Bump version numbers for 1.2.17 release.

Make headless work on aarch64 and armhf (armv7)

Closes #1854

See merge request briar/briar!1376

bramble-android/build.gradle

@@ -11,8 +11,8 @@ android {
 	defaultConfig {
 		minSdkVersion 16
 		targetSdkVersion 29
-		versionCode 10216
-		versionName "1.2.16"
+		versionCode 10217
+		versionName "1.2.17"
 		consumerProguardFiles 'proguard-rules.txt'
 
 		testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

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

@@ -26,11 +26,6 @@ public interface IdentityManager {
 	 */
 	void registerIdentity(Identity i);
 
-	/**
-	 * Returns the cached local identity or loads it from the database.
-	 */
-	Identity getIdentity(Transaction txn) throws DbException;
-
 	/**
 	 * Returns the cached local identity or loads it from the database.
 	 */

bramble-api/src/main/java/org/briarproject/bramble/api/properties/TransportPropertyManager.java

@@ -74,13 +74,6 @@ public interface TransportPropertyManager {
 	TransportProperties getRemoteProperties(ContactId c, TransportId t)
 			throws DbException;
 
-	/**
-	 * Returns the remote transport properties for the given contact and
-	 * transport.
-	 */
-	TransportProperties getRemoteProperties(Transaction txn, ContactId c,
-			TransportId t) throws DbException;
-
 	/**
 	 * Merges the given properties with the existing local properties for the
 	 * given transport.

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

@@ -1,11 +1,12 @@
-package org.briarproject.bramble.api.crypto;
+package org.briarproject.bramble.crypto;
 
+import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 import java.security.GeneralSecurityException;
 
 @NotNullByDefault
-public interface AuthenticatedCipher {
+interface AuthenticatedCipher {
 
 	/**
 	 * Initializes this cipher for encryption or decryption with a key and an

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

@@ -6,7 +6,6 @@ import net.i2p.crypto.eddsa.KeyPairGenerator;
 
 import org.briarproject.bramble.api.crypto.AgreementPrivateKey;
 import org.briarproject.bramble.api.crypto.AgreementPublicKey;
-import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.CryptoComponent;
 import org.briarproject.bramble.api.crypto.DecryptionException;
 import org.briarproject.bramble.api.crypto.KeyPair;

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

@@ -1,6 +1,5 @@
 package org.briarproject.bramble.crypto;
 
-import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.CryptoComponent;
 import org.briarproject.bramble.api.crypto.KeyAgreementCrypto;
 import org.briarproject.bramble.api.crypto.PasswordStrengthEstimator;

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

@@ -1,6 +1,5 @@
 package org.briarproject.bramble.crypto;
 
-import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.crypto.StreamDecrypter;
 import org.briarproject.bramble.api.crypto.StreamDecrypterFactory;

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

@@ -1,7 +1,6 @@
 package org.briarproject.bramble.crypto;
 
 import org.briarproject.bramble.api.FormatException;
-import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.crypto.StreamDecrypter;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;

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

@@ -1,6 +1,5 @@
 package org.briarproject.bramble.crypto;
 
-import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.CryptoComponent;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.crypto.StreamEncrypter;

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

@@ -1,6 +1,5 @@
 package org.briarproject.bramble.crypto;
 
-import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.crypto.StreamEncrypter;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;

bramble-core/src/main/java/org/briarproject/bramble/crypto/XSalsa20Poly1305AuthenticatedCipher.java

@@ -1,6 +1,5 @@
 package org.briarproject.bramble.crypto;
 
-import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.spongycastle.crypto.DataLengthException;

bramble-core/src/main/java/org/briarproject/bramble/identity/IdentityManagerImpl.java

@@ -118,11 +118,6 @@ class IdentityManagerImpl implements IdentityManager, OpenDatabaseHook {
 		return cached.getLocalAuthor();
 	}
 
-	@Override
-	public Identity getIdentity(Transaction txn) throws DbException {
-		return getCachedIdentity(txn);
-	}
-
 	@Override
 	public LocalAuthor getLocalAuthor(Transaction txn) throws DbException {
 		return getCachedIdentity(txn).getLocalAuthor();

bramble-core/src/main/java/org/briarproject/bramble/properties/TransportPropertyManagerImpl.java

@@ -294,13 +294,7 @@ class TransportPropertyManagerImpl implements TransportPropertyManager,
 	public TransportProperties getRemoteProperties(ContactId c, TransportId t)
 			throws DbException {
 		return db.transactionWithResult(true, txn ->
-				getRemoteProperties(txn, c, t));
-	}
-
-	@Override
-	public TransportProperties getRemoteProperties(Transaction txn,
-			ContactId c, TransportId t) throws DbException {
-		return getRemoteProperties(txn, db.getContact(txn, c), t);
+				getRemoteProperties(txn, db.getContact(txn, c), t));
 	}
 
 	@Override

bramble-core/src/test/java/org/briarproject/bramble/crypto/StreamDecrypterImplTest.java

@@ -1,6 +1,5 @@
 package org.briarproject.bramble.crypto;
 
-import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.test.BrambleTestCase;
 import org.briarproject.bramble.test.TestUtils;

bramble-core/src/test/java/org/briarproject/bramble/crypto/StreamEncrypterImplTest.java

@@ -1,6 +1,5 @@
 package org.briarproject.bramble.crypto;
 
-import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.test.BrambleTestCase;
 import org.briarproject.bramble.test.TestUtils;

bramble-core/src/test/java/org/briarproject/bramble/crypto/TestAuthenticatedCipher.java

@@ -1,6 +1,5 @@
 package org.briarproject.bramble.crypto;
 
-import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 

bramble-core/src/test/java/org/briarproject/bramble/crypto/XSalsa20Poly1305AuthenticatedCipherTest.java

@@ -1,6 +1,5 @@
 package org.briarproject.bramble.crypto;
 
-import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.test.BrambleTestCase;
 import org.briarproject.bramble.util.StringUtils;

bramble-java/build.gradle

@@ -16,7 +16,7 @@ dependencies {
 	implementation fileTree(dir: 'libs', include: '*.jar')
 	implementation 'net.java.dev.jna:jna:4.5.2'
 	implementation 'net.java.dev.jna:jna-platform:4.5.2'
-	tor 'org.briarproject:tor:0.3.5.13@zip'
+	tor 'org.briarproject:tor:0.3.5.13-1@zip'
 	tor 'org.briarproject:obfs4proxy:0.0.12-dev-40245c4a@zip'
 
 	annotationProcessor 'com.google.dagger:dagger-compiler:2.24'

bramble-java/src/main/java/org/briarproject/bramble/plugin/tor/UnixTorPluginFactory.java

@@ -25,6 +25,7 @@ import javax.annotation.concurrent.Immutable;
 import javax.inject.Inject;
 import javax.net.SocketFactory;
 
+import static java.util.logging.Level.INFO;
 import static java.util.logging.Logger.getLogger;
 import static org.briarproject.bramble.util.OsUtils.isLinux;
 
@@ -96,8 +97,15 @@ public class UnixTorPluginFactory implements DuplexPluginFactory {
 		String architecture = null;
 		if (isLinux()) {
 			String arch = System.getProperty("os.arch");
+			if (LOG.isLoggable(INFO)) {
+				LOG.info("System's os.arch is " + arch);
+			}
 			if (arch.equals("amd64")) {
 				architecture = "linux-x86_64";
+			} else if (arch.equals("aarch64")) {
+				architecture = "linux-aarch64";
+			} else if (arch.equals("arm")) {
+				architecture = "linux-armhf";
 			}
 		}
 		if (architecture == null) {
@@ -105,6 +113,10 @@ public class UnixTorPluginFactory implements DuplexPluginFactory {
 			return null;
 		}
 
+		if (LOG.isLoggable(INFO)) {
+			LOG.info("The selected architecture for Tor is " + architecture);
+		}
+
 		Backoff backoff = backoffFactory.createBackoff(MIN_POLLING_INTERVAL,
 				MAX_POLLING_INTERVAL, BACKOFF_BASE);
 		TorRendezvousCrypto torRendezvousCrypto = new TorRendezvousCryptoImpl();

bramble-java/witness.gradle

@@ -24,7 +24,7 @@ dependencyVerification {
         'org.apache.ant:ant:1.9.4:ant-1.9.4.jar:649ae0730251de07b8913f49286d46bba7b92d47c5f332610aa426c4f02161d8',
         'org.beanshell:bsh:1.3.0:bsh-1.3.0.jar:9b04edc75d19db54f1b4e8b5355e9364384c6cf71eb0a1b9724c159d779879f8',
         'org.briarproject:obfs4proxy:0.0.12-dev-40245c4a:obfs4proxy-0.0.12-dev-40245c4a.zip:172029e7058b3a83ac93ac4991a44bf76e16ce8d46f558f5836d57da3cb3a766',
-        'org.briarproject:tor:0.3.5.13:tor-0.3.5.13.zip:1c5f0b821ee2aadb0ea04aa96caab3ca0a08370cce8de81c2dfe04d172f8a2a0',
+        'org.briarproject:tor:0.3.5.13-1:tor-0.3.5.13-1.zip:ef35c16bf8dc1f4c75ed71d9f55e4514f383d124ec96b859aca647c990927c99',
         '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.codehaus.mojo:animal-sniffer-annotations:1.17:animal-sniffer-annotations-1.17.jar:92654f493ecfec52082e76354f0ebf87648dc3d5cec2e3c3cdb947c016747a53',

briar-android/build.gradle

@@ -22,8 +22,8 @@ android {
 	defaultConfig {
 		minSdkVersion 16
 		targetSdkVersion 29
-		versionCode 10216
-		versionName "1.2.16"
+		versionCode 10217
+		versionName "1.2.17"
 		applicationId "org.briarproject.briar.android"
 
 		vectorDrawables.useSupportLibrary = true
@@ -95,13 +95,13 @@ dependencies {
 	implementation project(path: ':bramble-core', configuration: 'default')
 	implementation project(':bramble-android')
 
+	implementation 'androidx.fragment:fragment:1.3.0'
 	implementation 'androidx.preference:preference:1.1.1'
 	implementation 'androidx.exifinterface:exifinterface:1.3.1'
 	implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
 	implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
 	implementation 'com.google.android.material:material:1.2.1'
 	implementation 'androidx.recyclerview:recyclerview-selection:1.1.0-rc03'
-	implementation 'org.magmacollective.darkcrystal:dark-crystal-secret-sharing-wrapper:1.1.0'
 
 	implementation 'info.guardianproject.panic:panic:1.0'
 	implementation 'info.guardianproject.trustedintents:trustedintents:0.2'

briar-android/src/main/AndroidManifest.xml

@@ -134,34 +134,6 @@
 			</intent-filter>
 		</activity>
 
-		<activity
-			android:name="org.briarproject.briar.android.account.NewOrRecoverActivity"
-			android:label="@string/activity_name_new_or_recover_account"
-			android:parentActivityName="org.briarproject.briar.android.login.StartupActivity">
-			<meta-data
-				android:name="android.support.PARENT_ACTIVITY"
-				android:value="org.briarproject.briar.android.login.StartupActivity" />
-		</activity>
-
-		<activity
-			android:name="org.briarproject.briar.android.socialbackup.DistributedBackupActivity"
-			android:label="@string/activity_name_distributed_backup"
-			android:parentActivityName="org.briarproject.briar.android.settings.SettingsActivity">
-			<meta-data
-				android:name="android.support.PARENT_ACTIVITY"
-				android:value="org.briarproject.briar.android.settings.SettingsActivity" />
-		</activity>
-
-		<activity
-			android:name="org.briarproject.briar.android.socialbackup.OldDistributedBackupActivity"
-			android:label="@string/activity_name_old_distributed_backup"
-			android:parentActivityName="org.briarproject.briar.android.settings.SettingsActivity">
-			<meta-data
-				android:name="android.support.PARENT_ACTIVITY"
-				android:value="org.briarproject.briar.android.settings.SettingsActivity" />
-		</activity>
-
-
 		<activity
 			android:name="org.briarproject.briar.android.conversation.ConversationActivity"
 			android:label="@string/app_name"

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

@@ -13,7 +13,6 @@ import org.briarproject.bramble.api.contact.ContactExchangeManager;
 import org.briarproject.bramble.api.contact.ContactManager;
 import org.briarproject.bramble.api.crypto.CryptoExecutor;
 import org.briarproject.bramble.api.crypto.PasswordStrengthEstimator;
-import org.briarproject.bramble.api.db.DatabaseComponent;
 import org.briarproject.bramble.api.db.DatabaseExecutor;
 import org.briarproject.bramble.api.db.TransactionManager;
 import org.briarproject.bramble.api.event.EventBus;
@@ -60,9 +59,7 @@ import org.briarproject.briar.api.privategroup.PrivateGroupFactory;
 import org.briarproject.briar.api.privategroup.PrivateGroupManager;
 import org.briarproject.briar.api.privategroup.invitation.GroupInvitationFactory;
 import org.briarproject.briar.api.privategroup.invitation.GroupInvitationManager;
-import org.briarproject.briar.api.socialbackup.SocialBackupManager;
 import org.briarproject.briar.api.test.TestDataCreator;
-import org.briarproject.briar.socialbackup.SocialBackupManagerImpl_Factory;
 
 import java.util.concurrent.Executor;
 
@@ -187,9 +184,6 @@ public interface AndroidComponent
 
 	Thread.UncaughtExceptionHandler exceptionHandler();
 
-	SocialBackupManager socialBackupManager();
-    DatabaseComponent databaseComponent();
-
 	void inject(SignInReminderReceiver briarService);
 
 	void inject(BriarService briarService);

briar-android/src/main/java/org/briarproject/briar/android/account/DozeFragment.java

@@ -33,7 +33,6 @@ public class DozeFragment extends SetupFragment
 	private DozeView dozeView;
 	private HuaweiView huaweiView;
 	private Button next;
-	private ProgressBar progressBar;
 	private boolean secondAttempt = false;
 
 	public static DozeFragment newInstance() {
@@ -58,11 +57,19 @@ public class DozeFragment extends SetupFragment
 		huaweiView = v.findViewById(R.id.huaweiView);
 		huaweiView.setOnCheckedChangedListener(this);
 		next = v.findViewById(R.id.next);
-		progressBar = v.findViewById(R.id.progress);
+		ProgressBar progressBar = v.findViewById(R.id.progress);
 
 		dozeView.setOnButtonClickListener(this::askForDozeWhitelisting);
 		next.setOnClickListener(this);
 
+		viewModel.getIsCreatingAccount()
+				.observe(getViewLifecycleOwner(), isCreatingAccount -> {
+					if (isCreatingAccount) {
+						next.setVisibility(INVISIBLE);
+						progressBar.setVisibility(VISIBLE);
+					}
+				});
+
 		return v;
 	}
 
@@ -104,15 +111,6 @@ public class DozeFragment extends SetupFragment
 
 	@Override
 	public void onClick(View view) {
-		setNextClicked();
 		viewModel.dozeExceptionConfirmed();
 	}
-
-	@Override
-	void setNextClicked() {
-		super.setNextClicked();
-
-		next.setVisibility(INVISIBLE);
-		progressBar.setVisibility(VISIBLE);
-	}
 }

briar-android/src/main/java/org/briarproject/briar/android/account/NewOrRecoverActivity.java

@@ -1,47 +0,0 @@
-package org.briarproject.briar.android.account;
-
-import android.content.Intent;
-import android.os.Bundle;
-
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.activity.BaseActivity;
-import org.briarproject.briar.android.fragment.BaseFragment;
-
-import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TASK;
-import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TOP;
-import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
-import static android.content.Intent.FLAG_ACTIVITY_TASK_ON_HOME;
-
-public class NewOrRecoverActivity extends BaseActivity implements
-		BaseFragment.BaseFragmentListener, SetupNewAccountChosenListener {
-
-	@Override
-	public void injectActivity(ActivityComponent component) {
-		component.inject(this);
-	}
-
-	@Override
-	public void onCreate(Bundle state) {
-		super.onCreate(state);
-		// fade-in after splash screen instead of default animation
-		overridePendingTransition(R.anim.fade_in, R.anim.fade_out);
-        setContentView(R.layout.activity_fragment_container);
-		NewOrRecoverFragment fragment = NewOrRecoverFragment.newInstance();
-		showInitialFragment(fragment);
-	}
-
-	@Override
-	public void setupNewAccountChosen () {
-		finish();
-		Intent i = new Intent(this, SetupActivity.class);
-		i.addFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TOP |
-				FLAG_ACTIVITY_CLEAR_TASK | FLAG_ACTIVITY_TASK_ON_HOME);
-		startActivity(i);
-	}
-
-	@Override
-	public void runOnDbThread(Runnable runnable) {
-
-	}
-}

briar-android/src/main/java/org/briarproject/briar/android/account/NewOrRecoverFragment.java

@@ -1,63 +0,0 @@
-package org.briarproject.briar.android.account;
-
-import android.content.Context;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.Button;
-
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.fragment.BaseFragment;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-
-public class NewOrRecoverFragment extends BaseFragment {
-
-	public static final String TAG = NewOrRecoverFragment.class.getName();
-
-	protected SetupNewAccountChosenListener listener;
-
-	public static NewOrRecoverFragment newInstance() {
-		Bundle bundle = new Bundle();
-		NewOrRecoverFragment fragment = new NewOrRecoverFragment();
-		fragment.setArguments(bundle);
-		return fragment;
-	}
-	@Override
-	public void onCreate(@Nullable Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		requireActivity().setTitle(R.string.setup_title);
-	}
-
-	@Nullable
-	@Override
-	public View onCreateView(@NonNull LayoutInflater inflater, @Nullable
-			ViewGroup container, @Nullable Bundle savedInstanceState) {
-		View view = inflater.inflate(R.layout.fragment_new_or_recover,
-				container, false);
-		Button button = view.findViewById(R.id.buttonSetupNewAccount);
-		button.setOnClickListener(e -> {
-			listener.setupNewAccountChosen();
-		});
-		return view;
-	}
-
-	@Override
-	public void onAttach(Context context) {
-		super.onAttach(context);
-		listener = (SetupNewAccountChosenListener) context;
-	}
-
-	@Override
-	public String getUniqueTag() {
-		return TAG;
-	}
-
-	@Override
-	public void injectFragment(ActivityComponent component) {
-		component.inject(this);
-	}
-}

briar-android/src/main/java/org/briarproject/briar/android/account/SetPasswordFragment.java

@@ -38,7 +38,6 @@ public class SetPasswordFragment extends SetupFragment {
 	private TextInputEditText passwordConfirmation;
 	private StrengthMeter strengthMeter;
 	private Button nextButton;
-	private ProgressBar progressBar;
 
 	public static SetPasswordFragment newInstance() {
 		return new SetPasswordFragment();
@@ -64,7 +63,7 @@ public class SetPasswordFragment extends SetupFragment {
 				v.findViewById(R.id.password_confirm_wrapper);
 		passwordConfirmation = v.findViewById(R.id.password_confirm);
 		nextButton = v.findViewById(R.id.next);
-		progressBar = v.findViewById(R.id.progress);
+		ProgressBar progressBar = v.findViewById(R.id.progress);
 
 		passwordEntry.addTextChangedListener(this);
 		passwordConfirmation.addTextChangedListener(this);
@@ -75,6 +74,17 @@ public class SetPasswordFragment extends SetupFragment {
 			passwordConfirmation.setImeOptions(IME_ACTION_DONE);
 		}
 
+		viewModel.getIsCreatingAccount()
+				.observe(getViewLifecycleOwner(), isCreatingAccount -> {
+					if (isCreatingAccount) {
+						nextButton.setVisibility(INVISIBLE);
+						progressBar.setVisibility(VISIBLE);
+						// this also avoids the keyboard popping up
+						passwordEntry.setFocusable(false);
+						passwordConfirmation.setFocusable(false);
+					}
+				});
+
 		return v;
 	}
 
@@ -116,20 +126,6 @@ public class SetPasswordFragment extends SetupFragment {
 		IBinder token = passwordEntry.getWindowToken();
 		Object o = getContext().getSystemService(INPUT_METHOD_SERVICE);
 		((InputMethodManager) o).hideSoftInputFromWindow(token, 0);
-
-		setNextClicked();
 		viewModel.setPassword(passwordEntry.getText().toString());
 	}
-
-	@Override
-	void setNextClicked() {
-		super.setNextClicked();
-
-		passwordEntry.setFocusable(false);
-		passwordConfirmation.setFocusable(false);
-		if (!viewModel.needToShowDozeFragment()) {
-			nextButton.setVisibility(INVISIBLE);
-			progressBar.setVisibility(VISIBLE);
-		}
-	}
 }

briar-android/src/main/java/org/briarproject/briar/android/account/SetupFragment.java

@@ -7,7 +7,6 @@ import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
-import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.TextView;
 import android.widget.TextView.OnEditorActionListener;
@@ -19,8 +18,6 @@ import org.briarproject.briar.android.fragment.BaseFragment;
 
 import javax.inject.Inject;
 
-import androidx.annotation.CallSuper;
-import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.lifecycle.ViewModelProvider;
 
@@ -35,7 +32,6 @@ abstract class SetupFragment extends BaseFragment implements TextWatcher,
 		OnEditorActionListener, OnClickListener {
 
 	private final static String STATE_KEY_CLICKED = "setupFragmentClicked";
-	private boolean clicked = false;
 
 	@Inject
 	ViewModelProvider.Factory viewModelFactory;
@@ -48,27 +44,6 @@ abstract class SetupFragment extends BaseFragment implements TextWatcher,
 				.get(SetupViewModel.class);
 	}
 
-	@Override
-	public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
-		if (savedInstanceState != null) {
-			clicked = savedInstanceState.getBoolean(STATE_KEY_CLICKED);
-		}
-		if (clicked) {
-			setNextClicked();
-		}
-	}
-
-	@Override
-	public void onSaveInstanceState(@NonNull Bundle outState) {
-		super.onSaveInstanceState(outState);
-		outState.putBoolean(STATE_KEY_CLICKED, clicked);
-	}
-
-	@CallSuper
-	void setNextClicked() {
-		this.clicked = true;
-	}
-
 	@Override
 	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
 		inflater.inflate(R.menu.help_action, menu);
@@ -114,5 +89,4 @@ abstract class SetupFragment extends BaseFragment implements TextWatcher,
 	public void afterTextChanged(Editable editable) {
 		// noop
 	}
-
 }

briar-android/src/main/java/org/briarproject/briar/android/account/SetupNewAccountChosenListener.java

@@ -1,8 +0,0 @@
-package org.briarproject.briar.android.account;
-
-import androidx.annotation.UiThread;
-
-public interface SetupNewAccountChosenListener {
-	@UiThread
-	void setupNewAccountChosen();
-}

briar-android/src/main/java/org/briarproject/briar/android/account/SetupViewModel.java

@@ -17,6 +17,8 @@ import javax.inject.Inject;
 
 import androidx.annotation.Nullable;
 import androidx.lifecycle.AndroidViewModel;
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
 
 import static java.util.logging.Logger.getLogger;
 import static org.briarproject.briar.android.account.SetupViewModel.State.AUTHOR_NAME;
@@ -36,6 +38,8 @@ class SetupViewModel extends AndroidViewModel {
 	@Nullable
 	private String authorName, password;
 	private final MutableLiveEvent<State> state = new MutableLiveEvent<>();
+	private final MutableLiveData<Boolean> isCreatingAccount =
+			new MutableLiveData<>(false);
 
 	private final AccountManager accountManager;
 	private final Executor ioExecutor;
@@ -67,6 +71,10 @@ class SetupViewModel extends AndroidViewModel {
 		return state;
 	}
 
+	LiveData<Boolean> getIsCreatingAccount() {
+		return isCreatingAccount;
+	}
+
 	void setAuthorName(String authorName) {
 		this.authorName = authorName;
 		state.setEvent(SET_PASSWORD);
@@ -97,6 +105,7 @@ class SetupViewModel extends AndroidViewModel {
 	private void createAccount() {
 		if (authorName == null) throw new IllegalStateException();
 		if (password == null) throw new IllegalStateException();
+		isCreatingAccount.setValue(true);
 		ioExecutor.execute(() -> {
 			if (accountManager.createAccount(authorName, password)) {
 				LOG.info("Created account");

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

@@ -2,13 +2,10 @@ package org.briarproject.briar.android.activity;
 
 import android.app.Activity;
 
-import org.briarproject.bramble.api.db.DatabaseComponent;
 import org.briarproject.briar.android.AndroidComponent;
 import org.briarproject.briar.android.StartupFailureActivity;
 import org.briarproject.briar.android.account.AuthorNameFragment;
 import org.briarproject.briar.android.account.DozeFragment;
-import org.briarproject.briar.android.account.NewOrRecoverActivity;
-import org.briarproject.briar.android.account.NewOrRecoverFragment;
 import org.briarproject.briar.android.account.SetPasswordFragment;
 import org.briarproject.briar.android.account.SetupActivity;
 import org.briarproject.briar.android.account.UnlockActivity;
@@ -80,31 +77,20 @@ import org.briarproject.briar.android.sharing.ShareBlogFragment;
 import org.briarproject.briar.android.sharing.ShareForumActivity;
 import org.briarproject.briar.android.sharing.ShareForumFragment;
 import org.briarproject.briar.android.sharing.SharingModule;
-//import org.briarproject.briar.android.socialbackup.CustodianDisplayFragment;
-import org.briarproject.briar.android.socialbackup.CustodianSelectorFragment;
-import org.briarproject.briar.android.socialbackup.DistributedBackupActivity;
-import org.briarproject.briar.android.socialbackup.ExistingBackupFragment;
-import org.briarproject.briar.android.socialbackup.OldDistributedBackupActivity;
-import org.briarproject.briar.android.socialbackup.ShardsSentFragment;
-import org.briarproject.briar.android.socialbackup.ThresholdSelectorFragment;
-import org.briarproject.briar.android.socialbackup.creation.CreateBackupController;
-import org.briarproject.briar.android.socialbackup.creation.CreateBackupModule;
 import org.briarproject.briar.android.splash.SplashScreenActivity;
 import org.briarproject.briar.android.test.TestDataActivity;
-import org.h2.util.New;
 
 import dagger.Component;
 
 @ActivityScope
-@Component(modules ={
+@Component(modules = {
 		ActivityModule.class,
 		BlogModule.class,
 		CreateGroupModule.class,
 		GroupInvitationModule.class,
 		GroupMemberModule.class,
 		GroupRevealModule.class,
-		SharingModule.SharingLegacyModule.class,
-		CreateBackupModule.class
+		SharingModule.SharingLegacyModule.class
 }, dependencies = AndroidComponent.class)
 public interface ActivityComponent {
 
@@ -196,8 +182,6 @@ public interface ActivityComponent {
 
 	void inject(CrashReportActivity crashReportActivity);
 
-	void inject(NewOrRecoverActivity newOrRecoverActivity);
-
 	// Fragments
 
 	void inject(AuthorNameFragment fragment);
@@ -254,21 +238,4 @@ public interface ActivityComponent {
 
 	void inject(ConfirmAvatarDialogFragment fragment);
 
-	void inject(ThresholdSelectorFragment thresholdSelectorFragment);
-
-	void inject(DistributedBackupActivity distributedBackupActivity);
-//    void inject(CreateBackupController createBackupController);
-//	void inject(CustodianDisplayFragment custodianDisplayFragment);
-
-	void inject(DatabaseComponent databaseComponent);
-
-	void inject(CustodianSelectorFragment custodianSelectorFragment);
-
-	void inject(ShardsSentFragment shardsSentFragment);
-
-	void inject(ExistingBackupFragment existingBackupFragment);
-
-	void inject(NewOrRecoverFragment newOrRecoverFragment);
-
-	void inject(OldDistributedBackupActivity oldDistributedBackupActivity);
 }

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactListFragment.java

@@ -34,7 +34,6 @@ import io.github.kobakei.materialfabspeeddial.FabSpeedDial;
 import io.github.kobakei.materialfabspeeddial.FabSpeedDial.OnMenuItemClickListener;
 
 import static com.google.android.material.snackbar.BaseTransientBottomBar.LENGTH_INDEFINITE;
-import static org.briarproject.bramble.api.nullsafety.NullSafety.requireNonNull;
 import static org.briarproject.briar.android.conversation.ConversationActivity.CONTACT_ID;
 
 @MethodsNotNullByDefault
@@ -102,7 +101,8 @@ public class ContactListFragment extends BaseFragment
 				.observe(getViewLifecycleOwner(), result -> {
 					result.onError(this::handleException).onSuccess(items -> {
 						adapter.submitList(items);
-						if (requireNonNull(items).size() == 0) list.showData();
+						// TODO remove when BriarRecyclerView was adapted
+						list.showData();
 					});
 				});
 		viewModel.getHasPendingContacts()

briar-android/src/main/java/org/briarproject/briar/android/contactselection/BaseContactSelectorFragment.java

@@ -56,11 +56,8 @@ public abstract class BaseContactSelectorFragment<I extends SelectableContactIte
 
 		Bundle args = requireArguments();
 		byte[] b = args.getByteArray(GROUP_ID);
-//		if (b == null) throw new IllegalStateException("No GroupId");
-		// TODO find what the groupId should be when selecting custodians
-		if (b != null) {
-			groupId = new GroupId(b);
-		}
+		if (b == null) throw new IllegalStateException("No GroupId");
+		groupId = new GroupId(b);
 	}
 
 	@Override

briar-android/src/main/java/org/briarproject/briar/android/contactselection/ContactSelectorFragment.java

@@ -18,7 +18,7 @@ public abstract class ContactSelectorFragment extends
 
 	public static final String TAG = ContactSelectorFragment.class.getName();
 
-	protected Menu menu;
+	private Menu menu;
 
 	@Override
 	protected ContactSelectorAdapter getAdapter(Context context,

briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageActivity.java

@@ -24,10 +24,7 @@ import org.briarproject.briar.android.attachment.AttachmentItem;
 import org.briarproject.briar.android.util.BriarSnackbarBuilder;
 import org.briarproject.briar.android.view.PullDownLayout;
 
-import java.text.SimpleDateFormat;
-import java.util.Date;
 import java.util.List;
-import java.util.Locale;
 
 import javax.inject.Inject;
 
@@ -293,13 +290,10 @@ public class ImageActivity extends BriarActivity
 
 	@RequiresApi(api = 19)
 	private Intent getCreationIntent() {
-		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss",
-				Locale.getDefault());
-		String fileName = sdf.format(new Date());
 		Intent intent = new Intent(ACTION_CREATE_DOCUMENT);
 		intent.addCategory(CATEGORY_OPENABLE);
 		intent.setType(getVisibleAttachment().getMimeType());
-		intent.putExtra(EXTRA_TITLE, fileName);
+		intent.putExtra(EXTRA_TITLE, viewModel.getFileName());
 		return intent;
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageViewModel.java

@@ -225,8 +225,8 @@ public class ImageViewModel extends DbViewModel implements EventListener {
 		});
 	}
 
-	private String getFileName() {
-		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss",
+	String getFileName() {
+		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd",
 				Locale.getDefault());
 		return sdf.format(new Date());
 	}

briar-android/src/main/java/org/briarproject/briar/android/fragment/BaseFragment.java

@@ -10,9 +10,8 @@ import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.briar.android.DestroyableContext;
 import org.briarproject.briar.android.activity.ActivityComponent;
 
-import javax.annotation.Nullable;
-
 import androidx.annotation.CallSuper;
+import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
@@ -47,13 +46,11 @@ public abstract class BaseFragment extends Fragment
 
 	@Override
 	public boolean onOptionsItemSelected(MenuItem item) {
-		switch (item.getItemId()) {
-			case android.R.id.home:
-				listener.onBackPressed();
-				return true;
-			default:
-				return super.onOptionsItemSelected(item);
+		if (item.getItemId() == android.R.id.home) {
+			requireActivity().onBackPressed();
+			return true;
 		}
+		return super.onOptionsItemSelected(item);
 	}
 
 	@UiThread
@@ -79,6 +76,7 @@ public abstract class BaseFragment extends Fragment
 		void handleException(Exception e);
 	}
 
+	@Deprecated
 	@CallSuper
 	@Override
 	public void runOnUiThreadUnlessDestroyed(Runnable r) {

briar-android/src/main/java/org/briarproject/briar/android/keyagreement/KeyAgreementActivity.java

@@ -411,6 +411,8 @@ public abstract class KeyAgreementActivity extends BriarActivity implements
 	@UiThread
 	public void onRequestPermissionsResult(int requestCode,
 			String[] permissions, int[] grantResults) {
+		super.onRequestPermissionsResult(requestCode, permissions,
+				grantResults);
 		if (requestCode != REQUEST_PERMISSION_CAMERA_LOCATION)
 			throw new AssertionError();
 		if (gotPermission(CAMERA, permissions, grantResults)) {

briar-android/src/main/java/org/briarproject/briar/android/login/StartupActivity.java

@@ -7,7 +7,6 @@ import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
 import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.BriarService;
-import org.briarproject.briar.android.account.NewOrRecoverActivity;
 import org.briarproject.briar.android.account.SetupActivity;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.activity.BaseActivity;
@@ -108,7 +107,7 @@ public class StartupActivity extends BaseActivity implements
 	private void onAccountDeleted() {
 		setResult(RESULT_CANCELED);
 		finish();
-		Intent i = new Intent(this, NewOrRecoverActivity.class);
+		Intent i = new Intent(this, SetupActivity.class);
 		i.addFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TOP |
 				FLAG_ACTIVITY_CLEAR_TASK | FLAG_ACTIVITY_TASK_ON_HOME);
 		startActivity(i);

briar-android/src/main/java/org/briarproject/briar/android/navdrawer/NavDrawerActivity.java

@@ -49,14 +49,12 @@ import androidx.annotation.DrawableRes;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
-import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.ActionBarDrawerToggle;
 import androidx.appcompat.widget.Toolbar;
 import androidx.core.app.ActivityCompat;
 import androidx.core.content.ContextCompat;
 import androidx.drawerlayout.widget.DrawerLayout;
 import androidx.fragment.app.FragmentManager;
-import androidx.fragment.app.FragmentTransaction;
 import androidx.lifecycle.MutableLiveData;
 import androidx.lifecycle.ViewModelProvider;
 import androidx.lifecycle.ViewModelProviders;
@@ -67,9 +65,7 @@ import static android.view.View.GONE;
 import static android.view.View.VISIBLE;
 import static androidx.core.view.GravityCompat.START;
 import static androidx.drawerlayout.widget.DrawerLayout.LOCK_MODE_LOCKED_CLOSED;
-import static androidx.fragment.app.FragmentManager.POP_BACK_STACK_INCLUSIVE;
 import static androidx.lifecycle.Lifecycle.State.STARTED;
-import static java.util.Objects.requireNonNull;
 import static java.util.logging.Logger.getLogger;
 import static org.briarproject.bramble.api.lifecycle.LifecycleManager.LifecycleState.RUNNING;
 import static org.briarproject.bramble.api.plugin.Plugin.State.ACTIVE;
@@ -146,7 +142,7 @@ public class NavDrawerActivity extends BriarActivity implements
 			if (ask) showDozeDialog(getString(R.string.setup_doze_intro));
 		});
 
-		Toolbar toolbar = findViewById(R.id.toolbar);
+		Toolbar toolbar = setUpCustomToolbar(false);
 		drawerLayout = findViewById(R.id.drawer_layout);
 		navigation = findViewById(R.id.navigation);
 		GridView transportsView = findViewById(R.id.transportsView);
@@ -156,11 +152,6 @@ public class NavDrawerActivity extends BriarActivity implements
 			startActivity(new Intent(this, TransportsActivity.class));
 		});
 
-		setSupportActionBar(toolbar);
-		ActionBar actionBar = requireNonNull(getSupportActionBar());
-		actionBar.setDisplayHomeAsUpEnabled(true);
-		actionBar.setHomeButtonEnabled(true);
-
 		drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar,
 				R.string.nav_drawer_open_description,
 				R.string.nav_drawer_close_description) {
@@ -184,9 +175,6 @@ public class NavDrawerActivity extends BriarActivity implements
 
 		if (lifecycleManager.getLifecycleState().isAfter(RUNNING)) {
 			showSignOutFragment();
-		} else if (state == null) {
-			startFragment(ContactListFragment.newInstance(),
-					R.id.nav_btn_contacts);
 		}
 		if (state == null) {
 			// do not call this again when there's existing state
@@ -276,7 +264,6 @@ public class NavDrawerActivity extends BriarActivity implements
 	@Override
 	public boolean onNavigationItemSelected(@NonNull MenuItem item) {
 		drawerLayout.closeDrawer(START);
-		clearBackStack();
 		if (item.getItemId() == R.id.nav_btn_lock) {
 			lockManager.setLocked(true);
 			ActivityCompat.finishAfterTransition(this);
@@ -296,8 +283,8 @@ public class NavDrawerActivity extends BriarActivity implements
 			FragmentManager fm = getSupportFragmentManager();
 			if (fm.findFragmentByTag(SignOutFragment.TAG) != null) {
 				finish();
-			} else if (fm.getBackStackEntryCount() == 0
-					&& fm.findFragmentByTag(ContactListFragment.TAG) == null) {
+			} else if (fm.getBackStackEntryCount() == 0 &&
+					fm.findFragmentByTag(ContactListFragment.TAG) == null) {
 				// don't start fragments in the wrong part of lifecycle (#1904)
 				if (!getLifecycle().getCurrentState().isAtLeast(STARTED)) {
 					LOG.warning("Tried to start contacts fragment in state " +
@@ -346,30 +333,12 @@ public class NavDrawerActivity extends BriarActivity implements
 		startFragment(fragment);
 	}
 
-	private void startFragment(BaseFragment fragment) {
-		if (getSupportFragmentManager().getBackStackEntryCount() == 0)
-			startFragment(fragment, false);
-		else startFragment(fragment, true);
-	}
-
-	private void startFragment(BaseFragment fragment,
-			boolean isAddedToBackStack) {
-		FragmentTransaction trans =
-				getSupportFragmentManager().beginTransaction()
-						.setCustomAnimations(R.anim.fade_in,
-								R.anim.fade_out, R.anim.fade_in,
-								R.anim.fade_out)
-						.replace(R.id.fragmentContainer, fragment,
-								fragment.getUniqueTag());
-		if (isAddedToBackStack) {
-			trans.addToBackStack(fragment.getUniqueTag());
-		}
-		trans.commit();
-	}
-
-	private void clearBackStack() {
-		getSupportFragmentManager().popBackStackImmediate(null,
-				POP_BACK_STACK_INCLUSIVE);
+	private void startFragment(BaseFragment f) {
+		getSupportFragmentManager().beginTransaction()
+				.setCustomAnimations(R.anim.fade_in, R.anim.fade_out,
+						R.anim.fade_in, R.anim.fade_out)
+				.replace(R.id.fragmentContainer, f, f.getUniqueTag())
+				.commit();
 	}
 
 	@Override

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

@@ -9,10 +9,13 @@ import android.view.View;
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import com.bumptech.glide.load.engine.DiskCacheStrategy;
+
 import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
 import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.BaseActivity;
+import org.briarproject.briar.android.conversation.glide.GlideApp;
 
 import javax.inject.Inject;
 
@@ -32,7 +35,7 @@ public class ConfirmAvatarDialogFragment extends DialogFragment {
 
 	@Inject
 	ViewModelProvider.Factory viewModelFactory;
-	private SettingsViewModel settingsViewModel;
+	private SettingsViewModel viewModel;
 
 	private static final String ARG_URI = "uri";
 	private Uri uri;
@@ -51,6 +54,9 @@ public class ConfirmAvatarDialogFragment extends DialogFragment {
 	public void onAttach(Context ctx) {
 		super.onAttach(ctx);
 		((BaseActivity) requireActivity()).getActivityComponent().inject(this);
+		ViewModelProvider provider =
+				new ViewModelProvider(requireActivity(), viewModelFactory);
+		viewModel = provider.get(SettingsViewModel.class);
 	}
 
 	@Override
@@ -60,32 +66,34 @@ public class ConfirmAvatarDialogFragment extends DialogFragment {
 		uri = Uri.parse(argUri);
 
 		FragmentActivity activity = requireActivity();
-
-		ViewModelProvider provider =
-				new ViewModelProvider(activity, viewModelFactory);
-		settingsViewModel = provider.get(SettingsViewModel.class);
-
-		AlertDialog.Builder builder =
-				new AlertDialog.Builder(activity, R.style.BriarDialogTheme);
-
-		LayoutInflater inflater = LayoutInflater.from(getContext());
+		LayoutInflater inflater = LayoutInflater.from(activity);
 		final View view =
 				inflater.inflate(R.layout.fragment_confirm_avatar_dialog, null);
-		builder.setView(view);
-
-		builder.setTitle(R.string.dialog_confirm_profile_picture_title);
-		builder.setNegativeButton(R.string.cancel, null);
-		builder.setPositiveButton(R.string.change,
-				(dialog, id) -> settingsViewModel.setAvatar(uri));
-
 		ImageView imageView = view.findViewById(R.id.image);
-		imageView.setImageURI(uri);
-
 		TextView textViewUserName = view.findViewById(R.id.username);
-		settingsViewModel.getOwnIdentityInfo().observe(activity,
-				us -> textViewUserName.setText(us.getLocalAuthor().getName()));
 
-		return builder.create();
+		GlideApp.with(imageView)
+				.load(uri)
+				.diskCacheStrategy(DiskCacheStrategy.NONE)
+				.error(R.drawable.ic_image_broken)
+				.into(imageView)
+				.waitForLayout();
+
+		// we can't use getViewLifecycleOwner() here
+		// as this fragment technically doesn't have a view
+		viewModel.getOwnIdentityInfo().observe(activity, us ->
+				textViewUserName.setText(us.getLocalAuthor().getName())
+		);
+
+		int theme = R.style.BriarDialogTheme;
+		return new AlertDialog.Builder(activity, theme)
+				.setView(view)
+				.setTitle(R.string.dialog_confirm_profile_picture_title)
+				.setNegativeButton(R.string.cancel, null)
+				.setPositiveButton(R.string.change, (d, id) ->
+						viewModel.setAvatar(uri)
+				)
+				.create();
 	}
 
 }

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

@@ -79,7 +79,7 @@ class SettingsViewModel extends AndroidViewModel {
 		return ownIdentityInfo;
 	}
 
-	public LiveEvent<Boolean> getSetAvatarFailed() {
+	LiveEvent<Boolean> getSetAvatarFailed() {
 		return setAvatarFailed;
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/CustodianSelectorFragment.java

@@ -1,93 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-
-import android.os.Bundle;
-import android.view.MenuItem;
-import android.widget.Toast;
-
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
-import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
-import org.briarproject.bramble.api.sync.GroupId;
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.socialbackup.creation.CreateBackupController;
-import org.briarproject.briar.android.contactselection.BaseContactSelectorAdapter;
-import org.briarproject.briar.android.contactselection.ContactSelectorController;
-import org.briarproject.briar.android.contactselection.ContactSelectorFragment;
-import org.briarproject.briar.android.contactselection.SelectableContactItem;
-import org.briarproject.briar.android.controller.handler.ResultExceptionHandler;
-
-import java.util.Collection;
-
-import javax.inject.Inject;
-
-import androidx.annotation.Nullable;
-
-import static java.util.Objects.requireNonNull;
-
-@MethodsNotNullByDefault
-@ParametersNotNullByDefault
-public class CustodianSelectorFragment extends ContactSelectorFragment {
-
-	public static final String TAG = CustodianSelectorFragment.class.getName();
-
-	@Inject
-	CreateBackupController controller;
-
-	public static CustodianSelectorFragment newInstance() {
-		Bundle args = new Bundle();
-
-		CustodianSelectorFragment fragment = new CustodianSelectorFragment();
-		fragment.setArguments(args);
-
-		return fragment;
-	}
-
-	@Override
-	public void injectFragment(ActivityComponent component) {
-		component.inject(this);
-	}
-
-	@Override
-	public void onCreate(@Nullable Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-
-		requireActivity().setTitle(R.string.title_select_custodians);
-	}
-
-	@Override
-	protected ContactSelectorController<SelectableContactItem> getController() {
-		return controller;
-	}
-
-	@Override
-	public String getUniqueTag() {
-		return TAG;
-	}
-
-	@Override
-	protected void onSelectionChanged() {
-		super.onSelectionChanged();
-		if (menu == null) return;
-		MenuItem item = menu.findItem(R.id.action_contacts_selected);
-		if (item == null) return;
-
-		BaseContactSelectorAdapter a = adapter;
-		selectedContacts = a.getSelectedContactIds();
-
-		int n = selectedContacts.size();
-		int min = 2;
-		boolean enough = n >= min;
-
-		item.setVisible(enough);
-		if (n == 0) {
-			Toast.makeText(getContext(), String.format(getString(R.string.select_at_least_n_contacts), min),
-					Toast.LENGTH_SHORT).show();
-		} else if (n < min) {
-			Toast.makeText(getContext(), String.format(getString(R.string.select_at_least_n_more_contacts), min - n),
-					Toast.LENGTH_SHORT).show();
-		}
-	}
-
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/DarkCrystalImpl.java

@@ -1,46 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-import org.briarproject.bramble.api.crypto.SecretKey;
-import org.briarproject.briar.api.socialbackup.Shard;
-import org.briarproject.briar.api.socialbackup.DarkCrystal;
-import org.magmacollective.darkcrystal.secretsharingwrapper.SecretSharingWrapper;
-
-import java.security.GeneralSecurityException;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-import java.util.Random;
-
-import static org.briarproject.briar.socialbackup.SocialBackupConstants.SECRET_ID_BYTES;
-
-public class DarkCrystalImpl implements DarkCrystal {
-
-	@Override
-	public List<Shard> createShards(SecretKey secret, int numShards,
-			int threshold) {
-		Random random = new Random();
-		byte[] secretId = new byte[SECRET_ID_BYTES];
-		random.nextBytes(secretId);
-		List<byte[]> shardsBytes = SecretSharingWrapper.share(secret.getBytes(), numShards, threshold);
-		List<Shard> shards = new ArrayList<>(numShards);
-		for (byte[] shardBytes : shardsBytes) {
-			shards.add(new Shard(secretId, shardBytes));
-		}
-		return shards;
-	}
-
-	@Override
-	public SecretKey combineShards(List<Shard> shards) throws
-			GeneralSecurityException {
-		// Check each shard has the same secret Id
-		byte[] secretId = shards.get(0).getSecretId();
-		for (Shard shard : shards) {
-			if (!Arrays.equals(shard.getSecretId(), secretId)) throw new GeneralSecurityException();
-		}
-        List<byte[]> shardsBytes = new ArrayList<>(shards.size());
-		for (Shard shard : shards) {
-			shardsBytes.add(shard.getShard());
-		}
-		byte[] secretBytes = SecretSharingWrapper.combine(shardsBytes);
-		return new SecretKey(secretBytes);
-	}
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/DistributedBackupActivity.java

@@ -1,85 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-
-import android.os.Bundle;
-import android.widget.Toast;
-
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.db.DatabaseComponent;
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.activity.BriarActivity;
-import org.briarproject.briar.android.contactselection.ContactSelectorListener;
-import org.briarproject.briar.android.fragment.BaseFragment;
-import org.briarproject.briar.api.socialbackup.BackupMetadata;
-import org.briarproject.briar.api.socialbackup.SocialBackupManager;
-
-import java.util.Collection;
-import java.util.List;
-
-import javax.inject.Inject;
-
-public class DistributedBackupActivity extends BriarActivity implements
-		BaseFragment.BaseFragmentListener, ContactSelectorListener,
-		ThresholdDefinedListener, ShardsSentDismissedListener {
-
-	private Collection<ContactId> custodians;
-
-	@Inject
-    public SocialBackupManager socialBackupManager;
-
-	@Inject
-    public DatabaseComponent db;
-
-	@Override
-	public void injectActivity(ActivityComponent component) {
-		component.inject(this);
-	}
-
-	@Override
-	public void onCreate(Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		setContentView(R.layout.activity_distributed_backup);
-        // TODO here we should check if we already have a backup
-
-		try {
-			db.transaction(false, txn -> {
-				BackupMetadata backupMetadata = socialBackupManager.getBackupMetadata(txn);
-				 if (backupMetadata == null) {
-				CustodianSelectorFragment fragment =
-						CustodianSelectorFragment.newInstance();
-					 showInitialFragment(fragment);
-				 } else {
-					 ExistingBackupFragment fragment = ExistingBackupFragment.newInstance(backupMetadata);
-					 showInitialFragment(fragment);
-				 }
-			});
-		} catch (DbException e) {
-			e.printStackTrace();
-		}
-	}
-
-	@Override
-	public void contactsSelected(Collection<ContactId> contacts) {
-		Toast.makeText(this,
-				String.format("selected %d contacts", contacts.size()),
-				Toast.LENGTH_SHORT).show();
-		custodians = contacts;
-		ThresholdSelectorFragment fragment = ThresholdSelectorFragment.newInstance(contacts.size());
-		showNextFragment(fragment);
-	}
-
-	@Override
-	public void thresholdDefined(int threshold) throws DbException {
-		db.transaction(false, txn -> {
-			socialBackupManager.createBackup(txn, (List<ContactId>) custodians, threshold);
-			ShardsSentFragment fragment = new ShardsSentFragment();
-			showNextFragment(fragment);
-		});
-	}
-
-	@Override
-	public void shardsSentDismissed() {
-		finish();
-	}
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/ExistingBackupFragment.java

@@ -1,85 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-
-import android.content.Context;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import org.briarproject.bramble.api.identity.Author;
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.fragment.BaseFragment;
-import org.briarproject.briar.api.socialbackup.BackupMetadata;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-
-public class ExistingBackupFragment extends BaseFragment {
-
-	private static final String THRESHOLD = "threshold";
-	private static final String CUSTODIANS = "custodians";
-	public static final String TAG = ExistingBackupFragment.class.getName();
-
-	public static ExistingBackupFragment newInstance(
-			BackupMetadata backupMetadata) {
-		Bundle bundle = new Bundle();
-		List<Author> custodians = backupMetadata.getCustodians();
-		ArrayList custodianNames = new ArrayList();
-	    for (Author custodian : custodians) {
-	    	custodianNames.add(custodian.getName());
-	    }
-	    bundle.putStringArrayList(CUSTODIANS, custodianNames);
-		bundle.putInt(THRESHOLD, backupMetadata.getThreshold());
-		ExistingBackupFragment fragment = new ExistingBackupFragment();
-		fragment.setArguments(bundle);
-		return fragment;
-	}
-	@Override
-	public void onCreate(@Nullable Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		requireActivity().setTitle(R.string.title_distributed_backup);
-
-	}
-
-	@Nullable
-	@Override
-	public View onCreateView(@NonNull LayoutInflater inflater, @Nullable
-			ViewGroup container, @Nullable Bundle savedInstanceState) {
-		View view = inflater.inflate(R.layout.fragment_existing_backup,
-				container, false);
-		Bundle args = requireArguments();
-        ArrayList<String> custodianNames = args.getStringArrayList(CUSTODIANS);
-        String custodianNamesString = "";
-        for (String custodianName : custodianNames) {
-          	custodianNamesString += custodianName + ", ";
-        }
-        TextView textViewThreshold = view.findViewById(R.id.textViewThreshold);
-        textViewThreshold.setText(String.format("%d of %d contacts needed to restore account", args.getInt(THRESHOLD), custodianNames.size()));
-        TextView textViewCustodians = view.findViewById(R.id.textViewCustodians);
-        textViewCustodians.setText(custodianNamesString);
-		return view;
-	}
-
-	@Override
-	public void onAttach(Context context) {
-		super.onAttach(context);
-//		listener = (ShardsSentDismissedListener) context;
-	}
-
-
-	@Override
-	public String getUniqueTag() {
-		return TAG;
-	}
-
-	@Override
-	public void injectFragment(ActivityComponent component) {
-		component.inject(this);
-	}
-
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/OldDistributedBackupActivity.java

@@ -1,39 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-
-import android.os.Bundle;
-import android.widget.Toast;
-
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.activity.BriarActivity;
-import org.briarproject.briar.android.contactselection.ContactSelectorListener;
-import org.briarproject.briar.android.fragment.BaseFragment;
-
-import java.util.Collection;
-
-public class OldDistributedBackupActivity extends BriarActivity
-		implements BaseFragment.BaseFragmentListener, ContactSelectorListener {
-
-	@Override
-	public void injectActivity(ActivityComponent component) {
-		component.inject(this);
-	}
-
-	@Override
-	public void onCreate(Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		setContentView(R.layout.activity_distributed_backup);
-
-//		CustodianDisplayFragment fragment =
-//				CustodianDisplayFragment.newInstance();
-//
-//		showInitialFragment(fragment);
-	}
-
-	@Override
-	public void contactsSelected(Collection<ContactId> contacts) {
-		// do nothing
-	}
-
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/ShardsSentDismissedListener.java

@@ -1,10 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-
-import androidx.annotation.UiThread;
-
-public interface ShardsSentDismissedListener {
-
-	@UiThread
-	void shardsSentDismissed();
-
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/ShardsSentFragment.java

@@ -1,60 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-
-import android.content.Context;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.Button;
-
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.fragment.BaseFragment;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-
-public class ShardsSentFragment extends BaseFragment {
-
-    public static final String TAG = ShardsSentFragment.class.getName();
-
-    protected ShardsSentDismissedListener listener;
-
-    @Override
-    public void onCreate(@Nullable Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        requireActivity().setTitle(R.string.title_distributed_backup);
-    }
-
-    @Nullable
-    @Override
-    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
-        View view = inflater.inflate(R.layout.fragment_shards_sent,
-                container, false);
-
-        Button button = view.findViewById(R.id.button);
-        button.setOnClickListener(e -> {
-            listener.shardsSentDismissed();
-        });
-
-        return view;
-    }
-
-    @Override
-    public void onAttach(Context context) {
-        super.onAttach(context);
-        listener = (ShardsSentDismissedListener) context;
-    }
-
-
-    @Override
-    public String getUniqueTag() {
-        return TAG;
-    }
-
-    @Override
-    public void injectFragment(ActivityComponent component) {
-        component.inject(this);
-    }
-
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/ThresholdDefinedListener.java

@@ -1,12 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-
-import org.briarproject.bramble.api.db.DbException;
-
-import androidx.annotation.UiThread;
-
-public interface ThresholdDefinedListener {
-
-	@UiThread
-	void thresholdDefined(int threshold) throws DbException;
-
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/ThresholdSelectorFragment.java

@@ -1,169 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-
-import android.content.Context;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ImageView;
-import android.widget.SeekBar;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.contactselection.ContactSelectorListener;
-import org.briarproject.briar.android.fragment.BaseFragment;
-import org.magmacollective.darkcrystal.secretsharingwrapper.SecretSharingWrapper;
-
-import static java.util.Objects.requireNonNull;
-
-public class ThresholdSelectorFragment extends BaseFragment {
-
-    public static final String TAG = ThresholdSelectorFragment.class.getName();
-    private static final String NUMBER_CUSTODIANS = "numberCustodians";
-
-    protected ThresholdDefinedListener listener;
-
-    // TODO this should be the actual number of custodians
-    private int numberOfCustodians;
-    private int threshold;
-    private int recommendedThreshold;
-    private SeekBar seekBar;
-    private TextView thresholdRepresentation;
-    private TextView message;
-    private TextView mOfn;
-
-    public static ThresholdSelectorFragment newInstance(int numberCustodians) {
-        Bundle bundle = new Bundle();
-        bundle.putInt(NUMBER_CUSTODIANS, numberCustodians);
-        ThresholdSelectorFragment fragment = new ThresholdSelectorFragment();
-        fragment.setArguments(bundle);
-        return fragment;
-    }
-
-    @Override
-    public void onCreate(@Nullable Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        requireActivity().setTitle(R.string.title_define_threshold);
-    }
-
-    @Nullable
-    @Override
-    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
-        View view = inflater.inflate(R.layout.fragment_select_threshold,
-                container, false);
-	    Bundle args = requireArguments();
-	    numberOfCustodians = args.getInt(NUMBER_CUSTODIANS);
-
-        seekBar = view.findViewById(R.id.seekBar);
-        thresholdRepresentation = view.findViewById(R.id.textViewThresholdRepresentation);
-        message = view.findViewById(R.id.textViewMessage);
-        mOfn = view.findViewById(R.id.textViewmOfn);
-        int max = numberOfCustodians - 3;
-        seekBar.setMax(max);
-        seekBar.setOnSeekBarChangeListener(new SeekBarListener());
-        recommendedThreshold = SecretSharingWrapper.defaultThreshold(numberOfCustodians);
-        threshold = recommendedThreshold;
-        seekBar.setProgress(threshold - 2);
-
-        thresholdRepresentation.setText(buildThresholdRepresentationString());
-        setmOfnText();
-        return view;
-//        return super.onCreateView(inflater, container, savedInstanceState);
-    }
-
-    private void setmOfnText() {
-        mOfn.setText(String.format("%d of %d contacts needed to recover your account", threshold, numberOfCustodians));
-    }
-
-    @Override
-    public void onAttach(Context context) {
-        super.onAttach(context);
-        listener = (ThresholdDefinedListener) context;
-    }
-
-
-    @Override
-    public String getUniqueTag() {
-        return TAG;
-    }
-
-    @Override
-    public void injectFragment(ActivityComponent component) {
-        component.inject(this);
-    }
-
-    @Override
-    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
-        inflater.inflate(R.menu.define_threshold_actions, menu);
-        super.onCreateOptionsMenu(menu, inflater);
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        switch (item.getItemId()) {
-            case R.id.action_threshold_defined:
-                try {
-                    listener.thresholdDefined(threshold);
-                } catch (DbException e) {
-                    e.printStackTrace();
-                }
-                return true;
-            default:
-                return super.onOptionsItemSelected(item);
-        }
-    }
-
-    private String buildThresholdRepresentationString () {
-        String thresholdRepresentationText = "";
-        for (int i = 0; i < threshold; i++) {
-            thresholdRepresentationText += getString(R.string.filled_bullet);
-        }
-        for (int i = 0; i < (numberOfCustodians - threshold); i++) {
-            thresholdRepresentationText += getString(R.string.linear_bullet);
-        }
-        return thresholdRepresentationText;
-    }
-
-    private class SeekBarListener implements SeekBar.OnSeekBarChangeListener {
-
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress,
-                boolean fromUser) {
-	        threshold = progress + 2;
-
-            thresholdRepresentation.setText(
-                    buildThresholdRepresentationString()
-            );
-            setmOfnText();
-
-            int sanityLevel = SecretSharingWrapper.thresholdSanity(threshold, numberOfCustodians);
-            int text = R.string.threshold_secure;
-            if (threshold == recommendedThreshold) text = R.string.threshold_recommended;
-            if (sanityLevel < -1) text = R.string.threshold_low_insecure;
-            if (sanityLevel > 0) text = R.string.threshold_high_insecure;
-            message.setText(text);
-            // TODO change colour of thresholdRepresentation to green/red based on sanityLevel
-        }
-
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-            // do nothing
-        }
-
-        @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-            // do nothing
-        }
-
-    }
-
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/creation/CreateBackupController.java

@@ -1,26 +0,0 @@
-package org.briarproject.briar.android.socialbackup.creation;
-
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.sync.GroupId;
-import org.briarproject.briar.android.contactselection.ContactSelectorController;
-import org.briarproject.briar.android.contactselection.SelectableContactItem;
-import org.briarproject.briar.android.controller.handler.ResultExceptionHandler;
-
-import java.util.Collection;
-
-import androidx.annotation.Nullable;
-
-@NotNullByDefault
-public interface CreateBackupController
-		extends ContactSelectorController<SelectableContactItem> {
-
-	void createGroup(String name,
-			ResultExceptionHandler<GroupId, DbException> result);
-
-	void sendInvitation(GroupId g, Collection<ContactId> contacts,
-			@Nullable String text,
-			ResultExceptionHandler<Void, DbException> result);
-
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/creation/CreateBackupControllerImpl.java

@@ -1,206 +0,0 @@
-package org.briarproject.briar.android.socialbackup.creation;
-
-import org.briarproject.bramble.api.contact.Contact;
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.contact.ContactManager;
-import org.briarproject.bramble.api.crypto.CryptoExecutor;
-import org.briarproject.bramble.api.db.DatabaseExecutor;
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.bramble.api.db.NoSuchContactException;
-import org.briarproject.bramble.api.identity.IdentityManager;
-import org.briarproject.bramble.api.identity.LocalAuthor;
-import org.briarproject.bramble.api.lifecycle.LifecycleManager;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.sync.GroupId;
-import org.briarproject.bramble.api.system.Clock;
-import org.briarproject.briar.android.contactselection.ContactSelectorControllerImpl;
-import org.briarproject.briar.android.controller.handler.ResultExceptionHandler;
-import org.briarproject.briar.api.identity.AuthorManager;
-import org.briarproject.briar.api.privategroup.GroupMessage;
-import org.briarproject.briar.api.privategroup.GroupMessageFactory;
-import org.briarproject.briar.api.privategroup.PrivateGroup;
-import org.briarproject.briar.api.privategroup.PrivateGroupFactory;
-import org.briarproject.briar.api.privategroup.PrivateGroupManager;
-import org.briarproject.briar.api.privategroup.invitation.GroupInvitationFactory;
-import org.briarproject.briar.api.privategroup.invitation.GroupInvitationManager;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import java.util.concurrent.Executor;
-import java.util.logging.Logger;
-
-import javax.annotation.concurrent.Immutable;
-import javax.inject.Inject;
-
-import androidx.annotation.Nullable;
-
-import static java.util.logging.Level.WARNING;
-import static org.briarproject.bramble.util.LogUtils.logException;
-
-@Immutable
-@NotNullByDefault
-/**
- * Derived from {@link org.briarproject.briar.android.privategroup.invitation.GroupInvitationControllerImpl}
- */
-class CreateBackupControllerImpl extends ContactSelectorControllerImpl
-		implements CreateBackupController {
-
-	private static final Logger LOG =
-			Logger.getLogger(
-					CreateBackupControllerImpl.class.getName());
-
-	private final Executor cryptoExecutor;
-	private final ContactManager contactManager;
-	private final IdentityManager identityManager;
-	private final PrivateGroupFactory groupFactory;
-	private final GroupMessageFactory groupMessageFactory;
-	private final PrivateGroupManager groupManager;
-	private final GroupInvitationFactory groupInvitationFactory;
-	private final GroupInvitationManager groupInvitationManager;
-	private final Clock clock;
-
-	@Inject
-	CreateBackupControllerImpl(@DatabaseExecutor Executor dbExecutor,
-			@CryptoExecutor Executor cryptoExecutor,
-			LifecycleManager lifecycleManager, ContactManager contactManager,
-			IdentityManager identityManager, PrivateGroupFactory groupFactory,
-			GroupMessageFactory groupMessageFactory,
-			PrivateGroupManager groupManager,
-			GroupInvitationFactory groupInvitationFactory,
-			GroupInvitationManager groupInvitationManager, Clock clock, AuthorManager authorManager) {
-		super(dbExecutor, lifecycleManager, contactManager, authorManager);
-		this.cryptoExecutor = cryptoExecutor;
-		this.contactManager = contactManager;
-		this.identityManager = identityManager;
-		this.groupFactory = groupFactory;
-		this.groupMessageFactory = groupMessageFactory;
-		this.groupManager = groupManager;
-		this.groupInvitationFactory = groupInvitationFactory;
-		this.groupInvitationManager = groupInvitationManager;
-		this.clock = clock;
-	}
-
-	@Override
-	public void createGroup(String name,
-			ResultExceptionHandler<GroupId, DbException> handler) {
-		runOnDbThread(() -> {
-			try {
-				LocalAuthor author = identityManager.getLocalAuthor();
-				createGroupAndMessages(author, name, handler);
-			} catch (DbException e) {
-				logException(LOG, WARNING, e);
-				handler.onException(e);
-			}
-		});
-	}
-
-	private void createGroupAndMessages(LocalAuthor author, String name,
-			ResultExceptionHandler<GroupId, DbException> handler) {
-		cryptoExecutor.execute(() -> {
-			LOG.info("Creating group...");
-			PrivateGroup group =
-					groupFactory.createPrivateGroup(name, author);
-			LOG.info("Creating new join announcement...");
-			GroupMessage joinMsg =
-					groupMessageFactory.createJoinMessage(group.getId(),
-							clock.currentTimeMillis(), author);
-			storeGroup(group, joinMsg, handler);
-		});
-	}
-
-	private void storeGroup(PrivateGroup group, GroupMessage joinMsg,
-			ResultExceptionHandler<GroupId, DbException> handler) {
-		runOnDbThread(() -> {
-			LOG.info("Adding group to database...");
-			try {
-				groupManager.addPrivateGroup(group, joinMsg, true);
-				handler.onResult(group.getId());
-			} catch (DbException e) {
-				logException(LOG, WARNING, e);
-				handler.onException(e);
-			}
-		});
-	}
-
-	@Override
-	protected boolean isDisabled(GroupId g, Contact c) {
-		return false;
-	}
-
-	@Override
-	public void sendInvitation(GroupId g, Collection<ContactId> contactIds,
-			@Nullable String text,
-			ResultExceptionHandler<Void, DbException> handler) {
-		runOnDbThread(() -> {
-			try {
-				LocalAuthor localAuthor = identityManager.getLocalAuthor();
-				List<Contact> contacts = new ArrayList<>();
-				for (ContactId c : contactIds) {
-					try {
-						contacts.add(contactManager.getContact(c));
-					} catch (NoSuchContactException e) {
-						// Continue
-					}
-				}
-				signInvitations(g, localAuthor, contacts, text, handler);
-			} catch (DbException e) {
-				logException(LOG, WARNING, e);
-				handler.onException(e);
-			}
-		});
-	}
-
-	private void signInvitations(GroupId g, LocalAuthor localAuthor,
-			Collection<Contact> contacts, @Nullable String text,
-			ResultExceptionHandler<Void, DbException> handler) {
-		cryptoExecutor.execute(() -> {
-			long timestamp = clock.currentTimeMillis();
-			List<InvitationContext> contexts = new ArrayList<>();
-			for (Contact c : contacts) {
-				byte[] signature = groupInvitationFactory.signInvitation(c, g,
-						timestamp, localAuthor.getPrivateKey());
-				contexts.add(new InvitationContext(c.getId(), timestamp,
-						signature));
-			}
-			sendInvitations(g, contexts, text, handler);
-		});
-	}
-
-	private void sendInvitations(GroupId g,
-			Collection<InvitationContext> contexts, @Nullable String text,
-			ResultExceptionHandler<Void, DbException> handler) {
-		runOnDbThread(() -> {
-			try {
-				for (InvitationContext context : contexts) {
-					try {
-						groupInvitationManager.sendInvitation(g,
-								context.contactId, text, context.timestamp,
-								context.signature);
-					} catch (NoSuchContactException e) {
-						// Continue
-					}
-				}
-				//noinspection ConstantConditions
-				handler.onResult(null);
-			} catch (DbException e) {
-				logException(LOG, WARNING, e);
-				handler.onException(e);
-			}
-		});
-	}
-
-	private static class InvitationContext {
-
-		private final ContactId contactId;
-		private final long timestamp;
-		private final byte[] signature;
-
-		private InvitationContext(ContactId contactId, long timestamp,
-				byte[] signature) {
-			this.contactId = contactId;
-			this.timestamp = timestamp;
-			this.signature = signature;
-		}
-	}
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/creation/CreateBackupModule.java

@@ -1,18 +0,0 @@
-package org.briarproject.briar.android.socialbackup.creation;
-
-import org.briarproject.briar.android.activity.ActivityScope;
-
-import dagger.Module;
-import dagger.Provides;
-
-@Module
-public class CreateBackupModule {
-
-	@ActivityScope
-	@Provides
-	CreateBackupController provideCreateGroupController(
-			CreateBackupControllerImpl createBackupController) {
-		return createBackupController;
-	}
-
-}

briar-android/src/main/res/drawable/ic_baseline_done_outline_24.xml

@@ -1,5 +0,0 @@
-<vector android:height="24dp" android:tint="#29C400"
-    android:viewportHeight="24" android:viewportWidth="24"
-    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
-    <path android:fillColor="@android:color/white" android:pathData="M19.77,5.03l1.4,1.4L8.43,19.17l-5.6,-5.6 1.4,-1.4 4.2,4.2L19.77,5.03m0,-2.83L8.43,13.54l-4.2,-4.2L0,13.57 8.43,22 24,6.43 19.77,2.2z"/>
-</vector>

briar-android/src/main/res/layout/activity_distributed_backup.xml

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/fragmentContainer"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/activity_nav_drawer.xml

@@ -52,16 +52,17 @@
 				android:layout_height="0dp"
 				android:contentDescription="@string/close"
 				android:scaleType="center"
-				app:srcCompat="@drawable/ic_close"
 				app:layout_constraintBottom_toBottomOf="parent"
 				app:layout_constraintEnd_toEndOf="parent"
 				app:layout_constraintTop_toTopOf="parent"
+				app:srcCompat="@drawable/ic_close"
 				app:tint="@color/briar_text_tertiary_inverse" />
 
 		</androidx.constraintlayout.widget.ConstraintLayout>
 
-		<FrameLayout
+		<androidx.fragment.app.FragmentContainerView
 			android:id="@+id/fragmentContainer"
+			android:name="org.briarproject.briar.android.contact.ContactListFragment"
 			android:layout_width="0dp"
 			android:layout_height="0dp"
 			app:layout_constraintBottom_toBottomOf="parent"

briar-android/src/main/res/layout/activity_preview_recovery_custodian1.xml

@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:fitsSystemWindows="true"
-	android:orientation="vertical">
-
-	<androidx.appcompat.widget.Toolbar
-		android:id="@+id/toolbar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:background="?attr/colorPrimary"
-		android:minHeight="?attr/actionBarSize"
-		app:title="@string/title_help_recover"
-		app:titleTextColor="@android:color/white" />
-
-	<include layout="@layout/fragment_recovery_custodian_explainer" />
-
-</LinearLayout>

briar-android/src/main/res/layout/activity_preview_recovery_custodian2.xml

@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:fitsSystemWindows="true"
-	android:orientation="vertical">
-
-	<androidx.appcompat.widget.Toolbar
-		android:id="@+id/toolbar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:background="?attr/colorPrimary"
-		android:minHeight="?attr/actionBarSize"
-		app:title="@string/title_help_recover"
-		app:titleTextColor="@android:color/white" />
-
-	<include layout="@layout/fragment_recovery_custodian_error_explainer" />
-
-</LinearLayout>

briar-android/src/main/res/layout/activity_preview_recovery_owner1.xml

@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:fitsSystemWindows="true"
-	android:orientation="vertical">
-
-	<androidx.appcompat.widget.Toolbar
-		android:id="@+id/toolbar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:background="?attr/colorPrimary"
-		android:minHeight="?attr/actionBarSize"
-		app:title="@string/title_recovery_mode"
-		app:titleTextColor="@android:color/white" />
-
-	<include layout="@layout/fragment_recovery_owner_explainer" />
-
-</LinearLayout>

briar-android/src/main/res/layout/activity_preview_recovery_owner2.xml

@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:fitsSystemWindows="true"
-	android:orientation="vertical">
-
-	<androidx.appcompat.widget.Toolbar
-		android:id="@+id/toolbar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:background="?attr/colorPrimary"
-		android:minHeight="?attr/actionBarSize"
-		app:title="@string/title_recovery_mode"
-		app:titleTextColor="@android:color/white" />
-
-	<include layout="@layout/fragment_recovery_owner_error_explainer" />
-
-</LinearLayout>

briar-android/src/main/res/layout/activity_preview_recovery_owner3.xml

@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:fitsSystemWindows="true"
-	android:orientation="vertical">
-
-	<androidx.appcompat.widget.Toolbar
-		android:id="@+id/toolbar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:background="?attr/colorPrimary"
-		android:minHeight="?attr/actionBarSize"
-		app:title="@string/title_recovery_mode"
-		app:titleTextColor="@android:color/white" />
-
-	<include layout="@layout/fragment_recovery_owner_main" />
-
-</LinearLayout>

briar-android/src/main/res/layout/activity_preview_recovery_owner4.xml

@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:fitsSystemWindows="true"
-	android:orientation="vertical">
-
-	<androidx.appcompat.widget.Toolbar
-		android:id="@+id/toolbar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:background="?attr/colorPrimary"
-		android:minHeight="?attr/actionBarSize"
-		app:title="@string/title_recovery_mode"
-		app:titleTextColor="@android:color/white" />
-
-	<include layout="@layout/fragment_recovery_owner_recovering" />
-
-</LinearLayout>

briar-android/src/main/res/layout/activity_preview_welcome.xml

@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:fitsSystemWindows="true"
-	android:orientation="vertical">
-
-	<androidx.appcompat.widget.Toolbar
-		android:id="@+id/toolbar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:background="?attr/colorPrimary"
-		android:minHeight="?attr/actionBarSize"
-		app:title="@string/setup_title"
-		app:titleTextColor="@android:color/white" />
-
-	<include layout="@layout/fragment_start" />
-
-</LinearLayout>

briar-android/src/main/res/layout/activity_welcome.xml

@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:fitsSystemWindows="true"
-	android:orientation="vertical">
-
-	<androidx.appcompat.widget.Toolbar
-		android:id="@+id/toolbar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:background="?attr/colorPrimary"
-		android:minHeight="?attr/actionBarSize"
-		app:title="@string/setup_title"
-		app:titleTextColor="@android:color/white" />
-
-</LinearLayout>

briar-android/src/main/res/layout/fragment_account_recovered.xml

@@ -1,50 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/linearLayout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:paddingLeft="@dimen/margin_large"
-    android:paddingTop="@dimen/margin_medium"
-    android:paddingRight="@dimen/margin_large"
-    android:paddingBottom="@dimen/margin_medium">
-
-    <Button
-        android:id="@+id/button"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="32dp"
-        android:text="@string/backup_done_dismiss"
-        android:textSize="24sp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textView2" />
-
-    <TextView
-        android:id="@+id/textView2"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
-        android:gravity="center"
-        android:text="@string/recovery_account_recovered"
-        android:textSize="30sp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/imageView2" />
-
-    <ImageView
-        android:id="@+id/imageView2"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_marginStart="32dp"
-        android:layout_marginLeft="32dp"
-        android:layout_marginTop="8dp"
-        android:layout_marginEnd="32dp"
-        android:layout_marginRight="32dp"
-        app:layout_constraintDimensionRatio="1:1"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:srcCompat="@drawable/ic_baseline_done_outline_24" />
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_existing_backup.xml

@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout
-	xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:tools="http://schemas.android.com/tools"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	android:layout_width="match_parent"
-
-	android:paddingLeft="@dimen/margin_large"
-	android:paddingTop="@dimen/margin_large"
-	android:paddingRight="@dimen/margin_large"
-	android:paddingBottom="@dimen/margin_medium"
-	android:layout_height="match_parent">
-
-	<TextView
-		android:id="@+id/textViewThreshold"
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:gravity="center"
-		android:text="placeholder threshold"
-		android:textSize="16sp"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toTopOf="parent" />
-
-	<TextView
-		android:id="@+id/textViewCustodians"
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:gravity="center"
-		android:text="@string/backup_done_info"
-		android:textSize="16sp"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/textViewThreshold" />
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_mockups.xml

@@ -1,130 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent">
-
-	<LinearLayout
-		android:id="@+id/linearLayout"
-		android:layout_width="match_parent"
-		android:layout_height="match_parent"
-		android:orientation="vertical"
-		android:paddingLeft="@dimen/margin_large"
-		android:paddingTop="@dimen/margin_medium"
-		android:paddingRight="@dimen/margin_large"
-		android:paddingBottom="@dimen/margin_medium">
-
-		<TextView
-			android:layout_width="wrap_content"
-			android:layout_height="wrap_content"
-			android:text="Backup creation" />
-
-		<Button
-			android:id="@+id/buttonSelectThreshold"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Select Threshold" />
-
-		<Button
-			android:id="@+id/buttonShardsSent"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Shards sent" />
-
-		<TextView
-			android:layout_width="wrap_content"
-			android:layout_height="wrap_content"
-			android:text="Setup" />
-
-		<Button
-			android:id="@+id/buttonWelcome"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Welcome" />
-
-		<TextView
-			android:layout_width="wrap_content"
-			android:layout_height="wrap_content"
-			android:text="Recovery from secrect owner's point of view" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryExplainer"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Explainer" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryReceivedShard"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Shard received" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryMain1"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Main (0 shards)" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryMain2"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Main (1 shard)" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryMain3"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Recovering account…" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryAccountRecovered"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Account recovered" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryErrorExplainer"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Error" />
-
-		<TextView
-			android:layout_width="wrap_content"
-			android:layout_height="wrap_content"
-			android:text="Recovery from custodian's point of view" />
-
-		<Button
-			android:id="@+id/buttonCustodianRecoveryExplainer"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Explainer" />
-
-		<Button
-			android:id="@+id/buttonCustodianRecoveryErrorExplainer"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Error" />
-
-		<Button
-			android:id="@+id/buttonCustodianRecoveryDone"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Done" />
-
-	</LinearLayout>
-</ScrollView>

briar-android/src/main/res/layout/fragment_new_or_recover.xml

@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:id="@+id/linearLayout"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:paddingLeft="@dimen/margin_large"
-	android:paddingTop="@dimen/margin_medium"
-	android:paddingRight="@dimen/margin_large"
-	android:paddingBottom="@dimen/margin_medium"
-	tools:showIn="@layout/activity_preview_welcome">
-
-	<Button
-		android:id="@+id/buttonSetupNewAccount"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:drawableLeft="@drawable/ic_contacts"
-		android:text="@string/setup_new_account"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toTopOf="parent" />
-
-	<Button
-		android:id="@+id/buttonRestoreAccount"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:drawableLeft="@drawable/ic_repeat"
-		android:text="@string/setup_restore_account"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/buttonSetupNewAccount" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_recovery_custodian_done.xml

@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:id="@+id/linearLayout"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:paddingLeft="@dimen/margin_large"
-	android:paddingTop="@dimen/margin_medium"
-	android:paddingRight="@dimen/margin_large"
-	android:paddingBottom="@dimen/margin_medium">
-
-	<TextView
-		android:id="@+id/textView2"
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="16dp"
-		android:gravity="center"
-		android:text="@string/custodian_shard_sent"
-		android:textSize="30sp"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/imageView2" />
-
-	<ImageView
-		android:id="@+id/imageView2"
-		android:layout_width="match_parent"
-		android:layout_height="0dp"
-		android:layout_marginStart="32dp"
-		android:layout_marginLeft="32dp"
-		android:layout_marginTop="8dp"
-		android:layout_marginEnd="32dp"
-		android:layout_marginRight="32dp"
-		app:layout_constraintDimensionRatio="1:1"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toTopOf="parent"
-		app:srcCompat="@drawable/ic_baseline_done_outline_24" />
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_recovery_custodian_error_explainer.xml

@@ -1,60 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:id="@+id/linearLayout"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:paddingLeft="@dimen/margin_large"
-	android:paddingTop="@dimen/margin_medium"
-	android:paddingRight="@dimen/margin_large"
-	android:paddingBottom="@dimen/margin_medium"
-	tools:ignore="VectorDrawableCompat"
-	tools:showIn="@layout/activity_preview_recovery_custodian2">
-
-	<TextView
-		android:id="@+id/textView1"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:gravity="center"
-		android:text="@string/custodian_recovery_failed_to_send"
-		android:textSize="24sp"
-		app:layout_constraintTop_toTopOf="parent"
-		tools:layout_editor_absoluteX="16dp" />
-
-	<ImageView
-		android:id="@+id/imageView"
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/textView1"
-		app:srcCompat="@drawable/qr_code_error" />
-
-	<TextView
-		android:id="@+id/textView2"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:gravity="center"
-		android:text="@string/recovery_helpful_suggestions"
-		android:textSize="24sp"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintHorizontal_bias="0.0"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/imageView" />
-
-	<Button
-		android:id="@+id/button"
-		android:layout_marginTop="24dp"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:text="@string/recovery_retry"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintHorizontal_bias="0.0"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/textView2" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_recovery_custodian_explainer.xml

@@ -1,47 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:id="@+id/linearLayout"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:paddingLeft="@dimen/margin_large"
-	android:paddingTop="@dimen/margin_medium"
-	android:paddingRight="@dimen/margin_large"
-	android:paddingBottom="@dimen/margin_medium"
-	tools:ignore="VectorDrawableCompat"
-	tools:showIn="@layout/activity_preview_recovery_custodian1">
-
-	<TextView
-		android:id="@+id/textView"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:gravity="center"
-		android:text="@string/custodian_recovery_explainer"
-		android:textSize="24sp"
-		app:layout_constraintTop_toTopOf="parent"
-		tools:layout_editor_absoluteX="16dp" />
-
-	<ImageView
-		android:id="@+id/imageView"
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/textView"
-		app:srcCompat="@drawable/qr_code_intro" />
-
-	<Button
-		android:id="@+id/button"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:text="@string/custodian_scan_code"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintHorizontal_bias="0.0"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/imageView" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_recovery_owner_error_explainer.xml

@@ -1,59 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:id="@+id/linearLayout"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:paddingLeft="@dimen/margin_large"
-	android:paddingTop="@dimen/margin_medium"
-	android:paddingRight="@dimen/margin_large"
-	android:paddingBottom="@dimen/margin_medium"
-	tools:ignore="VectorDrawableCompat"
-	tools:showIn="@layout/activity_preview_recovery_owner2">
-
-	<TextView
-		android:id="@+id/textView1"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:gravity="center"
-		android:text="@string/recovery_failed_to_receive"
-		android:textSize="24sp"
-		app:layout_constraintTop_toTopOf="parent" />
-
-	<ImageView
-		android:id="@+id/imageView"
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/textView1"
-		app:srcCompat="@drawable/qr_code_error" />
-
-	<TextView
-		android:id="@+id/textView2"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:gravity="center"
-		android:text="@string/recovery_helpful_suggestions"
-		android:textSize="24sp"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintHorizontal_bias="0.0"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/imageView" />
-
-	<Button
-		android:id="@+id/button"
-		android:layout_marginTop="24dp"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:text="@string/recovery_retry"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintHorizontal_bias="0.0"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/textView2" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_recovery_owner_explainer.xml

@@ -1,47 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:id="@+id/linearLayout"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:paddingLeft="@dimen/margin_large"
-	android:paddingTop="@dimen/margin_medium"
-	android:paddingRight="@dimen/margin_large"
-	android:paddingBottom="@dimen/margin_medium"
-	tools:ignore="VectorDrawableCompat"
-	tools:showIn="@layout/activity_preview_recovery_owner1">
-
-	<TextView
-		android:id="@+id/textView"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:gravity="center"
-		android:text="@string/recovery_explainer"
-		android:textSize="24sp"
-		app:layout_constraintTop_toTopOf="parent"
-		tools:layout_editor_absoluteX="16dp" />
-
-	<ImageView
-		android:id="@+id/imageView"
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/textView"
-		app:srcCompat="@drawable/qr_code_intro" />
-
-	<Button
-		android:id="@+id/button"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:text="@string/recovery_begin"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintHorizontal_bias="0.0"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/imageView" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_recovery_owner_main.xml

@@ -1,47 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:id="@+id/linearLayout"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:paddingLeft="@dimen/margin_large"
-	android:paddingTop="@dimen/margin_medium"
-	android:paddingRight="@dimen/margin_large"
-	android:paddingBottom="@dimen/margin_medium"
-	tools:ignore="VectorDrawableCompat"
-	tools:showIn="@layout/activity_preview_recovery_owner3">
-
-	<TextView
-		android:id="@+id/textView"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:gravity="center"
-		android:text="@string/recovery_recovered_shards"
-		android:textSize="24sp"
-		app:layout_constraintTop_toTopOf="parent"
-		tools:layout_editor_absoluteX="16dp" />
-
-	<TextView
-		android:id="@+id/textViewShardCount"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:gravity="center"
-		android:text="0"
-		android:textSize="24sp"
-		app:layout_constraintTop_toBottomOf="@+id/textView"
-		tools:layout_editor_absoluteX="16dp" />
-
-	<Button
-		android:id="@+id/button"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:text="@string/recovery_scan_qr_code"
-		app:layout_constraintBottom_toBottomOf="parent"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintHorizontal_bias="0.0"
-		app:layout_constraintStart_toStartOf="parent" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_recovery_owner_recovering.xml

@@ -1,58 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:id="@+id/linearLayout"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:paddingLeft="@dimen/margin_large"
-	android:paddingTop="@dimen/margin_medium"
-	android:paddingRight="@dimen/margin_large"
-	android:paddingBottom="@dimen/margin_medium"
-	tools:ignore="VectorDrawableCompat"
-	tools:showIn="@layout/activity_preview_recovery_owner4">
-
-	<TextView
-		android:id="@+id/textView"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:gravity="center"
-		android:text="@string/recovery_recovered_shards"
-		android:textSize="24sp"
-		app:layout_constraintTop_toTopOf="parent"
-		tools:layout_editor_absoluteX="16dp" />
-
-	<TextView
-		android:id="@+id/textViewShardCount"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:gravity="center"
-		android:text="3"
-		android:textSize="24sp"
-		app:layout_constraintTop_toBottomOf="@+id/textView"
-		tools:layout_editor_absoluteX="16dp" />
-
-	<ProgressBar
-		android:id="@+id/progressBar"
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:layout_gravity="center"
-		android:layout_marginTop="144dp"
-		android:indeterminate="true"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/textViewShardCount" />
-
-	<TextView
-		android:id="@+id/textView3"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="24dp"
-		android:gravity="center"
-		android:text="@string/recovery_recovering_account"
-		android:textSize="24sp"
-		app:layout_constraintTop_toBottomOf="@+id/progressBar" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_select_threshold.xml

@@ -1,69 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/linearLayout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:paddingLeft="@dimen/margin_large"
-    android:paddingTop="@dimen/margin_medium"
-    android:paddingRight="@dimen/margin_large"
-    android:paddingBottom="@dimen/margin_medium">
-
-    <TextView
-        android:id="@+id/title_threshold"
-        android:layout_width="0dp"
-        android:layout_height="wrap_content"
-        android:text="@string/threshold"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-
-    <SeekBar
-        android:id="@+id/seekBar"
-        android:layout_width="0dp"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="8dp"
-        android:max="5"
-        android:paddingTop="10dp"
-        android:progress="3"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.0"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/title_threshold" />
-
-
-    <TextView
-        android:id="@+id/textViewThresholdRepresentation"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="24dp"
-        android:text="placeholder"
-        android:textSize="64dp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/seekBar" />
-
-    <TextView
-        android:id="@+id/textViewmOfn"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="24dp"
-        android:text="m of n contacts needed to recover your account"
-        android:textSize="16dp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textViewThresholdRepresentation" />
-
-    <TextView
-        android:id="@+id/textViewMessage"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="24dp"
-        android:text="@string/threshold_secure"
-        android:textSize="16dp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textViewmOfn" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_shards_received.xml

@@ -1,50 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/linearLayout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:paddingLeft="@dimen/margin_large"
-    android:paddingTop="@dimen/margin_medium"
-    android:paddingRight="@dimen/margin_large"
-    android:paddingBottom="@dimen/margin_medium">
-
-    <Button
-        android:id="@+id/button"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="32dp"
-        android:text="@string/backup_done_dismiss"
-        android:textSize="24sp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textView2" />
-
-    <TextView
-        android:id="@+id/textView2"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
-        android:gravity="center"
-        android:text="@string/recovery_shard_received"
-        android:textSize="30sp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/imageView2" />
-
-    <ImageView
-        android:id="@+id/imageView2"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_marginStart="32dp"
-        android:layout_marginLeft="32dp"
-        android:layout_marginTop="8dp"
-        android:layout_marginEnd="32dp"
-        android:layout_marginRight="32dp"
-        app:layout_constraintDimensionRatio="1:1"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:srcCompat="@drawable/ic_baseline_done_outline_24" />
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_shards_sent.xml

@@ -1,50 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/linearLayout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:paddingLeft="@dimen/margin_large"
-    android:paddingTop="@dimen/margin_medium"
-    android:paddingRight="@dimen/margin_large"
-    android:paddingBottom="@dimen/margin_medium">
-
-    <Button
-        android:id="@+id/button"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="32dp"
-        android:text="@string/backup_done_dismiss"
-        android:textSize="24sp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textView2" />
-
-    <TextView
-        android:id="@+id/textView2"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
-        android:text="@string/backup_done_info"
-        android:gravity="center"
-        android:textSize="30sp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/imageView2" />
-
-    <ImageView
-        android:id="@+id/imageView2"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_marginStart="32dp"
-        android:layout_marginLeft="32dp"
-        android:layout_marginTop="8dp"
-        android:layout_marginEnd="32dp"
-        android:layout_marginRight="32dp"
-        app:layout_constraintDimensionRatio="1:1"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:srcCompat="@drawable/ic_baseline_done_outline_24" />
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_start.xml

@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:id="@+id/linearLayout"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:paddingLeft="@dimen/margin_large"
-	android:paddingTop="@dimen/margin_medium"
-	android:paddingRight="@dimen/margin_large"
-	android:paddingBottom="@dimen/margin_medium"
-	tools:showIn="@layout/activity_preview_welcome">
-
-	<Button
-		android:id="@+id/buttonSelectThreshold"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:drawableLeft="@drawable/ic_contacts"
-		android:text="@string/setup_new_account"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toTopOf="parent" />
-
-	<Button
-		android:id="@+id/buttonShardsSent"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:drawableLeft="@drawable/ic_repeat"
-		android:text="@string/setup_restore_account"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/buttonSelectThreshold" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/item_custodian.xml

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    xmlns:tools="http://schemas.android.com/tools">
-
-    <CheckBox
-        android:id="@+id/checkBox"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Bob"
-        tools:text="@sample/names.json/names/short_names/name" />
-
-</LinearLayout>

briar-android/src/main/res/menu/conversation_actions.xml

@@ -27,9 +27,4 @@
 		android:title="@string/delete_contact"
 		app:showAsAction="never"/>
 
-	<item
-		android:id="@+id/action_help_recover_account"
-		android:icon="@drawable/introduction_white"
-		android:title="@string/help_recover_account"
-		app:showAsAction="never"/>
 </menu>

briar-android/src/main/res/menu/define_threshold_actions.xml

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<menu
-	xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto">
-
-	<item
-		android:id="@+id/action_threshold_defined"
-		android:icon="@drawable/ic_check_white"
-		android:title="@string/threshold_defined"
-		app:showAsAction="always"/>
-
-</menu>

briar-android/src/main/res/menu/navigation_drawer.xml

@@ -5,27 +5,28 @@
 	<group android:checkableBehavior="single">
 		<item
 			android:id="@+id/nav_btn_contacts"
+			android:checked="true"
 			android:icon="@drawable/ic_contacts"
-			android:title="@string/contact_list_button"/>
+			android:title="@string/contact_list_button" />
 		<item
 			android:id="@+id/nav_btn_groups"
 			android:icon="@drawable/ic_group"
-			android:title="@string/groups_button"/>
+			android:title="@string/groups_button" />
 		<item
 			android:id="@+id/nav_btn_forums"
 			android:icon="@drawable/ic_forums_black_24dp"
-			android:title="@string/forums_button"/>
+			android:title="@string/forums_button" />
 		<item
 			android:id="@+id/nav_btn_blogs"
 			android:icon="@drawable/blogs"
-			android:title="@string/blogs_button"/>
+			android:title="@string/blogs_button" />
 	</group>
 
 	<group android:checkableBehavior="single">
 		<item
 			android:id="@+id/nav_btn_settings"
 			android:icon="@drawable/ic_settings_black"
-			android:title="@string/settings_button"/>
+			android:title="@string/settings_button" />
 		<item
 			android:id="@+id/nav_btn_lock"
 			android:icon="@drawable/startup_lock"
@@ -35,7 +36,7 @@
 		<item
 			android:id="@+id/nav_btn_signout"
 			android:icon="@drawable/ic_signout"
-			android:title="@string/sign_out_button"/>
+			android:title="@string/sign_out_button" />
 	</group>
 
 </menu>

briar-android/src/main/res/values/strings.xml

@@ -638,79 +638,4 @@
 	<!-- This is a message to be used in screenshots. -->
 	<string name="screenshot_message_3">No problem, hope you like it 😀</string>
 
-	<!-- social backup -->
-
-	<!-- settings -->
-
-	<string name="pref_distributed_backup_title">Social backup</string>
-	<string name="pref_distributed_backup_summary">Backup your account using trusted contacts</string>
-
-	<string name="pref_distributed_old_backup_title">Existing Social backup</string>
-	<string name="pref_distributed_old_backup_summary">Information about your most recent social backup</string>
-
-	<!-- social backup procedure -->
-
-	<string name="select_custodians">Select Trusted Contacts:</string>
-
-	<string name="select_at_least_n_contacts">Please select at least %d contacts</string>
-	<string name="select_at_least_n_more_contacts">Please select at least %d more contacts</string>
-
-	<string name="threshold">The minimum number of trusted contacts needed to restore your account:</string>
-	<string name="threshold_secure">Secure</string>
-	<string name="threshold_recommended">Secure - recommended threshold</string>
-	<string name="threshold_low_insecure">Insecure – higher threshold recommended</string>
-	<string name="threshold_high_insecure">Danger of loss – lower threshold recommended</string>
-	<string name="threshold_defined">Choose Threshold</string>
-
-	<string name="backup_done_info">Backup pieces sent to trusted contacts</string>
-	<string name="backup_done_dismiss">Got it</string>
-
-	<string name="backup_created">Backup created 1/6/2020</string>
-
-	<!-- recovery from the secret owner's POV -->
-
-	<string name="recovery_explainer">You need to meet your trusted contacts in-person to receive pieces by scanning QR codes</string>
-	<string name="recovery_begin">Begin</string>
-	<string name="recovery_failed_to_receive">Failed to receive backup piece</string>
-	<string name="recovery_helpful_suggestions">Please check that bluetooth is swtiched on and that no-one but your trusted contact is able to scan the QR code</string>
-	<string name="recovery_retry">Retry</string>
-	<string name="recovery_recovered_shards">Recovered backup pieces:</string>
-	<string name="recovery_scan_qr_code">Scan QR code</string>
-	<string name="recovery_recovering_account">Recovering account…</string>
-	<string name="recovery_shard_received">Account backup piece received</string>
-	<string name="recovery_account_recovered">Account recovered</string>
-
-	<!-- recovery from the custodian's POV -->
-
-	<string name="custodian_recovery_explainer">You need to meet in-person to transfer backup piece</string>
-	<string name="custodian_recovery_failed_to_send">Failed to send backup piece</string>
-	<string name="custodian_scan_code">Scan code</string>
-	<string name="custodian_shard_sent">Account backup piece transmitted</string>
-
-	<!-- titles for the app bar -->
-
-	<string name="title_distributed_backup">Social Backup</string>
-	<string name="title_select_custodians">Select Trusted Contacts</string>
-	<string name="title_define_threshold">Choose Threshold</string>
-	<string name="title_recovery_mode">Recovery Mode</string>
-	<string name="title_help_recover">Help recover account</string>
-
-	<!-- conversation action for custodian -->
-
-	<string name="help_recover_account">Help recover account</string>
-
-	<!-- setup screen -->
-
-	<string name="setup_new_account">Create new account</string>
-	<string name="setup_restore_account">Restore account from backup</string>
-
-	<!-- Symbols for visualising threshold values for social backup -->
-	<string name="filled_bullet">\u25CF</string>
-    <string name="linear_bullet">\u25CB</string>
-
-	<!-- activity names -->
-	<string name="activity_name_distributed_backup">Social Backup</string>
-	<string name="activity_name_old_distributed_backup">Old Social Backup</string>
-
-	<string name="activity_name_new_or_recover_account">Create new account or recover existing account</string>
 </resources>

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

@@ -90,17 +90,6 @@
 		android:layout="@layout/preferences_category"
 		android:title="@string/security_settings_title">
 
-		<Preference
-			android:summary="@string/pref_distributed_backup_summary"
-			android:title="@string/pref_distributed_backup_title"
-			app:iconSpaceReserved="false">
-
-			<intent
-				android:targetClass="org.briarproject.briar.android.socialbackup.DistributedBackupActivity"
-				android:targetPackage="@string/app_package" />
-
-		</Preference>
-
 		<SwitchPreference
 			android:enabled="false"
 			android:key="pref_key_lock"

briar-android/witness.gradle

@@ -1,7 +1,7 @@
 dependencyVerification {
     verify = [
         'androidx.activity:activity-ktx:1.1.0:activity-ktx-1.1.0.aar:1996c36d3d2d62db5020b8ec634b5f854b1a698960c3552e1a00c69221baeabe',
-        'androidx.activity:activity:1.1.0:activity-1.1.0.aar:4f2b35916768032f7d0c20e250e28b29037ed4ce9ebf3da4fcd51bcb0c6067ef',
+        'androidx.activity:activity:1.2.0:activity-1.2.0.aar:ac27a810554e47b2122bce1f338934e77b173a5a9267eb35f134b6d34f931bae',
         'androidx.annotation:annotation-experimental:1.0.0:annotation-experimental-1.0.0.aar:b219d2b568e7e4ba534e09f8c2fd242343df6ccbdfbbe938846f5d740e6b0b11',
         'androidx.annotation:annotation:1.1.0:annotation-1.1.0.jar:d38d63edb30f1467818d50aaf05f8a692dea8b31392a049bfa991b159ad5b692',
         'androidx.appcompat:appcompat-resources:1.2.0:appcompat-resources-1.2.0.aar:c470297c03ff3de1c3d15dacf0be0cae63abc10b52f021dd07ae28daa3100fe5',
@@ -24,29 +24,28 @@ dependencyVerification {
         'androidx.exifinterface:exifinterface:1.3.1:exifinterface-1.3.1.aar:ef168daa6eb744c8395c22b49afa5235e6099868a0377175b6d5e3cdff8d7ffc',
         'androidx.fragment:fragment-ktx:1.2.5:fragment-ktx-1.2.5.aar:50f0f3b734f93829eeac7456b7cb13e5430741e555c535911a958ee4a8242bca',
         'androidx.fragment:fragment-testing:1.2.5:fragment-testing-1.2.5.aar:ef3cc3387115f9187665b283e313b13a2bb8826673380317057e2972351df09c',
-        'androidx.fragment:fragment:1.2.4:fragment-1.2.4.aar:1dc194942574302bf35dae7b81b82273505ec2d38f81d9258ad5c0448daddd82',
-        'androidx.fragment:fragment:1.2.5:fragment-1.2.5.aar:d19e82d142def6c4e136da70bf92f194c0ecc61d14ab4e84567b2ced0920fa93',
+        'androidx.fragment:fragment:1.3.0:fragment-1.3.0.aar:66db3ed2b11bb5e572a079b87cd3fae9bc5c33c373c71b25f1e3eac7607ab526',
         'androidx.interpolator:interpolator:1.0.0:interpolator-1.0.0.aar:33193135a64fe21fa2c35eec6688f1a76e512606c0fc83dc1b689e37add7732a',
         'androidx.legacy:legacy-support-core-utils:1.0.0:legacy-support-core-utils-1.0.0.aar:a7edcf01d5b52b3034073027bc4775b78a4764bb6202bb91d61c829add8dd1c7',
-        'androidx.lifecycle:lifecycle-common:2.2.0:lifecycle-common-2.2.0.jar:63898dabf7cfe5ec5d7ed8b8c2564c1427be876e1496ead95c2703cf59d3734b',
+        'androidx.lifecycle:lifecycle-common:2.3.0:lifecycle-common-2.3.0.jar:15848fb56db32f4c7cdc72b324003183d52a4884d6bf09be708ac7f587d139b5',
         'androidx.lifecycle:lifecycle-extensions:2.2.0:lifecycle-extensions-2.2.0.aar:648c8de1d10b025d524a2e46ac994fc3f6bf186826c09ec1a62d250bf1b877ae',
         'androidx.lifecycle:lifecycle-livedata-core-ktx:2.2.0:lifecycle-livedata-core-ktx-2.2.0.aar:5951f882e95b7e05ceb9adfca0fa2ebd511d63ea5a00da4eae6c6d0c1903da18',
-        'androidx.lifecycle:lifecycle-livedata-core:2.2.0:lifecycle-livedata-core-2.2.0.aar:556c1f3af90aa9d7d0d330565adbf6da71b2429148bac91e07c485f4f9abf614',
+        'androidx.lifecycle:lifecycle-livedata-core:2.3.0:lifecycle-livedata-core-2.3.0.aar:89f480888f2bb8eb62d9b7b1eb34be69b59ec84b24a1b0bdbeb49973478c6da3',
         'androidx.lifecycle:lifecycle-livedata:2.2.0:lifecycle-livedata-2.2.0.aar:d83af94860aa9f64cbdc51f40796a7cf55b116f0e6efd752e845c0104c8b16f6',
         'androidx.lifecycle:lifecycle-process:2.2.0:lifecycle-process-2.2.0.aar:3a977e7778fc8418742d388409daaba7ea8fea8823d21ffb96e4c4236f715070',
         'androidx.lifecycle:lifecycle-runtime-ktx:2.2.0:lifecycle-runtime-ktx-2.2.0.aar:c29fc87694e6ce116b61207221e53ed285862a6628055790b0bcf9ce45d8cc68',
-        'androidx.lifecycle:lifecycle-runtime:2.2.0:lifecycle-runtime-2.2.0.aar:2f866c07a1f33a8c9bb69a9545d4f20b4f0628cd0a155432386d7cb081e1e0bc',
+        'androidx.lifecycle:lifecycle-runtime:2.3.0:lifecycle-runtime-2.3.0.aar:94f528fd5fb123f75b6e65d07a6ef5cd6c0e69ac604d106aaa12705282456234',
         'androidx.lifecycle:lifecycle-service:2.2.0:lifecycle-service-2.2.0.aar:ca2801ffc069555afed8eddd2292130f436956452bc8bbad30fb56f8e4e382a0',
         'androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0:lifecycle-viewmodel-ktx-2.2.0.aar:f791001f2211947e56ad3d96d12c9ae93fc5589b88f08603f69a2265c9a7d702',
-        'androidx.lifecycle:lifecycle-viewmodel-savedstate:2.2.0:lifecycle-viewmodel-savedstate-2.2.0.aar:3ce866fb822b20fe2f188f974992869a0a6233fe40acbefcff090d6def5e7f33',
-        'androidx.lifecycle:lifecycle-viewmodel:2.2.0:lifecycle-viewmodel-2.2.0.aar:967efab24d6c49dd414a8c0ac4a1cd09b018f0b8bb43b739ad360c4158ebde27',
+        'androidx.lifecycle:lifecycle-viewmodel-savedstate:2.3.0:lifecycle-viewmodel-savedstate-2.3.0.aar:49f9532b5104cc1ee64900ed4f696d031d807fba726e0d5d6a52459e8fba4a1d',
+        'androidx.lifecycle:lifecycle-viewmodel:2.3.0:lifecycle-viewmodel-2.3.0.aar:cea8f26fa232037922b69af9cd1bde2df1211acc8b75253e425b7150a5fca59d',
         'androidx.loader:loader:1.0.0:loader-1.0.0.aar:11f735cb3b55c458d470bed9e25254375b518b4b1bad6926783a7026db0f5025',
         'androidx.localbroadcastmanager:localbroadcastmanager:1.0.0:localbroadcastmanager-1.0.0.aar:e71c328ceef5c4a7d76f2d86df1b65d65fe2acf868b1a4efd84a3f34336186d8',
         'androidx.preference:preference:1.1.1:preference-1.1.1.aar:317dcbc38242aea2f6262c06d51b8a22827e98959967edd40f82600a15cb4bff',
         'androidx.print:print:1.0.0:print-1.0.0.aar:1d5c7f3135a1bba661fc373fd72e11eb0a4adbb3396787826dd8e4190d5d9edd',
         'androidx.recyclerview:recyclerview-selection:1.1.0-rc03:recyclerview-selection-1.1.0-rc03.aar:a548a0771c2c8ca8cf98f1f755b0eef4fac73d1697e6eeb1a6383f557e0eba13',
         'androidx.recyclerview:recyclerview:1.1.0:recyclerview-1.1.0.aar:f0d2b5a67d0a91ee1b1c73ef2b636a81f3563925ddd15a1d4e1c41ec28de7a4f',
-        'androidx.savedstate:savedstate:1.0.0:savedstate-1.0.0.aar:2510a5619c37579c9ce1a04574faaf323cd0ffe2fc4e20fa8f8f01e5bb402e83',
+        'androidx.savedstate:savedstate:1.1.0:savedstate-1.1.0.aar:d60bbe44c2c08083a17c5dc678a6d6b4d0a2d664858016ab5c049cbea90a63b7',
         'androidx.test.espresso:espresso-contrib:3.3.0:espresso-contrib-3.3.0.aar:f400cabdc181356acf6b210e4509dcb9649d9e2b6b6e218c60fcfc15e8a756d1',
         'androidx.test.espresso:espresso-core:3.3.0:espresso-core-3.3.0.aar:23ebf6014645e0c60aec7d1ed924d4d4c848ae8c3673b7d8d06b2ec6a56cafee',
         'androidx.test.espresso:espresso-idling-resource:3.3.0:espresso-idling-resource-3.3.0.aar:29519b112731f289cc6e2f9b2eccc5ea72c754b04272bb93370f45d7e170a7c6',
@@ -57,6 +56,7 @@ dependencyVerification {
         'androidx.test:monitor:1.3.0:monitor-1.3.0.aar:f73a31306a783e63150c60c49e140dc38da39a1b7947690f4b73387b5ebad77e',
         'androidx.test:rules:1.3.0:rules-1.3.0.aar:c1753946c498b0d5d7cf341cfed661f66915c4c9deb4ed10462a08ae33b2429a',
         'androidx.test:runner:1.3.0:runner-1.3.0.aar:61d13f5a9fcbbd73ba18fa84e1d6a0111c6e1c665a89b418126966e61fffd93b',
+        'androidx.tracing:tracing:1.0.0:tracing-1.0.0.aar:07b8b6139665b884a162eccf97891ca50f7f56831233bf25168ae04f7b568612',
         'androidx.transition:transition:1.2.0:transition-1.2.0.aar:a1e059b3bc0b43a58dec0efecdcaa89c82d2bca552ea5bacf6656c46e853157e',
         'androidx.vectordrawable:vectordrawable-animated:1.1.0:vectordrawable-animated-1.1.0.aar:76da2c502371d9c38054df5e2b248d00da87809ed058f3363eae87ce5e2403f8',
         'androidx.vectordrawable:vectordrawable:1.1.0:vectordrawable-1.1.0.aar:46fd633ac01b49b7fcabc263bf098c5a8b9e9a69774d234edcca04fb02df8e26',
@@ -110,32 +110,28 @@ dependencyVerification {
         'com.google.auto:auto-common:0.8:auto-common-0.8.jar:97db1709f57b91b32edacb596ef4641872f227b7d99ad90e467f0d77f5ba134a',
         'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
         'com.google.code.gson:gson:2.8.5:gson-2.8.5.jar:233a0149fc365c9f6edbd683cfe266b19bdc773be98eabdaf6b3c924b48e7d81',
-        'com.google.code.gson:gson:2.8.6:gson-2.8.6.jar:c8fb4839054d280b3033f800d1f5a97de2f028eb8ba2eb458ad287e536f3f25f',
         'com.google.dagger:dagger-compiler:2.24:dagger-compiler-2.24.jar:3c5afb955fb188da485cb2c048eff37dce0e1530b9780a0f2f7187d16d1ccc1f',
         'com.google.dagger:dagger-producers:2.24:dagger-producers-2.24.jar:f10f45b95191954d5d6b043fca9e62fb621d21bf70634b8f8476c7988b504c3a',
         'com.google.dagger:dagger-spi:2.24:dagger-spi-2.24.jar:c038445d14dbcb4054e61bf49e05009edf26fce4fdc7ec1a9db544784f68e718',
         'com.google.dagger:dagger:2.24:dagger-2.24.jar:550a6e46a6dfcdf1d764887b6090cea94f783327e50e5c73754f18facfc70b64',
         'com.google.errorprone:error_prone_annotations:2.2.0:error_prone_annotations-2.2.0.jar:6ebd22ca1b9d8ec06d41de8d64e0596981d9607b42035f9ed374f9de271a481a',
         'com.google.errorprone:error_prone_annotations:2.3.2:error_prone_annotations-2.3.2.jar:357cd6cfb067c969226c442451502aee13800a24e950fdfde77bcdb4565a668d',
-        'com.google.errorprone:error_prone_annotations:2.3.4:error_prone_annotations-2.3.4.jar:baf7d6ea97ce606c53e11b6854ba5f2ce7ef5c24dddf0afa18d1260bd25b002c',
         'com.google.errorprone:javac-shaded:9-dev-r4023-3:javac-shaded-9-dev-r4023-3.jar:65bfccf60986c47fbc17c9ebab0be626afc41741e0a6ec7109e0768817a36f30',
         'com.google.googlejavaformat:google-java-format:1.5:google-java-format-1.5.jar:aa19ad7850fb85178aa22f2fddb163b84d6ce4d0035872f30d4408195ca1144e',
         'com.google.guava:failureaccess:1.0.1:failureaccess-1.0.1.jar:a171ee4c734dd2da837e4b16be9df4661afab72a41adaf31eb84dfdaf936ca26',
+        'com.google.guava:guava:27.0.1-jre:guava-27.0.1-jre.jar:e1c814fd04492a27c38e0317eabeaa1b3e950ec8010239e400fe90ad6c9107b4',
         'com.google.guava:guava:27.1-jre:guava-27.1-jre.jar:4a5aa70cc968a4d137e599ad37553e5cfeed2265e8c193476d7119036c536fe7',
-        'com.google.guava:guava:28.1-android:guava-28.1-android.jar:e112ce92c0f0733965eede73d94589c59a72128b06b08bba5ebe2f9ea672ef60',
         'com.google.guava:guava:28.1-jre:guava-28.1-jre.jar:30beb8b8527bd07c6e747e77f1a92122c2f29d57ce347461a4a55eb26e382da4',
         'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava:listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:b372a037d4230aa57fbeffdef30fd6123f9c0c2db85d0aced00c91b974f33f99',
         'com.google.j2objc:j2objc-annotations:1.1:j2objc-annotations-1.1.jar:2994a7eb78f2710bd3d3bfb639b2c94e219cedac0d4d084d516e78c16dddecf6',
         'com.google.j2objc:j2objc-annotations:1.3:j2objc-annotations-1.3.jar:21af30c92267bd6122c0e0b4d20cccb6641a37eaf956c6540ec471d584e64a7b',
         'com.google.jimfs:jimfs:1.1:jimfs-1.1.jar:c4828e28d7c0a930af9387510b3bada7daa5c04d7c25a75c7b8b081f1c257ddd',
-        'com.google.protobuf:protobuf-java-util:3.11.4:protobuf-java-util-3.11.4.jar:29aacfff1cc455102627d4cfe6f319e4864ea7ce1a4e9d03b4c7bb01fc8255b0',
+        'com.google.protobuf:protobuf-java:2.6.1:protobuf-java-2.6.1.jar:55aa554843983f431df5616112cf688d38aa17c132357afd1c109435bfdac4e6',
         'com.google.protobuf:protobuf-java:3.10.0:protobuf-java-3.10.0.jar:161d7d61a8cb3970891c299578702fd079646e032329d6c2cabf998d191437c9',
-        'com.google.protobuf:protobuf-java:3.11.4:protobuf-java-3.11.4.jar:42e98f58f53d1a49fd734c2dd193880f2dfec3436a2993a00d06b8800a22a3f2',
         'com.google.zxing:core:3.3.3:core-3.3.3.jar:5820f81e943e4bce0329306621e2d6255d2930b0a6ce934c5c23c0d6d3f20599',
         'com.googlecode.json-simple:json-simple:1.1:json-simple-1.1.jar:2d9484f4c649f708f47f9a479465fc729770ee65617dca3011836602264f6439',
         'com.ibm.icu:icu4j:53.1:icu4j-53.1.jar:e37a4467bac5cdeb02c5c4b8e5063d2f4e67b69e3c7df6d6b610f13185572bab',
         'com.jraska:falcon:2.1.1:falcon-2.1.1.aar:827f06556b7fa599f29a48a5277df39ca3dce5080d4ea6f9ea1f9c7b6b78bb7a',
-        'com.madgag.spongycastle:core:1.58.0.0:core-1.58.0.0.jar:199617dd5698c5a9312b898c0a4cec7ce9dd8649d07f65d91629f58229d72728',
         'com.squareup:javapoet:1.11.1:javapoet-1.11.1.jar:9cbf2107be499ec6e95afd36b58e3ca122a24166cdd375732e51267d64058e90',
         'com.squareup:javawriter:2.1.1:javawriter-2.1.1.jar:f699823d0081f69cbb676c1845ea222e0ada79bc88a53e5d22d8bd02d328f57e',
         'com.squareup:javawriter:2.5.0:javawriter-2.5.0.jar:fcfb09fb0ea0aa97d3cfe7ea792398081348e468f126b3603cb3803f240197f0',
@@ -160,8 +156,6 @@ dependencyVerification {
         'nekohtml:xercesMinimal:1.9.6.2:xercesMinimal-1.9.6.2.jar:95b8b357d19f63797dd7d67622fd3f18374d64acbc6584faba1c7759a31e8438',
         'net.bytebuddy:byte-buddy-agent:1.9.10:byte-buddy-agent-1.9.10.jar:8ed739d29132103250d307d2e8e3c95f07588ef0543ab11d2881d00768a5e182',
         'net.bytebuddy:byte-buddy:1.9.10:byte-buddy-1.9.10.jar:2936debc4d7b6c534848d361412e2d0f8bd06f7f27a6f4e728a20e97648d2bf3',
-        'net.i2p.crypto:eddsa:0.2.0:eddsa-0.2.0.jar:a7cb1b85c16e2f0730b9204106929a1d9aaae1df728adc7041a8b8b605692140',
-        'net.java.dev.jna:jna:5.5.0:jna-5.5.0.aar:12ef4a3c2ea685c9c816caa6a77ae8f17bb7727d8460f249925409acda270101',
         'net.ltgt.gradle.incap:incap:0.2:incap-0.2.jar:b625b9806b0f1e4bc7a2e3457119488de3cd57ea20feedd513db070a573a4ffd',
         'net.sf.jopt-simple:jopt-simple:4.9:jopt-simple-4.9.jar:26c5856e954b5f864db76f13b86919b59c6eecf9fd930b96baa8884626baf2f5',
         'net.sf.kxml:kxml2:2.3.0:kxml2-2.3.0.jar:f264dd9f79a1fde10ce5ecc53221eff24be4c9331c830b7d52f2f08a7b633de2',
@@ -190,7 +184,6 @@ dependencyVerification {
         'org.bouncycastle:bcprov-jdk15on:1.52:bcprov-jdk15on-1.52.jar:0dc4d181e4d347893c2ddbd2e6cd5d7287fc651c03648fa64b2341c7366b1773',
         'org.bouncycastle:bcprov-jdk15on:1.56:bcprov-jdk15on-1.56.jar:963e1ee14f808ffb99897d848ddcdb28fa91ddda867eb18d303e82728f878349',
         'org.checkerframework:checker-compat-qual:2.5.3:checker-compat-qual-2.5.3.jar:d76b9afea61c7c082908023f0cbc1427fab9abd2df915c8b8a3e7a509bccbc6d',
-        'org.checkerframework:checker-compat-qual:2.5.5:checker-compat-qual-2.5.5.jar:11d134b245e9cacc474514d2d66b5b8618f8039a1465cdc55bbc0b34e0008b7a',
         'org.checkerframework:checker-qual:2.5.2:checker-qual-2.5.2.jar:64b02691c8b9d4e7700f8ee2e742dce7ea2c6e81e662b7522c9ee3bf568c040a',
         'org.checkerframework:checker-qual:2.8.1:checker-qual-2.8.1.jar:9103499008bcecd4e948da29b17864abb64304e15706444ae209d17ebe0575df',
         'org.codehaus.groovy:groovy-all:2.4.15:groovy-all-2.4.15.jar:51d6c4e71782e85674239189499854359d380fb75e1a703756e3aaa5b98a5af0',
@@ -220,9 +213,6 @@ dependencyVerification {
         'org.jmock:jmock-testjar:2.8.2:jmock-testjar-2.8.2.jar:8900860f72c474e027cf97fe78dcbf154a1aa7fc62b6845c5fb4e4f3c7bc8760',
         'org.jmock:jmock:2.8.2:jmock-2.8.2.jar:6c73cb4a2e6dbfb61fd99c9a768539c170ab6568e57846bd60dbf19596b65b16',
         'org.jvnet.staxex:stax-ex:1.8:stax-ex-1.8.jar:95b05d9590af4154c6513b9c5dc1fb2e55b539972ba0a9ef28e9a0c01d83ad77',
-        'org.magmacollective.darkcrystal:dark-crystal-key-backup-crypto:1.0.0:dark-crystal-key-backup-crypto-1.0.0.jar:7c808f30314f7bc0c715b53415b07bd7e9a6bbcc55e5f672a296e5298d335f78',
-        'org.magmacollective.darkcrystal:dark-crystal-secret-sharing-wrapper:1.1.0:dark-crystal-secret-sharing-wrapper-1.1.0.aar:b8cac2348b9e652de413fa587168e9bb6ff36f6eea4bd1c72d3ecd56fc186e09',
-        'org.magmacollective.darkcrystal:shamir-secret-sharing-jna:1.0.0:shamir-secret-sharing-jna-1.0.0.aar:cdccfaf74dc1fcf30799a45d034c406315ce8507a8f4382eee118a66fb229ced',
         'org.mockito:mockito-core:3.1.0:mockito-core-3.1.0.jar:89b09e518e04f5c35f5ccf7abe45e72f594070a53d95cc2579001bd392c5afa6',
         'org.objenesis:objenesis:2.6:objenesis-2.6.jar:5e168368fbc250af3c79aa5fef0c3467a2d64e5a7bd74005f25d8399aeb0708d',
         'org.ow2.asm:asm-analysis:7.0:asm-analysis-7.0.jar:e981f8f650c4d900bb033650b18e122fa6b161eadd5f88978d08751f72ee8474',
@@ -241,7 +231,6 @@ dependencyVerification {
         'org.robolectric:shadows-framework:4.3.1:shadows-framework-4.3.1.jar:9c69db134cdd79be751856a148020fd9b32b086bb491846eedc0a1106fcadd5e',
         'org.robolectric:utils-reflector:4.3.1:utils-reflector-4.3.1.jar:9d7bf2557947d44d6f3ed76ec5231e8b72e33eb61c65ac9e149ad307b0eb936c',
         'org.robolectric:utils:4.3.1:utils-4.3.1.jar:6f9e406cd667019a5450e473c4e2d372bff9c9ab6ef55aafcbc9843109cb1519',
-        'org.whispersystems:curve25519-java:0.5.0:curve25519-java-0.5.0.jar:0aadd43cf01d11e9b58f867b3c4f25c3194e8b0623d1953d32dfbfbee009e38d',
         'tools.fastlane:screengrab:2.0.0:screengrab-2.0.0.aar:15ac15eb7c371db05e721be8d466567c2b7274b767d91478e781b6d89ee5d3d0',
         'uk.co.samuelwall:material-tap-target-prompt:3.0.0:material-tap-target-prompt-3.0.0.aar:e4d3c472b2d378e39a6535b7788e6c790fc9dde2d7659974e006ed8c7260911d',
     ]

briar-api/src/main/java/org/briarproject/briar/api/socialbackup/BackupExistsException.java

@@ -1,11 +0,0 @@
-package org.briarproject.briar.api.socialbackup;
-
-import org.briarproject.bramble.api.db.DbException;
-
-/**
- * Thrown when an attempt is made to create a social account backup but a
- * backup already exists. This exception may occur due to concurrent updates
- * and does not indicate a database error.
- */
-public class BackupExistsException extends DbException {
-}

briar-api/src/main/java/org/briarproject/briar/api/socialbackup/BackupMetadata.java

@@ -1,42 +0,0 @@
-package org.briarproject.briar.api.socialbackup;
-
-import org.briarproject.bramble.api.crypto.SecretKey;
-import org.briarproject.bramble.api.identity.Author;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import java.util.List;
-
-import javax.annotation.concurrent.Immutable;
-
-@Immutable
-@NotNullByDefault
-public class BackupMetadata {
-
-	private final SecretKey secret;
-	private final List<Author> custodians;
-	private final int threshold, version;
-
-	public BackupMetadata(SecretKey secret, List<Author> custodians,
-			int threshold, int version) {
-		this.secret = secret;
-		this.custodians = custodians;
-		this.threshold = threshold;
-		this.version = version;
-	}
-
-	public SecretKey getSecret() {
-		return secret;
-	}
-
-	public List<Author> getCustodians() {
-		return custodians;
-	}
-
-	public int getThreshold() {
-		return threshold;
-	}
-
-	public int getVersion() {
-		return version;
-	}
-}

briar-api/src/main/java/org/briarproject/briar/api/socialbackup/DarkCrystal.java

@@ -1,15 +0,0 @@
-package org.briarproject.briar.api.socialbackup;
-
-import org.briarproject.bramble.api.crypto.SecretKey;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import java.security.GeneralSecurityException;
-import java.util.List;
-
-@NotNullByDefault
-public
-interface DarkCrystal {
-
-	List<Shard> createShards(SecretKey secret, int shards, int threshold);
-	SecretKey combineShards(List<Shard> shards) throws GeneralSecurityException;
-}

briar-api/src/main/java/org/briarproject/briar/api/socialbackup/Shard.java

@@ -1,25 +0,0 @@
-package org.briarproject.briar.api.socialbackup;
-
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import javax.annotation.concurrent.Immutable;
-
-@Immutable
-@NotNullByDefault
-public class Shard {
-
-	private final byte[] secretId, shard;
-
-	public Shard(byte[] secretId, byte[] shard) {
-		this.secretId = secretId;
-		this.shard = shard;
-	}
-
-	public byte[] getSecretId() {
-		return secretId;
-	}
-
-	public byte[] getShard() {
-		return shard;
-	}
-}

briar-api/src/main/java/org/briarproject/briar/api/socialbackup/SocialBackupManager.java

@@ -1,47 +0,0 @@
-package org.briarproject.briar.api.socialbackup;
-
-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 java.util.List;
-
-import javax.annotation.Nullable;
-
-@NotNullByDefault
-public interface SocialBackupManager {
-
-	/**
-	 * The unique ID of the social backup client.
-	 */
-	ClientId CLIENT_ID = new ClientId("pw.darkcrystal.backup");
-
-	/**
-	 * The current major version of the social backup client.
-	 */
-	int MAJOR_VERSION = 0;
-
-	/**
-	 * The current minor version of the social backup client.
-	 */
-	int MINOR_VERSION = 0;
-
-	/**
-	 * Returns the metadata for this device's backup, or null if no backup has
-	 * been created.
-	 */
-	@Nullable
-	BackupMetadata getBackupMetadata(Transaction txn) throws DbException;
-
-	/**
-	 * Creates a backup for this device using the given custodians and
-	 * threshold. The encrypted backup and a shard of the backup key will be
-	 * sent to each custodian.
-	 *
-	 * @throws BackupExistsException If a backup already exists
-	 */
-	void createBackup(Transaction txn, List<ContactId> custodianIds,
-			int threshold) throws DbException;
-}

briar-core/src/main/java/org/briarproject/briar/BriarCoreEagerSingletons.java

@@ -10,7 +10,6 @@ import org.briarproject.briar.messaging.MessagingModule;
 import org.briarproject.briar.privategroup.PrivateGroupModule;
 import org.briarproject.briar.privategroup.invitation.GroupInvitationModule;
 import org.briarproject.briar.sharing.SharingModule;
-import org.briarproject.briar.socialbackup.SocialBackupModule;
 
 public interface BriarCoreEagerSingletons {
 
@@ -34,8 +33,6 @@ public interface BriarCoreEagerSingletons {
 
 	void inject(SharingModule.EagerSingletons init);
 
-	void inject(SocialBackupModule.EagerSingletons init);
-
 	class Helper {
 
 		public static void injectEagerSingletons(BriarCoreEagerSingletons c) {
@@ -49,7 +46,6 @@ public interface BriarCoreEagerSingletons {
 			c.inject(new SharingModule.EagerSingletons());
 			c.inject(new IdentityModule.EagerSingletons());
 			c.inject(new IntroductionModule.EagerSingletons());
-			c.inject(new SocialBackupModule.EagerSingletons());
 		}
 	}
 }

briar-core/src/main/java/org/briarproject/briar/BriarCoreModule.java

@@ -13,7 +13,6 @@ import org.briarproject.briar.messaging.MessagingModule;
 import org.briarproject.briar.privategroup.PrivateGroupModule;
 import org.briarproject.briar.privategroup.invitation.GroupInvitationModule;
 import org.briarproject.briar.sharing.SharingModule;
-import org.briarproject.briar.socialbackup.SocialBackupModule;
 import org.briarproject.briar.test.TestModule;
 
 import dagger.Module;
@@ -32,7 +31,6 @@ import dagger.Module;
 		MessagingModule.class,
 		PrivateGroupModule.class,
 		SharingModule.class,
-		SocialBackupModule.class,
 		TestModule.class
 })
 public class BriarCoreModule {

briar-core/src/main/java/org/briarproject/briar/socialbackup/BackupMetadataEncoder.java

@@ -1,11 +0,0 @@
-package org.briarproject.briar.socialbackup;
-
-import org.briarproject.bramble.api.data.BdfDictionary;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.briar.api.socialbackup.BackupMetadata;
-
-@NotNullByDefault
-interface BackupMetadataEncoder {
-
-	BdfDictionary encodeBackupMetadata(BackupMetadata backupMetadata);
-}

briar-core/src/main/java/org/briarproject/briar/socialbackup/BackupMetadataEncoderImpl.java

@@ -1,42 +0,0 @@
-package org.briarproject.briar.socialbackup;
-
-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.identity.Author;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.briar.api.socialbackup.BackupMetadata;
-
-import javax.annotation.concurrent.Immutable;
-import javax.inject.Inject;
-
-import static org.briarproject.briar.socialbackup.SocialBackupConstants.GROUP_KEY_CUSTODIANS;
-import static org.briarproject.briar.socialbackup.SocialBackupConstants.GROUP_KEY_SECRET;
-import static org.briarproject.briar.socialbackup.SocialBackupConstants.GROUP_KEY_THRESHOLD;
-import static org.briarproject.briar.socialbackup.SocialBackupConstants.GROUP_KEY_VERSION;
-
-@Immutable
-@NotNullByDefault
-class BackupMetadataEncoderImpl implements BackupMetadataEncoder {
-
-	private final ClientHelper clientHelper;
-
-	@Inject
-	BackupMetadataEncoderImpl(ClientHelper clientHelper) {
-		this.clientHelper = clientHelper;
-	}
-
-	@Override
-	public BdfDictionary encodeBackupMetadata(BackupMetadata backupMetadata) {
-		BdfList custodians = new BdfList();
-		for (Author custodian : backupMetadata.getCustodians()) {
-			custodians.add(clientHelper.toList(custodian));
-		}
-		BdfDictionary meta = new BdfDictionary();
-		meta.put(GROUP_KEY_SECRET, backupMetadata.getSecret().getBytes());
-		meta.put(GROUP_KEY_CUSTODIANS, custodians);
-		meta.put(GROUP_KEY_THRESHOLD, backupMetadata.getThreshold());
-		meta.put(GROUP_KEY_VERSION, backupMetadata.getVersion());
-		return meta;
-	}
-}

briar-core/src/main/java/org/briarproject/briar/socialbackup/BackupMetadataParser.java

@@ -1,16 +0,0 @@
-package org.briarproject.briar.socialbackup;
-
-import org.briarproject.bramble.api.FormatException;
-import org.briarproject.bramble.api.data.BdfDictionary;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.briar.api.socialbackup.BackupMetadata;
-
-import javax.annotation.Nullable;
-
-@NotNullByDefault
-interface BackupMetadataParser {
-
-	@Nullable
-	BackupMetadata parseBackupMetadata(BdfDictionary meta)
-			throws FormatException;
-}

briar-core/src/main/java/org/briarproject/briar/socialbackup/BackupMetadataParserImpl.java

@@ -1,51 +0,0 @@
-package org.briarproject.briar.socialbackup;
-
-import org.briarproject.bramble.api.FormatException;
-import org.briarproject.bramble.api.client.ClientHelper;
-import org.briarproject.bramble.api.crypto.SecretKey;
-import org.briarproject.bramble.api.data.BdfDictionary;
-import org.briarproject.bramble.api.data.BdfList;
-import org.briarproject.bramble.api.identity.Author;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.briar.api.socialbackup.BackupMetadata;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import javax.annotation.Nullable;
-import javax.annotation.concurrent.Immutable;
-import javax.inject.Inject;
-
-import static org.briarproject.briar.socialbackup.SocialBackupConstants.GROUP_KEY_CUSTODIANS;
-import static org.briarproject.briar.socialbackup.SocialBackupConstants.GROUP_KEY_SECRET;
-import static org.briarproject.briar.socialbackup.SocialBackupConstants.GROUP_KEY_THRESHOLD;
-import static org.briarproject.briar.socialbackup.SocialBackupConstants.GROUP_KEY_VERSION;
-
-@Immutable
-@NotNullByDefault
-class BackupMetadataParserImpl implements BackupMetadataParser {
-
-	private final ClientHelper clientHelper;
-
-	@Inject
-	BackupMetadataParserImpl(ClientHelper clientHelper) {
-		this.clientHelper = clientHelper;
-	}
-
-	@Nullable
-	@Override
-	public BackupMetadata parseBackupMetadata(BdfDictionary meta)
-			throws FormatException {
-		if (meta.isEmpty()) return null;
-		SecretKey secret = new SecretKey(meta.getRaw(GROUP_KEY_SECRET));
-		BdfList bdfCustodians = meta.getList(GROUP_KEY_CUSTODIANS);
-		List<Author> custodians = new ArrayList<>(bdfCustodians.size());
-		for (int i = 0; i < bdfCustodians.size(); i++) {
-			BdfList author = bdfCustodians.getList(i);
-			custodians.add(clientHelper.parseAndValidateAuthor(author));
-		}
-		int threshold = meta.getLong(GROUP_KEY_THRESHOLD).intValue();
-		int version = meta.getLong(GROUP_KEY_VERSION).intValue();
-		return new BackupMetadata(secret, custodians, threshold, version);
-	}
-}

briar-core/src/main/java/org/briarproject/briar/socialbackup/BackupPayload.java

@@ -1,15 +0,0 @@
-package org.briarproject.briar.socialbackup;
-
-import org.briarproject.bramble.api.Bytes;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import javax.annotation.concurrent.Immutable;
-
-@Immutable
-@NotNullByDefault
-class BackupPayload extends Bytes {
-
-	BackupPayload(byte[] payload) {
-		super(payload);
-	}
-}

briar-core/src/main/java/org/briarproject/briar/socialbackup/BackupPayloadEncoder.java

@@ -1,14 +0,0 @@
-package org.briarproject.briar.socialbackup;
-
-import org.briarproject.bramble.api.crypto.SecretKey;
-import org.briarproject.bramble.api.identity.Identity;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import java.util.List;
-
-@NotNullByDefault
-interface BackupPayloadEncoder {
-
-	BackupPayload encodeBackupPayload(SecretKey secret, Identity identity,
-			List<ContactData> contactData, int version);
-}