diff options
| -rw-r--r-- | plugins/muc/muc.lib.lua | 52 |
1 files changed, 45 insertions, 7 deletions
diff --git a/plugins/muc/muc.lib.lua b/plugins/muc/muc.lib.lua index e6f459ae..d75bb96f 100644 --- a/plugins/muc/muc.lib.lua +++ b/plugins/muc/muc.lib.lua @@ -122,9 +122,13 @@ function room_mt:broadcast_message(stanza, historic) local history = self._data['history']; if not history then history = {}; self._data['history'] = history; end stanza = st.clone(stanza); - stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = muc_domain, stamp = datetime.datetime()}):up(); -- XEP-0203 + stanza.attr.to = ""; + local stamp = datetime.datetime(); + local chars = #tostring(stanza); + 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) - t_insert(history, st.preserialize(stanza)); + local entry = { stanza = stanza, stamp = stamp }; + t_insert(history, entry); while #history > history_length do t_remove(history, 1) end end end @@ -151,12 +155,46 @@ function room_mt:send_occupant_list(to) end end end -function room_mt:send_history(to) +function room_mt:send_history(to, stanza) local history = self._data['history']; -- send discussion history if history then - for _, msg in ipairs(history) do - msg = st.deserialize(msg); - msg.attr.to=to; + 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 maxstanzas = math.floor(history_tag and tonumber(history_tag.attr.maxstanzas) or #history); + if not history_tag then maxstanzas = 20; end + + local seconds = history_tag and tonumber(history_tag.attr.seconds); + if seconds then seconds = datetime.datetime(os.time() - math.floor(seconds)); end + + local since = history_tag and history_tag.attr.since; + if since and not since:match("^%d%d%d%d%-%d%d%-%d%dT%d%d:%d%d:%d%dZ$") then since = nil; end -- FIXME timezone support + if seconds and (not since or since < seconds) then since = seconds; end + + local n = 0; + local charcount = 0; + local stanzacount = 0; + + 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 + 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); end end @@ -319,7 +357,7 @@ function room_mt:handle_to_occupant(origin, stanza) -- PM, vCards, etc :tag("item", {affiliation=affiliation or "none", role=role or "none"}):up() :tag("status", {code='110'})); end - self:send_history(from); + self:send_history(from, stanza); else -- banned local reply = st.error_reply(stanza, "auth", "forbidden"):up(); reply.tags[1].attr.code = "403"; |