diff options
| -rw-r--r-- | plugins/mod_register.lua | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/plugins/mod_register.lua b/plugins/mod_register.lua index 377bf153..250be65d 100644 --- a/plugins/mod_register.lua +++ b/plugins/mod_register.lua @@ -23,6 +23,7 @@ local st = require "util.stanza"; local usermanager_user_exists = require "core.usermanager".user_exists; local usermanager_create_user = require "core.usermanager".create_user; local datamanager_store = require "util.datamanager".store; +local os_time = os.time; module:add_feature("jabber:iq:register"); @@ -93,6 +94,14 @@ module:add_iq_handler("c2s", "jabber:iq:register", function (session, stanza) end; end); +local recent_ips = {}; +local min_seconds_between_registrations = config.get(module.host, "core", "min_seconds_between_registrations"); +local whitelisted_ips = config.get(module.host, "core", "registration_whitelist") or { "127.0.0.1" }; +local blacklisted_ips = config.get(module.host, "core", "registration_blacklist") or {}; + +for _, ip in ipairs(whitelisted_ips) do whitelisted_ips[ip] = true; end +for _, ip in ipairs(blacklisted_ips) do blacklisted_ips[ip] = true; end + module:add_iq_handler("c2s_unauthed", "jabber:iq:register", function (session, stanza) if config.get(module.host, "core", "allow_registration") == false then session.send(st.error_reply(stanza, "cancel", "service-unavailable")); @@ -112,6 +121,26 @@ module:add_iq_handler("c2s_unauthed", "jabber:iq:register", function (session, s local username = query:child_with_name("username"); local password = query:child_with_name("password"); if username and password then + -- Check that the user is not blacklisted or registering too often + if blacklisted_ips[session.ip] then + session.send(st.error_reply(stanza, "cancel", "not-acceptable")); + return; + elseif min_seconds_between_registrations and not whitelisted_ips[session.ip] then + if not recent_ips[session.ip] then + recent_ips[session.ip] = { time = os_time(), count = 1 }; + else + + local ip = recent_ips[session.ip]; + ip.count = ip.count + 1; + + if os_time() - ip.time < min_seconds_between_registrations then + ip.time = os_time(); + session.send(st.error_reply(stanza, "cancel", "not-acceptable")); + return; + end + ip.time = os_time(); + end + end -- FIXME shouldn't use table.concat username = table.concat(username); password = table.concat(password); |