post_install() {
    getent group jdownloader &>/dev/null || groupadd -r jdownloader >/dev/null
        getent passwd jdownloader &>/dev/null || useradd -r -g jdownloader -d /opt/JDownloader/ -s /bin/false -c jdownloader jdownloader >/dev/null
    if [ -d "/opt/JDownloader/" ]; then
        chown -R jdownloader:jdownloader /opt/JDownloader/
        chmod -R 0775 /opt/JDownloader/
        chmod g+s "/opt/JDownloader"
        setfacl -d -m u::rwx,g::rwx,o::rx "/opt/JDownloader"
    fi
    xdg-icon-resource forceupdate --theme hicolor &>/dev/null
    update-desktop-database -q
        update-mime-database /usr/share/mime
    echo "Don't forget: You have to run 'JDownloaderHeadless' multiple times manually until you've configured MyJdownloader settings"
}

post_upgrade() {
    post_install
}

post_remove() {
    getent passwd jdownloader &>/dev/null && userdel jdownloader >/dev/null
        getent group jdownloader &>/dev/null && groupdel jdownloader >/dev/null
        rm -Rf /opt/JDownloader
}
