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