Script to run skype inside a restricted environment.

skype-restricted.sh

#!/bin/sh

RESOLUTION=800x600
X_DISPLAY=7
# Save the current keyboard layout, since we want to configure Xephyr
#  to use the same
LAYOUT=$(setxkbmap -query | grep layout | cut -d" " -f6)

Xephyr -screen $RESOLUTION -host-cursor -br :$X_DISPLAY &

# Sleep a second while Xephyr start.
# FIXME: There's probably a more elegant way to know when it has finished
#  starting up.
sleep 1

export DISPLAY=:$X_DISPLAY
xhost +SI:localuser:_skype
sudo -u _skype setxkbmap -layout $LAYOUT

# Use some lightwight WM because we'll be unable to switch windows otherwise.
sudo -u _skype blackbox &

# Use a tray or we'll loose access to skype when we close the main window.
sudo -u _skype trayer --align right --width 5 &

# Launch Skype
sudo -u _skype /var/skype/skype

# After skype exits, clean everything else
# FIXME: Check which signal to use, because sometimes you kill Xephyr, but it
#  doesn't release the DISPLAY
exit
sudo -u _skype pkill -u _skype