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

   1 /**
   2  * Copyright (C) 2015 AsamK
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal;
  18
  19 import net.sourceforge.argparse4j.ArgumentParsers;
  20 import net.sourceforge.argparse4j.impl.Arguments;
  21 import net.sourceforge.argparse4j.inf.*;
  22 import org.apache.http.util.TextUtils;
  23 import org.asamk.Signal;
  24 import org.freedesktop.dbus.DBusConnection;
  25 import org.freedesktop.dbus.DBusSigHandler;
  26 import org.freedesktop.dbus.exceptions.DBusException;
  27 import org.freedesktop.dbus.exceptions.DBusExecutionException;
  28 import org.whispersystems.libsignal.InvalidKeyException;
  29 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  30 import org.whispersystems.signalservice.api.messages.*;
  31 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
  32 import org.whispersystems.signalservice.api.messages.multidevice.ReadMessage;
  33 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
  34 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  35 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  36 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
  37 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
  38 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
  39 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
  40
  41 import java.io.File;
  42 import java.io.IOException;
  43 import java.io.InputStream;
  44 import java.io.StringWriter;
  45 import java.net.URI;
  46 import java.net.URISyntaxException;
  47 import java.nio.charset.Charset;
  48 import java.security.Security;
  49 import java.util.ArrayList;
  50 import java.util.List;
  51 import java.util.concurrent.TimeoutException;
  52
  53 public class Main {
  54
  55     public static final String SIGNAL_BUSNAME = "org.asamk.Signal";
  56     public static final String SIGNAL_OBJECTPATH = "/org/asamk/Signal";
  57
  58     public static void main(String[] args) {
  59         // Workaround for BKS truststore
  60         Security.insertProviderAt(new org.bouncycastle.jce.provider.BouncyCastleProvider(), 1);
  61
  62         Namespace ns = parseArgs(args);
  63         if (ns == null) {
  64             System.exit(1);
  65         }
  66
  67         int res = handleCommands(ns);
  68         System.exit(res);
  69     }
  70
  71     private static int handleCommands(Namespace ns) {
  72         final String username = ns.getString("username");
  73         Manager m;
  74         Signal ts;
  75         DBusConnection dBusConn = null;
  76         try {
  77             if (ns.getBoolean("dbus") || ns.getBoolean("dbus_system")) {
  78                 try {
  79                     m = null;
  80                     int busType;
  81                     if (ns.getBoolean("dbus_system")) {
  82                         busType = DBusConnection.SYSTEM;
  83                     } else {
  84                         busType = DBusConnection.SESSION;
  85                     }
  86                     dBusConn = DBusConnection.getConnection(busType);
  87                     ts = (Signal) dBusConn.getRemoteObject(
  88                             SIGNAL_BUSNAME, SIGNAL_OBJECTPATH,
  89                             Signal.class);
  90                 } catch (DBusException e) {
  91                     e.printStackTrace();
  92                     if (dBusConn != null) {
  93                         dBusConn.disconnect();
  94                     }
  95                     return 3;
  96                 }
  97             } else {
  98                 String settingsPath = ns.getString("config");
  99                 if (TextUtils.isEmpty(settingsPath)) {
 100                     settingsPath = System.getProperty("user.home") + "/.config/signal";
 101                     if (!new File(settingsPath).exists()) {
 102                         String legacySettingsPath = System.getProperty("user.home") + "/.config/textsecure";
 103                         if (new File(legacySettingsPath).exists()) {
 104                             settingsPath = legacySettingsPath;
 105                         }
 106                     }
 107                 }
 108
 109                 m = new Manager(username, settingsPath);
 110                 ts = m;
 111                 if (m.userExists()) {
 112                     try {
 113                         m.load();
 114                     } catch (Exception e) {
 115                         System.err.println("Error loading state file \"" + m.getFileName() + "\": " + e.getMessage());
 116                         return 2;
 117                     }
 118                 }
 119             }
 120
 121             switch (ns.getString("command")) {
 122                 case "register":
 123                     if (dBusConn != null) {
 124                         System.err.println("register is not yet implemented via dbus");
 125                         return 1;
 126                     }
 127                     if (!m.userHasKeys()) {
 128                         m.createNewIdentity();
 129                     }
 130                     try {
 131                         m.register(ns.getBoolean("voice"));
 132                     } catch (IOException e) {
 133                         System.err.println("Request verify error: " + e.getMessage());
 134                         return 3;
 135                     }
 136                     break;
 137                 case "verify":
 138                     if (dBusConn != null) {
 139                         System.err.println("verify is not yet implemented via dbus");
 140                         return 1;
 141                     }
 142                     if (!m.userHasKeys()) {
 143                         System.err.println("User has no keys, first call register.");
 144                         return 1;
 145                     }
 146                     if (m.isRegistered()) {
 147                         System.err.println("User registration is already verified");
 148                         return 1;
 149                     }
 150                     try {
 151                         m.verifyAccount(ns.getString("verificationCode"));
 152                     } catch (IOException e) {
 153                         System.err.println("Verify error: " + e.getMessage());
 154                         return 3;
 155                     }
 156                     break;
 157                 case "link":
 158                     if (dBusConn != null) {
 159                         System.err.println("link is not yet implemented via dbus");
 160                         return 1;
 161                     }
 162
 163                     // When linking, username is null and we always have to create keys
 164                     m.createNewIdentity();
 165
 166                     String deviceName = ns.getString("name");
 167                     if (deviceName == null) {
 168                         deviceName = "cli";
 169                     }
 170                     try {
 171                         System.out.println(m.getDeviceLinkUri());
 172                         m.finishDeviceLink(deviceName);
 173                         System.out.println("Associated with: " + m.getUsername());
 174                     } catch (TimeoutException e) {
 175                         System.err.println("Link request timed out, please try again.");
 176                         return 3;
 177                     } catch (IOException e) {
 178                         System.err.println("Link request error: " + e.getMessage());
 179                         return 3;
 180                     } catch (InvalidKeyException e) {
 181                         e.printStackTrace();
 182                         return 2;
 183                     } catch (UserAlreadyExists e) {
 184                         System.err.println("The user " + e.getUsername() + " already exists\nDelete \"" + e.getFileName() + "\" before trying again.");
 185                         return 1;
 186                     }
 187                     break;
 188                 case "addDevice":
 189                     if (dBusConn != null) {
 190                         System.err.println("link is not yet implemented via dbus");
 191                         return 1;
 192                     }
 193                     if (!m.isRegistered()) {
 194                         System.err.println("User is not registered.");
 195                         return 1;
 196                     }
 197                     try {
 198                         m.addDeviceLink(new URI(ns.getString("uri")));
 199                     } catch (IOException e) {
 200                         e.printStackTrace();
 201                         return 3;
 202                     } catch (InvalidKeyException e) {
 203                         e.printStackTrace();
 204                         return 2;
 205                     } catch (URISyntaxException e) {
 206                         e.printStackTrace();
 207                         return 2;
 208                     }
 209                     break;
 210                 case "listDevices":
 211                     if (dBusConn != null) {
 212                         System.err.println("listDevices is not yet implemented via dbus");
 213                         return 1;
 214                     }
 215                     if (!m.isRegistered()) {
 216                         System.err.println("User is not registered.");
 217                         return 1;
 218                     }
 219                     try {
 220                         List<DeviceInfo> devices = m.getLinkedDevices();
 221                         for (DeviceInfo d : devices) {
 222                             System.out.println("Device " + d.getId() + (d.getId() == m.getDeviceId() ? " (this device)" : "") + ":");
 223                             System.out.println(" Name: " + d.getName());
 224                             System.out.println(" Created: " + d.getCreated());
 225                             System.out.println(" Last seen: " + d.getLastSeen());
 226                         }
 227                     } catch (IOException e) {
 228                         e.printStackTrace();
 229                         return 3;
 230                     }
 231                     break;
 232                 case "removeDevice":
 233                     if (dBusConn != null) {
 234                         System.err.println("removeDevice is not yet implemented via dbus");
 235                         return 1;
 236                     }
 237                     if (!m.isRegistered()) {
 238                         System.err.println("User is not registered.");
 239                         return 1;
 240                     }
 241                     try {
 242                         int deviceId = ns.getInt("deviceId");
 243                         m.removeLinkedDevices(deviceId);
 244                     } catch (IOException e) {
 245                         e.printStackTrace();
 246                         return 3;
 247                     }
 248                     break;
 249                 case "send":
 250                     if (dBusConn == null && !m.isRegistered()) {
 251                         System.err.println("User is not registered.");
 252                         return 1;
 253                     }
 254
 255                     if (ns.getBoolean("endsession")) {
 256                         if (ns.getList("recipient") == null) {
 257                             System.err.println("No recipients given");
 258                             System.err.println("Aborting sending.");
 259                             return 1;
 260                         }
 261                         try {
 262                             ts.sendEndSessionMessage(ns.<String>getList("recipient"));
 263                         } catch (IOException e) {
 264                             handleIOException(e);
 265                             return 3;
 266                         } catch (EncapsulatedExceptions e) {
 267                             handleEncapsulatedExceptions(e);
 268                             return 3;
 269                         } catch (AssertionError e) {
 270                             handleAssertionError(e);
 271                             return 1;
 272                         } catch (DBusExecutionException e) {
 273                             handleDBusExecutionException(e);
 274                             return 1;
 275                         }
 276                     } else {
 277                         String messageText = ns.getString("message");
 278                         if (messageText == null) {
 279                             try {
 280                                 messageText = readAll(System.in);
 281                             } catch (IOException e) {
 282                                 System.err.println("Failed to read message from stdin: " + e.getMessage());
 283                                 System.err.println("Aborting sending.");
 284                                 return 1;
 285                             }
 286                         }
 287
 288                         try {
 289                             List<String> attachments = ns.getList("attachment");
 290                             if (attachments == null) {
 291                                 attachments = new ArrayList<>();
 292                             }
 293                             if (ns.getString("group") != null) {
 294                                 byte[] groupId = decodeGroupId(ns.getString("group"));
 295                                 ts.sendGroupMessage(messageText, attachments, groupId);
 296                             } else {
 297                                 ts.sendMessage(messageText, attachments, ns.<String>getList("recipient"));
 298                             }
 299                         } catch (IOException e) {
 300                             handleIOException(e);
 301                             return 3;
 302                         } catch (EncapsulatedExceptions e) {
 303                             handleEncapsulatedExceptions(e);
 304                             return 3;
 305                         } catch (AssertionError e) {
 306                             handleAssertionError(e);
 307                             return 1;
 308                         } catch (GroupNotFoundException e) {
 309                             handleGroupNotFoundException(e);
 310                             return 1;
 311                         } catch (AttachmentInvalidException e) {
 312                             System.err.println("Failed to add attachment: " + e.getMessage());
 313                             System.err.println("Aborting sending.");
 314                             return 1;
 315                         } catch (DBusExecutionException e) {
 316                             handleDBusExecutionException(e);
 317                             return 1;
 318                         }
 319                     }
 320
 321                     break;
 322                 case "receive":
 323                     if (dBusConn != null) {
 324                         try {
 325                             dBusConn.addSigHandler(Signal.MessageReceived.class, new DBusSigHandler<Signal.MessageReceived>() {
 326                                 @Override
 327                                 public void handle(Signal.MessageReceived s) {
 328                                     System.out.print(String.format("Envelope from: %s\nTimestamp: %d\nBody: %s\n",
 329                                             s.getSender(), s.getTimestamp(), s.getMessage()));
 330                                     if (s.getGroupId().length > 0) {
 331                                         System.out.println("Group info:");
 332                                         System.out.println("  Id: " + Base64.encodeBytes(s.getGroupId()));
 333                                     }
 334                                     if (s.getAttachments().size() > 0) {
 335                                         System.out.println("Attachments: ");
 336                                         for (String attachment : s.getAttachments()) {
 337                                             System.out.println("-  Stored plaintext in: " + attachment);
 338                                         }
 339                                     }
 340                                     System.out.println();
 341                                 }
 342                             });
 343                         } catch (DBusException e) {
 344                             e.printStackTrace();
 345                             return 1;
 346                         }
 347                         while (true) {
 348                             try {
 349                                 Thread.sleep(10000);
 350                             } catch (InterruptedException e) {
 351                                 return 0;
 352                             }
 353                         }
 354                     }
 355                     if (!m.isRegistered()) {
 356                         System.err.println("User is not registered.");
 357                         return 1;
 358                     }
 359                     int timeout = 5;
 360                     if (ns.getInt("timeout") != null) {
 361                         timeout = ns.getInt("timeout");
 362                     }
 363                     boolean returnOnTimeout = true;
 364                     if (timeout < 0) {
 365                         returnOnTimeout = false;
 366                         timeout = 3600;
 367                     }
 368                     try {
 369                         m.receiveMessages(timeout, returnOnTimeout, new ReceiveMessageHandler(m));
 370                     } catch (IOException e) {
 371                         System.err.println("Error while receiving messages: " + e.getMessage());
 372                         return 3;
 373                     } catch (AssertionError e) {
 374                         handleAssertionError(e);
 375                         return 1;
 376                     }
 377                     break;
 378                 case "quitGroup":
 379                     if (dBusConn != null) {
 380                         System.err.println("quitGroup is not yet implemented via dbus");
 381                         return 1;
 382                     }
 383                     if (!m.isRegistered()) {
 384                         System.err.println("User is not registered.");
 385                         return 1;
 386                     }
 387
 388                     try {
 389                         m.sendQuitGroupMessage(decodeGroupId(ns.getString("group")));
 390                     } catch (IOException e) {
 391                         handleIOException(e);
 392                         return 3;
 393                     } catch (EncapsulatedExceptions e) {
 394                         handleEncapsulatedExceptions(e);
 395                         return 3;
 396                     } catch (AssertionError e) {
 397                         handleAssertionError(e);
 398                         return 1;
 399                     } catch (GroupNotFoundException e) {
 400                         handleGroupNotFoundException(e);
 401                         return 1;
 402                     }
 403
 404                     break;
 405                 case "updateGroup":
 406                     if (dBusConn != null) {
 407                         System.err.println("updateGroup is not yet implemented via dbus");
 408                         return 1;
 409                     }
 410                     if (!m.isRegistered()) {
 411                         System.err.println("User is not registered.");
 412                         return 1;
 413                     }
 414
 415                     try {
 416                         byte[] groupId = null;
 417                         if (ns.getString("group") != null) {
 418                             groupId = decodeGroupId(ns.getString("group"));
 419                         }
 420                         byte[] newGroupId = m.sendUpdateGroupMessage(groupId, ns.getString("name"), ns.<String>getList("member"), ns.getString("avatar"));
 421                         if (groupId == null) {
 422                             System.out.println("Creating new group \"" + Base64.encodeBytes(newGroupId) + "\" …");
 423                         }
 424                     } catch (IOException e) {
 425                         handleIOException(e);
 426                         return 3;
 427                     } catch (AttachmentInvalidException e) {
 428                         System.err.println("Failed to add avatar attachment for group\": " + e.getMessage());
 429                         System.err.println("Aborting sending.");
 430                         return 1;
 431                     } catch (GroupNotFoundException e) {
 432                         handleGroupNotFoundException(e);
 433                         return 1;
 434                     } catch (EncapsulatedExceptions e) {
 435                         handleEncapsulatedExceptions(e);
 436                         return 3;
 437                     }
 438
 439                     break;
 440                 case "daemon":
 441                     if (dBusConn != null) {
 442                         System.err.println("Stop it.");
 443                         return 1;
 444                     }
 445                     if (!m.isRegistered()) {
 446                         System.err.println("User is not registered.");
 447                         return 1;
 448                     }
 449                     DBusConnection conn = null;
 450                     try {
 451                         try {
 452                             int busType;
 453                             if (ns.getBoolean("system")) {
 454                                 busType = DBusConnection.SYSTEM;
 455                             } else {
 456                                 busType = DBusConnection.SESSION;
 457                             }
 458                             conn = DBusConnection.getConnection(busType);
 459                             conn.exportObject(SIGNAL_OBJECTPATH, m);
 460                             conn.requestBusName(SIGNAL_BUSNAME);
 461                         } catch (DBusException e) {
 462                             e.printStackTrace();
 463                             return 2;
 464                         }
 465                         try {
 466                             m.receiveMessages(3600, false, new DbusReceiveMessageHandler(m, conn));
 467                         } catch (IOException e) {
 468                             System.err.println("Error while receiving messages: " + e.getMessage());
 469                             return 3;
 470                         } catch (AssertionError e) {
 471                             handleAssertionError(e);
 472                             return 1;
 473                         }
 474                     } finally {
 475                         if (conn != null) {
 476                             conn.disconnect();
 477                         }
 478                     }
 479
 480                     break;
 481             }
 482             return 0;
 483         } finally {
 484             if (dBusConn != null) {
 485                 dBusConn.disconnect();
 486             }
 487         }
 488     }
 489
 490     private static void handleGroupNotFoundException(GroupNotFoundException e) {
 491         System.err.println("Failed to send to group: " + e.getMessage());
 492         System.err.println("Aborting sending.");
 493     }
 494
 495     private static void handleDBusExecutionException(DBusExecutionException e) {
 496         System.err.println("Cannot connect to dbus: " + e.getMessage());
 497         System.err.println("Aborting.");
 498     }
 499
 500     private static byte[] decodeGroupId(String groupId) {
 501         try {
 502             return Base64.decode(groupId);
 503         } catch (IOException e) {
 504             System.err.println("Failed to decode groupId (must be base64) \"" + groupId + "\": " + e.getMessage());
 505             System.err.println("Aborting sending.");
 506             System.exit(1);
 507             return null;
 508         }
 509     }
 510
 511     private static Namespace parseArgs(String[] args) {
 512         ArgumentParser parser = ArgumentParsers.newArgumentParser("signal-cli")
 513                 .defaultHelp(true)
 514                 .description("Commandline interface for Signal.")
 515                 .version(Manager.PROJECT_NAME + " " + Manager.PROJECT_VERSION);
 516
 517         parser.addArgument("-v", "--version")
 518                 .help("Show package version.")
 519                 .action(Arguments.version());
 520         parser.addArgument("--config")
 521                 .help("Set the path, where to store the config (Default: $HOME/.config/signal).");
 522
 523         MutuallyExclusiveGroup mut = parser.addMutuallyExclusiveGroup();
 524         mut.addArgument("-u", "--username")
 525                 .help("Specify your phone number, that will be used for verification.");
 526         mut.addArgument("--dbus")
 527                 .help("Make request via user dbus.")
 528                 .action(Arguments.storeTrue());
 529         mut.addArgument("--dbus-system")
 530                 .help("Make request via system dbus.")
 531                 .action(Arguments.storeTrue());
 532
 533         Subparsers subparsers = parser.addSubparsers()
 534                 .title("subcommands")
 535                 .dest("command")
 536                 .description("valid subcommands")
 537                 .help("additional help");
 538
 539         Subparser parserLink = subparsers.addParser("link");
 540         parserLink.addArgument("-n", "--name")
 541                 .help("Specify a name to describe this new device.");
 542
 543         Subparser parserAddDevice = subparsers.addParser("addDevice");
 544         parserAddDevice.addArgument("--uri")
 545                 .required(true)
 546                 .help("Specify the uri contained in the QR code shown by the new device.");
 547
 548         Subparser parserDevices = subparsers.addParser("listDevices");
 549
 550         Subparser parserRemoveDevice = subparsers.addParser("removeDevice");
 551         parserRemoveDevice.addArgument("-d", "--deviceId")
 552                 .type(int.class)
 553                 .required(true)
 554                 .help("Specify the device you want to remove. Use listDevices to see the deviceIds.");
 555
 556         Subparser parserRegister = subparsers.addParser("register");
 557         parserRegister.addArgument("-v", "--voice")
 558                 .help("The verification should be done over voice, not sms.")
 559                 .action(Arguments.storeTrue());
 560
 561         Subparser parserVerify = subparsers.addParser("verify");
 562         parserVerify.addArgument("verificationCode")
 563                 .help("The verification code you received via sms or voice call.");
 564
 565         Subparser parserSend = subparsers.addParser("send");
 566         parserSend.addArgument("-g", "--group")
 567                 .help("Specify the recipient group ID.");
 568         parserSend.addArgument("recipient")
 569                 .help("Specify the recipients' phone number.")
 570                 .nargs("*");
 571         parserSend.addArgument("-m", "--message")
 572                 .help("Specify the message, if missing standard input is used.");
 573         parserSend.addArgument("-a", "--attachment")
 574                 .nargs("*")
 575                 .help("Add file as attachment");
 576         parserSend.addArgument("-e", "--endsession")
 577                 .help("Clear session state and send end session message.")
 578                 .action(Arguments.storeTrue());
 579
 580         Subparser parserLeaveGroup = subparsers.addParser("quitGroup");
 581         parserLeaveGroup.addArgument("-g", "--group")
 582                 .required(true)
 583                 .help("Specify the recipient group ID.");
 584
 585         Subparser parserUpdateGroup = subparsers.addParser("updateGroup");
 586         parserUpdateGroup.addArgument("-g", "--group")
 587                 .help("Specify the recipient group ID.");
 588         parserUpdateGroup.addArgument("-n", "--name")
 589                 .help("Specify the new group name.");
 590         parserUpdateGroup.addArgument("-a", "--avatar")
 591                 .help("Specify a new group avatar image file");
 592         parserUpdateGroup.addArgument("-m", "--member")
 593                 .nargs("*")
 594                 .help("Specify one or more members to add to the group");
 595
 596         Subparser parserReceive = subparsers.addParser("receive");
 597         parserReceive.addArgument("-t", "--timeout")
 598                 .type(int.class)
 599                 .help("Number of seconds to wait for new messages (negative values disable timeout)");
 600
 601         Subparser parserDaemon = subparsers.addParser("daemon");
 602         parserDaemon.addArgument("--system")
 603                 .action(Arguments.storeTrue())
 604                 .help("Use DBus system bus instead of user bus.");
 605
 606         try {
 607             Namespace ns = parser.parseArgs(args);
 608             if ("link".equals(ns.getString("command"))) {
 609                 if (ns.getString("username") != null) {
 610                     parser.printUsage();
 611                     System.err.println("You cannot specify a username (phone number) when linking");
 612                     System.exit(2);
 613                 }
 614             } else if (!ns.getBoolean("dbus") && !ns.getBoolean("dbus_system")) {
 615                 if (ns.getString("username") == null) {
 616                     parser.printUsage();
 617                     System.err.println("You need to specify a username (phone number)");
 618                     System.exit(2);
 619                 }
 620                 if (!PhoneNumberFormatter.isValidNumber(ns.getString("username"))) {
 621                     System.err.println("Invalid username (phone number), make sure you include the country code.");
 622                     System.exit(2);
 623                 }
 624             }
 625             if (ns.getList("recipient") != null && !ns.getList("recipient").isEmpty() && ns.getString("group") != null) {
 626                 System.err.println("You cannot specify recipients by phone number and groups a the same time");
 627                 System.exit(2);
 628             }
 629             return ns;
 630         } catch (ArgumentParserException e) {
 631             parser.handleError(e);
 632             return null;
 633         }
 634     }
 635
 636     private static void handleAssertionError(AssertionError e) {
 637         System.err.println("Failed to send/receive message (Assertion): " + e.getMessage());
 638         e.printStackTrace();
 639         System.err.println("If you use an Oracle JRE please check if you have unlimited strength crypto enabled, see README");
 640     }
 641
 642     private static void handleEncapsulatedExceptions(EncapsulatedExceptions e) {
 643         System.err.println("Failed to send (some) messages:");
 644         for (NetworkFailureException n : e.getNetworkExceptions()) {
 645             System.err.println("Network failure for \"" + n.getE164number() + "\": " + n.getMessage());
 646         }
 647         for (UnregisteredUserException n : e.getUnregisteredUserExceptions()) {
 648             System.err.println("Unregistered user \"" + n.getE164Number() + "\": " + n.getMessage());
 649         }
 650         for (UntrustedIdentityException n : e.getUntrustedIdentityExceptions()) {
 651             System.err.println("Untrusted Identity for \"" + n.getE164Number() + "\": " + n.getMessage());
 652         }
 653     }
 654
 655     private static void handleIOException(IOException e) {
 656         System.err.println("Failed to send message: " + e.getMessage());
 657     }
 658
 659     private static String readAll(InputStream in) throws IOException {
 660         StringWriter output = new StringWriter();
 661         byte[] buffer = new byte[4096];
 662         long count = 0;
 663         int n;
 664         while (-1 != (n = System.in.read(buffer))) {
 665             output.write(new String(buffer, 0, n, Charset.defaultCharset()));
 666             count += n;
 667         }
 668         return output.toString();
 669     }
 670
 671     private static class ReceiveMessageHandler implements Manager.ReceiveMessageHandler {
 672         final Manager m;
 673
 674         public ReceiveMessageHandler(Manager m) {
 675             this.m = m;
 676         }
 677
 678         @Override
 679         public void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content) {
 680             SignalServiceAddress source = envelope.getSourceAddress();
 681             ContactInfo sourceContact = m.getContact(source.getNumber());
 682             System.out.println(String.format("Envelope from: %s (device: %d)", (sourceContact == null ? "" : "“" + sourceContact.name + "” ") + source.getNumber(), envelope.getSourceDevice()));
 683             if (source.getRelay().isPresent()) {
 684                 System.out.println("Relayed by: " + source.getRelay().get());
 685             }
 686             System.out.println("Timestamp: " + envelope.getTimestamp());
 687
 688             if (envelope.isReceipt()) {
 689                 System.out.println("Got receipt.");
 690             } else if (envelope.isSignalMessage() | envelope.isPreKeySignalMessage()) {
 691                 if (content == null) {
 692                     System.out.println("Failed to decrypt message.");
 693                 } else {
 694                     if (content.getDataMessage().isPresent()) {
 695                         SignalServiceDataMessage message = content.getDataMessage().get();
 696                         handleSignalServiceDataMessage(message);
 697                     }
 698                     if (content.getSyncMessage().isPresent()) {
 699                         System.out.println("Received a sync message");
 700                         SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
 701
 702                         if (syncMessage.getContacts().isPresent()) {
 703                             System.out.println("Received sync contacts");
 704                             printAttachment(syncMessage.getContacts().get());
 705                         }
 706                         if (syncMessage.getGroups().isPresent()) {
 707                             System.out.println("Received sync groups");
 708                             printAttachment(syncMessage.getGroups().get());
 709                         }
 710                         if (syncMessage.getRead().isPresent()) {
 711                             System.out.println("Received sync read messages list");
 712                             for (ReadMessage rm : syncMessage.getRead().get()) {
 713                                 ContactInfo fromContact = m.getContact(rm.getSender());
 714                                 System.out.println("From: " + (fromContact == null ? "" : "“" + fromContact.name + "” ") + rm.getSender() + " Message timestamp: " + rm.getTimestamp());
 715                             }
 716                         }
 717                         if (syncMessage.getRequest().isPresent()) {
 718                             System.out.println("Received sync request");
 719                             if (syncMessage.getRequest().get().isContactsRequest()) {
 720                                 System.out.println(" - contacts request");
 721                             }
 722                             if (syncMessage.getRequest().get().isGroupsRequest()) {
 723                                 System.out.println(" - groups request");
 724                             }
 725                         }
 726                         if (syncMessage.getSent().isPresent()) {
 727                             System.out.println("Received sync sent message");
 728                             final SentTranscriptMessage sentTranscriptMessage = syncMessage.getSent().get();
 729                             String to;
 730                             if (sentTranscriptMessage.getDestination().isPresent()) {
 731                                 String dest = sentTranscriptMessage.getDestination().get();
 732                                 ContactInfo destContact = m.getContact(dest);
 733                                 to = (destContact == null ? "" : "“" + destContact.name + "” ") + dest;
 734                             } else {
 735                                 to = "Unknown";
 736                             }
 737                             System.out.println("To: " + to + " , Message timestamp: " + sentTranscriptMessage.getTimestamp());
 738                             SignalServiceDataMessage message = sentTranscriptMessage.getMessage();
 739                             handleSignalServiceDataMessage(message);
 740                         }
 741                     }
 742                 }
 743             } else {
 744                 System.out.println("Unknown message received.");
 745             }
 746             System.out.println();
 747         }
 748
 749         private void handleSignalServiceDataMessage(SignalServiceDataMessage message) {
 750             System.out.println("Message timestamp: " + message.getTimestamp());
 751
 752             if (message.getBody().isPresent()) {
 753                 System.out.println("Body: " + message.getBody().get());
 754             }
 755             if (message.getGroupInfo().isPresent()) {
 756                 SignalServiceGroup groupInfo = message.getGroupInfo().get();
 757                 System.out.println("Group info:");
 758                 System.out.println("  Id: " + Base64.encodeBytes(groupInfo.getGroupId()));
 759                 if (groupInfo.getType() == SignalServiceGroup.Type.UPDATE && groupInfo.getName().isPresent()) {
 760                     System.out.println("  Name: " + groupInfo.getName().get());
 761                 } else {
 762                     GroupInfo group = m.getGroup(groupInfo.getGroupId());
 763                     if (group != null) {
 764                         System.out.println("  Name: " + group.name);
 765                     } else {
 766                         System.out.println("  Name: <Unknown group>");
 767                     }
 768                 }
 769                 System.out.println("  Type: " + groupInfo.getType());
 770                 if (groupInfo.getMembers().isPresent()) {
 771                     for (String member : groupInfo.getMembers().get()) {
 772                         System.out.println("  Member: " + member);
 773                     }
 774                 }
 775                 if (groupInfo.getAvatar().isPresent()) {
 776                     System.out.println("  Avatar:");
 777                     printAttachment(groupInfo.getAvatar().get());
 778                 }
 779             }
 780             if (message.isEndSession()) {
 781                 System.out.println("Is end session");
 782             }
 783
 784             if (message.getAttachments().isPresent()) {
 785                 System.out.println("Attachments: ");
 786                 for (SignalServiceAttachment attachment : message.getAttachments().get()) {
 787                     printAttachment(attachment);
 788                 }
 789             }
 790         }
 791
 792         private void printAttachment(SignalServiceAttachment attachment) {
 793             System.out.println("- " + attachment.getContentType() + " (" + (attachment.isPointer() ? "Pointer" : "") + (attachment.isStream() ? "Stream" : "") + ")");
 794             if (attachment.isPointer()) {
 795                 final SignalServiceAttachmentPointer pointer = attachment.asPointer();
 796                 System.out.println("  Id: " + pointer.getId() + " Key length: " + pointer.getKey().length + (pointer.getRelay().isPresent() ? " Relay: " + pointer.getRelay().get() : ""));
 797                 System.out.println("  Size: " + (pointer.getSize().isPresent() ? pointer.getSize().get() + " bytes" : "<unavailable>") + (pointer.getPreview().isPresent() ? " (Preview is available: " + pointer.getPreview().get().length + " bytes)" : ""));
 798                 File file = m.getAttachmentFile(pointer.getId());
 799                 if (file.exists()) {
 800                     System.out.println("  Stored plaintext in: " + file);
 801                 }
 802             }
 803         }
 804     }
 805
 806     private static class DbusReceiveMessageHandler extends ReceiveMessageHandler {
 807         final DBusConnection conn;
 808
 809         public DbusReceiveMessageHandler(Manager m, DBusConnection conn) {
 810             super(m);
 811             this.conn = conn;
 812         }
 813
 814         @Override
 815         public void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content) {
 816             super.handleMessage(envelope, content);
 817
 818             if (!envelope.isReceipt() && content != null && content.getDataMessage().isPresent()) {
 819                 SignalServiceDataMessage message = content.getDataMessage().get();
 820
 821                 if (!message.isEndSession() &&
 822                         !(message.getGroupInfo().isPresent() &&
 823                                 message.getGroupInfo().get().getType() != SignalServiceGroup.Type.DELIVER)) {
 824                     List<String> attachments = new ArrayList<>();
 825                     if (message.getAttachments().isPresent()) {
 826                         for (SignalServiceAttachment attachment : message.getAttachments().get()) {
 827                             if (attachment.isPointer()) {
 828                                 attachments.add(m.getAttachmentFile(attachment.asPointer().getId()).getAbsolutePath());
 829                             }
 830                         }
 831                     }
 832
 833                     try {
 834                         conn.sendSignal(new Signal.MessageReceived(
 835                                 SIGNAL_OBJECTPATH,
 836                                 message.getTimestamp(),
 837                                 envelope.getSource(),
 838                                 message.getGroupInfo().isPresent() ? message.getGroupInfo().get().getGroupId() : new byte[0],
 839                                 message.getBody().isPresent() ? message.getBody().get() : "",
 840                                 attachments));
 841                     } catch (DBusException e) {
 842                         e.printStackTrace();
 843                     }
 844                 }
 845             }
 846         }
 847
 848     }
 849 }