+ if (not node_obj) or (not node_obj.data[id]) then
+ return false, "item-not-found";
+ end
+ node_obj.data[id] = nil;
+ if retract then
+ self.config.broadcaster("items", node, node_obj.subscribers, retract);
+ end
+ return true
+end
+
+function service:purge(node, actor, notify)
+ -- Access checking
+ if not self:may(node, actor, "retract") then
+ return false, "forbidden";
+ end
+ --
+ local node_obj = self.nodes[node];
+ if not node_obj then
+ return false, "item-not-found";
+ end
+ node_obj.data = {}; -- Purge
+ if notify then
+ self.config.broadcaster("purge", node, node_obj.subscribers);
+ end
+ return true
+end
+
+function service:get_items(node, actor, id)
+ -- Access checking
+ if not self:may(node, actor, "get_items") then
+ return false, "forbidden";
+ end
+ --
+ local node_obj = self.nodes[node];
+ if not node_obj then
+ return false, "item-not-found";
+ end
+ if id then -- Restrict results to a single specific item
+ return true, { [id] = node_obj.data[id] };
+ else
+ return true, node_obj.data;
+ end
+end
+
+function service:get_nodes(actor)
+ -- Access checking
+ if not self:may(nil, actor, "get_nodes") then
+ return false, "forbidden";
+ end
+ --
+ return true, self.nodes;
+end
+
+function service:get_subscriptions(node, actor, jid)
+ -- Access checking
+ local cap;
+ if actor == true or jid == actor or self:jids_equal(actor, jid) then
+ cap = "get_subscriptions";
+ else
+ cap = "get_subscriptions_other";
+ end
+ if not self:may(node, actor, cap) then
+ return false, "forbidden";
+ end
+ --
+ local node_obj;
+ if node then
+ node_obj = self.nodes[node];
+ if not node_obj then
+ return false, "item-not-found";
+ end
+ end
+ local normal_jid = self.config.normalize_jid(jid);
+ local subs = self.subscriptions[normal_jid];
+ -- We return the subscription object from the node to save
+ -- a get_subscription() call for each node.
+ local ret = {};
+ if subs then
+ for jid, subscribed_nodes in pairs(subs) do
+ if node then -- Return only subscriptions to this node
+ if subscribed_nodes[node] then
+ ret[#ret+1] = {
+ node = subscribed_nodes[node];
+ jid = jid;
+ subscription = node_obj.subscribers[jid];
+ };
+ end
+ else -- Return subscriptions to all nodes
+ local nodes = self.nodes;
+ for subscribed_node in pairs(subscribed_nodes) do
+ ret[#ret+1] = {
+ node = subscribed_node;
+ jid = jid;
+ subscription = nodes[subscribed_node].subscribers[jid];
+ };
+ end
+ end