mirror of
https://github.com/AsamK/signal-cli
synced 2025-08-29 10:30:38 +00:00
363 lines
15 KiB
Java
363 lines
15 KiB
Java
package org.asamk.signal.commands;
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import net.sourceforge.argparse4j.impl.Arguments;
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import net.sourceforge.argparse4j.inf.Namespace;
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import net.sourceforge.argparse4j.inf.Subparser;
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import org.asamk.signal.DbusConfig;
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import org.asamk.signal.JsonReceiveMessageHandler;
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import org.asamk.signal.JsonWriter;
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import org.asamk.signal.JsonWriterImpl;
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import org.asamk.signal.OutputType;
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import org.asamk.signal.OutputWriter;
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import org.asamk.signal.PlainTextWriter;
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import org.asamk.signal.ReceiveMessageHandler;
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import org.asamk.signal.commands.exceptions.CommandException;
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import org.asamk.signal.commands.exceptions.IOErrorException;
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import org.asamk.signal.commands.exceptions.UnexpectedErrorException;
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import org.asamk.signal.dbus.DbusSignalControlImpl;
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import org.asamk.signal.dbus.DbusSignalImpl;
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import org.asamk.signal.jsonrpc.SignalJsonRpcDispatcherHandler;
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import org.asamk.signal.manager.Manager;
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import org.asamk.signal.util.IOUtils;
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import org.freedesktop.dbus.connections.impl.DBusConnection;
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import org.freedesktop.dbus.exceptions.DBusException;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.File;
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import java.io.IOException;
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import java.net.UnixDomainSocketAddress;
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import java.nio.channels.Channel;
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import java.nio.channels.Channels;
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import java.nio.channels.ServerSocketChannel;
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import java.nio.channels.SocketChannel;
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import java.nio.charset.StandardCharsets;
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import java.util.List;
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import java.util.Objects;
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import java.util.function.Consumer;
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import java.util.stream.Collectors;
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public class DaemonCommand implements MultiLocalCommand, LocalCommand {
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private final static Logger logger = LoggerFactory.getLogger(DaemonCommand.class);
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@Override
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public String getName() {
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return "daemon";
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}
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@Override
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public void attachToSubparser(final Subparser subparser) {
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final var defaultSocketPath = new File(new File(IOUtils.getRuntimeDir(), "signal-cli"), "socket");
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subparser.help("Run in daemon mode and provide an experimental dbus or JSON-RPC interface.");
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subparser.addArgument("--dbus")
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.action(Arguments.storeTrue())
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.help("Expose a DBus interface on the user bus (the default, if no other options are given).");
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subparser.addArgument("--dbus-system", "--system")
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.action(Arguments.storeTrue())
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.help("Expose a DBus interface on the system bus.");
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subparser.addArgument("--socket")
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.nargs("?")
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.type(File.class)
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.setConst(defaultSocketPath)
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.help("Expose a JSON-RPC interface on a UNIX socket (default $XDG_RUNTIME_DIR/signal-cli/socket).");
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subparser.addArgument("--tcp")
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.nargs("?")
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.setConst("localhost:7583")
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.help("Expose a JSON-RPC interface on a TCP socket (default localhost:7583).");
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subparser.addArgument("--no-receive-stdout")
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.help("Don’t print received messages to stdout.")
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.action(Arguments.storeTrue());
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subparser.addArgument("--receive-mode")
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.help("Specify when to start receiving messages.")
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.type(Arguments.enumStringType(ReceiveMode.class))
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.setDefault(ReceiveMode.ON_START);
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subparser.addArgument("--ignore-attachments")
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.help("Don’t download attachments of received messages.")
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.action(Arguments.storeTrue());
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}
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@Override
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public List<OutputType> getSupportedOutputTypes() {
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return List.of(OutputType.PLAIN_TEXT, OutputType.JSON);
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}
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@Override
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public void handleCommand(
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final Namespace ns, final Manager m, final OutputWriter outputWriter
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) throws CommandException {
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logger.info("Starting daemon in single-account mode for " + m.getSelfNumber());
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final var noReceiveStdOut = Boolean.TRUE.equals(ns.getBoolean("no-receive-stdout"));
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final var receiveMode = ns.<ReceiveMode>get("receive-mode");
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final var ignoreAttachments = Boolean.TRUE.equals(ns.getBoolean("ignore-attachments"));
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m.setIgnoreAttachments(ignoreAttachments);
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addDefaultReceiveHandler(m, noReceiveStdOut ? null : outputWriter, receiveMode != ReceiveMode.ON_START);
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final Channel inheritedChannel;
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try {
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inheritedChannel = System.inheritedChannel();
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if (inheritedChannel instanceof ServerSocketChannel serverChannel) {
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logger.info("Using inherited socket: " + serverChannel.getLocalAddress());
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runSocketSingleAccount(m, serverChannel, receiveMode == ReceiveMode.MANUAL);
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}
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} catch (IOException e) {
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throw new IOErrorException("Failed to use inherited socket", e);
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}
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final var socketFile = ns.<File>get("socket");
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if (socketFile != null) {
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final var address = UnixDomainSocketAddress.of(socketFile.toPath());
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final var serverChannel = IOUtils.bindSocket(address);
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runSocketSingleAccount(m, serverChannel, receiveMode == ReceiveMode.MANUAL);
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}
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final var tcpAddress = ns.getString("tcp");
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if (tcpAddress != null) {
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final var address = IOUtils.parseInetSocketAddress(tcpAddress);
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final var serverChannel = IOUtils.bindSocket(address);
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runSocketSingleAccount(m, serverChannel, receiveMode == ReceiveMode.MANUAL);
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}
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final var isDbusSystem = Boolean.TRUE.equals(ns.getBoolean("dbus-system"));
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if (isDbusSystem) {
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runDbusSingleAccount(m, true, receiveMode != ReceiveMode.ON_START);
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}
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final var isDbusSession = Boolean.TRUE.equals(ns.getBoolean("dbus"));
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if (isDbusSession || (
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!isDbusSystem
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&& socketFile == null
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&& tcpAddress == null
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&& !(inheritedChannel instanceof ServerSocketChannel)
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)) {
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runDbusSingleAccount(m, false, receiveMode != ReceiveMode.ON_START);
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}
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synchronized (this) {
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try {
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wait();
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} catch (InterruptedException ignored) {
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}
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}
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}
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@Override
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public void handleCommand(
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final Namespace ns, final SignalCreator c, final OutputWriter outputWriter
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) throws CommandException {
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logger.info("Starting daemon in multi-account mode");
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final var noReceiveStdOut = Boolean.TRUE.equals(ns.getBoolean("no-receive-stdout"));
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final var receiveMode = ns.<ReceiveMode>get("receive-mode");
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final var ignoreAttachments = Boolean.TRUE.equals(ns.getBoolean("ignore-attachments"));
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c.getAccountNumbers().stream().map(c::getManager).filter(Objects::nonNull).forEach(m -> {
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m.setIgnoreAttachments(ignoreAttachments);
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addDefaultReceiveHandler(m, noReceiveStdOut ? null : outputWriter, receiveMode != ReceiveMode.ON_START);
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});
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c.addOnManagerAddedHandler(m -> {
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m.setIgnoreAttachments(ignoreAttachments);
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addDefaultReceiveHandler(m, noReceiveStdOut ? null : outputWriter, receiveMode != ReceiveMode.ON_START);
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});
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final Channel inheritedChannel;
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try {
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inheritedChannel = System.inheritedChannel();
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if (inheritedChannel instanceof ServerSocketChannel serverChannel) {
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logger.info("Using inherited socket: " + serverChannel.getLocalAddress());
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runSocketMultiAccount(c, serverChannel, receiveMode == ReceiveMode.MANUAL);
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}
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} catch (IOException e) {
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throw new IOErrorException("Failed to use inherited socket", e);
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}
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final var socketFile = ns.<File>get("socket");
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if (socketFile != null) {
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final var address = UnixDomainSocketAddress.of(socketFile.toPath());
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final var serverChannel = IOUtils.bindSocket(address);
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runSocketMultiAccount(c, serverChannel, receiveMode == ReceiveMode.MANUAL);
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}
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final var tcpAddress = ns.getString("tcp");
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if (tcpAddress != null) {
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final var address = IOUtils.parseInetSocketAddress(tcpAddress);
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final var serverChannel = IOUtils.bindSocket(address);
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runSocketMultiAccount(c, serverChannel, receiveMode == ReceiveMode.MANUAL);
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}
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final var isDbusSystem = Boolean.TRUE.equals(ns.getBoolean("dbus-system"));
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if (isDbusSystem) {
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runDbusMultiAccount(c, receiveMode != ReceiveMode.ON_START, true);
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}
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final var isDbusSession = Boolean.TRUE.equals(ns.getBoolean("dbus"));
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if (isDbusSession || (
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!isDbusSystem
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&& socketFile == null
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&& tcpAddress == null
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&& !(inheritedChannel instanceof ServerSocketChannel)
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)) {
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runDbusMultiAccount(c, receiveMode != ReceiveMode.ON_START, false);
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}
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synchronized (this) {
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try {
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wait();
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} catch (InterruptedException ignored) {
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}
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}
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}
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private void addDefaultReceiveHandler(Manager m, OutputWriter outputWriter, final boolean isWeakListener) {
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final var handler = outputWriter instanceof JsonWriter o
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? new JsonReceiveMessageHandler(m, o)
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: outputWriter instanceof PlainTextWriter o
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? new ReceiveMessageHandler(m, o)
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: Manager.ReceiveMessageHandler.EMPTY;
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m.addReceiveHandler(handler, isWeakListener);
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}
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private void runSocketSingleAccount(
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final Manager m, final ServerSocketChannel serverChannel, final boolean noReceiveOnStart
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) {
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runSocket(serverChannel, channel -> {
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final var handler = getSignalJsonRpcDispatcherHandler(channel, noReceiveOnStart);
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handler.handleConnection(m);
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});
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}
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private void runSocketMultiAccount(
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final SignalCreator c, final ServerSocketChannel serverChannel, final boolean noReceiveOnStart
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) {
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runSocket(serverChannel, channel -> {
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final var handler = getSignalJsonRpcDispatcherHandler(channel, noReceiveOnStart);
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handler.handleConnection(c);
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});
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}
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private void runSocket(final ServerSocketChannel serverChannel, Consumer<SocketChannel> socketHandler) {
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final var mainThread = Thread.currentThread();
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new Thread(() -> {
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while (true) {
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final SocketChannel channel;
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final String clientString;
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try {
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channel = serverChannel.accept();
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clientString = channel.getRemoteAddress() + " " + IOUtils.getUnixDomainPrincipal(channel);
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logger.info("Accepted new client: " + clientString);
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} catch (IOException e) {
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logger.error("Failed to accept new socket connection", e);
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mainThread.notifyAll();
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break;
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}
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new Thread(() -> {
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try (final var c = channel) {
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socketHandler.accept(c);
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logger.info("Connection closed: " + clientString);
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} catch (IOException e) {
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logger.warn("Failed to close channel", e);
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}
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}).start();
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}
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}).start();
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}
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private SignalJsonRpcDispatcherHandler getSignalJsonRpcDispatcherHandler(
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final SocketChannel c, final boolean noReceiveOnStart
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) {
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final var lineSupplier = IOUtils.getLineSupplier(Channels.newReader(c, StandardCharsets.UTF_8));
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final var jsonOutputWriter = new JsonWriterImpl(Channels.newWriter(c, StandardCharsets.UTF_8));
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return new SignalJsonRpcDispatcherHandler(jsonOutputWriter, lineSupplier, noReceiveOnStart);
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}
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private void runDbusSingleAccount(
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final Manager m, final boolean isDbusSystem, final boolean noReceiveOnStart
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) throws UnexpectedErrorException {
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runDbus(isDbusSystem, (conn, objectPath) -> {
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try {
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exportDbusObject(conn, objectPath, m, noReceiveOnStart).join();
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} catch (InterruptedException ignored) {
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}
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});
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}
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private void runDbusMultiAccount(
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final SignalCreator c, final boolean noReceiveOnStart, final boolean isDbusSystem
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) throws UnexpectedErrorException {
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runDbus(isDbusSystem, (connection, objectPath) -> {
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final var signalControl = new DbusSignalControlImpl(c, objectPath);
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connection.exportObject(signalControl);
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c.addOnManagerAddedHandler(m -> {
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final var thread = exportMultiAccountManager(connection, m, noReceiveOnStart);
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if (thread != null) {
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try {
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thread.join();
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} catch (InterruptedException ignored) {
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}
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}
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});
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final var initThreads = c.getAccountNumbers()
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.stream()
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.map(c::getManager)
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.filter(Objects::nonNull)
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.map(m -> exportMultiAccountManager(connection, m, noReceiveOnStart))
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.filter(Objects::nonNull)
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.collect(Collectors.toList());
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for (var t : initThreads) {
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try {
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t.join();
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} catch (InterruptedException ignored) {
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}
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}
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});
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}
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private void runDbus(
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final boolean isDbusSystem, DbusRunner dbusRunner
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) throws UnexpectedErrorException {
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DBusConnection.DBusBusType busType;
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if (isDbusSystem) {
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busType = DBusConnection.DBusBusType.SYSTEM;
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} else {
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busType = DBusConnection.DBusBusType.SESSION;
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}
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try {
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var conn = DBusConnection.getConnection(busType);
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dbusRunner.run(conn, DbusConfig.getObjectPath());
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conn.requestBusName(DbusConfig.getBusname());
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logger.info("DBus daemon running on {} bus: {}", busType, DbusConfig.getBusname());
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} catch (DBusException e) {
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logger.error("Dbus command failed", e);
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throw new UnexpectedErrorException("Dbus command failed", e);
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}
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}
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private Thread exportMultiAccountManager(
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final DBusConnection conn, final Manager m, final boolean noReceiveOnStart
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) {
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try {
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final var objectPath = DbusConfig.getObjectPath(m.getSelfNumber());
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return exportDbusObject(conn, objectPath, m, noReceiveOnStart);
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} catch (DBusException e) {
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logger.error("Failed to export object", e);
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return null;
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}
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}
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private Thread exportDbusObject(
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final DBusConnection conn, final String objectPath, final Manager m, final boolean noReceiveOnStart
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) throws DBusException {
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final var signal = new DbusSignalImpl(m, conn, objectPath, noReceiveOnStart);
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conn.exportObject(signal);
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final var initThread = new Thread(signal::initObjects);
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initThread.start();
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logger.debug("Exported dbus object: " + objectPath);
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return initThread;
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}
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interface DbusRunner {
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void run(DBusConnection connection, String objectPath) throws DBusException;
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}
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}
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