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-rw-r--r--plugins/muc/mod_muc.lua564
1 files changed, 337 insertions, 227 deletions
diff --git a/plugins/muc/mod_muc.lua b/plugins/muc/mod_muc.lua
index 0f58bfbc..fd240193 100644
--- a/plugins/muc/mod_muc.lua
+++ b/plugins/muc/mod_muc.lua
@@ -6,288 +6,398 @@
-- COPYING file in the source package for more information.
--
-local array = require "util.array";
+-- Exposed functions:
+--
+-- create_room(jid) -> room
+-- track_room(room)
+-- delete_room(room)
+-- forget_room(room)
+-- get_room_from_jid(jid) -> room
+-- each_room(local_only) -> () -> room
+-- shutdown_component()
if module:get_host_type() ~= "component" then
- error("MUC should be loaded as a component, please see http://prosody.im/doc/components", 0);
+ error("MUC should be loaded as a component, please see https://prosody.im/doc/components", 0);
end
-local muc_host = module:get_host();
-local muc_name = module:get_option_string("name", "Prosody Chatrooms");
-local restrict_room_creation = module:get_option("restrict_room_creation");
-if restrict_room_creation then
- if restrict_room_creation == true then
- restrict_room_creation = "admin";
- elseif restrict_room_creation ~= "admin" and restrict_room_creation ~= "local" then
- restrict_room_creation = nil;
- end
+local muclib = module:require "muc";
+room_mt = muclib.room_mt; -- Yes, global.
+
+local affiliation_notify = module:require "muc/affiliation_notify"; -- luacheck: ignore 211
+
+local name = module:require "muc/name";
+room_mt.get_name = name.get;
+room_mt.set_name = name.set;
+
+local description = module:require "muc/description";
+room_mt.get_description = description.get;
+room_mt.set_description = description.set;
+
+local language = module:require "muc/language";
+room_mt.get_language = language.get;
+room_mt.set_language = language.set;
+
+local hidden = module:require "muc/hidden";
+room_mt.get_hidden = hidden.get;
+room_mt.set_hidden = hidden.set;
+function room_mt:get_public()
+ return not self:get_hidden();
+end
+function room_mt:set_public(public)
+ return self:set_hidden(not public);
end
-local lock_rooms = module:get_option_boolean("muc_room_locking", false);
-local lock_room_timeout = module:get_option_number("muc_room_lock_timeout", 300);
-local muclib = module:require "muc";
-local muc_new_room = muclib.new_room;
+local password = module:require "muc/password";
+room_mt.get_password = password.get;
+room_mt.set_password = password.set;
+
+local members_only = module:require "muc/members_only";
+room_mt.get_members_only = members_only.get;
+room_mt.set_members_only = members_only.set;
+
+local moderated = module:require "muc/moderated";
+room_mt.get_moderated = moderated.get;
+room_mt.set_moderated = moderated.set;
+
+local persistent = module:require "muc/persistent";
+room_mt.get_persistent = persistent.get;
+room_mt.set_persistent = persistent.set;
+
+local subject = module:require "muc/subject";
+room_mt.get_changesubject = subject.get_changesubject;
+room_mt.set_changesubject = subject.set_changesubject;
+room_mt.get_subject = subject.get;
+room_mt.set_subject = subject.set;
+room_mt.send_subject = subject.send;
+
+local history = module:require "muc/history";
+room_mt.send_history = history.send;
+room_mt.get_historylength = history.get_length;
+room_mt.set_historylength = history.set_length;
+
local jid_split = require "util.jid".split;
local jid_bare = require "util.jid".bare;
local st = require "util.stanza";
-local uuid_gen = require "util.uuid".generate;
+local cache = require "util.cache";
local um_is_admin = require "core.usermanager".is_admin;
-local hosts = prosody.hosts;
-
-rooms = {};
-local rooms = rooms;
-local persistent_rooms_storage = module:open_store("persistent");
-local persistent_rooms, err = persistent_rooms_storage:get();
-if not persistent_rooms then
- if err then
- module:log("error", "Error loading list of persistent rooms from storage. Reload mod_muc or restart to recover.");
- error("Storage error: "..err);
- end
- module:log("debug", "No persistent rooms found in the database");
- persistent_rooms = {};
-end
-local room_configs = module:open_store("config");
-
--- Configurable options
-muclib.set_max_history_length(module:get_option_number("max_history_messages"));
module:depends("disco");
-module:add_identity("conference", "text", muc_name);
+module:add_identity("conference", "text", module:get_option_string("name", "Prosody Chatrooms"));
module:add_feature("http://jabber.org/protocol/muc");
+module:depends "muc_unique"
+module:require "muc/lock";
local function is_admin(jid)
return um_is_admin(jid, module.host);
end
-room_mt = muclib.room_mt; -- Yes, global.
-local _set_affiliation = room_mt.set_affiliation;
-local _get_affiliation = room_mt.get_affiliation;
-function muclib.room_mt:get_affiliation(jid)
- if is_admin(jid) then return "owner"; end
- return _get_affiliation(self, jid);
-end
-function muclib.room_mt:set_affiliation(actor, jid, affiliation, callback, reason)
- if affiliation ~= "owner" and is_admin(jid) then return nil, "modify", "not-acceptable"; end
- return _set_affiliation(self, actor, jid, affiliation, callback, reason);
+do -- Monkey patch to make server admins room owners
+ local _get_affiliation = room_mt.get_affiliation;
+ function room_mt:get_affiliation(jid)
+ if is_admin(jid) then return "owner"; end
+ return _get_affiliation(self, jid);
+ end
+
+ local _set_affiliation = room_mt.set_affiliation;
+ function room_mt:set_affiliation(actor, jid, affiliation, reason)
+ if affiliation ~= "owner" and is_admin(jid) then return nil, "modify", "not-acceptable"; end
+ return _set_affiliation(self, actor, jid, affiliation, reason);
+ end
end
-local function room_route_stanza(room, stanza) module:send(stanza); end
-local function room_save(room, forced)
+local persistent_rooms_storage = module:open_store("persistent");
+local persistent_rooms = module:open_store("persistent", "map");
+local room_configs = module:open_store("config");
+local room_state = module:open_store("state");
+
+local room_items_cache = {};
+
+local function room_save(room, forced, savestate)
local node = jid_split(room.jid);
- persistent_rooms[room.jid] = room._data.persistent;
- if room._data.persistent then
- local history = room._data.history;
- room._data.history = nil;
- local data = {
- jid = room.jid;
- _data = room._data;
- _affiliations = room._affiliations;
- };
- room_configs:set(node, data);
- room._data.history = history;
+ local is_persistent = persistent.get(room);
+ room_items_cache[room.jid] = room:get_public() and room:get_name() or nil;
+ if is_persistent or savestate then
+ persistent_rooms:set(nil, room.jid, true);
+ local data, state = room:freeze(savestate);
+ room_state:set(node, state);
+ return room_configs:set(node, data);
elseif forced then
- room_configs:set(node, nil);
- if not next(room._occupants) then -- Room empty
- rooms[room.jid] = nil;
- end
+ persistent_rooms:set(nil, room.jid, nil);
+ room_state:set(node, nil);
+ return room_configs:set(node, nil);
end
- if forced then persistent_rooms_storage:set(nil, persistent_rooms); end
end
-function create_room(jid, locked)
- local room = muc_new_room(jid);
- room.route_stanza = room_route_stanza;
- room.save = room_save;
- rooms[jid] = room;
- if locked then
- room.locked = true;
- if lock_room_timeout and lock_room_timeout > 0 then
- module:add_timer(lock_room_timeout, function ()
- if room.locked then
- room:destroy(); -- Not unlocked in time
- end
- end);
- end
+local max_rooms = module:get_option_number("muc_max_rooms");
+local max_live_rooms = module:get_option_number("muc_room_cache_size", 100);
+
+local eviction_hit_rate = module:measure("room_eviction", "rate");
+local rooms = cache.new(max_rooms or max_live_rooms, function (jid, room)
+ if max_rooms then
+ module:log("info", "Room limit of %d reached, no new rooms allowed");
+ return false;
end
- module:fire_event("muc-room-created", { room = room });
- return room;
+ module:log("debug", "Evicting room %s", jid);
+ eviction_hit_rate();
+ room_items_cache[room.jid] = room:get_public() and room:get_name() or nil;
+ local ok, err = room_save(room, nil, true); -- Force to disk
+ if not ok then
+ module:log("error", "Failed to swap inactive room %s to disk: %s", jid, err);
+ return false;
+ end
+end);
+
+-- Automatically destroy empty non-persistent rooms
+module:hook("muc-occupant-left",function(event)
+ local room = event.room
+ if not room:has_occupant() and not persistent.get(room) then -- empty, non-persistent room
+ module:fire_event("muc-room-destroyed", { room = room });
+ end
+end, -1);
+
+function track_room(room)
+ if rooms:set(room.jid, room) then
+ -- When room is created, over-ride 'save' method
+ room.save = room_save;
+ return room;
+ end
+ return false;
end
-local persistent_errors = false;
-for jid in pairs(persistent_rooms) do
+local function handle_broken_room(room, origin, stanza)
+ module:log("debug", "Returning error from broken room %s", room.jid);
+ origin.send(st.error_reply(stanza, "wait", "internal-server-error"));
+ return true;
+end
+
+local function restore_room(jid)
local node = jid_split(jid);
local data, err = room_configs:get(node);
if data then
- local room = create_room(jid);
- room._data = data._data;
- room._affiliations = data._affiliations;
- elseif not err then -- missing room data
- persistent_rooms[jid] = nil;
- module:log("error", "Missing data for room '%s', removing from persistent room list", jid);
- persistent_errors = true;
- else -- error
- module:log("error", "Error loading data for room '%s', locking it until service restart. Error was: %s", jid, err);
- local room = muc_new_room(jid);
- room.locked = true;
- room._affiliations = { [muc_host] = "owner" }; -- To prevent unlocking
- rooms[jid] = room;
+ module:log("debug", "Restoring room %s from storage", jid);
+ local state, s_err = room_state:get(node);
+ if not state and s_err then
+ module:log("debug", "Could not restore state of room %s: %s", jid, s_err);
+ end
+ local room = muclib.restore_room(data, state);
+ return track_room(room);
+ elseif err then
+ module:log("error", "Error restoring room %s from storage: %s", jid, err);
+ local room = muclib.new_room(jid, { locked = math.huge });
+ room.handle_normal_presence = handle_broken_room;
+ room.handle_first_presence = handle_broken_room;
+ return room;
end
end
-if persistent_errors then persistent_rooms_storage:set(nil, persistent_rooms); end
-local host_room = muc_new_room(muc_host);
-host_room.route_stanza = room_route_stanza;
-host_room.save = room_save;
+function forget_room(room)
+ module:log("debug", "Forgetting %s", room.jid);
+ rooms.save = nil;
+ rooms:set(room.jid, nil);
+end
-module:hook("host-disco-items", function(event)
- local reply = event.reply;
- module:log("debug", "host-disco-items called");
- for jid, room in pairs(rooms) do
- if not room:get_hidden() then
- reply:tag("item", {jid=jid, name=room:get_name()}):up();
- end
+function delete_room(room)
+ module:log("debug", "Deleting %s", room.jid);
+ room_configs:set(jid_split(room.jid), nil);
+ persistent_rooms:set(nil, room.jid, nil);
+ room_items_cache[room.jid] = nil;
+end
+
+function module.unload()
+ for room in rooms:values() do
+ room:save(nil, true);
+ forget_room(room);
end
-end);
+end
-local function handle_to_domain(event)
- local origin, stanza = event.origin, event.stanza;
- local type = stanza.attr.type;
- if type == "error" or type == "result" then return; end
- if stanza.name == "iq" and type == "get" then
- local xmlns = stanza.tags[1].attr.xmlns;
- local node = stanza.tags[1].attr.node;
- if xmlns == "http://jabber.org/protocol/muc#unique" then
- origin.send(st.reply(stanza):tag("unique", {xmlns = xmlns}):text(uuid_gen())); -- FIXME Random UUIDs can theoretically have collisions
- else
- origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc
- end
- else
- host_room:handle_stanza(origin, stanza);
- --origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "The muc server doesn't deal with messages and presence directed at it"));
+function get_room_from_jid(room_jid)
+ local room = rooms:get(room_jid);
+ if room then
+ rooms:set(room_jid, room); -- bump to top;
+ return room;
end
- return true;
+ return restore_room(room_jid);
end
-function stanza_handler(event)
- local origin, stanza = event.origin, event.stanza;
- local bare = jid_bare(stanza.attr.to);
- local room = rooms[bare];
- if not room then
- if stanza.name ~= "presence" or stanza.attr.type ~= nil then
- if stanza.attr.type ~= "error" then
- origin.send(st.error_reply(stanza, "cancel", "item-not-found"));
+function create_room(room_jid)
+ local exists = get_room_from_jid(room_jid);
+ if exists then
+ return nil, "room-exists";
+ end
+ local room = muclib.new_room(room_jid);
+ module:fire_event("muc-room-created", {
+ room = room;
+ });
+ return room;
+end
+
+function each_room(local_only)
+ if local_only then
+ return rooms:values();
+ end
+ return coroutine.wrap(function ()
+ local seen = {}; -- Don't iterate over persistent rooms twice
+ for room in rooms:values() do
+ coroutine.yield(room);
+ seen[room.jid] = true;
+ end
+ local all_persistent_rooms, err = persistent_rooms_storage:get(nil);
+ if not all_persistent_rooms then
+ if err then
+ module:log("error", "Error loading list of persistent rooms, only rooms live in memory were iterated over");
+ module:log("debug", "%s", debug.traceback(err));
end
- return true;
+ return nil;
end
- if not(restrict_room_creation) or
- is_admin(stanza.attr.from) or
- (restrict_room_creation == "local" and select(2, jid_split(stanza.attr.from)) == module.host:gsub("^[^%.]+%.", "")) then
- room = create_room(bare, lock_rooms);
+ for room_jid in pairs(all_persistent_rooms) do
+ if not seen[room_jid] then
+ local room = restore_room(room_jid);
+ if room then
+ coroutine.yield(room);
+ else
+ module:log("error", "Missing data for room '%s', omitting from iteration", room_jid);
+ end
+ end
end
- end
- if room then
- room:handle_stanza(origin, stanza);
- if not next(room._occupants) and not persistent_rooms[room.jid] then -- empty, non-persistent room
- module:fire_event("muc-room-destroyed", { room = room });
- rooms[bare] = nil; -- discard room
+ end);
+end
+
+module:hook("host-disco-items", function(event)
+ local reply = event.reply;
+ module:log("debug", "host-disco-items called");
+ if next(room_items_cache) ~= nil then
+ for jid, room_name in pairs(room_items_cache) do
+ reply:tag("item", { jid = jid, name = room_name }):up();
end
else
- origin.send(st.error_reply(stanza, "cancel", "not-allowed"));
+ for room in each_room() do
+ if not room:get_hidden() then
+ local jid, room_name = room.jid, room:get_name();
+ room_items_cache[jid] = room_name;
+ reply:tag("item", { jid = jid, name = room_name }):up();
+ end
+ end
end
- return true;
-end
-module:hook("iq/bare", stanza_handler, -1);
-module:hook("message/bare", stanza_handler, -1);
-module:hook("presence/bare", stanza_handler, -1);
-module:hook("iq/full", stanza_handler, -1);
-module:hook("message/full", stanza_handler, -1);
-module:hook("presence/full", stanza_handler, -1);
-module:hook("iq/host", handle_to_domain, -1);
-module:hook("message/host", handle_to_domain, -1);
-module:hook("presence/host", handle_to_domain, -1);
-
-hosts[module.host].send = function(stanza) -- FIXME do a generic fix
- if stanza.attr.type == "result" or stanza.attr.type == "error" then
- module:send(stanza);
- else error("component.send only supports result and error stanzas at the moment"); end
-end
+end);
-hosts[module:get_host()].muc = { rooms = rooms };
+module:hook("muc-room-pre-create", function(event)
+ local origin, stanza = event.origin, event.stanza;
+ if not track_room(event.room) then
+ origin.send(st.error_reply(stanza, "wait", "resource-constraint"));
+ return true;
+ end
+end, -1000);
-local saved = false;
-module.save = function()
- saved = true;
- return {rooms = rooms};
-end
-module.restore = function(data)
- for jid, oldroom in pairs(data.rooms or {}) do
- local room = create_room(jid);
- room._jid_nick = oldroom._jid_nick;
- room._occupants = oldroom._occupants;
- room._data = oldroom._data;
- room._affiliations = oldroom._affiliations;
+module:hook("muc-room-destroyed",function(event)
+ local room = event.room;
+ forget_room(room);
+ delete_room(room);
+end);
+
+do
+ local restrict_room_creation = module:get_option("restrict_room_creation");
+ if restrict_room_creation == true then
+ restrict_room_creation = "admin";
+ end
+ if restrict_room_creation then
+ local host_suffix = module.host:gsub("^[^%.]+%.", "");
+ module:hook("muc-room-pre-create", function(event)
+ local origin, stanza = event.origin, event.stanza;
+ local user_jid = stanza.attr.from;
+ if not is_admin(user_jid) and not (
+ restrict_room_creation == "local" and
+ select(2, jid_split(user_jid)) == host_suffix
+ ) then
+ origin.send(st.error_reply(stanza, "cancel", "not-allowed", "Room creation is restricted"));
+ return true;
+ end
+ end);
end
- hosts[module:get_host()].muc = { rooms = rooms };
end
-function shutdown_room(room, stanza)
- for nick, occupant in pairs(room._occupants) do
- stanza.attr.from = nick;
- for jid in pairs(occupant.sessions) do
- stanza.attr.to = jid;
- room:_route_stanza(stanza);
- room._jid_nick[jid] = nil;
+for event_name, method in pairs {
+ -- Normal room interactions
+ ["iq-get/bare/http://jabber.org/protocol/disco#info:query"] = "handle_disco_info_get_query" ;
+ ["iq-get/bare/http://jabber.org/protocol/disco#items:query"] = "handle_disco_items_get_query" ;
+ ["iq-set/bare/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_set_command" ;
+ ["iq-get/bare/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_get_command" ;
+ ["iq-set/bare/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_set_to_room" ;
+ ["iq-get/bare/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_get_to_room" ;
+ ["message/bare"] = "handle_message_to_room" ;
+ ["presence/bare"] = "handle_presence_to_room" ;
+ -- Host room
+ ["iq-get/host/http://jabber.org/protocol/disco#info:query"] = "handle_disco_info_get_query" ;
+ ["iq-get/host/http://jabber.org/protocol/disco#items:query"] = "handle_disco_items_get_query" ;
+ ["iq-set/host/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_set_command" ;
+ ["iq-get/host/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_get_command" ;
+ ["iq-set/host/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_set_to_room" ;
+ ["iq-get/host/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_get_to_room" ;
+ ["message/host"] = "handle_message_to_room" ;
+ ["presence/host"] = "handle_presence_to_room" ;
+ -- Direct to occupant (normal rooms and host room)
+ ["presence/full"] = "handle_presence_to_occupant" ;
+ ["iq/full"] = "handle_iq_to_occupant" ;
+ ["message/full"] = "handle_message_to_occupant" ;
+} do
+ module:hook(event_name, function (event)
+ local origin, stanza = event.origin, event.stanza;
+ local room_jid = jid_bare(stanza.attr.to);
+ local room = get_room_from_jid(room_jid);
+ if room == nil then
+ -- Watch presence to create rooms
+ if stanza.attr.type == nil and stanza.name == "presence" then
+ room = muclib.new_room(room_jid);
+ return room:handle_first_presence(origin, stanza);
+ elseif stanza.attr.type ~= "error" then
+ origin.send(st.error_reply(stanza, "cancel", "item-not-found"));
+ return true;
+ else
+ return;
+ end
end
- room._occupants[nick] = nil;
- end
+ return room[method](room, origin, stanza);
+ end, -2)
end
+
function shutdown_component()
- if not saved then
- local stanza = st.presence({type = "unavailable"})
- :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"})
- :tag("item", { affiliation='none', role='none' }):up()
- :tag("status", { code = "332"}):up();
- for roomjid, room in pairs(rooms) do
- shutdown_room(room, stanza);
- end
- shutdown_room(host_room, stanza);
+ for room in each_room(true) do
+ room:save(nil, true);
end
end
-module.unload = shutdown_component;
-module:hook_global("server-stopping", shutdown_component);
-
--- Ad-hoc commands
-module:depends("adhoc")
-local t_concat = table.concat;
-local keys = require "util.iterators".keys;
-local adhoc_new = module:require "adhoc".new;
-local adhoc_initial = require "util.adhoc".new_initial_data_form;
-local dataforms_new = require "util.dataforms".new;
-
-local destroy_rooms_layout = dataforms_new {
- title = "Destroy rooms";
- instructions = "Select the rooms to destroy";
-
- { name = "FORM_TYPE", type = "hidden", value = "http://prosody.im/protocol/muc#destroy" };
- { name = "rooms", type = "list-multi", required = true, label = "Rooms to destroy:"};
-};
-
-local destroy_rooms_handler = adhoc_initial(destroy_rooms_layout, function()
- return { rooms = array.collect(keys(rooms)):sort() };
-end, function(fields, errors)
- if errors then
- local errmsg = {};
- for name, err in pairs(errors) do
- errmsg[#errmsg + 1] = name .. ": " .. err;
+module:hook_global("server-stopping", shutdown_component, -300);
+
+do -- Ad-hoc commands
+ module:depends "adhoc";
+ local t_concat = table.concat;
+ local adhoc_new = module:require "adhoc".new;
+ local adhoc_initial = require "util.adhoc".new_initial_data_form;
+ local array = require "util.array";
+ local dataforms_new = require "util.dataforms".new;
+
+ local destroy_rooms_layout = dataforms_new {
+ title = "Destroy rooms";
+ instructions = "Select the rooms to destroy";
+
+ { name = "FORM_TYPE", type = "hidden", value = "http://prosody.im/protocol/muc#destroy" };
+ { name = "rooms", type = "list-multi", required = true, label = "Rooms to destroy:"};
+ };
+
+ local destroy_rooms_handler = adhoc_initial(destroy_rooms_layout, function()
+ return { rooms = array.collect(each_room()):pluck("jid"):sort(); };
+ end, function(fields, errors)
+ if errors then
+ local errmsg = {};
+ for field, err in pairs(errors) do
+ errmsg[#errmsg + 1] = field .. ": " .. err;
+ end
+ return { status = "completed", error = { message = t_concat(errmsg, "\n") } };
end
- return { status = "completed", error = { message = t_concat(errmsg, "\n") } };
- end
- for _, room in ipairs(fields.rooms) do
- rooms[room]:destroy();
- rooms[room] = nil;
- end
- return { status = "completed", info = "The following rooms were destroyed:\n"..t_concat(fields.rooms, "\n") };
-end);
-local destroy_rooms_desc = adhoc_new("Destroy Rooms", "http://prosody.im/protocol/muc#destroy", destroy_rooms_handler, "admin");
+ for _, room in ipairs(fields.rooms) do
+ get_room_from_jid(room):destroy();
+ end
+ return { status = "completed", info = "The following rooms were destroyed:\n"..t_concat(fields.rooms, "\n") };
+ end);
+ local destroy_rooms_desc = adhoc_new("Destroy Rooms", "http://prosody.im/protocol/muc#destroy", destroy_rooms_handler, "admin");
-module:provides("adhoc", destroy_rooms_desc);
+ module:provides("adhoc", destroy_rooms_desc);
+end