Implement a sticker store

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

diff --git a/src/main/java/org/asamk/signal/manager/Manager.java b/src/main/java/org/asamk/signal/manager/Manager.java
index 99b0d82a2d92fa4f5e41bebe60a21b6015d90ae3..56376f0e8bdab689346cfc0895cb329fd7cbb4a1 100644 (file)
--- a/src/main/java/org/asamk/signal/manager/Manager.java
+++ b/src/main/java/org/asamk/signal/manager/Manager.java
@@ -18,20 +18,15 @@ package org.asamk.signal.manager;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 

-import org.asamk.Signal;
-import org.asamk.signal.AttachmentInvalidException;
-import org.asamk.signal.GroupNotFoundException;
-import org.asamk.signal.JsonStickerPack;
-import org.asamk.signal.NotAGroupMemberException;
-import org.asamk.signal.StickerPackInvalidException;
-import org.asamk.signal.TrustLevel;
-import org.asamk.signal.UserAlreadyExists;

 import org.asamk.signal.storage.SignalAccount;
 import org.asamk.signal.storage.contacts.ContactInfo;
 import org.asamk.signal.storage.groups.GroupInfo;
 import org.asamk.signal.storage.SignalAccount;
 import org.asamk.signal.storage.contacts.ContactInfo;
 import org.asamk.signal.storage.groups.GroupInfo;

-import org.asamk.signal.storage.groups.JsonGroupStore;
+import org.asamk.signal.storage.groups.GroupInfoV1;
+import org.asamk.signal.storage.groups.GroupInfoV2;
+import org.asamk.signal.storage.profiles.SignalProfile;
+import org.asamk.signal.storage.profiles.SignalProfileEntry;

 import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;
 import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;

-import org.asamk.signal.storage.threads.ThreadInfo;
+import org.asamk.signal.storage.stickers.Sticker;

 import org.asamk.signal.util.IOUtils;
 import org.asamk.signal.util.Util;
 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
 import org.asamk.signal.util.IOUtils;
 import org.asamk.signal.util.Util;
 import org.signal.libsignal.metadata.InvalidMetadataMessageException;


@@ -46,8 +41,14 @@ import org.signal.libsignal.metadata.ProtocolNoSessionException;
 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
 import org.signal.libsignal.metadata.SelfSendException;
 import org.signal.libsignal.metadata.certificate.InvalidCertificateException;
 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
 import org.signal.libsignal.metadata.SelfSendException;
 import org.signal.libsignal.metadata.certificate.InvalidCertificateException;

+import org.signal.storageservice.protos.groups.local.DecryptedGroup;
+import org.signal.storageservice.protos.groups.local.DecryptedMember;

 import org.signal.zkgroup.InvalidInputException;
 import org.signal.zkgroup.VerificationFailedException;
 import org.signal.zkgroup.InvalidInputException;
 import org.signal.zkgroup.VerificationFailedException;

+import org.signal.zkgroup.auth.AuthCredentialResponse;
+import org.signal.zkgroup.groups.GroupMasterKey;
+import org.signal.zkgroup.groups.GroupSecretParams;
+import org.signal.zkgroup.profiles.ClientZkProfileOperations;

 import org.signal.zkgroup.profiles.ProfileKey;
 import org.whispersystems.libsignal.IdentityKey;
 import org.whispersystems.libsignal.IdentityKeyPair;
 import org.signal.zkgroup.profiles.ProfileKey;
 import org.whispersystems.libsignal.IdentityKey;
 import org.whispersystems.libsignal.IdentityKeyPair;


@@ -73,14 +74,22 @@ import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;

+import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
+import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
+import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
+import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
+import org.whispersystems.signalservice.api.groupsv2.InvalidGroupStateException;

 import org.whispersystems.signalservice.api.messages.SendMessageResult;
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 import org.whispersystems.signalservice.api.messages.SendMessageResult;
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;

+import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;

 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;

+import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
+import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;

 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;


@@ -95,23 +104,26 @@ import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;

+import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;

 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 import org.whispersystems.signalservice.api.push.SignalServiceAddress;

-import org.whispersystems.signalservice.api.push.exceptions.AuthorizationFailedException;
-import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
-import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
-import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
+import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;

 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 import org.whispersystems.signalservice.api.util.SleepTimer;
 import org.whispersystems.signalservice.api.util.StreamDetails;
 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 import org.whispersystems.signalservice.api.util.SleepTimer;
 import org.whispersystems.signalservice.api.util.StreamDetails;
 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;

+import org.whispersystems.signalservice.api.util.UuidUtil;
+import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;

 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;

+import org.whispersystems.signalservice.internal.push.VerifyAccountResponse;
+import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;

 import org.whispersystems.signalservice.internal.util.Hex;
 import org.whispersystems.util.Base64;
 
 import org.whispersystems.signalservice.internal.util.Hex;
 import org.whispersystems.util.Base64;
 

+import java.io.Closeable;

 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;


@@ -122,6 +134,7 @@ import java.io.OutputStream;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URLEncoder;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URLEncoder;

+import java.nio.charset.StandardCharsets;

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


@@ -130,57 +143,70 @@ import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Date;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Date;

+import java.util.HashMap;

 import java.util.HashSet;
 import java.util.HashSet;

-import java.util.LinkedList;

 import java.util.List;
 import java.util.Locale;
 import java.util.List;
 import java.util.Locale;

-import java.util.Map;

 import java.util.Objects;
 import java.util.Set;
 import java.util.Objects;
 import java.util.Set;

+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;

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

+import java.util.stream.Collectors;

 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 

-public class Manager implements Signal {
+import static org.asamk.signal.manager.ServiceConfig.capabilities;

 
 

-    private static final SignalServiceProfile.Capabilities capabilities = new SignalServiceProfile.Capabilities(false, false);
+public class Manager implements Closeable {

 
 

-    private final String settingsPath;
-    private final String dataPath;
-    private final String attachmentsPath;
-    private final String avatarsPath;

     private final SleepTimer timer = new UptimeSleepTimer();
     private final SleepTimer timer = new UptimeSleepTimer();

+    private final SignalServiceConfiguration serviceConfiguration;
+    private final String userAgent;

 
 

-    private SignalAccount account;
-    private String username;
+    private final SignalAccount account;
+    private final PathConfig pathConfig;

     private SignalServiceAccountManager accountManager;
     private SignalServiceAccountManager accountManager;

+    private GroupsV2Api groupsV2Api;

     private SignalServiceMessagePipe messagePipe = null;
     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
     private SignalServiceMessagePipe messagePipe = null;
     private SignalServiceMessagePipe unidentifiedMessagePipe = null;

+    private final boolean discoverableByPhoneNumber = true;

 
 

-    public Manager(String username, String settingsPath) {
-        this.username = username;
-        this.settingsPath = settingsPath;
-        this.dataPath = this.settingsPath + "/data";
-        this.attachmentsPath = this.settingsPath + "/attachments";
-        this.avatarsPath = this.settingsPath + "/avatars";
+    public Manager(SignalAccount account, PathConfig pathConfig, SignalServiceConfiguration serviceConfiguration, String userAgent) {
+        this.account = account;
+        this.pathConfig = pathConfig;
+        this.serviceConfiguration = serviceConfiguration;
+        this.userAgent = userAgent;
+        this.accountManager = createSignalServiceAccountManager();
+        this.groupsV2Api = accountManager.getGroupsV2Api();

 
 

+        this.account.setResolver(this::resolveSignalServiceAddress);

     }
 
     public String getUsername() {
     }
 
     public String getUsername() {

-        return username;
+        return account.getUsername();

     }
 
     }
 

-    private SignalServiceAddress getSelfAddress() {
-        return new SignalServiceAddress(null, username);
+    public SignalServiceAddress getSelfAddress() {
+        return account.getSelfAddress();

     }
 
     }
 

-    private SignalServiceAccountManager getSignalServiceAccountManager() {
-        return new SignalServiceAccountManager(BaseConfig.serviceConfiguration, null, account.getUsername(), account.getPassword(), account.getDeviceId(), BaseConfig.USER_AGENT, timer);
+    private SignalServiceAccountManager createSignalServiceAccountManager() {
+        GroupsV2Operations groupsV2Operations = capabilities.isGv2()
+                ? new GroupsV2Operations(ClientZkOperations.create(serviceConfiguration))
+                : null;
+
+        return new SignalServiceAccountManager(serviceConfiguration,
+                new DynamicCredentialsProvider(account.getUuid(), account.getUsername(), account.getPassword(), null, account.getDeviceId()),
+                userAgent,
+                groupsV2Operations,
+                timer);

     }
 
     }
 

-    private IdentityKey getIdentity() {
-        return account.getSignalProtocolStore().getIdentityKeyPair().getPublicKey();
+    private IdentityKeyPair getIdentityKeyPair() {
+        return account.getSignalProtocolStore().getIdentityKeyPair();

     }
 
     public int getDeviceId() {
     }
 
     public int getDeviceId() {


@@ -188,10 +214,14 @@ public class Manager implements Signal {
     }
 
     private String getMessageCachePath() {
     }
 
     private String getMessageCachePath() {

-        return this.dataPath + "/" + username + ".d/msg-cache";
+        return pathConfig.getDataPath() + "/" + account.getUsername() + ".d/msg-cache";

     }
 
     private String getMessageCachePath(String sender) {
     }
 
     private String getMessageCachePath(String sender) {

+        if (sender == null || sender.isEmpty()) {
+            return getMessageCachePath();
+        }
+

         return getMessageCachePath() + "/" + sender.replace("/", "_");
     }
 
         return getMessageCachePath() + "/" + sender.replace("/", "_");
     }
 


@@ -201,83 +231,82 @@ public class Manager implements Signal {
         return new File(cachePath + "/" + now + "_" + timestamp);
     }
 
         return new File(cachePath + "/" + now + "_" + timestamp);
     }
 

-    public boolean userHasKeys() {
-        return account != null && account.getSignalProtocolStore() != null;
-    }
+    public static Manager init(String username, String settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent) throws IOException {
+        PathConfig pathConfig = PathConfig.createDefault(settingsPath);

 
 

-    public void init() throws IOException {
-        if (!SignalAccount.userExists(dataPath, username)) {
-            return;
-        }
-        account = SignalAccount.load(dataPath, username);
+        if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
+            IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
+            int registrationId = KeyHelper.generateRegistrationId(false);

 
 

-        migrateLegacyConfigs();
+            ProfileKey profileKey = KeyUtils.createProfileKey();
+            SignalAccount account = SignalAccount.create(pathConfig.getDataPath(), username, identityKey, registrationId, profileKey);
+            account.save();

 
 

-        accountManager = getSignalServiceAccountManager();
-        try {
-            if (account.isRegistered() && accountManager.getPreKeysCount() < BaseConfig.PREKEY_MINIMUM_COUNT) {
-                refreshPreKeys();
-                account.save();
-            }
-        } catch (AuthorizationFailedException e) {
-            System.err.println("Authorization failed, was the number registered elsewhere?");
-            throw e;
+            return new Manager(account, pathConfig, serviceConfiguration, userAgent);

         }
         }

+
+        SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
+
+        Manager m = new Manager(account, pathConfig, serviceConfiguration, userAgent);
+
+        m.migrateLegacyConfigs();
+        m.updateAccountAttributes();
+
+        return m;

     }
 
     private void migrateLegacyConfigs() {
     }
 
     private void migrateLegacyConfigs() {

-        // Copy group avatars that were previously stored in the attachments folder
-        // to the new avatar folder
-        if (JsonGroupStore.groupsWithLegacyAvatarId.size() > 0) {
-            for (GroupInfo g : JsonGroupStore.groupsWithLegacyAvatarId) {
-                File avatarFile = getGroupAvatarFile(g.groupId);
-                File attachmentFile = getAttachmentFile(g.getAvatarId());
-                if (!avatarFile.exists() && attachmentFile.exists()) {
-                    try {
-                        IOUtils.createPrivateDirectories(avatarsPath);
-                        Files.copy(attachmentFile.toPath(), avatarFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
-                    } catch (Exception e) {
-                        // Ignore
-                    }
-                }
-            }
-            JsonGroupStore.groupsWithLegacyAvatarId.clear();
-            account.save();
-        }

         if (account.getProfileKey() == null) {
             // Old config file, creating new profile key
             account.setProfileKey(KeyUtils.createProfileKey());
             account.save();
         }
         if (account.getProfileKey() == null) {
             // Old config file, creating new profile key
             account.setProfileKey(KeyUtils.createProfileKey());
             account.save();
         }

+        // Store profile keys only in profile store
+        for (ContactInfo contact : account.getContactStore().getContacts()) {
+            String profileKeyString = contact.profileKey;
+            if (profileKeyString == null) {
+                continue;
+            }
+            final ProfileKey profileKey;
+            try {
+                profileKey = new ProfileKey(Base64.decode(profileKeyString));
+            } catch (InvalidInputException | IOException e) {
+                continue;
+            }
+            contact.profileKey = null;
+            account.getProfileStore().storeProfileKey(contact.getAddress(), profileKey);
+        }

     }
 
     }
 

-    private void createNewIdentity() throws IOException {
-        IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
-        int registrationId = KeyHelper.generateRegistrationId(false);
-        if (username == null) {
-            account = SignalAccount.createTemporaryAccount(identityKey, registrationId);
-        } else {
-            ProfileKey profileKey = KeyUtils.createProfileKey();
-            account = SignalAccount.create(dataPath, username, identityKey, registrationId, profileKey);
-            account.save();
+    public void checkAccountState() throws IOException {
+        if (account.isRegistered()) {
+            if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
+                refreshPreKeys();
+                account.save();
+            }
+            if (account.getUuid() == null) {
+                account.setUuid(accountManager.getOwnUuid());
+                account.save();
+            }

         }
     }
 
     public boolean isRegistered() {
         }
     }
 
     public boolean isRegistered() {

-        return account != null && account.isRegistered();
+        return account.isRegistered();

     }
 
     }
 

-    public void register(boolean voiceVerification) throws IOException {
-        if (account == null) {
-            createNewIdentity();
-        }
+    public void register(boolean voiceVerification, String captcha) throws IOException {

         account.setPassword(KeyUtils.createPassword());
         account.setPassword(KeyUtils.createPassword());

-        accountManager = getSignalServiceAccountManager();
+
+        // Resetting UUID, because registering doesn't work otherwise
+        account.setUuid(null);
+        accountManager = createSignalServiceAccountManager();
+        this.groupsV2Api = accountManager.getGroupsV2Api();

 
         if (voiceVerification) {
 
         if (voiceVerification) {

-            accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.absent(), Optional.absent());
+            accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.fromNullable(captcha), Optional.absent());

         } else {
         } else {

-            accountManager.requestSmsVerificationCode(false, Optional.absent(), Optional.absent());
+            accountManager.requestSmsVerificationCode(false, Optional.fromNullable(captcha), Optional.absent());

         }
 
         account.setRegistered(false);
         }
 
         account.setRegistered(false);


@@ -285,21 +314,13 @@ public class Manager implements Signal {
     }
 
     public void updateAccountAttributes() throws IOException {
     }
 
     public void updateAccountAttributes() throws IOException {

-        accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false, capabilities);
-    }
-
-    public void setProfileName(String name) throws IOException {
-        accountManager.setProfileName(account.getProfileKey(), name);
+        accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);

     }
 
     }
 

-    public void setProfileAvatar(File avatar) throws IOException {
-        final StreamDetails streamDetails = Utils.createStreamDetailsFromFile(avatar);
-        accountManager.setProfileAvatar(account.getProfileKey(), streamDetails);
-        streamDetails.getStream().close();
-    }
-
-    public void removeProfileAvatar() throws IOException {
-        accountManager.setProfileAvatar(account.getProfileKey(), null);
+    public void setProfile(String name, File avatar) throws IOException {
+        try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
+            accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
+        }

     }
 
     public void unregister() throws IOException {
     }
 
     public void unregister() throws IOException {


@@ -312,51 +333,6 @@ public class Manager implements Signal {
         account.save();
     }
 
         account.save();
     }
 

-    public String getDeviceLinkUri() throws TimeoutException, IOException {
-        if (account == null) {
-            createNewIdentity();
-        }
-        account.setPassword(KeyUtils.createPassword());
-        accountManager = getSignalServiceAccountManager();
-        String uuid = accountManager.getNewDeviceUuid();
-
-        return Utils.createDeviceLinkUri(new Utils.DeviceLinkInfo(uuid, getIdentity().getPublicKey()));
-    }
-
-    public void finishDeviceLink(String deviceName) throws IOException, InvalidKeyException, TimeoutException, UserAlreadyExists {
-        account.setSignalingKey(KeyUtils.createSignalingKey());
-        SignalServiceAccountManager.NewDeviceRegistrationReturn ret = accountManager.finishNewDeviceRegistration(account.getSignalProtocolStore().getIdentityKeyPair(), account.getSignalingKey(), false, true, account.getSignalProtocolStore().getLocalRegistrationId(), deviceName);
-
-        username = ret.getNumber();
-        // TODO do this check before actually registering
-        if (SignalAccount.userExists(dataPath, username)) {
-            throw new UserAlreadyExists(username, SignalAccount.getFileName(dataPath, username));
-        }
-
-        // Create new account with the synced identity
-        byte[] profileKeyBytes = ret.getProfileKey();
-        ProfileKey profileKey;
-        if (profileKeyBytes == null) {
-            profileKey = KeyUtils.createProfileKey();
-        } else {
-            try {
-                profileKey = new ProfileKey(profileKeyBytes);
-            } catch (InvalidInputException e) {
-                throw new IOException("Received invalid profileKey", e);
-            }
-        }
-        account = SignalAccount.createLinkedAccount(dataPath, username, account.getPassword(), ret.getDeviceId(), ret.getIdentity(), account.getSignalProtocolStore().getLocalRegistrationId(), account.getSignalingKey(), profileKey);
-
-        refreshPreKeys();
-
-        requestSyncGroups();
-        requestSyncContacts();
-        requestSyncBlocked();
-        requestSyncConfiguration();
-
-        account.save();
-    }
-

     public List<DeviceInfo> getLinkedDevices() throws IOException {
         List<DeviceInfo> devices = accountManager.getDevices();
         account.setMultiDevice(devices.size() > 1);
     public List<DeviceInfo> getLinkedDevices() throws IOException {
         List<DeviceInfo> devices = accountManager.getDevices();
         account.setMultiDevice(devices.size() > 1);


@@ -378,7 +354,7 @@ public class Manager implements Signal {
     }
 
     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
     }
 
     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {

-        IdentityKeyPair identityKeyPair = account.getSignalProtocolStore().getIdentityKeyPair();
+        IdentityKeyPair identityKeyPair = getIdentityKeyPair();

         String verificationCode = accountManager.getNewDeviceVerificationCode();
 
         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey().serialize()), verificationCode);
         String verificationCode = accountManager.getNewDeviceVerificationCode();
 
         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey().serialize()), verificationCode);


@@ -387,10 +363,10 @@ public class Manager implements Signal {
     }
 
     private List<PreKeyRecord> generatePreKeys() {
     }
 
     private List<PreKeyRecord> generatePreKeys() {

-        List<PreKeyRecord> records = new ArrayList<>(BaseConfig.PREKEY_BATCH_SIZE);
+        List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);

 
         final int offset = account.getPreKeyIdOffset();
 
         final int offset = account.getPreKeyIdOffset();

-        for (int i = 0; i < BaseConfig.PREKEY_BATCH_SIZE; i++) {
+        for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {

             int preKeyId = (offset + i) % Medium.MAX_VALUE;
             ECKeyPair keyPair = Curve.generateKeyPair();
             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
             int preKeyId = (offset + i) % Medium.MAX_VALUE;
             ECKeyPair keyPair = Curve.generateKeyPair();
             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);


@@ -423,11 +399,15 @@ public class Manager implements Signal {
         verificationCode = verificationCode.replace("-", "");
         account.setSignalingKey(KeyUtils.createSignalingKey());
         // TODO make unrestricted unidentified access configurable
         verificationCode = verificationCode.replace("-", "");
         account.setSignalingKey(KeyUtils.createSignalingKey());
         // TODO make unrestricted unidentified access configurable

-        accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false, capabilities);
+        VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);

 
 

+        UUID uuid = UuidUtil.parseOrNull(response.getUuid());
+        // TODO response.isStorageCapable()

         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
         account.setRegistered(true);
         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
         account.setRegistered(true);

+        account.setUuid(uuid);

         account.setRegistrationLockPin(pin);
         account.setRegistrationLockPin(pin);

+        account.getSignalProtocolStore().saveIdentity(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), TrustLevel.TRUSTED_VERIFIED);

 
         refreshPreKeys();
         account.save();
 
         refreshPreKeys();
         account.save();


@@ -439,44 +419,87 @@ public class Manager implements Signal {
             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
         } else {
             account.setRegistrationLockPin(null);
             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
         } else {
             account.setRegistrationLockPin(null);

-            accountManager.removeV1Pin();
+            accountManager.removeRegistrationLockV1();

         }
         account.save();
     }
 
         }
         account.save();
     }
 

-    private void refreshPreKeys() throws IOException {
+    void refreshPreKeys() throws IOException {

         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();

-        final IdentityKeyPair identityKeyPair = account.getSignalProtocolStore().getIdentityKeyPair();
+        final IdentityKeyPair identityKeyPair = getIdentityKeyPair();

         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 
         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 

-        accountManager.setPreKeys(getIdentity(), signedPreKeyRecord, oneTimePreKeys);
+        accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);

     }
 
     private SignalServiceMessageReceiver getMessageReceiver() {
     }
 
     private SignalServiceMessageReceiver getMessageReceiver() {

-        return new SignalServiceMessageReceiver(BaseConfig.serviceConfiguration, null, username, account.getPassword(), account.getDeviceId(), account.getSignalingKey(), BaseConfig.USER_AGENT, null, timer);
+        final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2()
+                ? ClientZkOperations.create(serviceConfiguration).getProfileOperations()
+                : null;
+        return new SignalServiceMessageReceiver(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(), account.getDeviceId(), account.getSignalingKey(), userAgent, null, timer, clientZkProfileOperations);

     }
 
     private SignalServiceMessageSender getMessageSender() {
     }
 
     private SignalServiceMessageSender getMessageSender() {

-        return new SignalServiceMessageSender(BaseConfig.serviceConfiguration, null, username, account.getPassword(),
-                account.getDeviceId(), account.getSignalProtocolStore(), BaseConfig.USER_AGENT, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.absent());
+        final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2()
+                ? ClientZkOperations.create(serviceConfiguration).getProfileOperations()
+                : null;
+        final ExecutorService executor = null;
+        return new SignalServiceMessageSender(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(),
+                account.getDeviceId(), account.getSignalProtocolStore(), userAgent, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.absent(), clientZkProfileOperations, executor, ServiceConfig.MAX_ENVELOPE_SIZE);

     }
 
     }
 

-    private SignalServiceProfile getRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess) throws IOException {
+    private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess) throws IOException {

         SignalServiceMessagePipe pipe = unidentifiedMessagePipe != null && unidentifiedAccess.isPresent() ? unidentifiedMessagePipe
                 : messagePipe;
 
         if (pipe != null) {
             try {
         SignalServiceMessagePipe pipe = unidentifiedMessagePipe != null && unidentifiedAccess.isPresent() ? unidentifiedMessagePipe
                 : messagePipe;
 
         if (pipe != null) {
             try {

-                return pipe.getProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).getProfile();
-            } catch (IOException ignored) {
+                return pipe.getProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
+            } catch (IOException | InterruptedException | ExecutionException | TimeoutException ignored) {

             }
         }
 
         SignalServiceMessageReceiver receiver = getMessageReceiver();
         try {
             }
         }
 
         SignalServiceMessageReceiver receiver = getMessageReceiver();
         try {

-            return receiver.retrieveProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).getProfile();
-        } catch (VerificationFailedException e) {
-            throw new AssertionError(e);
+            return receiver.retrieveProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
+        } catch (InterruptedException | ExecutionException | TimeoutException e) {
+            throw new IOException("Failed to retrieve profile", e);
+        }
+    }
+
+    private SignalProfile getRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
+        SignalProfileEntry profileEntry = account.getProfileStore().getProfile(address);
+        long now = new Date().getTime();
+        // Profiles are cache for 24h before retrieving them again
+        if (profileEntry == null || profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000) {
+            SignalProfile profile = retrieveRecipientProfile(address, unidentifiedAccess, profileKey);
+            account.getProfileStore().updateProfile(address, profileKey, now, profile);
+            return profile;
+        }
+        return profileEntry.getProfile();
+    }
+
+    private SignalProfile retrieveRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
+        final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address, unidentifiedAccess);
+
+        File avatarFile = null;
+        try {
+            avatarFile = encryptedProfile.getAvatar() == null ? null : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
+        } catch (Throwable e) {
+            System.err.println("Failed to retrieve profile avatar, ignoring: " + e.getMessage());
+        }
+
+        ProfileCipher profileCipher = new ProfileCipher(profileKey);
+        try {
+            return new SignalProfile(
+                    encryptedProfile.getIdentityKey(),
+                    encryptedProfile.getName() == null ? null : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName()))),
+                    avatarFile,
+                    encryptedProfile.getUnidentifiedAccess() == null || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess())) ? null : encryptedProfile.getUnidentifiedAccess(),
+                    encryptedProfile.isUnrestrictedUnidentifiedAccess(),
+                    encryptedProfile.getCapabilities());
+        } catch (InvalidCiphertextException e) {
+            return null;

         }
     }
 
         }
     }
 


@@ -503,66 +526,62 @@ public class Manager implements Signal {
         if (g == null) {
             throw new GroupNotFoundException(groupId);
         }
         if (g == null) {
             throw new GroupNotFoundException(groupId);
         }

-        for (String member : g.members) {
-            if (member.equals(this.username)) {
-                return g;
-            }
+        if (!g.isMember(account.getSelfAddress())) {
+            throw new NotAGroupMemberException(groupId, g.getTitle());

         }
         }

-        throw new NotAGroupMemberException(groupId, g.name);
+        return g;

     }
 
     public List<GroupInfo> getGroups() {
         return account.getGroupStore().getGroups();
     }
 
     }
 
     public List<GroupInfo> getGroups() {
         return account.getGroupStore().getGroups();
     }
 

-    @Override
-    public void sendGroupMessage(String messageText, List<String> attachments,
-                                 byte[] groupId)
-            throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
+    public Pair<Long, List<SendMessageResult>> sendGroupMessage(
+            String messageText,
+            List<String> attachments,
+            byte[] groupId
+    )
+            throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {

         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
         if (attachments != null) {
             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
         }
         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
         if (attachments != null) {
             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
         }

-        if (groupId != null) {
-            SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
-                    .withId(groupId)
-                    .build();
-            messageBuilder.asGroupMessage(group);
-        }
-        ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(groupId));
-        if (thread != null) {
-            messageBuilder.withExpiration(thread.messageExpirationTime);
-        }

 
         final GroupInfo g = getGroupForSending(groupId);
 
 
         final GroupInfo g = getGroupForSending(groupId);
 

-        // Don't send group message to ourself
-        final List<String> membersSend = new ArrayList<>(g.members);
-        membersSend.remove(this.username);
-        sendMessageLegacy(messageBuilder, membersSend);
+        setGroupContext(messageBuilder, g);
+        messageBuilder.withExpiration(g.getMessageExpirationTime());
+
+        return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));

     }
 
     }
 

-    public void sendGroupMessageReaction(String emoji, boolean remove, SignalServiceAddress targetAuthor,
-                                         long targetSentTimestamp, byte[] groupId)
-            throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
-        SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, targetAuthor, targetSentTimestamp);
-        final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
-                .withReaction(reaction)
-                .withProfileKey(account.getProfileKey().serialize());
-        if (groupId != null) {
+    private void setGroupContext(final SignalServiceDataMessage.Builder messageBuilder, final GroupInfo groupInfo) {
+        if (groupInfo instanceof GroupInfoV1) {

             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)

-                    .withId(groupId)
+                    .withId(groupInfo.groupId)
+                    .build();
+            messageBuilder.asGroupMessage(group);
+        } else {
+            final GroupInfoV2 groupInfoV2 = (GroupInfoV2) groupInfo;
+            SignalServiceGroupV2 group = SignalServiceGroupV2.newBuilder(groupInfoV2.getMasterKey())
+                    .withRevision(groupInfoV2.getGroup() == null ? 0 : groupInfoV2.getGroup().getRevision())

                     .build();
             messageBuilder.asGroupMessage(group);
         }
                     .build();
             messageBuilder.asGroupMessage(group);
         }

+    }
+
+    public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(String emoji, boolean remove, String targetAuthor,
+                                                                        long targetSentTimestamp, byte[] groupId)
+            throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
+        SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
+        final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
+                .withReaction(reaction);

         final GroupInfo g = getGroupForSending(groupId);
         final GroupInfo g = getGroupForSending(groupId);

-        // Don't send group message to ourself
-        final List<String> membersSend = new ArrayList<>(g.members);
-        membersSend.remove(this.username);
-        sendMessageLegacy(messageBuilder, membersSend);
+        setGroupContext(messageBuilder, g);
+        return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));

     }
 
     }
 

-    public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions {
+    public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {

         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
                 .withId(groupId)
                 .build();
         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
                 .withId(groupId)
                 .build();


@@ -571,20 +590,29 @@ public class Manager implements Signal {
                 .asGroupMessage(group);
 
         final GroupInfo g = getGroupForSending(groupId);
                 .asGroupMessage(group);
 
         final GroupInfo g = getGroupForSending(groupId);

-        g.members.remove(this.username);
-        account.getGroupStore().updateGroup(g);
+        if (g instanceof GroupInfoV1) {
+            GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
+            groupInfoV1.removeMember(account.getSelfAddress());
+            account.getGroupStore().updateGroup(groupInfoV1);
+        } else {
+            throw new RuntimeException("TODO Not implemented!");
+        }

 
 

-        sendMessageLegacy(messageBuilder, g.members);
+        return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));

     }
 
     }
 

-    private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<String> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
-        GroupInfo g;
+    private Pair<byte[], List<SendMessageResult>> sendUpdateGroupMessage(byte[] groupId, String name, Collection<SignalServiceAddress> members, String avatarFile) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
+        GroupInfoV1 g;

         if (groupId == null) {
             // Create new group
         if (groupId == null) {
             // Create new group

-            g = new GroupInfo(KeyUtils.createGroupId());
-            g.members.add(username);
+            g = new GroupInfoV1(KeyUtils.createGroupId());
+            g.addMembers(Collections.singleton(account.getSelfAddress()));

         } else {
         } else {

-            g = getGroupForSending(groupId);
+            GroupInfo group = getGroupForSending(groupId);
+            if (!(group instanceof GroupInfoV1)) {
+                throw new RuntimeException("TODO Not implemented!");
+            }
+            g = (GroupInfoV1) group;

         }
 
         if (name != null) {
         }
 
         if (name != null) {


@@ -592,35 +620,28 @@ public class Manager implements Signal {
         }
 
         if (members != null) {
         }
 
         if (members != null) {

-            Set<String> newMembers = new HashSet<>();
-            for (String member : members) {
-                try {
-                    member = Utils.canonicalizeNumber(member, username);
-                } catch (InvalidNumberException e) {
-                    System.err.println("Failed to add member \"" + member + "\" to group: " + e.getMessage());
-                    System.err.println("Aborting…");
-                    System.exit(1);
-                }
-                if (g.members.contains(member)) {
+            final Set<String> newE164Members = new HashSet<>();
+            for (SignalServiceAddress member : members) {
+                if (g.isMember(member) || !member.getNumber().isPresent()) {

                     continue;
                 }
                     continue;
                 }

-                newMembers.add(member);
-                g.members.add(member);
+                newE164Members.add(member.getNumber().get());

             }
             }

-            final List<ContactTokenDetails> contacts = accountManager.getContacts(newMembers);
-            if (contacts.size() != newMembers.size()) {
+
+            final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
+            if (contacts.size() != newE164Members.size()) {

                 // Some of the new members are not registered on Signal
                 for (ContactTokenDetails contact : contacts) {
                 // Some of the new members are not registered on Signal
                 for (ContactTokenDetails contact : contacts) {

-                    newMembers.remove(contact.getNumber());
+                    newE164Members.remove(contact.getNumber());

                 }
                 }

-                System.err.println("Failed to add members " + Util.join(", ", newMembers) + " to group: Not registered on Signal");
-                System.err.println("Aborting…");
-                System.exit(1);
+                throw new IOException("Failed to add members " + Util.join(", ", newE164Members) + " to group: Not registered on Signal");

             }
             }

+
+            g.addMembers(members);

         }
 
         if (avatarFile != null) {
         }
 
         if (avatarFile != null) {

-            IOUtils.createPrivateDirectories(avatarsPath);
+            IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());

             File aFile = getGroupAvatarFile(g.groupId);
             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
         }
             File aFile = getGroupAvatarFile(g.groupId);
             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
         }


@@ -629,32 +650,29 @@ public class Manager implements Signal {
 
         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 
 
         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 

-        // Don't send group message to ourself
-        final List<String> membersSend = new ArrayList<>(g.members);
-        membersSend.remove(this.username);
-        sendMessageLegacy(messageBuilder, membersSend);
-        return g.groupId;
+        final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
+        return new Pair<>(g.groupId, result.second());

     }
 
     }
 

-    private void sendUpdateGroupMessage(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
-        if (groupId == null) {
-            return;
+    Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(byte[] groupId, SignalServiceAddress recipient) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
+        GroupInfoV1 g;
+        GroupInfo group = getGroupForSending(groupId);
+        if (!(group instanceof GroupInfoV1)) {
+            throw new RuntimeException("TODO Not implemented!");

         }
         }

-        GroupInfo g = getGroupForSending(groupId);
+        g = (GroupInfoV1) group;

 
 

-        if (!g.members.contains(recipient)) {
-            return;
+        if (!g.isMember(recipient)) {
+            throw new NotAGroupMemberException(groupId, g.name);

         }
 
         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 
         // Send group message only to the recipient who requested it
         }
 
         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 
         // Send group message only to the recipient who requested it

-        final List<String> membersSend = new ArrayList<>();
-        membersSend.add(recipient);
-        sendMessageLegacy(messageBuilder, membersSend);
+        return sendMessage(messageBuilder, Collections.singleton(recipient));

     }
 
     }
 

-    private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) {
+    private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {

         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
                 .withId(g.groupId)
                 .withName(g.name)
         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
                 .withId(g.groupId)
                 .withName(g.name)


@@ -669,51 +687,33 @@ public class Manager implements Signal {
             }
         }
 
             }
         }
 

-        SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
-                .asGroupMessage(group.build());
-
-        ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(g.groupId));
-        if (thread != null) {
-            messageBuilder.withExpiration(thread.messageExpirationTime);
-        }
-
-        return messageBuilder;
+        return SignalServiceDataMessage.newBuilder()
+                .asGroupMessage(group.build())
+                .withExpiration(g.messageExpirationTime);

     }
 
     }
 

-    private void sendGroupInfoRequest(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
-        if (groupId == null) {
-            return;
-        }
-
+    Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(byte[] groupId, SignalServiceAddress recipient) throws IOException {

         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
                 .withId(groupId);
 
         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
                 .asGroupMessage(group.build());
 
         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
                 .withId(groupId);
 
         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
                 .asGroupMessage(group.build());
 

-        ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(groupId));
-        if (thread != null) {
-            messageBuilder.withExpiration(thread.messageExpirationTime);
-        }
-

         // Send group info request message to the recipient who sent us a message with this groupId
         // Send group info request message to the recipient who sent us a message with this groupId

-        final List<String> membersSend = new ArrayList<>();
-        membersSend.add(recipient);
-        sendMessageLegacy(messageBuilder, membersSend);
+        return sendMessage(messageBuilder, Collections.singleton(recipient));

     }
 
     }
 

-    @Override
-    public void sendMessage(String message, List<String> attachments, String recipient)
-            throws EncapsulatedExceptions, AttachmentInvalidException, IOException {
-        List<String> recipients = new ArrayList<>(1);
-        recipients.add(recipient);
-        sendMessage(message, attachments, recipients);
+    void sendReceipt(SignalServiceAddress remoteAddress, long messageId) throws IOException, UntrustedIdentityException {
+        SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
+                Collections.singletonList(messageId),
+                System.currentTimeMillis());
+
+        getMessageSender().sendReceipt(remoteAddress, getAccessFor(remoteAddress), receiptMessage);

     }
 
     }
 

-    @Override
-    public void sendMessage(String messageText, List<String> attachments,
-                            List<String> recipients)
-            throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
+    public Pair<Long, List<SendMessageResult>> sendMessage(String messageText, List<String> attachments,
+                                                           List<String> recipients)
+            throws IOException, AttachmentInvalidException, InvalidNumberException {

         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
         if (attachments != null) {
             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
         if (attachments != null) {
             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);


@@ -731,32 +731,36 @@ public class Manager implements Signal {
 
             messageBuilder.withAttachments(attachmentPointers);
         }
 
             messageBuilder.withAttachments(attachmentPointers);
         }

-        messageBuilder.withProfileKey(account.getProfileKey().serialize());
-        sendMessageLegacy(messageBuilder, recipients);
+        return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));

     }
 
     }
 

-    public void sendMessageReaction(String emoji, boolean remove, SignalServiceAddress targetAuthor,
-                                    long targetSentTimestamp, List<String> recipients)
-            throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
-        SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, targetAuthor, targetSentTimestamp);
+    public Pair<Long, List<SendMessageResult>> sendMessageReaction(String emoji, boolean remove, String targetAuthor,
+                                                                   long targetSentTimestamp, List<String> recipients)
+            throws IOException, InvalidNumberException {
+        SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);

         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()

-                .withReaction(reaction)
-                .withProfileKey(account.getProfileKey().serialize());
-        sendMessageLegacy(messageBuilder, recipients);
+                .withReaction(reaction);
+        return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));

     }
 
     }
 

-    @Override
-    public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions {
+    public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {

         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
                 .asEndSessionMessage();
 
         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
                 .asEndSessionMessage();
 

-        sendMessageLegacy(messageBuilder, recipients);
+        final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
+        try {
+            return sendMessage(messageBuilder, signalServiceAddresses);
+        } catch (Exception e) {
+            for (SignalServiceAddress address : signalServiceAddresses) {
+                handleEndSession(address);
+            }
+            account.save();
+            throw e;
+        }

     }
 
     }
 

-    @Override

     public String getContactName(String number) throws InvalidNumberException {
     public String getContactName(String number) throws InvalidNumberException {

-        String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
-        ContactInfo contact = account.getContactStore().getContact(canonicalizedNumber);
+        ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));

         if (contact == null) {
             return "";
         } else {
         if (contact == null) {
             return "";
         } else {


@@ -764,108 +768,95 @@ public class Manager implements Signal {
         }
     }
 
         }
     }
 

-    @Override

     public void setContactName(String number, String name) throws InvalidNumberException {
     public void setContactName(String number, String name) throws InvalidNumberException {

-        String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
-        ContactInfo contact = account.getContactStore().getContact(canonicalizedNumber);
+        final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
+        ContactInfo contact = account.getContactStore().getContact(address);

         if (contact == null) {
         if (contact == null) {

-            contact = new ContactInfo();
-            contact.number = canonicalizedNumber;
-            System.err.println("Add contact " + canonicalizedNumber + " named " + name);
-        } else {
-            System.err.println("Updating contact " + canonicalizedNumber + " name " + contact.name + " -> " + name);
+            contact = new ContactInfo(address);

         }
         contact.name = name;
         account.getContactStore().updateContact(contact);
         account.save();
     }
 
         }
         contact.name = name;
         account.getContactStore().updateContact(contact);
         account.save();
     }
 

-    @Override

     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {

-        number = Utils.canonicalizeNumber(number, username);
-        ContactInfo contact = account.getContactStore().getContact(number);
+        setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
+    }
+
+    private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
+        ContactInfo contact = account.getContactStore().getContact(address);

         if (contact == null) {
         if (contact == null) {

-            contact = new ContactInfo();
-            contact.number = number;
-            System.err.println("Adding and " + (blocked ? "blocking" : "unblocking") + " contact " + number);
-        } else {
-            System.err.println((blocked ? "Blocking" : "Unblocking") + " contact " + number);
+            contact = new ContactInfo(address);

         }
         contact.blocked = blocked;
         account.getContactStore().updateContact(contact);
         account.save();
     }
 
         }
         contact.blocked = blocked;
         account.getContactStore().updateContact(contact);
         account.save();
     }
 

-    @Override

     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
         GroupInfo group = getGroup(groupId);
         if (group == null) {
             throw new GroupNotFoundException(groupId);
     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
         GroupInfo group = getGroup(groupId);
         if (group == null) {
             throw new GroupNotFoundException(groupId);

-        } else {
-            System.err.println((blocked ? "Blocking" : "Unblocking") + " group " + Base64.encodeBytes(groupId));
-            group.blocked = blocked;
-            account.getGroupStore().updateGroup(group);
-            account.save();
-        }
-    }
-
-    @Override
-    public List<byte[]> getGroupIds() {
-        List<GroupInfo> groups = getGroups();
-        List<byte[]> ids = new ArrayList<>(groups.size());
-        for (GroupInfo group : groups) {
-            ids.add(group.groupId);

         }
         }

-        return ids;
-    }

 
 

-    @Override
-    public String getGroupName(byte[] groupId) {
-        GroupInfo group = getGroup(groupId);
-        if (group == null) {
-            return "";
-        } else {
-            return group.name;
-        }
-    }
-
-    @Override
-    public List<String> getGroupMembers(byte[] groupId) {
-        GroupInfo group = getGroup(groupId);
-        if (group == null) {
-            return new ArrayList<>();
-        } else {
-            return new ArrayList<>(group.members);
-        }
+        group.setBlocked(blocked);
+        account.getGroupStore().updateGroup(group);
+        account.save();

     }
 
     }
 

-    @Override
-    public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
+    public Pair<byte[], List<SendMessageResult>> updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {

         if (groupId.length == 0) {
             groupId = null;
         }
         if (name.isEmpty()) {
             name = null;
         }
         if (groupId.length == 0) {
             groupId = null;
         }
         if (name.isEmpty()) {
             name = null;
         }

-        if (members.size() == 0) {
+        if (members.isEmpty()) {

             members = null;
         }
         if (avatar.isEmpty()) {
             avatar = null;
         }
             members = null;
         }
         if (avatar.isEmpty()) {
             avatar = null;
         }

-        return sendUpdateGroupMessage(groupId, name, members, avatar);
+        return sendUpdateGroupMessage(groupId, name, members == null ? null : getSignalServiceAddresses(members), avatar);

     }
 
     /**
     }
 
     /**

-     * Change the expiration timer for a thread (number of groupId)
-     *
-     * @param numberOrGroupId
-     * @param messageExpirationTimer
+     * Change the expiration timer for a contact
+     */
+    public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
+        ContactInfo contact = account.getContactStore().getContact(address);
+        contact.messageExpirationTime = messageExpirationTimer;
+        account.getContactStore().updateContact(contact);
+        sendExpirationTimerUpdate(address);
+        account.save();
+    }
+
+    private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
+        final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
+                .asExpirationUpdate();
+        sendMessage(messageBuilder, Collections.singleton(address));
+    }
+
+    /**
+     * Change the expiration timer for a contact

      */
      */

-    public void setExpirationTimer(String numberOrGroupId, int messageExpirationTimer) {
-        ThreadInfo thread = account.getThreadStore().getThread(numberOrGroupId);
-        thread.messageExpirationTime = messageExpirationTimer;
-        account.getThreadStore().updateThread(thread);
+    public void setExpirationTimer(String number, int messageExpirationTimer) throws IOException, InvalidNumberException {
+        SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
+        setExpirationTimer(address, messageExpirationTimer);
+    }
+
+    /**
+     * Change the expiration timer for a group
+     */
+    public void setExpirationTimer(byte[] groupId, int messageExpirationTimer) {
+        GroupInfo g = account.getGroupStore().getGroup(groupId);
+        if (g instanceof GroupInfoV1) {
+            GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
+            groupInfoV1.messageExpirationTime = messageExpirationTimer;
+            account.getGroupStore().updateGroup(groupInfoV1);
+        } else {
+            throw new RuntimeException("TODO Not implemented!");
+        }

     }
 
     /**
     }
 
     /**


@@ -882,8 +873,12 @@ public class Manager implements Signal {
         byte[] packKey = KeyUtils.createStickerUploadKey();
         String packId = messageSender.uploadStickerManifest(manifest, packKey);
 
         byte[] packKey = KeyUtils.createStickerUploadKey();
         String packId = messageSender.uploadStickerManifest(manifest, packKey);
 

+        Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
+        account.getStickerStore().updateSticker(sticker);
+        account.save();
+

         try {
         try {

-            return new URI("https", "signal.art", "/addstickers/", "pack_id=" + URLEncoder.encode(packId, "utf-8") + "&pack_key=" + URLEncoder.encode(Hex.toStringCondensed(packKey), "utf-8"))
+            return new URI("https", "signal.art", "/addstickers/", "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8))

                     .toString();
         } catch (URISyntaxException e) {
             throw new AssertionError(e);
                     .toString();
         } catch (URISyntaxException e) {
             throw new AssertionError(e);


@@ -926,7 +921,8 @@ public class Manager implements Signal {
                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
             }
 
                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
             }
 

-            StickerInfo stickerInfo = new StickerInfo(data.first(), data.second(), Optional.fromNullable(sticker.emoji).or(""));
+            String contentType = Utils.getFileMimeType(new File(sticker.file), null);
+            StickerInfo stickerInfo = new StickerInfo(data.first(), data.second(), Optional.fromNullable(sticker.emoji).or(""), contentType);

             stickers.add(stickerInfo);
         }
 
             stickers.add(stickerInfo);
         }
 


@@ -943,7 +939,8 @@ public class Manager implements Signal {
                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
             }
 
                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
             }
 

-            cover = new StickerInfo(data.first(), data.second(), Optional.fromNullable(pack.cover.emoji).or(""));
+            String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
+            cover = new StickerInfo(data.first(), data.second(), Optional.fromNullable(pack.cover.emoji).or(""), contentType);

         }
 
         return new SignalServiceStickerManifestUpload(
         }
 
         return new SignalServiceStickerManifestUpload(


@@ -953,7 +950,7 @@ public class Manager implements Signal {
                 stickers);
     }
 
                 stickers);
     }
 

-    private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException, StickerPackInvalidException {
+    private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {

         InputStream inputStream;
         if (zip != null) {
             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
         InputStream inputStream;
         if (zip != null) {
             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));


@@ -973,7 +970,7 @@ public class Manager implements Signal {
         }
     }
 
         }
     }
 

-    private void requestSyncGroups() throws IOException {
+    void requestSyncGroups() throws IOException {

         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
         try {
         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
         try {


@@ -983,7 +980,7 @@ public class Manager implements Signal {
         }
     }
 
         }
     }
 

-    private void requestSyncContacts() throws IOException {
+    void requestSyncContacts() throws IOException {

         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
         try {
         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
         try {


@@ -993,7 +990,7 @@ public class Manager implements Signal {
         }
     }
 
         }
     }
 

-    private void requestSyncBlocked() throws IOException {
+    void requestSyncBlocked() throws IOException {

         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
         try {
         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
         try {


@@ -1003,7 +1000,7 @@ public class Manager implements Signal {
         }
     }
 
         }
     }
 

-    private void requestSyncConfiguration() throws IOException {
+    void requestSyncConfiguration() throws IOException {

         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
         try {
         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
         try {


@@ -1013,8 +1010,16 @@ public class Manager implements Signal {
         }
     }
 
         }
     }
 

-    private byte[] getSenderCertificate() throws IOException {
-        byte[] certificate = accountManager.getSenderCertificate();
+    private byte[] getSenderCertificate() {
+        // TODO support UUID capable sender certificates
+        // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
+        byte[] certificate;
+        try {
+            certificate = accountManager.getSenderCertificate();
+        } catch (IOException e) {
+            System.err.println("Failed to get sender certificate: " + e);
+            return null;
+        }

         // TODO cache for a day
         return certificate;
     }
         // TODO cache for a day
         return certificate;
     }


@@ -1023,33 +1028,18 @@ public class Manager implements Signal {
         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
     }
 
         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
     }
 

-    private static SignalProfile decryptProfile(SignalServiceProfile encryptedProfile, ProfileKey profileKey) throws IOException {
-        ProfileCipher profileCipher = new ProfileCipher(profileKey);
-        try {
-            return new SignalProfile(
-                    encryptedProfile.getIdentityKey(),
-                    encryptedProfile.getName() == null ? null : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName()))),
-                    encryptedProfile.getAvatar(),
-                    encryptedProfile.getUnidentifiedAccess() == null || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess())) ? null : encryptedProfile.getUnidentifiedAccess(),
-                    encryptedProfile.isUnrestrictedUnidentifiedAccess()
-            );
-        } catch (InvalidCiphertextException e) {
+    private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
+        ProfileKey theirProfileKey = account.getProfileStore().getProfileKey(recipient);
+        if (theirProfileKey == null) {

             return null;
         }
             return null;
         }

-    }
-
-    private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) throws IOException {
-        ContactInfo contact = account.getContactStore().getContact(recipient.getNumber().get());
-        if (contact == null || contact.profileKey == null) {
-            return null;
-        }
-        ProfileKey theirProfileKey;
+        SignalProfile targetProfile;

         try {
         try {

-            theirProfileKey = new ProfileKey(Base64.decode(contact.profileKey));
-        } catch (InvalidInputException e) {
-            throw new AssertionError(e);
+            targetProfile = getRecipientProfile(recipient, Optional.absent(), theirProfileKey);
+        } catch (IOException e) {
+            System.err.println("Failed to get recipient profile: " + e);
+            return null;

         }
         }

-        SignalProfile targetProfile = decryptProfile(getRecipientProfile(recipient, Optional.absent()), theirProfileKey);

 
         if (targetProfile == null || targetProfile.getUnidentifiedAccess() == null) {
             return null;
 
         if (targetProfile == null || targetProfile.getUnidentifiedAccess() == null) {
             return null;


@@ -1062,7 +1052,7 @@ public class Manager implements Signal {
         return UnidentifiedAccess.deriveAccessKeyFrom(theirProfileKey);
     }
 
         return UnidentifiedAccess.deriveAccessKeyFrom(theirProfileKey);
     }
 

-    private Optional<UnidentifiedAccessPair> getAccessForSync() throws IOException {
+    private Optional<UnidentifiedAccessPair> getAccessForSync() {

         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
 
         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
 


@@ -1080,7 +1070,7 @@ public class Manager implements Signal {
         }
     }
 
         }
     }
 

-    private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) throws IOException {
+    private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {

         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
         for (SignalServiceAddress recipient : recipients) {
             result.add(getAccessFor(recipient));
         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
         for (SignalServiceAddress recipient : recipients) {
             result.add(getAccessFor(recipient));


@@ -1088,7 +1078,7 @@ public class Manager implements Signal {
         return result;
     }
 
         return result;
     }
 

-    private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) throws IOException {
+    private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {

         byte[] recipientUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
         byte[] recipientUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();


@@ -1107,50 +1097,41 @@ public class Manager implements Signal {
         }
     }
 
         }
     }
 

+    private Optional<UnidentifiedAccess> getUnidentifiedAccess(SignalServiceAddress recipient) {
+        Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
+
+        if (unidentifiedAccess.isPresent()) {
+            return unidentifiedAccess.get().getTargetUnidentifiedAccess();
+        }
+
+        return Optional.absent();
+    }
+

     private void sendSyncMessage(SignalServiceSyncMessage message)
             throws IOException, UntrustedIdentityException {
         SignalServiceMessageSender messageSender = getMessageSender();
         try {
             messageSender.sendMessage(message, getAccessForSync());
         } catch (UntrustedIdentityException e) {
     private void sendSyncMessage(SignalServiceSyncMessage message)
             throws IOException, UntrustedIdentityException {
         SignalServiceMessageSender messageSender = getMessageSender();
         try {
             messageSender.sendMessage(message, getAccessForSync());
         } catch (UntrustedIdentityException e) {

-            account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
+            account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);

             throw e;
         }
     }
 
             throw e;
         }
     }
 

-    /**
-     * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
-     */
-    private void sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
-            throws EncapsulatedExceptions, IOException {
-        List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
-
-        List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
-        List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
-        List<NetworkFailureException> networkExceptions = new LinkedList<>();
-
-        for (SendMessageResult result : results) {
-            if (result.isUnregisteredFailure()) {
-                unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getNumber().get(), null));
-            } else if (result.isNetworkFailure()) {
-                networkExceptions.add(new NetworkFailureException(result.getAddress().getNumber().get(), null));
-            } else if (result.getIdentityFailure() != null) {
-                untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getNumber().get(), result.getIdentityFailure().getIdentityKey()));
-            }
-        }
-        if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
-            throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
+    private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
+        final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
+
+        for (String number : numbers) {
+            signalServiceAddresses.add(canonicalizeAndResolveSignalServiceAddress(number));

         }
         }

+        return signalServiceAddresses;

     }
 
     }
 

-    private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
+    private Pair<Long, List<SendMessageResult>> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)

             throws IOException {
             throws IOException {

-        Set<SignalServiceAddress> recipientsTS = Utils.getSignalServiceAddresses(recipients, username);
-        if (recipientsTS == null) {
-            account.save();
-            return Collections.emptyList();
-        }
-
+        recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
+        final long timestamp = System.currentTimeMillis();
+        messageBuilder.withTimestamp(timestamp);

         if (messagePipe == null) {
             messagePipe = getMessageReceiver().createMessagePipe();
         }
         if (messagePipe == null) {
             messagePipe = getMessageReceiver().createMessagePipe();
         }


@@ -1159,173 +1140,243 @@ public class Manager implements Signal {
         }
         SignalServiceDataMessage message = null;
         try {
         }
         SignalServiceDataMessage message = null;
         try {

-            SignalServiceMessageSender messageSender = getMessageSender();
-

             message = messageBuilder.build();
             message = messageBuilder.build();

-            if (message.getGroupInfo().isPresent()) {
+            if (message.getGroupContext().isPresent()) {

                 try {
                 try {

+                    SignalServiceMessageSender messageSender = getMessageSender();

                     final boolean isRecipientUpdate = false;
                     final boolean isRecipientUpdate = false;

-                    List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipientsTS), getAccessFor(recipientsTS), isRecipientUpdate, message);
+                    List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients), getAccessFor(recipients), isRecipientUpdate, message);

                     for (SendMessageResult r : result) {
                         if (r.getIdentityFailure() != null) {
                     for (SendMessageResult r : result) {
                         if (r.getIdentityFailure() != null) {

-                            account.getSignalProtocolStore().saveIdentity(r.getAddress().getNumber().get(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
+                            account.getSignalProtocolStore().saveIdentity(r.getAddress(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);

                         }
                     }
                         }
                     }

-                    return result;
+                    return new Pair<>(timestamp, result);

                 } catch (UntrustedIdentityException e) {
                 } catch (UntrustedIdentityException e) {

-                    account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
-                    return Collections.emptyList();
+                    account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
+                    return new Pair<>(timestamp, Collections.emptyList());

                 }
                 }

-            } else if (recipientsTS.size() == 1 && recipientsTS.contains(getSelfAddress())) {
-                SignalServiceAddress recipient = getSelfAddress();
-                final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
-                SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
-                        message.getTimestamp(),
-                        message,
-                        message.getExpiresInSeconds(),
-                        Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
-                        false);
-                SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
-
-                List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
-                try {
-                    messageSender.sendMessage(syncMessage, unidentifiedAccess);
-                } catch (UntrustedIdentityException e) {
-                    account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
-                    results.add(SendMessageResult.identityFailure(recipient, e.getIdentityKey()));
-                }
-                return results;

             } else {
                 // Send to all individually, so sync messages are sent correctly
             } else {
                 // Send to all individually, so sync messages are sent correctly

-                List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
-                for (SignalServiceAddress address : recipientsTS) {
-                    ThreadInfo thread = account.getThreadStore().getThread(address.getNumber().get());
-                    if (thread != null) {
-                        messageBuilder.withExpiration(thread.messageExpirationTime);
+                List<SendMessageResult> results = new ArrayList<>(recipients.size());
+                for (SignalServiceAddress address : recipients) {
+                    ContactInfo contact = account.getContactStore().getContact(address);
+                    if (contact != null) {
+                        messageBuilder.withExpiration(contact.messageExpirationTime);
+                        messageBuilder.withProfileKey(account.getProfileKey().serialize());

                     } else {
                         messageBuilder.withExpiration(0);
                     } else {
                         messageBuilder.withExpiration(0);

+                        messageBuilder.withProfileKey(null);

                     }
                     message = messageBuilder.build();
                     }
                     message = messageBuilder.build();

-                    try {
-                        SendMessageResult result = messageSender.sendMessage(address, getAccessFor(address), message);
-                        results.add(result);
-                    } catch (UntrustedIdentityException e) {
-                        account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
-                        results.add(SendMessageResult.identityFailure(address, e.getIdentityKey()));
+                    if (address.matches(account.getSelfAddress())) {
+                        results.add(sendSelfMessage(message));
+                    } else {
+                        results.add(sendMessage(address, message));

                     }
                 }
                     }
                 }

-                return results;
+                return new Pair<>(timestamp, results);

             }
         } finally {
             if (message != null && message.isEndSession()) {
             }
         } finally {
             if (message != null && message.isEndSession()) {

-                for (SignalServiceAddress recipient : recipientsTS) {
-                    handleEndSession(recipient.getNumber().get());
+                for (SignalServiceAddress recipient : recipients) {
+                    handleEndSession(recipient);

                 }
             }
             account.save();
         }
     }
 
                 }
             }
             account.save();
         }
     }
 

-    private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, ProtocolUntrustedIdentityException, SelfSendException, UnsupportedDataMessageException {
-        SignalServiceCipher cipher = new SignalServiceCipher(getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
+    private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
+        SignalServiceMessageSender messageSender = getMessageSender();
+
+        SignalServiceAddress recipient = account.getSelfAddress();
+
+        final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
+        SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
+                message.getTimestamp(),
+                message,
+                message.getExpiresInSeconds(),
+                Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
+                false);
+        SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
+
+        try {
+            long startTime = System.currentTimeMillis();
+            messageSender.sendMessage(syncMessage, unidentifiedAccess);
+            return SendMessageResult.success(recipient, unidentifiedAccess.isPresent(), false, System.currentTimeMillis() - startTime);
+        } catch (UntrustedIdentityException e) {
+            account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
+            return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
+        }
+    }
+
+    private SendMessageResult sendMessage(SignalServiceAddress address, SignalServiceDataMessage message) throws IOException {
+        SignalServiceMessageSender messageSender = getMessageSender();
+
+        try {
+            return messageSender.sendMessage(address, getAccessFor(address), message);
+        } catch (UntrustedIdentityException e) {
+            account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
+            return SendMessageResult.identityFailure(address, e.getIdentityKey());
+        }
+    }
+
+    private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
+        SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());

         try {
             return cipher.decrypt(envelope);
         } catch (ProtocolUntrustedIdentityException e) {
         try {
             return cipher.decrypt(envelope);
         } catch (ProtocolUntrustedIdentityException e) {

-            // TODO We don't get the new untrusted identity from ProtocolUntrustedIdentityException anymore ... we need to get it from somewhere else
-//            account.getSignalProtocolStore().saveIdentity(e.getSender(), e.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
-            throw e;
+            if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
+                org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
+                account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(identityException.getName()), identityException.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
+                throw identityException;
+            }
+            throw new AssertionError(e);

         }
     }
 
         }
     }
 

-    private void handleEndSession(String source) {
+    private void handleEndSession(SignalServiceAddress source) {

         account.getSignalProtocolStore().deleteAllSessions(source);
     }
 
         account.getSignalProtocolStore().deleteAllSessions(source);
     }
 

-    private void handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, String source, SignalServiceAddress destination, boolean ignoreAttachments) {
-        String threadId;
-        if (message.getGroupInfo().isPresent()) {
-            SignalServiceGroup groupInfo = message.getGroupInfo().get();
-            threadId = Base64.encodeBytes(groupInfo.getGroupId());
-            GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
-            switch (groupInfo.getType()) {
-                case UPDATE:
-                    if (group == null) {
-                        group = new GroupInfo(groupInfo.getGroupId());
-                    }
+    private static int currentTimeDays() {
+        return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
+    }

 
 

-                    if (groupInfo.getAvatar().isPresent()) {
-                        SignalServiceAttachment avatar = groupInfo.getAvatar().get();
-                        if (avatar.isPointer()) {
-                            try {
-                                retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
-                            } catch (IOException | InvalidMessageException e) {
-                                System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getId() + "): " + e.getMessage());
+    private GroupsV2AuthorizationString getGroupAuthForToday(final GroupSecretParams groupSecretParams) throws IOException, VerificationFailedException {
+        final int today = currentTimeDays();
+        // Returns credentials for the next 7 days
+        final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
+        // TODO cache credentials until they expire
+        AuthCredentialResponse authCredentialResponse = credentials.get(today);
+        return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(), today, groupSecretParams, authCredentialResponse);
+    }
+
+    private List<HandleAction> handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, SignalServiceAddress source, SignalServiceAddress destination, boolean ignoreAttachments) {
+        List<HandleAction> actions = new ArrayList<>();
+        if (message.getGroupContext().isPresent()) {
+            if (message.getGroupContext().get().getGroupV1().isPresent()) {
+                SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
+                GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
+                if (group == null || group instanceof GroupInfoV1) {
+                    GroupInfoV1 groupV1 = (GroupInfoV1) group;
+                    switch (groupInfo.getType()) {
+                        case UPDATE: {
+                            if (groupV1 == null) {
+                                groupV1 = new GroupInfoV1(groupInfo.getGroupId());

                             }
                             }

-                        }
-                    }

 
 

-                    if (groupInfo.getName().isPresent()) {
-                        group.name = groupInfo.getName().get();
-                    }
+                            if (groupInfo.getAvatar().isPresent()) {
+                                SignalServiceAttachment avatar = groupInfo.getAvatar().get();
+                                if (avatar.isPointer()) {
+                                    try {
+                                        retrieveGroupAvatarAttachment(avatar.asPointer(), groupV1.groupId);
+                                    } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
+                                        System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getRemoteId() + "): " + e.getMessage());
+                                    }
+                                }
+                            }

 
 

-                    if (groupInfo.getMembers().isPresent()) {
-                        group.addMembers(groupInfo.getMembers().get());
-                    }
+                            if (groupInfo.getName().isPresent()) {
+                                groupV1.name = groupInfo.getName().get();
+                            }

 
 

-                    account.getGroupStore().updateGroup(group);
-                    break;
-                case DELIVER:
-                    if (group == null) {
-                        try {
-                            sendGroupInfoRequest(groupInfo.getGroupId(), source);
-                        } catch (IOException | EncapsulatedExceptions e) {
-                            e.printStackTrace();
+                            if (groupInfo.getMembers().isPresent()) {
+                                groupV1.addMembers(groupInfo.getMembers().get()
+                                        .stream()
+                                        .map(this::resolveSignalServiceAddress)
+                                        .collect(Collectors.toSet()));
+                            }
+
+                            account.getGroupStore().updateGroup(groupV1);
+                            break;

                         }
                         }

-                    }
-                    break;
-                case QUIT:
-                    if (group == null) {
-                        try {
-                            sendGroupInfoRequest(groupInfo.getGroupId(), source);
-                        } catch (IOException | EncapsulatedExceptions e) {
-                            e.printStackTrace();
+                        case DELIVER:
+                            if (groupV1 == null && !isSync) {
+                                actions.add(new SendGroupInfoRequestAction(source, groupInfo.getGroupId()));
+                            }
+                            break;
+                        case QUIT: {
+                            if (groupV1 != null) {
+                                groupV1.removeMember(source);
+                                account.getGroupStore().updateGroup(groupV1);
+                            }
+                            break;

                         }
                         }

-                    } else {
-                        group.members.remove(source);
-                        account.getGroupStore().updateGroup(group);
+                        case REQUEST_INFO:
+                            if (groupV1 != null && !isSync) {
+                                actions.add(new SendGroupUpdateAction(source, groupV1.groupId));
+                            }
+                            break;

                     }
                     }

-                    break;
-                case REQUEST_INFO:
-                    if (group != null) {
+                } else {
+                    System.err.println("Received a group v1 message for a v2 group: " + group.getTitle());
+                }
+            }
+            if (message.getGroupContext().get().getGroupV2().isPresent()) {
+                final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
+                final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
+
+                final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
+
+                byte[] groupId = groupSecretParams.getPublicParams().getGroupIdentifier().serialize();
+                GroupInfo groupInfo = account.getGroupStore().getGroup(groupId);
+                if (groupInfo instanceof GroupInfoV1) {
+                    // TODO upgrade group
+                } else if (groupInfo == null || groupInfo instanceof GroupInfoV2) {
+                    GroupInfoV2 groupInfoV2 = groupInfo == null
+                            ? new GroupInfoV2(groupId, groupMasterKey)
+                            : (GroupInfoV2) groupInfo;
+
+                    if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < groupContext.getRevision()) {
+                        // TODO check if revision is only 1 behind and a signedGroupChange is available

                         try {
                         try {

-                            sendUpdateGroupMessage(groupInfo.getGroupId(), source);
-                        } catch (IOException | EncapsulatedExceptions e) {
-                            e.printStackTrace();
-                        } catch (NotAGroupMemberException e) {
-                            // We have left this group, so don't send a group update message
+                            final GroupsV2AuthorizationString groupsV2AuthorizationString = getGroupAuthForToday(groupSecretParams);
+                            final DecryptedGroup group = groupsV2Api.getGroup(groupSecretParams, groupsV2AuthorizationString);
+                            groupInfoV2.setGroup(group);
+                            for (DecryptedMember member : group.getMembersList()) {
+                                final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(member.getUuid().toByteArray()), null));
+                                try {
+                                    account.getProfileStore().storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
+                                } catch (InvalidInputException ignored) {
+                                }
+                            }
+                        } catch (IOException | VerificationFailedException | InvalidGroupStateException e) {
+                            System.err.println("Failed to retrieve Group V2 info, ignoring ...");

                         }
                         }

+                        account.getGroupStore().updateGroup(groupInfoV2);

                     }
                     }

-                    break;
-            }
-        } else {
-            if (isSync) {
-                threadId = destination.getNumber().get();
-            } else {
-                threadId = source;
+                }

             }
         }
             }
         }

+        final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;

         if (message.isEndSession()) {
         if (message.isEndSession()) {

-            handleEndSession(isSync ? destination.getNumber().get() : source);
+            handleEndSession(conversationPartnerAddress);

         }
         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
         }
         if (message.isExpirationUpdate() || message.getBody().isPresent()) {

-            ThreadInfo thread = account.getThreadStore().getThread(threadId);
-            if (thread == null) {
-                thread = new ThreadInfo();
-                thread.id = threadId;
-            }
-            if (thread.messageExpirationTime != message.getExpiresInSeconds()) {
-                thread.messageExpirationTime = message.getExpiresInSeconds();
-                account.getThreadStore().updateThread(thread);
+            if (message.getGroupContext().isPresent()) {
+                if (message.getGroupContext().get().getGroupV1().isPresent()) {
+                    SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
+                    GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(groupInfo.getGroupId());
+                    if (group != null) {
+                        if (group.messageExpirationTime != message.getExpiresInSeconds()) {
+                            group.messageExpirationTime = message.getExpiresInSeconds();
+                            account.getGroupStore().updateGroup(group);
+                        }
+                    }
+                } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
+                    // disappearing message timer already stored in the DecryptedGroup
+                }
+            } else {
+                ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
+                if (contact == null) {
+                    contact = new ContactInfo(conversationPartnerAddress);
+                }
+                if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
+                    contact.messageExpirationTime = message.getExpiresInSeconds();
+                    account.getContactStore().updateContact(contact);
+                }

             }
         }
         if (message.getAttachments().isPresent() && !ignoreAttachments) {
             }
         }
         if (message.getAttachments().isPresent() && !ignoreAttachments) {


@@ -1333,26 +1384,23 @@ public class Manager implements Signal {
                 if (attachment.isPointer()) {
                     try {
                         retrieveAttachment(attachment.asPointer());
                 if (attachment.isPointer()) {
                     try {
                         retrieveAttachment(attachment.asPointer());

-                    } catch (IOException | InvalidMessageException e) {
-                        System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getId() + "): " + e.getMessage());
+                    } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
+                        System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getRemoteId() + "): " + e.getMessage());

                     }
                 }
             }
         }
         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
                     }
                 }
             }
         }
         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {

-            if (source.equals(username)) {
-                try {
-                    this.account.setProfileKey(new ProfileKey(message.getProfileKey().get()));
-                } catch (InvalidInputException ignored) {
-                }
+            final ProfileKey profileKey;
+            try {
+                profileKey = new ProfileKey(message.getProfileKey().get());
+            } catch (InvalidInputException e) {
+                throw new AssertionError(e);

             }
             }

-            ContactInfo contact = account.getContactStore().getContact(source);
-            if (contact == null) {
-                contact = new ContactInfo();
-                contact.number = source;
+            if (source.matches(account.getSelfAddress())) {
+                this.account.setProfileKey(profileKey);

             }
             }

-            contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
-            account.getContactStore().updateContact(contact);
+            this.account.getProfileStore().storeProfileKey(source, profileKey);

         }
         if (message.getPreviews().isPresent()) {
             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
         }
         if (message.getPreviews().isPresent()) {
             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();


@@ -1361,12 +1409,21 @@ public class Manager implements Signal {
                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
                     try {
                         retrieveAttachment(attachment);
                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
                     try {
                         retrieveAttachment(attachment);

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

                     }
                 }
             }
         }
                     }
                 }
             }
         }

+        if (message.getSticker().isPresent()) {
+            final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
+            Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
+            if (sticker == null) {
+                sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
+                account.getStickerStore().updateSticker(sticker);
+            }
+        }
+        return actions;

     }
 
     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
     }
 
     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {


@@ -1376,6 +1433,7 @@ public class Manager implements Signal {
         }
         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
             if (!dir.isDirectory()) {
         }
         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
             if (!dir.isDirectory()) {

+                retryFailedReceivedMessage(handler, ignoreAttachments, dir);

                 continue;
             }
 
                 continue;
             }
 


@@ -1383,35 +1441,54 @@ public class Manager implements Signal {
                 if (!fileEntry.isFile()) {
                     continue;
                 }
                 if (!fileEntry.isFile()) {
                     continue;
                 }

-                SignalServiceEnvelope envelope;
-                try {
-                    envelope = Utils.loadEnvelope(fileEntry);
-                    if (envelope == null) {
-                        continue;
-                    }
-                } catch (IOException e) {
-                    e.printStackTrace();
-                    continue;
-                }
-                SignalServiceContent content = null;
-                if (!envelope.isReceipt()) {
-                    try {
-                        content = decryptMessage(envelope);
-                    } catch (Exception e) {
-                        continue;
-                    }
-                    handleMessage(envelope, content, ignoreAttachments);
-                }
-                account.save();
-                handler.handleMessage(envelope, content, null);
+                retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
+            }
+            // Try to delete directory if empty
+            dir.delete();
+        }
+    }
+
+    private void retryFailedReceivedMessage(final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry) {
+        SignalServiceEnvelope envelope;
+        try {
+            envelope = Utils.loadEnvelope(fileEntry);
+            if (envelope == null) {
+                return;
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+            return;
+        }
+        SignalServiceContent content = null;
+        if (!envelope.isReceipt()) {
+            try {
+                content = decryptMessage(envelope);
+            } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
+                return;
+            } catch (Exception er) {
+                // All other errors are not recoverable, so delete the cached message

                 try {
                     Files.delete(fileEntry.toPath());
                 } catch (IOException e) {
                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
                 }
                 try {
                     Files.delete(fileEntry.toPath());
                 } catch (IOException e) {
                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
                 }

+                return;
+            }
+            List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
+            for (HandleAction action : actions) {
+                try {
+                    action.execute(this);
+                } catch (Throwable e) {
+                    e.printStackTrace();
+                }

             }
             }

-            // Try to delete directory if empty
-            dir.delete();
+        }
+        account.save();
+        handler.handleMessage(envelope, content, null);
+        try {
+            Files.delete(fileEntry.toPath());
+        } catch (IOException e) {
+            System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());

         }
     }
 
         }
     }
 


@@ -1419,62 +1496,103 @@ public class Manager implements Signal {
         retryFailedReceivedMessages(handler, ignoreAttachments);
         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
 
         retryFailedReceivedMessages(handler, ignoreAttachments);
         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
 

-        try {
-            if (messagePipe == null) {
-                messagePipe = messageReceiver.createMessagePipe();
+        Set<HandleAction> queuedActions = null;
+
+        if (messagePipe == null) {
+            messagePipe = messageReceiver.createMessagePipe();
+        }
+
+        boolean hasCaughtUpWithOldMessages = false;
+
+        while (true) {
+            SignalServiceEnvelope envelope;
+            SignalServiceContent content = null;
+            Exception exception = null;
+            final long now = new Date().getTime();
+            try {
+                Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
+                    // store message on disk, before acknowledging receipt to the server
+                    try {
+                        String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
+                        File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
+                        Utils.storeEnvelope(envelope1, cacheFile);
+                    } catch (IOException e) {
+                        System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
+                    }
+                });
+                if (result.isPresent()) {
+                    envelope = result.get();
+                } else {
+                    // Received indicator that server queue is empty
+                    hasCaughtUpWithOldMessages = true;
+
+                    if (queuedActions != null) {
+                        for (HandleAction action : queuedActions) {
+                            try {
+                                action.execute(this);
+                            } catch (Throwable e) {
+                                e.printStackTrace();
+                            }
+                        }
+                        account.save();
+                        queuedActions.clear();
+                        queuedActions = null;
+                    }
+
+                    // Continue to wait another timeout for new messages
+                    continue;
+                }
+            } catch (TimeoutException e) {
+                if (returnOnTimeout)
+                    return;
+                continue;
+            } catch (InvalidVersionException e) {
+                System.err.println("Ignoring error: " + e.getMessage());
+                continue;

             }
 
             }
 

-            while (true) {
-                SignalServiceEnvelope envelope;
-                SignalServiceContent content = null;
-                Exception exception = null;
-                final long now = new Date().getTime();
+            if (envelope.hasSource()) {
+                // Store uuid if we don't have it already
+                SignalServiceAddress source = envelope.getSourceAddress();
+                resolveSignalServiceAddress(source);
+            }
+            if (!envelope.isReceipt()) {

                 try {
                 try {

-                    envelope = messagePipe.read(timeout, unit, envelope1 -> {
-                        // store message on disk, before acknowledging receipt to the server
+                    content = decryptMessage(envelope);
+                } catch (Exception e) {
+                    exception = e;
+                }
+                List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
+                if (hasCaughtUpWithOldMessages) {
+                    for (HandleAction action : actions) {

                         try {
                         try {

-                            File cacheFile = getMessageCacheFile(envelope1.getSourceE164().get(), now, envelope1.getTimestamp());
-                            Utils.storeEnvelope(envelope1, cacheFile);
-                        } catch (IOException e) {
-                            System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
+                            action.execute(this);
+                        } catch (Throwable e) {
+                            e.printStackTrace();

                         }
                         }

-                    });
-                } catch (TimeoutException e) {
-                    if (returnOnTimeout)
-                        return;
-                    continue;
-                } catch (InvalidVersionException e) {
-                    System.err.println("Ignoring error: " + e.getMessage());
-                    continue;
-                }
-                if (!envelope.isReceipt()) {
-                    try {
-                        content = decryptMessage(envelope);
-                    } catch (Exception e) {
-                        exception = e;

                     }
                     }

-                    handleMessage(envelope, content, ignoreAttachments);
-                }
-                account.save();
-                if (!isMessageBlocked(envelope, content)) {
-                    handler.handleMessage(envelope, content, exception);
-                }
-                if (!(exception instanceof ProtocolUntrustedIdentityException)) {
-                    File cacheFile = null;
-                    try {
-                        cacheFile = getMessageCacheFile(envelope.getSourceE164().get(), now, envelope.getTimestamp());
-                        Files.delete(cacheFile.toPath());
-                        // Try to delete directory if empty
-                        new File(getMessageCachePath()).delete();
-                    } catch (IOException e) {
-                        System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
+                } else {
+                    if (queuedActions == null) {
+                        queuedActions = new HashSet<>();

                     }
                     }

+                    queuedActions.addAll(actions);

                 }
             }
                 }
             }

-        } finally {
-            if (messagePipe != null) {
-                messagePipe.shutdown();
-                messagePipe = null;
+            account.save();
+            if (!isMessageBlocked(envelope, content)) {
+                handler.handleMessage(envelope, content, exception);
+            }
+            if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
+                File cacheFile = null;
+                try {
+                    String source = envelope.getSourceE164().isPresent() ? envelope.getSourceE164().get() : "";
+                    cacheFile = getMessageCacheFile(source, now, envelope.getTimestamp());
+                    Files.delete(cacheFile.toPath());
+                    // Try to delete directory if empty
+                    new File(getMessageCachePath()).delete();
+                } catch (IOException e) {
+                    System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
+                }

             }
         }
     }
             }
         }
     }


@@ -1488,25 +1606,24 @@ public class Manager implements Signal {
         } else {
             return false;
         }
         } else {
             return false;
         }

-        ContactInfo sourceContact = getContact(source.getNumber().get());
+        ContactInfo sourceContact = account.getContactStore().getContact(source);

         if (sourceContact != null && sourceContact.blocked) {
             return true;
         }
 
         if (content != null && content.getDataMessage().isPresent()) {
             SignalServiceDataMessage message = content.getDataMessage().get();
         if (sourceContact != null && sourceContact.blocked) {
             return true;
         }
 
         if (content != null && content.getDataMessage().isPresent()) {
             SignalServiceDataMessage message = content.getDataMessage().get();

-            if (message.getGroupInfo().isPresent()) {
-                SignalServiceGroup groupInfo = message.getGroupInfo().get();
+            if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
+                SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();

                 GroupInfo group = getGroup(groupInfo.getGroupId());
                 GroupInfo group = getGroup(groupInfo.getGroupId());

-                if (groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.blocked) {
-                    return true;
-                }
+                return groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.isBlocked();

             }
         }
         return false;
     }
 
             }
         }
         return false;
     }
 

-    private void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
+    private List<HandleAction> handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
+        List<HandleAction> actions = new ArrayList<>();

         if (content != null) {
             SignalServiceAddress sender;
             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
         if (content != null) {
             SignalServiceAddress sender;
             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {


@@ -1514,41 +1631,37 @@ public class Manager implements Signal {
             } else {
                 sender = content.getSender();
             }
             } else {
                 sender = content.getSender();
             }

+            // Store uuid if we don't have it already
+            resolveSignalServiceAddress(sender);
+

             if (content.getDataMessage().isPresent()) {
                 SignalServiceDataMessage message = content.getDataMessage().get();
             if (content.getDataMessage().isPresent()) {
                 SignalServiceDataMessage message = content.getDataMessage().get();

-                handleSignalServiceDataMessage(message, false, sender.getNumber().get(), getSelfAddress(), ignoreAttachments);
+
+                if (content.isNeedsReceipt()) {
+                    actions.add(new SendReceiptAction(sender, message.getTimestamp()));
+                }
+
+                actions.addAll(handleSignalServiceDataMessage(message, false, sender, account.getSelfAddress(), ignoreAttachments));

             }
             if (content.getSyncMessage().isPresent()) {
                 account.setMultiDevice(true);
                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
                 if (syncMessage.getSent().isPresent()) {
                     SentTranscriptMessage message = syncMessage.getSent().get();
             }
             if (content.getSyncMessage().isPresent()) {
                 account.setMultiDevice(true);
                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
                 if (syncMessage.getSent().isPresent()) {
                     SentTranscriptMessage message = syncMessage.getSent().get();

-                    handleSignalServiceDataMessage(message.getMessage(), true, sender.getNumber().get(), message.getDestination().orNull(), ignoreAttachments);
+                    actions.addAll(handleSignalServiceDataMessage(message.getMessage(), true, sender, message.getDestination().orNull(), ignoreAttachments));

                 }
                 if (syncMessage.getRequest().isPresent()) {
                     RequestMessage rm = syncMessage.getRequest().get();
                     if (rm.isContactsRequest()) {
                 }
                 if (syncMessage.getRequest().isPresent()) {
                     RequestMessage rm = syncMessage.getRequest().get();
                     if (rm.isContactsRequest()) {

-                        try {
-                            sendContacts();
-                        } catch (UntrustedIdentityException | IOException e) {
-                            e.printStackTrace();
-                        }
+                        actions.add(SendSyncContactsAction.create());

                     }
                     if (rm.isGroupsRequest()) {
                     }
                     if (rm.isGroupsRequest()) {

-                        try {
-                            sendGroups();
-                        } catch (UntrustedIdentityException | IOException e) {
-                            e.printStackTrace();
-                        }
+                        actions.add(SendSyncGroupsAction.create());

                     }
                     if (rm.isBlockedListRequest()) {
                     }
                     if (rm.isBlockedListRequest()) {

-                        try {
-                            sendBlockedList();
-                        } catch (UntrustedIdentityException | IOException e) {
-                            e.printStackTrace();
-                        }
+                        actions.add(SendSyncBlockedListAction.create());

                     }
                     }

-                    // TODO Handle rm.isConfigurationRequest();
+                    // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();

                 }
                 if (syncMessage.getGroups().isPresent()) {
                     File tmpFile = null;
                 }
                 if (syncMessage.getGroups().isPresent()) {
                     File tmpFile = null;


@@ -1558,28 +1671,33 @@ public class Manager implements Signal {
                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
                             DeviceGroup g;
                             while ((g = s.read()) != null) {
                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
                             DeviceGroup g;
                             while ((g = s.read()) != null) {

-                                GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
-                                if (syncGroup == null) {
-                                    syncGroup = new GroupInfo(g.getId());
-                                }
-                                if (g.getName().isPresent()) {
-                                    syncGroup.name = g.getName().get();
-                                }
-                                syncGroup.addMembers(g.getMembers());
-                                if (!g.isActive()) {
-                                    syncGroup.members.remove(username);
-                                }
-                                syncGroup.blocked = g.isBlocked();
-                                if (g.getColor().isPresent()) {
-                                    syncGroup.color = g.getColor().get();
-                                }
+                                GroupInfoV1 syncGroup = account.getGroupStore().getOrCreateGroupV1(g.getId());
+                                if (syncGroup != null) {
+                                    if (g.getName().isPresent()) {
+                                        syncGroup.name = g.getName().get();
+                                    }
+                                    syncGroup.addMembers(g.getMembers()
+                                            .stream()
+                                            .map(this::resolveSignalServiceAddress)
+                                            .collect(Collectors.toSet()));
+                                    if (!g.isActive()) {
+                                        syncGroup.removeMember(account.getSelfAddress());
+                                    } else {
+                                        // Add ourself to the member set as it's marked as active
+                                        syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
+                                    }
+                                    syncGroup.blocked = g.isBlocked();
+                                    if (g.getColor().isPresent()) {
+                                        syncGroup.color = g.getColor().get();
+                                    }

 
 

-                                if (g.getAvatar().isPresent()) {
-                                    retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
+                                    if (g.getAvatar().isPresent()) {
+                                        retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
+                                    }
+                                    syncGroup.inboxPosition = g.getInboxPosition().orNull();
+                                    syncGroup.archived = g.isArchived();
+                                    account.getGroupStore().updateGroup(syncGroup);

                                 }
                                 }

-                                syncGroup.inboxPosition = g.getInboxPosition().orNull();
-                                syncGroup.archived = g.isArchived();
-                                account.getGroupStore().updateGroup(syncGroup);

                             }
                         }
                     } catch (Exception e) {
                             }
                         }
                     } catch (Exception e) {


@@ -1597,13 +1715,7 @@ public class Manager implements Signal {
                 if (syncMessage.getBlockedList().isPresent()) {
                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
                 if (syncMessage.getBlockedList().isPresent()) {
                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {

-                        if (address.getNumber().isPresent()) {
-                            try {
-                                setContactBlocked(address.getNumber().get(), true);
-                            } catch (InvalidNumberException e) {
-                                e.printStackTrace();
-                            }
-                        }
+                        setContactBlocked(resolveSignalServiceAddress(address), true);

                     }
                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
                         try {
                     }
                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
                         try {


@@ -1628,10 +1740,10 @@ public class Manager implements Signal {
                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
                                     account.setProfileKey(c.getProfileKey().get());
                                 }
                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
                                     account.setProfileKey(c.getProfileKey().get());
                                 }

-                                ContactInfo contact = account.getContactStore().getContact(c.getAddress().getNumber().get());
+                                final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
+                                ContactInfo contact = account.getContactStore().getContact(address);

                                 if (contact == null) {
                                 if (contact == null) {

-                                    contact = new ContactInfo();
-                                    contact.number = c.getAddress().getNumber().get();
+                                    contact = new ContactInfo(address);

                                 }
                                 if (c.getName().isPresent()) {
                                     contact.name = c.getName().get();
                                 }
                                 if (c.getName().isPresent()) {
                                     contact.name = c.getName().get();


@@ -1640,20 +1752,14 @@ public class Manager implements Signal {
                                     contact.color = c.getColor().get();
                                 }
                                 if (c.getProfileKey().isPresent()) {
                                     contact.color = c.getColor().get();
                                 }
                                 if (c.getProfileKey().isPresent()) {

-                                    contact.profileKey = Base64.encodeBytes(c.getProfileKey().get().serialize());
+                                    account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());

                                 }
                                 if (c.getVerified().isPresent()) {
                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
                                 }
                                 if (c.getVerified().isPresent()) {
                                     final VerifiedMessage verifiedMessage = c.getVerified().get();

-                                    account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination().getNumber().get(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
+                                    account.getSignalProtocolStore().setIdentityTrustLevel(verifiedMessage.getDestination(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));

                                 }
                                 if (c.getExpirationTimer().isPresent()) {
                                 }
                                 if (c.getExpirationTimer().isPresent()) {

-                                    ThreadInfo thread = account.getThreadStore().getThread(c.getAddress().getNumber().get());
-                                    if (thread == null) {
-                                        thread = new ThreadInfo();
-                                        thread.id = c.getAddress().getNumber().get();
-                                    }
-                                    thread.messageExpirationTime = c.getExpirationTimer().get();
-                                    account.getThreadStore().updateThread(thread);
+                                    contact.messageExpirationTime = c.getExpirationTimer().get();

                                 }
                                 contact.blocked = c.isBlocked();
                                 contact.inboxPosition = c.getInboxPosition().orNull();
                                 }
                                 contact.blocked = c.isBlocked();
                                 contact.inboxPosition = c.getInboxPosition().orNull();


@@ -1679,21 +1785,39 @@ public class Manager implements Signal {
                 }
                 if (syncMessage.getVerified().isPresent()) {
                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
                 }
                 if (syncMessage.getVerified().isPresent()) {
                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();

-                    account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination().getNumber().get(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
+                    account.getSignalProtocolStore().setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
+                }
+                if (syncMessage.getStickerPackOperations().isPresent()) {
+                    final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
+                    for (StickerPackOperationMessage m : stickerPackOperationMessages) {
+                        if (!m.getPackId().isPresent()) {
+                            continue;
+                        }
+                        Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
+                        if (sticker == null) {
+                            if (!m.getPackKey().isPresent()) {
+                                continue;
+                            }
+                            sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
+                        }
+                        sticker.setInstalled(!m.getType().isPresent() || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
+                        account.getStickerStore().updateSticker(sticker);
+                    }

                 }
                 if (syncMessage.getConfiguration().isPresent()) {
                     // TODO
                 }
             }
         }
                 }
                 if (syncMessage.getConfiguration().isPresent()) {
                     // TODO
                 }
             }
         }

+        return actions;

     }
 
     private File getContactAvatarFile(String number) {
     }
 
     private File getContactAvatarFile(String number) {

-        return new File(avatarsPath, "contact-" + number);
+        return new File(pathConfig.getAvatarsPath(), "contact-" + number);

     }
 
     }
 

-    private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException {
-        IOUtils.createPrivateDirectories(avatarsPath);
+    private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException, MissingConfigurationException {
+        IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());

         if (attachment.isPointer()) {
             SignalServiceAttachmentPointer pointer = attachment.asPointer();
             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
         if (attachment.isPointer()) {
             SignalServiceAttachmentPointer pointer = attachment.asPointer();
             return retrieveAttachment(pointer, getContactAvatarFile(number), false);


@@ -1704,11 +1828,11 @@ public class Manager implements Signal {
     }
 
     private File getGroupAvatarFile(byte[] groupId) {
     }
 
     private File getGroupAvatarFile(byte[] groupId) {

-        return new File(avatarsPath, "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
+        return new File(pathConfig.getAvatarsPath(), "group-" + Base64.encodeBytes(groupId).replace("/", "_"));

     }
 
     }
 

-    private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException {
-        IOUtils.createPrivateDirectories(avatarsPath);
+    private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException, MissingConfigurationException {
+        IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());

         if (attachment.isPointer()) {
             SignalServiceAttachmentPointer pointer = attachment.asPointer();
             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
         if (attachment.isPointer()) {
             SignalServiceAttachmentPointer pointer = attachment.asPointer();
             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);


@@ -1718,16 +1842,39 @@ public class Manager implements Signal {
         }
     }
 
         }
     }
 

-    public File getAttachmentFile(long attachmentId) {
-        return new File(attachmentsPath, attachmentId + "");
+    private File getProfileAvatarFile(SignalServiceAddress address) {
+        return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
+    }
+
+    private File retrieveProfileAvatar(SignalServiceAddress address, String avatarPath, ProfileKey profileKey) throws IOException {
+        IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
+        SignalServiceMessageReceiver receiver = getMessageReceiver();
+        File outputFile = getProfileAvatarFile(address);
+
+        File tmpFile = IOUtils.createTempFile();
+        try (InputStream input = receiver.retrieveProfileAvatar(avatarPath, tmpFile, profileKey, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
+            // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
+            IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
+        } finally {
+            try {
+                Files.delete(tmpFile.toPath());
+            } catch (IOException e) {
+                System.err.println("Failed to delete received avatar temp file “" + tmpFile + "”: " + e.getMessage());
+            }
+        }
+        return outputFile;

     }
 
     }
 

-    private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException {
-        IOUtils.createPrivateDirectories(attachmentsPath);
-        return retrieveAttachment(pointer, getAttachmentFile(pointer.getId()), true);
+    public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
+        return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());

     }
 
     }
 

-    private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException {
+    private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
+        IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
+        return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
+    }
+
+    private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException, MissingConfigurationException {

         if (storePreview && pointer.getPreview().isPresent()) {
             File previewFile = new File(outputFile + ".preview");
             try (OutputStream output = new FileOutputStream(previewFile)) {
         if (storePreview && pointer.getPreview().isPresent()) {
             File previewFile = new File(outputFile + ".preview");
             try (OutputStream output = new FileOutputStream(previewFile)) {


@@ -1742,18 +1889,8 @@ public class Manager implements Signal {
         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
 
         File tmpFile = IOUtils.createTempFile();
         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
 
         File tmpFile = IOUtils.createTempFile();

-        try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE)) {
-            try (OutputStream output = new FileOutputStream(outputFile)) {
-                byte[] buffer = new byte[4096];
-                int read;
-
-                while ((read = input.read(buffer)) != -1) {
-                    output.write(buffer, 0, read);
-                }
-            } catch (FileNotFoundException e) {
-                e.printStackTrace();
-                return null;
-            }
+        try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE)) {
+            IOUtils.copyStreamToFile(input, outputFile);

         } finally {
             try {
                 Files.delete(tmpFile.toPath());
         } finally {
             try {
                 Files.delete(tmpFile.toPath());


@@ -1764,28 +1901,25 @@ public class Manager implements Signal {
         return outputFile;
     }
 
         return outputFile;
     }
 

-    private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException {
+    private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException, MissingConfigurationException {

         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();

-        return messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE);
-    }
-
-    @Override
-    public boolean isRemote() {
-        return false;
+        return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);

     }
 
     }
 

-    private void sendGroups() throws IOException, UntrustedIdentityException {
+    void sendGroups() throws IOException, UntrustedIdentityException {

         File groupsFile = IOUtils.createTempFile();
 
         try {
             try (OutputStream fos = new FileOutputStream(groupsFile)) {
                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
                 for (GroupInfo record : account.getGroupStore().getGroups()) {
         File groupsFile = IOUtils.createTempFile();
 
         try {
             try (OutputStream fos = new FileOutputStream(groupsFile)) {
                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
                 for (GroupInfo record : account.getGroupStore().getGroups()) {

-                    ThreadInfo info = account.getThreadStore().getThread(Base64.encodeBytes(record.groupId));
-                    out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
-                            new ArrayList<>(record.getMembers()), createGroupAvatarAttachment(record.groupId),
-                            record.members.contains(username), Optional.fromNullable(info != null ? info.messageExpirationTime : null),
-                            Optional.fromNullable(record.color), record.blocked, Optional.fromNullable(record.inboxPosition), record.archived));
+                    if (record instanceof GroupInfoV1) {
+                        GroupInfoV1 groupInfo = (GroupInfoV1) record;
+                        out.write(new DeviceGroup(groupInfo.groupId, Optional.fromNullable(groupInfo.name),
+                                new ArrayList<>(groupInfo.getMembers()), createGroupAvatarAttachment(groupInfo.groupId),
+                                groupInfo.isMember(account.getSelfAddress()), Optional.of(groupInfo.messageExpirationTime),
+                                Optional.fromNullable(groupInfo.color), groupInfo.blocked, Optional.fromNullable(groupInfo.inboxPosition), groupInfo.archived));
+                    }

                 }
             }
 
                 }
             }
 


@@ -1817,28 +1951,16 @@ public class Manager implements Signal {
                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
                 for (ContactInfo record : account.getContactStore().getContacts()) {
                     VerifiedMessage verifiedMessage = null;
                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
                 for (ContactInfo record : account.getContactStore().getContacts()) {
                     VerifiedMessage verifiedMessage = null;

-                    ThreadInfo info = account.getThreadStore().getThread(record.number);
-                    if (getIdentities().containsKey(record.number)) {
-                        JsonIdentityKeyStore.Identity currentIdentity = null;
-                        for (JsonIdentityKeyStore.Identity id : getIdentities().get(record.number)) {
-                            if (currentIdentity == null || id.getDateAdded().after(currentIdentity.getDateAdded())) {
-                                currentIdentity = id;
-                            }
-                        }
-                        if (currentIdentity != null) {
-                            verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
-                        }
+                    JsonIdentityKeyStore.Identity currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
+                    if (currentIdentity != null) {
+                        verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());

                     }
 
                     }
 

-                    ProfileKey profileKey = null;
-                    try {
-                        profileKey = record.profileKey == null ? null : new ProfileKey(Base64.decode(record.profileKey));
-                    } catch (InvalidInputException ignored) {
-                    }
+                    ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());

                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,

-                            Optional.fromNullable(info != null ? info.messageExpirationTime : null),
+                            Optional.of(record.messageExpirationTime),

                             Optional.fromNullable(record.inboxPosition), record.archived));
                 }
 
                             Optional.fromNullable(record.inboxPosition), record.archived));
                 }
 


@@ -1872,7 +1994,7 @@ public class Manager implements Signal {
         }
     }
 
         }
     }
 

-    private void sendBlockedList() throws IOException, UntrustedIdentityException {
+    void sendBlockedList() throws IOException, UntrustedIdentityException {

         List<SignalServiceAddress> addresses = new ArrayList<>();
         for (ContactInfo record : account.getContactStore().getContacts()) {
             if (record.blocked) {
         List<SignalServiceAddress> addresses = new ArrayList<>();
         for (ContactInfo record : account.getContactStore().getContacts()) {
             if (record.blocked) {


@@ -1881,7 +2003,7 @@ public class Manager implements Signal {
         }
         List<byte[]> groupIds = new ArrayList<>();
         for (GroupInfo record : account.getGroupStore().getGroups()) {
         }
         List<byte[]> groupIds = new ArrayList<>();
         for (GroupInfo record : account.getGroupStore().getGroups()) {

-            if (record.blocked) {
+            if (record.isBlocked()) {

                 groupIds.add(record.groupId);
             }
         }
                 groupIds.add(record.groupId);
             }
         }


@@ -1898,20 +2020,24 @@ public class Manager implements Signal {
     }
 
     public ContactInfo getContact(String number) {
     }
 
     public ContactInfo getContact(String number) {

-        return account.getContactStore().getContact(number);
+        return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));

     }
 
     public GroupInfo getGroup(byte[] groupId) {
         return account.getGroupStore().getGroup(groupId);
     }
 
     }
 
     public GroupInfo getGroup(byte[] groupId) {
         return account.getGroupStore().getGroup(groupId);
     }
 

-    public Map<String, List<JsonIdentityKeyStore.Identity>> getIdentities() {
+    public byte[] getGroupId(GroupMasterKey groupMasterKey) {
+        final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
+        return groupSecretParams.getPublicParams().getGroupIdentifier().serialize();
+    }
+
+    public List<JsonIdentityKeyStore.Identity> getIdentities() {

         return account.getSignalProtocolStore().getIdentities();
     }
 
         return account.getSignalProtocolStore().getIdentities();
     }
 

-    public Pair<String, List<JsonIdentityKeyStore.Identity>> getIdentities(String number) throws InvalidNumberException {
-        String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
-        return new Pair<>(canonicalizedNumber, account.getSignalProtocolStore().getIdentities(canonicalizedNumber));
+    public List<JsonIdentityKeyStore.Identity> getIdentities(String number) throws InvalidNumberException {
+        return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));

     }
 
     /**
     }
 
     /**


@@ -1920,8 +2046,9 @@ public class Manager implements Signal {
      * @param name        username of the identity
      * @param fingerprint Fingerprint
      */
      * @param name        username of the identity
      * @param fingerprint Fingerprint
      */

-    public boolean trustIdentityVerified(String name, byte[] fingerprint) {
-        List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
+    public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
+        SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
+        List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);

         if (ids == null) {
             return false;
         }
         if (ids == null) {
             return false;
         }


@@ -1930,9 +2057,9 @@ public class Manager implements Signal {
                 continue;
             }
 
                 continue;
             }
 

-            account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
+            account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);

             try {
             try {

-                sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
+                sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);

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


@@ -1948,19 +2075,20 @@ public class Manager implements Signal {
      * @param name         username of the identity
      * @param safetyNumber Safety number
      */
      * @param name         username of the identity
      * @param safetyNumber Safety number
      */

-    public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) {
-        List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
+    public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
+        SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
+        List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);

         if (ids == null) {
             return false;
         }
         for (JsonIdentityKeyStore.Identity id : ids) {
         if (ids == null) {
             return false;
         }
         for (JsonIdentityKeyStore.Identity id : ids) {

-            if (!safetyNumber.equals(computeSafetyNumber(name, id.getIdentityKey()))) {
+            if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {

                 continue;
             }
 
                 continue;
             }
 

-            account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
+            account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);

             try {
             try {

-                sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
+                sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);

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


@@ -1976,15 +2104,16 @@ public class Manager implements Signal {
      * @param name username of the identity
      */
     public boolean trustIdentityAllKeys(String name) {
      * @param name username of the identity
      */
     public boolean trustIdentityAllKeys(String name) {

-        List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
+        SignalServiceAddress address = resolveSignalServiceAddress(name);
+        List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);

         if (ids == null) {
             return false;
         }
         for (JsonIdentityKeyStore.Identity id : ids) {
             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
         if (ids == null) {
             return false;
         }
         for (JsonIdentityKeyStore.Identity id : ids) {
             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {

-                account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
+                account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);

                 try {
                 try {

-                    sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
+                    sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);

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


@@ -1994,8 +2123,46 @@ public class Manager implements Signal {
         return true;
     }
 
         return true;
     }
 

-    public String computeSafetyNumber(String theirUsername, IdentityKey theirIdentityKey) {
-        return Utils.computeSafetyNumber(username, getIdentity(), theirUsername, theirIdentityKey);
+    public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
+        return Utils.computeSafetyNumber(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), theirAddress, theirIdentityKey);
+    }
+
+    void saveAccount() {
+        account.save();
+    }
+
+    public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
+        String canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : Util.canonicalizeNumber(identifier, account.getUsername());
+        return resolveSignalServiceAddress(canonicalizedNumber);
+    }
+
+    public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
+        SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
+
+        return resolveSignalServiceAddress(address);
+    }
+
+    public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
+        if (address.matches(account.getSelfAddress())) {
+            return account.getSelfAddress();
+        }
+
+        return account.getRecipientStore().resolveServiceAddress(address);
+    }
+
+    @Override
+    public void close() throws IOException {
+        if (messagePipe != null) {
+            messagePipe.shutdown();
+            messagePipe = null;
+        }
+
+        if (unidentifiedMessagePipe != null) {
+            unidentifiedMessagePipe.shutdown();
+            unidentifiedMessagePipe = null;
+        }
+
+        account.close();

     }
 
     public interface ReceiveMessageHandler {
     }
 
     public interface ReceiveMessageHandler {