[SOLVED] QNetworkAccessManager failing to retrieve data

blackpaw

Edited: Environment
Qt 4.7.4
KDE 4.7.1
Kubuntu 11.10

I'm trying to pull back data from an url ("http://whirlpool.net.au":http://whirlpool.net.au), code as follows:

@
void KWhirlMonView::refresh()
{
QUrl url("http://whirlpool.net.au");
QNetworkRequest request(url);

reply = qnam.get(request);
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)));

connect(reply, SIGNAL(error(QNetworkReply::NetworkError)),
        this, SLOT(httpError(QNetworkReply::NetworkError)));

}

void KWhirlMonView::httpFinished()
{
kDebug() << "httpFinished - " << reply->errorString() << endl;
QByteArray data = reply->readAll();
QString s(data);
kDebug() << s << endl;
}

void KWhirlMonView::httpError ( QNetworkReply::NetworkError code )
{
kDebug() << code << endl;
}

@

the error slot always triggers with error code 203
The error String is "Error downloading http://whirlpool.net.au - server replied: Not found"
The data returned is : "<html><body>The requested resource could not be found.</body></html>"

I can open the site fine with any browser and other windows SDK code (delphi + indy httpClient)

Any suggestions?

Thanks - Lindsay

koahnig

Your first referenced link on this page here is broken (first line). It includes ")," .

blackpaw

I don't understand your point - thats just the forum software mangling the link I posted. You'll note the actual code I posted has the correct url - "http://whirlpool.net.au":http://whirlpool.net.au

blackpaw

ps - Thanks though! :)

koahnig

Sorry, it is just a problem in your positing.
In the first line of your post you have attached immediately after the link a ')' and a ','.
If one tries to follow this link, one will get an error message. This is a problem of devnet.
Unfortunately, it does not address your actual problem.

[Edit] Someone has fixed it in the mean time.

blackpaw

That was me :) thanks for the heads up

blackpaw

I should add - tried the code with "http://google.com":http://google.com, that worked fine (retrieved the content)

lgeyer

Have you tried to use Wireshark or tcpdump to spot the difference between the two requests?
What does qDebug() << reply->request()->url() say?

Probably the site has some restrictions based on user agent or access pattern to block your request. At least they have some sense of "humor":http://whirlpool.net.au/index.php ;-)

zither

Some error in code?
I think
@reply = qnam.get(request);@

Should be
@reply = qname->get(request);@

you should check, like Lukas Geyer says to check your url reqest.
@qDebug()<<reply->request()->url@

blackpaw

Thanks Lucas, that definietly got me on the right track - once I set the user agent to "Mozilla ..." etc I started getting info back. Now having problems with the cgi parameters but I'll sort that.

Might have a word with the site admin about the UA requirement - doesn't seem neccessary ...