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.
14 #include <lib-lib/mem.h>
15 #include <lib-lib/macros.h>
21 #include "recvattach.h"
26 #include "mutt_crypt.h"
31 #include "lib/debug.h"
38 /* Reads an arbitrarily long header field, and looks ahead for continuation
39 * lines. ``line'' must point to a dynamically allocated string; it is
40 * increased if more space is required to fit the whole line.
42 char *mutt_read_rfc822_line (FILE * f, char *line, size_t * linelen)
49 if (fgets (buf, *linelen - offset, f) == NULL || /* end of file or */
50 (ISSPACE (*line) && !offset)) { /* end of headers */
55 buf += str_len (buf) - 1;
57 /* we did get a full line. remove trailing space */
58 while (ISSPACE (*buf))
59 *buf-- = 0; /* we cannot come beyond line's beginning because
60 * it begins with a non-space */
62 /* check to see if the next line is a continuation line */
63 if ((ch = fgetc (f)) != ' ' && ch != '\t') {
65 return (line); /* next line is a separate header field or EOH */
68 /* eat tabs and spaces from the beginning of the continuation line */
69 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) {
80 p_realloc(&line, *linelen);
87 LIST *mutt_parse_references (char *s, int in_reply_to)
91 char *o = NULL, *new, *at;
93 while ((s = strtok (s, " \t;")) != NULL) {
95 * some mail clients add other garbage besides message-ids, so do a quick
96 * check to make sure this looks like a valid message-id
97 * some idiotic clients also break their message-ids between lines, deal
98 * with that too (give up if it's more than two lines, though)
105 if (s[n - 1] != '>') {
115 if (s[m - 1] == '>') {
116 new = p_new(char, n + m + 1);
117 strcpy (new, o); /* __STRCPY_CHECKED__ */
118 strcpy (new + n, s); /* __STRCPY_CHECKED__ */
122 /* make sure that this really does look like a message-id.
123 * it should have exactly one @, and if we're looking at
124 * an in-reply-to header, make sure that the part before
125 * the @ has more than eight characters or it's probably
128 if (!(at = strchr (new, '@')) || strchr (at + 1, '@')
129 || (in_reply_to && at - new <= 8))
145 int mutt_check_encoding (const char *c)
147 if (ascii_strncasecmp ("7bit", c, sizeof ("7bit") - 1) == 0)
149 else if (ascii_strncasecmp ("8bit", c, sizeof ("8bit") - 1) == 0)
151 else if (ascii_strncasecmp ("binary", c, sizeof ("binary") - 1) == 0)
154 if (ascii_strncasecmp
155 ("quoted-printable", c, sizeof ("quoted-printable") - 1) == 0)
156 return (ENCQUOTEDPRINTABLE);
157 else if (ascii_strncasecmp ("base64", c, sizeof ("base64") - 1) == 0)
159 else if (ascii_strncasecmp ("x-uuencode", c, sizeof ("x-uuencode") - 1) ==
161 return (ENCUUENCODED);
162 #ifdef SUN_ATTACHMENT
163 else if (ascii_strncasecmp ("uuencode", c, sizeof ("uuencode") - 1) == 0)
164 return (ENCUUENCODED);
170 static PARAMETER *parse_parameters (const char *s)
172 PARAMETER *head = 0, *cur = 0, *new;
173 char buffer[LONG_STRING];
177 debug_print (2, ("`%s'\n", s));
180 if ((p = strpbrk (s, "=;")) == NULL) {
181 debug_print (1, ("malformed parameter: %s\n", s));
185 /* if we hit a ; now the parameter has no value, just skip it */
189 new = mutt_new_parameter ();
191 new->attribute = p_dupstr(s, i);
193 /* remove whitespace from the end of the attribute name */
194 while (ISSPACE (new->attribute[--i]))
195 new->attribute[i] = 0;
197 s = p + 1; /* skip over the = */
204 for (i = 0; *s && i < sizeof (buffer) - 1; i++, s++) {
205 if (!option (OPTSTRICTMIME)) {
206 /* As iso-2022-* has a characer of '"' with non-ascii state,
208 if (*s == 0x1b && i < sizeof (buffer) - 2) {
209 if (s[1] == '(' && (s[2] == 'B' || s[2] == 'J'))
215 if (state_ascii && *s == '"')
218 /* Quote the next character */
228 s++; /* skip over the " */
231 for (i = 0; *s && *s != ' ' && *s != ';' && i < sizeof (buffer) - 1;
237 new->value = str_dup (buffer);
239 debug_print (2, ("`%s' = `%s'\n", new->attribute ? new->attribute : "",
240 new->value ? new->value : ""));
242 /* Add this parameter to the list */
251 debug_print (1, ("parameter with no value: %s\n", s));
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)
296 else if (ascii_strcasecmp ("*", s) == 0)
298 else if (ascii_strcasecmp (".*", s) == 0)
304 void mutt_parse_content_type (char *s, BODY * ct)
309 p_delete(&ct->subtype);
310 mutt_free_parameter (&ct->parameter);
312 /* First extract any existing parameters */
313 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
324 ct->filename = str_dup (pc);
326 #ifdef SUN_ATTACHMENT
327 /* this is deep and utter perversion */
328 if ((pc = mutt_get_parameter ("conversions", ct->parameter)) != 0)
329 ct->encoding = mutt_check_encoding (pc);
334 /* Now get the subtype */
335 if ((subtype = strchr (s, '/'))) {
337 for (pc = subtype; *pc && !ISSPACE (*pc) && *pc != ';'; pc++);
339 ct->subtype = str_dup (subtype);
342 /* Finally, get the major type */
343 ct->type = mutt_check_mime_type (s);
345 #ifdef SUN_ATTACHMENT
346 if (ascii_strcasecmp ("x-sun-attachment", s) == 0)
347 ct->subtype = str_dup ("x-sun-attachment");
350 if (ct->type == TYPEOTHER) {
351 ct->xtype = str_dup (s);
354 if (ct->subtype == NULL) {
355 /* Some older non-MIME mailers (i.e., mailtool, elm) have a content-type
356 * field, so we can attempt to convert the type to BODY here.
358 if (ct->type == TYPETEXT)
359 ct->subtype = str_dup ("plain");
360 else if (ct->type == TYPEAUDIO)
361 ct->subtype = str_dup ("basic");
362 else if (ct->type == TYPEMESSAGE)
363 ct->subtype = str_dup ("rfc822");
364 else if (ct->type == TYPEOTHER) {
365 char buffer[SHORT_STRING];
367 ct->type = TYPEAPPLICATION;
368 snprintf (buffer, sizeof (buffer), "x-%s", s);
369 ct->subtype = str_dup (buffer);
372 ct->subtype = str_dup ("x-unknown");
375 /* Default character set for text types. */
376 if (ct->type == TYPETEXT) {
377 if (!(pc = mutt_get_parameter ("charset", ct->parameter)))
378 mutt_set_parameter ("charset", option (OPTSTRICTMIME) ? "us-ascii" :
380 mutt_get_first_charset (AssumedCharset),
386 static void parse_content_disposition (char *s, BODY * ct)
390 if (!ascii_strncasecmp ("inline", s, 6))
391 ct->disposition = DISPINLINE;
392 else if (!ascii_strncasecmp ("form-data", s, 9))
393 ct->disposition = DISPFORMDATA;
395 ct->disposition = DISPATTACH;
397 /* Check to see if a default filename was given */
398 if ((s = strchr (s, ';')) != NULL) {
402 mutt_get_parameter ("filename",
403 (parms = parse_parameters (s)))) != 0)
404 str_replace (&ct->filename, s);
405 if ((s = mutt_get_parameter ("name", parms)) != 0)
406 ct->form_name = str_dup (s);
407 mutt_free_parameter (&parms);
412 * fp stream to read from
414 * digest 1 if reading subparts of a multipart/digest, 0
418 BODY *mutt_read_mime_header (FILE * fp, int digest)
420 BODY *p = mutt_new_body ();
422 char *line = p_new(char, LONG_STRING);
423 size_t linelen = LONG_STRING;
425 p->hdr_offset = ftello (fp);
427 p->encoding = ENC7BIT; /* default from RFC1521 */
428 p->type = digest ? TYPEMESSAGE : TYPETEXT;
429 p->disposition = DISPINLINE;
431 while (*(line = mutt_read_rfc822_line (fp, line, &linelen)) != 0) {
432 /* Find the value of the current header */
433 if ((c = strchr (line, ':'))) {
438 debug_print (1, ("skipping empty header field: %s\n", line));
443 debug_print (1, ("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 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 str_replace (&p->description, c);
469 rfc2047_decode (&p->description);
474 p->offset = ftello (fp); /* Mark the start of the real data */
475 if (p->type == TYPETEXT && !p->subtype)
476 p->subtype = str_dup ("plain");
477 else if (p->type == TYPEMESSAGE && !p->subtype)
478 p->subtype = str_dup ("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 fseeko (fp, b->offset, SEEK_SET);
499 b->parts = mutt_parse_multipart (fp, bound,
500 b->offset + b->length,
501 ascii_strcasecmp ("digest",
507 fseeko (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 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 = ftello (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, off_t 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 = str_len (boundary);
593 while (ftello (fp) < end_off && fgets (buffer, LONG_STRING, fp) != NULL) {
594 len = str_len (buffer);
596 crlf = (len > 1 && buffer[len - 2] == '\r') ? 1 : 0;
598 if (buffer[0] == '-' && buffer[1] == '-' &&
599 str_ncmp (buffer + 2, boundary, blen) == 0) {
601 last->length = ftello (fp) - last->offset - len - 1 - crlf;
602 if (last->parts && last->parts->length == 0)
603 last->parts->length =
604 ftello (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 (str_cmp (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 (ftello (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)
839 debug_print (1, ("could not process time format: %s\n", t));
847 case 4: /* timezone */
848 /* sometimes we see things like (MST) or (-0700) so attempt to
849 * compensate by uncommenting the string if non-RFC822 compliant
851 ptz = uncomment_timezone (tzstr, sizeof (tzstr), t);
853 if (*ptz == '+' || *ptz == '-') {
854 if (ptz[1] && ptz[2] && ptz[3] && ptz[4]
855 && isdigit ((unsigned char) ptz[1])
856 && isdigit ((unsigned char) ptz[2])
857 && isdigit ((unsigned char) ptz[3])
858 && isdigit ((unsigned char) ptz[4])) {
859 zhours = (ptz[1] - '0') * 10 + (ptz[2] - '0');
860 zminutes = (ptz[3] - '0') * 10 + (ptz[4] - '0');
869 tz = bsearch (ptz, TimeZones, sizeof TimeZones / sizeof (struct tz_t),
870 sizeof (struct tz_t),
871 (int (*)(const void *, const void *)) ascii_strcasecmp
872 /* This is safe to do: A pointer to a struct equals
873 * a pointer to its first element*/ );
877 zminutes = tz->zminutes;
878 zoccident = tz->zoccident;
881 /* ad hoc support for the European MET (now officially CET) TZ */
882 if (ascii_strcasecmp (t, "MET") == 0) {
883 if ((t = strtok (NULL, " \t")) != NULL) {
884 if (!ascii_strcasecmp (t, "DST"))
889 tz_offset = zhours * 3600 + zminutes * 60;
891 tz_offset = -tz_offset;
898 if (count < 4) { /* don't check for missing timezone */
899 debug_print (1, ("error parsing date format, using received time\n"));
905 h->zminutes = zminutes;
906 h->zoccident = zoccident;
909 return (mutt_mktime (&tm, 0) + tz_offset);
912 /* extract the first substring that looks like a message-id */
913 static char *extract_message_id(const char *s)
917 if ((s = strchr(s, '<')) == NULL || (p = strchr(s, '>')) == NULL)
919 return p_dupstr(s, (p - s) + 1);
922 void mutt_parse_mime_message (CONTEXT * ctx, HEADER * cur)
928 if (cur->content->type != TYPEMESSAGE
929 && cur->content->type != TYPEMULTIPART)
930 break; /* nothing to do */
932 if (cur->content->parts)
933 break; /* The message was parsed earlier. */
935 if ((msg = mx_open_message (ctx, cur->msgno))) {
936 mutt_parse_part (msg->fp, cur->content);
939 cur->security = crypt_query (cur->content);
941 mx_close_message (&msg);
944 mutt_count_body_parts (cur, flags | M_PARTS_RECOUNT);
947 int mutt_parse_rfc822_line (ENVELOPE * e, HEADER * hdr, char *line, char *p,
948 short user_hdrs, short weed, short do_2047,
957 switch (ascii_tolower (line[0])) {
959 if (ascii_strcasecmp (line + 1, "pparently-to") == 0) {
960 e->to = rfc822_parse_adrlist (e->to, p);
963 else if (ascii_strcasecmp (line + 1, "pparently-from") == 0) {
964 e->from = rfc822_parse_adrlist (e->from, p);
970 if (ascii_strcasecmp (line + 1, "cc") == 0) {
971 e->bcc = rfc822_parse_adrlist (e->bcc, p);
977 if (ascii_strcasecmp (line + 1, "c") == 0) {
978 e->cc = rfc822_parse_adrlist (e->cc, p);
981 else if (ascii_strncasecmp (line + 1, "ontent-", 7) == 0) {
982 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) {
989 hdr->content->encoding = mutt_check_encoding (p);
992 else if (ascii_strcasecmp (line + 8, "length") == 0) {
994 if ((hdr->content->length = atoi (p)) < 0)
995 hdr->content->length = -1;
999 else if (ascii_strcasecmp (line + 8, "description") == 0) {
1001 str_replace (&hdr->content->description, p);
1002 rfc2047_decode (&hdr->content->description);
1006 else if (ascii_strcasecmp (line + 8, "disposition") == 0) {
1008 parse_content_disposition (p, hdr->content);
1015 if (!ascii_strcasecmp ("ate", line + 1)) {
1016 str_replace (&e->date, p);
1018 hdr->date_sent = mutt_parse_date (p, hdr);
1024 if (!ascii_strcasecmp ("xpires", line + 1) &&
1025 hdr && mutt_parse_date (p, NULL) < time (NULL))
1030 if (!ascii_strcasecmp ("rom", line + 1)) {
1031 e->from = rfc822_parse_adrlist (e->from, p);
1032 /* don't leave from info NULL if there's an invalid address (or
1033 * whatever) in From: field; mutt would just display it as empty
1034 * and mark mail/(esp.) news article as your own. aaargh! this
1035 * bothered me for _years_ */
1037 e->from = rfc822_new_address ();
1038 e->from->personal = str_dup (p);
1043 else if (!str_casecmp (line + 1, "ollowup-to")) {
1044 if (!e->followup_to) {
1045 str_skip_trailws (p);
1046 e->followup_to = str_dup (str_skip_initws (p));
1054 if (!ascii_strcasecmp (line + 1, "n-reply-to")) {
1055 mutt_free_list (&e->in_reply_to);
1056 e->in_reply_to = mutt_parse_references (p, 1);
1062 if (!ascii_strcasecmp (line + 1, "ines")) {
1064 hdr->lines = atoi (p);
1067 * HACK - mutt has, for a very short time, produced negative
1068 * Lines header values. Ignore them.
1076 else if (!ascii_strcasecmp (line + 1, "ist-Post")) {
1077 /* RFC 2369. FIXME: We should ignore whitespace, but don't. */
1078 if (strncmp (p, "NO", 2)) {
1081 for (beg = strchr (p, '<'); beg; beg = strchr (end, ',')) {
1083 if (!(end = strchr (beg, '>')))
1086 /* Take the first mailto URL */
1087 if (url_check_scheme (beg) == U_MAILTO) {
1088 p_delete(&e->list_post);
1089 e->list_post = str_substrdup (beg, end);
1099 if (!ascii_strcasecmp (line + 1, "ime-version")) {
1104 else if (!ascii_strcasecmp (line + 1, "essage-id")) {
1105 /* We add a new "Message-ID:" when building a message */
1106 p_delete(&e->message_id);
1107 e->message_id = extract_message_id (p);
1110 else if (!ascii_strncasecmp (line + 1, "ail-", 4)) {
1111 if (!ascii_strcasecmp (line + 5, "reply-to")) {
1112 /* override the Reply-To: field */
1113 rfc822_free_address (&e->reply_to);
1114 e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
1117 else if (!ascii_strcasecmp (line + 5, "followup-to")) {
1118 e->mail_followup_to = rfc822_parse_adrlist (e->mail_followup_to, p);
1126 if (!str_casecmp (line + 1, "ewsgroups")) {
1127 p_delete(&e->newsgroups);
1128 str_skip_trailws (p);
1129 e->newsgroups = str_dup (str_skip_initws (p));
1136 /* field `Organization:' saves only for pager! */
1137 if (!str_casecmp (line + 1, "rganization")) {
1138 if (!e->organization && str_casecmp (p, "unknown"))
1139 e->organization = str_dup (p);
1144 if (!ascii_strcasecmp (line + 1, "eferences")) {
1145 mutt_free_list (&e->references);
1146 e->references = mutt_parse_references (p, 0);
1149 else if (!ascii_strcasecmp (line + 1, "eply-to")) {
1150 e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
1153 else if (!ascii_strcasecmp (line + 1, "eturn-path")) {
1154 e->return_path = rfc822_parse_adrlist (e->return_path, p);
1157 else if (!ascii_strcasecmp (line + 1, "eceived")) {
1158 if (hdr && !hdr->received) {
1159 char *d = strchr (p, ';');
1162 hdr->received = mutt_parse_date (d + 1, NULL);
1168 if (!ascii_strcasecmp (line + 1, "ubject")) {
1170 e->subject = str_dup (p);
1173 else if (!ascii_strcasecmp (line + 1, "ender")) {
1174 e->sender = rfc822_parse_adrlist (e->sender, p);
1177 else if (!ascii_strcasecmp (line + 1, "tatus")) {
1196 else if ((!ascii_strcasecmp ("upersedes", line + 1) ||
1197 !ascii_strcasecmp ("upercedes", line + 1)) && hdr)
1198 e->supersedes = str_dup (p);
1202 if (ascii_strcasecmp (line + 1, "o") == 0) {
1203 e->to = rfc822_parse_adrlist (e->to, p);
1209 if (ascii_strcasecmp (line + 1, "-status") == 0) {
1230 else if (ascii_strcasecmp (line + 1, "-label") == 0) {
1231 e->x_label = str_dup (p);
1235 else if (!str_casecmp (line + 1, "-comment-to")) {
1236 if (!e->x_comment_to)
1237 e->x_comment_to = str_dup (p);
1240 else if (!str_casecmp (line + 1, "ref")) {
1242 e->xref = str_dup (p);
1251 /* Keep track of the user-defined headers */
1252 if (!matched && user_hdrs) {
1253 /* restore the original line */
1254 line[str_len (line)] = ':';
1256 if (weed && option (OPTWEED) && mutt_matches_ignore (line, Ignore)
1257 && !mutt_matches_ignore (line, UnIgnore))
1261 last->next = mutt_new_list ();
1265 last = e->userhdrs = mutt_new_list ();
1266 last->data = str_dup (line);
1268 rfc2047_decode (&last->data);
1278 /* mutt_read_rfc822_header() -- parses a RFC822 header
1282 * f stream to read from
1284 * hdr header structure of current message (optional).
1286 * user_hdrs If set, store user headers. Used for recall-message and
1289 * weed If this parameter is set and the user has activated the
1290 * $weed option, honor the header weed list for user headers.
1291 * Used for recall-message.
1293 * Returns: newly allocated envelope structure. You should free it by
1294 * mutt_free_envelope() when envelope stay unneeded.
1296 ENVELOPE *mutt_read_rfc822_header (FILE * f, HEADER * hdr, short user_hdrs,
1299 ENVELOPE *e = mutt_new_envelope ();
1301 char *line = p_new(char, LONG_STRING);
1305 size_t linelen = LONG_STRING;
1306 char buf[LONG_STRING + 1];
1309 if (hdr->content == NULL) {
1310 hdr->content = mutt_new_body ();
1312 /* set the defaults from RFC1521 */
1313 hdr->content->type = TYPETEXT;
1314 hdr->content->subtype = str_dup ("plain");
1315 hdr->content->encoding = ENC7BIT;
1316 hdr->content->length = -1;
1318 /* RFC 2183 says this is arbitrary */
1319 hdr->content->disposition = DISPINLINE;
1323 while ((loc = ftello (f)),
1324 *(line = mutt_read_rfc822_line (f, line, &linelen)) != 0) {
1327 if ((p = strpbrk (line, ": \t")) == NULL || *p != ':') {
1328 char return_path[LONG_STRING];
1331 /* some bogus MTAs will quote the original "From " line */
1332 if (str_ncmp (">From ", line, 6) == 0)
1333 continue; /* just ignore */
1334 else if (is_from (line, return_path, sizeof (return_path), &t)) {
1335 /* MH somtimes has the From_ line in the middle of the header! */
1336 if (hdr && !hdr->received)
1337 hdr->received = t - mutt_local_tz (t);
1342 break; /* end of header */
1347 if (mutt_match_spam_list (line, SpamList, buf, sizeof (buf))) {
1348 if (!rx_list_match (NoSpamList, line)) {
1350 /* if spam tag already exists, figure out how to amend it */
1351 if (e->spam && *buf) {
1352 /* If SpamSep defined, append with separator */
1354 mutt_buffer_addstr (e->spam, SpamSep);
1355 mutt_buffer_addstr (e->spam, buf);
1358 /* else overwrite */
1360 e->spam->dptr = e->spam->data;
1361 *e->spam->dptr = '\0';
1362 mutt_buffer_addstr (e->spam, buf);
1366 /* spam tag is new, and match expr is non-empty; copy */
1367 else if (!e->spam && *buf) {
1368 e->spam = mutt_buffer_from (NULL, buf);
1371 /* match expr is empty; plug in null string if no existing tag */
1372 else if (!e->spam) {
1373 e->spam = mutt_buffer_from (NULL, "");
1376 if (e->spam && e->spam->data)
1377 debug_print (5, ("spam = %s\n", e->spam->data));
1385 continue; /* skip empty header fields */
1388 mutt_parse_rfc822_line (e, hdr, line, p, user_hdrs, weed, 1, &last);
1395 hdr->content->hdr_offset = hdr->offset;
1396 hdr->content->offset = ftello (f);
1397 rfc2047_decode_envelope (e);
1398 /* check for missing or invalid date */
1399 if (hdr->date_sent <= 0) {
1400 debug_print (1, ("no date found, using received "
1401 "time from msg separator\n"));
1402 hdr->date_sent = hdr->received;
1409 ADDRESS *mutt_parse_adrlist (ADDRESS * p, const char *s)
1413 /* check for a simple whitespace separated list of addresses */
1414 if ((q = strpbrk (s, "\"<>():;,\\")) == NULL) {
1415 char tmp[HUGE_STRING];
1418 strfcpy (tmp, s, sizeof (tmp));
1420 while ((r = strtok (r, " \t")) != NULL) {
1421 p = rfc822_parse_adrlist (p, r);
1426 p = rfc822_parse_adrlist (p, s);
1432 /* Compares mime types to the ok and except lists */
1433 int count_body_parts_check(LIST **checklist, BODY *b, int dflt) {
1437 /* If list is null, use default behavior. */
1443 for (type = *checklist; type; type = type->next) {
1444 a = (ATTACH_MATCH *)type->data;
1445 debug_print(5, ("cbpc: %s %d/%s ?? %s/%s [%d]... ",
1446 dflt ? "[OK] " : "[EXCL] ",
1447 b->type, b->subtype, a->major, a->minor, a->major_int));
1448 if ((a->major_int == TYPEANY || a->major_int == b->type) &&
1449 !regexec(&a->minor_rx, b->subtype, 0, NULL, 0)) {
1450 debug_print(5, ("yes\n"));
1453 debug_print(5, ("no\n"));
1459 #define AT_COUNT(why) { shallcount = 1; }
1460 #define AT_NOCOUNT(why) { shallcount = 0; }
1462 int count_body_parts (BODY *body, int flags) {
1464 int shallcount, shallrecurse;
1470 for (bp = body; bp != NULL; bp = bp->next) {
1471 /* Initial disposition is to count and not to recurse this part. */
1472 AT_COUNT("default");
1475 debug_print(5, ("bp: desc=\"%s\"; fn=\"%s\", type=\"%d/%s\"\n",
1476 bp->description ? bp->description : ("none"),
1477 bp->filename ? bp->filename :
1478 bp->d_filename ? bp->d_filename : "(none)",
1479 bp->type, bp->subtype ? bp->subtype : "*"));
1481 if (bp->type == TYPEMESSAGE) {
1484 /* If it's an external body pointer, don't recurse it. */
1485 if (!ascii_strcasecmp (bp->subtype, "external-body"))
1488 /* Don't count containers if they're top-level. */
1489 if (flags & M_PARTS_TOPLEVEL)
1490 AT_NOCOUNT("top-level message/*");
1491 } else if (bp->type == TYPEMULTIPART) {
1492 /* Always recurse multiparts, except multipart/alternative. */
1494 if (!str_casecmp(bp->subtype, "alternative"))
1497 /* Don't count containers if they're top-level. */
1498 if (flags & M_PARTS_TOPLEVEL)
1499 AT_NOCOUNT("top-level multipart");
1502 if (bp->disposition == DISPINLINE &&
1503 bp->type != TYPEMULTIPART && bp->type != TYPEMESSAGE && bp == body)
1504 AT_NOCOUNT("ignore fundamental inlines");
1506 /* If this body isn't scheduled for enumeration already, don't bother
1507 * profiling it further. */
1510 /* Turn off shallcount if message type is not in ok list,
1511 * or if it is in except list. Check is done separately for
1512 * inlines vs. attachments.
1515 if (bp->disposition == DISPATTACH) {
1516 if (!count_body_parts_check(&AttachAllow, bp, 1))
1517 AT_NOCOUNT("attach not allowed");
1518 if (count_body_parts_check(&AttachExclude, bp, 0))
1519 AT_NOCOUNT("attach excluded");
1521 if (!count_body_parts_check(&InlineAllow, bp, 1))
1522 AT_NOCOUNT("inline not allowed");
1523 if (count_body_parts_check(&InlineExclude, bp, 0))
1524 AT_NOCOUNT("excluded");
1530 bp->attach_qualifies = shallcount ? 1 : 0;
1532 debug_print(5, ("cbp: %p shallcount = %d\n", bp, shallcount));
1535 debug_print(5, ("cbp: %p pre count = %d\n", bp, count));
1536 bp->attach_count = count_body_parts(bp->parts, flags & ~M_PARTS_TOPLEVEL);
1537 count += bp->attach_count;
1538 debug_print(5, ("cbp: %p post count = %d\n", bp, count));
1542 debug_print(5, ("bp: return %d\n", count < 0 ? 0 : count));
1543 return count < 0 ? 0 : count;
1546 int mutt_count_body_parts (HEADER *hdr, int flags) {
1547 if (!option (OPTCOUNTATTACH))
1549 if (hdr->attach_valid && !(flags & M_PARTS_RECOUNT))
1550 return hdr->attach_total;
1552 if (AttachAllow || AttachExclude || InlineAllow || InlineExclude)
1553 hdr->attach_total = count_body_parts(hdr->content, flags | M_PARTS_TOPLEVEL);
1555 hdr->attach_total = 0;
1557 hdr->attach_valid = 1;
1558 return hdr->attach_total;