local t_insert = table.insert;
local mod_smacks = module:depends"smacks"
-- ignore offline messages and don't return any error (the message will be already in MAM at this point)
-- this is *only* triggered if mod_offline is *not* loaded and completely ignored otherwise
module:hook("message/offline/handle", function(event)
event.origin.log("debug", "Ignoring offline message (mod_offline seems to be *not* loaded)...");
return true;
end, -100);
local function discard_unacked_messages(session)
local queue = session.outgoing_stanza_queue;
local replacement_queue = {};
session.outgoing_stanza_queue = replacement_queue;
for _, stanza in ipairs(queue) do
if stanza.name == "message" and stanza.attr.xmlns == nil and
( stanza.attr.type == "chat" or ( stanza.attr.type or "normal" ) == "normal" ) then
-- do nothing here for normal messages and don't send out "message delivery errors",
-- because messages are already in MAM at this point (no need to frighten users)
else
t_insert(replacement_queue, stanza);
end
end
end
local handle_unacked_stanzas = mod_smacks.handle_unacked_stanzas;
mod_smacks.handle_unacked_stanzas = function (session)
-- Only deal with authenticated (c2s) sessions
if session.username then
discard_unacked_messages(session)
end
return handle_unacked_stanzas(session);
end
function module.unload()
mod_smacks.handle_unacked_stanzas = handle_unacked_stanzas;
end