NekoX/TMessagesProj/src/main/java/org/telegram/messenger/SecretChatHelper.java

1930 lines
105 KiB
Java

/*
* This is the source code of Telegram for Android v. 2.0.x.
* It is licensed under GNU GPL v. 2 or later.
* You should have received a copy of the license in this archive (see LICENSE).
*
* Copyright Nikolai Kudashov, 2013-2018.
*/
package org.telegram.messenger;
import android.app.Activity;
import android.content.Context;
import android.util.LongSparseArray;
import android.util.SparseArray;
import org.telegram.SQLite.SQLiteCursor;
import org.telegram.tgnet.AbstractSerializedData;
import org.telegram.tgnet.ConnectionsManager;
import org.telegram.tgnet.NativeByteBuffer;
import org.telegram.tgnet.TLClassStore;
import org.telegram.tgnet.TLObject;
import org.telegram.tgnet.TLRPC;
import org.telegram.ui.ActionBar.AlertDialog;
import java.io.File;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Locale;
import java.util.concurrent.ConcurrentHashMap;
public class SecretChatHelper {
public static class TL_decryptedMessageHolder extends TLObject {
public static int constructor = 0x555555F9;
public int date;
public TLRPC.TL_decryptedMessageLayer layer;
public TLRPC.EncryptedFile file;
public boolean new_key_used;
public int decryptedWithVersion;
public void readParams(AbstractSerializedData stream, boolean exception) {
stream.readInt64(exception);
date = stream.readInt32(exception);
layer = TLRPC.TL_decryptedMessageLayer.TLdeserialize(stream, stream.readInt32(exception), exception);
if (stream.readBool(exception)) {
file = TLRPC.EncryptedFile.TLdeserialize(stream, stream.readInt32(exception), exception);
}
new_key_used = stream.readBool(exception);
}
public void serializeToStream(AbstractSerializedData stream) {
stream.writeInt32(constructor);
stream.writeInt64(0);
stream.writeInt32(date);
layer.serializeToStream(stream);
stream.writeBool(file != null);
if (file != null) {
file.serializeToStream(stream);
}
stream.writeBool(new_key_used);
}
}
public static final int CURRENT_SECRET_CHAT_LAYER = 73;
private ArrayList<Integer> sendingNotifyLayer = new ArrayList<>();
private SparseArray<ArrayList<TL_decryptedMessageHolder>> secretHolesQueue = new SparseArray<>();
private SparseArray<TLRPC.EncryptedChat> acceptingChats = new SparseArray<>();
public ArrayList<TLRPC.Update> delayedEncryptedChatUpdates = new ArrayList<>();
private ArrayList<Long> pendingEncMessagesToDelete = new ArrayList<>();
private boolean startingSecretChat = false;
private int currentAccount;
private static volatile SecretChatHelper Instance[] = new SecretChatHelper[UserConfig.MAX_ACCOUNT_COUNT];
public static SecretChatHelper getInstance(int num) {
SecretChatHelper localInstance = Instance[num];
if (localInstance == null) {
synchronized (SecretChatHelper.class) {
localInstance = Instance[num];
if (localInstance == null) {
Instance[num] = localInstance = new SecretChatHelper(num);
}
}
}
return localInstance;
}
public SecretChatHelper(int instance) {
currentAccount = instance;
}
public void cleanup() {
sendingNotifyLayer.clear();
acceptingChats.clear();
secretHolesQueue.clear();
delayedEncryptedChatUpdates.clear();
pendingEncMessagesToDelete.clear();
startingSecretChat = false;
}
protected void processPendingEncMessages() {
if (!pendingEncMessagesToDelete.isEmpty()) {
final ArrayList<Long> pendingEncMessagesToDeleteCopy = new ArrayList<>(pendingEncMessagesToDelete);
AndroidUtilities.runOnUIThread(() -> {
for (int a = 0; a < pendingEncMessagesToDeleteCopy.size(); a++) {
MessageObject messageObject = MessagesController.getInstance(currentAccount).dialogMessagesByRandomIds.get(pendingEncMessagesToDeleteCopy.get(a));
if (messageObject != null) {
messageObject.deleted = true;
}
}
});
ArrayList<Long> arr = new ArrayList<>(pendingEncMessagesToDelete);
MessagesStorage.getInstance(currentAccount).markMessagesAsDeletedByRandoms(arr);
pendingEncMessagesToDelete.clear();
}
}
private TLRPC.TL_messageService createServiceSecretMessage(final TLRPC.EncryptedChat encryptedChat, TLRPC.DecryptedMessageAction decryptedMessage) {
TLRPC.TL_messageService newMsg = new TLRPC.TL_messageService();
newMsg.action = new TLRPC.TL_messageEncryptedAction();
newMsg.action.encryptedAction = decryptedMessage;
newMsg.local_id = newMsg.id = UserConfig.getInstance(currentAccount).getNewMessageId();
newMsg.from_id = UserConfig.getInstance(currentAccount).getClientUserId();
newMsg.unread = true;
newMsg.out = true;
newMsg.flags = TLRPC.MESSAGE_FLAG_HAS_FROM_ID;
newMsg.dialog_id = ((long) encryptedChat.id) << 32;
newMsg.to_id = new TLRPC.TL_peerUser();
newMsg.send_state = MessageObject.MESSAGE_SEND_STATE_SENDING;
if (encryptedChat.participant_id == UserConfig.getInstance(currentAccount).getClientUserId()) {
newMsg.to_id.user_id = encryptedChat.admin_id;
} else {
newMsg.to_id.user_id = encryptedChat.participant_id;
}
if (decryptedMessage instanceof TLRPC.TL_decryptedMessageActionScreenshotMessages || decryptedMessage instanceof TLRPC.TL_decryptedMessageActionSetMessageTTL) {
newMsg.date = ConnectionsManager.getInstance(currentAccount).getCurrentTime();
} else {
newMsg.date = 0;
}
newMsg.random_id = SendMessagesHelper.getInstance(currentAccount).getNextRandomId();
UserConfig.getInstance(currentAccount).saveConfig(false);
ArrayList<TLRPC.Message> arr = new ArrayList<>();
arr.add(newMsg);
MessagesStorage.getInstance(currentAccount).putMessages(arr, false, true, true, 0);
return newMsg;
}
public void sendMessagesReadMessage(TLRPC.EncryptedChat encryptedChat, ArrayList<Long> random_ids, TLRPC.Message resendMessage) {
if (!(encryptedChat instanceof TLRPC.TL_encryptedChat)) {
return;
}
TLRPC.TL_decryptedMessageService reqSend = new TLRPC.TL_decryptedMessageService();
TLRPC.Message message;
if (resendMessage != null) {
message = resendMessage;
reqSend.action = message.action.encryptedAction;
} else {
reqSend.action = new TLRPC.TL_decryptedMessageActionReadMessages();
reqSend.action.random_ids = random_ids;
message = createServiceSecretMessage(encryptedChat, reqSend.action);
}
reqSend.random_id = message.random_id;
performSendEncryptedRequest(reqSend, message, encryptedChat, null, null, null);
}
protected void processUpdateEncryption(TLRPC.TL_updateEncryption update, ConcurrentHashMap<Integer, TLRPC.User> usersDict) {
final TLRPC.EncryptedChat newChat = update.chat;
long dialog_id = ((long) newChat.id) << 32;
TLRPC.EncryptedChat existingChat = MessagesController.getInstance(currentAccount).getEncryptedChatDB(newChat.id, false);
if (newChat instanceof TLRPC.TL_encryptedChatRequested && existingChat == null) {
int user_id = newChat.participant_id;
if (user_id == UserConfig.getInstance(currentAccount).getClientUserId()) {
user_id = newChat.admin_id;
}
TLRPC.User user = MessagesController.getInstance(currentAccount).getUser(user_id);
if (user == null) {
user = usersDict.get(user_id);
}
newChat.user_id = user_id;
final TLRPC.TL_dialog dialog = new TLRPC.TL_dialog();
dialog.id = dialog_id;
dialog.unread_count = 0;
dialog.top_message = 0;
dialog.last_message_date = update.date;
MessagesController.getInstance(currentAccount).putEncryptedChat(newChat, false);
AndroidUtilities.runOnUIThread(() -> {
MessagesController.getInstance(currentAccount).dialogs_dict.put(dialog.id, dialog);
MessagesController.getInstance(currentAccount).dialogs.add(dialog);
MessagesController.getInstance(currentAccount).sortDialogs(null);
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.dialogsNeedReload);
});
MessagesStorage.getInstance(currentAccount).putEncryptedChat(newChat, user, dialog);
acceptSecretChat(newChat);
} else if (newChat instanceof TLRPC.TL_encryptedChat) {
if (existingChat != null && existingChat instanceof TLRPC.TL_encryptedChatWaiting && (existingChat.auth_key == null || existingChat.auth_key.length == 1)) {
newChat.a_or_b = existingChat.a_or_b;
newChat.user_id = existingChat.user_id;
processAcceptedSecretChat(newChat);
} else if (existingChat == null && startingSecretChat) {
delayedEncryptedChatUpdates.add(update);
}
} else {
final TLRPC.EncryptedChat exist = existingChat;
if (exist != null) {
newChat.user_id = exist.user_id;
newChat.auth_key = exist.auth_key;
newChat.key_create_date = exist.key_create_date;
newChat.key_use_count_in = exist.key_use_count_in;
newChat.key_use_count_out = exist.key_use_count_out;
newChat.ttl = exist.ttl;
newChat.seq_in = exist.seq_in;
newChat.seq_out = exist.seq_out;
newChat.admin_id = exist.admin_id;
newChat.mtproto_seq = exist.mtproto_seq;
}
AndroidUtilities.runOnUIThread(() -> {
if (exist != null) {
MessagesController.getInstance(currentAccount).putEncryptedChat(newChat, false);
}
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(newChat);
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.encryptedChatUpdated, newChat);
});
}
}
public void sendMessagesDeleteMessage(TLRPC.EncryptedChat encryptedChat, ArrayList<Long> random_ids, TLRPC.Message resendMessage) {
if (!(encryptedChat instanceof TLRPC.TL_encryptedChat)) {
return;
}
TLRPC.TL_decryptedMessageService reqSend = new TLRPC.TL_decryptedMessageService();
TLRPC.Message message;
if (resendMessage != null) {
message = resendMessage;
reqSend.action = message.action.encryptedAction;
} else {
reqSend.action = new TLRPC.TL_decryptedMessageActionDeleteMessages();
reqSend.action.random_ids = random_ids;
message = createServiceSecretMessage(encryptedChat, reqSend.action);
}
reqSend.random_id = message.random_id;
performSendEncryptedRequest(reqSend, message, encryptedChat, null, null, null);
}
public void sendClearHistoryMessage(TLRPC.EncryptedChat encryptedChat, TLRPC.Message resendMessage) {
if (!(encryptedChat instanceof TLRPC.TL_encryptedChat)) {
return;
}
TLRPC.TL_decryptedMessageService reqSend = new TLRPC.TL_decryptedMessageService();
TLRPC.Message message;
if (resendMessage != null) {
message = resendMessage;
reqSend.action = message.action.encryptedAction;
} else {
reqSend.action = new TLRPC.TL_decryptedMessageActionFlushHistory();
message = createServiceSecretMessage(encryptedChat, reqSend.action);
}
reqSend.random_id = message.random_id;
performSendEncryptedRequest(reqSend, message, encryptedChat, null, null, null);
}
public void sendNotifyLayerMessage(final TLRPC.EncryptedChat encryptedChat, TLRPC.Message resendMessage) {
if (!(encryptedChat instanceof TLRPC.TL_encryptedChat)) {
return;
}
if (sendingNotifyLayer.contains(encryptedChat.id)) {
return;
}
sendingNotifyLayer.add(encryptedChat.id);
TLRPC.TL_decryptedMessageService reqSend = new TLRPC.TL_decryptedMessageService();
TLRPC.Message message;
if (resendMessage != null) {
message = resendMessage;
reqSend.action = message.action.encryptedAction;
} else {
reqSend.action = new TLRPC.TL_decryptedMessageActionNotifyLayer();
reqSend.action.layer = CURRENT_SECRET_CHAT_LAYER;
message = createServiceSecretMessage(encryptedChat, reqSend.action);
}
reqSend.random_id = message.random_id;
performSendEncryptedRequest(reqSend, message, encryptedChat, null, null, null);
}
public void sendRequestKeyMessage(final TLRPC.EncryptedChat encryptedChat, TLRPC.Message resendMessage) {
if (!(encryptedChat instanceof TLRPC.TL_encryptedChat)) {
return;
}
TLRPC.TL_decryptedMessageService reqSend = new TLRPC.TL_decryptedMessageService();
TLRPC.Message message;
if (resendMessage != null) {
message = resendMessage;
reqSend.action = message.action.encryptedAction;
} else {
reqSend.action = new TLRPC.TL_decryptedMessageActionRequestKey();
reqSend.action.exchange_id = encryptedChat.exchange_id;
reqSend.action.g_a = encryptedChat.g_a;
message = createServiceSecretMessage(encryptedChat, reqSend.action);
}
reqSend.random_id = message.random_id;
performSendEncryptedRequest(reqSend, message, encryptedChat, null, null, null);
}
public void sendAcceptKeyMessage(final TLRPC.EncryptedChat encryptedChat, TLRPC.Message resendMessage) {
if (!(encryptedChat instanceof TLRPC.TL_encryptedChat)) {
return;
}
TLRPC.TL_decryptedMessageService reqSend = new TLRPC.TL_decryptedMessageService();
TLRPC.Message message;
if (resendMessage != null) {
message = resendMessage;
reqSend.action = message.action.encryptedAction;
} else {
reqSend.action = new TLRPC.TL_decryptedMessageActionAcceptKey();
reqSend.action.exchange_id = encryptedChat.exchange_id;
reqSend.action.key_fingerprint = encryptedChat.future_key_fingerprint;
reqSend.action.g_b = encryptedChat.g_a_or_b;
message = createServiceSecretMessage(encryptedChat, reqSend.action);
}
reqSend.random_id = message.random_id;
performSendEncryptedRequest(reqSend, message, encryptedChat, null, null, null);
}
public void sendCommitKeyMessage(final TLRPC.EncryptedChat encryptedChat, TLRPC.Message resendMessage) {
if (!(encryptedChat instanceof TLRPC.TL_encryptedChat)) {
return;
}
TLRPC.TL_decryptedMessageService reqSend = new TLRPC.TL_decryptedMessageService();
TLRPC.Message message;
if (resendMessage != null) {
message = resendMessage;
reqSend.action = message.action.encryptedAction;
} else {
reqSend.action = new TLRPC.TL_decryptedMessageActionCommitKey();
reqSend.action.exchange_id = encryptedChat.exchange_id;
reqSend.action.key_fingerprint = encryptedChat.future_key_fingerprint;
message = createServiceSecretMessage(encryptedChat, reqSend.action);
}
reqSend.random_id = message.random_id;
performSendEncryptedRequest(reqSend, message, encryptedChat, null, null, null);
}
public void sendAbortKeyMessage(final TLRPC.EncryptedChat encryptedChat, TLRPC.Message resendMessage, long excange_id) {
if (!(encryptedChat instanceof TLRPC.TL_encryptedChat)) {
return;
}
TLRPC.TL_decryptedMessageService reqSend = new TLRPC.TL_decryptedMessageService();
TLRPC.Message message;
if (resendMessage != null) {
message = resendMessage;
reqSend.action = message.action.encryptedAction;
} else {
reqSend.action = new TLRPC.TL_decryptedMessageActionAbortKey();
reqSend.action.exchange_id = excange_id;
message = createServiceSecretMessage(encryptedChat, reqSend.action);
}
reqSend.random_id = message.random_id;
performSendEncryptedRequest(reqSend, message, encryptedChat, null, null, null);
}
public void sendNoopMessage(final TLRPC.EncryptedChat encryptedChat, TLRPC.Message resendMessage) {
if (!(encryptedChat instanceof TLRPC.TL_encryptedChat)) {
return;
}
TLRPC.TL_decryptedMessageService reqSend = new TLRPC.TL_decryptedMessageService();
TLRPC.Message message;
if (resendMessage != null) {
message = resendMessage;
reqSend.action = message.action.encryptedAction;
} else {
reqSend.action = new TLRPC.TL_decryptedMessageActionNoop();
message = createServiceSecretMessage(encryptedChat, reqSend.action);
}
reqSend.random_id = message.random_id;
performSendEncryptedRequest(reqSend, message, encryptedChat, null, null, null);
}
public void sendTTLMessage(TLRPC.EncryptedChat encryptedChat, TLRPC.Message resendMessage) {
if (!(encryptedChat instanceof TLRPC.TL_encryptedChat)) {
return;
}
TLRPC.TL_decryptedMessageService reqSend = new TLRPC.TL_decryptedMessageService();
TLRPC.Message message;
if (resendMessage != null) {
message = resendMessage;
reqSend.action = message.action.encryptedAction;
} else {
reqSend.action = new TLRPC.TL_decryptedMessageActionSetMessageTTL();
reqSend.action.ttl_seconds = encryptedChat.ttl;
message = createServiceSecretMessage(encryptedChat, reqSend.action);
MessageObject newMsgObj = new MessageObject(currentAccount, message, false);
newMsgObj.messageOwner.send_state = MessageObject.MESSAGE_SEND_STATE_SENDING;
ArrayList<MessageObject> objArr = new ArrayList<>();
objArr.add(newMsgObj);
MessagesController.getInstance(currentAccount).updateInterfaceWithMessages(message.dialog_id, objArr);
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.dialogsNeedReload);
}
reqSend.random_id = message.random_id;
performSendEncryptedRequest(reqSend, message, encryptedChat, null, null, null);
}
public void sendScreenshotMessage(TLRPC.EncryptedChat encryptedChat, ArrayList<Long> random_ids, TLRPC.Message resendMessage) {
if (!(encryptedChat instanceof TLRPC.TL_encryptedChat)) {
return;
}
TLRPC.TL_decryptedMessageService reqSend = new TLRPC.TL_decryptedMessageService();
TLRPC.Message message;
if (resendMessage != null) {
message = resendMessage;
reqSend.action = message.action.encryptedAction;
} else {
reqSend.action = new TLRPC.TL_decryptedMessageActionScreenshotMessages();
reqSend.action.random_ids = random_ids;
message = createServiceSecretMessage(encryptedChat, reqSend.action);
MessageObject newMsgObj = new MessageObject(currentAccount, message, false);
newMsgObj.messageOwner.send_state = MessageObject.MESSAGE_SEND_STATE_SENDING;
ArrayList<MessageObject> objArr = new ArrayList<>();
objArr.add(newMsgObj);
MessagesController.getInstance(currentAccount).updateInterfaceWithMessages(message.dialog_id, objArr);
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.dialogsNeedReload);
}
reqSend.random_id = message.random_id;
performSendEncryptedRequest(reqSend, message, encryptedChat, null, null, null);
}
private void updateMediaPaths(MessageObject newMsgObj, TLRPC.EncryptedFile file, TLRPC.DecryptedMessage decryptedMessage, String originalPath) {
TLRPC.Message newMsg = newMsgObj.messageOwner;
if (file != null) {
if (newMsg.media instanceof TLRPC.TL_messageMediaPhoto && newMsg.media.photo != null) {
TLRPC.PhotoSize size = newMsg.media.photo.sizes.get(newMsg.media.photo.sizes.size() - 1);
String fileName = size.location.volume_id + "_" + size.location.local_id;
size.location = new TLRPC.TL_fileEncryptedLocation();
size.location.key = decryptedMessage.media.key;
size.location.iv = decryptedMessage.media.iv;
size.location.dc_id = file.dc_id;
size.location.volume_id = file.id;
size.location.secret = file.access_hash;
size.location.local_id = file.key_fingerprint;
String fileName2 = size.location.volume_id + "_" + size.location.local_id;
File cacheFile = new File(FileLoader.getDirectory(FileLoader.MEDIA_DIR_CACHE), fileName + ".jpg");
File cacheFile2 = FileLoader.getPathToAttach(size);
cacheFile.renameTo(cacheFile2);
ImageLoader.getInstance().replaceImageInCache(fileName, fileName2, size.location, true);
ArrayList<TLRPC.Message> arr = new ArrayList<>();
arr.add(newMsg);
MessagesStorage.getInstance(currentAccount).putMessages(arr, false, true, false, 0);
//MessagesStorage.getInstance(currentAccount).putSentFile(originalPath, newMsg.media.photo, 3);
} else if (newMsg.media instanceof TLRPC.TL_messageMediaDocument && newMsg.media.document != null) {
TLRPC.Document document = newMsg.media.document;
newMsg.media.document = new TLRPC.TL_documentEncrypted();
newMsg.media.document.id = file.id;
newMsg.media.document.access_hash = file.access_hash;
newMsg.media.document.date = document.date;
newMsg.media.document.attributes = document.attributes;
newMsg.media.document.mime_type = document.mime_type;
newMsg.media.document.size = file.size;
newMsg.media.document.key = decryptedMessage.media.key;
newMsg.media.document.iv = decryptedMessage.media.iv;
newMsg.media.document.thumbs = document.thumbs;
newMsg.media.document.dc_id = file.dc_id;
if (newMsg.media.document.thumbs.isEmpty()) {
TLRPC.PhotoSize thumb = new TLRPC.TL_photoSizeEmpty();
thumb.type = "s";
newMsg.media.document.thumbs.add(thumb);
}
if (newMsg.attachPath != null && newMsg.attachPath.startsWith(FileLoader.getDirectory(FileLoader.MEDIA_DIR_CACHE).getAbsolutePath())) {
File cacheFile = new File(newMsg.attachPath);
File cacheFile2 = FileLoader.getPathToAttach(newMsg.media.document);
if (cacheFile.renameTo(cacheFile2)) {
newMsgObj.mediaExists = newMsgObj.attachPathExists;
newMsgObj.attachPathExists = false;
newMsg.attachPath = "";
}
}
ArrayList<TLRPC.Message> arr = new ArrayList<>();
arr.add(newMsg);
MessagesStorage.getInstance(currentAccount).putMessages(arr, false, true, false, 0);
}
}
}
public static boolean isSecretVisibleMessage(TLRPC.Message message) {
return message.action instanceof TLRPC.TL_messageEncryptedAction && (message.action.encryptedAction instanceof TLRPC.TL_decryptedMessageActionScreenshotMessages || message.action.encryptedAction instanceof TLRPC.TL_decryptedMessageActionSetMessageTTL);
}
public static boolean isSecretInvisibleMessage(TLRPC.Message message) {
return message.action instanceof TLRPC.TL_messageEncryptedAction && !(message.action.encryptedAction instanceof TLRPC.TL_decryptedMessageActionScreenshotMessages || message.action.encryptedAction instanceof TLRPC.TL_decryptedMessageActionSetMessageTTL);
}
protected void performSendEncryptedRequest(final TLRPC.TL_messages_sendEncryptedMultiMedia req, final SendMessagesHelper.DelayedMessage message) {
for (int a = 0; a < req.files.size(); a++) {
performSendEncryptedRequest(req.messages.get(a), message.messages.get(a), message.encryptedChat, req.files.get(a), message.originalPaths.get(a), message.messageObjects.get(a));
}
}
protected void performSendEncryptedRequest(final TLRPC.DecryptedMessage req, final TLRPC.Message newMsgObj, final TLRPC.EncryptedChat chat, final TLRPC.InputEncryptedFile encryptedFile, final String originalPath, final MessageObject newMsg) {
if (req == null || chat.auth_key == null || chat instanceof TLRPC.TL_encryptedChatRequested || chat instanceof TLRPC.TL_encryptedChatWaiting) {
return;
}
SendMessagesHelper.getInstance(currentAccount).putToSendingMessages(newMsgObj);
Utilities.stageQueue.postRunnable(() -> {
try {
TLObject toEncryptObject;
TLRPC.TL_decryptedMessageLayer layer = new TLRPC.TL_decryptedMessageLayer();
int myLayer = Math.max(46, AndroidUtilities.getMyLayerVersion(chat.layer));
layer.layer = Math.min(myLayer, Math.max(46, AndroidUtilities.getPeerLayerVersion(chat.layer)));
layer.message = req;
layer.random_bytes = new byte[15];
Utilities.random.nextBytes(layer.random_bytes);
toEncryptObject = layer;
int mtprotoVersion = AndroidUtilities.getPeerLayerVersion(chat.layer) >= 73 ? 2 : 1;
if (chat.seq_in == 0 && chat.seq_out == 0) {
if (chat.admin_id == UserConfig.getInstance(currentAccount).getClientUserId()) {
chat.seq_out = 1;
chat.seq_in = -2;
} else {
chat.seq_in = -1;
}
}
if (newMsgObj.seq_in == 0 && newMsgObj.seq_out == 0) {
layer.in_seq_no = chat.seq_in > 0 ? chat.seq_in : chat.seq_in + 2;
layer.out_seq_no = chat.seq_out;
chat.seq_out += 2;
if (AndroidUtilities.getPeerLayerVersion(chat.layer) >= 20) {
if (chat.key_create_date == 0) {
chat.key_create_date = ConnectionsManager.getInstance(currentAccount).getCurrentTime();
}
chat.key_use_count_out++;
if ((chat.key_use_count_out >= 100 || chat.key_create_date < ConnectionsManager.getInstance(currentAccount).getCurrentTime() - 60 * 60 * 24 * 7) && chat.exchange_id == 0 && chat.future_key_fingerprint == 0) {
requestNewSecretChatKey(chat);
}
}
MessagesStorage.getInstance(currentAccount).updateEncryptedChatSeq(chat, false);
if (newMsgObj != null) {
newMsgObj.seq_in = layer.in_seq_no;
newMsgObj.seq_out = layer.out_seq_no;
MessagesStorage.getInstance(currentAccount).setMessageSeq(newMsgObj.id, newMsgObj.seq_in, newMsgObj.seq_out);
}
} else {
layer.in_seq_no = newMsgObj.seq_in;
layer.out_seq_no = newMsgObj.seq_out;
}
if (BuildVars.LOGS_ENABLED) {
FileLog.d(req + " send message with in_seq = " + layer.in_seq_no + " out_seq = " + layer.out_seq_no);
}
int len = toEncryptObject.getObjectSize();
NativeByteBuffer toEncrypt = new NativeByteBuffer(4 + len);
toEncrypt.writeInt32(len);
toEncryptObject.serializeToStream(toEncrypt);
len = toEncrypt.length();
int extraLen = len % 16 != 0 ? 16 - len % 16 : 0;
if (mtprotoVersion == 2) {
extraLen += (2 + Utilities.random.nextInt(3)) * 16;
}
NativeByteBuffer dataForEncryption = new NativeByteBuffer(len + extraLen);
toEncrypt.position(0);
dataForEncryption.writeBytes(toEncrypt);
if (extraLen != 0) {
byte[] b = new byte[extraLen];
Utilities.random.nextBytes(b);
dataForEncryption.writeBytes(b);
}
byte[] messageKey = new byte[16];
byte[] messageKeyFull;
boolean incoming = mtprotoVersion == 2 && chat.admin_id != UserConfig.getInstance(currentAccount).getClientUserId();
if (mtprotoVersion == 2) {
messageKeyFull = Utilities.computeSHA256(chat.auth_key, 88 + (incoming ? 8 : 0), 32, dataForEncryption.buffer, 0, dataForEncryption.buffer.limit());
System.arraycopy(messageKeyFull, 8, messageKey, 0, 16);
} else {
messageKeyFull = Utilities.computeSHA1(toEncrypt.buffer);
System.arraycopy(messageKeyFull, messageKeyFull.length - 16, messageKey, 0, 16);
}
toEncrypt.reuse();
MessageKeyData keyData = MessageKeyData.generateMessageKeyData(chat.auth_key, messageKey, incoming, mtprotoVersion);
Utilities.aesIgeEncryption(dataForEncryption.buffer, keyData.aesKey, keyData.aesIv, true, false, 0, dataForEncryption.limit());
NativeByteBuffer data = new NativeByteBuffer(8 + messageKey.length + dataForEncryption.length());
dataForEncryption.position(0);
data.writeInt64(chat.key_fingerprint);
data.writeBytes(messageKey);
data.writeBytes(dataForEncryption);
dataForEncryption.reuse();
data.position(0);
TLObject reqToSend;
if (encryptedFile == null) {
if (req instanceof TLRPC.TL_decryptedMessageService) {
TLRPC.TL_messages_sendEncryptedService req2 = new TLRPC.TL_messages_sendEncryptedService();
req2.data = data;
req2.random_id = req.random_id;
req2.peer = new TLRPC.TL_inputEncryptedChat();
req2.peer.chat_id = chat.id;
req2.peer.access_hash = chat.access_hash;
reqToSend = req2;
} else {
TLRPC.TL_messages_sendEncrypted req2 = new TLRPC.TL_messages_sendEncrypted();
req2.data = data;
req2.random_id = req.random_id;
req2.peer = new TLRPC.TL_inputEncryptedChat();
req2.peer.chat_id = chat.id;
req2.peer.access_hash = chat.access_hash;
reqToSend = req2;
}
} else {
TLRPC.TL_messages_sendEncryptedFile req2 = new TLRPC.TL_messages_sendEncryptedFile();
req2.data = data;
req2.random_id = req.random_id;
req2.peer = new TLRPC.TL_inputEncryptedChat();
req2.peer.chat_id = chat.id;
req2.peer.access_hash = chat.access_hash;
req2.file = encryptedFile;
reqToSend = req2;
}
ConnectionsManager.getInstance(currentAccount).sendRequest(reqToSend, (response, error) -> {
if (error == null) {
if (req.action instanceof TLRPC.TL_decryptedMessageActionNotifyLayer) {
TLRPC.EncryptedChat currentChat = MessagesController.getInstance(currentAccount).getEncryptedChat(chat.id);
if (currentChat == null) {
currentChat = chat;
}
if (currentChat.key_hash == null) {
currentChat.key_hash = AndroidUtilities.calcAuthKeyHash(currentChat.auth_key);
}
if (AndroidUtilities.getPeerLayerVersion(currentChat.layer) >= 46 && currentChat.key_hash.length == 16) {
try {
byte[] sha256 = Utilities.computeSHA256(chat.auth_key, 0, chat.auth_key.length);
byte[] key_hash = new byte[36];
System.arraycopy(chat.key_hash, 0, key_hash, 0, 16);
System.arraycopy(sha256, 0, key_hash, 16, 20);
currentChat.key_hash = key_hash;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(currentChat);
} catch (Throwable e) {
FileLog.e(e);
}
}
sendingNotifyLayer.remove((Integer) currentChat.id);
currentChat.layer = AndroidUtilities.setMyLayerVersion(currentChat.layer, CURRENT_SECRET_CHAT_LAYER);
MessagesStorage.getInstance(currentAccount).updateEncryptedChatLayer(currentChat);
}
}
if (newMsgObj != null) {
if (error == null) {
final String attachPath = newMsgObj.attachPath;
final TLRPC.messages_SentEncryptedMessage res = (TLRPC.messages_SentEncryptedMessage) response;
if (isSecretVisibleMessage(newMsgObj)) {
newMsgObj.date = res.date;
}
int existFlags;
if (newMsg != null && res.file instanceof TLRPC.TL_encryptedFile) {
updateMediaPaths(newMsg, res.file, req, originalPath);
existFlags = newMsg.getMediaExistanceFlags();
} else {
existFlags = 0;
}
MessagesStorage.getInstance(currentAccount).getStorageQueue().postRunnable(() -> {
if (isSecretInvisibleMessage(newMsgObj)) {
res.date = 0;
}
MessagesStorage.getInstance(currentAccount).updateMessageStateAndId(newMsgObj.random_id, newMsgObj.id, newMsgObj.id, res.date, false, 0);
AndroidUtilities.runOnUIThread(() -> {
newMsgObj.send_state = MessageObject.MESSAGE_SEND_STATE_SENT;
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.messageReceivedByServer, newMsgObj.id, newMsgObj.id, newMsgObj, newMsgObj.dialog_id, 0L, existFlags);
SendMessagesHelper.getInstance(currentAccount).processSentMessage(newMsgObj.id);
if (MessageObject.isVideoMessage(newMsgObj) || MessageObject.isNewGifMessage(newMsgObj) || MessageObject.isRoundVideoMessage(newMsgObj)) {
SendMessagesHelper.getInstance(currentAccount).stopVideoService(attachPath);
}
SendMessagesHelper.getInstance(currentAccount).removeFromSendingMessages(newMsgObj.id);
});
});
} else {
MessagesStorage.getInstance(currentAccount).markMessageAsSendError(newMsgObj);
AndroidUtilities.runOnUIThread(() -> {
newMsgObj.send_state = MessageObject.MESSAGE_SEND_STATE_SEND_ERROR;
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.messageSendError, newMsgObj.id);
SendMessagesHelper.getInstance(currentAccount).processSentMessage(newMsgObj.id);
if (MessageObject.isVideoMessage(newMsgObj) || MessageObject.isNewGifMessage(newMsgObj) || MessageObject.isRoundVideoMessage(newMsgObj)) {
SendMessagesHelper.getInstance(currentAccount).stopVideoService(newMsgObj.attachPath);
}
SendMessagesHelper.getInstance(currentAccount).removeFromSendingMessages(newMsgObj.id);
});
}
}
}, ConnectionsManager.RequestFlagInvokeAfter);
} catch (Exception e) {
FileLog.e(e);
}
});
}
private void applyPeerLayer(final TLRPC.EncryptedChat chat, int newPeerLayer) {
int currentPeerLayer = AndroidUtilities.getPeerLayerVersion(chat.layer);
if (newPeerLayer <= currentPeerLayer) {
return;
}
if (chat.key_hash.length == 16 && currentPeerLayer >= 46) {
try {
byte[] sha256 = Utilities.computeSHA256(chat.auth_key, 0, chat.auth_key.length);
byte[] key_hash = new byte[36];
System.arraycopy(chat.key_hash, 0, key_hash, 0, 16);
System.arraycopy(sha256, 0, key_hash, 16, 20);
chat.key_hash = key_hash;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(chat);
} catch (Throwable e) {
FileLog.e(e);
}
}
chat.layer = AndroidUtilities.setPeerLayerVersion(chat.layer, newPeerLayer);
MessagesStorage.getInstance(currentAccount).updateEncryptedChatLayer(chat);
if (currentPeerLayer < CURRENT_SECRET_CHAT_LAYER) {
sendNotifyLayerMessage(chat, null);
}
AndroidUtilities.runOnUIThread(() -> NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.encryptedChatUpdated, chat));
}
public TLRPC.Message processDecryptedObject(final TLRPC.EncryptedChat chat, final TLRPC.EncryptedFile file, int date, TLObject object, boolean new_key_used) {
if (object != null) {
int from_id = chat.admin_id;
if (from_id == UserConfig.getInstance(currentAccount).getClientUserId()) {
from_id = chat.participant_id;
}
if (AndroidUtilities.getPeerLayerVersion(chat.layer) >= 20 && chat.exchange_id == 0 && chat.future_key_fingerprint == 0 && chat.key_use_count_in >= 120) {
requestNewSecretChatKey(chat);
}
if (chat.exchange_id == 0 && chat.future_key_fingerprint != 0 && !new_key_used) {
chat.future_auth_key = new byte[256];
chat.future_key_fingerprint = 0;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(chat);
} else if (chat.exchange_id != 0 && new_key_used) {
chat.key_fingerprint = chat.future_key_fingerprint;
chat.auth_key = chat.future_auth_key;
chat.key_create_date = ConnectionsManager.getInstance(currentAccount).getCurrentTime();
chat.future_auth_key = new byte[256];
chat.future_key_fingerprint = 0;
chat.key_use_count_in = 0;
chat.key_use_count_out = 0;
chat.exchange_id = 0;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(chat);
}
if (object instanceof TLRPC.TL_decryptedMessage) {
TLRPC.TL_decryptedMessage decryptedMessage = (TLRPC.TL_decryptedMessage) object;
TLRPC.TL_message newMessage;
if (AndroidUtilities.getPeerLayerVersion(chat.layer) >= 17) {
newMessage = new TLRPC.TL_message_secret();
newMessage.ttl = decryptedMessage.ttl;
newMessage.entities = decryptedMessage.entities;
} else {
newMessage = new TLRPC.TL_message();
newMessage.ttl = chat.ttl;
}
newMessage.message = decryptedMessage.message;
newMessage.date = date;
newMessage.local_id = newMessage.id = UserConfig.getInstance(currentAccount).getNewMessageId();
UserConfig.getInstance(currentAccount).saveConfig(false);
newMessage.from_id = from_id;
newMessage.to_id = new TLRPC.TL_peerUser();
newMessage.random_id = decryptedMessage.random_id;
newMessage.to_id.user_id = UserConfig.getInstance(currentAccount).getClientUserId();
newMessage.unread = true;
newMessage.flags = TLRPC.MESSAGE_FLAG_HAS_MEDIA | TLRPC.MESSAGE_FLAG_HAS_FROM_ID;
if (decryptedMessage.via_bot_name != null && decryptedMessage.via_bot_name.length() > 0) {
newMessage.via_bot_name = decryptedMessage.via_bot_name;
newMessage.flags |= TLRPC.MESSAGE_FLAG_HAS_BOT_ID;
}
if (decryptedMessage.grouped_id != 0) {
newMessage.grouped_id = decryptedMessage.grouped_id;
newMessage.flags |= 131072;
}
newMessage.dialog_id = ((long) chat.id) << 32;
if (decryptedMessage.reply_to_random_id != 0) {
newMessage.reply_to_random_id = decryptedMessage.reply_to_random_id;
newMessage.flags |= TLRPC.MESSAGE_FLAG_REPLY;
}
if (decryptedMessage.media == null || decryptedMessage.media instanceof TLRPC.TL_decryptedMessageMediaEmpty) {
newMessage.media = new TLRPC.TL_messageMediaEmpty();
} else if (decryptedMessage.media instanceof TLRPC.TL_decryptedMessageMediaWebPage) {
newMessage.media = new TLRPC.TL_messageMediaWebPage();
newMessage.media.webpage = new TLRPC.TL_webPageUrlPending();
newMessage.media.webpage.url = decryptedMessage.media.url;
} else if (decryptedMessage.media instanceof TLRPC.TL_decryptedMessageMediaContact) {
newMessage.media = new TLRPC.TL_messageMediaContact();
newMessage.media.last_name = decryptedMessage.media.last_name;
newMessage.media.first_name = decryptedMessage.media.first_name;
newMessage.media.phone_number = decryptedMessage.media.phone_number;
newMessage.media.user_id = decryptedMessage.media.user_id;
newMessage.media.vcard = "";
} else if (decryptedMessage.media instanceof TLRPC.TL_decryptedMessageMediaGeoPoint) {
newMessage.media = new TLRPC.TL_messageMediaGeo();
newMessage.media.geo = new TLRPC.TL_geoPoint();
newMessage.media.geo.lat = decryptedMessage.media.lat;
newMessage.media.geo._long = decryptedMessage.media._long;
} else if (decryptedMessage.media instanceof TLRPC.TL_decryptedMessageMediaPhoto) {
if (decryptedMessage.media.key == null || decryptedMessage.media.key.length != 32 || decryptedMessage.media.iv == null || decryptedMessage.media.iv.length != 32) {
return null;
}
newMessage.media = new TLRPC.TL_messageMediaPhoto();
newMessage.media.flags |= 3;
newMessage.message = decryptedMessage.media.caption != null ? decryptedMessage.media.caption : "";
newMessage.media.photo = new TLRPC.TL_photo();
newMessage.media.photo.file_reference = new byte[0];
newMessage.media.photo.date = newMessage.date;
byte[] thumb = ((TLRPC.TL_decryptedMessageMediaPhoto) decryptedMessage.media).thumb;
if (thumb != null && thumb.length != 0 && thumb.length <= 6000 && decryptedMessage.media.thumb_w <= 100 && decryptedMessage.media.thumb_h <= 100) {
TLRPC.TL_photoCachedSize small = new TLRPC.TL_photoCachedSize();
small.w = decryptedMessage.media.thumb_w;
small.h = decryptedMessage.media.thumb_h;
small.bytes = thumb;
small.type = "s";
small.location = new TLRPC.TL_fileLocationUnavailable();
newMessage.media.photo.sizes.add(small);
}
if (newMessage.ttl != 0) {
newMessage.media.ttl_seconds = newMessage.ttl;
newMessage.media.flags |= 4;
}
TLRPC.TL_photoSize big = new TLRPC.TL_photoSize();
big.w = decryptedMessage.media.w;
big.h = decryptedMessage.media.h;
big.type = "x";
big.size = file.size;
big.location = new TLRPC.TL_fileEncryptedLocation();
big.location.key = decryptedMessage.media.key;
big.location.iv = decryptedMessage.media.iv;
big.location.dc_id = file.dc_id;
big.location.volume_id = file.id;
big.location.secret = file.access_hash;
big.location.local_id = file.key_fingerprint;
newMessage.media.photo.sizes.add(big);
} else if (decryptedMessage.media instanceof TLRPC.TL_decryptedMessageMediaVideo) {
if (decryptedMessage.media.key == null || decryptedMessage.media.key.length != 32 || decryptedMessage.media.iv == null || decryptedMessage.media.iv.length != 32) {
return null;
}
newMessage.media = new TLRPC.TL_messageMediaDocument();
newMessage.media.flags |= 3;
newMessage.media.document = new TLRPC.TL_documentEncrypted();
newMessage.media.document.key = decryptedMessage.media.key;
newMessage.media.document.iv = decryptedMessage.media.iv;
newMessage.media.document.dc_id = file.dc_id;
newMessage.message = decryptedMessage.media.caption != null ? decryptedMessage.media.caption : "";
newMessage.media.document.date = date;
newMessage.media.document.size = file.size;
newMessage.media.document.id = file.id;
newMessage.media.document.access_hash = file.access_hash;
newMessage.media.document.mime_type = decryptedMessage.media.mime_type;
if (newMessage.media.document.mime_type == null) {
newMessage.media.document.mime_type = "video/mp4";
}
byte[] thumb = ((TLRPC.TL_decryptedMessageMediaVideo) decryptedMessage.media).thumb;
TLRPC.PhotoSize photoSize;
if (thumb != null && thumb.length != 0 && thumb.length <= 6000 && decryptedMessage.media.thumb_w <= 100 && decryptedMessage.media.thumb_h <= 100) {
photoSize = new TLRPC.TL_photoCachedSize();
photoSize.bytes = thumb;
photoSize.w = decryptedMessage.media.thumb_w;
photoSize.h = decryptedMessage.media.thumb_h;
photoSize.type = "s";
photoSize.location = new TLRPC.TL_fileLocationUnavailable();
} else {
photoSize = new TLRPC.TL_photoSizeEmpty();
photoSize.type = "s";
}
newMessage.media.document.thumbs.add(photoSize);
newMessage.media.document.flags |= 1;
TLRPC.TL_documentAttributeVideo attributeVideo = new TLRPC.TL_documentAttributeVideo();
attributeVideo.w = decryptedMessage.media.w;
attributeVideo.h = decryptedMessage.media.h;
attributeVideo.duration = decryptedMessage.media.duration;
attributeVideo.supports_streaming = false;
newMessage.media.document.attributes.add(attributeVideo);
if (newMessage.ttl != 0) {
newMessage.media.ttl_seconds = newMessage.ttl;
newMessage.media.flags |= 4;
}
if (newMessage.ttl != 0) {
newMessage.ttl = Math.max(decryptedMessage.media.duration + 1, newMessage.ttl);
}
} else if (decryptedMessage.media instanceof TLRPC.TL_decryptedMessageMediaDocument) {
if (decryptedMessage.media.key == null || decryptedMessage.media.key.length != 32 || decryptedMessage.media.iv == null || decryptedMessage.media.iv.length != 32) {
return null;
}
newMessage.media = new TLRPC.TL_messageMediaDocument();
newMessage.media.flags |= 3;
newMessage.message = decryptedMessage.media.caption != null ? decryptedMessage.media.caption : "";
newMessage.media.document = new TLRPC.TL_documentEncrypted();
newMessage.media.document.id = file.id;
newMessage.media.document.access_hash = file.access_hash;
newMessage.media.document.date = date;
if (decryptedMessage.media instanceof TLRPC.TL_decryptedMessageMediaDocument_layer8) {
TLRPC.TL_documentAttributeFilename fileName = new TLRPC.TL_documentAttributeFilename();
fileName.file_name = decryptedMessage.media.file_name;
newMessage.media.document.attributes.add(fileName);
} else {
newMessage.media.document.attributes = decryptedMessage.media.attributes;
}
newMessage.media.document.mime_type = decryptedMessage.media.mime_type;
newMessage.media.document.size = decryptedMessage.media.size != 0 ? Math.min(decryptedMessage.media.size, file.size) : file.size;
newMessage.media.document.key = decryptedMessage.media.key;
newMessage.media.document.iv = decryptedMessage.media.iv;
if (newMessage.media.document.mime_type == null) {
newMessage.media.document.mime_type = "";
}
byte[] thumb = ((TLRPC.TL_decryptedMessageMediaDocument) decryptedMessage.media).thumb;
TLRPC.PhotoSize photoSize;
if (thumb != null && thumb.length != 0 && thumb.length <= 6000 && decryptedMessage.media.thumb_w <= 100 && decryptedMessage.media.thumb_h <= 100) {
photoSize = new TLRPC.TL_photoCachedSize();
photoSize.bytes = thumb;
photoSize.w = decryptedMessage.media.thumb_w;
photoSize.h = decryptedMessage.media.thumb_h;
photoSize.type = "s";
photoSize.location = new TLRPC.TL_fileLocationUnavailable();
} else {
photoSize = new TLRPC.TL_photoSizeEmpty();
photoSize.type = "s";
}
newMessage.media.document.thumbs.add(photoSize);
newMessage.media.document.flags |= 1;
newMessage.media.document.dc_id = file.dc_id;
if (MessageObject.isVoiceMessage(newMessage) || MessageObject.isRoundVideoMessage(newMessage)) {
newMessage.media_unread = true;
}
} else if (decryptedMessage.media instanceof TLRPC.TL_decryptedMessageMediaExternalDocument) {
newMessage.media = new TLRPC.TL_messageMediaDocument();
newMessage.media.flags |= 3;
newMessage.message = "";
newMessage.media.document = new TLRPC.TL_document();
newMessage.media.document.id = decryptedMessage.media.id;
newMessage.media.document.access_hash = decryptedMessage.media.access_hash;
newMessage.media.document.file_reference = new byte[0];
newMessage.media.document.date = decryptedMessage.media.date;
newMessage.media.document.attributes = decryptedMessage.media.attributes;
newMessage.media.document.mime_type = decryptedMessage.media.mime_type;
newMessage.media.document.dc_id = decryptedMessage.media.dc_id;
newMessage.media.document.size = decryptedMessage.media.size;
newMessage.media.document.thumbs.add(((TLRPC.TL_decryptedMessageMediaExternalDocument) decryptedMessage.media).thumb);
newMessage.media.document.flags |= 1;
if (newMessage.media.document.mime_type == null) {
newMessage.media.document.mime_type = "";
}
} else if (decryptedMessage.media instanceof TLRPC.TL_decryptedMessageMediaAudio) {
if (decryptedMessage.media.key == null || decryptedMessage.media.key.length != 32 || decryptedMessage.media.iv == null || decryptedMessage.media.iv.length != 32) {
return null;
}
newMessage.media = new TLRPC.TL_messageMediaDocument();
newMessage.media.flags |= 3;
newMessage.media.document = new TLRPC.TL_documentEncrypted();
newMessage.media.document.key = decryptedMessage.media.key;
newMessage.media.document.iv = decryptedMessage.media.iv;
newMessage.media.document.id = file.id;
newMessage.media.document.access_hash = file.access_hash;
newMessage.media.document.date = date;
newMessage.media.document.size = file.size;
newMessage.media.document.dc_id = file.dc_id;
newMessage.media.document.mime_type = decryptedMessage.media.mime_type;
newMessage.message = decryptedMessage.media.caption != null ? decryptedMessage.media.caption : "";
if (newMessage.media.document.mime_type == null) {
newMessage.media.document.mime_type = "audio/ogg";
}
TLRPC.TL_documentAttributeAudio attributeAudio = new TLRPC.TL_documentAttributeAudio();
attributeAudio.duration = decryptedMessage.media.duration;
attributeAudio.voice = true;
newMessage.media.document.attributes.add(attributeAudio);
if (newMessage.ttl != 0) {
newMessage.ttl = Math.max(decryptedMessage.media.duration + 1, newMessage.ttl);
}
if (newMessage.media.document.thumbs.isEmpty()) {
TLRPC.PhotoSize thumb = new TLRPC.TL_photoSizeEmpty();
thumb.type = "s";
newMessage.media.document.thumbs.add(thumb);
}
} else if (decryptedMessage.media instanceof TLRPC.TL_decryptedMessageMediaVenue) {
newMessage.media = new TLRPC.TL_messageMediaVenue();
newMessage.media.geo = new TLRPC.TL_geoPoint();
newMessage.media.geo.lat = decryptedMessage.media.lat;
newMessage.media.geo._long = decryptedMessage.media._long;
newMessage.media.title = decryptedMessage.media.title;
newMessage.media.address = decryptedMessage.media.address;
newMessage.media.provider = decryptedMessage.media.provider;
newMessage.media.venue_id = decryptedMessage.media.venue_id;
newMessage.media.venue_type = "";
} else {
return null;
}
if (newMessage.ttl != 0 && newMessage.media.ttl_seconds == 0) {
newMessage.media.ttl_seconds = newMessage.ttl;
newMessage.media.flags |= 4;
}
return newMessage;
} else if (object instanceof TLRPC.TL_decryptedMessageService) {
final TLRPC.TL_decryptedMessageService serviceMessage = (TLRPC.TL_decryptedMessageService) object;
if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionSetMessageTTL || serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionScreenshotMessages) {
TLRPC.TL_messageService newMessage = new TLRPC.TL_messageService();
if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionSetMessageTTL) {
newMessage.action = new TLRPC.TL_messageEncryptedAction();
if (serviceMessage.action.ttl_seconds < 0 || serviceMessage.action.ttl_seconds > 60 * 60 * 24 * 365) {
serviceMessage.action.ttl_seconds = 60 * 60 * 24 * 365;
}
chat.ttl = serviceMessage.action.ttl_seconds;
newMessage.action.encryptedAction = serviceMessage.action;
MessagesStorage.getInstance(currentAccount).updateEncryptedChatTTL(chat);
} else if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionScreenshotMessages) {
newMessage.action = new TLRPC.TL_messageEncryptedAction();
newMessage.action.encryptedAction = serviceMessage.action;
}
newMessage.local_id = newMessage.id = UserConfig.getInstance(currentAccount).getNewMessageId();
UserConfig.getInstance(currentAccount).saveConfig(false);
newMessage.unread = true;
newMessage.flags = TLRPC.MESSAGE_FLAG_HAS_FROM_ID;
newMessage.date = date;
newMessage.from_id = from_id;
newMessage.to_id = new TLRPC.TL_peerUser();
newMessage.to_id.user_id = UserConfig.getInstance(currentAccount).getClientUserId();
newMessage.dialog_id = ((long) chat.id) << 32;
return newMessage;
} else if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionFlushHistory) {
final long did = ((long) chat.id) << 32;
AndroidUtilities.runOnUIThread(() -> {
TLRPC.TL_dialog dialog = MessagesController.getInstance(currentAccount).dialogs_dict.get(did);
if (dialog != null) {
dialog.unread_count = 0;
MessagesController.getInstance(currentAccount).dialogMessage.remove(dialog.id);
}
MessagesStorage.getInstance(currentAccount).getStorageQueue().postRunnable(() -> AndroidUtilities.runOnUIThread(() -> {
NotificationsController.getInstance(currentAccount).processReadMessages(null, did, 0, Integer.MAX_VALUE, false);
LongSparseArray<Integer> dialogsToUpdate = new LongSparseArray<>(1);
dialogsToUpdate.put(did, 0);
NotificationsController.getInstance(currentAccount).processDialogsUpdateRead(dialogsToUpdate);
}));
MessagesStorage.getInstance(currentAccount).deleteDialog(did, 1);
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.dialogsNeedReload);
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.removeAllMessagesFromDialog, did, false);
});
return null;
} else if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionDeleteMessages) {
if (!serviceMessage.action.random_ids.isEmpty()) {
pendingEncMessagesToDelete.addAll(serviceMessage.action.random_ids);
}
return null;
} else if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionReadMessages) {
if (!serviceMessage.action.random_ids.isEmpty()) {
int time = ConnectionsManager.getInstance(currentAccount).getCurrentTime();
MessagesStorage.getInstance(currentAccount).createTaskForSecretChat(chat.id, time, time, 1, serviceMessage.action.random_ids);
}
} else if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionNotifyLayer) {
applyPeerLayer(chat, serviceMessage.action.layer);
} else if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionRequestKey) {
if (chat.exchange_id != 0) {
if (chat.exchange_id > serviceMessage.action.exchange_id) {
if (BuildVars.LOGS_ENABLED) {
FileLog.d("we already have request key with higher exchange_id");
}
return null;
} else {
sendAbortKeyMessage(chat, null, chat.exchange_id); //TODO don't send?
}
}
byte[] salt = new byte[256];
Utilities.random.nextBytes(salt);
BigInteger p = new BigInteger(1, MessagesStorage.getInstance(currentAccount).getSecretPBytes());
BigInteger g_b = BigInteger.valueOf(MessagesStorage.getInstance(currentAccount).getSecretG());
g_b = g_b.modPow(new BigInteger(1, salt), p);
BigInteger g_a = new BigInteger(1, serviceMessage.action.g_a);
if (!Utilities.isGoodGaAndGb(g_a, p)) {
sendAbortKeyMessage(chat, null, serviceMessage.action.exchange_id);
return null;
}
byte[] g_b_bytes = g_b.toByteArray();
if (g_b_bytes.length > 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(g_b_bytes, 1, correctedAuth, 0, 256);
g_b_bytes = correctedAuth;
}
g_a = g_a.modPow(new BigInteger(1, salt), p);
byte[] authKey = g_a.toByteArray();
if (authKey.length > 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(authKey, authKey.length - 256, correctedAuth, 0, 256);
authKey = correctedAuth;
} else if (authKey.length < 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(authKey, 0, correctedAuth, 256 - authKey.length, authKey.length);
for (int a = 0; a < 256 - authKey.length; a++) {
correctedAuth[a] = 0;
}
authKey = correctedAuth;
}
byte[] authKeyHash = Utilities.computeSHA1(authKey);
byte[] authKeyId = new byte[8];
System.arraycopy(authKeyHash, authKeyHash.length - 8, authKeyId, 0, 8);
chat.exchange_id = serviceMessage.action.exchange_id;
chat.future_auth_key = authKey;
chat.future_key_fingerprint = Utilities.bytesToLong(authKeyId);
chat.g_a_or_b = g_b_bytes;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(chat);
sendAcceptKeyMessage(chat, null);
} else if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionAcceptKey) {
if (chat.exchange_id == serviceMessage.action.exchange_id) {
BigInteger p = new BigInteger(1, MessagesStorage.getInstance(currentAccount).getSecretPBytes());
BigInteger i_authKey = new BigInteger(1, serviceMessage.action.g_b);
if (!Utilities.isGoodGaAndGb(i_authKey, p)) {
chat.future_auth_key = new byte[256];
chat.future_key_fingerprint = 0;
chat.exchange_id = 0;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(chat);
sendAbortKeyMessage(chat, null, serviceMessage.action.exchange_id);
return null;
}
i_authKey = i_authKey.modPow(new BigInteger(1, chat.a_or_b), p);
byte[] authKey = i_authKey.toByteArray();
if (authKey.length > 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(authKey, authKey.length - 256, correctedAuth, 0, 256);
authKey = correctedAuth;
} else if (authKey.length < 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(authKey, 0, correctedAuth, 256 - authKey.length, authKey.length);
for (int a = 0; a < 256 - authKey.length; a++) {
correctedAuth[a] = 0;
}
authKey = correctedAuth;
}
byte[] authKeyHash = Utilities.computeSHA1(authKey);
byte[] authKeyId = new byte[8];
System.arraycopy(authKeyHash, authKeyHash.length - 8, authKeyId, 0, 8);
long fingerprint = Utilities.bytesToLong(authKeyId);
if (serviceMessage.action.key_fingerprint == fingerprint) {
chat.future_auth_key = authKey;
chat.future_key_fingerprint = fingerprint;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(chat);
sendCommitKeyMessage(chat, null);
} else {
chat.future_auth_key = new byte[256];
chat.future_key_fingerprint = 0;
chat.exchange_id = 0;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(chat);
sendAbortKeyMessage(chat, null, serviceMessage.action.exchange_id);
}
} else {
chat.future_auth_key = new byte[256];
chat.future_key_fingerprint = 0;
chat.exchange_id = 0;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(chat);
sendAbortKeyMessage(chat, null, serviceMessage.action.exchange_id);
}
} else if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionCommitKey) {
if (chat.exchange_id == serviceMessage.action.exchange_id && chat.future_key_fingerprint == serviceMessage.action.key_fingerprint) {
long old_fingerpring = chat.key_fingerprint;
byte[] old_key = chat.auth_key;
chat.key_fingerprint = chat.future_key_fingerprint;
chat.auth_key = chat.future_auth_key;
chat.key_create_date = ConnectionsManager.getInstance(currentAccount).getCurrentTime();
chat.future_auth_key = old_key;
chat.future_key_fingerprint = old_fingerpring;
chat.key_use_count_in = 0;
chat.key_use_count_out = 0;
chat.exchange_id = 0;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(chat);
sendNoopMessage(chat, null);
} else {
chat.future_auth_key = new byte[256];
chat.future_key_fingerprint = 0;
chat.exchange_id = 0;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(chat);
sendAbortKeyMessage(chat, null, serviceMessage.action.exchange_id);
}
} else if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionAbortKey) {
if (chat.exchange_id == serviceMessage.action.exchange_id) {
chat.future_auth_key = new byte[256];
chat.future_key_fingerprint = 0;
chat.exchange_id = 0;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(chat);
}
} else if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionNoop) {
//do nothing
} else if (serviceMessage.action instanceof TLRPC.TL_decryptedMessageActionResend) {
if (serviceMessage.action.end_seq_no < chat.in_seq_no || serviceMessage.action.end_seq_no < serviceMessage.action.start_seq_no) {
return null;
}
if (serviceMessage.action.start_seq_no < chat.in_seq_no) {
serviceMessage.action.start_seq_no = chat.in_seq_no;
}
resendMessages(serviceMessage.action.start_seq_no, serviceMessage.action.end_seq_no, chat);
} else {
return null;
}
} else {
if (BuildVars.LOGS_ENABLED) {
FileLog.e("unknown message " + object);
}
}
} else {
if (BuildVars.LOGS_ENABLED) {
FileLog.e("unknown TLObject");
}
}
return null;
}
private TLRPC.Message createDeleteMessage(int mid, int seq_out, int seq_in, long random_id, TLRPC.EncryptedChat encryptedChat) {
TLRPC.TL_messageService newMsg = new TLRPC.TL_messageService();
newMsg.action = new TLRPC.TL_messageEncryptedAction();
newMsg.action.encryptedAction = new TLRPC.TL_decryptedMessageActionDeleteMessages();
newMsg.action.encryptedAction.random_ids.add(random_id);
newMsg.local_id = newMsg.id = mid;
newMsg.from_id = UserConfig.getInstance(currentAccount).getClientUserId();
newMsg.unread = true;
newMsg.out = true;
newMsg.flags = TLRPC.MESSAGE_FLAG_HAS_FROM_ID;
newMsg.dialog_id = ((long) encryptedChat.id) << 32;
newMsg.to_id = new TLRPC.TL_peerUser();
newMsg.send_state = MessageObject.MESSAGE_SEND_STATE_SENDING;
newMsg.seq_in = seq_in;
newMsg.seq_out = seq_out;
if (encryptedChat.participant_id == UserConfig.getInstance(currentAccount).getClientUserId()) {
newMsg.to_id.user_id = encryptedChat.admin_id;
} else {
newMsg.to_id.user_id = encryptedChat.participant_id;
}
newMsg.date = 0;
newMsg.random_id = random_id;
return newMsg;
}
private void resendMessages(final int startSeq, final int endSeq, final TLRPC.EncryptedChat encryptedChat) {
if (encryptedChat == null || endSeq - startSeq < 0) {
return;
}
MessagesStorage.getInstance(currentAccount).getStorageQueue().postRunnable(() -> {
try {
int sSeq = startSeq;
if (encryptedChat.admin_id == UserConfig.getInstance(currentAccount).getClientUserId() && sSeq % 2 == 0) {
sSeq++;
}
SQLiteCursor cursor = MessagesStorage.getInstance(currentAccount).getDatabase().queryFinalized(String.format(Locale.US, "SELECT uid FROM requested_holes WHERE uid = %d AND ((seq_out_start >= %d AND %d <= seq_out_end) OR (seq_out_start >= %d AND %d <= seq_out_end))", encryptedChat.id, sSeq, sSeq, endSeq, endSeq));
boolean exists = cursor.next();
cursor.dispose();
if (exists) {
return;
}
long dialog_id = ((long) encryptedChat.id) << 32;
SparseArray<TLRPC.Message> messagesToResend = new SparseArray<>();
final ArrayList<TLRPC.Message> messages = new ArrayList<>();
for (int a = sSeq; a < endSeq; a += 2) {
messagesToResend.put(a, null);
}
cursor = MessagesStorage.getInstance(currentAccount).getDatabase().queryFinalized(String.format(Locale.US, "SELECT m.data, r.random_id, s.seq_in, s.seq_out, m.ttl, s.mid FROM messages_seq as s LEFT JOIN randoms as r ON r.mid = s.mid LEFT JOIN messages as m ON m.mid = s.mid WHERE m.uid = %d AND m.out = 1 AND s.seq_out >= %d AND s.seq_out <= %d ORDER BY seq_out ASC", dialog_id, sSeq, endSeq));
while (cursor.next()) {
TLRPC.Message message;
long random_id = cursor.longValue(1);
if (random_id == 0) {
random_id = Utilities.random.nextLong();
}
int seq_in = cursor.intValue(2);
int seq_out = cursor.intValue(3);
int mid = cursor.intValue(5);
NativeByteBuffer data = cursor.byteBufferValue(0);
if (data != null) {
message = TLRPC.Message.TLdeserialize(data, data.readInt32(false), false);
message.readAttachPath(data, UserConfig.getInstance(currentAccount).clientUserId);
data.reuse();
message.random_id = random_id;
message.dialog_id = dialog_id;
message.seq_in = seq_in;
message.seq_out = seq_out;
message.ttl = cursor.intValue(4);
} else {
message = createDeleteMessage(mid, seq_out, seq_in, random_id, encryptedChat);
}
messages.add(message);
messagesToResend.remove(seq_out);
}
cursor.dispose();
if (messagesToResend.size() != 0) {
for (int a = 0; a < messagesToResend.size(); a++) {
messages.add(createDeleteMessage(UserConfig.getInstance(currentAccount).getNewMessageId(), messagesToResend.keyAt(a), 0, Utilities.random.nextLong(), encryptedChat));
}
UserConfig.getInstance(currentAccount).saveConfig(false);
}
Collections.sort(messages, (lhs, rhs) -> AndroidUtilities.compare(lhs.seq_out, rhs.seq_out));
ArrayList<TLRPC.EncryptedChat> encryptedChats = new ArrayList<>();
encryptedChats.add(encryptedChat);
AndroidUtilities.runOnUIThread(() -> {
for (int a = 0; a < messages.size(); a++) {
TLRPC.Message message = messages.get(a);
MessageObject messageObject = new MessageObject(currentAccount, message, false);
messageObject.resendAsIs = true;
SendMessagesHelper.getInstance(currentAccount).retrySendMessage(messageObject, true);
}
});
SendMessagesHelper.getInstance(currentAccount).processUnsentMessages(messages, new ArrayList<>(), new ArrayList<>(), encryptedChats);
MessagesStorage.getInstance(currentAccount).getDatabase().executeFast(String.format(Locale.US, "REPLACE INTO requested_holes VALUES(%d, %d, %d)", encryptedChat.id, sSeq, endSeq)).stepThis().dispose();
} catch (Exception e) {
FileLog.e(e);
}
});
}
public void checkSecretHoles(TLRPC.EncryptedChat chat, ArrayList<TLRPC.Message> messages) {
ArrayList<TL_decryptedMessageHolder> holes = secretHolesQueue.get(chat.id);
if (holes == null) {
return;
}
Collections.sort(holes, (lhs, rhs) -> {
if (lhs.layer.out_seq_no > rhs.layer.out_seq_no) {
return 1;
} else if (lhs.layer.out_seq_no < rhs.layer.out_seq_no) {
return -1;
}
return 0;
});
boolean update = false;
for (int a = 0; a < holes.size(); a++) {
TL_decryptedMessageHolder holder = holes.get(a);
if (holder.layer.out_seq_no == chat.seq_in || chat.seq_in == holder.layer.out_seq_no - 2) {
applyPeerLayer(chat, holder.layer.layer);
chat.seq_in = holder.layer.out_seq_no;
chat.in_seq_no = holder.layer.in_seq_no;
holes.remove(a);
a--;
update = true;
if (holder.decryptedWithVersion == 2) {
chat.mtproto_seq = Math.min(chat.mtproto_seq, chat.seq_in);
}
TLRPC.Message message = processDecryptedObject(chat, holder.file, holder.date, holder.layer.message, holder.new_key_used);
if (message != null) {
messages.add(message);
}
} else {
break;
}
}
if (holes.isEmpty()) {
secretHolesQueue.remove(chat.id);
}
if (update) {
MessagesStorage.getInstance(currentAccount).updateEncryptedChatSeq(chat, true);
}
}
private boolean decryptWithMtProtoVersion(NativeByteBuffer is, byte[] keyToDecrypt, byte[] messageKey, int version, boolean incoming, boolean encryptOnError) {
if (version == 1) {
incoming = false;
}
MessageKeyData keyData = MessageKeyData.generateMessageKeyData(keyToDecrypt, messageKey, incoming, version);
Utilities.aesIgeEncryption(is.buffer, keyData.aesKey, keyData.aesIv, false, false, 24, is.limit() - 24);
int len = is.readInt32(false);
byte[] messageKeyFull;
if (version == 2) {
messageKeyFull = Utilities.computeSHA256(keyToDecrypt, 88 + (incoming ? 8 : 0), 32, is.buffer, 24, is.buffer.limit());
if (!Utilities.arraysEquals(messageKey, 0, messageKeyFull, 8)) {
if (encryptOnError) {
Utilities.aesIgeEncryption(is.buffer, keyData.aesKey, keyData.aesIv, true, false, 24, is.limit() - 24);
is.position(24);
}
return false;
}
} else {
int l = len + 28;
if (l < is.buffer.limit() - 15 || l > is.buffer.limit()) {
l = is.buffer.limit();
}
messageKeyFull = Utilities.computeSHA1(is.buffer, 24, l);
if (!Utilities.arraysEquals(messageKey, 0, messageKeyFull, messageKeyFull.length - 16)) {
if (encryptOnError) {
Utilities.aesIgeEncryption(is.buffer, keyData.aesKey, keyData.aesIv, true, false, 24, is.limit() - 24);
is.position(24);
}
return false;
}
}
if (len <= 0 || len > is.limit() - 28) {
return false;
}
int padding = is.limit() - 28 - len;
if (version == 2 && (padding < 12 || padding > 1024) || version == 1 && padding > 15) {
return false;
}
//
return true;
}
protected ArrayList<TLRPC.Message> decryptMessage(TLRPC.EncryptedMessage message) {
final TLRPC.EncryptedChat chat = MessagesController.getInstance(currentAccount).getEncryptedChatDB(message.chat_id, true);
if (chat == null || chat instanceof TLRPC.TL_encryptedChatDiscarded) {
return null;
}
try {
NativeByteBuffer is = new NativeByteBuffer(message.bytes.length);
is.writeBytes(message.bytes);
is.position(0);
long fingerprint = is.readInt64(false);
byte[] keyToDecrypt = null;
boolean new_key_used = false;
if (chat.key_fingerprint == fingerprint) {
keyToDecrypt = chat.auth_key;
} else if (chat.future_key_fingerprint != 0 && chat.future_key_fingerprint == fingerprint) {
keyToDecrypt = chat.future_auth_key;
new_key_used = true;
}
int mtprotoVersion = AndroidUtilities.getPeerLayerVersion(chat.layer) >= 73 ? 2 : 1;
int decryptedWithVersion = mtprotoVersion;
if (keyToDecrypt != null) {
byte[] messageKey = is.readData(16, false);
boolean incoming = chat.admin_id == UserConfig.getInstance(currentAccount).getClientUserId();
boolean tryAnotherDecrypt = true;
if (decryptedWithVersion == 2 && chat.mtproto_seq != 0) {
tryAnotherDecrypt = false;
}
if (!decryptWithMtProtoVersion(is, keyToDecrypt, messageKey, mtprotoVersion, incoming, tryAnotherDecrypt)) {
if (mtprotoVersion == 2) {
decryptedWithVersion = 1;
if (!tryAnotherDecrypt || !decryptWithMtProtoVersion(is, keyToDecrypt, messageKey, 1, incoming, false)) {
return null;
}
} else {
decryptedWithVersion = 2;
if (!decryptWithMtProtoVersion(is, keyToDecrypt, messageKey, 2, incoming, tryAnotherDecrypt)) {
return null;
}
}
}
TLObject object = TLClassStore.Instance().TLdeserialize(is, is.readInt32(false), false);
is.reuse();
if (!new_key_used && AndroidUtilities.getPeerLayerVersion(chat.layer) >= 20) {
chat.key_use_count_in++;
}
if (object instanceof TLRPC.TL_decryptedMessageLayer) {
final TLRPC.TL_decryptedMessageLayer layer = (TLRPC.TL_decryptedMessageLayer) object;
if (chat.seq_in == 0 && chat.seq_out == 0) {
if (chat.admin_id == UserConfig.getInstance(currentAccount).getClientUserId()) {
chat.seq_out = 1;
chat.seq_in = -2;
} else {
chat.seq_in = -1;
}
}
if (layer.random_bytes.length < 15) {
if (BuildVars.LOGS_ENABLED) {
FileLog.e("got random bytes less than needed");
}
return null;
}
if (BuildVars.LOGS_ENABLED) {
FileLog.d("current chat in_seq = " + chat.seq_in + " out_seq = " + chat.seq_out);
FileLog.d("got message with in_seq = " + layer.in_seq_no + " out_seq = " + layer.out_seq_no);
}
if (layer.out_seq_no <= chat.seq_in) {
return null;
}
if (decryptedWithVersion == 1 && chat.mtproto_seq != 0 && layer.out_seq_no >= chat.mtproto_seq) {
return null;
}
if (chat.seq_in != layer.out_seq_no - 2) {
if (BuildVars.LOGS_ENABLED) {
FileLog.e("got hole");
}
ArrayList<TL_decryptedMessageHolder> arr = secretHolesQueue.get(chat.id);
if (arr == null) {
arr = new ArrayList<>();
secretHolesQueue.put(chat.id, arr);
}
if (arr.size() >= 4) {
secretHolesQueue.remove(chat.id);
final TLRPC.TL_encryptedChatDiscarded newChat = new TLRPC.TL_encryptedChatDiscarded();
newChat.id = chat.id;
newChat.user_id = chat.user_id;
newChat.auth_key = chat.auth_key;
newChat.key_create_date = chat.key_create_date;
newChat.key_use_count_in = chat.key_use_count_in;
newChat.key_use_count_out = chat.key_use_count_out;
newChat.seq_in = chat.seq_in;
newChat.seq_out = chat.seq_out;
AndroidUtilities.runOnUIThread(() -> {
MessagesController.getInstance(currentAccount).putEncryptedChat(newChat, false);
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(newChat);
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.encryptedChatUpdated, newChat);
});
declineSecretChat(chat.id);
return null;
}
TL_decryptedMessageHolder holder = new TL_decryptedMessageHolder();
holder.layer = layer;
holder.file = message.file;
holder.date = message.date;
holder.new_key_used = new_key_used;
holder.decryptedWithVersion = decryptedWithVersion;
arr.add(holder);
return null;
}
if (decryptedWithVersion == 2) {
chat.mtproto_seq = Math.min(chat.mtproto_seq, chat.seq_in);
}
applyPeerLayer(chat, layer.layer);
chat.seq_in = layer.out_seq_no;
chat.in_seq_no = layer.in_seq_no;
MessagesStorage.getInstance(currentAccount).updateEncryptedChatSeq(chat, true);
object = layer.message;
} else if (!(object instanceof TLRPC.TL_decryptedMessageService && ((TLRPC.TL_decryptedMessageService) object).action instanceof TLRPC.TL_decryptedMessageActionNotifyLayer)) {
return null;
}
ArrayList<TLRPC.Message> messages = new ArrayList<>();
TLRPC.Message decryptedMessage = processDecryptedObject(chat, message.file, message.date, object, new_key_used);
if (decryptedMessage != null) {
messages.add(decryptedMessage);
}
checkSecretHoles(chat, messages);
return messages;
} else {
is.reuse();
if (BuildVars.LOGS_ENABLED) {
FileLog.e(String.format("fingerprint mismatch %x", fingerprint));
}
}
} catch (Exception e) {
FileLog.e(e);
}
return null;
}
public void requestNewSecretChatKey(final TLRPC.EncryptedChat encryptedChat) {
if (AndroidUtilities.getPeerLayerVersion(encryptedChat.layer) < 20) {
return;
}
final byte[] salt = new byte[256];
Utilities.random.nextBytes(salt);
BigInteger i_g_a = BigInteger.valueOf(MessagesStorage.getInstance(currentAccount).getSecretG());
i_g_a = i_g_a.modPow(new BigInteger(1, salt), new BigInteger(1, MessagesStorage.getInstance(currentAccount).getSecretPBytes()));
byte[] g_a = i_g_a.toByteArray();
if (g_a.length > 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(g_a, 1, correctedAuth, 0, 256);
g_a = correctedAuth;
}
encryptedChat.exchange_id = SendMessagesHelper.getInstance(currentAccount).getNextRandomId();
encryptedChat.a_or_b = salt;
encryptedChat.g_a = g_a;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(encryptedChat);
sendRequestKeyMessage(encryptedChat, null);
}
public void processAcceptedSecretChat(final TLRPC.EncryptedChat encryptedChat) {
BigInteger p = new BigInteger(1, MessagesStorage.getInstance(currentAccount).getSecretPBytes());
BigInteger i_authKey = new BigInteger(1, encryptedChat.g_a_or_b);
if (!Utilities.isGoodGaAndGb(i_authKey, p)) {
declineSecretChat(encryptedChat.id);
return;
}
i_authKey = i_authKey.modPow(new BigInteger(1, encryptedChat.a_or_b), p);
byte[] authKey = i_authKey.toByteArray();
if (authKey.length > 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(authKey, authKey.length - 256, correctedAuth, 0, 256);
authKey = correctedAuth;
} else if (authKey.length < 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(authKey, 0, correctedAuth, 256 - authKey.length, authKey.length);
for (int a = 0; a < 256 - authKey.length; a++) {
correctedAuth[a] = 0;
}
authKey = correctedAuth;
}
byte[] authKeyHash = Utilities.computeSHA1(authKey);
byte[] authKeyId = new byte[8];
System.arraycopy(authKeyHash, authKeyHash.length - 8, authKeyId, 0, 8);
long fingerprint = Utilities.bytesToLong(authKeyId);
if (encryptedChat.key_fingerprint == fingerprint) {
encryptedChat.auth_key = authKey;
encryptedChat.key_create_date = ConnectionsManager.getInstance(currentAccount).getCurrentTime();
encryptedChat.seq_in = -2;
encryptedChat.seq_out = 1;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(encryptedChat);
MessagesController.getInstance(currentAccount).putEncryptedChat(encryptedChat, false);
AndroidUtilities.runOnUIThread(() -> {
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.encryptedChatUpdated, encryptedChat);
sendNotifyLayerMessage(encryptedChat, null);
});
} else {
final TLRPC.TL_encryptedChatDiscarded newChat = new TLRPC.TL_encryptedChatDiscarded();
newChat.id = encryptedChat.id;
newChat.user_id = encryptedChat.user_id;
newChat.auth_key = encryptedChat.auth_key;
newChat.key_create_date = encryptedChat.key_create_date;
newChat.key_use_count_in = encryptedChat.key_use_count_in;
newChat.key_use_count_out = encryptedChat.key_use_count_out;
newChat.seq_in = encryptedChat.seq_in;
newChat.seq_out = encryptedChat.seq_out;
newChat.admin_id = encryptedChat.admin_id;
newChat.mtproto_seq = encryptedChat.mtproto_seq;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(newChat);
AndroidUtilities.runOnUIThread(() -> {
MessagesController.getInstance(currentAccount).putEncryptedChat(newChat, false);
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.encryptedChatUpdated, newChat);
});
declineSecretChat(encryptedChat.id);
}
}
public void declineSecretChat(int chat_id) {
TLRPC.TL_messages_discardEncryption req = new TLRPC.TL_messages_discardEncryption();
req.chat_id = chat_id;
ConnectionsManager.getInstance(currentAccount).sendRequest(req, (response, error) -> {
});
}
public void acceptSecretChat(final TLRPC.EncryptedChat encryptedChat) {
if (acceptingChats.get(encryptedChat.id) != null) {
return;
}
acceptingChats.put(encryptedChat.id, encryptedChat);
TLRPC.TL_messages_getDhConfig req = new TLRPC.TL_messages_getDhConfig();
req.random_length = 256;
req.version = MessagesStorage.getInstance(currentAccount).getLastSecretVersion();
ConnectionsManager.getInstance(currentAccount).sendRequest(req, (response, error) -> {
if (error == null) {
TLRPC.messages_DhConfig res = (TLRPC.messages_DhConfig) response;
if (response instanceof TLRPC.TL_messages_dhConfig) {
if (!Utilities.isGoodPrime(res.p, res.g)) {
acceptingChats.remove(encryptedChat.id);
declineSecretChat(encryptedChat.id);
return;
}
MessagesStorage.getInstance(currentAccount).setSecretPBytes(res.p);
MessagesStorage.getInstance(currentAccount).setSecretG(res.g);
MessagesStorage.getInstance(currentAccount).setLastSecretVersion(res.version);
MessagesStorage.getInstance(currentAccount).saveSecretParams(MessagesStorage.getInstance(currentAccount).getLastSecretVersion(), MessagesStorage.getInstance(currentAccount).getSecretG(), MessagesStorage.getInstance(currentAccount).getSecretPBytes());
}
byte[] salt = new byte[256];
for (int a = 0; a < 256; a++) {
salt[a] = (byte) ((byte) (Utilities.random.nextDouble() * 256) ^ res.random[a]);
}
encryptedChat.a_or_b = salt;
encryptedChat.seq_in = -1;
encryptedChat.seq_out = 0;
BigInteger p = new BigInteger(1, MessagesStorage.getInstance(currentAccount).getSecretPBytes());
BigInteger g_b = BigInteger.valueOf(MessagesStorage.getInstance(currentAccount).getSecretG());
g_b = g_b.modPow(new BigInteger(1, salt), p);
BigInteger g_a = new BigInteger(1, encryptedChat.g_a);
if (!Utilities.isGoodGaAndGb(g_a, p)) {
acceptingChats.remove(encryptedChat.id);
declineSecretChat(encryptedChat.id);
return;
}
byte[] g_b_bytes = g_b.toByteArray();
if (g_b_bytes.length > 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(g_b_bytes, 1, correctedAuth, 0, 256);
g_b_bytes = correctedAuth;
}
g_a = g_a.modPow(new BigInteger(1, salt), p);
byte[] authKey = g_a.toByteArray();
if (authKey.length > 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(authKey, authKey.length - 256, correctedAuth, 0, 256);
authKey = correctedAuth;
} else if (authKey.length < 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(authKey, 0, correctedAuth, 256 - authKey.length, authKey.length);
for (int a = 0; a < 256 - authKey.length; a++) {
correctedAuth[a] = 0;
}
authKey = correctedAuth;
}
byte[] authKeyHash = Utilities.computeSHA1(authKey);
byte[] authKeyId = new byte[8];
System.arraycopy(authKeyHash, authKeyHash.length - 8, authKeyId, 0, 8);
encryptedChat.auth_key = authKey;
encryptedChat.key_create_date = ConnectionsManager.getInstance(currentAccount).getCurrentTime();
TLRPC.TL_messages_acceptEncryption req2 = new TLRPC.TL_messages_acceptEncryption();
req2.g_b = g_b_bytes;
req2.peer = new TLRPC.TL_inputEncryptedChat();
req2.peer.chat_id = encryptedChat.id;
req2.peer.access_hash = encryptedChat.access_hash;
req2.key_fingerprint = Utilities.bytesToLong(authKeyId);
ConnectionsManager.getInstance(currentAccount).sendRequest(req2, (response1, error1) -> {
acceptingChats.remove(encryptedChat.id);
if (error1 == null) {
final TLRPC.EncryptedChat newChat = (TLRPC.EncryptedChat) response1;
newChat.auth_key = encryptedChat.auth_key;
newChat.user_id = encryptedChat.user_id;
newChat.seq_in = encryptedChat.seq_in;
newChat.seq_out = encryptedChat.seq_out;
newChat.key_create_date = encryptedChat.key_create_date;
newChat.key_use_count_in = encryptedChat.key_use_count_in;
newChat.key_use_count_out = encryptedChat.key_use_count_out;
MessagesStorage.getInstance(currentAccount).updateEncryptedChat(newChat);
MessagesController.getInstance(currentAccount).putEncryptedChat(newChat, false);
AndroidUtilities.runOnUIThread(() -> {
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.encryptedChatUpdated, newChat);
sendNotifyLayerMessage(newChat, null);
});
}
});
} else {
acceptingChats.remove(encryptedChat.id);
}
});
}
public void startSecretChat(final Context context, final TLRPC.User user) {
if (user == null || context == null) {
return;
}
startingSecretChat = true;
final AlertDialog progressDialog = new AlertDialog(context, 3);
TLRPC.TL_messages_getDhConfig req = new TLRPC.TL_messages_getDhConfig();
req.random_length = 256;
req.version = MessagesStorage.getInstance(currentAccount).getLastSecretVersion();
final int reqId = ConnectionsManager.getInstance(currentAccount).sendRequest(req, (response, error) -> {
if (error == null) {
TLRPC.messages_DhConfig res = (TLRPC.messages_DhConfig) response;
if (response instanceof TLRPC.TL_messages_dhConfig) {
if (!Utilities.isGoodPrime(res.p, res.g)) {
AndroidUtilities.runOnUIThread(() -> {
try {
if (!((Activity) context).isFinishing()) {
progressDialog.dismiss();
}
} catch (Exception e) {
FileLog.e(e);
}
});
return;
}
MessagesStorage.getInstance(currentAccount).setSecretPBytes(res.p);
MessagesStorage.getInstance(currentAccount).setSecretG(res.g);
MessagesStorage.getInstance(currentAccount).setLastSecretVersion(res.version);
MessagesStorage.getInstance(currentAccount).saveSecretParams(MessagesStorage.getInstance(currentAccount).getLastSecretVersion(), MessagesStorage.getInstance(currentAccount).getSecretG(), MessagesStorage.getInstance(currentAccount).getSecretPBytes());
}
final byte[] salt = new byte[256];
for (int a = 0; a < 256; a++) {
salt[a] = (byte) ((byte) (Utilities.random.nextDouble() * 256) ^ res.random[a]);
}
BigInteger i_g_a = BigInteger.valueOf(MessagesStorage.getInstance(currentAccount).getSecretG());
i_g_a = i_g_a.modPow(new BigInteger(1, salt), new BigInteger(1, MessagesStorage.getInstance(currentAccount).getSecretPBytes()));
byte[] g_a = i_g_a.toByteArray();
if (g_a.length > 256) {
byte[] correctedAuth = new byte[256];
System.arraycopy(g_a, 1, correctedAuth, 0, 256);
g_a = correctedAuth;
}
TLRPC.TL_messages_requestEncryption req2 = new TLRPC.TL_messages_requestEncryption();
req2.g_a = g_a;
req2.user_id = MessagesController.getInstance(currentAccount).getInputUser(user);
req2.random_id = Utilities.random.nextInt();
ConnectionsManager.getInstance(currentAccount).sendRequest(req2, (response1, error1) -> {
if (error1 == null) {
AndroidUtilities.runOnUIThread(() -> {
startingSecretChat = false;
if (!((Activity) context).isFinishing()) {
try {
progressDialog.dismiss();
} catch (Exception e) {
FileLog.e(e);
}
}
TLRPC.EncryptedChat chat = (TLRPC.EncryptedChat) response1;
chat.user_id = chat.participant_id;
chat.seq_in = -2;
chat.seq_out = 1;
chat.a_or_b = salt;
MessagesController.getInstance(currentAccount).putEncryptedChat(chat, false);
TLRPC.TL_dialog dialog = new TLRPC.TL_dialog();
dialog.id = ((long) chat.id) << 32;
dialog.unread_count = 0;
dialog.top_message = 0;
dialog.last_message_date = ConnectionsManager.getInstance(currentAccount).getCurrentTime();
MessagesController.getInstance(currentAccount).dialogs_dict.put(dialog.id, dialog);
MessagesController.getInstance(currentAccount).dialogs.add(dialog);
MessagesController.getInstance(currentAccount).sortDialogs(null);
MessagesStorage.getInstance(currentAccount).putEncryptedChat(chat, user, dialog);
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.dialogsNeedReload);
NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.encryptedChatCreated, chat);
Utilities.stageQueue.postRunnable(() -> {
if (!delayedEncryptedChatUpdates.isEmpty()) {
MessagesController.getInstance(currentAccount).processUpdateArray(delayedEncryptedChatUpdates, null, null, false);
delayedEncryptedChatUpdates.clear();
}
});
});
} else {
delayedEncryptedChatUpdates.clear();
AndroidUtilities.runOnUIThread(() -> {
if (!((Activity) context).isFinishing()) {
startingSecretChat = false;
try {
progressDialog.dismiss();
} catch (Exception e) {
FileLog.e(e);
}
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setTitle(LocaleController.getString("AppName", R.string.AppName));
builder.setMessage(LocaleController.getString("CreateEncryptedChatError", R.string.CreateEncryptedChatError));
builder.setPositiveButton(LocaleController.getString("OK", R.string.OK), null);
builder.show().setCanceledOnTouchOutside(true);
}
});
}
}, ConnectionsManager.RequestFlagFailOnServerErrors);
} else {
delayedEncryptedChatUpdates.clear();
AndroidUtilities.runOnUIThread(() -> {
startingSecretChat = false;
if (!((Activity) context).isFinishing()) {
try {
progressDialog.dismiss();
} catch (Exception e) {
FileLog.e(e);
}
}
});
}
}, ConnectionsManager.RequestFlagFailOnServerErrors);
progressDialog.setOnCancelListener(dialog -> ConnectionsManager.getInstance(currentAccount).cancelRequest(reqId, true));
try {
progressDialog.show();
} catch (Exception e) {
//don't promt
}
}
}