Diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_compat_muc_admin/mod_compat_muc_admin.lua	Tue Mar 27 15:49:31 2012 +0000
@@ -0,0 +1,221 @@
+local st = require "util.stanza";
+local jid_split = require "util.jid".split;
+local jid_bare = require "util.jid".bare;
+local jid_prep = require "util.jid".prep;
+local log = require "util.logger".init("mod_muc");
+local muc_host = module:get_host();
+
+if not hosts[muc_host].modules.muc then -- Not a MUC host
+	module:log("error", "this module can only be used on muc hosts."); return false;
+end
+
+local xmlns_ma, xmlns_mo = "http://jabber.org/protocol/muc#admin", "http://jabber.org/protocol/muc#owner";
+
+-- COMPAT: iq condensed function
+hosts[muc_host].modules.muc.stanza_handler.muc_new_room.room_mt["compat_iq"] = function (self, origin, stanza, xmlns)
+	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 stanza.attr.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 stanza.attr.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(xmlns);
+					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(xmlns);
+					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 stanza.attr.type == "set" or stanza.attr.type == "get" then
+		origin.send(st.error_reply(stanza, "cancel", "bad-request"));
+	end
+end
+
+-- COMPAT: reworked handle_to_room function
+hosts[muc_host].modules.muc.stanza_handler.muc_new_room.room_mt["handle_to_room"] = function (self, origin, stanza)
+	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" then
+			origin.send(self:get_disco_info(stanza));
+		elseif xmlns == "http://jabber.org/protocol/disco#items" and type == "get" then
+			origin.send(self:get_disco_items(stanza));
+		elseif (xmlns == xmlns_ma or xmlns == xmlns_mo) then
+			if xmlns == xmlns_ma then
+				self:compat_iq(origin, stanza, xmlns);
+			elseif xmlns == xmlns_mo and stanza.tags[1].name == "query" and #stanza.tags[1].tags == 0 and
+			       stanza.attr.type == "get" then -- form request
+				if self:get_affiliation(stanza.attr.from) ~= "owner" then
+					origin.send(st.error_reply(stanza, "auth", "forbidden", "Only owners can configure rooms"));
+				else
+					self:send_form(origin, stanza);
+				end
+			elseif xmlns == xmlns_mo and stanza.tags[1].name == "query" and stanza.tags[1]:get_child("x", "jabber:x:data") and
+			       stanza.attr.type == "set" then
+				if self:get_affiliation(stanza.attr.from) ~= "owner" then
+					origin.send(st.error_reply(stanza, "auth", "forbidden", "Only owners can configure rooms"));
+				else
+					self:process_form(origin, stanza);
+				end
+			elseif xmlns == xmlns_mo and stanza.tags[1].tags[1] then
+				local child = stanza.tags[1].tags[1];
+				if 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:compat_iq(origin, stanza, xmlns);
+				end
+			else
+				origin.send(st.error_reply(stanza, "modify", "bad-request"));
+			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, to = stanza.attr.from, stanza.attr.to;
+		local room = jid_bare(to);
+		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, "cancel", "forbidden"));
+		else
+			local from = stanza.attr.from;
+			stanza.attr.from = current_nick;
+			local subject = getText(stanza, {"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); -- TODO use broadcast_message_stanza
+				else
+					stanza.attr.from = from;
+					origin.send(st.error_reply(stanza, "cancel", "forbidden"));
+				end
+			else
+				self:broadcast_message(stanza, true);
+			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 stanza.attr.type and #stanza.tags == 1 and self._jid_nick[stanza.attr.from]
+		and stanza.tags[1].name == "x" and stanza.tags[1].attr.xmlns == "http://jabber.org/protocol/muc#user" 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:is_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
+
+