bin/BackupPC_ASA_PostArchive_Update

   1 #!/usr/local/bin/perl -w
   2
   3 use strict;
   4 use lib "/usr/local/BackupPC/lib";
   5
   6 use DBI;
   7 use BackupPC::Lib;
   8 use BackupPC::View;
   9 use BackupPC::Attrib qw/:all/;
  10 use Data::Dump qw(dump);
  11 use Time::HiRes qw/time/;
  12 use POSIX qw/strftime/;
  13 use Cwd qw/abs_path/;
  14 use Archive::Tar::Streamed;
  15 use Algorithm::Diff;
  16 use File::Slurp;
  17 use Getopt::Long::Descriptive;
  18
  19 =head1 NAME
  20
  21 BackupPC_ASA_PostArchive_Update
  22
  23 =head1 DESCRIPTION
  24
  25         # /etc/BackupPC/pc/_search_archive.pl
  26
  27 =cut
  28
  29
  30 my $bpc = BackupPC::Lib->new || die "can't create BackupPC::Lib";
  31 $bpc->ConfigRead('_search_archive'); # read our configuration
  32 my %Conf = $bpc->Conf();
  33
  34 use BackupPC::Search;
  35 %BackupPC::Search::Conf = %Conf;
  36
  37 my ($opt,$usage) = describe_options(
  38 "%c %o",
  39 [ 'host|h=s@',  "import just host(s)" ],
  40 [ 'num|n=s@',   "import just backup number(s)" ],
  41 [ 'check|c',    "check archives on disk and sync", { default => 1 } ],
  42 [ 'debug|d',    "debug", { default => 1 } ],
  43 [ 'help',       "show help" ],
  44 );
  45
  46 print($usage->text), exit if $opt->help;
  47
  48 $|=1;
  49
  50 my $start_t = time();
  51
  52 my $t_fmt = '%Y-%m-%d %H:%M:%S';
  53
  54 #warn "## Conf = ",dump( \%Conf );
  55
  56 my $dbh = DBI->connect($Conf{SearchDSN}, $Conf{SearchUser}, "", { RaiseError => 1, AutoCommit => 0 });
  57
  58 #---- subs ----
  59
  60
  61 sub curr_time {
  62         return strftime($t_fmt,localtime());
  63 }
  64
  65 sub fmt_time {
  66         my $t = shift || return;
  67         my $out = "";
  68         my ($ss,$mm,$hh) = gmtime($t);
  69         $out .= "${hh}h" if ($hh);
  70         $out .= sprintf("%02d:%02d", $mm,$ss);
  71         return $out;
  72 }
  73
  74 my $hsn_cache;
  75
  76 sub get_backup_id($$) {
  77         my ($host, $num) = @_;
  78
  79         my $key = "$host $num";
  80         return $hsn_cache->{$key} if ($hsn_cache->{$key});
  81
  82         my $sth = $dbh->prepare(qq{
  83                 SELECT
  84                         backups.id
  85                 FROM backups
  86                 INNER JOIN shares       ON backups.shareID=shares.ID
  87                 INNER JOIN hosts        ON backups.hostID = hosts.ID
  88                 WHERE hosts.name = ? and backups.num = ?
  89         });
  90         $sth->execute($host, $num);
  91         my ($id) = $sth->fetchrow_array;
  92
  93         $hsn_cache->{"$host $num"} = $id;
  94
  95         print STDERR "# $host $num == $id\n" if $opt->debug;
  96
  97         return $id;
  98 }
  99
 100 sub backup_inc_deleted($) {
 101         my $backup_id = shift;
 102         my $sth_inc_deleted = $dbh->prepare(qq{
 103                 update backups set
 104                         inc_deleted = true
 105                 where id = ?
 106         });
 107         $sth_inc_deleted->execute($backup_id);
 108 }
 109
 110 sub system_ok {
 111         warn "## system_ok @_\n";
 112         system(@_) == 0 || die "system @_:$!";
 113 }
 114
 115 my $sth_inc_size = $dbh->prepare(qq{
 116         update backups set
 117                 inc_size = ?,
 118                 parts = ?,
 119                 inc_deleted = false
 120         where id = ?
 121 });
 122
 123 sub read_only {
 124         my $full = shift;
 125         my $perm = (stat $full)[2] & 0444;
 126         warn sprintf("chmod %03o %s\n",$perm,$full);
 127         chmod $perm, $full || die $!;
 128 }
 129
 130 sub check_archive {
 131         my ($host,$num) = @_;
 132         warn "# check_archive $host $num";
 133
 134         my $t = time();
 135
 136         my $glob = "$Conf{ArchiveDest}/$host.$num.*";
 137
 138         my @tar_parts = sort map { s/^\Q$Conf{ArchiveDest}\E\/*//; $_ } glob $glob ;
 139
 140         if ( ! @tar_parts ) {
 141                 warn "ERROR: no files for $glob";
 142                 return;
 143         }
 144
 145         print curr_time, " check $host $num";
 146
 147         my $md5_path = "$Conf{ArchiveDest}/$host.$num.md5";
 148         unlink $md5_path if -s $md5_path == 0; # fix empty
 149
 150         my $read_protect = 0;
 151
 152         if ( ! -e $md5_path ) {
 153                 system_ok "cd $Conf{ArchiveDest} && /usr/bin/md5sum $host.$num.* > $md5_path";
 154                 read_only $md5_path;
 155                 $read_protect = 1;
 156         } else {
 157                 system_ok "cd $Conf{ArchiveDest} && /usr/bin/md5sum -c $md5_path" if $opt->check;
 158         }
 159
 160         my $md5sum;
 161         foreach ( split(/\n/, read_file "$Conf{ArchiveDest}/$host.$num.md5" ) ) {
 162                 my ( $md5, $path ) = split(/\s+/,$_);
 163                 $md5sum->{$path} = $md5;
 164                 read_only "$Conf{ArchiveDest}/$path" if $read_protect;
 165         }
 166
 167         # depending on expected returned value this is used like:
 168         # my $uncompress_size = get_gzip_size('/full/path/to.gz');
 169         # my ($compress_size, $uncompress_size) = get_gzip_size('/path.gz');
 170         sub get_gzip_size($) {
 171                 my $filename = shift;
 172                 die "file $filename problem: $!" unless (-r $filename);
 173
 174                 if ( $filename !~ m/\.gz$/ ) {
 175                         return -s $filename;
 176                 }
 177
 178                 open(my $gzip, $Conf{GzipPath}." -l $filename |") || die "can't gzip -l $filename: $!";
 179                 local $/ = undef;
 180                 my $line = <$gzip>;
 181                 close($gzip);
 182
 183                 my ($comp, $uncomp) = (0,0);
 184
 185                 if ($line =~ m/\s+(\d+)\s+(\d+)\s+\d+\.\d+/s) {
 186                         if (wantarray) {
 187                                 return [ $1, $2 ];
 188                         } else {
 189                                 return $2;
 190                         }
 191                 } else {
 192                         warn "ERROR can't parse: $line";
 193                         return -s $filename;
 194                 }
 195         }
 196
 197         sub check_part {
 198                 my ($host, $num, $part_nr, $tar_size, $size, $md5, $items, $filename) = @_;
 199                 my $backup_id = get_backup_id($host, $num);
 200                 my $sth_md5 = $dbh->prepare(qq{
 201                         select
 202                                 id, tar_size, size, md5, items, filename
 203                         from backup_parts
 204                         where backup_id = ? and part_nr = ? and filename = ?
 205                 });
 206
 207                 $sth_md5->execute($backup_id, $part_nr, $filename);
 208
 209                 if (my $row = $sth_md5->fetchrow_hashref) {
 210                         return if (
 211                                 $row->{tar_size} >= $tar_size &&
 212                                 $row->{size} == $size &&
 213                                 $row->{md5} eq $md5 &&
 214                                 $row->{items} == $items
 215                         );
 216                         print ", deleting invalid backup_parts $row->{id}";
 217                         $dbh->do(qq{ delete from backup_parts where id = $row->{id} });
 218                 }
 219                 print ", inserting new";
 220                 my $sth_insert = $dbh->prepare(qq{
 221                         insert into backup_parts (
 222                                 backup_id,
 223                                 part_nr,
 224                                 tar_size,
 225                                 size,
 226                                 md5,
 227                                 items,
 228                                 filename
 229                         ) values (?,?,?,?,?,?,?)
 230                 });
 231
 232                 $sth_insert->execute($backup_id, $part_nr, $tar_size, $size, $md5, $items, $filename);
 233                 $dbh->commit;
 234         }
 235
 236         print " [parts: ",join(", ", @tar_parts),"]" if $opt->debug;
 237
 238         my @tar_files;
 239
 240         my $backup_part;
 241
 242         print " reading" if $opt->debug;
 243
 244         my $part_nr = 0;
 245         my $inc_size = 0;
 246
 247         foreach my $filename (@tar_parts) {
 248
 249                 next if $filename eq "$host.$num.md5";
 250
 251                 print "\n\t- $filename";
 252
 253                 my $path = "$Conf{ArchiveDest}/$filename";
 254                 $path =~ s{//+}{/}g;
 255
 256                 my $size = (stat( $path ))[7] || die "can't stat $path: $!";
 257
 258                 if ($size > $Conf{ArchiveMediaSize}) {
 259                         print ", part bigger than media $size > $Conf{ArchiveMediaSize}\n";
 260                         return 0;
 261                 }
 262
 263                 print ", $size bytes";
 264
 265 =for later
 266
 267                 open(my $fh, "gzip -cd $path |") or die "can't open $path: $!";
 268                 binmode($fh);
 269                 my $tar = Archive::Tar::Streamed->new($fh);
 270
 271                 my $tar_size_inarc = 0;
 272                 my $items = 0;
 273
 274                 while(my $entry = $tar->next) {
 275                         push @tar_files, $entry->name;
 276                         $items++;
 277                         $tar_size_inarc += $entry->size;
 278
 279                         if ($tar_size_inarc > $Conf{ArchiveMediaSize}) {
 280                                 print ", part $filename is too big $tar_size_inarc > $Conf{ArchiveMediaSize}\n";
 281                                 return 0;
 282                         }
 283
 284                 }
 285
 286                 close($fh);
 287
 288                 print ", $items items";
 289
 290                 if ($tar_size_inarc == 0 && $items == 0) {
 291                         print ", EMPTY tar\n";
 292
 293                         my $backup_id = get_backup_id($host, $share, $num);
 294                         backup_inc_deleted( $backup_id );
 295
 296                         $dbh->commit;
 297
 298                         return 1;
 299                 }
 300
 301 =cut
 302
 303                 # FIXME
 304                 my $tar_size = get_gzip_size( $path );
 305
 306                 #
 307                 # finally, check if backup_parts table in database is valid
 308                 #
 309
 310                 my $md5 = $md5sum->{$filename} || die "no md5sum for $filename in ",dump($md5sum);
 311                 my $items = 1;
 312                 $part_nr++;
 313
 314                 check_part($host, $num, $part_nr, $tar_size, $size, $md5, $items, $filename);
 315
 316                 # round increment size to 2k block size
 317                 $inc_size += int((($size + 2048) / 2048 ) * 2048);
 318         }
 319
 320         $sth_inc_size->execute(
 321                 $inc_size,
 322                 $part_nr,
 323                 get_backup_id($host, $num),
 324         );
 325         $dbh->commit;
 326
 327         @tar_files = sort @tar_files;
 328         print "\n\t",($#tar_files + 1), " tar files";
 329
 330         my $sth = $dbh->prepare(qq{
 331                 SELECT path,type
 332                 FROM files
 333                 JOIN shares on shares.id = shareid
 334                 JOIN hosts on hosts.id = shares.hostid
 335                 WHERE hosts.name = ? and backupnum = ?
 336         });
 337         $sth->execute($host, $num);
 338         my @db_files;
 339         while( my $row = $sth->fetchrow_hashref ) {
 340
 341                 my $path = $row->{'path'} || die "no path?";
 342                 $path =~ s#^/#./#;
 343                 $path .= '/' if ($row->{'type'} == BPC_FTYPE_DIR);
 344                 push @db_files, $path;
 345         }
 346
 347         print " ",($#db_files + 1), " database files, diff";
 348
 349         @db_files = sort @db_files;
 350
 351         my $same = 1;
 352
 353         if ($#tar_files != $#db_files) {
 354                 $same = 0;
 355                 print " NUMBER";
 356         } else {
 357                 my $diff = Algorithm::Diff->new(\@tar_files, \@db_files);
 358                 while ( $diff->Next() ) {
 359                         next if $diff->Same();
 360                         $same = 0;
 361                         print "< $_\n" for $diff->Items(1);
 362                         print "> $_\n" for $diff->Items(2);
 363                 }
 364         }
 365
 366         print " ",($same ? 'ok' : 'DIFFERENT'),
 367                 ", dur: ",fmt_time(time() - $t), "\n";
 368
 369         return $same;
 370 }
 371
 372
 373 #----- main
 374
 375 foreach ( 0 .. $#{ $opt->host } ) {
 376
 377         my $host = $opt->host->[$_];
 378         my $num  = $opt->num->[$_];
 379
 380         check_archive $host => $num;
 381
 382 }
 383
 384 exit; # FIXME
 385
 386 my $sth = $dbh->prepare( qq{
 387
 388 select
 389         backups.id as backup_id,
 390         hosts.name as host,
 391         shares.name as share,
 392         backups.num as num,
 393         backups.date,
 394         inc_size,
 395         parts,
 396         count(backup_parts.backup_id) as backup_parts
 397 from backups
 398         join shares on backups.hostid = shares.hostid
 399                 and shares.id = backups.shareid
 400         join hosts on shares.hostid = hosts.id
 401         full outer join backup_parts on backups.id = backup_parts.backup_id
 402 where not inc_deleted and backups.size > 0
 403 group by backups.id, hosts.name, shares.name, backups.num, backups.date, inc_size, parts, backup_parts.backup_id
 404 order by backups.date
 405
 406 } );
 407
 408 $sth->execute();
 409 my $num_backups = $sth->rows;
 410 my $curr_backup = 1;
 411
 412 while (my $row = $sth->fetchrow_hashref) {
 413
 414         $curr_backup++;
 415
 416         my $tar_file = BackupPC::Search::getGzipName($row->{'host'}, $row->{'share'}, $row->{'num'});
 417
 418         # this will return -1 if file doesn't exist
 419         my $size = BackupPC::Search::get_tgz_size_by_name($tar_file);
 420
 421         print "# host: ".$row->{host}.", share: ".$row->{'share'}.", backup_num:".$row->{num}." size: $size backup.size: ", $row->{inc_size},"\n" if $opt->debug;
 422
 423         if ( $row->{'inc_size'} != -1 && $size != -1 && $row->{'inc_size'} >= $size && $row->{parts} == $row->{backup_parts}) {
 424                 if ($opt->check) {
 425                         tar_check($row->{'host'}, $row->{'share'}, $row->{'num'}, $tar_file) && next;
 426                 } else {
 427                         next;
 428                 }
 429         }
 430
 431         print curr_time, " creating $curr_backup/$num_backups ", $row->{host}, ":", $row->{share}, " #", $row->{num},
 432                 " ", strftime('%Y-%m-%d', localtime($row->{date})), " -> $tar_file";
 433
 434         my $t = time();
 435
 436 =for later
 437         # re-create archive?
 438         my $cmd = qq[ $tarIncCreate -h "$row->{host}" -s "$row->{share}" -n $row->{num} -f ];
 439         print STDERR "## $cmd\n" if ($opt->debug);
 440
 441         if (system($cmd) != 0) {
 442                 print STDERR " FAILED, marking this backup deleted";
 443                 backup_inc_deleted( $row->{backup_id} );
 444         }
 445 =cut
 446
 447         print ", dur: ",fmt_time(time() - $t), "\n";
 448
 449         $dbh->commit;
 450
 451 }
 452
 453 undef $sth;
 454 $dbh->disconnect;