diff options
| -rw-r--r-- | plugins/mod_muc.lua | 432 |
1 files changed, 36 insertions, 396 deletions
diff --git a/plugins/mod_muc.lua b/plugins/mod_muc.lua index a7b8db5f..4f695b17 100644 --- a/plugins/mod_muc.lua +++ b/plugins/mod_muc.lua @@ -1,401 +1,37 @@ --- Prosody IM v0.4 --- Copyright (C) 2008-2009 Matthew Wild --- Copyright (C) 2008-2009 Waqas Hussain --- --- This project is MIT/X11 licensed. Please see the --- COPYING file in the source package for more information. --- - -local datamanager = require "util.datamanager"; -local datetime = require "util.datetime"; - -local register_component = require "core.componentmanager".register_component; -local deregister_component = require "core.componentmanager".deregister_component; -local jid_split = require "util.jid".split; -local jid_bare = require "util.jid".bare; -local st = require "util.stanza"; -local log = require "util.logger".init("mod_muc"); -local multitable_new = require "util.multitable".new; -local t_insert, t_remove = table.insert, table.remove; if module:get_host_type() ~= "component" then error("MUC should be loaded as a component, please see http://prosody.im/doc/components", 0); end -local muc_domain = module:get_host(); +local muc_host = module:get_host(); local muc_name = "Chatrooms"; local history_length = 20; --- room_name -> room - -- occupant_room_nick -> data - -- affiliation = ... - -- role - -- jid = occupant's real jid -local rooms = multitable_new(); - -local jid_nick = multitable_new(); -- real jid -> room's jid -> room nick - --- room_name -> info - -- name - the room's friendly name - -- subject - the room's subject - -- non-anonymous = true|nil - -- persistent = true|nil - -- history = {preserialized stanzas} -local rooms_info = multitable_new(); - -local persist_list = datamanager.load(nil, muc_domain, 'room_list') or {}; -for room in pairs(persist_list) do - rooms_info:set(room, datamanager.store(room, muc_domain, 'rooms') or nil); -end +local muc_new_room = require "util.muc".new_room; +local register_component = require "core.componentmanager".register_component; +local deregister_component = require "core.componentmanager".deregister_component; +local jid_split = require "util.jid".split; +local st = require "util.stanza"; +local rooms = {}; local component; +local host_room = muc_new_room(muc_host); +host_room.route_stanza = function(room, stanza) core_post_stanza(component, stanza); end; -function filter_xmlns_from_array(array, filters) - local count = 0; - for i=#array,1,-1 do - local attr = array[i].attr; - if filters[attr and attr.xmlns] then - t_remove(array, i); - count = count + 1; - end - end - return count; -end -function filter_xmlns_from_stanza(stanza, filters) - if filters then - if filter_xmlns_from_array(stanza.tags, filters) ~= 0 then - return stanza, filter_xmlns_from_array(stanza, filters); - end - end - return stanza, 0; -end -local presence_filters = {["http://jabber.org/protocol/muc"]=true;["http://jabber.org/protocol/muc#user"]=true}; -function get_filtered_presence(stanza) - return filter_xmlns_from_stanza(st.clone(stanza), presence_filters); -end -local kickable_error_conditions = { - ["gone"] = true; - ["internal-server-error"] = true; - ["item-not-found"] = true; - ["jid-malformed"] = true; - ["recipient-unavailable"] = true; - ["redirect"] = true; - ["remote-server-not-found"] = true; - ["remote-server-timeout"] = true; - ["service-unavailable"] = true; -}; -function get_kickable_error(stanza) - for _, tag in ipairs(stanza.tags) do - if tag.name == "error" and tag.attr.xmlns == "jabber:client" then - for _, cond in ipairs(tag.tags) do - if cond.attr.xmlns == "urn:ietf:params:xml:ns:xmpp-stanzas" then - return kickable_error_conditions[cond.name] and cond.name; - end - end - return true; -- malformed error message - end - end - return true; -- malformed error message -end -function getUsingPath(stanza, path, getText) - local tag = stanza; - for _, name in ipairs(path) do - if type(tag) ~= 'table' then return; end - tag = tag:child_with_name(name); - end - if tag and getText then tag = table.concat(tag); end - return tag; -end -function getTag(stanza, path) return getUsingPath(stanza, path); end -function getText(stanza, path) return getUsingPath(stanza, path, true); end - -function get_disco_info(stanza) - return st.iq({type='result', id=stanza.attr.id, from=muc_domain, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info") +local function get_disco_info(stanza) + return st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info") :tag("identity", {category='conference', type='text', name=muc_name}):up() :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply end -function get_disco_items(stanza) - local reply = st.iq({type='result', id=stanza.attr.id, from=muc_domain, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items"); - for room in pairs(rooms_info:get()) do - reply:tag("item", {jid=room, name=rooms_info:get(room, "name")}):up(); +local function get_disco_items(stanza) + local reply = st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items"); + for jid, room in pairs(rooms) do + reply:tag("item", {jid=jid, name=jid}):up(); end return reply; -- TODO cache disco reply end -function get_room_disco_info(stanza) - return st.iq({type='result', id=stanza.attr.id, from=stanza.attr.to, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info") - :tag("identity", {category='conference', type='text', name=rooms_info:get(stanza.attr.to, "name")}):up() - :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply -end -function get_room_disco_items(stanza) - return st.iq({type='result', id=stanza.attr.id, from=stanza.attr.to, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items"); -end -- TODO allow non-private rooms - -function save_room(room) - local persistent = rooms_info:get(room, 'persistent'); - if persistent then - datamanager.store(room, muc_domain, 'rooms', rooms_info:get(room)); - end - if persistent ~= persist_list[room] then - if not persistent then - datamanager.store(room, muc_domain, 'rooms', nil); - end - persist_list[room] = persistent; - datamanager.store(nil, muc_domain, 'room_list', persist_list); - end -end - -function set_subject(current_nick, room, subject) - -- TODO check nick's authority - if subject == "" then subject = nil; end - rooms_info:set(room, 'subject', subject); - save_room(); - local msg = st.message({type='groupchat', from=current_nick}) - :tag('subject'):text(subject):up(); - broadcast_message_stanza(room, msg, false); - return true; -end - -function broadcast_message_stanza(room, stanza, historic) - local r = rooms:get(room); - if r then - for occupant, o_data in pairs(r) do - for jid in pairs(o_data.sessions) do - stanza.attr.to = jid; - core_route_stanza(component, stanza); - end - end - if historic then -- add to history - local history = rooms_info:get(room, 'history'); - if not history then history = {}; rooms_info:set(room, 'history', history); end - -- stanza = st.clone(stanza); - stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = muc_domain, stamp = datetime.datetime()}):up(); -- XEP-0203 - stanza:tag("x", {xmlns = "jabber:x:delay", from = muc_domain, stamp = datetime.legacy()}):up(); -- XEP-0091 (deprecated) - t_insert(history, st.clone(st.preserialize(stanza))); - while #history > history_length do t_remove(history, 1) end - end - end -end -function broadcast_presence_stanza(room, stanza, code, nick) - stanza = get_filtered_presence(stanza); - local data = rooms:get(room, stanza.attr.from); - stanza:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) - :tag("item", {affiliation=data.affiliation, role=data.role, nick=nick}):up(); - if code then - stanza:tag("status", {code=code}):up(); - end - local me; - local r = rooms:get(room); - if r then - for occupant, o_data in pairs(r) do - if occupant ~= stanza.attr.from then - for jid in pairs(o_data.sessions) do - stanza.attr.to = jid; - core_route_stanza(component, stanza); - end - else - me = o_data; - end - end - end - if me then - stanza:tag("status", {code='110'}); - for jid in pairs(me.sessions) do - stanza.attr.to = jid; - core_route_stanza(component, stanza); - end - end -end -function send_history(room, to) - local history = rooms_info:get(room, 'history'); -- send discussion history - if history then - for _, msg in ipairs(history) do - msg = st.deserialize(msg); - msg.attr.to=to; - core_route_stanza(component, msg); - end - end - if rooms_info:get(room, 'subject') then - core_route_stanza(component, st.message({type='groupchat', from=room, to=to}):tag("subject"):text(rooms_info:get(room, 'subject'))); - end -end -function send_occupant_list(room, to) - local r = rooms:get(room); - if r then - local current_nick = jid_nick:get(to, room); - for occupant, o_data in pairs(r) do - if occupant ~= current_nick then - local pres = get_filtered_presence(o_data.sessions[o_data.jid]); - pres.attr.to, pres.attr.from = to, occupant; - pres:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) - :tag("item", {affiliation=o_data.affiliation, role=o_data.role}):up(); - core_route_stanza(component, pres); - end - end - end -end -function handle_to_occupant(origin, stanza) -- PM, vCards, etc - local from, to = stanza.attr.from, stanza.attr.to; - local room = jid_bare(to); - local current_nick = jid_nick:get(from, room); - local type = stanza.attr.type; - log("debug", "room: %s, current_nick: %s, stanza: %s", room or "nil", current_nick or "nil", stanza:top_tag()); - if (select(2, jid_split(from)) == muc_domain) then error("Presence from the MUC itself!!!"); end - if stanza.name == "presence" then - local pr = get_filtered_presence(stanza); - pr.attr.from = current_nick; - if type == "error" then -- error, kick em out! - if current_nick then - log("debug", "kicking %s from %s", current_nick, room); - handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}):tag('status'):text('This participant is kicked from the room because he sent an error presence')); -- send unavailable - end - elseif type == "unavailable" then -- unavailable - if current_nick then - log("debug", "%s leaving %s", current_nick, room); - local data = rooms:get(room, current_nick); - data.role = 'none'; - broadcast_presence_stanza(room, pr); - rooms:remove(room, current_nick); - jid_nick:remove(from, room); - end - elseif not type then -- available - if current_nick then - --if #pr == #stanza or current_nick ~= to then -- commented because google keeps resending directed presence - if current_nick == to then -- simple presence - log("debug", "%s broadcasted presence", current_nick); - rooms:get(room, current_nick).sessions[from] = pr; - broadcast_presence_stanza(room, pr); - else -- change nick - if rooms:get(room, to) then - log("debug", "%s couldn't change nick", current_nick); - origin.send(st.error_reply(stanza, "cancel", "conflict")); - else - local data = rooms:get(room, current_nick); - local to_nick = select(3, jid_split(to)); - if to_nick then - log("debug", "%s (%s) changing nick to %s", current_nick, data.jid, to); - local p = st.presence({type='unavailable', from=current_nick}); - broadcast_presence_stanza(room, p, '303', to_nick); - rooms:remove(room, current_nick); - rooms:set(room, to, data); - jid_nick:set(from, room, to); - pr.attr.from = to; - rooms:get(room, to).sessions[from] = pr; - broadcast_presence_stanza(room, pr); - else - --TODO malformed-jid - end - end - end - --else -- possible rejoin - -- log("debug", "%s had connection replaced", current_nick); - -- handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}):tag('status'):text('Replaced by new connection'):up()); -- send unavailable - -- handle_to_occupant(origin, stanza); -- resend available - --end - else -- enter room - local new_nick = to; - if rooms:get(room, to) then - new_nick = nil; - end - if not new_nick then - log("debug", "%s couldn't join due to nick conflict: %s", from, to); - origin.send(st.error_reply(stanza, "cancel", "conflict")); - else - log("debug", "%s joining as %s", from, to); - local data; - if not rooms:get(room) and not rooms_info:get(room) then -- new room - rooms_info:set(room, 'name', (jid_split(room))); - data = {affiliation='owner', role='moderator', jid=from, sessions={[from]=get_filtered_presence(stanza)}}; - end - if not data then -- new occupant - data = {affiliation='none', role='participant', jid=from, sessions={[from]=get_filtered_presence(stanza)}}; - end - rooms:set(room, to, data); - jid_nick:set(from, room, to); - send_occupant_list(room, from); - pr.attr.from = to; - broadcast_presence_stanza(room, pr); - send_history(room, from); - end - end - elseif type ~= 'result' then -- bad type - origin.send(st.error_reply(stanza, "modify", "bad-request")); -- FIXME correct error? - end - elseif not current_nick and type ~= "error" and type ~= "result" then -- not in room - origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); - elseif stanza.name == "message" and type == "groupchat" then -- groupchat messages not allowed in PM - origin.send(st.error_reply(stanza, "modify", "bad-request")); - elseif stanza.name == "message" and type == "error" and get_kickable_error(stanza) then - log("debug", "%s kicked from %s for sending an error message", current_nick, room); - handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}):tag('status'):text('This participant is kicked from the room because he sent an error message to another occupant')); -- send unavailable - else -- private stanza - local o_data = rooms:get(room, to); - if o_data then - log("debug", "%s sent private stanza to %s (%s)", from, to, o_data.jid); - local jid = o_data.jid; - -- TODO if stanza.name=='iq' and type=='get' and stanza.tags[1].attr.xmlns == 'vcard-temp' then jid = jid_bare(jid); end - stanza.attr.to, stanza.attr.from = jid, current_nick; - core_route_stanza(component, stanza); - elseif type ~= "error" and type ~= "result" then -- recipient not in room - origin.send(st.error_reply(stanza, "cancel", "item-not-found", "Recipient not in room")); - end - end -end - -function handle_to_room(origin, stanza) -- presence changes and groupchat messages, along with disco/etc - local type = stanza.attr.type; - if stanza.name == "iq" and type == "get" then -- disco requests - local xmlns = stanza.tags[1].attr.xmlns; - if xmlns == "http://jabber.org/protocol/disco#info" then - origin.send(get_room_disco_info(stanza)); - elseif xmlns == "http://jabber.org/protocol/disco#items" then - origin.send(get_room_disco_items(stanza)); - else - origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); - end - elseif stanza.name == "message" and type == "groupchat" then - local from, to = stanza.attr.from, stanza.attr.to; - local room = jid_bare(to); - local current_nick = jid_nick:get(from, room); - if not current_nick then -- not in room - origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); - else - local from = stanza.attr.from; - stanza.attr.from = current_nick; - local subject = getText(stanza, {"subject"}); - if subject then - set_subject(current_nick, room, subject); -- TODO use broadcast_message_stanza - else - broadcast_message_stanza(room, stanza, true); - end - end - elseif stanza.name == "presence" then -- hack - some buggy clients send presence updates to the room rather than their nick - local to = stanza.attr.to; - local current_nick = jid_nick:get(stanza.attr.from, to); - if current_nick then - stanza.attr.to = current_nick; - handle_to_occupant(origin, stanza); - stanza.attr.to = to; - elseif type ~= "error" and type ~= "result" then - origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); - end - elseif stanza.name == "message" and not stanza.attr.type and #stanza.tags == 1 and jid_nick:get(stanza.attr.from, stanza.attr.to) - and stanza.tags[1].name == "x" and stanza.tags[1].attr.xmlns == "http://jabber.org/protocol/muc#user" and #stanza.tags[1].tags == 1 - and stanza.tags[1].tags[1].name == "invite" and stanza.tags[1].tags[1].attr.to then - local _from, _to = stanza.attr.from, stanza.attr.to; - local _invitee = stanza.tags[1].tags[1].attr.to; - stanza.attr.from, stanza.attr.to = _to, _invitee; - stanza.tags[1].tags[1].attr.from, stanza.tags[1].tags[1].attr.to = _from, nil; - core_route_stanza(component, stanza); - stanza.tags[1].tags[1].attr.from, stanza.tags[1].tags[1].attr.to = nil, _invitee; - stanza.attr.from, stanza.attr.to = _from, _to; - else - if type == "error" or type == "result" then return; end - origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); - end -end - -function handle_to_domain(origin, stanza) +local function handle_to_domain(origin, stanza) local type = stanza.attr.type; if type == "error" or type == "result" then return; end if stanza.name == "iq" and type == "get" then @@ -408,32 +44,36 @@ function handle_to_domain(origin, stanza) origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc end else - origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "The muc server doesn't deal with messages and presence directed at it")); + 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")); end end -register_component(muc_domain, function(origin, stanza) +component = register_component(muc_host, function(origin, stanza) local to_node, to_host, to_resource = jid_split(stanza.attr.to); - if to_resource and not to_node then - if type == "error" or type == "result" then return; end - origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- host/resource - elseif to_resource then - handle_to_occupant(origin, stanza); - elseif to_node then - handle_to_room(origin, stanza) - else -- to the main muc domain - if type == "error" or type == "result" then return; end - handle_to_domain(origin, stanza); + if to_node then + local bare = to_node.."@"..to_host; + if to_host == muc_host or bare == muc_host then + local room = rooms[bare]; + if not room then + room = muc_new_room(bare); + room.route_stanza = function(room, stanza) core_post_stanza(component, stanza); end; + rooms[bare] = room; + end + room:handle_stanza(origin, stanza); + else --[[not for us?]] end + return; end + -- to the main muc domain + handle_to_domain(origin, stanza); end); module.unload = function() - deregister_component(muc_domain); + deregister_component(muc_host); end module.save = function() - return {rooms = rooms.data; jid_nick = jid_nick.data; rooms_info = rooms_info.data; persist_list = persist_list}; + return {rooms = rooms}; end module.restore = function(data) - rooms.data, jid_nick.data, rooms_info.data, persist_list = - data.rooms or {}, data.jid_nick or {}, data.rooms_info or {}, data.persist_list or {}; + rooms = data.rooms or {}; end |