mirror of https://github.com/tp4a/teleport
107 lines
2.8 KiB
C++
107 lines
2.8 KiB
C++
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#include "downloader.h"
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#include "record_format.h"
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#include <QNetworkReply>
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#include <qelapsedtimer.h>
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// TODO: 将Downloader的实现代码迁移到ThrData线程中
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// 使用局部event循环的方式进行下载
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/*
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QEventLoop eventLoop;
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connect(netWorker, &NetWorker::finished,
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&eventLoop, &QEventLoop::quit);
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QNetworkReply *reply = netWorker->get(url);
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replyMap.insert(reply, FetchWeatherInfo);
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eventLoop.exec();
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*/
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//=================================================================
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// Downloader
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//=================================================================
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Downloader::Downloader() {
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m_reply = nullptr;
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m_code = codeUnknown;
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}
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Downloader::~Downloader() {
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}
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void Downloader::run(QNetworkAccessManager* nam, QString& url, QString& sid, QString& filename) {
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m_filename = filename;
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if(!m_filename.isEmpty()) {
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m_file.setFileName(m_filename);
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if(!m_file.open(QIODevice::WriteOnly | QFile::Truncate)){
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qDebug("open file for write failed.");
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return;
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}
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}
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m_code = codeDownloading;
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QString cookie = QString("_sid=%1\r\n").arg(sid);
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QNetworkRequest req;
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req.setUrl(QUrl(url));
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req.setRawHeader("Cookie", cookie.toLatin1());
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m_reply = nam->get(req);
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connect(m_reply, &QNetworkReply::finished, this, &Downloader::_on_finished);
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connect(m_reply, &QIODevice::readyRead, this, &Downloader::_on_data_ready);
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}
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void Downloader::_on_data_ready() {
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QNetworkReply *reply = reinterpret_cast<QNetworkReply*>(sender());
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if(m_filename.isEmpty()) {
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m_data += reply->readAll();
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}
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else {
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m_file.write(reply->readAll());
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}
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}
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void Downloader::reset() {
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m_code = codeUnknown;
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}
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void Downloader::abort() {
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if(m_reply)
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m_reply->abort();
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}
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void Downloader::_on_finished() {
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qDebug("download finished");
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QNetworkReply *reply = reinterpret_cast<QNetworkReply*>(sender());
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QVariant statusCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);
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if (reply->error() != QNetworkReply::NoError) {
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// reply->abort() got "Operation canceled"
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//QString strError = reply->errorString();
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//qDebug() << strError;
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m_file.flush();
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m_file.close();
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m_code = codeFailed;
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return;
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}
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disconnect(m_reply, &QNetworkReply::finished, this, &Downloader::_on_finished);
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disconnect(m_reply, &QIODevice::readyRead, this, &Downloader::_on_data_ready);
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// reply->deleteLater();
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if(m_filename.isEmpty()) {
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m_data += reply->readAll();
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}
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else {
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m_file.write(reply->readAll());
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m_file.flush();
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m_file.close();
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}
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reply->deleteLater();
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m_code = codeSuccess;
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}
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