#!/bin/bash -f
# wakeup host at specified time.
# CGI vars:
# hostname=HostName
# wake_second=UnixTimeSecond
# wake_time=HumanReadableDateTime
function uri_unescape() {
local b c i l
b=""
while read
do
i=0
l=${#REPLY}
while (( ${i} < ${l} ))
do
c=${REPLY:${i}:1}
case ${#b} in
(0)
case "${c}" in
(+)
echo -n " "
;;
(%)
b='\x'
;;
(*)
echo -n "${c}"
;;
esac
;;
(2)
b="${b}${c}"
;;
(3)
b="${b}${c}"
printf "%b" "${b}"
b=""
;;
(*)
echo -n "${c}"
b=""
;;
esac
i=$(( ${i} + 1 ))
done
done
}
function query_var() {
key="$1"
echo ${QUERY_STRING} | \
tr '&' '\n' | \
grep "^$1=" | \
sed -n -e "s/^$1=//p" | \
uri_unescape
}
operation="add"
order_state="add"
shell_operators='$|&;<>(){}[]`'
wake_host=`query_var hostname | tr -dc '[:alnum:]._-' `
wake_second=`query_var wake_second | tr -dc '+-[:digit:]'`
wake_time=`query_var wake_time | tr -d "${shell_operators}"`
if [[ -n "${wake_host}" ]]
then
# Add waketimer
wake_ip=`ping -c 1 "${wake_host}" | \
grep PING | \
cut -f 2 -d '(' | \
cut -f 1 -d ')'`
if [[ -z "${wake_ip}" ]]
then
operation="error"
order_state="not_found"
else
wake_mac=`/usr/sbin/arp -n | \
fgrep "${wake_ip}" | \
gawk '{print $3}'`
if [[ -z "${wake_mac}" ]]
then
operation="error"
order_state="not_found"
fi
fi
else
# Request active list.
wake_ip=""
wake_mac=""
operation="list"
order_state="list"
fi
if [[ -n "${wake_time}" ]]
then
wake_time_s=`date --date="${wake_time}" +%s 2>/dev/null`
if [[ -n "${wake_time_s}" ]]
then
wake_second=$(( ${wake_time_s} + 0 ))
else
operation="error"
order_state="error"
fi
fi
now_sec=`date +%s`
wake_sleep=$(( ${wake_second} - ${now_sec} ))
if (( ${wake_sleep} < 0 ))
then
wake_second=${now_sec}
wake_sleep=0
fi
order_label="${wake_host}/${wake_mac}/${wake_second}"
page_title=""
if [[ "${operation}" == "list" ]]
then
page_title="WOL waketimers list"
else
page_title="WOL waketimers order ${order_label}"
fi
echo "Content-type: text/html"
echo ""
echo ""
echo ""
echo "${page_title}"
echo ""
echo ""
echo "${page_title}
"
echo "
"
echo ""
echo "| order-id | time | state |
|---|
"
for find_id in `ps -eo "%a" | \
grep 'bash.*sleep.*wakeonlan.*echo' | \
sed 's/.*echo//'`
do
state="queued"
if [[ "${find_id}" == "${order_label}" ]]
then
operation="nop"
order_state="queued"
fi
if [[ "${operation}" == "list" ]]
then
active_time=`basename "${find_id}"`
active_ymdhms=`date --date=@${active_time} "+%Y/%m/%d %H:%M:%S"`
echo -n ""
echo -n "| ${find_id} | "
echo -n "${active_ymdhms} | "
echo -n "${state} | "
echo "
"
fi
done
if [[ "${operation}" == "add" ]]
then
( nohup /bin/bash -c "sleep ${wake_sleep}; wakeonlan ${wake_mac}; echo ${order_label}"
) > /dev/null 2>&1 &
fi
if [[ "${operation}" != "list" ]]
then
active_ymdhms=`date --date=@${wake_second} "+%Y/%m/%d %H:%M:%S"`
echo -n ""
echo -n "| ${order_label} | "
echo -n "${active_ymdhms} | "
echo -n "${order_state} | "
echo "
"
fi
echo "
"
echo ""
echo ""
exit 0