prosody-modules
78f1de5301fc
mod_password_policy/mod_password_policy.lua

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mod_password_policy/mod_password_policy.lua @ 4049:78f1de5301fc

mod_adhoc_dataforms_demo: Fix duplicate field prevention It's supposed to only include each type of form field once per form at most but it didn't note which fields it had added already. No idea what the probability was anyways, probably pretty low.
author Kim Alvefur <zash@zash.se>
date Tue, 23 Jun 2020 19:40:55 +0200
parent 3351:662f2722f745
child 4828:56eba4bca28f
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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 if #password < options.length then
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21 return nil, ("Password is too short (minimum %d characters)"):format(options.length);
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22 end
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23 return true;
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24 end
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25
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26 function get_policy()
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27 return options;
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28 end
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29
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30 function handler(event)
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31 local origin, stanza = event.origin, event.stanza;
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32
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33 if stanza.attr.type == "set" then
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34 local query = stanza.tags[1];
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35
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36 local passwords = {};
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37
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38 local dataform = query:get_child("x", "jabber:x:data");
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39 if dataform then
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40 for _,tag in ipairs(dataform.tags) do
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41 if tag.attr.var == "password" then
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42 table.insert(passwords, tag:get_child_text("value"));
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43 end
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44 end
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45 end
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46
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47 table.insert(passwords, query:get_child_text("password"));
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48
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49 for _,password in ipairs(passwords) do
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50 if password and not check_password(password) then
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51 origin.send(st.error_reply(stanza, "cancel", "not-acceptable", "Please use a longer password."));
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52 return true;
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53 end
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54 end
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55 end
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56 end
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57
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58 module:hook("iq/self/jabber:iq:register:query", handler, 10);
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59 module:hook("iq/host/jabber:iq:register:query", handler, 10);
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60 module:hook("stanza/iq/jabber:iq:register:query", handler, 10);