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A Java library to store password securely
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/*
* Copyright © 2019, Java Keyring
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.github.javakeyring.internal.freedesktop;
import java.io.IOException;
import java.security.AccessControlException;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import javax.crypto.BadPaddingException;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import org.freedesktop.dbus.DBusPath;
import org.freedesktop.dbus.ObjectPath;
import org.freedesktop.dbus.connections.impl.DBusConnection;
import org.freedesktop.dbus.exceptions.DBusException;
import org.freedesktop.dbus.types.Variant;
import org.freedesktop.secret.Collection;
import org.freedesktop.secret.Item;
import org.freedesktop.secret.Pair;
import org.freedesktop.secret.Prompt;
import org.freedesktop.secret.Secret;
import org.freedesktop.secret.Service;
import org.freedesktop.secret.Session;
import org.freedesktop.secret.Static;
import org.freedesktop.secret.TransportEncryption;
import org.freedesktop.secret.interfaces.Prompt.Completed;
import org.gnome.keyring.InternalUnsupportedGuiltRiddenInterface;
/**
* A clone of {@link org.freedesktop.secret.simple.SimpleCollection}, with the prompting capability removed.
*/
public final class SimpleCollection implements AutoCloseable {
private TransportEncryption encryption = null;
private Service service = null;
private Session session = null;
private Prompt prompt = null;
private InternalUnsupportedGuiltRiddenInterface withoutPrompt = null;
private Collection collection;
private Secret encrypted = null;
/**
* The default collection.
* @throws IOException if dbus collection can not be accessed.
*/
public SimpleCollection() throws IOException {
init();
ObjectPath path = Static.Convert.toObjectPath(Static.ObjectPaths.DEFAULT_COLLECTION);
this.collection = new Collection(path, service);
unlock();
}
/*
* A user specified collection.
*
* @param label The displayable label of the collection
*
* NOTE: The 'label' of a collection may differ from the 'id' of
* a collection. The 'id' is assigned by the Secret Service and
* used in the DBus object path of a collection or item.
*
*
* A SimpleCollection can't handle collections with the same
* label, but different ids correctly.
*
* @param password Password of the collection
* @throws IOException if dbus collection can not be accessed.
*
/*
@SuppressWarnings("rawtypes")
public SimpleCollection(String label, CharSequence password) throws IOException {
init();
if (exists(label)) {
ObjectPath path = getCollectionPath(label);
this.collection = new Collection(path, service);
} else {
DBusPath path = null;
Map properties = Collection.createProperties(label);
if (password == null) {
Pair response = service.createCollection(properties);
if (!"/".equals(response.a.getPath())) {
path = response.a;
}
performPrompt(response.b);
} else {
try {
encrypted = encryption.encrypt(password);
path = withoutPrompt.createWithMasterPassword(properties, encrypted);
} catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidAlgorithmParameterException
| InvalidKeyException | BadPaddingException | IllegalBlockSizeException ex) {
// log.error(e.toString(), e.getCause());
}
}
if (path == null) {
try {
Thread.sleep(100L);
} catch (InterruptedException ex) {
// log.error(e.toString(), e.getCause());
}
Service.CollectionCreated cc = service.getSignalHandler().getLastHandledSignal(Service.CollectionCreated.class);
path = cc.collection;
}
this.collection = new Collection(path, service);
}
unlock();
}
*/
private void init() throws IOException {
try {
encryption = new TransportEncryption();
encryption.initialize();
encryption.openSession();
encryption.generateSessionKey();
service = encryption.getService();
session = service.getSession();
prompt = new Prompt(service);
withoutPrompt = new InternalUnsupportedGuiltRiddenInterface(service);
} catch (DBusException | NoSuchAlgorithmException | InvalidAlgorithmParameterException | InvalidKeySpecException
| InvalidKeyException ex) {
// log.error(e.toString(), e.getCause());
throw new IOException(ex.toString(), ex.getCause());
}
}
/*
private Map getLabels() {
List collections = service.getCollections();
Map labels = new HashMap<>();
for (ObjectPath path : collections) {
Collection collection = new Collection(path, service, null);
labels.put(path, collection.getLabel());
}
return labels;
}
private boolean exists(String label) {
Map labels = getLabels();
return labels.values().contains(label);
}
private ObjectPath getCollectionPath(String label) {
Map labels = getLabels();
ObjectPath path = null;
for (Map.Entry entry : labels.entrySet()) {
ObjectPath currentPath = entry.getKey();
String currentLabel = entry.getValue();
if (label.equals(currentLabel)) {
path = currentPath;
break;
}
}
return path;
}
*/
/*
private final boolean isDefault() {
List defaults = Arrays.asList(null, "login", "session", "default");
return defaults.contains(collection.getId());
}
*/
private void performPrompt(ObjectPath path) {
if (!("/".equals(path.getPath()))) {
prompt.await(path);
}
}
private void unlock() {
if (collection.isLocked()) {
if (encrypted == null) {
Pair, ObjectPath> response = service.unlock(Arrays.asList(collection.getPath()));
performPrompt(response.b);
} else {
withoutPrompt.unlockWithMasterPassword(collection.getPath(), encrypted);
}
}
}
private Item getItem(String path) {
return new Item(Static.Convert.toObjectPath(path), service);
}
/*
private void getUserPermission() throws AccessControlException {
if (isDefault() && enableUserPrompts) {
List lockable = Arrays.asList(collection.getPath());
service.lock(lockable);
try {
Thread.sleep(250L);
} catch (InterruptedException ex) {
//fail silently?
}
Pair, ObjectPath> response = service.unlock(lockable);
performPrompt(response.b);
if (collection.isLocked()) {
throw new AccessControlException(
"One may not read all passwords from a default collection without permission.");
}
}
}
*/
/**
* Clears the private key of the transport encryption and the passphrase of the
* collection.
*/
public void clear() {
if (encryption != null) {
encryption.clear();
}
if (encrypted != null) {
encrypted.clear();
}
}
@Override
public void close() throws Exception {
clear();
if (service != null) {
DBusConnection connection = service.getConnection();
if (connection != null) {
service.getConnection().close();
}
connection.close();
}
}
/**
* Delete this collection.
* @throws AccessControlException if user is prompted and refuses.
*
*/
/*
public void delete() throws AccessControlException {
if (!isDefault()) {
ObjectPath promptPath = collection.delete();
performPrompt(promptPath);
} else {
throw new AccessControlException("Default collections may not be deleted with the simple API.");
}
}
*/
/**
* Creates an item with the provided properties in this collection.
*
* @param label The displayable label of the new item
* @param password The password of the new item
* @param attributes The attributes of the new item
*
* @return DBus object path
*
* @throws IllegalArgumentException if inputs are null
*/
@SuppressWarnings("rawtypes")
public String createItem(String label, CharSequence password, Map attributes)
throws IllegalArgumentException {
if (password == null) {
throw new IllegalArgumentException("The password may not be null.");
}
if (label == null) {
throw new IllegalArgumentException("The label of the password may not be null.");
}
unlock();
DBusPath item = null;
final Map properties = Item.createProperties(label, attributes);
try (final Secret secret = encryption.encrypt(password)) {
Pair response = collection.createItem(properties, secret, false);
item = response.a;
if ("/".equals(item.getPath())) {
Completed completed = prompt.await(response.b);
if (!completed.dismissed) {
Collection.ItemCreated ic = collection.getSignalHandler().getLastHandledSignal(Collection.ItemCreated.class);
item = ic.item;
}
}
} catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidAlgorithmParameterException
| InvalidKeyException | BadPaddingException | IllegalBlockSizeException ex) {
// log.error(e.toString(), e.getCause());
}
return item.getPath();
}
/**
* Creates an item with the provided properties in this collection.
*
* @param label The displayable label of the new item
* @param password The password of the new item
*
* @return DBus object path
*
* @throws IllegalArgumentException if inputs are null
*/
public String createItem(String label, CharSequence password) throws IllegalArgumentException {
return createItem(label, password, null);
}
/**
* Updates an item with the provided properties.
*
* @param objectPath The DBus object path of the item
* @param label The displayable label of the new item
* @param password The password of the new item
* @param attributes The attributes of the new item
*
* @throws IllegalArgumentException if inputs are null
*/
public void updateItem(String objectPath, String label, CharSequence password, Map attributes)
throws IllegalArgumentException {
if (objectPath == null) {
throw new IllegalArgumentException("The object path of the item may not be null.");
}
unlock();
Item item = getItem(objectPath);
if (label != null) {
item.setLabel(label);
}
if (attributes != null) {
item.setAttributes(attributes);
}
if (password != null) {
try (Secret secret = encryption.encrypt(password)) {
item.setSecret(secret);
} catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidAlgorithmParameterException
| InvalidKeyException | BadPaddingException | IllegalBlockSizeException ex) {
// log.error(e.toString(), e.getCause());
}
}
}
/**
* Get the displayable label of an item.
*
* @param objectPath The DBus object path of the item
*
* @return label
*/
/*
public String getLabel(String objectPath) {
unlock();
return getItem(objectPath).getLabel();
}
*/
/**
* Get the user specified attributes of an item.
*
* NOTE:
* The attributes can contain an additional 'xdg:schema' key-value pair.
*
*
* @param objectPath The DBus object path of the item
*
* @return item attributes
*/
/*
public Map getAttributes(String objectPath) {
unlock();
return getItem(objectPath).getAttributes();
}
*/
/**
* Get the object paths of items with given attributes.
*
* @param attributes The attributes of the secret
*
* @return object paths
*/
public List getItems(Map attributes) {
unlock();
List objects = collection.searchItems(attributes);
if (objects != null && !objects.isEmpty()) {
return Static.Convert.toStrings(objects);
} else {
return null;
}
}
/**
* Get the secret of the item.
*
* @param objectPath The DBus object path of the item
*
* @return plain chars
*/
public char[] getSecret(String objectPath) {
unlock();
final Item item = getItem(objectPath);
char[] decrypted = null;
try (final Secret secret = item.getSecret(session.getPath())) {
decrypted = encryption.decrypt(secret);
} catch (NoSuchPaddingException | NoSuchAlgorithmException | InvalidAlgorithmParameterException
| InvalidKeyException | BadPaddingException | IllegalBlockSizeException ex) {
// log.error(e.toString(), e.getCause());
}
return decrypted;
}
/**
* Get the secrets from this collection.
*
* @return Mapping of DBus object paths and plain chars
* @throws AccessControlException if user is prompted and refuses.
*/
/*
public Map getSecrets() throws AccessControlException {
getUserPermission();
List items = collection.getItems();
Map passwords = new HashMap<>();
for (ObjectPath item : items) {
String path = item.getPath();
passwords.put(path, getSecret(path));
}
return passwords;
}
*/
/**
* Delete an item from this collection.
*
* @param objectPath The DBus object path of the item
* @throws AccessControlException if user is prompted and refuses.
*/
public void deleteItem(String objectPath) throws AccessControlException {
//getUserPermission();
Item item = getItem(objectPath);
ObjectPath promptPath = item.delete();
performPrompt(promptPath);
}
/**
* Delete specified items from this collection.
*
* @param objectPaths The DBus object paths of the items
* @throws AccessControlException if user is prompted and refuses.
*/
/*
public void deleteItems(List objectPaths) throws AccessControlException {
for (String item : objectPaths) {
deleteItem(item);
}
}
*/
}