Add possibility to send messages via dbus daemon

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

diff --git a/src/main/java/cli/Main.java b/src/main/java/cli/Main.java
index 07353a199a4f3d1167b93f9f8dff3815e7fd853f..2884ef9141eb0cb6c02d866afc6e1e0cd80d2b89 100644 (file)
--- a/src/main/java/cli/Main.java
+++ b/src/main/java/cli/Main.java
@@ -20,22 +20,18 @@ import net.sourceforge.argparse4j.ArgumentParsers;
 import net.sourceforge.argparse4j.impl.Arguments;
 import net.sourceforge.argparse4j.inf.*;
 import org.apache.commons.io.IOUtils;
 import net.sourceforge.argparse4j.impl.Arguments;
 import net.sourceforge.argparse4j.inf.*;
 import org.apache.commons.io.IOUtils;

-import org.whispersystems.libaxolotl.InvalidMessageException;
+import org.freedesktop.dbus.DBusConnection;
+import org.freedesktop.dbus.exceptions.DBusException;

 import org.whispersystems.textsecure.api.crypto.UntrustedIdentityException;
 import org.whispersystems.textsecure.api.messages.*;
 import org.whispersystems.textsecure.api.messages.multidevice.TextSecureSyncMessage;
 import org.whispersystems.textsecure.api.crypto.UntrustedIdentityException;
 import org.whispersystems.textsecure.api.messages.*;
 import org.whispersystems.textsecure.api.messages.multidevice.TextSecureSyncMessage;

-import org.whispersystems.textsecure.api.push.TextSecureAddress;

 import org.whispersystems.textsecure.api.push.exceptions.EncapsulatedExceptions;
 import org.whispersystems.textsecure.api.push.exceptions.NetworkFailureException;
 import org.whispersystems.textsecure.api.push.exceptions.UnregisteredUserException;
 import org.whispersystems.textsecure.api.push.exceptions.EncapsulatedExceptions;
 import org.whispersystems.textsecure.api.push.exceptions.NetworkFailureException;
 import org.whispersystems.textsecure.api.push.exceptions.UnregisteredUserException;

-import org.whispersystems.textsecure.api.util.InvalidNumberException;
+import org.whispersystems.textsecure.api.util.PhoneNumberFormatter;

 
 import java.io.File;
 
 import java.io.File;

-import java.io.FileInputStream;

 import java.io.IOException;
 import java.io.IOException;

-import java.io.InputStream;
-import java.nio.file.Files;
-import java.nio.file.Paths;

 import java.security.Security;
 import java.util.ArrayList;
 import java.util.List;
 import java.security.Security;
 import java.util.ArrayList;
 import java.util.List;


@@ -52,116 +48,287 @@ public class Main {
         }
 
         final String username = ns.getString("username");
         }
 
         final String username = ns.getString("username");

-        final Manager m = new Manager(username);
-        if (m.userExists()) {
-            try {
-                m.load();
-            } catch (Exception e) {
-                System.err.println("Error loading state file \"" + m.getFileName() + "\": " + e.getMessage());
-                System.exit(2);
-            }
-        }
-
-        switch (ns.getString("command")) {
-            case "register":
-                if (!m.userHasKeys()) {
-                    m.createNewIdentity();
-                }
-                try {
-                    m.register(ns.getBoolean("voice"));
-                } catch (IOException e) {
-                    System.err.println("Request verify error: " + e.getMessage());
-                    System.exit(3);
-                }
-                break;
-            case "verify":
-                if (!m.userHasKeys()) {
-                    System.err.println("User has no keys, first call register.");
-                    System.exit(1);
-                }
-                if (m.isRegistered()) {
-                    System.err.println("User registration is already verified");
-                    System.exit(1);
-                }
+        Manager m;
+        TextSecure ts;
+        DBusConnection dBusConn = null;
+        try {
+            if (ns.getBoolean("dbus") || ns.getBoolean("dbus_system")) {

                 try {
                 try {

-                    m.verifyAccount(ns.getString("verificationCode"));
-                } catch (IOException e) {
-                    System.err.println("Verify error: " + e.getMessage());
+                    m = null;
+                    int busType;
+                    if (ns.getBoolean("dbus_system")) {
+                        busType = DBusConnection.SYSTEM;
+                    } else {
+                        busType = DBusConnection.SESSION;
+                    }
+                    dBusConn = DBusConnection.getConnection(busType);
+                    ts = (TextSecure) dBusConn.getRemoteObject(
+                            "org.asamk.TextSecure", "/org/asamk/TextSecure",
+                            TextSecure.class);
+                } catch (DBusException e) {
+                    e.printStackTrace();
+                    if (dBusConn != null) {
+                        dBusConn.disconnect();
+                    }

                     System.exit(3);
                     System.exit(3);

+                    return;

                 }
                 }

-                break;
-            case "send":
-                if (!m.isRegistered()) {
-                    System.err.println("User is not registered.");
-                    System.exit(1);
+            } else {
+                m = new Manager(username);
+                ts = m;
+                if (m.userExists()) {
+                    try {
+                        m.load();
+                    } catch (Exception e) {
+                        System.err.println("Error loading state file \"" + m.getFileName() + "\": " + e.getMessage());
+                        System.exit(2);
+                        return;
+                    }

                 }
                 }

-                String messageText = ns.getString("message");
-                if (messageText == null) {
+            }
+
+            switch (ns.getString("command")) {
+                case "register":
+                    if (dBusConn != null) {
+                        System.err.println("register is not yet implementd via dbus");
+                        System.exit(1);
+                    }
+                    if (!m.userHasKeys()) {
+                        m.createNewIdentity();
+                    }

                     try {
                     try {

-                        messageText = IOUtils.toString(System.in);
+                        m.register(ns.getBoolean("voice"));

                     } catch (IOException e) {
                     } catch (IOException e) {

-                        System.err.println("Failed to read message from stdin: " + e.getMessage());
+                        System.err.println("Request verify error: " + e.getMessage());
+                        System.exit(3);
+                    }
+                    break;
+                case "verify":
+                    if (dBusConn != null) {
+                        System.err.println("verify is not yet implementd via dbus");
+                        System.exit(1);
+                    }
+                    if (!m.userHasKeys()) {
+                        System.err.println("User has no keys, first call register.");
+                        System.exit(1);
+                    }
+                    if (m.isRegistered()) {
+                        System.err.println("User registration is already verified");
+                        System.exit(1);
+                    }
+                    try {
+                        m.verifyAccount(ns.getString("verificationCode"));
+                    } catch (IOException e) {
+                        System.err.println("Verify error: " + e.getMessage());
+                        System.exit(3);
+                    }
+                    break;
+                case "send":
+                    if (dBusConn == null && !m.isRegistered()) {
+                        System.err.println("User is not registered.");

                         System.exit(1);
                     }
                         System.exit(1);
                     }

-                }

 
 

-                final List<String> attachments = ns.getList("attachment");
-                List<TextSecureAttachment> textSecureAttachments = null;
-                if (attachments != null) {
-                    textSecureAttachments = new ArrayList<>(attachments.size());
-                    for (String attachment : attachments) {
+                    if (ns.getBoolean("endsession")) {
+                        if (ns.getList("recipient") == null) {
+                            System.err.println("No recipients given");
+                            System.err.println("Aborting sending.");
+                            System.exit(1);
+                        }
+                        try {
+                            ts.sendEndSessionMessage(ns.<String>getList("recipient"));
+                        } catch (IOException e) {
+                            handleIOException(e);
+                        } catch (EncapsulatedExceptions e) {
+                            handleEncapsulatedExceptions(e);
+                        } catch (AssertionError e) {
+                            handleAssertionError(e);
+                        }
+                    } else {
+                        String messageText = ns.getString("message");
+                        if (messageText == null) {
+                            try {
+                                messageText = IOUtils.toString(System.in);
+                            } catch (IOException e) {
+                                System.err.println("Failed to read message from stdin: " + e.getMessage());
+                                System.err.println("Aborting sending.");
+                                System.exit(1);
+                            }
+                        }
+

                         try {
                         try {

-                            File attachmentFile = new File(attachment);
-                            InputStream attachmentStream = new FileInputStream(attachmentFile);
-                            final long attachmentSize = attachmentFile.length();
-                            String mime = Files.probeContentType(Paths.get(attachment));
-                            textSecureAttachments.add(new TextSecureAttachmentStream(attachmentStream, mime, attachmentSize, null));
+                            List<String> attachments = ns.getList("attachment");
+                            if (attachments == null) {
+                                attachments = new ArrayList<>();
+                            }
+                            if (ns.getString("group") != null) {
+                                byte[] groupId = decodeGroupId(ns.getString("group"));
+                                ts.sendGroupMessage(messageText, attachments, groupId);
+                            } else {
+                                ts.sendMessage(messageText, attachments, ns.<String>getList("recipient"));
+                            }

                         } catch (IOException e) {
                         } catch (IOException e) {

-                            System.err.println("Failed to add attachment \"" + attachment + "\": " + e.getMessage());
+                            handleIOException(e);
+                        } catch (EncapsulatedExceptions e) {
+                            handleEncapsulatedExceptions(e);
+                        } catch (AssertionError e) {
+                            handleAssertionError(e);
+                        } catch (GroupNotFoundException e) {
+                            handleGroupNotFoundException(e);
+                        } catch (AttachmentInvalidException e) {
+                            System.err.println("Failed to add attachment (\"" + e.getAttachment() + "\"): " + e.getMessage());

                             System.err.println("Aborting sending.");
                             System.exit(1);
                         }
                     }
                             System.err.println("Aborting sending.");
                             System.exit(1);
                         }
                     }

-                }

 
 

-                List<TextSecureAddress> recipients = new ArrayList<>(ns.<String>getList("recipient").size());
-                for (String recipient : ns.<String>getList("recipient")) {
+                    break;
+                case "receive":
+                    if (dBusConn != null) {
+                        System.err.println("receive is not yet implementd via dbus");
+                        System.exit(1);
+                    }
+                    if (!m.isRegistered()) {
+                        System.err.println("User is not registered.");
+                        System.exit(1);
+                    }
+                    int timeout = 5;
+                    if (ns.getInt("timeout") != null) {
+                        timeout = ns.getInt("timeout");
+                    }
+                    boolean returnOnTimeout = true;
+                    if (timeout < 0) {
+                        returnOnTimeout = false;
+                        timeout = 3600;
+                    }
+                    try {
+                        m.receiveMessages(timeout, returnOnTimeout, new ReceiveMessageHandler(m));
+                    } catch (IOException e) {
+                        System.err.println("Error while receiving messages: " + e.getMessage());
+                        System.exit(3);
+                    } catch (AssertionError e) {
+                        handleAssertionError(e);
+                    }
+                    break;
+                case "quitGroup":
+                    if (dBusConn != null) {
+                        System.err.println("quitGroup is not yet implementd via dbus");
+                        System.exit(1);
+                    }
+                    if (!m.isRegistered()) {
+                        System.err.println("User is not registered.");
+                        System.exit(1);
+                    }
+

                     try {
                     try {

-                        recipients.add(m.getPushAddress(recipient));
-                    } catch (InvalidNumberException e) {
-                        System.err.println("Failed to add recipient \"" + recipient + "\": " + e.getMessage());
+                        m.sendQuitGroupMessage(decodeGroupId(ns.getString("group")));
+                    } catch (IOException e) {
+                        handleIOException(e);
+                    } catch (EncapsulatedExceptions e) {
+                        handleEncapsulatedExceptions(e);
+                    } catch (AssertionError e) {
+                        handleAssertionError(e);
+                    } catch (GroupNotFoundException e) {
+                        handleGroupNotFoundException(e);
+                    }
+
+                    break;
+                case "updateGroup":
+                    if (dBusConn != null) {
+                        System.err.println("updateGroup is not yet implementd via dbus");
+                        System.exit(1);
+                    }
+                    if (!m.isRegistered()) {
+                        System.err.println("User is not registered.");
+                        System.exit(1);
+                    }
+
+                    try {
+                        byte[] groupId = null;
+                        if (ns.getString("group") != null) {
+                            groupId = decodeGroupId(ns.getString("group"));
+                        }
+                        byte[] newGroupId = m.sendUpdateGroupMessage(groupId, ns.getString("name"), ns.<String>getList("member"), ns.getString("avatar"));
+                        if (groupId == null) {
+                            System.out.println("Creating new group \"" + Base64.encodeBytes(newGroupId) + "\" …");
+                        }
+                    } catch (IOException e) {
+                        handleIOException(e);
+                    } catch (AttachmentInvalidException e) {
+                        System.err.println("Failed to add avatar attachment (\"" + e.getAttachment() + ") for group\": " + e.getMessage());

                         System.err.println("Aborting sending.");
                         System.exit(1);
                         System.err.println("Aborting sending.");
                         System.exit(1);

+                    } catch (GroupNotFoundException e) {
+                        handleGroupNotFoundException(e);
+                    } catch (EncapsulatedExceptions e) {
+                        handleEncapsulatedExceptions(e);

                     }
                     }

-                }
-                sendMessage(m, messageText, textSecureAttachments, recipients);
-                break;
-            case "receive":
-                if (!m.isRegistered()) {
-                    System.err.println("User is not registered.");
-                    System.exit(1);
-                }
-                int timeout = ns.getInt("timeout");
-                boolean returnOnTimeout = true;
-                if (timeout < 0) {
-                    returnOnTimeout = false;
-                    timeout = 5;
-                }
-                try {
-                    m.receiveMessages(timeout, returnOnTimeout, new ReceiveMessageHandler(m));
-                } catch (IOException e) {
-                    System.err.println("Error while receiving message: " + e.getMessage());
-                    System.exit(3);
-                } catch (AssertionError e) {
-                    System.err.println("Failed to receive message (Assertion): " + e.getMessage());
-                    System.err.println(e.getStackTrace());
-                    System.err.println("If you use an Oracle JRE please check if you have unlimited strength crypto enabled, see README");
-                    System.exit(1);
-                }
-                break;
+
+                    break;
+                case "daemon":
+                    if (dBusConn != null) {
+                        System.err.println("Stop it.");
+                        System.exit(1);
+                    }
+                    if (!m.isRegistered()) {
+                        System.err.println("User is not registered.");
+                        System.exit(1);
+                    }
+                    DBusConnection conn = null;
+                    try {
+                        try {
+                            int busType;
+                            if (ns.getBoolean("system")) {
+                                busType = DBusConnection.SYSTEM;
+                            } else {
+                                busType = DBusConnection.SESSION;
+                            }
+                            conn = DBusConnection.getConnection(busType);
+                            conn.requestBusName("org.asamk.TextSecure");
+                            conn.exportObject("/org/asamk/TextSecure", m);
+                        } catch (DBusException e) {
+                            e.printStackTrace();
+                            System.exit(3);
+                        }
+                        try {
+                            m.receiveMessages(3600, false, new ReceiveMessageHandler(m));
+                        } catch (IOException e) {
+                            System.err.println("Error while receiving messages: " + e.getMessage());
+                            System.exit(3);
+                        } catch (AssertionError e) {
+                            handleAssertionError(e);
+                        }
+                    } finally {
+                        if (conn != null) {
+                            conn.disconnect();
+                        }
+                    }
+
+                    break;
+            }
+            System.exit(0);
+        } finally {
+            if (dBusConn != null) {
+                dBusConn.disconnect();
+            }
+        }
+    }
+
+    private static void handleGroupNotFoundException(GroupNotFoundException e) {
+        System.err.println("Failed to send to group \"" + Base64.encodeBytes(e.getGroupId()) + "\": Unknown group");
+        System.err.println("Aborting sending.");
+        System.exit(1);
+    }
+
+    private static byte[] decodeGroupId(String groupId) {
+        try {
+            return Base64.decode(groupId);
+        } catch (IOException e) {
+            System.err.println("Failed to decode groupId (must be base64) \"" + groupId + "\": " + e.getMessage());
+            System.err.println("Aborting sending.");
+            System.exit(1);
+            return null;

         }
         }

-        m.save();
-        System.exit(0);

     }
 
     private static Namespace parseArgs(String[] args) {
     }
 
     private static Namespace parseArgs(String[] args) {


@@ -170,12 +337,20 @@ public class Main {
                 .description("Commandline interface for TextSecure.")
                 .version(Manager.PROJECT_NAME + " " + Manager.PROJECT_VERSION);
 
                 .description("Commandline interface for TextSecure.")
                 .version(Manager.PROJECT_NAME + " " + Manager.PROJECT_VERSION);
 

-        parser.addArgument("-u", "--username")
-                .help("Specify your phone number, that will be used for verification.");

         parser.addArgument("-v", "--version")
                 .help("Show package version.")
                 .action(Arguments.version());
 
         parser.addArgument("-v", "--version")
                 .help("Show package version.")
                 .action(Arguments.version());
 

+        MutuallyExclusiveGroup mut = parser.addMutuallyExclusiveGroup();
+        mut.addArgument("-u", "--username")
+                .help("Specify your phone number, that will be used for verification.");
+        mut.addArgument("--dbus")
+                .help("Make request via user dbus.")
+                .action(Arguments.storeTrue());
+        mut.addArgument("--dbus-system")
+                .help("Make request via system dbus.")
+                .action(Arguments.storeTrue());
+

         Subparsers subparsers = parser.addSubparsers()
                 .title("subcommands")
                 .dest("command")
         Subparsers subparsers = parser.addSubparsers()
                 .title("subcommands")
                 .dest("command")


@@ -192,6 +367,8 @@ public class Main {
                 .help("The verification code you received via sms or voice call.");
 
         Subparser parserSend = subparsers.addParser("send");
                 .help("The verification code you received via sms or voice call.");
 
         Subparser parserSend = subparsers.addParser("send");

+        parserSend.addArgument("-g", "--group")
+                .help("Specify the recipient group ID.");

         parserSend.addArgument("recipient")
                 .help("Specify the recipients' phone number.")
                 .nargs("*");
         parserSend.addArgument("recipient")
                 .help("Specify the recipients' phone number.")
                 .nargs("*");


@@ -200,17 +377,51 @@ public class Main {
         parserSend.addArgument("-a", "--attachment")
                 .nargs("*")
                 .help("Add file as attachment");
         parserSend.addArgument("-a", "--attachment")
                 .nargs("*")
                 .help("Add file as attachment");

+        parserSend.addArgument("-e", "--endsession")
+                .help("Clear session state and send end session message.")
+                .action(Arguments.storeTrue());
+
+        Subparser parserLeaveGroup = subparsers.addParser("quitGroup");
+        parserLeaveGroup.addArgument("-g", "--group")
+                .required(true)
+                .help("Specify the recipient group ID.");
+
+        Subparser parserUpdateGroup = subparsers.addParser("updateGroup");
+        parserUpdateGroup.addArgument("-g", "--group")
+                .help("Specify the recipient group ID.");
+        parserUpdateGroup.addArgument("-n", "--name")
+                .help("Specify the new group name.");
+        parserUpdateGroup.addArgument("-a", "--avatar")
+                .help("Specify a new group avatar image file");
+        parserUpdateGroup.addArgument("-m", "--member")
+                .nargs("*")
+                .help("Specify one or more members to add to the group");

 
         Subparser parserReceive = subparsers.addParser("receive");
         parserReceive.addArgument("-t", "--timeout")
                 .type(int.class)
                 .help("Number of seconds to wait for new messages (negative values disable timeout)");
 
 
         Subparser parserReceive = subparsers.addParser("receive");
         parserReceive.addArgument("-t", "--timeout")
                 .type(int.class)
                 .help("Number of seconds to wait for new messages (negative values disable timeout)");
 

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

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

-            if (ns.getString("username") == null) {
-                parser.printUsage();
-                System.err.println("You need to specify a username (phone number)");
+            if (!ns.getBoolean("dbus") && !ns.getBoolean("dbus_system")) {
+                if (ns.getString("username") == null) {
+                    parser.printUsage();
+                    System.err.println("You need to specify a username (phone number)");
+                    System.exit(2);
+                }
+                if (!PhoneNumberFormatter.isValidNumber(ns.getString("username"))) {
+                    System.err.println("Invalid username (phone number), make sure you include the country code.");
+                    System.exit(2);
+                }
+            }
+            if (ns.getList("recipient") != null && !ns.getList("recipient").isEmpty() && ns.getString("group") != null) {
+                System.err.println("You cannot specify recipients by phone number and groups a the same time");

                 System.exit(2);
             }
             return ns;
                 System.exit(2);
             }
             return ns;


@@ -220,37 +431,30 @@ public class Main {
         }
     }
 
         }
     }
 

-    private static void sendMessage(Manager m, String messageText, List<TextSecureAttachment> textSecureAttachments,
-                                    List<TextSecureAddress> recipients) {
-        final TextSecureDataMessage.Builder messageBuilder = TextSecureDataMessage.newBuilder().withBody(messageText);
-        if (textSecureAttachments != null) {
-            messageBuilder.withAttachments(textSecureAttachments);
-        }
-        TextSecureDataMessage message = messageBuilder.build();
+    private static void handleAssertionError(AssertionError e) {
+        System.err.println("Failed to send/receive message (Assertion): " + e.getMessage());
+        System.err.println(e.getStackTrace());
+        System.err.println("If you use an Oracle JRE please check if you have unlimited strength crypto enabled, see README");
+        System.exit(1);
+    }

 
 

-        try {
-            m.sendMessage(recipients, message);
-        } catch (IOException e) {
-            System.err.println("Failed to send message: " + e.getMessage());
-        } catch (EncapsulatedExceptions e) {
-            System.err.println("Failed to send (some) messages:");
-            for (NetworkFailureException n : e.getNetworkExceptions()) {
-                System.err.println("Network failure for \"" + n.getE164number() + "\": " + n.getMessage());
-            }
-            for (UnregisteredUserException n : e.getUnregisteredUserExceptions()) {
-                System.err.println("Unregistered user \"" + n.getE164Number() + "\": " + n.getMessage());
-            }
-            for (UntrustedIdentityException n : e.getUntrustedIdentityExceptions()) {
-                System.err.println("Untrusted Identity for \"" + n.getE164Number() + "\": " + n.getMessage());
-            }
-        } catch (AssertionError e) {
-            System.err.println("Failed to send message (Assertion): " + e.getMessage());
-            System.err.println(e.getStackTrace());
-            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) {
+        System.err.println("Failed to send (some) messages:");
+        for (NetworkFailureException n : e.getNetworkExceptions()) {
+            System.err.println("Network failure for \"" + n.getE164number() + "\": " + n.getMessage());
+        }
+        for (UnregisteredUserException n : e.getUnregisteredUserExceptions()) {
+            System.err.println("Unregistered user \"" + n.getE164Number() + "\": " + n.getMessage());
+        }
+        for (UntrustedIdentityException n : e.getUntrustedIdentityExceptions()) {
+            System.err.println("Untrusted Identity for \"" + n.getE164Number() + "\": " + n.getMessage());

         }
     }
 
         }
     }
 

+    private static void handleIOException(IOException e) {
+        System.err.println("Failed to send message: " + e.getMessage());
+    }
+

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


@@ -259,15 +463,13 @@ public class Main {
         }
 
         @Override
         }
 
         @Override

-        public void handleMessage(TextSecureEnvelope envelope) {
+        public void handleMessage(TextSecureEnvelope envelope, TextSecureContent content, GroupInfo group) {

             System.out.println("Envelope from: " + envelope.getSource());
             System.out.println("Timestamp: " + envelope.getTimestamp());
 
             if (envelope.isReceipt()) {
                 System.out.println("Got receipt.");
             } else if (envelope.isWhisperMessage() | envelope.isPreKeyWhisperMessage()) {
             System.out.println("Envelope from: " + envelope.getSource());
             System.out.println("Timestamp: " + envelope.getTimestamp());
 
             if (envelope.isReceipt()) {
                 System.out.println("Got receipt.");
             } else if (envelope.isWhisperMessage() | envelope.isPreKeyWhisperMessage()) {

-                TextSecureContent content = m.decryptMessage(envelope);
-

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


@@ -285,6 +487,10 @@ public class Main {
                             System.out.println("  Id: " + Base64.encodeBytes(groupInfo.getGroupId()));
                             if (groupInfo.getName().isPresent()) {
                                 System.out.println("  Name: " + groupInfo.getName().get());
                             System.out.println("  Id: " + Base64.encodeBytes(groupInfo.getGroupId()));
                             if (groupInfo.getName().isPresent()) {
                                 System.out.println("  Name: " + groupInfo.getName().get());

+                            } else 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()) {


@@ -299,7 +505,6 @@ public class Main {
                         }
                         if (message.isEndSession()) {
                             System.out.println("Is end session");
                         }
                         if (message.isEndSession()) {
                             System.out.println("Is end session");

-                            m.handleEndSession(envelope.getSource());

                         }
 
                         if (message.getAttachments().isPresent()) {
                         }
 
                         if (message.getAttachments().isPresent()) {


@@ -326,11 +531,9 @@ public class Main {
                 final TextSecureAttachmentPointer 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)" : ""));
                 final TextSecureAttachmentPointer 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)" : ""));

-                try {
-                    File file = m.retrieveAttachment(pointer);
+                File file = m.getAttachmentFile(pointer.getId());
+                if (file.exists()) {

                     System.out.println("  Stored plaintext in: " + file);
                     System.out.println("  Stored plaintext in: " + file);

-                } catch (IOException | InvalidMessageException e) {
-                    System.out.println("Failed to retrieve attachment: " + e.getMessage());

                 }
             }
         }
                 }
             }
         }