2 #============================================================= -*-perl-*-
4 # configure.pl: Configuration and installation program for BackupPC
8 # This script should be run as root:
12 # The installation steps are described as the script runs.
15 # Craig Barratt <cbarratt@users.sourceforge.net>
18 # Copyright (C) 2001 Craig Barratt
20 # This program is free software; you can redistribute it and/or modify
21 # it under the terms of the GNU General Public License as published by
22 # the Free Software Foundation; either version 2 of the License, or
23 # (at your option) any later version.
25 # This program is distributed in the hope that it will be useful,
26 # but WITHOUT ANY WARRANTY; without even the implied warranty of
27 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 # GNU General Public License for more details.
30 # You should have received a copy of the GNU General Public License
31 # along with this program; if not, write to the Free Software
32 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
34 #========================================================================
36 # Version 1.5.0, released 2 Aug 2002.
38 # See http://backuppc.sourceforge.net.
40 #========================================================================
43 use vars qw(%Conf %OrigConf);
46 my @Packages = qw(ExtUtils::MakeMaker File::Path File::Spec File::Copy
47 DirHandle Digest::MD5 Data::Dumper Getopt::Std
48 BackupPC::Lib BackupPC::FileZIO);
50 foreach my $pkg ( @Packages ) {
55 BackupPC needs the package $pkg. Please install $pkg
56 before installing BackupPC.
64 This configure script should be run as root, rather than uid $<.
65 Provided uid $< has sufficient permissions to create the data and
66 install directories, then it should be ok to proceed. Otherwise,
67 please quit and restart as root.
70 exit unless prompt("--> Do you want to continue?", "y") =~ /y/i;
75 Is this a new installation or upgrade for BackupPC? If this is
76 an upgrade please tell me the full path of the existing BackupPC
77 configuration file (eg: /xxxx/conf/config.pl). Otherwise, just
83 # Check if this is an upgrade, in which case read the existing
84 # config file to get all the defaults.
88 $ConfigPath = prompt("--> Full path to existing conf/config.pl",
90 last if ( $ConfigPath eq ""
91 || ($ConfigPath =~ /^\// && -r $ConfigPath && -w $ConfigPath) );
92 my $problem = "is not an absolute path";
93 $problem = "is no writable" if ( !-w $ConfigPath );
94 $problem = "is not readable" if ( !-r $ConfigPath );
95 $problem = "doesn't exist" if ( !-f $ConfigPath );
96 print("The file '$ConfigPath' $problem.\n");
99 if ( $ConfigPath ne "" && -r $ConfigPath ) {
100 (my $topDir = $ConfigPath) =~ s{/[^/]+/[^/]+$}{};
101 die("BackupPC::Lib->new failed\n")
102 if ( !($bpc = BackupPC::Lib->new($topDir)) );
103 %Conf = $bpc->Conf();
105 $Conf{TopDir} = $topDir;
106 my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort}, 1);
110 BackupPC is running on $Conf{ServerHost}. You need to stop BackupPC
111 before you can upgrade the code. Depending upon your installation,
112 you could run "/etc/init.d/backuppc stop".
120 # These are the programs whose paths we need to find
124 'gtar/tar' => "TarClientPath",
125 smbclient => "SmbClientPath",
126 nmblookup => "NmbLookupPath",
129 'ssh2/ssh' => "SshPath",
130 sendmail => "SendmailPath",
131 hostname => "HostnamePath",
134 foreach my $prog ( sort(keys(%Programs)) ) {
136 foreach my $subProg ( split(/\//, $prog) ) {
137 $path ||= FindProgram("$ENV{PATH}:/bin:/usr/bin:/sbin:/usr/sbin",
140 $Conf{$Programs{$prog}} ||= $path;
146 I found the following locations for these programs:
149 foreach my $prog ( sort(keys(%Programs)) ) {
150 printf(" %-11s => %s\n", $prog, $Conf{$Programs{$prog}});
153 last if (prompt('--> Are these paths correct?', 'y') =~ /^y/i);
154 foreach my $prog ( sort(keys(%Programs)) ) {
155 $Conf{$Programs{$prog}} = prompt("--> $prog path",
156 $Conf{$Programs{$prog}});
160 my $Perl56 = system($Conf{PerlPath}
161 . q{ -e 'exit($^V && $^V ge v5.6.0 ? 1 : 0);'});
166 BackupPC needs perl version 5.6.0 or later. $Conf{PerlPath} appears
167 to be an older version. Please upgrade to a newer version of perl
168 and re-run this configure script.
176 Please tell me the hostname of the machine that BackupPC will run on.
179 chomp($Conf{ServerHost} = `$Conf{HostnamePath}`)
180 if ( defined($Conf{HostnamePath}) && !defined($Conf{ServerHost}) );
181 $Conf{ServerHost} = prompt("--> BackupPC will run on host", $Conf{ServerHost});
185 BackupPC should run as a dedicated user with limited privileges. You
186 need to create a user. This user will need read/write permission on
187 the main data directory and read/execute permission on the install
188 directory (these directories will be setup shortly).
190 The primary group for this user should also be chosen carefully.
191 By default the install directories will have group write permission.
192 The data directories and files will have group read permission but
196 my($name, $passwd, $Uid, $Gid);
198 $Conf{BackupPCUser} = prompt("--> BackupPC should run as user",
199 $Conf{BackupPCUser} || "backuppc");
200 ($name, $passwd, $Uid, $Gid) = getpwnam($Conf{BackupPCUser});
201 last if ( $name ne "" );
204 getpwnam() says that user $Conf{BackupPCUser} doesn't exist. Please check the
205 name and verify that this user is in the passwd file.
212 Please specify an install directory for BackupPC. This is where the
213 BackupPC scripts, library and documentation will be installed.
218 $Conf{InstallDir} = prompt("--> Install directory (full path)",
220 last if ( $Conf{InstallDir} =~ /^\// );
225 Please specify a data directory for BackupPC. This is where the
226 configuration files, LOG files and all the PC backups are stored.
227 This file system needs to be big enough to accommodate all the
228 PCs you expect to backup (eg: at least 1-2GB per machine).
233 $Conf{TopDir} = prompt("--> Data directory (full path)", $Conf{TopDir});
234 last if ( $Conf{TopDir} =~ /^\// );
237 if ( !defined($Conf{CompressLevel}) ) {
238 $Conf{CompressLevel} = BackupPC::FileZIO->compOk ? 3 : 0;
239 if ( $ConfigPath eq "" && $Conf{CompressLevel} ) {
242 BackupPC can compress pool files, providing around a 40% reduction in pool
243 size (your mileage may vary). Specify the compression level (0 turns
244 off compression, and 1 to 9 represent good/fastest to best/slowest).
245 The recommended values are 0 (off) or 3 (reasonable compression and speed).
246 Increasing the compression level to 5 will use around 20% more cpu time
247 and give perhaps 2-3% more compression.
250 } elsif ( $ConfigPath eq "" ) {
253 BackupPC can compress pool files, but it needs the Compress::Zlib
254 package installed (see www.cpan.org). Compression will provide around a
255 40% reduction in pool size, at the expense of cpu time. You can leave
256 compression off and run BackupPC without compression, in which case you
257 should leave the compression level at 0 (which means off). You could
258 install Compress::Zlib and turn compression on later, but read the
259 documentation first about how to do this. Or the better choice is
260 to quit, install Compress::Zlib, and re-run configure.pl.
263 } elsif ( $Conf{CompressLevel} ) {
264 $Conf{CompressLevel} = 0;
267 BackupPC now supports pool file compression. Since you are upgrading
268 BackupPC you probably have existing uncompressed backups. You have
269 several choices if you want to turn on compression. You can run
270 the script BackupPC_compressPool to convert everything to compressed
271 form. Or you can simply turn on compression, so that new backups
272 will be compressed. This will increase the pool storage requirement,
273 since both uncompressed and compressed copies of files will be stored.
274 But eventually the old uncompressed backups will expire, recovering
275 the pool storage. Please see the documentation for more details.
277 If you are not sure what to do, leave the Compression Level at 0,
278 which disables compression. You can always read the documentation
279 and turn it on later.
283 $Conf{CompressLevel} = 0;
286 BackupPC now supports pool file compression, but it needs the
287 Compress::Zlib module (see www.cpan.org). For now, leave
288 the compression level set at 0 to disable compression. If you
289 want you can install Compress::Zlib and turn compression on.
290 Please see the documentation for more details about converting
291 old backups to compressed form.
297 = prompt("--> Compression level", $Conf{CompressLevel});
298 last if ( $Conf{CompressLevel} =~ /^\d+$/ );
304 BackupPC has a powerful CGI perl interface that runs under Apache.
305 A single executable needs to be installed in a cgi-bin directory.
306 This executable needs to run as set-uid $Conf{BackupPCUser}, or
307 it can be run under mod_perl with Apache running as user $Conf{BackupPCUser}.
309 Leave this path empty if you don't want to install the CGI interface.
314 $Conf{CgiDir} = prompt("--> CGI bin directory (full path)", $Conf{CgiDir});
315 last if ( $Conf{CgiDir} =~ /^\// || $Conf{CgiDir} eq "" );
318 if ( $Conf{CgiDir} ne "" ) {
322 BackupPC's CGI script needs to display various GIF images that
323 should be stored where Apache can serve them. They should be
324 placed somewher under Apache's DocumentRoot. BackupPC also
325 needs to know the URL to access these images. Example:
327 Apache image directory: /usr/local/apache/htdocs/BackupPC
328 URL for image directory: /BackupPC
332 $Conf{CgiImageDir} = prompt("--> Apache image directory (full path)",
334 last if ( $Conf{CgiImageDir} =~ /^\// );
337 $Conf{CgiImageDirURL} = prompt("--> URL for image directory (omit http://host)",
338 $Conf{CgiImageDirURL});
339 last if ( $Conf{CgiImageDirURL} ne "" );
347 - install the binaries, lib and docs in $Conf{InstallDir},
348 - create the data directory $Conf{TopDir},
349 - create/update the config.pl file $Conf{TopDir}/conf,
350 - optionally install the cgi-bin interface.
354 exit unless prompt("--> Do you want to continue?", "y") =~ /y/i;
357 # Create install directories
359 foreach my $dir ( qw(bin lib/BackupPC/Xfer lib/BackupPC/Zip doc) ) {
360 next if ( -d "$Conf{InstallDir}/$dir" );
361 mkpath("$Conf{InstallDir}/$dir", 0, 0775);
362 if ( !-d "$Conf{InstallDir}/$dir"
363 || !chown($Uid, $Gid, "$Conf{InstallDir}/$dir") ) {
364 die("Failed to create or chown $Conf{InstallDir}/$dir\n");
366 print("Created $Conf{InstallDir}/$dir\n");
371 # Create CGI image directory
373 foreach my $dir ( ($Conf{CgiImageDir}) ) {
374 next if ( $dir eq "" || -d $dir );
375 mkpath($dir, 0, 0775);
376 if ( !-d $dir || !chown($Uid, $Gid, $dir) ) {
377 die("Failed to create or chown $dir");
379 print("Created $dir\n");
384 # Create $TopDir's top-level directories
386 foreach my $dir ( qw(. conf pool cpool pc trash log) ) {
387 mkpath("$Conf{TopDir}/$dir", 0, 0750) if ( !-d "$Conf{TopDir}/$dir" );
388 if ( !-d "$Conf{TopDir}/$dir"
389 || !chown($Uid, $Gid, "$Conf{TopDir}/$dir") ) {
390 die("Failed to create or chown $Conf{TopDir}/$dir\n");
392 print("Created $Conf{TopDir}/$dir\n");
396 printf("Installing binaries in $Conf{InstallDir}/bin\n");
397 foreach my $prog ( qw(BackupPC BackupPC_dump BackupPC_link BackupPC_nightly
398 BackupPC_sendEmail BackupPC_tarCreate BackupPC_trashClean
399 BackupPC_tarExtract BackupPC_compressPool BackupPC_zcat
400 BackupPC_restore BackupPC_serverMesg BackupPC_zipCreate ) ) {
401 InstallFile("bin/$prog", "$Conf{InstallDir}/bin/$prog", 0555);
405 # Remove unused binaries from older versions
407 unlink("$Conf{InstallDir}/bin/BackupPC_queueAll");
409 printf("Installing library in $Conf{InstallDir}/lib\n");
410 foreach my $lib ( qw(BackupPC/Lib.pm BackupPC/FileZIO.pm BackupPC/Attrib.pm
411 BackupPC/PoolWrite.pm BackupPC/Xfer/Tar.pm BackupPC/Xfer/Smb.pm
412 BackupPC/Zip/FileMember.pm) ) {
413 InstallFile("lib/$lib", "$Conf{InstallDir}/lib/$lib", 0444);
416 if ( $Conf{CgiImageDir} ne "" ) {
417 printf("Installing images in $Conf{CgiImageDir}\n");
418 foreach my $img ( <images/*> ) {
419 (my $destImg = $img) =~ s{^images/}{};
420 InstallFile($img, "$Conf{CgiImageDir}/$destImg", 0444, 1);
424 printf("Making init.d scripts\n");
425 foreach my $init ( qw(linux-backuppc solaris-backuppc) ) {
426 InstallFile("init.d/src/$init", "init.d/$init", 0444);
429 printf("Installing docs in $Conf{InstallDir}/doc\n");
430 foreach my $doc ( qw(BackupPC.pod BackupPC.html) ) {
431 InstallFile("doc/$doc", "$Conf{InstallDir}/doc/$doc", 0444);
434 printf("Installing config.pl and hosts in $Conf{TopDir}/conf\n");
435 InstallFile("conf/hosts", "$Conf{TopDir}/conf/hosts", 0644)
436 if ( !-f "$Conf{TopDir}/conf/hosts" );
439 # Now do the config file. If there is an existing config file we
440 # merge in the new config file, adding any new configuration
441 # parameters and deleting ones that are no longer needed.
443 my $dest = "$Conf{TopDir}/conf/config.pl";
444 my ($newConf, $newVars) = ConfigParse("conf/config.pl");
445 my ($oldConf, $oldVars);
447 ($oldConf, $oldVars) = ConfigParse($dest);
448 $newConf = ConfigMerge($oldConf, $oldVars, $newConf, $newVars);
450 $Conf{EMailFromUserName} ||= $Conf{BackupPCUser};
451 $Conf{EMailAdminUserName} ||= $Conf{BackupPCUser};
453 # IncrFill should now be off
457 # Figure out sensible arguments for the ping command
459 if ( $^O eq "solaris" || $^O eq "sunos" ) {
460 $Conf{PingArgs} ||= '-s $host 56 1';
461 } elsif ( $^O eq "linux" || $^O eq "openbsd" || $^O eq "netbsd" ) {
462 $Conf{PingArgs} ||= '-c 1 -w 3 $host';
464 $Conf{PingArgs} ||= '-c 1 $host';
467 my $confCopy = "$dest.pre-1.4.0.b1";
468 if ( -f $dest && !-f $confCopy ) {
470 # Make copy of config file, preserving ownership and modes
472 printf("Making backup copy of $dest -> $confCopy\n");
473 my @stat = stat($dest);
477 die("can't copy($dest, $confCopy)\n") unless copy($dest, $confCopy);
478 die("can't chown $uid, $gid $confCopy\n")
479 unless chown($uid, $gid, $confCopy);
480 die("can't chmod $mode $confCopy\n") unless chmod($mode, $confCopy);
482 open(OUT, ">$dest") || die("can't open $dest for writing\n");
484 foreach my $var ( @$newConf ) {
485 if ( length($blockComment)
486 && substr($var->{text}, 0, length($blockComment)) eq $blockComment ) {
487 $var->{text} = substr($var->{text}, length($blockComment));
488 $blockComment = undef;
490 $blockComment = $1 if ( $var->{text} =~ /^([\s\n]*#{70}.*#{70}[\s\n]+)/s );
491 $var->{text} =~ s/^\s*\$Conf\{(.*?)\}(\s*=\s*['"]?)(.*?)(['"]?\s*;)/
492 defined($Conf{$1}) && ref($Conf{$1}) eq ""
493 && $Conf{$1} ne $OrigConf{$1}
494 ? "\$Conf{$1}$2$Conf{$1}$4"
495 : "\$Conf{$1}$2$3$4"/emg;
496 print OUT $var->{text};
499 if ( !defined($oldConf) ) {
500 die("can't chmod 0640 mode $dest\n") unless chmod(0640, $dest);
501 die("can't chown $Uid, $Gid $dest\n") unless chown($Uid, $Gid, $dest);
504 if ( $Conf{CgiDir} ne "" ) {
505 printf("Installing cgi script BackupPC_Admin in $Conf{CgiDir}\n");
506 mkpath("$Conf{CgiDir}", 0, 0755);
507 InstallFile("cgi-bin/BackupPC_Admin", "$Conf{CgiDir}/BackupPC_Admin",
513 Ok, it looks we are finished. There are several more things you
516 - Browse through the config file, $Conf{TopDir}/conf/config.pl,
517 and make sure all the settings are correct. In particular, you
518 will need to set the smb share password and user name, backup
519 policies and check the email message headers and bodies.
521 - Edit the list of hosts to backup in $Conf{TopDir}/conf/hosts.
523 - Read the documentation in $Conf{InstallDir}/doc/BackupPC.html.
524 Please pay special attention to the security section.
526 - Verify that the CGI script BackupPC_Admin runs correctly. You might
527 need to change the permissions or group ownership of BackupPC_Admin.
529 - BackupPC should be ready to start. Don't forget to run it
530 as user $Conf{BackupPCUser}! The installation also contains an
531 init.d/backuppc script that can be copied to /etc/init.d
532 so that BackupPC can auto-start on boot. See init.d/README.
537 ###########################################################################
539 ###########################################################################
543 my($prog, $dest, $mode, $binary) = @_;
545 my($uid, $gid) = ($Uid, $Gid);
549 # preserve ownership and modes of files that already exist
551 my @stat = stat($dest);
556 unlink($dest) if ( -f $dest );
558 die("can't copy($prog, $dest)\n") unless copy($prog, $dest);
560 open(PROG, $prog) || die("can't open $prog for reading\n");
561 open(OUT, ">$dest") || die("can't open $dest for writing\n");
563 s/__INSTALLDIR__/$Conf{InstallDir}/g;
564 s/__TOPDIR__/$Conf{TopDir}/g;
565 s/__BACKUPPCUSER__/$Conf{BackupPCUser}/g;
566 s/__CGIDIR__/$Conf{CgiDir}/g;
567 if ( $first && /^#.*bin\/perl/ ) {
570 # perl56 and later is taint ok
572 print OUT "#!$Conf{PerlPath} -T\n";
575 # prior to perl56, File::Find fails taint checks,
576 # so we run without -T. It's still safe.
578 print OUT "#!$Conf{PerlPath}\n";
588 die("can't chown $uid, $gid $dest") unless chown($uid, $gid, $dest);
589 die("can't chmod $mode $dest") unless chmod($mode, $dest);
594 my($path, $prog) = @_;
595 foreach my $dir ( split(/:/, $path) ) {
596 my $file = File::Spec->catfile($dir, $prog);
597 return $file if ( -x $file );
604 open(C, $file) || die("can't open $file");
605 my($out, @conf, $var);
614 $allVars->{$var} = @conf if ( defined($var) );
624 } elsif ( /^\s*\$Conf\{([^}]*)/ ) {
626 if ( defined($var) ) {
627 $allVars->{$var} = @conf if ( defined($var) );
642 $allVars->{$var} = @conf if ( defined($var) );
649 return (\@conf, $allVars);
654 my($old, $oldVars, $new, $newVars) = @_;
659 # Find which config parameters are not needed any longer
661 foreach my $var ( @$old ) {
662 next if ( !defined($var->{var}) || defined($newVars->{$var->{var}}) );
663 #print(STDERR "Deleting old config parameter $var->{var}\n");
667 # Find which config parameters are new
669 foreach my $var ( @$new ) {
670 next if ( !defined($var->{var}) );
671 if ( defined($oldVars->{$var->{var}}) ) {
672 $posn = $oldVars->{$var->{var}};
674 #print(STDERR "New config parameter $var->{var}: $var->{text}\n");
675 push(@{$old->[$posn]{new}}, $var);
679 # Create merged config file
681 foreach my $var ( @$old ) {
682 next if ( $var->{delete} );
684 foreach my $new ( @{$var->{new}} ) {