fetch.c
38.7 KB
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
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2001, 2005, 2006, 2007,
2008 Free Software Foundation, Inc.
GNU Mailutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Mailutils is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Mailutils; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301 USA */
#include "imap4d.h"
#include <ctype.h>
#include <mailutils/argcv.h>
/* Taken from RFC2060
fetch ::= "FETCH" SPACE set SPACE ("ALL" / "FULL" /
"FAST" / fetch_att / "(" 1#fetch_att ")")
fetch_att ::= "ENVELOPE" / "FLAGS" / "INTERNALDATE" /
"RFC822" [".HEADER" / ".SIZE" / ".TEXT"] /
"BODY" ["STRUCTURE"] / "UID" /
"BODY" [".PEEK"] section
["<" number "." nz_number ">"]
*/
struct fetch_runtime_closure
{
int eltno;
size_t msgno;
mu_message_t msg;
char *err_text;
};
struct fetch_function_closure;
typedef int (*fetch_function_t) (struct fetch_function_closure *,
struct fetch_runtime_closure *);
struct fetch_function_closure
{
fetch_function_t fun; /* Handler function */
const char *name; /* Response tag */
size_t *section_part; /* Section-part */
size_t nset; /* Number of elements in section_part */
int peek;
int not; /* Negate header set */
mu_list_t headers; /* Headers */
size_t start; /* Substring start */
size_t size; /* Substring length */
};
static int
fetch_send_address (const char *addr)
{
mu_address_t address;
size_t i, count = 0;
/* Short circuit. */
if (addr == NULL || *addr == '\0')
{
util_send ("NIL");
return RESP_OK;
}
mu_address_create (&address, addr);
mu_address_get_count (address, &count);
/* We failed: can't parse. */
if (count == 0)
{
util_send ("NIL");
return RESP_OK;
}
util_send ("(");
for (i = 1; i <= count; i++)
{
const char *str;
int is_group = 0;
util_send ("(");
mu_address_sget_personal (address, i, &str);
util_send_qstring (str);
util_send (" ");
mu_address_sget_route (address, i, &str);
util_send_qstring (str);
util_send (" ");
mu_address_is_group (address, i, &is_group);
str = NULL;
if (is_group)
mu_address_sget_personal (address, i, &str);
else
mu_address_sget_local_part (address, i, &str);
util_send_qstring (str);
util_send (" ");
mu_address_sget_domain (address, i, &str);
util_send_qstring (str);
util_send (")");
}
util_send (")");
return RESP_OK;
}
static void
fetch_send_header_value (mu_header_t header, const char *name,
const char *defval, int space)
{
char *buffer;
if (space)
util_send (" ");
if (mu_header_aget_value (header, name, &buffer) == 0)
{
util_send_qstring (buffer);
free (buffer);
}
else if (defval)
util_send_qstring (defval);
else
util_send ("NIL");
}
static void
fetch_send_header_address (mu_header_t header, const char *name,
const char *defval, int space)
{
char *buffer;
if (space)
util_send (" ");
if (mu_header_aget_value (header, name, &buffer) == 0)
{
fetch_send_address (buffer);
free (buffer);
}
else
fetch_send_address (defval);
}
/* Send parameter list for the bodystructure. */
static void
send_parameter_list (const char *buffer)
{
int argc = 0;
char **argv;
if (!buffer)
{
util_send ("NIL");
return;
}
mu_argcv_get (buffer, " \t\r\n;=", NULL, &argc, &argv);
if (argc == 0)
util_send ("NIL");
else
{
char *p;
util_send ("(");
p = argv[0];
util_send_qstring (p);
if (argc > 1)
{
int i, space = 0;
char *lvalue = NULL;
util_send ("(");
for (i = 1; i < argc; i++)
{
if (lvalue)
{
if (space)
util_send (" ");
util_send_qstring (lvalue);
lvalue = NULL;
space = 1;
}
switch (argv[i][0])
{
case ';':
continue;
case '=':
if (++i < argc)
{
char *p = argv[i];
util_send (" ");
util_send_qstring (p);
}
break;
default:
lvalue = argv[i];
}
}
if (lvalue)
{
if (space)
util_send (" ");
util_send_qstring (lvalue);
}
util_send (")");
}
else
util_send (" NIL");
util_send (")");
}
mu_argcv_free (argc, argv);
}
static void
fetch_send_header_list (mu_header_t header, const char *name,
const char *defval, int space)
{
char *buffer;
if (space)
util_send (" ");
if (mu_header_aget_value (header, name, &buffer) == 0)
{
send_parameter_list (buffer);
free (buffer);
}
else if (defval)
send_parameter_list (defval);
else
util_send ("NIL");
}
/* ENVELOPE:
The envelope structure of the message. This is computed by the server by
parsing the [RFC-822] header into the component parts, defaulting various
fields as necessary. The fields are presented in the order:
Date, Subject, From, Sender, Reply-To, To, Cc, Bcc, In-Reply-To, Message-ID.
Any field of an envelope or address structure that is not applicable is
presented as NIL. Note that the server MUST default the reply-to and sender
fields from the from field. The date, subject, in-reply-to, and message-id
fields are strings. The from, sender, reply-to, to, cc, and bcc fields
are parenthesized lists of address structures. */
static int
fetch_envelope0 (mu_message_t msg)
{
char *from = NULL;
mu_header_t header = NULL;
mu_message_get_header (msg, &header);
fetch_send_header_value (header, "Date", NULL, 0);
fetch_send_header_value (header, "Subject", NULL, 1);
/* From: */
mu_header_aget_value (header, "From", &from);
util_send (" ");
fetch_send_address (from);
fetch_send_header_address (header, "Sender", from, 1);
fetch_send_header_address (header, "Reply-to", from, 1);
fetch_send_header_address (header, "To", NULL, 1);
fetch_send_header_address (header, "Cc", NULL, 1);
fetch_send_header_address (header, "Bcc", NULL, 1);
fetch_send_header_value (header, "In-Reply-To", NULL, 1);
fetch_send_header_value (header, "Message-ID", NULL, 1);
free (from);
return RESP_OK;
}
/* The basic fields of a non-multipart body part are in the following order:
body type:
A string giving the content media type name as defined in [MIME-IMB].
body subtype:
A string giving the content subtype name as defined in [MIME-IMB].
body parameter parenthesized list:
A parenthesized list of attribute/value pairs [e.g. ("foo" "bar" "baz"
"rag") where "bar" is the value of "foo" and "rag" is the value of "baz"]
as defined in [MIME-IMB].
body id:
A string giving the content id as defined in [MIME-IMB].
body description:
A string giving the content description as defined in [MIME-IMB].
body encoding:
A string giving the content transfer encoding as defined in [MIME-IMB].
body size:
A number giving the size of the body in octets. Note that this size is the
size in its transfer encoding and not the resulting size after any decoding.
A body type of type TEXT contains, immediately after the basic fields, the
size of the body in text lines.
A body type of type MESSAGE and subtype RFC822 contains, immediately after
the basic fields, the envelope structure, body structure, and size in text
lines of the encapsulated message.
The extension data of a non-multipart body part are in the following order:
body MD5:
A string giving the body MD5 value as defined in [MD5].
body disposition:
A parenthesized list with the same content and function as the body
disposition for a multipart body part.
body language:\
A string or parenthesized list giving the body language value as defined
in [LANGUAGE-TAGS].
*/
static int
bodystructure (mu_message_t msg, int extension)
{
mu_header_t header = NULL;
char *buffer = NULL;
size_t blines = 0;
int message_rfc822 = 0;
int text_plain = 0;
mu_message_get_header (msg, &header);
if (mu_header_aget_value (header, MU_HEADER_CONTENT_TYPE, &buffer) == 0)
{
int argc = 0;
char **argv;
char *s, *p;
mu_argcv_get (buffer, " \t\r\n;=", NULL, &argc, &argv);
if (strcasecmp (argv[0], "MESSAGE/RFC822") == 0)
message_rfc822 = 1;
else if (strcasecmp (argv[0], "TEXT/PLAIN") == 0)
text_plain = 1;
s = strchr (argv[0], '/');
if (s)
*s++ = 0;
p = argv[0];
util_send_qstring (p);
util_send (" ");
util_send_qstring (s);
/* body parameter parenthesized list: Content-type attributes */
if (argc > 1 || text_plain)
{
int space = 0;
char *lvalue = NULL;
int have_charset = 0;
int i;
util_send (" (");
for (i = 1; i < argc; i++)
{
/* body parameter parenthesized list:
Content-type parameter list. */
if (lvalue)
{
if (space)
util_send (" ");
util_send_qstring (lvalue);
lvalue = NULL;
space = 1;
}
switch (argv[i][0])
{
case ';':
continue;
case '=':
if (++i < argc)
{
char *p = argv[i];
util_send (" ");
util_send_qstring (p);
}
break;
default:
lvalue = argv[i];
if (strcasecmp (lvalue, "charset") == 0)
have_charset = 1;
}
}
if (lvalue)
{
if (space)
util_send (" ");
util_send_qstring (lvalue);
}
if (!have_charset && text_plain)
{
if (space)
util_send (" ");
util_send ("\"CHARSET\" \"US-ASCII\"");
}
util_send (")");
}
else
util_send (" NIL");
mu_argcv_free (argc, argv);
free (buffer);
}
else
{
/* Default? If Content-Type is not present consider as text/plain. */
util_send ("\"TEXT\" \"PLAIN\" (\"CHARSET\" \"US-ASCII\")");
text_plain = 1;
}
/* body id: Content-ID. */
fetch_send_header_value (header, MU_HEADER_CONTENT_ID, NULL, 1);
/* body description: Content-Description. */
fetch_send_header_value (header, MU_HEADER_CONTENT_DESCRIPTION, NULL, 1);
/* body encoding: Content-Transfer-Encoding. */
fetch_send_header_value (header, MU_HEADER_CONTENT_TRANSFER_ENCODING,
"7BIT", 1);
/* body size RFC822 format. */
{
size_t size = 0;
mu_body_t body = NULL;
mu_message_get_body (msg, &body);
mu_body_size (body, &size);
mu_body_lines (body, &blines);
util_send (" %s", mu_umaxtostr (0, size + blines));
}
/* If the mime type was text. */
if (text_plain)
{
/* Add the line number of the body. */
util_send (" %s", mu_umaxtostr (0, blines));
}
else if (message_rfc822)
{
size_t lines = 0;
mu_message_t emsg = NULL;
mu_message_unencapsulate (msg, &emsg, NULL);
/* Add envelope structure of the encapsulated message. */
util_send (" (");
fetch_envelope0 (emsg);
util_send (")");
/* Add body structure of the encapsulated message. */
util_send ("(");
bodystructure (emsg, extension);
util_send (")");
/* Size in text lines of the encapsulated message. */
mu_message_lines (emsg, &lines);
util_send (" %s", mu_umaxtostr (0, lines));
mu_message_destroy (&emsg, NULL);
}
if (extension)
{
/* body MD5: Content-MD5. */
fetch_send_header_value (header, MU_HEADER_CONTENT_MD5, NULL, 1);
/* body disposition: Content-Disposition. */
fetch_send_header_list (header, MU_HEADER_CONTENT_DISPOSITION, NULL, 1);
/* body language: Content-Language. */
fetch_send_header_value (header, MU_HEADER_CONTENT_LANGUAGE, NULL, 1);
}
return RESP_OK;
}
/* The beef BODYSTRUCTURE.
A parenthesized list that describes the [MIME-IMB] body structure of a
message. Multiple parts are indicated by parenthesis nesting. Instead of
a body type as the first element of the parenthesized list there is a nested
body. The second element of the parenthesized list is the multipart
subtype (mixed, digest, parallel, alternative, etc.).
The extension data of a multipart body part are in the following order:
body parameter parenthesized list:
A parenthesized list of attribute/value pairs [e.g. ("foo" "bar" "baz"
"rag") where "bar" is the value of "foo" and "rag" is the value of
"baz"] as defined in [MIME-IMB].
body disposition:
A parenthesized list, consisting of a disposition type string followed by a
parenthesized list of disposition attribute/value pairs. The disposition
type and attribute names will be defined in a future standards-track
revision to [DISPOSITION].
body language:
A string or parenthesized list giving the body language value as defined
in [LANGUAGE-TAGS]. */
static int
fetch_bodystructure0 (mu_message_t message, int extension)
{
size_t nparts = 1;
size_t i;
int is_multipart = 0;
mu_message_is_multipart (message, &is_multipart);
if (is_multipart)
{
char *buffer = NULL;
mu_header_t header = NULL;
mu_message_get_num_parts (message, &nparts);
/* Get all the sub messages. */
for (i = 1; i <= nparts; i++)
{
mu_message_t msg = NULL;
mu_message_get_part (message, i, &msg);
util_send ("(");
fetch_bodystructure0 (msg, extension);
util_send (")");
} /* for () */
mu_message_get_header (message, &header);
/* The subtype. */
if (mu_header_aget_value (header, MU_HEADER_CONTENT_TYPE, &buffer) == 0)
{
int argc = 0;
char **argv;
char *s;
mu_argcv_get (buffer, " \t\r\n;=", NULL, &argc, &argv);
s = strchr (argv[0], '/');
if (s)
s++;
util_send (" ");
util_send_qstring (s);
/* The extension data for multipart. */
if (extension)
{
int space = 0;
char *lvalue = NULL;
util_send (" (");
for (i = 1; i < argc; i++)
{
/* body parameter parenthesized list:
Content-type parameter list. */
if (lvalue)
{
if (space)
util_send (" ");
util_send_qstring (lvalue);
lvalue = NULL;
space = 1;
}
switch (argv[i][0])
{
case ';':
continue;
case '=':
if (++i < argc)
{
char *p = argv[i];
util_send (" ");
util_send_qstring (p);
}
break;
default:
lvalue = argv[i];
}
}
if (lvalue)
{
if (space)
util_send (" ");
util_send_qstring (lvalue);
}
util_send (")");
}
else
util_send (" NIL");
mu_argcv_free (argc, argv);
free (buffer);
}
else
/* No content-type header */
util_send (" NIL");
/* body disposition: Content-Disposition. */
fetch_send_header_list (header, MU_HEADER_CONTENT_DISPOSITION,
NULL, 1);
/* body language: Content-Language. */
fetch_send_header_list (header, MU_HEADER_CONTENT_LANGUAGE,
NULL, 1);
}
else
bodystructure (message, extension);
return RESP_OK;
}
static void
set_seen (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
if (!ffc->peek)
{
mu_attribute_t attr = NULL;
mu_message_get_attribute (frt->msg, &attr);
if (!mu_attribute_is_read (attr))
{
util_send ("FLAGS (\\Seen) ");
mu_attribute_set_read (attr);
}
}
}
static mu_message_t
fetch_get_part (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
mu_message_t msg = frt->msg;
size_t i;
for (i = 0; i < ffc->nset; i++)
if (mu_message_get_part (msg, ffc->section_part[i], &msg))
return NULL;
return msg;
}
static void
fetch_send_section_part (struct fetch_function_closure *ffc,
const char *suffix, int close_bracket)
{
int i;
util_send ("BODY[");
for (i = 0; i < ffc->nset; i++)
{
if (i)
util_send (".");
util_send ("%lu", (unsigned long) ffc->section_part[i]);
}
if (suffix)
{
if (i)
util_send (".");
util_send ("%s", suffix);
}
if (close_bracket)
util_send ("]");
}
static int
fetch_io (mu_stream_t stream, size_t start, size_t size, size_t max)
{
mu_stream_t rfc = NULL;
size_t n = 0;
mu_off_t offset;
mu_filter_create (&rfc, stream, "rfc822", MU_FILTER_ENCODE, MU_STREAM_READ);
if (start == 0 && size == (size_t) -1)
{
char *buffer;
size_t bufsize;
for (bufsize = max; (buffer = malloc (bufsize)) == NULL; bufsize /= 2)
if (bufsize < 512)
imap4d_bye (ERR_NO_MEM);
offset = 0;
if (max)
{
util_send (" {%lu}\r\n", (unsigned long) max);
while (mu_stream_read (rfc, buffer, bufsize, offset,
&n) == 0 && n > 0)
{
util_send_bytes (buffer, n);
offset += n;
}
/* FIXME: Make sure exactly max bytes were sent */
free (buffer);
}
else
util_send (" \"\"");
}
else if (size + 2 < size) /* Check for integer overflow */
{
return RESP_BAD;
}
else
{
char *buffer, *p;
size_t total = 0;
offset = start;
p = buffer = malloc (size + 1);
if (!p)
imap4d_bye (ERR_NO_MEM);
while (total < size
&& mu_stream_read (rfc, p, size - total + 1, offset, &n) == 0
&& n > 0)
{
offset += n;
total += n;
p += n;
}
*p = 0;
util_send ("<%lu>", (unsigned long) start);
if (total)
{
util_send (" {%lu}\r\n", (unsigned long) total);
util_send_bytes (buffer, total);
}
else
util_send (" \"\"");
free (buffer);
}
return RESP_OK;
}
/* Runtime functions */
static int
_frt_uid (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
size_t uid = 0;
mu_message_get_uid (frt->msg, &uid);
util_send ("%s %s", ffc->name, mu_umaxtostr (0, uid));
return RESP_OK;
}
static int
_frt_envelope (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
util_send ("%s (", ffc->name);
fetch_envelope0 (frt->msg);
util_send (")");
return RESP_OK;
}
static int
_frt_flags (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
mu_attribute_t attr = NULL;
mu_message_get_attribute (frt->msg, &attr);
util_send ("%s (", ffc->name);
util_print_flags (attr);
util_send (")");
return 0;
}
/* INTERNALDATE The internal date of the message.
Format:
date_time ::= <"> date_day_fixed "-" date_month "-" date_year
SPACE time SPACE zone <">
date_day ::= 1*2digit
;; Day of month
date_day_fixed ::= (SPACE digit) / 2digit
;; Fixed-format version of date_day
date_month ::= "Jan" / "Feb" / "Mar" / "Apr" / "May" / "Jun" /
"Jul" / "Aug" / "Sep" / "Oct" / "Nov" / "Dec"
date_text ::= date_day "-" date_month "-" date_year
date_year ::= 4digit
time ::= 2digit ":" 2digit ":" 2digit
;; Hours minutes seconds
zone ::= ("+" / "-") 4digit
;; Signed four-digit value of hhmm representing
;; hours and minutes west of Greenwich (that is,
;; (the amount that the given time differs from
;; Universal Time). Subtracting the timezone
;; from the given time will give the UT form.
;; The Universal Time zone is "+0000". */
static int
_frt_internaldate (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
const char *date;
mu_envelope_t env = NULL;
struct tm tm, *tmp = NULL;
mu_timezone tz;
char datebuf[sizeof ("13-Jul-2002 00:00:00")];
mu_message_get_envelope (frt->msg, &env);
if (mu_envelope_sget_date (env, &date) == 0
&& mu_parse_ctime_date_time (&date, &tm, &tz) == 0)
tmp = &tm;
else
{
time_t t = time (NULL);
tmp = localtime (&t);
}
mu_strftime (datebuf, sizeof (datebuf), "%d-%b-%Y %H:%M:%S", tmp);
util_send ("%s", ffc->name);
util_send (" \"%s +0000\"", datebuf);
return 0;
}
static int
_frt_bodystructure (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
util_send ("%s (", ffc->name);
fetch_bodystructure0 (frt->msg, 1); /* 1 means with extension data. */
util_send (")");
return RESP_OK;
}
static int
_frt_bodystructure0 (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
util_send ("%s (", ffc->name);
fetch_bodystructure0 (frt->msg, 0);
util_send (")");
return RESP_OK;
}
/* BODY[] */
static int
_frt_body (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
mu_message_t msg;
mu_stream_t stream = NULL;
size_t size = 0, lines = 0;
set_seen (ffc, frt);
if (ffc->name)
util_send ("%s", ffc->name);
else
fetch_send_section_part (ffc, NULL, 1);
msg = fetch_get_part (ffc, frt);
if (!msg)
{
util_send (" \"\"");
return RESP_OK;
}
mu_message_get_stream (msg, &stream);
mu_message_size (msg, &size);
mu_message_lines (msg, &lines);
return fetch_io (stream, ffc->start, ffc->size, size + lines);
}
static int
_frt_body_text (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
mu_message_t msg;
mu_body_t body = NULL;
mu_stream_t stream = NULL;
size_t size = 0, lines = 0;
set_seen (ffc, frt);
if (ffc->name)
util_send ("%s", ffc->name);
else
fetch_send_section_part (ffc, "TEXT", 1);
msg = fetch_get_part (ffc, frt);
if (!msg)
{
util_send (" \"\"");
return RESP_OK;
}
mu_message_get_body (msg, &body);
mu_body_size (body, &size);
mu_body_lines (body, &lines);
mu_body_get_stream (body, &stream);
return fetch_io (stream, ffc->start, ffc->size, size + lines);
}
static int
_frt_size (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
size_t size = 0;
size_t lines = 0;
mu_message_size (frt->msg, &size);
mu_message_lines (frt->msg, &lines);
util_send ("%s %u", ffc->name, size + lines);
return RESP_OK;
}
static int
_frt_header0 (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt,
const char *suffix)
{
mu_message_t msg;
mu_header_t header = NULL;
mu_stream_t stream = NULL;
size_t size = 0, lines = 0;
set_seen (ffc, frt);
if (ffc->name)
util_send ("%s", ffc->name);
else
fetch_send_section_part (ffc, suffix, 1);
msg = fetch_get_part (ffc, frt);
if (!msg)
{
util_send (" \"\"");
return RESP_OK;
}
mu_message_get_header (msg, &header);
mu_header_size (header, &size);
mu_header_lines (header, &lines);
mu_header_get_stream (header, &stream);
return fetch_io (stream, ffc->start, ffc->size, size + lines);
}
static int
_frt_header (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
return _frt_header0 (ffc, frt, "HEADER");
}
static int
_frt_mime (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
return _frt_header0 (ffc, frt, "MIME");
}
static int
_send_header_name (void *item, void *data)
{
int *pf = data;
if (*pf)
util_send (" ");
else
*pf = 1;
util_send ("%s", (char*) item);
return 0;
}
static int
count_nl (const char *str)
{
int n = 0;
for (;(str = strchr (str, '\n')); str++)
n++;
return n;
}
static int
_frt_header_fields (struct fetch_function_closure *ffc,
struct fetch_runtime_closure *frt)
{
int status;
mu_message_t msg;
mu_off_t size = 0;
size_t lines = 0;
mu_stream_t stream;
mu_header_t header;
mu_iterator_t itr;
set_seen (ffc, frt);
fetch_send_section_part (ffc, "HEADER.FIELDS", 0);
if (ffc->not)
util_send (".NOT");
util_send (" (");
status = 0;
mu_list_do (ffc->headers, _send_header_name, &status);
util_send (")]");
msg = fetch_get_part (ffc, frt);
if (!msg)
{
util_send (" \"\"");
return RESP_OK;
}
/* Collect headers: */
if (mu_message_get_header (msg, &header)
|| mu_header_get_iterator (header, &itr))
{
util_send (" \"\"");
return RESP_OK;
}
status = mu_memory_stream_create (&stream, NULL, MU_STREAM_NO_CHECK);
if (status != 0)
imap4d_bye (ERR_NO_MEM);
for (mu_iterator_first (itr);
!mu_iterator_is_done (itr); mu_iterator_next (itr))
{
const char *hf;
char *hv;
const char *item;
mu_iterator_current_kv (itr, (const void **)&hf, (void **)&hv);
status = mu_list_locate (ffc->headers, (void *)hf, (void**) &item) == 0;
if (ffc->not)
{
status = !status;
item = hf;
}
if (status)
{
mu_stream_sequential_printf (stream, "%s: %s\n", item, hv);
lines += 1 + count_nl (hv);
}
}
mu_stream_sequential_write (stream, "\n", 1);
lines++;
/* Output collected data */
mu_stream_size (stream, &size);
status = fetch_io (stream, ffc->start, ffc->size, size + lines);
mu_stream_destroy (&stream, NULL);
return status;
}
static void
ffc_init (struct fetch_function_closure *ffc)
{
memset(ffc, 0, sizeof *ffc);
ffc->start = 0;
ffc->size = (size_t) -1;
}
static void
_free_ffc (void *item)
{
struct fetch_function_closure *ffc = item;
mu_list_destroy (&ffc->headers);
free (ffc);
}
static int
_do_fetch (void *item, void *data)
{
struct fetch_function_closure *ffc = item;
struct fetch_runtime_closure *frt = data;
if (frt->eltno++)
util_send (" ");
return ffc->fun (ffc, frt);
}
struct parsebuf
{
imap4d_tokbuf_t tok;
int arg;
char *token;
int isuid;
mu_list_t fnlist;
jmp_buf errjmp;
char *err_text;
};
static void
parsebuf_exit (struct parsebuf *p, char *text)
{
p->err_text = text;
longjmp (p->errjmp, 1);
}
static char *
parsebuf_peek (struct parsebuf *p)
{
return imap4d_tokbuf_getarg (p->tok, p->arg);
}
static char *
parsebuf_next (struct parsebuf *p, int req)
{
p->token = imap4d_tokbuf_getarg (p->tok, p->arg++);
if (!p->token && req)
parsebuf_exit (p, "Too few arguments");
return p->token;
}
static void
append_ffc (struct parsebuf *p, struct fetch_function_closure *ffc)
{
struct fetch_function_closure *new_ffc = malloc (sizeof (*new_ffc));
if (!new_ffc)
imap4d_bye (ERR_NO_MEM);
*new_ffc = *ffc;
mu_list_append (p->fnlist, new_ffc);
}
static void
append_simple_function (struct parsebuf *p, const char *name,
fetch_function_t fun)
{
struct fetch_function_closure ffc;
ffc_init (&ffc);
ffc.fun = fun;
ffc.name = name;
append_ffc (p, &ffc);
}
static struct fetch_macro
{
char *macro;
char *exp;
} fetch_macro_tab[] = {
{ "ALL", "FLAGS INTERNALDATE RFC822.SIZE ENVELOPE" },
{ "FULL", "FLAGS INTERNALDATE RFC822.SIZE ENVELOPE BODY" },
{ "FAST", "FLAGS INTERNALDATE RFC822.SIZE" },
{ NULL }
};
static char *
find_macro (const char *name)
{
int i;
for (i = 0; fetch_macro_tab[i].macro; i++)
if (strcasecmp (fetch_macro_tab[i].macro, name) == 0)
return fetch_macro_tab[i].exp;
return NULL;
}
struct fetch_att_tab
{
char *name;
fetch_function_t fun;
};
static struct fetch_att_tab fetch_att_tab[] = {
{ "ENVELOPE", _frt_envelope },
{ "FLAGS", _frt_flags },
{ "INTERNALDATE", _frt_internaldate },
{ "UID", _frt_uid },
{ NULL }
};
static struct fetch_att_tab *
find_fetch_att_tab (char *name)
{
struct fetch_att_tab *p;
for (p = fetch_att_tab; p->name; p++)
if (strcasecmp (p->name, name) == 0)
return p;
return NULL;
}
/*
fetch-att = "ENVELOPE" / "FLAGS" / "INTERNALDATE" /
"RFC822" [".HEADER" / ".SIZE" / ".TEXT"] /
"BODY" ["STRUCTURE"] / "UID" /
"BODY" section ["<" number "." nz-number ">"] /
"BODY.PEEK" section ["<" number "." nz-number ">"]
*/
/* "RFC822" [".HEADER" / ".SIZE" / ".TEXT"] */
static void
parse_fetch_rfc822 (struct parsebuf *p)
{
struct fetch_function_closure ffc;
ffc_init (&ffc);
ffc.name = "RFC822";
parsebuf_next (p, 0);
if (p->token == NULL || p->token[0] == ')')
{
/* Equivalent to BODY[]. */
ffc.fun = _frt_body;
}
else if (p->token[0] == '.')
{
parsebuf_next (p, 1);
if (strcasecmp (p->token, "HEADER") == 0)
{
/* RFC822.HEADER
Equivalent to BODY[HEADER]. Note that this did not result in
\Seen being set, because RFC822.HEADER response data occurs as
a result of a FETCH of RFC822.HEADER. BODY[HEADER] response
data occurs as a result of a FETCH of BODY[HEADER] (which sets
\Seen) or BODY.PEEK[HEADER] (which does not set \Seen). */
ffc.name = "RFC822.HEADER";
ffc.fun = _frt_header;
ffc.peek = 1;
parsebuf_next (p, 0);
}
else if (strcasecmp (p->token, "SIZE") == 0)
{
/* A number expressing the [RFC-2822] size of the message. */
ffc.name = "RFC822.SIZE";
ffc.fun = _frt_size;
parsebuf_next (p, 0);
}
else if (strcasecmp (p->token, "TEXT") == 0)
{
/* RFC822.TEXT
Equivalent to BODY[TEXT]. */
ffc.name = "RFC822.TEXT";
ffc.fun = _frt_body_text;
parsebuf_next (p, 0);
}
else
parsebuf_exit (p, "Syntax error after RFC822.");
}
else
parsebuf_exit (p, "Syntax error after RFC822");
append_ffc (p, &ffc);
}
static int
_header_cmp (const void *a, const void *b)
{
return strcasecmp ((char*)a, (char*)b);
}
/*
header-fld-name = astring
header-list = "(" header-fld-name *(SP header-fld-name) ")"
*/
static void
parse_header_list (struct parsebuf *p, struct fetch_function_closure *ffc)
{
if (p->token[0] != '(')
parsebuf_exit (p, "Syntax error: expected (");
mu_list_create (&ffc->headers);
mu_list_set_comparator (ffc->headers, _header_cmp);
for (parsebuf_next (p, 1); p->token[0] != ')'; parsebuf_next (p, 1))
{
if (util_isdelim (p->token))
parsebuf_exit (p, "Syntax error: unexpected delimiter");
mu_list_append (ffc->headers, p->token);
}
parsebuf_next (p, 1);
}
/*
section-msgtext = "HEADER" / "HEADER.FIELDS" [".NOT"] SP header-list /
"TEXT"
; top-level or MESSAGE/RFC822 part
section-text = section-msgtext / "MIME"
; text other than actual body part (headers, etc.)
*/
static int
parse_section_text (struct parsebuf *p, struct fetch_function_closure *ffc,
int allow_mime)
{
if (strcasecmp (p->token, "HEADER") == 0)
{
/* "HEADER" / "HEADER.FIELDS" [".NOT"] SP header-list */
parsebuf_next (p, 1);
if (p->token[0] == '.')
{
parsebuf_next (p, 1);
if (strcasecmp (p->token, "FIELDS"))
parsebuf_exit (p, "Expected FIELDS");
ffc->fun = _frt_header_fields;
parsebuf_next (p, 1);
if (p->token[0] == '.')
{
parsebuf_next (p, 1);
if (strcasecmp (p->token, "NOT") == 0)
{
ffc->not = 1;
parsebuf_next (p, 1);
}
else
parsebuf_exit (p, "Expected NOT");
}
parse_header_list (p, ffc);
}
else
ffc->fun = _frt_header;
}
else if (strcasecmp (p->token, "TEXT") == 0)
{
parsebuf_next (p, 1);
ffc->fun = _frt_body_text;
}
else if (allow_mime && strcasecmp (p->token, "MIME") == 0)
{
parsebuf_next (p, 1);
ffc->fun = _frt_mime;
}
else
return 1;
return 0;
}
static size_t
parsebuf_get_number (struct parsebuf *p)
{
char *cp;
unsigned n = strtoul (p->token, &cp, 10);
if (*cp)
parsebuf_exit (p, "Syntax error: expected number");
return n;
}
/*
section-part = nz-number *("." nz-number)
; body part nesting
*/
static void
parse_section_part (struct parsebuf *p, struct fetch_function_closure *ffc)
{
size_t *parts;
size_t nmax = 0;
size_t ncur = 0;
for (;;)
{
char *cp;
size_t n = parsebuf_get_number (p);
if (ncur == nmax)
{
if (nmax == 0)
{
nmax = 16;
parts = calloc (nmax, sizeof (parts[0]));
}
else
{
nmax *= 2;
parts = realloc (parts, nmax * sizeof (parts[0]));
}
if (!parts)
imap4d_bye (ERR_NO_MEM);
}
parts[ncur++] = n;
parsebuf_next (p, 1);
if (p->token[0] == '.'
&& (cp = parsebuf_peek (p)) && isascii (*cp) && isdigit (cp[0]))
parsebuf_next (p, 1);
else
break;
}
ffc->section_part = parts;
ffc->nset = ncur;
}
/*
section = "[" [section-spec] "]"
section-spec = section-msgtext / (section-part ["." section-text])
*/
static int
parse_section (struct parsebuf *p, struct fetch_function_closure *ffc)
{
if (p->token[0] != '[')
return 1;
ffc_init (ffc);
ffc->name = NULL;
ffc->fun = _frt_body;
parsebuf_next (p, 1);
if (parse_section_text (p, ffc, 0))
{
if (p->token[0] == ']')
/* OK */;
else if (isascii (p->token[0]) && isdigit (p->token[0]))
{
parse_section_part (p, ffc);
if (p->token[0] == '.')
{
parsebuf_next (p, 1);
parse_section_text (p, ffc, 1);
}
}
else
parsebuf_exit (p, "Syntax error");
}
if (p->token[0] != ']')
parsebuf_exit (p, "Syntax error: missing ]");
parsebuf_next (p, 0);
return 0;
}
static void
parse_substring (struct parsebuf *p, struct fetch_function_closure *ffc)
{
if (p->token && p->token[0] == '<')
{
parsebuf_next (p, 1);
ffc->start = parsebuf_get_number (p);
parsebuf_next (p, 1);
if (p->token[0] != '.')
parsebuf_exit (p, "Syntax error: expected .");
parsebuf_next (p, 1);
ffc->size = parsebuf_get_number (p);
parsebuf_next (p, 1);
if (p->token[0] != '>')
parsebuf_exit (p, "Syntax error: expected >");
parsebuf_next (p, 0);
}
}
/* section ["<" number "." nz-number ">"] */
static int
parse_body_args (struct parsebuf *p, int peek)
{
struct fetch_function_closure ffc;
if (parse_section (p, &ffc) == 0)
{
parse_substring (p, &ffc);
ffc.peek = peek;
append_ffc (p, &ffc);
return 0;
}
return 1;
}
static void
parse_body_peek (struct parsebuf *p)
{
parsebuf_next (p, 1);
if (strcasecmp (p->token, "PEEK") == 0)
{
parsebuf_next (p, 1);
if (parse_body_args (p, 1))
parsebuf_exit (p, "Syntax error");
}
else
parsebuf_exit (p, "Syntax error: expected PEEK");
}
/* "BODY" ["STRUCTURE"] /
"BODY" section ["<" number "." nz-number ">"] /
"BODY.PEEK" section ["<" number "." nz-number ">"] */
static void
parse_fetch_body (struct parsebuf *p)
{
if (parsebuf_next (p, 0) == NULL || p->token[0] == ')')
append_simple_function (p, "BODY", _frt_bodystructure0);
else if (p->token[0] == '.')
parse_body_peek (p);
else if (strcasecmp (p->token, "STRUCTURE") == 0)
{
/* For compatibility with previous versions */
append_simple_function (p, "BODYSTRUCTURE", _frt_bodystructure);
parsebuf_next (p, 0);
}
else if (parse_body_args (p, 0))
parsebuf_exit (p, "Syntax error");
}
static int
parse_fetch_att (struct parsebuf *p)
{
struct fetch_att_tab *ent;
ent = find_fetch_att_tab (p->token);
if (ent)
{
if (!(ent->fun == _frt_uid && p->isuid))
append_simple_function (p, ent->name, ent->fun);
parsebuf_next (p, 0);
}
else if (strcasecmp (p->token, "RFC822") == 0)
parse_fetch_rfc822 (p);
else if (strcasecmp (p->token, "BODY") == 0)
parse_fetch_body (p);
else if (strcasecmp (p->token, "BODYSTRUCTURE") == 0)
{
append_simple_function (p, "BODYSTRUCTURE", _frt_bodystructure);
parsebuf_next (p, 0);
}
else
return 1;
return 0;
}
/* fetch-att *(SP fetch-att) */
static void
parse_fetch_att_list (struct parsebuf *p)
{
while (p->token && parse_fetch_att (p) == 0)
;
}
/* "ALL" / "FULL" / "FAST" / fetch-att / "(" */
static void
parse_macro (struct parsebuf *p)
{
char *exp;
parsebuf_next (p, 1);
if (p->token[0] == '(')
{
parsebuf_next (p, 1);
parse_fetch_att_list (p);
if (p->token[0] != ')')
parsebuf_exit (p, "Missing closing parenthesis");
}
else if ((exp = find_macro (p->token)))
{
imap4d_tokbuf_t save_tok = p->tok;
int save_arg = p->arg;
p->tok = imap4d_tokbuf_from_string (exp);
p->arg = 0;
parsebuf_next (p, 1);
parse_fetch_att_list (p);
imap4d_tokbuf_destroy (&p->tok);
p->arg = save_arg;
p->tok = save_tok;
if (parsebuf_peek (p))
parsebuf_exit (p, "Too many arguments");
}
else
{
parse_fetch_att (p);
if (p->token)
parsebuf_exit (p, "Too many arguments");
}
}
/* Where the real implementation is. It is here since UID command also
calls FETCH. */
int
imap4d_fetch0 (imap4d_tokbuf_t tok, int isuid, char **err_text)
{
int rc = RESP_OK;
char *msgset;
size_t *set = NULL;
int n = 0;
int i;
int status;
struct fetch_runtime_closure frc;
struct parsebuf pb;
if (imap4d_tokbuf_argc (tok) - (IMAP4_ARG_1 + isuid) < 2)
{
*err_text = "Invalid arguments";
return 1;
}
pb.tok = tok;
pb.arg = IMAP4_ARG_1 + isuid;
pb.isuid = isuid;
pb.err_text = "Syntax error";
mu_list_create (&pb.fnlist);
mu_list_set_destroy_item (pb.fnlist, _free_ffc);
if (setjmp (pb.errjmp))
{
*err_text = pb.err_text;
mu_list_destroy (&pb.fnlist);
return RESP_BAD;
}
msgset = parsebuf_next (&pb, 1);
/* Get the message numbers in set[]. */
status = util_msgset (msgset, &set, &n, isuid);
if (status != 0)
{
*err_text = "Bogus number set";
return RESP_BAD;
}
/* Compile the expression */
/* Server implementations MUST implicitly
include the UID message data item as part of any FETCH
response caused by a UID command, regardless of whether
a UID was specified as a message data item to the FETCH. */
if (isuid)
append_simple_function (&pb, "UID", _frt_uid);
parse_macro (&pb);
/* Prepare status code. It will be replaced if an error occurs in the
loop below */
frc.err_text = "Completed";
for (i = 0; i < n && rc == RESP_OK; i++)
{
frc.msgno = (isuid) ? uid_to_msgno (set[i]) : set[i];
if (frc.msgno && mu_mailbox_get_message (mbox, frc.msgno, &frc.msg) == 0)
{
util_send ("* %lu FETCH (", (unsigned long) frc.msgno);
frc.eltno = 0;
rc = mu_list_do (pb.fnlist, _do_fetch, &frc);
util_send (")\r\n");
}
}
mu_list_destroy (&pb.fnlist);
free (set);
return rc;
}
/*
6.4.5. FETCH Command
Arguments: message set
message data item names
Responses: untagged responses: FETCH
Result: OK - fetch completed
NO - fetch error: can't fetch that data
BAD - command unknown or arguments invalid
*/
/* The FETCH command retrieves data associated with a message in the
mailbox. The data items to be fetched can be either a single atom
or a parenthesized list. */
int
imap4d_fetch (struct imap4d_command *command, imap4d_tokbuf_t tok)
{
int rc;
char *err_text = "Completed";
rc = imap4d_fetch0 (tok, 0, &err_text);
return util_finish (command, rc, "%s", err_text);
}