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configure.pl
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configure.pl
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#!/usr/bin/env perl
#============================================================= -*-perl-*-
#
# configure.pl: Configuration and installation program for BackupPC
#
# DESCRIPTION
#
# This script should be run as root:
#
# perl configure.pl
#
# To read about the command-line options for this configure script:
#
# perldoc configure.pl
#
# The installation steps are described as the script runs.
#
# AUTHOR
# Craig Barratt <cbarratt@users.sourceforge.net>
#
# COPYRIGHT
# Copyright (C) 2001-2015 Craig Barratt
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#========================================================================
#
# Version 3.3.1, released 11 Jan 2015.
#
# See http://backuppc.sourceforge.net.
#
#========================================================================
use strict;
no utf8;
use vars qw(%Conf %OrigConf);
use lib "./lib";
use Encode;
my $EncodeVersion = eval($Encode::VERSION);
if ( $EncodeVersion < 1.99 ) {
print("Error: you need to upgrade perl's Encode package.\n"
. "I found $EncodeVersion and BackupPC needs >= 1.99\n"
. "Please go to www.cpan.org or use the cpan command.\n");
exit(1);
}
my @Packages = qw(File::Path File::Spec File::Copy DirHandle Digest::MD5
Data::Dumper Getopt::Std Getopt::Long Pod::Usage
BackupPC::Lib BackupPC::FileZIO);
foreach my $pkg ( @Packages ) {
eval "use $pkg";
next if ( !$@ );
if ( $pkg =~ /BackupPC/ ) {
die <<EOF;
Error loading $pkg: $@
BackupPC cannot load the package $pkg, which is included in the
BackupPC distribution. This probably means you did not cd to the
unpacked BackupPC distribution before running configure.pl, eg:
cd BackupPC-3.3.1
./configure.pl
Please try again.
EOF
}
die <<EOF;
BackupPC needs the package $pkg. Please install $pkg
before installing BackupPC.
EOF
}
my %opts;
$opts{"set-perms"} = 1;
if ( !GetOptions(
\%opts,
"batch",
"backuppc-user=s",
"bin-path=s%",
"cgi-dir=s",
"compress-level=i",
"config-path=s",
"config-override=s%",
"config-dir=s",
"data-dir=s",
"dest-dir=s",
"fhs!",
"help|?",
"hostname=s",
"html-dir=s",
"html-dir-url=s",
"install-dir=s",
"log-dir=s",
"man",
"set-perms!",
"uid-ignore!",
) || @ARGV ) {
pod2usage(2);
}
pod2usage(1) if ( $opts{help} );
pod2usage(-exitstatus => 0, -verbose => 2) if $opts{man};
my $DestDir = $opts{"dest-dir"};
$DestDir = "" if ( $DestDir eq "/" );
if ( !$opts{"uid-ignore"} && $< != 0 ) {
print <<EOF;
This configure script should be run as root, rather than uid $<.
Provided uid $< has sufficient permissions to create the data and
install directories, then it should be ok to proceed. Otherwise,
please quit and restart as root.
EOF
exit(1) if ( prompt("--> Do you want to continue?",
"y") !~ /y/i );
exit(1) if ( $opts{batch} && !$opts{"uid-ignore"} );
}
#
# Whether we use the file system hierarchy conventions or not.
# Older versions did not. BackupPC used to be installed in
# two main directories (in addition to CGI and html pages)
#
# TopDir which includes subdirs conf, log, pc, pool, cpool
#
# InstallDir which includes subdirs bin, lib, doc
#
# With FHS enabled (which is the default for new installations)
# the config files move to /etc/BackupPC and log files to /var/log:
#
# /etc/BackupPC/config.pl main config file (was $TopDir/conf/config.pl)
# /etc/BackupPC/hosts hosts file (was $TopDir/conf/hosts)
# /etc/BackupPC/pc/HOST.pl per-pc config file (was $TopDir/pc/HOST/config.pl)
# /var/log/BackupPC log files (was $TopDir/log)
# /var/log/BackupPC Pid, status and email info (was $TopDir/log)
#
#
# Check if this is an upgrade, in which case read the existing
# config file to get all the defaults.
#
my $ConfigPath = "";
my $ConfigFileOK = 1;
while ( 1 ) {
if ( $ConfigFileOK && -f "/etc/BackupPC/config.pl"
&& (!defined($opts{fhs}) || $opts{fhs}) && !defined($opts{"config-path"}) ) {
$ConfigPath = "/etc/BackupPC/config.pl";
$opts{fhs} = 1 if ( !defined($opts{fhs}) );
print <<EOF;
Found /etc/BackupPC/config.pl, so this is an upgrade of an
existing BackupPC installation. We will verify some existing
information, but you will probably not need to make any
changes - just hit ENTER to each question.
EOF
} else {
print <<EOF;
Is this a new installation or upgrade for BackupPC? If this is
an upgrade please tell me the full path of the existing BackupPC
configuration file (eg: /etc/BackupPC/config.pl). Otherwise, just
hit return.
EOF
$ConfigPath = prompt("--> Full path to existing main config.pl",
$ConfigPath,
"config-path");
}
last if ( $ConfigPath eq ""
|| ($ConfigPath =~ /^\// && -f $ConfigPath && -w $ConfigPath) );
my $problem = "is not an absolute path";
$problem = "is not writable" if ( !-w $ConfigPath );
$problem = "is not readable" if ( !-r $ConfigPath );
$problem = "is not a regular file" if ( !-f $ConfigPath );
$problem = "doesn't exist" if ( !-e $ConfigPath );
print("The file '$ConfigPath' $problem.\n");
if ( $opts{batch} ) {
print("Need to specify a valid --config-path for upgrade\n");
exit(1);
}
$ConfigFileOK = 0;
}
$opts{fhs} = 1 if ( !defined($opts{fhs}) && $ConfigPath eq "" );
$opts{fhs} = 0 if ( !defined($opts{fhs}) );
my $bpc;
if ( $ConfigPath ne "" && -r $ConfigPath ) {
(my $confDir = $ConfigPath) =~ s{/[^/]+$}{};
die("BackupPC::Lib->new failed\n")
if ( !($bpc = BackupPC::Lib->new(".", ".", $confDir, 1)) );
%Conf = $bpc->Conf();
%OrigConf = %Conf;
if ( !$opts{fhs} ) {
($Conf{TopDir} = $ConfigPath) =~ s{/[^/]+/[^/]+$}{}
if ( $Conf{TopDir} eq '' );
$bpc->{LogDir} = $Conf{LogDir} = "$Conf{TopDir}/log"
if ( $Conf{LogDir} eq '' );
}
$bpc->{ConfDir} = $Conf{ConfDir} = $confDir;
my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort}, 1);
if ( $err eq "" ) {
print <<EOF;
BackupPC is running on $Conf{ServerHost}. You need to stop BackupPC
before you can upgrade the code. Depending upon your installation,
you could run "/etc/init.d/backuppc stop".
EOF
exit(1);
}
}
#
# Create defaults for FHS setup
#
if ( $opts{fhs} ) {
$Conf{TopDir} ||= $opts{"data-dir"} || "/data/BackupPC";
$Conf{ConfDir} ||= $opts{"config-dir"} || "/etc/BackupPC";
$Conf{InstallDir} ||= $opts{"install-dir"} || "/usr/local/BackupPC";
$Conf{LogDir} ||= $opts{"log-dir"} || "/var/log/BackupPC";
} else {
$Conf{TopDir} ||= $opts{"data-dir"} || "/data/BackupPC";
$Conf{ConfDir} ||= $opts{"config-dir"} || "$Conf{TopDir}/conf";
$Conf{InstallDir} ||= $opts{"install-dir"} || "/usr/local/BackupPC";
$Conf{LogDir} ||= $opts{"log-dir"} || "$Conf{TopDir}/log";
}
$Conf{ConfDir} = "/etc/backuppc";
#
# These are the programs whose paths we need to find
#
my %Programs = (
perl => "PerlPath",
'gtar/tar' => "TarClientPath",
smbclient => "SmbClientPath",
nmblookup => "NmbLookupPath",
rsync => "RsyncClientPath",
ping => "PingPath",
df => "DfPath",
'ssh/ssh2' => "SshPath",
sendmail => "SendmailPath",
hostname => "HostnamePath",
split => "SplitPath",
par2 => "ParPath",
cat => "CatPath",
gzip => "GzipPath",
bzip2 => "Bzip2Path",
);
foreach my $prog ( sort(keys(%Programs)) ) {
my $path;
foreach my $subProg ( split(/\//, $prog) ) {
$path = FindProgram("$ENV{PATH}:/usr/bin:/bin:/sbin:/usr/sbin",
$subProg) if ( !length($path) );
}
$Conf{$Programs{$prog}} = $path if ( !length($Conf{$Programs{$prog}}) );
}
while ( 1 ) {
print <<EOF;
I found the following locations for these programs:
EOF
foreach my $prog ( sort(keys(%Programs)) ) {
printf(" %-12s => %s\n", $prog, $Conf{$Programs{$prog}});
}
print "\n";
last if (prompt('--> Are these paths correct?', 'y') =~ /^y/i);
foreach my $prog ( sort(keys(%Programs)) ) {
$Conf{$Programs{$prog}} = prompt("--> $prog path",
$Conf{$Programs{$prog}});
}
}
my $Perl58 = system($Conf{PerlPath}
. q{ -e 'exit($^V && $^V ge v5.8.0 ? 1 : 0);'});
if ( !$Perl58 ) {
print <<EOF;
BackupPC needs perl version 5.8.0 or later. $Conf{PerlPath} appears
to be an older version. Please upgrade to a newer version of perl
and re-run this configure script.
EOF
exit(1);
}
print <<EOF;
Please tell me the hostname of the machine that BackupPC will run on.
EOF
chomp($Conf{ServerHost} = `$Conf{HostnamePath}`)
if ( defined($Conf{HostnamePath}) && !defined($Conf{ServerHost}) );
$Conf{ServerHost} = prompt("--> BackupPC will run on host",
$Conf{ServerHost},
"hostname");
print <<EOF;
BackupPC should run as a dedicated user with limited privileges. You
need to create a user. This user will need read/write permission on
the main data directory and read/execute permission on the install
directory (these directories will be setup shortly).
The primary group for this user should also be chosen carefully.
The data directories and files will have group read permission,
so group members can access backup files.
EOF
my($name, $passwd, $Uid, $Gid);
while ( 1 ) {
$Conf{BackupPCUser} = prompt("--> BackupPC should run as user",
$Conf{BackupPCUser} || "backuppc",
"backuppc-user");
if ( $opts{"set-perms"} ) {
#($name, $passwd, $Uid, $Gid) = getpwnam($Conf{BackupPCUser});
$name = "backuppc";
$Uid = 0;
$Gid = 0;
last if ( $name ne "" );
print <<EOF;
getpwnam() says that user $Conf{BackupPCUser} doesn't exist. Please
check the name and verify that this user is in the passwd file.
EOF
exit(1) if ( $opts{batch} );
} else {
last;
}
}
print <<EOF;
Please specify an install directory for BackupPC. This is where the
BackupPC scripts, library and documentation will be installed.
EOF
while ( 1 ) {
$Conf{InstallDir} = prompt("--> Install directory (full path)",
$Conf{InstallDir},
"install-dir");
last if ( $Conf{InstallDir} =~ /^\// );
if ( $opts{batch} ) {
print("Need to specify --install-dir for new installation\n");
exit(1);
}
}
print <<EOF;
Please specify a data directory for BackupPC. This is where all the
PC backup data is stored. This file system needs to be big enough to
accommodate all the PCs you expect to backup (eg: at least several GB
per machine).
EOF
while ( 1 ) {
$Conf{TopDir} = prompt("--> Data directory (full path)",
$Conf{TopDir},
"data-dir");
last if ( $Conf{TopDir} =~ /^\// );
if ( $opts{batch} ) {
print("Need to specify --data-dir for new installation\n");
exit(1);
}
}
$Conf{CompressLevel} = $opts{"compress-level"}
if ( defined($opts{"compress-level"}) );
if ( !defined($Conf{CompressLevel}) ) {
$Conf{CompressLevel} = BackupPC::FileZIO->compOk ? 3 : 0;
if ( $ConfigPath eq "" && $Conf{CompressLevel} ) {
print <<EOF;
BackupPC can compress pool files, providing around a 40% reduction in pool
size (your mileage may vary). Specify the compression level (0 turns
off compression, and 1 to 9 represent good/fastest to best/slowest).
The recommended values are 0 (off) or 3 (reasonable compression and speed).
Increasing the compression level to 5 will use around 20% more cpu time
and give perhaps 2-3% more compression.
EOF
} elsif ( $ConfigPath eq "" ) {
print <<EOF;
BackupPC can compress pool files, but it needs the Compress::Zlib
package installed (see www.cpan.org). Compression will provide around a
40% reduction in pool size, at the expense of cpu time. You can leave
compression off and run BackupPC without compression, in which case you
should leave the compression level at 0 (which means off). Or the better
choice is to quit, install Compress::Zlib, and re-run configure.pl.
EOF
} elsif ( $Conf{CompressLevel} ) {
$Conf{CompressLevel} = 0;
print <<EOF;
BackupPC now supports pool file compression. Since you are upgrading
BackupPC you probably have existing uncompressed backups. You could
turn on compression, so that new backups will be compressed. This
will increase the pool storage requirement, since both uncompressed
and compressed copies of files will be stored. But eventually the old
uncompressed backups will expire, recovering the pool storage. Please
see the documentation for more details.
If you are not sure what to do, leave the Compression Level at 0,
which disables compression. You can always read the documentation
and turn it on later.
EOF
} else {
$Conf{CompressLevel} = 0;
print <<EOF;
BackupPC now supports pool file compression, but it needs the
Compress::Zlib module (see www.cpan.org). For now, leave
the compression level set at 0 to disable compression. If you
want you can install Compress::Zlib and turn compression on.
EOF
}
while ( 1 ) {
$Conf{CompressLevel}
= prompt("--> Compression level", $Conf{CompressLevel});
last if ( $Conf{CompressLevel} =~ /^\d+$/ );
}
}
print <<EOF;
BackupPC has a powerful CGI perl interface that runs under Apache.
A single executable needs to be installed in a cgi-bin directory.
This executable needs to run as set-uid $Conf{BackupPCUser}, or
it can be run under mod_perl with Apache running as user $Conf{BackupPCUser}.
Leave this path empty if you don't want to install the CGI interface.
EOF
while ( 1 ) {
$Conf{CgiDir} = prompt("--> CGI bin directory (full path)",
$Conf{CgiDir},
"cgi-dir");
last if ( $Conf{CgiDir} =~ /^\// || $Conf{CgiDir} eq "" );
if ( $opts{batch} ) {
print("Need to specify --cgi-dir for new installation\n");
exit(1);
}
}
if ( $Conf{CgiDir} ne "" ) {
print <<EOF;
BackupPC's CGI script needs to display various PNG/GIF images that
should be stored where Apache can serve them. They should be placed
somewhere under Apache's DocumentRoot. BackupPC also needs to know
the URL to access these images. Example:
Apache image directory: /var/www/htdocs/BackupPC
URL for image directory: /BackupPC
The URL for the image directory should start with a slash.
EOF
while ( 1 ) {
$Conf{CgiImageDir} = prompt("--> Apache image directory (full path)",
$Conf{CgiImageDir},
"html-dir");
last if ( $Conf{CgiImageDir} =~ /^\// );
if ( $opts{batch} ) {
print("Need to specify --html-dir for new installation\n");
exit(1);
}
}
while ( 1 ) {
$Conf{CgiImageDirURL} = prompt("--> URL for image directory (omit http://host; starts with '/')",
$Conf{CgiImageDirURL},
"html-dir-url");
last if ( $Conf{CgiImageDirURL} =~ /^\// );
if ( $opts{batch} ) {
print("Need to specify --html-dir-url for new installation\n");
exit(1);
}
}
}
print <<EOF;
Ok, we're about to:
- install the binaries, lib and docs in $Conf{InstallDir},
- create the data directory $Conf{TopDir},
- create/update the config.pl file $Conf{ConfDir}/config.pl,
- optionally install the cgi-bin interface.
EOF
exit unless prompt("--> Do you want to continue?", "y") =~ /y/i;
#
# Create install directories
#
foreach my $dir ( qw(bin doc
lib/BackupPC/CGI
lib/BackupPC/Config
lib/BackupPC/Lang
lib/BackupPC/Storage
lib/BackupPC/Xfer
lib/BackupPC/Zip
lib/Net/FTP
) ) {
next if ( -d "$DestDir$Conf{InstallDir}/$dir" );
mkpath("$DestDir$Conf{InstallDir}/$dir", 0, 0755);
if ( !-d "$DestDir$Conf{InstallDir}/$dir"
|| !my_chown($Uid, $Gid, "$DestDir$Conf{InstallDir}/$dir") ) {
die("Failed to create or chown $DestDir$Conf{InstallDir}/$dir\n");
} else {
print("Created $DestDir$Conf{InstallDir}/$dir\n");
}
}
#
# Create CGI image directory
#
foreach my $dir ( ($Conf{CgiImageDir}) ) {
next if ( $dir eq "" || -d "$DestDir$dir" );
mkpath("$DestDir$dir", 0, 0755);
if ( !-d "$DestDir$dir" || !my_chown($Uid, $Gid, "$DestDir$dir") ) {
die("Failed to create or chown $DestDir$dir");
} else {
print("Created $DestDir$dir\n");
}
}
#
# Create other directories
#
foreach my $dir ( (
"$Conf{TopDir}",
"$Conf{TopDir}/pool",
"$Conf{TopDir}/cpool",
"$Conf{TopDir}/pc",
"$Conf{TopDir}/trash",
"$Conf{ConfDir}",
"$Conf{LogDir}",
) ) {
mkpath("$DestDir$dir", 0, 0750) if ( !-d "$DestDir$dir" );
if ( !-d "$DestDir$dir"
|| !my_chown($Uid, $Gid, "$DestDir$dir") ) {
die("Failed to create or chown $DestDir$dir\n");
} else {
print("Created $DestDir$dir\n");
}
}
printf("Installing binaries in $DestDir$Conf{InstallDir}/bin\n");
foreach my $prog ( qw(
bin/BackupPC
bin/BackupPC_archive
bin/BackupPC_archiveHost
bin/BackupPC_archiveStart
bin/BackupPC_attribPrint
bin/BackupPC_dump
bin/BackupPC_fixupBackupSummary
bin/BackupPC_link
bin/BackupPC_nightly
bin/BackupPC_restore
bin/BackupPC_sendEmail
bin/BackupPC_serverMesg
bin/BackupPC_trashClean
bin/BackupPC_tarExtract
bin/BackupPC_tarCreate
bin/BackupPC_tarPCCopy
bin/BackupPC_zipCreate
bin/BackupPC_zcat
) ) {
InstallFile($prog, "$DestDir$Conf{InstallDir}/$prog", 0555);
}
printf("Installing library in $DestDir$Conf{InstallDir}/lib\n");
foreach my $lib ( qw(
lib/BackupPC/Attrib.pm
lib/BackupPC/Config.pm
lib/BackupPC/FileZIO.pm
lib/BackupPC/Lib.pm
lib/BackupPC/PoolWrite.pm
lib/BackupPC/Storage.pm
lib/BackupPC/View.pm
lib/BackupPC/CGI/AdminOptions.pm
lib/BackupPC/CGI/Archive.pm
lib/BackupPC/CGI/ArchiveInfo.pm
lib/BackupPC/CGI/Browse.pm
lib/BackupPC/CGI/DirHistory.pm
lib/BackupPC/CGI/EditConfig.pm
lib/BackupPC/CGI/EmailSummary.pm
lib/BackupPC/CGI/GeneralInfo.pm
lib/BackupPC/CGI/HostInfo.pm
lib/BackupPC/CGI/Lib.pm
lib/BackupPC/CGI/LOGlist.pm
lib/BackupPC/CGI/Queue.pm
lib/BackupPC/CGI/ReloadServer.pm
lib/BackupPC/CGI/RestoreFile.pm
lib/BackupPC/CGI/RestoreInfo.pm
lib/BackupPC/CGI/Restore.pm
lib/BackupPC/CGI/RSS.pm
lib/BackupPC/CGI/StartServer.pm
lib/BackupPC/CGI/StartStopBackup.pm
lib/BackupPC/CGI/StopServer.pm
lib/BackupPC/CGI/Summary.pm
lib/BackupPC/CGI/View.pm
lib/BackupPC/Config/Meta.pm
lib/BackupPC/Lang/cz.pm
lib/BackupPC/Lang/de.pm
lib/BackupPC/Lang/en.pm
lib/BackupPC/Lang/es.pm
lib/BackupPC/Lang/fr.pm
lib/BackupPC/Lang/it.pm
lib/BackupPC/Lang/ja.pm
lib/BackupPC/Lang/nl.pm
lib/BackupPC/Lang/pl.pm
lib/BackupPC/Lang/pt_br.pm
lib/BackupPC/Lang/ru.pm
lib/BackupPC/Lang/uk.pm
lib/BackupPC/Lang/zh_CN.pm
lib/BackupPC/Storage/Text.pm
lib/BackupPC/Xfer.pm
lib/BackupPC/Xfer/Archive.pm
lib/BackupPC/Xfer/Ftp.pm
lib/BackupPC/Xfer/Protocol.pm
lib/BackupPC/Xfer/Rsync.pm
lib/BackupPC/Xfer/RsyncDigest.pm
lib/BackupPC/Xfer/RsyncFileIO.pm
lib/BackupPC/Xfer/Smb.pm
lib/BackupPC/Xfer/Tar.pm
lib/BackupPC/Zip/FileMember.pm
lib/Net/FTP/AutoReconnect.pm
lib/Net/FTP/RetrHandle.pm
) ) {
InstallFile($lib, "$DestDir$Conf{InstallDir}/$lib", 0444);
}
if ( $Conf{CgiImageDir} ne "" ) {
printf("Installing images in $DestDir$Conf{CgiImageDir}\n");
foreach my $img ( <images/*> ) {
(my $destImg = $img) =~ s{^images/}{};
InstallFile($img, "$DestDir$Conf{CgiImageDir}/$destImg", 0444, 1);
}
#
# Install new CSS file, making a backup copy if necessary
#
my $cssBackup = "$DestDir$Conf{CgiImageDir}/BackupPC_stnd.css.pre-3.3.1";
if ( -f "$DestDir$Conf{CgiImageDir}/BackupPC_stnd.css" && !-f $cssBackup ) {
rename("$DestDir$Conf{CgiImageDir}/BackupPC_stnd.css", $cssBackup);
}
InstallFile("conf/BackupPC_stnd.css",
"$DestDir$Conf{CgiImageDir}/BackupPC_stnd.css", 0444, 0);
InstallFile("conf/BackupPC_stnd_orig.css",
"$DestDir$Conf{CgiImageDir}/BackupPC_stnd_orig.css", 0444, 0);
InstallFile("conf/sorttable.js",
"$DestDir$Conf{CgiImageDir}/sorttable.js", 0444, 0);
}
printf("Making init.d scripts\n");
foreach my $init ( qw(gentoo-backuppc gentoo-backuppc.conf linux-backuppc
solaris-backuppc debian-backuppc freebsd-backuppc
freebsd-backuppc2 suse-backuppc slackware-backuppc ) ) {
InstallFile("init.d/src/$init", "init.d/$init", 0444);
}
printf("Making Apache configuration file for suid-perl\n");
InstallFile("httpd/src/BackupPC.conf", "httpd/BackupPC.conf", 0644);
printf("Installing docs in $DestDir$Conf{InstallDir}/doc\n");
foreach my $doc ( qw(BackupPC.pod BackupPC.html) ) {
InstallFile("doc/$doc", "$DestDir$Conf{InstallDir}/doc/$doc", 0444);
}
printf("Installing config.pl and hosts in $DestDir$Conf{ConfDir}\n");
InstallFile("conf/hosts", "$DestDir$Conf{ConfDir}/hosts", 0644)
if ( !-f "$DestDir$Conf{ConfDir}/hosts" );
#
# Now do the config file. If there is an existing config file we
# merge in the new config file, adding any new configuration
# parameters and deleting ones that are no longer needed.
#
my $dest = "$DestDir$Conf{ConfDir}/config.pl";
my ($distConf, $distVars) = ConfigParse("conf/config.pl");
my ($oldConf, $oldVars);
my ($newConf, $newVars) = ($distConf, $distVars);
if ( -f $dest ) {
($oldConf, $oldVars) = ConfigParse($dest);
($newConf, $newVars) = ConfigMerge($oldConf, $oldVars, $distConf, $distVars);
}
#
# Update various config parameters. The old config is in Conf{}
# and the new config is an array in text form in $newConf->[].
#
$Conf{EMailFromUserName} ||= $Conf{BackupPCUser};
$Conf{EMailAdminUserName} ||= $Conf{BackupPCUser};
#
# Guess $Conf{CgiURL}
#
if ( !defined($Conf{CgiURL}) ) {
if ( $Conf{CgiDir} =~ m{cgi-bin(/.*)} ) {
$Conf{CgiURL} = "'http://$Conf{ServerHost}/cgi-bin$1/BackupPC_Admin'";
} else {
$Conf{CgiURL} = "'http://$Conf{ServerHost}/backuppc/index.cgi'";
}
}
#
# The smbclient commands have moved from hard-coded to the config file.
# $Conf{SmbClientArgs} no longer exists, so merge it into the new
# commands if it still exists.
#
if ( defined($Conf{SmbClientArgs}) ) {
if ( $Conf{SmbClientArgs} ne "" ) {
foreach my $param ( qw(SmbClientRestoreCmd SmbClientFullCmd
SmbClientIncrCmd) ) {
$newConf->[$newVars->{$param}]{text}
=~ s/(-E\s+-N)/$1 $Conf{SmbClientArgs}/;
}
}
delete($Conf{SmbClientArgs});
}
#
# CSS is now stored in a file rather than a big config variable.
#
delete($Conf{CSSstylesheet});
#
# The blackout timing settings are now stored in a list of hashes, rather
# than three scalar parameters.
#
if ( defined($Conf{BlackoutHourBegin}) ) {
$Conf{BlackoutPeriods} = [
{
hourBegin => $Conf{BlackoutHourBegin},
hourEnd => $Conf{BlackoutHourEnd},
weekDays => $Conf{BlackoutWeekDays},
}
];
delete($Conf{BlackoutHourBegin});
delete($Conf{BlackoutHourEnd});
delete($Conf{BlackoutWeekDays});
}
#
# $Conf{RsyncLogLevel} has been replaced by $Conf{XferLogLevel}
#
if ( defined($Conf{RsyncLogLevel}) ) {
$Conf{XferLogLevel} = $Conf{RsyncLogLevel};
delete($Conf{RsyncLogLevel});
}
#
# In 2.1.0 the default for $Conf{CgiNavBarAdminAllHosts} is now 1
#
$Conf{CgiNavBarAdminAllHosts} = 1;
#
# IncrFill should now be off
#
$Conf{IncrFill} = 0;
#
# Empty $Conf{ParPath} if it isn't a valid executable
# (pre-3.0.0 configure.pl incorrectly set it to a
# hardcoded value).
#
$Conf{ParPath} = '' if ( $Conf{ParPath} ne '' && !-x $Conf{ParPath} );
#
# Figure out sensible arguments for the ping command
#
$Conf{PingArgs} = '-c 1 $host';
if ( defined($Conf{PingArgs}) ) {
$Conf{PingCmd} = '$pingPath ' . $Conf{PingArgs};
} elsif ( !defined($Conf{PingCmd}) ) {
if ( $^O eq "solaris" || $^O eq "sunos" ) {
$Conf{PingCmd} = '$pingPath -s $host 56 1';
} elsif ( ($^O eq "linux" || $^O eq "openbsd" || $^O eq "netbsd")
&& !system("$Conf{PingPath} -c 1 -w 3 localhost") ) {
$Conf{PingCmd} = '$pingPath -c 1 -w 3 $host';
} else {
$Conf{PingCmd} = '$pingPath -c 1 $host';
}
delete($Conf{PingArgs});
}
#
# Figure out sensible arguments for the df command
#
if ( !defined($Conf{DfCmd}) ) {
if ( $^O eq "solaris" || $^O eq "sunos" ) {
$Conf{DfCmd} = '$dfPath -k $topDir';
}
}
#
# $Conf{SmbClientTimeout} is now $Conf{ClientTimeout}
#
if ( defined($Conf{SmbClientTimeout}) ) {
$Conf{ClientTimeout} = $Conf{SmbClientTimeout};
delete($Conf{SmbClientTimeout});
}
#
# Replace --devices with -D in RsyncArgs and RsyncRestoreArgs
#
foreach my $param ( qw(RsyncArgs RsyncRestoreArgs) ) {
next if ( !defined($newVars->{$param}) );
$newConf->[$newVars->{$param}]{text} =~ s/--devices/-D/g;
}
#
# Merge any new user-editable parameters into CgiUserConfigEdit
# by copying the old settings forward.
#
if ( defined($Conf{CgiUserConfigEdit}) ) {
#
# This is a real hack. The config file merging is done in text
# form without actually instantiating the new conf structure.
# So we need to extract the new hash of settings, update it,
# and merge the text. Ugh...
#
my $new;
my $str = $distConf->[$distVars->{CgiUserConfigEdit}]{text};
$str =~ s/^\s*\$Conf\{.*?\}\s*=\s*/\$new = /m;
eval($str);
foreach my $p ( keys(%$new) ) {
$new->{$p} = $Conf{CgiUserConfigEdit}{$p}
if ( defined($Conf{CgiUserConfigEdit}{$p}) );
}
$Conf{CgiUserConfigEdit} = $new;
my $d = Data::Dumper->new([$new], [*value]);
$d->Indent(1);
$d->Terse(1);
my $value = $d->Dump;
$value =~ s/(.*)\n/$1;\n/s;
$newConf->[$newVars->{CgiUserConfigEdit}]{text}
=~ s/(\s*\$Conf\{.*?\}\s*=\s*).*/$1$value/s;
}
#
# Apply any command-line configuration parameter settings
#
foreach my $param ( keys(%{$opts{"config-override"}}) ) {
my $val = eval { $opts{"config-override"}{$param} };
if ( @$ ) {
printf("Can't eval --config-override setting %s=%s\n",
$param, $opts{"config-override"}{$param});
exit(1);
}
if ( !defined($newVars->{$param}) ) {
printf("Unkown config parameter %s in --config-override\n", $param);
exit(1);
}
$newConf->[$newVars->{$param}]{text} = $opts{"config-override"}{$param};
}
#
# Now backup and write the config file
#
my $confCopy = "$dest.pre-3.3.1";
if ( -f $dest && !-f $confCopy ) {
#
# Make copy of config file, preserving ownership and modes
#
printf("Making backup copy of $dest -> $confCopy\n");
my @stat = stat($dest);
my $mode = $stat[2];
my $uid = $stat[4];
my $gid = $stat[5];
die("can't copy($dest, $confCopy)\n")
unless copy($dest, $confCopy);
die("can't chown $uid, $gid $confCopy\n")
unless my_chown($uid, $gid, $confCopy);
die("can't chmod $mode $confCopy\n")
unless my_chmod($mode, $confCopy);
}
open(OUT, ">", $dest) || die("can't open $dest for writing\n");
binmode(OUT);
my $blockComment;
foreach my $var ( @$newConf ) {
if ( length($blockComment)
&& substr($var->{text}, 0, length($blockComment)) eq $blockComment ) {
$var->{text} = substr($var->{text}, length($blockComment));
$blockComment = undef;
}
$blockComment = $1 if ( $var->{text} =~ /^([\s\n]*#{70}.*#{70}[\s\n]+)/s );
$var->{text} =~ s/^\s*\$Conf\{(.*?)\}(\s*=\s*['"]?)(.*?)(['"]?\s*;)/
defined($Conf{$1}) && ref($Conf{$1}) eq ""
&& $Conf{$1} ne $OrigConf{$1}
? "\$Conf{$1}$2$Conf{$1}$4"
: "\$Conf{$1}$2$3$4"/emg;
print OUT $var->{text};
}
close(OUT);
if ( !defined($oldConf) ) {
die("can't chmod 0640 mode $dest\n") unless my_chmod(0640, $dest);
die("can't chown $Uid, $Gid $dest\n") unless my_chown($Uid, $Gid, $dest);
}
if ( $Conf{CgiDir} ne "" ) {
printf("Installing cgi script BackupPC_Admin in $DestDir$Conf{CgiDir}\n");
mkpath("$DestDir$Conf{CgiDir}", 0, 0755);
InstallFile("cgi-bin/BackupPC_Admin", "$DestDir$Conf{CgiDir}/BackupPC_Admin",
04554);
}
print <<EOF;
Ok, it looks like we are finished. There are several more things you
will need to do:
- Browse through the config file, $Conf{ConfDir}/config.pl,
and make sure all the settings are correct. In particular,
you will need to set \$Conf{CgiAdminUsers} so you have
administration privileges in the CGI interface.
- Edit the list of hosts to backup in $Conf{ConfDir}/hosts.
- Read the documentation in $Conf{InstallDir}/doc/BackupPC.html.
Please pay special attention to the security section.
- Verify that the CGI script BackupPC_Admin runs correctly. You might
need to change the permissions or group ownership of BackupPC_Admin.
If this is an upgrade and you are using mod_perl, you will need
to restart Apache. Otherwise it will have stale code.
- BackupPC should be ready to start. Don't forget to run it
as user $Conf{BackupPCUser}! The installation also contains an
init.d/backuppc script that can be copied to /etc/init.d
so that BackupPC can auto-start on boot. This will also enable
administrative users to start the server from the CGI interface.
See init.d/README.
Enjoy!
EOF
if ( `$Conf{PerlPath} -V` =~ /uselargefiles=undef/ ) {
print <<EOF;
Warning: your perl, $Conf{PerlPath}, does not support large files.
This means BackupPC won't be able to backup files larger than 2GB.
To solve this problem you should build/install a new version of perl
with large file support enabled. Use
$Conf{PerlPath} -V | egrep uselargefiles
to check if perl has large file support (undef means no support).
EOF
}
eval "use File::RsyncP;";
if ( !$@ && $File::RsyncP::VERSION < 0.68 ) {
print("\nWarning: you need to upgrade File::RsyncP;"
. " I found $File::RsyncP::VERSION and BackupPC needs 0.68\n");
}
exit(0);
###########################################################################
# Subroutines
###########################################################################