Mercurial > prosody-modules
view mod_muc_access_control/mod_muc_access_control.lua @ 4515:2e33eeafe962
mod_muc_markers: Prevent any markers from reaching the archive, even if untracked
Original intention was to leave alone things that this module isn't
handling. However markers in archives are just problematic without
more advanced logic about what is markable and what is not. It also
requires a more advanced query in mod_muc_rai to determine the latest
markable message instead of the latest archived message.
I'd rather keep the "is archivable" and "is markable" definition the
same for simplicity. I don't want to introduce yet another set of rules
for no reason.
No markers in MAM.
author | Matthew Wild <mwild1@gmail.com> |
---|---|
date | Mon, 22 Mar 2021 15:55:02 +0000 |
parents | f54c80404ad3 |
children |
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local st = require "util.stanza"; local jid = require "util.jid"; local nodeprep = require "util.encodings".stringprep.nodeprep; local unprepped_access_lists = module:get_option("muc_access_lists", {}); local access_lists = {}; -- Make sure all input is prepped for unprepped_room_name, unprepped_list in pairs(unprepped_access_lists) do local prepped_room_name = nodeprep(unprepped_room_name); if not prepped_room_name then module:log("error", "Invalid room name: %s", unprepped_room_name); else local prepped_list = {}; for _, unprepped_jid in ipairs(unprepped_list) do local prepped_jid = jid.prep(unprepped_jid); if not prepped_jid then module:log("error", "Invalid JID: %s", unprepped_jid); else prepped_list[prepped_jid] = true; end end access_lists[prepped_room_name] = prepped_list; end end local function is_restricted(room, who) local allowed = access_lists[room]; if allowed == nil or allowed[who] or allowed[select(2, jid.split(who))] then return nil; end return "forbidden"; end module:hook("presence/full", function(event) local stanza = event.stanza; if stanza.name == "presence" and stanza.attr.type == "unavailable" then -- Leaving events get discarded return; end -- Get the room local room = jid.split(stanza.attr.to); if not room then return; end -- Get who has tried to join it local who = jid.bare(stanza.attr.from) -- Checking whether room is restricted local check_restricted = is_restricted(room, who) if check_restricted ~= nil then event.allowed = false; event.stanza.attr.type = 'error'; return event.origin.send(st.error_reply(event.stanza, "cancel", "forbidden", "You're not allowed to enter this room: " .. check_restricted)); end end, 10);