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mod_throttle_unsolicited/mod_throttle_unsolicited.lua @ 5366:db4c66a1d24b
mod_http_oauth2: Fill in some client metadata defaults
Explicit > Implicit
Maybe we should actually use these for something as well? :)
It's is somewhat an open question of how strictly we should enforce
things in the client metadata given that it is somewhat extensible.
Especially some of these enum fields which have corresponding IANA
registries.
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 25 Apr 2023 18:09:08 +0200 |
parent | 3541:4d8a68557941 |
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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 gettime = require "socket".gettime; local max = module:get_option_number("unsolicited_messages_per_minute", 10); local s2s_max = module:get_option_number("unsolicited_s2s_messages_per_minute"); 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; if stanza.attr.type == "error" then return end local to_orig = stanza.attr.to; if to_orig == nil or to_orig == origin.full_jid then return end -- to self local to_bare = jid_bare(to_orig); local from_jid = jid_bare(stanza.attr.from); if to_bare == from_jid then return end -- to own resource -- Check if it's a message to a joined room local rooms = origin.rooms_joined; if rooms and rooms[to_bare] then return end -- Retrieve or create throttle object local lim = origin.throttle_unsolicited; if not lim then lim = throttle.create(max * multiplier, 60 * multiplier); origin.throttle_unsolicited = lim; end local to_user, to_host = jid_split(to_orig); if to_user and not is_contact_subscribed(to_user, to_host, from_jid) then log("debug", "[unsolicited] %s is not subscribed to %s@%s", from_jid, to_user, to_host); if not lim:poll(1) then log("warn", "[unsolicited] Sent too many messages to non-contacts, bouncing message"); origin.firewall_mark_unsolicited = gettime(); 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); local full_sessions = prosody.full_sessions; -- Rooms and throttle creation will differ for s2s function check_subscribed_s2s(event) local stanza, origin = event.stanza, event.origin; local log = origin.log or module._log; if origin.type ~= "s2sin" then return end local to_orig = stanza.attr.to; local from_orig = stanza.attr.from; local from_bare = jid_bare(from_orig); local target = full_sessions[to_orig]; if target then local rooms = target.rooms_joined; if rooms and rooms[from_bare] then log("debug", "Message to joined room, no limit"); return end end -- Retrieve or create throttle object local lim = origin.throttle_unsolicited; if not lim then log("debug", "New s2s throttle"); lim = throttle.create(s2s_max * multiplier, 60 * multiplier); origin.throttle_unsolicited = lim; end return check_subscribed(event); end if s2s_max then module:hook("message/bare", check_subscribed_s2s, 200); module:hook("message/full", check_subscribed_s2s, 200); end module:depends("track_muc_joins");