95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
#include "./httpdownloadwithinforequst.h"
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#include "./permissionstatus.h"
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namespace Network {
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/*!
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* \class HttpDownloadWithInfoRequst
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* \brief The HttpDownloadWithInfoRequst class a base class for HTTP downloads which need to perform
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* additional requests before the actual download.
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*
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* A YoutubeDownload needs to retrieve the download URL for example. These requests are handled by
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* the HttpDownloadWithInfoRequst class during initialization.
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*/
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/*!
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* \brief Constructs a new YoutubeDownload for the specified \a url.
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*/
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HttpDownloadWithInfoRequst::HttpDownloadWithInfoRequst(const QUrl &url, QObject *parent) :
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HttpDownload(url, parent)
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{}
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HttpDownloadWithInfoRequst::~HttpDownloadWithInfoRequst()
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{}
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void HttpDownloadWithInfoRequst::doInit()
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{
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setTitleFromFilename(initialUrl().host());
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bool success;
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QString reasonForFail;
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// get the info request
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m_infoDownload.reset(infoRequestDownload(success, reasonForFail));
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if(success) {
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// the request could be constructed successfully
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if(!m_infoDownload) {
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// no request needed (at this time), just call evalVideoInformation()
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evalVideoInformation(nullptr, nullptr);
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} else {
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// setup and initiate the request
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m_infoDownload->setParent(parent());
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m_infoDownload->setDefaultUserAgentUsed(isDefaultUserAgentUsed());
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m_infoDownload->setCustomUserAgent(userAgent());
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m_infoDownload->setProxy(proxy());
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connect(m_infoDownload.get(), &Download::statusChanged, this, &HttpDownloadWithInfoRequst::infoRequestChangedStatus);
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m_infoDownload->init();
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}
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} else {
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reportInitiated(false, reasonForFail);
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}
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}
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void HttpDownloadWithInfoRequst::abortDownload()
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{
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if(m_infoDownload) {
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m_infoDownload->stop();
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}
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HttpDownload::abortDownload();
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}
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/*!
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* \brief Handles the status of the info request.
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*/
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void HttpDownloadWithInfoRequst::infoRequestChangedStatus(Download *download)
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{
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switch(download->status()) {
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case DownloadStatus::Failed:
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reportInitiated(false, tr("Couldn't retieve the video information. %1").arg(statusInfo()));
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break;
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case DownloadStatus::Ready:
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if(m_infoDownload->isValidOptionChosen()) {
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m_infoDownload->setRedirectPermission(m_infoDownload->chosenOption(), PermissionStatus::AlwaysAllowed);
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m_infoBuffer.reset(new QBuffer());
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if(m_infoBuffer->open(QIODevice::ReadWrite)) {
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download->start(m_infoBuffer.get());
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} else {
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reportInitiated(false, tr("Couldn't initialize buffer to store initialization data."));
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}
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} else {
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reportInitiated(false, tr("The initialization request has no options."));
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}
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break;
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case DownloadStatus::Finished:
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if(!m_infoBuffer) {
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reportInitiated(false, tr("The initialization data buffer hasn't been initialized."));
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} else {
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evalVideoInformation(download, m_infoBuffer.get());
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m_infoDownload.reset();
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}
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break;
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default:
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;
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}
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}
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}
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