Refactoring, move more functionality into Manager

diff --git a/src/main/java/cli/AttachmentInvalidException.java b/src/main/java/cli/AttachmentInvalidException.java
new file mode 100644 (file)
index 0000000..289855e
--- /dev/null
+++ b/src/main/java/cli/AttachmentInvalidException.java
@@ -0,0 +1,14 @@
+package cli;
+
+public class AttachmentInvalidException extends Exception {
+    private final String attachment;
+
+    public AttachmentInvalidException(String attachment, Exception e) {
+        super(e);
+        this.attachment = attachment;
+    }
+
+    public String getAttachment() {
+        return attachment;
+    }
+}

diff --git a/src/main/java/cli/GroupNotFoundException.java b/src/main/java/cli/GroupNotFoundException.java
new file mode 100644 (file)
index 0000000..85e1cf0
--- /dev/null
+++ b/src/main/java/cli/GroupNotFoundException.java
@@ -0,0 +1,14 @@
+package cli;
+
+public class GroupNotFoundException extends Exception {
+    private final byte[] groupId;
+
+    public GroupNotFoundException(byte[] groupId) {
+        super();
+        this.groupId = groupId;
+    }
+
+    public byte[] getGroupId() {
+        return groupId;
+    }
+}

diff --git a/src/main/java/cli/JsonGroupStore.java b/src/main/java/cli/JsonGroupStore.java
index 29f9abfe6e1c1d74f02408b25c042ea013f4fb3b..0fbfdc853f247e84200d2475048a981f6a454ade 100644 (file)
--- a/src/main/java/cli/JsonGroupStore.java
+++ b/src/main/java/cli/JsonGroupStore.java
@@ -23,8 +23,12 @@ public class JsonGroupStore {
         groups.put(Base64.encodeBytes(group.groupId), group);
     }
 
         groups.put(Base64.encodeBytes(group.groupId), group);
     }
 

-    GroupInfo getGroup(byte[] groupId) {
-        return groups.get(Base64.encodeBytes(groupId));
+    GroupInfo getGroup(byte[] groupId) throws GroupNotFoundException {
+        GroupInfo g = groups.get(Base64.encodeBytes(groupId));
+        if (g == null) {
+            throw new GroupNotFoundException(groupId);
+        }
+        return g;

     }
 
     public static class MapToListSerializer extends JsonSerializer<Map<?, ?>> {
     }
 
     public static class MapToListSerializer extends JsonSerializer<Map<?, ?>> {

diff --git a/src/main/java/cli/Main.java b/src/main/java/cli/Main.java
index 08c7b935393023f965aec38cd9e3aaf0374f9288..49975daa284025aceb6bb63d58b3eaef1aafedbb 100644 (file)
--- a/src/main/java/cli/Main.java
+++ b/src/main/java/cli/Main.java
@@ -26,18 +26,11 @@ import org.whispersystems.textsecure.api.messages.multidevice.TextSecureSyncMess
 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 org.whispersystems.textsecure.api.util.PhoneNumberFormatter;
 
 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.security.Security;

-import java.util.ArrayList;
-import java.util.List;

 
 public class Main {
 
 
 public class Main {
 


@@ -95,39 +88,22 @@ public class Main {
                     System.exit(1);
                 }
 
                     System.exit(1);
                 }
 

-                byte[] groupId = null;
-                List<String> recipients = null;
-                if (ns.getString("group") != null) {
-                    try {
-                        GroupInfo g = m.getGroupInfo(Base64.decode(ns.getString("group")));
-                        if (g == null) {
-                            System.err.println("Failed to send to group \"" + ns.getString("group") + "\": Unknown group");
-                            System.err.println("Aborting sending.");
-                            System.exit(1);
-                        }
-                        groupId = g.groupId;
-                        recipients = new ArrayList<>(g.members);
-                    } catch (IOException e) {
-                        System.err.println("Failed to send to group \"" + ns.getString("group") + "\": " + e.getMessage());
+                if (ns.getBoolean("endsession")) {
+                    if (ns.getList("recipient") == null) {
+                        System.err.println("No recipients given");

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

-                } else {
-                    recipients = ns.<String>getList("recipient");
-                }
-
-                if (ns.getBoolean("endsession")) {
-                    sendEndSessionMessage(m, recipients);
-                } else {
-                    List<TextSecureAttachment> textSecureAttachments = null;

                     try {
                     try {

-                        textSecureAttachments = getTextSecureAttachments(ns.<String>getList("attachment"));
+                        m.sendEndSessionMessage(ns.getList("recipient"));

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

-                        System.err.println("Failed to add attachment: " + e.getMessage());
-                        System.err.println("Aborting sending.");
-                        System.exit(1);
+                        handleIOException(e);
+                    } catch (EncapsulatedExceptions e) {
+                        handleEncapsulatedExceptions(e);
+                    } catch (AssertionError e) {
+                        handleAssertionError(e);

                     }
                     }

-
+                } else {

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


@@ -139,7 +115,26 @@ public class Main {
                         }
                     }
 
                         }
                     }
 

-                    sendMessage(m, messageText, textSecureAttachments, recipients, groupId);
+                    try {
+                        if (ns.getString("group") != null) {
+                            byte[] groupId = decodeGroupId(ns.getString("group"));
+                            m.sendGroupMessage(messageText, ns.<String>getList("attachment"), groupId);
+                        } else {
+                            m.sendMessage(messageText, ns.<String>getList("attachment"), ns.getList("recipient"));
+                        }
+                    } catch (IOException e) {
+                        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);
+                    }

                 }
 
                 break;
                 }
 
                 break;


@@ -176,19 +171,17 @@ public class Main {
                 }
 
                 try {
                 }
 
                 try {

-                    GroupInfo g = m.getGroupInfo(Base64.decode(ns.getString("group")));
-                    if (g == null) {
-                        System.err.println("Failed to send to group \"" + ns.getString("group") + "\": Unknown group");
-                        System.err.println("Aborting sending.");
-                        System.exit(1);
-                    }
-
-                    sendQuitGroupMessage(m, new ArrayList<>(g.members), g.groupId);
+                    m.sendQuitGroupMessage(decodeGroupId(ns.getString("group")));

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

-                    System.err.println("Failed to send to group \"" + ns.getString("group") + "\": " + e.getMessage());
-                    System.err.println("Aborting sending.");
-                    System.exit(1);
+                    handleIOException(e);
+                } catch (EncapsulatedExceptions e) {
+                    handleEncapsulatedExceptions(e);
+                } catch (AssertionError e) {
+                    handleAssertionError(e);
+                } catch (GroupNotFoundException e) {
+                    handleGroupNotFoundException(e);

                 }
                 }

+

                 break;
             case "updateGroup":
                 if (!m.isRegistered()) {
                 break;
             case "updateGroup":
                 if (!m.isRegistered()) {


@@ -197,65 +190,24 @@ public class Main {
                 }
 
                 try {
                 }
 
                 try {

-                    GroupInfo g;
+                    byte[] groupId = null;

                     if (ns.getString("group") != null) {
                     if (ns.getString("group") != null) {

-                        g = m.getGroupInfo(Base64.decode(ns.getString("group")));
-                        if (g == null) {
-                            System.err.println("Failed to send to group \"" + ns.getString("group") + "\": Unknown group");
-                            System.err.println("Aborting sending.");
-                            System.exit(1);
-                        }
-                    } else {
-                        // Create new group
-                        g = new GroupInfo(Util.getSecretBytes(16));
-                        g.members.add(m.getUsername());
-                        System.out.println("Creating new group \"" + Base64.encodeBytes(g.groupId) + "\" …");
+                        groupId = decodeGroupId(ns.getString("group"));

                     }
                     }

-
-                    String name = ns.getString("name");
-                    if (name != null) {
-                        g.name = name;
-                    }
-
-                    final List<String> members = ns.getList("member");
-
-                    if (members != null) {
-                        for (String member : members) {
-                            try {
-                                g.members.add(m.canonicalizeNumber(member));
-                            } catch (InvalidNumberException e) {
-                                System.err.println("Failed to add member \"" + member + "\" to group: " + e.getMessage());
-                                System.err.println("Aborting…");
-                                System.exit(1);
-                            }
-                        }
+                    byte[] newGroupId = m.sendUpdateGroupMessage(groupId, ns.getString("name"), ns.getList("member"), ns.getString("avatar"));
+                    if (groupId == null) {
+                        System.out.println("Creating new group \"" + Base64.encodeBytes(newGroupId) + "\" …");

                     }
                     }

-
-                    TextSecureGroup.Builder group = TextSecureGroup.newBuilder(TextSecureGroup.Type.UPDATE)
-                            .withId(g.groupId)
-                            .withName(g.name)
-                            .withMembers(new ArrayList<>(g.members));
-
-                    String avatar = ns.getString("avatar");
-                    if (avatar != null) {
-                        try {
-                            group.withAvatar(createAttachment(avatar));
-                            // TODO
-                            g.avatarId = 0;
-                        } catch (IOException e) {
-                            System.err.println("Failed to add attachment \"" + avatar + "\": " + e.getMessage());
-                            System.err.println("Aborting sending.");
-                            System.exit(1);
-                        }
-                    }
-
-                    m.setGroupInfo(g);
-
-                    sendUpdateGroupMessage(m, group.build());

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

-                    System.err.println("Failed to send to group \"" + ns.getString("group") + "\": " + e.getMessage());
+                    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);

                 }
 
                 break;
                 }
 
                 break;


@@ -264,24 +216,21 @@ public class Main {
         System.exit(0);
     }
 
         System.exit(0);
     }
 

-    private static List<TextSecureAttachment> getTextSecureAttachments(List<String> attachments) {
-    private static List<TextSecureAttachment> getTextSecureAttachments(List<String> attachments) throws IOException {
-        List<TextSecureAttachment> textSecureAttachments = null;
-        if (attachments != null) {
-            textSecureAttachments = new ArrayList<>(attachments.size());
-            for (String attachment : attachments) {
-                textSecureAttachments.add(createAttachment(attachment));
-             }
-        }
-        return textSecureAttachments;
+    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 TextSecureAttachmentStream createAttachment(String attachment) throws IOException {
-        File attachmentFile = new File(attachment);
-        InputStream attachmentStream = new FileInputStream(attachmentFile);
-        final long attachmentSize = attachmentFile.length();
-        String mime = Files.probeContentType(Paths.get(attachment));
-        return new TextSecureAttachmentStream(attachmentStream, mime, attachmentSize, null);
+    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;
+        }

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


@@ -369,73 +318,28 @@ public class Main {
         }
     }
 
         }
     }
 

-    private static void sendMessage(Manager m, String messageText, List<TextSecureAttachment> textSecureAttachments,
-                                    List<String> recipients, byte[] groupId) {
-        final TextSecureDataMessage.Builder messageBuilder = TextSecureDataMessage.newBuilder().withBody(messageText);
-        if (textSecureAttachments != null) {
-            messageBuilder.withAttachments(textSecureAttachments);
-        }
-        if (groupId != null) {
-            messageBuilder.asGroupMessage(new TextSecureGroup(groupId));
-        }
-        TextSecureDataMessage message = messageBuilder.build();
-
-        sendMessage(m, message, recipients);
+    private static void handleAssertionError(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 sendEndSessionMessage(Manager m, List<String> recipients) {
-        final TextSecureDataMessage.Builder messageBuilder = TextSecureDataMessage.newBuilder().asEndSessionMessage();
-
-        TextSecureDataMessage message = messageBuilder.build();
-
-        sendMessage(m, message, recipients);
-    }
-
-    private static void sendQuitGroupMessage(Manager m, List<String> recipients, byte[] groupId) {
-        final TextSecureDataMessage.Builder messageBuilder = TextSecureDataMessage.newBuilder();
-        TextSecureGroup group = TextSecureGroup.newBuilder(TextSecureGroup.Type.QUIT)
-                .withId(groupId)
-                .build();
-
-        messageBuilder.asGroupMessage(group);
-
-        TextSecureDataMessage message = messageBuilder.build();
-
-        sendMessage(m, message, recipients);
-    }
-
-    private static void sendUpdateGroupMessage(Manager m, TextSecureGroup g) {
-        final TextSecureDataMessage.Builder messageBuilder = TextSecureDataMessage.newBuilder();
-
-        messageBuilder.asGroupMessage(g);
-
-        TextSecureDataMessage message = messageBuilder.build();
-
-        sendMessage(m, message, g.getMembers().get());
+    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 sendMessage(Manager m, TextSecureDataMessage message, List<String> recipients) {
-        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 handleIOException(IOException e) {
+        System.err.println("Failed to send message: " + e.getMessage());

     }
 
     private static class ReceiveMessageHandler implements Manager.ReceiveMessageHandler {
     }
 
     private static class ReceiveMessageHandler implements Manager.ReceiveMessageHandler {

diff --git a/src/main/java/cli/Manager.java b/src/main/java/cli/Manager.java
index cc81c14d74084ca55c90e46d1ca7d9643207ce02..730923ad99d59521bf19e273a8c55badad57d51f 100644 (file)
--- a/src/main/java/cli/Manager.java
+++ b/src/main/java/cli/Manager.java
@@ -44,6 +44,8 @@ import org.whispersystems.textsecure.api.util.InvalidNumberException;
 import org.whispersystems.textsecure.api.util.PhoneNumberFormatter;
 
 import java.io.*;
 import org.whispersystems.textsecure.api.util.PhoneNumberFormatter;
 
 import java.io.*;

+import java.nio.file.Files;
+import java.nio.file.Paths;

 import java.util.*;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 import java.util.*;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;


@@ -244,7 +246,132 @@ class Manager {
         accountManager.setPreKeys(axolotlStore.getIdentityKeyPair().getPublicKey(), lastResortKey, signedPreKeyRecord, oneTimePreKeys);
     }
 
         accountManager.setPreKeys(axolotlStore.getIdentityKeyPair().getPublicKey(), lastResortKey, signedPreKeyRecord, oneTimePreKeys);
     }
 

-    public void sendMessage(List<String> recipients, TextSecureDataMessage message)
+
+    private static List<TextSecureAttachment> getTextSecureAttachments(List<String> attachments) throws AttachmentInvalidException {
+        List<TextSecureAttachment> textSecureAttachments = null;
+        if (attachments != null) {
+            textSecureAttachments = new ArrayList<>(attachments.size());
+            for (String attachment : attachments) {
+                try {
+                    textSecureAttachments.add(createAttachment(attachment));
+                } catch (IOException e) {
+                    throw new AttachmentInvalidException(attachment, e);
+                }
+            }
+        }
+        return textSecureAttachments;
+    }
+
+    private static TextSecureAttachmentStream createAttachment(String attachment) throws IOException {
+        File attachmentFile = new File(attachment);
+        InputStream attachmentStream = new FileInputStream(attachmentFile);
+        final long attachmentSize = attachmentFile.length();
+        String mime = Files.probeContentType(Paths.get(attachment));
+        return new TextSecureAttachmentStream(attachmentStream, mime, attachmentSize, null);
+    }
+
+    public void sendGroupMessage(String messageText, List<String> attachments,
+                                 byte[] groupId)
+            throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
+        final TextSecureDataMessage.Builder messageBuilder = TextSecureDataMessage.newBuilder().withBody(messageText);
+        if (attachments != null) {
+            messageBuilder.withAttachments(getTextSecureAttachments(attachments));
+        }
+        if (groupId != null) {
+            TextSecureGroup group = TextSecureGroup.newBuilder(TextSecureGroup.Type.DELIVER)
+                    .withId(groupId)
+                    .build();
+            messageBuilder.asGroupMessage(group);
+        }
+        TextSecureDataMessage message = messageBuilder.build();
+
+        sendMessage(message, getGroupInfo(groupId).members);
+    }
+
+    public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions {
+        TextSecureGroup group = TextSecureGroup.newBuilder(TextSecureGroup.Type.QUIT)
+                .withId(groupId)
+                .build();
+
+        TextSecureDataMessage message = TextSecureDataMessage.newBuilder()
+                .asGroupMessage(group)
+                .build();
+
+        sendMessage(message, getGroupInfo(groupId).members);
+    }
+
+    public byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<String> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
+        GroupInfo g;
+        if (groupId == null) {
+            // Create new group
+            g = new GroupInfo(Util.getSecretBytes(16));
+            g.members.add(getUsername());
+        } else {
+            g = getGroupInfo(groupId);
+        }
+
+        if (name != null) {
+            g.name = name;
+        }
+
+        if (members != null) {
+            for (String member : members) {
+                try {
+                    g.members.add(canonicalizeNumber(member));
+                } catch (InvalidNumberException e) {
+                    System.err.println("Failed to add member \"" + member + "\" to group: " + e.getMessage());
+                    System.err.println("Aborting…");
+                    System.exit(1);
+                }
+            }
+        }
+
+        TextSecureGroup.Builder group = TextSecureGroup.newBuilder(TextSecureGroup.Type.UPDATE)
+                .withId(g.groupId)
+                .withName(g.name)
+                .withMembers(new ArrayList<>(g.members));
+
+        if (avatarFile != null) {
+            try {
+                group.withAvatar(createAttachment(avatarFile));
+                // TODO
+                g.avatarId = 0;
+            } catch (IOException e) {
+                throw new AttachmentInvalidException(avatarFile, e);
+            }
+        }
+
+        setGroupInfo(g);
+
+        TextSecureDataMessage message = TextSecureDataMessage.newBuilder()
+                .asGroupMessage(group.build())
+                .build();
+
+        sendMessage(message, g.members);
+        return g.groupId;
+    }
+
+    public void sendMessage(String messageText, List<String> attachments,
+                            Collection<String> recipients)
+            throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
+        final TextSecureDataMessage.Builder messageBuilder = TextSecureDataMessage.newBuilder().withBody(messageText);
+        if (attachments != null) {
+            messageBuilder.withAttachments(getTextSecureAttachments(attachments));
+        }
+        TextSecureDataMessage message = messageBuilder.build();
+
+        sendMessage(message, recipients);
+    }
+
+    public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions {
+        TextSecureDataMessage message = TextSecureDataMessage.newBuilder()
+                .asEndSessionMessage()
+                .build();
+
+        sendMessage(message, recipients);
+    }
+
+    private void sendMessage(TextSecureDataMessage message, Collection<String> recipients)

             throws IOException, EncapsulatedExceptions {
         TextSecureMessageSender messageSender = new TextSecureMessageSender(URL, TRUST_STORE, username, password,
                 axolotlStore, USER_AGENT, Optional.<TextSecureMessageSender.EventListener>absent());
             throws IOException, EncapsulatedExceptions {
         TextSecureMessageSender messageSender = new TextSecureMessageSender(URL, TRUST_STORE, username, password,
                 axolotlStore, USER_AGENT, Optional.<TextSecureMessageSender.EventListener>absent());


@@ -310,8 +437,9 @@ class Manager {
                                     TextSecureGroup groupInfo = message.getGroupInfo().get();
                                     switch (groupInfo.getType()) {
                                         case UPDATE:
                                     TextSecureGroup groupInfo = message.getGroupInfo().get();
                                     switch (groupInfo.getType()) {
                                         case UPDATE:

-                                            group = groupStore.getGroup(groupInfo.getGroupId());
-                                            if (group == null) {
+                                            try {
+                                                group = groupStore.getGroup(groupInfo.getGroupId());
+                                            } catch (GroupNotFoundException e) {

                                                 group = new GroupInfo(groupInfo.getGroupId());
                                             }
 
                                                 group = new GroupInfo(groupInfo.getGroupId());
                                             }
 


@@ -339,12 +467,16 @@ class Manager {
                                             groupStore.updateGroup(group);
                                             break;
                                         case DELIVER:
                                             groupStore.updateGroup(group);
                                             break;
                                         case DELIVER:

-                                            group = groupStore.getGroup(groupInfo.getGroupId());
+                                            try {
+                                                group = groupStore.getGroup(groupInfo.getGroupId());
+                                            } catch (GroupNotFoundException e) {
+                                            }

                                             break;
                                         case QUIT:
                                             break;
                                         case QUIT:

-                                            group = groupStore.getGroup(groupInfo.getGroupId());
-                                            if (group != null) {
+                                            try {
+                                                group = groupStore.getGroup(groupInfo.getGroupId());

                                                 group.members.remove(envelope.getSource());
                                                 group.members.remove(envelope.getSource());

+                                            } catch (GroupNotFoundException e) {

                                             }
                                             break;
                                     }
                                             }
                                             break;
                                     }


@@ -442,7 +574,7 @@ class Manager {
         return new TextSecureAddress(e164number);
     }
 
         return new TextSecureAddress(e164number);
     }
 

-    public GroupInfo getGroupInfo(byte[] groupId) {
+    public GroupInfo getGroupInfo(byte[] groupId) throws GroupNotFoundException {

         return groupStore.getGroup(groupId);
     }
 
         return groupStore.getGroup(groupId);
     }