prosody-modules
4aedce4fb95d
mod_limit_auth/mod_limit_auth.lua

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

Software / code / prosody-modules

Annotate

mod_limit_auth/mod_limit_auth.lua @ 5391:4aedce4fb95d

mod_http_oauth2: Fix accidental uppercase in invocation of hash function Thanks auto-complete!
author Kim Alvefur <zash@zash.se>
date Sun, 30 Apr 2023 16:41:30 +0200
parent 1941:2a5a44d5b935
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1583
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 -- mod_limit_auth
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
2
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
3 local st = require"util.stanza";
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
4 local new_throttle = require "util.throttle".create;
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
5
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6 local period = math.max(module:get_option_number(module.name.."_period", 30), 0);
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
7 local max = math.max(module:get_option_number(module.name.."_max", 5), 1);
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
8
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
9 local tarpit_delay = module:get_option_number(module.name.."_tarpit_delay", nil);
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
10 if tarpit_delay then
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
11 local waiter = require "util.async".waiter;
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
12 local delay = tarpit_delay;
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
13 function tarpit_delay()
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
14 local wait, done = waiter();
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
15 module:add_timer(delay, done);
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
16 wait();
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
17 end
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18 else
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
19 function tarpit_delay() end
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
20 end
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
21
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
22 local throttles = module:shared"throttles";
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
23
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
24 local reply = st.stanza("failure", { xmlns = "urn:ietf:params:xml:ns:xmpp-sasl" }):tag("temporary-auth-failure");
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
25
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
26 local function get_throttle(ip)
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
27 local throttle = throttles[ip];
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
28 if not throttle then
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
29 throttle = new_throttle(max, period);
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
30 throttles[ip] = throttle;
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
31 end
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
32 return throttle;
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
33 end
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
34
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
35 module:hook("stanza/urn:ietf:params:xml:ns:xmpp-sasl:auth", function (event)
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
36 local origin = event.origin;
1941
2a5a44d5b935 mod_limit_auth: Only apply limit to normal c2s sessions (thanks cuc)
Kim Alvefur <zash@zash.se>
parents: 1854
diff changeset
37 if origin.type ~= "c2s_unauthed" then return end
1583
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
38 if not get_throttle(origin.ip):peek(1) then
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
39 origin.log("warn", "Too many authentication attepmts for ip %s", origin.ip);
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
40 tarpit_delay();
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
41 origin.send(reply);
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
42 return true;
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
43 end
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
44 end, 10);
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
45
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
46 module:hook("authentication-failure", function (event)
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
47 get_throttle(event.session.ip):poll(1);
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
48 end);
c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
Kim Alvefur <zash@zash.se>
parents:
diff changeset
49
1854
450ada5bb1b5 mod_limit_auth: Get rid of old inactive throttle objects
Kim Alvefur <zash@zash.se>
parents: 1583
diff changeset
50 module:add_timer(14400, function (now)
450ada5bb1b5 mod_limit_auth: Get rid of old inactive throttle objects
Kim Alvefur <zash@zash.se>
parents: 1583
diff changeset
51 local old = now - 86400;
450ada5bb1b5 mod_limit_auth: Get rid of old inactive throttle objects
Kim Alvefur <zash@zash.se>
parents: 1583
diff changeset
52 for ip, throttle in pairs(throttles) do
450ada5bb1b5 mod_limit_auth: Get rid of old inactive throttle objects
Kim Alvefur <zash@zash.se>
parents: 1583
diff changeset
53 if throttle.t < old then
450ada5bb1b5 mod_limit_auth: Get rid of old inactive throttle objects
Kim Alvefur <zash@zash.se>
parents: 1583
diff changeset
54 throttles[ip] = nil;
450ada5bb1b5 mod_limit_auth: Get rid of old inactive throttle objects
Kim Alvefur <zash@zash.se>
parents: 1583
diff changeset
55 end
450ada5bb1b5 mod_limit_auth: Get rid of old inactive throttle objects
Kim Alvefur <zash@zash.se>
parents: 1583
diff changeset
56 end
450ada5bb1b5 mod_limit_auth: Get rid of old inactive throttle objects
Kim Alvefur <zash@zash.se>
parents: 1583
diff changeset
57 end);
450ada5bb1b5 mod_limit_auth: Get rid of old inactive throttle objects
Kim Alvefur <zash@zash.se>
parents: 1583
diff changeset
58