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#!/bin/ash
DPMS=False
if which xscreensaver; then
secsToTime() {
local NUM SECS MINS HRS
NUM="$1"
SECS=0$(( NUM % 60 ))
MINS=0$(( ( NUM / 60 ) % 60 ))
HRS=0$(( ( NUM / 3600 ) % 60 ))
echo "${HRS:$(( ${#HRS} - 2 )):2}:${MINS:$(( ${#MINS} - 2 )):2}:${SECS:$(( ${#SECS} - 2 )):2}"
}
[ -z "$UID" ] && UID=$(id -u)
[ -z "$HOME" ] && HOME="$(getent passwd "$UID" | head -n 1 | awk -F ':' '{print $6}')"
. /opt/openslx/config
SBY=${SLX_SCREEN_STANDBY_TIMEOUT}
if [ -n "${SLX_EXAM}" ]; then
SLX_LOGOUT_TIMEOUT=0
SBY=0
elif [ -z "$SBY" ]; then
SBY=0
elif [ "$SBY" -gt 0 ] && [ "$SBY" -lt 60 ]; then
SBY=60
elif ! [ "$SBY" -ge 0 ]; then # isNumeric?
SBY=0
fi
# Make sure standby timeout is less than logout timeout, otherwise, disable standby
if [ "$SBY" -gt 0 ]; then
if [ "$SLX_LOGOUT_TIMEOUT" -gt 0 ]; then
if [ "$SBY" -lt 300 ]; then
SBY=300
fi
if [ "$SLX_LOGOUT_TIMEOUT" -lt "$SBY" ]; then
SBY=0
fi
fi
fi
# Create config value for standby timeout
[ "$SBY" -gt 0 ] && DPMS=True
STANDBY="$( secsToTime "$SBY" )"
# Explicit screen saver timeout set
TIMEOUT="$( secsToTime "$SLX_SCREEN_SAVER_TIMEOUT" )"
if [ -z "$SLX_SCREEN_SAVER_GRACE_TIME" ]; then
GRACE="00:00:15"
else
GRACE="$( secsToTime "$SLX_SCREEN_SAVER_GRACE_TIME" )"
fi
if ! [ -s "$HOME/.xscreensaver" ]; then
cat > "$HOME/.xscreensaver" <<EOF
mode: one
cycle: 99:00:00
timeout: $TIMEOUT
lock: True
lockTimeout: $GRACE
fade: False
unfade: False
dpmsEnabled: $DPMS
dpmsStandby: $STANDBY
dpmsSuspend: $STANDBY
dpmsOff: $STANDBY
dpmsFullThrottle: True
newLoginCommand:
externalUngrabCommand: /opt/openslx/xscreensaver/ungrab
programs: /opt/openslx/bin/bwlp-screensaver
selected: 0
EOF
fi
xscreensaver -no-splash &
fi
true
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