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annotate mod_auth_ldap/mod_auth_ldap.lua @ 1252:08e50d742392

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mod_component_roundrobin: Fix handshake (Thanks Julien)
author Kim Alvefur <zash@zash.se>
date Wed, 18 Dec 2013 18:13:03 +0100
parents 3e5f8e844325
children 1b543060f31e
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1
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2 local new_sasl = require "util.sasl".new;
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3 local log = require "util.logger".init("auth_ldap");
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4
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5 local ldap_server = module:get_option_string("ldap_server", "localhost");
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6 local ldap_rootdn = module:get_option_string("ldap_rootdn", "");
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7 local ldap_password = module:get_option_string("ldap_password", "");
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8 local ldap_tls = module:get_option_boolean("ldap_tls");
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9 local ldap_scope = module:get_option_string("ldap_scope", "onelevel");
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10 local ldap_filter = module:get_option_string("ldap_filter", "(uid=%s)");
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11 local ldap_base = assert(module:get_option_string("ldap_base"), "ldap_base is a required option for ldap");
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13 local lualdap = require "lualdap";
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14 local ld = assert(lualdap.open_simple(ldap_server, ldap_rootdn, ldap_password, ldap_tls));
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15 module.unload = function() ld:close(); end
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16
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17 local function ldap_filter_escape(s) return (s:gsub("[\\*\\(\\)\\\\%z]", function(c) return ("\\%02x"):format(c:byte()) end)); end
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19 local function get_user(username)
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20 module:log("debug", "get_user(%q)", username);
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21 return ld:search({
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22 base = ldap_base;
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23 scope = ldap_scope;
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24 filter = ldap_filter:format(ldap_filter_escape(username));
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25 })();
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26 end
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28 local provider = {};
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30 function provider.get_password(username)
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31 local dn, attr = get_user(username);
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32 if dn and attr then
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33 return attr.userPassword;
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34 end
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35 end
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36
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37 function provider.test_password(username, password)
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38 return provider.get_password(username) == password;
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39 end
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40 function provider.user_exists(username)
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41 return not not get_user(username);
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42 end
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43 function provider.set_password(username, password)
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44 local dn, attr = get_user(username);
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45 if not dn then return nil, attr end
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46 if attr.userPassword == password then return true end
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47 return ld:modify(dn, { '=', userPassword = password })();
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48 end
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49 function provider.create_user(username, password) return nil, "Account creation not available with LDAP."; end
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51 function provider.get_sasl_handler()
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52 return new_sasl(module.host, {
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53 plain = function(sasl, username)
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54 local password = provider.get_password(username);
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55 if not password then return "", nil; end
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56 return password, true;
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57 end
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58 });
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59 end
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61 module:provides("auth", provider);