+ private static abstract class DaemonHandler implements AutoCloseable {
+
+ protected final ReceiveMode receiveMode;
+ protected final List<AutoCloseable> closeables = new ArrayList<>();
+
+ private static final AtomicInteger threadNumber = new AtomicInteger(0);
+
+ public DaemonHandler(final ReceiveMode receiveMode) {
+ this.receiveMode = receiveMode;
+ }
+
+ public abstract void runSocket(ServerSocketChannel serverChannel) throws CommandException;
+
+ public abstract void runDbus(boolean isDbusSystem) throws CommandException;
+
+ public abstract void runHttp(InetSocketAddress address) throws CommandException;
+
+ protected void runSocket(final ServerSocketChannel serverChannel, Consumer<SocketChannel> socketHandler) {
+ final List<AutoCloseable> channels = new ArrayList<>();
+ final var thread = Thread.ofPlatform().name("daemon-listener").start(() -> {
+ try (final var executor = Executors.newCachedThreadPool()) {
+ while (true) {
+ final var connectionId = threadNumber.getAndIncrement();
+ final SocketChannel channel;
+ final String clientString;
+ try {
+ channel = serverChannel.accept();
+ clientString = channel.getRemoteAddress() + " " + IOUtils.getUnixDomainPrincipal(channel);
+ logger.info("Accepted new client connection {}: {}", connectionId, clientString);
+ } catch (ClosedChannelException ignored) {
+ logger.trace("Listening socket has been closed");
+ break;
+ } catch (IOException e) {
+ logger.error("Failed to accept new socket connection", e);
+ break;
+ }
+ channels.add(channel);
+ executor.submit(() -> {
+ try (final var c = channel) {
+ socketHandler.accept(c);
+ } catch (IOException e) {
+ logger.warn("Failed to close channel", e);
+ } catch (Throwable e) {
+ logger.warn("Connection handler failed, closing connection", e);
+ }
+ logger.info("Connection {} closed: {}", connectionId, clientString);
+ channels.remove(channel);
+ });
+ }
+ }
+ });
+ closeables.add(() -> {
+ serverChannel.close();
+ for (final var c : new ArrayList<>(channels)) {
+ c.close();
+ }
+ thread.join();
+ });
+ }
+
+ protected SignalJsonRpcDispatcherHandler getSignalJsonRpcDispatcherHandler(final SocketChannel c) {
+ final var lineSupplier = IOUtils.getLineSupplier(Channels.newReader(c, StandardCharsets.UTF_8));
+ final var jsonOutputWriter = new JsonWriterImpl(Channels.newWriter(c, StandardCharsets.UTF_8));
+
+ return new SignalJsonRpcDispatcherHandler(jsonOutputWriter,
+ lineSupplier,
+ receiveMode == ReceiveMode.MANUAL);
+ }
+
+ protected Thread exportDbusObject(final DBusConnection conn, final String objectPath, final Manager m) {
+ final var signal = new DbusSignalImpl(m, conn, objectPath, receiveMode != ReceiveMode.ON_START);
+ closeables.add(signal);
+
+ return Thread.ofPlatform().name("dbus-init-" + m.getSelfNumber()).start(signal::initObjects);
+ }
+
+ protected void runDbus(
+ final boolean isDbusSystem, MultiAccountDaemonHandler.DbusRunner dbusRunner
+ ) throws CommandException {
+ DBusConnection.DBusBusType busType;
+ if (isDbusSystem) {
+ busType = DBusConnection.DBusBusType.SYSTEM;
+ } else {
+ busType = DBusConnection.DBusBusType.SESSION;
+ }
+ DBusConnection conn;
+ try {
+ conn = DBusConnectionBuilder.forType(busType).build();
+ dbusRunner.run(conn, DbusConfig.getObjectPath());
+ } catch (DBusException e) {
+ throw new UnexpectedErrorException("Dbus command failed: " + e.getMessage(), e);
+ } catch (UnsupportedOperationException e) {
+ throw new UserErrorException("Failed to connect to Dbus: " + e.getMessage(), e);
+ }
+
+ try {
+ conn.requestBusName(DbusConfig.getBusname());
+ } catch (DBusException e) {
+ throw new UnexpectedErrorException(
+ "Dbus command failed, maybe signal-cli dbus daemon is already running: " + e.getMessage(),
+ e);
+ }
+ closeables.add(conn);
+
+ logger.info("DBus daemon running on {} bus: {}", busType, DbusConfig.getBusname());
+ }
+
+ @Override
+ public void close() {
+ for (final var closeable : new ArrayList<>(closeables)) {
+ try {
+ closeable.close();
+ } catch (Exception e) {
+ logger.warn("Failed to close daemon handler", e);
+ }
+ }
+ closeables.clear();
+ }
+ }
+
+ private static final class SingleAccountDaemonHandler extends DaemonHandler {
+
+ private final Manager m;
+
+ private SingleAccountDaemonHandler(final Manager m, final ReceiveMode receiveMode) {
+ super(receiveMode);
+ this.m = m;
+ }
+
+ @Override
+ public void runSocket(final ServerSocketChannel serverChannel) {
+ runSocket(serverChannel, channel -> {
+ final var handler = getSignalJsonRpcDispatcherHandler(channel);
+ handler.handleConnection(m);
+ });
+ }
+
+ @Override
+ public void runDbus(final boolean isDbusSystem) throws CommandException {
+ runDbus(isDbusSystem, (conn, objectPath) -> {
+ try {
+ exportDbusObject(conn, objectPath, m).join();
+ } catch (InterruptedException ignored) {
+ }
+ });
+ }
+
+ @Override
+ public void runHttp(InetSocketAddress address) throws CommandException {
+ final var handler = new HttpServerHandler(address, m);
+ try {
+ handler.init();
+ } catch (IOException ex) {
+ throw new IOErrorException("Failed to initialize HTTP Server", ex);
+ }
+ this.closeables.add(handler);
+ }
+ }
+
+ private static final class MultiAccountDaemonHandler extends DaemonHandler {
+
+ private final MultiAccountManager c;
+
+ private MultiAccountDaemonHandler(final MultiAccountManager c, final ReceiveMode receiveMode) {
+ super(receiveMode);
+ this.c = c;
+ }
+
+ public void runSocket(final ServerSocketChannel serverChannel) {
+ runSocket(serverChannel, channel -> {
+ final var handler = getSignalJsonRpcDispatcherHandler(channel);
+ handler.handleConnection(c);
+ });
+ }
+
+ public void runDbus(final boolean isDbusSystem) throws CommandException {
+ runDbus(isDbusSystem, (connection, objectPath) -> {
+ final var signalControl = new DbusSignalControlImpl(c, objectPath);
+ connection.exportObject(signalControl);
+
+ c.addOnManagerAddedHandler(m -> {
+ final var thread = exportManager(connection, m);
+ try {
+ thread.join();
+ } catch (InterruptedException ignored) {
+ }
+ });
+ c.addOnManagerRemovedHandler(m -> {
+ final var path = DbusConfig.getObjectPath(m.getSelfNumber());
+ try {
+ final var object = connection.getExportedObject(null, path);
+ if (object instanceof DbusSignalImpl dbusSignal) {
+ dbusSignal.close();
+ closeables.remove(dbusSignal);
+ }
+ } catch (DBusException ignored) {
+ }
+ });
+
+ final var initThreads = c.getManagers().stream().map(m -> exportManager(connection, m)).toList();
+
+ for (var t : initThreads) {
+ try {
+ t.join();
+ } catch (InterruptedException ignored) {
+ }
+ }
+ });
+ }
+
+ @Override
+ public void runHttp(final InetSocketAddress address) throws CommandException {
+ final var handler = new HttpServerHandler(address, c);
+ try {
+ handler.init();
+ } catch (IOException ex) {
+ throw new IOErrorException("Failed to initialize HTTP Server", ex);
+ }
+ this.closeables.add(handler);
+ }
+
+ private Thread exportManager(
+ final DBusConnection conn, final Manager m
+ ) {
+ final var objectPath = DbusConfig.getObjectPath(m.getSelfNumber());
+ return exportDbusObject(conn, objectPath, m);
+ }
+
+ interface DbusRunner {
+
+ void run(DBusConnection connection, String objectPath) throws DBusException;
+ }
git.nmode.ca / signal-cli / blobdiff
