prosody-modules
fa7165dd82ee
mod_auth_ldap/mod_auth_ldap.lua

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mod_auth_ldap/mod_auth_ldap.lua @ 191:fa7165dd82ee

mod_auth_ldap: An auth plugin for authentication against LDAP.
author Waqas Hussain <waqas20@gmail.com>
date Thu, 01 Jul 2010 00:52:45 +0500
child 218:4a91047f9b5e
comparison
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190:7a695ee3884b 191:fa7165dd82ee
1
2 local new_sasl = require "util.sasl".new;
3 local nodeprep = require "util.encodings".stringprep.nodeprep;
4 local log = require "util.logger".init("auth_ldap");
5
6 local ldap_server = module:get_option("ldap_server") or "localhost";
7 local ldap_rootdn = module:get_option("ldap_rootdn") or "";
8 local ldap_password = module:get_option("ldap_password") or "";
9 local ldap_tls = module:get_option("ldap_tls");
10 local ldap_base = assert(module:get_option("ldap_base"), "ldap_base is a required option for ldap");
11
12 local lualdap = require "lualdap";
13 local ld = assert(lualdap.open_simple(ldap_server, ldap_rootdn, ldap_password, ldap_tls));
14 module.unload = function() ld:close(); end
15
16 function do_query(query)
17 for dn, attribs in ld:search(query) do
18 return true; -- found a result
19 end
20 end
21
22 local provider = { name = "ldap" };
23
24 local function ldap_filter_escape(s) return (s:gsub("[\\*\\(\\)\\\\%z]", function(c) return ("\\%02x"):format(c:byte()) end)); end
25 function provider.test_password(username, password)
26 return do_query({
27 base = ldap_base;
28 filter = "(&(uid="..ldap_filter_escape(username)..")(userPassword="..ldap_filter_escape(password)..")(accountStatus=active))";
29 });
30 end
31 function provider.user_exists(username)
32 return do_query({
33 base = ldap_base;
34 filter = "(uid="..ldap_filter_escape(username)..")";
35 });
36 end
37
38 function provider.get_password(username) return nil, "Passwords unavailable for LDAP."; end
39 function provider.set_password(username, password) return nil, "Passwords unavailable for LDAP."; end
40 function provider.create_user(username, password) return nil, "Account creation/modification not available with LDAP."; end
41
42 function provider.get_sasl_handler()
43 local realm = module:get_option("sasl_realm") or module.host;
44 local testpass_authentication_profile = {
45 plain_test = function(username, password, realm)
46 local prepped_username = nodeprep(username);
47 if not prepped_username then
48 log("debug", "NODEprep failed on username: %s", username);
49 return "", nil;
50 end
51 return provider.test_password(prepped_username, password, realm), true;
52 end
53 };
54 return new_sasl(realm, testpass_authentication_profile);
55 end
56
57 module:add_item("auth-provider", provider);