66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
#include "MetaCacheSink.h"
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#include <QFile>
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#include <QFileInfo>
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#include "FileSystem.h"
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#include "Application.h"
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namespace Net {
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MetaCacheSink::MetaCacheSink(MetaEntryPtr entry, ChecksumValidator * md5sum)
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:Net::FileSink(entry->getFullPath()), m_entry(entry), m_md5Node(md5sum)
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{
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addValidator(md5sum);
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}
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MetaCacheSink::~MetaCacheSink()
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{
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// nil
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}
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JobStatus MetaCacheSink::initCache(QNetworkRequest& request)
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{
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if (!m_entry->isStale())
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{
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return Job_Finished;
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}
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// check if file exists, if it does, use its information for the request
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QFile current(m_filename);
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if(current.exists() && current.size() != 0)
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{
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if (m_entry->getRemoteChangedTimestamp().size())
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{
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request.setRawHeader(QString("If-Modified-Since").toLatin1(), m_entry->getRemoteChangedTimestamp().toLatin1());
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}
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if (m_entry->getETag().size())
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{
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request.setRawHeader(QString("If-None-Match").toLatin1(), m_entry->getETag().toLatin1());
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}
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}
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return Job_InProgress;
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}
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JobStatus MetaCacheSink::finalizeCache(QNetworkReply & reply)
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{
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QFileInfo output_file_info(m_filename);
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if(wroteAnyData)
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{
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m_entry->setMD5Sum(m_md5Node->hash().toHex().constData());
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}
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m_entry->setETag(reply.rawHeader("ETag").constData());
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if (reply.hasRawHeader("Last-Modified"))
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{
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m_entry->setRemoteChangedTimestamp(reply.rawHeader("Last-Modified").constData());
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}
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m_entry->setLocalChangedTimestamp(output_file_info.lastModified().toUTC().toMSecsSinceEpoch());
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m_entry->setStale(false);
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APPLICATION->metacache()->updateEntry(m_entry);
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return Job_Finished;
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}
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bool MetaCacheSink::hasLocalData()
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{
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QFileInfo info(m_filename);
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return info.exists() && info.size() != 0;
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}
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}
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