Files
KeePassDX/app/src/main/java/com/kunzisoft/keepass/database/PwDatabaseV3.java
2018-04-21 14:20:43 +02:00

345 lines
8.6 KiB
Java

/*
* Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
*
* This file is part of KeePass DX.
*
* KeePass DX 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.
*
* KeePass DX 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 KeePass DX. If not, see <http://www.gnu.org/licenses/>.
*
*
Derived from
KeePass for J2ME
Copyright 2007 Naomaru Itoi <nao@phoneid.org>
This file was derived from
Java clone of KeePass - A KeePass file viewer for Java
Copyright 2006 Bill Zwicky <billzwicky@users.sourceforge.net>
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
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, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.kunzisoft.keepass.database;
import com.kunzisoft.keepass.crypto.keyDerivation.AesKdf;
import com.kunzisoft.keepass.database.exception.InvalidKeyFileException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
/**
* @author Naomaru Itoi <nao@phoneid.org>
* @author Bill Zwicky <wrzwicky@pobox.com>
* @author Dominik Reichl <dominik.reichl@t-online.de>
*/
public class PwDatabaseV3 extends PwDatabase<PwGroupV3, PwEntryV3> {
private static final int DEFAULT_ENCRYPTION_ROUNDS = 300;
// all entries
private List<PwEntryV3> entries = new ArrayList<>();
// all groups
private List<PwGroupV3> groups = new ArrayList<>();
private int numKeyEncRounds;
@Override
public void initNew(String dbPath) {
algorithm = PwEncryptionAlgorithm.AES_Rijndael;
numKeyEncRounds = DEFAULT_ENCRYPTION_ROUNDS;
// Build the root tree
constructTree(null);
// Add a couple default groups
initAndAddGroup("Internet", 1, rootGroup);
initAndAddGroup("eMail", 19, rootGroup);
}
private void initAndAddGroup(String name, int iconId, PwGroupV3 parent) {
PwGroupV3 group = createGroup();
group.setId(newGroupId());
group.setName(name);
group.setIcon(iconFactory.getIcon(iconId));
addGroupTo(group, parent);
}
@Override
public PwVersion getVersion() {
return PwVersion.V3;
}
@Override
public String getKeyDerivationName() {
return AesKdf.DEFAULT_NAME;
}
@Override
public List<PwGroupV3> getGroups() {
return groups;
}
public void setGroups(List<PwGroupV3> grp) {
groups = grp;
}
public void addGroup(PwGroupV3 group) {
this.groups.add(group);
}
public int numberOfGroups() {
return groups.size();
}
@Override
public List<PwEntryV3> getEntries() {
return entries;
}
public PwEntry getEntryAt(int position) {
return entries.get(position);
}
public void addEntry(PwEntryV3 entry) {
this.entries.add(entry);
}
public int numberOfEntries() {
return entries.size();
}
@Override
public List<PwGroupV3> getGrpRoots() {
int target = 0;
List<PwGroupV3> kids = new ArrayList<>();
for (int i = 0; i < groups.size(); i++) {
PwGroupV3 grp = groups.get(i);
if (grp.getLevel() == target)
kids.add(grp);
}
return kids;
}
public List<PwGroupV3> getGrpChildren(PwGroupV3 parent) {
int idx = groups.indexOf(parent);
int target = parent.getLevel() + 1;
List<PwGroupV3> kids = new ArrayList<>();
while (++idx < groups.size()) {
PwGroupV3 grp = groups.get(idx);
if (grp.getLevel() < target)
break;
else if (grp.getLevel() == target)
kids.add(grp);
}
return kids;
}
public List<PwEntryV3> getEntries(PwGroupV3 parent) {
List<PwEntryV3> kids = new ArrayList<>();
/*
* for( Iterator i = entries.iterator(); i.hasNext(); ) { PwEntryV3 ent
* = (PwEntryV3)i.next(); if( ent.groupId == parent.groupId ) kids.add(
* ent ); }
*/
for (int i = 0; i < entries.size(); i++) {
PwEntryV3 ent = entries.get(i);
if (ent.getGroupId() == parent.getGroupId())
kids.add(ent);
}
return kids;
}
public void constructTree(PwGroupV3 currentGroup) {
// I'm in root
if (currentGroup == null) {
PwGroupV3 root = new PwGroupV3();
rootGroup = root;
List<PwGroupV3> rootChildGroups = getGrpRoots();
root.setGroups(rootChildGroups);
root.setEntries(new ArrayList<>());
root.setLevel(-1);
for (int i = 0; i < rootChildGroups.size(); i++) {
PwGroupV3 grp = rootChildGroups.get(i);
grp.setParent(root);
constructTree(grp);
}
return;
}
// I'm in non-root
// get child groups
currentGroup.setGroups(getGrpChildren(currentGroup));
currentGroup.setEntries(getEntries(currentGroup));
// set parent in child entries
for (int i = 0; i < currentGroup.numbersOfChildEntries(); i++) {
PwEntryV3 entry = currentGroup.getChildEntryAt(i);
entry.setParent(currentGroup);
}
// recursively construct child groups
for (int i = 0; i < currentGroup.numbersOfChildGroups(); i++) {
PwGroupV3 grp = currentGroup.getChildGroupAt(i);
grp.setParent(currentGroup);
constructTree(currentGroup.getChildGroupAt(i));
}
}
/*
public void removeGroup(PwGroupV3 tree) {
tree.parent.childGroups.remove(tree);
groups.remove(tree);
}
*/
/**
* Generates an unused random tree id
*
* @return new tree id
*/
@Override
public PwGroupIdV3 newGroupId() {
PwGroupIdV3 newId;
Random random = new Random();
while (true) {
newId = new PwGroupIdV3(random.nextInt());
if (!isGroupIdUsed(newId)) break;
}
return newId;
}
@Override
public byte[] getMasterKey(String key, InputStream keyInputStream)
throws InvalidKeyFileException, IOException {
if (key != null && keyInputStream != null) {
return getCompositeKey(key, keyInputStream);
} else if (key != null) { // key.length() >= 0
return getPasswordKey(key);
} else if (keyInputStream != null) { // key == null
return getFileKey(keyInputStream);
} else {
throw new IllegalArgumentException("Key cannot be empty.");
}
}
@Override
protected String getPasswordEncoding() {
return "ISO-8859-1";
}
@Override
protected byte[] loadXmlKeyFile(InputStream keyInputStream) {
return null;
}
@Override
public long getNumberKeyEncryptionRounds() {
return numKeyEncRounds;
}
@Override
public void setNumberKeyEncryptionRounds(long rounds) throws NumberFormatException {
if (rounds > Integer.MAX_VALUE || rounds < Integer.MIN_VALUE) {
throw new NumberFormatException();
}
numKeyEncRounds = (int) rounds;
}
@Override
public void addEntryTo(PwEntryV3 newEntry, PwGroupV3 parent) {
super.addEntryTo(newEntry, parent);
// Add entry to root entries
entries.add(newEntry);
}
@Override
public void addGroupTo(PwGroupV3 newGroup, PwGroupV3 parent) {
super.addGroupTo(newGroup, parent);
// Add tree to root groups
groups.add(newGroup);
}
@Override
public void removeEntryFrom(PwEntryV3 remove, PwGroupV3 parent) {
super.removeEntryFrom(remove, parent);
// Remove entry from root entry
entries.remove(remove);
}
@Override
public void removeGroupFrom(PwGroupV3 remove, PwGroupV3 parent) {
super.removeGroupFrom(remove, parent);
// Remove tree from root entry
groups.remove(remove);
}
@Override
public PwGroupV3 createGroup() {
return new PwGroupV3();
}
// TODO: This could still be refactored cleaner
public void copyEncrypted(byte[] buf, int offset, int size) {
// No-op
}
// TODO: This could still be refactored cleaner
public void copyHeader(PwDbHeaderV3 header) {
// No-op
}
@Override
public boolean isBackup(PwGroupV3 group) {
while (group != null) {
if (group.getLevel() == 0 && group.getName().equalsIgnoreCase("Backup")) {
return true;
}
group = group.getParent();
}
return false;
}
@Override
public boolean isGroupSearchable(PwGroupV3 group, boolean omitBackup) {
if (!super.isGroupSearchable(group, omitBackup)) {
return false;
}
return !(omitBackup && isBackup(group));
}
}