/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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.apache.sshd.client.auth.hostbased;
import java.security.KeyPair;
import java.security.cert.X509Certificate;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.apache.sshd.common.util.GenericUtils;
import org.apache.sshd.common.util.Pair;
/**
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
@FunctionalInterface
public interface HostKeyIdentityProvider {
/**
* @return The host keys as a {@link Pair} of key + certificates (which can be {@code null}/empty)
*/
Iterable<Pair<KeyPair, List<X509Certificate>>> loadHostKeys();
static Iterator<Pair<KeyPair, List<X509Certificate>>> iteratorOf(HostKeyIdentityProvider provider) {
return GenericUtils.iteratorOf((provider == null) ? null : provider.loadHostKeys());
}
static HostKeyIdentityProvider wrap(KeyPair... pairs) {
return wrap(GenericUtils.asList(pairs));
}
static HostKeyIdentityProvider wrap(Iterable<? extends KeyPair> pairs) {
return () -> GenericUtils.wrapIterable(pairs, kp -> new Pair<>(kp, Collections.<X509Certificate>emptyList()));
}
}