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Cache forge version list (it's huge)

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This commit is contained in:
Petr Mrázek
2013-09-22 14:00:37 +02:00
parent ceca6959d2
commit 9d03a9c1e3
6 changed files with 118 additions and 97 deletions
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63
logic/net/CacheDownload.cpp
View File

@ -7,8 +7,8 @@
#include <QDateTime>
#include <QDebug>
CacheDownload::CacheDownload (QUrl url, MetaEntryPtr entry )
:Download(), md5sum(QCryptographicHash::Md5)
CacheDownload::CacheDownload(QUrl url, MetaEntryPtr entry)
: Download(), md5sum(QCryptographicHash::Md5)
{
m_url = url;
m_entry = entry;
@ -19,38 +19,40 @@ CacheDownload::CacheDownload (QUrl url, MetaEntryPtr entry )
void CacheDownload::start()
{
if(!m_entry->stale)
if (!m_entry->stale)
{
emit succeeded(index_within_job);
return;
}
m_output_file.setFileName(m_target_path);
// if there already is a file and md5 checking is in effect and it can be opened
if(!ensureFilePathExists(m_target_path))
if (!ensureFilePathExists(m_target_path))
{
emit failed(index_within_job);
return;
}
qDebug() << "Downloading " << m_url.toString();
QNetworkRequest request ( m_url );
request.setRawHeader(QString("If-None-Match").toLatin1(), m_entry->etag.toLatin1());
QNetworkRequest request(m_url);
request.setRawHeader(QString("If-None-Match").toLatin1(), m_entry->etag.toLatin1());
auto worker = MMC->qnam();
QNetworkReply * rep = worker->get ( request );
m_reply = QSharedPointer<QNetworkReply> ( rep, &QObject::deleteLater );
connect ( rep, SIGNAL ( downloadProgress ( qint64,qint64 ) ), SLOT ( downloadProgress ( qint64,qint64 ) ) );
connect ( rep, SIGNAL ( finished() ), SLOT ( downloadFinished() ) );
connect ( rep, SIGNAL ( error ( QNetworkReply::NetworkError ) ), SLOT ( downloadError ( QNetworkReply::NetworkError ) ) );
connect ( rep, SIGNAL ( readyRead() ), SLOT ( downloadReadyRead() ) );
QNetworkReply *rep = worker->get(request);
m_reply = QSharedPointer<QNetworkReply>(rep, &QObject::deleteLater);
connect(rep, SIGNAL(downloadProgress(qint64, qint64)),
SLOT(downloadProgress(qint64, qint64)));
connect(rep, SIGNAL(finished()), SLOT(downloadFinished()));
connect(rep, SIGNAL(error(QNetworkReply::NetworkError)),
SLOT(downloadError(QNetworkReply::NetworkError)));
connect(rep, SIGNAL(readyRead()), SLOT(downloadReadyRead()));
}
void CacheDownload::downloadProgress ( qint64 bytesReceived, qint64 bytesTotal )
void CacheDownload::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
{
emit progress (index_within_job, bytesReceived, bytesTotal );
emit progress(index_within_job, bytesReceived, bytesTotal);
}
void CacheDownload::downloadError ( QNetworkReply::NetworkError error )
void CacheDownload::downloadError(QNetworkReply::NetworkError error)
{
// error happened during download.
// TODO: log the reason why
@ -59,12 +61,12 @@ void CacheDownload::downloadError ( QNetworkReply::NetworkError error )
void CacheDownload::downloadFinished()
{
// if the download succeeded
if ( m_status != Job_Failed )
if (m_status != Job_Failed)
{
// nothing went wrong...
m_status = Job_Finished;
if(m_opened_for_saving)
if (m_opened_for_saving)
{
// save the data to the downloadable if we aren't saving to file
m_output_file.close();
@ -72,20 +74,23 @@ void CacheDownload::downloadFinished()
}
else
{
if ( m_output_file.open ( QIODevice::ReadOnly ) )
if (m_output_file.open(QIODevice::ReadOnly))
{
m_entry->md5sum = QCryptographicHash::hash ( m_output_file.readAll(), QCryptographicHash::Md5 ).toHex().constData();
m_entry->md5sum =
QCryptographicHash::hash(m_output_file.readAll(), QCryptographicHash::Md5)
.toHex()
.constData();
m_output_file.close();
}
}
QFileInfo output_file_info(m_target_path);
m_entry->etag = m_reply->rawHeader("ETag").constData();
m_entry->last_changed_timestamp = output_file_info.lastModified().toUTC().toMSecsSinceEpoch();
m_entry->last_changed_timestamp =
output_file_info.lastModified().toUTC().toMSecsSinceEpoch();
m_entry->stale = false;
MMC->metacache()->updateEntry(m_entry);
m_reply.clear();
emit succeeded(index_within_job);
return;
@ -103,9 +108,9 @@ void CacheDownload::downloadFinished()
void CacheDownload::downloadReadyRead()
{
if(!m_opened_for_saving)
if (!m_opened_for_saving)
{
if ( !m_output_file.open ( QIODevice::WriteOnly ) )
if (!m_output_file.open(QIODevice::WriteOnly))
{
/*
* Can't open the file... the job failed
@ -118,5 +123,5 @@ void CacheDownload::downloadReadyRead()
}
QByteArray ba = m_reply->readAll();
md5sum.addData(ba);
m_output_file.write ( ba );
m_output_file.write(ba);
}

19
logic/net/HttpMetaCache.h
View File

@ -24,25 +24,28 @@ public:
// supply path to the cache index file
HttpMetaCache(QString path);
~HttpMetaCache();
// get the entry solely from the cache
// you probably don't want this, unless you have some specific caching needs.
MetaEntryPtr getEntry(QString base, QString resource_path);
// get the entry from cache and verify that it isn't stale (within reason)
MetaEntryPtr resolveEntry(QString base, QString resource_path, QString expected_etag = QString());
MetaEntryPtr resolveEntry(QString base, QString resource_path,
QString expected_etag = QString());
// add a previously resolved stale entry
bool updateEntry(MetaEntryPtr stale_entry);
void addBase(QString base, QString base_root);
// (re)start a timer that calls SaveNow later.
void SaveEventually();
void Load();
QString getBasePath ( QString base );
public slots:
QString getBasePath(QString base);
public
slots:
void SaveNow();
private:
// create a new stale entry, given the parameters
MetaEntryPtr staleEntry(QString base, QString resource_path);