+function service:get_subscription(node, actor, jid)
+ -- Access checking
+ local cap;
+ if actor == true or jid == actor or self:jids_equal(actor, jid) then
+ cap = "get_subscription";
+ else
+ cap = "get_subscription_other";
+ end
+ if not self:may(node, actor, cap) then
+ return false, "forbidden";
+ end
+ --
+ local node_obj = self.nodes[node];
+ if not node_obj then
+ return false, "item-not-found";
+ end
+ return true, node_obj.subscribers[jid];
+end
+
+function service:create(node, actor)
+ -- Access checking
+ if not self:may(node, actor, "create") then
+ return false, "forbidden";
+ end
+ --
+ if self.nodes[node] then
+ return false, "conflict";
+ end
+
+ self.nodes[node] = {
+ name = node;
+ subscribers = {};
+ config = {};
+ data = {};
+ affiliations = {};
+ };
+ local ok, err = self:set_affiliation(node, true, actor, "owner");
+ if not ok then
+ self.nodes[node] = nil;
+ end
+ return ok, err;
+end
+
+function service:publish(node, actor, id, item)
+ -- Access checking
+ if not self:may(node, actor, "publish") then
+ return false, "forbidden";
+ end
+ --
+ local node_obj = self.nodes[node];
+ if not node_obj then
+ if not self.config.autocreate_on_publish then
+ return false, "item-not-found";
+ end
+ local ok, err = self:create(node, actor);
+ if not ok then
+ return ok, err;
+ end
+ node_obj = self.nodes[node];
+ end
+ node_obj.data[id] = item;
+ self.config.broadcaster(node, node_obj.subscribers, item);
+ return true;
+end
+
+function service:retract(node, actor, id, retract)
+ -- Access checking
+ if not self:may(node, actor, "retract") then
+ return false, "forbidden";
+ end
+ --
+ local node_obj = self.nodes[node];
+ 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(node, node_obj.subscribers, retract);
+ 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