I get only 1 of 4 cookies...

[cherva]

Aaaammm "No, it makes it QList<QVariant>............ (because it is not a QList<QVariant>)." ?

[wysota]

Aaaammm "No, it makes it QList<QVariant>............ (because it is not a QList<QVariant>)." ?

I suggest you rephrase this post because I have no idea what you mean. If it's that you don't see a difference between QVariant and QNetworkCookie then I suggest you click both links and read the docs to see the differences. You are trying to convert a QVariant holding a QList<QNetworkCookie> into QList<QVariant> which it is not thus you get an empty QList<QVariant>. It's like you wanted to convert a rectangle into a circle - you'd get an invalid circle because rectangles can't be converted to circles without actually knowing what a "rectangles" and "circles" are.

[cherva]

I didn't understand what he posted.... at firs he says that it's a QList<QVariant> and then in the brackets he says that it's not QList<QVariant>, but never mind that. I don't know how to convert it to a QList<QNetworkCookie> ? I guess not like

QList<QNetworkCookie> list = cookies.toList();

QList<QNetworkCookie> list = cookies.toList();

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[wysota]

at firs he says that it's a QList<QVariant>

No, at first "he" says the cast tries to make it QList<QVariant>.

and then in the brackets he says that it's not QList<QVariant>,

Yes, so "he" says.

but never mind that.

Actually you should mind because it is the most important part of the whole discussion.

I don't know how to convert it to a QList<QNetworkCookie> ? I guess not like

QList<QNetworkCookie> list = cookies.toList();

QList<QNetworkCookie> list = cookies.toList();

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I guess the compiler already told you it is not the right route...

Try this:

QList<QNetworkCookie> cookieList = qvariant_cast<QList<QNetworkCookie> >(cookies);

QList<QNetworkCookie> cookieList = qvariant_cast<QList<QNetworkCookie> >(cookies);

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[cherva]

I don't know how to explain what happened...
My cookieList has 1 item: "d" wich is a QSharedDataPointer<QNetworkCookiePrivate> wich has another "d" wich is QNetworkCookiePrivate * with value 0x1 there is *d inside it wich is QNetworkCookiePrivate and insite that there is a QSharedData (commend,domain,expirationDate,httpOnly,name,path, secure,value) and they are all "not in scope"

[wysota]

I don't know how to explain what happened...

You tried debugging a class your debugger has no support for. That's normal. Forget the debugger - after making the cast see the size of the list. If it is 0 then it's not a list but rather a QNetworkCookie object which would be strange. Try running this code (assuming "rep" is your QNetworkReply object):

QVariant var = rep->header(QNetworkRequest::SetCookieHeader);
qDebug() << "Cookies set:" << var;
QList<QNetworkCookie> cookies = qvariant_cast<QList<QNetworkCookie> >(var);
foreach(QNetworkCookie c, cookies){
      qDebug() << QString(c.toRawForm());
}

QVariant var = rep->header(QNetworkRequest::SetCookieHeader);
qDebug() << "Cookies set:" << var;
QList<QNetworkCookie> cookies = qvariant_cast<QList<QNetworkCookie> >(var);
foreach(QNetworkCookie c, cookies){
      qDebug() << QString(c.toRawForm());
}

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[cherva]

Again it's only one cookie. The JSESSIONID.

[wysota]

Again it's only one cookie. The JSESSIONID.

Great, finally... Now you should check if setting multiple set-cookie headers is a valid policy with HTTP/1.1. If so then probably reporting a bug to Qt Software is a good idea. If not, then you have to find a workaround for the faulty server for instance using QNetworkReply::rawHeaderList() and QNetworkCookie::parseCookies().

[ChrisW67]

From RFC 2109, "An origin server may include multiple Set-Cookie headers in a response. Note that an intervening gateway could fold multiple such headers into a single header."

Servers do return multiple Set-Cookie lines, for example (wrapping of line 10 is mine):

Resolving www.doubleclick.com... 216.73.93.8
Connecting to www.doubleclick.com|216.73.93.8|:80... connected.
HTTP request sent, awaiting response...
  HTTP/1.1 200 OK
  Connection: keep-alive
  Date: Tue, 05 May 2009 08:43:11 GMT
  Server: Microsoft-IIS/6.0
  X-Powered-By: ASP.NET
  X-AspNet-Version: 2.0.50727
  Set-Cookie: ecm=user_id=0&isMembershipUser=0&site_id=&username=&new_site=/
     &unique_id=0&site_preview=0&langvalue=0&DefaultLanguage=1033&NavLanguage=1033&
     LastValidLanguageID=1033&ContType=&UserCulture=1033&SiteLanguage=1033; path=/
  Set-Cookie: ASP.NET_SessionId=arv3wz3p3eqaayff0d1duv45; path=/; HttpOnly
  Cache-Control: private
  Content-Type: text/html; charset=utf-8
  Content-Length: 30533
Length: 30533 (30K) [text/html]

Resolving www.doubleclick.com... 216.73.93.8
Connecting to www.doubleclick.com|216.73.93.8|:80... connected.
HTTP request sent, awaiting response...
  HTTP/1.1 200 OK
  Connection: keep-alive
  Date: Tue, 05 May 2009 08:43:11 GMT
  Server: Microsoft-IIS/6.0
  X-Powered-By: ASP.NET
  X-AspNet-Version: 2.0.50727
  Set-Cookie: ecm=user_id=0&isMembershipUser=0&site_id=&username=&new_site=/
     &unique_id=0&site_preview=0&langvalue=0&DefaultLanguage=1033&NavLanguage=1033&
     LastValidLanguageID=1033&ContType=&UserCulture=1033&SiteLanguage=1033; path=/
  Set-Cookie: ASP.NET_SessionId=arv3wz3p3eqaayff0d1duv45; path=/; HttpOnly
  Cache-Control: private
  Content-Type: text/html; charset=utf-8
  Content-Length: 30533
Length: 30533 (30K) [text/html]

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[cherva]

I sent a bug report to QT. QNetworkReply::rawHeaderList() tells me that there is only one Set-Cookie ..... I think it is affected too. Can I dump the header to a QByteArray and cut the part I don't need ?

[wysota]

You can dump whatever you want wherever you want if there is an API call for that. Unfortunately I don't see means to do that in the API.

[cherva]

Anyone having other ideas ?

[wysota]

Anyone having other ideas ?

You can use QHttp or even QTcpSocket or implement a workaround in Qt itself.

[cherva]

For anyone having the same issue this problem is fixed in QT 4.5.2 and UP.
Thanks ChrisW67, and wysota.