summaryrefslogtreecommitdiffstats
path: root/importxml.pl
blob: f34317d5aebd292d344b6776876e5bbc3460b843 (plain)
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
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
#!/usr/bin/perl -wT
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This Source Code Form is "Incompatible With Secondary Licenses", as
# defined by the Mozilla Public License, v. 2.0.

# This script reads in xml bug data from standard input and inserts
# a new bug into bugzilla. Everything before the beginning <?xml line
# is removed so you can pipe in email messages.

use strict;

#####################################################################
#
# This script is used to import bugs from another installation of bugzilla.
# It can be used in two ways.
# First using the move function of bugzilla
# on another system will send mail to an alias provided by
# the administrator of the target installation (you). Set up an alias
# similar to the one given below so this mail will be automatically
# run by this script and imported into your database.  Run 'newaliases'
# after adding this alias to your aliases file. Make sure your sendmail
# installation is configured to allow mail aliases to execute code.
#
# bugzilla-import: "|/usr/bin/perl /opt/bugzilla/importxml.pl"
#
# Second it can be run from the command line with any xml file from
# STDIN that conforms to the bugzilla DTD. In this case you can pass
# an argument to set whether you want to send the
# mail that will be sent to the exporter and maintainer normally.
#
# importxml.pl bugsfile.xml
#
#####################################################################

use File::Basename qw(dirname);
# MTAs may call this script from any directory, but it should always
# run from this one so that it can find its modules.
BEGIN {
    require File::Basename;
    my $dir = $0; $dir =~ /(.*)/; $dir = $1; # trick taint
    chdir(File::Basename::dirname($dir));
}

use lib qw(. lib);
# Data dumber is used for debugging, I got tired of copying it back in 
# and then removing it. 
#use Data::Dumper;


use Bugzilla;
use Bugzilla::Object;
use Bugzilla::Bug;
use Bugzilla::Product;
use Bugzilla::Version;
use Bugzilla::Component;
use Bugzilla::Milestone;
use Bugzilla::FlagType;
use Bugzilla::BugMail;
use Bugzilla::Mailer;
use Bugzilla::User;
use Bugzilla::Util;
use Bugzilla::Constants;
use Bugzilla::Keyword;
use Bugzilla::Field;
use Bugzilla::Status;

use MIME::Base64;
use MIME::Parser;
use Getopt::Long;
use Pod::Usage;
use XML::Twig;

my $debug = 0;
my $mail  = '';
my $attach_path = '';
my $help  = 0;
my $bug_page = 'show_bug.cgi?id=';
my $default_product_name = '';
my $default_component_name = '';

my $result = GetOptions(
    "verbose|debug+" => \$debug,
    "mail|sendmail!" => \$mail,
    "attach_path=s"  => \$attach_path,
    "help|?"         => \$help,
    "bug_page=s"     => \$bug_page,
    "product=s"      => \$default_product_name,
    "component=s"    => \$default_component_name,
);

pod2usage(0) if $help;

use constant OK_LEVEL    => 3;
use constant DEBUG_LEVEL => 2;
use constant ERR_LEVEL   => 1;

our @logs;
our @attachments;
our $bugtotal;
my $xml;
my $dbh = Bugzilla->dbh;
my $params = Bugzilla->params;
my ($timestamp) = $dbh->selectrow_array("SELECT NOW()");

###############################################################################
# Helper sub routines                                                         #
###############################################################################

sub MailMessage {
    return unless ($mail);
    my $subject    = shift;
    my $message    = shift;
    my @recipients = @_;
    my $from   = $params->{"mailfrom"};
    $from =~ s/@/\@/g;

    foreach my $to (@recipients){
        my $header = "To: $to\n";
        $header .= "From: Bugzilla <$from>\n";
        $header .= "Subject: $subject\n\n";
        my $sendmessage = $header . $message . "\n";
        MessageToMTA($sendmessage);
    }

}

sub Debug {
    return unless ($debug);
    my ( $message, $level ) = (@_);
    print STDERR "OK: $message \n" if ( $level == OK_LEVEL );
    print STDERR "ERR: $message \n" if ( $level == ERR_LEVEL );
    print STDERR "$message\n"
      if ( ( $debug == $level ) && ( $level == DEBUG_LEVEL ) );
}

sub Error {
    my ( $reason, $errtype, $exporter ) = @_;
    my $subject = "Bug import error: $reason";
    my $message = "Cannot import these bugs because $reason ";
    $message .= "\n\nPlease re-open the original bug.\n" if ($errtype);
    $message .= "For more info, contact " . $params->{"maintainer"} . ".\n";
    my @to = ( $params->{"maintainer"}, $exporter);
    Debug( $message, ERR_LEVEL );
    MailMessage( $subject, $message, @to );
    exit;
}

# This subroutine handles flags for process_bug. It is generic in that
# it can handle both attachment flags and bug flags.
sub flag_handler {
    my (
        $name,            $status,      $setter_login,
        $requestee_login, $exporterid,  $bugid,
        $componentid,     $productid,   $attachid
      )
      = @_;

    my $type         = ($attachid) ? "attachment" : "bug";
    my $err          = '';
    my $setter       = new Bugzilla::User({ name => $setter_login });
    my $requestee;
    my $requestee_id;

    unless ($setter) {
        $err = "Invalid setter $setter_login on $type flag $name\n";
        $err .= "   Dropping flag $name\n";
        return $err;
    }
    if ( !$setter->can_see_bug($bugid) ) {
        $err .= "Setter is not a member of bug group\n";
        $err .= "   Dropping flag $name\n";
        return $err;
    }
    my $setter_id = $setter->id;
    if ( defined($requestee_login) ) {
        $requestee = new Bugzilla::User({ name => $requestee_login });
        if ( $requestee ) {
            if ( !$requestee->can_see_bug($bugid) ) {
                $err .= "Requestee is not a member of bug group\n";
                $err .= "   Requesting from the wind\n";
            }    
            else{
                $requestee_id = $requestee->id;
            }
        }
        else {
            $err = "Invalid requestee $requestee_login on $type flag $name\n";
            $err .= "   Requesting from the wind.\n";
        }
        
    }
    my $flag_types;

    # If this is an attachment flag we need to do some dirty work to look
    # up the flagtype ID
    if ($attachid) {
        $flag_types = Bugzilla::FlagType::match(
            {
                'target_type'  => 'attachment',
                'product_id'   => $productid,
                'component_id' => $componentid
            } );
    }
    else {
        my $bug = new Bugzilla::Bug($bugid);
        $flag_types = $bug->flag_types;
    }
    unless ($flag_types){
        $err  = "No flag types defined for this bug\n";
        $err .= "   Dropping flag $name\n";
        return $err;
    }

    # We need to see if the imported flag is in the list of known flags
    # It is possible for two flags on the same bug have the same name
    # If this is the case, we will only match the first one.
    my $ftype;
    foreach my $f ( @{$flag_types} ) {
        if ( $f->name eq $name) {
            $ftype = $f;
            last;
        }
    }

    if ($ftype) {    # We found the flag in the list
        my $grant_group = $ftype->grant_group;
        if (( $status eq '+' || $status eq '-' ) 
            && $grant_group && !$setter->in_group_id($grant_group->id)) {
            $err = "Setter $setter_login on $type flag $name ";
            $err .= "is not in the Grant Group\n";
            $err .= "   Dropping flag $name\n";
            return $err;
        }
        my $request_group = $ftype->request_group;
        if ($request_group
            && $status eq '?' && !$setter->in_group_id($request_group->id)) {
            $err = "Setter $setter_login on $type flag $name ";
            $err .= "is not in the Request Group\n";
            $err .= "   Dropping flag $name\n";
            return $err;
        }

        # Take the first flag_type that matches
        unless ($ftype->is_active) {
            $err = "Flag $name is not active in this database\n";
            $err .= "   Dropping flag $name\n";
            return $err;
        }

        $dbh->do("INSERT INTO flags 
                 (type_id, status, bug_id, attach_id, creation_date, 
                  setter_id, requestee_id)
                  VALUES (?, ?, ?, ?, ?, ?, ?)", undef,
            ($ftype->id, $status, $bugid, $attachid, $timestamp,
            $setter_id, $requestee_id));
    }
    else {
        $err = "Dropping unknown $type flag: $name\n";
        return $err;
    }
    return $err;
}

# Converts and returns the input data as an array.
sub _to_array {
    my $value = shift;

    $value = [$value] if !ref($value);
    return @$value;
}

###############################################################################
# XML Handlers                                                                #
###############################################################################

# This subroutine gets called only once - as soon as the <bugzilla> opening
# tag is parsed. It simply checks to see that the all important exporter
# maintainer and URL base are set.
#
#    exporter:   email address of the person moving the bugs
#    maintainer: the maintainer of the bugzilla installation
#                as set in the parameters file
#    urlbase:    The urlbase parameter of the installation
#                bugs are being moved from
#
sub init() {
    my ( $twig, $bugzilla ) = @_;
    my $root       = $twig->root;
    my $maintainer = $root->{'att'}->{'maintainer'};
    my $exporter   = $root->{'att'}->{'exporter'};
    my $urlbase    = $root->{'att'}->{'urlbase'};
    my $xmlversion = $root->{'att'}->{'version'};

    if ($xmlversion ne BUGZILLA_VERSION) {
            my $log = "Possible version conflict!\n";
            $log .= "   XML was exported from Bugzilla version $xmlversion\n";
            $log .= "   But this installation uses ";
            $log .= BUGZILLA_VERSION . "\n";
            Debug($log, OK_LEVEL);
            push(@logs, $log);
    }
    Error( "no maintainer", "REOPEN", $exporter ) unless ($maintainer);
    Error( "no exporter",   "REOPEN", $exporter ) unless ($exporter);
    Error( "invalid exporter: $exporter", "REOPEN", $exporter ) if ( !login_to_id($exporter) );
    Error( "no urlbase set", "REOPEN", $exporter ) unless ($urlbase);
}
    

# Parse attachments.
#
# This subroutine is called once for each attachment in the xml file.
# It is called as soon as the closing </attachment> tag is parsed.
# Since attachments have the potential to be very large, and
# since each attachment will be inside <bug>..</bug> tags we shove
# the attachment onto an array which will be processed by process_bug
# and then disposed of. The attachment array will then contain only
# one bugs' attachments at a time.
# The cycle will then repeat for the next <bug>
#
# The attach_id is ignored since mysql generates a new one for us.
# The submitter_id gets filled in with $exporterid.

sub process_attachment() {
    my ( $twig, $attach ) = @_;
    Debug( "Parsing attachments", DEBUG_LEVEL );
    my %attachment;

    $attachment{'date'} =
        format_time( $attach->field('date'), "%Y-%m-%d %R" ) || $timestamp;
    $attachment{'desc'}       = $attach->field('desc');
    $attachment{'ctype'}      = $attach->field('type') || "unknown/unknown";
    $attachment{'attachid'}   = $attach->field('attachid');
    $attachment{'ispatch'}    = $attach->{'att'}->{'ispatch'} || 0;
    $attachment{'isobsolete'} = $attach->{'att'}->{'isobsolete'} || 0;
    $attachment{'isprivate'}  = $attach->{'att'}->{'isprivate'} || 0;
    $attachment{'filename'}   = $attach->field('filename') || "file";
    $attachment{'attacher'}   = $attach->field('attacher');
    # Attachment data is not exported in versions 2.20 and older.
    if (defined $attach->first_child('data') &&
            defined $attach->first_child('data')->{'att'}->{'encoding'}) {
        my $encoding = $attach->first_child('data')->{'att'}->{'encoding'};
        if ($encoding =~ /base64/) {
            # decode the base64
            my $data   = $attach->field('data');
            my $output = decode_base64($data);
            $attachment{'data'} = $output;
        }
        elsif ($encoding =~ /filename/) {
            # read the attachment file
            Error("attach_path is required", undef) unless ($attach_path);
            
            my $filename = $attach->field('data');
            # Remove any leading path data from the filename
            $filename =~ s/(.*\/|.*\\)//gs;
            
            my $attach_filename = $attach_path . "/" . $filename;
            open(ATTACH_FH, "<", $attach_filename) or
                Error("cannot open $attach_filename", undef);
            $attachment{'data'} = do { local $/; <ATTACH_FH> };
            close ATTACH_FH;
        }
    }
    else {
        $attachment{'data'} = $attach->field('data');
    }

    # attachment flags
    my @aflags;
    foreach my $aflag ( $attach->children('flag') ) {
        my %aflag;
        $aflag{'name'}      = $aflag->{'att'}->{'name'};
        $aflag{'status'}    = $aflag->{'att'}->{'status'};
        $aflag{'setter'}    = $aflag->{'att'}->{'setter'};
        $aflag{'requestee'} = $aflag->{'att'}->{'requestee'};
        push @aflags, \%aflag;
    }
    $attachment{'flags'} = \@aflags if (@aflags);

    # free up the memory for use by the rest of the script
    $attach->delete;
    if ($attachment{'attachid'}) {
        push @attachments, \%attachment;
    }
    else {
        push @attachments, "err";
    }
}

# This subroutine will be called once for each <bug> in the xml file.
# It is called as soon as the closing </bug> tag is parsed.
# If this bug had any <attachment> tags, they will have been processed
# before we get to this point and their data will be in the @attachments
# array.
# As each bug is processed, it is inserted into the database and then
# purged from memory to free it up for later bugs.

sub process_bug {
    my ( $twig, $bug ) = @_;
    my $root             = $twig->root;
    my $maintainer       = $root->{'att'}->{'maintainer'};
    my $exporter_login   = $root->{'att'}->{'exporter'};
    my $exporter         = new Bugzilla::User({ name => $exporter_login });
    my $urlbase          = $root->{'att'}->{'urlbase'};
    my $url              = $urlbase . $bug_page;
    trick_taint($url);

    # We will store output information in this variable.
    my $log = "";
    if ( defined $bug->{'att'}->{'error'} ) {
        $log .= "\nError in bug " . $bug->field('bug_id') . "\@$urlbase: ";
        $log .= $bug->{'att'}->{'error'} . "\n";
        if ( $bug->{'att'}->{'error'} =~ /NotFound/ ) {
            $log .= "$exporter_login tried to move bug " . $bug->field('bug_id');
            $log .= " here, but $urlbase reports that this bug";
            $log .= " does not exist.\n";
        }
        elsif ( $bug->{'att'}->{'error'} =~ /NotPermitted/ ) {
            $log .= "$exporter_login tried to move bug " . $bug->field('bug_id');
            $log .= " here, but $urlbase reports that $exporter_login does ";
            $log .= " not have access to that bug.\n";
        }
        return;
    }
    $bugtotal++;

    # This list contains all other bug fields that we want to process.
    # If it is not in this list it will not be included.
    my %all_fields;
    foreach my $field ( 
        qw(long_desc attachment flag group), Bugzilla::Bug::fields() )
    {
        $all_fields{$field} = 1;
    }
    
    my %bug_fields;
    my $err = "";

   # Loop through all the xml tags inside a <bug> and compare them to the
   # lists of fields. If they match throw them into the hash. Otherwise
   # append it to the log, which will go into the comments when we are done.
    foreach my $bugchild ( $bug->children() ) {
        Debug( "Parsing field: " . $bugchild->name, DEBUG_LEVEL );

        # Skip the token if one is included. We don't want it included in
        # the comments, and it is not used by the importer.
        next if $bugchild->name eq 'token';

        if ( defined $all_fields{ $bugchild->name } ) {
            my @values = $bug->children_text($bugchild->name);
            if (scalar @values > 1) {
                $bug_fields{$bugchild->name} = \@values;
            }
            else {
                $bug_fields{$bugchild->name} = $values[0];
            }
        }
        else {
            $err .= "Unknown bug field \"" . $bugchild->name . "\"";
            $err .= " encountered while moving bug\n";
            $err .= "   <" . $bugchild->name . ">";
            if ( $bugchild->children_count > 1 ) {
                $err .= "\n";
                foreach my $subchild ( $bugchild->children() ) {
                    $err .= "     <" . $subchild->name . ">";
                    $err .= $subchild->field;
                    $err .= "</" . $subchild->name . ">\n";
                }
            }
            else {
                $err .= $bugchild->field;
            }
            $err .= "</" . $bugchild->name . ">\n";
        }
    }

    # Parse long descriptions
    my @long_descs;
    foreach my $comment ( $bug->children('long_desc') ) {
        Debug( "Parsing Long Description", DEBUG_LEVEL );
        my %long_desc = ( who       => $comment->field('who'),
                          bug_when  => $comment->field('bug_when'),
                          isprivate => $comment->{'att'}->{'isprivate'} || 0 );

        # If the exporter is not in the insidergroup, keep the comment public.
        $long_desc{isprivate} = 0 unless $exporter->is_insider;

        my $data = $comment->field('thetext');
        if ( defined $comment->first_child('thetext')->{'att'}->{'encoding'}
            && $comment->first_child('thetext')->{'att'}->{'encoding'} =~
            /base64/ )
        {
            $data = decode_base64($data);
        }

        # For backwards-compatibility with Bugzillas before 3.6:
        #
        # If we leave the attachment ID in the comment it will be made a link
        # to the wrong attachment. Since the new attachment ID is unknown yet
        # let's strip it out for now. We will make a comment with the right ID
        # later
        $data =~ s/Created an attachment \(id=\d+\)/Created an attachment/g;

        # Same goes for bug #'s Since we don't know if the referenced bug
        # is also being moved, lets make sure they know it means a different
        # bugzilla.
        $data =~ s/([Bb]ugs?\s*\#?\s*(\d+))/$url$2/g;

        # Keep the original commenter if possible, else we will fall back
        # to the exporter account.
        $long_desc{whoid} = login_to_id($long_desc{who});

        if (!$long_desc{whoid}) {
            $data = "The original author of this comment is $long_desc{who}.\n\n" . $data;
        }

        $long_desc{'thetext'} = $data;
        push @long_descs, \%long_desc;
    }

    my @sorted_descs = sort { $a->{'bug_when'} cmp $b->{'bug_when'} } @long_descs;

    my $comments = "\n\n--- Bug imported by $exporter_login ";
    $comments .= format_time(scalar localtime(time()), '%Y-%m-%d %R %Z') . " ";
    $comments .= " ---\n\n";
    $comments .= "This bug was previously known as _bug_ $bug_fields{'bug_id'} at ";
    $comments .= $url . $bug_fields{'bug_id'} . "\n";
    if ( defined $bug_fields{'dependson'} ) {
        $comments .= "This bug depended on bug(s) " .
                     join(' ', _to_array($bug_fields{'dependson'})) . ".\n";
    }
    if ( defined $bug_fields{'blocked'} ) {
        $comments .= "This bug blocked bug(s) " .
                     join(' ', _to_array($bug_fields{'blocked'})) . ".\n";
    }

    # Now we process each of the fields in turn and make sure they contain
    # valid data. We will create two parallel arrays, one for the query
    # and one for the values. For every field we need to push an entry onto
    # each array.
    my @query  = ();
    my @values = ();

    # Each of these fields we will check for newlines and shove onto the array
    foreach my $field (qw(status_whiteboard bug_file_loc short_desc)) {
        if ($bug_fields{$field}) {
            $bug_fields{$field} = clean_text( $bug_fields{$field} );
            push( @query,  $field );
            push( @values, $bug_fields{$field} );
        }
    }

    # Alias
    if ( $bug_fields{'alias'} ) {
        my ($alias) = $dbh->selectrow_array("SELECT COUNT(*) FROM bugs 
                                                WHERE alias = ?", undef,
                                                $bug_fields{'alias'} );
        if ($alias) {
            $err .= "Dropping conflicting bug alias ";
            $err .= $bug_fields{'alias'} . "\n";
        }
        else {
            $alias = $bug_fields{'alias'};
            push @query,  'alias';
            push @values, $alias;
        }
    }

    # Timestamps
    push( @query, "creation_ts" );
    push( @values,
        format_time( $bug_fields{'creation_ts'}, "%Y-%m-%d %T" )
          || $timestamp );

    push( @query, "delta_ts" );
    push( @values,
        format_time( $bug_fields{'delta_ts'}, "%Y-%m-%d %T" )
          || $timestamp );

    # Bug Access
    push( @query,  "cclist_accessible" );
    push( @values, $bug_fields{'cclist_accessible'} ? 1 : 0 );

    push( @query,  "reporter_accessible" );
    push( @values, $bug_fields{'reporter_accessible'} ? 1 : 0 );

    my $product = new Bugzilla::Product(
        { name => $bug_fields{'product'} || '' });
    if (!$product) {
        $err .= "Unknown Product " . $bug_fields{'product'} . "\n";
        $err .= "   Using default product set at the command line.\n";
        $product = new Bugzilla::Product({ name => $default_product_name })
            or Error("an invalid default product was defined for the target"
                     . " DB. " . $params->{"maintainer"} . " needs to specify "
                     . "--product when calling importxml.pl", "REOPEN", 
                     $exporter);
    }
    my $component = new Bugzilla::Component({
        product => $product, name => $bug_fields{'component'} || '' });
    if (!$component) {
        $err .= "Unknown Component " . $bug_fields{'component'} . "\n";
        $err .= "   Using default product and component set ";
        $err .= "at the command line.\n";

        $product = new Bugzilla::Product({ name => $default_product_name });
        $component = new Bugzilla::Component({
           name => $default_component_name, product => $product });
        if (!$component) {
            Error("an invalid default component was defined for the target" 
                  . " DB. ".  $params->{"maintainer"} . " needs to specify " 
                  . "--component when calling importxml.pl", "REOPEN", 
                  $exporter);
        }
    }

    my $prod_id = $product->id;
    my $comp_id = $component->id;

    push( @query,  "product_id" );
    push( @values, $prod_id );
    push( @query,  "component_id" );
    push( @values, $comp_id );

    # Since there is no default version for a product, we check that the one
    # coming over is valid. If not we will use the first one in @versions
    # and warn them.
    my $version = new Bugzilla::Version(
          { product => $product, name => $bug_fields{'version'} });

    push( @query, "version" );
    if ($version) {
        push( @values, $version->name );
    }
    else {
        my @versions = @{ $product->versions };
        my $v        = $versions[0];
        push( @values, $v->name );
        $err .= "Unknown version \"";
        $err .= ( defined $bug_fields{'version'} )
            ? $bug_fields{'version'}
            : "unknown";
        $err .= " in product " . $product->name . ". \n";
        $err .= "   Setting version to \"" . $v->name . "\".\n";
    }

    # Milestone
    if ( $params->{"usetargetmilestone"} ) {
        my $milestone;
        if (defined $bug_fields{'target_milestone'}
            && $bug_fields{'target_milestone'} ne "") {

            $milestone = new Bugzilla::Milestone(
                { product => $product, name => $bug_fields{'target_milestone'} });
        }
        if ($milestone) {
            push( @values, $milestone->name );
        }
        else {
            push( @values, $product->default_milestone );
            $err .= "Unknown milestone \"";
            $err .= ( defined $bug_fields{'target_milestone'} )
                ? $bug_fields{'target_milestone'}
                : "unknown";
            $err .= " in product " . $product->name . ". \n";
            $err .= "   Setting to default milestone for this product, ";
            $err .= "\"" . $product->default_milestone . "\".\n";
        }
        push( @query, "target_milestone" );
    }

    # For priority, severity, opsys and platform we check that the one being
    # imported is valid. If it is not we use the defaults set in the parameters.
    if (defined( $bug_fields{'bug_severity'} )
        && check_field('bug_severity', scalar $bug_fields{'bug_severity'},
                       undef, ERR_LEVEL) )
    {
        push( @values, $bug_fields{'bug_severity'} );
    }
    else {
        push( @values, $params->{'defaultseverity'} );
        $err .= "Unknown severity ";
        $err .= ( defined $bug_fields{'bug_severity'} )
          ? $bug_fields{'bug_severity'}
          : "unknown";
        $err .= ". Setting to default severity \"";
        $err .= $params->{'defaultseverity'} . "\".\n";
    }
    push( @query, "bug_severity" );

    if (defined( $bug_fields{'priority'} )
        && check_field('priority', scalar $bug_fields{'priority'},
                       undef, ERR_LEVEL ) )
    {
        push( @values, $bug_fields{'priority'} );
    }
    else {
        push( @values, $params->{'defaultpriority'} );
        $err .= "Unknown priority ";
        $err .= ( defined $bug_fields{'priority'} )
          ? $bug_fields{'priority'}
          : "unknown";
        $err .= ". Setting to default priority \"";
        $err .= $params->{'defaultpriority'} . "\".\n";
    }
    push( @query, "priority" );

    if (defined( $bug_fields{'rep_platform'} )
        && check_field('rep_platform', scalar $bug_fields{'rep_platform'},
                       undef, ERR_LEVEL ) )
    {
        push( @values, $bug_fields{'rep_platform'} );
    }
    else {
        push( @values, $params->{'defaultplatform'} );
        $err .= "Unknown platform ";
        $err .= ( defined $bug_fields{'rep_platform'} )
          ? $bug_fields{'rep_platform'}
          : "unknown";
        $err .=". Setting to default platform \"";
        $err .= $params->{'defaultplatform'} . "\".\n";
    }
    push( @query, "rep_platform" );

    if (defined( $bug_fields{'op_sys'} )
        && check_field('op_sys',  scalar $bug_fields{'op_sys'},
                       undef, ERR_LEVEL ) )
    {
        push( @values, $bug_fields{'op_sys'} );
    }
    else {
        push( @values, $params->{'defaultopsys'} );
        $err .= "Unknown operating system ";
        $err .= ( defined $bug_fields{'op_sys'} )
          ? $bug_fields{'op_sys'}
          : "unknown";
        $err .= ". Setting to default OS \"" . $params->{'defaultopsys'} . "\".\n";
    }
    push( @query, "op_sys" );

    # Process time fields
    if ( $params->{"timetrackinggroup"} ) {
        my $date = validate_date( $bug_fields{'deadline'} ) ? $bug_fields{'deadline'} : undef;
        push( @values, $date );
        push( @query,  "deadline" );
        if ( defined $bug_fields{'estimated_time'} ) {
            eval {
                Bugzilla::Object::_validate_time($bug_fields{'estimated_time'}, "e");
            };
            if (!$@){
                push( @values, $bug_fields{'estimated_time'} );
                push( @query,  "estimated_time" );
            }
        }
        if ( defined $bug_fields{'remaining_time'} ) {
            eval {
                Bugzilla::Object::_validate_time($bug_fields{'remaining_time'}, "r");
            };
            if (!$@){
                push( @values, $bug_fields{'remaining_time'} );
                push( @query,  "remaining_time" );
            }
        }
        if ( defined $bug_fields{'actual_time'} ) {
            eval {
                Bugzilla::Object::_validate_time($bug_fields{'actual_time'}, "a");
            };
            if ($@){
                $bug_fields{'actual_time'} = 0.0;
                $err .= "Invalid Actual Time. Setting to 0.0\n";
            }
        }
        else {
            $bug_fields{'actual_time'} = 0.0;
            $err .= "Actual time not defined. Setting to 0.0\n";
        }
    }

    # Reporter Assignee QA Contact
    my $exporterid = $exporter->id;
    my $reporterid = login_to_id( $bug_fields{'reporter'} )
      if $bug_fields{'reporter'};
    push( @query, "reporter" );
    if ( ( $bug_fields{'reporter'} ) && ($reporterid) ) {
        push( @values, $reporterid );
    }
    else {
        push( @values, $exporterid );
        $err .= "The original reporter of this bug does not have\n";
        $err .= "   an account here. Reassigning to the person who moved\n";
        $err .= "   it here: $exporter_login.\n";
        if ( $bug_fields{'reporter'} ) {
            $err .= "   Previous reporter was $bug_fields{'reporter'}.\n";
        }
        else {
            $err .= "   Previous reporter is unknown.\n";
        }
    }

    my $changed_owner = 0;
    my $owner;
    push( @query, "assigned_to" );
    if ( ( $bug_fields{'assigned_to'} )
        && ( $owner = login_to_id( $bug_fields{'assigned_to'} )) ) {
        push( @values, $owner );
    }
    else {
        push( @values, $component->default_assignee->id );
        $changed_owner = 1;
        $err .= "The original assignee of this bug does not have\n";
        $err .= "   an account here. Reassigning to the default assignee\n";
        $err .= "   for the component, ". $component->default_assignee->login .".\n";
        if ( $bug_fields{'assigned_to'} ) {
            $err .= "   Previous assignee was $bug_fields{'assigned_to'}.\n";
        }
        else {
            $err .= "   Previous assignee is unknown.\n";
        }
    }

    if ( $params->{"useqacontact"} ) {
        my $qa_contact;
        push( @query, "qa_contact" );
        if ( ( defined $bug_fields{'qa_contact'})
            && ( $qa_contact = login_to_id( $bug_fields{'qa_contact'} ) ) ) {
            push( @values, $qa_contact );
        }
        else {
            push( @values, $component->default_qa_contact->id || undef );
            if ($component->default_qa_contact->id){
                $err .= "Setting qa contact to the default for this product.\n";
                $err .= "   This bug either had no qa contact or an invalid one.\n";
            }
        }
    }

    # Status & Resolution
    my $valid_res = check_field('resolution',  
                                  scalar $bug_fields{'resolution'}, 
                                  undef, ERR_LEVEL );
    my $valid_status = check_field('bug_status',  
                                  scalar $bug_fields{'bug_status'}, 
                                  undef, ERR_LEVEL );
    my $status = $bug_fields{'bug_status'} || undef;
    my $resolution = $bug_fields{'resolution'} || undef;
    
    # Check everconfirmed 
    my $everconfirmed;
    if ($product->allows_unconfirmed) {
        $everconfirmed = $bug_fields{'everconfirmed'} || 0;
    }
    else {
        $everconfirmed = 1;
    }
    push (@query,  "everconfirmed");
    push (@values, $everconfirmed);

    # Sanity check will complain about having bugs marked duplicate but no
    # entry in the dup table. Since we can't tell the bug ID of bugs
    # that might not yet be in the database we have no way of populating
    # this table. Change the resolution instead.
    if ( $valid_res  && ( $bug_fields{'resolution'} eq "DUPLICATE" ) ) {
        $resolution = "INVALID";
        $err .= "This bug was marked DUPLICATE in the database ";
        $err .= "it was moved from.\n    Changing resolution to \"INVALID\"\n";
    } 

    # If there is at least 1 initial bug status different from UNCO, use it,
    # else use the open bug status with the lowest sortkey (different from UNCO).
    my @bug_statuses = @{Bugzilla::Status->can_change_to()};
    @bug_statuses = grep { $_->name ne 'UNCONFIRMED' } @bug_statuses;

    my $initial_status;
    if (scalar(@bug_statuses)) {
        $initial_status = $bug_statuses[0]->name;
    }
    else {
        @bug_statuses = Bugzilla::Status->get_all();
        # Exclude UNCO and inactive bug statuses.
        @bug_statuses = grep { $_->is_active && $_->name ne 'UNCONFIRMED'} @bug_statuses;
        my @open_statuses = grep { $_->is_open } @bug_statuses;
        if (scalar(@open_statuses)) {
            $initial_status = $open_statuses[0]->name;
        }
        else {
            # There is NO other open bug statuses outside UNCO???
            Error("no open bug statuses available.");
        }
    }

    if ($status) {
        if($valid_status){
            if (is_open_state($status)) {
                if ($resolution) {
                    $err .= "Resolution set on an open status.\n";
                    $err .= "   Dropping resolution $resolution\n";
                    $resolution = undef;
                }
                if($changed_owner){
                    if($everconfirmed){  
                        $status = $initial_status;
                    }
                    else{
                        $status = "UNCONFIRMED";
                    }
                    if ($status ne $bug_fields{'bug_status'}){
                        $err .= "Bug reassigned, setting status to \"$status\".\n";
                        $err .= "   Previous status was \"";
                        $err .=  $bug_fields{'bug_status'} . "\".\n";
                    }
                }
                if($everconfirmed){
                    if($status eq "UNCONFIRMED"){
                        $err .= "Bug Status was UNCONFIRMED but everconfirmed was true\n";
                        $err .= "   Setting status to $initial_status\n";
                        $status = $initial_status;
                    }
                }
                else{ # $everconfirmed is false
                    if($status ne "UNCONFIRMED"){
                        $err .= "Bug Status was $status but everconfirmed was false\n";
                        $err .= "   Setting status to UNCONFIRMED\n";
                        $status = "UNCONFIRMED";
                    }
                }
            }
            else {
               if (!$resolution) {
                   $err .= "Missing Resolution. Setting status to ";
                   if($everconfirmed){
                       $status = $initial_status;
                       $err .= "$initial_status\n";
                   }
                   else{
                       $status = "UNCONFIRMED";
                       $err .= "UNCONFIRMED\n";
                   }
               }
               elsif (!$valid_res) {
                   $err .= "Unknown resolution \"$resolution\".\n";
                   $err .= "   Setting resolution to INVALID\n";
                   $resolution = "INVALID";
               }
            }   
        }
        else{ # $valid_status is false
            if($everconfirmed){  
                $status = $initial_status;
            }
            else{
                $status = "UNCONFIRMED";
            }        
            $err .= "Bug has invalid status, setting status to \"$status\".\n";
            $err .= "   Previous status was \"";
            $err .=  $bug_fields{'bug_status'} . "\".\n";
            $resolution = undef;
        }
    }
    else {
        if($everconfirmed){  
            $status = $initial_status;
        }
        else{
            $status = "UNCONFIRMED";
        }        
        $err .= "Bug has no status, setting status to \"$status\".\n";
        $err .= "   Previous status was unknown\n";
        $resolution = undef;
    }

    if ($resolution) {
        push( @query,  "resolution" );
        push( @values, $resolution );
    }
    
    # Bug status
    push( @query,  "bug_status" );
    push( @values, $status );

    # Custom fields - Multi-select fields have their own table.
    my %multi_select_fields;
    foreach my $field (Bugzilla->active_custom_fields) {
        my $custom_field = $field->name;
        my $value = $bug_fields{$custom_field};
        next unless defined $value;
        if ($field->type == FIELD_TYPE_FREETEXT) {
            push(@query, $custom_field);
            push(@values, clean_text($value));
        } elsif ($field->type == FIELD_TYPE_TEXTAREA) {
            push(@query, $custom_field);
            push(@values, $value);
        } elsif ($field->type == FIELD_TYPE_SINGLE_SELECT) {
            my $is_well_formed = check_field($custom_field, $value, undef, ERR_LEVEL);
            if ($is_well_formed) {
                push(@query, $custom_field);
                push(@values, $value);
            } else {
                $err .= "Skipping illegal value \"$value\" in $custom_field.\n" ;
            }
        } elsif ($field->type == FIELD_TYPE_MULTI_SELECT) {
            my @legal_values;
            foreach my $item (_to_array($value)) {
                my $is_well_formed = check_field($custom_field, $item, undef, ERR_LEVEL);
                if ($is_well_formed) {
                    push(@legal_values, $item);
                } else {
                    $err .= "Skipping illegal value \"$item\" in $custom_field.\n" ;
                }
            }
            if (scalar @legal_values) {
                $multi_select_fields{$custom_field} = \@legal_values;
            }
        } elsif ($field->type == FIELD_TYPE_DATETIME) {
            eval { $value = Bugzilla::Bug->_check_datetime_field($value); };
            if ($@) {
                $err .= "Skipping illegal value \"$value\" in $custom_field.\n" ;
            }
            else {
                push(@query, $custom_field);
                push(@values, $value);
            }
        } else {
            $err .= "Type of custom field $custom_field is an unhandled FIELD_TYPE: " .
                    $field->type . "\n";
        }
    }

    # For the sake of sanitycheck.cgi we do this.
    # Update lastdiffed if you do not want to have mail sent
    unless ($mail) {
        push @query,  "lastdiffed";
        push @values, $timestamp;
    }

    # INSERT the bug
    my $query = "INSERT INTO bugs (" . join( ", ", @query ) . ") VALUES (";
       $query .= '?,' foreach (@values);
    chop($query);    # Remove the last comma.
       $query .= ")";

    $dbh->do( $query, undef, @values );
    my $id = $dbh->bz_last_key( 'bugs', 'bug_id' );

    # We are almost certain to get some uninitialized warnings
    # Since this is just for debugging the query, let's shut them up
    eval {
        no warnings 'uninitialized';
        Debug(
            "Bug Query: INSERT INTO bugs (\n"
              . join( ",\n", @query )
              . "\n) VALUES (\n"
              . join( ",\n", @values ),
            DEBUG_LEVEL
        );
    };

    # Handle CC's
    if ( defined $bug_fields{'cc'} ) {
        my %ccseen;
        my $sth_cc = $dbh->prepare("INSERT INTO cc (bug_id, who) VALUES (?,?)");
        foreach my $person (_to_array($bug_fields{'cc'})) {
            next unless $person;
            my $uid;
            if ($uid = login_to_id($person)) {
                if ( !$ccseen{$uid} ) {
                    $sth_cc->execute( $id, $uid );
                    $ccseen{$uid} = 1;
                }
            }
            else {
                $err .= "CC member $person does not have an account here\n";
            }
        }
    }

    # Handle keywords
    if ( defined( $bug_fields{'keywords'} ) ) {
        my %keywordseen;
        my $key_sth = $dbh->prepare(
            "INSERT INTO keywords 
                      (bug_id, keywordid) VALUES (?,?)"
        );
        foreach my $keyword ( split( /[\s,]+/, $bug_fields{'keywords'} )) {
            next unless $keyword;
            my $keyword_obj = new Bugzilla::Keyword({name => $keyword});
            if (!$keyword_obj) {
                $err .= "Skipping unknown keyword: $keyword.\n";
                next;
            }
            if (!$keywordseen{$keyword_obj->id}) {
                $key_sth->execute($id, $keyword_obj->id);
                $keywordseen{$keyword_obj->id} = 1;
            }
        }
    }

    # Insert values of custom multi-select fields. They have already
    # been validated.
    foreach my $custom_field (keys %multi_select_fields) {
        my $sth = $dbh->prepare("INSERT INTO bug_$custom_field
                                 (bug_id, value) VALUES (?, ?)");
        foreach my $value (@{$multi_select_fields{$custom_field}}) {
            $sth->execute($id, $value);
        }
    }

    # Parse bug flags
    foreach my $bflag ( $bug->children('flag')) {
        next unless ( defined($bflag) );
        $err .= flag_handler(
            $bflag->{'att'}->{'name'},   $bflag->{'att'}->{'status'},
            $bflag->{'att'}->{'setter'}, $bflag->{'att'}->{'requestee'},
            $exporterid,                 $id,
            $comp_id,                    $prod_id,
            undef
        );
    }

    # Insert Attachments for the bug
    foreach my $att (@attachments) {
        if ($att eq "err"){
            $err .= "No attachment ID specified, dropping attachment\n";
            next;
        }
        if (!$exporter->is_insider && $att->{'isprivate'}) {
            $err .= "Exporter not in insidergroup and attachment marked private.\n";
            $err .= "   Marking attachment public\n";
            $att->{'isprivate'} = 0;
        }

        my $attacher_id = $att->{'attacher'} ? login_to_id($att->{'attacher'}) : undef;

        $dbh->do("INSERT INTO attachments 
                 (bug_id, creation_ts, modification_time, filename, description,
                 mimetype, ispatch, isprivate, isobsolete, submitter_id) 
                 VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
            undef, $id, $att->{'date'}, $att->{'date'}, $att->{'filename'},
            $att->{'desc'}, $att->{'ctype'}, $att->{'ispatch'},
            $att->{'isprivate'}, $att->{'isobsolete'}, $attacher_id || $exporterid);
        my $att_id   = $dbh->bz_last_key( 'attachments', 'attach_id' );
        my $att_data = $att->{'data'};
        my $sth = $dbh->prepare("INSERT INTO attach_data (id, thedata) 
                                 VALUES ($att_id, ?)" );
        trick_taint($att_data);
        $sth->bind_param( 1, $att_data, $dbh->BLOB_TYPE );
        $sth->execute();

        $comments .= "Imported an attachment (id=$att_id)\n";
        if (!$attacher_id) {
            if ($att->{'attacher'}) {
                $err .= "The original submitter of attachment $att_id was\n   ";
                $err .= $att->{'attacher'} . ", but he doesn't have an account here.\n";
            }
            else {
                $err .= "The original submitter of attachment $att_id is unknown.\n";
            }
            $err .= "   Reassigning to the person who moved it here: $exporter_login.\n";
        }

        # Process attachment flags
        foreach my $aflag (@{ $att->{'flags'} }) {
            next unless defined($aflag) ;
            $err .= flag_handler(
                $aflag->{'name'},   $aflag->{'status'},
                $aflag->{'setter'}, $aflag->{'requestee'},
                $exporterid,        $id,
                $comp_id,           $prod_id,
                $att_id
            );
        }
    }

    # Clear the attachments array for the next bug
    @attachments = ();

    # Insert comments and append any errors
    my $worktime = $bug_fields{'actual_time'} || 0.0;
    $worktime = 0.0 if (!$exporter->is_timetracker);
    $comments .= "\n$err\n" if $err;

    my $sth_comment =
      $dbh->prepare('INSERT INTO longdescs (bug_id, who, bug_when, isprivate,
                                            thetext, work_time)
                     VALUES (?, ?, ?, ?, ?, ?)');

    foreach my $c (@sorted_descs) {
        $sth_comment->execute($id, $c->{whoid} || $exporterid, $c->{bug_when},
                              $c->{isprivate}, $c->{thetext}, 0);
    }
    $sth_comment->execute($id, $exporterid, $timestamp, 0, $comments, $worktime);
    Bugzilla::Bug->new($id)->_sync_fulltext('new_bug');

    # Add this bug to each group of which its product is a member.
    my $sth_group = $dbh->prepare("INSERT INTO bug_group_map (bug_id, group_id) 
                         VALUES (?, ?)");
    foreach my $group_id ( keys %{ $product->group_controls } ) {
        if ($product->group_controls->{$group_id}->{'membercontrol'} != CONTROLMAPNA
            && $product->group_controls->{$group_id}->{'othercontrol'} != CONTROLMAPNA){
            $sth_group->execute( $id, $group_id );
        }
    }

    $log .= "Bug ${url}$bug_fields{'bug_id'} ";
    $log .= "imported as bug $id.\n";
    $log .= $params->{"urlbase"} . "show_bug.cgi?id=$id\n\n";
    if ($err) {
        $log .= "The following problems were encountered while creating bug $id.\n";
        $log .= $err;
        $log .= "You may have to set certain fields in the new bug by hand.\n\n";
    }
    Debug( $log, OK_LEVEL );
    push(@logs, $log);
    Bugzilla::BugMail::Send( $id, { 'changer' => $exporter } ) if ($mail);

    # done with the xml data. Lets clear it from memory
    $twig->purge;

}

Debug( "Reading xml", DEBUG_LEVEL );

# Read STDIN in slurp mode. VERY dangerous, but we live on the wild side ;-)
local ($/);
$xml = <>;

# If there's anything except whitespace before <?xml then we guess it's a mail
# and MIME::Parser should parse it. Else don't.
if ($xml =~ m/\S.*<\?xml/s ) {

    # If the email was encoded (Mailer::MessageToMTA() does it when using UTF-8),
    # we have to decode it first, else the XML parsing will fail.
    my $parser = MIME::Parser->new;
    $parser->output_to_core(1);
    $parser->tmp_to_core(1);
    my $entity = $parser->parse_data($xml);
    my $bodyhandle = $entity->bodyhandle;
    $xml = $bodyhandle->as_string;

}

# remove everything in file before xml header
$xml =~ s/^.+(<\?xml version.+)$/$1/s;

Debug( "Parsing tree", DEBUG_LEVEL );
my $twig = XML::Twig->new(
    twig_handlers => {
        bug        => \&process_bug,
        attachment => \&process_attachment
    },
    start_tag_handlers => { bugzilla => \&init }
);
$twig->parse($xml);
my $root       = $twig->root;
my $maintainer = $root->{'att'}->{'maintainer'};
my $exporter   = $root->{'att'}->{'exporter'};
my $urlbase    = $root->{'att'}->{'urlbase'};

# It is time to email the result of the import.
my $log = join("\n\n", @logs);
$log .=  "\n\nImported $bugtotal bug(s) from $urlbase,\n  sent by $exporter.\n";
my $subject =  "$bugtotal Bug(s) successfully moved from $urlbase to " 
   . $params->{"urlbase"};
my @to = ($exporter, $maintainer);
MailMessage( $subject, $log, @to );

__END__

=head1 NAME

importxml - Import bugzilla bug data from xml.

=head1 SYNOPSIS

 importxml.pl [options] [file ...]

=head1 OPTIONS

=over

=item B<-?>

Print a brief help message and exit.

=item B<-v>

Print error and debug information. Mulltiple -v increases verbosity

=item B<-m> B<--sendmail>

Send mail to exporter with a log of bugs imported and any errors.

=item B<--attach_path>

The path to the attachment files. (Required if encoding="filename"
is used for attachments.)

=item B<--bug_page>

The page that links to the bug on top of urlbase. Its default value
is "show_bug.cgi?id=", which is what Bugzilla installations use.
You only need to pass this argument if you are importing bugs from
another bug tracking system.

=item B<--product=name>

The product to put the bug in if the product specified in the
XML doesn't exist.

=item B<--component=name>

The component to put the bug in if the component specified in the
XML doesn't exist.

=back

=head1 DESCRIPTION

     This script is used to import bugs from another installation of bugzilla.
     It can be used in two ways.
     First using the move function of bugzilla
     on another system will send mail to an alias provided by
     the administrator of the target installation (you). Set up an alias
     similar to the one given below so this mail will be automatically 
     run by this script and imported into your database.  Run 'newaliases'
     after adding this alias to your aliases file. Make sure your sendmail
     installation is configured to allow mail aliases to execute code. 

     bugzilla-import: "|/usr/bin/perl /opt/bugzilla/importxml.pl --mail"

     Second it can be run from the command line with any xml file from 
     STDIN that conforms to the bugzilla DTD. In this case you can pass 
     an argument to set whether you want to send the
     mail that will be sent to the exporter and maintainer normally.

     importxml.pl [options] bugsfile.xml

=cut