private void send_client_DH_inner_data(long retry_id) {
byte[] b_data = new byte[256];
Common.random.nextBytes(b_data);
BigInteger b = new BigInteger(1, b_data);
BigInteger g_b = g.modPow(b, dh_prime);
Common.logError(
"g_b length: " + g_b.toByteArray().length + " -> " + Common.toBytes(g_b).length);
BigInteger akey = g_a.modPow(b, dh_prime);
Common.logError("auth_key: " + akey.toString());
setAuthKey(Common.toBytes(akey));
// gen data (client_DH_inner_data)
TL.Object data_obj = TL.newObject("client_DH_inner_data", cl_nonce, sv_nonce, retry_id, g_b);
byte[] data = data_obj.serialize();
byte[] hash = Common.getSHA1(data);
byte[] data_with_hash = new byte[(hash.length + data.length + 15) / 16 * 16];
System.arraycopy(hash, 0, data_with_hash, 0, hash.length);
System.arraycopy(data, 0, data_with_hash, hash.length, data.length);
// send set_client_DH_params
TL.Object req_obj =
TL.newObject("set_client_DH_params", cl_nonce, sv_nonce, aes.IGE(data_with_hash, true));
send(req_obj, false, false);
}
public void onReceive(ByteBuffer b) {
if (b.remaining() == 4) {
Common.logError("invalid packet:");
byte[] data = new byte[b.remaining()];
b.get(data);
Common.print_dump(data);
// retry( TLMessage.keyAt( TLMessage.size() - 1) );
return;
}
try {
if (b.getLong() == 0) { // auth_key_id
b.getLong(); // message_id
b.getInt(); // message length
process(TL.deserialize(b));
} else {
byte[] msg_key = new byte[16];
b.get(msg_key);
byte[] data = new byte[b.remaining()];
b.get(data);
synchronized (aes) {
aes.prepare(false, msg_key, auth_key);
data = aes.IGE(data, false);
}
ByteBuffer btmp = ByteBuffer.wrap(data);
btmp.order(ByteOrder.LITTLE_ENDIAN);
server_salt = btmp.getLong();
btmp.getLong(); // session_id
cur_message_id = btmp.getLong(); // message_id
cur_msg_seq = btmp.getInt(); // seq_no
// if (cur_msg_seq > seqno)
// seqno = cur_msg_seq + cur_msg_seq % 2;
int bsize = btmp.getInt();
if (bsize < 0 || bsize > 1024 * 1024) {
Common.print_dump(btmp.array());
Common.logError(new String(btmp.array()));
Common.logError("FFFUUUUUUUUUUU!!!");
}
b = BufferAlloc(bsize);
btmp.get(b.array());
b.getInt();
ack_message(cur_msg_seq, cur_message_id);
b.position(0);
process(TL.deserialize(b));
send_accept();
}
} catch (Exception e) {
e.printStackTrace();
}
}
/*
public byte[] GEN_nonce_hash(int id) {
byte[] nonce_data = Common.ASUM(Common.ASUM(new_nonce, new byte[]{(byte) id}), auth_key_aux_hash);
return Common.ASUB(Common.getSHA1(nonce_data), 4, 16);
}
*/
private void send_accept() {
if (msg_ack.size() == 0) return;
/*
Common.logInfo("send accept:");
for (int i = 0; i < msg_ack.size(); i++)
Common.logInfo(" - " + getMessageTime(msg_ack.get(i)) + " " + msg_ack.get(i));
*/
TL.Object msgs_ack = TL.newObject("msgs_ack", TL.newVector(msg_ack.toArray()));
send(msgs_ack, true, false);
msg_ack.clear();
}
public static void init() {
mtp.clear();
dcStates.clear();
// dcStates.add(TL.newObject("joim.dcState", 0, "95.142.192.65", 80, new byte[0], false,
// Common.random.nextLong(), 0L, 0));
// dcStates.add(TL.newObject("joim.dcState", 1, "173.240.5.253", 443, new byte[0], false,
// Common.random.nextLong(), 0L, 0));
dcStates.add(
TL.newObject(
"joim.dcState", 0, "173.240.5.1", 443, new byte[0], false, GEN_session_id(), 0L, 0));
dc_date = dc_this = upd_date = upd_pts = upd_seq = 0;
}
private void TL_Pong(TL.Object obj) {
if (obj.name.equals("ping"))
send(TL.newObject("pong", 0L, obj.getLong("ping_id")), true, false);
if (obj.name.equals("pong")) {
/*
if (!ready) {
send_queue();
ready = true;
}
*/
}
}
private void TL_Server_DH_Params(TL.Object obj) {
if (obj.name.equals("server_DH_params_ok")) {
aes.prepare(cl_nonce, sv_nonce, new_nonce);
byte[] answer = aes.IGE(obj.getBytes("encrypted_answer"), false);
ByteBuffer btmp = ByteBuffer.wrap(answer);
btmp.order(ByteOrder.LITTLE_ENDIAN);
btmp.position(20);
process(TL.deserialize(btmp));
}
if (obj.name.equals("server_DH_params_fail")) transport.disconnect();
}
private void TL_ResPQ(TL.Object obj) {
sv_nonce = obj.getBytes("server_nonce");
BigInteger pq = new BigInteger(1, obj.getBytes("pq"));
TL.Vector v_fp = obj.getVector("server_public_key_fingerprints");
fp = v_fp.getLong(0);
Common.logError("pq: " + pq.toString());
// prime factorization for pq
BigInteger q = Common.rho(pq);
BigInteger p = pq.divide(q);
if (p.compareTo(q) > 0) {
BigInteger t = p;
p = q;
q = t;
}
SecureRandom rnd = new SecureRandom();
new_nonce = new byte[32];
rnd.nextBytes(new_nonce);
// generate encrypted_data
TL.Object data_obj = TL.newObject("p_q_inner_data", pq, p, q, cl_nonce, sv_nonce, new_nonce);
byte[] data = data_obj.serialize();
byte[] hash = Common.getSHA1(data);
byte[] data_with_hash = new byte[255];
System.arraycopy(hash, 0, data_with_hash, 0, hash.length);
System.arraycopy(data, 0, data_with_hash, hash.length, data.length);
GEN_random_bytes(data_with_hash, data.length + hash.length, 255);
byte[] encrypted_data = Common.RSA(RSA_MODULUS, RSA_EXPONENT, data_with_hash);
// req_DH_params
TL.Object req_obj = TL.newObject("req_DH_params", cl_nonce, sv_nonce, p, q, fp, encrypted_data);
send(req_obj, false, false);
}
private void TL_Config(TL.Object obj) {
dc_date = obj.getInt("date");
MTProto.dc_this = obj.getInt("this_dc");
dcState.set("id", dc_this);
updateDcStates();
TL.Vector dc_options = obj.getVector("dc_options");
ArrayList<TL.Object> new_dcStates = new ArrayList<TL.Object>();
for (int i = 0; i < dc_options.count; i++) {
TL.Object dcObj = dc_options.getObject(i);
int id = dcObj.getInt("id");
TL.Object state =
TL.newObject(
"joim.dcState",
id,
dcObj.getString("ip_address"),
dcObj.getInt("port"),
new byte[0],
false,
GEN_session_id(),
0L,
0);
for (int j = 0; j < MTProto.dcStates.size(); j++) {
TL.Object item = MTProto.dcStates.get(j);
if (id == item.getInt("id") && state.getString("ip").equals(item.getString("ip"))) {
state.set("auth_key", item.getBytes("auth_key"));
state.set("bind", item.getBool("bind"));
state.set("session", item.getLong("session"));
state.set("server_salt", item.getLong("server_salt"));
state.set("seqno", item.getInt("seqno"));
if (state.getInt("port") == item.getInt("port")) dcState = state;
break;
}
}
new_dcStates.add(state);
}
dcStates = new_dcStates;
send_queue();
cb.onReady();
}
private void send_ping() {
send(TL.newObject("ping", Common.random.nextLong()), true, false);
}
public void auth() {
Common.logError("auth");
TL.Object req_pq = TL.newObject("req_pq", cl_nonce = GEN_random_bytes(16));
send(req_pq, false, false);
}
public void api_contacts_importContacts(ArrayList<TL.Object> contacts, boolean replace) {
api(null, null, "contacts.importContacts", TL.newVector(contacts.toArray()), replace);
}
// API
public void api(TL.OnResultRPC result, Object param, String method, Object... params) {
send(TL.newObject(method, params), true, true, result, param);
}
