#!/bin/sh
#
#   A tool to wrap "vi" or any other file editor. What it does 
# is after a file has been modified, you will recive a e-mail with 
# the changes (diff). If a new file is created, ( $ wrapper.sh newfile.txt)
# you will recive a e-mail Noting what file had been added. I wrote this 
# to keep track of files changes made on a fairly large website where users
# were making changes without notifacation. Though  Not the best solution, 
# but it was a quick solution. 
#
#
# - noconflic
# Tue Dec 17 15:55:37 CST 2002
#
# http://nocon.darkflame.net/
# nocon@darkflame.net
#
#
#--------------------------------------------#
#            BEGIN CONFIG                    #
#--------------------------------------------#
#

# Who to send diffs to 
ADDR=user@host.com

# Command to wrap
CMD=/usr/bin/vi

# Temp file dir
TMPD=/var/tmp

# Commnads needed
DIFFCMD=/bin/diff
MAILPROG=/usr/bin/mailx

#--------------------------------------------#
#             END CONFIG                     #
#--------------------------------------------#

###################
# Start Functions #
###################

cleanup() {
rm -f ${TMPF} 
rm -f ${DIFLE} 
} 

mailinfo() {
cat << EOF

Hostname: ${HOST} 
Username: ${USER} 
Fromhost: ${REMOTEHOST} 
CurrentDir: `pwd` 

Filename: ${FILE} 

File Permissions:
`ls -al ${FILE}`

------------------------
Diffs: (OLD < > NEW)
------------------------

`cat ${DIFLE}`

EOF
}

newfileinfo() {
cat << EOF

Hostname: ${HOST}
Username: ${USER}
Fromhost: ${REMOTEHOST}
CurrentDir: `pwd` 

Filename: ${FILE}

File Permissions:
`ls -al ${FILE}`

EOF
}

##############
# Start Main #
##############

if [ ${1+"$@"} ]; then

   DIFLE=${TMPD}/.diff.$$
   FILE=${1}

   if [ -f ${FILE} ]; then 

            TMPF=${TMPD}/`echo ${FILE} | sed 's/^\///;s/\//_/g'`.$$
            cp ${FILE} ${TMPF}
            ${CMD} ${1+"$@"}
            ${DIFFCMD} ${TMPF} ${FILE} > ${DIFLE}
      
              if [ -s ${DIFLE} ]; then
                 mailinfo | ${MAILPROG} -s "Changes were made to ${FILE} on ${HOST}" ${ADDR} 
              fi 
          cleanup
        exit 0 

    else 
         ${CMD} ${1+"$@"}

            if [ -s ${FILE} ]; then
              newfileinfo | ${MAILPROG} -s "NOTICE! File: ${FILE} was added on ${HOST}" ${ADDR} 
            fi 
        exit 0
    fi

else 
   ${CMD} 
   exit 0 
fi 


#################
#     END       #
#################