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
18 #include <lib-lib/mem.h>
19 #include <lib-lib/macros.h>
22 #include "recvattach.h"
23 #include "mutt_curses.h"
24 #include "mutt_menu.h"
36 #include <sys/types.h>
40 #define SW (option(OPTMBOXPANE)?SidebarWidth:0)
48 static REMAILER **mix_type2_list (size_t * l);
49 static REMAILER *mix_new_remailer (void);
50 static const char *mix_format_caps (REMAILER * r);
51 static int mix_chain_add (MIXCHAIN * chain, const char *s,
52 REMAILER ** type2_list);
53 static int mix_get_caps (const char *capstr);
54 static void mix_add_entry (REMAILER ***, REMAILER *, size_t *, size_t *);
55 static void mix_entry (char *b, size_t blen, MUTTMENU * menu, int num);
56 static void mix_free_remailer (REMAILER ** r);
57 static void mix_free_type2_list (REMAILER *** ttlp);
58 static void mix_redraw_ce (REMAILER ** type2_list, struct coord *coords,
59 MIXCHAIN * chain, int i, short selected);
60 static void mix_redraw_chain (REMAILER ** type2_list, struct coord *coords,
61 MIXCHAIN * chain, int cur);
62 static void mix_redraw_head (MIXCHAIN *);
63 static void mix_screen_coordinates (REMAILER ** type2_list, struct coord **,
66 static int mix_get_caps (const char *capstr)
73 caps |= MIX_CAP_COMPRESS;
77 caps |= MIX_CAP_MIDDLEMAN;
84 caps |= MIX_CAP_NEWSMAIL;
88 caps |= MIX_CAP_NEWSPOST;
102 static void mix_add_entry (REMAILER *** type2_list, REMAILER * entry,
103 size_t * slots, size_t * used)
105 if (*used == *slots) {
107 p_realloc(type2_list, *slots);
110 (*type2_list)[(*used)++] = entry;
115 static REMAILER *mix_new_remailer (void)
117 return p_new(REMAILER, 1);
120 static void mix_free_remailer (REMAILER ** r)
122 p_delete(&(*r)->shortname);
123 p_delete(&(*r)->addr);
124 p_delete(&(*r)->ver);
129 /* parse the type2.list as given by mixmaster -T */
131 static REMAILER **mix_type2_list (size_t * l)
137 char cmd[HUGE_STRING + _POSIX_PATH_MAX];
138 char line[HUGE_STRING];
141 REMAILER **type2_list = NULL, *p;
142 size_t slots = 0, used = 0;
147 if ((devnull = open ("/dev/null", O_RDWR)) == -1)
150 snprintf (cmd, sizeof (cmd), "%s -T", Mixmaster);
153 mutt_create_filter_fd (cmd, NULL, &fp, NULL, devnull, -1,
159 /* first, generate the "random" remailer */
161 p = mix_new_remailer ();
162 p->shortname = str_dup ("<random>");
163 mix_add_entry (&type2_list, p, &slots, &used);
165 while (fgets (line, sizeof (line), fp)) {
166 p = mix_new_remailer ();
168 if (!(t = strtok (line, " \t\n")))
171 p->shortname = str_dup (t);
173 if (!(t = strtok (NULL, " \t\n")))
176 p->addr = str_dup (t);
178 if (!(t = strtok (NULL, " \t\n")))
181 if (!(t = strtok (NULL, " \t\n")))
184 p->ver = str_dup (t);
186 if (!(t = strtok (NULL, " \t\n")))
189 p->caps = mix_get_caps (t);
191 mix_add_entry (&type2_list, p, &slots, &used);
195 mix_free_remailer (&p);
200 mix_add_entry (&type2_list, NULL, &slots, &used);
201 mutt_wait_filter (mm_pid);
208 static void mix_free_type2_list (REMAILER *** ttlp)
211 REMAILER **type2_list = *ttlp;
213 for (i = 0; type2_list[i]; i++)
214 mix_free_remailer (&type2_list[i]);
216 p_delete(type2_list);
220 #define MIX_HOFFSET 2
221 #define MIX_VOFFSET (LINES - 6)
222 #define MIX_MAXROW (LINES - 3)
225 static void mix_screen_coordinates (REMAILER ** type2_list,
226 struct coord **coordsp,
227 MIXCHAIN * chain, int i)
230 struct coord *coords;
235 p_realloc(coordsp, chain->cl);
241 coords[i - 1].c + str_len (type2_list[chain->ch[i - 1]]->shortname) + 2;
250 for (; i < chain->cl; i++) {
252 c += str_len (type2_list[chain->ch[i]]->shortname) + 2;
255 oc = c = MIX_HOFFSET;
266 static void mix_redraw_ce (REMAILER ** type2_list,
267 struct coord *coords,
268 MIXCHAIN * chain, int i, short selected)
270 if (!coords || !chain)
273 if (coords[i].r < MIX_MAXROW) {
276 SETCOLOR (MT_COLOR_INDICATOR);
278 SETCOLOR (MT_COLOR_NORMAL);
280 mvaddstr (coords[i].r, coords[i].c, type2_list[chain->ch[i]]->shortname);
281 SETCOLOR (MT_COLOR_NORMAL);
283 if (i + 1 < chain->cl)
288 static void mix_redraw_chain (REMAILER ** type2_list,
289 struct coord *coords, MIXCHAIN * chain, int cur)
293 SETCOLOR (MT_COLOR_NORMAL);
294 BKGDSET (MT_COLOR_NORMAL);
296 for (i = MIX_VOFFSET; i < MIX_MAXROW; i++) {
301 for (i = 0; i < chain->cl; i++)
302 mix_redraw_ce (type2_list, coords, chain, i, i == cur);
305 static void mix_redraw_head (MIXCHAIN * chain)
307 SETCOLOR (MT_COLOR_STATUS);
308 mvprintw (MIX_VOFFSET - 1, 0, "-- Remailer chain [Length: %d]",
309 chain ? chain->cl : 0);
311 BKGDSET (MT_COLOR_STATUS);
314 BKGDSET (MT_COLOR_NORMAL);
315 SETCOLOR (MT_COLOR_NORMAL);
318 static const char *mix_format_caps (REMAILER * r)
320 static char capbuff[10];
323 if (r->caps & MIX_CAP_COMPRESS)
328 if (r->caps & MIX_CAP_MIDDLEMAN)
333 if (r->caps & MIX_CAP_NEWSPOST) {
342 if (r->caps & MIX_CAP_NEWSMAIL) {
357 * Format an entry for the remailer menu.
366 static const char *mix_entry_fmt (char *dest,
371 const char *ifstring,
372 const char *elsestring,
373 unsigned long data, format_flag flags)
376 REMAILER *remailer = (REMAILER *) data;
377 int optional = (flags & M_FORMAT_OPTIONAL);
382 snprintf (fmt, sizeof (fmt), "%%%sd", prefix);
383 snprintf (dest, destlen, fmt, remailer->num);
388 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
389 snprintf (dest, destlen, fmt, mix_format_caps (remailer));
394 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
395 snprintf (dest, destlen, fmt, NONULL (remailer->shortname));
397 else if (!remailer->shortname)
402 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
403 snprintf (dest, destlen, fmt, NONULL (remailer->addr));
405 else if (!remailer->addr)
414 mutt_FormatString (dest, destlen, ifstring, mutt_attach_fmt, data, 0);
415 else if (flags & M_FORMAT_OPTIONAL)
416 mutt_FormatString (dest, destlen, elsestring, mutt_attach_fmt, data, 0);
422 static void mix_entry (char *b, size_t blen, MUTTMENU * menu, int num)
424 REMAILER **type2_list = (REMAILER **) menu->data;
425 int w=(COLS-SW)>blen?blen:(COLS-SW);
427 mutt_FormatString (b, w, NONULL (MixEntryFormat), mix_entry_fmt,
428 (unsigned long) type2_list[num], M_FORMAT_ARROWCURSOR);
431 static int mix_chain_add (MIXCHAIN * chain, const char *s,
432 REMAILER ** type2_list)
436 if (chain->cl >= MAXMIXES)
439 if (!str_cmp (s, "0") || !ascii_strcasecmp (s, "<random>")) {
440 chain->ch[chain->cl++] = 0;
444 for (i = 0; type2_list[i]; i++) {
445 if (!ascii_strcasecmp (s, type2_list[i]->shortname)) {
446 chain->ch[chain->cl++] = i;
451 /* replace unknown remailers by <random> */
454 chain->ch[chain->cl++] = 0;
459 static struct mapping_t RemailerHelp[] = {
460 {N_("Append"), OP_MIX_APPEND},
461 {N_("Insert"), OP_MIX_INSERT},
462 {N_("Delete"), OP_MIX_DELETE},
463 {N_("Abort"), OP_EXIT},
464 {N_("OK"), OP_MIX_USE},
469 void mix_make_chain (LIST ** chainp, int *redraw)
473 int c_cur = 0, c_old = 0;
477 REMAILER **type2_list = NULL;
480 struct coord *coords = NULL;
483 char helpstr[SHORT_STRING];
490 if (!(type2_list = mix_type2_list (&ttll))) {
491 mutt_error _("Can't get mixmaster's type2.list!");
496 *redraw = REDRAW_FULL;
498 chain = p_new(MIXCHAIN, 1);
499 for (p = *chainp; p; p = p->next)
500 mix_chain_add (chain, (char *) p->data, type2_list);
502 mutt_free_list (chainp);
505 for (i = 0; i < chain->cl; i++) {
506 if (chain->ch[i] >= ttll)
510 mix_screen_coordinates (type2_list, &coords, chain, 0);
512 menu = mutt_new_menu ();
513 menu->menu = MENU_MIX;
515 menu->make_entry = mix_entry;
517 menu->title = _("Select a remailer chain.");
518 menu->data = type2_list;
520 mutt_compile_help (helpstr, sizeof (helpstr), MENU_MIX, RemailerHelp);
522 m_len = menu->pagelen = MIX_VOFFSET - menu->offset - 1;
525 if (menu->pagelen != m_len) {
526 menu->pagelen = m_len;
527 menu->redraw = REDRAW_FULL;
531 mix_redraw_head (chain);
532 mix_redraw_chain (type2_list, coords, chain, c_cur);
535 else if (c_cur != c_old) {
536 mix_redraw_ce (type2_list, coords, chain, c_old, 0);
537 mix_redraw_ce (type2_list, coords, chain, c_cur, 1);
542 switch ((op = mutt_menuLoop (menu))) {
545 menu_redraw_status (menu);
546 mix_redraw_head (chain);
547 mix_screen_coordinates (type2_list, &coords, chain, 0);
548 mix_redraw_chain (type2_list, coords, chain, c_cur);
549 menu->pagelen = m_len = MIX_VOFFSET - menu->offset - 1;
564 chain->ch[0] = menu->current;
565 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
569 if (chain->cl && chain->ch[chain->cl - 1] &&
570 (type2_list[chain->ch[chain->cl - 1]]->caps & MIX_CAP_MIDDLEMAN))
573 ("Error: %s can't be used as the final remailer of a chain."),
574 type2_list[chain->ch[chain->cl - 1]]->shortname);
582 case OP_GENERIC_SELECT_ENTRY:
585 if (chain->cl < MAXMIXES && c_cur < chain->cl)
591 if (chain->cl < MAXMIXES) {
593 for (i = chain->cl - 1; i > c_cur; i--)
594 chain->ch[i] = chain->ch[i - 1];
596 chain->ch[c_cur] = menu->current;
597 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
601 mutt_error (_("Mixmaster chains are limited to %d elements."),
612 for (i = c_cur; i < chain->cl; i++)
613 chain->ch[i] = chain->ch[i + 1];
615 if (c_cur == chain->cl && c_cur)
618 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
622 mutt_error _("The remailer chain is already empty.");
627 case OP_MIX_CHAIN_PREV:
632 mutt_error _("You already have the first chain element selected.");
637 case OP_MIX_CHAIN_NEXT:
639 if (chain->cl && c_cur < chain->cl - 1)
642 mutt_error _("You already have the last chain element selected.");
649 mutt_menuDestroy (&menu);
651 /* construct the remailer list */
654 for (i = 0; i < chain->cl; i++) {
655 if ((j = chain->ch[i]))
656 t = type2_list[j]->shortname;
660 *chainp = mutt_add_list (*chainp, t);
664 mix_free_type2_list (&type2_list);
669 /* some safety checks before piping the message to mixmaster */
671 int mix_check_message (HEADER * msg)
674 short need_hostname = 0;
677 if (msg->env->cc || msg->env->bcc) {
678 mutt_error _("Mixmaster doesn't accept Cc or Bcc headers.");
683 /* When using mixmaster, we MUST qualify any addresses since
684 * the message will be delivered through remote systems.
686 * use_domain won't be respected at this point, hidden_host will.
689 for (p = msg->env->to; p; p = p->next) {
690 if (!p->group && strchr (p->mailbox, '@') == NULL) {
698 if (!(fqdn = mutt_fqdn (1))) {
701 ("Please set the hostname variable to a proper value when using mixmaster!");
705 /* Cc and Bcc are empty at this point. */
706 rfc822_qualify (msg->env->to, fqdn);
707 rfc822_qualify (msg->env->reply_to, fqdn);
708 rfc822_qualify (msg->env->mail_followup_to, fqdn);
714 int mix_send_message (LIST * chain, const char *tempfile)
716 char cmd[HUGE_STRING];
717 char tmp[HUGE_STRING];
718 char cd_quoted[STRING];
721 snprintf (cmd, sizeof (cmd), "cat %s | %s -m ", tempfile, Mixmaster);
723 for (i = 0; chain; chain = chain->next, i = 1) {
724 strfcpy (tmp, cmd, sizeof (tmp));
725 mutt_quote_filename (cd_quoted, sizeof (cd_quoted), (char *) chain->data);
726 snprintf (cmd, sizeof (cmd), "%s%s%s", tmp, i ? "," : " -l ", cd_quoted);
729 if (!option (OPTNOCURSES))
732 if ((i = mutt_system (cmd))) {
733 fprintf (stderr, _("Error sending message, child exited %d.\n"), i);
734 if (!option (OPTNOCURSES)) {
735 mutt_any_key_to_continue (NULL);
736 mutt_error _("Error sending message.");