QHttpRequestHeader download from 1 byte to 1000 byte - part File ?

[nhs_0702]

void HttpWindow::resumeDownloadFile()
{
	QString qEditUrl = urlLineEdit->text();
	QFileInfo fileInfo(qEditUrl);
	QString fileName = fileInfo.fileName();
	if (fileName.isEmpty())
		fileName = "index.html";
	QUrl subjectUrl(qEditUrl);
	qfFileOut = new QFile(fileName);
	if(!qfFileOut->open(QIODevice::WriteOnly)){
		return;
	}
	QHttpRequestHeader	qHeader;
	http->setHost(subjectUrl.host());
	qHeader.setRequest("GET", subjectUrl.path());
	qHeader.addValue("Host", subjectUrl.host());
	qHeader.addValue("Range", QString("bytes=1-1000"));
        httpRequestAborted = false;
	httpGetId = http->request(qHeader, 0, qfFileOut);
    progressDialog->setWindowTitle(tr("HTTP"));
    progressDialog->setLabelText(tr("Downloading %1.").arg(fileName));
    downloadButton->setEnabled(false);
}

void HttpWindow::resumeDownloadFile()
{
	QString qEditUrl = urlLineEdit->text();
	QFileInfo fileInfo(qEditUrl);
	QString fileName = fileInfo.fileName();
	if (fileName.isEmpty())
		fileName = "index.html";
	QUrl subjectUrl(qEditUrl);
	qfFileOut = new QFile(fileName);
	if(!qfFileOut->open(QIODevice::WriteOnly)){
		return;
	}
	QHttpRequestHeader	qHeader;
	http->setHost(subjectUrl.host());
	qHeader.setRequest("GET", subjectUrl.path());
	qHeader.addValue("Host", subjectUrl.host());
	qHeader.addValue("Range", QString("bytes=1-1000"));
        httpRequestAborted = false;
	httpGetId = http->request(qHeader, 0, qfFileOut);
    progressDialog->setWindowTitle(tr("HTTP"));
    progressDialog->setLabelText(tr("Downloading %1.").arg(fileName));
    downloadButton->setEnabled(false);
}

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void HttpWindow::readResponseHeader(const QHttpResponseHeader &responseHeader)
{
    switch (responseHeader.statusCode()) {
    case 200:                   // Ok
    case 301:                   // Moved Permanently
    case 302:                   // Found
    case 303:                   // See Other
    case 307:
		break;// Temporary Redirect
    default:
		QMessageBox::information(this, tr("HTTP"),tr("Error Response Header : %1.").arg(responseHeader.reasonPhrase()));
        httpRequestAborted = true;
        progressDialog->hide();
        //http->abort();
    }
}

void HttpWindow::readResponseHeader(const QHttpResponseHeader &responseHeader)
{
    switch (responseHeader.statusCode()) {
    case 200:                   // Ok
    case 301:                   // Moved Permanently
    case 302:                   // Found
    case 303:                   // See Other
    case 307:
		break;// Temporary Redirect
    default:
		QMessageBox::information(this, tr("HTTP"),tr("Error Response Header : %1.").arg(responseHeader.reasonPhrase()));
        httpRequestAborted = true;
        progressDialog->hide();
        //http->abort();
    }
}

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i want download 1 file from 1 byte -> 1000 byte ,dont download all,i use funciton
qHeader.addValue("Range", QString("bytes=1-1000"));
but it error :

[wysota]

So? Did you check the reason?

[squidge]

Some servers may not support the 'Range' header. This will be stated in the statusCode.

[wysota]

He's getting a 404, so it's not about an unhandled header but rather about a wrong path to the resource.