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Merge branch 'tor-plugin-detect-connectivity-loss' into 'master'

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Tor plugin should detect connectivity loss

See merge request akwizgran/briar!670
This commit is contained in:
akwizgran
2018-01-23 17:15:09 +00:00
parent fcd9b20161 8f37957a46
commit 02cec9bacb
3 changed files with 103 additions and 54 deletions
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9
bramble-android/src/main/java/org/briarproject/bramble/plugin/AndroidPluginModule.java
View File

@@ -13,6 +13,7 @@ import org.briarproject.bramble.api.plugin.simplex.SimplexPluginFactory;
import org.briarproject.bramble.api.reporting.DevReporter;
import org.briarproject.bramble.api.system.AndroidExecutor;
import org.briarproject.bramble.api.system.LocationUtils;
import org.briarproject.bramble.api.system.Scheduler;
import org.briarproject.bramble.plugin.bluetooth.AndroidBluetoothPluginFactory;
import org.briarproject.bramble.plugin.tcp.AndroidLanTcpPluginFactory;
import org.briarproject.bramble.plugin.tor.TorPluginFactory;
@@ -22,6 +23,7 @@ import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.concurrent.Executor;
import java.util.concurrent.ScheduledExecutorService;
import javax.net.SocketFactory;
@@ -33,6 +35,7 @@ public class AndroidPluginModule {
@Provides
PluginConfig providePluginConfig(@IoExecutor Executor ioExecutor,
@Scheduler ScheduledExecutorService scheduler,
AndroidExecutor androidExecutor, SecureRandom random,
SocketFactory torSocketFactory, BackoffFactory backoffFactory,
Application app, LocationUtils locationUtils, DevReporter reporter,
@@ -41,9 +44,9 @@ public class AndroidPluginModule {
DuplexPluginFactory bluetooth =
new AndroidBluetoothPluginFactory(ioExecutor, androidExecutor,
appContext, random, eventBus, backoffFactory);
DuplexPluginFactory tor = new TorPluginFactory(ioExecutor, appContext,
locationUtils, reporter, eventBus, torSocketFactory,
backoffFactory);
DuplexPluginFactory tor = new TorPluginFactory(ioExecutor, scheduler,
appContext, locationUtils, reporter, eventBus,
torSocketFactory, backoffFactory);
DuplexPluginFactory lan = new AndroidLanTcpPluginFactory(ioExecutor,
backoffFactory, appContext);
Collection<DuplexPluginFactory> duplex =

136
bramble-android/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java
View File

@@ -59,7 +59,12 @@ import java.util.Map.Entry;
import java.util.Scanner;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executor;
import java.util.concurrent.Future;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.logging.Logger;
import java.util.regex.Pattern;
import java.util.zip.ZipInputStream;
@@ -70,10 +75,15 @@ import javax.net.SocketFactory;
import static android.content.Context.CONNECTIVITY_SERVICE;
import static android.content.Context.MODE_PRIVATE;
import static android.content.Context.POWER_SERVICE;
import static android.content.Intent.ACTION_SCREEN_OFF;
import static android.content.Intent.ACTION_SCREEN_ON;
import static android.net.ConnectivityManager.CONNECTIVITY_ACTION;
import static android.net.ConnectivityManager.TYPE_WIFI;
import static android.os.Build.VERSION.SDK_INT;
import static android.os.PowerManager.ACTION_DEVICE_IDLE_MODE_CHANGED;
import static android.os.PowerManager.PARTIAL_WAKE_LOCK;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static java.util.concurrent.TimeUnit.MINUTES;
import static java.util.logging.Level.INFO;
import static java.util.logging.Level.WARNING;
import static net.freehaven.tor.control.TorControlCommands.HS_ADDRESS;
@@ -102,6 +112,7 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
Logger.getLogger(TorPlugin.class.getName());
private final Executor ioExecutor;
private final ScheduledExecutorService scheduler;
private final Context appContext;
private final LocationUtils locationUtils;
private final DevReporter reporter;
@@ -114,6 +125,9 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
private final File torDirectory, torFile, geoIpFile, configFile;
private final File doneFile, cookieFile;
private final PowerManager.WakeLock wakeLock;
private final Lock connectionStatusLock;
private final AtomicReference<Future<?>> connectivityCheck =
new AtomicReference<>();
private final AtomicBoolean used = new AtomicBoolean(false);
private volatile boolean running = false;
@@ -122,12 +136,13 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
private volatile TorControlConnection controlConnection = null;
private volatile BroadcastReceiver networkStateReceiver = null;
TorPlugin(Executor ioExecutor, Context appContext,
LocationUtils locationUtils, DevReporter reporter,
SocketFactory torSocketFactory, Backoff backoff,
DuplexPluginCallback callback, String architecture, int maxLatency,
int maxIdleTime) {
TorPlugin(Executor ioExecutor, ScheduledExecutorService scheduler,
Context appContext, LocationUtils locationUtils,
DevReporter reporter, SocketFactory torSocketFactory,
Backoff backoff, DuplexPluginCallback callback,
String architecture, int maxLatency, int maxIdleTime) {
this.ioExecutor = ioExecutor;
this.scheduler = scheduler;
this.appContext = appContext;
this.locationUtils = locationUtils;
this.reporter = reporter;
@@ -152,6 +167,7 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
// This tag will prevent Huawei's powermanager from killing us.
wakeLock = pm.newWakeLock(PARTIAL_WAKE_LOCK, "LocationManagerService");
wakeLock.setReferenceCounted(false);
connectionStatusLock = new ReentrantLock();
}
@Override
@@ -204,11 +220,11 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
if (LOG.isLoggable(INFO)) {
Scanner stdout = new Scanner(torProcess.getInputStream());
Scanner stderr = new Scanner(torProcess.getErrorStream());
while (stdout.hasNextLine() || stderr.hasNextLine()){
if(stdout.hasNextLine()) {
while (stdout.hasNextLine() || stderr.hasNextLine()) {
if (stdout.hasNextLine()) {
LOG.info(stdout.nextLine());
}
if(stderr.hasNextLine()){
if (stderr.hasNextLine()) {
LOG.info(stderr.nextLine());
}
}
@@ -257,7 +273,11 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
}
// Register to receive network status events
networkStateReceiver = new NetworkStateReceiver();
IntentFilter filter = new IntentFilter(CONNECTIVITY_ACTION);
IntentFilter filter = new IntentFilter();
filter.addAction(CONNECTIVITY_ACTION);
filter.addAction(ACTION_SCREEN_ON);
filter.addAction(ACTION_SCREEN_OFF);
if (SDK_INT >= 23) filter.addAction(ACTION_DEVICE_IDLE_MODE_CHANGED);
appContext.registerReceiver(networkStateReceiver, filter);
// Bind a server socket to receive incoming hidden service connections
bind();
@@ -618,6 +638,8 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
@Override
public void orConnStatus(String status, String orName) {
if (LOG.isLoggable(INFO)) LOG.info("OR connection " + status);
if (status.equals("CLOSED") || status.equals("FAILED"))
updateConnectionStatus(); // Check whether we've lost connectivity
}
@Override
@@ -657,7 +679,7 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
}
@Override
public void onEvent(int event, String path) {
public void onEvent(int event, @Nullable String path) {
stopWatching();
latch.countDown();
}
@@ -677,53 +699,73 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
private void updateConnectionStatus() {
ioExecutor.execute(() -> {
if (!running) return;
Object o = appContext.getSystemService(CONNECTIVITY_SERVICE);
ConnectivityManager cm = (ConnectivityManager) o;
NetworkInfo net = cm.getActiveNetworkInfo();
boolean online = net != null && net.isConnected();
boolean wifi = online && net.getType() == TYPE_WIFI;
String country = locationUtils.getCurrentCountry();
boolean blocked = TorNetworkMetadata.isTorProbablyBlocked(
country);
Settings s = callback.getSettings();
int network = s.getInt(PREF_TOR_NETWORK, PREF_TOR_NETWORK_ALWAYS);
if (LOG.isLoggable(INFO)) {
LOG.info("Online: " + online + ", wifi: " + wifi);
if ("".equals(country)) LOG.info("Country code unknown");
else LOG.info("Country code: " + country);
}
try {
if (!online) {
LOG.info("Disabling network, device is offline");
enableNetwork(false);
} else if (blocked) {
LOG.info("Disabling network, country is blocked");
enableNetwork(false);
} else if (network == PREF_TOR_NETWORK_NEVER
|| (network == PREF_TOR_NETWORK_WIFI && !wifi)) {
LOG.info("Disabling network due to data setting");
enableNetwork(false);
} else {
LOG.info("Enabling network");
enableNetwork(true);
}
} catch (IOException e) {
if (LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
connectionStatusLock.lock();
updateConnectionStatusLocked();
} finally {
connectionStatusLock.unlock();
}
});
}
// Locking: connectionStatusLock
private void updateConnectionStatusLocked() {
Object o = appContext.getSystemService(CONNECTIVITY_SERVICE);
ConnectivityManager cm = (ConnectivityManager) o;
NetworkInfo net = cm.getActiveNetworkInfo();
boolean online = net != null && net.isConnected();
boolean wifi = online && net.getType() == TYPE_WIFI;
String country = locationUtils.getCurrentCountry();
boolean blocked = TorNetworkMetadata.isTorProbablyBlocked(
country);
Settings s = callback.getSettings();
int network = s.getInt(PREF_TOR_NETWORK, PREF_TOR_NETWORK_ALWAYS);
if (LOG.isLoggable(INFO)) {
LOG.info("Online: " + online + ", wifi: " + wifi);
if ("".equals(country)) LOG.info("Country code unknown");
else LOG.info("Country code: " + country);
}
try {
if (!online) {
LOG.info("Disabling network, device is offline");
enableNetwork(false);
} else if (blocked) {
LOG.info("Disabling network, country is blocked");
enableNetwork(false);
} else if (network == PREF_TOR_NETWORK_NEVER
|| (network == PREF_TOR_NETWORK_WIFI && !wifi)) {
LOG.info("Disabling network due to data setting");
enableNetwork(false);
} else {
LOG.info("Enabling network");
enableNetwork(true);
}
} catch (IOException e) {
if (LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
}
}
private void scheduleConnectionStatusUpdate() {
Future<?> newConnectivityCheck =
scheduler.schedule(this::updateConnectionStatus, 1, MINUTES);
Future<?> oldConnectivityCheck =
connectivityCheck.getAndSet(newConnectivityCheck);
if (oldConnectivityCheck != null) oldConnectivityCheck.cancel(false);
}
private class NetworkStateReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context ctx, Intent i) {
if (!running) return;
if (CONNECTIVITY_ACTION.equals(i.getAction())) {
LOG.info("Detected connectivity change");
updateConnectionStatus();
String action = i.getAction();
if (LOG.isLoggable(INFO)) LOG.info("Received broadcast " + action);
updateConnectionStatus();
if (ACTION_SCREEN_ON.equals(action)
|| ACTION_SCREEN_OFF.equals(action)) {
scheduleConnectionStatusUpdate();
}
}
}

12
bramble-android/src/main/java/org/briarproject/bramble/plugin/tor/TorPluginFactory.java
View File

@@ -17,6 +17,7 @@ import org.briarproject.bramble.api.system.LocationUtils;
import org.briarproject.bramble.util.AndroidUtils;
import java.util.concurrent.Executor;
import java.util.concurrent.ScheduledExecutorService;
import java.util.logging.Logger;
import javax.annotation.concurrent.Immutable;
@@ -36,6 +37,7 @@ public class TorPluginFactory implements DuplexPluginFactory {
private static final double BACKOFF_BASE = 1.2;
private final Executor ioExecutor;
private final ScheduledExecutorService scheduler;
private final Context appContext;
private final LocationUtils locationUtils;
private final DevReporter reporter;
@@ -43,11 +45,13 @@ public class TorPluginFactory implements DuplexPluginFactory {
private final SocketFactory torSocketFactory;
private final BackoffFactory backoffFactory;
public TorPluginFactory(Executor ioExecutor, Context appContext,
public TorPluginFactory(Executor ioExecutor,
ScheduledExecutorService scheduler, Context appContext,
LocationUtils locationUtils, DevReporter reporter,
EventBus eventBus, SocketFactory torSocketFactory,
BackoffFactory backoffFactory) {
this.ioExecutor = ioExecutor;
this.scheduler = scheduler;
this.appContext = appContext;
this.locationUtils = locationUtils;
this.reporter = reporter;
@@ -89,9 +93,9 @@ public class TorPluginFactory implements DuplexPluginFactory {
Backoff backoff = backoffFactory.createBackoff(MIN_POLLING_INTERVAL,
MAX_POLLING_INTERVAL, BACKOFF_BASE);
TorPlugin plugin = new TorPlugin(ioExecutor, appContext, locationUtils,
reporter, torSocketFactory, backoff, callback, architecture,
MAX_LATENCY, MAX_IDLE_TIME);
TorPlugin plugin = new TorPlugin(ioExecutor, scheduler, appContext,
locationUtils, reporter, torSocketFactory, backoff, callback,
architecture, MAX_LATENCY, MAX_IDLE_TIME);
eventBus.addListener(plugin);
return plugin;
}