int imap_fetch_message (CONTEXT *ctx, MESSAGE *msg, int msgno)
{
IMAP_DATA* idata;
HEADER* h;
ENVELOPE* newenv;
char buf[LONG_STRING];
char path[_POSIX_PATH_MAX];
char *pc;
long bytes;
progress_t progressbar;
int uid;
int cacheno;
IMAP_CACHE *cache;
int read;
int rc;
/* Sam's weird courier server returns an OK response even when FETCH
* fails. Thanks Sam. */
short fetched = 0;
idata = (IMAP_DATA*) ctx->data;
h = ctx->hdrs[msgno];
if ((msg->fp = msg_cache_get (idata, h)))
{
if (HEADER_DATA(h)->parsed)
return 0;
else
goto parsemsg;
}
/* we still do some caching even if imap_cachedir is unset */
/* see if we already have the message in our cache */
cacheno = HEADER_DATA(h)->uid % IMAP_CACHE_LEN;
cache = &idata->cache[cacheno];
if (cache->path)
{
/* don't treat cache errors as fatal, just fall back. */
if (cache->uid == HEADER_DATA(h)->uid &&
(msg->fp = fopen (cache->path, "r")))
return 0;
else
{
unlink (cache->path);
FREE (&cache->path);
}
}
if (!isendwin())
mutt_message _("Fetching message...");
if (!(msg->fp = msg_cache_put (idata, h)))
{
cache->uid = HEADER_DATA(h)->uid;
mutt_mktemp (path, sizeof (path));
cache->path = safe_strdup (path);
if (!(msg->fp = safe_fopen (path, "w+")))
{
FREE (&cache->path);
return -1;
}
}
/* mark this header as currently inactive so the command handler won't
* also try to update it. HACK until all this code can be moved into the
* command handler */
h->active = 0;
snprintf (buf, sizeof (buf), "UID FETCH %u %s", HEADER_DATA(h)->uid,
(mutt_bit_isset (idata->capabilities, IMAP4REV1) ?
(option (OPTIMAPPEEK) ? "BODY.PEEK[]" : "BODY[]") :
"RFC822"));
imap_cmd_start (idata, buf);
do
{
if ((rc = imap_cmd_step (idata)) != IMAP_CMD_CONTINUE)
break;
pc = idata->buf;
pc = imap_next_word (pc);
pc = imap_next_word (pc);
if (!ascii_strncasecmp ("FETCH", pc, 5))
{
while (*pc)
{
pc = imap_next_word (pc);
if (pc[0] == '(')
pc++;
if (ascii_strncasecmp ("UID", pc, 3) == 0)
{
pc = imap_next_word (pc);
uid = atoi (pc);
if (uid != HEADER_DATA(h)->uid)
mutt_error (_("The message index is incorrect. Try reopening the mailbox."));
}
else if ((ascii_strncasecmp ("RFC822", pc, 6) == 0) ||
(ascii_strncasecmp ("BODY[]", pc, 6) == 0))
{
pc = imap_next_word (pc);
if (imap_get_literal_count(pc, &bytes) < 0)
{
imap_error ("imap_fetch_message()", buf);
goto bail;
}
mutt_progress_init (&progressbar, _("Fetching message..."),
MUTT_PROGRESS_SIZE, NetInc, bytes);
if (imap_read_literal (msg->fp, idata, bytes, &progressbar) < 0)
goto bail;
/* pick up trailing line */
if ((rc = imap_cmd_step (idata)) != IMAP_CMD_CONTINUE)
goto bail;
pc = idata->buf;
fetched = 1;
}
/* UW-IMAP will provide a FLAGS update here if the FETCH causes a
* change (eg from \Unseen to \Seen).
* Uncommitted changes in mutt take precedence. If we decide to
* incrementally update flags later, this won't stop us syncing */
else if ((ascii_strncasecmp ("FLAGS", pc, 5) == 0) && !h->changed)
{
if ((pc = imap_set_flags (idata, h, pc)) == NULL)
goto bail;
}
}
}
}
while (rc == IMAP_CMD_CONTINUE);
/* see comment before command start. */
h->active = 1;
fflush (msg->fp);
if (ferror (msg->fp))
{
mutt_perror (cache->path);
goto bail;
}
if (rc != IMAP_CMD_OK)
goto bail;
if (!fetched || !imap_code (idata->buf))
goto bail;
msg_cache_commit (idata, h);
parsemsg:
/* Update the header information. Previously, we only downloaded a
* portion of the headers, those required for the main display.
*/
rewind (msg->fp);
/* It may be that the Status header indicates a message is read, but the
* IMAP server doesn't know the message has been \Seen. So we capture
* the server's notion of 'read' and if it differs from the message info
* picked up in mutt_read_rfc822_header, we mark the message (and context
* changed). Another possibility: ignore Status on IMAP?*/
read = h->read;
newenv = mutt_read_rfc822_header (msg->fp, h, 0, 0);
mutt_merge_envelopes(h->env, &newenv);
/* see above. We want the new status in h->read, so we unset it manually
* and let mutt_set_flag set it correctly, updating context. */
if (read != h->read)
{
h->read = read;
mutt_set_flag (ctx, h, MUTT_NEW, read);
}
h->lines = 0;
fgets (buf, sizeof (buf), msg->fp);
while (!feof (msg->fp))
{
h->lines++;
fgets (buf, sizeof (buf), msg->fp);
}
h->content->length = ftell (msg->fp) - h->content->offset;
/* This needs to be done in case this is a multipart message */
#if defined(HAVE_PGP) || defined(HAVE_SMIME)
h->security = crypt_query (h->content);
#endif
mutt_clear_error();
rewind (msg->fp);
HEADER_DATA(h)->parsed = 1;
return 0;
bail:
safe_fclose (&msg->fp);
imap_cache_del (idata, h);
if (cache->path)
{
unlink (cache->path);
FREE (&cache->path);
}
return -1;
}
/* imap_continue: display a message and ask the user if she wants to
* go on. */
int imap_continue (const char *msg, const char *resp)
{
imap_error (msg, resp);
return mutt_yesorno (_("Continue?"), 0);
}
