Move to templated version

1 files changed, 549 insertions, 0 deletions

diff --git a/src/backupninja.in b/src/backupninja.in
new file mode 100755
index 0000000..55a3d00
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+++ b/src/backupninja.in
@@ -0,0 +1,549 @@
+#!@BASH@
+#                          |\_
+# B A C K U P N I N J A   /()/
+#                         `\|
+#
+# Copyright (C) 2004-05 riseup.net -- property is theft.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+
+#####################################################
+## FUNCTIONS
+
+function setupcolors() {
+	BLUE="\033[34;01m"
+	GREEN="\033[32;01m"
+	YELLOW="\033[33;01m"
+	PURPLE="\033[35;01m"
+	RED="\033[31;01m"
+	OFF="\033[0m"
+	CYAN="\033[36;01m"
+	COLORS=($BLUE $GREEN $YELLOW $RED $PURPLE)
+}
+
+function colorize() {
+	if [ "$usecolors" == "yes" ]; then
+		local typestr=`echo "$@" | sed 's/\(^[^:]*\).*$/\1/'`
+		[ "$typestr" == "Debug" ] && type=0
+		[ "$typestr" == "Info" ] && type=1
+		[ "$typestr" == "Warning" ] && type=2
+		[ "$typestr" == "Error" ] && type=3
+		[ "$typestr" == "Fatal" ] && type=4
+		color=${COLORS[$type]}
+		endcolor=$OFF
+		echo -e "$color$@$endcolor"
+	else
+		echo -e "$@"
+	fi
+}
+
+# We have the following message levels:
+# 0 - debug - blue
+# 1 - normal messages - green
+# 2 - warnings - yellow
+# 3 - errors - orange
+# 4 - fatal - red
+# First variable passed is the error level, all others are printed
+
+# if 1, echo out all warnings, errors, or fatal
+# used to capture output from handlers
+echo_debug_msg=0
+
+usecolors=yes
+
+function printmsg() {
+	[ ${#@} -gt 1 ] || return
+
+	type=$1
+	shift
+	if [ $type == 100 ]; then
+		typestr=`echo "$@" | sed 's/\(^[^:]*\).*$/\1/'`
+		[ "$typestr" == "Debug" ] && type=0
+		[ "$typestr" == "Info" ] && type=1
+		[ "$typestr" == "Warning" ] && type=2
+		[ "$typestr" == "Error" ] && type=3
+		[ "$typestr" == "Fatal" ] && type=4
+		typestr=""
+	else
+		types=(Debug Info Warning Error Fatal)
+		typestr="${types[$type]}: "
+	fi
+	
+	print=$[4-type]
+	
+	if [ $echo_debug_msg == 1 ]; then
+		echo -e "$typestr$@" >&2
+	elif [ $debug ]; then
+		colorize "$typestr$@" >&2
+	fi
+	
+	if [ $print -lt $loglevel ]; then
+		logmsg "$typestr$@"
+	fi
+}
+
+function logmsg() {
+	if [ -w "$logfile" ]; then
+		echo -e `date "+%h %d %H:%M:%S"` "$@" >> $logfile
+	fi
+}
+
+function passthru() {
+	printmsg 100 "$@"
+}
+function debug() {
+	printmsg 0 "$@"
+}
+function info() {
+	printmsg 1 "$@"
+}
+function warning() {
+	printmsg 2 "$@"
+}
+function error() {
+	printmsg 3 "$@" 
+}
+function fatal() {
+	printmsg 4 "$@"
+	exit 2
+}
+
+msgcount=0
+function msg {
+	messages[$msgcount]=$1
+	let "msgcount += 1"
+}
+
+function setfile() {
+	CURRENT_CONF_FILE=$1
+}
+
+function setsection() {
+	CURRENT_SECTION=$1
+}
+
+
+#
+# create a temporary file in a secure way.
+#
+function maketemp() {
+	if [ -x /bin/mktemp ]
+	then
+		local tempfile=`mktemp /tmp/$1.XXXXXXXX`
+	else
+		DATE=`date`
+		sectmp=`echo $DATE | /usr/bin/md5sum | cut -d- -f1`
+		local tempfile=/tmp/$1.$sectmp
+	fi
+	echo $tempfile
+}
+
+
+#
+# sets a global var with name equal to $1
+# to the value of the configuration parameter $1
+# $2 is the default.
+# 
+
+function getconf() {
+	CURRENT_PARAM=$1
+	ret=`awk -f $scriptdir/parseini S=$CURRENT_SECTION P=$CURRENT_PARAM $CURRENT_CONF_FILE`
+	# if nothing is returned, set the default
+	if [ "$ret" == "" -a "$2" != "" ]; then
+		ret="$2"
+	fi
+
+	# replace * with %, so that it is not globbed.
+	ret="${ret//\\*/__star__}"
+
+	# this is weird, but single quotes are needed to 
+	# allow for returned values with spaces. $ret is still expanded
+	# because it is in an 'eval' statement.
+	eval $1='$ret'
+}
+
+#
+# enforces very strict permissions on configuration file $file.
+#
+
+function check_perms() {
+	local file=$1
+	local perms=`ls -ld $file`
+	perms=${perms:4:6}
+	if [ "$perms" != "------" ]; then
+		echo "Configuration files must not be group or world writable/readable! Dying on file $file"
+		fatal "Configuration files must not be group or world writable/readable! Dying on file $file"
+	fi
+	if [ `ls -ld $file | awk '{print $3}'` != "root" ]; then
+		echo "Configuration files must be owned by root! Dying on file $file"
+		fatal "Configuration files must be owned by root! Dying on file $file"
+	fi
+}
+
+# simple lowercase function
+function tolower() {
+	echo "$1" | tr [:upper:] [:lower:]
+}
+
+# simple to integer function
+function toint() {
+	echo "$1" | tr [:alpha:] -d 
+}
+
+#
+# function isnow(): returns 1 if the time/day passed as $1 matches
+# the current time/day.
+#
+# format is <day> at <time>:
+#   sunday at 16
+#   8th at 01
+#   everyday at 22
+#
+
+# we grab the current time once, since processing
+# all the configs might take more than an hour.
+nowtime=`date +%H`
+nowday=`date +%d`
+nowdayofweek=`date +%A`
+nowdayofweek=`tolower "$nowdayofweek"`
+
+function isnow() {
+	local when="$1"
+	set -- $when
+	whendayofweek=$1; at=$2; whentime=$3;
+	whenday=`toint "$whendayofweek"`
+	whendayofweek=`tolower "$whendayofweek"`
+	whentime=`echo "$whentime" | sed 's/:[0-9][0-9]$//' | sed -r 's/^([0-9])$/0\1/'`
+
+	if [ "$whendayofweek" == "everyday" -o "$whendayofweek" == "daily" ]; then
+		whendayofweek=$nowdayofweek
+	fi
+
+	if [ "$whenday" == "" ]; then
+		if [ "$whendayofweek" != "$nowdayofweek" ]; then
+			whendayofweek=${whendayofweek%s}
+			if [ "$whendayofweek" != "$nowdayofweek" ]; then
+				return 0
+			fi
+		fi
+	elif [ "$whenday" != "$nowday" ]; then
+		return 0
+	fi
+
+	[ "$at" == "at" ] || return 0
+	[ "$whentime" == "$nowtime" ] || return 0
+
+	return 1
+}
+
+function usage() {
+	cat << EOF
+$0 usage:
+This script allows you to coordinate system backup by dropping a few
+simple configuration files into @CFGDIR@/backup.d/. Typically, this
+script is run hourly from cron.
+
+The following options are available:
+-h, --help           This usage message
+-d, --debug          Run in debug mode, where all log messages are
+                     output to the current shell.
+-f, --conffile FILE  Use FILE for the main configuration instead
+                     of @CFGDIR@/backupninja.conf
+-t, --test           Test run mode. This will test if the backup
+                     could run, without actually preforming any
+                     backups. For example, it will attempt to authenticate
+                     or test that ssh keys are set correctly.
+-n, --now            Perform actions now, instead of when they might
+                     be scheduled. No output will be created unless also
+                     run with -d.
+    --run FILE       Execute the specified action file and then exit.    
+                     Also puts backupninja in debug mode.
+                     
+When in debug mode, output to the console will be colored:
+EOF
+	debug=1
+	debug   "Debugging info (when run with -d)"
+	info    "Informational messages (verbosity level 4)"
+	warning "Warnings (verbosity level 3 and up)"
+	error   "Errors (verbosity level 2 and up)"
+	fatal   "Fatal, halting errors (always shown)"
+}
+
+##
+## this function handles the running of a backup action
+##
+## these globals are modified:
+## fatals, errors, warnings, actions_run, errormsg
+##
+
+function process_action() {
+	local file="$1"
+	local suffix="$2"
+	local run="no"
+	setfile $file
+
+	# skip over this config if "when" option
+	# is not set to the current time.
+	getconf when "$defaultwhen"
+	if [ "$processnow" == 1 ]; then
+		info ">>>> starting action $file (because of --now)"
+		run="yes"
+	elif [ "$when" == "hourly" ]; then
+		info ">>>> starting action $file (because 'when = hourly')"
+		run="yes"
+	else
+		IFS=$'\t\n'
+		for w in $when; do
+			IFS=$' \t\n'
+			isnow "$w"
+			ret=$?
+			IFS=$'\t\n'
+			if [ $ret == 0 ]; then
+				debug "skipping $file because it is not $w"
+			else
+				info ">>>> starting action $file (because it is $w)"
+				run="yes"
+			fi
+		done
+		IFS=$' \t\n'
+	fi
+	debug $run
+	[ "$run" == "no" ] && return
+	
+	let "actions_run += 1"
+
+	# call the handler:
+	local bufferfile=`maketemp backupninja.buffer`
+	echo "" > $bufferfile
+	echo_debug_msg=1
+	(
+		. $scriptdir/$suffix $file
+	) 2>&1 | (
+		while read a; do
+			echo $a >> $bufferfile
+			[ $debug ] && colorize "$a"
+		done
+	)
+	retcode=$?
+	# ^^^^^^^^ we have a problem! we can't grab the return code "$?". grrr.
+	echo_debug_msg=0
+
+	_warnings=`cat $bufferfile | grep "^Warning: " | wc -l`
+	_errors=`cat $bufferfile | grep "^Error: " | wc -l`
+	_fatals=`cat $bufferfile | grep "^Fatal: " | wc -l`
+	
+	ret=`grep "\(^Warning: \|^Error: \|^Fatal: \)" $bufferfile`
+	rm $bufferfile
+	if [ $_fatals != 0 ]; then
+		msg "*failed* -- $file"
+		errormsg="$errormsg\n== fatal errors from $file ==\n\n$ret\n"
+		passthru "Fatal: <<<< finished action $file: FAILED"
+	elif [ $_errors != 0 ]; then
+		msg "*error* -- $file"
+		errormsg="$errormsg\n== errors from $file ==\n\n$ret\n"
+		error "<<<< finished action $file: ERROR"
+	elif [ $_warnings != 0 ]; then
+		msg "*warning* -- $file"
+		errormsg="$errormsg\n== warnings from $file ==\n\n$ret\n"
+		warning "<<<< finished action $file: WARNING"
+	else
+		msg "success -- $file"
+		info "<<<< finished action $file: SUCCESS"
+	fi
+
+	let "fatals += _fatals"
+	let "errors += _errors"
+	let "warnings += _warnings"	
+}
+
+#####################################################
+## MAIN
+
+setupcolors
+conffile="@CFGDIR@/backupninja.conf"
+loglevel=3
+
+## process command line options
+
+while [ $# -ge 1 ]; do
+	case $1 in
+		-h|--help) usage;;
+		-d|--debug) debug=1;;
+		-t|--test) test=1;debug=1;;
+		-n|--now) processnow=1;;
+		-f|--conffile)
+			if [ -f $2 ]; then
+				conffile=$2
+			else
+				echo "-f|--conffile option must be followed by an existing filename"
+				fatal "-f|--conffile option must be followed by an existing filename"
+				usage
+			fi
+			# we shift here to avoid processing the file path 
+			shift
+			;;
+		--run)
+			debug=1
+			if [ -f $2 ]; then
+				singlerun=$2
+				processnow=1
+			else
+				echo "--run option must be fallowed by a backupninja action file"
+				fatal "--run option must be fallowed by a backupninja action file"
+				usage
+			fi
+			shift
+			;;
+		*)
+			debug=1
+			echo "Unknown option $1"
+			fatal "Unknown option $1"
+			usage
+			exit
+			;;
+	esac
+	shift
+done																										
+
+#if [ $debug ]; then
+#	usercolors=yes
+#fi
+
+## Load and confirm basic configuration values
+
+# bootstrap
+if [ ! -r "$conffile" ]; then
+	echo "Configuration file $conffile not found." 
+	fatal "Configuration file $conffile not found."
+fi
+
+scriptdir=`grep scriptdirectory $conffile | awk '{print $3}'`
+if [ ! -n "$scriptdir" ]; then
+	echo "Cound not find entry 'scriptdirectory' in $conffile" 
+	fatal "Cound not find entry 'scriptdirectory' in $conffile"
+fi
+
+if [ ! -d "$scriptdir" ]; then
+	echo "Script directory $scriptdir not found." 
+	fatal "Script directory $scriptdir not found."
+fi
+
+setfile $conffile
+
+# get global config options (second param is the default)
+getconf configdirectory @CFGDIR@/backup.d
+getconf reportemail
+getconf reportsuccess yes
+getconf reportwarning yes
+getconf loglevel 3
+getconf when "Everyday at 01:00"
+defaultwhen=$when
+getconf logfile @localstatedir@/log/backupninja.log
+getconf usecolors "yes"
+getconf SLAPCAT /usr/sbin/slapcat
+getconf LDAPSEARCH /usr/bin/ldapsearch
+getconf RDIFFBACKUP /usr/bin/rdiff-backup
+getconf MYSQL /usr/bin/mysql
+getconf MYSQLHOTCOPY /usr/bin/mysqlhotcopy
+getconf MYSQLDUMP /usr/bin/mysqldump
+getconf PGSQLDUMP /usr/bin/pg_dump
+getconf PGSQLDUMPALL /usr/bin/pg_dumpall
+getconf GZIP /bin/gzip
+getconf RSYNC /usr/bin/rsync
+getconf vservers no
+getconf VSERVERINFO /usr/sbin/vserver-info
+getconf VSERVER /usr/sbin/vserver
+getconf VROOTDIR `if [ -f "$VSERVERINFO" ]; then $VSERVERINFO info SYSINFO |grep vserver-Rootdir | awk '{print $2}'; fi`
+
+if [ ! -d "$configdirectory" ]; then
+	echo "Configuration directory '$configdirectory' not found."
+	fatal "Configuration directory '$configdirectory' not found."
+fi
+
+[ -f "$logfile" ] || touch $logfile
+
+if [ "$UID" != "0" ]; then
+	echo "$0 can only be run as root"
+	exit 1
+fi
+
+if [ "$vservers" == "yes" -a ! -d "$VROOTDIR" ]; then
+	echo "vservers option set in config, but $VROOTDIR is not a directory!"
+	fatal "vservers option set in config, but $VROOTDIR is not a directory!"
+fi
+
+## Process each configuration file
+
+# by default, don't make files which are world or group readable.
+umask 077
+
+# these globals are set by process_action()
+fatals=0
+errors=0
+warnings=0
+actions_run=0
+errormsg=""
+
+if [ "$singlerun" ]; then
+	files=$singlerun
+else
+	files=`find $configdirectory -mindepth 1 ! -name '.*.swp' | sort -n`
+fi
+
+for file in $files; do
+	[ -f "$file" ] || continue
+
+	check_perms $file
+	suffix="${file##*.}"
+	base=`basename $file`
+	if [ "${base:0:1}" == "0" -o "$suffix" == "disabled" ]; then
+		info "Skipping $file"
+		continue
+	fi
+
+	if [ -e "$scriptdir/$suffix" ]; then
+		process_action $file $suffix
+	else
+		error "Can't process file '$file': no handler script for suffix '$suffix'"
+		msg "*missing handler* -- $file"
+	fi
+done
+
+## mail the messages to the report address
+
+if [ $actions_run == 0 ]; then doit=0
+elif [ "$reportemail" == "" ]; then doit=0
+elif [ $fatals != 0 ]; then doit=1
+elif [ $errors != 0 ]; then doit=1
+elif [ "$reportsuccess" == "yes" ]; then doit=1
+elif [ "$reportwarning" == "yes" -a $warnings != 0 ]; then doit=1
+else doit=0
+fi
+
+if [ $doit == 1 ]; then
+	debug "send report to $reportemail"
+	hostname=`hostname`
+	[ $warnings == 0 ] || subject="WARNING"
+	[ $errors == 0 ] || subject="ERROR"
+	[ $fatals == 0 ] || subject="FAILED"
+	
+	{
+		for ((i=0; i < ${#messages[@]} ; i++)); do
+	 		echo ${messages[$i]}
+		done
+		echo -e "$errormsg"
+	} | mail $reportemail -s "backupninja: $hostname $subject"
+fi
+
+if [ $actions_run != 0 ]; then
+	info "FINISHED: $actions_run actions run. $fatals fatal. $errors error. $warnings warning."
+fi