2 * Copyright notice from original mutt:
3 * Copyright (C) 1996-2000 Michael R. Elkins <me@mutt.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.
22 #include "mutt_curses.h"
28 #include "mutt_crypt.h"
35 #define BUFI_SIZE 1000
36 #define BUFO_SIZE 2000
39 typedef void handler_f (BODY *, STATE *);
40 typedef handler_f *handler_t;
42 int Index_hex[128] = {
43 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
44 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
45 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
46 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1,
47 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
48 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
49 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
50 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
54 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
55 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
56 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
57 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
58 -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
59 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
60 -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
61 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1
64 static void state_prefix_put (const char *d, size_t dlen, STATE * s)
68 state_prefix_putc (*d++, s);
70 fwrite (d, dlen, 1, s->fpout);
73 void mutt_convert_to_state (iconv_t cd, char *bufi, size_t * l, STATE * s)
81 if (cd != (iconv_t) (-1)) {
82 ob = bufo, obl = sizeof (bufo);
83 iconv (cd, 0, 0, &ob, &obl);
85 state_prefix_put (bufo, ob - bufo, s);
87 if (Quotebuf[0] != '\0')
88 state_prefix_putc ('\n', s);
92 if (cd == (iconv_t) (-1)) {
93 state_prefix_put (bufi, *l, s);
100 ob = bufo, obl = sizeof (bufo);
101 mutt_iconv (cd, &ib, &ibl, &ob, &obl, 0, "?");
104 state_prefix_put (bufo, ob - bufo, s);
106 memmove (bufi, ib, ibl);
110 void mutt_decode_xbit (STATE * s, long len, int istext, iconv_t cd)
113 char bufi[BUFI_SIZE];
117 state_set_prefix (s);
119 while ((c = fgetc (s->fpin)) != EOF && len--) {
120 if (c == '\r' && len) {
121 if ((ch = fgetc (s->fpin)) == '\n') {
126 ungetc (ch, s->fpin);
130 if (l == sizeof (bufi))
131 mutt_convert_to_state (cd, bufi, &l, s);
134 mutt_convert_to_state (cd, bufi, &l, s);
135 mutt_convert_to_state (cd, 0, 0, s);
137 state_reset_prefix (s);
140 mutt_copy_bytes (s->fpin, s->fpout, len);
143 static int qp_decode_triple (char *s, char *d)
145 /* soft line break */
146 if (*s == '=' && !(*(s + 1)))
149 /* quoted-printable triple */
151 isxdigit ((unsigned char) *(s + 1)) &&
152 isxdigit ((unsigned char) *(s + 2))) {
153 *d = (hexval (*(s + 1)) << 4) | hexval (*(s + 2));
161 static void qp_decode_line (char *dest, char *src, size_t * l, int last)
169 /* decode the line */
171 for (d = dest, s = src; *s;) {
172 switch ((kind = qp_decode_triple (s, &c))) {
176 break; /* qp triple */
179 break; /* single character */
183 break; /* soft line break */
187 if (!soft && last == '\n')
195 * Decode an attachment encoded with quoted-printable.
197 * Why doesn't this overflow any buffers? First, it's guaranteed
198 * that the length of a line grows when you _en_-code it to
199 * quoted-printable. That means that we always can store the
200 * result in a buffer of at most the _same_ size.
202 * Now, we don't special-case if the line we read with fgets()
203 * isn't terminated. We don't care about this, since STRING > 78,
204 * so corrupted input will just be corrupted a bit more. That
205 * implies that STRING+1 bytes are always sufficient to store the
206 * result of qp_decode_line.
208 * Finally, at soft line breaks, some part of a multibyte character
209 * may have been left over by mutt_convert_to_state(). This shouldn't
210 * be more than 6 characters, so STRING + 7 should be sufficient
211 * memory to store the decoded data.
213 * Just to make sure that I didn't make some off-by-one error
214 * above, we just use STRING*2 for the target buffer's size.
218 void mutt_decode_quoted (STATE * s, long len, int istext, iconv_t cd)
221 char decline[2 * STRING];
223 size_t linelen; /* number of input bytes in `line' */
226 int last; /* store the last character in the input line */
229 state_set_prefix (s);
235 * It's ok to use a fixed size buffer for input, even if the line turns
236 * out to be longer than this. Just process the line in chunks. This
237 * really shouldn't happen according the MIME spec, since Q-P encoded
238 * lines are at most 76 characters, but we should be liberal about what
241 if (fgets (line, MIN ((ssize_t) sizeof (line), len + 1), s->fpin) == NULL)
244 linelen = mutt_strlen (line);
248 * inspect the last character we read so we can tell if we got the
251 last = linelen ? line[linelen - 1] : 0;
253 /* chop trailing whitespace if we got the full line */
255 while (linelen > 0 && ISSPACE (line[linelen - 1]))
260 /* decode and do character set conversion */
261 qp_decode_line (decline + l, line, &l3, last);
263 mutt_convert_to_state (cd, decline, &l, s);
266 mutt_convert_to_state (cd, 0, 0, s);
267 state_reset_prefix (s);
270 void mutt_decode_base64 (STATE * s, long len, int istext, iconv_t cd)
273 int c1, c2, c3, c4, ch, cr = 0, i;
274 char bufi[BUFI_SIZE];
280 state_set_prefix (s);
283 for (i = 0; i < 4 && len > 0; len--) {
284 if ((ch = fgetc (s->fpin)) == EOF)
286 if (ch >= 0 && ch < 128 && (base64val (ch) != -1 || ch == '='))
290 dprint (2, (debugfile, "%s:%d [mutt_decode_base64()]: "
291 "didn't get a multiple of 4 chars.\n", __FILE__, __LINE__));
295 c1 = base64val (buf[0]);
296 c2 = base64val (buf[1]);
297 ch = (c1 << 2) | (c2 >> 4);
299 if (cr && ch != '\n')
304 if (istext && ch == '\r')
311 c3 = base64val (buf[2]);
312 ch = ((c2 & 0xf) << 4) | (c3 >> 2);
314 if (cr && ch != '\n')
319 if (istext && ch == '\r')
326 c4 = base64val (buf[3]);
327 ch = ((c3 & 0x3) << 6) | c4;
329 if (cr && ch != '\n')
333 if (istext && ch == '\r')
338 if (l + 8 >= sizeof (bufi))
339 mutt_convert_to_state (cd, bufi, &l, s);
345 mutt_convert_to_state (cd, bufi, &l, s);
346 mutt_convert_to_state (cd, 0, 0, s);
348 state_reset_prefix (s);
351 unsigned char decode_byte (char ch)
358 void mutt_decode_uuencoded (STATE * s, long len, int istext, iconv_t cd)
360 char tmps[SHORT_STRING];
361 char linelen, c, l, out;
363 char bufi[BUFI_SIZE];
367 state_set_prefix (s);
370 if ((fgets (tmps, sizeof (tmps), s->fpin)) == NULL)
372 len -= mutt_strlen (tmps);
373 if ((!mutt_strncmp (tmps, "begin", 5)) && ISSPACE (tmps[5]))
377 if ((fgets (tmps, sizeof (tmps), s->fpin)) == NULL)
379 len -= mutt_strlen (tmps);
380 if (!mutt_strncmp (tmps, "end", 3))
383 linelen = decode_byte (*pt);
385 for (c = 0; c < linelen;) {
386 for (l = 2; l <= 6; l += 2) {
387 out = decode_byte (*pt) << l;
389 out |= (decode_byte (*pt) >> (6 - l));
395 mutt_convert_to_state (cd, bufi, &k, s);
400 mutt_convert_to_state (cd, bufi, &k, s);
401 mutt_convert_to_state (cd, 0, 0, s);
403 state_reset_prefix (s);
406 /* ----------------------------------------------------------------------------
407 * A (not so) minimal implementation of RFC1563.
410 #define IndentSize (4)
412 enum { RICH_PARAM = 0, RICH_BOLD, RICH_UNDERLINE, RICH_ITALIC, RICH_NOFILL,
413 RICH_INDENT, RICH_INDENT_RIGHT, RICH_EXCERPT, RICH_CENTER, RICH_FLUSHLEFT,
414 RICH_FLUSHRIGHT, RICH_COLOR, RICH_LAST_TAG
418 const char *tag_name;
422 "param", RICH_PARAM}, {
423 "bold", RICH_BOLD}, {
424 "italic", RICH_ITALIC}, {
425 "underline", RICH_UNDERLINE}, {
426 "nofill", RICH_NOFILL}, {
427 "excerpt", RICH_EXCERPT}, {
428 "indent", RICH_INDENT}, {
429 "indentright", RICH_INDENT_RIGHT}, {
430 "center", RICH_CENTER}, {
431 "flushleft", RICH_FLUSHLEFT}, {
432 "flushright", RICH_FLUSHRIGHT}, {
433 "flushboth", RICH_FLUSHLEFT}, {
434 "color", RICH_COLOR}, {
435 "x-color", RICH_COLOR}, {
439 struct enriched_state {
452 int tag_level[RICH_LAST_TAG];
457 static void enriched_wrap (struct enriched_state *stte)
462 if (stte->line_len) {
463 if (stte->tag_level[RICH_CENTER] || stte->tag_level[RICH_FLUSHRIGHT]) {
464 /* Strip trailing white space */
465 size_t y = stte->line_used - 1;
467 while (y && ISSPACE (stte->line[y])) {
468 stte->line[y] = '\0';
473 if (stte->tag_level[RICH_CENTER]) {
474 /* Strip leading whitespace */
477 while (stte->line[y] && ISSPACE (stte->line[y]))
482 for (z = y; z <= stte->line_used; z++) {
483 stte->line[z - y] = stte->line[z];
487 stte->line_used -= y;
492 extra = stte->WrapMargin - stte->line_len - stte->indent_len -
493 (stte->tag_level[RICH_INDENT_RIGHT] * IndentSize);
495 if (stte->tag_level[RICH_CENTER]) {
498 state_putc (' ', stte->s);
502 else if (stte->tag_level[RICH_FLUSHRIGHT]) {
505 state_putc (' ', stte->s);
510 state_puts (stte->line, stte->s);
513 state_putc ('\n', stte->s);
514 stte->line[0] = '\0';
517 stte->indent_len = 0;
518 if (stte->s->prefix) {
519 state_puts (stte->s->prefix, stte->s);
520 stte->indent_len += mutt_strlen (stte->s->prefix);
523 if (stte->tag_level[RICH_EXCERPT]) {
524 x = stte->tag_level[RICH_EXCERPT];
526 if (stte->s->prefix) {
527 state_puts (stte->s->prefix, stte->s);
528 stte->indent_len += mutt_strlen (stte->s->prefix);
531 state_puts ("> ", stte->s);
532 stte->indent_len += mutt_strlen ("> ");
538 stte->indent_len = 0;
539 if (stte->tag_level[RICH_INDENT]) {
540 x = stte->tag_level[RICH_INDENT] * IndentSize;
541 stte->indent_len += x;
543 state_putc (' ', stte->s);
549 static void enriched_flush (struct enriched_state *stte, int wrap)
551 if (!stte->tag_level[RICH_NOFILL] && (stte->line_len + stte->word_len >
553 (stte->tag_level[RICH_INDENT_RIGHT] *
554 IndentSize) - stte->indent_len)))
555 enriched_wrap (stte);
557 if (stte->buff_used) {
558 stte->buffer[stte->buff_used] = '\0';
559 stte->line_used += stte->buff_used;
560 if (stte->line_used > stte->line_max) {
561 stte->line_max = stte->line_used;
562 safe_realloc (&stte->line, stte->line_max + 1);
564 strcat (stte->line, stte->buffer); /* __STRCAT_CHECKED__ */
565 stte->line_len += stte->word_len;
570 enriched_wrap (stte);
574 static void enriched_putc (int c, struct enriched_state *stte)
576 if (stte->tag_level[RICH_PARAM]) {
577 if (stte->tag_level[RICH_COLOR]) {
578 if (stte->param_used + 1 >= stte->param_len)
579 safe_realloc (&stte->param, (stte->param_len += STRING));
581 stte->param[stte->param_used++] = c;
583 return; /* nothing to do */
586 /* see if more space is needed (plus extra for possible rich characters) */
587 if (stte->buff_len < stte->buff_used + 3) {
588 stte->buff_len += LONG_STRING;
589 safe_realloc (&stte->buffer, stte->buff_len + 1);
592 if ((!stte->tag_level[RICH_NOFILL] && ISSPACE (c)) || c == '\0') {
594 stte->word_len += 8 - (stte->line_len + stte->word_len) % 8;
598 stte->buffer[stte->buff_used++] = c;
599 enriched_flush (stte, 0);
602 if (stte->s->flags & M_DISPLAY) {
603 if (stte->tag_level[RICH_BOLD]) {
604 stte->buffer[stte->buff_used++] = c;
605 stte->buffer[stte->buff_used++] = '\010';
606 stte->buffer[stte->buff_used++] = c;
608 else if (stte->tag_level[RICH_UNDERLINE]) {
610 stte->buffer[stte->buff_used++] = '_';
611 stte->buffer[stte->buff_used++] = '\010';
612 stte->buffer[stte->buff_used++] = c;
614 else if (stte->tag_level[RICH_ITALIC]) {
615 stte->buffer[stte->buff_used++] = c;
616 stte->buffer[stte->buff_used++] = '\010';
617 stte->buffer[stte->buff_used++] = '_';
620 stte->buffer[stte->buff_used++] = c;
624 stte->buffer[stte->buff_used++] = c;
630 static void enriched_puts (char *s, struct enriched_state *stte)
634 if (stte->buff_len < stte->buff_used + mutt_strlen (s)) {
635 stte->buff_len += LONG_STRING;
636 safe_realloc (&stte->buffer, stte->buff_len + 1);
640 stte->buffer[stte->buff_used++] = *c;
645 static void enriched_set_flags (const char *tag, struct enriched_state *stte)
647 const char *tagptr = tag;
653 for (i = 0, j = -1; EnrichedTags[i].tag_name; i++)
654 if (ascii_strcasecmp (EnrichedTags[i].tag_name, tagptr) == 0) {
655 j = EnrichedTags[i].index;
660 if (j == RICH_CENTER || j == RICH_FLUSHLEFT || j == RICH_FLUSHRIGHT)
661 enriched_flush (stte, 1);
664 if (stte->tag_level[j]) /* make sure not to go negative */
665 stte->tag_level[j]--;
666 if ((stte->s->flags & M_DISPLAY) && j == RICH_PARAM
667 && stte->tag_level[RICH_COLOR]) {
668 stte->param[stte->param_used] = '\0';
669 if (!ascii_strcasecmp (stte->param, "black")) {
670 enriched_puts ("\033[30m", stte);
672 else if (!ascii_strcasecmp (stte->param, "red")) {
673 enriched_puts ("\033[31m", stte);
675 else if (!ascii_strcasecmp (stte->param, "green")) {
676 enriched_puts ("\033[32m", stte);
678 else if (!ascii_strcasecmp (stte->param, "yellow")) {
679 enriched_puts ("\033[33m", stte);
681 else if (!ascii_strcasecmp (stte->param, "blue")) {
682 enriched_puts ("\033[34m", stte);
684 else if (!ascii_strcasecmp (stte->param, "magenta")) {
685 enriched_puts ("\033[35m", stte);
687 else if (!ascii_strcasecmp (stte->param, "cyan")) {
688 enriched_puts ("\033[36m", stte);
690 else if (!ascii_strcasecmp (stte->param, "white")) {
691 enriched_puts ("\033[37m", stte);
694 if ((stte->s->flags & M_DISPLAY) && j == RICH_COLOR) {
695 enriched_puts ("\033[0m", stte);
698 /* flush parameter buffer when closing the tag */
699 if (j == RICH_PARAM) {
700 stte->param_used = 0;
701 stte->param[0] = '\0';
705 stte->tag_level[j]++;
707 if (j == RICH_EXCERPT)
708 enriched_flush (stte, 1);
712 void text_enriched_handler (BODY * a, STATE * s)
715 TEXT, LANGLE, TAG, BOGUS_TAG, NEWLINE, ST_EOF, DONE
718 long bytes = a->length;
719 struct enriched_state stte;
722 char tag[LONG_STRING + 1];
724 memset (&stte, 0, sizeof (stte));
727 ((s->flags & M_DISPLAY) ? (COLS - 4) : ((COLS - 4) <
728 72) ? (COLS - 4) : 72);
729 stte.line_max = stte.WrapMargin * 4;
730 stte.line = (char *) safe_calloc (1, stte.line_max + 1);
731 stte.param = (char *) safe_calloc (1, STRING);
733 stte.param_len = STRING;
737 state_puts (s->prefix, s);
738 stte.indent_len += mutt_strlen (s->prefix);
741 while (state != DONE) {
742 if (state != ST_EOF) {
743 if (!bytes || (c = fgetc (s->fpin)) == EOF)
757 if (stte.tag_level[RICH_NOFILL]) {
758 enriched_flush (&stte, 1);
761 enriched_putc (' ', &stte);
767 enriched_putc (c, &stte);
773 enriched_putc (c, &stte);
781 /* Yes, fall through (it wasn't a <<, so this char is first in TAG) */
785 enriched_set_flags (tag, &stte);
788 else if (tag_len < LONG_STRING) /* ignore overly long tags */
801 enriched_flush (&stte, 1);
810 enriched_putc ('\0', &stte);
811 enriched_flush (&stte, 1);
815 case DONE: /* not reached, but gcc complains if this is absent */
820 state_putc ('\n', s); /* add a final newline */
822 FREE (&(stte.buffer));
824 FREE (&(stte.param));
828 * An implementation of RFC 2646.
830 * NOTE: This still has to be made UTF-8 aware.
834 #define FLOWED_MAX 77
837 static int flowed_maybe_quoted (char *cont)
839 return regexec ((regex_t *) QuoteRegexp.rx, cont, 0, NULL, 0) == 0;
842 static void flowed_quote (STATE * s, int level)
847 if (option (OPTTEXTFLOWED))
850 state_puts (s->prefix, s);
853 for (i = 0; i < level; i++)
857 static void flowed_stuff (STATE * s, char *cont, int level)
859 if (!option (OPTTEXTFLOWED) && !(s->flags & M_DISPLAY))
862 if (s->flags & M_DISPLAY) {
864 * Hack: If we are in the beginning of the line and there is
865 * some text on the line which looks like it's quoted, turn off
866 * ANSI colors, so quote coloring doesn't affect this line.
868 if (*cont && !level && !mutt_strcmp (Pager, "builtin")
869 && flowed_maybe_quoted (cont))
870 state_puts ("\033[0m", s);
872 else if ((!(s->flags & M_PRINTING)) && ((*cont == ' ') || (*cont == '>')
874 && !mutt_strncmp (cont, "From ",
879 static char *flowed_skip_indent (char *prefix, char *cont)
881 for (; *cont == ' ' || *cont == '\t'; cont++)
887 static int flowed_visual_strlen (char *l, int i)
891 for (j = 0; *l; l++) {
893 j += 8 - ((i + j) % 8);
901 static void text_plain_flowed_handler (BODY * a, STATE * s)
903 char line[LONG_STRING];
904 char indent[LONG_STRING];
918 int bytes = a->length;
919 int actually_wrap = 0;
932 if ((flowed_max = FLOWED_MAX) > COLS - 3)
933 flowed_max = COLS - 3;
934 if (flowed_max > COLS - WrapMargin)
935 flowed_max = COLS - WrapMargin;
939 flowed_max = COLS - WrapMargin;
943 fprintf (stderr, "flowed_max = %d\n", flowed_max);
945 while (bytes > 0 && fgets (line, sizeof (line), s->fpin)) {
946 bytes -= mutt_strlen (line);
952 * If the last line wasn't fully read, this is the
955 actually_wrap = !last_full;
957 if ((t = strrchr (line, '\r')) || (t = strrchr (line, '\n'))) {
961 else if ((t = strrchr (line, ' ')) || (t = strrchr (line, '\t'))) {
963 * Bad: We have a line of more than LONG_STRING characters.
964 * (Which SHOULD NOT happen, since lines SHOULD be <= 79
967 * Try to simulate a soft line break at a word boundary.
968 * Handle the rest of the line next time.
970 * Give up when we have a single word which is longer than
971 * LONG_STRING characters. It will just be split into parts,
972 * with a hard line break in between.
976 l = mutt_strlen (t + 1);
981 fseek (s->fpin, -l, SEEK_CUR);
988 last_quoted = quoted;
992 * We are in the beginning of a new line. Determine quote level
993 * and indentation prefix
995 for (quoted = 0; line[quoted] == '>'; quoted++);
997 cont = line + quoted;
999 /* undo space stuffing */
1003 /* If there is an indentation, record it. */
1004 cont = flowed_skip_indent (indent, cont);
1005 i_add = flowed_visual_strlen (indent, quoted + add);
1009 * This is just the tail of some over-long line. Keep
1010 * indentation and quote levels. Don't unstuff.
1015 /* If we have a change in quoting depth, wrap. */
1017 if (col && last_quoted != quoted && last_quoted >= 0) {
1018 state_putc ('\n', s);
1031 /* try to find a point for word wrapping */
1034 l = flowed_visual_strlen (cont, quoted + i_add + add + col);
1035 rl = mutt_strlen (cont);
1036 if (quoted + i_add + add + col + l > flowed_max) {
1039 for (tmpcol = quoted + i_add + add + col, t = cont;
1040 *t && tmpcol < flowed_max; t++) {
1041 if (*t == ' ' || *t == '\t')
1044 tmpcol = (tmpcol & ~7) + 8;
1055 /* We seem to be desperate. Get me a new line, and retry. */
1056 if (!tail && (quoted + add + col + i_add + l > flowed_max) && col) {
1057 state_putc ('\n', s);
1062 /* Detect soft line breaks. */
1063 if (!soft && ascii_strcmp (cont, "-- ")) {
1064 lc = strrchr (cont, ' ');
1065 if (lc && lc[1] == '\0')
1070 * If we are in the beginning of an output line, do quoting
1073 * We have to temporarily assemble the line since display
1074 * stuffing (i.e., turning off quote coloring) may depend on
1075 * the line's actual content. You never know what people put
1076 * into their regular expressions.
1079 char tmp[LONG_STRING];
1081 snprintf (tmp, sizeof (tmp), "%s%s", indent, cont);
1083 flowed_quote (s, quoted);
1084 flowed_stuff (s, tmp, quoted + add);
1086 state_puts (indent, s);
1089 /* output the text */
1090 state_puts (cont, s);
1091 col += flowed_visual_strlen (cont, quoted + i_add + add + col);
1093 /* possibly indicate a soft line break */
1095 state_putc (' ', s);
1100 * Wrap if this display line corresponds to a
1101 * text line. Don't wrap if we changed the line.
1103 if (!soft || (!actually_wrap && full)) {
1104 state_putc ('\n', s);
1112 state_putc ('\n', s);
1117 static int get_quote_level (char *line)
1121 for (quoted = 0; line[quoted] == '>'; quoted++);
1125 static void print_flowed_line (char *line, STATE * s, int ql)
1129 int len = mutt_strlen (line);
1132 if (MaxLineLength > 0) {
1133 width = MaxLineLength - WrapMargin - ql - 1;
1134 if (option (OPTSTUFFQUOTED))
1137 width = MaxLineLength;
1140 if (option (OPTMBOXPANE))
1141 width = COLS - SidebarWidth - WrapMargin - ql - 1;
1143 width = COLS - WrapMargin - ql - 1;
1145 if (option (OPTSTUFFQUOTED))
1151 /* fprintf(stderr,"print_flowed_line will print `%s' with ql = %d\n",line,ql); */
1153 if (mutt_strlen (line) == 0) {
1154 if (option (OPTQUOTEEMPTY)) {
1156 state_puts(s->prefix,s);
1157 for (i=0;i<ql;++i) state_putc('>',s);
1158 if (option(OPTSTUFFQUOTED))
1165 pos = line + ql + width;
1167 if (ql > 0 && ISBLANK (*oldpos))
1170 /* fprintf(stderr,"oldpos = %p line+len = %p\n",oldpos,line+len); */
1172 for (; oldpos < line + len; pos += width) {
1173 /* fprintf(stderr,"outer for loop\n"); */
1174 if (pos < line + len) { /* only search a new position when we're not over the end of the string w/ pos */
1175 /* fprintf(stderr,"if 1\n"); */
1177 /* fprintf(stderr,"if 2: good luck! found a space\n"); */
1182 /* fprintf(stderr,"if 2: else\n"); */
1185 while (pos >= oldpos && !isspace (*pos)) {
1186 /* fprintf(stderr,"pos(%p) > oldpos(%p)\n",pos,oldpos); */
1190 /* fprintf(stderr,"wow, no space found, searching the other direction\n"); */
1192 while (pos < line + len && *pos && !isspace (*pos)) {
1193 /* fprintf(stderr,"pos(%p) < line+len(%p)\n",pos,line+len); */
1196 /* fprintf(stderr,"found a space pos = %p\n",pos); */
1203 /* fprintf(stderr,"if 1 else\n"); */
1206 state_puts (s->prefix, s);
1207 for (i = 0; i < ql; ++i)
1208 state_putc ('>', s);
1209 if (option (OPTSTUFFQUOTED) && (ql > 0 || s->prefix))
1210 state_putc (' ', s);
1211 state_puts (oldpos, s);
1212 /* fprintf(stderr,"print_flowed_line: `%s'\n",oldpos); */
1213 if (pos < line + len)
1214 state_putc (' ', s);
1215 state_putc ('\n', s);
1218 /*state_puts(line,s);
1219 state_putc('\n',s); */
1222 static void text_plain_flowed_handler (BODY * a, STATE * s)
1224 int bytes = a->length;
1225 char buf[LONG_STRING];
1226 char *curline = strdup ("");
1228 unsigned int curline_len = 1;
1229 unsigned int quotelevel = 0, newql = 0;
1230 int append_next_line = 0;
1233 while (bytes > 0 && fgets (buf, sizeof (buf), s->fpin)) {
1235 /* fprintf(stderr,"read `%s'",buf); */
1236 bytes -= mutt_strlen (buf);
1238 newql = get_quote_level (buf);
1240 if ((t = strrchr (buf, '\n')) || (t = strrchr (buf, '\r'))) {
1242 if (mutt_strlen (curline) > 0 && curline[mutt_strlen (curline) - 1] == ' '
1243 && newql == quotelevel
1244 && strcmp (curline + quotelevel, "-- ") != 0) {
1245 if (buf[newql] == ' ')
1246 curline[mutt_strlen (curline) - 1] = '\0';
1248 curline = realloc (curline, curline_len + mutt_strlen (buf));
1249 if (curline_len == 1)
1251 curline_len += mutt_strlen (buf);
1252 safe_strncat (curline, curline_len, buf + newql,
1253 mutt_strlen (buf + newql));
1260 print_flowed_line (curline, s, quotelevel);
1264 curline = realloc (curline, curline_len + mutt_strlen (buf));
1265 if (curline_len == 1)
1267 curline_len += mutt_strlen (buf);
1268 safe_strncat (curline, curline_len, buf, mutt_strlen (buf));
1273 append_next_line = 1;
1274 /* @todo: add handling of very long lines */
1278 print_flowed_line (curline, s, quotelevel);
1287 #define TXTENRICHED 3
1289 static void alternative_handler (BODY * a, STATE * s)
1291 BODY *choice = NULL;
1298 if (a->encoding == ENCBASE64 || a->encoding == ENCQUOTEDPRINTABLE ||
1299 a->encoding == ENCUUENCODED) {
1303 fstat (fileno (s->fpin), &st);
1304 b = mutt_new_body ();
1305 b->length = (long) st.st_size;
1306 b->parts = mutt_parse_multipart (s->fpin,
1307 mutt_get_parameter ("boundary",
1310 ascii_strcasecmp ("digest",
1318 /* First, search list of prefered types */
1319 t = AlternativeOrderList;
1320 while (t && !choice) {
1322 int btlen; /* length of basetype */
1323 int wild; /* do we have a wildcard to match all subtypes? */
1325 c = strchr (t->data, '/');
1327 wild = (c[1] == '*' && c[2] == 0);
1328 btlen = c - t->data;
1332 btlen = mutt_strlen (t->data);
1340 const char *bt = TYPE (b);
1342 if (!ascii_strncasecmp (bt, t->data, btlen) && bt[btlen] == 0) {
1343 /* the basetype matches */
1344 if (wild || !ascii_strcasecmp (t->data + btlen + 1, b->subtype)) {
1353 /* Next, look for an autoviewable type */
1360 snprintf (buf, sizeof (buf), "%s/%s", TYPE (b), b->subtype);
1361 if (mutt_is_autoview (b, buf)) {
1362 rfc1524_entry *entry = rfc1524_new_entry ();
1364 if (rfc1524_mailcap_lookup (b, buf, entry, M_AUTOVIEW)) {
1367 rfc1524_free_entry (&entry);
1373 /* Then, look for a text entry */
1380 if (b->type == TYPETEXT) {
1381 if (!ascii_strcasecmp ("plain", b->subtype) && type <= TXTPLAIN) {
1385 else if (!ascii_strcasecmp ("enriched", b->subtype)
1386 && type <= TXTENRICHED) {
1390 else if (!ascii_strcasecmp ("html", b->subtype) && type <= TXTHTML) {
1399 /* Finally, look for other possibilities */
1406 if (mutt_can_decode (b))
1413 if (s->flags & M_DISPLAY && !option (OPTWEED)) {
1414 fseek (s->fpin, choice->hdr_offset, 0);
1415 mutt_copy_bytes (s->fpin, s->fpout,
1416 choice->offset - choice->hdr_offset);
1418 mutt_body_handler (choice, s);
1420 else if (s->flags & M_DISPLAY) {
1421 /* didn't find anything that we could display! */
1422 state_mark_attach (s);
1424 ("[-- Error: Could not display any parts of Multipart/Alternative! --]\n"),
1429 mutt_free_body (&a);
1432 /* handles message/rfc822 body parts */
1433 void message_handler (BODY * a, STATE * s)
1439 off_start = ftell (s->fpin);
1440 if (a->encoding == ENCBASE64 || a->encoding == ENCQUOTEDPRINTABLE ||
1441 a->encoding == ENCUUENCODED) {
1442 fstat (fileno (s->fpin), &st);
1443 b = mutt_new_body ();
1444 b->length = (long) st.st_size;
1445 b->parts = mutt_parse_messageRFC822 (s->fpin, b);
1451 mutt_copy_hdr (s->fpin, s->fpout, off_start, b->parts->offset,
1452 (((s->flags & M_WEED)
1453 || ((s->flags & (M_DISPLAY | M_PRINTING))
1454 && option (OPTWEED))) ? (CH_WEED | CH_REORDER) : 0) |
1455 (s->prefix ? CH_PREFIX : 0) | CH_DECODE | CH_FROM,
1459 state_puts (s->prefix, s);
1460 state_putc ('\n', s);
1462 mutt_body_handler (b->parts, s);
1465 if (a->encoding == ENCBASE64 || a->encoding == ENCQUOTEDPRINTABLE ||
1466 a->encoding == ENCUUENCODED)
1467 mutt_free_body (&b);
1470 /* returns 1 if decoding the attachment will produce output */
1471 int mutt_can_decode (BODY * a)
1475 snprintf (type, sizeof (type), "%s/%s", TYPE (a), a->subtype);
1476 if (mutt_is_autoview (a, type))
1477 return (rfc1524_mailcap_lookup (a, type, NULL, M_AUTOVIEW));
1478 else if (a->type == TYPETEXT)
1480 else if (a->type == TYPEMESSAGE)
1482 else if (a->type == TYPEMULTIPART) {
1486 if (ascii_strcasecmp (a->subtype, "signed") == 0 ||
1487 ascii_strcasecmp (a->subtype, "encrypted") == 0)
1491 for (p = a->parts; p; p = p->next) {
1492 if (mutt_can_decode (p))
1497 else if (WithCrypto && a->type == TYPEAPPLICATION) {
1498 if ((WithCrypto & APPLICATION_PGP) && mutt_is_application_pgp (a))
1500 if ((WithCrypto & APPLICATION_SMIME) && mutt_is_application_smime (a))
1507 void multipart_handler (BODY * a, STATE * s)
1514 if (a->encoding == ENCBASE64 || a->encoding == ENCQUOTEDPRINTABLE ||
1515 a->encoding == ENCUUENCODED) {
1516 fstat (fileno (s->fpin), &st);
1517 b = mutt_new_body ();
1518 b->length = (long) st.st_size;
1519 b->parts = mutt_parse_multipart (s->fpin,
1520 mutt_get_parameter ("boundary",
1523 ascii_strcasecmp ("digest",
1529 for (p = b->parts, count = 1; p; p = p->next, count++) {
1530 if (s->flags & M_DISPLAY) {
1531 state_mark_attach (s);
1532 state_printf (s, _("[-- Attachment #%d"), count);
1533 if (p->description || p->filename || p->form_name) {
1534 state_puts (": ", s);
1535 state_puts (p->description ? p->description :
1536 p->filename ? p->filename : p->form_name, s);
1538 state_puts (" --]\n", s);
1540 mutt_pretty_size (length, sizeof (length), p->length);
1542 state_mark_attach (s);
1543 state_printf (s, _("[-- Type: %s/%s, Encoding: %s, Size: %s --]\n"),
1544 TYPE (p), p->subtype, ENCODING (p->encoding), length);
1545 if (!option (OPTWEED)) {
1546 fseek (s->fpin, p->hdr_offset, 0);
1547 mutt_copy_bytes (s->fpin, s->fpout, p->offset - p->hdr_offset);
1550 state_putc ('\n', s);
1553 if (p->description && mutt_can_decode (p))
1554 state_printf (s, "Content-Description: %s\n", p->description);
1557 state_printf (s, "%s: \n", p->form_name);
1560 mutt_body_handler (p, s);
1561 state_putc ('\n', s);
1562 if ((s->flags & M_REPLYING)
1563 && (option (OPTINCLUDEONLYFIRST)) && (s->flags & M_FIRSTDONE))
1567 if (a->encoding == ENCBASE64 || a->encoding == ENCQUOTEDPRINTABLE ||
1568 a->encoding == ENCUUENCODED)
1569 mutt_free_body (&b);
1572 void autoview_handler (BODY * a, STATE * s)
1574 rfc1524_entry *entry = rfc1524_new_entry ();
1575 char buffer[LONG_STRING];
1577 char command[LONG_STRING];
1578 char tempfile[_POSIX_PATH_MAX] = "";
1586 snprintf (type, sizeof (type), "%s/%s", TYPE (a), a->subtype);
1587 rfc1524_mailcap_lookup (a, type, entry, M_AUTOVIEW);
1589 fname = safe_strdup (a->filename);
1590 mutt_sanitize_filename (fname, 1);
1591 rfc1524_expand_filename (entry->nametemplate, fname, tempfile,
1595 if (entry->command) {
1596 strfcpy (command, entry->command, sizeof (command));
1598 /* rfc1524_expand_command returns 0 if the file is required */
1600 rfc1524_expand_command (a, tempfile, type, command, sizeof (command));
1602 if (s->flags & M_DISPLAY) {
1603 state_mark_attach (s);
1604 state_printf (s, _("[-- Autoview using %s --]\n"), command);
1605 mutt_message (_("Invoking autoview command: %s"), command);
1608 if ((fpin = safe_fopen (tempfile, "w+")) == NULL) {
1609 mutt_perror ("fopen");
1610 rfc1524_free_entry (&entry);
1614 mutt_copy_bytes (s->fpin, fpin, a->length);
1617 safe_fclose (&fpin);
1618 thepid = mutt_create_filter (command, NULL, &fpout, &fperr);
1624 thepid = mutt_create_filter_fd (command, NULL, &fpout, &fperr,
1625 fileno (fpin), -1, -1);
1629 mutt_perror _("Can't create filter");
1631 if (s->flags & M_DISPLAY) {
1632 state_mark_attach (s);
1633 state_printf (s, _("[-- Can't run %s. --]\n"), command);
1639 while (fgets (buffer, sizeof (buffer), fpout) != NULL) {
1640 state_puts (s->prefix, s);
1641 state_puts (buffer, s);
1643 /* check for data on stderr */
1644 if (fgets (buffer, sizeof (buffer), fperr)) {
1645 if (s->flags & M_DISPLAY) {
1646 state_mark_attach (s);
1647 state_printf (s, _("[-- Autoview stderr of %s --]\n"), command);
1650 state_puts (s->prefix, s);
1651 state_puts (buffer, s);
1652 while (fgets (buffer, sizeof (buffer), fperr) != NULL) {
1653 state_puts (s->prefix, s);
1654 state_puts (buffer, s);
1659 mutt_copy_stream (fpout, s->fpout);
1660 /* Check for stderr messages */
1661 if (fgets (buffer, sizeof (buffer), fperr)) {
1662 if (s->flags & M_DISPLAY) {
1663 state_mark_attach (s);
1664 state_printf (s, _("[-- Autoview stderr of %s --]\n"), command);
1667 state_puts (buffer, s);
1668 mutt_copy_stream (fperr, s->fpout);
1673 safe_fclose (&fpout);
1674 safe_fclose (&fperr);
1676 mutt_wait_filter (thepid);
1678 safe_fclose (&fpin);
1680 mutt_unlink (tempfile);
1682 if (s->flags & M_DISPLAY)
1683 mutt_clear_error ();
1685 rfc1524_free_entry (&entry);
1688 static void external_body_handler (BODY * b, STATE * s)
1690 const char *access_type;
1691 const char *expiration;
1694 access_type = mutt_get_parameter ("access-type", b->parameter);
1696 if (s->flags & M_DISPLAY) {
1697 state_mark_attach (s);
1699 ("[-- Error: message/external-body has no access-type parameter --]\n"),
1705 expiration = mutt_get_parameter ("expiration", b->parameter);
1707 expire = mutt_parse_date (expiration, NULL);
1711 if (!ascii_strcasecmp (access_type, "x-mutt-deleted")) {
1712 if (s->flags & (M_DISPLAY | M_PRINTING)) {
1714 char pretty_size[10];
1716 state_mark_attach (s);
1717 state_printf (s, _("[-- This %s/%s attachment "),
1718 TYPE (b->parts), b->parts->subtype);
1719 length = mutt_get_parameter ("length", b->parameter);
1721 mutt_pretty_size (pretty_size, sizeof (pretty_size),
1722 strtol (length, NULL, 10));
1723 state_printf (s, _("(size %s bytes) "), pretty_size);
1725 state_puts (_("has been deleted --]\n"), s);
1728 state_mark_attach (s);
1729 state_printf (s, _("[-- on %s --]\n"), expiration);
1731 if (b->parts->filename) {
1732 state_mark_attach (s);
1733 state_printf (s, _("[-- name: %s --]\n"), b->parts->filename);
1736 mutt_copy_hdr (s->fpin, s->fpout, ftell (s->fpin), b->parts->offset,
1737 (option (OPTWEED) ? (CH_WEED | CH_REORDER) : 0) |
1741 else if (expiration && expire < time (NULL)) {
1742 if (s->flags & M_DISPLAY) {
1743 state_mark_attach (s);
1744 state_printf (s, _("[-- This %s/%s attachment is not included, --]\n"),
1745 TYPE (b->parts), b->parts->subtype);
1746 state_attach_puts (_("[-- and the indicated external source has --]\n"
1747 "[-- expired. --]\n"), s);
1749 mutt_copy_hdr (s->fpin, s->fpout, ftell (s->fpin), b->parts->offset,
1750 (option (OPTWEED) ? (CH_WEED | CH_REORDER) : 0) |
1755 if (s->flags & M_DISPLAY) {
1756 state_mark_attach (s);
1758 _("[-- This %s/%s attachment is not included, --]\n"),
1759 TYPE (b->parts), b->parts->subtype);
1760 state_mark_attach (s);
1763 ("[-- and the indicated access-type %s is unsupported --]\n"),
1765 mutt_copy_hdr (s->fpin, s->fpout, ftell (s->fpin), b->parts->offset,
1766 (option (OPTWEED) ? (CH_WEED | CH_REORDER) : 0) |
1772 void mutt_decode_attachment (BODY * b, STATE * s)
1774 int istext = mutt_is_text_part (b);
1775 iconv_t cd = (iconv_t) (-1);
1780 if (s->flags & M_CHARCONV) {
1781 char *charset = mutt_get_parameter ("charset", b->parameter);
1783 if (!option (OPTSTRICTMIME) && !charset)
1784 charset = mutt_get_first_charset (AssumedCharset);
1785 if (charset && Charset)
1786 cd = mutt_iconv_open (Charset, charset, M_ICONV_HOOK_FROM);
1789 if (b->file_charset)
1790 cd = mutt_iconv_open (Charset, b->file_charset, M_ICONV_HOOK_FROM);
1794 fseek (s->fpin, b->offset, 0);
1795 switch (b->encoding) {
1796 case ENCQUOTEDPRINTABLE:
1797 mutt_decode_quoted (s, b->length, istext, cd);
1800 mutt_decode_base64 (s, b->length, istext, cd);
1803 mutt_decode_uuencoded (s, b->length, istext, cd);
1806 mutt_decode_xbit (s, b->length, istext, cd);
1810 if (cd != (iconv_t) (-1))
1814 void mutt_body_handler (BODY * b, STATE * s)
1819 char tempfile[_POSIX_PATH_MAX];
1820 handler_t handler = NULL;
1822 size_t tmplength = 0;
1825 int oflags = s->flags;
1827 /* first determine which handler to use to process this part */
1829 snprintf (type, sizeof (type), "%s/%s", TYPE (b), b->subtype);
1830 if (mutt_is_autoview (b, type)) {
1831 rfc1524_entry *entry = rfc1524_new_entry ();
1833 if (rfc1524_mailcap_lookup (b, type, entry, M_AUTOVIEW)) {
1834 handler = autoview_handler;
1835 s->flags &= ~M_CHARCONV;
1837 rfc1524_free_entry (&entry);
1839 else if (b->type == TYPETEXT) {
1840 if (ascii_strcasecmp ("plain", b->subtype) == 0) {
1841 /* avoid copying this part twice since removing the transfer-encoding is
1842 * the only operation needed.
1844 if ((WithCrypto & APPLICATION_PGP) && mutt_is_application_pgp (b))
1845 handler = crypt_pgp_application_pgp_handler;
1847 if (ascii_strcasecmp
1848 ("flowed", mutt_get_parameter ("format", b->parameter)) == 0)
1849 handler = text_plain_flowed_handler;
1853 else if (ascii_strcasecmp ("enriched", b->subtype) == 0)
1854 handler = text_enriched_handler;
1855 else /* text body type without a handler */
1858 else if (b->type == TYPEMESSAGE) {
1859 if (mutt_is_message_type (b->type, b->subtype))
1860 handler = message_handler;
1861 else if (!ascii_strcasecmp ("delivery-status", b->subtype))
1863 else if (!ascii_strcasecmp ("external-body", b->subtype))
1864 handler = external_body_handler;
1866 else if (b->type == TYPEMULTIPART) {
1869 if (ascii_strcasecmp ("alternative", b->subtype) == 0)
1870 handler = alternative_handler;
1871 else if (WithCrypto && ascii_strcasecmp ("signed", b->subtype) == 0) {
1872 p = mutt_get_parameter ("protocol", b->parameter);
1875 mutt_error (_("Error: multipart/signed has no protocol."));
1877 else if (s->flags & M_VERIFY)
1878 handler = mutt_signed_handler;
1880 else if ((WithCrypto & APPLICATION_PGP)
1881 && mutt_strcasecmp ("encrypted", b->subtype) == 0) {
1882 p = mutt_get_parameter ("protocol", b->parameter);
1886 ("Error: multipart/encrypted has no protocol parameter!"));
1888 else if (ascii_strcasecmp ("application/pgp-encrypted", p) == 0)
1889 handler = crypt_pgp_encrypted_handler;
1893 handler = multipart_handler;
1895 else if (WithCrypto && b->type == TYPEAPPLICATION) {
1896 if ((WithCrypto & APPLICATION_PGP) && mutt_is_application_pgp (b))
1897 handler = crypt_pgp_application_pgp_handler;
1898 if ((WithCrypto & APPLICATION_SMIME) && mutt_is_application_smime (b))
1899 handler = crypt_smime_application_smime_handler;
1903 if (plaintext || handler) {
1904 fseek (s->fpin, b->offset, 0);
1906 /* see if we need to decode this part before processing it */
1907 if (b->encoding == ENCBASE64 || b->encoding == ENCQUOTEDPRINTABLE || b->encoding == ENCUUENCODED || plaintext || mutt_is_text_part (b)) { /* text subtypes may
1909 * set conversion even
1910 * with 8bit encoding.
1912 int origType = b->type;
1913 char *savePrefix = NULL;
1916 /* decode to a tempfile, saving the original destination */
1918 mutt_mktemp (tempfile);
1919 if ((s->fpout = safe_fopen (tempfile, "w")) == NULL) {
1920 mutt_error _("Unable to open temporary file!");
1924 /* decoding the attachment changes the size and offset, so save a copy
1925 * of the "real" values now, and restore them after processing
1927 tmplength = b->length;
1928 tmpoffset = b->offset;
1930 /* if we are decoding binary bodies, we don't want to prefix each
1931 * line with the prefix or else the data will get corrupted.
1933 savePrefix = s->prefix;
1941 mutt_decode_attachment (b, s);
1944 b->length = ftell (s->fpout);
1948 /* restore final destination and substitute the tempfile for input */
1951 s->fpin = safe_fopen (tempfile, "r");
1954 /* restore the prefix */
1955 s->prefix = savePrefix;
1961 /* process the (decoded) body part */
1966 b->length = tmplength;
1967 b->offset = tmpoffset;
1969 /* restore the original source stream */
1974 s->flags |= M_FIRSTDONE;
1976 else if (s->flags & M_DISPLAY) {
1977 state_mark_attach (s);
1978 state_printf (s, _("[-- %s/%s is unsupported "), TYPE (b), b->subtype);
1979 if (!option (OPTVIEWATTACH)) {
1981 (type, sizeof (type),
1982 km_find_func (MENU_PAGER, OP_VIEW_ATTACHMENTS)))
1983 fprintf (s->fpout, _("(use '%s' to view this part)"), type);
1985 fputs (_("(need 'view-attachments' bound to key!)"), s->fpout);
1987 fputs (" --]\n", s->fpout);
1991 s->flags = oflags | (s->flags & M_FIRSTDONE);