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