prosody-modules
2b10e51d85a6
mod_password_policy/mod_password_policy.lua

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mod_password_policy/mod_password_policy.lua @ 3965:2b10e51d85a6

mod_muc_limits: Add config option to limit to join stanzas only This is a bit more limited in pre-0.11 MUC modules, because it just detects stanzas sent to full JIDs (which would include all presence and nick changes). This option is useful for setups where users are typically unaffiliated, but trusted (e.g. if access to the room is gated through some other means such as password/token auth).
author Matthew Wild <mwild1@gmail.com>
date Fri, 03 Apr 2020 12:26:56 +0100
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);