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 = $dbh->prepare(qq{
 116         update backups set
 117                 inc_size = ?,
 118                 parts = ?,
 119                 inc_deleted = false
 120         where id = ?
 121 });
 122
 123 sub check_archive {
 124         my ($host,$num) = @_;
 125         warn "# check_archive $host $num";
 126
 127         my $t = time();
 128
 129         my $glob = "$Conf{ArchiveDest}/$host.$num.*";
 130
 131         my @tar_parts = sort map { s/^\Q$Conf{ArchiveDest}\E\/*//; $_ } glob $glob ;
 132
 133         if ( ! @tar_parts ) {
 134                 warn "ERROR: no files for $glob";
 135                 return;
 136         }
 137
 138         print curr_time, " check $host $num";
 139
 140         my $md5_path = "$Conf{ArchiveDest}/$host.$num.md5";
 141         unlink $md5_path if -s $md5_path == 0; # fix empty
 142
 143         my $read_protect = 0;
 144
 145         if ( ! -e $md5_path ) {
 146                 system_ok "cd $Conf{ArchiveDest} && /usr/bin/md5sum $host.$num.* > $md5_path";
 147                 $read_protect = 1;
 148         } else {
 149                 system_ok "cd $Conf{ArchiveDest} && /usr/bin/md5sum -c $md5_path" if $opt->check;
 150         }
 151
 152         my $md5sum;
 153         foreach ( split(/\n/, read_file "$Conf{ArchiveDest}/$host.$num.md5" ) ) {
 154                 my ( $md5, $path ) = split(/\s+/,$_);
 155                 $md5sum->{$path} = $md5;
 156                 if ( $read_protect ) {
 157                         my $full = "$Conf{ArchiveDest}/$path";
 158                         my $perm = (stat $full)[2] & 0444;
 159                         warn sprintf("chmod %03o %s\n",$perm,$full);
 160                         chmod $perm, $full;
 161                 }
 162         }
 163
 164         # depending on expected returned value this is used like:
 165         # my $uncompress_size = get_gzip_size('/full/path/to.gz');
 166         # my ($compress_size, $uncompress_size) = get_gzip_size('/path.gz');
 167         sub get_gzip_size($) {
 168                 my $filename = shift;
 169                 die "file $filename problem: $!" unless (-r $filename);
 170
 171                 if ( $filename !~ m/\.gz$/ ) {
 172                         return -s $filename;
 173                 }
 174
 175                 open(my $gzip, $Conf{GzipPath}." -l $filename |") || die "can't gzip -l $filename: $!";
 176                 local $/ = undef;
 177                 my $line = <$gzip>;
 178                 close($gzip);
 179
 180                 my ($comp, $uncomp) = (0,0);
 181
 182                 if ($line =~ m/\s+(\d+)\s+(\d+)\s+\d+\.\d+/s) {
 183                         if (wantarray) {
 184                                 return [ $1, $2 ];
 185                         } else {
 186                                 return $2;
 187                         }
 188                 } else {
 189                         warn "ERROR can't parse: $line";
 190                         return -s $filename;
 191                 }
 192         }
 193
 194         sub check_part {
 195                 my ($host, $num, $part_nr, $tar_size, $size, $md5, $items, $filename) = @_;
 196                 my $backup_id = get_backup_id($host, $num);
 197                 my $sth_md5 = $dbh->prepare(qq{
 198                         select
 199                                 id, tar_size, size, md5, items, filename
 200                         from backup_parts
 201                         where backup_id = ? and part_nr = ? and filename = ?
 202                 });
 203
 204                 $sth_md5->execute($backup_id, $part_nr, $filename);
 205
 206                 if (my $row = $sth_md5->fetchrow_hashref) {
 207                         return if (
 208                                 $row->{tar_size} >= $tar_size &&
 209                                 $row->{size} == $size &&
 210                                 $row->{md5} eq $md5 &&
 211                                 $row->{items} == $items
 212                         );
 213                         print ", deleting invalid backup_parts $row->{id}";
 214                         $dbh->do(qq{ delete from backup_parts where id = $row->{id} });
 215                 }
 216                 print ", inserting new";
 217                 my $sth_insert = $dbh->prepare(qq{
 218                         insert into backup_parts (
 219                                 backup_id,
 220                                 part_nr,
 221                                 tar_size,
 222                                 size,
 223                                 md5,
 224                                 items,
 225                                 filename
 226                         ) values (?,?,?,?,?,?,?)
 227                 });
 228
 229                 $sth_insert->execute($backup_id, $part_nr, $tar_size, $size, $md5, $items, $filename);
 230                 $dbh->commit;
 231         }
 232
 233         print " [parts: ",join(", ", @tar_parts),"]" if $opt->debug;
 234
 235         my @tar_files;
 236
 237         my $backup_part;
 238
 239         print " reading" if $opt->debug;
 240
 241         my $part_nr = 0;
 242         my $inc_size = 0;
 243
 244         foreach my $filename (@tar_parts) {
 245
 246                 next if $filename eq "$host.$num.md5";
 247
 248                 print "\n\t- $filename";
 249
 250                 my $path = "$Conf{ArchiveDest}/$filename";
 251                 $path =~ s{//+}{/}g;
 252
 253                 my $size = (stat( $path ))[7] || die "can't stat $path: $!";
 254
 255                 if ($size > $Conf{ArchiveMediaSize}) {
 256                         print ", part bigger than media $size > $Conf{ArchiveMediaSize}\n";
 257                         return 0;
 258                 }
 259
 260                 print ", $size bytes";
 261
 262 =for later
 263
 264                 open(my $fh, "gzip -cd $path |") or die "can't open $path: $!";
 265                 binmode($fh);
 266                 my $tar = Archive::Tar::Streamed->new($fh);
 267
 268                 my $tar_size_inarc = 0;
 269                 my $items = 0;
 270
 271                 while(my $entry = $tar->next) {
 272                         push @tar_files, $entry->name;
 273                         $items++;
 274                         $tar_size_inarc += $entry->size;
 275
 276                         if ($tar_size_inarc > $Conf{ArchiveMediaSize}) {
 277                                 print ", part $filename is too big $tar_size_inarc > $Conf{ArchiveMediaSize}\n";
 278                                 return 0;
 279                         }
 280
 281                 }
 282
 283                 close($fh);
 284
 285                 print ", $items items";
 286
 287                 if ($tar_size_inarc == 0 && $items == 0) {
 288                         print ", EMPTY tar\n";
 289
 290                         my $backup_id = get_backup_id($host, $share, $num);
 291                         backup_inc_deleted( $backup_id );
 292
 293                         $dbh->commit;
 294
 295                         return 1;
 296                 }
 297
 298 =cut
 299
 300                 # FIXME
 301                 my $tar_size = get_gzip_size( $path );
 302
 303                 #
 304                 # finally, check if backup_parts table in database is valid
 305                 #
 306
 307                 my $md5 = $md5sum->{$filename} || die "no md5sum for $filename in ",dump($md5sum);
 308                 my $items = 1;
 309                 $part_nr++;
 310
 311                 check_part($host, $num, $part_nr, $tar_size, $size, $md5, $items, $filename);
 312
 313                 # round increment size to 2k block size
 314                 $inc_size += int((($size + 2048) / 2048 ) * 2048);
 315         }
 316
 317         $sth_inc_size->execute(
 318                 $inc_size,
 319                 $part_nr,
 320                 get_backup_id($host, $num),
 321         );
 322         $dbh->commit;
 323
 324         @tar_files = sort @tar_files;
 325         print "\n\t",($#tar_files + 1), " tar files";
 326
 327         my $sth = $dbh->prepare(qq{
 328                 SELECT path,type
 329                 FROM files
 330                 JOIN shares on shares.id = shareid
 331                 JOIN hosts on hosts.id = shares.hostid
 332                 WHERE hosts.name = ? and backupnum = ?
 333         });
 334         $sth->execute($host, $num);
 335         my @db_files;
 336         while( my $row = $sth->fetchrow_hashref ) {
 337
 338                 my $path = $row->{'path'} || die "no path?";
 339                 $path =~ s#^/#./#;
 340                 $path .= '/' if ($row->{'type'} == BPC_FTYPE_DIR);
 341                 push @db_files, $path;
 342         }
 343
 344         print " ",($#db_files + 1), " database files, diff";
 345
 346         @db_files = sort @db_files;
 347
 348         my $same = 1;
 349
 350         if ($#tar_files != $#db_files) {
 351                 $same = 0;
 352                 print " NUMBER";
 353         } else {
 354                 my $diff = Algorithm::Diff->new(\@tar_files, \@db_files);
 355                 while ( $diff->Next() ) {
 356                         next if $diff->Same();
 357                         $same = 0;
 358                         print "< $_\n" for $diff->Items(1);
 359                         print "> $_\n" for $diff->Items(2);
 360                 }
 361         }
 362
 363         print " ",($same ? 'ok' : 'DIFFERENT'),
 364                 ", dur: ",fmt_time(time() - $t), "\n";
 365
 366         return $same;
 367 }
 368
 369
 370 #----- main
 371
 372 foreach ( 0 .. $#{ $opt->host } ) {
 373
 374         my $host = $opt->host->[$_];
 375         my $num  = $opt->num->[$_];
 376
 377         check_archive $host => $num;
 378
 379 }
 380
 381 exit; # FIXME
 382
 383 my $sth = $dbh->prepare( qq{
 384
 385 select
 386         backups.id as backup_id,
 387         hosts.name as host,
 388         shares.name as share,
 389         backups.num as num,
 390         backups.date,
 391         inc_size,
 392         parts,
 393         count(backup_parts.backup_id) as backup_parts
 394 from backups
 395         join shares on backups.hostid = shares.hostid
 396                 and shares.id = backups.shareid
 397         join hosts on shares.hostid = hosts.id
 398         full outer join backup_parts on backups.id = backup_parts.backup_id
 399 where not inc_deleted and backups.size > 0
 400 group by backups.id, hosts.name, shares.name, backups.num, backups.date, inc_size, parts, backup_parts.backup_id
 401 order by backups.date
 402
 403 } );
 404
 405 $sth->execute();
 406 my $num_backups = $sth->rows;
 407 my $curr_backup = 1;
 408
 409 while (my $row = $sth->fetchrow_hashref) {
 410
 411         $curr_backup++;
 412
 413         my $tar_file = BackupPC::Search::getGzipName($row->{'host'}, $row->{'share'}, $row->{'num'});
 414
 415         # this will return -1 if file doesn't exist
 416         my $size = BackupPC::Search::get_tgz_size_by_name($tar_file);
 417
 418         print "# host: ".$row->{host}.", share: ".$row->{'share'}.", backup_num:".$row->{num}." size: $size backup.size: ", $row->{inc_size},"\n" if $opt->debug;
 419
 420         if ( $row->{'inc_size'} != -1 && $size != -1 && $row->{'inc_size'} >= $size && $row->{parts} == $row->{backup_parts}) {
 421                 if ($opt->check) {
 422                         tar_check($row->{'host'}, $row->{'share'}, $row->{'num'}, $tar_file) && next;
 423                 } else {
 424                         next;
 425                 }
 426         }
 427
 428         print curr_time, " creating $curr_backup/$num_backups ", $row->{host}, ":", $row->{share}, " #", $row->{num},
 429                 " ", strftime('%Y-%m-%d', localtime($row->{date})), " -> $tar_file";
 430
 431         my $t = time();
 432
 433 =for later
 434         # re-create archive?
 435         my $cmd = qq[ $tarIncCreate -h "$row->{host}" -s "$row->{share}" -n $row->{num} -f ];
 436         print STDERR "## $cmd\n" if ($opt->debug);
 437
 438         if (system($cmd) != 0) {
 439                 print STDERR " FAILED, marking this backup deleted";
 440                 backup_inc_deleted( $row->{backup_id} );
 441         }
 442 =cut
 443
 444         print ", dur: ",fmt_time(time() - $t), "\n";
 445
 446         $dbh->commit;
 447
 448 }
 449
 450 undef $sth;
 451 $dbh->disconnect;