I’m using C++ with QT4 for this. And when I try to send large html files(in this case, 8kb), the process of sending and receiving work well. But the file received come with spaces between each character of the html file. Here an example,
the file is sent like this:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
<html><head><meta name="qrichtext" content="1" /><style type="text/css">
p, li { white-space: pre-wrap; }
</style></head><body style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:400; font-style:normal;">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">a</p></body></html>
and it’s received, like this:
¼ < ! D O C T Y P E H T M L P U B L I C " - / / W 3 C / / D T D H T M L 4 . 0 / / E N " " h t t p : / / w w w . w 3 . o r g / T R / R E C - h t m l 4 0 / s t r i c t . d t d " >
< h t m l > < h e a d > < m e t a n a m e = " q r i c h t e x t " c o n t e n t = " 1 " / > < s t y l e t y p e = " t e x t / c s s " >
p , l i { w h i t e - s p a c e : p r e - w r a p ; }
< / s t y l e > < / h e a d > < b o d y s t y l e = " f o n t - f a m i l y : ' M S S h e l l D l g 2 ' ; f o n t - s i z e : 8 . 2 5 p t ; f o n t - w e i g h t : 4 0 0 ; f o n t - s t y l e : n o r m a l ; " >
< p s t y l e = " - q t - p a r a g r a p h - t y p e : e m p t y ; m a r g i n - t o p : 0 p x ; m a r g i n - b o t t o m : 0 p x ; m a r g i n - l e f t : 0 p x ; m a r g i n - r i g h t : 0 p x ; - q t - b l o c k - i n d e n t : 0 ; t e x t - i n d e n t : 0 p x ; " > < / p > < / b o d y > < / h t m l >
the code i’m using for sending and receiving:
Sending code:
qDebug() << “Connected. Sending file to the server”;
QString text = ui->QuestHtmlText->toPlainText();
if(text.length() < 1024)
{
QByteArray block;
QDataStream out(&block, QIODevice::WriteOnly);
out << quint16(0) << QUESTION_HTML;
out << text;
out.device()->seek(0);
out << quint16(block.size() - sizeof(quint16));
qDebug() << "Block size: " << block.size();
socket.write(block);
return;
}
for(int i = 0; i < text.length(); i+=1024)
{
QByteArray block;
QDataStream out(&block, QIODevice::WriteOnly);
out << quint16(0) << QUESTION_HTML;
if((text.length() - i) > 1024)
out << text.mid(i, i+1024);
else
out << text.right(1024 - i);
out.device()->seek(0);
out << quint16(block.size() - sizeof(quint16));
qDebug() << "Block size: " << block.size();
socket.write(block);
}
Receiving code:
qDebug() << "Writing File";
QDataStream in(this);
QString temp = "Teste.html", text;
QFile myFile(".//Questions//" + temp);
myFile.open(QIODevice::WriteOnly);
QDataStream out(&myFile);
while(!in.atEnd())
{
in >> text;
out << text;
}
I solved the problem writing it to a file and getting this file to a QByteArray, and sending the QbyteArray entirely to the socket.