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"
21 #include "mutt_regex.h"
30 #include <sys/types.h>
40 static REMAILER **mix_type2_list (size_t * l);
41 static REMAILER *mix_new_remailer (void);
42 static const char *mix_format_caps (REMAILER * r);
43 static int mix_chain_add (MIXCHAIN * chain, const char *s,
44 REMAILER ** type2_list);
45 static int mix_get_caps (const char *capstr);
46 static void mix_add_entry (REMAILER ***, REMAILER *, size_t *, size_t *);
47 static void mix_entry (char *b, size_t blen, MUTTMENU * menu, int num);
48 static void mix_free_remailer (REMAILER ** r);
49 static void mix_free_type2_list (REMAILER *** ttlp);
50 static void mix_redraw_ce (REMAILER ** type2_list, struct coord *coords,
51 MIXCHAIN * chain, int i, short selected);
52 static void mix_redraw_chain (REMAILER ** type2_list, struct coord *coords,
53 MIXCHAIN * chain, int cur);
54 static void mix_redraw_head (MIXCHAIN *);
55 static void mix_screen_coordinates (REMAILER ** type2_list, struct coord **,
58 static int mix_get_caps (const char *capstr)
65 caps |= MIX_CAP_COMPRESS;
69 caps |= MIX_CAP_MIDDLEMAN;
76 caps |= MIX_CAP_NEWSMAIL;
80 caps |= MIX_CAP_NEWSPOST;
94 static void mix_add_entry (REMAILER *** type2_list, REMAILER * entry,
95 size_t * slots, size_t * used)
97 if (*used == *slots) {
99 safe_realloc (type2_list, sizeof (REMAILER *) * (*slots));
102 (*type2_list)[(*used)++] = entry;
107 static REMAILER *mix_new_remailer (void)
109 return safe_calloc (1, sizeof (REMAILER));
112 static void mix_free_remailer (REMAILER ** r)
114 FREE (&(*r)->shortname);
121 /* parse the type2.list as given by mixmaster -T */
123 static REMAILER **mix_type2_list (size_t * l)
129 char cmd[HUGE_STRING + _POSIX_PATH_MAX];
130 char line[HUGE_STRING];
133 REMAILER **type2_list = NULL, *p;
134 size_t slots = 0, used = 0;
139 if ((devnull = open ("/dev/null", O_RDWR)) == -1)
142 snprintf (cmd, sizeof (cmd), "%s -T", Mixmaster);
145 mutt_create_filter_fd (cmd, NULL, &fp, NULL, devnull, -1,
151 /* first, generate the "random" remailer */
153 p = mix_new_remailer ();
154 p->shortname = safe_strdup ("<random>");
155 mix_add_entry (&type2_list, p, &slots, &used);
157 while (fgets (line, sizeof (line), fp)) {
158 p = mix_new_remailer ();
160 if (!(t = strtok (line, " \t\n")))
163 p->shortname = safe_strdup (t);
165 if (!(t = strtok (NULL, " \t\n")))
168 p->addr = safe_strdup (t);
170 if (!(t = strtok (NULL, " \t\n")))
173 if (!(t = strtok (NULL, " \t\n")))
176 p->ver = safe_strdup (t);
178 if (!(t = strtok (NULL, " \t\n")))
181 p->caps = mix_get_caps (t);
183 mix_add_entry (&type2_list, p, &slots, &used);
187 mix_free_remailer (&p);
192 mix_add_entry (&type2_list, NULL, &slots, &used);
193 mutt_wait_filter (mm_pid);
200 static void mix_free_type2_list (REMAILER *** ttlp)
203 REMAILER **type2_list = *ttlp;
205 for (i = 0; type2_list[i]; i++)
206 mix_free_remailer (&type2_list[i]);
212 #define MIX_HOFFSET 2
213 #define MIX_VOFFSET (LINES - 6)
214 #define MIX_MAXROW (LINES - 3)
217 static void mix_screen_coordinates (REMAILER ** type2_list,
218 struct coord **coordsp,
219 MIXCHAIN * chain, int i)
222 struct coord *coords;
227 safe_realloc (coordsp, sizeof (struct coord) * chain->cl);
233 coords[i - 1].c + strlen (type2_list[chain->ch[i - 1]]->shortname) + 2;
242 for (; i < chain->cl; i++) {
244 c += strlen (type2_list[chain->ch[i]]->shortname) + 2;
247 oc = c = MIX_HOFFSET;
258 static void mix_redraw_ce (REMAILER ** type2_list,
259 struct coord *coords,
260 MIXCHAIN * chain, int i, short selected)
262 if (!coords || !chain)
265 if (coords[i].r < MIX_MAXROW) {
268 SETCOLOR (MT_COLOR_INDICATOR);
270 SETCOLOR (MT_COLOR_NORMAL);
272 mvaddstr (coords[i].r, coords[i].c, type2_list[chain->ch[i]]->shortname);
273 SETCOLOR (MT_COLOR_NORMAL);
275 if (i + 1 < chain->cl)
280 static void mix_redraw_chain (REMAILER ** type2_list,
281 struct coord *coords, MIXCHAIN * chain, int cur)
285 SETCOLOR (MT_COLOR_NORMAL);
286 BKGDSET (MT_COLOR_NORMAL);
288 for (i = MIX_VOFFSET; i < MIX_MAXROW; i++) {
293 for (i = 0; i < chain->cl; i++)
294 mix_redraw_ce (type2_list, coords, chain, i, i == cur);
297 static void mix_redraw_head (MIXCHAIN * chain)
299 SETCOLOR (MT_COLOR_STATUS);
300 mvprintw (MIX_VOFFSET - 1, 0, "-- Remailer chain [Length: %d]",
301 chain ? chain->cl : 0);
303 BKGDSET (MT_COLOR_STATUS);
306 BKGDSET (MT_COLOR_NORMAL);
307 SETCOLOR (MT_COLOR_NORMAL);
310 static const char *mix_format_caps (REMAILER * r)
312 static char capbuff[10];
315 if (r->caps & MIX_CAP_COMPRESS)
320 if (r->caps & MIX_CAP_MIDDLEMAN)
325 if (r->caps & MIX_CAP_NEWSPOST) {
334 if (r->caps & MIX_CAP_NEWSMAIL) {
349 * Format an entry for the remailer menu.
358 static const char *mix_entry_fmt (char *dest,
363 const char *ifstring,
364 const char *elsestring,
365 unsigned long data, format_flag flags)
368 REMAILER *remailer = (REMAILER *) data;
369 int optional = (flags & M_FORMAT_OPTIONAL);
374 snprintf (fmt, sizeof (fmt), "%%%sd", prefix);
375 snprintf (dest, destlen, fmt, remailer->num);
380 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
381 snprintf (dest, destlen, fmt, mix_format_caps (remailer));
386 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
387 snprintf (dest, destlen, fmt, NONULL (remailer->shortname));
389 else if (!remailer->shortname)
394 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
395 snprintf (dest, destlen, fmt, NONULL (remailer->addr));
397 else if (!remailer->addr)
406 mutt_FormatString (dest, destlen, ifstring, mutt_attach_fmt, data, 0);
407 else if (flags & M_FORMAT_OPTIONAL)
408 mutt_FormatString (dest, destlen, elsestring, mutt_attach_fmt, data, 0);
414 static void mix_entry (char *b, size_t blen, MUTTMENU * menu, int num)
416 REMAILER **type2_list = (REMAILER **) menu->data;
418 mutt_FormatString (b, blen, NONULL (MixEntryFormat), mix_entry_fmt,
419 (unsigned long) type2_list[num], M_FORMAT_ARROWCURSOR);
422 static int mix_chain_add (MIXCHAIN * chain, const char *s,
423 REMAILER ** type2_list)
427 if (chain->cl >= MAXMIXES)
430 if (!mutt_strcmp (s, "0") || !ascii_strcasecmp (s, "<random>")) {
431 chain->ch[chain->cl++] = 0;
435 for (i = 0; type2_list[i]; i++) {
436 if (!ascii_strcasecmp (s, type2_list[i]->shortname)) {
437 chain->ch[chain->cl++] = i;
442 /* replace unknown remailers by <random> */
445 chain->ch[chain->cl++] = 0;
450 static struct mapping_t RemailerHelp[] = {
451 {N_("Append"), OP_MIX_APPEND},
452 {N_("Insert"), OP_MIX_INSERT},
453 {N_("Delete"), OP_MIX_DELETE},
454 {N_("Abort"), OP_EXIT},
455 {N_("OK"), OP_MIX_USE},
460 void mix_make_chain (LIST ** chainp, int *redraw)
464 int c_cur = 0, c_old = 0;
468 REMAILER **type2_list = NULL;
471 struct coord *coords = NULL;
474 char helpstr[SHORT_STRING];
481 if (!(type2_list = mix_type2_list (&ttll))) {
482 mutt_error _("Can't get mixmaster's type2.list!");
487 *redraw = REDRAW_FULL;
489 chain = safe_calloc (sizeof (MIXCHAIN), 1);
490 for (p = *chainp; p; p = p->next)
491 mix_chain_add (chain, (char *) p->data, type2_list);
493 mutt_free_list (chainp);
496 for (i = 0; i < chain->cl; i++) {
497 if (chain->ch[i] >= ttll)
501 mix_screen_coordinates (type2_list, &coords, chain, 0);
503 menu = mutt_new_menu ();
504 menu->menu = MENU_MIX;
506 menu->make_entry = mix_entry;
508 menu->title = _("Select a remailer chain.");
509 menu->data = type2_list;
511 mutt_compile_help (helpstr, sizeof (helpstr), MENU_MIX, RemailerHelp);
513 m_len = menu->pagelen = MIX_VOFFSET - menu->offset - 1;
516 if (menu->pagelen != m_len) {
517 menu->pagelen = m_len;
518 menu->redraw = REDRAW_FULL;
522 mix_redraw_head (chain);
523 mix_redraw_chain (type2_list, coords, chain, c_cur);
526 else if (c_cur != c_old) {
527 mix_redraw_ce (type2_list, coords, chain, c_old, 0);
528 mix_redraw_ce (type2_list, coords, chain, c_cur, 1);
533 switch ((op = mutt_menuLoop (menu))) {
536 menu_redraw_status (menu);
537 mix_redraw_head (chain);
538 mix_screen_coordinates (type2_list, &coords, chain, 0);
539 mix_redraw_chain (type2_list, coords, chain, c_cur);
540 menu->pagelen = m_len = MIX_VOFFSET - menu->offset - 1;
555 chain->ch[0] = menu->current;
556 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
560 if (chain->cl && chain->ch[chain->cl - 1] &&
561 (type2_list[chain->ch[chain->cl - 1]]->caps & MIX_CAP_MIDDLEMAN))
564 ("Error: %s can't be used as the final remailer of a chain."),
565 type2_list[chain->ch[chain->cl - 1]]->shortname);
573 case OP_GENERIC_SELECT_ENTRY:
576 if (chain->cl < MAXMIXES && c_cur < chain->cl)
582 if (chain->cl < MAXMIXES) {
584 for (i = chain->cl - 1; i > c_cur; i--)
585 chain->ch[i] = chain->ch[i - 1];
587 chain->ch[c_cur] = menu->current;
588 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
592 mutt_error (_("Mixmaster chains are limited to %d elements."),
603 for (i = c_cur; i < chain->cl; i++)
604 chain->ch[i] = chain->ch[i + 1];
606 if (c_cur == chain->cl && c_cur)
609 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
613 mutt_error _("The remailer chain is already empty.");
618 case OP_MIX_CHAIN_PREV:
623 mutt_error _("You already have the first chain element selected.");
628 case OP_MIX_CHAIN_NEXT:
630 if (chain->cl && c_cur < chain->cl - 1)
633 mutt_error _("You already have the last chain element selected.");
640 mutt_menuDestroy (&menu);
642 /* construct the remailer list */
645 for (i = 0; i < chain->cl; i++) {
646 if ((j = chain->ch[i]))
647 t = type2_list[j]->shortname;
651 *chainp = mutt_add_list (*chainp, t);
655 mix_free_type2_list (&type2_list);
660 /* some safety checks before piping the message to mixmaster */
662 int mix_check_message (HEADER * msg)
665 short need_hostname = 0;
668 if (msg->env->cc || msg->env->bcc) {
669 mutt_error _("Mixmaster doesn't accept Cc or Bcc headers.");
674 /* When using mixmaster, we MUST qualify any addresses since
675 * the message will be delivered through remote systems.
677 * use_domain won't be respected at this point, hidden_host will.
680 for (p = msg->env->to; p; p = p->next) {
681 if (!p->group && strchr (p->mailbox, '@') == NULL) {
689 if (!(fqdn = mutt_fqdn (1))) {
692 ("Please set the hostname variable to a proper value when using mixmaster!");
696 /* Cc and Bcc are empty at this point. */
697 rfc822_qualify (msg->env->to, fqdn);
698 rfc822_qualify (msg->env->reply_to, fqdn);
699 rfc822_qualify (msg->env->mail_followup_to, fqdn);
705 int mix_send_message (LIST * chain, const char *tempfile)
707 char cmd[HUGE_STRING];
708 char tmp[HUGE_STRING];
709 char cd_quoted[STRING];
712 snprintf (cmd, sizeof (cmd), "cat %s | %s -m ", tempfile, Mixmaster);
714 for (i = 0; chain; chain = chain->next, i = 1) {
715 strfcpy (tmp, cmd, sizeof (tmp));
716 mutt_quote_filename (cd_quoted, sizeof (cd_quoted), (char *) chain->data);
717 snprintf (cmd, sizeof (cmd), "%s%s%s", tmp, i ? "," : " -l ", cd_quoted);
720 if (!option (OPTNOCURSES))
723 if ((i = mutt_system (cmd))) {
724 fprintf (stderr, _("Error sending message, child exited %d.\n"), i);
725 if (!option (OPTNOCURSES)) {
726 mutt_any_key_to_continue (NULL);
727 mutt_error _("Error sending message.");