From c0190bf5a924f8aeaec18064c67c8ab73f3e0a1d Mon Sep 17 00:00:00 2001
From: root <empty>
Date: Wed, 25 Jul 2007 16:47:44 +0000
Subject: [PATCH] Initial revision

---
 backup-nonpriv.sh | 227 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 227 insertions(+)
 create mode 100755 backup-nonpriv.sh

diff --git a/backup-nonpriv.sh b/backup-nonpriv.sh
new file mode 100755
index 0000000..d2bb8f3
--- /dev/null
+++ b/backup-nonpriv.sh
@@ -0,0 +1,227 @@
+#!/bin/sh
+
+# Modifisert utgave av backup.sh som tar backup også på maskiner der kolje ikke har root.
+
+#dirs
+confdir=/home/backup/conf/           #configuration files
+storagedir=/backup                   #mountpoint of huge disc
+###
+
+#exclude-pattern
+exclude=$confdir/exclude
+[ ! -f $exclude ] && printf "tmp\ncore\n" > $exclude
+###
+
+#syntax of remotestat:
+#hostname:/directory/
+remotestatf=$confdir/remotestat
+[ -f $remotestatf ] && remotestat=`cat $remotestatf`
+###
+
+PATH=/local/bin:$PATH:/store/bin
+export PATH
+
+#start the logfile
+date
+echo
+echo "Exclude pattern:"
+cat $exclude
+echo
+echo
+
+umask 027
+
+# The computers we want to back up
+unixcomputers=`cat $confdir/computers.unix.nonpriv | grep -v ^# | grep -v ^$`
+###
+
+#disse bør kunne varieres fra fs til fs?
+maksantallfulle=3          #hvor mange fulle vi tar vare på (kan overstyres med conf)
+dagermellomfulle=30        #antall dager før det er på tide med ny full
+logw=40
+###
+
+#lager datovariabeler
+DATE=`date "+%Y%m%d%H%M"`            #format: touch
+DATEs=`date "+%Y-%m-%d %H:%M"`       #format: tar
+###
+
+#selve backupen
+# krever at noen variabler er satt
+# krever at vi er i rett katalog
+backup()
+{
+
+ printf "%-${logw}s %s\n" "$computer:$filesystem" "$backuplevel backup"
+
+ if [ "$backuplevel" = "daglig" ] || [ "$backuplevel" = "incremental" ]
+ then
+  lastd=`cat ../.date`
+  lastcmd="\"$lastd\""
+ else
+  lastcmd=""
+ fi
+
+ #expand the exclude-path for use with tar
+ exf=`ssh $username@$computer "ls ~/.backup/exclude"`
+
+ #We try to run tar on the remote computer
+ #    C is instead of 'cd $filesystem'
+ #    - is 'this directory'
+ #    l is 'stay in local filesystem
+ if `ssh $username@$computer "sudo /usr/local/sbin/output-encrypted-backup $filesystem $lastcmd" | dd of=$DATE.tmp 2>/dev/null` 
+ then
+  # perhaps it did work
+  mv $DATE.tmp $DATE.tgz.gpg
+
+  # FIXME: ignore the file lists for now
+
+  # fix perm
+  chmod 600 *tgz.gpg                  #only for us
+#  chmod 644 *sdx *idx 2>/dev/null     #everyone can read
+
+   echo $DATEs > ../.date            &&
+   touch -t $DATE ../.date
+ else
+  #it did not work
+  rm $DATE.tmp 2>/dev/null
+  echo "$backuplevel backup of $computer:$filesystem failed and deleted"
+ fi
+
+}
+
+#Løper gjennom listen av unixmaskiner som vi skal ta backup av
+for computer in $unixcomputers
+do
+ 
+ # find the user to do the non-root parts as 
+ if [ -f $confdir/username.$computer ] ; then
+   username=`cat $confdir/username.$computer`
+ else 
+   username=backup
+ fi
+
+ # Try to SSH to the computer without entering a password.
+ if `ssh -n -o NumberOfPasswordPrompts=0 $username@$computer /bin/true`; then
+  echo "Passwordless SSH to $username@$computer works."
+ else
+  echo "Could not use passwordless SSH to $username@$computer. Exiting."
+  exit 1;
+ fi
+ 
+ # see if se have a local exclude file
+ if [ -f $confdir/exclude.$computer ] ; then
+   localexclude=$confdir/exclude.$computer
+   
+   echo
+   echo "Overriding local exclude pattern with:"
+   cat $localexclude
+   echo
+   echo
+ else 
+   localexclude=$exclude
+ fi
+ 
+ localmaksantallfulle=$maksantallfulle
+ # Sjekk om det skal være et annet antall fulle backuper av en boks
+ if [ -f $confdir/maksfulle.$computer ] ; then
+   localmaksantallfulle=`cat $confdir/maksfulle.$computer`
+ fi
+ 
+ #tømmer variabelen for sikkerhets skyld
+ filesystems=""
+
+ #Sjekker nest siste felt i fstab. Om det er 0 tar vi ikke backup
+ filesystems=`ssh -n $username@$computer "cat /etc/fstab" \
+  | grep -v nfs \
+  | grep -v "^#" \
+  | grep -v "^$" \
+  | awk '{ if ( $(NF-1) != "0" ) print $2}' `
+
+ #clean up our dir at this client
+ ssh $username@$computer "rm -r ~/.backup ; mkdir -m 700 ~/.backup"
+
+ #try to copy $exclude to $computer
+ scp $localexclude $username@$computer:~/.backup/exclude ||
+    echo "could not copy $localexclude to $computer :("
+
+ #try to copy preeexec and postexec if they exist
+ [ -f $confdir/preexec.$computer ] &&
+    scp $confdir/preexec.$computer  $username@$computer:~/.backup/preexec
+ [ -f $confdir/postexec.$computer ] &&
+    scp $confdir/postexec.$computer $username@$computer:~/.backup/postexec
+
+ #try to run preexec if it exist
+ ssh $username@$computer "[ -f ~/.backup/preexec ] && /bin/bash -x ~/.backup/preexec"
+
+ for filesystem in $filesystems
+ do
+  #lager en variant uten tegnet "/" eller $ (gjelder NT)
+  sfilesystem=`echo $filesystem | tr '\/\$' '__'`
+
+  #lager det som trengs av kataloger
+  mkdir -m 755 -p $storagedir/$computer/$sfilesystem/{full,daglig} 2>/dev/null
+
+  #
+  echo $filesystem > ${storagedir}/${computer}/.${sfilesystem}.name 
+  chmod 644 ${storagedir}/${computer}/.${sfilesystem}.name
+
+  #set default backuplevel
+  backuplevel=daglig
+
+  if [ ! -f $storagedir/$computer/$sfilesystem/.date ]
+  then
+   #take the first full backup of this filesystem on this computer
+   backuplevel=full
+   echo $DATEs > $storagedir/$computer/$sfilesystem/.date
+  fi
+
+  #sjekker om det er på tide med en full
+  if 
+ [ -z "`find $storagedir/$computer/$sfilesystem/full/ -name \*tgz.gpg -mtime -$dagermellomfulle`" ]
+  then
+   backuplevel=full
+  fi
+ 
+  #gå ned i rett katalog
+  cd $storagedir/$computer/$sfilesystem/$backuplevel || exit 1
+
+  #perform the actual backup
+  backup
+
+  #delete complete backups
+  mf=$(($localmaksantallfulle+1))
+
+  for full in `ls -1t $storagedir/$computer/$sfilesystem/full/*tgz.gpg | tail +$mf`
+  do
+   prefix=`echo $full | sed "s/\.[^.]*$//"`
+   echo "$computer:$filesystem sletter full $prefix (for mange)"
+   rm $prefix*
+  done
+
+  #delete incremental backups older than the oldest complete backup
+  oldf=`ls -t1 $storagedir/$computer/$sfilesystem/full/*tgz.gpg | tail -1`
+  find \
+     $storagedir/$computer/$sfilesystem/daglig \
+     -type f \
+     \! -newer $oldf \
+     -exec rm {} \;
+     #denne funker bare med gnu find
+     #-printf "$computer:$filesystem sletter daglig %f (for gammel)\n" \
+
+ done
+
+ #try to run postexec if it exist
+ ssh $username@$computer "[ -f ~/.backup/postexec ] && /bin/bash -x ~/.backup/postexec"
+
+done
+
+#create report
+#/home/backup/report.sh $storagedir > /tmp/report.txt
+#[ ! -z $remotestat ] && scp /tmp/report.txt $remotestat
+###
+
+# print diskusage to logfile
+df -k
+
+date
-- 
2.39.2