tdesktop/Telegram/SourceFiles/core/update_checker.cpp

1193 lines
33 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "core/update_checker.h"
#include "application.h"
#include "platform/platform_specific.h"
#include "base/timer.h"
#include "storage/localstorage.h"
#include <openssl/rsa.h>
#include <openssl/pem.h>
#include <openssl/bio.h>
#include <openssl/err.h>
#ifdef Q_OS_WIN // use Lzma SDK for win
#include <LzmaLib.h>
#else // Q_OS_WIN
#include <lzma.h>
#endif // else of Q_OS_WIN
namespace Core {
#ifndef TDESKTOP_DISABLE_AUTOUPDATE
namespace {
constexpr auto kCheckTimeout = TimeMs(10000);
constexpr auto kMaxResponseSize = 1024 * 1024;
#ifdef Q_OS_WIN
using VersionInt = DWORD;
using VersionChar = WCHAR;
#else // Q_OS_WIN
using VersionInt = int;
using VersionChar = wchar_t;
#endif // Q_OS_WIN
using ErrorSignal = void(QNetworkReply::*)(QNetworkReply::NetworkError);
const auto QNetworkReply_error = ErrorSignal(&QNetworkReply::error);
std::weak_ptr<Updater> UpdaterInstance;
std::shared_ptr<Updater> GetUpdaterInstance() {
if (const auto result = UpdaterInstance.lock()) {
return result;
}
const auto result = std::make_shared<Updater>();
UpdaterInstance = result;
return result;
}
void ClearAll() {
psDeleteDir(cWorkingDir() + qsl("tupdates"));
}
QString FindUpdateFile() {
QDir updates(cWorkingDir() + "tupdates");
if (!updates.exists()) {
return QString();
}
const auto list = updates.entryInfoList(QDir::Files);
for (const auto &info : list) {
if (QRegularExpression(
"^("
"tupdate|"
"tmacupd|"
"tmac32upd|"
"tlinuxupd|"
"tlinux32upd"
")\\d+(_[a-z\\d]+)?$",
QRegularExpression::CaseInsensitiveOption
).match(info.fileName()).hasMatch()) {
return info.absoluteFilePath();
}
}
return QString();
}
} // namespace
class Updater : public base::has_weak_ptr {
public:
using Progress = UpdateChecker::Progress;
using State = UpdateChecker::State;
Updater();
rpl::producer<> checking() const;
rpl::producer<> isLatest() const;
rpl::producer<Progress> progress() const;
rpl::producer<> failed() const;
rpl::producer<> ready() const;
void start(bool forceWait);
void stop();
void test();
State state() const;
int already() const;
int size() const;
// Thread-safe methods.
void onProgress(Progress progress);
void onFailed();
void onReady();
~Updater();
private:
class Private;
void check();
void handleFailed();
void handleReady();
void gotResponse();
void gotFailure(QNetworkReply::NetworkError e);
void clearSentRequest();
void requestTimeout();
void startDownloadThread(
uint64 availableVersion,
bool isAvailableBeta,
QString url);
bool checkOldResponse(const QByteArray &response);
bool checkResponse(const QByteArray &response);
bool _testing = false;
bool _isReady = false;
base::Timer _timer;
base::Timer _retryTimer;
rpl::event_stream<> _checking;
rpl::event_stream<> _isLatest;
rpl::event_stream<Progress> _progress;
rpl::event_stream<> _failed;
rpl::event_stream<> _ready;
std::unique_ptr<QNetworkAccessManager> _manager;
QNetworkReply *_reply = nullptr;
std::unique_ptr<QThread> _thread;
Private *_private = nullptr;
rpl::lifetime _lifetime;
};
class Updater::Private : public QObject {
public:
Private(
not_null<Updater*> parent,
not_null<QThread*> thread,
const QString &url);
void unpackUpdate();
// Thread-safe methods.
int already() const;
int size() const;
private:
void start();
void sendRequest();
void initOutput();
void gotMetaData();
void partFinished(qint64 got, qint64 total);
void partFailed(QNetworkReply::NetworkError e);
void fatalFail();
not_null<Updater*> _parent;
QString _url;
QNetworkAccessManager _manager;
std::unique_ptr<QNetworkReply> _reply;
int _already = 0;
int _size = 0;
QFile _output;
mutable QMutex _mutex;
};
Updater::Updater()
: _timer([=] { check(); })
, _retryTimer([=] { requestTimeout(); }) {
failed() | rpl::start_with_next([=] {
handleFailed();
}, _lifetime);
ready() | rpl::start_with_next([=] {
handleReady();
}, _lifetime);
}
rpl::producer<> Updater::checking() const {
return _checking.events();
}
rpl::producer<> Updater::isLatest() const {
return _isLatest.events();
}
auto Updater::progress() const
-> rpl::producer<Progress> {
return _progress.events();
}
rpl::producer<> Updater::failed() const {
return _failed.events();
}
rpl::producer<> Updater::ready() const {
return _ready.events();
}
void Updater::onProgress(Progress progress) {
crl::on_main(this, [=] {
_progress.fire_copy(progress);
});
}
void Updater::onFailed() {
crl::on_main(this, [=] {
_failed.fire({});
});
}
void Updater::onReady() {
crl::on_main(this, [=] {
_ready.fire({});
});
}
void Updater::check() {
start(false);
}
void Updater::gotResponse() {
if (!_reply || _thread) {
return;
}
cSetLastUpdateCheck(unixtime());
const auto response = _reply->readAll();
if (response.size() >= kMaxResponseSize) {
LOG(("App Error: Bad update map size: %1").arg(response.size()));
gotFailure(QNetworkReply::UnknownContentError);
return;
}
if (!checkOldResponse(response)) {
if (!checkResponse(response)) {
gotFailure(QNetworkReply::UnknownContentError);
return;
}
}
clearSentRequest();
if (!_thread) {
if (const auto update = FindUpdateFile(); !update.isEmpty()) {
QFile(update).remove();
}
_isLatest.fire({});
}
start(true);
Local::writeSettings();
}
void Updater::gotFailure(QNetworkReply::NetworkError e) {
LOG(("App Error: could not get current version (update check): %1").arg(e));
if (const auto reply = base::take(_reply)) {
reply->deleteLater();
}
_failed.fire({});
start(true);
}
bool Updater::checkOldResponse(const QByteArray &response) {
const auto string = QString::fromLatin1(response);
const auto old = QRegularExpression(
qsl("^\\s*(\\d+)\\s*:\\s*([\\x21-\\x7f]+)\\s*$")
).match(string);
if (!old.hasMatch()) {
return false;
}
const auto availableVersion = old.captured(1).toULongLong();
const auto url = old.captured(2);
const auto isAvailableBeta = url.startsWith(qstr("beta_"));
startDownloadThread(
availableVersion,
isAvailableBeta,
isAvailableBeta ? url.mid(5) + "_{signature}" : url);
return true;
}
bool Updater::checkResponse(const QByteArray &response) {
auto error = QJsonParseError{ 0, QJsonParseError::NoError };
const auto document = QJsonDocument::fromJson(response, &error);
if (error.error != QJsonParseError::NoError) {
LOG(("Update Error: Failed to parse response JSON, error: %1"
).arg(error.errorString()));
return false;
} else if (!document.isObject()) {
LOG(("Update Error: Not an object received in response JSON."));
return false;
}
const auto platforms = document.object();
const auto platform = [&] {
switch (cPlatform()) {
case dbipWindows: return "win";
case dbipMac: return "mac";
case dbipMacOld: return "mac32";
case dbipLinux64: return "linux";
case dbipLinux32: return "linux32";
}
Unexpected("Platform in Updater::checkResponse.");
}();
const auto it = platforms.constFind(platform);
if (it == platforms.constEnd()) {
LOG(("Update Error: Platform '%1' not found in response."
).arg(platform));
return false;
} else if (!(*it).isObject()) {
LOG(("Update Error: Not an object found for platform '%1'."
).arg(platform));
return false;
}
const auto types = (*it).toObject();
const auto list = [&]() -> std::vector<QString> {
if (cBetaVersion()) {
return { "alpha", "beta", "stable" };
} else if (cAlphaVersion()) {
return { "beta", "stable" };
}
return { "stable" };
}();
auto bestIsAvailableBeta = false;
auto bestAvailableVersion = 0ULL;
auto bestLink = QString();
for (const auto &type : list) {
const auto it = types.constFind(type);
if (it == types.constEnd()) {
continue;
} else if (!(*it).isObject()) {
LOG(("Update Error: Not an object found for '%1:%2'."
).arg(platform).arg(type));
return false;
}
const auto map = (*it).toObject();
const auto key = _testing ? "testing" : "released";
const auto version = map.constFind(key);
const auto link = map.constFind("link");
if (version == map.constEnd()) {
continue;
} else if (link == map.constEnd()) {
LOG(("Update Error: Link not found for '%1:%2'."
).arg(platform).arg(type));
return false;
} else if (!(*link).isString()) {
LOG(("Update Error: Link is not a string for '%1:%2'."
).arg(platform).arg(type));
return false;
}
const auto isAvailableBeta = (type == "alpha");
const auto availableVersion = [&] {
if ((*version).isString()) {
return (*version).toString().toULongLong();
} else if ((*version).isDouble()) {
return uint64(std::round((*version).toDouble()));
}
return 0ULL;
}();
if (!availableVersion) {
LOG(("Update Error: Version is not valid for '%1:%2:%3'."
).arg(platform).arg(type).arg(key));
return false;
}
const auto compare = isAvailableBeta
? availableVersion
: availableVersion * 1000;
const auto bestCompare = bestIsAvailableBeta
? bestAvailableVersion
: bestAvailableVersion * 1000;
if (compare > bestCompare) {
bestAvailableVersion = availableVersion;
bestIsAvailableBeta = isAvailableBeta;
bestLink = (*link).toString();
}
}
if (!bestAvailableVersion) {
LOG(("Update Error: No valid entry found for platform '%1'."
).arg(platform));
return false;
}
startDownloadThread(
bestAvailableVersion,
bestIsAvailableBeta,
Local::readAutoupdatePrefix() + bestLink);
return true;
}
void Updater::startDownloadThread(
uint64 availableVersion,
bool isAvailableBeta,
QString url) {
const auto myVersion = isAvailableBeta
? cBetaVersion()
: uint64(AppVersion);
const auto validVersion = (cBetaVersion() || !isAvailableBeta);
if (!validVersion || availableVersion <= myVersion) {
return;
}
const auto versionUrl = url.replace(
"{version}",
QString::number(availableVersion));
const auto finalUrl = isAvailableBeta
? QString(versionUrl).replace(
"{signature}",
countBetaVersionSignature(availableVersion))
: versionUrl;
_thread = std::make_unique<QThread>();
_private = new Private(
this,
_thread.get(),
finalUrl);
_thread->start();
}
void Updater::handleReady() {
_isReady = true;
stop();
cSetLastUpdateCheck(unixtime());
Local::writeSettings();
}
void Updater::handleFailed() {
stop();
cSetLastUpdateCheck(unixtime());
Local::writeSettings();
}
auto Updater::state() const -> State {
if (_isReady) {
return State::Ready;
} else if (!_thread) {
return State::None;
}
return State::Download;
}
int Updater::size() const {
return _private ? _private->size() : 0;
}
int Updater::already() const {
return _private ? _private->already() : 0;
}
void Updater::clearSentRequest() {
const auto reply = base::take(_reply);
if (!reply) {
return;
}
reply->disconnect(reply, &QNetworkReply::finished, nullptr, nullptr);
reply->disconnect(reply, QNetworkReply_error, nullptr, nullptr);
reply->abort();
reply->deleteLater();
_manager = nullptr;
}
void Updater::stop() {
clearSentRequest();
if (const auto checker = base::take(_private)) {
InvokeQueued(checker, [=] { checker->deleteLater(); });
if (const auto thread = base::take(_thread)) {
thread->quit();
thread->wait();
}
}
}
void Updater::start(bool forceWait) {
if (!Sandbox::started() || _isReady) {
return;
}
_timer.cancel();
if (_thread || _reply || !cAutoUpdate() || cExeName().isEmpty()) {
return;
}
_retryTimer.cancel();
const auto constDelay = cBetaVersion() ? 600 : UpdateDelayConstPart;
const auto randDelay = cBetaVersion() ? 300 : UpdateDelayRandPart;
const auto updateInSecs = cLastUpdateCheck()
+ constDelay
+ int(rand() % randDelay)
- unixtime();
auto sendRequest = (updateInSecs <= 0)
|| (updateInSecs > constDelay + randDelay);
if (!sendRequest && !forceWait) {
if (!FindUpdateFile().isEmpty()) {
sendRequest = true;
}
}
if (cManyInstance() && !cDebug()) {
// Only main instance is updating.
return;
}
if (sendRequest) {
clearSentRequest();
auto url = QUrl(Local::readAutoupdatePrefix() + qstr("/current"));
DEBUG_LOG(("Update Info: requesting update state from '%1'"
).arg(url.toDisplayString()));
const auto request = QNetworkRequest(url);
_manager = std::make_unique<QNetworkAccessManager>();
_reply = _manager->get(request);
_reply->connect(_reply, &QNetworkReply::finished, [=] {
gotResponse();
});
_reply->connect(_reply, QNetworkReply_error, [=](auto e) {
gotFailure(e);
});
_checking.fire({});
_retryTimer.callOnce(kCheckTimeout);
} else {
_timer.callOnce((updateInSecs + 5) * TimeMs(1000));
}
}
void Updater::test() {
_testing = true;
cSetLastUpdateCheck(0);
start(false);
}
void Updater::requestTimeout() {
if (_reply) {
stop();
_failed.fire({});
cSetLastUpdateCheck(0);
_timer.callOnce(kCheckTimeout);
}
}
Updater::~Updater() {
stop();
}
UpdateChecker::UpdateChecker()
: _updater(GetUpdaterInstance()) {
}
rpl::producer<> UpdateChecker::checking() const {
return _updater->checking();
}
rpl::producer<> UpdateChecker::isLatest() const {
return _updater->isLatest();
}
auto UpdateChecker::progress() const
-> rpl::producer<Progress> {
return _updater->progress();
}
rpl::producer<> UpdateChecker::failed() const {
return _updater->failed();
}
rpl::producer<> UpdateChecker::ready() const {
return _updater->ready();
}
void UpdateChecker::start(bool forceWait) {
_updater->start(forceWait);
}
void UpdateChecker::test() {
_updater->test();
}
void UpdateChecker::stop() {
_updater->stop();
}
auto UpdateChecker::state() const
-> State {
return _updater->state();
}
int UpdateChecker::already() const {
return _updater->already();
}
int UpdateChecker::size() const {
return _updater->size();
}
Updater::Private::Private(
not_null<Updater*> parent,
not_null<QThread*> thread,
const QString &url)
: _parent(parent) {
_url = url;
moveToThread(thread);
_manager.moveToThread(thread);
connect(thread, &QThread::started, this, [=] { start(); });
initOutput();
}
void Updater::Private::initOutput() {
auto fileName = QString();
const auto nameRegExp = QRegularExpression(qsl("/([^/\\?]+)(\\?|$)"));
const auto nameMatch = nameRegExp.match(_url);
if (nameMatch.hasMatch()) {
fileName = nameMatch.captured(1).replace(
QRegularExpression(qsl("[^a-zA-Z0-9_\\-]")),
QString());
} else if (fileName.isEmpty()) {
fileName = qsl("tupdate-%1").arg(rand() % 1000000);
}
const auto folder = cWorkingDir() + qsl("tupdates/");
const auto finalName = folder + fileName;
QFileInfo info(finalName);
QDir dir(folder);
if (dir.exists()) {
const auto all = dir.entryInfoList(QDir::Files);
for (auto i = all.begin(), e = all.end(); i != e; ++i) {
if (i->absoluteFilePath() != info.absoluteFilePath()) {
QFile::remove(i->absoluteFilePath());
}
}
} else {
dir.mkdir(dir.absolutePath());
}
_output.setFileName(finalName);
if (info.exists()) {
uint64 fullSize = info.size();
if (fullSize < INT_MAX) {
int32 goodSize = (int32)fullSize;
if (goodSize % UpdateChunk) {
goodSize = goodSize - (goodSize % UpdateChunk);
if (goodSize) {
if (_output.open(QIODevice::ReadOnly)) {
QByteArray goodData = _output.readAll().mid(0, goodSize);
_output.close();
if (_output.open(QIODevice::WriteOnly)) {
_output.write(goodData);
_output.close();
QMutexLocker lock(&_mutex);
_already = goodSize;
}
}
}
} else {
QMutexLocker lock(&_mutex);
_already = goodSize;
}
}
if (!_already) {
QFile::remove(finalName);
}
}
}
void Updater::Private::start() {
sendRequest();
}
void Updater::Private::sendRequest() {
auto request = QNetworkRequest(_url);
const auto rangeHeaderValue = "bytes="
+ QByteArray::number(_already)
+ "-";
request.setRawHeader("Range", rangeHeaderValue);
request.setAttribute(
QNetworkRequest::HttpPipeliningAllowedAttribute,
true);
_reply.reset(_manager.get(request));
connect(
_reply.get(),
&QNetworkReply::downloadProgress,
this,
&Private::partFinished);
connect(_reply.get(), QNetworkReply_error, [=](auto error) {
partFailed(error);
});
connect(_reply.get(), &QNetworkReply::metaDataChanged, [=] {
gotMetaData();
});
}
void Updater::Private::gotMetaData() {
const auto pairs = _reply->rawHeaderPairs();
for (const auto pair : pairs) {
if (QString::fromUtf8(pair.first).toLower() == "content-range") {
const auto m = QRegularExpression(qsl("/(\\d+)([^\\d]|$)")).match(QString::fromUtf8(pair.second));
if (m.hasMatch()) {
{
QMutexLocker lock(&_mutex);
_size = m.captured(1).toInt();
}
_parent->onProgress({ _already, _size });
}
}
}
}
int Updater::Private::already() const {
QMutexLocker lock(&_mutex);
return _already;
}
int Updater::Private::size() const {
QMutexLocker lock(&_mutex);
return _size;
}
void Updater::Private::partFinished(qint64 got, qint64 total) {
if (!_reply) return;
QVariant statusCode = _reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);
if (statusCode.isValid()) {
int status = statusCode.toInt();
if (status != 200 && status != 206 && status != 416) {
LOG(("Update Error: Bad HTTP status received in partFinished(): %1").arg(status));
return fatalFail();
}
}
if (!_already && !_size) {
QMutexLocker lock(&_mutex);
_size = total;
}
DEBUG_LOG(("Update Info: part %1 of %2").arg(got).arg(total));
if (!_output.isOpen()) {
if (!_output.open(QIODevice::Append)) {
LOG(("Update Error: Could not open output file '%1' for appending").arg(_output.fileName()));
return fatalFail();
}
}
QByteArray r = _reply->readAll();
if (!r.isEmpty()) {
_output.write(r);
QMutexLocker lock(&_mutex);
_already += r.size();
}
if (got >= total) {
_reply.release()->deleteLater();
_output.close();
unpackUpdate();
} else {
_parent->onProgress({ _already, _size });
}
}
void Updater::Private::partFailed(QNetworkReply::NetworkError e) {
if (!_reply) return;
const auto statusCode = _reply->attribute(
QNetworkRequest::HttpStatusCodeAttribute);
_reply.release()->deleteLater();
if (statusCode.isValid()) {
int status = statusCode.toInt();
if (status == 416) { // Requested range not satisfiable
_output.close();
unpackUpdate();
return;
}
}
LOG(("Update Error: failed to download part starting from %1, error %2").arg(_already).arg(e));
_parent->onFailed();
}
void Updater::Private::fatalFail() {
ClearAll();
_parent->onFailed();
}
//QString winapiErrorWrap() {
// WCHAR errMsg[2048];
// DWORD errorCode = GetLastError();
// LPTSTR errorText = NULL, errorTextDefault = L"(Unknown error)";
// FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&errorText, 0, 0);
// if (!errorText) {
// errorText = errorTextDefault;
// }
// StringCbPrintf(errMsg, sizeof(errMsg), L"Error code: %d, error message: %s", errorCode, errorText);
// if (errorText != errorTextDefault) {
// LocalFree(errorText);
// }
// return QString::fromWCharArray(errMsg);
//}
void Updater::Private::unpackUpdate() {
QByteArray packed;
if (!_output.open(QIODevice::ReadOnly)) {
LOG(("Update Error: cant read updates file!"));
return fatalFail();
}
#ifdef Q_OS_WIN // use Lzma SDK for win
const int32 hSigLen = 128, hShaLen = 20, hPropsLen = LZMA_PROPS_SIZE, hOriginalSizeLen = sizeof(int32), hSize = hSigLen + hShaLen + hPropsLen + hOriginalSizeLen; // header
#else // Q_OS_WIN
const int32 hSigLen = 128, hShaLen = 20, hPropsLen = 0, hOriginalSizeLen = sizeof(int32), hSize = hSigLen + hShaLen + hOriginalSizeLen; // header
#endif // Q_OS_WIN
QByteArray compressed = _output.readAll();
int32 compressedLen = compressed.size() - hSize;
if (compressedLen <= 0) {
LOG(("Update Error: bad compressed size: %1").arg(compressed.size()));
return fatalFail();
}
_output.close();
QString tempDirPath = cWorkingDir() + qsl("tupdates/temp"), readyFilePath = cWorkingDir() + qsl("tupdates/temp/ready");
psDeleteDir(tempDirPath);
QDir tempDir(tempDirPath);
if (tempDir.exists() || QFile(readyFilePath).exists()) {
LOG(("Update Error: cant clear tupdates/temp dir!"));
return fatalFail();
}
uchar sha1Buffer[20];
bool goodSha1 = !memcmp(compressed.constData() + hSigLen, hashSha1(compressed.constData() + hSigLen + hShaLen, compressedLen + hPropsLen + hOriginalSizeLen, sha1Buffer), hShaLen);
if (!goodSha1) {
LOG(("Update Error: bad SHA1 hash of update file!"));
return fatalFail();
}
RSA *pbKey = PEM_read_bio_RSAPublicKey(BIO_new_mem_buf(const_cast<char*>(AppAlphaVersion ? UpdatesPublicAlphaKey : UpdatesPublicKey), -1), 0, 0, 0);
if (!pbKey) {
LOG(("Update Error: cant read public rsa key!"));
return fatalFail();
}
if (RSA_verify(NID_sha1, (const uchar*)(compressed.constData() + hSigLen), hShaLen, (const uchar*)(compressed.constData()), hSigLen, pbKey) != 1) { // verify signature
RSA_free(pbKey);
if (cAlphaVersion() || cBetaVersion()) { // try other public key, if we are in alpha or beta version
pbKey = PEM_read_bio_RSAPublicKey(BIO_new_mem_buf(const_cast<char*>(AppAlphaVersion ? UpdatesPublicKey : UpdatesPublicAlphaKey), -1), 0, 0, 0);
if (!pbKey) {
LOG(("Update Error: cant read public rsa key!"));
return fatalFail();
}
if (RSA_verify(NID_sha1, (const uchar*)(compressed.constData() + hSigLen), hShaLen, (const uchar*)(compressed.constData()), hSigLen, pbKey) != 1) { // verify signature
RSA_free(pbKey);
LOG(("Update Error: bad RSA signature of update file!"));
return fatalFail();
}
} else {
LOG(("Update Error: bad RSA signature of update file!"));
return fatalFail();
}
}
RSA_free(pbKey);
QByteArray uncompressed;
int32 uncompressedLen;
memcpy(&uncompressedLen, compressed.constData() + hSigLen + hShaLen + hPropsLen, hOriginalSizeLen);
uncompressed.resize(uncompressedLen);
size_t resultLen = uncompressed.size();
#ifdef Q_OS_WIN // use Lzma SDK for win
SizeT srcLen = compressedLen;
int uncompressRes = LzmaUncompress((uchar*)uncompressed.data(), &resultLen, (const uchar*)(compressed.constData() + hSize), &srcLen, (const uchar*)(compressed.constData() + hSigLen + hShaLen), LZMA_PROPS_SIZE);
if (uncompressRes != SZ_OK) {
LOG(("Update Error: could not uncompress lzma, code: %1").arg(uncompressRes));
return fatalFail();
}
#else // Q_OS_WIN
lzma_stream stream = LZMA_STREAM_INIT;
lzma_ret ret = lzma_stream_decoder(&stream, UINT64_MAX, LZMA_CONCATENATED);
if (ret != LZMA_OK) {
const char *msg;
switch (ret) {
case LZMA_MEM_ERROR: msg = "Memory allocation failed"; break;
case LZMA_OPTIONS_ERROR: msg = "Specified preset is not supported"; break;
case LZMA_UNSUPPORTED_CHECK: msg = "Specified integrity check is not supported"; break;
default: msg = "Unknown error, possibly a bug"; break;
}
LOG(("Error initializing the decoder: %1 (error code %2)").arg(msg).arg(ret));
return fatalFail();
}
stream.avail_in = compressedLen;
stream.next_in = (uint8_t*)(compressed.constData() + hSize);
stream.avail_out = resultLen;
stream.next_out = (uint8_t*)uncompressed.data();
lzma_ret res = lzma_code(&stream, LZMA_FINISH);
if (stream.avail_in) {
LOG(("Error in decompression, %1 bytes left in _in of %2 whole.").arg(stream.avail_in).arg(compressedLen));
return fatalFail();
} else if (stream.avail_out) {
LOG(("Error in decompression, %1 bytes free left in _out of %2 whole.").arg(stream.avail_out).arg(resultLen));
return fatalFail();
}
lzma_end(&stream);
if (res != LZMA_OK && res != LZMA_STREAM_END) {
const char *msg;
switch (res) {
case LZMA_MEM_ERROR: msg = "Memory allocation failed"; break;
case LZMA_FORMAT_ERROR: msg = "The input data is not in the .xz format"; break;
case LZMA_OPTIONS_ERROR: msg = "Unsupported compression options"; break;
case LZMA_DATA_ERROR: msg = "Compressed file is corrupt"; break;
case LZMA_BUF_ERROR: msg = "Compressed data is truncated or otherwise corrupt"; break;
default: msg = "Unknown error, possibly a bug"; break;
}
LOG(("Error in decompression: %1 (error code %2)").arg(msg).arg(res));
return fatalFail();
}
#endif // Q_OS_WIN
tempDir.mkdir(tempDir.absolutePath());
quint32 version;
{
QDataStream stream(uncompressed);
stream.setVersion(QDataStream::Qt_5_1);
stream >> version;
if (stream.status() != QDataStream::Ok) {
LOG(("Update Error: cant read version from downloaded stream, status: %1").arg(stream.status()));
return fatalFail();
}
quint64 betaVersion = 0;
if (version == 0x7FFFFFFF) { // beta version
stream >> betaVersion;
if (stream.status() != QDataStream::Ok) {
LOG(("Update Error: cant read beta version from downloaded stream, status: %1").arg(stream.status()));
return fatalFail();
}
if (!cBetaVersion() || betaVersion <= cBetaVersion()) {
LOG(("Update Error: downloaded beta version %1 is not greater, than mine %2").arg(betaVersion).arg(cBetaVersion()));
return fatalFail();
}
} else if (int32(version) <= AppVersion) {
LOG(("Update Error: downloaded version %1 is not greater, than mine %2").arg(version).arg(AppVersion));
return fatalFail();
}
quint32 filesCount;
stream >> filesCount;
if (stream.status() != QDataStream::Ok) {
LOG(("Update Error: cant read files count from downloaded stream, status: %1").arg(stream.status()));
return fatalFail();
}
if (!filesCount) {
LOG(("Update Error: update is empty!"));
return fatalFail();
}
for (uint32 i = 0; i < filesCount; ++i) {
QString relativeName;
quint32 fileSize;
QByteArray fileInnerData;
bool executable = false;
stream >> relativeName >> fileSize >> fileInnerData;
#if defined Q_OS_MAC || defined Q_OS_LINUX
stream >> executable;
#endif // Q_OS_MAC || Q_OS_LINUX
if (stream.status() != QDataStream::Ok) {
LOG(("Update Error: cant read file from downloaded stream, status: %1").arg(stream.status()));
return fatalFail();
}
if (fileSize != quint32(fileInnerData.size())) {
LOG(("Update Error: bad file size %1 not matching data size %2").arg(fileSize).arg(fileInnerData.size()));
return fatalFail();
}
QFile f(tempDirPath + '/' + relativeName);
if (!QDir().mkpath(QFileInfo(f).absolutePath())) {
LOG(("Update Error: cant mkpath for file '%1'").arg(tempDirPath + '/' + relativeName));
return fatalFail();
}
if (!f.open(QIODevice::WriteOnly)) {
LOG(("Update Error: cant open file '%1' for writing").arg(tempDirPath + '/' + relativeName));
return fatalFail();
}
auto writtenBytes = f.write(fileInnerData);
if (writtenBytes != fileSize) {
f.close();
LOG(("Update Error: cant write file '%1', desiredSize: %2, write result: %3").arg(tempDirPath + '/' + relativeName).arg(fileSize).arg(writtenBytes));
return fatalFail();
}
f.close();
if (executable) {
QFileDevice::Permissions p = f.permissions();
p |= QFileDevice::ExeOwner | QFileDevice::ExeUser | QFileDevice::ExeGroup | QFileDevice::ExeOther;
f.setPermissions(p);
}
}
// create tdata/version file
tempDir.mkdir(QDir(tempDirPath + qsl("/tdata")).absolutePath());
std::wstring versionString = ((version % 1000) ? QString("%1.%2.%3").arg(int(version / 1000000)).arg(int((version % 1000000) / 1000)).arg(int(version % 1000)) : QString("%1.%2").arg(int(version / 1000000)).arg(int((version % 1000000) / 1000))).toStdWString();
const auto versionNum = VersionInt(version);
const auto versionLen = VersionInt(versionString.size() * sizeof(VersionChar));
VersionChar versionStr[32];
memcpy(versionStr, versionString.c_str(), versionLen);
QFile fVersion(tempDirPath + qsl("/tdata/version"));
if (!fVersion.open(QIODevice::WriteOnly)) {
LOG(("Update Error: cant write version file '%1'").arg(tempDirPath + qsl("/version")));
return fatalFail();
}
fVersion.write((const char*)&versionNum, sizeof(VersionInt));
if (versionNum == 0x7FFFFFFF) { // beta version
fVersion.write((const char*)&betaVersion, sizeof(quint64));
} else {
fVersion.write((const char*)&versionLen, sizeof(VersionInt));
fVersion.write((const char*)&versionStr[0], versionLen);
}
fVersion.close();
}
QFile readyFile(readyFilePath);
if (readyFile.open(QIODevice::WriteOnly)) {
if (readyFile.write("1", 1)) {
readyFile.close();
} else {
LOG(("Update Error: cant write ready file '%1'").arg(readyFilePath));
return fatalFail();
}
} else {
LOG(("Update Error: cant create ready file '%1'").arg(readyFilePath));
return fatalFail();
}
_output.remove();
_parent->onReady();
}
bool checkReadyUpdate() {
QString readyFilePath = cWorkingDir() + qsl("tupdates/temp/ready"), readyPath = cWorkingDir() + qsl("tupdates/temp");
if (!QFile(readyFilePath).exists() || cExeName().isEmpty()) {
if (QDir(cWorkingDir() + qsl("tupdates/ready")).exists() || QDir(cWorkingDir() + qsl("tupdates/temp")).exists()) {
ClearAll();
}
return false;
}
// check ready version
QString versionPath = readyPath + qsl("/tdata/version");
{
QFile fVersion(versionPath);
if (!fVersion.open(QIODevice::ReadOnly)) {
LOG(("Update Error: cant read version file '%1'").arg(versionPath));
ClearAll();
return false;
}
auto versionNum = VersionInt();
if (fVersion.read((char*)&versionNum, sizeof(VersionInt)) != sizeof(VersionInt)) {
LOG(("Update Error: cant read version from file '%1'").arg(versionPath));
ClearAll();
return false;
}
if (versionNum == 0x7FFFFFFF) { // beta version
quint64 betaVersion = 0;
if (fVersion.read((char*)&betaVersion, sizeof(quint64)) != sizeof(quint64)) {
LOG(("Update Error: cant read beta version from file '%1'").arg(versionPath));
ClearAll();
return false;
}
if (!cBetaVersion() || betaVersion <= cBetaVersion()) {
LOG(("Update Error: cant install beta version %1 having beta version %2").arg(betaVersion).arg(cBetaVersion()));
ClearAll();
return false;
}
} else if (versionNum <= AppVersion) {
LOG(("Update Error: cant install version %1 having version %2").arg(versionNum).arg(AppVersion));
ClearAll();
return false;
}
fVersion.close();
}
#ifdef Q_OS_WIN
QString curUpdater = (cExeDir() + qsl("Updater.exe"));
QFileInfo updater(cWorkingDir() + qsl("tupdates/temp/Updater.exe"));
#elif defined Q_OS_MAC // Q_OS_WIN
QString curUpdater = (cExeDir() + cExeName() + qsl("/Contents/Frameworks/Updater"));
QFileInfo updater(cWorkingDir() + qsl("tupdates/temp/Telegram.app/Contents/Frameworks/Updater"));
#elif defined Q_OS_LINUX // Q_OS_MAC
QString curUpdater = (cExeDir() + qsl("Updater"));
QFileInfo updater(cWorkingDir() + qsl("tupdates/temp/Updater"));
#endif // Q_OS_LINUX
if (!updater.exists()) {
QFileInfo current(curUpdater);
if (!current.exists()) {
ClearAll();
return false;
}
if (!QFile(current.absoluteFilePath()).copy(updater.absoluteFilePath())) {
ClearAll();
return false;
}
}
#ifdef Q_OS_WIN
if (CopyFile(updater.absoluteFilePath().toStdWString().c_str(), curUpdater.toStdWString().c_str(), FALSE) == FALSE) {
DWORD errorCode = GetLastError();
if (errorCode == ERROR_ACCESS_DENIED) { // we are in write-protected dir, like Program Files
cSetWriteProtected(true);
return true;
} else {
ClearAll();
return false;
}
}
if (DeleteFile(updater.absoluteFilePath().toStdWString().c_str()) == FALSE) {
ClearAll();
return false;
}
#elif defined Q_OS_MAC // Q_OS_WIN
QDir().mkpath(QFileInfo(curUpdater).absolutePath());
DEBUG_LOG(("Update Info: moving %1 to %2...").arg(updater.absoluteFilePath()).arg(curUpdater));
if (!objc_moveFile(updater.absoluteFilePath(), curUpdater)) {
ClearAll();
return false;
}
#elif defined Q_OS_LINUX // Q_OS_MAC
if (!linuxMoveFile(QFile::encodeName(updater.absoluteFilePath()).constData(), QFile::encodeName(curUpdater).constData())) {
ClearAll();
return false;
}
#endif // Q_OS_LINUX
return true;
}
#endif // !TDESKTOP_DISABLE_AUTOUPDATE
QString countBetaVersionSignature(uint64 version) { // duplicated in packer.cpp
if (cBetaPrivateKey().isEmpty()) {
LOG(("Error: Trying to count beta version signature without beta private key!"));
return QString();
}
QByteArray signedData = (qstr("TelegramBeta_") + QString::number(version, 16).toLower()).toUtf8();
static const int32 shaSize = 20, keySize = 128;
uchar sha1Buffer[shaSize];
hashSha1(signedData.constData(), signedData.size(), sha1Buffer); // count sha1
uint32 siglen = 0;
RSA *prKey = PEM_read_bio_RSAPrivateKey(BIO_new_mem_buf(const_cast<char*>(cBetaPrivateKey().constData()), -1), 0, 0, 0);
if (!prKey) {
LOG(("Error: Could not read beta private key!"));
return QString();
}
if (RSA_size(prKey) != keySize) {
LOG(("Error: Bad beta private key size: %1").arg(RSA_size(prKey)));
RSA_free(prKey);
return QString();
}
QByteArray signature;
signature.resize(keySize);
if (RSA_sign(NID_sha1, (const uchar*)(sha1Buffer), shaSize, (uchar*)(signature.data()), &siglen, prKey) != 1) { // count signature
LOG(("Error: Counting beta version signature failed!"));
RSA_free(prKey);
return QString();
}
RSA_free(prKey);
if (siglen != keySize) {
LOG(("Error: Bad beta version signature length: %1").arg(siglen));
return QString();
}
signature = signature.toBase64(QByteArray::Base64UrlEncoding | QByteArray::OmitTrailingEquals);
signature = signature.replace('-', '8').replace('_', 'B');
return QString::fromUtf8(signature.mid(19, 32));
}
} // namespace Core