org.apache.sshd.common.config.keys.impl.AbstractPublicKeyEntryDecoder 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
* under the License.
*/
package org.apache.sshd.common.config.keys.impl;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.util.Collection;
import java.util.Map;
import org.apache.sshd.common.PropertyResolverUtils;
import org.apache.sshd.common.config.keys.PublicKeyEntryDecoder;
import org.apache.sshd.common.util.MapEntryUtils;
/**
* Useful base class implementation for a decoder of an {@code OpenSSH} encoded key data
*
* @param Type of {@link PublicKey}
* @param Type of {@link PrivateKey}
* @author Apache MINA SSHD Project
*/
public abstract class AbstractPublicKeyEntryDecoder
extends AbstractKeyEntryResolver
implements PublicKeyEntryDecoder {
protected AbstractPublicKeyEntryDecoder(Class pubType, Class prvType, Collection names) {
super(pubType, prvType, names);
}
protected final boolean parseBooleanHeader(Map headers, String propertyKey, boolean defaultVal) {
if (MapEntryUtils.isEmpty(headers) || !headers.containsKey(propertyKey)) {
return defaultVal;
}
String stringVal = headers.get(propertyKey);
Boolean boolVal;
try {
boolVal = PropertyResolverUtils.parseBoolean(stringVal);
} catch (IllegalArgumentException e) {
log.warn("Ignoring non-boolean property value for \"" + propertyKey + "\": " + stringVal);
boolVal = null;
}
if (boolVal == null) {
return defaultVal;
}
return boolVal;
}
}