2999 lines
106 KiB
C++
2999 lines
106 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#include "mtproto/connection.h"
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#include <openssl/bn.h>
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#include <openssl/err.h>
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#include <openssl/aes.h>
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#include <openssl/sha.h>
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#include <openssl/md5.h>
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#include <openssl/rand.h>
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#include "zlib.h"
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#include "lang.h"
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#include "base/openssl_help.h"
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#include "mtproto/rsa_public_key.h"
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#include "messenger.h"
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#include "mtproto/dc_options.h"
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#include "mtproto/connection_abstract.h"
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namespace MTP {
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namespace internal {
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namespace {
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constexpr auto kRecreateKeyId = AuthKey::KeyId(0xFFFFFFFFFFFFFFFFULL);
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constexpr auto kIntSize = static_cast<int>(sizeof(mtpPrime));
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constexpr auto kMaxModExpSize = 256;
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bool IsGoodModExpFirst(const openssl::BigNum &modexp, const openssl::BigNum &prime) {
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auto diff = prime - modexp;
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if (modexp.failed() || prime.failed() || diff.failed()) {
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return false;
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}
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constexpr auto kMinDiffBitsCount = 2048 - 64;
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if (diff.isNegative() || diff.bitsSize() < kMinDiffBitsCount || modexp.bitsSize() < kMinDiffBitsCount) {
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return false;
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}
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t_assert(modexp.bytesSize() <= kMaxModExpSize);
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return true;
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}
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bool IsPrimeAndGoodCheck(const openssl::BigNum &prime, int g) {
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constexpr auto kGoodPrimeBitsCount = 2048;
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if (prime.failed() || prime.isNegative() || prime.bitsSize() != kGoodPrimeBitsCount) {
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LOG(("MTP Error: Bad prime bits count %1, expected %2.").arg(prime.bitsSize()).arg(kGoodPrimeBitsCount));
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return false;
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}
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openssl::Context context;
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if (!prime.isPrime(context)) {
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LOG(("MTP Error: Bad prime."));
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return false;
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}
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switch (g) {
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case 2: {
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auto mod8 = prime.modWord(8);
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if (mod8 != 7) {
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LOG(("BigNum PT Error: bad g value: %1, mod8: %2").arg(g).arg(mod8));
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return false;
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}
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} break;
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case 3: {
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auto mod3 = prime.modWord(3);
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if (mod3 != 2) {
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LOG(("BigNum PT Error: bad g value: %1, mod3: %2").arg(g).arg(mod3));
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return false;
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}
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} break;
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case 4: break;
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case 5: {
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auto mod5 = prime.modWord(5);
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if (mod5 != 1 && mod5 != 4) {
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LOG(("BigNum PT Error: bad g value: %1, mod5: %2").arg(g).arg(mod5));
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return false;
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}
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} break;
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case 6: {
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auto mod24 = prime.modWord(24);
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if (mod24 != 19 && mod24 != 23) {
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LOG(("BigNum PT Error: bad g value: %1, mod24: %2").arg(g).arg(mod24));
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return false;
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}
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} break;
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case 7: {
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auto mod7 = prime.modWord(7);
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if (mod7 != 3 && mod7 != 5 && mod7 != 6) {
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LOG(("BigNum PT Error: bad g value: %1, mod7: %2").arg(g).arg(mod7));
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return false;
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}
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} break;
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default: {
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LOG(("BigNum PT Error: bad g value: %1").arg(g));
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return false;
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} break;
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}
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auto primeSubOneDivTwo = prime;
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primeSubOneDivTwo.setSubWord(1);
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primeSubOneDivTwo.setDivWord(2);
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if (!primeSubOneDivTwo.isPrime(context)) {
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LOG(("MTP Error: Bad (prime - 1) / 2."));
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return false;
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}
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return true;
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}
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bool IsPrimeAndGood(base::const_byte_span primeBytes, int g) {
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static constexpr unsigned char GoodPrime[] = {
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0xC7, 0x1C, 0xAE, 0xB9, 0xC6, 0xB1, 0xC9, 0x04, 0x8E, 0x6C, 0x52, 0x2F, 0x70, 0xF1, 0x3F, 0x73,
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0x98, 0x0D, 0x40, 0x23, 0x8E, 0x3E, 0x21, 0xC1, 0x49, 0x34, 0xD0, 0x37, 0x56, 0x3D, 0x93, 0x0F,
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0x48, 0x19, 0x8A, 0x0A, 0xA7, 0xC1, 0x40, 0x58, 0x22, 0x94, 0x93, 0xD2, 0x25, 0x30, 0xF4, 0xDB,
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0xFA, 0x33, 0x6F, 0x6E, 0x0A, 0xC9, 0x25, 0x13, 0x95, 0x43, 0xAE, 0xD4, 0x4C, 0xCE, 0x7C, 0x37,
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0x20, 0xFD, 0x51, 0xF6, 0x94, 0x58, 0x70, 0x5A, 0xC6, 0x8C, 0xD4, 0xFE, 0x6B, 0x6B, 0x13, 0xAB,
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0xDC, 0x97, 0x46, 0x51, 0x29, 0x69, 0x32, 0x84, 0x54, 0xF1, 0x8F, 0xAF, 0x8C, 0x59, 0x5F, 0x64,
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0x24, 0x77, 0xFE, 0x96, 0xBB, 0x2A, 0x94, 0x1D, 0x5B, 0xCD, 0x1D, 0x4A, 0xC8, 0xCC, 0x49, 0x88,
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0x07, 0x08, 0xFA, 0x9B, 0x37, 0x8E, 0x3C, 0x4F, 0x3A, 0x90, 0x60, 0xBE, 0xE6, 0x7C, 0xF9, 0xA4,
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0xA4, 0xA6, 0x95, 0x81, 0x10, 0x51, 0x90, 0x7E, 0x16, 0x27, 0x53, 0xB5, 0x6B, 0x0F, 0x6B, 0x41,
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0x0D, 0xBA, 0x74, 0xD8, 0xA8, 0x4B, 0x2A, 0x14, 0xB3, 0x14, 0x4E, 0x0E, 0xF1, 0x28, 0x47, 0x54,
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0xFD, 0x17, 0xED, 0x95, 0x0D, 0x59, 0x65, 0xB4, 0xB9, 0xDD, 0x46, 0x58, 0x2D, 0xB1, 0x17, 0x8D,
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0x16, 0x9C, 0x6B, 0xC4, 0x65, 0xB0, 0xD6, 0xFF, 0x9C, 0xA3, 0x92, 0x8F, 0xEF, 0x5B, 0x9A, 0xE4,
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0xE4, 0x18, 0xFC, 0x15, 0xE8, 0x3E, 0xBE, 0xA0, 0xF8, 0x7F, 0xA9, 0xFF, 0x5E, 0xED, 0x70, 0x05,
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0x0D, 0xED, 0x28, 0x49, 0xF4, 0x7B, 0xF9, 0x59, 0xD9, 0x56, 0x85, 0x0C, 0xE9, 0x29, 0x85, 0x1F,
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0x0D, 0x81, 0x15, 0xF6, 0x35, 0xB1, 0x05, 0xEE, 0x2E, 0x4E, 0x15, 0xD0, 0x4B, 0x24, 0x54, 0xBF,
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0x6F, 0x4F, 0xAD, 0xF0, 0x34, 0xB1, 0x04, 0x03, 0x11, 0x9C, 0xD8, 0xE3, 0xB9, 0x2F, 0xCC, 0x5B };
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if (!base::compare_bytes(gsl::as_bytes(gsl::make_span(GoodPrime)), primeBytes)) {
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if (g == 3 || g == 4 || g == 5 || g == 7) {
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return true;
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}
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}
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return IsPrimeAndGoodCheck(openssl::BigNum(primeBytes), g);
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}
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std::vector<gsl::byte> CreateAuthKey(base::const_byte_span firstBytes, base::const_byte_span randomBytes, base::const_byte_span primeBytes) {
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using openssl::BigNum;
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BigNum first(firstBytes);
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BigNum prime(primeBytes);
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if (!IsGoodModExpFirst(first, prime)) {
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LOG(("AuthKey Error: Bad first prime in CreateAuthKey()."));
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return std::vector<gsl::byte>();
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}
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return BigNum::ModExp(first, BigNum(randomBytes), prime).getBytes();
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}
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ModExpFirst CreateModExp(int g, base::const_byte_span primeBytes, base::const_byte_span randomSeed) {
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Expects(randomSeed.size() == ModExpFirst::kRandomPowerSize);
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using namespace openssl;
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BigNum prime(primeBytes);
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ModExpFirst result;
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constexpr auto kMaxModExpFirstTries = 5;
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for (auto tries = 0; tries != kMaxModExpFirstTries; ++tries) {
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FillRandom(result.randomPower);
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for (auto i = 0; i != ModExpFirst::kRandomPowerSize; ++i) {
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result.randomPower[i] ^= randomSeed[i];
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}
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auto modexp = BigNum::ModExp(BigNum(g), BigNum(result.randomPower), prime);
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if (IsGoodModExpFirst(modexp, prime)) {
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result.modexp = modexp.getBytes();
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break;
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}
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}
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return result;
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}
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void wrapInvokeAfter(mtpRequest &to, const mtpRequest &from, const mtpRequestMap &haveSent, int32 skipBeforeRequest = 0) {
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mtpMsgId afterId(*(mtpMsgId*)(from->after->data() + 4));
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mtpRequestMap::const_iterator i = afterId ? haveSent.constFind(afterId) : haveSent.cend();
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int32 size = to->size(), lenInInts = (from.innerLength() >> 2), headlen = 4, fulllen = headlen + lenInInts;
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if (i == haveSent.constEnd()) { // no invoke after or such msg was not sent or was completed recently
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to->resize(size + fulllen + skipBeforeRequest);
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if (skipBeforeRequest) {
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memcpy(to->data() + size, from->constData() + 4, headlen * sizeof(mtpPrime));
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memcpy(to->data() + size + headlen + skipBeforeRequest, from->constData() + 4 + headlen, lenInInts * sizeof(mtpPrime));
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} else {
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memcpy(to->data() + size, from->constData() + 4, fulllen * sizeof(mtpPrime));
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}
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} else {
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to->resize(size + fulllen + skipBeforeRequest + 3);
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memcpy(to->data() + size, from->constData() + 4, headlen * sizeof(mtpPrime));
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(*to)[size + 3] += 3 * sizeof(mtpPrime);
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*((mtpTypeId*)&((*to)[size + headlen + skipBeforeRequest])) = mtpc_invokeAfterMsg;
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memcpy(to->data() + size + headlen + skipBeforeRequest + 1, &afterId, 2 * sizeof(mtpPrime));
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memcpy(to->data() + size + headlen + skipBeforeRequest + 3, from->constData() + 4 + headlen, lenInInts * sizeof(mtpPrime));
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if (size + 3 != 7) (*to)[7] += 3 * sizeof(mtpPrime);
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}
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}
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bool parsePQ(const QByteArray &pqStr, QByteArray &pStr, QByteArray &qStr) {
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if (pqStr.length() > 8) return false; // more than 64 bit pq
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uint64 pq = 0, p, q;
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const uchar *pqChars = (const uchar*)pqStr.constData();
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for (uint32 i = 0, l = pqStr.length(); i < l; ++i) {
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pq <<= 8;
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pq |= (uint64)pqChars[i];
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}
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uint64 pqSqrt = (uint64)sqrtl((long double)pq), ySqr, y;
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while (pqSqrt * pqSqrt > pq) --pqSqrt;
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while (pqSqrt * pqSqrt < pq) ++pqSqrt;
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for (ySqr = pqSqrt * pqSqrt - pq; ; ++pqSqrt, ySqr = pqSqrt * pqSqrt - pq) {
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y = (uint64)sqrtl((long double)ySqr);
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while (y * y > ySqr) --y;
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while (y * y < ySqr) ++y;
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if (!ySqr || y + pqSqrt >= pq) return false;
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if (y * y == ySqr) {
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p = pqSqrt + y;
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q = (pqSqrt > y) ? (pqSqrt - y) : (y - pqSqrt);
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break;
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}
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}
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if (p > q) std::swap(p, q);
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pStr.resize(4);
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uchar *pChars = (uchar*)pStr.data();
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for (uint32 i = 0; i < 4; ++i) {
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*(pChars + 3 - i) = (uchar)(p & 0xFF);
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p >>= 8;
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}
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qStr.resize(4);
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uchar *qChars = (uchar*)qStr.data();
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for (uint32 i = 0; i < 4; ++i) {
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*(qChars + 3 - i) = (uchar)(q & 0xFF);
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q >>= 8;
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}
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return true;
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}
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} // namespace
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Connection::Connection(Instance *instance) : _instance(instance) {
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}
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void Connection::start(SessionData *sessionData, ShiftedDcId shiftedDcId) {
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Expects(thread == nullptr && data == nullptr);
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thread = std::make_unique<Thread>();
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auto newData = std::make_unique<ConnectionPrivate>(_instance, thread.get(), this, sessionData, shiftedDcId);
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// will be deleted in the thread::finished signal
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data = newData.release();
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thread->start();
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}
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void Connection::kill() {
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Expects(data != nullptr && thread != nullptr);
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data->stop();
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data = nullptr;
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thread->quit();
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}
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void Connection::waitTillFinish() {
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Expects(data == nullptr && thread != nullptr);
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DEBUG_LOG(("Waiting for connectionThread to finish"));
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thread->wait();
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thread.reset();
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}
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int32 Connection::state() const {
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Expects(data != nullptr && thread != nullptr);
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return data->getState();
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}
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QString Connection::transport() const {
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Expects(data != nullptr && thread != nullptr);
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return data->transport();
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}
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Connection::~Connection() {
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Expects(data == nullptr);
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if (thread) {
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waitTillFinish();
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}
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}
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void ConnectionPrivate::createConn(bool createIPv4, bool createIPv6) {
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destroyConn();
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if (createIPv4) {
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QWriteLocker lock(&stateConnMutex);
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_conn4 = AbstractConnection::create(thread());
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connect(_conn4, SIGNAL(error(qint32)), this, SLOT(onError4(qint32)));
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connect(_conn4, SIGNAL(receivedSome()), this, SLOT(onReceivedSome()));
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}
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if (createIPv6) {
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QWriteLocker lock(&stateConnMutex);
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_conn6 = AbstractConnection::create(thread());
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connect(_conn6, SIGNAL(error(qint32)), this, SLOT(onError6(qint32)));
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connect(_conn6, SIGNAL(receivedSome()), this, SLOT(onReceivedSome()));
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}
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firstSentAt = 0;
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if (oldConnection) {
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oldConnection = false;
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DEBUG_LOG(("This connection marked as not old!"));
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}
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oldConnectionTimer.start(MTPConnectionOldTimeout);
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}
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void ConnectionPrivate::destroyConn(AbstractConnection **conn) {
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if (conn) {
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AbstractConnection *toDisconnect = nullptr;
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{
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QWriteLocker lock(&stateConnMutex);
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if (*conn) {
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toDisconnect = *conn;
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disconnect(*conn, SIGNAL(connected()), nullptr, nullptr);
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disconnect(*conn, SIGNAL(disconnected()), nullptr, nullptr);
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disconnect(*conn, SIGNAL(error(qint32)), nullptr, nullptr);
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disconnect(*conn, SIGNAL(receivedData()), nullptr, nullptr);
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disconnect(*conn, SIGNAL(receivedSome()), nullptr, nullptr);
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*conn = nullptr;
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}
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}
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if (toDisconnect) {
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toDisconnect->disconnectFromServer();
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toDisconnect->deleteLater();
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}
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} else {
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destroyConn(&_conn4);
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destroyConn(&_conn6);
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_conn = nullptr;
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}
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}
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ConnectionPrivate::ConnectionPrivate(Instance *instance, QThread *thread, Connection *owner, SessionData *data, ShiftedDcId shiftedDcId) : QObject()
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, _instance(instance)
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, _state(DisconnectedState)
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, _shiftedDcId(shiftedDcId)
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, _owner(owner)
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, _waitForReceived(MTPMinReceiveDelay)
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, _waitForConnected(MTPMinConnectDelay)
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//, sessionDataMutex(QReadWriteLock::Recursive)
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, sessionData(data) {
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oldConnectionTimer.moveToThread(thread);
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_waitForConnectedTimer.moveToThread(thread);
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_waitForReceivedTimer.moveToThread(thread);
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_waitForIPv4Timer.moveToThread(thread);
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_pingSender.moveToThread(thread);
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retryTimer.moveToThread(thread);
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moveToThread(thread);
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Expects(_shiftedDcId != 0);
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connect(thread, &QThread::started, this, [this] { connectToServer(); });
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connect(thread, &QThread::finished, this, [this] { finishAndDestroy(); });
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connect(this, SIGNAL(finished(internal::Connection*)), _instance, SLOT(connectionFinished(internal::Connection*)), Qt::QueuedConnection);
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connect(&retryTimer, SIGNAL(timeout()), this, SLOT(retryByTimer()));
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connect(&_waitForConnectedTimer, SIGNAL(timeout()), this, SLOT(onWaitConnectedFailed()));
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connect(&_waitForReceivedTimer, SIGNAL(timeout()), this, SLOT(onWaitReceivedFailed()));
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connect(&_waitForIPv4Timer, SIGNAL(timeout()), this, SLOT(onWaitIPv4Failed()));
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connect(&oldConnectionTimer, SIGNAL(timeout()), this, SLOT(onOldConnection()));
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connect(&_pingSender, SIGNAL(timeout()), this, SLOT(onPingSender()));
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connect(sessionData->owner(), SIGNAL(authKeyCreated()), this, SLOT(updateAuthKey()), Qt::QueuedConnection);
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connect(sessionData->owner(), SIGNAL(needToRestart()), this, SLOT(restartNow()), Qt::QueuedConnection);
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connect(this, SIGNAL(needToReceive()), sessionData->owner(), SLOT(tryToReceive()), Qt::QueuedConnection);
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connect(this, SIGNAL(stateChanged(qint32)), sessionData->owner(), SLOT(onConnectionStateChange(qint32)), Qt::QueuedConnection);
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connect(sessionData->owner(), SIGNAL(needToSend()), this, SLOT(tryToSend()), Qt::QueuedConnection);
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connect(sessionData->owner(), SIGNAL(needToPing()), this, SLOT(onPingSendForce()), Qt::QueuedConnection);
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connect(this, SIGNAL(sessionResetDone()), sessionData->owner(), SLOT(onResetDone()), Qt::QueuedConnection);
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static bool _registered = false;
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if (!_registered) {
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_registered = true;
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qRegisterMetaType<QVector<quint64> >("QVector<quint64>");
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}
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connect(this, SIGNAL(needToSendAsync()), sessionData->owner(), SLOT(needToResumeAndSend()), Qt::QueuedConnection);
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connect(this, SIGNAL(sendAnythingAsync(qint64)), sessionData->owner(), SLOT(sendAnything(qint64)), Qt::QueuedConnection);
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connect(this, SIGNAL(sendHttpWaitAsync()), sessionData->owner(), SLOT(sendAnything()), Qt::QueuedConnection);
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connect(this, SIGNAL(sendPongAsync(quint64,quint64)), sessionData->owner(), SLOT(sendPong(quint64,quint64)), Qt::QueuedConnection);
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connect(this, SIGNAL(sendMsgsStateInfoAsync(quint64, QByteArray)), sessionData->owner(), SLOT(sendMsgsStateInfo(quint64,QByteArray)), Qt::QueuedConnection);
|
|
connect(this, SIGNAL(resendAsync(quint64,qint64,bool,bool)), sessionData->owner(), SLOT(resend(quint64,qint64,bool,bool)), Qt::QueuedConnection);
|
|
connect(this, SIGNAL(resendManyAsync(QVector<quint64>,qint64,bool,bool)), sessionData->owner(), SLOT(resendMany(QVector<quint64>,qint64,bool,bool)), Qt::QueuedConnection);
|
|
connect(this, SIGNAL(resendAllAsync()), sessionData->owner(), SLOT(resendAll()));
|
|
}
|
|
|
|
void ConnectionPrivate::onConfigLoaded() {
|
|
connectToServer(true);
|
|
}
|
|
|
|
void ConnectionPrivate::onCDNConfigLoaded() {
|
|
restart();
|
|
}
|
|
|
|
int32 ConnectionPrivate::getShiftedDcId() const {
|
|
return _shiftedDcId;
|
|
}
|
|
|
|
int32 ConnectionPrivate::getState() const {
|
|
QReadLocker lock(&stateConnMutex);
|
|
int32 result = _state;
|
|
if (_state < 0) {
|
|
if (retryTimer.isActive()) {
|
|
result = int32(getms(true) - retryWillFinish);
|
|
if (result >= 0) {
|
|
result = -1;
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
QString ConnectionPrivate::transport() const {
|
|
QReadLocker lock(&stateConnMutex);
|
|
if ((!_conn4 && !_conn6) || (_conn4 && _conn6) || (_state < 0)) {
|
|
return QString();
|
|
}
|
|
QString result = (_conn4 ? _conn4 : _conn6)->transport();
|
|
if (!result.isEmpty() && Global::TryIPv6()) result += (_conn4 ? "/IPv4" : "/IPv6");
|
|
return result;
|
|
}
|
|
|
|
bool ConnectionPrivate::setState(int32 state, int32 ifState) {
|
|
if (ifState != Connection::UpdateAlways) {
|
|
QReadLocker lock(&stateConnMutex);
|
|
if (_state != ifState) return false;
|
|
}
|
|
QWriteLocker lock(&stateConnMutex);
|
|
if (_state == state) return false;
|
|
_state = state;
|
|
if (state < 0) {
|
|
retryTimeout = -state;
|
|
retryTimer.start(retryTimeout);
|
|
retryWillFinish = getms(true) + retryTimeout;
|
|
}
|
|
emit stateChanged(state);
|
|
return true;
|
|
}
|
|
|
|
void ConnectionPrivate::resetSession() { // recreate all msg_id and msg_seqno
|
|
_needSessionReset = false;
|
|
|
|
QWriteLocker locker1(sessionData->haveSentMutex());
|
|
QWriteLocker locker2(sessionData->toResendMutex());
|
|
QWriteLocker locker3(sessionData->toSendMutex());
|
|
QWriteLocker locker4(sessionData->wereAckedMutex());
|
|
mtpRequestMap &haveSent(sessionData->haveSentMap());
|
|
mtpRequestIdsMap &toResend(sessionData->toResendMap());
|
|
mtpPreRequestMap &toSend(sessionData->toSendMap());
|
|
mtpRequestIdsMap &wereAcked(sessionData->wereAckedMap());
|
|
|
|
mtpMsgId newId = msgid();
|
|
mtpRequestMap setSeqNumbers;
|
|
typedef QMap<mtpMsgId, mtpMsgId> Replaces;
|
|
Replaces replaces;
|
|
for (mtpRequestMap::const_iterator i = haveSent.cbegin(), e = haveSent.cend(); i != e; ++i) {
|
|
if (!mtpRequestData::isSentContainer(i.value())) {
|
|
if (!*(mtpMsgId*)(i.value()->constData() + 4)) continue;
|
|
|
|
mtpMsgId id = i.key();
|
|
if (id > newId) {
|
|
while (true) {
|
|
if (toResend.constFind(newId) == toResend.cend() && wereAcked.constFind(newId) == wereAcked.cend() && haveSent.constFind(newId) == haveSent.cend()) {
|
|
break;
|
|
}
|
|
mtpMsgId m = msgid();
|
|
if (m <= newId) break; // wtf
|
|
|
|
newId = m;
|
|
}
|
|
|
|
MTP_LOG(_shiftedDcId, ("Replacing msgId %1 to %2!").arg(id).arg(newId));
|
|
replaces.insert(id, newId);
|
|
id = newId;
|
|
*(mtpMsgId*)(i.value()->data() + 4) = id;
|
|
}
|
|
setSeqNumbers.insert(id, i.value());
|
|
}
|
|
}
|
|
for (mtpRequestIdsMap::const_iterator i = toResend.cbegin(), e = toResend.cend(); i != e; ++i) { // collect all non-container requests
|
|
mtpPreRequestMap::const_iterator j = toSend.constFind(i.value());
|
|
if (j == toSend.cend()) continue;
|
|
|
|
if (!mtpRequestData::isSentContainer(j.value())) {
|
|
if (!*(mtpMsgId*)(j.value()->constData() + 4)) continue;
|
|
|
|
mtpMsgId id = i.key();
|
|
if (id > newId) {
|
|
while (true) {
|
|
if (toResend.constFind(newId) == toResend.cend() && wereAcked.constFind(newId) == wereAcked.cend() && haveSent.constFind(newId) == haveSent.cend()) {
|
|
break;
|
|
}
|
|
mtpMsgId m = msgid();
|
|
if (m <= newId) break; // wtf
|
|
|
|
newId = m;
|
|
}
|
|
|
|
MTP_LOG(_shiftedDcId, ("Replacing msgId %1 to %2!").arg(id).arg(newId));
|
|
replaces.insert(id, newId);
|
|
id = newId;
|
|
*(mtpMsgId*)(j.value()->data() + 4) = id;
|
|
}
|
|
setSeqNumbers.insert(id, j.value());
|
|
}
|
|
}
|
|
|
|
uint64 session = rand_value<uint64>();
|
|
DEBUG_LOG(("MTP Info: creating new session after bad_msg_notification, setting random server_session %1").arg(session));
|
|
sessionData->setSession(session);
|
|
|
|
for (mtpRequestMap::const_iterator i = setSeqNumbers.cbegin(), e = setSeqNumbers.cend(); i != e; ++i) { // generate new seq_numbers
|
|
bool wasNeedAck = (*(i.value()->data() + 6) & 1);
|
|
*(i.value()->data() + 6) = sessionData->nextRequestSeqNumber(wasNeedAck);
|
|
}
|
|
if (!replaces.isEmpty()) {
|
|
for (Replaces::const_iterator i = replaces.cbegin(), e = replaces.cend(); i != e; ++i) { // replace msgIds keys in all data structs
|
|
mtpRequestMap::iterator j = haveSent.find(i.key());
|
|
if (j != haveSent.cend()) {
|
|
mtpRequest req = j.value();
|
|
haveSent.erase(j);
|
|
haveSent.insert(i.value(), req);
|
|
}
|
|
mtpRequestIdsMap::iterator k = toResend.find(i.key());
|
|
if (k != toResend.cend()) {
|
|
mtpRequestId req = k.value();
|
|
toResend.erase(k);
|
|
toResend.insert(i.value(), req);
|
|
}
|
|
k = wereAcked.find(i.key());
|
|
if (k != wereAcked.cend()) {
|
|
mtpRequestId req = k.value();
|
|
wereAcked.erase(k);
|
|
wereAcked.insert(i.value(), req);
|
|
}
|
|
}
|
|
for (mtpRequestMap::const_iterator i = haveSent.cbegin(), e = haveSent.cend(); i != e; ++i) { // replace msgIds in saved containers
|
|
if (mtpRequestData::isSentContainer(i.value())) {
|
|
mtpMsgId *ids = (mtpMsgId *)(i.value()->data() + 8);
|
|
for (uint32 j = 0, l = (i.value()->size() - 8) >> 1; j < l; ++j) {
|
|
Replaces::const_iterator k = replaces.constFind(ids[j]);
|
|
if (k != replaces.cend()) {
|
|
ids[j] = k.value();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ackRequestData.clear();
|
|
resendRequestData.clear();
|
|
{
|
|
QWriteLocker locker5(sessionData->stateRequestMutex());
|
|
sessionData->stateRequestMap().clear();
|
|
}
|
|
|
|
emit sessionResetDone();
|
|
}
|
|
|
|
mtpMsgId ConnectionPrivate::prepareToSend(mtpRequest &request, mtpMsgId currentLastId) {
|
|
if (request->size() < 9) return 0;
|
|
mtpMsgId msgId = *(mtpMsgId*)(request->constData() + 4);
|
|
if (msgId) { // resending this request
|
|
QWriteLocker locker(sessionData->toResendMutex());
|
|
mtpRequestIdsMap &toResend(sessionData->toResendMap());
|
|
mtpRequestIdsMap::iterator i = toResend.find(msgId);
|
|
if (i != toResend.cend()) {
|
|
toResend.erase(i);
|
|
}
|
|
} else {
|
|
msgId = *(mtpMsgId*)(request->data() + 4) = currentLastId;
|
|
*(request->data() + 6) = sessionData->nextRequestSeqNumber(mtpRequestData::needAck(request));
|
|
}
|
|
return msgId;
|
|
}
|
|
|
|
mtpMsgId ConnectionPrivate::replaceMsgId(mtpRequest &request, mtpMsgId newId) {
|
|
if (request->size() < 9) return 0;
|
|
|
|
mtpMsgId oldMsgId = *(mtpMsgId*)(request->constData() + 4);
|
|
if (oldMsgId != newId) {
|
|
if (oldMsgId) {
|
|
QWriteLocker locker(sessionData->toResendMutex());
|
|
// haveSentMutex() and wereAckedMutex() were locked in tryToSend()
|
|
|
|
mtpRequestIdsMap &toResend(sessionData->toResendMap());
|
|
mtpRequestIdsMap &wereAcked(sessionData->wereAckedMap());
|
|
mtpRequestMap &haveSent(sessionData->haveSentMap());
|
|
|
|
while (true) {
|
|
if (toResend.constFind(newId) == toResend.cend() && wereAcked.constFind(newId) == wereAcked.cend() && haveSent.constFind(newId) == haveSent.cend()) {
|
|
break;
|
|
}
|
|
mtpMsgId m = msgid();
|
|
if (m <= newId) break; // wtf
|
|
|
|
newId = m;
|
|
}
|
|
|
|
mtpRequestIdsMap::iterator i = toResend.find(oldMsgId);
|
|
if (i != toResend.cend()) {
|
|
mtpRequestId req = i.value();
|
|
toResend.erase(i);
|
|
toResend.insert(newId, req);
|
|
}
|
|
|
|
mtpRequestIdsMap::iterator j = wereAcked.find(oldMsgId);
|
|
if (j != wereAcked.cend()) {
|
|
mtpRequestId req = j.value();
|
|
wereAcked.erase(j);
|
|
wereAcked.insert(newId, req);
|
|
}
|
|
|
|
mtpRequestMap::iterator k = haveSent.find(oldMsgId);
|
|
if (k != haveSent.cend()) {
|
|
mtpRequest req = k.value();
|
|
haveSent.erase(k);
|
|
haveSent.insert(newId, req);
|
|
}
|
|
|
|
for (k = haveSent.begin(); k != haveSent.cend(); ++k) {
|
|
mtpRequest req(k.value());
|
|
if (mtpRequestData::isSentContainer(req)) {
|
|
mtpMsgId *ids = (mtpMsgId *)(req->data() + 8);
|
|
for (uint32 i = 0, l = (req->size() - 8) >> 1; i < l; ++i) {
|
|
if (ids[i] == oldMsgId) {
|
|
ids[i] = newId;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
*(request->data() + 6) = sessionData->nextRequestSeqNumber(mtpRequestData::needAck(request));
|
|
}
|
|
*(mtpMsgId*)(request->data() + 4) = newId;
|
|
}
|
|
return newId;
|
|
}
|
|
|
|
mtpMsgId ConnectionPrivate::placeToContainer(mtpRequest &toSendRequest, mtpMsgId &bigMsgId, mtpMsgId *&haveSentArr, mtpRequest &req) {
|
|
mtpMsgId msgId = prepareToSend(req, bigMsgId);
|
|
if (msgId > bigMsgId) msgId = replaceMsgId(req, bigMsgId);
|
|
if (msgId >= bigMsgId) bigMsgId = msgid();
|
|
*(haveSentArr++) = msgId;
|
|
|
|
uint32 from = toSendRequest->size(), len = mtpRequestData::messageSize(req);
|
|
toSendRequest->resize(from + len);
|
|
memcpy(toSendRequest->data() + from, req->constData() + 4, len * sizeof(mtpPrime));
|
|
|
|
return msgId;
|
|
}
|
|
|
|
void ConnectionPrivate::tryToSend() {
|
|
QReadLocker lockFinished(&sessionDataMutex);
|
|
if (!sessionData || !_conn) {
|
|
return;
|
|
}
|
|
|
|
bool needsLayer = !sessionData->layerWasInited();
|
|
int32 state = getState();
|
|
bool prependOnly = (state != ConnectedState);
|
|
mtpRequest pingRequest;
|
|
if (_shiftedDcId == bareDcId(_shiftedDcId)) { // main session
|
|
if (!prependOnly && !_pingIdToSend && !_pingId && _pingSendAt <= getms(true)) {
|
|
_pingIdToSend = rand_value<mtpPingId>();
|
|
}
|
|
}
|
|
if (_pingIdToSend) {
|
|
if (prependOnly || _shiftedDcId != bareDcId(_shiftedDcId)) {
|
|
MTPPing ping(MTPping(MTP_long(_pingIdToSend)));
|
|
uint32 pingSize = ping.innerLength() >> 2; // copy from Session::send
|
|
pingRequest = mtpRequestData::prepare(pingSize);
|
|
ping.write(*pingRequest);
|
|
DEBUG_LOG(("MTP Info: sending ping, ping_id: %1").arg(_pingIdToSend));
|
|
} else {
|
|
MTPPing_delay_disconnect ping(MTP_long(_pingIdToSend), MTP_int(MTPPingDelayDisconnect));
|
|
uint32 pingSize = ping.innerLength() >> 2; // copy from Session::send
|
|
pingRequest = mtpRequestData::prepare(pingSize);
|
|
ping.write(*pingRequest);
|
|
DEBUG_LOG(("MTP Info: sending ping_delay_disconnect, ping_id: %1").arg(_pingIdToSend));
|
|
}
|
|
|
|
pingRequest->msDate = getms(true); // > 0 - can send without container
|
|
_pingSendAt = pingRequest->msDate + (MTPPingSendAfterAuto * 1000LL);
|
|
pingRequest->requestId = 0; // dont add to haveSent / wereAcked maps
|
|
|
|
if (_shiftedDcId == bareDcId(_shiftedDcId) && !prependOnly) { // main session
|
|
_pingSender.start(MTPPingSendAfter * 1000);
|
|
}
|
|
|
|
_pingId = _pingIdToSend;
|
|
_pingIdToSend = 0;
|
|
} else {
|
|
if (prependOnly) {
|
|
DEBUG_LOG(("MTP Info: dc %1 not sending, waiting for Connected state, state: %2").arg(_shiftedDcId).arg(state));
|
|
return; // just do nothing, if is not connected yet
|
|
} else {
|
|
DEBUG_LOG(("MTP Info: dc %1 trying to send after ping, state: %2").arg(_shiftedDcId).arg(state));
|
|
}
|
|
}
|
|
|
|
mtpRequest ackRequest, resendRequest, stateRequest, httpWaitRequest;
|
|
if (!prependOnly && !ackRequestData.isEmpty()) {
|
|
MTPMsgsAck ack(MTP_msgs_ack(MTP_vector<MTPlong>(ackRequestData)));
|
|
|
|
ackRequest = mtpRequestData::prepare(ack.innerLength() >> 2);
|
|
ack.write(*ackRequest);
|
|
|
|
ackRequest->msDate = getms(true); // > 0 - can send without container
|
|
ackRequest->requestId = 0; // dont add to haveSent / wereAcked maps
|
|
|
|
ackRequestData.clear();
|
|
}
|
|
if (!prependOnly && !resendRequestData.isEmpty()) {
|
|
MTPMsgResendReq resend(MTP_msg_resend_req(MTP_vector<MTPlong>(resendRequestData)));
|
|
|
|
resendRequest = mtpRequestData::prepare(resend.innerLength() >> 2);
|
|
resend.write(*resendRequest);
|
|
|
|
resendRequest->msDate = getms(true); // > 0 - can send without container
|
|
resendRequest->requestId = 0; // dont add to haveSent / wereAcked maps
|
|
|
|
resendRequestData.clear();
|
|
}
|
|
if (!prependOnly) {
|
|
QVector<MTPlong> stateReq;
|
|
{
|
|
QWriteLocker locker(sessionData->stateRequestMutex());
|
|
mtpMsgIdsSet &ids(sessionData->stateRequestMap());
|
|
if (!ids.isEmpty()) {
|
|
stateReq.reserve(ids.size());
|
|
for (mtpMsgIdsSet::const_iterator i = ids.cbegin(), e = ids.cend(); i != e; ++i) {
|
|
stateReq.push_back(MTP_long(i.key()));
|
|
}
|
|
}
|
|
ids.clear();
|
|
}
|
|
if (!stateReq.isEmpty()) {
|
|
MTPMsgsStateReq req(MTP_msgs_state_req(MTP_vector<MTPlong>(stateReq)));
|
|
|
|
stateRequest = mtpRequestData::prepare(req.innerLength() >> 2);
|
|
req.write(*stateRequest);
|
|
|
|
stateRequest->msDate = getms(true); // > 0 - can send without container
|
|
stateRequest->requestId = reqid();// add to haveSent / wereAcked maps, but don't add to requestMap
|
|
}
|
|
if (_conn->usingHttpWait()) {
|
|
MTPHttpWait req(MTP_http_wait(MTP_int(100), MTP_int(30), MTP_int(25000)));
|
|
|
|
httpWaitRequest = mtpRequestData::prepare(req.innerLength() >> 2);
|
|
req.write(*httpWaitRequest);
|
|
|
|
httpWaitRequest->msDate = getms(true); // > 0 - can send without container
|
|
httpWaitRequest->requestId = 0; // dont add to haveSent / wereAcked maps
|
|
}
|
|
}
|
|
|
|
MTPInitConnection<mtpRequest> initWrapper;
|
|
int32 initSize = 0, initSizeInInts = 0;
|
|
if (needsLayer) {
|
|
auto langCode = (cLang() == languageTest || cLang() == languageDefault) ? Sandbox::LangSystemISO() : str_const_toString(LanguageCodes[cLang()]);
|
|
auto deviceModel = (_dcType == DcType::Cdn) ? "n/a" : cApiDeviceModel();
|
|
auto systemVersion = (_dcType == DcType::Cdn) ? "n/a" : cApiSystemVersion();
|
|
initWrapper = MTPInitConnection<mtpRequest>(MTP_int(ApiId), MTP_string(deviceModel), MTP_string(systemVersion), MTP_string(cApiAppVersion()), MTP_string(langCode), mtpRequest());
|
|
initSizeInInts = (initWrapper.innerLength() >> 2) + 2;
|
|
initSize = initSizeInInts * sizeof(mtpPrime);
|
|
}
|
|
|
|
bool needAnyResponse = false;
|
|
mtpRequest toSendRequest;
|
|
{
|
|
QWriteLocker locker1(sessionData->toSendMutex());
|
|
|
|
mtpPreRequestMap toSendDummy, &toSend(prependOnly ? toSendDummy : sessionData->toSendMap());
|
|
if (prependOnly) locker1.unlock();
|
|
|
|
uint32 toSendCount = toSend.size();
|
|
if (pingRequest) ++toSendCount;
|
|
if (ackRequest) ++toSendCount;
|
|
if (resendRequest) ++toSendCount;
|
|
if (stateRequest) ++toSendCount;
|
|
if (httpWaitRequest) ++toSendCount;
|
|
|
|
if (!toSendCount) return; // nothing to send
|
|
|
|
mtpRequest first = pingRequest ? pingRequest : (ackRequest ? ackRequest : (resendRequest ? resendRequest : (stateRequest ? stateRequest : (httpWaitRequest ? httpWaitRequest : toSend.cbegin().value()))));
|
|
if (toSendCount == 1 && first->msDate > 0) { // if can send without container
|
|
toSendRequest = first;
|
|
if (!prependOnly) {
|
|
toSend.clear();
|
|
locker1.unlock();
|
|
}
|
|
|
|
mtpMsgId msgId = prepareToSend(toSendRequest, msgid());
|
|
if (pingRequest) {
|
|
_pingMsgId = msgId;
|
|
needAnyResponse = true;
|
|
} else if (resendRequest || stateRequest) {
|
|
needAnyResponse = true;
|
|
}
|
|
|
|
if (toSendRequest->requestId) {
|
|
if (mtpRequestData::needAck(toSendRequest)) {
|
|
toSendRequest->msDate = mtpRequestData::isStateRequest(toSendRequest) ? 0 : getms(true);
|
|
|
|
QWriteLocker locker2(sessionData->haveSentMutex());
|
|
mtpRequestMap &haveSent(sessionData->haveSentMap());
|
|
haveSent.insert(msgId, toSendRequest);
|
|
|
|
if (needsLayer && !toSendRequest->needsLayer) needsLayer = false;
|
|
if (toSendRequest->after) {
|
|
int32 toSendSize = toSendRequest.innerLength() >> 2;
|
|
mtpRequest wrappedRequest(mtpRequestData::prepare(toSendSize, toSendSize + 3)); // cons + msg_id
|
|
wrappedRequest->resize(4);
|
|
memcpy(wrappedRequest->data(), toSendRequest->constData(), 4 * sizeof(mtpPrime));
|
|
wrapInvokeAfter(wrappedRequest, toSendRequest, haveSent);
|
|
toSendRequest = wrappedRequest;
|
|
}
|
|
if (needsLayer) {
|
|
int32 noWrapSize = (toSendRequest.innerLength() >> 2), toSendSize = noWrapSize + initSizeInInts;
|
|
mtpRequest wrappedRequest(mtpRequestData::prepare(toSendSize));
|
|
memcpy(wrappedRequest->data(), toSendRequest->constData(), 7 * sizeof(mtpPrime)); // all except length
|
|
wrappedRequest->push_back(mtpc_invokeWithLayer);
|
|
wrappedRequest->push_back(MTP::internal::CurrentLayer);
|
|
initWrapper.write(*wrappedRequest);
|
|
wrappedRequest->resize(wrappedRequest->size() + noWrapSize);
|
|
memcpy(wrappedRequest->data() + wrappedRequest->size() - noWrapSize, toSendRequest->constData() + 8, noWrapSize * sizeof(mtpPrime));
|
|
toSendRequest = wrappedRequest;
|
|
}
|
|
|
|
needAnyResponse = true;
|
|
} else {
|
|
QWriteLocker locker3(sessionData->wereAckedMutex());
|
|
sessionData->wereAckedMap().insert(msgId, toSendRequest->requestId);
|
|
}
|
|
}
|
|
} else { // send in container
|
|
bool willNeedInit = false;
|
|
uint32 containerSize = 1 + 1, idsWrapSize = (toSendCount << 1); // cons + vector size, idsWrapSize - size of "request-like" wrap for msgId vector
|
|
if (pingRequest) containerSize += mtpRequestData::messageSize(pingRequest);
|
|
if (ackRequest) containerSize += mtpRequestData::messageSize(ackRequest);
|
|
if (resendRequest) containerSize += mtpRequestData::messageSize(resendRequest);
|
|
if (stateRequest) containerSize += mtpRequestData::messageSize(stateRequest);
|
|
if (httpWaitRequest) containerSize += mtpRequestData::messageSize(httpWaitRequest);
|
|
for (mtpPreRequestMap::iterator i = toSend.begin(), e = toSend.end(); i != e; ++i) {
|
|
containerSize += mtpRequestData::messageSize(i.value());
|
|
if (needsLayer && i.value()->needsLayer) {
|
|
containerSize += initSizeInInts;
|
|
willNeedInit = true;
|
|
}
|
|
}
|
|
mtpBuffer initSerialized;
|
|
if (willNeedInit) {
|
|
initSerialized.reserve(initSizeInInts);
|
|
initSerialized.push_back(mtpc_invokeWithLayer);
|
|
initSerialized.push_back(MTP::internal::CurrentLayer);
|
|
initWrapper.write(initSerialized);
|
|
}
|
|
toSendRequest = mtpRequestData::prepare(containerSize, containerSize + 3 * toSend.size()); // prepare container + each in invoke after
|
|
toSendRequest->push_back(mtpc_msg_container);
|
|
toSendRequest->push_back(toSendCount);
|
|
|
|
mtpMsgId bigMsgId = msgid(); // check for a valid container
|
|
|
|
QWriteLocker locker2(sessionData->haveSentMutex()); // the fact of this lock is used in replaceMsgId()
|
|
mtpRequestMap &haveSent(sessionData->haveSentMap());
|
|
|
|
QWriteLocker locker3(sessionData->wereAckedMutex()); // the fact of this lock is used in replaceMsgId()
|
|
mtpRequestIdsMap &wereAcked(sessionData->wereAckedMap());
|
|
|
|
mtpRequest haveSentIdsWrap(mtpRequestData::prepare(idsWrapSize)); // prepare "request-like" wrap for msgId vector
|
|
haveSentIdsWrap->requestId = 0;
|
|
haveSentIdsWrap->resize(haveSentIdsWrap->size() + idsWrapSize);
|
|
mtpMsgId *haveSentArr = (mtpMsgId*)(haveSentIdsWrap->data() + 8);
|
|
|
|
if (pingRequest) {
|
|
_pingMsgId = placeToContainer(toSendRequest, bigMsgId, haveSentArr, pingRequest);
|
|
needAnyResponse = true;
|
|
} else if (resendRequest || stateRequest) {
|
|
needAnyResponse = true;
|
|
}
|
|
for (mtpPreRequestMap::iterator i = toSend.begin(), e = toSend.end(); i != e; ++i) {
|
|
mtpRequest &req(i.value());
|
|
mtpMsgId msgId = prepareToSend(req, bigMsgId);
|
|
if (msgId > bigMsgId) msgId = replaceMsgId(req, bigMsgId);
|
|
if (msgId >= bigMsgId) bigMsgId = msgid();
|
|
*(haveSentArr++) = msgId;
|
|
bool added = false;
|
|
if (req->requestId) {
|
|
if (mtpRequestData::needAck(req)) {
|
|
req->msDate = mtpRequestData::isStateRequest(req) ? 0 : getms(true);
|
|
int32 reqNeedsLayer = (needsLayer && req->needsLayer) ? toSendRequest->size() : 0;
|
|
if (req->after) {
|
|
wrapInvokeAfter(toSendRequest, req, haveSent, reqNeedsLayer ? initSizeInInts : 0);
|
|
if (reqNeedsLayer) {
|
|
memcpy(toSendRequest->data() + reqNeedsLayer + 4, initSerialized.constData(), initSize);
|
|
*(toSendRequest->data() + reqNeedsLayer + 3) += initSize;
|
|
}
|
|
added = true;
|
|
} else if (reqNeedsLayer) {
|
|
toSendRequest->resize(reqNeedsLayer + initSizeInInts + mtpRequestData::messageSize(req));
|
|
memcpy(toSendRequest->data() + reqNeedsLayer, req->constData() + 4, 4 * sizeof(mtpPrime));
|
|
memcpy(toSendRequest->data() + reqNeedsLayer + 4, initSerialized.constData(), initSize);
|
|
memcpy(toSendRequest->data() + reqNeedsLayer + 4 + initSizeInInts, req->constData() + 8, req.innerLength());
|
|
*(toSendRequest->data() + reqNeedsLayer + 3) += initSize;
|
|
added = true;
|
|
}
|
|
haveSent.insert(msgId, req);
|
|
|
|
needAnyResponse = true;
|
|
} else {
|
|
wereAcked.insert(msgId, req->requestId);
|
|
}
|
|
}
|
|
if (!added) {
|
|
uint32 from = toSendRequest->size(), len = mtpRequestData::messageSize(req);
|
|
toSendRequest->resize(from + len);
|
|
memcpy(toSendRequest->data() + from, req->constData() + 4, len * sizeof(mtpPrime));
|
|
}
|
|
}
|
|
if (stateRequest) {
|
|
mtpMsgId msgId = placeToContainer(toSendRequest, bigMsgId, haveSentArr, stateRequest);
|
|
stateRequest->msDate = 0; // 0 for state request, do not request state of it
|
|
haveSent.insert(msgId, stateRequest);
|
|
}
|
|
if (resendRequest) placeToContainer(toSendRequest, bigMsgId, haveSentArr, resendRequest);
|
|
if (ackRequest) placeToContainer(toSendRequest, bigMsgId, haveSentArr, ackRequest);
|
|
if (httpWaitRequest) placeToContainer(toSendRequest, bigMsgId, haveSentArr, httpWaitRequest);
|
|
|
|
mtpMsgId contMsgId = prepareToSend(toSendRequest, bigMsgId);
|
|
*(mtpMsgId*)(haveSentIdsWrap->data() + 4) = contMsgId;
|
|
(*haveSentIdsWrap)[6] = 0; // for container, msDate = 0, seqNo = 0
|
|
haveSent.insert(contMsgId, haveSentIdsWrap);
|
|
toSend.clear();
|
|
}
|
|
}
|
|
mtpRequestData::padding(toSendRequest);
|
|
sendRequest(toSendRequest, needAnyResponse, lockFinished);
|
|
}
|
|
|
|
void ConnectionPrivate::retryByTimer() {
|
|
QReadLocker lockFinished(&sessionDataMutex);
|
|
if (!sessionData) return;
|
|
|
|
if (retryTimeout < 3) {
|
|
++retryTimeout;
|
|
} else if (retryTimeout == 3) {
|
|
retryTimeout = 1000;
|
|
} else if (retryTimeout < 64000) {
|
|
retryTimeout *= 2;
|
|
}
|
|
if (keyId == kRecreateKeyId) {
|
|
if (sessionData->getKey()) {
|
|
unlockKey();
|
|
|
|
QWriteLocker lock(sessionData->keyMutex());
|
|
sessionData->owner()->destroyKey();
|
|
}
|
|
keyId = 0;
|
|
}
|
|
connectToServer();
|
|
}
|
|
|
|
void ConnectionPrivate::restartNow() {
|
|
retryTimeout = 1;
|
|
retryTimer.stop();
|
|
restart();
|
|
}
|
|
|
|
void ConnectionPrivate::connectToServer(bool afterConfig) {
|
|
if (_finished) {
|
|
DEBUG_LOG(("MTP Error: connectToServer() called for finished connection!"));
|
|
return;
|
|
}
|
|
auto bareDc = bareDcId(_shiftedDcId);
|
|
_dcType = Messenger::Instance().dcOptions()->dcType(_shiftedDcId);
|
|
if (_dcType == DcType::MediaDownload) { // using media_only addresses only if key for this dc is already created
|
|
QReadLocker lockFinished(&sessionDataMutex);
|
|
if (!sessionData || !sessionData->getKey()) {
|
|
_dcType = DcType::Regular;
|
|
}
|
|
} else if (_dcType == DcType::Cdn && !_instance->isKeysDestroyer()) {
|
|
if (!Messenger::Instance().dcOptions()->hasCDNKeysForDc(bareDc)) {
|
|
requestCDNConfig();
|
|
return;
|
|
}
|
|
}
|
|
|
|
using Variants = DcOptions::Variants;
|
|
auto kIPv4 = Variants::IPv4;
|
|
auto kIPv6 = Variants::IPv6;
|
|
auto kTcp = Variants::Tcp;
|
|
auto kHttp = Variants::Http;
|
|
auto variants = Messenger::Instance().dcOptions()->lookup(bareDc, _dcType);
|
|
auto noIPv4 = (variants.data[kIPv4][kHttp].port == 0);
|
|
auto noIPv6 = (!Global::TryIPv6() || (variants.data[kIPv6][kHttp].port == 0));
|
|
if (noIPv4 && noIPv6) {
|
|
if (_instance->isKeysDestroyer()) {
|
|
LOG(("MTP Error: DC %1 options for IPv4 over HTTP not found for auth key destruction!").arg(_shiftedDcId));
|
|
if (Global::TryIPv6() && noIPv6) LOG(("MTP Error: DC %1 options for IPv6 over HTTP not found for auth key destruction!").arg(_shiftedDcId));
|
|
emit _instance->keyDestroyed(_shiftedDcId);
|
|
return;
|
|
} else if (afterConfig) {
|
|
LOG(("MTP Error: DC %1 options for IPv4 over HTTP not found right after config load!").arg(_shiftedDcId));
|
|
if (Global::TryIPv6() && noIPv6) LOG(("MTP Error: DC %1 options for IPv6 over HTTP not found right after config load!").arg(_shiftedDcId));
|
|
return restart();
|
|
}
|
|
DEBUG_LOG(("MTP Info: DC %1 options for IPv4 over HTTP not found, waiting for config").arg(_shiftedDcId));
|
|
if (Global::TryIPv6() && noIPv6) DEBUG_LOG(("MTP Info: DC %1 options for IPv6 over HTTP not found, waiting for config").arg(_shiftedDcId));
|
|
connect(_instance, SIGNAL(configLoaded()), this, SLOT(onConfigLoaded()), Qt::UniqueConnection);
|
|
InvokeQueued(_instance, [instance = _instance] { instance->configLoadRequest(); });
|
|
return;
|
|
}
|
|
|
|
if (afterConfig && (_conn4 || _conn6)) return;
|
|
|
|
createConn(!noIPv4, !noIPv6);
|
|
retryTimer.stop();
|
|
_waitForConnectedTimer.stop();
|
|
|
|
setState(ConnectingState);
|
|
_pingId = _pingMsgId = _pingIdToSend = _pingSendAt = 0;
|
|
_pingSender.stop();
|
|
|
|
if (!noIPv4) DEBUG_LOG(("MTP Info: creating IPv4 connection to %1:%2 (tcp) and %3:%4 (http)...").arg(variants.data[kIPv4][kTcp].ip.c_str()).arg(variants.data[kIPv4][kTcp].port).arg(variants.data[kIPv4][kHttp].ip.c_str()).arg(variants.data[kIPv4][kHttp].port));
|
|
if (!noIPv6) DEBUG_LOG(("MTP Info: creating IPv6 connection to [%1]:%2 (tcp) and [%3]:%4 (http)...").arg(variants.data[kIPv6][kTcp].ip.c_str()).arg(variants.data[kIPv6][kTcp].port).arg(variants.data[kIPv4][kHttp].ip.c_str()).arg(variants.data[kIPv4][kHttp].port));
|
|
|
|
_waitForConnectedTimer.start(_waitForConnected);
|
|
if (auto conn = _conn4) {
|
|
connect(conn, SIGNAL(connected()), this, SLOT(onConnected4()));
|
|
connect(conn, SIGNAL(disconnected()), this, SLOT(onDisconnected4()));
|
|
conn->connectTcp(variants.data[kIPv4][kTcp]);
|
|
conn->connectHttp(variants.data[kIPv4][kHttp]);
|
|
}
|
|
if (auto conn = _conn6) {
|
|
connect(conn, SIGNAL(connected()), this, SLOT(onConnected6()));
|
|
connect(conn, SIGNAL(disconnected()), this, SLOT(onDisconnected6()));
|
|
conn->connectTcp(variants.data[kIPv6][kTcp]);
|
|
conn->connectHttp(variants.data[kIPv6][kHttp]);
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::restart() {
|
|
QReadLocker lockFinished(&sessionDataMutex);
|
|
if (!sessionData) return;
|
|
|
|
DEBUG_LOG(("MTP Info: restarting Connection"));
|
|
|
|
_waitForReceivedTimer.stop();
|
|
_waitForConnectedTimer.stop();
|
|
|
|
auto key = sessionData->getKey();
|
|
if (key) {
|
|
if (!sessionData->isCheckedKey()) {
|
|
// No destroying in case of an error.
|
|
//
|
|
//if (mayBeBadKey) {
|
|
// clearMessages();
|
|
// keyId = kRecreateKeyId;
|
|
// retryTimeout = 1; // no ddos please
|
|
// LOG(("MTP Info: key may be bad and was not checked - but won't be destroyed, no log outs because of bad server right now..."));
|
|
//}
|
|
} else {
|
|
sessionData->setCheckedKey(false);
|
|
}
|
|
}
|
|
|
|
lockFinished.unlock();
|
|
doDisconnect();
|
|
|
|
lockFinished.relock();
|
|
if (sessionData && _needSessionReset) {
|
|
resetSession();
|
|
}
|
|
restarted = true;
|
|
if (retryTimer.isActive()) return;
|
|
|
|
DEBUG_LOG(("MTP Info: restart timeout: %1ms").arg(retryTimeout));
|
|
setState(-retryTimeout);
|
|
}
|
|
|
|
void ConnectionPrivate::onSentSome(uint64 size) {
|
|
if (!_waitForReceivedTimer.isActive()) {
|
|
auto remain = static_cast<uint64>(_waitForReceived);
|
|
if (!oldConnection) {
|
|
auto remainBySize = size * _waitForReceived / 8192; // 8kb / sec, so 512 kb give 64 sec
|
|
remain = snap(remainBySize, remain, uint64(MTPMaxReceiveDelay));
|
|
if (remain != _waitForReceived) {
|
|
DEBUG_LOG(("Checking connect for request with size %1 bytes, delay will be %2").arg(size).arg(remain));
|
|
}
|
|
}
|
|
if (isUploadDcId(_shiftedDcId)) {
|
|
remain *= kUploadSessionsCount;
|
|
} else if (isDownloadDcId(_shiftedDcId)) {
|
|
remain *= kDownloadSessionsCount;
|
|
}
|
|
_waitForReceivedTimer.start(remain);
|
|
}
|
|
if (!firstSentAt) firstSentAt = getms(true);
|
|
}
|
|
|
|
void ConnectionPrivate::onReceivedSome() {
|
|
if (oldConnection) {
|
|
oldConnection = false;
|
|
DEBUG_LOG(("This connection marked as not old!"));
|
|
}
|
|
oldConnectionTimer.start(MTPConnectionOldTimeout);
|
|
_waitForReceivedTimer.stop();
|
|
if (firstSentAt > 0) {
|
|
int32 ms = getms(true) - firstSentAt;
|
|
DEBUG_LOG(("MTP Info: response in %1ms, _waitForReceived: %2ms").arg(ms).arg(_waitForReceived));
|
|
|
|
if (ms > 0 && ms * 2 < int32(_waitForReceived)) _waitForReceived = qMax(ms * 2, int32(MTPMinReceiveDelay));
|
|
firstSentAt = -1;
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::onOldConnection() {
|
|
oldConnection = true;
|
|
_waitForReceived = MTPMinReceiveDelay;
|
|
DEBUG_LOG(("This connection marked as old! _waitForReceived now %1ms").arg(_waitForReceived));
|
|
}
|
|
|
|
void ConnectionPrivate::onPingSender() {
|
|
if (_pingId) {
|
|
if (_pingSendAt + (MTPPingSendAfter - MTPPingSendAfterAuto - 1) * 1000LL < getms(true)) {
|
|
LOG(("Could not send ping for MTPPingSendAfter seconds, restarting..."));
|
|
return restart();
|
|
} else {
|
|
_pingSender.start(_pingSendAt + (MTPPingSendAfter - MTPPingSendAfterAuto) * 1000LL - getms(true));
|
|
}
|
|
} else {
|
|
emit needToSendAsync();
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::onPingSendForce() {
|
|
if (!_pingId) {
|
|
_pingSendAt = 0;
|
|
DEBUG_LOG(("Will send ping!"));
|
|
tryToSend();
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::onWaitReceivedFailed() {
|
|
if (Global::ConnectionType() != dbictAuto && Global::ConnectionType() != dbictTcpProxy) {
|
|
return;
|
|
}
|
|
|
|
DEBUG_LOG(("MTP Info: bad connection, _waitForReceived: %1ms").arg(_waitForReceived));
|
|
if (_waitForReceived < MTPMaxReceiveDelay) {
|
|
_waitForReceived *= 2;
|
|
}
|
|
doDisconnect();
|
|
restarted = true;
|
|
if (retryTimer.isActive()) return;
|
|
|
|
DEBUG_LOG(("MTP Info: immediate restart!"));
|
|
InvokeQueued(this, [this] { connectToServer(); });
|
|
}
|
|
|
|
void ConnectionPrivate::onWaitConnectedFailed() {
|
|
DEBUG_LOG(("MTP Info: can't connect in %1ms").arg(_waitForConnected));
|
|
if (_waitForConnected < MTPMaxConnectDelay) _waitForConnected *= 2;
|
|
|
|
doDisconnect();
|
|
restarted = true;
|
|
|
|
DEBUG_LOG(("MTP Info: immediate restart!"));
|
|
InvokeQueued(this, [this] { connectToServer(); });
|
|
}
|
|
|
|
void ConnectionPrivate::onWaitIPv4Failed() {
|
|
_conn = _conn6;
|
|
destroyConn(&_conn4);
|
|
|
|
if (_conn) {
|
|
DEBUG_LOG(("MTP Info: can't connect through IPv4, using IPv6 connection."));
|
|
|
|
updateAuthKey();
|
|
} else {
|
|
restart();
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::doDisconnect() {
|
|
destroyConn();
|
|
|
|
{
|
|
QReadLocker lockFinished(&sessionDataMutex);
|
|
if (sessionData) {
|
|
unlockKey();
|
|
}
|
|
}
|
|
|
|
clearAuthKeyData();
|
|
|
|
setState(DisconnectedState);
|
|
restarted = false;
|
|
}
|
|
|
|
void ConnectionPrivate::finishAndDestroy() {
|
|
doDisconnect();
|
|
_finished = true;
|
|
emit finished(_owner);
|
|
deleteLater();
|
|
}
|
|
|
|
void ConnectionPrivate::requestCDNConfig() {
|
|
connect(_instance, SIGNAL(cdnConfigLoaded()), this, SLOT(onCDNConfigLoaded()), Qt::UniqueConnection);
|
|
InvokeQueued(_instance, [instance = _instance] { instance->cdnConfigLoadRequest(); });
|
|
}
|
|
|
|
void ConnectionPrivate::handleReceived() {
|
|
QReadLocker lockFinished(&sessionDataMutex);
|
|
if (!sessionData) return;
|
|
|
|
onReceivedSome();
|
|
|
|
auto restartOnError = [this, &lockFinished] {
|
|
lockFinished.unlock();
|
|
restart();
|
|
};
|
|
|
|
ReadLockerAttempt lock(sessionData->keyMutex());
|
|
if (!lock) {
|
|
DEBUG_LOG(("MTP Error: auth_key for dc %1 busy, cant lock").arg(_shiftedDcId));
|
|
clearMessages();
|
|
keyId = 0;
|
|
|
|
return restartOnError();
|
|
}
|
|
|
|
auto key = sessionData->getKey();
|
|
if (!key || key->keyId() != keyId) {
|
|
DEBUG_LOG(("MTP Error: auth_key id for dc %1 changed").arg(_shiftedDcId));
|
|
return restartOnError();
|
|
}
|
|
|
|
while (!_conn->received().empty()) {
|
|
auto intsBuffer = std::move(_conn->received().front());
|
|
_conn->received().pop_front();
|
|
|
|
constexpr auto kExternalHeaderIntsCount = 6U; // 2 auth_key_id, 4 msg_key
|
|
constexpr auto kEncryptedHeaderIntsCount = 8U; // 2 salt, 2 session, 2 msg_id, 1 seq_no, 1 length
|
|
constexpr auto kMinimalEncryptedIntsCount = kEncryptedHeaderIntsCount + 4U; // + 1 data + 3 padding
|
|
constexpr auto kMinimalIntsCount = kExternalHeaderIntsCount + kMinimalEncryptedIntsCount;
|
|
auto intsCount = uint32(intsBuffer.size());
|
|
auto ints = intsBuffer.constData();
|
|
if (intsCount < kMinimalIntsCount) {
|
|
LOG(("TCP Error: bad message received, len %1").arg(intsCount * kIntSize));
|
|
TCP_LOG(("TCP Error: bad message %1").arg(Logs::mb(ints, intsCount * kIntSize).str()));
|
|
|
|
return restartOnError();
|
|
}
|
|
if (keyId != *(uint64*)ints) {
|
|
LOG(("TCP Error: bad auth_key_id %1 instead of %2 received").arg(keyId).arg(*(uint64*)ints));
|
|
TCP_LOG(("TCP Error: bad message %1").arg(Logs::mb(ints, intsCount * kIntSize).str()));
|
|
|
|
return restartOnError();
|
|
}
|
|
|
|
auto encryptedInts = ints + kExternalHeaderIntsCount;
|
|
auto encryptedIntsCount = (intsCount - kExternalHeaderIntsCount);
|
|
auto encryptedBytesCount = encryptedIntsCount * kIntSize;
|
|
auto decryptedBuffer = QByteArray(encryptedBytesCount, Qt::Uninitialized);
|
|
auto msgKey = *(MTPint128*)(ints + 2);
|
|
|
|
aesIgeDecrypt(encryptedInts, decryptedBuffer.data(), encryptedBytesCount, key, msgKey);
|
|
|
|
auto decryptedInts = reinterpret_cast<const mtpPrime*>(decryptedBuffer.constData());
|
|
auto serverSalt = *(uint64*)&decryptedInts[0];
|
|
auto session = *(uint64*)&decryptedInts[2];
|
|
auto msgId = *(uint64*)&decryptedInts[4];
|
|
auto seqNo = *(uint32*)&decryptedInts[6];
|
|
auto needAck = ((seqNo & 0x01) != 0);
|
|
|
|
auto messageLength = *(uint32*)&decryptedInts[7];
|
|
auto fullDataLength = kEncryptedHeaderIntsCount * kIntSize + messageLength; // Without padding.
|
|
|
|
constexpr auto kMaxPaddingSize = 15U;
|
|
auto paddingSize = encryptedBytesCount - fullDataLength; // Can underflow.
|
|
auto badMessageLength = (/*paddingSize < 0 || */paddingSize > kMaxPaddingSize);
|
|
auto hashedDataLength = badMessageLength ? encryptedBytesCount : fullDataLength;
|
|
auto sha1ForMsgKeyCheck = hashSha1(decryptedInts, hashedDataLength);
|
|
if (memcmp(&msgKey, sha1ForMsgKeyCheck.data() + sha1ForMsgKeyCheck.size() - sizeof(msgKey), sizeof(msgKey)) != 0) {
|
|
LOG(("TCP Error: bad SHA1 hash after aesDecrypt in message."));
|
|
TCP_LOG(("TCP Error: bad message %1").arg(Logs::mb(encryptedInts, encryptedBytesCount).str()));
|
|
|
|
return restartOnError();
|
|
}
|
|
if (badMessageLength || (messageLength & 0x03)) {
|
|
LOG(("TCP Error: bad msg_len received %1, data size: %2").arg(messageLength).arg(encryptedBytesCount));
|
|
TCP_LOG(("TCP Error: bad message %1").arg(Logs::mb(encryptedInts, encryptedBytesCount).str()));
|
|
|
|
return restartOnError();
|
|
}
|
|
|
|
TCP_LOG(("TCP Info: decrypted message %1,%2,%3 is %4 len").arg(msgId).arg(seqNo).arg(Logs::b(needAck)).arg(fullDataLength));
|
|
|
|
uint64 serverSession = sessionData->getSession();
|
|
if (session != serverSession) {
|
|
LOG(("MTP Error: bad server session received"));
|
|
TCP_LOG(("MTP Error: bad server session %1 instead of %2 in message received").arg(session).arg(serverSession));
|
|
|
|
return restartOnError();
|
|
}
|
|
|
|
int32 serverTime((int32)(msgId >> 32)), clientTime(unixtime());
|
|
bool isReply = ((msgId & 0x03) == 1);
|
|
if (!isReply && ((msgId & 0x03) != 3)) {
|
|
LOG(("MTP Error: bad msg_id %1 in message received").arg(msgId));
|
|
|
|
return restartOnError();
|
|
}
|
|
|
|
bool badTime = false;
|
|
uint64 mySalt = sessionData->getSalt();
|
|
if (serverTime > clientTime + 60 || serverTime + 300 < clientTime) {
|
|
DEBUG_LOG(("MTP Info: bad server time from msg_id: %1, my time: %2").arg(serverTime).arg(clientTime));
|
|
badTime = true;
|
|
}
|
|
|
|
bool wasConnected = (getState() == ConnectedState);
|
|
if (serverSalt != mySalt) {
|
|
if (!badTime) {
|
|
DEBUG_LOG(("MTP Info: other salt received... received: %1, my salt: %2, updating...").arg(serverSalt).arg(mySalt));
|
|
sessionData->setSalt(serverSalt);
|
|
if (setState(ConnectedState, ConnectingState)) { // only connected
|
|
if (restarted) {
|
|
emit resendAllAsync();
|
|
restarted = false;
|
|
}
|
|
}
|
|
} else {
|
|
DEBUG_LOG(("MTP Info: other salt received... received: %1, my salt: %2").arg(serverSalt).arg(mySalt));
|
|
}
|
|
} else {
|
|
serverSalt = 0; // dont pass to handle method, so not to lock in setSalt()
|
|
}
|
|
|
|
if (needAck) ackRequestData.push_back(MTP_long(msgId));
|
|
|
|
auto res = HandleResult::Success; // if no need to handle, then succeed
|
|
auto from = decryptedInts + kEncryptedHeaderIntsCount;
|
|
auto end = from + (messageLength / kIntSize);
|
|
auto sfrom = decryptedInts + 4U; // msg_id + seq_no + length + message
|
|
MTP_LOG(_shiftedDcId, ("Recv: ") + mtpTextSerialize(sfrom, end));
|
|
|
|
bool needToHandle = false;
|
|
{
|
|
QWriteLocker lock(sessionData->receivedIdsMutex());
|
|
needToHandle = sessionData->receivedIdsSet().registerMsgId(msgId, needAck);
|
|
}
|
|
if (needToHandle) {
|
|
res = handleOneReceived(from, end, msgId, serverTime, serverSalt, badTime);
|
|
}
|
|
{
|
|
QWriteLocker lock(sessionData->receivedIdsMutex());
|
|
sessionData->receivedIdsSet().shrink();
|
|
}
|
|
|
|
// send acks
|
|
uint32 toAckSize = ackRequestData.size();
|
|
if (toAckSize) {
|
|
DEBUG_LOG(("MTP Info: will send %1 acks, ids: %2").arg(toAckSize).arg(Logs::vector(ackRequestData)));
|
|
emit sendAnythingAsync(MTPAckSendWaiting);
|
|
}
|
|
|
|
bool emitSignal = false;
|
|
{
|
|
QReadLocker locker(sessionData->haveReceivedMutex());
|
|
emitSignal = !sessionData->haveReceivedResponses().isEmpty() || !sessionData->haveReceivedUpdates().isEmpty();
|
|
if (emitSignal) {
|
|
DEBUG_LOG(("MTP Info: emitting needToReceive() - need to parse in another thread, %1 responses, %2 updates.").arg(sessionData->haveReceivedResponses().size()).arg(sessionData->haveReceivedUpdates().size()));
|
|
}
|
|
}
|
|
|
|
if (emitSignal) {
|
|
emit needToReceive();
|
|
}
|
|
|
|
if (res != HandleResult::Success && res != HandleResult::Ignored) {
|
|
_needSessionReset = (res == HandleResult::ResetSession);
|
|
|
|
return restartOnError();
|
|
}
|
|
retryTimeout = 1; // reset restart() timer
|
|
|
|
if (!sessionData->isCheckedKey()) {
|
|
DEBUG_LOG(("MTP Info: marked auth key as checked"));
|
|
sessionData->setCheckedKey(true);
|
|
}
|
|
|
|
if (!wasConnected) {
|
|
if (getState() == ConnectedState) {
|
|
emit needToSendAsync();
|
|
}
|
|
}
|
|
}
|
|
if (_conn->needHttpWait()) {
|
|
emit sendHttpWaitAsync();
|
|
}
|
|
}
|
|
|
|
ConnectionPrivate::HandleResult ConnectionPrivate::handleOneReceived(const mtpPrime *from, const mtpPrime *end, uint64 msgId, int32 serverTime, uint64 serverSalt, bool badTime) {
|
|
mtpTypeId cons = *from;
|
|
try {
|
|
|
|
switch (cons) {
|
|
|
|
case mtpc_gzip_packed: {
|
|
DEBUG_LOG(("Message Info: gzip container"));
|
|
mtpBuffer response = ungzip(++from, end);
|
|
if (!response.size()) {
|
|
return HandleResult::RestartConnection;
|
|
}
|
|
return handleOneReceived(response.data(), response.data() + response.size(), msgId, serverTime, serverSalt, badTime);
|
|
}
|
|
|
|
case mtpc_msg_container: {
|
|
if (++from >= end) throw mtpErrorInsufficient();
|
|
|
|
const mtpPrime *otherEnd;
|
|
uint32 msgsCount = (uint32)*(from++);
|
|
DEBUG_LOG(("Message Info: container received, count: %1").arg(msgsCount));
|
|
for (uint32 i = 0; i < msgsCount; ++i) {
|
|
if (from + 4 >= end) throw mtpErrorInsufficient();
|
|
otherEnd = from + 4;
|
|
|
|
MTPlong inMsgId;
|
|
inMsgId.read(from, otherEnd);
|
|
bool isReply = ((inMsgId.v & 0x03) == 1);
|
|
if (!isReply && ((inMsgId.v & 0x03) != 3)) {
|
|
LOG(("Message Error: bad msg_id %1 in contained message received").arg(inMsgId.v));
|
|
return HandleResult::RestartConnection;
|
|
}
|
|
|
|
MTPint inSeqNo;
|
|
inSeqNo.read(from, otherEnd);
|
|
MTPint bytes;
|
|
bytes.read(from, otherEnd);
|
|
if ((bytes.v & 0x03) || bytes.v < 4) {
|
|
LOG(("Message Error: bad length %1 of contained message received").arg(bytes.v));
|
|
return HandleResult::RestartConnection;
|
|
}
|
|
|
|
bool needAck = (inSeqNo.v & 0x01);
|
|
if (needAck) ackRequestData.push_back(inMsgId);
|
|
|
|
DEBUG_LOG(("Message Info: message from container, msg_id: %1, needAck: %2").arg(inMsgId.v).arg(Logs::b(needAck)));
|
|
|
|
otherEnd = from + (bytes.v >> 2);
|
|
if (otherEnd > end) throw mtpErrorInsufficient();
|
|
|
|
bool needToHandle = false;
|
|
{
|
|
QWriteLocker lock(sessionData->receivedIdsMutex());
|
|
needToHandle = sessionData->receivedIdsSet().registerMsgId(inMsgId.v, needAck);
|
|
}
|
|
auto res = HandleResult::Success; // if no need to handle, then succeed
|
|
if (needToHandle) {
|
|
res = handleOneReceived(from, otherEnd, inMsgId.v, serverTime, serverSalt, badTime);
|
|
badTime = false;
|
|
}
|
|
if (res != HandleResult::Success) {
|
|
return res;
|
|
}
|
|
|
|
from = otherEnd;
|
|
}
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_msgs_ack: {
|
|
MTPMsgsAck msg;
|
|
msg.read(from, end);
|
|
auto &ids = msg.c_msgs_ack().vmsg_ids.v;
|
|
uint32 idsCount = ids.size();
|
|
|
|
DEBUG_LOG(("Message Info: acks received, ids: %1").arg(Logs::vector(ids)));
|
|
if (!idsCount) return (badTime ? HandleResult::Ignored : HandleResult::Success);
|
|
|
|
if (badTime) {
|
|
if (requestsFixTimeSalt(ids, serverTime, serverSalt)) {
|
|
badTime = false;
|
|
} else {
|
|
return HandleResult::Ignored;
|
|
}
|
|
}
|
|
requestsAcked(ids);
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_bad_msg_notification: {
|
|
MTPBadMsgNotification msg;
|
|
msg.read(from, end);
|
|
const auto &data(msg.c_bad_msg_notification());
|
|
LOG(("Message Info: bad message notification received (error_code %3) for msg_id = %1, seq_no = %2").arg(data.vbad_msg_id.v).arg(data.vbad_msg_seqno.v).arg(data.verror_code.v));
|
|
|
|
mtpMsgId resendId = data.vbad_msg_id.v;
|
|
if (resendId == _pingMsgId) {
|
|
_pingId = 0;
|
|
}
|
|
int32 errorCode = data.verror_code.v;
|
|
if (errorCode == 16 || errorCode == 17 || errorCode == 32 || errorCode == 33 || errorCode == 64) { // can handle
|
|
bool needResend = (errorCode == 16 || errorCode == 17); // bad msg_id
|
|
if (errorCode == 64) { // bad container!
|
|
needResend = true;
|
|
if (cDebug()) {
|
|
mtpRequest request;
|
|
{
|
|
QWriteLocker locker(sessionData->haveSentMutex());
|
|
mtpRequestMap &haveSent(sessionData->haveSentMap());
|
|
|
|
mtpRequestMap::const_iterator i = haveSent.constFind(resendId);
|
|
if (i == haveSent.cend()) {
|
|
LOG(("Message Error: Container not found!"));
|
|
} else {
|
|
request = i.value();
|
|
}
|
|
}
|
|
if (request) {
|
|
if (mtpRequestData::isSentContainer(request)) {
|
|
QStringList lst;
|
|
const mtpMsgId *ids = (const mtpMsgId *)(request->constData() + 8);
|
|
for (uint32 i = 0, l = (request->size() - 8) >> 1; i < l; ++i) {
|
|
lst.push_back(QString::number(ids[i]));
|
|
}
|
|
LOG(("Message Info: bad container received! messages: %1").arg(lst.join(',')));
|
|
} else {
|
|
LOG(("Message Error: bad container received, but request is not a container!"));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!wasSent(resendId)) {
|
|
DEBUG_LOG(("Message Error: such message was not sent recently %1").arg(resendId));
|
|
return (badTime ? HandleResult::Ignored : HandleResult::Success);
|
|
}
|
|
|
|
if (needResend) { // bad msg_id
|
|
if (serverSalt) sessionData->setSalt(serverSalt);
|
|
unixtimeSet(serverTime, true);
|
|
|
|
DEBUG_LOG(("Message Info: unixtime updated, now %1, resending in container...").arg(serverTime));
|
|
|
|
resend(resendId, 0, true);
|
|
} else { // must create new session, because msg_id and msg_seqno are inconsistent
|
|
if (badTime) {
|
|
if (serverSalt) sessionData->setSalt(serverSalt);
|
|
unixtimeSet(serverTime, true);
|
|
badTime = false;
|
|
}
|
|
LOG(("Message Info: bad message notification received, msgId %1, error_code %2").arg(data.vbad_msg_id.v).arg(errorCode));
|
|
return HandleResult::ResetSession;
|
|
}
|
|
} else { // fatal (except 48, but it must not get here)
|
|
mtpMsgId resendId = data.vbad_msg_id.v;
|
|
mtpRequestId requestId = wasSent(resendId);
|
|
if (requestId) {
|
|
LOG(("Message Error: bad message notification received, msgId %1, error_code %2, fatal: clearing callbacks").arg(data.vbad_msg_id.v).arg(errorCode));
|
|
_instance->clearCallbacksDelayed(RPCCallbackClears(1, RPCCallbackClear(requestId, -errorCode)));
|
|
} else {
|
|
DEBUG_LOG(("Message Error: such message was not sent recently %1").arg(resendId));
|
|
}
|
|
return (badTime ? HandleResult::Ignored : HandleResult::Success);
|
|
}
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_bad_server_salt: {
|
|
MTPBadMsgNotification msg;
|
|
msg.read(from, end);
|
|
const auto &data(msg.c_bad_server_salt());
|
|
DEBUG_LOG(("Message Info: bad server salt received (error_code %4) for msg_id = %1, seq_no = %2, new salt: %3").arg(data.vbad_msg_id.v).arg(data.vbad_msg_seqno.v).arg(data.vnew_server_salt.v).arg(data.verror_code.v));
|
|
|
|
mtpMsgId resendId = data.vbad_msg_id.v;
|
|
if (resendId == _pingMsgId) {
|
|
_pingId = 0;
|
|
} else if (!wasSent(resendId)) {
|
|
DEBUG_LOG(("Message Error: such message was not sent recently %1").arg(resendId));
|
|
return (badTime ? HandleResult::Ignored : HandleResult::Success);
|
|
}
|
|
|
|
uint64 serverSalt = data.vnew_server_salt.v;
|
|
sessionData->setSalt(serverSalt);
|
|
unixtimeSet(serverTime);
|
|
|
|
if (setState(ConnectedState, ConnectingState)) { // maybe only connected
|
|
if (restarted) {
|
|
emit resendAllAsync();
|
|
restarted = false;
|
|
}
|
|
}
|
|
|
|
badTime = false;
|
|
|
|
DEBUG_LOG(("Message Info: unixtime updated, now %1, server_salt updated, now %2, resending...").arg(serverTime).arg(serverSalt));
|
|
resend(resendId);
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_msgs_state_req: {
|
|
if (badTime) {
|
|
DEBUG_LOG(("Message Info: skipping with bad time..."));
|
|
return HandleResult::Ignored;
|
|
}
|
|
MTPMsgsStateReq msg;
|
|
msg.read(from, end);
|
|
auto &ids = msg.c_msgs_state_req().vmsg_ids.v;
|
|
auto idsCount = ids.size();
|
|
DEBUG_LOG(("Message Info: msgs_state_req received, ids: %1").arg(Logs::vector(ids)));
|
|
if (!idsCount) return HandleResult::Success;
|
|
|
|
QByteArray info(idsCount, Qt::Uninitialized);
|
|
{
|
|
QReadLocker lock(sessionData->receivedIdsMutex());
|
|
auto &receivedIds = sessionData->receivedIdsSet();
|
|
auto minRecv = receivedIds.min();
|
|
auto maxRecv = receivedIds.max();
|
|
|
|
QReadLocker locker(sessionData->wereAckedMutex());
|
|
const mtpRequestIdsMap &wereAcked(sessionData->wereAckedMap());
|
|
mtpRequestIdsMap::const_iterator wereAckedEnd(wereAcked.cend());
|
|
|
|
for (uint32 i = 0, l = idsCount; i < l; ++i) {
|
|
char state = 0;
|
|
uint64 reqMsgId = ids[i].v;
|
|
if (reqMsgId < minRecv) {
|
|
state |= 0x01;
|
|
} else if (reqMsgId > maxRecv) {
|
|
state |= 0x03;
|
|
} else {
|
|
auto msgIdState = receivedIds.lookup(reqMsgId);
|
|
if (msgIdState == ReceivedMsgIds::State::NotFound) {
|
|
state |= 0x02;
|
|
} else {
|
|
state |= 0x04;
|
|
if (wereAcked.constFind(reqMsgId) != wereAckedEnd) {
|
|
state |= 0x80; // we know, that server knows, that we received request
|
|
}
|
|
if (msgIdState == ReceivedMsgIds::State::NeedsAck) { // need ack, so we sent ack
|
|
state |= 0x08;
|
|
} else {
|
|
state |= 0x10;
|
|
}
|
|
}
|
|
}
|
|
info[i] = state;
|
|
}
|
|
}
|
|
emit sendMsgsStateInfoAsync(msgId, info);
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_msgs_state_info: {
|
|
MTPMsgsStateInfo msg;
|
|
msg.read(from, end);
|
|
auto &data = msg.c_msgs_state_info();
|
|
|
|
auto reqMsgId = data.vreq_msg_id.v;
|
|
auto &states = data.vinfo.v;
|
|
|
|
DEBUG_LOG(("Message Info: msg state received, msgId %1, reqMsgId: %2, HEX states %3").arg(msgId).arg(reqMsgId).arg(Logs::mb(states.data(), states.length()).str()));
|
|
mtpRequest requestBuffer;
|
|
{ // find this request in session-shared sent requests map
|
|
QReadLocker locker(sessionData->haveSentMutex());
|
|
const mtpRequestMap &haveSent(sessionData->haveSentMap());
|
|
mtpRequestMap::const_iterator replyTo = haveSent.constFind(reqMsgId);
|
|
if (replyTo == haveSent.cend()) { // do not look in toResend, because we do not resend msgs_state_req requests
|
|
DEBUG_LOG(("Message Error: such message was not sent recently %1").arg(reqMsgId));
|
|
return (badTime ? HandleResult::Ignored : HandleResult::Success);
|
|
}
|
|
if (badTime) {
|
|
if (serverSalt) sessionData->setSalt(serverSalt); // requestsFixTimeSalt with no lookup
|
|
unixtimeSet(serverTime, true);
|
|
|
|
DEBUG_LOG(("Message Info: unixtime updated from mtpc_msgs_state_info, now %1").arg(serverTime));
|
|
|
|
badTime = false;
|
|
}
|
|
requestBuffer = replyTo.value();
|
|
}
|
|
QVector<MTPlong> toAckReq(1, MTP_long(reqMsgId)), toAck;
|
|
requestsAcked(toAck, true);
|
|
|
|
if (requestBuffer->size() < 9) {
|
|
LOG(("Message Error: bad request %1 found in requestMap, size: %2").arg(reqMsgId).arg(requestBuffer->size()));
|
|
return HandleResult::RestartConnection;
|
|
}
|
|
try {
|
|
const mtpPrime *rFrom = requestBuffer->constData() + 8, *rEnd = requestBuffer->constData() + requestBuffer->size();
|
|
if (mtpTypeId(*rFrom) == mtpc_msgs_state_req) {
|
|
MTPMsgsStateReq request;
|
|
request.read(rFrom, rEnd);
|
|
handleMsgsStates(request.c_msgs_state_req().vmsg_ids.v, states, toAck);
|
|
} else {
|
|
MTPMsgResendReq request;
|
|
request.read(rFrom, rEnd);
|
|
handleMsgsStates(request.c_msg_resend_req().vmsg_ids.v, states, toAck);
|
|
}
|
|
} catch(Exception &) {
|
|
LOG(("Message Error: could not parse sent msgs_state_req"));
|
|
throw;
|
|
}
|
|
|
|
requestsAcked(toAck);
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_msgs_all_info: {
|
|
if (badTime) {
|
|
DEBUG_LOG(("Message Info: skipping with bad time..."));
|
|
return HandleResult::Ignored;
|
|
}
|
|
|
|
MTPMsgsAllInfo msg;
|
|
msg.read(from, end);
|
|
auto &data = msg.c_msgs_all_info();
|
|
auto &ids = data.vmsg_ids.v;
|
|
auto &states = data.vinfo.v;
|
|
|
|
QVector<MTPlong> toAck;
|
|
|
|
DEBUG_LOG(("Message Info: msgs all info received, msgId %1, reqMsgIds: %2, states %3").arg(msgId).arg(Logs::vector(ids)).arg(Logs::mb(states.data(), states.length()).str()));
|
|
handleMsgsStates(ids, states, toAck);
|
|
|
|
requestsAcked(toAck);
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_msg_detailed_info: {
|
|
MTPMsgDetailedInfo msg;
|
|
msg.read(from, end);
|
|
const auto &data(msg.c_msg_detailed_info());
|
|
|
|
DEBUG_LOG(("Message Info: msg detailed info, sent msgId %1, answerId %2, status %3, bytes %4").arg(data.vmsg_id.v).arg(data.vanswer_msg_id.v).arg(data.vstatus.v).arg(data.vbytes.v));
|
|
|
|
QVector<MTPlong> ids(1, data.vmsg_id);
|
|
if (badTime) {
|
|
if (requestsFixTimeSalt(ids, serverTime, serverSalt)) {
|
|
badTime = false;
|
|
} else {
|
|
DEBUG_LOG(("Message Info: error, such message was not sent recently %1").arg(data.vmsg_id.v));
|
|
return HandleResult::Ignored;
|
|
}
|
|
}
|
|
requestsAcked(ids);
|
|
|
|
bool received = false;
|
|
MTPlong resMsgId = data.vanswer_msg_id;
|
|
{
|
|
QReadLocker lock(sessionData->receivedIdsMutex());
|
|
received = (sessionData->receivedIdsSet().lookup(resMsgId.v) != ReceivedMsgIds::State::NotFound);
|
|
}
|
|
if (received) {
|
|
ackRequestData.push_back(resMsgId);
|
|
} else {
|
|
DEBUG_LOG(("Message Info: answer message %1 was not received, requesting...").arg(resMsgId.v));
|
|
resendRequestData.push_back(resMsgId);
|
|
}
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_msg_new_detailed_info: {
|
|
if (badTime) {
|
|
DEBUG_LOG(("Message Info: skipping msg_new_detailed_info with bad time..."));
|
|
return HandleResult::Ignored;
|
|
}
|
|
MTPMsgDetailedInfo msg;
|
|
msg.read(from, end);
|
|
const auto &data(msg.c_msg_new_detailed_info());
|
|
|
|
DEBUG_LOG(("Message Info: msg new detailed info, answerId %2, status %3, bytes %4").arg(data.vanswer_msg_id.v).arg(data.vstatus.v).arg(data.vbytes.v));
|
|
|
|
bool received = false;
|
|
MTPlong resMsgId = data.vanswer_msg_id;
|
|
{
|
|
QReadLocker lock(sessionData->receivedIdsMutex());
|
|
received = (sessionData->receivedIdsSet().lookup(resMsgId.v) != ReceivedMsgIds::State::NotFound);
|
|
}
|
|
if (received) {
|
|
ackRequestData.push_back(resMsgId);
|
|
} else {
|
|
DEBUG_LOG(("Message Info: answer message %1 was not received, requesting...").arg(resMsgId.v));
|
|
resendRequestData.push_back(resMsgId);
|
|
}
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_msg_resend_req: {
|
|
MTPMsgResendReq msg;
|
|
msg.read(from, end);
|
|
auto &ids = msg.c_msg_resend_req().vmsg_ids.v;
|
|
|
|
auto idsCount = ids.size();
|
|
DEBUG_LOG(("Message Info: resend of msgs requested, ids: %1").arg(Logs::vector(ids)));
|
|
if (!idsCount) return (badTime ? HandleResult::Ignored : HandleResult::Success);
|
|
|
|
QVector<quint64> toResend(ids.size());
|
|
for (int32 i = 0, l = ids.size(); i < l; ++i) {
|
|
toResend[i] = ids.at(i).v;
|
|
}
|
|
resendMany(toResend, 0, false, true);
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_rpc_result: {
|
|
if (from + 3 > end) throw mtpErrorInsufficient();
|
|
auto response = SerializedMessage();
|
|
|
|
MTPlong reqMsgId;
|
|
reqMsgId.read(++from, end);
|
|
mtpTypeId typeId = from[0];
|
|
|
|
DEBUG_LOG(("RPC Info: response received for %1, queueing...").arg(reqMsgId.v));
|
|
|
|
QVector<MTPlong> ids(1, reqMsgId);
|
|
if (badTime) {
|
|
if (requestsFixTimeSalt(ids, serverTime, serverSalt)) {
|
|
badTime = false;
|
|
} else {
|
|
DEBUG_LOG(("Message Info: error, such message was not sent recently %1").arg(reqMsgId.v));
|
|
return HandleResult::Ignored;
|
|
}
|
|
}
|
|
requestsAcked(ids, true);
|
|
|
|
if (typeId == mtpc_gzip_packed) {
|
|
DEBUG_LOG(("RPC Info: gzip container"));
|
|
response = ungzip(++from, end);
|
|
if (!response.size()) {
|
|
return HandleResult::RestartConnection;
|
|
}
|
|
typeId = response[0];
|
|
} else {
|
|
response.resize(end - from);
|
|
memcpy(response.data(), from, (end - from) * sizeof(mtpPrime));
|
|
}
|
|
if (!sessionData->layerWasInited()) {
|
|
sessionData->setLayerWasInited(true);
|
|
sessionData->owner()->notifyLayerInited(true);
|
|
}
|
|
|
|
auto requestId = wasSent(reqMsgId.v);
|
|
if (requestId && requestId != mtpRequestId(0xFFFFFFFF)) {
|
|
// Save rpc_result for processing in the main thread.
|
|
QWriteLocker locker(sessionData->haveReceivedMutex());
|
|
sessionData->haveReceivedResponses().insert(requestId, response);
|
|
} else {
|
|
DEBUG_LOG(("RPC Info: requestId not found for msgId %1").arg(reqMsgId.v));
|
|
}
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_new_session_created: {
|
|
const mtpPrime *start = from;
|
|
MTPNewSession msg;
|
|
msg.read(from, end);
|
|
const auto &data(msg.c_new_session_created());
|
|
|
|
if (badTime) {
|
|
if (requestsFixTimeSalt(QVector<MTPlong>(1, data.vfirst_msg_id), serverTime, serverSalt)) {
|
|
badTime = false;
|
|
} else {
|
|
DEBUG_LOG(("Message Info: error, such message was not sent recently %1").arg(data.vfirst_msg_id.v));
|
|
return HandleResult::Ignored;
|
|
}
|
|
}
|
|
|
|
DEBUG_LOG(("Message Info: new server session created, unique_id %1, first_msg_id %2, server_salt %3").arg(data.vunique_id.v).arg(data.vfirst_msg_id.v).arg(data.vserver_salt.v));
|
|
sessionData->setSalt(data.vserver_salt.v);
|
|
|
|
mtpMsgId firstMsgId = data.vfirst_msg_id.v;
|
|
QVector<quint64> toResend;
|
|
{
|
|
QReadLocker locker(sessionData->haveSentMutex());
|
|
const mtpRequestMap &haveSent(sessionData->haveSentMap());
|
|
toResend.reserve(haveSent.size());
|
|
for (mtpRequestMap::const_iterator i = haveSent.cbegin(), e = haveSent.cend(); i != e; ++i) {
|
|
if (i.key() >= firstMsgId) break;
|
|
if (i.value()->requestId) toResend.push_back(i.key());
|
|
}
|
|
}
|
|
resendMany(toResend, 10, true);
|
|
|
|
mtpBuffer update(from - start);
|
|
if (from > start) memcpy(update.data(), start, (from - start) * sizeof(mtpPrime));
|
|
|
|
// Notify main process about new session - need to get difference.
|
|
QWriteLocker locker(sessionData->haveReceivedMutex());
|
|
sessionData->haveReceivedUpdates().push_back(SerializedMessage(update));
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_ping: {
|
|
if (badTime) return HandleResult::Ignored;
|
|
|
|
MTPPing msg;
|
|
msg.read(from, end);
|
|
DEBUG_LOG(("Message Info: ping received, ping_id: %1, sending pong...").arg(msg.vping_id.v));
|
|
|
|
emit sendPongAsync(msgId, msg.vping_id.v);
|
|
} return HandleResult::Success;
|
|
|
|
case mtpc_pong: {
|
|
MTPPong msg;
|
|
msg.read(from, end);
|
|
const auto &data(msg.c_pong());
|
|
DEBUG_LOG(("Message Info: pong received, msg_id: %1, ping_id: %2").arg(data.vmsg_id.v).arg(data.vping_id.v));
|
|
|
|
if (!wasSent(data.vmsg_id.v)) {
|
|
DEBUG_LOG(("Message Error: such msg_id %1 ping_id %2 was not sent recently").arg(data.vmsg_id.v).arg(data.vping_id.v));
|
|
return HandleResult::Ignored;
|
|
}
|
|
if (data.vping_id.v == _pingId) {
|
|
_pingId = 0;
|
|
} else {
|
|
DEBUG_LOG(("Message Info: just pong..."));
|
|
}
|
|
|
|
QVector<MTPlong> ids(1, data.vmsg_id);
|
|
if (badTime) {
|
|
if (requestsFixTimeSalt(ids, serverTime, serverSalt)) {
|
|
badTime = false;
|
|
} else {
|
|
return HandleResult::Ignored;
|
|
}
|
|
}
|
|
requestsAcked(ids, true);
|
|
} return HandleResult::Success;
|
|
|
|
}
|
|
|
|
} catch (Exception &) {
|
|
return HandleResult::RestartConnection;
|
|
}
|
|
|
|
if (badTime) {
|
|
DEBUG_LOG(("Message Error: bad time in updates cons, must create new session"));
|
|
return HandleResult::ResetSession;
|
|
}
|
|
|
|
if (_dcType == DcType::Regular) {
|
|
mtpBuffer update(end - from);
|
|
if (end > from) memcpy(update.data(), from, (end - from) * sizeof(mtpPrime));
|
|
|
|
// Notify main process about the new updates.
|
|
QWriteLocker locker(sessionData->haveReceivedMutex());
|
|
sessionData->haveReceivedUpdates().push_back(SerializedMessage(update));
|
|
|
|
if (cons != mtpc_updatesTooLong && cons != mtpc_updateShortMessage && cons != mtpc_updateShortChatMessage && cons != mtpc_updateShortSentMessage && cons != mtpc_updateShort && cons != mtpc_updatesCombined && cons != mtpc_updates) {
|
|
LOG(("Message Error: unknown constructor %1").arg(cons)); // maybe new api?..
|
|
}
|
|
} else {
|
|
LOG(("Message Error: unexpected updates in dcType: %1").arg(static_cast<int>(_dcType)));
|
|
}
|
|
|
|
return HandleResult::Success;
|
|
}
|
|
|
|
mtpBuffer ConnectionPrivate::ungzip(const mtpPrime *from, const mtpPrime *end) const {
|
|
MTPstring packed;
|
|
packed.read(from, end); // read packed string as serialized mtp string type
|
|
uint32 packedLen = packed.v.size(), unpackedChunk = packedLen, unpackedLen = 0;
|
|
|
|
mtpBuffer result; // * 4 because of mtpPrime type
|
|
result.resize(0);
|
|
z_stream stream;
|
|
stream.zalloc = 0;
|
|
stream.zfree = 0;
|
|
stream.opaque = 0;
|
|
stream.avail_in = 0;
|
|
stream.next_in = 0;
|
|
int res = inflateInit2(&stream, 16 + MAX_WBITS);
|
|
if (res != Z_OK) {
|
|
LOG(("RPC Error: could not init zlib stream, code: %1").arg(res));
|
|
return result;
|
|
}
|
|
stream.avail_in = packedLen;
|
|
stream.next_in = reinterpret_cast<Bytef*>(packed.v.data());
|
|
|
|
stream.avail_out = 0;
|
|
while (!stream.avail_out) {
|
|
result.resize(result.size() + unpackedChunk);
|
|
stream.avail_out = unpackedChunk * sizeof(mtpPrime);
|
|
stream.next_out = (Bytef*)&result[result.size() - unpackedChunk];
|
|
int res = inflate(&stream, Z_NO_FLUSH);
|
|
if (res != Z_OK && res != Z_STREAM_END) {
|
|
inflateEnd(&stream);
|
|
LOG(("RPC Error: could not unpack gziped data, code: %1").arg(res));
|
|
DEBUG_LOG(("RPC Error: bad gzip: %1").arg(Logs::mb(packed.v.constData(), packedLen).str()));
|
|
return mtpBuffer();
|
|
}
|
|
}
|
|
if (stream.avail_out & 0x03) {
|
|
uint32 badSize = result.size() * sizeof(mtpPrime) - stream.avail_out;
|
|
LOG(("RPC Error: bad length of unpacked data %1").arg(badSize));
|
|
DEBUG_LOG(("RPC Error: bad unpacked data %1").arg(Logs::mb(result.data(), badSize).str()));
|
|
return mtpBuffer();
|
|
}
|
|
result.resize(result.size() - (stream.avail_out >> 2));
|
|
inflateEnd(&stream);
|
|
if (!result.size()) {
|
|
LOG(("RPC Error: bad length of unpacked data 0"));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
bool ConnectionPrivate::requestsFixTimeSalt(const QVector<MTPlong> &ids, int32 serverTime, uint64 serverSalt) {
|
|
uint32 idsCount = ids.size();
|
|
|
|
for (uint32 i = 0; i < idsCount; ++i) {
|
|
if (wasSent(ids[i].v)) {// found such msg_id in recent acked requests or in recent sent requests
|
|
if (serverSalt) sessionData->setSalt(serverSalt);
|
|
unixtimeSet(serverTime, true);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void ConnectionPrivate::requestsAcked(const QVector<MTPlong> &ids, bool byResponse) {
|
|
uint32 idsCount = ids.size();
|
|
|
|
DEBUG_LOG(("Message Info: requests acked, ids %1").arg(Logs::vector(ids)));
|
|
|
|
RPCCallbackClears clearedAcked;
|
|
QVector<MTPlong> toAckMore;
|
|
{
|
|
QWriteLocker locker1(sessionData->wereAckedMutex());
|
|
mtpRequestIdsMap &wereAcked(sessionData->wereAckedMap());
|
|
|
|
{
|
|
QWriteLocker locker2(sessionData->haveSentMutex());
|
|
mtpRequestMap &haveSent(sessionData->haveSentMap());
|
|
|
|
for (uint32 i = 0; i < idsCount; ++i) {
|
|
mtpMsgId msgId = ids[i].v;
|
|
mtpRequestMap::iterator req = haveSent.find(msgId);
|
|
if (req != haveSent.cend()) {
|
|
if (!req.value()->msDate) {
|
|
DEBUG_LOG(("Message Info: container ack received, msgId %1").arg(ids[i].v));
|
|
uint32 inContCount = ((*req)->size() - 8) / 2;
|
|
const mtpMsgId *inContId = (const mtpMsgId *)(req.value()->constData() + 8);
|
|
toAckMore.reserve(toAckMore.size() + inContCount);
|
|
for (uint32 j = 0; j < inContCount; ++j) {
|
|
toAckMore.push_back(MTP_long(*(inContId++)));
|
|
}
|
|
haveSent.erase(req);
|
|
} else {
|
|
mtpRequestId reqId = req.value()->requestId;
|
|
bool moveToAcked = byResponse;
|
|
if (!moveToAcked) { // ignore ACK, if we need a response (if we have a handler)
|
|
moveToAcked = !_instance->hasCallbacks(reqId);
|
|
}
|
|
if (moveToAcked) {
|
|
wereAcked.insert(msgId, reqId);
|
|
haveSent.erase(req);
|
|
} else {
|
|
DEBUG_LOG(("Message Info: ignoring ACK for msgId %1 because request %2 requires a response").arg(msgId).arg(reqId));
|
|
}
|
|
}
|
|
} else {
|
|
DEBUG_LOG(("Message Info: msgId %1 was not found in recent sent, while acking requests, searching in resend...").arg(msgId));
|
|
QWriteLocker locker3(sessionData->toResendMutex());
|
|
mtpRequestIdsMap &toResend(sessionData->toResendMap());
|
|
mtpRequestIdsMap::iterator reqIt = toResend.find(msgId);
|
|
if (reqIt != toResend.cend()) {
|
|
mtpRequestId reqId = reqIt.value();
|
|
bool moveToAcked = byResponse;
|
|
if (!moveToAcked) { // ignore ACK, if we need a response (if we have a handler)
|
|
moveToAcked = !_instance->hasCallbacks(reqId);
|
|
}
|
|
if (moveToAcked) {
|
|
QWriteLocker locker4(sessionData->toSendMutex());
|
|
mtpPreRequestMap &toSend(sessionData->toSendMap());
|
|
mtpPreRequestMap::iterator req = toSend.find(reqId);
|
|
if (req != toSend.cend()) {
|
|
wereAcked.insert(msgId, req.value()->requestId);
|
|
if (req.value()->requestId != reqId) {
|
|
DEBUG_LOG(("Message Error: for msgId %1 found resent request, requestId %2, contains requestId %3").arg(msgId).arg(reqId).arg(req.value()->requestId));
|
|
} else {
|
|
DEBUG_LOG(("Message Info: acked msgId %1 that was prepared to resend, requestId %2").arg(msgId).arg(reqId));
|
|
}
|
|
toSend.erase(req);
|
|
} else {
|
|
DEBUG_LOG(("Message Info: msgId %1 was found in recent resent, requestId %2 was not found in prepared to send").arg(msgId));
|
|
}
|
|
toResend.erase(reqIt);
|
|
} else {
|
|
DEBUG_LOG(("Message Info: ignoring ACK for msgId %1 because request %2 requires a response").arg(msgId).arg(reqId));
|
|
}
|
|
} else {
|
|
DEBUG_LOG(("Message Info: msgId %1 was not found in recent resent either").arg(msgId));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
uint32 ackedCount = wereAcked.size();
|
|
if (ackedCount > MTPIdsBufferSize) {
|
|
DEBUG_LOG(("Message Info: removing some old acked sent msgIds %1").arg(ackedCount - MTPIdsBufferSize));
|
|
clearedAcked.reserve(ackedCount - MTPIdsBufferSize);
|
|
while (ackedCount-- > MTPIdsBufferSize) {
|
|
mtpRequestIdsMap::iterator i(wereAcked.begin());
|
|
clearedAcked.push_back(RPCCallbackClear(i.key(), RPCError::TimeoutError));
|
|
wereAcked.erase(i);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (clearedAcked.size()) {
|
|
_instance->clearCallbacksDelayed(clearedAcked);
|
|
}
|
|
|
|
if (toAckMore.size()) {
|
|
requestsAcked(toAckMore);
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::handleMsgsStates(const QVector<MTPlong> &ids, const QByteArray &states, QVector<MTPlong> &acked) {
|
|
uint32 idsCount = ids.size();
|
|
if (!idsCount) {
|
|
DEBUG_LOG(("Message Info: void ids vector in handleMsgsStates()"));
|
|
return;
|
|
}
|
|
if (states.size() < idsCount) {
|
|
LOG(("Message Error: got less states than required ids count."));
|
|
return;
|
|
}
|
|
|
|
acked.reserve(acked.size() + idsCount);
|
|
for (uint32 i = 0, count = idsCount; i < count; ++i) {
|
|
char state = states[i];
|
|
uint64 requestMsgId = ids[i].v;
|
|
{
|
|
QReadLocker locker(sessionData->haveSentMutex());
|
|
const mtpRequestMap &haveSent(sessionData->haveSentMap());
|
|
mtpRequestMap::const_iterator haveSentEnd = haveSent.cend();
|
|
if (haveSent.find(requestMsgId) == haveSentEnd) {
|
|
DEBUG_LOG(("Message Info: state was received for msgId %1, but request is not found, looking in resent requests...").arg(requestMsgId));
|
|
QWriteLocker locker2(sessionData->toResendMutex());
|
|
mtpRequestIdsMap &toResend(sessionData->toResendMap());
|
|
mtpRequestIdsMap::iterator reqIt = toResend.find(requestMsgId);
|
|
if (reqIt != toResend.cend()) {
|
|
if ((state & 0x07) != 0x04) { // was received
|
|
DEBUG_LOG(("Message Info: state was received for msgId %1, state %2, already resending in container").arg(requestMsgId).arg((int32)state));
|
|
} else {
|
|
DEBUG_LOG(("Message Info: state was received for msgId %1, state %2, ack, cancelling resend").arg(requestMsgId).arg((int32)state));
|
|
acked.push_back(MTP_long(requestMsgId)); // will remove from resend in requestsAcked
|
|
}
|
|
} else {
|
|
DEBUG_LOG(("Message Info: msgId %1 was not found in recent resent either").arg(requestMsgId));
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
if ((state & 0x07) != 0x04) { // was received
|
|
DEBUG_LOG(("Message Info: state was received for msgId %1, state %2, resending in container").arg(requestMsgId).arg((int32)state));
|
|
resend(requestMsgId, 10, true);
|
|
} else {
|
|
DEBUG_LOG(("Message Info: state was received for msgId %1, state %2, ack").arg(requestMsgId).arg((int32)state));
|
|
acked.push_back(MTP_long(requestMsgId));
|
|
}
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::resend(quint64 msgId, qint64 msCanWait, bool forceContainer, bool sendMsgStateInfo) {
|
|
if (msgId == _pingMsgId) return;
|
|
emit resendAsync(msgId, msCanWait, forceContainer, sendMsgStateInfo);
|
|
}
|
|
|
|
void ConnectionPrivate::resendMany(QVector<quint64> msgIds, qint64 msCanWait, bool forceContainer, bool sendMsgStateInfo) {
|
|
for (int32 i = 0, l = msgIds.size(); i < l; ++i) {
|
|
if (msgIds.at(i) == _pingMsgId) {
|
|
msgIds.remove(i);
|
|
--l;
|
|
}
|
|
}
|
|
emit resendManyAsync(msgIds, msCanWait, forceContainer, sendMsgStateInfo);
|
|
}
|
|
|
|
void ConnectionPrivate::onConnected4() {
|
|
_waitForConnected = MTPMinConnectDelay;
|
|
_waitForConnectedTimer.stop();
|
|
|
|
_waitForIPv4Timer.stop();
|
|
|
|
QReadLocker lockFinished(&sessionDataMutex);
|
|
if (!sessionData) return;
|
|
|
|
disconnect(_conn4, SIGNAL(connected()), this, SLOT(onConnected4()));
|
|
if (!_conn4->isConnected()) {
|
|
LOG(("Connection Error: not connected in onConnected4(), state: %1").arg(_conn4->debugState()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
|
|
_conn = _conn4;
|
|
destroyConn(&_conn6);
|
|
|
|
DEBUG_LOG(("MTP Info: connection through IPv4 succeed."));
|
|
|
|
lockFinished.unlock();
|
|
updateAuthKey();
|
|
}
|
|
|
|
void ConnectionPrivate::onConnected6() {
|
|
_waitForConnected = MTPMinConnectDelay;
|
|
_waitForConnectedTimer.stop();
|
|
|
|
QReadLocker lockFinished(&sessionDataMutex);
|
|
if (!sessionData) return;
|
|
|
|
disconnect(_conn6, SIGNAL(connected()), this, SLOT(onConnected6()));
|
|
if (!_conn6->isConnected()) {
|
|
LOG(("Connection Error: not connected in onConnected(), state: %1").arg(_conn6->debugState()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
|
|
DEBUG_LOG(("MTP Info: connection through IPv6 succeed, waiting IPv4 for %1ms.").arg(MTPIPv4ConnectionWaitTimeout));
|
|
|
|
_waitForIPv4Timer.start(MTPIPv4ConnectionWaitTimeout);
|
|
}
|
|
|
|
void ConnectionPrivate::onDisconnected4() {
|
|
if (_conn && _conn == _conn6) return; // disconnected the unused
|
|
|
|
if (_conn || !_conn6) {
|
|
destroyConn();
|
|
restart();
|
|
} else {
|
|
destroyConn(&_conn4);
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::onDisconnected6() {
|
|
if (_conn && _conn == _conn4) return; // disconnected the unused
|
|
|
|
if (_conn || !_conn4) {
|
|
destroyConn();
|
|
restart();
|
|
} else {
|
|
destroyConn(&_conn6);
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::updateAuthKey() {
|
|
QReadLocker lockFinished(&sessionDataMutex);
|
|
if (!sessionData || !_conn) return;
|
|
|
|
DEBUG_LOG(("AuthKey Info: Connection updating key from Session, dc %1").arg(_shiftedDcId));
|
|
uint64 newKeyId = 0;
|
|
{
|
|
ReadLockerAttempt lock(sessionData->keyMutex());
|
|
if (!lock) {
|
|
DEBUG_LOG(("MTP Info: could not lock auth_key for read, waiting signal emit"));
|
|
clearMessages();
|
|
keyId = newKeyId;
|
|
return; // some other connection is getting key
|
|
}
|
|
auto key = sessionData->getKey();
|
|
newKeyId = key ? key->keyId() : 0;
|
|
}
|
|
if (keyId != newKeyId) {
|
|
clearMessages();
|
|
keyId = newKeyId;
|
|
}
|
|
DEBUG_LOG(("AuthKey Info: Connection update key from Session, dc %1 result: %2").arg(_shiftedDcId).arg(Logs::mb(&keyId, sizeof(keyId)).str()));
|
|
if (keyId) {
|
|
return authKeyCreated();
|
|
}
|
|
|
|
DEBUG_LOG(("AuthKey Info: No key in updateAuthKey(), will be creating auth_key"));
|
|
lockKey();
|
|
|
|
const AuthKeyPtr &key(sessionData->getKey());
|
|
if (key) {
|
|
if (keyId != key->keyId()) clearMessages();
|
|
keyId = key->keyId();
|
|
unlockKey();
|
|
return authKeyCreated();
|
|
} else if (_instance->isKeysDestroyer()) {
|
|
// We are here to destroy an old key, so we're done.
|
|
LOG(("MTP Error: No key %1 in updateAuthKey() for destroying.").arg(_shiftedDcId));
|
|
emit _instance->keyDestroyed(_shiftedDcId);
|
|
return;
|
|
}
|
|
|
|
_authKeyData = std::make_unique<ConnectionPrivate::AuthKeyCreateData>();
|
|
_authKeyStrings = std::make_unique<ConnectionPrivate::AuthKeyCreateStrings>();
|
|
_authKeyData->req_num = 0;
|
|
_authKeyData->nonce = rand_value<MTPint128>();
|
|
|
|
MTPReq_pq req_pq;
|
|
req_pq.vnonce = _authKeyData->nonce;
|
|
|
|
connect(_conn, SIGNAL(receivedData()), this, SLOT(pqAnswered()));
|
|
|
|
DEBUG_LOG(("AuthKey Info: sending Req_pq..."));
|
|
lockFinished.unlock();
|
|
sendRequestNotSecure(req_pq);
|
|
}
|
|
|
|
void ConnectionPrivate::clearMessages() {
|
|
if (keyId && keyId != kRecreateKeyId && _conn) {
|
|
_conn->received().clear();
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::pqAnswered() {
|
|
disconnect(_conn, SIGNAL(receivedData()), this, SLOT(pqAnswered()));
|
|
DEBUG_LOG(("AuthKey Info: receiving Req_pq answer..."));
|
|
|
|
MTPReq_pq::ResponseType res_pq;
|
|
if (!readResponseNotSecure(res_pq)) {
|
|
return restart();
|
|
}
|
|
|
|
auto &res_pq_data = res_pq.c_resPQ();
|
|
if (res_pq_data.vnonce != _authKeyData->nonce) {
|
|
LOG(("AuthKey Error: received nonce <> sent nonce (in res_pq)!"));
|
|
DEBUG_LOG(("AuthKey Error: received nonce: %1, sent nonce: %2").arg(Logs::mb(&res_pq_data.vnonce, 16).str()).arg(Logs::mb(&_authKeyData->nonce, 16).str()));
|
|
return restart();
|
|
}
|
|
|
|
auto rsaKey = internal::RSAPublicKey();
|
|
if (!Messenger::Instance().dcOptions()->getDcRSAKey(bareDcId(_shiftedDcId), res_pq.c_resPQ().vserver_public_key_fingerprints.v, &rsaKey)) {
|
|
if (_dcType == DcType::Cdn) {
|
|
LOG(("Warning: CDN public RSA key not found"));
|
|
requestCDNConfig();
|
|
return;
|
|
}
|
|
LOG(("AuthKey Error: could not choose public RSA key"));
|
|
return restart();
|
|
}
|
|
t_assert(rsaKey.isValid());
|
|
|
|
_authKeyData->server_nonce = res_pq_data.vserver_nonce;
|
|
_authKeyData->new_nonce = rand_value<MTPint256>();
|
|
|
|
auto &pq = res_pq_data.vpq.v;
|
|
auto p = QByteArray();
|
|
auto q = QByteArray();
|
|
if (!MTP::internal::parsePQ(pq, p, q)) {
|
|
LOG(("AuthKey Error: could not factor pq!"));
|
|
DEBUG_LOG(("AuthKey Error: problematic pq: %1").arg(Logs::mb(pq.constData(), pq.length()).str()));
|
|
return restart();
|
|
}
|
|
|
|
auto p_q_inner = MTP_p_q_inner_data(res_pq_data.vpq, MTP_bytes(std::move(p)), MTP_bytes(std::move(q)), _authKeyData->nonce, _authKeyData->server_nonce, _authKeyData->new_nonce);
|
|
auto dhEncString = encryptPQInnerRSA(p_q_inner, rsaKey);
|
|
if (dhEncString.empty()) {
|
|
return restart();
|
|
}
|
|
|
|
connect(_conn, SIGNAL(receivedData()), this, SLOT(dhParamsAnswered()));
|
|
|
|
DEBUG_LOG(("AuthKey Info: sending Req_DH_params..."));
|
|
|
|
MTPReq_DH_params req_DH_params;
|
|
req_DH_params.vnonce = _authKeyData->nonce;
|
|
req_DH_params.vserver_nonce = _authKeyData->server_nonce;
|
|
req_DH_params.vpublic_key_fingerprint = MTP_long(rsaKey.getFingerPrint());
|
|
req_DH_params.vp = p_q_inner.c_p_q_inner_data().vp;
|
|
req_DH_params.vq = p_q_inner.c_p_q_inner_data().vq;
|
|
req_DH_params.vencrypted_data = MTP_bytes(dhEncString);
|
|
sendRequestNotSecure(req_DH_params);
|
|
}
|
|
|
|
base::byte_vector ConnectionPrivate::encryptPQInnerRSA(const MTPP_Q_inner_data &data, const MTP::internal::RSAPublicKey &key) {
|
|
auto p_q_inner_size = data.innerLength();
|
|
auto encSize = (p_q_inner_size >> 2) + 6;
|
|
if (encSize >= 65) {
|
|
auto tmp = mtpBuffer();
|
|
tmp.reserve(encSize);
|
|
data.write(tmp);
|
|
LOG(("AuthKey Error: too large data for RSA encrypt, size %1").arg(encSize * sizeof(mtpPrime)));
|
|
DEBUG_LOG(("AuthKey Error: bad data for RSA encrypt %1").arg(Logs::mb(&tmp[0], tmp.size() * 4).str()));
|
|
return base::byte_vector(); // can't be 255-byte string
|
|
}
|
|
|
|
auto encBuffer = mtpBuffer();
|
|
encBuffer.reserve(65); // 260 bytes
|
|
encBuffer.resize(6);
|
|
encBuffer[0] = 0;
|
|
data.write(encBuffer);
|
|
|
|
hashSha1(&encBuffer[6], p_q_inner_size, &encBuffer[1]);
|
|
if (encSize < 65) {
|
|
encBuffer.resize(65);
|
|
memset_rand(&encBuffer[encSize], (65 - encSize) * sizeof(mtpPrime));
|
|
}
|
|
|
|
auto bytes = gsl::as_bytes(gsl::make_span(encBuffer));
|
|
auto bytesToEncrypt = bytes.subspan(3, 256);
|
|
return key.encrypt(bytesToEncrypt);
|
|
}
|
|
|
|
void ConnectionPrivate::dhParamsAnswered() {
|
|
disconnect(_conn, SIGNAL(receivedData()), this, SLOT(dhParamsAnswered()));
|
|
DEBUG_LOG(("AuthKey Info: receiving Req_DH_params answer..."));
|
|
|
|
MTPReq_DH_params::ResponseType res_DH_params;
|
|
if (!readResponseNotSecure(res_DH_params)) {
|
|
return restart();
|
|
}
|
|
|
|
switch (res_DH_params.type()) {
|
|
case mtpc_server_DH_params_ok: {
|
|
const auto &encDH(res_DH_params.c_server_DH_params_ok());
|
|
if (encDH.vnonce != _authKeyData->nonce) {
|
|
LOG(("AuthKey Error: received nonce <> sent nonce (in server_DH_params_ok)!"));
|
|
DEBUG_LOG(("AuthKey Error: received nonce: %1, sent nonce: %2").arg(Logs::mb(&encDH.vnonce, 16).str()).arg(Logs::mb(&_authKeyData->nonce, 16).str()));
|
|
return restart();
|
|
}
|
|
if (encDH.vserver_nonce != _authKeyData->server_nonce) {
|
|
LOG(("AuthKey Error: received server_nonce <> sent server_nonce (in server_DH_params_ok)!"));
|
|
DEBUG_LOG(("AuthKey Error: received server_nonce: %1, sent server_nonce: %2").arg(Logs::mb(&encDH.vserver_nonce, 16).str()).arg(Logs::mb(&_authKeyData->server_nonce, 16).str()));
|
|
return restart();
|
|
}
|
|
|
|
auto &encDHStr = encDH.vencrypted_answer.v;
|
|
uint32 encDHLen = encDHStr.length(), encDHBufLen = encDHLen >> 2;
|
|
if ((encDHLen & 0x03) || encDHBufLen < 6) {
|
|
LOG(("AuthKey Error: bad encrypted data length %1 (in server_DH_params_ok)!").arg(encDHLen));
|
|
DEBUG_LOG(("AuthKey Error: received encrypted data %1").arg(Logs::mb(encDHStr.constData(), encDHLen).str()));
|
|
return restart();
|
|
}
|
|
|
|
uint32 nlen = _authKeyData->new_nonce.innerLength(), slen = _authKeyData->server_nonce.innerLength();
|
|
uchar tmp_aes[1024], sha1ns[20], sha1sn[20], sha1nn[20];
|
|
memcpy(tmp_aes, &_authKeyData->new_nonce, nlen);
|
|
memcpy(tmp_aes + nlen, &_authKeyData->server_nonce, slen);
|
|
memcpy(tmp_aes + nlen + slen, &_authKeyData->new_nonce, nlen);
|
|
memcpy(tmp_aes + nlen + slen + nlen, &_authKeyData->new_nonce, nlen);
|
|
hashSha1(tmp_aes, nlen + slen, sha1ns);
|
|
hashSha1(tmp_aes + nlen, nlen + slen, sha1sn);
|
|
hashSha1(tmp_aes + nlen + slen, nlen + nlen, sha1nn);
|
|
|
|
mtpBuffer decBuffer;
|
|
decBuffer.resize(encDHBufLen);
|
|
|
|
memcpy(_authKeyData->aesKey, sha1ns, 20);
|
|
memcpy(_authKeyData->aesKey + 20, sha1sn, 12);
|
|
memcpy(_authKeyData->aesIV, sha1sn + 12, 8);
|
|
memcpy(_authKeyData->aesIV + 8, sha1nn, 20);
|
|
memcpy(_authKeyData->aesIV + 28, &_authKeyData->new_nonce, 4);
|
|
|
|
aesIgeDecrypt(encDHStr.constData(), &decBuffer[0], encDHLen, _authKeyData->aesKey, _authKeyData->aesIV);
|
|
|
|
const mtpPrime *from(&decBuffer[5]), *to(from), *end(from + (encDHBufLen - 5));
|
|
MTPServer_DH_inner_data dh_inner;
|
|
dh_inner.read(to, end);
|
|
const auto &dh_inner_data(dh_inner.c_server_DH_inner_data());
|
|
if (dh_inner_data.vnonce != _authKeyData->nonce) {
|
|
LOG(("AuthKey Error: received nonce <> sent nonce (in server_DH_inner_data)!"));
|
|
DEBUG_LOG(("AuthKey Error: received nonce: %1, sent nonce: %2").arg(Logs::mb(&dh_inner_data.vnonce, 16).str()).arg(Logs::mb(&_authKeyData->nonce, 16).str()));
|
|
return restart();
|
|
}
|
|
if (dh_inner_data.vserver_nonce != _authKeyData->server_nonce) {
|
|
LOG(("AuthKey Error: received server_nonce <> sent server_nonce (in server_DH_inner_data)!"));
|
|
DEBUG_LOG(("AuthKey Error: received server_nonce: %1, sent server_nonce: %2").arg(Logs::mb(&dh_inner_data.vserver_nonce, 16).str()).arg(Logs::mb(&_authKeyData->server_nonce, 16).str()));
|
|
return restart();
|
|
}
|
|
uchar sha1Buffer[20];
|
|
if (memcmp(&decBuffer[0], hashSha1(&decBuffer[5], (to - from) * sizeof(mtpPrime), sha1Buffer), 20)) {
|
|
LOG(("AuthKey Error: sha1 hash of encrypted part did not match!"));
|
|
DEBUG_LOG(("AuthKey Error: sha1 did not match, server_nonce: %1, new_nonce %2, encrypted data %3").arg(Logs::mb(&_authKeyData->server_nonce, 16).str()).arg(Logs::mb(&_authKeyData->new_nonce, 16).str()).arg(Logs::mb(encDHStr.constData(), encDHLen).str()));
|
|
return restart();
|
|
}
|
|
unixtimeSet(dh_inner_data.vserver_time.v);
|
|
|
|
// check that dhPrime and (dhPrime - 1) / 2 are really prime
|
|
if (!IsPrimeAndGood(bytesFromMTP(dh_inner_data.vdh_prime), dh_inner_data.vg.v)) {
|
|
LOG(("AuthKey Error: bad dh_prime primality!"));
|
|
return restart();
|
|
}
|
|
|
|
_authKeyStrings->dh_prime = byteVectorFromMTP(dh_inner_data.vdh_prime);
|
|
_authKeyData->g = dh_inner_data.vg.v;
|
|
_authKeyStrings->g_a = byteVectorFromMTP(dh_inner_data.vg_a);
|
|
_authKeyData->retry_id = MTP_long(0);
|
|
_authKeyData->retries = 0;
|
|
} return dhClientParamsSend();
|
|
|
|
case mtpc_server_DH_params_fail: {
|
|
const auto &encDH(res_DH_params.c_server_DH_params_fail());
|
|
if (encDH.vnonce != _authKeyData->nonce) {
|
|
LOG(("AuthKey Error: received nonce <> sent nonce (in server_DH_params_fail)!"));
|
|
DEBUG_LOG(("AuthKey Error: received nonce: %1, sent nonce: %2").arg(Logs::mb(&encDH.vnonce, 16).str()).arg(Logs::mb(&_authKeyData->nonce, 16).str()));
|
|
return restart();
|
|
}
|
|
if (encDH.vserver_nonce != _authKeyData->server_nonce) {
|
|
LOG(("AuthKey Error: received server_nonce <> sent server_nonce (in server_DH_params_fail)!"));
|
|
DEBUG_LOG(("AuthKey Error: received server_nonce: %1, sent server_nonce: %2").arg(Logs::mb(&encDH.vserver_nonce, 16).str()).arg(Logs::mb(&_authKeyData->server_nonce, 16).str()));
|
|
return restart();
|
|
}
|
|
uchar sha1Buffer[20];
|
|
if (encDH.vnew_nonce_hash != *(MTPint128*)(hashSha1(&_authKeyData->new_nonce, 32, sha1Buffer) + 1)) {
|
|
LOG(("AuthKey Error: received new_nonce_hash did not match!"));
|
|
DEBUG_LOG(("AuthKey Error: received new_nonce_hash: %1, new_nonce: %2").arg(Logs::mb(&encDH.vnew_nonce_hash, 16).str()).arg(Logs::mb(&_authKeyData->new_nonce, 32).str()));
|
|
return restart();
|
|
}
|
|
LOG(("AuthKey Error: server_DH_params_fail received!"));
|
|
} return restart();
|
|
|
|
}
|
|
LOG(("AuthKey Error: unknown server_DH_params received, typeId = %1").arg(res_DH_params.type()));
|
|
return restart();
|
|
}
|
|
|
|
void ConnectionPrivate::dhClientParamsSend() {
|
|
if (++_authKeyData->retries > 5) {
|
|
LOG(("AuthKey Error: could not create auth_key for %1 retries").arg(_authKeyData->retries - 1));
|
|
return restart();
|
|
}
|
|
|
|
// gen rand 'b'
|
|
auto randomSeed = std::array<gsl::byte, ModExpFirst::kRandomPowerSize>();
|
|
openssl::FillRandom(randomSeed);
|
|
auto g_b_data = CreateModExp(_authKeyData->g, _authKeyStrings->dh_prime, randomSeed);
|
|
if (g_b_data.modexp.empty()) {
|
|
LOG(("AuthKey Error: could not generate good g_b."));
|
|
return restart();
|
|
}
|
|
|
|
auto computedAuthKey = CreateAuthKey(_authKeyStrings->g_a, g_b_data.randomPower, _authKeyStrings->dh_prime);
|
|
if (computedAuthKey.empty()) {
|
|
LOG(("AuthKey Error: could not generate auth_key."));
|
|
return restart();
|
|
}
|
|
AuthKey::FillData(_authKeyStrings->auth_key, computedAuthKey);
|
|
|
|
// count auth_key hashes - parts of sha1(auth_key)
|
|
auto auth_key_sha = hashSha1(_authKeyStrings->auth_key.data(), _authKeyStrings->auth_key.size());
|
|
memcpy(&_authKeyData->auth_key_aux_hash, auth_key_sha.data(), 8);
|
|
memcpy(&_authKeyData->auth_key_hash, auth_key_sha.data() + 12, 8);
|
|
|
|
auto client_dh_inner = MTP_client_DH_inner_data(_authKeyData->nonce, _authKeyData->server_nonce, _authKeyData->retry_id, MTP_bytes(g_b_data.modexp));
|
|
|
|
auto sdhEncString = encryptClientDHInner(client_dh_inner);
|
|
|
|
connect(_conn, SIGNAL(receivedData()), this, SLOT(dhClientParamsAnswered()));
|
|
|
|
MTPSet_client_DH_params req_client_DH_params;
|
|
req_client_DH_params.vnonce = _authKeyData->nonce;
|
|
req_client_DH_params.vserver_nonce = _authKeyData->server_nonce;
|
|
req_client_DH_params.vencrypted_data = MTP_string(std::move(sdhEncString));
|
|
|
|
DEBUG_LOG(("AuthKey Info: sending Req_client_DH_params..."));
|
|
sendRequestNotSecure(req_client_DH_params);
|
|
}
|
|
|
|
std::string ConnectionPrivate::encryptClientDHInner(const MTPClient_DH_Inner_Data &data) {
|
|
auto client_dh_inner_size = data.innerLength();
|
|
auto encSize = (client_dh_inner_size >> 2) + 5;
|
|
auto encFullSize = encSize;
|
|
if (encSize & 0x03) {
|
|
encFullSize += 4 - (encSize & 0x03);
|
|
}
|
|
|
|
auto encBuffer = mtpBuffer();
|
|
encBuffer.reserve(encFullSize);
|
|
encBuffer.resize(5);
|
|
data.write(encBuffer);
|
|
|
|
hashSha1(&encBuffer[5], client_dh_inner_size, &encBuffer[0]);
|
|
if (encSize < encFullSize) {
|
|
encBuffer.resize(encFullSize);
|
|
memset_rand(&encBuffer[encSize], (encFullSize - encSize) * sizeof(mtpPrime));
|
|
}
|
|
|
|
auto sdhEncString = std::string(encFullSize * 4, ' ');
|
|
|
|
aesIgeEncrypt(&encBuffer[0], &sdhEncString[0], encFullSize * sizeof(mtpPrime), _authKeyData->aesKey, _authKeyData->aesIV);
|
|
|
|
return sdhEncString;
|
|
}
|
|
|
|
void ConnectionPrivate::dhClientParamsAnswered() {
|
|
QReadLocker lockFinished(&sessionDataMutex);
|
|
if (!sessionData) return;
|
|
|
|
disconnect(_conn, SIGNAL(receivedData()), this, SLOT(dhClientParamsAnswered()));
|
|
DEBUG_LOG(("AuthKey Info: receiving Req_client_DH_params answer..."));
|
|
|
|
MTPSet_client_DH_params::ResponseType res_client_DH_params;
|
|
if (!readResponseNotSecure(res_client_DH_params)) {
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
|
|
switch (res_client_DH_params.type()) {
|
|
case mtpc_dh_gen_ok: {
|
|
const auto &resDH(res_client_DH_params.c_dh_gen_ok());
|
|
if (resDH.vnonce != _authKeyData->nonce) {
|
|
LOG(("AuthKey Error: received nonce <> sent nonce (in dh_gen_ok)!"));
|
|
DEBUG_LOG(("AuthKey Error: received nonce: %1, sent nonce: %2").arg(Logs::mb(&resDH.vnonce, 16).str()).arg(Logs::mb(&_authKeyData->nonce, 16).str()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
if (resDH.vserver_nonce != _authKeyData->server_nonce) {
|
|
LOG(("AuthKey Error: received server_nonce <> sent server_nonce (in dh_gen_ok)!"));
|
|
DEBUG_LOG(("AuthKey Error: received server_nonce: %1, sent server_nonce: %2").arg(Logs::mb(&resDH.vserver_nonce, 16).str()).arg(Logs::mb(&_authKeyData->server_nonce, 16).str()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
_authKeyData->new_nonce_buf[32] = 1;
|
|
uchar sha1Buffer[20];
|
|
if (resDH.vnew_nonce_hash1 != *(MTPint128*)(hashSha1(_authKeyData->new_nonce_buf, 41, sha1Buffer) + 1)) {
|
|
LOG(("AuthKey Error: received new_nonce_hash1 did not match!"));
|
|
DEBUG_LOG(("AuthKey Error: received new_nonce_hash1: %1, new_nonce_buf: %2").arg(Logs::mb(&resDH.vnew_nonce_hash1, 16).str()).arg(Logs::mb(_authKeyData->new_nonce_buf, 41).str()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
|
|
uint64 salt1 = _authKeyData->new_nonce.l.l, salt2 = _authKeyData->server_nonce.l, serverSalt = salt1 ^ salt2;
|
|
sessionData->setSalt(serverSalt);
|
|
|
|
auto authKey = std::make_shared<AuthKey>(AuthKey::Type::Generated, bareDcId(_shiftedDcId), _authKeyStrings->auth_key);
|
|
|
|
DEBUG_LOG(("AuthKey Info: auth key gen succeed, id: %1, server salt: %2").arg(authKey->keyId()).arg(serverSalt));
|
|
|
|
sessionData->owner()->notifyKeyCreated(std::move(authKey)); // slot will call authKeyCreated()
|
|
sessionData->clear(_instance);
|
|
unlockKey();
|
|
} return;
|
|
|
|
case mtpc_dh_gen_retry: {
|
|
const auto &resDH(res_client_DH_params.c_dh_gen_retry());
|
|
if (resDH.vnonce != _authKeyData->nonce) {
|
|
LOG(("AuthKey Error: received nonce <> sent nonce (in dh_gen_retry)!"));
|
|
DEBUG_LOG(("AuthKey Error: received nonce: %1, sent nonce: %2").arg(Logs::mb(&resDH.vnonce, 16).str()).arg(Logs::mb(&_authKeyData->nonce, 16).str()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
if (resDH.vserver_nonce != _authKeyData->server_nonce) {
|
|
LOG(("AuthKey Error: received server_nonce <> sent server_nonce (in dh_gen_retry)!"));
|
|
DEBUG_LOG(("AuthKey Error: received server_nonce: %1, sent server_nonce: %2").arg(Logs::mb(&resDH.vserver_nonce, 16).str()).arg(Logs::mb(&_authKeyData->server_nonce, 16).str()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
_authKeyData->new_nonce_buf[32] = 2;
|
|
uchar sha1Buffer[20];
|
|
if (resDH.vnew_nonce_hash2 != *(MTPint128*)(hashSha1(_authKeyData->new_nonce_buf, 41, sha1Buffer) + 1)) {
|
|
LOG(("AuthKey Error: received new_nonce_hash2 did not match!"));
|
|
DEBUG_LOG(("AuthKey Error: received new_nonce_hash2: %1, new_nonce_buf: %2").arg(Logs::mb(&resDH.vnew_nonce_hash2, 16).str()).arg(Logs::mb(_authKeyData->new_nonce_buf, 41).str()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
_authKeyData->retry_id = _authKeyData->auth_key_aux_hash;
|
|
} return dhClientParamsSend();
|
|
|
|
case mtpc_dh_gen_fail: {
|
|
const auto &resDH(res_client_DH_params.c_dh_gen_fail());
|
|
if (resDH.vnonce != _authKeyData->nonce) {
|
|
LOG(("AuthKey Error: received nonce <> sent nonce (in dh_gen_fail)!"));
|
|
DEBUG_LOG(("AuthKey Error: received nonce: %1, sent nonce: %2").arg(Logs::mb(&resDH.vnonce, 16).str()).arg(Logs::mb(&_authKeyData->nonce, 16).str()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
if (resDH.vserver_nonce != _authKeyData->server_nonce) {
|
|
LOG(("AuthKey Error: received server_nonce <> sent server_nonce (in dh_gen_fail)!"));
|
|
DEBUG_LOG(("AuthKey Error: received server_nonce: %1, sent server_nonce: %2").arg(Logs::mb(&resDH.vserver_nonce, 16).str()).arg(Logs::mb(&_authKeyData->server_nonce, 16).str()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
_authKeyData->new_nonce_buf[32] = 3;
|
|
uchar sha1Buffer[20];
|
|
if (resDH.vnew_nonce_hash3 != *(MTPint128*)(hashSha1(_authKeyData->new_nonce_buf, 41, sha1Buffer) + 1)) {
|
|
LOG(("AuthKey Error: received new_nonce_hash3 did not match!"));
|
|
DEBUG_LOG(("AuthKey Error: received new_nonce_hash3: %1, new_nonce_buf: %2").arg(Logs::mb(&resDH.vnew_nonce_hash3, 16).str()).arg(Logs::mb(_authKeyData->new_nonce_buf, 41).str()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
LOG(("AuthKey Error: dh_gen_fail received!"));
|
|
}
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
|
|
}
|
|
LOG(("AuthKey Error: unknown set_client_DH_params_answer received, typeId = %1").arg(res_client_DH_params.type()));
|
|
|
|
lockFinished.unlock();
|
|
return restart();
|
|
}
|
|
|
|
void ConnectionPrivate::authKeyCreated() {
|
|
clearAuthKeyData();
|
|
|
|
connect(_conn, SIGNAL(receivedData()), this, SLOT(handleReceived()));
|
|
|
|
if (sessionData->getSalt()) { // else receive salt in bad_server_salt first, then try to send all the requests
|
|
setState(ConnectedState);
|
|
if (restarted) {
|
|
emit resendAllAsync();
|
|
restarted = false;
|
|
}
|
|
}
|
|
|
|
_pingIdToSend = rand_value<uint64>(); // get server_salt
|
|
|
|
emit needToSendAsync();
|
|
}
|
|
|
|
void ConnectionPrivate::clearAuthKeyData() {
|
|
auto zeroMemory = [](base::byte_span bytes) {
|
|
#ifdef Q_OS_WIN2
|
|
SecureZeroMemory(bytes.data(), bytes.size());
|
|
#else // Q_OS_WIN
|
|
auto end = reinterpret_cast<char*>(bytes.data()) + bytes.size();
|
|
for (volatile auto p = reinterpret_cast<volatile char*>(bytes.data()); p != end; ++p) {
|
|
*p = 0;
|
|
}
|
|
#endif // Q_OS_WIN
|
|
};
|
|
if (_authKeyData) {
|
|
zeroMemory(gsl::make_span(reinterpret_cast<gsl::byte*>(_authKeyData.get()), sizeof(AuthKeyCreateData)));
|
|
_authKeyData.reset();
|
|
}
|
|
if (_authKeyStrings) {
|
|
if (!_authKeyStrings->dh_prime.empty()) {
|
|
zeroMemory(_authKeyStrings->dh_prime);
|
|
}
|
|
if (!_authKeyStrings->g_a.empty()) {
|
|
zeroMemory(_authKeyStrings->g_a);
|
|
}
|
|
zeroMemory(_authKeyStrings->auth_key);
|
|
_authKeyStrings.reset();
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::onError4(qint32 errorCode) {
|
|
if (_conn && _conn == _conn6) return; // error in the unused
|
|
|
|
if (errorCode == -429) {
|
|
LOG(("Protocol Error: -429 flood code returned!"));
|
|
}
|
|
if (_conn || !_conn6) {
|
|
handleError(errorCode);
|
|
} else {
|
|
destroyConn(&_conn4);
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::onError6(qint32 errorCode) {
|
|
if (_conn && _conn == _conn4) return; // error in the unused
|
|
|
|
if (errorCode == -429) {
|
|
LOG(("Protocol Error: -429 flood code returned!"));
|
|
}
|
|
if (_conn || !_conn4) {
|
|
handleError(errorCode);
|
|
} else {
|
|
destroyConn(&_conn6);
|
|
}
|
|
}
|
|
|
|
void ConnectionPrivate::handleError(int errorCode) {
|
|
destroyConn();
|
|
_waitForConnectedTimer.stop();
|
|
|
|
if (errorCode == -404) {
|
|
if (_instance->isKeysDestroyer()) {
|
|
LOG(("MTP Info: -404 error received on destroying key %1, assuming it is destroyed.").arg(_shiftedDcId));
|
|
emit _instance->keyDestroyed(_shiftedDcId);
|
|
return;
|
|
} else if (_dcType == DcType::Cdn) {
|
|
LOG(("MTP Info: -404 error received in CDN dc %1, assuming it was destroyed, recreating.").arg(_shiftedDcId));
|
|
clearMessages();
|
|
keyId = kRecreateKeyId;
|
|
return restart();
|
|
}
|
|
}
|
|
MTP_LOG(_shiftedDcId, ("Restarting after error in connection, error code: %1...").arg(errorCode));
|
|
return restart();
|
|
}
|
|
|
|
void ConnectionPrivate::onReadyData() {
|
|
}
|
|
|
|
template <typename TRequest>
|
|
void ConnectionPrivate::sendRequestNotSecure(const TRequest &request) {
|
|
try {
|
|
mtpBuffer buffer;
|
|
uint32 requestSize = request.innerLength() >> 2;
|
|
|
|
buffer.resize(0);
|
|
buffer.reserve(8 + requestSize);
|
|
buffer.push_back(0); // tcp packet len
|
|
buffer.push_back(0); // tcp packet num
|
|
buffer.push_back(0);
|
|
buffer.push_back(0);
|
|
buffer.push_back(_authKeyData->req_num);
|
|
buffer.push_back(unixtime());
|
|
buffer.push_back(requestSize * 4);
|
|
request.write(buffer);
|
|
buffer.push_back(0); // tcp crc32 hash
|
|
++_authKeyData->msgs_sent;
|
|
|
|
DEBUG_LOG(("AuthKey Info: sending request, size: %1, num: %2, time: %3").arg(requestSize).arg(_authKeyData->req_num).arg(buffer[5]));
|
|
|
|
_conn->sendData(buffer);
|
|
|
|
onSentSome(buffer.size() * sizeof(mtpPrime));
|
|
|
|
} catch (Exception &) {
|
|
return restart();
|
|
}
|
|
}
|
|
|
|
template <typename TResponse>
|
|
bool ConnectionPrivate::readResponseNotSecure(TResponse &response) {
|
|
onReceivedSome();
|
|
|
|
try {
|
|
if (_conn->received().empty()) {
|
|
LOG(("AuthKey Error: trying to read response from empty received list"));
|
|
return false;
|
|
}
|
|
|
|
auto buffer = std::move(_conn->received().front());
|
|
_conn->received().pop_front();
|
|
|
|
auto answer = buffer.constData();
|
|
auto len = buffer.size();
|
|
if (len < 5) {
|
|
LOG(("AuthKey Error: bad request answer, len = %1").arg(len * sizeof(mtpPrime)));
|
|
DEBUG_LOG(("AuthKey Error: answer bytes %1").arg(Logs::mb(answer, len * sizeof(mtpPrime)).str()));
|
|
return false;
|
|
}
|
|
if (answer[0] != 0 || answer[1] != 0 || (((uint32)answer[2]) & 0x03) != 1/* || (unixtime() - answer[3] > 300) || (answer[3] - unixtime() > 60)*/) { // didnt sync time yet
|
|
LOG(("AuthKey Error: bad request answer start (%1 %2 %3)").arg(answer[0]).arg(answer[1]).arg(answer[2]));
|
|
DEBUG_LOG(("AuthKey Error: answer bytes %1").arg(Logs::mb(answer, len * sizeof(mtpPrime)).str()));
|
|
return false;
|
|
}
|
|
uint32 answerLen = (uint32)answer[4];
|
|
if (answerLen != (len - 5) * sizeof(mtpPrime)) {
|
|
LOG(("AuthKey Error: bad request answer %1 <> %2").arg(answerLen).arg((len - 5) * sizeof(mtpPrime)));
|
|
DEBUG_LOG(("AuthKey Error: answer bytes %1").arg(Logs::mb(answer, len * sizeof(mtpPrime)).str()));
|
|
return false;
|
|
}
|
|
const mtpPrime *from(answer + 5), *end(from + len - 5);
|
|
response.read(from, end);
|
|
} catch (Exception &) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool ConnectionPrivate::sendRequest(mtpRequest &request, bool needAnyResponse, QReadLocker &lockFinished) {
|
|
uint32 fullSize = request->size();
|
|
if (fullSize < 9) return false;
|
|
|
|
uint32 messageSize = mtpRequestData::messageSize(request);
|
|
if (messageSize < 5 || fullSize < messageSize + 4) return false;
|
|
|
|
ReadLockerAttempt lock(sessionData->keyMutex());
|
|
if (!lock) {
|
|
DEBUG_LOG(("MTP Info: could not lock key for read in sendBuffer(), dc %1, restarting...").arg(_shiftedDcId));
|
|
|
|
lockFinished.unlock();
|
|
restart();
|
|
return false;
|
|
}
|
|
|
|
AuthKeyPtr key(sessionData->getKey());
|
|
if (!key || key->keyId() != keyId) {
|
|
DEBUG_LOG(("MTP Error: auth_key id for dc %1 changed").arg(_shiftedDcId));
|
|
|
|
lockFinished.unlock();
|
|
restart();
|
|
return false;
|
|
}
|
|
|
|
uint32 padding = fullSize - 4 - messageSize;
|
|
uint64 session(sessionData->getSession()), salt(sessionData->getSalt());
|
|
|
|
memcpy(request->data() + 0, &salt, 2 * sizeof(mtpPrime));
|
|
memcpy(request->data() + 2, &session, 2 * sizeof(mtpPrime));
|
|
|
|
const mtpPrime *from = request->constData() + 4;
|
|
MTP_LOG(_shiftedDcId, ("Send: ") + mtpTextSerialize(from, from + messageSize));
|
|
|
|
uchar encryptedSHA[20];
|
|
MTPint128 &msgKey(*(MTPint128*)(encryptedSHA + 4));
|
|
hashSha1(request->constData(), (fullSize - padding) * sizeof(mtpPrime), encryptedSHA);
|
|
|
|
mtpBuffer result;
|
|
result.resize(9 + fullSize);
|
|
*((uint64*)&result[2]) = keyId;
|
|
*((MTPint128*)&result[4]) = msgKey;
|
|
|
|
aesIgeEncrypt(request->constData(), &result[8], fullSize * sizeof(mtpPrime), key, msgKey);
|
|
|
|
DEBUG_LOG(("MTP Info: sending request, size: %1, num: %2, time: %3").arg(fullSize + 6).arg((*request)[4]).arg((*request)[5]));
|
|
|
|
_conn->setSentEncrypted();
|
|
_conn->sendData(result);
|
|
|
|
if (needAnyResponse) {
|
|
onSentSome(result.size() * sizeof(mtpPrime));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
mtpRequestId ConnectionPrivate::wasSent(mtpMsgId msgId) const {
|
|
if (msgId == _pingMsgId) return mtpRequestId(0xFFFFFFFF);
|
|
{
|
|
QReadLocker locker(sessionData->haveSentMutex());
|
|
const mtpRequestMap &haveSent(sessionData->haveSentMap());
|
|
mtpRequestMap::const_iterator i = haveSent.constFind(msgId);
|
|
if (i != haveSent.cend()) return i.value()->requestId ? i.value()->requestId : mtpRequestId(0xFFFFFFFF);
|
|
}
|
|
{
|
|
QReadLocker locker(sessionData->toResendMutex());
|
|
const mtpRequestIdsMap &toResend(sessionData->toResendMap());
|
|
mtpRequestIdsMap::const_iterator i = toResend.constFind(msgId);
|
|
if (i != toResend.cend()) return i.value();
|
|
}
|
|
{
|
|
QReadLocker locker(sessionData->wereAckedMutex());
|
|
const mtpRequestIdsMap &wereAcked(sessionData->wereAckedMap());
|
|
mtpRequestIdsMap::const_iterator i = wereAcked.constFind(msgId);
|
|
if (i != wereAcked.cend()) return i.value();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void ConnectionPrivate::lockKey() {
|
|
unlockKey();
|
|
sessionData->keyMutex()->lockForWrite();
|
|
myKeyLock = true;
|
|
}
|
|
|
|
void ConnectionPrivate::unlockKey() {
|
|
if (myKeyLock) {
|
|
myKeyLock = false;
|
|
sessionData->keyMutex()->unlock();
|
|
}
|
|
}
|
|
|
|
ConnectionPrivate::~ConnectionPrivate() {
|
|
clearAuthKeyData();
|
|
t_assert(_finished && _conn == nullptr && _conn4 == nullptr && _conn6 == nullptr);
|
|
}
|
|
|
|
void ConnectionPrivate::stop() {
|
|
QWriteLocker lockFinished(&sessionDataMutex);
|
|
if (sessionData) {
|
|
if (myKeyLock) {
|
|
sessionData->owner()->notifyKeyCreated(AuthKeyPtr()); // release key lock, let someone else create it
|
|
sessionData->keyMutex()->unlock();
|
|
myKeyLock = false;
|
|
}
|
|
sessionData = nullptr;
|
|
}
|
|
}
|
|
|
|
} // namespace internal
|
|
|
|
bool IsPrimeAndGood(base::const_byte_span primeBytes, int g) {
|
|
return internal::IsPrimeAndGood(primeBytes, g);
|
|
}
|
|
|
|
ModExpFirst CreateModExp(int g, base::const_byte_span primeBytes, base::const_byte_span randomSeed) {
|
|
return internal::CreateModExp(g, primeBytes, randomSeed);
|
|
}
|
|
|
|
std::vector<gsl::byte> CreateAuthKey(base::const_byte_span firstBytes, base::const_byte_span randomBytes, base::const_byte_span primeBytes) {
|
|
return internal::CreateAuthKey(firstBytes, randomBytes, primeBytes);
|
|
}
|
|
|
|
} // namespace MTP
|