static void maildir_mail_remove_sizes_from_uidlist(struct mail *mail)
{
struct maildir_mailbox *mbox = (struct maildir_mailbox *)mail->box;
if (maildir_uidlist_lookup_ext(mbox->uidlist, mail->uid,
MAILDIR_UIDLIST_REC_EXT_VSIZE) != NULL) {
maildir_uidlist_unset_ext(mbox->uidlist, mail->uid,
MAILDIR_UIDLIST_REC_EXT_VSIZE);
}
if (maildir_uidlist_lookup_ext(mbox->uidlist, mail->uid,
MAILDIR_UIDLIST_REC_EXT_PSIZE) != NULL) {
maildir_uidlist_unset_ext(mbox->uidlist, mail->uid,
MAILDIR_UIDLIST_REC_EXT_PSIZE);
}
}
static bool
maildir_expunge_is_valid_guid(struct maildir_index_sync_context *ctx,
uint32_t uid, const char *filename,
guid_128_t expunged_guid_128)
{
guid_128_t guid_128;
const char *guid;
if (guid_128_is_empty(expunged_guid_128)) {
/* no GUID associated with expunge */
return TRUE;
}
T_BEGIN {
guid = maildir_uidlist_lookup_ext(ctx->mbox->uidlist, uid,
MAILDIR_UIDLIST_REC_EXT_GUID);
if (guid == NULL)
guid = t_strcut(filename, ':');
mail_generate_guid_128_hash(guid, guid_128);
} T_END;
if (memcmp(guid_128, expunged_guid_128, sizeof(guid_128)) == 0)
return TRUE;
mail_storage_set_critical(&ctx->mbox->storage->storage,
"Mailbox %s: Expunged GUID mismatch for UID %u: %s vs %s",
ctx->mbox->box.vname, ctx->uid,
guid_128_to_string(guid_128),
guid_128_to_string(expunged_guid_128));
return FALSE;
}
static int maildir_quick_size_lookup(struct index_mail *mail, bool vsize,
uoff_t *size_r)
{
struct mail *_mail = &mail->mail.mail;
struct maildir_mailbox *mbox = (struct maildir_mailbox *)_mail->box;
enum maildir_uidlist_rec_ext_key key;
const char *path, *fname, *value;
if (!_mail->saving) {
if (maildir_mail_get_fname(mbox, _mail, &fname) <= 0)
return -1;
} else {
if (maildir_save_file_get_size(_mail->transaction, _mail->seq,
vsize, size_r) == 0)
return 1;
path = maildir_save_file_get_path(_mail->transaction,
_mail->seq);
fname = strrchr(path, '/');
fname = fname != NULL ? fname + 1 : path;
}
/* size can be included in filename */
if (vsize || !mbox->storage->set->maildir_broken_filename_sizes) {
if (maildir_filename_get_size(fname,
vsize ? MAILDIR_EXTRA_VIRTUAL_SIZE :
MAILDIR_EXTRA_FILE_SIZE, size_r))
return 1;
}
/* size can be included in uidlist entry */
if (!_mail->saving) {
key = vsize ? MAILDIR_UIDLIST_REC_EXT_VSIZE :
MAILDIR_UIDLIST_REC_EXT_PSIZE;
value = maildir_uidlist_lookup_ext(mbox->uidlist, _mail->uid,
key);
if (value != NULL && str_to_uoff(value, size_r) == 0)
return 1;
}
return 0;
}
static int
maildir_mail_get_special(struct mail *_mail, enum mail_fetch_field field,
const char **value_r)
{
struct index_mail *mail = (struct index_mail *)_mail;
struct maildir_mailbox *mbox = (struct maildir_mailbox *)_mail->box;
const char *path, *fname = NULL, *end, *guid, *uidl, *order;
struct stat st;
switch (field) {
case MAIL_FETCH_GUID:
/* use GUID from uidlist if it exists */
i_assert(!_mail->saving);
if (mail->data.guid != NULL) {
*value_r = mail->data.guid;
return 0;
}
/* first make sure that we have a refreshed uidlist */
if (maildir_mail_get_fname(mbox, _mail, &fname) <= 0)
return -1;
guid = maildir_uidlist_lookup_ext(mbox->uidlist, _mail->uid,
MAILDIR_UIDLIST_REC_EXT_GUID);
if (guid != NULL) {
if (*guid != '\0') {
*value_r = mail->data.guid =
p_strdup(mail->mail.data_pool, guid);
return 0;
}
mail_storage_set_critical(_mail->box->storage,
"Maildir %s: Corrupted dovecot-uidlist: "
"UID %u had empty GUID, clearing it",
mailbox_get_path(_mail->box), _mail->uid);
maildir_uidlist_unset_ext(mbox->uidlist, _mail->uid,
MAILDIR_UIDLIST_REC_EXT_GUID);
}
/* default to base filename: */
if (maildir_mail_get_special(_mail, MAIL_FETCH_STORAGE_ID,
value_r) < 0)
return -1;
mail->data.guid = mail->data.filename;
return 0;
case MAIL_FETCH_STORAGE_ID:
if (mail->data.filename != NULL) {
*value_r = mail->data.filename;
return 0;
}
if (fname != NULL) {
/* we came here from MAIL_FETCH_GUID,
avoid a second lookup */
} else if (!_mail->saving) {
if (maildir_mail_get_fname(mbox, _mail, &fname) <= 0)
return -1;
} else {
path = maildir_save_file_get_path(_mail->transaction,
_mail->seq);
fname = strrchr(path, '/');
fname = fname != NULL ? fname + 1 : path;
}
end = strchr(fname, MAILDIR_INFO_SEP);
mail->data.filename = end == NULL ?
p_strdup(mail->mail.data_pool, fname) :
p_strdup_until(mail->mail.data_pool, fname, end);
*value_r = mail->data.filename;
return 0;
case MAIL_FETCH_UIDL_BACKEND:
uidl = maildir_uidlist_lookup_ext(mbox->uidlist, _mail->uid,
MAILDIR_UIDLIST_REC_EXT_POP3_UIDL);
if (uidl == NULL) {
/* use the default */
*value_r = "";
} else if (*uidl == '\0') {
/* special optimization case: use the base file name */
return maildir_mail_get_special(_mail,
MAIL_FETCH_STORAGE_ID, value_r);
} else {
*value_r = p_strdup(mail->mail.data_pool, uidl);
}
return 0;
case MAIL_FETCH_POP3_ORDER:
order = maildir_uidlist_lookup_ext(mbox->uidlist, _mail->uid,
MAILDIR_UIDLIST_REC_EXT_POP3_ORDER);
if (order == NULL) {
*value_r = "";
} else {
*value_r = p_strdup(mail->mail.data_pool, order);
}
return 0;
case MAIL_FETCH_REFCOUNT:
if (maildir_mail_stat(_mail, &st) < 0)
return -1;
*value_r = p_strdup_printf(mail->mail.data_pool, "%lu",
(unsigned long)st.st_nlink);
return 0;
default:
return index_mail_get_special(_mail, field, value_r);
}
}
