diff options
Diffstat (limited to 'plugins/muc/muc.lib.lua')
| -rw-r--r-- | plugins/muc/muc.lib.lua | 1272 |
1 files changed, 751 insertions, 521 deletions
diff --git a/plugins/muc/muc.lib.lua b/plugins/muc/muc.lib.lua index 8cf8d882..5debb4a3 100644 --- a/plugins/muc/muc.lib.lua +++ b/plugins/muc/muc.lib.lua @@ -1,6 +1,7 @@ -- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. @@ -9,6 +10,7 @@ local select = select; local pairs, ipairs = pairs, ipairs; +local gettime = os.time; local datetime = require "util.datetime"; local dataform = require "util.dataforms"; @@ -23,44 +25,42 @@ local setmetatable = setmetatable; local base64 = require "util.encodings".base64; local md5 = require "util.hashes".md5; -local muc_domain = nil; --module:get_host(); local default_history_length, max_history_length = 20, math.huge; ------------- -local presence_filters = {["http://jabber.org/protocol/muc"]=true;["http://jabber.org/protocol/muc#user"]=true}; -local function presence_filter(tag) - if presence_filters[tag.attr.xmlns] then - return nil; +local get_filtered_presence do + local presence_filters = { + ["http://jabber.org/protocol/muc"] = true; + ["http://jabber.org/protocol/muc#user"] = true; + } + local function presence_filter(tag) + if presence_filters[tag.attr.xmlns] then + return nil; + end + return tag; + end + function get_filtered_presence(stanza) + return st.clone(stanza):maptags(presence_filter); end - return tag; -end - -local function get_filtered_presence(stanza) - return st.clone(stanza):maptags(presence_filter); -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; - ["malformed error"] = true; -}; - -local function get_error_condition(stanza) - local _, condition = stanza:get_error(); - return condition or "malformed error"; end -local function is_kickable_error(stanza) - local cond = get_error_condition(stanza); - return kickable_error_conditions[cond] and cond; +local is_kickable_error do + 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; + ["malformed error"] = true; + }; + function is_kickable_error(stanza) + local cond = select(2, stanza:get_error()) or "malformed error"; + return kickable_error_conditions[cond]; + end end ------------ local room_mt = {}; room_mt.__index = room_mt; @@ -69,6 +69,10 @@ function room_mt:__tostring() return "MUC room ("..self.jid..")"; end +function room_mt:get_occupant_jid(real_jid) + return self._jid_nick[real_jid] +end + function room_mt:get_default_role(affiliation) if affiliation == "owner" or affiliation == "admin" then return "moderator"; @@ -81,6 +85,26 @@ function room_mt:get_default_role(affiliation) end end +function room_mt:lock() + self.locked = true +end +function room_mt:unlock() + module:fire_event("muc-room-unlocked", { room = self }); + self.locked = nil +end +function room_mt:is_locked() + return not not self.locked +end + +function room_mt:route_to_occupant(o_data, stanza) + local to = stanza.attr.to; + for jid in pairs(o_data.sessions) do + stanza.attr.to = jid; + self:_route_stanza(stanza); + end + stanza.attr.to = to; +end + function room_mt:broadcast_presence(stanza, sid, code, nick) stanza = get_filtered_presence(stanza); local occupant = self._occupants[stanza.attr.from]; @@ -90,51 +114,49 @@ function room_mt:broadcast_presence(stanza, sid, code, nick) stanza:tag("status", {code=code}):up(); end self:broadcast_except_nick(stanza, stanza.attr.from); - local me = self._occupants[stanza.attr.from]; - if me then - stanza:tag("status", {code='110'}):up(); - stanza.attr.to = sid; - self:_route_stanza(stanza); - end + stanza:tag("status", {code='110'}):up(); + stanza.attr.to = sid; + self:_route_stanza(stanza); end function room_mt:broadcast_message(stanza, historic) - local to = stanza.attr.to; - for occupant, o_data in pairs(self._occupants) do - for jid in pairs(o_data.sessions) do - stanza.attr.to = jid; - self:_route_stanza(stanza); - end - end - stanza.attr.to = to; - if historic then -- add to history - return self:save_to_history(stanza) - end -end -function room_mt:save_to_history(stanza) - local history = self._data['history']; - if not history then history = {}; self._data['history'] = history; end - stanza = st.clone(stanza); - stanza.attr.to = ""; - local stamp = datetime.datetime(); - stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = muc_domain, stamp = stamp}):up(); -- XEP-0203 - stanza:tag("x", {xmlns = "jabber:x:delay", from = muc_domain, stamp = datetime.legacy()}):up(); -- XEP-0091 (deprecated) - local entry = { stanza = stanza, stamp = stamp }; - t_insert(history, entry); - while #history > (self._data.history_length or default_history_length) do t_remove(history, 1) end + module:fire_event("muc-broadcast-message", {room = self, stanza = stanza, historic = historic}); + self:broadcast(stanza); end + +-- add to history +module:hook("muc-broadcast-message", function(event) + if event.historic then + local room = event.room + local history = room._data['history']; + if not history then history = {}; room._data['history'] = history; end + local stanza = st.clone(event.stanza); + stanza.attr.to = ""; + local ts = gettime(); + local stamp = datetime.datetime(ts); + stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = module.host, stamp = stamp}):up(); -- XEP-0203 + stanza:tag("x", {xmlns = "jabber:x:delay", from = module.host, stamp = datetime.legacy()}):up(); -- XEP-0091 (deprecated) + local entry = { stanza = stanza, timestamp = ts }; + t_insert(history, entry); + while #history > room:get_historylength() do t_remove(history, 1) end + end +end) + function room_mt:broadcast_except_nick(stanza, nick) - for rnick, occupant in pairs(self._occupants) do - if rnick ~= nick then - for jid in pairs(occupant.sessions) do - stanza.attr.to = jid; - self:_route_stanza(stanza); - end + return self:broadcast(stanza, function(rnick, occupant) return rnick ~= nick end) +end + +-- Broadcast a stanza to all occupants in the room. +-- optionally checks conditional called with nicl +function room_mt:broadcast(stanza, cond_func) + for nick, occupant in pairs(self._occupants) do + if cond_func == nil or cond_func(nick, occupant) then + self:route_to_occupant(occupant, stanza) end end end function room_mt:send_occupant_list(to) - local current_nick = self._jid_nick[to]; + local current_nick = self:get_occupant_jid(to); for occupant, o_data in pairs(self._occupants) do if occupant ~= current_nick then local pres = get_filtered_presence(o_data.sessions[o_data.jid]); @@ -145,52 +167,88 @@ function room_mt:send_occupant_list(to) end end end -function room_mt:send_history(to, stanza) - local history = self._data['history']; -- send discussion history - if history then - local x_tag = stanza and stanza:get_child("x", "http://jabber.org/protocol/muc"); - local history_tag = x_tag and x_tag:get_child("history", "http://jabber.org/protocol/muc"); - local maxchars = history_tag and tonumber(history_tag.attr.maxchars); - if maxchars then maxchars = math.floor(maxchars); end +local function parse_history(stanza) + local x_tag = stanza:get_child("x", "http://jabber.org/protocol/muc"); + local history_tag = x_tag and x_tag:get_child("history", "http://jabber.org/protocol/muc"); + if not history_tag then + return nil, 20, nil + end + + local maxchars = tonumber(history_tag.attr.maxchars); - local maxstanzas = math.floor(history_tag and tonumber(history_tag.attr.maxstanzas) or #history); - if not history_tag then maxstanzas = 20; end + local maxstanzas = tonumber(history_tag.attr.maxstanzas); - local seconds = history_tag and tonumber(history_tag.attr.seconds); - if seconds then seconds = datetime.datetime(os.time() - math.floor(seconds)); end + -- messages received since the UTC datetime specified + local since = history_tag.attr.since; + if since then + since = datetime.parse(since); + end - local since = history_tag and history_tag.attr.since; - if since then since = datetime.parse(since); since = since and datetime.datetime(since); end - if seconds and (not since or since < seconds) then since = seconds; end + -- messages received in the last "X" seconds. + local seconds = tonumber(history_tag.attr.seconds); + if seconds then + seconds = gettime() - seconds + if since then + since = math.max(since, seconds); + else + since = seconds; + end + end - local n = 0; - local charcount = 0; + return maxchars, maxstanzas, since +end - for i=#history,1,-1 do - local entry = history[i]; - if maxchars then - if not entry.chars then - entry.stanza.attr.to = ""; - entry.chars = #tostring(entry.stanza); - end - charcount = charcount + entry.chars + #to; - if charcount > maxchars then break; end +module:hook("muc-get-history", function(event) + local room = event.room + local history = room._data['history']; -- send discussion history + if not history then return nil end + local history_len = #history + + local to = event.to + local maxchars = event.maxchars + local maxstanzas = event.maxstanzas or history_len + local since = event.since + local n = 0; + local charcount = 0; + for i=history_len,1,-1 do + local entry = history[i]; + if maxchars then + if not entry.chars then + entry.stanza.attr.to = ""; + entry.chars = #tostring(entry.stanza); end - if since and since > entry.stamp then break; end - if n + 1 > maxstanzas then break; end - n = n + 1; - end - for i=#history-n+1,#history do - local msg = history[i].stanza; - msg.attr.to = to; - self:_route_stanza(msg); + charcount = charcount + entry.chars + #to; + if charcount > maxchars then break; end end + if since and since > entry.timestamp then break; end + if n + 1 > maxstanzas then break; end + n = n + 1; end -end -function room_mt:send_subject(to) - if self._data['subject'] then - self:_route_stanza(st.message({type='groupchat', from=self._data['subject_from'] or self.jid, to=to}):tag("subject"):text(self._data['subject'])); + + local i = history_len-n+1 + function event:next_stanza() + if i > history_len then return nil end + local entry = history[i] + local msg = entry.stanza + msg.attr.to = to; + i = i + 1 + return msg + end + return true; +end) + +function room_mt:send_history(stanza) + local maxchars, maxstanzas, since = parse_history(stanza) + local event = { + room = self; + to = stanza.attr.from; -- `to` is required to calculate the character count for `maxchars` + maxchars = maxchars, maxstanzas = maxstanzas, since = since; + next_stanza = function() end; -- events should define this iterator + } + module:fire_event("muc-get-history", event) + for msg in event.next_stanza , event do + self:_route_stanza(msg); end end @@ -204,7 +262,7 @@ function room_mt:get_disco_info(stanza) :tag("feature", {var=self:get_members_only() and "muc_membersonly" or "muc_open"}):up() :tag("feature", {var=self:get_persistent() and "muc_persistent" or "muc_temporary"}):up() :tag("feature", {var=self:get_hidden() and "muc_hidden" or "muc_public"}):up() - :tag("feature", {var=self._data.whois ~= "anyone" and "muc_semianonymous" or "muc_nonanonymous"}):up() + :tag("feature", {var=self:get_whois() ~= "anyone" and "muc_semianonymous" or "muc_nonanonymous"}):up() :add_child(dataform.new({ { name = "FORM_TYPE", type = "hidden", value = "http://jabber.org/protocol/muc#roominfo" }, { name = "muc#roominfo_description", label = "Description", value = "" }, @@ -219,25 +277,44 @@ function room_mt:get_disco_items(stanza) end return reply; end + +function room_mt:get_subject() + return self._data['subject'], self._data['subject_from'] +end +local function create_subject_message(subject) + return st.message({type='groupchat'}) + :tag('subject'):text(subject):up(); +end +function room_mt:send_subject(to) + local from, subject = self:get_subject() + if subject then + local msg = create_subject_message(subject) + msg.attr.from = from + msg.attr.to = to + self:_route_stanza(msg); + end +end function room_mt:set_subject(current_nick, subject) if subject == "" then subject = nil; end self._data['subject'] = subject; self._data['subject_from'] = current_nick; if self.save then self:save(); end - local msg = st.message({type='groupchat', from=current_nick}) - :tag('subject'):text(subject):up(); + local msg = create_subject_message(subject) + msg.attr.from = current_nick self:broadcast_message(msg, false); return true; end -local function build_unavailable_presence_from_error(stanza) +function room_mt:handle_kickable(origin, stanza) local type, condition, text = stanza:get_error(); local error_message = "Kicked: "..(condition and condition:gsub("%-", " ") or "presence error"); if text then error_message = error_message..": "..text; end - return st.presence({type='unavailable', from=stanza.attr.from, to=stanza.attr.to}) + local kick_stanza = st.presence({type='unavailable', from=stanza.attr.from, to=stanza.attr.to}) :tag('status'):text(error_message); + self:handle_unavailable_to_occupant(origin, kick_stanza); -- send unavailable + return true; end function room_mt:set_name(name) @@ -351,237 +428,309 @@ function room_mt:get_whois() return self._data.whois; end -local function construct_stanza_id(room, stanza) - local from_jid, to_nick = stanza.attr.from, stanza.attr.to; - local from_nick = room._jid_nick[from_jid]; - local occupant = room._occupants[to_nick]; - local to_jid = occupant.jid; +function room_mt:handle_unavailable_to_occupant(origin, stanza) + local from = stanza.attr.from; + local current_nick = self:get_occupant_jid(from); + if not current_nick then + return true; -- discard + end + local pr = get_filtered_presence(stanza); + pr.attr.from = current_nick; + log("debug", "%s leaving %s", current_nick, self.jid); + self._jid_nick[from] = nil; + local occupant = self._occupants[current_nick]; + local new_jid = next(occupant.sessions); + if new_jid == from then new_jid = next(occupant.sessions, new_jid); end + if new_jid then + local jid = occupant.jid; + occupant.jid = new_jid; + occupant.sessions[from] = nil; + pr.attr.to = from; + pr:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) + :tag("item", {affiliation=occupant.affiliation or "none", role='none'}):up() + :tag("status", {code='110'}):up(); + self:_route_stanza(pr); + if jid ~= new_jid then + pr = st.clone(occupant.sessions[new_jid]) + :tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) + :tag("item", {affiliation=occupant.affiliation or "none", role=occupant.role or "none"}); + pr.attr.from = current_nick; + self:broadcast_except_nick(pr, current_nick); + end + else + occupant.role = 'none'; + self:broadcast_presence(pr, from); + self._occupants[current_nick] = nil; + module:fire_event("muc-occupant-left", { room = self; nick = current_nick; }); + end + return true; +end + +function room_mt:handle_occupant_presence(origin, stanza) + local from = stanza.attr.from; + local pr = get_filtered_presence(stanza); + local current_nick = stanza.attr.to + pr.attr.from = current_nick; + log("debug", "%s broadcasted presence", current_nick); + self._occupants[current_nick].sessions[from] = pr; + self:broadcast_presence(pr, from); + return true; +end - return from_nick, to_jid, base64.encode(to_jid.."\0"..stanza.attr.id.."\0"..md5(from_jid)); +function room_mt:handle_change_nick(origin, stanza, current_nick, to) + local from = stanza.attr.from; + local occupant = self._occupants[current_nick]; + local is_multisession = next(occupant.sessions, next(occupant.sessions)); + if self._occupants[to] or is_multisession then + log("debug", "%s couldn't change nick", current_nick); + local reply = st.error_reply(stanza, "cancel", "conflict"):up(); + reply.tags[1].attr.code = "409"; + origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); + return true; + else + local to_nick = select(3, jid_split(to)); + log("debug", "%s (%s) changing nick to %s", current_nick, occupant.jid, to); + local p = st.presence({type='unavailable', from=current_nick}); + self:broadcast_presence(p, from, '303', to_nick); + self._occupants[current_nick] = nil; + self._occupants[to] = occupant; + self._jid_nick[from] = to; + local pr = get_filtered_presence(stanza); + pr.attr.from = to; + self._occupants[to].sessions[from] = pr; + self:broadcast_presence(pr, from); + return true; + end end -local function deconstruct_stanza_id(room, stanza) - local from_jid_possiblybare, to_nick = stanza.attr.from, stanza.attr.to; - local from_jid, id, to_jid_hash = (base64.decode(stanza.attr.id) or ""):match("^(.+)%z(.*)%z(.+)$"); - local from_nick = room._jid_nick[from_jid]; - if not(from_nick) then return; end - if not(from_jid_possiblybare == from_jid or from_jid_possiblybare == jid_bare(from_jid)) then return; end +module:hook("muc-occupant-pre-join", function(event) + return module:fire_event("muc-occupant-pre-join/affiliation", event) + or module:fire_event("muc-occupant-pre-join/password", event) + or module:fire_event("muc-occupant-pre-join/locked", event) + or module:fire_event("muc-occupant-pre-join/nick-conflict", event) +end, -1) + +module:hook("muc-occupant-pre-join/password", function(event) + local room, stanza = event.room, event.stanza; + local from, to = stanza.attr.from, stanza.attr.to; + local password = stanza:get_child("x", "http://jabber.org/protocol/muc"); + password = password and password:get_child_text("password", "http://jabber.org/protocol/muc"); + if not password or password == "" then password = nil; end + if room:get_password() ~= password then + local from, to = stanza.attr.from, stanza.attr.to; + log("debug", "%s couldn't join due to invalid password: %s", from, to); + local reply = st.error_reply(stanza, "auth", "not-authorized"):up(); + reply.tags[1].attr.code = "401"; + event.origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); + return true; + end +end, -1) + +module:hook("muc-occupant-pre-join/nick-conflict", function(event) + local room, stanza = event.room, event.stanza; + local from, to = stanza.attr.from, stanza.attr.to; + local occupant = room._occupants[to] + if occupant -- occupant already exists + and jid_bare(from) ~= jid_bare(occupant.jid) then -- and has different bare real jid + log("debug", "%s couldn't join due to nick conflict: %s", from, to); + local reply = st.error_reply(stanza, "cancel", "conflict"):up(); + reply.tags[1].attr.code = "409"; + event.origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); + return true; + end +end, -1) + +module:hook("muc-occupant-pre-join/locked", function(event) + if event.room:is_locked() then -- Deny entry + event.origin.send(st.error_reply(event.stanza, "cancel", "item-not-found")); + return true; + end +end, -1) - local occupant = room._occupants[to_nick]; - for to_jid in pairs(occupant and occupant.sessions or {}) do - if md5(to_jid) == to_jid_hash then - return from_nick, to_jid, id; +function room_mt:handle_join(origin, stanza) + local from, to = stanza.attr.from, stanza.attr.to; + local affiliation = self:get_affiliation(from); + if affiliation == nil and next(self._affiliations) == nil then -- new room, no owners + affiliation = "owner"; + self._affiliations[jid_bare(from)] = affiliation; + if self:is_locked() and not stanza:get_child("x", "http://jabber.org/protocol/muc") then + self:unlock(); -- Older groupchat protocol doesn't lock + end + end + if module:fire_event("muc-occupant-pre-join", { + room = self; + origin = origin; + stanza = stanza; + affiliation = affiliation; + }) then return true; end + log("debug", "%s joining as %s", from, to); + + local role = self:get_default_role(affiliation) + if role then -- new occupant + local is_merge = not not self._occupants[to] + if not is_merge then + self._occupants[to] = {affiliation=affiliation, role=role, jid=from, sessions={[from]=get_filtered_presence(stanza)}}; + else + self._occupants[to].sessions[from] = get_filtered_presence(stanza); end + self._jid_nick[from] = to; + self:send_occupant_list(from); + local pr = get_filtered_presence(stanza); + pr.attr.from = to; + pr:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) + :tag("item", {affiliation=affiliation or "none", role=role or "none"}):up(); + if not is_merge then + self:broadcast_except_nick(pr, to); + end + pr:tag("status", {code='110'}):up(); + if self:get_whois() == 'anyone' then + pr:tag("status", {code='100'}):up(); + end + if self:is_locked() then + pr:tag("status", {code='201'}):up(); + end + pr.attr.to = from; + self:_route_stanza(pr); + self:send_history(from, stanza); + self:send_subject(from); + return true; end end +-- registration required for entering members-only room +module:hook("muc-occupant-pre-join/affiliation", function(event) + if event.affiliation == nil and event.room:get_members_only() then + local reply = st.error_reply(event.stanza, "auth", "registration-required"):up(); + reply.tags[1].attr.code = "407"; + event.origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); + return true; + end +end, -1) + +-- banned +module:hook("muc-occupant-pre-join/affiliation", function(event) + if event.affiliation == "outcast" then + local reply = st.error_reply(event.stanza, "auth", "forbidden"):up(); + reply.tags[1].attr.code = "403"; + event.origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); + return true; + end +end, -1) -function room_mt:handle_to_occupant(origin, stanza) -- PM, vCards, etc +function room_mt:handle_available_to_occupant(origin, stanza) 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); - self:handle_to_occupant(origin, build_unavailable_presence_from_error(stanza)); + local current_nick = self:get_occupant_jid(from); + 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 + return self:handle_occupant_presence(origin, stanza) + else -- change nick + return self:handle_change_nick(origin, stanza, current_nick, to) end - elseif type == "unavailable" then -- unavailable - if current_nick then - log("debug", "%s leaving %s", current_nick, room); - self._jid_nick[from] = nil; - local occupant = self._occupants[current_nick]; - local new_jid = next(occupant.sessions); - if new_jid == from then new_jid = next(occupant.sessions, new_jid); end - if new_jid then - local jid = occupant.jid; - occupant.jid = new_jid; - occupant.sessions[from] = nil; - pr.attr.to = from; - pr:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) - :tag("item", {affiliation=occupant.affiliation or "none", role='none'}):up() - :tag("status", {code='110'}):up(); - self:_route_stanza(pr); - if jid ~= new_jid then - pr = st.clone(occupant.sessions[new_jid]) - :tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) - :tag("item", {affiliation=occupant.affiliation or "none", role=occupant.role or "none"}); - pr.attr.from = current_nick; - self:broadcast_except_nick(pr, current_nick); - end - else - occupant.role = 'none'; - self:broadcast_presence(pr, from); - self._occupants[current_nick] = nil; - end - 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._occupants[current_nick].sessions[from] = pr; - self:broadcast_presence(pr, from); - else -- change nick - local occupant = self._occupants[current_nick]; - local is_multisession = next(occupant.sessions, next(occupant.sessions)); - if self._occupants[to] or is_multisession then - log("debug", "%s couldn't change nick", current_nick); - local reply = st.error_reply(stanza, "cancel", "conflict"):up(); - reply.tags[1].attr.code = "409"; - origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - else - local data = self._occupants[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}); - self:broadcast_presence(p, from, '303', to_nick); - self._occupants[current_nick] = nil; - self._occupants[to] = data; - self._jid_nick[from] = to; - pr.attr.from = to; - self._occupants[to].sessions[from] = pr; - self:broadcast_presence(pr, from); - else - --TODO malformed-jid - end - end - end - --else -- possible rejoin - -- log("debug", "%s had connection replaced", current_nick); - -- self:handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}) - -- :tag('status'):text('Replaced by new connection'):up()); -- send unavailable - -- self:handle_to_occupant(origin, stanza); -- resend available - --end - else -- enter room - local new_nick = to; - local is_merge; - if self._occupants[to] then - if jid_bare(from) ~= jid_bare(self._occupants[to].jid) then - new_nick = nil; - end - is_merge = true; - end - local password = stanza:get_child("x", "http://jabber.org/protocol/muc"); - password = password and password:get_child("password", "http://jabber.org/protocol/muc"); - password = password and password[1] ~= "" and password[1]; - if self:get_password() and self:get_password() ~= password then - log("debug", "%s couldn't join due to invalid password: %s", from, to); - local reply = st.error_reply(stanza, "auth", "not-authorized"):up(); - reply.tags[1].attr.code = "401"; - origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - elseif not new_nick then - log("debug", "%s couldn't join due to nick conflict: %s", from, to); - local reply = st.error_reply(stanza, "cancel", "conflict"):up(); - reply.tags[1].attr.code = "409"; - origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - else - log("debug", "%s joining as %s", from, to); - if not next(self._affiliations) then -- new room, no owners - self._affiliations[jid_bare(from)] = "owner"; - if self.locked and not stanza:get_child("x", "http://jabber.org/protocol/muc") then - self.locked = nil; -- Older groupchat protocol doesn't lock - end - elseif self.locked then -- Deny entry - origin.send(st.error_reply(stanza, "cancel", "item-not-found")); - return; - end - local affiliation = self:get_affiliation(from); - local role = self:get_default_role(affiliation) - if role then -- new occupant - if not is_merge then - self._occupants[to] = {affiliation=affiliation, role=role, jid=from, sessions={[from]=get_filtered_presence(stanza)}}; - else - self._occupants[to].sessions[from] = get_filtered_presence(stanza); - end - self._jid_nick[from] = to; - self:send_occupant_list(from); - pr.attr.from = to; - pr:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) - :tag("item", {affiliation=affiliation or "none", role=role or "none"}):up(); - if not is_merge then - self:broadcast_except_nick(pr, to); - end - pr:tag("status", {code='110'}):up(); - if self._data.whois == 'anyone' then - pr:tag("status", {code='100'}):up(); - end - if self.locked then - pr:tag("status", {code='201'}):up(); - end - pr.attr.to = from; - self:_route_stanza(pr); - self:send_history(from, stanza); - self:send_subject(from); - elseif not affiliation then -- registration required for entering members-only room - local reply = st.error_reply(stanza, "auth", "registration-required"):up(); - reply.tags[1].attr.code = "407"; - origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - else -- banned - local reply = st.error_reply(stanza, "auth", "forbidden"):up(); - reply.tags[1].attr.code = "403"; - origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - end + --else -- possible rejoin + -- log("debug", "%s had connection replaced", current_nick); + -- self:handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}) + -- :tag('status'):text('Replaced by new connection'):up()); -- send unavailable + -- self:handle_to_occupant(origin, stanza); -- resend available + --end + else -- enter room + return self:handle_join(origin, stanza) + end +end + +function room_mt:handle_presence_to_occupant(origin, stanza) + local type = stanza.attr.type; + if type == "error" then -- error, kick em out! + return self:handle_kickable(origin, stanza) + elseif type == "unavailable" then -- unavailable + return self:handle_unavailable_to_occupant(origin, stanza) + elseif not type then -- available + return self:handle_available_to_occupant(origin, stanza) + elseif type ~= 'result' then -- bad type + if type ~= 'visible' and type ~= 'invisible' then -- COMPAT ejabberd can broadcast or forward XEP-0018 presences + origin.send(st.error_reply(stanza, "modify", "bad-request")); -- FIXME correct error? + end + end + return true; +end + +function room_mt:handle_iq_to_occupant(origin, stanza) + local from, to = stanza.attr.from, stanza.attr.to; + local type = stanza.attr.type; + local id = stanza.attr.id; + local current_nick = self:get_occupant_jid(from); + local o_data = self._occupants[to]; + if (type == "error" or type == "result") then + do -- deconstruct_stanza_id + if not current_nick or not o_data then return nil; end + local from_jid, id, to_jid_hash = (base64.decode(stanza.attr.id) or ""):match("^(.+)%z(.*)%z(.+)$"); + if not(from == from_jid or from == jid_bare(from_jid)) then return nil; end + local session_jid + for to_jid in pairs(o_data.sessions) do + if md5(to_jid) == to_jid_hash then + session_jid = to_jid; + break; end end - elseif type ~= 'result' then -- bad type - if type ~= 'visible' and type ~= 'invisible' then -- COMPAT ejabberd can broadcast or forward XEP-0018 presences - origin.send(st.error_reply(stanza, "modify", "bad-request")); -- FIXME correct error? - end + if session_jid == nil then return nil; end + stanza.attr.from, stanza.attr.to, stanza.attr.id = current_nick, session_jid, id end - elseif not current_nick then -- not in room - if (type == "error" or type == "result") and stanza.name == "iq" then - local id = stanza.attr.id; - stanza.attr.from, stanza.attr.to, stanza.attr.id = deconstruct_stanza_id(self, stanza); - if stanza.attr.id then - self:_route_stanza(stanza); - end - stanza.attr.from, stanza.attr.to, stanza.attr.id = from, to, id; - elseif type ~= "error" then + log("debug", "%s sent private iq stanza to %s (%s)", from, to, stanza.attr.to); + self:_route_stanza(stanza); + stanza.attr.from, stanza.attr.to, stanza.attr.id = from, to, id; + return true; + else -- Type is "get" or "set" + if not current_nick then origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); + return true; end - elseif stanza.name == "message" and type == "groupchat" then -- groupchat messages not allowed in PM - origin.send(st.error_reply(stanza, "modify", "bad-request")); - elseif current_nick and stanza.name == "message" and type == "error" and is_kickable_error(stanza) then - log("debug", "%s kicked from %s for sending an error message", current_nick, self.jid); - self:handle_to_occupant(origin, build_unavailable_presence_from_error(stanza)); -- send unavailable - else -- private stanza - local o_data = self._occupants[to]; - if o_data then - log("debug", "%s sent private stanza to %s (%s)", from, to, o_data.jid); - if stanza.name == "iq" then - local id = stanza.attr.id; - if stanza.attr.type == "get" or stanza.attr.type == "set" then - stanza.attr.from, stanza.attr.to, stanza.attr.id = construct_stanza_id(self, stanza); - else - stanza.attr.from, stanza.attr.to, stanza.attr.id = deconstruct_stanza_id(self, stanza); - end - if type == 'get' and stanza.tags[1].attr.xmlns == 'vcard-temp' then - stanza.attr.to = jid_bare(stanza.attr.to); - end - if stanza.attr.id then - self:_route_stanza(stanza); - end - stanza.attr.from, stanza.attr.to, stanza.attr.id = from, to, id; - else -- message - stanza:tag("x", { xmlns = "http://jabber.org/protocol/muc#user" }):up(); - stanza.attr.from = current_nick; - for jid in pairs(o_data.sessions) do - stanza.attr.to = jid; - self:_route_stanza(stanza); - end - stanza.attr.from, stanza.attr.to = from, to; - end - elseif type ~= "error" and type ~= "result" then -- recipient not in room + if not o_data then -- recipient not in room origin.send(st.error_reply(stanza, "cancel", "item-not-found", "Recipient not in room")); + return true; + end + do -- construct_stanza_id + stanza.attr.id = base64.encode(o_data.jid.."\0"..stanza.attr.id.."\0"..md5(from)); + end + stanza.attr.from, stanza.attr.to = current_nick, o_data.jid; + log("debug", "%s sent private iq stanza to %s (%s)", from, to, o_data.jid); + if stanza.tags[1].attr.xmlns == 'vcard-temp' then + stanza.attr.to = jid_bare(stanza.attr.to); + end + self:_route_stanza(stanza); + stanza.attr.from, stanza.attr.to, stanza.attr.id = from, to, id; + return true; + end +end + +function room_mt:handle_message_to_occupant(origin, stanza) + local from, to = stanza.attr.from, stanza.attr.to; + local current_nick = self:get_occupant_jid(from); + local type = stanza.attr.type; + if not current_nick then -- not in room + if type ~= "error" then + origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); end + return true; end + if type == "groupchat" then -- groupchat messages not allowed in PM + origin.send(st.error_reply(stanza, "modify", "bad-request")); + return true; + elseif type == "error" and is_kickable_error(stanza) then + log("debug", "%s kicked from %s for sending an error message", current_nick, self.jid); + return self:handle_kickable(origin, stanza); -- send unavailable + end + + local o_data = self._occupants[to]; + if not o_data then + origin.send(st.error_reply(stanza, "cancel", "item-not-found", "Recipient not in room")); + return true; + end + log("debug", "%s sent private message stanza to %s (%s)", from, to, o_data.jid); + stanza:tag("x", { xmlns = "http://jabber.org/protocol/muc#user" }):up(); + stanza.attr.from = current_nick; + self:route_to_occupant(o_data, stanza) + stanza.attr.from = from; + return true; end function room_mt:send_form(origin, stanza) @@ -591,6 +740,7 @@ function room_mt:send_form(origin, stanza) end function room_mt:get_form_layout(actor) + local whois = self:get_whois() local form = dataform.new({ title = "Configuration for "..self.jid, instructions = "Complete and submit this form to configure the room.", @@ -634,8 +784,8 @@ function room_mt:get_form_layout(actor) type = 'list-single', label = 'Who May Discover Real JIDs?', value = { - { value = 'moderators', label = 'Moderators Only', default = self._data.whois == 'moderators' }, - { value = 'anyone', label = 'Anyone', default = self._data.whois == 'anyone' } + { value = 'moderators', label = 'Moderators Only', default = whois == 'moderators' }, + { value = 'anyone', label = 'Anyone', default = whois == 'anyone' } } }, { @@ -668,8 +818,7 @@ end function room_mt:process_form(origin, stanza) local query = stanza.tags[1]; - local form; - for _, tag in ipairs(query.tags) do if tag.name == "x" and tag.attr.xmlns == "jabber:x:data" then form = tag; break; end end + local form = query:get_child("x", "jabber:x:data") if not form then origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); return; end if form.attr.type == "cancel" then origin.send(st.reply(stanza)); return; end if form.attr.type ~= "submit" then origin.send(st.error_reply(stanza, "cancel", "bad-request", "Not a submitted form")); return; end @@ -704,9 +853,8 @@ function room_mt:process_form(origin, stanza) handle_option("password", "muc#roomconfig_roomsecret"); if self.save then self:save(true); end - if self.locked then - module:fire_event("muc-room-unlocked", { room = self }); - self.locked = nil; + if self:is_locked() then + self:unlock(); end origin.send(st.reply(stanza)); @@ -737,211 +885,296 @@ function room_mt:destroy(newjid, reason, password) self._jid_nick[jid] = nil; end self._occupants[nick] = nil; + module:fire_event("muc-occupant-left", { room = self; nick = nick; }); end self:set_persistent(false); module:fire_event("muc-room-destroyed", { room = self }); end -function room_mt:handle_to_room(origin, stanza) -- presence changes and groupchat messages, along with disco/etc - local type = stanza.attr.type; - local xmlns = stanza.tags[1] and stanza.tags[1].attr.xmlns; - if stanza.name == "iq" then - if xmlns == "http://jabber.org/protocol/disco#info" and type == "get" and not stanza.tags[1].attr.node then - origin.send(self:get_disco_info(stanza)); - elseif xmlns == "http://jabber.org/protocol/disco#items" and type == "get" and not stanza.tags[1].attr.node then - origin.send(self:get_disco_items(stanza)); - elseif xmlns == "http://jabber.org/protocol/muc#admin" then - local actor = stanza.attr.from; - local affiliation = self:get_affiliation(actor); - local current_nick = self._jid_nick[actor]; - local role = current_nick and self._occupants[current_nick].role or self:get_default_role(affiliation); - local item = stanza.tags[1].tags[1]; - if item and item.name == "item" then - if type == "set" then - local callback = function() origin.send(st.reply(stanza)); end - if item.attr.jid then -- Validate provided JID - item.attr.jid = jid_prep(item.attr.jid); - if not item.attr.jid then - origin.send(st.error_reply(stanza, "modify", "jid-malformed")); - return; - end - end - if not item.attr.jid and item.attr.nick then -- COMPAT Workaround for Miranda sending 'nick' instead of 'jid' when changing affiliation - local occupant = self._occupants[self.jid.."/"..item.attr.nick]; - if occupant then item.attr.jid = occupant.jid; end - elseif not item.attr.nick and item.attr.jid then - local nick = self._jid_nick[item.attr.jid]; - if nick then item.attr.nick = select(3, jid_split(nick)); end - end - local reason = item.tags[1] and item.tags[1].name == "reason" and #item.tags[1] == 1 and item.tags[1][1]; - if item.attr.affiliation and item.attr.jid and not item.attr.role then - local success, errtype, err = self:set_affiliation(actor, item.attr.jid, item.attr.affiliation, callback, reason); - if not success then origin.send(st.error_reply(stanza, errtype, err)); end - elseif item.attr.role and item.attr.nick and not item.attr.affiliation then - local success, errtype, err = self:set_role(actor, self.jid.."/"..item.attr.nick, item.attr.role, callback, reason); - if not success then origin.send(st.error_reply(stanza, errtype, err)); end - else - origin.send(st.error_reply(stanza, "cancel", "bad-request")); - end - elseif type == "get" then - local _aff = item.attr.affiliation; - local _rol = item.attr.role; - if _aff and not _rol then - if affiliation == "owner" or (affiliation == "admin" and _aff ~= "owner" and _aff ~= "admin") then - local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); - for jid, affiliation in pairs(self._affiliations) do - if affiliation == _aff then - reply:tag("item", {affiliation = _aff, jid = jid}):up(); - end - end - origin.send(reply); - else - origin.send(st.error_reply(stanza, "auth", "forbidden")); - end - elseif _rol and not _aff then - if role == "moderator" then - -- TODO allow admins and owners not in room? Provide read-only access to everyone who can see the participants anyway? - if _rol == "none" then _rol = nil; end - local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); - for occupant_jid, occupant in pairs(self._occupants) do - if occupant.role == _rol then - reply:tag("item", { - nick = select(3, jid_split(occupant_jid)), - role = _rol or "none", - affiliation = occupant.affiliation or "none", - jid = occupant.jid - }):up(); - end - end - origin.send(reply); - else - origin.send(st.error_reply(stanza, "auth", "forbidden")); - end - else - origin.send(st.error_reply(stanza, "cancel", "bad-request")); - end +function room_mt:handle_disco_info_get_query(origin, stanza) + origin.send(self:get_disco_info(stanza)); + return true; +end + +function room_mt:handle_disco_items_get_query(origin, stanza) + origin.send(self:get_disco_items(stanza)); + return true; +end + +function room_mt:handle_admin_query_set_command(origin, stanza) + local item = stanza.tags[1].tags[1]; + if item.attr.jid then -- Validate provided JID + item.attr.jid = jid_prep(item.attr.jid); + if not item.attr.jid then + origin.send(st.error_reply(stanza, "modify", "jid-malformed")); + return true; + end + end + if not item.attr.jid and item.attr.nick then -- COMPAT Workaround for Miranda sending 'nick' instead of 'jid' when changing affiliation + local occupant = self._occupants[self.jid.."/"..item.attr.nick]; + if occupant then item.attr.jid = occupant.jid; end + elseif not item.attr.nick and item.attr.jid then + local nick = self:get_occupant_jid(item.attr.jid); + if nick then item.attr.nick = select(3, jid_split(nick)); end + end + local actor = stanza.attr.from; + local callback = function() origin.send(st.reply(stanza)); end + local reason = item:get_child_text("reason"); + if item.attr.affiliation and item.attr.jid and not item.attr.role then + local success, errtype, err = self:set_affiliation(actor, item.attr.jid, item.attr.affiliation, callback, reason); + if not success then origin.send(st.error_reply(stanza, errtype, err)); end + return true; + elseif item.attr.role and item.attr.nick and not item.attr.affiliation then + local success, errtype, err = self:set_role(actor, self.jid.."/"..item.attr.nick, item.attr.role, callback, reason); + if not success then origin.send(st.error_reply(stanza, errtype, err)); end + return true; + else + origin.send(st.error_reply(stanza, "cancel", "bad-request")); + return true; + end +end + +function room_mt:handle_admin_query_get_command(origin, stanza) + local actor = stanza.attr.from; + local affiliation = self:get_affiliation(actor); + local item = stanza.tags[1].tags[1]; + local _aff = item.attr.affiliation; + local _rol = item.attr.role; + if _aff and not _rol then + if affiliation == "owner" or (affiliation == "admin" and _aff ~= "owner" and _aff ~= "admin") then + local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); + for jid, affiliation in pairs(self._affiliations) do + if affiliation == _aff then + reply:tag("item", {affiliation = _aff, jid = jid}):up(); end - elseif type == "set" or type == "get" then - origin.send(st.error_reply(stanza, "cancel", "bad-request")); end - elseif xmlns == "http://jabber.org/protocol/muc#owner" and (type == "get" or type == "set") and stanza.tags[1].name == "query" then - if self:get_affiliation(stanza.attr.from) ~= "owner" then - origin.send(st.error_reply(stanza, "auth", "forbidden", "Only owners can configure rooms")); - elseif stanza.attr.type == "get" then - self:send_form(origin, stanza); - elseif stanza.attr.type == "set" then - local child = stanza.tags[1].tags[1]; - if not child then - origin.send(st.error_reply(stanza, "modify", "bad-request")); - elseif child.name == "destroy" then - local newjid = child.attr.jid; - local reason, password; - for _,tag in ipairs(child.tags) do - if tag.name == "reason" then - reason = #tag.tags == 0 and tag[1]; - elseif tag.name == "password" then - password = #tag.tags == 0 and tag[1]; - end - end - self:destroy(newjid, reason, password); - origin.send(st.reply(stanza)); - else - self:process_form(origin, stanza); + origin.send(reply); + return true; + else + origin.send(st.error_reply(stanza, "auth", "forbidden")); + return true; + end + elseif _rol and not _aff then + local role = self:get_role(self:get_occupant_jid(actor)) or self:get_default_role(affiliation); + if role == "moderator" then + if _rol == "none" then _rol = nil; end + local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); + for occupant_jid, occupant in pairs(self._occupants) do + if occupant.role == _rol then + reply:tag("item", { + nick = select(3, jid_split(occupant_jid)), + role = _rol or "none", + affiliation = occupant.affiliation or "none", + jid = occupant.jid + }):up(); end end - elseif type == "set" or type == "get" then - origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); + origin.send(reply); + return true; + else + origin.send(st.error_reply(stanza, "auth", "forbidden")); + return true; end - elseif stanza.name == "message" and type == "groupchat" then + else + origin.send(st.error_reply(stanza, "cancel", "bad-request")); + return true; + end +end + +function room_mt:handle_owner_query_get_to_room(origin, stanza) + if self:get_affiliation(stanza.attr.from) ~= "owner" then + origin.send(st.error_reply(stanza, "auth", "forbidden", "Only owners can configure rooms")); + return true; + end + + self:send_form(origin, stanza); + return true; +end +function room_mt:handle_owner_query_set_to_room(origin, stanza) + if self:get_affiliation(stanza.attr.from) ~= "owner" then + origin.send(st.error_reply(stanza, "auth", "forbidden", "Only owners can configure rooms")); + return true; + end + + local child = stanza.tags[1].tags[1]; + if not child then + origin.send(st.error_reply(stanza, "modify", "bad-request")); + return true; + elseif child.name == "destroy" then + local newjid = child.attr.jid; + local reason = child:get_child_text("reason"); + local password = child:get_child_text("password"); + self:destroy(newjid, reason, password); + origin.send(st.reply(stanza)); + return true; + else + self:process_form(origin, stanza); + return true; + end +end + +function room_mt:handle_groupchat_to_room(origin, stanza) + local from = stanza.attr.from; + local current_nick = self:get_occupant_jid(from); + local occupant = self._occupants[current_nick]; + if not occupant then -- not in room + origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); + return true; + elseif occupant.role == "visitor" then + origin.send(st.error_reply(stanza, "auth", "forbidden")); + return true; + else local from = stanza.attr.from; - local current_nick = self._jid_nick[from]; - local occupant = self._occupants[current_nick]; - if not occupant then -- not in room - origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); - elseif occupant.role == "visitor" then - origin.send(st.error_reply(stanza, "auth", "forbidden")); - else - local from = stanza.attr.from; - stanza.attr.from = current_nick; - local subject = stanza:get_child_text("subject"); - if subject then - if occupant.role == "moderator" or - ( self._data.changesubject and occupant.role == "participant" ) then -- and participant - self:set_subject(current_nick, subject); - else - stanza.attr.from = from; - origin.send(st.error_reply(stanza, "auth", "forbidden")); - end + stanza.attr.from = current_nick; + local subject = stanza:get_child_text("subject"); + if subject then + if occupant.role == "moderator" or + ( self:get_changesubject() and occupant.role == "participant" ) then -- and participant + self:set_subject(current_nick, subject); else - self:broadcast_message(stanza, self:get_historylength() > 0 and stanza:get_child("body")); + stanza.attr.from = from; + origin.send(st.error_reply(stanza, "auth", "forbidden")); end - stanza.attr.from = from; + else + self:broadcast_message(stanza, self:get_historylength() > 0 and stanza:get_child("body")); end - elseif stanza.name == "message" and type == "error" and is_kickable_error(stanza) then - local current_nick = self._jid_nick[stanza.attr.from]; - log("debug", "%s kicked from %s for sending an error message", current_nick, self.jid); - self:handle_to_occupant(origin, build_unavailable_presence_from_error(stanza)); -- send unavailable - elseif stanza.name == "presence" then -- hack - some buggy clients send presence updates to the room rather than their nick + stanza.attr.from = from; + return true; + end +end + +-- hack - some buggy clients send presence updates to the room rather than their nick +function room_mt:handle_presence_to_room(origin, stanza) + local current_nick = self:get_occupant_jid(stanza.attr.from); + local handled + if current_nick then local to = stanza.attr.to; - local current_nick = self._jid_nick[stanza.attr.from]; - if current_nick then - stanza.attr.to = current_nick; - self: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")); + stanza.attr.to = current_nick; + handled = self:handle_presence_to_occupant(origin, stanza); + stanza.attr.to = to; + end + return handled; +end + +function room_mt:handle_mediated_invite(origin, stanza) + local payload = stanza:get_child("x", "http://jabber.org/protocol/muc#user"):get_child("invite") + local _from, _to = stanza.attr.from, stanza.attr.to; + local current_nick = self:get_occupant_jid(_from) + -- Need visitor role or higher to invite + if not self:get_role(current_nick) or not self:get_default_role(self:get_affiliation(_from)) then + origin.send(st.error_reply(stanza, "auth", "forbidden")); + return true; + end + local _invitee = jid_prep(payload.attr.to); + if _invitee then + if self:get_whois() == "moderators" then + _from = current_nick; end - elseif stanza.name == "message" and not(type == "chat" or type == "error" or type == "groupchat" or type == "headline") 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" then - local x = stanza.tags[1]; - local payload = (#x.tags == 1 and x.tags[1]); - if payload and payload.name == "invite" and payload.attr.to then - local _from, _to = stanza.attr.from, stanza.attr.to; - local _invitee = jid_prep(payload.attr.to); - if _invitee then - local _reason = payload.tags[1] and payload.tags[1].name == 'reason' and #payload.tags[1].tags == 0 and payload.tags[1][1]; - local invite = st.message({from = _to, to = _invitee, id = stanza.attr.id}) - :tag('x', {xmlns='http://jabber.org/protocol/muc#user'}) - :tag('invite', {from=_from}) - :tag('reason'):text(_reason or ""):up() - :up(); - if self:get_password() then - invite:tag("password"):text(self:get_password()):up(); - end - invite:up() - :tag('x', {xmlns="jabber:x:conference", jid=_to}) -- COMPAT: Some older clients expect this - :text(_reason or "") - :up() - :tag('body') -- Add a plain message for clients which don't support invites - :text(_from..' invited you to the room '.._to..(_reason and (' ('.._reason..')') or "")) - :up(); - if self:get_members_only() and not self:get_affiliation(_invitee) then - log("debug", "%s invited %s into members only room %s, granting membership", _from, _invitee, _to); - self:set_affiliation(_from, _invitee, "member", nil, "Invited by " .. self._jid_nick[_from]) - end - self:_route_stanza(invite); - else - origin.send(st.error_reply(stanza, "cancel", "jid-malformed")); - end - else - origin.send(st.error_reply(stanza, "cancel", "bad-request")); + local _reason = payload:get_child_text("reason") + local invite = st.message({from = _to, to = _invitee, id = stanza.attr.id}) + :tag('x', {xmlns='http://jabber.org/protocol/muc#user'}) + :tag('invite', {from=_from}) + :tag('reason'):text(_reason or ""):up() + :up(); + local password = self:get_password() + if password then + invite:tag("password"):text(password):up(); end + invite:up() + :tag('x', {xmlns="jabber:x:conference", jid=_to}) -- COMPAT: Some older clients expect this + :text(_reason or "") + :up() + :tag('body') -- Add a plain message for clients which don't support invites + :text(_from..' invited you to the room '.._to..(_reason and (' ('.._reason..')') or "")) + :up(); + module:fire_event("muc-invite", { room = self, stanza = invite, origin = origin, incoming = stanza }); + return true; else - if type == "error" or type == "result" then return; end - origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); + origin.send(st.error_reply(stanza, "cancel", "jid-malformed")); + return true; end end -function room_mt:handle_stanza(origin, stanza) - local to_node, to_host, to_resource = jid_split(stanza.attr.to); - if to_resource then - self:handle_to_occupant(origin, stanza); +module:hook("muc-invite", function(event) + event.room:_route_stanza(event.stanza); + return true; +end, -1) + +-- When an invite is sent; add an affiliation for the invitee +module:hook("muc-invite", function(event) + local room, stanza = event.room, event.stanza + local invitee = stanza.attr.to + if room:get_members_only() and not room:get_affiliation(invitee) then + local from = stanza:get_child("x", "http://jabber.org/protocol/muc#user"):get_child("invite").attr.from + local current_nick = room:get_occupant_jid(from) + log("debug", "%s invited %s into members only room %s, granting membership", from, invitee, room.jid); + room:set_affiliation(from, invitee, "member", nil, "Invited by " .. current_nick) + end +end) + +function room_mt:handle_mediated_decline(origin, stanza) + local payload = stanza:get_child("x", "http://jabber.org/protocol/muc#user"):get_child("decline") + local declinee = jid_prep(payload.attr.to); + if declinee then + local from, to = stanza.attr.from, stanza.attr.to; + -- TODO: Validate declinee + local reason = payload:get_child_text("reason") + local decline = st.message({from = to, to = declinee, id = stanza.attr.id}) + :tag('x', {xmlns='http://jabber.org/protocol/muc#user'}) + :tag('decline', {from=from}) + :tag('reason'):text(reason or ""):up() + :up() + :up() + :tag('body') -- Add a plain message for clients which don't support declines + :text(from..' declined your invite to the room '..to..(reason and (' ('..reason..')') or "")) + :up(); + module:fire_event("muc-decline", { room = self, stanza = decline, origin = origin, incoming = stanza }); + return true; else - self:handle_to_room(origin, stanza); + origin.send(st.error_reply(stanza, "cancel", "jid-malformed")); + return true; end end -function room_mt:route_stanza(stanza) end -- Replace with a routing function, e.g., function(room, stanza) core_route_stanza(origin, stanza); end +module:hook("muc-decline", function(event) + local room, stanza = event.room, event.stanza + local occupant = room:get_occupant_by_real_jid(stanza.attr.to); + if occupant then + room:route_to_occupant(occupant, stanza) + else + room:route_stanza(stanza); + end + return true; +end, -1) + +function room_mt:handle_message_to_room(origin, stanza) + local type = stanza.attr.type; + if type == "groupchat" then + return self:handle_groupchat_to_room(origin, stanza) + elseif type == "error" and is_kickable_error(stanza) then + return self:handle_kickable(origin, stanza) + elseif type == nil then + local x = stanza:get_child("x", "http://jabber.org/protocol/muc#user"); + if x then + local payload = x.tags[1]; + if payload == nil then + -- fallthrough + elseif payload.name == "invite" and payload.attr.to then + return self:handle_mediated_invite(origin, stanza) + elseif payload.name == "decline" and payload.attr.to then + return self:handle_mediated_decline(origin, stanza) + end + origin.send(st.error_reply(stanza, "cancel", "bad-request")); + return true; + end + else + return nil; + end +end + +function room_mt:route_stanza(stanza) + module:send(stanza) +end function room_mt:get_affiliation(jid) local node, host, resource = jid_split(jid); @@ -1031,7 +1264,7 @@ function room_mt:can_set_role(actor_jid, occupant_jid, role) if actor_jid == true then return true; end - local actor = self._occupants[self._jid_nick[actor_jid]]; + local actor = self._occupants[self:get_occupant_jid(actor_jid)]; if actor and actor.role == "moderator" then if occupant.affiliation ~= "owner" and occupant.affiliation ~= "admin" then if actor.affiliation == "owner" or actor.affiliation == "admin" then @@ -1085,11 +1318,11 @@ end function room_mt:_route_stanza(stanza) local muc_child; - local to_occupant = self._occupants[self._jid_nick[stanza.attr.to]]; - local from_occupant = self._occupants[stanza.attr.from]; if stanza.name == "presence" then + local to_occupant = self._occupants[self:get_occupant_jid(stanza.attr.to)]; + local from_occupant = self._occupants[stanza.attr.from]; if to_occupant and from_occupant then - if self._data.whois == 'anyone' then + if self:get_whois() == 'anyone' then muc_child = stanza:get_child("x", "http://jabber.org/protocol/muc#user"); else if to_occupant.role == "moderator" or jid_bare(to_occupant.jid) == jid_bare(from_occupant.jid) then @@ -1097,10 +1330,8 @@ function room_mt:_route_stanza(stanza) end end end - end - if muc_child then - for _, item in pairs(muc_child.tags) do - if item.name == "item" then + if muc_child then + for item in muc_child:childtags("item") do if from_occupant == to_occupant then item.attr.jid = stanza.attr.to; else @@ -1111,10 +1342,8 @@ function room_mt:_route_stanza(stanza) end self:route_stanza(stanza); if muc_child then - for _, item in pairs(muc_child.tags) do - if item.name == "item" then - item.attr.jid = nil; - end + for item in muc_child:childtags("item") do + item.attr.jid = nil; end end end @@ -1124,6 +1353,7 @@ local _M = {}; -- module "muc" function _M.new_room(jid, config) return setmetatable({ jid = jid; + locked = nil; _jid_nick = {}; _occupants = {}; _data = { |