/* Read a MH/maildir style mailbox.
*
* args:
* ctx [IN/OUT] context for this mailbox
* subdir [IN] NULL for MH mailboxes, otherwise the subdir of the
* maildir mailbox to read from
*/
int mh_read_dir (CONTEXT *ctx, const char *subdir)
{
struct maildir *md;
struct mh_sequences mhs;
struct maildir **last;
int count;
md = NULL;
last = &md;
count = 0;
memset (&mhs, 0, sizeof (mhs));
maildir_update_mtime(ctx);
if(maildir_parse_dir(ctx, &last, subdir, &count) == -1)
return -1;
if (ctx->magic == M_MH)
{
mh_read_sequences (&mhs, ctx->path);
mh_update_maildir (md, &mhs);
mhs_free_sequences (&mhs);
}
maildir_move_to_context(ctx, &md);
return 0;
}
int mh_check_mailbox(CONTEXT *ctx, int *index_hint)
{
char buf[_POSIX_PATH_MAX], b1[LONG_STRING], b2[LONG_STRING];
struct stat st, st_cur;
short modified = 0, have_new = 0, occult = 0;
struct maildir *md, *p;
struct maildir **last;
HASH *fnames;
int i, j;
if(!option (OPTCHECKNEW))
return 0;
if(ctx->magic == M_MH)
{
strfcpy(buf, ctx->path, sizeof(buf));
if(stat(buf, &st) == -1)
return -1;
/* create .mh_sequences when there isn't one. */
snprintf (buf, sizeof (buf), "%s/.mh_sequences", ctx->path);
if (stat (buf, &st_cur) == -1)
{
if (errno == ENOENT)
{
char *tmp;
FILE *fp = NULL;
if (mh_mkstemp (ctx, &fp, &tmp) == 0)
{
safe_fclose (&fp);
if (safe_rename (tmp, buf) == -1)
unlink (tmp);
safe_free ((void **) &tmp);
}
if (stat (buf, &st_cur) == -1)
modified = 1;
}
else
modified = 1;
}
}
else if(ctx->magic == M_MAILDIR)
{
snprintf(buf, sizeof(buf), "%s/new", ctx->path);
if(stat(buf, &st) == -1)
return -1;
snprintf(buf, sizeof(buf), "%s/cur", ctx->path);
if(stat(buf, &st_cur) == -1) /* XXX - name is bad. */
modified = 1;
}
if(!modified && ctx->magic == M_MAILDIR && st_cur.st_mtime > ctx->mtime_cur)
modified = 1;
if(!modified && ctx->magic == M_MH && (st.st_mtime > ctx->mtime || st_cur.st_mtime > ctx->mtime_cur))
modified = 1;
if(modified || (ctx->magic == M_MAILDIR && st.st_mtime > ctx->mtime))
have_new = 1;
if(!modified && !have_new)
return 0;
ctx->mtime_cur = st_cur.st_mtime;
ctx->mtime = st.st_mtime;
#if 0
if(Sort != SORT_ORDER)
{
short old_sort;
old_sort = Sort;
Sort = SORT_ORDER;
mutt_sort_headers(ctx, 1);
Sort = old_sort;
}
#endif
md = NULL;
last = &md;
if(ctx->magic == M_MAILDIR)
{
if(have_new)
maildir_parse_dir(ctx, &last, "new", NULL);
if(modified)
maildir_parse_dir(ctx, &last, "cur", NULL);
}
else if(ctx->magic == M_MH)
{
struct mh_sequences mhs;
memset (&mhs, 0, sizeof (mhs));
maildir_parse_dir (ctx, &last, NULL, NULL);
mh_read_sequences (&mhs, ctx->path);
mh_update_maildir (md, &mhs);
mhs_free_sequences (&mhs);
}
/* check for modifications and adjust flags */
fnames = hash_create (1031);
for(p = md; p; p = p->next)
{
if(ctx->magic == M_MAILDIR)
{
maildir_canon_filename(b2, p->h->path, sizeof(b2));
p->canon_fname = safe_strdup(b2);
}
else
p->canon_fname = safe_strdup(p->h->path);
hash_insert(fnames, p->canon_fname, p, 0);
}
for(i = 0; i < ctx->msgcount; i++)
{
ctx->hdrs[i]->active = 0;
if(ctx->magic == M_MAILDIR)
maildir_canon_filename(b1, ctx->hdrs[i]->path, sizeof(b1));
else
strfcpy(b1, ctx->hdrs[i]->path, sizeof(b1));
dprint(2, (debugfile, "%s:%d: mh_check_mailbox(): Looking for %s.\n", __FILE__, __LINE__, b1));
if((p = hash_find(fnames, b1)) && p->h &&
mbox_strict_cmp_headers(ctx->hdrs[i], p->h))
{
/* found the right message */
dprint(2, (debugfile, "%s:%d: Found. Flags before: %s%s%s%s%s\n", __FILE__, __LINE__,
ctx->hdrs[i]->flagged ? "f" : "",
ctx->hdrs[i]->deleted ? "D" : "",
ctx->hdrs[i]->replied ? "r" : "",
ctx->hdrs[i]->old ? "O" : "",
ctx->hdrs[i]->read ? "R" : ""));
if(mutt_strcmp(ctx->hdrs[i]->path, p->h->path))
mutt_str_replace (&ctx->hdrs[i]->path, p->h->path);
if(modified)
{
if(!ctx->hdrs[i]->changed)
{
mutt_set_flag (ctx, ctx->hdrs[i], M_FLAG, p->h->flagged);
mutt_set_flag (ctx, ctx->hdrs[i], M_REPLIED, p->h->replied);
mutt_set_flag (ctx, ctx->hdrs[i], M_READ, p->h->read);
}
mutt_set_flag(ctx, ctx->hdrs[i], M_OLD, p->h->old);
}
ctx->hdrs[i]->active = 1;
dprint(2, (debugfile, "%s:%d: Flags after: %s%s%s%s%s\n", __FILE__, __LINE__,
ctx->hdrs[i]->flagged ? "f" : "",
ctx->hdrs[i]->deleted ? "D" : "",
ctx->hdrs[i]->replied ? "r" : "",
ctx->hdrs[i]->old ? "O" : "",
ctx->hdrs[i]->read ? "R" : ""));
mutt_free_header(&p->h);
}
else if (ctx->magic == M_MAILDIR && !modified && !strncmp("cur/", ctx->hdrs[i]->path, 4))
{
/* If the cur/ part wasn't externally modified for a maildir
* type folder, assume the message is still active. Actually,
* we simply don't know.
*/
ctx->hdrs[i]->active = 1;
}
else if (modified || (ctx->magic == M_MAILDIR && !strncmp("new/", ctx->hdrs[i]->path, 4)))
{
/* Mailbox was modified, or a new message vanished. */
/* Note: This code will _not_ apply for a new message which
* is just moved to cur/, as this would modify cur's time
* stamp and lead to modified == 1. Thus, we'd have parsed
* the complete folder above, and the message would have
* been found in the look-up table.
*/
dprint(2, (debugfile, "%s:%d: Not found. Flags were: %s%s%s%s%s\n", __FILE__, __LINE__,
ctx->hdrs[i]->flagged ? "f" : "",
ctx->hdrs[i]->deleted ? "D" : "",
ctx->hdrs[i]->replied ? "r" : "",
ctx->hdrs[i]->old ? "O" : "",
ctx->hdrs[i]->read ? "R" : ""));
occult = 1;
}
}
/* destroy the file name hash */
hash_destroy(&fnames, NULL);
/* If we didn't just get new mail, update the tables. */
if(modified || occult)
{
short old_sort;
int old_count;
#ifndef LIBMUTT
if (Sort != SORT_ORDER)
{
old_sort = Sort;
Sort = SORT_ORDER;
mutt_sort_headers (ctx, 1);
Sort = old_sort;
}
#endif
old_count = ctx->msgcount;
for (i = 0, j = 0; i < old_count; i++)
{
if (ctx->hdrs[i]->active && index_hint && *index_hint == i)
*index_hint = j;
if (ctx->hdrs[i]->active)
ctx->hdrs[i]->index = j++;
}
mx_update_tables(ctx, 0);
}
/* Incorporate new messages */
maildir_move_to_context(ctx, &md);
return (modified || occult) ? M_REOPENED : have_new ? M_NEW_MAIL : 0;
}
/**
* mh_mbox_check - Implements MxOps::mbox_check()
*
* This function handles arrival of new mail and reopening of mh/maildir
* folders. Things are getting rather complex because we don't have a
* well-defined "mailbox order", so the tricks from mbox.c and mx.c won't work
* here.
*
* Don't change this code unless you _really_ understand what happens.
*/
int mh_mbox_check(struct Mailbox *m, int *index_hint)
{
if (!m)
return -1;
char buf[PATH_MAX];
struct stat st, st_cur;
bool modified = false, occult = false, flags_changed = false;
int num_new = 0;
struct Maildir *md = NULL, *p = NULL;
struct Maildir **last = NULL;
struct MhSequences mhs = { 0 };
int count = 0;
struct Hash *fnames = NULL;
struct MaildirMboxData *mdata = maildir_mdata_get(m);
if (!C_CheckNew)
return 0;
mutt_str_strfcpy(buf, m->path, sizeof(buf));
if (stat(buf, &st) == -1)
return -1;
/* create .mh_sequences when there isn't one. */
snprintf(buf, sizeof(buf), "%s/.mh_sequences", m->path);
int i = stat(buf, &st_cur);
if ((i == -1) && (errno == ENOENT))
{
char *tmp = NULL;
FILE *fp = NULL;
if (mh_mkstemp(m, &fp, &tmp) == 0)
{
mutt_file_fclose(&fp);
if (mutt_file_safe_rename(tmp, buf) == -1)
unlink(tmp);
FREE(&tmp);
}
}
if ((i == -1) && (stat(buf, &st_cur) == -1))
modified = true;
if ((mutt_file_stat_timespec_compare(&st, MUTT_STAT_MTIME, &m->mtime) > 0) ||
(mutt_file_stat_timespec_compare(&st_cur, MUTT_STAT_MTIME, &mdata->mtime_cur) > 0))
{
modified = true;
}
if (!modified)
return 0;
/* Update the modification times on the mailbox.
*
* The monitor code notices changes in the open mailbox too quickly.
* In practice, this sometimes leads to all the new messages not being
* noticed during the SAME group of mtime stat updates. To work around
* the problem, don't update the stat times for a monitor caused check. */
#ifdef USE_INOTIFY
if (MonitorContextChanged)
MonitorContextChanged = 0;
else
#endif
{
mutt_file_get_stat_timespec(&mdata->mtime_cur, &st_cur, MUTT_STAT_MTIME);
mutt_file_get_stat_timespec(&m->mtime, &st, MUTT_STAT_MTIME);
}
md = NULL;
last = &md;
maildir_parse_dir(m, &last, NULL, &count, NULL);
maildir_delayed_parsing(m, &md, NULL);
if (mh_read_sequences(&mhs, m->path) < 0)
return -1;
mh_update_maildir(md, &mhs);
mhs_free_sequences(&mhs);
/* check for modifications and adjust flags */
fnames = mutt_hash_new(count, MUTT_HASH_NO_FLAGS);
for (p = md; p; p = p->next)
{
/* the hash key must survive past the header, which is freed below. */
p->canon_fname = mutt_str_strdup(p->email->path);
mutt_hash_insert(fnames, p->canon_fname, p);
}
for (i = 0; i < m->msg_count; i++)
{
m->emails[i]->active = false;
p = mutt_hash_find(fnames, m->emails[i]->path);
if (p && p->email && mutt_email_cmp_strict(m->emails[i], p->email))
{
m->emails[i]->active = true;
/* found the right message */
if (!m->emails[i]->changed)
if (maildir_update_flags(m, m->emails[i], p->email))
flags_changed = true;
mutt_email_free(&p->email);
}
else /* message has disappeared */
occult = true;
}
/* destroy the file name hash */
mutt_hash_free(&fnames);
/* If we didn't just get new mail, update the tables. */
if (occult)
mutt_mailbox_changed(m, MBN_RESORT);
/* Incorporate new messages */
num_new = maildir_move_to_mailbox(m, &md);
if (num_new > 0)
{
mutt_mailbox_changed(m, MBN_INVALID);
m->changed = true;
}
if (occult)
return MUTT_REOPENED;
if (num_new > 0)
return MUTT_NEW_MAIL;
if (flags_changed)
return MUTT_FLAGS;
return 0;
}
