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/ascii.h>
20 #include <lib-lib/str.h>
21 #include <lib-lib/macros.h>
22 #include <lib-lib/file.h>
23 #include <lib-lib/mapping.h>
26 #include "recvattach.h"
27 #include "mutt_curses.h"
28 #include "mutt_menu.h"
38 #include <sys/types.h>
42 #define SW (option(OPTMBOXPANE)?SidebarWidth:0)
50 static REMAILER **mix_type2_list (size_t * l);
51 static REMAILER *mix_new_remailer (void);
52 static const char *mix_format_caps (REMAILER * r);
53 static int mix_chain_add (MIXCHAIN * chain, const char *s,
54 REMAILER ** type2_list);
55 static int mix_get_caps (const char *capstr);
56 static void mix_add_entry (REMAILER ***, REMAILER *, size_t *, size_t *);
57 static void mix_entry (char *b, size_t blen, MUTTMENU * menu, int num);
58 static void mix_free_remailer (REMAILER ** r);
59 static void mix_free_type2_list (REMAILER *** ttlp);
60 static void mix_redraw_ce (REMAILER ** type2_list, struct coord *coords,
61 MIXCHAIN * chain, int i, short selected);
62 static void mix_redraw_chain (REMAILER ** type2_list, struct coord *coords,
63 MIXCHAIN * chain, int cur);
64 static void mix_redraw_head (MIXCHAIN *);
65 static void mix_screen_coordinates (REMAILER ** type2_list, struct coord **,
68 static int mix_get_caps (const char *capstr)
75 caps |= MIX_CAP_COMPRESS;
79 caps |= MIX_CAP_MIDDLEMAN;
86 caps |= MIX_CAP_NEWSMAIL;
90 caps |= MIX_CAP_NEWSPOST;
104 static void mix_add_entry (REMAILER *** type2_list, REMAILER * entry,
105 size_t * slots, size_t * used)
107 if (*used == *slots) {
109 p_realloc(type2_list, *slots);
112 (*type2_list)[(*used)++] = entry;
117 static REMAILER *mix_new_remailer (void)
119 return p_new(REMAILER, 1);
122 static void mix_free_remailer (REMAILER ** r)
124 p_delete(&(*r)->shortname);
125 p_delete(&(*r)->addr);
126 p_delete(&(*r)->ver);
131 /* parse the type2.list as given by mixmaster -T */
133 static REMAILER **mix_type2_list (size_t * l)
139 char cmd[HUGE_STRING + _POSIX_PATH_MAX];
140 char line[HUGE_STRING];
143 REMAILER **type2_list = NULL, *p;
144 size_t slots = 0, used = 0;
149 if ((devnull = open ("/dev/null", O_RDWR)) == -1)
152 snprintf (cmd, sizeof (cmd), "%s -T", Mixmaster);
155 mutt_create_filter_fd (cmd, NULL, &fp, NULL, devnull, -1,
161 /* first, generate the "random" remailer */
163 p = mix_new_remailer ();
164 p->shortname = m_strdup("<random>");
165 mix_add_entry (&type2_list, p, &slots, &used);
167 while (fgets (line, sizeof (line), fp)) {
168 p = mix_new_remailer ();
170 if (!(t = strtok (line, " \t\n")))
173 p->shortname = m_strdup(t);
175 if (!(t = strtok (NULL, " \t\n")))
178 p->addr = m_strdup(t);
180 if (!(t = strtok (NULL, " \t\n")))
183 if (!(t = strtok (NULL, " \t\n")))
186 p->ver = m_strdup(t);
188 if (!(t = strtok (NULL, " \t\n")))
191 p->caps = mix_get_caps (t);
193 mix_add_entry (&type2_list, p, &slots, &used);
197 mix_free_remailer (&p);
202 mix_add_entry (&type2_list, NULL, &slots, &used);
203 mutt_wait_filter (mm_pid);
210 static void mix_free_type2_list (REMAILER *** ttlp)
213 REMAILER **type2_list = *ttlp;
215 for (i = 0; type2_list[i]; i++)
216 mix_free_remailer (&type2_list[i]);
218 p_delete(type2_list);
222 #define MIX_HOFFSET 2
223 #define MIX_VOFFSET (LINES - 6)
224 #define MIX_MAXROW (LINES - 3)
227 static void mix_screen_coordinates (REMAILER ** type2_list,
228 struct coord **coordsp,
229 MIXCHAIN * chain, int i)
232 struct coord *coords;
237 p_realloc(coordsp, chain->cl);
243 coords[i - 1].c + m_strlen(type2_list[chain->ch[i - 1]]->shortname) + 2;
252 for (; i < chain->cl; i++) {
254 c += m_strlen(type2_list[chain->ch[i]]->shortname) + 2;
257 oc = c = MIX_HOFFSET;
268 static void mix_redraw_ce (REMAILER ** type2_list,
269 struct coord *coords,
270 MIXCHAIN * chain, int i, short selected)
272 if (!coords || !chain)
275 if (coords[i].r < MIX_MAXROW) {
278 SETCOLOR (MT_COLOR_INDICATOR);
280 SETCOLOR (MT_COLOR_NORMAL);
282 mvaddstr (coords[i].r, coords[i].c, type2_list[chain->ch[i]]->shortname);
283 SETCOLOR (MT_COLOR_NORMAL);
285 if (i + 1 < chain->cl)
290 static void mix_redraw_chain (REMAILER ** type2_list,
291 struct coord *coords, MIXCHAIN * chain, int cur)
295 SETCOLOR (MT_COLOR_NORMAL);
296 BKGDSET (MT_COLOR_NORMAL);
298 for (i = MIX_VOFFSET; i < MIX_MAXROW; i++) {
303 for (i = 0; i < chain->cl; i++)
304 mix_redraw_ce (type2_list, coords, chain, i, i == cur);
307 static void mix_redraw_head (MIXCHAIN * chain)
309 SETCOLOR (MT_COLOR_STATUS);
310 mvprintw (MIX_VOFFSET - 1, 0, "-- Remailer chain [Length: %d]",
311 chain ? chain->cl : 0);
313 BKGDSET (MT_COLOR_STATUS);
316 BKGDSET (MT_COLOR_NORMAL);
317 SETCOLOR (MT_COLOR_NORMAL);
320 static const char *mix_format_caps (REMAILER * r)
322 static char capbuff[10];
325 if (r->caps & MIX_CAP_COMPRESS)
330 if (r->caps & MIX_CAP_MIDDLEMAN)
335 if (r->caps & MIX_CAP_NEWSPOST) {
344 if (r->caps & MIX_CAP_NEWSMAIL) {
359 * Format an entry for the remailer menu.
368 static const char *mix_entry_fmt (char *dest,
373 const char *ifstring,
374 const char *elsestring,
375 unsigned long data, format_flag flags)
378 REMAILER *remailer = (REMAILER *) data;
379 int optional = (flags & M_FORMAT_OPTIONAL);
384 snprintf (fmt, sizeof (fmt), "%%%sd", prefix);
385 snprintf (dest, destlen, fmt, remailer->num);
390 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
391 snprintf (dest, destlen, fmt, mix_format_caps (remailer));
396 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
397 snprintf (dest, destlen, fmt, NONULL (remailer->shortname));
399 else if (!remailer->shortname)
404 snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
405 snprintf (dest, destlen, fmt, NONULL (remailer->addr));
407 else if (!remailer->addr)
416 mutt_FormatString (dest, destlen, ifstring, mutt_attach_fmt, data, 0);
417 else if (flags & M_FORMAT_OPTIONAL)
418 mutt_FormatString (dest, destlen, elsestring, mutt_attach_fmt, data, 0);
424 static void mix_entry (char *b, size_t blen, MUTTMENU * menu, int num)
426 REMAILER **type2_list = (REMAILER **) menu->data;
427 int w=(COLS-SW)>blen?blen:(COLS-SW);
429 mutt_FormatString (b, w, NONULL (MixEntryFormat), mix_entry_fmt,
430 (unsigned long) type2_list[num], M_FORMAT_ARROWCURSOR);
433 static int mix_chain_add (MIXCHAIN * chain, const char *s,
434 REMAILER ** type2_list)
438 if (chain->cl >= MAXMIXES)
441 if (!m_strcmp(s, "0") || !ascii_strcasecmp (s, "<random>")) {
442 chain->ch[chain->cl++] = 0;
446 for (i = 0; type2_list[i]; i++) {
447 if (!ascii_strcasecmp (s, type2_list[i]->shortname)) {
448 chain->ch[chain->cl++] = i;
453 /* replace unknown remailers by <random> */
456 chain->ch[chain->cl++] = 0;
461 static struct mapping_t RemailerHelp[] = {
462 {N_("Append"), OP_MIX_APPEND},
463 {N_("Insert"), OP_MIX_INSERT},
464 {N_("Delete"), OP_MIX_DELETE},
465 {N_("Abort"), OP_EXIT},
466 {N_("OK"), OP_MIX_USE},
471 void mix_make_chain (LIST ** chainp, int *redraw)
475 int c_cur = 0, c_old = 0;
479 REMAILER **type2_list = NULL;
482 struct coord *coords = NULL;
485 char helpstr[SHORT_STRING];
492 if (!(type2_list = mix_type2_list (&ttll))) {
493 mutt_error _("Can't get mixmaster's type2.list!");
498 *redraw = REDRAW_FULL;
500 chain = p_new(MIXCHAIN, 1);
501 for (p = *chainp; p; p = p->next)
502 mix_chain_add (chain, (char *) p->data, type2_list);
504 mutt_free_list (chainp);
507 for (i = 0; i < chain->cl; i++) {
508 if (chain->ch[i] >= ttll)
512 mix_screen_coordinates (type2_list, &coords, chain, 0);
514 menu = mutt_new_menu ();
515 menu->menu = MENU_MIX;
517 menu->make_entry = mix_entry;
519 menu->title = _("Select a remailer chain.");
520 menu->data = type2_list;
522 mutt_compile_help (helpstr, sizeof (helpstr), MENU_MIX, RemailerHelp);
524 m_len = menu->pagelen = MIX_VOFFSET - menu->offset - 1;
527 if (menu->pagelen != m_len) {
528 menu->pagelen = m_len;
529 menu->redraw = REDRAW_FULL;
533 mix_redraw_head (chain);
534 mix_redraw_chain (type2_list, coords, chain, c_cur);
537 else if (c_cur != c_old) {
538 mix_redraw_ce (type2_list, coords, chain, c_old, 0);
539 mix_redraw_ce (type2_list, coords, chain, c_cur, 1);
544 switch ((op = mutt_menuLoop (menu))) {
547 menu_redraw_status (menu);
548 mix_redraw_head (chain);
549 mix_screen_coordinates (type2_list, &coords, chain, 0);
550 mix_redraw_chain (type2_list, coords, chain, c_cur);
551 menu->pagelen = m_len = MIX_VOFFSET - menu->offset - 1;
566 chain->ch[0] = menu->current;
567 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
571 if (chain->cl && chain->ch[chain->cl - 1] &&
572 (type2_list[chain->ch[chain->cl - 1]]->caps & MIX_CAP_MIDDLEMAN))
575 ("Error: %s can't be used as the final remailer of a chain."),
576 type2_list[chain->ch[chain->cl - 1]]->shortname);
584 case OP_GENERIC_SELECT_ENTRY:
587 if (chain->cl < MAXMIXES && c_cur < chain->cl)
593 if (chain->cl < MAXMIXES) {
595 for (i = chain->cl - 1; i > c_cur; i--)
596 chain->ch[i] = chain->ch[i - 1];
598 chain->ch[c_cur] = menu->current;
599 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
603 mutt_error (_("Mixmaster chains are limited to %d elements."),
614 for (i = c_cur; i < chain->cl; i++)
615 chain->ch[i] = chain->ch[i + 1];
617 if (c_cur == chain->cl && c_cur)
620 mix_screen_coordinates (type2_list, &coords, chain, c_cur);
624 mutt_error _("The remailer chain is already empty.");
629 case OP_MIX_CHAIN_PREV:
634 mutt_error _("You already have the first chain element selected.");
639 case OP_MIX_CHAIN_NEXT:
641 if (chain->cl && c_cur < chain->cl - 1)
644 mutt_error _("You already have the last chain element selected.");
651 mutt_menuDestroy (&menu);
653 /* construct the remailer list */
656 for (i = 0; i < chain->cl; i++) {
657 if ((j = chain->ch[i]))
658 t = type2_list[j]->shortname;
662 *chainp = mutt_add_list (*chainp, t);
666 mix_free_type2_list (&type2_list);
671 /* some safety checks before piping the message to mixmaster */
673 int mix_check_message (HEADER * msg)
676 short need_hostname = 0;
679 if (msg->env->cc || msg->env->bcc) {
680 mutt_error _("Mixmaster doesn't accept Cc or Bcc headers.");
685 /* When using mixmaster, we MUST qualify any addresses since
686 * the message will be delivered through remote systems.
688 * use_domain won't be respected at this point, hidden_host will.
691 for (p = msg->env->to; p; p = p->next) {
692 if (!p->group && strchr (p->mailbox, '@') == NULL) {
700 if (!(fqdn = mutt_fqdn (1))) {
703 ("Please set the hostname variable to a proper value when using mixmaster!");
707 /* Cc and Bcc are empty at this point. */
708 rfc822_qualify (msg->env->to, fqdn);
709 rfc822_qualify (msg->env->reply_to, fqdn);
710 rfc822_qualify (msg->env->mail_followup_to, fqdn);
716 int mix_send_message (LIST * chain, const char *tempfile)
718 char cmd[HUGE_STRING];
719 char tmp[HUGE_STRING];
720 char cd_quoted[STRING];
723 snprintf (cmd, sizeof (cmd), "cat %s | %s -m ", tempfile, Mixmaster);
725 for (i = 0; chain; chain = chain->next, i = 1) {
726 m_strcpy(tmp, sizeof(tmp), cmd);
727 mutt_quote_filename (cd_quoted, sizeof (cd_quoted), (char *) chain->data);
728 snprintf (cmd, sizeof (cmd), "%s%s%s", tmp, i ? "," : " -l ", cd_quoted);
731 if (!option (OPTNOCURSES))
734 if ((i = mutt_system (cmd))) {
735 fprintf (stderr, _("Error sending message, child exited %d.\n"), i);
736 if (!option (OPTNOCURSES)) {
737 mutt_any_key_to_continue (NULL);
738 mutt_error _("Error sending message.");