Mercurial > prosody-modules

annotate mod_muc_ban_ip/mod_muc_ban_ip.lua @ 4976:75b6e5df65f9

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various: Improve error reporting if missing file server module on 0.12 If there is some error loading net.http.files then it would be swallowed by the pcall and then it would proceed to trying mod_http_files, which might cause unexpected behavior on 0.12 Ref #1765
author Kim Alvefur <zash@zash.se>
date Mon, 18 Jul 2022 22:47:54 +0200
parents a7a06c8cea37
children 47d9f704d14b
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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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parents: 1647
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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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Georg Lukas <georg@op-co.de>
parents: 3403
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50 (origin.log or module._log)("debug", "IP banned: %s is banned from %s", ip, to)
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a7a06c8cea37 mod_muc_ban_ip: Lua is not C, fix typo
Georg Lukas <georg@op-co.de>
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51 if stanza.attr.type ~= "error" then
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52 origin.send(st.error_reply(stanza, "auth", "forbidden")
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53 :tag("x", { xmlns = xmlns_muc_user })
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54 :tag("status", { code = '301' }));
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55 end
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56 return true;
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57 end
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58 (origin.log or module._log)("debug", "IP not banned: %s from %s", ip, to)
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59 end
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60
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61 function module.add_host(module)
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parents: 1005
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62 module:hook("presence/full", check_for_incoming_ban, 100);
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63 module:hook("pre-presence/full", check_for_ban, 100);
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64 end