prosody-modules
0649883de4d3
mod_password_policy/mod_password_policy.lua

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mod_password_policy/mod_password_policy.lua @ 841:0649883de4d3

mod_password_policy: Initial commit.
author Waqas Hussain <waqas20@gmail.com>
date Fri, 05 Oct 2012 05:49:22 +0500
child 845:1c14edca74a4
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840:f568661c9d39 841:0649883de4d3
1 -- Password policy enforcement for Prosody
2 --
3 -- Copyright (C) 2012 Waqas Hussain
4 --
5 --
6 -- Configuration:
7 -- password_policy = {
8 -- length = 8;
9 -- }
10
11
12 local options = module:get_option("password_policy");
13
14 options = options or {};
15 options.length = options.length or 8;
16
17 local st = require "util.stanza";
18
19 function check_password(password)
20 return #password <= options.length;
21 end
22
23 function handler(event)
24 local origin, stanza = event.origin, event.stanza;
25
26 if stanza.attr.type == "set" then
27 local query = stanza.tags[1];
28
29 local passwords = {};
30
31 local dataform = query:get_child("x", "jabber:x:data");
32 if dataform then
33 for _,tag in ipairs(dataform.tags) do
34 if tag.attr.var == "password" then
35 table.insert(passwords, tag:get_child_text("value"));
36 end
37 end
38 end
39
40 table.insert(passwords, query:get_child_text("password"));
41
42 for _,password in ipairs(passwords) do
43 if password and not check_password(password) then
44 origin.send(st.error_reply(stanza, "cancel", "not-acceptable", "Please use a longer password."));
45 return true;
46 end
47 end
48 end
49 end
50
51 module:hook("iq/self/jabber:iq:register:query", handler, 10);
52 module:hook("iq/host/jabber:iq:register:query", handler, 10);
53 module:hook("stanza/iq/jabber:iq:register:query", handler, 10);