2 * Copyright notice from original mutt:
3 * Copyright (C) 1996-2002 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.
19 #include "recvattach.h"
20 #include "mutt_curses.h"
28 #include "mutt_crypt.h"
29 #include "mutt_idna.h"
34 #include "lib/debug.h"
45 #include <sys/utsname.h>
48 # include "mutt_libesmtp.h"
49 #endif /* USE_LIBESMTP */
55 #ifdef HAVE_SYSEXITS_H
57 #else /* Make sure EX_OK is defined <philiph@pobox.com> */
61 /* If you are debugging this file, comment out the following line. */
70 extern char RFC822Specials[];
72 #define DISPOSITION(X) X==DISPATTACH?"attachment":"inline"
74 const char MimeSpecials[] = "@.,;:<>[]\\\"()?/= \t";
77 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
78 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',
79 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's',
80 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7',
84 static char MsgIdPfx = 'A';
86 static void transform_to_7bit (BODY * a, FILE * fpin);
88 static void encode_quoted (FGETCONV * fc, FILE * fout, int istext)
91 char line[77], savechar;
93 while ((c = fgetconv (fc)) != EOF) {
94 /* Wrap the line if needed. */
95 if (linelen == 76 && ((istext && c != '\n') || !istext)) {
96 /* If the last character is "quoted", then be sure to move all three
97 * characters to the next line. Otherwise, just move the last
100 if (line[linelen - 3] == '=') {
101 line[linelen - 3] = 0;
106 line[1] = line[linelen - 2];
107 line[2] = line[linelen - 1];
111 savechar = line[linelen - 1];
112 line[linelen - 1] = '=';
121 /* Escape lines that begin with/only contain "the message separator". */
122 if (linelen == 4 && !str_ncmp ("From", line, 4)) {
123 strfcpy (line, "=46rom", sizeof (line));
126 else if (linelen == 4 && !str_ncmp ("from", line, 4)) {
127 strfcpy (line, "=66rom", sizeof (line));
130 else if (linelen == 1 && line[0] == '.') {
131 strfcpy (line, "=2E", sizeof (line));
136 if (c == '\n' && istext) {
137 /* Check to make sure there is no trailing space on this line. */
139 && (line[linelen - 1] == ' ' || line[linelen - 1] == '\t')) {
141 sprintf (line + linelen - 1, "=%2.2X",
142 (unsigned char) line[linelen - 1]);
146 int savechar = line[linelen - 1];
148 line[linelen - 1] = '=';
151 fprintf (fout, "\n=%2.2X", (unsigned char) savechar);
161 else if (c != 9 && (c < 32 || c > 126 || c == '=')) {
162 /* Check to make sure there is enough room for the quoted character.
163 * If not, wrap to the next line.
166 line[linelen++] = '=';
172 sprintf (line + linelen, "=%2.2X", (unsigned char) c);
176 /* Don't worry about wrapping the line here. That will happen during
177 * the next iteration when I'll also know what the next character is.
183 /* Take care of anything left in the buffer */
185 if (line[linelen - 1] == ' ' || line[linelen - 1] == '\t') {
186 /* take care of trailing whitespace */
188 sprintf (line + linelen - 1, "=%2.2X",
189 (unsigned char) line[linelen - 1]);
191 savechar = line[linelen - 1];
192 line[linelen - 1] = '=';
196 sprintf (line, "=%2.2X", (unsigned char) savechar);
205 static char b64_buffer[3];
206 static short b64_num;
207 static short b64_linelen;
209 static void b64_flush (FILE * fout)
216 if (b64_linelen >= 72) {
221 for (i = b64_num; i < 3; i++)
222 b64_buffer[i] = '\0';
224 fputc (B64Chars[(b64_buffer[0] >> 2) & 0x3f], fout);
227 [((b64_buffer[0] & 0x3) << 4) | ((b64_buffer[1] >> 4) & 0xf)], fout);
232 [((b64_buffer[1] & 0xf) << 2) | ((b64_buffer[2] >> 6) & 0x3)],
236 fputc (B64Chars[b64_buffer[2] & 0x3f], fout);
241 while (b64_linelen % 4) {
250 static void b64_putc (char c, FILE * fout)
255 b64_buffer[b64_num++] = c;
259 static void encode_base64 (FGETCONV * fc, FILE * fout, int istext)
263 b64_num = b64_linelen = 0;
265 while ((ch = fgetconv (fc)) != EOF) {
266 if (istext && ch == '\n' && ch1 != '\r')
267 b64_putc ('\r', fout);
275 static void encode_8bit (FGETCONV * fc, FILE * fout, int istext)
279 while ((ch = fgetconv (fc)) != EOF)
284 int mutt_write_mime_header (BODY * a, FILE * f)
294 fprintf (f, "Content-Type: %s/%s", TYPE (a), a->subtype);
297 len = 25 + str_len (a->subtype); /* approximate len. of content-type */
299 for (p = a->parameter; p; p = p->next) {
308 tmp = str_dup (p->value);
309 encode = rfc2231_encode_string (&tmp);
310 rfc822_cat (buffer, sizeof (buffer), tmp, MimeSpecials);
312 /* Dirty hack to make messages readable by Outlook Express
313 * for the Mac: force quotes around the boundary parameter
314 * even when they aren't needed.
317 if (!ascii_strcasecmp (p->attribute, "boundary")
318 && !strcmp (buffer, tmp))
319 snprintf (buffer, sizeof (buffer), "\"%s\"", tmp);
323 tmplen = str_len (buffer) + str_len (p->attribute) + 1;
325 if (len + tmplen + 2 > 76) {
334 fprintf (f, "%s%s=%s", p->attribute, encode ? "*" : "", buffer);
342 fprintf (f, "Content-Description: %s\n", a->description);
344 fprintf (f, "Content-Disposition: %s", DISPOSITION (a->disposition));
347 if (!(fn = a->d_filename))
353 /* Strip off the leading path... */
354 if ((t = strrchr (fn, '/')))
361 encode = rfc2231_encode_string (&tmp);
362 rfc822_cat (buffer, sizeof (buffer), tmp, MimeSpecials);
364 fprintf (f, "; filename%s=%s", encode ? "*" : "", buffer);
370 if (a->encoding != ENC7BIT)
371 fprintf (f, "Content-Transfer-Encoding: %s\n", ENCODING (a->encoding));
373 /* Do NOT add the terminator here!!! */
374 return (ferror (f) ? -1 : 0);
377 # define write_as_text_part(a) (mutt_is_text_part(a) \
378 || ((WithCrypto & APPLICATION_PGP)\
379 && mutt_is_application_pgp(a)))
381 int mutt_write_mime_body (BODY * a, FILE * f)
383 char *p, boundary[SHORT_STRING];
384 char send_charset[SHORT_STRING];
389 if (a->type == TYPEMULTIPART) {
390 /* First, find the boundary to use */
391 if (!(p = mutt_get_parameter ("boundary", a->parameter))) {
392 debug_print (1, ("no boundary parameter found!\n"));
393 mutt_error _("No boundary parameter found! [report this error]");
397 strfcpy (boundary, p, sizeof (boundary));
399 for (t = a->parts; t; t = t->next) {
400 fprintf (f, "\n--%s\n", boundary);
401 if (mutt_write_mime_header (t, f) == -1)
404 if (mutt_write_mime_body (t, f) == -1)
407 fprintf (f, "\n--%s--\n", boundary);
408 return (ferror (f) ? -1 : 0);
411 /* This is pretty gross, but it's the best solution for now... */
412 if ((WithCrypto & APPLICATION_PGP)
413 && a->type == TYPEAPPLICATION
414 && str_cmp (a->subtype, "pgp-encrypted") == 0) {
415 fputs ("Version: 1\n", f);
419 if ((fpin = fopen (a->filename, "r")) == NULL) {
420 debug_print (1, ("%s no longer exists!\n", a->filename));
421 mutt_error (_("%s no longer exists!"), a->filename);
425 if (a->type == TYPETEXT && (!a->noconv))
426 fc = fgetconv_open (fpin, a->file_charset,
427 mutt_get_body_charset (send_charset,
428 sizeof (send_charset), a), 0);
430 fc = fgetconv_open (fpin, 0, 0, 0);
432 if (a->encoding == ENCQUOTEDPRINTABLE)
433 encode_quoted (fc, f, write_as_text_part (a));
434 else if (a->encoding == ENCBASE64)
435 encode_base64 (fc, f, write_as_text_part (a));
436 else if (a->type == TYPETEXT && (!a->noconv))
437 encode_8bit (fc, f, write_as_text_part (a));
439 mutt_copy_stream (fpin, f);
441 fgetconv_close (&fc);
444 return (ferror (f) ? -1 : 0);
447 #undef write_as_text_part
449 #define BOUNDARYLEN 16
450 void mutt_generate_boundary (PARAMETER ** parm)
452 char rs[BOUNDARYLEN + 1];
457 for (i = 0; i < BOUNDARYLEN; i++)
458 *p++ = B64Chars[LRAND () % sizeof (B64Chars)];
461 mutt_set_parameter ("boundary", rs, parm);
473 static void update_content_info (CONTENT * info, CONTENT_STATE * s, char *d,
477 int whitespace = s->whitespace;
479 int linelen = s->linelen;
480 int was_cr = s->was_cr;
482 if (!d) { /* This signals EOF */
485 if (linelen > info->linemax)
486 info->linemax = linelen;
491 for (; dlen; d++, dlen--) {
504 if (linelen > info->linemax)
505 info->linemax = linelen;
520 if (linelen > info->linemax)
521 info->linemax = linelen;
526 else if (ch == '\r') {
534 else if (ch == '\t' || ch == '\f') {
538 else if (ch < 32 || ch == 127)
542 if ((ch == 'F') || (ch == 'f'))
552 if (linelen == 2 && ch != 'r')
554 else if (linelen == 3 && ch != 'o')
556 else if (linelen == 4) {
569 if (ch != ' ' && ch != '\t')
574 s->whitespace = whitespace;
576 s->linelen = linelen;
581 /* Define as 1 if iconv sometimes returns -1(EILSEQ) instead of transcribing. */
582 #define BUGGY_ICONV 1
585 * Find the best charset conversion of the file from fromcode into one
586 * of the tocodes. If successful, set *tocode and CONTENT *info and
587 * return the number of characters converted inexactly. If no
588 * conversion was possible, return -1.
590 * We convert via UTF-8 in order to avoid the condition -1(EINVAL),
591 * which would otherwise prevent us from knowing the number of inexact
592 * conversions. Where the candidate target charset is UTF-8 we avoid
593 * doing the second conversion because iconv_open("UTF-8", "UTF-8")
594 * fails with some libraries.
596 * We assume that the output from iconv is never more than 4 times as
597 * long as the input for any pair of charsets we might be interested
600 static size_t convert_file_to (FILE * file, const char *fromcode,
601 int ncodes, const char **tocodes,
602 int *tocode, CONTENT * info)
606 char bufi[256], bufu[512], bufo[4 * sizeof (bufi)];
607 ICONV_CONST char *ib, *ub;
609 size_t ibl, obl, ubl, ubl1, n, ret;
612 CONTENT_STATE *states;
615 cd1 = mutt_iconv_open ("UTF-8", fromcode, 0);
616 if (cd1 == (iconv_t) (-1))
619 cd = mem_calloc (ncodes, sizeof (iconv_t));
620 score = mem_calloc (ncodes, sizeof (size_t));
621 states = mem_calloc (ncodes, sizeof (CONTENT_STATE));
622 infos = mem_calloc (ncodes, sizeof (CONTENT));
624 for (i = 0; i < ncodes; i++)
625 if (ascii_strcasecmp (tocodes[i], "UTF-8"))
626 cd[i] = mutt_iconv_open (tocodes[i], "UTF-8", 0);
628 /* Special case for conversion to UTF-8 */
629 cd[i] = (iconv_t) (-1), score[i] = (size_t) (-1);
635 /* Try to fill input buffer */
636 n = fread (bufi + ibl, 1, sizeof (bufi) - ibl, file);
639 /* Convert to UTF-8 */
641 ob = bufu, obl = sizeof (bufu);
642 n = iconv (cd1, ibl ? &ib : 0, &ibl, &ob, &obl);
643 assert (n == (size_t) (-1) || !n || ICONV_NONTRANS);
644 if (n == (size_t) (-1) &&
645 ((errno != EINVAL && errno != E2BIG) || ib == bufi)) {
646 assert (errno == EILSEQ ||
647 (errno == EINVAL && ib == bufi && ibl < sizeof (bufi)));
653 /* Convert from UTF-8 */
654 for (i = 0; i < ncodes; i++)
655 if (cd[i] != (iconv_t) (-1) && score[i] != (size_t) (-1)) {
656 ub = bufu, ubl = ubl1;
657 ob = bufo, obl = sizeof (bufo);
658 n = iconv (cd[i], (ibl || ubl) ? &ub : 0, &ubl, &ob, &obl);
659 if (n == (size_t) (-1)) {
660 assert (errno == E2BIG ||
661 (BUGGY_ICONV && (errno == EILSEQ || errno == ENOENT)));
662 score[i] = (size_t) (-1);
666 update_content_info (&infos[i], &states[i], bufo, ob - bufo);
669 else if (cd[i] == (iconv_t) (-1) && score[i] == (size_t) (-1))
670 /* Special case for conversion to UTF-8 */
671 update_content_info (&infos[i], &states[i], bufu, ubl1);
674 /* Save unused input */
675 memmove (bufi, ib, ibl);
676 else if (!ubl1 && ib < bufi + sizeof (bufi)) {
683 /* Find best score */
685 for (i = 0; i < ncodes; i++) {
686 if (cd[i] == (iconv_t) (-1) && score[i] == (size_t) (-1)) {
687 /* Special case for conversion to UTF-8 */
692 else if (cd[i] == (iconv_t) (-1) || score[i] == (size_t) (-1))
694 else if (ret == (size_t) (-1) || score[i] < ret) {
701 if (ret != (size_t) (-1)) {
702 memcpy (info, &infos[*tocode], sizeof (CONTENT));
703 update_content_info (info, &states[*tocode], 0, 0); /* EOF */
707 for (i = 0; i < ncodes; i++)
708 if (cd[i] != (iconv_t) (-1))
720 #endif /* !HAVE_ICONV */
724 * Find the first of the fromcodes that gives a valid conversion and
725 * the best charset conversion of the file into one of the tocodes. If
726 * successful, set *fromcode and *tocode to dynamically allocated
727 * strings, set CONTENT *info, and return the number of characters
728 * converted inexactly. If no conversion was possible, return -1.
730 * Both fromcodes and tocodes may be colon-separated lists of charsets.
731 * However, if fromcode is zero then fromcodes is assumed to be the
732 * name of a single charset even if it contains a colon.
734 static size_t convert_file_from_to (FILE * file,
735 const char *fromcodes,
736 const char *tocodes, char **fromcode,
737 char **tocode, CONTENT * info)
745 /* Count the tocodes */
747 for (c = tocodes; c; c = c1 ? c1 + 1 : 0) {
748 if ((c1 = strchr (c, ':')) == c)
754 tcode = mem_malloc (ncodes * sizeof (char *));
755 for (c = tocodes, i = 0; c; c = c1 ? c1 + 1 : 0, i++) {
756 if ((c1 = strchr (c, ':')) == c)
758 tcode[i] = str_substrdup (c, c1);
763 /* Try each fromcode in turn */
764 for (c = fromcodes; c; c = c1 ? c1 + 1 : 0) {
765 if ((c1 = strchr (c, ':')) == c)
767 fcode = str_substrdup (c, c1);
769 ret = convert_file_to (file, fcode, ncodes, (const char **) tcode,
771 if (ret != (size_t) (-1)) {
781 /* There is only one fromcode */
782 ret = convert_file_to (file, fromcodes, ncodes, (const char **) tcode,
784 if (ret != (size_t) (-1)) {
791 for (i = 0; i < ncodes; i++)
792 mem_free (&tcode[i]);
800 * Analyze the contents of a file to determine which MIME encoding to use.
801 * Also set the body charset, sometimes, or not.
803 CONTENT *mutt_get_content_info (const char *fname, BODY * b)
808 char *fromcode = NULL;
819 if (stat (fname, &sb) == -1) {
820 mutt_error (_("Can't stat %s: %s"), fname, strerror (errno));
824 if (!S_ISREG (sb.st_mode)) {
825 mutt_error (_("%s isn't a regular file."), fname);
829 if ((fp = fopen (fname, "r")) == NULL) {
830 debug_print (1, ("%s: %s (errno %d).\n", fname, strerror (errno), errno));
834 info = mem_calloc (1, sizeof (CONTENT));
835 memset (&state, 0, sizeof (state));
837 if (b != NULL && b->type == TYPETEXT && (!b->noconv && !b->force_charset)) {
838 char *chs = mutt_get_parameter ("charset", b->parameter);
839 char *fchs = b->use_disp ? ((FileCharset && *FileCharset) ?
840 FileCharset : Charset) : Charset;
841 if (Charset && (chs || SendCharset) &&
842 convert_file_from_to (fp, fchs, chs ? chs : SendCharset,
843 &fromcode, &tocode, info) != (size_t) (-1)) {
845 mutt_canonical_charset (chsbuf, sizeof (chsbuf), tocode);
846 mutt_set_parameter ("charset", chsbuf, &b->parameter);
848 b->file_charset = fromcode;
856 while ((r = fread (buffer, 1, sizeof (buffer), fp)))
857 update_content_info (info, &state, buffer, r);
858 update_content_info (info, &state, 0, 0);
862 if (b != NULL && b->type == TYPETEXT && (!b->noconv && !b->force_charset))
863 mutt_set_parameter ("charset", (!info->hibin ? "us-ascii" :
865 && !mutt_is_us_ascii (Charset) ? Charset :
866 "unknown-8bit"), &b->parameter);
871 /* Given a file with path ``s'', see if there is a registered MIME type.
872 * returns the major MIME type, and copies the subtype to ``d''. First look
873 * for ~/.mime.types, then look in a system mime.types if we can find one.
874 * The longest match is used so that we can match `ps.gz' when `gz' also
878 int mutt_lookup_mime_type (BODY * att, const char *path)
882 char buf[LONG_STRING];
883 char subtype[STRING], xtype[STRING];
885 int szf, sze, cur_sze;
893 szf = str_len (path);
895 for (count = 0; count < 3; count++) {
897 * can't use strtok() because we use it in an inner loop below, so use
898 * a switch statement here instead.
902 snprintf (buf, sizeof (buf), "%s/.mime.types", NONULL (Homedir));
905 strfcpy (buf, SYSCONFDIR "/muttng-mime.types", sizeof (buf));
908 strfcpy (buf, PKGDATADIR "/mime.types", sizeof (buf));
911 debug_print (1, ("Internal error, count = %d.\n", count));
912 goto bye; /* shouldn't happen */
915 if ((f = fopen (buf, "r")) != NULL) {
916 while (fgets (buf, sizeof (buf) - 1, f) != NULL) {
917 /* weed out any comments */
918 if ((p = strchr (buf, '#')))
921 /* remove any leading space. */
925 /* position on the next field in this line */
926 if ((p = strpbrk (ct, " \t")) == NULL)
931 /* cycle through the file extensions */
932 while ((p = strtok (p, " \t\n"))) {
934 if ((sze > cur_sze) && (szf >= sze) &&
935 (str_casecmp (path + szf - sze, p) == 0
936 || ascii_strcasecmp (path + szf - sze, p) == 0) && (szf == sze
943 /* get the content-type */
945 if ((p = strchr (ct, '/')) == NULL) {
946 /* malformed line, just skip it. */
951 for (q = p; *q && !ISSPACE (*q); q++);
953 str_substrcpy (subtype, p, q, sizeof (subtype));
955 if ((type = mutt_check_mime_type (ct)) == TYPEOTHER)
956 strfcpy (xtype, ct, sizeof (xtype));
969 if (type != TYPEOTHER || *xtype != '\0') {
971 str_replace (&att->subtype, subtype);
972 str_replace (&att->xtype, xtype);
978 void mutt_message_to_7bit (BODY * a, FILE * fp)
980 char temp[_POSIX_PATH_MAX];
986 if (!a->filename && fp)
988 else if (!a->filename || !(fpin = fopen (a->filename, "r"))) {
989 mutt_error (_("Could not open %s"), a->filename ? a->filename : "(null)");
994 if (stat (a->filename, &sb) == -1) {
995 mutt_perror ("stat");
998 a->length = sb.st_size;
1002 if (!(fpout = safe_fopen (temp, "w+"))) {
1003 mutt_perror ("fopen");
1007 fseek (fpin, a->offset, 0);
1008 a->parts = mutt_parse_messageRFC822 (fpin, a);
1010 transform_to_7bit (a->parts, fpin);
1012 mutt_copy_hdr (fpin, fpout, a->offset, a->offset + a->length,
1013 CH_MIME | CH_NONEWLINE | CH_XMIT, NULL);
1015 fputs ("Mime-Version: 1.0\n", fpout);
1016 mutt_write_mime_header (a->parts, fpout);
1017 fputc ('\n', fpout);
1018 mutt_write_mime_body (a->parts, fpout);
1030 a->encoding = ENC7BIT;
1031 a->d_filename = a->filename;
1032 if (a->filename && a->unlink)
1033 unlink (a->filename);
1034 a->filename = str_dup (temp);
1036 if (stat (a->filename, &sb) == -1) {
1037 mutt_perror ("stat");
1040 a->length = sb.st_size;
1041 mutt_free_body (&a->parts);
1042 a->hdr->content = NULL;
1045 static void transform_to_7bit (BODY * a, FILE * fpin)
1047 char buff[_POSIX_PATH_MAX];
1051 memset (&s, 0, sizeof (s));
1052 for (; a; a = a->next) {
1053 if (a->type == TYPEMULTIPART) {
1054 if (a->encoding != ENC7BIT)
1055 a->encoding = ENC7BIT;
1057 transform_to_7bit (a->parts, fpin);
1059 else if (mutt_is_message_type (a->type, a->subtype)) {
1060 mutt_message_to_7bit (a, fpin);
1064 a->force_charset = 1;
1067 if ((s.fpout = safe_fopen (buff, "w")) == NULL) {
1068 mutt_perror ("fopen");
1072 mutt_decode_attachment (a, &s);
1074 a->d_filename = a->filename;
1075 a->filename = str_dup (buff);
1077 if (stat (a->filename, &sb) == -1) {
1078 mutt_perror ("stat");
1081 a->length = sb.st_size;
1083 mutt_update_encoding (a);
1084 if (a->encoding == ENC8BIT)
1085 a->encoding = ENCQUOTEDPRINTABLE;
1086 else if (a->encoding == ENCBINARY)
1087 a->encoding = ENCBASE64;
1092 /* determine which Content-Transfer-Encoding to use */
1093 static void mutt_set_encoding (BODY * b, CONTENT * info)
1095 char send_charset[SHORT_STRING];
1097 if (b->type == TYPETEXT) {
1099 mutt_get_body_charset (send_charset, sizeof (send_charset), b);
1100 if ((info->lobin && ascii_strncasecmp (chsname, "iso-2022", 8))
1101 || info->linemax > 990 || (info->from && option (OPTENCODEFROM)))
1102 b->encoding = ENCQUOTEDPRINTABLE;
1103 else if (info->hibin)
1104 b->encoding = option (OPTALLOW8BIT) ? ENC8BIT : ENCQUOTEDPRINTABLE;
1106 b->encoding = ENC7BIT;
1108 else if (b->type == TYPEMESSAGE || b->type == TYPEMULTIPART) {
1109 if (info->lobin || info->hibin) {
1110 if (option (OPTALLOW8BIT) && !info->lobin)
1111 b->encoding = ENC8BIT;
1113 mutt_message_to_7bit (b, NULL);
1116 b->encoding = ENC7BIT;
1118 else if (b->type == TYPEAPPLICATION
1119 && ascii_strcasecmp (b->subtype, "pgp-keys") == 0)
1120 b->encoding = ENC7BIT;
1123 if (info->lobin || info->hibin || info->binary || info->linemax > 990
1124 || info->cr || ( /* option (OPTENCODEFROM) && */ info->from))
1127 /* Determine which encoding is smaller */
1128 if (1.33 * (float) (info->lobin + info->hibin + info->ascii) <
1129 3.0 * (float) (info->lobin + info->hibin) + (float) info->ascii)
1130 b->encoding = ENCBASE64;
1132 b->encoding = ENCQUOTEDPRINTABLE;
1136 b->encoding = ENC7BIT;
1140 void mutt_stamp_attachment (BODY * a)
1142 a->stamp = time (NULL);
1145 /* Get a body's character set */
1147 char *mutt_get_body_charset (char *d, size_t dlen, BODY * b)
1151 if (b && b->type != TYPETEXT)
1155 p = mutt_get_parameter ("charset", b->parameter);
1158 mutt_canonical_charset (d, dlen, NONULL (p));
1160 strfcpy (d, "us-ascii", dlen);
1166 /* Assumes called from send mode where BODY->filename points to actual file */
1167 void mutt_update_encoding (BODY * a)
1170 char chsbuff[STRING];
1172 /* override noconv when it's us-ascii */
1173 if (mutt_is_us_ascii (mutt_get_body_charset (chsbuff, sizeof (chsbuff), a)))
1176 if (!a->force_charset && !a->noconv)
1177 mutt_delete_parameter ("charset", &a->parameter);
1179 if ((info = mutt_get_content_info (a->filename, a)) == NULL)
1182 mutt_set_encoding (a, info);
1183 mutt_stamp_attachment (a);
1185 mem_free (&a->content);
1190 BODY *mutt_make_message_attach (CONTEXT * ctx, HEADER * hdr, int attach_msg)
1192 char buffer[LONG_STRING];
1195 int cmflags, chflags;
1196 int pgp = WithCrypto ? hdr->security : 0;
1199 if ((option (OPTMIMEFORWDECODE) || option (OPTFORWDECRYPT)) &&
1200 (hdr->security & ENCRYPT)) {
1201 if (!crypt_valid_passphrase (hdr->security))
1206 mutt_mktemp (buffer);
1207 if ((fp = safe_fopen (buffer, "w+")) == NULL)
1210 body = mutt_new_body ();
1211 body->type = TYPEMESSAGE;
1212 body->subtype = str_dup ("rfc822");
1213 body->filename = str_dup (buffer);
1216 body->disposition = DISPINLINE;
1219 mutt_parse_mime_message (ctx, hdr);
1224 /* If we are attaching a message, ignore OPTMIMEFORWDECODE */
1225 if (!attach_msg && option (OPTMIMEFORWDECODE)) {
1226 chflags |= CH_MIME | CH_TXTPLAIN;
1227 cmflags = M_CM_DECODE | M_CM_CHARCONV;
1228 if ((WithCrypto & APPLICATION_PGP))
1230 if ((WithCrypto & APPLICATION_SMIME))
1231 pgp &= ~SMIMEENCRYPT;
1233 else if (WithCrypto && option (OPTFORWDECRYPT) && (hdr->security & ENCRYPT)) {
1234 if ((WithCrypto & APPLICATION_PGP)
1235 && mutt_is_multipart_encrypted (hdr->content)) {
1236 chflags |= CH_MIME | CH_NONEWLINE;
1237 cmflags = M_CM_DECODE_PGP;
1240 else if ((WithCrypto & APPLICATION_PGP)
1241 && (mutt_is_application_pgp (hdr->content) & PGPENCRYPT)) {
1242 chflags |= CH_MIME | CH_TXTPLAIN;
1243 cmflags = M_CM_DECODE | M_CM_CHARCONV;
1246 else if ((WithCrypto & APPLICATION_SMIME)
1247 && mutt_is_application_smime (hdr->content) & SMIMEENCRYPT) {
1248 chflags |= CH_MIME | CH_TXTPLAIN;
1249 cmflags = M_CM_DECODE | M_CM_CHARCONV;
1250 pgp &= ~SMIMEENCRYPT;
1254 mutt_copy_message (fp, ctx, hdr, cmflags, chflags);
1259 body->hdr = mutt_new_header ();
1260 body->hdr->offset = 0;
1261 /* we don't need the user headers here */
1262 body->hdr->env = mutt_read_rfc822_header (fp, body->hdr, 0, 0);
1264 body->hdr->security = pgp;
1265 mutt_update_encoding (body);
1266 body->parts = body->hdr->content;
1273 BODY *mutt_make_file_attach (const char *path)
1278 att = mutt_new_body ();
1279 att->filename = str_dup (path);
1281 /* Attempt to determine the appropriate content-type based on the filename
1288 mutt_lookup_mime_type (buf, sizeof (buf), xbuf, sizeof (xbuf),
1289 path)) != TYPEOTHER || *xbuf != '\0') {
1291 att->subtype = str_dup (buf);
1292 att->xtype = str_dup (xbuf);
1297 mutt_lookup_mime_type (att, path);
1301 if ((info = mutt_get_content_info (path, att)) == NULL) {
1302 mutt_free_body (&att);
1306 if (!att->subtype) {
1307 if (info->lobin == 0
1308 || (info->lobin + info->hibin + info->ascii) / info->lobin >= 10) {
1310 * Statistically speaking, there should be more than 10% "lobin"
1311 * chars if this is really a binary file...
1313 att->type = TYPETEXT;
1314 att->subtype = str_dup ("plain");
1317 att->type = TYPEAPPLICATION;
1318 att->subtype = str_dup ("octet-stream");
1322 mutt_update_encoding (att);
1326 static int get_toplevel_encoding (BODY * a)
1330 for (; a; a = a->next) {
1331 if (a->encoding == ENCBINARY)
1333 else if (a->encoding == ENC8BIT)
1340 BODY *mutt_make_multipart (BODY * b)
1344 new = mutt_new_body ();
1345 new->type = TYPEMULTIPART;
1346 new->subtype = str_dup ("mixed");
1347 new->encoding = get_toplevel_encoding (b);
1348 mutt_generate_boundary (&new->parameter);
1350 new->disposition = DISPINLINE;
1356 /* remove the multipart body if it exists */
1357 BODY *mutt_remove_multipart (BODY * b)
1365 mutt_free_body (&t);
1370 char *mutt_make_date (char *s, size_t len)
1372 time_t t = time (NULL);
1373 struct tm *l = localtime (&t);
1374 time_t tz = mutt_local_tz (t);
1378 snprintf (s, len, "Date: %s, %d %s %d %02d:%02d:%02d %+03d%02d\n",
1379 Weekdays[l->tm_wday], l->tm_mday, Months[l->tm_mon],
1380 l->tm_year + 1900, l->tm_hour, l->tm_min, l->tm_sec,
1381 (int) tz / 60, (int) abs (tz) % 60);
1385 /* wrapper around mutt_write_address() so we can handle very large
1386 recipient lists without needing a huge temporary buffer in memory */
1387 void mutt_write_address_list (ADDRESS * adr, FILE * fp, int linelen,
1391 char buf[LONG_STRING];
1399 rfc822_write_address (buf, sizeof (buf), adr, display);
1400 len = str_len (buf);
1401 if (count && linelen + len > 74) {
1403 linelen = len + 8; /* tab is usually about 8 spaces... */
1406 if (count && adr->mailbox) {
1414 if (!adr->group && adr->next && adr->next->mailbox) {
1424 /* arbitrary number of elements to grow the array by */
1429 /* need to write the list in reverse because they are stored in reverse order
1430 * when parsed to speed up threading
1432 void mutt_write_references (LIST * r, FILE * f)
1435 int refcnt = 0, refmax = 0;
1437 for (; (TrimRef == 0 || refcnt < TrimRef) && r; r = r->next) {
1438 if (refcnt == refmax)
1439 mem_realloc (&ref, (refmax += REF_INC) * sizeof (LIST *));
1443 while (refcnt-- > 0) {
1445 fputs (ref[refcnt]->data, f);
1451 /* Note: all RFC2047 encoding should be done outside of this routine, except
1452 * for the "real name." This will allow this routine to be used more than
1453 * once, if necessary.
1455 * Likewise, all IDN processing should happen outside of this routine.
1457 * mode == 1 => "lite" mode (used for edit_hdrs)
1458 * mode == 0 => normal mode. write full header + MIME headers
1459 * mode == -1 => write just the envelope info (used for postponing messages)
1461 * privacy != 0 => will omit any headers which may identify the user.
1462 * Output generated is suitable for being sent through
1463 * anonymous remailer chains.
1467 int mutt_write_rfc822_header (FILE * fp, ENVELOPE * env, BODY * attach,
1468 int mode, int privacy)
1470 char buffer[LONG_STRING];
1472 LIST *tmp = env->userhdrs;
1473 int has_agent = 0; /* user defined user-agent header field exists */
1476 if (!option (OPTNEWSSEND))
1478 if (mode == 0 && !privacy)
1479 fputs (mutt_make_date (buffer, sizeof (buffer)), fp);
1481 /* OPTUSEFROM is not consulted here so that we can still write a From:
1482 * field if the user sets it with the `my_hdr' command
1484 if (env->from && !privacy) {
1486 rfc822_write_address (buffer, sizeof (buffer), env->from, 0);
1487 fprintf (fp, "From: %s\n", buffer);
1492 mutt_write_address_list (env->to, fp, 4, 0);
1496 if (!option (OPTNEWSSEND))
1498 fputs ("To: \n", fp);
1502 mutt_write_address_list (env->cc, fp, 4, 0);
1506 if (!option (OPTNEWSSEND))
1508 fputs ("Cc: \n", fp);
1511 if (mode != 0 || option (OPTWRITEBCC)) {
1512 fputs ("Bcc: ", fp);
1513 mutt_write_address_list (env->bcc, fp, 5, 0);
1518 if (!option (OPTNEWSSEND))
1520 fputs ("Bcc: \n", fp);
1523 if (env->newsgroups)
1524 fprintf (fp, "Newsgroups: %s\n", env->newsgroups);
1525 else if (mode == 1 && option (OPTNEWSSEND))
1526 fputs ("Newsgroups: \n", fp);
1528 if (env->followup_to)
1529 fprintf (fp, "Followup-To: %s\n", env->followup_to);
1530 else if (mode == 1 && option (OPTNEWSSEND))
1531 fputs ("Followup-To: \n", fp);
1533 if (env->x_comment_to)
1534 fprintf (fp, "X-Comment-To: %s\n", env->x_comment_to);
1535 else if (mode == 1 && option (OPTNEWSSEND) && option (OPTXCOMMENTTO))
1536 fputs ("X-Comment-To: \n", fp);
1540 fprintf (fp, "Subject: %s\n", env->subject);
1542 fputs ("Subject: \n", fp);
1544 /* save message id if the user has set it */
1545 if (env->message_id && !privacy)
1546 fprintf (fp, "Message-ID: %s\n", env->message_id);
1548 if (env->reply_to) {
1549 fputs ("Reply-To: ", fp);
1550 mutt_write_address_list (env->reply_to, fp, 10, 0);
1553 fputs ("Reply-To: \n", fp);
1555 if (env->mail_followup_to)
1557 if (!option (OPTNEWSSEND))
1560 fputs ("Mail-Followup-To: ", fp);
1561 mutt_write_address_list (env->mail_followup_to, fp, 18, 0);
1565 if (env->references) {
1566 fputs ("References:", fp);
1567 mutt_write_references (env->references, fp);
1571 /* Add the MIME headers */
1572 fputs ("Mime-Version: 1.0\n", fp);
1573 mutt_write_mime_header (attach, fp);
1576 if (env->in_reply_to) {
1577 fputs ("In-Reply-To:", fp);
1578 mutt_write_references (env->in_reply_to, fp);
1582 /* Add any user defined headers */
1583 for (; tmp; tmp = tmp->next) {
1584 if ((p = strchr (tmp->data, ':'))) {
1588 continue; /* don't emit empty fields. */
1590 /* check to see if the user has overridden the user-agent field */
1591 if (!ascii_strncasecmp ("user-agent", tmp->data, 10)) {
1597 fputs (tmp->data, fp);
1602 if (mode == 0 && !privacy && option (OPTXMAILER) && !has_agent) {
1606 if (OperatingSystem != NULL) {
1607 os = OperatingSystem;
1610 if (uname (&un) == -1) {
1617 /* Add a vanity header */
1618 fprintf (fp, "User-Agent: %s (%s)\n", mutt_make_version (0), os);
1621 return (ferror (fp) == 0 ? 0 : -1);
1624 static void encode_headers (LIST * h)
1630 for (; h; h = h->next) {
1631 if (!(p = strchr (h->data, ':')))
1642 rfc2047_encode_string (&tmp);
1643 mem_realloc (&h->data,
1644 str_len (h->data) + 2 + str_len (tmp) + 1);
1646 sprintf (h->data + i, ": %s", NONULL (tmp)); /* __SPRINTF_CHECKED__ */
1652 const char *mutt_fqdn (short may_hide_host)
1656 if (Fqdn && Fqdn[0] != '@') {
1659 if (may_hide_host && option (OPTHIDDENHOST)) {
1660 if ((p = strchr (Fqdn, '.')))
1663 /* sanity check: don't hide the host if
1664 * the fqdn is something like detebe.org.
1667 if (!p || !(q = strchr (p, '.')))
1675 static char mutt_normalized_char (char c)
1679 if (strchr (".!#$%&'*+-/=?^_`{|}~", c))
1681 return '.'; /* normalized character (we're stricter than RFC2822, 3.6.4) */
1684 static void mutt_gen_localpart (char *buf, unsigned int len, char *fmt)
1688 char tmp[SHORT_STRING];
1695 for (; *fmt; ++fmt) {
1701 snprintf (tmp, sizeof (tmp), "%02d", tm->tm_mday);
1702 str_ncat (buf, len, tmp, 2);
1705 snprintf (tmp, sizeof (tmp), "%02d", tm->tm_hour);
1706 str_ncat (buf, len, tmp, 2);
1709 snprintf (tmp, sizeof (tmp), "%02d", tm->tm_mon + 1);
1710 str_ncat (buf, len, tmp, 2);
1713 snprintf (tmp, sizeof (tmp), "%02d", tm->tm_min);
1714 str_ncat (buf, len, tmp, 2);
1717 snprintf (tmp, sizeof (tmp), "%lo", (unsigned long) now);
1718 str_ncat (buf, len, tmp, str_len (tmp));
1721 snprintf (tmp, sizeof (tmp), "%u", (unsigned int) getpid ());
1722 str_ncat (buf, len, tmp, str_len (tmp));
1725 snprintf (tmp, sizeof (tmp), "%c", MsgIdPfx);
1726 MsgIdPfx = (MsgIdPfx == 'Z') ? 'A' : MsgIdPfx + 1;
1727 str_ncat (buf, len, tmp, 1);
1730 snprintf (tmp, sizeof (tmp), "%u", (unsigned int) rand ());
1731 str_ncat (buf, len, tmp, str_len (tmp));
1734 snprintf (tmp, sizeof (tmp), "%x", (unsigned int) rand ());
1735 str_ncat (buf, len, tmp, str_len (tmp));
1738 snprintf (tmp, sizeof (tmp), "%02d", tm->tm_sec);
1739 str_ncat (buf, len, tmp, 2);
1742 snprintf (tmp, sizeof (tmp), "%u", (unsigned int) now);
1743 str_ncat (buf, len, tmp, str_len (tmp));
1746 snprintf (tmp, sizeof (tmp), "%x", (unsigned int) now);
1747 str_ncat (buf, len, tmp, str_len (tmp));
1750 snprintf (tmp, sizeof (tmp), "%04d", tm->tm_year + 1900); /* this will break in the year 10000 ;-) */
1751 str_ncat (buf, len, tmp, 4);
1754 str_ncat (buf, len, "%", 1);
1757 str_ncat (buf, len, ".", 1); /* invalid formats are replaced by '.' */
1764 c = mutt_normalized_char (*fmt); /* @todo: filter out invalid characters */
1765 str_ncat (buf, len, &c, 1);
1770 char *mutt_gen_msgid (void)
1772 char buf[SHORT_STRING];
1773 char localpart[SHORT_STRING];
1774 unsigned int localpart_length;
1777 if (!(fqdn = mutt_fqdn (0)))
1778 fqdn = NONULL (Hostname);
1780 localpart_length = sizeof (buf) - str_len (fqdn) - 4; /* the 4 characters are '<', '@', '>' and '\0' */
1782 mutt_gen_localpart (localpart, localpart_length, MsgIdFormat);
1784 snprintf (buf, sizeof (buf), "<%s@%s>", localpart, fqdn);
1785 return (str_dup (buf));
1788 static RETSIGTYPE alarm_handler (int sig)
1793 /* invoke sendmail in a subshell
1794 path (in) path to program to execute
1795 args (in) arguments to pass to program
1796 msg (in) temp file containing message to send
1797 tempfile (out) if sendmail is put in the background, this points
1798 to the temporary file containing the stdout of the
1801 send_msg (const char *path, char **args, const char *msg, char **tempfile)
1807 mutt_block_signals_system ();
1810 /* we also don't want to be stopped right now */
1811 sigaddset (&set, SIGTSTP);
1812 sigprocmask (SIG_BLOCK, &set, NULL);
1814 if (SendmailWait >= 0) {
1815 char tmp[_POSIX_PATH_MAX];
1818 *tempfile = str_dup (tmp);
1821 if ((pid = fork ()) == 0) {
1822 struct sigaction act, oldalrm;
1824 /* save parent's ID before setsid() */
1827 /* we want the delivery to continue even after the main process dies,
1828 * so we put ourselves into another session right away
1832 /* next we close all open files */
1833 #if defined(OPEN_MAX)
1834 for (fd = 0; fd < OPEN_MAX; fd++)
1836 #elif defined(_POSIX_OPEN_MAX)
1837 for (fd = 0; fd < _POSIX_OPEN_MAX; fd++)
1845 /* now the second fork() */
1846 if ((pid = fork ()) == 0) {
1847 /* "msg" will be opened as stdin */
1848 if (open (msg, O_RDONLY, 0) < 0) {
1854 if (SendmailWait >= 0) {
1855 /* *tempfile will be opened as stdout */
1856 if (open (*tempfile, O_WRONLY | O_APPEND | O_CREAT | O_EXCL, 0600) <
1859 /* redirect stderr to *tempfile too */
1864 if (open ("/dev/null", O_WRONLY | O_APPEND) < 0) /* stdout */
1866 if (open ("/dev/null", O_RDWR | O_APPEND) < 0) /* stderr */
1873 else if (pid == -1) {
1875 mem_free (tempfile);
1879 /* SendmailWait > 0: interrupt waitpid() after SendmailWait seconds
1880 * SendmailWait = 0: wait forever
1881 * SendmailWait < 0: don't wait
1883 if (SendmailWait > 0) {
1885 act.sa_handler = alarm_handler;
1887 /* need to make sure waitpid() is interrupted on SIGALRM */
1888 act.sa_flags = SA_INTERRUPT;
1892 sigemptyset (&act.sa_mask);
1893 sigaction (SIGALRM, &act, &oldalrm);
1894 alarm (SendmailWait);
1896 else if (SendmailWait < 0)
1897 _exit (0xff & EX_OK);
1899 if (waitpid (pid, &st, 0) > 0) {
1900 st = WIFEXITED (st) ? WEXITSTATUS (st) : S_ERR;
1901 if (SendmailWait && st == (0xff & EX_OK)) {
1902 unlink (*tempfile); /* no longer needed */
1903 mem_free (tempfile);
1907 st = (SendmailWait > 0 && errno == EINTR && SigAlrm) ? S_BKG : S_ERR;
1908 if (SendmailWait > 0) {
1910 mem_free (tempfile);
1914 /* reset alarm; not really needed, but... */
1916 sigaction (SIGALRM, &oldalrm, NULL);
1918 if (kill (ppid, 0) == -1 && errno == ESRCH) {
1919 /* the parent is already dead */
1921 mem_free (tempfile);
1927 sigprocmask (SIG_UNBLOCK, &set, NULL);
1929 if (pid != -1 && waitpid (pid, &st, 0) > 0)
1930 st = WIFEXITED (st) ? WEXITSTATUS (st) : S_ERR; /* return child status */
1932 st = S_ERR; /* error */
1934 mutt_unblock_signals_system (1);
1939 static char **add_args (char **args, size_t * argslen, size_t * argsmax,
1942 for (; addr; addr = addr->next) {
1943 /* weed out group mailboxes, since those are for display only */
1944 if (addr->mailbox && !addr->group) {
1945 if (*argslen == *argsmax)
1946 mem_realloc (&args, (*argsmax += 5) * sizeof (char *));
1947 args[(*argslen)++] = addr->mailbox;
1953 static char **add_option (char **args, size_t * argslen, size_t * argsmax,
1956 if (*argslen == *argsmax)
1957 mem_realloc (&args, (*argsmax += 5) * sizeof (char *));
1958 args[(*argslen)++] = s;
1962 static int mutt_invoke_sendmail (ADDRESS * from, /* the sender */
1963 ADDRESS * to, ADDRESS * cc, ADDRESS * bcc, /* recips */
1964 const char *msg, /* file containing message */
1966 { /* message contains 8bit chars */
1967 char *ps = NULL, *path = NULL, *s = NULL, *childout = NULL;
1969 size_t argslen = 0, argsmax = 0;
1973 if (option (OPTNEWSSEND)) {
1974 char cmd[LONG_STRING];
1976 mutt_FormatString (cmd, sizeof (cmd), NONULL (Inews), nntp_format_str, 0,
1979 i = nntp_post (msg);
1988 s = str_dup (Sendmail);
1992 while ((ps = strtok (ps, " "))) {
1993 if (argslen == argsmax)
1994 mem_realloc (&args, sizeof (char *) * (argsmax += 5));
1997 args[argslen++] = ps;
1999 path = str_dup (ps);
2000 ps = strrchr (ps, '/');
2005 args[argslen++] = ps;
2012 if (!option (OPTNEWSSEND)) {
2014 if (eightbit && option (OPTUSE8BITMIME))
2015 args = add_option (args, &argslen, &argsmax, "-B8BITMIME");
2017 if (option (OPTENVFROM) && from && !from->next) {
2018 args = add_option (args, &argslen, &argsmax, "-f");
2019 args = add_args (args, &argslen, &argsmax, from);
2022 args = add_option (args, &argslen, &argsmax, "-N");
2023 args = add_option (args, &argslen, &argsmax, DsnNotify);
2026 args = add_option (args, &argslen, &argsmax, "-R");
2027 args = add_option (args, &argslen, &argsmax, DsnReturn);
2029 args = add_option (args, &argslen, &argsmax, "--");
2030 args = add_args (args, &argslen, &argsmax, to);
2031 args = add_args (args, &argslen, &argsmax, cc);
2032 args = add_args (args, &argslen, &argsmax, bcc);
2037 if (argslen == argsmax)
2038 mem_realloc (&args, sizeof (char *) * (++argsmax));
2040 args[argslen++] = NULL;
2042 if ((i = send_msg (path, args, msg, &childout)) != (EX_OK & 0xff)) {
2044 const char *e = mutt_strsysexit (i);
2046 e = mutt_strsysexit (i);
2047 mutt_error (_("Error sending message, child exited %d (%s)."), i,
2052 if (stat (childout, &st) == 0 && st.st_size > 0)
2053 mutt_do_pager (_("Output of the delivery process"), childout, 0,
2061 mem_free (&childout);
2066 if (i == (EX_OK & 0xff))
2068 else if (i == S_BKG)
2075 int mutt_invoke_mta (ADDRESS * from, /* the sender */
2076 ADDRESS * to, ADDRESS * cc, ADDRESS * bcc, /* recips */
2077 const char *msg, /* file containing message */
2079 { /* message contains 8bit chars */
2082 return mutt_libesmtp_invoke (from, to, cc, bcc, msg, eightbit);
2085 return mutt_invoke_sendmail (from, to, cc, bcc, msg, eightbit);
2088 /* appends string 'b' to string 'a', and returns the pointer to the new
2090 char *mutt_append_string (char *a, const char *b)
2092 size_t la = str_len (a);
2094 mem_realloc (&a, la + str_len (b) + 1);
2095 strcpy (a + la, b); /* __STRCPY_CHECKED__ */
2099 /* returns 1 if char `c' needs to be quoted to protect from shell
2100 interpretation when executing commands in a subshell */
2101 #define INVALID_CHAR(c) (!isalnum ((unsigned char)c) && !strchr ("@.+-_,:", c))
2103 /* returns 1 if string `s' contains characters which could cause problems
2104 when used on a command line to execute a command */
2105 int mutt_needs_quote (const char *s)
2108 if (INVALID_CHAR (*s))
2115 /* Quote a string to prevent shell escapes when this string is used on the
2116 command line to send mail. */
2117 char *mutt_quote_string (const char *s)
2122 rlen = str_len (s) + 3;
2123 pr = r = (char *) mem_malloc (rlen);
2126 if (INVALID_CHAR (*s)) {
2129 mem_realloc (&r, ++rlen);
2140 /* For postponing (!final) do the necessary encodings only */
2141 void mutt_prepare_envelope (ENVELOPE * env, int final)
2143 char buffer[LONG_STRING];
2146 if (env->bcc && !(env->to || env->cc)) {
2147 /* some MTA's will put an Apparently-To: header field showing the Bcc:
2148 * recipients if there is no To: or Cc: field, so attempt to suppress
2149 * it by using an empty To: field.
2151 env->to = rfc822_new_address ();
2153 env->to->next = rfc822_new_address ();
2156 rfc822_cat (buffer, sizeof (buffer), "undisclosed-recipients",
2159 env->to->mailbox = str_dup (buffer);
2162 mutt_set_followup_to (env);
2164 if (!env->message_id && MsgIdFormat && *MsgIdFormat)
2165 env->message_id = mutt_gen_msgid ();
2168 /* Take care of 8-bit => 7-bit conversion. */
2169 rfc2047_encode_adrlist (env->to, "To");
2170 rfc2047_encode_adrlist (env->cc, "Cc");
2171 rfc2047_encode_adrlist (env->bcc, "Bcc");
2172 rfc2047_encode_adrlist (env->from, "From");
2173 rfc2047_encode_adrlist (env->mail_followup_to, "Mail-Followup-To");
2174 rfc2047_encode_adrlist (env->reply_to, "Reply-To");
2178 if (!option (OPTNEWSSEND) || option (OPTMIMESUBJECT))
2181 rfc2047_encode_string (&env->subject);
2183 encode_headers (env->userhdrs);
2186 void mutt_unprepare_envelope (ENVELOPE * env)
2190 for (item = env->userhdrs; item; item = item->next)
2191 rfc2047_decode (&item->data);
2193 rfc822_free_address (&env->mail_followup_to);
2195 /* back conversions */
2196 rfc2047_decode_adrlist (env->to);
2197 rfc2047_decode_adrlist (env->cc);
2198 rfc2047_decode_adrlist (env->bcc);
2199 rfc2047_decode_adrlist (env->from);
2200 rfc2047_decode_adrlist (env->reply_to);
2201 rfc2047_decode (&env->subject);
2204 static int _mutt_bounce_message (FILE * fp, HEADER * h, ADDRESS * to,
2205 const char *resent_from, ADDRESS * env_from)
2209 char date[SHORT_STRING], tempfile[_POSIX_PATH_MAX];
2210 MESSAGE *msg = NULL;
2213 /* Try to bounce each message out, aborting if we get any failures. */
2214 for (i = 0; i < Context->msgcount; i++)
2215 if (Context->hdrs[i]->tagged)
2217 _mutt_bounce_message (fp, Context->hdrs[i], to, resent_from,
2222 /* If we failed to open a message, return with error */
2223 if (!fp && (msg = mx_open_message (Context, h->msgno)) == NULL)
2229 mutt_mktemp (tempfile);
2230 if ((f = safe_fopen (tempfile, "w")) != NULL) {
2231 int ch_flags = CH_XMIT | CH_NONEWLINE | CH_NOQFROM;
2233 if (!option (OPTBOUNCEDELIVERED))
2234 ch_flags |= CH_WEED_DELIVERED;
2236 fseek (fp, h->offset, 0);
2237 fprintf (f, "Resent-From: %s", resent_from);
2238 fprintf (f, "\nResent-%s", mutt_make_date (date, sizeof (date)));
2239 if (MsgIdFormat && *MsgIdFormat)
2240 fprintf (f, "Resent-Message-ID: %s\n", mutt_gen_msgid ());
2241 fputs ("Resent-To: ", f);
2242 mutt_write_address_list (to, f, 11, 0);
2243 mutt_copy_header (fp, h, f, ch_flags, NULL);
2245 mutt_copy_bytes (fp, f, h->content->length);
2248 ret = mutt_invoke_mta (env_from, to, NULL, NULL, tempfile,
2249 h->content->encoding == ENC8BIT);
2253 mx_close_message (&msg);
2258 int mutt_bounce_message (FILE * fp, HEADER * h, ADDRESS * to)
2261 const char *fqdn = mutt_fqdn (1);
2262 char resent_from[STRING];
2266 resent_from[0] = '\0';
2267 from = mutt_default_from ();
2270 rfc822_qualify (from, fqdn);
2272 rfc2047_encode_adrlist (from, "Resent-From");
2273 if (mutt_addrlist_to_idna (from, &err)) {
2274 mutt_error (_("Bad IDN %s while preparing resent-from."), err);
2277 rfc822_write_address (resent_from, sizeof (resent_from), from, 0);
2280 unset_option (OPTNEWSSEND);
2283 ret = _mutt_bounce_message (fp, h, to, resent_from, from);
2285 rfc822_free_address (&from);
2291 /* given a list of addresses, return a list of unique addresses */
2292 ADDRESS *mutt_remove_duplicates (ADDRESS * addr)
2294 ADDRESS *top = addr;
2295 ADDRESS **last = ⊤
2300 for (tmp = top, dup = 0; tmp && tmp != addr; tmp = tmp->next) {
2301 if (tmp->mailbox && addr->mailbox &&
2302 !ascii_strcasecmp (addr->mailbox, tmp->mailbox)) {
2309 debug_print (2, ("Removing %s\n", addr->mailbox));
2314 rfc822_free_address (&addr);
2327 static void set_noconv_flags (BODY * b, short flag)
2329 for (; b; b = b->next) {
2330 if (b->type == TYPEMESSAGE || b->type == TYPEMULTIPART)
2331 set_noconv_flags (b->parts, flag);
2332 else if (b->type == TYPETEXT && b->noconv) {
2334 mutt_set_parameter ("x-mutt-noconv", "yes", &b->parameter);
2336 mutt_delete_parameter ("x-mutt-noconv", &b->parameter);
2341 int mutt_write_fcc (const char *path, HEADER * hdr, const char *msgid,
2342 int post, char *fcc)
2346 char tempfile[_POSIX_PATH_MAX];
2347 FILE *tempfp = NULL;
2351 set_noconv_flags (hdr->content, 1);
2353 if (mx_open_mailbox (path, M_APPEND | M_QUIET, &f) == NULL) {
2354 debug_print (1, ("unable to open mailbox %s in append-mode, aborting.\n", path));
2358 /* We need to add a Content-Length field to avoid problems where a line in
2359 * the message body begins with "From "
2361 if (f.magic == M_MMDF || f.magic == M_MBOX) {
2362 mutt_mktemp (tempfile);
2363 if ((tempfp = safe_fopen (tempfile, "w+")) == NULL) {
2364 mutt_perror (tempfile);
2365 mx_close_mailbox (&f, NULL);
2370 hdr->read = !post; /* make sure to put it in the `cur' directory (maildir) */
2371 if ((msg = mx_open_new_message (&f, hdr, M_ADD_FROM)) == NULL) {
2372 mx_close_mailbox (&f, NULL);
2376 /* post == 1 => postpone message. Set mode = -1 in mutt_write_rfc822_header()
2377 * post == 0 => Normal mode. Set mode = 0 in mutt_write_rfc822_header()
2379 mutt_write_rfc822_header (msg->fp, hdr->env, hdr->content, post ? -post : 0,
2382 /* (postponment) if this was a reply of some sort, <msgid> contians the
2383 * Message-ID: of message replied to. Save it using a special X-Mutt-
2384 * header so it can be picked up if the message is recalled at a later
2385 * point in time. This will allow the message to be marked as replied if
2386 * the same mailbox is still open.
2389 fprintf (msg->fp, "X-Mutt-References: %s\n", msgid);
2391 /* (postponment) save the Fcc: using a special X-Mutt- header so that
2392 * it can be picked up when the message is recalled
2395 fprintf (msg->fp, "X-Mutt-Fcc: %s\n", fcc);
2396 fprintf (msg->fp, "Status: RO\n");
2400 /* (postponment) if the mail is to be signed or encrypted, save this info */
2401 if ((WithCrypto & APPLICATION_PGP)
2402 && post && (hdr->security & APPLICATION_PGP)) {
2403 fputs ("X-Mutt-PGP: ", msg->fp);
2404 if (hdr->security & ENCRYPT)
2405 fputc ('E', msg->fp);
2406 if (hdr->security & SIGN) {
2407 fputc ('S', msg->fp);
2408 if (PgpSignAs && *PgpSignAs)
2409 fprintf (msg->fp, "<%s>", PgpSignAs);
2411 if (hdr->security & INLINE)
2412 fputc ('I', msg->fp);
2413 fputc ('\n', msg->fp);
2416 /* (postponment) if the mail is to be signed or encrypted, save this info */
2417 if ((WithCrypto & APPLICATION_SMIME)
2418 && post && (hdr->security & APPLICATION_SMIME)) {
2419 fputs ("X-Mutt-SMIME: ", msg->fp);
2420 if (hdr->security & ENCRYPT) {
2421 fputc ('E', msg->fp);
2422 if (SmimeCryptAlg && *SmimeCryptAlg)
2423 fprintf (msg->fp, "C<%s>", SmimeCryptAlg);
2425 if (hdr->security & SIGN) {
2426 fputc ('S', msg->fp);
2427 if (SmimeDefaultKey && *SmimeDefaultKey)
2428 fprintf (msg->fp, "<%s>", SmimeDefaultKey);
2430 if (hdr->security & INLINE)
2431 fputc ('I', msg->fp);
2432 fputc ('\n', msg->fp);
2436 /* (postponement) if the mail is to be sent through a mixmaster
2437 * chain, save that information
2440 if (post && hdr->chain && hdr->chain) {
2443 fputs ("X-Mutt-Mix:", msg->fp);
2444 for (p = hdr->chain; p; p = p->next)
2445 fprintf (msg->fp, " %s", (char *) p->data);
2447 fputc ('\n', msg->fp);
2452 char sasha[LONG_STRING];
2455 mutt_write_mime_body (hdr->content, tempfp);
2457 /* make sure the last line ends with a newline. Emacs doesn't ensure
2458 * this will happen, and it can cause problems parsing the mailbox
2461 fseek (tempfp, -1, 2);
2462 if (fgetc (tempfp) != '\n') {
2463 fseek (tempfp, 0, 2);
2464 fputc ('\n', tempfp);
2468 if (ferror (tempfp)) {
2469 debug_print (1, ("%s: write failed.\n", tempfile));
2472 mx_commit_message (msg, &f); /* XXX - really? */
2473 mx_close_message (&msg);
2474 mx_close_mailbox (&f, NULL);
2478 /* count the number of lines */
2480 while (fgets (sasha, sizeof (sasha), tempfp) != NULL)
2482 fprintf (msg->fp, "Content-Length: %ld\n", (long) ftell (tempfp));
2483 fprintf (msg->fp, "Lines: %d\n\n", lines);
2485 /* copy the body and clean up */
2487 r = mutt_copy_stream (tempfp, msg->fp);
2488 if (fclose (tempfp) != 0)
2490 /* if there was an error, leave the temp version */
2495 fputc ('\n', msg->fp); /* finish off the header */
2496 r = mutt_write_mime_body (hdr->content, msg->fp);
2499 if (mx_commit_message (msg, &f) != 0)
2501 mx_close_message (&msg);
2502 mx_close_mailbox (&f, NULL);
2505 set_noconv_flags (hdr->content, 0);