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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 <[email protected]>
#
# COPYRIGHT
# Copyright (C) 2001-2017 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 3 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, see <http://www.gnu.org/licenses/>.
#
#========================================================================
#
# Version __VERSION__, released __RELEASEDATE__.
#
# See http://backuppc.sourceforge.net.
#
#========================================================================
use strict;
no utf8;
use vars qw(%Conf %OrigConf $Upgrade);
use lib "./lib";
#
# The two strings below are replaced with the full list of BackupPC executables
# and libraries by makeDist.
#
my @ConfigureBinList = qw(
__CONFIGURE_BIN_LIST__
);
my @ConfigureLibList = qw(
__CONFIGURE_LIB_LIST__
);
#
# Check that makeDist has been run; need to avoid having the magic string
# appear exactly (otherwise makeDist will replace it), so compute it instead
#
if ( $ConfigureBinList[0] eq "__" . "CONFIGURE_BIN_LIST__" ) {
die <<EOF;
You need to run makeDist first to create a tarball release that includes an
updated configure.pl. After you unpack the tarball, run configure.pl from
there.
EOF
}
my @Packages = qw(version Encode Socket File::Path File::Spec File::Copy
Digest::MD5 Data::Dumper Getopt::Std Getopt::Long Pod::Usage
File::Listing CGI BackupPC::XS BackupPC::Lib);
my $PackageVersion = {
"Encode" => "1.99",
"BackupPC::XS" => "0.62",
};
foreach my $pkg ( @Packages ) {
eval "use $pkg";
if ( !$@ ) {
next if ( !defined($PackageVersion->{$pkg}) );
my $ver = eval "\$${pkg}::VERSION";
next if ( version->parse($ver) >= version->parse($PackageVersion->{$pkg}) );
die <<EOF;
Perl package $pkg needs to be at least version $PackageVersion->{$pkg}.
The currently installed $pkg is version $ver.
Please upgrade package $pkg to the latest version and then re-run
this script.
EOF
}
if ( $pkg =~ /BackupPC::Lib/ ) {
die <<EOF;
Error loading $pkg: $@
BackupPC cannot load the package $pkg, which is included in the
BackupPC distribution. This probably means you did not cd to the
unpacked BackupPC distribution before running configure.pl, eg:
cd BackupPC-__VERSION__
./configure.pl
Please try again.
EOF
}
die <<EOF;
BackupPC needs the perl package "$pkg". Please install "$pkg"
(eg, using cpan) 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", "config-only", "data-dir=s", "dest-dir=s",
"fhs!", "help|?", "hostname=s", "html-dir=s",
"html-dir-url=s", "install-dir=s", "log-dir=s", "man",
"run-dir=s", "scgi-port=i", "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, share/doc/BackupPC
#
# 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 $ConfigDir = $opts{"config-dir"} || "/etc/BackupPC";
my $ConfigPath = "";
my $ConfigFileOK = 1;
while ( 1 ) {
if ( $ConfigFileOK
&& -f "$DestDir$ConfigDir/config.pl"
&& (!defined($opts{fhs}) || $opts{fhs})
&& !defined($opts{"config-path"}) ) {
$ConfigPath = "$ConfigDir/config.pl";
$opts{fhs} = 1 if ( !defined($opts{fhs}) );
print <<EOF;
Found $DestDir$ConfigDir/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: $ConfigDir/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 "$DestDir$ConfigPath" && -w "$DestDir$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 $ConfigPath );
print("The file '$DestDir$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 "" );
my $bpc;
if ( $ConfigPath ne "" && -r "$DestDir$ConfigPath" ) {
($ConfigDir = $ConfigPath) =~ s{/[^/]+$}{};
# In config-only mode use installed BackupPC if distribution files are not available.
my $libPath = ($opts{"config-only"} && ($INC{"BackupPC/Lib.pm"} ne "lib/BackupPC/Lib.pm")) ? "" : ".";
die("BackupPC::Lib->new failed\n")
if ( !($bpc = BackupPC::Lib->new(".", $libPath, "$DestDir$ConfigDir", 1)) );
%Conf = $bpc->Conf();
%OrigConf = %Conf;
$Upgrade = 1;
if ( !defined($opts{fhs}) ) {
if ( $ConfigPath eq "$Conf{TopDir}/conf/config.pl" ) {
$opts{fhs} = 0;
} else {
$opts{fhs} = 1;
}
}
if ( !$opts{fhs} ) {
($Conf{TopDir} = $ConfigPath) =~ s{/[^/]+/[^/]+$}{}
if ( $Conf{TopDir} eq '' );
$bpc->{LogDir} = $Conf{LogDir} = "$Conf{TopDir}/log"
if ( $Conf{LogDir} eq '' );
$bpc->{RunDir} = $Conf{RunDir} = "$Conf{TopDir}/log"
if ( $Conf{RunDir} eq '' );
}
$bpc->{ConfDir} = $Conf{ConfDir} = $ConfigDir;
if ( !length($DestDir) ) {
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 "systemctl stop backuppc.service" if you use systemd,
or "/etc/init.d/backuppc stop" if you use init.d.
EOF
exit(1);
}
}
}
#
# Create filesystem hierarchy defaults
#
$Conf{TopDir} ||= $opts{"data-dir"} || "/data/BackupPC";
$Conf{InstallDir} ||= $opts{"install-dir"} || "/usr/local/BackupPC";
#
# These are the programs whose paths we need to find
#
my %Programs = (
perl => "PerlPath",
rsync_bpc => "RsyncBackupPCPath",
'gtar/tar' => "TarClientPath",
smbclient => "SmbClientPath",
nmblookup => "NmbLookupPath",
rsync => "RsyncClientPath",
ping => "PingPath",
ping6 => "Ping6Path",
df => "DfPath",
'ssh/ssh2' => "SshPath",
sendmail => "SendmailPath",
hostname => "HostnamePath",
split => "SplitPath",
par2 => "ParPath",
cat => "CatPath",
gzip => "GzipPath",
bzip2 => "Bzip2Path",
rrdtool => "RrdToolPath",
);
foreach my $prog ( sort(keys(%Programs)) ) {
my $path;
foreach my $subProg ( split(/\//, $prog) ) {
$path = FindProgram("$ENV{PATH}:/usr/bin:/bin:/sbin:/usr/sbin:/usr/local/bin", $subProg) if ( !length($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});
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);
}
}
if ( $opts{fhs} ) {
$Conf{ConfDir} ||= $ConfigDir || "/etc/BackupPC";
$Conf{LogDir} ||= $opts{"log-dir"} || "/var/log/BackupPC";
$Conf{RunDir} ||= $opts{"run-dir"} || "/var/run/BackupPC";
} else {
$Conf{ConfDir} ||= $ConfigDir || "$Conf{TopDir}/conf";
$Conf{LogDir} ||= $opts{"log-dir"} || "$Conf{TopDir}/log";
$Conf{RunDir} ||= $opts{"run-dir"} || "$Conf{TopDir}/log";
}
$Conf{CompressLevel} = $opts{"compress-level"}
if ( defined($opts{"compress-level"}) );
print <<EOF;
BackupPC has SCGI and CGI perl interfaces that run under Apache. You need
to pick which one to run.
For SCGI, Apache uses the scgi_mod module to communicate with BackupPC_Admin_SCGI,
which handles the requests. This allows Apache to run as a different user as
$Conf{BackupPCUser}. To use SCGI you need to set SCGIServerPort to any spare
non-privileged TCP port number. A negative value disables SCGI.
** Important security warning!! The SCGIServerPort must not be accessible by
** anyone untrusted. That means you can't allow untrusted users access to the
** BackupPC server, and you should block the SCGIServerPort TCP port from
** network access.
The traditional alternative is to use CGI. In this case, an executable needs
to be installed Apache's 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}.
EOF
$Conf{SCGIServerPort} = prompt("--> SCGI port (-1 to disable)", $Conf{SCGIServerPort} || -1, "scgi-port");
if ( $Conf{SCGIServerPort} < 0 ) {
while ( 1 ) {
$Conf{CgiDir} = prompt("--> CGI bin directory (full path, or empty for no CGI)", $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{SCGIServerPort} > 0 || $Conf{CgiDir} ne "" ) {
print <<EOF;
BackupPC's CGI and SCGI script need 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, or empty for no S/CGI)", $Conf{CgiImageDir}, "html-dir");
last if ( $Conf{CgiImageDir} =~ /^\// || $Conf{CgiImageDir} eq "" );
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 '/', or empty for no S/CGI)",
$Conf{CgiImageDirURL}, "html-dir-url");
last if ( $Conf{CgiImageDirURL} =~ /^\// || $Conf{CgiImageDirURL} eq "" );
if ( $opts{batch} ) {
print("Need to specify --html-dir-url for new installation\n");
exit(1);
}
}
}
print <<EOF;
Ok, we're about to:
EOF
print <<EOF if ( !$opts{"config-only"} );
- install the binaries, lib and docs in $DestDir$Conf{InstallDir}
- create the data directory $DestDir$Conf{TopDir}
- optionally install the cgi-bin interface
EOF
print <<EOF;
- create/update the config.pl file $DestDir$Conf{ConfDir}/config.pl
EOF
exit unless prompt("--> Do you want to continue?", "y") =~ /y/i;
CleanPidSock();
DoInstall() if ( !$opts{"config-only"} );
print("Installing config.pl and hosts in $DestDir$Conf{ConfDir}\n");
InstallFile("conf/hosts", "$DestDir$Conf{ConfDir}/hosts.sample", 0644)
if ( !$opts{"config-only"} );
my $hostsSample = $opts{"config-only"} ? "$DestDir$Conf{ConfDir}/hosts.sample" : "conf/hosts";
InstallFile($hostsSample, "$DestDir$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 $configSample = $opts{"config-only"} ? "$DestDir$Conf{ConfDir}/config.pl.sample" : "conf/config.pl";
my($distConf, $distVars) = ConfigParse($configSample);
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 ( $Conf{CgiURL} eq '' ) {
if ( $Conf{CgiDir} =~ m{cgi-bin(/.*)} ) {
$Conf{CgiURL} = "http://$Conf{ServerHost}/cgi-bin$1/BackupPC_Admin";
} else {
$Conf{CgiURL} = "http://$Conf{ServerHost}/cgi-bin/BackupPC_Admin";
}
}
#
# 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});
}
#
# Since 2.1.0 the default for $Conf{CgiNavBarAdminAllHosts} is now 1
#
$Conf{CgiNavBarAdminAllHosts} = 1;
#
# 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 $Conf{ParPath} );
#
# Figure out sensible arguments for the ping command
#
if ( defined($Conf{PingArgs}) ) {
$Conf{PingCmd} = '$pingPath ' . $Conf{PingArgs};
delete($Conf{PingArgs});
} elsif ( $Upgrade && !defined($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 $host';
}
}
#
# Figure out sensible arguments for the df command
#
if ( !defined($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);
$d->Sortkeys(1);
my $value = $d->Dump;
$value =~ s/(.*)\n/$1;\n/s;
$newConf->[$newVars->{CgiUserConfigEdit}]{text} =~ s/^(\s*\$Conf\{.*?\}\s*=\s*).*/$1$value/ms;
}
#
# If this is an upgrade from V3, then set $Conf{PoolV3Enabled}
# and update $Conf{RsyncArgs} and $Conf{RsyncRestoreArgs}.
#
if ( $Upgrade && !defined($Conf{PoolV3Enabled}) ) {
$Conf{PoolV3Enabled} = 1;
#
# for an upgrade, remove the new --one-file-system flag if it wasn't there before
#
if ( $oldConf->[$oldVars->{RsyncArgs}]{text} !~ /--one-file-system/ ) {
$distConf->[$distVars->{RsyncArgs}]{text} =~ s/\n\s*'--one-file-system',\n/\n/;
}
$newConf->[$newVars->{RsyncArgs}]{text} = $distConf->[$distVars->{RsyncArgs}]{text};
$newConf->[$newVars->{RsyncRestoreArgs}]{text} = $distConf->[$distVars->{RsyncRestoreArgs}]{text};
#
# If it exists, use $Conf{RsyncClientCmd} to create the default $Conf{RsyncSshArgs}.
#
if ( $Conf{RsyncClientCmd} =~ /(\$sshPath.* +-l +\S+)/ && defined($newVars->{RsyncSshArgs}) ) {
my $sshEArg = $1;
my $value = "[\n '-e', '$sshEArg',\n];\n\n";
$newConf->[$newVars->{RsyncSshArgs}]{text} =~ s/^(\s*\$Conf\{RsyncSshArgs}\s*=\s*).*/$1$value/ms;
printf("** Warning: setting \$Conf{RsyncSshArgs} to ['-e', '%s'] based on deprecated V3 setting"
. " \$Conf{RsyncClientCmd} = '%s'; please"
. " check & fix \$Conf{RsyncClientPath} and \$Conf{RsyncSshArgs}\n",
$sshEArg, $Conf{RsyncClientCmd});
} else {
printf(
"** Warning: unable to set \$Conf{RsyncSshArgs} based on deprecated V3 setting"
. " \$Conf{RsyncClientCmd} = '%s'; please"
. " check & fix \$Conf{RsyncClientPath} and \$Conf{RsyncSshArgs}\n",
$Conf{RsyncClientCmd}
);
}
#
# check if any per-host config files have a $Conf{RsyncClientCmd} setting; if so
# warn the user they need to manually check/update them
#
my @hostConfigs = (
<$DestDir$Conf{ConfDir}/pc/*.pl>, # FHS case
<$DestDir$Conf{TopDir}/pc/*/config.pl> # non-FHS case
);
foreach my $hostConfigFile ( @hostConfigs ) {
next if ( !-f $hostConfigFile );
my($hostConf, $hostVars) = ConfigParse($hostConfigFile);
if ( defined($hostVars->{RsyncClientCmd}) ) {
print( "** Warning: host config $hostConfigFile contains deprecated V3 \$Conf{RsyncClientCmd} setting;"
. " you need to manually update \$Conf{RsyncClientPath} and \$Conf{RsyncSshArgs} for this host\n");
}
if ( defined($hostVars->{RsyncClientRestoreCmd}) ) {
print(
"** Warning: host config $hostConfigFile contains deprecated V3 \$Conf{RsyncClientRestoreCmd} setting;"
. " you need to manually update \$Conf{RsyncClientPath} and \$Conf{RsyncSshArgs} for this host\n");
}
}
}
#
# Update $Conf{CgiNavBarLinks} with github URLs
#
$newConf->[$newVars->{CgiNavBarLinks}]{text} =~
s{http://backuppc.wiki.sourceforge.net}{https://github.com/backuppc/backuppc/wiki}g;
$newConf->[$newVars->{CgiNavBarLinks}]{text} =~
s{http://backuppc.sourceforge.net}{https://backuppc.github.io/backuppc}g;
$newConf->[$newVars->{CgiNavBarLinks}]{text} =~ s{SourceForge}{Homepage}g;
#
# Apply any command-line configuration parameter settings
#
foreach my $param ( keys(%{$opts{"config-override"}}) ) {
my $value = $opts{"config-override"}{$param};
my $val = eval {$value};
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);
}
$value .= ";\n\n";
$newConf->[$newVars->{$param}]{text} =~ s/^(\s*\$Conf\{$param}\s*=\s*).*/$1$value/ms;
}
#
# Now backup and write the config file
#
my $confCopy = "$dest.pre-__VERSION__";
if ( -f $dest && !-f $confCopy ) {
#
# Make copy of config file, preserving ownership and modes
#
print("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*#{70}.*#{70}\s+)/s );
$var->{text} =~ s/^\s*\$Conf\{(.*?)\}(\s*=\s*['"]?)(.*?)(['"]?\s*;)/
my $varName = $1;
my $a = $2;
my $varValue = $3;
my $b = $4;
# Get quotes from default config to avoid missing or extra quotes
# when replacing misused undef or empty string values
($a, $b) = GetQuotes($varName)
if ( (!defined($OrigConf{$varName}) || $OrigConf{$varName} eq "")
&& $Conf{$varName} ne $OrigConf{$varName} );
defined($Conf{$varName}) && ref($Conf{$varName}) eq ""
&& !defined($opts{"config-override"}{$varName})
&& $Conf{$varName} ne $OrigConf{$varName}
? "\$Conf{$varName}$a$Conf{$varName}$b"
: "\$Conf{$varName}$a$varValue$b"/emsg;
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, $dest);
}
InstallFile($dest, "$DestDir$Conf{ConfDir}/config.pl.sample", 0644)
if ( !$opts{"config-only"} );
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 $Conf{BackupPCUser}! The installation also contains
a systemd/backuppc.service script that can be installed so
that BackupPC can auto-start on boot. This will also enable
administrative users to start the server from the CGI interface.
See systemd/README.
Enjoy!
EOF
if ( `$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
}
exit(0);
###########################################################################
# Subroutines
###########################################################################
sub DoInstall
{
#
# Create install directories
#
foreach my $dir ( qw(bin
share share/doc share/doc/BackupPC
lib lib/BackupPC
lib/BackupPC/CGI
lib/BackupPC/Config
lib/BackupPC/Lang
lib/BackupPC/Storage
lib/BackupPC/Xfer
lib/BackupPC/Zip
lib/Net lib/Net/FTP
) ) {
next if ( -d "$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{ConfDir}", "$Conf{LogDir}", "$Conf{RunDir}",
) ) {
eval { mkpath("$DestDir$dir", 0, 0750) } if ( !-d "$DestDir$dir" );
if ( $@
|| !-d "$DestDir$dir"
|| !my_chown($Uid, $Gid, "$DestDir$dir") ) {
if ( $dir eq $Conf{RunDir} ) {
print("Failed to create or chown $DestDir$dir... continuing\n");
} else {
die("Failed to create or chown $DestDir$dir\n");
}
} else {
print("Created $DestDir$dir\n");
}
}
print("Installing binaries in $DestDir$Conf{InstallDir}/bin\n");
foreach my $prog ( @ConfigureBinList ) {
InstallFile($prog, "$DestDir$Conf{InstallDir}/$prog", 0555);
}
#
# remove old pre-v4 programs
#
foreach my $prog ( qw(
bin/BackupPC_link
bin/BackupPC_tarPCCopy
bin/BackupPC_trashClean
bin/BackupPC_compressPool
) ) {
unlink("$DestDir$Conf{InstallDir}/$prog");
}
print("Installing library in $DestDir$Conf{InstallDir}/lib\n");
foreach my $lib ( @ConfigureLibList ) {
InstallFile($lib, "$DestDir$Conf{InstallDir}/$lib", 0444);
}
#
# remove old pre-v4 libraries
#
foreach my $lib ( qw(
lib/BackupPC/Attrib.pm
lib/BackupPC/Config.pm
lib/BackupPC/FileZIO.pm
lib/BackupPC/PoolWrite.pm
lib/BackupPC/Xfer/RsyncDigest.pm
lib/BackupPC/Xfer/RsyncFileIO.pm
) ) {
unlink("$DestDir$Conf{InstallDir}/$lib");
}
if ( $Conf{CgiImageDir} ne "" ) {
print("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$Conf{CgiImageDir}/BackupPC_stnd.css.pre-__VERSION__";
if ( -f "$DestDir$Conf{CgiImageDir}/BackupPC_stnd.css" && !-f $cssBackup ) {
rename("$DestDir$Conf{CgiImageDir}/BackupPC_stnd.css", $cssBackup);
}
InstallFile("conf/BackupPC_stnd.css", "$DestDir$Conf{CgiImageDir}/BackupPC_stnd.css", 0444, 0);
InstallFile("conf/BackupPC_retro_v2.css", "$DestDir$Conf{CgiImageDir}/BackupPC_retro_v2.css", 0444, 0);
InstallFile("conf/BackupPC_retro_v3.css", "$DestDir$Conf{CgiImageDir}/BackupPC_retro_v3.css", 0444, 0);
InstallFile("conf/sorttable.js", "$DestDir$Conf{CgiImageDir}/sorttable.js", 0444, 0);
}
print("Making systemd and init.d scripts\n");
foreach my $dir ( qw(systemd systemd/init.d) ) {
mkpath($dir, 0, 0755);
if ( !-d $dir || !my_chown($Uid, $Gid, $dir) ) {
die("Failed to create or chown $dir\n");
}
}
InstallFile("systemd/src/backuppc.service", "systemd/backuppc.service", 0644);
foreach my $init ( qw(init.d/gentoo-backuppc init.d/gentoo-backuppc.conf
init.d/linux-backuppc init.d/solaris-backuppc init.d/debian-backuppc
init.d/freebsd-backuppc init.d/freebsd-backuppc2 init.d/suse-backuppc
init.d/slackware-backuppc init.d/ubuntu-backuppc ) ) {
InstallFile("systemd/src/$init", "systemd/$init", 0755);
}
print("Making Apache configuration file for suid-perl\n");