#!/bin/sh
##
## search TEXT file and change IP Addr
##
## san2(at)linuxchannel.net
## -- 2005.10.25: support only file
##    2005.08.29: support FreeBSD
##    2005.08.26: support muti directory
##    2003.03.25: new build

usage()
{
  echo 'search TEXT file and change IP Addr' >&2
  echo "usage : $0 [OPTIONS] diretory_path [...]" >&2
  echo 'OPTIONS' >&2
  echo '  -h, --help        : help, print this message and exit.' >&2
  echo "      --workdir=DIR : base work directory, default \`/home/system.ipch'" >&2
  echo "                      don't set \`/' physical path." >&2
  echo '  -s, --status      : view of status.' >&2
  echo '  -t, --pkg         : make tar.gz packaging.' >&2
  echo '  -f <file>         : only <file> change IP Addr' >&2
  exit 1
}

## only Linux
## but FreeBSD exists `realpath' command
##
_realpath()
{
  _PATH=$1
  _CWD=`pwd`

  if [ X"`echo ${_PATH} | grep ^/`" != "X" ] ;
  then
	_CWD=''
  else
	while [ X"`echo ${_PATH} | grep '^../'`" != "X" ] ;
	do
		_PATH=`echo "${_PATH}" | sed -e 's;^\.\./;;'`
		_CWD=`dirname ${_CWD}`
  	done
  fi

  _PATH=`echo "${_CWD}/${_PATH}" | sed -e 's;\./;/;g' -e 's;//;/;g' -e 's;/$;;'`
  _PATH=${_PATH:-/}

  echo -n ${_PATH}
}

## required: SRC sort to DESC(big to lower)
##
## [match.list]
## 192.168.0		192.168.10
## 192.168.0.		192.168.10.
## 192.168.0.0		192.168.10.0
## 192.168.0.1		192.168.10.1
## 192.168.0.128	192.168.10.128
## 192.168.0.255	192.168.10.255
## 192.168.0.XXX	192.168.10.YYY
##
## single quota for sed.
## sort -r match.list | uniq | sed \
##	-e 's;[[:space:]]\+\([^[:space:]]\+\)$;/\1/g;g' \
##	-e 's;^61\.78\.53\.;%s/61\\.78\\.53\\.;g' \
##	-e 's;^61\.78\.53;%s/61\\.78\\.53;g' \
##	-e 's;^;\t;g'
##
changeip()
{
  FILE=$1
  $VI	-e $FILE << ____EOP
	%s/211\.78\.53\.255/222.102.137.255/g
	%s/211\.78\.53\.153/222.102.137.42/g
	%s/211\.78\.53\.152/222.102.137.41/g
	%s/211\.78\.53\.151/222.102.137.69/g
	%s/211\.78\.53\.150/222.102.137.68/g
	%s/211\.78\.53\.128/222.102.137.128/g
	%s/211\.78\.53\.1/222.102.137.1/g
	%s/211\.78\.53\.0/222.102.137.0/g
	%s/211\.78\.53\./222.102.137./g
	%s/211\.78\.53/222.102.137/g
	w! $FILE
____EOP
}

OIFS=${IFS}
IFS='
'

i=1
NUMS=0
for ARGS in $* ;
do
  case "$ARGS" in
	-h|--help)
		usage
		;;
	--workdir=*)
		PREFIXDIR=`echo "${ARGS}" | awk -F"=" '{print $2}'`
		shift
		;;
	-s|--status)
		STATUS=TRUE
		shift
		;;
	-t|--pkg)
		DOPKG=TRUE
		shift
		;;
	-f)
		NEXT=`expr $i + 1`
		eval FILE="\${$NEXT}"
		break
		;;
	-*)
		shift
		;;
	*)
		if [ -d ${ARGS} ] ; then
			NUMS=`expr $NUMS + 1`
			DIRS=${DIRS}${IFS}${ARGS}
		else
			echo  "not found directory($ARGS)" >&2
		fi
		;;
  esac
  i=`expr $i + 1`
done

## check O/S
##
case "`uname -s 2>/dev/null`" in
  FreeBSD)
	OS=FreeBSD
	VI=/usr/local/bin/vim
	;;
  Linux)
	OS=Linux
	VI=/usr/bin/vim
	;;
  *)
	OS=Others
	VI=`which vim 2>/dev/null`
esac

##########################################
##
GREPNETWORK="211\.78\.53"			## don't set end dot(.)
PREFIXDIR=${PREFIXDIR:-/home/system.ipch}	## base directory
NEWSYSDIR="${PREFIXDIR}/sysip.new"		## new ip changed file directory
BACKUPDIR="${PREFIXDIR}/sysip.orig.backup"	## orignal file backup directory
##
##########################################

DATE=`date "+%Y%m%d-%H%M" 2>/dev/null`
SHSELF=`basename $0`

## check vim
##
[ ! -x "${VI}" ] &&
{
  echo "vim -- $VI not found !!!" >&2
  echo "set to VI=/path/to/vim in this shell script." >&2
  exit 1
}

## for only file
##
[ -n "${FILE}" ] &&
{
  [ ! -f "${FILE}" ] &&
  {
	echo "file not found: ${FILE}" >&2
	exit 1
  }

  [ X"${SHSELF}" = X"${FILE}" ] &&
  {
	echo "is self file: ${FILE}" >&2
	exit 1
  }

  TYPE=`file "${FILE}" 2>/dev/null | awk -F": " '{print $2}'`
  [ -n "${STATUS}" ] && echo "try to searching ... ${FILE}"

  ## it's text file
  ##
  if [ X"`echo ${TYPE} | grep -i text`" != "X" ] ;
  then
	SEARCHIP=`grep "${GREPNETWORK}" "${FILE}" 2>/dev/null`
	[ X"$SEARCHIP" != "X" ] &&
	{
		echo "Backup : ${FILE}.bak"
		cp -pf ${FILE} ${FILE}.bak

		echo "Parsing: changing to new IP ADDR ..."
		changeip ${FILE}
	}
  else
	echo "is not text file: ${FILE}" >&2
  fi

  exit 0
}

exit 0

## rewrite
##
PREFIXDIR=`_realpath ${PREFIXDIR}`

## check work directory
##
[ X"${PREFIXDIR}" = X"/" ] &&
{
  echo "Error: --workdir=${PREFIXDIR} don't set \`/' physical path." >&2
  usage
  exit 1
}

## check ARGS and is root
##
[ "$NUMS" -lt 1 ] && usage
[ `id -u` != 0 ] && { echo "requried by root privilege" >&2 ; exit 1; }

## old backup diretory
##
[ -d "${NEWSYSDIR}" ] && mv -f ${NEWSYSDIR} ${NEWSYSDIR}-old-${DATE}
[ -d "${BACKUPDIR}" ] && mv -f ${BACKUPDIR} ${BACKUPDIR}-old-${DATE}

## -size b(block,default), c(bytes), k(Kbytes,only Linux), w(2-bytes word,only Linux)
##
for DIR in $DIRS ;
do
  echo "finding .... $DIR"
  for F in `find ${DIR} -type f -a -size -1048576c -a ! -ipath "${PREFIXDIR}*"  -a ! -iname "$SHSELF" \
	-a ! -iname "*.log" -a ! -iname "*log*"   \
	-a ! -iname "*.jpg" -a ! -iname "*.jpeg" -a ! -iname "*.gif" -a ! -iname "*.bmp" \
	-a ! -iname "*.png" -a ! -iname "*.psd"  -a ! -iname "*.swf" -a ! -iname "*.pdf" \
	-a ! -iname "*.ps"  -a ! -iname "*.rtf"   \
	-a ! -iname "*.bin" -a ! -iname "*.exe"  -a ! -iname "*.rpm" \
	-a ! -iname "*.xls" -a ! -iname "*.ppt"  -a ! -iname "*.zip" \
	-a ! -iname "*.bz"  -a ! -iname "*.gz"   -a ! -iname "*.tar" -a ! -iname "*.tgz" \
	-a ! -iname "*.ogg" -a ! -iname "*.mp3"  -a ! -iname "*.ra"  -a ! -iname "*.rm"  \
	-a ! -iname "*.wav" -a ! -iname "*.mov"  -a ! -iname "*.avi" -a ! -iname "*.mpg" \
	-a ! -iname "*.db"  -a ! -iname "*.frm"  -a ! -iname "*.MYD" -a ! -iname "*.MYI" \
	-a ! -iname "*.h"   -a ! -iname "*.c"    -a ! -iname "*.o"   -a ! -iname "*.so"  \
	-a ! -iname "*.a"   -a ! -iname "*.la"   -a ! -iname "*.dso" -a ! -iname "*.dll" \
	-a ! -iname ".*history" -a ! -iname "trace*" -a ! -iname "known_hosts"           \
	-a ! -iname ".viminfo"` ;
  do
	TYPE=`file "$F" 2>/dev/null | awk -F": " '{print $2}'`
	[ -n "${STATUS}" ] && echo "try to searching ... ${F}"

	## it's text file
	##
	if [ X"`echo ${TYPE} | grep -i text`" != "X" ] ;
	then
		SEARCHIP=`grep "${GREPNETWORK}" "${F}" 2>/dev/null`
		[ X"$SEARCHIP" != "X" ] &&
		{
			#DDIR=`echo "${F}" | sed -e "s;^/\(.\+\)/[^/]\+$;\1;g"`
			DDIR=`dirname "${F}" | sed -e 's;^/;;'`
			FFILE=${F##*/}

			[ ! -d "${NEWSYSDIR}/${DDIR}" ] && mkdir -p "${NEWSYSDIR}/${DDIR}"
			[ ! -d "${BACKUPDIR}/${DDIR}" ] && mkdir -p "${BACKUPDIR}/${DDIR}" ## backup directory

			cp -pf "$F" "${NEWSYSDIR}/${DDIR}/"
			cp -pf "$F" "${BACKUPDIR}/${DDIR}/"

			echo "Backup : ${BACKUPDIR}/${DDIR}/${FFILE}"
			echo "Parsing: changing to new IP ADDR ..."
			changeip "${NEWSYSDIR}/${DDIR}/${FFILE}"
			MAKEPKG=TRUE
		}
	fi
  done
done

[ -n "${MAKEPKG}" ] &&
{
  echo ''
  echo 'Backup and Parsing done !!!'
  echo "see new system ipset files: ${NEWSYSDIR} drectory"
}

## make package
##
[ -n "${MAKEPKG}" -a -n "${DOPKG}" ] &&
{
  echo ''
  echo 'making packaging ...'
  sleep 1
  cd ${NEWSYSDIR} || exit 1
  tar zcvfp "${PREFIXDIR}/new.system.ipset-${DATE}.tar.gz" * || exit 1

  cat << __END > ${PREFIXDIR}/new.system.ipset.sh
#!/bin/sh
##
## auto packaging, san2@2005.08.27
## make: ${DATE}
##
[ \`id -u\` != 0 ] && { echo 'requried by root privilege' >&2 ; exit 1; }
[ ! -s ${PREFIXDIR}/new.system.ipset-${DATE}.tar.gz ] &&
{
  echo "file not found, ${PREFIXDIR}/new.system.ipset-${DATE}.tar.gz" >&2
  exit 1
}
tar zxvfp ${PREFIXDIR}/new.system.ipset-${DATE}.tar.gz -C /
exit 0
__END

  echo ''
  echo 'making packaging done !!!'
  echo "see ${PREFIXDIR}/new.system.ipset.sh"
}

exit 0