2 * Copyright notice from original mutt:
3 * Copyright (C) 1999-2000 Thomas Roessler <roessler@does-not-exist.org>
5 * This file is part of mutt-ng, see http://www.muttng.org/.
6 * It's licensed under the GNU General Public License,
7 * please see the file GPL in the top level source directory.
11 * Mixmaster support for Mutt
19 #include "mutt_curses.h"
20 #include "mutt_menu.h"
34 #include <sys/types.h>
44 static REMAILER **mix_type2_list (size_t * l);
45 static REMAILER *mix_new_remailer (void);
46 static const char *mix_format_caps (REMAILER * r);
47 static int mix_chain_add (MIXCHAIN * chain, const char *s,
48 REMAILER ** type2_list);
49 static int mix_get_caps (const char *capstr);
50 static void mix_add_entry (REMAILER ***, REMAILER *, size_t *, size_t *);
51 static void mix_entry (char *b, size_t blen, MUTTMENU * menu, int num);
52 static void mix_free_remailer (REMAILER ** r);
53 static void mix_free_type2_list (REMAILER *** ttlp);
54 static void mix_redraw_ce (REMAILER ** type2_list, struct coord *coords,
55 MIXCHAIN * chain, int i, short selected);
56 static void mix_redraw_chain (REMAILER ** type2_list, struct coord *coords,
57 MIXCHAIN * chain, int cur);
58 static void mix_redraw_head (MIXCHAIN *);
59 static void mix_screen_coordinates (REMAILER ** type2_list, struct coord **,
62 static int mix_get_caps (const char *capstr)
69 caps |= MIX_CAP_COMPRESS;
73 caps |= MIX_CAP_MIDDLEMAN;
80 caps |= MIX_CAP_NEWSMAIL;
84 caps |= MIX_CAP_NEWSPOST;
98 static void mix_add_entry (REMAILER *** type2_list, REMAILER * entry,
99 size_t * slots, size_t * used)
101 if (*used == *slots) {
103 safe_realloc (type2_list, sizeof (REMAILER *) * (*slots));
106 (*type2_list)[(*used)++] = entry;
111 static REMAILER *mix_new_remailer (void)
113 return safe_calloc (1, sizeof (REMAILER));
116 static void mix_free_remailer (REMAILER ** r)
118 FREE (&(*r)->shortname);
125 /* parse the type2.list as given by mixmaster -T */
127 static REMAILER **mix_type2_list (size_t * l)
133 char cmd[HUGE_STRING + _POSIX_PATH_MAX];
134 char line[HUGE_STRING];
137 REMAILER **type2_list = NULL, *p;
138 size_t slots = 0, used = 0;
143 if ((devnull = open ("/dev/null", O_RDWR)) == -1)
146 snprintf (cmd, sizeof (cmd), "%s -T", Mixmaster);
149 mutt_create_filter_fd (cmd, NULL, &fp, NULL, devnull, -1,
155 /* first, generate the "random" remailer */
157 p = mix_new_remailer ();
158 p->shortname = safe_strdup ("<random>");
159 mix_add_entry (&type2_list, p, &slots, &used);
161 while (fgets (line, sizeof (line), fp)) {
162 p = mix_new_remailer ();
164 if (!(t = strtok (line, " \t\n")))
167 p->shortname = safe_strdup (t);
169 if (!(t = strtok (NULL, " \t\n")))
172 p->addr = safe_strdup (t);
174 if (!(t = strtok (NULL, " \t\n")))
177 if (!(t = strtok (NULL, " \t\n")))
180 p->ver = safe_strdup (t);
182 if (!(t = strtok (NULL, " \t\n")))
185 p->caps = mix_get_caps (t);
187 mix_add_entry (&type2_list, p, &slots, &used);
191 mix_free_remailer (&p);
196 mix_add_entry (&type2_list, NULL, &slots, &used);
197 mutt_wait_filter (mm_pid);
204 static void mix_free_type2_list (REMAILER *** ttlp)
207 REMAILER **type2_list = *ttlp;
209 for (i = 0; type2_list[i]; i++)
210 mix_free_remailer (&type2_list[i]);
216 #define MIX_HOFFSET 2
217 #define MIX_VOFFSET (LINES - 6)
218 #define MIX_MAXROW (LINES - 3)
221 static void mix_screen_coordinates (REMAILER ** type2_list,
222 struct coord **coordsp,
223 MIXCHAIN * chain, int i)
226 struct coord *coords;
231 safe_realloc (coordsp, sizeof (struct coord) * chain->cl);
237 coords[i - 1].c + safe_strlen (type2_list[chain->ch[i - 1]]->shortname) + 2;
246 for (; i < chain->cl; i++) {
248 c += safe_strlen (type2_list[chain->ch[i]]->shortname) + 2;
251 oc = c = MIX_HOFFSET;
262 static void mix_redraw_ce (REMAILER ** type2_list,
263 struct coord *coords,
264 MIXCHAIN * chain, int i, short selected)
266 if (!coords || !chain)
269 if (coords[i].r < MIX_MAXROW) {
272 SETCOLOR (MT_COLOR_INDICATOR);
274 SETCOLOR (MT_COLOR_NORMAL);
276 mvaddstr (coords[i].r, coords[i].c, type2_list[chain->ch[i]]->shortname);
277 SETCOLOR (MT_COLOR_NORMAL);
279 if (i + 1 < chain->cl)
284 static void mix_redraw_chain (REMAILER ** type2_list,
285 struct coord *coords, MIXCHAIN * chain, int cur)
289 SETCOLOR (MT_COLOR_NORMAL);
290 BKGDSET (MT_COLOR_NORMAL);
292 for (i = MIX_VOFFSET; i < MIX_MAXROW; i++) {
297 for (i = 0; i < chain->cl; i++)
298 mix_redraw_ce (type2_list, coords, chain, i, i == cur);
301 static void mix_redraw_head (MIXCHAIN * chain)
303 SETCOLOR (MT_COLOR_STATUS);
304 mvprintw (MIX_VOFFSET - 1, 0, "-- Remailer chain [Length: %d]",
305 chain ? chain->cl : 0);
307 BKGDSET (MT_COLOR_STATUS);
310 BKGDSET (MT_COLOR_NORMAL);
311 SETCOLOR (MT_COLOR_NORMAL);
314 static const char *mix_format_caps (REMAILER * r)
316 static char capbuff[10];
319 if (r->caps & MIX_CAP_COMPRESS)
324 if (r->caps & MIX_CAP_MIDDLEMAN)
329 if (r->caps & MIX_CAP_NEWSPOST) {
338 if (r->caps & MIX_CAP_NEWSMAIL) {
353 * Format an entry for the remailer menu.
362 static const char *mix_entry_fmt (char *dest,
367 const char *ifstring,
368 const char *elsestring,
369 unsigned long data, format_flag flags)
372 REMAILER *remailer = (REMAILER *) data;
373 int optional = (flags & M_FORMAT_OPTIONAL);
378 snprintf (fmt, sizeof (fmt), "%%%sd", prefix);
379 snprintf (dest, destlen, fmt, remailer->num);
384 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
385 snprintf (dest, destlen, fmt, mix_format_caps (remailer));
390 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
391 snprintf (dest, destlen, fmt, NONULL (remailer->shortname));
393 else if (!remailer->shortname)
398 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
399 snprintf (dest, destlen, fmt, NONULL (remailer->addr));
401 else if (!remailer->addr)
410 mutt_FormatString (dest, destlen, ifstring, mutt_attach_fmt, data, 0);
411 else if (flags & M_FORMAT_OPTIONAL)
412 mutt_FormatString (dest, destlen, elsestring, mutt_attach_fmt, data, 0);
418 static void mix_entry (char *b, size_t blen, MUTTMENU * menu, int num)
420 REMAILER **type2_list = (REMAILER **) menu->data;
422 mutt_FormatString (b, blen, NONULL (MixEntryFormat), mix_entry_fmt,
423 (unsigned long) type2_list[num], M_FORMAT_ARROWCURSOR);
426 static int mix_chain_add (MIXCHAIN * chain, const char *s,
427 REMAILER ** type2_list)
431 if (chain->cl >= MAXMIXES)
434 if (!safe_strcmp (s, "0") || !ascii_strcasecmp (s, "<random>")) {
435 chain->ch[chain->cl++] = 0;
439 for (i = 0; type2_list[i]; i++) {
440 if (!ascii_strcasecmp (s, type2_list[i]->shortname)) {
441 chain->ch[chain->cl++] = i;
446 /* replace unknown remailers by <random> */
449 chain->ch[chain->cl++] = 0;
454 static struct mapping_t RemailerHelp[] = {
455 {N_("Append"), OP_MIX_APPEND},
456 {N_("Insert"), OP_MIX_INSERT},
457 {N_("Delete"), OP_MIX_DELETE},
458 {N_("Abort"), OP_EXIT},
459 {N_("OK"), OP_MIX_USE},
464 void mix_make_chain (LIST ** chainp, int *redraw)
468 int c_cur = 0, c_old = 0;
472 REMAILER **type2_list = NULL;
475 struct coord *coords = NULL;
478 char helpstr[SHORT_STRING];
485 if (!(type2_list = mix_type2_list (&ttll))) {
486 mutt_error _("Can't get mixmaster's type2.list!");
491 *redraw = REDRAW_FULL;
493 chain = safe_calloc (sizeof (MIXCHAIN), 1);
494 for (p = *chainp; p; p = p->next)
495 mix_chain_add (chain, (char *) p->data, type2_list);
497 mutt_free_list (chainp);
500 for (i = 0; i < chain->cl; i++) {
501 if (chain->ch[i] >= ttll)
505 mix_screen_coordinates (type2_list, &coords, chain, 0);
507 menu = mutt_new_menu ();
508 menu->menu = MENU_MIX;
510 menu->make_entry = mix_entry;
512 menu->title = _("Select a remailer chain.");
513 menu->data = type2_list;
515 mutt_compile_help (helpstr, sizeof (helpstr), MENU_MIX, RemailerHelp);
517 m_len = menu->pagelen = MIX_VOFFSET - menu->offset - 1;
520 if (menu->pagelen != m_len) {
521 menu->pagelen = m_len;
522 menu->redraw = REDRAW_FULL;
526 mix_redraw_head (chain);
527 mix_redraw_chain (type2_list, coords, chain, c_cur);
530 else if (c_cur != c_old) {
531 mix_redraw_ce (type2_list, coords, chain, c_old, 0);
532 mix_redraw_ce (type2_list, coords, chain, c_cur, 1);
537 switch ((op = mutt_menuLoop (menu))) {
540 menu_redraw_status (menu);
541 mix_redraw_head (chain);
542 mix_screen_coordinates (type2_list, &coords, chain, 0);
543 mix_redraw_chain (type2_list, coords, chain, c_cur);
544 menu->pagelen = m_len = MIX_VOFFSET - menu->offset - 1;
559 chain->ch[0] = menu->current;
560 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
564 if (chain->cl && chain->ch[chain->cl - 1] &&
565 (type2_list[chain->ch[chain->cl - 1]]->caps & MIX_CAP_MIDDLEMAN))
568 ("Error: %s can't be used as the final remailer of a chain."),
569 type2_list[chain->ch[chain->cl - 1]]->shortname);
577 case OP_GENERIC_SELECT_ENTRY:
580 if (chain->cl < MAXMIXES && c_cur < chain->cl)
586 if (chain->cl < MAXMIXES) {
588 for (i = chain->cl - 1; i > c_cur; i--)
589 chain->ch[i] = chain->ch[i - 1];
591 chain->ch[c_cur] = menu->current;
592 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
596 mutt_error (_("Mixmaster chains are limited to %d elements."),
607 for (i = c_cur; i < chain->cl; i++)
608 chain->ch[i] = chain->ch[i + 1];
610 if (c_cur == chain->cl && c_cur)
613 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
617 mutt_error _("The remailer chain is already empty.");
622 case OP_MIX_CHAIN_PREV:
627 mutt_error _("You already have the first chain element selected.");
632 case OP_MIX_CHAIN_NEXT:
634 if (chain->cl && c_cur < chain->cl - 1)
637 mutt_error _("You already have the last chain element selected.");
644 mutt_menuDestroy (&menu);
646 /* construct the remailer list */
649 for (i = 0; i < chain->cl; i++) {
650 if ((j = chain->ch[i]))
651 t = type2_list[j]->shortname;
655 *chainp = mutt_add_list (*chainp, t);
659 mix_free_type2_list (&type2_list);
664 /* some safety checks before piping the message to mixmaster */
666 int mix_check_message (HEADER * msg)
669 short need_hostname = 0;
672 if (msg->env->cc || msg->env->bcc) {
673 mutt_error _("Mixmaster doesn't accept Cc or Bcc headers.");
678 /* When using mixmaster, we MUST qualify any addresses since
679 * the message will be delivered through remote systems.
681 * use_domain won't be respected at this point, hidden_host will.
684 for (p = msg->env->to; p; p = p->next) {
685 if (!p->group && strchr (p->mailbox, '@') == NULL) {
693 if (!(fqdn = mutt_fqdn (1))) {
696 ("Please set the hostname variable to a proper value when using mixmaster!");
700 /* Cc and Bcc are empty at this point. */
701 rfc822_qualify (msg->env->to, fqdn);
702 rfc822_qualify (msg->env->reply_to, fqdn);
703 rfc822_qualify (msg->env->mail_followup_to, fqdn);
709 int mix_send_message (LIST * chain, const char *tempfile)
711 char cmd[HUGE_STRING];
712 char tmp[HUGE_STRING];
713 char cd_quoted[STRING];
716 snprintf (cmd, sizeof (cmd), "cat %s | %s -m ", tempfile, Mixmaster);
718 for (i = 0; chain; chain = chain->next, i = 1) {
719 strfcpy (tmp, cmd, sizeof (tmp));
720 mutt_quote_filename (cd_quoted, sizeof (cd_quoted), (char *) chain->data);
721 snprintf (cmd, sizeof (cmd), "%s%s%s", tmp, i ? "," : " -l ", cd_quoted);
724 if (!option (OPTNOCURSES))
727 if ((i = mutt_system (cmd))) {
728 fprintf (stderr, _("Error sending message, child exited %d.\n"), i);
729 if (!option (OPTNOCURSES)) {
730 mutt_any_key_to_continue (NULL);
731 mutt_error _("Error sending message.");