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/*
* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2010-2014 Thialfihar <thi@thialfihar.org>
*
* 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 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 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 org.sufficientlysecure.keychain.helper;
import android.content.Context;
import android.content.SharedPreferences;
import org.spongycastle.bcpg.HashAlgorithmTags;
import org.spongycastle.openpgp.PGPEncryptedData;
import org.sufficientlysecure.keychain.Constants;
import java.util.Vector;
/**
* Singleton Implementation of a Preference Helper
*/
public class Preferences {
private static Preferences sPreferences;
private SharedPreferences mSharedPreferences;
public static synchronized Preferences getPreferences(Context context) {
return getPreferences(context, false);
}
public static synchronized Preferences getPreferences(Context context, boolean forceNew) {
if (sPreferences == null || forceNew) {
sPreferences = new Preferences(context);
}
return sPreferences;
}
private Preferences(Context context) {
mSharedPreferences = context.getSharedPreferences("APG.main", Context.MODE_PRIVATE);
}
public String getLanguage() {
return mSharedPreferences.getString(Constants.Pref.LANGUAGE, "");
}
public void setLanguage(String value) {
SharedPreferences.Editor editor = mSharedPreferences.edit();
editor.putString(Constants.Pref.LANGUAGE, value);
editor.commit();
}
public long getPassphraseCacheTtl() {
int ttl = mSharedPreferences.getInt(Constants.Pref.PASSPHRASE_CACHE_TTL, 180);
// fix the value if it was set to "never" in previous versions, which currently is not
// supported
if (ttl == 0) {
ttl = 180;
}
return (long) ttl;
}
public void setPassphraseCacheTtl(int value) {
SharedPreferences.Editor editor = mSharedPreferences.edit();
editor.putInt(Constants.Pref.PASSPHRASE_CACHE_TTL, value);
editor.commit();
}
public int getDefaultEncryptionAlgorithm() {
return mSharedPreferences.getInt(Constants.Pref.DEFAULT_ENCRYPTION_ALGORITHM,
PGPEncryptedData.AES_256);
}
public void setDefaultEncryptionAlgorithm(int value) {
SharedPreferences.Editor editor = mSharedPreferences.edit();
editor.putInt(Constants.Pref.DEFAULT_ENCRYPTION_ALGORITHM, value);
editor.commit();
}
public int getDefaultHashAlgorithm() {
return mSharedPreferences.getInt(Constants.Pref.DEFAULT_HASH_ALGORITHM,
HashAlgorithmTags.SHA512);
}
public void setDefaultHashAlgorithm(int value) {
SharedPreferences.Editor editor = mSharedPreferences.edit();
editor.putInt(Constants.Pref.DEFAULT_HASH_ALGORITHM, value);
editor.commit();
}
public int getDefaultMessageCompression() {
return mSharedPreferences.getInt(Constants.Pref.DEFAULT_MESSAGE_COMPRESSION,
Constants.choice.compression.zlib);
}
public void setDefaultMessageCompression(int value) {
SharedPreferences.Editor editor = mSharedPreferences.edit();
editor.putInt(Constants.Pref.DEFAULT_MESSAGE_COMPRESSION, value);
editor.commit();
}
public int getDefaultFileCompression() {
return mSharedPreferences.getInt(Constants.Pref.DEFAULT_FILE_COMPRESSION,
Constants.choice.compression.none);
}
public void setDefaultFileCompression(int value) {
SharedPreferences.Editor editor = mSharedPreferences.edit();
editor.putInt(Constants.Pref.DEFAULT_FILE_COMPRESSION, value);
editor.commit();
}
public boolean getDefaultAsciiArmor() {
return mSharedPreferences.getBoolean(Constants.Pref.DEFAULT_ASCII_ARMOR, false);
}
public void setDefaultAsciiArmor(boolean value) {
SharedPreferences.Editor editor = mSharedPreferences.edit();
editor.putBoolean(Constants.Pref.DEFAULT_ASCII_ARMOR, value);
editor.commit();
}
public boolean isFirstTime() {
return mSharedPreferences.getBoolean(Constants.Pref.FIRST_TIME, true);
}
public void setFirstTime(boolean value) {
SharedPreferences.Editor editor = mSharedPreferences.edit();
editor.putBoolean(Constants.Pref.FIRST_TIME, value);
editor.commit();
}
public String[] getKeyServers() {
String rawData = mSharedPreferences.getString(Constants.Pref.KEY_SERVERS,
Constants.Defaults.KEY_SERVERS);
Vector<String> servers = new Vector<String>();
String chunks[] = rawData.split(",");
for (String c : chunks) {
String tmp = c.trim();
if (tmp.length() > 0) {
servers.add(tmp);
}
}
return servers.toArray(chunks);
}
public void setKeyServers(String[] value) {
SharedPreferences.Editor editor = mSharedPreferences.edit();
String rawData = "";
for (String v : value) {
String tmp = v.trim();
if (tmp.length() == 0) {
continue;
}
if (!"".equals(rawData)) {
rawData += ",";
}
rawData += tmp;
}
editor.putString(Constants.Pref.KEY_SERVERS, rawData);
editor.commit();
}
public void updateKeyServers() {
if (mSharedPreferences.getInt(Constants.Pref.KEY_SERVERS_DEFAULT_VERSION, 0) !=
Constants.Defaults.KEY_SERVERS_VERSION) {
String[] servers = getKeyServers();
for (int i = 0; i < servers.length; i++) {
if (servers[i].equals("pool.sks-keyservers.net")) {
servers[i] = "hkps://hkps.pool.sks-keyservers.net";
} else if (servers[i].equals("pgp.mit.edu")) {
servers[i] = "hkps://pgp.mit.edu";
}
}
setKeyServers(servers);
mSharedPreferences.edit()
.putInt(Constants.Pref.KEY_SERVERS_DEFAULT_VERSION, Constants.Defaults.KEY_SERVERS_VERSION)
.commit();
}
}
public void setConcealPgpApplication(boolean conceal) {
SharedPreferences.Editor editor = mSharedPreferences.edit();
editor.putBoolean(Constants.Pref.CONCEAL_PGP_APPLICATION, conceal);
editor.commit();
}
public boolean getConcealPgpApplication() {
return mSharedPreferences.getBoolean(Constants.Pref.CONCEAL_PGP_APPLICATION, false);
}
}
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