nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/commands/DaemonCommand.java

   1 package org.asamk.signal.commands;
   2
   3 import net.sourceforge.argparse4j.impl.Arguments;
   4 import net.sourceforge.argparse4j.inf.Namespace;
   5 import net.sourceforge.argparse4j.inf.Subparser;
   6
   7 import org.asamk.signal.DbusConfig;
   8 import org.asamk.signal.DbusReceiveMessageHandler;
   9 import org.asamk.signal.JsonDbusReceiveMessageHandler;
  10 import org.asamk.signal.JsonWriter;
  11 import org.asamk.signal.OutputType;
  12 import org.asamk.signal.OutputWriter;
  13 import org.asamk.signal.PlainTextWriter;
  14 import org.asamk.signal.commands.exceptions.CommandException;
  15 import org.asamk.signal.commands.exceptions.UnexpectedErrorException;
  16 import org.asamk.signal.dbus.DbusSignalControlImpl;
  17 import org.asamk.signal.dbus.DbusSignalImpl;
  18 import org.asamk.signal.manager.Manager;
  19 import org.freedesktop.dbus.connections.impl.DBusConnection;
  20 import org.freedesktop.dbus.exceptions.DBusException;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 import java.io.IOException;
  25 import java.util.List;
  26 import java.util.concurrent.TimeUnit;
  27
  28 public class DaemonCommand implements MultiLocalCommand {
  29
  30     private final static Logger logger = LoggerFactory.getLogger(DaemonCommand.class);
  31
  32     @Override
  33     public String getName() {
  34         return "daemon";
  35     }
  36
  37     @Override
  38     public void attachToSubparser(final Subparser subparser) {
  39         subparser.help("Run in daemon mode and provide an experimental dbus interface.");
  40         subparser.addArgument("--system")
  41                 .action(Arguments.storeTrue())
  42                 .help("Use DBus system bus instead of user bus.");
  43         subparser.addArgument("--ignore-attachments")
  44                 .help("Don’t download attachments of received messages.")
  45                 .action(Arguments.storeTrue());
  46     }
  47
  48     @Override
  49     public List<OutputType> getSupportedOutputTypes() {
  50         return List.of(OutputType.PLAIN_TEXT, OutputType.JSON);
  51     }
  52
  53     @Override
  54     public void handleCommand(
  55             final Namespace ns, final Manager m, final OutputWriter outputWriter
  56     ) throws CommandException {
  57         boolean ignoreAttachments = Boolean.TRUE.equals(ns.getBoolean("ignore-attachments"));
  58
  59         DBusConnection.DBusBusType busType;
  60         if (Boolean.TRUE.equals(ns.getBoolean("system"))) {
  61             busType = DBusConnection.DBusBusType.SYSTEM;
  62         } else {
  63             busType = DBusConnection.DBusBusType.SESSION;
  64         }
  65
  66         try (var conn = DBusConnection.getConnection(busType)) {
  67             var objectPath = DbusConfig.getObjectPath();
  68             var t = run(conn, objectPath, m, outputWriter, ignoreAttachments);
  69
  70             conn.requestBusName(DbusConfig.getBusname());
  71
  72             try {
  73                 t.join();
  74             } catch (InterruptedException ignored) {
  75             }
  76         } catch (DBusException | IOException e) {
  77             logger.error("Dbus command failed", e);
  78             throw new UnexpectedErrorException("Dbus command failed", e);
  79         }
  80     }
  81
  82     @Override
  83     public void handleCommand(
  84             final Namespace ns, final List<Manager> managers, final SignalCreator c, final OutputWriter outputWriter
  85     ) throws CommandException {
  86         boolean ignoreAttachments = Boolean.TRUE.equals(ns.getBoolean("ignore-attachments"));
  87
  88         DBusConnection.DBusBusType busType;
  89         if (Boolean.TRUE.equals(ns.getBoolean("system"))) {
  90             busType = DBusConnection.DBusBusType.SYSTEM;
  91         } else {
  92             busType = DBusConnection.DBusBusType.SESSION;
  93         }
  94
  95         try (var conn = DBusConnection.getConnection(busType)) {
  96             final var signalControl = new DbusSignalControlImpl(c, m -> {
  97                 try {
  98                     final var objectPath = DbusConfig.getObjectPath(m.getSelfNumber());
  99                     return run(conn, objectPath, m, outputWriter, ignoreAttachments);
 100                 } catch (DBusException e) {
 101                     logger.error("Failed to export object", e);
 102                     return null;
 103                 }
 104             }, DbusConfig.getObjectPath());
 105             conn.exportObject(signalControl);
 106
 107             for (var m : managers) {
 108                 signalControl.addManager(m);
 109             }
 110
 111             conn.requestBusName(DbusConfig.getBusname());
 112
 113             signalControl.run();
 114         } catch (DBusException | IOException e) {
 115             logger.error("Dbus command failed", e);
 116             throw new UnexpectedErrorException("Dbus command failed", e);
 117         }
 118     }
 119
 120     private Thread run(
 121             DBusConnection conn, String objectPath, Manager m, OutputWriter outputWriter, boolean ignoreAttachments
 122     ) throws DBusException {
 123         final var signal = new DbusSignalImpl(m, conn, objectPath);
 124         conn.exportObject(signal);
 125         final var initThread = new Thread(signal::initObjects);
 126         initThread.start();
 127
 128         logger.info("Exported dbus object: " + objectPath);
 129
 130         final var thread = new Thread(() -> {
 131             while (!Thread.interrupted()) {
 132                 try {
 133                     final var receiveMessageHandler = outputWriter instanceof JsonWriter
 134                             ? new JsonDbusReceiveMessageHandler(m, (JsonWriter) outputWriter, conn, objectPath)
 135                             : new DbusReceiveMessageHandler(m, (PlainTextWriter) outputWriter, conn, objectPath);
 136                     m.receiveMessages(1, TimeUnit.HOURS, false, ignoreAttachments, receiveMessageHandler);
 137                     break;
 138                 } catch (IOException e) {
 139                     logger.warn("Receiving messages failed, retrying", e);
 140                 }
 141             }
 142             try {
 143                 initThread.join();
 144             } catch (InterruptedException ignored) {
 145             }
 146             signal.close();
 147         });
 148
 149         thread.start();
 150
 151         return thread;
 152     }
 153 }