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.
18 #include "recvattach.h"
23 #include "mutt_crypt.h"
30 #include "lib/debug.h"
37 /* Reads an arbitrarily long header field, and looks ahead for continuation
38 * lines. ``line'' must point to a dynamically allocated string; it is
39 * increased if more space is required to fit the whole line.
41 char *mutt_read_rfc822_line (FILE * f, char *line, size_t * linelen)
48 if (fgets (buf, *linelen - offset, f) == NULL || /* end of file or */
49 (ISSPACE (*line) && !offset)) { /* end of headers */
54 buf += str_len (buf) - 1;
56 /* we did get a full line. remove trailing space */
57 while (ISSPACE (*buf))
58 *buf-- = 0; /* we cannot come beyond line's beginning because
59 * it begins with a non-space */
61 /* check to see if the next line is a continuation line */
62 if ((ch = fgetc (f)) != ' ' && ch != '\t') {
64 return (line); /* next line is a separate header field or EOH */
67 /* eat tabs and spaces from the beginning of the continuation line */
68 while ((ch = fgetc (f)) == ' ' || ch == '\t');
70 *++buf = ' '; /* string is still terminated because we removed
71 at least one whitespace char above */
76 if (*linelen < offset + STRING) {
79 mem_realloc (&line, *linelen);
86 LIST *mutt_parse_references (char *s, int in_reply_to)
90 char *o = NULL, *new, *at;
92 while ((s = strtok (s, " \t;")) != NULL) {
94 * some mail clients add other garbage besides message-ids, so do a quick
95 * check to make sure this looks like a valid message-id
96 * some idiotic clients also break their message-ids between lines, deal
97 * with that too (give up if it's more than two lines, though)
104 if (s[n - 1] != '>') {
114 if (s[m - 1] == '>') {
115 new = mem_malloc (sizeof (char) * (n + m + 1));
116 strcpy (new, o); /* __STRCPY_CHECKED__ */
117 strcpy (new + n, s); /* __STRCPY_CHECKED__ */
121 /* make sure that this really does look like a message-id.
122 * it should have exactly one @, and if we're looking at
123 * an in-reply-to header, make sure that the part before
124 * the @ has more than eight characters or it's probably
127 if (!(at = strchr (new, '@')) || strchr (at + 1, '@')
128 || (in_reply_to && at - new <= 8))
131 t = (LIST *) mem_malloc (sizeof (LIST));
144 int mutt_check_encoding (const char *c)
146 if (ascii_strncasecmp ("7bit", c, sizeof ("7bit") - 1) == 0)
148 else if (ascii_strncasecmp ("8bit", c, sizeof ("8bit") - 1) == 0)
150 else if (ascii_strncasecmp ("binary", c, sizeof ("binary") - 1) == 0)
153 if (ascii_strncasecmp
154 ("quoted-printable", c, sizeof ("quoted-printable") - 1) == 0)
155 return (ENCQUOTEDPRINTABLE);
156 else if (ascii_strncasecmp ("base64", c, sizeof ("base64") - 1) == 0)
158 else if (ascii_strncasecmp ("x-uuencode", c, sizeof ("x-uuencode") - 1) ==
160 return (ENCUUENCODED);
161 #ifdef SUN_ATTACHMENT
162 else if (ascii_strncasecmp ("uuencode", c, sizeof ("uuencode") - 1) == 0)
163 return (ENCUUENCODED);
169 static PARAMETER *parse_parameters (const char *s)
171 PARAMETER *head = 0, *cur = 0, *new;
172 char buffer[LONG_STRING];
176 debug_print (2, ("`%s'\n", s));
179 if ((p = strpbrk (s, "=;")) == NULL) {
180 debug_print (1, ("malformed parameter: %s\n", s));
184 /* if we hit a ; now the parameter has no value, just skip it */
188 new = mutt_new_parameter ();
190 new->attribute = mem_malloc (i + 1);
191 memcpy (new->attribute, s, i);
192 new->attribute[i] = 0;
194 /* remove whitespace from the end of the attribute name */
195 while (ISSPACE (new->attribute[--i]))
196 new->attribute[i] = 0;
198 s = p + 1; /* skip over the = */
205 for (i = 0; *s && i < sizeof (buffer) - 1; i++, s++) {
206 if (!option (OPTSTRICTMIME)) {
207 /* As iso-2022-* has a characer of '"' with non-ascii state,
209 if (*s == 0x1b && i < sizeof (buffer) - 2) {
210 if (s[1] == '(' && (s[2] == 'B' || s[2] == 'J'))
216 if (state_ascii && *s == '"')
219 /* Quote the next character */
229 s++; /* skip over the " */
232 for (i = 0; *s && *s != ' ' && *s != ';' && i < sizeof (buffer) - 1;
238 new->value = str_dup (buffer);
240 debug_print (2, ("`%s' = `%s'\n", new->attribute ? new->attribute : "",
241 new->value ? new->value : ""));
243 /* Add this parameter to the list */
252 debug_print (1, ("parameter with no value: %s\n", s));
256 /* Find the next parameter */
257 if (*s != ';' && (s = strchr (s, ';')) == NULL)
258 break; /* no more parameters */
263 /* Move past any leading whitespace */
266 while (*s == ';'); /* skip empty parameters */
271 rfc2231_decode_parameters (&head);
275 int mutt_check_mime_type (const char *s)
277 if (ascii_strcasecmp ("text", s) == 0)
279 else if (ascii_strcasecmp ("multipart", s) == 0)
280 return TYPEMULTIPART;
281 #ifdef SUN_ATTACHMENT
282 else if (ascii_strcasecmp ("x-sun-attachment", s) == 0)
283 return TYPEMULTIPART;
285 else if (ascii_strcasecmp ("application", s) == 0)
286 return TYPEAPPLICATION;
287 else if (ascii_strcasecmp ("message", s) == 0)
289 else if (ascii_strcasecmp ("image", s) == 0)
291 else if (ascii_strcasecmp ("audio", s) == 0)
293 else if (ascii_strcasecmp ("video", s) == 0)
295 else if (ascii_strcasecmp ("model", s) == 0)
301 void mutt_parse_content_type (char *s, BODY * ct)
306 mem_free (&ct->subtype);
307 mutt_free_parameter (&ct->parameter);
309 /* First extract any existing parameters */
310 if ((pc = strchr (s, ';')) != NULL) {
312 while (*pc && ISSPACE (*pc))
314 ct->parameter = parse_parameters (pc);
316 /* Some pre-RFC1521 gateways still use the "name=filename" convention,
317 * but if a filename has already been set in the content-disposition,
318 * let that take precedence, and don't set it here */
319 if ((pc = mutt_get_parameter ("name", ct->parameter)) != 0
321 ct->filename = str_dup (pc);
323 #ifdef SUN_ATTACHMENT
324 /* this is deep and utter perversion */
325 if ((pc = mutt_get_parameter ("conversions", ct->parameter)) != 0)
326 ct->encoding = mutt_check_encoding (pc);
331 /* Now get the subtype */
332 if ((subtype = strchr (s, '/'))) {
334 for (pc = subtype; *pc && !ISSPACE (*pc) && *pc != ';'; pc++);
336 ct->subtype = str_dup (subtype);
339 /* Finally, get the major type */
340 ct->type = mutt_check_mime_type (s);
342 #ifdef SUN_ATTACHMENT
343 if (ascii_strcasecmp ("x-sun-attachment", s) == 0)
344 ct->subtype = str_dup ("x-sun-attachment");
347 if (ct->type == TYPEOTHER) {
348 ct->xtype = str_dup (s);
351 if (ct->subtype == NULL) {
352 /* Some older non-MIME mailers (i.e., mailtool, elm) have a content-type
353 * field, so we can attempt to convert the type to BODY here.
355 if (ct->type == TYPETEXT)
356 ct->subtype = str_dup ("plain");
357 else if (ct->type == TYPEAUDIO)
358 ct->subtype = str_dup ("basic");
359 else if (ct->type == TYPEMESSAGE)
360 ct->subtype = str_dup ("rfc822");
361 else if (ct->type == TYPEOTHER) {
362 char buffer[SHORT_STRING];
364 ct->type = TYPEAPPLICATION;
365 snprintf (buffer, sizeof (buffer), "x-%s", s);
366 ct->subtype = str_dup (buffer);
369 ct->subtype = str_dup ("x-unknown");
372 /* Default character set for text types. */
373 if (ct->type == TYPETEXT) {
374 if (!(pc = mutt_get_parameter ("charset", ct->parameter)))
375 mutt_set_parameter ("charset", option (OPTSTRICTMIME) ? "us-ascii" :
377 mutt_get_first_charset (AssumedCharset),
383 static void parse_content_disposition (char *s, BODY * ct)
387 if (!ascii_strncasecmp ("inline", s, 6))
388 ct->disposition = DISPINLINE;
389 else if (!ascii_strncasecmp ("form-data", s, 9))
390 ct->disposition = DISPFORMDATA;
392 ct->disposition = DISPATTACH;
394 /* Check to see if a default filename was given */
395 if ((s = strchr (s, ';')) != NULL) {
399 mutt_get_parameter ("filename",
400 (parms = parse_parameters (s)))) != 0)
401 str_replace (&ct->filename, s);
402 if ((s = mutt_get_parameter ("name", parms)) != 0)
403 ct->form_name = str_dup (s);
404 mutt_free_parameter (&parms);
409 * fp stream to read from
411 * digest 1 if reading subparts of a multipart/digest, 0
415 BODY *mutt_read_mime_header (FILE * fp, int digest)
417 BODY *p = mutt_new_body ();
419 char *line = mem_malloc (LONG_STRING);
420 size_t linelen = LONG_STRING;
422 p->hdr_offset = ftell (fp);
424 p->encoding = ENC7BIT; /* default from RFC1521 */
425 p->type = digest ? TYPEMESSAGE : TYPETEXT;
426 p->disposition = DISPINLINE;
428 while (*(line = mutt_read_rfc822_line (fp, line, &linelen)) != 0) {
429 /* Find the value of the current header */
430 if ((c = strchr (line, ':'))) {
435 debug_print (1, ("skipping empty header field: %s\n", line));
440 debug_print (1, ("bogus MIME header: %s\n", line));
444 if (!ascii_strncasecmp ("content-", line, 8)) {
445 if (!ascii_strcasecmp ("type", line + 8))
446 mutt_parse_content_type (c, p);
447 else if (!ascii_strcasecmp ("transfer-encoding", line + 8))
448 p->encoding = mutt_check_encoding (c);
449 else if (!ascii_strcasecmp ("disposition", line + 8))
450 parse_content_disposition (c, p);
451 else if (!ascii_strcasecmp ("description", line + 8)) {
452 str_replace (&p->description, c);
453 rfc2047_decode (&p->description);
456 #ifdef SUN_ATTACHMENT
457 else if (!ascii_strncasecmp ("x-sun-", line, 6)) {
458 if (!ascii_strcasecmp ("data-type", line + 6))
459 mutt_parse_content_type (c, p);
460 else if (!ascii_strcasecmp ("encoding-info", line + 6))
461 p->encoding = mutt_check_encoding (c);
462 else if (!ascii_strcasecmp ("content-lines", line + 6))
463 mutt_set_parameter ("content-lines", c, &(p->parameter));
464 else if (!ascii_strcasecmp ("data-description", line + 6)) {
465 str_replace (&p->description, c);
466 rfc2047_decode (&p->description);
471 p->offset = ftell (fp); /* Mark the start of the real data */
472 if (p->type == TYPETEXT && !p->subtype)
473 p->subtype = str_dup ("plain");
474 else if (p->type == TYPEMESSAGE && !p->subtype)
475 p->subtype = str_dup ("rfc822");
482 void mutt_parse_part (FILE * fp, BODY * b)
488 #ifdef SUN_ATTACHMENT
489 if (!ascii_strcasecmp (b->subtype, "x-sun-attachment"))
493 bound = mutt_get_parameter ("boundary", b->parameter);
495 fseek (fp, b->offset, SEEK_SET);
496 b->parts = mutt_parse_multipart (fp, bound,
497 b->offset + b->length,
498 ascii_strcasecmp ("digest",
504 fseek (fp, b->offset, SEEK_SET);
505 if (mutt_is_message_type (b->type, b->subtype))
506 b->parts = mutt_parse_messageRFC822 (fp, b);
507 else if (ascii_strcasecmp (b->subtype, "external-body") == 0)
508 b->parts = mutt_read_mime_header (fp, 0);
518 /* try to recover from parsing error */
521 str_replace (&b->subtype, "plain");
525 /* parse a MESSAGE/RFC822 body
528 * fp stream to read from
530 * parent structure which contains info about the message/rfc822
533 * NOTE: this assumes that `parent->length' has been set!
536 BODY *mutt_parse_messageRFC822 (FILE * fp, BODY * parent)
540 parent->hdr = mutt_new_header ();
541 parent->hdr->offset = ftell (fp);
542 parent->hdr->env = mutt_read_rfc822_header (fp, parent->hdr, 0, 0);
543 msg = parent->hdr->content;
545 /* ignore the length given in the content-length since it could be wrong
546 and we already have the info to calculate the correct length */
547 /* if (msg->length == -1) */
548 msg->length = parent->length - (msg->offset - parent->offset);
550 /* if body of this message is empty, we can end up with a negative length */
554 mutt_parse_part (fp, msg);
558 /* parse a multipart structure
561 * fp stream to read from
563 * boundary body separator
565 * end_off length of the multipart body (used when the final
566 * boundary is missing to avoid reading too far)
568 * digest 1 if reading a multipart/digest, 0 otherwise
571 BODY *mutt_parse_multipart (FILE * fp, const char *boundary, long end_off,
574 #ifdef SUN_ATTACHMENT
577 int blen, len, crlf = 0;
578 char buffer[LONG_STRING];
579 BODY *head = 0, *last = 0, *new = 0;
581 int final = 0; /* did we see the ending boundary? */
584 mutt_error _("multipart message has no boundary parameter!");
589 blen = str_len (boundary);
590 while (ftell (fp) < end_off && fgets (buffer, LONG_STRING, fp) != NULL) {
591 len = str_len (buffer);
593 crlf = (len > 1 && buffer[len - 2] == '\r') ? 1 : 0;
595 if (buffer[0] == '-' && buffer[1] == '-' &&
596 str_ncmp (buffer + 2, boundary, blen) == 0) {
598 last->length = ftell (fp) - last->offset - len - 1 - crlf;
599 if (last->parts && last->parts->length == 0)
600 last->parts->length =
601 ftell (fp) - last->parts->offset - len - 1 - crlf;
602 /* if the body is empty, we can end up with a -1 length */
603 if (last->length < 0)
607 /* Remove any trailing whitespace, up to the length of the boundary */
608 for (i = len - 1; ISSPACE (buffer[i]) && i >= blen + 2; i--)
611 /* Check for the end boundary */
612 if (str_cmp (buffer + blen + 2, "--") == 0) {
614 break; /* done parsing */
616 else if (buffer[2 + blen] == 0) {
617 new = mutt_read_mime_header (fp, digest);
619 #ifdef SUN_ATTACHMENT
620 if (mutt_get_parameter ("content-lines", new->parameter)) {
622 atoi (mutt_get_parameter ("content-lines", new->parameter));
624 if (ftell (fp) >= end_off
625 || fgets (buffer, LONG_STRING, fp) == NULL)
631 * Consistency checking - catch
632 * bad attachment end boundaries
635 if (new->offset > end_off) {
636 mutt_free_body (&new);
649 /* in case of missing end boundary, set the length to something reasonable */
650 if (last && last->length == 0 && !final)
651 last->length = end_off - last->offset;
653 /* parse recursive MIME parts */
654 for (last = head; last; last = last->next)
655 mutt_parse_part (fp, last);
660 static const char *uncomment_timezone (char *buf, size_t buflen,
667 return tz; /* no need to do anything */
670 if ((p = strpbrk (tz, " )")) == NULL)
673 if (len > buflen - 1)
675 memcpy (buf, tz, len);
682 unsigned char zhours;
683 unsigned char zminutes;
684 unsigned char zoccident; /* west of UTC? */
687 "aat", 1, 0, 1}, /* Atlantic Africa Time */
689 "adt", 4, 0, 0}, /* Arabia DST */
691 "ast", 3, 0, 0}, /* Arabia */
692 /*{ "ast", 4, 0, 1 }, *//* Atlantic */
694 "bst", 1, 0, 0}, /* British DST */
696 "cat", 1, 0, 0}, /* Central Africa */
699 "cest", 2, 0, 0}, /* Central Europe DST */
701 "cet", 1, 0, 0}, /* Central Europe */
704 /*{ "cst", 8, 0, 0 }, *//* China */
705 /*{ "cst", 9, 30, 0 }, *//* Australian Central Standard Time */
707 "eat", 3, 0, 0}, /* East Africa */
710 "eest", 3, 0, 0}, /* Eastern Europe DST */
712 "eet", 2, 0, 0}, /* Eastern Europe */
714 "egst", 0, 0, 0}, /* Eastern Greenland DST */
716 "egt", 1, 0, 1}, /* Eastern Greenland */
720 "gst", 4, 0, 0}, /* Presian Gulf */
722 "hkt", 8, 0, 0}, /* Hong Kong */
724 "ict", 7, 0, 0}, /* Indochina */
726 "idt", 3, 0, 0}, /* Israel DST */
728 "ist", 2, 0, 0}, /* Israel */
729 /*{ "ist", 5, 30, 0 }, *//* India */
731 "jst", 9, 0, 0}, /* Japan */
733 "kst", 9, 0, 0}, /* Korea */
736 "met", 1, 0, 0}, /* this is now officially CET */
738 "msd", 4, 0, 0}, /* Moscow DST */
740 "msk", 3, 0, 0}, /* Moscow */
743 "nzdt", 13, 0, 0}, /* New Zealand DST */
745 "nzst", 12, 0, 0}, /* New Zealand */
749 "sat", 2, 0, 0}, /* South Africa */
751 "smt", 4, 0, 0}, /* Seychelles */
753 "sst", 11, 0, 1}, /* Samoa */
754 /*{ "sst", 8, 0, 0 }, *//* Singapore */
757 "wat", 0, 0, 0}, /* West Africa */
759 "west", 1, 0, 0}, /* Western Europe DST */
761 "wet", 0, 0, 0}, /* Western Europe */
763 "wgst", 2, 0, 1}, /* Western Greenland DST */
765 "wgt", 3, 0, 1}, /* Western Greenland */
767 "wst", 8, 0, 0}, /* Western Australia */
770 /* parses a date string in RFC822 format:
772 * Date: [ weekday , ] day-of-month month year hour:minute:second timezone
774 * This routine assumes that `h' has been initialized to 0. the `timezone'
775 * field is optional, defaulting to +0000 if missing.
777 time_t mutt_parse_date (const char *s, HEADER * h)
789 char tzstr[SHORT_STRING];
790 char scratch[SHORT_STRING];
792 /* Don't modify our argument. Fixed-size buffer is ok here since
793 * the date format imposes a natural limit.
796 strfcpy (scratch, s, sizeof (scratch));
798 /* kill the day of the week, if it exists. */
799 if ((t = strchr (scratch, ',')))
805 memset (&tm, 0, sizeof (tm));
807 while ((t = strtok (t, " \t")) != NULL) {
809 case 0: /* day of the month */
810 if (!isdigit ((unsigned char) *t))
812 tm.tm_mday = atoi (t);
817 case 1: /* month of the year */
818 if ((i = mutt_check_month (t)) < 0)
824 tm.tm_year = atoi (t);
827 else if (tm.tm_year >= 1900)
831 case 3: /* time of day */
832 if (sscanf (t, "%d:%d:%d", &hour, &min, &sec) == 3);
833 else if (sscanf (t, "%d:%d", &hour, &min) == 2)
836 debug_print (1, ("could not process time format: %s\n", t));
844 case 4: /* timezone */
845 /* sometimes we see things like (MST) or (-0700) so attempt to
846 * compensate by uncommenting the string if non-RFC822 compliant
848 ptz = uncomment_timezone (tzstr, sizeof (tzstr), t);
850 if (*ptz == '+' || *ptz == '-') {
851 if (ptz[1] && ptz[2] && ptz[3] && ptz[4]
852 && isdigit ((unsigned char) ptz[1])
853 && isdigit ((unsigned char) ptz[2])
854 && isdigit ((unsigned char) ptz[3])
855 && isdigit ((unsigned char) ptz[4])) {
856 zhours = (ptz[1] - '0') * 10 + (ptz[2] - '0');
857 zminutes = (ptz[3] - '0') * 10 + (ptz[4] - '0');
866 tz = bsearch (ptz, TimeZones, sizeof TimeZones / sizeof (struct tz_t),
867 sizeof (struct tz_t),
868 (int (*)(const void *, const void *)) ascii_strcasecmp
869 /* This is safe to do: A pointer to a struct equals
870 * a pointer to its first element*/ );
874 zminutes = tz->zminutes;
875 zoccident = tz->zoccident;
878 /* ad hoc support for the European MET (now officially CET) TZ */
879 if (ascii_strcasecmp (t, "MET") == 0) {
880 if ((t = strtok (NULL, " \t")) != NULL) {
881 if (!ascii_strcasecmp (t, "DST"))
886 tz_offset = zhours * 3600 + zminutes * 60;
888 tz_offset = -tz_offset;
895 if (count < 4) { /* don't check for missing timezone */
896 debug_print (1, ("error parsing date format, using received time\n"));
902 h->zminutes = zminutes;
903 h->zoccident = zoccident;
906 return (mutt_mktime (&tm, 0) + tz_offset);
909 /* extract the first substring that looks like a message-id */
910 static char *extract_message_id (const char *s)
916 if ((s = strchr (s, '<')) == NULL || (p = strchr (s, '>')) == NULL)
918 l = (size_t) (p - s) + 1;
919 r = mem_malloc (l + 1);
925 void mutt_parse_mime_message (CONTEXT * ctx, HEADER * cur)
929 if (cur->content->type != TYPEMESSAGE
930 && cur->content->type != TYPEMULTIPART)
931 return; /* nothing to do */
933 if (cur->content->parts)
934 return; /* The message was parsed earlier. */
936 if ((msg = mx_open_message (ctx, cur->msgno))) {
937 mutt_parse_part (msg->fp, cur->content);
940 cur->security = crypt_query (cur->content);
942 mx_close_message (&msg);
946 int mutt_parse_rfc822_line (ENVELOPE * e, HEADER * hdr, char *line, char *p,
947 short user_hdrs, short weed, short do_2047,
956 switch (ascii_tolower (line[0])) {
958 if (ascii_strcasecmp (line + 1, "pparently-to") == 0) {
959 e->to = rfc822_parse_adrlist (e->to, p);
962 else if (ascii_strcasecmp (line + 1, "pparently-from") == 0) {
963 e->from = rfc822_parse_adrlist (e->from, p);
969 if (ascii_strcasecmp (line + 1, "cc") == 0) {
970 e->bcc = rfc822_parse_adrlist (e->bcc, p);
976 if (ascii_strcasecmp (line + 1, "c") == 0) {
977 e->cc = rfc822_parse_adrlist (e->cc, p);
980 else if (ascii_strncasecmp (line + 1, "ontent-", 7) == 0) {
981 if (ascii_strcasecmp (line + 8, "type") == 0) {
983 mutt_parse_content_type (p, hdr->content);
986 else if (ascii_strcasecmp (line + 8, "transfer-encoding") == 0) {
988 hdr->content->encoding = mutt_check_encoding (p);
991 else if (ascii_strcasecmp (line + 8, "length") == 0) {
993 if ((hdr->content->length = atoi (p)) < 0)
994 hdr->content->length = -1;
998 else if (ascii_strcasecmp (line + 8, "description") == 0) {
1000 str_replace (&hdr->content->description, p);
1001 rfc2047_decode (&hdr->content->description);
1005 else if (ascii_strcasecmp (line + 8, "disposition") == 0) {
1007 parse_content_disposition (p, hdr->content);
1014 if (!ascii_strcasecmp ("ate", line + 1)) {
1015 str_replace (&e->date, p);
1017 hdr->date_sent = mutt_parse_date (p, hdr);
1023 if (!ascii_strcasecmp ("xpires", line + 1) &&
1024 hdr && mutt_parse_date (p, NULL) < time (NULL))
1029 if (!ascii_strcasecmp ("rom", line + 1)) {
1030 e->from = rfc822_parse_adrlist (e->from, p);
1031 /* don't leave from info NULL if there's an invalid address (or
1032 * whatever) in From: field; mutt would just display it as empty
1033 * and mark mail/(esp.) news article as your own. aaargh! this
1034 * bothered me for _years_ */
1036 e->from = rfc822_new_address ();
1037 e->from->personal = str_dup (p);
1042 else if (!str_casecmp (line + 1, "ollowup-to")) {
1043 if (!e->followup_to) {
1044 str_skip_trailws (p);
1045 e->followup_to = str_dup (str_skip_initws (p));
1053 if (!ascii_strcasecmp (line + 1, "n-reply-to")) {
1054 mutt_free_list (&e->in_reply_to);
1055 e->in_reply_to = mutt_parse_references (p, 1);
1061 if (!ascii_strcasecmp (line + 1, "ines")) {
1063 hdr->lines = atoi (p);
1066 * HACK - mutt has, for a very short time, produced negative
1067 * Lines header values. Ignore them.
1075 else if (!ascii_strcasecmp (line + 1, "ist-Post")) {
1076 /* RFC 2369. FIXME: We should ignore whitespace, but don't. */
1077 if (strncmp (p, "NO", 2)) {
1080 for (beg = strchr (p, '<'); beg; beg = strchr (end, ',')) {
1082 if (!(end = strchr (beg, '>')))
1085 /* Take the first mailto URL */
1086 if (url_check_scheme (beg) == U_MAILTO) {
1087 mem_free (&e->list_post);
1088 e->list_post = str_substrdup (beg, end);
1098 if (!ascii_strcasecmp (line + 1, "ime-version")) {
1103 else if (!ascii_strcasecmp (line + 1, "essage-id")) {
1104 /* We add a new "Message-Id:" when building a message */
1105 mem_free (&e->message_id);
1106 e->message_id = extract_message_id (p);
1109 else if (!ascii_strncasecmp (line + 1, "ail-", 4)) {
1110 if (!ascii_strcasecmp (line + 5, "reply-to")) {
1111 /* override the Reply-To: field */
1112 rfc822_free_address (&e->reply_to);
1113 e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
1116 else if (!ascii_strcasecmp (line + 5, "followup-to")) {
1117 e->mail_followup_to = rfc822_parse_adrlist (e->mail_followup_to, p);
1125 if (!str_casecmp (line + 1, "ewsgroups")) {
1126 mem_free (&e->newsgroups);
1127 str_skip_trailws (p);
1128 e->newsgroups = str_dup (str_skip_initws (p));
1135 /* field `Organization:' saves only for pager! */
1136 if (!str_casecmp (line + 1, "rganization")) {
1137 if (!e->organization && str_casecmp (p, "unknown"))
1138 e->organization = str_dup (p);
1143 if (!ascii_strcasecmp (line + 1, "eferences")) {
1144 mutt_free_list (&e->references);
1145 e->references = mutt_parse_references (p, 0);
1148 else if (!ascii_strcasecmp (line + 1, "eply-to")) {
1149 e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
1152 else if (!ascii_strcasecmp (line + 1, "eturn-path")) {
1153 e->return_path = rfc822_parse_adrlist (e->return_path, p);
1156 else if (!ascii_strcasecmp (line + 1, "eceived")) {
1157 if (hdr && !hdr->received) {
1158 char *d = strchr (p, ';');
1161 hdr->received = mutt_parse_date (d + 1, NULL);
1167 if (!ascii_strcasecmp (line + 1, "ubject")) {
1169 e->subject = str_dup (p);
1172 else if (!ascii_strcasecmp (line + 1, "ender")) {
1173 e->sender = rfc822_parse_adrlist (e->sender, p);
1176 else if (!ascii_strcasecmp (line + 1, "tatus")) {
1195 else if ((!ascii_strcasecmp ("upersedes", line + 1) ||
1196 !ascii_strcasecmp ("upercedes", line + 1)) && hdr)
1197 e->supersedes = str_dup (p);
1201 if (ascii_strcasecmp (line + 1, "o") == 0) {
1202 e->to = rfc822_parse_adrlist (e->to, p);
1208 if (ascii_strcasecmp (line + 1, "-status") == 0) {
1229 else if (ascii_strcasecmp (line + 1, "-label") == 0) {
1230 e->x_label = str_dup (p);
1234 else if (!str_casecmp (line + 1, "-comment-to")) {
1235 if (!e->x_comment_to)
1236 e->x_comment_to = str_dup (p);
1239 else if (!str_casecmp (line + 1, "ref")) {
1241 e->xref = str_dup (p);
1250 /* Keep track of the user-defined headers */
1251 if (!matched && user_hdrs) {
1252 /* restore the original line */
1253 line[str_len (line)] = ':';
1255 if (weed && option (OPTWEED) && mutt_matches_ignore (line, Ignore)
1256 && !mutt_matches_ignore (line, UnIgnore))
1260 last->next = mutt_new_list ();
1264 last = e->userhdrs = mutt_new_list ();
1265 last->data = str_dup (line);
1267 rfc2047_decode (&last->data);
1277 /* mutt_read_rfc822_header() -- parses a RFC822 header
1281 * f stream to read from
1283 * hdr header structure of current message (optional).
1285 * user_hdrs If set, store user headers. Used for recall-message and
1288 * weed If this parameter is set and the user has activated the
1289 * $weed option, honor the header weed list for user headers.
1290 * Used for recall-message.
1292 * Returns: newly allocated envelope structure. You should free it by
1293 * mutt_free_envelope() when envelope stay unneeded.
1295 ENVELOPE *mutt_read_rfc822_header (FILE * f, HEADER * hdr, short user_hdrs,
1298 ENVELOPE *e = mutt_new_envelope ();
1300 char *line = mem_malloc (LONG_STRING);
1304 size_t linelen = LONG_STRING;
1305 char buf[LONG_STRING + 1];
1308 if (hdr->content == NULL) {
1309 hdr->content = mutt_new_body ();
1311 /* set the defaults from RFC1521 */
1312 hdr->content->type = TYPETEXT;
1313 hdr->content->subtype = str_dup ("plain");
1314 hdr->content->encoding = ENC7BIT;
1315 hdr->content->length = -1;
1317 /* RFC 2183 says this is arbitrary */
1318 hdr->content->disposition = DISPINLINE;
1322 while ((loc = ftell (f)),
1323 *(line = mutt_read_rfc822_line (f, line, &linelen)) != 0) {
1326 if ((p = strpbrk (line, ": \t")) == NULL || *p != ':') {
1327 char return_path[LONG_STRING];
1330 /* some bogus MTAs will quote the original "From " line */
1331 if (str_ncmp (">From ", line, 6) == 0)
1332 continue; /* just ignore */
1333 else if (is_from (line, return_path, sizeof (return_path), &t)) {
1334 /* MH somtimes has the From_ line in the middle of the header! */
1335 if (hdr && !hdr->received)
1336 hdr->received = t - mutt_local_tz (t);
1341 break; /* end of header */
1346 if (mutt_match_spam_list (line, SpamList, buf, sizeof (buf))) {
1347 if (!rx_list_match (NoSpamList, line)) {
1349 /* if spam tag already exists, figure out how to amend it */
1350 if (e->spam && *buf) {
1351 /* If SpamSep defined, append with separator */
1353 mutt_buffer_addstr (e->spam, SpamSep);
1354 mutt_buffer_addstr (e->spam, buf);
1357 /* else overwrite */
1359 e->spam->dptr = e->spam->data;
1360 *e->spam->dptr = '\0';
1361 mutt_buffer_addstr (e->spam, buf);
1365 /* spam tag is new, and match expr is non-empty; copy */
1366 else if (!e->spam && *buf) {
1367 e->spam = mutt_buffer_from (NULL, buf);
1370 /* match expr is empty; plug in null string if no existing tag */
1371 else if (!e->spam) {
1372 e->spam = mutt_buffer_from (NULL, "");
1375 if (e->spam && e->spam->data)
1376 debug_print (5, ("spam = %s\n", e->spam->data));
1384 continue; /* skip empty header fields */
1387 mutt_parse_rfc822_line (e, hdr, line, p, user_hdrs, weed, 1, &last);
1394 hdr->content->hdr_offset = hdr->offset;
1395 hdr->content->offset = ftell (f);
1396 rfc2047_decode_envelope (e);
1397 /* check for missing or invalid date */
1398 if (hdr->date_sent <= 0) {
1399 debug_print (1, ("no date found, using received "
1400 "time from msg separator\n"));
1401 hdr->date_sent = hdr->received;
1408 ADDRESS *mutt_parse_adrlist (ADDRESS * p, const char *s)
1412 /* check for a simple whitespace separated list of addresses */
1413 if ((q = strpbrk (s, "\"<>():;,\\")) == NULL) {
1414 char tmp[HUGE_STRING];
1417 strfcpy (tmp, s, sizeof (tmp));
1419 while ((r = strtok (r, " \t")) != NULL) {
1420 p = rfc822_parse_adrlist (p, r);
1425 p = rfc822_parse_adrlist (p, s);