rc.mailMyIp

#!/bin/bash

###############
# DEFINITIONS #
###############

FILE=/tmp/.mailMyIP
DATE=`date +"%F %H:%M:%S"`
ADDRS="[email protected]"
MSMTP=`which msmtp`
PING=`which ping`
SED=`which sed`
PRINTF=`which printf`
IFCONFIG=`which ifconfig`


####################
# FUNCTIONS: BEGIN #
####################

MSG() {
    BODY="Subject: NAVI has booted, check your IP\nDate: $DATE\n\nNAVI was booted at $DATE\nNAVI IP=$IP\n"
    echo "$BODY" > $FILE
    echo "$BODY" | $MSMTP -C /root/.msmtprc $ADDRS
}

mailMyIp() {
    if [ -f $FILE ]; then
        OLDIP=`cat $FILE | sed '/IP=/!d;s/.*=//g'`
        [ "$IP" != "$OLDIP" ] && MSG
    else
        MSG
    fi
}

OK() {
    echo -e "\033[60G[  \033[32;1mOK\033[0m  ]"
}

FAIL() {
    echo -e "\033[60G[ \033[31;1mFAIL\033[0m ]"
}

GET_IP() {
    IP=`curl -s http://myip.com.br/index2.php | sed '/Seu\ IP/!d;s/.*\IP://g;s/<.*//g;s/\ //g'`
    echo -n $IP
}

TEST_INET() {
    ETH0=`$IFCONFIG eth0 | sed '/inet\ /!d;s/.*r://g;s/\..*$//g'`

    if [ $ETH0 -ne 192 ]; then
        echo "Network not available"
        exit -1
    else
        printf "%b" "Testing your Internet Connection:"
        PING_COUNT=`$PING -l3 -w1 173.194.34.104 2> /dev/null | $SED '/rec/!d;s/.*ted,\ //g;s/\ .*//g'`
    fi
}

##################
# FUNCTIONS: END #
##################


case "$1" in
'start')
    TEST_INET

    if [ $PING_COUNT -eq 0 ]; then
        FAIL
    else
        OK
        echo -n "   Retrieving external IP:   "
        GET_IP

        if [ -n "$IP" ]; then
            OK
            echo -en "   Retrieving IP from gmail: "
            NAVI_IP=`$HOME/bin/naviip`

            if [ -n "$NAVI_IP" ]; then
                echo -n "$NAVI_IP"
                OK
            else
                FAIL
            fi

            if [ "$IP" != "$NAVI_IP" ]; then
                echo -en "   Mailing the new IP to $ADDRS"
                MSG
                OK
            else
                echo "   Nothing to do."
            fi
        else
            FAIL
        fi
    fi
    ;;
'check')
    TEST_INET 2&>1 /dev/null
    if [ $PING_COUNT -ne 0 ]; then
        GET_IP 2&>1 /dev/null
        if [ -n "$IP" ]; then
            NAVI_IP=`/usr/local/bin/naviip`
            [ "$IP" != "$NAVI_IP" ] && MSG
        fi
    fi
    ;;
*)
    echo "usage $0 {start|check}"
esac