SpeedNumCube/sncprojects/lib/SNCCore/httpdownload.cpp

#include "httpdownload.h"

HttpDownload::HttpDownload(QObject *parent) :
    QObject(parent)
{
    this->retCode = 0;
    this->reply = 0;
}
HttpDownload::~HttpDownload()
{
    if (reply) {
        delete reply;
    }
//    qDebug()<<QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss")\
//           <<"HttpDownload Destroyed.";
}
int HttpDownload::downloadFile(QString fileUrl,QString savePath)
{
    url = fileUrl;
    QFileInfo fileInfo(url.path());
    QString fileName ;
    if(savePath.endsWith('/'))
        fileName = savePath+fileInfo.fileName();
    else
        fileName = savePath + "/" + fileInfo.fileName();
    if (QFile::exists(fileName))
    {
        QFile::remove(fileName);
    }
    file = new QFile(fileName);
    QString str = "²»Äܱ£´æÎļþ %1: %2.";
    if (!file->open(QIODevice::WriteOnly)) {
        qDebug()<< str.arg(fileName).arg(file->errorString());
        delete file;
        file = 0;
        return -1;
    }
    finish = false;
    httpRequestAborted = false;
    startRequest(url);
    while(!finish)
        QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
    return retCode;
}
void HttpDownload::startRequest(QUrl url)
{
    reply = qnam.get(QNetworkRequest(url));
    connect(reply, SIGNAL(finished()),
            this, SLOT(httpFinished()));
    connect(reply, SIGNAL(readyRead()),
            this, SLOT(httpReadyRead()));
    connect(reply, SIGNAL(downloadProgress(qint64,qint64)),
            this, SLOT(updateDataReadProgress(qint64,qint64)));
}
void HttpDownload::httpFinished()
{
    if (httpRequestAborted) {
        if (file) {
            file->close();
            file->remove();
            delete file;
            file = 0;
        }
        reply->deleteLater();
        retCode = -1;
        finish = true;
        return;
    }
    file->flush();
    file->close();
    finish = true;
}
void HttpDownload::httpReadyRead()
{
    if (file)
        file->write(reply->readAll());
}
void HttpDownload::updateDataReadProgress(qint64 bytesRead, qint64 totalBytes)
{
    if (httpRequestAborted)
        return;
}