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-rw-r--r--plugins/mod_pubsub/mod_pubsub.lua250
1 files changed, 109 insertions, 141 deletions
diff --git a/plugins/mod_pubsub/mod_pubsub.lua b/plugins/mod_pubsub/mod_pubsub.lua
index 8e7bfc53..40adcafe 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";
@@ -15,112 +16,143 @@ local expose_publisher = module:get_option_boolean("expose_publisher", 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;
+ return lib_pubsub.handle_pubsub_iq(event, service);
+end
+
+-- An itemstore supports the following methods:
+-- items(): iterator over (id, item)
+-- get(id): return item with id
+-- set(id, item): set id to item
+-- clear(): clear all items
+-- resize(n): set new limit and trim oldest items
+-- tail(): return the latest item
+
+-- A nodestore supports the following methods:
+-- set(node_name, node_data)
+-- get(node_name)
+-- users(): iterator over (node_name)
+
+
+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
+
+function simple_broadcast(kind, node, jids, item, actor, node_obj)
+ if node_obj then
+ if node_obj.config["notify_"..kind] == false then
+ return;
+ end
end
- local handler = handlers[stanza.attr.type.."_"..action.name];
- if handler then
- handler(origin, stanza, action, service);
- return true;
+ if kind == "retract" then
+ kind = "items"; -- XEP-0060 signals retraction in an <items> container
end
-end
-function simple_broadcast(kind, node, jids, item, actor)
if item then
item = st.clone(item);
item.attr.xmlns = nil; -- Clear the pubsub namespace
- if expose_publisher and actor then
- item.attr.publisher = actor
+ if kind == "items" then
+ if node_obj and node_obj.config.include_payload == false then
+ item:maptags(function () return nil; end);
+ end
+ if expose_publisher and actor then
+ item.attr.publisher = actor
+ end
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);
+
+ if item then
+ message:add_child(item);
end
-end
-module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
-module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
+ local summary;
+ -- Compose a sensible textual representation of at least Atom payloads
+ if item and item.tags[1] then
+ local payload = item.tags[1];
+ summary = module:fire_event("pubsub-summary/"..payload.attr.xmlns, {
+ kind = kind, node = node, jids = jids, actor = actor, item = item, payload = payload,
+ });
+ 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);
- end
- end
+ for jid, options in pairs(jids) do
+ local new_stanza = st.clone(message);
+ if summary and type(options) == "table" and options["pubsub#include_body"] then
+ new_stanza:body(summary);
end
+ new_stanza.attr.to = jid;
+ module:send(new_stanza);
end
- for affiliation in pairs(service.config.capabilities) do
- if affiliation ~= "none" and affiliation ~= "owner" then
- module:add_feature(xmlns_pubsub.."#"..affiliation.."-affiliation");
- end
+end
+
+local max_max_items = module:get_option_number("pubsub_max_items", 256);
+function check_node_config(node, actor, new_config) -- luacheck: ignore 212/actor 212/node
+ if (new_config["max_items"] or 1) > max_max_items then
+ return false;
end
+ if new_config["access_model"] ~= "whitelist" and new_config["access_model"] ~= "open" then
+ return false;
+ end
+ return true;
end
-module:hook("host-disco-info-node", function (event)
- local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
- local ok, ret = service:get_nodes(stanza.attr.from);
- if not ok or not ret[node] then
- return;
+function is_item_stanza(item)
+ return st.is_stanza(item) and item.attr.xmlns == xmlns_pubsub and item.name == "item";
+end
+
+module:hook("pubsub-summary/http://www.w3.org/2005/Atom", function (event)
+ local payload = event.payload;
+ 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
- event.exists = true;
- reply:tag("identity", { category = "pubsub", type = "leaf" });
+ return summary;
end);
-module:hook("host-disco-items-node", function (event)
- local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
- local ok, ret = service:get_items(node, stanza.attr.from);
- if not ok then
- return;
- end
+module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
+module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
- for _, id in ipairs(ret) do
- reply:tag("item", { jid = module.host, name = id }):up();
+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
- event.exists = true;
+end
+
+module:hook("host-disco-info-node", function (event)
+ return lib_pubsub.handle_disco_info_node(event, service);
+end);
+
+module:hook("host-disco-items-node", function (event)
+ return lib_pubsub.handle_disco_items_node(event, service);
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
for node, node_obj in pairs(ret) do
- reply:tag("item", { jid = module.host, node = node, name = node_obj.config.name }):up();
+ reply:tag("item", { jid = module.host, node = node, name = node_obj.config.title }):up();
end
end);
@@ -132,6 +164,10 @@ local function get_affiliation(jid)
end
end
+function get_service()
+ return service;
+end
+
function set_service(new_service)
service = new_service;
module.environment.service = service;
@@ -150,82 +186,14 @@ function module.load()
if module.reloading then return; end
set_service(pubsub.new({
- capabilities = {
- none = {
- create = false;
- publish = false;
- retract = false;
- get_nodes = true;
-
- subscribe = true;
- unsubscribe = true;
- get_subscription = true;
- get_subscriptions = true;
- get_items = true;
-
- subscribe_other = false;
- unsubscribe_other = false;
- get_subscription_other = false;
- get_subscriptions_other = false;
-
- be_subscribed = true;
- be_unsubscribed = true;
-
- set_affiliation = false;
- };
- publisher = {
- create = false;
- publish = true;
- retract = true;
- get_nodes = true;
-
- subscribe = true;
- unsubscribe = true;
- get_subscription = true;
- get_subscriptions = true;
- get_items = true;
-
- subscribe_other = false;
- unsubscribe_other = false;
- get_subscription_other = false;
- get_subscriptions_other = false;
-
- be_subscribed = true;
- be_unsubscribed = true;
-
- set_affiliation = false;
- };
- owner = {
- create = true;
- publish = true;
- retract = true;
- delete = true;
- get_nodes = true;
- configure = true;
-
- subscribe = true;
- unsubscribe = true;
- get_subscription = true;
- get_subscriptions = true;
- get_items = true;
-
-
- subscribe_other = true;
- unsubscribe_other = true;
- get_subscription_other = true;
- get_subscriptions_other = true;
-
- be_subscribed = true;
- be_unsubscribed = true;
-
- set_affiliation = true;
- };
- };
-
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;
+ check_node_config = check_node_config;
get_affiliation = get_affiliation;
normalize_jid = jid_bare;