fc28aacdea
It really should not dictate how are things stored and it just makes the metadata bigger for no reason.
154 lines
3.4 KiB
C++
154 lines
3.4 KiB
C++
/* 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 "BaseEntity.h"
|
|
|
|
#include "Json.h"
|
|
|
|
#include "net/Download.h"
|
|
#include "net/HttpMetaCache.h"
|
|
#include "net/NetJob.h"
|
|
|
|
#include "Env.h"
|
|
#include "Json.h"
|
|
|
|
class ParsingValidator : public Net::Validator
|
|
{
|
|
public: /* con/des */
|
|
ParsingValidator(Meta::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));
|
|
return true;
|
|
}
|
|
catch (Exception &e)
|
|
{
|
|
qWarning() << "Unable to parse response:" << e.cause();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
private: /* data */
|
|
QByteArray data;
|
|
Meta::BaseEntity *m_entity;
|
|
};
|
|
|
|
Meta::BaseEntity::~BaseEntity()
|
|
{
|
|
}
|
|
|
|
QUrl Meta::BaseEntity::url() const
|
|
{
|
|
return QUrl("https://meta-dev.multimc.org").resolved(localFilename());
|
|
}
|
|
|
|
bool Meta::BaseEntity::loadLocalFile()
|
|
{
|
|
const QString fname = QDir("meta").absoluteFilePath(localFilename());
|
|
if (!QFile::exists(fname))
|
|
{
|
|
return false;
|
|
}
|
|
// TODO: check if the file has the expected checksum
|
|
try
|
|
{
|
|
parse(Json::requireObject(Json::requireDocument(fname, fname), fname));
|
|
return true;
|
|
}
|
|
catch (Exception &e)
|
|
{
|
|
qDebug() << QString("Unable to parse file %1: %2").arg(fname, e.cause());
|
|
// just make sure it's gone and we never consider it again.
|
|
QFile::remove(fname);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void Meta::BaseEntity::load()
|
|
{
|
|
// load local file if nothing is loaded yet
|
|
if(!isLoaded())
|
|
{
|
|
if(loadLocalFile())
|
|
{
|
|
m_loadStatus = LoadStatus::Local;
|
|
}
|
|
}
|
|
// if we need remote update, run the update task
|
|
if(!shouldStartRemoteUpdate())
|
|
{
|
|
return;
|
|
}
|
|
NetJob *job = new NetJob(QObject::tr("Download of meta file %1").arg(localFilename()));
|
|
auto url = this->url();
|
|
auto entry = ENV.metacache()->resolveEntry("meta", localFilename());
|
|
entry->setStale(true);
|
|
auto 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.
|
|
*/
|
|
dl->addValidator(new ParsingValidator(this));
|
|
job->addNetAction(dl);
|
|
m_updateStatus = UpdateStatus::InProgress;
|
|
m_updateTask.reset(job);
|
|
QObject::connect(job, &NetJob::succeeded, [&]()
|
|
{
|
|
m_loadStatus = LoadStatus::Remote;
|
|
m_updateStatus = UpdateStatus::Succeeded;
|
|
m_updateTask.reset();
|
|
});
|
|
QObject::connect(job, &NetJob::failed, [&]()
|
|
{
|
|
m_updateStatus = UpdateStatus::Failed;
|
|
m_updateTask.reset();
|
|
});
|
|
m_updateTask->start();
|
|
}
|
|
|
|
shared_qobject_ptr<Task> Meta::BaseEntity::getCurrentTask()
|
|
{
|
|
if(m_updateStatus == UpdateStatus::InProgress)
|
|
{
|
|
return m_updateTask;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
#include "BaseEntity.moc"
|