QNetworkAccessManager / QNetworkRequest gets different response than CURL

QtCoder87

Hallo,

I am writing a Plugin to Jira via REST API.

Now I am trying to download an Attachment

CURL

c:\portable\curl\curl-7.71.0-win64-mingw\bin>curl.exe -D- -X GET -H "Authorization: Basic ENCODED_STRING_CENSORED" https://XXXX.atlassian.net/secure/attachment/10000/overqualified.jpg.webp
HTTP/2 302
server: AtlassianProxy/1.15.8.1
cache-control: no-cache, no-store, must-revalidate
content-type: image/webp
strict-transport-security: max-age=315360000; includeSubDomains; preload
date: Sat, 29 Aug 2020 01:32:27 GMT
atl-traceid: XXX
x-arequestid:XXX
x-aaccountid: XXX
location: https://api.media.atlassian.com/CENSORED_FOR_SECURITY=overqualified.jpg.webp
expires: Thu, 01 Jan 1970 01:59:59 EET
pragma: no-cache
x-xss-protection: 1; mode=block
timing-allow-origin: *
x-content-type-options: nosniff
micros-issuer: micros/edge-authenticator
set-cookie: XXXX
expect-ct: report-uri="https://web-security-reports.services.atlassian.com/expect-ct-report/global-proxy", enforce, max-age=86400
content-length: 0

Now my Code with QT

QByteArray JiraWidget::downloadAttachment(const QString& Url, JWidget* sender)
{
	auto* man = new QNetworkAccessManager();
	connect(man, &QNetworkAccessManager::finished, &this->synchronous, &QEventLoop::quit);
	auto req = QNetworkRequest(QUrl(url));
	//req.setHeader(QNetworkRequest::KnownHeaders::ContentTypeHeader, "image/webp");
	//req.setRawHeader("Accept", "image/webp");
	req.setRawHeader("Authorization", "Basic " + this->authArray.toBase64());
	auto* reply = man->get(req);
	this->synchronous.exec();
	while (!reply->isFinished())
		std::this_thread::sleep_for(std::chrono::milliseconds(500));
	auto code = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);
	auto error = reply->errorString();
	auto resp = reply->readAll();
	auto loc = reply->rawHeaderList();
	for (auto& arr : loc) {
		qDebug() << arr;
		qDebug() << reply->rawHeader(arr);
		int i = 0;
	}
	delete man;
	return resp;
}

Gets as Header
Content-Type: text/html;charset=UTF-8

and location is /secure/MyJiraHome.jspa

Why is CURL retrieving the correct location while my Application fails?

Christian Ehrlicher

Use wireshark, take a look what curl and Qt really sends as request.

Why do you block the ui for such stuff?

SGaist

Hi,

Beside @Christian-Ehrlicher point, are you getting any redirection ?

QtCoder87

@Christian-Ehrlicher said in QNetworkAccessManager / QNetworkRequest gets different response than CURL:

Use wireshark, take a look what curl and Qt really sends as request.

Why do you block the ui for such stuff?

By looking the code on this Forum I found the typo responsible for the behaviour.
I should move the Download stuff into a new Thread.
synchronous Download is more comfortable in this situation.

Christian Ehrlicher

@QtCoder87 said in QNetworkAccessManager / QNetworkRequest gets different response than CURL:

I should move the Download stuff into a new Thread.
synchronous Download is more comfortable in this situation.

This contradicts itself ...