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#!/bin/bash
#
# live: Init script for live image
#
# chkconfig: 345 00 99
# description: Init script for live image.
### BEGIN INIT INFO
# X-Start-Before: display-manager chronyd
### END INIT INFO

. /etc/init.d/functions

if ! strstr "`cat /proc/cmdline`" rd.live.image || [ "$1" != "start" ]; then
    exit 0
fi

if [ -e /.liveimg-configured ] ; then
    configdone=1
fi

exists() {
    which $1 >/dev/null 2>&1 || return
    $*
}

livedir="LiveOS"
for arg in `cat /proc/cmdline` ; do
  if [ "${arg##rd.live.dir=}" != "${arg}" ]; then
    livedir=${arg##rd.live.dir=}
    continue
  fi
  if [ "${arg##live_dir=}" != "${arg}" ]; then
    livedir=${arg##live_dir=}
  fi
done

# Enable swap unless requested otherwise
swaps=`blkid -t TYPE=swap -o device`
if ! strstr "`cat /proc/cmdline`" noswap && [ -n "$swaps" ] ; then
  for s in $swaps ; do
    action "Enabling swap partition $s" swapon $s
  done
fi
if ! strstr "`cat /proc/cmdline`" noswap && [ -f /run/initramfs/live/${livedir}/swap.img ] ; then
  action "Enabling swap file" swapon /run/initramfs/live/${livedir}/swap.img
fi

# Support for persistent homes
mountPersistentHome() {
  # support label/uuid
  if [ "${homedev##LABEL=}" != "${homedev}" -o "${homedev##UUID=}" != "${homedev}" ]; then
    homedev=`/sbin/blkid -o device -t "$homedev"`
  fi

  # if we're given a file rather than a blockdev, loopback it
  if [ "${homedev##mtd}" != "${homedev}" ]; then
    # mtd devs don't have a block device but get magic-mounted with -t jffs2
    mountopts="-t jffs2"
  elif [ ! -b "$homedev" ]; then
    loopdev=`losetup -f`
    if [ "${homedev##/run/initramfs/live}" != "${homedev}" ]; then
      action "Remounting live store r/w" mount -o remount,rw /run/initramfs/live
    fi
    losetup $loopdev $homedev
    homedev=$loopdev
  fi

  # if it's encrypted, we need to unlock it
  if [ "$(/sbin/blkid -s TYPE -o value $homedev 2>/dev/null)" = "crypto_LUKS" ]; then
    echo
    echo "Setting up encrypted /home device"
    plymouth ask-for-password --command="cryptsetup luksOpen $homedev EncHome"
    homedev=/dev/mapper/EncHome
  fi

  # and finally do the mount
  mount $mountopts $homedev /home
  # if we have /home under what's passed for persistent home, then
  # we should make that the real /home.  useful for mtd device on olpc
  if [ -d /home/home ]; then mount --bind /home/home /home ; fi
  [ -x /sbin/restorecon ] && /sbin/restorecon /home
  if [ -d /home/liveuser ]; then USERADDARGS="-M" ; fi
}

# Help locate persistent homes
findPersistentHome() {
  for arg in `cat /proc/cmdline` ; do
    if [ "${arg##persistenthome=}" != "${arg}" ]; then
      homedev=${arg##persistenthome=}
    fi
  done
}

if strstr "`cat /proc/cmdline`" persistenthome= ; then
  findPersistentHome
elif [ -e /run/initramfs/live/${livedir}/home.img ]; then
  homedev=/run/initramfs/live/${livedir}/home.img
fi

# Mount the persistent home if it's available
if ! strstr "`cat /proc/cmdline`" nopersistenthome && [ -n "$homedev" ] ; then
  action "Mounting persistent /home" mountPersistentHome
fi

if [ -n "$configdone" ]; then
  exit 0
fi

# Create the liveuser (no password) so automatic logins and sudo works
action "Adding live user" useradd $USERADDARGS -c "Live System User" liveuser
passwd -d liveuser > /dev/null
usermod -aG wheel liveuser > /dev/null

# Same for root
passwd -d root > /dev/null

# Turn off firstboot (similar to a DVD/minimal install, where it asks
# for the user to accept the EULA before bringing up a TTY)
systemctl --no-reload disable firstboot-text.service 2> /dev/null || :
systemctl --no-reload disable firstboot-graphical.service 2> /dev/null || :
systemctl stop firstboot-text.service 2> /dev/null || :
systemctl stop firstboot-graphical.service 2> /dev/null || :

# Prelinking damages the images
sed -i 's/PRELINKING=yes/PRELINKING=no/' /etc/sysconfig/prelink &>/dev/null || :


# Turn off mdmonitor by default
systemctl --no-reload disable mdmonitor.service 2> /dev/null || :
systemctl --no-reload disable mdmonitor-takeover.service 2> /dev/null || :
systemctl stop mdmonitor.service 2> /dev/null || :
systemctl stop mdmonitor-takeover.service 2> /dev/null || :

# Even if there isn't gnome, this doesn't hurt.
gsettings set org.gnome.software download-updates 'false' || :

# Disable cron
systemctl --no-reload disable crond.service 2> /dev/null || :
systemctl --no-reload disable atd.service 2> /dev/null || :
systemctl stop crond.service 2> /dev/null || :
systemctl stop atd.service 2> /dev/null || :

# Disable abrt
systemctl --no-reload disable abrtd.service 2> /dev/null || :
systemctl stop abrtd.service 2> /dev/null || :

# Don't sync the system clock when running live (RHBZ #1018162)
sed -i 's/rtcsync//' /etc/chrony.conf

# Mark things as configured
touch /.liveimg-configured

# add static hostname to work around xauth bug
# https://bugzilla.redhat.com/show_bug.cgi?id=679486
# the hostname must be something else than 'localhost'
# https://bugzilla.redhat.com/show_bug.cgi?id=1370222
echo "localhost-live" > /etc/hostname

mkdir -p /home/liveuser/.config/xfce4
# ugly stuff, this should give us a default background for now
#mkdir -p /usr/share/backgrounds/images
#ln -s /usr/share/backgrounds/f32/default/f32.png #  /usr/share/backgrounds/images/default.png

cat > /home/liveuser/.config/xfce4/helpers.rc << FOE
MailReader=sylpheed-claws
FileManager=Thunar
WebBrowser=firefox
FOE

# disable screensaver locking (#674410)
cat >> /home/liveuser/.xscreensaver << FOE
mode:           off
lock:           False
dpmsEnabled:    False
FOE

# deactivate xfconf-migration (#683161)
rm -f /etc/xdg/autostart/xfconf-migration-4.6.desktop || :

# deactivate xfce4-panel first-run dialog (#693569)
mkdir -p /home/liveuser/.config/xfce4/xfconf/xfce-perchannel-xml
cp /etc/xdg/xfce4/panel/default.xml /home/liveuser/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-panel.xml

# set up lightdm autologin
sed -i 's/^#autologin-user=.*/autologin-user=liveuser/' /etc/lightdm/lightdm.conf
sed -i 's/^#autologin-user-timeout=.*/autologin-user-timeout=0/' /etc/lightdm/lightdm.conf
sed -i 's/^#show-language-selector=.*/show-language-selector=true/' /etc/lightdm/lightdm-gtk-greeter.conf

# set Xfce as default session, otherwise login will fail
sed -i 's/^#user-session=.*/user-session=xfce/' /etc/lightdm/lightdm.conf

# debrand
#sed -i "s/Red Hat Enterprise/Rocky/g" /usr/share/anaconda/gnome/fedora-welcome.desktop
#sed -i "s/RHEL/Rocky Linux/g" /usr/share/anaconda/gnome/fedora-welcome
#sed -i "s/Red Hat Enterprise/Rocky/g" /usr/share/anaconda/gnome/fedora-welcome
#sed -i "s/org.fedoraproject.AnacondaInstaller/fedora-logo-icon/g" /usr/share/anaconda/gnome/fedora-welcome
#sed -i "s/org.fedoraproject.AnacondaInstaller/fedora-logo-icon/g" /usr/share/applications/liveinst.desktop

# set default background
cat > /etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-desktop.xml <<XFCEEOF
<?xml version="1.0" encoding="UTF-8"?>

<channel name="xfce4-desktop" version="1.0">
  <property name="backdrop" type="empty">
    <property name="screen0" type="empty">
      <property name="monitor0" type="empty">
        <property name="color-style" type="int" value="0"/>
        <property name="image-style" type="int" value="5"/>
        <property name="last-image" type="string" value="/usr/share/backgrounds/rocky-default-9-abstract-2-day.png"/>
        <property name="last-single-image" type="string" value="/usr/share/backgrounds/rocky-default-9-abstract-2-day.png"/>
        <property name="image-path" type="string" value="/usr/share/backgrounds/rocky-default-9-abstract-2-day.png"/>
      </property>
    </property>
  </property>
</channel>
XFCEEOF

# Show harddisk install on the desktop
sed -i -e 's/NoDisplay=true/NoDisplay=false/' /usr/share/applications/liveinst.desktop
mkdir /home/liveuser/Desktop
cp /usr/share/applications/liveinst.desktop /home/liveuser/Desktop/

if [ -f /usr/share/anaconda/gnome/fedora-welcome.desktop  ]; then
  mkdir -p ~liveuser/.config/autostart
  cp /usr/share/anaconda/gnome/fedora-welcome.desktop /usr/share/applications/
  cp /usr/share/anaconda/gnome/fedora-welcome.desktop ~liveuser/.config/autostart/
fi

# no updater applet in live environment
rm -f /etc/xdg/autostart/org.mageia.dnfdragora-updater.desktop

# and mark it as executable (new Xfce security feature)
chmod +x /home/liveuser/Desktop/liveinst.desktop

cat > ~liveuser/.profile << PROFILE_EOF
export XDG_DATA_DIRS="\${XDG_DATA_DIRS}:\${HOME}/Desktop"
PROFILE_EOF

# move to anaconda - probably not required for XFCE.
mv /usr/share/applications/liveinst.desktop /usr/share/applications/anaconda.desktop

# this goes at the end after all other changes. 
chown -R liveuser:liveuser /home/liveuser
restorecon -R /home/liveuser
restorecon -R /
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