1 files changed, 62 insertions, 52 deletions

diff --git a/plugins/mod_pubsub/mod_pubsub.lua b/plugins/mod_pubsub/mod_pubsub.lua
index 8e7bfc53..82c787aa 100644
--- a/plugins/mod_pubsub/mod_pubsub.lua
+++ b/plugins/mod_pubsub/mod_pubsub.lua
@@ -2,6 +2,7 @@ local pubsub = require "util.pubsub";
 local st = require "util.stanza";
 local jid_bare = require "util.jid".bare;
 local usermanager = require "core.usermanager";
+local new_id = require "util.id".medium;
 
 local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
 local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event";
@@ -12,32 +13,35 @@ local autocreate_on_subscribe = module:get_option_boolean("autocreate_on_subscri
 local pubsub_disco_name = module:get_option_string("name", "Prosody PubSub Service");
 local expose_publisher = module:get_option_boolean("expose_publisher", false)
 
+local enable_persistence = module:get_option_boolean("experimental_pubsub_item_persistence", false);
+
 local service;
 
 local lib_pubsub = module:require "pubsub";
-local handlers = lib_pubsub.handlers;
-local pubsub_error_reply = lib_pubsub.pubsub_error_reply;
 
 module:depends("disco");
 module:add_identity("pubsub", "service", pubsub_disco_name);
 module:add_feature("http://jabber.org/protocol/pubsub");
 
 function handle_pubsub_iq(event)
-	local origin, stanza = event.origin, event.stanza;
-	local pubsub = stanza.tags[1];
-	local action = pubsub.tags[1];
-	if not action then
-		origin.send(st.error_reply(stanza, "cancel", "bad-request"));
-		return true;
-	end
-	local handler = handlers[stanza.attr.type.."_"..action.name];
-	if handler then
-		handler(origin, stanza, action, service);
-		return true;
-	end
+	return lib_pubsub.handle_pubsub_iq(event, service);
+end
+
+local node_store = module:open_store(module.name.."_nodes");
+
+local function create_simple_itemstore(node_config, node_name)
+	local archive = module:open_store("pubsub_"..node_name, "archive");
+	return lib_pubsub.archive_itemstore(archive, node_config, nil, node_name);
+end
+
+if enable_persistence then
+	module:log("warn", "Item persistence is an experimental feature. Note that ownership information is lost on restart.")
+else
+	create_simple_itemstore = nil;
 end
 
-function simple_broadcast(kind, node, jids, item, actor)
+
+function simple_broadcast(kind, node, jids, item, actor, node_obj)
 	if item then
 		item = st.clone(item);
 		item.attr.xmlns = nil; -- Clear the pubsub namespace
@@ -45,52 +49,55 @@ function simple_broadcast(kind, node, jids, item, actor)
 			item.attr.publisher = actor
 		end
 	end
-	local message = st.message({ from = module.host, type = "headline" })
+
+	local id = new_id();
+	local msg_type = node_obj and node_obj.config.message_type or "headline";
+	local message = st.message({ from = module.host, type = msg_type, id = id })
 		:tag("event", { xmlns = xmlns_pubsub_event })
 			:tag(kind, { node = node })
-				:add_child(item);
-	for jid in pairs(jids) do
-		module:log("debug", "Sending notification to %s", jid);
-		message.attr.to = jid;
-		module:send(message);
-	end
-end
 
-module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
-module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
+	if item then
+		message:add_child(item);
+	end
 
-local feature_map = {
-	create = { "create-nodes", "instant-nodes", "item-ids" };
-	retract = { "delete-items", "retract-items" };
-	purge = { "purge-nodes" };
-	publish = { "publish", autocreate_on_publish and "auto-create" };
-	delete = { "delete-nodes" };
-	get_items = { "retrieve-items" };
-	add_subscription = { "subscribe" };
-	get_subscriptions = { "retrieve-subscriptions" };
-	set_configure = { "config-node" };
-	get_default = { "retrieve-default" };
-};
-
-local function add_disco_features_from_service(service)
-	for method, features in pairs(feature_map) do
-		if service[method] then
-			for _, feature in ipairs(features) do
-				if feature then
-					module:add_feature(xmlns_pubsub.."#"..feature);
+	-- Compose a sensible textual representation of at least Atom payloads
+	if node_obj and item and node_obj.config.include_body and item.tags[1] then
+		local payload = item.tags[1];
+		if payload.attr.xmlns == "http://www.w3.org/2005/Atom" then
+			message:reset();
+			local title = payload:get_child_text("title");
+			local summary = payload:get_child_text("summary");
+			if not summary and title then
+				local author = payload:find("author/name#");
+				summary = title;
+				if author then
+					summary = author .. " posted " .. summary;
 				end
 			end
+			if summary then
+				message:body(summary);
+			end
 		end
 	end
-	for affiliation in pairs(service.config.capabilities) do
-		if affiliation ~= "none" and affiliation ~= "owner" then
-			module:add_feature(xmlns_pubsub.."#"..affiliation.."-affiliation");
-		end
+
+	module:broadcast(jids, message, pairs);
+end
+
+function is_item_stanza(item)
+	return st.is_stanza(item) and item.attr.xmlns == xmlns_pubsub and item.name == "item";
+end
+
+module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
+module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
+
+local function add_disco_features_from_service(service) --luacheck: ignore 431/service
+	for feature in lib_pubsub.get_feature_set(service) do
+		module:add_feature(xmlns_pubsub.."#"..feature);
 	end
 end
 
 module:hook("host-disco-info-node", function (event)
-	local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
+	local stanza, reply, node = event.stanza, event.reply, event.node;
 	local ok, ret = service:get_nodes(stanza.attr.from);
 	if not ok or not ret[node] then
 		return;
@@ -100,7 +107,7 @@ module:hook("host-disco-info-node", function (event)
 end);
 
 module:hook("host-disco-items-node", function (event)
-	local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
+	local stanza, reply, node = event.stanza, event.reply, event.node;
 	local ok, ret = service:get_items(node, stanza.attr.from);
 	if not ok then
 		return;
@@ -114,8 +121,8 @@ end);
 
 
 module:hook("host-disco-items", function (event)
-	local stanza, origin, reply = event.stanza, event.origin, event.reply;
-	local ok, ret = service:get_nodes(event.stanza.attr.from);
+	local stanza, reply = event.stanza, event.reply;
+	local ok, ret = service:get_nodes(stanza.attr.from);
 	if not ok then
 		return;
 	end
@@ -225,7 +232,10 @@ function module.load()
 		autocreate_on_publish = autocreate_on_publish;
 		autocreate_on_subscribe = autocreate_on_subscribe;
 
+		nodestore = node_store;
+		itemstore = create_simple_itemstore;
 		broadcaster = simple_broadcast;
+		itemcheck = is_item_stanza;
 		get_affiliation = get_affiliation;
 
 		normalize_jid = jid_bare;