prosody-modules
2b62a3b76d76
mod_muc_limits/mod_muc_limits.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody-modules

Annotate

mod_muc_limits/mod_muc_limits.lua @ 1166:2b62a3b76d76

mod_s2s_auth_fingerprint: Don't halt event propagation in cert pinning mode
author Kim Alvefur <zash@zash.se>
date Fri, 16 Aug 2013 00:25:37 +0200
parent 1058:1255de347dd4
child 1205:7d2d440e2fa5
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1057
0b41122b19f9 mod_muc_limits: Abort loading on non-MUC hosts (thanks Ge0rG)
Matthew Wild <mwild1@gmail.com>
parents: 1042
diff changeset
1
0b41122b19f9 mod_muc_limits: Abort loading on non-MUC hosts (thanks Ge0rG)
Matthew Wild <mwild1@gmail.com>
parents: 1042
diff changeset
2 if not hosts[module.host].modules.muc then
0b41122b19f9 mod_muc_limits: Abort loading on non-MUC hosts (thanks Ge0rG)
Matthew Wild <mwild1@gmail.com>
parents: 1042
diff changeset
3 module:log("error", "This module only works on MUC components!");
0b41122b19f9 mod_muc_limits: Abort loading on non-MUC hosts (thanks Ge0rG)
Matthew Wild <mwild1@gmail.com>
parents: 1042
diff changeset
4 return;
0b41122b19f9 mod_muc_limits: Abort loading on non-MUC hosts (thanks Ge0rG)
Matthew Wild <mwild1@gmail.com>
parents: 1042
diff changeset
5 end
554
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6
1042
5fd0860c86cd mod_muc_limits: Allow stanzas from affiliated users even if they are not in the room
Matthew Wild <mwild1@gmail.com>
parents: 1040
diff changeset
7 local jid_split, jid_bare = require "util.jid".split, require "util.jid".bare;
554
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8 local st = require "util.stanza";
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9 local new_throttle = require "util.throttle".create;
1038
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
10 local t_insert, t_concat = table.insert, table.concat;
1042
5fd0860c86cd mod_muc_limits: Allow stanzas from affiliated users even if they are not in the room
Matthew Wild <mwild1@gmail.com>
parents: 1040
diff changeset
11 local hosts = prosody.hosts;
554
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12
557
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
13 local xmlns_muc = "http://jabber.org/protocol/muc";
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
14
554
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 local period = math.max(module:get_option_number("muc_event_rate", 0.5), 0);
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 local burst = math.max(module:get_option_number("muc_burst_factor", 6), 1);
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17
1036
a44e755f7579 mod_muc_limits: Add muc_max_nick_length option, defaulting to 23 (bytes)
Matthew Wild <mwild1@gmail.com>
parents: 1035
diff changeset
18 local max_nick_length = module:get_option_number("muc_max_nick_length", 23); -- Default chosen through scientific methods
1038
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
19 local dropped_count = 0;
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
20 local dropped_jids;
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
21
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
22 local function log_dropped()
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
23 module:log("warn", "Dropped %d stanzas from %d JIDs: %s", dropped_count, #dropped_jids, t_concat(dropped_jids, ", "));
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
24 dropped_count = 0;
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
25 dropped_jids = nil;
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
26 end
1036
a44e755f7579 mod_muc_limits: Add muc_max_nick_length option, defaulting to 23 (bytes)
Matthew Wild <mwild1@gmail.com>
parents: 1035
diff changeset
27
554
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28 local function handle_stanza(event)
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29 local origin, stanza = event.origin, event.stanza;
555
2356ad05fdb6 mod_muc_limits: Don't limit room leaving
Matthew Wild <mwild1@gmail.com>
parents: 554
diff changeset
30 if stanza.name == "presence" and stanza.attr.type == "unavailable" then -- Don't limit room leaving
2356ad05fdb6 mod_muc_limits: Don't limit room leaving
Matthew Wild <mwild1@gmail.com>
parents: 554
diff changeset
31 return;
2356ad05fdb6 mod_muc_limits: Don't limit room leaving
Matthew Wild <mwild1@gmail.com>
parents: 554
diff changeset
32 end
1042
5fd0860c86cd mod_muc_limits: Allow stanzas from affiliated users even if they are not in the room
Matthew Wild <mwild1@gmail.com>
parents: 1040
diff changeset
33 local dest_room, dest_host, dest_nick = jid_split(stanza.attr.to);
554
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
34 local room = hosts[module.host].modules.muc.rooms[dest_room.."@"..dest_host];
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
35 if not room then return; end
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36 local from_jid = stanza.attr.from;
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37 local occupant = room._occupants[room._jid_nick[from_jid]];
1042
5fd0860c86cd mod_muc_limits: Allow stanzas from affiliated users even if they are not in the room
Matthew Wild <mwild1@gmail.com>
parents: 1040
diff changeset
38 if (occupant and occupant.affiliation) or (not(occupant) and room._affiliations[jid_bare(from_jid)]) then
554
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39 module:log("debug", "Skipping stanza from affiliated user...");
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40 return;
1058
1255de347dd4 mod_muc_limits: Fix traceback on presence sent to the room's bare JID
Matthew Wild <mwild1@gmail.com>
parents: 1057
diff changeset
41 elseif dest_nick and max_nick_length and stanza.name == "presence" and not room._occupants[stanza.attr.to] and #dest_nick > max_nick_length then
1036
a44e755f7579 mod_muc_limits: Add muc_max_nick_length option, defaulting to 23 (bytes)
Matthew Wild <mwild1@gmail.com>
parents: 1035
diff changeset
42 module:log("debug", "Forbidding long (%d bytes) nick in %s", #dest_nick, dest_room)
a44e755f7579 mod_muc_limits: Add muc_max_nick_length option, defaulting to 23 (bytes)
Matthew Wild <mwild1@gmail.com>
parents: 1035
diff changeset
43 origin.send(st.error_reply(stanza, "modify", "policy-violation", "Your nick name is too long, please use a shorter one")
a44e755f7579 mod_muc_limits: Add muc_max_nick_length option, defaulting to 23 (bytes)
Matthew Wild <mwild1@gmail.com>
parents: 1035
diff changeset
44 :up():tag("x", { xmlns = xmlns_muc }));
a44e755f7579 mod_muc_limits: Add muc_max_nick_length option, defaulting to 23 (bytes)
Matthew Wild <mwild1@gmail.com>
parents: 1035
diff changeset
45 return true;
554
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
46 end
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
47 local throttle = room.throttle;
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
48 if not room.throttle then
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
49 throttle = new_throttle(period*burst, burst);
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
50 room.throttle = throttle;
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 end
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
52 if not throttle:poll(1) then
1038
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
53 module:log("debug", "Dropping stanza for %s@%s from %s, over rate limit", dest_room, dest_host, from_jid);
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
54 if not dropped_jids then
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
55 dropped_jids = { [from_jid] = true, from_jid };
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
56 module:add_timer(5, log_dropped);
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
57 elseif not dropped_jids[from_jid] then
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
58 dropped_jids[from_jid] = true;
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
59 t_insert(dropped_jids, from_jid);
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
60 end
edb06824a5a4 mod_muc_limits: Condense multiple dropped stanzas into a single log message every 5 seconds
Matthew Wild <mwild1@gmail.com>
parents: 1036
diff changeset
61 dropped_count = dropped_count + 1;
557
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
62 local reply = st.error_reply(stanza, "wait", "policy-violation", "The room is currently overactive, please try again later");
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
63 local body = stanza:get_child_text("body");
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
64 if body then
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
65 reply:up():tag("body"):text(body):up();
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
66 end
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
67 local x = stanza:get_child("x", xmlns_muc);
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
68 if x then
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
69 reply:add_child(st.clone(x));
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
70 end
14f39769c9e0 mod_muc_limits: Echo any MUC <x> or <body> in the error reply (required to make Gajim display the error)
Matthew Wild <mwild1@gmail.com>
parents: 556
diff changeset
71 origin.send(reply);
554
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
72 return true;
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
73 end
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
74 end
a2b0174b5c48 mod_muc_limits: New module to impose overall rate-limits on a MUC (not on individual users)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
75
556
e50bdbaa7802 mod_muc_limits: Remove throttle object from all rooms on unload (to make sure new settings are applied on reload)
Matthew Wild <mwild1@gmail.com>
parents: 555
diff changeset
76 function module.unload()
e50bdbaa7802 mod_muc_limits: Remove throttle object from all rooms on unload (to make sure new settings are applied on reload)
Matthew Wild <mwild1@gmail.com>
parents: 555
diff changeset
77 for room_jid, room in pairs(hosts[module.host].modules.muc.rooms) do
e50bdbaa7802 mod_muc_limits: Remove throttle object from all rooms on unload (to make sure new settings are applied on reload)
Matthew Wild <mwild1@gmail.com>
parents: 555
diff changeset
78 room.throttle = nil;
e50bdbaa7802 mod_muc_limits: Remove throttle object from all rooms on unload (to make sure new settings are applied on reload)
Matthew Wild <mwild1@gmail.com>
parents: 555
diff changeset
79 end
e50bdbaa7802 mod_muc_limits: Remove throttle object from all rooms on unload (to make sure new settings are applied on reload)
Matthew Wild <mwild1@gmail.com>
parents: 555
diff changeset
80 end
e50bdbaa7802 mod_muc_limits: Remove throttle object from all rooms on unload (to make sure new settings are applied on reload)
Matthew Wild <mwild1@gmail.com>
parents: 555
diff changeset
81
1040
6574303a8169 mod_muc_limits: Increase hook priority
Matthew Wild <mwild1@gmail.com>
parents: 1038
diff changeset
82 module:hook("message/bare", handle_stanza, 501);
6574303a8169 mod_muc_limits: Increase hook priority
Matthew Wild <mwild1@gmail.com>
parents: 1038
diff changeset
83 module:hook("message/full", handle_stanza, 501);
6574303a8169 mod_muc_limits: Increase hook priority
Matthew Wild <mwild1@gmail.com>
parents: 1038
diff changeset
84 module:hook("presence/bare", handle_stanza, 501);
6574303a8169 mod_muc_limits: Increase hook priority
Matthew Wild <mwild1@gmail.com>
parents: 1038
diff changeset
85 module:hook("presence/full", handle_stanza, 501);