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.commons.io.IOUtils;
  23 import org.apache.http.util.TextUtils;
  24 import org.asamk.Signal;
  25 import org.freedesktop.dbus.DBusConnection;
  26 import org.freedesktop.dbus.DBusSigHandler;
  27 import org.freedesktop.dbus.exceptions.DBusException;
  28 import org.freedesktop.dbus.exceptions.DBusExecutionException;
  29 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  30 import org.whispersystems.signalservice.api.messages.*;
  31 import org.whispersystems.signalservice.api.messages.multidevice.ReadMessage;
  32 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
  33 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  34 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  35 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
  36 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
  37 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
  38 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
  39
  40 import java.io.File;
  41 import java.io.IOException;
  42 import java.security.Security;
  43 import java.util.ArrayList;
  44 import java.util.List;
  45
  46 public class Main {
  47
  48     public static final String SIGNAL_BUSNAME = "org.asamk.Signal";
  49     public static final String SIGNAL_OBJECTPATH = "/org/asamk/Signal";
  50
  51     public static void main(String[] args) {
  52         // Workaround for BKS truststore
  53         Security.insertProviderAt(new org.bouncycastle.jce.provider.BouncyCastleProvider(), 1);
  54
  55         Namespace ns = parseArgs(args);
  56         if (ns == null) {
  57             System.exit(1);
  58         }
  59
  60         final String username = ns.getString("username");
  61         Manager m;
  62         Signal ts;
  63         DBusConnection dBusConn = null;
  64         try {
  65             if (ns.getBoolean("dbus") || ns.getBoolean("dbus_system")) {
  66                 try {
  67                     m = null;
  68                     int busType;
  69                     if (ns.getBoolean("dbus_system")) {
  70                         busType = DBusConnection.SYSTEM;
  71                     } else {
  72                         busType = DBusConnection.SESSION;
  73                     }
  74                     dBusConn = DBusConnection.getConnection(busType);
  75                     ts = (Signal) dBusConn.getRemoteObject(
  76                             SIGNAL_BUSNAME, SIGNAL_OBJECTPATH,
  77                             Signal.class);
  78                 } catch (DBusException e) {
  79                     e.printStackTrace();
  80                     if (dBusConn != null) {
  81                         dBusConn.disconnect();
  82                     }
  83                     System.exit(3);
  84                     return;
  85                 }
  86             } else {
  87                 String settingsPath = ns.getString("config");
  88                 if (TextUtils.isEmpty(settingsPath)) {
  89                     settingsPath = System.getProperty("user.home") + "/.config/signal";
  90                     if (!new File(settingsPath).exists()) {
  91                         String legacySettingsPath = System.getProperty("user.home") + "/.config/textsecure";
  92                         if (new File(legacySettingsPath).exists()) {
  93                             settingsPath = legacySettingsPath;
  94                         }
  95                     }
  96                 }
  97
  98                 m = new Manager(username, settingsPath);
  99                 ts = m;
 100                 if (m.userExists()) {
 101                     try {
 102                         m.load();
 103                     } catch (Exception e) {
 104                         System.err.println("Error loading state file \"" + m.getFileName() + "\": " + e.getMessage());
 105                         System.exit(2);
 106                         return;
 107                     }
 108                 }
 109             }
 110
 111             switch (ns.getString("command")) {
 112                 case "register":
 113                     if (dBusConn != null) {
 114                         System.err.println("register is not yet implemented via dbus");
 115                         System.exit(1);
 116                     }
 117                     if (!m.userHasKeys()) {
 118                         m.createNewIdentity();
 119                     }
 120                     try {
 121                         m.register(ns.getBoolean("voice"));
 122                     } catch (IOException e) {
 123                         System.err.println("Request verify error: " + e.getMessage());
 124                         System.exit(3);
 125                     }
 126                     break;
 127                 case "verify":
 128                     if (dBusConn != null) {
 129                         System.err.println("verify is not yet implemented via dbus");
 130                         System.exit(1);
 131                     }
 132                     if (!m.userHasKeys()) {
 133                         System.err.println("User has no keys, first call register.");
 134                         System.exit(1);
 135                     }
 136                     if (m.isRegistered()) {
 137                         System.err.println("User registration is already verified");
 138                         System.exit(1);
 139                     }
 140                     try {
 141                         m.verifyAccount(ns.getString("verificationCode"));
 142                     } catch (IOException e) {
 143                         System.err.println("Verify error: " + e.getMessage());
 144                         System.exit(3);
 145                     }
 146                     break;
 147                 case "send":
 148                     if (dBusConn == null && !m.isRegistered()) {
 149                         System.err.println("User is not registered.");
 150                         System.exit(1);
 151                     }
 152
 153                     if (ns.getBoolean("endsession")) {
 154                         if (ns.getList("recipient") == null) {
 155                             System.err.println("No recipients given");
 156                             System.err.println("Aborting sending.");
 157                             System.exit(1);
 158                         }
 159                         try {
 160                             ts.sendEndSessionMessage(ns.<String>getList("recipient"));
 161                         } catch (IOException e) {
 162                             handleIOException(e);
 163                         } catch (EncapsulatedExceptions e) {
 164                             handleEncapsulatedExceptions(e);
 165                         } catch (AssertionError e) {
 166                             handleAssertionError(e);
 167                         } catch (DBusExecutionException e) {
 168                             handleDBusExecutionException(e);
 169                         } catch (UntrustedIdentityException e) {
 170                             e.printStackTrace();
 171                         }
 172                     } else {
 173                         String messageText = ns.getString("message");
 174                         if (messageText == null) {
 175                             try {
 176                                 messageText = IOUtils.toString(System.in);
 177                             } catch (IOException e) {
 178                                 System.err.println("Failed to read message from stdin: " + e.getMessage());
 179                                 System.err.println("Aborting sending.");
 180                                 System.exit(1);
 181                             }
 182                         }
 183
 184                         try {
 185                             List<String> attachments = ns.getList("attachment");
 186                             if (attachments == null) {
 187                                 attachments = new ArrayList<>();
 188                             }
 189                             if (ns.getString("group") != null) {
 190                                 byte[] groupId = decodeGroupId(ns.getString("group"));
 191                                 ts.sendGroupMessage(messageText, attachments, groupId);
 192                             } else {
 193                                 ts.sendMessage(messageText, attachments, ns.<String>getList("recipient"));
 194                             }
 195                         } catch (IOException e) {
 196                             handleIOException(e);
 197                         } catch (EncapsulatedExceptions e) {
 198                             handleEncapsulatedExceptions(e);
 199                         } catch (AssertionError e) {
 200                             handleAssertionError(e);
 201                         } catch (GroupNotFoundException e) {
 202                             handleGroupNotFoundException(e);
 203                         } catch (AttachmentInvalidException e) {
 204                             System.err.println("Failed to add attachment: " + e.getMessage());
 205                             System.err.println("Aborting sending.");
 206                             System.exit(1);
 207                         } catch (DBusExecutionException e) {
 208                             handleDBusExecutionException(e);
 209                         } catch (UntrustedIdentityException e) {
 210                             e.printStackTrace();
 211                         }
 212                     }
 213
 214                     break;
 215                 case "receive":
 216                     if (dBusConn != null) {
 217                         try {
 218                             dBusConn.addSigHandler(Signal.MessageReceived.class, new DBusSigHandler<Signal.MessageReceived>() {
 219                                 @Override
 220                                 public void handle(Signal.MessageReceived s) {
 221                                     System.out.print(String.format("Envelope from: %s\nTimestamp: %d\nBody: %s\n",
 222                                             s.getSender(), s.getTimestamp(), s.getMessage()));
 223                                     if (s.getGroupId().length > 0) {
 224                                         System.out.println("Group info:");
 225                                         System.out.println("  Id: " + Base64.encodeBytes(s.getGroupId()));
 226                                     }
 227                                     if (s.getAttachments().size() > 0) {
 228                                         System.out.println("Attachments: ");
 229                                         for (String attachment : s.getAttachments()) {
 230                                             System.out.println("-  Stored plaintext in: " + attachment);
 231                                         }
 232                                     }
 233                                     System.out.println();
 234                                 }
 235                             });
 236                         } catch (DBusException e) {
 237                             e.printStackTrace();
 238                         }
 239                         while (true) {
 240                             try {
 241                                 Thread.sleep(10000);
 242                             } catch (InterruptedException e) {
 243                                 System.exit(0);
 244                             }
 245                         }
 246                     }
 247                     if (!m.isRegistered()) {
 248                         System.err.println("User is not registered.");
 249                         System.exit(1);
 250                     }
 251                     int timeout = 5;
 252                     if (ns.getInt("timeout") != null) {
 253                         timeout = ns.getInt("timeout");
 254                     }
 255                     boolean returnOnTimeout = true;
 256                     if (timeout < 0) {
 257                         returnOnTimeout = false;
 258                         timeout = 3600;
 259                     }
 260                     try {
 261                         m.receiveMessages(timeout, returnOnTimeout, new ReceiveMessageHandler(m));
 262                     } catch (IOException e) {
 263                         System.err.println("Error while receiving messages: " + e.getMessage());
 264                         System.exit(3);
 265                     } catch (AssertionError e) {
 266                         handleAssertionError(e);
 267                     }
 268                     break;
 269                 case "quitGroup":
 270                     if (dBusConn != null) {
 271                         System.err.println("quitGroup is not yet implemented via dbus");
 272                         System.exit(1);
 273                     }
 274                     if (!m.isRegistered()) {
 275                         System.err.println("User is not registered.");
 276                         System.exit(1);
 277                     }
 278
 279                     try {
 280                         m.sendQuitGroupMessage(decodeGroupId(ns.getString("group")));
 281                     } catch (IOException e) {
 282                         handleIOException(e);
 283                     } catch (EncapsulatedExceptions e) {
 284                         handleEncapsulatedExceptions(e);
 285                     } catch (AssertionError e) {
 286                         handleAssertionError(e);
 287                     } catch (GroupNotFoundException e) {
 288                         handleGroupNotFoundException(e);
 289                     } catch (UntrustedIdentityException e) {
 290                         e.printStackTrace();
 291                     }
 292
 293                     break;
 294                 case "updateGroup":
 295                     if (dBusConn != null) {
 296                         System.err.println("updateGroup is not yet implemented via dbus");
 297                         System.exit(1);
 298                     }
 299                     if (!m.isRegistered()) {
 300                         System.err.println("User is not registered.");
 301                         System.exit(1);
 302                     }
 303
 304                     try {
 305                         byte[] groupId = null;
 306                         if (ns.getString("group") != null) {
 307                             groupId = decodeGroupId(ns.getString("group"));
 308                         }
 309                         byte[] newGroupId = m.sendUpdateGroupMessage(groupId, ns.getString("name"), ns.<String>getList("member"), ns.getString("avatar"));
 310                         if (groupId == null) {
 311                             System.out.println("Creating new group \"" + Base64.encodeBytes(newGroupId) + "\" …");
 312                         }
 313                     } catch (IOException e) {
 314                         handleIOException(e);
 315                     } catch (AttachmentInvalidException e) {
 316                         System.err.println("Failed to add avatar attachment for group\": " + e.getMessage());
 317                         System.err.println("Aborting sending.");
 318                         System.exit(1);
 319                     } catch (GroupNotFoundException e) {
 320                         handleGroupNotFoundException(e);
 321                     } catch (EncapsulatedExceptions e) {
 322                         handleEncapsulatedExceptions(e);
 323                     } catch (UntrustedIdentityException e) {
 324                         e.printStackTrace();
 325                     }
 326
 327                     break;
 328                 case "daemon":
 329                     if (dBusConn != null) {
 330                         System.err.println("Stop it.");
 331                         System.exit(1);
 332                     }
 333                     if (!m.isRegistered()) {
 334                         System.err.println("User is not registered.");
 335                         System.exit(1);
 336                     }
 337                     DBusConnection conn = null;
 338                     try {
 339                         try {
 340                             int busType;
 341                             if (ns.getBoolean("system")) {
 342                                 busType = DBusConnection.SYSTEM;
 343                             } else {
 344                                 busType = DBusConnection.SESSION;
 345                             }
 346                             conn = DBusConnection.getConnection(busType);
 347                             conn.exportObject(SIGNAL_OBJECTPATH, m);
 348                             conn.requestBusName(SIGNAL_BUSNAME);
 349                         } catch (DBusException e) {
 350                             e.printStackTrace();
 351                             System.exit(3);
 352                         }
 353                         try {
 354                             m.receiveMessages(3600, false, new DbusReceiveMessageHandler(m, conn));
 355                         } catch (IOException e) {
 356                             System.err.println("Error while receiving messages: " + e.getMessage());
 357                             System.exit(3);
 358                         } catch (AssertionError e) {
 359                             handleAssertionError(e);
 360                         }
 361                     } finally {
 362                         if (conn != null) {
 363                             conn.disconnect();
 364                         }
 365                     }
 366
 367                     break;
 368             }
 369             System.exit(0);
 370         } finally {
 371             if (dBusConn != null) {
 372                 dBusConn.disconnect();
 373             }
 374         }
 375     }
 376
 377     private static void handleGroupNotFoundException(GroupNotFoundException e) {
 378         System.err.println("Failed to send to group: " + e.getMessage());
 379         System.err.println("Aborting sending.");
 380         System.exit(1);
 381     }
 382
 383     private static void handleDBusExecutionException(DBusExecutionException e) {
 384         System.err.println("Cannot connect to dbus: " + e.getMessage());
 385         System.err.println("Aborting.");
 386         System.exit(1);
 387     }
 388
 389     private static byte[] decodeGroupId(String groupId) {
 390         try {
 391             return Base64.decode(groupId);
 392         } catch (IOException e) {
 393             System.err.println("Failed to decode groupId (must be base64) \"" + groupId + "\": " + e.getMessage());
 394             System.err.println("Aborting sending.");
 395             System.exit(1);
 396             return null;
 397         }
 398     }
 399
 400     private static Namespace parseArgs(String[] args) {
 401         ArgumentParser parser = ArgumentParsers.newArgumentParser("signal-cli")
 402                 .defaultHelp(true)
 403                 .description("Commandline interface for Signal.")
 404                 .version(Manager.PROJECT_NAME + " " + Manager.PROJECT_VERSION);
 405
 406         parser.addArgument("-v", "--version")
 407                 .help("Show package version.")
 408                 .action(Arguments.version());
 409         parser.addArgument("--config")
 410                 .help("Set the path, where to store the config (Default: $HOME/.config/signal-cli).");
 411
 412         MutuallyExclusiveGroup mut = parser.addMutuallyExclusiveGroup();
 413         mut.addArgument("-u", "--username")
 414                 .help("Specify your phone number, that will be used for verification.");
 415         mut.addArgument("--dbus")
 416                 .help("Make request via user dbus.")
 417                 .action(Arguments.storeTrue());
 418         mut.addArgument("--dbus-system")
 419                 .help("Make request via system dbus.")
 420                 .action(Arguments.storeTrue());
 421
 422         Subparsers subparsers = parser.addSubparsers()
 423                 .title("subcommands")
 424                 .dest("command")
 425                 .description("valid subcommands")
 426                 .help("additional help");
 427
 428         Subparser parserRegister = subparsers.addParser("register");
 429         parserRegister.addArgument("-v", "--voice")
 430                 .help("The verification should be done over voice, not sms.")
 431                 .action(Arguments.storeTrue());
 432
 433         Subparser parserVerify = subparsers.addParser("verify");
 434         parserVerify.addArgument("verificationCode")
 435                 .help("The verification code you received via sms or voice call.");
 436
 437         Subparser parserSend = subparsers.addParser("send");
 438         parserSend.addArgument("-g", "--group")
 439                 .help("Specify the recipient group ID.");
 440         parserSend.addArgument("recipient")
 441                 .help("Specify the recipients' phone number.")
 442                 .nargs("*");
 443         parserSend.addArgument("-m", "--message")
 444                 .help("Specify the message, if missing standard input is used.");
 445         parserSend.addArgument("-a", "--attachment")
 446                 .nargs("*")
 447                 .help("Add file as attachment");
 448         parserSend.addArgument("-e", "--endsession")
 449                 .help("Clear session state and send end session message.")
 450                 .action(Arguments.storeTrue());
 451
 452         Subparser parserLeaveGroup = subparsers.addParser("quitGroup");
 453         parserLeaveGroup.addArgument("-g", "--group")
 454                 .required(true)
 455                 .help("Specify the recipient group ID.");
 456
 457         Subparser parserUpdateGroup = subparsers.addParser("updateGroup");
 458         parserUpdateGroup.addArgument("-g", "--group")
 459                 .help("Specify the recipient group ID.");
 460         parserUpdateGroup.addArgument("-n", "--name")
 461                 .help("Specify the new group name.");
 462         parserUpdateGroup.addArgument("-a", "--avatar")
 463                 .help("Specify a new group avatar image file");
 464         parserUpdateGroup.addArgument("-m", "--member")
 465                 .nargs("*")
 466                 .help("Specify one or more members to add to the group");
 467
 468         Subparser parserReceive = subparsers.addParser("receive");
 469         parserReceive.addArgument("-t", "--timeout")
 470                 .type(int.class)
 471                 .help("Number of seconds to wait for new messages (negative values disable timeout)");
 472
 473         Subparser parserDaemon = subparsers.addParser("daemon");
 474         parserDaemon.addArgument("--system")
 475                 .action(Arguments.storeTrue())
 476                 .help("Use DBus system bus instead of user bus.");
 477
 478         try {
 479             Namespace ns = parser.parseArgs(args);
 480             if (!ns.getBoolean("dbus") && !ns.getBoolean("dbus_system")) {
 481                 if (ns.getString("username") == null) {
 482                     parser.printUsage();
 483                     System.err.println("You need to specify a username (phone number)");
 484                     System.exit(2);
 485                 }
 486                 if (!PhoneNumberFormatter.isValidNumber(ns.getString("username"))) {
 487                     System.err.println("Invalid username (phone number), make sure you include the country code.");
 488                     System.exit(2);
 489                 }
 490             }
 491             if (ns.getList("recipient") != null && !ns.getList("recipient").isEmpty() && ns.getString("group") != null) {
 492                 System.err.println("You cannot specify recipients by phone number and groups a the same time");
 493                 System.exit(2);
 494             }
 495             return ns;
 496         } catch (ArgumentParserException e) {
 497             parser.handleError(e);
 498             return null;
 499         }
 500     }
 501
 502     private static void handleAssertionError(AssertionError e) {
 503         System.err.println("Failed to send/receive message (Assertion): " + e.getMessage());
 504         e.printStackTrace();
 505         System.err.println("If you use an Oracle JRE please check if you have unlimited strength crypto enabled, see README");
 506         System.exit(1);
 507     }
 508
 509     private static void handleEncapsulatedExceptions(EncapsulatedExceptions e) {
 510         System.err.println("Failed to send (some) messages:");
 511         for (NetworkFailureException n : e.getNetworkExceptions()) {
 512             System.err.println("Network failure for \"" + n.getE164number() + "\": " + n.getMessage());
 513         }
 514         for (UnregisteredUserException n : e.getUnregisteredUserExceptions()) {
 515             System.err.println("Unregistered user \"" + n.getE164Number() + "\": " + n.getMessage());
 516         }
 517         for (UntrustedIdentityException n : e.getUntrustedIdentityExceptions()) {
 518             System.err.println("Untrusted Identity for \"" + n.getE164Number() + "\": " + n.getMessage());
 519         }
 520     }
 521
 522     private static void handleIOException(IOException e) {
 523         System.err.println("Failed to send message: " + e.getMessage());
 524     }
 525
 526     private static class ReceiveMessageHandler implements Manager.ReceiveMessageHandler {
 527         final Manager m;
 528
 529         public ReceiveMessageHandler(Manager m) {
 530             this.m = m;
 531         }
 532
 533         @Override
 534         public void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, GroupInfo group) {
 535             SignalServiceAddress source = envelope.getSourceAddress();
 536             System.out.println(String.format("Envelope from: %s (device: %d)", source.getNumber(), envelope.getSourceDevice()));
 537             if (source.getRelay().isPresent()) {
 538                 System.out.println("Relayed by: " + source.getRelay().get());
 539             }
 540             System.out.println("Timestamp: " + envelope.getTimestamp());
 541
 542             if (envelope.isReceipt()) {
 543                 System.out.println("Got receipt.");
 544             } else if (envelope.isSignalMessage() | envelope.isPreKeySignalMessage()) {
 545                 if (content == null) {
 546                     System.out.println("Failed to decrypt message.");
 547                 } else {
 548                     if (content.getDataMessage().isPresent()) {
 549                         SignalServiceDataMessage message = content.getDataMessage().get();
 550                         handleSignalServiceDataMessage(message, group);
 551                     }
 552                     if (content.getSyncMessage().isPresent()) {
 553                         SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
 554
 555                         if (syncMessage.getContacts().isPresent()) {
 556                             System.out.println("Received sync contacts");
 557                             printAttachment(syncMessage.getContacts().get());
 558                         }
 559                         if (syncMessage.getGroups().isPresent()) {
 560                             System.out.println("Received sync groups");
 561                             printAttachment(syncMessage.getGroups().get());
 562                         }
 563                         if (syncMessage.getRead().isPresent()) {
 564                             System.out.println("Received sync read messages list");
 565                             for (ReadMessage rm : syncMessage.getRead().get()) {
 566                                 System.out.println("From: " + rm.getSender() + " Message timestamp: " + rm.getTimestamp());
 567                             }
 568                         }
 569                         if (syncMessage.getRequest().isPresent()) {
 570                             System.out.println("Received sync request");
 571                             if (syncMessage.getRequest().get().isContactsRequest()) {
 572                                 System.out.println(" - contacts request");
 573                             }
 574                             if (syncMessage.getRequest().get().isGroupsRequest()) {
 575                                 System.out.println(" - groups request");
 576                             }
 577                         }
 578                         if (syncMessage.getSent().isPresent()) {
 579                             System.out.println("Received sync sent message");
 580                             final SentTranscriptMessage sentTranscriptMessage = syncMessage.getSent().get();
 581                             System.out.println("To: " + (sentTranscriptMessage.getDestination().isPresent() ? sentTranscriptMessage.getDestination().get() : "Unknown") + " , Message timestamp: " + sentTranscriptMessage.getTimestamp());
 582                             SignalServiceDataMessage message = sentTranscriptMessage.getMessage();
 583                             handleSignalServiceDataMessage(message, null);
 584                         }
 585                     }
 586                 }
 587             } else {
 588                 System.out.println("Unknown message received.");
 589             }
 590             System.out.println();
 591         }
 592
 593         // TODO remove group parameter
 594         private void handleSignalServiceDataMessage(SignalServiceDataMessage message, GroupInfo group) {
 595             System.out.println("Message timestamp: " + message.getTimestamp());
 596
 597             if (message.getBody().isPresent()) {
 598                 System.out.println("Body: " + message.getBody().get());
 599             }
 600             if (message.getGroupInfo().isPresent()) {
 601                 SignalServiceGroup groupInfo = message.getGroupInfo().get();
 602                 System.out.println("Group info:");
 603                 System.out.println("  Id: " + Base64.encodeBytes(groupInfo.getGroupId()));
 604                 if (groupInfo.getName().isPresent()) {
 605                     System.out.println("  Name: " + groupInfo.getName().get());
 606                 } else if (group != null) {
 607                     System.out.println("  Name: " + group.name);
 608                 } else {
 609                     System.out.println("  Name: <Unknown group>");
 610                 }
 611                 System.out.println("  Type: " + groupInfo.getType());
 612                 if (groupInfo.getMembers().isPresent()) {
 613                     for (String member : groupInfo.getMembers().get()) {
 614                         System.out.println("  Member: " + member);
 615                     }
 616                 }
 617                 if (groupInfo.getAvatar().isPresent()) {
 618                     System.out.println("  Avatar:");
 619                     printAttachment(groupInfo.getAvatar().get());
 620                 }
 621             }
 622             if (message.isEndSession()) {
 623                 System.out.println("Is end session");
 624             }
 625
 626             if (message.getAttachments().isPresent()) {
 627                 System.out.println("Attachments: ");
 628                 for (SignalServiceAttachment attachment : message.getAttachments().get()) {
 629                     printAttachment(attachment);
 630                 }
 631             }
 632         }
 633
 634         private void printAttachment(SignalServiceAttachment attachment) {
 635             System.out.println("- " + attachment.getContentType() + " (" + (attachment.isPointer() ? "Pointer" : "") + (attachment.isStream() ? "Stream" : "") + ")");
 636             if (attachment.isPointer()) {
 637                 final SignalServiceAttachmentPointer pointer = attachment.asPointer();
 638                 System.out.println("  Id: " + pointer.getId() + " Key length: " + pointer.getKey().length + (pointer.getRelay().isPresent() ? " Relay: " + pointer.getRelay().get() : ""));
 639                 System.out.println("  Size: " + (pointer.getSize().isPresent() ? pointer.getSize().get() + " bytes" : "<unavailable>") + (pointer.getPreview().isPresent() ? " (Preview is available: " + pointer.getPreview().get().length + " bytes)" : ""));
 640                 File file = m.getAttachmentFile(pointer.getId());
 641                 if (file.exists()) {
 642                     System.out.println("  Stored plaintext in: " + file);
 643                 }
 644             }
 645         }
 646     }
 647
 648     private static class DbusReceiveMessageHandler extends ReceiveMessageHandler {
 649         final DBusConnection conn;
 650
 651         public DbusReceiveMessageHandler(Manager m, DBusConnection conn) {
 652             super(m);
 653             this.conn = conn;
 654         }
 655
 656         @Override
 657         public void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, GroupInfo group) {
 658             super.handleMessage(envelope, content, group);
 659
 660             if (!envelope.isReceipt() && content != null && content.getDataMessage().isPresent()) {
 661                 SignalServiceDataMessage message = content.getDataMessage().get();
 662
 663                 if (!message.isEndSession() &&
 664                         !(message.getGroupInfo().isPresent() &&
 665                                 message.getGroupInfo().get().getType() != SignalServiceGroup.Type.DELIVER)) {
 666                     List<String> attachments = new ArrayList<>();
 667                     if (message.getAttachments().isPresent()) {
 668                         for (SignalServiceAttachment attachment : message.getAttachments().get()) {
 669                             if (attachment.isPointer()) {
 670                                 attachments.add(m.getAttachmentFile(attachment.asPointer().getId()).getAbsolutePath());
 671                             }
 672                         }
 673                     }
 674
 675                     try {
 676                         conn.sendSignal(new Signal.MessageReceived(
 677                                 SIGNAL_OBJECTPATH,
 678                                 message.getTimestamp(),
 679                                 envelope.getSource(),
 680                                 message.getGroupInfo().isPresent() ? message.getGroupInfo().get().getGroupId() : new byte[0],
 681                                 message.getBody().isPresent() ? message.getBody().get() : "",
 682                                 attachments));
 683                     } catch (DBusException e) {
 684                         e.printStackTrace();
 685                     }
 686                 }
 687             }
 688         }
 689
 690         private void printAttachment(SignalServiceAttachment attachment) {
 691             System.out.println("- " + attachment.getContentType() + " (" + (attachment.isPointer() ? "Pointer" : "") + (attachment.isStream() ? "Stream" : "") + ")");
 692             if (attachment.isPointer()) {
 693                 final SignalServiceAttachmentPointer pointer = attachment.asPointer();
 694                 System.out.println("  Id: " + pointer.getId() + " Key length: " + pointer.getKey().length + (pointer.getRelay().isPresent() ? " Relay: " + pointer.getRelay().get() : ""));
 695                 System.out.println("  Size: " + (pointer.getSize().isPresent() ? pointer.getSize().get() + " bytes" : "<unavailable>") + (pointer.getPreview().isPresent() ? " (Preview is available: " + pointer.getPreview().get().length + " bytes)" : ""));
 696                 File file = m.getAttachmentFile(pointer.getId());
 697                 if (file.exists()) {
 698                     System.out.println("  Stored plaintext in: " + file);
 699                 }
 700             }
 701         }
 702     }
 703 }