static void
dsync_brain_sync_mailbox_init(struct dsync_brain *brain,
struct mailbox *box,
const struct dsync_mailbox *local_dsync_box,
bool wait_for_remote_box)
{
const struct dsync_mailbox_state *state;
i_assert(brain->box_importer == NULL);
i_assert(brain->box_exporter == NULL);
i_assert(box->synced);
brain->box = box;
brain->pre_box_state = brain->state;
if (wait_for_remote_box) {
brain->box_send_state = DSYNC_BOX_STATE_MAILBOX;
brain->box_recv_state = DSYNC_BOX_STATE_MAILBOX;
} else {
dsync_brain_sync_init_box_states(brain);
}
brain->local_dsync_box = *local_dsync_box;
memset(&brain->remote_dsync_box, 0, sizeof(brain->remote_dsync_box));
state = dsync_mailbox_state_find(brain, local_dsync_box->mailbox_guid);
if (state != NULL)
brain->mailbox_state = *state;
else {
memset(&brain->mailbox_state, 0, sizeof(brain->mailbox_state));
memcpy(brain->mailbox_state.mailbox_guid,
local_dsync_box->mailbox_guid,
sizeof(brain->mailbox_state.mailbox_guid));
brain->mailbox_state.last_uidvalidity =
local_dsync_box->uid_validity;
}
}
static void
dsync_brain_sync_mailbox_init_remote(struct dsync_brain *brain,
const struct dsync_mailbox *remote_dsync_box)
{
enum dsync_mailbox_import_flags import_flags = 0;
const struct dsync_mailbox_state *state;
uint32_t last_common_uid;
uint64_t last_common_modseq, last_common_pvt_modseq;
i_assert(brain->box_importer == NULL);
i_assert(brain->log_scan != NULL);
i_assert(memcmp(brain->local_dsync_box.mailbox_guid,
remote_dsync_box->mailbox_guid,
sizeof(remote_dsync_box->mailbox_guid)) == 0);
brain->remote_dsync_box = *remote_dsync_box;
state = dsync_mailbox_state_find(brain, remote_dsync_box->mailbox_guid);
if (state != NULL) {
last_common_uid = state->last_common_uid;
last_common_modseq = state->last_common_modseq;
last_common_pvt_modseq = state->last_common_pvt_modseq;
} else {
last_common_uid = 0;
last_common_modseq = 0;
last_common_pvt_modseq = 0;
}
if (brain->mail_requests)
import_flags |= DSYNC_MAILBOX_IMPORT_FLAG_WANT_MAIL_REQUESTS;
if (brain->master_brain)
import_flags |= DSYNC_MAILBOX_IMPORT_FLAG_MASTER_BRAIN;
if (brain->backup_recv && !brain->no_backup_overwrite)
import_flags |= DSYNC_MAILBOX_IMPORT_FLAG_REVERT_LOCAL_CHANGES;
if (brain->debug)
import_flags |= DSYNC_MAILBOX_IMPORT_FLAG_DEBUG;
if (brain->local_dsync_box.have_save_guids &&
(remote_dsync_box->have_save_guids ||
(brain->backup_recv && remote_dsync_box->have_guids)))
import_flags |= DSYNC_MAILBOX_IMPORT_FLAG_MAILS_HAVE_GUIDS;
if (brain->local_dsync_box.have_only_guid128 ||
remote_dsync_box->have_only_guid128)
import_flags |= DSYNC_MAILBOX_IMPORT_FLAG_MAILS_USE_GUID128;
brain->box_importer = brain->backup_send ? NULL :
dsync_mailbox_import_init(brain->box, brain->log_scan,
last_common_uid, last_common_modseq,
last_common_pvt_modseq,
remote_dsync_box->uid_next,
remote_dsync_box->first_recent_uid,
remote_dsync_box->highest_modseq,
remote_dsync_box->highest_pvt_modseq,
import_flags);
}
static bool
dsync_brain_has_mailbox_state_changed(struct dsync_brain *brain,
const struct dsync_mailbox *dsync_box)
{
const struct dsync_mailbox_state *state;
if (brain->sync_type != DSYNC_BRAIN_SYNC_TYPE_STATE)
return TRUE;
state = dsync_mailbox_state_find(brain, dsync_box->mailbox_guid);
return state == NULL ||
state->last_uidvalidity != dsync_box->uid_validity ||
state->last_common_uid+1 != dsync_box->uid_next ||
state->last_common_modseq != dsync_box->highest_modseq ||
state->last_common_pvt_modseq != dsync_box->highest_pvt_modseq;
}
void dsync_brain_mailbox_update_pre(struct dsync_brain *brain,
struct mailbox *box,
const struct dsync_mailbox *local_box,
const struct dsync_mailbox *remote_box)
{
struct mailbox_update update;
const struct dsync_mailbox_state *state;
memset(&update, 0, sizeof(update));
if (local_box->uid_validity != remote_box->uid_validity) {
/* Keep the UIDVALIDITY for the mailbox that has more
messages. If they equal, use the higher UIDVALIDITY. */
if (remote_box->messages_count > local_box->messages_count ||
(remote_box->messages_count == local_box->messages_count &&
remote_box->uid_validity > local_box->uid_validity))
update.uid_validity = remote_box->uid_validity;
state = dsync_mailbox_state_find(brain, local_box->mailbox_guid);
if (state != NULL && state->last_common_uid > 0) {
/* we can't continue syncing this mailbox in this
session, because the other side already started
sending mailbox changes, but not for all mails. */
dsync_mailbox_state_remove(brain, local_box->mailbox_guid);
// FIXME: handle this properly
}
}
dsync_cache_fields_update(local_box, remote_box, &update);
if (update.uid_validity == 0 &&
update.cache_updates == NULL) {
/* no changes */
return;
}
if (mailbox_update(box, &update) < 0) {
i_error("Couldn't update mailbox %s metadata: %s",
mailbox_get_vname(box),
mailbox_get_last_error(box, NULL));
brain->failed = TRUE;
}
}