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Diffstat (limited to 'usr/share/updatezone/updatezone.sh')
| -rwxr-xr-x | usr/share/updatezone/updatezone.sh | 371 |
1 files changed, 0 insertions, 371 deletions
diff --git a/usr/share/updatezone/updatezone.sh b/usr/share/updatezone/updatezone.sh deleted file mode 100755 index d6d01c0..0000000 --- a/usr/share/updatezone/updatezone.sh +++ /dev/null @@ -1,371 +0,0 @@ -#!/bin/sh -# Filename: updatezone.sh -# Location: -# Author: bgstack15@gmail.com -# Startdate: 2017-05-26 07:02:47 -# Title: Script that Updates a DNS Zone -# Purpose: Provides a single command to update dns zones -# Package: updatezone -# History: -# Usage: -# Primarily intended for updating forward and reverse zones for bind9. -# Reference: ftemplate.sh 2017-05-24a; framework.sh 2017-05-24a -# Improve: -# Dependencies: -# rndc -# ssh with password-less authentication to slave servers -# each zone file has only a single zone -fiversion="2017-05-24a" -updatezoneversion="2017-05-27a" - -usage() { - less -F >&2 <<ENDUSAGE -usage: updatezone.sh [-duV] [ -c conffile | zone1 zone2 ... ] -version ${updatezoneversion} - -d debug Show debugging info, including parsed variables. - -u usage Show this usage block. - -V version Show script version number. - -c conffile Choose which conffile. Required if you do not name specific zones - zone1 Dns zone defined as UZ_ZONE_NAME in any .conf file in ${default_dir}/ -Return values: -0 Normal -1 Help or version info displayed -2 Count or type of flaglessvals is incorrect -3 Incorrect OS type -4 Unable to find dependency -5 Not run as root or sudo -6 Invalid configuration -7 Unable to modify zone files -ENDUSAGE -} - -# DEFINE FUNCTIONS - -check_zone_file() { - # call: check_zone_file forward "${zone_name}" "${forward_file}" "{temp_forward_file}" - debuglev 9 && ferror "check_zone_file $@" - local zone_type="$1" - local zone_name="$2" - local zone_real_file="$3" - local zone_temp_file="$4" - - # if this zone is defined - if test -n "${zone_real_file}"; - then - # if this zone file does not exist - if test ! -f "${zone_real_file}"; - then - ferror "${scriptfile}: 6. Cannot find file: ${zone_real_file}. Skipping ${zone_type} zone." - pause_to_show_error=1 - rm -f "${zone_temp_file}" - else - # so the zone file exists - - # make sure we can modify it - if ! touch "${zone_real_file}"; - then - ferror "${scriptfile}: 7. Unable to modify zone file ${zone_real_file}. Aborted." - exit 7 - fi - - # freeze zone so the file is up to date - zone_action freeze "${zone_name}" - echo "${zone_name}" >> "${zones_to_thaw_file}" - - # prepare temp file - cp -p "${zone_real_file}" "${zone_temp_file}" - fi - fi -} - -zone_action() { - # call: zone_action ${forwardzone} - debuglev 9 && ferror "zone_action $@" - local action="$1" - local zone="$2" - case "${action}" in - freeze|thaw) - rndc "${action}" "${zone}" 2>&1 | grep -viE "a zone reload and thaw|Check the logs to see" - ;; - *) - ferror "${scriptfile} minor error: ignoring unknown zone_action $@" - ;; - esac -} - -update_real_zone_if_updated() { - # call: update_real_zone_if_updated "${UZ_REVERSE_ZONE}" "${UZ_REVERSE_FILE}" "${temp_rev_file}" - debuglev 9 && ferror "update_real_zone_if_updated $@" - local zone_name="$1" - local zone_real_file="$2" - local zone_temp_file="$3" - if test -n "${zone_temp_file}" && test -f "${zone_temp_file}"; - then - if ! cmp -s "${zone_real_file}" "${zone_temp_file}"; - then - # a change occurred, so increment the serial number and replace the original zone file - increment_serial_in_zone_file "${zone_temp_file}" - cat "${zone_temp_file}" > "${zone_real_file}" - - # plan to notify the dns slaves - echo "${zone_name}" >> "${zones_to_update_file}" - fi - fi - - # If the temp file does not exist, it was deleted because the real file was invalid for whatever reason. -} - -increment_serial_in_zone_file() { - # call: increment_serial_in_zone_file "${zone_temp_file}" - # dependencies: a single zone in the zone file, with the ";serial" comment after the number. - debuglev 9 && ferror "increment_serial_in_zone_file $@" - local infile="$1" - currentnum="$( grep -iE "[0-9]+\s*;\s*serial" "${infile}" | grep -oIE "[0-9]+" )" - nextnum=$(( currentnum + 1 )) - sed -i -r -e "s/${currentnum}(\s*;\s*serial)/${nextnum}\1/" "${infile}" -} - -# DEFINE TRAPS - -clean_updatezone() { - rm -rf ${tempdir} > /dev/null 2>&1 - [ ] #use at end of entire script if you need to clean up tmpfiles -} - -CTRLC() { - #trap "CTRLC" 2 - [ ] #useful for controlling the ctrl+c keystroke - exit 0 -} - -CTRLZ() { - #trap "CTRLZ" 18 - [ ] #useful for controlling the ctrl+z keystroke -} - -parseFlag() { - flag="$1" - hasval=0 - case ${flag} in - # INSERT FLAGS HERE - "d" | "debug" | "DEBUG" | "dd" ) setdebug; ferror "debug level ${debug}";; - "u" | "usage" | "help" | "h" ) usage; exit 1;; - "V" | "fcheck" | "version" ) ferror "${scriptfile} version ${updatezoneversion}"; exit 1;; - #"i" | "infile" | "inputfile" ) getval;infile1=${tempval};; - "c" | "conf" | "config" | "conffile" ) getval;conffile=${tempval};; - esac - - debuglev 10 && { test ${hasval} -eq 1 && ferror "flag: ${flag} = ${tempval}" || ferror "flag: ${flag}"; } -} - -# DETERMINE LOCATION OF FRAMEWORK -while read flocation; do if test -x ${flocation} && test "$( ${flocation} --fcheck )" -ge 20170524; then frameworkscript="${flocation}"; break; fi; done <<EOFLOCATIONS -./framework.sh -${scriptdir}/framework.sh -~/bin/bgscripts/framework.sh -~/bin/framework.sh -~/bgscripts/framework.sh -~/framework.sh -/usr/local/bin/bgscripts/framework.sh -/usr/local/bin/framework.sh -/usr/bin/bgscripts/framework.sh -/usr/bin/framework.sh -/bin/bgscripts/framework.sh -/usr/share/bgscripts/framework.sh -EOFLOCATIONS -test -z "${frameworkscript}" && echo "$0: framework not found. Aborted." 1>&2 && exit 4 - -# INITIALIZE VARIABLES -# variables set in framework: -# today server thistty scriptdir scriptfile scripttrim -# is_cronjob stdin_piped stdout_piped stderr_piped sendsh sendopts -. ${frameworkscript} || echo "$0: framework did not run properly. Continuing..." 1>&2 -infile1= -outfile1= -logfile=${scriptdir}/${scripttrim}.${today}.out -define_if_new interestedparties "bgstack15@gmail.com" -# SIMPLECONF -#define_if_new default_conffile "/etc/updatezone/updatezone.conf" -#define_if_new defuser_conffile ~/.config/updatezone/updatezone.conf -define_if_new EDITOR vi -define_if_new default_dir "/etc/updatezone" - -# REACT TO OPERATING SYSTEM TYPE -case $( uname -s ) in - Linux) [ ];; - FreeBSD) [ ];; - *) echo "${scriptfile}: 3. Indeterminate OS: $( uname -s )" 1>&2 && exit 3;; -esac - -## REACT TO ROOT STATUS -#case ${is_root} in -# 1) # proper root -# [ ] ;; -# sudo) # sudo to root -# [ ] ;; -# "") # not root at all -# #ferror "${scriptfile}: 5. Please run as root or sudo. Aborted." -# #exit 5 -# [ ] -# ;; -#esac - -# VALIDATE PARAMETERS -# objects before the dash are options, which get filled with the optvals -# to debug flags, use option DEBUG. Variables set in framework: fallopts -validateparams - "$@" - -# CONFIRM TOTAL NUMBER OF FLAGLESSVALS IS CORRECT -#if test ${thiscount} -lt 1; -#then -# #ferror "${scriptfile}: 2. Fewer than 2 flaglessvals. Aborted." -# #exit 2 -#fi - -# CONFIGURE VARIABLES AFTER PARAMETERS - -## LOAD CONFIG FROM SIMPLECONF -## This section follows a simple hierarchy of precedence, with first being used: -## 1. parameters and flags -## 2. environment -## 3. config file -## 4. default user config: ~/.config/script/script.conf -## 5. default config: /etc/script/script.conf -#if test -f "${conffile}"; -#then -# get_conf "${conffile}" -#else -# #if test "${conffile}" = "${default_conffile}" || test "${conffile}" = "${defuser_conffile}"; then :; else -# ferror "${scriptfile}: Ignoring conf file which is not found: ${conffile}." -# #fi -#fi -#test -f "${defuser_conffile}" && get_conf "${defuser_conffile}" -#test -f "${default_conffile}" && get_conf "${default_conffile}" - -## REACT TO BEING A CRONJOB -#if test ${is_cronjob} -eq 1; -#then -# [ ] -#else -# [ ] -#fi - -# SET TRAPS -trap "CTRLC" 2 -#trap "CTRLZ" 18 -trap "clean_updatezone" 0 - -## DEBUG SIMPLECONF -#debuglev 5 && { -# ferror "Using values" -# # used values: EX_(OPT1|OPT2|VERBOSE) -# set | grep -iE "^UZ_" 1>&2 -#} - -# MAKE TEMP LOCATIONS -tempdir=/tmp/updatezone/ -if ! mkdir -p "${tempdir}"; -then - ferror "${scriptfile}: 4. Unable to make temp directory ${tempdir}. Aborted." - exit 4 -fi - -# MAIN LOOP -main() { - # call: main "${conffile}" - get_conf "$1" - # DEBUG SIMPLECONF - debuglev 5 && { - ferror "Using values" - # used values: EX_(OPT1|OPT2|VERBOSE) - set | grep -iE "^UZ_" 1>&2 - } - local temp_for_file="$( mktemp -p "${tempdir}" forward.XXXX 2>/dev/null )" - local temp_rev_file="$( mktemp -p "${tempdir}" reverse.XXXX 2>/dev/null )" - local zones_to_thaw_file="$( mktemp -p "${tempdir}" thaw.XXXX )" - local zones_to_update_file="$( mktemp -p "${tempdir}" update.XXXX )" - for word in "${temp_for_file}" "${temp_rev_file}"; - do - if test ! -f "${word}"; - then - ferror "${scriptfile}: 4. Unable to make temp file ${word}. Aborted." - exit 4 - fi - done - - local pause_to_show_error=0 - # Check forward zone file and freeze - check_zone_file forward "${UZ_FORWARD_ZONE}" "${UZ_FORWARD_FILE}" "${temp_for_file}" - - # Check reverse zone file and freeze - check_zone_file reverse "${UZ_REVERSE_ZONE}" "${UZ_REVERSE_FILE}" "${temp_rev_file}" - - # Slow down to show errors if any - fistruthy "${pause_to_show_error}" && sleep 1.3 - - # Allow user to edit files that exist - local these_temp_files="$( find "${temp_for_file}" "${temp_rev_file}" 2>/dev/null | xargs )" - test -n "${these_temp_files}" && $EDITOR ${these_temp_files} - - # Update the real zone if the temp file was updated - update_real_zone_if_updated "${UZ_FORWARD_ZONE}" "${UZ_FORWARD_FILE}" "${temp_for_file}" - update_real_zone_if_updated "${UZ_REVERSE_ZONE}" "${UZ_REVERSE_FILE}" "${temp_rev_file}" - # Thaw zones that need it - while read thiszone; - do - zone_action thaw "${thiszone}" - done < "${zones_to_thaw_file}" - - # Transfer zones that need it - # This section exists because my automatic zone transfers/updates do not work. - - # Build list of commands to run on each dns slave server - transfercommand="" - while read thiszone; - do - transfercommand="${transfercommand}rndc retransfer ${thiszone}; " - done < "${zones_to_update_file}" - - # Execute command on each slave server - if test -n "${transfercommand}"; - then - x=0 - while test ${x} -lt ${UZ_SLAVE_COUNT}; - do - x=$(( x + 1 )) - eval this_dns_slave=\"\${UZ_SLAVE_${x}}\" - debuglev 5 && ferror "ssh ${this_dns_slave} ${transfercommand}" - ssh ${this_dns_slave} ${transfercommand} - done - fi - -} #| tee -a ${logfile} - - -if test -n "${conffile}"; -then - ( main "${conffile}"; ) -else - # assume the $opt items are the zone names - y=0 - while test $y -lt $thiscount; - do - y=$(( y + 1 )) - eval "thiszonename=\${opt${y}}" - debuglev 1 && ferror "Will try to update zone ${thiszonename}" - file_for_this_zone="$( grep -liE "UZ_ZONE_NAME=${thiszonename}" "${default_dir}/"*.conf 2>/dev/null )" - if test -n "${file_for_this_zone}" && test -f "${file_for_this_zone}"; - then - ( main "${file_for_this_zone}"; ) - else - ferror "Skipping zone ${thiszonename} for which no file was found in ${default_dir}/" - fi - done -fi - -# EMAIL LOGFILE -#${sendsh} ${sendopts} "${server} ${scriptfile} out" ${logfile} ${interestedparties} - -## STOP THE READ CONFIG FILE -#exit 0 -#fi; done; } |