local st = require"util.stanza"; local jid_split = require "util.jid".split; local jid_bare = require "util.jid".bare; local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed; local throttle = require "util.throttle"; local sessions = prosody.full_sessions; local max = module:get_option_number("unsolicited_messages_per_minute", 10); local multiplier = module:get_option_number("throttle_unsolicited_burst", 1); function check_subscribed(event) local stanza, origin = event.stanza, event.origin; local log = origin.log or module._log; log("debug", "check_subscribed(%s)", stanza:top_tag()); if stanza.attr.type == "error" then return end -- Check if it's a message to a joined room local to_bare = jid_bare(stanza.attr.to); local rooms = origin.rooms_joined; if rooms and rooms[to_bare] then log("debug", "Message to joined room, no limit"); return end -- Retrieve or create throttle object local lim = origin.throttle_unsolicited; if not lim then log("debug", "New throttle"); lim = throttle.create(max * multiplier, 60 * multiplier); origin.throttle_unsolicited = lim; end local to_user, to_host = jid_split(stanza.attr.to); local from_jid = jid_bare(stanza.attr.from); if to_user and not is_contact_subscribed(to_user, to_host, from_jid) then log("debug", "%s is not subscribed to %s@%s", from_jid, to_user, to_host); if not lim:poll(1) then log("warn", "Sent too many messages to non-contacts, bouncing message"); event.origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); return true; end end end module:hook("pre-message/bare", check_subscribed, 200); module:hook("pre-message/full", check_subscribed, 200); module:depends("track_muc_joins");