summaryrefslogtreecommitdiffstats
path: root/Bugzilla/WebService/Bug.pm
blob: ec970a581c6502da1885291a0f91318f90adbad7 (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
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
# -*- Mode: perl; indent-tabs-mode: nil -*-
#
# The contents of this file are subject to the Mozilla Public
# License Version 1.1 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
# implied. See the License for the specific language governing
# rights and limitations under the License.
#
# The Original Code is the Bugzilla Bug Tracking System.
#
# Contributor(s): Marc Schumann <wurblzap@gmail.com>
#                 Max Kanat-Alexander <mkanat@bugzilla.org>
#                 Mads Bondo Dydensborg <mbd@dbc.dk>
#                 Tsahi Asher <tsahi_75@yahoo.com>
#                 Noura Elhawary <nelhawar@redhat.com>
#                 Frank Becker <Frank@Frank-Becker.de>

package Bugzilla::WebService::Bug;

use strict;
use base qw(Bugzilla::WebService);

use Bugzilla::Comment;
use Bugzilla::Constants;
use Bugzilla::Error;
use Bugzilla::Field;
use Bugzilla::WebService::Constants;
use Bugzilla::WebService::Util qw(filter validate);
use Bugzilla::Bug;
use Bugzilla::BugMail;
use Bugzilla::Util qw(trick_taint trim);
use Bugzilla::Version;
use Bugzilla::Milestone;
use Bugzilla::Status;
use Bugzilla::Token qw(issue_hash_token);

#############
# Constants #
#############

use constant PRODUCT_SPECIFIC_FIELDS => qw(version target_milestone component);

use constant DATE_FIELDS => {
    comments => ['new_since'],
    search   => ['last_change_time', 'creation_time'],
};

use constant READ_ONLY => qw(
    attachments
    comments
    fields
    get
    history
    legal_values
    search
);

######################################################
# Add aliases here for old method name compatibility #
######################################################

BEGIN { 
  # In 3.0, get was called get_bugs
  *get_bugs = \&get;
  # Before 3.4rc1, "history" was get_history.
  *get_history = \&history;
}

###########
# Methods #
###########

sub fields {
    my ($self, $params) = validate(@_, 'ids', 'names');

    my @fields;
    if (defined $params->{ids}) {
        my $ids = $params->{ids};
        foreach my $id (@$ids) {
            my $loop_field = Bugzilla::Field->check({ id => $id });
            push(@fields, $loop_field);
        }
    }

    if (defined $params->{names}) {
        my $names = $params->{names};
        foreach my $field_name (@$names) {
            my $loop_field = Bugzilla::Field->check($field_name);
            # Don't push in duplicate fields if we also asked for this field
            # in "ids".
            if (!grep($_->id == $loop_field->id, @fields)) {
                push(@fields, $loop_field);
            }
        }
    }

    if (!defined $params->{ids} and !defined $params->{names}) {
        @fields = Bugzilla->get_fields({ obsolete => 0 });
    }

    my @fields_out;
    foreach my $field (@fields) {
        my $visibility_field = $field->visibility_field 
                               ? $field->visibility_field->name : undef;
        my $vis_value = $field->visibility_value; 
        my $value_field = $field->value_field
                          ? $field->value_field->name : undef;

        my (@values, $has_values);
        if ( ($field->is_select and $field->name ne 'product')
             or grep($_ eq $field->name, PRODUCT_SPECIFIC_FIELDS))
        {
             $has_values = 1;
             @values = @{ $self->_legal_field_values({ field => $field }) };
        }

        if (grep($_ eq $field->name, PRODUCT_SPECIFIC_FIELDS)) {
             $value_field = 'product';
        }

        my %field_data = (
           id                => $self->type('int', $field->id),
           type              => $self->type('int', $field->type),
           is_custom         => $self->type('boolean', $field->custom),
           name              => $self->type('string', $field->name),
           display_name      => $self->type('string', $field->description),
           is_on_bug_entry   => $self->type('boolean', $field->enter_bug),
           visibility_field  => $self->type('string', $visibility_field),
           visibility_values => [
               defined $vis_value ? $self->type('string', $vis_value->name)
                                  : ()
           ],
        );
        if ($has_values) {
           $field_data{value_field} = $self->type('string', $value_field);
           $field_data{values}      = \@values;
        };
        push(@fields_out, filter $params, \%field_data);
    }

    return { fields => \@fields_out };
}

sub _legal_field_values {
    my ($self, $params) = @_;
    my $field = $params->{field};
    my $field_name = $field->name;
    my $user = Bugzilla->user;

    my @result;
    if (grep($_ eq $field_name, PRODUCT_SPECIFIC_FIELDS)) {
        my @list;
        if ($field_name eq 'version') {
            @list = Bugzilla::Version->get_all;
        }
        elsif ($field_name eq 'component') {
            @list = Bugzilla::Component->get_all;
        }
        else {
            @list = Bugzilla::Milestone->get_all;
        }

        foreach my $value (@list) {
            my $sortkey = $field_name eq 'target_milestone'
                          ? $value->sortkey : 0;
            # XXX This is very slow for large numbers of values.
            my $product_name = $value->product->name;
            if ($user->can_see_product($product_name)) {
                push(@result, {
                    name    => $self->type('string', $value->name),
                    sortkey => $self->type('int', $sortkey),
                    visibility_values => [$self->type('string', $product_name)],
                });
            }
        }
    }

    elsif ($field_name eq 'bug_status') {
        my @status_all = Bugzilla::Status->get_all;
        foreach my $status (@status_all) {
            my @can_change_to;
            foreach my $change_to (@{ $status->can_change_to }) {
                # There's no need to note that a status can transition
                # to itself.
                next if $change_to->id == $status->id;
                my %change_to_hash = (
                    name => $self->type('string', $change_to->name),
                    comment_required => $self->type('boolean', 
                        $change_to->comment_required_on_change_from($status)),
                );
                push(@can_change_to, \%change_to_hash);
            }

            push (@result, {
               name          => $self->type('string', $status->name),
               is_open       => $self->type('boolean', $status->is_open),
               sortkey       => $self->type('int', $status->sortkey),
               can_change_to => \@can_change_to,
               visibility_values => [],
            });
        }
    }

    else {
        my @values = Bugzilla::Field::Choice->type($field)->get_all();
        foreach my $value (@values) {
            my $vis_val = $value->visibility_value;
            push(@result, {
                name              => $self->type('string', $value->name),
                sortkey           => $self->type('int'   , $value->sortkey),
                visibility_values => [
                    defined $vis_val ? $self->type('string', $vis_val->name) 
                                     : ()
                ],
            });
        }
    }

    return \@result;
}

sub comments {
    my ($self, $params) = validate(@_, 'ids', 'comment_ids');

    if (!(defined $params->{ids} || defined $params->{comment_ids})) {
        ThrowCodeError('params_required',
                       { function => 'Bug.comments',
                         params   => ['ids', 'comment_ids'] });
    }

    my $bug_ids = $params->{ids} || [];
    my $comment_ids = $params->{comment_ids} || [];

    my $dbh  = Bugzilla->dbh;
    my $user = Bugzilla->user;

    my %bugs;
    foreach my $bug_id (@$bug_ids) {
        my $bug = Bugzilla::Bug->check($bug_id);
        # We want the API to always return comments in the same order.
   
        my $comments = $bug->comments({ order => 'oldest_to_newest',
                                        after => $params->{new_since} });
        my @result;
        foreach my $comment (@$comments) {
            next if $comment->is_private && !$user->is_insider;
            push(@result, $self->_translate_comment($comment, $params));
        }
        $bugs{$bug->id}{'comments'} = \@result;
    }

    my %comments;
    if (scalar @$comment_ids) {
        my @ids = map { trim($_) } @$comment_ids;
        my $comment_data = Bugzilla::Comment->new_from_list(\@ids);

        # See if we were passed any invalid comment ids.
        my %got_ids = map { $_->id => 1 } @$comment_data;
        foreach my $comment_id (@ids) {
            if (!$got_ids{$comment_id}) {
                ThrowUserError('comment_id_invalid', { id => $comment_id });
            }
        }
 
        # Now make sure that we can see all the associated bugs.
        my %got_bug_ids = map { $_->bug_id => 1 } @$comment_data;
        Bugzilla::Bug->check($_) foreach (keys %got_bug_ids);

        foreach my $comment (@$comment_data) {
            if ($comment->is_private && !$user->is_insider) {
                ThrowUserError('comment_is_private', { id => $comment->id });
            }
            $comments{$comment->id} =
                $self->_translate_comment($comment, $params);
        }
    }

    return { bugs => \%bugs, comments => \%comments };
}

# Helper for Bug.comments
sub _translate_comment {
    my ($self, $comment, $filters) = @_;
    my $attach_id = $comment->is_about_attachment ? $comment->extra_data
                                                  : undef;
    return filter $filters, {
        id         => $self->type('int', $comment->id),
        bug_id     => $self->type('int', $comment->bug_id),
        author     => $self->type('string', $comment->author->login),
        time       => $self->type('dateTime', $comment->creation_ts),
        is_private => $self->type('boolean', $comment->is_private),
        text       => $self->type('string', $comment->body_full),
        attachment_id => $self->type('int', $attach_id),
    };
}

sub get {
    my ($self, $params) = validate(@_, 'ids');

    my $ids = $params->{ids};
    defined $ids || ThrowCodeError('param_required', { param => 'ids' });

    my @bugs;
    my @faults;
    foreach my $bug_id (@$ids) {
        my $bug;
        if ($params->{permissive}) {
            eval { $bug = Bugzilla::Bug->check($bug_id); };
            if ($@) {
                push(@faults, {id => $bug_id,
                               faultString => $@->faultstring,
                               faultCode => $@->faultcode,
                              }
                    );
                undef $@;
                next;
            }
        }
        else {
            $bug = Bugzilla::Bug->check($bug_id);
        }
        push(@bugs, $self->_bug_to_hash($bug, $params));
    }

    return { bugs => \@bugs, faults => \@faults };
}

# this is a function that gets bug activity for list of bug ids 
# it can be called as the following:
# $call = $rpc->call( 'Bug.history', { ids => [1,2] });
sub history {
    my ($self, $params) = validate(@_, 'ids');

    my $ids = $params->{ids};
    defined $ids || ThrowCodeError('param_required', { param => 'ids' });

    my @return;

    foreach my $bug_id (@$ids) {
        my %item;
        my $bug = Bugzilla::Bug->check($bug_id);
        $bug_id = $bug->id;
        $item{id} = $self->type('int', $bug_id);

        my ($activity) = Bugzilla::Bug::GetBugActivity($bug_id);

        my @history;
        foreach my $changeset (@$activity) {
            my %bug_history;
            $bug_history{when} = $self->type('dateTime', $changeset->{when});
            $bug_history{who}  = $self->type('string', $changeset->{who});
            $bug_history{changes} = [];
            foreach my $change (@{ $changeset->{changes} }) {
                my $attach_id = delete $change->{attachid};
                if ($attach_id) {
                    $change->{attachment_id} = $self->type('int', $attach_id);
                }
                $change->{removed} = $self->type('string', $change->{removed});
                $change->{added}   = $self->type('string', $change->{added});
                $change->{field_name} = $self->type('string',
                    delete $change->{fieldname});
                push (@{$bug_history{changes}}, $change);
            }
            
            push (@history, \%bug_history);
        }

        $item{history} = \@history;

        # alias is returned in case users passes a mixture of ids and aliases
        # then they get to know which bug activity relates to which value  
        # they passed
        if (Bugzilla->params->{'usebugaliases'}) {
            $item{alias} = $self->type('string', $bug->alias);
        }
        else {
            # For API reasons, we always want the value to appear, we just
            # don't want it to have a value if aliases are turned off.
            $item{alias} = undef;
        }

        push(@return, \%item);
    }

    return { bugs => \@return };
}

sub search {
    my ($self, $params) = @_;
    
    if ( defined($params->{offset}) and !defined($params->{limit}) ) {
        ThrowCodeError('param_required', 
                       { param => 'limit', function => 'Bug.search()' });
    }
    
    $params = Bugzilla::Bug::map_fields($params);
    delete $params->{WHERE};
    
    # Do special search types for certain fields.
    if ( my $bug_when = delete $params->{delta_ts} ) {
        $params->{WHERE}->{'delta_ts >= ?'} = $bug_when;
    }
    if (my $when = delete $params->{creation_ts}) {
        $params->{WHERE}->{'creation_ts >= ?'} = $when;
    }
    if (my $summary = delete $params->{short_desc}) {
        my @strings = ref $summary ? @$summary : ($summary);
        my @likes = ("short_desc LIKE ?") x @strings;
        my $clause = join(' OR ', @likes);
        $params->{WHERE}->{"($clause)"} = [map { "\%$_\%" } @strings];
    }
    if (my $whiteboard = delete $params->{status_whiteboard}) {
        my @strings = ref $whiteboard ? @$whiteboard : ($whiteboard);
        my @likes = ("status_whiteboard LIKE ?") x @strings;
        my $clause = join(' OR ', @likes);
        $params->{WHERE}->{"($clause)"} = [map { "\%$_\%" } @strings];
    }
    
    my $bugs = Bugzilla::Bug->match($params);
    my $visible = Bugzilla->user->visible_bugs($bugs);
    my @hashes = map { $self->_bug_to_hash($_, $params) } @$visible;
    return { bugs => \@hashes };
}

sub possible_duplicates {
    my ($self, $params) = validate(@_, 'product');
    my $user = Bugzilla->user;

    # Undo the array-ification that validate() does, for "summary".
    $params->{summary} || ThrowCodeError('param_required',
        { function => 'Bug.possible_duplicates', param => 'summary' });

    my @products;
    foreach my $name (@{ $params->{'product'} || [] }) {
        my $object = $user->can_enter_product($name, THROW_ERROR);
        push(@products, $object);
    }

    my $possible_dupes = Bugzilla::Bug->possible_duplicates(
        { summary => $params->{summary}, products => \@products,
          limit   => $params->{limit} });
    my @hashes = map { $self->_bug_to_hash($_, $params) } @$possible_dupes;
    return { bugs => \@hashes };
}

sub create {
    my ($self, $params) = @_;
    Bugzilla->login(LOGIN_REQUIRED);
    $params = Bugzilla::Bug::map_fields($params);
    my $bug = Bugzilla::Bug->create($params);
    Bugzilla::BugMail::Send($bug->bug_id, { changer => $bug->reporter });
    return { id => $self->type('int', $bug->bug_id) };
}

sub legal_values {
    my ($self, $params) = @_;
    my $field = Bugzilla::Bug::FIELD_MAP->{$params->{field}} 
                || $params->{field};

    my @global_selects = grep { !$_->is_abnormal }
                         Bugzilla->get_fields({ is_select => 1 });

    my $values;
    if (grep($_->name eq $field, @global_selects)) {
        # The field is a valid one.
        trick_taint($field);
        $values = get_legal_field_values($field);
    }
    elsif (grep($_ eq $field, PRODUCT_SPECIFIC_FIELDS)) {
        my $id = $params->{product_id};
        defined $id || ThrowCodeError('param_required',
            { function => 'Bug.legal_values', param => 'product_id' });
        grep($_->id eq $id, @{Bugzilla->user->get_accessible_products})
            || ThrowUserError('product_access_denied', { id => $id });

        my $product = new Bugzilla::Product($id);
        my @objects;
        if ($field eq 'version') {
            @objects = @{$product->versions};
        }
        elsif ($field eq 'target_milestone') {
            @objects = @{$product->milestones};
        }
        elsif ($field eq 'component') {
            @objects = @{$product->components};
        }

        $values = [map { $_->name } @objects];
    }
    else {
        ThrowCodeError('invalid_field_name', { field => $params->{field} });
    }

    my @result;
    foreach my $val (@$values) {
        push(@result, $self->type('string', $val));
    }

    return { values => \@result };
}

sub add_comment {
    my ($self, $params) = @_;
    
    #The user must login in order add a comment
    Bugzilla->login(LOGIN_REQUIRED);
    
    # Check parameters
    defined $params->{id} 
        || ThrowCodeError('param_required', { param => 'id' }); 
    my $comment = $params->{comment}; 
    (defined $comment && trim($comment) ne '')
        || ThrowCodeError('param_required', { param => 'comment' });
    
    my $bug = Bugzilla::Bug->check($params->{id});
    
    Bugzilla->user->can_edit_product($bug->product_id)
        || ThrowUserError("product_edit_denied", {product => $bug->product});
    
    # Backwards-compatibility for versions before 3.6    
    if (defined $params->{private}) {
        $params->{is_private} = delete $params->{private};
    }
    # Append comment
    $bug->add_comment($comment, { isprivate => $params->{is_private},
                                  work_time => $params->{work_time} });
    
    # Capture the call to bug->update (which creates the new comment) in 
    # a transaction so we're sure to get the correct comment_id.
    
    my $dbh = Bugzilla->dbh;
    $dbh->bz_start_transaction();
    
    $bug->update();
    
    my $new_comment_id = $dbh->bz_last_key('longdescs', 'comment_id');
    
    $dbh->bz_commit_transaction();
    
    # Send mail.
    Bugzilla::BugMail::Send($bug->bug_id, { changer => Bugzilla->user });
    
    return { id => $self->type('int', $new_comment_id) };
}

sub update_see_also {
    my ($self, $params) = @_;

    my $user = Bugzilla->login(LOGIN_REQUIRED);

    # Check parameters
    $params->{ids}
        || ThrowCodeError('param_required', { param => 'id' });
    my ($add, $remove) = @$params{qw(add remove)};
    ($add || $remove)
        or ThrowCodeError('params_required', { params => ['add', 'remove'] });

    my @bugs;
    foreach my $id (@{ $params->{ids} }) {
        my $bug = Bugzilla::Bug->check($id);
        $user->can_edit_product($bug->product_id)
            || ThrowUserError("product_edit_denied", 
                              { product => $bug->product });
        push(@bugs, $bug);
        if ($remove) {
            $bug->remove_see_also($_) foreach @$remove;
        }
        if ($add) {
            $bug->add_see_also($_) foreach @$add;
        }
    }
    
    my %changes;
    foreach my $bug (@bugs) {
        my $change = $bug->update();
        if (my $see_also = $change->{see_also}) {
            $changes{$bug->id}->{see_also} = {
                removed => [split(', ', $see_also->[0])],
                added   => [split(', ', $see_also->[1])],
            };
        }
        else {
            # We still want a changes entry, for API consistency.
            $changes{$bug->id}->{see_also} = { added => [], removed => [] };
        }

        Bugzilla::BugMail::Send($bug->id, { changer => $user });
    }

    return { changes => \%changes };
}

sub attachments {
    my ($self, $params) = validate(@_, 'ids', 'attachment_ids');

    if (!(defined $params->{ids}
          or defined $params->{attachment_ids}))
    {
        ThrowCodeError('param_required',
                       { function => 'Bug.attachments', 
                         params   => ['ids', 'attachment_ids'] });
    }

    my $ids = $params->{ids} || [];
    my $attach_ids = $params->{attachment_ids} || [];

    my %bugs;
    foreach my $bug_id (@$ids) {
        my $bug = Bugzilla::Bug->check($bug_id);
        $bugs{$bug->id} = [];
        foreach my $attach (@{$bug->attachments}) {
            push @{$bugs{$bug->id}},
                $self->_attachment_to_hash($attach, $params);
        }
    }

    my %attachments;
    foreach my $attach (@{Bugzilla::Attachment->new_from_list($attach_ids)}) {
        Bugzilla::Bug->check($attach->bug_id);
        if ($attach->isprivate && !Bugzilla->user->is_insider) {
            ThrowUserError('auth_failure', {action    => 'access',
                                            object    => 'attachment',
                                            attach_id => $attach->id});
        }
        $attachments{$attach->id} =
            $self->_attachment_to_hash($attach, $params);
    }

    return { bugs => \%bugs, attachments => \%attachments };
}

##############################
# Private Helper Subroutines #
##############################

# A helper for get() and search().
sub _bug_to_hash {
    my ($self, $bug, $filters) = @_;

    # Timetracking fields are deleted if the user doesn't belong to
    # the corresponding group.
    unless (Bugzilla->user->is_timetracker) {
        delete $bug->{'estimated_time'};
        delete $bug->{'remaining_time'};
        delete $bug->{'deadline'};
    }

    # This is done in this fashion in order to produce a stable API.
    # The internals of Bugzilla::Bug are not stable enough to just
    # return them directly.
    my %item;
    $item{'internals'}        = $bug;
    $item{'creation_time'}    = $self->type('dateTime', $bug->creation_ts);
    $item{'last_change_time'} = $self->type('dateTime', $bug->delta_ts);
    $item{'id'}               = $self->type('int', $bug->bug_id);
    $item{'summary'}          = $self->type('string', $bug->short_desc);
    $item{'assigned_to'}      = $self->type('string', $bug->assigned_to->login);
    $item{'resolution'}       = $self->type('string', $bug->resolution);
    $item{'status'}           = $self->type('string', $bug->bug_status);
    $item{'is_open'}          = $self->type('boolean', $bug->status->is_open);
    $item{'severity'}         = $self->type('string', $bug->bug_severity);
    $item{'priority'}         = $self->type('string', $bug->priority);
    $item{'product'}          = $self->type('string', $bug->product);
    $item{'component'}        = $self->type('string', $bug->component);
    $item{'dupe_of'}          = $self->type('int', $bug->dup_id);

    if (Bugzilla->user->id) {
        my $token = issue_hash_token([$bug->id, $bug->delta_ts]);
        $item{'update_token'} = $self->type('string', $token);
    }

    # if we do not delete this key, additional user info, including their
    # real name, etc, will wind up in the 'internals' hashref
    delete $item{internals}->{assigned_to_obj};

    if (Bugzilla->params->{'usebugaliases'}) {
        $item{'alias'} = $self->type('string', $bug->alias);
    }
    else {
        # For API reasons, we always want the value to appear, we just
        # don't want it to have a value if aliases are turned off.
        $item{'alias'} = undef;
    }

    return filter $filters, \%item;
}

sub _attachment_to_hash {
    my ($self, $attach, $filters) = @_;

    # Skipping attachment flags for now.
    delete $attach->{flags};

    my $attacher = new Bugzilla::User($attach->attacher->id);

    return filter $filters, {
        creation_time    => $self->type('dateTime', $attach->attached),
        last_change_time => $self->type('dateTime', $attach->modification_time),
        id               => $self->type('int', $attach->id),
        bug_id           => $self->type('int', $attach->bug->id),
        file_name        => $self->type('string', $attach->filename),
        description      => $self->type('string', $attach->description),
        content_type     => $self->type('string', $attach->contenttype),
        is_private       => $self->type('int', $attach->isprivate),
        is_obsolete      => $self->type('int', $attach->isobsolete),
        is_url           => $self->type('int', $attach->isurl),
        is_patch         => $self->type('int', $attach->ispatch),
        attacher         => $self->type('string', $attacher->login)
    };
}

1;

__END__

=head1 NAME

Bugzilla::Webservice::Bug - The API for creating, changing, and getting the
details of bugs.

=head1 DESCRIPTION

This part of the Bugzilla API allows you to file a new bug in Bugzilla,
or get information about bugs that have already been filed.

=head1 METHODS

See L<Bugzilla::WebService> for a description of how parameters are passed,
and what B<STABLE>, B<UNSTABLE>, and B<EXPERIMENTAL> mean.

=head2 Utility Functions

=over

=item C<fields>

B<UNSTABLE>

=over

=item B<Description>

Get information about valid bug fields, including the lists of legal values
for each field.

=item B<Params>

You can pass either field ids or field names.

B<Note>: If neither C<ids> nor C<names> is specified, then all 
non-obsolete fields will be returned.

In addition to the parameters below, this method also accepts the
standard L<include_fields|Bugzilla::WebService/include_fields> and
L<exclude_fields|Bugzilla::WebService/exclude_fields> arguments.

=over

=item C<ids>   (array) - An array of integer field ids.

=item C<names> (array) - An array of strings representing field names.

=back

=item B<Returns>

A hash containing a single element, C<fields>. This is an array of hashes,
containing the following keys:

=over

=item C<id>

C<int> An integer id uniquely idenfifying this field in this installation only.

=item C<type>

C<int> The number of the fieldtype. The following values are defined:

=over

=item C<0> Unknown

=item C<1> Free Text

=item C<2> Drop Down

=item C<3> Multiple-Selection Box

=item C<4> Large Text Box

=item C<5> Date/Time

=item C<6> Bug Id

=item C<7> Bug URLs ("See Also")

=back

=item C<is_custom>

C<boolean> True when this is a custom field, false otherwise.

=item C<name>

C<string> The internal name of this field. This is a unique identifier for
this field. If this is not a custom field, then this name will be the same
across all Bugzilla installations.

=item C<display_name>

C<string> The name of the field, as it is shown in the user interface.

=item C<is_on_bug_entry>

C<boolean> For custom fields, this is true if the field is shown when you
enter a new bug. For standard fields, this is currently always false,
even if the field shows up when entering a bug. (To know whether or not
a standard field is valid on bug entry, see L</create>.)

=item C<visibility_field>

C<string>  The name of a field that controls the visibility of this field
in the user interface. This field only appears in the user interface when
the named field is equal to one of the values in C<visibility_values>.
Can be null.

=item C<visibility_values>

C<array> of C<string>s This field is only shown when C<visibility_field>
matches one of these values. When C<visibility_field> is null,
then this is an empty array.

=item C<value_field>

C<string>  The name of the field that controls whether or not particular
values of the field are shown in the user interface. Can be null.

=item C<values>

This is an array of hashes, representing the legal values for
select-type (drop-down and multiple-selection) fields. This is also
populated for the C<component>, C<version>, and C<target_milestone>
fields, but not for the C<product> field (you must use
L<Product.get_accessible_products|Bugzilla::WebService::Product/get_accessible_products>
for that.

For fields that aren't select-type fields, this will simply be an empty
array.

Each hash has the following keys:

=over 

=item C<name>

C<string> The actual value--this is what you would specify for this
field in L</create>, etc.

=item C<sortkey>

C<int> Values, when displayed in a list, are sorted first by this integer
and then secondly by their name.

=item C<visibility_values>

If C<value_field> is defined for this field, then this value is only shown
if the C<value_field> is set to one of the values listed in this array.
Note that for per-product fields, C<value_field> is set to C<'product'>
and C<visibility_values> will reflect which product(s) this value appears in.

=item C<is_open>

C<boolean> For C<bug_status> values, determines whether this status
specifies that the bug is "open" (true) or "closed" (false). This item
is only included for the C<bug_status> field.

=item C<can_change_to>

For C<bug_status> values, this is an array of hashes that determines which
statuses you can transition to from this status. (This item is only included
for the C<bug_status> field.)

Each hash contains the following items:

=over

=item C<name>

the name of the new status

=item C<comment_required>

this C<boolean> True if a comment is required when you change a bug into
this status using this transition.

=back

=back

=back

=item B<Errors>

=over

=item 51 (Invalid Field Name or Id)

You specified an invalid field name or id.

=back

=item B<History>

=over

=item Added in Bugzilla B<3.6>.

=back

=back


=item C<legal_values> 

B<DEPRECATED> - Use L</fields> instead.

=over

=item B<Description>

Tells you what values are allowed for a particular field.

=item B<Params>

=over

=item C<field> - The name of the field you want information about.
This should be the same as the name you would use in L</create>, below.

=item C<product_id> - If you're picking a product-specific field, you have
to specify the id of the product you want the values for.

=back

=item B<Returns> 

C<values> - An array of strings: the legal values for this field.
The values will be sorted as they normally would be in Bugzilla.

=item B<Errors>

=over

=item 106 (Invalid Product)

You were required to specify a product, and either you didn't, or you
specified an invalid product (or a product that you can't access).

=item 108 (Invalid Field Name)

You specified a field that doesn't exist or isn't a drop-down field.

=back

=back


=back

=head2 Bug Information

=over


=item C<attachments>

B<EXPERIMENTAL>

=over

=item B<Description>

It allows you to get data about attachments, given a list of bugs
and/or attachment ids.

B<Note>: Private attachments will only be returned if you are in the 
insidergroup or if you are the submitter of the attachment.

=item B<Params>

B<Note>: At least one of C<ids> or C<attachment_ids> is required.

=over

=item C<ids>

See the description of the C<ids> parameter in the L</get> method.

=item C<attachment_ids>

C<array> An array of integer attachment ids.

=back

=item B<Returns>

A hash containing two elements: C<bugs> and C<attachments>. The return
value looks like this:

 {
     bugs => {
         1345 => {
             attachments => [
                 { (attachment) },
                 { (attachment) }
             ]
         },
         9874 => {
             attachments => [
                 { (attachment) },
                 { (attachment) }
             ]

         },
     },

     attachments => {
         234 => { (attachment) },
         123 => { (attachment) },
     }
 }

The attachments of any bugs that you specified in the C<ids> argument in
input are returned in C<bugs> on output. C<bugs> is a hash that has integer
bug IDs for keys and contains a single key, C<attachments>. That key points
to an arrayref that contains attachments as a hash. (Fields for attachments
are described below.)

For any attachments that you specified directly in C<attachment_ids>, they
are returned in C<attachments> on output. This is a hash where the attachment
ids point directly to hashes describing the individual attachment.

The fields for each attachment (where it says C<(attachment)> in the
diagram above) are:

=over

=item C<creation_time>

C<dateTime> The time the attachment was created.

=item C<last_change_time>

C<dateTime> The last time the attachment was modified.

=item C<id>

C<int> The numeric id of the attachment.

=item C<bug_id>

C<int> The numeric id of the bug that the attachment is attached to.

=item C<file_name>

C<string> The file name of the attachment.

=item C<description>

C<string> The description for the attachment.

=item C<content_type>

C<string> The MIME type of the attachment.

=item C<is_private>

C<boolean> True if the attachment is private (only visible to a certain
group called the "insidergroup"), False otherwise.

=item C<is_obsolete>

C<boolean> True if the attachment is obsolete, False otherwise.

=item C<is_url>

C<boolean> True if the attachment is a URL instead of actual data,
False otherwise. Note that such attachments only happen when the 
Bugzilla installation has at some point had the C<allow_attach_url>
parameter enabled.

=item C<is_patch>

C<boolean> True if the attachment is a patch, False otherwise.

=item C<attacher>

C<string> The login name of the user that created the attachment.

=back

=item B<Errors>

This method can throw all the same errors as L</get>. In addition,
it can also throw the following error:

=over

=item 304 (Auth Failure, Attachment is Private)

You specified the id of a private attachment in the C<attachment_ids>
argument, and you are not in the "insider group" that can see
private attachments.

=back

=item B<History>

=over

=item Added in Bugzilla B<3.6>.

=back

=back


=item C<comments>

B<STABLE>

=over

=item B<Description>

This allows you to get data about comments, given a list of bugs 
and/or comment ids.

=item B<Params>

B<Note>: At least one of C<ids> or C<comment_ids> is required.

In addition to the parameters below, this method also accepts the
standard L<include_fields|Bugzilla::WebService/include_fields> and
L<exclude_fields|Bugzilla::WebService/exclude_fields> arguments.

=over

=item C<ids>

C<array> An array that can contain both bug IDs and bug aliases.
All of the comments (that are visible to you) will be returned for the
specified bugs.

=item C<comment_ids> 

C<array> An array of integer comment_ids. These comments will be
returned individually, separate from any other comments in their
respective bugs.

=item C<new_since>

C<dateTime> If specified, the method will only return comments I<newer>
than this time. This only affects comments returned from the C<ids>
argument. You will always be returned all comments you request in the
C<comment_ids> argument, even if they are older than this date.

=back

=item B<Returns>

Two items are returned:

=over

=item C<bugs>

This is used for bugs specified in C<ids>. This is a hash,
where the keys are the numeric ids of the bugs, and the value is
a hash with a single key, C<comments>, which is an array of comments.
(The format of comments is described below.)

Note that any individual bug will only be returned once, so if you
specify an id multiple times in C<ids>, it will still only be
returned once.

=item C<comments>

Each individual comment requested in C<comment_ids> is returned here,
in a hash where the numeric comment id is the key, and the value
is the comment. (The format of comments is described below.) 

=back

A "comment" as described above is a hash that contains the following
keys:

=over

=item id

C<int> The globally unique ID for the comment.

=item bug_id

C<int> The ID of the bug that this comment is on.

=item attachment_id

C<int> If the comment was made on an attachment, this will be the
ID of that attachment. Otherwise it will be null.

=item text

C<string> The actual text of the comment.

=item author

C<string> The login name of the comment's author.

=item time

C<dateTime> The time (in Bugzilla's timezone) that the comment was added.

=item is_private

C<boolean> True if this comment is private (only visible to a certain
group called the "insidergroup"), False otherwise.

=back

=item B<Errors>

This method can throw all the same errors as L</get>. In addition,
it can also throw the following errors:

=over

=item 110 (Comment Is Private)

You specified the id of a private comment in the C<comment_ids>
argument, and you are not in the "insider group" that can see
private comments.

=item 111 (Invalid Comment ID)

You specified an id in the C<comment_ids> argument that is invalid--either
you specified something that wasn't a number, or there is no comment with
that id.

=back

=item B<History>

=over

=item Added in Bugzilla B<3.4>.

=item C<attachment_id> was added to the return value in Bugzilla B<3.6>.

=back

=back


=item C<get> 

B<STABLE>

=over

=item B<Description>

Gets information about particular bugs in the database.

Note: Can also be called as "get_bugs" for compatibilty with Bugzilla 3.0 API.

=item B<Params>

=over

=item C<ids>

An array of numbers and strings.

If an element in the array is entirely numeric, it represents a bug_id
from the Bugzilla database to fetch. If it contains any non-numeric 
characters, it is considered to be a bug alias instead, and the bug with 
that alias will be loaded. 

Note that it's possible for aliases to be disabled in Bugzilla, in which
case you will be told that you have specified an invalid bug_id if you
try to specify an alias. (It will be error 100.)

=item C<permissive> B<EXPERIMENTAL>

C<boolean> Normally, if you request any inaccessible or invalid bug ids,
Bug.get will throw an error. If this parameter is True, instead of throwing an
error we return an array of hashes with a C<id>, C<faultString> and C<faultCode> 
for each bug that fails, and return normal information for the other bugs that 
were accessible.

=back

=item B<Returns>

Two items are returned:

=over

=item C<bugs>

An array of hashes that contains information about the bugs with 
the valid ids. Each hash contains the following items:

=over

=item alias

C<string> The alias of this bug. If there is no alias or aliases are 
disabled in this Bugzilla, this will be an empty string.

=item assigned_to 

C<string> The login name of the user to whom the bug is assigned.

=item component

C<string> The name of the current component of this bug.

=item creation_time

C<dateTime> When the bug was created.

=item dupe_of

C<int> The bug ID of the bug that this bug is a duplicate of. If this bug 
isn't a duplicate of any bug, this will be an empty int.

=item id

C<int> The numeric bug_id of this bug.

=item internals B<DEPRECATED>

A hash. The internals of a L<Bugzilla::Bug> object. This is extremely
unstable, and you should only rely on this if you absolutely have to. The
structure of the hash may even change between point releases of Bugzilla.

This will be disappearing in a future version of Bugzilla.

=item is_open 

C<boolean> Returns true (1) if this bug is open, false (0) if it is closed.

=item last_change_time

C<dateTime> When the bug was last changed.

=item priority

C<string> The priority of the bug.

=item product

C<string> The name of the product this bug is in.

=item resolution

C<string> The current resolution of the bug, or an empty string if the bug is open. 

=item severity

C<string> The current severity of the bug.

=item status 

C<string> The current status of the bug.

=item summary

C<string> The summary of this bug.

=back

=item C<faults> B<EXPERIMENTAL>

An array of hashes that contains invalid bug ids with error messages
returned for them. Each hash contains the following items:

=over

=item id

C<int> The numeric bug_id of this bug.

=item faultString 

c<string> This will only be returned for invalid bugs if the C<permissive>
argument was set when calling Bug.get, and it is an error indicating that 
the bug id was invalid.

=item faultCode

c<int> This will only be returned for invalid bugs if the C<permissive>
argument was set when calling Bug.get, and it is the error code for the 
invalid bug error.

=back

=back

=item B<Errors>

=over

=item 100 (Invalid Bug Alias)

If you specified an alias and either: (a) the Bugzilla you're querying
doesn't support aliases or (b) there is no bug with that alias.

=item 101 (Invalid Bug ID)

The bug_id you specified doesn't exist in the database.

=item 102 (Access Denied)

You do not have access to the bug_id you specified.

=back

=item B<History>

=over

=item C<permissive> argument added to this method's params in Bugzilla B<3.4>. 

=item The following properties were added to this method's return values
in Bugzilla B<3.4>:

=over

=item For C<bugs>

=over

=item assigned_to

=item component 

=item dupe_of

=item is_open

=item priority

=item product

=item resolution

=item severity

=item status

=back 

=item C<faults>

=back 

=back


=back

=item C<history> 

B<EXPERIMENTAL>

=over

=item B<Description>

Gets the history of changes for particular bugs in the database.

=item B<Params>

=over

=item C<ids>

An array of numbers and strings.

If an element in the array is entirely numeric, it represents a bug_id 
from the Bugzilla database to fetch. If it contains any non-numeric 
characters, it is considered to be a bug alias instead, and the data bug 
with that alias will be loaded. 

Note that it's possible for aliases to be disabled in Bugzilla, in which
case you will be told that you have specified an invalid bug_id if you
try to specify an alias. (It will be error 100.)

=back

=item B<Returns>

A hash containing a single element, C<bugs>. This is an array of hashes,
containing the following keys:

=over

=item id

C<int> The numeric id of the bug.

=item alias

C<string> The alias of this bug. If there is no alias or aliases are 
disabled in this Bugzilla, this will be undef.

=item history

C<array> An array of hashes, each hash having the following keys:

=over

=item when

C<dateTime> The date the bug activity/change happened.

=item who

C<string> The login name of the user who performed the bug change.

=item changes

C<array> An array of hashes which contain all the changes that happened
to the bug at this time (as specified by C<when>). Each hash contains 
the following items:

=over

=item field_name

C<string> The name of the bug field that has changed.

=item removed

C<string> The previous value of the bug field which has been deleted 
by the change.

=item added

C<string> The new value of the bug field which has been added by the change.

=item attachment_id

C<int> The id of the attachment that was changed. This only appears if 
the change was to an attachment, otherwise C<attachment_id> will not be
present in this hash.

=back

=back

=back

=item B<Errors>

The same as L</get>.

=item B<History>

=over

=item Added in Bugzilla B<3.4>.

=back

=back


=item C<search>

B<UNSTABLE>

=over

=item B<Description>

Allows you to search for bugs based on particular criteria.

=item B<Params>

Unless otherwise specified in the description of a parameter, bugs are
returned if they match I<exactly> the criteria you specify in these 
parameters. That is, we don't match against substrings--if a bug is in
the "Widgets" product and you ask for bugs in the "Widg" product, you
won't get anything.

Criteria are joined in a logical AND. That is, you will be returned
bugs that match I<all> of the criteria, not bugs that match I<any> of
the criteria.

Each parameter can be either the type it says, or an array of the types
it says. If you pass an array, it means "Give me bugs with I<any> of
these values." For example, if you wanted bugs that were in either
the "Foo" or "Bar" products, you'd pass:

 product => ['Foo', 'Bar']

Some Bugzillas may treat your arguments case-sensitively, depending
on what database system they are using. Most commonly, though, Bugzilla is 
not case-sensitive with the arguments passed (because MySQL is the 
most-common database to use with Bugzilla, and MySQL is not case sensitive).

=over

=item C<alias>

C<string> The unique alias for this bug. Note that you can search
by alias even if the alias field is disabled in this Bugzilla, but
it's likely that there won't be any aliases set on bugs, in that case.

=item C<assigned_to>

C<string> The login name of a user that a bug is assigned to.

=item C<component>

C<string> The name of the Component that the bug is in. Note that
if there are multiple Compoonents with the same name, and you search
for that name, bugs in I<all> those Components will be returned. If you
don't want this, be sure to also specify the C<product> argument.

=item C<creation_time>

C<dateTime> Searches for bugs that were created at this time or later.
May not be an array.

=item C<id>

C<int> The numeric id of the bug.

=item C<last_change_time>

C<dateTime> Searches for bugs that were modified at this time or later.
May not be an array.

=item C<limit>

C<int> Limit the number of results returned to C<int> records.

=item C<offset>

C<int> Used in conjunction with the C<limit> argument, C<offset> defines 
the starting position for the search. For example, given a search that 
would return 100 bugs, setting C<limit> to 10 and C<offset> to 10 would return 
bugs 11 through 20 from the set of 100.

=item C<op_sys>

C<string> The "Operating System" field of a bug.

=item C<platform>

C<string> The Platform (sometimes called "Hardware") field of a bug.

=item C<priority>

C<string> The Priority field on a bug.

=item C<product>

C<string> The name of the Product that the bug is in.

=item C<reporter>

C<string> The login name of the user who reported the bug.

=item C<resolution>

C<string> The current resolution--only set if a bug is closed. You can
find open bugs by searching for bugs with an empty resolution.

=item C<severity>

C<string> The Severity field on a bug.

=item C<status>

C<string> The current status of a bug (not including its resolution,
if it has one, which is a separate field above).

=item C<summary>

C<string> Searches for substrings in the single-line Summary field on
bugs. If you specify an array, then bugs whose summaries match I<any> of the
passed substrings will be returned.

Note that unlike searching in the Bugzilla UI, substrings are not split
on spaces. So searching for C<foo bar> will match "This is a foo bar"
but not "This foo is a bar". C<['foo', 'bar']>, would, however, match
the second item.

=item C<target_milestone>

C<string> The Target Milestone field of a bug. Note that even if this
Bugzilla does not have the Target Milestone field enabled, you can
still search for bugs by Target Milestone. However, it is likely that
in that case, most bugs will not have a Target Milestone set (it
defaults to "---" when the field isn't enabled).

=item C<qa_contact>

C<string> The login name of the bug's QA Contact. Note that even if
this Bugzilla does not have the QA Contact field enabled, you can
still search for bugs by QA Contact (though it is likely that no bug
will have a QA Contact set, if the field is disabled).

=item C<url>

C<string> The "URL" field of a bug.

=item C<version>

C<string> The Version field of a bug.

=item C<whiteboard>

C<string> Search the "Status Whiteboard" field on bugs for a substring.
Works the same as the C<summary> field described above, but searches the
Status Whiteboard field.

=back

=item B<Returns>

The same as L</get>.

Note that you will only be returned information about bugs that you
can see. Bugs that you can't see will be entirely excluded from the
results. So, if you want to see private bugs, you will have to first 
log in and I<then> call this method.

=item B<Errors>

Currently, this function doesn't throw any special errors (other than
the ones that all webservice functions can throw). If you specify
an invalid value for a particular field, you just won't get any results
for that value.

=item B<History>

=over

=item Added in Bugzilla B<3.4>.

=item Searching by C<votes> was removed in Bugzilla B<4.0>.

=back

=back


=back

=head2 Bug Creation and Modification

=over


=item C<create> 

B<STABLE>

=over

=item B<Description>

This allows you to create a new bug in Bugzilla. If you specify any
invalid fields, they will be ignored. If you specify any fields you
are not allowed to set, they will just be set to their defaults or ignored.

You cannot currently set all the items here that you can set on enter_bug.cgi.

The WebService interface may allow you to set things other than those listed
here, but realize that anything undocumented is B<UNSTABLE> and will very
likely change in the future.

=item B<Params>

Some params must be set, or an error will be thrown. These params are
marked B<Required>. 

Some parameters can have defaults set in Bugzilla, by the administrator.
If these parameters have defaults set, you can omit them. These parameters
are marked B<Defaulted>.

Clients that want to be able to interact uniformly with multiple
Bugzillas should always set both the params marked B<Required> and those 
marked B<Defaulted>, because some Bugzillas may not have defaults set
for B<Defaulted> parameters, and then this method will throw an error
if you don't specify them.

The descriptions of the parameters below are what they mean when Bugzilla is
being used to track software bugs. They may have other meanings in some
installations.

=over

=item C<product> (string) B<Required> - The name of the product the bug
is being filed against.

=item C<component> (string) B<Required> - The name of a component in the
product above.

=item C<summary> (string) B<Required> - A brief description of the bug being
filed.

=item C<version> (string) B<Required> - A version of the product above;
the version the bug was found in.

=item C<description> (string) B<Defaulted> - The initial description for 
this bug. Some Bugzilla installations require this to not be blank.

=item C<op_sys> (string) B<Defaulted> - The operating system the bug was
discovered on.

=item C<platform> (string) B<Defaulted> - What type of hardware the bug was
experienced on.

=item C<priority> (string) B<Defaulted> - What order the bug will be fixed
in by the developer, compared to the developer's other bugs.

=item C<severity> (string) B<Defaulted> - How severe the bug is.

=item C<alias> (string) - A brief alias for the bug that can be used 
instead of a bug number when accessing this bug. Must be unique in
all of this Bugzilla.

=item C<assigned_to> (username) - A user to assign this bug to, if you
don't want it to be assigned to the component owner.

=item C<cc> (array) - An array of usernames to CC on this bug.

=item C<groups> (array) - An array of group names to put this
bug into. You can see valid group names on the Permissions
tab of the Preferences screen, or, if you are an administrator,
in the Groups control panel. Note that invalid group names or
groups that the bug can't be restricted to are silently ignored. If
you don't specify this argument, then a bug will be added into
all the groups that are set as being "Default" for this product. (If
you want to avoid that, you should specify C<groups> as an empty array.)

=item C<qa_contact> (username) - If this installation has QA Contacts
enabled, you can set the QA Contact here if you don't want to use
the component's default QA Contact.

=item C<status> (string) - The status that this bug should start out as.
Note that only certain statuses can be set on bug creation.

=item C<target_milestone> (string) - A valid target milestone for this
product.

=back

In addition to the above parameters, if your installation has any custom
fields, you can set them just by passing in the name of the field and
its value as a string.

=item B<Returns>

A hash with one element, C<id>. This is the id of the newly-filed bug.

=item B<Errors>

=over

=item 51 (Invalid Object)

The component you specified is not valid for this Product.

=item 103 (Invalid Alias)

The alias you specified is invalid for some reason. See the error message
for more details.

=item 104 (Invalid Field)

One of the drop-down fields has an invalid value, or a value entered in a
text field is too long. The error message will have more detail.

=item 105 (Invalid Component)

You didn't specify a component.

=item 106 (Invalid Product)

Either you didn't specify a product, this product doesn't exist, or
you don't have permission to enter bugs in this product.

=item 107 (Invalid Summary)

You didn't specify a summary for the bug.

=item 504 (Invalid User)

Either the QA Contact, Assignee, or CC lists have some invalid user
in them. The error message will have more details.

=back

=item B<History>

=over

=item Before B<3.0.4>, parameters marked as B<Defaulted> were actually
B<Required>, due to a bug in Bugzilla.

=item The C<groups> argument was added in Bugzilla B<4.0>. Before
Bugzilla 4.0, bugs were only added into Mandatory groups by this
method.

=back

=back

=item C<add_comment> 

B<STABLE>

=over

=item B<Description>

This allows you to add a comment to a bug in Bugzilla.

=item B<Params>

=over

=item C<id> (int) B<Required> - The id or alias of the bug to append a 
comment to.

=item C<comment> (string) B<Required> - The comment to append to the bug.
If this is empty or all whitespace, an error will be thrown saying that
you did not set the C<comment> parameter.

=item C<is_private> (boolean) - If set to true, the comment is private, 
otherwise it is assumed to be public.

=item C<work_time> (double) - Adds this many hours to the "Hours Worked"
on the bug. If you are not in the time tracking group, this value will
be ignored.


=back

=item B<Returns>

A hash with one element, C<id> whose value is the id of the newly-created comment.

=item B<Errors>

=over

=item 54 (Hours Worked Too Large)

You specified a C<work_time> larger than the maximum allowed value of
C<99999.99>.

=item 100 (Invalid Bug Alias) 

If you specified an alias and either: (a) the Bugzilla you're querying
doesn't support aliases or (b) there is no bug with that alias.

=item 101 (Invalid Bug ID)

The id you specified doesn't exist in the database.

=item 108 (Bug Edit Denied)

You did not have the necessary rights to edit the bug.

=item 113 (Can't Make Private Comments)

You tried to add a private comment, but don't have the necessary rights.

=item 114 (Comment Too Long)

You tried to add a comment longer than the maximum allowed length
(65,535 characters).

=back

=item B<History>

=over

=item Added in Bugzilla B<3.2>.

=item Modified to return the new comment's id in Bugzilla B<3.4>

=item Modified to throw an error if you try to add a private comment
but can't, in Bugzilla B<3.4>.

=item Before Bugzilla B<3.6>, the C<is_private> argument was called
C<private>, and you can still call it C<private> for backwards-compatibility
purposes if you wish.

=item Before Bugzilla B<3.6>, error 54 and error 114 had a generic error
code of 32000.

=back

=back


=item C<update_see_also>

B<EXPERIMENTAL>

=over

=item B<Description>

Adds or removes URLs for the "See Also" field on bugs. These URLs must
point to some valid bug in some Bugzilla installation or in Launchpad.

=item B<Params>

=over

=item C<ids>

Array of C<int>s or C<string>s. The ids or aliases of bugs that you want
to modify.

=item C<add>

Array of C<string>s. URLs to Bugzilla bugs. These URLs will be added to
the See Also field. They must be valid URLs to C<show_bug.cgi> in a
Bugzilla installation or to a bug filed at launchpad.net.

If the URLs don't start with C<http://> or C<https://>, it will be assumed
that C<http://> should be added to the beginning of the string.

It is safe to specify URLs that are already in the "See Also" field on
a bug--they will just be silently ignored.

=item C<remove>

Array of C<string>s. These URLs will be removed from the See Also field.
You must specify the full URL that you want removed. However, matching
is done case-insensitively, so you don't have to specify the URL in
exact case, if you don't want to.

If you specify a URL that is not in the See Also field of a particular bug,
it will just be silently ignored. Invaild URLs are currently silently ignored,
though this may change in some future version of Bugzilla.

=back

NOTE: If you specify the same URL in both C<add> and C<remove>, it will
be I<added>. (That is, C<add> overrides C<remove>.)

=item B<Returns>

C<changes>, a hash where the keys are numeric bug ids and the contents
are a hash with one key, C<see_also>. C<see_also> points to a hash, which
contains two keys, C<added> and C<removed>. These are arrays of strings,
representing the actual changes that were made to the bug.

Here's a diagram of what the return value looks like for updating
bug ids 1 and 2:

 {
   changes => {
       1 => {
           see_also => {
               added   => (an array of bug URLs),
               removed => (an array of bug URLs),
           }
       },
       2 => {
           see_also => {
               added   => (an array of bug URLs),
               removed => (an array of bug URLs),
           }
       }
   }
 }

This return value allows you to tell what this method actually did. It is in
this format to be compatible with the return value of a future C<Bug.update>
method.

=item B<Errors>

This method can throw all of the errors that L</get> throws, plus:

=over

=item 108 (Bug Edit Denied)

You did not have the necessary rights to edit the bug.

=item 112 (Invalid Bug URL)

One of the URLs you provided did not look like a valid bug URL.

=item 115 (See Also Edit Denied)

You did not have the necessary rights to edit the See Also field for
this bug.

=back

=item B<History>

=over

=item Added in Bugzilla B<3.4>.

=item Before Bugzilla B<3.6>, error 115 had a generic error code of 32000.

=back

=back


=back