @param recipient the recipient
*/
public InlineEncryptedKeyResolver(@Nullable final String recipient) {
this(Collections.singleton(recipient));
}
/** {@inheritDoc} */
@Nonnull public Iterable resolve(@Nonnull final EncryptedData encryptedData) {
Constraint.isNotNull(encryptedData, "EncryptedData cannot be null");
final List resolvedEncKeys = new ArrayList<>();
if (encryptedData.getKeyInfo() == null) {
return resolvedEncKeys;
}
for (final EncryptedKey encKey : encryptedData.getKeyInfo().getEncryptedKeys()) {
if (matchRecipient(encKey.getRecipient())) {
resolvedEncKeys.add(encKey);
}
}
return resolvedEncKeys;
}
}