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1163 lines
43 KiB
1163 lines
43 KiB
-- Prosody IM
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-- Copyright (C) 2008-2010 Matthew Wild
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-- Copyright (C) 2008-2010 Waqas Hussain
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--
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-- This project is MIT/X11 licensed. Please see the
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-- COPYING file in the source package for more information.
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--
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local select = select;
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local pairs, ipairs = pairs, ipairs;
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local datetime = require "util.datetime";
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local dataform = require "util.dataforms";
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local jid_split = require "util.jid".split;
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local jid_bare = require "util.jid".bare;
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local jid_prep = require "util.jid".prep;
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local st = require "util.stanza";
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local log = require "util.logger".init("mod_muc");
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local t_insert, t_remove = table.insert, table.remove;
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local setmetatable = setmetatable;
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local base64 = require "util.encodings".base64;
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local md5 = require "util.hashes".md5;
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local muc_domain = nil; --module:get_host();
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local default_history_length, max_history_length = 20, math.huge;
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------------
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local presence_filters = {["http://jabber.org/protocol/muc"]=true;["http://jabber.org/protocol/muc#user"]=true};
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local function presence_filter(tag)
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if presence_filters[tag.attr.xmlns] then
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return nil;
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end
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return tag;
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end
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local function get_filtered_presence(stanza)
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return st.clone(stanza):maptags(presence_filter);
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end
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local kickable_error_conditions = {
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["gone"] = true;
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["internal-server-error"] = true;
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["item-not-found"] = true;
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["jid-malformed"] = true;
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["recipient-unavailable"] = true;
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["redirect"] = true;
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["remote-server-not-found"] = true;
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["remote-server-timeout"] = true;
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["service-unavailable"] = true;
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["malformed error"] = true;
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};
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local function get_error_condition(stanza)
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local _, condition = stanza:get_error();
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return condition or "malformed error";
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end
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local function is_kickable_error(stanza)
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local cond = get_error_condition(stanza);
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return kickable_error_conditions[cond] and cond;
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end
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-----------
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local room_mt = {};
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room_mt.__index = room_mt;
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function room_mt:__tostring()
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return "MUC room ("..self.jid..")";
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end
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function room_mt:get_default_role(affiliation)
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if affiliation == "owner" or affiliation == "admin" then
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return "moderator";
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elseif affiliation == "member" then
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return "participant";
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elseif not affiliation then
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if not self:get_members_only() then
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return self:get_moderated() and "visitor" or "participant";
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end
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end
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end
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function room_mt:broadcast_presence(stanza, sid, code, nick)
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stanza = get_filtered_presence(stanza);
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local occupant = self._occupants[stanza.attr.from];
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stanza:tag("x", {xmlns='http://jabber.org/protocol/muc#user'})
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:tag("item", {affiliation=occupant.affiliation or "none", role=occupant.role or "none", nick=nick}):up();
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if code then
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stanza:tag("status", {code=code}):up();
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end
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self:broadcast_except_nick(stanza, stanza.attr.from);
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local me = self._occupants[stanza.attr.from];
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if me then
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stanza:tag("status", {code='110'}):up();
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stanza.attr.to = sid;
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self:_route_stanza(stanza);
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end
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end
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function room_mt:broadcast_message(stanza, historic)
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local to = stanza.attr.to;
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for occupant, o_data in pairs(self._occupants) do
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for jid in pairs(o_data.sessions) do
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stanza.attr.to = jid;
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self:_route_stanza(stanza);
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end
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end
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stanza.attr.to = to;
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if historic then -- add to history
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return self:save_to_history(stanza)
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end
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end
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function room_mt:save_to_history(stanza)
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local history = self._data['history'];
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if not history then history = {}; self._data['history'] = history; end
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stanza = st.clone(stanza);
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stanza.attr.to = "";
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local stamp = datetime.datetime();
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stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = muc_domain, stamp = stamp}):up(); -- XEP-0203
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stanza:tag("x", {xmlns = "jabber:x:delay", from = muc_domain, stamp = datetime.legacy()}):up(); -- XEP-0091 (deprecated)
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local entry = { stanza = stanza, stamp = stamp };
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t_insert(history, entry);
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while #history > (self._data.history_length or default_history_length) do t_remove(history, 1) end
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end
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function room_mt:broadcast_except_nick(stanza, nick)
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for rnick, occupant in pairs(self._occupants) do
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if rnick ~= nick then
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for jid in pairs(occupant.sessions) do
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stanza.attr.to = jid;
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self:_route_stanza(stanza);
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end
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end
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end
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end
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function room_mt:send_occupant_list(to)
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local current_nick = self._jid_nick[to];
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for occupant, o_data in pairs(self._occupants) do
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if occupant ~= current_nick then
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local pres = get_filtered_presence(o_data.sessions[o_data.jid]);
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pres.attr.to, pres.attr.from = to, occupant;
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pres:tag("x", {xmlns='http://jabber.org/protocol/muc#user'})
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:tag("item", {affiliation=o_data.affiliation or "none", role=o_data.role or "none"}):up();
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self:_route_stanza(pres);
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end
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end
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end
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function room_mt:send_history(to, stanza)
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local history = self._data['history']; -- send discussion history
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if history then
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local x_tag = stanza and stanza:get_child("x", "http://jabber.org/protocol/muc");
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local history_tag = x_tag and x_tag:get_child("history", "http://jabber.org/protocol/muc");
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local maxchars = history_tag and tonumber(history_tag.attr.maxchars);
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if maxchars then maxchars = math.floor(maxchars); end
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local maxstanzas = math.floor(history_tag and tonumber(history_tag.attr.maxstanzas) or #history);
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if not history_tag then maxstanzas = 20; end
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local seconds = history_tag and tonumber(history_tag.attr.seconds);
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if seconds then seconds = datetime.datetime(os.time() - math.floor(seconds)); end
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local since = history_tag and history_tag.attr.since;
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if since then since = datetime.parse(since); since = since and datetime.datetime(since); end
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if seconds and (not since or since < seconds) then since = seconds; end
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local n = 0;
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local charcount = 0;
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for i=#history,1,-1 do
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local entry = history[i];
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if maxchars then
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if not entry.chars then
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entry.stanza.attr.to = "";
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entry.chars = #tostring(entry.stanza);
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end
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charcount = charcount + entry.chars + #to;
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if charcount > maxchars then break; end
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end
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if since and since > entry.stamp then break; end
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if n + 1 > maxstanzas then break; end
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n = n + 1;
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end
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for i=#history-n+1,#history do
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local msg = history[i].stanza;
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msg.attr.to = to;
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self:_route_stanza(msg);
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end
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end
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end
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function room_mt:send_subject(to)
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if self._data['subject'] then
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self:_route_stanza(st.message({type='groupchat', from=self._data['subject_from'] or self.jid, to=to}):tag("subject"):text(self._data['subject']));
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end
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end
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function room_mt:get_disco_info(stanza)
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local count = 0; for _ in pairs(self._occupants) do count = count + 1; end
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local reply = st.reply(stanza):query("http://jabber.org/protocol/disco#info")
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:tag("identity", {category="conference", type="text", name=self:get_name()}):up()
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:tag("feature", {var="http://jabber.org/protocol/muc"}):up()
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:tag("feature", {var=self:get_password() and "muc_passwordprotected" or "muc_unsecured"}):up()
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:tag("feature", {var=self:get_moderated() and "muc_moderated" or "muc_unmoderated"}):up()
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:tag("feature", {var=self:get_members_only() and "muc_membersonly" or "muc_open"}):up()
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:tag("feature", {var=self:get_persistent() and "muc_persistent" or "muc_temporary"}):up()
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:tag("feature", {var=self:get_hidden() and "muc_hidden" or "muc_public"}):up()
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:tag("feature", {var=self._data.whois ~= "anyone" and "muc_semianonymous" or "muc_nonanonymous"}):up()
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;
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local dataform = dataform.new({
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{ name = "FORM_TYPE", type = "hidden", value = "http://jabber.org/protocol/muc#roominfo" },
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{ name = "muc#roominfo_description", label = "Description", value = "" },
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{ name = "muc#roominfo_occupants", label = "Number of occupants", value = "" }
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});
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local formdata = {
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["muc#roominfo_description"] = self:get_description(),
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["muc#roominfo_occupants"] = tostring(count),
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};
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module:fire_event("muc-disco#info", { room = self, reply = reply, form = dataform, formdata = formdata });
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reply:add_child(dataform:form(formdata, 'result'))
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return reply;
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end
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function room_mt:get_disco_items(stanza)
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local reply = st.reply(stanza):query("http://jabber.org/protocol/disco#items");
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for room_jid in pairs(self._occupants) do
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reply:tag("item", {jid = room_jid, name = room_jid:match("/(.*)")}):up();
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end
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return reply;
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end
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function room_mt:set_subject(current_nick, subject)
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if subject == "" then subject = nil; end
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self._data['subject'] = subject;
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self._data['subject_from'] = current_nick;
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if self.save then self:save(); end
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local msg = st.message({type='groupchat', from=current_nick})
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:tag('subject'):text(subject):up();
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self:broadcast_message(msg, false);
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return true;
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end
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local function build_unavailable_presence_from_error(stanza)
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local type, condition, text = stanza:get_error();
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local error_message = "Kicked: "..(condition and condition:gsub("%-", " ") or "presence error");
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if text then
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error_message = error_message..": "..text;
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end
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return st.presence({type='unavailable', from=stanza.attr.from, to=stanza.attr.to})
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:tag('status'):text(error_message);
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end
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function room_mt:set_name(name)
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if name == "" or type(name) ~= "string" or name == (jid_split(self.jid)) then name = nil; end
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if self._data.name ~= name then
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self._data.name = name;
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if self.save then self:save(true); end
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end
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end
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function room_mt:get_name()
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return self._data.name or jid_split(self.jid);
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end
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function room_mt:set_description(description)
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if description == "" or type(description) ~= "string" then description = nil; end
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if self._data.description ~= description then
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self._data.description = description;
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if self.save then self:save(true); end
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end
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end
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function room_mt:get_description()
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return self._data.description;
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end
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function room_mt:set_password(password)
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if password == "" or type(password) ~= "string" then password = nil; end
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if self._data.password ~= password then
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self._data.password = password;
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if self.save then self:save(true); end
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end
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end
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function room_mt:get_password()
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return self._data.password;
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end
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function room_mt:set_moderated(moderated)
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moderated = moderated and true or nil;
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if self._data.moderated ~= moderated then
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self._data.moderated = moderated;
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if self.save then self:save(true); end
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end
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end
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function room_mt:get_moderated()
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return self._data.moderated;
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end
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function room_mt:set_members_only(members_only)
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members_only = members_only and true or nil;
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if self._data.members_only ~= members_only then
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self._data.members_only = members_only;
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if self.save then self:save(true); end
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end
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end
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function room_mt:get_members_only()
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return self._data.members_only;
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end
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function room_mt:set_persistent(persistent)
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persistent = persistent and true or nil;
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if self._data.persistent ~= persistent then
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self._data.persistent = persistent;
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if self.save then self:save(true); end
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end
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end
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function room_mt:get_persistent()
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return self._data.persistent;
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end
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function room_mt:set_hidden(hidden)
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hidden = hidden and true or nil;
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if self._data.hidden ~= hidden then
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self._data.hidden = hidden;
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if self.save then self:save(true); end
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end
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end
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function room_mt:get_hidden()
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return self._data.hidden;
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end
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function room_mt:get_public()
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return not self:get_hidden();
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end
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function room_mt:set_public(public)
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return self:set_hidden(not public);
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end
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function room_mt:set_changesubject(changesubject)
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changesubject = changesubject and true or nil;
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if self._data.changesubject ~= changesubject then
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self._data.changesubject = changesubject;
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if self.save then self:save(true); end
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end
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end
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function room_mt:get_changesubject()
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return self._data.changesubject;
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end
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function room_mt:get_historylength()
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return self._data.history_length or default_history_length;
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end
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function room_mt:set_historylength(length)
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length = math.min(tonumber(length) or default_history_length, max_history_length or math.huge);
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if length == default_history_length then
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length = nil;
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end
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self._data.history_length = length;
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end
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local valid_whois = { moderators = true, anyone = true };
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function room_mt:set_whois(whois)
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if valid_whois[whois] and self._data.whois ~= whois then
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self._data.whois = whois;
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if self.save then self:save(true); end
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end
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end
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function room_mt:get_whois()
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return self._data.whois;
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end
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local function construct_stanza_id(room, stanza)
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local from_jid, to_nick = stanza.attr.from, stanza.attr.to;
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local from_nick = room._jid_nick[from_jid];
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local occupant = room._occupants[to_nick];
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local to_jid = occupant.jid;
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return from_nick, to_jid, base64.encode(to_jid.."\0"..stanza.attr.id.."\0"..md5(from_jid));
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end
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local function deconstruct_stanza_id(room, stanza)
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local from_jid_possiblybare, to_nick = stanza.attr.from, stanza.attr.to;
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local from_jid, id, to_jid_hash = (base64.decode(stanza.attr.id) or ""):match("^(%Z+)%z(%Z*)%z(.+)$");
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local from_nick = room._jid_nick[from_jid];
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if not(from_nick) then return; end
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if not(from_jid_possiblybare == from_jid or from_jid_possiblybare == jid_bare(from_jid)) then return; end
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local occupant = room._occupants[to_nick];
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for to_jid in pairs(occupant and occupant.sessions or {}) do
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if md5(to_jid) == to_jid_hash then
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return from_nick, to_jid, id;
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end
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end
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end
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function room_mt:handle_to_occupant(origin, stanza) -- PM, vCards, etc
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local from, to = stanza.attr.from, stanza.attr.to;
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local room = jid_bare(to);
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local current_nick = self._jid_nick[from];
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local type = stanza.attr.type;
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log("debug", "room: %s, current_nick: %s, stanza: %s", room or "nil", current_nick or "nil", stanza:top_tag());
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if (select(2, jid_split(from)) == muc_domain) then error("Presence from the MUC itself!!!"); end
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if stanza.name == "presence" then
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local pr = get_filtered_presence(stanza);
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pr.attr.from = current_nick;
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if type == "error" then -- error, kick em out!
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if current_nick then
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log("debug", "kicking %s from %s", current_nick, room);
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self:handle_to_occupant(origin, build_unavailable_presence_from_error(stanza));
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end
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elseif type == "unavailable" then -- unavailable
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if current_nick then
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log("debug", "%s leaving %s", current_nick, room);
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self._jid_nick[from] = nil;
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local occupant = self._occupants[current_nick];
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local new_jid = next(occupant.sessions);
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if new_jid == from then new_jid = next(occupant.sessions, new_jid); end
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if new_jid then
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local jid = occupant.jid;
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occupant.jid = new_jid;
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occupant.sessions[from] = nil;
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pr.attr.to = from;
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pr:tag("x", {xmlns='http://jabber.org/protocol/muc#user'})
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:tag("item", {affiliation=occupant.affiliation or "none", role='none'}):up()
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:tag("status", {code='110'}):up();
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self:_route_stanza(pr);
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if jid ~= new_jid then
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pr = st.clone(occupant.sessions[new_jid])
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:tag("x", {xmlns='http://jabber.org/protocol/muc#user'})
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:tag("item", {affiliation=occupant.affiliation or "none", role=occupant.role or "none"});
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pr.attr.from = current_nick;
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self:broadcast_except_nick(pr, current_nick);
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end
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else
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occupant.role = 'none';
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self:broadcast_presence(pr, from);
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self._occupants[current_nick] = nil;
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end
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end
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elseif not type then -- available
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if current_nick then
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--if #pr == #stanza or current_nick ~= to then -- commented because google keeps resending directed presence
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if current_nick == to then -- simple presence
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log("debug", "%s broadcasted presence", current_nick);
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self._occupants[current_nick].sessions[from] = pr;
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self:broadcast_presence(pr, from);
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else -- change nick
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local occupant = self._occupants[current_nick];
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local is_multisession = next(occupant.sessions, next(occupant.sessions));
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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
|
|
module:log("debug", "Room is locked, denying 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
|
|
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
|
|
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
|
|
origin.send(st.error_reply(stanza, "cancel", "not-acceptable"));
|
|
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
|
|
origin.send(st.error_reply(stanza, "cancel", "item-not-found", "Recipient not in room"));
|
|
end
|
|
end
|
|
end
|
|
|
|
function room_mt:send_form(origin, stanza)
|
|
origin.send(st.reply(stanza):query("http://jabber.org/protocol/muc#owner")
|
|
:add_child(self:get_form_layout(stanza.attr.from):form())
|
|
);
|
|
end
|
|
|
|
function room_mt:get_form_layout(actor)
|
|
local form = dataform.new({
|
|
title = "Configuration for "..self.jid,
|
|
instructions = "Complete and submit this form to configure the room.",
|
|
{
|
|
name = 'FORM_TYPE',
|
|
type = 'hidden',
|
|
value = 'http://jabber.org/protocol/muc#roomconfig'
|
|
},
|
|
{
|
|
name = 'muc#roomconfig_roomname',
|
|
type = 'text-single',
|
|
label = 'Name',
|
|
value = self:get_name() or "",
|
|
},
|
|
{
|
|
name = 'muc#roomconfig_roomdesc',
|
|
type = 'text-single',
|
|
label = 'Description',
|
|
value = self:get_description() or "",
|
|
},
|
|
{
|
|
name = 'muc#roomconfig_persistentroom',
|
|
type = 'boolean',
|
|
label = 'Make Room Persistent?',
|
|
value = self:get_persistent()
|
|
},
|
|
{
|
|
name = 'muc#roomconfig_publicroom',
|
|
type = 'boolean',
|
|
label = 'Make Room Publicly Searchable?',
|
|
value = not self:get_hidden()
|
|
},
|
|
{
|
|
name = 'muc#roomconfig_changesubject',
|
|
type = 'boolean',
|
|
label = 'Allow Occupants to Change Subject?',
|
|
value = self:get_changesubject()
|
|
},
|
|
{
|
|
name = 'muc#roomconfig_whois',
|
|
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' }
|
|
}
|
|
},
|
|
{
|
|
name = 'muc#roomconfig_roomsecret',
|
|
type = 'text-private',
|
|
label = 'Password',
|
|
value = self:get_password() or "",
|
|
},
|
|
{
|
|
name = 'muc#roomconfig_moderatedroom',
|
|
type = 'boolean',
|
|
label = 'Make Room Moderated?',
|
|
value = self:get_moderated()
|
|
},
|
|
{
|
|
name = 'muc#roomconfig_membersonly',
|
|
type = 'boolean',
|
|
label = 'Make Room Members-Only?',
|
|
value = self:get_members_only()
|
|
},
|
|
{
|
|
name = 'muc#roomconfig_historylength',
|
|
type = 'text-single',
|
|
label = 'Maximum Number of History Messages Returned by Room',
|
|
value = tostring(self:get_historylength())
|
|
}
|
|
});
|
|
return module:fire_event("muc-config-form", { room = self, actor = actor, form = form }) or form;
|
|
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
|
|
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
|
|
|
|
if form.tags[1] == nil then
|
|
-- instant room
|
|
if self.save then self:save(true); end
|
|
origin.send(st.reply(stanza));
|
|
return true;
|
|
end
|
|
|
|
local fields, errors, present = self:get_form_layout(stanza.attr.from):data(form);
|
|
if fields.FORM_TYPE ~= "http://jabber.org/protocol/muc#roomconfig" then
|
|
origin.send(st.error_reply(stanza, "cancel", "bad-request", "Form is not of type room configuration"));
|
|
return;
|
|
end
|
|
|
|
local changed = {};
|
|
|
|
local function handle_option(name, field, allowed)
|
|
if not present[field] then return; end
|
|
local new = fields[field];
|
|
if allowed and not allowed[new] then return; end
|
|
if new == self["get_"..name](self) then return; end
|
|
changed[name] = true;
|
|
self["set_"..name](self, new);
|
|
end
|
|
|
|
local event = { room = self, fields = fields, changed = changed, stanza = stanza, origin = origin, update_option = handle_option };
|
|
module:fire_event("muc-config-submitted", event);
|
|
|
|
handle_option("name", "muc#roomconfig_roomname");
|
|
handle_option("description", "muc#roomconfig_roomdesc");
|
|
handle_option("persistent", "muc#roomconfig_persistentroom");
|
|
handle_option("moderated", "muc#roomconfig_moderatedroom");
|
|
handle_option("members_only", "muc#roomconfig_membersonly");
|
|
handle_option("public", "muc#roomconfig_publicroom");
|
|
handle_option("changesubject", "muc#roomconfig_changesubject");
|
|
handle_option("historylength", "muc#roomconfig_historylength");
|
|
handle_option("whois", "muc#roomconfig_whois", valid_whois);
|
|
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;
|
|
end
|
|
origin.send(st.reply(stanza));
|
|
|
|
if next(changed) then
|
|
local msg = st.message({type='groupchat', from=self.jid})
|
|
:tag('x', {xmlns='http://jabber.org/protocol/muc#user'})
|
|
:tag('status', {code = '104'}):up();
|
|
if changed.whois then
|
|
local code = (self:get_whois() == 'moderators') and "173" or "172";
|
|
msg.tags[1]:tag('status', {code = code}):up();
|
|
end
|
|
self:broadcast_message(msg, false)
|
|
end
|
|
end
|
|
|
|
function room_mt:destroy(newjid, reason, password)
|
|
local pr = st.presence({type = "unavailable"})
|
|
:tag("x", {xmlns = "http://jabber.org/protocol/muc#user"})
|
|
:tag("item", { affiliation='none', role='none' }):up()
|
|
:tag("destroy", {jid=newjid})
|
|
if reason then pr:tag("reason"):text(reason):up(); end
|
|
if password then pr:tag("password"):text(password):up(); end
|
|
for nick, occupant in pairs(self._occupants) do
|
|
pr.attr.from = nick;
|
|
for jid in pairs(occupant.sessions) do
|
|
pr.attr.to = jid;
|
|
self:_route_stanza(pr);
|
|
self._jid_nick[jid] = nil;
|
|
end
|
|
self._occupants[nick] = nil;
|
|
end
|
|
self:set_persistent(false);
|
|
module:fire_event("muc-room-destroyed", { room = self });
|
|
return true;
|
|
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")
|
|
or (affiliation and affiliation ~= "outcast" and self:get_members_only() and self:get_whois() == "anyone") 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
|
|
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);
|
|
end
|
|
end
|
|
elseif type == "set" or type == "get" then
|
|
origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
|
|
end
|
|
elseif stanza.name == "message" and type == "groupchat" then
|
|
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
|
|
else
|
|
self:broadcast_message(stanza, self:get_historylength() > 0 and stanza:get_child("body"));
|
|
end
|
|
stanza.attr.from = from;
|
|
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
|
|
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"));
|
|
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"));
|
|
end
|
|
else
|
|
if type == "error" or type == "result" then return; end
|
|
origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
|
|
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);
|
|
else
|
|
self:handle_to_room(origin, stanza);
|
|
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
|
|
|
|
function room_mt:get_affiliation(jid)
|
|
local node, host, resource = jid_split(jid);
|
|
local bare = node and node.."@"..host or host;
|
|
local result = self._affiliations[bare]; -- Affiliations are granted, revoked, and maintained based on the user's bare JID.
|
|
if not result and self._affiliations[host] == "outcast" then result = "outcast"; end -- host banned
|
|
return result;
|
|
end
|
|
function room_mt:set_affiliation(actor, jid, affiliation, callback, reason)
|
|
jid = jid_bare(jid);
|
|
if affiliation == "none" then affiliation = nil; end
|
|
if affiliation and affiliation ~= "outcast" and affiliation ~= "owner" and affiliation ~= "admin" and affiliation ~= "member" then
|
|
return nil, "modify", "not-acceptable";
|
|
end
|
|
if actor ~= true then
|
|
local actor_affiliation = self:get_affiliation(actor);
|
|
local target_affiliation = self:get_affiliation(jid);
|
|
if target_affiliation == affiliation then -- no change, shortcut
|
|
if callback then callback(); end
|
|
return true;
|
|
end
|
|
if actor_affiliation ~= "owner" then
|
|
if affiliation == "owner" or affiliation == "admin" or actor_affiliation ~= "admin" or target_affiliation == "owner" or target_affiliation == "admin" then
|
|
return nil, "cancel", "not-allowed";
|
|
end
|
|
elseif target_affiliation == "owner" and jid_bare(actor) == jid then -- self change
|
|
local is_last = true;
|
|
for j, aff in pairs(self._affiliations) do if j ~= jid and aff == "owner" then is_last = false; break; end end
|
|
if is_last then
|
|
return nil, "cancel", "conflict";
|
|
end
|
|
end
|
|
end
|
|
self._affiliations[jid] = affiliation;
|
|
local role = self:get_default_role(affiliation);
|
|
local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"})
|
|
:tag("item", {affiliation=affiliation or "none", role=role or "none"})
|
|
:tag("reason"):text(reason or ""):up()
|
|
:up();
|
|
local presence_type = nil;
|
|
if not role then -- getting kicked
|
|
presence_type = "unavailable";
|
|
if affiliation == "outcast" then
|
|
x:tag("status", {code="301"}):up(); -- banned
|
|
else
|
|
x:tag("status", {code="321"}):up(); -- affiliation change
|
|
end
|
|
end
|
|
local modified_nicks = {};
|
|
for nick, occupant in pairs(self._occupants) do
|
|
if jid_bare(occupant.jid) == jid then
|
|
if not role then -- getting kicked
|
|
self._occupants[nick] = nil;
|
|
else
|
|
occupant.affiliation, occupant.role = affiliation, role;
|
|
end
|
|
for jid,pres in pairs(occupant.sessions) do -- remove for all sessions of the nick
|
|
if not role then self._jid_nick[jid] = nil; end
|
|
local p = st.clone(pres);
|
|
p.attr.from = nick;
|
|
p.attr.type = presence_type;
|
|
p.attr.to = jid;
|
|
p:add_child(x);
|
|
self:_route_stanza(p);
|
|
if occupant.jid == jid then
|
|
modified_nicks[nick] = p;
|
|
end
|
|
end
|
|
end
|
|
end
|
|
if self.save then self:save(); end
|
|
if callback then callback(); end
|
|
for nick,p in pairs(modified_nicks) do
|
|
p.attr.from = nick;
|
|
self:broadcast_except_nick(p, nick);
|
|
end
|
|
return true;
|
|
end
|
|
|
|
function room_mt:get_role(nick)
|
|
local session = self._occupants[nick];
|
|
return session and session.role or nil;
|
|
end
|
|
function room_mt:can_set_role(actor_jid, occupant_jid, role)
|
|
local occupant = self._occupants[occupant_jid];
|
|
if not occupant or not actor_jid then return nil, "modify", "not-acceptable"; end
|
|
|
|
if actor_jid == true then return true; end
|
|
|
|
local actor = self._occupants[self._jid_nick[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
|
|
return true;
|
|
elseif occupant.role ~= "moderator" and role ~= "moderator" then
|
|
return true;
|
|
end
|
|
end
|
|
end
|
|
return nil, "cancel", "not-allowed";
|
|
end
|
|
function room_mt:set_role(actor, occupant_jid, role, callback, reason)
|
|
if role == "none" then role = nil; end
|
|
if role and role ~= "moderator" and role ~= "participant" and role ~= "visitor" then return nil, "modify", "not-acceptable"; end
|
|
local allowed, err_type, err_condition = self:can_set_role(actor, occupant_jid, role);
|
|
if not allowed then return allowed, err_type, err_condition; end
|
|
local occupant = self._occupants[occupant_jid];
|
|
local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"})
|
|
:tag("item", {affiliation=occupant.affiliation or "none", nick=select(3, jid_split(occupant_jid)), role=role or "none"})
|
|
:tag("reason"):text(reason or ""):up()
|
|
:up();
|
|
local presence_type = nil;
|
|
if not role then -- kick
|
|
presence_type = "unavailable";
|
|
self._occupants[occupant_jid] = nil;
|
|
for jid in pairs(occupant.sessions) do -- remove for all sessions of the nick
|
|
self._jid_nick[jid] = nil;
|
|
end
|
|
x:tag("status", {code = "307"}):up();
|
|
else
|
|
occupant.role = role;
|
|
end
|
|
local bp;
|
|
for jid,pres in pairs(occupant.sessions) do -- send to all sessions of the nick
|
|
local p = st.clone(pres);
|
|
p.attr.from = occupant_jid;
|
|
p.attr.type = presence_type;
|
|
p.attr.to = jid;
|
|
p:add_child(x);
|
|
self:_route_stanza(p);
|
|
if occupant.jid == jid then
|
|
bp = p;
|
|
end
|
|
end
|
|
if callback then callback(); end
|
|
if bp then
|
|
self:broadcast_except_nick(bp, occupant_jid);
|
|
end
|
|
return true;
|
|
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
|
|
if to_occupant and from_occupant then
|
|
if self._data.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
|
|
muc_child = stanza:get_child("x", "http://jabber.org/protocol/muc#user");
|
|
end
|
|
end
|
|
end
|
|
end
|
|
if muc_child then
|
|
for _, item in pairs(muc_child.tags) do
|
|
if item.name == "item" then
|
|
if from_occupant == to_occupant then
|
|
item.attr.jid = stanza.attr.to;
|
|
else
|
|
item.attr.jid = from_occupant.jid;
|
|
end
|
|
end
|
|
end
|
|
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
|
|
end
|
|
end
|
|
end
|
|
|
|
local _M = {}; -- module "muc"
|
|
|
|
function _M.new_room(jid, config)
|
|
return setmetatable({
|
|
jid = jid;
|
|
_jid_nick = {};
|
|
_occupants = {};
|
|
_data = {
|
|
whois = 'moderators';
|
|
history_length = math.min((config and config.history_length)
|
|
or default_history_length, max_history_length);
|
|
};
|
|
_affiliations = {};
|
|
}, room_mt);
|
|
end
|
|
|
|
function _M.set_max_history_length(_max_history_length)
|
|
max_history_length = _max_history_length or math.huge;
|
|
end
|
|
|
|
_M.room_mt = room_mt;
|
|
|
|
return _M;
|
|
|