X-Git-Url: https://git.nmode.ca/signal-cli/blobdiff_plain/00777a469c7ec152555a2e92eaf13b8dd0bf43f0..53b84bad0280694a19e47d6f76620f8a140fdd15:/src/main/java/org/asamk/signal/commands/DaemonCommand.java diff --git a/src/main/java/org/asamk/signal/commands/DaemonCommand.java b/src/main/java/org/asamk/signal/commands/DaemonCommand.java index 11805b44..726cf268 100644 --- a/src/main/java/org/asamk/signal/commands/DaemonCommand.java +++ b/src/main/java/org/asamk/signal/commands/DaemonCommand.java @@ -4,74 +4,379 @@ import net.sourceforge.argparse4j.impl.Arguments; import net.sourceforge.argparse4j.inf.Namespace; import net.sourceforge.argparse4j.inf.Subparser; -import org.asamk.signal.DbusReceiveMessageHandler; -import org.asamk.signal.JsonDbusReceiveMessageHandler; +import org.asamk.signal.DbusConfig; +import org.asamk.signal.JsonReceiveMessageHandler; +import org.asamk.signal.JsonWriter; +import org.asamk.signal.JsonWriterImpl; +import org.asamk.signal.OutputType; +import org.asamk.signal.OutputWriter; +import org.asamk.signal.PlainTextWriter; +import org.asamk.signal.ReceiveMessageHandler; +import org.asamk.signal.commands.exceptions.CommandException; +import org.asamk.signal.commands.exceptions.IOErrorException; +import org.asamk.signal.commands.exceptions.UnexpectedErrorException; +import org.asamk.signal.dbus.DbusSignalControlImpl; +import org.asamk.signal.dbus.DbusSignalImpl; +import org.asamk.signal.jsonrpc.SignalJsonRpcDispatcherHandler; import org.asamk.signal.manager.Manager; +import org.asamk.signal.manager.MultiAccountManager; +import org.asamk.signal.util.IOUtils; import org.freedesktop.dbus.connections.impl.DBusConnection; import org.freedesktop.dbus.exceptions.DBusException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import java.io.File; import java.io.IOException; -import java.util.concurrent.TimeUnit; +import java.net.UnixDomainSocketAddress; +import java.nio.channels.Channel; +import java.nio.channels.Channels; +import java.nio.channels.ServerSocketChannel; +import java.nio.channels.SocketChannel; +import java.nio.charset.StandardCharsets; +import java.util.List; +import java.util.Objects; +import java.util.function.Consumer; +import java.util.stream.Collectors; -import static org.asamk.signal.DbusConfig.SIGNAL_BUSNAME; -import static org.asamk.signal.DbusConfig.SIGNAL_OBJECTPATH; -import static org.asamk.signal.util.ErrorUtils.handleAssertionError; +public class DaemonCommand implements MultiLocalCommand, LocalCommand { -public class DaemonCommand implements LocalCommand { + private final static Logger logger = LoggerFactory.getLogger(DaemonCommand.class); + + @Override + public String getName() { + return "daemon"; + } @Override public void attachToSubparser(final Subparser subparser) { - subparser.addArgument("--system") + final var defaultSocketPath = new File(new File(IOUtils.getRuntimeDir(), "signal-cli"), "socket"); + subparser.help("Run in daemon mode and provide an experimental dbus or JSON-RPC interface."); + subparser.addArgument("--dbus") .action(Arguments.storeTrue()) - .help("Use DBus system bus instead of user bus."); + .help("Expose a DBus interface on the user bus (the default, if no other options are given)."); + subparser.addArgument("--dbus-system", "--system") + .action(Arguments.storeTrue()) + .help("Expose a DBus interface on the system bus."); + subparser.addArgument("--socket") + .nargs("?") + .type(File.class) + .setConst(defaultSocketPath) + .help("Expose a JSON-RPC interface on a UNIX socket (default $XDG_RUNTIME_DIR/signal-cli/socket)."); + subparser.addArgument("--tcp") + .nargs("?") + .setConst("localhost:7583") + .help("Expose a JSON-RPC interface on a TCP socket (default localhost:7583)."); + subparser.addArgument("--no-receive-stdout") + .help("Don’t print received messages to stdout.") + .action(Arguments.storeTrue()); + subparser.addArgument("--receive-mode") + .help("Specify when to start receiving messages.") + .type(Arguments.enumStringType(ReceiveMode.class)) + .setDefault(ReceiveMode.ON_START); subparser.addArgument("--ignore-attachments") .help("Don’t download attachments of received messages.") .action(Arguments.storeTrue()); - subparser.addArgument("--json") - .help("Output received messages in json format, one json object per line.") - .action(Arguments.storeTrue()); } @Override - public int handleCommand(final Namespace ns, final Manager m) { - if (!m.isRegistered()) { - System.err.println("User is not registered."); - return 1; + public List getSupportedOutputTypes() { + return List.of(OutputType.PLAIN_TEXT, OutputType.JSON); + } + + @Override + public void handleCommand( + final Namespace ns, final Manager m, final OutputWriter outputWriter + ) throws CommandException { + logger.info("Starting daemon in single-account mode for " + m.getSelfNumber()); + final var noReceiveStdOut = Boolean.TRUE.equals(ns.getBoolean("no-receive-stdout")); + final var receiveMode = ns.get("receive-mode"); + final var ignoreAttachments = Boolean.TRUE.equals(ns.getBoolean("ignore-attachments")); + + m.setIgnoreAttachments(ignoreAttachments); + addDefaultReceiveHandler(m, noReceiveStdOut ? null : outputWriter, receiveMode != ReceiveMode.ON_START); + + final Channel inheritedChannel; + try { + inheritedChannel = System.inheritedChannel(); + if (inheritedChannel instanceof ServerSocketChannel serverChannel) { + logger.info("Using inherited socket: " + serverChannel.getLocalAddress()); + runSocketSingleAccount(m, serverChannel, receiveMode == ReceiveMode.MANUAL); + } + } catch (IOException e) { + throw new IOErrorException("Failed to use inherited socket", e); + } + final var socketFile = ns.get("socket"); + if (socketFile != null) { + final var address = UnixDomainSocketAddress.of(socketFile.toPath()); + final var serverChannel = IOUtils.bindSocket(address); + runSocketSingleAccount(m, serverChannel, receiveMode == ReceiveMode.MANUAL); + } + final var tcpAddress = ns.getString("tcp"); + if (tcpAddress != null) { + final var address = IOUtils.parseInetSocketAddress(tcpAddress); + final var serverChannel = IOUtils.bindSocket(address); + runSocketSingleAccount(m, serverChannel, receiveMode == ReceiveMode.MANUAL); + } + final var isDbusSystem = Boolean.TRUE.equals(ns.getBoolean("dbus-system")); + if (isDbusSystem) { + runDbusSingleAccount(m, true, receiveMode != ReceiveMode.ON_START); + } + final var isDbusSession = Boolean.TRUE.equals(ns.getBoolean("dbus")); + if (isDbusSession || ( + !isDbusSystem + && socketFile == null + && tcpAddress == null + && !(inheritedChannel instanceof ServerSocketChannel) + )) { + runDbusSingleAccount(m, false, receiveMode != ReceiveMode.ON_START); + } + + m.addClosedListener(() -> { + synchronized (this) { + notifyAll(); + } + }); + + synchronized (this) { + try { + wait(); + } catch (InterruptedException ignored) { + } } - DBusConnection conn = null; + } + + @Override + public void handleCommand( + final Namespace ns, final MultiAccountManager c, final OutputWriter outputWriter + ) throws CommandException { + logger.info("Starting daemon in multi-account mode"); + final var noReceiveStdOut = Boolean.TRUE.equals(ns.getBoolean("no-receive-stdout")); + final var receiveMode = ns.get("receive-mode"); + final var ignoreAttachments = Boolean.TRUE.equals(ns.getBoolean("ignore-attachments")); + + c.getAccountNumbers().stream().map(c::getManager).filter(Objects::nonNull).forEach(m -> { + m.setIgnoreAttachments(ignoreAttachments); + addDefaultReceiveHandler(m, noReceiveStdOut ? null : outputWriter, receiveMode != ReceiveMode.ON_START); + }); + c.addOnManagerAddedHandler(m -> { + m.setIgnoreAttachments(ignoreAttachments); + addDefaultReceiveHandler(m, noReceiveStdOut ? null : outputWriter, receiveMode != ReceiveMode.ON_START); + }); + + final Channel inheritedChannel; try { + inheritedChannel = System.inheritedChannel(); + if (inheritedChannel instanceof ServerSocketChannel serverChannel) { + logger.info("Using inherited socket: " + serverChannel.getLocalAddress()); + runSocketMultiAccount(c, serverChannel, receiveMode == ReceiveMode.MANUAL); + } + } catch (IOException e) { + throw new IOErrorException("Failed to use inherited socket", e); + } + final var socketFile = ns.get("socket"); + if (socketFile != null) { + final var address = UnixDomainSocketAddress.of(socketFile.toPath()); + final var serverChannel = IOUtils.bindSocket(address); + runSocketMultiAccount(c, serverChannel, receiveMode == ReceiveMode.MANUAL); + } + final var tcpAddress = ns.getString("tcp"); + if (tcpAddress != null) { + final var address = IOUtils.parseInetSocketAddress(tcpAddress); + final var serverChannel = IOUtils.bindSocket(address); + runSocketMultiAccount(c, serverChannel, receiveMode == ReceiveMode.MANUAL); + } + final var isDbusSystem = Boolean.TRUE.equals(ns.getBoolean("dbus-system")); + if (isDbusSystem) { + runDbusMultiAccount(c, receiveMode != ReceiveMode.ON_START, true); + } + final var isDbusSession = Boolean.TRUE.equals(ns.getBoolean("dbus")); + if (isDbusSession || ( + !isDbusSystem + && socketFile == null + && tcpAddress == null + && !(inheritedChannel instanceof ServerSocketChannel) + )) { + runDbusMultiAccount(c, receiveMode != ReceiveMode.ON_START, false); + } + + synchronized (this) { try { - DBusConnection.DBusBusType busType; - if (ns.getBoolean("system")) { - busType = DBusConnection.DBusBusType.SYSTEM; - } else { - busType = DBusConnection.DBusBusType.SESSION; + wait(); + } catch (InterruptedException ignored) { + } + } + } + + private void addDefaultReceiveHandler(Manager m, OutputWriter outputWriter, final boolean isWeakListener) { + final var handler = outputWriter instanceof JsonWriter o + ? new JsonReceiveMessageHandler(m, o) + : outputWriter instanceof PlainTextWriter o + ? new ReceiveMessageHandler(m, o) + : Manager.ReceiveMessageHandler.EMPTY; + m.addReceiveHandler(handler, isWeakListener); + } + + private void runSocketSingleAccount( + final Manager m, final ServerSocketChannel serverChannel, final boolean noReceiveOnStart + ) { + runSocket(serverChannel, channel -> { + final var handler = getSignalJsonRpcDispatcherHandler(channel, noReceiveOnStart); + handler.handleConnection(m); + }); + } + + private void runSocketMultiAccount( + final MultiAccountManager c, final ServerSocketChannel serverChannel, final boolean noReceiveOnStart + ) { + runSocket(serverChannel, channel -> { + final var handler = getSignalJsonRpcDispatcherHandler(channel, noReceiveOnStart); + handler.handleConnection(c); + }); + } + + private void runSocket(final ServerSocketChannel serverChannel, Consumer socketHandler) { + new Thread(() -> { + while (true) { + final SocketChannel channel; + final String clientString; + try { + channel = serverChannel.accept(); + clientString = channel.getRemoteAddress() + " " + IOUtils.getUnixDomainPrincipal(channel); + logger.info("Accepted new client: " + clientString); + } catch (IOException e) { + logger.error("Failed to accept new socket connection", e); + synchronized (this) { + notifyAll(); + } + break; } - conn = DBusConnection.getConnection(busType); - conn.exportObject(SIGNAL_OBJECTPATH, m); - conn.requestBusName(SIGNAL_BUSNAME); - } catch (UnsatisfiedLinkError e) { - System.err.println("Missing native library dependency for dbus service: " + e.getMessage()); - return 1; - } catch (DBusException e) { - e.printStackTrace(); - return 2; + new Thread(() -> { + try (final var c = channel) { + socketHandler.accept(c); + logger.info("Connection closed: " + clientString); + } catch (IOException e) { + logger.warn("Failed to close channel", e); + } + }).start(); } - boolean ignoreAttachments = ns.getBoolean("ignore_attachments"); + }).start(); + } + + private SignalJsonRpcDispatcherHandler getSignalJsonRpcDispatcherHandler( + final SocketChannel c, final boolean noReceiveOnStart + ) { + 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, noReceiveOnStart); + } + + private void runDbusSingleAccount( + final Manager m, final boolean isDbusSystem, final boolean noReceiveOnStart + ) throws UnexpectedErrorException { + runDbus(isDbusSystem, (conn, objectPath) -> { try { - m.receiveMessages(1, TimeUnit.HOURS, false, ignoreAttachments, ns.getBoolean("json") ? new JsonDbusReceiveMessageHandler(m, conn, SIGNAL_OBJECTPATH) : new DbusReceiveMessageHandler(m, conn, SIGNAL_OBJECTPATH)); - return 0; - } catch (IOException e) { - System.err.println("Error while receiving messages: " + e.getMessage()); - return 3; - } catch (AssertionError e) { - handleAssertionError(e); - return 1; + exportDbusObject(conn, objectPath, m, noReceiveOnStart).join(); + } catch (InterruptedException ignored) { } - } finally { - if (conn != null) { - conn.disconnect(); + }); + } + + private void runDbusMultiAccount( + final MultiAccountManager c, final boolean noReceiveOnStart, final boolean isDbusSystem + ) throws UnexpectedErrorException { + runDbus(isDbusSystem, (connection, objectPath) -> { + final var signalControl = new DbusSignalControlImpl(c, objectPath); + connection.exportObject(signalControl); + + c.addOnManagerAddedHandler(m -> { + final var thread = exportMultiAccountManager(connection, m, noReceiveOnStart); + if (thread != null) { + 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(); + } + } catch (DBusException ignored) { + } + connection.unExportObject(path); + }); + + final var initThreads = c.getAccountNumbers() + .stream() + .map(c::getManager) + .filter(Objects::nonNull) + .map(m -> exportMultiAccountManager(connection, m, noReceiveOnStart)) + .filter(Objects::nonNull) + .collect(Collectors.toList()); + + for (var t : initThreads) { + try { + t.join(); + } catch (InterruptedException ignored) { + } } + }); + } + + private void runDbus( + final boolean isDbusSystem, DbusRunner dbusRunner + ) throws UnexpectedErrorException { + DBusConnection.DBusBusType busType; + if (isDbusSystem) { + busType = DBusConnection.DBusBusType.SYSTEM; + } else { + busType = DBusConnection.DBusBusType.SESSION; + } + try { + var conn = DBusConnection.getConnection(busType); + dbusRunner.run(conn, DbusConfig.getObjectPath()); + + conn.requestBusName(DbusConfig.getBusname()); + + logger.info("DBus daemon running on {} bus: {}", busType, DbusConfig.getBusname()); + } catch (DBusException e) { + logger.error("Dbus command failed", e); + throw new UnexpectedErrorException("Dbus command failed", e); + } + } + + private Thread exportMultiAccountManager( + final DBusConnection conn, final Manager m, final boolean noReceiveOnStart + ) { + try { + final var objectPath = DbusConfig.getObjectPath(m.getSelfNumber()); + return exportDbusObject(conn, objectPath, m, noReceiveOnStart); + } catch (DBusException e) { + logger.error("Failed to export object", e); + return null; } } + + private Thread exportDbusObject( + final DBusConnection conn, final String objectPath, final Manager m, final boolean noReceiveOnStart + ) throws DBusException { + final var signal = new DbusSignalImpl(m, conn, objectPath, noReceiveOnStart); + conn.exportObject(signal); + final var initThread = new Thread(signal::initObjects); + initThread.start(); + + logger.debug("Exported dbus object: " + objectPath); + + return initThread; + } + + interface DbusRunner { + + void run(DBusConnection connection, String objectPath) throws DBusException; + } }