Hide menu items on API < 19.

.gitlab-ci.yml

@@ -32,9 +32,8 @@ test:
   extends: .base-test
   stage: test
   script:
-    - ./gradlew -Djava.security.egd=file:/dev/urandom animalSnifferMain animalSnifferTest
-    - ./gradlew -Djava.security.egd=file:/dev/urandom assembleOfficialDebug :briar-headless:linuxJars
-    - ./gradlew -Djava.security.egd=file:/dev/urandom compileOfficialDebugAndroidTestSources compileScreenshotDebugAndroidTestSources check
+    - ./gradlew --no-daemon -Djava.security.egd=file:/dev/urandom animalSnifferMain animalSnifferTest
+    - ./gradlew --no-daemon -Djava.security.egd=file:/dev/urandom compileOfficialDebugAndroidTestSources compileScreenshotDebugAndroidTestSources check
   rules:
     - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
       when: always
@@ -62,7 +61,7 @@ android test:
     when: on_failure
   rules:
     - if: '$CI_PIPELINE_SOURCE == "schedule"'
-      when: manual
+      when: on_success
     - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
       changes:
         - briar-android/**/*
@@ -85,44 +84,35 @@ test_reproducible:
 
 .optional_tests:
   stage: optional_tests
-  extends: .base-test
+  before_script:
+    - set -e
+    - export GRADLE_USER_HOME=$PWD/.gradle
+
+  cache:
+    key: "$CI_COMMIT_REF_SLUG"
+    paths:
+      - .gradle/wrapper
+      - .gradle/caches
+
+  script:
+    - OPTIONAL_TESTS=org.briarproject.bramble.plugin.tor.BridgeTest ./gradlew --info bramble-java:test --tests BridgeTest
+
+  after_script:
+    # these file change every time but should not be cached
+    - rm -f $GRADLE_USER_HOME/caches/modules-2/modules-2.lock
+    - rm -fr $GRADLE_USER_HOME/caches/*/plugin-resolution/
 
 bridge test:
   extends: .optional_tests
   rules:
     - if: '$CI_PIPELINE_SOURCE == "schedule"'
       when: on_success
-      allow_failure: false
+      allow_failure: true
     - if: '$CI_COMMIT_TAG == null'
       when: manual
       allow_failure: true
-  script:
-    - OPTIONAL_TESTS=org.briarproject.bramble.plugin.tor.BridgeTest ./gradlew --info bramble-java:test --tests BridgeTest
-  timeout: 3h
-
-mailbox integration test:
-  extends: .optional_tests
-  rules:
-    - if: '$CI_PIPELINE_SOURCE == "schedule"'
-      when: on_success
-    - if: '$CI_COMMIT_TAG == null'
-      when: manual
-      allow_failure: true # TODO figure out how not to allow failure while leaving this optional
-  script:
-    # start mailbox
-    - cd /opt && git clone --depth 1 https://code.briarproject.org/briar/briar-mailbox.git briar-mailbox
-    - cd briar-mailbox
-    - mkdir -p /root/.local/share # create directory that mailbox (currently) expects to exist
-    - ./gradlew run --args="--debug --setup-token 54686973206973206120736574757020746f6b656e20666f722042726961722e" &
-    # run mailbox integration test once mailbox has started
-    - cd "$CI_PROJECT_DIR"
-    - bramble-core/src/test/bash/wait-for-mailbox.sh
-    - OPTIONAL_TESTS=org.briarproject.bramble.mailbox.MailboxIntegrationTest ./gradlew --info bramble-core:test --tests MailboxIntegrationTest
 
 pre_release_tests:
   extends: .optional_tests
-  script:
-    - OPTIONAL_TESTS=org.briarproject.bramble.plugin.tor.BridgeTest ./gradlew --info bramble-java:test --tests BridgeTest
-  timeout: 3h
   only:
     - tags

README.md

@@ -22,15 +22,6 @@ our site.
 
 [Wiki](https://code.briarproject.org/briar/briar/-/wikis/home)
 
-## Reproducible builds
-
-We provide [docker images](https://code.briarproject.org/briar/briar-reproducer#briar-reproducer)
-to ease the task of verifying that the published APK binaries
-include nothing but our publicly available source code.
-
-You can either use those images or use them as a blueprint to build your own environment
-for reproduction.
-
 ## Donate
 
 [![Donate using Liberapay](https://briarproject.org/img/liberapay.svg)](https://liberapay.com/Briar/donate) [![Flattr this](https://briarproject.org/img/flattr-badge-large.png "Flattr this")](https://flattr.com/t/592836/)   

bramble-android/build.gradle

@@ -15,8 +15,8 @@ android {
 	defaultConfig {
 		minSdkVersion 16
 		targetSdkVersion 30
-		versionCode 10406
-		versionName "1.4.6"
+		versionCode 10401
+		versionName "1.4.1"
 		consumerProguardFiles 'proguard-rules.txt'
 
 		testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -43,7 +43,7 @@ configurations {
 dependencies {
 	implementation project(path: ':bramble-core', configuration: 'default')
 	tor "org.briarproject:tor-android:$tor_version"
-	tor "org.briarproject:obfs4proxy-android:$obfs4proxy_version"
+	tor "org.briarproject:obfs4proxy-android:$obfs4proxy_version@zip"
 
 	annotationProcessor "com.google.dagger:dagger-compiler:$dagger_version"
 
@@ -53,7 +53,7 @@ dependencies {
 	testImplementation "junit:junit:$junit_version"
 	testImplementation "org.jmock:jmock:$jmock_version"
 	testImplementation "org.jmock:jmock-junit4:$jmock_version"
-	testImplementation "org.jmock:jmock-imposters:$jmock_version"
+	testImplementation "org.jmock:jmock-legacy:$jmock_version"
 }
 
 def torBinariesDir = 'src/main/res/raw'
@@ -70,6 +70,11 @@ clean.dependsOn cleanTorBinaries
 
 task unpackTorBinaries {
 	doLast {
+		copy {
+			from configurations.tor.collect { zipTree(it) }
+			into torBinariesDir
+			include 'geoip.zip'
+		}
 		configurations.tor.each { outer ->
 			zipTree(outer).each { inner ->
 				if (inner.name.endsWith('_arm_pie.zip')) {

bramble-android/proguard-rules.txt

@@ -1,8 +1,6 @@
-# Keep the H2 classes that are loaded via reflection
--keep class org.h2.Driver { *; }
--keep class org.h2.engine.Engine { *; }
--keep class org.h2.store.fs.** { *; }
-# Don't warn about unused dependencies of H2 classes
+-keep,includedescriptorclasses class org.briarproject.** { *; }
+
+-keep class org.h2.** { *; }
 -dontwarn org.h2.**
 -dontnote org.h2.**
 
@@ -17,4 +15,5 @@
 -dontwarn sun.misc.Unsafe
 -dontnote com.google.common.**
 
--dontwarn com.fasterxml.jackson.databind.ext.Java7SupportImpl
+# UPnP library isn't used
+-dontwarn org.bitlet.weupnp.**

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

@@ -5,12 +5,15 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
 
+import org.briarproject.bramble.api.FeatureFlags;
 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;
@@ -23,14 +26,18 @@ import javax.inject.Inject;
 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.AndroidUtils.getPersistentLogDir;
 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 =
-			Logger.getLogger(AndroidAccountManager.class.getName());
+			getLogger(AndroidAccountManager.class.getName());
 
 	/**
 	 * Directories that shouldn't be deleted when deleting the user's account.
@@ -40,13 +47,22 @@ class AndroidAccountManager extends AccountManagerImpl
 
 	protected final Context appContext;
 	private final SharedPreferences prefs;
+	private final PersistentLogManager logManager;
+	private final FeatureFlags featureFlags;
 
 	@Inject
-	AndroidAccountManager(DatabaseConfig databaseConfig,
-			CryptoComponent crypto, IdentityManager identityManager,
-			SharedPreferences prefs, Application app) {
+	AndroidAccountManager(
+			DatabaseConfig databaseConfig,
+			CryptoComponent crypto,
+			IdentityManager identityManager,
+			SharedPreferences prefs,
+			PersistentLogManager logManager,
+			FeatureFlags featureFlags,
+			Application app) {
 		super(databaseConfig, crypto, identityManager);
 		this.prefs = prefs;
+		this.logManager = logManager;
+		this.featureFlags = featureFlags;
 		appContext = app.getApplicationContext();
 	}
 
@@ -74,6 +90,9 @@ class AndroidAccountManager extends AccountManagerImpl
 				LOG.info("Contents of account directory after deleting:");
 				logFileOrDir(LOG, INFO, getDataDir());
 			}
+			if (featureFlags.shouldEnablePersistentLogs()) {
+				replacePersistentLogger();
+			}
 		}
 	}
 
@@ -134,4 +153,13 @@ class AndroidAccountManager extends AccountManagerImpl
 	private void addIfNotNull(Set<File> files, @Nullable File file) {
 		if (file != null) files.add(file);
 	}
+
+	private void replacePersistentLogger() {
+		File logDir = getPersistentLogDir(appContext);
+		try {
+			logManager.addLogHandler(logDir, getLogger(""));
+		} catch (IOException e) {
+			logException(LOG, WARNING, e);
+		}
+	}
 }

bramble-android/src/main/java/org/briarproject/bramble/plugin/file/AndroidRemovableDrivePlugin.java

@@ -39,6 +39,6 @@ class AndroidRemovableDrivePlugin extends RemovableDrivePlugin {
 	OutputStream openOutputStream(TransportProperties p) throws IOException {
 		String uri = p.get(PROP_URI);
 		if (isNullOrEmpty(uri)) throw new IllegalArgumentException();
-		return app.getContentResolver().openOutputStream(Uri.parse(uri), "wt");
+		return app.getContentResolver().openOutputStream(Uri.parse(uri));
 	}
 }

bramble-android/src/main/java/org/briarproject/bramble/util/AndroidUtils.java

@@ -111,10 +111,14 @@ public class AndroidUtils {
 		return ctx.getDir(STORED_REPORTS, MODE_PRIVATE);
 	}
 
-	public static File getLogcatFile(Context ctx) {
+	public static File getTemporaryLogFile(Context ctx) {
 		return new File(ctx.getFilesDir(), STORED_LOGCAT);
 	}
 
+	public static File getPersistentLogDir(Context ctx) {
+		return ctx.getDir("log", MODE_PRIVATE);
+	}
+
 	/**
 	 * Returns an array of supported content types for image attachments.
 	 */

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

@@ -4,18 +4,22 @@ import android.app.Application;
 import android.content.SharedPreferences;
 import android.content.pm.ApplicationInfo;
 
+import org.briarproject.bramble.api.FeatureFlags;
 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.imposters.ByteBuddyClassImposteriser;
+import org.jmock.lib.legacy.ClassImposteriser;
 import org.junit.After;
 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;
@@ -27,6 +31,10 @@ 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 FeatureFlags featureFlags =
+			context.mock(FeatureFlags.class);
 	private final DatabaseConfig databaseConfig =
 			context.mock(DatabaseConfig.class);
 	private final CryptoComponent crypto = context.mock(CryptoComponent.class);
@@ -40,11 +48,12 @@ 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;
 
 	public AndroidAccountManagerTest() {
-		context.setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
+		context.setImposteriser(ClassImposteriser.INSTANCE);
 		app = context.mock(Application.class);
 		applicationInfo = new ApplicationInfo();
 		applicationInfo.dataDir = testDir.getAbsolutePath();
@@ -61,7 +70,7 @@ public class AndroidAccountManagerTest extends BrambleMockTestCase {
 			will(returnValue(app));
 		}});
 		accountManager = new AndroidAccountManager(databaseConfig, crypto,
-				identityManager, prefs, app) {
+				identityManager, prefs, logManager, featureFlags, app) {
 			@Override
 			SharedPreferences getDefaultSharedPreferences() {
 				return defaultPrefs;
@@ -109,10 +118,17 @@ public class AndroidAccountManagerTest extends BrambleMockTestCase {
 			will(returnValue(cacheDir));
 			oneOf(app).getExternalCacheDir();
 			will(returnValue(externalCacheDir));
+			oneOf(featureFlags).shouldEnablePersistentLogs();
+			will(returnValue(true));
+			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());
@@ -130,6 +146,7 @@ public class AndroidAccountManagerTest extends BrambleMockTestCase {
 
 		assertFalse(dbDir.exists());
 		assertFalse(keyDir.exists());
+		assertFalse(logDir.exists());
 		assertTrue(codeCacheDir.exists());
 		assertTrue(codeCacheFile.exists());
 		assertTrue(libDir.exists());

bramble-android/witness.gradle

@@ -87,8 +87,8 @@ dependencyVerification {
         'org.apache.httpcomponents:httpmime:4.5.6:httpmime-4.5.6.jar:0b2b1102c18d3c7e05a77214b9b7501a6f6056174ae5604e0e256776eda7553e',
         'org.bouncycastle:bcpkix-jdk15on:1.56:bcpkix-jdk15on-1.56.jar:7043dee4e9e7175e93e0b36f45b1ec1ecb893c5f755667e8b916eb8dd201c6ca',
         'org.bouncycastle:bcprov-jdk15on:1.56:bcprov-jdk15on-1.56.jar:963e1ee14f808ffb99897d848ddcdb28fa91ddda867eb18d303e82728f878349',
-        'org.briarproject:obfs4proxy-android:0.0.12:obfs4proxy-android-0.0.12.jar:84159d2a4668abc40e3fccaa1f6fa0c04892863f9eb80a866ac8928d9f9a7e89',
-        'org.briarproject:tor-android:0.4.5.12-2:tor-android-0.4.5.12-2.jar:8545dbcef2bb6aa89c32bb6f8ac51f7a64bce3ae85845b3578ffdeb9b206feb9',
+        'org.briarproject:obfs4proxy-android:0.0.12-dev-40245c4a:obfs4proxy-android-0.0.12-dev-40245c4a.zip:8ab05a8f8391be2cb5ab2b665c281a06d9e3a756bd0f95a40a36ca927866ea82',
+        'org.briarproject:tor-android:0.3.5.17:tor-android-0.3.5.17.jar:1888afc10a26b93d00a010ea27bf0b1b162a6d524688b08b98d70d14dc363b54',
         'org.checkerframework:checker-compat-qual:2.5.3:checker-compat-qual-2.5.3.jar:d76b9afea61c7c082908023f0cbc1427fab9abd2df915c8b8a3e7a509bccbc6d',
         'org.checkerframework:checker-qual:2.5.2:checker-qual-2.5.2.jar:64b02691c8b9d4e7700f8ee2e742dce7ea2c6e81e662b7522c9ee3bf568c040a',
         'org.checkerframework:checker-qual:3.5.0:checker-qual-3.5.0.jar:729990b3f18a95606fc2573836b6958bcdb44cb52bfbd1b7aa9c339cff35a5a4',

bramble-api/build.gradle

@@ -9,11 +9,11 @@ apply from: 'witness.gradle'
 dependencies {
 	implementation "com.google.dagger:dagger:$dagger_version"
 	implementation 'com.google.code.findbugs:jsr305:3.0.2'
-	implementation "com.fasterxml.jackson.core:jackson-annotations:$jackson_version"
 
 	testImplementation "junit:junit:$junit_version"
 	testImplementation "org.jmock:jmock:$jmock_version"
 	testImplementation "org.jmock:jmock-junit4:$jmock_version"
+	testImplementation "org.jmock:jmock-legacy:$jmock_version"
 
 	signature 'org.codehaus.mojo.signature:java16:1.1@signature'
 }

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

@@ -11,11 +11,5 @@ public interface FeatureFlags {
 
 	boolean shouldEnableDisappearingMessages();
 
-	boolean shouldEnableMailbox();
-
-	boolean shouldEnablePrivateGroupsInCore();
-
-	boolean shouldEnableForumsInCore();
-
-	boolean shouldEnableBlogsInCore();
+	boolean shouldEnablePersistentLogs();
 }

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

@@ -1,8 +1,16 @@
 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) {
@@ -52,4 +60,19 @@ 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/UniqueId.java

@@ -6,14 +6,14 @@ import javax.annotation.concurrent.ThreadSafe;
 
 @ThreadSafe
 @NotNullByDefault
-public class UniqueId extends Bytes {
+public abstract class UniqueId extends Bytes {
 
 	/**
 	 * The length of a unique identifier in bytes.
 	 */
 	public static final int LENGTH = 32;
 
-	public UniqueId(byte[] id) {
+	protected UniqueId(byte[] id) {
 		super(id);
 		if (id.length != LENGTH) throw new IllegalArgumentException();
 	}

bramble-api/src/main/java/org/briarproject/bramble/api/client/ClientHelper.java

@@ -9,7 +9,6 @@ import org.briarproject.bramble.api.data.BdfList;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.Transaction;
 import org.briarproject.bramble.api.identity.Author;
-import org.briarproject.bramble.api.mailbox.MailboxPropertiesUpdate;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.plugin.TransportId;
 import org.briarproject.bramble.api.properties.TransportProperties;
@@ -21,8 +20,6 @@ import java.security.GeneralSecurityException;
 import java.util.Collection;
 import java.util.Map;
 
-import javax.annotation.Nullable;
-
 @NotNullByDefault
 public interface ClientHelper {
 
@@ -126,18 +123,6 @@ public interface ClientHelper {
 	Map<TransportId, TransportProperties> parseAndValidateTransportPropertiesMap(
 			BdfDictionary properties) throws FormatException;
 
-	/**
-	 * Parse and validate the property dictionary of a Mailbox property update
-	 * message.
-	 *
-	 * @return the properties for using the Mailbox, or null if there is no
-	 * Mailbox available
-	 * @throws FormatException if the properties are not valid
-	 */
-	@Nullable
-	MailboxPropertiesUpdate parseAndValidateMailboxPropertiesUpdate(
-			BdfDictionary properties) throws FormatException;
-
 	/**
 	 * Retrieves the contact ID from the group metadata of the given contact
 	 * group.

bramble-api/src/main/java/org/briarproject/bramble/api/contact/ContactManager.java

@@ -107,32 +107,6 @@ public interface ContactManager {
 	 */
 	String getHandshakeLink() throws DbException;
 
-	/**
-	 * Returns the handshake link that needs to be sent to a contact we want
-	 * to add.
-	 */
-	String getHandshakeLink(Transaction txn) throws DbException;
-
-	/**
-	 * Creates a {@link PendingContact} from the given handshake link and
-	 * alias, adds it to the database and returns it.
-	 *
-	 * @param link The handshake link received from the pending contact
-	 * @param alias The alias the user has given this pending contact
-	 * @throws UnsupportedVersionException If the link uses a format version
-	 * that is not supported
-	 * @throws FormatException If the link is invalid
-	 * @throws GeneralSecurityException If the pending contact's handshake
-	 * public key is invalid
-	 * @throws ContactExistsException If a contact with the same handshake
-	 * public key already exists
-	 * @throws PendingContactExistsException If a pending contact with the same
-	 * handshake public key already exists
-	 */
-	PendingContact addPendingContact(Transaction txn, String link, String alias)
-			throws DbException, FormatException, GeneralSecurityException,
-			ContactExistsException, PendingContactExistsException;
-
 	/**
 	 * Creates a {@link PendingContact} from the given handshake link and
 	 * alias, adds it to the database and returns it.
@@ -166,24 +140,11 @@ public interface ContactManager {
 	Collection<Pair<PendingContact, PendingContactState>> getPendingContacts()
 			throws DbException;
 
-	/**
-	 * Returns a list of {@link PendingContact PendingContacts} and their
-	 * {@link PendingContactState states}.
-	 */
-	Collection<Pair<PendingContact, PendingContactState>> getPendingContacts(Transaction txn)
-			throws DbException;
-
 	/**
 	 * Removes a {@link PendingContact}.
 	 */
 	void removePendingContact(PendingContactId p) throws DbException;
 
-	/**
-	 * Removes a {@link PendingContact}.
-	 */
-	void removePendingContact(Transaction txn, PendingContactId p)
-			throws DbException;
-
 	/**
 	 * Returns the contact with the given ID.
 	 */

bramble-api/src/main/java/org/briarproject/bramble/api/contact/PendingContactId.java

@@ -3,6 +3,7 @@ package org.briarproject.bramble.api.contact;
 import org.briarproject.bramble.api.UniqueId;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
+import javax.annotation.Nullable;
 import javax.annotation.concurrent.ThreadSafe;
 
 /**
@@ -16,4 +17,9 @@ public class PendingContactId extends UniqueId {
 	public PendingContactId(byte[] id) {
 		super(id);
 	}
+
+	@Override
+	public boolean equals(@Nullable Object o) {
+		return o instanceof PendingContactId && super.equals(o);
+	}
 }

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

@@ -1,6 +1,5 @@
 package org.briarproject.bramble.api.crypto;
 
-import org.briarproject.bramble.api.UniqueId;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 import java.security.GeneralSecurityException;
@@ -11,8 +10,6 @@ import javax.annotation.Nullable;
 @NotNullByDefault
 public interface CryptoComponent {
 
-	UniqueId generateUniqueId();
-
 	SecretKey generateSecretKey();
 
 	SecureRandom getSecureRandom();
@@ -175,11 +172,9 @@ public interface CryptoComponent {
 	String asciiArmour(byte[] b, int lineLength);
 
 	/**
-	 * Encode the Onion given its public key. Specified here:
-	 * https://gitweb.torproject.org/torspec.git/tree/rend-spec-v3.txt?id=29245fd5#n2135
-	 *
-	 * @return the encoded onion, base32 chars
+	 * Encode the onion/hidden service address given its public key. As
+	 * specified here: https://gitweb.torproject.org/torspec.git/tree/rend-spec-v3.txt?id=29245fd5#n2135
 	 */
-	String encodeOnion(byte[] publicKey);
+	String encodeOnionAddress(byte[] publicKey);
 
 }

bramble-api/src/main/java/org/briarproject/bramble/api/db/DatabaseComponent.java

@@ -471,14 +471,6 @@ public interface DatabaseComponent extends TransactionManager {
 	Map<MessageId, Integer> getUnackedMessagesToSend(Transaction txn,
 			ContactId c) throws DbException;
 
-	/**
-	 * Resets the transmission count, expiry time and max latency of all messages
-	 * that are eligible to be sent to the given contact. This includes messages
-	 * that have already been sent and are not yet due for retransmission.
-	 */
-	void resetUnackedMessagesToSend(Transaction txn, ContactId c)
-			throws DbException;
-
 	/**
 	 * Returns the total length, including headers, of all messages that are
 	 * eligible to be sent to the given contact. This may include messages

bramble-api/src/main/java/org/briarproject/bramble/api/identity/AuthorId.java

@@ -21,4 +21,9 @@ public class AuthorId extends UniqueId {
 	public AuthorId(byte[] id) {
 		super(id);
 	}
+
+	@Override
+	public boolean equals(Object o) {
+		return o instanceof AuthorId && super.equals(o);
+	}
 }

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

@@ -0,0 +1,46 @@
+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 getPersistentLog(File dir, boolean old) throws IOException;
+}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/InvalidMailboxIdException.java

@@ -1,8 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-@NotNullByDefault
-public class InvalidMailboxIdException extends Exception {
-
-}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxAuthToken.java

@@ -1,24 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import javax.annotation.Nullable;
-import javax.annotation.concurrent.ThreadSafe;
-
-@ThreadSafe
-@NotNullByDefault
-public class MailboxAuthToken extends MailboxId {
-	public MailboxAuthToken(byte[] id) {
-		super(id);
-	}
-
-	/**
-	 * Creates a {@link MailboxAuthToken} from the given string.
-	 *
-	 * @throws InvalidMailboxIdException if token is not valid.
-	 */
-	public static MailboxAuthToken fromString(@Nullable String token)
-			throws InvalidMailboxIdException {
-		return new MailboxAuthToken(bytesFromString(token));
-	}
-}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxFileId.java

@@ -1,24 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import javax.annotation.Nullable;
-import javax.annotation.concurrent.ThreadSafe;
-
-@ThreadSafe
-@NotNullByDefault
-public class MailboxFileId extends MailboxId {
-	public MailboxFileId(byte[] id) {
-		super(id);
-	}
-
-	/**
-	 * Creates a {@link MailboxFileId} from the given string.
-	 *
-	 * @throws IllegalArgumentException if token is not valid.
-	 */
-	public static MailboxFileId fromString(@Nullable String token)
-			throws InvalidMailboxIdException {
-		return new MailboxFileId(bytesFromString(token));
-	}
-}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxFolderId.java

@@ -1,24 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import javax.annotation.Nullable;
-import javax.annotation.concurrent.ThreadSafe;
-
-@ThreadSafe
-@NotNullByDefault
-public class MailboxFolderId extends MailboxId {
-	public MailboxFolderId(byte[] id) {
-		super(id);
-	}
-
-	/**
-	 * Creates a {@link MailboxFolderId} from the given string.
-	 *
-	 * @throws IllegalArgumentException if token is not valid.
-	 */
-	public static MailboxFolderId fromString(@Nullable String token)
-			throws InvalidMailboxIdException {
-		return new MailboxFolderId(bytesFromString(token));
-	}
-}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxId.java

@@ -1,49 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-import com.fasterxml.jackson.annotation.JsonValue;
-
-import org.briarproject.bramble.api.UniqueId;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import java.util.Locale;
-
-import javax.annotation.Nullable;
-import javax.annotation.concurrent.ThreadSafe;
-
-import static org.briarproject.bramble.util.StringUtils.fromHexString;
-import static org.briarproject.bramble.util.StringUtils.toHexString;
-
-@ThreadSafe
-@NotNullByDefault
-public abstract class MailboxId extends UniqueId {
-	MailboxId(byte[] id) {
-		super(id);
-	}
-
-	/**
-	 * Returns valid {@link MailboxId} bytes from the given string.
-	 *
-	 * @throws InvalidMailboxIdException if token is not valid.
-	 */
-	static byte[] bytesFromString(@Nullable String token)
-			throws InvalidMailboxIdException {
-		if (token == null || token.length() != 64) {
-			throw new InvalidMailboxIdException();
-		}
-		try {
-			return fromHexString(token);
-		} catch (IllegalArgumentException e) {
-			throw new InvalidMailboxIdException();
-		}
-	}
-
-	/**
-	 * Returns the string representation expected by the mailbox API.
-	 * Also used for serialization.
-	 */
-	@Override
-	@JsonValue
-	public String toString() {
-		return toHexString(getBytes()).toLowerCase(Locale.US);
-	}
-}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxManager.java

@@ -1,44 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.bramble.api.db.Transaction;
-
-import javax.annotation.Nullable;
-
-public interface MailboxManager {
-
-	/**
-	 * @return true if a mailbox is already paired.
-	 */
-	boolean isPaired(Transaction txn) throws DbException;
-
-	/**
-	 * @return the current status of the mailbox.
-	 */
-	MailboxStatus getMailboxStatus(Transaction txn) throws DbException;
-
-	/**
-	 * Returns the currently running pairing task,
-	 * or null if no pairing task is running.
-	 */
-	@Nullable
-	MailboxPairingTask getCurrentPairingTask();
-
-	/**
-	 * Starts and returns a pairing task. If a pairing task is already running,
-	 * it will be returned and the argument will be ignored.
-	 *
-	 * @param qrCodePayload The ISO-8859-1 encoded bytes of the mailbox QR code.
-	 */
-	MailboxPairingTask startPairingTask(String qrCodePayload);
-
-	/**
-	 * Can be used by the UI to test the mailbox connection.
-	 *
-	 * @return true (success) or false (error).
-	 * A {@link OwnMailboxConnectionStatusEvent} might be broadcast with a new
-	 * {@link MailboxStatus}.
-	 */
-	boolean checkConnection();
-
-}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxPairingState.java

@@ -1,25 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-public abstract class MailboxPairingState {
-
-	public static class QrCodeReceived extends MailboxPairingState {
-	}
-
-	public static class Pairing extends MailboxPairingState {
-	}
-
-	public static class Paired extends MailboxPairingState {
-	}
-
-	public static class InvalidQrCode extends MailboxPairingState {
-	}
-
-	public static class MailboxAlreadyPaired extends MailboxPairingState {
-	}
-
-	public static class ConnectionError extends MailboxPairingState {
-	}
-
-	public static class UnexpectedError extends MailboxPairingState {
-	}
-}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxPairingTask.java

@@ -1,21 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-import org.briarproject.bramble.api.Consumer;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-@NotNullByDefault
-public interface MailboxPairingTask extends Runnable {
-
-	/**
-	 * Adds an observer to the task. The observer will be notified on the
-	 * event thread of the current state of the task and any subsequent state
-	 * changes.
-	 */
-	void addObserver(Consumer<MailboxPairingState> observer);
-
-	/**
-	 * Removes an observer from the task.
-	 */
-	void removeObserver(Consumer<MailboxPairingState> observer);
-
-}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxProperties.java

@@ -8,27 +8,21 @@ import javax.annotation.concurrent.Immutable;
 @NotNullByDefault
 public class MailboxProperties {
 
-	private final String baseUrl;
-	private final MailboxAuthToken authToken;
+	private final String onionAddress, authToken;
 	private final boolean owner;
 
-	public MailboxProperties(String baseUrl, MailboxAuthToken authToken,
+	public MailboxProperties(String onionAddress, String authToken,
 			boolean owner) {
-		this.baseUrl = baseUrl;
+		this.onionAddress = onionAddress;
 		this.authToken = authToken;
 		this.owner = owner;
 	}
 
-	public String getBaseUrl() {
-		return baseUrl;
+	public String getOnionAddress() {
+		return onionAddress;
 	}
 
-	public String getOnion() {
-		return baseUrl.replaceFirst("^http://", "")
-				.replaceFirst("\\.onion$", "");
-	}
-
-	public MailboxAuthToken getAuthToken() {
+	public String getAuthToken() {
 		return authToken;
 	}
 

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxPropertiesUpdate.java

@@ -1,41 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import javax.annotation.concurrent.Immutable;
-
-@Immutable
-@NotNullByDefault
-public class MailboxPropertiesUpdate {
-
-	private final String onion;
-	private final MailboxAuthToken authToken;
-	private final MailboxFolderId inboxId;
-	private final MailboxFolderId outboxId;
-
-	public MailboxPropertiesUpdate(String onion,
-			MailboxAuthToken authToken, MailboxFolderId inboxId,
-			MailboxFolderId outboxId) {
-		this.onion = onion;
-		this.authToken = authToken;
-		this.inboxId = inboxId;
-		this.outboxId = outboxId;
-	}
-
-	public String getOnion() {
-		return onion;
-	}
-
-	public MailboxAuthToken getAuthToken() {
-		return authToken;
-	}
-
-	public MailboxFolderId getInboxId() {
-		return inboxId;
-	}
-
-	public MailboxFolderId getOutboxId() {
-		return outboxId;
-	}
-
-}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxPropertyManager.java

@@ -1,67 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.bramble.api.db.Transaction;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.sync.ClientId;
-
-import javax.annotation.Nullable;
-
-@NotNullByDefault
-public interface MailboxPropertyManager {
-
-	/**
-	 * The unique ID of the mailbox property client.
-	 */
-	ClientId CLIENT_ID =
-			new ClientId("org.briarproject.bramble.mailbox.properties");
-
-	/**
-	 * The current major version of the mailbox property client.
-	 */
-	int MAJOR_VERSION = 0;
-
-	/**
-	 * The current minor version of the mailbox property client.
-	 */
-	int MINOR_VERSION = 0;
-
-	/**
-	 * The number of properties required for a (non-empty) update message.
-	 */
-	int PROP_COUNT = 4;
-
-	/**
-	 * The required properties of a non-empty update message.
-	 */
-	String PROP_KEY_ONION = "onion";
-	String PROP_KEY_AUTHTOKEN = "authToken";
-	String PROP_KEY_INBOXID = "inboxId";
-	String PROP_KEY_OUTBOXID = "outboxId";
-
-	/**
-	 * Length of the Onion property.
-	 */
-	int PROP_ONION_LENGTH = 56;
-
-	/**
-	 * Message metadata key for the version number of a local or remote update,
-	 * as a BDF long.
-	 */
-	String MSG_KEY_VERSION = "version";
-
-	/**
-	 * Message metadata key for whether an update is local or remote, as a BDF
-	 * boolean.
-	 */
-	String MSG_KEY_LOCAL = "local";
-
-	@Nullable
-	MailboxPropertiesUpdate getLocalProperties(Transaction txn, ContactId c)
-			throws DbException;
-
-	@Nullable
-	MailboxPropertiesUpdate getRemoteProperties(Transaction txn, ContactId c)
-			throws DbException;
-}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxSettingsManager.java

@@ -1,10 +1,7 @@
 package org.briarproject.bramble.api.mailbox;
 
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.Transaction;
-import org.briarproject.bramble.api.lifecycle.LifecycleManager;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 import javax.annotation.Nullable;
@@ -12,13 +9,6 @@ import javax.annotation.Nullable;
 @NotNullByDefault
 public interface MailboxSettingsManager {
 
-	/**
-	 * Registers a hook to be called when a mailbox has been paired or unpaired.
-	 * This method should be called before
-	 * {@link LifecycleManager#startServices(SecretKey)}.
-	 */
-	void registerMailboxHook(MailboxHook hook);
-
 	@Nullable
 	MailboxProperties getOwnMailboxProperties(Transaction txn)
 			throws DbException;
@@ -33,28 +23,4 @@ public interface MailboxSettingsManager {
 
 	void recordFailedConnectionAttempt(Transaction txn, long now)
 			throws DbException;
-
-	void setPendingUpload(Transaction txn, ContactId id,
-			@Nullable String filename) throws DbException;
-
-	@Nullable
-	String getPendingUpload(Transaction txn, ContactId id) throws DbException;
-
-	interface MailboxHook {
-		/**
-		 * Called when Briar is paired with a mailbox
-		 *
-		 * @param txn A read-write transaction
-		 * @param ownOnion Our new mailbox's onion (56 base32 chars)
-		 */
-		void mailboxPaired(Transaction txn, String ownOnion)
-				throws DbException;
-
-		/**
-		 * Called when the mailbox is unpaired
-		 *
-		 * @param txn A read-write transaction
-		 */
-		void mailboxUnpaired(Transaction txn) throws DbException;
-	}
 }

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/OwnMailboxConnectionStatusEvent.java

@@ -1,25 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-import org.briarproject.bramble.api.event.Event;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import javax.annotation.concurrent.Immutable;
-
-/**
- * An event that is broadcast by {@link MailboxSettingsManager} when
- * recording the connection status of own Mailbox.
- */
-@Immutable
-@NotNullByDefault
-public class OwnMailboxConnectionStatusEvent extends Event {
-
-	private final MailboxStatus status;
-
-	public OwnMailboxConnectionStatusEvent(MailboxStatus status) {
-		this.status = status;
-	}
-
-	public MailboxStatus getStatus() {
-		return status;
-	}
-}

bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/RemoteMailboxPropertiesUpdateEvent.java

@@ -1,36 +0,0 @@
-package org.briarproject.bramble.api.mailbox;
-
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.event.Event;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import javax.annotation.Nullable;
-import javax.annotation.concurrent.Immutable;
-
-/**
- * An event that is broadcast when {@link MailboxPropertiesUpdate} are received
- * from a contact.
- */
-@Immutable
-@NotNullByDefault
-public class RemoteMailboxPropertiesUpdateEvent extends Event {
-
-	private final ContactId contactId;
-	@Nullable
-	private final MailboxPropertiesUpdate mailboxPropertiesUpdate;
-
-	public RemoteMailboxPropertiesUpdateEvent(ContactId contactId,
-			@Nullable MailboxPropertiesUpdate mailboxPropertiesUpdate) {
-		this.contactId = contactId;
-		this.mailboxPropertiesUpdate = mailboxPropertiesUpdate;
-	}
-
-	public ContactId getContact() {
-		return contactId;
-	}
-
-	@Nullable
-	public MailboxPropertiesUpdate getMailboxPropertiesUpdate() {
-		return mailboxPropertiesUpdate;
-	}
-}

bramble-api/src/main/java/org/briarproject/bramble/api/reporting/DevConfig.java

@@ -8,11 +8,24 @@ import java.io.File;
 @NotNullByDefault
 public interface DevConfig {
 
+	/**
+	 * Returns the public key for encrypting feedback and crash reports.
+	 */
 	PublicKey getDevPublicKey();
 
+	/**
+	 * Returns the onion address for submitting feedback and crash reports.
+	 */
 	String getDevOnionAddress();
 
+	/**
+	 * Returns the directory for storing unsent feedback and crash reports.
+	 */
 	File getReportDir();
 
-	File getLogcatFile();
+	/**
+	 * Returns the temporary file for passing the encrypted app log from the
+	 * main process to the crash reporter process.
+	 */
+	File getTemporaryLogFile();
 }

bramble-api/src/main/java/org/briarproject/bramble/api/sync/GroupId.java

@@ -20,4 +20,9 @@ public class GroupId extends UniqueId {
 	public GroupId(byte[] id) {
 		super(id);
 	}
+
+	@Override
+	public boolean equals(Object o) {
+		return o instanceof GroupId && super.equals(o);
+	}
 }

bramble-api/src/main/java/org/briarproject/bramble/api/sync/MessageId.java

@@ -27,4 +27,9 @@ public class MessageId extends UniqueId {
 	public MessageId(byte[] id) {
 		super(id);
 	}
+
+	@Override
+	public boolean equals(Object o) {
+		return o instanceof MessageId && super.equals(o);
+	}
 }

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

@@ -113,25 +113,9 @@ public interface KeyManager {
 	/**
 	 * Looks up the given tag and returns a {@link StreamContext} for reading
 	 * from the corresponding stream, or null if an error occurs or the tag was
-	 * unexpected. Marks the tag as recognised and updates the reordering
-	 * window.
+	 * unexpected.
 	 */
 	@Nullable
 	StreamContext getStreamContext(TransportId t, byte[] tag)
 			throws DbException;
-
-	/**
-	 * Looks up the given tag and returns a {@link StreamContext} for reading
-	 * from the corresponding stream, or null if an error occurs or the tag was
-	 * unexpected. Only returns the StreamContext; does not mark the tag as
-	 * recognised.
-	 */
-	@Nullable
-	StreamContext getStreamContextOnly(TransportId t, byte[] tag)
-			throws DbException;
-
-	/**
-	 * Marks the tag as recognised and updates the reordering window.
-	 */
-	void markTagAsRecognised(TransportId t, byte[] tag) throws DbException;
 }

bramble-api/src/main/java/org/briarproject/bramble/util/LogUtils.java

@@ -1,7 +1,10 @@
 package org.briarproject.bramble.util;
 
 import java.io.File;
+import java.util.Collection;
+import java.util.logging.Formatter;
 import java.util.logging.Level;
+import java.util.logging.LogRecord;
 import java.util.logging.Logger;
 
 import static java.util.logging.Level.FINE;
@@ -57,4 +60,13 @@ public class LogUtils {
 			String type) {
 		logger.log(level, type + " " + f.getAbsolutePath() + " " + f.length());
 	}
+
+	public static String formatLog(Formatter formatter,
+			Collection<LogRecord> logRecords) {
+		StringBuilder sb = new StringBuilder();
+		for (LogRecord record : logRecords) {
+			sb.append(formatter.format(record)).append('\n');
+		}
+		return sb.toString();
+	}
 }

bramble-api/src/main/java/org/briarproject/bramble/util/NetworkUtils.java

@@ -26,7 +26,7 @@ public class NetworkUtils {
 			// Despite what the docs say, the return value can be null
 			//noinspection ConstantConditions
 			return ifaces == null ? emptyList() : list(ifaces);
-		} catch (SocketException | NullPointerException e) {
+		} catch (SocketException e) {
 			logException(LOG, WARNING, e);
 			return emptyList();
 		}

bramble-api/src/test/java/org/briarproject/bramble/test/BrambleTestCase.java

@@ -1,46 +1,17 @@
 package org.briarproject.bramble.test;
 
-import org.junit.After;
-import org.junit.Before;
-
 import java.lang.Thread.UncaughtExceptionHandler;
-import java.util.logging.Logger;
 
-import javax.annotation.Nullable;
-
-import static java.util.logging.Level.WARNING;
-import static java.util.logging.Logger.getLogger;
+import static org.junit.Assert.fail;
 
 public abstract class BrambleTestCase {
 
-	private static final Logger LOG =
-			getLogger(BrambleTestCase.class.getName());
-
-	@Nullable
-	protected volatile Throwable exceptionInBackgroundThread = null;
-
 	public BrambleTestCase() {
 		// Ensure exceptions thrown on worker threads cause tests to fail
 		UncaughtExceptionHandler fail = (thread, throwable) -> {
-			LOG.log(WARNING, "Caught unhandled exception", throwable);
-			exceptionInBackgroundThread = throwable;
+			throwable.printStackTrace();
+			fail();
 		};
 		Thread.setDefaultUncaughtExceptionHandler(fail);
 	}
-
-	@Before
-	public void beforeBrambleTestCase() {
-		exceptionInBackgroundThread = null;
-	}
-
-	@After
-	public void afterBrambleTestCase() {
-		Throwable thrown = exceptionInBackgroundThread;
-		if (thrown != null) {
-			LOG.log(WARNING,
-					"Background thread has thrown an exception unexpectedly",
-					thrown);
-			throw new AssertionError(thrown);
-		}
-	}
 }

bramble-api/src/test/java/org/briarproject/bramble/test/TestUtils.java

@@ -12,15 +12,10 @@ import org.briarproject.bramble.api.crypto.PublicKey;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.crypto.SignaturePrivateKey;
 import org.briarproject.bramble.api.crypto.SignaturePublicKey;
-import org.briarproject.bramble.api.db.CommitAction;
-import org.briarproject.bramble.api.db.EventAction;
-import org.briarproject.bramble.api.db.Transaction;
-import org.briarproject.bramble.api.event.Event;
 import org.briarproject.bramble.api.identity.Author;
 import org.briarproject.bramble.api.identity.AuthorId;
 import org.briarproject.bramble.api.identity.Identity;
 import org.briarproject.bramble.api.identity.LocalAuthor;
-import org.briarproject.bramble.api.mailbox.MailboxPropertiesUpdate;
 import org.briarproject.bramble.api.plugin.TransportId;
 import org.briarproject.bramble.api.properties.TransportProperties;
 import org.briarproject.bramble.api.sync.ClientId;
@@ -30,11 +25,7 @@ import org.briarproject.bramble.api.sync.Message;
 import org.briarproject.bramble.api.sync.MessageId;
 import org.briarproject.bramble.util.IoUtils;
 
-import java.io.ByteArrayOutputStream;
 import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
@@ -44,8 +35,6 @@ import java.util.Map;
 import java.util.Random;
 import java.util.concurrent.atomic.AtomicInteger;
 
-import javax.annotation.Nullable;
-
 import static java.util.Arrays.asList;
 import static org.briarproject.bramble.api.crypto.CryptoConstants.MAX_AGREEMENT_PUBLIC_KEY_BYTES;
 import static org.briarproject.bramble.api.crypto.CryptoConstants.MAX_SIGNATURE_PUBLIC_KEY_BYTES;
@@ -56,7 +45,6 @@ import static org.briarproject.bramble.api.properties.TransportPropertyConstants
 import static org.briarproject.bramble.api.sync.ClientId.MAX_CLIENT_ID_LENGTH;
 import static org.briarproject.bramble.api.sync.SyncConstants.MAX_GROUP_DESCRIPTOR_LENGTH;
 import static org.briarproject.bramble.api.sync.SyncConstants.MAX_MESSAGE_BODY_LENGTH;
-import static org.briarproject.bramble.util.IoUtils.copyAndClose;
 import static org.briarproject.bramble.util.StringUtils.getRandomString;
 
 public class TestUtils {
@@ -221,24 +209,6 @@ public class TestUtils {
 				getAgreementPublicKey(), verified);
 	}
 
-	public static void writeBytes(File file, byte[] bytes)
-			throws IOException {
-		FileOutputStream outputStream = new FileOutputStream(file);
-		//noinspection TryFinallyCanBeTryWithResources
-		try {
-			outputStream.write(bytes);
-		} finally {
-			outputStream.close();
-		}
-	}
-
-	public static byte[] readBytes(File file) throws IOException {
-		ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-		FileInputStream inputStream = new FileInputStream(file);
-		copyAndClose(inputStream, outputStream);
-		return outputStream.toByteArray();
-	}
-
 	public static double getMedian(Collection<? extends Number> samples) {
 		int size = samples.size();
 		if (size == 0) throw new IllegalArgumentException();
@@ -278,27 +248,4 @@ public class TestUtils {
 		return optionalTests != null &&
 				asList(optionalTests.split(",")).contains(testClass.getName());
 	}
-
-	public static boolean mailboxPropertiesUpdateEqual(
-			@Nullable MailboxPropertiesUpdate a,
-			@Nullable MailboxPropertiesUpdate b) {
-		if (a == null || b == null) {
-			return a == b;
-		}
-		return a.getOnion().equals(b.getOnion()) &&
-				a.getAuthToken().equals(b.getAuthToken()) &&
-				a.getInboxId().equals(b.getInboxId()) &&
-				a.getOutboxId().equals(b.getOutboxId());
-	}
-
-	public static boolean hasEvent(Transaction txn,
-			Class<? extends Event> eventClass) {
-		for (CommitAction action : txn.getActions()) {
-			if (action instanceof EventAction) {
-				Event event = ((EventAction) action).getEvent();
-				if (eventClass.isInstance(event)) return true;
-			}
-		}
-		return false;
-	}
 }

bramble-api/src/test/java/org/briarproject/bramble/test/ThreadExceptionTest.java

@@ -1,36 +0,0 @@
-package org.briarproject.bramble.test;
-
-import org.junit.Test;
-
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.fail;
-
-public class ThreadExceptionTest extends BrambleTestCase {
-
-	@Test(expected = AssertionError.class)
-	public void testAssertionErrorMakesTestCaseFail() {
-		// This is what BrambleTestCase does, too:
-		fail();
-	}
-
-	@Test
-	public void testExceptionInThreadMakesTestCaseFail() {
-		Thread t = new Thread(() -> {
-			System.out.println("thread before exception");
-			throw new RuntimeException("boom");
-		});
-
-		t.start();
-		try {
-			t.join();
-			System.out.println("joined thread");
-		} catch (InterruptedException e) {
-			System.out.println("interrupted while joining thread");
-			fail();
-		}
-
-		assertNotNull(exceptionInBackgroundThread);
-		exceptionInBackgroundThread = null;
-	}
-
-}

bramble-api/witness.gradle

@@ -1,7 +1,6 @@
 dependencyVerification {
     verify = [
         'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
-        'com.fasterxml.jackson.core:jackson-annotations:2.13.0:jackson-annotations-2.13.0.jar:81f9724d8843e8b08f8f6c0609e7a2b030d00c34861c4ac7e2099a7235047d6f',
         'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
         'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
         'com.google.dagger:dagger:2.33:dagger-2.33.jar:d8798c5b8cf6b125234e33af5c6293bb9f2208ce29b57924c35b8c0be7b6bdcb',

bramble-core/build.gradle

@@ -10,18 +10,13 @@ apply from: '../dagger.gradle'
 
 dependencies {
 	implementation project(path: ':bramble-api', configuration: 'default')
-	implementation 'org.bouncycastle:bcprov-jdk15to18:1.70'
-	//noinspection GradleDependency
+	implementation 'org.bouncycastle:bcprov-jdk15on:1.69'
 	implementation 'com.h2database:h2:1.4.192' // The last version that supports Java 1.6
 	implementation 'org.bitlet:weupnp:0.1.4'
 	implementation 'net.i2p.crypto:eddsa:0.2.0'
 	implementation 'org.whispersystems:curve25519-java:0.5.0'
 	implementation 'org.briarproject:jtorctl:0.3'
 
-	//noinspection GradleDependency
-	implementation "com.squareup.okhttp3:okhttp:$okhttp_version"
-	implementation "com.fasterxml.jackson.core:jackson-databind:$jackson_version"
-
 	annotationProcessor "com.google.dagger:dagger-compiler:$dagger_version"
 
 	testImplementation project(path: ':bramble-api', configuration: 'testOutput')
@@ -30,8 +25,7 @@ dependencies {
 	testImplementation "junit:junit:$junit_version"
 	testImplementation "org.jmock:jmock:$jmock_version"
 	testImplementation "org.jmock:jmock-junit4:$jmock_version"
-	testImplementation "org.jmock:jmock-imposters:$jmock_version"
-	testImplementation "com.squareup.okhttp3:mockwebserver:4.9.3"
+	testImplementation "org.jmock:jmock-legacy:$jmock_version"
 
 	testAnnotationProcessor "com.google.dagger:dagger-compiler:$dagger_version"
 

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

@@ -6,7 +6,6 @@ import org.briarproject.bramble.crypto.CryptoExecutorModule;
 import org.briarproject.bramble.db.DatabaseExecutorModule;
 import org.briarproject.bramble.identity.IdentityModule;
 import org.briarproject.bramble.lifecycle.LifecycleModule;
-import org.briarproject.bramble.mailbox.MailboxModule;
 import org.briarproject.bramble.plugin.PluginModule;
 import org.briarproject.bramble.properties.PropertiesModule;
 import org.briarproject.bramble.rendezvous.RendezvousModule;
@@ -29,8 +28,6 @@ public interface BrambleCoreEagerSingletons {
 
 	void inject(LifecycleModule.EagerSingletons init);
 
-	void inject(MailboxModule.EagerSingletons init);
-
 	void inject(PluginModule.EagerSingletons init);
 
 	void inject(PropertiesModule.EagerSingletons init);
@@ -54,7 +51,6 @@ public interface BrambleCoreEagerSingletons {
 			c.inject(new DatabaseExecutorModule.EagerSingletons());
 			c.inject(new IdentityModule.EagerSingletons());
 			c.inject(new LifecycleModule.EagerSingletons());
-			c.inject(new MailboxModule.EagerSingletons());
 			c.inject(new RendezvousModule.EagerSingletons());
 			c.inject(new PluginModule.EagerSingletons());
 			c.inject(new PropertiesModule.EagerSingletons());

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

@@ -14,6 +14,7 @@ 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.mailbox.MailboxModule;
 import org.briarproject.bramble.plugin.PluginModule;
 import org.briarproject.bramble.properties.PropertiesModule;
@@ -44,6 +45,7 @@ import dagger.Module;
 		IoModule.class,
 		KeyAgreementModule.class,
 		LifecycleModule.class,
+		LoggingModule.class,
 		MailboxModule.class,
 		PluginModule.class,
 		PropertiesModule.class,

bramble-core/src/main/java/org/briarproject/bramble/client/ClientHelperImpl.java

@@ -1,7 +1,6 @@
 package org.briarproject.bramble.client;
 
 import org.briarproject.bramble.api.FormatException;
-import org.briarproject.bramble.api.UniqueId;
 import org.briarproject.bramble.api.client.ClientHelper;
 import org.briarproject.bramble.api.contact.ContactId;
 import org.briarproject.bramble.api.crypto.CryptoComponent;
@@ -23,9 +22,6 @@ import org.briarproject.bramble.api.db.Metadata;
 import org.briarproject.bramble.api.db.Transaction;
 import org.briarproject.bramble.api.identity.Author;
 import org.briarproject.bramble.api.identity.AuthorFactory;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
-import org.briarproject.bramble.api.mailbox.MailboxFolderId;
-import org.briarproject.bramble.api.mailbox.MailboxPropertiesUpdate;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.plugin.TransportId;
 import org.briarproject.bramble.api.properties.TransportProperties;
@@ -33,7 +29,6 @@ import org.briarproject.bramble.api.sync.GroupId;
 import org.briarproject.bramble.api.sync.Message;
 import org.briarproject.bramble.api.sync.MessageFactory;
 import org.briarproject.bramble.api.sync.MessageId;
-import org.briarproject.bramble.util.Base32;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
@@ -44,7 +39,6 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Map.Entry;
 
-import javax.annotation.Nullable;
 import javax.annotation.concurrent.Immutable;
 import javax.inject.Inject;
 
@@ -52,12 +46,6 @@ import static org.briarproject.bramble.api.client.ContactGroupConstants.GROUP_KE
 import static org.briarproject.bramble.api.identity.Author.FORMAT_VERSION;
 import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_AUTHOR_NAME_LENGTH;
 import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_PUBLIC_KEY_LENGTH;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_COUNT;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_AUTHTOKEN;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_INBOXID;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_ONION;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_OUTBOXID;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_ONION_LENGTH;
 import static org.briarproject.bramble.api.properties.TransportPropertyConstants.MAX_PROPERTIES_PER_TRANSPORT;
 import static org.briarproject.bramble.api.properties.TransportPropertyConstants.MAX_PROPERTY_LENGTH;
 import static org.briarproject.bramble.util.ValidationUtils.checkLength;
@@ -411,35 +399,6 @@ class ClientHelperImpl implements ClientHelper {
 		return tpMap;
 	}
 
-	@Override
-	@Nullable
-	public MailboxPropertiesUpdate parseAndValidateMailboxPropertiesUpdate(
-			BdfDictionary properties) throws FormatException {
-		if (properties.isEmpty()) {
-			return null;
-		}
-		// Accepting more props than we need, for forward compatibility
-		if (properties.size() < PROP_COUNT) {
-			throw new FormatException();
-		}
-		String onion = properties.getString(PROP_KEY_ONION);
-		checkLength(onion, PROP_ONION_LENGTH);
-		try {
-			Base32.decode(onion, true);
-		} catch (IllegalArgumentException e) {
-			throw new FormatException();
-		}
-		byte[] authToken = properties.getRaw(PROP_KEY_AUTHTOKEN);
-		checkLength(authToken, UniqueId.LENGTH);
-		byte[] inboxId = properties.getRaw(PROP_KEY_INBOXID);
-		checkLength(inboxId, UniqueId.LENGTH);
-		byte[] outboxId = properties.getRaw(PROP_KEY_OUTBOXID);
-		checkLength(outboxId, UniqueId.LENGTH);
-		return new MailboxPropertiesUpdate(onion,
-				new MailboxAuthToken(authToken), new MailboxFolderId(inboxId),
-				new MailboxFolderId(outboxId));
-	}
-
 	@Override
 	public ContactId getContactId(Transaction txn, GroupId contactGroupId)
 			throws DbException {

bramble-core/src/main/java/org/briarproject/bramble/contact/ContactManagerImpl.java

@@ -121,40 +121,28 @@ class ContactManagerImpl implements ContactManager, EventListener {
 
 	@Override
 	public String getHandshakeLink() throws DbException {
-		return db.transactionWithResult(true, this::getHandshakeLink);
-	}
-
-	@Override
-	public String getHandshakeLink(Transaction txn) throws DbException {
-		KeyPair keyPair = identityManager.getHandshakeKeys(txn);
+		KeyPair keyPair = db.transactionWithResult(true,
+				identityManager::getHandshakeKeys);
 		return pendingContactFactory.createHandshakeLink(keyPair.getPublic());
 	}
 
-	@Override
-	public PendingContact addPendingContact(Transaction txn, String link,
-			String alias)
-			throws DbException, FormatException, GeneralSecurityException {
-		PendingContact p =
-				pendingContactFactory.createPendingContact(link, alias);
-		AuthorId local = identityManager.getLocalAuthor(txn).getId();
-		db.addPendingContact(txn, p, local);
-		KeyPair ourKeyPair = identityManager.getHandshakeKeys(txn);
-		keyManager.addPendingContact(txn, p.getId(), p.getPublicKey(),
-				ourKeyPair);
-		return p;
-	}
-
 	@Override
 	public PendingContact addPendingContact(String link, String alias)
 			throws DbException, FormatException, GeneralSecurityException {
+		PendingContact p =
+				pendingContactFactory.createPendingContact(link, alias);
 		Transaction txn = db.startTransaction(false);
 		try {
-			PendingContact p = addPendingContact(txn, link, alias);
+			AuthorId local = identityManager.getLocalAuthor(txn).getId();
+			db.addPendingContact(txn, p, local);
+			KeyPair ourKeyPair = identityManager.getHandshakeKeys(txn);
+			keyManager.addPendingContact(txn, p.getId(), p.getPublicKey(),
+					ourKeyPair);
 			db.commitTransaction(txn);
-			return p;
 		} finally {
 			db.endTransaction(txn);
 		}
+		return p;
 	}
 
 	@Override
@@ -166,14 +154,8 @@ class ContactManagerImpl implements ContactManager, EventListener {
 	@Override
 	public Collection<Pair<PendingContact, PendingContactState>> getPendingContacts()
 			throws DbException {
-		return db.transactionWithResult(true, this::getPendingContacts);
-	}
-
-	@Override
-	public Collection<Pair<PendingContact, PendingContactState>> getPendingContacts(
-			Transaction txn)
-			throws DbException {
-		Collection<PendingContact> pendingContacts = db.getPendingContacts(txn);
+		Collection<PendingContact> pendingContacts =
+				db.transactionWithResult(true, db::getPendingContacts);
 		List<Pair<PendingContact, PendingContactState>> pairs =
 				new ArrayList<>(pendingContacts.size());
 		for (PendingContact p : pendingContacts) {
@@ -186,13 +168,7 @@ class ContactManagerImpl implements ContactManager, EventListener {
 
 	@Override
 	public void removePendingContact(PendingContactId p) throws DbException {
-		db.transaction(false, txn -> removePendingContact(txn, p));
-	}
-
-	@Override
-	public void removePendingContact(Transaction txn, PendingContactId p)
-			throws DbException {
-		db.removePendingContact(txn, p);
+		db.transaction(false, txn -> db.removePendingContact(txn, p));
 		states.remove(p);
 	}
 

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

@@ -8,7 +8,6 @@ import org.bouncycastle.crypto.CryptoException;
 import org.bouncycastle.crypto.Digest;
 import org.bouncycastle.crypto.digests.Blake2bDigest;
 import org.bouncycastle.crypto.digests.SHA3Digest;
-import org.briarproject.bramble.api.UniqueId;
 import org.briarproject.bramble.api.crypto.AgreementPrivateKey;
 import org.briarproject.bramble.api.crypto.AgreementPublicKey;
 import org.briarproject.bramble.api.crypto.CryptoComponent;
@@ -42,7 +41,6 @@ import javax.inject.Inject;
 
 import static java.lang.System.arraycopy;
 import static java.util.logging.Level.INFO;
-import static java.util.logging.Logger.getLogger;
 import static org.briarproject.bramble.api.crypto.CryptoConstants.KEY_TYPE_AGREEMENT;
 import static org.briarproject.bramble.api.crypto.CryptoConstants.KEY_TYPE_SIGNATURE;
 import static org.briarproject.bramble.api.crypto.DecryptionResult.INVALID_CIPHERTEXT;
@@ -56,7 +54,7 @@ import static org.briarproject.bramble.util.LogUtils.now;
 class CryptoComponentImpl implements CryptoComponent {
 
 	private static final Logger LOG =
-			getLogger(CryptoComponentImpl.class.getName());
+			Logger.getLogger(CryptoComponentImpl.class.getName());
 
 	private static final int SIGNATURE_KEY_PAIR_BITS = 256;
 	private static final int STORAGE_IV_BYTES = 24; // 196 bits
@@ -130,13 +128,6 @@ class CryptoComponentImpl implements CryptoComponent {
 		}
 	}
 
-	@Override
-	public UniqueId generateUniqueId() {
-		byte[] b = new byte[UniqueId.LENGTH];
-		secureRandom.nextBytes(b);
-		return new UniqueId(b);
-	}
-
 	@Override
 	public SecretKey generateSecretKey() {
 		byte[] b = new byte[SecretKey.LENGTH];
@@ -458,7 +449,7 @@ class CryptoComponentImpl implements CryptoComponent {
 	}
 
 	@Override
-	public String encodeOnion(byte[] publicKey) {
+	public String encodeOnionAddress(byte[] publicKey) {
 		Digest digest = new SHA3Digest(256);
 		byte[] label = ".onion checksum".getBytes(Charset.forName("US-ASCII"));
 		digest.update(label, 0, label.length);

bramble-core/src/main/java/org/briarproject/bramble/db/Database.java

@@ -757,14 +757,6 @@ interface Database<T> {
 	 */
 	void resetExpiryTime(T txn, ContactId c, MessageId m) throws DbException;
 
-	/**
-	 * Resets the transmission count, expiry time and max latency of all
-	 * messages that are eligible to be sent to the given contact. This includes
-	 * messages that have already been sent and are not yet due for
-	 * retransmission.
-	 */
-	void resetUnackedMessagesToSend(T txn, ContactId c) throws DbException;
-
 	/**
 	 * Sets the cleanup timer duration for the given message. This does not
 	 * start the message's cleanup timer.
@@ -849,14 +841,12 @@ interface Database<T> {
 	void stopCleanupTimer(T txn, MessageId m) throws DbException;
 
 	/**
-	 * Updates the transmission count, expiry time and max latency of the given
-	 * message with respect to the given contact.
-	 *
-	 * @param maxLatency latency of the transport over which the message was
-	 * sent.
+	 * Updates the transmission count, expiry time and estimated time of arrival
+	 * of the given message with respect to the given contact, using the latency
+	 * of the transport over which it was sent.
 	 */
-	void updateRetransmissionData(T txn, ContactId c, MessageId m,
-			long maxLatency) throws DbException;
+	void updateExpiryTimeAndEta(T txn, ContactId c, MessageId m, long maxLatency)
+			throws DbException;
 
 	/**
 	 * Stores the given transport keys, deleting any keys they have replaced.

bramble-core/src/main/java/org/briarproject/bramble/db/DatabaseComponentImpl.java

@@ -437,7 +437,7 @@ class DatabaseComponentImpl<T> implements DatabaseComponent {
 			Message message = db.getMessage(txn, m);
 			totalLength += message.getRawLength();
 			messages.add(message);
-			db.updateRetransmissionData(txn, c, m, maxLatency);
+			db.updateExpiryTimeAndEta(txn, c, m, maxLatency);
 		}
 		if (ids.isEmpty()) return null;
 		db.lowerRequestedFlag(txn, c, ids);
@@ -462,7 +462,7 @@ class DatabaseComponentImpl<T> implements DatabaseComponent {
 				totalLength += message.getRawLength();
 				messages.add(message);
 				sentIds.add(m);
-				db.updateRetransmissionData(txn, c, m, maxLatency);
+				db.updateExpiryTimeAndEta(txn, c, m, maxLatency);
 			}
 		}
 		if (messages.isEmpty()) return messages;
@@ -483,7 +483,7 @@ class DatabaseComponentImpl<T> implements DatabaseComponent {
 				db.getMessagesToOffer(txn, c, maxMessages, maxLatency);
 		if (ids.isEmpty()) return null;
 		for (MessageId m : ids)
-			db.updateRetransmissionData(txn, c, m, maxLatency);
+			db.updateExpiryTimeAndEta(txn, c, m, maxLatency);
 		return new Offer(ids);
 	}
 
@@ -518,7 +518,7 @@ class DatabaseComponentImpl<T> implements DatabaseComponent {
 			Message message = db.getMessage(txn, m);
 			totalLength += message.getRawLength();
 			messages.add(message);
-			db.updateRetransmissionData(txn, c, m, maxLatency);
+			db.updateExpiryTimeAndEta(txn, c, m, maxLatency);
 		}
 		if (ids.isEmpty()) return null;
 		db.lowerRequestedFlag(txn, c, ids);
@@ -750,15 +750,6 @@ class DatabaseComponentImpl<T> implements DatabaseComponent {
 		return db.getUnackedMessagesToSend(txn, c);
 	}
 
-	@Override
-	public void resetUnackedMessagesToSend(Transaction transaction, ContactId c)
-			throws DbException {
-		T txn = unbox(transaction);
-		if (!db.containsContact(txn, c))
-			throw new NoSuchContactException();
-		db.resetUnackedMessagesToSend(txn, c);
-	}
-
 	@Override
 	public long getUnackedMessageBytesToSend(Transaction transaction,
 			ContactId c) throws DbException {

bramble-core/src/main/java/org/briarproject/bramble/db/DatabaseConstants.java

@@ -2,6 +2,8 @@ package org.briarproject.bramble.db;
 
 import org.briarproject.bramble.api.settings.Settings;
 
+import static java.util.concurrent.TimeUnit.DAYS;
+
 interface DatabaseConstants {
 
 	/**
@@ -23,6 +25,19 @@ interface DatabaseConstants {
 	 */
 	String SCHEMA_VERSION_KEY = "schemaVersion";
 
+	/**
+	 * The {@link Settings} key under which the time of the last database
+	 * compaction is stored.
+	 */
+	String LAST_COMPACTED_KEY = "lastCompacted";
+
+	/**
+	 * The maximum time between database compactions in milliseconds. When the
+	 * database is opened it will be compacted if more than this amount of time
+	 * has passed since the last compaction.
+	 */
+	long MAX_COMPACTION_INTERVAL_MS = DAYS.toMillis(30);
+
 	/**
 	 * The {@link Settings} key under which the flag is stored indicating
 	 * whether the database is marked as dirty.

bramble-core/src/main/java/org/briarproject/bramble/db/H2Database.java

@@ -85,17 +85,12 @@ class H2Database extends JdbcDatabase {
 	public void close() throws DbException {
 		// H2 will close the database when the last connection closes
 		Connection c = null;
-		Statement s = null;
 		try {
 			c = createConnection();
-			closeAllConnections();
+			super.closeAllConnections();
 			setDirty(c, false);
-			s = c.createStatement();
-			s.execute("SHUTDOWN COMPACT");
-			s.close();
 			c.close();
 		} catch (SQLException e) {
-			tryToClose(s, LOG, WARNING);
 			tryToClose(c, LOG, WARNING);
 			throw new DbException(e);
 		}

bramble-core/src/main/java/org/briarproject/bramble/db/HyperSqlDatabase.java

@@ -79,11 +79,11 @@ class HyperSqlDatabase extends JdbcDatabase {
 		Connection c = null;
 		Statement s = null;
 		try {
-			closeAllConnections();
+			super.closeAllConnections();
 			c = createConnection();
 			setDirty(c, false);
 			s = c.createStatement();
-			s.executeQuery("SHUTDOWN COMPACT");
+			s.executeQuery("SHUTDOWN");
 			s.close();
 			c.close();
 		} catch (SQLException e) {
@@ -106,7 +106,7 @@ class HyperSqlDatabase extends JdbcDatabase {
 		Connection c = null;
 		Statement s = null;
 		try {
-			closeAllConnections();
+			super.closeAllConnections();
 			c = createConnection();
 			s = c.createStatement();
 			s.executeQuery("SHUTDOWN COMPACT");

bramble-core/src/main/java/org/briarproject/bramble/db/JdbcDatabase.java

@@ -1,32 +1,5 @@
 package org.briarproject.bramble.db;
 
-import static org.briarproject.bramble.api.db.DatabaseComponent.NO_CLEANUP_DEADLINE;
-import static org.briarproject.bramble.api.db.DatabaseComponent.TIMER_NOT_STARTED;
-import static org.briarproject.bramble.api.db.Metadata.REMOVE;
-import static org.briarproject.bramble.api.sync.Group.Visibility.INVISIBLE;
-import static org.briarproject.bramble.api.sync.Group.Visibility.SHARED;
-import static org.briarproject.bramble.api.sync.Group.Visibility.VISIBLE;
-import static org.briarproject.bramble.api.sync.SyncConstants.MESSAGE_HEADER_LENGTH;
-import static org.briarproject.bramble.api.sync.validation.MessageState.DELIVERED;
-import static org.briarproject.bramble.api.sync.validation.MessageState.PENDING;
-import static org.briarproject.bramble.api.sync.validation.MessageState.UNKNOWN;
-import static org.briarproject.bramble.db.DatabaseConstants.DB_SETTINGS_NAMESPACE;
-import static org.briarproject.bramble.db.DatabaseConstants.DIRTY_KEY;
-import static org.briarproject.bramble.db.DatabaseConstants.SCHEMA_VERSION_KEY;
-import static org.briarproject.bramble.db.ExponentialBackoff.calculateExpiry;
-import static org.briarproject.bramble.db.JdbcUtils.tryToClose;
-import static org.briarproject.bramble.util.LogUtils.logDuration;
-import static org.briarproject.bramble.util.LogUtils.logException;
-import static org.briarproject.bramble.util.LogUtils.now;
-import static java.sql.Types.BINARY;
-import static java.sql.Types.BOOLEAN;
-import static java.sql.Types.INTEGER;
-import static java.sql.Types.VARCHAR;
-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 org.briarproject.bramble.api.contact.Contact;
 import org.briarproject.bramble.api.contact.ContactId;
 import org.briarproject.bramble.api.contact.PendingContact;
@@ -92,6 +65,35 @@ import java.util.logging.Logger;
 import javax.annotation.Nullable;
 import javax.annotation.concurrent.GuardedBy;
 
+import static java.sql.Types.BINARY;
+import static java.sql.Types.BOOLEAN;
+import static java.sql.Types.INTEGER;
+import static java.sql.Types.VARCHAR;
+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.api.db.DatabaseComponent.NO_CLEANUP_DEADLINE;
+import static org.briarproject.bramble.api.db.DatabaseComponent.TIMER_NOT_STARTED;
+import static org.briarproject.bramble.api.db.Metadata.REMOVE;
+import static org.briarproject.bramble.api.sync.Group.Visibility.INVISIBLE;
+import static org.briarproject.bramble.api.sync.Group.Visibility.SHARED;
+import static org.briarproject.bramble.api.sync.Group.Visibility.VISIBLE;
+import static org.briarproject.bramble.api.sync.SyncConstants.MESSAGE_HEADER_LENGTH;
+import static org.briarproject.bramble.api.sync.validation.MessageState.DELIVERED;
+import static org.briarproject.bramble.api.sync.validation.MessageState.PENDING;
+import static org.briarproject.bramble.api.sync.validation.MessageState.UNKNOWN;
+import static org.briarproject.bramble.db.DatabaseConstants.DB_SETTINGS_NAMESPACE;
+import static org.briarproject.bramble.db.DatabaseConstants.DIRTY_KEY;
+import static org.briarproject.bramble.db.DatabaseConstants.LAST_COMPACTED_KEY;
+import static org.briarproject.bramble.db.DatabaseConstants.MAX_COMPACTION_INTERVAL_MS;
+import static org.briarproject.bramble.db.DatabaseConstants.SCHEMA_VERSION_KEY;
+import static org.briarproject.bramble.db.ExponentialBackoff.calculateExpiry;
+import static org.briarproject.bramble.db.JdbcUtils.tryToClose;
+import static org.briarproject.bramble.util.LogUtils.logDuration;
+import static org.briarproject.bramble.util.LogUtils.logException;
+import static org.briarproject.bramble.util.LogUtils.now;
+
 /**
  * A generic database implementation that can be used with any JDBC-compatible
  * database library.
@@ -100,7 +102,7 @@ import javax.annotation.concurrent.GuardedBy;
 abstract class JdbcDatabase implements Database<Connection> {
 
 	// Package access for testing
-	static final int CODE_SCHEMA_VERSION = 50;
+	static final int CODE_SCHEMA_VERSION = 49;
 
 	// Time period offsets for incoming transport keys
 	private static final int OFFSET_PREV = -1;
@@ -250,7 +252,7 @@ abstract class JdbcDatabase implements Database<Connection> {
 					+ " requested BOOLEAN NOT NULL,"
 					+ " expiry BIGINT NOT NULL,"
 					+ " txCount INT NOT NULL,"
-					+ " maxLatency BIGINT," // Null if latency was reset
+					+ " eta BIGINT NOT NULL,"
 					+ " PRIMARY KEY (messageId, contactId),"
 					+ " FOREIGN KEY (messageId)"
 					+ " REFERENCES messages (messageId)"
@@ -376,7 +378,8 @@ abstract class JdbcDatabase implements Database<Connection> {
 			throws DbException, SQLException;
 
 	// Used exclusively during open to compact the database after schema
-	// migrations or if the database was not shut down cleanly
+	// migrations or after DatabaseConstants#MAX_COMPACTION_INTERVAL_MS has
+	// elapsed
 	protected abstract void compactAndClose() throws DbException;
 
 	JdbcDatabase(DatabaseTypes databaseTypes, MessageFactory messageFactory,
@@ -402,8 +405,7 @@ abstract class JdbcDatabase implements Database<Connection> {
 			if (reopen) {
 				Settings s = getSettings(txn, DB_SETTINGS_NAMESPACE);
 				wasDirtyOnInitialisation = isDirty(s);
-				boolean migrated = migrateSchema(txn, s, listener);
-				compact = wasDirtyOnInitialisation || migrated;
+				compact = migrateSchema(txn, s, listener) || isCompactionDue(s);
 			} else {
 				wasDirtyOnInitialisation = false;
 				createTables(txn);
@@ -415,7 +417,6 @@ abstract class JdbcDatabase implements Database<Connection> {
 			}
 			createIndexes(txn);
 			setDirty(txn, true);
-			if (LOG.isLoggable(INFO)) countAndLogRows(txn);
 			commitTransaction(txn);
 		} catch (DbException e) {
 			abortTransaction(txn);
@@ -428,11 +429,16 @@ abstract class JdbcDatabase implements Database<Connection> {
 			compactAndClose();
 			logDuration(LOG, "Compacting database", start);
 			// Allow the next transaction to reopen the DB
-			connectionsLock.lock();
-			try {
+			synchronized (connectionsLock) {
 				closed = false;
-			} finally {
-				connectionsLock.unlock();
+			}
+			txn = startTransaction();
+			try {
+				storeLastCompacted(txn);
+				commitTransaction(txn);
+			} catch (DbException e) {
+				abortTransaction(txn);
+				throw e;
 			}
 		}
 	}
@@ -493,11 +499,18 @@ abstract class JdbcDatabase implements Database<Connection> {
 				new Migration45_46(),
 				new Migration46_47(dbTypes),
 				new Migration47_48(),
-				new Migration48_49(),
-				new Migration49_50()
+				new Migration48_49()
 		);
 	}
 
+	private boolean isCompactionDue(Settings s) {
+		long lastCompacted = s.getLong(LAST_COMPACTED_KEY, 0);
+		long elapsed = clock.currentTimeMillis() - lastCompacted;
+		if (LOG.isLoggable(INFO))
+			LOG.info(elapsed + " ms since last compaction");
+		return elapsed > MAX_COMPACTION_INTERVAL_MS;
+	}
+
 	private void storeSchemaVersion(Connection txn, int version)
 			throws DbException {
 		Settings s = new Settings();
@@ -505,6 +518,12 @@ abstract class JdbcDatabase implements Database<Connection> {
 		mergeSettings(txn, s, DB_SETTINGS_NAMESPACE);
 	}
 
+	private void storeLastCompacted(Connection txn) throws DbException {
+		Settings s = new Settings();
+		s.putLong(LAST_COMPACTED_KEY, clock.currentTimeMillis());
+		mergeSettings(txn, s, DB_SETTINGS_NAMESPACE);
+	}
+
 	private boolean isDirty(Settings s) {
 		return s.getBoolean(DIRTY_KEY, false);
 	}
@@ -518,6 +537,7 @@ abstract class JdbcDatabase implements Database<Connection> {
 	private void initialiseSettings(Connection txn) throws DbException {
 		Settings s = new Settings();
 		s.putInt(SCHEMA_VERSION_KEY, CODE_SCHEMA_VERSION);
+		s.putLong(LAST_COMPACTED_KEY, clock.currentTimeMillis());
 		mergeSettings(txn, s, DB_SETTINGS_NAMESPACE);
 	}
 
@@ -566,40 +586,6 @@ abstract class JdbcDatabase implements Database<Connection> {
 		}
 	}
 
-	private void countAndLogRows(Connection txn) throws DbException {
-		Statement s = null;
-		try {
-			s = txn.createStatement();
-			countAndLogRows(s, "settings");
-			countAndLogRows(s, "localAuthors");
-			countAndLogRows(s, "contacts");
-			countAndLogRows(s, "groups");
-			countAndLogRows(s, "groupMetadata");
-			countAndLogRows(s, "groupVisibilities");
-			countAndLogRows(s, "messages");
-			countAndLogRows(s, "messageMetadata");
-			countAndLogRows(s, "messageDependencies");
-			countAndLogRows(s, "offers");
-			countAndLogRows(s, "statuses");
-			countAndLogRows(s, "transports");
-			countAndLogRows(s, "incomingKeys");
-			countAndLogRows(s, "outgoingKeys");
-			s.close();
-		} catch (SQLException e) {
-			tryToClose(s, LOG, WARNING);
-			throw new DbException(e);
-		}
-	}
-
-	private void countAndLogRows(Statement s, String tableName)
-			throws SQLException {
-		ResultSet rs = s.executeQuery("SELECT COUNT (*) FROM " + tableName);
-		if (rs.next())
-			LOG.info("Table " + tableName + ": " + rs.getInt(1) + " rows");
-		else LOG.warning("Table " + tableName + " could not be counted");
-		rs.close();
-	}
-
 	@Override
 	public Connection startTransaction() throws DbException {
 		Connection txn;
@@ -931,10 +917,9 @@ abstract class JdbcDatabase implements Database<Connection> {
 		try {
 			String sql = "INSERT INTO statuses (messageId, contactId, groupId,"
 					+ " timestamp, length, state, groupShared, messageShared,"
-					+ " deleted, ack, seen, requested, expiry, txCount,"
-					+ " maxLatency)"
+					+ " deleted, ack, seen, requested, expiry, txCount, eta)"
 					+ " VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, FALSE, 0, 0,"
-					+ " NULL)";
+					+ " 0)";
 			ps = txn.prepareStatement(sql);
 			ps.setBytes(1, m.getBytes());
 			ps.setInt(2, c.getInt());
@@ -1168,17 +1153,17 @@ abstract class JdbcDatabase implements Database<Connection> {
 				ps.setInt(2, DELIVERED.getValue());
 			} else {
 				long now = clock.currentTimeMillis();
+				long eta = now + maxLatency;
 				sql = "SELECT NULL FROM statuses"
 						+ " WHERE contactId = ? AND state = ?"
 						+ " AND groupShared = TRUE AND messageShared = TRUE"
 						+ " AND deleted = FALSE AND seen = FALSE"
-						+ " AND (expiry <= ? OR maxLatency IS NULL"
-						+ " OR ? < maxLatency)";
+						+ " AND (expiry <= ? OR eta > ?)";
 				ps = txn.prepareStatement(sql);
 				ps.setInt(1, c.getInt());
 				ps.setInt(2, DELIVERED.getValue());
 				ps.setLong(3, now);
-				ps.setLong(4, maxLatency);
+				ps.setLong(4, eta);
 			}
 			rs = ps.executeQuery();
 			boolean messagesToSend = rs.next();
@@ -2206,6 +2191,7 @@ abstract class JdbcDatabase implements Database<Connection> {
 	public Collection<MessageId> getMessagesToOffer(Connection txn,
 			ContactId c, int maxMessages, long maxLatency) throws DbException {
 		long now = clock.currentTimeMillis();
+		long eta = now + maxLatency;
 		PreparedStatement ps = null;
 		ResultSet rs = null;
 		try {
@@ -2214,14 +2200,13 @@ abstract class JdbcDatabase implements Database<Connection> {
 					+ " AND groupShared = TRUE AND messageShared = TRUE"
 					+ " AND deleted = FALSE"
 					+ " AND seen = FALSE AND requested = FALSE"
-					+ " AND (expiry <= ? OR maxLatency IS NULL"
-					+ " OR ? < maxLatency)"
+					+ " AND (expiry <= ? OR eta > ?)"
 					+ " ORDER BY timestamp LIMIT ?";
 			ps = txn.prepareStatement(sql);
 			ps.setInt(1, c.getInt());
 			ps.setInt(2, DELIVERED.getValue());
 			ps.setLong(3, now);
-			ps.setLong(4, maxLatency);
+			ps.setLong(4, eta);
 			ps.setInt(5, maxMessages);
 			rs = ps.executeQuery();
 			List<MessageId> ids = new ArrayList<>();
@@ -2265,6 +2250,7 @@ abstract class JdbcDatabase implements Database<Connection> {
 	public Collection<MessageId> getMessagesToSend(Connection txn, ContactId c,
 			int maxLength, long maxLatency) throws DbException {
 		long now = clock.currentTimeMillis();
+		long eta = now + maxLatency;
 		PreparedStatement ps = null;
 		ResultSet rs = null;
 		try {
@@ -2273,14 +2259,13 @@ abstract class JdbcDatabase implements Database<Connection> {
 					+ " AND groupShared = TRUE AND messageShared = TRUE"
 					+ " AND deleted = FALSE"
 					+ " AND seen = FALSE"
-					+ " AND (expiry <= ? OR maxLatency IS NULL"
-					+ " OR ? < maxLatency)"
+					+ " AND (expiry <= ? OR eta > ?)"
 					+ " ORDER BY timestamp";
 			ps = txn.prepareStatement(sql);
 			ps.setInt(1, c.getInt());
 			ps.setInt(2, DELIVERED.getValue());
 			ps.setLong(3, now);
-			ps.setLong(4, maxLatency);
+			ps.setLong(4, eta);
 			rs = ps.executeQuery();
 			List<MessageId> ids = new ArrayList<>();
 			int total = 0;
@@ -2564,6 +2549,7 @@ abstract class JdbcDatabase implements Database<Connection> {
 	public Collection<MessageId> getRequestedMessagesToSend(Connection txn,
 			ContactId c, int maxLength, long maxLatency) throws DbException {
 		long now = clock.currentTimeMillis();
+		long eta = now + maxLatency;
 		PreparedStatement ps = null;
 		ResultSet rs = null;
 		try {
@@ -2572,14 +2558,13 @@ abstract class JdbcDatabase implements Database<Connection> {
 					+ " AND groupShared = TRUE AND messageShared = TRUE"
 					+ " AND deleted = FALSE"
 					+ " AND seen = FALSE AND requested = TRUE"
-					+ " AND (expiry <= ? OR maxLatency IS NULL"
-					+ " OR ? < maxLatency)"
+					+ " AND (expiry <= ? OR eta > ?)"
 					+ " ORDER BY timestamp";
 			ps = txn.prepareStatement(sql);
 			ps.setInt(1, c.getInt());
 			ps.setInt(2, DELIVERED.getValue());
 			ps.setLong(3, now);
-			ps.setLong(4, maxLatency);
+			ps.setLong(4, eta);
 			rs = ps.executeQuery();
 			List<MessageId> ids = new ArrayList<>();
 			int total = 0;
@@ -3305,30 +3290,6 @@ abstract class JdbcDatabase implements Database<Connection> {
 		}
 	}
 
-	@Override
-	public void resetUnackedMessagesToSend(Connection txn, ContactId c)
-			throws DbException {
-		PreparedStatement ps = null;
-		try {
-			String sql = "UPDATE statuses SET expiry = 0, txCount = 0,"
-					+ " maxLatency = NULL"
-					+ " WHERE contactId = ? AND state = ?"
-					+ " AND groupShared = TRUE AND messageShared = TRUE"
-					+ " AND deleted = FALSE AND seen = FALSE";
-			ps = txn.prepareStatement(sql);
-			ps.setInt(1, c.getInt());
-			ps.setInt(2, DELIVERED.getValue());
-			int affected = ps.executeUpdate();
-			if (affected < 0) {
-				throw new DbStateException();
-			}
-			ps.close();
-		} catch (SQLException e) {
-			tryToClose(ps, LOG, WARNING);
-			throw new DbException(e);
-		}
-	}
-
 	@Override
 	public void setCleanupTimerDuration(Connection txn, MessageId m,
 			long duration) throws DbException {
@@ -3656,8 +3617,8 @@ abstract class JdbcDatabase implements Database<Connection> {
 	}
 
 	@Override
-	public void updateRetransmissionData(Connection txn, ContactId c,
-			MessageId m, long maxLatency) throws DbException {
+	public void updateExpiryTimeAndEta(Connection txn, ContactId c, MessageId m,
+			long maxLatency) throws DbException {
 		PreparedStatement ps = null;
 		ResultSet rs = null;
 		try {
@@ -3673,12 +3634,13 @@ abstract class JdbcDatabase implements Database<Connection> {
 			rs.close();
 			ps.close();
 			sql = "UPDATE statuses"
-					+ " SET expiry = ?, txCount = txCount + 1, maxLatency = ?"
+					+ " SET expiry = ?, txCount = txCount + 1, eta = ?"
 					+ " WHERE messageId = ? AND contactId = ?";
 			ps = txn.prepareStatement(sql);
 			long now = clock.currentTimeMillis();
+			long eta = now + maxLatency;
 			ps.setLong(1, calculateExpiry(now, maxLatency, txCount));
-			ps.setLong(2, maxLatency);
+			ps.setLong(2, eta);
 			ps.setBytes(3, m.getBytes());
 			ps.setInt(4, c.getInt());
 			int affected = ps.executeUpdate();

bramble-core/src/main/java/org/briarproject/bramble/db/Migration49_50.java

@@ -1,45 +0,0 @@
-package org.briarproject.bramble.db;
-
-import org.briarproject.bramble.api.db.DbException;
-
-import java.sql.Connection;
-import java.sql.SQLException;
-import java.sql.Statement;
-import java.util.logging.Logger;
-
-import static java.util.logging.Level.WARNING;
-import static java.util.logging.Logger.getLogger;
-import static org.briarproject.bramble.db.JdbcUtils.tryToClose;
-
-class Migration49_50 implements Migration<Connection> {
-
-	private static final Logger LOG = getLogger(Migration49_50.class.getName());
-
-	@Override
-	public int getStartVersion() {
-		return 49;
-	}
-
-	@Override
-	public int getEndVersion() {
-		return 50;
-	}
-
-	@Override
-	public void migrate(Connection txn) throws DbException {
-		Statement s = null;
-		try {
-			s = txn.createStatement();
-			s.execute("ALTER TABLE statuses"
-					+ " ALTER COLUMN eta"
-					+ " RENAME TO maxLatency");
-			s.execute("ALTER TABLE statuses"
-					+ " ALTER COLUMN maxLatency"
-					+ " SET NULL");
-			s.execute("UPDATE statuses SET maxLatency = NULL");
-		} catch (SQLException e) {
-			tryToClose(s, LOG, WARNING);
-			throw new DbException(e);
-		}
-	}
-}

bramble-core/src/main/java/org/briarproject/bramble/io/IoModule.java

@@ -1,49 +1,18 @@
 package org.briarproject.bramble.io;
 
-import org.briarproject.bramble.api.WeakSingletonProvider;
 import org.briarproject.bramble.api.io.TimeoutMonitor;
 
-import javax.annotation.Nonnull;
 import javax.inject.Singleton;
-import javax.net.SocketFactory;
 
 import dagger.Module;
 import dagger.Provides;
-import okhttp3.Dns;
-import okhttp3.OkHttpClient;
-
-import static java.util.concurrent.TimeUnit.MILLISECONDS;
 
 @Module
 public class IoModule {
 
-	private static final int CONNECT_TIMEOUT = 60_000; // Milliseconds
-
 	@Provides
 	@Singleton
 	TimeoutMonitor provideTimeoutMonitor(TimeoutMonitorImpl timeoutMonitor) {
 		return timeoutMonitor;
 	}
-
-	// Share an HTTP client instance between requests where possible, while
-	// allowing the client to be garbage-collected between requests. The
-	// provider keeps a weak reference to the last client instance and reuses
-	// the instance until it gets garbage-collected. See
-	// https://medium.com/@leandromazzuquini/if-you-are-using-okhttp-you-should-know-this-61d68e065a2b
-	@Provides
-	@Singleton
-	WeakSingletonProvider<OkHttpClient> provideOkHttpClientProvider(
-			SocketFactory torSocketFactory, Dns noDnsLookups) {
-		return new WeakSingletonProvider<OkHttpClient>() {
-			@Override
-			@Nonnull
-			public OkHttpClient createInstance() {
-				return new OkHttpClient.Builder()
-						.socketFactory(torSocketFactory)
-						.dns(noDnsLookups) // Don't make local DNS lookups
-						.connectTimeout(CONNECT_TIMEOUT, MILLISECONDS)
-						.build();
-			}
-		};
-	}
 }

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

@@ -1,10 +1,9 @@
-package org.briarproject.briar.android.logging;
+package org.briarproject.bramble.logging;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
-import java.util.Collection;
 import java.util.Date;
 import java.util.TimeZone;
 import java.util.logging.Formatter;
@@ -18,16 +17,6 @@ import static java.util.Locale.US;
 @NotNullByDefault
 public class BriefLogFormatter extends Formatter {
 
-	public static String formatLog(Formatter formatter,
-			Collection<LogRecord> logRecords) {
-		StringBuilder sb = new StringBuilder();
-		for (LogRecord record : logRecords) {
-			String formatted = formatter.format(record);
-			sb.append(formatted).append('\n');
-		}
-		return sb.toString();
-	}
-
 	private final Object lock = new Object();
 	private final DateFormat dateFormat; // Locking: lock
 	private final Date date; // Locking: lock

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

@@ -0,0 +1,44 @@
+package org.briarproject.bramble.logging;
+
+import org.briarproject.bramble.api.lifecycle.IoExecutor;
+import org.briarproject.bramble.api.system.TaskScheduler;
+
+import java.io.OutputStream;
+import java.util.concurrent.Executor;
+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 TaskScheduler scheduler;
+	private final Executor ioExecutor;
+	private final AtomicBoolean flushScheduled = new AtomicBoolean(false);
+
+	FlushingStreamHandler(TaskScheduler 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, ioExecutor,
+					FLUSH_DELAY_MS, MILLISECONDS);
+		}
+	}
+
+	@IoExecutor
+	private void scheduledFlush() {
+		flushScheduled.set(false);
+		flush();
+	}
+}

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

@@ -0,0 +1,29 @@
+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

@@ -0,0 +1,176 @@
+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.TaskScheduler;
+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.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 TaskScheduler 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(
+			TaskScheduler 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 getPersistentLog(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 getPersistentLog(new File(dir, OLD_LOG_FILE), oldLogKey);
+		} else {
+			return getPersistentLog(new File(dir, LOG_FILE), logKey);
+		}
+	}
+
+	private Scanner getPersistentLog(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/mailbox/MailboxApi.java

@@ -1,177 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import com.fasterxml.jackson.databind.annotation.JsonSerialize;
-
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
-import org.briarproject.bramble.api.mailbox.MailboxFileId;
-import org.briarproject.bramble.api.mailbox.MailboxFolderId;
-import org.briarproject.bramble.api.mailbox.MailboxProperties;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.Collection;
-import java.util.List;
-
-import javax.annotation.Nonnull;
-import javax.annotation.concurrent.Immutable;
-
-interface MailboxApi {
-
-	/**
-	 * Sets up the mailbox with the setup token.
-	 *
-	 * @param properties MailboxProperties with the setup token
-	 * @return the owner token
-	 * @throws ApiException for 401 response.
-	 */
-	MailboxAuthToken setup(MailboxProperties properties)
-			throws IOException, ApiException;
-
-	/**
-	 * Checks the status of the mailbox.
-	 *
-	 * @return true if the status is OK, false otherwise.
-	 * @throws ApiException for 401 response.
-	 */
-	boolean checkStatus(MailboxProperties properties)
-			throws IOException, ApiException;
-
-	/**
-	 * Unpairs Briar and the mailbox (owner only).
-	 * Resets mailbox state to that after first install
-	 * (e.g. removes all stored files as well).
-	 */
-	void wipeMailbox(MailboxProperties properties)
-			throws IOException, ApiException;
-
-	/**
-	 * Adds a new contact to the mailbox.
-	 *
-	 * @throws TolerableFailureException if response code is 409
-	 * (contact was already added).
-	 */
-	void addContact(MailboxProperties properties, MailboxContact contact)
-			throws IOException, ApiException, TolerableFailureException;
-
-	/**
-	 * Deletes a contact from the mailbox.
-	 * This should get called after a contact was removed from Briar.
-	 *
-	 * @throws TolerableFailureException if response code is 404
-	 * (contact probably was already deleted).
-	 */
-	void deleteContact(MailboxProperties properties, ContactId contactId)
-			throws IOException, ApiException, TolerableFailureException;
-
-	/**
-	 * Gets a list of {@link ContactId}s from the mailbox.
-	 * These are the contacts that the mailbox already knows about.
-	 */
-	Collection<ContactId> getContacts(MailboxProperties properties)
-			throws IOException, ApiException;
-
-	/**
-	 * Used by contacts to send files to the owner
-	 * and by the owner to send files to contacts.
-	 * <p>
-	 * The owner can add files to the contacts' inboxes
-	 * and the contacts can add files to their own outbox.
-	 */
-	void addFile(MailboxProperties properties, MailboxFolderId folderId,
-			File file) throws IOException, ApiException;
-
-	/**
-	 * Used by owner and contacts to list their files to retrieve.
-	 * <p>
-	 * Returns 200 OK with the list of files in JSON.
-	 */
-	List<MailboxFile> getFiles(MailboxProperties properties,
-			MailboxFolderId folderId) throws IOException, ApiException;
-
-	/**
-	 * Used by owner and contacts to retrieve a file.
-	 * <p>
-	 * Returns 200 OK if successful with the files' raw bytes
-	 * in the response body.
-	 *
-	 * @param file the empty file the response bytes will be written into.
-	 */
-	void getFile(MailboxProperties properties, MailboxFolderId folderId,
-			MailboxFileId fileId, File file) throws IOException, ApiException;
-
-	/**
-	 * Used by owner and contacts to delete files.
-	 * <p>
-	 * Returns 200 OK (no exception) if deletion was successful.
-	 *
-	 * @throws TolerableFailureException on 404 response,
-	 * because file was most likely deleted already.
-	 */
-	void deleteFile(MailboxProperties properties, MailboxFolderId folderId,
-			MailboxFileId fileId)
-			throws IOException, ApiException, TolerableFailureException;
-
-	/**
-	 * Lists all contact outboxes that have files available
-	 * for the owner to download.
-	 *
-	 * @return a list of folder names
-	 * to be used with {@link #getFiles(MailboxProperties, MailboxFolderId)}.
-	 * @throws IllegalArgumentException if used by non-owner.
-	 */
-	List<MailboxFolderId> getFolders(MailboxProperties properties)
-			throws IOException, ApiException;
-
-	@Immutable
-	@JsonSerialize
-	class MailboxContact {
-		public final int contactId;
-		public final MailboxAuthToken token;
-		public final MailboxFolderId inboxId, outboxId;
-
-		MailboxContact(ContactId contactId,
-				MailboxAuthToken token,
-				MailboxFolderId inboxId,
-				MailboxFolderId outboxId) {
-			this.contactId = contactId.getInt();
-			this.token = token;
-			this.inboxId = inboxId;
-			this.outboxId = outboxId;
-		}
-	}
-
-	@JsonSerialize
-	class MailboxFile implements Comparable<MailboxFile> {
-		public final MailboxFileId name;
-		public final long time;
-
-		public MailboxFile(MailboxFileId name, long time) {
-			this.name = name;
-			this.time = time;
-		}
-
-		@Override
-		public int compareTo(@Nonnull MailboxApi.MailboxFile mailboxFile) {
-			//noinspection UseCompareMethod
-			return time < mailboxFile.time ? -1 :
-					(time == mailboxFile.time ? 0 : 1);
-		}
-	}
-
-	@Immutable
-	class ApiException extends Exception {
-	}
-
-	@Immutable
-	class MailboxAlreadyPairedException extends ApiException {
-	}
-
-	/**
-	 * A failure that does not need to be retried,
-	 * e.g. when adding a contact that already exists.
-	 */
-	@Immutable
-	class TolerableFailureException extends Exception {
-	}
-}

bramble-core/src/main/java/org/briarproject/bramble/mailbox/MailboxApiImpl.java

@@ -1,301 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import com.fasterxml.jackson.core.JacksonException;
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.json.JsonMapper;
-import com.fasterxml.jackson.databind.node.ArrayNode;
-import com.fasterxml.jackson.databind.node.ObjectNode;
-
-import org.briarproject.bramble.api.WeakSingletonProvider;
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.mailbox.InvalidMailboxIdException;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
-import org.briarproject.bramble.api.mailbox.MailboxFileId;
-import org.briarproject.bramble.api.mailbox.MailboxFolderId;
-import org.briarproject.bramble.api.mailbox.MailboxId;
-import org.briarproject.bramble.api.mailbox.MailboxProperties;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
-
-import javax.inject.Inject;
-
-import okhttp3.MediaType;
-import okhttp3.OkHttpClient;
-import okhttp3.Request;
-import okhttp3.RequestBody;
-import okhttp3.Response;
-import okhttp3.ResponseBody;
-
-import static com.fasterxml.jackson.databind.MapperFeature.BLOCK_UNSAFE_POLYMORPHIC_BASE_TYPES;
-import static java.util.Objects.requireNonNull;
-import static okhttp3.internal.Util.EMPTY_REQUEST;
-import static org.briarproject.bramble.util.IoUtils.copyAndClose;
-
-@NotNullByDefault
-class MailboxApiImpl implements MailboxApi {
-
-	private final WeakSingletonProvider<OkHttpClient> httpClientProvider;
-	private final JsonMapper mapper = JsonMapper.builder()
-			.enable(BLOCK_UNSAFE_POLYMORPHIC_BASE_TYPES)
-			.build();
-	private static final MediaType JSON =
-			requireNonNull(MediaType.parse("application/json; charset=utf-8"));
-	private static final MediaType FILE =
-			requireNonNull(MediaType.parse("application/octet-stream"));
-
-	@Inject
-	MailboxApiImpl(WeakSingletonProvider<OkHttpClient> httpClientProvider) {
-		this.httpClientProvider = httpClientProvider;
-	}
-
-	@Override
-	public MailboxAuthToken setup(MailboxProperties properties)
-			throws IOException, ApiException {
-		if (!properties.isOwner()) throw new IllegalArgumentException();
-		Request request = getRequestBuilder(properties.getAuthToken())
-				.url(properties.getBaseUrl() + "/setup")
-				.put(EMPTY_REQUEST)
-				.build();
-		OkHttpClient client = httpClientProvider.get();
-		Response response = client.newCall(request).execute();
-		if (response.code() == 401) throw new MailboxAlreadyPairedException();
-		if (!response.isSuccessful()) throw new ApiException();
-		ResponseBody body = response.body();
-		if (body == null) throw new ApiException();
-		try {
-			JsonNode node = mapper.readTree(body.string());
-			JsonNode tokenNode = node.get("token");
-			if (tokenNode == null) {
-				throw new ApiException();
-			}
-			String ownerToken = tokenNode.textValue();
-			return MailboxAuthToken.fromString(ownerToken);
-		} catch (JacksonException | InvalidMailboxIdException e) {
-			throw new ApiException();
-		}
-	}
-
-	@Override
-	public boolean checkStatus(MailboxProperties properties)
-			throws IOException, ApiException {
-		if (!properties.isOwner()) throw new IllegalArgumentException();
-		Response response = sendGetRequest(properties, "/status");
-		if (response.code() == 401) throw new ApiException();
-		return response.isSuccessful();
-	}
-
-	@Override
-	public void wipeMailbox(MailboxProperties properties)
-			throws IOException, ApiException {
-		if (!properties.isOwner()) throw new IllegalArgumentException();
-		Request request = getRequestBuilder(properties.getAuthToken())
-				.url(properties.getBaseUrl() + "/")
-				.delete()
-				.build();
-		OkHttpClient client = httpClientProvider.get();
-		Response response = client.newCall(request).execute();
-		if (response.code() != 204) throw new ApiException();
-	}
-
-	/* Contact Management API (owner only) */
-
-	@Override
-	public void addContact(MailboxProperties properties, MailboxContact contact)
-			throws IOException, ApiException, TolerableFailureException {
-		if (!properties.isOwner()) throw new IllegalArgumentException();
-		byte[] bodyBytes = mapper.writeValueAsBytes(contact);
-		RequestBody body = RequestBody.create(JSON, bodyBytes);
-		Response response = sendPostRequest(properties, "/contacts", body);
-		if (response.code() == 409) throw new TolerableFailureException();
-		if (!response.isSuccessful()) throw new ApiException();
-	}
-
-	@Override
-	public void deleteContact(MailboxProperties properties, ContactId contactId)
-			throws IOException, ApiException, TolerableFailureException {
-		if (!properties.isOwner()) throw new IllegalArgumentException();
-		String url = properties.getBaseUrl() + "/contacts/" +
-				contactId.getInt();
-		Request request = getRequestBuilder(properties.getAuthToken())
-				.delete()
-				.url(url)
-				.build();
-		OkHttpClient client = httpClientProvider.get();
-		Response response = client.newCall(request).execute();
-		if (response.code() == 404) throw new TolerableFailureException();
-		if (response.code() != 200) throw new ApiException();
-	}
-
-	@Override
-	public Collection<ContactId> getContacts(MailboxProperties properties)
-			throws IOException, ApiException {
-		if (!properties.isOwner()) throw new IllegalArgumentException();
-		Response response = sendGetRequest(properties, "/contacts");
-		if (response.code() != 200) throw new ApiException();
-
-		ResponseBody body = response.body();
-		if (body == null) throw new ApiException();
-		try {
-			JsonNode node = mapper.readTree(body.string());
-			ArrayNode contactsNode = getArray(node, "contacts");
-			List<ContactId> list = new ArrayList<>();
-			for (JsonNode contactNode : contactsNode) {
-				if (!contactNode.isNumber()) throw new ApiException();
-				int id = contactNode.intValue();
-				if (id < 1) throw new ApiException();
-				list.add(new ContactId(id));
-			}
-			return list;
-		} catch (JacksonException e) {
-			throw new ApiException();
-		}
-	}
-
-	/* File Management (owner and contacts) */
-
-	@Override
-	public void addFile(MailboxProperties properties, MailboxFolderId folderId,
-			File file) throws IOException, ApiException {
-		String path = "/files/" + folderId;
-		RequestBody body = RequestBody.create(FILE, file);
-		Response response = sendPostRequest(properties, path, body);
-		if (response.code() != 200) throw new ApiException();
-	}
-
-	@Override
-	public List<MailboxFile> getFiles(MailboxProperties properties,
-			MailboxFolderId folderId) throws IOException, ApiException {
-		String path = "/files/" + folderId;
-		Response response = sendGetRequest(properties, path);
-		if (response.code() != 200) throw new ApiException();
-
-		ResponseBody body = response.body();
-		if (body == null) throw new ApiException();
-		try {
-			JsonNode node = mapper.readTree(body.string());
-			ArrayNode filesNode = getArray(node, "files");
-			List<MailboxFile> list = new ArrayList<>();
-			for (JsonNode fileNode : filesNode) {
-				if (!fileNode.isObject()) throw new ApiException();
-				ObjectNode objectNode = (ObjectNode) fileNode;
-				JsonNode nameNode = objectNode.get("name");
-				JsonNode timeNode = objectNode.get("time");
-				if (nameNode == null || !nameNode.isTextual()) {
-					throw new ApiException();
-				}
-				if (timeNode == null || !timeNode.isNumber()) {
-					throw new ApiException();
-				}
-				String name = nameNode.asText();
-				long time = timeNode.asLong();
-				if (time < 1) throw new ApiException();
-				list.add(new MailboxFile(MailboxFileId.fromString(name), time));
-			}
-			Collections.sort(list);
-			return list;
-		} catch (JacksonException | InvalidMailboxIdException e) {
-			throw new ApiException();
-		}
-	}
-
-	@Override
-	public void getFile(MailboxProperties properties, MailboxFolderId folderId,
-			MailboxFileId fileId, File file) throws IOException, ApiException {
-		String path = "/files/" + folderId + "/" + fileId;
-		Response response = sendGetRequest(properties, path);
-		if (response.code() != 200) throw new ApiException();
-
-		ResponseBody body = response.body();
-		if (body == null) throw new ApiException();
-		FileOutputStream outputStream = new FileOutputStream(file);
-		copyAndClose(body.byteStream(), outputStream);
-	}
-
-	@Override
-	public void deleteFile(MailboxProperties properties,
-			MailboxFolderId folderId, MailboxFileId fileId)
-			throws IOException, ApiException, TolerableFailureException {
-		String path = "/files/" + folderId + "/" + fileId;
-		Request request = getRequestBuilder(properties.getAuthToken())
-				.delete()
-				.url(properties.getBaseUrl() + path)
-				.build();
-		OkHttpClient client = httpClientProvider.get();
-		Response response = client.newCall(request).execute();
-		if (response.code() == 404) throw new TolerableFailureException();
-		if (response.code() != 200) throw new ApiException();
-	}
-
-	@Override
-	public List<MailboxFolderId> getFolders(MailboxProperties properties)
-			throws IOException, ApiException {
-		if (!properties.isOwner()) throw new IllegalArgumentException();
-		Response response = sendGetRequest(properties, "/folders");
-		if (response.code() != 200) throw new ApiException();
-
-		ResponseBody body = response.body();
-		if (body == null) throw new ApiException();
-		try {
-			JsonNode node = mapper.readTree(body.string());
-			ArrayNode filesNode = getArray(node, "folders");
-			List<MailboxFolderId> list = new ArrayList<>();
-			for (JsonNode fileNode : filesNode) {
-				if (!fileNode.isObject()) throw new ApiException();
-				ObjectNode objectNode = (ObjectNode) fileNode;
-				JsonNode idNode = objectNode.get("id");
-				if (idNode == null || !idNode.isTextual()) {
-					throw new ApiException();
-				}
-				String id = idNode.asText();
-				list.add(MailboxFolderId.fromString(id));
-			}
-			return list;
-		} catch (JacksonException | InvalidMailboxIdException e) {
-			throw new ApiException();
-		}
-	}
-
-	/* Helper Functions */
-
-	private Response sendGetRequest(MailboxProperties properties, String path)
-			throws IOException {
-		Request request = getRequestBuilder(properties.getAuthToken())
-				.url(properties.getBaseUrl() + path)
-				.build();
-		OkHttpClient client = httpClientProvider.get();
-		return client.newCall(request).execute();
-	}
-
-	private Response sendPostRequest(MailboxProperties properties, String path,
-			RequestBody body) throws IOException {
-		Request request = getRequestBuilder(properties.getAuthToken())
-				.url(properties.getBaseUrl() + path)
-				.post(body)
-				.build();
-		OkHttpClient client = httpClientProvider.get();
-		return client.newCall(request).execute();
-	}
-
-	private Request.Builder getRequestBuilder(MailboxId token) {
-		return new Request.Builder()
-				.addHeader("Authorization", "Bearer " + token);
-	}
-
-	/* JSON helpers */
-
-	private ArrayNode getArray(JsonNode node, String name) throws ApiException {
-		JsonNode arrayNode = node.get(name);
-		if (arrayNode == null || !arrayNode.isArray()) {
-			throw new ApiException();
-		}
-		return (ArrayNode) arrayNode;
-	}
-
-}

bramble-core/src/main/java/org/briarproject/bramble/mailbox/MailboxManagerImpl.java

@@ -1,124 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.bramble.api.db.Transaction;
-import org.briarproject.bramble.api.db.TransactionManager;
-import org.briarproject.bramble.api.lifecycle.IoExecutor;
-import org.briarproject.bramble.api.mailbox.MailboxManager;
-import org.briarproject.bramble.api.mailbox.MailboxPairingTask;
-import org.briarproject.bramble.api.mailbox.MailboxProperties;
-import org.briarproject.bramble.api.mailbox.MailboxSettingsManager;
-import org.briarproject.bramble.api.mailbox.MailboxStatus;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.system.Clock;
-
-import java.io.IOException;
-import java.util.concurrent.Executor;
-import java.util.logging.Logger;
-
-import javax.annotation.Nullable;
-import javax.annotation.concurrent.GuardedBy;
-import javax.annotation.concurrent.Immutable;
-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;
-
-@Immutable
-@NotNullByDefault
-class MailboxManagerImpl implements MailboxManager {
-
-	private static final String TAG = MailboxManagerImpl.class.getName();
-	private final static Logger LOG = getLogger(TAG);
-
-	private final Executor ioExecutor;
-	private final MailboxApi api;
-	private final TransactionManager db;
-	private final MailboxSettingsManager mailboxSettingsManager;
-	private final MailboxPairingTaskFactory pairingTaskFactory;
-	private final Clock clock;
-	private final Object lock = new Object();
-
-	@Nullable
-	@GuardedBy("lock")
-	private MailboxPairingTask pairingTask = null;
-
-	@Inject
-	MailboxManagerImpl(
-			@IoExecutor Executor ioExecutor,
-			MailboxApi api,
-			TransactionManager db,
-			MailboxSettingsManager mailboxSettingsManager,
-			MailboxPairingTaskFactory pairingTaskFactory,
-			Clock clock) {
-		this.ioExecutor = ioExecutor;
-		this.api = api;
-		this.db = db;
-		this.mailboxSettingsManager = mailboxSettingsManager;
-		this.pairingTaskFactory = pairingTaskFactory;
-		this.clock = clock;
-	}
-
-	@Override
-	public boolean isPaired(Transaction txn) throws DbException {
-		return mailboxSettingsManager.getOwnMailboxProperties(txn) != null;
-	}
-
-	@Override
-	public MailboxStatus getMailboxStatus(Transaction txn) throws DbException {
-		return mailboxSettingsManager.getOwnMailboxStatus(txn);
-	}
-
-	@Nullable
-	@Override
-	public MailboxPairingTask getCurrentPairingTask() {
-		synchronized (lock) {
-			return pairingTask;
-		}
-	}
-
-	@Override
-	public MailboxPairingTask startPairingTask(String payload) {
-		MailboxPairingTask created;
-		synchronized (lock) {
-			if (pairingTask != null) return pairingTask;
-			created = pairingTaskFactory.createPairingTask(payload);
-			pairingTask = created;
-		}
-		ioExecutor.execute(() -> {
-			created.run();
-			synchronized (lock) {
-				// remove task after it finished
-				pairingTask = null;
-			}
-		});
-		return created;
-	}
-
-	@Override
-	public boolean checkConnection() {
-		boolean success;
-		try {
-			MailboxProperties props = db.transactionWithNullableResult(true,
-					mailboxSettingsManager::getOwnMailboxProperties);
-			success = api.checkStatus(props);
-		} catch (DbException | IOException | MailboxApi.ApiException e) {
-			success = false;
-			logException(LOG, WARNING, e);
-		}
-		if (success) {
-			try {
-				// we are only recording successful connections here
-				// as those update the UI and failures might be false negatives
-				db.transaction(false, txn ->
-						mailboxSettingsManager.recordSuccessfulConnection(txn,
-								clock.currentTimeMillis()));
-			} catch (DbException e) {
-				logException(LOG, WARNING, e);
-			}
-		}
-		return success;
-	}
-
-}

bramble-core/src/main/java/org/briarproject/bramble/mailbox/MailboxModule.java

@@ -1,86 +1,16 @@
 package org.briarproject.bramble.mailbox;
 
-import org.briarproject.bramble.api.client.ClientHelper;
-import org.briarproject.bramble.api.contact.ContactManager;
-import org.briarproject.bramble.api.data.MetadataEncoder;
-import org.briarproject.bramble.api.lifecycle.LifecycleManager;
-import org.briarproject.bramble.api.mailbox.MailboxManager;
-import org.briarproject.bramble.api.mailbox.MailboxPropertyManager;
 import org.briarproject.bramble.api.mailbox.MailboxSettingsManager;
-import org.briarproject.bramble.api.sync.validation.ValidationManager;
-import org.briarproject.bramble.api.system.Clock;
-import org.briarproject.bramble.api.versioning.ClientVersioningManager;
-
-import javax.inject.Inject;
-import javax.inject.Singleton;
 
 import dagger.Module;
 import dagger.Provides;
 
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.CLIENT_ID;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.MAJOR_VERSION;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.MINOR_VERSION;
-
 @Module
 public class MailboxModule {
 
-	public static class EagerSingletons {
-		@Inject
-		MailboxPropertyValidator mailboxPropertyValidator;
-		@Inject
-		MailboxPropertyManager mailboxPropertyManager;
-	}
-
-	@Provides
-	@Singleton
-	MailboxManager providesMailboxManager(MailboxManagerImpl mailboxManager) {
-		return mailboxManager;
-	}
-
-	@Provides
-	MailboxPairingTaskFactory provideMailboxPairingTaskFactory(
-			MailboxPairingTaskFactoryImpl mailboxPairingTaskFactory) {
-		return mailboxPairingTaskFactory;
-	}
-
 	@Provides
 	MailboxSettingsManager provideMailboxSettingsManager(
 			MailboxSettingsManagerImpl mailboxSettingsManager) {
 		return mailboxSettingsManager;
 	}
-
-	@Provides
-	MailboxApi providesMailboxApi(MailboxApiImpl mailboxApi) {
-		return mailboxApi;
-	}
-
-	@Provides
-	@Singleton
-	MailboxPropertyValidator provideMailboxPropertyValidator(
-			ValidationManager validationManager, ClientHelper clientHelper,
-			MetadataEncoder metadataEncoder, Clock clock) {
-		MailboxPropertyValidator validator = new MailboxPropertyValidator(
-				clientHelper, metadataEncoder, clock);
-		validationManager.registerMessageValidator(CLIENT_ID, MAJOR_VERSION,
-				validator);
-		return validator;
-	}
-
-	@Provides
-	@Singleton
-	MailboxPropertyManager provideMailboxPropertyManager(
-			LifecycleManager lifecycleManager,
-			ValidationManager validationManager, ContactManager contactManager,
-			ClientVersioningManager clientVersioningManager,
-			MailboxSettingsManager mailboxSettingsManager,
-			MailboxPropertyManagerImpl mailboxPropertyManager) {
-		lifecycleManager.registerOpenDatabaseHook(mailboxPropertyManager);
-		validationManager.registerIncomingMessageHook(CLIENT_ID, MAJOR_VERSION,
-				mailboxPropertyManager);
-		contactManager.registerContactHook(mailboxPropertyManager);
-		clientVersioningManager.registerClient(CLIENT_ID, MAJOR_VERSION,
-				MINOR_VERSION, mailboxPropertyManager);
-		mailboxSettingsManager.registerMailboxHook(mailboxPropertyManager);
-		return mailboxPropertyManager;
-	}
 }

bramble-core/src/main/java/org/briarproject/bramble/mailbox/MailboxPairingTaskFactory.java

@@ -1,12 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-
-import org.briarproject.bramble.api.mailbox.MailboxPairingTask;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-@NotNullByDefault
-interface MailboxPairingTaskFactory {
-
-	MailboxPairingTask createPairingTask(String qrCodePayload);
-
-}

bramble-core/src/main/java/org/briarproject/bramble/mailbox/MailboxPairingTaskFactoryImpl.java

@@ -1,53 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import org.briarproject.bramble.api.crypto.CryptoComponent;
-import org.briarproject.bramble.api.db.DatabaseComponent;
-import org.briarproject.bramble.api.event.EventExecutor;
-import org.briarproject.bramble.api.mailbox.MailboxPairingTask;
-import org.briarproject.bramble.api.mailbox.MailboxPropertyManager;
-import org.briarproject.bramble.api.mailbox.MailboxSettingsManager;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.system.Clock;
-
-import java.util.concurrent.Executor;
-
-import javax.annotation.concurrent.Immutable;
-import javax.inject.Inject;
-
-@Immutable
-@NotNullByDefault
-class MailboxPairingTaskFactoryImpl implements MailboxPairingTaskFactory {
-
-	private final Executor eventExecutor;
-	private final DatabaseComponent db;
-	private final CryptoComponent crypto;
-	private final Clock clock;
-	private final MailboxApi api;
-	private final MailboxSettingsManager mailboxSettingsManager;
-	private final MailboxPropertyManager mailboxPropertyManager;
-
-	@Inject
-	MailboxPairingTaskFactoryImpl(
-			@EventExecutor Executor eventExecutor,
-			DatabaseComponent db,
-			CryptoComponent crypto,
-			Clock clock,
-			MailboxApi api,
-			MailboxSettingsManager mailboxSettingsManager,
-			MailboxPropertyManager mailboxPropertyManager) {
-		this.eventExecutor = eventExecutor;
-		this.db = db;
-		this.crypto = crypto;
-		this.clock = clock;
-		this.api = api;
-		this.mailboxSettingsManager = mailboxSettingsManager;
-		this.mailboxPropertyManager = mailboxPropertyManager;
-	}
-
-	@Override
-	public MailboxPairingTask createPairingTask(String qrCodePayload) {
-		return new MailboxPairingTaskImpl(qrCodePayload, eventExecutor, db,
-				crypto, clock, api, mailboxSettingsManager,
-				mailboxPropertyManager);
-	}
-}

bramble-core/src/main/java/org/briarproject/bramble/mailbox/MailboxPairingTaskImpl.java

@@ -1,188 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import org.briarproject.bramble.api.Consumer;
-import org.briarproject.bramble.api.FormatException;
-import org.briarproject.bramble.api.contact.Contact;
-import org.briarproject.bramble.api.crypto.CryptoComponent;
-import org.briarproject.bramble.api.db.DatabaseComponent;
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.bramble.api.event.EventExecutor;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
-import org.briarproject.bramble.api.mailbox.MailboxPairingState;
-import org.briarproject.bramble.api.mailbox.MailboxPairingTask;
-import org.briarproject.bramble.api.mailbox.MailboxProperties;
-import org.briarproject.bramble.api.mailbox.MailboxPropertiesUpdate;
-import org.briarproject.bramble.api.mailbox.MailboxPropertyManager;
-import org.briarproject.bramble.api.mailbox.MailboxSettingsManager;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.system.Clock;
-import org.briarproject.bramble.mailbox.MailboxApi.ApiException;
-import org.briarproject.bramble.mailbox.MailboxApi.MailboxAlreadyPairedException;
-
-import java.io.IOException;
-import java.nio.charset.Charset;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-import java.util.concurrent.Executor;
-import java.util.logging.Logger;
-
-import javax.annotation.concurrent.GuardedBy;
-import javax.annotation.concurrent.ThreadSafe;
-
-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 MailboxPairingTaskImpl implements MailboxPairingTask {
-
-	private final static Logger LOG =
-			getLogger(MailboxPairingTaskImpl.class.getName());
-	@SuppressWarnings("CharsetObjectCanBeUsed") // Requires minSdkVersion >= 19
-	private static final Charset ISO_8859_1 = Charset.forName("ISO-8859-1");
-	private static final int VERSION_REQUIRED = 32;
-
-	private final String payload;
-	private final Executor eventExecutor;
-	private final DatabaseComponent db;
-	private final CryptoComponent crypto;
-	private final Clock clock;
-	private final MailboxApi api;
-	private final MailboxSettingsManager mailboxSettingsManager;
-	private final MailboxPropertyManager mailboxPropertyManager;
-
-	private final Object lock = new Object();
-	@GuardedBy("lock")
-	private final List<Consumer<MailboxPairingState>> observers =
-			new ArrayList<>();
-	@GuardedBy("lock")
-	private MailboxPairingState state;
-
-	MailboxPairingTaskImpl(
-			String payload,
-			@EventExecutor Executor eventExecutor,
-			DatabaseComponent db,
-			CryptoComponent crypto,
-			Clock clock,
-			MailboxApi api,
-			MailboxSettingsManager mailboxSettingsManager,
-			MailboxPropertyManager mailboxPropertyManager) {
-		this.payload = payload;
-		this.eventExecutor = eventExecutor;
-		this.db = db;
-		this.crypto = crypto;
-		this.clock = clock;
-		this.api = api;
-		this.mailboxSettingsManager = mailboxSettingsManager;
-		this.mailboxPropertyManager = mailboxPropertyManager;
-		state = new MailboxPairingState.QrCodeReceived();
-	}
-
-	@Override
-	public void addObserver(Consumer<MailboxPairingState> o) {
-		MailboxPairingState state;
-		synchronized (lock) {
-			observers.add(o);
-			state = this.state;
-			eventExecutor.execute(() -> o.accept(state));
-		}
-	}
-
-	@Override
-	public void removeObserver(Consumer<MailboxPairingState> o) {
-		synchronized (lock) {
-			observers.remove(o);
-		}
-	}
-
-	@Override
-	public void run() {
-		try {
-			pairMailbox();
-		} catch (FormatException e) {
-			onMailboxError(e, new MailboxPairingState.InvalidQrCode());
-		} catch (MailboxAlreadyPairedException e) {
-			onMailboxError(e, new MailboxPairingState.MailboxAlreadyPaired());
-		} catch (IOException e) {
-			onMailboxError(e, new MailboxPairingState.ConnectionError());
-		} catch (ApiException | DbException e) {
-			onMailboxError(e, new MailboxPairingState.UnexpectedError());
-		}
-	}
-
-	private void pairMailbox() throws IOException, ApiException, DbException {
-		MailboxProperties mailboxProperties = decodeQrCodePayload(payload);
-		setState(new MailboxPairingState.Pairing());
-		MailboxAuthToken ownerToken = api.setup(mailboxProperties);
-		MailboxProperties ownerProperties = new MailboxProperties(
-				mailboxProperties.getBaseUrl(), ownerToken, true);
-		long time = clock.currentTimeMillis();
-		db.transaction(false, txn -> {
-			mailboxSettingsManager
-					.setOwnMailboxProperties(txn, ownerProperties);
-			mailboxSettingsManager.recordSuccessfulConnection(txn, time);
-			// A (possibly new) mailbox is paired. Reset message retransmission
-			// timers for contacts who doesn't have their own mailbox. This way,
-			// data stranded on our old mailbox will be re-uploaded to our new.
-			for (Contact c : db.getContacts(txn)) {
-				MailboxPropertiesUpdate remoteProps = mailboxPropertyManager
-						.getRemoteProperties(txn, c.getId());
-				if (remoteProps == null) {
-					db.resetUnackedMessagesToSend(txn, c.getId());
-				}
-			}
-		});
-		setState(new MailboxPairingState.Paired());
-	}
-
-	private void onMailboxError(Exception e, MailboxPairingState state) {
-		logException(LOG, WARNING, e);
-		setState(state);
-	}
-
-	private void setState(MailboxPairingState state) {
-		synchronized (lock) {
-			this.state = state;
-			notifyObservers();
-		}
-	}
-
-	@GuardedBy("lock")
-	private void notifyObservers() {
-		List<Consumer<MailboxPairingState>> observers =
-				new ArrayList<>(this.observers);
-		MailboxPairingState state = this.state;
-		eventExecutor.execute(() -> {
-			for (Consumer<MailboxPairingState> o : observers) o.accept(state);
-		});
-	}
-
-	private MailboxProperties decodeQrCodePayload(String payload)
-			throws FormatException {
-		byte[] bytes = payload.getBytes(ISO_8859_1);
-		if (bytes.length != 65) {
-			if (LOG.isLoggable(WARNING)) {
-				LOG.warning("QR code length is not 65: " + bytes.length);
-			}
-			throw new FormatException();
-		}
-		int version = bytes[0] & 0xFF;
-		if (version != VERSION_REQUIRED) {
-			if (LOG.isLoggable(WARNING)) {
-				LOG.warning("QR code has not version " + VERSION_REQUIRED +
-						": " + version);
-			}
-			throw new FormatException();
-		}
-		LOG.info("QR code is valid");
-		byte[] onionPubKey = Arrays.copyOfRange(bytes, 1, 33);
-		String onion = crypto.encodeOnion(onionPubKey);
-		String baseUrl = "http://" + onion + ".onion";
-		byte[] tokenBytes = Arrays.copyOfRange(bytes, 33, 65);
-		MailboxAuthToken setupToken = new MailboxAuthToken(tokenBytes);
-		return new MailboxProperties(baseUrl, setupToken, true);
-	}
-
-}

bramble-core/src/main/java/org/briarproject/bramble/mailbox/MailboxPropertyManagerImpl.java

@@ -1,303 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import org.briarproject.bramble.api.FormatException;
-import org.briarproject.bramble.api.client.ClientHelper;
-import org.briarproject.bramble.api.client.ContactGroupFactory;
-import org.briarproject.bramble.api.contact.Contact;
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.contact.ContactManager.ContactHook;
-import org.briarproject.bramble.api.crypto.CryptoComponent;
-import org.briarproject.bramble.api.data.BdfDictionary;
-import org.briarproject.bramble.api.data.BdfList;
-import org.briarproject.bramble.api.data.MetadataParser;
-import org.briarproject.bramble.api.db.DatabaseComponent;
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.bramble.api.db.Metadata;
-import org.briarproject.bramble.api.db.Transaction;
-import org.briarproject.bramble.api.lifecycle.LifecycleManager.OpenDatabaseHook;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
-import org.briarproject.bramble.api.mailbox.MailboxFolderId;
-import org.briarproject.bramble.api.mailbox.MailboxProperties;
-import org.briarproject.bramble.api.mailbox.MailboxPropertiesUpdate;
-import org.briarproject.bramble.api.mailbox.MailboxPropertyManager;
-import org.briarproject.bramble.api.mailbox.MailboxSettingsManager;
-import org.briarproject.bramble.api.mailbox.MailboxSettingsManager.MailboxHook;
-import org.briarproject.bramble.api.mailbox.RemoteMailboxPropertiesUpdateEvent;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.sync.Group;
-import org.briarproject.bramble.api.sync.Group.Visibility;
-import org.briarproject.bramble.api.sync.GroupId;
-import org.briarproject.bramble.api.sync.InvalidMessageException;
-import org.briarproject.bramble.api.sync.Message;
-import org.briarproject.bramble.api.sync.MessageId;
-import org.briarproject.bramble.api.sync.validation.IncomingMessageHook;
-import org.briarproject.bramble.api.system.Clock;
-import org.briarproject.bramble.api.versioning.ClientVersioningManager;
-import org.briarproject.bramble.api.versioning.ClientVersioningManager.ClientVersioningHook;
-
-import java.util.Map;
-import java.util.Map.Entry;
-
-import javax.annotation.Nullable;
-import javax.inject.Inject;
-
-import static org.briarproject.bramble.api.sync.validation.IncomingMessageHook.DeliveryAction.ACCEPT_DO_NOT_SHARE;
-
-@NotNullByDefault
-class MailboxPropertyManagerImpl implements MailboxPropertyManager,
-		OpenDatabaseHook, ContactHook, ClientVersioningHook,
-		IncomingMessageHook, MailboxHook {
-
-	private final DatabaseComponent db;
-	private final ClientHelper clientHelper;
-	private final ClientVersioningManager clientVersioningManager;
-	private final MetadataParser metadataParser;
-	private final ContactGroupFactory contactGroupFactory;
-	private final Clock clock;
-	private final MailboxSettingsManager mailboxSettingsManager;
-	private final CryptoComponent crypto;
-	private final Group localGroup;
-
-	@Inject
-	MailboxPropertyManagerImpl(DatabaseComponent db, ClientHelper clientHelper,
-			ClientVersioningManager clientVersioningManager,
-			MetadataParser metadataParser,
-			ContactGroupFactory contactGroupFactory, Clock clock,
-			MailboxSettingsManager mailboxSettingsManager,
-			CryptoComponent crypto) {
-		this.db = db;
-		this.clientHelper = clientHelper;
-		this.clientVersioningManager = clientVersioningManager;
-		this.metadataParser = metadataParser;
-		this.contactGroupFactory = contactGroupFactory;
-		this.clock = clock;
-		this.mailboxSettingsManager = mailboxSettingsManager;
-		this.crypto = crypto;
-		localGroup = contactGroupFactory.createLocalGroup(CLIENT_ID,
-				MAJOR_VERSION);
-	}
-
-	@Override
-	public void onDatabaseOpened(Transaction txn) throws DbException {
-		if (db.containsGroup(txn, localGroup.getId())) {
-			return;
-		}
-		db.addGroup(txn, localGroup);
-		// Set things up for any pre-existing contacts
-		for (Contact c : db.getContacts(txn)) {
-			addingContact(txn, c);
-		}
-	}
-
-	@Override
-	public void addingContact(Transaction txn, Contact c) throws DbException {
-		// Create a group to share with the contact
-		Group g = getContactGroup(c);
-		db.addGroup(txn, g);
-		// Apply the client's visibility to the contact group
-		Visibility client = clientVersioningManager
-				.getClientVisibility(txn, c.getId(), CLIENT_ID, MAJOR_VERSION);
-		db.setGroupVisibility(txn, c.getId(), g.getId(), client);
-		// Attach the contact ID to the group
-		clientHelper.setContactId(txn, g.getId(), c.getId());
-		// If we are paired, create and send props to the newly added contact
-		MailboxProperties ownProps =
-				mailboxSettingsManager.getOwnMailboxProperties(txn);
-		if (ownProps != null) {
-			createAndSendProperties(txn, c, ownProps.getOnion());
-		}
-	}
-
-	@Override
-	public void removingContact(Transaction txn, Contact c) throws DbException {
-		db.removeGroup(txn, getContactGroup(c));
-	}
-
-	@Override
-	public void mailboxPaired(Transaction txn, String ownOnion)
-			throws DbException {
-		for (Contact c : db.getContacts(txn)) {
-			createAndSendProperties(txn, c, ownOnion);
-		}
-	}
-
-	@Override
-	public void mailboxUnpaired(Transaction txn) throws DbException {
-		for (Contact c : db.getContacts(txn)) {
-			sendEmptyProperties(txn, c);
-		}
-	}
-
-	@Override
-	public void onClientVisibilityChanging(Transaction txn, Contact c,
-			Visibility v) throws DbException {
-		// Apply the client's visibility to the contact group
-		Group g = getContactGroup(c);
-		db.setGroupVisibility(txn, c.getId(), g.getId(), v);
-	}
-
-	@Override
-	public DeliveryAction incomingMessage(Transaction txn, Message m,
-			Metadata meta) throws DbException, InvalidMessageException {
-		try {
-			BdfDictionary d = metadataParser.parse(meta);
-			// Get latest non-local update in the same group (from same contact)
-			LatestUpdate latest = findLatest(txn, m.getGroupId(), false);
-			if (latest != null) {
-				if (d.getLong(MSG_KEY_VERSION) > latest.version) {
-					db.deleteMessage(txn, latest.messageId);
-					db.deleteMessageMetadata(txn, latest.messageId);
-				} else {
-					// Delete this update, we already have a newer one
-					db.deleteMessage(txn, m.getId());
-					db.deleteMessageMetadata(txn, m.getId());
-					return ACCEPT_DO_NOT_SHARE;
-				}
-			}
-			ContactId c = clientHelper.getContactId(txn, m.getGroupId());
-			BdfList body = clientHelper.getMessageAsList(txn, m.getId());
-			MailboxPropertiesUpdate p = parseProperties(body);
-			txn.attach(new RemoteMailboxPropertiesUpdateEvent(c, p));
-			// Reset message retransmission timers for the contact. Avoiding
-			// messages getting stranded:
-			// - on our mailbox, if they now have a mailbox but didn't before
-			// - on the contact's old mailbox, if they removed their mailbox
-			// - on the contact's old mailbox, if they replaced their mailbox
-			db.resetUnackedMessagesToSend(txn, c);
-		} catch (FormatException e) {
-			throw new InvalidMessageException(e);
-		}
-		return ACCEPT_DO_NOT_SHARE;
-	}
-
-	@Override
-	@Nullable
-	public MailboxPropertiesUpdate getLocalProperties(Transaction txn,
-			ContactId c) throws DbException {
-		return getProperties(txn, db.getContact(txn, c), true);
-	}
-
-	@Override
-	@Nullable
-	public MailboxPropertiesUpdate getRemoteProperties(Transaction txn,
-			ContactId c) throws DbException {
-		return getProperties(txn, db.getContact(txn, c), false);
-	}
-
-	/**
-	 * Creates and sends an update message to the given contact. The message
-	 * holds our own mailbox's onion, and generated unique properties. All of
-	 * which the contact needs to communicate with our Mailbox.
-	 */
-	private void createAndSendProperties(Transaction txn,
-			Contact c, String ownOnion) throws DbException {
-		MailboxPropertiesUpdate p = new MailboxPropertiesUpdate(ownOnion,
-				new MailboxAuthToken(crypto.generateUniqueId().getBytes()),
-				new MailboxFolderId(crypto.generateUniqueId().getBytes()),
-				new MailboxFolderId(crypto.generateUniqueId().getBytes()));
-		Group g = getContactGroup(c);
-		storeMessageReplaceLatest(txn, g.getId(), p);
-	}
-
-	/**
-	 * Sends an empty update message to the given contact. The empty update
-	 * indicates for the receiving contact that we no longer have a Mailbox that
-	 * they can use.
-	 */
-	private void sendEmptyProperties(Transaction txn, Contact c)
-			throws DbException {
-		Group g = getContactGroup(c);
-		storeMessageReplaceLatest(txn, g.getId(), null);
-	}
-
-	@Nullable
-	private MailboxPropertiesUpdate getProperties(Transaction txn,
-			Contact c, boolean local) throws DbException {
-		MailboxPropertiesUpdate p = null;
-		Group g = getContactGroup(c);
-		try {
-			LatestUpdate latest = findLatest(txn, g.getId(), local);
-			if (latest != null) {
-				BdfList body =
-						clientHelper.getMessageAsList(txn, latest.messageId);
-				p = parseProperties(body);
-			}
-		} catch (FormatException e) {
-			throw new DbException(e);
-		}
-		return p;
-	}
-
-	private void storeMessageReplaceLatest(Transaction txn, GroupId g,
-			@Nullable MailboxPropertiesUpdate p) throws DbException {
-		try {
-			LatestUpdate latest = findLatest(txn, g, true);
-			long version = latest == null ? 1 : latest.version + 1;
-			Message m = clientHelper.createMessage(g, clock.currentTimeMillis(),
-					encodeProperties(version, p));
-			BdfDictionary meta = new BdfDictionary();
-			meta.put(MSG_KEY_VERSION, version);
-			meta.put(MSG_KEY_LOCAL, true);
-			clientHelper.addLocalMessage(txn, m, meta, true, false);
-			if (latest != null) {
-				db.removeMessage(txn, latest.messageId);
-			}
-		} catch (FormatException e) {
-			throw new DbException(e);
-		}
-	}
-
-	@Nullable
-	private LatestUpdate findLatest(Transaction txn, GroupId g, boolean local)
-			throws DbException, FormatException {
-		Map<MessageId, BdfDictionary> metadata =
-				clientHelper.getMessageMetadataAsDictionary(txn, g);
-		// We should have at most 1 local and 1 remote
-		if (metadata.size() > 2) {
-			throw new IllegalStateException();
-		}
-		for (Entry<MessageId, BdfDictionary> e : metadata.entrySet()) {
-			BdfDictionary meta = e.getValue();
-			if (meta.getBoolean(MSG_KEY_LOCAL) == local) {
-				return new LatestUpdate(e.getKey(),
-						meta.getLong(MSG_KEY_VERSION));
-			}
-		}
-		return null;
-	}
-
-	private BdfList encodeProperties(long version,
-			@Nullable MailboxPropertiesUpdate p) {
-		BdfDictionary dict = new BdfDictionary();
-		if (p != null) {
-			dict.put(PROP_KEY_ONION, p.getOnion());
-			dict.put(PROP_KEY_AUTHTOKEN, p.getAuthToken().getBytes());
-			dict.put(PROP_KEY_INBOXID, p.getInboxId().getBytes());
-			dict.put(PROP_KEY_OUTBOXID, p.getOutboxId().getBytes());
-		}
-		return BdfList.of(version, dict);
-	}
-
-	@Nullable
-	private MailboxPropertiesUpdate parseProperties(BdfList body)
-			throws FormatException {
-		BdfDictionary dict = body.getDictionary(1);
-		return clientHelper.parseAndValidateMailboxPropertiesUpdate(dict);
-	}
-
-	private Group getContactGroup(Contact c) {
-		return contactGroupFactory.createContactGroup(CLIENT_ID, MAJOR_VERSION,
-				c);
-	}
-
-	private static class LatestUpdate {
-
-		private final MessageId messageId;
-		private final long version;
-
-		private LatestUpdate(MessageId messageId, long version) {
-			this.messageId = messageId;
-			this.version = version;
-		}
-	}
-}

bramble-core/src/main/java/org/briarproject/bramble/mailbox/MailboxPropertyValidator.java

@@ -1,49 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import org.briarproject.bramble.api.FormatException;
-import org.briarproject.bramble.api.client.BdfMessageContext;
-import org.briarproject.bramble.api.client.BdfMessageValidator;
-import org.briarproject.bramble.api.client.ClientHelper;
-import org.briarproject.bramble.api.data.BdfDictionary;
-import org.briarproject.bramble.api.data.BdfList;
-import org.briarproject.bramble.api.data.MetadataEncoder;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.sync.Group;
-import org.briarproject.bramble.api.sync.InvalidMessageException;
-import org.briarproject.bramble.api.sync.Message;
-import org.briarproject.bramble.api.system.Clock;
-
-import javax.annotation.concurrent.Immutable;
-
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.MSG_KEY_LOCAL;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.MSG_KEY_VERSION;
-import static org.briarproject.bramble.util.ValidationUtils.checkSize;
-
-@Immutable
-@NotNullByDefault
-class MailboxPropertyValidator extends BdfMessageValidator {
-
-	MailboxPropertyValidator(ClientHelper clientHelper,
-			MetadataEncoder metadataEncoder, Clock clock) {
-		super(clientHelper, metadataEncoder, clock);
-	}
-
-	@Override
-	protected BdfMessageContext validateMessage(Message m, Group g,
-			BdfList body) throws InvalidMessageException, FormatException {
-		// Version, properties
-		checkSize(body, 2);
-		// Version
-		long version = body.getLong(0);
-		if (version < 0) throw new FormatException();
-		// Properties
-		BdfDictionary dictionary = body.getDictionary(1);
-		clientHelper.parseAndValidateMailboxPropertiesUpdate(dictionary);
-		// Return the metadata
-		BdfDictionary meta = new BdfDictionary();
-		meta.put(MSG_KEY_VERSION, version);
-		meta.put(MSG_KEY_LOCAL, false);
-		return new BdfMessageContext(meta);
-	}
-
-}

bramble-core/src/main/java/org/briarproject/bramble/mailbox/MailboxSettingsManagerImpl.java

@@ -1,22 +1,14 @@
 package org.briarproject.bramble.mailbox;
 
-import org.briarproject.bramble.api.contact.ContactId;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.Transaction;
-import org.briarproject.bramble.api.mailbox.InvalidMailboxIdException;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
 import org.briarproject.bramble.api.mailbox.MailboxProperties;
 import org.briarproject.bramble.api.mailbox.MailboxSettingsManager;
 import org.briarproject.bramble.api.mailbox.MailboxStatus;
-import org.briarproject.bramble.api.mailbox.OwnMailboxConnectionStatusEvent;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.settings.Settings;
 import org.briarproject.bramble.api.settings.SettingsManager;
 
-import java.util.List;
-import java.util.concurrent.CopyOnWriteArrayList;
-
-import javax.annotation.Nullable;
 import javax.annotation.concurrent.Immutable;
 import javax.inject.Inject;
 
@@ -33,21 +25,14 @@ class MailboxSettingsManagerImpl implements MailboxSettingsManager {
 	static final String SETTINGS_KEY_LAST_ATTEMPT = "lastAttempt";
 	static final String SETTINGS_KEY_LAST_SUCCESS = "lastSuccess";
 	static final String SETTINGS_KEY_ATTEMPTS = "attempts";
-	static final String SETTINGS_UPLOADS_NAMESPACE = "mailbox-uploads";
 
 	private final SettingsManager settingsManager;
-	private final List<MailboxHook> hooks = new CopyOnWriteArrayList<>();
 
 	@Inject
 	MailboxSettingsManagerImpl(SettingsManager settingsManager) {
 		this.settingsManager = settingsManager;
 	}
 
-	@Override
-	public void registerMailboxHook(MailboxHook hook) {
-		hooks.add(hook);
-	}
-
 	@Override
 	public MailboxProperties getOwnMailboxProperties(Transaction txn)
 			throws DbException {
@@ -55,24 +40,16 @@ class MailboxSettingsManagerImpl implements MailboxSettingsManager {
 		String onion = s.get(SETTINGS_KEY_ONION);
 		String token = s.get(SETTINGS_KEY_TOKEN);
 		if (isNullOrEmpty(onion) || isNullOrEmpty(token)) return null;
-		try {
-			MailboxAuthToken tokenId = MailboxAuthToken.fromString(token);
-			return new MailboxProperties(onion, tokenId, true);
-		} catch (InvalidMailboxIdException e) {
-			throw new DbException(e);
-		}
+		return new MailboxProperties(onion, token, true);
 	}
 
 	@Override
 	public void setOwnMailboxProperties(Transaction txn, MailboxProperties p)
 			throws DbException {
 		Settings s = new Settings();
-		s.put(SETTINGS_KEY_ONION, p.getBaseUrl());
-		s.put(SETTINGS_KEY_TOKEN, p.getAuthToken().toString());
+		s.put(SETTINGS_KEY_ONION, p.getOnionAddress());
+		s.put(SETTINGS_KEY_TOKEN, p.getAuthToken());
 		settingsManager.mergeSettings(txn, s, SETTINGS_NAMESPACE);
-		for (MailboxHook hook : hooks) {
-			hook.mailboxPaired(txn, p.getOnion());
-		}
 	}
 
 	@Override
@@ -93,8 +70,6 @@ class MailboxSettingsManagerImpl implements MailboxSettingsManager {
 		s.putLong(SETTINGS_KEY_LAST_SUCCESS, now);
 		s.putInt(SETTINGS_KEY_ATTEMPTS, 0);
 		settingsManager.mergeSettings(txn, s, SETTINGS_NAMESPACE);
-		MailboxStatus status = new MailboxStatus(now, now, 0);
-		txn.attach(new OwnMailboxConnectionStatusEvent(status));
 	}
 
 	@Override
@@ -102,33 +77,10 @@ class MailboxSettingsManagerImpl implements MailboxSettingsManager {
 			throws DbException {
 		Settings oldSettings =
 				settingsManager.getSettings(txn, SETTINGS_NAMESPACE);
-		int newAttempts = 1 + oldSettings.getInt(SETTINGS_KEY_ATTEMPTS, 0);
-		long lastSuccess = oldSettings.getLong(SETTINGS_KEY_LAST_SUCCESS, 0);
+		int attempts = oldSettings.getInt(SETTINGS_KEY_ATTEMPTS, 0);
 		Settings newSettings = new Settings();
 		newSettings.putLong(SETTINGS_KEY_LAST_ATTEMPT, now);
-		newSettings.putInt(SETTINGS_KEY_ATTEMPTS, newAttempts);
+		newSettings.putInt(SETTINGS_KEY_ATTEMPTS, attempts + 1);
 		settingsManager.mergeSettings(txn, newSettings, SETTINGS_NAMESPACE);
-		MailboxStatus status = new MailboxStatus(now, lastSuccess, newAttempts);
-		txn.attach(new OwnMailboxConnectionStatusEvent(status));
-	}
-
-	@Override
-	public void setPendingUpload(Transaction txn, ContactId id,
-			@Nullable String filename) throws DbException {
-		Settings s = new Settings();
-		String value = filename == null ? "" : filename;
-		s.put(String.valueOf(id.getInt()), value);
-		settingsManager.mergeSettings(txn, s, SETTINGS_UPLOADS_NAMESPACE);
-	}
-
-	@Nullable
-	@Override
-	public String getPendingUpload(Transaction txn, ContactId id)
-			throws DbException {
-		Settings s =
-				settingsManager.getSettings(txn, SETTINGS_UPLOADS_NAMESPACE);
-		String filename = s.get(String.valueOf(id.getInt()));
-		if (isNullOrEmpty(filename)) return null;
-		return filename;
 	}
 }

bramble-core/src/main/java/org/briarproject/bramble/plugin/file/RemovableDriveTaskRegistry.java

@@ -3,7 +3,6 @@ package org.briarproject.bramble.plugin.file;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.plugin.file.RemovableDriveTask;
 
-@Deprecated // We can simply remove tasks when they finish
 @NotNullByDefault
 interface RemovableDriveTaskRegistry {
 

bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/CircumventionProvider.java

@@ -1,73 +1,40 @@
 package org.briarproject.bramble.plugin.tor;
 
 import org.briarproject.bramble.api.lifecycle.IoExecutor;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 import java.util.List;
 
-@NotNullByDefault
-public interface CircumventionProvider {
+// TODO: Create a module for this so it doesn't have to be public
 
-	enum BridgeType {
-		DEFAULT_OBFS4,
-		NON_DEFAULT_OBFS4,
-		VANILLA,
-		MEEK
-	}
+public interface CircumventionProvider {
 
 	/**
 	 * Countries where Tor is blocked, i.e. vanilla Tor connection won't work.
-	 * <p>
+	 *
 	 * See https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2
 	 * and https://trac.torproject.org/projects/tor/wiki/doc/OONI/censorshipwiki
 	 */
-	String[] BLOCKED = {"BY", "CN", "EG", "IR", "RU", "TM", "VE"};
+	String[] BLOCKED = {"CN", "IR", "EG", "BY", "TR", "SY", "VE"};
 
 	/**
-	 * Countries where bridge connections are likely to work.
-	 * Should be a subset of {@link #BLOCKED} and the union of
-	 * {@link #DEFAULT_BRIDGES}, {@link #NON_DEFAULT_BRIDGES} and
-	 * {@link #MEEK_BRIDGES}.
+	 * Countries where obfs4 or meek bridge connections are likely to work.
+	 * Should be a subset of {@link #BLOCKED}.
 	 */
-	String[] BRIDGES = {"BY", "CN", "EG", "IR", "RU", "TM", "VE"};
+	String[] BRIDGES = { "CN", "IR", "EG", "BY", "TR", "SY", "VE" };
 
 	/**
-	 * Countries where default obfs4 or vanilla bridges are likely to work.
+	 * Countries where obfs4 bridges won't work and meek is needed.
 	 * Should be a subset of {@link #BRIDGES}.
 	 */
-	String[] DEFAULT_BRIDGES = {"EG", "VE"};
+	String[] NEEDS_MEEK = {"CN", "IR"};
 
-	/**
-	 * Countries where non-default obfs4 or vanilla bridges are likely to work.
-	 * Should be a subset of {@link #BRIDGES}.
-	 */
-	String[] NON_DEFAULT_BRIDGES = {"BY", "RU", "TM"};
-
-	/**
-	 * Countries where obfs4 and vanilla bridges won't work and meek is needed.
-	 * Should be a subset of {@link #BRIDGES}.
-	 */
-	String[] MEEK_BRIDGES = {"CN", "IR"};
-
-	/**
-	 * Returns true if vanilla Tor connections are blocked in the given country.
-	 */
 	boolean isTorProbablyBlocked(String countryCode);
 
-	/**
-	 * Returns true if bridge connections of some type work in the given
-	 * country.
-	 */
 	boolean doBridgesWork(String countryCode);
 
-	/**
-	 * Returns the types of bridge connection that are suitable for the given
-	 * country, or {@link #DEFAULT_BRIDGES} if no bridge type is known
-	 * to work.
-	 */
-	List<BridgeType> getSuitableBridgeTypes(String countryCode);
+	boolean needsMeek(String countryCode);
 
 	@IoExecutor
-	List<String> getBridges(BridgeType type);
+	List<String> getBridges(boolean meek);
 
 }

bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/CircumventionProviderImpl.java

@@ -1,7 +1,6 @@
 package org.briarproject.bramble.plugin.tor;
 
 import org.briarproject.bramble.api.lifecycle.IoExecutor;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 import java.io.InputStream;
 import java.util.ArrayList;
@@ -10,33 +9,24 @@ import java.util.List;
 import java.util.Scanner;
 import java.util.Set;
 
-import javax.annotation.concurrent.Immutable;
+import javax.annotation.Nullable;
 import javax.inject.Inject;
 
 import static java.util.Arrays.asList;
-import static java.util.Collections.singletonList;
-import static org.briarproject.bramble.api.nullsafety.NullSafety.requireNonNull;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType.DEFAULT_OBFS4;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType.MEEK;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType.NON_DEFAULT_OBFS4;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType.VANILLA;
 
-@Immutable
-@NotNullByDefault
 class CircumventionProviderImpl implements CircumventionProvider {
 
 	private final static String BRIDGE_FILE_NAME = "bridges";
 
 	private static final Set<String> BLOCKED_IN_COUNTRIES =
 			new HashSet<>(asList(BLOCKED));
-	private static final Set<String> BRIDGE_COUNTRIES =
+	private static final Set<String> BRIDGES_WORK_IN_COUNTRIES =
 			new HashSet<>(asList(BRIDGES));
-	private static final Set<String> DEFAULT_OBFS4_BRIDGE_COUNTRIES =
-			new HashSet<>(asList(DEFAULT_BRIDGES));
-	private static final Set<String> NON_DEFAULT_BRIDGE_COUNTRIES =
-			new HashSet<>(asList(NON_DEFAULT_BRIDGES));
-	private static final Set<String> MEEK_COUNTRIES =
-			new HashSet<>(asList(MEEK_BRIDGES));
+	private static final Set<String> BRIDGES_NEED_MEEK =
+			new HashSet<>(asList(NEEDS_MEEK));
+
+	@Nullable
+	private volatile List<String> bridges = null;
 
 	@Inject
 	CircumventionProviderImpl() {
@@ -49,40 +39,33 @@ class CircumventionProviderImpl implements CircumventionProvider {
 
 	@Override
 	public boolean doBridgesWork(String countryCode) {
-		return BRIDGE_COUNTRIES.contains(countryCode);
+		return BRIDGES_WORK_IN_COUNTRIES.contains(countryCode);
 	}
 
 	@Override
-	public List<BridgeType> getSuitableBridgeTypes(String countryCode) {
-		if (DEFAULT_OBFS4_BRIDGE_COUNTRIES.contains(countryCode)) {
-			return asList(DEFAULT_OBFS4, VANILLA);
-		} else if (NON_DEFAULT_BRIDGE_COUNTRIES.contains(countryCode)) {
-			return asList(NON_DEFAULT_OBFS4, VANILLA);
-		} else if (MEEK_COUNTRIES.contains(countryCode)) {
-			return singletonList(MEEK);
-		} else {
-			return asList(DEFAULT_OBFS4, VANILLA);
-		}
+	public boolean needsMeek(String countryCode) {
+		return BRIDGES_NEED_MEEK.contains(countryCode);
 	}
 
 	@Override
 	@IoExecutor
-	public List<String> getBridges(BridgeType type) {
-		InputStream is = requireNonNull(getClass().getClassLoader()
-				.getResourceAsStream(BRIDGE_FILE_NAME));
+	public List<String> getBridges(boolean useMeek) {
+		List<String> bridges = this.bridges;
+		if (bridges != null) return new ArrayList<>(bridges);
+
+		InputStream is = getClass().getClassLoader()
+				.getResourceAsStream(BRIDGE_FILE_NAME);
 		Scanner scanner = new Scanner(is);
 
-		List<String> bridges = new ArrayList<>();
+		bridges = new ArrayList<>();
 		while (scanner.hasNextLine()) {
 			String line = scanner.nextLine();
-			if ((type == DEFAULT_OBFS4 && line.startsWith("d ")) ||
-					(type == NON_DEFAULT_OBFS4 && line.startsWith("n ")) ||
-					(type == VANILLA && line.startsWith("v ")) ||
-					(type == MEEK && line.startsWith("m "))) {
-				bridges.add(line.substring(2));
-			}
+			boolean isMeekBridge = line.startsWith("Bridge meek");
+			if (useMeek && !isMeekBridge || !useMeek && isMeekBridge) continue;
+			if (!line.startsWith("#")) bridges.add(line);
 		}
 		scanner.close();
+		this.bridges = bridges;
 		return bridges;
 	}
 

bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java

@@ -33,7 +33,6 @@ import org.briarproject.bramble.api.settings.event.SettingsUpdatedEvent;
 import org.briarproject.bramble.api.system.Clock;
 import org.briarproject.bramble.api.system.LocationUtils;
 import org.briarproject.bramble.api.system.ResourceProvider;
-import org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType;
 
 import java.io.ByteArrayInputStream;
 import java.io.EOFException;
@@ -85,6 +84,7 @@ import static org.briarproject.bramble.api.plugin.TorConstants.ID;
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_MOBILE;
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK;
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK_AUTOMATIC;
+import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK_NEVER;
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK_WITH_BRIDGES;
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_ONLY_WHEN_CHARGING;
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_PORT;
@@ -92,9 +92,6 @@ import static org.briarproject.bramble.api.plugin.TorConstants.PROP_ONION_V3;
 import static org.briarproject.bramble.api.plugin.TorConstants.REASON_BATTERY;
 import static org.briarproject.bramble.api.plugin.TorConstants.REASON_COUNTRY_BLOCKED;
 import static org.briarproject.bramble.api.plugin.TorConstants.REASON_MOBILE_DATA;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType.DEFAULT_OBFS4;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType.MEEK;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType.NON_DEFAULT_OBFS4;
 import static org.briarproject.bramble.plugin.tor.TorRendezvousCrypto.SEED_BYTES;
 import static org.briarproject.bramble.util.IoUtils.copyAndClose;
 import static org.briarproject.bramble.util.IoUtils.tryToClose;
@@ -109,14 +106,7 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 	private static final Logger LOG = getLogger(TorPlugin.class.getName());
 
 	private static final String[] EVENTS = {
-			"CIRC",
-			"ORCONN",
-			"STATUS_GENERAL",
-			"STATUS_CLIENT",
-			"HS_DESC",
-			"NOTICE",
-			"WARN",
-			"ERR"
+			"CIRC", "ORCONN", "HS_DESC", "NOTICE", "WARN", "ERR"
 	};
 	private static final String OWNER = "__OwningControllerProcess";
 	private static final int COOKIE_TIMEOUT_MS = 3000;
@@ -236,7 +226,7 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 			}
 		}
 		// Load the settings
-		settings = callback.getSettings();
+		settings = migrateSettings(callback.getSettings());
 		// Install or update the assets if necessary
 		if (!assetsAreUpToDate()) installAssets();
 		if (cookieFile.exists() && !cookieFile.delete())
@@ -310,17 +300,11 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 			controlConnection.setEventHandler(this);
 			controlConnection.setEvents(asList(EVENTS));
 			// Check whether Tor has already bootstrapped
-			String info = controlConnection.getInfo("status/bootstrap-phase");
-			if (info != null && info.contains("PROGRESS=100")) {
+			String phase = controlConnection.getInfo("status/bootstrap-phase");
+			if (phase != null && phase.contains("PROGRESS=100")) {
 				LOG.info("Tor has already bootstrapped");
 				state.setBootstrapped();
 			}
-			// Check whether Tor has already built a circuit
-			info = controlConnection.getInfo("status/circuit-established");
-			if ("1".equals(info)) {
-				LOG.info("Tor has already built a circuit");
-				state.getAndSetCircuitBuilt(true);
-			}
 		} catch (IOException e) {
 			throw new PluginException(e);
 		}
@@ -332,6 +316,18 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		bind();
 	}
 
+	// TODO: Remove after a reasonable migration period (added 2020-06-25)
+	private Settings migrateSettings(Settings settings) {
+		int network = settings.getInt(PREF_TOR_NETWORK,
+				DEFAULT_PREF_TOR_NETWORK);
+		if (network == PREF_TOR_NETWORK_NEVER) {
+			settings.putInt(PREF_TOR_NETWORK, DEFAULT_PREF_TOR_NETWORK);
+			settings.putBoolean(PREF_PLUGIN_ENABLE, false);
+			callback.mergeSettings(settings);
+		}
+		return settings;
+	}
+
 	private boolean assetsAreUpToDate() {
 		return doneFile.lastModified() > getLastUpdateTime();
 	}
@@ -341,14 +337,9 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 			// The done file may already exist from a previous installation
 			//noinspection ResultOfMethodCallIgnored
 			doneFile.delete();
-			// The GeoIP file may exist from a previous installation - we can
-			// save some space by deleting it.
-			// TODO: Remove after a reasonable migration period
-			//  (added 2022-03-29)
-			//noinspection ResultOfMethodCallIgnored
-			geoIpFile.delete();
 			installTorExecutable();
 			installObfs4Executable();
+			extract(getGeoIpInputStream(), geoIpFile);
 			extract(getConfigInputStream(), configFile);
 			if (!doneFile.createNewFile())
 				LOG.warning("Failed to create done file");
@@ -386,6 +377,14 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		return zin;
 	}
 
+	private InputStream getGeoIpInputStream() throws IOException {
+		InputStream in = resourceProvider.getResourceInputStream("geoip",
+				".zip");
+		ZipInputStream zin = new ZipInputStream(in);
+		if (zin.getNextEntry() == null) throw new IOException();
+		return zin;
+	}
+
 	private InputStream getObfs4InputStream() throws IOException {
 		InputStream in = resourceProvider
 				.getResourceInputStream("obfs4proxy_" + architecture, ".zip");
@@ -543,24 +542,20 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		controlConnection.setConf("DisableNetwork", enable ? "0" : "1");
 	}
 
-	private void enableBridges(boolean enable, List<BridgeType> bridgeTypes)
+	private void enableBridges(boolean enable, boolean needsMeek)
 			throws IOException {
 		if (enable) {
 			Collection<String> conf = new ArrayList<>();
 			conf.add("UseBridges 1");
 			File obfs4File = getObfs4ExecutableFile();
-			if (bridgeTypes.contains(MEEK)) {
+			if (needsMeek) {
 				conf.add("ClientTransportPlugin meek_lite exec " +
 						obfs4File.getAbsolutePath());
-			}
-			if (bridgeTypes.contains(DEFAULT_OBFS4) ||
-					bridgeTypes.contains(NON_DEFAULT_OBFS4)) {
+			} else {
 				conf.add("ClientTransportPlugin obfs4 exec " +
 						obfs4File.getAbsolutePath());
 			}
-			for (BridgeType bridgeType : bridgeTypes) {
-				conf.addAll(circumventionProvider.getBridges(bridgeType));
-			}
+			conf.addAll(circumventionProvider.getBridges(needsMeek));
 			controlConnection.setConf(conf);
 		} else {
 			controlConnection.setConf("UseBridges", "0");
@@ -649,7 +644,7 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		} catch (IOException e) {
 			if (LOG.isLoggable(INFO)) {
 				LOG.info("Could not connect to v3 "
-						+ scrubOnion(onion3) + ": " + e);
+						+ scrubOnion(onion3) + ": " + e.toString());
 			}
 			tryToClose(s, LOG, WARNING);
 			return null;
@@ -685,8 +680,8 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		byte[] localSeed = alice ? aliceSeed : bobSeed;
 		byte[] remoteSeed = alice ? bobSeed : aliceSeed;
 		String blob = torRendezvousCrypto.getPrivateKeyBlob(localSeed);
-		String localOnion = torRendezvousCrypto.getOnion(localSeed);
-		String remoteOnion = torRendezvousCrypto.getOnion(remoteSeed);
+		String localOnion = torRendezvousCrypto.getOnionAddress(localSeed);
+		String remoteOnion = torRendezvousCrypto.getOnionAddress(remoteSeed);
 		TransportProperties remoteProperties = new TransportProperties();
 		remoteProperties.put(PROP_ONION_V3, remoteOnion);
 		try {
@@ -730,10 +725,9 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 
 	@Override
 	public void circuitStatus(String status, String id, String path) {
-		// In case of races between receiving CIRCUIT_ESTABLISHED and setting
-		// DisableNetwork, set our circuitBuilt flag if not already set
-		if (status.equals("BUILT") && !state.getAndSetCircuitBuilt(true)) {
-			LOG.info("Circuit built");
+		if (status.equals("BUILT") &&
+				state.getAndSetCircuitBuilt()) {
+			LOG.info("First circuit built");
 			backoff.reset();
 		}
 	}
@@ -744,16 +738,9 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 
 	@Override
 	public void orConnStatus(String status, String orName) {
-		if (LOG.isLoggable(INFO)) LOG.info("OR connection " + status);
-
-		//noinspection IfCanBeSwitch
-		if (status.equals("LAUNCHED")) state.onOrConnectionLaunched();
-		else if (status.equals("FAILED")) state.onOrConnectionFailed();
-		else if (status.equals("CONNECTED")) state.onOrConnectionConnected();
-		else if (status.equals("CLOSED")) state.onOrConnectionClosed();
-
-		if ((status.equals("FAILED") || status.equals("CLOSED")) &&
-				state.getNumOrConnections() == 0) {
+		if (LOG.isLoggable(INFO))
+			LOG.info("OR connection " + status + " " + orName);
+		if (status.equals("CLOSED") || status.equals("FAILED")) {
 			// Check whether we've lost connectivity
 			updateConnectionStatus(networkManager.getNetworkStatus(),
 					batteryManager.isCharging());
@@ -771,81 +758,24 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 	@Override
 	public void message(String severity, String msg) {
 		if (LOG.isLoggable(INFO)) LOG.info(severity + " " + msg);
-		if (msg.startsWith("Switching to guard context")) {
-			state.onSwitchingGuardContext();
+		if (severity.equals("NOTICE") && msg.startsWith("Bootstrapped 100%")) {
+			state.setBootstrapped();
+			backoff.reset();
 		}
 	}
 
 	@Override
 	public void unrecognized(String type, String msg) {
-		if (type.equals("STATUS_CLIENT")) {
-			handleClientStatus(removeSeverity(msg));
-		} else if (type.equals("STATUS_GENERAL")) {
-			handleGeneralStatus(removeSeverity(msg));
-		} else if (type.equals("HS_DESC") && msg.startsWith("UPLOADED")) {
-			String[] parts = msg.split(" ");
-			if (parts.length < 2) {
-				LOG.warning("Failed to parse HS_DESC UPLOADED event");
-			} else if (LOG.isLoggable(INFO)) {
-				LOG.info("V3 descriptor uploaded for " + scrubOnion(parts[1]));
-			}
-		}
-	}
-
-	private String removeSeverity(String msg) {
-		return msg.replaceFirst("[^ ]+ ", "");
-	}
-
-	private void handleClientStatus(String msg) {
-		if (msg.startsWith("BOOTSTRAP PROGRESS=100")) {
-			LOG.info("Bootstrapped");
-			state.setBootstrapped();
-			backoff.reset();
-		} else if (msg.startsWith("CIRCUIT_ESTABLISHED")) {
-			if (!state.getAndSetCircuitBuilt(true)) {
-				LOG.info("Circuit built");
-				backoff.reset();
-			}
-		} else if (msg.startsWith("CIRCUIT_NOT_ESTABLISHED")) {
-			if (state.getAndSetCircuitBuilt(false)) {
-				LOG.info("Circuit not built");
-				// TODO: Disable and re-enable network to prompt Tor to rebuild
-				//  its guard/bridge connections? This will also close any
-				//  established circuits, which might still be functioning
-			}
-		}
-	}
-
-	private void handleGeneralStatus(String msg) {
-		if (msg.startsWith("CLOCK_JUMPED")) {
-			Long time = parseLongArgument(msg, "TIME");
-			if (time != null && LOG.isLoggable(WARNING)) {
-				LOG.warning("Clock jumped " + time + " seconds");
-			}
-		} else if (msg.startsWith("CLOCK_SKEW")) {
-			Long skew = parseLongArgument(msg, "SKEW");
-			if (skew != null && LOG.isLoggable(WARNING)) {
-				LOG.warning("Clock is skewed by " + skew + " seconds");
-			}
-		}
-	}
-
-	@Nullable
-	private Long parseLongArgument(String msg, String argName) {
-		String[] args = msg.split(" ");
-		for (String arg : args) {
-			if (arg.startsWith(argName + "=")) {
-				try {
-					return Long.parseLong(arg.substring(argName.length() + 1));
-				} catch (NumberFormatException e) {
-					break;
+		if (type.equals("HS_DESC") && msg.startsWith("UPLOADED")) {
+			if (LOG.isLoggable(INFO)) {
+				String[] words = msg.split(" ");
+				if (words.length > 1 && ONION_V3.matcher(words[1]).matches()) {
+					LOG.info("V3 descriptor uploaded");
+				} else {
+					LOG.info("V2 descriptor uploaded");
 				}
 			}
 		}
-		if (LOG.isLoggable(WARNING)) {
-			LOG.warning("Failed to parse " + argName + " from '" + msg + "'");
-		}
-		return null;
 	}
 
 	@Override
@@ -914,9 +844,7 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 
 			int reasonsDisabled = 0;
 			boolean enableNetwork = false, enableBridges = false;
-			boolean enableConnectionPadding = false;
-			List<BridgeType> bridgeTypes =
-					circumventionProvider.getSuitableBridgeTypes(country);
+			boolean useMeek = false, enableConnectionPadding = false;
 
 			if (!online) {
 				LOG.info("Disabling network, device is offline");
@@ -945,10 +873,14 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 					enableNetwork = true;
 					if (network == PREF_TOR_NETWORK_WITH_BRIDGES ||
 							(automatic && bridgesWork)) {
-						if (ipv6Only) bridgeTypes = singletonList(MEEK);
-						enableBridges = true;
-						if (LOG.isLoggable(INFO)) {
-							LOG.info("Using bridge types " + bridgeTypes);
+						if (ipv6Only ||
+								circumventionProvider.needsMeek(country)) {
+							LOG.info("Using meek bridges");
+							enableBridges = true;
+							useMeek = true;
+						} else {
+							LOG.info("Using obfs4 bridges");
+							enableBridges = true;
 						}
 					} else {
 						LOG.info("Not using bridges");
@@ -966,7 +898,7 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 
 			try {
 				if (enableNetwork) {
-					enableBridges(enableBridges, bridgeTypes);
+					enableBridges(enableBridges, useMeek);
 					enableConnectionPadding(enableConnectionPadding);
 					useIpv6(ipv6Only);
 				}
@@ -1006,9 +938,6 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		@Nullable
 		private ServerSocket serverSocket = null;
 
-		@GuardedBy("this")
-		private int orConnectionsPending = 0, orConnectionsConnected = 0;
-
 		private synchronized void setStarted() {
 			started = true;
 			callback.pluginStateChanged(getState());
@@ -1032,11 +961,11 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 			callback.pluginStateChanged(getState());
 		}
 
-		private synchronized boolean getAndSetCircuitBuilt(boolean built) {
-			boolean old = circuitBuilt;
-			circuitBuilt = built;
-			if (built != old) callback.pluginStateChanged(getState());
-			return old;
+		private synchronized boolean getAndSetCircuitBuilt() {
+			boolean firstCircuit = !circuitBuilt;
+			circuitBuilt = true;
+			callback.pluginStateChanged(getState());
+			return firstCircuit;
 		}
 
 		private synchronized void enableNetwork(boolean enable) {
@@ -1077,58 +1006,5 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		private synchronized int getReasonsDisabled() {
 			return getState() == DISABLED ? reasonsDisabled : 0;
 		}
-
-		private synchronized void onOrConnectionLaunched() {
-			orConnectionsPending++;
-			logOrConnections();
-		}
-
-		private synchronized void onOrConnectionFailed() {
-			orConnectionsPending--;
-			if (orConnectionsPending < 0) {
-				LOG.warning("Count was zero before connection failed");
-				orConnectionsPending = 0;
-			}
-			logOrConnections();
-		}
-
-		private synchronized void onOrConnectionConnected() {
-			orConnectionsPending--;
-			if (orConnectionsPending < 0) {
-				LOG.warning("Count was zero before connection connected");
-				orConnectionsPending = 0;
-			}
-			orConnectionsConnected++;
-			logOrConnections();
-		}
-
-		private synchronized void onOrConnectionClosed() {
-			orConnectionsConnected--;
-			if (orConnectionsConnected < 0) {
-				LOG.warning("Count was zero before connection closed");
-				orConnectionsConnected = 0;
-			}
-			logOrConnections();
-		}
-
-		private synchronized void onSwitchingGuardContext() {
-			// Tor doesn't seem to report events for connections belonging to
-			// the old guard context, so we have to reset the counters
-			orConnectionsPending = 0;
-			orConnectionsConnected = 0;
-			logOrConnections();
-		}
-
-		private synchronized int getNumOrConnections() {
-			return orConnectionsPending + orConnectionsConnected;
-		}
-
-		@GuardedBy("this")
-		private void logOrConnections() {
-			if (LOG.isLoggable(INFO)) {
-				LOG.info("OR connections: " + orConnectionsPending
-						+ " pending, " + orConnectionsConnected + " connected");
-			}
-		}
 	}
 }

bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/TorRendezvousCrypto.java

@@ -4,7 +4,7 @@ interface TorRendezvousCrypto {
 
 	static final int SEED_BYTES = 32;
 
-	String getOnion(byte[] seed);
+	String getOnionAddress(byte[] seed);
 
 	String getPrivateKeyBlob(byte[] seed);
 }

bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/TorRendezvousCryptoImpl.java

@@ -21,9 +21,9 @@ class TorRendezvousCryptoImpl implements TorRendezvousCrypto {
 	}
 
 	@Override
-	public String getOnion(byte[] seed) {
+	public String getOnionAddress(byte[] seed) {
 		EdDSAPrivateKeySpec spec = new EdDSAPrivateKeySpec(seed, CURVE_SPEC);
-		return crypto.encodeOnion(spec.getA().toByteArray());
+		return crypto.encodeOnionAddress(spec.getA().toByteArray());
 	}
 
 	@Override

bramble-core/src/main/java/org/briarproject/bramble/system/AbstractSecureRandomProvider.java

@@ -7,13 +7,14 @@ import java.io.DataOutputStream;
 import java.io.IOException;
 import java.net.InetAddress;
 import java.net.NetworkInterface;
+import java.util.Enumeration;
 import java.util.Map.Entry;
 import java.util.Properties;
 
 import javax.annotation.concurrent.Immutable;
 
+import static java.net.NetworkInterface.getNetworkInterfaces;
 import static java.util.Collections.list;
-import static org.briarproject.bramble.util.NetworkUtils.getNetworkInterfaces;
 
 @Immutable
 @NotNullByDefault
@@ -24,11 +25,14 @@ abstract class AbstractSecureRandomProvider implements SecureRandomProvider {
 		out.writeLong(System.currentTimeMillis());
 		out.writeLong(System.nanoTime());
 		out.writeLong(Runtime.getRuntime().freeMemory());
-		for (NetworkInterface i : getNetworkInterfaces()) {
-			for (InetAddress a : list(i.getInetAddresses()))
-				out.write(a.getAddress());
-			byte[] hardware = i.getHardwareAddress();
-			if (hardware != null) out.write(hardware);
+		Enumeration<NetworkInterface> ifaces = getNetworkInterfaces();
+		if (ifaces != null) {
+			for (NetworkInterface i : list(ifaces)) {
+				for (InetAddress a : list(i.getInetAddresses()))
+					out.write(a.getAddress());
+				byte[] hardware = i.getHardwareAddress();
+				if (hardware != null) out.write(hardware);
+			}
 		}
 		for (Entry<String, String> e : System.getenv().entrySet()) {
 			out.writeUTF(e.getKey());

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

@@ -215,23 +215,6 @@ class KeyManagerImpl implements KeyManager, Service, EventListener {
 						m.getStreamContext(txn, tag)));
 	}
 
-	@Override
-	public StreamContext getStreamContextOnly(TransportId t, byte[] tag)
-			throws DbException {
-		return withManager(t, m ->
-				db.transactionWithNullableResult(false, txn ->
-						m.getStreamContextOnly(txn, tag)));
-	}
-
-	@Override
-	public void markTagAsRecognised(TransportId t, byte[] tag)
-			throws DbException {
-		withManager(t, m -> {
-			db.transaction(false, txn -> m.markTagAsRecognised(txn, tag));
-			return null;
-		});
-	}
-
 	@Override
 	public void eventOccurred(Event e) {
 		if (e instanceof ContactRemovedEvent) {

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

@@ -48,9 +48,4 @@ interface TransportKeyManager {
 	StreamContext getStreamContext(Transaction txn, byte[] tag)
 			throws DbException;
 
-	@Nullable
-	StreamContext getStreamContextOnly(Transaction txn, byte[] tag);
-
-	void markTagAsRecognised(Transaction txn, byte[] tag) throws DbException;
-
 }

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

@@ -393,82 +393,56 @@ class TransportKeyManagerImpl implements TransportKeyManager {
 			throws DbException {
 		lock.lock();
 		try {
-			StreamContext ctx = streamContextFromTag(tag);
-			if (ctx == null) return null;
-			markTagAsRecognised(txn, tag);
+			// Look up the incoming keys for the tag
+			TagContext tagCtx = inContexts.remove(new Bytes(tag));
+			if (tagCtx == null) return null;
+			MutableIncomingKeys inKeys = tagCtx.inKeys;
+			// Create a stream context
+			StreamContext ctx = new StreamContext(tagCtx.contactId,
+					tagCtx.pendingContactId, transportId,
+					inKeys.getTagKey(), inKeys.getHeaderKey(),
+					tagCtx.streamNumber, tagCtx.handshakeMode);
+			// Update the reordering window
+			ReorderingWindow window = inKeys.getWindow();
+			Change change = window.setSeen(tagCtx.streamNumber);
+			// Add tags for any stream numbers added to the window
+			for (long streamNumber : change.getAdded()) {
+				byte[] addTag = new byte[TAG_LENGTH];
+				transportCrypto.encodeTag(addTag, inKeys.getTagKey(),
+						PROTOCOL_VERSION, streamNumber);
+				TagContext tagCtx1 = new TagContext(tagCtx.keySetId,
+						tagCtx.contactId, tagCtx.pendingContactId, inKeys,
+						streamNumber, tagCtx.handshakeMode);
+				inContexts.put(new Bytes(addTag), tagCtx1);
+			}
+			// Remove tags for any stream numbers removed from the window
+			for (long streamNumber : change.getRemoved()) {
+				if (streamNumber == tagCtx.streamNumber) continue;
+				byte[] removeTag = new byte[TAG_LENGTH];
+				transportCrypto.encodeTag(removeTag, inKeys.getTagKey(),
+						PROTOCOL_VERSION, streamNumber);
+				inContexts.remove(new Bytes(removeTag));
+			}
+			// Write the window back to the DB
+			db.setReorderingWindow(txn, tagCtx.keySetId, transportId,
+					inKeys.getTimePeriod(), window.getBase(),
+					window.getBitmap());
+			// If the outgoing keys are inactive, activate them
+			MutableTransportKeySet ks = keys.get(tagCtx.keySetId);
+			MutableOutgoingKeys outKeys =
+					ks.getKeys().getCurrentOutgoingKeys();
+			if (!outKeys.isActive()) {
+				LOG.info("Activating outgoing keys");
+				outKeys.activate();
+				considerReplacingOutgoingKeys(ks);
+				db.setTransportKeysActive(txn, transportId, tagCtx.keySetId);
+			}
 			return ctx;
 		} finally {
 			lock.unlock();
 		}
 	}
 
-	@Override
-	public StreamContext getStreamContextOnly(Transaction txn, byte[] tag) {
-		lock.lock();
-		try {
-			return streamContextFromTag(tag);
-		} finally {
-			lock.unlock();
-		}
-	}
-
-	@GuardedBy("lock")
-	@Nullable
-	private StreamContext streamContextFromTag(byte[] tag) {
-		// Look up the incoming keys for the tag
-		TagContext tagCtx = inContexts.get(new Bytes(tag));
-		if (tagCtx == null) return null;
-		MutableIncomingKeys inKeys = tagCtx.inKeys;
-		// Create a stream context
-		return new StreamContext(tagCtx.contactId,
-				tagCtx.pendingContactId, transportId,
-				inKeys.getTagKey(), inKeys.getHeaderKey(),
-				tagCtx.streamNumber, tagCtx.handshakeMode);
-	}
-
-	@Override
-	public void markTagAsRecognised(Transaction txn, byte[] tag)
-			throws DbException {
-		TagContext tagCtx = inContexts.remove(new Bytes(tag));
-		if (tagCtx == null) return;
-		MutableIncomingKeys inKeys = tagCtx.inKeys;
-		// Update the reordering window
-		ReorderingWindow window = inKeys.getWindow();
-		Change change = window.setSeen(tagCtx.streamNumber);
-		// Add tags for any stream numbers added to the window
-		for (long streamNumber : change.getAdded()) {
-			byte[] addTag = new byte[TAG_LENGTH];
-			transportCrypto.encodeTag(addTag, inKeys.getTagKey(),
-					PROTOCOL_VERSION, streamNumber);
-			TagContext tagCtx1 = new TagContext(tagCtx.keySetId,
-					tagCtx.contactId, tagCtx.pendingContactId, inKeys,
-					streamNumber, tagCtx.handshakeMode);
-			inContexts.put(new Bytes(addTag), tagCtx1);
-		}
-		// Remove tags for any stream numbers removed from the window
-		for (long streamNumber : change.getRemoved()) {
-			if (streamNumber == tagCtx.streamNumber) continue;
-			byte[] removeTag = new byte[TAG_LENGTH];
-			transportCrypto.encodeTag(removeTag, inKeys.getTagKey(),
-					PROTOCOL_VERSION, streamNumber);
-			inContexts.remove(new Bytes(removeTag));
-		}
-		// Write the window back to the DB
-		db.setReorderingWindow(txn, tagCtx.keySetId, transportId,
-				inKeys.getTimePeriod(), window.getBase(),
-				window.getBitmap());
-		// If the outgoing keys are inactive, activate them
-		MutableTransportKeySet ks = keys.get(tagCtx.keySetId);
-		MutableOutgoingKeys outKeys =
-				ks.getKeys().getCurrentOutgoingKeys();
-		if (!outKeys.isActive()) {
-			LOG.info("Activating outgoing keys");
-			outKeys.activate();
-			considerReplacingOutgoingKeys(ks);
-			db.setTransportKeysActive(txn, transportId, tagCtx.keySetId);
-		}
-	}
-
 	@DatabaseExecutor
 	@Wakeful
 	private void updateKeys(Transaction txn) throws DbException {

bramble-core/src/main/resources/bridges

@@ -1,26 +1,10 @@
-d Bridge obfs4 192.95.36.142:443 CDF2E852BF539B82BD10E27E9115A31734E378C2 cert=qUVQ0srL1JI/vO6V6m/24anYXiJD3QP2HgzUKQtQ7GRqqUvs7P+tG43RtAqdhLOALP7DJQ iat-mode=1
-d Bridge obfs4 38.229.1.78:80 C8CBDB2464FC9804A69531437BCF2BE31FDD2EE4 cert=Hmyfd2ev46gGY7NoVxA9ngrPF2zCZtzskRTzoWXbxNkzeVnGFPWmrTtILRyqCTjHR+s9dg iat-mode=1
-d Bridge obfs4 38.229.33.83:80 0BAC39417268B96B9F514E7F63FA6FBA1A788955 cert=VwEFpk9F/UN9JED7XpG1XOjm/O8ZCXK80oPecgWnNDZDv5pdkhq1OpbAH0wNqOT6H6BmRQ iat-mode=1
-d Bridge obfs4 37.218.245.14:38224 D9A82D2F9C2F65A18407B1D2B764F130847F8B5D cert=bjRaMrr1BRiAW8IE9U5z27fQaYgOhX1UCmOpg2pFpoMvo6ZgQMzLsaTzzQNTlm7hNcb+Sg iat-mode=0
-d Bridge obfs4 85.31.186.98:443 011F2599C0E9B27EE74B353155E244813763C3E5 cert=ayq0XzCwhpdysn5o0EyDUbmSOx3X/oTEbzDMvczHOdBJKlvIdHHLJGkZARtT4dcBFArPPg iat-mode=0
-d Bridge obfs4 85.31.186.26:443 91A6354697E6B02A386312F68D82CF86824D3606 cert=PBwr+S8JTVZo6MPdHnkTwXJPILWADLqfMGoVvhZClMq/Urndyd42BwX9YFJHZnBB3H0XCw iat-mode=0
-d Bridge obfs4 193.11.166.194:27015 2D82C2E354D531A68469ADF7F878FA6060C6BACA cert=4TLQPJrTSaDffMK7Nbao6LC7G9OW/NHkUwIdjLSS3KYf0Nv4/nQiiI8dY2TcsQx01NniOg iat-mode=0
-d Bridge obfs4 193.11.166.194:27020 86AC7B8D430DAC4117E9F42C9EAED18133863AAF cert=0LDeJH4JzMDtkJJrFphJCiPqKx7loozKN7VNfuukMGfHO0Z8OGdzHVkhVAOfo1mUdv9cMg iat-mode=0
-d Bridge obfs4 193.11.166.194:27025 1AE2C08904527FEA90C4C4F8C1083EA59FBC6FAF cert=ItvYZzW5tn6v3G4UnQa6Qz04Npro6e81AP70YujmK/KXwDFPTs3aHXcHp4n8Vt6w/bv8cA iat-mode=0
-d Bridge obfs4 209.148.46.65:443 74FAD13168806246602538555B5521A0383A1875 cert=ssH+9rP8dG2NLDN2XuFw63hIO/9MNNinLmxQDpVa+7kTOa9/m+tGWT1SmSYpQ9uTBGa6Hw iat-mode=0
-d Bridge obfs4 51.222.13.177:80 5EDAC3B810E12B01F6FD8050D2FD3E277B289A08 cert=2uplIpLQ0q9+0qMFrK5pkaYRDOe460LL9WHBvatgkuRr/SL31wBOEupaMMJ6koRE6Ld0ew iat-mode=0
-n Bridge obfs4 46.226.107.197:10300 A38FD6BDFD902882F5F5B9B7CCC95602A20B0BC4 cert=t8tA9q2AeGlmp/dO6oW9bkY5RqqmvqjArCEM9wjJoDnk6XtnaejkF0JTA7VamdyOzcvuBg iat-mode=0
-n Bridge obfs4 185.181.11.86:443 A961609729E7FDF520B4E81F1F1B8FA1045285C3 cert=e5faG9Zk4Ni+e7z2YgGfevyKPQlMvkVGi4ublSsHYjaBovKeNXpOhbeFxzbZZoAzxAoGUQ iat-mode=0
-n Bridge obfs4 85.242.211.221:8042 A36A938DD7FDB8BACC846BA326EE0BA0D89A9252 cert=1AN6Pt1eFca3Y/WYD2TGAU3Al9cO4eouXE9SX63s66Z/ks3tVmgQ5GeXi1B5DOvx6Il7Zw iat-mode=0
-n Bridge obfs4 172.105.22.69:80 CBD17B33192A879433AB37C9E142541BD3459ABD cert=rk5YmpKypLsjlS4tjkYaZNBweYMa5tWQRhZ8Q2WRleNOgrhSceKo59BA8kp6kVfaMPXnSw iat-mode=0
-n Bridge obfs4 46.128.93.192:7346 5D28B8E1D117B8720D56A8513CF32509DCA1D84F cert=ED6tZP50eF0vno09F5gFvoWTMdcWFEX2FtwXOUYRevjzKg30/y701f61Vycnh6HO9gkaMw iat-mode=0
-n Bridge obfs4 74.104.165.202:9002 EF432018A6AA5D970B2F84E39CD30A147030141C cert=PhppfUusY85dHGvWtGTybZ1fED4DtbHmALkNMIOIYrAz1B4xN7/2a5gyiZe1epju1BOHVg iat-mode=0
-n Bridge obfs4 70.34.242.31:443 7F026956402CDFF4BCBA8E11EE9C50E3FE0A2B72 cert=hP/KU7JATSfWH3HwS5Er/YLT0J+bRO3+s2fWx2yirrgf37EyrWvm/BQshoNje8WfUm6CBw iat-mode=0
-n Bridge obfs4 192.3.163.88:57145 DEB62DE9643E5956CA4FA78035B48C9BBABE7F29 cert=RMz2z9uVVrioUhx0A8xUmiftRe2RpcXiqIuDfisdIomcHDf82nzfn83X/ixGUiA4rLCAdw iat-mode=0
-n Bridge obfs4 93.95.226.151:41185 460B0CFFC0CF1D965F3DE064E08BA1915E7C916A cert=inluPzp5Jp5OzZar1eQb4dcQ/YlAj/v0kHAUCoCr3rmLt03+pVuVTjoH4mRy4+acXpn+Gw iat-mode=0
-n Bridge obfs4 120.29.217.52:5223 40FE3DB9800272F9CDC76422F8ED7883280EE96D cert=/71PS4l8c/XJ4DIItlH9xMqNvPFg2RUTrHvPlQWh48u5et8h/yyyjCcYphUadDsfBWpaGQ iat-mode=0
-v Bridge 5.45.96.40:9001 8723B591712AAA03FB92000370BD356AB4997FA7
-v Bridge 135.181.113.164:54444 74AF4CCA614C454B7D3E81FF8BACD78CEBC7D7DE
-v Bridge 152.44.197.85:10507 FF07DF6B4720DA4C50F1A025662D50916D6223F6
-v Bridge 209.216.78.21:443 C870D381E7264CDB83BAEEBF074804808CCCDB8D
-m Bridge meek_lite 192.0.2.2:2 97700DFE9F483596DDA6264C4D7DF7641E1E39CE url=https://meek.azureedge.net/ front=ajax.aspnetcdn.com
+Bridge obfs4 37.218.245.14:38224 D9A82D2F9C2F65A18407B1D2B764F130847F8B5D cert=bjRaMrr1BRiAW8IE9U5z27fQaYgOhX1UCmOpg2pFpoMvo6ZgQMzLsaTzzQNTlm7hNcb+Sg iat-mode=0
+Bridge obfs4 85.31.186.26:443 91A6354697E6B02A386312F68D82CF86824D3606 cert=PBwr+S8JTVZo6MPdHnkTwXJPILWADLqfMGoVvhZClMq/Urndyd42BwX9YFJHZnBB3H0XCw iat-mode=0
+Bridge obfs4 193.11.166.194:27015 2D82C2E354D531A68469ADF7F878FA6060C6BACA cert=4TLQPJrTSaDffMK7Nbao6LC7G9OW/NHkUwIdjLSS3KYf0Nv4/nQiiI8dY2TcsQx01NniOg iat-mode=0
+Bridge obfs4 193.11.166.194:27020 86AC7B8D430DAC4117E9F42C9EAED18133863AAF cert=0LDeJH4JzMDtkJJrFphJCiPqKx7loozKN7VNfuukMGfHO0Z8OGdzHVkhVAOfo1mUdv9cMg iat-mode=0
+Bridge obfs4 193.11.166.194:27025 1AE2C08904527FEA90C4C4F8C1083EA59FBC6FAF cert=ItvYZzW5tn6v3G4UnQa6Qz04Npro6e81AP70YujmK/KXwDFPTs3aHXcHp4n8Vt6w/bv8cA iat-mode=0
+Bridge obfs4 209.148.46.65:443 74FAD13168806246602538555B5521A0383A1875 cert=ssH+9rP8dG2NLDN2XuFw63hIO/9MNNinLmxQDpVa+7kTOa9/m+tGWT1SmSYpQ9uTBGa6Hw iat-mode=0
+Bridge obfs4 45.145.95.6:27015 C5B7CD6946FF10C5B3E89691A7D3F2C122D2117C cert=TD7PbUO0/0k6xYHMPW3vJxICfkMZNdkRrb63Zhl5j9dW3iRGiCx0A7mPhe5T2EDzQ35+Zw iat-mode=0
+Bridge obfs4 51.222.13.177:80 5EDAC3B810E12B01F6FD8050D2FD3E277B289A08 cert=2uplIpLQ0q9+0qMFrK5pkaYRDOe460LL9WHBvatgkuRr/SL31wBOEupaMMJ6koRE6Ld0ew iat-mode=0
+Bridge obfs4 78.46.188.239:37356 5A2D2F4158D0453E00C7C176978D3F41D69C45DB cert=3c0SwxpOisbohNxEc4tb875RVW8eOu1opRTVXJhafaKA/PNNtI7ElQIVOVZg1AdL5bxGCw iat-mode=0
+Bridge meek_lite 192.0.2.2:2 97700DFE9F483596DDA6264C4D7DF7641E1E39CE url=https://meek.azureedge.net/ front=ajax.aspnetcdn.com

bramble-core/src/test/bash/wait-for-mailbox.sh

@@ -1,21 +0,0 @@
-#!/bin/bash
-set -e
-
-URL="http://127.0.0.1:8000/status"
-attempt_counter=0
-max_attempts=200 # 10min - CI for mailbox currently takes ~5min
-
-echo "Waiting for mailbox to come online at $URL"
-
-until [[ "$(curl -s -o /dev/null -w '%{http_code}' $URL)" == "401" ]]; do
-  if [ ${attempt_counter} -eq ${max_attempts} ]; then
-    echo "Timed out waiting for mailbox"
-    exit 1
-  fi
-
-  printf '.'
-  attempt_counter=$((attempt_counter + 1))
-  sleep 3
-done
-
-echo "Mailbox started"

bramble-core/src/test/java/org/briarproject/bramble/client/BdfMessageValidatorTest.java

@@ -13,7 +13,7 @@ import org.briarproject.bramble.api.sync.Message;
 import org.briarproject.bramble.api.sync.MessageContext;
 import org.briarproject.bramble.test.ValidatorTestCase;
 import org.jmock.Expectations;
-import org.jmock.imposters.ByteBuddyClassImposteriser;
+import org.jmock.lib.legacy.ClassImposteriser;
 import org.junit.Test;
 
 import static org.briarproject.bramble.api.transport.TransportConstants.MAX_CLOCK_DIFFERENCE;
@@ -38,7 +38,7 @@ public class BdfMessageValidatorTest extends ValidatorTestCase {
 	private final Metadata meta = new Metadata();
 
 	public BdfMessageValidatorTest() {
-		context.setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
+		context.setImposteriser(ClassImposteriser.INSTANCE);
 	}
 
 	@Test(expected = InvalidMessageException.class)

bramble-core/src/test/java/org/briarproject/bramble/client/ClientHelperImplTest.java

@@ -1,7 +1,6 @@
 package org.briarproject.bramble.client;
 
 import org.briarproject.bramble.api.FormatException;
-import org.briarproject.bramble.api.UniqueId;
 import org.briarproject.bramble.api.client.ClientHelper;
 import org.briarproject.bramble.api.crypto.CryptoComponent;
 import org.briarproject.bramble.api.crypto.KeyParser;
@@ -21,15 +20,13 @@ import org.briarproject.bramble.api.db.Metadata;
 import org.briarproject.bramble.api.db.Transaction;
 import org.briarproject.bramble.api.identity.Author;
 import org.briarproject.bramble.api.identity.AuthorFactory;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
-import org.briarproject.bramble.api.mailbox.MailboxFolderId;
-import org.briarproject.bramble.api.mailbox.MailboxPropertiesUpdate;
 import org.briarproject.bramble.api.sync.GroupId;
 import org.briarproject.bramble.api.sync.Message;
 import org.briarproject.bramble.api.sync.MessageFactory;
 import org.briarproject.bramble.api.sync.MessageId;
 import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.briarproject.bramble.test.DbExpectations;
+import org.briarproject.bramble.util.StringUtils;
 import org.jmock.Expectations;
 import org.junit.Test;
 
@@ -44,22 +41,15 @@ import java.util.Random;
 import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_AUTHOR_NAME_LENGTH;
 import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_PUBLIC_KEY_LENGTH;
 import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_SIGNATURE_LENGTH;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_AUTHTOKEN;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_INBOXID;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_ONION;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_OUTBOXID;
 import static org.briarproject.bramble.test.TestUtils.getAuthor;
 import static org.briarproject.bramble.test.TestUtils.getMessage;
 import static org.briarproject.bramble.test.TestUtils.getRandomBytes;
 import static org.briarproject.bramble.test.TestUtils.getRandomId;
 import static org.briarproject.bramble.test.TestUtils.getSignaturePrivateKey;
 import static org.briarproject.bramble.test.TestUtils.getSignaturePublicKey;
-import static org.briarproject.bramble.test.TestUtils.mailboxPropertiesUpdateEqual;
 import static org.briarproject.bramble.util.StringUtils.getRandomString;
 import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
 public class ClientHelperImplTest extends BrambleMockTestCase {
@@ -88,35 +78,13 @@ public class ClientHelperImplTest extends BrambleMockTestCase {
 	private final long timestamp = message.getTimestamp();
 	private final Metadata metadata = new Metadata();
 	private final BdfList list = BdfList.of("Sign this!", getRandomBytes(42));
-	private final String label = getRandomString(5);
+	private final String label = StringUtils.getRandomString(5);
 	private final Author author = getAuthor();
 
 	private final ClientHelper clientHelper = new ClientHelperImpl(db,
 			messageFactory, bdfReaderFactory, bdfWriterFactory, metadataParser,
 			metadataEncoder, cryptoComponent, authorFactory);
 
-	private final MailboxPropertiesUpdate validMailboxPropsUpdate;
-
-	public ClientHelperImplTest() {
-		validMailboxPropsUpdate = new MailboxPropertiesUpdate(
-				"pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd",
-				new MailboxAuthToken(getRandomId()),
-				new MailboxFolderId(getRandomId()),
-				new MailboxFolderId(getRandomId()));
-	}
-
-	private BdfDictionary getValidMailboxPropsUpdateDict() {
-		BdfDictionary dict = new BdfDictionary();
-		dict.put(PROP_KEY_ONION, validMailboxPropsUpdate.getOnion());
-		dict.put(PROP_KEY_AUTHTOKEN, validMailboxPropsUpdate.getAuthToken()
-				.getBytes());
-		dict.put(PROP_KEY_INBOXID, validMailboxPropsUpdate.getInboxId()
-				.getBytes());
-		dict.put(PROP_KEY_OUTBOXID, validMailboxPropsUpdate.getOutboxId()
-				.getBytes());
-		return dict;
-	}
-
 	@Test
 	public void testAddLocalMessage() throws Exception {
 		boolean shared = new Random().nextBoolean();
@@ -545,95 +513,4 @@ public class ClientHelperImplTest extends BrambleMockTestCase {
 			will(returnValue(eof));
 		}});
 	}
-
-	@Test
-	public void testParseEmptyMailboxPropsUpdate() throws Exception {
-		BdfDictionary emptyPropsDict = new BdfDictionary();
-		MailboxPropertiesUpdate parsedProps = clientHelper
-				.parseAndValidateMailboxPropertiesUpdate(emptyPropsDict);
-		assertNull(parsedProps);
-	}
-
-	@Test
-	public void testParseValidMailboxPropsUpdate() throws Exception {
-		MailboxPropertiesUpdate parsedProps = clientHelper
-				.parseAndValidateMailboxPropertiesUpdate(
-						getValidMailboxPropsUpdateDict());
-		assertTrue(mailboxPropertiesUpdateEqual(validMailboxPropsUpdate,
-				parsedProps));
-	}
-
-	@Test(expected = FormatException.class)
-	public void testRejectsMailboxPropsUpdateOnionNotDecodable()
-			throws Exception {
-		BdfDictionary propsDict = getValidMailboxPropsUpdateDict();
-		String badOnion = "!" + propsDict.getString(PROP_KEY_ONION)
-				.substring(1);
-		propsDict.put(PROP_KEY_ONION, badOnion);
-		clientHelper.parseAndValidateMailboxPropertiesUpdate(propsDict);
-	}
-
-	@Test(expected = FormatException.class)
-	public void testRejectsMailboxPropsUpdateOnionWrongLength()
-			throws Exception {
-		BdfDictionary propsDict = getValidMailboxPropsUpdateDict();
-		String tooLongOnion = propsDict.getString(PROP_KEY_ONION) + "!";
-		propsDict.put(PROP_KEY_ONION, tooLongOnion);
-		clientHelper.parseAndValidateMailboxPropertiesUpdate(propsDict);
-	}
-
-	@Test(expected = FormatException.class)
-	public void testRejectsMailboxPropsUpdateInboxIdWrongLength()
-			throws Exception {
-		BdfDictionary propsDict = getValidMailboxPropsUpdateDict();
-		propsDict.put(PROP_KEY_INBOXID, getRandomBytes(UniqueId.LENGTH + 1));
-		clientHelper.parseAndValidateMailboxPropertiesUpdate(propsDict);
-	}
-
-	@Test(expected = FormatException.class)
-	public void testRejectsMailboxPropsUpdateOutboxIdWrongLength()
-			throws Exception {
-		BdfDictionary propsDict = getValidMailboxPropsUpdateDict();
-		propsDict.put(PROP_KEY_OUTBOXID, getRandomBytes(UniqueId.LENGTH + 1));
-		clientHelper.parseAndValidateMailboxPropertiesUpdate(propsDict);
-	}
-
-	@Test(expected = FormatException.class)
-	public void testRejectsMailboxPropsUpdateAuthTokenWrongLength()
-			throws Exception {
-		BdfDictionary propsDict = getValidMailboxPropsUpdateDict();
-		propsDict.put(PROP_KEY_AUTHTOKEN, getRandomBytes(UniqueId.LENGTH + 1));
-		clientHelper.parseAndValidateMailboxPropertiesUpdate(propsDict);
-	}
-
-	@Test(expected = FormatException.class)
-	public void testRejectsMailboxPropsUpdateMissingOnion() throws Exception {
-		BdfDictionary propsDict = getValidMailboxPropsUpdateDict();
-		propsDict.remove(PROP_KEY_ONION);
-		clientHelper.parseAndValidateMailboxPropertiesUpdate(propsDict);
-	}
-
-	@Test(expected = FormatException.class)
-	public void testRejectsMailboxPropsUpdateMissingAuthToken()
-			throws Exception {
-		BdfDictionary propsDict = getValidMailboxPropsUpdateDict();
-		propsDict.remove(PROP_KEY_AUTHTOKEN);
-		clientHelper.parseAndValidateMailboxPropertiesUpdate(propsDict);
-	}
-
-	@Test(expected = FormatException.class)
-	public void testRejectsMailboxPropsUpdateMissingInboxId() throws Exception {
-		BdfDictionary propsDict = getValidMailboxPropsUpdateDict();
-		propsDict.remove(PROP_KEY_INBOXID);
-		clientHelper.parseAndValidateMailboxPropertiesUpdate(propsDict);
-	}
-
-	@Test(expected = FormatException.class)
-	public void testRejectsMailboxPropsUpdateMissingOutboxId()
-			throws Exception {
-		BdfDictionary propsDict = getValidMailboxPropsUpdateDict();
-		propsDict.remove(PROP_KEY_OUTBOXID);
-		clientHelper.parseAndValidateMailboxPropertiesUpdate(propsDict);
-	}
-
 }

bramble-core/src/test/java/org/briarproject/bramble/db/DatabaseComponentImplTest.java

@@ -922,11 +922,11 @@ public class DatabaseComponentImplTest extends BrambleMockTestCase {
 			will(returnValue(ids));
 			oneOf(database).getMessage(txn, messageId);
 			will(returnValue(message));
-			oneOf(database).updateRetransmissionData(txn, contactId, messageId,
+			oneOf(database).updateExpiryTimeAndEta(txn, contactId, messageId,
 					maxLatency);
 			oneOf(database).getMessage(txn, messageId1);
 			will(returnValue(message1));
-			oneOf(database).updateRetransmissionData(txn, contactId, messageId1,
+			oneOf(database).updateExpiryTimeAndEta(txn, contactId, messageId1,
 					maxLatency);
 			oneOf(database).lowerRequestedFlag(txn, contactId, ids);
 			oneOf(database).commitTransaction(txn);
@@ -951,9 +951,9 @@ public class DatabaseComponentImplTest extends BrambleMockTestCase {
 			will(returnValue(true));
 			oneOf(database).getMessagesToOffer(txn, contactId, 123, maxLatency);
 			will(returnValue(ids));
-			oneOf(database).updateRetransmissionData(txn, contactId, messageId,
+			oneOf(database).updateExpiryTimeAndEta(txn, contactId, messageId,
 					maxLatency);
-			oneOf(database).updateRetransmissionData(txn, contactId, messageId1,
+			oneOf(database).updateExpiryTimeAndEta(txn, contactId, messageId1,
 					maxLatency);
 			oneOf(database).commitTransaction(txn);
 		}});
@@ -1005,12 +1005,12 @@ public class DatabaseComponentImplTest extends BrambleMockTestCase {
 			will(returnValue(ids));
 			oneOf(database).getMessage(txn, messageId);
 			will(returnValue(message));
-			oneOf(database).updateRetransmissionData(txn, contactId,
-					messageId, maxLatency);
+			oneOf(database).updateExpiryTimeAndEta(txn, contactId, messageId,
+					maxLatency);
 			oneOf(database).getMessage(txn, messageId1);
 			will(returnValue(message1));
-			oneOf(database).updateRetransmissionData(txn, contactId,
-					messageId1, maxLatency);
+			oneOf(database).updateExpiryTimeAndEta(txn, contactId, messageId1,
+					maxLatency);
 			oneOf(database).lowerRequestedFlag(txn, contactId, ids);
 			oneOf(database).commitTransaction(txn);
 			oneOf(eventBus).broadcast(with(any(MessagesSentEvent.class)));

bramble-core/src/test/java/org/briarproject/bramble/db/JdbcDatabaseTest.java

@@ -72,6 +72,9 @@ import static org.briarproject.bramble.api.sync.validation.MessageState.DELIVERE
 import static org.briarproject.bramble.api.sync.validation.MessageState.INVALID;
 import static org.briarproject.bramble.api.sync.validation.MessageState.PENDING;
 import static org.briarproject.bramble.api.sync.validation.MessageState.UNKNOWN;
+import static org.briarproject.bramble.db.DatabaseConstants.DB_SETTINGS_NAMESPACE;
+import static org.briarproject.bramble.db.DatabaseConstants.LAST_COMPACTED_KEY;
+import static org.briarproject.bramble.db.DatabaseConstants.MAX_COMPACTION_INTERVAL_MS;
 import static org.briarproject.bramble.test.TestUtils.deleteTestDirectory;
 import static org.briarproject.bramble.test.TestUtils.getAgreementPrivateKey;
 import static org.briarproject.bramble.test.TestUtils.getAgreementPublicKey;
@@ -441,7 +444,7 @@ public abstract class JdbcDatabaseTest extends BrambleTestCase {
 		assertOneMessageToSendEagerly(db, txn);
 
 		// Mark the message as sent
-		db.updateRetransmissionData(txn, contactId, messageId, MAX_LATENCY);
+		db.updateExpiryTimeAndEta(txn, contactId, messageId, MAX_LATENCY);
 
 		// The message should no longer be sendable via lazy retransmission,
 		// but it should still be sendable via eager retransmission
@@ -1808,8 +1811,7 @@ public abstract class JdbcDatabaseTest extends BrambleTestCase {
 		assertFalse(status.isSeen());
 
 		// Pretend the message was sent to the contact
-		db.updateRetransmissionData(txn, contactId, messageId,
-				Integer.MAX_VALUE);
+		db.updateExpiryTimeAndEta(txn, contactId, messageId, Integer.MAX_VALUE);
 
 		// The message should be sent but not seen
 		status = db.getMessageStatus(txn, contactId, messageId);
@@ -2050,12 +2052,12 @@ public abstract class JdbcDatabaseTest extends BrambleTestCase {
 
 		// Update the message's expiry time as though we sent it - now the
 		// message should be sendable after one round-trip
-		db.updateRetransmissionData(txn, contactId, messageId, 1000);
+		db.updateExpiryTimeAndEta(txn, contactId, messageId, 1000);
 		assertEquals(now + 2000, db.getNextSendTime(txn, contactId));
 
 		// Update the message's expiry time again - now it should be sendable
 		// after two round-trips
-		db.updateRetransmissionData(txn, contactId, messageId, 1000);
+		db.updateExpiryTimeAndEta(txn, contactId, messageId, 1000);
 		assertEquals(now + 4000, db.getNextSendTime(txn, contactId));
 
 		// Delete the message - there should be no messages to send
@@ -2122,7 +2124,7 @@ public abstract class JdbcDatabaseTest extends BrambleTestCase {
 
 		// Time: now
 		// Mark the message as sent
-		db.updateRetransmissionData(txn, contactId, messageId, MAX_LATENCY);
+		db.updateExpiryTimeAndEta(txn, contactId, messageId, MAX_LATENCY);
 
 		// The message should expire after 2 * MAX_LATENCY
 		assertEquals(now + MAX_LATENCY * 2, db.getNextSendTime(txn, contactId));
@@ -2159,29 +2161,36 @@ public abstract class JdbcDatabaseTest extends BrambleTestCase {
 		db.addGroupVisibility(txn, contactId, groupId, true);
 		db.addMessage(txn, message, DELIVERED, true, false, null);
 
+		// Time: now
 		// Retrieve the message from the database
 		Collection<MessageId> ids = db.getMessagesToSend(txn, contactId,
 				ONE_MEGABYTE, MAX_LATENCY);
 		assertEquals(singletonList(messageId), ids);
 
+		// Time: now
 		// Mark the message as sent
-		db.updateRetransmissionData(txn, contactId, messageId, MAX_LATENCY);
+		db.updateExpiryTimeAndEta(txn, contactId, messageId, MAX_LATENCY);
 
 		// The message should expire after 2 * MAX_LATENCY
 		assertEquals(now + MAX_LATENCY * 2, db.getNextSendTime(txn, contactId));
 
+		// Time: now
 		// The message should not be sendable via the same transport
 		ids = db.getMessagesToSend(txn, contactId, ONE_MEGABYTE, MAX_LATENCY);
 		assertTrue(ids.isEmpty());
 
-		// The message should be sendable via a transport with a lower latency
+		// Time: now
+		// The message should be sendable via a transport with a faster ETA
 		ids = db.getMessagesToSend(txn, contactId, ONE_MEGABYTE,
 				MAX_LATENCY - 1);
 		assertEquals(singletonList(messageId), ids);
 
-		// The message should not be sendable via a slower transport
+		// Time: now + 1
+		// The message should no longer be sendable via the faster transport,
+		// as the ETA is now equal
+		time.set(now + 1);
 		ids = db.getMessagesToSend(txn, contactId, ONE_MEGABYTE,
-				MAX_LATENCY + 1);
+				MAX_LATENCY - 1);
 		assertTrue(ids.isEmpty());
 
 		db.commitTransaction(txn);
@@ -2189,50 +2198,41 @@ public abstract class JdbcDatabaseTest extends BrambleTestCase {
 	}
 
 	@Test
-	public void testResetRetransmissionTimes() throws Exception {
+	public void testCompactionTime() throws Exception {
+		MessageFactory messageFactory = new TestMessageFactory();
 		long now = System.currentTimeMillis();
 		AtomicLong time = new AtomicLong(now);
-		Database<Connection> db =
-				open(false, new TestMessageFactory(), new SettableClock(time));
+		Clock clock = new SettableClock(time);
+
+		// Time: now
+		// The last compaction time should be initialised to the current time
+		Database<Connection> db = open(false, messageFactory, clock);
 		Connection txn = db.startTransaction();
+		Settings s = db.getSettings(txn, DB_SETTINGS_NAMESPACE);
+		assertEquals(now, s.getLong(LAST_COMPACTED_KEY, 0));
+		db.commitTransaction(txn);
+		db.close();
 
-		// Add a contact, a shared group and a shared message
-		db.addIdentity(txn, identity);
-		assertEquals(contactId,
-				db.addContact(txn, author, localAuthor.getId(), null, true));
-		db.addGroup(txn, group);
-		db.addGroupVisibility(txn, contactId, groupId, true);
-		db.addMessage(txn, message, DELIVERED, true, false, null);
-
-		// Time: now
-		// Retrieve the message from the database
-		Collection<MessageId> ids = db.getMessagesToSend(txn, contactId,
-				ONE_MEGABYTE, MAX_LATENCY);
-		assertEquals(singletonList(messageId), ids);
-
-		// Time: now
-		// Mark the message as sent
-		db.updateRetransmissionData(txn, contactId, messageId, MAX_LATENCY);
-
-		// The message should expire after 2 * MAX_LATENCY
-		assertEquals(now + MAX_LATENCY * 2, db.getNextSendTime(txn, contactId));
-
-		// Time: now + MAX_LATENCY * 2 - 1
-		// The message should not yet be sendable
-		time.set(now + MAX_LATENCY * 2 - 1);
-		ids = db.getMessagesToSend(txn, contactId, ONE_MEGABYTE, MAX_LATENCY);
-		assertTrue(ids.isEmpty());
-
-		// Reset the retransmission times
-		db.resetUnackedMessagesToSend(txn, contactId);
-
-		// The message should have infinitely short expiry
-		assertEquals(0, db.getNextSendTime(txn, contactId));
-
-		// The message should be sendable
-		ids = db.getMessagesToSend(txn, contactId, ONE_MEGABYTE, MAX_LATENCY);
-		assertFalse(ids.isEmpty());
+		// Time: now + MAX_COMPACTION_INTERVAL_MS
+		// The DB should not be compacted, so the last compaction time should
+		// not be updated
+		time.set(now + MAX_COMPACTION_INTERVAL_MS);
+		db = open(true, messageFactory, clock);
+		txn = db.startTransaction();
+		s = db.getSettings(txn, DB_SETTINGS_NAMESPACE);
+		assertEquals(now, s.getLong(LAST_COMPACTED_KEY, 0));
+		db.commitTransaction(txn);
+		db.close();
 
+		// Time: now + MAX_COMPACTION_INTERVAL_MS + 1
+		// The DB should be compacted, so the last compaction time should be
+		// updated
+		time.set(now + MAX_COMPACTION_INTERVAL_MS + 1);
+		db = open(true, messageFactory, clock);
+		txn = db.startTransaction();
+		s = db.getSettings(txn, DB_SETTINGS_NAMESPACE);
+		assertEquals(now + MAX_COMPACTION_INTERVAL_MS + 1,
+				s.getLong(LAST_COMPACTED_KEY, 0));
 		db.commitTransaction(txn);
 		db.close();
 	}

bramble-core/src/test/java/org/briarproject/bramble/keyagreement/KeyAgreementProtocolTest.java

@@ -11,9 +11,9 @@ import org.briarproject.bramble.api.keyagreement.PayloadEncoder;
 import org.briarproject.bramble.test.BrambleTestCase;
 import org.jmock.Expectations;
 import org.jmock.auto.Mock;
-import org.jmock.imposters.ByteBuddyClassImposteriser;
 import org.jmock.integration.junit4.JUnitRuleMockery;
 import org.jmock.lib.concurrent.Synchroniser;
+import org.jmock.lib.legacy.ClassImposteriser;
 import org.junit.Rule;
 import org.junit.Test;
 
@@ -35,7 +35,7 @@ public class KeyAgreementProtocolTest extends BrambleTestCase {
 	@Rule
 	public JUnitRuleMockery context = new JUnitRuleMockery() {{
 		// So we can mock concrete classes like KeyAgreementTransport
-		setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
+		setImposteriser(ClassImposteriser.INSTANCE);
 		setThreadingPolicy(new Synchroniser());
 	}};
 

bramble-core/src/test/java/org/briarproject/bramble/keyagreement/KeyAgreementTransportTest.java

@@ -14,7 +14,7 @@ import org.briarproject.bramble.api.record.RecordWriterFactory;
 import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.briarproject.bramble.test.CaptureArgumentAction;
 import org.jmock.Expectations;
-import org.jmock.imposters.ByteBuddyClassImposteriser;
+import org.jmock.lib.legacy.ClassImposteriser;
 import org.junit.Test;
 
 import java.io.InputStream;
@@ -58,7 +58,7 @@ public class KeyAgreementTransportTest extends BrambleMockTestCase {
 	private KeyAgreementTransport kat;
 
 	public KeyAgreementTransportTest() {
-		context.setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
+		context.setImposteriser(ClassImposteriser.INSTANCE);
 		inputStream = context.mock(InputStream.class);
 		outputStream = context.mock(OutputStream.class);
 	}

bramble-core/src/test/java/org/briarproject/bramble/mailbox/MailboxApiTest.java

@@ -1,802 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
-
-import org.briarproject.bramble.api.WeakSingletonProvider;
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
-import org.briarproject.bramble.api.mailbox.MailboxFileId;
-import org.briarproject.bramble.api.mailbox.MailboxFolderId;
-import org.briarproject.bramble.api.mailbox.MailboxId;
-import org.briarproject.bramble.api.mailbox.MailboxProperties;
-import org.briarproject.bramble.mailbox.MailboxApi.ApiException;
-import org.briarproject.bramble.mailbox.MailboxApi.MailboxContact;
-import org.briarproject.bramble.mailbox.MailboxApi.MailboxFile;
-import org.briarproject.bramble.mailbox.MailboxApi.TolerableFailureException;
-import org.briarproject.bramble.test.BrambleTestCase;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
-
-import java.io.File;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
-import javax.annotation.Nonnull;
-import javax.net.SocketFactory;
-
-import okhttp3.OkHttpClient;
-import okhttp3.mockwebserver.MockResponse;
-import okhttp3.mockwebserver.MockWebServer;
-import okhttp3.mockwebserver.RecordedRequest;
-import okio.Buffer;
-
-import static java.util.Collections.singletonList;
-import static java.util.concurrent.TimeUnit.MILLISECONDS;
-import static org.briarproject.bramble.test.TestUtils.getContactId;
-import static org.briarproject.bramble.test.TestUtils.getRandomBytes;
-import static org.briarproject.bramble.test.TestUtils.getRandomId;
-import static org.briarproject.bramble.test.TestUtils.readBytes;
-import static org.briarproject.bramble.test.TestUtils.writeBytes;
-import static org.briarproject.bramble.util.StringUtils.getRandomString;
-import static org.junit.Assert.assertArrayEquals;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertThrows;
-import static org.junit.Assert.assertTrue;
-
-public class MailboxApiTest extends BrambleTestCase {
-
-	@Rule
-	public TemporaryFolder folder = new TemporaryFolder();
-
-	private final OkHttpClient client = new OkHttpClient.Builder()
-			.socketFactory(SocketFactory.getDefault())
-			.connectTimeout(60_000, MILLISECONDS)
-			.build();
-	private final WeakSingletonProvider<OkHttpClient> httpClientProvider =
-			new WeakSingletonProvider<OkHttpClient>() {
-				@Override
-				@Nonnull
-				public OkHttpClient createInstance() {
-					return client;
-				}
-			};
-	private final MailboxApiImpl api = new MailboxApiImpl(httpClientProvider);
-
-	private final MailboxAuthToken token = new MailboxAuthToken(getRandomId());
-	private final MailboxAuthToken token2 = new MailboxAuthToken(getRandomId());
-	private final ContactId contactId = getContactId();
-	private final MailboxAuthToken contactToken =
-			new MailboxAuthToken(getRandomId());
-	private final MailboxFolderId contactInboxId =
-			new MailboxFolderId(getRandomId());
-	private final MailboxFolderId contactOutboxId =
-			new MailboxFolderId(getRandomId());
-	private final MailboxContact mailboxContact = new MailboxContact(
-			contactId, contactToken, contactInboxId, contactOutboxId);
-
-	@Test
-	public void testSetup() throws Exception {
-		String validResponse = "{\"token\":\"" + token2 + "\"}";
-		String invalidResponse = "{\"foo\":\"bar\"}";
-		String invalidTokenResponse = "{\"token\":{\"foo\":\"bar\"}}";
-		String invalidTokenResponse2 =
-				"{\"token\":\"" + getRandomString(64) + "\"}";
-
-		MockWebServer server = new MockWebServer();
-		server.enqueue(new MockResponse().setBody(validResponse));
-		server.enqueue(new MockResponse());
-		server.enqueue(new MockResponse().setBody(invalidResponse));
-		server.enqueue(new MockResponse().setResponseCode(401));
-		server.enqueue(new MockResponse().setResponseCode(500));
-		server.enqueue(new MockResponse().setBody(invalidTokenResponse));
-		server.enqueue(new MockResponse().setBody(invalidTokenResponse2));
-		server.start();
-		String baseUrl = getBaseUrl(server);
-		MailboxProperties properties =
-				new MailboxProperties(baseUrl, token, true);
-		MailboxProperties properties2 =
-				new MailboxProperties(baseUrl, token2, true);
-
-		// valid response with valid token
-		assertEquals(token2, api.setup(properties));
-		RecordedRequest request1 = server.takeRequest();
-		assertEquals("/setup", request1.getPath());
-		assertEquals("PUT", request1.getMethod());
-		assertToken(request1, token);
-
-		// empty body
-		assertThrows(ApiException.class, () -> api.setup(properties));
-		RecordedRequest request2 = server.takeRequest();
-		assertEquals("/setup", request2.getPath());
-		assertEquals("PUT", request2.getMethod());
-		assertToken(request2, token);
-
-		// invalid response
-		assertThrows(ApiException.class, () -> api.setup(properties));
-		RecordedRequest request3 = server.takeRequest();
-		assertEquals("/setup", request3.getPath());
-		assertEquals("PUT", request3.getMethod());
-		assertToken(request3, token);
-
-		// 401 response
-		assertThrows(ApiException.class, () -> api.setup(properties2));
-		RecordedRequest request4 = server.takeRequest();
-		assertEquals("/setup", request4.getPath());
-		assertEquals("PUT", request4.getMethod());
-		assertToken(request4, token2);
-
-		// 500 response
-		assertThrows(ApiException.class, () -> api.setup(properties));
-		RecordedRequest request5 = server.takeRequest();
-		assertEquals("/setup", request5.getPath());
-		assertEquals("PUT", request5.getMethod());
-		assertToken(request5, token);
-
-		// invalid json dict token response
-		assertThrows(ApiException.class, () -> api.setup(properties));
-		RecordedRequest request6 = server.takeRequest();
-		assertEquals("/setup", request6.getPath());
-		assertEquals("PUT", request6.getMethod());
-		assertToken(request6, token);
-
-		// invalid non-hex string token response
-		assertThrows(ApiException.class, () -> api.setup(properties));
-		RecordedRequest request7 = server.takeRequest();
-		assertEquals("/setup", request7.getPath());
-		assertEquals("PUT", request7.getMethod());
-		assertToken(request7, token);
-	}
-
-	@Test
-	public void testSetupOnlyForOwner() {
-		MailboxProperties properties =
-				new MailboxProperties("", token, false);
-		assertThrows(
-				IllegalArgumentException.class,
-				() -> api.setup(properties)
-		);
-	}
-
-	@Test
-	public void testStatus() throws Exception {
-		MockWebServer server = new MockWebServer();
-		server.enqueue(new MockResponse());
-		server.enqueue(new MockResponse().setResponseCode(401));
-		server.enqueue(new MockResponse().setResponseCode(500));
-		server.start();
-		String baseUrl = getBaseUrl(server);
-		MailboxProperties properties =
-				new MailboxProperties(baseUrl, token, true);
-		MailboxProperties properties2 =
-				new MailboxProperties(baseUrl, token2, true);
-
-		assertTrue(api.checkStatus(properties));
-		RecordedRequest request1 = server.takeRequest();
-		assertEquals("/status", request1.getPath());
-		assertToken(request1, token);
-
-		assertThrows(ApiException.class, () -> api.checkStatus(properties2));
-		RecordedRequest request2 = server.takeRequest();
-		assertEquals("/status", request2.getPath());
-		assertToken(request2, token2);
-
-		assertFalse(api.checkStatus(properties));
-		RecordedRequest request3 = server.takeRequest();
-		assertEquals("/status", request3.getPath());
-		assertToken(request3, token);
-	}
-
-	@Test
-	public void testStatusOnlyForOwner() {
-		MailboxProperties properties =
-				new MailboxProperties("", token, false);
-		assertThrows(
-				IllegalArgumentException.class,
-				() -> api.checkStatus(properties)
-		);
-	}
-
-	@Test
-	public void testWipe() throws Exception {
-		MockWebServer server = new MockWebServer();
-		server.enqueue(new MockResponse().setResponseCode(204));
-		server.enqueue(new MockResponse().setResponseCode(200));
-		server.enqueue(new MockResponse().setResponseCode(401));
-		server.enqueue(new MockResponse().setResponseCode(500));
-		server.start();
-		String baseUrl = getBaseUrl(server);
-		MailboxProperties properties =
-				new MailboxProperties(baseUrl, token, true);
-		MailboxProperties properties2 =
-				new MailboxProperties(baseUrl, token2, true);
-
-		api.wipeMailbox(properties);
-		RecordedRequest request1 = server.takeRequest();
-		assertEquals("/", request1.getPath());
-		assertEquals("DELETE", request1.getMethod());
-		assertToken(request1, token);
-
-		assertThrows(ApiException.class, () -> api.wipeMailbox(properties2));
-		RecordedRequest request2 = server.takeRequest();
-		assertEquals("/", request2.getPath());
-		assertEquals("DELETE", request2.getMethod());
-		assertToken(request2, token2);
-
-		assertThrows(ApiException.class, () -> api.wipeMailbox(properties));
-		RecordedRequest request3 = server.takeRequest();
-		assertEquals("/", request3.getPath());
-		assertEquals("DELETE", request3.getMethod());
-		assertToken(request3, token);
-
-		assertThrows(ApiException.class, () -> api.wipeMailbox(properties));
-		RecordedRequest request4 = server.takeRequest();
-		assertEquals("/", request4.getPath());
-		assertEquals("DELETE", request4.getMethod());
-		assertToken(request4, token);
-	}
-
-	@Test
-	public void testWipeOnlyForOwner() {
-		MailboxProperties properties =
-				new MailboxProperties("", token, false);
-		assertThrows(IllegalArgumentException.class, () ->
-				api.wipeMailbox(properties));
-	}
-
-	@Test
-	public void testAddContact() throws Exception {
-		MockWebServer server = new MockWebServer();
-		server.enqueue(new MockResponse());
-		server.enqueue(new MockResponse().setResponseCode(401));
-		server.enqueue(new MockResponse().setResponseCode(409));
-		server.start();
-		String baseUrl = getBaseUrl(server);
-		MailboxProperties properties =
-				new MailboxProperties(baseUrl, token, true);
-
-		// contact gets added as expected
-		api.addContact(properties, mailboxContact);
-		RecordedRequest request1 = server.takeRequest();
-		assertEquals("/contacts", request1.getPath());
-		assertToken(request1, token);
-		String expected = "{\"contactId\":" + contactId.getInt() +
-				",\"token\":\"" + contactToken +
-				"\",\"inboxId\":\"" + contactInboxId +
-				"\",\"outboxId\":\"" + contactOutboxId +
-				"\"}";
-		assertEquals(expected, request1.getBody().readUtf8());
-
-		// request is not successful
-		assertThrows(ApiException.class, () ->
-				api.addContact(properties, mailboxContact));
-		RecordedRequest request2 = server.takeRequest();
-		assertEquals("/contacts", request2.getPath());
-		assertToken(request2, token);
-
-		// contact already exists
-		assertThrows(TolerableFailureException.class, () ->
-				api.addContact(properties, mailboxContact));
-		RecordedRequest request3 = server.takeRequest();
-		assertEquals("/contacts", request3.getPath());
-		assertToken(request3, token);
-	}
-
-	@Test
-	public void testAddContactOnlyForOwner() {
-		MailboxProperties properties =
-				new MailboxProperties("", token, false);
-		assertThrows(IllegalArgumentException.class, () ->
-				api.addContact(properties, mailboxContact));
-	}
-
-	@Test
-	public void testDeleteContact() throws Exception {
-		MockWebServer server = new MockWebServer();
-		server.enqueue(new MockResponse());
-		server.enqueue(new MockResponse().setResponseCode(205));
-		server.enqueue(new MockResponse().setResponseCode(401));
-		server.enqueue(new MockResponse().setResponseCode(404));
-		server.start();
-		String baseUrl = getBaseUrl(server);
-		MailboxProperties properties =
-				new MailboxProperties(baseUrl, token, true);
-
-		// contact gets deleted as expected
-		api.deleteContact(properties, contactId);
-		RecordedRequest request1 = server.takeRequest();
-		assertEquals("DELETE", request1.getMethod());
-		assertEquals("/contacts/" + contactId.getInt(), request1.getPath());
-		assertToken(request1, token);
-
-		// request is not returning 200
-		assertThrows(ApiException.class, () ->
-				api.deleteContact(properties, contactId));
-		RecordedRequest request2 = server.takeRequest();
-		assertEquals("DELETE", request2.getMethod());
-		assertEquals("/contacts/" + contactId.getInt(), request2.getPath());
-		assertToken(request2, token);
-
-		// request is not authorized
-		assertThrows(ApiException.class, () ->
-				api.deleteContact(properties, contactId));
-		RecordedRequest request3 = server.takeRequest();
-		assertEquals("DELETE", request3.getMethod());
-		assertEquals("/contacts/" + contactId.getInt(), request3.getPath());
-		assertToken(request3, token);
-
-		// tolerable 404 not found error
-		assertThrows(TolerableFailureException.class,
-				() -> api.deleteContact(properties, contactId));
-		RecordedRequest request4 = server.takeRequest();
-		assertEquals("/contacts/" + contactId.getInt(), request4.getPath());
-		assertEquals("DELETE", request4.getMethod());
-		assertToken(request4, token);
-	}
-
-	@Test
-	public void testDeleteContactOnlyForOwner() {
-		MailboxProperties properties =
-				new MailboxProperties("", token, false);
-		assertThrows(IllegalArgumentException.class, () ->
-				api.deleteContact(properties, contactId));
-	}
-
-	@Test
-	public void testGetContacts() throws Exception {
-		ContactId contactId2 = getContactId();
-		String validResponse1 = "{\"contacts\": [" + contactId.getInt() + "] }";
-		String validResponse2 = "{\"contacts\": [" + contactId.getInt() + ", " +
-				contactId2.getInt() + "] }";
-		String invalidResponse1 = "{\"foo\":\"bar\"}";
-		String invalidResponse2 = "{\"contacts\":{\"foo\":\"bar\"}}";
-		String invalidResponse3 = "{\"contacts\": [1, 2, \"foo\"] }";
-
-		MockWebServer server = new MockWebServer();
-		server.enqueue(new MockResponse().setBody(validResponse1));
-		server.enqueue(new MockResponse().setBody(validResponse2));
-		server.enqueue(new MockResponse());
-		server.enqueue(new MockResponse().setBody(invalidResponse1));
-		server.enqueue(new MockResponse().setBody(invalidResponse2));
-		server.enqueue(new MockResponse().setBody(invalidResponse3));
-		server.enqueue(new MockResponse().setResponseCode(401));
-		server.enqueue(new MockResponse().setResponseCode(500));
-		server.start();
-		String baseUrl = getBaseUrl(server);
-		MailboxProperties properties =
-				new MailboxProperties(baseUrl, token, true);
-
-		// valid response with two contacts
-		assertEquals(singletonList(contactId), api.getContacts(properties));
-		RecordedRequest request1 = server.takeRequest();
-		assertEquals("/contacts", request1.getPath());
-		assertEquals("GET", request1.getMethod());
-		assertToken(request1, token);
-
-		// valid response with two contacts
-		List<ContactId> contacts = new ArrayList<>();
-		contacts.add(contactId);
-		contacts.add(contactId2);
-		assertEquals(contacts, api.getContacts(properties));
-		RecordedRequest request2 = server.takeRequest();
-		assertEquals("/contacts", request2.getPath());
-		assertEquals("GET", request2.getMethod());
-		assertToken(request2, token);
-
-		// empty body
-		assertThrows(ApiException.class, () -> api.getContacts(properties));
-		RecordedRequest request3 = server.takeRequest();
-		assertEquals("/contacts", request3.getPath());
-		assertEquals("GET", request3.getMethod());
-		assertToken(request3, token);
-
-		// invalid response: no contacts key
-		assertThrows(ApiException.class, () -> api.getContacts(properties));
-		RecordedRequest request4 = server.takeRequest();
-		assertEquals("/contacts", request4.getPath());
-		assertEquals("GET", request4.getMethod());
-		assertToken(request4, token);
-
-		// invalid response: no list in contacts
-		assertThrows(ApiException.class, () -> api.getContacts(properties));
-		RecordedRequest request5 = server.takeRequest();
-		assertEquals("/contacts", request5.getPath());
-		assertEquals("GET", request5.getMethod());
-		assertToken(request5, token);
-
-		// invalid response: list with non-numbers
-		assertThrows(ApiException.class, () -> api.getContacts(properties));
-		RecordedRequest request6 = server.takeRequest();
-		assertEquals("/contacts", request6.getPath());
-		assertEquals("GET", request6.getMethod());
-		assertToken(request6, token);
-
-		// 401 not authorized
-		assertThrows(ApiException.class, () -> api.getContacts(properties));
-		RecordedRequest request7 = server.takeRequest();
-		assertEquals("/contacts", request7.getPath());
-		assertEquals("GET", request7.getMethod());
-		assertToken(request7, token);
-
-		// 500 internal server error
-		assertThrows(ApiException.class, () -> api.getContacts(properties));
-		RecordedRequest request8 = server.takeRequest();
-		assertEquals("/contacts", request8.getPath());
-		assertEquals("GET", request8.getMethod());
-		assertToken(request8, token);
-	}
-
-	@Test
-	public void testGetContactsOnlyForOwner() {
-		MailboxProperties properties =
-				new MailboxProperties("", token, false);
-		assertThrows(
-				IllegalArgumentException.class,
-				() -> api.getContacts(properties)
-		);
-	}
-
-	@Test
-	public void testAddFile() throws Exception {
-		File file = folder.newFile();
-		byte[] bytes = getRandomBytes(1337);
-		writeBytes(file, bytes);
-
-		MockWebServer server = new MockWebServer();
-		server.enqueue(new MockResponse());
-		server.enqueue(new MockResponse().setResponseCode(401));
-		server.enqueue(new MockResponse().setResponseCode(500));
-		server.start();
-		String baseUrl = getBaseUrl(server);
-		MailboxProperties properties =
-				new MailboxProperties(baseUrl, token, true);
-
-		// file gets uploaded as expected
-		api.addFile(properties, contactInboxId, file);
-		RecordedRequest request1 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request1.getPath());
-		assertEquals("POST", request1.getMethod());
-		assertToken(request1, token);
-		assertArrayEquals(bytes, request1.getBody().readByteArray());
-
-		// request is not successful
-		assertThrows(ApiException.class, () ->
-				api.addFile(properties, contactInboxId, file));
-		RecordedRequest request2 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request2.getPath());
-		assertEquals("POST", request1.getMethod());
-		assertToken(request2, token);
-
-		// server error
-		assertThrows(ApiException.class, () ->
-				api.addFile(properties, contactInboxId, file));
-		RecordedRequest request3 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request3.getPath());
-		assertEquals("POST", request1.getMethod());
-		assertToken(request3, token);
-	}
-
-	@Test
-	public void testGetFiles() throws Exception {
-		MailboxFile mailboxFile1 =
-				new MailboxFile(new MailboxFileId(getRandomId()), 1337);
-		MailboxFile mailboxFile2 =
-				new MailboxFile(new MailboxFileId(getRandomId()),
-						System.currentTimeMillis());
-		String fileResponse1 =
-				new ObjectMapper().writeValueAsString(mailboxFile1);
-		String fileResponse2 =
-				new ObjectMapper().writeValueAsString(mailboxFile2);
-		String validResponse1 = "{\"files\": [" + fileResponse1 + "] }";
-		String validResponse2 = "{\"files\": [" + fileResponse1 + ", " +
-				fileResponse2 + "] }";
-		String invalidResponse1 = "{\"files\":\"bar\"}";
-		String invalidResponse2 = "{\"files\":{\"foo\":\"bar\"}}";
-		String invalidResponse3 = "{\"files\": [" + fileResponse1 + ", 1] }";
-		String invalidResponse4 = "{\"contacts\": [ 1, 2 ] }";
-
-		MockWebServer server = new MockWebServer();
-		server.enqueue(new MockResponse().setBody(validResponse1));
-		server.enqueue(new MockResponse().setBody(validResponse2));
-		server.enqueue(new MockResponse());
-		server.enqueue(new MockResponse().setBody(invalidResponse1));
-		server.enqueue(new MockResponse().setBody(invalidResponse2));
-		server.enqueue(new MockResponse().setBody(invalidResponse3));
-		server.enqueue(new MockResponse().setBody(invalidResponse4));
-		server.enqueue(new MockResponse().setResponseCode(401));
-		server.enqueue(new MockResponse().setResponseCode(500));
-		server.start();
-		String baseUrl = getBaseUrl(server);
-		MailboxProperties properties =
-				new MailboxProperties(baseUrl, token, true);
-
-		// valid response with one file
-		List<MailboxFile> received1 = api.getFiles(properties, contactInboxId);
-		assertEquals(1, received1.size());
-		assertEquals(mailboxFile1.name, received1.get(0).name);
-		assertEquals(mailboxFile1.time, received1.get(0).time);
-		RecordedRequest request1 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request1.getPath());
-		assertEquals("GET", request1.getMethod());
-		assertToken(request1, token);
-
-		// valid response with two files
-		List<MailboxFile> received2 = api.getFiles(properties, contactInboxId);
-		assertEquals(2, received2.size());
-		assertEquals(mailboxFile1.name, received2.get(0).name);
-		assertEquals(mailboxFile1.time, received2.get(0).time);
-		assertEquals(mailboxFile2.name, received2.get(1).name);
-		assertEquals(mailboxFile2.time, received2.get(1).time);
-		RecordedRequest request2 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request1.getPath());
-		assertEquals("GET", request2.getMethod());
-		assertToken(request2, token);
-
-		// empty body
-		assertThrows(ApiException.class, () ->
-				api.getFiles(properties, contactInboxId));
-		RecordedRequest request3 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request3.getPath());
-		assertEquals("GET", request3.getMethod());
-		assertToken(request3, token);
-
-		// invalid response: string instead of list
-		assertThrows(ApiException.class, () ->
-				api.getFiles(properties, contactInboxId));
-		RecordedRequest request4 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request4.getPath());
-		assertEquals("GET", request4.getMethod());
-		assertToken(request4, token);
-
-		// invalid response: object instead of list
-		assertThrows(ApiException.class, () ->
-				api.getFiles(properties, contactInboxId));
-		RecordedRequest request5 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request5.getPath());
-		assertEquals("GET", request5.getMethod());
-		assertToken(request5, token);
-
-		// invalid response: list with non-objects
-		assertThrows(ApiException.class, () ->
-				api.getFiles(properties, contactInboxId));
-		RecordedRequest request6 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request6.getPath());
-		assertEquals("GET", request6.getMethod());
-		assertToken(request6, token);
-
-		// no files key in root object
-		assertThrows(ApiException.class, () ->
-				api.getFiles(properties, contactInboxId));
-		RecordedRequest request7 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request7.getPath());
-		assertEquals("GET", request7.getMethod());
-		assertToken(request7, token);
-
-		// 401 not authorized
-		assertThrows(ApiException.class, () ->
-				api.getFiles(properties, contactInboxId));
-		RecordedRequest request8 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request8.getPath());
-		assertEquals("GET", request8.getMethod());
-		assertToken(request8, token);
-
-		// 500 internal server error
-		assertThrows(ApiException.class,
-				() -> api.getFiles(properties, contactInboxId));
-		RecordedRequest request9 = server.takeRequest();
-		assertEquals("/files/" + contactInboxId, request9.getPath());
-		assertEquals("GET", request9.getMethod());
-		assertToken(request9, token);
-	}
-
-	@Test
-	public void testGetFile() throws Exception {
-		MailboxFileId name = new MailboxFileId(getRandomId());
-		File file1 = folder.newFile();
-		File file2 = folder.newFile();
-		File file3 = folder.newFile();
-		byte[] bytes = getRandomBytes(1337);
-
-		MockWebServer server = new MockWebServer();
-		server.enqueue(new MockResponse().setBody(new Buffer().write(bytes)));
-		server.enqueue(new MockResponse().setResponseCode(401));
-		server.enqueue(new MockResponse().setResponseCode(500));
-		server.start();
-		String baseUrl = getBaseUrl(server);
-		MailboxProperties properties =
-				new MailboxProperties(baseUrl, token, true);
-
-		// file gets downloaded as expected
-		api.getFile(properties, contactOutboxId, name, file1);
-		RecordedRequest request1 = server.takeRequest();
-		assertEquals("/files/" + contactOutboxId + "/" + name,
-				request1.getPath());
-		assertEquals("GET", request1.getMethod());
-		assertToken(request1, token);
-		assertArrayEquals(bytes, readBytes(file1));
-
-		// request is not successful
-		assertThrows(ApiException.class, () ->
-				api.getFile(properties, contactOutboxId, name, file2));
-		RecordedRequest request2 = server.takeRequest();
-		assertEquals("/files/" + contactOutboxId + "/" + name,
-				request2.getPath());
-		assertEquals("GET", request1.getMethod());
-		assertToken(request2, token);
-		assertEquals(0, readBytes(file2).length);
-
-		// server error
-		assertThrows(ApiException.class, () ->
-				api.getFile(properties, contactOutboxId, name, file3));
-		RecordedRequest request3 = server.takeRequest();
-		assertEquals("/files/" + contactOutboxId + "/" + name,
-				request3.getPath());
-		assertEquals("GET", request1.getMethod());
-		assertToken(request3, token);
-		assertEquals(0, readBytes(file3).length);
-	}
-
-	@Test
-	public void testDeleteFile() throws Exception {
-		MailboxFileId name = new MailboxFileId(getRandomId());
-
-		MockWebServer server = new MockWebServer();
-		server.enqueue(new MockResponse());
-		server.enqueue(new MockResponse().setResponseCode(205));
-		server.enqueue(new MockResponse().setResponseCode(401));
-		server.enqueue(new MockResponse().setResponseCode(404));
-		server.start();
-		String baseUrl = getBaseUrl(server);
-		MailboxProperties properties =
-				new MailboxProperties(baseUrl, token, true);
-
-		// file gets deleted as expected
-		api.deleteFile(properties, contactInboxId, name);
-		RecordedRequest request1 = server.takeRequest();
-		assertEquals("DELETE", request1.getMethod());
-		assertEquals("/files/" + contactInboxId + "/" + name,
-				request1.getPath());
-		assertToken(request1, token);
-
-		// request is not returning 200
-		assertThrows(ApiException.class, () ->
-				api.deleteFile(properties, contactInboxId, name));
-		RecordedRequest request2 = server.takeRequest();
-		assertEquals("DELETE", request2.getMethod());
-		assertEquals("/files/" + contactInboxId + "/" + name,
-				request2.getPath());
-		assertToken(request2, token);
-
-		// request is not authorized
-		assertThrows(ApiException.class, () ->
-				api.deleteFile(properties, contactInboxId, name));
-		RecordedRequest request3 = server.takeRequest();
-		assertEquals("DELETE", request3.getMethod());
-		assertEquals("/files/" + contactInboxId + "/" + name,
-				request3.getPath());
-		assertToken(request3, token);
-
-		// file not found is tolerable
-		assertThrows(TolerableFailureException.class, () ->
-				api.deleteFile(properties, contactInboxId, name));
-		RecordedRequest request4 = server.takeRequest();
-		assertEquals("DELETE", request4.getMethod());
-		assertEquals("/files/" + contactInboxId + "/" + name,
-				request4.getPath());
-		assertToken(request4, token);
-	}
-
-	@Test
-	public void testGetFolders() throws Exception {
-		MailboxFolderId id1 = new MailboxFolderId(getRandomId());
-		MailboxFolderId id2 = new MailboxFolderId(getRandomId());
-		String validResponse1 = "{\"folders\": [ {\"id\": \"" + id1 + "\"} ] }";
-		String validResponse2 = "{\"folders\": [ {\"id\": \"" + id1 + "\"}, " +
-				"{ \"id\": \"" + id2 + "\"} ] }";
-		String invalidResponse1 = "{\"folders\":\"bar\"}";
-		String invalidResponse2 = "{\"folders\":{\"foo\":\"bar\"}}";
-		String invalidResponse3 =
-				"{\"folders\": [ {\"id\": \"" + id1 + "\", 1] }";
-		String invalidResponse4 = "{\"files\": [ 1, 2 ] }";
-
-		MockWebServer server = new MockWebServer();
-		server.enqueue(new MockResponse().setBody(validResponse1));
-		server.enqueue(new MockResponse().setBody(validResponse2));
-		server.enqueue(new MockResponse());
-		server.enqueue(new MockResponse().setBody(invalidResponse1));
-		server.enqueue(new MockResponse().setBody(invalidResponse2));
-		server.enqueue(new MockResponse().setBody(invalidResponse3));
-		server.enqueue(new MockResponse().setBody(invalidResponse4));
-		server.enqueue(new MockResponse().setResponseCode(401));
-		server.enqueue(new MockResponse().setResponseCode(500));
-		server.start();
-		String baseUrl = getBaseUrl(server);
-		MailboxProperties properties =
-				new MailboxProperties(baseUrl, token, true);
-
-		// valid response with one folders
-		assertEquals(singletonList(id1), api.getFolders(properties));
-		RecordedRequest request1 = server.takeRequest();
-		assertEquals("/folders", request1.getPath());
-		assertEquals("GET", request1.getMethod());
-		assertToken(request1, token);
-
-		// valid response with two folders
-		assertEquals(Arrays.asList(id1, id2), api.getFolders(properties));
-		RecordedRequest request2 = server.takeRequest();
-		assertEquals("/folders", request1.getPath());
-		assertEquals("GET", request2.getMethod());
-		assertToken(request2, token);
-
-		// empty body
-		assertThrows(ApiException.class, () -> api.getFolders(properties));
-		RecordedRequest request3 = server.takeRequest();
-		assertEquals("/folders", request3.getPath());
-		assertEquals("GET", request3.getMethod());
-		assertToken(request3, token);
-
-		// invalid response: string instead of list
-		assertThrows(ApiException.class, () -> api.getFolders(properties));
-		RecordedRequest request4 = server.takeRequest();
-		assertEquals("/folders", request4.getPath());
-		assertEquals("GET", request4.getMethod());
-		assertToken(request4, token);
-
-		// invalid response: object instead of list
-		assertThrows(ApiException.class, () -> api.getFolders(properties));
-		RecordedRequest request5 = server.takeRequest();
-		assertEquals("/folders", request5.getPath());
-		assertEquals("GET", request5.getMethod());
-		assertToken(request5, token);
-
-		// invalid response: list with non-objects
-		assertThrows(ApiException.class, () -> api.getFolders(properties));
-		RecordedRequest request6 = server.takeRequest();
-		assertEquals("/folders", request6.getPath());
-		assertEquals("GET", request6.getMethod());
-		assertToken(request6, token);
-
-		// no folders key in root object
-		assertThrows(ApiException.class, () -> api.getFolders(properties));
-		RecordedRequest request7 = server.takeRequest();
-		assertEquals("/folders", request7.getPath());
-		assertEquals("GET", request7.getMethod());
-		assertToken(request7, token);
-
-		// 401 not authorized
-		assertThrows(ApiException.class, () -> api.getFolders(properties));
-		RecordedRequest request8 = server.takeRequest();
-		assertEquals("/folders", request8.getPath());
-		assertEquals("GET", request8.getMethod());
-		assertToken(request8, token);
-
-		// 500 internal server error
-		assertThrows(ApiException.class, () -> api.getFolders(properties));
-		RecordedRequest request9 = server.takeRequest();
-		assertEquals("/folders", request9.getPath());
-		assertEquals("GET", request9.getMethod());
-		assertToken(request9, token);
-	}
-
-	@Test
-	public void testGetFoldersOnlyForOwner() {
-		MailboxProperties properties =
-				new MailboxProperties("", token, false);
-		assertThrows(IllegalArgumentException.class, () ->
-				api.getFolders(properties));
-	}
-
-	private String getBaseUrl(MockWebServer server) {
-		String baseUrl = server.url("").toString();
-		return baseUrl.substring(0, baseUrl.length() - 1);
-	}
-
-	private void assertToken(RecordedRequest request, MailboxId token) {
-		assertNotNull(request.getHeader("Authorization"));
-		assertEquals("Bearer " + token, request.getHeader("Authorization"));
-	}
-
-}

bramble-core/src/test/java/org/briarproject/bramble/mailbox/MailboxIntegrationTest.java

@@ -1,272 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import org.briarproject.bramble.api.WeakSingletonProvider;
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.mailbox.InvalidMailboxIdException;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
-import org.briarproject.bramble.api.mailbox.MailboxFileId;
-import org.briarproject.bramble.api.mailbox.MailboxFolderId;
-import org.briarproject.bramble.api.mailbox.MailboxProperties;
-import org.briarproject.bramble.mailbox.MailboxApi.ApiException;
-import org.briarproject.bramble.mailbox.MailboxApi.MailboxContact;
-import org.briarproject.bramble.mailbox.MailboxApi.MailboxFile;
-import org.briarproject.bramble.mailbox.MailboxApi.TolerableFailureException;
-import org.briarproject.bramble.test.BrambleTestCase;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.List;
-
-import javax.annotation.Nonnull;
-import javax.net.SocketFactory;
-
-import okhttp3.OkHttpClient;
-
-import static java.util.Collections.emptyList;
-import static java.util.Collections.singletonList;
-import static java.util.concurrent.TimeUnit.MILLISECONDS;
-import static org.briarproject.bramble.test.TestUtils.getRandomBytes;
-import static org.briarproject.bramble.test.TestUtils.getRandomId;
-import static org.briarproject.bramble.test.TestUtils.isOptionalTestEnabled;
-import static org.briarproject.bramble.test.TestUtils.readBytes;
-import static org.briarproject.bramble.test.TestUtils.writeBytes;
-import static org.junit.Assert.assertArrayEquals;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThrows;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assume.assumeTrue;
-
-public class MailboxIntegrationTest extends BrambleTestCase {
-
-	@Rule
-	public TemporaryFolder folder = new TemporaryFolder();
-
-	private final static String URL_BASE = "http://127.0.0.1:8000";
-	private final static MailboxAuthToken SETUP_TOKEN;
-
-	static {
-		try {
-			SETUP_TOKEN = MailboxAuthToken.fromString(
-					"54686973206973206120736574757020746f6b656e20666f722042726961722e");
-		} catch (InvalidMailboxIdException e) {
-			throw new IllegalStateException();
-		}
-	}
-
-	private static final OkHttpClient client = new OkHttpClient.Builder()
-			.socketFactory(SocketFactory.getDefault())
-			.connectTimeout(60_000, MILLISECONDS)
-			.build();
-	private static final WeakSingletonProvider<OkHttpClient>
-			httpClientProvider =
-			new WeakSingletonProvider<OkHttpClient>() {
-				@Override
-				@Nonnull
-				public OkHttpClient createInstance() {
-					return client;
-				}
-			};
-	private final static MailboxApiImpl api =
-			new MailboxApiImpl(httpClientProvider);
-	// needs to be static to keep values across different tests
-	private static MailboxProperties ownerProperties;
-
-	/**
-	 * Called before each test to make sure the mailbox is setup once
-	 * before starting with individual tests.
-	 * {@link BeforeClass} needs to be static, so we can't use the API class.
-	 */
-	@Before
-	public void ensureSetup() throws IOException, ApiException {
-		// Skip this test unless it's explicitly enabled in the environment
-		assumeTrue(isOptionalTestEnabled(MailboxIntegrationTest.class));
-
-		if (ownerProperties != null) return;
-		MailboxProperties setupProperties =
-				new MailboxProperties(URL_BASE, SETUP_TOKEN, true);
-		MailboxAuthToken ownerToken = api.setup(setupProperties);
-		ownerProperties = new MailboxProperties(URL_BASE, ownerToken, true);
-	}
-
-	@AfterClass
-	// we can't test wiping as a regular test as it stops the mailbox
-	public static void wipe() throws IOException, ApiException {
-		if (!isOptionalTestEnabled(MailboxIntegrationTest.class)) return;
-		
-		api.wipeMailbox(ownerProperties);
-
-		// check doesn't work anymore
-		assertThrows(ApiException.class, () ->
-				api.checkStatus(ownerProperties));
-
-		// new setup doesn't work as mailbox is stopping
-		MailboxProperties setupProperties =
-				new MailboxProperties(URL_BASE, SETUP_TOKEN, true);
-		assertThrows(ApiException.class, () -> api.setup(setupProperties));
-	}
-
-	@Test
-	public void testStatus() throws Exception {
-		assertTrue(api.checkStatus(ownerProperties));
-	}
-
-	@Test
-	public void testContactApi() throws Exception {
-		ContactId contactId1 = new ContactId(1);
-		ContactId contactId2 = new ContactId(2);
-		MailboxContact mailboxContact1 = getMailboxContact(contactId1);
-		MailboxContact mailboxContact2 = getMailboxContact(contactId2);
-
-		// no contacts initially
-		assertEquals(emptyList(), api.getContacts(ownerProperties));
-		// added contact gets returned
-		api.addContact(ownerProperties, mailboxContact1);
-		assertEquals(singletonList(contactId1),
-				api.getContacts(ownerProperties));
-		// second contact also gets returned
-		api.addContact(ownerProperties, mailboxContact2);
-		assertEquals(Arrays.asList(contactId1, contactId2),
-				api.getContacts(ownerProperties));
-
-		// after both contacts get deleted, the list is empty again
-		api.deleteContact(ownerProperties, contactId1);
-		api.deleteContact(ownerProperties, contactId2);
-		assertEquals(emptyList(), api.getContacts(ownerProperties));
-
-		// deleting again is tolerable
-		assertThrows(TolerableFailureException.class,
-				() -> api.deleteContact(ownerProperties, contactId2));
-	}
-
-	@Test
-	public void testFileManagementApi() throws Exception {
-		// add contact, so we can leave each other files
-		ContactId contactId = new ContactId(1);
-		MailboxContact contact = getMailboxContact(contactId);
-		MailboxProperties contactProperties = new MailboxProperties(
-				ownerProperties.getBaseUrl(), contact.token, false);
-		api.addContact(ownerProperties, contact);
-
-		// upload a file for our contact
-		File file1 = folder.newFile();
-		byte[] bytes1 = getRandomBytes(2048);
-		writeBytes(file1, bytes1);
-		api.addFile(ownerProperties, contact.inboxId, file1);
-
-		// contact checks files
-		List<MailboxFile> files1 =
-				api.getFiles(contactProperties, contact.inboxId);
-		assertEquals(1, files1.size());
-		MailboxFileId fileName1 = files1.get(0).name;
-
-		// owner can't check files
-		assertThrows(ApiException.class, () ->
-				api.getFiles(ownerProperties, contact.inboxId));
-
-		// contact downloads file
-		File file1downloaded = folder.newFile();
-		api.getFile(contactProperties, contact.inboxId, fileName1,
-				file1downloaded);
-		assertArrayEquals(bytes1, readBytes(file1downloaded));
-
-		// owner can't download file, even if knowing name
-		File file1forbidden = folder.newFile();
-		assertThrows(ApiException.class, () -> api.getFile(ownerProperties,
-				contact.inboxId, fileName1, file1forbidden));
-		assertEquals(0, file1forbidden.length());
-
-		// owner can't delete file
-		assertThrows(ApiException.class, () ->
-				api.deleteFile(ownerProperties, contact.inboxId, fileName1));
-
-		// contact deletes file
-		api.deleteFile(contactProperties, contact.inboxId, fileName1);
-		assertEquals(0,
-				api.getFiles(contactProperties, contact.inboxId).size());
-
-		// contact uploads two files for the owner
-		File file2 = folder.newFile();
-		File file3 = folder.newFile();
-		byte[] bytes2 = getRandomBytes(2048);
-		byte[] bytes3 = getRandomBytes(1024);
-		writeBytes(file2, bytes2);
-		writeBytes(file3, bytes3);
-		api.addFile(contactProperties, contact.outboxId, file2);
-		api.addFile(contactProperties, contact.outboxId, file3);
-
-		// owner checks folders with available files
-		List<MailboxFolderId> folders = api.getFolders(ownerProperties);
-		assertEquals(singletonList(contact.outboxId), folders);
-
-		// owner lists files in contact's outbox
-		List<MailboxFile> files2 =
-				api.getFiles(ownerProperties, contact.outboxId);
-		assertEquals(2, files2.size());
-		MailboxFileId file2name = files2.get(0).name;
-		MailboxFileId file3name = files2.get(1).name;
-
-		// contact can't list files in contact's outbox
-		assertThrows(ApiException.class, () ->
-				api.getFiles(contactProperties, contact.outboxId));
-
-		// owner downloads both files from contact's outbox
-		File file2downloaded = folder.newFile();
-		File file3downloaded = folder.newFile();
-		api.getFile(ownerProperties, contact.outboxId, file2name,
-				file2downloaded);
-		api.getFile(ownerProperties, contact.outboxId, file3name,
-				file3downloaded);
-		byte[] downloadedBytes2 = readBytes(file2downloaded);
-		byte[] downloadedBytes3 = readBytes(file3downloaded);
-		// file order is preserved (sorted by time),
-		// so we know what file is which
-		assertArrayEquals(bytes2, downloadedBytes2);
-		assertArrayEquals(bytes3, downloadedBytes3);
-
-		// contact can't download files again, even if knowing name
-		File file2forbidden = folder.newFile();
-		File file3forbidden = folder.newFile();
-		assertThrows(ApiException.class, () -> api.getFile(contactProperties,
-				contact.outboxId, file2name, file2forbidden));
-		assertThrows(ApiException.class, () -> api.getFile(contactProperties,
-				contact.outboxId, file3name, file3forbidden));
-		assertEquals(0, file1forbidden.length());
-		assertEquals(0, file2forbidden.length());
-
-		// contact can't delete files in outbox
-		assertThrows(ApiException.class, () ->
-				api.deleteFile(contactProperties, contact.outboxId, file2name));
-		assertThrows(ApiException.class, () ->
-				api.deleteFile(contactProperties, contact.outboxId, file3name));
-
-		// owner deletes files
-		api.deleteFile(ownerProperties, contact.outboxId, file2name);
-		api.deleteFile(ownerProperties, contact.outboxId, file3name);
-		assertEquals(emptyList(),
-				api.getFiles(ownerProperties, contact.outboxId));
-		assertEquals(emptyList(), api.getFolders(ownerProperties));
-
-		// deleting a non-existent file is tolerable
-		assertThrows(TolerableFailureException.class, () ->
-				api.deleteFile(ownerProperties, contact.outboxId, file3name));
-
-		// owner deletes contact again to leave clean state for other tests
-		api.deleteContact(ownerProperties, contactId);
-		assertEquals(emptyList(), api.getContacts(ownerProperties));
-	}
-
-	private MailboxContact getMailboxContact(ContactId contactId) {
-		MailboxAuthToken authToken = new MailboxAuthToken(getRandomId());
-		MailboxFolderId inboxId = new MailboxFolderId(getRandomId());
-		MailboxFolderId outboxId = new MailboxFolderId(getRandomId());
-		return new MailboxContact(contactId, authToken, inboxId, outboxId);
-	}
-
-}

bramble-core/src/test/java/org/briarproject/bramble/mailbox/MailboxPairingTaskImplTest.java

@@ -1,212 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import org.briarproject.bramble.api.contact.Contact;
-import org.briarproject.bramble.api.crypto.CryptoComponent;
-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.mailbox.MailboxAuthToken;
-import org.briarproject.bramble.api.mailbox.MailboxPairingState;
-import org.briarproject.bramble.api.mailbox.MailboxPairingTask;
-import org.briarproject.bramble.api.mailbox.MailboxProperties;
-import org.briarproject.bramble.api.mailbox.MailboxPropertyManager;
-import org.briarproject.bramble.api.mailbox.MailboxSettingsManager;
-import org.briarproject.bramble.api.mailbox.OwnMailboxConnectionStatusEvent;
-import org.briarproject.bramble.api.system.Clock;
-import org.briarproject.bramble.test.BrambleMockTestCase;
-import org.briarproject.bramble.test.DbExpectations;
-import org.briarproject.bramble.test.ImmediateExecutor;
-import org.briarproject.bramble.test.PredicateMatcher;
-import org.jmock.Expectations;
-import org.junit.Test;
-
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.nio.charset.Charset;
-import java.util.Collections;
-import java.util.concurrent.Executor;
-import java.util.concurrent.atomic.AtomicInteger;
-
-import static org.briarproject.bramble.test.TestUtils.getContact;
-import static org.briarproject.bramble.test.TestUtils.getRandomBytes;
-import static org.briarproject.bramble.test.TestUtils.getRandomId;
-import static org.briarproject.bramble.test.TestUtils.hasEvent;
-import static org.briarproject.bramble.util.StringUtils.getRandomString;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-
-public class MailboxPairingTaskImplTest extends BrambleMockTestCase {
-
-	private final Executor executor = new ImmediateExecutor();
-	private final DatabaseComponent db =
-			context.mock(DatabaseComponent.class);
-	private final CryptoComponent crypto = context.mock(CryptoComponent.class);
-	private final Clock clock = context.mock(Clock.class);
-	private final MailboxApi api = context.mock(MailboxApi.class);
-	private final MailboxSettingsManager mailboxSettingsManager =
-			context.mock(MailboxSettingsManager.class);
-	private final MailboxPropertyManager mailboxPropertyManager =
-			context.mock(MailboxPropertyManager.class);
-	private final MailboxPairingTaskFactory factory =
-			new MailboxPairingTaskFactoryImpl(executor, db, crypto, clock, api,
-					mailboxSettingsManager, mailboxPropertyManager);
-
-	private final String onion = getRandomString(56);
-	private final byte[] onionBytes = getRandomBytes(32);
-	private final String onionAddress = "http://" + onion + ".onion";
-	private final MailboxAuthToken setupToken =
-			new MailboxAuthToken(getRandomId());
-	private final MailboxAuthToken ownerToken =
-			new MailboxAuthToken(getRandomId());
-	private final String validPayload = getValidPayload();
-	private final long time = System.currentTimeMillis();
-	private final MailboxProperties setupProperties =
-			new MailboxProperties(onionAddress, setupToken, true);
-	private final MailboxProperties ownerProperties =
-			new MailboxProperties(onionAddress, ownerToken, true);
-
-	@Test
-	public void testInitialQrCodeReceivedState() {
-		MailboxPairingTask task =
-				factory.createPairingTask(getRandomString(42));
-		task.addObserver(state ->
-				assertTrue(state instanceof MailboxPairingState.QrCodeReceived)
-		);
-	}
-
-	@Test
-	public void testInvalidQrCode() {
-		MailboxPairingTask task1 =
-				factory.createPairingTask(getRandomString(42));
-		task1.run();
-		task1.addObserver(state ->
-				assertTrue(state instanceof MailboxPairingState.InvalidQrCode)
-		);
-
-		String goodLength = "00" + getRandomString(63);
-		MailboxPairingTask task2 = factory.createPairingTask(goodLength);
-		task2.run();
-		task2.addObserver(state ->
-				assertTrue(state instanceof MailboxPairingState.InvalidQrCode)
-		);
-	}
-
-	@Test
-	public void testSuccessfulPairing() throws Exception {
-		context.checking(new Expectations() {{
-			oneOf(crypto).encodeOnion(onionBytes);
-			will(returnValue(onion));
-			oneOf(api).setup(with(matches(setupProperties)));
-			will(returnValue(ownerToken));
-			oneOf(clock).currentTimeMillis();
-			will(returnValue(time));
-		}});
-		Contact contact1 = getContact();
-		Transaction txn = new Transaction(null, false);
-		context.checking(new DbExpectations() {{
-			oneOf(db).transaction(with(false), withDbRunnable(txn));
-			oneOf(mailboxSettingsManager).setOwnMailboxProperties(
-					with(txn), with(matches(ownerProperties)));
-			oneOf(mailboxSettingsManager).recordSuccessfulConnection(txn, time);
-			oneOf(db).getContacts(txn);
-			will(returnValue(Collections.singletonList(contact1)));
-			oneOf(mailboxPropertyManager).getRemoteProperties(txn,
-					contact1.getId());
-			will(returnValue(null));
-			oneOf(db).resetUnackedMessagesToSend(txn, contact1.getId());
-		}});
-
-		AtomicInteger i = new AtomicInteger(0);
-		MailboxPairingTask task = factory.createPairingTask(validPayload);
-		task.addObserver(state -> {
-			if (i.get() == 0) {
-				assertEquals(MailboxPairingState.QrCodeReceived.class,
-						state.getClass());
-			} else if (i.get() == 1) {
-				assertEquals(MailboxPairingState.Pairing.class,
-						state.getClass());
-			} else if (i.get() == 2) {
-				assertEquals(MailboxPairingState.Paired.class,
-						state.getClass());
-			} else fail("Unexpected change of state " + state.getClass());
-			i.getAndIncrement();
-		});
-		task.run();
-		hasEvent(txn, OwnMailboxConnectionStatusEvent.class);
-	}
-
-	@Test
-	public void testAlreadyPaired() throws Exception {
-		testApiException(new MailboxApi.MailboxAlreadyPairedException(),
-				MailboxPairingState.MailboxAlreadyPaired.class);
-	}
-
-	@Test
-	public void testMailboxApiException() throws Exception {
-		testApiException(new MailboxApi.ApiException(),
-				MailboxPairingState.UnexpectedError.class);
-	}
-
-	@Test
-	public void testApiIOException() throws Exception {
-		testApiException(new IOException(),
-				MailboxPairingState.ConnectionError.class);
-	}
-
-	private void testApiException(Exception e,
-			Class<? extends MailboxPairingState> s) throws Exception {
-		context.checking(new Expectations() {{
-			oneOf(crypto).encodeOnion(onionBytes);
-			will(returnValue(onion));
-			oneOf(api).setup(with(matches(setupProperties)));
-			will(throwException(e));
-		}});
-
-		MailboxPairingTask task = factory.createPairingTask(validPayload);
-		task.run();
-		task.addObserver(state -> assertEquals(state.getClass(), s));
-	}
-
-	@Test
-	public void testDbException() throws Exception {
-		context.checking(new Expectations() {{
-			oneOf(crypto).encodeOnion(onionBytes);
-			will(returnValue(onion));
-			oneOf(api).setup(with(matches(setupProperties)));
-			will(returnValue(ownerToken));
-			oneOf(clock).currentTimeMillis();
-			will(returnValue(time));
-		}});
-		Transaction txn = new Transaction(null, false);
-		context.checking(new DbExpectations() {{
-			oneOf(db).transaction(with(false), withDbRunnable(txn));
-			oneOf(mailboxSettingsManager).setOwnMailboxProperties(
-					with(txn), with(matches(ownerProperties)));
-			will(throwException(new DbException()));
-		}});
-
-		MailboxPairingTask task = factory.createPairingTask(validPayload);
-		task.run();
-		task.addObserver(state -> assertEquals(state.getClass(),
-				MailboxPairingState.UnexpectedError.class));
-	}
-
-	private String getValidPayload() {
-		byte[] payloadBytes = ByteBuffer.allocate(65)
-				.put((byte) 32) // 1
-				.put(onionBytes) // 32
-				.put(setupToken.getBytes()) // 32
-				.array();
-		//noinspection CharsetObjectCanBeUsed
-		return new String(payloadBytes, Charset.forName("ISO-8859-1"));
-	}
-
-	private PredicateMatcher<MailboxProperties> matches(MailboxProperties p2) {
-		return new PredicateMatcher<>(MailboxProperties.class, p1 ->
-				p1.getAuthToken().equals(p2.getAuthToken()) &&
-						p1.getBaseUrl().equals(p2.getBaseUrl()) &&
-						p1.isOwner() == p2.isOwner());
-	}
-
-}

bramble-core/src/test/java/org/briarproject/bramble/mailbox/MailboxPropertyManagerImplTest.java

@@ -1,701 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import org.briarproject.bramble.api.client.ClientHelper;
-import org.briarproject.bramble.api.client.ContactGroupFactory;
-import org.briarproject.bramble.api.contact.Contact;
-import org.briarproject.bramble.api.crypto.CryptoComponent;
-import org.briarproject.bramble.api.data.BdfDictionary;
-import org.briarproject.bramble.api.data.BdfEntry;
-import org.briarproject.bramble.api.data.BdfList;
-import org.briarproject.bramble.api.data.MetadataParser;
-import org.briarproject.bramble.api.db.DatabaseComponent;
-import org.briarproject.bramble.api.db.Metadata;
-import org.briarproject.bramble.api.db.Transaction;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
-import org.briarproject.bramble.api.mailbox.MailboxFolderId;
-import org.briarproject.bramble.api.mailbox.MailboxProperties;
-import org.briarproject.bramble.api.mailbox.MailboxPropertiesUpdate;
-import org.briarproject.bramble.api.mailbox.MailboxSettingsManager;
-import org.briarproject.bramble.api.mailbox.RemoteMailboxPropertiesUpdateEvent;
-import org.briarproject.bramble.api.sync.Group;
-import org.briarproject.bramble.api.sync.GroupId;
-import org.briarproject.bramble.api.sync.Message;
-import org.briarproject.bramble.api.sync.MessageId;
-import org.briarproject.bramble.api.system.Clock;
-import org.briarproject.bramble.api.versioning.ClientVersioningManager;
-import org.briarproject.bramble.test.BrambleMockTestCase;
-import org.jmock.Expectations;
-import org.junit.Test;
-
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-
-import static java.util.Collections.singletonList;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.CLIENT_ID;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.MAJOR_VERSION;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.MSG_KEY_LOCAL;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.MSG_KEY_VERSION;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_AUTHTOKEN;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_INBOXID;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_ONION;
-import static org.briarproject.bramble.api.mailbox.MailboxPropertyManager.PROP_KEY_OUTBOXID;
-import static org.briarproject.bramble.api.sync.Group.Visibility.SHARED;
-import static org.briarproject.bramble.api.sync.validation.IncomingMessageHook.DeliveryAction.ACCEPT_DO_NOT_SHARE;
-import static org.briarproject.bramble.test.TestUtils.getContact;
-import static org.briarproject.bramble.test.TestUtils.getGroup;
-import static org.briarproject.bramble.test.TestUtils.getMessage;
-import static org.briarproject.bramble.test.TestUtils.getRandomId;
-import static org.briarproject.bramble.test.TestUtils.hasEvent;
-import static org.briarproject.bramble.test.TestUtils.mailboxPropertiesUpdateEqual;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
-
-public class MailboxPropertyManagerImplTest extends BrambleMockTestCase {
-
-	private final DatabaseComponent db = context.mock(DatabaseComponent.class);
-	private final ClientHelper clientHelper = context.mock(ClientHelper.class);
-	private final ClientVersioningManager clientVersioningManager =
-			context.mock(ClientVersioningManager.class);
-	private final MetadataParser metadataParser =
-			context.mock(MetadataParser.class);
-	private final ContactGroupFactory contactGroupFactory =
-			context.mock(ContactGroupFactory.class);
-	private final Clock clock = context.mock(Clock.class);
-	private final CryptoComponent crypto = context.mock(CryptoComponent.class);
-	private final MailboxSettingsManager mailboxSettingsManager =
-			context.mock(MailboxSettingsManager.class);
-
-	private final Group localGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-	private final BdfDictionary propsDict;
-	private final BdfDictionary emptyPropsDict = new BdfDictionary();
-	private final MailboxPropertiesUpdate props;
-	private final MailboxProperties ownProps;
-
-	public MailboxPropertyManagerImplTest() {
-		ownProps = new MailboxProperties("http://bar.onion",
-				new MailboxAuthToken(getRandomId()), true);
-		props = new MailboxPropertiesUpdate(ownProps.getOnion(),
-				new MailboxAuthToken(getRandomId()),
-				new MailboxFolderId(getRandomId()),
-				new MailboxFolderId(getRandomId()));
-		propsDict = new BdfDictionary();
-		propsDict.put(PROP_KEY_ONION, props.getOnion());
-		propsDict.put(PROP_KEY_AUTHTOKEN, props.getAuthToken().getBytes());
-		propsDict.put(PROP_KEY_INBOXID, props.getInboxId().getBytes());
-		propsDict.put(PROP_KEY_OUTBOXID, props.getOutboxId().getBytes());
-	}
-
-	private MailboxPropertyManagerImpl createInstance() {
-		context.checking(new Expectations() {{
-			oneOf(contactGroupFactory).createLocalGroup(CLIENT_ID,
-					MAJOR_VERSION);
-			will(returnValue(localGroup));
-		}});
-		return new MailboxPropertyManagerImpl(db, clientHelper,
-				clientVersioningManager, metadataParser, contactGroupFactory,
-				clock, mailboxSettingsManager, crypto);
-	}
-
-	@Test
-	public void testCreatesGroupsAtUnpairedStartup() throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-
-		context.checking(new Expectations() {{
-			oneOf(db).containsGroup(txn, localGroup.getId());
-			will(returnValue(false));
-			oneOf(db).addGroup(txn, localGroup);
-			oneOf(db).getContacts(txn);
-			will(returnValue(singletonList(contact)));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(db).addGroup(txn, contactGroup);
-			oneOf(clientVersioningManager).getClientVisibility(txn,
-					contact.getId(), CLIENT_ID, MAJOR_VERSION);
-			will(returnValue(SHARED));
-			oneOf(db).setGroupVisibility(txn, contact.getId(),
-					contactGroup.getId(), SHARED);
-			oneOf(clientHelper).setContactId(txn, contactGroup.getId(),
-					contact.getId());
-			oneOf(mailboxSettingsManager).getOwnMailboxProperties(txn);
-			will(returnValue(null));
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		t.onDatabaseOpened(txn);
-	}
-
-	@Test
-	public void testCreatesGroupsAndCreatesAndSendsAtPairedStartup()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-		Map<MessageId, BdfDictionary> messageMetadata = new LinkedHashMap<>();
-
-		context.checking(new Expectations() {{
-			oneOf(db).containsGroup(txn, localGroup.getId());
-			will(returnValue(false));
-			oneOf(db).addGroup(txn, localGroup);
-			oneOf(db).getContacts(txn);
-			will(returnValue(singletonList(contact)));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(db).addGroup(txn, contactGroup);
-			oneOf(clientVersioningManager).getClientVisibility(txn,
-					contact.getId(), CLIENT_ID, MAJOR_VERSION);
-			will(returnValue(SHARED));
-			oneOf(db).setGroupVisibility(txn, contact.getId(),
-					contactGroup.getId(), SHARED);
-			oneOf(clientHelper).setContactId(txn, contactGroup.getId(),
-					contact.getId());
-			oneOf(mailboxSettingsManager).getOwnMailboxProperties(txn);
-			will(returnValue(ownProps));
-			oneOf(crypto).generateUniqueId();
-			will(returnValue(props.getAuthToken()));
-			oneOf(crypto).generateUniqueId();
-			will(returnValue(props.getInboxId()));
-			oneOf(crypto).generateUniqueId();
-			will(returnValue(props.getOutboxId()));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroup.getId());
-			will(returnValue(messageMetadata));
-			expectStoreMessage(txn, contactGroup.getId(), propsDict, 1, true);
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		t.onDatabaseOpened(txn);
-	}
-
-	@Test
-	public void testDoesNotCreateGroupsAtStartupIfAlreadyCreated()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-
-		context.checking(new Expectations() {{
-			oneOf(db).containsGroup(txn, localGroup.getId());
-			will(returnValue(true));
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		t.onDatabaseOpened(txn);
-	}
-
-	@Test
-	public void testCreatesContactGroupWhenAddingContactUnpaired()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-
-		context.checking(new Expectations() {{
-			// Create the group and share it with the contact
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(db).addGroup(txn, contactGroup);
-			oneOf(clientVersioningManager).getClientVisibility(txn,
-					contact.getId(), CLIENT_ID, MAJOR_VERSION);
-			will(returnValue(SHARED));
-			oneOf(db).setGroupVisibility(txn, contact.getId(),
-					contactGroup.getId(), SHARED);
-			oneOf(clientHelper).setContactId(txn, contactGroup.getId(),
-					contact.getId());
-			oneOf(mailboxSettingsManager).getOwnMailboxProperties(txn);
-			will(returnValue(null));
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		t.addingContact(txn, contact);
-	}
-
-	@Test
-	public void testCreatesContactGroupAndCreatesAndSendsWhenAddingContactPaired()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-		Map<MessageId, BdfDictionary> messageMetadata = new LinkedHashMap<>();
-
-		context.checking(new Expectations() {{
-			// Create the group and share it with the contact
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(db).addGroup(txn, contactGroup);
-			oneOf(clientVersioningManager).getClientVisibility(txn,
-					contact.getId(), CLIENT_ID, MAJOR_VERSION);
-			will(returnValue(SHARED));
-			oneOf(db).setGroupVisibility(txn, contact.getId(),
-					contactGroup.getId(), SHARED);
-			oneOf(clientHelper).setContactId(txn, contactGroup.getId(),
-					contact.getId());
-			oneOf(mailboxSettingsManager).getOwnMailboxProperties(txn);
-			will(returnValue(ownProps));
-			oneOf(crypto).generateUniqueId();
-			will(returnValue(props.getAuthToken()));
-			oneOf(crypto).generateUniqueId();
-			will(returnValue(props.getInboxId()));
-			oneOf(crypto).generateUniqueId();
-			will(returnValue(props.getOutboxId()));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroup.getId());
-			will(returnValue(messageMetadata));
-			expectStoreMessage(txn, contactGroup.getId(), propsDict, 1, true);
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		t.addingContact(txn, contact);
-	}
-
-	@Test
-	public void testRemovesGroupWhenRemovingContact() throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-
-		context.checking(new Expectations() {{
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(db).removeGroup(txn, contactGroup);
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		t.removingContact(txn, contact);
-	}
-
-	@Test
-	public void testDoesNotDeleteAnythingWhenFirstUpdateIsDelivered()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		GroupId contactGroupId = new GroupId(getRandomId());
-		Message message = getMessage(contactGroupId);
-		BdfList body = BdfList.of(1, propsDict);
-		Metadata meta = new Metadata();
-		BdfDictionary metaDictionary = BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 1),
-				new BdfEntry(MSG_KEY_LOCAL, false)
-		);
-		Map<MessageId, BdfDictionary> messageMetadata = new LinkedHashMap<>();
-		// A local update should be ignored
-		MessageId localUpdateId = new MessageId(getRandomId());
-		messageMetadata.put(localUpdateId, BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 1),
-				new BdfEntry(MSG_KEY_LOCAL, true)
-		));
-
-		context.checking(new Expectations() {{
-			oneOf(metadataParser).parse(meta);
-			will(returnValue(metaDictionary));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroupId);
-			will(returnValue(messageMetadata));
-			oneOf(clientHelper).getContactId(txn, contactGroupId);
-			will(returnValue(contact.getId()));
-			oneOf(clientHelper).getMessageAsList(txn, message.getId());
-			will(returnValue(body));
-			oneOf(clientHelper).parseAndValidateMailboxPropertiesUpdate(
-					propsDict);
-			will(returnValue(props));
-			oneOf(db).resetUnackedMessagesToSend(txn, contact.getId());
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		assertEquals(ACCEPT_DO_NOT_SHARE,
-				t.incomingMessage(txn, message, meta));
-		assertTrue(hasEvent(txn, RemoteMailboxPropertiesUpdateEvent.class));
-	}
-
-	@Test
-	public void testDeletesOlderUpdateWhenUpdateIsDelivered()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		GroupId contactGroupId = new GroupId(getRandomId());
-		Message message = getMessage(contactGroupId);
-		BdfList body = BdfList.of(1, propsDict);
-		Metadata meta = new Metadata();
-		BdfDictionary metaDictionary = BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 2),
-				new BdfEntry(MSG_KEY_LOCAL, false)
-		);
-		Map<MessageId, BdfDictionary> messageMetadata = new LinkedHashMap<>();
-		// This older version should be deleted
-		MessageId updateId = new MessageId(getRandomId());
-		messageMetadata.put(updateId, BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 1),
-				new BdfEntry(MSG_KEY_LOCAL, false)
-		));
-		// A local update should be ignored
-		MessageId localUpdateId = new MessageId(getRandomId());
-		messageMetadata.put(localUpdateId, BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 1),
-				new BdfEntry(MSG_KEY_LOCAL, true)
-		));
-
-		context.checking(new Expectations() {{
-			oneOf(metadataParser).parse(meta);
-			will(returnValue(metaDictionary));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroupId);
-			will(returnValue(messageMetadata));
-			oneOf(db).deleteMessage(txn, updateId);
-			oneOf(db).deleteMessageMetadata(txn, updateId);
-			oneOf(clientHelper).getContactId(txn, contactGroupId);
-			will(returnValue(contact.getId()));
-			oneOf(clientHelper).getMessageAsList(txn, message.getId());
-			will(returnValue(body));
-			oneOf(clientHelper).parseAndValidateMailboxPropertiesUpdate(
-					propsDict);
-			will(returnValue(props));
-			oneOf(db).resetUnackedMessagesToSend(txn, contact.getId());
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		assertEquals(ACCEPT_DO_NOT_SHARE,
-				t.incomingMessage(txn, message, meta));
-		assertTrue(hasEvent(txn, RemoteMailboxPropertiesUpdateEvent.class));
-	}
-
-	@Test
-	public void testDeletesObsoleteUpdateWhenDelivered() throws Exception {
-		Transaction txn = new Transaction(null, false);
-		GroupId contactGroupId = new GroupId(getRandomId());
-		Message message = getMessage(contactGroupId);
-		Metadata meta = new Metadata();
-		BdfDictionary metaDictionary = BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 3),
-				new BdfEntry(MSG_KEY_LOCAL, false)
-		);
-		Map<MessageId, BdfDictionary> messageMetadata = new LinkedHashMap<>();
-		// This newer version should not be deleted
-		MessageId updateId = new MessageId(getRandomId());
-		messageMetadata.put(updateId, BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 4),
-				new BdfEntry(MSG_KEY_LOCAL, false)
-		));
-
-		context.checking(new Expectations() {{
-			oneOf(metadataParser).parse(meta);
-			will(returnValue(metaDictionary));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroupId);
-			will(returnValue(messageMetadata));
-			oneOf(db).deleteMessage(txn, message.getId());
-			oneOf(db).deleteMessageMetadata(txn, message.getId());
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		assertEquals(ACCEPT_DO_NOT_SHARE,
-				t.incomingMessage(txn, message, meta));
-		assertFalse(hasEvent(txn, RemoteMailboxPropertiesUpdateEvent.class));
-	}
-
-	@Test
-	public void testCreatesAndStoresLocalPropertiesWithNewVersionOnPairing()
-			throws Exception {
-		Contact contact = getContact();
-		List<Contact> contacts = singletonList(contact);
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-
-		Transaction txn = new Transaction(null, false);
-		Map<MessageId, BdfDictionary> messageMetadata = new LinkedHashMap<>();
-		MessageId latestId = new MessageId(getRandomId());
-		messageMetadata.put(latestId, BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 1),
-				new BdfEntry(MSG_KEY_LOCAL, true)
-		));
-		// Some remote props, ignored
-		messageMetadata.put(new MessageId(getRandomId()), BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 3),
-				new BdfEntry(MSG_KEY_LOCAL, false)
-		));
-
-		context.checking(new Expectations() {{
-			oneOf(db).getContacts(txn);
-			will(returnValue(contacts));
-			oneOf(crypto).generateUniqueId();
-			will(returnValue(props.getAuthToken()));
-			oneOf(crypto).generateUniqueId();
-			will(returnValue(props.getInboxId()));
-			oneOf(crypto).generateUniqueId();
-			will(returnValue(props.getOutboxId()));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroup.getId());
-			will(returnValue(messageMetadata));
-			expectStoreMessage(txn, contactGroup.getId(), propsDict, 2, true);
-			oneOf(db).removeMessage(txn, latestId);
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		t.mailboxPaired(txn, ownProps.getOnion());
-	}
-
-	@Test
-	public void testStoresEmptyLocalPropertiesWithNewVersionOnUnpairing()
-			throws Exception {
-		Contact contact = getContact();
-		List<Contact> contacts = singletonList(contact);
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-
-		Transaction txn = new Transaction(null, false);
-		Map<MessageId, BdfDictionary> messageMetadata = new LinkedHashMap<>();
-		MessageId latestId = new MessageId(getRandomId());
-		messageMetadata.put(latestId, BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 1),
-				new BdfEntry(MSG_KEY_LOCAL, true)
-		));
-		// Some remote props, ignored
-		messageMetadata.put(new MessageId(getRandomId()), BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 3),
-				new BdfEntry(MSG_KEY_LOCAL, false)
-		));
-
-		context.checking(new Expectations() {{
-			oneOf(db).getContacts(txn);
-			will(returnValue(contacts));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroup.getId());
-			will(returnValue(messageMetadata));
-			expectStoreMessage(txn, contactGroup.getId(), emptyPropsDict,
-					2, true);
-			oneOf(db).removeMessage(txn, latestId);
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		t.mailboxUnpaired(txn);
-	}
-
-	@Test
-	public void testGetRemoteProperties()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-		BdfDictionary metaDictionary = BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 1),
-				new BdfEntry(MSG_KEY_LOCAL, false)
-		);
-		Map<MessageId, BdfDictionary> messageMetadata = new LinkedHashMap<>();
-		MessageId fooUpdateId = new MessageId(getRandomId());
-		messageMetadata.put(fooUpdateId, metaDictionary);
-		BdfList fooUpdate = BdfList.of(1, propsDict);
-
-		context.checking(new Expectations() {{
-			oneOf(db).getContact(txn, contact.getId());
-			will(returnValue(contact));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroup.getId());
-			will(returnValue(messageMetadata));
-			oneOf(clientHelper).getMessageAsList(txn, fooUpdateId);
-			will(returnValue(fooUpdate));
-			oneOf(clientHelper).parseAndValidateMailboxPropertiesUpdate(
-					propsDict);
-			will(returnValue(props));
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		MailboxPropertiesUpdate remote =
-				t.getRemoteProperties(txn, contact.getId());
-		assertTrue(mailboxPropertiesUpdateEqual(remote, props));
-	}
-
-	@Test
-	public void testGetRemotePropertiesReturnsNullBecauseNoUpdate()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-		Map<MessageId, BdfDictionary> emptyMessageMetadata =
-				new LinkedHashMap<>();
-
-		context.checking(new Expectations() {{
-			oneOf(db).getContact(txn, contact.getId());
-			will(returnValue(contact));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroup.getId());
-			will(returnValue(emptyMessageMetadata));
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		assertNull(t.getRemoteProperties(txn, contact.getId()));
-	}
-
-	@Test
-	public void testGetRemotePropertiesReturnsNullBecauseEmptyUpdate()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-		BdfDictionary metaDictionary = BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 1),
-				new BdfEntry(MSG_KEY_LOCAL, false)
-		);
-		Map<MessageId, BdfDictionary> messageMetadata = new LinkedHashMap<>();
-		MessageId fooUpdateId = new MessageId(getRandomId());
-		messageMetadata.put(fooUpdateId, metaDictionary);
-		BdfList fooUpdate = BdfList.of(1, emptyPropsDict);
-
-		context.checking(new Expectations() {{
-			oneOf(db).getContact(txn, contact.getId());
-			will(returnValue(contact));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroup.getId());
-			will(returnValue(messageMetadata));
-			oneOf(clientHelper).getMessageAsList(txn, fooUpdateId);
-			will(returnValue(fooUpdate));
-			oneOf(clientHelper).parseAndValidateMailboxPropertiesUpdate(
-					emptyPropsDict);
-			will(returnValue(null));
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		assertNull(t.getRemoteProperties(txn, contact.getId()));
-	}
-
-	@Test
-	public void testGetLocalProperties()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-		BdfDictionary metaDictionary = BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 1),
-				new BdfEntry(MSG_KEY_LOCAL, true)
-		);
-		Map<MessageId, BdfDictionary> messageMetadata = new LinkedHashMap<>();
-		MessageId fooUpdateId = new MessageId(getRandomId());
-		messageMetadata.put(fooUpdateId, metaDictionary);
-		BdfList fooUpdate = BdfList.of(1, propsDict);
-
-		context.checking(new Expectations() {{
-			oneOf(db).getContact(txn, contact.getId());
-			will(returnValue(contact));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroup.getId());
-			will(returnValue(messageMetadata));
-			oneOf(clientHelper).getMessageAsList(txn, fooUpdateId);
-			will(returnValue(fooUpdate));
-			oneOf(clientHelper).parseAndValidateMailboxPropertiesUpdate(
-					propsDict);
-			will(returnValue(props));
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		MailboxPropertiesUpdate local =
-				t.getLocalProperties(txn, contact.getId());
-		assertTrue(mailboxPropertiesUpdateEqual(local, props));
-	}
-
-	@Test
-	public void testGetLocalPropertiesReturnsNullBecauseNoUpdate()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-		Map<MessageId, BdfDictionary> emptyMessageMetadata =
-				new LinkedHashMap<>();
-
-		context.checking(new Expectations() {{
-			oneOf(db).getContact(txn, contact.getId());
-			will(returnValue(contact));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroup.getId());
-			will(returnValue(emptyMessageMetadata));
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		assertNull(t.getLocalProperties(txn, contact.getId()));
-	}
-
-	@Test
-	public void testGetLocalPropertiesReturnsNullBecauseEmptyUpdate()
-			throws Exception {
-		Transaction txn = new Transaction(null, false);
-		Contact contact = getContact();
-		Group contactGroup = getGroup(CLIENT_ID, MAJOR_VERSION);
-		BdfDictionary metaDictionary = BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, 1),
-				new BdfEntry(MSG_KEY_LOCAL, true)
-		);
-		Map<MessageId, BdfDictionary> messageMetadata = new LinkedHashMap<>();
-		MessageId fooUpdateId = new MessageId(getRandomId());
-		messageMetadata.put(fooUpdateId, metaDictionary);
-		BdfList fooUpdate = BdfList.of(1, emptyPropsDict);
-
-		context.checking(new Expectations() {{
-			oneOf(db).getContact(txn, contact.getId());
-			will(returnValue(contact));
-			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID,
-					MAJOR_VERSION, contact);
-			will(returnValue(contactGroup));
-			oneOf(clientHelper).getMessageMetadataAsDictionary(txn,
-					contactGroup.getId());
-			will(returnValue(messageMetadata));
-			oneOf(clientHelper).getMessageAsList(txn, fooUpdateId);
-			will(returnValue(fooUpdate));
-			oneOf(clientHelper).parseAndValidateMailboxPropertiesUpdate(
-					emptyPropsDict);
-			will(returnValue(null));
-		}});
-
-		MailboxPropertyManagerImpl t = createInstance();
-		assertNull(t.getLocalProperties(txn, contact.getId()));
-	}
-
-	private void expectStoreMessage(Transaction txn, GroupId g,
-			BdfDictionary properties, long version, boolean local)
-			throws Exception {
-		BdfList body = BdfList.of(version, properties);
-		Message message = getMessage(g);
-		long timestamp = message.getTimestamp();
-		BdfDictionary meta = BdfDictionary.of(
-				new BdfEntry(MSG_KEY_VERSION, version),
-				new BdfEntry(MSG_KEY_LOCAL, local)
-		);
-
-		context.checking(new Expectations() {{
-			oneOf(clock).currentTimeMillis();
-			will(returnValue(timestamp));
-			oneOf(clientHelper).createMessage(g, timestamp, body);
-			will(returnValue(message));
-			oneOf(clientHelper).addLocalMessage(txn, message, meta, true,
-					false);
-		}});
-	}
-}

bramble-core/src/test/java/org/briarproject/bramble/mailbox/MailboxPropertyValidatorTest.java

@@ -1,99 +0,0 @@
-package org.briarproject.bramble.mailbox;
-
-import org.briarproject.bramble.api.FormatException;
-import org.briarproject.bramble.api.client.ClientHelper;
-import org.briarproject.bramble.api.data.BdfDictionary;
-import org.briarproject.bramble.api.data.BdfEntry;
-import org.briarproject.bramble.api.data.BdfList;
-import org.briarproject.bramble.api.data.MetadataEncoder;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
-import org.briarproject.bramble.api.mailbox.MailboxFolderId;
-import org.briarproject.bramble.api.mailbox.MailboxPropertiesUpdate;
-import org.briarproject.bramble.api.mailbox.MailboxPropertyManager;
-import org.briarproject.bramble.api.sync.Group;
-import org.briarproject.bramble.api.sync.Message;
-import org.briarproject.bramble.api.system.Clock;
-import org.briarproject.bramble.test.BrambleMockTestCase;
-import org.jmock.Expectations;
-import org.junit.Test;
-
-import java.io.IOException;
-
-import static org.briarproject.bramble.test.TestUtils.getGroup;
-import static org.briarproject.bramble.test.TestUtils.getMessage;
-import static org.briarproject.bramble.test.TestUtils.getRandomId;
-import static org.junit.Assert.assertEquals;
-
-public class MailboxPropertyValidatorTest extends BrambleMockTestCase {
-
-	private final ClientHelper clientHelper = context.mock(ClientHelper.class);
-
-	private final BdfDictionary bdfDict;
-	private final MailboxPropertiesUpdate mailboxProps;
-	private final Group group;
-	private final Message message;
-	private final MailboxPropertyValidator mpv;
-
-	public MailboxPropertyValidatorTest() {
-		// Just dummies, clientHelper is mocked so our test is a bit shallow;
-		//  not testing
-		//  {@link ClientHelper#parseAndValidateMailboxPropertiesUpdate(BdfDictionary)}
-		bdfDict = BdfDictionary.of(new BdfEntry("foo", "bar"));
-		mailboxProps = new MailboxPropertiesUpdate("baz",
-				new MailboxAuthToken(getRandomId()),
-				new MailboxFolderId(getRandomId()),
-				new MailboxFolderId(getRandomId()));
-
-		group = getGroup(MailboxPropertyManager.CLIENT_ID,
-				MailboxPropertyManager.MAJOR_VERSION);
-		message = getMessage(group.getId());
-
-		MetadataEncoder metadataEncoder = context.mock(MetadataEncoder.class);
-		Clock clock = context.mock(Clock.class);
-		mpv = new MailboxPropertyValidator(clientHelper, metadataEncoder,
-				clock);
-	}
-
-	@Test
-	public void testValidateMessageBody() throws IOException {
-		BdfList body = BdfList.of(4, bdfDict);
-
-		context.checking(new Expectations() {{
-			oneOf(clientHelper).parseAndValidateMailboxPropertiesUpdate(
-					bdfDict);
-			will(returnValue(mailboxProps));
-		}});
-
-		BdfDictionary result =
-				mpv.validateMessage(message, group, body).getDictionary();
-		assertEquals(4, result.getLong("version").longValue());
-	}
-
-	@Test(expected = FormatException.class)
-	public void testValidateWrongVersionValue() throws IOException {
-		BdfList body = BdfList.of(-1, bdfDict);
-		mpv.validateMessage(message, group, body);
-	}
-
-	@Test(expected = FormatException.class)
-	public void testValidateWrongVersionType() throws IOException {
-		BdfList body = BdfList.of(bdfDict, bdfDict);
-		mpv.validateMessage(message, group, body);
-	}
-
-	@Test
-	public void testEmptyPropertiesReturnsNull() throws IOException {
-		BdfDictionary emptyBdfDict = new BdfDictionary();
-		BdfList body = BdfList.of(42, emptyBdfDict);
-
-		context.checking(new Expectations() {{
-			oneOf(clientHelper).parseAndValidateMailboxPropertiesUpdate(
-					emptyBdfDict);
-			will(returnValue(null));
-		}});
-
-		BdfDictionary result =
-				mpv.validateMessage(message, group, body).getDictionary();
-		assertEquals(42, result.getLong("version").longValue());
-	}
-}

bramble-core/src/test/java/org/briarproject/bramble/mailbox/MailboxSettingsManagerImplTest.java

@@ -1,29 +1,21 @@
 package org.briarproject.bramble.mailbox;
 
-import org.briarproject.bramble.api.contact.ContactId;
 import org.briarproject.bramble.api.db.Transaction;
-import org.briarproject.bramble.api.mailbox.MailboxAuthToken;
 import org.briarproject.bramble.api.mailbox.MailboxProperties;
 import org.briarproject.bramble.api.mailbox.MailboxSettingsManager;
 import org.briarproject.bramble.api.mailbox.MailboxStatus;
-import org.briarproject.bramble.api.mailbox.OwnMailboxConnectionStatusEvent;
 import org.briarproject.bramble.api.settings.Settings;
 import org.briarproject.bramble.api.settings.SettingsManager;
 import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.jmock.Expectations;
 import org.junit.Test;
 
-import java.util.Random;
-
 import static org.briarproject.bramble.mailbox.MailboxSettingsManagerImpl.SETTINGS_KEY_ATTEMPTS;
 import static org.briarproject.bramble.mailbox.MailboxSettingsManagerImpl.SETTINGS_KEY_LAST_ATTEMPT;
 import static org.briarproject.bramble.mailbox.MailboxSettingsManagerImpl.SETTINGS_KEY_LAST_SUCCESS;
 import static org.briarproject.bramble.mailbox.MailboxSettingsManagerImpl.SETTINGS_KEY_ONION;
 import static org.briarproject.bramble.mailbox.MailboxSettingsManagerImpl.SETTINGS_KEY_TOKEN;
 import static org.briarproject.bramble.mailbox.MailboxSettingsManagerImpl.SETTINGS_NAMESPACE;
-import static org.briarproject.bramble.mailbox.MailboxSettingsManagerImpl.SETTINGS_UPLOADS_NAMESPACE;
-import static org.briarproject.bramble.test.TestUtils.getRandomId;
-import static org.briarproject.bramble.test.TestUtils.hasEvent;
 import static org.briarproject.bramble.util.StringUtils.getRandomString;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
@@ -37,12 +29,8 @@ public class MailboxSettingsManagerImplTest extends BrambleMockTestCase {
 
 	private final MailboxSettingsManager manager =
 			new MailboxSettingsManagerImpl(settingsManager);
-	private final Random random = new Random();
 	private final String onion = getRandomString(64);
-	private final MailboxAuthToken token = new MailboxAuthToken(getRandomId());
-	private final ContactId contactId1 = new ContactId(random.nextInt());
-	private final ContactId contactId2 = new ContactId(random.nextInt());
-	private final ContactId contactId3 = new ContactId(random.nextInt());
+	private final String token = getRandomString(64);
 	private final long now = System.currentTimeMillis();
 	private final long lastAttempt = now - 1234;
 	private final long lastSuccess = now - 2345;
@@ -66,7 +54,7 @@ public class MailboxSettingsManagerImplTest extends BrambleMockTestCase {
 		Transaction txn = new Transaction(null, true);
 		Settings settings = new Settings();
 		settings.put(SETTINGS_KEY_ONION, onion);
-		settings.put(SETTINGS_KEY_TOKEN, token.toString());
+		settings.put(SETTINGS_KEY_TOKEN, token);
 
 		context.checking(new Expectations() {{
 			oneOf(settingsManager).getSettings(txn, SETTINGS_NAMESPACE);
@@ -75,7 +63,7 @@ public class MailboxSettingsManagerImplTest extends BrambleMockTestCase {
 
 		MailboxProperties properties = manager.getOwnMailboxProperties(txn);
 		assertNotNull(properties);
-		assertEquals(onion, properties.getBaseUrl());
+		assertEquals(onion, properties.getOnionAddress());
 		assertEquals(token, properties.getAuthToken());
 		assertTrue(properties.isOwner());
 	}
@@ -85,7 +73,7 @@ public class MailboxSettingsManagerImplTest extends BrambleMockTestCase {
 		Transaction txn = new Transaction(null, false);
 		Settings expectedSettings = new Settings();
 		expectedSettings.put(SETTINGS_KEY_ONION, onion);
-		expectedSettings.put(SETTINGS_KEY_TOKEN, token.toString());
+		expectedSettings.put(SETTINGS_KEY_TOKEN, token);
 		MailboxProperties properties =
 				new MailboxProperties(onion, token, true);
 
@@ -146,7 +134,6 @@ public class MailboxSettingsManagerImplTest extends BrambleMockTestCase {
 		}});
 
 		manager.recordSuccessfulConnection(txn, now);
-		hasEvent(txn, OwnMailboxConnectionStatusEvent.class);
 	}
 
 	@Test
@@ -179,53 +166,4 @@ public class MailboxSettingsManagerImplTest extends BrambleMockTestCase {
 
 		manager.recordFailedConnectionAttempt(txn, now);
 	}
-
-	@Test
-	public void testGettingPendingUploads() throws Exception {
-		Transaction txn = new Transaction(null, true);
-		Settings settings = new Settings();
-		settings.put(String.valueOf(contactId1.getInt()), onion);
-		settings.put(String.valueOf(contactId2.getInt()), token.toString());
-		settings.put(String.valueOf(contactId3.getInt()), "");
-
-		context.checking(new Expectations() {{
-			exactly(4).of(settingsManager)
-					.getSettings(txn, SETTINGS_UPLOADS_NAMESPACE);
-			will(returnValue(settings));
-		}});
-
-		String filename1 = manager.getPendingUpload(txn, contactId1);
-		assertEquals(onion, filename1);
-		String filename2 = manager.getPendingUpload(txn, contactId2);
-		assertNotNull(filename2);
-		assertEquals(token.toString(), filename2);
-		String filename3 = manager.getPendingUpload(txn, contactId3);
-		assertNull(filename3);
-		String filename4 =
-				manager.getPendingUpload(txn, new ContactId(random.nextInt()));
-		assertNull(filename4);
-	}
-
-	@Test
-	public void testSettingPendingUploads() throws Exception {
-		Transaction txn = new Transaction(null, false);
-
-		// setting a pending upload stores expected settings
-		Settings expectedSettings1 = new Settings();
-		expectedSettings1.put(String.valueOf(contactId1.getInt()), onion);
-		context.checking(new Expectations() {{
-			oneOf(settingsManager).mergeSettings(txn, expectedSettings1,
-					SETTINGS_UPLOADS_NAMESPACE);
-		}});
-		manager.setPendingUpload(txn, contactId1, onion);
-
-		// nulling a pending upload empties stored settings
-		Settings expectedSettings2 = new Settings();
-		expectedSettings2.put(String.valueOf(contactId2.getInt()), "");
-		context.checking(new Expectations() {{
-			oneOf(settingsManager).mergeSettings(txn, expectedSettings2,
-					SETTINGS_UPLOADS_NAMESPACE);
-		}});
-		manager.setPendingUpload(txn, contactId2, null);
-	}
 }

bramble-core/src/test/java/org/briarproject/bramble/plugin/PollerImplTest.java

@@ -25,7 +25,7 @@ import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.briarproject.bramble.test.ImmediateExecutor;
 import org.briarproject.bramble.test.RunAction;
 import org.jmock.Expectations;
-import org.jmock.imposters.ByteBuddyClassImposteriser;
+import org.jmock.lib.legacy.ClassImposteriser;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -69,7 +69,7 @@ public class PollerImplTest extends BrambleMockTestCase {
 	private PollerImpl poller;
 
 	public PollerImplTest() {
-		context.setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
+		context.setImposteriser(ClassImposteriser.INSTANCE);
 		random = context.mock(SecureRandom.class);
 	}
 

bramble-core/src/test/java/org/briarproject/bramble/plugin/tor/CircumventionProviderTest.java

@@ -1,72 +0,0 @@
-package org.briarproject.bramble.plugin.tor;
-
-import org.briarproject.bramble.test.BrambleTestCase;
-import org.junit.Test;
-
-import java.util.HashSet;
-import java.util.Set;
-
-import static java.util.Arrays.asList;
-import static java.util.Collections.singletonList;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BLOCKED;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BRIDGES;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType.DEFAULT_OBFS4;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType.MEEK;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType.NON_DEFAULT_OBFS4;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BridgeType.VANILLA;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.DEFAULT_BRIDGES;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.MEEK_BRIDGES;
-import static org.briarproject.bramble.plugin.tor.CircumventionProvider.NON_DEFAULT_BRIDGES;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class CircumventionProviderTest extends BrambleTestCase {
-
-	private final CircumventionProvider provider =
-			new CircumventionProviderImpl();
-
-	@Test
-	public void testInvariants() {
-		Set<String> blocked = new HashSet<>(asList(BLOCKED));
-		Set<String> bridges = new HashSet<>(asList(BRIDGES));
-		Set<String> defaultBridges = new HashSet<>(asList(DEFAULT_BRIDGES));
-		Set<String> nonDefaultBridges =
-				new HashSet<>(asList(NON_DEFAULT_BRIDGES));
-		Set<String> meekBridges = new HashSet<>(asList(MEEK_BRIDGES));
-		// BRIDGES should be a subset of BLOCKED
-		assertTrue(blocked.containsAll(bridges));
-		// BRIDGES should be the union of the bridge type sets
-		Set<String> union = new HashSet<>(defaultBridges);
-		union.addAll(nonDefaultBridges);
-		union.addAll(meekBridges);
-		assertEquals(bridges, union);
-		// The bridge type sets should not overlap
-		assertEmptyIntersection(defaultBridges, nonDefaultBridges);
-		assertEmptyIntersection(defaultBridges, meekBridges);
-		assertEmptyIntersection(nonDefaultBridges, meekBridges);
-	}
-
-	@Test
-	public void testGetBestBridgeType() {
-		for (String country : DEFAULT_BRIDGES) {
-			assertEquals(asList(DEFAULT_OBFS4, VANILLA),
-					provider.getSuitableBridgeTypes(country));
-		}
-		for (String country : NON_DEFAULT_BRIDGES) {
-			assertEquals(asList(NON_DEFAULT_OBFS4, VANILLA),
-					provider.getSuitableBridgeTypes(country));
-		}
-		for (String country : MEEK_BRIDGES) {
-			assertEquals(singletonList(MEEK),
-					provider.getSuitableBridgeTypes(country));
-		}
-		assertEquals(asList(DEFAULT_OBFS4, VANILLA),
-				provider.getSuitableBridgeTypes("ZZ"));
-	}
-
-	private <T> void assertEmptyIntersection(Set<T> a, Set<T> b) {
-		Set<T> intersection = new HashSet<>(a);
-		intersection.retainAll(b);
-		assertTrue(intersection.isEmpty());
-	}
-}

bramble-core/src/test/java/org/briarproject/bramble/properties/TransportPropertyManagerImplTest.java

@@ -8,9 +8,12 @@ import org.briarproject.bramble.api.data.BdfDictionary;
 import org.briarproject.bramble.api.data.BdfEntry;
 import org.briarproject.bramble.api.data.BdfList;
 import org.briarproject.bramble.api.data.MetadataParser;
+import org.briarproject.bramble.api.db.CommitAction;
 import org.briarproject.bramble.api.db.DatabaseComponent;
+import org.briarproject.bramble.api.db.EventAction;
 import org.briarproject.bramble.api.db.Metadata;
 import org.briarproject.bramble.api.db.Transaction;
+import org.briarproject.bramble.api.event.Event;
 import org.briarproject.bramble.api.plugin.TransportId;
 import org.briarproject.bramble.api.properties.TransportProperties;
 import org.briarproject.bramble.api.properties.event.RemoteTransportPropertiesUpdatedEvent;
@@ -45,7 +48,6 @@ import static org.briarproject.bramble.test.TestUtils.getContact;
 import static org.briarproject.bramble.test.TestUtils.getGroup;
 import static org.briarproject.bramble.test.TestUtils.getMessage;
 import static org.briarproject.bramble.test.TestUtils.getRandomId;
-import static org.briarproject.bramble.test.TestUtils.hasEvent;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
@@ -853,4 +855,15 @@ public class TransportPropertyManagerImplTest extends BrambleMockTestCase {
 					false);
 		}});
 	}
+
+	private boolean hasEvent(Transaction txn,
+			Class<? extends Event> eventClass) {
+		for (CommitAction action : txn.getActions()) {
+			if (action instanceof EventAction) {
+				Event event = ((EventAction) action).getEvent();
+				if (eventClass.isInstance(event)) return true;
+			}
+		}
+		return false;
+	}
 }