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Simplify Upload and Download

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Signed-off-by: Trial97 <alexandru.tripon97@gmail.com>
This commit is contained in:
Trial97
2023-06-27 01:01:02 +03:00
parent b142407b21
commit 385babb458
9 changed files with 451 additions and 533 deletions
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272
launcher/net/Download.cpp
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@ -65,6 +65,7 @@ namespace Net {
auto Download::makeCached(QUrl url, MetaEntryPtr entry, Options options) -> Download::Ptr
{
auto dl = makeShared<Download>();
dl->logCat = taskDownloadLogC;
dl->m_url = url;
dl->setObjectName(QString("CACHE:") + url.toString());
dl->m_options = options;
@ -78,6 +79,7 @@ auto Download::makeCached(QUrl url, MetaEntryPtr entry, Options options) -> Down
auto Download::makeByteArray(QUrl url, std::shared_ptr<QByteArray> output, Options options) -> Download::Ptr
{
auto dl = makeShared<Download>();
dl->logCat = taskDownloadLogC;
dl->m_url = url;
dl->setObjectName(QString("BYTES:") + url.toString());
dl->m_options = options;
@ -88,6 +90,7 @@ auto Download::makeByteArray(QUrl url, std::shared_ptr<QByteArray> output, Optio
auto Download::makeFile(QUrl url, QString path, Options options) -> Download::Ptr
{
auto dl = makeShared<Download>();
dl->logCat = taskDownloadLogC;
dl->m_url = url;
dl->setObjectName(QString("FILE:") + url.toString());
dl->m_options = options;
@ -95,271 +98,8 @@ auto Download::makeFile(QUrl url, QString path, Options options) -> Download::Pt
return dl;
}
void Download::addValidator(Validator* v)
QNetworkReply* Download::getReply(QNetworkRequest& request)
{
m_sink->addValidator(v);
}
void Download::executeTask()
{
init();
setStatus(tr("Downloading %1").arg(StringUtils::truncateUrlHumanFriendly(m_url, 80)));
if (getState() == Task::State::AbortedByUser) {
qCWarning(taskDownloadLogC) << getUid().toString() << "Attempt to start an aborted Download:" << m_url.toString();
emitAborted();
return;
}
QNetworkRequest request(m_url);
m_state = m_sink->init(request);
switch (m_state) {
case State::Succeeded:
qCDebug(taskDownloadLogC) << getUid().toString() << "Download cache hit " << m_url.toString();
emit succeeded();
emit finished();
return;
case State::Running:
qCDebug(taskDownloadLogC) << getUid().toString() << "Downloading " << m_url.toString();
break;
case State::Inactive:
case State::Failed:
emitFailed();
return;
case State::AbortedByUser:
emitAborted();
return;
}
#if defined (LAUNCHER_APPLICATION)
auto user_agent = APPLICATION->getUserAgent();
#else
auto user_agent = BuildConfig.USER_AGENT;
#endif
request.setHeader(QNetworkRequest::UserAgentHeader, user_agent.toUtf8());
for ( auto& header_proxy : m_headerProxies ) {
header_proxy->writeHeaders(request);
}
// TODO remove duplication
#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
request.setTransferTimeout();
#endif
m_last_progress_time = m_clock.now();
m_last_progress_bytes = 0;
QNetworkReply* rep = m_network->get(request);
m_reply.reset(rep);
connect(rep, &QNetworkReply::downloadProgress, this, &Download::downloadProgress);
connect(rep, &QNetworkReply::finished, this, &Download::downloadFinished);
#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0) // QNetworkReply::errorOccurred added in 5.15
connect(rep, &QNetworkReply::errorOccurred, this, &Download::downloadError);
#else
connect(rep, QOverload<QNetworkReply::NetworkError>::of(&QNetworkReply::error), this, &Download::downloadError);
#endif
connect(rep, &QNetworkReply::sslErrors, this, &Download::sslErrors);
connect(rep, &QNetworkReply::readyRead, this, &Download::downloadReadyRead);
}
void Download::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
{
auto now = m_clock.now();
auto elapsed = now - m_last_progress_time;
// use milliseconds for speed precision
auto elapsed_ms = std::chrono::duration_cast<std::chrono::milliseconds>(elapsed);
auto bytes_received_since = bytesReceived - m_last_progress_bytes;
auto dl_speed_bps = (double)bytes_received_since / elapsed_ms.count() * 1000;
auto remaining_time_s = (bytesTotal - bytesReceived) / dl_speed_bps;
//: Current amount of bytes downloaded, out of the total amount of bytes in the download
QString dl_progress =
tr("%1 / %2").arg(StringUtils::humanReadableFileSize(bytesReceived)).arg(StringUtils::humanReadableFileSize(bytesTotal));
QString dl_speed_str;
if (elapsed_ms.count() > 0) {
auto str_eta = bytesTotal > 0 ? Time::humanReadableDuration(remaining_time_s) : tr("unknown");
//: Download speed, in bytes per second (remaining download time in parenthesis)
dl_speed_str =
tr("%1 /s (%2)").arg(StringUtils::humanReadableFileSize(dl_speed_bps)).arg(str_eta);
} else {
//: Download speed at 0 bytes per second
dl_speed_str = tr("0 B/s");
}
setDetails(dl_progress + "\n" + dl_speed_str);
setProgress(bytesReceived, bytesTotal);
}
void Download::downloadError(QNetworkReply::NetworkError error)
{
if (error == QNetworkReply::OperationCanceledError) {
qCCritical(taskDownloadLogC) << getUid().toString() << "Aborted " << m_url.toString();
m_state = State::AbortedByUser;
} else {
if (m_options & Option::AcceptLocalFiles) {
if (m_sink->hasLocalData()) {
m_state = State::Succeeded;
return;
}
}
// error happened during download.
qCCritical(taskDownloadLogC) << getUid().toString() << "Failed " << m_url.toString() << " with reason " << error;
m_state = State::Failed;
}
}
void Download::sslErrors(const QList<QSslError>& errors)
{
int i = 1;
for (auto error : errors) {
qCCritical(taskDownloadLogC) << getUid().toString() << "Download" << m_url.toString() << "SSL Error #" << i << " : "
<< error.errorString();
auto cert = error.certificate();
qCCritical(taskDownloadLogC) << getUid().toString() << "Certificate in question:\n" << cert.toText();
i++;
}
}
auto Download::handleRedirect() -> bool
{
QUrl redirect = m_reply->header(QNetworkRequest::LocationHeader).toUrl();
if (!redirect.isValid()) {
if (!m_reply->hasRawHeader("Location")) {
// no redirect -> it's fine to continue
return false;
}
// there is a Location header, but it's not correct. we need to apply some workarounds...
QByteArray redirectBA = m_reply->rawHeader("Location");
if (redirectBA.size() == 0) {
// empty, yet present redirect header? WTF?
return false;
}
QString redirectStr = QString::fromUtf8(redirectBA);
if (redirectStr.startsWith("//")) {
/*
* IF the URL begins with //, we need to insert the URL scheme.
* See: https://bugreports.qt.io/browse/QTBUG-41061
* See: http://tools.ietf.org/html/rfc3986#section-4.2
*/
redirectStr = m_reply->url().scheme() + ":" + redirectStr;
} else if (redirectStr.startsWith("/")) {
/*
* IF the URL begins with /, we need to process it as a relative URL
*/
auto url = m_reply->url();
url.setPath(redirectStr, QUrl::TolerantMode);
redirectStr = url.toString();
}
/*
* Next, make sure the URL is parsed in tolerant mode. Qt doesn't parse the location header in tolerant mode, which causes issues.
* FIXME: report Qt bug for this
*/
redirect = QUrl(redirectStr, QUrl::TolerantMode);
if (!redirect.isValid()) {
qCWarning(taskDownloadLogC) << getUid().toString() << "Failed to parse redirect URL:" << redirectStr;
downloadError(QNetworkReply::ProtocolFailure);
return false;
}
qCDebug(taskDownloadLogC) << getUid().toString() << "Fixed location header:" << redirect;
} else {
qCDebug(taskDownloadLogC) << getUid().toString() << "Location header:" << redirect;
}
m_url = QUrl(redirect.toString());
qCDebug(taskDownloadLogC) << getUid().toString() << "Following redirect to " << m_url.toString();
startAction(m_network);
return true;
}
void Download::downloadFinished()
{
// handle HTTP redirection first
if (handleRedirect()) {
qCDebug(taskDownloadLogC) << getUid().toString() << "Download redirected:" << m_url.toString();
return;
}
// if the download failed before this point ...
if (m_state == State::Succeeded) // pretend to succeed so we continue processing :)
{
qCDebug(taskDownloadLogC) << getUid().toString() << "Download failed but we are allowed to proceed:" << m_url.toString();
m_sink->abort();
m_reply.reset();
emit succeeded();
emit finished();
return;
} else if (m_state == State::Failed) {
qCDebug(taskDownloadLogC) << getUid().toString() << "Download failed in previous step:" << m_url.toString();
m_sink->abort();
m_reply.reset();
emit failed("");
emit finished();
return;
} else if (m_state == State::AbortedByUser) {
qCDebug(taskDownloadLogC) << getUid().toString() << "Download aborted in previous step:" << m_url.toString();
m_sink->abort();
m_reply.reset();
emit aborted();
emit finished();
return;
}
// make sure we got all the remaining data, if any
auto data = m_reply->readAll();
if (data.size()) {
qCDebug(taskDownloadLogC) << getUid().toString() << "Writing extra" << data.size() << "bytes";
m_state = m_sink->write(data);
}
// otherwise, finalize the whole graph
m_state = m_sink->finalize(*m_reply.get());
if (m_state != State::Succeeded) {
qCDebug(taskDownloadLogC) << getUid().toString() << "Download failed to finalize:" << m_url.toString();
m_sink->abort();
m_reply.reset();
emit failed("");
emit finished();
return;
}
m_reply.reset();
qCDebug(taskDownloadLogC) << getUid().toString() << "Download succeeded:" << m_url.toString();
emit succeeded();
emit finished();
}
void Download::downloadReadyRead()
{
if (m_state == State::Running) {
auto data = m_reply->readAll();
m_state = m_sink->write(data);
if (m_state == State::Failed) {
qCCritical(taskDownloadLogC) << getUid().toString() << "Failed to process response chunk";
}
// qDebug() << "Download" << m_url.toString() << "gained" << data.size() << "bytes";
} else {
qCCritical(taskDownloadLogC) << getUid().toString() << "Cannot write download data! illegal status " << m_status;
}
}
} // namespace Net
auto Net::Download::abort() -> bool
{
if (m_reply) {
m_reply->abort();
} else {
m_state = State::AbortedByUser;
}
return true;
return m_network->get(request);
}
} // namespace Net