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