mod-backup/98_backup.pm
2019-03-28 15:12:11 +01:00

346 lines
9.0 KiB
Perl

################################################################
# Developed with Kate
#
# (c) 2012-2019 Copyright: Martin Fischer (m_fischer at gmx dot de)
# Maintained by Marko Oldenburg since 2019
# All rights reserved
#
# This script 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.
#
# The GNU General Public License can be found at
# http://www.gnu.org/copyleft/gpl.html.
# A copy is found in the textfile GPL.txt and important notices to the license
# from the author is found in LICENSE.txt distributed with these scripts.
#
# This script 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.
#
#
# $Id$
#
################################################################
package main;
use strict;
use warnings;
use FHEM::Meta;
#####################################
sub backup_Initialize($$) {
my %hash = ( Fn => 'FHEM::backup::CommandBackup',
Hlp => ',create a backup of fhem configuration, state and modpath' );
$cmds{backup} = \%hash;
return FHEM::Meta::InitMod( __FILE__, \%hash );
}
######################################
## unserer packagename
package FHEM::backup;
use strict;
use warnings;
use FHEM::Meta;
use GPUtils qw(GP_Import)
; # wird für den Import der FHEM Funktionen aus der fhem.pl benötigt
## Import der FHEM Funktionen
BEGIN {
GP_Import(
qw(AttrVal
gettimeofday
ResolveDateWildcards
attr
Log
fhemForked
defs
configDBUsed
TimeNow
BC_searchTelnet
BC_telnetDevice
DoTrigger)
);
}
my @pathname;
sub CommandBackup($$) {
my ($cl, $param) = @_;
my $byUpdate = ($param && $param eq 'startedByUpdate');
my $modpath = AttrVal('global', 'modpath', '');
my $configfile = AttrVal('global', 'configfile', '');
my $statefile = AttrVal('global', 'statefile', '');
my $logDir = AttrVal('global', 'logdir', 'none');
my $now = gettimeofday();
my @t = localtime($now);
$statefile = ResolveDateWildcards($statefile, @t);
# prevent duplicate entries in backup list for default config, forum #54826
$configfile = '' if ($configfile eq 'fhem.cfg' || configDBUsed());
$statefile = '' if ($statefile eq './log/fhem.save');
my $msg;
my $ret;
Log(1, 'NOTE: make sure you have a database backup!') if(configDBUsed());
# set backupdir
my $backupdir;
if (!defined($attr{global}{backupdir})) {
$backupdir = $modpath . '/backup';
}
else {
if ($attr{global}{backupdir} =~ m/^\/.*/) {
$backupdir = $attr{global}{backupdir};
}
elsif ($attr{global}{backupdir} =~ m/^\.+\/.*/) {
$backupdir = $modpath . '/' . $attr{global}{backupdir};
}
else {
$backupdir = $modpath . '/' . $attr{global}{backupdir};
}
}
# create backupdir if not exists
if (!-d $backupdir) {
Log(4, 'backup create backupdir: ' . $backupdir);
$ret = `(mkdir -p $backupdir) 2>&1`;
if ($ret) {
chomp($ret);
$msg = 'backup: ' . $ret;
return $msg;
}
}
if(configDBUsed()) {
# add configDB configuration file
push(@pathname, 'configDB.conf');
Log(4, 'backup include: \'configDB.conf\'');
}
else {
# get pathnames to archiv
push(@pathname, $configfile) if($configfile);
Log(4, 'backup include: ' . $configfile);
$ret = parseConfig($configfile);
push(@pathname, $statefile) if($statefile);
Log(4, 'backup include: ' . $statefile);
}
$ret = readModpath($modpath,$backupdir);
## add extra logdir path to backup
push(@pathname, $logDir) if($logDir ne 'none');
# create archiv
$ret = createArchiv($backupdir, $cl, $byUpdate);
@pathname = [];
undef @pathname;
return $ret;
}
sub parseConfig($);
sub parseConfig($) {
my $configfile = shift;
# we need default value to read included files
$configfile = $configfile ? $configfile : 'fhem.cfg';
my $fh;
my $msg;
my $ret;
if (!open($fh,$configfile)) {
$msg = 'Can\'t open ' . $configfile . ': ' . $!;
Log(1, 'backup ' . $msg);
return $msg;
}
while (my $l = <$fh>) {
$l =~ s/[\r\n]//g;
if ($l =~ m/^\s*include\s+(\S+)\s*.*$/) {
if (-e $1) {
push @pathname, $1;
Log(4, 'backup include: ' . $1);
$ret = parseConfig($1);
}
else {
Log(1, 'backup configfile: ' . $1 . ' does not exists! File not included.');
}
}
}
close $fh;
return $ret;
}
sub readModpath($$) {
my ($modpath,$backupdir) = @_;
my $msg;
my $ret;
if (!opendir(DH, $modpath)) {
$msg = 'Can\'t open $modpath: ' . $!;
Log(1, 'backup ' . $msg);
return $msg;
}
my @files = <$modpath/*>;
foreach my $file (@files) {
if ($file eq $backupdir && (-d $file || -l $file)) {
Log(4, 'backup exclude: ' . $file);
}
else {
Log(4, 'backup include: ' . $file);
push @pathname, $file;
}
}
return $ret;
}
sub createArchiv($$$) {
my ($backupdir,$cl,$byUpdate) = @_;
my $backupcmd = (!defined($attr{global}{backupcmd}) ? undef : $attr{global}{backupcmd});
my $symlink = (!defined($attr{global}{backupsymlink}) ? 'no' : $attr{global}{backupsymlink});
my $tarOpts;
my $msg;
my $ret;
my $dateTime = TimeNow();
$dateTime =~ s/ /_/g;
$dateTime =~ s/(:|-)//g;
my $pathlist = join( '" "', @pathname );
my $cmd='';
if (!defined($backupcmd)) {
if (lc($symlink) eq 'no') {
$tarOpts = 'cf';
}
else {
$tarOpts = 'chf';
}
# prevents tar's output of "Removing leading /" and return total bytes of
# archive
# $cmd = "tar -$tarOpts - \"$pathlist\" |gzip > $backupdir/FHEM-$dateTime.tar.gz";
$cmd = "tar $tarOpts $backupdir/FHEM-$dateTime.tar.gz \"$pathlist\"";
}
else {
$cmd = $backupcmd . ' \"' . $pathlist . '\"';
}
Log(2, 'Backup with command: ' . $cmd);
if(!$fhemForked && !$byUpdate) {
use Blocking;
our $BC_telnetDevice;
BC_searchTelnet('backup');
my $tp = $defs{$BC_telnetDevice}{PORT};
system("($cmd; echo Backup done;".
"$^X $0 localhost:$tp 'trigger global backup done')2>&1 &");
return "Started the backup in the background, watch the log for details";
}
$ret = `($cmd) 2>&1`;
if($ret) {
chomp $ret;
Log(1, 'backup ' . $ret);
}
if (!defined($backupcmd) && -e "$backupdir/FHEM-$dateTime.tar.gz") {
my $size = -s "$backupdir/FHEM-$dateTime.tar.gz";
$msg = "backup done: FHEM-$dateTime.tar.gz ($size Bytes)";
DoTrigger('global', $msg);
Log(1, $msg);
$ret .= "\n".$msg;
}
return $ret;
}
1;
=pod
=item command
=item summary create a backup of the FHEM installation
=item summary_DE erzeugt eine Sicherungsdatei der FHEM Installation
=begin html
<a name="backup"></a>
<h3>backup</h3>
<ul>
<code>backup</code><br>
<br>
The complete FHEM directory (containing the modules), the WebInterface
pgm2 (if installed) and the config-file will be saved into a .tar.gz
file by default. The file is stored with a timestamp in the
<a href="#modpath">modpath</a>/backup directory or to a directory
specified by the global attribute <a href="#backupdir">backupdir</a>.<br>
Note: tar and gzip must be installed to use this feature.
<br>
<br>
If you need to call tar with support for symlinks, you could set the
global attribute <a href="#backupsymlink">backupsymlink</a> to everything
else as "no".
<br>
<br>
You could pass the backup to your own command / script by using the
global attribute <a href="#backupcmd">backupcmd</a>.
<br>
<br>
</ul>
=end html
=for :application/json;q=META.json 98_backup.pm
{
"abstract": "Modul to retrieves apt information about Debian update state",
"x_lang": {
"de": {
"abstract": "Modul um apt Updateinformationen von Debian Systemen zu bekommen"
}
},
"keywords": [
"fhem-mod-device",
"fhem-core",
"backup",
"tar"
],
"release_status": "stable",
"license": "GPL_2",
"author": [
"Marko Oldenburg <leongaultier@gmail.com>"
],
"x_fhem_maintainer": [
"CoolTux"
],
"x_fhem_maintainer_github": [
"LeonGaultier"
],
"prereqs": {
"runtime": {
"requires": {
"FHEM": 5.00918799,
"perl": 5.016,
"Meta": 0
},
"recommends": {
},
"suggests": {
}
}
}
}
=end :application/json;q=META.json
=cut