2 #============================================================= -*-perl-*-
4 # configure.pl: Configuration and installation program for BackupPC
8 # This script should be run as root:
12 # To read about the command-line options for this configure script:
14 # perldoc configure.pl
16 # The installation steps are described as the script runs.
19 # Craig Barratt <cbarratt@users.sourceforge.net>
22 # Copyright (C) 2001-2007 Craig Barratt
24 # This program is free software; you can redistribute it and/or modify
25 # it under the terms of the GNU General Public License as published by
26 # the Free Software Foundation; either version 2 of the License, or
27 # (at your option) any later version.
29 # This program is distributed in the hope that it will be useful,
30 # but WITHOUT ANY WARRANTY; without even the implied warranty of
31 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
32 # GNU General Public License for more details.
34 # You should have received a copy of the GNU General Public License
35 # along with this program; if not, write to the Free Software
36 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
38 #========================================================================
40 # Version 3.1.0beta0, released 3 Sep 2007.
42 # See http://backuppc.sourceforge.net.
44 #========================================================================
48 use vars qw(%Conf %OrigConf);
52 my $EncodeVersion = eval($Encode::VERSION);
53 if ( $EncodeVersion < 1.99 ) {
54 print("Error: you need to upgrade perl's Encode package.\n"
55 . "I found $EncodeVersion and BackupPC needs >= 1.99\n"
56 . "Please go to www.cpan.org or use the cpan command.\n");
60 my @Packages = qw(File::Path File::Spec File::Copy DirHandle Digest::MD5
61 Data::Dumper Getopt::Std Getopt::Long Pod::Usage
62 BackupPC::Lib BackupPC::FileZIO);
64 foreach my $pkg ( @Packages ) {
67 if ( $pkg =~ /BackupPC/ ) {
70 Error loading $pkg: $@
71 BackupPC cannot load the package $pkg, which is included in the
72 BackupPC distribution. This probably means you did not cd to the
73 unpacked BackupPC distribution before running configure.pl, eg:
75 cd BackupPC-__VERSION__
84 BackupPC needs the package $pkg. Please install $pkg
85 before installing BackupPC.
91 $opts{"set-perms"} = 1;
100 "config-override=s%",
117 pod2usage(1) if ( $opts{help} );
118 pod2usage(-exitstatus => 0, -verbose => 2) if $opts{man};
120 my $DestDir = $opts{"dest-dir"};
121 $DestDir = "" if ( $DestDir eq "/" );
123 if ( !$opts{"uid-ignore"} && $< != 0 ) {
126 This configure script should be run as root, rather than uid $<.
127 Provided uid $< has sufficient permissions to create the data and
128 install directories, then it should be ok to proceed. Otherwise,
129 please quit and restart as root.
132 exit(1) if ( prompt("--> Do you want to continue?",
134 exit(1) if ( $opts{batch} && !$opts{"uid-ignore"} );
138 # Whether we use the file system hierarchy conventions or not.
139 # Older versions did not. BackupPC used to be installed in
140 # two main directories (in addition to CGI and html pages)
142 # TopDir which includes subdirs conf, log, pc, pool, cpool
144 # InstallDir which includes subdirs bin, lib, doc
146 # With FHS enabled (which is the default for new installations)
147 # the config files move to /etc/BackupPC and log files to /var/log:
149 # /etc/BackupPC/config.pl main config file (was $TopDir/conf/config.pl)
150 # /etc/BackupPC/hosts hosts file (was $TopDir/conf/hosts)
151 # /etc/BackupPC/pc/HOST.pl per-pc config file (was $TopDir/pc/HOST/config.pl)
152 # /var/log/BackupPC log files (was $TopDir/log)
153 # /var/log/BackupPC Pid, status and email info (was $TopDir/log)
157 # Check if this is an upgrade, in which case read the existing
158 # config file to get all the defaults.
161 my $ConfigFileOK = 1;
163 if ( $ConfigFileOK && -f "/etc/BackupPC/config.pl" ) {
164 $ConfigPath = "/etc/BackupPC/config.pl";
165 $opts{fhs} = 1 if ( !defined($opts{fhs}) );
168 Found /etc/BackupPC/config.pl, so this is an upgrade of an
169 existing BackupPC installation. We will verify some existing
170 information, but you will probably not need to make any
171 changes - just hit ENTER to each question.
176 Is this a new installation or upgrade for BackupPC? If this is
177 an upgrade please tell me the full path of the existing BackupPC
178 configuration file (eg: /etc/BackupPC/config.pl). Otherwise, just
182 $ConfigPath = prompt("--> Full path to existing main config.pl",
186 last if ( $ConfigPath eq ""
187 || ($ConfigPath =~ /^\// && -f $ConfigPath && -w $ConfigPath) );
188 my $problem = "is not an absolute path";
189 $problem = "is not writable" if ( !-w $ConfigPath );
190 $problem = "is not readable" if ( !-r $ConfigPath );
191 $problem = "is not a regular file" if ( !-f $ConfigPath );
192 $problem = "doesn't exist" if ( !-e $ConfigPath );
193 print("The file '$ConfigPath' $problem.\n");
194 if ( $opts{batch} ) {
195 print("Need to specify a valid --config-path for upgrade\n");
200 $opts{fhs} = 1 if ( !defined($opts{fhs}) && $ConfigPath eq "" );
201 $opts{fhs} = 0 if ( !defined($opts{fhs}) );
204 if ( $ConfigPath ne "" && -r $ConfigPath ) {
205 (my $confDir = $ConfigPath) =~ s{/[^/]+$}{};
206 die("BackupPC::Lib->new failed\n")
207 if ( !($bpc = BackupPC::Lib->new(".", ".", $confDir, 1)) );
208 %Conf = $bpc->Conf();
211 ($Conf{TopDir} = $ConfigPath) =~ s{/[^/]+/[^/]+$}{}
212 if ( $Conf{TopDir} eq '' );
213 $bpc->{LogDir} = $Conf{LogDir} = "$Conf{TopDir}/log"
214 if ( $Conf{LogDir} eq '' );
216 $bpc->{ConfDir} = $Conf{ConfDir} = $confDir;
217 my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort}, 1);
221 BackupPC is running on $Conf{ServerHost}. You need to stop BackupPC
222 before you can upgrade the code. Depending upon your installation,
223 you could run "/etc/init.d/backuppc stop".
231 # Create defaults for FHS setup
234 $Conf{TopDir} ||= $opts{"data-dir"} || "/data/BackupPC";
235 $Conf{ConfDir} ||= $opts{"config-dir"} || "/etc/BackupPC";
236 $Conf{InstallDir} ||= $opts{"install-dir"} || "/usr/local/BackupPC";
237 $Conf{LogDir} ||= $opts{"log-dir"} || "/var/log/BackupPC";
239 $Conf{TopDir} ||= $opts{"data-dir"} || "/data/BackupPC";
240 $Conf{ConfDir} ||= $opts{"config-dir"} || "$Conf{TopDir}/conf";
241 $Conf{InstallDir} ||= $opts{"install-dir"} || "/usr/local/BackupPC";
242 $Conf{LogDir} ||= $opts{"log-dir"} || "$Conf{TopDir}/log";
246 # These are the programs whose paths we need to find
250 'gtar/tar' => "TarClientPath",
251 smbclient => "SmbClientPath",
252 nmblookup => "NmbLookupPath",
253 rsync => "RsyncClientPath",
256 'ssh/ssh2' => "SshPath",
257 sendmail => "SendmailPath",
258 hostname => "HostnamePath",
259 split => "SplitPath",
263 bzip2 => "Bzip2Path",
266 foreach my $prog ( sort(keys(%Programs)) ) {
268 foreach my $subProg ( split(/\//, $prog) ) {
269 $path = FindProgram("$ENV{PATH}:/bin:/usr/bin:/sbin:/usr/sbin",
270 $subProg) if ( !length($path) );
272 $Conf{$Programs{$prog}} = $path if ( !length($Conf{$Programs{$prog}}) );
278 I found the following locations for these programs:
281 foreach my $prog ( sort(keys(%Programs)) ) {
282 printf(" %-12s => %s\n", $prog, $Conf{$Programs{$prog}});
285 last if (prompt('--> Are these paths correct?', 'y') =~ /^y/i);
286 foreach my $prog ( sort(keys(%Programs)) ) {
287 $Conf{$Programs{$prog}} = prompt("--> $prog path",
288 $Conf{$Programs{$prog}});
292 my $Perl58 = system($Conf{PerlPath}
293 . q{ -e 'exit($^V && $^V ge v5.8.0 ? 1 : 0);'});
298 BackupPC needs perl version 5.8.0 or later. $Conf{PerlPath} appears
299 to be an older version. Please upgrade to a newer version of perl
300 and re-run this configure script.
308 Please tell me the hostname of the machine that BackupPC will run on.
311 chomp($Conf{ServerHost} = `$Conf{HostnamePath}`)
312 if ( defined($Conf{HostnamePath}) && !defined($Conf{ServerHost}) );
313 $Conf{ServerHost} = prompt("--> BackupPC will run on host",
319 BackupPC should run as a dedicated user with limited privileges. You
320 need to create a user. This user will need read/write permission on
321 the main data directory and read/execute permission on the install
322 directory (these directories will be setup shortly).
324 The primary group for this user should also be chosen carefully.
325 The data directories and files will have group read permission,
326 so group members can access backup files.
329 my($name, $passwd, $Uid, $Gid);
331 $Conf{BackupPCUser} = prompt("--> BackupPC should run as user",
332 $Conf{BackupPCUser} || "backuppc",
334 if ( $opts{"set-perms"} ) {
335 ($name, $passwd, $Uid, $Gid) = getpwnam($Conf{BackupPCUser});
336 last if ( $name ne "" );
339 getpwnam() says that user $Conf{BackupPCUser} doesn't exist. Please
340 check the name and verify that this user is in the passwd file.
343 exit(1) if ( $opts{batch} );
351 Please specify an install directory for BackupPC. This is where the
352 BackupPC scripts, library and documentation will be installed.
357 $Conf{InstallDir} = prompt("--> Install directory (full path)",
360 last if ( $Conf{InstallDir} =~ /^\// );
361 if ( $opts{batch} ) {
362 print("Need to specify --install-dir for new installation\n");
369 Please specify a data directory for BackupPC. This is where all the
370 PC backup data is stored. This file system needs to be big enough to
371 accommodate all the PCs you expect to backup (eg: at least several GB
377 $Conf{TopDir} = prompt("--> Data directory (full path)",
380 last if ( $Conf{TopDir} =~ /^\// );
381 if ( $opts{batch} ) {
382 print("Need to specify --data-dir for new installation\n");
387 $Conf{CompressLevel} = $opts{"compress-level"}
388 if ( defined($opts{"compress-level"}) );
390 if ( !defined($Conf{CompressLevel}) ) {
391 $Conf{CompressLevel} = BackupPC::FileZIO->compOk ? 3 : 0;
392 if ( $ConfigPath eq "" && $Conf{CompressLevel} ) {
395 BackupPC can compress pool files, providing around a 40% reduction in pool
396 size (your mileage may vary). Specify the compression level (0 turns
397 off compression, and 1 to 9 represent good/fastest to best/slowest).
398 The recommended values are 0 (off) or 3 (reasonable compression and speed).
399 Increasing the compression level to 5 will use around 20% more cpu time
400 and give perhaps 2-3% more compression.
403 } elsif ( $ConfigPath eq "" ) {
406 BackupPC can compress pool files, but it needs the Compress::Zlib
407 package installed (see www.cpan.org). Compression will provide around a
408 40% reduction in pool size, at the expense of cpu time. You can leave
409 compression off and run BackupPC without compression, in which case you
410 should leave the compression level at 0 (which means off). You could
411 install Compress::Zlib and turn compression on later, but read the
412 documentation first about how to do this. Or the better choice is
413 to quit, install Compress::Zlib, and re-run configure.pl.
416 } elsif ( $Conf{CompressLevel} ) {
417 $Conf{CompressLevel} = 0;
420 BackupPC now supports pool file compression. Since you are upgrading
421 BackupPC you probably have existing uncompressed backups. You have
422 several choices if you want to turn on compression. You can run
423 the script BackupPC_compressPool to convert everything to compressed
424 form. Or you can simply turn on compression, so that new backups
425 will be compressed. This will increase the pool storage requirement,
426 since both uncompressed and compressed copies of files will be stored.
427 But eventually the old uncompressed backups will expire, recovering
428 the pool storage. Please see the documentation for more details.
430 If you are not sure what to do, leave the Compression Level at 0,
431 which disables compression. You can always read the documentation
432 and turn it on later.
436 $Conf{CompressLevel} = 0;
439 BackupPC now supports pool file compression, but it needs the
440 Compress::Zlib module (see www.cpan.org). For now, leave
441 the compression level set at 0 to disable compression. If you
442 want you can install Compress::Zlib and turn compression on.
443 Please see the documentation for more details about converting
444 old backups to compressed form.
450 = prompt("--> Compression level", $Conf{CompressLevel});
451 last if ( $Conf{CompressLevel} =~ /^\d+$/ );
457 BackupPC has a powerful CGI perl interface that runs under Apache.
458 A single executable needs to be installed in a cgi-bin directory.
459 This executable needs to run as set-uid $Conf{BackupPCUser}, or
460 it can be run under mod_perl with Apache running as user $Conf{BackupPCUser}.
462 Leave this path empty if you don't want to install the CGI interface.
467 $Conf{CgiDir} = prompt("--> CGI bin directory (full path)",
470 last if ( $Conf{CgiDir} =~ /^\// || $Conf{CgiDir} eq "" );
471 if ( $opts{batch} ) {
472 print("Need to specify --cgi-dir for new installation\n");
477 if ( $Conf{CgiDir} ne "" ) {
481 BackupPC's CGI script needs to display various GIF images that
482 should be stored where Apache can serve them. They should be
483 placed somewhere under Apache's DocumentRoot. BackupPC also
484 needs to know the URL to access these images. Example:
486 Apache image directory: /usr/local/apache/htdocs/BackupPC
487 URL for image directory: /BackupPC
489 The URL for the image directory should start with a slash.
493 $Conf{CgiImageDir} = prompt("--> Apache image directory (full path)",
496 last if ( $Conf{CgiImageDir} =~ /^\// );
497 if ( $opts{batch} ) {
498 print("Need to specify --html-dir for new installation\n");
503 $Conf{CgiImageDirURL} = prompt("--> URL for image directory (omit http://host; starts with '/')",
504 $Conf{CgiImageDirURL},
506 last if ( $Conf{CgiImageDirURL} =~ /^\// );
507 if ( $opts{batch} ) {
508 print("Need to specify --html-dir-url for new installation\n");
518 - install the binaries, lib and docs in $Conf{InstallDir},
519 - create the data directory $Conf{TopDir},
520 - create/update the config.pl file $Conf{ConfDir}/config.pl,
521 - optionally install the cgi-bin interface.
525 exit unless prompt("--> Do you want to continue?", "y") =~ /y/i;
528 # Create install directories
530 foreach my $dir ( qw(bin doc
539 next if ( -d "$DestDir$Conf{InstallDir}/$dir" );
540 mkpath("$DestDir$Conf{InstallDir}/$dir", 0, 0755);
541 if ( !-d "$DestDir$Conf{InstallDir}/$dir"
542 || !my_chown($Uid, $Gid, "$DestDir$Conf{InstallDir}/$dir") ) {
543 die("Failed to create or chown $DestDir$Conf{InstallDir}/$dir\n");
545 print("Created $DestDir$Conf{InstallDir}/$dir\n");
550 # Create CGI image directory
552 foreach my $dir ( ($Conf{CgiImageDir}) ) {
553 next if ( $dir eq "" || -d "$DestDir$dir" );
554 mkpath("$DestDir$dir", 0, 0755);
555 if ( !-d "$DestDir$dir" || !my_chown($Uid, $Gid, "$DestDir$dir") ) {
556 die("Failed to create or chown $DestDir$dir");
558 print("Created $DestDir$dir\n");
563 # Create other directories
567 "$Conf{TopDir}/pool",
568 "$Conf{TopDir}/cpool",
570 "$Conf{TopDir}/trash",
574 mkpath("$DestDir$dir", 0, 0750) if ( !-d "$DestDir$dir" );
575 if ( !-d "$DestDir$dir"
576 || !my_chown($Uid, $Gid, "$DestDir$dir") ) {
577 die("Failed to create or chown $DestDir$dir\n");
579 print("Created $DestDir$dir\n");
583 printf("Installing binaries in $DestDir$Conf{InstallDir}/bin\n");
584 foreach my $prog ( qw(
585 __CONFIGURE_BIN_LIST__
587 InstallFile($prog, "$DestDir$Conf{InstallDir}/$prog", 0555);
590 printf("Installing library in $DestDir$Conf{InstallDir}/lib\n");
591 foreach my $lib ( qw(
592 __CONFIGURE_LIB_LIST__
594 InstallFile($lib, "$DestDir$Conf{InstallDir}/$lib", 0444);
597 if ( $Conf{CgiImageDir} ne "" ) {
598 printf("Installing images in $DestDir$Conf{CgiImageDir}\n");
599 foreach my $img ( <images/*> ) {
600 (my $destImg = $img) =~ s{^images/}{};
601 InstallFile($img, "$DestDir$Conf{CgiImageDir}/$destImg", 0444, 1);
605 # Install new CSS file, making a backup copy if necessary
607 my $cssBackup = "$DestDir$Conf{CgiImageDir}/BackupPC_stnd.css.pre-__VERSION__";
608 if ( -f "$DestDir$Conf{CgiImageDir}/BackupPC_stnd.css" && !-f $cssBackup ) {
609 rename("$DestDir$Conf{CgiImageDir}/BackupPC_stnd.css", $cssBackup);
611 InstallFile("conf/BackupPC_stnd.css",
612 "$DestDir$Conf{CgiImageDir}/BackupPC_stnd.css", 0444, 0);
613 InstallFile("conf/BackupPC_stnd_orig.css",
614 "$DestDir$Conf{CgiImageDir}/BackupPC_stnd_orig.css", 0444, 0);
615 InstallFile("conf/sorttable.js",
616 "$DestDir$Conf{CgiImageDir}/sorttable.js", 0444, 0);
619 printf("Making init.d scripts\n");
620 foreach my $init ( qw(gentoo-backuppc gentoo-backuppc.conf linux-backuppc
621 solaris-backuppc debian-backuppc freebsd-backuppc
622 suse-backuppc slackware-backuppc ) ) {
623 InstallFile("init.d/src/$init", "init.d/$init", 0444);
626 printf("Making Apache configuration file for suid-perl\n");
627 InstallFile("httpd/src/BackupPC.conf", "httpd/BackupPC.conf", 0644);
629 printf("Installing docs in $DestDir$Conf{InstallDir}/doc\n");
630 foreach my $doc ( qw(BackupPC.pod BackupPC.html) ) {
631 InstallFile("doc/$doc", "$DestDir$Conf{InstallDir}/doc/$doc", 0444);
634 printf("Installing config.pl and hosts in $DestDir$Conf{ConfDir}\n");
635 InstallFile("conf/hosts", "$DestDir$Conf{ConfDir}/hosts", 0644)
636 if ( !-f "$DestDir$Conf{ConfDir}/hosts" );
639 # Now do the config file. If there is an existing config file we
640 # merge in the new config file, adding any new configuration
641 # parameters and deleting ones that are no longer needed.
643 my $dest = "$DestDir$Conf{ConfDir}/config.pl";
644 my ($distConf, $distVars) = ConfigParse("conf/config.pl");
645 my ($oldConf, $oldVars);
646 my ($newConf, $newVars) = ($distConf, $distVars);
648 ($oldConf, $oldVars) = ConfigParse($dest);
649 ($newConf, $newVars) = ConfigMerge($oldConf, $oldVars, $distConf, $distVars);
653 # Update various config parameters. The old config is in Conf{}
654 # and the new config is an array in text form in $newConf->[].
656 $Conf{EMailFromUserName} ||= $Conf{BackupPCUser};
657 $Conf{EMailAdminUserName} ||= $Conf{BackupPCUser};
660 # Guess $Conf{CgiURL}
662 if ( !defined($Conf{CgiURL}) ) {
663 if ( $Conf{CgiDir} =~ m{cgi-bin(/.*)} ) {
664 $Conf{CgiURL} = "'http://$Conf{ServerHost}/cgi-bin$1/BackupPC_Admin'";
666 $Conf{CgiURL} = "'http://$Conf{ServerHost}/cgi-bin/BackupPC_Admin'";
671 # The smbclient commands have moved from hard-coded to the config file.
672 # $Conf{SmbClientArgs} no longer exists, so merge it into the new
673 # commands if it still exists.
675 if ( defined($Conf{SmbClientArgs}) ) {
676 if ( $Conf{SmbClientArgs} ne "" ) {
677 foreach my $param ( qw(SmbClientRestoreCmd SmbClientFullCmd
678 SmbClientIncrCmd) ) {
679 $newConf->[$newVars->{$param}]{text}
680 =~ s/(-E\s+-N)/$1 $Conf{SmbClientArgs}/;
683 delete($Conf{SmbClientArgs});
687 # CSS is now stored in a file rather than a big config variable.
689 delete($Conf{CSSstylesheet});
692 # The blackout timing settings are now stored in a list of hashes, rather
693 # than three scalar parameters.
695 if ( defined($Conf{BlackoutHourBegin}) ) {
696 $Conf{BlackoutPeriods} = [
698 hourBegin => $Conf{BlackoutHourBegin},
699 hourEnd => $Conf{BlackoutHourEnd},
700 weekDays => $Conf{BlackoutWeekDays},
703 delete($Conf{BlackoutHourBegin});
704 delete($Conf{BlackoutHourEnd});
705 delete($Conf{BlackoutWeekDays});
709 # $Conf{RsyncLogLevel} has been replaced by $Conf{XferLogLevel}
711 if ( defined($Conf{RsyncLogLevel}) ) {
712 $Conf{XferLogLevel} = $Conf{RsyncLogLevel};
713 delete($Conf{RsyncLogLevel});
717 # In 2.1.0 the default for $Conf{CgiNavBarAdminAllHosts} is now 1
719 $Conf{CgiNavBarAdminAllHosts} = 1;
722 # IncrFill should now be off
727 # Empty $Conf{ParPath} if it isn't a valid executable
728 # (pre-3.0.0 configure.pl incorrectly set it to a
731 $Conf{ParPath} = '' if ( $Conf{ParPath} ne '' && !-x $Conf{ParPath} );
734 # Figure out sensible arguments for the ping command
736 if ( defined($Conf{PingArgs}) ) {
737 $Conf{PingCmd} = '$pingPath ' . $Conf{PingArgs};
738 } elsif ( !defined($Conf{PingCmd}) ) {
739 if ( $^O eq "solaris" || $^O eq "sunos" ) {
740 $Conf{PingCmd} = '$pingPath -s $host 56 1';
741 } elsif ( ($^O eq "linux" || $^O eq "openbsd" || $^O eq "netbsd")
742 && !system("$Conf{PingPath} -c 1 -w 3 localhost") ) {
743 $Conf{PingCmd} = '$pingPath -c 1 -w 3 $host';
745 $Conf{PingCmd} = '$pingPath -c 1 $host';
747 delete($Conf{PingArgs});
751 # Figure out sensible arguments for the df command
753 if ( !defined($Conf{DfCmd}) ) {
754 if ( $^O eq "solaris" || $^O eq "sunos" ) {
755 $Conf{DfCmd} = '$dfPath -k $topDir';
760 # $Conf{SmbClientTimeout} is now $Conf{ClientTimeout}
762 if ( defined($Conf{SmbClientTimeout}) ) {
763 $Conf{ClientTimeout} = $Conf{SmbClientTimeout};
764 delete($Conf{SmbClientTimeout});
768 # Replace --devices with -D in RsyncArgs and RsyncRestoreArgs
770 foreach my $param ( qw(RsyncArgs RsyncRestoreArgs) ) {
771 next if ( !defined($newVars->{$param}) );
772 $newConf->[$newVars->{$param}]{text} =~ s/--devices/-D/g;
776 # Merge any new user-editable parameters into CgiUserConfigEdit
777 # by copying the old settings forward.
779 if ( defined($Conf{CgiUserConfigEdit}) ) {
781 # This is a real hack. The config file merging is done in text
782 # form without actually instantiating the new conf structure.
783 # So we need to extract the new hash of settings, update it,
784 # and merge the text. Ugh...
787 my $str = $distConf->[$distVars->{CgiUserConfigEdit}]{text};
789 $str =~ s/^\s*\$Conf\{.*?\}\s*=\s*/\$new = /m;
791 foreach my $p ( keys(%$new) ) {
792 $new->{$p} = $Conf{CgiUserConfigEdit}{$p}
793 if ( defined($Conf{CgiUserConfigEdit}{$p}) );
795 $Conf{CgiUserConfigEdit} = $new;
796 my $d = Data::Dumper->new([$new], [*value]);
799 my $value = $d->Dump;
800 $value =~ s/(.*)\n/$1;\n/s;
801 $newConf->[$newVars->{CgiUserConfigEdit}]{text}
802 =~ s/(\s*\$Conf\{.*?\}\s*=\s*).*/$1$value/s;
806 # Apply any command-line configuration parameter settings
808 foreach my $param ( keys(%{$opts{"config-override"}}) ) {
809 my $val = eval { $opts{"config-override"}{$param} };
811 printf("Can't eval --config-override setting %s=%s\n",
812 $param, $opts{"config-override"}{$param});
815 if ( !defined($newVars->{$param}) ) {
816 printf("Unkown config parameter %s in --config-override\n", $param);
819 $newConf->[$newVars->{$param}]{text} = $opts{"config-override"}{$param};
823 # Now backup and write the config file
825 my $confCopy = "$dest.pre-__VERSION__";
826 if ( -f $dest && !-f $confCopy ) {
828 # Make copy of config file, preserving ownership and modes
830 printf("Making backup copy of $dest -> $confCopy\n");
831 my @stat = stat($dest);
835 die("can't copy($dest, $confCopy)\n")
836 unless copy($dest, $confCopy);
837 die("can't chown $uid, $gid $confCopy\n")
838 unless my_chown($uid, $gid, $confCopy);
839 die("can't chmod $mode $confCopy\n")
840 unless my_chmod($mode, $confCopy);
842 open(OUT, ">", $dest) || die("can't open $dest for writing\n");
845 foreach my $var ( @$newConf ) {
846 if ( length($blockComment)
847 && substr($var->{text}, 0, length($blockComment)) eq $blockComment ) {
848 $var->{text} = substr($var->{text}, length($blockComment));
849 $blockComment = undef;
851 $blockComment = $1 if ( $var->{text} =~ /^([\s\n]*#{70}.*#{70}[\s\n]+)/s );
852 $var->{text} =~ s/^\s*\$Conf\{(.*?)\}(\s*=\s*['"]?)(.*?)(['"]?\s*;)/
853 defined($Conf{$1}) && ref($Conf{$1}) eq ""
854 && $Conf{$1} ne $OrigConf{$1}
855 ? "\$Conf{$1}$2$Conf{$1}$4"
856 : "\$Conf{$1}$2$3$4"/emg;
857 print OUT $var->{text};
860 if ( !defined($oldConf) ) {
861 die("can't chmod 0640 mode $dest\n") unless my_chmod(0640, $dest);
862 die("can't chown $Uid, $Gid $dest\n") unless my_chown($Uid, $Gid, $dest);
865 if ( $Conf{CgiDir} ne "" ) {
866 printf("Installing cgi script BackupPC_Admin in $DestDir$Conf{CgiDir}\n");
867 mkpath("$DestDir$Conf{CgiDir}", 0, 0755);
868 InstallFile("cgi-bin/BackupPC_Admin", "$DestDir$Conf{CgiDir}/BackupPC_Admin",
874 Ok, it looks like we are finished. There are several more things you
877 - Browse through the config file, $Conf{ConfDir}/config.pl,
878 and make sure all the settings are correct. In particular,
879 you will need to set \$Conf{CgiAdminUsers} so you have
880 administration privileges in the CGI interface.
882 - Edit the list of hosts to backup in $Conf{ConfDir}/hosts.
884 - Read the documentation in $Conf{InstallDir}/doc/BackupPC.html.
885 Please pay special attention to the security section.
887 - Verify that the CGI script BackupPC_Admin runs correctly. You might
888 need to change the permissions or group ownership of BackupPC_Admin.
889 If this is an upgrade and you are using mod_perl, you will need
890 to restart Apache. Otherwise it will have stale code.
892 - BackupPC should be ready to start. Don't forget to run it
893 as user $Conf{BackupPCUser}! The installation also contains an
894 init.d/backuppc script that can be copied to /etc/init.d
895 so that BackupPC can auto-start on boot. This will also enable
896 administrative users to start the server from the CGI interface.
902 if ( `$Conf{PerlPath} -V` =~ /uselargefiles=undef/ ) {
905 Warning: your perl, $Conf{PerlPath}, does not support large files.
906 This means BackupPC won't be able to backup files larger than 2GB.
907 To solve this problem you should build/install a new version of perl
908 with large file support enabled. Use
910 $Conf{PerlPath} -V | egrep uselargefiles
912 to check if perl has large file support (undef means no support).
916 eval "use File::RsyncP;";
917 if ( !$@ && $File::RsyncP::VERSION < 0.68 ) {
918 print("\nWarning: you need to upgrade File::RsyncP;"
919 . " I found $File::RsyncP::VERSION and BackupPC needs 0.68\n");
924 ###########################################################################
926 ###########################################################################
930 my($prog, $dest, $mode, $binary) = @_;
932 my($uid, $gid) = ($Uid, $Gid);
936 # preserve ownership and modes of files that already exist
938 my @stat = stat($dest);
943 unlink($dest) if ( -f $dest );
945 die("can't copy($prog, $dest)\n") unless copy($prog, $dest);
947 open(PROG, $prog) || die("can't open $prog for reading\n");
948 open(OUT, ">", $dest) || die("can't open $dest for writing\n");
952 s/__INSTALLDIR__/$Conf{InstallDir}/g;
953 s/__LOGDIR__/$Conf{LogDir}/g;
954 s/__CONFDIR__/$Conf{ConfDir}/g;
955 s/__TOPDIR__/$Conf{TopDir}/g;
956 s/^(\s*my \$useFHS\s*=\s*)\d;/${1}$opts{fhs};/
957 if ( $prog =~ /Lib.pm/ );
958 s/__BACKUPPCUSER__/$Conf{BackupPCUser}/g;
959 s/__CGIDIR__/$Conf{CgiDir}/g;
960 s/__IMAGEDIR__/$Conf{CgiImageDir}/g;
961 s/__IMAGEDIRURL__/$Conf{CgiImageDirURL}/g;
962 if ( $first && /^#.*bin\/perl/ ) {
964 # Fill in correct path to perl (no taint for >= 2.0.1).
966 print OUT "#!$Conf{PerlPath}\n";
975 die("can't chown $uid, $gid $dest") unless my_chown($uid, $gid, $dest);
976 die("can't chmod $mode $dest") unless my_chmod($mode, $dest);
981 my($path, $prog) = @_;
983 if ( defined($opts{"bin-path"}{$prog}) ) {
984 return $opts{"bin-path"}{$prog};
986 foreach my $dir ( split(/:/, $path) ) {
987 my $file = File::Spec->catfile($dir, $prog);
988 return $file if ( -x $file );
996 open(C, $file) || die("can't open $file");
998 my($out, @conf, $var);
1001 my $endLine = undef;
1003 if ( /^#/ && !defined($endLine) ) {
1008 $allVars->{$var} = @conf if ( defined($var) );
1018 } elsif ( /^\s*\$Conf\{([^}]*)/ ) {
1020 if ( defined($var) ) {
1021 $allVars->{$var} = @conf if ( defined($var) );
1031 $endLine = $1 if ( /^\s*\$Conf\{[^}]*} *= *<<(.*);/ );
1032 $endLine = $1 if ( /^\s*\$Conf\{[^}]*} *= *<<'(.*)';/ );
1034 $endLine = undef if ( defined($endLine) && /^\Q$endLine[\n\r]*$/ );
1039 $allVars->{$var} = @conf if ( defined($var) );
1046 return (\@conf, $allVars);
1051 my($old, $oldVars, $new, $newVars) = @_;
1056 # Find which config parameters are not needed any longer
1058 foreach my $var ( @$old ) {
1059 next if ( !defined($var->{var}) || defined($newVars->{$var->{var}}) );
1060 #print(STDERR "Deleting old config parameter $var->{var}\n");
1064 # Find which config parameters are new
1066 foreach my $var ( @$new ) {
1067 next if ( !defined($var->{var}) );
1068 if ( defined($oldVars->{$var->{var}}) ) {
1069 $posn = $oldVars->{$var->{var}};
1071 #print(STDERR "New config parameter $var->{var}: $var->{text}\n");
1072 push(@{$old->[$posn]{new}}, $var);
1076 # Create merged config file
1078 foreach my $var ( @$old ) {
1079 next if ( $var->{delete} );
1081 foreach my $new ( @{$var->{new}} ) {
1085 for ( my $i = 0 ; $i < @$res ; $i++ ) {
1086 $resVars->{$res->[$i]{var}} = $i;
1088 return ($res, $resVars);
1093 my($uid, $gid, $file) = @_;
1095 return 1 if ( !$opts{"set-perms"} );
1096 return chown($uid, $gid, $file);
1101 my ($mode, $file) = @_;
1103 return 1 if ( !$opts{"set-perms"} );
1104 return chmod($mode, $file);
1109 my($question, $default, $option) = @_;
1111 $default = $opts{$option} if ( defined($opts{$option}) );
1112 if ( $opts{batch} ) {
1113 print("$question [$default]\n");
1116 print("$question [$default]? ");
1117 my $reply = <STDIN>;
1118 $reply =~ s/[\n\r]*//g;
1119 return $reply if ( $reply !~ /^$/ );
1127 configure.pl [options]
1131 configure.pl is a script that is used to install or upgrade a BackupPC
1132 installation. It is usually run interactively without arguments. It
1133 also supports a batch mode where all the options can be specified
1134 via the command-line.
1136 For upgrading BackupPC you need to make sure that BackupPC is not
1137 running prior to running BackupPC.
1139 Typically configure.pl needs to run as the super user (root).
1147 Run configure.pl in batch mode. configure.pl will run without
1148 prompting the user. The other command-line options are used
1149 to specify the settings that the user is usually prompted for.
1151 =item B<--backuppc-user=USER>
1153 Specify the BackupPC user name that owns all the BackupPC
1154 files and runs the BackupPC programs. Default is backuppc.
1156 =item B<--bin-path PROG=PATH>
1158 Specify the path for various external programs that BackupPC
1159 uses. Several --bin-path options may be specified. configure.pl
1160 usually finds sensible defaults based on searching the PATH.
1163 --bin-path PROG=PATH
1165 where PROG is one of perl, tar, smbclient, nmblookup, rsync, ping,
1166 df, ssh, sendmail, hostname, split, par2, cat, gzip, bzip2 and
1167 PATH is that full path to that program.
1171 --bin-path cat=/bin/cat --bin-path bzip2=/home/user/bzip2
1173 =item B<--compress-level=N>
1175 Set the configuration compression level to N. Default is 3
1176 if Compress::Zlib is installed.
1178 =item B<--config-dir CONFIG_DIR>
1180 Configuration directory for new installations. Defaults
1181 to /etc/BackupPC with FHS. Automatically extracted
1182 from --config-path for existing installations.
1184 =item B<--config-path CONFIG_PATH>
1186 Path to the existing config.pl configuration file for BackupPC.
1187 This option should be specified for batch upgrades to an
1188 existing installation. The option should be omitted when
1189 doing a batch new install.
1191 =item B<--cgi-dir CGI_DIR>
1193 Path to Apache's cgi-bin directory where the BackupPC_Admin
1194 script will be installed. This option only needs to be
1195 specified for a batch new install.
1197 =item B<--data-dir DATA_DIR>
1199 Path to the BackupPC data directory. This is where all the backup
1200 data is stored, and it should be on a large file system. This option
1201 only needs to be specified for a batch new install.
1205 --data-dir /data/BackupPC
1207 =item B<--dest-dir DEST_DIR>
1209 An optional prefix to apply to all installation directories.
1210 Usually this is not needed, but certain auto-installers like
1211 to stage an install in a temporary directory, and then copy
1212 the files to their real destination. This option can be used
1213 to specify the temporary directory prefix. Note that if you
1214 specify this option, BackupPC won't run correctly if you try
1215 to run it from below the --dest-dir directory, since all the
1216 paths are set assuming BackupPC is installed in the intended
1221 Use locations specified by the Filesystem Hierarchy Standard
1222 for installing BackupPC. This is enabled by default for new
1223 installations. To use the pre-3.0 installation locations,
1228 Print a brief help message and exits.
1230 =item B<--hostname HOSTNAME>
1232 Host name (this machine's name) on which BackupPC is being installed.
1233 This option only needs to be specified for a batch new install.
1235 =item B<--html-dir HTML_DIR>
1237 Path to an Apache html directory where various BackupPC image files
1238 and the CSS files will be installed. This is typically a directory
1239 below Apache's DocumentRoot directory. This option only needs to be
1240 specified for a batch new install.
1244 --html-dir /usr/local/apache/htdocs/BackupPC
1246 =item B<--html-dir-url URL>
1248 The URL (without http://hostname) required to access the BackupPC html
1249 directory specified with the --html-dir option. This option only needs
1250 to be specified for a batch new install.
1254 --html-dir-url /BackupPC
1256 =item B<--install-dir INSTALL_DIR>
1258 Installation directory for BackupPC scripts, libraries, and
1259 documentation. This option only needs to be specified for a
1264 --install-dir /usr/local/BackupPC
1266 =item B<--log-dir LOG_DIR>
1268 Log directory. Defaults to /var/log/BackupPC with FHS.
1272 Prints the manual page and exits.
1274 =item B<--set-perms>
1276 When installing files and creating directories, chown them to
1277 the BackupPC user and chmod them too. This is enabled by default.
1278 To disable (for example, if staging a destination directory)
1279 then specify --no-set-perms.
1281 =item B<--uid-ignore>
1283 configure.pl verifies that the script is being run as the super user
1284 (root). Without the --uid-ignore option, in batch mode the script will
1285 exit with an error if not run as the super user, and in interactive mode
1286 the user will be prompted. Specifying this option will cause the script
1287 to continue even if the user id is not root.
1291 For a standard interactive install, run without arguments:
1295 For a batch new install you need to specify answers to all the
1296 questions that are normally prompted:
1300 --cgi-dir /var/www/cgi-bin/BackupPC \
1301 --data-dir /data/BackupPC \
1303 --html-dir /var/www/html/BackupPC \
1304 --html-dir-url /BackupPC \
1305 --install-dir /usr/local/BackupPC
1307 For a batch upgrade, you only need to specify the path to the
1310 configure.pl --batch --config-path /data/BackupPC/conf/config.pl
1314 Craig Barratt <cbarratt@users.sourceforge.net>
1318 Copyright (C) 2001-2007 Craig Barratt.
1320 This program is free software; you can redistribute it and/or modify
1321 it under the terms of the GNU General Public License as published by
1322 the Free Software Foundation; either version 2 of the License, or
1323 (at your option) any later version.