edit.c 11 KB
Newer Older
Thomas Roessler's avatar
Thomas Roessler committed
1
/*
2
 * Copyright (C) 1996-2000 Michael R. Elkins <me@cs.hmc.edu>
Thomas Roessler's avatar
Thomas Roessler committed
3 4 5 6 7 8 9 10 11 12 13 14 15
 * 
 *     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
16
 *     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
Thomas Roessler's avatar
Thomas Roessler committed
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
 */ 

/* Close approximation of the mailx(1) builtin editor for sending mail. */

#include "mutt.h"
#include "mutt_curses.h"

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>

/*
 * SLcurses_waddnstr() can't take a "const char *", so this is only
 * declared "static" (sigh)
 */
36
static char* EditorHelp = N_("\
Thomas Roessler's avatar
Thomas Roessler committed
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
~~		insert a line begining with a single ~\n\
~b users	add users to the Bcc: field\n\
~c users	add users to the Cc: field\n\
~f messages	include messages\n\
~F messages	same as ~f, except also include headers\n\
~h		edit the message header\n\
~m messages	include and quote messages\n\
~M messages	same as ~m, except include headers\n\
~p		print the message\n\
~q		write file and quit editor\n\
~r file		read a file into the editor\n\
~t users	add users to the To: field\n\
~u		recall the previous line\n\
~v		edit message with the $visual editor\n\
~w file		write message to file\n\
~x		abort changes and quit editor\n\
~?		this message\n\
54
.		on a line by itself ends input\n");
Thomas Roessler's avatar
Thomas Roessler committed
55 56 57 58 59 60 61 62 63 64 65 66

static char **
be_snarf_data (FILE *f, char **buf, int *bufmax, int *buflen, int offset,
	       int bytes, int prefix)
{
  char tmp[HUGE_STRING];
  char *p = tmp;
  int tmplen = sizeof (tmp);

  tmp[sizeof (tmp) - 1] = 0;
  if (prefix)
  {
Thomas Roessler's avatar
Thomas Roessler committed
67
    strfcpy (tmp, NONULL(Prefix), sizeof (tmp));
68
    tmplen = mutt_strlen (tmp);
Thomas Roessler's avatar
Thomas Roessler committed
69 70 71 72 73 74 75 76
    p = tmp + tmplen;
    tmplen = sizeof (tmp) - tmplen;
  }

  fseek (f, offset, 0);
  while (bytes > 0)
  {
    if (fgets (p, tmplen - 1, f) == NULL) break;
77
    bytes -= mutt_strlen (p);
Thomas Roessler's avatar
Thomas Roessler committed
78 79 80 81
    if (*bufmax == *buflen)
      safe_realloc ((void **)&buf, sizeof (char *) * (*bufmax += 25));
    buf[(*buflen)++] = safe_strdup (tmp);
  }
82 83 84
  if (buf && *bufmax == *buflen) { /* Do not smash memory past buf */
    safe_realloc ((void **)&buf, sizeof (char *) * (++*bufmax));
  }
Thomas Roessler's avatar
Thomas Roessler committed
85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101
  if (buf) buf[*buflen] = NULL;
  return (buf);
}

static char **
be_snarf_file (const char *path, char **buf, int *max, int *len, int verbose)
{
  FILE *f;
  char tmp[LONG_STRING];
  struct stat sb;
  
  if ((f = fopen (path, "r")))
  {
    fstat (fileno (f), &sb);
    buf = be_snarf_data (f, buf, max, len, 0, sb.st_size, 0);
    if (verbose)
    {
102
      snprintf(tmp, sizeof(tmp), "\"%s\" %lu bytes\n", path, (unsigned long) sb.st_size);
Thomas Roessler's avatar
Thomas Roessler committed
103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119
      addstr(tmp);
    }
    fclose (f);
  }
  else
  {
    snprintf(tmp, sizeof(tmp), "%s: %s\n", path, strerror(errno));
    addstr(tmp);
  }
  return (buf);
}

static int be_barf_file (const char *path, char **buf, int buflen)
{
  FILE *f;
  int i;
  
120
  if ((f = fopen (path, "w")) == NULL)		/* __FOPEN_CHECKED__ */
Thomas Roessler's avatar
Thomas Roessler committed
121 122 123 124 125 126 127 128 129 130 131 132 133 134
  {
    addstr (strerror (errno));
    addch ('\n');
    return (-1);
  }
  for (i = 0; i < buflen; i++) fputs (buf[i], f);
  if (fclose (f) == 0) return 0;
  printw ("fclose: %s\n", strerror (errno));
  return (-1);
}

static void be_free_memory (char **buf, int buflen)
{
  while (buflen-- > 0)
Thomas Roessler's avatar
Thomas Roessler committed
135
    FREE (&buf[buflen]);
Thomas Roessler's avatar
Thomas Roessler committed
136
  if (buf)
Thomas Roessler's avatar
Thomas Roessler committed
137
    FREE (&buf);
Thomas Roessler's avatar
Thomas Roessler committed
138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156
}

static char **
be_include_messages (char *msg, char **buf, int *bufmax, int *buflen,
		     int pfx, int inc_hdrs)
{
  int offset, bytes, n;
  char tmp[LONG_STRING];

  while ((msg = strtok (msg, " ,")) != NULL)
  {
    n = atoi (msg);
    if (n > 0 && n <= Context->msgcount)
    {
      n--;

      /* add the attribution */
      if (Attribution)
      {
Thomas Roessler's avatar
Thomas Roessler committed
157
	mutt_make_string (tmp, sizeof (tmp) - 1, Attribution, Context, Context->hdrs[n]);
158
	strcat (tmp, "\n");	/* __STRCAT_CHECKED__ */
Thomas Roessler's avatar
Thomas Roessler committed
159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180
      }

      if (*bufmax == *buflen)
	safe_realloc ((void **) &buf, sizeof (char *) * (*bufmax += 25));
      buf[(*buflen)++] = safe_strdup (tmp);

      bytes = Context->hdrs[n]->content->length;
      if (inc_hdrs)
      {
	offset = Context->hdrs[n]->offset;
	bytes += Context->hdrs[n]->content->offset - offset;
      }
      else
	offset = Context->hdrs[n]->content->offset;
      buf = be_snarf_data (Context->fp, buf, bufmax, buflen, offset, bytes,
			   pfx);

      if (*bufmax == *buflen)
	safe_realloc ((void **)&buf, sizeof (char *) * (*bufmax += 25));
      buf[(*buflen)++] = safe_strdup ("\n");
    }
    else
181
      printw (_("%d: invalid message number.\n"), n);
Thomas Roessler's avatar
Thomas Roessler committed
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
    msg = NULL;
  }
  return (buf);
}

static void be_print_header (ENVELOPE *env)
{
  char tmp[HUGE_STRING];

  if (env->to)
  {
    addstr ("To: ");
    tmp[0] = 0;
    rfc822_write_address (tmp, sizeof (tmp), env->to);
    addstr (tmp);
    addch ('\n');
  }
  if (env->cc)
  {
    addstr ("Cc: ");
    tmp[0] = 0;
    rfc822_write_address (tmp, sizeof (tmp), env->cc);
    addstr (tmp);
    addch ('\n');
  }
  if (env->bcc)
  {
    addstr ("Bcc: ");
    tmp[0] = 0;
    rfc822_write_address (tmp, sizeof (tmp), env->bcc);
    addstr (tmp);
    addch ('\n');
  }
  if (env->subject)
  {
    addstr ("Subject: ");
    addstr (env->subject);
    addch ('\n');
  }
  addch ('\n');
}

/* args:
 *	force	override the $ask* vars (used for the ~h command)
 */
static void be_edit_header (ENVELOPE *e, int force)
{
  char tmp[HUGE_STRING];

  move (LINES-1, 0);

  addstr ("To: ");
  tmp[0] = 0;
  rfc822_write_address (tmp, sizeof (tmp), e->to);
  if (!e->to || force)
  {
238
    if (mutt_enter_string (tmp, sizeof (tmp), LINES-1, 4, 0) == 0)
Thomas Roessler's avatar
Thomas Roessler committed
239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257
    {
      rfc822_free_address (&e->to);
      e->to = mutt_parse_adrlist (e->to, tmp);
      e->to = mutt_expand_aliases (e->to);
      tmp[0] = 0;
      rfc822_write_address (tmp, sizeof (tmp), e->to);
      mvaddstr (LINES - 1, 4, tmp);
    }
  }
  else
  {
    addstr (tmp);
  }
  addch ('\n');

  if (!e->subject || force)
  {
    addstr ("Subject: ");
    strfcpy (tmp, e->subject ? e->subject: "", sizeof (tmp));
258
    if (mutt_enter_string (tmp, sizeof (tmp), LINES-1, 9, 0) == 0)
259
      mutt_str_replace (&e->subject, tmp);
Thomas Roessler's avatar
Thomas Roessler committed
260 261 262 263 264 265 266 267
    addch ('\n');
  }

  if ((!e->cc && option (OPTASKCC)) || force)
  {
    addstr ("Cc: ");
    tmp[0] = 0;
    rfc822_write_address (tmp, sizeof (tmp), e->cc);
268
    if (mutt_enter_string (tmp, sizeof (tmp), LINES-1, 4, 0) == 0)
Thomas Roessler's avatar
Thomas Roessler committed
269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284
    {
      rfc822_free_address (&e->cc);
      e->cc = mutt_parse_adrlist (e->cc, tmp);
      e->cc = mutt_expand_aliases (e->cc);
      tmp[0] = 0;
      rfc822_write_address (tmp, sizeof (tmp), e->cc);
      mvaddstr (LINES - 1, 4, tmp);
    }
    addch ('\n');
  }

  if (option (OPTASKBCC) || force)
  {
    addstr ("Bcc: ");
    tmp[0] = 0;
    rfc822_write_address (tmp, sizeof (tmp), e->bcc);
285
    if (mutt_enter_string (tmp, sizeof (tmp), LINES-1, 5, 0) == 0)
Thomas Roessler's avatar
Thomas Roessler committed
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
    {
      rfc822_free_address (&e->bcc);
      e->bcc = mutt_parse_adrlist (e->bcc, tmp);
      e->bcc = mutt_expand_aliases (e->bcc);
      tmp[0] = 0;
      rfc822_write_address (tmp, sizeof (tmp), e->bcc);
      mvaddstr (LINES - 1, 5, tmp);
    }
    addch ('\n');
  }
}

int mutt_builtin_editor (const char *path, HEADER *msg, HEADER *cur)
{
  char **buf = NULL;
  int bufmax = 0, buflen = 0;
  char tmp[LONG_STRING];
  int abort = 0;
  int done = 0;
  int i;
  char *p;
  
  scrollok (stdscr, TRUE);

  be_edit_header (msg->env, 0);

312
  addstr (_("(End message with a . on a line by itself)\n"));
Thomas Roessler's avatar
Thomas Roessler committed
313 314 315 316 317 318

  buf = be_snarf_file (path, buf, &bufmax, &buflen, 0);

  tmp[0] = 0;
  while (!done)
  {
319
    if (mutt_enter_string (tmp, sizeof (tmp), LINES-1, 0, 0) == -1)
Thomas Roessler's avatar
Thomas Roessler committed
320 321 322 323 324 325
    {
      tmp[0] = 0;
      continue;
    }
    addch ('\n');

Thomas Roessler's avatar
Thomas Roessler committed
326
    if (EscChar && tmp[0] == EscChar[0] && tmp[1] != EscChar[0])
Thomas Roessler's avatar
Thomas Roessler committed
327 328
    {
      /* remove trailing whitespace from the line */
329
      p = tmp + mutt_strlen (tmp) - 1;
Thomas Roessler's avatar
Thomas Roessler committed
330 331 332 333 334 335 336 337 338
      while (p >= tmp && ISSPACE (*p))
	*p-- = 0;

      p = tmp + 2;
      SKIPWS (p);

      switch (tmp[1])
      {
	case '?':
339
	  addstr (_(EditorHelp));
Thomas Roessler's avatar
Thomas Roessler committed
340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358
	  break;
	case 'b':
	  msg->env->bcc = mutt_parse_adrlist (msg->env->bcc, p);
	  msg->env->bcc = mutt_expand_aliases (msg->env->bcc);
	  break;
	case 'c':
	  msg->env->cc = mutt_parse_adrlist (msg->env->cc, p);
	  msg->env->cc = mutt_expand_aliases (msg->env->cc);
	  break;
	case 'h':
	  be_edit_header (msg->env, 1);
	  break;
	case 'F':
	case 'f':
	case 'm':
	case 'M':
	  if (Context)
	  {
	    if (!*p && cur)
359
 	    {
Thomas Roessler's avatar
Thomas Roessler committed
360
	      /* include the current message */
361 362
	      p = tmp + mutt_strlen (tmp) + 1;
	      snprintf (tmp + mutt_strlen (tmp), sizeof (tmp) - mutt_strlen (tmp), " %d",
Thomas Roessler's avatar
Thomas Roessler committed
363 364 365
								cur->msgno + 1);
	    }
	    buf = be_include_messages (p, buf, &bufmax, &buflen,
366 367
				       (ascii_tolower (tmp[1]) == 'm'),
				       (ascii_isupper ((unsigned char) tmp[1])));
Thomas Roessler's avatar
Thomas Roessler committed
368 369
	  }
	  else
370
	    addstr (_("No mailbox.\n"));
Thomas Roessler's avatar
Thomas Roessler committed
371 372 373
	  break;
	case 'p':
	  addstr ("-----\n");
374
	  addstr (_("Message contains:\n"));
Thomas Roessler's avatar
Thomas Roessler committed
375 376 377
	  be_print_header (msg->env);
	  for (i = 0; i < buflen; i++)
	    addstr (buf[i]);
378
	  addstr (_("(continue)\n"));
Thomas Roessler's avatar
Thomas Roessler committed
379 380 381 382 383 384
	  break;
	case 'q':
	  done = 1;
	  break;
	case 'r':
	  if (*p)
Thomas Roessler's avatar
Thomas Roessler committed
385 386 387 388 389
          {
	    strncpy(tmp, p, sizeof(tmp));
	    mutt_expand_path(tmp, sizeof(tmp));
	    buf = be_snarf_file (tmp, buf, &bufmax, &buflen, 1);
          }
Thomas Roessler's avatar
Thomas Roessler committed
390
	  else
391
	    addstr (_("missing filename.\n"));
Thomas Roessler's avatar
Thomas Roessler committed
392 393
	  break;
	case 's':
394
	  mutt_str_replace (&msg->env->subject, p);
Thomas Roessler's avatar
Thomas Roessler committed
395 396 397 398 399 400 401 402 403 404
	  break;
	case 't':
	  msg->env->to = rfc822_parse_adrlist (msg->env->to, p);
	  msg->env->to = mutt_expand_aliases (msg->env->to);
	  break;
	case 'u':
	  if (buflen)
	  {
	    buflen--;
	    strfcpy (tmp, buf[buflen], sizeof (tmp));
405
	    tmp[mutt_strlen (tmp)-1] = 0;
Thomas Roessler's avatar
Thomas Roessler committed
406
	    FREE (&buf[buflen]);
Thomas Roessler's avatar
Thomas Roessler committed
407 408 409 410
	    buf[buflen] = NULL;
	    continue;
	  }
	  else
411
	    addstr (_("No lines in message.\n"));
Thomas Roessler's avatar
Thomas Roessler committed
412 413 414 415 416 417 418 419 420 421 422
	  break;

	case 'e':
	case 'v':
	  if (be_barf_file (path, buf, buflen) == 0)
	  {
	    be_free_memory (buf, buflen);
	    buf = NULL;
	    bufmax = buflen = 0;

	    if (option (OPTEDITHDRS))
Thomas Roessler's avatar
Thomas Roessler committed
423
	      mutt_edit_headers (NONULL(Visual), path, msg, NULL, 0);
Thomas Roessler's avatar
Thomas Roessler committed
424
	    else
Thomas Roessler's avatar
Thomas Roessler committed
425
	      mutt_edit_file (NONULL(Visual), path);
Thomas Roessler's avatar
Thomas Roessler committed
426 427 428

	    buf = be_snarf_file (path, buf, &bufmax, &buflen, 0);

429
	    addstr (_("(continue)\n"));
Thomas Roessler's avatar
Thomas Roessler committed
430 431 432 433 434 435 436 437 438 439
	  }
	  break;
	case 'w':
	  be_barf_file (*p ? p : path, buf, buflen);
	  break;
	case 'x':
	  abort = 1;
	  done = 1;
	  break;
	default:
440
	  printw (_("%s: unknown editor command (~? for help)\n"), tmp);
Thomas Roessler's avatar
Thomas Roessler committed
441 442 443
	  break;
      }
    }
444
    else if (mutt_strcmp (".", tmp) == 0)
Thomas Roessler's avatar
Thomas Roessler committed
445 446 447
      done = 1;
    else
    {
448
      strncat (tmp, "\n", sizeof(tmp)); tmp[sizeof(tmp) - 1] = '\0';
Thomas Roessler's avatar
Thomas Roessler committed
449 450 451 452 453 454 455 456 457 458 459 460 461
      if (buflen == bufmax)
	safe_realloc ((void **)&buf, sizeof (char *) * (bufmax += 25));
      buf[buflen++] = safe_strdup (tmp[1] == '~' ? tmp + 1 : tmp);
    }
    
    tmp[0] = 0;
  }

  if (!abort) be_barf_file (path, buf, buflen);
  be_free_memory (buf, buflen);

  return (abort ? -1 : 0);
}