2 * Incoming Mail Checker
4 * (c) 2005 Martin Mares <mj@ucw.cz>
24 static int check_interval = 30;
25 static int force_refresh;
26 static int minimum_priority;
27 static time_t last_scan_time;
28 static char *run_cmd = "mutt -f %s";
51 static clist options, patterns;
52 static struct options global_options;
63 int last_size, last_pos;
65 int last_total, last_new;
72 static struct mbox **mbox_array;
73 static int num_mboxes, mbox_array_size;
75 static void redraw_line(int i);
76 static void rethink_display(void);
79 add_pattern(char *patt)
81 struct pattern_node *n = xmalloc(sizeof(*n) + strlen(patt));
82 strcpy(n->pattern, patt);
83 if (patt = strchr(n->pattern, '='))
90 clist_add_tail(&patterns, &n->n);
96 struct passwd *p = getpwuid(getuid());
98 die("You don't exist, go away!");
99 char buf[sizeof("/var/mail/") + strlen(p->pw_name) + 7];
100 sprintf(buf, "/var/mail/%s=INBOX", p->pw_name);
105 init_options(struct options *o)
109 o->hide_if_empty = -1;
116 setup_options(struct mbox *b)
118 b->o = global_options;
119 CLIST_FOR_EACH(struct option_node *, n, options)
120 if (!fnmatch(n->pattern, b->name, 0))
122 debug("\tApplied options %s\n", n->pattern);
123 #define MERGE(f) if (n->o.f >= 0) b->o.f = n->o.f
126 MERGE(hide_if_empty);
134 mbox_name(char *path)
136 char *c = strrchr(path, '/');
137 return c ? (c+1) : path;
141 add_mbox(clist *l, char *path, char *name)
143 struct mbox *b = xmalloc(sizeof(*b));
144 bzero(b, sizeof(*b));
145 b->path = xstrdup(path);
146 b->name = xstrdup(name);
150 cnode *prev = l->head.prev;
151 while (prev != &l->head && strcmp(((struct mbox *)prev)->name, name) > 0)
153 clist_insert_after(&b->n, prev);
156 clist_add_tail(l, &b->n);
162 del_mbox(struct mbox *b)
171 find_mbox(clist *l, char *path)
173 CLIST_FOR_EACH(struct mbox *, b, *l)
174 if (!strcmp(b->path, path))
180 mbox_active_p(struct mbox *b)
182 if (b->o.priority < minimum_priority)
190 mbox_visible_p(struct mbox *b)
192 if (!mbox_active_p(b))
196 if (b->o.hide_if_empty && !b->total)
202 add_snippet(char **ppos, char *term, char *add)
205 while (*add && pos < term)
212 prepare_snippet(struct mbox *b, char *sender, char *subject)
214 while (*sender == ' ' || *sender == '\t')
216 while (*subject == ' ' || *subject == '\t')
219 char *pos = b->snippet;
220 char *term = b->snippet + sizeof(b->snippet) - 1;
223 add_snippet(&pos, term, sender);
224 add_snippet(&pos, term, ": ");
227 add_snippet(&pos, term, subject);
229 add_snippet(&pos, term, "No subject");
232 static int mb_fd, mb_pos;
233 static unsigned char mb_buf[4096], *mb_cc, *mb_end;
238 mb_cc = mb_end = mb_buf;
245 lseek(mb_fd, pos, SEEK_SET);
252 return mb_pos - (mb_end - mb_cc);
258 int len = read(mb_fd, mb_buf, sizeof(mb_buf));
267 mb_end = mb_buf + len;
276 return (mb_cc < mb_end) ? *mb_cc++ : mb_ll_get();
280 mb_check(const char *p, int len)
284 if (mb_get() != *p++)
291 scan_mbox(struct mbox *b, struct stat *st)
293 char buf[1024], sender[1024], subject[1024];
295 const char from[] = "\nFrom ";
299 b->total = b->new = 0;
304 /* FIXME: Locking! */
306 mb_fd = open(b->path, O_RDONLY);
309 debug("[open failed: %m] ");
310 b->total = b->new = -1;
316 if (b->last_size && b->last_pos && st->st_size > b->last_size && !b->force_refresh)
318 mb_seek(b->last_pos);
319 if (mb_check(from, 6))
321 debug("[incremental] ");
326 debug("[incremental failed] ");
332 if (!mb_check(from+1, 5))
334 debug("[inconsistent] ");
335 b->total = b->new = -1;
338 b->total = b->new = 0;
339 b->last_total = b->last_new = 0;
343 b->total = b->last_total;
344 b->new = b->last_new;
349 b->last_pos = mb_tell() - 5;
351 b->last_pos--; // last_pos should be the previous \n character
352 b->last_total = b->total;
353 b->last_new = b->new;
354 while ((c = mb_get()) >= 0 && c != '\n')
368 debug("[truncated] ");
375 if (i < sizeof(buf) - 1)
381 if (!strncasecmp(buf, "Status:", 7))
383 else if (!strncasecmp(buf, "From:", 5))
384 strcpy(sender, buf+5);
385 else if (!strncasecmp(buf, "Subject:", 8))
386 strcpy(subject, buf+8);
393 prepare_snippet(b, sender, subject);
414 debug("Searching for mailboxes...\n");
415 last_scan_time = time(NULL);
416 CLIST_FOR_EACH(struct pattern_node *, p, patterns)
418 debug("Trying pattern %s (name %s)\n", p->pattern, p->name);
420 int err = glob(p->pattern, GLOB_ERR | GLOB_NOSORT | GLOB_TILDE | GLOB_TILDE_CHECK, NULL, &g);
421 if (err && err != GLOB_NOMATCH)
422 die("Failed to glob %s: %m", p->pattern);
423 for (uns i=0; i<g.gl_pathc; i++)
425 char *name = g.gl_pathv[i];
426 struct mbox *b = find_mbox(&mboxes, name);
429 b = add_mbox(&mboxes, name, (p->name ? p->name : mbox_name(name)));
430 debug("Discovered mailbox %s (%s)\n", b->name, b->path);
440 CLIST_FOR_EACH_DELSAFE(struct mbox *, b, mboxes, tmp)
446 debug("Lost mailbox %s\n", b->name);
453 debug("Scanning mailboxes...\n");
454 CLIST_FOR_EACH(struct mbox *, b, mboxes)
457 debug("%s: ", b->name);
458 if (!mbox_active_p(b))
464 b->force_refresh = 1;
465 if (stat(b->path, &st) < 0)
467 b->total = b->new = -1;
470 else if (!b->last_time || st.st_mtime != b->last_time || st.st_size != b->last_size || b->force_refresh)
473 redraw_line(b->index);
477 b->last_time = st.st_mtime;
478 b->last_size = st.st_size;
479 debug("%d %d (stopped at %d of %d)\n", b->total, b->new, b->last_pos, b->last_size);
482 redraw_line(b->index);
486 debug("not changed\n");
487 b->force_refresh = 0;
491 debug("Scan finished\n");
492 last_scan_time = time(NULL);
496 static int cursor_at, cursor_max;
505 static int attrs[2][2][M_MAX]; // active, hilite, status
513 struct mbox *b = mbox_array[i];
514 int cc = (cursor_at == i);
515 int hi = b->o.highlight;
517 attrset(attrs[cc][hi][M_IDLE]);
523 attrset(attrs[cc][hi][M_NEW]);
524 printw("%-20s ", b->name);
527 else if (b->scanning)
529 attrset(attrs[cc][hi][M_SCAN]);
530 printw("[SCANNING]");
532 else if (b->total < 0)
534 attrset(attrs[cc][hi][M_BAD]);
539 attrset(attrs[cc][hi][M_IDLE]);
540 printw("%6d ", b->total);
543 attrset(attrs[cc][hi][M_NEW]);
544 printw("%6d ", b->new);
545 attrset(attrs[cc][hi][M_IDLE]);
546 int age = (last_scan_time - b->last_time);
550 printw("%2d min ", age/60);
551 else if (age < 86400)
552 printw("%2d hrs ", age/3600);
555 if (b->o.snippets && b->snippet[0])
558 getyx(stdscr, yy, xx);
559 int remains = COLS-1-xx;
561 printw("%-.*s", remains, b->snippet);
566 attrset(attrs[0][0][M_IDLE]);
573 cursor_max = num_mboxes;
574 if (cursor_max > LINES-1)
575 cursor_max = LINES-1;
576 if (cursor_at >= cursor_max)
577 cursor_at = cursor_max - 1;
581 for (int i=0; i<cursor_max; i++)
586 printw("(no mailboxes found)");
594 rethink_display(void)
599 CLIST_FOR_EACH(struct mbox *, b, mboxes)
600 if (mbox_visible_p(b))
603 if (i >= num_mboxes || mbox_array[i] != b)
606 if (i >= mbox_array_size)
608 mbox_array_size = (mbox_array_size ? 2*mbox_array_size : 16);
609 mbox_array = xrealloc(mbox_array, sizeof(struct mbox *) * mbox_array_size);
613 if (b->o.beep && b->new > b->last_beep_new)
615 b->last_beep_new = b->new;
638 intrflush(stdscr, FALSE);
639 keypad(stdscr, TRUE);
642 static const int attrs_mono[2][M_MAX] = {
643 [0] = { [M_IDLE] = 0, [M_SCAN] = A_BOLD, [M_NEW] = A_BOLD, [M_BAD] = A_DIM },
644 [1] = { [M_IDLE] = 0, [M_SCAN] = A_BOLD, [M_NEW] = A_REVERSE | A_BOLD, [M_BAD] = A_DIM },
646 for (int i=0; i<2; i++)
647 for (int j=0; j<M_MAX; j++)
649 attrs[0][i][j] = attrs_mono[i][j];
650 attrs[1][i][j] = attrs_mono[i][j] | A_UNDERLINE;
656 if (COLOR_PAIRS >= 5)
658 init_pair(1, COLOR_YELLOW, COLOR_BLACK);
659 init_pair(2, COLOR_RED, COLOR_BLACK);
660 init_pair(3, COLOR_WHITE, COLOR_BLUE);
661 init_pair(4, COLOR_YELLOW, COLOR_BLUE);
662 init_pair(5, COLOR_RED, COLOR_BLUE);
663 static const int attrs_color[2][2][M_MAX] = {
664 [0][0] = { [M_IDLE] = 0, [M_SCAN] = COLOR_PAIR(1), [M_NEW] = COLOR_PAIR(1), [M_BAD] = COLOR_PAIR(2) },
665 [0][1] = { [M_IDLE] = A_BOLD, [M_SCAN] = COLOR_PAIR(1), [M_NEW] = COLOR_PAIR(1) | A_BOLD, [M_BAD] = COLOR_PAIR(2) | A_BOLD },
666 [1][0] = { [M_IDLE] = COLOR_PAIR(3), [M_SCAN] = COLOR_PAIR(4), [M_NEW] = COLOR_PAIR(4), [M_BAD] = COLOR_PAIR(5) },
667 [1][1] = { [M_IDLE] = COLOR_PAIR(3) | A_BOLD, [M_SCAN] = COLOR_PAIR(4), [M_NEW] = COLOR_PAIR(4) | A_BOLD, [M_BAD] = COLOR_PAIR(5) | A_BOLD },
669 memcpy(attrs, attrs_color, sizeof(attrs));
681 scan_and_redraw(void)
695 if (i >= 0 && i < cursor_max && i != cursor_at)
705 next_active(int since, int step)
709 since = (since+cursor_max) % cursor_max;
710 step = (step+cursor_max) % cursor_max;
716 struct mbox *b = mbox_array[i];
717 if (b->new && b->o.priority > bestp)
720 bestp = b->o.priority;
722 i = (i+step) % cursor_max;
730 #define STR(c) STR2(c)
735 fprintf(stderr, "Usage: cm [<options>] [<mbox-pattern> | <mbox>[=<name>]] ...\n\
738 -c <interval>\t\tScan mailboxes every <interval> seconds (default is 30)\n\
739 -d\t\t\tLog debug messages to stderr\n\
740 -i\t\t\tInclude user's INBOX\n\
741 -m <cmd>\t\tCommand to run on the selected mailbox, %%s gets replaced by mailbox path\n\
742 -o <pattern>=<opts>\tSet mailbox options\n\
743 -o <opts>\t\tSet default options for all mailboxes\n\
744 -p <pri>\t\tSet minimum priority to show\n\
746 Mailbox options (set with `-o', use upper case to negate):\n\
747 0-9\t\t\tSet mailbox priority (0=default)\n\
748 b\t\t\tBeep when a message arrives\n\
749 e\t\t\tHide from display if empty\n\
750 h\t\t\tHide from display\n\
751 s\t\t\tShow message snippets\n\
752 t\t\t\tHighlight the entry\n\
754 CheckMail " STR(VERSION) ", (c) " STR(YEAR) " Martin Mares <mj@ucw.cz>\n\
755 It can be freely distributed and used according to the GNU GPL v2.\n\
761 parse_options(char *c)
765 if (sep = strchr(c, '='))
767 struct option_node *n = xmalloc(sizeof(*n) + sep-c);
768 memcpy(n->pattern, c, sep-c);
769 n->pattern[sep-c] = 0;
770 clist_add_tail(&options, &n->n);
780 if (x >= '0' && x <= '9')
781 o->priority = x - '0';
784 int value = !!islower(x);
791 o->hide_if_empty = value;
800 o->highlight = value;
803 fprintf(stderr, "Invalid mailbox option `%c'\n", x);
810 main(int argc, char **argv)
813 clist_init(&options);
814 clist_init(&patterns);
817 while ((c = getopt(argc, argv, "c:dim:o:p:")) >= 0)
821 check_interval = atol(optarg);
822 if (check_interval <= 0)
835 parse_options(optarg);
838 minimum_priority = atol(optarg);
843 while (optind < argc)
844 add_pattern(argv[optind++]);
853 time_t now = time(NULL);
854 int remains = last_scan_time + check_interval - now;
855 if (remains <= 0 || force_refresh)
860 halfdelay((remains > 255) ? 255 : remains);
869 move_cursor(cursor_at+1);
873 move_cursor(cursor_at-1);
883 move_cursor(cursor_max-1);
886 next_active(cursor_at+1, 1);
889 next_active(cursor_at-1, -1);
893 if (cursor_at < cursor_max)
895 struct mbox *b = mbox_array[cursor_at];
896 char cmd[strlen(run_cmd) + strlen(b->path) + 16];
897 sprintf(cmd, run_cmd, b->path);
903 b->force_refresh = 1;
911 if (ch >= '0' && ch <= '9')
913 minimum_priority = ch - '0';
917 debug("Pressed unknown key %d\n", ch);