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Limit outbound avatar size to 64kB

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tux3 2015-05-10 00:56:41 +02:00
parent 2ff2414627
commit 8407bbada9
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GPG Key ID: 7E086DD661263264
1 changed files with 31 additions and 5 deletions
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36
src/widget/form/profileform.cpp
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@ -192,6 +192,16 @@ void ProfileForm::setToxId(const QString& id)
void ProfileForm::onAvatarClicked()
{
auto picToPng = [](QPixmap pic)
{
QByteArray bytes;
QBuffer buffer(&bytes);
buffer.open(QIODevice::WriteOnly);
pic.save(&buffer, "PNG");
buffer.close();
return bytes;
};
QString filename = QFileDialog::getOpenFileName(0,
tr("Choose a profile picture"),
QDir::homePath(),
@ -214,11 +224,27 @@ void ProfileForm::onAvatarClicked()
return;
}
QByteArray bytes;
QBuffer buffer(&bytes);
buffer.open(QIODevice::WriteOnly);
pic.save(&buffer, "PNG");
buffer.close();
// Limit the avatar size to 64kB
// We do a first rescale to 256x256 in case the image was huge, then keep tryng from here
QByteArray bytes{picToPng(pic)};
if (bytes.size() > 65535)
{
pic = pic.scaled(256,256, Qt::KeepAspectRatio, Qt::SmoothTransformation);
bytes = picToPng(pic);
}
if (bytes.size() > 65535)
bytes = picToPng(pic.scaled(128,128, Qt::KeepAspectRatio, Qt::SmoothTransformation));
if (bytes.size() > 65535)
bytes = picToPng(pic.scaled(64,64, Qt::KeepAspectRatio, Qt::SmoothTransformation));
if (bytes.size() > 65535)
bytes = picToPng(pic.scaled(32,32, Qt::KeepAspectRatio, Qt::SmoothTransformation));
// If this happens, you're really doing it on purpose.
if (bytes.size() > 65535)
{
QMessageBox::critical(this, tr("Error"), tr("This image is too big"));
return;
}
Nexus::getCore()->setAvatar(bytes);
}