287 lines
7.3 KiB
C++
287 lines
7.3 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) 2014-2015 John Preston, https://desktop.telegram.org
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*/
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#include "stdafx.h"
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#include "mtpDC.h"
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#include "mtp.h"
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#include "localstorage.h"
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namespace {
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MTProtoDCMap gDCs;
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bool configLoadedOnce = false;
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bool mainDCChanged = false;
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int32 mainDC = 2;
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int32 userId = 0;
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typedef QMap<int32, mtpAuthKeyPtr> _KeysMapForWrite;
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_KeysMapForWrite _keysMapForWrite;
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QMutex _keysMapForWriteMutex;
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}
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int32 mtpAuthed() {
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return userId;
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}
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void mtpAuthed(int32 uid) {
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if (userId != uid) {
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userId = uid;
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}
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}
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MTProtoDCMap &mtpDCMap() {
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return gDCs;
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}
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bool mtpNeedConfig() {
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return !configLoadedOnce;
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}
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int32 mtpMainDC() {
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return mainDC;
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}
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namespace {
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QMap<int32, mtpRequestId> logoutGuestMap; // dcWithShift to logout request id
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bool logoutDone(mtpRequestId req) {
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for (QMap<int32, mtpRequestId>::iterator i = logoutGuestMap.begin(); i != logoutGuestMap.end(); ++i) {
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if (i.value() == req) {
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MTP::killSession(i.key());
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logoutGuestMap.erase(i);
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return true;
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}
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}
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return false;
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}
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}
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void mtpLogoutOtherDCs() {
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QList<int32> dcs;
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{
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QMutexLocker lock(&_keysMapForWriteMutex);
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dcs = _keysMapForWrite.keys();
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}
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for (int32 i = 0, cnt = dcs.size(); i != cnt; ++i) {
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if (dcs[i] != MTP::maindc()) {
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logoutGuestMap.insert(MTP::lgt + dcs[i], MTP::send(MTPauth_LogOut(), rpcDone(&logoutDone), rpcFail(&logoutDone), MTP::lgt + dcs[i]));
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}
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}
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}
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void mtpSetDC(int32 dc, bool firstOnly) {
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if (!dc || (firstOnly && mainDCChanged)) return;
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mainDCChanged = true;
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if (dc != mainDC) {
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mainDC = dc;
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}
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}
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MTProtoDC::MTProtoDC(int32 id, const mtpAuthKeyPtr &key) : _id(id), _key(key), _connectionInited(false) {
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connect(this, SIGNAL(authKeyCreated()), this, SLOT(authKeyWrite()), Qt::QueuedConnection);
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QMutexLocker lock(&_keysMapForWriteMutex);
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if (_key) {
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_keysMapForWrite[_id] = _key;
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} else {
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_keysMapForWrite.remove(_id);
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}
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}
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void MTProtoDC::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 MTProtoDC::setKey(const mtpAuthKeyPtr &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 = key;
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_connectionInited = false;
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emit authKeyCreated();
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QMutexLocker lock(&_keysMapForWriteMutex);
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if (_key) {
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_keysMapForWrite[_id] = _key;
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} else {
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_keysMapForWrite.remove(_id);
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}
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}
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QReadWriteLock *MTProtoDC::keyMutex() const {
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return &keyLock;
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}
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const mtpAuthKeyPtr &MTProtoDC::getKey() const {
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return _key;
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}
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void MTProtoDC::destroyKey() {
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setKey(mtpAuthKeyPtr());
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QMutexLocker lock(&_keysMapForWriteMutex);
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_keysMapForWrite.remove(_id);
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}
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namespace {
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MTProtoConfigLoader *configLoader = 0;
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bool loadingConfig = false;
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void configLoaded(const MTPConfig &result) {
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loadingConfig = false;
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const MTPDconfig &data(result.c_config());
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DEBUG_LOG(("MTP Info: got config, chat_size_max: %1, date: %2, test_mode: %3, this_dc: %4, dc_options.length: %5").arg(data.vchat_size_max.v).arg(data.vdate.v).arg(mtpIsTrue(data.vtest_mode)).arg(data.vthis_dc.v).arg(data.vdc_options.c_vector().v.size()));
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mtpUpdateDcOptions(data.vdc_options.c_vector().v);
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cSetMaxGroupCount(data.vchat_size_max.v);
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cSetMaxMegaGroupCount(data.vmegagroup_size_max.v);
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cSetSavedGifsLimit(data.vsaved_gifs_limit.v);
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configLoadedOnce = true;
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Local::writeSettings();
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mtpConfigLoader()->done();
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}
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bool configFailed(const RPCError &error) {
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if (mtpIsFlood(error)) return false;
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loadingConfig = false;
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LOG(("MTP Error: failed to get config!"));
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return false;
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}
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};
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void mtpUpdateDcOptions(const QVector<MTPDcOption> &options) {
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QSet<int32> already, restart;
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{
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mtpDcOptions opts;
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{
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QReadLocker lock(mtpDcOptionsMutex());
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opts = cDcOptions();
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}
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for (QVector<MTPDcOption>::const_iterator i = options.cbegin(), e = options.cend(); i != e; ++i) {
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const MTPDdcOption &optData(i->c_dcOption());
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int32 id = optData.vid.v, idWithShift = id + (optData.vflags.v * _mtp_internal::dcShift);
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if (already.constFind(idWithShift) == already.cend()) {
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already.insert(idWithShift);
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mtpDcOptions::const_iterator a = opts.constFind(idWithShift);
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if (a != opts.cend()) {
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if (a.value().ip != optData.vip_address.c_string().v || a.value().port != optData.vport.v) {
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restart.insert(id);
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}
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}
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opts.insert(idWithShift, mtpDcOption(id, optData.vflags.v, optData.vip_address.c_string().v, optData.vport.v));
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}
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}
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{
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QWriteLocker lock(mtpDcOptionsMutex());
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cSetDcOptions(opts);
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}
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}
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for (QSet<int32>::const_iterator i = restart.cbegin(), e = restart.cend(); i != e; ++i) {
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MTP::restart(*i);
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}
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}
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namespace {
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QReadWriteLock _dcOptionsMutex;
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}
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QReadWriteLock *mtpDcOptionsMutex() {
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return &_dcOptionsMutex;
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}
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MTProtoConfigLoader::MTProtoConfigLoader() : _enumCurrent(0), _enumRequest(0) {
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connect(&_enumDCTimer, SIGNAL(timeout()), this, SLOT(enumDC()));
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}
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void MTProtoConfigLoader::load() {
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if (loadingConfig) return;
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loadingConfig = true;
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MTP::send(MTPhelp_GetConfig(), rpcDone(configLoaded), rpcFail(configFailed));
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_enumDCTimer.start(MTPEnumDCTimeout);
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}
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void MTProtoConfigLoader::done() {
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_enumDCTimer.stop();
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if (_enumRequest) {
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MTP::cancel(_enumRequest);
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_enumRequest = 0;
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}
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if (_enumCurrent) {
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MTP::killSession(MTP::cfg + _enumCurrent);
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_enumCurrent = 0;
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}
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emit loaded();
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}
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void MTProtoConfigLoader::enumDC() {
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if (!loadingConfig) return;
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if (_enumRequest) MTP::cancel(_enumRequest);
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if (!_enumCurrent) {
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_enumCurrent = mainDC;
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} else {
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MTP::killSession(MTP::cfg + _enumCurrent);
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}
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{
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QReadLocker lock(mtpDcOptionsMutex());
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const mtpDcOptions &options(cDcOptions());
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for (mtpDcOptions::const_iterator i = options.cbegin(), e = options.cend(); i != e; ++i) {
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if (i.key() == _enumCurrent) {
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_enumCurrent = (++i == e) ? options.cbegin().key() : i.key();
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break;
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}
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}
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}
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_enumRequest = MTP::send(MTPhelp_GetConfig(), rpcDone(configLoaded), rpcFail(configFailed), MTP::cfg + _enumCurrent);
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_enumDCTimer.start(MTPEnumDCTimeout);
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}
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MTProtoConfigLoader *mtpConfigLoader() {
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if (!configLoader) configLoader = new MTProtoConfigLoader();
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return configLoader;
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}
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void mtpDestroyConfigLoader() {
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delete configLoader;
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configLoader = 0;
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}
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mtpKeysMap mtpGetKeys() {
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mtpKeysMap result;
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QMutexLocker lock(&_keysMapForWriteMutex);
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for (_KeysMapForWrite::const_iterator i = _keysMapForWrite.cbegin(), e = _keysMapForWrite.cend(); i != e; ++i) {
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result.push_back(i.value());
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}
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return result;
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}
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void mtpSetKey(int32 dcId, mtpAuthKeyPtr key) {
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MTProtoDCPtr dc(new MTProtoDC(dcId, key));
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gDCs.insert(dcId, dc);
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}
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