/*
* This file is part of rockframework.
*
* rockframework 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.
*
* rockframework 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 br.net.woodstock.rockframework.security.crypt.impl;
import java.io.InputStream;
import java.io.Serializable;
import java.util.Scanner;
import javax.crypto.SecretKey;
import br.net.woodstock.rockframework.core.RockFrameworkVersion;
import br.net.woodstock.rockframework.core.util.Assert;
import br.net.woodstock.rockframework.security.crypt.CrypterException;
import br.net.woodstock.rockframework.security.crypt.CrypterReader;
import br.net.woodstock.rockframework.security.crypt.KeyType;
import br.net.woodstock.rockframework.security.crypt.util.Keys;
public class SynchronousCrypterReader implements CrypterReader<SynchronousCrypter>, Serializable {
private static final long serialVersionUID = RockFrameworkVersion.VERSION;
public SynchronousCrypterReader() {
super();
}
@Override
public SynchronousCrypter read(final InputStream inputStream) {
Assert.notNull(inputStream, "inputStream");
try {
Scanner scanner = new Scanner(inputStream);
StringBuilder keyText = new StringBuilder();
String algorithm = null;
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
if (!line.startsWith(CrypterIOHelper.SEPARATOR)) {
keyText.append(line);
keyText.append(CrypterIOHelper.NEW_LINE);
} else if (algorithm == null) {
algorithm = CrypterIOHelper.getAlgorithm(line);
}
}
scanner.close();
if (algorithm == null) {
throw new IllegalStateException("Could not read secret key algorithm");
}
if (keyText.length() == 0) {
throw new IllegalStateException("Could not read secret key");
}
byte[] keyBytes = CrypterIOHelper.readKey(keyText);
SecretKey secretKey = Keys.getSecretKeyFromFile(keyBytes, KeyType.getKeyType(algorithm));
SynchronousCrypter crypter = new SynchronousCrypter(secretKey);
return crypter;
} catch (Exception e) {
throw new CrypterException(e);
}
}
}