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annotate mod_password_policy/mod_password_policy.lua @ 4432:e83284d4d5c2

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mod_auth_ccert/README: Add setting to ensure Prosdy asks for client certificate This used to be the default for all services, but since it triggers annoying popups in web browsers it was inverted in Prosody and only s2s enables it, so it needs to be explicitly enabled for c2s again. See trunk 115b5e32d960 Thanks debacle
author Kim Alvefur <zash@zash.se>
date Sat, 06 Feb 2021 21:34:25 +0100
parents 662f2722f745
children 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);