#!/bin/bash
# Tue Feb 17 17:36:38 EST 2004
# NAME: pop3stat
# Copyright 2004, Chris F.A. Johnson
# Released under the terms of the GNU General Public License
# check POP3 server for e-mail

## set these variables to appropriate values
pop=pop.your-isp.com
user=$USER
pass=password
image=$HOME/mail.png

## or put them into the config file
configfile=$HOME/.pop3statrc

pop3stat() {
    exec 3<>/dev/tcp/$pop/110
    popcmd user $user || return 1
    popcmd pass $pass || return 2
    popcmd stat || return 3
    popcmd quit || return 4
}

popcmd() {
    local IFS=${IFS}$'\r'
    cmd=$*
    echo $cmd >&3
    read ok num x <&3
    [ $verbose -ge 1 ] && printf "%s\n" "$1: $ok $num $x"
    [ "$ok" = "+OK" ]
}

popupicon() {
    set -- $(ps awwwxo user,pid,command | grep "$USER.*[m]ail-notify.*$image")
    [ -n "$2" ] && kill $2
    [ $num -gt 0 ] && {
       display -geometry +1+1 -name mail-notify -comment "$num" $image &
    }
}

[ -s "$configfile" ] && . "$configfile"

verbose=0
while getopts vc: var
do
  case $var in
    c) configfile=$OPTARG ;;
    v) verbose=$(( $verbose + 1 )) ;;
  esac
done
shift $(( $OPTIND - 1 ))

pop3stat || { echo "popcmd \"$cmd\" failed"; exit 5; }

case ${1:-t} in
    g) popupicon ;;
    t) [ $num -eq 1 ] && _PL= || _PL=s
       echo "You have $num message$_PL"
       ;;
esac