static int
maildir_mail_get_fname(struct maildir_mailbox *mbox, struct mail *mail,
const char **fname_r)
{
enum maildir_uidlist_rec_flag flags;
struct mail_index_view *view;
uint32_t seq;
bool exists;
int ret;
ret = maildir_sync_lookup(mbox, mail->uid, &flags, fname_r);
if (ret != 0)
return ret;
/* file exists in index file, but not in dovecot-uidlist anymore. */
mail_set_expunged(mail);
/* one reason this could happen is if we delayed opening
dovecot-uidlist and we're trying to open a mail that got recently
expunged. Let's test this theory first: */
mail_index_refresh(mbox->box.index);
view = mail_index_view_open(mbox->box.index);
exists = mail_index_lookup_seq(view, mail->uid, &seq);
mail_index_view_close(&view);
if (exists) {
/* the message still exists in index. this means there's some
kind of a desync, which doesn't get fixed if cur/ mtime is
the same as in index. fix this by forcing a resync. */
(void)maildir_storage_sync_force(mbox, mail->uid);
}
return 0;
}
static void
maildir_mail_remove_sizes_from_filename(struct mail *mail,
enum mail_fetch_field field)
{
struct maildir_mailbox *mbox = (struct maildir_mailbox *)mail->box;
enum maildir_uidlist_rec_flag flags;
const char *fname;
uoff_t size;
char wrong_key;
if (mbox->storage->set->maildir_broken_filename_sizes) {
/* never try to fix sizes in maildir filenames */
return;
}
if (maildir_sync_lookup(mbox, mail->uid, &flags, &fname) <= 0)
return;
if (strchr(fname, MAILDIR_EXTRA_SEP) == NULL)
return;
if (field == MAIL_FETCH_VIRTUAL_SIZE &&
maildir_filename_get_size(fname, MAILDIR_EXTRA_VIRTUAL_SIZE,
&size)) {
wrong_key = 'W';
} else if (field == MAIL_FETCH_PHYSICAL_SIZE &&
maildir_filename_get_size(fname, MAILDIR_EXTRA_FILE_SIZE,
&size)) {
wrong_key = 'S';
} else {
/* the broken size isn't in filename */
return;
}
(void)maildir_file_do(mbox, mail->uid, do_fix_size, &wrong_key);
}
static void
maildir_mail_remove_sizes_from_filename(struct mail *mail,
enum mail_fetch_field field)
{
struct maildir_mailbox *mbox = (struct maildir_mailbox *)mail->box;
struct mail_private *pmail = (struct mail_private *)mail;
enum maildir_uidlist_rec_flag flags;
const char *fname;
uoff_t size;
struct maildir_size_fix_ctx ctx;
if (mbox->storage->set->maildir_broken_filename_sizes) {
/* never try to fix sizes in maildir filenames */
return;
}
if (maildir_sync_lookup(mbox, mail->uid, &flags, &fname) <= 0)
return;
if (strchr(fname, MAILDIR_EXTRA_SEP) == NULL)
return;
memset(&ctx, 0, sizeof(ctx));
ctx.physical_size = (uoff_t)-1;
if (field == MAIL_FETCH_VIRTUAL_SIZE &&
maildir_filename_get_size(fname, MAILDIR_EXTRA_VIRTUAL_SIZE,
&size)) {
ctx.wrong_key = 'W';
} else if (field == MAIL_FETCH_PHYSICAL_SIZE &&
maildir_filename_get_size(fname, MAILDIR_EXTRA_FILE_SIZE,
&size)) {
ctx.wrong_key = 'S';
} else {
/* the broken size isn't in filename */
return;
}
if (pmail->v.istream_opened != NULL) {
/* the mail could be e.g. compressed. get the physical size
the slow way by actually reading the mail. */
struct istream *input;
const struct stat *stp;
if (mail_get_stream(mail, NULL, NULL, &input) < 0)
return;
if (i_stream_stat(input, TRUE, &stp) < 0)
return;
ctx.physical_size = stp->st_size;
}
(void)maildir_file_do(mbox, mail->uid, do_fix_size, &ctx);
}
static int maildir_file_do_try(struct maildir_mailbox *mbox, uint32_t uid,
maildir_file_do_func *callback, void *context)
{
const char *path, *fname;
enum maildir_uidlist_rec_flag flags;
bool have_flags;
int ret;
ret = maildir_sync_lookup(mbox, uid, &flags, &fname);
if (ret <= 0)
return ret == 0 ? -2 : -1;
if ((flags & MAILDIR_UIDLIST_REC_FLAG_NONSYNCED) != 0) {
/* let's see if we can guess the filename based on index */
fname = maildir_filename_guess(mbox, uid, fname,
&flags, &have_flags);
}
/* make a copy, just in case callback refreshes uidlist and
the pointer becomes invalid. */
fname = t_strdup(fname);
ret = 0;
if ((flags & MAILDIR_UIDLIST_REC_FLAG_NEW_DIR) != 0) {
/* probably in new/ dir */
path = t_strconcat(mailbox_get_path(&mbox->box),
"/new/", fname, NULL);
ret = callback(mbox, path, context);
}
if (ret == 0) {
path = t_strconcat(mailbox_get_path(&mbox->box), "/cur/",
fname, NULL);
ret = callback(mbox, path, context);
}
if (ret > 0 && (flags & MAILDIR_UIDLIST_REC_FLAG_NONSYNCED) != 0) {
/* file was found. make sure we remember its latest name. */
maildir_uidlist_update_fname(mbox->uidlist, fname);
} else if (ret == 0 &&
(flags & MAILDIR_UIDLIST_REC_FLAG_NONSYNCED) == 0) {
/* file wasn't found. mark this message nonsynced, so we can
retry the lookup by guessing the flags */
maildir_uidlist_add_flags(mbox->uidlist, fname,
MAILDIR_UIDLIST_REC_FLAG_NONSYNCED);
}
return ret;
}
