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81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
//
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// AssetUtils.h
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// libraries/networking/src
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//
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// Created by Clément Brisset on 10/12/2015
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// Copyright 2015 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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#include "AssetUtils.h"
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#include <memory>
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#include <QtCore/QCryptographicHash>
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#include <QtNetwork/QAbstractNetworkCache>
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#include "NetworkAccessManager.h"
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#include "NetworkLogging.h"
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#include "ResourceManager.h"
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QUrl getATPUrl(const QString& hash) {
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return QUrl(QString("%1:%2").arg(URL_SCHEME_ATP, hash));
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}
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QByteArray hashData(const QByteArray& data) {
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return QCryptographicHash::hash(data, QCryptographicHash::Sha256);
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}
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QByteArray loadFromCache(const QUrl& url) {
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if (auto cache = NetworkAccessManager::getInstance().cache()) {
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// caller is responsible for the deletion of the ioDevice, hence the unique_ptr
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if (auto ioDevice = std::unique_ptr<QIODevice>(cache->data(url))) {
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qCDebug(asset_client) << url.toDisplayString() << "loaded from disk cache.";
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return ioDevice->readAll();
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} else {
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qCDebug(asset_client) << url.toDisplayString() << "not in disk cache";
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}
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} else {
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qCWarning(asset_client) << "No disk cache to load assets from.";
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}
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return QByteArray();
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}
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bool saveToCache(const QUrl& url, const QByteArray& file) {
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if (auto cache = NetworkAccessManager::getInstance().cache()) {
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if (!cache->metaData(url).isValid()) {
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QNetworkCacheMetaData metaData;
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metaData.setUrl(url);
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metaData.setSaveToDisk(true);
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metaData.setLastModified(QDateTime::currentDateTime());
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metaData.setExpirationDate(QDateTime()); // Never expires
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// ioDevice is managed by the cache and should either be passed back to insert or remove!
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if (auto ioDevice = cache->prepare(metaData)) {
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ioDevice->write(file);
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cache->insert(ioDevice);
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qCDebug(asset_client) << url.toDisplayString() << "saved to disk cache";
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return true;
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}
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qCWarning(asset_client) << "Could not save" << url.toDisplayString() << "to disk cache.";
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}
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} else {
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qCWarning(asset_client) << "No disk cache to save assets to.";
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}
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return false;
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}
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bool isValidPath(const AssetPath& path) {
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QRegExp pathRegex { ASSET_PATH_REGEX_STRING };
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return pathRegex.exactMatch(path);
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}
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bool isValidHash(const AssetHash& hash) {
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QRegExp hashRegex { ASSET_HASH_REGEX_STRING };
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return hashRegex.exactMatch(hash);
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}
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