NullFilenameDecryptionStrategy.java

/*
 * EncFS Java Library
 * Copyright (C) 2013 encfs-java authors
 *
 * This program 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 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 Lesser General Public License for more details.
 */
package org.mrpdaemon.sec.encfs;


/**
 * Class implementing the NULL decryption strategy
 */
public class NullFilenameDecryptionStrategy extends FilenameDecryptionStrategy {

    public NullFilenameDecryptionStrategy(EncFSVolume volume, String volumePath) {
        super(volume, volumePath, EncFSFilenameEncryptionAlgorithm.NULL);
    }


    @Override
    protected String decryptImpl(String fileName) throws EncFSCorruptDataException, EncFSChecksumException {
        EncFSFile rootDir = getVolume().getRootDir();
        // Filter out config file
        if (getVolumePath().equals(rootDir.getPath())&&fileName.equals(EncFSVolume.CONFIG_FILE_NAME)) {
            return null;
        }
        return fileName;
    }

}