Try fixing the localization issues

TRANSLATION.md

@@ -1,9 +0,0 @@
-Translations for this project are managed through Transifex:
-
-https://transifex.com/otf/briar
-
-If you'd like to volunteer as a translator, please create a Transifex account and request to be
-added to the project's translation team. The Localization Lab has some instructions and advice for
-translators here:
-
-https://wiki.localizationlab.org/index.php/Briar

bramble-android/src/main/java/org/briarproject/bramble/account/AndroidAccountManager.java

@@ -9,10 +9,8 @@ import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.bramble.api.crypto.CryptoComponent;
 import org.briarproject.bramble.api.db.DatabaseConfig;
 import org.briarproject.bramble.api.identity.IdentityManager;
-import org.briarproject.bramble.api.logging.PersistentLogManager;
 
 import java.io.File;
-import java.io.IOException;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
@@ -22,21 +20,17 @@ import javax.annotation.Nullable;
 import javax.annotation.concurrent.GuardedBy;
 import javax.inject.Inject;
 
-import static android.content.Context.MODE_PRIVATE;
 import static android.os.Build.VERSION.SDK_INT;
 import static java.util.Arrays.asList;
 import static java.util.logging.Level.INFO;
-import static java.util.logging.Level.WARNING;
-import static java.util.logging.Logger.getLogger;
 import static org.briarproject.bramble.util.IoUtils.deleteFileOrDir;
-import static org.briarproject.bramble.util.LogUtils.logException;
 import static org.briarproject.bramble.util.LogUtils.logFileOrDir;
 
 class AndroidAccountManager extends AccountManagerImpl
 		implements AccountManager {
 
 	private static final Logger LOG =
-			getLogger(AndroidAccountManager.class.getName());
+			Logger.getLogger(AndroidAccountManager.class.getName());
 
 	/**
 	 * Directories that shouldn't be deleted when deleting the user's account.
@@ -46,16 +40,13 @@ class AndroidAccountManager extends AccountManagerImpl
 
 	protected final Context appContext;
 	private final SharedPreferences prefs;
-	private final PersistentLogManager logManager;
 
 	@Inject
 	AndroidAccountManager(DatabaseConfig databaseConfig,
 			CryptoComponent crypto, IdentityManager identityManager,
-			SharedPreferences prefs, PersistentLogManager logManager,
-			Application app) {
+			SharedPreferences prefs, Application app) {
 		super(databaseConfig, crypto, identityManager);
 		this.prefs = prefs;
-		this.logManager = logManager;
 		appContext = app.getApplicationContext();
 	}
 
@@ -83,7 +74,6 @@ class AndroidAccountManager extends AccountManagerImpl
 				LOG.info("Contents of account directory after deleting:");
 				logFileOrDir(LOG, INFO, getDataDir());
 			}
-			replacePersistentLogger();
 		}
 	}
 
@@ -144,13 +134,4 @@ class AndroidAccountManager extends AccountManagerImpl
 	private void addIfNotNull(Set<File> files, @Nullable File file) {
 		if (file != null) files.add(file);
 	}
-
-	private void replacePersistentLogger() {
-		File logDir = appContext.getDir("log", MODE_PRIVATE);
-		try {
-			logManager.addLogHandler(logDir, getLogger(""));
-		} catch (IOException e) {
-			logException(LOG, WARNING, e);
-		}
-	}
 }

bramble-android/src/test/java/org/briarproject/bramble/account/AndroidAccountManagerTest.java

@@ -7,7 +7,6 @@ import android.content.pm.ApplicationInfo;
 import org.briarproject.bramble.api.crypto.CryptoComponent;
 import org.briarproject.bramble.api.db.DatabaseConfig;
 import org.briarproject.bramble.api.identity.IdentityManager;
-import org.briarproject.bramble.api.logging.PersistentLogManager;
 import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.jmock.Expectations;
 import org.jmock.lib.legacy.ClassImposteriser;
@@ -16,9 +15,7 @@ import org.junit.Before;
 import org.junit.Test;
 
 import java.io.File;
-import java.util.logging.Logger;
 
-import static android.content.Context.MODE_PRIVATE;
 import static junit.framework.Assert.assertFalse;
 import static junit.framework.Assert.assertTrue;
 import static org.briarproject.bramble.test.TestUtils.deleteTestDirectory;
@@ -30,8 +27,6 @@ public class AndroidAccountManagerTest extends BrambleMockTestCase {
 			context.mock(SharedPreferences.class, "prefs");
 	private final SharedPreferences defaultPrefs =
 			context.mock(SharedPreferences.class, "defaultPrefs");
-	private final PersistentLogManager logManager =
-			context.mock(PersistentLogManager.class);
 	private final DatabaseConfig databaseConfig =
 			context.mock(DatabaseConfig.class);
 	private final CryptoComponent crypto = context.mock(CryptoComponent.class);
@@ -45,7 +40,6 @@ public class AndroidAccountManagerTest extends BrambleMockTestCase {
 	private final File testDir = getTestDirectory();
 	private final File keyDir = new File(testDir, "key");
 	private final File dbDir = new File(testDir, "db");
-	private final File logDir = new File(testDir, "log");
 
 	private AndroidAccountManager accountManager;
 
@@ -67,7 +61,7 @@ public class AndroidAccountManagerTest extends BrambleMockTestCase {
 			will(returnValue(app));
 		}});
 		accountManager = new AndroidAccountManager(databaseConfig, crypto,
-				identityManager, prefs, logManager, app) {
+				identityManager, prefs, app) {
 			@Override
 			SharedPreferences getDefaultSharedPreferences() {
 				return defaultPrefs;
@@ -115,15 +109,10 @@ public class AndroidAccountManagerTest extends BrambleMockTestCase {
 			will(returnValue(cacheDir));
 			oneOf(app).getExternalCacheDir();
 			will(returnValue(externalCacheDir));
-			oneOf(app).getDir("log", MODE_PRIVATE);
-			will(returnValue(logDir));
-			oneOf(logManager).addLogHandler(with(logDir),
-					with(any(Logger.class)));
 		}});
 
 		assertTrue(dbDir.mkdirs());
 		assertTrue(keyDir.mkdirs());
-		assertTrue(logDir.mkdirs());
 		assertTrue(codeCacheDir.mkdirs());
 		assertTrue(codeCacheFile.createNewFile());
 		assertTrue(libDir.mkdirs());
@@ -141,7 +130,6 @@ public class AndroidAccountManagerTest extends BrambleMockTestCase {
 
 		assertFalse(dbDir.exists());
 		assertFalse(keyDir.exists());
-		assertFalse(logDir.exists());
 		assertTrue(codeCacheDir.exists());
 		assertTrue(codeCacheFile.exists());
 		assertTrue(libDir.exists());

bramble-api/src/main/java/org/briarproject/bramble/api/StringMap.java

@@ -1,16 +1,8 @@
 package org.briarproject.bramble.api;
 
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
 import java.util.Hashtable;
 import java.util.Map;
 
-import javax.annotation.Nullable;
-
-import static org.briarproject.bramble.util.StringUtils.fromHexString;
-import static org.briarproject.bramble.util.StringUtils.toHexString;
-
-@NotNullByDefault
 public abstract class StringMap extends Hashtable<String, String> {
 
 	protected StringMap(Map<String, String> m) {
@@ -60,19 +52,4 @@ public abstract class StringMap extends Hashtable<String, String> {
 	public void putLong(String key, long value) {
 		put(key, String.valueOf(value));
 	}
-
-	@Nullable
-	public byte[] getBytes(String key) {
-		String s = get(key);
-		if (s == null) return null;
-		try {
-			return fromHexString(s);
-		} catch (IllegalArgumentException e) {
-			return null;
-		}
-	}
-
-	public void putBytes(String key, byte[] value) {
-		put(key, toHexString(value));
-	}
 }

bramble-api/src/main/java/org/briarproject/bramble/api/crypto/StreamDecrypterFactory.java

@@ -19,10 +19,4 @@ public interface StreamDecrypterFactory {
 	 */
 	StreamDecrypter createContactExchangeStreamDecrypter(InputStream in,
 			SecretKey headerKey);
-
-	/**
-	 * Creates a {@link StreamDecrypter} for decrypting a log stream.
-	 */
-	StreamDecrypter createLogStreamDecrypter(InputStream in,
-			SecretKey headerKey);
 }

bramble-api/src/main/java/org/briarproject/bramble/api/crypto/StreamEncrypterFactory.java

@@ -17,12 +17,6 @@ public interface StreamEncrypterFactory {
 	 * Creates a {@link StreamEncrypter} for encrypting a contact exchange
 	 * stream.
 	 */
-	StreamEncrypter createContactExchangeStreamEncrypter(OutputStream out,
-			SecretKey headerKey);
-
-	/**
-	 * Creates a {@link StreamEncrypter} for encrypting a log stream.
-	 */
-	StreamEncrypter createLogStreamEncrypter(OutputStream out,
+	StreamEncrypter createContactExchangeStreamDecrypter(OutputStream out,
 			SecretKey headerKey);
 }

bramble-api/src/main/java/org/briarproject/bramble/api/logging/PersistentLogManager.java

@@ -1,46 +0,0 @@
-package org.briarproject.bramble.api.logging;
-
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.settings.Settings;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.Scanner;
-import java.util.logging.Handler;
-import java.util.logging.Logger;
-
-@NotNullByDefault
-public interface PersistentLogManager {
-
-	/**
-	 * The namespace of the (@link Settings) where the log key is stored.
-	 */
-	String LOG_SETTINGS_NAMESPACE = "log";
-
-	/**
-	 * The {@link Settings} key under which the log key is stored.
-	 */
-	String LOG_KEY_KEY = "logKey";
-
-	/**
-	 * Creates and returns a persistent log handler that stores its logs in
-	 * the given directory.
-	 */
-	Handler createLogHandler(File dir) throws IOException;
-
-	/**
-	 * Creates a persistent log handler that stores its logs in the given
-	 * directory and adds the handler to the given logger, replacing any
-	 * existing persistent log handler.
-	 */
-	void addLogHandler(File dir, Logger logger) throws IOException;
-
-	/**
-	 * Returns a {@link Scanner} for reading the persistent log entries stored
-	 * in the given directory.
-	 *
-	 * @param old True if the previous session's log should be loaded, or false
-	 * if the current session's log should be loaded
-	 */
-	Scanner getPersistedLog(File dir, boolean old) throws IOException;
-}

bramble-api/src/main/java/org/briarproject/bramble/api/transport/StreamReaderFactory.java

@@ -16,13 +16,8 @@ public interface StreamReaderFactory {
 
 	/**
 	 * Creates an {@link InputStream InputStream} for reading from a contact
-	 * exchange stream.
+	 * exchangestream.
 	 */
 	InputStream createContactExchangeStreamReader(InputStream in,
 			SecretKey headerKey);
-
-	/**
-	 * Creates an {@link InputStream} for reading from a log stream.
-	 */
-	InputStream createLogStreamReader(InputStream in, SecretKey headerKey);
 }

bramble-api/src/main/java/org/briarproject/bramble/api/transport/StreamWriterFactory.java

@@ -9,18 +9,15 @@ import java.io.OutputStream;
 public interface StreamWriterFactory {
 
 	/**
-	 * Creates a {@link StreamWriter} for writing to a transport stream.
+	 * Creates an {@link OutputStream OutputStream} for writing to a
+	 * transport stream
 	 */
 	StreamWriter createStreamWriter(OutputStream out, StreamContext ctx);
 
 	/**
-	 * Creates a {@link StreamWriter} for writing to a contact exchange stream.
+	 * Creates an {@link OutputStream OutputStream} for writing to a contact
+	 * exchange stream.
 	 */
 	StreamWriter createContactExchangeStreamWriter(OutputStream out,
 			SecretKey headerKey);
-
-	/**
-	 * Creates a {@link StreamWriter} for writing to a log stream.
-	 */
-	StreamWriter createLogStreamWriter(OutputStream out, SecretKey headerKey);
 }

bramble-core/src/main/java/org/briarproject/bramble/BrambleCoreModule.java

@@ -13,7 +13,6 @@ import org.briarproject.bramble.identity.IdentityModule;
 import org.briarproject.bramble.io.IoModule;
 import org.briarproject.bramble.keyagreement.KeyAgreementModule;
 import org.briarproject.bramble.lifecycle.LifecycleModule;
-import org.briarproject.bramble.logging.LoggingModule;
 import org.briarproject.bramble.plugin.PluginModule;
 import org.briarproject.bramble.properties.PropertiesModule;
 import org.briarproject.bramble.record.RecordModule;
@@ -42,7 +41,6 @@ import dagger.Module;
 		IoModule.class,
 		KeyAgreementModule.class,
 		LifecycleModule.class,
-		LoggingModule.class,
 		PluginModule.class,
 		PropertiesModule.class,
 		RecordModule.class,

bramble-core/src/main/java/org/briarproject/bramble/crypto/StreamDecrypterFactoryImpl.java

@@ -36,10 +36,4 @@ class StreamDecrypterFactoryImpl implements StreamDecrypterFactory {
 			SecretKey headerKey) {
 		return new StreamDecrypterImpl(in, cipherProvider.get(), 0, headerKey);
 	}
-
-	@Override
-	public StreamDecrypter createLogStreamDecrypter(InputStream in,
-			SecretKey headerKey) {
-		return createContactExchangeStreamDecrypter(in, headerKey);
-	}
 }

bramble-core/src/main/java/org/briarproject/bramble/crypto/StreamEncrypterFactoryImpl.java

@@ -51,7 +51,7 @@ class StreamEncrypterFactoryImpl implements StreamEncrypterFactory {
 	}
 
 	@Override
-	public StreamEncrypter createContactExchangeStreamEncrypter(
+	public StreamEncrypter createContactExchangeStreamDecrypter(
 			OutputStream out, SecretKey headerKey) {
 		AuthenticatedCipher cipher = cipherProvider.get();
 		byte[] streamHeaderNonce = new byte[STREAM_HEADER_NONCE_LENGTH];
@@ -60,10 +60,4 @@ class StreamEncrypterFactoryImpl implements StreamEncrypterFactory {
 		return new StreamEncrypterImpl(out, cipher, 0, null, streamHeaderNonce,
 				headerKey, frameKey);
 	}
-
-	@Override
-	public StreamEncrypter createLogStreamEncrypter(OutputStream out,
-			SecretKey headerKey) {
-		return createContactExchangeStreamEncrypter(out, headerKey);
-	}
 }

bramble-core/src/main/java/org/briarproject/bramble/logging/FlushingStreamHandler.java

@@ -1,43 +0,0 @@
-package org.briarproject.bramble.logging;
-
-import java.io.OutputStream;
-import java.util.concurrent.Executor;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.logging.Formatter;
-import java.util.logging.LogRecord;
-import java.util.logging.StreamHandler;
-
-import static java.util.concurrent.TimeUnit.MILLISECONDS;
-
-class FlushingStreamHandler extends StreamHandler {
-
-	private static final int FLUSH_DELAY_MS = 5_000;
-
-	private final ScheduledExecutorService scheduler;
-	private final Executor ioExecutor;
-	private final AtomicBoolean flushScheduled = new AtomicBoolean(false);
-
-	FlushingStreamHandler(ScheduledExecutorService scheduler,
-			Executor ioExecutor, OutputStream out, Formatter formatter) {
-		super(out, formatter);
-		this.scheduler = scheduler;
-		this.ioExecutor = ioExecutor;
-	}
-
-	@Override
-	public void publish(LogRecord record) {
-		super.publish(record);
-		if (!flushScheduled.getAndSet(true)) {
-			scheduler.schedule(this::scheduledFlush,
-					FLUSH_DELAY_MS, MILLISECONDS);
-		}
-	}
-
-	private void scheduledFlush() {
-		ioExecutor.execute(() -> {
-			flushScheduled.set(false);
-			flush();
-		});
-	}
-}

bramble-core/src/main/java/org/briarproject/bramble/logging/LoggingModule.java

@@ -1,29 +0,0 @@
-package org.briarproject.bramble.logging;
-
-import org.briarproject.bramble.api.lifecycle.LifecycleManager;
-import org.briarproject.bramble.api.logging.PersistentLogManager;
-
-import java.util.logging.Formatter;
-
-import javax.inject.Singleton;
-
-import dagger.Module;
-import dagger.Provides;
-
-@Module
-public class LoggingModule {
-
-	@Provides
-	Formatter provideFormatter() {
-		return new BriefLogFormatter();
-	}
-
-	@Provides
-	@Singleton
-	PersistentLogManager providePersistentLogManager(
-			LifecycleManager lifecycleManager,
-			PersistentLogManagerImpl persistentLogManager) {
-		lifecycleManager.registerOpenDatabaseHook(persistentLogManager);
-		return persistentLogManager;
-	}
-}

bramble-core/src/main/java/org/briarproject/bramble/logging/PersistentLogManagerImpl.java

@@ -1,177 +0,0 @@
-package org.briarproject.bramble.logging;
-
-import org.briarproject.bramble.api.crypto.CryptoComponent;
-import org.briarproject.bramble.api.crypto.SecretKey;
-import org.briarproject.bramble.api.db.DatabaseComponent;
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.bramble.api.db.Transaction;
-import org.briarproject.bramble.api.lifecycle.IoExecutor;
-import org.briarproject.bramble.api.lifecycle.LifecycleManager.OpenDatabaseHook;
-import org.briarproject.bramble.api.lifecycle.ShutdownManager;
-import org.briarproject.bramble.api.logging.PersistentLogManager;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.settings.Settings;
-import org.briarproject.bramble.api.system.Scheduler;
-import org.briarproject.bramble.api.transport.StreamReaderFactory;
-import org.briarproject.bramble.api.transport.StreamWriter;
-import org.briarproject.bramble.api.transport.StreamWriterFactory;
-
-import java.io.ByteArrayInputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.Scanner;
-import java.util.concurrent.Executor;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.atomic.AtomicReference;
-import java.util.logging.Formatter;
-import java.util.logging.Handler;
-import java.util.logging.Logger;
-import java.util.logging.StreamHandler;
-
-import javax.annotation.Nullable;
-import javax.annotation.concurrent.ThreadSafe;
-import javax.inject.Inject;
-
-import static java.util.logging.Level.WARNING;
-import static java.util.logging.Logger.getLogger;
-import static org.briarproject.bramble.util.LogUtils.logException;
-
-@ThreadSafe
-@NotNullByDefault
-class PersistentLogManagerImpl implements PersistentLogManager,
-		OpenDatabaseHook {
-
-	private static final Logger LOG =
-			getLogger(PersistentLogManagerImpl.class.getName());
-
-	private static final String LOG_FILE = "briar.log";
-	private static final String OLD_LOG_FILE = "briar.log.old";
-
-	private final ScheduledExecutorService scheduler;
-	private final Executor ioExecutor;
-	private final ShutdownManager shutdownManager;
-	private final DatabaseComponent db;
-	private final StreamReaderFactory streamReaderFactory;
-	private final StreamWriterFactory streamWriterFactory;
-	private final Formatter formatter;
-	private final SecretKey logKey;
-	private final AtomicReference<Integer> shutdownHookHandle =
-			new AtomicReference<>();
-
-	@Nullable
-	private volatile SecretKey oldLogKey = null;
-
-	@Inject
-	PersistentLogManagerImpl(
-			@Scheduler ScheduledExecutorService scheduler,
-			@IoExecutor Executor ioExecutor,
-			ShutdownManager shutdownManager,
-			DatabaseComponent db,
-			StreamReaderFactory streamReaderFactory,
-			StreamWriterFactory streamWriterFactory,
-			Formatter formatter,
-			CryptoComponent crypto) {
-		this.scheduler = scheduler;
-		this.ioExecutor = ioExecutor;
-		this.shutdownManager = shutdownManager;
-		this.db = db;
-		this.streamReaderFactory = streamReaderFactory;
-		this.streamWriterFactory = streamWriterFactory;
-		this.formatter = formatter;
-		logKey = crypto.generateSecretKey();
-	}
-
-	@Override
-	public void onDatabaseOpened(Transaction txn) throws DbException {
-		Settings s = db.getSettings(txn, LOG_SETTINGS_NAMESPACE);
-		// Load the old log key, if any
-		byte[] oldKeyBytes = s.getBytes(LOG_KEY_KEY);
-		if (oldKeyBytes != null && oldKeyBytes.length == SecretKey.LENGTH) {
-			LOG.info("Loaded old log key");
-			oldLogKey = new SecretKey(oldKeyBytes);
-		}
-		// Store the current log key
-		s.putBytes(LOG_KEY_KEY, logKey.getBytes());
-		db.mergeSettings(txn, s, LOG_SETTINGS_NAMESPACE);
-	}
-
-	@Override
-	public Handler createLogHandler(File dir) throws IOException {
-		File logFile = new File(dir, LOG_FILE);
-		File oldLogFile = new File(dir, OLD_LOG_FILE);
-		if (oldLogFile.exists() && !oldLogFile.delete())
-			LOG.warning("Failed to delete old log file");
-		if (logFile.exists() && !logFile.renameTo(oldLogFile))
-			LOG.warning("Failed to rename log file");
-		try {
-			OutputStream out = new FileOutputStream(logFile);
-			StreamWriter writer =
-					streamWriterFactory.createLogStreamWriter(out, logKey);
-			StreamHandler handler = new FlushingStreamHandler(scheduler,
-					ioExecutor, writer.getOutputStream(), formatter);
-			// Flush the log and terminate the stream at shutdown
-			Runnable shutdownHook = () -> {
-				LOG.info("Shutting down");
-				handler.flush();
-				try {
-					writer.sendEndOfStream();
-				} catch (IOException e) {
-					logException(LOG, WARNING, e);
-				}
-			};
-			int handle = shutdownManager.addShutdownHook(shutdownHook);
-			// If a previous handler registered a shutdown hook, remove it
-			Integer oldHandle = shutdownHookHandle.getAndSet(handle);
-			if (oldHandle != null) {
-				shutdownManager.removeShutdownHook(oldHandle);
-			}
-			return handler;
-		} catch (SecurityException e) {
-			throw new IOException(e);
-		}
-	}
-
-	@Override
-	public void addLogHandler(File dir, Logger logger) throws IOException {
-		for (Handler h : logger.getHandlers()) {
-			if (h instanceof FlushingStreamHandler) logger.removeHandler(h);
-		}
-		logger.addHandler(createLogHandler(dir));
-	}
-
-	@Override
-	public Scanner getPersistedLog(File dir, boolean old)
-			throws IOException {
-		if (old) {
-			SecretKey oldLogKey = this.oldLogKey;
-			if (oldLogKey == null) {
-				LOG.info("Old log key has not been loaded");
-				return emptyScanner();
-			}
-			return getPersistedLog(new File(dir, OLD_LOG_FILE), oldLogKey);
-		} else {
-			return getPersistedLog(new File(dir, LOG_FILE), logKey);
-		}
-	}
-
-	private Scanner getPersistedLog(File logFile, SecretKey key)
-			throws IOException {
-		if (logFile.exists()) {
-			LOG.info("Reading log file");
-			InputStream in = new FileInputStream(logFile);
-			return new Scanner(streamReaderFactory.createLogStreamReader(in,
-					key));
-		} else {
-			LOG.info("Log file does not exist");
-			return emptyScanner();
-		}
-	}
-
-	private Scanner emptyScanner() {
-		return new Scanner(new ByteArrayInputStream(new byte[0]));
-	}
-}

bramble-core/src/main/java/org/briarproject/bramble/transport/StreamReaderFactoryImpl.java

@@ -24,21 +24,15 @@ class StreamReaderFactoryImpl implements StreamReaderFactory {
 
 	@Override
 	public InputStream createStreamReader(InputStream in, StreamContext ctx) {
-		return new StreamReaderImpl(streamDecrypterFactory
-				.createStreamDecrypter(in, ctx));
+		return new StreamReaderImpl(
+				streamDecrypterFactory.createStreamDecrypter(in, ctx));
 	}
 
 	@Override
 	public InputStream createContactExchangeStreamReader(InputStream in,
 			SecretKey headerKey) {
-		return new StreamReaderImpl(streamDecrypterFactory
-				.createContactExchangeStreamDecrypter(in, headerKey));
-	}
-
-	@Override
-	public InputStream createLogStreamReader(InputStream in,
-			SecretKey headerKey) {
-		return new StreamReaderImpl(streamDecrypterFactory
-				.createLogStreamDecrypter(in, headerKey));
+		return new StreamReaderImpl(
+				streamDecrypterFactory.createContactExchangeStreamDecrypter(in,
+						headerKey));
 	}
 }

bramble-core/src/main/java/org/briarproject/bramble/transport/StreamWriterFactoryImpl.java

@@ -26,21 +26,15 @@ class StreamWriterFactoryImpl implements StreamWriterFactory {
 	@Override
 	public StreamWriter createStreamWriter(OutputStream out,
 			StreamContext ctx) {
-		return new StreamWriterImpl(streamEncrypterFactory
-				.createStreamEncrypter(out, ctx));
+		return new StreamWriterImpl(
+				streamEncrypterFactory.createStreamEncrypter(out, ctx));
 	}
 
 	@Override
 	public StreamWriter createContactExchangeStreamWriter(OutputStream out,
 			SecretKey headerKey) {
-		return new StreamWriterImpl(streamEncrypterFactory
-				.createContactExchangeStreamEncrypter(out, headerKey));
-	}
-
-	@Override
-	public StreamWriter createLogStreamWriter(OutputStream out,
-			SecretKey headerKey) {
-		return new StreamWriterImpl(streamEncrypterFactory
-				.createLogStreamEncrypter(out, headerKey));
+		return new StreamWriterImpl(
+				streamEncrypterFactory.createContactExchangeStreamDecrypter(out,
+						headerKey));
 	}
 }

briar-android/src/main/java/org/briarproject/bramble/account/BriarAccountManager.java

@@ -6,7 +6,6 @@ import android.content.SharedPreferences;
 import org.briarproject.bramble.api.crypto.CryptoComponent;
 import org.briarproject.bramble.api.db.DatabaseConfig;
 import org.briarproject.bramble.api.identity.IdentityManager;
-import org.briarproject.bramble.api.logging.PersistentLogManager;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.Localizer;
 import org.briarproject.briar.android.util.UiUtils;
@@ -18,8 +17,8 @@ class BriarAccountManager extends AndroidAccountManager {
 	@Inject
 	BriarAccountManager(DatabaseConfig databaseConfig, CryptoComponent crypto,
 			IdentityManager identityManager, SharedPreferences prefs,
-			PersistentLogManager logManager, Application app) {
-		super(databaseConfig, crypto, identityManager, prefs, logManager, app);
+			Application app) {
+		super(databaseConfig, crypto, identityManager, prefs, app);
 	}
 
 	@Override

briar-android/src/main/java/org/briarproject/briar/android/AndroidComponent.java

@@ -20,7 +20,6 @@ import org.briarproject.bramble.api.keyagreement.PayloadEncoder;
 import org.briarproject.bramble.api.keyagreement.PayloadParser;
 import org.briarproject.bramble.api.lifecycle.IoExecutor;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager;
-import org.briarproject.bramble.api.logging.PersistentLogManager;
 import org.briarproject.bramble.api.plugin.PluginManager;
 import org.briarproject.bramble.api.settings.SettingsManager;
 import org.briarproject.bramble.api.system.AndroidExecutor;
@@ -57,7 +56,6 @@ import org.briarproject.briar.api.privategroup.invitation.GroupInvitationManager
 import org.briarproject.briar.api.test.TestDataCreator;
 
 import java.util.concurrent.Executor;
-import java.util.logging.Formatter;
 
 import javax.inject.Singleton;
 
@@ -167,10 +165,6 @@ public interface AndroidComponent
 
 	FeatureFlags featureFlags();
 
-	PersistentLogManager persistentLogManager();
-
-	Formatter formatter();
-
 	void inject(SignInReminderReceiver briarService);
 
 	void inject(BriarService briarService);

briar-android/src/main/java/org/briarproject/briar/android/BriarApplicationImpl.java

@@ -10,6 +10,7 @@ import android.os.StrictMode;
 import android.os.StrictMode.ThreadPolicy;
 import android.os.StrictMode.VmPolicy;
 import android.preference.PreferenceManager;
+import android.util.Log;
 
 import com.vanniktech.emoji.EmojiManager;
 import com.vanniktech.emoji.google.GoogleEmojiProvider;
@@ -19,7 +20,6 @@ import org.acra.ReportingInteractionMode;
 import org.acra.annotation.ReportsCrashes;
 import org.briarproject.bramble.BrambleAndroidEagerSingletons;
 import org.briarproject.bramble.BrambleCoreEagerSingletons;
-import org.briarproject.bramble.api.logging.PersistentLogManager;
 import org.briarproject.briar.BriarCoreEagerSingletons;
 import org.briarproject.briar.BuildConfig;
 import org.briarproject.briar.R;
@@ -29,8 +29,6 @@ import org.briarproject.briar.android.reporting.BriarReportSenderFactory;
 import org.briarproject.briar.android.reporting.DevReportActivity;
 import org.briarproject.briar.android.util.UiUtils;
 
-import java.io.File;
-import java.io.IOException;
 import java.util.Collection;
 import java.util.logging.Handler;
 import java.util.logging.LogRecord;
@@ -39,7 +37,6 @@ import java.util.logging.Logger;
 import static android.app.ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND;
 import static java.util.logging.Level.FINE;
 import static java.util.logging.Level.INFO;
-import static java.util.logging.Level.WARNING;
 import static java.util.logging.Logger.getLogger;
 import static org.acra.ReportField.ANDROID_VERSION;
 import static org.acra.ReportField.APP_VERSION_CODE;
@@ -58,7 +55,6 @@ import static org.acra.ReportField.REPORT_ID;
 import static org.acra.ReportField.STACK_TRACE;
 import static org.acra.ReportField.USER_APP_START_DATE;
 import static org.acra.ReportField.USER_CRASH_DATE;
-import static org.briarproject.bramble.util.LogUtils.logException;
 import static org.briarproject.briar.android.TestingConstants.IS_DEBUG_BUILD;
 
 @ReportsCrashes(
@@ -101,6 +97,7 @@ public class BriarApplicationImpl extends Application
 		Localizer.initialize(prefs);
 		super.attachBaseContext(
 				Localizer.getInstance().setLocale(base));
+		Localizer.getInstance().setLocale(this);
 		setTheme(base, prefs);
 		ACRA.init(this);
 	}
@@ -125,19 +122,9 @@ public class BriarApplicationImpl extends Application
 		rootLogger.addHandler(logHandler);
 		rootLogger.setLevel(IS_DEBUG_BUILD ? FINE : INFO);
 
-		applicationComponent = createApplicationComponent();
-
-		PersistentLogManager logManager =
-				applicationComponent.persistentLogManager();
-		File logDir = getDir("log", MODE_PRIVATE);
-		try {
-			rootLogger.addHandler(logManager.createLogHandler(logDir));
-		} catch (IOException e) {
-			logException(LOG, WARNING, e);
-		}
-
 		LOG.info("Created");
 
+		applicationComponent = createApplicationComponent();
 		EmojiManager.install(new GoogleEmojiProvider());
 	}
 
@@ -160,6 +147,7 @@ public class BriarApplicationImpl extends Application
 	@Override
 	public void onConfigurationChanged(Configuration newConfig) {
 		super.onConfigurationChanged(newConfig);
+		Log.d("language", "BriarApplicationImpl#onConfigurationChanged()");
 		Localizer.getInstance().setLocale(this);
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/BriarService.java

@@ -13,6 +13,7 @@ import android.content.IntentFilter;
 import android.content.ServiceConnection;
 import android.os.Binder;
 import android.os.IBinder;
+import android.util.Log;
 
 import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.bramble.api.crypto.SecretKey;
@@ -160,7 +161,9 @@ public class BriarService extends Service {
 
 	@Override
 	protected void attachBaseContext(Context base) {
+		Log.d("language", "BriarService#attachBaseContext()");
 		super.attachBaseContext(Localizer.getInstance().setLocale(base));
+		Localizer.getInstance().setLocale(this);
 	}
 
 	private void showStartupFailureNotification(StartResult result) {

briar-android/src/main/java/org/briarproject/briar/android/Localizer.java

@@ -4,6 +4,7 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.content.res.Resources;
+import android.util.Log;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
@@ -26,22 +27,29 @@ public class Localizer {
 	private Localizer(SharedPreferences sharedPreferences) {
 		this(Locale.getDefault(), getLocaleFromTag(
 				sharedPreferences.getString(LANGUAGE, "default")));
+		Log.d("language", "preference: " +
+				sharedPreferences.getString(LANGUAGE, "default"));
 	}
 
 	private Localizer(Locale systemLocale, @Nullable Locale userLocale) {
 		this.systemLocale = systemLocale;
 		if (userLocale == null) locale = systemLocale;
 		else locale = userLocale;
+		Log.d("language", "Localizer() system locale: " + systemLocale);
+		Log.d("language", "Localizer() current locale: " + locale);
 	}
 
 	// Instantiate the Localizer.
 	public static synchronized void initialize(SharedPreferences prefs) {
+		Log.d("language", "Localizer#initialize()");
+		Log.d("language", "sdk: " + SDK_INT);
 		if (INSTANCE == null)
 			INSTANCE = new Localizer(prefs);
 	}
 
 	// Reinstantiate the Localizer with the system locale
 	public static synchronized void reinitialize() {
+		Log.d("language", "Localizer#reinitialize()");
 		if (INSTANCE != null)
 			INSTANCE = new Localizer(INSTANCE.systemLocale, null);
 	}
@@ -72,17 +80,20 @@ public class Localizer {
 	public Context setLocale(Context context) {
 		Resources res = context.getResources();
 		Configuration conf = res.getConfiguration();
+
 		Locale currentLocale;
 		if (SDK_INT >= 24) {
 			currentLocale = conf.getLocales().get(0);
 		} else
 			currentLocale = conf.locale;
+		Log.d("language", "current locale: " + currentLocale);
 		if (locale.equals(currentLocale))
 			return context;
+		Log.d("language", "set locale: " + locale);
 		Locale.setDefault(locale);
 		if (SDK_INT >= 17) {
 			conf.setLocale(locale);
-			context.createConfigurationContext(conf);
+			context = context.createConfigurationContext(conf);
 		} else
 			conf.locale = locale;
 		//noinspection deprecation

briar-android/src/main/java/org/briarproject/briar/android/activity/BaseActivity.java

@@ -2,6 +2,7 @@ package org.briarproject.briar.android.activity;
 
 import android.content.Context;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewGroup.LayoutParams;
@@ -36,6 +37,7 @@ import javax.inject.Inject;
 import androidx.annotation.LayoutRes;
 import androidx.annotation.UiThread;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.view.ContextThemeWrapper;
 import androidx.appcompat.widget.Toolbar;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
@@ -106,12 +108,24 @@ public abstract class BaseActivity extends AppCompatActivity
 		for (ActivityLifecycleController alc : lifecycleControllers) {
 			alc.onActivityCreate(this);
 		}
+
+		Log.d("language", "BaseActivity#onCreate()");
+		Context baseContext = getBaseContext();
+		Log.d("language", "Context: " + getBaseContext().toString());
+		if (baseContext instanceof ContextThemeWrapper) {
+			ContextThemeWrapper wrapper = (ContextThemeWrapper) baseContext;
+			Context wrapped = wrapper.getBaseContext();
+			Log.d("language", "Wrapped: " + wrapped.toString());
+		}
 	}
 
 	@Override
 	protected void attachBaseContext(Context base) {
+		Log.d("language", "BaseActivity#attachBaseContext()");
+		Log.d("language", "Context: " + base.toString());
 		super.attachBaseContext(
 				Localizer.getInstance().setLocale(base));
+		Localizer.getInstance().setLocale(this);
 	}
 
 	public ActivityComponent getActivityComponent() {

briar-android/src/main/java/org/briarproject/briar/android/activity/RequestCodes.java

@@ -16,7 +16,5 @@ public interface RequestCodes {
 	int REQUEST_KEYGUARD_UNLOCK = 12;
 	int REQUEST_ATTACH_IMAGE = 13;
 	int REQUEST_SAVE_ATTACHMENT = 14;
-	int REQUEST_EXPORT_LOG = 15;
-	int REQUEST_EXPORT_OLD_LOG = 16;
 
 }

briar-android/src/main/java/org/briarproject/briar/android/logging/BriefLogFormatter.java

@@ -1,4 +1,4 @@
-package org.briarproject.bramble.logging;
+package org.briarproject.briar.android.logging;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
@@ -47,7 +47,6 @@ public class BriefLogFormatter extends Formatter {
 			sb.append('\n');
 			appendThrowable(sb, t);
 		}
-		sb.append('\n');
 		return sb.toString();
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/reporting/BriarReportPrimer.java

@@ -14,21 +14,17 @@ import android.os.Looper;
 import org.acra.builder.ReportBuilder;
 import org.acra.builder.ReportPrimer;
 import org.briarproject.bramble.api.Pair;
-import org.briarproject.bramble.api.logging.PersistentLogManager;
 import org.briarproject.briar.BuildConfig;
-import org.briarproject.briar.android.AndroidComponent;
 import org.briarproject.briar.android.BriarApplication;
+import org.briarproject.briar.android.logging.BriefLogFormatter;
 
 import java.io.File;
-import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.util.LinkedHashMap;
-import java.util.LinkedList;
 import java.util.Map;
-import java.util.Scanner;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.FutureTask;
@@ -41,7 +37,6 @@ import static android.bluetooth.BluetoothAdapter.SCAN_MODE_CONNECTABLE;
 import static android.bluetooth.BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE;
 import static android.content.Context.ACTIVITY_SERVICE;
 import static android.content.Context.CONNECTIVITY_SERVICE;
-import static android.content.Context.MODE_PRIVATE;
 import static android.content.Context.WIFI_P2P_SERVICE;
 import static android.content.Context.WIFI_SERVICE;
 import static android.net.ConnectivityManager.TYPE_MOBILE;
@@ -56,8 +51,6 @@ import static org.briarproject.bramble.util.StringUtils.isNullOrEmpty;
 
 public class BriarReportPrimer implements ReportPrimer {
 
-	private static final int MAX_PERSISTED_LOG_LINES = 1_000;
-
 	@Override
 	public void primeReport(@NonNull Context ctx,
 			@NonNull ReportBuilder builder) {
@@ -88,23 +81,13 @@ public class BriarReportPrimer implements ReportPrimer {
 			// Log
 			BriarApplication app =
 					(BriarApplication) ctx.getApplicationContext();
-			AndroidComponent appComponent = app.getApplicationComponent();
-			PersistentLogManager logManager =
-					appComponent.persistentLogManager();
-			Formatter formatter = appComponent.formatter();
-
 			StringBuilder sb = new StringBuilder();
+			Formatter formatter = new BriefLogFormatter();
 			for (LogRecord record : app.getRecentLogRecords()) {
-				sb.append(formatter.format(record));
+				sb.append(formatter.format(record)).append('\n');
 			}
 			customData.put("Log", sb.toString());
 
-			customData.put("Persisted log",
-					getPersistedLog(ctx, logManager, false));
-
-			customData.put("Previous persisted log",
-					getPersistedLog(ctx, logManager, true));
-
 			// System memory
 			Object o = ctx.getSystemService(ACTIVITY_SERVICE);
 			ActivityManager am = (ActivityManager) o;
@@ -269,27 +252,6 @@ public class BriarReportPrimer implements ReportPrimer {
 
 			return unmodifiableMap(customData);
 		}
-
-		private String getPersistedLog(Context ctx,
-				PersistentLogManager logManager, boolean old) {
-			File logDir = ctx.getDir("log", MODE_PRIVATE);
-			StringBuilder sb = new StringBuilder();
-			try {
-				Scanner scanner = logManager.getPersistedLog(logDir, old);
-				LinkedList<String> lines = new LinkedList<>();
-				int numLines = 0;
-				while (scanner.hasNextLine()) {
-					lines.add(scanner.nextLine());
-					if (numLines == MAX_PERSISTED_LOG_LINES) lines.pollFirst();
-					else numLines++;
-				}
-				scanner.close();
-				for (String line : lines) sb.append(line).append('\n');
-			} catch (IOException e) {
-				sb.append("Could not recover persisted log: ").append(e);
-			}
-			return sb.toString();
-		}
 	}
 
 	private static class SingleShotAndroidExecutor extends Thread {

briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsActivity.java

@@ -1,65 +1,18 @@
 package org.briarproject.briar.android.settings;
 
-import android.content.Intent;
-import android.net.Uri;
 import android.os.Bundle;
 import android.view.MenuItem;
-import android.widget.Toast;
 
-import org.briarproject.bramble.api.lifecycle.IoExecutor;
-import org.briarproject.bramble.api.logging.PersistentLogManager;
-import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
-import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.activity.BriarActivity;
 
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.PrintWriter;
-import java.util.Scanner;
-import java.util.concurrent.Executor;
-import java.util.logging.Logger;
-
-import javax.annotation.Nullable;
-import javax.inject.Inject;
-
-import androidx.annotation.RequiresApi;
 import androidx.appcompat.app.ActionBar;
 
-import static android.content.Intent.ACTION_CREATE_DOCUMENT;
-import static android.content.Intent.CATEGORY_OPENABLE;
-import static android.content.Intent.EXTRA_TITLE;
-import static android.os.Build.VERSION.SDK_INT;
-import static android.os.Environment.DIRECTORY_DOWNLOADS;
-import static android.os.Environment.getExternalStoragePublicDirectory;
-import static android.widget.Toast.LENGTH_LONG;
-import static java.util.logging.Level.WARNING;
-import static java.util.logging.Logger.getLogger;
-import static org.briarproject.bramble.util.LogUtils.logException;
-import static org.briarproject.briar.android.activity.RequestCodes.REQUEST_EXPORT_LOG;
-import static org.briarproject.briar.android.activity.RequestCodes.REQUEST_EXPORT_OLD_LOG;
-
-@MethodsNotNullByDefault
-@ParametersNotNullByDefault
 public class SettingsActivity extends BriarActivity {
 
-	private static final Logger LOG =
-			getLogger(SettingsActivity.class.getName());
-
-	private static final String LOG_EXPORT_FILENAME = "briar-log.txt";
-
-	@Inject
-	@IoExecutor
-	Executor ioExecutor;
-
-	@Inject
-	PersistentLogManager logManager;
-
 	@Override
-	public void onCreate(@Nullable Bundle bundle) {
+	public void onCreate(Bundle bundle) {
 		super.onCreate(bundle);
 
 		ActionBar actionBar = getSupportActionBar();
@@ -84,96 +37,4 @@ public class SettingsActivity extends BriarActivity {
 		}
 		return false;
 	}
-
-	@Override
-	protected void onActivityResult(int request, int result,
-			@Nullable Intent data) {
-		super.onActivityResult(request, result, data);
-		if (request == REQUEST_EXPORT_LOG && result == RESULT_OK &&
-				data != null && data.getData() != null) {
-			exportLog(false, data.getData());
-		} else if (request == REQUEST_EXPORT_OLD_LOG && result == RESULT_OK &&
-				data != null && data.getData() != null) {
-			exportLog(true, data.getData());
-		}
-	}
-
-	private void exportLog(boolean old, Uri uri) {
-		copyLog(old, () -> getOutputStream(uri));
-	}
-
-	private void copyLog(boolean old, OutputStreamProvider osp) {
-		ioExecutor.execute(() -> {
-			try {
-				File logDir = getApplication().getDir("log", MODE_PRIVATE);
-				Scanner scanner = logManager.getPersistedLog(logDir, old);
-				if (!scanner.hasNextLine()) {
-					scanner.close();
-					runOnUiThreadUnlessDestroyed(() ->
-							Toast.makeText(getApplication(), "Log is empty",
-									LENGTH_LONG).show());
-					return;
-				}
-				PrintWriter w = new PrintWriter(osp.getOutputStream());
-				while (scanner.hasNextLine()) w.println(scanner.nextLine());
-				w.flush();
-				w.close();
-				scanner.close();
-				runOnUiThreadUnlessDestroyed(() ->
-						Toast.makeText(getApplication(), "Log exported",
-								LENGTH_LONG).show());
-			} catch (IOException e) {
-				logException(LOG, WARNING, e);
-				runOnUiThreadUnlessDestroyed(() ->
-						Toast.makeText(getApplication(), "Failed to export log",
-								LENGTH_LONG).show());
-			}
-		});
-	}
-
-	void onExportLogClick(boolean old) {
-		if (SDK_INT >= 19) {
-			Intent intent = getExportLogIntent();
-			int request = old ? REQUEST_EXPORT_OLD_LOG : REQUEST_EXPORT_LOG;
-			startActivityForResult(intent, request);
-		} else {
-			exportLog(old);
-		}
-	}
-
-	@RequiresApi(api = 19)
-	private Intent getExportLogIntent() {
-		Intent intent = new Intent(ACTION_CREATE_DOCUMENT);
-		intent.addCategory(CATEGORY_OPENABLE);
-		intent.setType("text/plain");
-		intent.putExtra(EXTRA_TITLE, LOG_EXPORT_FILENAME);
-		return intent;
-	}
-
-	private void exportLog(boolean old) {
-		File file = getLogOutputFile();
-		copyLog(old, () -> getOutputStream(file));
-	}
-
-	private File getLogOutputFile() {
-		File path = getExternalStoragePublicDirectory(DIRECTORY_DOWNLOADS);
-		//noinspection ResultOfMethodCallIgnored
-		path.mkdirs();
-		return new File(path, LOG_EXPORT_FILENAME);
-	}
-
-	private OutputStream getOutputStream(File file) throws IOException {
-		return new FileOutputStream(file);
-	}
-
-	private OutputStream getOutputStream(Uri uri) throws IOException {
-		OutputStream os =
-				getApplication().getContentResolver().openOutputStream(uri);
-		if (os == null) throw new IOException();
-		return os;
-	}
-
-	private interface OutputStreamProvider {
-		OutputStream getOutputStream() throws IOException;
-	}
 }

briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsFragment.java

@@ -1,6 +1,5 @@
 package org.briarproject.briar.android.settings;
 
-import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.app.AlertDialog;
 import android.content.Context;
@@ -75,7 +74,6 @@ import static android.widget.Toast.LENGTH_SHORT;
 import static androidx.core.view.ViewCompat.LAYOUT_DIRECTION_LTR;
 import static java.util.logging.Level.INFO;
 import static java.util.logging.Level.WARNING;
-import static java.util.logging.Logger.getLogger;
 import static org.briarproject.bramble.api.plugin.Plugin.PREF_PLUGIN_ENABLE;
 import static org.briarproject.bramble.api.plugin.TorConstants.DEFAULT_PREF_TOR_MOBILE;
 import static org.briarproject.bramble.api.plugin.TorConstants.DEFAULT_PREF_TOR_NETWORK;
@@ -135,7 +133,7 @@ public class SettingsFragment extends PreferenceFragmentCompat
 			"pref_key_tor_only_when_charging";
 
 	private static final Logger LOG =
-			getLogger(SettingsFragment.class.getName());
+			Logger.getLogger(SettingsFragment.class.getName());
 
 	private SettingsActivity listener;
 	private ListPreference language;
@@ -253,25 +251,8 @@ public class SettingsFragment extends PreferenceFragmentCompat
 						throw new RuntimeException("Boom!");
 					}
 			);
-			findPreference("pref_key_export_log").setOnPreferenceClickListener(
-					preference -> {
-						((SettingsActivity) requireActivity())
-								.onExportLogClick(false);
-						return true;
-					}
-			);
-			findPreference("pref_key_export_old_log")
-					.setOnPreferenceClickListener(
-							preference -> {
-								((SettingsActivity) requireActivity())
-										.onExportLogClick(true);
-								return true;
-							}
-					);
 		} else {
 			findPreference("pref_key_explode").setVisible(false);
-			findPreference("pref_key_export_log").setVisible(false);
-			findPreference("pref_key_export_old_log").setVisible(false);
 			findPreference("pref_key_test_data").setVisible(false);
 			PreferenceGroup testing =
 					findPreference("pref_key_explode").getParent();
@@ -350,7 +331,6 @@ public class SettingsFragment extends PreferenceFragmentCompat
 		return direction == LAYOUT_DIRECTION_LTR;
 	}
 
-	@SuppressLint("StringFormatInvalid")
 	private void setTorNetworkSummary(int torNetworkSetting) {
 		if (torNetworkSetting != PREF_TOR_NETWORK_AUTOMATIC) {
 			torNetwork.setSummary("%s");  // use setting value

briar-android/src/main/res/xml/settings.xml

@@ -227,16 +227,6 @@
 				android:targetPackage="@string/app_package"/>
 		</Preference>
 
-		<Preference
-			android:key="pref_key_export_log"
-			android:title="Export Current Log to SD Card"
-			app:iconSpaceReserved="false"/>
-
-		<Preference
-			android:key="pref_key_export_old_log"
-			android:title="Export Previous Log to SD Card"
-			app:iconSpaceReserved="false"/>
-
 		<Preference
 			android:key="pref_key_explode"
 			android:title="Crash"

briar-headless/README.md

@@ -68,8 +68,7 @@ Returns a JSON array of contacts:
     "alias" : "A local nickname",
     "handshakePublicKey": "XnYRd7a7E4CTqgAvh4hCxh/YZ0EPscxknB9ZcEOpSzY=",
     "verified": true,
-    "lastChatActivity": 1557838312175,
-    "connected": false
+    "lastChatActivity": 1557838312175
 }
 ```
 
@@ -393,19 +392,3 @@ will no longer work on making this `pendingContact` become `contact`.
     "type": "event"
 }
 ```
-
-### A contact connected or disconnected
-
-When Briar establishes a connection to a contact (the contact comes online),
-it sends a `ContactConnectedEvent`.
-When the last connection is lost (the contact goes offline), it sends a `ContactDisconnectedEvent`.
-
-```json
-{
-    "data": {
-        "contactId": 1
-    },
-    "name": "ContactConnectedEvent",
-    "type": "event"
-}
-```

briar-headless/src/main/java/org/briarproject/briar/headless/contact/ContactControllerImpl.kt

@@ -4,7 +4,6 @@ import com.fasterxml.jackson.databind.ObjectMapper
 import io.javalin.http.BadRequestResponse
 import io.javalin.http.Context
 import io.javalin.http.NotFoundResponse
-import org.briarproject.bramble.api.connection.ConnectionRegistry
 import org.briarproject.bramble.api.contact.ContactManager
 import org.briarproject.bramble.api.contact.HandshakeLinkConstants.LINK_REGEX
 import org.briarproject.bramble.api.contact.PendingContactId
@@ -17,8 +16,6 @@ import org.briarproject.bramble.api.db.NoSuchPendingContactException
 import org.briarproject.bramble.api.event.Event
 import org.briarproject.bramble.api.event.EventListener
 import org.briarproject.bramble.api.identity.AuthorConstants.MAX_AUTHOR_NAME_LENGTH
-import org.briarproject.bramble.api.plugin.event.ContactConnectedEvent
-import org.briarproject.bramble.api.plugin.event.ContactDisconnectedEvent
 import org.briarproject.bramble.util.StringUtils.toUtf8
 import org.briarproject.briar.api.conversation.ConversationManager
 import org.briarproject.briar.headless.event.WebSocketController
@@ -35,8 +32,6 @@ internal const val EVENT_CONTACT_ADDED = "ContactAddedEvent"
 internal const val EVENT_PENDING_CONTACT_STATE_CHANGED = "PendingContactStateChangedEvent"
 internal const val EVENT_PENDING_CONTACT_ADDED = "PendingContactAddedEvent"
 internal const val EVENT_PENDING_CONTACT_REMOVED = "PendingContactRemovedEvent"
-internal const val EVENT_CONTACT_CONNECTED = "ContactConnectedEvent"
-internal const val EVENT_CONTACT_DISCONNECTED = "ContactDisconnectedEvent"
 
 @Immutable
 @Singleton
@@ -46,8 +41,7 @@ constructor(
     private val contactManager: ContactManager,
     private val conversationManager: ConversationManager,
     private val objectMapper: ObjectMapper,
-    private val webSocket: WebSocketController,
-    private val connectionRegistry: ConnectionRegistry
+    private val webSocket: WebSocketController
 ) : ContactController, EventListener {
 
     override fun eventOccurred(e: Event) = when (e) {
@@ -63,12 +57,6 @@ constructor(
         is PendingContactRemovedEvent -> {
             webSocket.sendEvent(EVENT_PENDING_CONTACT_REMOVED, e.output())
         }
-        is ContactConnectedEvent -> {
-            webSocket.sendEvent(EVENT_CONTACT_CONNECTED, e.output())
-        }
-        is ContactDisconnectedEvent -> {
-            webSocket.sendEvent(EVENT_CONTACT_DISCONNECTED, e.output())
-        }
         else -> {
         }
     }
@@ -76,8 +64,7 @@ constructor(
     override fun list(ctx: Context): Context {
         val contacts = contactManager.contacts.map { contact ->
             val latestMsgTime = conversationManager.getGroupCount(contact.id).latestMsgTime
-            val connected = connectionRegistry.isConnected(contact.id)
-            contact.output(latestMsgTime, connected)
+            contact.output(latestMsgTime)
         }
         return ctx.json(contacts)
     }

briar-headless/src/main/java/org/briarproject/briar/headless/contact/OutputContact.kt

@@ -2,17 +2,15 @@ package org.briarproject.briar.headless.contact
 
 import org.briarproject.bramble.api.contact.Contact
 import org.briarproject.bramble.api.contact.event.ContactAddedEvent
-import org.briarproject.bramble.api.plugin.event.ContactConnectedEvent
-import org.briarproject.bramble.api.plugin.event.ContactDisconnectedEvent
 import org.briarproject.bramble.identity.output
+import org.briarproject.briar.api.conversation.ConversationManager
 import org.briarproject.briar.headless.json.JsonDict
 
-internal fun Contact.output(latestMsgTime: Long, connected: Boolean) = JsonDict(
+internal fun Contact.output(latestMsgTime: Long) = JsonDict(
     "contactId" to id.int,
     "author" to author.output(),
     "verified" to isVerified,
-    "lastChatActivity" to latestMsgTime,
-    "connected" to connected
+    "lastChatActivity" to latestMsgTime
 ).apply {
     alias?.let { put("alias", it) }
     handshakePublicKey?.let { put("handshakePublicKey", it.encoded) }
@@ -22,11 +20,3 @@ internal fun ContactAddedEvent.output() = JsonDict(
     "contactId" to contactId.int,
     "verified" to isVerified
 )
-
-internal fun ContactConnectedEvent.output() = JsonDict(
-    "contactId" to contactId.int
-)
-
-internal fun ContactDisconnectedEvent.output() = JsonDict(
-    "contactId" to contactId.int
-)

briar-headless/src/test/java/org/briarproject/briar/headless/ControllerTest.kt

@@ -4,7 +4,6 @@ import com.fasterxml.jackson.databind.ObjectMapper
 import io.javalin.http.Context
 import io.javalin.http.util.ContextUtil
 import io.mockk.mockk
-import org.briarproject.bramble.api.connection.ConnectionRegistry
 import org.briarproject.bramble.api.contact.Contact
 import org.briarproject.bramble.api.contact.ContactManager
 import org.briarproject.bramble.api.identity.Author
@@ -27,7 +26,6 @@ abstract class ControllerTest {
     protected val contactManager = mockk<ContactManager>()
     protected val conversationManager = mockk<ConversationManager>()
     protected val identityManager = mockk<IdentityManager>()
-    protected val connectionRegistry = mockk<ConnectionRegistry>()
     protected val clock = mockk<Clock>()
     protected val ctx = mockk<Context>()
 

briar-headless/src/test/java/org/briarproject/briar/headless/contact/ContactControllerTest.kt

@@ -20,8 +20,6 @@ import org.briarproject.bramble.api.contact.event.PendingContactStateChangedEven
 import org.briarproject.bramble.api.db.NoSuchContactException
 import org.briarproject.bramble.api.db.NoSuchPendingContactException
 import org.briarproject.bramble.api.identity.AuthorConstants.MAX_AUTHOR_NAME_LENGTH
-import org.briarproject.bramble.api.plugin.event.ContactConnectedEvent
-import org.briarproject.bramble.api.plugin.event.ContactDisconnectedEvent
 import org.briarproject.bramble.identity.output
 import org.briarproject.bramble.test.TestUtils.getPendingContact
 import org.briarproject.bramble.test.TestUtils.getRandomBytes
@@ -31,7 +29,6 @@ import org.briarproject.briar.headless.json.JsonDict
 import org.junit.jupiter.api.Assertions.assertNotNull
 import org.junit.jupiter.api.Assertions.assertThrows
 import org.junit.jupiter.api.Test
-import kotlin.random.Random
 
 internal class ContactControllerTest : ControllerTest() {
 
@@ -41,8 +38,7 @@ internal class ContactControllerTest : ControllerTest() {
         contactManager,
         conversationManager,
         objectMapper,
-        webSocketController,
-        connectionRegistry
+        webSocketController
     )
 
     @Test
@@ -54,11 +50,9 @@ internal class ContactControllerTest : ControllerTest() {
 
     @Test
     fun testList() {
-        val connected = Random.nextBoolean()
         every { contactManager.contacts } returns listOf(contact)
         every { conversationManager.getGroupCount(contact.id).latestMsgTime } returns timestamp
-        every { connectionRegistry.isConnected(contact.id) } returns connected
-        every { ctx.json(listOf(contact.output(timestamp, connected))) } returns ctx
+        every { ctx.json(listOf(contact.output(timestamp))) } returns ctx
         controller.list(ctx)
     }
 
@@ -273,37 +267,8 @@ internal class ContactControllerTest : ControllerTest() {
         controller.eventOccurred(event)
     }
 
-    @Test
-    fun testContactConnectedEvent() {
-        val event = ContactConnectedEvent(contact.id)
-
-        every {
-            webSocketController.sendEvent(
-                EVENT_CONTACT_CONNECTED,
-                event.output()
-            )
-        } just runs
-
-        controller.eventOccurred(event)
-    }
-
-    @Test
-    fun testContactDisconnectedEvent() {
-        val event = ContactDisconnectedEvent(contact.id)
-
-        every {
-            webSocketController.sendEvent(
-                EVENT_CONTACT_DISCONNECTED,
-                event.output()
-            )
-        } just runs
-
-        controller.eventOccurred(event)
-    }
-
     @Test
     fun testOutputContact() {
-        val connected = Random.nextBoolean()
         assertNotNull(contact.handshakePublicKey)
         val json = """
             {
@@ -312,11 +277,10 @@ internal class ContactControllerTest : ControllerTest() {
                 "alias" : "${contact.alias}",
                 "handshakePublicKey": ${toJson(contact.handshakePublicKey!!.encoded)},
                 "verified": ${contact.isVerified},
-                "lastChatActivity": $timestamp,
-                "connected": $connected
+                "lastChatActivity": $timestamp
             }
         """
-        assertJsonEquals(json, contact.output(timestamp, connected))
+        assertJsonEquals(json, contact.output(timestamp))
     }
 
     @Test
@@ -394,26 +358,4 @@ internal class ContactControllerTest : ControllerTest() {
         assertJsonEquals(json, event.output())
     }
 
-    @Test
-    fun testOutputContactConnectedEvent() {
-        val event = ContactConnectedEvent(contact.id)
-        val json = """
-            {
-                "contactId": ${contact.id.int}
-            }
-        """
-        assertJsonEquals(json, event.output())
-    }
-
-    @Test
-    fun testOutputContactDisconnectedEvent() {
-        val event = ContactDisconnectedEvent(contact.id)
-        val json = """
-            {
-                "contactId": ${contact.id.int}
-            }
-        """
-        assertJsonEquals(json, event.output())
-    }
-
 }