prosody-modules
8064b5e346ab
mod_password_policy/mod_password_policy.lua

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mod_password_policy/mod_password_policy.lua @ 1893:8064b5e346ab

mod_pubsub_feeds/README: Update wording to be clearer
author Kim Alvefur <zash@zash.se>
date Sat, 03 Oct 2015 16:53:45 +0200
parent 845:1c14edca74a4
child 3350:cb26d04b391c
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1 -- Password policy enforcement for Prosody
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2 --
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3 -- Copyright (C) 2012 Waqas Hussain
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4 --
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5 --
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6 -- Configuration:
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7 -- password_policy = {
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8 -- length = 8;
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9 -- }
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10
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11
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12 local options = module:get_option("password_policy");
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13
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14 options = options or {};
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15 options.length = options.length or 8;
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16
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17 local st = require "util.stanza";
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18
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19 function check_password(password)
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20 return #password >= options.length;
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21 end
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22
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23 function handler(event)
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24 local origin, stanza = event.origin, event.stanza;
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25
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26 if stanza.attr.type == "set" then
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27 local query = stanza.tags[1];
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28
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29 local passwords = {};
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30
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31 local dataform = query:get_child("x", "jabber:x:data");
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32 if dataform then
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33 for _,tag in ipairs(dataform.tags) do
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34 if tag.attr.var == "password" then
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35 table.insert(passwords, tag:get_child_text("value"));
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36 end
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37 end
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38 end
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39
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40 table.insert(passwords, query:get_child_text("password"));
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41
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42 for _,password in ipairs(passwords) do
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43 if password and not check_password(password) then
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44 origin.send(st.error_reply(stanza, "cancel", "not-acceptable", "Please use a longer password."));
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45 return true;
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46 end
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47 end
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48 end
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49 end
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50
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51 module:hook("iq/self/jabber:iq:register:query", handler, 10);
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52 module:hook("iq/host/jabber:iq:register:query", handler, 10);
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53 module:hook("stanza/iq/jabber:iq:register:query", handler, 10);