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/* Copyright 2015-2017 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "RemoteLoadTask.h"
#include "net/Download.h"
#include "net/HttpMetaCache.h"
#include "net/NetJob.h"
#include "meta/format/Format.h"
#include "meta/Util.h"
#include "meta/Index.h"
#include "meta/Version.h"
#include "meta/VersionList.h"
#include "Env.h"
#include "Json.h"
namespace Meta
{
RemoteLoadTask::RemoteLoadTask(BaseEntity *entity, QObject *parent)
: Task(parent), m_entity(entity)
{
}
class ParsingValidator : public Net::Validator
{
public: /* con/des */
ParsingValidator(BaseEntity *entity) : m_entity(entity)
{
};
virtual ~ParsingValidator()
{
};
public: /* methods */
bool init(QNetworkRequest &) override
{
return true;
}
bool write(QByteArray & data) override
{
this->data.append(data);
return true;
}
bool abort() override
{
return true;
}
bool validate(QNetworkReply &) override
{
auto fname = m_entity->localFilename();
try
{
m_entity->parse(Json::requireObject(Json::requireDocument(data, fname), fname));
m_entity->notifyRemoteLoadComplete();
return true;
}
catch (Exception &e)
{
qWarning() << "Unable to parse response:" << e.cause();
return false;
}
}
private: /* data */
QByteArray data;
BaseEntity *m_entity;
};
void RemoteLoadTask::executeTask()
{
// FIXME: leak here!!!
NetJob *job = new NetJob(tr("Download of meta file %1").arg(m_entity->localFilename()));
auto url = m_entity->url();
auto entry = ENV.metacache()->resolveEntry("meta", m_entity->localFilename());
entry->setStale(true);
m_dl = Net::Download::makeCached(url, entry);
/*
* The validator parses the file and loads it into the object.
* If that fails, the file is not written to storage.
*/
m_dl->addValidator(new ParsingValidator(m_entity));
job->addNetAction(m_dl);
connect(job, &NetJob::failed, this, &RemoteLoadTask::emitFailed);
connect(job, &NetJob::succeeded, this, &RemoteLoadTask::succeeded);
connect(job, &NetJob::status, this, &RemoteLoadTask::setStatus);
connect(job, &NetJob::progress, this, &RemoteLoadTask::setProgress);
job->start();
}
}
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