]> nmode's Git Repositories - signal-cli/blobdiff - lib/src/main/java/org/asamk/signal/manager/Manager.java
Add submitRateLimitChallenge command
[signal-cli] / lib / src / main / java / org / asamk / signal / manager / Manager.java
index 3857d803b25bab8e9fd971dc051f97cd1ee6cc5f..a7e80f7cb3abb9c8b33d3b3af92d513c28bf7a83 100644 (file)
@@ -16,6 +16,7 @@
  */
 package org.asamk.signal.manager;
 
+import org.asamk.signal.manager.actions.HandleAction;
 import org.asamk.signal.manager.api.Device;
 import org.asamk.signal.manager.api.Message;
 import org.asamk.signal.manager.api.RecipientIdentifier;
@@ -26,26 +27,27 @@ import org.asamk.signal.manager.config.ServiceConfig;
 import org.asamk.signal.manager.config.ServiceEnvironment;
 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
 import org.asamk.signal.manager.groups.GroupId;
-import org.asamk.signal.manager.groups.GroupIdV1;
 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
 import org.asamk.signal.manager.groups.GroupLinkState;
 import org.asamk.signal.manager.groups.GroupNotFoundException;
 import org.asamk.signal.manager.groups.GroupPermission;
-import org.asamk.signal.manager.groups.GroupUtils;
+import org.asamk.signal.manager.groups.GroupSendingNotAllowedException;
 import org.asamk.signal.manager.groups.LastGroupAdminException;
 import org.asamk.signal.manager.groups.NotAGroupMemberException;
+import org.asamk.signal.manager.helper.AttachmentHelper;
+import org.asamk.signal.manager.helper.ContactHelper;
 import org.asamk.signal.manager.helper.GroupHelper;
 import org.asamk.signal.manager.helper.GroupV2Helper;
+import org.asamk.signal.manager.helper.IncomingMessageHandler;
 import org.asamk.signal.manager.helper.PinHelper;
 import org.asamk.signal.manager.helper.ProfileHelper;
 import org.asamk.signal.manager.helper.SendHelper;
+import org.asamk.signal.manager.helper.StorageHelper;
+import org.asamk.signal.manager.helper.SyncHelper;
 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
 import org.asamk.signal.manager.jobs.Context;
-import org.asamk.signal.manager.jobs.Job;
-import org.asamk.signal.manager.jobs.RetrieveStickerPackJob;
 import org.asamk.signal.manager.storage.SignalAccount;
 import org.asamk.signal.manager.storage.groups.GroupInfo;
-import org.asamk.signal.manager.storage.groups.GroupInfoV1;
 import org.asamk.signal.manager.storage.identities.IdentityInfo;
 import org.asamk.signal.manager.storage.identities.TrustNewIdentity;
 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
@@ -54,23 +56,14 @@ import org.asamk.signal.manager.storage.recipients.Profile;
 import org.asamk.signal.manager.storage.recipients.RecipientId;
 import org.asamk.signal.manager.storage.stickers.Sticker;
 import org.asamk.signal.manager.storage.stickers.StickerPackId;
-import org.asamk.signal.manager.util.AttachmentUtils;
-import org.asamk.signal.manager.util.IOUtils;
 import org.asamk.signal.manager.util.KeyUtils;
-import org.asamk.signal.manager.util.ProfileUtils;
 import org.asamk.signal.manager.util.StickerUtils;
 import org.asamk.signal.manager.util.Utils;
-import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
-import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
-import org.signal.zkgroup.InvalidInputException;
-import org.signal.zkgroup.profiles.ProfileKey;
-import org.signal.zkgroup.profiles.ProfileKeyCredential;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.whispersystems.libsignal.IdentityKey;
 import org.whispersystems.libsignal.IdentityKeyPair;
 import org.whispersystems.libsignal.InvalidKeyException;
-import org.whispersystems.libsignal.InvalidMessageException;
 import org.whispersystems.libsignal.ecc.ECPublicKey;
 import org.whispersystems.libsignal.fingerprint.Fingerprint;
 import org.whispersystems.libsignal.fingerprint.FingerprintParsingException;
@@ -80,35 +73,16 @@ import org.whispersystems.libsignal.state.SignedPreKeyRecord;
 import org.whispersystems.libsignal.util.Pair;
 import org.whispersystems.libsignal.util.guava.Optional;
 import org.whispersystems.signalservice.api.SignalSessionLock;
-import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
 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.SignalServiceReceiptMessage;
 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
-import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
-import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
-import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
-import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
-import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
-import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
-import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
-import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
-import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
-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.ProfileAndCredential;
-import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
-import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
+import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
@@ -116,27 +90,19 @@ import org.whispersystems.signalservice.api.websocket.WebSocketUnavailableExcept
 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
-import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 import org.whispersystems.signalservice.internal.util.Hex;
 import org.whispersystems.signalservice.internal.util.Util;
 
 import java.io.Closeable;
 import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
 import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
-import java.nio.file.Files;
 import java.security.SignatureException;
-import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Base64;
 import java.util.Collection;
 import java.util.Date;
 import java.util.HashMap;
@@ -168,21 +134,16 @@ public class Manager implements Closeable {
 
     private final ProfileHelper profileHelper;
     private final PinHelper pinHelper;
+    private final StorageHelper storageHelper;
     private final SendHelper sendHelper;
+    private final SyncHelper syncHelper;
+    private final AttachmentHelper attachmentHelper;
     private final GroupHelper groupHelper;
+    private final ContactHelper contactHelper;
+    private final IncomingMessageHandler incomingMessageHandler;
 
-    private final AvatarStore avatarStore;
-    private final AttachmentStore attachmentStore;
-    private final StickerPackStore stickerPackStore;
-    private final SignalSessionLock sessionLock = new SignalSessionLock() {
-        private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
-
-        @Override
-        public Lock acquire() {
-            LEGACY_LOCK.lock();
-            return LEGACY_LOCK::unlock;
-        }
-    };
+    private final Context context;
+    private boolean hasCaughtUpWithOldMessages = false;
 
     Manager(
             SignalAccount account,
@@ -197,58 +158,93 @@ public class Manager implements Closeable {
                 account.getUsername(),
                 account.getPassword(),
                 account.getDeviceId());
-        this.dependencies = new SignalDependencies(account.getSelfAddress(),
-                serviceEnvironmentConfig,
+        final var sessionLock = new SignalSessionLock() {
+            private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
+
+            @Override
+            public Lock acquire() {
+                LEGACY_LOCK.lock();
+                return LEGACY_LOCK::unlock;
+            }
+        };
+        this.dependencies = new SignalDependencies(serviceEnvironmentConfig,
                 userAgent,
                 credentialsProvider,
                 account.getSignalProtocolStore(),
                 executor,
                 sessionLock);
-        this.pinHelper = new PinHelper(dependencies.getKeyBackupService());
+        final var avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
+        final var attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
+        final var stickerPackStore = new StickerPackStore(pathConfig.getStickerPacksPath());
 
+        this.attachmentHelper = new AttachmentHelper(dependencies, attachmentStore);
+        this.pinHelper = new PinHelper(dependencies.getKeyBackupService());
         final var unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
                 account.getProfileStore()::getProfileKey,
                 this::getRecipientProfile,
                 this::getSenderCertificate);
-        this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
+        this.profileHelper = new ProfileHelper(account,
+                dependencies,
+                avatarStore,
+                account.getProfileStore()::getProfileKey,
                 unidentifiedAccessHelper::getAccessFor,
-                dependencies::getProfileService,
-                dependencies::getMessageReceiver,
                 this::resolveSignalServiceAddress);
-        final GroupV2Helper groupV2Helper = new GroupV2Helper(this::getRecipientProfileKeyCredential,
+        final GroupV2Helper groupV2Helper = new GroupV2Helper(profileHelper::getRecipientProfileKeyCredential,
                 this::getRecipientProfile,
                 account::getSelfRecipientId,
                 dependencies.getGroupsV2Operations(),
                 dependencies.getGroupsV2Api(),
                 this::resolveSignalServiceAddress);
-        this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
-        this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
-        this.stickerPackStore = new StickerPackStore(pathConfig.getStickerPacksPath());
         this.sendHelper = new SendHelper(account,
                 dependencies,
                 unidentifiedAccessHelper,
                 this::resolveSignalServiceAddress,
-                this::resolveRecipient,
+                account.getRecipientStore(),
                 this::handleIdentityFailure,
                 this::getGroup,
                 this::refreshRegisteredUser);
         this.groupHelper = new GroupHelper(account,
                 dependencies,
+                attachmentHelper,
                 sendHelper,
                 groupV2Helper,
                 avatarStore,
                 this::resolveSignalServiceAddress,
-                this::resolveRecipient);
+                account.getRecipientStore());
+        this.storageHelper = new StorageHelper(account, dependencies, groupHelper);
+        this.contactHelper = new ContactHelper(account);
+        this.syncHelper = new SyncHelper(account,
+                attachmentHelper,
+                sendHelper,
+                groupHelper,
+                avatarStore,
+                this::resolveSignalServiceAddress);
+
+        this.context = new Context(account,
+                dependencies,
+                stickerPackStore,
+                sendHelper,
+                groupHelper,
+                syncHelper,
+                profileHelper,
+                storageHelper);
+        var jobExecutor = new JobExecutor(context);
+
+        this.incomingMessageHandler = new IncomingMessageHandler(account,
+                dependencies,
+                account.getRecipientStore(),
+                this::resolveSignalServiceAddress,
+                groupHelper,
+                contactHelper,
+                attachmentHelper,
+                syncHelper,
+                jobExecutor);
     }
 
     public String getUsername() {
         return account.getUsername();
     }
 
-    public SignalServiceAddress getSelfAddress() {
-        return account.getSelfAddress();
-    }
-
     public RecipientId getSelfRecipientId() {
         return account.getSelfRecipientId();
     }
@@ -319,7 +315,7 @@ public class Manager implements Closeable {
         if (account.getUuid() == null) {
             account.setUuid(dependencies.getAccountManager().getOwnUuid());
         }
-        updateAccountAttributes();
+        updateAccountAttributes(null);
     }
 
     /**
@@ -332,33 +328,40 @@ public class Manager implements Closeable {
     public Map<String, Pair<String, UUID>> areUsersRegistered(Set<String> numbers) throws IOException {
         Map<String, String> canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
             try {
-                return canonicalizePhoneNumber(n);
+                return PhoneNumberFormatter.formatNumber(n, account.getUsername());
             } catch (InvalidNumberException e) {
                 return "";
             }
         }));
 
-        // Note "contactDetails" has no optionals. It only gives us info on users who are registered
-        var contactDetails = getRegisteredUsers(canonicalizedNumbers.values()
+        // Note "registeredUsers" has no optionals. It only gives us info on users who are registered
+        var registeredUsers = getRegisteredUsers(canonicalizedNumbers.values()
                 .stream()
                 .filter(s -> !s.isEmpty())
                 .collect(Collectors.toSet()));
 
         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
             final var number = canonicalizedNumbers.get(n);
-            final var uuid = contactDetails.get(number);
+            final var uuid = registeredUsers.get(number);
             return new Pair<>(number.isEmpty() ? null : number, uuid);
         }));
     }
 
-    public void updateAccountAttributes() throws IOException {
+    public void updateAccountAttributes(String deviceName) throws IOException {
+        final String encryptedDeviceName;
+        if (deviceName == null) {
+            encryptedDeviceName = account.getEncryptedDeviceName();
+        } else {
+            final var privateKey = account.getIdentityKeyPair().getPrivateKey();
+            encryptedDeviceName = DeviceNameUtil.encryptDeviceName(deviceName, privateKey);
+            account.setEncryptedDeviceName(encryptedDeviceName);
+        }
         dependencies.getAccountManager()
-                .setAccountAttributes(account.getEncryptedDeviceName(),
+                .setAccountAttributes(encryptedDeviceName,
                         null,
                         account.getLocalRegistrationId(),
                         true,
-                        // set legacy pin only if no KBS master key is set
-                        account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
+                        null,
                         account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
                         account.getSelfUnidentifiedAccessKey(),
                         account.isUnrestrictedUnidentifiedAccess(),
@@ -376,46 +379,8 @@ public class Manager implements Closeable {
     public void setProfile(
             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
     ) throws IOException {
-        var profile = getRecipientProfile(account.getSelfRecipientId());
-        var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
-        if (givenName != null) {
-            builder.withGivenName(givenName);
-        }
-        if (familyName != null) {
-            builder.withFamilyName(familyName);
-        }
-        if (about != null) {
-            builder.withAbout(about);
-        }
-        if (aboutEmoji != null) {
-            builder.withAboutEmoji(aboutEmoji);
-        }
-        var newProfile = builder.build();
-
-        try (final var streamDetails = avatar == null
-                ? avatarStore.retrieveProfileAvatar(getSelfAddress())
-                : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
-            dependencies.getAccountManager()
-                    .setVersionedProfile(account.getUuid(),
-                            account.getProfileKey(),
-                            newProfile.getInternalServiceName(),
-                            newProfile.getAbout() == null ? "" : newProfile.getAbout(),
-                            newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
-                            Optional.absent(),
-                            streamDetails);
-        }
-
-        if (avatar != null) {
-            if (avatar.isPresent()) {
-                avatarStore.storeProfileAvatar(getSelfAddress(),
-                        outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
-            } else {
-                avatarStore.deleteProfileAvatar(getSelfAddress());
-            }
-        }
-        account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
-
-        sendHelper.sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
+        profileHelper.setProfile(givenName, familyName, about, aboutEmoji, avatar);
+        syncHelper.sendSyncFetchProfileMessage();
     }
 
     public void unregister() throws IOException {
@@ -428,11 +393,22 @@ public class Manager implements Closeable {
     }
 
     public void deleteAccount() throws IOException {
+        try {
+            pinHelper.removeRegistrationLockPin();
+        } catch (UnauthenticatedResponseException e) {
+            logger.warn("Failed to remove registration lock pin");
+        }
+        account.setRegistrationLockPin(null, null);
+
         dependencies.getAccountManager().deleteAccount();
 
         account.setRegistered(false);
     }
 
+    public void submitRateLimitRecaptchaChallenge(String challenge, String captcha) throws IOException {
+        dependencies.getAccountManager().submitRateLimitRecaptchaChallenge(challenge, captcha);
+    }
+
     public List<Device> getLinkedDevices() throws IOException {
         var devices = dependencies.getAccountManager().getDevices();
         account.setMultiDevice(devices.size() > 1);
@@ -521,165 +497,29 @@ public class Manager implements Closeable {
         return record;
     }
 
-    public Profile getRecipientProfile(
-            RecipientId recipientId
-    ) {
-        return getRecipientProfile(recipientId, false);
-    }
-
-    private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
-
-    Profile getRecipientProfile(
-            RecipientId recipientId, boolean force
-    ) {
-        var profile = account.getProfileStore().getProfile(recipientId);
-
-        var now = System.currentTimeMillis();
-        // Profiles are cached for 24h before retrieving them again, unless forced
-        if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
-            return profile;
-        }
-
-        synchronized (pendingProfileRequest) {
-            if (pendingProfileRequest.contains(recipientId)) {
-                return profile;
-            }
-            pendingProfileRequest.add(recipientId);
-        }
-        final SignalServiceProfile encryptedProfile;
-        try {
-            encryptedProfile = retrieveEncryptedProfile(recipientId);
-        } finally {
-            synchronized (pendingProfileRequest) {
-                pendingProfileRequest.remove(recipientId);
-            }
-        }
-        if (encryptedProfile == null) {
-            return null;
-        }
-
-        profile = decryptProfileIfKeyKnown(recipientId, encryptedProfile);
-        account.getProfileStore().storeProfile(recipientId, profile);
-
-        return profile;
-    }
-
-    private Profile decryptProfileIfKeyKnown(
-            final RecipientId recipientId, final SignalServiceProfile encryptedProfile
-    ) {
-        var profileKey = account.getProfileStore().getProfileKey(recipientId);
-        if (profileKey == null) {
-            return new Profile(System.currentTimeMillis(),
-                    null,
-                    null,
-                    null,
-                    null,
-                    ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
-                    ProfileUtils.getCapabilities(encryptedProfile));
-        }
-
-        return decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
-    }
-
-    private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
-        try {
-            return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
-        } catch (IOException e) {
-            logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
-            return null;
-        }
-    }
-
-    private ProfileAndCredential retrieveProfileAndCredential(
-            final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
-    ) throws IOException {
-        final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
-        final var profile = profileAndCredential.getProfile();
-
-        try {
-            var newIdentity = account.getIdentityKeyStore()
-                    .saveIdentity(recipientId,
-                            new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
-                            new Date());
-
-            if (newIdentity) {
-                account.getSessionStore().archiveSessions(recipientId);
-            }
-        } catch (InvalidKeyException ignored) {
-            logger.warn("Got invalid identity key in profile for {}",
-                    resolveSignalServiceAddress(recipientId).getIdentifier());
-        }
-        return profileAndCredential;
-    }
-
-    private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
-        var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
-        if (profileKeyCredential != null) {
-            return profileKeyCredential;
-        }
-
-        ProfileAndCredential profileAndCredential;
-        try {
-            profileAndCredential = retrieveProfileAndCredential(recipientId,
-                    SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
-        } catch (IOException e) {
-            logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
-            return null;
-        }
-
-        profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
-        account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
-
-        var profileKey = account.getProfileStore().getProfileKey(recipientId);
-        if (profileKey != null) {
-            final var profile = decryptProfileAndDownloadAvatar(recipientId,
-                    profileKey,
-                    profileAndCredential.getProfile());
-            account.getProfileStore().storeProfile(recipientId, profile);
-        }
-
-        return profileKeyCredential;
-    }
-
-    private Profile decryptProfileAndDownloadAvatar(
-            final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
-    ) {
-        if (encryptedProfile.getAvatar() != null) {
-            downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
-        }
-
-        return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
-    }
-
-    private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
-        final var streamDetails = avatarStore.retrieveContactAvatar(address);
-        if (streamDetails == null) {
-            return Optional.absent();
-        }
-
-        return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
+    public Profile getRecipientProfile(RecipientId recipientId) {
+        return profileHelper.getRecipientProfile(recipientId);
     }
 
     public List<GroupInfo> getGroups() {
         return account.getGroupStore().getGroups();
     }
 
-    public SendGroupMessageResults sendQuitGroupMessage(
+    public SendGroupMessageResults quitGroup(
             GroupId groupId, Set<RecipientIdentifier.Single> groupAdmins
     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, LastGroupAdminException {
-        final var newAdmins = getRecipientIds(groupAdmins);
+        final var newAdmins = resolveRecipients(groupAdmins);
         return groupHelper.quitGroup(groupId, newAdmins);
     }
 
     public void deleteGroup(GroupId groupId) throws IOException {
-        account.getGroupStore().deleteGroup(groupId);
-        avatarStore.deleteGroupAvatar(groupId);
+        groupHelper.deleteGroup(groupId);
     }
 
     public Pair<GroupId, SendGroupMessageResults> createGroup(
             String name, Set<RecipientIdentifier.Single> members, File avatarFile
     ) throws IOException, AttachmentInvalidException {
-        return groupHelper.createGroup(name, members == null ? null : getRecipientIds(members), avatarFile);
+        return groupHelper.createGroup(name, members == null ? null : resolveRecipients(members), avatarFile);
     }
 
     public SendGroupMessageResults updateGroup(
@@ -697,14 +537,14 @@ public class Manager implements Closeable {
             File avatarFile,
             Integer expirationTimer,
             Boolean isAnnouncementGroup
-    ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
+    ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException, GroupSendingNotAllowedException {
         return groupHelper.updateGroup(groupId,
                 name,
                 description,
-                members == null ? null : getRecipientIds(members),
-                removeMembers == null ? null : getRecipientIds(removeMembers),
-                admins == null ? null : getRecipientIds(admins),
-                removeAdmins == null ? null : getRecipientIds(removeAdmins),
+                members == null ? null : resolveRecipients(members),
+                removeMembers == null ? null : resolveRecipients(removeMembers),
+                admins == null ? null : resolveRecipients(admins),
+                removeAdmins == null ? null : resolveRecipients(removeAdmins),
                 resetGroupLink,
                 groupLinkState,
                 addMemberPermission,
@@ -722,7 +562,7 @@ public class Manager implements Closeable {
 
     public SendMessageResults sendMessage(
             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientIdentifier> recipients
-    ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
+    ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
         long timestamp = System.currentTimeMillis();
         messageBuilder.withTimestamp(timestamp);
@@ -745,7 +585,7 @@ public class Manager implements Closeable {
 
     public void sendTypingMessage(
             SignalServiceTypingMessage.Action action, Set<RecipientIdentifier> recipients
-    ) throws IOException, UntrustedIdentityException, NotAGroupMemberException, GroupNotFoundException {
+    ) throws IOException, UntrustedIdentityException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
         final var timestamp = System.currentTimeMillis();
         for (var recipient : recipients) {
             if (recipient instanceof RecipientIdentifier.Single) {
@@ -760,20 +600,6 @@ public class Manager implements Closeable {
         }
     }
 
-    SendGroupMessageResults sendGroupInfoMessage(
-            GroupIdV1 groupId, SignalServiceAddress recipient
-    ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
-        final var recipientId = resolveRecipient(recipient);
-        return groupHelper.sendGroupInfoMessage(groupId, recipientId);
-    }
-
-    SendGroupMessageResults sendGroupInfoRequest(
-            GroupIdV1 groupId, SignalServiceAddress recipient
-    ) throws IOException {
-        final var recipientId = resolveRecipient(recipient);
-        return groupHelper.sendGroupInfoRequest(groupId, recipientId);
-    }
-
     public void sendReadReceipt(
             RecipientIdentifier.Single sender, List<Long> messageIds
     ) throws IOException, UntrustedIdentityException {
@@ -794,19 +620,9 @@ public class Manager implements Closeable {
         sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(sender));
     }
 
-    void sendDeliveryReceipt(
-            SignalServiceAddress remoteAddress, List<Long> messageIds
-    ) throws IOException, UntrustedIdentityException {
-        var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
-                messageIds,
-                System.currentTimeMillis());
-
-        sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(remoteAddress));
-    }
-
     public SendMessageResults sendMessage(
             Message message, Set<RecipientIdentifier> recipients
-    ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException {
+    ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
         final var messageBuilder = SignalServiceDataMessage.newBuilder();
         applyMessage(messageBuilder, message);
         return sendMessage(messageBuilder, recipients);
@@ -816,27 +632,15 @@ public class Manager implements Closeable {
             final SignalServiceDataMessage.Builder messageBuilder, final Message message
     ) throws AttachmentInvalidException, IOException {
         messageBuilder.withBody(message.getMessageText());
-        if (message.getAttachments() != null) {
-            var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(message.getAttachments());
-
-            // Upload attachments here, so we only upload once even for multiple recipients
-            var messageSender = dependencies.getMessageSender();
-            var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
-            for (var attachment : attachmentStreams) {
-                if (attachment.isStream()) {
-                    attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
-                } else if (attachment.isPointer()) {
-                    attachmentPointers.add(attachment.asPointer());
-                }
-            }
-
-            messageBuilder.withAttachments(attachmentPointers);
+        final var attachments = message.getAttachments();
+        if (attachments != null) {
+            messageBuilder.withAttachments(attachmentHelper.uploadAttachments(attachments));
         }
     }
 
     public SendMessageResults sendRemoteDeleteMessage(
             long targetSentTimestamp, Set<RecipientIdentifier> recipients
-    ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
+    ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
         return sendMessage(messageBuilder, recipients);
@@ -848,7 +652,7 @@ public class Manager implements Closeable {
             RecipientIdentifier.Single targetAuthor,
             long targetSentTimestamp,
             Set<RecipientIdentifier> recipients
-    ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
+    ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
         var targetAuthorRecipientId = resolveRecipient(targetAuthor);
         var reaction = new SignalServiceDataMessage.Reaction(emoji,
                 remove,
@@ -864,60 +668,42 @@ public class Manager implements Closeable {
         try {
             return sendMessage(messageBuilder,
                     recipients.stream().map(RecipientIdentifier.class::cast).collect(Collectors.toSet()));
-        } catch (GroupNotFoundException | NotAGroupMemberException e) {
+        } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
             throw new AssertionError(e);
         } finally {
             for (var recipient : recipients) {
-                final var recipientId = resolveRecipient((RecipientIdentifier.Single) recipient);
-                handleEndSession(recipientId);
+                final var recipientId = resolveRecipient(recipient);
+                account.getSessionStore().deleteAllSessions(recipientId);
             }
         }
     }
 
-    void renewSession(RecipientId recipientId) throws IOException {
-        account.getSessionStore().archiveSessions(recipientId);
-        if (!recipientId.equals(getSelfRecipientId())) {
-            sendHelper.sendNullMessage(recipientId);
-        }
-    }
-
     public void setContactName(
             RecipientIdentifier.Single recipient, String name
-    ) throws NotMasterDeviceException {
+    ) throws NotMasterDeviceException, UnregisteredUserException {
         if (!account.isMasterDevice()) {
             throw new NotMasterDeviceException();
         }
-        final var recipientId = resolveRecipient(recipient);
-        var contact = account.getContactStore().getContact(recipientId);
-        final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
-        account.getContactStore().storeContact(recipientId, builder.withName(name).build());
+        contactHelper.setContactName(resolveRecipient(recipient), name);
     }
 
     public void setContactBlocked(
             RecipientIdentifier.Single recipient, boolean blocked
-    ) throws NotMasterDeviceException {
+    ) throws NotMasterDeviceException, IOException {
         if (!account.isMasterDevice()) {
             throw new NotMasterDeviceException();
         }
-        setContactBlocked(resolveRecipient(recipient), blocked);
-    }
-
-    private void setContactBlocked(RecipientId recipientId, boolean blocked) {
-        var contact = account.getContactStore().getContact(recipientId);
-        final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
+        contactHelper.setContactBlocked(resolveRecipient(recipient), blocked);
         // TODO cycle our profile key
-        account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
+        syncHelper.sendBlockedList();
     }
 
-    public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
-        var group = getGroup(groupId);
-        if (group == null) {
-            throw new GroupNotFoundException(groupId);
-        }
-
-        group.setBlocked(blocked);
+    public void setGroupBlocked(
+            final GroupId groupId, final boolean blocked
+    ) throws GroupNotFoundException, IOException {
+        groupHelper.setGroupBlocked(groupId, blocked);
         // TODO cycle our profile key
-        account.getGroupStore().updateGroup(group);
+        syncHelper.sendBlockedList();
     }
 
     /**
@@ -927,25 +713,15 @@ public class Manager implements Closeable {
             RecipientIdentifier.Single recipient, int messageExpirationTimer
     ) throws IOException {
         var recipientId = resolveRecipient(recipient);
-        setExpirationTimer(recipientId, messageExpirationTimer);
+        contactHelper.setExpirationTimer(recipientId, messageExpirationTimer);
         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
         try {
             sendMessage(messageBuilder, Set.of(recipient));
-        } catch (NotAGroupMemberException | GroupNotFoundException e) {
+        } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
             throw new AssertionError(e);
         }
     }
 
-    private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
-        var contact = account.getContactStore().getContact(recipientId);
-        if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
-            return;
-        }
-        final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
-        account.getContactStore()
-                .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
-    }
-
     /**
      * Upload the sticker pack from path.
      *
@@ -978,51 +754,14 @@ public class Manager implements Closeable {
     }
 
     public void requestAllSyncData() throws IOException {
-        requestSyncGroups();
-        requestSyncContacts();
-        requestSyncBlocked();
-        requestSyncConfiguration();
-        requestSyncKeys();
-    }
-
-    private void requestSyncGroups() throws IOException {
-        var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
-                .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
-                .build();
-        var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
-        sendHelper.sendSyncMessage(message);
+        syncHelper.requestAllSyncData();
+        retrieveRemoteStorage();
     }
 
-    private void requestSyncContacts() throws IOException {
-        var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
-                .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
-                .build();
-        var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
-        sendHelper.sendSyncMessage(message);
-    }
-
-    private void requestSyncBlocked() throws IOException {
-        var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
-                .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
-                .build();
-        var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
-        sendHelper.sendSyncMessage(message);
-    }
-
-    private void requestSyncConfiguration() throws IOException {
-        var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
-                .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
-                .build();
-        var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
-        sendHelper.sendSyncMessage(message);
-    }
-
-    private void requestSyncKeys() throws IOException {
-        var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
-                .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
-                .build();
-        var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
-        sendHelper.sendSyncMessage(message);
+    void retrieveRemoteStorage() throws IOException {
+        if (account.getStorageKey() != null) {
+            storageHelper.readDataFromStorage();
+        }
     }
 
     private byte[] getSenderCertificate() {
@@ -1041,53 +780,28 @@ public class Manager implements Closeable {
         return certificate;
     }
 
-    private Set<RecipientId> getRecipientIds(Collection<RecipientIdentifier.Single> recipients) {
-        final var signalServiceAddresses = new HashSet<SignalServiceAddress>(recipients.size());
-        final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
-
-        for (var number : recipients) {
-            final var resolvedAddress = resolveSignalServiceAddress(resolveRecipient(number));
-            if (resolvedAddress.getUuid().isPresent()) {
-                signalServiceAddresses.add(resolvedAddress);
-            } else {
-                addressesMissingUuid.add(resolvedAddress);
-            }
-        }
-
-        final var numbersMissingUuid = addressesMissingUuid.stream()
-                .map(a -> a.getNumber().get())
-                .collect(Collectors.toSet());
-        Map<String, UUID> registeredUsers;
-        try {
-            registeredUsers = getRegisteredUsers(numbersMissingUuid);
-        } catch (IOException e) {
-            logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
-            registeredUsers = Map.of();
-        }
-
-        for (var address : addressesMissingUuid) {
-            final var number = address.getNumber().get();
-            if (registeredUsers.containsKey(number)) {
-                final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
-                        registeredUsers.get(number),
-                        number)));
-                signalServiceAddresses.add(newAddress);
-            } else {
-                signalServiceAddresses.add(address);
-            }
-        }
-
-        return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
-    }
-
     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
         final var address = resolveSignalServiceAddress(recipientId);
         if (!address.getNumber().isPresent()) {
             return recipientId;
         }
         final var number = address.getNumber().get();
-        final var uuidMap = getRegisteredUsers(Set.of(number));
-        return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
+        final var uuid = getRegisteredUser(number);
+        return resolveRecipientTrusted(new SignalServiceAddress(uuid, number));
+    }
+
+    private UUID getRegisteredUser(final String number) throws IOException {
+        final Map<String, UUID> uuidMap;
+        try {
+            uuidMap = getRegisteredUsers(Set.of(number));
+        } catch (NumberFormatException e) {
+            throw new UnregisteredUserException(number, e);
+        }
+        final var uuid = uuidMap.get(number);
+        if (uuid == null) {
+            throw new UnregisteredUserException(number, null);
+        }
+        return uuid;
     }
 
     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
@@ -1109,166 +823,10 @@ public class Manager implements Closeable {
 
     public void sendTypingMessage(
             TypingAction action, Set<RecipientIdentifier> recipients
-    ) throws IOException, UntrustedIdentityException, NotAGroupMemberException, GroupNotFoundException {
+    ) throws IOException, UntrustedIdentityException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
         sendTypingMessage(action.toSignalService(), recipients);
     }
 
-    private void handleEndSession(RecipientId recipientId) {
-        account.getSessionStore().deleteAllSessions(recipientId);
-    }
-
-    private List<HandleAction> handleSignalServiceDataMessage(
-            SignalServiceDataMessage message,
-            boolean isSync,
-            SignalServiceAddress source,
-            SignalServiceAddress destination,
-            boolean ignoreAttachments
-    ) {
-        var actions = new ArrayList<HandleAction>();
-        if (message.getGroupContext().isPresent()) {
-            if (message.getGroupContext().get().getGroupV1().isPresent()) {
-                var groupInfo = message.getGroupContext().get().getGroupV1().get();
-                var groupId = GroupId.v1(groupInfo.getGroupId());
-                var group = getGroup(groupId);
-                if (group == null || group instanceof GroupInfoV1) {
-                    var groupV1 = (GroupInfoV1) group;
-                    switch (groupInfo.getType()) {
-                        case UPDATE: {
-                            if (groupV1 == null) {
-                                groupV1 = new GroupInfoV1(groupId);
-                            }
-
-                            if (groupInfo.getAvatar().isPresent()) {
-                                var avatar = groupInfo.getAvatar().get();
-                                downloadGroupAvatar(groupV1.getGroupId(), avatar);
-                            }
-
-                            if (groupInfo.getName().isPresent()) {
-                                groupV1.name = groupInfo.getName().get();
-                            }
-
-                            if (groupInfo.getMembers().isPresent()) {
-                                groupV1.addMembers(groupInfo.getMembers()
-                                        .get()
-                                        .stream()
-                                        .map(this::resolveRecipient)
-                                        .collect(Collectors.toSet()));
-                            }
-
-                            account.getGroupStore().updateGroup(groupV1);
-                            break;
-                        }
-                        case DELIVER:
-                            if (groupV1 == null && !isSync) {
-                                actions.add(new SendGroupInfoRequestAction(source, groupId));
-                            }
-                            break;
-                        case QUIT: {
-                            if (groupV1 != null) {
-                                groupV1.removeMember(resolveRecipient(source));
-                                account.getGroupStore().updateGroup(groupV1);
-                            }
-                            break;
-                        }
-                        case REQUEST_INFO:
-                            if (groupV1 != null && !isSync) {
-                                actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
-                            }
-                            break;
-                    }
-                } else {
-                    // Received a group v1 message for a v2 group
-                }
-            }
-            if (message.getGroupContext().get().getGroupV2().isPresent()) {
-                final var groupContext = message.getGroupContext().get().getGroupV2().get();
-                final var groupMasterKey = groupContext.getMasterKey();
-
-                groupHelper.getOrMigrateGroup(groupMasterKey,
-                        groupContext.getRevision(),
-                        groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
-            }
-        }
-
-        final var conversationPartnerAddress = isSync ? destination : source;
-        if (conversationPartnerAddress != null && message.isEndSession()) {
-            handleEndSession(resolveRecipient(conversationPartnerAddress));
-        }
-        if (message.isExpirationUpdate() || message.getBody().isPresent()) {
-            if (message.getGroupContext().isPresent()) {
-                if (message.getGroupContext().get().getGroupV1().isPresent()) {
-                    var groupInfo = message.getGroupContext().get().getGroupV1().get();
-                    var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(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 if (conversationPartnerAddress != null) {
-                setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
-            }
-        }
-        if (!ignoreAttachments) {
-            if (message.getAttachments().isPresent()) {
-                for (var attachment : message.getAttachments().get()) {
-                    downloadAttachment(attachment);
-                }
-            }
-            if (message.getSharedContacts().isPresent()) {
-                for (var contact : message.getSharedContacts().get()) {
-                    if (contact.getAvatar().isPresent()) {
-                        downloadAttachment(contact.getAvatar().get().getAttachment());
-                    }
-                }
-            }
-        }
-        if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
-            final ProfileKey profileKey;
-            try {
-                profileKey = new ProfileKey(message.getProfileKey().get());
-            } catch (InvalidInputException e) {
-                throw new AssertionError(e);
-            }
-            if (source.matches(account.getSelfAddress())) {
-                this.account.setProfileKey(profileKey);
-            }
-            this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
-        }
-        if (message.getPreviews().isPresent()) {
-            final var previews = message.getPreviews().get();
-            for (var preview : previews) {
-                if (preview.getImage().isPresent()) {
-                    downloadAttachment(preview.getImage().get());
-                }
-            }
-        }
-        if (message.getQuote().isPresent()) {
-            final var quote = message.getQuote().get();
-
-            for (var quotedAttachment : quote.getAttachments()) {
-                final var thumbnail = quotedAttachment.getThumbnail();
-                if (thumbnail != null) {
-                    downloadAttachment(thumbnail);
-                }
-            }
-        }
-        if (message.getSticker().isPresent()) {
-            final var messageSticker = message.getSticker().get();
-            final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
-            var sticker = account.getStickerStore().getSticker(stickerPackId);
-            if (sticker == null) {
-                sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
-                account.getStickerStore().updateSticker(sticker);
-            }
-            enqueueJob(new RetrieveStickerPackJob(stickerPackId, messageSticker.getPackKey()));
-        }
-        return actions;
-    }
-
     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
         Set<HandleAction> queuedActions = new HashSet<>();
         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
@@ -1285,32 +843,33 @@ public class Manager implements Closeable {
     ) {
         var envelope = cachedMessage.loadEnvelope();
         if (envelope == null) {
+            cachedMessage.delete();
             return null;
         }
-        SignalServiceContent content = null;
-        List<HandleAction> actions = null;
-        if (!envelope.isReceipt()) {
-            try {
-                content = dependencies.getCipher().decrypt(envelope);
-            } catch (ProtocolUntrustedIdentityException e) {
-                if (!envelope.hasSource()) {
-                    final var identifier = e.getSender();
-                    final var recipientId = resolveRecipient(identifier);
-                    try {
-                        account.getMessageCache().replaceSender(cachedMessage, recipientId);
-                    } catch (IOException ioException) {
-                        logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
-                    }
-                }
-                return null;
-            } catch (Exception er) {
-                // All other errors are not recoverable, so delete the cached message
+
+        final var result = incomingMessageHandler.handleRetryEnvelope(envelope, ignoreAttachments, handler);
+        final var actions = result.first();
+        final var exception = result.second();
+
+        if (exception instanceof UntrustedIdentityException) {
+            if (System.currentTimeMillis() - envelope.getServerDeliveredTimestamp() > 1000L * 60 * 60 * 24 * 30) {
+                // Envelope is more than a month old, cleaning up.
                 cachedMessage.delete();
                 return null;
             }
-            actions = handleMessage(envelope, content, ignoreAttachments);
+            if (!envelope.hasSourceUuid()) {
+                final var identifier = ((UntrustedIdentityException) exception).getSender();
+                final var recipientId = account.getRecipientStore().resolveRecipient(identifier);
+                try {
+                    account.getMessageCache().replaceSender(cachedMessage, recipientId);
+                } catch (IOException ioException) {
+                    logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
+                }
+            }
+            return null;
         }
-        handler.handleMessage(envelope, content, null);
+
+        // If successful and for all other errors that are not recoverable, delete the cached message
         cachedMessage.delete();
         return actions;
     }
@@ -1329,19 +888,17 @@ public class Manager implements Closeable {
         final var signalWebSocket = dependencies.getSignalWebSocket();
         signalWebSocket.connect();
 
-        var hasCaughtUpWithOldMessages = false;
+        hasCaughtUpWithOldMessages = false;
 
         while (!Thread.interrupted()) {
             SignalServiceEnvelope envelope;
-            SignalServiceContent content = null;
-            Exception exception = null;
             final CachedMessage[] cachedMessage = {null};
             account.setLastReceiveTimestamp(System.currentTimeMillis());
             logger.debug("Checking for new message from server");
             try {
                 var result = signalWebSocket.readOrEmpty(unit.toMillis(timeout), envelope1 -> {
-                    final var recipientId = envelope1.hasSource()
-                            ? resolveRecipient(envelope1.getSourceIdentifier())
+                    final var recipientId = envelope1.hasSourceUuid()
+                            ? resolveRecipient(envelope1.getSourceAddress())
                             : null;
                     // store message on disk, before acknowledging receipt to the server
                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
@@ -1351,11 +908,14 @@ public class Manager implements Closeable {
                     envelope = result.get();
                 } else {
                     // Received indicator that server queue is empty
-                    hasCaughtUpWithOldMessages = true;
-
                     handleQueuedActions(queuedActions);
                     queuedActions.clear();
 
+                    hasCaughtUpWithOldMessages = true;
+                    synchronized (this) {
+                        this.notifyAll();
+                    }
+
                     // Continue to wait another timeout for new messages
                     continue;
                 }
@@ -1375,59 +935,18 @@ public class Manager implements Closeable {
                 continue;
             }
 
-            if (envelope.hasSource()) {
-                // Store uuid if we don't have it already
-                // address/uuid in envelope is sent by server
-                resolveRecipientTrusted(envelope.getSourceAddress());
-            }
-            if (!envelope.isReceipt()) {
-                try {
-                    content = dependencies.getCipher().decrypt(envelope);
-                } catch (Exception e) {
-                    exception = e;
-                }
-                if (!envelope.hasSource() && content != null) {
-                    // Store uuid if we don't have it already
-                    // address/uuid is validated by unidentified sender certificate
-                    resolveRecipientTrusted(content.getSender());
-                }
-                var actions = handleMessage(envelope, content, ignoreAttachments);
-                if (exception instanceof ProtocolInvalidMessageException) {
-                    final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
-                    logger.debug("Received invalid message, queuing renew session action.");
-                    actions.add(new RenewSessionAction(sender));
-                }
-                if (hasCaughtUpWithOldMessages) {
-                    for (var action : actions) {
-                        try {
-                            action.execute(this);
-                        } catch (Throwable e) {
-                            if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
-                                Thread.currentThread().interrupt();
-                            }
-                            logger.warn("Message action failed.", e);
-                        }
-                    }
-                } else {
-                    queuedActions.addAll(actions);
-                }
-            }
-            final var notAllowedToSendToGroup = isNotAllowedToSendToGroup(envelope, content);
-            if (isMessageBlocked(envelope, content)) {
-                logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
-            } else if (notAllowedToSendToGroup) {
-                logger.info("Ignoring a group message from an unauthorized sender (no member or admin): {} {}",
-                        (envelope.hasSource() ? envelope.getSourceAddress() : content.getSender()).getIdentifier(),
-                        envelope.getTimestamp());
-            } else {
-                handler.handleMessage(envelope, content, exception);
+            final var result = incomingMessageHandler.handleEnvelope(envelope, ignoreAttachments, handler);
+            queuedActions.addAll(result.first());
+            final var exception = result.second();
+
+            if (hasCaughtUpWithOldMessages) {
+                handleQueuedActions(queuedActions);
             }
             if (cachedMessage[0] != null) {
-                if (exception instanceof ProtocolUntrustedIdentityException) {
-                    final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
-                    final var recipientId = resolveRecipient(identifier);
-                    queuedActions.add(new RetrieveProfileAction(recipientId));
-                    if (!envelope.hasSource()) {
+                if (exception instanceof UntrustedIdentityException) {
+                    final var address = ((UntrustedIdentityException) exception).getSender();
+                    final var recipientId = resolveRecipient(address);
+                    if (!envelope.hasSourceUuid()) {
                         try {
                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
                         } catch (IOException ioException) {
@@ -1443,612 +962,45 @@ public class Manager implements Closeable {
         handleQueuedActions(queuedActions);
     }
 
-    private void handleQueuedActions(final Set<HandleAction> queuedActions) {
+    public boolean hasCaughtUpWithOldMessages() {
+        return hasCaughtUpWithOldMessages;
+    }
+
+    private void handleQueuedActions(final Collection<HandleAction> queuedActions) {
+        var interrupted = false;
         for (var action : queuedActions) {
             try {
-                action.execute(this);
+                action.execute(context);
             } catch (Throwable e) {
-                if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
-                    Thread.currentThread().interrupt();
+                if ((e instanceof AssertionError || e instanceof RuntimeException)
+                        && e.getCause() instanceof InterruptedException) {
+                    interrupted = true;
+                    continue;
                 }
                 logger.warn("Message action failed.", e);
             }
         }
-    }
-
-    private boolean isMessageBlocked(
-            SignalServiceEnvelope envelope, SignalServiceContent content
-    ) {
-        SignalServiceAddress source;
-        if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
-            source = envelope.getSourceAddress();
-        } else if (content != null) {
-            source = content.getSender();
-        } else {
-            return false;
-        }
-        final var recipientId = resolveRecipient(source);
-        if (isContactBlocked(recipientId)) {
-            return true;
+        if (interrupted) {
+            Thread.currentThread().interrupt();
         }
-
-        if (content != null && content.getDataMessage().isPresent()) {
-            var message = content.getDataMessage().get();
-            if (message.getGroupContext().isPresent()) {
-                var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
-                var group = getGroup(groupId);
-                if (group != null && group.isBlocked()) {
-                    return true;
-                }
-            }
-        }
-        return false;
     }
 
     public boolean isContactBlocked(final RecipientIdentifier.Single recipient) {
-        final var recipientId = resolveRecipient(recipient);
-        return isContactBlocked(recipientId);
-    }
-
-    private boolean isContactBlocked(final RecipientId recipientId) {
-        var sourceContact = account.getContactStore().getContact(recipientId);
-        return sourceContact != null && sourceContact.isBlocked();
-    }
-
-    private boolean isNotAllowedToSendToGroup(
-            SignalServiceEnvelope envelope, SignalServiceContent content
-    ) {
-        SignalServiceAddress source;
-        if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
-            source = envelope.getSourceAddress();
-        } else if (content != null) {
-            source = content.getSender();
-        } else {
-            return false;
-        }
-
-        if (content == null || !content.getDataMessage().isPresent()) {
-            return false;
-        }
-
-        var message = content.getDataMessage().get();
-        if (!message.getGroupContext().isPresent()) {
-            return false;
-        }
-
-        if (message.getGroupContext().get().getGroupV1().isPresent()) {
-            var groupInfo = message.getGroupContext().get().getGroupV1().get();
-            if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
-                return false;
-            }
-        }
-
-        var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
-        var group = getGroup(groupId);
-        if (group == null) {
-            return false;
-        }
-
-        final var recipientId = resolveRecipient(source);
-        return !group.isMember(recipientId) || (
-                group.isAnnouncementGroup() && !group.isAdmin(recipientId)
-        );
-    }
-
-    private List<HandleAction> handleMessage(
-            SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
-    ) {
-        var actions = new ArrayList<HandleAction>();
-        if (content != null) {
-            final SignalServiceAddress sender;
-            if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
-                sender = envelope.getSourceAddress();
-            } else {
-                sender = content.getSender();
-            }
-
-            if (content.getDataMessage().isPresent()) {
-                var message = content.getDataMessage().get();
-
-                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);
-                var syncMessage = content.getSyncMessage().get();
-                if (syncMessage.getSent().isPresent()) {
-                    var message = syncMessage.getSent().get();
-                    final var destination = message.getDestination().orNull();
-                    actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
-                            true,
-                            sender,
-                            destination,
-                            ignoreAttachments));
-                }
-                if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
-                    var rm = syncMessage.getRequest().get();
-                    if (rm.isContactsRequest()) {
-                        actions.add(SendSyncContactsAction.create());
-                    }
-                    if (rm.isGroupsRequest()) {
-                        actions.add(SendSyncGroupsAction.create());
-                    }
-                    if (rm.isBlockedListRequest()) {
-                        actions.add(SendSyncBlockedListAction.create());
-                    }
-                    // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
-                }
-                if (syncMessage.getGroups().isPresent()) {
-                    File tmpFile = null;
-                    try {
-                        tmpFile = IOUtils.createTempFile();
-                        final var groupsMessage = syncMessage.getGroups().get();
-                        try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
-                            var s = new DeviceGroupsInputStream(attachmentAsStream);
-                            DeviceGroup g;
-                            while (true) {
-                                try {
-                                    g = s.read();
-                                } catch (IOException e) {
-                                    logger.warn("Sync groups contained invalid group, ignoring: {}", e.getMessage());
-                                    continue;
-                                }
-                                if (g == null) {
-                                    break;
-                                }
-                                var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
-                                if (syncGroup != null) {
-                                    if (g.getName().isPresent()) {
-                                        syncGroup.name = g.getName().get();
-                                    }
-                                    syncGroup.addMembers(g.getMembers()
-                                            .stream()
-                                            .map(this::resolveRecipient)
-                                            .collect(Collectors.toSet()));
-                                    if (!g.isActive()) {
-                                        syncGroup.removeMember(account.getSelfRecipientId());
-                                    } else {
-                                        // Add ourself to the member set as it's marked as active
-                                        syncGroup.addMembers(List.of(account.getSelfRecipientId()));
-                                    }
-                                    syncGroup.blocked = g.isBlocked();
-                                    if (g.getColor().isPresent()) {
-                                        syncGroup.color = g.getColor().get();
-                                    }
-
-                                    if (g.getAvatar().isPresent()) {
-                                        downloadGroupAvatar(syncGroup.getGroupId(), g.getAvatar().get());
-                                    }
-                                    syncGroup.archived = g.isArchived();
-                                    account.getGroupStore().updateGroup(syncGroup);
-                                }
-                            }
-                        }
-                    } catch (Exception e) {
-                        logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
-                                tmpFile,
-                                e.getMessage());
-                    } finally {
-                        if (tmpFile != null) {
-                            try {
-                                Files.delete(tmpFile.toPath());
-                            } catch (IOException e) {
-                                logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
-                                        tmpFile,
-                                        e.getMessage());
-                            }
-                        }
-                    }
-                }
-                if (syncMessage.getBlockedList().isPresent()) {
-                    final var blockedListMessage = syncMessage.getBlockedList().get();
-                    for (var address : blockedListMessage.getAddresses()) {
-                        setContactBlocked(resolveRecipient(address), true);
-                    }
-                    for (var groupId : blockedListMessage.getGroupIds()
-                            .stream()
-                            .map(GroupId::unknownVersion)
-                            .collect(Collectors.toSet())) {
-                        try {
-                            setGroupBlocked(groupId, true);
-                        } catch (GroupNotFoundException e) {
-                            logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
-                                    groupId.toBase64());
-                        }
-                    }
-                }
-                if (syncMessage.getContacts().isPresent()) {
-                    File tmpFile = null;
-                    try {
-                        tmpFile = IOUtils.createTempFile();
-                        final var contactsMessage = syncMessage.getContacts().get();
-                        try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
-                                .asPointer(), tmpFile)) {
-                            var s = new DeviceContactsInputStream(attachmentAsStream);
-                            DeviceContact c;
-                            while (true) {
-                                try {
-                                    c = s.read();
-                                } catch (IOException e) {
-                                    logger.warn("Sync contacts contained invalid contact, ignoring: {}",
-                                            e.getMessage());
-                                    continue;
-                                }
-                                if (c == null) {
-                                    break;
-                                }
-                                if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
-                                    account.setProfileKey(c.getProfileKey().get());
-                                }
-                                final var recipientId = resolveRecipientTrusted(c.getAddress());
-                                var contact = account.getContactStore().getContact(recipientId);
-                                final var builder = contact == null
-                                        ? Contact.newBuilder()
-                                        : Contact.newBuilder(contact);
-                                if (c.getName().isPresent()) {
-                                    builder.withName(c.getName().get());
-                                }
-                                if (c.getColor().isPresent()) {
-                                    builder.withColor(c.getColor().get());
-                                }
-                                if (c.getProfileKey().isPresent()) {
-                                    account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
-                                }
-                                if (c.getVerified().isPresent()) {
-                                    final var verifiedMessage = c.getVerified().get();
-                                    account.getIdentityKeyStore()
-                                            .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
-                                                    verifiedMessage.getIdentityKey(),
-                                                    TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
-                                }
-                                if (c.getExpirationTimer().isPresent()) {
-                                    builder.withMessageExpirationTime(c.getExpirationTimer().get());
-                                }
-                                builder.withBlocked(c.isBlocked());
-                                builder.withArchived(c.isArchived());
-                                account.getContactStore().storeContact(recipientId, builder.build());
-
-                                if (c.getAvatar().isPresent()) {
-                                    downloadContactAvatar(c.getAvatar().get(), c.getAddress());
-                                }
-                            }
-                        }
-                    } catch (Exception e) {
-                        logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
-                                tmpFile,
-                                e.getMessage());
-                    } finally {
-                        if (tmpFile != null) {
-                            try {
-                                Files.delete(tmpFile.toPath());
-                            } catch (IOException e) {
-                                logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
-                                        tmpFile,
-                                        e.getMessage());
-                            }
-                        }
-                    }
-                }
-                if (syncMessage.getVerified().isPresent()) {
-                    final var verifiedMessage = syncMessage.getVerified().get();
-                    account.getIdentityKeyStore()
-                            .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
-                                    verifiedMessage.getIdentityKey(),
-                                    TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
-                }
-                if (syncMessage.getStickerPackOperations().isPresent()) {
-                    final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
-                    for (var m : stickerPackOperationMessages) {
-                        if (!m.getPackId().isPresent()) {
-                            continue;
-                        }
-                        final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
-                        final var installed = !m.getType().isPresent()
-                                || m.getType().get() == StickerPackOperationMessage.Type.INSTALL;
-
-                        var sticker = account.getStickerStore().getSticker(stickerPackId);
-                        if (m.getPackKey().isPresent()) {
-                            if (sticker == null) {
-                                sticker = new Sticker(stickerPackId, m.getPackKey().get());
-                            }
-                            if (installed) {
-                                enqueueJob(new RetrieveStickerPackJob(stickerPackId, m.getPackKey().get()));
-                            }
-                        }
-
-                        if (sticker != null) {
-                            sticker.setInstalled(installed);
-                            account.getStickerStore().updateSticker(sticker);
-                        }
-                    }
-                }
-                if (syncMessage.getFetchType().isPresent()) {
-                    switch (syncMessage.getFetchType().get()) {
-                        case LOCAL_PROFILE:
-                            getRecipientProfile(account.getSelfRecipientId(), true);
-                        case STORAGE_MANIFEST:
-                            // TODO
-                    }
-                }
-                if (syncMessage.getKeys().isPresent()) {
-                    final var keysMessage = syncMessage.getKeys().get();
-                    if (keysMessage.getStorageService().isPresent()) {
-                        final var storageKey = keysMessage.getStorageService().get();
-                        account.setStorageKey(storageKey);
-                    }
-                }
-                if (syncMessage.getConfiguration().isPresent()) {
-                    // TODO
-                }
-            }
-        }
-        return actions;
-    }
-
-    private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
+        final RecipientId recipientId;
         try {
-            avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
-        } catch (IOException e) {
-            logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
-        }
-    }
-
-    private void downloadGroupAvatar(GroupIdV1 groupId, SignalServiceAttachment avatar) {
-        try {
-            avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
-        } catch (IOException e) {
-            logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
-        }
-    }
-
-    private void downloadProfileAvatar(
-            SignalServiceAddress address, String avatarPath, ProfileKey profileKey
-    ) {
-        try {
-            avatarStore.storeProfileAvatar(address,
-                    outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
-        } catch (Throwable e) {
-            if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
-                Thread.currentThread().interrupt();
-            }
-            logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
+            recipientId = resolveRecipient(recipient);
+        } catch (UnregisteredUserException e) {
+            return false;
         }
+        return contactHelper.isContactBlocked(recipientId);
     }
 
     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
-        return attachmentStore.getAttachmentFile(attachmentId);
-    }
-
-    private void downloadAttachment(final SignalServiceAttachment attachment) {
-        if (!attachment.isPointer()) {
-            logger.warn("Invalid state, can't store an attachment stream.");
-        }
-
-        var pointer = attachment.asPointer();
-        if (pointer.getPreview().isPresent()) {
-            final var preview = pointer.getPreview().get();
-            try {
-                attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
-                        outputStream -> outputStream.write(preview, 0, preview.length));
-            } catch (IOException e) {
-                logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
-            }
-        }
-
-        try {
-            attachmentStore.storeAttachment(pointer.getRemoteId(),
-                    outputStream -> retrieveAttachmentPointer(pointer, outputStream));
-        } catch (IOException e) {
-            logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
-        }
-    }
-
-    private void retrieveProfileAvatar(
-            String avatarPath, ProfileKey profileKey, OutputStream outputStream
-    ) throws IOException {
-        var tmpFile = IOUtils.createTempFile();
-        try (var input = dependencies.getMessageReceiver()
-                .retrieveProfileAvatar(avatarPath,
-                        tmpFile,
-                        profileKey,
-                        ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
-            // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
-            IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
-        } finally {
-            try {
-                Files.delete(tmpFile.toPath());
-            } catch (IOException e) {
-                logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
-                        tmpFile,
-                        e.getMessage());
-            }
-        }
-    }
-
-    private void retrieveAttachment(
-            final SignalServiceAttachment attachment, final OutputStream outputStream
-    ) throws IOException {
-        if (attachment.isPointer()) {
-            var pointer = attachment.asPointer();
-            retrieveAttachmentPointer(pointer, outputStream);
-        } else {
-            var stream = attachment.asStream();
-            IOUtils.copyStream(stream.getInputStream(), outputStream);
-        }
-    }
-
-    private void retrieveAttachmentPointer(
-            SignalServiceAttachmentPointer pointer, OutputStream outputStream
-    ) throws IOException {
-        var tmpFile = IOUtils.createTempFile();
-        try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
-            IOUtils.copyStream(input, outputStream);
-        } catch (MissingConfigurationException | InvalidMessageException e) {
-            throw new IOException(e);
-        } finally {
-            try {
-                Files.delete(tmpFile.toPath());
-            } catch (IOException e) {
-                logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
-                        tmpFile,
-                        e.getMessage());
-            }
-        }
-    }
-
-    private InputStream retrieveAttachmentAsStream(
-            SignalServiceAttachmentPointer pointer, File tmpFile
-    ) throws IOException, InvalidMessageException, MissingConfigurationException {
-        return dependencies.getMessageReceiver()
-                .retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
-    }
-
-    void sendGroups() throws IOException {
-        var groupsFile = IOUtils.createTempFile();
-
-        try {
-            try (OutputStream fos = new FileOutputStream(groupsFile)) {
-                var out = new DeviceGroupsOutputStream(fos);
-                for (var record : getGroups()) {
-                    if (record instanceof GroupInfoV1) {
-                        var groupInfo = (GroupInfoV1) record;
-                        out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
-                                Optional.fromNullable(groupInfo.name),
-                                groupInfo.getMembers()
-                                        .stream()
-                                        .map(this::resolveSignalServiceAddress)
-                                        .collect(Collectors.toList()),
-                                groupHelper.createGroupAvatarAttachment(groupInfo.getGroupId()),
-                                groupInfo.isMember(account.getSelfRecipientId()),
-                                Optional.of(groupInfo.messageExpirationTime),
-                                Optional.fromNullable(groupInfo.color),
-                                groupInfo.blocked,
-                                Optional.absent(),
-                                groupInfo.archived));
-                    }
-                }
-            }
-
-            if (groupsFile.exists() && groupsFile.length() > 0) {
-                try (var groupsFileStream = new FileInputStream(groupsFile)) {
-                    var attachmentStream = SignalServiceAttachment.newStreamBuilder()
-                            .withStream(groupsFileStream)
-                            .withContentType("application/octet-stream")
-                            .withLength(groupsFile.length())
-                            .build();
-
-                    sendHelper.sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
-                }
-            }
-        } finally {
-            try {
-                Files.delete(groupsFile.toPath());
-            } catch (IOException e) {
-                logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
-            }
-        }
+        return attachmentHelper.getAttachmentFile(attachmentId);
     }
 
     public void sendContacts() throws IOException {
-        var contactsFile = IOUtils.createTempFile();
-
-        try {
-            try (OutputStream fos = new FileOutputStream(contactsFile)) {
-                var out = new DeviceContactsOutputStream(fos);
-                for (var contactPair : account.getContactStore().getContacts()) {
-                    final var recipientId = contactPair.first();
-                    final var contact = contactPair.second();
-                    final var address = resolveSignalServiceAddress(recipientId);
-
-                    var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
-                    VerifiedMessage verifiedMessage = null;
-                    if (currentIdentity != null) {
-                        verifiedMessage = new VerifiedMessage(address,
-                                currentIdentity.getIdentityKey(),
-                                currentIdentity.getTrustLevel().toVerifiedState(),
-                                currentIdentity.getDateAdded().getTime());
-                    }
-
-                    var profileKey = account.getProfileStore().getProfileKey(recipientId);
-                    out.write(new DeviceContact(address,
-                            Optional.fromNullable(contact.getName()),
-                            createContactAvatarAttachment(address),
-                            Optional.fromNullable(contact.getColor()),
-                            Optional.fromNullable(verifiedMessage),
-                            Optional.fromNullable(profileKey),
-                            contact.isBlocked(),
-                            Optional.of(contact.getMessageExpirationTime()),
-                            Optional.absent(),
-                            contact.isArchived()));
-                }
-
-                if (account.getProfileKey() != null) {
-                    // Send our own profile key as well
-                    out.write(new DeviceContact(account.getSelfAddress(),
-                            Optional.absent(),
-                            Optional.absent(),
-                            Optional.absent(),
-                            Optional.absent(),
-                            Optional.of(account.getProfileKey()),
-                            false,
-                            Optional.absent(),
-                            Optional.absent(),
-                            false));
-                }
-            }
-
-            if (contactsFile.exists() && contactsFile.length() > 0) {
-                try (var contactsFileStream = new FileInputStream(contactsFile)) {
-                    var attachmentStream = SignalServiceAttachment.newStreamBuilder()
-                            .withStream(contactsFileStream)
-                            .withContentType("application/octet-stream")
-                            .withLength(contactsFile.length())
-                            .build();
-
-                    sendHelper.sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream,
-                            true)));
-                }
-            }
-        } finally {
-            try {
-                Files.delete(contactsFile.toPath());
-            } catch (IOException e) {
-                logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
-            }
-        }
-    }
-
-    void sendBlockedList() throws IOException {
-        var addresses = new ArrayList<SignalServiceAddress>();
-        for (var record : account.getContactStore().getContacts()) {
-            if (record.second().isBlocked()) {
-                addresses.add(resolveSignalServiceAddress(record.first()));
-            }
-        }
-        var groupIds = new ArrayList<byte[]>();
-        for (var record : getGroups()) {
-            if (record.isBlocked()) {
-                groupIds.add(record.getGroupId().serialize());
-            }
-        }
-        sendHelper.sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
-    }
-
-    private void sendVerifiedMessage(
-            SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
-    ) throws IOException {
-        var verifiedMessage = new VerifiedMessage(destination,
-                identityKey,
-                trustLevel.toVerifiedState(),
-                System.currentTimeMillis());
-        sendHelper.sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
+        syncHelper.sendContacts();
     }
 
     public List<Pair<RecipientId, Contact>> getContacts() {
@@ -2056,18 +1008,21 @@ public class Manager implements Closeable {
     }
 
     public String getContactOrProfileName(RecipientIdentifier.Single recipientIdentifier) {
-        final var recipientId = resolveRecipient(recipientIdentifier);
-        final var recipient = account.getRecipientStore().getRecipient(recipientId);
-        if (recipient == null) {
+        final RecipientId recipientId;
+        try {
+            recipientId = resolveRecipient(recipientIdentifier);
+        } catch (UnregisteredUserException e) {
             return null;
         }
 
-        if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
-            return recipient.getContact().getName();
+        final var contact = account.getContactStore().getContact(recipientId);
+        if (contact != null && !Util.isEmpty(contact.getName())) {
+            return contact.getName();
         }
 
-        if (recipient.getProfile() != null && recipient.getProfile() != null) {
-            return recipient.getProfile().getDisplayName();
+        final var profile = getRecipientProfile(recipientId);
+        if (profile != null) {
+            return profile.getDisplayName();
         }
 
         return null;
@@ -2082,7 +1037,12 @@ public class Manager implements Closeable {
     }
 
     public List<IdentityInfo> getIdentities(RecipientIdentifier.Single recipient) {
-        final var identity = account.getIdentityKeyStore().getIdentity(resolveRecipient(recipient));
+        IdentityInfo identity;
+        try {
+            identity = account.getIdentityKeyStore().getIdentity(resolveRecipient(recipient));
+        } catch (UnregisteredUserException e) {
+            identity = null;
+        }
         return identity == null ? List.of() : List.of(identity);
     }
 
@@ -2093,7 +1053,12 @@ public class Manager implements Closeable {
      * @param fingerprint Fingerprint
      */
     public boolean trustIdentityVerified(RecipientIdentifier.Single recipient, byte[] fingerprint) {
-        var recipientId = resolveRecipient(recipient);
+        RecipientId recipientId;
+        try {
+            recipientId = resolveRecipient(recipient);
+        } catch (UnregisteredUserException e) {
+            return false;
+        }
         return trustIdentity(recipientId,
                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
                 TrustLevel.TRUSTED_VERIFIED);
@@ -2106,8 +1071,13 @@ public class Manager implements Closeable {
      * @param safetyNumber Safety number
      */
     public boolean trustIdentityVerifiedSafetyNumber(RecipientIdentifier.Single recipient, String safetyNumber) {
-        var recipientId = resolveRecipient(recipient);
-        var address = account.getRecipientStore().resolveServiceAddress(recipientId);
+        RecipientId recipientId;
+        try {
+            recipientId = resolveRecipient(recipient);
+        } catch (UnregisteredUserException e) {
+            return false;
+        }
+        var address = resolveSignalServiceAddress(recipientId);
         return trustIdentity(recipientId,
                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
                 TrustLevel.TRUSTED_VERIFIED);
@@ -2120,8 +1090,13 @@ public class Manager implements Closeable {
      * @param safetyNumber Scannable safety number
      */
     public boolean trustIdentityVerifiedSafetyNumber(RecipientIdentifier.Single recipient, byte[] safetyNumber) {
-        var recipientId = resolveRecipient(recipient);
-        var address = account.getRecipientStore().resolveServiceAddress(recipientId);
+        RecipientId recipientId;
+        try {
+            recipientId = resolveRecipient(recipient);
+        } catch (UnregisteredUserException e) {
+            return false;
+        }
+        var address = resolveSignalServiceAddress(recipientId);
         return trustIdentity(recipientId, identityKey -> {
             final var fingerprint = computeSafetyNumberFingerprint(address, identityKey);
             try {
@@ -2138,7 +1113,12 @@ public class Manager implements Closeable {
      * @param recipient username of the identity
      */
     public boolean trustIdentityAllKeys(RecipientIdentifier.Single recipient) {
-        var recipientId = resolveRecipient(recipient);
+        RecipientId recipientId;
+        try {
+            recipientId = resolveRecipient(recipient);
+        } catch (UnregisteredUserException e) {
+            return false;
+        }
         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
     }
 
@@ -2156,8 +1136,8 @@ public class Manager implements Closeable {
 
         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
         try {
-            var address = account.getRecipientStore().resolveServiceAddress(recipientId);
-            sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
+            var address = resolveSignalServiceAddress(recipientId);
+            syncHelper.sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
         } catch (IOException e) {
             logger.warn("Failed to send verification sync message: {}", e.getMessage());
         }
@@ -2176,7 +1156,7 @@ public class Manager implements Closeable {
             }
         } else {
             // Retrieve profile to get the current identity key from the server
-            retrieveEncryptedProfile(recipientId);
+            profileHelper.refreshRecipientProfile(recipientId);
         }
     }
 
@@ -2200,48 +1180,57 @@ public class Manager implements Closeable {
                 theirIdentityKey);
     }
 
-    @Deprecated
-    public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
-        var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
-
-        return resolveSignalServiceAddress(address);
-    }
-
-    @Deprecated
     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
-        if (address.matches(account.getSelfAddress())) {
-            return account.getSelfAddress();
-        }
+        return resolveSignalServiceAddress(resolveRecipient(address));
+    }
 
-        return account.getRecipientStore().resolveServiceAddress(address);
+    public SignalServiceAddress resolveSignalServiceAddress(UUID uuid) {
+        return resolveSignalServiceAddress(account.getRecipientStore().resolveRecipient(uuid));
     }
 
     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
-        return account.getRecipientStore().resolveServiceAddress(recipientId);
-    }
+        final var address = account.getRecipientStore().resolveRecipientAddress(recipientId);
+        if (address.getUuid().isPresent()) {
+            return address.toSignalServiceAddress();
+        }
 
-    private String canonicalizePhoneNumber(final String number) throws InvalidNumberException {
-        return PhoneNumberFormatter.formatNumber(number, account.getUsername());
+        // Address in recipient store doesn't have a uuid, this shouldn't happen
+        // Try to retrieve the uuid from the server
+        final var number = address.getNumber().get();
+        try {
+            return resolveSignalServiceAddress(getRegisteredUser(number));
+        } catch (IOException e) {
+            logger.warn("Failed to get uuid for e164 number: {}", number, e);
+            // Return SignalServiceAddress with unknown UUID
+            return address.toSignalServiceAddress();
+        }
     }
 
-    private RecipientId resolveRecipient(final String identifier) {
-        var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
-
-        return resolveRecipient(address);
+    private Set<RecipientId> resolveRecipients(Collection<RecipientIdentifier.Single> recipients) throws UnregisteredUserException {
+        final var recipientIds = new HashSet<RecipientId>(recipients.size());
+        for (var number : recipients) {
+            final var recipientId = resolveRecipient(number);
+            recipientIds.add(recipientId);
+        }
+        return recipientIds;
     }
 
-    private RecipientId resolveRecipient(final RecipientIdentifier.Single recipient) {
-        final SignalServiceAddress address;
+    private RecipientId resolveRecipient(final RecipientIdentifier.Single recipient) throws UnregisteredUserException {
         if (recipient instanceof RecipientIdentifier.Uuid) {
-            address = new SignalServiceAddress(((RecipientIdentifier.Uuid) recipient).uuid, null);
+            return account.getRecipientStore().resolveRecipient(((RecipientIdentifier.Uuid) recipient).uuid);
         } else {
-            address = new SignalServiceAddress(null, ((RecipientIdentifier.Number) recipient).number);
+            final var number = ((RecipientIdentifier.Number) recipient).number;
+            return account.getRecipientStore().resolveRecipient(number, () -> {
+                try {
+                    return getRegisteredUser(number);
+                } catch (IOException e) {
+                    return null;
+                }
+            });
         }
-
-        return resolveRecipient(address);
     }
 
-    public RecipientId resolveRecipient(SignalServiceAddress address) {
+    private RecipientId resolveRecipient(SignalServiceAddress address) {
         return account.getRecipientStore().resolveRecipient(address);
     }
 
@@ -2249,20 +1238,12 @@ public class Manager implements Closeable {
         return account.getRecipientStore().resolveRecipientTrusted(address);
     }
 
-    private void enqueueJob(Job job) {
-        var context = new Context(account,
-                dependencies.getAccountManager(),
-                dependencies.getMessageReceiver(),
-                stickerPackStore);
-        job.run(context);
-    }
-
     @Override
     public void close() throws IOException {
         close(true);
     }
 
-    void close(boolean closeAccount) throws IOException {
+    private void close(boolean closeAccount) throws IOException {
         executor.shutdown();
 
         dependencies.getSignalWebSocket().disconnect();