Software /
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prosody-modules
Changeset
1612:247e6e43843e
Adding new mod_muc_restrict_rooms module
author | Nicolás Kovac <nkneumann(at)gmail.com> |
---|---|
date | Fri, 20 Feb 2015 18:00:56 +0000 (2015-02-20) |
parents | 1611:770236ea9678 |
children | 1613:ca04f75958f7 |
files | mod_muc_restrict_rooms/mod_muc_restrict_rooms.lua |
diffstat | 1 files changed, 60 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mod_muc_restrict_rooms/mod_muc_restrict_rooms.lua Fri Feb 20 18:00:56 2015 +0000 @@ -0,0 +1,60 @@ +local st = require "util.stanza"; +local nodeprep = require "util.encodings".stringprep.nodeprep; + +local rooms = module:shared "muc/rooms"; +if not rooms then + module:log("error", "This module only works on MUC components!"); + return; +end + +local admins = module:get_option_set("admins", {}); +local restrict_patterns = module:get_option("muc_restrict_matching", {}); +local restrict_excepts = module:get_option_set("muc_restrict_exceptions", {}); +local restrict_allow_admins = module:get_option_set("muc_restrict_allow_admins", false); + +local function is_restricted(room, who) + -- If admins can join prohibited rooms, we allow them to + if (restrict_allow_admins == true) and (admins:contains(who)) then + module:log("debug", "Admins are allowed to enter restricted rooms (%s on %s)", who, room) + return false; + end + + -- Don't evaluate exceptions + if restrict_excepts:contains(room:lower()) then + module:log("debug", "Room %s is amongst restriction exceptions", room:lower()) + return false; + end + + -- Evaluate regexps of restricted patterns + for pattern,reason in pairs(restrict_patterns) do + if room:match(pattern) then + module:log("debug", "Room %s is restricted by pattern %s, user %s is not allowed to join (%s)", room, pattern, who, reason) + return reason; + end + end + + return nil +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 = stanza.attr.from:match("([^@]+)@[^@]+") + if not room then return; end + + -- Get who has tried to join it + local who = stanza.attr.to:match("([^\/]+)\/[^\/]+") + + -- 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);