burst.c
23.5 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
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 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, see <http://www.gnu.org/licenses/>. */
/* MH burst command */
#include <mh.h>
#define obstack_chunk_alloc malloc
#define obstack_chunk_free free
#include <obstack.h>
static char doc[] = N_("GNU MH burst")"\v"
N_("Options marked with `*' are not yet implemented.\n\
Use -help to obtain the list of traditional MH options.");
static char args_doc[] = N_("[MSGLIST]");
/* GNU options */
static struct argp_option options[] = {
{"folder", ARG_FOLDER, N_("FOLDER"), 0,
N_("specify folder to operate upon")},
{"inplace", ARG_INPLACE, N_("BOOL"), OPTION_ARG_OPTIONAL,
N_("replace the source message with the table of contents, insert extracted messages after it") },
{"noinplace", ARG_NOINPLACE, 0, OPTION_HIDDEN, ""},
{"quiet", ARG_QUIET, N_("BOOL"), OPTION_ARG_OPTIONAL,
N_("be quiet about the messages that are not in digest format") },
{"noquiet", ARG_NOQUIET, 0, OPTION_HIDDEN, ""},
{"verbose", ARG_VERBOSE, N_("BOOL"), OPTION_ARG_OPTIONAL,
N_("verbosely list the actions taken") },
{"noverbose", ARG_NOVERBOSE, 0, OPTION_HIDDEN, ""},
{"recursive", ARG_RECURSIVE, N_("BOOL"), OPTION_ARG_OPTIONAL,
N_("recursively expand MIME messages") },
{"norecursive", ARG_NORECURSIVE, 0, OPTION_HIDDEN, ""},
{"length", ARG_LENGTH, N_("NUMBER"), 0,
N_("set minimal length of digest encapsulation boundary (default 1)") },
{ NULL }
};
/* Traditional MH options */
struct mh_option mh_option[] = {
{ "inplace", MH_OPT_BOOL },
{ "quiet", MH_OPT_BOOL },
{ "verbose", MH_OPT_BOOL },
{ NULL }
};
/* Command line switches */
int inplace;
int quiet;
int verbose;
int recursive;
int eb_min_length = 1; /* Minimal length of encapsulation boundary */
#define VERBOSE(c) do { if (verbose) { printf c; putchar ('\n'); } } while (0)
static error_t
opt_handler (int key, char *arg, struct argp_state *state)
{
switch (key)
{
case ARG_FOLDER:
mh_set_current_folder (arg);
break;
case ARG_INPLACE:
inplace = is_true (arg);
break;
case ARG_NOINPLACE:
inplace = 0;
break;
case ARG_LENGTH:
eb_min_length = strtoul (arg, NULL, 0);
if (eb_min_length == 0)
eb_min_length = 1;
break;
case ARG_VERBOSE:
verbose = is_true (arg);
break;
case ARG_NOVERBOSE:
verbose = 0;
break;
case ARG_RECURSIVE:
recursive = is_true (arg);
break;
case ARG_NORECURSIVE:
recursive = 0;
break;
case ARG_QUIET:
quiet = is_true (arg);
break;
case ARG_NOQUIET:
quiet = 0;
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
/* General-purpose data structures */
struct burst_map
{
int mime; /* Is mime? */
size_t msgno; /* Number of the original message */
/* Following numbers refer to tmpbox */
size_t first; /* Number of the first bursted message */
size_t count; /* Number of bursted messages */
};
/* Global data */
struct burst_map map; /* Currently built map */
struct burst_map *burst_map; /* Finished burst map */
size_t burst_count; /* Number of items in burst_map */
mu_mailbox_t tmpbox; /* Temporary mailbox */
struct obstack stk; /* Stack for building burst_map, etc. */
static int burst_or_copy (mu_message_t msg, int recursive, int copy);
/* MIME messages */
int
burst_mime (mu_message_t msg)
{
size_t i, nparts;
mu_message_get_num_parts (msg, &nparts);
for (i = 1; i <= nparts; i++)
{
mu_message_t mpart;
if (mu_message_get_part (msg, i, &mpart) == 0)
{
if (!map.first)
mu_mailbox_uidnext (tmpbox, &map.first);
burst_or_copy (mpart, recursive, 1);
}
}
return 0;
}
/* Digest messages */
/* Bursting FSA states accoring to RFC 934:
S1 :: "-" S3
| CRLF {CRLF} S1
| c {c} S2
S2 :: CRLF {CRLF} S1
| c {c} S2
S3 :: " " S2
| c S4 ;; the bursting agent should consider the current
;; message ended.
S4 :: CRLF S5
| c S4
S5 :: CRLF S5
| c {c} S2 ;; The bursting agent should consider a new
;; message started
*/
#define S1 1
#define S2 2
#define S3 3
#define S4 4
#define S5 5
/* Negative state means no write */
int transtab[5][256] = {
/* S1 */ { S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S1, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, -S3, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2 },
/* S2 */ { S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S1, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2 },
/* S3 */ { -S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S2, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4 },
/* S4 */ { -S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S5, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4,
-S4, -S4, -S4, -S4, -S4, -S4, -S4, -S4 },
/* S5 */ { S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, -S5, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2,
S2, S2, S2, S2, S2, S2, S2, S2 }
};
#define F_FIRST 0x01 /* First part of the message (no EB seen so far) */
#define F_ENCAPS 0x02 /* Within encapsulated part */
struct burst_stream
{
mu_stream_t stream; /* Output stream */
int flags; /* See F_ flags above */
size_t msgno; /* Number of the current message */
size_t partno; /* Number of the part within the message */
};
static inline void
finish_stream (struct burst_stream *bs)
{
if (bs->stream)
{
mu_message_t msg;
mu_stream_seek (bs->stream, 0, SEEK_SET, NULL);
msg = mh_stream_to_message (bs->stream);
if (!map.first)
mu_mailbox_uidnext (tmpbox, &map.first);
burst_or_copy (msg, recursive, 1);
mu_message_destroy (&msg, mu_message_get_owner (msg));
bs->stream = 0;
bs->partno++;
bs->flags &= ~F_FIRST;
}
}
static inline void
flush_stream (struct burst_stream *bs, char *buf, size_t size)
{
int rc;
if (size == 0)
return;
if (!bs->stream)
{
if ((rc = mu_temp_file_stream_create (&bs->stream, NULL, 0)))
{
mu_error (_("Cannot open temporary file: %s"),
mu_strerror (rc));
exit (1);
}
mu_stream_printf (bs->stream, "X-Burst-Part: %lu %lu %02x\n",
(unsigned long) bs->msgno,
(unsigned long) bs->partno, bs->flags);
if (!bs->flags)
mu_stream_write (bs->stream, "\n", 1, NULL);
if (verbose && !inplace)
{
size_t nextuid;
mu_mailbox_uidnext (tmpbox, &nextuid);
printf (_("message %lu of digest %lu becomes message %lu\n"),
(unsigned long) bs->partno,
(unsigned long) bs->msgno,
(unsigned long) nextuid);
}
}
rc = mu_stream_write (bs->stream, buf, size, NULL);
if (rc)
{
mu_error (_("error writing temporary stream: %s"),
mu_strerror (rc));
exit (1); /* FIXME: better error handling please */
}
}
/* Burst an RFC 934 digest. Return 0 if OK, 1 if the message is not
a valid digest.
FIXME: On errors, cleanup and return -1.
*/
int
burst_digest (mu_message_t msg)
{
mu_stream_t is;
unsigned char c;
size_t n;
int state = S1;
int eb_length = 0;
struct burst_stream bs;
int result = 0;
bs.stream = NULL;
bs.flags = F_FIRST;
bs.partno = 1;
mh_message_number (msg, &bs.msgno);
mu_message_get_streamref (msg, &is);
while (mu_stream_read (is, &c, 1, &n) == 0 && n == 1)
{
int newstate = transtab[state - 1][c];
int silent = 0;
if (newstate < 0)
{
newstate = -newstate;
silent = 1;
}
if (state == S1)
{
/* GNU extension: check if we have seen enough dashes to
constitute a valid encapsulation boundary. */
if (newstate == S3)
{
eb_length++;
if (eb_length < eb_min_length)
continue; /* Ignore state change */
if (eb_min_length > 1)
{
newstate = S4;
finish_stream (&bs);
bs.flags ^= F_ENCAPS;
}
}
else
for (; eb_length; eb_length--)
flush_stream (&bs, "-", 1);
eb_length = 0;
}
else if (state == S5 && newstate == S2)
{
/* As the automaton traverses from state S5 to S2, the
bursting agent should consider a new message started
and output the first character. */
finish_stream (&bs);
}
else if (state == S3 && newstate == S4)
{
/* As the automaton traverses from state S3 to S4, the
bursting agent should consider the current message ended. */
finish_stream (&bs);
bs.flags ^= F_ENCAPS;
}
state = newstate;
if (!silent)
flush_stream (&bs, (char*)&c, 1);
}
mu_stream_destroy (&is);
if (bs.flags == F_FIRST)
{
mu_stream_destroy (&bs.stream);
result = 1;
}
else if (bs.stream)
{
mu_off_t size = 0;
mu_stream_size (bs.stream, &size);
if (size)
finish_stream (&bs);
else
mu_stream_destroy (&bs.stream);
}
return result;
}
int
burst_or_copy (mu_message_t msg, int recursive, int copy)
{
if (recursive)
{
int mime = 0;
mu_message_is_multipart (msg, &mime);
if (mime)
{
if (!map.first)
map.mime = 1;
return burst_mime (msg);
}
else if (burst_digest (msg) == 0)
return 0;
}
if (copy)
{
int rc;
if (map.mime)
{
mu_header_t hdr;
char *value = NULL;
mu_message_get_header (msg, &hdr);
if (mu_header_aget_value (hdr, MU_HEADER_CONTENT_TYPE, &value) == 0
&& memcmp (value, "message/rfc822", 14) == 0)
{
mu_stream_t str;
mu_body_t body;
mu_message_get_body (msg, &body);
mu_body_get_streamref (body, &str);
msg = mh_stream_to_message (str);
}
free (value);
}
/* FIXME:
if (verbose && !inplace)
printf(_("message %lu of digest %lu becomes message %s"),
(unsigned long) (j+1),
(unsigned long) burst_map[i].msgno, to));
*/
rc = mu_mailbox_append_message (tmpbox, msg);
if (rc)
{
mu_error (_("cannot append message: %s"), mu_strerror (rc));
exit (1);
}
map.count++;
return 0;
}
return 1;
}
int
burst (size_t num, mu_message_t msg, void *data)
{
memset (&map, 0, sizeof (map));
mh_message_number (msg, &map.msgno);
if (burst_or_copy (msg, 1, 0) == 0)
{
VERBOSE((ngettext ("%s message exploded from digest %s",
"%s messages exploded from digest %s",
(unsigned long) map.count),
mu_umaxtostr (0, map.count),
mu_umaxtostr (1, num)));
if (inplace)
{
obstack_grow (&stk, &map, sizeof map);
burst_count++;
}
}
else if (!quiet)
mu_error (_("message %s not in digest format"), mu_umaxtostr (0, num));
return 0;
}
/* Inplace handling */
struct rename_env
{
size_t lastuid;
size_t idx;
};
static int
_rename (size_t msgno, void *data)
{
struct rename_env *rp = data;
if (msgno == burst_map[rp->idx].msgno)
{
rp->lastuid -= burst_map[rp->idx].count;
burst_map[rp->idx].msgno = rp->lastuid;
rp->idx--;
}
if (msgno != rp->lastuid)
{
const char *from;
const char *to;
from = mu_umaxtostr (0, msgno);
to = mu_umaxtostr (1, rp->lastuid);
--rp->lastuid;
VERBOSE((_("message %s becomes message %s"), from, to));
if (rename (from, to))
{
mu_error (_("error renaming %s to %s: %s"),
from, to, mu_strerror (errno));
exit (1);
}
}
return 0;
}
void
burst_rename (mu_msgset_t ms, size_t lastuid)
{
struct rename_env renv;
VERBOSE ((_("Renaming messages")));
renv.lastuid = lastuid;
renv.idx = burst_count - 1;
mu_msgset_foreach_dir_msguid (ms, 1, _rename, &renv);
}
void
msg_copy (size_t num, const char *file)
{
mu_message_t msg;
mu_attribute_t attr = NULL;
mu_stream_t istream, ostream;
int rc;
if ((rc = mu_file_stream_create (&ostream,
file,
MU_STREAM_WRITE|MU_STREAM_CREAT)))
{
mu_error (_("Cannot open output file `%s': %s"),
file, mu_strerror (rc));
exit (1);
}
mu_mailbox_get_message (tmpbox, num, &msg);
mu_message_get_streamref (msg, &istream);
rc = mu_stream_copy (ostream, istream, 0, NULL);
if (rc)
{
mu_error (_("copy stream error: %s"), mu_strerror (rc));
exit (1);
}
mu_stream_destroy (&istream);
mu_stream_close (ostream);
mu_stream_destroy (&ostream);
/* Mark message as deleted */
mu_message_get_attribute (msg, &attr);
mu_attribute_set_deleted (attr);
}
void
finalize_inplace (size_t lastuid)
{
size_t i;
VERBOSE ((_("Moving bursted out messages in place")));
for (i = 0; i < burst_count; i++)
{
size_t j;
/* FIXME: toc handling */
for (j = 0; j < burst_map[i].count; j++)
{
const char *to = mu_umaxtostr (0, burst_map[i].msgno + 1 + j);
VERBOSE((_("message %s of digest %s becomes message %s"),
mu_umaxtostr (1, j + 1),
mu_umaxtostr (2, burst_map[i].msgno), to));
msg_copy (burst_map[i].first + j, to);
}
}
}
int
main (int argc, char **argv)
{
int index, rc;
mu_mailbox_t mbox;
mu_msgset_t msgset;
const char *tempfolder = mh_global_profile_get ("Temp-Folder", ".temp");
/* Native Language Support */
MU_APP_INIT_NLS ();
mh_argp_init ();
mh_argp_parse (&argc, &argv, 0, options, mh_option, args_doc, doc,
opt_handler, NULL, &index);
argc -= index;
argv += index;
VERBOSE ((_("Opening folder `%s'"), mh_current_folder ()));
mbox = mh_open_folder (mh_current_folder (), MU_STREAM_RDWR);
mh_msgset_parse (&msgset, mbox, argc, argv, "cur");
if (inplace)
{
size_t i, count;
VERBOSE ((_("Opening temporary folder `%s'"), tempfolder));
tmpbox = mh_open_folder (tempfolder, MU_STREAM_RDWR|MU_STREAM_CREAT);
VERBOSE ((_("Cleaning up temporary folder")));
mu_mailbox_messages_count (tmpbox, &count);
for (i = 1; i <= count; i++)
{
mu_attribute_t attr = NULL;
mu_message_t msg = NULL;
mu_mailbox_get_message (tmpbox, i, &msg);
mu_message_get_attribute (msg, &attr);
mu_attribute_set_deleted (attr);
}
mu_mailbox_expunge (tmpbox);
obstack_init (&stk);
}
else
tmpbox = mbox;
rc = mu_msgset_foreach_message (msgset, burst, NULL);
if (rc)
return rc;
if (inplace && burst_count)
{
mu_url_t dst_url = NULL;
size_t i, next_uid, last_uid;
mu_msgset_t ms;
size_t count;
const char *dir;
burst_map = obstack_finish (&stk);
mu_mailbox_uidnext (mbox, &next_uid);
for (i = 0, last_uid = next_uid-1; i < burst_count; i++)
last_uid += burst_map[i].count;
VERBOSE ((_("Estimated last UID: %s"), mu_umaxtostr (0, last_uid)));
rc = mu_msgset_create (&ms, mbox, MU_MSGSET_NUM);
if (rc)
{
mu_diag_funcall (MU_DIAG_ERROR, "mu_msgset_create", NULL, rc);
exit (1);
}
mu_mailbox_messages_count (mbox, &count);
mu_msgset_add_range (ms, burst_map[0].msgno, count, MU_MSGSET_NUM);
mu_mailbox_get_url (mbox, &dst_url);
mu_url_sget_path (dst_url, &dir);
VERBOSE ((_("changing to `%s'"), dir));
if (chdir (dir))
{
mu_error (_("cannot change to `%s': %s"), dir, mu_strerror (errno));
exit (1);
}
mu_mailbox_close (mbox);
burst_rename (ms, last_uid);
mu_msgset_free (ms);
finalize_inplace (last_uid);
VERBOSE ((_("Expunging temporary folder")));
mu_mailbox_expunge (tmpbox);
mu_mailbox_close (tmpbox);
mu_mailbox_destroy (&tmpbox);
}
else
mu_mailbox_close (mbox);
mu_mailbox_destroy (&mbox);
VERBOSE ((_("Finished bursting")));
return rc;
}