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package org.netbeans.modules.keyring.kde;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.netbeans.spi.keyring.KeyringProvider;
/**
*
* @author psychollek, ynov
*/
public class KWalletProvider implements KeyringProvider{
private static final Logger logger = Logger.getLogger(KWalletProvider.class.getName());
private char[] handler = "0".toCharArray();
private boolean timeoutHappened = false;
private char[] defaultLocalWallet = "kdewallet".toCharArray();
@Override
public boolean enabled(){
if (Boolean.getBoolean("netbeans.keyring.no.native")) {
logger.fine("native keyring integration disabled");
return false;
}
CommandResult result = runCommand("isEnabled");
if(new String(result.retVal).equals("true")) {
return updateHandler();
}
return false;
}
@Override
public char[] read(String key){
if (updateHandler()){
CommandResult result = runCommand("readPassword", handler, getApplicationName(), key.toCharArray(), getApplicationName());
if (result.exitCode != 0){
warning("read action returned not 0 exitCode");
}
return result.retVal.length > 0 ? result.retVal : null;
}
return null;
//throw new KwalletException("read");
}
@Override
public void save(String key, char[] password, String description){
//description is forgoten ! kdewallet dosen't have any facility to store
//it by default and I don't want to do it by adding new fields to kwallet
if (updateHandler()){
CommandResult result = runCommand("writePassword", handler , getApplicationName()
, key.toCharArray(), password , getApplicationName());
if (result.exitCode != 0 || (new String(result.retVal)).equals("-1")){
warning("save action failed");
}
return;
}
//throw new KwalletException("save");
}
@Override
public void delete(String key){
if (updateHandler()){
CommandResult result = runCommand("removeEntry" ,handler,
getApplicationName() , key.toCharArray() , getApplicationName());
if (result.exitCode != 0 || (new String(result.retVal)).equals("-1")){
warning("delete action failed");
}
return;
}
//throw new KwalletException("delete");
}
private boolean updateHandler(){
if(timeoutHappened) {
return false;
}
handler = new String(handler).equals("")? "0".toCharArray() : handler;
CommandResult result = runCommand("isOpen",handler);
if(new String(result.retVal).equals("true")){
return true;
}
char[] localWallet = defaultLocalWallet;
result = runCommand("localWallet");
if(result.exitCode == 0) {
localWallet = result.retVal;
}
if(new String(localWallet).contains(".service")) {
//Temporary workaround for the bug in kdelibs/kdeui/util/kwallet.cpp
//The bug was fixed http://svn.reviewboard.kde.org/r/5885/diff/
//but many people currently use buggy kwallet
return false;
}
result = runCommand("open", localWallet , "0".toCharArray(), getApplicationName());
if(result.exitCode == 2) {
warning("time out happened while accessing KWallet");
//don't try to open KWallet anymore until bug https://bugs.kde.org/show_bug.cgi?id=259229 is fixed
timeoutHappened = true;
return false;
}
if(result.exitCode != 0 || new String(result.retVal).equals("-1")) {
warning("failed to access KWallet");
return false;
}
handler = result.retVal;
return true;
}
private CommandResult runCommand(String command,char[]... commandArgs) {
String[] argv = new String[commandArgs.length+4];
argv[0] = "qdbus";
argv[1] = "org.kde.kwalletd";
argv[2] = "/modules/kwalletd";
argv[3] = "org.kde.KWallet."+command;
for (int i = 0; i < commandArgs.length; i++) {
//unfortunatelly I cannot pass char[] to the exec in any way - so this poses a security issue with passwords in String() !
//TODO: find a way to avoid changing char[] into String
argv[i+4] = new String(commandArgs[i]);
}
Runtime rt = Runtime.getRuntime();
String retVal = "";
String errVal = "";
int exitCode = 0;
try {
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, "executing {0}", Arrays.toString(argv));
}
Process pr = rt.exec(argv);
try (BufferedReader input = new BufferedReader(new InputStreamReader(pr.getInputStream()))) {
String line;
while((line = input.readLine()) != null) {
if (!retVal.equals("")){
retVal = retVal.concat("\n");
}
retVal = retVal.concat(line);
}
}
try (BufferedReader input = new BufferedReader(new InputStreamReader(pr.getErrorStream()))) {
String line;
while((line = input.readLine()) != null) {
if (!errVal.equals("")){
errVal = errVal.concat("\n");
}
errVal = errVal.concat(line);
}
}
exitCode = pr.waitFor();
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, "application exit with code {0} for commandString: {1}; errVal: {2}",
new Object[]{exitCode, Arrays.toString(argv), errVal});
}
} catch (InterruptedException ex) {
logger.log(Level.FINE,
"exception thrown while invoking the command \""+Arrays.toString(argv)+"\"",
ex);
} catch (IOException ex) {
logger.log(Level.FINE,
"exception thrown while invoking the command \""+Arrays.toString(argv)+"\"",
ex);
}
return new CommandResult(exitCode, retVal.trim().toCharArray(), errVal.trim());
}
private char[] getApplicationName(){
return "JOSM".toCharArray(); // NOI18N
}
private void warning(String descr) {
logger.log(Level.WARNING, "Something went wrong: {0}", descr);
}
private class CommandResult {
private int exitCode;
private char[] retVal;
public CommandResult(int exitCode, char[] retVal, String errVal) {
this.exitCode = exitCode;
this.retVal = retVal;
}
}
}