700 lines
23 KiB
C++
700 lines
23 KiB
C++
/*
|
|
This file is part of Telegram Desktop,
|
|
the official desktop version of Telegram messaging app, see https://telegram.org
|
|
|
|
Telegram Desktop is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
It is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
In addition, as a special exception, the copyright holders give permission
|
|
to link the code of portions of this program with the OpenSSL library.
|
|
|
|
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
|
|
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
|
|
*/
|
|
#include "mtproto/dc_options.h"
|
|
|
|
#include "storage/serialize_common.h"
|
|
|
|
namespace MTP {
|
|
namespace {
|
|
|
|
const char *(PublicRSAKeys[]) = { "\
|
|
-----BEGIN RSA PUBLIC KEY-----\n\
|
|
MIIBCgKCAQEAwVACPi9w23mF3tBkdZz+zwrzKOaaQdr01vAbU4E1pvkfj4sqDsm6\n\
|
|
lyDONS789sVoD/xCS9Y0hkkC3gtL1tSfTlgCMOOul9lcixlEKzwKENj1Yz/s7daS\n\
|
|
an9tqw3bfUV/nqgbhGX81v/+7RFAEd+RwFnK7a+XYl9sluzHRyVVaTTveB2GazTw\n\
|
|
Efzk2DWgkBluml8OREmvfraX3bkHZJTKX4EQSjBbbdJ2ZXIsRrYOXfaA+xayEGB+\n\
|
|
8hdlLmAjbCVfaigxX0CDqWeR1yFL9kwd9P0NsZRPsmoqVwMbMu7mStFai6aIhc3n\n\
|
|
Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB\n\
|
|
-----END RSA PUBLIC KEY-----", "\
|
|
-----BEGIN PUBLIC KEY-----\n\
|
|
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAruw2yP/BCcsJliRoW5eB\n\
|
|
VBVle9dtjJw+OYED160Wybum9SXtBBLXriwt4rROd9csv0t0OHCaTmRqBcQ0J8fx\n\
|
|
hN6/cpR1GWgOZRUAiQxoMnlt0R93LCX/j1dnVa/gVbCjdSxpbrfY2g2L4frzjJvd\n\
|
|
l84Kd9ORYjDEAyFnEA7dD556OptgLQQ2e2iVNq8NZLYTzLp5YpOdO1doK+ttrltg\n\
|
|
gTCy5SrKeLoCPPbOgGsdxJxyz5KKcZnSLj16yE5HvJQn0CNpRdENvRUXe6tBP78O\n\
|
|
39oJ8BTHp9oIjd6XWXAsp2CvK45Ol8wFXGF710w9lwCGNbmNxNYhtIkdqfsEcwR5\n\
|
|
JwIDAQAB\n\
|
|
-----END PUBLIC KEY-----", "\
|
|
-----BEGIN PUBLIC KEY-----\n\
|
|
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvfLHfYH2r9R70w8prHbl\n\
|
|
Wt/nDkh+XkgpflqQVcnAfSuTtO05lNPspQmL8Y2XjVT4t8cT6xAkdgfmmvnvRPOO\n\
|
|
KPi0OfJXoRVylFzAQG/j83u5K3kRLbae7fLccVhKZhY46lvsueI1hQdLgNV9n1cQ\n\
|
|
3TDS2pQOCtovG4eDl9wacrXOJTG2990VjgnIKNA0UMoP+KF03qzryqIt3oTvZq03\n\
|
|
DyWdGK+AZjgBLaDKSnC6qD2cFY81UryRWOab8zKkWAnhw2kFpcqhI0jdV5QaSCEx\n\
|
|
vnsjVaX0Y1N0870931/5Jb9ICe4nweZ9kSDF/gip3kWLG0o8XQpChDfyvsqB9OLV\n\
|
|
/wIDAQAB\n\
|
|
-----END PUBLIC KEY-----", "\
|
|
-----BEGIN PUBLIC KEY-----\n\
|
|
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs/ditzm+mPND6xkhzwFI\n\
|
|
z6J/968CtkcSE/7Z2qAJiXbmZ3UDJPGrzqTDHkO30R8VeRM/Kz2f4nR05GIFiITl\n\
|
|
4bEjvpy7xqRDspJcCFIOcyXm8abVDhF+th6knSU0yLtNKuQVP6voMrnt9MV1X92L\n\
|
|
GZQLgdHZbPQz0Z5qIpaKhdyA8DEvWWvSUwwc+yi1/gGaybwlzZwqXYoPOhwMebzK\n\
|
|
Uk0xW14htcJrRrq+PXXQbRzTMynseCoPIoke0dtCodbA3qQxQovE16q9zz4Otv2k\n\
|
|
4j63cz53J+mhkVWAeWxVGI0lltJmWtEYK6er8VqqWot3nqmWMXogrgRLggv/Nbbo\n\
|
|
oQIDAQAB\n\
|
|
-----END PUBLIC KEY-----", "\
|
|
-----BEGIN PUBLIC KEY-----\n\
|
|
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvmpxVY7ld/8DAjz6F6q0\n\
|
|
5shjg8/4p6047bn6/m8yPy1RBsvIyvuDuGnP/RzPEhzXQ9UJ5Ynmh2XJZgHoE9xb\n\
|
|
nfxL5BXHplJhMtADXKM9bWB11PU1Eioc3+AXBB8QiNFBn2XI5UkO5hPhbb9mJpjA\n\
|
|
9Uhw8EdfqJP8QetVsI/xrCEbwEXe0xvifRLJbY08/Gp66KpQvy7g8w7VB8wlgePe\n\
|
|
xW3pT13Ap6vuC+mQuJPyiHvSxjEKHgqePji9NP3tJUFQjcECqcm0yV7/2d0t/pbC\n\
|
|
m+ZH1sadZspQCEPPrtbkQBlvHb4OLiIWPGHKSMeRFvp3IWcmdJqXahxLCUS1Eh6M\n\
|
|
AQIDAQAB\n\
|
|
-----END PUBLIC KEY-----" };
|
|
|
|
} // namespace
|
|
|
|
class DcOptions::WriteLocker {
|
|
public:
|
|
WriteLocker(DcOptions *that) : _that(that), _lock(&_that->_useThroughLockers) {
|
|
}
|
|
~WriteLocker() {
|
|
_that->computeCdnDcIds();
|
|
}
|
|
|
|
private:
|
|
not_null<DcOptions*> _that;
|
|
QWriteLocker _lock;
|
|
|
|
};
|
|
|
|
class DcOptions::ReadLocker {
|
|
public:
|
|
ReadLocker(const DcOptions *that) : _lock(&that->_useThroughLockers) {
|
|
}
|
|
|
|
private:
|
|
QReadLocker _lock;
|
|
|
|
};
|
|
|
|
void DcOptions::readBuiltInPublicKeys() {
|
|
for (const auto key : PublicRSAKeys) {
|
|
const auto keyBytes = gsl::make_span(key, key + strlen(key));
|
|
auto parsed = internal::RSAPublicKey(gsl::as_bytes(keyBytes));
|
|
if (parsed.isValid()) {
|
|
_publicKeys.emplace(parsed.getFingerPrint(), std::move(parsed));
|
|
} else {
|
|
LOG(("MTP Error: could not read this public RSA key:"));
|
|
LOG((key));
|
|
}
|
|
}
|
|
}
|
|
|
|
void DcOptions::constructFromBuiltIn() {
|
|
WriteLocker lock(this);
|
|
_data.clear();
|
|
|
|
readBuiltInPublicKeys();
|
|
|
|
auto bdcs = builtInDcs();
|
|
for (auto i = 0, l = builtInDcsCount(); i != l; ++i) {
|
|
auto flags = MTPDdcOption::Flags(0);
|
|
auto idWithShift = MTP::shiftDcId(bdcs[i].id, flags);
|
|
_data.emplace(idWithShift, Option(bdcs[i].id, flags, bdcs[i].ip, bdcs[i].port));
|
|
DEBUG_LOG(("MTP Info: adding built in DC %1 connect option: %2:%3").arg(bdcs[i].id).arg(bdcs[i].ip).arg(bdcs[i].port));
|
|
}
|
|
|
|
auto bdcsipv6 = builtInDcsIPv6();
|
|
for (auto i = 0, l = builtInDcsCountIPv6(); i != l; ++i) {
|
|
auto flags = MTPDdcOption::Flags(MTPDdcOption::Flag::f_ipv6);
|
|
auto idWithShift = MTP::shiftDcId(bdcsipv6[i].id, flags);
|
|
_data.emplace(idWithShift, Option(bdcsipv6[i].id, flags, bdcsipv6[i].ip, bdcsipv6[i].port));
|
|
DEBUG_LOG(("MTP Info: adding built in DC %1 IPv6 connect option: %2:%3").arg(bdcsipv6[i].id).arg(bdcsipv6[i].ip).arg(bdcsipv6[i].port));
|
|
}
|
|
}
|
|
|
|
void DcOptions::processFromList(const QVector<MTPDcOption> &options, bool overwrite) {
|
|
if (options.empty() || _immutable) {
|
|
return;
|
|
}
|
|
|
|
auto idsChanged = std::vector<DcId>();
|
|
idsChanged.reserve(options.size());
|
|
auto shiftedIdsProcessed = std::vector<ShiftedDcId>();
|
|
shiftedIdsProcessed.reserve(options.size());
|
|
{
|
|
WriteLocker lock(this);
|
|
if (overwrite) {
|
|
idsChanged.reserve(_data.size());
|
|
}
|
|
for (auto &mtpOption : options) {
|
|
if (mtpOption.type() != mtpc_dcOption) {
|
|
LOG(("Wrong type in DcOptions: %1").arg(mtpOption.type()));
|
|
continue;
|
|
}
|
|
|
|
auto &option = mtpOption.c_dcOption();
|
|
auto dcId = option.vid.v;
|
|
auto flags = option.vflags.v;
|
|
auto dcIdWithShift = MTP::shiftDcId(dcId, flags);
|
|
if (base::contains(shiftedIdsProcessed, dcIdWithShift)) {
|
|
continue;
|
|
}
|
|
|
|
shiftedIdsProcessed.push_back(dcIdWithShift);
|
|
auto ip = std::string(option.vip_address.v.constData(), option.vip_address.v.size());
|
|
auto port = option.vport.v;
|
|
if (applyOneGuarded(dcId, flags, ip, port)) {
|
|
if (!base::contains(idsChanged, dcId)) {
|
|
idsChanged.push_back(dcId);
|
|
}
|
|
}
|
|
}
|
|
if (overwrite && shiftedIdsProcessed.size() < _data.size()) {
|
|
for (auto i = _data.begin(); i != _data.end();) {
|
|
if (base::contains(shiftedIdsProcessed, i->first)) {
|
|
++i;
|
|
} else {
|
|
if (!base::contains(idsChanged, i->second.id)) {
|
|
idsChanged.push_back(i->second.id);
|
|
}
|
|
i = _data.erase(i);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!idsChanged.empty()) {
|
|
_changed.notify(std::move(idsChanged));
|
|
}
|
|
}
|
|
|
|
void DcOptions::setFromList(const MTPVector<MTPDcOption> &options) {
|
|
processFromList(options.v, true);
|
|
}
|
|
|
|
void DcOptions::addFromList(const MTPVector<MTPDcOption> &options) {
|
|
processFromList(options.v, false);
|
|
}
|
|
|
|
void DcOptions::addFromOther(DcOptions &&options) {
|
|
if (this == &options || _immutable) {
|
|
return;
|
|
}
|
|
|
|
auto idsChanged = std::vector<DcId>();
|
|
{
|
|
ReadLocker lock(&options);
|
|
if (options._data.empty()) {
|
|
return;
|
|
}
|
|
|
|
idsChanged.reserve(options._data.size());
|
|
{
|
|
WriteLocker lock(this);
|
|
for (auto &item : base::take(options._data)) {
|
|
auto dcId = item.second.id;
|
|
auto flags = item.second.flags;
|
|
auto &ip = item.second.ip;
|
|
auto port = item.second.port;
|
|
if (applyOneGuarded(dcId, flags, ip, port)) {
|
|
if (!base::contains(idsChanged, dcId)) {
|
|
idsChanged.push_back(dcId);
|
|
}
|
|
}
|
|
}
|
|
for (auto &keysForDc : options._cdnPublicKeys) {
|
|
for (auto &entry : keysForDc.second) {
|
|
_cdnPublicKeys[keysForDc.first].insert(std::move(entry));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!idsChanged.empty()) {
|
|
_changed.notify(std::move(idsChanged));
|
|
}
|
|
}
|
|
|
|
void DcOptions::constructAddOne(int id, MTPDdcOption::Flags flags, const std::string &ip, int port) {
|
|
WriteLocker lock(this);
|
|
applyOneGuarded(bareDcId(id), flags, ip, port);
|
|
}
|
|
|
|
bool DcOptions::applyOneGuarded(DcId dcId, MTPDdcOption::Flags flags, const std::string &ip, int port) {
|
|
auto dcIdWithShift = MTP::shiftDcId(dcId, flags);
|
|
auto i = _data.find(dcIdWithShift);
|
|
if (i != _data.cend()) {
|
|
if (i->second.ip == ip && i->second.port == port) {
|
|
return false;
|
|
}
|
|
i->second.ip = ip;
|
|
i->second.port = port;
|
|
} else {
|
|
_data.emplace(dcIdWithShift, Option(dcId, flags, ip, port));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
QByteArray DcOptions::serialize() const {
|
|
if (_immutable) {
|
|
// Don't write the overriden options to our settings.
|
|
return DcOptions().serialize();
|
|
}
|
|
|
|
ReadLocker lock(this);
|
|
|
|
auto size = sizeof(qint32);
|
|
for (auto &item : _data) {
|
|
if (isTemporaryDcId(item.first)) {
|
|
continue;
|
|
}
|
|
size += sizeof(qint32) + sizeof(qint32) + sizeof(qint32); // id + flags + port
|
|
size += sizeof(qint32) + item.second.ip.size();
|
|
}
|
|
|
|
auto count = 0;
|
|
for (auto &keysInDc : _cdnPublicKeys) {
|
|
count += keysInDc.second.size();
|
|
}
|
|
struct SerializedPublicKey {
|
|
DcId dcId;
|
|
base::byte_vector n;
|
|
base::byte_vector e;
|
|
};
|
|
std::vector<SerializedPublicKey> publicKeys;
|
|
publicKeys.reserve(count);
|
|
for (auto &keysInDc : _cdnPublicKeys) {
|
|
for (auto &entry : keysInDc.second) {
|
|
publicKeys.push_back({ keysInDc.first, entry.second.getN(), entry.second.getE() });
|
|
size += sizeof(qint32) + Serialize::bytesSize(publicKeys.back().n) + Serialize::bytesSize(publicKeys.back().e);
|
|
}
|
|
}
|
|
|
|
auto result = QByteArray();
|
|
result.reserve(size);
|
|
{
|
|
QDataStream stream(&result, QIODevice::WriteOnly);
|
|
stream.setVersion(QDataStream::Qt_5_1);
|
|
stream << qint32(_data.size());
|
|
for (auto &item : _data) {
|
|
if (isTemporaryDcId(item.first)) {
|
|
continue;
|
|
}
|
|
stream << qint32(item.second.id) << qint32(item.second.flags) << qint32(item.second.port);
|
|
stream << qint32(item.second.ip.size());
|
|
stream.writeRawData(item.second.ip.data(), item.second.ip.size());
|
|
}
|
|
stream << qint32(publicKeys.size());
|
|
for (auto &key : publicKeys) {
|
|
stream << qint32(key.dcId) << Serialize::bytes(key.n) << Serialize::bytes(key.e);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void DcOptions::constructFromSerialized(const QByteArray &serialized) {
|
|
QDataStream stream(serialized);
|
|
stream.setVersion(QDataStream::Qt_5_1);
|
|
auto count = qint32(0);
|
|
stream >> count;
|
|
if (stream.status() != QDataStream::Ok) {
|
|
LOG(("MTP Error: Bad data for DcOptions::constructFromSerialized()"));
|
|
return;
|
|
}
|
|
|
|
WriteLocker lock(this);
|
|
_data.clear();
|
|
for (auto i = 0; i != count; ++i) {
|
|
qint32 id = 0, flags = 0, port = 0, ipSize = 0;
|
|
stream >> id >> flags >> port >> ipSize;
|
|
|
|
// https://stackoverflow.com/questions/1076714/max-length-for-client-ip-address
|
|
constexpr auto kMaxIpSize = 45;
|
|
if (ipSize <= 0 || ipSize > kMaxIpSize) {
|
|
LOG(("MTP Error: Bad data inside DcOptions::constructFromSerialized()"));
|
|
return;
|
|
}
|
|
|
|
std::string ip(ipSize, ' ');
|
|
stream.readRawData(&ip[0], ipSize);
|
|
|
|
if (stream.status() != QDataStream::Ok) {
|
|
LOG(("MTP Error: Bad data inside DcOptions::constructFromSerialized()"));
|
|
return;
|
|
}
|
|
|
|
applyOneGuarded(DcId(id), MTPDdcOption::Flags::from_raw(flags), ip, port);
|
|
}
|
|
|
|
// Read CDN config
|
|
if (!stream.atEnd()) {
|
|
auto count = qint32(0);
|
|
stream >> count;
|
|
if (stream.status() != QDataStream::Ok) {
|
|
LOG(("MTP Error: Bad data for CDN config in DcOptions::constructFromSerialized()"));
|
|
return;
|
|
}
|
|
|
|
for (auto i = 0; i != count; ++i) {
|
|
qint32 dcId = 0;
|
|
base::byte_vector n, e;
|
|
stream >> dcId >> Serialize::bytes(n) >> Serialize::bytes(e);
|
|
if (stream.status() != QDataStream::Ok) {
|
|
LOG(("MTP Error: Bad data for CDN config inside DcOptions::constructFromSerialized()"));
|
|
return;
|
|
}
|
|
|
|
auto key = internal::RSAPublicKey(n, e);
|
|
if (key.isValid()) {
|
|
_cdnPublicKeys[dcId].emplace(key.getFingerPrint(), std::move(key));
|
|
} else {
|
|
LOG(("MTP Error: Could not read valid CDN public key."));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
DcOptions::Ids DcOptions::configEnumDcIds() const {
|
|
auto result = Ids();
|
|
{
|
|
ReadLocker lock(this);
|
|
result.reserve(_data.size());
|
|
for (auto &item : _data) {
|
|
if (!isCdnDc(item.second.flags)
|
|
&& !isTemporaryDcId(item.first)
|
|
&& !base::contains(result, item.second.id)) {
|
|
result.push_back(item.second.id);
|
|
}
|
|
}
|
|
}
|
|
ranges::sort(result);
|
|
return result;
|
|
}
|
|
|
|
DcType DcOptions::dcType(ShiftedDcId shiftedDcId) const {
|
|
if (isTemporaryDcId(shiftedDcId)) {
|
|
return DcType::Temporary;
|
|
}
|
|
ReadLocker lock(this);
|
|
if (_cdnDcIds.find(bareDcId(shiftedDcId)) != _cdnDcIds.cend()) {
|
|
return DcType::Cdn;
|
|
}
|
|
if (isDownloadDcId(shiftedDcId)) {
|
|
return DcType::MediaDownload;
|
|
}
|
|
return DcType::Regular;
|
|
}
|
|
|
|
void DcOptions::setCDNConfig(const MTPDcdnConfig &config) {
|
|
WriteLocker lock(this);
|
|
_cdnPublicKeys.clear();
|
|
for_const (auto &publicKey, config.vpublic_keys.v) {
|
|
Expects(publicKey.type() == mtpc_cdnPublicKey);
|
|
const auto &keyData = publicKey.c_cdnPublicKey();
|
|
const auto keyBytes = gsl::make_span(keyData.vpublic_key.v);
|
|
auto key = internal::RSAPublicKey(gsl::as_bytes(keyBytes));
|
|
if (key.isValid()) {
|
|
_cdnPublicKeys[keyData.vdc_id.v].emplace(
|
|
key.getFingerPrint(),
|
|
std::move(key));
|
|
} else {
|
|
LOG(("MTP Error: could not read this public RSA key:"));
|
|
LOG((qs(keyData.vpublic_key)));
|
|
}
|
|
}
|
|
}
|
|
|
|
bool DcOptions::hasCDNKeysForDc(DcId dcId) const {
|
|
ReadLocker lock(this);
|
|
return _cdnPublicKeys.find(dcId) != _cdnPublicKeys.cend();
|
|
}
|
|
|
|
bool DcOptions::getDcRSAKey(DcId dcId, const QVector<MTPlong> &fingerprints, internal::RSAPublicKey *result) const {
|
|
auto findKey = [&fingerprints, &result](const std::map<uint64, internal::RSAPublicKey> &keys) {
|
|
for_const (auto &fingerprint, fingerprints) {
|
|
auto it = keys.find(static_cast<uint64>(fingerprint.v));
|
|
if (it != keys.cend()) {
|
|
*result = it->second;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
{
|
|
ReadLocker lock(this);
|
|
auto it = _cdnPublicKeys.find(dcId);
|
|
if (it != _cdnPublicKeys.cend()) {
|
|
return findKey(it->second);
|
|
}
|
|
}
|
|
return findKey(_publicKeys);
|
|
}
|
|
|
|
DcOptions::Variants DcOptions::lookup(DcId dcId, DcType type) const {
|
|
auto lookupDesiredFlags = [type](int address, int protocol) -> std::vector<MTPDdcOption::Flags> {
|
|
auto throughProxy = (Global::ConnectionType() != dbictAuto);
|
|
|
|
switch (type) {
|
|
case DcType::Regular:
|
|
case DcType::Temporary: {
|
|
switch (address) {
|
|
case Variants::IPv4: {
|
|
switch (protocol) {
|
|
case Variants::Tcp: return {
|
|
// Regular TCP IPv4
|
|
throughProxy ? (MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_tcpo_only | 0),
|
|
throughProxy ? (MTPDdcOption::Flag::f_static | 0) : MTPDdcOption::Flags(0),
|
|
(MTPDdcOption::Flag::f_tcpo_only | 0),
|
|
0
|
|
};
|
|
case Variants::Http: return {
|
|
// Regular HTTP IPv4
|
|
throughProxy ? (MTPDdcOption::Flag::f_static | 0) : MTPDdcOption::Flags(0),
|
|
0,
|
|
};
|
|
}
|
|
} break;
|
|
case Variants::IPv6: {
|
|
switch (protocol) {
|
|
case Variants::Tcp: return {
|
|
// Regular TCP IPv6
|
|
throughProxy ? (MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_ipv6),
|
|
throughProxy ? (MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_ipv6 | 0),
|
|
(MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_ipv6),
|
|
(MTPDdcOption::Flag::f_ipv6 | 0),
|
|
};
|
|
case Variants::Http: return {
|
|
// Regular HTTP IPv6
|
|
throughProxy ? (MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_ipv6 | 0),
|
|
(MTPDdcOption::Flag::f_ipv6 | 0),
|
|
};
|
|
}
|
|
} break;
|
|
}
|
|
} break;
|
|
case DcType::MediaDownload: {
|
|
switch (address) {
|
|
case Variants::IPv4: {
|
|
switch (protocol) {
|
|
case Variants::Tcp: return {
|
|
// Media download TCP IPv4
|
|
throughProxy ? (MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_tcpo_only),
|
|
throughProxy ? (MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_tcpo_only | 0),
|
|
(MTPDdcOption::Flag::f_media_only | 0),
|
|
throughProxy ? (MTPDdcOption::Flag::f_static | 0) : MTPDdcOption::Flags(0),
|
|
(MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_tcpo_only),
|
|
throughProxy ? (MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_tcpo_only | 0),
|
|
throughProxy ? (MTPDdcOption::Flag::f_tcpo_only | 0) : (MTPDdcOption::Flag::f_media_only | 0),
|
|
0,
|
|
};
|
|
case Variants::Http: return {
|
|
// Media download HTTP IPv4
|
|
throughProxy ? (MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_media_only | 0),
|
|
(MTPDdcOption::Flag::f_media_only | 0),
|
|
throughProxy ? (MTPDdcOption::Flag::f_static | 0) : MTPDdcOption::Flags(0),
|
|
0,
|
|
};
|
|
}
|
|
} break;
|
|
case Variants::IPv6: {
|
|
switch (protocol) {
|
|
case Variants::Tcp: return {
|
|
// Media download TCP IPv6
|
|
throughProxy ? (MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_ipv6),
|
|
throughProxy ? (MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_ipv6),
|
|
(MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_ipv6),
|
|
throughProxy ? (MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_ipv6 | 0),
|
|
(MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_ipv6),
|
|
throughProxy ? (MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_ipv6),
|
|
throughProxy ? (MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_ipv6) : (MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_ipv6),
|
|
(MTPDdcOption::Flag::f_ipv6 | 0)
|
|
};
|
|
case Variants::Http: return {
|
|
// Media download HTTP IPv6
|
|
throughProxy ? (MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_ipv6),
|
|
(MTPDdcOption::Flag::f_media_only | MTPDdcOption::Flag::f_ipv6),
|
|
throughProxy ? (MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_ipv6 | 0),
|
|
(MTPDdcOption::Flag::f_ipv6 | 0),
|
|
};
|
|
}
|
|
} break;
|
|
}
|
|
} break;
|
|
case DcType::Cdn: {
|
|
switch (address) {
|
|
case Variants::IPv4: {
|
|
switch (protocol) {
|
|
case Variants::Tcp: return {
|
|
// CDN TCP IPv4
|
|
throughProxy ? (MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_tcpo_only),
|
|
throughProxy ? (MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_cdn | 0),
|
|
(MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_tcpo_only),
|
|
(MTPDdcOption::Flag::f_cdn | 0),
|
|
};
|
|
case Variants::Http: return {
|
|
// CDN HTTP IPv4
|
|
throughProxy ? (MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_cdn | 0),
|
|
(MTPDdcOption::Flag::f_cdn | 0),
|
|
};
|
|
}
|
|
} break;
|
|
case Variants::IPv6: {
|
|
switch (protocol) {
|
|
case Variants::Tcp: return {
|
|
// CDN TCP IPv6
|
|
throughProxy ? (MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_tcpo_only),
|
|
throughProxy ? (MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_ipv6),
|
|
(MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_tcpo_only | MTPDdcOption::Flag::f_ipv6),
|
|
(MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_ipv6),
|
|
};
|
|
case Variants::Http: return {
|
|
// CDN HTTP IPv6
|
|
throughProxy ? (MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_ipv6 | MTPDdcOption::Flag::f_static) : (MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_ipv6),
|
|
(MTPDdcOption::Flag::f_cdn | MTPDdcOption::Flag::f_ipv6),
|
|
};
|
|
}
|
|
} break;
|
|
}
|
|
} break;
|
|
}
|
|
Unexpected("Bad type / address / protocol");
|
|
};
|
|
|
|
auto result = Variants();
|
|
{
|
|
ReadLocker lock(this);
|
|
for (auto address = 0; address != Variants::AddressTypeCount; ++address) {
|
|
for (auto protocol = 0; protocol != Variants::ProtocolCount; ++protocol) {
|
|
auto desiredFlags = lookupDesiredFlags(address, protocol);
|
|
for (auto flags : desiredFlags) {
|
|
auto shift = static_cast<int>(flags);
|
|
if (shift < 0) continue;
|
|
|
|
auto it = _data.find(shiftDcId(dcId, shift));
|
|
if (it != _data.cend()) {
|
|
result.data[address][protocol].ip = it->second.ip;
|
|
result.data[address][protocol].flags = it->second.flags;
|
|
result.data[address][protocol].port = it->second.port;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void DcOptions::computeCdnDcIds() {
|
|
_cdnDcIds.clear();
|
|
for (auto &item : _data) {
|
|
if (item.second.flags & MTPDdcOption::Flag::f_cdn) {
|
|
_cdnDcIds.insert(item.second.id);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool DcOptions::loadFromFile(const QString &path) {
|
|
QVector<MTPDcOption> options;
|
|
|
|
QFile f(path);
|
|
if (!f.open(QIODevice::ReadOnly)) {
|
|
LOG(("MTP Error: could not read '%1'").arg(path));
|
|
return false;
|
|
}
|
|
QTextStream stream(&f);
|
|
stream.setCodec("UTF-8");
|
|
while (!stream.atEnd()) {
|
|
auto line = stream.readLine();
|
|
auto components = line.split(QRegularExpression(R"(\s)"), QString::SkipEmptyParts);
|
|
if (components.isEmpty() || components[0].startsWith('#')) {
|
|
continue;
|
|
}
|
|
|
|
auto error = [line] {
|
|
LOG(("MTP Error: in .tdesktop-endpoints expected 'dcId host port [tcpo_only] [media_only]', got '%1'").arg(line));
|
|
return false;
|
|
};
|
|
if (components.size() < 3) {
|
|
return error();
|
|
}
|
|
auto dcId = components[0].toInt();
|
|
auto ip = components[1];
|
|
auto port = components[2].toInt();
|
|
auto host = QHostAddress();
|
|
if (dcId <= 0 || dcId >= internal::kDcShift || !host.setAddress(ip) || port <= 0) {
|
|
return error();
|
|
}
|
|
auto flags = MTPDdcOption::Flags(0);
|
|
if (host.protocol() == QAbstractSocket::IPv6Protocol) {
|
|
flags |= MTPDdcOption::Flag::f_ipv6;
|
|
}
|
|
for (auto &option : components.mid(3)) {
|
|
if (option.startsWith('#')) {
|
|
break;
|
|
} else if (option == qstr("tcpo_only")) {
|
|
flags |= MTPDdcOption::Flag::f_tcpo_only;
|
|
} else if (option == qstr("media_only")) {
|
|
flags |= MTPDdcOption::Flag::f_media_only;
|
|
} else {
|
|
return error();
|
|
}
|
|
}
|
|
options.push_back(MTP_dcOption(MTP_flags(flags), MTP_int(dcId), MTP_string(ip), MTP_int(port)));
|
|
}
|
|
if (options.isEmpty()) {
|
|
LOG(("MTP Error: in .tdesktop-endpoints expected at least one endpoint being provided."));
|
|
return false;
|
|
}
|
|
|
|
_immutable = false;
|
|
setFromList(MTP_vector<MTPDcOption>(options));
|
|
_immutable = true;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool DcOptions::writeToFile(const QString &path) const {
|
|
QFile f(path);
|
|
if (!f.open(QIODevice::WriteOnly)) {
|
|
return false;
|
|
}
|
|
QTextStream stream(&f);
|
|
stream.setCodec("UTF-8");
|
|
|
|
ReadLocker lock(this);
|
|
for (auto &item : _data) {
|
|
auto &endpoint = item.second;
|
|
stream << endpoint.id << ' ' << QString::fromStdString(endpoint.ip) << ' ' << endpoint.port;
|
|
if (endpoint.flags & MTPDdcOption::Flag::f_tcpo_only) {
|
|
stream << " tcpo_only";
|
|
}
|
|
if (endpoint.flags & MTPDdcOption::Flag::f_media_only) {
|
|
stream << " media_only";
|
|
}
|
|
stream << '\n';
|
|
}
|
|
return true;
|
|
}
|
|
|
|
} // namespace MTP
|