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.
16 #include <lib-lib/mem.h>
17 #include <lib-lib/ascii.h>
18 #include <lib-lib/str.h>
19 #include <lib-lib/macros.h>
20 #include <lib-lib/file.h>
24 #include "recvattach.h"
25 #include "mutt_curses.h"
33 #include "mutt_crypt.h"
34 #include "mutt_idna.h"
36 #include "lib/debug.h"
47 #include <sys/utsname.h>
50 # include "mutt_libesmtp.h"
51 #endif /* USE_LIBESMTP */
57 #ifdef HAVE_SYSEXITS_H
59 #else /* Make sure EX_OK is defined <philiph@pobox.com> */
63 /* If you are debugging this file, comment out the following line. */
72 extern char RFC822Specials[];
74 #define DISPOSITION(X) X==DISPATTACH?"attachment":"inline"
76 const char MimeSpecials[] = "@.,;:<>[]\\\"()?/= \t";
79 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
80 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',
81 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's',
82 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7',
86 static char MsgIdPfx = 'A';
88 static void transform_to_7bit (BODY * a, FILE * fpin);
90 static void encode_quoted (FGETCONV * fc, FILE * fout, int istext)
93 char line[77], savechar;
95 while ((c = fgetconv (fc)) != EOF) {
96 /* Wrap the line if needed. */
97 if (linelen == 76 && ((istext && c != '\n') || !istext)) {
98 /* If the last character is "quoted", then be sure to move all three
99 * characters to the next line. Otherwise, just move the last
102 if (line[linelen - 3] == '=') {
103 line[linelen - 3] = 0;
108 line[1] = line[linelen - 2];
109 line[2] = line[linelen - 1];
113 savechar = line[linelen - 1];
114 line[linelen - 1] = '=';
123 /* Escape lines that begin with/only contain "the message separator". */
124 if (linelen == 4 && !str_ncmp ("From", line, 4)) {
125 strfcpy (line, "=46rom", sizeof (line));
128 else if (linelen == 4 && !str_ncmp ("from", line, 4)) {
129 strfcpy (line, "=66rom", sizeof (line));
132 else if (linelen == 1 && line[0] == '.') {
133 strfcpy (line, "=2E", sizeof (line));
138 if (c == '\n' && istext) {
139 /* Check to make sure there is no trailing space on this line. */
141 && (line[linelen - 1] == ' ' || line[linelen - 1] == '\t')) {
143 sprintf (line + linelen - 1, "=%2.2X",
144 (unsigned char) line[linelen - 1]);
148 int savechar = line[linelen - 1];
150 line[linelen - 1] = '=';
153 fprintf (fout, "\n=%2.2X", (unsigned char) savechar);
163 else if (c != 9 && (c < 32 || c > 126 || c == '=')) {
164 /* Check to make sure there is enough room for the quoted character.
165 * If not, wrap to the next line.
168 line[linelen++] = '=';
174 sprintf (line + linelen, "=%2.2X", (unsigned char) c);
178 /* Don't worry about wrapping the line here. That will happen during
179 * the next iteration when I'll also know what the next character is.
185 /* Take care of anything left in the buffer */
187 if (line[linelen - 1] == ' ' || line[linelen - 1] == '\t') {
188 /* take care of trailing whitespace */
190 sprintf (line + linelen - 1, "=%2.2X",
191 (unsigned char) line[linelen - 1]);
193 savechar = line[linelen - 1];
194 line[linelen - 1] = '=';
198 sprintf (line, "=%2.2X", (unsigned char) savechar);
207 static char b64_buffer[3];
208 static short b64_num;
209 static short b64_linelen;
211 static void b64_flush (FILE * fout)
218 if (b64_linelen >= 72) {
223 for (i = b64_num; i < 3; i++)
224 b64_buffer[i] = '\0';
226 fputc (B64Chars[(b64_buffer[0] >> 2) & 0x3f], fout);
229 [((b64_buffer[0] & 0x3) << 4) | ((b64_buffer[1] >> 4) & 0xf)], fout);
234 [((b64_buffer[1] & 0xf) << 2) | ((b64_buffer[2] >> 6) & 0x3)],
238 fputc (B64Chars[b64_buffer[2] & 0x3f], fout);
243 while (b64_linelen % 4) {
252 static void b64_putc (char c, FILE * fout)
257 b64_buffer[b64_num++] = c;
261 static void encode_base64 (FGETCONV * fc, FILE * fout, int istext)
265 b64_num = b64_linelen = 0;
267 while ((ch = fgetconv (fc)) != EOF) {
268 if (istext && ch == '\n' && ch1 != '\r')
269 b64_putc ('\r', fout);
277 static void encode_8bit (FGETCONV * fc, FILE * fout, int istext)
281 while ((ch = fgetconv (fc)) != EOF)
286 int mutt_write_mime_header (BODY * a, FILE * f)
296 fprintf (f, "Content-Type: %s/%s", TYPE (a), a->subtype);
299 len = 25 + m_strlen(a->subtype); /* approximate len. of content-type */
301 for (p = a->parameter; p; p = p->next) {
310 tmp = m_strdup(p->value);
311 encode = rfc2231_encode_string (&tmp);
312 rfc822_cat (buffer, sizeof (buffer), tmp, MimeSpecials);
314 /* Dirty hack to make messages readable by Outlook Express
315 * for the Mac: force quotes around the boundary parameter
316 * even when they aren't needed.
319 if (!ascii_strcasecmp (p->attribute, "boundary")
320 && !strcmp (buffer, tmp))
321 snprintf (buffer, sizeof (buffer), "\"%s\"", tmp);
325 tmplen = m_strlen(buffer) + m_strlen(p->attribute) + 1;
327 if (len + tmplen + 2 > 76) {
336 fprintf (f, "%s%s=%s", p->attribute, encode ? "*" : "", buffer);
344 fprintf (f, "Content-Description: %s\n", a->description);
346 fprintf (f, "Content-Disposition: %s", DISPOSITION (a->disposition));
349 if (!(fn = a->d_filename))
355 /* Strip off the leading path... */
356 if ((t = strrchr (fn, '/')))
363 encode = rfc2231_encode_string (&tmp);
364 rfc822_cat (buffer, sizeof (buffer), tmp, MimeSpecials);
366 fprintf (f, "; filename%s=%s", encode ? "*" : "", buffer);
372 if (a->encoding != ENC7BIT)
373 fprintf (f, "Content-Transfer-Encoding: %s\n", ENCODING (a->encoding));
375 /* Do NOT add the terminator here!!! */
376 return (ferror (f) ? -1 : 0);
379 # define write_as_text_part(a) (mutt_is_text_part(a) \
380 || ((WithCrypto & APPLICATION_PGP)\
381 && mutt_is_application_pgp(a)))
383 int mutt_write_mime_body (BODY * a, FILE * f)
385 char *p, boundary[SHORT_STRING];
386 char send_charset[SHORT_STRING];
391 if (a->type == TYPEMULTIPART) {
392 /* First, find the boundary to use */
393 if (!(p = mutt_get_parameter ("boundary", a->parameter))) {
394 debug_print (1, ("no boundary parameter found!\n"));
395 mutt_error _("No boundary parameter found! [report this error]");
399 strfcpy (boundary, p, sizeof (boundary));
401 for (t = a->parts; t; t = t->next) {
402 fprintf (f, "\n--%s\n", boundary);
403 if (mutt_write_mime_header (t, f) == -1)
406 if (mutt_write_mime_body (t, f) == -1)
409 fprintf (f, "\n--%s--\n", boundary);
410 return (ferror (f) ? -1 : 0);
413 /* This is pretty gross, but it's the best solution for now... */
414 if ((WithCrypto & APPLICATION_PGP)
415 && a->type == TYPEAPPLICATION
416 && m_strcmp(a->subtype, "pgp-encrypted") == 0) {
417 fputs ("Version: 1\n", f);
421 if ((fpin = fopen (a->filename, "r")) == NULL) {
422 debug_print (1, ("%s no longer exists!\n", a->filename));
423 mutt_error (_("%s no longer exists!"), a->filename);
427 if (a->type == TYPETEXT && (!a->noconv))
428 fc = fgetconv_open (fpin, a->file_charset,
429 mutt_get_body_charset (send_charset,
430 sizeof (send_charset), a), 0);
432 fc = fgetconv_open (fpin, 0, 0, 0);
434 if (a->encoding == ENCQUOTEDPRINTABLE)
435 encode_quoted (fc, f, write_as_text_part (a));
436 else if (a->encoding == ENCBASE64)
437 encode_base64 (fc, f, write_as_text_part (a));
438 else if (a->type == TYPETEXT && (!a->noconv))
439 encode_8bit (fc, f, write_as_text_part (a));
441 mutt_copy_stream (fpin, f);
443 fgetconv_close (&fc);
446 return (ferror (f) ? -1 : 0);
449 #undef write_as_text_part
451 #define BOUNDARYLEN 16
452 void mutt_generate_boundary (PARAMETER ** parm)
454 char rs[BOUNDARYLEN + 1];
459 for (i = 0; i < BOUNDARYLEN; i++)
460 *p++ = B64Chars[LRAND () % sizeof (B64Chars)];
463 mutt_set_parameter ("boundary", rs, parm);
475 static void update_content_info (CONTENT * info, CONTENT_STATE * s, char *d,
479 int whitespace = s->whitespace;
481 int linelen = s->linelen;
482 int was_cr = s->was_cr;
484 if (!d) { /* This signals EOF */
487 if (linelen > info->linemax)
488 info->linemax = linelen;
493 for (; dlen; d++, dlen--) {
506 if (linelen > info->linemax)
507 info->linemax = linelen;
522 if (linelen > info->linemax)
523 info->linemax = linelen;
528 else if (ch == '\r') {
536 else if (ch == '\t' || ch == '\f') {
540 else if (ch < 32 || ch == 127)
544 if ((ch == 'F') || (ch == 'f'))
554 if (linelen == 2 && ch != 'r')
556 else if (linelen == 3 && ch != 'o')
558 else if (linelen == 4) {
571 if (ch != ' ' && ch != '\t')
576 s->whitespace = whitespace;
578 s->linelen = linelen;
583 /* Define as 1 if iconv sometimes returns -1(EILSEQ) instead of transcribing. */
584 #define BUGGY_ICONV 1
587 * Find the best charset conversion of the file from fromcode into one
588 * of the tocodes. If successful, set *tocode and CONTENT *info and
589 * return the number of characters converted inexactly. If no
590 * conversion was possible, return -1.
592 * We convert via UTF-8 in order to avoid the condition -1(EINVAL),
593 * which would otherwise prevent us from knowing the number of inexact
594 * conversions. Where the candidate target charset is UTF-8 we avoid
595 * doing the second conversion because iconv_open("UTF-8", "UTF-8")
596 * fails with some libraries.
598 * We assume that the output from iconv is never more than 4 times as
599 * long as the input for any pair of charsets we might be interested
602 static size_t convert_file_to (FILE * file, const char *fromcode,
603 int ncodes, const char **tocodes,
604 int *tocode, CONTENT * info)
608 char bufi[256], bufu[512], bufo[4 * sizeof (bufi)];
611 size_t ibl, obl, ubl, ubl1, n, ret;
614 CONTENT_STATE *states;
617 cd1 = mutt_iconv_open ("UTF-8", fromcode, 0);
618 if (cd1 == (iconv_t) (-1))
621 cd = p_new(iconv_t, ncodes);
622 score = p_new(size_t, ncodes);
623 states = p_new(CONTENT_STATE, ncodes);
624 infos = p_new(CONTENT, ncodes);
626 for (i = 0; i < ncodes; i++)
627 if (ascii_strcasecmp (tocodes[i], "UTF-8"))
628 cd[i] = mutt_iconv_open (tocodes[i], "UTF-8", 0);
630 /* Special case for conversion to UTF-8 */
631 cd[i] = (iconv_t) (-1), score[i] = (size_t) (-1);
637 /* Try to fill input buffer */
638 n = fread (bufi + ibl, 1, sizeof (bufi) - ibl, file);
641 /* Convert to UTF-8 */
643 ob = bufu, obl = sizeof (bufu);
644 n = my_iconv(cd1, ibl ? &ib : 0, &ibl, &ob, &obl);
645 assert (n == (size_t) (-1) || !n || ICONV_NONTRANS);
646 if (n == (size_t) (-1) &&
647 ((errno != EINVAL && errno != E2BIG) || ib == bufi)) {
648 assert (errno == EILSEQ ||
649 (errno == EINVAL && ib == bufi && ibl < sizeof (bufi)));
655 /* Convert from UTF-8 */
656 for (i = 0; i < ncodes; i++)
657 if (cd[i] != (iconv_t) (-1) && score[i] != (size_t) (-1)) {
658 ub = bufu, ubl = ubl1;
659 ob = bufo, obl = sizeof (bufo);
660 n = my_iconv(cd[i], (ibl || ubl) ? &ub : 0, &ubl, &ob, &obl);
661 if (n == (size_t) (-1)) {
662 assert (errno == E2BIG ||
663 (BUGGY_ICONV && (errno == EILSEQ || errno == ENOENT)));
664 score[i] = (size_t) (-1);
668 update_content_info (&infos[i], &states[i], bufo, ob - bufo);
671 else if (cd[i] == (iconv_t) (-1) && score[i] == (size_t) (-1))
672 /* Special case for conversion to UTF-8 */
673 update_content_info (&infos[i], &states[i], bufu, ubl1);
676 /* Save unused input */
677 memmove (bufi, ib, ibl);
678 else if (!ubl1 && ib < bufi + sizeof (bufi)) {
685 /* Find best score */
687 for (i = 0; i < ncodes; i++) {
688 if (cd[i] == (iconv_t) (-1) && score[i] == (size_t) (-1)) {
689 /* Special case for conversion to UTF-8 */
694 else if (cd[i] == (iconv_t) (-1) || score[i] == (size_t) (-1))
696 else if (ret == (size_t) (-1) || score[i] < ret) {
703 if (ret != (size_t) (-1)) {
704 memcpy (info, &infos[*tocode], sizeof (CONTENT));
705 update_content_info (info, &states[*tocode], 0, 0); /* EOF */
709 for (i = 0; i < ncodes; i++)
710 if (cd[i] != (iconv_t) (-1))
722 #endif /* !HAVE_ICONV */
726 * Find the first of the fromcodes that gives a valid conversion and
727 * the best charset conversion of the file into one of the tocodes. If
728 * successful, set *fromcode and *tocode to dynamically allocated
729 * strings, set CONTENT *info, and return the number of characters
730 * converted inexactly. If no conversion was possible, return -1.
732 * Both fromcodes and tocodes may be colon-separated lists of charsets.
733 * However, if fromcode is zero then fromcodes is assumed to be the
734 * name of a single charset even if it contains a colon.
736 static size_t convert_file_from_to (FILE * file,
737 const char *fromcodes,
738 const char *tocodes, char **fromcode,
739 char **tocode, CONTENT * info)
747 /* Count the tocodes */
749 for (c = tocodes; c; c = c1 ? c1 + 1 : 0) {
750 if ((c1 = strchr (c, ':')) == c)
756 tcode = p_new(char *, ncodes);
757 for (c = tocodes, i = 0; c; c = c1 ? c1 + 1 : 0, i++) {
758 if ((c1 = strchr (c, ':')) == c)
760 tcode[i] = str_substrdup (c, c1);
765 /* Try each fromcode in turn */
766 for (c = fromcodes; c; c = c1 ? c1 + 1 : 0) {
767 if ((c1 = strchr (c, ':')) == c)
769 fcode = str_substrdup (c, c1);
771 ret = convert_file_to (file, fcode, ncodes, (const char **) tcode,
773 if (ret != (size_t) (-1)) {
783 /* There is only one fromcode */
784 ret = convert_file_to (file, fromcodes, ncodes, (const char **) tcode,
786 if (ret != (size_t) (-1)) {
793 for (i = 0; i < ncodes; i++)
802 * Analyze the contents of a file to determine which MIME encoding to use.
803 * Also set the body charset, sometimes, or not.
805 CONTENT *mutt_get_content_info (const char *fname, BODY * b)
810 char *fromcode = NULL;
821 if (stat (fname, &sb) == -1) {
822 mutt_error (_("Can't stat %s: %s"), fname, strerror (errno));
826 if (!S_ISREG (sb.st_mode)) {
827 mutt_error (_("%s isn't a regular file."), fname);
831 if ((fp = fopen (fname, "r")) == NULL) {
832 debug_print (1, ("%s: %s (errno %d).\n", fname, strerror (errno), errno));
836 info = p_new(CONTENT, 1);
839 if (b != NULL && b->type == TYPETEXT && (!b->noconv && !b->force_charset)) {
840 char *chs = mutt_get_parameter ("charset", b->parameter);
841 char *fchs = b->use_disp ? ((FileCharset && *FileCharset) ?
842 FileCharset : Charset) : Charset;
843 if (Charset && (chs || SendCharset) &&
844 convert_file_from_to (fp, fchs, chs ? chs : SendCharset,
845 &fromcode, &tocode, info) != (size_t) (-1)) {
847 mutt_canonical_charset (chsbuf, sizeof (chsbuf), tocode);
848 mutt_set_parameter ("charset", chsbuf, &b->parameter);
850 b->file_charset = fromcode;
858 while ((r = fread (buffer, 1, sizeof (buffer), fp)))
859 update_content_info (info, &state, buffer, r);
860 update_content_info (info, &state, 0, 0);
864 if (b != NULL && b->type == TYPETEXT && (!b->noconv && !b->force_charset))
865 mutt_set_parameter ("charset", (!info->hibin ? "us-ascii" :
867 && !mutt_is_us_ascii (Charset) ? Charset :
868 "unknown-8bit"), &b->parameter);
873 /* Given a file with path ``s'', see if there is a registered MIME type.
874 * returns the major MIME type, and copies the subtype to ``d''. First look
875 * for ~/.mime.types, then look in a system mime.types if we can find one.
876 * The longest match is used so that we can match `ps.gz' when `gz' also
880 int mutt_lookup_mime_type (BODY * att, const char *path)
884 char buf[LONG_STRING];
885 char subtype[STRING], xtype[STRING];
887 int szf, sze, cur_sze;
895 szf = m_strlen(path);
897 for (count = 0; count < 4; count++) {
899 * can't use strtok() because we use it in an inner loop below, so use
900 * a switch statement here instead.
904 snprintf (buf, sizeof (buf), "%s/.mime.types", NONULL (Homedir));
907 strfcpy (buf, SYSCONFDIR "/muttng-mime.types", sizeof (buf));
910 strfcpy (buf, PKGDATADIR "/mime.types", sizeof (buf));
913 strfcpy (buf, SYSCONFDIR "/mime.types", sizeof (buf));
916 debug_print (1, ("Internal error, count = %d.\n", count));
917 goto bye; /* shouldn't happen */
920 if ((f = fopen (buf, "r")) != NULL) {
921 while (fgets (buf, sizeof (buf) - 1, f) != NULL) {
922 /* weed out any comments */
923 if ((p = strchr (buf, '#')))
926 /* remove any leading space. */
930 /* position on the next field in this line */
931 if ((p = strpbrk (ct, " \t")) == NULL)
936 /* cycle through the file extensions */
937 while ((p = strtok (p, " \t\n"))) {
939 if ((sze > cur_sze) && (szf >= sze) &&
940 (str_casecmp (path + szf - sze, p) == 0
941 || ascii_strcasecmp (path + szf - sze, p) == 0) && (szf == sze
948 /* get the content-type */
950 if ((p = strchr (ct, '/')) == NULL) {
951 /* malformed line, just skip it. */
956 for (q = p; *q && !ISSPACE (*q); q++);
958 str_substrcpy (subtype, p, q, sizeof (subtype));
960 if ((type = mutt_check_mime_type (ct)) == TYPEOTHER)
961 strfcpy (xtype, ct, sizeof (xtype));
974 if (type != TYPEOTHER || *xtype != '\0') {
976 str_replace (&att->subtype, subtype);
977 str_replace (&att->xtype, xtype);
983 void mutt_message_to_7bit (BODY * a, FILE * fp)
985 char temp[_POSIX_PATH_MAX];
991 if (!a->filename && fp)
993 else if (!a->filename || !(fpin = fopen (a->filename, "r"))) {
994 mutt_error (_("Could not open %s"), a->filename ? a->filename : "(null)");
999 if (stat (a->filename, &sb) == -1) {
1000 mutt_perror ("stat");
1003 a->length = sb.st_size;
1007 if (!(fpout = safe_fopen (temp, "w+"))) {
1008 mutt_perror ("fopen");
1012 fseeko (fpin, a->offset, 0);
1013 a->parts = mutt_parse_messageRFC822 (fpin, a);
1015 transform_to_7bit (a->parts, fpin);
1017 mutt_copy_hdr (fpin, fpout, a->offset, a->offset + a->length,
1018 CH_MIME | CH_NONEWLINE | CH_XMIT, NULL);
1020 fputs ("MIME-Version: 1.0\n", fpout);
1021 mutt_write_mime_header (a->parts, fpout);
1022 fputc ('\n', fpout);
1023 mutt_write_mime_body (a->parts, fpout);
1035 a->encoding = ENC7BIT;
1036 a->d_filename = a->filename;
1037 if (a->filename && a->unlink)
1038 unlink (a->filename);
1039 a->filename = m_strdup(temp);
1041 if (stat (a->filename, &sb) == -1) {
1042 mutt_perror ("stat");
1045 a->length = sb.st_size;
1046 mutt_free_body (&a->parts);
1047 a->hdr->content = NULL;
1050 static void transform_to_7bit (BODY * a, FILE * fpin)
1052 char buff[_POSIX_PATH_MAX];
1057 for (; a; a = a->next) {
1058 if (a->type == TYPEMULTIPART) {
1059 if (a->encoding != ENC7BIT)
1060 a->encoding = ENC7BIT;
1062 transform_to_7bit (a->parts, fpin);
1064 else if (mutt_is_message_type (a->type, a->subtype)) {
1065 mutt_message_to_7bit (a, fpin);
1069 a->force_charset = 1;
1072 if ((s.fpout = safe_fopen (buff, "w")) == NULL) {
1073 mutt_perror ("fopen");
1077 mutt_decode_attachment (a, &s);
1079 a->d_filename = a->filename;
1080 a->filename = m_strdup(buff);
1082 if (stat (a->filename, &sb) == -1) {
1083 mutt_perror ("stat");
1086 a->length = sb.st_size;
1088 mutt_update_encoding (a);
1089 if (a->encoding == ENC8BIT)
1090 a->encoding = ENCQUOTEDPRINTABLE;
1091 else if (a->encoding == ENCBINARY)
1092 a->encoding = ENCBASE64;
1097 /* determine which Content-Transfer-Encoding to use */
1098 static void mutt_set_encoding (BODY * b, CONTENT * info)
1100 char send_charset[SHORT_STRING];
1102 if (b->type == TYPETEXT) {
1104 mutt_get_body_charset (send_charset, sizeof (send_charset), b);
1105 if ((info->lobin && ascii_strncasecmp (chsname, "iso-2022", 8))
1106 || info->linemax > 990 || (info->from && option (OPTENCODEFROM)))
1107 b->encoding = ENCQUOTEDPRINTABLE;
1108 else if (info->hibin)
1109 b->encoding = option (OPTALLOW8BIT) ? ENC8BIT : ENCQUOTEDPRINTABLE;
1111 b->encoding = ENC7BIT;
1113 else if (b->type == TYPEMESSAGE || b->type == TYPEMULTIPART) {
1114 if (info->lobin || info->hibin) {
1115 if (option (OPTALLOW8BIT) && !info->lobin)
1116 b->encoding = ENC8BIT;
1118 mutt_message_to_7bit (b, NULL);
1121 b->encoding = ENC7BIT;
1123 else if (b->type == TYPEAPPLICATION
1124 && ascii_strcasecmp (b->subtype, "pgp-keys") == 0)
1125 b->encoding = ENC7BIT;
1128 if (info->lobin || info->hibin || info->binary || info->linemax > 990
1129 || info->cr || ( /* option (OPTENCODEFROM) && */ info->from))
1132 /* Determine which encoding is smaller */
1133 if (1.33 * (float) (info->lobin + info->hibin + info->ascii) <
1134 3.0 * (float) (info->lobin + info->hibin) + (float) info->ascii)
1135 b->encoding = ENCBASE64;
1137 b->encoding = ENCQUOTEDPRINTABLE;
1141 b->encoding = ENC7BIT;
1145 void mutt_stamp_attachment (BODY * a)
1147 a->stamp = time (NULL);
1150 /* Get a body's character set */
1152 char *mutt_get_body_charset (char *d, size_t dlen, BODY * b)
1156 if (b && b->type != TYPETEXT)
1160 p = mutt_get_parameter ("charset", b->parameter);
1163 mutt_canonical_charset (d, dlen, NONULL (p));
1165 strfcpy (d, "us-ascii", dlen);
1171 /* Assumes called from send mode where BODY->filename points to actual file */
1172 void mutt_update_encoding (BODY * a)
1175 char chsbuff[STRING];
1177 /* override noconv when it's us-ascii */
1178 if (mutt_is_us_ascii (mutt_get_body_charset (chsbuff, sizeof (chsbuff), a)))
1181 if (!a->force_charset && !a->noconv)
1182 mutt_delete_parameter ("charset", &a->parameter);
1184 if ((info = mutt_get_content_info (a->filename, a)) == NULL)
1187 mutt_set_encoding (a, info);
1188 mutt_stamp_attachment (a);
1190 p_delete(&a->content);
1195 BODY *mutt_make_message_attach (CONTEXT * ctx, HEADER * hdr, int attach_msg)
1197 char buffer[LONG_STRING];
1200 int cmflags, chflags;
1201 int pgp = WithCrypto ? hdr->security : 0;
1204 if ((option (OPTMIMEFORWDECODE) || option (OPTFORWDECRYPT)) &&
1205 (hdr->security & ENCRYPT)) {
1206 if (!crypt_valid_passphrase (hdr->security))
1211 mutt_mktemp (buffer);
1212 if ((fp = safe_fopen (buffer, "w+")) == NULL)
1215 body = mutt_new_body ();
1216 body->type = TYPEMESSAGE;
1217 body->subtype = m_strdup("rfc822");
1218 body->filename = m_strdup(buffer);
1221 body->disposition = DISPINLINE;
1224 mutt_parse_mime_message (ctx, hdr);
1229 /* If we are attaching a message, ignore OPTMIMEFORWDECODE */
1230 if (!attach_msg && option (OPTMIMEFORWDECODE)) {
1231 chflags |= CH_MIME | CH_TXTPLAIN;
1232 cmflags = M_CM_DECODE | M_CM_CHARCONV;
1233 if ((WithCrypto & APPLICATION_PGP))
1235 if ((WithCrypto & APPLICATION_SMIME))
1236 pgp &= ~SMIMEENCRYPT;
1238 else if (WithCrypto && option (OPTFORWDECRYPT) && (hdr->security & ENCRYPT)) {
1239 if ((WithCrypto & APPLICATION_PGP)
1240 && mutt_is_multipart_encrypted (hdr->content)) {
1241 chflags |= CH_MIME | CH_NONEWLINE;
1242 cmflags = M_CM_DECODE_PGP;
1245 else if ((WithCrypto & APPLICATION_PGP)
1246 && (mutt_is_application_pgp (hdr->content) & PGPENCRYPT)) {
1247 chflags |= CH_MIME | CH_TXTPLAIN;
1248 cmflags = M_CM_DECODE | M_CM_CHARCONV;
1251 else if ((WithCrypto & APPLICATION_SMIME)
1252 && mutt_is_application_smime (hdr->content) & SMIMEENCRYPT) {
1253 chflags |= CH_MIME | CH_TXTPLAIN;
1254 cmflags = M_CM_DECODE | M_CM_CHARCONV;
1255 pgp &= ~SMIMEENCRYPT;
1259 mutt_copy_message (fp, ctx, hdr, cmflags, chflags);
1264 body->hdr = mutt_new_header ();
1265 body->hdr->offset = 0;
1266 /* we don't need the user headers here */
1267 body->hdr->env = mutt_read_rfc822_header (fp, body->hdr, 0, 0);
1269 body->hdr->security = pgp;
1270 mutt_update_encoding (body);
1271 body->parts = body->hdr->content;
1278 BODY *mutt_make_file_attach (const char *path)
1283 att = mutt_new_body ();
1284 att->filename = m_strdup(path);
1286 /* Attempt to determine the appropriate content-type based on the filename
1293 mutt_lookup_mime_type (buf, sizeof (buf), xbuf, sizeof (xbuf),
1294 path)) != TYPEOTHER || *xbuf != '\0') {
1296 att->subtype = m_strdup(buf);
1297 att->xtype = m_strdup(xbuf);
1302 mutt_lookup_mime_type (att, path);
1306 if ((info = mutt_get_content_info (path, att)) == NULL) {
1307 mutt_free_body (&att);
1311 if (!att->subtype) {
1312 if (info->lobin == 0
1313 || (info->lobin + info->hibin + info->ascii) / info->lobin >= 10) {
1315 * Statistically speaking, there should be more than 10% "lobin"
1316 * chars if this is really a binary file...
1318 att->type = TYPETEXT;
1319 att->subtype = m_strdup("plain");
1322 att->type = TYPEAPPLICATION;
1323 att->subtype = m_strdup("octet-stream");
1327 mutt_update_encoding (att);
1331 static int get_toplevel_encoding (BODY * a)
1335 for (; a; a = a->next) {
1336 if (a->encoding == ENCBINARY)
1338 else if (a->encoding == ENC8BIT)
1345 BODY *mutt_make_multipart (BODY * b)
1349 new = mutt_new_body ();
1350 new->type = TYPEMULTIPART;
1351 new->subtype = m_strdup("mixed");
1352 new->encoding = get_toplevel_encoding (b);
1353 mutt_generate_boundary (&new->parameter);
1355 new->disposition = DISPINLINE;
1361 /* remove the multipart body if it exists */
1362 BODY *mutt_remove_multipart (BODY * b)
1370 mutt_free_body (&t);
1375 char *mutt_make_date (char *s, size_t len)
1377 time_t t = time (NULL);
1378 struct tm *l = localtime (&t);
1379 time_t tz = mutt_local_tz (t);
1383 snprintf (s, len, "Date: %s, %d %s %d %02d:%02d:%02d %+03d%02d\n",
1384 Weekdays[l->tm_wday], l->tm_mday, Months[l->tm_mon],
1385 l->tm_year + 1900, l->tm_hour, l->tm_min, l->tm_sec,
1386 (int) tz / 60, (int) abs (tz) % 60);
1390 /* wrapper around mutt_write_address() so we can handle very large
1391 recipient lists without needing a huge temporary buffer in memory */
1392 void mutt_write_address_list (ADDRESS * adr, FILE * fp, int linelen,
1396 char buf[LONG_STRING];
1404 rfc822_write_address (buf, sizeof (buf), adr, display);
1405 len = m_strlen(buf);
1406 if (count && linelen + len > 74) {
1408 linelen = len + 8; /* tab is usually about 8 spaces... */
1411 if (count && adr->mailbox) {
1419 if (!adr->group && adr->next && adr->next->mailbox) {
1429 /* arbitrary number of elements to grow the array by */
1434 /* need to write the list in reverse because they are stored in reverse order
1435 * when parsed to speed up threading
1437 void mutt_write_references (LIST * r, FILE * f)
1440 int refcnt = 0, refmax = 0;
1442 for (; (TrimRef == 0 || refcnt < TrimRef) && r; r = r->next) {
1443 if (refcnt == refmax)
1444 p_realloc(&ref, refmax += REF_INC);
1448 while (refcnt-- > 0) {
1450 fputs (ref[refcnt]->data, f);
1456 /* Note: all RFC2047 encoding should be done outside of this routine, except
1457 * for the "real name." This will allow this routine to be used more than
1458 * once, if necessary.
1460 * Likewise, all IDN processing should happen outside of this routine.
1462 * mode == 1 => "lite" mode (used for edit_hdrs)
1463 * mode == 0 => normal mode. write full header + MIME headers
1464 * mode == -1 => write just the envelope info (used for postponing messages)
1466 * privacy != 0 => will omit any headers which may identify the user.
1467 * Output generated is suitable for being sent through
1468 * anonymous remailer chains.
1472 int mutt_write_rfc822_header (FILE * fp, ENVELOPE * env, BODY * attach,
1473 int mode, int privacy)
1475 char buffer[LONG_STRING];
1477 LIST *tmp = env->userhdrs;
1478 int has_agent = 0; /* user defined user-agent header field exists */
1479 list2_t* hdrs = list_from_str (EditorHeaders, " ");
1482 if (!option (OPTNEWSSEND))
1484 if (mode == 0 && !privacy)
1485 fputs (mutt_make_date (buffer, sizeof (buffer)), fp);
1487 #define EDIT_HEADER(x) (mode != 1 || option(OPTXMAILTO) || (mode == 1 && list_lookup(hdrs,(list_lookup_t*) ascii_strcasecmp,x) >= 0))
1489 /* OPTUSEFROM is not consulted here so that we can still write a From:
1490 * field if the user sets it with the `my_hdr' command
1492 if (env->from && !privacy) {
1494 rfc822_write_address (buffer, sizeof (buffer), env->from, 0);
1495 fprintf (fp, "From: %s\n", buffer);
1500 mutt_write_address_list (env->to, fp, 4, 0);
1504 if (!option (OPTNEWSSEND))
1506 if (EDIT_HEADER("To:"))
1507 fputs ("To:\n", fp);
1511 mutt_write_address_list (env->cc, fp, 4, 0);
1515 if (!option (OPTNEWSSEND))
1517 if (EDIT_HEADER("Cc:"))
1518 fputs ("Cc:\n", fp);
1521 if (mode != 0 || option (OPTWRITEBCC)) {
1522 fputs ("Bcc: ", fp);
1523 mutt_write_address_list (env->bcc, fp, 5, 0);
1528 if (!option (OPTNEWSSEND))
1530 if (EDIT_HEADER("Bcc:"))
1531 fputs ("Bcc:\n", fp);
1534 if (env->newsgroups)
1535 fprintf (fp, "Newsgroups: %s\n", env->newsgroups);
1536 else if (mode == 1 && option (OPTNEWSSEND) && EDIT_HEADER("Newsgroups:"))
1537 fputs ("Newsgroups:\n", fp);
1539 if (env->followup_to)
1540 fprintf (fp, "Followup-To: %s\n", env->followup_to);
1541 else if (mode == 1 && option (OPTNEWSSEND) && EDIT_HEADER("Followup-To:"))
1542 fputs ("Followup-To:\n", fp);
1544 if (env->x_comment_to)
1545 fprintf (fp, "X-Comment-To: %s\n", env->x_comment_to);
1546 else if (mode == 1 && option (OPTNEWSSEND) && option (OPTXCOMMENTTO) &&
1547 EDIT_HEADER("X-Comment-To:"))
1548 fputs ("X-Comment-To:\n", fp);
1552 fprintf (fp, "Subject: %s\n", env->subject);
1553 else if (mode == 1 && EDIT_HEADER("Subject:"))
1554 fputs ("Subject:\n", fp);
1556 /* save message id if the user has set it */
1557 if (env->message_id && !privacy)
1558 fprintf (fp, "Message-ID: %s\n", env->message_id);
1560 if (env->reply_to) {
1561 fputs ("Reply-To: ", fp);
1562 mutt_write_address_list (env->reply_to, fp, 10, 0);
1564 else if (mode > 0 && EDIT_HEADER("Reply-To:"))
1565 fputs ("Reply-To:\n", fp);
1567 if (env->mail_followup_to)
1569 if (!option (OPTNEWSSEND))
1572 fputs ("Mail-Followup-To: ", fp);
1573 mutt_write_address_list (env->mail_followup_to, fp, 18, 0);
1577 if (env->references) {
1578 fputs ("References:", fp);
1579 mutt_write_references (env->references, fp);
1583 /* Add the MIME headers */
1584 fputs ("MIME-Version: 1.0\n", fp);
1585 mutt_write_mime_header (attach, fp);
1588 if (env->in_reply_to) {
1589 fputs ("In-Reply-To:", fp);
1590 mutt_write_references (env->in_reply_to, fp);
1596 /* Add any user defined headers */
1597 for (; tmp; tmp = tmp->next) {
1598 if ((p = strchr (tmp->data, ':'))) {
1602 continue; /* don't emit empty fields. */
1604 /* check to see if the user has overridden the user-agent field */
1605 if (!ascii_strncasecmp ("user-agent", tmp->data, 10)) {
1611 fputs (tmp->data, fp);
1616 if (mode == 0 && !privacy && option (OPTXMAILER) && !has_agent) {
1619 if (OperatingSystem != NULL) {
1620 os = OperatingSystem;
1623 os = (uname(&un) == -1) ? "UNIX" : un.sysname;
1625 /* Add a vanity header */
1626 fprintf (fp, "User-Agent: %s (%s)\n", mutt_make_version (0), os);
1629 list_del (&hdrs, (list_del_t*)xmemfree);
1631 return (ferror (fp) == 0 ? 0 : -1);
1634 static void encode_headers (LIST * h)
1640 for (; h; h = h->next) {
1641 if (!(p = strchr (h->data, ':')))
1652 rfc2047_encode_string (&tmp);
1653 p_realloc(&h->data, m_strlen(h->data) + 2 + m_strlen(tmp) + 1);
1655 sprintf (h->data + i, ": %s", NONULL (tmp)); /* __SPRINTF_CHECKED__ */
1661 const char *mutt_fqdn (short may_hide_host)
1665 if (Fqdn && Fqdn[0] != '@') {
1668 if (may_hide_host && option (OPTHIDDENHOST)) {
1669 if ((p = strchr (Fqdn, '.')))
1672 /* sanity check: don't hide the host if
1673 * the fqdn is something like detebe.org.
1676 if (!p || !(q = strchr (p, '.')))
1684 /* normalized character (we're stricter than RFC2822, 3.6.4) */
1685 static char mutt_normalized_char(char c)
1687 return (isalnum(c) || strchr(".!#$%&'*+-/=?^_`{|}~", c)) ? c : '.';
1690 static void mutt_gen_localpart(char *buf, unsigned int len, const char *fmt)
1692 #define APPEND_FMT(fmt, arg) \
1694 int snlen = snprintf(buf, len, fmt, arg); \
1699 #define APPEND_BYTE(c) \
1716 APPEND_BYTE(mutt_normalized_char(c));
1724 APPEND_FMT("%02d", tm->tm_mday);
1727 APPEND_FMT("%02d", tm->tm_hour);
1730 APPEND_FMT("%02d", tm->tm_mon + 1);
1733 APPEND_FMT("%02d", tm->tm_min);
1736 APPEND_FMT("%lo", (unsigned long)now);
1739 APPEND_FMT("%u", (unsigned int)getpid());
1742 APPEND_FMT("%c", MsgIdPfx);
1743 MsgIdPfx = (MsgIdPfx == 'Z') ? 'A' : MsgIdPfx + 1;
1746 APPEND_FMT("%u", (unsigned int)rand());
1749 APPEND_FMT("%x", (unsigned int)rand());
1752 APPEND_FMT("%02d", tm->tm_sec);
1755 APPEND_FMT("%u", (unsigned int) now);
1758 APPEND_FMT("%x", (unsigned int) now);
1760 case 'Y': /* this will break in the year 10000 ;-) */
1761 APPEND_FMT("%04d", tm->tm_year + 1900);
1766 default: /* invalid formats are replaced by '.' */
1768 m_strncat(buf, len, ".", 1);
1778 char *mutt_gen_msgid (void)
1780 char buf[SHORT_STRING];
1781 char localpart[SHORT_STRING];
1782 unsigned int localpart_length;
1785 if (!(fqdn = mutt_fqdn (0)))
1786 fqdn = NONULL (Hostname);
1788 localpart_length = sizeof (buf) - m_strlen(fqdn) - 4; /* the 4 characters are '<', '@', '>' and '\0' */
1790 mutt_gen_localpart (localpart, localpart_length, MsgIdFormat);
1792 snprintf (buf, sizeof (buf), "<%s@%s>", localpart, fqdn);
1793 return (m_strdup(buf));
1796 static RETSIGTYPE alarm_handler (int sig)
1801 /* invoke sendmail in a subshell
1802 path (in) path to program to execute
1803 args (in) arguments to pass to program
1804 msg (in) temp file containing message to send
1805 tempfile (out) if sendmail is put in the background, this points
1806 to the temporary file containing the stdout of the
1809 send_msg(const char *path, const char **args, const char *msg, char **tempfile)
1815 mutt_block_signals_system ();
1818 /* we also don't want to be stopped right now */
1819 sigaddset (&set, SIGTSTP);
1820 sigprocmask (SIG_BLOCK, &set, NULL);
1822 if (SendmailWait >= 0) {
1823 char tmp[_POSIX_PATH_MAX];
1826 *tempfile = m_strdup(tmp);
1829 if ((pid = fork ()) == 0) {
1830 struct sigaction act, oldalrm;
1832 /* save parent's ID before setsid() */
1835 /* we want the delivery to continue even after the main process dies,
1836 * so we put ourselves into another session right away
1840 /* next we close all open files */
1841 #if defined(OPEN_MAX)
1842 for (fd = 0; fd < OPEN_MAX; fd++)
1844 #elif defined(_POSIX_OPEN_MAX)
1845 for (fd = 0; fd < _POSIX_OPEN_MAX; fd++)
1853 /* now the second fork() */
1854 if ((pid = fork ()) == 0) {
1855 /* "msg" will be opened as stdin */
1856 if (open (msg, O_RDONLY, 0) < 0) {
1862 if (SendmailWait >= 0) {
1863 /* *tempfile will be opened as stdout */
1864 if (open (*tempfile, O_WRONLY | O_APPEND | O_CREAT | O_EXCL, 0600) <
1867 /* redirect stderr to *tempfile too */
1872 if (open ("/dev/null", O_WRONLY | O_APPEND) < 0) /* stdout */
1874 if (open ("/dev/null", O_RDWR | O_APPEND) < 0) /* stderr */
1881 else if (pid == -1) {
1887 /* SendmailWait > 0: interrupt waitpid() after SendmailWait seconds
1888 * SendmailWait = 0: wait forever
1889 * SendmailWait < 0: don't wait
1891 if (SendmailWait > 0) {
1893 act.sa_handler = alarm_handler;
1895 /* need to make sure waitpid() is interrupted on SIGALRM */
1896 act.sa_flags = SA_INTERRUPT;
1900 sigemptyset (&act.sa_mask);
1901 sigaction (SIGALRM, &act, &oldalrm);
1902 alarm (SendmailWait);
1904 else if (SendmailWait < 0)
1905 _exit (0xff & EX_OK);
1907 if (waitpid (pid, &st, 0) > 0) {
1908 st = WIFEXITED (st) ? WEXITSTATUS (st) : S_ERR;
1909 if (SendmailWait && st == (0xff & EX_OK)) {
1910 unlink (*tempfile); /* no longer needed */
1915 st = (SendmailWait > 0 && errno == EINTR && SigAlrm) ? S_BKG : S_ERR;
1916 if (SendmailWait > 0) {
1922 /* reset alarm; not really needed, but... */
1924 sigaction (SIGALRM, &oldalrm, NULL);
1926 if (kill (ppid, 0) == -1 && errno == ESRCH) {
1927 /* the parent is already dead */
1935 sigprocmask (SIG_UNBLOCK, &set, NULL);
1937 if (pid != -1 && waitpid (pid, &st, 0) > 0)
1938 st = WIFEXITED (st) ? WEXITSTATUS (st) : S_ERR; /* return child status */
1940 st = S_ERR; /* error */
1942 mutt_unblock_signals_system (1);
1947 static const char **
1948 add_args(const char **args, size_t *argslen, size_t *argsmax, ADDRESS * addr)
1950 for (; addr; addr = addr->next) {
1951 /* weed out group mailboxes, since those are for display only */
1952 if (addr->mailbox && !addr->group) {
1953 if (*argslen == *argsmax)
1954 p_realloc(&args, *argsmax += 5);
1955 args[(*argslen)++] = addr->mailbox;
1961 static const char **
1962 add_option(const char **args, size_t *argslen, size_t *argsmax, const char *s)
1964 if (*argslen == *argsmax) {
1965 p_realloc(&args, *argsmax += 5);
1967 args[(*argslen)++] = s;
1971 static int mutt_invoke_sendmail (ADDRESS * from, /* the sender */
1972 ADDRESS * to, ADDRESS * cc, ADDRESS * bcc, /* recips */
1973 const char *msg, /* file containing message */
1975 { /* message contains 8bit chars */
1976 char *ps = NULL, *path = NULL, *s = NULL, *childout = NULL;
1977 const char **args = NULL;
1978 size_t argslen = 0, argsmax = 0;
1982 if (option (OPTNEWSSEND)) {
1983 char cmd[LONG_STRING];
1985 mutt_FormatString (cmd, sizeof (cmd), NONULL (Inews), nntp_format_str, 0,
1988 i = nntp_post (msg);
1997 s = m_strdup(Sendmail);
2001 while ((ps = strtok (ps, " "))) {
2002 if (argslen == argsmax)
2003 p_realloc(&args, argsmax += 5);
2006 args[argslen++] = ps;
2008 path = m_strdup(ps);
2009 ps = strrchr (ps, '/');
2014 args[argslen++] = ps;
2021 if (!option (OPTNEWSSEND)) {
2023 if (eightbit && option (OPTUSE8BITMIME))
2024 args = add_option(args, &argslen, &argsmax, "-B8BITMIME");
2026 if (option (OPTENVFROM)) {
2030 else if (from && !from->next)
2033 args = add_option (args, &argslen, &argsmax, "-f");
2034 args = add_args (args, &argslen, &argsmax, f);
2038 args = add_option (args, &argslen, &argsmax, "-N");
2039 args = add_option (args, &argslen, &argsmax, DsnNotify);
2042 args = add_option (args, &argslen, &argsmax, "-R");
2043 args = add_option (args, &argslen, &argsmax, DsnReturn);
2045 args = add_option (args, &argslen, &argsmax, "--");
2046 args = add_args (args, &argslen, &argsmax, to);
2047 args = add_args (args, &argslen, &argsmax, cc);
2048 args = add_args (args, &argslen, &argsmax, bcc);
2053 if (argslen == argsmax)
2054 p_realloc(&args, ++argsmax);
2056 args[argslen++] = NULL;
2058 if ((i = send_msg (path, args, msg, &childout)) != (EX_OK & 0xff)) {
2060 const char *e = mutt_strsysexit (i);
2062 e = mutt_strsysexit (i);
2063 mutt_error (_("Error sending message, child exited %d (%s)."), i,
2068 if (stat (childout, &st) == 0 && st.st_size > 0)
2069 mutt_do_pager (_("Output of the delivery process"), childout, 0,
2077 p_delete(&childout);
2082 if (i == (EX_OK & 0xff))
2084 else if (i == S_BKG)
2091 int mutt_invoke_mta (ADDRESS * from, /* the sender */
2092 ADDRESS * to, ADDRESS * cc, ADDRESS * bcc, /* recips */
2093 const char *msg, /* file containing message */
2095 { /* message contains 8bit chars */
2098 if (!option (OPTNEWSSEND))
2101 return mutt_libesmtp_invoke (from, to, cc, bcc, msg, eightbit);
2104 return mutt_invoke_sendmail (from, to, cc, bcc, msg, eightbit);
2107 /* appends string 'b' to string 'a', and returns the pointer to the new
2109 char *mutt_append_string (char *a, const char *b)
2111 size_t la = m_strlen(a);
2113 p_realloc(&a, la + m_strlen(b) + 1);
2114 strcpy (a + la, b); /* __STRCPY_CHECKED__ */
2118 /* returns 1 if char `c' needs to be quoted to protect from shell
2119 interpretation when executing commands in a subshell */
2120 #define INVALID_CHAR(c) (!isalnum ((unsigned char)c) && !strchr ("@.+-_,:", c))
2122 /* returns 1 if string `s' contains characters which could cause problems
2123 when used on a command line to execute a command */
2124 int mutt_needs_quote (const char *s)
2127 if (INVALID_CHAR (*s))
2134 /* Quote a string to prevent shell escapes when this string is used on the
2135 command line to send mail. */
2136 char *mutt_quote_string (const char *s)
2141 rlen = m_strlen(s) + 3;
2142 pr = r = p_new(char, rlen);
2145 if (INVALID_CHAR (*s)) {
2148 p_realloc(&r, ++rlen);
2159 /* For postponing (!final) do the necessary encodings only */
2160 void mutt_prepare_envelope (ENVELOPE * env, int final)
2162 char buffer[LONG_STRING];
2165 if (env->bcc && !(env->to || env->cc)) {
2166 /* some MTA's will put an Apparently-To: header field showing the Bcc:
2167 * recipients if there is no To: or Cc: field, so attempt to suppress
2168 * it by using an empty To: field.
2170 env->to = rfc822_new_address ();
2172 env->to->next = rfc822_new_address ();
2175 rfc822_cat (buffer, sizeof (buffer), "undisclosed-recipients",
2178 env->to->mailbox = m_strdup(buffer);
2181 mutt_set_followup_to (env);
2183 if (!env->message_id && MsgIdFormat && *MsgIdFormat)
2184 env->message_id = mutt_gen_msgid ();
2187 /* Take care of 8-bit => 7-bit conversion. */
2188 rfc2047_encode_adrlist (env->to, "To");
2189 rfc2047_encode_adrlist (env->cc, "Cc");
2190 rfc2047_encode_adrlist (env->bcc, "Bcc");
2191 rfc2047_encode_adrlist (env->from, "From");
2192 rfc2047_encode_adrlist (env->mail_followup_to, "Mail-Followup-To");
2193 rfc2047_encode_adrlist (env->reply_to, "Reply-To");
2197 if (!option (OPTNEWSSEND) || option (OPTMIMESUBJECT))
2200 rfc2047_encode_string (&env->subject);
2202 encode_headers (env->userhdrs);
2205 void mutt_unprepare_envelope (ENVELOPE * env)
2209 for (item = env->userhdrs; item; item = item->next)
2210 rfc2047_decode (&item->data);
2212 rfc822_free_address (&env->mail_followup_to);
2214 /* back conversions */
2215 rfc2047_decode_adrlist (env->to);
2216 rfc2047_decode_adrlist (env->cc);
2217 rfc2047_decode_adrlist (env->bcc);
2218 rfc2047_decode_adrlist (env->from);
2219 rfc2047_decode_adrlist (env->reply_to);
2220 rfc2047_decode (&env->subject);
2223 static int _mutt_bounce_message (FILE * fp, HEADER * h, ADDRESS * to,
2224 const char *resent_from, ADDRESS * env_from)
2228 char date[SHORT_STRING], tempfile[_POSIX_PATH_MAX];
2229 MESSAGE *msg = NULL;
2232 /* Try to bounce each message out, aborting if we get any failures. */
2233 for (i = 0; i < Context->msgcount; i++)
2234 if (Context->hdrs[i]->tagged)
2236 _mutt_bounce_message (fp, Context->hdrs[i], to, resent_from,
2241 /* If we failed to open a message, return with error */
2242 if (!fp && (msg = mx_open_message (Context, h->msgno)) == NULL)
2248 mutt_mktemp (tempfile);
2249 if ((f = safe_fopen (tempfile, "w")) != NULL) {
2250 int ch_flags = CH_XMIT | CH_NONEWLINE | CH_NOQFROM;
2252 if (!option (OPTBOUNCEDELIVERED))
2253 ch_flags |= CH_WEED_DELIVERED;
2255 fseeko (fp, h->offset, 0);
2256 fprintf (f, "Resent-From: %s", resent_from);
2257 fprintf (f, "\nResent-%s", mutt_make_date (date, sizeof (date)));
2258 if (MsgIdFormat && *MsgIdFormat)
2259 fprintf (f, "Resent-Message-ID: %s\n", mutt_gen_msgid ());
2260 fputs ("Resent-To: ", f);
2261 mutt_write_address_list (to, f, 11, 0);
2262 mutt_copy_header (fp, h, f, ch_flags, NULL);
2264 mutt_copy_bytes (fp, f, h->content->length);
2267 ret = mutt_invoke_mta (env_from, to, NULL, NULL, tempfile,
2268 h->content->encoding == ENC8BIT);
2272 mx_close_message (&msg);
2277 int mutt_bounce_message (FILE * fp, HEADER * h, ADDRESS * to)
2280 const char *fqdn = mutt_fqdn (1);
2281 char resent_from[STRING];
2285 resent_from[0] = '\0';
2286 from = mutt_default_from ();
2289 rfc822_qualify (from, fqdn);
2291 rfc2047_encode_adrlist (from, "Resent-From");
2292 if (mutt_addrlist_to_idna (from, &err)) {
2293 mutt_error (_("Bad IDN %s while preparing resent-from."), err);
2296 rfc822_write_address (resent_from, sizeof (resent_from), from, 0);
2299 unset_option (OPTNEWSSEND);
2302 ret = _mutt_bounce_message (fp, h, to, resent_from, from);
2304 rfc822_free_address (&from);
2310 /* given a list of addresses, return a list of unique addresses */
2311 ADDRESS *mutt_remove_duplicates (ADDRESS * addr)
2313 ADDRESS *top = addr;
2314 ADDRESS **last = ⊤
2319 for (tmp = top, dup = 0; tmp && tmp != addr; tmp = tmp->next) {
2320 if (tmp->mailbox && addr->mailbox &&
2321 !ascii_strcasecmp (addr->mailbox, tmp->mailbox)) {
2328 debug_print (2, ("Removing %s\n", addr->mailbox));
2333 rfc822_free_address (&addr);
2346 static void set_noconv_flags (BODY * b, short flag)
2348 for (; b; b = b->next) {
2349 if (b->type == TYPEMESSAGE || b->type == TYPEMULTIPART)
2350 set_noconv_flags (b->parts, flag);
2351 else if (b->type == TYPETEXT && b->noconv) {
2353 mutt_set_parameter ("x-mutt-noconv", "yes", &b->parameter);
2355 mutt_delete_parameter ("x-mutt-noconv", &b->parameter);
2360 int mutt_write_fcc (const char *path, HEADER * hdr, const char *msgid,
2361 int post, char *fcc)
2365 char tempfile[_POSIX_PATH_MAX];
2366 FILE *tempfp = NULL;
2370 set_noconv_flags (hdr->content, 1);
2372 if (mx_open_mailbox (path, M_APPEND | M_QUIET, &f) == NULL) {
2373 debug_print (1, ("unable to open mailbox %s in append-mode, aborting.\n", path));
2377 /* We need to add a Content-Length field to avoid problems where a line in
2378 * the message body begins with "From "
2380 if (f.magic == M_MMDF || f.magic == M_MBOX) {
2381 mutt_mktemp (tempfile);
2382 if ((tempfp = safe_fopen (tempfile, "w+")) == NULL) {
2383 mutt_perror (tempfile);
2384 mx_close_mailbox (&f, NULL);
2389 hdr->read = !post; /* make sure to put it in the `cur' directory (maildir) */
2390 if ((msg = mx_open_new_message (&f, hdr, M_ADD_FROM)) == NULL) {
2391 mx_close_mailbox (&f, NULL);
2395 /* post == 1 => postpone message. Set mode = -1 in mutt_write_rfc822_header()
2396 * post == 0 => Normal mode. Set mode = 0 in mutt_write_rfc822_header()
2398 mutt_write_rfc822_header (msg->fp, hdr->env, hdr->content, post ? -post : 0,
2401 /* (postponment) if this was a reply of some sort, <msgid> contians the
2402 * Message-ID: of message replied to. Save it using a special X-Mutt-
2403 * header so it can be picked up if the message is recalled at a later
2404 * point in time. This will allow the message to be marked as replied if
2405 * the same mailbox is still open.
2408 fprintf (msg->fp, "X-Mutt-References: %s\n", msgid);
2410 /* (postponment) save the Fcc: using a special X-Mutt- header so that
2411 * it can be picked up when the message is recalled
2414 fprintf (msg->fp, "X-Mutt-Fcc: %s\n", fcc);
2415 fprintf (msg->fp, "Status: RO\n");
2419 /* (postponment) if the mail is to be signed or encrypted, save this info */
2420 if ((WithCrypto & APPLICATION_PGP)
2421 && post && (hdr->security & APPLICATION_PGP)) {
2422 fputs ("X-Mutt-PGP: ", msg->fp);
2423 if (hdr->security & ENCRYPT)
2424 fputc ('E', msg->fp);
2425 if (hdr->security & SIGN) {
2426 fputc ('S', msg->fp);
2427 if (PgpSignAs && *PgpSignAs)
2428 fprintf (msg->fp, "<%s>", PgpSignAs);
2430 if (hdr->security & INLINE)
2431 fputc ('I', msg->fp);
2432 fputc ('\n', msg->fp);
2435 /* (postponment) if the mail is to be signed or encrypted, save this info */
2436 if ((WithCrypto & APPLICATION_SMIME)
2437 && post && (hdr->security & APPLICATION_SMIME)) {
2438 fputs ("X-Mutt-SMIME: ", msg->fp);
2439 if (hdr->security & ENCRYPT) {
2440 fputc ('E', msg->fp);
2441 if (SmimeCryptAlg && *SmimeCryptAlg)
2442 fprintf (msg->fp, "C<%s>", SmimeCryptAlg);
2444 if (hdr->security & SIGN) {
2445 fputc ('S', msg->fp);
2446 if (SmimeDefaultKey && *SmimeDefaultKey)
2447 fprintf (msg->fp, "<%s>", SmimeDefaultKey);
2449 if (hdr->security & INLINE)
2450 fputc ('I', msg->fp);
2451 fputc ('\n', msg->fp);
2455 /* (postponement) if the mail is to be sent through a mixmaster
2456 * chain, save that information
2459 if (post && hdr->chain && hdr->chain) {
2462 fputs ("X-Mutt-Mix:", msg->fp);
2463 for (p = hdr->chain; p; p = p->next)
2464 fprintf (msg->fp, " %s", (char *) p->data);
2466 fputc ('\n', msg->fp);
2471 char sasha[LONG_STRING];
2474 mutt_write_mime_body (hdr->content, tempfp);
2476 /* make sure the last line ends with a newline. Emacs doesn't ensure
2477 * this will happen, and it can cause problems parsing the mailbox
2480 fseeko (tempfp, -1, 2);
2481 if (fgetc (tempfp) != '\n') {
2482 fseeko (tempfp, 0, 2);
2483 fputc ('\n', tempfp);
2487 if (ferror (tempfp)) {
2488 debug_print (1, ("%s: write failed.\n", tempfile));
2491 mx_commit_message (msg, &f); /* XXX - really? */
2492 mx_close_message (&msg);
2493 mx_close_mailbox (&f, NULL);
2497 /* count the number of lines */
2499 while (fgets (sasha, sizeof (sasha), tempfp) != NULL)
2501 fprintf (msg->fp, "Content-Length: %zd\n", ftello (tempfp));
2502 fprintf (msg->fp, "Lines: %d\n\n", lines);
2504 /* copy the body and clean up */
2506 r = mutt_copy_stream (tempfp, msg->fp);
2507 if (fclose (tempfp) != 0)
2509 /* if there was an error, leave the temp version */
2514 fputc ('\n', msg->fp); /* finish off the header */
2515 r = mutt_write_mime_body (hdr->content, msg->fp);
2518 if (mx_commit_message (msg, &f) != 0)
2520 mx_close_message (&msg);
2521 mx_close_mailbox (&f, NULL);
2524 set_noconv_flags (hdr->content, 0);