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