001/* 002 * Syncany, www.syncany.org 003 * Copyright (C) 2011-2016 Philipp C. Heckel <philipp.heckel@gmail.com> 004 * 005 * This program is free software: you can redistribute it and/or modify 006 * it under the terms of the GNU General Public License as published by 007 * the Free Software Foundation, either version 3 of the License, or 008 * (at your option) any later version. 009 * 010 * This program is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 013 * GNU General Public License for more details. 014 * 015 * You should have received a copy of the GNU General Public License 016 * along with this program. If not, see <http://www.gnu.org/licenses/>. 017 */ 018package org.syncany.config.to; 019 020import java.io.File; 021 022import org.simpleframework.xml.Element; 023import org.simpleframework.xml.Root; 024import org.simpleframework.xml.core.Commit; 025import org.simpleframework.xml.core.Complete; 026import org.simpleframework.xml.core.Persist; 027import org.simpleframework.xml.core.Persister; 028import org.syncany.config.ConfigException; 029import org.syncany.util.StringUtil; 030 031/** 032 * The master transfer object is used to create and load the master file 033 * from/to XML. The master file only contains the salt for the master key. 034 * 035 * <p>The master file is stored locally and on the remote storage. The salt 036 * is used to create the master key from a password. 037 * 038 * <p>It uses the Simple framework for XML serialization, and its corresponding 039 * annotation-based configuration. 040 * 041 * @see <a href="http://simple.sourceforge.net/">Simple framework</a> 042 * @author Philipp C. Heckel (philipp.heckel@gmail.com) 043 */ 044@Root(name = "master", strict = false) 045public class MasterTO { 046 @Element(name = "salt", required = false) 047 private String saltEncoded; 048 private byte[] salt; 049 050 public MasterTO() { 051 // Required default constructor 052 } 053 054 public MasterTO(byte[] salt) { 055 this.salt = salt; 056 } 057 058 public byte[] getSalt() { 059 return salt; 060 } 061 062 public void setSalt(byte[] salt) { 063 this.salt = salt; 064 } 065 066 public void save(File file) throws ConfigException { 067 try { 068 new Persister().write(this, file); 069 } 070 catch (Exception e) { 071 throw new ConfigException("Cannot write masterTO to file " + file, e); 072 } 073 } 074 075 @Persist 076 public void prepare() { 077 saltEncoded = (salt != null) ? StringUtil.toHex(salt) : null; 078 } 079 080 @Complete 081 public void release() { 082 saltEncoded = null; 083 } 084 085 @Commit 086 public void commit() { 087 salt = (saltEncoded != null) ? StringUtil.fromHex(saltEncoded) : null; 088 } 089}