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Standalone fully-featured Whatsapp Web API for Java and Kotlin
package it.auties.whatsapp.socket;
import com.fasterxml.jackson.databind.ObjectMapper;
import it.auties.curve25519.Curve25519;
import it.auties.whatsapp.api.ClientType;
import it.auties.whatsapp.api.DisconnectReason;
import it.auties.whatsapp.api.SocketEvent;
import it.auties.whatsapp.binary.BinaryPatchType;
import it.auties.whatsapp.model.companion.CompanionDevice;
import it.auties.whatsapp.crypto.Hmac;
import it.auties.whatsapp.exception.HmacValidationException;
import it.auties.whatsapp.model.business.BusinessVerifiedNameCertificate;
import it.auties.whatsapp.model.business.BusinessVerifiedNameDetails;
import it.auties.whatsapp.model.chat.Chat;
import it.auties.whatsapp.model.chat.ChatEphemeralTimer;
import it.auties.whatsapp.model.chat.GroupRole;
import it.auties.whatsapp.model.contact.Contact;
import it.auties.whatsapp.model.contact.ContactJid;
import it.auties.whatsapp.model.contact.ContactJid.Server;
import it.auties.whatsapp.model.contact.ContactJid.Type;
import it.auties.whatsapp.model.contact.ContactStatus;
import it.auties.whatsapp.model.info.MessageInfo;
import it.auties.whatsapp.model.info.MessageInfo.StubType;
import it.auties.whatsapp.model.media.MediaConnection;
import it.auties.whatsapp.model.message.model.MessageKey;
import it.auties.whatsapp.model.message.model.MessageStatus;
import it.auties.whatsapp.model.mobile.PhoneNumber;
import it.auties.whatsapp.model.mobile.RegistrationStatus;
import it.auties.whatsapp.model.privacy.PrivacySettingEntry;
import it.auties.whatsapp.model.privacy.PrivacySettingType;
import it.auties.whatsapp.model.privacy.PrivacySettingValue;
import it.auties.whatsapp.model.request.Attributes;
import it.auties.whatsapp.model.request.MessageSendRequest;
import it.auties.whatsapp.model.request.Node;
import it.auties.whatsapp.model.request.Request;
import it.auties.whatsapp.model.response.ContactStatusResponse;
import it.auties.whatsapp.model.signal.auth.DeviceIdentity;
import it.auties.whatsapp.model.signal.auth.SignedDeviceIdentity;
import it.auties.whatsapp.model.signal.auth.SignedDeviceIdentityHMAC;
import it.auties.whatsapp.model.signal.auth.UserAgent.UserAgentPlatform;
import it.auties.whatsapp.model.signal.keypair.SignalPreKeyPair;
import it.auties.whatsapp.util.BytesHelper;
import it.auties.whatsapp.util.Clock;
import it.auties.whatsapp.util.Protobuf;
import it.auties.whatsapp.util.Validate;
import lombok.NonNull;
import lombok.experimental.Accessors;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.net.URI;
import java.security.SecureRandom;
import java.time.ZonedDateTime;
import java.util.*;
import java.util.Map.Entry;
import java.util.concurrent.*;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import java.util.stream.Stream;
import static it.auties.whatsapp.api.ErrorHandler.Location.*;
import static it.auties.whatsapp.util.Spec.Signal.KEY_BUNDLE_TYPE;
import static it.auties.whatsapp.util.Spec.Whatsapp.ACCOUNT_SIGNATURE_HEADER;
import static it.auties.whatsapp.util.Spec.Whatsapp.DEVICE_WEB_SIGNATURE_HEADER;
@Accessors(fluent = true)
class StreamHandler {
private static final int REQUIRED_PRE_KEYS_SIZE = 5;
private static final int PRE_KEYS_UPLOAD_CHUNK = 30;
private static final int PING_INTERVAL = 30;
private static final int MEDIA_CONNECTION_DEFAULT_INTERVAL = 60;
private static final int MAX_ATTEMPTS = 5;
private final SocketHandler socketHandler;
private final Map retries;
private final AtomicBoolean badMac;
private ScheduledExecutorService service;
protected StreamHandler(SocketHandler socketHandler) {
this.socketHandler = socketHandler;
this.retries = new HashMap<>();
this.badMac = new AtomicBoolean();
}
protected void digest(@NonNull Node node) {
switch (node.description()) {
case "ack" -> digestAck(node);
case "call" -> digestCall(node);
case "failure" -> digestFailure(node);
case "ib" -> digestIb(node);
case "iq" -> digestIq(node);
case "receipt" -> digestReceipt(node);
case "stream:error" -> digestError(node);
case "success" -> digestSuccess(node);
case "message" -> socketHandler.decodeMessage(node);
case "notification" -> digestNotification(node);
case "presence", "chatstate" -> digestChatState(node);
case "xmlstreamend" -> digestStreamEnd();
}
}
private void digestStreamEnd() {
if (socketHandler.state() != SocketState.CONNECTED || badMac.get()) {
return;
}
socketHandler.disconnect(DisconnectReason.DISCONNECTED);
}
private void digestFailure(Node node) {
var reason = node.attributes().getInt("reason");
if (reason == 401 || reason == 403) {
socketHandler.disconnect(DisconnectReason.LOGGED_OUT);
return;
}
socketHandler.disconnect(DisconnectReason.RECONNECTING);
}
private void digestChatState(Node node) {
CompletableFuture.runAsync(() -> {
var chatJid = node.attributes()
.getJid("from")
.orElseThrow(() -> new NoSuchElementException("Missing from in chat state update"));
var participantJid = node.attributes()
.getJid("participant")
.orElse(chatJid);
updateContactPresence(chatJid, getUpdateType(node), participantJid);
});
}
private ContactStatus getUpdateType(Node node) {
var metadata = node.findNode();
var recording = metadata.map(entry -> entry.attributes().getString("media"))
.filter(entry -> entry.equals("audio"))
.isPresent();
if(recording){
return ContactStatus.RECORDING;
}
return node.attributes()
.getOptionalString("type")
.or(() -> metadata.map(Node::description))
.flatMap(ContactStatus::of)
.orElse(ContactStatus.AVAILABLE);
}
private void updateContactPresence(ContactJid chatJid, ContactStatus status, ContactJid contact) {
socketHandler.store()
.findChatByJid(chatJid)
.ifPresent(chat -> socketHandler.onUpdateChatPresence(status, contact, chat));
}
private void digestReceipt(Node node) {
var chat = node.attributes()
.getJid("from")
.filter(jid -> jid.type() != Type.STATUS)
.flatMap(socketHandler.store()::findChatByJid)
.orElse(null);
getReceiptsMessageIds(node)
.stream()
.map(messageId -> chat == null ? socketHandler.store().findStatusById(messageId) : socketHandler.store().findMessageById(chat, messageId))
.flatMap(Optional::stream)
.forEach(message -> digestReceipt(node, chat, message));
socketHandler.sendMessageAck(node);
}
private void digestReceipt(Node node, Chat chat, MessageInfo message) {
var type = node.attributes().getOptionalString("type");
var status = type.flatMap(MessageStatus::of)
.orElse(MessageStatus.DELIVERED);
var participant = node.attributes()
.getJid("participant")
.flatMap(socketHandler.store()::findContactByJid)
.orElse(null);
if(chat != null && chat.unreadMessagesCount() > 0) {
chat.unreadMessagesCount(chat.unreadMessagesCount() - 1);
}
message.status(status);
updateReceipt(status, chat, participant, message);
socketHandler.onMessageStatus(status, participant, message, chat);
if (Objects.equals(type.orElse(null), "retry")) {
sendMessageRetry(message);
}
}
private void sendMessageRetry(MessageInfo message) {
if (!message.fromMe()) {
return;
}
var attempts = retries.getOrDefault(message.id(), 0);
if(attempts > MAX_ATTEMPTS){
return;
}
try {
var all = message.senderJid().device() == 0;
socketHandler.querySessionsForcefully(message.senderJid());
message.chat().participantsPreKeys().clear();
var request = MessageSendRequest.builder()
.info(message)
.overrideSender(all ? null : message.senderJid())
.force(!all)
.build();
socketHandler.sendMessage(request);
} finally {
retries.put(message.id(), attempts + 1);
}
}
private void updateReceipt(MessageStatus status, Chat chat, Contact participant, MessageInfo message) {
var container = status == MessageStatus.READ ? message.receipt().readJids() : message.receipt().deliveredJids();
container.add(participant != null ? participant.jid() : message.senderJid());
if (chat != null && participant != null && chat.participants().size() != container.size()) {
return;
}
switch (status) {
case READ -> message.receipt().readTimestampSeconds(Clock.nowSeconds());
case PLAYED -> message.receipt().playedTimestampSeconds(Clock.nowSeconds());
}
}
private List getReceiptsMessageIds(Node node) {
var messageIds = Stream.ofNullable(node.findNode("list"))
.flatMap(Optional::stream)
.map(list -> list.findNodes("item"))
.flatMap(Collection::stream)
.map(item -> item.attributes().getOptionalString("id"))
.flatMap(Optional::stream)
.collect(Collectors.toList());
messageIds.add(node.attributes().getRequiredString("id"));
return messageIds;
}
// TODO: Dispatch call event
private void digestCall(Node node) {
var call = node.children().peekFirst();
if (call == null) {
return;
}
socketHandler.sendMessageAck(node);
}
private void digestAck(Node node) {
var error = node.attributes().getInt("error");
var messageId = node.id();
var from = node.attributes()
.getJid("from")
.orElseThrow(() -> new NoSuchElementException("Cannot digest ack: missing from"));
var match = socketHandler.store()
.findMessageById(from, messageId);
if (error != 0) {
match.ifPresent(message -> message.status(MessageStatus.ERROR));
} else {
match.filter(message -> message.status().index() < MessageStatus.SERVER_ACK.index())
.ifPresent(message -> message.status(MessageStatus.SERVER_ACK));
}
}
private void digestNotification(Node node) {
try {
var type = node.attributes().getString("type", null);
switch (type) {
case "w:gp2" -> handleGroupNotification(node);
case "server_sync" -> handleServerSyncNotification(node);
case "account_sync" -> handleAccountSyncNotification(node);
case "encrypt" -> handleEncryptNotification(node);
case "picture" -> handlePictureNotification(node);
case "registration" -> handleRegistrationNotification(node);
}
}finally {
socketHandler.sendMessageAck(node);
}
}
private void handleRegistrationNotification(Node node) {
var child = node.findNode("wa_old_registration");
if(child.isEmpty()){
return;
}
var code = child.get().attributes().getOptionalLong("code");
if(code.isEmpty()){
return;
}
socketHandler.onRegistrationCode(code.get());
}
private void handlePictureNotification(Node node) {
var fromJid = node.attributes()
.getJid("from")
.orElseThrow(() -> new NoSuchElementException("Missing from in notification"));
var fromChat = socketHandler.store()
.findChatByJid(fromJid)
.orElseGet(() -> socketHandler.store().addNewChat(fromJid));
var timestamp = node.attributes().getLong("t");
if (fromChat.isGroup()) {
addMessageForGroupStubType(fromChat, StubType.GROUP_CHANGE_ICON, timestamp, node);
socketHandler.onGroupPictureChange(fromChat);
return;
}
var fromContact = socketHandler.store().findContactByJid(fromJid).orElseGet(() -> {
var contact = socketHandler.store().addContact(fromJid);
socketHandler.onNewContact(contact);
return contact;
});
socketHandler.onContactPictureChange(fromContact);
}
private void handleGroupNotification(Node node) {
var child = node.findNode();
if(child.isEmpty()){
return;
}
var stubType = StubType.of(child.get().description());
if(stubType.isEmpty()){
return;
}
handleGroupStubNotification(node, stubType.get());
}
private void handleGroupStubNotification(Node node, StubType stubType) {
var timestamp = node.attributes().getLong("t");
var fromJid = node.attributes()
.getJid("from")
.orElseThrow(() -> new NoSuchElementException("Missing chat in notification"));
var fromChat = socketHandler.store()
.findChatByJid(fromJid)
.orElseGet(() -> socketHandler.store().addNewChat(fromJid));
addMessageForGroupStubType(fromChat, stubType, timestamp, node);
}
private void addMessageForGroupStubType(Chat chat, StubType stubType, long timestamp, Node metadata) {
var participantJid = metadata.attributes()
.getJid("participant")
.orElse(null);
var parameters = getStubTypeParameters(metadata);
var key = MessageKey.builder()
.chatJid(chat.jid())
.senderJid(participantJid)
.build();
var message = MessageInfo.builder()
.timestampSeconds(timestamp)
.key(key)
.ignore(true)
.stubType(stubType)
.stubParameters(parameters)
.senderJid(participantJid)
.build();
socketHandler.store().attribute(message);
chat.addNewMessage(message);
socketHandler.onNewMessage(message, false);
if(participantJid == null){
return;
}
handleGroupStubType(chat, stubType, participantJid);
}
private void handleGroupStubType(Chat chat, StubType stubType, ContactJid participantJid) {
switch (stubType){
case GROUP_PARTICIPANT_ADD -> chat.addParticipant(participantJid, GroupRole.USER);
case GROUP_PARTICIPANT_REMOVE, GROUP_PARTICIPANT_LEAVE -> chat.removeParticipant(participantJid);
case GROUP_PARTICIPANT_PROMOTE -> chat.findParticipant(participantJid)
.ifPresent(participant -> participant.role(GroupRole.ADMIN));
case GROUP_PARTICIPANT_DEMOTE -> chat.removeParticipant(participantJid)
.ifPresent(participant -> participant.role(GroupRole.USER));
}
}
private List getStubTypeParameters(Node metadata) {
try {
var mapper = new ObjectMapper();
var attributes = new ArrayList();
attributes.add(mapper.writeValueAsString(metadata.attributes().toMap()));
for(var child : metadata.children()){
var data = child.attributes();
if(data.isEmpty()){
continue;
}
attributes.add(mapper.writeValueAsString(data.toMap()));
}
return Collections.unmodifiableList(attributes);
}catch (IOException exception){
throw new UncheckedIOException("Cannot encode stub parameters", exception);
}
}
private void handleEncryptNotification(Node node) {
var chat = node.attributes()
.getJid("from")
.orElseThrow(() -> new NoSuchElementException("Missing chat in notification"));
if (!chat.isServerJid(ContactJid.Server.WHATSAPP)) {
return;
}
var keysSize = node.findNode("count")
.orElseThrow(() -> new NoSuchElementException("Missing count in notification"))
.attributes()
.getLong("value");
if (keysSize >= REQUIRED_PRE_KEYS_SIZE) {
return;
}
sendPreKeys();
}
private void handleAccountSyncNotification(Node node) {
var child = node.findNode();
if (child.isEmpty()) {
return;
}
switch (child.get().description()) {
case "devices" -> handleDevices(child.get());
case "privacy" -> changeUserPrivacySetting(child.get());
case "disappearing_mode" -> updateUserDisappearingMode(child.get());
case "status" -> updateUserStatus(true);
case "picture" -> updateUserPicture(true);
case "blocklist" -> updateBlocklist(child.orElse(null));
}
}
private void handleDevices(Node child) {
var deviceHash = child.attributes().getString("dhash");
socketHandler.store().deviceHash(deviceHash);
var devices = child.findNodes("device")
.stream()
.collect(Collectors.toMap(
entry -> entry.attributes().getJid("jid").get(),
entry -> entry.attributes().getInt("key-index"),
(first, second) -> second,
LinkedHashMap::new
));
var companionJid = socketHandler.store().jid().toWhatsappJid();
var companionDevice = devices.remove(companionJid);
devices.put(companionJid, companionDevice);
socketHandler.store().linkedDevicesKeys(devices);
socketHandler.onDevices(devices);
var keyIndexListNode = child.findNode("key-index-list")
.orElseThrow(() -> new NoSuchElementException("Missing index key node from device sync"));
var signedKeyIndexBytes = keyIndexListNode.contentAsBytes()
.orElseThrow(() -> new NoSuchElementException("Missing index key from device sync"));
socketHandler.keys().signedKeyIndex(signedKeyIndexBytes);
var signedKeyIndexTimestamp = keyIndexListNode.attributes().getLong("ts");
socketHandler.keys().signedKeyIndexTimestamp(signedKeyIndexTimestamp);
}
private void updateBlocklist(Node child) {
child.findNodes("item").forEach(this::updateBlocklistEntry);
}
private void updateBlocklistEntry(Node entry) {
entry.attributes().getJid("jid").flatMap(socketHandler.store()::findContactByJid).ifPresent(contact -> {
contact.blocked(Objects.equals(entry.attributes().getString("action"), "block"));
socketHandler.onContactBlocked(contact);
});
}
private void changeUserPrivacySetting(Node child) {
var category = child.findNodes("category");
category.forEach(entry -> addPrivacySetting(entry, true));
}
private void updateUserDisappearingMode(Node child) {
var timer = ChatEphemeralTimer.of(child.attributes().getLong("duration"));
socketHandler.store().newChatsEphemeralTimer(timer);
}
private CompletableFuture addPrivacySetting(Node node, boolean update) {
var privacySettingName = node.attributes().getString("name");
var privacyType = PrivacySettingType.of(privacySettingName)
.orElseThrow(() -> new NoSuchElementException("Unknown privacy option: %s".formatted(privacySettingName)));
var privacyValueName = node.attributes().getString("value");
var privacyValue = PrivacySettingValue.of(privacyValueName)
.orElseThrow(() -> new NoSuchElementException("Unknown privacy value: %s".formatted(privacyValueName)));
if (!update) {
return queryPrivacyExcludedContacts(privacyType, privacyValue)
.thenAcceptAsync(response -> socketHandler.store().addPrivacySetting(privacyType, new PrivacySettingEntry(privacyType, privacyValue, response)));
}
var oldEntry = socketHandler.store().findPrivacySetting(privacyType);
var newValues = getUpdatedBlockedList(node, oldEntry, privacyValue);
var newEntry = new PrivacySettingEntry(privacyType, privacyValue, Collections.unmodifiableList(newValues));
socketHandler.store().addPrivacySetting(privacyType, newEntry);
socketHandler.onPrivacySettingChanged(oldEntry, newEntry);
return CompletableFuture.completedFuture(null);
}
private List getUpdatedBlockedList(Node node, PrivacySettingEntry privacyEntry, PrivacySettingValue privacyValue) {
if(privacyValue != PrivacySettingValue.CONTACTS_EXCEPT){
return List.of();
}
var newValues = new ArrayList<>(privacyEntry.excluded());
for (var entry : node.findNodes("user")) {
var jid = entry.attributes()
.getJid("jid")
.orElseThrow(() -> new NoSuchElementException("Missing jid in response: %s".formatted(entry)));
if (entry.attributes().hasKey("action", "add")) {
newValues.add(jid);
continue;
}
newValues.remove(jid);
}
return newValues;
}
private CompletableFuture> queryPrivacyExcludedContacts(PrivacySettingType type, PrivacySettingValue value) {
if(value != PrivacySettingValue.CONTACTS_EXCEPT){
return CompletableFuture.completedFuture(List.of());
}
return socketHandler.sendQuery("get", "privacy", Node.ofChildren("privacy", Node.ofAttributes("list", Map.of("name", type.data(), "value", value.data()))))
.thenApplyAsync(this::parsePrivacyExcludedContacts);
}
private List parsePrivacyExcludedContacts(Node result) {
return result.findNode("privacy")
.orElseThrow(() -> new NoSuchElementException("Missing privacy in result: %s".formatted(result)))
.findNode("list")
.orElseThrow(() -> new NoSuchElementException("Missing list in result: %s".formatted(result)))
.findNodes("user")
.stream()
.map(user -> user.attributes().getJid("jid"))
.flatMap(Optional::stream)
.toList();
}
private void handleServerSyncNotification(Node node) {
var patches = node.findNodes("collection")
.stream()
.map(entry -> entry.attributes().getRequiredString("name"))
.map(BinaryPatchType::of)
.toArray(BinaryPatchType[]::new);
socketHandler.pullPatch(patches);
}
private void digestIb(Node node) {
var dirty = node.findNode("dirty");
if (dirty.isEmpty()) {
Validate.isTrue(!node.hasNode("downgrade_webclient"), "Multi device beta is not enabled. Please enable it from Whatsapp");
return;
}
var type = dirty.get().attributes().getString("type");
if (!Objects.equals(type, "account_sync")) {
return;
}
var timestamp = dirty.get().attributes().getString("timestamp");
socketHandler.sendQuery("set", "urn:xmpp:whatsapp:dirty",
Node.ofAttributes("clean", Map.of("type", type, "timestamp", timestamp)));
}
private void digestError(Node node) {
if (node.hasNode("bad-mac")) {
badMac.set(true);
var unresolvedNodes = socketHandler.store()
.pendingRequests()
.stream()
.map(Request::body)
.map(Objects::toString)
.collect(Collectors.joining("\n"));
socketHandler.handleFailure(CRYPTOGRAPHY, new RuntimeException("Detected a bad mac, unresolved nodes:\n%s".formatted(unresolvedNodes)));
return;
}
var statusCode = node.attributes().getInt("code");
switch (statusCode) {
case 515, 503 -> socketHandler.disconnect(DisconnectReason.RECONNECTING);
case 401 -> handleStreamError(node);
default -> node.children().forEach(error -> socketHandler.store().resolvePendingRequest(error, true));
}
}
private void handleStreamError(Node node) {
var child = node.children().getFirst();
var type = child.attributes().getString("type");
var reason = child.attributes().getString("reason", type);
if (!Objects.equals(reason, "device_removed")) {
socketHandler.handleFailure(STREAM, new RuntimeException(reason));
return;
}
socketHandler.disconnect(DisconnectReason.LOGGED_OUT);
}
private void digestSuccess(Node node) {
node.attributes().getJid("lid").ifPresent(socketHandler.store()::lid);
confirmConnection();
if (!socketHandler.keys().hasPreKeys()) {
sendPreKeys();
}
schedulePing();
createMediaConnection(0, null);
var loggedInFuture = queryInitialInfo()
.thenRunAsync(this::onInitialInfo)
.exceptionallyAsync(throwable -> socketHandler.handleFailure(LOGIN, throwable));
if(socketHandler.store().clientType() == ClientType.MOBILE){
socketHandler.store().initialSync(true);
}
if (!socketHandler.store().initialSync()) {
return;
}
var chatsFuture = socketHandler.store().serializer()
.attributeStore(socketHandler.store())
.exceptionallyAsync(exception -> socketHandler.handleFailure(MESSAGE, exception));
CompletableFuture.allOf(loggedInFuture, chatsFuture)
.thenRunAsync(socketHandler::onChats);
}
private CompletableFuture setBusinessCertificate() {
var details = BusinessVerifiedNameDetails.builder()
.name("")
.issuer("smb:wa")
.serial(Math.abs(new SecureRandom().nextLong()))
.build();
var encodedDetails = Protobuf.writeMessage(details);
var certificate = BusinessVerifiedNameCertificate.builder()
.details(encodedDetails)
.signature(Curve25519.sign(socketHandler.keys().identityKeyPair().privateKey(), encodedDetails, true))
.build();
return socketHandler.sendQuery("set", "w:biz", Node.of("verified_name", Map.of("v", 2), Protobuf.writeMessage(certificate)));
}
private CompletableFuture setBusinessProfile() {
var version = socketHandler.store().properties().get("biz_profile_options");
var body = new ArrayList();
socketHandler.store()
.businessAddress()
.ifPresent(value -> body.add(Node.of("address", value)));
socketHandler.store()
.businessLongitude()
.ifPresent(value -> body.add(Node.of("longitude", value)));
socketHandler.store()
.businessLatitude()
.ifPresent(value -> body.add(Node.of("latitude", value)));
socketHandler.store()
.businessDescription()
.ifPresent(value -> body.add(Node.of("description", value)));
socketHandler.store()
.businessWebsite()
.ifPresent(value -> body.add(Node.of("website", value)));
socketHandler.store()
.businessEmail()
.ifPresent(value -> body.add(Node.of("email", value)));
return getBusinessCategoryNode().thenComposeAsync(result -> {
body.add(Node.ofChildren("categories", Node.ofAttributes("category", Map.of("id", result.id()))));
return socketHandler.sendQuery("set", "w:biz", Node.ofChildren("business_profile", Map.of("v", version), body));
});
}
private CompletableFuture getBusinessCategoryNode() {
return socketHandler.store()
.businessCategory()
.map(businessCategory -> CompletableFuture.completedFuture(Node.ofAttributes("category", Map.of("id", businessCategory.id()))))
.orElseGet(() -> socketHandler.queryBusinessCategories()
.thenApplyAsync(entries -> Node.ofAttributes("category", Map.of("id", entries.get(0).id()))));
}
private synchronized void schedulePing(){
if (service != null && !service.isShutdown()) {
return;
}
service = Executors.newSingleThreadScheduledExecutor();
service.scheduleAtFixedRate(this::sendPing, PING_INTERVAL, PING_INTERVAL, TimeUnit.SECONDS);
}
private void onInitialInfo() {
socketHandler.onLoggedIn();
if (!socketHandler.store().initialSync()) {
return;
}
socketHandler.onContacts();
}
private CompletableFuture queryInitialInfo() {
return queryRequiredInfo()
.thenComposeAsync(ignored -> CompletableFuture.allOf(updateSelfPresence(), queryInitialBlockList(), queryInitialPrivacySettings(), updateUserStatus(false), updateUserPicture(false)));
}
private CompletableFuture queryRequiredInfo() {
return switch (socketHandler.store().clientType()) {
case WEB -> {
var requiredFuture = socketHandler.sendQuery("get", "w", Node.of("props"))
.thenAcceptAsync(this::parseProps)
.exceptionallyAsync(exception -> socketHandler.handleFailure(LOGIN, exception));
socketHandler.sendQuery("get", "abt", Node.ofAttributes("props", Map.of("protocol", "1")))
.exceptionallyAsync(exception -> socketHandler.handleFailure(LOGIN, exception));
yield requiredFuture;
}
case MOBILE -> {
var requiredFuture = socketHandler.sendQuery("get", "w", Node.ofAttributes("props", Map.of("protocol", "2", "hash", "")))
.thenAcceptAsync(this::parseProps)
.thenComposeAsync(ignored -> checkBusinessStatus())
.exceptionallyAsync(exception -> socketHandler.handleFailure(LOGIN, exception));
socketHandler.sendQuery("get", "urn:xmpp:whatsapp:push", Node.ofAttributes("config", Map.of("version", 1)))
.exceptionallyAsync(exception -> socketHandler.handleFailure(LOGIN, exception));
socketHandler.store().locale(Objects.requireNonNullElse(socketHandler.store().locale(), "en-US"));
socketHandler.sendQuery("set", "urn:xmpp:whatsapp:dirty", Node.ofAttributes("clean", Map.of("timestamp", 0, "type", "account_sync")))
.exceptionallyAsync(exception -> socketHandler.handleFailure(LOGIN, exception));
if(socketHandler.store().business()){
socketHandler.sendQuery("get", "fb:thrift_iq", Map.of("smax_id", 42), Node.of("linked_accounts"))
.exceptionallyAsync(exception -> socketHandler.handleFailure(LOGIN, exception));
}
yield requiredFuture;
}
};
}
private CompletableFuture checkBusinessStatus() {
if (!socketHandler.store().business() || socketHandler.keys().registrationStatus() == RegistrationStatus.BUSINESS_REGISTERED) {
return CompletableFuture.completedFuture(null);
}
return CompletableFuture.allOf(setBusinessCertificate(), setBusinessProfile())
.thenRunAsync(() -> socketHandler.keys().registrationStatus(RegistrationStatus.BUSINESS_REGISTERED));
}
private CompletableFuture queryInitialPrivacySettings() {
if(socketHandler.store().business()){
return CompletableFuture.completedFuture(null);
}
return socketHandler.sendQuery("get", "privacy", Node.of("privacy"))
.thenComposeAsync(this::parsePrivacySettings);
}
private CompletableFuture queryInitialBlockList() {
return socketHandler.queryBlockList()
.thenAcceptAsync(entry -> entry.forEach(this::markBlocked));
}
private CompletableFuture updateSelfPresence() {
if(!socketHandler.store().automaticPresenceUpdates()){
return CompletableFuture.completedFuture(null);
}
return socketHandler.sendWithNoResponse(Node.ofAttributes("presence", Map.of("name", socketHandler.store().name(), "type", "available")))
.thenRun(this::onPresenceUpdated)
.exceptionally(exception -> socketHandler.handleFailure(STREAM, exception));
}
private void onPresenceUpdated() {
socketHandler.store().online(true);
socketHandler.store()
.findContactByJid(socketHandler.store().jid().toWhatsappJid())
.ifPresent(entry -> entry.lastKnownPresence(ContactStatus.AVAILABLE).lastSeen(ZonedDateTime.now()));
}
private CompletableFuture updateUserStatus(boolean update) {
return socketHandler.queryAbout(socketHandler.store().jid().toWhatsappJid())
.thenAcceptAsync(result -> parseNewStatus(result.orElse(null), update));
}
private void parseNewStatus(ContactStatusResponse result, boolean update) {
if (result == null) {
return;
}
var oldStatus = socketHandler.store().about();
socketHandler.store().about(result.status());
if (!update) {
return;
}
socketHandler.onUserAboutChange(result.status(), oldStatus);
}
private CompletableFuture updateUserPicture(boolean update) {
return socketHandler.queryPicture(socketHandler.store().jid().toWhatsappJid())
.thenAcceptAsync(result -> handleUserPictureChange(result.orElse(null), update));
}
private void handleUserPictureChange(URI newPicture, boolean update) {
var oldStatus = socketHandler.store().profilePicture().orElse(null);
socketHandler.store().profilePicture(newPicture);
if (!update) {
return;
}
socketHandler.onUserPictureChange(newPicture, oldStatus);
}
private void markBlocked(ContactJid entry) {
socketHandler.store().findContactByJid(entry).orElseGet(() -> {
var contact = socketHandler.store().addContact(entry);
socketHandler.onNewContact(contact);
return contact;
}).blocked(true);
}
private CompletableFuture parsePrivacySettings(Node result) {
var privacy = result.findNode("privacy")
.orElseThrow(() -> new NoSuchElementException("Missing privacy in response: %s".formatted(result)))
.children()
.stream()
.map(entry -> addPrivacySetting(entry, false))
.toArray(CompletableFuture[]::new);
return CompletableFuture.allOf(privacy);
}
private void parseProps(Node result) {
var properties = result.findNode("props")
.stream()
.map(entry -> entry.findNodes("prop"))
.flatMap(Collection::stream)
.map(node -> Map.entry(node.attributes().getString("name"), node.attributes().getString("value")))
.collect(Collectors.toMap(Entry::getKey, Entry::getValue, (first, second) -> second, ConcurrentHashMap::new));
socketHandler.store().properties(properties);
socketHandler.onMetadata(properties);
}
private void sendPing() {
if (socketHandler.state() != SocketState.CONNECTED) {
return;
}
socketHandler.sendQueryWithNoResponse("get", "w:p", Node.of("ping"))
.exceptionallyAsync(throwable -> socketHandler.handleFailure(STREAM, throwable));
socketHandler.onSocketEvent(SocketEvent.PING);
}
private void createMediaConnection(int tries, Throwable error) {
if (socketHandler.state() != SocketState.CONNECTED) {
return;
}
if (tries >= MAX_ATTEMPTS) {
socketHandler.store().mediaConnection((MediaConnection) null);
socketHandler.handleFailure(MEDIA_CONNECTION, error);
scheduleMediaConnection(MEDIA_CONNECTION_DEFAULT_INTERVAL);
return;
}
socketHandler.sendQuery("set", "w:m", Node.of("media_conn"))
.thenApplyAsync(MediaConnection::of)
.thenAcceptAsync(result -> {
socketHandler.store().mediaConnection(result);
scheduleMediaConnection(result.ttl());
})
.exceptionallyAsync(throwable -> {
createMediaConnection(tries + 1, throwable);
return null;
});
}
private void scheduleMediaConnection(int seconds) {
var executor = CompletableFuture.delayedExecutor(seconds, TimeUnit.SECONDS);
CompletableFuture.runAsync(() -> createMediaConnection(0, null), executor);
}
private void digestIq(Node node) {
var container = node.findNode().orElse(null);
if (container == null) {
return;
}
switch (container.description()){
case "pair-device" -> generateQrCode(node, container);
case "pair-success" -> confirmQrCode(node, container);
}
}
private void confirmConnection() {
socketHandler.sendQuery("set", "passive", Node.of("active"));
}
private void sendPreKeys() {
var startId = socketHandler.keys().lastPreKeyId() + 1;
var preKeys = IntStream.range(startId, startId + PRE_KEYS_UPLOAD_CHUNK)
.mapToObj(SignalPreKeyPair::random)
.peek(socketHandler.keys()::addPreKey)
.map(SignalPreKeyPair::toNode)
.toList();
socketHandler.sendQuery("set", "encrypt",
Node.of("registration", socketHandler.keys().encodedRegistrationId()),
Node.of("type", KEY_BUNDLE_TYPE),
Node.of("identity", socketHandler.keys().identityKeyPair().publicKey()),
Node.ofChildren("list", preKeys), socketHandler.keys().signedKeyPair().toNode());
}
private void generateQrCode(Node node, Node container) {
printQrCode(container);
sendConfirmNode(node, null);
}
private void printQrCode(Node container) {
var ref = container.findNode("ref")
.flatMap(Node::contentAsString)
.orElseThrow(() -> new NoSuchElementException("Missing ref"));
var qr = String.join(
",",
ref,
Base64.getEncoder().encodeToString(socketHandler.keys().noiseKeyPair().publicKey()),
Base64.getEncoder().encodeToString(socketHandler.keys().identityKeyPair().publicKey()),
Base64.getEncoder().encodeToString(socketHandler.keys().companionKey()),
"1"
);
socketHandler.store().qrHandler().accept(qr);
}
private void confirmQrCode(Node node, Node container) {
saveCompanion(container);
var deviceIdentity = container.findNode("device-identity")
.orElseThrow(() -> new NoSuchElementException("Missing device identity"));
var advIdentity = Protobuf.readMessage(deviceIdentity.contentAsBytes().orElseThrow(), SignedDeviceIdentityHMAC.class);
var advSign = Hmac.calculateSha256(advIdentity.details(), socketHandler.keys().companionKey());
if (!Arrays.equals(advIdentity.hmac(), advSign)) {
socketHandler.handleFailure(LOGIN, new HmacValidationException("adv_sign"));
return;
}
var account = Protobuf.readMessage(advIdentity.details(), SignedDeviceIdentity.class);
var message = BytesHelper.concat(
ACCOUNT_SIGNATURE_HEADER,
account.details(),
socketHandler.keys().identityKeyPair().publicKey()
);
if (!Curve25519.verifySignature(account.accountSignatureKey(), message, account.accountSignature())) {
socketHandler.handleFailure(LOGIN, new HmacValidationException("message_header"));
return;
}
var deviceSignatureMessage = BytesHelper.concat(
DEVICE_WEB_SIGNATURE_HEADER,
account.details(),
socketHandler.keys().identityKeyPair().publicKey(),
account.accountSignatureKey()
);
account.deviceSignature(Curve25519.sign(socketHandler.keys().identityKeyPair().privateKey(), deviceSignatureMessage, true));
var keyIndex = Protobuf.readMessage(account.details(), DeviceIdentity.class).keyIndex();
var outgoingDeviceIdentity = Protobuf.writeMessage(new SignedDeviceIdentity(account.details(), null, account.accountSignature(), account.deviceSignature()));
var devicePairNode = Node.ofChildren("pair-device-sign",
Node.of("device-identity", Map.of("key-index", keyIndex), outgoingDeviceIdentity));
socketHandler.keys().companionIdentity(account);
sendConfirmNode(node, devicePairNode);
}
private void sendConfirmNode(Node node, Node content) {
var attributes = Attributes.of()
.put("id", node.id())
.put("type", "result")
.put("to", Server.WHATSAPP.toJid())
.toMap();
var request = Node.ofChildren("iq", attributes, content);
socketHandler.sendWithNoResponse(request);
}
private void saveCompanion(Node container) {
var node = container.findNode("device")
.orElseThrow(() -> new NoSuchElementException("Missing device"));
var isBusiness = container.hasNode("business");
var companion = node.attributes()
.getJid("jid")
.orElseThrow(() -> new NoSuchElementException("Missing companion"));
socketHandler.store().jid(companion);
socketHandler.store().phoneNumber(PhoneNumber.of(companion.user()));
socketHandler.markConnected();
var companionOs = container.findNode("platform")
.map(entry -> entry.attributes().getNullableString("name"))
.map(this::getCompanionOs)
.orElseThrow(() -> new NoSuchElementException("Unknown platform"));
var companionDevice = new CompanionDevice(null, null, companionOs, null);
socketHandler.store().companionDevice(companionDevice);
socketHandler.store().business(isBusiness);
socketHandler.store().addContact(Contact.ofJid(socketHandler.store().jid().toWhatsappJid()));
}
private UserAgentPlatform getCompanionOs(String name) {
return switch (name.toLowerCase()) {
case "smba" -> UserAgentPlatform.SMB_ANDROID;
case "smbi" -> UserAgentPlatform.SMB_IOS;
case "android" -> UserAgentPlatform.ANDROID;
case "ios" -> UserAgentPlatform.IOS;
default -> null;
};
}
protected void dispose() {
retries.clear();
if(service != null){
service.shutdownNow();
}
badMac.set(false);
}
}
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