org.apache.sshd.client.auth.hostbased.HostKeyIdentityProvider Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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*/
package org.apache.sshd.client.auth.hostbased;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.security.KeyPair;
import java.security.cert.X509Certificate;
import java.util.AbstractMap.SimpleImmutableEntry;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.sshd.common.session.SessionContext;
import org.apache.sshd.common.util.GenericUtils;
/**
* @author Apache MINA SSHD Project
*/
@FunctionalInterface
public interface HostKeyIdentityProvider {
/**
* @param session The {@link SessionContext} for invoking this load command - may be {@code null}
* if not invoked within a session context (e.g., offline tool).
* @return The host keys as a {@link java.util.Map.Entry} of key + certificates (which can
* be {@code null}/empty)
* @throws IOException If failed to load the keys
* @throws GeneralSecurityException If failed to parse the keys
*/
Iterable>> loadHostKeys(SessionContext session)
throws IOException, GeneralSecurityException;
static Iterator>> iteratorOf(
SessionContext session, HostKeyIdentityProvider provider)
throws IOException, GeneralSecurityException {
return GenericUtils.iteratorOf((provider == null) ? null : provider.loadHostKeys(session));
}
static HostKeyIdentityProvider wrap(KeyPair... pairs) {
return wrap(GenericUtils.asList(pairs));
}
static HostKeyIdentityProvider wrap(Iterable pairs) {
return session -> GenericUtils.wrapIterable(pairs,
kp -> new SimpleImmutableEntry<>(kp, Collections. emptyList()));
}
}