2 * Copyright (C) 1996-2000 Michael R. Elkins <me@mutt.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
20 #include "mutt_regex.h"
25 #include "mutt_crypt.h"
33 /* Reads an arbitrarily long header field, and looks ahead for continuation
34 * lines. ``line'' must point to a dynamically allocated string; it is
35 * increased if more space is required to fit the whole line.
37 static char *read_rfc822_line (FILE *f, char *line, size_t *linelen)
45 if (fgets (buf, *linelen - offset, f) == NULL || /* end of file or */
46 (ISSPACE (*line) && !offset)) /* end of headers */
52 buf += strlen (buf) - 1;
55 /* we did get a full line. remove trailing space */
56 while (ISSPACE (*buf))
57 *buf-- = 0; /* we cannot come beyond line's beginning because
58 * it begins with a non-space */
60 /* check to see if the next line is a continuation line */
61 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')
71 *++buf = ' '; /* string is still terminated because we removed
72 at least one whitespace char above */
77 if (*linelen < offset + STRING)
81 safe_realloc (&line, *linelen);
88 LIST *mutt_parse_references (char *s, int in_reply_to)
92 char *o = NULL, *new, *at;
94 while ((s = strtok (s, " \t;")) != NULL)
97 * some mail clients add other garbage besides message-ids, so do a quick
98 * check to make sure this looks like a valid message-id
99 * some idiotic clients also break their message-ids between lines, deal
100 * with that too (give up if it's more than two lines, though)
115 new = safe_strdup (s);
122 new = safe_malloc (sizeof (char) * (n + m + 1));
123 strcpy (new, o); /* __STRCPY_CHECKED__ */
124 strcpy (new + n, s); /* __STRCPY_CHECKED__ */
129 /* make sure that this really does look like a message-id.
130 * it should have exactly one @, and if we're looking at
131 * an in-reply-to header, make sure that the part before
132 * the @ has more than eight characters or it's probably
135 if (!(at = strchr (new, '@')) || strchr (at + 1, '@')
136 || (in_reply_to && at - new <= 8))
140 t = (LIST *) safe_malloc (sizeof (LIST));
153 int mutt_check_encoding (const char *c)
155 if (ascii_strncasecmp ("7bit", c, sizeof ("7bit")-1) == 0)
157 else if (ascii_strncasecmp ("8bit", c, sizeof ("8bit")-1) == 0)
159 else if (ascii_strncasecmp ("binary", c, sizeof ("binary")-1) == 0)
161 else if (ascii_strncasecmp ("quoted-printable", c, sizeof ("quoted-printable")-1) == 0)
162 return (ENCQUOTEDPRINTABLE);
163 else if (ascii_strncasecmp ("base64", c, sizeof("base64")-1) == 0)
165 else if (ascii_strncasecmp ("x-uuencode", c, sizeof("x-uuencode")-1) == 0)
166 return (ENCUUENCODED);
167 #ifdef SUN_ATTACHMENT
168 else if (ascii_strncasecmp ("uuencode", c, sizeof("uuencode")-1) == 0)
169 return (ENCUUENCODED);
175 static PARAMETER *parse_parameters (const char *s)
177 PARAMETER *head = 0, *cur = 0, *new;
178 char buffer[LONG_STRING];
182 dprint (2, (debugfile, "parse_parameters: `%s'\n", s));
186 if ((p = strpbrk (s, "=;")) == NULL)
188 dprint(1, (debugfile, "parse_parameters: malformed parameter: %s\n", s));
192 /* if we hit a ; now the parameter has no value, just skip it */
197 new = mutt_new_parameter ();
199 new->attribute = safe_malloc (i + 1);
200 memcpy (new->attribute, s, i);
201 new->attribute[i] = 0;
203 /* remove whitespace from the end of the attribute name */
204 while (ISSPACE (new->attribute[--i]))
205 new->attribute[i] = 0;
207 s = p + 1; /* skip over the = */
213 for (i=0; *s && *s != '"' && i < sizeof (buffer) - 1; i++, s++)
217 /* Quote the next character */
227 s++; /* skip over the " */
231 for (i=0; *s && *s != ' ' && *s != ';' && i < sizeof (buffer) - 1; i++, s++)
236 new->value = safe_strdup (buffer);
238 dprint (2, (debugfile, "parse_parameter: `%s' = `%s'\n",
239 new->attribute ? new->attribute : "",
240 new->value ? new->value : ""));
242 /* Add this parameter to the list */
253 dprint (1, (debugfile, "parse_parameters(): parameter with no value: %s\n", s));
257 /* Find the next parameter */
258 if (*s != ';' && (s = strchr (s, ';')) == NULL)
259 break; /* no more parameters */
265 /* Move past any leading whitespace */
268 while (*s == ';'); /* skip empty parameters */
273 rfc2231_decode_parameters (&head);
277 int mutt_check_mime_type (const char *s)
279 if (ascii_strcasecmp ("text", s) == 0)
281 else if (ascii_strcasecmp ("multipart", s) == 0)
282 return TYPEMULTIPART;
283 #ifdef SUN_ATTACHMENT
284 else if (ascii_strcasecmp ("x-sun-attachment", s) == 0)
285 return TYPEMULTIPART;
287 else if (ascii_strcasecmp ("application", s) == 0)
288 return TYPEAPPLICATION;
289 else if (ascii_strcasecmp ("message", s) == 0)
291 else if (ascii_strcasecmp ("image", s) == 0)
293 else if (ascii_strcasecmp ("audio", s) == 0)
295 else if (ascii_strcasecmp ("video", s) == 0)
297 else if (ascii_strcasecmp ("model", s) == 0)
303 void mutt_parse_content_type (char *s, BODY *ct)
309 mutt_free_parameter(&ct->parameter);
311 /* First extract any existing parameters */
312 if ((pc = strchr(s, ';')) != NULL)
315 while (*pc && ISSPACE (*pc))
317 ct->parameter = parse_parameters(pc);
319 /* Some pre-RFC1521 gateways still use the "name=filename" convention,
320 * but if a filename has already been set in the content-disposition,
321 * let that take precedence, and don't set it here */
322 if ((pc = mutt_get_parameter( "name", ct->parameter)) != 0 && !ct->filename)
323 ct->filename = safe_strdup(pc);
325 #ifdef SUN_ATTACHMENT
326 /* this is deep and utter perversion */
327 if ((pc = mutt_get_parameter ("conversions", ct->parameter)) != 0)
328 ct->encoding = mutt_check_encoding (pc);
333 /* Now get the subtype */
334 if ((subtype = strchr(s, '/')))
337 for(pc = subtype; *pc && !ISSPACE(*pc) && *pc != ';'; pc++)
340 ct->subtype = safe_strdup (subtype);
343 /* Finally, get the major type */
344 ct->type = mutt_check_mime_type (s);
346 #ifdef SUN_ATTACHMENT
347 if (ascii_strcasecmp ("x-sun-attachment", s) == 0)
348 ct->subtype = safe_strdup ("x-sun-attachment");
351 if (ct->type == TYPEOTHER)
353 ct->xtype = safe_strdup (s);
356 if (ct->subtype == NULL)
358 /* Some older non-MIME mailers (i.e., mailtool, elm) have a content-type
359 * field, so we can attempt to convert the type to BODY here.
361 if (ct->type == TYPETEXT)
362 ct->subtype = safe_strdup ("plain");
363 else if (ct->type == TYPEAUDIO)
364 ct->subtype = safe_strdup ("basic");
365 else if (ct->type == TYPEMESSAGE)
366 ct->subtype = safe_strdup ("rfc822");
367 else if (ct->type == TYPEOTHER)
369 char buffer[SHORT_STRING];
371 ct->type = TYPEAPPLICATION;
372 snprintf (buffer, sizeof (buffer), "x-%s", s);
373 ct->subtype = safe_strdup (buffer);
376 ct->subtype = safe_strdup ("x-unknown");
379 /* Default character set for text types. */
380 if (ct->type == TYPETEXT)
382 if (!(pc = mutt_get_parameter ("charset", ct->parameter)))
383 mutt_set_parameter ("charset", "us-ascii", &ct->parameter);
388 static void parse_content_disposition (char *s, BODY *ct)
392 if (!ascii_strncasecmp ("inline", s, 6))
393 ct->disposition = DISPINLINE;
394 else if (!ascii_strncasecmp ("form-data", s, 9))
395 ct->disposition = DISPFORMDATA;
397 ct->disposition = DISPATTACH;
399 /* Check to see if a default filename was given */
400 if ((s = strchr (s, ';')) != NULL)
404 if ((s = mutt_get_parameter ("filename", (parms = parse_parameters (s)))) != 0)
405 mutt_str_replace (&ct->filename, s);
406 if ((s = mutt_get_parameter ("name", parms)) != 0)
407 ct->form_name = safe_strdup (s);
408 mutt_free_parameter (&parms);
413 * fp stream to read from
415 * digest 1 if reading subparts of a multipart/digest, 0
419 BODY *mutt_read_mime_header (FILE *fp, int digest)
421 BODY *p = mutt_new_body();
423 char *line = safe_malloc (LONG_STRING);
424 size_t linelen = LONG_STRING;
426 p->hdr_offset = ftell(fp);
428 p->encoding = ENC7BIT; /* default from RFC1521 */
429 p->type = digest ? TYPEMESSAGE : TYPETEXT;
430 p->disposition = DISPINLINE;
432 while (*(line = read_rfc822_line (fp, line, &linelen)) != 0)
434 /* Find the value of the current header */
435 if ((c = strchr (line, ':')))
442 dprint (1, (debugfile, "mutt_read_mime_header(): skipping empty header field: %s\n", line));
448 dprint (1, (debugfile, "read_mime_header: bogus MIME header: %s\n", line));
452 if (!ascii_strncasecmp ("content-", line, 8))
454 if (!ascii_strcasecmp ("type", line + 8))
455 mutt_parse_content_type (c, p);
456 else if (!ascii_strcasecmp ("transfer-encoding", line + 8))
457 p->encoding = mutt_check_encoding (c);
458 else if (!ascii_strcasecmp ("disposition", line + 8))
459 parse_content_disposition (c, p);
460 else if (!ascii_strcasecmp ("description", line + 8))
462 mutt_str_replace (&p->description, c);
463 rfc2047_decode (&p->description);
466 #ifdef SUN_ATTACHMENT
467 else if (!ascii_strncasecmp ("x-sun-", line, 6))
469 if (!ascii_strcasecmp ("data-type", line + 6))
470 mutt_parse_content_type (c, p);
471 else if (!ascii_strcasecmp ("encoding-info", line + 6))
472 p->encoding = mutt_check_encoding (c);
473 else if (!ascii_strcasecmp ("content-lines", line + 6))
474 mutt_set_parameter ("content-lines", c, &(p->parameter));
475 else if (!ascii_strcasecmp ("data-description", line + 6))
477 mutt_str_replace (&p->description, c);
478 rfc2047_decode (&p->description);
483 p->offset = ftell (fp); /* Mark the start of the real data */
484 if (p->type == TYPETEXT && !p->subtype)
485 p->subtype = safe_strdup ("plain");
486 else if (p->type == TYPEMESSAGE && !p->subtype)
487 p->subtype = safe_strdup ("rfc822");
494 void mutt_parse_part (FILE *fp, BODY *b)
501 #ifdef SUN_ATTACHMENT
502 if ( !ascii_strcasecmp (b->subtype, "x-sun-attachment") )
506 bound = mutt_get_parameter ("boundary", b->parameter);
508 fseek (fp, b->offset, SEEK_SET);
509 b->parts = mutt_parse_multipart (fp, bound,
510 b->offset + b->length,
511 ascii_strcasecmp ("digest", b->subtype) == 0);
517 fseek (fp, b->offset, SEEK_SET);
518 if (mutt_is_message_type(b->type, b->subtype))
519 b->parts = mutt_parse_messageRFC822 (fp, b);
520 else if (ascii_strcasecmp (b->subtype, "external-body") == 0)
521 b->parts = mutt_read_mime_header (fp, 0);
531 /* try to recover from parsing error */
535 mutt_str_replace (&b->subtype, "plain");
539 /* parse a MESSAGE/RFC822 body
542 * fp stream to read from
544 * parent structure which contains info about the message/rfc822
547 * NOTE: this assumes that `parent->length' has been set!
550 BODY *mutt_parse_messageRFC822 (FILE *fp, BODY *parent)
554 parent->hdr = mutt_new_header ();
555 parent->hdr->offset = ftell (fp);
556 parent->hdr->env = mutt_read_rfc822_header (fp, parent->hdr, 0, 0);
557 msg = parent->hdr->content;
559 /* ignore the length given in the content-length since it could be wrong
560 and we already have the info to calculate the correct length */
561 /* if (msg->length == -1) */
562 msg->length = parent->length - (msg->offset - parent->offset);
564 /* if body of this message is empty, we can end up with a negative length */
568 mutt_parse_part(fp, msg);
572 /* parse a multipart structure
575 * fp stream to read from
577 * boundary body separator
579 * end_off length of the multipart body (used when the final
580 * boundary is missing to avoid reading too far)
582 * digest 1 if reading a multipart/digest, 0 otherwise
585 BODY *mutt_parse_multipart (FILE *fp, const char *boundary, long end_off, int digest)
587 #ifdef SUN_ATTACHMENT
590 int blen, len, crlf = 0;
591 char buffer[LONG_STRING];
592 BODY *head = 0, *last = 0, *new = 0;
594 int final = 0; /* did we see the ending boundary? */
598 mutt_error _("multipart message has no boundary parameter!");
602 blen = mutt_strlen (boundary);
603 while (ftell (fp) < end_off && fgets (buffer, LONG_STRING, fp) != NULL)
605 len = mutt_strlen (buffer);
607 crlf = (len > 1 && buffer[len - 2] == '\r') ? 1 : 0;
609 if (buffer[0] == '-' && buffer[1] == '-' &&
610 mutt_strncmp (buffer + 2, boundary, blen) == 0)
614 last->length = ftell (fp) - last->offset - len - 1 - crlf;
615 if (last->parts && last->parts->length == 0)
616 last->parts->length = ftell (fp) - last->parts->offset - len - 1 - crlf;
617 /* if the body is empty, we can end up with a -1 length */
618 if (last->length < 0)
622 /* Remove any trailing whitespace, up to the length of the boundary */
623 for (i = len - 1; ISSPACE (buffer[i]) && i >= blen + 2; i--)
626 /* Check for the end boundary */
627 if (mutt_strcmp (buffer + blen + 2, "--") == 0)
630 break; /* done parsing */
632 else if (buffer[2 + blen] == 0)
634 new = mutt_read_mime_header (fp, digest);
636 #ifdef SUN_ATTACHMENT
637 if (mutt_get_parameter ("content-lines", new->parameter)) {
638 for (lines = atoi(mutt_get_parameter ("content-lines", new->parameter));
640 if (ftell (fp) >= end_off || fgets (buffer, LONG_STRING, fp) == NULL)
646 * Consistency checking - catch
647 * bad attachment end boundaries
650 if(new->offset > end_off)
652 mutt_free_body(&new);
666 /* in case of missing end boundary, set the length to something reasonable */
667 if (last && last->length == 0 && !final)
668 last->length = end_off - last->offset;
670 /* parse recursive MIME parts */
671 for(last = head; last; last = last->next)
672 mutt_parse_part(fp, last);
677 static const char *uncomment_timezone (char *buf, size_t buflen, const char *tz)
683 return tz; /* no need to do anything */
686 if ((p = strpbrk (tz, " )")) == NULL)
689 if (len > buflen - 1)
691 memcpy (buf, tz, len);
699 unsigned char zhours;
700 unsigned char zminutes;
701 unsigned char zoccident; /* west of UTC? */
705 { "aat", 1, 0, 1 }, /* Atlantic Africa Time */
706 { "adt", 4, 0, 0 }, /* Arabia DST */
707 { "ast", 3, 0, 0 }, /* Arabia */
708 /*{ "ast", 4, 0, 1 },*/ /* Atlantic */
709 { "bst", 1, 0, 0 }, /* British DST */
710 { "cat", 1, 0, 0 }, /* Central Africa */
712 { "cest", 2, 0, 0 }, /* Central Europe DST */
713 { "cet", 1, 0, 0 }, /* Central Europe */
715 /*{ "cst", 8, 0, 0 },*/ /* China */
716 /*{ "cst", 9, 30, 0 },*/ /* Australian Central Standard Time */
717 { "eat", 3, 0, 0 }, /* East Africa */
719 { "eest", 3, 0, 0 }, /* Eastern Europe DST */
720 { "eet", 2, 0, 0 }, /* Eastern Europe */
721 { "egst", 0, 0, 0 }, /* Eastern Greenland DST */
722 { "egt", 1, 0, 1 }, /* Eastern Greenland */
725 { "gst", 4, 0, 0 }, /* Presian Gulf */
726 { "hkt", 8, 0, 0 }, /* Hong Kong */
727 { "ict", 7, 0, 0 }, /* Indochina */
728 { "idt", 3, 0, 0 }, /* Israel DST */
729 { "ist", 2, 0, 0 }, /* Israel */
730 /*{ "ist", 5, 30, 0 },*/ /* India */
731 { "jst", 9, 0, 0 }, /* Japan */
732 { "kst", 9, 0, 0 }, /* Korea */
734 { "met", 1, 0, 0 }, /* this is now officially CET */
735 { "msd", 4, 0, 0 }, /* Moscow DST */
736 { "msk", 3, 0, 0 }, /* Moscow */
738 { "nzdt", 13, 0, 0 }, /* New Zealand DST */
739 { "nzst", 12, 0, 0 }, /* New Zealand */
742 { "sat", 2, 0, 0 }, /* South Africa */
743 { "smt", 4, 0, 0 }, /* Seychelles */
744 { "sst", 11, 0, 1 }, /* Samoa */
745 /*{ "sst", 8, 0, 0 },*/ /* Singapore */
747 { "wat", 0, 0, 0 }, /* West Africa */
748 { "west", 1, 0, 0 }, /* Western Europe DST */
749 { "wet", 0, 0, 0 }, /* Western Europe */
750 { "wgst", 2, 0, 1 }, /* Western Greenland DST */
751 { "wgt", 3, 0, 1 }, /* Western Greenland */
752 { "wst", 8, 0, 0 }, /* Western Australia */
755 /* parses a date string in RFC822 format:
757 * Date: [ weekday , ] day-of-month month year hour:minute:second timezone
759 * This routine assumes that `h' has been initialized to 0. the `timezone'
760 * field is optional, defaulting to +0000 if missing.
762 time_t mutt_parse_date (const char *s, HEADER *h)
774 char tzstr[SHORT_STRING];
775 char scratch[SHORT_STRING];
777 /* Don't modify our argument. Fixed-size buffer is ok here since
778 * the date format imposes a natural limit.
781 strfcpy (scratch, s, sizeof (scratch));
783 /* kill the day of the week, if it exists. */
784 if ((t = strchr (scratch, ',')))
790 memset (&tm, 0, sizeof (tm));
792 while ((t = strtok (t, " \t")) != NULL)
796 case 0: /* day of the month */
797 if (!isdigit ((unsigned char) *t))
799 tm.tm_mday = atoi (t);
804 case 1: /* month of the year */
805 if ((i = mutt_check_month (t)) < 0)
811 tm.tm_year = atoi (t);
814 else if (tm.tm_year >= 1900)
818 case 3: /* time of day */
819 if (sscanf (t, "%d:%d:%d", &hour, &min, &sec) == 3)
821 else if (sscanf (t, "%d:%d", &hour, &min) == 2)
825 dprint(1, (debugfile, "parse_date: could not process time format: %s\n", t));
833 case 4: /* timezone */
834 /* sometimes we see things like (MST) or (-0700) so attempt to
835 * compensate by uncommenting the string if non-RFC822 compliant
837 ptz = uncomment_timezone (tzstr, sizeof (tzstr), t);
839 if (*ptz == '+' || *ptz == '-')
841 if (ptz[1] && ptz[2] && ptz[3] && ptz[4]
842 && isdigit ((unsigned char) ptz[1]) && isdigit ((unsigned char) ptz[2])
843 && isdigit ((unsigned char) ptz[3]) && isdigit ((unsigned char) ptz[4]))
845 zhours = (ptz[1] - '0') * 10 + (ptz[2] - '0');
846 zminutes = (ptz[3] - '0') * 10 + (ptz[4] - '0');
856 tz = bsearch (ptz, TimeZones, sizeof TimeZones/sizeof (struct tz_t),
857 sizeof (struct tz_t),
858 (int (*)(const void *, const void *)) ascii_strcasecmp
859 /* This is safe to do: A pointer to a struct equals
860 * a pointer to its first element*/);
865 zminutes = tz->zminutes;
866 zoccident = tz->zoccident;
869 /* ad hoc support for the European MET (now officially CET) TZ */
870 if (ascii_strcasecmp (t, "MET") == 0)
872 if ((t = strtok (NULL, " \t")) != NULL)
874 if (!ascii_strcasecmp (t, "DST"))
879 tz_offset = zhours * 3600 + zminutes * 60;
881 tz_offset = -tz_offset;
888 if (count < 4) /* don't check for missing timezone */
890 dprint(1,(debugfile, "parse_date(): error parsing date format, using received time\n"));
897 h->zminutes = zminutes;
898 h->zoccident = zoccident;
901 return (mutt_mktime (&tm, 0) + tz_offset);
904 /* extract the first substring that looks like a message-id */
905 static char *extract_message_id (const char *s)
911 if ((s = strchr (s, '<')) == NULL || (p = strchr (s, '>')) == NULL)
913 l = (size_t)(p - s) + 1;
914 r = safe_malloc (l + 1);
920 void mutt_parse_mime_message (CONTEXT *ctx, HEADER *cur)
924 if (cur->content->type != TYPEMESSAGE && cur->content->type != TYPEMULTIPART)
925 return; /* nothing to do */
927 if (cur->content->parts)
928 return; /* The message was parsed earlier. */
930 if ((msg = mx_open_message (ctx, cur->msgno)))
932 mutt_parse_part (msg->fp, cur->content);
935 cur->security = crypt_query (cur->content);
937 mx_close_message (&msg);
941 int mutt_parse_rfc822_line (ENVELOPE *e, HEADER *hdr, char *line, char *p, short user_hdrs, short weed,
942 short do_2047, LIST **lastp)
950 switch (ascii_tolower (line[0]))
953 if (ascii_strcasecmp (line+1, "pparently-to") == 0)
955 e->to = rfc822_parse_adrlist (e->to, p);
958 else if (ascii_strcasecmp (line+1, "pparently-from") == 0)
960 e->from = rfc822_parse_adrlist (e->from, p);
966 if (ascii_strcasecmp (line+1, "cc") == 0)
968 e->bcc = rfc822_parse_adrlist (e->bcc, p);
974 if (ascii_strcasecmp (line+1, "c") == 0)
976 e->cc = rfc822_parse_adrlist (e->cc, p);
979 else if (ascii_strncasecmp (line + 1, "ontent-", 7) == 0)
981 if (ascii_strcasecmp (line+8, "type") == 0)
984 mutt_parse_content_type (p, hdr->content);
987 else if (ascii_strcasecmp (line+8, "transfer-encoding") == 0)
990 hdr->content->encoding = mutt_check_encoding (p);
993 else if (ascii_strcasecmp (line+8, "length") == 0)
997 if ((hdr->content->length = atoi (p)) < 0)
998 hdr->content->length = -1;
1002 else if (ascii_strcasecmp (line+8, "description") == 0)
1006 mutt_str_replace (&hdr->content->description, p);
1007 rfc2047_decode (&hdr->content->description);
1011 else if (ascii_strcasecmp (line+8, "disposition") == 0)
1014 parse_content_disposition (p, hdr->content);
1021 if (!ascii_strcasecmp ("ate", line + 1))
1023 mutt_str_replace (&e->date, p);
1025 hdr->date_sent = mutt_parse_date (p, hdr);
1031 if (!ascii_strcasecmp ("xpires", line + 1) &&
1032 hdr && mutt_parse_date (p, NULL) < time (NULL))
1037 if (!ascii_strcasecmp ("rom", line + 1))
1039 e->from = rfc822_parse_adrlist (e->from, p);
1043 else if (!mutt_strcasecmp (line+1, "ollowup-to"))
1045 if (!e->followup_to)
1047 mutt_remove_trailing_ws (p);
1048 e->followup_to = safe_strdup (mutt_skip_whitespace (p));
1056 if (!ascii_strcasecmp (line+1, "n-reply-to"))
1058 mutt_free_list (&e->in_reply_to);
1059 e->in_reply_to = mutt_parse_references (p, 1);
1065 if (!ascii_strcasecmp (line + 1, "ines"))
1069 hdr->lines = atoi (p);
1072 * HACK - mutt has, for a very short time, produced negative
1073 * Lines header values. Ignore them.
1081 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, ','))
1090 if (!(end = strchr (beg, '>')))
1093 /* Take the first mailto URL */
1094 if (url_check_scheme (beg) == U_MAILTO)
1096 FREE (&e->list_post);
1097 e->list_post = mutt_substrdup (beg, end);
1107 if (!ascii_strcasecmp (line + 1, "ime-version"))
1113 else if (!ascii_strcasecmp (line + 1, "essage-id"))
1115 /* We add a new "Message-Id:" when building a message */
1116 FREE (&e->message_id);
1117 e->message_id = extract_message_id (p);
1120 else if (!ascii_strncasecmp (line + 1, "ail-", 4))
1122 if (!ascii_strcasecmp (line + 5, "reply-to"))
1124 /* override the Reply-To: field */
1125 rfc822_free_address (&e->reply_to);
1126 e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
1129 else if (!ascii_strcasecmp (line + 5, "followup-to"))
1131 e->mail_followup_to = rfc822_parse_adrlist (e->mail_followup_to, p);
1139 if (!mutt_strcasecmp (line + 1, "ewsgroups"))
1141 FREE (&e->newsgroups);
1142 mutt_remove_trailing_ws (p);
1143 e->newsgroups = safe_strdup (mutt_skip_whitespace (p));
1150 /* field `Organization:' saves only for pager! */
1151 if (!mutt_strcasecmp (line + 1, "rganization"))
1153 if (!e->organization && mutt_strcasecmp (p, "unknown"))
1154 e->organization = safe_strdup (p);
1159 if (!ascii_strcasecmp (line + 1, "eferences"))
1161 mutt_free_list (&e->references);
1162 e->references = mutt_parse_references (p, 0);
1165 else if (!ascii_strcasecmp (line + 1, "eply-to"))
1167 e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
1170 else if (!ascii_strcasecmp (line + 1, "eturn-path"))
1172 e->return_path = rfc822_parse_adrlist (e->return_path, p);
1175 else if (!ascii_strcasecmp (line + 1, "eceived"))
1177 if (hdr && !hdr->received)
1179 char *d = strchr (p, ';');
1182 hdr->received = mutt_parse_date (d + 1, NULL);
1188 if (!ascii_strcasecmp (line + 1, "ubject"))
1191 e->subject = safe_strdup (p);
1194 else if (!ascii_strcasecmp (line + 1, "ender"))
1196 e->sender = rfc822_parse_adrlist (e->sender, p);
1199 else if (!ascii_strcasecmp (line + 1, "tatus"))
1222 else if ((!ascii_strcasecmp ("upersedes", line + 1) ||
1223 !ascii_strcasecmp ("upercedes", line + 1)) && hdr)
1224 e->supersedes = safe_strdup (p);
1228 if (ascii_strcasecmp (line+1, "o") == 0)
1230 e->to = rfc822_parse_adrlist (e->to, p);
1236 if (ascii_strcasecmp (line+1, "-status") == 0)
1261 else if (ascii_strcasecmp (line+1, "-label") == 0)
1263 e->x_label = safe_strdup(p);
1267 else if (!mutt_strcasecmp (line + 1, "-comment-to"))
1269 if (!e->x_comment_to)
1270 e->x_comment_to = safe_strdup (p);
1273 else if (!mutt_strcasecmp (line + 1, "ref"))
1276 e->xref = safe_strdup (p);
1285 /* Keep track of the user-defined headers */
1286 if (!matched && user_hdrs)
1288 /* restore the original line */
1289 line[strlen (line)] = ':';
1291 if (weed && option (OPTWEED) && mutt_matches_ignore (line, Ignore)
1292 && !mutt_matches_ignore (line, UnIgnore))
1297 last->next = mutt_new_list ();
1301 last = e->userhdrs = mutt_new_list ();
1302 last->data = safe_strdup (line);
1304 rfc2047_decode (&last->data);
1314 /* mutt_read_rfc822_header() -- parses a RFC822 header
1318 * f stream to read from
1320 * hdr header structure of current message (optional).
1322 * user_hdrs If set, store user headers. Used for recall-message and
1325 * weed If this parameter is set and the user has activated the
1326 * $weed option, honor the header weed list for user headers.
1327 * Used for recall-message.
1329 * Returns: newly allocated envelope structure. You should free it by
1330 * mutt_free_envelope() when envelope stay unneeded.
1332 ENVELOPE *mutt_read_rfc822_header (FILE *f, HEADER *hdr, short user_hdrs,
1335 ENVELOPE *e = mutt_new_envelope();
1337 char *line = safe_malloc (LONG_STRING);
1341 size_t linelen = LONG_STRING;
1342 char buf[LONG_STRING+1];
1346 if (hdr->content == NULL)
1348 hdr->content = mutt_new_body ();
1350 /* set the defaults from RFC1521 */
1351 hdr->content->type = TYPETEXT;
1352 hdr->content->subtype = safe_strdup ("plain");
1353 hdr->content->encoding = ENC7BIT;
1354 hdr->content->length = -1;
1356 /* RFC 2183 says this is arbitrary */
1357 hdr->content->disposition = DISPINLINE;
1361 while ((loc = ftell (f)),
1362 *(line = read_rfc822_line (f, line, &linelen)) != 0)
1366 if ((p = strpbrk (line, ": \t")) == NULL || *p != ':')
1368 char return_path[LONG_STRING];
1371 /* some bogus MTAs will quote the original "From " line */
1372 if (mutt_strncmp (">From ", line, 6) == 0)
1373 continue; /* just ignore */
1374 else if (is_from (line, return_path, sizeof (return_path), &t))
1376 /* MH somtimes has the From_ line in the middle of the header! */
1377 if (hdr && !hdr->received)
1378 hdr->received = t - mutt_local_tz (t);
1383 break; /* end of header */
1388 if (mutt_match_spam_list(line, SpamList, buf, sizeof(buf)))
1390 if (!mutt_match_rx_list(line, NoSpamList))
1393 /* if spam tag already exists, figure out how to amend it */
1394 if (e->spam && *buf)
1396 /* If SpamSep defined, append with separator */
1399 mutt_buffer_addstr(e->spam, SpamSep);
1400 mutt_buffer_addstr(e->spam, buf);
1403 /* else overwrite */
1406 e->spam->dptr = e->spam->data;
1407 *e->spam->dptr = '\0';
1408 mutt_buffer_addstr(e->spam, buf);
1412 /* spam tag is new, and match expr is non-empty; copy */
1413 else if (!e->spam && *buf)
1415 e->spam = mutt_buffer_from(NULL, buf);
1418 /* match expr is empty; plug in null string if no existing tag */
1421 e->spam = mutt_buffer_from(NULL, "");
1424 if (e->spam && e->spam->data)
1425 dprint(5, (debugfile, "p822: spam = %s\n", e->spam->data));
1433 continue; /* skip empty header fields */
1435 matched = mutt_parse_rfc822_line (e, hdr, line, p, user_hdrs, weed, 1, &last);
1443 hdr->content->hdr_offset = hdr->offset;
1444 hdr->content->offset = ftell (f);
1446 /* do RFC2047 decoding */
1447 rfc2047_decode_adrlist (e->from);
1448 rfc2047_decode_adrlist (e->to);
1449 rfc2047_decode_adrlist (e->cc);
1450 rfc2047_decode_adrlist (e->reply_to);
1451 rfc2047_decode_adrlist (e->mail_followup_to);
1452 rfc2047_decode_adrlist (e->return_path);
1453 rfc2047_decode_adrlist (e->sender);
1457 regmatch_t pmatch[1];
1459 rfc2047_decode (&e->subject);
1461 if (regexec (ReplyRegexp.rx, e->subject, 1, pmatch, 0) == 0)
1462 e->real_subj = e->subject + pmatch[0].rm_eo;
1464 e->real_subj = e->subject;
1467 /* check for missing or invalid date */
1468 if (hdr->date_sent <= 0)
1470 dprint(1,(debugfile,"read_rfc822_header(): no date found, using received time from msg separator\n"));
1471 hdr->date_sent = hdr->received;
1478 ADDRESS *mutt_parse_adrlist (ADDRESS *p, const char *s)
1482 /* check for a simple whitespace separated list of addresses */
1483 if ((q = strpbrk (s, "\"<>():;,\\")) == NULL)
1485 char tmp[HUGE_STRING];
1488 strfcpy (tmp, s, sizeof (tmp));
1490 while ((r = strtok (r, " \t")) != NULL)
1492 p = rfc822_parse_adrlist (p, r);
1497 p = rfc822_parse_adrlist (p, s);