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mod_muc_ban_ip/mod_muc_ban_ip.lua @ 2491:5fbca7de2088
mod_smacks: Send out more ack requests where needed
Under some circumstances it was possible that more than "max_unacked_stanzas"
where left in the outgoing stanza queue without forcing an ack.
This could happen, when more stanzas entered the queue while the last ack request
was still unanswered.
Now the test "#queue > max_unacked_stanzas" is done upon receiving
an ack as well as when sending out stanzas, which fixes this bug.
author | tmolitor <thilo@eightysoft.de> |
---|---|
date | Sun, 12 Feb 2017 19:27:50 +0100 |
parent | 1651:933403ee07ec |
child | 3403:823027110e29 |
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module:set_global(); local jid_bare = require "util.jid".bare; local st = require "util.stanza"; local xmlns_muc_user = "http://jabber.org/protocol/muc#user"; local ip_bans = module:shared("bans"); local full_sessions = prosody.full_sessions; local function ban_ip(session, from) local ip = session.ip; if not ip then module:log("warn", "Failed to ban IP (IP unknown) for %s", session.full_jid); return; end local banned_from = ip_bans[ip]; if not banned_from then banned_from = {}; ip_bans[ip] = banned_from; end banned_from[from] = true; module:log("debug", "Banned IP address %s from %s", ip, from); end local function check_for_incoming_ban(event) local stanza = event.stanza; local to_session = full_sessions[stanza.attr.to]; if to_session then local directed = to_session.directed; local from = stanza.attr.from; if directed and directed[from] and stanza.attr.type == "unavailable" then -- This is a stanza from somewhere we sent directed presence to (may be a MUC) local x = stanza:get_child("x", xmlns_muc_user); if x then for status in x:childtags("status") do if status.attr.code == '301' then ban_ip(to_session, jid_bare(from)); end end end end end end local function check_for_ban(event) local ip = event.origin.ip; local to = jid_bare(event.stanza.attr.to); if ip_bans[ip] and ip_bans[ip][to] then event.origin.send(st.error_reply(event.stanza, "auth", "forbidden") :tag("x", { xmlns = xmlns_muc_user }) :tag("status", { code = '301' })); return true; end module:log("debug", "Not banned: %s from %s", ip, to) end function module.add_host(module) module:hook("presence/full", check_for_incoming_ban, 100); module:hook("pre-presence/full", check_for_ban, 100); end