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calculate-utils-2.2-install/data/xautologin

114 lines
3.4 KiB

#!/bin/bash
# Copyright 2011 Calculate Ltd. http://www.calculate-linux.org
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# first param - autologin user
XUSER=${1:-guest}
# number of virtual console
TTYNUM=${2:-7}
# number of virtual console
DISPLAYNUM=${3:-\:0}
MAINLOOP=1
# write pid for init.d/xdm (detect X for this xautologin)
echo $BASHPID >/var/run/bash.pid
# function for kill X server by TERM,INT,QUIT signals
killXserver()
{
KILLXPID=$XPID
XPID=
MAINLOOP=
# kill X by TERM
[[ -d /proc/$KILLXPID ]] && kill $KILLXPID &>/dev/null
# wait 5 sec
for i in {0..5}
do
[[ -d /proc/$KILLXPID ]] || break
sleep 1
done
WAITRELOGIN=
# kill X by -KILL
[[ -d /proc/$KILLXPID ]] && kill -KILL $KILLXPID &>/dev/null
}
trap killXserver SIGTERM SIGINT SIGQUIT
# rerun x session for XUSER while not shutdown and bash not receivce TERM
HOMEDIR=`getent passwd $XUSER | awk -F: '{ print( $6 ); }'`
# export display num
export DISPLAY=${DISPLAYNUM}
export XAUTHORITY=$HOMEDIR/.Xauthority
WAITRELOGIN=7
while id $XUSER &>/dev/null &&
[[ -n $MAINLOOP ]] &&
[[ "$(rc-status -r)" != "shutdown" ]]
do
# disable relogin by fourth param
if [[ "$4" == "off" ]];then
MAINLOOP=
fi
# prepare user xauthority
mcookie | sed -e "s/^/add ${DISPLAYNUM} . /" | xauth -f $XAUTHORITY -q
chown $XUSER. $XAUTHORITY
chmod 600 $XAUTHORITY
# perform user profile setting up
X ${DISPLAYNUM} -auth $XAUTHORITY vt${TTYNUM} -noreset &
XPID=$!
env USER=${XUSER} /usr/share/calculate/xdm/xdm --login || break
# write pam enviroment for pam_ck_connector
cat >/home/${XUSER}/.pam_environment <<EOF
CKCON_DISPLAY_DEVICE=
CKCON_X11_DISPLAY_DEVICE=/dev/tty${TTYNUM}
CKCON_X11_DISPLAY=${DISPLAYNUM}
EOF
# registry user in utmp and wtmp
sessreg -a -l ${DISPLAYNUM} ${XUSER}
# run x session for user XUSER in background
su - ${XUSER} -c 'source /etc/profile
# replace xinit for startx
xinit()
{
# if file is script run it throught bash
if file $1 | grep -1 "POSIX shell script"
then
/bin/bash $*
else
$*
fi
}
# run script start xsession
source /usr/bin/startx' &
# wait for right work trap SIGTERM
XSESSIONPID=$!
while [[ -d /proc/$XSESSIONPID ]] &&
[[ "$(rc-status -r)" != "shutdown" ]]
do
sleep 1
done
# remove user from utmp and wtmp
sessreg -d -l ${DISPLAYNUM} ${XUSER}
# perform logout scripts for user
if [[ -n $WAITRELOGIN ]]
then
sleep $WAITRELOGIN
fi
env USER=${XUSER} /usr/share/calculate/xdm/xdm --logout
[[ -n $XPID ]] && kill $XPID
wait $XPID
done
exit 0