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-rw-r--r--core/moduleapi.lua32
-rw-r--r--plugins/mod_pep_plus.lua368
-rw-r--r--plugins/mod_pubsub/mod_pubsub.lua2
-rw-r--r--plugins/mod_pubsub/pubsub.lib.lua4
-rw-r--r--util/indexedbheap.lua153
-rw-r--r--util/pubsub.lua9
-rw-r--r--util/timer.lua62
7 files changed, 619 insertions, 11 deletions
diff --git a/core/moduleapi.lua b/core/moduleapi.lua
index 65e00d41..5a24f69c 100644
--- a/core/moduleapi.lua
+++ b/core/moduleapi.lua
@@ -16,8 +16,10 @@ local timer = require "util.timer";
local t_insert, t_remove, t_concat = table.insert, table.remove, table.concat;
local error, setmetatable, type = error, setmetatable, type;
-local ipairs, pairs, select, unpack = ipairs, pairs, select, unpack;
+local ipairs, pairs, select = ipairs, pairs, select;
local tonumber, tostring = tonumber, tostring;
+local pack = table.pack or function(...) return {n=select("#",...), ...}; end -- table.pack is only in 5.2
+local unpack = table.unpack or unpack; -- renamed in 5.2
local prosody = prosody;
local hosts = prosody.hosts;
@@ -347,11 +349,29 @@ function api:send(stanza)
return core_post_stanza(hosts[self.host], stanza);
end
-function api:add_timer(delay, callback)
- return timer.add_task(delay, function (t)
- if self.loaded == false then return; end
- return callback(t);
- end);
+local timer_methods = { }
+local timer_mt = {
+ __index = timer_methods;
+}
+function timer_methods:stop( )
+ timer.stop(self.id);
+end
+timer_methods.disarm = timer_methods.stop
+function timer_methods:reschedule(delay)
+ timer.reschedule(self.id, delay)
+end
+
+local function timer_callback(now, id, t)
+ if t.module_env.loaded == false then return; end
+ return t.callback(now, unpack(t, 1, t.n));
+end
+
+function api:add_timer(delay, callback, ...)
+ local t = pack(...)
+ t.module_env = self;
+ t.callback = callback;
+ t.id = timer.add_task(delay, timer_callback, t);
+ return setmetatable(t, timer_mt);
end
local path_sep = package.config:sub(1,1);
diff --git a/plugins/mod_pep_plus.lua b/plugins/mod_pep_plus.lua
new file mode 100644
index 00000000..4a74e437
--- /dev/null
+++ b/plugins/mod_pep_plus.lua
@@ -0,0 +1,368 @@
+local pubsub = require "util.pubsub";
+local jid_bare = require "util.jid".bare;
+local jid_split = require "util.jid".split;
+local set_new = require "util.set".new;
+local st = require "util.stanza";
+local calculate_hash = require "util.caps".calculate_hash;
+local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed;
+
+local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
+local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event";
+local xmlns_pubsub_owner = "http://jabber.org/protocol/pubsub#owner";
+
+local lib_pubsub = module:require "pubsub";
+local handlers = lib_pubsub.handlers;
+local pubsub_error_reply = lib_pubsub.pubsub_error_reply;
+
+local services = {};
+local recipients = {};
+local hash_map = {};
+
+function module.save()
+ return { services = services };
+end
+
+function module.restore(data)
+ services = data.services;
+end
+
+local function subscription_presence(user_bare, recipient)
+ local recipient_bare = jid_bare(recipient);
+ if (recipient_bare == user_bare) then return true; end
+ local username, host = jid_split(user_bare);
+ return is_contact_subscribed(username, host, recipient_bare);
+end
+
+local function get_broadcaster(name)
+ local function simple_broadcast(kind, node, jids, item)
+ if item then
+ item = st.clone(item);
+ item.attr.xmlns = nil; -- Clear the pubsub namespace
+ end
+ local message = st.message({ from = name, type = "headline" })
+ :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 from %s: %s", jid, name, tostring(item));
+ message.attr.to = jid;
+ module:send(message);
+ end
+ end
+ return simple_broadcast;
+end
+
+local function get_pep_service(name)
+ if services[name] then
+ return services[name];
+ end
+ services[name] = pubsub.new({
+ capabilities = {
+ none = {
+ create = false;
+ publish = false;
+ retract = false;
+ get_nodes = false;
+
+ subscribe = false;
+ unsubscribe = false;
+ get_subscription = false;
+ get_subscriptions = false;
+ get_items = false;
+
+ subscribe_other = false;
+ unsubscribe_other = false;
+ get_subscription_other = false;
+ get_subscriptions_other = false;
+
+ be_subscribed = true;
+ be_unsubscribed = true;
+
+ set_affiliation = false;
+ };
+ subscriber = {
+ 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;
+
+ 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 = true;
+ autocreate_on_subscribe = true;
+
+ broadcaster = get_broadcaster(name);
+ get_affiliation = function (jid)
+ if jid_bare(jid) == name then
+ return "owner";
+ elseif subscription_presence(name, jid) then
+ return "subscriber";
+ end
+ end;
+
+ normalize_jid = jid_bare;
+ });
+ return services[name];
+end
+
+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
+ return origin.send(st.error_reply(stanza, "cancel", "bad-request"));
+ end
+ local service_name = stanza.attr.to or origin.username.."@"..origin.host
+ local service = get_pep_service(service_name);
+ local handler = handlers[stanza.attr.type.."_"..action.name];
+ if handler then
+ handler(origin, stanza, action, service);
+ return true;
+ end
+end
+
+module:hook("iq/bare/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
+module:hook("iq/bare/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
+
+module:add_identity("pubsub", "pep", module:get_option_string("name", "Prosody"));
+module:add_feature("http://jabber.org/protocol/pubsub#publish");
+
+local function get_caps_hash_from_presence(stanza, current)
+ local t = stanza.attr.type;
+ if not t then
+ local child = stanza:get_child("c", "http://jabber.org/protocol/caps");
+ if child then
+ local attr = child.attr;
+ if attr.hash then -- new caps
+ if attr.hash == 'sha-1' and attr.node and attr.ver then
+ return attr.ver, attr.node.."#"..attr.ver;
+ end
+ else -- legacy caps
+ if attr.node and attr.ver then
+ return attr.node.."#"..attr.ver.."#"..(attr.ext or ""), attr.node.."#"..attr.ver;
+ end
+ end
+ end
+ return; -- no or bad caps
+ elseif t == "unavailable" or t == "error" then
+ return;
+ end
+ return current; -- no caps, could mean caps optimization, so return current
+end
+
+local function resend_last_item(jid, node, service)
+ local ok, items = service:get_items(node, jid);
+ if not ok then return; end
+ for i, id in ipairs(items) do
+ service.config.broadcaster("items", node, { [jid] = true }, items[id]);
+ end
+end
+
+local function update_subscriptions(recipient, service_name, nodes)
+ local service = get_pep_service(service_name);
+
+ recipients[service_name] = recipients[service_name] or {};
+ nodes = nodes or set_new();
+ local old = recipients[service_name][recipient];
+
+ if old and type(old) == table then
+ for node in pairs((old - nodes):items()) do
+ service:remove_subscription(node, recipient, recipient);
+ end
+ end
+
+ for node in nodes:items() do
+ service:add_subscription(node, recipient, recipient);
+ resend_last_item(recipient, node, service);
+ end
+ recipients[service_name][recipient] = nodes;
+end
+
+module:hook("presence/bare", function(event)
+ -- inbound presence to bare JID recieved
+ local origin, stanza = event.origin, event.stanza;
+ local user = stanza.attr.to or (origin.username..'@'..origin.host);
+ local t = stanza.attr.type;
+ local self = not stanza.attr.to;
+ local service = get_pep_service(user);
+
+ if not t then -- available presence
+ if self or subscription_presence(user, stanza.attr.from) then
+ local recipient = stanza.attr.from;
+ local current = recipients[user] and recipients[user][recipient];
+ local hash, query_node = get_caps_hash_from_presence(stanza, current);
+ if current == hash or (current and current == hash_map[hash]) then return; end
+ if not hash then
+ update_subscriptions(recipient, user);
+ else
+ recipients[user] = recipients[user] or {};
+ if hash_map[hash] then
+ update_subscriptions(recipient, user, hash_map[hash]);
+ else
+ recipients[user][recipient] = hash;
+ local from_bare = origin.type == "c2s" and origin.username.."@"..origin.host;
+ if self or origin.type ~= "c2s" or (recipients[from_bare] and recipients[from_bare][origin.full_jid]) ~= hash then
+ -- COMPAT from ~= stanza.attr.to because OneTeam can't deal with missing from attribute
+ origin.send(
+ st.stanza("iq", {from=user, to=stanza.attr.from, id="disco", type="get"})
+ :tag("query", {xmlns = "http://jabber.org/protocol/disco#info", node = query_node})
+ );
+ end
+ end
+ end
+ end
+ elseif t == "unavailable" then
+ update_subscriptions(stanza.attr.from, user);
+ elseif not self and t == "unsubscribe" then
+ local from = jid_bare(stanza.attr.from);
+ local subscriptions = recipients[user];
+ if subscriptions then
+ for subscriber in pairs(subscriptions) do
+ if jid_bare(subscriber) == from then
+ update_subscriptions(subscriber, user);
+ end
+ end
+ end
+ end
+end, 10);
+
+module:hook("iq-result/bare/disco", function(event)
+ local origin, stanza = event.origin, event.stanza;
+ local disco = stanza:get_child("query", "http://jabber.org/protocol/disco#info");
+ if not disco then
+ return;
+ end
+
+ -- Process disco response
+ local self = not stanza.attr.to;
+ local user = stanza.attr.to or (origin.username..'@'..origin.host);
+ local contact = stanza.attr.from;
+ local current = recipients[user] and recipients[user][contact];
+ if type(current) ~= "string" then return; end -- check if waiting for recipient's response
+ local ver = current;
+ if not string.find(current, "#") then
+ ver = calculate_hash(disco.tags); -- calculate hash
+ end
+ local notify = set_new();
+ for _, feature in pairs(disco.tags) do
+ if feature.name == "feature" and feature.attr.var then
+ local nfeature = feature.attr.var:match("^(.*)%+notify$");
+ if nfeature then notify:add(nfeature); end
+ end
+ end
+ hash_map[ver] = notify; -- update hash map
+ if self then
+ for jid, item in pairs(origin.roster) do -- for all interested contacts
+ if item.subscription == "both" or item.subscription == "from" then
+ if not recipients[jid] then recipients[jid] = {}; end
+ update_subscriptions(contact, jid, notify);
+ end
+ end
+ end
+ update_subscriptions(contact, user, notify);
+end);
+
+module:hook("account-disco-info-node", function(event)
+ local reply, stanza, origin = event.reply, event.stanza, event.origin;
+ local service_name = stanza.attr.to or origin.username.."@"..origin.host
+ local service = get_pep_service(service_name);
+ local node = event.node;
+ local ok = service:get_items(node, jid_bare(stanza.attr.from) or true);
+ if not ok then return; end
+ event.exists = true;
+ reply:tag('identity', {category='pubsub', type='leaf'}):up();
+end);
+
+module:hook("account-disco-info", function(event)
+ local reply = event.reply;
+ reply:tag('identity', {category='pubsub', type='pep'}):up();
+ reply:tag('feature', {var='http://jabber.org/protocol/pubsub#publish'}):up();
+end);
+
+module:hook("account-disco-items-node", function(event)
+ local reply, stanza, origin = event.reply, event.stanza, event.origin;
+ local node = event.node;
+ local service_name = stanza.attr.to or origin.username.."@"..origin.host
+ local service = get_pep_service(service_name);
+ local ok, ret = service:get_items(node, jid_bare(stanza.attr.from) or true);
+ if not ok then return; end
+ event.exists = true;
+ for _, id in ipairs(ret) do
+ reply:tag("item", { jid = service_name, name = id }):up();
+ end
+end);
+
+module:hook("account-disco-items", function(event)
+ local reply, stanza, origin = event.reply, event.stanza, event.origin;
+
+ local service_name = reply.attr.from or origin.username.."@"..origin.host
+ local service = get_pep_service(service_name);
+ local ok, ret = service:get_nodes(jid_bare(stanza.attr.from));
+ if not ok then return; end
+
+ for node, node_obj in pairs(ret) do
+ reply:tag("item", { jid = service_name, node = node, name = node_obj.config.name }):up();
+ end
+end);
diff --git a/plugins/mod_pubsub/mod_pubsub.lua b/plugins/mod_pubsub/mod_pubsub.lua
index 81a66f8b..2868d409 100644
--- a/plugins/mod_pubsub/mod_pubsub.lua
+++ b/plugins/mod_pubsub/mod_pubsub.lua
@@ -103,7 +103,7 @@ module:hook("host-disco-items-node", function (event)
return origin.send(pubsub_error_reply(stanza, ret));
end
- for id, item in pairs(ret) do
+ for _, id in ipairs(ret) do
reply:tag("item", { jid = module.host, name = id }):up();
end
event.exists = true;
diff --git a/plugins/mod_pubsub/pubsub.lib.lua b/plugins/mod_pubsub/pubsub.lib.lua
index 2b015e34..4e9acd68 100644
--- a/plugins/mod_pubsub/pubsub.lib.lua
+++ b/plugins/mod_pubsub/pubsub.lib.lua
@@ -42,8 +42,8 @@ function handlers.get_items(origin, stanza, items, service)
end
local data = st.stanza("items", { node = node });
- for _, entry in pairs(results) do
- data:add_child(entry);
+ for _, id in ipairs(results) do
+ data:add_child(results[id]);
end
local reply;
if data then
diff --git a/util/indexedbheap.lua b/util/indexedbheap.lua
new file mode 100644
index 00000000..3cb03037
--- /dev/null
+++ b/util/indexedbheap.lua
@@ -0,0 +1,153 @@
+
+local setmetatable = setmetatable;
+local math_floor = math.floor;
+local t_remove = table.remove;
+
+local function _heap_insert(self, item, sync, item2, index)
+ local pos = #self + 1;
+ while true do
+ local half_pos = math_floor(pos / 2);
+ if half_pos == 0 or item > self[half_pos] then break; end
+ self[pos] = self[half_pos];
+ sync[pos] = sync[half_pos];
+ index[sync[pos]] = pos;
+ pos = half_pos;
+ end
+ self[pos] = item;
+ sync[pos] = item2;
+ index[item2] = pos;
+end
+
+local function _percolate_up(self, k, sync, index)
+ local tmp = self[k];
+ local tmp_sync = sync[k];
+ while k ~= 1 do
+ local parent = math_floor(k/2);
+ if tmp < self[parent] then break; end
+ self[k] = self[parent];
+ sync[k] = sync[parent];
+ index[sync[k]] = k;
+ k = parent;
+ end
+ self[k] = tmp;
+ sync[k] = tmp_sync;
+ index[tmp_sync] = k;
+ return k;
+end
+
+local function _percolate_down(self, k, sync, index)
+ local tmp = self[k];
+ local tmp_sync = sync[k];
+ local size = #self;
+ local child = 2*k;
+ while 2*k <= size do
+ if child ~= size and self[child] > self[child + 1] then
+ child = child + 1;
+ end
+ if tmp > self[child] then
+ self[k] = self[child];
+ sync[k] = sync[child];
+ index[sync[k]] = k;
+ else
+ break;
+ end
+
+ k = child;
+ child = 2*k;
+ end
+ self[k] = tmp;
+ sync[k] = tmp_sync;
+ index[tmp_sync] = k;
+ return k;
+end
+
+local function _heap_pop(self, sync, index)
+ local size = #self;
+ if size == 0 then return nil; end
+
+ local result = self[1];
+ local result_sync = sync[1];
+ index[result_sync] = nil;
+ if size == 1 then
+ self[1] = nil;
+ sync[1] = nil;
+ return result, result_sync;
+ end
+ self[1] = t_remove(self);
+ sync[1] = t_remove(sync);
+ index[sync[1]] = 1;
+
+ _percolate_down(self, 1, sync, index);
+
+ return result, result_sync;
+end
+
+local indexed_heap = {};
+
+function indexed_heap:insert(item, priority, id)
+ if id == nil then
+ id = self.current_id;
+ self.current_id = id + 1;
+ end
+ self.items[id] = item;
+ _heap_insert(self.priorities, priority, self.ids, id, self.index);
+ return id;
+end
+function indexed_heap:pop()
+ local priority, id = _heap_pop(self.priorities, self.ids, self.index);
+ if id then
+ local item = self.items[id];
+ self.items[id] = nil;
+ return priority, item, id;
+ end
+end
+function indexed_heap:peek()
+ return self.priorities[1];
+end
+function indexed_heap:reprioritize(id, priority)
+ local k = self.index[id];
+ if k == nil then return; end
+ self.priorities[k] = priority;
+
+ k = _percolate_up(self.priorities, k, self.ids, self.index);
+ k = _percolate_down(self.priorities, k, self.ids, self.index);
+end
+function indexed_heap:remove_index(k)
+ local size = #self.priorities;
+
+ local result = self.priorities[k];
+ local result_sync = self.ids[k];
+ local item = self.items[result_sync];
+ if result == nil then return; end
+ self.index[result_sync] = nil;
+ self.items[result_sync] = nil;
+
+ self.priorities[k] = self.priorities[size];
+ self.ids[k] = self.ids[size];
+ self.index[self.ids[k]] = k;
+ t_remove(self.priorities);
+ t_remove(self.ids);
+
+ k = _percolate_up(self.priorities, k, self.ids, self.index);
+ k = _percolate_down(self.priorities, k, self.ids, self.index);
+
+ return result, item, result_sync;
+end
+function indexed_heap:remove(id)
+ return self:remove_index(self.index[id]);
+end
+
+local mt = { __index = indexed_heap };
+
+local _M = {
+ create = function()
+ return setmetatable({
+ ids = {}; -- heap of ids, sync'd with priorities
+ items = {}; -- map id->items
+ priorities = {}; -- heap of priorities
+ index = {}; -- map of id->index of id in ids
+ current_id = 1.5
+ }, mt);
+ end
+};
+return _M;
diff --git a/util/pubsub.lua b/util/pubsub.lua
index 0dfd196b..e0d428c0 100644
--- a/util/pubsub.lua
+++ b/util/pubsub.lua
@@ -258,6 +258,7 @@ function service:publish(node, actor, id, item)
end
node_obj = self.nodes[node];
end
+ node_obj.data[#node_obj.data + 1] = id;
node_obj.data[id] = item;
self.events.fire_event("item-published", { node = node, actor = actor, id = id, item = item });
self.config.broadcaster("items", node, node_obj.subscribers, item);
@@ -275,6 +276,12 @@ function service:retract(node, actor, id, retract)
return false, "item-not-found";
end
node_obj.data[id] = nil;
+ for i, _id in ipairs(node_obj.data) do
+ if id == _id then
+ table.remove(node_obj, i);
+ break;
+ end
+ end
if retract then
self.config.broadcaster("items", node, node_obj.subscribers, retract);
end
@@ -309,7 +316,7 @@ function service:get_items(node, actor, id)
return false, "item-not-found";
end
if id then -- Restrict results to a single specific item
- return true, { [id] = node_obj.data[id] };
+ return true, { id, [id] = node_obj.data[id] };
else
return true, node_obj.data;
end
diff --git a/util/timer.lua b/util/timer.lua
index 0e10e144..23bd6a37 100644
--- a/util/timer.lua
+++ b/util/timer.lua
@@ -6,6 +6,8 @@
-- COPYING file in the source package for more information.
--
+local indexedbheap = require "util.indexedbheap";
+local log = require "util.logger".init("timer");
local server = require "net.server";
local math_min = math.min
local math_huge = math.huge
@@ -13,6 +15,9 @@ local get_time = require "socket".gettime;
local t_insert = table.insert;
local pairs = pairs;
local type = type;
+local debug_traceback = debug.traceback;
+local tostring = tostring;
+local xpcall = xpcall;
local data = {};
local new_data = {};
@@ -78,6 +83,61 @@ else
end
end
-add_task = _add_task;
+--add_task = _add_task;
+
+local h = indexedbheap.create();
+local params = {};
+local next_time = nil;
+local _id, _callback, _now, _param;
+local function _call() return _callback(_now, _id, _param); end
+local function _traceback_handler(err) log("error", "Traceback[timer]: %s", debug_traceback(tostring(err), 2)); end
+local function _on_timer(now)
+ local peek;
+ while true do
+ peek = h:peek();
+ if peek == nil or peek > now then break; end
+ local _;
+ _, _callback, _id = h:pop();
+ _now = now;
+ _param = params[_id];
+ params[_id] = nil;
+ --item(now, id, _param); -- FIXME pcall
+ local success, err = xpcall(_call, _traceback_handler);
+ if success and type(err) == "number" then
+ h:insert(_callback, err + now, _id); -- re-add
+ params[_id] = _param;
+ end
+ end
+ next_time = peek;
+ if peek ~= nil then
+ return peek - now;
+ end
+end
+function add_task(delay, callback, param)
+ local current_time = get_time();
+ local event_time = current_time + delay;
+
+ local id = h:insert(callback, event_time);
+ params[id] = param;
+ if next_time == nil or event_time < next_time then
+ next_time = event_time;
+ _add_task(next_time - current_time, _on_timer);
+ end
+ return id;
+end
+function stop(id)
+ params[id] = nil;
+ return h:remove(id);
+end
+function reschedule(id, delay)
+ local current_time = get_time();
+ local event_time = current_time + delay;
+ h:reprioritize(id, delay);
+ if next_time == nil or event_time < next_time then
+ next_time = event_time;
+ _add_task(next_time - current_time, _on_timer);
+ end
+ return id;
+end
return _M;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 22:12:58 +0000