summaryrefslogtreecommitdiff
path: root/libmu_scm/mu_message.c
blob: 76597ab1dc7f4d1acbfdf420d3dd20e79883433c (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
/* GNU mailutils - a suite of utilities for electronic mail
   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.

   This program 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 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#include "mu_scm.h"

long message_tag;

struct mu_message
{
  message_t msg;       /* Message itself */
  SCM mbox;            /* Mailbox it belongs to */
};

/* SMOB functions: */

static SCM
mu_scm_message_mark (SCM message_smob)
{
  struct mu_message *mum = (struct mu_message *) SCM_CDR (message_smob);
  return mum->mbox;
}

static scm_sizet
mu_scm_message_free (SCM message_smob)
{
  struct mu_message *mum = (struct mu_message *) SCM_CDR (message_smob);
  if (message_get_owner (mum->msg) == NULL)
    message_destroy (&mum->msg, NULL);
  free (mum);
  return sizeof (struct mu_message);
}

static char *
_get_envelope_sender (envelope_t env)
{
  address_t addr;
  char buffer[128];

  if (envelope_sender (env, buffer, sizeof (buffer), NULL)
      || address_create (&addr, buffer))
    return NULL;

  if (address_get_email (addr, 1, buffer, sizeof (buffer), NULL))
    {
      address_destroy (&addr);
      return NULL;
    }

  address_destroy (&addr);
  return strdup (buffer);
}

static int
mu_scm_message_print (SCM message_smob, SCM port, scm_print_state * pstate)
{
  struct mu_message *mum = (struct mu_message *) SCM_CDR (message_smob);
  envelope_t env = NULL;
  char buffer[128];
  const char *p;
  size_t m_size = 0, m_lines = 0;
  struct tm tm;
  mu_timezone tz;

  message_get_envelope (mum->msg, &env);

  scm_puts ("#<message ", port);

  if (message_smob == SCM_BOOL_F)
    {
      /* several mu_message.* functions may return #f */
      scm_puts ("#f", port);
    }
  else
    {
      p = _get_envelope_sender (env);
      scm_puts ("\"", port);
      if (p)
	{
	  scm_puts (p, port);
	  free ((void *) p);
	}
      else
	scm_puts ("UNKNOWN", port);
      
      envelope_date (env, buffer, sizeof (buffer), NULL);
      p = buffer;
      if (mu_parse_ctime_date_time (&p, &tm, &tz) == 0)
	strftime (buffer, sizeof (buffer), "%a %b %e %H:%M", &tm);
      else
	strcpy (buffer, "UNKNOWN");
      scm_puts ("\" \"", port);
      scm_puts (buffer, port);
      scm_puts ("\" ", port);
      
      message_size (mum->msg, &m_size);
      message_lines (mum->msg, &m_lines);
      
      snprintf (buffer, sizeof (buffer), "%3ld %-5ld", m_lines, m_size);
      scm_puts (buffer, port);
    }
  scm_puts (">", port);
  return 1;
}

/* Internal calls: */

SCM
mu_scm_message_create (SCM owner, message_t msg)
{
  struct mu_message *mum;

  mum = scm_must_malloc (sizeof (struct mu_message), "message");
  mum->msg = msg;
  mum->mbox = owner;
  SCM_RETURN_NEWSMOB (message_tag, mum);
}

void
mu_scm_message_add_owner (SCM MESG, SCM owner)
{
  struct mu_message *mum = (struct mu_message *) SCM_CDR (MESG);
  SCM cell;

  if (SCM_IMP (mum->mbox) && SCM_BOOLP (mum->mbox))
    {
      mum->mbox = owner;
      return;
    }
  
  SCM_NEWCELL (cell);
  SCM_SETCAR (cell, owner);
  if (SCM_NIMP (mum->mbox) && SCM_CONSP (mum->mbox))
    SCM_SETCDR (cell, mum->mbox);
  else
    {
      SCM scm;
      SCM_NEWCELL (scm);
      SCM_SETCAR (scm, mum->mbox);
      SCM_SETCDR (scm, SCM_EOL);
      SCM_SETCDR (cell, scm);
    }
  mum->mbox = cell;
}

const message_t
mu_scm_message_get (SCM MESG)
{
  struct mu_message *mum = (struct mu_message *) SCM_CDR (MESG);
  return mum->msg;
}

int
mu_scm_is_message (SCM scm)
{
  return SCM_NIMP (scm) && SCM_CAR (scm) == message_tag;
}

/* ************************************************************************* */
/* Guile primitives */

SCM_DEFINE (mu_message_create, "mu-message-create", 0, 0, 0,
	    (),
	    "Creates an empty message.")
#define FUNC_NAME s_mu_message_create
{
  message_t msg;
  message_create (&msg, NULL);
  return mu_scm_message_create (SCM_BOOL_F, msg);
}
#undef FUNC_NAME

/* FIXME: This changes envelope date */
SCM_DEFINE (mu_message_copy, "mu-message-copy", 1, 0, 0,
	    (SCM MESG),
	    "Creates the copy of the given message.\n")
#define FUNC_NAME s_mu_message_copy
{
  message_t msg, newmsg;
  stream_t in = NULL, out = NULL;
  char buffer[512];
  size_t off, n;
  
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);

  if (message_get_stream (msg, &in))
    return SCM_BOOL_F;
  
  if (message_create (&newmsg, NULL))
    return SCM_BOOL_F;
  
  if (message_get_stream (newmsg, &out))
    {
      message_destroy (&newmsg, NULL);
      return SCM_BOOL_F;
    }

  off = 0;
  while (stream_read (in, buffer, sizeof (buffer) - 1, off, &n) == 0
	 && n != 0)
    {
      int wr;
      
      stream_write (out, buffer, n, off, &wr);
      off += n;
      if (wr != n)
	{
	  message_destroy (&newmsg, NULL);
	  return SCM_BOOL_F;
	}
    }
  
  return mu_scm_message_create (SCM_BOOL_F, newmsg);
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_destroy, "mu-message-destroy", 1, 0, 0,
	    (SCM MESG),
	    "Destroys the message.")
#define FUNC_NAME s_mu_message_destroy
{
  struct mu_message *mum;
  
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  mum = (struct mu_message *) SCM_CDR (MESG);
  message_destroy (&mum->msg, message_get_owner (mum->msg));
  return SCM_UNSPECIFIED;
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_set_header, "mu-message-set-header", 3, 1, 0,
	    (SCM MESG, SCM HEADER, SCM VALUE, SCM REPLACE),
	    "Sets new VALUE to the header HEADER of the message MESG.\n"
	    "If the HEADER is already present in the message its value\n"
	    "is replaced with the suplied one iff the optional REPLACE is\n"
	    "#t. Otherwise new header is created and appended.")
#define FUNC_NAME s_mu_message_set_header
{
  message_t msg;
  header_t hdr;
  int replace = 0;
  
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  SCM_ASSERT (SCM_NIMP (HEADER) && SCM_STRINGP (HEADER),
	      HEADER, SCM_ARG2, FUNC_NAME);

  if (SCM_IMP (VALUE) && SCM_BOOLP (VALUE))
    return SCM_UNSPECIFIED;
  
  SCM_ASSERT (SCM_NIMP (VALUE) && SCM_STRINGP (VALUE),
	      VALUE, SCM_ARG2, FUNC_NAME);
  if (!SCM_UNBNDP (REPLACE))
    {
      replace = REPLACE == SCM_BOOL_T;
    }
  
  message_get_header (msg, &hdr);
  header_set_value (hdr, SCM_STRING_CHARS (HEADER), strdup (SCM_STRING_CHARS (VALUE)),
		    replace);
  return SCM_UNSPECIFIED;
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_get_size, "mu-message-get-size", 1, 0, 0,
	    (SCM MESG),
	    "Returns the size of the given message.")
#define FUNC_NAME s_mu_message_get_size
{
  message_t msg;
  size_t size;
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  message_size (msg, &size);
  return scm_makenum (size);
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_get_lines, "mu-message-get-lines", 1, 0, 0,
	    (SCM MESG),
	    "Returns number of lines in the given message.")
#define FUNC_NAME s_mu_message_get_lines
{
  message_t msg;
  size_t lines;
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  message_lines (msg, &lines);
  return scm_makenum (lines);
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_get_sender, "mu-message-get-sender", 1, 0, 0,
	    (SCM MESG),
	    "Returns the sender email address for the message MESG.")
#define FUNC_NAME s_mu_message_get_sender
{
  message_t msg;
  envelope_t env = NULL;
  SCM ret = SCM_BOOL_F;

  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  if (message_get_envelope (msg, &env) == 0)
    {
      char *p = _get_envelope_sender (env);
      ret = scm_makfrom0str (p);
      free (p);
    }
  return ret;
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_get_header, "mu-message-get-header", 2, 0, 0,
	    (SCM MESG, SCM HEADER),
	    "Returns the header value of the HEADER in the MESG.")
#define FUNC_NAME s_mu_message_get_header
{
  message_t msg;
  header_t hdr;
  char *value = NULL;
  char *header_string;
  SCM ret = SCM_BOOL_F;

  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  SCM_ASSERT (SCM_NIMP (HEADER) && SCM_STRINGP (HEADER),
	      HEADER, SCM_ARG2, FUNC_NAME);
  header_string = SCM_STRING_CHARS (HEADER);
  message_get_header (msg, &hdr);
  if (header_aget_value (hdr, header_string, &value) == 0)
    {
      ret = scm_makfrom0str (value);
      free (value);
    }
  return ret;
}
#undef FUNC_NAME

static int
string_sloppy_member (SCM lst, char *name)
{
  for(; SCM_CONSP (lst); lst = SCM_CDR(lst))
    {
      SCM car = SCM_CAR (lst);
      if ((SCM_NIMP (car) && SCM_STRINGP (car))
	  && strcasecmp (SCM_STRING_CHARS (car), name) == 0)
	return 1;
    }
  return 0;
}

SCM_DEFINE (mu_message_get_header_fields, "mu-message-get-header-fields", 1, 1, 0,
	    (SCM MESG, SCM HEADERS),
	    "Returns the list of headers in the MESG. If optional HEADERS is\n"
	    "specified it should be a list of header names to restrict return\n"
	    "value to.\n")
#define FUNC_NAME s_mu_message_get_header_fields
{
  size_t i, nfields = 0;
  message_t msg;
  header_t hdr = NULL;
  SCM scm_first = SCM_EOL, scm_last;
  SCM headers = SCM_EOL;
    
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  if (!SCM_UNBNDP (HEADERS))
    {
      SCM_ASSERT (SCM_NIMP (HEADERS) && SCM_CONSP (HEADERS),
		  HEADERS, SCM_ARG2, FUNC_NAME);
      headers = HEADERS;
    }

  message_get_header (msg, &hdr);
  header_get_field_count (hdr, &nfields);
  for (i = 1; i <= nfields; i++)
    {
      SCM new_cell, scm_name, scm_value;
      char *name, *value;
      
      header_aget_field_name (hdr, i, &name);
      if (headers != SCM_EOL && string_sloppy_member (headers, name) == 0)
	continue;
      header_aget_field_value (hdr, i, &value);

      scm_name = scm_makfrom0str (name);
      scm_value = scm_makfrom0str (value);

      SCM_NEWCELL(new_cell);
      SCM_SETCAR(new_cell, scm_cons(scm_name, scm_value));
      
      if (scm_first == SCM_EOL)
	{
	  scm_first = new_cell;
	  scm_last = scm_first;
	}
      else
	{
	  SCM_SETCDR(scm_last, new_cell);
	  scm_last = new_cell;
	}
    }
  if (scm_first != SCM_EOL)
    SCM_SETCDR(scm_last, SCM_EOL);
  return scm_first;
}
#undef FUNC_NAME
  
SCM_DEFINE (mu_message_set_header_fields, "mu-message-set-header-fields", 2, 1, 0,
	    (SCM MESG, SCM LIST, SCM REPLACE),
	    "Set the headers in the message MESG from LIST\n"
	    "LIST is a list of (cons HEADER VALUE)\n"
	    "Optional parameter REPLACE spceifies whether the new header\n"
	    "values should replace the headers already present in the\n"
	    "message.")
#define FUNC_NAME s_mu_message_set_header_fields
{
  message_t msg;
  header_t hdr;
  SCM list;
  int replace = 0;
  
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  SCM_ASSERT (((SCM_IMP (LIST) && SCM_EOL == LIST) ||
	       (SCM_NIMP (LIST) && SCM_CONSP (LIST))),
	      LIST, SCM_ARG2, FUNC_NAME);
  if (!SCM_UNBNDP (REPLACE))
    {
      SCM_ASSERT (SCM_IMP (REPLACE) && SCM_BOOLP (REPLACE),
		  REPLACE, SCM_ARG3, FUNC_NAME);
      replace = REPLACE == SCM_BOOL_T;
    }

  message_get_header (msg, &hdr);
  for (list = LIST; list != SCM_EOL; list = SCM_CDR (list))
    {
      SCM cell = SCM_CAR (list);
      SCM car, cdr;
      
      SCM_ASSERT(SCM_NIMP(cell) && SCM_CONSP(cell),
		 cell, SCM_ARGn, FUNC_NAME);
      car = SCM_CAR (cell);
      cdr = SCM_CDR (cell);
      SCM_ASSERT (SCM_NIMP (car) && SCM_STRINGP (car),
		  car, SCM_ARGn, FUNC_NAME);
      SCM_ASSERT (SCM_NIMP (cdr) && SCM_STRINGP (cdr),
		  cdr, SCM_ARGn, FUNC_NAME);
      header_set_value (hdr, SCM_STRING_CHARS (car), SCM_STRING_CHARS (cdr), replace);
    }
  return SCM_UNDEFINED;
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_delete, "mu-message-delete", 1, 1, 0,
	    (SCM MESG, SCM FLAG),
	    "Mark given message as deleted. Optional FLAG allows to toggle deleted mark\n"
	    "The message is deleted if it is #t and undeleted if it is #f")
#define FUNC_NAME s_mu_message_delete
{
  message_t msg;
  attribute_t attr;
  int delete = 1;
  
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  if (!SCM_UNBNDP (FLAG))
    {
      SCM_ASSERT (SCM_IMP (FLAG) && SCM_BOOLP (FLAG),
		  FLAG, SCM_ARG2, FUNC_NAME);
      delete = FLAG == SCM_BOOL_T;
    }
  message_get_attribute (msg, &attr);
  if (delete)
    attribute_set_deleted (attr);
  else
    attribute_unset_deleted (attr);
  return SCM_UNDEFINED;
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_get_flag, "mu-message-get-flag", 2, 0, 0,
	    (SCM MESG, SCM FLAG),
	    "Return value of the attribute FLAG.")
#define FUNC_NAME s_mu_message_get_flag
{
  message_t msg;
  attribute_t attr;
  int ret = 0;

  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  SCM_ASSERT (SCM_IMP (FLAG) && SCM_INUMP (FLAG), FLAG, SCM_ARG2, FUNC_NAME);

  message_get_attribute (msg, &attr);
  switch (SCM_INUM (FLAG))
    {
    case MU_ATTRIBUTE_ANSWERED:
      ret = attribute_is_answered (attr);
      break;
    case MU_ATTRIBUTE_FLAGGED:
      ret = attribute_is_flagged (attr);
      break;
    case MU_ATTRIBUTE_DELETED:
      ret = attribute_is_deleted (attr);
      break;
    case MU_ATTRIBUTE_DRAFT:
      ret = attribute_is_draft (attr);
      break;
    case MU_ATTRIBUTE_SEEN:
      ret = attribute_is_seen (attr);
      break;
    case MU_ATTRIBUTE_READ:
      ret = attribute_is_read (attr);
      break;
    case MU_ATTRIBUTE_MODIFIED:
      ret = attribute_is_modified (attr);
      break;
    case MU_ATTRIBUTE_RECENT:
      ret = attribute_is_recent (attr);
      break;
    default:
      attribute_get_flags (attr, &ret);
      ret &= SCM_INUM (FLAG);
    }
  return ret ? SCM_BOOL_T : SCM_BOOL_F;
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_set_flag, "mu-message-set-flag", 2, 1, 0,
	    (SCM MESG, SCM FLAG, SCM VALUE),
	    "Set the given attribute of the message. If optional VALUE is #f, the\n"
	    "attribute is unset.")
#define FUNC_NAME s_mu_message_set_flag
{
  message_t msg;
  attribute_t attr;
  int value = 1;

  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  SCM_ASSERT (SCM_IMP (FLAG) && SCM_INUMP (FLAG), FLAG, SCM_ARG2, FUNC_NAME);

  if (!SCM_UNBNDP (VALUE))
    {
      SCM_ASSERT (SCM_IMP (VALUE) && SCM_BOOLP (VALUE),
		  VALUE, SCM_ARG3, FUNC_NAME);
      value = VALUE == SCM_BOOL_T;
    }
  
  message_get_attribute (msg, &attr);
  switch (SCM_INUM (FLAG))
    {
    case MU_ATTRIBUTE_ANSWERED:
      if (value)
	attribute_set_answered (attr);
      else
	attribute_unset_answered (attr);
      break;
    case MU_ATTRIBUTE_FLAGGED:
      if (value)
	attribute_set_flagged (attr);
      else
	attribute_unset_flagged (attr);
      break;
    case MU_ATTRIBUTE_DELETED:
      if (value)
	attribute_set_deleted (attr);
      else
	attribute_unset_deleted (attr);
      break;
    case MU_ATTRIBUTE_DRAFT:
      if (value)
	attribute_set_draft (attr);
      else
	attribute_unset_draft (attr);
      break;
    case MU_ATTRIBUTE_SEEN:
      if (value)
	attribute_set_seen (attr);
      else
	attribute_unset_seen (attr);
      break;
    case MU_ATTRIBUTE_READ:
      if (value)
	attribute_set_read (attr);
      else
	attribute_unset_read (attr);
      break;
    case MU_ATTRIBUTE_MODIFIED:
      if (value)
	attribute_set_modified (attr);
      else
	attribute_clear_modified (attr);
      break;
    case MU_ATTRIBUTE_RECENT:
      if (value)
	attribute_set_recent (attr);
      else
	attribute_unset_recent (attr);
      break;
    default:
      if (value)
	attribute_set_flags (attr, SCM_INUM (FLAG));
    }
  return SCM_UNDEFINED;
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_get_user_flag, "mu-message-get-user-flag", 2, 0, 0,
	    (SCM MESG, SCM FLAG),
	    "Returns value of the user attribute FLAG.")
#define FUNC_NAME s_mu_message_get_user_flag
{
  message_t msg;
  attribute_t attr;

  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  SCM_ASSERT (SCM_IMP (FLAG) && SCM_INUMP (FLAG), FLAG, SCM_ARG2, FUNC_NAME);
  message_get_attribute (msg, &attr);
  return attribute_is_userflag (attr, SCM_INUM (FLAG)) ?
                                SCM_BOOL_T : SCM_BOOL_F;
}
#undef FUNC_NAME
  

SCM_DEFINE (mu_message_set_user_flag, "mu-message-set-user-flag", 2, 1, 0,
	    (SCM MESG, SCM FLAG, SCM VALUE),
	    "Set the given user attribute of the message. If optional VALUE is\n"
	    "#f, the attribute is unset.")
#define FUNC_NAME s_mu_message_set_user_flag
{
  message_t msg;
  attribute_t attr;
  int set = 1;

  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  SCM_ASSERT (SCM_IMP (FLAG) && SCM_INUMP (FLAG), FLAG, SCM_ARG2, FUNC_NAME);

  if (!SCM_UNBNDP (VALUE))
    {
      SCM_ASSERT (SCM_IMP (VALUE) && SCM_BOOLP (VALUE),
		  VALUE, SCM_ARG3, FUNC_NAME);
      set = VALUE == SCM_BOOL_T;
    }
  
  message_get_attribute (msg, &attr);
  if (set)
    attribute_set_userflag (attr, SCM_INUM (FLAG));
  else
    attribute_unset_userflag (attr, SCM_INUM (FLAG));
  return SCM_UNDEFINED;
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_get_port, "mu-message-get-port", 2, 1, 0,
	    (SCM MESG, SCM MODE, SCM FULL),
	    "Returns a port associated with the given MESG. MODE is a string\n"
	    "defining operation mode of the stream. It may contain any of the\n"
	    "two characters: \"r\" for reading, \"w\" for writing.\n"
	    "If optional FULL argument specified, it should be a boolean value.\n"
	    "If it is #t then the returned port will allow access to any\n"
	    "part of the message (including headers). If it is #f then the port\n"
	    "accesses only the message body (the default).\n")
#define FUNC_NAME s_mu_message_get_port
{
  message_t msg;
  stream_t stream = NULL;
  
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  SCM_ASSERT (SCM_NIMP (MODE) && SCM_STRINGP (MODE),
	      MODE, SCM_ARG2, FUNC_NAME);

  msg = mu_scm_message_get (MESG);

  if (!SCM_UNBNDP (FULL))
    {
      SCM_ASSERT (SCM_IMP (FULL) && SCM_BOOLP (FULL),
		  FULL, SCM_ARG3, FUNC_NAME);
      if (FULL == SCM_BOOL_T && message_get_stream (msg, &stream))
	return SCM_BOOL_F;
    }

  if (!stream)
    {
      body_t body = NULL;

      if (message_get_body (msg, &body)
	  || body_get_stream (body, &stream))
	return SCM_BOOL_F;
    }
  
  return mu_port_make_from_stream (MESG, stream,
				   scm_mode_bits (SCM_STRING_CHARS (MODE)));    
}
#undef FUNC_NAME
  

SCM_DEFINE (mu_message_get_body, "mu-message-get-body", 1, 0, 0,
	    (SCM MESG),
	    "Returns the message body for the message MESG.")
#define FUNC_NAME s_mu_message_get_body
{
  message_t msg;
  body_t body = NULL;

  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  if (message_get_body (msg, &body))
    return SCM_BOOL_F;
  return mu_scm_body_create (MESG, body);
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_multipart_p, "mu-message-multipart?", 1, 0, 0,
	    (SCM MESG),
	    "Returns #t if MESG is a multipart MIME message.")
#define FUNC_NAME s_mu_message_multipart_p
{
  message_t msg;
  int ismime = 0;
  
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  message_is_multipart (msg, &ismime);
  return ismime ? SCM_BOOL_T : SCM_BOOL_F;
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_get_num_parts, "mu-message-get-num-parts", 1, 0, 0,
	    (SCM MESG),
	    "Returns number of parts in a multipart MIME message. Returns\n"
            "#f if the argument is not a multipart message.")
#define FUNC_NAME s_mu_message_get_num_parts
{
  message_t msg;
  int ismime = 0;
  size_t nparts = 0;
  
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  message_is_multipart (msg, &ismime);
  if (!ismime)
    return SCM_BOOL_F;

  message_get_num_parts (msg, &nparts);
  return scm_makenum (nparts);
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_get_part, "mu-message-get-part", 2, 0, 0,
	    (SCM MESG, SCM PART),
	    "Returns part number PART from a multipart MIME message.")
#define FUNC_NAME s_mu_message_get_part
{
  message_t msg, submsg;
  int ismime = 0;
  
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  SCM_ASSERT (SCM_IMP (PART) && SCM_INUMP (PART), PART, SCM_ARG2, FUNC_NAME);

  msg = mu_scm_message_get (MESG);
  message_is_multipart (msg, &ismime);
  if (!ismime)
    return SCM_BOOL_F;

  if (message_get_part (msg, SCM_INUM (PART), &submsg))
    return SCM_BOOL_F;
  return mu_scm_message_create (MESG, submsg);
}
#undef FUNC_NAME

SCM_DEFINE (mu_message_send, "mu-message-send", 1, 3, 0,
	    (SCM MESG, SCM MAILER, SCM FROM, SCM TO),
	    "Sends the message MESG. Optional MAILER overrides default\n"
	    "mailer settings in mu-mailer.\n"
	    "Optional FROM and TO are sender and recever addresses\n")
#define FUNC_NAME s_mu_message_send
{
  char *mailer_name;
  address_t from = NULL;
  address_t to = NULL;
  mailer_t mailer = NULL;
  message_t msg;
  int status;
  
  SCM_ASSERT (mu_scm_is_message (MESG), MESG, SCM_ARG1, FUNC_NAME);
  msg = mu_scm_message_get (MESG);
  
  if (!SCM_UNBNDP (MAILER) && MAILER != SCM_BOOL_F)
    {
      SCM_ASSERT (SCM_NIMP (MAILER) && SCM_STRINGP (MAILER),
		  MAILER, SCM_ARG2, FUNC_NAME);
      mailer_name = SCM_STRING_CHARS (MAILER);
    }
  else
    mailer_name = SCM_STRING_CHARS(_mu_scm_mailer);

  if (!SCM_UNBNDP (FROM) && FROM != SCM_BOOL_F)
    {
      SCM_ASSERT (SCM_NIMP (FROM) && SCM_STRINGP (FROM)
		  && address_create (&from, SCM_STRING_CHARS (FROM)) == 0,
		  FROM, SCM_ARG3, FUNC_NAME);
    }
  
  if (!SCM_UNBNDP (TO) && TO != SCM_BOOL_F)
    {
      SCM_ASSERT (SCM_NIMP (TO) && SCM_STRINGP (TO)
		  && address_create (&to, SCM_STRING_CHARS (TO)) == 0,
		  TO, SCM_ARG4, FUNC_NAME);
    }

  if (mailer_create (&mailer, mailer_name))
    {
      return SCM_BOOL_F;
    }

  if (SCM_INUM(_mu_scm_debug))
    {
      mu_debug_t debug = NULL;
      mailer_get_debug (mailer, &debug);
      mu_debug_set_level (debug, MU_DEBUG_TRACE|MU_DEBUG_PROT);
    }

  status = mailer_open (mailer, MU_STREAM_RDWR);
  if (status == 0)
    {
      status = mailer_send_message (mailer, msg, from, to);
      mailer_close (mailer);
    }
  mailer_destroy (&mailer);
  
  return status == 0 ? SCM_BOOL_T : SCM_BOOL_F;
}
#undef FUNC_NAME

/* Initialize the module */

void
mu_scm_message_init ()
{
  message_tag = scm_make_smob_type ("message", sizeof (struct mu_message));
  scm_set_smob_mark (message_tag, mu_scm_message_mark);
  scm_set_smob_free (message_tag, mu_scm_message_free);
  scm_set_smob_print (message_tag, mu_scm_message_print);

#include "mu_message.x"

}

Return to:

Send suggestions and report system problems to the System administrator.