# -*- mode: sh; sh-basic-offset: 3; indent-tabs-mode: nil; -*- # vim: set filetype=sh sw=3 sts=3 expandtab autoindent: HELPERS="$HELPERS rdiff:incremental_remote_filesystem_backup" declare -a rdiff_includes declare -a rdiff_excludes declare -a rdiff_vsincludes declare -a rdiff_vsexcludes # FUNCTIONS do_rdiff_host_includes() { set -o noglob # choose the files to backup REPLY= while [ -z "$REPLY" ]; do formBegin "$rdiff_title - host system: includes" for ((i=0; i < ${#rdiff_includes[@]} ; i++)); do formItem include ${rdiff_includes[$i]} done formItem include formItem include formItem include formItem include formItem include formItem include formItem include formItem include formDisplay [ $? = 0 ] || return unset rdiff_includes rdiff_includes=($REPLY) done set +o noglob } do_rdiff_vserver() { # choose the vservers to backup (into $selected_vservers) choose_one_or_more_vservers "$rdiff_title" [ $? = 0 ] || return 1 set -o noglob # choose the files to backup REPLY= while [ -z "$REPLY" ]; do formBegin "$rdiff_title - vsincludes (backup these directories from every vserver)" [ -z "$rdiff_vsincludes" ] && rdiff_vsincludes="$rdiff_default_includes" for i in $rdiff_vsincludes; do formItem include "$i" done formItem include "" formItem include "" formItem include "" formItem include "" formItem include "" formItem include "" formItem include "" formItem include "" formDisplay [ $? = 0 ] || return 1 rdiff_vsincludes=($REPLY) done set +o noglob } do_rdiff_excludes() { set -o noglob formBegin "$rdiff_title: excludes" for ((i=0; i < ${#rdiff_excludes[@]} ; i++)) do formItem exclude ${rdiff_excludes[$i]} done formItem exclude formItem exclude formItem exclude formItem exclude formItem exclude formItem exclude formItem exclude formItem exclude formDisplay [ $? = 0 ] || return unset rdiff_excludes rdiff_excludes=($REPLY) set +o noglob } do_rdiff_src() { choose_host_or_vservers_or_both "$rdiff_title" [ $? = 0 ] || return 1 case $host_or_vservers in 'host') do_rdiff_host_includes [ $? = 0 ] || return 1 ;; 'vservers') do_rdiff_vserver [ $? = 0 ] || return 1 ;; 'both') do_rdiff_host_includes [ $? = 0 ] || return 1 do_rdiff_vserver [ $? = 0 ] || return 1 ;; *) return 1 ;; esac do_rdiff_excludes [ $? = 0 ] || return 1 _src_done="(DONE)" setDefault dest } do_rdiff_dest() { declare -a tmp_array set -o noglob REPLY= while [ -z "$REPLY" -o -z "$rdiff_directory" -o -z "$rdiff_host" -o -z "$rdiff_user" ] do formBegin "$rdiff_title - destination: last three items are required" formItem "keep" "$rdiff_keep" formItem "dest_directory" "$rdiff_directory" formItem "dest_host" "$rdiff_host" formItem "dest_user" "$rdiff_user" formItem "dest_type" "$rdiff_type" formDisplay [ $? = 0 ] || return tmp_array=($REPLY) rdiff_keep=${tmp_array[0]} rdiff_directory=${tmp_array[1]} rdiff_host=${tmp_array[2]} rdiff_user=${tmp_array[3]} rdiff_type=${tmp_array[4]} done set +o noglob _dest_done="(DONE)" setDefault conn } do_rdiff_ssh_con() { local remote_status="ok" IFS=$' \t\n' if [ "$_dest_done" = "" ]; then msgBox "$rdiff_title: error" "You must first configure the destination." return elif [ "$rdiff_type" = "" ]; then msgBox "$rdiff_title: error" "You must first configure the destination backup type." return elif [ "$rdiff_user" = "" ]; then msgBox "$rdiff_title: error" "You must first configure the destination user." return elif [ "$rdiff_host" = "" ]; then msgBox "$rdiff_title: error" "You must first configure the destination host." return else booleanBox "$rdiff_title" "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 rsa -b 4096 -f /root/.ssh/id_rsa -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 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 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 .' result=$? echo "Hit return to continue." read case $result in 0 ) msgBox "$rdiff_title: error" "Directories are writable: Probably just a typo the first time." ;; 1 ) msgBox "$rdiff_title: error" "Connected successfully to $rdiff_user@$rdiff_host, but unable to write. Check ownership and modes of ~$rdiff_user on $rdiff_host." ;; 255 ) msgBox "$rdiff_title: 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_title: 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." read fi # 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 [ $? = 0 ]; then ssh $rdiff_user@$rdiff_host "test -w $rdiff_directory" if [ $? != 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=failed 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 ${rdiff_directory}" result=$? case $result in 0) msgBox "$rdiff_title: success" "Creation of the remote destination directory was a success!";; 1) msgBox "$rdiff_title: error" "Connected successfully to $rdiff_user@$rdiff_host, but was unable to create the destination directory, check the directory permissions." remote_status=failed;; 255) msgBox "$rdiff_title: 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=failed;; *) msgBox "$rdiff_title: error" "Unexpected error." remote_status=failed;; esac fi fi if [ "$remote_status" = "ok" ]; then do_rdiff_con fi } do_rdiff_con() { echo "Checking for local install of rdiff-backup" require_packages rdiff-backup 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_title: success" "Installation of rdiff-backup was a success!" do_rdiff_con;; 1) msgBox "$rdiff_title: error" "Connected successfully to $rdiff_user@$rdiff_host, but was unable to install the package for some reason.";; 255) msgBox "$rdiff_title: 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_title: 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 booleanBox "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() { get_next_filename $configdirectory/90.rdiff cat > $next_filename <<EOF # options = --force # when = everyday at 02 [source] type = local keep = $rdiff_keep # A few notes about includes and excludes: # 1. include, exclude and vsinclude statements support globbing with '*' # 2. Symlinks are not dereferenced. Moreover, an include line whose path # contains, at any level, a symlink to a directory, will only have the # symlink backed-up, not the target directory's content. Yes, you have to # dereference yourself the symlinks, or to use 'mount --bind' instead. # Example: let's say /home is a symlink to /mnt/crypt/home ; the following # line will only backup a "/home" symlink ; neither /home/user nor # /home/user/Mail will be backed-up : # include = /home/user/Mail # A workaround is to 'mount --bind /mnt/crypt/home /home' ; another one is to # write : # include = /mnt/crypt/home/user/Mail # 3. All the excludes come after all the includes. The order is not otherwise # taken into account. # files to include in the backup EOF ## includes ## if [ "$host_or_vservers" == host -o "$host_or_vservers" == both ]; then set -o noglob for ((i=0; i < ${#rdiff_includes[@]} ; i++)); do echo "include = ${rdiff_includes[$i]}" >> $next_filename done set +o noglob fi if [ "$host_or_vservers" == vservers -o "$host_or_vservers" == both ]; then cat >> $next_filename <<EOF # # If vservers = yes in /etc/backupninja.conf then the following variables can # be used: # vsnames = all | <vserver1> <vserver2> ... (default = all) # vsinclude = <path> # vsinclude = <path> # ... # Any path specified in vsinclude is added to the include list for each vserver # listed in vsnames (or all if vsnames = all, which is the default). # # For example, vsinclude = /home will backup the /home directory in every # vserver listed in vsnames. If you have 'vsnames = foo bar baz', this # vsinclude will add to the include list /vservers/foo/home, /vservers/bar/home # and /vservers/baz/home. # Vservers paths are derived from $VROOTDIR. EOF set -o noglob echo -e "vsnames = $selected_vservers\n" >> $next_filename for i in $rdiff_vsincludes; do echo "vsinclude = $i" >> $next_filename done set +o noglob fi ## excludes ## set -o noglob for ((i=0; i < ${#rdiff_excludes[@]} ; i++)); do echo exclude = ${rdiff_excludes[$i]} >> $next_filename done set +o noglob cat >> $next_filename <<EOF ###################################################### ## destination section ## (where the files are copied to) [dest] type = remote directory = $rdiff_directory host = $rdiff_host user = $rdiff_user EOF chmod 600 $next_filename } rdiff_main_menu() { 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_title" "choose a step:" \ src "$srcitem" \ dest "$destitem" \ conn "$conitem" \ finish "finish and create config file" [ $? = 0 ] || return result="$REPLY" case "$result" in "src") do_rdiff_src;; "dest") do_rdiff_dest;; "conn") do_rdiff_ssh_con;; "adv") do_rdiff_adv;; "finish") if [[ "$_con_done$_dest_done$_src_done" != "(DONE)(DONE)(DONE)" ]]; then msgBox "$rdiff_title" "You cannot create the configuration file until the other steps are completed." else do_rdiff_finish return fi ;; esac done } rdiff_wizard() { # Global variables rdiff_title="rdiff-backup action wizard" _src_done= _dest_done= _con_done= _adv_done= rdiff_keep=60D rdiff_directory=/backup/`hostname` rdiff_type=remote rdiff_user= rdiff_host= # Global variables whose '*' shall not be expanded set -o noglob rdiff_includes=(/var/spool/cron/crontabs /var/backups /etc /root /home /usr/local/*bin /var/lib/dpkg/status*) rdiff_excludes=(/home/*/.gnupg /home/*/.local/share/Trash /home/*/.Trash /home/*/.thumbnails /home/*/.beagle /home/*/.aMule /home/*/gtk-gnutella-downloads /var/cache/backupninja/duplicity) rdiff_vsincludes= set +o noglob rdiff_main_menu }