2 * Copyright notice from original mutt:
3 * Copyright (C) 1996-2000 Michael R. Elkins <me@mutt.org>
5 * This file is part of mutt-ng, see http://www.muttng.org/.
6 * It's licensed under the GNU General Public License,
7 * please see the file GPL in the top level source directory.
19 #include "mutt_crypt.h"
32 /* Reads an arbitrarily long header field, and looks ahead for continuation
33 * lines. ``line'' must point to a dynamically allocated string; it is
34 * increased if more space is required to fit the whole line.
36 static char *read_rfc822_line (FILE * f, char *line, size_t * linelen)
43 if (fgets (buf, *linelen - offset, f) == NULL || /* end of file or */
44 (ISSPACE (*line) && !offset)) { /* end of headers */
49 buf += mutt_strlen (buf) - 1;
51 /* we did get a full line. remove trailing space */
52 while (ISSPACE (*buf))
53 *buf-- = 0; /* we cannot come beyond line's beginning because
54 * it begins with a non-space */
56 /* check to see if the next line is a continuation line */
57 if ((ch = fgetc (f)) != ' ' && ch != '\t') {
59 return (line); /* next line is a separate header field or EOH */
62 /* eat tabs and spaces from the beginning of the continuation line */
63 while ((ch = fgetc (f)) == ' ' || ch == '\t');
65 *++buf = ' '; /* string is still terminated because we removed
66 at least one whitespace char above */
71 if (*linelen < offset + STRING) {
74 safe_realloc (&line, *linelen);
81 LIST *mutt_parse_references (char *s, int in_reply_to)
85 char *o = NULL, *new, *at;
87 while ((s = strtok (s, " \t;")) != NULL) {
89 * some mail clients add other garbage besides message-ids, so do a quick
90 * check to make sure this looks like a valid message-id
91 * some idiotic clients also break their message-ids between lines, deal
92 * with that too (give up if it's more than two lines, though)
99 if (s[n - 1] != '>') {
105 new = safe_strdup (s);
109 if (s[m - 1] == '>') {
110 new = safe_malloc (sizeof (char) * (n + m + 1));
111 strcpy (new, o); /* __STRCPY_CHECKED__ */
112 strcpy (new + n, s); /* __STRCPY_CHECKED__ */
116 /* make sure that this really does look like a message-id.
117 * it should have exactly one @, and if we're looking at
118 * an in-reply-to header, make sure that the part before
119 * the @ has more than eight characters or it's probably
122 if (!(at = strchr (new, '@')) || strchr (at + 1, '@')
123 || (in_reply_to && at - new <= 8))
126 t = (LIST *) safe_malloc (sizeof (LIST));
139 int mutt_check_encoding (const char *c)
141 if (ascii_strncasecmp ("7bit", c, sizeof ("7bit") - 1) == 0)
143 else if (ascii_strncasecmp ("8bit", c, sizeof ("8bit") - 1) == 0)
145 else if (ascii_strncasecmp ("binary", c, sizeof ("binary") - 1) == 0)
148 if (ascii_strncasecmp
149 ("quoted-printable", c, sizeof ("quoted-printable") - 1) == 0)
150 return (ENCQUOTEDPRINTABLE);
151 else if (ascii_strncasecmp ("base64", c, sizeof ("base64") - 1) == 0)
153 else if (ascii_strncasecmp ("x-uuencode", c, sizeof ("x-uuencode") - 1) ==
155 return (ENCUUENCODED);
156 #ifdef SUN_ATTACHMENT
157 else if (ascii_strncasecmp ("uuencode", c, sizeof ("uuencode") - 1) == 0)
158 return (ENCUUENCODED);
164 static PARAMETER *parse_parameters (const char *s)
166 PARAMETER *head = 0, *cur = 0, *new;
167 char buffer[LONG_STRING];
171 dprint (2, (debugfile, "parse_parameters: `%s'\n", s));
174 if ((p = strpbrk (s, "=;")) == NULL) {
176 (debugfile, "parse_parameters: malformed parameter: %s\n", s));
180 /* if we hit a ; now the parameter has no value, just skip it */
184 new = mutt_new_parameter ();
186 new->attribute = safe_malloc (i + 1);
187 memcpy (new->attribute, s, i);
188 new->attribute[i] = 0;
190 /* remove whitespace from the end of the attribute name */
191 while (ISSPACE (new->attribute[--i]))
192 new->attribute[i] = 0;
194 s = p + 1; /* skip over the = */
201 for (i = 0; *s && i < sizeof (buffer) - 1; i++, s++) {
202 if (!option (OPTSTRICTMIME)) {
203 /* As iso-2022-* has a characer of '"' with non-ascii state,
205 if (*s == 0x1b && i < sizeof (buffer) - 2) {
206 if (s[1] == '(' && (s[2] == 'B' || s[2] == 'J'))
212 if (state_ascii && *s == '"')
215 /* Quote the next character */
225 s++; /* skip over the " */
228 for (i = 0; *s && *s != ' ' && *s != ';' && i < sizeof (buffer) - 1;
234 new->value = safe_strdup (buffer);
236 dprint (2, (debugfile, "parse_parameter: `%s' = `%s'\n",
237 new->attribute ? new->attribute : "",
238 new->value ? new->value : ""));
240 /* Add this parameter to the list */
250 (debugfile, "parse_parameters(): parameter with no value: %s\n",
255 /* Find the next parameter */
256 if (*s != ';' && (s = strchr (s, ';')) == NULL)
257 break; /* no more parameters */
262 /* Move past any leading whitespace */
265 while (*s == ';'); /* skip empty parameters */
270 rfc2231_decode_parameters (&head);
274 int mutt_check_mime_type (const char *s)
276 if (ascii_strcasecmp ("text", s) == 0)
278 else if (ascii_strcasecmp ("multipart", s) == 0)
279 return TYPEMULTIPART;
280 #ifdef SUN_ATTACHMENT
281 else if (ascii_strcasecmp ("x-sun-attachment", s) == 0)
282 return TYPEMULTIPART;
284 else if (ascii_strcasecmp ("application", s) == 0)
285 return TYPEAPPLICATION;
286 else if (ascii_strcasecmp ("message", s) == 0)
288 else if (ascii_strcasecmp ("image", s) == 0)
290 else if (ascii_strcasecmp ("audio", s) == 0)
292 else if (ascii_strcasecmp ("video", s) == 0)
294 else if (ascii_strcasecmp ("model", s) == 0)
300 void mutt_parse_content_type (char *s, BODY * ct)
306 mutt_free_parameter (&ct->parameter);
308 /* First extract any existing parameters */
309 if ((pc = strchr (s, ';')) != NULL) {
311 while (*pc && ISSPACE (*pc))
313 ct->parameter = parse_parameters (pc);
315 /* Some pre-RFC1521 gateways still use the "name=filename" convention,
316 * but if a filename has already been set in the content-disposition,
317 * let that take precedence, and don't set it here */
318 if ((pc = mutt_get_parameter ("name", ct->parameter)) != 0
320 ct->filename = safe_strdup (pc);
322 #ifdef SUN_ATTACHMENT
323 /* this is deep and utter perversion */
324 if ((pc = mutt_get_parameter ("conversions", ct->parameter)) != 0)
325 ct->encoding = mutt_check_encoding (pc);
330 /* Now get the subtype */
331 if ((subtype = strchr (s, '/'))) {
333 for (pc = subtype; *pc && !ISSPACE (*pc) && *pc != ';'; pc++);
335 ct->subtype = safe_strdup (subtype);
338 /* Finally, get the major type */
339 ct->type = mutt_check_mime_type (s);
341 #ifdef SUN_ATTACHMENT
342 if (ascii_strcasecmp ("x-sun-attachment", s) == 0)
343 ct->subtype = safe_strdup ("x-sun-attachment");
346 if (ct->type == TYPEOTHER) {
347 ct->xtype = safe_strdup (s);
350 if (ct->subtype == NULL) {
351 /* Some older non-MIME mailers (i.e., mailtool, elm) have a content-type
352 * field, so we can attempt to convert the type to BODY here.
354 if (ct->type == TYPETEXT)
355 ct->subtype = safe_strdup ("plain");
356 else if (ct->type == TYPEAUDIO)
357 ct->subtype = safe_strdup ("basic");
358 else if (ct->type == TYPEMESSAGE)
359 ct->subtype = safe_strdup ("rfc822");
360 else if (ct->type == TYPEOTHER) {
361 char buffer[SHORT_STRING];
363 ct->type = TYPEAPPLICATION;
364 snprintf (buffer, sizeof (buffer), "x-%s", s);
365 ct->subtype = safe_strdup (buffer);
368 ct->subtype = safe_strdup ("x-unknown");
371 /* Default character set for text types. */
372 if (ct->type == TYPETEXT) {
373 if (!(pc = mutt_get_parameter ("charset", ct->parameter)))
374 mutt_set_parameter ("charset", option (OPTSTRICTMIME) ? "us-ascii" :
376 mutt_get_first_charset (AssumedCharset),
382 static void parse_content_disposition (char *s, BODY * ct)
386 if (!ascii_strncasecmp ("inline", s, 6))
387 ct->disposition = DISPINLINE;
388 else if (!ascii_strncasecmp ("form-data", s, 9))
389 ct->disposition = DISPFORMDATA;
391 ct->disposition = DISPATTACH;
393 /* Check to see if a default filename was given */
394 if ((s = strchr (s, ';')) != NULL) {
398 mutt_get_parameter ("filename",
399 (parms = parse_parameters (s)))) != 0)
400 mutt_str_replace (&ct->filename, s);
401 if ((s = mutt_get_parameter ("name", parms)) != 0)
402 ct->form_name = safe_strdup (s);
403 mutt_free_parameter (&parms);
408 * fp stream to read from
410 * digest 1 if reading subparts of a multipart/digest, 0
414 BODY *mutt_read_mime_header (FILE * fp, int digest)
416 BODY *p = mutt_new_body ();
418 char *line = safe_malloc (LONG_STRING);
419 size_t linelen = LONG_STRING;
421 p->hdr_offset = ftell (fp);
423 p->encoding = ENC7BIT; /* default from RFC1521 */
424 p->type = digest ? TYPEMESSAGE : TYPETEXT;
425 p->disposition = DISPINLINE;
427 while (*(line = read_rfc822_line (fp, line, &linelen)) != 0) {
428 /* Find the value of the current header */
429 if ((c = strchr (line, ':'))) {
436 "mutt_read_mime_header(): skipping empty header field: %s\n",
443 (debugfile, "read_mime_header: bogus MIME header: %s\n", line));
447 if (!ascii_strncasecmp ("content-", line, 8)) {
448 if (!ascii_strcasecmp ("type", line + 8))
449 mutt_parse_content_type (c, p);
450 else if (!ascii_strcasecmp ("transfer-encoding", line + 8))
451 p->encoding = mutt_check_encoding (c);
452 else if (!ascii_strcasecmp ("disposition", line + 8))
453 parse_content_disposition (c, p);
454 else if (!ascii_strcasecmp ("description", line + 8)) {
455 mutt_str_replace (&p->description, c);
456 rfc2047_decode (&p->description);
459 #ifdef SUN_ATTACHMENT
460 else if (!ascii_strncasecmp ("x-sun-", line, 6)) {
461 if (!ascii_strcasecmp ("data-type", line + 6))
462 mutt_parse_content_type (c, p);
463 else if (!ascii_strcasecmp ("encoding-info", line + 6))
464 p->encoding = mutt_check_encoding (c);
465 else if (!ascii_strcasecmp ("content-lines", line + 6))
466 mutt_set_parameter ("content-lines", c, &(p->parameter));
467 else if (!ascii_strcasecmp ("data-description", line + 6)) {
468 mutt_str_replace (&p->description, c);
469 rfc2047_decode (&p->description);
474 p->offset = ftell (fp); /* Mark the start of the real data */
475 if (p->type == TYPETEXT && !p->subtype)
476 p->subtype = safe_strdup ("plain");
477 else if (p->type == TYPEMESSAGE && !p->subtype)
478 p->subtype = safe_strdup ("rfc822");
485 void mutt_parse_part (FILE * fp, BODY * b)
491 #ifdef SUN_ATTACHMENT
492 if (!ascii_strcasecmp (b->subtype, "x-sun-attachment"))
496 bound = mutt_get_parameter ("boundary", b->parameter);
498 fseek (fp, b->offset, SEEK_SET);
499 b->parts = mutt_parse_multipart (fp, bound,
500 b->offset + b->length,
501 ascii_strcasecmp ("digest",
507 fseek (fp, b->offset, SEEK_SET);
508 if (mutt_is_message_type (b->type, b->subtype))
509 b->parts = mutt_parse_messageRFC822 (fp, b);
510 else if (ascii_strcasecmp (b->subtype, "external-body") == 0)
511 b->parts = mutt_read_mime_header (fp, 0);
521 /* try to recover from parsing error */
524 mutt_str_replace (&b->subtype, "plain");
528 /* parse a MESSAGE/RFC822 body
531 * fp stream to read from
533 * parent structure which contains info about the message/rfc822
536 * NOTE: this assumes that `parent->length' has been set!
539 BODY *mutt_parse_messageRFC822 (FILE * fp, BODY * parent)
543 parent->hdr = mutt_new_header ();
544 parent->hdr->offset = ftell (fp);
545 parent->hdr->env = mutt_read_rfc822_header (fp, parent->hdr, 0, 0);
546 msg = parent->hdr->content;
548 /* ignore the length given in the content-length since it could be wrong
549 and we already have the info to calculate the correct length */
550 /* if (msg->length == -1) */
551 msg->length = parent->length - (msg->offset - parent->offset);
553 /* if body of this message is empty, we can end up with a negative length */
557 mutt_parse_part (fp, msg);
561 /* parse a multipart structure
564 * fp stream to read from
566 * boundary body separator
568 * end_off length of the multipart body (used when the final
569 * boundary is missing to avoid reading too far)
571 * digest 1 if reading a multipart/digest, 0 otherwise
574 BODY *mutt_parse_multipart (FILE * fp, const char *boundary, long end_off,
577 #ifdef SUN_ATTACHMENT
580 int blen, len, crlf = 0;
581 char buffer[LONG_STRING];
582 BODY *head = 0, *last = 0, *new = 0;
584 int final = 0; /* did we see the ending boundary? */
587 mutt_error _("multipart message has no boundary parameter!");
592 blen = mutt_strlen (boundary);
593 while (ftell (fp) < end_off && fgets (buffer, LONG_STRING, fp) != NULL) {
594 len = mutt_strlen (buffer);
596 crlf = (len > 1 && buffer[len - 2] == '\r') ? 1 : 0;
598 if (buffer[0] == '-' && buffer[1] == '-' &&
599 mutt_strncmp (buffer + 2, boundary, blen) == 0) {
601 last->length = ftell (fp) - last->offset - len - 1 - crlf;
602 if (last->parts && last->parts->length == 0)
603 last->parts->length =
604 ftell (fp) - last->parts->offset - len - 1 - crlf;
605 /* if the body is empty, we can end up with a -1 length */
606 if (last->length < 0)
610 /* Remove any trailing whitespace, up to the length of the boundary */
611 for (i = len - 1; ISSPACE (buffer[i]) && i >= blen + 2; i--)
614 /* Check for the end boundary */
615 if (mutt_strcmp (buffer + blen + 2, "--") == 0) {
617 break; /* done parsing */
619 else if (buffer[2 + blen] == 0) {
620 new = mutt_read_mime_header (fp, digest);
622 #ifdef SUN_ATTACHMENT
623 if (mutt_get_parameter ("content-lines", new->parameter)) {
625 atoi (mutt_get_parameter ("content-lines", new->parameter));
627 if (ftell (fp) >= end_off
628 || fgets (buffer, LONG_STRING, fp) == NULL)
634 * Consistency checking - catch
635 * bad attachment end boundaries
638 if (new->offset > end_off) {
639 mutt_free_body (&new);
652 /* in case of missing end boundary, set the length to something reasonable */
653 if (last && last->length == 0 && !final)
654 last->length = end_off - last->offset;
656 /* parse recursive MIME parts */
657 for (last = head; last; last = last->next)
658 mutt_parse_part (fp, last);
663 static const char *uncomment_timezone (char *buf, size_t buflen,
670 return tz; /* no need to do anything */
673 if ((p = strpbrk (tz, " )")) == NULL)
676 if (len > buflen - 1)
678 memcpy (buf, tz, len);
685 unsigned char zhours;
686 unsigned char zminutes;
687 unsigned char zoccident; /* west of UTC? */
690 "aat", 1, 0, 1}, /* Atlantic Africa Time */
692 "adt", 4, 0, 0}, /* Arabia DST */
694 "ast", 3, 0, 0}, /* Arabia */
695 /*{ "ast", 4, 0, 1 }, *//* Atlantic */
697 "bst", 1, 0, 0}, /* British DST */
699 "cat", 1, 0, 0}, /* Central Africa */
702 "cest", 2, 0, 0}, /* Central Europe DST */
704 "cet", 1, 0, 0}, /* Central Europe */
707 /*{ "cst", 8, 0, 0 }, *//* China */
708 /*{ "cst", 9, 30, 0 }, *//* Australian Central Standard Time */
710 "eat", 3, 0, 0}, /* East Africa */
713 "eest", 3, 0, 0}, /* Eastern Europe DST */
715 "eet", 2, 0, 0}, /* Eastern Europe */
717 "egst", 0, 0, 0}, /* Eastern Greenland DST */
719 "egt", 1, 0, 1}, /* Eastern Greenland */
723 "gst", 4, 0, 0}, /* Presian Gulf */
725 "hkt", 8, 0, 0}, /* Hong Kong */
727 "ict", 7, 0, 0}, /* Indochina */
729 "idt", 3, 0, 0}, /* Israel DST */
731 "ist", 2, 0, 0}, /* Israel */
732 /*{ "ist", 5, 30, 0 }, *//* India */
734 "jst", 9, 0, 0}, /* Japan */
736 "kst", 9, 0, 0}, /* Korea */
739 "met", 1, 0, 0}, /* this is now officially CET */
741 "msd", 4, 0, 0}, /* Moscow DST */
743 "msk", 3, 0, 0}, /* Moscow */
746 "nzdt", 13, 0, 0}, /* New Zealand DST */
748 "nzst", 12, 0, 0}, /* New Zealand */
752 "sat", 2, 0, 0}, /* South Africa */
754 "smt", 4, 0, 0}, /* Seychelles */
756 "sst", 11, 0, 1}, /* Samoa */
757 /*{ "sst", 8, 0, 0 }, *//* Singapore */
760 "wat", 0, 0, 0}, /* West Africa */
762 "west", 1, 0, 0}, /* Western Europe DST */
764 "wet", 0, 0, 0}, /* Western Europe */
766 "wgst", 2, 0, 1}, /* Western Greenland DST */
768 "wgt", 3, 0, 1}, /* Western Greenland */
770 "wst", 8, 0, 0}, /* Western Australia */
773 /* parses a date string in RFC822 format:
775 * Date: [ weekday , ] day-of-month month year hour:minute:second timezone
777 * This routine assumes that `h' has been initialized to 0. the `timezone'
778 * field is optional, defaulting to +0000 if missing.
780 time_t mutt_parse_date (const char *s, HEADER * h)
792 char tzstr[SHORT_STRING];
793 char scratch[SHORT_STRING];
795 /* Don't modify our argument. Fixed-size buffer is ok here since
796 * the date format imposes a natural limit.
799 strfcpy (scratch, s, sizeof (scratch));
801 /* kill the day of the week, if it exists. */
802 if ((t = strchr (scratch, ',')))
808 memset (&tm, 0, sizeof (tm));
810 while ((t = strtok (t, " \t")) != NULL) {
812 case 0: /* day of the month */
813 if (!isdigit ((unsigned char) *t))
815 tm.tm_mday = atoi (t);
820 case 1: /* month of the year */
821 if ((i = mutt_check_month (t)) < 0)
827 tm.tm_year = atoi (t);
830 else if (tm.tm_year >= 1900)
834 case 3: /* time of day */
835 if (sscanf (t, "%d:%d:%d", &hour, &min, &sec) == 3);
836 else if (sscanf (t, "%d:%d", &hour, &min) == 2)
840 (debugfile, "parse_date: could not process time format: %s\n",
849 case 4: /* timezone */
850 /* sometimes we see things like (MST) or (-0700) so attempt to
851 * compensate by uncommenting the string if non-RFC822 compliant
853 ptz = uncomment_timezone (tzstr, sizeof (tzstr), t);
855 if (*ptz == '+' || *ptz == '-') {
856 if (ptz[1] && ptz[2] && ptz[3] && ptz[4]
857 && isdigit ((unsigned char) ptz[1])
858 && isdigit ((unsigned char) ptz[2])
859 && isdigit ((unsigned char) ptz[3])
860 && isdigit ((unsigned char) ptz[4])) {
861 zhours = (ptz[1] - '0') * 10 + (ptz[2] - '0');
862 zminutes = (ptz[3] - '0') * 10 + (ptz[4] - '0');
871 tz = bsearch (ptz, TimeZones, sizeof TimeZones / sizeof (struct tz_t),
872 sizeof (struct tz_t),
873 (int (*)(const void *, const void *)) ascii_strcasecmp
874 /* This is safe to do: A pointer to a struct equals
875 * a pointer to its first element*/ );
879 zminutes = tz->zminutes;
880 zoccident = tz->zoccident;
883 /* ad hoc support for the European MET (now officially CET) TZ */
884 if (ascii_strcasecmp (t, "MET") == 0) {
885 if ((t = strtok (NULL, " \t")) != NULL) {
886 if (!ascii_strcasecmp (t, "DST"))
891 tz_offset = zhours * 3600 + zminutes * 60;
893 tz_offset = -tz_offset;
900 if (count < 4) { /* don't check for missing timezone */
903 "parse_date(): error parsing date format, using received time\n"));
909 h->zminutes = zminutes;
910 h->zoccident = zoccident;
913 return (mutt_mktime (&tm, 0) + tz_offset);
916 /* extract the first substring that looks like a message-id */
917 static char *extract_message_id (const char *s)
923 if ((s = strchr (s, '<')) == NULL || (p = strchr (s, '>')) == NULL)
925 l = (size_t) (p - s) + 1;
926 r = safe_malloc (l + 1);
932 void mutt_parse_mime_message (CONTEXT * ctx, HEADER * cur)
936 if (cur->content->type != TYPEMESSAGE
937 && cur->content->type != TYPEMULTIPART)
938 return; /* nothing to do */
940 if (cur->content->parts)
941 return; /* The message was parsed earlier. */
943 if ((msg = mx_open_message (ctx, cur->msgno))) {
944 mutt_parse_part (msg->fp, cur->content);
947 cur->security = crypt_query (cur->content);
949 mx_close_message (&msg);
953 int mutt_parse_rfc822_line (ENVELOPE * e, HEADER * hdr, char *line, char *p,
954 short user_hdrs, short weed, short do_2047,
963 switch (ascii_tolower (line[0])) {
965 if (ascii_strcasecmp (line + 1, "pparently-to") == 0) {
966 e->to = rfc822_parse_adrlist (e->to, p);
969 else if (ascii_strcasecmp (line + 1, "pparently-from") == 0) {
970 e->from = rfc822_parse_adrlist (e->from, p);
976 if (ascii_strcasecmp (line + 1, "cc") == 0) {
977 e->bcc = rfc822_parse_adrlist (e->bcc, p);
983 if (ascii_strcasecmp (line + 1, "c") == 0) {
984 e->cc = rfc822_parse_adrlist (e->cc, p);
987 else if (ascii_strncasecmp (line + 1, "ontent-", 7) == 0) {
988 if (ascii_strcasecmp (line + 8, "type") == 0) {
990 mutt_parse_content_type (p, hdr->content);
993 else if (ascii_strcasecmp (line + 8, "transfer-encoding") == 0) {
995 hdr->content->encoding = mutt_check_encoding (p);
998 else if (ascii_strcasecmp (line + 8, "length") == 0) {
1000 if ((hdr->content->length = atoi (p)) < 0)
1001 hdr->content->length = -1;
1005 else if (ascii_strcasecmp (line + 8, "description") == 0) {
1007 mutt_str_replace (&hdr->content->description, p);
1008 rfc2047_decode (&hdr->content->description);
1012 else if (ascii_strcasecmp (line + 8, "disposition") == 0) {
1014 parse_content_disposition (p, hdr->content);
1021 if (!ascii_strcasecmp ("ate", line + 1)) {
1022 mutt_str_replace (&e->date, p);
1024 hdr->date_sent = mutt_parse_date (p, hdr);
1030 if (!ascii_strcasecmp ("xpires", line + 1) &&
1031 hdr && mutt_parse_date (p, NULL) < time (NULL))
1036 if (!ascii_strcasecmp ("rom", line + 1)) {
1037 e->from = rfc822_parse_adrlist (e->from, p);
1038 /* don't leave from info NULL if there's an invalid address (or
1039 * whatever) in From: field; mutt would just display it as empty
1040 * and mark mail/(esp.) news article as your own. aaargh! this
1041 * bothered me for _years_ */
1043 e->from = rfc822_new_address ();
1044 e->from->personal = safe_strdup (line + 6);
1049 else if (!mutt_strcasecmp (line + 1, "ollowup-to")) {
1050 if (!e->followup_to) {
1051 mutt_remove_trailing_ws (p);
1052 e->followup_to = safe_strdup (mutt_skip_whitespace (p));
1060 if (!ascii_strcasecmp (line + 1, "n-reply-to")) {
1061 mutt_free_list (&e->in_reply_to);
1062 e->in_reply_to = mutt_parse_references (p, 1);
1068 if (!ascii_strcasecmp (line + 1, "ines")) {
1070 hdr->lines = atoi (p);
1073 * HACK - mutt has, for a very short time, produced negative
1074 * Lines header values. Ignore them.
1082 else if (!ascii_strcasecmp (line + 1, "ist-Post")) {
1083 /* RFC 2369. FIXME: We should ignore whitespace, but don't. */
1084 if (strncmp (p, "NO", 2)) {
1087 for (beg = strchr (p, '<'); beg; beg = strchr (end, ',')) {
1089 if (!(end = strchr (beg, '>')))
1092 /* Take the first mailto URL */
1093 if (url_check_scheme (beg) == U_MAILTO) {
1094 FREE (&e->list_post);
1095 e->list_post = mutt_substrdup (beg, end);
1105 if (!ascii_strcasecmp (line + 1, "ime-version")) {
1110 else if (!ascii_strcasecmp (line + 1, "essage-id")) {
1111 /* We add a new "Message-Id:" when building a message */
1112 FREE (&e->message_id);
1113 e->message_id = extract_message_id (p);
1116 else if (!ascii_strncasecmp (line + 1, "ail-", 4)) {
1117 if (!ascii_strcasecmp (line + 5, "reply-to")) {
1118 /* override the Reply-To: field */
1119 rfc822_free_address (&e->reply_to);
1120 e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
1123 else if (!ascii_strcasecmp (line + 5, "followup-to")) {
1124 e->mail_followup_to = rfc822_parse_adrlist (e->mail_followup_to, p);
1132 if (!mutt_strcasecmp (line + 1, "ewsgroups")) {
1133 FREE (&e->newsgroups);
1134 mutt_remove_trailing_ws (p);
1135 e->newsgroups = safe_strdup (mutt_skip_whitespace (p));
1142 /* field `Organization:' saves only for pager! */
1143 if (!mutt_strcasecmp (line + 1, "rganization")) {
1144 if (!e->organization && mutt_strcasecmp (p, "unknown"))
1145 e->organization = safe_strdup (p);
1150 if (!ascii_strcasecmp (line + 1, "eferences")) {
1151 mutt_free_list (&e->references);
1152 e->references = mutt_parse_references (p, 0);
1155 else if (!ascii_strcasecmp (line + 1, "eply-to")) {
1156 e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
1159 else if (!ascii_strcasecmp (line + 1, "eturn-path")) {
1160 e->return_path = rfc822_parse_adrlist (e->return_path, p);
1163 else if (!ascii_strcasecmp (line + 1, "eceived")) {
1164 if (hdr && !hdr->received) {
1165 char *d = strchr (p, ';');
1168 hdr->received = mutt_parse_date (d + 1, NULL);
1174 if (!ascii_strcasecmp (line + 1, "ubject")) {
1176 e->subject = safe_strdup (p);
1179 else if (!ascii_strcasecmp (line + 1, "ender")) {
1180 e->sender = rfc822_parse_adrlist (e->sender, p);
1183 else if (!ascii_strcasecmp (line + 1, "tatus")) {
1202 else if ((!ascii_strcasecmp ("upersedes", line + 1) ||
1203 !ascii_strcasecmp ("upercedes", line + 1)) && hdr)
1204 e->supersedes = safe_strdup (p);
1208 if (ascii_strcasecmp (line + 1, "o") == 0) {
1209 e->to = rfc822_parse_adrlist (e->to, p);
1215 if (ascii_strcasecmp (line + 1, "-status") == 0) {
1236 else if (ascii_strcasecmp (line + 1, "-label") == 0) {
1237 e->x_label = safe_strdup (p);
1241 else if (!mutt_strcasecmp (line + 1, "-comment-to")) {
1242 if (!e->x_comment_to)
1243 e->x_comment_to = safe_strdup (p);
1246 else if (!mutt_strcasecmp (line + 1, "ref")) {
1248 e->xref = safe_strdup (p);
1257 /* Keep track of the user-defined headers */
1258 if (!matched && user_hdrs) {
1259 /* restore the original line */
1260 line[mutt_strlen (line)] = ':';
1262 if (weed && option (OPTWEED) && mutt_matches_ignore (line, Ignore)
1263 && !mutt_matches_ignore (line, UnIgnore))
1267 last->next = mutt_new_list ();
1271 last = e->userhdrs = mutt_new_list ();
1272 last->data = safe_strdup (line);
1274 rfc2047_decode (&last->data);
1284 /* mutt_read_rfc822_header() -- parses a RFC822 header
1288 * f stream to read from
1290 * hdr header structure of current message (optional).
1292 * user_hdrs If set, store user headers. Used for recall-message and
1295 * weed If this parameter is set and the user has activated the
1296 * $weed option, honor the header weed list for user headers.
1297 * Used for recall-message.
1299 * Returns: newly allocated envelope structure. You should free it by
1300 * mutt_free_envelope() when envelope stay unneeded.
1302 ENVELOPE *mutt_read_rfc822_header (FILE * f, HEADER * hdr, short user_hdrs,
1305 ENVELOPE *e = mutt_new_envelope ();
1307 char *line = safe_malloc (LONG_STRING);
1311 size_t linelen = LONG_STRING;
1312 char buf[LONG_STRING + 1];
1315 if (hdr->content == NULL) {
1316 hdr->content = mutt_new_body ();
1318 /* set the defaults from RFC1521 */
1319 hdr->content->type = TYPETEXT;
1320 hdr->content->subtype = safe_strdup ("plain");
1321 hdr->content->encoding = ENC7BIT;
1322 hdr->content->length = -1;
1324 /* RFC 2183 says this is arbitrary */
1325 hdr->content->disposition = DISPINLINE;
1329 while ((loc = ftell (f)),
1330 *(line = read_rfc822_line (f, line, &linelen)) != 0) {
1333 if ((p = strpbrk (line, ": \t")) == NULL || *p != ':') {
1334 char return_path[LONG_STRING];
1337 /* some bogus MTAs will quote the original "From " line */
1338 if (mutt_strncmp (">From ", line, 6) == 0)
1339 continue; /* just ignore */
1340 else if (is_from (line, return_path, sizeof (return_path), &t)) {
1341 /* MH somtimes has the From_ line in the middle of the header! */
1342 if (hdr && !hdr->received)
1343 hdr->received = t - mutt_local_tz (t);
1348 break; /* end of header */
1353 if (mutt_match_spam_list (line, SpamList, buf, sizeof (buf))) {
1354 if (!rx_list_match (NoSpamList, line)) {
1356 /* if spam tag already exists, figure out how to amend it */
1357 if (e->spam && *buf) {
1358 /* If SpamSep defined, append with separator */
1360 mutt_buffer_addstr (e->spam, SpamSep);
1361 mutt_buffer_addstr (e->spam, buf);
1364 /* else overwrite */
1366 e->spam->dptr = e->spam->data;
1367 *e->spam->dptr = '\0';
1368 mutt_buffer_addstr (e->spam, buf);
1372 /* spam tag is new, and match expr is non-empty; copy */
1373 else if (!e->spam && *buf) {
1374 e->spam = mutt_buffer_from (NULL, buf);
1377 /* match expr is empty; plug in null string if no existing tag */
1378 else if (!e->spam) {
1379 e->spam = mutt_buffer_from (NULL, "");
1382 if (e->spam && e->spam->data)
1383 dprint (5, (debugfile, "p822: spam = %s\n", e->spam->data));
1391 continue; /* skip empty header fields */
1394 mutt_parse_rfc822_line (e, hdr, line, p, user_hdrs, weed, 1, &last);
1401 hdr->content->hdr_offset = hdr->offset;
1402 hdr->content->offset = ftell (f);
1404 /* do RFC2047 decoding */
1405 rfc2047_decode_adrlist (e->from);
1406 rfc2047_decode_adrlist (e->to);
1407 rfc2047_decode_adrlist (e->cc);
1408 rfc2047_decode_adrlist (e->bcc);
1409 rfc2047_decode_adrlist (e->reply_to);
1410 rfc2047_decode_adrlist (e->mail_followup_to);
1411 rfc2047_decode_adrlist (e->return_path);
1412 rfc2047_decode_adrlist (e->sender);
1415 regmatch_t pmatch[1];
1417 rfc2047_decode (&e->subject);
1419 if (regexec (ReplyRegexp.rx, e->subject, 1, pmatch, 0) == 0)
1420 e->real_subj = e->subject + pmatch[0].rm_eo;
1422 e->real_subj = e->subject;
1425 /* check for missing or invalid date */
1426 if (hdr->date_sent <= 0) {
1429 "read_rfc822_header(): no date found, using received time from msg separator\n"));
1430 hdr->date_sent = hdr->received;
1437 ADDRESS *mutt_parse_adrlist (ADDRESS * p, const char *s)
1441 /* check for a simple whitespace separated list of addresses */
1442 if ((q = strpbrk (s, "\"<>():;,\\")) == NULL) {
1443 char tmp[HUGE_STRING];
1446 strfcpy (tmp, s, sizeof (tmp));
1448 while ((r = strtok (r, " \t")) != NULL) {
1449 p = rfc822_parse_adrlist (p, r);
1454 p = rfc822_parse_adrlist (p, s);