/*
* Copyright (C) 2012 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.crsh.ssh.term;
import org.apache.sshd.common.keyprovider.AbstractKeyPairProvider;
import org.apache.sshd.common.util.SecurityUtils;
import org.bouncycastle.openssl.PEMReader;
import org.crsh.vfs.Resource;
import java.io.ByteArrayInputStream;
import java.io.InputStreamReader;
import java.security.KeyPair;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
public class URLKeyPairProvider extends AbstractKeyPairProvider {
/** . */
private static final Logger log = Logger.getLogger(URLKeyPairProvider.class.getName());
/** . */
private final Resource key;
public URLKeyPairProvider(Resource key) {
this.key = key;
}
@Override
public Iterable<java.security.KeyPair> loadKeys() {
if (!SecurityUtils.isBouncyCastleRegistered()) {
throw new IllegalStateException("BouncyCastle must be registered as a JCE provider");
}
List<KeyPair> keys = new ArrayList<KeyPair>();
if (key != null) {
try {
PEMReader r = new PEMReader(new InputStreamReader(new ByteArrayInputStream(key.getContent())));
try {
Object o = r.readObject();
if (o instanceof KeyPair) {
keys.add((KeyPair) o);
}
} finally {
r.close();
}
} catch (Exception e) {
log.log(Level.INFO, "Unable to read key " + key + ": " + key, e);
}
}
return keys;
}
}