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  • HELPERS="$HELPERS rdiff:incremental_remote_filesystem_backup"
    
    
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    declare -a rdiff_includes
    declare -a rdiff_excludes
    
    
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      set -o noglob
      formBegin "rdiff action wizard"
        formItem "keep" "$rdiff_keep"
        formItem "dest_directory" "$rdiff_directory"
        formItem "dest_host" "$rdiff_host"
        formItem "dest_user" "$rdiff_user"
      formDisplay
    
      [ $? = 0 ] || return
    
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      IFS=$''
      replyconverted=`echo $REPLY | tr '\n' :`
      IFS=$':'
      thereply=($replyconverted)
      IFS=$' \t\n'
      
      rdiff_keep=${thereply[0]}
      rdiff_directory=${thereply[1]}
      rdiff_host=${thereply[2]}
      rdiff_user=${thereply[3]}
    
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      set +o noglob
    
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      #echo ${rdiff_includes[@]}
      set -o noglob
      formBegin "rdiff action wizard: includes"
        for ((i=0; i < ${#rdiff_includes[@]} ; i++)); do
           formItem include ${rdiff_includes[$i]}
        done
        formItem include 
        formItem include 
        formItem include 
      formDisplay
    
      [ $? = 0 ] || return
    
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      unset rdiff_includes
      rdiff_includes=($REPLY)
    
      formBegin "rdiff action wizard: excludes" 
        for ((i=0; i < ${#rdiff_excludes[@]} ; i++)); do
           formItem exclude ${rdiff_excludes[$i]}
        done
        formItem exclude 
        formItem exclude 
      formDisplay
    
      [ $? = 0 ] || return
    
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      unset rdiff_excludes
      rdiff_excludes=($REPLY)
    
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      _src_done="(DONE)"
      setDefault dest
      set +o noglob
    
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      IFS=$' \t\n'
    
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        msgBox "rdiff action wizard: error" "You must first configure the destination."
        return
      elif [ "$rdiff_user" = "" ]; then
        msgBox "rdiff action wizard: error" "You must first configure the destination user."
        return
      elif [ "$rdiff_host" = "" ]; then
        msgBox "rdiff action wizard: error" "You must first configure the destination host."
    
        booleanBox "rdiff action wizard" "This step will create a ssh key for the local root user with no passphrase (if one does not already exist), and attempt to copy root's public ssh key to authorized_keys file of $rdiff_user@$rdiff_host. This will allow the local root to make unattended backups to $rdiff_user@$rdiff_host.\n\n\nAre you sure you want to continue?"
    
        [ $? = 0 ] || return
    
      fi
    
      if [ ! -f /root/.ssh/id_dsa.pub -a ! -f /root/.ssh/id_rsa.pub ]; then
        echo "Creating local root's ssh key"
        ssh-keygen -t dsa -f /root/.ssh/id_dsa -N ""
        echo "Done. hit return to continue"
        read
      fi
      
      ssh -o PreferredAuthentications=publickey $rdiff_host -l $rdiff_user "exit" 2> /dev/null
      if [ $? -ne 0 ]; then
    
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        echo "Copying root's public ssh key to authorized_keys of $rdiff_user@$rdiff_host. When prompted, specify the password for user $rdiff_user@$rdiff_host."
    
        ssh-copy-id -i /root/.ssh/id_[rd]sa.pub $rdiff_user@$rdiff_host
        if [ $? -ne 0 ]; then
    
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          echo "FAILED: Couldn't copy root's public ssh key to authorized_keys of $rdiff_user@$rdiff_host."
    
          ssh $rdiff_user@$rdiff_host 'test -w .ssh || test -w .'
    
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          result=$?
          echo "Hit return to continue."
          read
          case $result in
    
            0 )   msgBox "rdiff action wizard: error" "Directories are writable: Probably just a typo the first time." ;;
            1 )   msgBox "rdiff action wizard: error" "Connected successfully to $rdiff_user@$rdiff_host, but unable to write. Check ownership and modes of ~$rdiff_user on $rdiff_host." ;;
    
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            255 ) msgBox "rdiff action wizard: error" "Failed to connect to $rdiff_user@$rdiff_host. Check hostname, username, and password. Also, make sure sshd is running on the destination host." ;;
    
            * )   msgBox "rdiff action wizard: error" "Unexpected error." ;;
          esac 
    
          return
        else
          echo "Done. hit return to continue"
          read
        fi
      else
    
        echo "root@localhost is already in authorized_keys of $rdiff_user@$rdiff_host."
        echo "Hit return to continue."
    
      # test to see if the remote rdiff backup directory exists and is writable
      echo "Testing to see if remote rdiff backup directory exists and is writable"
      ssh $rdiff_user@$rdiff_host "test -d ${rdiff_directory}"
      if [ $? -eq 0 ]
      then
      	ssh $rdiff_user@$rdiff_host "test -w $rdiff_directory"
      	if [ $? -ne 0 ]
     	then
    		msgBox "destination directory is not writable!" "The remote destination directory is not writable by the user you specified. Please fix the permissions on the directory and then try again."
    		remote_status=1
    	else
    		remote_status=0
      	fi
      else
    	booleanBox "Remote directory does not exist" "The destination backup directory does not exist, do you want me to create it for you?"
    	if [ $? = 0 ]
      	then
    		ssh $rdiff_user@$rdiff_host "mkdir -p ${rdiff_directory}"
    		result=$?
    		echo "Hit return to continue."
    		read
    		case $result in
    			0)   
    				msgBox "rdiff action wizard: success" "Creation of the remote destination directory was a success!" 
    				remote_status=0
    			;;
    			1)   
    				msgBox "rdiff action wizard: error" "Connected successfully to $rdiff_user@$rdiff_host, but was unable to create the destination directory, check the directory permissions." 
    				remote_status=1
    			;;
    			255) 
    				msgBox "rdiff action wizard: error" "Failed to connect to $rdiff_user@$rdiff_host. Check hostname, username, and password. Also, make sure sshd is running on the destination host." 
    				remote_status=1
    			;;
    			*)   
    				msgBox "rdiff action wizard: error" "Unexpected error." 
    				remote_status=1
    			;;
    			esac 
    			return
    	  fi
      fi
      
      if [ $remote_status -ne 1 ]
      then
    	do_rdiff_con
      fi
    
    }
    
    do_rdiff_con() {
      echo "Testing to make sure destination has rdiff-backup installed and is compatible."
    
      remote_result=`/usr/bin/rdiff-backup --test-server $rdiff_user@$rdiff_host::/ 2>&1 >&-`
    
      if [ $? -ne 0 ]
      then
      	echo $remote_result | grep -q "command not found"
    	if [ $? -eq 0 ]
    	then
    		if [ "$rdiff_user" = "root" ]
    		then
    			booleanBox "install rdiff-backup?" "It seems like the remote machine does not have rdiff-backup installed, I can attempt to install rdiff-backup on the remote machine.\n\n\nDo you want me to attempt this now?"
        			if [ $? = 0 ] 
    			then
           				ssh $rdiff_user@$rdiff_host 'apt-get install rdiff-backup'
     				result=$?
    				echo "Hit return to continue."
    				read
    				case $result in
    					0)   
    						msgBox "rdiff action wizard: success" "Installation of rdiff-backup was a success!" 
    						do_rdiff_con
    					;;
    					1)   
    						msgBox "rdiff action wizard: error" "Connected successfully to $rdiff_user@$rdiff_host, but was unable to install the package for some reason." 
    					;;
    					255) 
    						msgBox "rdiff action wizard: error" "Failed to connect to $rdiff_user@$rdiff_host. Check hostname, username, and password. Also, make sure sshd is running on the destination host." 
    					;;
    					*)   
    						msgBox "rdiff action wizard: error" "Unexpected error." 
    					;;
    				esac 
    				return
         			fi
    		else
    			booleanBox "install rdiff-backup" "Please install rdiff-backup on the remote machine, this cannot be done automatically, as the remote user in your configuration is not root. \n\nIf you have installed rdiff-backup on the remote machine and you are getting this error, then there is a version incompatibility between that version and the local version.\n\nPlease resolve this problem and then try connecting again.\n\n\n\nTry connecting again?"
    			if [ $? = 0 ]
    			then
    				do_rdiff_con
    			else
    				return
    			fi
    		fi
    	else
    		msgBox "incompatible versions of rdiff-backup" "It looks like rdiff-backup is installed on the remote machine, but it may be an incompatible version with the one installed locally, or something else is amiss.\n\nPlease resolve this problem and then try connecting again.\n\n\nTry connecting again?"
    		if [ $? = 0 ]
    		then
    			do_rdiff_con
    		else
    			return
    		fi
        	fi
       else
     	echo "SUCCESS: Everything looks good!"
    	echo "Hit return to continue."
    	read
       fi
    
    
      _con_done="(DONE)"
      setDefault finish
    }
    
    do_rdiff_finish() {
    
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       get_next_filename $configdirectory/90.rdiff
       cat > $next_filename <<EOF
    
    # options = --force
    # when = everyday at 02
    
    
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    [source]
    type = local
    
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    EOF
    
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        set -o noglob
        for ((i=0; i < ${#rdiff_includes[@]} ; i++)); do
    
            echo "include = ${rdiff_includes[$i]}" >> $next_filename
    
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        done
    
        for ((i=0; i < ${#rdiff_excludes[@]} ; i++)); do
            echo exclude = ${rdiff_excludes[$i]} >> $next_filename
    
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        done
        set +o noglob
        cat >> $next_filename <<EOF
    
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    [dest]
    type = remote
    
    directory = $rdiff_directory
    host = $rdiff_host
    user = $rdiff_user
    
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    EOF
    
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    }
    
      while true; do
        srcitem="choose files to include & exclude $_src_done"
        destitem="configure backup destination $_dest_done"
        conitem="set up ssh keys and test remote connection $_con_done"
        advitem="edit advanced settings $_adv_done"
        menuBox "rdiff action wizard" "choose a step:" \
            src "$srcitem" \
            dest "$destitem" \
            conn "$conitem" \
            finish "finish and create config file"
    
        [ $? = 0 ] || return
    
        case "$result" in
           "src") do_rdiff_src;;
           "dest") do_rdiff_dest;;
    
           "conn") do_rdiff_conn;;
    
           "adv") do_rdiff_adv;;
           "finish")
              if [[ "$_con_done$_dest_done$_src_done" != "(DONE)(DONE)(DONE)" ]]; then
                msgBox "rdiff action wizard" "You cannot create the configuration file until the other steps are completed."
              else
                do_rdiff_finish
                return
              fi
              ;;
        esac
    
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      require_packages rdiff-backup
    
      _src_done=
      _dest_done=
      _con_done=
      _adv_done=
      rdiff_keep=60D
      rdiff_directory=/backup/`hostname`
      rdiff_user=
      rdiff_host=
    
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      rdiff_includes=(/var/spool/cron/crontabs /var/backups /etc /root /home /usr/local/*bin /var/lib/dpkg/status*)
      rdiff_excludes=(/home/*/.gnupg)