File: editmsg.c

package info (click to toggle)
mutt 1.5.20-9%2Bsqueeze4
  • links: PTS, VCS
  • area: main
  • in suites: squeeze-lts
  • size: 15,064 kB
  • ctags: 5,313
  • sloc: ansic: 79,584; sh: 4,606; perl: 958; makefile: 720; yacc: 318; awk: 17
file content (233 lines) | stat: -rw-r--r-- 5,199 bytes parent folder | download | duplicates (2)
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
/*
 * Copyright (C) 1999-2002 Thomas Roessler <roessler@does-not-exist.org>
 * 
 *     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 of the License, 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., 51 Franklin Street, Fifth Floor,
 *     Boston, MA  02110-1301, USA.
 */ 

/* simple, editor-based message editing */

#if HAVE_CONFIG_H
# include "config.h"
#endif

#include "mutt.h"
#include "copy.h"
#include "mailbox.h"
#include "mx.h"

#include <sys/stat.h>
#include <errno.h>

#include <time.h>

/*
 * return value:
 * 
 * 1	message not modified
 * 0	message edited successfully
 * -1   error
 */

static int edit_one_message (CONTEXT *ctx, HEADER *cur)
{
  char tmp[_POSIX_PATH_MAX];
  char buff[STRING];
  int omagic;
  int oerrno;
  int rc;

  unsigned short o_read;
  unsigned short o_old;

  int of, cf;
  
  CONTEXT tmpctx;
  MESSAGE *msg;

  FILE *fp = NULL;

  struct stat sb;
  time_t mtime = 0;
  
  mutt_mktemp (tmp);

  omagic = DefaultMagic;
  DefaultMagic = M_MBOX;

  rc = (mx_open_mailbox (tmp, M_NEWFOLDER, &tmpctx) == NULL) ? -1 : 0;

  DefaultMagic = omagic;

  if (rc == -1)
  {
    mutt_error (_("could not create temporary folder: %s"), strerror (errno));
    return -1;
  }

  rc = mutt_append_message (&tmpctx, ctx, cur, 0, CH_NOLEN |
	((ctx->magic == M_MBOX || ctx->magic == M_MMDF) ? 0 : CH_NOSTATUS));
  oerrno = errno;

  mx_close_mailbox (&tmpctx, NULL);

  if (rc == -1)
  {
    mutt_error (_("could not write temporary mail folder: %s"), strerror (oerrno));
    goto bail;
  }

  if ((rc = stat (tmp, &sb)) == -1)
  {
    mutt_error (_("Can't stat %s: %s"), tmp, strerror (errno));
    goto bail;
  }

  /*
   * 2002-09-05 me@sigpipe.org
   * The file the user is going to edit is not a real mbox, so we need to
   * truncate the last newline in the temp file, which is logically part of
   * the message separator, and not the body of the message.  If we fail to
   * remove it, the message will grow by one line each time the user edits
   * the message.
   */
  if (sb.st_size != 0 && truncate (tmp, sb.st_size - 1) == -1)
  {
    mutt_error (_("could not truncate temporary mail folder: %s"),
		strerror (errno));
    goto bail;
  }

  mtime = mutt_decrease_mtime (tmp, &sb);

  mutt_edit_file (NONULL(Editor), tmp);

  if ((rc = stat (tmp, &sb)) == -1)
  {
    mutt_error (_("Can't stat %s: %s"), tmp, strerror (errno));
    goto bail;
  }
  
  if (sb.st_size == 0)
  {
    mutt_message (_("Message file is empty!"));
    rc = 1;
    goto bail;
  }

  if (sb.st_mtime == mtime)
  {
    mutt_message (_("Message not modified!"));
    rc = 1;
    goto bail;
  }

  if ((fp = fopen (tmp, "r")) == NULL)
  {
    rc = -1;
    mutt_error (_("Can't open message file: %s"), strerror (errno));
    goto bail;
  }

  if (mx_open_mailbox (ctx->path, M_APPEND, &tmpctx) == NULL)
  {
    rc = -1;
    mutt_error (_("Can't append to folder: %s"), strerror (errno));
    goto bail;
  }

  of = 0;
  cf = ((tmpctx.magic == M_MBOX || tmpctx.magic == M_MMDF) ? 0 : CH_NOSTATUS);
  
  if (fgets (buff, sizeof (buff), fp) && is_from (buff, NULL, 0, NULL))
  {
    if (tmpctx.magic == M_MBOX || tmpctx.magic == M_MMDF)
      cf = CH_FROM | CH_FORCE_FROM;
  }
  else
    of = M_ADD_FROM;

  /* 
   * XXX - we have to play games with the message flags to avoid
   * problematic behaviour with maildir folders.
   *
   */

  o_read = cur->read; o_old = cur->old;
  cur->read = cur->old = 0;
  msg = mx_open_new_message (&tmpctx, cur, of);
  cur->read = o_read; cur->old = o_old;

  if (msg == NULL)
  {
    mutt_error (_("Can't append to folder: %s"), strerror (errno));
    mx_close_mailbox (&tmpctx, NULL);
    goto bail;
  }

  if ((rc = mutt_copy_hdr (fp, msg->fp, 0, sb.st_size, CH_NOLEN | cf, NULL)) == 0)
  {
    fputc ('\n', msg->fp);
    rc = mutt_copy_stream (fp, msg->fp);
  }

  rc = mx_commit_message (msg, &tmpctx);
  mx_close_message (&msg);
  
  mx_close_mailbox (&tmpctx, NULL);
  
  bail:
  if (fp) safe_fclose (&fp);

  if (rc >= 0)
    unlink (tmp);

  if (rc == 0)
  {
    mutt_set_flag (Context, cur, M_DELETE, 1);
    mutt_set_flag (Context, cur, M_READ, 1);

    if (option (OPTDELETEUNTAG))
      mutt_set_flag (Context, cur, M_TAG, 0);
  }
  else if (rc == -1)
    mutt_message (_("Error. Preserving temporary file: %s"), tmp);

    
  return rc;
}

int mutt_edit_message (CONTEXT *ctx, HEADER *hdr)
{
  int i, j;

  if (hdr)
    return edit_one_message (ctx, hdr);

  
  for (i = 0; i < ctx->vcount; i++)
  {
    j = ctx->v2r[i];
    if (ctx->hdrs[j]->tagged)
    {
      if (edit_one_message (ctx, ctx->hdrs[j]) == -1)
	return -1;
    }
  }

  return 0;
}