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/*
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.service.remote;
import java.io.ByteArrayOutputStream;
import java.io.PrintWriter;
import java.security.cert.X509Certificate;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.PasswordCallback;
import org.bouncycastle.openpgp.PGPPrivateKey;
import org.bouncycastle.openpgp.PGPSecretKey;
import org.bouncycastle.openssl.PEMWriter;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.pgp.PgpToX509;
import org.sufficientlysecure.keychain.util.Log;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteException;
public class ExtendedApiService extends RemoteService {
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
private void selfSignedX509CertSafe(String subjAltNameURI, IExtendedApiCallback callback,
AppSettings appSettings) {
// TODO: for pgp keyrings with password
CallbackHandler pgpPwdCallbackHandler = new PgpToX509.PredefinedPasswordCallbackHandler("");
try {
long keyId = appSettings.getKeyId();
PGPSecretKey pgpSecretKey = PgpKeyHelper.getSigningKey(this, keyId);
PasswordCallback pgpSecKeyPasswordCallBack = new PasswordCallback("pgp passphrase?",
false);
pgpPwdCallbackHandler.handle(new Callback[] { pgpSecKeyPasswordCallBack });
PGPPrivateKey pgpPrivKey = pgpSecretKey.extractPrivateKey(
pgpSecKeyPasswordCallBack.getPassword(), Constants.BOUNCY_CASTLE_PROVIDER_NAME);
pgpSecKeyPasswordCallBack.clearPassword();
X509Certificate selfSignedCert = PgpToX509.createSelfSignedCert(pgpSecretKey,
pgpPrivKey, subjAltNameURI);
// Write x509cert and privKey into files
// FileOutputStream fosCert = context.openFileOutput(CERT_FILENAME,
// Context.MODE_PRIVATE);
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
PEMWriter pemWriterCert = new PEMWriter(new PrintWriter(outStream));
pemWriterCert.writeObject(selfSignedCert);
pemWriterCert.close();
byte[] outputBytes = outStream.toByteArray();
callback.onSuccess(outputBytes);
} catch (Exception e) {
Log.e(Constants.TAG, "ExtendedApiService", e);
try {
callback.onError(e.getMessage());
} catch (RemoteException e1) {
Log.e(Constants.TAG, "ExtendedApiService", e);
}
}
// TODO: no private key at the moment! Don't give it to others
// PrivateKey privKey = pgpPrivKey.getKey();
// FileOutputStream fosKey = context.openFileOutput(PRIV_KEY_FILENAME,
// Context.MODE_PRIVATE);
// PEMWriter pemWriterKey = new PEMWriter(new PrintWriter(fosKey));
// pemWriterKey.writeObject(privKey);
// pemWriterKey.close();
}
private final IExtendedApiService.Stub mBinder = new IExtendedApiService.Stub() {
@Override
public void encrypt(byte[] inputBytes, String passphrase, IExtendedApiCallback callback)
throws RemoteException {
// TODO : implement
}
@Override
public void selfSignedX509Cert(final String subjAltNameURI,
final IExtendedApiCallback callback) throws RemoteException {
final AppSettings settings = getAppSettings();
Runnable r = new Runnable() {
@Override
public void run() {
selfSignedX509CertSafe(subjAltNameURI, callback, settings);
}
};
checkAndEnqueue(r);
}
};
}
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