Open zip with QuaZip from Qbuffer variable

[vitor13almeida]

Hi! I'm trying to open a zip file that is inside a reply from my server.
I have that zip inside a QBuffer and I'm trying to open it with QuaZip, but it's not working...
I want to do something like this:

QByteArray msg = reply->readAll();
QBuffer buffer(&msg);
buffer.open(QIODevice::WriteOnly);
buffer.write(msg.data(), msg.size());
buffer.seek(3);
buffer.close();
QString json_var = extractAll_fomVar(&buffer);

I can unzip a file in disk but I don't want to create that file... I want to use it in memory...

I have this error:
QuaZip::goToFirstFile(): ZIP is not open in mdUnzip mode
Invalid JSON...

How can I do that?

[anda_skoa]

Why are you writing into the buffer?

I would have expected that you just open it for reading and pass the pointer to the extractAll_fomVar() function.

Right now you are overwriting the data with itself and then handing a closed buffer to your function.

Cheers,
_

[vitor13almeida]

To create a QuaZip var I can use the path to my zip file or a QIODevice var...
So I wrote my data from QBytesArray to a QBuffer var.
Inside extractAll_fomVar() I open buffer for reading

[anda_skoa]

Aside from your unnecessary writing of the same data again, does it work if you save the "msg" into a file and pass an unopened QFile to that?

Cheers,
_