| /* |
| * 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.common.config.keys; |
| |
| import java.io.IOException; |
| import java.security.GeneralSecurityException; |
| import java.security.PrivateKey; |
| import java.security.spec.InvalidKeySpecException; |
| |
| import org.apache.sshd.common.session.SessionContext; |
| |
| /** |
| * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a> |
| */ |
| @FunctionalInterface |
| public interface PrivateKeyEntryResolver { |
| /** |
| * A resolver that ignores all input |
| */ |
| PrivateKeyEntryResolver IGNORING = new PrivateKeyEntryResolver() { |
| @Override |
| public PrivateKey resolve(SessionContext session, String keyType, byte[] keyData) |
| throws IOException, GeneralSecurityException { |
| return null; |
| } |
| |
| @Override |
| public String toString() { |
| return "IGNORING"; |
| } |
| }; |
| |
| /** |
| * A resolver that fails on all input |
| */ |
| PrivateKeyEntryResolver FAILING = new PrivateKeyEntryResolver() { |
| @Override |
| public PrivateKey resolve(SessionContext session, String keyType, byte[] keyData) |
| throws IOException, GeneralSecurityException { |
| throw new InvalidKeySpecException("Failing resolver on key type=" + keyType); |
| } |
| |
| @Override |
| public String toString() { |
| return "FAILING"; |
| } |
| }; |
| |
| /** |
| * @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 or session unknown). |
| * @param keyType The {@code OpenSSH} reported key type |
| * @param keyData The {@code OpenSSH} encoded key data |
| * @return The extracted {@link PrivateKey} - ignored if {@code null} |
| * @throws IOException If failed to parse the key data |
| * @throws GeneralSecurityException If failed to generate the key |
| */ |
| PrivateKey resolve(SessionContext session, String keyType, byte[] keyData) |
| throws IOException, GeneralSecurityException; |
| } |