#!/bin/sh

# EvoMaintenance script
# Dependencies (all OS): git postgresql-client
# Dependencies (Debian): sudo

# version 0.2
# Copyright 2007-2008 Gregory Colpart <reg@evolix.fr>, Evolix <info@evolix.fr>

SYSTEME=$(uname -s)

test -f /etc/evomaintenance.cf && . /etc/evomaintenance.cf

[ $HOSTNAME ] || HOSTNAME=$(hostname)
[ $EVOMAINTMAIL ] || EVOMAINTMAIL=evomaintenance-$(echo $HOSTNAME | cut -d- -f1)@$REALM

PATH=$PATH:/usr/sbin
SENDMAIL=$(which sendmail)
LOGFILE=/var/log/evomaintenance.log

touch ${LOGFILE}
chown root:adm ${LOGFILE}

# get ipaddress

BEGIN_YEAR=$(date "+%Y")

if [ $SYSTEME = "Linux" ]; then
	IP=$(LC_ALL=C who | grep $(ps -o tty= | tail -1) | tr -s ' ' | cut -d" " -f6 | sed -e "s/^(// ; s/)$//")
	BEGIN_DATE=$(LC_ALL=C who | grep $(ps -o tty= | tail -1) | tr -s ' ' | cut -d" " -f3,4,5)
	_USER=$SUDO_USER
elif [ $SYSTEME = "OpenBSD" ]; then
	IP=$(LC_ALL=C who | grep $(env | grep SSH_TTY | cut -d"/" -f3) | tr -s ' ' | cut -d" " -f6  | sed -e "s/^(// ; s/)$//")
	BEGIN_DATE=$(LC_ALL=C who | grep $(env | grep SSH_TTY | cut -d"/" -f3) | tr -s ' ' | cut -d" " -f3,4,5)
	_USER=$USER
else
	echo "OS not detected!"
	exit 1
fi

# end_date
NOW=$(date -u +"%Y-%m-%dT%H:%M:%SZ")

# details
echo "Please, enter details about your maintenance"
read TEXTE

if [ "$TEXTE" = "" ]; then
    echo "no value..."
    exit 1
fi

# recapitulatif
echo "hostname = $HOSTNAME"
echo "user = $_USER"
echo "IP = $IP"
echo "begin date = $BEGIN_YEAR $BEGIN_DATE"
echo "details = $TEXTE"

echo "To cancel, [Ctrl+C] else press [Enter]"
read enter

# write log
LOG_TEXTE=`echo "${TEXTE}" | sed 's/"/\\\"/g'`

echo "${NOW} hostname=\"${HOSTNAME}\" user=\"${SUDO_USER}\" ip=\"${IP}\" begin_date=\"${BEGIN_YEAR} ${BEGIN_DATE}\" message=\"${LOG_TEXTE}\"" >> ${LOGFILE}

# git commit
if (test -x /usr/bin/git); then
    cd /etc/
    git add .
    GIT_COMMIT=$(git commit -a -m "$LOG_TEXTE" --author="$_USER <$_USER@evolix.net>")
fi

# insert into PG
SQL_TEXTE=`echo "$TEXTE" | sed "s/'/\\\\\\'/g ; s@/@\\\\\/@g ; s@\\&@et@g"`

echo "
INSERT INTO evomaint(hostname,userid,ipaddress,begin_date,end_date,details)
VALUES ('$HOSTNAME','$_USER','$IP','$BEGIN_YEAR $BEGIN_DATE',now(),'$SQL_TEXTE') " | \
psql $PGDB $PGTABLE -h $PGHOST

# send mail
cat /usr/share/scripts/evomaintenance.tpl | \
    sed -e "s/__TO__/$EVOMAINTMAIL/ ; s/__HOSTNAME__/$HOSTNAME/ ; s/__USER__/$_USER/ ; s/__BEGIN_DATE__/$BEGIN_YEAR $BEGIN_DATE/ ; s/__TEXTE__/$TEXTE/ ; s/__IP__/$IP/ ; s/__FULLFROM__/$FULLFROM/ ; s/__FROM__/$FROM/ ; s/__URGENCYFROM__/$URGENCYFROM/ ; s/__URGENCYTEL__/$URGENCYTEL/"| \
        $SENDMAIL -oi -t -f $FROM