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 "recvattach.h"
20 #include "mutt_curses.h"
21 #include "mutt_menu.h"
35 #include <sys/types.h>
45 static REMAILER **mix_type2_list (size_t * l);
46 static REMAILER *mix_new_remailer (void);
47 static const char *mix_format_caps (REMAILER * r);
48 static int mix_chain_add (MIXCHAIN * chain, const char *s,
49 REMAILER ** type2_list);
50 static int mix_get_caps (const char *capstr);
51 static void mix_add_entry (REMAILER ***, REMAILER *, size_t *, size_t *);
52 static void mix_entry (char *b, size_t blen, MUTTMENU * menu, int num);
53 static void mix_free_remailer (REMAILER ** r);
54 static void mix_free_type2_list (REMAILER *** ttlp);
55 static void mix_redraw_ce (REMAILER ** type2_list, struct coord *coords,
56 MIXCHAIN * chain, int i, short selected);
57 static void mix_redraw_chain (REMAILER ** type2_list, struct coord *coords,
58 MIXCHAIN * chain, int cur);
59 static void mix_redraw_head (MIXCHAIN *);
60 static void mix_screen_coordinates (REMAILER ** type2_list, struct coord **,
63 static int mix_get_caps (const char *capstr)
70 caps |= MIX_CAP_COMPRESS;
74 caps |= MIX_CAP_MIDDLEMAN;
81 caps |= MIX_CAP_NEWSMAIL;
85 caps |= MIX_CAP_NEWSPOST;
99 static void mix_add_entry (REMAILER *** type2_list, REMAILER * entry,
100 size_t * slots, size_t * used)
102 if (*used == *slots) {
104 mem_realloc (type2_list, sizeof (REMAILER *) * (*slots));
107 (*type2_list)[(*used)++] = entry;
112 static REMAILER *mix_new_remailer (void)
114 return mem_calloc (1, sizeof (REMAILER));
117 static void mix_free_remailer (REMAILER ** r)
119 mem_free (&(*r)->shortname);
120 mem_free (&(*r)->addr);
121 mem_free (&(*r)->ver);
126 /* parse the type2.list as given by mixmaster -T */
128 static REMAILER **mix_type2_list (size_t * l)
134 char cmd[HUGE_STRING + _POSIX_PATH_MAX];
135 char line[HUGE_STRING];
138 REMAILER **type2_list = NULL, *p;
139 size_t slots = 0, used = 0;
144 if ((devnull = open ("/dev/null", O_RDWR)) == -1)
147 snprintf (cmd, sizeof (cmd), "%s -T", Mixmaster);
150 mutt_create_filter_fd (cmd, NULL, &fp, NULL, devnull, -1,
156 /* first, generate the "random" remailer */
158 p = mix_new_remailer ();
159 p->shortname = str_dup ("<random>");
160 mix_add_entry (&type2_list, p, &slots, &used);
162 while (fgets (line, sizeof (line), fp)) {
163 p = mix_new_remailer ();
165 if (!(t = strtok (line, " \t\n")))
168 p->shortname = str_dup (t);
170 if (!(t = strtok (NULL, " \t\n")))
173 p->addr = str_dup (t);
175 if (!(t = strtok (NULL, " \t\n")))
178 if (!(t = strtok (NULL, " \t\n")))
181 p->ver = str_dup (t);
183 if (!(t = strtok (NULL, " \t\n")))
186 p->caps = mix_get_caps (t);
188 mix_add_entry (&type2_list, p, &slots, &used);
192 mix_free_remailer (&p);
197 mix_add_entry (&type2_list, NULL, &slots, &used);
198 mutt_wait_filter (mm_pid);
205 static void mix_free_type2_list (REMAILER *** ttlp)
208 REMAILER **type2_list = *ttlp;
210 for (i = 0; type2_list[i]; i++)
211 mix_free_remailer (&type2_list[i]);
213 mem_free (type2_list);
217 #define MIX_HOFFSET 2
218 #define MIX_VOFFSET (LINES - 6)
219 #define MIX_MAXROW (LINES - 3)
222 static void mix_screen_coordinates (REMAILER ** type2_list,
223 struct coord **coordsp,
224 MIXCHAIN * chain, int i)
227 struct coord *coords;
232 mem_realloc (coordsp, sizeof (struct coord) * chain->cl);
238 coords[i - 1].c + str_len (type2_list[chain->ch[i - 1]]->shortname) + 2;
247 for (; i < chain->cl; i++) {
249 c += str_len (type2_list[chain->ch[i]]->shortname) + 2;
252 oc = c = MIX_HOFFSET;
263 static void mix_redraw_ce (REMAILER ** type2_list,
264 struct coord *coords,
265 MIXCHAIN * chain, int i, short selected)
267 if (!coords || !chain)
270 if (coords[i].r < MIX_MAXROW) {
273 SETCOLOR (MT_COLOR_INDICATOR);
275 SETCOLOR (MT_COLOR_NORMAL);
277 mvaddstr (coords[i].r, coords[i].c, type2_list[chain->ch[i]]->shortname);
278 SETCOLOR (MT_COLOR_NORMAL);
280 if (i + 1 < chain->cl)
285 static void mix_redraw_chain (REMAILER ** type2_list,
286 struct coord *coords, MIXCHAIN * chain, int cur)
290 SETCOLOR (MT_COLOR_NORMAL);
291 BKGDSET (MT_COLOR_NORMAL);
293 for (i = MIX_VOFFSET; i < MIX_MAXROW; i++) {
298 for (i = 0; i < chain->cl; i++)
299 mix_redraw_ce (type2_list, coords, chain, i, i == cur);
302 static void mix_redraw_head (MIXCHAIN * chain)
304 SETCOLOR (MT_COLOR_STATUS);
305 mvprintw (MIX_VOFFSET - 1, 0, "-- Remailer chain [Length: %d]",
306 chain ? chain->cl : 0);
308 BKGDSET (MT_COLOR_STATUS);
311 BKGDSET (MT_COLOR_NORMAL);
312 SETCOLOR (MT_COLOR_NORMAL);
315 static const char *mix_format_caps (REMAILER * r)
317 static char capbuff[10];
320 if (r->caps & MIX_CAP_COMPRESS)
325 if (r->caps & MIX_CAP_MIDDLEMAN)
330 if (r->caps & MIX_CAP_NEWSPOST) {
339 if (r->caps & MIX_CAP_NEWSMAIL) {
354 * Format an entry for the remailer menu.
363 static const char *mix_entry_fmt (char *dest,
368 const char *ifstring,
369 const char *elsestring,
370 unsigned long data, format_flag flags)
373 REMAILER *remailer = (REMAILER *) data;
374 int optional = (flags & M_FORMAT_OPTIONAL);
379 snprintf (fmt, sizeof (fmt), "%%%sd", prefix);
380 snprintf (dest, destlen, fmt, remailer->num);
385 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
386 snprintf (dest, destlen, fmt, mix_format_caps (remailer));
391 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
392 snprintf (dest, destlen, fmt, NONULL (remailer->shortname));
394 else if (!remailer->shortname)
399 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
400 snprintf (dest, destlen, fmt, NONULL (remailer->addr));
402 else if (!remailer->addr)
411 mutt_FormatString (dest, destlen, ifstring, mutt_attach_fmt, data, 0);
412 else if (flags & M_FORMAT_OPTIONAL)
413 mutt_FormatString (dest, destlen, elsestring, mutt_attach_fmt, data, 0);
419 static void mix_entry (char *b, size_t blen, MUTTMENU * menu, int num)
421 REMAILER **type2_list = (REMAILER **) menu->data;
423 mutt_FormatString (b, blen, NONULL (MixEntryFormat), mix_entry_fmt,
424 (unsigned long) type2_list[num], M_FORMAT_ARROWCURSOR);
427 static int mix_chain_add (MIXCHAIN * chain, const char *s,
428 REMAILER ** type2_list)
432 if (chain->cl >= MAXMIXES)
435 if (!str_cmp (s, "0") || !ascii_strcasecmp (s, "<random>")) {
436 chain->ch[chain->cl++] = 0;
440 for (i = 0; type2_list[i]; i++) {
441 if (!ascii_strcasecmp (s, type2_list[i]->shortname)) {
442 chain->ch[chain->cl++] = i;
447 /* replace unknown remailers by <random> */
450 chain->ch[chain->cl++] = 0;
455 static struct mapping_t RemailerHelp[] = {
456 {N_("Append"), OP_MIX_APPEND},
457 {N_("Insert"), OP_MIX_INSERT},
458 {N_("Delete"), OP_MIX_DELETE},
459 {N_("Abort"), OP_EXIT},
460 {N_("OK"), OP_MIX_USE},
465 void mix_make_chain (LIST ** chainp, int *redraw)
469 int c_cur = 0, c_old = 0;
473 REMAILER **type2_list = NULL;
476 struct coord *coords = NULL;
479 char helpstr[SHORT_STRING];
486 if (!(type2_list = mix_type2_list (&ttll))) {
487 mutt_error _("Can't get mixmaster's type2.list!");
492 *redraw = REDRAW_FULL;
494 chain = mem_calloc (sizeof (MIXCHAIN), 1);
495 for (p = *chainp; p; p = p->next)
496 mix_chain_add (chain, (char *) p->data, type2_list);
498 mutt_free_list (chainp);
501 for (i = 0; i < chain->cl; i++) {
502 if (chain->ch[i] >= ttll)
506 mix_screen_coordinates (type2_list, &coords, chain, 0);
508 menu = mutt_new_menu ();
509 menu->menu = MENU_MIX;
511 menu->make_entry = mix_entry;
513 menu->title = _("Select a remailer chain.");
514 menu->data = type2_list;
516 mutt_compile_help (helpstr, sizeof (helpstr), MENU_MIX, RemailerHelp);
518 m_len = menu->pagelen = MIX_VOFFSET - menu->offset - 1;
521 if (menu->pagelen != m_len) {
522 menu->pagelen = m_len;
523 menu->redraw = REDRAW_FULL;
527 mix_redraw_head (chain);
528 mix_redraw_chain (type2_list, coords, chain, c_cur);
531 else if (c_cur != c_old) {
532 mix_redraw_ce (type2_list, coords, chain, c_old, 0);
533 mix_redraw_ce (type2_list, coords, chain, c_cur, 1);
538 switch ((op = mutt_menuLoop (menu))) {
541 menu_redraw_status (menu);
542 mix_redraw_head (chain);
543 mix_screen_coordinates (type2_list, &coords, chain, 0);
544 mix_redraw_chain (type2_list, coords, chain, c_cur);
545 menu->pagelen = m_len = MIX_VOFFSET - menu->offset - 1;
560 chain->ch[0] = menu->current;
561 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
565 if (chain->cl && chain->ch[chain->cl - 1] &&
566 (type2_list[chain->ch[chain->cl - 1]]->caps & MIX_CAP_MIDDLEMAN))
569 ("Error: %s can't be used as the final remailer of a chain."),
570 type2_list[chain->ch[chain->cl - 1]]->shortname);
578 case OP_GENERIC_SELECT_ENTRY:
581 if (chain->cl < MAXMIXES && c_cur < chain->cl)
587 if (chain->cl < MAXMIXES) {
589 for (i = chain->cl - 1; i > c_cur; i--)
590 chain->ch[i] = chain->ch[i - 1];
592 chain->ch[c_cur] = menu->current;
593 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
597 mutt_error (_("Mixmaster chains are limited to %d elements."),
608 for (i = c_cur; i < chain->cl; i++)
609 chain->ch[i] = chain->ch[i + 1];
611 if (c_cur == chain->cl && c_cur)
614 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
618 mutt_error _("The remailer chain is already empty.");
623 case OP_MIX_CHAIN_PREV:
628 mutt_error _("You already have the first chain element selected.");
633 case OP_MIX_CHAIN_NEXT:
635 if (chain->cl && c_cur < chain->cl - 1)
638 mutt_error _("You already have the last chain element selected.");
645 mutt_menuDestroy (&menu);
647 /* construct the remailer list */
650 for (i = 0; i < chain->cl; i++) {
651 if ((j = chain->ch[i]))
652 t = type2_list[j]->shortname;
656 *chainp = mutt_add_list (*chainp, t);
660 mix_free_type2_list (&type2_list);
665 /* some safety checks before piping the message to mixmaster */
667 int mix_check_message (HEADER * msg)
670 short need_hostname = 0;
673 if (msg->env->cc || msg->env->bcc) {
674 mutt_error _("Mixmaster doesn't accept Cc or Bcc headers.");
679 /* When using mixmaster, we MUST qualify any addresses since
680 * the message will be delivered through remote systems.
682 * use_domain won't be respected at this point, hidden_host will.
685 for (p = msg->env->to; p; p = p->next) {
686 if (!p->group && strchr (p->mailbox, '@') == NULL) {
694 if (!(fqdn = mutt_fqdn (1))) {
697 ("Please set the hostname variable to a proper value when using mixmaster!");
701 /* Cc and Bcc are empty at this point. */
702 rfc822_qualify (msg->env->to, fqdn);
703 rfc822_qualify (msg->env->reply_to, fqdn);
704 rfc822_qualify (msg->env->mail_followup_to, fqdn);
710 int mix_send_message (LIST * chain, const char *tempfile)
712 char cmd[HUGE_STRING];
713 char tmp[HUGE_STRING];
714 char cd_quoted[STRING];
717 snprintf (cmd, sizeof (cmd), "cat %s | %s -m ", tempfile, Mixmaster);
719 for (i = 0; chain; chain = chain->next, i = 1) {
720 strfcpy (tmp, cmd, sizeof (tmp));
721 mutt_quote_filename (cd_quoted, sizeof (cd_quoted), (char *) chain->data);
722 snprintf (cmd, sizeof (cmd), "%s%s%s", tmp, i ? "," : " -l ", cd_quoted);
725 if (!option (OPTNOCURSES))
728 if ((i = mutt_system (cmd))) {
729 fprintf (stderr, _("Error sending message, child exited %d.\n"), i);
730 if (!option (OPTNOCURSES)) {
731 mutt_any_key_to_continue (NULL);
732 mutt_error _("Error sending message.");