This file is indexed.

/usr/sbin/rt-validator-4 is in request-tracker4 4.0.7-5+deb7u4.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
#!/usr/bin/perl
# BEGIN BPS TAGGED BLOCK {{{
#
# COPYRIGHT:
#
# This software is Copyright (c) 1996-2012 Best Practical Solutions, LLC
#                                          <sales@bestpractical.com>
#
# (Except where explicitly superseded by other copyright notices)
#
#
# LICENSE:
#
# This work is made available to you under the terms of Version 2 of
# the GNU General Public License. A copy of that license should have
# been provided with this software, but in any event can be snarfed
# from www.gnu.org.
#
# This work 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 or visit their web page on the internet at
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
#
#
# CONTRIBUTION SUBMISSION POLICY:
#
# (The following paragraph is not intended to limit the rights granted
# to you to modify and distribute this software under the terms of
# the GNU General Public License and is only of importance to you if
# you choose to contribute your changes and enhancements to the
# community by submitting them to Best Practical Solutions, LLC.)
#
# By intentionally submitting any modifications, corrections or
# derivatives to this work, or any other work intended for use with
# Request Tracker, to Best Practical Solutions, LLC, you confirm that
# you are the copyright holder for those contributions and you grant
# Best Practical Solutions,  LLC a nonexclusive, worldwide, irrevocable,
# royalty-free, perpetual, license to use, copy, create derivative
# works based on those contributions, and sublicense and distribute
# those contributions and any derivatives thereof.
#
# END BPS TAGGED BLOCK }}}
use strict;
use warnings;

# fix lib paths, some may be relative
BEGIN {
    require File::Spec;
    my @libs = ("/usr/share/request-tracker4/lib", "/usr/local/share/request-tracker4/lib");
    my $bin_path;

    for my $lib (@libs) {
        unless ( File::Spec->file_name_is_absolute($lib) ) {
            unless ($bin_path) {
                if ( File::Spec->file_name_is_absolute(__FILE__) ) {
                    $bin_path = ( File::Spec->splitpath(__FILE__) )[1];
                }
                else {
                    require FindBin;
                    no warnings "once";
                    $bin_path = $FindBin::Bin;
                }
            }
            $lib = File::Spec->catfile( $bin_path, File::Spec->updir, $lib );
        }
        unshift @INC, $lib;
    }

}

use Getopt::Long;
my %opt = ();
GetOptions(
    \%opt,
    'check|c',
    'resolve',
    'force',
    'verbose|v',
    'help|h',
);

if ( $opt{help} || !$opt{check} ) {
    require Pod::Usage;
    print Pod::Usage::pod2usage( { verbose => 2 } );
    exit;
}

usage_warning() if $opt{'resolve'} && !$opt{'force'};


sub usage_warning {
    print <<END;
This utility can fix some issues with DB by creating or updating. In some
cases there is no enough data to resurect a missing record, but records which
refers to a missing can be deleted. It's up to you to decide what to do.

In any case it's highly recommended to have a backup before resolving anything.

Press enter to continue.
END
# Read a line of text, any line of text
    <STDIN>;
}

use RT;
RT::LoadConfig();
RT::Init();

my $dbh = $RT::Handle->dbh;
my $db_type = RT->Config->Get('DatabaseType');

my %TYPE = (
    'Transactions.Field'    => 'text',
    'Transactions.OldValue' => 'text',
    'Transactions.NewValue' => 'text',
);

my @models = qw(
    ACE
    Attachment
    Attribute
    CachedGroupMember
    CustomField
    CustomFieldValue
    GroupMember
    Group
    Link
    ObjectCustomField
    ObjectCustomFieldValue
    Principal
    Queue
    ScripAction
    ScripCondition
    Scrip
    Template
    Ticket
    Transaction
    User
);

my %redo_on;
$redo_on{'Delete'} = {
    ACL => [],

    Attributes => [],

    Links => [],

    CustomFields => [],
    CustomFieldValues => [],
    ObjectCustomFields => [],
    ObjectCustomFieldValues => [],

    Queues => [],

    Scrips => [],
    ScripActions => [],
    ScripConditions => [],
    Templates => [],

    Tickets => [ 'Tickets -> other', 'Tickets <-> Role Groups' ],
    Transactions => [ 'Attachments -> other' ],

    Principals => ['User <-> ACL equivalence group', 'GMs -> Groups, Members' ],
    Users => ['User <-> ACL equivalence group', 'GMs -> Groups, Members', 'Principals -> Users' ],
    Groups => ['User <-> ACL equivalence group', 'GMs -> Groups, Members', 'CGM vs. GM', 'Principals -> Groups' ],

    GroupMembers => [ 'CGM vs. GM' ],
    CachedGroupMembers => [ 'CGM vs. GM' ],
};
$redo_on{'Create'} = {
    Principals => ['User <-> ACL equivalence group', 'GMs -> Groups, Members' ],
    Groups => ['User <-> ACL equivalence group', 'GMs -> Groups, Members', 'CGM vs. GM' ],
    GroupMembers => [ 'CGM vs. GM' ],
    CachedGroupMembers => [ 'CGM vs. GM' ],
};
$redo_on{'Update'} = {
    Groups => ['User Defined Group Name uniqueness'],
};

my %describe_cb;
%describe_cb = (
    Attachments => sub {
        my $row = shift;
        my $txn_id = $row->{transactionid};
        my $res = 'Attachment #'. $row->{id} .' -> Txn #'. $txn_id;
        return $res .', '. describe( 'Transactions', $txn_id );
    },
    Transactions => sub {
        my $row = shift;
        return 'Transaction #'. $row->{id} .' -> object '. $row->{objecttype} .' #'. $row->{objectid};
    },
);

{ my %cache = ();
sub m2t($) {
    my $model = shift;
    return $cache{$model} if $cache{$model};
    my $class = "RT::$model";
    my $object = $class->new( RT->SystemUser );
    return $cache{$model} = $object->Table;
} }

my (@do_check, %redo_check);

my @CHECKS;
foreach my $table ( qw(Users Groups) ) {
    push @CHECKS, "$table -> Principals" => sub {
        my $msg = "A record in $table refers to a nonexistent record in Principals."
            ." The script can either create the missing record in Principals"
            ." or delete the record in $table.";
        my ($type) = ($table =~ /^(.*)s$/);
        check_integrity(
            $table, 'id' => 'Principals', 'id',
            join_condition => 't.PrincipalType = ?',
            bind_values => [ $type ],
            action => sub {
                my $id = shift;
                return unless my $a = prompt_action( ['Delete', 'create'], $msg );

                if ( $a eq 'd' ) {
                    delete_record( $table, $id );
                }
                elsif ( $a eq 'c' ) {
                    my $principal_id = create_record( 'Principals',
                        id => $id, PrincipalType => $type, ObjectId => $id, Disabled => 0
                    );
                }
                else {
                    die "Unknown action '$a'";
                }
            },
        );
    };

    push @CHECKS, "Principals -> $table" => sub {
        my $msg = "A record in Principals refers to a nonexistent record in $table."
            ." In some cases it's possible to manually resurrect such records,"
            ." but this utility can only delete records.";

        check_integrity(
            'Principals', 'id' => $table, 'id',
            condition   => 's.PrincipalType = ?',
            bind_values => [ $table =~ /^(.*)s$/ ],
            action => sub {
                my $id = shift;
                return unless prompt( 'Delete', $msg );

                delete_record( 'Principals', $id );
            },
        );
    };
}

push @CHECKS, 'User <-> ACL equivalence group' => sub {
    # from user to group
    check_integrity(
        'Users', 'id' => 'Groups', 'Instance',
        join_condition   => 't.Domain = ? AND t.Type = ?',
        bind_values => [ 'ACLEquivalence',  'UserEquiv' ],
        action => sub {
            my $id = shift;
            return unless prompt(
                'Create', "Found an user that has no ACL equivalence group."
            );

            my $gid = create_record( 'Groups',
                Domain => 'ACLEquivalence', Type => 'UserEquiv', Instance => $id,
            );
        },
    );
    # from group to user
    check_integrity(
        'Groups', 'Instance' => 'Users', 'id',
        condition   => 's.Domain = ? AND s.Type = ?',
        bind_values => [ 'ACLEquivalence',  'UserEquiv' ],
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete', "Found an user ACL equivalence group, but there is no user."
            );

            delete_record( 'Groups', $id );
        },
    );
    # one ACL equiv group for each user
    check_uniqueness(
        'Groups',
        columns     => ['Instance'],
        condition   => '.Domain = ? AND .Type = ?',
        bind_values => [ 'ACLEquivalence',  'UserEquiv' ],
    );
};

# check integrity of Queue role groups
push @CHECKS, 'Queues <-> Role Groups' => sub {
    # XXX: we check only that there is at least one group for a queue
    # from queue to group
    check_integrity(
        'Queues', 'id' => 'Groups', 'Instance',
        join_condition   => 't.Domain = ?',
        bind_values => [ 'RT::Queue-Role' ],
    );
    # from group to queue
    check_integrity(
        'Groups', 'Instance' => 'Queues', 'id',
        condition   => 's.Domain = ?',
        bind_values => [ 'RT::Queue-Role' ],
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete', "Found a role group of a nonexistent queue."
            );

            delete_record( 'Groups', $id );
        },
    );
};

# check integrity of Ticket role groups
push @CHECKS, 'Tickets <-> Role Groups' => sub {
    # XXX: we check only that there is at least one group for a queue
    # from queue to group
    check_integrity(
        'Tickets', 'id' => 'Groups', 'Instance',
        join_condition   => 't.Domain = ?',
        bind_values => [ 'RT::Ticket-Role' ],
    );
    # from group to ticket
    check_integrity(
        'Groups', 'Instance' => 'Tickets', 'id',
        condition   => 's.Domain = ?',
        bind_values => [ 'RT::Ticket-Role' ],
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete', "Found a role group of a nonexistent ticket."
            );

            delete_record( 'Groups', $id );
        },
    );
};

# additional CHECKS on groups
push @CHECKS, 'Role Groups (Instance, Type) uniqueness' => sub {
    # Check that Domain, Instance and Type are unique
    check_uniqueness(
        'Groups',
        columns     => ['Domain', 'Instance', 'Type'],
        condition   => '.Domain LIKE ?',
        bind_values => [ '%-Role' ],
    );
};

push @CHECKS, 'System internal group uniqueness' => sub {
    check_uniqueness(
        'Groups',
        columns     => ['Instance', 'Type'],
        condition   => '.Domain = ?',
        bind_values => [ 'SystemInternal' ],
    );
};

# CHECK that user defined group names are unique
push @CHECKS, 'User Defined Group Name uniqueness' => sub {
    check_uniqueness(
        'Groups',
        columns         => ['Name'],
        condition       => '.Domain = ?',
        bind_values     => [ 'UserDefined' ],
        extra_tables    => ['Principals sp', 'Principals tp'],
        extra_condition => join(" and ", map { "$_.id = ${_}p.ObjectId and ${_}p.PrincipalType = ? and ${_}p.Disabled != 1" } qw(s t)),
        extra_values    => ['Group', 'Group'],
        action          => sub {
            return unless prompt(
                'Rename', "Found a user defined group with a non-unique Name."
            );

            my $id = shift;
            my %cols = @_;
            update_records('Groups', { id => $id }, { Name => join('-', $cols{'Name'}, $id) });
        },
    );
};

push @CHECKS, 'GMs -> Groups, Members' => sub {
    my $msg = "A record in GroupMembers references an object that doesn't exist."
        ." Maybe you deleted a group or principal directly from the database?"
        ." Usually it's OK to delete such records.";
    check_integrity(
        'GroupMembers', 'GroupId' => 'Groups', 'id',
        action => sub {
            my $id = shift;
            return unless prompt( 'Delete', $msg );

            delete_record( 'GroupMembers', $id );
        },
    );
    check_integrity(
        'GroupMembers', 'MemberId' => 'Principals', 'id',
        action => sub {
            my $id = shift;
            return unless prompt( 'Delete', $msg );

            delete_record( 'GroupMembers', $id );
        },
    );
};

# CGM and GM
push @CHECKS, 'CGM vs. GM' => sub {
    # all GM record should be duplicated in CGM
    check_integrity(
        GroupMembers       => ['GroupId', 'MemberId'],
        CachedGroupMembers => ['GroupId', 'MemberId'],
        join_condition     => 't.ImmediateParentId = t.GroupId AND t.Via = t.id',
        action => sub {
            my $id = shift;
            return unless prompt(
                'Create',
                "Found a record in GroupMembers that has no direct duplicate in CachedGroupMembers table."
            );

            my $gm = RT::GroupMember->new( RT->SystemUser );
            $gm->Load( $id );
            die "Couldn't load GM record #$id" unless $gm->id;
            my $cgm = create_record( 'CachedGroupMembers',
                GroupId => $gm->GroupId, MemberId => $gm->MemberId,
                ImmediateParentId => $gm->GroupId, Via => undef,
                Disabled => 0, # XXX: we should check integrity of Disabled field
            );
            update_records( "CachedGroupMembers", { id => $cgm }, { Via => $cgm } );
        },
    );
    # all first level CGM records should have a GM record
    check_integrity(
        CachedGroupMembers => ['GroupId', 'MemberId'],
        GroupMembers       => ['GroupId', 'MemberId'],
        condition     => 's.ImmediateParentId = s.GroupId AND s.Via = s.id AND s.GroupId != s.MemberId',
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete',
                "Found a record in CachedGroupMembers for a (Group, Member) pair"
                ." that doesn't exist in the GroupMembers table."
            );

            delete_record( 'CachedGroupMembers', $id );
        },
    );
    # each group should have a CGM record where MemberId == GroupId
    check_integrity(
        Groups => ['id', 'id'],
        CachedGroupMembers => ['GroupId', 'MemberId'],
        join_condition     => 't.ImmediateParentId = t.GroupId AND t.Via = t.id',
        action => sub {
            my $id = shift;
            return unless prompt(
                'Create',
                "Found a record in Groups that has no direct"
                ." duplicate in CachedGroupMembers table."
            );

            my $g = RT::Group->new( RT->SystemUser );
            $g->Load( $id );
            die "Couldn't load group #$id" unless $g->id;
            die "Loaded group by $id has id ". $g->id  unless $g->id == $id;
            my $cgm = create_record( 'CachedGroupMembers',
                GroupId => $id, MemberId => $id,
                ImmediateParentId => $id, Via => undef,
                Disabled => $g->Disabled,
            );
            update_records( "CachedGroupMembers", { id => $cgm }, { Via => $cgm } );
        },
    );

    # and back, each record in CGM with MemberId == GroupId without exceptions
    # should reference a group
    check_integrity(
        CachedGroupMembers => ['GroupId', 'MemberId'],
        Groups => ['id', 'id'],
        condition => "s.GroupId = s.MemberId",
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete',
                "Found a record in CachedGroupMembers for a group that doesn't exist."
            );

            delete_record( 'CachedGroupMembers', $id );
        },
    );
    # Via
    check_integrity(
        CachedGroupMembers => 'Via',
        CachedGroupMembers => 'id',
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete',
                "Found a record in CachedGroupMembers with Via that references a nonexistent record."
            );

            delete_record( 'CachedGroupMembers', $id );
        },
    );

    # for every CGM where ImmediateParentId != GroupId there should be
    # matching parent record (first level) 
    check_integrity(
        CachedGroupMembers => ['ImmediateParentId', 'MemberId'],
        CachedGroupMembers => ['GroupId', 'MemberId'],
        join_condition => 't.Via = t.id',
        condition => 's.ImmediateParentId != s.GroupId',
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete',
                "Found a record in CachedGroupMembers that references a nonexistent record in CachedGroupMembers table."
            );

            delete_record( 'CachedGroupMembers', $id );
        },
    );

    # for every CGM where ImmediateParentId != GroupId there should be
    # matching "grand" parent record
    check_integrity(
        CachedGroupMembers => ['GroupId', 'ImmediateParentId', 'Via'],
        CachedGroupMembers => ['GroupId', 'MemberId', 'id'],
        condition => 's.ImmediateParentId != s.GroupId',
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete',
                "Found a record in CachedGroupMembers that references a nonexistent record in CachedGroupMembers table."
            );

            delete_record( 'CachedGroupMembers', $id );
        },
    );

    # CHECK recursive records:
    # if we have CGM1 (G1,M1,V1,IP1) then for every GM2(G2, M2), where G2 == M1,
    # we should have CGM3 where G3 = G1, M3 = M2, V3 = ID1, IP3 = M1
    {
        my $query = <<END;
SELECT cgm1.GroupId, gm2.MemberId, cgm1.id AS Via,
    cgm1.MemberId AS ImmediateParentId, cgm1.Disabled
FROM
    CachedGroupMembers cgm1
    CROSS JOIN GroupMembers gm2
    LEFT JOIN CachedGroupMembers cgm3 ON (
            cgm3.GroupId           = cgm1.GroupId
        AND cgm3.MemberId          = gm2.MemberId
        AND cgm3.Via               = cgm1.id
        AND cgm3.ImmediateParentId = cgm1.MemberId )
WHERE cgm1.GroupId != cgm1.MemberId
AND gm2.GroupId = cgm1.MemberId
AND cgm3.id IS NULL
END

        my $action = sub {
            my %props = @_;
            return unless prompt(
                'Create',
                "Found records in CachedGroupMembers table without recursive duplicates."
            );
            my $cgm = create_record( 'CachedGroupMembers', %props );
        };

        my $sth = execute_query( $query );
        while ( my ($g, $m, $via, $ip, $dis) = $sth->fetchrow_array ) {
            print STDERR "Principal #$m is member of #$ip when #$ip is member of #$g,";
            print STDERR " but there is no cached GM record that $m is member of #$g.\n";
            $action->(
                GroupId => $g, MemberId => $m, Via => $via,
                ImmediateParentId => $ip, Disabled => $dis,
            );
        }
    }
};

# Tickets
push @CHECKS, 'Tickets -> other' => sub {
    check_integrity(
        'Tickets', 'EffectiveId' => 'Tickets', 'id',
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete',
                "Found a ticket that's been merged into a ticket that no longer exists."
            );

            delete_record( 'Tickets', $id );
        },
    );
    check_integrity(
        'Tickets', 'Queue' => 'Queues', 'id',
    );
    check_integrity(
        'Tickets', 'Owner' => 'Users', 'id',
    );
    # XXX: check that owner is only member of owner role group
};


push @CHECKS, 'Transactions -> other' => sub {
    foreach my $model ( @models ) {
        check_integrity(
            'Transactions', 'ObjectId' => m2t($model), 'id',
            condition   => 's.ObjectType = ?',
            bind_values => [ "RT::$model" ],
            action => sub {
                my $id = shift;
                return unless prompt(
                    'Delete', "Found a transaction without object."
                );

                delete_record( 'Transactions', $id );
            },
        );
    }
    # type = CustomField
    check_integrity(
        'Transactions', 'Field' => 'CustomFields', 'id',
        condition   => 's.Type = ?',
        bind_values => [ 'CustomField' ],
    );
    # type = Take, Untake, Force, Steal or Give
    check_integrity(
        'Transactions', 'OldValue' => 'Users', 'id',
        condition   => 's.Type IN (?, ?, ?, ?, ?)',
        bind_values => [ qw(Take Untake Force Steal Give) ],
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete', "Found a transaction regarding Owner changes,"
                ." but the User with id stored in OldValue column doesn't exist anymore."
            );

            delete_record( 'Transactions', $id );
        },
    );
    check_integrity(
        'Transactions', 'NewValue' => 'Users', 'id',
        condition   => 's.Type IN (?, ?, ?, ?, ?)',
        bind_values => [ qw(Take Untake Force Steal Give) ],
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete', "Found a transaction regarding Owner changes,"
                ." but the User with id stored in NewValue column doesn't exist anymore."
            );

            delete_record( 'Transactions', $id );
        },
    );
    # type = DelWatcher
    check_integrity(
        'Transactions', 'OldValue' => 'Principals', 'id',
        condition   => 's.Type = ?',
        bind_values => [ 'DelWatcher' ],
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete', "Found a transaction describing watcher changes,"
                ." but the User with id stored in OldValue column doesn't exist anymore."
            );

            delete_record( 'Transactions', $id );
        },
    );
    # type = AddWatcher
    check_integrity(
        'Transactions', 'NewValue' => 'Principals', 'id',
        condition   => 's.Type = ?',
        bind_values => [ 'AddWatcher' ],
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete', "Found a transaction describing watcher changes,"
                ." but the User with id stored in NewValue column doesn't exist anymore."
            );

            delete_record( 'Transactions', $id );
        },
    );

# XXX: Links need more love, uri is stored instead of id
#    # type = DeleteLink
#    check_integrity(
#        'Transactions', 'OldValue' => 'Links', 'id',
#        condition   => 's.Type = ?',
#        bind_values => [ 'DeleteLink' ],
#    );
#    # type = AddLink
#    check_integrity(
#        'Transactions', 'NewValue' => 'Links', 'id',
#        condition   => 's.Type = ?',
#        bind_values => [ 'AddLink' ],
#    );

    # type = Set, Field = Queue
    check_integrity(
        'Transactions', 'NewValue' => 'Queues', 'id',
        condition   => 's.Type = ? AND s.Field = ?',
        bind_values => [ 'Set', 'Queue' ],
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete', "Found a transaction describing a queue change,"
                ." but the Queue with id stored in the NewValue column doesn't exist anymore."
            );

            delete_record( 'Transactions', $id );
        },
    );
    check_integrity(
        'Transactions', 'OldValue' => 'Queues', 'id',
        condition   => 's.Type = ? AND s.Field = ?',
        bind_values => [ 'Set', 'Queue' ],
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete', "Found a transaction describing a queue change,"
                ." but the Queue with id stored in the OldValue column doesn't exist anymore."
            );

            delete_record( 'Transactions', $id );
        },
    );
    # Reminders
    check_integrity(
        'Transactions', 'NewValue' => 'Tickets', 'id',
        join_condition => 't.Type = ?',
        condition      => 's.Type IN (?, ?, ?)',
        bind_values    => [ 'reminder', 'AddReminder', 'OpenReminder', 'ResolveReminder' ],
    );
};

# Attachments
push @CHECKS, 'Attachments -> other' => sub {
    check_integrity(
        Attachments  => 'TransactionId', Transactions => 'id',
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete', "Found an attachment without a transaction."
            );
            delete_record( 'Attachments', $id );
        },
    );
    check_integrity(
        Attachments => 'Parent', Attachments => 'id',
        action => sub {
            my $id = shift;
            return unless prompt(
                'Delete', "Found an sub-attachment without its parent attachment."
            );
            delete_record( 'Attachments', $id );
        },
    );
    check_integrity(
        Attachments => 'Parent',
        Attachments => 'id',
        join_condition => 's.TransactionId = t.TransactionId',
    );
};

push @CHECKS, 'CustomFields and friends' => sub {
    #XXX: ObjectCustomFields needs more love
    check_integrity(
        'CustomFieldValues', 'CustomField' => 'CustomFields', 'id',
    );
    check_integrity(
        'ObjectCustomFieldValues', 'CustomField' => 'CustomFields', 'id',
    );
    foreach my $model ( @models ) {
        check_integrity(
            'ObjectCustomFieldValues', 'ObjectId' => m2t($model), 'id',
            condition   => 's.ObjectType = ?',
            bind_values => [ "RT::$model" ],
        );
    }
};

push @CHECKS, Templates => sub {
    check_integrity(
        'Templates', 'Queue' => 'Queues', 'id',
    );
};

push @CHECKS, Scrips => sub {
    check_integrity(
        'Scrips', 'Queue' => 'Queues', 'id',
    );
    check_integrity(
        'Scrips', 'ScripCondition' => 'ScripConditions', 'id',
    );
    check_integrity(
        'Scrips', 'ScripAction' => 'ScripActions', 'id',
    );
    check_integrity(
        'Scrips', 'Template' => 'Templates', 'id',
    );
};

push @CHECKS, Attributes => sub {
    foreach my $model ( @models ) {
        check_integrity(
            'Attributes', 'ObjectId' => m2t($model), 'id',
            condition   => 's.ObjectType = ?',
            bind_values => [ "RT::$model" ],
        );
    }
};

# Fix situations when Creator or LastUpdatedBy references ACL equivalence
# group of a user instead of user
push @CHECKS, 'FIX: LastUpdatedBy and Creator' => sub {
    my %fix = ();
    foreach my $model ( @models ) {
        my $class = "RT::$model";
        my $object = $class->new( RT->SystemUser );
        foreach my $column ( qw(LastUpdatedBy Creator) ) {
            next unless $object->_Accessible( $column, 'auto' );

            my $table = m2t($model);
            my $query = <<END;
SELECT m.id, g.id, g.Instance
FROM
    Groups g JOIN $table m ON g.id = m.$column
WHERE
    g.Domain = ?
    AND g.Type = ?
END
            my $action = sub {
                my ($gid, $uid) = @_;
                return unless prompt(
                    'Update',
                    "Looks like there were a bug in old versions of RT back in 2006\n"
                    ."that has been fixed. If other checks are ok then it's ok to update\n"
                    ."these records to point them to users instead of groups"
                );
                $fix{ $table }{ $column }{ $gid } = $uid;
            };

            my $sth = execute_query( $query, 'ACLEquivalence', 'UserEquiv' );
            while ( my ($rid, $gid, $uid) = $sth->fetchrow_array ) {
                print STDERR "Record #$rid in $table refers to ACL equivalence group #$gid of user #$uid";
                print STDERR " when must reference user.\n";
                $action->( $gid, $uid );
                if ( keys( %fix ) > 1000 ) {
                    $sth->finish;
                    last;
                }
            }
        }
    }

    if ( keys %fix ) {
        foreach my $table ( keys %fix ) {
            foreach my $column ( keys %{ $fix{ $table } } ) {
                my $query = "UPDATE $table SET $column = ? WHERE $column = ?";
                while ( my ($gid, $uid) = each %{ $fix{ $table }{ $column } } ) {
                    update_records( $table, { $column => $gid }, { $column => $uid } );
                }
            }
        }
        $redo_check{'FIX: LastUpdatedBy and Creator'} = 1;
    }
};

push @CHECKS, 'LastUpdatedBy and Creator' => sub {
    foreach my $model ( @models ) {
        my $class = "RT::$model";
        my $object = $class->new( RT->SystemUser );
        my $table = $object->Table;
        foreach my $column ( qw(LastUpdatedBy Creator) ) {
            next unless $object->_Accessible( $column, 'auto' );
            check_integrity(
                $table, $column => 'Users', 'id',
                action => sub {
                    my ($id, %prop) = @_;
                    return unless my $replace_with = prompt_integer(
                        'Replace',
                        "Column $column should point to a user, but there is record #$id in table $table\n"
                        ."where it's not true. It's ok to replace these wrong references with id of any user.\n"
                        ."Note that id you enter is not checked. You can peak any user from your DB, but it's\n"
                        ."may be better to create a special user for this, for example 'user_that_has_been_deleted'\n"
                        ."or something like that.",
                        "$table.$column -> user #$prop{$column}"
                    );
                    update_records( $table, { id => $id, $column => $prop{$column} }, { $column => $replace_with } );
                },
            );
        }
    }
};
my %CHECKS = @CHECKS;

@do_check = do { my $i = 1; grep $i++%2, @CHECKS };

while ( my $check = shift @do_check ) {
    $CHECKS{ $check }->();

    foreach my $redo ( keys %redo_check ) {
        die "check $redo doesn't exist" unless $CHECKS{ $redo };
        delete $redo_check{ $redo };
        next if grep $_ eq $redo, @do_check; # don't do twice
        push @do_check, $redo;
    }
}

sub check_integrity {
    my ($stable, @scols) = (shift, shift);
    my ($ttable, @tcols) = (shift, shift);
    my %args = @_;

    @scols = @{ $scols[0] } if ref $scols[0];
    @tcols = @{ $tcols[0] } if ref $tcols[0];

    print "Checking integrity of $stable.{". join(', ', @scols) ."} => $ttable.{". join(', ', @tcols) ."}\n"
        if $opt{'verbose'};

    my $query = "SELECT s.id, ". join(', ', map "s.$_", @scols)
        ." FROM $stable s LEFT JOIN $ttable t"
        ." ON (". join(
            ' AND ', map columns_eq_cond('s', $stable, $scols[$_] => 't', $ttable, $tcols[$_]), (0..(@scols-1))
        ) .")"
        . ($args{'join_condition'}? " AND ( $args{'join_condition'} )": "")
        ." WHERE t.id IS NULL"
        ." AND ". join(' AND ', map "s.$_ IS NOT NULL", @scols);

    $query .= " AND ( $args{'condition'} )" if $args{'condition'};

    my @binds = @{ $args{'bind_values'} || [] };
    if ( $tcols[0] eq 'id' && @tcols == 1 ) {
        my $type = $TYPE{"$stable.$scols[0]"} || 'number';
        if ( $type eq 'number' ) {
            $query .= " AND s.$scols[0] != ?"
        }
        elsif ( $type eq 'text' ) {
            $query .= " AND s.$scols[0] NOT LIKE ?"
        }
        push @binds, 0;
    }

    my $sth = execute_query( $query, @binds );
    while ( my ($sid, @set) = $sth->fetchrow_array ) {
        print STDERR "Record #$sid in $stable references a nonexistent record in $ttable\n";
        for ( my $i = 0; $i < @scols; $i++ ) {
            print STDERR "\t$scols[$i] => '$set[$i]' => $tcols[$i]\n";
        }
        print STDERR "\t". describe( $stable, $sid ) ."\n";
        $args{'action'}->( $sid, map { $scols[$_] => $set[$_] } (0 .. (@scols-1)) ) if $args{'action'};
    }
}

sub describe {
    my ($table, $id) = @_;
    return '' unless my $cb = $describe_cb{ $table };

    my $row = load_record( $table, $id );
    unless ( $row->{id} ) {
        $table =~ s/s$//;
        return "$table doesn't exist";
    }
    return $cb->( $row );
}

sub columns_eq_cond {
    my ($la, $lt, $lc, $ra, $rt, $rc) = @_;
    my $ltype = $TYPE{"$lt.$lc"} || 'number';
    my $rtype = $TYPE{"$rt.$rc"} || 'number';
    return "$la.$lc = $ra.$rc" if $db_type ne 'Pg' || $ltype eq $rtype;

    if ( $rtype eq 'text' ) {
        return "$ra.$rc LIKE CAST($la.$lc AS text)";
    }
    elsif ( $ltype eq 'text' ) {
        return "$la.$lc LIKE CAST($ra.$rc AS text)";
    }
    else { die "don't know how to cast" }
}

sub check_uniqueness {
    my $on = shift;
    my %args = @_;

    my @columns = @{ $args{'columns'} };

    print "Checking uniqueness of ( ", join(', ', map "'$_'", @columns )," ) in table '$on'\n"
        if $opt{'verbose'};

    my ($scond, $tcond);
    if ( $scond = $tcond = $args{'condition'} ) {
        $scond =~ s/(\s|^)\./$1s./g;
        $tcond =~ s/(\s|^)\./$1t./g;
    }

    my $query = "SELECT s.id, t.id, ". join(', ', map "s.$_", @columns)
        ." FROM $on s LEFT JOIN $on t "
        ." ON s.id != t.id AND ". join(' AND ', map "s.$_ = t.$_", @columns)
        . ($tcond? " AND ( $tcond )": "")
        . ($args{'extra_tables'} ? join(", ", "", @{$args{'extra_tables'}}) : "")
        ." WHERE t.id IS NOT NULL "
        ." AND ". join(' AND ', map "s.$_ IS NOT NULL", @columns);
    $query .= " AND ( $scond )" if $scond;
    $query .= " AND ( $args{'extra_condition'} )" if $args{'extra_condition'};

    my $sth = execute_query(
        $query,
        $args{'bind_values'}? (@{ $args{'bind_values'} }, @{ $args{'bind_values'} }): (),
        $args{'extra_values'}? (@{ $args{'extra_values'} }): ()
    );
    while ( my ($sid, $tid, @set) = $sth->fetchrow_array ) {
        print STDERR "Record #$tid in $on has the same set of values as $sid\n";
        for ( my $i = 0; $i < @columns; $i++ ) {
            print STDERR "\t$columns[$i] => '$set[$i]'\n";
        }
        $args{'action'}->( $tid, map { $columns[$_] => $set[$_] } (0 .. (@columns-1)) ) if $args{'action'};
    }
}

sub load_record {
    my ($table, $id) = @_;
    my $sth = execute_query( "SELECT * FROM $table WHERE id = ?", $id );
    return $sth->fetchrow_hashref('NAME_lc');
}

sub delete_record {
    my ($table, $id) = (@_);
    print "Deleting record #$id in $table\n" if $opt{'verbose'};
    my $query = "DELETE FROM $table WHERE id = ?";
    $redo_check{ $_ } = 1 foreach @{ $redo_on{'Delete'}{ $table } || [] };
    return execute_query( $query, $id );
}

sub create_record {
    print "Creating a record in $_[0]\n" if $opt{'verbose'};
    $redo_check{ $_ } = 1 foreach @{ $redo_on{'Create'}{ $_[0] } || [] };
    return $RT::Handle->Insert( @_ );
}

sub update_records {
    my $table = shift;
    my $where = shift;
    my $what = shift;

    my (@where_cols, @where_binds);
    while ( my ($k, $v) = each %$where ) { push @where_cols, $k; push @where_binds, $v; }

    my (@what_cols, @what_binds);
    while ( my ($k, $v) = each %$what ) { push @what_cols, $k; push @what_binds, $v; }

    print "Updating record(s) in $table\n" if $opt{'verbose'};
    my $query = "UPDATE $table SET ". join(', ', map "$_ = ?", @what_cols)
        ." WHERE ". join(' AND ', map "$_ = ?", @where_cols);
    $redo_check{ $_ } = 1 foreach @{ $redo_on{'Update'}{ $table } || [] };
    return execute_query( $query, @what_binds, @where_binds );
}

sub execute_query {
    my ($query, @binds) = @_;

    print "Executing query: $query\n\n" if $opt{'verbose'};

    my $sth = $dbh->prepare( $query ) or die "couldn't prepare $query\n\tError: ". $dbh->errstr;
    $sth->execute( @binds ) or die "couldn't execute $query\n\tError: ". $sth->errstr;
    return $sth;
}

{ my %cached_answer;
sub prompt {
    my $action = shift;
    my $msg = shift;
    my $token = shift || join ':', caller;

    return 0 unless $opt{'resolve'};
    return 1 if $opt{'force'};

    return $cached_answer{ $token } if exists $cached_answer{ $token };

    print $msg, "\n";
    print "$action ALL records with the same defect? [N]: ";
    my $a = <STDIN>;
    return $cached_answer{ $token } = 1 if $a =~ /^(y|yes)$/i;
    return $cached_answer{ $token } = 0;
} }

{ my %cached_answer;
sub prompt_action {
    my $actions = shift;
    my $msg = shift;
    my $token = shift || join ':', caller;

    return '' unless $opt{'resolve'};
    return '' if $opt{'force'};
    return $cached_answer{ $token } if exists $cached_answer{ $token };

    print $msg, "\n";
    print join( ' or ', @$actions ) ." ALL records with the same defect? [do nothing]: ";
    my $a = <STDIN>;
    chomp $a;
    return $cached_answer{ $token } = '' unless $a;
    foreach ( grep rindex(lc $_, lc $a, 0) == 0, @$actions ) {
        return $cached_answer{ $token } = lc substr $a, 0, 1;
    }
    return $cached_answer{ $token } = '';
} }

{ my %cached_answer;
sub prompt_integer {
    my $action = shift;
    my $msg = shift;
    my $token = shift || join ':', caller;

    return 0 unless $opt{'resolve'};
    return 0 if $opt{'force'};

    return $cached_answer{ $token } if exists $cached_answer{ $token };

    print $msg, "\n";
    print "$action ALL records with the same defect? [0]: ";
    my $a = <STDIN>; chomp $a; $a = int($a);
    return $cached_answer{ $token } = $a;
} }

1;

__END__

=head1 NAME

rt-validator - check and correct validity of records in RT's database

=head1 SYNOPSIS

    rt-validator --check 
    rt-validator --check --verbose
    rt-validator --check --verbose --resolve
    rt-validator --check --verbose --resolve --force

=head1 DESCRIPTION

This script checks integrity of records in RT's DB. May delete some invalid
records or ressurect accidentally deleted.

=head1 OPTIONS

=over

=item check

    mandatory.
    
    it's equall to -c

=item verbose

    print additional info to STDOUT
    it's equall to -v

=item resolve

    enable resolver that can delete or create some records

=item force

    resolve without asking questions

=back