mirror of
https://github.com/vale981/tdesktop
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7d89b54d1c
If we start logging in and we know, that some of the authorization keys were read from the hard drive, not generated, we destroy all the existing authorization keys and start generating new keys.
127 lines
3.5 KiB
C++
127 lines
3.5 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 "stdafx.h"
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#include "mtproto/dcenter.h"
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#include "mtproto/facade.h"
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#include "mtproto/dc_options.h"
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#include "mtproto/mtp_instance.h"
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#include "localstorage.h"
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namespace MTP {
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namespace internal {
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namespace {
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constexpr auto kEnumerateDcTimeout = 8000; // 8 seconds timeout for help_getConfig to work (then move to other dc)
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} // namespace
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Dcenter::Dcenter(Instance *instance, DcId dcId, AuthKeyPtr &&key)
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: _instance(instance)
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, _id(dcId)
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, _key(std::move(key)) {
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connect(this, SIGNAL(authKeyCreated()), this, SLOT(authKeyWrite()), Qt::QueuedConnection);
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}
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void Dcenter::authKeyWrite() {
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DEBUG_LOG(("AuthKey Info: MTProtoDC::authKeyWrite() slot, dc %1").arg(_id));
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if (_key) {
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Local::writeMtpData();
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}
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}
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void Dcenter::setKey(AuthKeyPtr &&key) {
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DEBUG_LOG(("AuthKey Info: MTProtoDC::setKey(%1), emitting authKeyCreated, dc %2").arg(key ? key->keyId() : 0).arg(_id));
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_key = std::move(key);
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_connectionInited = false;
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_instance->setKeyForWrite(_id, _key);
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emit authKeyCreated();
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}
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QReadWriteLock *Dcenter::keyMutex() const {
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return &keyLock;
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}
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const AuthKeyPtr &Dcenter::getKey() const {
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return _key;
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}
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void Dcenter::destroyKey() {
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setKey(AuthKeyPtr());
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}
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ConfigLoader::ConfigLoader(Instance *instance, RPCDoneHandlerPtr onDone, RPCFailHandlerPtr onFail) : _instance(instance)
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, _doneHandler(onDone)
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, _failHandler(onFail) {
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connect(&_enumDCTimer, SIGNAL(timeout()), this, SLOT(enumDC()));
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}
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void ConfigLoader::load() {
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if (!_instance->isKeysDestroyer()) {
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sendRequest(_instance->mainDcId());
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_enumDCTimer.start(kEnumerateDcTimeout);
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} else {
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auto ids = _instance->dcOptions()->sortedDcIds();
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t_assert(!ids.empty());
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_enumCurrent = ids.front();
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enumDC();
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}
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}
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mtpRequestId ConfigLoader::sendRequest(ShiftedDcId shiftedDcId) {
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return _instance->send(MTPhelp_GetConfig(), _doneHandler, _failHandler, shiftedDcId);
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}
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ConfigLoader::~ConfigLoader() {
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if (_enumRequest) {
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_instance->cancel(_enumRequest);
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}
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if (_enumCurrent) {
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_instance->killSession(MTP::configDcId(_enumCurrent));
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}
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}
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void ConfigLoader::enumDC() {
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if (_enumRequest) {
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_instance->cancel(_enumRequest);
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}
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if (!_enumCurrent) {
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_enumCurrent = _instance->mainDcId();
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} else {
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_instance->killSession(MTP::configDcId(_enumCurrent));
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}
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auto ids = _instance->dcOptions()->sortedDcIds();
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t_assert(!ids.empty());
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auto i = std::find(ids.cbegin(), ids.cend(), _enumCurrent);
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if (i == ids.cend() || (++i) == ids.cend()) {
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_enumCurrent = ids.front();
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} else {
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_enumCurrent = *i;
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}
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_enumRequest = sendRequest(MTP::configDcId(_enumCurrent));
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_enumDCTimer.start(kEnumerateDcTimeout);
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}
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} // namespace internal
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} // namespace MTP
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