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Wonerujo/app/src/main/java/com/m2049r/xmrwallet/service/WalletService.java

593 lines
24 KiB

/*
* Copyright (c) 2017 m2049r
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.m2049r.xmrwallet.service;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.Binder;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.Process;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.core.app.NotificationCompat;
import com.m2049r.xmrwallet.R;
import com.m2049r.xmrwallet.WalletActivity;
import com.m2049r.xmrwallet.data.TxData;
import com.m2049r.xmrwallet.model.PendingTransaction;
import com.m2049r.xmrwallet.model.Wallet;
import com.m2049r.xmrwallet.model.WalletListener;
import com.m2049r.xmrwallet.model.WalletManager;
import com.m2049r.xmrwallet.util.Helper;
import com.m2049r.xmrwallet.util.LocaleHelper;
import timber.log.Timber;
public class WalletService extends Service {
public static boolean Running = false;
final static int NOTIFICATION_ID = 2049;
final static String CHANNEL_ID = "m_service";
public static final String REQUEST_WALLET = "wallet";
public static final String REQUEST = "request";
public static final String REQUEST_CMD_LOAD = "load";
public static final String REQUEST_CMD_LOAD_PW = "walletPassword";
public static final String REQUEST_CMD_STORE = "store";
public static final String REQUEST_CMD_TX = "createTX";
public static final String REQUEST_CMD_TX_DATA = "data";
public static final String REQUEST_CMD_TX_TAG = "tag";
public static final String REQUEST_CMD_SWEEP = "sweepTX";
public static final String REQUEST_CMD_SEND = "send";
public static final String REQUEST_CMD_SEND_NOTES = "notes";
public static final int START_SERVICE = 1;
public static final int STOP_SERVICE = 2;
private MyWalletListener listener = null;
private class MyWalletListener implements WalletListener {
boolean updated = true;
void start() {
Timber.d("MyWalletListener.start()");
Wallet wallet = getWallet();
if (wallet == null) throw new IllegalStateException("No wallet!");
wallet.setListener(this);
wallet.startRefresh();
}
void stop() {
Timber.d("MyWalletListener.stop()");
Wallet wallet = getWallet();
if (wallet == null) throw new IllegalStateException("No wallet!");
wallet.pauseRefresh();
wallet.setListener(null);
}
// WalletListener callbacks
public void moneySpent(String txId, long amount) {
Timber.d("moneySpent() %d @ %s", amount, txId);
}
public void moneyReceived(String txId, long amount) {
Timber.d("moneyReceived() %d @ %s", amount, txId);
}
public void unconfirmedMoneyReceived(String txId, long amount) {
Timber.d("unconfirmedMoneyReceived() %d @ %s", amount, txId);
}
private long lastBlockTime = 0;
private int lastTxCount = 0;
public void newBlock(long height) {
final Wallet wallet = getWallet();
if (wallet == null) throw new IllegalStateException("No wallet!");
// don't flood with an update for every block ...
if (lastBlockTime < System.currentTimeMillis() - 2000) {
lastBlockTime = System.currentTimeMillis();
Timber.d("newBlock() @ %d with observer %s", height, observer);
if (observer != null) {
boolean fullRefresh = false;
updateDaemonState(wallet, wallet.isSynchronized() ? height : 0);
if (!wallet.isSynchronized()) {
updated = true;
// we want to see our transactions as they come in
wallet.refreshHistory();
int txCount = wallet.getHistory().getCount();
if (txCount > lastTxCount) {
// update the transaction list only if we have more than before
lastTxCount = txCount;
fullRefresh = true;
}
}
if (observer != null)
observer.onRefreshed(wallet, fullRefresh);
}
}
}
public void updated() {
Timber.d("updated()");
Wallet wallet = getWallet();
if (wallet == null) throw new IllegalStateException("No wallet!");
updated = true;
}
public void refreshed() { // this means it's synced
Timber.d("refreshed()");
final Wallet wallet = getWallet();
if (wallet == null) throw new IllegalStateException("No wallet!");
wallet.setSynchronized();
if (updated) {
updateDaemonState(wallet, wallet.getBlockChainHeight());
wallet.refreshHistory();
if (observer != null) {
updated = !observer.onRefreshed(wallet, true);
}
}
}
}
private long lastDaemonStatusUpdate = 0;
private long daemonHeight = 0;
private Wallet.ConnectionStatus connectionStatus = Wallet.ConnectionStatus.ConnectionStatus_Disconnected;
private static final long STATUS_UPDATE_INTERVAL = 120000; // 120s (blocktime)
private void updateDaemonState(Wallet wallet, long height) {
long t = System.currentTimeMillis();
if (height > 0) { // if we get a height, we are connected
daemonHeight = height;
connectionStatus = Wallet.ConnectionStatus.ConnectionStatus_Connected;
lastDaemonStatusUpdate = t;
} else {
if (t - lastDaemonStatusUpdate > STATUS_UPDATE_INTERVAL) {
lastDaemonStatusUpdate = t;
// these calls really connect to the daemon - wasting time
daemonHeight = wallet.getDaemonBlockChainHeight();
if (daemonHeight > 0) {
// if we get a valid height, then obviously we are connected
connectionStatus = Wallet.ConnectionStatus.ConnectionStatus_Connected;
} else {
connectionStatus = Wallet.ConnectionStatus.ConnectionStatus_Disconnected;
}
}
}
}
public long getDaemonHeight() {
return this.daemonHeight;
}
public Wallet.ConnectionStatus getConnectionStatus() {
return this.connectionStatus;
}
/////////////////////////////////////////////
// communication back to client (activity) //
/////////////////////////////////////////////
// NB: This allows for only one observer, i.e. only a single activity bound here
private Observer observer = null;
public void setObserver(Observer anObserver) {
observer = anObserver;
Timber.d("setObserver %s", observer);
}
public interface Observer {
boolean onRefreshed(Wallet wallet, boolean full);
void onProgress(String text);
void onProgress(int n);
void onWalletStored(boolean success);
void onTransactionCreated(String tag, PendingTransaction pendingTransaction);
void onTransactionSent(String txid);
void onSendTransactionFailed(String error);
void onWalletStarted(Wallet.Status walletStatus);
void onWalletOpen(Wallet.Device device);
}
String progressText = null;
int progressValue = -1;
private void showProgress(String text) {
progressText = text;
if (observer != null) {
observer.onProgress(text);
}
}
private void showProgress(int n) {
progressValue = n;
if (observer != null) {
observer.onProgress(n);
}
}
public String getProgressText() {
return progressText;
}
public int getProgressValue() {
return progressValue;
}
//
public Wallet getWallet() {
return WalletManager.getInstance().getWallet();
}
/////////////////////////////////////////////
/////////////////////////////////////////////
private WalletService.ServiceHandler mServiceHandler;
private boolean errorState = false;
// Handler that receives messages from the thread
private final class ServiceHandler extends Handler {
ServiceHandler(Looper looper) {
super(looper);
}
@Override
public void handleMessage(Message msg) {
Timber.d("Handling %s", msg.arg2);
if (errorState) {
Timber.i("In error state.");
// also, we have already stopped ourselves
return;
}
switch (msg.arg2) {
case START_SERVICE: {
Bundle extras = msg.getData();
String cmd = extras.getString(REQUEST, null);
switch (cmd) {
case REQUEST_CMD_LOAD:
String walletId = extras.getString(REQUEST_WALLET, null);
String walletPw = extras.getString(REQUEST_CMD_LOAD_PW, null);
Timber.d("LOAD wallet %s", walletId);
if (walletId != null) {
showProgress(getString(R.string.status_wallet_loading));
showProgress(10);
Wallet.Status walletStatus = start(walletId, walletPw);
if (observer != null) observer.onWalletStarted(walletStatus);
if ((walletStatus == null) || !walletStatus.isOk()) {
errorState = true;
stop();
}
}
break;
case REQUEST_CMD_STORE: {
Wallet myWallet = getWallet();
if (myWallet == null) break;
Timber.d("STORE wallet: %s", myWallet.getName());
boolean rc = myWallet.store();
Timber.d("wallet stored: %s with rc=%b", myWallet.getName(), rc);
if (!rc) {
Timber.w("Wallet store failed: %s", myWallet.getStatus().getErrorString());
}
if (observer != null) observer.onWalletStored(rc);
break;
}
case REQUEST_CMD_TX: {
Wallet myWallet = getWallet();
if (myWallet == null) break;
Timber.d("CREATE TX for wallet: %s", myWallet.getName());
myWallet.disposePendingTransaction(); // remove any old pending tx
TxData txData = extras.getParcelable(REQUEST_CMD_TX_DATA);
String txTag = extras.getString(REQUEST_CMD_TX_TAG);
PendingTransaction pendingTransaction = myWallet.createTransaction(txData);
PendingTransaction.Status status = pendingTransaction.getStatus();
Timber.d("transaction status %s", status);
if (status != PendingTransaction.Status.Status_Ok) {
Timber.w("Create Transaction failed: %s", pendingTransaction.getErrorString());
}
if (observer != null) {
observer.onTransactionCreated(txTag, pendingTransaction);
} else {
myWallet.disposePendingTransaction();
}
break;
}
case REQUEST_CMD_SWEEP: {
Wallet myWallet = getWallet();
if (myWallet == null) break;
Timber.d("SWEEP TX for wallet: %s", myWallet.getName());
myWallet.disposePendingTransaction(); // remove any old pending tx
String txTag = extras.getString(REQUEST_CMD_TX_TAG);
PendingTransaction pendingTransaction = myWallet.createSweepUnmixableTransaction();
PendingTransaction.Status status = pendingTransaction.getStatus();
Timber.d("transaction status %s", status);
if (status != PendingTransaction.Status.Status_Ok) {
Timber.w("Create Transaction failed: %s", pendingTransaction.getErrorString());
}
if (observer != null) {
observer.onTransactionCreated(txTag, pendingTransaction);
} else {
myWallet.disposePendingTransaction();
}
break;
}
case REQUEST_CMD_SEND: {
Wallet myWallet = getWallet();
if (myWallet == null) break;
Timber.d("SEND TX for wallet: %s", myWallet.getName());
PendingTransaction pendingTransaction = myWallet.getPendingTransaction();
if (pendingTransaction == null) {
throw new IllegalArgumentException("PendingTransaction is null"); // die
}
if (pendingTransaction.getStatus() != PendingTransaction.Status.Status_Ok) {
Timber.e("PendingTransaction is %s", pendingTransaction.getStatus());
final String error = pendingTransaction.getErrorString();
myWallet.disposePendingTransaction(); // it's broken anyway
if (observer != null) observer.onSendTransactionFailed(error);
return;
}
final String txid = pendingTransaction.getFirstTxId(); // tx ids vanish after commit()!
boolean success = pendingTransaction.commit("", true);
if (success) {
myWallet.disposePendingTransaction();
if (observer != null) observer.onTransactionSent(txid);
String notes = extras.getString(REQUEST_CMD_SEND_NOTES);
if ((notes != null) && (!notes.isEmpty())) {
myWallet.setUserNote(txid, notes);
}
boolean rc = myWallet.store();
Timber.d("wallet stored: %s with rc=%b", myWallet.getName(), rc);
if (!rc) {
Timber.w("Wallet store failed: %s", myWallet.getStatus().getErrorString());
}
if (observer != null) observer.onWalletStored(rc);
listener.updated = true;
} else {
final String error = pendingTransaction.getErrorString();
myWallet.disposePendingTransaction();
if (observer != null) observer.onSendTransactionFailed(error);
return;
}
break;
}
}
}
break;
case STOP_SERVICE:
stop();
break;
default:
Timber.e("UNKNOWN %s", msg.arg2);
}
}
}
@Override
public void onCreate() {
// We are using a HandlerThread and a Looper to avoid loading and closing
// concurrency
MoneroHandlerThread thread = new MoneroHandlerThread("WalletService",
Process.THREAD_PRIORITY_BACKGROUND);
thread.start();
// Get the HandlerThread's Looper and use it for our Handler
final Looper serviceLooper = thread.getLooper();
mServiceHandler = new WalletService.ServiceHandler(serviceLooper);
Timber.d("Service created");
}
@Override
public void onDestroy() {
Timber.d("onDestroy()");
if (this.listener != null) {
Timber.w("onDestroy() with active listener");
// no need to stop() here because the wallet closing should have been triggered
// through onUnbind() already
}
}
@Override
protected void attachBaseContext(Context context) {
super.attachBaseContext(LocaleHelper.setPreferredLocale(context));
}
public class WalletServiceBinder extends Binder {
public WalletService getService() {
return WalletService.this;
}
}
private final IBinder mBinder = new WalletServiceBinder();
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Running = true;
// when the activity starts the service, it expects to start it for a new wallet
// the service is possibly still occupied with saving the last opened wallet
// so we queue the open request
// this should not matter since the old activity is not getting updates
// and the new one is not listening yet (although it will be bound)
Timber.d("onStartCommand()");
// For each start request, send a message to start a job and deliver the
// start ID so we know which request we're stopping when we finish the job
Message msg = mServiceHandler.obtainMessage();
msg.arg2 = START_SERVICE;
if (intent != null) {
msg.setData(intent.getExtras());
mServiceHandler.sendMessage(msg);
return START_STICKY;
} else {
// process restart - don't do anything - let system kill it again
stop();
return START_NOT_STICKY;
}
}
@Override
public IBinder onBind(Intent intent) {
// Very first client binds
Timber.d("onBind()");
return mBinder;
}
@Override
public boolean onUnbind(Intent intent) {
Timber.d("onUnbind()");
// All clients have unbound with unbindService()
Message msg = mServiceHandler.obtainMessage();
msg.arg2 = STOP_SERVICE;
mServiceHandler.sendMessage(msg);
Timber.d("onUnbind() message sent");
return true; // true is important so that onUnbind is also called next time
}
@Nullable
private Wallet.Status start(String walletName, String walletPassword) {
Timber.d("start()");
startNotfication();
showProgress(getString(R.string.status_wallet_loading));
showProgress(10);
if (listener == null) {
Timber.d("start() loadWallet");
Wallet aWallet = loadWallet(walletName, walletPassword);
if (aWallet == null) return null;
Wallet.Status walletStatus = aWallet.getFullStatus();
if (!walletStatus.isOk()) {
aWallet.close();
return walletStatus;
}
listener = new MyWalletListener();
listener.start();
showProgress(100);
}
showProgress(getString(R.string.status_wallet_connecting));
showProgress(101);
// if we try to refresh the history here we get occasional segfaults!
// doesnt matter since we update as soon as we get a new block anyway
Timber.d("start() done");
return getWallet().getFullStatus();
}
public void stop() {
Timber.d("stop()");
setObserver(null); // in case it was not reset already
if (listener != null) {
listener.stop();
Wallet myWallet = getWallet();
Timber.d("stop() closing");
myWallet.close();
Timber.d("stop() closed");
listener = null;
}
stopForeground(true);
stopSelf();
Running = false;
}
private Wallet loadWallet(String walletName, String walletPassword) {
Wallet wallet = openWallet(walletName, walletPassword);
if (wallet != null) {
Timber.d("Using daemon %s", WalletManager.getInstance().getDaemonAddress());
showProgress(55);
wallet.init(0);
showProgress(90);
}
return wallet;
}
private Wallet openWallet(String walletName, String walletPassword) {
String path = Helper.getWalletFile(getApplicationContext(), walletName).getAbsolutePath();
showProgress(20);
Wallet wallet = null;
WalletManager walletMgr = WalletManager.getInstance();
Timber.d("WalletManager network=%s", walletMgr.getNetworkType().name());
showProgress(30);
if (walletMgr.walletExists(path)) {
Timber.d("open wallet %s", path);
Wallet.Device device = WalletManager.getInstance().queryWalletDevice(path + ".keys", walletPassword);
Timber.d("device is %s", device.toString());
if (observer != null) observer.onWalletOpen(device);
wallet = walletMgr.openWallet(path, walletPassword);
showProgress(60);
Timber.d("wallet opened");
Wallet.Status walletStatus = wallet.getStatus();
if (!walletStatus.isOk()) {
Timber.d("wallet status is %s", walletStatus);
WalletManager.getInstance().close(wallet); // TODO close() failed?
wallet = null;
// TODO what do we do with the progress??
// TODO tell the activity this failed
// this crashes in MyWalletListener(Wallet aWallet) as wallet == null
}
}
return wallet;
}
private void startNotfication() {
Intent notificationIntent = new Intent(this, WalletActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
String channelId = Build.VERSION.SDK_INT >= Build.VERSION_CODES.O ? createNotificationChannel() : "";
Notification notification = new NotificationCompat.Builder(this, channelId)
.setContentTitle(getString(R.string.service_description))
.setOngoing(true)
.setSmallIcon(R.drawable.ic_monerujo)
.setPriority(NotificationCompat.PRIORITY_MIN)
.setCategory(NotificationCompat.CATEGORY_SERVICE)
.setContentIntent(pendingIntent)
.build();
startForeground(NOTIFICATION_ID, notification);
}
@RequiresApi(Build.VERSION_CODES.O)
private String createNotificationChannel() {
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NotificationChannel channel = new NotificationChannel(CHANNEL_ID, getString(R.string.service_description),
NotificationManager.IMPORTANCE_LOW);
channel.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
notificationManager.createNotificationChannel(channel);
return CHANNEL_ID;
}
}