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145 lines
4.3 KiB
Bash
145 lines
4.3 KiB
Bash
#!/bin/sh
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#
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# a perl script was written by Patrick Winnertz 11.12.05
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# and modified by Giovanni Gimelli - Osservatorio Tecnologico Italy
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# it has been re-written by Valerio Pachera (www.linuxludus.it) as
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# simple bash script
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# licensed under GPL2+
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# version 2.0 (21/12/2007)
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# SCOPE
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# The script scope is to start a ica session on different port for
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# each thin client and on default ports for diskless workstation
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# and the server.
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# The port number used for the thinclient will be the last part of the
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# thinclient IP
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# The initial script was modified by Lars Vogdt for openSUSE-Education
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# at Fr 6. Jun 2008.
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ICA_LTSP=$(xprop -root ica_ltsp | sed 's/^.* //' 2> /dev/null)
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if [ "$ICA_LTSP" = "1" ]
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then
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echo "ICA already running on the thin client."
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exit 0
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fi
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PATH=/usr/bin:/bin
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ICA_CONFIG="/etc/sysconfig/ica"
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ITALC_CONFIG="/etc/settings/iTALC Solutions/iTALC.conf"
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ICA_BIN="/usr/bin/ica"
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# Check for existence of needed config file and read it
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if [ ! -r $ICA_CONFIG ]; then
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echo "$ICA_CONFIG does not exist" >&2
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exit 6
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fi
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# set default values
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ICA_IVSPORT="5900"
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ICA_ISDPORT="5800"
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ICA_USESHM="no"
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ICA_USEONETYLE="no"
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# Read config
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. $ICA_CONFIG
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ICA_OPTIONS=""
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if [ "$ICA_USESHM" != "yes" ]; then
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ICA_OPTIONS="$ICA_OPTIONS -noshm"
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fi
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if [ "$ICA_USEONETYLE" != "yes" ]; then
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ICA_OPTIONS="$ICA_OPTIONS -onetile"
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fi
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if [ -n "$ICA_PARAMS" ]; then
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ICA_OPTIONS="$ICA_OPTIONS $ICA_PARAMS"
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fi
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if [ -n "$DISPLAY" ]; then
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DISPLAYOPT="-display $DISPLAY"
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fi
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function parse_ini () {
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IFS=$'\n' && ini=( $(<"$1") ) # convert to line-array
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ini=( ${ini[*]//;*/} ) # remove comments ‘;’
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ini=( ${ini[*]//\#*/} ) # remove comments ‘#’
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ini=( ${ini[*]/\ =\ /=} ) # remove anything with a space around ‘ = ‘
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ini=( ${ini[*]/#[/\}$'\n'cfg_section_} ) # set section prefix
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ini=( ${ini[*]/%]/ \(} ) # convert text2function (1)
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ini=( ${ini[*]/=/=\( } ) # convert item to array
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ini=( ${ini[*]/%/ \)} ) # close array parenthesis
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ini=( ${ini[*]/%\( \)/\(\) \{} ) # convert text2function (2)
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ini=( ${ini[*]/%\} \)/\}} ) # remove extra parenthesis
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ini=( ${ini[*]/#\ */} ) # remove blank lines
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ini=( ${ini[*]/#\ */} ) # remove blank lines with tabs
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ini[0]='' # remove first element
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ini[${#ini[*]} + 1]='}' # add the last brace
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# printf "%s\n" ${ini[*]}
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eval "$(echo "${ini[*]}")" # eval the result
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}
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function get_md5sums () {
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md5sum $1 | awk '" " { print $1}'
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}
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function avahi_announce () {
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IVSPORT=$1
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MD5SUMS=""
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HOST_NAME=$2
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parse_ini "$ITALC_CONFIG"
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cfg_section_keypathspublic
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MD5SUM_1="$(get_md5sums "$admin")"
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MD5SUM_2="$(get_md5sums "$supporter")"
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MD5SUM_3="$(get_md5sums "$teacher")"
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avahi-publish-service "italc $HOST_NAME" _italc._tcp $IVSPORT $MD5SUM_1 $MD5SUM_2 $MD5SUM_3 "$HOST_NAME" >/dev/null &
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}
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function avahi_stop () {
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kill $(ps ux | grep avahi-publish-service | grep italc | grep $IVSPORT | grep $HOSTNAME | awk '" " { print $2 }')
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}
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if [ -x "$ICA_BIN" ]; then
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if [ -f /etc/ltsp_chroot ]; then
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IP=$(ip addr show | grep " inet " | grep -v 127.0.0 | head -n1 | awk '{print \$2}' | sed "s/\/.*//")
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HOST_NAME=$(hostname)
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fi
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# ends any previous ica session of the user that is running the script
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# FIXME: killall --user $(whoami) ica 2>/dev/null; <<- better?
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RUNNING_ICA=$(ps ux | awk '" " { print $2" "$11 }' | grep -E "^[0-9].*ica" | awk '" " { print $1 }')
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if [ -n "$RUNNING_ICA" ]; then
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for process in $RUNNING_ICA; do
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kill $process
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done
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sleep 1
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fi
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if [ x"$ICA_ENABLE" = x"yes" ]; then
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# $LTSP_CLIENT is empty if the script is called on the server or a
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# Diskless Workstation.
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# That's true only if the script is executed after logged in the
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# desktop manager.
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if [ "$LTSP_CLIENT" ]; then
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PORT=$(echo $LTSP_CLIENT | awk -F . '{print $4}')
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ICA_IVSPORT=$((10000 + $PORT))
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ICA_ISDPORT=$((11000 + $PORT))
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IP="$LTSP_CLIENT"
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HOST_NAME="$IP ($USER)"
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else
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HOST_NAME=$(hostname)
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fi
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#start ICA service
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$ICA_BIN $ICA_OPTIONS -ivsport $ICA_IVSPORT -isdport $ICA_ISDPORT $DISPLAYOPT &
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if [ -x /usr/bin/avahi-publish-service ]; then
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if [ -f /var/run/avahi-daemon/pid ]; then
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avahi_stop
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avahi_announce $ICA_IVSPORT $HOST_NAME
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fi
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fi
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fi
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else
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echo "$ICA_BIN doesn't exist or is not executable" >&2
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exit 1
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fi
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