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/str.h>
16 #include <lib-lib/ascii.h>
17 #include <lib-lib/macros.h>
18 #include <lib-lib/buffer.h>
20 #include <lib-mime/mime.h>
24 #include "recvattach.h"
27 #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 += m_strlen(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 = vskipspaces(p + 1); /* skip over the = */
203 for (i = 0; *s && i < sizeof (buffer) - 1; i++, s++) {
204 if (!option (OPTSTRICTMIME)) {
205 /* As iso-2022-* has a characer of '"' with non-ascii state,
207 if (*s == 0x1b && i < sizeof (buffer) - 2) {
208 if (s[1] == '(' && (s[2] == 'B' || s[2] == 'J'))
214 if (state_ascii && *s == '"')
217 /* Quote the next character */
227 s++; /* skip over the " */
230 for (i = 0; *s && *s != ' ' && *s != ';' && i < sizeof (buffer) - 1;
236 new->value = m_strdup(buffer);
238 debug_print (2, ("`%s' = `%s'\n", new->attribute ? new->attribute : "",
239 new->value ? new->value : ""));
241 /* Add this parameter to the list */
250 debug_print (1, ("parameter with no value: %s\n", s));
254 /* Find the next parameter */
255 if (*s != ';' && (s = strchr (s, ';')) == NULL)
256 break; /* no more parameters */
259 /* Move past any leading whitespace */
260 s = vskipspaces(s + 1);
262 while (*s == ';'); /* skip empty parameters */
267 rfc2231_decode_parameters (&head);
271 int mutt_check_mime_type (const char *s)
273 if (ascii_strcasecmp ("text", s) == 0)
275 else if (ascii_strcasecmp ("multipart", s) == 0)
276 return TYPEMULTIPART;
277 #ifdef SUN_ATTACHMENT
278 else if (ascii_strcasecmp ("x-sun-attachment", s) == 0)
279 return TYPEMULTIPART;
281 else if (ascii_strcasecmp ("application", s) == 0)
282 return TYPEAPPLICATION;
283 else if (ascii_strcasecmp ("message", s) == 0)
285 else if (ascii_strcasecmp ("image", s) == 0)
287 else if (ascii_strcasecmp ("audio", s) == 0)
289 else if (ascii_strcasecmp ("video", s) == 0)
291 else if (ascii_strcasecmp ("model", s) == 0)
293 else if (ascii_strcasecmp ("*", s) == 0)
295 else if (ascii_strcasecmp (".*", s) == 0)
301 void mutt_parse_content_type (char *s, BODY * ct)
306 p_delete(&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 = m_strdup(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 = m_strdup(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 = m_strdup("x-sun-attachment");
347 if (ct->type == TYPEOTHER) {
348 ct->xtype = m_strdup(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 = m_strdup("plain");
357 else if (ct->type == TYPEAUDIO)
358 ct->subtype = m_strdup("basic");
359 else if (ct->type == TYPEMESSAGE)
360 ct->subtype = m_strdup("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 = m_strdup(buffer);
369 ct->subtype = m_strdup("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) {
396 s = vskipspaces(s + 1);
397 if ((s = mutt_get_parameter("filename",
398 (parms = parse_parameters (s)))) != 0)
399 str_replace (&ct->filename, s);
400 if ((s = mutt_get_parameter ("name", parms)) != 0)
401 ct->form_name = m_strdup(s);
402 mutt_free_parameter (&parms);
407 * fp stream to read from
409 * digest 1 if reading subparts of a multipart/digest, 0
413 BODY *mutt_read_mime_header (FILE * fp, int digest)
415 BODY *p = mutt_new_body ();
417 char *line = p_new(char, LONG_STRING);
418 size_t linelen = LONG_STRING;
420 p->hdr_offset = ftello (fp);
422 p->encoding = ENC7BIT; /* default from RFC1521 */
423 p->type = digest ? TYPEMESSAGE : TYPETEXT;
424 p->disposition = DISPINLINE;
426 while (*(line = mutt_read_rfc822_line (fp, line, &linelen)) != 0) {
427 /* Find the value of the current header */
428 if ((c = strchr (line, ':'))) {
432 debug_print (1, ("skipping empty header field: %s\n", line));
437 debug_print (1, ("bogus MIME header: %s\n", line));
441 if (!ascii_strncasecmp ("content-", line, 8)) {
442 if (!ascii_strcasecmp ("type", line + 8))
443 mutt_parse_content_type (c, p);
444 else if (!ascii_strcasecmp ("transfer-encoding", line + 8))
445 p->encoding = mutt_check_encoding (c);
446 else if (!ascii_strcasecmp ("disposition", line + 8))
447 parse_content_disposition (c, p);
448 else if (!ascii_strcasecmp ("description", line + 8)) {
449 str_replace (&p->description, c);
450 rfc2047_decode (&p->description);
453 #ifdef SUN_ATTACHMENT
454 else if (!ascii_strncasecmp ("x-sun-", line, 6)) {
455 if (!ascii_strcasecmp ("data-type", line + 6))
456 mutt_parse_content_type (c, p);
457 else if (!ascii_strcasecmp ("encoding-info", line + 6))
458 p->encoding = mutt_check_encoding (c);
459 else if (!ascii_strcasecmp ("content-lines", line + 6))
460 mutt_set_parameter ("content-lines", c, &(p->parameter));
461 else if (!ascii_strcasecmp ("data-description", line + 6)) {
462 str_replace (&p->description, c);
463 rfc2047_decode (&p->description);
468 p->offset = ftello (fp); /* Mark the start of the real data */
469 if (p->type == TYPETEXT && !p->subtype)
470 p->subtype = m_strdup("plain");
471 else if (p->type == TYPEMESSAGE && !p->subtype)
472 p->subtype = m_strdup("rfc822");
479 void mutt_parse_part (FILE * fp, BODY * b)
485 #ifdef SUN_ATTACHMENT
486 if (!ascii_strcasecmp (b->subtype, "x-sun-attachment"))
490 bound = mutt_get_parameter ("boundary", b->parameter);
492 fseeko (fp, b->offset, SEEK_SET);
493 b->parts = mutt_parse_multipart (fp, bound,
494 b->offset + b->length,
495 ascii_strcasecmp ("digest",
501 fseeko (fp, b->offset, SEEK_SET);
502 if (mutt_is_message_type (b->type, b->subtype))
503 b->parts = mutt_parse_messageRFC822 (fp, b);
504 else if (ascii_strcasecmp (b->subtype, "external-body") == 0)
505 b->parts = mutt_read_mime_header (fp, 0);
515 /* try to recover from parsing error */
518 str_replace (&b->subtype, "plain");
522 /* parse a MESSAGE/RFC822 body
525 * fp stream to read from
527 * parent structure which contains info about the message/rfc822
530 * NOTE: this assumes that `parent->length' has been set!
533 BODY *mutt_parse_messageRFC822 (FILE * fp, BODY * parent)
537 parent->hdr = mutt_new_header ();
538 parent->hdr->offset = ftello (fp);
539 parent->hdr->env = mutt_read_rfc822_header (fp, parent->hdr, 0, 0);
540 msg = parent->hdr->content;
542 /* ignore the length given in the content-length since it could be wrong
543 and we already have the info to calculate the correct length */
544 /* if (msg->length == -1) */
545 msg->length = parent->length - (msg->offset - parent->offset);
547 /* if body of this message is empty, we can end up with a negative length */
551 mutt_parse_part (fp, msg);
555 /* parse a multipart structure
558 * fp stream to read from
560 * boundary body separator
562 * end_off length of the multipart body (used when the final
563 * boundary is missing to avoid reading too far)
565 * digest 1 if reading a multipart/digest, 0 otherwise
568 BODY *mutt_parse_multipart (FILE * fp, const char *boundary, off_t end_off,
571 #ifdef SUN_ATTACHMENT
574 int blen, len, crlf = 0;
575 char buffer[LONG_STRING];
576 BODY *head = 0, *last = 0, *new = 0;
578 int final = 0; /* did we see the ending boundary? */
581 mutt_error _("multipart message has no boundary parameter!");
586 blen = m_strlen(boundary);
587 while (ftello (fp) < end_off && fgets (buffer, LONG_STRING, fp) != NULL) {
588 len = m_strlen(buffer);
590 crlf = (len > 1 && buffer[len - 2] == '\r') ? 1 : 0;
592 if (buffer[0] == '-' && buffer[1] == '-' &&
593 m_strncmp(buffer + 2, boundary, blen) == 0) {
595 last->length = ftello (fp) - last->offset - len - 1 - crlf;
596 if (last->parts && last->parts->length == 0)
597 last->parts->length =
598 ftello (fp) - last->parts->offset - len - 1 - crlf;
599 /* if the body is empty, we can end up with a -1 length */
600 if (last->length < 0)
604 /* Remove any trailing whitespace, up to the length of the boundary */
605 for (i = len - 1; ISSPACE (buffer[i]) && i >= blen + 2; i--)
608 /* Check for the end boundary */
609 if (m_strcmp(buffer + blen + 2, "--") == 0) {
611 break; /* done parsing */
613 else if (buffer[2 + blen] == 0) {
614 new = mutt_read_mime_header (fp, digest);
616 #ifdef SUN_ATTACHMENT
617 if (mutt_get_parameter ("content-lines", new->parameter)) {
619 atoi (mutt_get_parameter ("content-lines", new->parameter));
621 if (ftello (fp) >= end_off
622 || fgets (buffer, LONG_STRING, fp) == NULL)
628 * Consistency checking - catch
629 * bad attachment end boundaries
632 if (new->offset > end_off) {
633 mutt_free_body (&new);
646 /* in case of missing end boundary, set the length to something reasonable */
647 if (last && last->length == 0 && !final)
648 last->length = end_off - last->offset;
650 /* parse recursive MIME parts */
651 for (last = head; last; last = last->next)
652 mutt_parse_part (fp, last);
657 static const char *uncomment_timezone (char *buf, size_t buflen,
664 return tz; /* no need to do anything */
665 tz = vskipspaces(tz + 1);
666 if ((p = strpbrk (tz, " )")) == NULL)
669 if (len > buflen - 1)
671 memcpy (buf, tz, len);
678 unsigned char zhours;
679 unsigned char zminutes;
680 unsigned char zoccident; /* west of UTC? */
683 "aat", 1, 0, 1}, /* Atlantic Africa Time */
685 "adt", 4, 0, 0}, /* Arabia DST */
687 "ast", 3, 0, 0}, /* Arabia */
688 /*{ "ast", 4, 0, 1 }, *//* Atlantic */
690 "bst", 1, 0, 0}, /* British DST */
692 "cat", 1, 0, 0}, /* Central Africa */
695 "cest", 2, 0, 0}, /* Central Europe DST */
697 "cet", 1, 0, 0}, /* Central Europe */
700 /*{ "cst", 8, 0, 0 }, *//* China */
701 /*{ "cst", 9, 30, 0 }, *//* Australian Central Standard Time */
703 "eat", 3, 0, 0}, /* East Africa */
706 "eest", 3, 0, 0}, /* Eastern Europe DST */
708 "eet", 2, 0, 0}, /* Eastern Europe */
710 "egst", 0, 0, 0}, /* Eastern Greenland DST */
712 "egt", 1, 0, 1}, /* Eastern Greenland */
716 "gst", 4, 0, 0}, /* Presian Gulf */
718 "hkt", 8, 0, 0}, /* Hong Kong */
720 "ict", 7, 0, 0}, /* Indochina */
722 "idt", 3, 0, 0}, /* Israel DST */
724 "ist", 2, 0, 0}, /* Israel */
725 /*{ "ist", 5, 30, 0 }, *//* India */
727 "jst", 9, 0, 0}, /* Japan */
729 "kst", 9, 0, 0}, /* Korea */
732 "met", 1, 0, 0}, /* this is now officially CET */
734 "msd", 4, 0, 0}, /* Moscow DST */
736 "msk", 3, 0, 0}, /* Moscow */
739 "nzdt", 13, 0, 0}, /* New Zealand DST */
741 "nzst", 12, 0, 0}, /* New Zealand */
745 "sat", 2, 0, 0}, /* South Africa */
747 "smt", 4, 0, 0}, /* Seychelles */
749 "sst", 11, 0, 1}, /* Samoa */
750 /*{ "sst", 8, 0, 0 }, *//* Singapore */
753 "wat", 0, 0, 0}, /* West Africa */
755 "west", 1, 0, 0}, /* Western Europe DST */
757 "wet", 0, 0, 0}, /* Western Europe */
759 "wgst", 2, 0, 1}, /* Western Greenland DST */
761 "wgt", 3, 0, 1}, /* Western Greenland */
763 "wst", 8, 0, 0}, /* Western Australia */
766 /* parses a date string in RFC822 format:
768 * Date: [ weekday , ] day-of-month month year hour:minute:second timezone
770 * This routine assumes that `h' has been initialized to 0. the `timezone'
771 * field is optional, defaulting to +0000 if missing.
773 time_t mutt_parse_date (const char *s, HEADER * h)
785 char tzstr[SHORT_STRING];
786 char scratch[SHORT_STRING];
788 /* Don't modify our argument. Fixed-size buffer is ok here since
789 * the date format imposes a natural limit.
792 m_strcpy(scratch, sizeof(scratch), s);
794 /* kill the day of the week, if it exists. */
795 if ((t = strchr (scratch, ',')))
803 while ((t = strtok (t, " \t")) != NULL) {
805 case 0: /* day of the month */
806 if (!isdigit ((unsigned char) *t))
808 tm.tm_mday = atoi (t);
813 case 1: /* month of the year */
814 if ((i = mutt_check_month (t)) < 0)
820 tm.tm_year = atoi (t);
823 else if (tm.tm_year >= 1900)
827 case 3: /* time of day */
828 if (sscanf (t, "%d:%d:%d", &hour, &min, &sec) == 3);
829 else if (sscanf (t, "%d:%d", &hour, &min) == 2)
832 debug_print (1, ("could not process time format: %s\n", t));
840 case 4: /* timezone */
841 /* sometimes we see things like (MST) or (-0700) so attempt to
842 * compensate by uncommenting the string if non-RFC822 compliant
844 ptz = uncomment_timezone (tzstr, sizeof (tzstr), t);
846 if (*ptz == '+' || *ptz == '-') {
847 if (ptz[1] && ptz[2] && ptz[3] && ptz[4]
848 && isdigit ((unsigned char) ptz[1])
849 && isdigit ((unsigned char) ptz[2])
850 && isdigit ((unsigned char) ptz[3])
851 && isdigit ((unsigned char) ptz[4])) {
852 zhours = (ptz[1] - '0') * 10 + (ptz[2] - '0');
853 zminutes = (ptz[3] - '0') * 10 + (ptz[4] - '0');
862 tz = bsearch (ptz, TimeZones, sizeof TimeZones / sizeof (struct tz_t),
863 sizeof (struct tz_t),
864 (int (*)(const void *, const void *)) ascii_strcasecmp
865 /* This is safe to do: A pointer to a struct equals
866 * a pointer to its first element*/ );
870 zminutes = tz->zminutes;
871 zoccident = tz->zoccident;
874 /* ad hoc support for the European MET (now officially CET) TZ */
875 if (ascii_strcasecmp (t, "MET") == 0) {
876 if ((t = strtok (NULL, " \t")) != NULL) {
877 if (!ascii_strcasecmp (t, "DST"))
882 tz_offset = zhours * 3600 + zminutes * 60;
884 tz_offset = -tz_offset;
891 if (count < 4) { /* don't check for missing timezone */
892 debug_print (1, ("error parsing date format, using received time\n"));
898 h->zminutes = zminutes;
899 h->zoccident = zoccident;
902 return (mutt_mktime (&tm, 0) + tz_offset);
905 /* extract the first substring that looks like a message-id */
906 static char *extract_message_id(const char *s)
910 if ((s = strchr(s, '<')) == NULL || (p = strchr(s, '>')) == NULL)
912 return p_dupstr(s, (p - s) + 1);
915 void mutt_parse_mime_message (CONTEXT * ctx, HEADER * cur)
921 if (cur->content->type != TYPEMESSAGE
922 && cur->content->type != TYPEMULTIPART)
923 break; /* nothing to do */
925 if (cur->content->parts)
926 break; /* The message was parsed earlier. */
928 if ((msg = mx_open_message (ctx, cur->msgno))) {
929 mutt_parse_part (msg->fp, cur->content);
932 cur->security = crypt_query (cur->content);
934 mx_close_message (&msg);
937 mutt_count_body_parts (cur, flags | M_PARTS_RECOUNT);
940 int mutt_parse_rfc822_line (ENVELOPE * e, HEADER * hdr, char *line, char *p,
941 short user_hdrs, short weed, short do_2047,
950 switch (ascii_tolower (line[0])) {
952 if (ascii_strcasecmp (line + 1, "pparently-to") == 0) {
953 e->to = rfc822_parse_adrlist (e->to, p);
956 else if (ascii_strcasecmp (line + 1, "pparently-from") == 0) {
957 e->from = rfc822_parse_adrlist (e->from, p);
963 if (ascii_strcasecmp (line + 1, "cc") == 0) {
964 e->bcc = rfc822_parse_adrlist (e->bcc, p);
970 if (ascii_strcasecmp (line + 1, "c") == 0) {
971 e->cc = rfc822_parse_adrlist (e->cc, p);
974 else if (ascii_strncasecmp (line + 1, "ontent-", 7) == 0) {
975 if (ascii_strcasecmp (line + 8, "type") == 0) {
977 mutt_parse_content_type (p, hdr->content);
980 else if (ascii_strcasecmp (line + 8, "transfer-encoding") == 0) {
982 hdr->content->encoding = mutt_check_encoding (p);
985 else if (ascii_strcasecmp (line + 8, "length") == 0) {
987 if ((hdr->content->length = atoi (p)) < 0)
988 hdr->content->length = -1;
992 else if (ascii_strcasecmp (line + 8, "description") == 0) {
994 str_replace (&hdr->content->description, p);
995 rfc2047_decode (&hdr->content->description);
999 else if (ascii_strcasecmp (line + 8, "disposition") == 0) {
1001 parse_content_disposition (p, hdr->content);
1008 if (!ascii_strcasecmp ("ate", line + 1)) {
1009 str_replace (&e->date, p);
1011 hdr->date_sent = mutt_parse_date (p, hdr);
1017 if (!ascii_strcasecmp ("xpires", line + 1) &&
1018 hdr && mutt_parse_date (p, NULL) < time (NULL))
1023 if (!ascii_strcasecmp ("rom", line + 1)) {
1024 e->from = rfc822_parse_adrlist (e->from, p);
1025 /* don't leave from info NULL if there's an invalid address (or
1026 * whatever) in From: field; mutt would just display it as empty
1027 * and mark mail/(esp.) news article as your own. aaargh! this
1028 * bothered me for _years_ */
1030 e->from = rfc822_new_address ();
1031 e->from->personal = m_strdup(p);
1036 else if (!m_strcasecmp(line + 1, "ollowup-to")) {
1037 if (!e->followup_to) {
1038 str_skip_trailws (p);
1039 e->followup_to = m_strdup(vskipspaces(p));
1047 if (!ascii_strcasecmp (line + 1, "n-reply-to")) {
1048 mutt_free_list (&e->in_reply_to);
1049 e->in_reply_to = mutt_parse_references (p, 1);
1055 if (!ascii_strcasecmp (line + 1, "ines")) {
1057 hdr->lines = atoi (p);
1060 * HACK - mutt has, for a very short time, produced negative
1061 * Lines header values. Ignore them.
1069 else if (!ascii_strcasecmp (line + 1, "ist-Post")) {
1070 /* RFC 2369. FIXME: We should ignore whitespace, but don't. */
1071 if (strncmp (p, "NO", 2)) {
1074 for (beg = strchr (p, '<'); beg; beg = strchr (end, ',')) {
1076 if (!(end = strchr (beg, '>')))
1079 /* Take the first mailto URL */
1080 if (url_check_scheme (beg) == U_MAILTO) {
1081 p_delete(&e->list_post);
1082 e->list_post = str_substrdup (beg, end);
1092 if (!ascii_strcasecmp (line + 1, "ime-version")) {
1097 else if (!ascii_strcasecmp (line + 1, "essage-id")) {
1098 /* We add a new "Message-ID:" when building a message */
1099 p_delete(&e->message_id);
1100 e->message_id = extract_message_id (p);
1103 else if (!ascii_strncasecmp (line + 1, "ail-", 4)) {
1104 if (!ascii_strcasecmp (line + 5, "reply-to")) {
1105 /* override the Reply-To: field */
1106 rfc822_free_address (&e->reply_to);
1107 e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
1110 else if (!ascii_strcasecmp (line + 5, "followup-to")) {
1111 e->mail_followup_to = rfc822_parse_adrlist (e->mail_followup_to, p);
1119 if (!m_strcasecmp(line + 1, "ewsgroups")) {
1120 p_delete(&e->newsgroups);
1121 str_skip_trailws (p);
1122 e->newsgroups = m_strdup(vskipspaces(p));
1129 /* field `Organization:' saves only for pager! */
1130 if (!m_strcasecmp(line + 1, "rganization")) {
1131 if (!e->organization && m_strcasecmp(p, "unknown"))
1132 e->organization = m_strdup(p);
1137 if (!ascii_strcasecmp (line + 1, "eferences")) {
1138 mutt_free_list (&e->references);
1139 e->references = mutt_parse_references (p, 0);
1142 else if (!ascii_strcasecmp (line + 1, "eply-to")) {
1143 e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
1146 else if (!ascii_strcasecmp (line + 1, "eturn-path")) {
1147 e->return_path = rfc822_parse_adrlist (e->return_path, p);
1150 else if (!ascii_strcasecmp (line + 1, "eceived")) {
1151 if (hdr && !hdr->received) {
1152 char *d = strchr (p, ';');
1155 hdr->received = mutt_parse_date (d + 1, NULL);
1161 if (!ascii_strcasecmp (line + 1, "ubject")) {
1163 e->subject = m_strdup(p);
1166 else if (!ascii_strcasecmp (line + 1, "ender")) {
1167 e->sender = rfc822_parse_adrlist (e->sender, p);
1170 else if (!ascii_strcasecmp (line + 1, "tatus")) {
1189 else if ((!ascii_strcasecmp ("upersedes", line + 1) ||
1190 !ascii_strcasecmp ("upercedes", line + 1)) && hdr)
1191 e->supersedes = m_strdup(p);
1195 if (ascii_strcasecmp (line + 1, "o") == 0) {
1196 e->to = rfc822_parse_adrlist (e->to, p);
1202 if (ascii_strcasecmp (line + 1, "-status") == 0) {
1223 else if (ascii_strcasecmp (line + 1, "-label") == 0) {
1224 e->x_label = m_strdup(p);
1228 else if (!m_strcasecmp(line + 1, "-comment-to")) {
1229 if (!e->x_comment_to)
1230 e->x_comment_to = m_strdup(p);
1233 else if (!m_strcasecmp(line + 1, "ref")) {
1235 e->xref = m_strdup(p);
1244 /* Keep track of the user-defined headers */
1245 if (!matched && user_hdrs) {
1246 /* restore the original line */
1247 line[m_strlen(line)] = ':';
1249 if (weed && option (OPTWEED) && mutt_matches_ignore (line, Ignore)
1250 && !mutt_matches_ignore (line, UnIgnore))
1254 last->next = mutt_new_list ();
1258 last = e->userhdrs = mutt_new_list ();
1259 last->data = m_strdup(line);
1261 rfc2047_decode (&last->data);
1271 /* mutt_read_rfc822_header() -- parses a RFC822 header
1275 * f stream to read from
1277 * hdr header structure of current message (optional).
1279 * user_hdrs If set, store user headers. Used for recall-message and
1282 * weed If this parameter is set and the user has activated the
1283 * $weed option, honor the header weed list for user headers.
1284 * Used for recall-message.
1286 * Returns: newly allocated envelope structure. You should free it by
1287 * mutt_free_envelope() when envelope stay unneeded.
1289 ENVELOPE *mutt_read_rfc822_header (FILE * f, HEADER * hdr, short user_hdrs,
1292 ENVELOPE *e = mutt_new_envelope ();
1294 char *line = p_new(char, LONG_STRING);
1298 size_t linelen = LONG_STRING;
1299 char buf[LONG_STRING + 1];
1302 if (hdr->content == NULL) {
1303 hdr->content = mutt_new_body ();
1305 /* set the defaults from RFC1521 */
1306 hdr->content->type = TYPETEXT;
1307 hdr->content->subtype = m_strdup("plain");
1308 hdr->content->encoding = ENC7BIT;
1309 hdr->content->length = -1;
1311 /* RFC 2183 says this is arbitrary */
1312 hdr->content->disposition = DISPINLINE;
1316 while ((loc = ftello (f)),
1317 *(line = mutt_read_rfc822_line (f, line, &linelen)) != 0) {
1320 if ((p = strpbrk (line, ": \t")) == NULL || *p != ':') {
1321 char return_path[LONG_STRING];
1324 /* some bogus MTAs will quote the original "From " line */
1325 if (m_strncmp(">From ", line, 6) == 0)
1326 continue; /* just ignore */
1327 else if (is_from (line, return_path, sizeof (return_path), &t)) {
1328 /* MH somtimes has the From_ line in the middle of the header! */
1329 if (hdr && !hdr->received)
1330 hdr->received = t - mutt_local_tz (t);
1335 break; /* end of header */
1340 if (mutt_match_spam_list (line, SpamList, buf, sizeof (buf))) {
1341 if (!rx_list_match (NoSpamList, line)) {
1343 /* if spam tag already exists, figure out how to amend it */
1344 if (e->spam && *buf) {
1345 /* If SpamSep defined, append with separator */
1347 mutt_buffer_addstr (e->spam, SpamSep);
1348 mutt_buffer_addstr (e->spam, buf);
1351 /* else overwrite */
1353 e->spam->dptr = e->spam->data;
1354 *e->spam->dptr = '\0';
1355 mutt_buffer_addstr (e->spam, buf);
1359 /* spam tag is new, and match expr is non-empty; copy */
1360 else if (!e->spam && *buf) {
1361 e->spam = mutt_buffer_from (NULL, buf);
1364 /* match expr is empty; plug in null string if no existing tag */
1365 else if (!e->spam) {
1366 e->spam = mutt_buffer_from (NULL, "");
1369 if (e->spam && e->spam->data)
1370 debug_print (5, ("spam = %s\n", e->spam->data));
1377 continue; /* skip empty header fields */
1380 mutt_parse_rfc822_line (e, hdr, line, p, user_hdrs, weed, 1, &last);
1387 hdr->content->hdr_offset = hdr->offset;
1388 hdr->content->offset = ftello (f);
1389 rfc2047_decode_envelope (e);
1390 /* check for missing or invalid date */
1391 if (hdr->date_sent <= 0) {
1392 debug_print (1, ("no date found, using received "
1393 "time from msg separator\n"));
1394 hdr->date_sent = hdr->received;
1401 address_t *mutt_parse_adrlist (address_t * p, const char *s)
1405 /* check for a simple whitespace separated list of addresses */
1406 if ((q = strpbrk (s, "\"<>():;,\\")) == NULL) {
1407 char tmp[HUGE_STRING];
1410 m_strcpy(tmp, sizeof(tmp), s);
1412 while ((r = strtok (r, " \t")) != NULL) {
1413 p = rfc822_parse_adrlist (p, r);
1418 p = rfc822_parse_adrlist (p, s);
1424 /* Compares mime types to the ok and except lists */
1425 int count_body_parts_check(LIST **checklist, BODY *b, int dflt) {
1429 /* If list is null, use default behavior. */
1435 for (type = *checklist; type; type = type->next) {
1436 a = (ATTACH_MATCH *)type->data;
1437 debug_print(5, ("cbpc: %s %d/%s ?? %s/%s [%d]... ",
1438 dflt ? "[OK] " : "[EXCL] ",
1439 b->type, b->subtype, a->major, a->minor, a->major_int));
1440 if ((a->major_int == TYPEANY || a->major_int == b->type) &&
1441 !regexec(&a->minor_rx, b->subtype, 0, NULL, 0)) {
1442 debug_print(5, ("yes\n"));
1445 debug_print(5, ("no\n"));
1451 #define AT_COUNT(why) { shallcount = 1; }
1452 #define AT_NOCOUNT(why) { shallcount = 0; }
1454 int count_body_parts (BODY *body, int flags) {
1456 int shallcount, shallrecurse;
1462 for (bp = body; bp != NULL; bp = bp->next) {
1463 /* Initial disposition is to count and not to recurse this part. */
1464 AT_COUNT("default");
1467 debug_print(5, ("bp: desc=\"%s\"; fn=\"%s\", type=\"%d/%s\"\n",
1468 bp->description ? bp->description : ("none"),
1469 bp->filename ? bp->filename :
1470 bp->d_filename ? bp->d_filename : "(none)",
1471 bp->type, bp->subtype ? bp->subtype : "*"));
1473 if (bp->type == TYPEMESSAGE) {
1476 /* If it's an external body pointer, don't recurse it. */
1477 if (!ascii_strcasecmp (bp->subtype, "external-body"))
1480 /* Don't count containers if they're top-level. */
1481 if (flags & M_PARTS_TOPLEVEL)
1482 AT_NOCOUNT("top-level message/*");
1483 } else if (bp->type == TYPEMULTIPART) {
1484 /* Always recurse multiparts, except multipart/alternative. */
1486 if (!m_strcasecmp(bp->subtype, "alternative"))
1489 /* Don't count containers if they're top-level. */
1490 if (flags & M_PARTS_TOPLEVEL)
1491 AT_NOCOUNT("top-level multipart");
1494 if (bp->disposition == DISPINLINE &&
1495 bp->type != TYPEMULTIPART && bp->type != TYPEMESSAGE && bp == body)
1496 AT_NOCOUNT("ignore fundamental inlines");
1498 /* If this body isn't scheduled for enumeration already, don't bother
1499 * profiling it further. */
1502 /* Turn off shallcount if message type is not in ok list,
1503 * or if it is in except list. Check is done separately for
1504 * inlines vs. attachments.
1507 if (bp->disposition == DISPATTACH) {
1508 if (!count_body_parts_check(&AttachAllow, bp, 1))
1509 AT_NOCOUNT("attach not allowed");
1510 if (count_body_parts_check(&AttachExclude, bp, 0))
1511 AT_NOCOUNT("attach excluded");
1513 if (!count_body_parts_check(&InlineAllow, bp, 1))
1514 AT_NOCOUNT("inline not allowed");
1515 if (count_body_parts_check(&InlineExclude, bp, 0))
1516 AT_NOCOUNT("excluded");
1522 bp->attach_qualifies = shallcount ? 1 : 0;
1524 debug_print(5, ("cbp: %p shallcount = %d\n", bp, shallcount));
1527 debug_print(5, ("cbp: %p pre count = %d\n", bp, count));
1528 bp->attach_count = count_body_parts(bp->parts, flags & ~M_PARTS_TOPLEVEL);
1529 count += bp->attach_count;
1530 debug_print(5, ("cbp: %p post count = %d\n", bp, count));
1534 debug_print(5, ("bp: return %d\n", count < 0 ? 0 : count));
1535 return count < 0 ? 0 : count;
1538 int mutt_count_body_parts (HEADER *hdr, int flags) {
1539 if (!option (OPTCOUNTATTACH))
1541 if (hdr->attach_valid && !(flags & M_PARTS_RECOUNT))
1542 return hdr->attach_total;
1544 if (AttachAllow || AttachExclude || InlineAllow || InlineExclude)
1545 hdr->attach_total = count_body_parts(hdr->content, flags | M_PARTS_TOPLEVEL);
1547 hdr->attach_total = 0;
1549 hdr->attach_valid = 1;
1550 return hdr->attach_total;