Mercurial > prosody-modules

annotate mod_muc_ban_ip/mod_muc_ban_ip.lua @ 4568:88089c61121d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_muc_bot: Add a README
author Kim Alvefur <zash@zash.se>
date Mon, 24 May 2021 16:35:47 +0200
parents a7a06c8cea37
children 47d9f704d14b
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>
parents:
diff changeset
1 module:set_global();
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>
parents:
diff changeset
2
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>
parents:
diff changeset
3 local jid_bare = require "util.jid".bare;
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>
parents:
diff changeset
4 local st = require "util.stanza";
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>
parents:
diff changeset
5 local xmlns_muc_user = "http://jabber.org/protocol/muc#user";
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>
parents:
diff changeset
6
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>
parents:
diff changeset
7 local ip_bans = module:shared("bans");
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>
parents:
diff changeset
8 local full_sessions = prosody.full_sessions;
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>
parents:
diff changeset
9
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>
parents:
diff changeset
10 local function ban_ip(session, from)
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>
parents:
diff changeset
11 local ip = session.ip;
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>
parents:
diff changeset
12 if not ip then
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>
parents:
diff changeset
13 module:log("warn", "Failed to ban IP (IP unknown) for %s", session.full_jid);
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>
parents:
diff changeset
14 return;
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>
parents:
diff changeset
15 end
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>
parents:
diff changeset
16 local banned_from = ip_bans[ip];
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>
parents:
diff changeset
17 if not banned_from then
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>
parents:
diff changeset
18 banned_from = {};
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>
parents:
diff changeset
19 ip_bans[ip] = banned_from;
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>
parents:
diff changeset
20 end
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>
parents:
diff changeset
21 banned_from[from] = true;
3403
823027110e29 mod_muc_ban_ip: Improve logging to use session, and log when a ban is enforced
Matthew Wild <mwild1@gmail.com>
parents: 1651
diff changeset
22 module:log("debug", "Added ban for IP address %s from %s", ip, from);
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>
parents:
diff changeset
23 end
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>
parents:
diff changeset
24
1651
933403ee07ec mod_muc_ban_ip: Cleanup [luacheck]
Kim Alvefur <zash@zash.se>
parents: 1647
diff changeset
25 local function check_for_incoming_ban(event)
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>
parents:
diff changeset
26 local stanza = event.stanza;
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>
parents:
diff changeset
27 local to_session = full_sessions[stanza.attr.to];
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>
parents:
diff changeset
28 if to_session then
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>
parents:
diff changeset
29 local directed = to_session.directed;
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>
parents:
diff changeset
30 local from = stanza.attr.from;
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>
parents:
diff changeset
31 if directed and directed[from] and stanza.attr.type == "unavailable" then
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>
parents:
diff changeset
32 -- This is a stanza from somewhere we sent directed presence to (may be a MUC)
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>
parents:
diff changeset
33 local x = stanza:get_child("x", xmlns_muc_user);
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>
parents:
diff changeset
34 if x then
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>
parents:
diff changeset
35 for status in x:childtags("status") do
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>
parents:
diff changeset
36 if status.attr.code == '301' then
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>
parents:
diff changeset
37 ban_ip(to_session, jid_bare(from));
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>
parents:
diff changeset
38 end
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>
parents:
diff changeset
39 end
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>
parents:
diff changeset
40 end
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>
parents:
diff changeset
41 end
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>
parents:
diff changeset
42 end
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>
parents:
diff changeset
43 end
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>
parents:
diff changeset
44
1651
933403ee07ec mod_muc_ban_ip: Cleanup [luacheck]
Kim Alvefur <zash@zash.se>
parents: 1647
diff changeset
45 local function check_for_ban(event)
3403
823027110e29 mod_muc_ban_ip: Improve logging to use session, and log when a ban is enforced
Matthew Wild <mwild1@gmail.com>
parents: 1651
diff changeset
46 local origin, stanza = event.origin, event.stanza;
823027110e29 mod_muc_ban_ip: Improve logging to use session, and log when a ban is enforced
Matthew Wild <mwild1@gmail.com>
parents: 1651
diff changeset
47 local ip = origin.ip;
823027110e29 mod_muc_ban_ip: Improve logging to use session, and log when a ban is enforced
Matthew Wild <mwild1@gmail.com>
parents: 1651
diff changeset
48 local to = jid_bare(stanza.attr.to);
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>
parents:
diff changeset
49 if ip_bans[ip] and ip_bans[ip][to] then
3995
4c9805f29f2d mod_muc_ban_ip: log fallback to module
Georg Lukas <georg@op-co.de>
parents: 3403
diff changeset
50 (origin.log or module._log)("debug", "IP banned: %s is banned from %s", ip, to)
4323
a7a06c8cea37 mod_muc_ban_ip: Lua is not C, fix typo
Georg Lukas <georg@op-co.de>
parents: 4321
diff changeset
51 if stanza.attr.type ~= "error" then
4321
71498f484c22 mod_muc_ban_ip: do not error() on banned user sending error to MUC
Georg Lukas <georg@op-co.de>
parents: 3995
diff changeset
52 origin.send(st.error_reply(stanza, "auth", "forbidden")
71498f484c22 mod_muc_ban_ip: do not error() on banned user sending error to MUC
Georg Lukas <georg@op-co.de>
parents: 3995
diff changeset
53 :tag("x", { xmlns = xmlns_muc_user })
71498f484c22 mod_muc_ban_ip: do not error() on banned user sending error to MUC
Georg Lukas <georg@op-co.de>
parents: 3995
diff changeset
54 :tag("status", { code = '301' }));
71498f484c22 mod_muc_ban_ip: do not error() on banned user sending error to MUC
Georg Lukas <georg@op-co.de>
parents: 3995
diff changeset
55 end
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>
parents:
diff changeset
56 return true;
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>
parents:
diff changeset
57 end
3995
4c9805f29f2d mod_muc_ban_ip: log fallback to module
Georg Lukas <georg@op-co.de>
parents: 3403
diff changeset
58 (origin.log or module._log)("debug", "IP not banned: %s from %s", ip, to)
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>
parents:
diff changeset
59 end
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>
parents:
diff changeset
60
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>
parents:
diff changeset
61 function module.add_host(module)
1647
8860405e2af6 mod_muc_ban_ip: Increase priority of hooks, fixes if eg mod_presence gets called first
Kim Alvefur <zash@zash.se>
parents: 1005
diff changeset
62 module:hook("presence/full", check_for_incoming_ban, 100);
8860405e2af6 mod_muc_ban_ip: Increase priority of hooks, fixes if eg mod_presence gets called first
Kim Alvefur <zash@zash.se>
parents: 1005
diff changeset
63 module:hook("pre-presence/full", check_for_ban, 100);
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>
parents:
diff changeset
64 end