prosody-modules
b3bcd1913c85
mod_auth_ldap/mod_auth_ldap.lua

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mod_auth_ldap/mod_auth_ldap.lua @ 310:b3bcd1913c85

mod_auth_dovecot: Switch to using upvalue 'conn' instead of provider.c throughout (thanks Adrien Clerc)
author Matthew Wild <mwild1@gmail.com>
date Sat, 08 Jan 2011 16:54:33 +0000
parent 305:4c3abf1a9b5a
child 342:8e9e5c7d97ff
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1
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2 local new_sasl = require "util.sasl".new;
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3 local nodeprep = require "util.encodings".stringprep.nodeprep;
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4 local log = require "util.logger".init("auth_ldap");
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5
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6 local ldap_server = module:get_option("ldap_server") or "localhost";
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7 local ldap_rootdn = module:get_option("ldap_rootdn") or "";
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8 local ldap_password = module:get_option("ldap_password") or "";
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9 local ldap_tls = module:get_option("ldap_tls");
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10 local ldap_base = assert(module:get_option("ldap_base"), "ldap_base is a required option for ldap");
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11
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12 local lualdap = require "lualdap";
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13 local ld = assert(lualdap.open_simple(ldap_server, ldap_rootdn, ldap_password, ldap_tls));
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14 module.unload = function() ld:close(); end
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15
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16 function do_query(query)
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17 for dn, attribs in ld:search(query) do
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18 return true; -- found a result
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19 end
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20 end
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22 local provider = { name = "ldap" };
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23
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24 local function ldap_filter_escape(s) return (s:gsub("[\\*\\(\\)\\\\%z]", function(c) return ("\\%02x"):format(c:byte()) end)); end
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25 function provider.test_password(username, password)
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26 return do_query({
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27 base = ldap_base;
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28 filter = "(&(uid="..ldap_filter_escape(username)..")(userPassword="..ldap_filter_escape(password)..")(accountStatus=active))";
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29 });
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30 end
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31 function provider.user_exists(username)
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32 return do_query({
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33 base = ldap_base;
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34 filter = "(uid="..ldap_filter_escape(username)..")";
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35 });
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36 end
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37
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38 function provider.get_password(username) return nil, "Passwords unavailable for LDAP."; end
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39 function provider.set_password(username, password) return nil, "Passwords unavailable for LDAP."; end
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40 function provider.create_user(username, password) return nil, "Account creation/modification not available with LDAP."; end
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41
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42 function provider.get_sasl_handler()
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43 local realm = module:get_option("sasl_realm") or module.host;
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44 local testpass_authentication_profile = {
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45 plain_test = function(sasl, username, password, realm)
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46 local prepped_username = nodeprep(username);
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47 if not prepped_username then
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48 log("debug", "NODEprep failed on username: %s", username);
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49 return "", nil;
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50 end
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51 return provider.test_password(prepped_username, password), true;
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52 end
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53 };
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54 return new_sasl(realm, testpass_authentication_profile);
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55 end
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56
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57 module:add_item("auth-provider", provider);