overte/assignment-client/src/assets/UploadAssetTask.cpp
Atlante45 46449256ce CR
2018-02-09 11:38:46 -08:00

117 lines
4.1 KiB
C++

//
// UploadAssetTask.cpp
// assignment-client/src/assets
//
// Created by Stephen Birarda on 2015-08-28.
// Copyright 2015 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#include "UploadAssetTask.h"
#include <QtCore/QBuffer>
#include <QtCore/QFile>
#include <AssetUtils.h>
#include <NodeList.h>
#include <NLPacketList.h>
#include "ClientServerUtils.h"
UploadAssetTask::UploadAssetTask(QSharedPointer<ReceivedMessage> receivedMessage, SharedNodePointer senderNode,
const QDir& resourcesDir, uint64_t filesizeLimit) :
_receivedMessage(receivedMessage),
_senderNode(senderNode),
_resourcesDir(resourcesDir),
_filesizeLimit(filesizeLimit)
{
}
void UploadAssetTask::run() {
auto data = _receivedMessage->getMessage();
QBuffer buffer { &data };
buffer.open(QIODevice::ReadOnly);
MessageID messageID;
buffer.read(reinterpret_cast<char*>(&messageID), sizeof(messageID));
uint64_t fileSize;
buffer.read(reinterpret_cast<char*>(&fileSize), sizeof(fileSize));
if (_senderNode) {
qDebug() << "UploadAssetTask reading a file of " << fileSize << "bytes from" << uuidStringWithoutCurlyBraces(_senderNode->getUUID());
} else {
qDebug() << "UploadAssetTask reading a file of " << fileSize << "bytes from" << _receivedMessage->getSenderSockAddr();
}
auto replyPacket = NLPacket::create(PacketType::AssetUploadReply, -1, true);
replyPacket->writePrimitive(messageID);
if (fileSize > _filesizeLimit) {
replyPacket->writePrimitive(AssetUtils::AssetServerError::AssetTooLarge);
} else {
QByteArray fileData = buffer.read(fileSize);
auto hash = AssetUtils::hashData(fileData);
auto hexHash = hash.toHex();
if (_senderNode) {
qDebug() << "Hash for uploaded file from" << uuidStringWithoutCurlyBraces(_senderNode->getUUID()) << "is: (" << hexHash << ")";
} else {
qDebug() << "Hash for uploaded file from" << _receivedMessage->getSenderSockAddr() << "is: (" << hexHash << ")";
}
QFile file { _resourcesDir.filePath(QString(hexHash)) };
bool existingCorrectFile = false;
if (file.exists()) {
// check if the local file has the correct contents, otherwise we overwrite
if (file.open(QIODevice::ReadOnly) && AssetUtils::hashData(file.readAll()) == hash) {
qDebug() << "Not overwriting existing verified file: " << hexHash;
existingCorrectFile = true;
replyPacket->writePrimitive(AssetUtils::AssetServerError::NoError);
replyPacket->write(hash);
} else {
qDebug() << "Overwriting an existing file whose contents did not match the expected hash: " << hexHash;
file.close();
}
}
if (!existingCorrectFile) {
if (file.open(QIODevice::WriteOnly) && file.write(fileData) == qint64(fileSize)) {
qDebug() << "Wrote file" << hexHash << "to disk. Upload complete";
file.close();
replyPacket->writePrimitive(AssetUtils::AssetServerError::NoError);
replyPacket->write(hash);
} else {
qWarning() << "Failed to upload or write to file" << hexHash << " - upload failed.";
// upload has failed - remove the file and return an error
auto removed = file.remove();
if (!removed) {
qWarning() << "Removal of failed upload file" << hexHash << "failed.";
}
replyPacket->writePrimitive(AssetUtils::AssetServerError::FileOperationFailed);
}
}
}
auto nodeList = DependencyManager::get<NodeList>();
if (_senderNode) {
nodeList->sendPacket(std::move(replyPacket), *_senderNode);
} else {
nodeList->sendPacket(std::move(replyPacket), _receivedMessage->getSenderSockAddr());
}
}