prosody-modules
871d140d61bb
mod_muc_ban_ip/mod_muc_ban_ip.lua

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mod_muc_ban_ip/mod_muc_ban_ip.lua @ 4268:871d140d61bb

mod_adhoc_oauth2_client: Fix including final client_id in result form The client_id is composed of the details needed for retrieving the data, making it redundant to include in the data, albeit somewhat convenient sometimes. Decided to remove it anyways, but forgot to change the result.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Nov 2020 17:00:26 +0100
parent 3995:4c9805f29f2d
child 4321:71498f484c22
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1005
591590de34ef mod_muc_ban_ip: When a user is banned from a MUC, ban their IP from the MUC also (works for remote rooms too)
Matthew Wild <mwild1@gmail.com>
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1 module:set_global();
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2
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3 local jid_bare = require "util.jid".bare;
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4 local st = require "util.stanza";
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5 local xmlns_muc_user = "http://jabber.org/protocol/muc#user";
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6
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7 local ip_bans = module:shared("bans");
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8 local full_sessions = prosody.full_sessions;
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9
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10 local function ban_ip(session, from)
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11 local ip = session.ip;
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12 if not ip then
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13 module:log("warn", "Failed to ban IP (IP unknown) for %s", session.full_jid);
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14 return;
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15 end
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16 local banned_from = ip_bans[ip];
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17 if not banned_from then
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18 banned_from = {};
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19 ip_bans[ip] = banned_from;
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20 end
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21 banned_from[from] = true;
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22 module:log("debug", "Added ban for IP address %s from %s", ip, from);
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23 end
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24
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25 local function check_for_incoming_ban(event)
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26 local stanza = event.stanza;
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27 local to_session = full_sessions[stanza.attr.to];
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28 if to_session then
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29 local directed = to_session.directed;
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30 local from = stanza.attr.from;
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31 if directed and directed[from] and stanza.attr.type == "unavailable" then
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32 -- This is a stanza from somewhere we sent directed presence to (may be a MUC)
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33 local x = stanza:get_child("x", xmlns_muc_user);
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34 if x then
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35 for status in x:childtags("status") do
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36 if status.attr.code == '301' then
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37 ban_ip(to_session, jid_bare(from));
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38 end
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39 end
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40 end
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41 end
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42 end
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43 end
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44
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45 local function check_for_ban(event)
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46 local origin, stanza = event.origin, event.stanza;
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47 local ip = origin.ip;
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48 local to = jid_bare(stanza.attr.to);
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49 if ip_bans[ip] and ip_bans[ip][to] then
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50 (origin.log or module._log)("debug", "IP banned: %s is banned from %s", ip, to)
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51 origin.send(st.error_reply(stanza, "auth", "forbidden")
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52 :tag("x", { xmlns = xmlns_muc_user })
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53 :tag("status", { code = '301' }));
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54 return true;
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55 end
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56 (origin.log or module._log)("debug", "IP not banned: %s from %s", ip, to)
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57 end
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58
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59 function module.add_host(module)
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60 module:hook("presence/full", check_for_incoming_ban, 100);
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61 module:hook("pre-presence/full", check_for_ban, 100);
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62 end