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mod_muc_access_control/mod_muc_access_control.lua @ 2381:a4614a329bdd
mod_pubsub_feeds: Get entry from list of entries (thanks Link Mauve)
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 19 Nov 2016 19:17:49 +0100 |
parent | 1954:050cd7b6fa96 |
child | 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(jid); if not prepped_jid then module:log("error", "Invalid JID: %s", unprepped_jid); else table.insert(prepped_list, jid.pep(jid)); end end 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);