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mod_muc_access_control/mod_muc_access_control.lua @ 5491:7842502c1157
mod_http_debug: Log some extended info about requests
If you point something external at this module, you don't get the
response body back, hence it can be useful to see some details in the
log as well.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Fri, 26 May 2023 15:37:15 +0200 |
parent | 3024:f54c80404ad3 |
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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);