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Limit DownloadHandler max redirection to 20

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Closes #10219.
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Chocobo1 2019-02-13 21:56:48 +08:00
parent 409557ef30
commit 8fe1ff87f1
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GPG key ID: 210D9C873253A68C
2 changed files with 11 additions and 1 deletions
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11
src/base/net/downloadhandler.cpp
View file

@ -44,6 +44,8 @@
namespace
{
const int MAX_REDIRECTIONS = 20; // the common value for web browsers
bool saveToFile(const QByteArray &replyData, QString &filePath)
{
QTemporaryFile tmpfile {Utils::Fs::tempPath() + "XXXXXX"};
@ -155,6 +157,12 @@ void Net::DownloadHandler::checkDownloadSize(qint64 bytesReceived, qint64 bytesT
void Net::DownloadHandler::handleRedirection(const QUrl &newUrl)
{
if (m_redirectionCounter >= MAX_REDIRECTIONS) {
emit downloadFailed(url(), tr("Exceeded max redirections (%1)").arg(MAX_REDIRECTIONS));
this->deleteLater();
return;
}
// Resolve relative urls
const QUrl resolvedUrl = (newUrl.isRelative()) ? m_reply->url().resolved(newUrl) : newUrl;
const QString newUrlString = resolvedUrl.toString();
@ -173,7 +181,8 @@ void Net::DownloadHandler::handleRedirection(const QUrl &newUrl)
return;
}
const DownloadHandler *redirected = m_manager->download(DownloadRequest(m_downloadRequest).url(newUrlString));
DownloadHandler *redirected = m_manager->download(DownloadRequest(m_downloadRequest).url(newUrlString));
redirected->m_redirectionCounter = (m_redirectionCounter + 1);
connect(redirected, &DownloadHandler::destroyed, this, &DownloadHandler::deleteLater);
connect(redirected, &DownloadHandler::downloadFailed, this, [this](const QString &, const QString &reason)
{

1
src/base/net/downloadhandler.h
View file

@ -74,6 +74,7 @@ namespace Net
QNetworkReply *m_reply;
DownloadManager *m_manager;
const DownloadRequest m_downloadRequest;
short m_redirectionCounter = 0;
};
}