Mercurial > prosody-modules

annotate mod_auth_pam/mod_auth_pam.lua @ 6213:49fad071e644

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mod_net_proxy: Use safer util.format for generating description string (thanks tom) It appears that server_event may emit port numbers (src_port() in this case) as strings, rather than integers. This causes string.format() to throw an error. Prosody's util.format is a more forgiving formatter and won't throw an error. The server_event behaviour may be best fixed for the sake of consistency, though.
author Matthew Wild <mwild1@gmail.com>
date Fri, 09 May 2025 10:00:15 +0100
parents 57bb2497fadc
children
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b8762c9fb270 mod_auth_pam: Initial commit of simple PAM authentication module
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1 -- PAM authentication for Prosody
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2 -- Copyright (C) 2013 Kim Alvefur
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3 --
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4 -- Requires https://github.com/devurandom/lua-pam
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5 -- and LuaPosix
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6
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7 local posix = require "posix";
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8 local pam = require "pam";
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9 local new_sasl = require "util.sasl".new;
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10
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11 function user_exists(username)
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12 return not not posix.getpasswd(username);
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13 end
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14
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15 function test_password(username, password)
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16 local h, err = pam.start("xmpp", username, {
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17 function (t)
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18 if #t == 1 and t[1][1] == pam.PROMPT_ECHO_OFF then
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19 return { { password, 0} };
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20 end
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21 end
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22 });
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23 if h and h:authenticate() and h:endx(pam.SUCCESS) then
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24 return user_exists(username), true;
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25 end
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26 return nil, true;
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27 end
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28
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29 function get_sasl_handler()
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30 return new_sasl(module.host, {
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31 plain_test = function(sasl, ...)
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32 return test_password(...)
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33 end
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34 });
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35 end
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36
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37 module:provides"auth";