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