Start work on an integration test

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/recover/OwnerReturnShardViewModel.java

@@ -6,7 +6,6 @@ import android.net.wifi.WifiInfo;
 import android.net.wifi.WifiManager;
 import android.util.DisplayMetrics;
 
-import org.briarproject.bramble.api.Pair;
 import org.briarproject.bramble.api.lifecycle.IoExecutor;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.system.AndroidExecutor;
@@ -16,16 +15,13 @@ import org.briarproject.briar.android.viewmodel.MutableLiveEvent;
 import org.briarproject.briar.api.socialbackup.recovery.SecretOwnerTask;
 
 import java.net.InetAddress;
-import java.net.InterfaceAddress;
 import java.net.UnknownHostException;
 import java.nio.charset.Charset;
-import java.util.List;
 import java.util.concurrent.Executor;
 import java.util.logging.Logger;
 
 import javax.inject.Inject;
 
-import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
 import androidx.lifecycle.AndroidViewModel;
 import androidx.lifecycle.LiveData;
@@ -36,7 +32,8 @@ import static java.util.logging.Level.INFO;
 import static java.util.logging.Logger.getLogger;
 
 @NotNullByDefault
-class OwnerReturnShardViewModel extends AndroidViewModel implements SecretOwnerTask.Observer {
+class OwnerReturnShardViewModel extends AndroidViewModel
+		implements SecretOwnerTask.Observer {
 
 	private static final Logger LOG =
 			getLogger(OwnerReturnShardViewModel.class.getName());
@@ -123,6 +120,8 @@ class OwnerReturnShardViewModel extends AndroidViewModel implements SecretOwnerT
 	@UiThread
 	private void startListening() {
 		ioExecutor.execute(() -> {
+			task.cancel();
+			// wait until really cancelled
 			task.start(this, getWifiIpv4Address());
 		});
 //		KeyAgreementTask oldTask = task;
@@ -142,8 +141,6 @@ class OwnerReturnShardViewModel extends AndroidViewModel implements SecretOwnerT
 	}
 
 
-
-
 	/**
 	 * Set to true in onPostResume() and false in onPause(). This prevents the
 	 * QR code fragment from being shown if onRequestPermissionsResult() is
@@ -175,9 +172,11 @@ class OwnerReturnShardViewModel extends AndroidViewModel implements SecretOwnerT
 	public void onStateChanged(SecretOwnerTask.State state) {
 		this.state.postValue(state);
 		if (state instanceof SecretOwnerTask.State.Listening) {
-			DisplayMetrics dm = getApplication().getResources().getDisplayMetrics();
+			DisplayMetrics dm =
+					getApplication().getResources().getDisplayMetrics();
 			ioExecutor.execute(() -> {
-				byte[] payloadBytes = ((SecretOwnerTask.State.Listening) state).getLocalPayload();
+				byte[] payloadBytes = ((SecretOwnerTask.State.Listening) state)
+						.getLocalPayload();
 				if (LOG.isLoggable(INFO)) {
 					LOG.info("Local payload is " + payloadBytes.length
 							+ " bytes");

briar-core/src/main/java/org/briarproject/briar/socialbackup/recovery/CustodianTaskImpl.java

@@ -97,6 +97,7 @@ public class CustodianTaskImpl extends ReturnShardTaskImpl
 	private void connectAndSendShard() {
 		observer.onStateChanged(new CustodianTask.State.SendingShard());
 		try {
+			LOG.info("Connecting to secret owner " + remoteSocketAddress);
 			socket.connect(remoteSocketAddress, TIMEOUT);
 			LOG.info("Connected to secret owner " + remoteSocketAddress);
 

briar-core/src/main/java/org/briarproject/briar/socialbackup/recovery/ReturnShardTaskImpl.java

@@ -6,6 +6,7 @@ import org.briarproject.bramble.api.crypto.CryptoComponent;
 import org.briarproject.bramble.api.crypto.KeyPair;
 import org.briarproject.bramble.api.crypto.SecretKey;
 
+import java.io.DataInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.security.GeneralSecurityException;
@@ -35,7 +36,8 @@ public class ReturnShardTaskImpl {
 		return nonce;
 	}
 
-	void deriveSharedSecret(AgreementPublicKey remotePublicKey, byte[] context) throws
+	void deriveSharedSecret(AgreementPublicKey remotePublicKey, byte[] context)
+			throws
 			GeneralSecurityException {
 		sharedSecret =
 				crypto.deriveSharedSecret("ShardReturn", remotePublicKey,
@@ -60,9 +62,9 @@ public class ReturnShardTaskImpl {
 
 	byte[] read(InputStream inputStream, int length)
 			throws IOException {
+		DataInputStream dis = new DataInputStream(inputStream);
 		byte[] output = new byte[length];
-		int bytesRead = inputStream.read(output);
-		if (bytesRead < 0) throw new IOException("Cannot read from socket");
+		dis.readFully(output);
 		return output;
 	}
 }

briar-core/src/main/java/org/briarproject/briar/socialbackup/recovery/SecretOwnerTaskImpl.java

@@ -5,14 +5,13 @@ import org.briarproject.bramble.api.client.ClientHelper;
 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.KeyPair;
 import org.briarproject.bramble.api.data.BdfList;
 import org.briarproject.bramble.api.lifecycle.IoExecutor;
 import org.briarproject.briar.api.socialbackup.recovery.SecretOwnerTask;
 
+import java.io.DataOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.OutputStream;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.net.ServerSocket;
@@ -64,8 +63,10 @@ public class SecretOwnerTaskImpl extends ReturnShardTaskImpl
 
 		// Start listening on socketAddress
 		try {
+			LOG.info("Binding socket");
 			serverSocket = new ServerSocket();
 			serverSocket.bind(socketAddress);
+			LOG.info("Binding socket done");
 		} catch (IOException e) {
 			LOG.warning(
 					"IO Error when listening on local socket" + e.getMessage());
@@ -80,18 +81,22 @@ public class SecretOwnerTaskImpl extends ReturnShardTaskImpl
 			payloadList.add(localKeyPair.getPublic().getEncoded());
 			payloadList.add(socketAddress.getAddress().getAddress());
 			payloadList.add(socketAddress.getPort());
+			LOG.info("changing state to listening");
 			observer.onStateChanged(
 					new State.Listening(clientHelper.toByteArray(payloadList)));
+			LOG.info("changing state to listening done");
 		} catch (FormatException e) {
 			LOG.warning("Error encoding QR code");
 			observer.onStateChanged(new State.Failure());
 			return;
 		}
+		LOG.info("receiving payload");
 		receivePayload();
 	}
 
 	private void receivePayload() {
 		try {
+			LOG.info("Accepting connections");
 			socket = serverSocket.accept();
 			LOG.info("Client connected");
 			observer.onStateChanged(new State.ReceivingShard());
@@ -125,7 +130,8 @@ public class SecretOwnerTaskImpl extends ReturnShardTaskImpl
 //			StreamWriter streamWriter = streamWriterFactory.createContactExchangeStreamWriter(socket.getOutputStream(), sharedSecret);
 //			OutputStream outputStream = streamWriter.getOutputStream();
 
-			OutputStream outputStream = socket.getOutputStream();
+			DataOutputStream outputStream =
+					new DataOutputStream(socket.getOutputStream());
 			byte[] ackNonce = generateNonce();
 			outputStream.write(ackNonce);
 

briar-core/src/test/java/org/briarproject/briar/socialbackup/recovery/ReturnShardIntegrationTest.java

@@ -0,0 +1,120 @@
+package org.briarproject.briar.socialbackup.recovery;
+
+import org.briarproject.bramble.BrambleCoreIntegrationTestEagerSingletons;
+import org.briarproject.bramble.api.lifecycle.LifecycleManager;
+import org.briarproject.bramble.test.BrambleTestCase;
+import org.briarproject.bramble.test.TestDatabaseConfigModule;
+import org.briarproject.briar.api.socialbackup.recovery.CustodianTask;
+import org.briarproject.briar.api.socialbackup.recovery.SecretOwnerTask;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.File;
+import java.net.InetAddress;
+
+import static junit.framework.TestCase.fail;
+import static org.briarproject.bramble.test.TestUtils.deleteTestDirectory;
+import static org.briarproject.bramble.test.TestUtils.getTestDirectory;
+import static org.junit.Assert.assertTrue;
+
+public class ReturnShardIntegrationTest extends BrambleTestCase {
+
+	private final File testDir = getTestDirectory();
+	private final File ownerDir = new File(testDir, "owner");
+	private final File custodianDir = new File(testDir, "custodian");
+
+	private ReturnShardIntegrationTestComponent owner, custodian;
+
+	@Before
+	public void setUp() throws Exception {
+		assertTrue(testDir.mkdirs());
+		// Create the devices
+		owner = DaggerReturnShardIntegrationTestComponent.builder()
+				.testDatabaseConfigModule(
+						new TestDatabaseConfigModule(ownerDir)).build();
+		BrambleCoreIntegrationTestEagerSingletons.Helper
+				.injectEagerSingletons(owner);
+		custodian = DaggerReturnShardIntegrationTestComponent.builder()
+				.testDatabaseConfigModule(new TestDatabaseConfigModule(
+						custodianDir))
+				.build();
+		BrambleCoreIntegrationTestEagerSingletons.Helper
+				.injectEagerSingletons(custodian);
+	}
+
+	@Test
+	public void testReturnShard() {
+		SecretOwnerTask secretOwnerTask = owner.getSecretOwnerTask();
+		CustodianTask custodianTask = custodian.getCustodianTask();
+
+		SecretOwnerTask.Observer ownerObserver =
+				state -> {
+					if (state instanceof SecretOwnerTask.State.Listening) {
+						SecretOwnerTask.State.Listening listening =
+								(SecretOwnerTask.State.Listening) state;
+						byte[] payload = listening.getLocalPayload();
+						System.out.println(payload.length);
+						tansferQrCode(custodianTask, payload);
+					} else if (state instanceof SecretOwnerTask.State.Failure) {
+						System.out.println("owner state: failure");
+						fail();
+					} else {
+						System.out.println(
+								"owner: " + state.getClass().getSimpleName());
+					}
+				};
+
+		CustodianTask.Observer custodianObserver =
+				state -> System.out.println(
+						"custodian: " + state.getClass().getSimpleName());
+
+		owner.getIoExecutor().execute(() -> {
+			try {
+				secretOwnerTask
+						.start(ownerObserver, InetAddress.getLocalHost());
+			} catch (Exception e) {
+				fail();
+			}
+		});
+
+		custodian.getIoExecutor().execute(() -> {
+			try {
+				custodianTask.start(custodianObserver);
+			} catch (Exception e) {
+				fail();
+			}
+		});
+	}
+
+	private void tansferQrCode(CustodianTask custodianTask, byte[] payload) {
+		System.out.println("Calling qrCodeDecoded in executor()");
+		custodian.getIoExecutor().execute(() -> {
+			try {
+				System.out.println("Calling qrCodeDecoded()");
+				Thread.sleep(500);
+				custodianTask.qrCodeDecoded(payload);
+				System.out.println("qrCodeDecoded() done");
+			} catch (Exception e) {
+				e.printStackTrace();
+				fail();
+			}
+		});
+	}
+
+	private void tearDown(ReturnShardIntegrationTestComponent device)
+			throws Exception {
+		// Stop the lifecycle manager
+		LifecycleManager lifecycleManager = device.getLifecycleManager();
+		lifecycleManager.stopServices();
+		lifecycleManager.waitForShutdown();
+	}
+
+	@After
+	public void tearDown() throws Exception {
+		tearDown(owner);
+		tearDown(custodian);
+		deleteTestDirectory(testDir);
+	}
+
+}

briar-core/src/test/java/org/briarproject/briar/socialbackup/recovery/ReturnShardIntegrationTestComponent.java

@@ -0,0 +1,50 @@
+package org.briarproject.briar.socialbackup.recovery;
+
+import org.briarproject.bramble.BrambleCoreIntegrationTestEagerSingletons;
+import org.briarproject.bramble.BrambleCoreModule;
+import org.briarproject.bramble.api.connection.ConnectionManager;
+import org.briarproject.bramble.api.contact.ContactExchangeManager;
+import org.briarproject.bramble.api.contact.ContactManager;
+import org.briarproject.bramble.api.event.EventBus;
+import org.briarproject.bramble.api.identity.IdentityManager;
+import org.briarproject.bramble.api.lifecycle.IoExecutor;
+import org.briarproject.bramble.api.lifecycle.LifecycleManager;
+import org.briarproject.bramble.test.BrambleCoreIntegrationTestModule;
+import org.briarproject.briar.api.socialbackup.recovery.CustodianTask;
+import org.briarproject.briar.api.socialbackup.recovery.SecretOwnerTask;
+import org.briarproject.briar.socialbackup.SocialBackupModule;
+
+import java.util.concurrent.Executor;
+
+import javax.inject.Singleton;
+
+import dagger.Component;
+
+@Singleton
+@Component(modules = {
+		BrambleCoreIntegrationTestModule.class,
+		BrambleCoreModule.class,
+		SocialBackupModule.class
+})
+interface ReturnShardIntegrationTestComponent
+		extends BrambleCoreIntegrationTestEagerSingletons {
+
+	ConnectionManager getConnectionManager();
+
+	ContactExchangeManager getContactExchangeManager();
+
+	ContactManager getContactManager();
+
+	EventBus getEventBus();
+
+	IdentityManager getIdentityManager();
+
+	@IoExecutor
+	Executor getIoExecutor();
+
+	LifecycleManager getLifecycleManager();
+
+	SecretOwnerTask getSecretOwnerTask();
+
+	CustodianTask getCustodianTask();
+}