X-Git-Url: https://git.nmode.ca/signal-cli/blobdiff_plain/bfb51e414b42c69538498e1aa5cbb7421138d5e2..6c9f26f49b46d39421e822cf0be6b299f161c5bf:/src/main/java/org/asamk/signal/Manager.java?ds=inline diff --git a/src/main/java/org/asamk/signal/Manager.java b/src/main/java/org/asamk/signal/Manager.java index 3ce9dfbe..34bb5068 100644 --- a/src/main/java/org/asamk/signal/Manager.java +++ b/src/main/java/org/asamk/signal/Manager.java @@ -31,6 +31,8 @@ import org.whispersystems.libsignal.*; import org.whispersystems.libsignal.ecc.Curve; import org.whispersystems.libsignal.ecc.ECKeyPair; import org.whispersystems.libsignal.ecc.ECPublicKey; +import org.whispersystems.libsignal.fingerprint.Fingerprint; +import org.whispersystems.libsignal.fingerprint.NumericFingerprintGenerator; import org.whispersystems.libsignal.state.PreKeyRecord; import org.whispersystems.libsignal.state.SignedPreKeyRecord; import org.whispersystems.libsignal.util.KeyHelper; @@ -44,6 +46,7 @@ import org.whispersystems.signalservice.api.crypto.SignalServiceCipher; import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException; import org.whispersystems.signalservice.api.messages.*; import org.whispersystems.signalservice.api.messages.multidevice.*; +import org.whispersystems.signalservice.api.push.ContactTokenDetails; import org.whispersystems.signalservice.api.push.SignalServiceAddress; import org.whispersystems.signalservice.api.push.TrustStore; import org.whispersystems.signalservice.api.push.exceptions.*; @@ -60,12 +63,17 @@ import java.nio.channels.Channels; import java.nio.channels.FileChannel; import java.nio.channels.FileLock; import java.nio.file.Files; +import java.nio.file.Path; import java.nio.file.Paths; import java.nio.file.StandardCopyOption; +import java.nio.file.attribute.PosixFilePermission; +import java.nio.file.attribute.PosixFilePermissions; import java.util.*; import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeoutException; +import static java.nio.file.attribute.PosixFilePermission.*; + class Manager implements Signal { private final static String URL = "https://textsecure-service.whispersystems.org"; private final static TrustStore TRUST_STORE = new WhisperTrustStore(); @@ -119,15 +127,52 @@ class Manager implements Signal { return username; } + private IdentityKey getIdentity() { + return signalProtocolStore.getIdentityKeyPair().getPublicKey(); + } + public int getDeviceId() { return deviceId; } public String getFileName() { - new File(dataPath).mkdirs(); return dataPath + "/" + username; } + private String getMessageCachePath() { + return this.dataPath + "/" + username + ".d/msg-cache"; + } + + private String getMessageCachePath(String sender) { + return getMessageCachePath() + "/" + sender.replace("/", "_"); + } + + private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException { + String cachePath = getMessageCachePath(sender); + createPrivateDirectories(cachePath); + return new File(cachePath + "/" + now + "_" + timestamp); + } + + private static void createPrivateDirectories(String path) throws IOException { + final Path file = new File(path).toPath(); + try { + Set perms = EnumSet.of(OWNER_READ, OWNER_WRITE, OWNER_EXECUTE); + Files.createDirectories(file, PosixFilePermissions.asFileAttribute(perms)); + } catch (UnsupportedOperationException e) { + Files.createDirectories(file); + } + } + + private static void createPrivateFile(String path) throws IOException { + final Path file = new File(path).toPath(); + try { + Set perms = EnumSet.of(OWNER_READ, OWNER_WRITE); + Files.createFile(file, PosixFilePermissions.asFileAttribute(perms)); + } catch (UnsupportedOperationException e) { + Files.createFile(file); + } + } + public boolean userExists() { if (username == null) { return false; @@ -153,6 +198,10 @@ class Manager implements Signal { if (fileChannel != null) return; + createPrivateDirectories(dataPath); + if (!new File(getFileName()).exists()) { + createPrivateFile(getFileName()); + } fileChannel = new RandomAccessFile(new File(getFileName()), "rw").getChannel(); lock = fileChannel.tryLock(); if (lock == null) { @@ -162,7 +211,23 @@ class Manager implements Signal { } } - public void load() throws IOException, InvalidKeyException { + public void init() throws IOException { + load(); + + migrateLegacyConfigs(); + + accountManager = new SignalServiceAccountManager(URL, TRUST_STORE, username, password, deviceId, USER_AGENT); + try { + if (registered && accountManager.getPreKeysCount() < PREKEY_MINIMUM_COUNT) { + refreshPreKeys(); + save(); + } + } catch (AuthorizationFailedException e) { + System.err.println("Authorization failed, was the number registered elsewhere?"); + } + } + + private void load() throws IOException { openFileChannel(); JsonNode rootNode = jsonProcessot.readTree(Channels.newInputStream(fileChannel)); @@ -194,42 +259,35 @@ class Manager implements Signal { if (groupStore == null) { groupStore = new JsonGroupStore(); } + + JsonNode contactStoreNode = rootNode.get("contactStore"); + if (contactStoreNode != null) { + contactStore = jsonProcessot.convertValue(contactStoreNode, JsonContactsStore.class); + } + if (contactStore == null) { + contactStore = new JsonContactsStore(); + } + } + + private void migrateLegacyConfigs() { // Copy group avatars that were previously stored in the attachments folder // to the new avatar folder - if (groupStore.groupsWithLegacyAvatarId.size() > 0) { - for (GroupInfo g : groupStore.groupsWithLegacyAvatarId) { + if (JsonGroupStore.groupsWithLegacyAvatarId.size() > 0) { + for (GroupInfo g : JsonGroupStore.groupsWithLegacyAvatarId) { File avatarFile = getGroupAvatarFile(g.groupId); File attachmentFile = getAttachmentFile(g.getAvatarId()); if (!avatarFile.exists() && attachmentFile.exists()) { try { - new File(avatarsPath).mkdirs(); + createPrivateDirectories(avatarsPath); Files.copy(attachmentFile.toPath(), avatarFile.toPath(), StandardCopyOption.REPLACE_EXISTING); } catch (Exception e) { // Ignore } } } - groupStore.groupsWithLegacyAvatarId.clear(); + JsonGroupStore.groupsWithLegacyAvatarId.clear(); save(); } - - JsonNode contactStoreNode = rootNode.get("contactStore"); - if (contactStoreNode != null) { - contactStore = jsonProcessot.convertValue(contactStoreNode, JsonContactsStore.class); - } - if (contactStore == null) { - contactStore = new JsonContactsStore(); - } - - accountManager = new SignalServiceAccountManager(URL, TRUST_STORE, username, password, deviceId, USER_AGENT); - try { - if (registered && accountManager.getPreKeysCount() < PREKEY_MINIMUM_COUNT) { - refreshPreKeys(); - save(); - } - } catch (AuthorizationFailedException e) { - System.err.println("Authorization failed, was the number registered elsewhere?"); - } } private void save() { @@ -487,6 +545,19 @@ class Manager implements Signal { return Optional.of(createAttachment(file)); } + private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException { + GroupInfo g = groupStore.getGroup(groupId); + if (g == null) { + throw new GroupNotFoundException(groupId); + } + for (String member : g.members) { + if (member.equals(this.username)) { + return g; + } + } + throw new NotAGroupMemberException(groupId, g.name); + } + @Override public void sendGroupMessage(String messageText, List attachments, byte[] groupId) @@ -503,10 +574,7 @@ class Manager implements Signal { } SignalServiceDataMessage message = messageBuilder.build(); - GroupInfo g = groupStore.getGroup(groupId); - if (g == null) { - throw new GroupNotFoundException(groupId); - } + final GroupInfo g = getGroupForSending(groupId); // Don't send group message to ourself final List membersSend = new ArrayList<>(g.members); @@ -523,16 +591,25 @@ class Manager implements Signal { .asGroupMessage(group) .build(); - final GroupInfo g = groupStore.getGroup(groupId); - if (g == null) { - throw new GroupNotFoundException(groupId); - } + final GroupInfo g = getGroupForSending(groupId); g.members.remove(this.username); groupStore.updateGroup(g); sendMessage(message, g.members); } + private static String join(CharSequence separator, Iterable list) { + StringBuilder buf = new StringBuilder(); + for (CharSequence str : list) { + if (buf.length() > 0) { + buf.append(separator); + } + buf.append(str); + } + + return buf.toString(); + } + public byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException { GroupInfo g; if (groupId == null) { @@ -540,10 +617,7 @@ class Manager implements Signal { g = new GroupInfo(Util.getSecretBytes(16)); g.members.add(username); } else { - g = groupStore.getGroup(groupId); - if (g == null) { - throw new GroupNotFoundException(groupId); - } + g = getGroupForSending(groupId); } if (name != null) { @@ -551,14 +625,30 @@ class Manager implements Signal { } if (members != null) { + Set newMembers = new HashSet<>(); for (String member : members) { try { - g.members.add(canonicalizeNumber(member)); + member = canonicalizeNumber(member); } catch (InvalidNumberException e) { System.err.println("Failed to add member \"" + member + "\" to group: " + e.getMessage()); System.err.println("Aborting…"); System.exit(1); } + if (g.members.contains(member)) { + continue; + } + newMembers.add(member); + g.members.add(member); + } + final List contacts = accountManager.getContacts(newMembers); + if (contacts.size() != newMembers.size()) { + // Some of the new members are not registered on Signal + for (ContactTokenDetails contact : contacts) { + newMembers.remove(contact.getNumber()); + } + System.err.println("Failed to add members " + join(", ", newMembers) + " to group: Not registered on Signal"); + System.err.println("Aborting…"); + System.exit(1); } } @@ -569,7 +659,7 @@ class Manager implements Signal { File aFile = getGroupAvatarFile(g.groupId); if (avatarFile != null) { - new File(avatarsPath).mkdirs(); + createPrivateDirectories(avatarsPath); Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING); } if (aFile.exists()) { @@ -717,11 +807,8 @@ class Manager implements Signal { try { return cipher.decrypt(envelope); } catch (org.whispersystems.libsignal.UntrustedIdentityException e) { - // TODO temporarily store message, until user has accepted the key signalProtocolStore.saveIdentity(e.getName(), e.getUntrustedIdentity(), TrustLevel.UNTRUSTED); throw e; - } catch (Exception e) { - throw e; } } @@ -730,7 +817,7 @@ class Manager implements Signal { } public interface ReceiveMessageHandler { - void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent); + void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e); } private void handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, String source, String destination) { @@ -792,7 +879,49 @@ class Manager implements Signal { } } + public void retryFailedReceivedMessages(ReceiveMessageHandler handler) { + final File cachePath = new File(getMessageCachePath()); + if (!cachePath.exists()) { + return; + } + for (final File dir : cachePath.listFiles()) { + if (!dir.isDirectory()) { + continue; + } + + String sender = dir.getName(); + for (final File fileEntry : dir.listFiles()) { + if (!fileEntry.isFile()) { + continue; + } + SignalServiceEnvelope envelope; + try { + envelope = loadEnvelope(fileEntry); + if (envelope == null) { + continue; + } + } catch (IOException e) { + e.printStackTrace(); + continue; + } + SignalServiceContent content = null; + if (!envelope.isReceipt()) { + try { + content = decryptMessage(envelope); + } catch (Exception e) { + continue; + } + handleMessage(envelope, content); + } + save(); + handler.handleMessage(envelope, content, null); + fileEntry.delete(); + } + } + } + public void receiveMessages(int timeoutSeconds, boolean returnOnTimeout, ReceiveMessageHandler handler) throws IOException { + retryFailedReceivedMessages(handler); final SignalServiceMessageReceiver messageReceiver = new SignalServiceMessageReceiver(URL, TRUST_STORE, username, password, deviceId, signalingKey, USER_AGENT); SignalServiceMessagePipe messagePipe = null; @@ -802,99 +931,47 @@ class Manager implements Signal { while (true) { SignalServiceEnvelope envelope; SignalServiceContent content = null; + Exception exception = null; + final long now = new Date().getTime(); try { - envelope = messagePipe.read(timeoutSeconds, TimeUnit.SECONDS); - if (!envelope.isReceipt()) { - Exception exception; - try { - content = decryptMessage(envelope); - } catch (Exception e) { - exception = e; - // TODO pass exception to handler instead - e.printStackTrace(); - } - if (content != null) { - if (content.getDataMessage().isPresent()) { - SignalServiceDataMessage message = content.getDataMessage().get(); - handleSignalServiceDataMessage(message, false, envelope.getSource(), username); - } - if (content.getSyncMessage().isPresent()) { - SignalServiceSyncMessage syncMessage = content.getSyncMessage().get(); - if (syncMessage.getSent().isPresent()) { - SignalServiceDataMessage message = syncMessage.getSent().get().getMessage(); - handleSignalServiceDataMessage(message, true, envelope.getSource(), syncMessage.getSent().get().getDestination().get()); - } - if (syncMessage.getRequest().isPresent()) { - RequestMessage rm = syncMessage.getRequest().get(); - if (rm.isContactsRequest()) { - try { - sendContacts(); - } catch (UntrustedIdentityException e) { - e.printStackTrace(); - } - } - if (rm.isGroupsRequest()) { - try { - sendGroups(); - } catch (UntrustedIdentityException e) { - e.printStackTrace(); - } - } - } - if (syncMessage.getGroups().isPresent()) { - try { - DeviceGroupsInputStream s = new DeviceGroupsInputStream(retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer())); - DeviceGroup g; - while ((g = s.read()) != null) { - GroupInfo syncGroup = groupStore.getGroup(g.getId()); - if (syncGroup == null) { - syncGroup = new GroupInfo(g.getId()); - } - if (g.getName().isPresent()) { - syncGroup.name = g.getName().get(); - } - syncGroup.members.addAll(g.getMembers()); - syncGroup.active = g.isActive(); - - if (g.getAvatar().isPresent()) { - retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId); - } - groupStore.updateGroup(syncGroup); - } - } catch (Exception e) { - e.printStackTrace(); - } - } - if (syncMessage.getContacts().isPresent()) { - try { - DeviceContactsInputStream s = new DeviceContactsInputStream(retrieveAttachmentAsStream(syncMessage.getContacts().get().asPointer())); - DeviceContact c; - while ((c = s.read()) != null) { - ContactInfo contact = new ContactInfo(); - contact.number = c.getNumber(); - if (c.getName().isPresent()) { - contact.name = c.getName().get(); - } - contactStore.updateContact(contact); - - if (c.getAvatar().isPresent()) { - retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number); - } - } - } catch (Exception e) { - e.printStackTrace(); - } - } + envelope = messagePipe.read(timeoutSeconds, TimeUnit.SECONDS, new SignalServiceMessagePipe.MessagePipeCallback() { + @Override + public void onMessage(SignalServiceEnvelope envelope) { + // store message on disk, before acknowledging receipt to the server + try { + File cacheFile = getMessageCacheFile(envelope.getSource(), now, envelope.getTimestamp()); + storeEnvelope(envelope, cacheFile); + } catch (IOException e) { + System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage()); } } - } - save(); - handler.handleMessage(envelope, content); + }); } catch (TimeoutException e) { if (returnOnTimeout) return; + continue; } catch (InvalidVersionException e) { System.err.println("Ignoring error: " + e.getMessage()); + continue; + } + if (!envelope.isReceipt()) { + try { + content = decryptMessage(envelope); + } catch (Exception e) { + exception = e; + } + handleMessage(envelope, content); + } + save(); + handler.handleMessage(envelope, content, exception); + if (exception == null || !(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) { + try { + File cacheFile = getMessageCacheFile(envelope.getSource(), now, envelope.getTimestamp()); + cacheFile.delete(); + } catch (IOException e) { + // Ignoring + return; + } } } } finally { @@ -903,12 +980,148 @@ class Manager implements Signal { } } + private void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content) { + if (content != null) { + if (content.getDataMessage().isPresent()) { + SignalServiceDataMessage message = content.getDataMessage().get(); + handleSignalServiceDataMessage(message, false, envelope.getSource(), username); + } + if (content.getSyncMessage().isPresent()) { + SignalServiceSyncMessage syncMessage = content.getSyncMessage().get(); + if (syncMessage.getSent().isPresent()) { + SignalServiceDataMessage message = syncMessage.getSent().get().getMessage(); + handleSignalServiceDataMessage(message, true, envelope.getSource(), syncMessage.getSent().get().getDestination().get()); + } + if (syncMessage.getRequest().isPresent()) { + RequestMessage rm = syncMessage.getRequest().get(); + if (rm.isContactsRequest()) { + try { + sendContacts(); + } catch (UntrustedIdentityException | IOException e) { + e.printStackTrace(); + } + } + if (rm.isGroupsRequest()) { + try { + sendGroups(); + } catch (UntrustedIdentityException | IOException e) { + e.printStackTrace(); + } + } + } + if (syncMessage.getGroups().isPresent()) { + try { + DeviceGroupsInputStream s = new DeviceGroupsInputStream(retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer())); + DeviceGroup g; + while ((g = s.read()) != null) { + GroupInfo syncGroup = groupStore.getGroup(g.getId()); + if (syncGroup == null) { + syncGroup = new GroupInfo(g.getId()); + } + if (g.getName().isPresent()) { + syncGroup.name = g.getName().get(); + } + syncGroup.members.addAll(g.getMembers()); + syncGroup.active = g.isActive(); + + if (g.getAvatar().isPresent()) { + retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId); + } + groupStore.updateGroup(syncGroup); + } + } catch (Exception e) { + e.printStackTrace(); + } + if (syncMessage.getBlockedList().isPresent()) { + // TODO store list of blocked numbers + } + } + if (syncMessage.getContacts().isPresent()) { + try { + DeviceContactsInputStream s = new DeviceContactsInputStream(retrieveAttachmentAsStream(syncMessage.getContacts().get().asPointer())); + DeviceContact c; + while ((c = s.read()) != null) { + ContactInfo contact = new ContactInfo(); + contact.number = c.getNumber(); + if (c.getName().isPresent()) { + contact.name = c.getName().get(); + } + if (c.getColor().isPresent()) { + contact.color = c.getColor().get(); + } + contactStore.updateContact(contact); + + if (c.getAvatar().isPresent()) { + retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number); + } + } + } catch (Exception e) { + e.printStackTrace(); + } + } + } + } + } + + private SignalServiceEnvelope loadEnvelope(File file) throws IOException { + try (FileInputStream f = new FileInputStream(file)) { + DataInputStream in = new DataInputStream(f); + int version = in.readInt(); + if (version != 1) { + return null; + } + int type = in.readInt(); + String source = in.readUTF(); + int sourceDevice = in.readInt(); + String relay = in.readUTF(); + long timestamp = in.readLong(); + byte[] content = null; + int contentLen = in.readInt(); + if (contentLen > 0) { + content = new byte[contentLen]; + in.readFully(content); + } + byte[] legacyMessage = null; + int legacyMessageLen = in.readInt(); + if (legacyMessageLen > 0) { + legacyMessage = new byte[legacyMessageLen]; + in.readFully(legacyMessage); + } + return new SignalServiceEnvelope(type, source, sourceDevice, relay, timestamp, legacyMessage, content); + } + } + + private void storeEnvelope(SignalServiceEnvelope envelope, File file) throws IOException { + try (FileOutputStream f = new FileOutputStream(file)) { + DataOutputStream out = new DataOutputStream(f); + out.writeInt(1); // version + out.writeInt(envelope.getType()); + out.writeUTF(envelope.getSource()); + out.writeInt(envelope.getSourceDevice()); + out.writeUTF(envelope.getRelay()); + out.writeLong(envelope.getTimestamp()); + if (envelope.hasContent()) { + out.writeInt(envelope.getContent().length); + out.write(envelope.getContent()); + } else { + out.writeInt(0); + } + if (envelope.hasLegacyMessage()) { + out.writeInt(envelope.getLegacyMessage().length); + out.write(envelope.getLegacyMessage()); + } else { + out.writeInt(0); + } + out.close(); + } + } + public File getContactAvatarFile(String number) { return new File(avatarsPath, "contact-" + number); } private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException { - new File(avatarsPath).mkdirs(); + createPrivateDirectories(avatarsPath); if (attachment.isPointer()) { SignalServiceAttachmentPointer pointer = attachment.asPointer(); return retrieveAttachment(pointer, getContactAvatarFile(number), false); @@ -923,7 +1136,7 @@ class Manager implements Signal { } private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException { - new File(avatarsPath).mkdirs(); + createPrivateDirectories(avatarsPath); if (attachment.isPointer()) { SignalServiceAttachmentPointer pointer = attachment.asPointer(); return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false); @@ -938,7 +1151,7 @@ class Manager implements Signal { } private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException { - new File(attachmentsPath).mkdirs(); + createPrivateDirectories(attachmentsPath); return retrieveAttachment(pointer, getAttachmentFile(pointer.getId()), true); } @@ -1072,7 +1285,7 @@ class Manager implements Signal { try { for (ContactInfo record : contactStore.getContacts()) { out.write(new DeviceContact(record.number, Optional.fromNullable(record.name), - createContactAvatarAttachment(record.number))); + createContactAvatarAttachment(record.number), Optional.fromNullable(record.color))); } } finally { out.close(); @@ -1100,4 +1313,82 @@ class Manager implements Signal { public GroupInfo getGroup(byte[] groupId) { return groupStore.getGroup(groupId); } + + public Map> getIdentities() { + return signalProtocolStore.getIdentities(); + } + + public List getIdentities(String number) { + return signalProtocolStore.getIdentities(number); + } + + /** + * Trust this the identity with this fingerprint + * + * @param name username of the identity + * @param fingerprint Fingerprint + */ + public boolean trustIdentityVerified(String name, byte[] fingerprint) { + List ids = signalProtocolStore.getIdentities(name); + if (ids == null) { + return false; + } + for (JsonIdentityKeyStore.Identity id : ids) { + if (!Arrays.equals(id.identityKey.serialize(), fingerprint)) { + continue; + } + + signalProtocolStore.saveIdentity(name, id.identityKey, TrustLevel.TRUSTED_VERIFIED); + save(); + return true; + } + return false; + } + + /** + * Trust this the identity with this safety number + * + * @param name username of the identity + * @param safetyNumber Safety number + */ + public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) { + List ids = signalProtocolStore.getIdentities(name); + if (ids == null) { + return false; + } + for (JsonIdentityKeyStore.Identity id : ids) { + if (!safetyNumber.equals(computeSafetyNumber(name, id.identityKey))) { + continue; + } + + signalProtocolStore.saveIdentity(name, id.identityKey, TrustLevel.TRUSTED_VERIFIED); + save(); + return true; + } + return false; + } + + /** + * Trust all keys of this identity without verification + * + * @param name username of the identity + */ + public boolean trustIdentityAllKeys(String name) { + List ids = signalProtocolStore.getIdentities(name); + if (ids == null) { + return false; + } + for (JsonIdentityKeyStore.Identity id : ids) { + if (id.trustLevel == TrustLevel.UNTRUSTED) { + signalProtocolStore.saveIdentity(name, id.identityKey, TrustLevel.TRUSTED_UNVERIFIED); + } + } + save(); + return true; + } + + public String computeSafetyNumber(String theirUsername, IdentityKey theirIdentityKey) { + Fingerprint fingerprint = new NumericFingerprintGenerator(5200).createFor(username, getIdentity(), theirUsername, theirIdentityKey); + return fingerprint.getDisplayableFingerprint().getDisplayText(); + } }