Mercurial > prosody-modules

annotate mod_muc_ban_ip/mod_muc_ban_ip.lua @ 5235:d0d251abf595

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID
author Matthew Wild <mwild1@gmail.com>
date Sat, 11 Mar 2023 18:41:49 +0000
parents 47d9f704d14b
children
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
5015
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
3 local jid_bare, jid_host = require "util.jid".bare, require "util.jid".host;
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
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
5015
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
7 local trusted_services = module:get_option_inherited_set("muc_ban_ip_trusted_services", {});
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
8 local trust_local_restricted_services = module:get_option_boolean("muc_ban_ip_trust_local_restricted_services", true);
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
9
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
10 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
11 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
12
5015
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
13 local function is_local_restricted_service(host)
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
14 local muc_service = prosody.hosts[host] and prosody.hosts[host].modules.muc;
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
15 if muc_service and module:context(host):get_option("restrict_room_creation") ~= nil then -- COMPAT: May need updating post-0.12
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
16 return true;
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
17 end
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
18 return false;
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
19 end
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
20
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
21 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
22 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
23 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
24 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
25 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
26 end
5015
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
27 local from_host = jid_host(from);
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
28 if trusted_services:contains(from_host) or (trust_local_restricted_services and is_local_restricted_service(from_host)) then
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
29 from = from_host; -- Ban from entire host
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
30 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
31 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
32 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
33 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
34 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
35 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
36 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
37 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
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
1651
933403ee07ec mod_muc_ban_ip: Cleanup [luacheck]
Kim Alvefur <zash@zash.se>
parents: 1647
diff changeset
40 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
41 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
42 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
43 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
44 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
45 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
46 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
47 -- 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
48 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
49 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
50 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
51 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
52 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
53 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
54 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
55 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
56 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
57 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
58 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
59
1651
933403ee07ec mod_muc_ban_ip: Cleanup [luacheck]
Kim Alvefur <zash@zash.se>
parents: 1647
diff changeset
60 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
61 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
62 local ip = origin.ip;
5015
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
63 local to, to_host = jid_bare(stanza.attr.to), jid_host(stanza.attr.to);
47d9f704d14b mod_muc_ban_ip: Support for service-wide IP bans from trusted services
Matthew Wild <mwild1@gmail.com>
parents: 4323
diff changeset
64 if ip_bans[ip] and (ip_bans[ip][to] or ip_bans[ip][to_host]) then
3995
4c9805f29f2d mod_muc_ban_ip: log fallback to module
Georg Lukas <georg@op-co.de>
parents: 3403
diff changeset
65 (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
66 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
67 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
68 :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
69 :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
70 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
71 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
72 end
3995
4c9805f29f2d mod_muc_ban_ip: log fallback to module
Georg Lukas <georg@op-co.de>
parents: 3403
diff changeset
73 (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
74 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
75
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
76 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
77 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
78 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
79 end