static void
dsync_brain_mailbox_tree_add_delete(struct dsync_mailbox_tree *tree,
struct dsync_mailbox_tree *other_tree,
const struct dsync_mailbox_delete *other_del,
const struct dsync_mailbox_node **node_r,
const char **status_r)
{
const struct dsync_mailbox_node *node;
struct dsync_mailbox_node *other_node, *old_node;
const char *name;
/* see if we can find the deletion based on mailbox tree that should
still have the mailbox */
node = *node_r = dsync_mailbox_tree_find_delete(tree, other_del);
if (node == NULL) {
*status_r = "not found";
return;
}
switch (other_del->type) {
case DSYNC_MAILBOX_DELETE_TYPE_MAILBOX:
/* mailbox is always deleted */
break;
case DSYNC_MAILBOX_DELETE_TYPE_DIR:
if (other_del->timestamp <= node->last_renamed_or_created) {
/* we don't want to delete this directory, we already
have a newer timestamp for it */
*status_r = "keep directory, we have a newer timestamp";
return;
}
break;
case DSYNC_MAILBOX_DELETE_TYPE_UNSUBSCRIBE:
if (other_del->timestamp <= node->last_subscription_change) {
/* we don't want to unsubscribe, since we already have
a newer subscription timestamp */
*status_r = "keep subscription, we have a newer timestamp";
return;
}
break;
}
/* make a node for it in the other mailbox tree */
name = dsync_mailbox_node_get_full_name(tree, node);
other_node = dsync_mailbox_tree_get(other_tree, name);
if (other_node->existence == DSYNC_MAILBOX_NODE_EXISTS &&
(!guid_128_is_empty(other_node->mailbox_guid) ||
other_del->type != DSYNC_MAILBOX_DELETE_TYPE_MAILBOX)) {
/* other side has already created a new mailbox or
directory with this name, we can't delete it */
*status_r = "name has already been recreated";
return;
}
/* ok, mark the other node deleted */
if (other_del->type == DSYNC_MAILBOX_DELETE_TYPE_MAILBOX) {
memcpy(other_node->mailbox_guid, node->mailbox_guid,
sizeof(other_node->mailbox_guid));
}
if (other_node->ns != node->ns && other_node->ns != NULL) {
/* namespace mismatch for this node. this shouldn't happen
normally, but especially during some misconfigurations it's
possible that one side has created mailboxes that conflict
with another namespace's prefix. since we're here because
one of the mailboxes was deleted, we'll just ignore this. */
*status_r = "namespace mismatch";
return;
}
other_node->ns = node->ns;
if (other_del->type != DSYNC_MAILBOX_DELETE_TYPE_UNSUBSCRIBE) {
other_node->existence = DSYNC_MAILBOX_NODE_DELETED;
*status_r = "marked as deleted";
} else {
other_node->last_subscription_change = other_del->timestamp;
other_node->subscribed = FALSE;
*status_r = "marked as unsubscribed";
}
if (dsync_mailbox_tree_guid_hash_add(other_tree, other_node,
&old_node) < 0)
i_unreached();
}
static void
dsync_brain_mailbox_tree_add_delete(struct dsync_mailbox_tree *tree,
struct dsync_mailbox_tree *other_tree,
const struct dsync_mailbox_delete *other_del)
{
const struct dsync_mailbox_node *node;
struct dsync_mailbox_node *other_node, *old_node;
const char *name;
/* see if we can find the deletion based on mailbox tree that should
still have the mailbox */
node = dsync_mailbox_tree_find_delete(tree, other_del);
if (node == NULL)
return;
switch (other_del->type) {
case DSYNC_MAILBOX_DELETE_TYPE_MAILBOX:
/* mailbox is always deleted */
break;
case DSYNC_MAILBOX_DELETE_TYPE_DIR:
if (other_del->timestamp <= node->last_renamed_or_created) {
/* we don't want to delete this directory, we already
have a newer timestamp for it */
return;
}
break;
case DSYNC_MAILBOX_DELETE_TYPE_UNSUBSCRIBE:
if (other_del->timestamp <= node->last_subscription_change) {
/* we don't want to unsubscribe, since we already have
a newer subscription timestamp */
return;
}
break;
}
/* make a node for it in the other mailbox tree */
name = dsync_mailbox_node_get_full_name(tree, node);
other_node = dsync_mailbox_tree_get(other_tree, name);
if (other_node->existence == DSYNC_MAILBOX_NODE_EXISTS &&
(!guid_128_is_empty(other_node->mailbox_guid) ||
other_del->type != DSYNC_MAILBOX_DELETE_TYPE_MAILBOX)) {
/* other side has already created a new mailbox or
directory with this name, we can't delete it */
return;
}
/* ok, mark the other node deleted */
if (other_del->type == DSYNC_MAILBOX_DELETE_TYPE_MAILBOX) {
memcpy(other_node->mailbox_guid, node->mailbox_guid,
sizeof(other_node->mailbox_guid));
}
i_assert(other_node->ns == NULL || other_node->ns == node->ns);
other_node->ns = node->ns;
if (other_del->type != DSYNC_MAILBOX_DELETE_TYPE_UNSUBSCRIBE)
other_node->existence = DSYNC_MAILBOX_NODE_DELETED;
else {
other_node->last_subscription_change = other_del->timestamp;
other_node->subscribed = FALSE;
}
if (dsync_mailbox_tree_guid_hash_add(other_tree, other_node,
&old_node) < 0)
i_unreached();
}
