public boolean createSessionsIfNeeded(final Conversation conversation) {
Log.i(
Config.LOGTAG,
AxolotlService.getLogprefix(account) + "Creating axolotl sessions if needed...");
boolean newSessions = false;
Set<AxolotlAddress> addresses = findDevicesWithoutSession(conversation);
for (AxolotlAddress address : addresses) {
Log.d(
Config.LOGTAG,
AxolotlService.getLogprefix(account) + "Processing device: " + address.toString());
FetchStatus status = fetchStatusMap.get(address);
if (status == null || status == FetchStatus.ERROR) {
fetchStatusMap.put(address, FetchStatus.PENDING);
this.buildSessionFromPEP(address);
newSessions = true;
} else if (status == FetchStatus.PENDING) {
newSessions = true;
} else {
Log.d(
Config.LOGTAG,
AxolotlService.getLogprefix(account)
+ "Already fetching bundle for "
+ address.toString());
}
}
return newSessions;
}
public T get(AxolotlAddress address) {
synchronized (MAP_LOCK) {
Map<Integer, T> devices = map.get(address.getName());
if (devices == null) {
return null;
}
return devices.get(address.getDeviceId());
}
}
private String getSessionName(AxolotlAddress axolotlAddress) {
Recipient recipient =
RecipientFactory.getRecipientsFromString(context, axolotlAddress.getName(), true)
.getPrimaryRecipient();
long recipientId = recipient.getRecipientId();
int deviceId = axolotlAddress.getDeviceId();
return recipientId + (deviceId == TextSecureAddress.DEFAULT_DEVICE_ID ? "" : "." + deviceId);
}
public void put(AxolotlAddress address, T value) {
synchronized (MAP_LOCK) {
Map<Integer, T> devices = map.get(address.getName());
if (devices == null) {
devices = new HashMap<>();
map.put(address.getName(), devices);
}
devices.put(address.getDeviceId(), value);
}
}
public Map<Integer, T> getAll(AxolotlAddress address) {
synchronized (MAP_LOCK) {
Map<Integer, T> devices = map.get(address.getName());
if (devices == null) {
return new HashMap<>();
}
return devices;
}
}
private void putDevicesForJid(
String bareJid, List<Integer> deviceIds, SQLiteAxolotlStore store) {
for (Integer deviceId : deviceIds) {
AxolotlAddress axolotlAddress = new AxolotlAddress(bareJid, deviceId);
Log.d(
Config.LOGTAG,
AxolotlService.getLogprefix(account)
+ "Building session for remote address: "
+ axolotlAddress.toString());
String fingerprint =
store
.loadSession(axolotlAddress)
.getSessionState()
.getRemoteIdentityKey()
.getFingerprint()
.replaceAll("\\s", "");
this.put(
axolotlAddress, new XmppAxolotlSession(account, store, axolotlAddress, fingerprint));
}
}
public Set<AxolotlAddress> findDevicesWithoutSession(final Conversation conversation) {
Log.d(
Config.LOGTAG,
AxolotlService.getLogprefix(account)
+ "Finding devices without session for "
+ conversation.getContact().getJid().toBareJid());
Jid contactJid = conversation.getContact().getJid().toBareJid();
Set<AxolotlAddress> addresses = new HashSet<>();
if (deviceIds.get(contactJid) != null) {
for (Integer foreignId : this.deviceIds.get(contactJid)) {
AxolotlAddress address = new AxolotlAddress(contactJid.toString(), foreignId);
if (sessions.get(address) == null) {
IdentityKey identityKey =
axolotlStore.loadSession(address).getSessionState().getRemoteIdentityKey();
if (identityKey != null) {
Log.d(
Config.LOGTAG,
AxolotlService.getLogprefix(account)
+ "Already have session for "
+ address.toString()
+ ", adding to cache...");
XmppAxolotlSession session =
new XmppAxolotlSession(
account,
axolotlStore,
address,
identityKey.getFingerprint().replaceAll("\\s", ""));
sessions.put(address, session);
} else {
Log.d(
Config.LOGTAG,
AxolotlService.getLogprefix(account)
+ "Found device "
+ account.getJid().toBareJid()
+ ":"
+ foreignId);
addresses.add(new AxolotlAddress(contactJid.toString(), foreignId));
}
}
}
} else {
Log.w(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Have no target devices in PEP!");
}
if (deviceIds.get(account.getJid().toBareJid()) != null) {
for (Integer ownId : this.deviceIds.get(account.getJid().toBareJid())) {
AxolotlAddress address = new AxolotlAddress(account.getJid().toBareJid().toString(), ownId);
if (sessions.get(address) == null) {
IdentityKey identityKey =
axolotlStore.loadSession(address).getSessionState().getRemoteIdentityKey();
if (identityKey != null) {
Log.d(
Config.LOGTAG,
AxolotlService.getLogprefix(account)
+ "Already have session for "
+ address.toString()
+ ", adding to cache...");
XmppAxolotlSession session =
new XmppAxolotlSession(
account,
axolotlStore,
address,
identityKey.getFingerprint().replaceAll("\\s", ""));
sessions.put(address, session);
} else {
Log.d(
Config.LOGTAG,
AxolotlService.getLogprefix(account)
+ "Found device "
+ account.getJid().toBareJid()
+ ":"
+ ownId);
addresses.add(new AxolotlAddress(account.getJid().toBareJid().toString(), ownId));
}
}
}
}
return addresses;
}
private void buildSessionFromPEP(final AxolotlAddress address) {
Log.i(
Config.LOGTAG,
AxolotlService.getLogprefix(account)
+ "Building new sesstion for "
+ address.getDeviceId());
try {
IqPacket bundlesPacket =
mXmppConnectionService
.getIqGenerator()
.retrieveBundlesForDevice(Jid.fromString(address.getName()), address.getDeviceId());
Log.d(
Config.LOGTAG,
AxolotlService.getLogprefix(account) + "Retrieving bundle: " + bundlesPacket);
mXmppConnectionService.sendIqPacket(
account,
bundlesPacket,
new OnIqPacketReceived() {
private void finish() {
AxolotlAddress ownAddress =
new AxolotlAddress(account.getJid().toBareJid().toString(), 0);
if (!fetchStatusMap.getAll(ownAddress).containsValue(FetchStatus.PENDING)
&& !fetchStatusMap.getAll(address).containsValue(FetchStatus.PENDING)) {
mXmppConnectionService.keyStatusUpdated();
}
}
@Override
public void onIqPacketReceived(Account account, IqPacket packet) {
Log.d(
Config.LOGTAG,
AxolotlService.getLogprefix(account)
+ "Received preKey IQ packet, processing...");
final IqParser parser = mXmppConnectionService.getIqParser();
final List<PreKeyBundle> preKeyBundleList = parser.preKeys(packet);
final PreKeyBundle bundle = parser.bundle(packet);
if (preKeyBundleList.isEmpty() || bundle == null) {
Log.e(
Config.LOGTAG,
AxolotlService.getLogprefix(account) + "preKey IQ packet invalid: " + packet);
fetchStatusMap.put(address, FetchStatus.ERROR);
finish();
return;
}
Random random = new Random();
final PreKeyBundle preKey =
preKeyBundleList.get(random.nextInt(preKeyBundleList.size()));
if (preKey == null) {
// should never happen
fetchStatusMap.put(address, FetchStatus.ERROR);
finish();
return;
}
final PreKeyBundle preKeyBundle =
new PreKeyBundle(
0,
address.getDeviceId(),
preKey.getPreKeyId(),
preKey.getPreKey(),
bundle.getSignedPreKeyId(),
bundle.getSignedPreKey(),
bundle.getSignedPreKeySignature(),
bundle.getIdentityKey());
axolotlStore.saveIdentity(address.getName(), bundle.getIdentityKey());
try {
SessionBuilder builder = new SessionBuilder(axolotlStore, address);
builder.process(preKeyBundle);
XmppAxolotlSession session =
new XmppAxolotlSession(
account,
axolotlStore,
address,
bundle.getIdentityKey().getFingerprint().replaceAll("\\s", ""));
sessions.put(address, session);
fetchStatusMap.put(address, FetchStatus.SUCCESS);
} catch (UntrustedIdentityException | InvalidKeyException e) {
Log.e(
Config.LOGTAG,
AxolotlService.getLogprefix(account)
+ "Error building session for "
+ address
+ ": "
+ e.getClass().getName()
+ ", "
+ e.getMessage());
fetchStatusMap.put(address, FetchStatus.ERROR);
}
finish();
}
});
} catch (InvalidJidException e) {
Log.e(
Config.LOGTAG,
AxolotlService.getLogprefix(account)
+ "Got address with invalid jid: "
+ address.getName());
}
}
public boolean hasAny(AxolotlAddress address) {
synchronized (MAP_LOCK) {
Map<Integer, T> devices = map.get(address.getName());
return devices != null && !devices.isEmpty();
}
}