prosody-modules
502963b86fbc
mod_limit_auth/mod_limit_auth.lua

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mod_limit_auth/mod_limit_auth.lua @ 6297:502963b86fbc

:multble modules: fix tab-> space diff --git a/mod_admin_blocklist/README.md b/mod_admin_blocklist/README.md --- a/mod_admin_blocklist/README.md +++ b/mod_admin_blocklist/README.md @@ -24,9 +24,9 @@ admin_blocklist_roles = { "prosody:opera # Compatibility Prosody-Version Status - -------------- ------ - trunk* Works - 13 Works - 0.12 Works + ------------ ------ + trunk* Works + 13 Works + 0.12 Works *as of 2025-06-13 diff --git a/mod_csi_grace_period/README.md b/mod_csi_grace_period/README.md --- a/mod_csi_grace_period/README.md +++ b/mod_csi_grace_period/README.md @@ -16,9 +16,9 @@ pocket is not the best use of radio time Works with [mod_csi_simple][doc:modules:mod_csi_simple] which is included with Prosody. - ------- ------- - trunk* Works - 13 Works - 0.12 Works + ------- ------- + trunk* Works + 13 Works + 0.12 Works *as of 2025-06-13 diff --git a/mod_http_upload_external/README.md b/mod_http_upload_external/README.md --- a/mod_http_upload_external/README.md +++ b/mod_http_upload_external/README.md @@ -87,10 +87,10 @@ Compatibility ============= Prosody-Version Status - ---------------- -------------------- - trunk Works as of 25-06-13 - 13 Works - 0.12 Works + ---------------- -------------------- + trunk Works as of 25-06-13 + 13 Works + 0.12 Works Implementation ============== diff --git a/mod_muc_moderation/README.md b/mod_muc_moderation/README.md --- a/mod_muc_moderation/README.md +++ b/mod_muc_moderation/README.md @@ -27,11 +27,10 @@ modules_enabled = { # Compatibility - ------- --------------- - trunk Works^[as of 2025-06-13] - 13 Works - 0.12 Works - ------- --------------- + ------- --------------- + trunk Works^[as of 2025-06-13] + 13 Works + 0.12 Works ## XEP version diff --git a/mod_s2s_idle_timeout/README.md b/mod_s2s_idle_timeout/README.md --- a/mod_s2s_idle_timeout/README.md +++ b/mod_s2s_idle_timeout/README.md @@ -25,10 +25,9 @@ Compatibility ============= Prosody Version Status - ----------------- ----------- - trunk[^1] Works - 13 Works - 0.12 Works - ----------------- ----------- + ----------------- ----------- + trunk[^1] Works + 13 Works + 0.12 Works [^1]: as of 2025-06-13 diff --git a/mod_s2s_keepalive/README.md b/mod_s2s_keepalive/README.md --- a/mod_s2s_keepalive/README.md +++ b/mod_s2s_keepalive/README.md @@ -34,10 +34,9 @@ Compatibility ============= Prosody Version Status - ----------------- ----------- - trunk[^1] Works - 13 Works - 0.12 Works - ----------------- ----------- + ----------------- ----------- + trunk[^1] Works + 13 Works + 0.12 Works [^1]: as of 2025-06-13
author Menel <menel@snikket.de>
date Fri, 13 Jun 2025 09:58:51 +0200
parent 1941:2a5a44d5b935
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c1bb2a64aabb mod_limit_auth: Throttle authentication (failed) attempts with optional (0.10+) tarpit
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1 -- mod_limit_auth
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2
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3 local st = require"util.stanza";
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4 local new_throttle = require "util.throttle".create;
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5
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6 local period = math.max(module:get_option_number(module.name.."_period", 30), 0);
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7 local max = math.max(module:get_option_number(module.name.."_max", 5), 1);
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8
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9 local tarpit_delay = module:get_option_number(module.name.."_tarpit_delay", nil);
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10 if tarpit_delay then
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11 local waiter = require "util.async".waiter;
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12 local delay = tarpit_delay;
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13 function tarpit_delay()
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14 local wait, done = waiter();
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15 module:add_timer(delay, done);
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16 wait();
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17 end
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18 else
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19 function tarpit_delay() end
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20 end
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21
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22 local throttles = module:shared"throttles";
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23
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24 local reply = st.stanza("failure", { xmlns = "urn:ietf:params:xml:ns:xmpp-sasl" }):tag("temporary-auth-failure");
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25
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26 local function get_throttle(ip)
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27 local throttle = throttles[ip];
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28 if not throttle then
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29 throttle = new_throttle(max, period);
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30 throttles[ip] = throttle;
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31 end
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32 return throttle;
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33 end
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34
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35 module:hook("stanza/urn:ietf:params:xml:ns:xmpp-sasl:auth", function (event)
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36 local origin = event.origin;
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37 if origin.type ~= "c2s_unauthed" then return end
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38 if not get_throttle(origin.ip):peek(1) then
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39 origin.log("warn", "Too many authentication attepmts for ip %s", origin.ip);
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40 tarpit_delay();
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41 origin.send(reply);
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42 return true;
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43 end
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44 end, 10);
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45
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46 module:hook("authentication-failure", function (event)
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47 get_throttle(event.session.ip):poll(1);
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48 end);
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49
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50 module:add_timer(14400, function (now)
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51 local old = now - 86400;
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52 for ip, throttle in pairs(throttles) do
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53 if throttle.t < old then
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54 throttles[ip] = nil;
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55 end
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56 end
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57 end);
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58