Reformat

[signal-cli] / src / main / java / org / asamk / signal / Main.java

diff --git a/src/main/java/org/asamk/signal/Main.java b/src/main/java/org/asamk/signal/Main.java
index a6d36d0f248e7880478dfe3c32baf43d30945ed6..f9084516787b80314c52e66dabb6779029b5bd55 100644 (file)
--- a/src/main/java/org/asamk/signal/Main.java
+++ b/src/main/java/org/asamk/signal/Main.java
@@ -19,9 +19,13 @@ package org.asamk.signal;
 import net.sourceforge.argparse4j.ArgumentParsers;
 import net.sourceforge.argparse4j.impl.Arguments;
 import net.sourceforge.argparse4j.inf.*;
 import net.sourceforge.argparse4j.ArgumentParsers;
 import net.sourceforge.argparse4j.impl.Arguments;
 import net.sourceforge.argparse4j.inf.*;

-import org.apache.commons.io.IOUtils;

 import org.apache.http.util.TextUtils;
 import org.asamk.Signal;
 import org.apache.http.util.TextUtils;
 import org.asamk.Signal;

+import org.asamk.signal.storage.contacts.ContactInfo;
+import org.asamk.signal.storage.groups.GroupInfo;
+import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;
+import org.asamk.signal.util.Base64;
+import org.asamk.signal.util.Hex;

 import org.freedesktop.dbus.DBusConnection;
 import org.freedesktop.dbus.DBusSigHandler;
 import org.freedesktop.dbus.exceptions.DBusException;
 import org.freedesktop.dbus.DBusConnection;
 import org.freedesktop.dbus.DBusSigHandler;
 import org.freedesktop.dbus.exceptions.DBusException;


@@ -29,10 +33,7 @@ import org.freedesktop.dbus.exceptions.DBusExecutionException;
 import org.whispersystems.libsignal.InvalidKeyException;
 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
 import org.whispersystems.signalservice.api.messages.*;
 import org.whispersystems.libsignal.InvalidKeyException;
 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
 import org.whispersystems.signalservice.api.messages.*;

-import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
-import org.whispersystems.signalservice.api.messages.multidevice.ReadMessage;
-import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
-import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
+import org.whispersystems.signalservice.api.messages.multidevice.*;

 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;


@@ -41,11 +42,16 @@ import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 
 import java.io.File;
 import java.io.IOException;
 
 import java.io.File;
 import java.io.IOException;

+import java.io.InputStream;
+import java.io.StringWriter;

 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URI;
 import java.net.URISyntaxException;

+import java.nio.charset.Charset;

 import java.security.Security;
 import java.security.Security;

-import java.util.ArrayList;
-import java.util.List;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.*;
+import java.util.concurrent.TimeUnit;

 import java.util.concurrent.TimeoutException;
 
 public class Main {
 import java.util.concurrent.TimeoutException;
 
 public class Main {


@@ -53,6 +59,8 @@ public class Main {
     public static final String SIGNAL_BUSNAME = "org.asamk.Signal";
     public static final String SIGNAL_OBJECTPATH = "/org/asamk/Signal";
 
     public static final String SIGNAL_BUSNAME = "org.asamk.Signal";
     public static final String SIGNAL_OBJECTPATH = "/org/asamk/Signal";
 

+    private static final TimeZone tzUTC = TimeZone.getTimeZone("UTC");
+

     public static void main(String[] args) {
         // Workaround for BKS truststore
         Security.insertProviderAt(new org.bouncycastle.jce.provider.BouncyCastleProvider(), 1);
     public static void main(String[] args) {
         // Workaround for BKS truststore
         Security.insertProviderAt(new org.bouncycastle.jce.provider.BouncyCastleProvider(), 1);


@@ -62,6 +70,11 @@ public class Main {
             System.exit(1);
         }
 
             System.exit(1);
         }
 

+        int res = handleCommands(ns);
+        System.exit(res);
+    }
+
+    private static int handleCommands(Namespace ns) {

         final String username = ns.getString("username");
         Manager m;
         Signal ts;
         final String username = ns.getString("username");
         Manager m;
         Signal ts;


@@ -80,13 +93,15 @@ public class Main {
                     ts = (Signal) dBusConn.getRemoteObject(
                             SIGNAL_BUSNAME, SIGNAL_OBJECTPATH,
                             Signal.class);
                     ts = (Signal) dBusConn.getRemoteObject(
                             SIGNAL_BUSNAME, SIGNAL_OBJECTPATH,
                             Signal.class);

+                } catch (UnsatisfiedLinkError e) {
+                    System.err.println("Missing native library dependency for dbus service: " + e.getMessage());
+                    return 1;

                 } catch (DBusException e) {
                     e.printStackTrace();
                     if (dBusConn != null) {
                         dBusConn.disconnect();
                     }
                 } catch (DBusException e) {
                     e.printStackTrace();
                     if (dBusConn != null) {
                         dBusConn.disconnect();
                     }

-                    System.exit(3);
-                    return;
+                    return 3;

                 }
             } else {
                 String settingsPath = ns.getString("config");
                 }
             } else {
                 String settingsPath = ns.getString("config");


@@ -104,11 +119,10 @@ public class Main {
                 ts = m;
                 if (m.userExists()) {
                     try {
                 ts = m;
                 if (m.userExists()) {
                     try {

-                        m.load();
+                        m.init();

                     } catch (Exception e) {
                         System.err.println("Error loading state file \"" + m.getFileName() + "\": " + e.getMessage());
                     } catch (Exception e) {
                         System.err.println("Error loading state file \"" + m.getFileName() + "\": " + e.getMessage());

-                        System.exit(2);
-                        return;
+                        return 2;

                     }
                 }
             }
                     }
                 }
             }


@@ -117,7 +131,7 @@ public class Main {
                 case "register":
                     if (dBusConn != null) {
                         System.err.println("register is not yet implemented via dbus");
                 case "register":
                     if (dBusConn != null) {
                         System.err.println("register is not yet implemented via dbus");

-                        System.exit(1);
+                        return 1;

                     }
                     if (!m.userHasKeys()) {
                         m.createNewIdentity();
                     }
                     if (!m.userHasKeys()) {
                         m.createNewIdentity();


@@ -126,33 +140,65 @@ public class Main {
                         m.register(ns.getBoolean("voice"));
                     } catch (IOException e) {
                         System.err.println("Request verify error: " + e.getMessage());
                         m.register(ns.getBoolean("voice"));
                     } catch (IOException e) {
                         System.err.println("Request verify error: " + e.getMessage());

-                        System.exit(3);
+                        return 3;
+                    }
+                    break;
+                case "unregister":
+                    if (dBusConn != null) {
+                        System.err.println("unregister is not yet implemented via dbus");
+                        return 1;
+                    }
+                    if (!m.isRegistered()) {
+                        System.err.println("User is not registered.");
+                        return 1;
+                    }
+                    try {
+                        m.unregister();
+                    } catch (IOException e) {
+                        System.err.println("Unregister error: " + e.getMessage());
+                        return 3;
+                    }
+                    break;
+                case "updateAccount":
+                    if (dBusConn != null) {
+                        System.err.println("updateAccount is not yet implemented via dbus");
+                        return 1;
+                    }
+                    if (!m.isRegistered()) {
+                        System.err.println("User is not registered.");
+                        return 1;
+                    }
+                    try {
+                        m.updateAccountAttributes();
+                    } catch (IOException e) {
+                        System.err.println("UpdateAccount error: " + e.getMessage());
+                        return 3;

                     }
                     break;
                 case "verify":
                     if (dBusConn != null) {
                         System.err.println("verify is not yet implemented via dbus");
                     }
                     break;
                 case "verify":
                     if (dBusConn != null) {
                         System.err.println("verify is not yet implemented via dbus");

-                        System.exit(1);
+                        return 1;

                     }
                     if (!m.userHasKeys()) {
                         System.err.println("User has no keys, first call register.");
                     }
                     if (!m.userHasKeys()) {
                         System.err.println("User has no keys, first call register.");

-                        System.exit(1);
+                        return 1;

                     }
                     if (m.isRegistered()) {
                         System.err.println("User registration is already verified");
                     }
                     if (m.isRegistered()) {
                         System.err.println("User registration is already verified");

-                        System.exit(1);
+                        return 1;

                     }
                     try {
                         m.verifyAccount(ns.getString("verificationCode"));
                     } catch (IOException e) {
                         System.err.println("Verify error: " + e.getMessage());
                     }
                     try {
                         m.verifyAccount(ns.getString("verificationCode"));
                     } catch (IOException e) {
                         System.err.println("Verify error: " + e.getMessage());

-                        System.exit(3);
+                        return 3;

                     }
                     break;
                 case "link":
                     if (dBusConn != null) {
                         System.err.println("link is not yet implemented via dbus");
                     }
                     break;
                 case "link":
                     if (dBusConn != null) {
                         System.err.println("link is not yet implemented via dbus");

-                        System.exit(1);
+                        return 1;

                     }
 
                     // When linking, username is null and we always have to create keys
                     }
 
                     // When linking, username is null and we always have to create keys


@@ -168,96 +214,121 @@ public class Main {
                         System.out.println("Associated with: " + m.getUsername());
                     } catch (TimeoutException e) {
                         System.err.println("Link request timed out, please try again.");
                         System.out.println("Associated with: " + m.getUsername());
                     } catch (TimeoutException e) {
                         System.err.println("Link request timed out, please try again.");

-                        System.exit(3);
+                        return 3;

                     } catch (IOException e) {
                         System.err.println("Link request error: " + e.getMessage());
                     } catch (IOException e) {
                         System.err.println("Link request error: " + e.getMessage());

-                        System.exit(3);
+                        return 3;
+                    } catch (AssertionError e) {
+                        handleAssertionError(e);
+                        return 1;

                     } catch (InvalidKeyException e) {
                         e.printStackTrace();
                     } catch (InvalidKeyException e) {
                         e.printStackTrace();

-                        System.exit(3);
+                        return 2;

                     } catch (UserAlreadyExists e) {
                         System.err.println("The user " + e.getUsername() + " already exists\nDelete \"" + e.getFileName() + "\" before trying again.");
                     } catch (UserAlreadyExists e) {
                         System.err.println("The user " + e.getUsername() + " already exists\nDelete \"" + e.getFileName() + "\" before trying again.");

-                        System.exit(3);
+                        return 1;

                     }
                     break;
                 case "addDevice":
                     if (dBusConn != null) {
                         System.err.println("link is not yet implemented via dbus");
                     }
                     break;
                 case "addDevice":
                     if (dBusConn != null) {
                         System.err.println("link is not yet implemented via dbus");

-                        System.exit(1);
+                        return 1;

                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");
                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");

-                        System.exit(1);
+                        return 1;

                     }
                     try {
                         m.addDeviceLink(new URI(ns.getString("uri")));
                     } catch (IOException e) {
                         e.printStackTrace();
                     }
                     try {
                         m.addDeviceLink(new URI(ns.getString("uri")));
                     } catch (IOException e) {
                         e.printStackTrace();

-                        System.exit(3);
+                        return 3;

                     } catch (InvalidKeyException e) {
                         e.printStackTrace();
                     } catch (InvalidKeyException e) {
                         e.printStackTrace();

-                        System.exit(2);
+                        return 2;
+                    } catch (AssertionError e) {
+                        handleAssertionError(e);
+                        return 1;

                     } catch (URISyntaxException e) {
                         e.printStackTrace();
                     } catch (URISyntaxException e) {
                         e.printStackTrace();

-                        System.exit(2);
+                        return 2;

                     }
                     break;
                 case "listDevices":
                     if (dBusConn != null) {
                         System.err.println("listDevices is not yet implemented via dbus");
                     }
                     break;
                 case "listDevices":
                     if (dBusConn != null) {
                         System.err.println("listDevices is not yet implemented via dbus");

-                        System.exit(1);
+                        return 1;

                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");
                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");

-                        System.exit(1);
+                        return 1;

                     }
                     try {
                         List<DeviceInfo> devices = m.getLinkedDevices();
                         for (DeviceInfo d : devices) {
                             System.out.println("Device " + d.getId() + (d.getId() == m.getDeviceId() ? " (this device)" : "") + ":");
                             System.out.println(" Name: " + d.getName());
                     }
                     try {
                         List<DeviceInfo> devices = m.getLinkedDevices();
                         for (DeviceInfo d : devices) {
                             System.out.println("Device " + d.getId() + (d.getId() == m.getDeviceId() ? " (this device)" : "") + ":");
                             System.out.println(" Name: " + d.getName());

-                            System.out.println(" Created: " + d.getCreated());
-                            System.out.println(" Last seen: " + d.getLastSeen());
+                            System.out.println(" Created: " + formatTimestamp(d.getCreated()));
+                            System.out.println(" Last seen: " + formatTimestamp(d.getLastSeen()));

                         }
                     } catch (IOException e) {
                         e.printStackTrace();
                         }
                     } catch (IOException e) {
                         e.printStackTrace();

-                        System.exit(3);
+                        return 3;
+                    }
+                    break;
+                case "removeDevice":
+                    if (dBusConn != null) {
+                        System.err.println("removeDevice is not yet implemented via dbus");
+                        return 1;
+                    }
+                    if (!m.isRegistered()) {
+                        System.err.println("User is not registered.");
+                        return 1;
+                    }
+                    try {
+                        int deviceId = ns.getInt("deviceId");
+                        m.removeLinkedDevices(deviceId);
+                    } catch (IOException e) {
+                        e.printStackTrace();
+                        return 3;

                     }
                     break;
                 case "send":
                     if (dBusConn == null && !m.isRegistered()) {
                         System.err.println("User is not registered.");
                     }
                     break;
                 case "send":
                     if (dBusConn == null && !m.isRegistered()) {
                         System.err.println("User is not registered.");

-                        System.exit(1);
+                        return 1;

                     }
 
                     if (ns.getBoolean("endsession")) {
                         if (ns.getList("recipient") == null) {
                             System.err.println("No recipients given");
                             System.err.println("Aborting sending.");
                     }
 
                     if (ns.getBoolean("endsession")) {
                         if (ns.getList("recipient") == null) {
                             System.err.println("No recipients given");
                             System.err.println("Aborting sending.");

-                            System.exit(1);
+                            return 1;

                         }
                         try {
                             ts.sendEndSessionMessage(ns.<String>getList("recipient"));
                         } catch (IOException e) {
                             handleIOException(e);
                         }
                         try {
                             ts.sendEndSessionMessage(ns.<String>getList("recipient"));
                         } catch (IOException e) {
                             handleIOException(e);

+                            return 3;

                         } catch (EncapsulatedExceptions e) {
                             handleEncapsulatedExceptions(e);
                         } catch (EncapsulatedExceptions e) {
                             handleEncapsulatedExceptions(e);

+                            return 3;

                         } catch (AssertionError e) {
                             handleAssertionError(e);
                         } catch (AssertionError e) {
                             handleAssertionError(e);

+                            return 1;

                         } catch (DBusExecutionException e) {
                             handleDBusExecutionException(e);
                         } catch (DBusExecutionException e) {
                             handleDBusExecutionException(e);

-                        } catch (UntrustedIdentityException e) {
-                            e.printStackTrace();
+                            return 1;

                         }
                     } else {
                         String messageText = ns.getString("message");
                         if (messageText == null) {
                             try {
                         }
                     } else {
                         String messageText = ns.getString("message");
                         if (messageText == null) {
                             try {

-                                messageText = IOUtils.toString(System.in);
+                                messageText = readAll(System.in);

                             } catch (IOException e) {
                                 System.err.println("Failed to read message from stdin: " + e.getMessage());
                                 System.err.println("Aborting sending.");
                             } catch (IOException e) {
                                 System.err.println("Failed to read message from stdin: " + e.getMessage());
                                 System.err.println("Aborting sending.");

-                                System.exit(1);
+                                return 1;

                             }
                         }
 
                             }
                         }
 


@@ -274,20 +345,26 @@ public class Main {
                             }
                         } catch (IOException e) {
                             handleIOException(e);
                             }
                         } catch (IOException e) {
                             handleIOException(e);

+                            return 3;

                         } catch (EncapsulatedExceptions e) {
                             handleEncapsulatedExceptions(e);
                         } catch (EncapsulatedExceptions e) {
                             handleEncapsulatedExceptions(e);

+                            return 3;

                         } catch (AssertionError e) {
                             handleAssertionError(e);
                         } catch (AssertionError e) {
                             handleAssertionError(e);

+                            return 1;

                         } catch (GroupNotFoundException e) {
                             handleGroupNotFoundException(e);
                         } catch (GroupNotFoundException e) {
                             handleGroupNotFoundException(e);

+                            return 1;
+                        } catch (NotAGroupMemberException e) {
+                            handleNotAGroupMemberException(e);
+                            return 1;

                         } catch (AttachmentInvalidException e) {
                             System.err.println("Failed to add attachment: " + e.getMessage());
                             System.err.println("Aborting sending.");
                         } catch (AttachmentInvalidException e) {
                             System.err.println("Failed to add attachment: " + e.getMessage());
                             System.err.println("Aborting sending.");

-                            System.exit(1);
+                            return 1;

                         } catch (DBusExecutionException e) {
                             handleDBusExecutionException(e);
                         } catch (DBusExecutionException e) {
                             handleDBusExecutionException(e);

-                        } catch (UntrustedIdentityException e) {
-                            e.printStackTrace();
+                            return 1;

                         }
                     }
 
                         }
                     }
 


@@ -298,8 +375,8 @@ public class Main {
                             dBusConn.addSigHandler(Signal.MessageReceived.class, new DBusSigHandler<Signal.MessageReceived>() {
                                 @Override
                                 public void handle(Signal.MessageReceived s) {
                             dBusConn.addSigHandler(Signal.MessageReceived.class, new DBusSigHandler<Signal.MessageReceived>() {
                                 @Override
                                 public void handle(Signal.MessageReceived s) {

-                                    System.out.print(String.format("Envelope from: %s\nTimestamp: %d\nBody: %s\n",
-                                            s.getSender(), s.getTimestamp(), s.getMessage()));
+                                    System.out.print(String.format("Envelope from: %s\nTimestamp: %s\nBody: %s\n",
+                                            s.getSender(), formatTimestamp(s.getTimestamp()), s.getMessage()));

                                     if (s.getGroupId().length > 0) {
                                         System.out.println("Group info:");
                                         System.out.println("  Id: " + Base64.encodeBytes(s.getGroupId()));
                                     if (s.getGroupId().length > 0) {
                                         System.out.println("Group info:");
                                         System.out.println("  Id: " + Base64.encodeBytes(s.getGroupId()));


@@ -313,72 +390,83 @@ public class Main {
                                     System.out.println();
                                 }
                             });
                                     System.out.println();
                                 }
                             });

+                        } catch (UnsatisfiedLinkError e) {
+                            System.err.println("Missing native library dependency for dbus service: " + e.getMessage());
+                            return 1;

                         } catch (DBusException e) {
                             e.printStackTrace();
                         } catch (DBusException e) {
                             e.printStackTrace();

+                            return 1;

                         }
                         while (true) {
                             try {
                                 Thread.sleep(10000);
                             } catch (InterruptedException e) {
                         }
                         while (true) {
                             try {
                                 Thread.sleep(10000);
                             } catch (InterruptedException e) {

-                                System.exit(0);
+                                return 0;

                             }
                         }
                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");
                             }
                         }
                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");

-                        System.exit(1);
+                        return 1;

                     }
                     }

-                    int timeout = 5;
-                    if (ns.getInt("timeout") != null) {
-                        timeout = ns.getInt("timeout");
+                    double timeout = 5;
+                    if (ns.getDouble("timeout") != null) {
+                        timeout = ns.getDouble("timeout");

                     }
                     boolean returnOnTimeout = true;
                     if (timeout < 0) {
                         returnOnTimeout = false;
                         timeout = 3600;
                     }
                     }
                     boolean returnOnTimeout = true;
                     if (timeout < 0) {
                         returnOnTimeout = false;
                         timeout = 3600;
                     }

+                    boolean ignoreAttachments = ns.getBoolean("ignore_attachments");

                     try {
                     try {

-                        m.receiveMessages(timeout, returnOnTimeout, new ReceiveMessageHandler(m));
+                        m.receiveMessages((long) (timeout * 1000), TimeUnit.MILLISECONDS, returnOnTimeout, ignoreAttachments, new ReceiveMessageHandler(m));

                     } catch (IOException e) {
                         System.err.println("Error while receiving messages: " + e.getMessage());
                     } catch (IOException e) {
                         System.err.println("Error while receiving messages: " + e.getMessage());

-                        System.exit(3);
+                        return 3;

                     } catch (AssertionError e) {
                         handleAssertionError(e);
                     } catch (AssertionError e) {
                         handleAssertionError(e);

+                        return 1;

                     }
                     break;
                 case "quitGroup":
                     if (dBusConn != null) {
                         System.err.println("quitGroup is not yet implemented via dbus");
                     }
                     break;
                 case "quitGroup":
                     if (dBusConn != null) {
                         System.err.println("quitGroup is not yet implemented via dbus");

-                        System.exit(1);
+                        return 1;

                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");
                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");

-                        System.exit(1);
+                        return 1;

                     }
 
                     try {
                         m.sendQuitGroupMessage(decodeGroupId(ns.getString("group")));
                     } catch (IOException e) {
                         handleIOException(e);
                     }
 
                     try {
                         m.sendQuitGroupMessage(decodeGroupId(ns.getString("group")));
                     } catch (IOException e) {
                         handleIOException(e);

+                        return 3;

                     } catch (EncapsulatedExceptions e) {
                         handleEncapsulatedExceptions(e);
                     } catch (EncapsulatedExceptions e) {
                         handleEncapsulatedExceptions(e);

+                        return 3;

                     } catch (AssertionError e) {
                         handleAssertionError(e);
                     } catch (AssertionError e) {
                         handleAssertionError(e);

+                        return 1;

                     } catch (GroupNotFoundException e) {
                         handleGroupNotFoundException(e);
                     } catch (GroupNotFoundException e) {
                         handleGroupNotFoundException(e);

-                    } catch (UntrustedIdentityException e) {
-                        e.printStackTrace();
+                        return 1;
+                    } catch (NotAGroupMemberException e) {
+                        handleNotAGroupMemberException(e);
+                        return 1;

                     }
 
                     break;
                 case "updateGroup":
                     if (dBusConn != null) {
                         System.err.println("updateGroup is not yet implemented via dbus");
                     }
 
                     break;
                 case "updateGroup":
                     if (dBusConn != null) {
                         System.err.println("updateGroup is not yet implemented via dbus");

-                        System.exit(1);
+                        return 1;

                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");
                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");

-                        System.exit(1);
+                        return 1;

                     }
 
                     try {
                     }
 
                     try {


@@ -392,27 +480,119 @@ public class Main {
                         }
                     } catch (IOException e) {
                         handleIOException(e);
                         }
                     } catch (IOException e) {
                         handleIOException(e);

+                        return 3;

                     } catch (AttachmentInvalidException e) {
                         System.err.println("Failed to add avatar attachment for group\": " + e.getMessage());
                         System.err.println("Aborting sending.");
                     } catch (AttachmentInvalidException e) {
                         System.err.println("Failed to add avatar attachment for group\": " + e.getMessage());
                         System.err.println("Aborting sending.");

-                        System.exit(1);
+                        return 1;

                     } catch (GroupNotFoundException e) {
                         handleGroupNotFoundException(e);
                     } catch (GroupNotFoundException e) {
                         handleGroupNotFoundException(e);

+                        return 1;
+                    } catch (NotAGroupMemberException e) {
+                        handleNotAGroupMemberException(e);
+                        return 1;

                     } catch (EncapsulatedExceptions e) {
                         handleEncapsulatedExceptions(e);
                     } catch (EncapsulatedExceptions e) {
                         handleEncapsulatedExceptions(e);

-                    } catch (UntrustedIdentityException e) {
-                        e.printStackTrace();
+                        return 3;
+                    }
+
+                    break;
+                case "listGroups":
+                    if (dBusConn != null) {
+                        System.err.println("listGroups is not yet implemented via dbus");
+                        return 1;
+                    }
+                    if (!m.isRegistered()) {
+                        System.err.println("User is not registered.");
+                        return 1;

                     }
 
                     }
 

+                    List<GroupInfo> groups = m.getGroups();
+                    boolean detailed = ns.getBoolean("detailed");
+
+                    for (GroupInfo group : groups) {
+                        printGroup(group, detailed);
+                    }
+                    break;
+                case "listIdentities":
+                    if (dBusConn != null) {
+                        System.err.println("listIdentities is not yet implemented via dbus");
+                        return 1;
+                    }
+                    if (!m.isRegistered()) {
+                        System.err.println("User is not registered.");
+                        return 1;
+                    }
+                    if (ns.get("number") == null) {
+                        for (Map.Entry<String, List<JsonIdentityKeyStore.Identity>> keys : m.getIdentities().entrySet()) {
+                            for (JsonIdentityKeyStore.Identity id : keys.getValue()) {
+                                printIdentityFingerprint(m, keys.getKey(), id);
+                            }
+                        }
+                    } else {
+                        String number = ns.getString("number");
+                        for (JsonIdentityKeyStore.Identity id : m.getIdentities(number)) {
+                            printIdentityFingerprint(m, number, id);
+                        }
+                    }
+                    break;
+                case "trust":
+                    if (dBusConn != null) {
+                        System.err.println("trust is not yet implemented via dbus");
+                        return 1;
+                    }
+                    if (!m.isRegistered()) {
+                        System.err.println("User is not registered.");
+                        return 1;
+                    }
+                    String number = ns.getString("number");
+                    if (ns.getBoolean("trust_all_known_keys")) {
+                        boolean res = m.trustIdentityAllKeys(number);
+                        if (!res) {
+                            System.err.println("Failed to set the trust for this number, make sure the number is correct.");
+                            return 1;
+                        }
+                    } else {
+                        String fingerprint = ns.getString("verified_fingerprint");
+                        if (fingerprint != null) {
+                            fingerprint = fingerprint.replaceAll(" ", "");
+                            if (fingerprint.length() == 66) {
+                                byte[] fingerprintBytes;
+                                try {
+                                    fingerprintBytes = Hex.toByteArray(fingerprint.toLowerCase(Locale.ROOT));
+                                } catch (Exception e) {
+                                    System.err.println("Failed to parse the fingerprint, make sure the fingerprint is a correctly encoded hex string without additional characters.");
+                                    return 1;
+                                }
+                                boolean res = m.trustIdentityVerified(number, fingerprintBytes);
+                                if (!res) {
+                                    System.err.println("Failed to set the trust for the fingerprint of this number, make sure the number and the fingerprint are correct.");
+                                    return 1;
+                                }
+                            } else if (fingerprint.length() == 60) {
+                                boolean res = m.trustIdentityVerifiedSafetyNumber(number, fingerprint);
+                                if (!res) {
+                                    System.err.println("Failed to set the trust for the safety number of this phone number, make sure the phone number and the safety number are correct.");
+                                    return 1;
+                                }
+                            } else {
+                                System.err.println("Fingerprint has invalid format, either specify the old hex fingerprint or the new safety number");
+                                return 1;
+                            }
+                        } else {
+                            System.err.println("You need to specify the fingerprint you have verified with -v FINGERPRINT");
+                            return 1;
+                        }
+                    }

                     break;
                 case "daemon":
                     if (dBusConn != null) {
                         System.err.println("Stop it.");
                     break;
                 case "daemon":
                     if (dBusConn != null) {
                         System.err.println("Stop it.");

-                        System.exit(1);
+                        return 1;

                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");
                     }
                     if (!m.isRegistered()) {
                         System.err.println("User is not registered.");

-                        System.exit(1);
+                        return 1;

                     }
                     DBusConnection conn = null;
                     try {
                     }
                     DBusConnection conn = null;
                     try {


@@ -426,17 +606,22 @@ public class Main {
                             conn = DBusConnection.getConnection(busType);
                             conn.exportObject(SIGNAL_OBJECTPATH, m);
                             conn.requestBusName(SIGNAL_BUSNAME);
                             conn = DBusConnection.getConnection(busType);
                             conn.exportObject(SIGNAL_OBJECTPATH, m);
                             conn.requestBusName(SIGNAL_BUSNAME);

+                        } catch (UnsatisfiedLinkError e) {
+                            System.err.println("Missing native library dependency for dbus service: " + e.getMessage());
+                            return 1;

                         } catch (DBusException e) {
                             e.printStackTrace();
                         } catch (DBusException e) {
                             e.printStackTrace();

-                            System.exit(3);
+                            return 2;

                         }
                         }

+                        ignoreAttachments = ns.getBoolean("ignore_attachments");

                         try {
                         try {

-                            m.receiveMessages(3600, false, new DbusReceiveMessageHandler(m, conn));
+                            m.receiveMessages(1, TimeUnit.HOURS, false, ignoreAttachments, new DbusReceiveMessageHandler(m, conn));

                         } catch (IOException e) {
                             System.err.println("Error while receiving messages: " + e.getMessage());
                         } catch (IOException e) {
                             System.err.println("Error while receiving messages: " + e.getMessage());

-                            System.exit(3);
+                            return 3;

                         } catch (AssertionError e) {
                             handleAssertionError(e);
                         } catch (AssertionError e) {
                             handleAssertionError(e);

+                            return 1;

                         }
                     } finally {
                         if (conn != null) {
                         }
                     } finally {
                         if (conn != null) {


@@ -446,7 +631,7 @@ public class Main {
 
                     break;
             }
 
                     break;
             }

-            System.exit(0);
+            return 0;

         } finally {
             if (dBusConn != null) {
                 dBusConn.disconnect();
         } finally {
             if (dBusConn != null) {
                 dBusConn.disconnect();


@@ -454,16 +639,47 @@ public class Main {
         }
     }
 
         }
     }
 

+    private static void printIdentityFingerprint(Manager m, String theirUsername, JsonIdentityKeyStore.Identity theirId) {
+        String digits = formatSafetyNumber(m.computeSafetyNumber(theirUsername, theirId.getIdentityKey()));
+        System.out.println(String.format("%s: %s Added: %s Fingerprint: %s Safety Number: %s", theirUsername,
+                theirId.getTrustLevel(), theirId.getDateAdded(), Hex.toStringCondensed(theirId.getFingerprint()), digits));
+    }
+
+    private static void printGroup(GroupInfo group, boolean detailed) {
+        if (detailed) {
+            System.out.println(String.format("Id: %s Name: %s  Active: %s Members: %s",
+                    Base64.encodeBytes(group.groupId), group.name, group.active, group.members));
+        } else {
+            System.out.println(String.format("Id: %s Name: %s  Active: %s", Base64.encodeBytes(group.groupId),
+                    group.name, group.active));
+        }
+    }
+
+    private static String formatSafetyNumber(String digits) {
+        final int partCount = 12;
+        int partSize = digits.length() / partCount;
+        StringBuilder f = new StringBuilder(digits.length() + partCount);
+        for (int i = 0; i < partCount; i++) {
+            f.append(digits.substring(i * partSize, (i * partSize) + partSize)).append(" ");
+        }
+        return f.toString();
+    }
+

     private static void handleGroupNotFoundException(GroupNotFoundException e) {
         System.err.println("Failed to send to group: " + e.getMessage());
         System.err.println("Aborting sending.");
     private static void handleGroupNotFoundException(GroupNotFoundException e) {
         System.err.println("Failed to send to group: " + e.getMessage());
         System.err.println("Aborting sending.");

-        System.exit(1);

     }
 
     }
 

+    private static void handleNotAGroupMemberException(NotAGroupMemberException e) {
+        System.err.println("Failed to send to group: " + e.getMessage());
+        System.err.println("Update the group on another device to readd the user to this group.");
+        System.err.println("Aborting sending.");
+    }
+
+

     private static void handleDBusExecutionException(DBusExecutionException e) {
         System.err.println("Cannot connect to dbus: " + e.getMessage());
         System.err.println("Aborting.");
     private static void handleDBusExecutionException(DBusExecutionException e) {
         System.err.println("Cannot connect to dbus: " + e.getMessage());
         System.err.println("Aborting.");

-        System.exit(1);

     }
 
     private static byte[] decodeGroupId(String groupId) {
     }
 
     private static byte[] decodeGroupId(String groupId) {


@@ -487,7 +703,7 @@ public class Main {
                 .help("Show package version.")
                 .action(Arguments.version());
         parser.addArgument("--config")
                 .help("Show package version.")
                 .action(Arguments.version());
         parser.addArgument("--config")

-                .help("Set the path, where to store the config (Default: $HOME/.config/signal-cli).");
+                .help("Set the path, where to store the config (Default: $HOME/.config/signal).");

 
         MutuallyExclusiveGroup mut = parser.addMutuallyExclusiveGroup();
         mut.addArgument("-u", "--username")
 
         MutuallyExclusiveGroup mut = parser.addMutuallyExclusiveGroup();
         mut.addArgument("-u", "--username")


@@ -516,11 +732,23 @@ public class Main {
 
         Subparser parserDevices = subparsers.addParser("listDevices");
 
 
         Subparser parserDevices = subparsers.addParser("listDevices");
 

+        Subparser parserRemoveDevice = subparsers.addParser("removeDevice");
+        parserRemoveDevice.addArgument("-d", "--deviceId")
+                .type(int.class)
+                .required(true)
+                .help("Specify the device you want to remove. Use listDevices to see the deviceIds.");
+

         Subparser parserRegister = subparsers.addParser("register");
         parserRegister.addArgument("-v", "--voice")
                 .help("The verification should be done over voice, not sms.")
                 .action(Arguments.storeTrue());
 
         Subparser parserRegister = subparsers.addParser("register");
         parserRegister.addArgument("-v", "--voice")
                 .help("The verification should be done over voice, not sms.")
                 .action(Arguments.storeTrue());
 

+        Subparser parserUnregister = subparsers.addParser("unregister");
+        parserUnregister.help("Unregister the current device from the signal server.");
+
+        Subparser parserUpdateAccount = subparsers.addParser("updateAccount");
+        parserUpdateAccount.help("Update the account attributes on the signal server.");
+

         Subparser parserVerify = subparsers.addParser("verify");
         parserVerify.addArgument("verificationCode")
                 .help("The verification code you received via sms or voice call.");
         Subparser parserVerify = subparsers.addParser("verify");
         parserVerify.addArgument("verificationCode")
                 .help("The verification code you received via sms or voice call.");


@@ -556,15 +784,41 @@ public class Main {
                 .nargs("*")
                 .help("Specify one or more members to add to the group");
 
                 .nargs("*")
                 .help("Specify one or more members to add to the group");
 

+        Subparser parserListGroups = subparsers.addParser("listGroups");
+        parserListGroups.addArgument("-d", "--detailed").action(Arguments.storeTrue())
+                .help("List members of each group");
+        parserListGroups.help("List group name and ids");
+
+        Subparser parserListIdentities = subparsers.addParser("listIdentities");
+        parserListIdentities.addArgument("-n", "--number")
+                .help("Only show identity keys for the given phone number.");
+
+        Subparser parserTrust = subparsers.addParser("trust");
+        parserTrust.addArgument("number")
+                .help("Specify the phone number, for which to set the trust.")
+                .required(true);
+        MutuallyExclusiveGroup mutTrust = parserTrust.addMutuallyExclusiveGroup();
+        mutTrust.addArgument("-a", "--trust-all-known-keys")
+                .help("Trust all known keys of this user, only use this for testing.")
+                .action(Arguments.storeTrue());
+        mutTrust.addArgument("-v", "--verified-fingerprint")
+                .help("Specify the fingerprint of the key, only use this option if you have verified the fingerprint.");
+

         Subparser parserReceive = subparsers.addParser("receive");
         parserReceive.addArgument("-t", "--timeout")
         Subparser parserReceive = subparsers.addParser("receive");
         parserReceive.addArgument("-t", "--timeout")

-                .type(int.class)
+                .type(double.class)

                 .help("Number of seconds to wait for new messages (negative values disable timeout)");
                 .help("Number of seconds to wait for new messages (negative values disable timeout)");

+        parserReceive.addArgument("--ignore-attachments")
+                .help("Don’t download attachments of received messages.")
+                .action(Arguments.storeTrue());

 
         Subparser parserDaemon = subparsers.addParser("daemon");
         parserDaemon.addArgument("--system")
                 .action(Arguments.storeTrue())
                 .help("Use DBus system bus instead of user bus.");
 
         Subparser parserDaemon = subparsers.addParser("daemon");
         parserDaemon.addArgument("--system")
                 .action(Arguments.storeTrue())
                 .help("Use DBus system bus instead of user bus.");

+        parserDaemon.addArgument("--ignore-attachments")
+                .help("Don’t download attachments of received messages.")
+                .action(Arguments.storeTrue());

 
         try {
             Namespace ns = parser.parseArgs(args);
 
         try {
             Namespace ns = parser.parseArgs(args);


@@ -600,7 +854,6 @@ public class Main {
         System.err.println("Failed to send/receive message (Assertion): " + e.getMessage());
         e.printStackTrace();
         System.err.println("If you use an Oracle JRE please check if you have unlimited strength crypto enabled, see README");
         System.err.println("Failed to send/receive message (Assertion): " + e.getMessage());
         e.printStackTrace();
         System.err.println("If you use an Oracle JRE please check if you have unlimited strength crypto enabled, see README");

-        System.exit(1);

     }
 
     private static void handleEncapsulatedExceptions(EncapsulatedExceptions e) {
     }
 
     private static void handleEncapsulatedExceptions(EncapsulatedExceptions e) {


@@ -620,6 +873,18 @@ public class Main {
         System.err.println("Failed to send message: " + e.getMessage());
     }
 
         System.err.println("Failed to send message: " + e.getMessage());
     }
 

+    private static String readAll(InputStream in) throws IOException {
+        StringWriter output = new StringWriter();
+        byte[] buffer = new byte[4096];
+        long count = 0;
+        int n;
+        while (-1 != (n = System.in.read(buffer))) {
+            output.write(new String(buffer, 0, n, Charset.defaultCharset()));
+            count += n;
+        }
+        return output.toString();
+    }
+

     private static class ReceiveMessageHandler implements Manager.ReceiveMessageHandler {
         final Manager m;
 
     private static class ReceiveMessageHandler implements Manager.ReceiveMessageHandler {
         final Manager m;
 


@@ -628,23 +893,34 @@ public class Main {
         }
 
         @Override
         }
 
         @Override

-        public void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, GroupInfo group) {
+        public void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, Throwable exception) {

             SignalServiceAddress source = envelope.getSourceAddress();
             SignalServiceAddress source = envelope.getSourceAddress();

-            System.out.println(String.format("Envelope from: %s (device: %d)", source.getNumber(), envelope.getSourceDevice()));
+            ContactInfo sourceContact = m.getContact(source.getNumber());
+            System.out.println(String.format("Envelope from: %s (device: %d)", (sourceContact == null ? "" : "“" + sourceContact.name + "” ") + source.getNumber(), envelope.getSourceDevice()));

             if (source.getRelay().isPresent()) {
                 System.out.println("Relayed by: " + source.getRelay().get());
             }
             if (source.getRelay().isPresent()) {
                 System.out.println("Relayed by: " + source.getRelay().get());
             }

-            System.out.println("Timestamp: " + envelope.getTimestamp());
+            System.out.println("Timestamp: " + formatTimestamp(envelope.getTimestamp()));

 
             if (envelope.isReceipt()) {
                 System.out.println("Got receipt.");
             } else if (envelope.isSignalMessage() | envelope.isPreKeySignalMessage()) {
 
             if (envelope.isReceipt()) {
                 System.out.println("Got receipt.");
             } else if (envelope.isSignalMessage() | envelope.isPreKeySignalMessage()) {

+                if (exception != null) {
+                    if (exception instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
+                        org.whispersystems.libsignal.UntrustedIdentityException e = (org.whispersystems.libsignal.UntrustedIdentityException) exception;
+                        System.out.println("The user’s key is untrusted, either the user has reinstalled Signal or a third party sent this message.");
+                        System.out.println("Use 'signal-cli -u " + m.getUsername() + " listIdentities -n " + e.getName() + "', verify the key and run 'signal-cli -u " + m.getUsername() + " trust -v \"FINGER_PRINT\" " + e.getName() + "' to mark it as trusted");
+                        System.out.println("If you don't care about security, use 'signal-cli -u " + m.getUsername() + " trust -a " + e.getName() + "' to trust it without verification");
+                    } else {
+                        System.out.println("Exception: " + exception.getMessage() + " (" + exception.getClass().getSimpleName() + ")");
+                    }
+                }

                 if (content == null) {
                     System.out.println("Failed to decrypt message.");
                 } else {
                     if (content.getDataMessage().isPresent()) {
                         SignalServiceDataMessage message = content.getDataMessage().get();
                 if (content == null) {
                     System.out.println("Failed to decrypt message.");
                 } else {
                     if (content.getDataMessage().isPresent()) {
                         SignalServiceDataMessage message = content.getDataMessage().get();

-                        handleSignalServiceDataMessage(message, group);
+                        handleSignalServiceDataMessage(message);

                     }
                     if (content.getSyncMessage().isPresent()) {
                         System.out.println("Received a sync message");
                     }
                     if (content.getSyncMessage().isPresent()) {
                         System.out.println("Received a sync message");


@@ -661,7 +937,8 @@ public class Main {
                         if (syncMessage.getRead().isPresent()) {
                             System.out.println("Received sync read messages list");
                             for (ReadMessage rm : syncMessage.getRead().get()) {
                         if (syncMessage.getRead().isPresent()) {
                             System.out.println("Received sync read messages list");
                             for (ReadMessage rm : syncMessage.getRead().get()) {

-                                System.out.println("From: " + rm.getSender() + " Message timestamp: " + rm.getTimestamp());
+                                ContactInfo fromContact = m.getContact(rm.getSender());
+                                System.out.println("From: " + (fromContact == null ? "" : "“" + fromContact.name + "” ") + rm.getSender() + " Message timestamp: " + formatTimestamp(rm.getTimestamp()));

                             }
                         }
                         if (syncMessage.getRequest().isPresent()) {
                             }
                         }
                         if (syncMessage.getRequest().isPresent()) {


@@ -676,9 +953,28 @@ public class Main {
                         if (syncMessage.getSent().isPresent()) {
                             System.out.println("Received sync sent message");
                             final SentTranscriptMessage sentTranscriptMessage = syncMessage.getSent().get();
                         if (syncMessage.getSent().isPresent()) {
                             System.out.println("Received sync sent message");
                             final SentTranscriptMessage sentTranscriptMessage = syncMessage.getSent().get();

-                            System.out.println("To: " + (sentTranscriptMessage.getDestination().isPresent() ? sentTranscriptMessage.getDestination().get() : "Unknown") + " , Message timestamp: " + sentTranscriptMessage.getTimestamp());
+                            String to;
+                            if (sentTranscriptMessage.getDestination().isPresent()) {
+                                String dest = sentTranscriptMessage.getDestination().get();
+                                ContactInfo destContact = m.getContact(dest);
+                                to = (destContact == null ? "" : "“" + destContact.name + "” ") + dest;
+                            } else {
+                                to = "Unknown";
+                            }
+                            System.out.println("To: " + to + " , Message timestamp: " + formatTimestamp(sentTranscriptMessage.getTimestamp()));
+                            if (sentTranscriptMessage.getExpirationStartTimestamp() > 0) {
+                                System.out.println("Expiration started at: " + formatTimestamp(sentTranscriptMessage.getExpirationStartTimestamp()));
+                            }

                             SignalServiceDataMessage message = sentTranscriptMessage.getMessage();
                             SignalServiceDataMessage message = sentTranscriptMessage.getMessage();

-                            handleSignalServiceDataMessage(message, null);
+                            handleSignalServiceDataMessage(message);
+                        }
+                        if (syncMessage.getBlockedList().isPresent()) {
+                            System.out.println("Received sync message with block list");
+                            System.out.println("Blocked numbers:");
+                            final BlockedListMessage blockedList = syncMessage.getBlockedList().get();
+                            for (String number : blockedList.getNumbers()) {
+                                System.out.println(" - " + number);
+                            }

                         }
                     }
                 }
                         }
                     }
                 }


@@ -688,9 +984,8 @@ public class Main {
             System.out.println();
         }
 
             System.out.println();
         }
 

-        // TODO remove group parameter
-        private void handleSignalServiceDataMessage(SignalServiceDataMessage message, GroupInfo group) {
-            System.out.println("Message timestamp: " + message.getTimestamp());
+        private void handleSignalServiceDataMessage(SignalServiceDataMessage message) {
+            System.out.println("Message timestamp: " + formatTimestamp(message.getTimestamp()));

 
             if (message.getBody().isPresent()) {
                 System.out.println("Body: " + message.getBody().get());
 
             if (message.getBody().isPresent()) {
                 System.out.println("Body: " + message.getBody().get());


@@ -699,12 +994,15 @@ public class Main {
                 SignalServiceGroup groupInfo = message.getGroupInfo().get();
                 System.out.println("Group info:");
                 System.out.println("  Id: " + Base64.encodeBytes(groupInfo.getGroupId()));
                 SignalServiceGroup groupInfo = message.getGroupInfo().get();
                 System.out.println("Group info:");
                 System.out.println("  Id: " + Base64.encodeBytes(groupInfo.getGroupId()));

-                if (groupInfo.getName().isPresent()) {
+                if (groupInfo.getType() == SignalServiceGroup.Type.UPDATE && groupInfo.getName().isPresent()) {

                     System.out.println("  Name: " + groupInfo.getName().get());
                     System.out.println("  Name: " + groupInfo.getName().get());

-                } else if (group != null) {
-                    System.out.println("  Name: " + group.name);

                 } else {
                 } else {

-                    System.out.println("  Name: <Unknown group>");
+                    GroupInfo group = m.getGroup(groupInfo.getGroupId());
+                    if (group != null) {
+                        System.out.println("  Name: " + group.name);
+                    } else {
+                        System.out.println("  Name: <Unknown group>");
+                    }

                 }
                 System.out.println("  Type: " + groupInfo.getType());
                 if (groupInfo.getMembers().isPresent()) {
                 }
                 System.out.println("  Type: " + groupInfo.getType());
                 if (groupInfo.getMembers().isPresent()) {


@@ -720,6 +1018,12 @@ public class Main {
             if (message.isEndSession()) {
                 System.out.println("Is end session");
             }
             if (message.isEndSession()) {
                 System.out.println("Is end session");
             }

+            if (message.isExpirationUpdate()) {
+                System.out.println("Is Expiration update: " + message.isExpirationUpdate());
+            }
+            if (message.getExpiresInSeconds() > 0) {
+                System.out.println("Expires in: " + message.getExpiresInSeconds() + " seconds");
+            }

 
             if (message.getAttachments().isPresent()) {
                 System.out.println("Attachments: ");
 
             if (message.getAttachments().isPresent()) {
                 System.out.println("Attachments: ");


@@ -752,8 +1056,8 @@ public class Main {
         }
 
         @Override
         }
 
         @Override

-        public void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, GroupInfo group) {
-            super.handleMessage(envelope, content, group);
+        public void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, Throwable exception) {
+            super.handleMessage(envelope, content, exception);

 
             if (!envelope.isReceipt() && content != null && content.getDataMessage().isPresent()) {
                 SignalServiceDataMessage message = content.getDataMessage().get();
 
             if (!envelope.isReceipt() && content != null && content.getDataMessage().isPresent()) {
                 SignalServiceDataMessage message = content.getDataMessage().get();


@@ -785,17 +1089,12 @@ public class Main {
             }
         }
 
             }
         }
 

-        private void printAttachment(SignalServiceAttachment attachment) {
-            System.out.println("- " + attachment.getContentType() + " (" + (attachment.isPointer() ? "Pointer" : "") + (attachment.isStream() ? "Stream" : "") + ")");
-            if (attachment.isPointer()) {
-                final SignalServiceAttachmentPointer pointer = attachment.asPointer();
-                System.out.println("  Id: " + pointer.getId() + " Key length: " + pointer.getKey().length + (pointer.getRelay().isPresent() ? " Relay: " + pointer.getRelay().get() : ""));
-                System.out.println("  Size: " + (pointer.getSize().isPresent() ? pointer.getSize().get() + " bytes" : "<unavailable>") + (pointer.getPreview().isPresent() ? " (Preview is available: " + pointer.getPreview().get().length + " bytes)" : ""));
-                File file = m.getAttachmentFile(pointer.getId());
-                if (file.exists()) {
-                    System.out.println("  Stored plaintext in: " + file);
-                }
-            }
-        }
+    }
+
+    private static String formatTimestamp(long timestamp) {
+        Date date = new Date(timestamp);
+        final DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'"); // Quoted "Z" to indicate UTC, no timezone offset
+        df.setTimeZone(tzUTC);
+        return timestamp + " (" + df.format(date) + ")";

     }
 }
     }
 }