2 * Copyright notice from original mutt:
3 * Copyright (C) 1996-9 Brandon Long <blong@fiction.net>
4 * Copyright (C) 1999-2002 Brendan Cully <brendan@kublai.com>
6 * This file is part of mutt-ng, see http://www.muttng.org/.
7 * It's licensed under the GNU General Public License,
8 * please see the file GPL in the top level source directory.
11 /* message parsing/updating functions */
13 #include <lib-lib/lib-lib.h>
15 #include <lib-ui/curses.h>
18 #include "imap_private.h"
27 static void flush_buffer (char *buf, size_t * len, CONNECTION * conn);
28 static int msg_fetch_header (CONTEXT * ctx, IMAP_HEADER * h, char *buf,
30 static int msg_has_flag (string_list_t * flag_list, const char *flag);
31 static int msg_parse_fetch (IMAP_HEADER * h, char *s);
32 static char *msg_parse_flags (IMAP_HEADER * h, char *s);
35 static int msg_fetch_header_fetch (CONTEXT * ctx, IMAP_HEADER * h, char *buf,
37 static ssize_t imap_hcache_keylen (const char *fn);
38 #endif /* USE_HCACHE */
41 * Changed to read many headers instead of just one. It will return the
42 * msgno of the last message read. It will return a value other than
43 * msgend if mail comes in while downloading headers (in theory).
45 int imap_read_headers (IMAP_DATA * idata, int msgbegin, int msgend)
48 char buf[LONG_STRING];
51 char tempfile[_POSIX_PATH_MAX];
54 int rc, mfhrc, oldmsgcount;
56 const char *want_headers =
57 "DATE FROM SUBJECT TO CC MESSAGE-ID REFERENCES CONTENT-TYPE CONTENT-DESCRIPTION IN-REPLY-TO REPLY-TO LINES string_list_t-POST X-LABEL";
61 unsigned long *uid_validity = NULL;
63 #endif /* USE_HCACHE */
67 if (mutt_bit_isset (idata->capabilities, IMAP4REV1)) {
68 snprintf (hdrreq, sizeof (hdrreq), "BODY.PEEK[HEADER.FIELDS (%s%s%s)]",
69 want_headers, ImapHeaders ? " " : "",
70 ImapHeaders ? ImapHeaders : "");
72 else if (mutt_bit_isset (idata->capabilities, IMAP4)) {
73 snprintf (hdrreq, sizeof (hdrreq), "RFC822.HEADER.LINES (%s%s%s)",
74 want_headers, ImapHeaders ? " " : "",
75 ImapHeaders ? ImapHeaders : "");
77 else { /* Unable to fetch headers for lower versions */
78 mutt_error _("Unable to fetch headers from this IMAP server version.");
80 mutt_sleep (2); /* pause a moment to let the user see the error */
84 /* instead of downloading all headers and then parsing them, we parse them
86 mutt_mktemp (tempfile);
87 if (!(fp = safe_fopen (tempfile, "w+"))) {
88 mutt_error (_("Could not create temporary file %s"), tempfile);
94 /* make sure context has room to hold the mailbox */
95 while ((msgend) >= idata->ctx->hdrmax)
96 mx_alloc_memory (idata->ctx);
98 oldmsgcount = ctx->msgcount;
99 idata->reopen &= ~IMAP_NEWMAIL_PENDING;
100 idata->newMailCount = 0;
103 if ((hc = mutt_hcache_open (HeaderCache, ctx->path))) {
105 snprintf (buf, sizeof (buf),
106 "FETCH %d:%d (UID FLAGS)", msgbegin + 1, msgend + 1);
107 fetchlast = msgend + 1;
109 imap_cmd_start (idata, buf);
111 for (msgno = msgbegin; msgno <= msgend; msgno++) {
112 if (ReadInc && (!msgno || ((msgno + 1) % ReadInc == 0)))
113 mutt_message (_("Evaluating cache... [%d/%d]"), msgno + 1, msgend + 1);
117 h.data = p_new(IMAP_HEADER_DATA, 1);
121 rc = imap_cmd_step (idata);
122 if (rc != IMAP_CMD_CONTINUE)
126 msg_fetch_header_fetch (idata->ctx, &h, idata->cmd.buf, fp)) == -1)
131 /* make sure we don't get remnants from older larger message headers */
134 sprintf (uid_buf, "/%u", h.data->uid); /* XXX --tg 21:41 04-07-11 */
136 (unsigned long *) mutt_hcache_fetch (hc, uid_buf, &imap_hcache_keylen);
138 if (uid_validity != NULL && *uid_validity == idata->uid_validity) {
139 ctx->hdrs[msgno] = mutt_hcache_restore((unsigned char *) uid_validity, 0);
140 ctx->hdrs[msgno]->index = h.sid - 1;
141 /* messages which have not been expunged are ACTIVE (borrowed from mh
143 ctx->hdrs[msgno]->active = 1;
144 ctx->hdrs[msgno]->read = h.read;
145 ctx->hdrs[msgno]->old = h.old;
146 ctx->hdrs[msgno]->deleted = h.deleted;
147 ctx->hdrs[msgno]->flagged = h.flagged;
148 ctx->hdrs[msgno]->replied = h.replied;
149 ctx->hdrs[msgno]->changed = h.changed;
150 /* ctx->hdrs[msgno]->received is restored from mutt_hcache_restore */
151 ctx->hdrs[msgno]->data = (void *) (h.data);
158 p_delete(&uid_validity);
161 while ((rc != IMAP_CMD_OK) && ((mfhrc == -1) ||
162 ((msgno + 1) >= fetchlast)));
164 if ((mfhrc < -1) || ((rc != IMAP_CMD_CONTINUE) && (rc != IMAP_CMD_OK))) {
165 imap_free_header_data((void *)&h.data);
167 mutt_hcache_close (hc);
172 fetchlast = msgbegin;
174 #endif /* USE_HCACHE */
176 for (msgno = msgbegin; msgno <= msgend; msgno++) {
177 if (ReadInc && (!msgno || ((msgno + 1) % ReadInc == 0)))
178 mutt_message (_("Fetching message headers... [%d/%d]"), msgno + 1,
181 if (ctx->hdrs[msgno])
184 if (msgno + 1 > fetchlast) {
185 fetchlast = msgno + 1;
186 while ((fetchlast <= msgend) && (!ctx->hdrs[fetchlast]))
190 * Make one request for everything. This makes fetching headers an
191 * order of magnitude faster if you have a large mailbox.
193 * If we get more messages while doing this, we make another
194 * request for all the new messages.
196 snprintf (buf, sizeof (buf),
197 "FETCH %d:%d (UID FLAGS INTERNALDATE RFC822.SIZE %s)",
198 msgno + 1, fetchlast, hdrreq);
200 imap_cmd_start (idata, buf);
206 h.data = p_new(IMAP_HEADER_DATA, 1);
208 /* this DO loop does two things:
209 * 1. handles untagged messages, so we can try again on the same msg
210 * 2. fetches the tagged response at the end of the last message.
215 rc = imap_cmd_step (idata);
216 if (rc != IMAP_CMD_CONTINUE)
220 msg_fetch_header (idata->ctx, &h, idata->cmd.buf, fp)) == -1)
225 /* make sure we don't get remnants from older larger message headers */
228 /* update context with message header */
229 ctx->hdrs[msgno] = header_new();
231 ctx->hdrs[msgno]->index = h.sid - 1;
232 /* messages which have not been expunged are ACTIVE (borrowed from mh
234 ctx->hdrs[msgno]->active = 1;
235 ctx->hdrs[msgno]->read = h.read;
236 ctx->hdrs[msgno]->old = h.old;
237 ctx->hdrs[msgno]->deleted = h.deleted;
238 ctx->hdrs[msgno]->flagged = h.flagged;
239 ctx->hdrs[msgno]->replied = h.replied;
240 ctx->hdrs[msgno]->changed = h.changed;
241 ctx->hdrs[msgno]->received = h.received;
242 ctx->hdrs[msgno]->data = (void *) (h.data);
245 /* NOTE: if Date: header is missing, mutt_read_rfc822_header depends
246 * on h.received being set */
247 ctx->hdrs[msgno]->env = mutt_read_rfc822_header (fp, ctx->hdrs[msgno],
249 /* content built as a side-effect of mutt_read_rfc822_header */
250 ctx->hdrs[msgno]->content->length = h.content_length;
253 sprintf (uid_buf, "/%u", h.data->uid);
254 mutt_hcache_store (hc, uid_buf, ctx->hdrs[msgno], idata->uid_validity,
255 &imap_hcache_keylen);
256 #endif /* USE_HCACHE */
260 while ((rc != IMAP_CMD_OK) && ((mfhrc == -1) ||
261 ((msgno + 1) >= fetchlast)));
263 if ((mfhrc < -1) || ((rc != IMAP_CMD_CONTINUE) && (rc != IMAP_CMD_OK))) {
264 imap_free_header_data ((void *)&h.data);
267 mutt_hcache_close (hc);
268 #endif /* USE_HCACHE */
272 /* in case we get new mail while fetching the headers */
273 if (idata->reopen & IMAP_NEWMAIL_PENDING) {
274 msgend = idata->newMailCount - 1;
275 while ((msgend) >= ctx->hdrmax)
276 mx_alloc_memory (ctx);
277 idata->reopen &= ~IMAP_NEWMAIL_PENDING;
278 idata->newMailCount = 0;
283 mutt_hcache_close (hc);
284 #endif /* USE_HCACHE */
288 if (ctx->msgcount > oldmsgcount)
289 mx_update_context (ctx, ctx->msgcount - oldmsgcount);
294 /* move all the headers from extra not present in base into base */
295 static void mutt_merge_envelopes(ENVELOPE* base, ENVELOPE** extra)
297 /* copies each existing element if necessary, and sets the element
298 * to NULL in the source so that envelope_delete doesn't leave us
299 * with dangling pointers. */
300 #define MOVE_ELEM(h) if (!base->h) { base->h = (*extra)->h; (*extra)->h = NULL; }
301 MOVE_ELEM(return_path);
308 MOVE_ELEM(mail_followup_to);
309 MOVE_ELEM(list_post);
310 MOVE_ELEM(message_id);
311 MOVE_ELEM(supersedes);
314 if (!base->refs_changed) {
315 MOVE_ELEM(references);
317 if (!base->irt_changed) {
318 MOVE_ELEM(in_reply_to);
320 /* real_subj is subordinate to subject */
321 if (!base->subject) {
322 base->subject = (*extra)->subject;
323 base->real_subj = (*extra)->real_subj;
324 (*extra)->subject = NULL;
325 (*extra)->real_subj = NULL;
327 /* spam and user headers should never be hashed, and the new envelope may
328 * have better values. Use new versions regardless. */
329 mutt_buffer_free (&base->spam);
330 string_list_wipe(&base->userhdrs);
335 envelope_delete(extra);
338 int imap_fetch_message (MESSAGE * msg, CONTEXT * ctx, int msgno)
343 char buf[LONG_STRING];
344 char path[_POSIX_PATH_MAX];
354 /* Sam's weird courier server returns an OK response even when FETCH
355 * fails. Thanks Sam. */
358 idata = (IMAP_DATA *) ctx->data;
359 h = ctx->hdrs[msgno];
361 /* see if we already have the message in our cache */
362 cacheno = HEADER_DATA (h)->uid % IMAP_CACHE_LEN;
363 cache = &idata->cache[cacheno];
366 /* don't treat cache errors as fatal, just fall back. */
367 if (cache->uid == HEADER_DATA(h)->uid && (msg->fp = fopen (cache->path, "r")))
370 unlink (cache->path);
371 p_delete(&cache->path);
376 mutt_message _("Fetching message...");
378 cache->uid = HEADER_DATA (h)->uid;
380 cache->path = m_strdup(path);
381 if (!(msg->fp = safe_fopen (path, "w+"))) {
382 p_delete(&cache->path);
386 /* mark this header as currently inactive so the command handler won't
387 * also try to update it. HACK until all this code can be moved into the
391 snprintf (buf, sizeof (buf), "UID FETCH %u %s", HEADER_DATA (h)->uid,
392 (mutt_bit_isset (idata->capabilities, IMAP4REV1) ?
393 (option (OPTIMAPPEEK) ? "BODY.PEEK[]" : "BODY[]") : "RFC822"));
395 imap_cmd_start (idata, buf);
397 if ((rc = imap_cmd_step (idata)) != IMAP_CMD_CONTINUE)
401 pc = imap_next_word (pc);
402 pc = imap_next_word (pc);
404 if (!ascii_strncasecmp ("FETCH", pc, 5)) {
406 pc = imap_next_word (pc);
409 if (ascii_strncasecmp ("UID", pc, 3) == 0) {
410 pc = imap_next_word (pc);
412 if (uid != HEADER_DATA(h)->uid)
414 ("The message index is incorrect. Try reopening the mailbox."));
416 else if ((ascii_strncasecmp ("RFC822", pc, 6) == 0) ||
417 (ascii_strncasecmp ("BODY[]", pc, 6) == 0)) {
418 pc = imap_next_word (pc);
419 if (imap_get_literal_count (pc, &bytes) < 0) {
420 imap_error ("imap_fetch_message()", buf);
424 bar.msg = _("Fetching message...");
425 mutt_progress_bar (&bar, 0);
426 if (imap_read_literal (msg->fp, idata, bytes, &bar) < 0)
428 /* pick up trailing line */
429 if ((rc = imap_cmd_step (idata)) != IMAP_CMD_CONTINUE)
435 /* UW-IMAP will provide a FLAGS update here if the FETCH causes a
436 * change (eg from \Unseen to \Seen).
437 * Uncommitted changes in mutt take precedence. If we decide to
438 * incrementally update flags later, this won't stop us syncing */
439 else if ((ascii_strncasecmp ("FLAGS", pc, 5) == 0) && !h->changed) {
440 if ((pc = imap_set_flags (idata, h, pc)) == NULL)
446 while (rc == IMAP_CMD_CONTINUE);
448 /* see comment before command start. */
452 if (ferror (msg->fp)) {
453 mutt_perror (cache->path);
457 if (rc != IMAP_CMD_OK)
460 if (!fetched || !imap_code (idata->cmd.buf))
463 /* Update the header information. Previously, we only downloaded a
464 * portion of the headers, those required for the main display.
467 /* It may be that the Status header indicates a message is read, but the
468 * IMAP server doesn't know the message has been \Seen. So we capture
469 * the server's notion of 'read' and if it differs from the message info
470 * picked up in mutt_read_rfc822_header, we mark the message (and context
471 * changed). Another possiblity: ignore Status on IMAP?*/
473 newenv = mutt_read_rfc822_header (msg->fp, h, 0, 0);
474 mutt_merge_envelopes(h->env, &newenv);
476 /* see above. We want the new status in h->read, so we unset it manually
477 * and let mutt_set_flag set it correctly, updating context. */
478 if (isread != h->read) {
480 mutt_set_flag (ctx, h, M_NEW, isread);
484 fgets (buf, sizeof (buf), msg->fp);
485 while (!feof (msg->fp)) {
487 fgets (buf, sizeof (buf), msg->fp);
490 h->content->length = ftello (msg->fp) - h->content->offset;
492 /* This needs to be done in case this is a multipart message */
493 #if defined(HAVE_PGP) || defined(HAVE_SMIME)
494 h->security = crypt_query (h->content);
503 safe_fclose (&msg->fp);
505 unlink (cache->path);
506 p_delete(&cache->path);
512 int imap_append_message (CONTEXT * ctx, MESSAGE * msg)
516 char buf[LONG_STRING];
517 char mbox[LONG_STRING];
518 char mailbox[LONG_STRING];
526 idata = (IMAP_DATA *) ctx->data;
528 if (imap_parse_path (ctx->path, &mx))
531 imap_fix_path (idata, mx.mbox, mailbox, sizeof (mailbox));
533 if ((fp = fopen (msg->path, "r")) == NULL) {
534 mutt_perror (msg->path);
538 /* currently we set the \Seen flag on all messages, but probably we
539 * should scan the message Status header for flag info. Since we're
540 * already rereading the whole file for length it isn't any more
541 * expensive (it'd be nice if we had the file size passed in already
542 * by the code that writes the file, but that's a lot of changes.
543 * Ideally we'd have a HEADER structure with flag info here... */
544 for (last = EOF, len = 0; (c = fgetc (fp)) != EOF; last = c) {
545 if (c == '\n' && last != '\r')
552 bar.msg = _("Uploading message...");
554 mutt_progress_bar (&bar, 0);
556 imap_munge_mbox_name (mbox, sizeof (mbox), mailbox);
557 snprintf (buf, sizeof (buf), "APPEND %s (%s%s%s%s%s) {%lu}", mbox,
558 msg->flags.read ? "\\Seen" : "",
559 msg->flags.read && (msg->flags.replied
560 || msg->flags.flagged) ? " " : "",
561 msg->flags.replied ? "\\Answered" : "", msg->flags.replied
562 && msg->flags.flagged ? " " : "",
563 msg->flags.flagged ? "\\Flagged" : "", (unsigned long) len);
565 imap_cmd_start (idata, buf);
568 rc = imap_cmd_step (idata);
569 while (rc == IMAP_CMD_CONTINUE);
571 if (rc != IMAP_CMD_RESPOND) {
574 pc = vskipspaces(idata->cmd.buf + SEQLEN);
575 pc = imap_next_word (pc);
576 mutt_error ("%s", pc);
582 for (last = EOF, sent = len = 0; (c = fgetc (fp)) != EOF; last = c) {
583 if (c == '\n' && last != '\r')
588 if (len > sizeof (buf) - 3) {
590 flush_buffer (buf, &len, idata->conn);
591 mutt_progress_bar (&bar, sent);
596 flush_buffer (buf, &len, idata->conn);
598 mutt_socket_write (idata->conn, "\r\n");
602 rc = imap_cmd_step (idata);
603 while (rc == IMAP_CMD_CONTINUE);
605 if (!imap_code (idata->cmd.buf)) {
608 pc = vskipspaces(idata->cmd.buf + SEQLEN);
609 pc = imap_next_word (pc);
610 mutt_error ("%s", pc);
623 /* imap_copy_messages: use server COPY command to copy messages to another
628 * 1: non-fatal error - try fetch/append */
629 int imap_copy_messages (CONTEXT * ctx, HEADER * h, char *dest, int delete)
632 BUFFER cmd, sync_cmd;
634 char mbox[LONG_STRING];
635 char mmbox[LONG_STRING];
639 int err_continue = M_NO;
641 idata = (IMAP_DATA *) ctx->data;
643 if (imap_parse_path (dest, &mx)) {
647 /* check that the save-to folder is in the same account */
648 if (!mutt_account_match (&(CTX_DATA->conn->account), &(mx.account))) {
652 if (h && h->attach_del) {
656 imap_fix_path (idata, mx.mbox, mbox, sizeof (mbox));
658 p_clear(&sync_cmd, 1);
660 mutt_buffer_addstr (&cmd, "UID COPY ");
662 /* Null HEADER* means copy tagged messages */
664 /* if any messages have attachments to delete, fall through to FETCH
665 * and APPEND. TODO: Copy what we can with COPY, fall through for the
667 for (n = 0; n < ctx->msgcount; n++) {
668 if (ctx->hdrs[n]->tagged && ctx->hdrs[n]->attach_del) {
672 if (ctx->hdrs[n]->tagged && ctx->hdrs[n]->active &&
673 ctx->hdrs[n]->changed)
675 rc = imap_sync_message (idata, ctx->hdrs[n], &sync_cmd, &err_continue);
683 rc = imap_make_msg_set (idata, &cmd, M_TAG, 0);
687 mutt_message (_("Copying %d messages to %s..."), rc, mbox);
690 mutt_message (_("Copying message %d to %s..."), h->index + 1, mbox);
691 snprintf (uid, sizeof (uid), "%u", HEADER_DATA (h)->uid);
692 mutt_buffer_addstr (&cmd, uid);
694 if (h->active && h->changed)
696 rc = imap_sync_message (idata, h, &sync_cmd, &err_continue);
704 /* let's get it on */
705 mutt_buffer_addstr (&cmd, " ");
706 imap_munge_mbox_name (mmbox, sizeof (mmbox), mbox);
707 mutt_buffer_addstr (&cmd, mmbox);
709 rc = imap_exec (idata, cmd.data, IMAP_CMD_FAIL_OK);
711 /* bail out if command failed for reasons other than nonexistent target */
712 if (ascii_strncasecmp
713 (imap_get_qualifier (idata->cmd.buf), "[TRYCREATE]", 11)) {
714 imap_error ("imap_copy_messages", idata->cmd.buf);
717 snprintf (mmbox, sizeof (mmbox), _("Create %s?"), mbox);
718 if (option (OPTCONFIRMCREATE) && mutt_yesorno (mmbox, 1) < 1) {
722 if (imap_create_mailbox (idata, mbox) < 0)
726 rc = imap_exec (idata, cmd.data, 0);
729 imap_error ("imap_copy_messages", idata->cmd.buf);
736 for (n = 0; n < ctx->msgcount; n++) {
737 if (ctx->hdrs[n]->tagged) {
738 mutt_set_flag (ctx, ctx->hdrs[n], M_DELETE, 1);
739 mutt_set_flag (ctx, ctx->hdrs[n], M_APPENDED, 1);
740 if (option (OPTDELETEUNTAG))
741 mutt_set_flag (ctx, ctx->hdrs[n], M_TAG, 0);
745 mutt_set_flag (ctx, h, M_DELETE, 1);
746 mutt_set_flag (ctx, h, M_APPENDED, 1);
747 if (option (OPTDELETEUNTAG))
748 mutt_set_flag (ctx, h, M_TAG, 0);
755 p_delete(&sync_cmd.data);
763 p_delete(&sync_cmd.data);
768 /* imap_add_keywords: concatenate custom IMAP tags to list, if they
769 * appear in the folder flags list. Why wouldn't they? */
770 void imap_add_keywords (char *s, HEADER * h, string_list_t * mailbox_flags,
773 string_list_t *keywords;
775 if (!mailbox_flags || !HEADER_DATA (h) || !HEADER_DATA (h)->keywords)
778 keywords = HEADER_DATA (h)->keywords->next;
781 if (msg_has_flag (mailbox_flags, keywords->data)) {
782 m_strcat(s, slen, keywords->data);
783 m_strcat(s, slen, " ");
785 keywords = keywords->next;
789 /* imap_free_header_data: free IMAP_HEADER structure */
790 void imap_free_header_data (void **data)
792 /* this should be safe even if the list wasn't used */
793 string_list_wipe(&(((IMAP_HEADER_DATA *) * data)->keywords));
798 /* imap_set_flags: fill out the message header according to the flags from
799 * the server. Expects a flags line of the form "FLAGS (flag flag ...)" */
800 char *imap_set_flags (IMAP_DATA * idata, HEADER * h, char *s)
802 CONTEXT *ctx = idata->ctx;
804 unsigned char readonly;
807 newh.data = p_new(IMAP_HEADER_DATA, 1);
809 if ((s = msg_parse_flags (&newh, s)) == NULL) {
810 p_delete(&newh.data);
814 /* YAUH (yet another ugly hack): temporarily set context to
815 * read-write even if it's read-only, so *server* updates of
816 * flags can be processed by mutt_set_flag. ctx->changed must
817 * be restored afterwards */
818 readonly = ctx->readonly;
821 mutt_set_flag (ctx, h, M_NEW, !(newh.read || newh.old));
822 mutt_set_flag (ctx, h, M_OLD, newh.old);
823 mutt_set_flag (ctx, h, M_READ, newh.read);
824 mutt_set_flag (ctx, h, M_DELETE, newh.deleted);
825 mutt_set_flag (ctx, h, M_FLAG, newh.flagged);
826 mutt_set_flag (ctx, h, M_REPLIED, newh.replied);
828 /* this message is now definitively *not* changed (mutt_set_flag
829 * marks things changed as a side-effect) */
831 ctx->changed &= ~readonly;
832 ctx->readonly = readonly;
834 string_list_wipe(&(HEADER_DATA (h)->keywords));
835 HEADER_DATA (h)->keywords = newh.data->keywords;
836 p_delete(&newh.data);
842 /* msg_fetch_header: import IMAP FETCH response into an IMAP_HEADER.
843 * Expects string beginning with * n FETCH.
846 * -1 if the string is not a fetch response
847 * -2 if the string is a corrupt fetch response */
848 static int msg_fetch_header (CONTEXT * ctx, IMAP_HEADER * h, char *buf,
853 int rc = -1; /* default now is that string isn't FETCH response */
855 idata = (IMAP_DATA *) ctx->data;
860 /* skip to message number */
861 buf = imap_next_word (buf);
865 buf = imap_next_word (buf);
866 if (ascii_strncasecmp ("FETCH", buf, 5))
869 rc = -2; /* we've got a FETCH response, for better or worse */
870 if (!(buf = strchr (buf, '(')))
874 /* FIXME: current implementation - call msg_parse_fetch - if it returns -2,
875 * read header lines and call it again. Silly. */
876 if (msg_parse_fetch (h, buf) != -2)
879 if (imap_get_literal_count (buf, &bytes) == 0) {
880 imap_read_literal (fp, idata, bytes, NULL);
882 /* we may have other fields of the FETCH _after_ the literal
883 * (eg Domino puts FLAGS here). Nothing wrong with that, either.
884 * This all has to go - we should accept literals and nonliterals
885 * interchangeably at any time. */
886 if (imap_cmd_step (idata) != IMAP_CMD_CONTINUE)
889 if (msg_parse_fetch (h, idata->cmd.buf) == -1)
893 rc = 0; /* success */
895 /* subtract headers from message size - unfortunately only the subset of
896 * headers we've requested. */
897 h->content_length -= bytes;
903 static ssize_t imap_hcache_keylen (const char *fn)
908 /* msg_fetch_header: import IMAP FETCH response into an IMAP_HEADER.
909 * Expects string beginning with * n FETCH.
912 * -1 if the string is not a fetch response
913 * -2 if the string is a corrupt fetch response */
914 static int msg_fetch_header_fetch (CONTEXT * ctx, IMAP_HEADER * h, char *buf,
915 FILE * fp __attribute__ ((unused)))
918 int rc = -1; /* default now is that string isn't FETCH response */
920 idata = (IMAP_DATA *) ctx->data;
925 /* skip to message number */
926 buf = imap_next_word (buf);
930 buf = imap_next_word (buf);
931 if (ascii_strncasecmp ("FETCH", buf, 5))
934 rc = -2; /* we've got a FETCH response, for better or worse */
935 if (!(buf = strchr (buf, '(')))
939 if (msg_parse_fetch (h, buf) < 0) {
943 if (!(buf = strchr (buf, ')')))
949 #endif /* USE_HCACHE */
952 /* msg_has_flag: do a caseless comparison of the flag against a flag list,
953 * return 1 if found or flag list has '\*', 0 otherwise */
954 static int msg_has_flag (string_list_t * flag_list, const char *flag)
959 flag_list = flag_list->next;
961 if (!ascii_strncasecmp (flag_list->data, flag, m_strlen(flag_list->data)))
964 flag_list = flag_list->next;
970 /* msg_parse_fetch: handle headers returned from header fetch */
971 static int msg_parse_fetch (IMAP_HEADER * h, char *s)
973 char tmp[SHORT_STRING];
982 if (ascii_strncasecmp ("FLAGS", s, 5) == 0) {
983 if ((s = msg_parse_flags (h, s)) == NULL)
986 else if (ascii_strncasecmp ("UID", s, 3) == 0) {
987 s = vskipspaces(s + 3);
988 h->data->uid = (unsigned int) atoi (s);
990 s = imap_next_word (s);
992 else if (ascii_strncasecmp ("INTERNALDATE", s, 12) == 0) {
993 s = vskipspaces(s + 12);
999 while (*s && *s != '\"')
1003 s++; /* skip past the trailing " */
1005 h->received = imap_parse_date (tmp);
1007 else if (ascii_strncasecmp ("RFC822.SIZE", s, 11) == 0) {
1008 s = vskipspaces(s + 11);
1010 while (isdigit ((unsigned char) *s))
1013 h->content_length = atoi (tmp);
1015 else if (!ascii_strncasecmp ("BODY", s, 4) ||
1016 !ascii_strncasecmp ("RFC822.HEADER", s, 13)) {
1017 /* handle above, in msg_fetch_header */
1021 s++; /* end of request */
1023 /* got something i don't understand */
1024 imap_error ("msg_parse_fetch", s);
1032 /* msg_parse_flags: read a FLAGS token into an IMAP_HEADER */
1033 static char *msg_parse_flags (IMAP_HEADER * h, char *s)
1037 /* sanity-check string */
1038 if (ascii_strncasecmp ("FLAGS", s, 5) != 0) {
1041 s = vskipspaces(s + 5);
1048 while (*s && *s != ')') {
1049 if (ascii_strncasecmp ("\\deleted", s, 8) == 0) {
1053 else if (ascii_strncasecmp ("\\flagged", s, 8) == 0) {
1057 else if (ascii_strncasecmp ("\\answered", s, 9) == 0) {
1061 else if (ascii_strncasecmp ("\\seen", s, 5) == 0) {
1065 else if (ascii_strncasecmp ("\\recent", s, 5) == 0) {
1070 /* store custom flags as well */
1072 char *flag_word = s;
1074 if (!h->data->keywords)
1075 h->data->keywords = string_item_new();
1077 while (*s && !ISSPACE (*s) && *s != ')')
1081 mutt_add_list (h->data->keywords, flag_word);
1087 /* wrap up, or note bad flags response */
1089 /* if a message is neither seen nor recent, it is OLD. */
1090 if (option (OPTMARKOLD) && !recent && !(h->read))
1101 static void flush_buffer (char *buf, size_t * len, CONNECTION * conn)
1104 mutt_socket_write (conn, buf);