QT: QUrl with no percent encoding

Question

QT: I was wondering if there is a way to create a QUrl or another URL class object from string without encoding the final URL. For example, here is a snippet of my code:

QString GetJsonStringFromURL(QString url) //url == "192.168.0.111/controller?POSITION|03|100"
{
    QEventLoop eventLoop;
    QNetworkAccessManager mgr;
    QObject::connect(&mgr, SIGNAL(finished(QNetworkReply*)), &eventLoop, SLOT(quit()));  

    QNetworkRequest req( QUrl::fromUserInput(url) ) ; 

    QNetworkReply *reply = mgr.get(req);
    eventLoop.exec(); //wait till reply finished
    QString strReply = reply->readAll();
    return strReply;
}

This code accesses a local area network controller requesting it's json with a get method, while passing a parameter in the url. The url i'm passing gets percent encoded to:

"192.168.0.111/controller?POSITION%7C03%7C100"

which i am trying to avoid. The server i'm trying to access is a custom piece of hardware with firmware written in C which doesn't incorporate percent decoding. I would like to avoid doing maintenance on the server side. I have tried going through QUrl class reference but none of the available methods provided the wanted result.

score 2 · Accepted Answer · answered Nov 11 '14 at 07:58

2

This is not possible with QNetworkRequest since each request requires a QUrl object that does store the destination and is internally converted into an encoded string.

setRawHeader does not work for you, since it can set all HTTP headers except from the URL, that is part of the GET request.

Confirm raw HTTP header format curl -v http://stackoverflow.com/questions/

GET /questions/ HTTP/1.1
User-Agent: curl/7.37.1
Host: stackoverflow.com
Accept: */*

Thus you need an entirely raw socket connection (which I have no experience with).

answered Nov 11 '14 at 07:58

Simon Warta

10,850
5
40
78

Thank you, after two days of research i'm giving up on this, and changing the non-standard URL as it seems that you're right, no matter what i try, the QUrl class parses and encodes the string using standard url conventions. – Nikša Skeledžija Nov 11 '14 at 08:42
Fine :) Then I'd appreciate an upvote and accept of this answers. – Simon Warta Nov 11 '14 at 09:10
I've accepted the answer, but my rep is too low too upvote :) – Nikša Skeledžija Nov 11 '14 at 09:18

IsakBosman · Answer 2 · 2014-11-11T08:07:31.867

0

Qurl has a decode function. Look at QUrl::decode() otherwise you can prevent encoding when passing it in with QUrl::fromPercentEncoding(url.toEncoded()) but you might lose some string integrity if you have complex query strings.

I have not personally used this but I though I would post as you mentioned you couldn't find anything in the class reference.

edited Nov 11 '14 at 08:07

answered Nov 11 '14 at 07:55

IsakBosman

1,453
12
19

I've seen these methods and tested them, none provided the wanted result. :( I've now tried using fromPercentEncoding and still, the string is encoded again. I guess this Url format is required by the network classes, which is why it doesn't allow wrong formats. – Nikša Skeledžija Nov 11 '14 at 08:28

QT: QUrl with no percent encoding

2 Answers2