Mercurial > prosody-modules
view mod_muc_ban_ip/mod_muc_ban_ip.lua @ 3866:c0df50ce96f0
mod_rest: Handle internal http request errors early and then return
Skips over attempted parsing of the payload which usually failed since
the body is an error string like "connection refused", so this produced
useless errors.
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 25 Jan 2020 20:22:12 +0100 |
parents | 823027110e29 |
children | 4c9805f29f2d |
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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", "Added ban for 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 origin, stanza = event.origin, event.stanza; local ip = origin.ip; local to = jid_bare(stanza.attr.to); if ip_bans[ip] and ip_bans[ip][to] then origin.log("debug", "IP banned: %s is banned from %s", ip, to) origin.send(st.error_reply(stanza, "auth", "forbidden") :tag("x", { xmlns = xmlns_muc_user }) :tag("status", { code = '301' })); return true; end origin.log("debug", "IP 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