QNetworkAccessManager internet status usage ?!?

[philm]

Hi there. Maybe this was already asked but since we added this commit to our source my problem starte:

http://gitorious.org/chakra/tribe/co...703bc04c0ab56b

It seems we disabled installation of bundles and pkgs completely. Even in konversation this check is not used for over one year:

http://gitorious.com/konversation/ko...commit/9ad4111

Now I found some in qt rev:

http://doc.qt.nokia.com/4.7-snapshot...ssibility-enum

... still don't get it right:

...
#include <QNetworkAccessManager>
...
    if (0 == QNetworkAccessManager::NotAccessible) {
        QString completeMessage = i18n("Sorry, you have no internet connection at the moment \n"
                                       "Will stop bundle(s) installation now");
 
        KDialog *dialog = new KDialog(this, Qt::FramelessWindowHint);
        dialog->setButtons(KDialog::Ok);
        dialog->setModal(true);
        bool retbool;
 
        KMessageBox::createKMessageBox(dialog, QMessageBox::Warning, completeMessage,
                                       QStringList(), QString(), &retbool, KMessageBox::Notify);
        return;
    }

...
#include <QNetworkAccessManager>
...
    if (0 == QNetworkAccessManager::NotAccessible) {
        QString completeMessage = i18n("Sorry, you have no internet connection at the moment \n"
                                       "Will stop bundle(s) installation now");

        KDialog *dialog = new KDialog(this, Qt::FramelessWindowHint);
        dialog->setButtons(KDialog::Ok);
        dialog->setModal(true);
        bool retbool;

        KMessageBox::createKMessageBox(dialog, QMessageBox::Warning, completeMessage,
                                       QStringList(), QString(), &retbool, KMessageBox::Notify);
        return;
    }

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Has anybody an idea?

[wysota]

What exactly is the problem?

[philm]

Well, I don't get the status at all. What I want to achieve:

User clicks on button to install a package in linux after he selected it from a list.
If you don't have internet connection a message should be shown telling him: No internet connection - No Package installation"
Progress should terminate then else it should start the package installation routine.

Problem is now: How to get a proper internet status with a value I can use to decide what to do if internet connection is there or not.

In bash I would ping google and use the result:

# check if we have a internet connection
ping_check=$(LC_ALL=C ping -c 1 www.google.com | grep "1 received") 
 
...
 
		if [ "${ping_check}" != "" ] ; then
			pkg_installed=`pacman -Q --noconfirm | grep ${KDE_L10N_PREFIX}-${kdelang}`
			pkg_check=`pacman -Ss ${KDE_L10N_PREFIX}-${kdelang} --noconfirm | grep ${KDE_L10N_PREFIX}-${kdelang}`
			if [ "${pkg_check}" = "" ] || [ "${pkg_installed}" != "" ]; then
				msg "no ${KDE_L10N_PREFIX}-${kdelang} available or already installed. skipping"
			else
				msg "installing ${KDE_L10N_PREFIX}-${kdelang}"
				chroot ${mountpoint} /usr/bin/pacman -Syf ${KDE_L10N_PREFIX}-${kdelang} --noconfirm
			fi
		else
			msg "no internet connection available. skipping"
		fi

# check if we have a internet connection
ping_check=$(LC_ALL=C ping -c 1 www.google.com | grep "1 received") 

...

		if [ "${ping_check}" != "" ] ; then
			pkg_installed=`pacman -Q --noconfirm | grep ${KDE_L10N_PREFIX}-${kdelang}`
			pkg_check=`pacman -Ss ${KDE_L10N_PREFIX}-${kdelang} --noconfirm | grep ${KDE_L10N_PREFIX}-${kdelang}`
			if [ "${pkg_check}" = "" ] || [ "${pkg_installed}" != "" ]; then
				msg "no ${KDE_L10N_PREFIX}-${kdelang} available or already installed. skipping"
			else
				msg "installing ${KDE_L10N_PREFIX}-${kdelang}"
				chroot ${mountpoint} /usr/bin/pacman -Syf ${KDE_L10N_PREFIX}-${kdelang} --noconfirm
			fi
		else
			msg "no internet connection available. skipping"
		fi

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[wysota]

See the docs for Bearer Management.

By the way, pinging Google is a bit amateur and unreliable approach - your ISP might be blocking ping calls and then what?