diff options
Diffstat (limited to 'util/muc.lua')
| -rw-r--r-- | util/muc.lua | 418 |
1 files changed, 0 insertions, 418 deletions
diff --git a/util/muc.lua b/util/muc.lua deleted file mode 100644 index badcffce..00000000 --- a/util/muc.lua +++ /dev/null @@ -1,418 +0,0 @@ --- Prosody IM --- 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 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; - -local muc_domain = nil; --module:get_host(); -local history_length = 20; - ------------- -local 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 -local 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}; -local 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; -}; -local 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 -local 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 -local function getTag(stanza, path) return getUsingPath(stanza, path); end -local function getText(stanza, path) return getUsingPath(stanza, path, true); end ------------ - ---[[function get_room_disco_info(room, 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=room._data["name"]):up() - :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply -end -function get_room_disco_items(room, 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]] - --- - -local function room_broadcast_presence(room, stanza, code, nick) - stanza = get_filtered_presence(stanza); - local data = room._participants[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; - for occupant, o_data in pairs(room._participants) do - if occupant ~= stanza.attr.from then - for jid in pairs(o_data.sessions) do - stanza.attr.to = jid; - room:route_stanza(stanza); - end - else - me = o_data; - end - end - if me then - stanza:tag("status", {code='110'}); - for jid in pairs(me.sessions) do - stanza.attr.to = jid; - room:route_stanza(stanza); - end - end -end -local function room_broadcast_message(room, stanza, historic) - for occupant, o_data in pairs(room._participants) do - for jid in pairs(o_data.sessions) do - stanza.attr.to = jid; - room:route_stanza(stanza); - end - end - if historic then -- add to history - local history = room._data['history']; - if not history then history = {}; room._data['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 - - -local function room_send_occupant_list(room, to) - local current_nick = room._jid_nick[to]; - for occupant, o_data in pairs(room._participants) 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(); - room:route_stanza(pres); - end - end -end -local function room_send_history(room, to) - local history = room._data['history']; -- send discussion history - if history then - for _, msg in ipairs(history) do - msg = st.deserialize(msg); - msg.attr.to=to; - room:route_stanza(msg); - end - end - if room._data['subject'] then - room:route_stanza(st.message({type='groupchat', from=room.jid, to=to}):tag("subject"):text(room._data['subject'])); - end -end - -local function room_get_disco_info(self, stanza) end -local function room_get_disco_items(self, stanza) end -local function room_set_subject(room, current_nick, subject) - -- TODO check nick's authority - if subject == "" then subject = nil; end - room._data['subject'] = subject; - local msg = st.message({type='groupchat', from=current_nick}) - :tag('subject'):text(subject):up(); - room_broadcast_message(room, msg, false); - return true; -end - -local function room_handle_to_occupant(self, origin, stanza) -- PM, vCards, etc - local from, to = stanza.attr.from, stanza.attr.to; - local room = jid_bare(to); - local current_nick = self._jid_nick[from]; - 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); - room_handle_to_occupant(self, 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 = self._participants[current_nick]; - data.role = 'none'; - room_broadcast_presence(self, pr); - self._participants[current_nick] = nil; - self._jid_nick[from] = nil; - 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); - self._participants[current_nick].sessions[from] = pr; - room_broadcast_presence(self, pr); - else -- change nick - if self._participants[to] then - log("debug", "%s couldn't change nick", current_nick); - origin.send(st.error_reply(stanza, "cancel", "conflict"):tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - else - local data = self._participants[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}); - room_broadcast_presence(self, p, '303', to_nick); - self._participants[current_nick] = nil; - self._participants[to] = data; - self._jid_nick[from] = to; - pr.attr.from = to; - self._participants[to].sessions[from] = pr; - room_broadcast_presence(self, 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 self._participants[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"):tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - 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 - self._participants[to] = data; - self._jid_nick[from] = to; - room_send_occupant_list(self, from); - pr.attr.from = to; - room_broadcast_presence(self, pr); - room_send_history(self, 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); - room_handle_to_occupant(self, 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 = self._participants[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; - self:route_stanza(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 - -local function room_handle_to_room(self, 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(room_get_disco_info(self, stanza)); - elseif xmlns == "http://jabber.org/protocol/disco#items" then - origin.send(room_get_disco_items(self, 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 = self._jid_nick[from]; - 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 - self:set_subject(current_nick, subject); -- TODO use broadcast_message_stanza - else - room_broadcast_message(self, 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 = self._jid_nick[stanza.attr.from]; - if current_nick then - stanza.attr.to = current_nick; - room_handle_to_occupant(self, 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 self._jid_nick[stanza.attr.from] - 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; - self:route_stanza(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 - -local function room_handle_stanza(self, origin, stanza) - local to_node, to_host, to_resource = jid_split(stanza.attr.to); - if to_resource then - room_handle_to_occupant(self, origin, stanza); - else - room_handle_to_room(self, origin, stanza); - end -end - -module "muc" - -function new_room(jid) - return { - jid = jid; - handle_stanza = room_handle_stanza; - set_subject = room_set_subject; - route_stanza = function(room, stanza) end; -- Replace with a routing function, e.g., function(room, stanza) core_route_stanza(origin, stanza); end - _jid_nick = {}; - _participants = {}; - _data = {}; - } -end - -return _M; - ---[[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") - :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(); - end - return reply; -- TODO cache disco reply -end]] - ---[[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 - local xmlns = stanza.tags[1].attr.xmlns; - if xmlns == "http://jabber.org/protocol/disco#info" then - origin.send(get_disco_info(stanza)); - elseif xmlns == "http://jabber.org/protocol/disco#items" then - origin.send(get_disco_items(stanza)); - else - 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")); - end -end - -register_component(muc_domain, 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); - end -end);]] - ---[[module.unload = function() - deregister_component(muc_domain); -end -module.save = function() - return {rooms = rooms.data; jid_nick = jid_nick.data; rooms_info = rooms_info.data; persist_list = persist_list}; -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 {}; -end]] |