tor-android/src/org/torproject/android/Orbot.java

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/* Copyright (c) 2009, Nathan Freitas, Orbot / The Guardian Project - http://openideals.com/guardian */
/* See LICENSE for licensing information */
package org.torproject.android;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.StringTokenizer;
import org.torproject.android.service.ITorService;
import org.torproject.android.service.ITorServiceCallback;
import org.torproject.android.service.TorServiceConstants;
import org.torproject.android.service.TorTransProxy;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.NotificationManager;
import android.app.ProgressDialog;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.RemoteException;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageView;
import android.widget.TextView;
public class Orbot extends Activity implements OnClickListener, TorConstants
{
/* Useful UI bits */
private TextView txtMessageLog = null; //the full screen log view of Tor control messages
private TextView lblStatus = null; //the main text display widget
private ImageView imgStatus = null; //the main touchable image for activating Orbot
// private ProgressDialog progressDialog;
private MenuItem mItemOnOff = null;
/* Some tracking bits */
private int torStatus = STATUS_READY; //latest status reported from the tor service
private int currentView = 0; //the currently displayed UI view
private StringBuffer logBuffer = new StringBuffer(); //the output of the service log messages
/* Tor Service interaction */
/* The primary interface we will be calling on the service. */
ITorService mService = null;
private boolean autoStartOnBind = false;
Orbot mOrbot = null;
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mOrbot = this;
setTheme(android.R.style.Theme_Black_NoTitleBar);
//setTitle(getString(R.string.app_name) + ' ' + getString(R.string.app_version));
showMain();
}
/*
* Create the UI Options Menu (non-Javadoc)
* @see android.app.Activity#onCreateOptionsMenu(android.view.Menu)
*/
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
MenuItem mItem = null;
mItemOnOff = menu.add(0, 1, Menu.NONE, getString(R.string.menu_start));
mItemOnOff.setIcon(android.R.drawable.ic_menu_share);
mItemOnOff.setAlphabeticShortcut('t');
mItem = menu.add(0, 4, Menu.NONE, getString(R.string.menu_settings));
mItem.setIcon(R.drawable.ic_menu_register);
mItem = menu.add(0, 7, Menu.NONE, getString(R.string.menu_verify));
mItem.setIcon(R.drawable.ic_menu_check);
mItem = menu.add(0,6, Menu.NONE, getString(R.string.menu_log));
mItem.setIcon(R.drawable.ic_menu_reports);
mItem = menu.add(0, 3, Menu.NONE, getString(R.string.menu_info));
mItem.setIcon(R.drawable.ic_menu_about);
mItem = menu.add(0, 8, Menu.NONE, getString(R.string.menu_exit));
mItem.setIcon(R.drawable.ic_menu_exit);
return true;
}
/* When a menu item is selected launch the appropriate view or activity
* (non-Javadoc)
* @see android.app.Activity#onMenuItemSelected(int, android.view.MenuItem)
*/
public boolean onMenuItemSelected(int featureId, MenuItem item) {
super.onMenuItemSelected(featureId, item);
if (item.getItemId() == 1)
{
try
{
if (mService == null)
{
}
else if (mService.getStatus() == STATUS_READY)
{
mItemOnOff.setTitle(R.string.menu_stop);
startTor();
}
else
{
mItemOnOff.setTitle(R.string.menu_start);
stopTor();
}
}
catch (RemoteException re)
{
Log.w(TAG, "Unable to start/top Tor from menu UI", re);
}
}
else if (item.getItemId() == 4)
{
showSettings();
}
else if (item.getItemId() == 6)
{
showMessageLog();
}
else if (item.getItemId() == 3)
{
showHelp();
}
else if (item.getItemId() == 7)
{
doTorCheck();
}
else if (item.getItemId() == 8)
{
//exit app
doExit();
}
return true;
}
private void doExit ()
{
try {
stopTor();
unbindService();
stopService(new Intent(ITorService.class.getName()));
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.cancelAll();
} catch (RemoteException e) {
Log.w(TAG, e);
}
finish();
}
/* Return to the main view when the back key is pressed
* (non-Javadoc)
* @see android.app.Activity#onKeyDown(int, android.view.KeyEvent)
*/
public boolean onKeyDown(int keyCode, KeyEvent event){
if(keyCode==KeyEvent.KEYCODE_BACK){
if(currentView != R.layout.layout_main){
showMain ();
return true;
}
else{
return super.onKeyDown(keyCode, event);
}
}
return super.onKeyDown(keyCode, event);
}
/* (non-Javadoc)
* @see android.app.Activity#onPause()
*/
protected void onPause() {
super.onPause();
}
public void onSaveInstanceState(Bundle savedInstanceState) {
// Save UI state changes to the savedInstanceState.
// This bundle will be passed to onCreate if the process is
// killed and restarted.
savedInstanceState.putString("log", logBuffer.toString());
// etc.
super.onSaveInstanceState(savedInstanceState);
}
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
// Restore UI state from the savedInstanceState.
// This bundle has also been passed to onCreate.
String logText = savedInstanceState.getString("log");
logBuffer.append(logText);
}
private void doTorCheck ()
{
DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
switch (which){
case DialogInterface.BUTTON_POSITIVE:
openBrowser(URL_TOR_CHECK);
break;
case DialogInterface.BUTTON_NEGATIVE:
//do nothing
break;
}
}
};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(R.string.tor_check).setPositiveButton(R.string.btn_okay, dialogClickListener)
.setNegativeButton(R.string.btn_cancel, dialogClickListener).show();
}
private void enableHiddenServicePort (int hsPort)
{
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(mOrbot);
Editor pEdit = prefs.edit();
String hsPortString = prefs.getString("pref_hs_ports", "");
if (hsPortString.length() > 0 && hsPortString.indexOf(hsPort+"")==-1)
hsPortString += ',' + hsPort;
else
hsPortString = hsPort + "";
pEdit.putString("pref_hs_ports", hsPortString);
pEdit.putBoolean("pref_hs_enable", true);
pEdit.commit();
try {
processSettings();
String onionHostname = getHiddenServiceHostname();
Intent nResult = new Intent();
nResult.putExtra("hs_host", onionHostname);
setResult(RESULT_OK, nResult);
} catch (RemoteException e) {
Log.e(TAG, "error accessing hidden service", e);
}
}
/* (non-Javadoc)
* @see android.app.Activity#onResume()
*/
protected void onResume() {
super.onResume();
String action = getIntent().getAction();
if (action != null)
{
if (action.equals("org.torproject.android.REQUEST_HS_PORT"))
{
DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
switch (which){
case DialogInterface.BUTTON_POSITIVE:
int hsPort = getIntent().getIntExtra("hs_port", -1);
enableHiddenServicePort (hsPort);
finish();
break;
case DialogInterface.BUTTON_NEGATIVE:
//No button clicked
finish();
break;
}
}
};
int hsPort = getIntent().getIntExtra("hs_port", -1);
String requestMsg = "An app wants to open a server port (" + hsPort + ") to the Tor network. This is safe if you trust the app.";
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(requestMsg).setPositiveButton("Allow", dialogClickListener)
.setNegativeButton("Deny", dialogClickListener).show();
}
else if (action.equals("org.torproject.android.START_TOR"))
{
autoStartOnBind = true;
if (mService == null)
bindService();
}
}
else
{
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.cancelAll();
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(mOrbot);
boolean showWizard = prefs.getBoolean("show_wizard",true);
if (showWizard)
{
Editor pEdit = prefs.edit();
pEdit.putBoolean("show_wizard",false);
pEdit.commit();
showHelp();
}
}
}
/* (non-Javadoc)
* @see android.app.Activity#onStart()
*/
protected void onStart() {
super.onStart();
//if Tor binary is not running, then start the service up
startService(new Intent(INTENT_TOR_SERVICE));
bindService ();
updateStatus ("");
}
/* (non-Javadoc)
* @see android.app.Activity#onStop()
*/
protected void onStop() {
super.onStop();
unbindService();
}
/*
* Show the main form UI
*/
private void showMain ()
{
bindService(); //connect the UI activity to the remote service
currentView = R.layout.layout_main;
setContentView(currentView);
//add touch listeners for the image and the text label
findViewById(R.id.imgStatus).setOnClickListener(this);
findViewById(R.id.lblStatus).setOnClickListener(this);
lblStatus = (TextView)findViewById(R.id.lblStatus);
imgStatus = (ImageView)findViewById(R.id.imgStatus);
updateStatus("");
}
/*
* Launch the system activity for Uri viewing with the provided url
*/
private void openBrowser(String url)
{
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
}
/*
* Show the help view - a popup dialog
*/
private void showHelp ()
{
new WizardHelper(this).showWizard();
}
/*
* Show the message log UI
*/
private void showMessageLog ()
{
currentView = R.layout.layout_log;
setContentView(currentView);
txtMessageLog = (TextView)findViewById(R.id.messageLog);
txtMessageLog.setClickable(true);
txtMessageLog.setText(logBuffer.toString());
}
/*
* Load the basic settings application to display torrc
*/
private void showSettings ()
{
startActivityForResult(new Intent(this, SettingsPreferences.class), 1);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 1)
{
try {
processSettings();
} catch (RemoteException e) {
e.printStackTrace();
}
}
}
private void processSettings () throws RemoteException
{
try
{
if (mService == null)
return; //nothing to do if the service isn't connected yet
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
boolean useBridges = prefs.getBoolean(PREF_BRIDGES_ENABLED, false);
//boolean autoUpdateBridges = prefs.getBoolean(PREF_BRIDGES_UPDATED, false);
boolean becomeRelay = prefs.getBoolean(PREF_OR, false);
boolean ReachableAddresses = prefs.getBoolean(PREF_REACHABLE_ADDRESSES,false);
boolean enableHiddenServices = prefs.getBoolean("pref_hs_enable", false);
boolean enableTransparentProxy = prefs.getBoolean(PREF_TRANSPARENT, false);
mService.updateTransProxy();
String bridgeList = prefs.getString(PREF_BRIDGES_LIST,"");
if (useBridges)
{
if (bridgeList == null || bridgeList.length() == 0)
{
showAlert("Bridge Error","In order to use the bridge feature, you must enter at least one bridge IP address." +
"Send an email to bridges@torproject.org with the line \"get bridges\" by itself in the body of the mail from a gmail account.");
return;
}
mService.updateConfiguration("UseBridges", "1", false);
String bridgeDelim = "\n";
if (bridgeList.indexOf(",") != -1)
{
bridgeDelim = ",";
}
StringTokenizer st = new StringTokenizer(bridgeList,bridgeDelim);
while (st.hasMoreTokens())
{
mService.updateConfiguration("bridge", st.nextToken(), false);
}
mService.updateConfiguration("UpdateBridgesFromAuthority", "0", false);
}
else
{
mService.updateConfiguration("UseBridges", "0", false);
}
try
{
if (ReachableAddresses)
{
String ReachableAddressesPorts =
prefs.getString(PREF_REACHABLE_ADDRESSES_PORTS, "*:80,*:443");
mService.updateConfiguration("ReachableAddresses", ReachableAddressesPorts, false);
}
else
{
mService.updateConfiguration("ReachableAddresses", "", false);
}
}
catch (Exception e)
{
showAlert("Config Error","Your ReachableAddresses settings caused an exception!");
}
try
{
if (becomeRelay && (!useBridges) && (!ReachableAddresses))
{
int ORPort = Integer.parseInt(prefs.getString(PREF_OR_PORT, "9001"));
String nickname = prefs.getString(PREF_OR_NICKNAME, "Orbot");
mService.updateConfiguration("ORPort", ORPort + "", false);
mService.updateConfiguration("Nickname", nickname, false);
mService.updateConfiguration("ExitPolicy", "reject *:*", false);
}
else
{
mService.updateConfiguration("ORPort", "", false);
mService.updateConfiguration("Nickname", "", false);
mService.updateConfiguration("ExitPolicy", "", false);
}
}
catch (Exception e)
{
showAlert("Uh-oh!","Your relay settings caused an exception!");
return;
}
if (enableHiddenServices)
{
mService.updateConfiguration("HiddenServiceDir","/data/data/org.torproject.android/", false);
String hsPorts = prefs.getString("pref_hs_ports","");
StringTokenizer st = new StringTokenizer (hsPorts,",");
String hsPortConfig = null;
while (st.hasMoreTokens())
{
hsPortConfig = st.nextToken();
if (hsPortConfig.indexOf(":")==-1) //setup the port to localhost if not specifed
{
hsPortConfig = hsPortConfig + " 127.0.0.1:" + hsPortConfig;
}
mService.updateConfiguration("HiddenServicePort",hsPortConfig, false);
}
//force save now so the hostname file gets generated
mService.saveConfiguration();
String onionHostname = getHiddenServiceHostname();
if (onionHostname != null)
{
Editor pEdit = prefs.edit();
pEdit.putString("pref_hs_hostname",onionHostname);
pEdit.commit();
}
}
else
{
mService.updateConfiguration("HiddenServiceDir","", false);
}
mService.saveConfiguration();
}
catch (Exception e)
{
showAlert("Uh-oh!","There was an error updating your settings");
Log.w(TAG, "processSettings()", e);
return;
}
}
private String getHiddenServiceHostname ()
{
String appHome = "/data/data/" + TorServiceConstants.TOR_APP_USERNAME + "/";
File file = new File(appHome, "hostname");
try {
String onionHostname = Utils.readString(new FileInputStream(file));
return onionHostname.trim();
} catch (FileNotFoundException e) {
Log.d(TAG, "unable to read onion hostname file",e);
return null;
}
}
private void showAlert(String title, String msg)
{
new AlertDialog.Builder(this)
.setIcon(R.drawable.icon)
.setTitle(title)
.setMessage(msg)
.setPositiveButton(android.R.string.ok, null)
.show();
}
/*
* Set the state of the running/not running graphic and label
*/
public void updateStatus (String torServiceMsg)
{
try
{
if (mService != null)
torStatus = mService.getStatus();
if (imgStatus != null)
{
if (torStatus == STATUS_ON)
{
imgStatus.setImageResource(R.drawable.toron);
imgStatus.clearAnimation();
String lblMsg = getString(R.string.status_activated) + ": " + torServiceMsg;
lblStatus.setText(lblMsg);
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(mOrbot);
boolean showWizard = prefs.getBoolean("connect_first_time",true);
if (showWizard)
{
Editor pEdit = prefs.edit();
pEdit.putBoolean("connect_first_time",false);
pEdit.commit();
showAlert(getString(R.string.status_activated),getString(R.string.connect_first_time));
}
boolean enableHiddenServices = prefs.getBoolean("pref_hs_enable", false);
if (enableHiddenServices)
{
String onionHostname = getHiddenServiceHostname();
if (onionHostname != null)
{
Editor pEdit = prefs.edit();
pEdit.putString("pref_hs_hostname",onionHostname);
pEdit.commit();
}
}
}
else if (torStatus == STATUS_CONNECTING)
{
imgStatus.setImageResource(R.drawable.torstarting);
lblStatus.setText(torServiceMsg);
int idx = torServiceMsg.indexOf("%");
if (idx != -1)
{
String pComp = torServiceMsg.substring(idx-2,idx).trim();
int ipComp = Integer.parseInt(pComp);
// progressDialog.setProgress(ipComp);
}
}
else if (torStatus == STATUS_OFF)
{
imgStatus.setImageResource(R.drawable.torstopping);
imgStatus.clearAnimation();
lblStatus.setText(getString(R.string.status_shutting_down));
}
else
{
imgStatus.clearAnimation();
imgStatus.setImageResource(R.drawable.toroff);
lblStatus.setText(getString(R.string.status_disabled));
}
}
}
catch (RemoteException e)
{
e.printStackTrace();
}
}
private void startTor () throws RemoteException
{
mService.setProfile(PROFILE_ON); //this means turn on
imgStatus.setImageResource(R.drawable.torstarting);
lblStatus.setText(getString(R.string.status_starting_up));
Message msg = mHandler.obtainMessage(ENABLE_TOR_MSG);
mHandler.sendMessage(msg);
logBuffer = new StringBuffer();
}
private void stopTor () throws RemoteException
{
mService.setProfile(PROFILE_ONDEMAND); //these means turn off
Message msg = mHandler.obtainMessage(DISABLE_TOR_MSG);
mHandler.sendMessage(msg);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
try
{
if (mService == null)
{
}
else if (mService.getStatus() == STATUS_READY)
{
if (event.getAction() == MotionEvent.ACTION_UP)
{
startTor();
}
}
else
{
if (event.getAction() == MotionEvent.ACTION_DOWN)
{
stopTor();
}
}
}
catch (Exception e)
{
Log.d(TAG,"error onclick",e);
}
return super.onTouchEvent(event);
}
/*
* (non-Javadoc)
* @see android.view.View.OnClickListener#onClick(android.view.View)
*/
public void onClick(View view) {
// the start button
// if (view.getId()==R.id.imgStatus || view.getId()==R.id.lblStatus)
// {
try
{
if (mService == null)
{
}
else if (mService.getStatus() == STATUS_READY)
{
startTor();
}
else
{
stopTor();
}
}
catch (Exception e)
{
Log.d(TAG,"error onclick",e);
}
// }
}
/**
* This implementation is used to receive callbacks from the remote
* service.
*/
private ITorServiceCallback mCallback = new ITorServiceCallback.Stub() {
/**
* This is called by the remote service regularly to tell us about
* new values. Note that IPC calls are dispatched through a thread
* pool running in each process, so the code executing here will
* NOT be running in our main thread like most other things -- so,
* to update the UI, we need to use a Handler to hop over there.
*/
public void statusChanged(String value) {
Message msg = mHandler.obtainMessage(STATUS_MSG);
msg.getData().putString(HANDLER_TOR_MSG, value);
mHandler.sendMessage(msg);
}
@Override
public void logMessage(String value) throws RemoteException {
Message msg = mHandler.obtainMessage(LOG_MSG);
msg.getData().putString(HANDLER_TOR_MSG, value);
mHandler.sendMessage(msg);
}
};
private static final int STATUS_MSG = 1;
private static final int ENABLE_TOR_MSG = 2;
private static final int DISABLE_TOR_MSG = 3;
private static final int LOG_MSG = 4;
private Handler mHandler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case STATUS_MSG:
String torServiceMsg = (String)msg.getData().getString(HANDLER_TOR_MSG);
logBuffer.append(torServiceMsg);
logBuffer.append('\n');
if (torServiceMsg.length() > 0)
updateStatus(torServiceMsg);
break;
case LOG_MSG:
String torLogMsg = (String)msg.getData().getString(HANDLER_TOR_MSG);
logBuffer.append(torLogMsg);
logBuffer.append('\n');
if (txtMessageLog != null)
{
txtMessageLog.append(torLogMsg + '\n');
}
break;
case ENABLE_TOR_MSG:
break;
case DISABLE_TOR_MSG:
break;
default:
super.handleMessage(msg);
}
}
};
/**
* Class for interacting with the main interface of the service.
*/
private ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className,
IBinder service) {
// This is called when the connection with the service has been
// established, giving us the service object we can use to
// interact with the service. We are communicating with our
// service through an IDL interface, so get a client-side
// representation of that from the raw service object.
mService = ITorService.Stub.asInterface(service);
updateStatus ("");
// We want to monitor the service for as long as we are
// connected to it.
try {
mService.registerCallback(mCallback);
if (autoStartOnBind)
{
autoStartOnBind = false;
startTor();
}
} catch (RemoteException e) {
// In this case the service has crashed before we could even
// do anything with it; we can count on soon being
// disconnected (and then reconnected if it can be restarted)
// so there is no need to do anything here.
Log.d(TAG,"error registering callback to service",e);
}
}
public void onServiceDisconnected(ComponentName className) {
// This is called when the connection with the service has been
// unexpectedly disconnected -- that is, its process crashed.
mService = null;
}
};
boolean mIsBound = false;
private void bindService ()
{
bindService(new Intent(ITorService.class.getName()),
mConnection, Context.BIND_AUTO_CREATE);
mIsBound = true;
}
private void unbindService ()
{
if (mIsBound) {
// If we have received the service, and hence registered with
// it, then now is the time to unregister.
if (mService != null) {
try {
mService.unregisterCallback(mCallback);
} catch (RemoteException e) {
// There is nothing special we need to do if the service
// has crashed.
}
}
// Detach our existing connection.
unbindService(mConnection);
mIsBound = false;
}
}
}