util.pubsub: Fix behavior of persist_items disabled
When set to 'false' there is no need for a persistence interface at all,
since items are not persisted after being broadcast.
Had started wondering if maybe the behavior was wrong, after reading
parts of XEP-0060 that pointed in that direction.
Some discussion of this can be found in logs of
xmpp:xsf@muc.xmpp.org?join from around 2021-07-20
Thanks to Ralph for confirming.
--- a/spec/util_pubsub_spec.lua Wed Jul 21 23:35:08 2021 +0200
+++ b/spec/util_pubsub_spec.lua Thu Jul 22 21:01:11 2021 +0200
@@ -509,4 +509,23 @@
end);
end);
+ describe("persist_items", function()
+ it("can be disabled", function()
+ local broadcaster = spy.new(function(notif_type, node_name, subscribers, item) -- luacheck: ignore 212
+ end);
+ local service = pubsub.new { node_defaults = { persist_items = false }, broadcaster = broadcaster }
+
+ local ok = service:create("node", true)
+ assert.truthy(ok);
+
+ local ok = service:publish("node", true, "1", "item");
+ assert.truthy(ok);
+ assert.spy(broadcaster).was_called();
+
+ local ok, items = service:get_items("node", true);
+ assert.truthy(ok);
+ assert.same(items, {});
+ end);
+
+ end)
end);
--- a/util/pubsub.lua Wed Jul 21 23:35:08 2021 +0200
+++ b/util/pubsub.lua Thu Jul 22 21:01:11 2021 +0200
@@ -177,8 +177,11 @@
-- Load nodes from storage, if we have a store and it supports iterating over stored items
if config.nodestore and config.nodestore.users then
for node_name in config.nodestore:users() do
- service.nodes[node_name] = load_node_from_store(service, node_name);
- service.data[node_name] = config.itemstore(service.nodes[node_name].config, node_name);
+ local node = load_node_from_store(service, node_name);
+ service.nodes[node_name] = node;
+ if node.config.persist_items then
+ service.data[node_name] = config.itemstore(service.nodes[node_name].config, node_name);
+ end
for jid in pairs(service.nodes[node_name].subscribers) do
local normal_jid = service.config.normalize_jid(jid);
@@ -466,7 +469,10 @@
end
end
- self.data[node] = self.config.itemstore(self.nodes[node].config, node);
+ if config.persist_items then
+ self.data[node] = self.config.itemstore(self.nodes[node].config, node);
+ end
+
self.events.fire_event("node-created", { service = self, node = node, actor = actor });
if actor ~= true then
local ok, err = self:set_affiliation(node, true, actor, "owner");
@@ -564,9 +570,11 @@
if not self.config.itemcheck(item) then
return nil, "invalid-item";
end
- local node_data = self.data[node];
- if node_data then
- local ok = node_data:set(id, item);
+ if node_obj.config.persist_items then
+ if not self.data[node] then
+ self.data[node] = self.config.itemstore(self.nodes[node].config, node);
+ end
+ local ok = self.data[node]:set(id, item);
if not ok then
return nil, "internal-server-error";
end
@@ -816,7 +824,14 @@
end
if old_config["persist_items"] ~= node_obj.config["persist_items"] then
- self.data[node] = self.config.itemstore(self.nodes[node].config, node);
+ if node_obj.config["persist_items"] then
+ self.data[node] = self.config.itemstore(self.nodes[node].config, node);
+ elseif self.data[node] then
+ if self.data[node].clear then
+ self.data[node]:clear()
+ end
+ self.data[node] = nil;
+ end
elseif old_config["max_items"] ~= node_obj.config["max_items"] then
if self.data[node] then
self.data[node]:resize(self.nodes[node].config["max_items"]);