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2124a5bbff
bind/bind_change_SOA.sh
root 2124a5bbff - Add configuration directory for scripts. 
- Add sample configuratin file 'bind.conf.sample'.
- Redisign script 'bind_change_SOA.sh'.
- Add script 'bind_remove_domain.sh'.
2017-08-01 01:29:48 +02:00

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#!/usr/bin/env bash
working_dir="$(dirname $(realpath $0))"
conf_file="${working_dir}/conf/bind.conf"
log_file="$(mktemp)"
backup_date="$(date +%Y-%m-%d-%H%M)"
#---------------------------------------
#-----------------------------
# Base Function(s)
#-----------------------------
#---------------------------------------
usage() {
echo
[ -n "$1" ] && echo -e "Error: $1\n"
cat<<EOF
Usage: $(basename $0) [Options]
Script changes nameserver and admin e-mail entry in SOA Records of all
master zonefiles .
If running in a terminal and NOT '-q' is used, script acts in
interactive mode. Script uses defaults either reading from file
${conf_file}, or if not present, bei hardcoded default settings.
You will be asked to confirm or override the default setting.
If not running in a terminal (i.e. used as cronjob) or flag '-q' (and
within '-d') is set, all configurations are read from file '${conf_file}'.
Options:
-h
Prints this help.
-q
Rund in silent mode.
EOF
clean_up 1
}
clean_up() {
# Perform program exit housekeeping
rm $log_file
exit $1
}
echononl(){
if $terminal && $LOGGING ; then
echo X\\c > /tmp/shprompt$$
if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
echo -e -n "$*\\c" 1>&2
else
echo -e -n "$*" 1>&2
fi
rm /tmp/shprompt$$
fi
}
fatal(){
echo ""
if $terminal ; then
echo -e "[ \033[31m\033[1mError\033[m ]: $*"
echo ""
echo -e "\t\033[31m\033[1mScript was interupted\033[m!"
else
echo " [ Fatal ]: $*"
echo ""
echo " Script was terminated...."
fi
echo ""
clean_up 1
}
info (){
if $terminal && $LOGGING ; then
echo ""
echo -e "\t[ \033[32m\033[1mInfo\033[m ]: $*"
echo ""
else
if $LOGGING ; then
echo ""
echo "Info: $*"
echo ""
fi
fi
}
warn (){
echo ""
if $terminal ; then
echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
else
echo "Warning: $*"
fi
echo ""
}
error (){
echo ""
if $terminal ; then
echo -e "\t[ \033[31m\033[1mError\033[m ]: $*"
else
echo "Error: $*"
fi
echo ""
}
echo_done() {
if $terminal && $LOGGING ; then
echo -e "\033[75G[ \033[32mdone\033[m ]"
else
if $LOGGING ; then
echo " [ done ]"
fi
fi
}
echo_ok() {
if $terminal && $LOGGING ; then
echo -e "\033[75G[ \033[32mok\033[m ]"
else
if $LOGGING ; then
echo " [ ok ]"
fi
fi
}
echo_failed(){
if $terminal && $LOGGING ; then
echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
else
if $LOGGING ; then
echo " [ failed ]"
fi
fi
}
echo_skipped() {
if $terminal && $LOGGING ; then
echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
else
if $LOGGING ; then
echo " [ skipped ]"
fi
fi
}
trap clean_up SIGHUP SIGINT SIGTERM
#---------------------------------------
#-----------------------------
# Check some prerequisites
#-----------------------------
#---------------------------------------
if [[ -t 1 ]] ; then
terminal=true
LOGGING=true
else
terminal=false
LOGGING=false
fi
while getopts hq opt ; do
case $opt in
q) LOGGING=false
;;
h) usage
;;
*) usage
esac
done
#---------------------------------------
#-----------------------------
# Setting Defaults
#-----------------------------
#---------------------------------------
DEFAULT_CONF_FILE_DIR="/etc/bind"
#---------------------------------------
#-----------------------------
# Load default values from bind.conf
#
# Overwrites the settings above
#
#-----------------------------
#---------------------------------------
if $LOGGING ; then
clear
echo ""
echo ""
echononl " Loading default Configuration values from $(basename ${conf_file}).."
if [[ ! -f "$conf_file" ]]; then
echo_skipped
else
source "${conf_file}" > $log_file 2>&1
if [[ $? -eq 0 ]]; then
echo_ok
else
echo_failed
fatal "$(cat $log_file)"
fi
fi
echo ""
[[ -n "$CONF_FILE_DIR" ]] && DEFAULT_CONF_FILE_DIR="$CONF_FILE_DIR"
if [[ -n "$ZONE_FILE_MASTER_DIR" ]] ; then
DEFAULT_ZONE_FILE_MASTER_DIR="$ZONE_FILE_MASTER_DIR"
else
DEFAULT_ZONE_FILE_MASTER_DIR="${DEFAULT_CONF_FILE_DIR}/master"
fi
if [[ -n "$ZONE_FILE_SLAVE_DIR" ]] ; then
DEFAULT_ZONE_FILE_SLAVE_DIR="$ZONE_FILE_SLAVE_DIR"
else
DEFAULT_ZONE_FILE_SLAVE_DIR="${DEFAULT_CONF_FILE_DIR}/slave"
fi
[[ -n "$ZONES_DECLARATION_FILE" ]] && DEFAULT_ZONES_DECLARATION_FILE="$ZONES_DECLARATION_FILE"
[[ -n "$SOA_PRIMARY_MASTER" ]] && DEFAULT_SOA_PRIMARY_MASTER=$SOA_PRIMARY_MASTER
[[ -n "$SOA_ADMIN_EMAIL" ]] && DEFAULT_SOA_ADMIN_EMAIL=$SOA_ADMIN_EMAIL
echo ""
echo -e "\033[32m--\033[m"
echo ""
echo "Insert SOA primary master for all the zones."
echo ""
SOA_PRIMARY_MASTER=""
if [[ -n "$DEFAULT_SOA_PRIMARY_MASTER" ]]; then
echononl "Primary Master (SOA-Record) [${DEFAULT_SOA_PRIMARY_MASTER}]"
read SOA_PRIMARY_MASTER
if [[ "X${SOA_PRIMARY_MASTER}" = "X" ]]; then
SOA_PRIMARY_MASTER="$DEFAULT_SOA_PRIMARY_MASTER"
fi
else
echononl "Primary Master (SOA-Record): "
read SOA_PRIMARY_MASTER
while [ "X$SOA_PRIMARY_MASTER" = "X" ] ; do
echo -e "\n\t\033[33m\033[1mSetting 'Primary Master' is required!\033[m\n"
echononl "Primary Master (SOA-Record): "
read SOA_PRIMARY_MASTER
done
fi
echo ""
echo -e "\033[32m--\033[m"
echo ""
echo "Insert SOA admin e-mail address for all the zones."
echo ""
SOA_ADMIN_EMAIL=""
if [[ -n "$DEFAULT_SOA_ADMIN_EMAIL" ]]; then
echononl "Admin E-Mail Address (SOA-Record) [${DEFAULT_SOA_ADMIN_EMAIL}]"
read SOA_ADMIN_EMAIL
if [[ "X${SOA_ADMIN_EMAIL}" = "X" ]]; then
SOA_ADMIN_EMAIL="$DEFAULT_SOA_ADMIN_EMAIL"
fi
else
echononl "Admin E-Mail Address (SOA-Record): "
read SOA_ADMIN_EMAIL
while [ "X$SOA_ADMIN_EMAIL" = "X" ] ; do
echo -e "\n\t\033[33m\033[1mSetting 'Admin E-Mail Address' is required!\033[m\n"
echononl "Admin E-Mail Address (SOA-Record): "
read SOA_ADMIN_EMAIL
done
fi
echo ""
echo ""
echo -e "\033[32m--\033[m"
echo "Common parameters"
echo -e "\033[32m--\033[m"
echo ""
echo "Insert directory containing the bind configuration files."
echo ""
CONF_FILE_DIR=""
if [[ -n "$DEFAULT_CONF_FILE_DIR" ]] ; then
echononl "Bind Configuration Directory [${DEFAULT_CONF_FILE_DIR}]: "
read CONF_FILE_DIR
if [[ "X$CONF_FILE_DIR" = "X" ]]; then
CONF_FILE_DIR="$DEFAULT_CONF_FILE_DIR"
fi
else
echononl "Bind Configuration Directory: "
read CONF_FILE_DIR
while [ "X$CONF_FILE_DIR" = "X" ] ; do
echo -e "\n\t\033[33m\033[1mSetting 'Bind Configuration Directory' is required!\033[m\n"
echononl "Bind Configuration Directory: "
read CONF_FILE_DIR
done
fi
[[ -n "$ZONES_DECLARATION_FILE" ]] || DEFAULT_ZONES_DECLARATION_FILE="${CONF_FILE_DIR}/named.conf.local"
[[ -n "$ZONE_FILE_MASTER_DIR" ]] || ZONE_FILE_MASTER_DIR="${CONF_FILE_DIR}/master"
echo ""
echo -e "\033[32m--\033[m"
echo ""
echo "Insert zones declaration file."
echo ""
ZONES_DECLARATION_FILE=""
if [[ -n "$DEFAULT_ZONES_DECLARATION_FILE" ]] ; then
echononl "Zones Declaration File [${DEFAULT_ZONES_DECLARATION_FILE}]: "
read ZONES_DECLARATION_FILE
if [[ "X$ZONES_DECLARATION_FILE" = "X" ]]; then
ZONES_DECLARATION_FILE="$DEFAULT_ZONES_DECLARATION_FILE"
fi
else
echononl "Zones Declaration File: "
read ZONES_DECLARATION_FILE
while [ "X$ZONES_DECLARATION_FILE" = "X" ] ; do
echo -e "\n\t\033[33m\033[1mSetting 'Zones Declaration File' is required!\033[m\n"
echononl "Zones Declaration File: "
read ZONES_DECLARATION_FILE
done
fi
# - replace '@' character with '.'
# -
SOA_ADMIN_EMAIL="${SOA_ADMIN_EMAIL/@/.}"
echo ""
echo ""
echo -e "\033[1;32mSettings for \033[1;37mChange SOA Record\033[m Script"
echo ""
echo -e "\tSOA Primary Master..................: $SOA_PRIMARY_MASTER"
echo -e "\tSOA Admin E-Mail Address............: $SOA_ADMIN_EMAIL"
echo ""
echo -e "\tBind Configuration Directory........: $CONF_FILE_DIR"
echo -e "\tZones Declaration File..............: $ZONES_DECLARATION_FILE"
echo ""
info "Repace Primary Master \033[37m\033[1m${SOA_PRIMARY_MASTER}\033[m and Admin E-Mail \033[37m\033[1m${SOA_PRIMARY_MASTER}\033[m in all SOA Records"
echo -n "To continue type uppercase 'YES': "
read OK
echo ""
if [[ "$OK" != "YES" ]] ; then
fatal "Abort by user request - Answer as not 'YES'"
fi
else # if $LOGGING
if [[ ! -f "$conf_file" ]]; then
fatal "Configuration file '$conf_file' not found!"
else
echononl " Loading default Configuration values from $(basename ${conf_file}).."
source "${conf_file}" > $log_file 2>&1
if [[ $? -eq 0 ]]; then
echo_ok
else
echo_failed
fatal "$(cat $log_file)"
fi
fi
if [[ -z "$CONF_FILE_DIR" ]]; then
CONF_FILE_DIR="$DEFAULT_CONF_FILE_DIR"
fi
if [[ ! -d "$CONF_FILE_DIR" ]] ; then
fatal "Directory contaning bind configurations not found (see CONF_FILE_DIR)!"
fi
[[ -n "${ZONE_FILE_MASTER_DIR}" ]] || ZONE_FILE_MASTER_DIR="${CONF_FILE_DIR}/master"
if [[ -z "$ZONES_DECLARATION_FILE" ]] ; then
ZONES_DECLARATION_FILE="${CONF_FILE_DIR}/named.conf.local"
fi
[[ -z "$SOA_ADMIN_EMAIL" ]] && fatal "Missing SOA Admin E-Mail Address (see SOA_ADMIN_EMAIL)"
[[ -z "$SOA_PRIMARY_MASTER" ]] && fatal "Missing SOA Primary Master (see SOA_PRIMARY_MASTER)"
# - replace '@' character with '.'
# -
SOA_ADMIN_EMAIL="${SOA_ADMIN_EMAIL/@/.}"
fi
if [[ ! -f "$ZONES_DECLARATION_FILE" ]]; then
fatal "Zone declaration file '${ZONES_DECLARATION_FILE}' not found!"
fi
declare -a zone_file_arr=()
_found=false
_is_master=false
zone_file=""
regex_master="type[[:space:]]+master"
regex_file="^[[:space:]]*file"
while IFS='' read -r _line || [[ -n $_line ]] ; do
if [[ $_line =~ ^[[:space:]]*zone[[:space:]]+ ]]; then
_found=true
zone="$(echo $_line | awk '{print$2}')"
shopt -s extglob
if [[ $zone =~ \; ]]; then
zone=${zone%%*(\;)}
fi
if [[ $zone =~ ^\" ]]; then
zone=${zone##*(\")}
zone=${zone%%*(\")}
fi
shopt -u extglob
fi
if $_found ; then
if [[ $_line =~ $regex_file ]]; then
zone_file=$(echo $_line | awk '{print$2}')
shopt -s extglob
if [[ $zone_file =~ \; ]]; then
zone_file=${zone_file%%*(\;)}
fi
if [[ $zone_file =~ ^\" ]]; then
zone_file=${zone_file##*(\")}
zone_file=${zone_file%%*(\")}
fi
shopt -u extglob
fi
if [[ $_line =~ $regex_master ]]; then
_is_master=true
fi
if [[ "$_line" =~ ^[[:space:]]*\}[[:space:]]*\; ]]; then
if $_is_master && [[ -n "$zone_file" ]]; then
zone_file_arr+=("${zone_file}:$zone")
fi
_is_master=false
_found=false
zone_file=""
fi
fi
done < "$ZONES_DECLARATION_FILE"
echononl "\tBackup directory '${ZONE_FILE_MASTER_DIR}'.."
cp -a "${ZONE_FILE_MASTER_DIR}" "${ZONE_FILE_MASTER_DIR}.${backup_date}" > $log_file 2>&1
if [[ $? -eq 0 ]]; then
echo_ok
else
echo_failed
fatal "$(cat $log_file)"
fi
for _val in "${zone_file_arr[@]}" ; do
IFS=':' read -a _val_arr <<< "${_val}"
declare -i _serial_new=`date +%Y%m%d01`
zone_file="${_val_arr[0]}"
zone="${_val_arr[1]}"
if $LOGGING ; then
echo ""
echo -e "\tPreparing zone file \033[37m\033[1m${zone_file}\033[m"
fi
## - calculate new serial
## -
echononl "\tCalculate new serial.."
declare -i __serial=$(grep -E "^\s*[0-9]{10}\s+;?(serial)?" $zone_file | awk '{print$1}')
if [[ -z "$__serial" ]]; then
echo_failed
continue
fi
while [[ ! $_serial_new -gt $__serial ]]; do
let _serial_new++
done
if [[ $? -gt 0 ]]; then
echo_failed
else
echo_ok
fi
echononl "\tChanging SOA Record.."
if ! $(grep -q -E "^.*IN\s+SOA\s+${SOA_PRIMARY_MASTER}\.\s+${SOA_ADMIN_EMAIL}\.\s+\(" $zone_file) ; then
perl -i -n -p -e "s/^(.*IN\s+SOA).*$/\1 ${SOA_PRIMARY_MASTER}. ${SOA_ADMIN_EMAIL}. \(/" $zone_file
if [[ $? -gt 0 ]]; then
echo_failed
else
echo_ok
fi
else
echo_skipped
continue
fi
## - Set new serial
## -
echononl "\tRenew serial.."
perl -i -n -p -e "s#^(\s*) $__serial(.*)#\1 $_serial_new\2#" $zone_file
if [[ $? -gt 0 ]]; then
echo_failed
else
echo_ok
fi
## - Reload Zone
## -
echononl "\tReload Zone ${zone}.."
/usr/sbin/rndc reload $zone > /dev/null 2>&1
if [[ $? -gt 0 ]]; then
echo_failed
else
echo_ok
fi
sleep 1
done
if [[ -d "${ZONE_FILE_MASTER_DIR}.${backup_date}" ]] ; then
diff -Nur "${ZONE_FILE_MASTER_DIR}" "${ZONE_FILE_MASTER_DIR}.${backup_date}" > /dev/null 2>&1
if [[ $? -eq 0 ]]; then
info "No zone file has changed.\n\t Removing previously created backup"
echononl "\tDelete '${ZONE_FILE_MASTER_DIR}.${backup_date}'.."
rm -rf "${ZONE_FILE_MASTER_DIR}.${backup_date}" > $log_file 2>&1
if [[ $? -eq 0 ]]; then
echo_ok
else
echo_failed
fi
fi
fi
$LOGGING && echo ""
clean_up 0
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