Mercurial > prosody-modules

annotate mod_auth_ldap/mod_auth_ldap.lua @ 1882:99863a6a7b8c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_http_logging: Produce HTTP logs in the style of Apache
author Kim Alvefur <zash@zash.se>
date Wed, 30 Sep 2015 13:36:13 +0200
parents 770236ea9678
children 6d7699eda594
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1273
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
1 -- mod_auth_ldap
293
d76f47a608ab mod_auth_ldap: Convert to real line endings
Matthew Wild <mwild1@gmail.com>
parents: 286
diff changeset
2
d76f47a608ab mod_auth_ldap: Convert to real line endings
Matthew Wild <mwild1@gmail.com>
parents: 286
diff changeset
3 local new_sasl = require "util.sasl".new;
1273
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
4 local lualdap = require "lualdap";
1478
099583539e2c mod_auth_ldap: Remove excess backslashes from escape pattern
Kim Alvefur <zash@zash.se>
parents: 1376
diff changeset
5 local function ldap_filter_escape(s) return (s:gsub("[*()\\%z]", function(c) return ("\\%02x"):format(c:byte()) end)); end
293
d76f47a608ab mod_auth_ldap: Convert to real line endings
Matthew Wild <mwild1@gmail.com>
parents: 286
diff changeset
6
1273
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
7 -- Config options
1162
8e3420d48508 mod_auth_ldap: Switch to type-specific get_option variants
Kim Alvefur <zash@zash.se>
parents: 902
diff changeset
8 local ldap_server = module:get_option_string("ldap_server", "localhost");
8e3420d48508 mod_auth_ldap: Switch to type-specific get_option variants
Kim Alvefur <zash@zash.se>
parents: 902
diff changeset
9 local ldap_rootdn = module:get_option_string("ldap_rootdn", "");
8e3420d48508 mod_auth_ldap: Switch to type-specific get_option variants
Kim Alvefur <zash@zash.se>
parents: 902
diff changeset
10 local ldap_password = module:get_option_string("ldap_password", "");
8e3420d48508 mod_auth_ldap: Switch to type-specific get_option variants
Kim Alvefur <zash@zash.se>
parents: 902
diff changeset
11 local ldap_tls = module:get_option_boolean("ldap_tls");
1163
52bee1247014 mod_auth_ldap: Add a configurable scope, defaulting to onelevel
Kim Alvefur <zash@zash.se>
parents: 1162
diff changeset
12 local ldap_scope = module:get_option_string("ldap_scope", "onelevel");
1287
da2e593317d7 mod_auth_ldap: Switch config format for ldap_filter to eg (uid=$user)
Kim Alvefur <zash@zash.se>
parents: 1274
diff changeset
13 local ldap_filter = module:get_option_string("ldap_filter", "(uid=$user)"):gsub("%%s", "$user", 1);
1162
8e3420d48508 mod_auth_ldap: Switch to type-specific get_option variants
Kim Alvefur <zash@zash.se>
parents: 902
diff changeset
14 local ldap_base = assert(module:get_option_string("ldap_base"), "ldap_base is a required option for ldap");
1479
9a0a0cfd3710 mod_auth_ldap: Change default for ldap_mode to "bind", everyone seems to be using that
Kim Alvefur <zash@zash.se>
parents: 1478
diff changeset
15 local ldap_mode = module:get_option_string("ldap_mode", "bind");
1287
da2e593317d7 mod_auth_ldap: Switch config format for ldap_filter to eg (uid=$user)
Kim Alvefur <zash@zash.se>
parents: 1274
diff changeset
16 local host = ldap_filter_escape(module:get_option_string("realm", module.host));
293
d76f47a608ab mod_auth_ldap: Convert to real line endings
Matthew Wild <mwild1@gmail.com>
parents: 286
diff changeset
17
1273
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
18 -- Initiate connection
1609
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
19 local ld = nil;
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
20 module.unload = function() if ld then pcall(ld, ld.close); end end
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
21
1611
770236ea9678 mod_auth_ldap: Fix use of ldap_search, and generalize it to support password modification as well.
Waqas Hussain <waqas20@gmail.com>
parents: 1610
diff changeset
22 function ldap_do_once(method, ...)
1609
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
23 if ld == nil then
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
24 local err;
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
25 ld, err = lualdap.open_simple(ldap_server, ldap_rootdn, ldap_password, ldap_tls);
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
26 if not ld then return nil, err, "reconnect"; end
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
27 end
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
28
1611
770236ea9678 mod_auth_ldap: Fix use of ldap_search, and generalize it to support password modification as well.
Waqas Hussain <waqas20@gmail.com>
parents: 1610
diff changeset
29 local success, iterator, invariant, initial = pcall(ld[method], ld, ...);
1609
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
30 if not success then ld = nil; return nil, iterator, "search"; end
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
31
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
32 local success, dn, attr = pcall(iterator, invariant, initial);
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
33 if not success then ld = nil; return success, dn, "iter"; end
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
34
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
35 return dn, attr, "return";
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
36 end
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
37
1611
770236ea9678 mod_auth_ldap: Fix use of ldap_search, and generalize it to support password modification as well.
Waqas Hussain <waqas20@gmail.com>
parents: 1610
diff changeset
38 function ldap_do(method, retry_count, ...)
1609
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
39 local dn, attr, where;
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
40 for i=1,1+retry_count do
1611
770236ea9678 mod_auth_ldap: Fix use of ldap_search, and generalize it to support password modification as well.
Waqas Hussain <waqas20@gmail.com>
parents: 1610
diff changeset
41 dn, attr, where = ldap_do_once(method, ...);
1609
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
42 if dn or not(attr) then break; end -- nothing or something found
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
43 module:log("warn", "LDAP: %s %s (in %s)", tostring(dn), tostring(attr), where);
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
44 -- otherwise retry
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
45 end
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
46 if not dn and attr then
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
47 module:log("error", "LDAP: %s", tostring(attr));
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
48 end
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
49 return dn, attr;
5f139770061e mod_auth_ldap: Connect to LDAP lazily, and add support for reconnects on error.
Waqas Hussain <waqas20@gmail.com>
parents: 1479
diff changeset
50 end
293
d76f47a608ab mod_auth_ldap: Convert to real line endings
Matthew Wild <mwild1@gmail.com>
parents: 286
diff changeset
51
1190
c99d8b666eb4 mod_auth_ldap: Convert from plain_test to plain mode, allowing SCRAM and similar.
Kim Alvefur <zash@zash.se>
parents: 1163
diff changeset
52 local function get_user(username)
c99d8b666eb4 mod_auth_ldap: Convert from plain_test to plain mode, allowing SCRAM and similar.
Kim Alvefur <zash@zash.se>
parents: 1163
diff changeset
53 module:log("debug", "get_user(%q)", username);
1611
770236ea9678 mod_auth_ldap: Fix use of ldap_search, and generalize it to support password modification as well.
Waqas Hussain <waqas20@gmail.com>
parents: 1610
diff changeset
54 return ldap_do("search", 2, {
1190
c99d8b666eb4 mod_auth_ldap: Convert from plain_test to plain mode, allowing SCRAM and similar.
Kim Alvefur <zash@zash.se>
parents: 1163
diff changeset
55 base = ldap_base;
c99d8b666eb4 mod_auth_ldap: Convert from plain_test to plain mode, allowing SCRAM and similar.
Kim Alvefur <zash@zash.se>
parents: 1163
diff changeset
56 scope = ldap_scope;
1375
90bde50b3915 mod_auth_ldap: Limit results in user lookup query to 1
Kim Alvefur <zash@zash.se>
parents: 1374
diff changeset
57 sizelimit = 1;
1287
da2e593317d7 mod_auth_ldap: Switch config format for ldap_filter to eg (uid=$user)
Kim Alvefur <zash@zash.se>
parents: 1274
diff changeset
58 filter = ldap_filter:gsub("%$(%a+)", {
da2e593317d7 mod_auth_ldap: Switch config format for ldap_filter to eg (uid=$user)
Kim Alvefur <zash@zash.se>
parents: 1274
diff changeset
59 user = ldap_filter_escape(username);
da2e593317d7 mod_auth_ldap: Switch config format for ldap_filter to eg (uid=$user)
Kim Alvefur <zash@zash.se>
parents: 1274
diff changeset
60 host = host;
da2e593317d7 mod_auth_ldap: Switch config format for ldap_filter to eg (uid=$user)
Kim Alvefur <zash@zash.se>
parents: 1274
diff changeset
61 });
1611
770236ea9678 mod_auth_ldap: Fix use of ldap_search, and generalize it to support password modification as well.
Waqas Hussain <waqas20@gmail.com>
parents: 1610
diff changeset
62 });
293
d76f47a608ab mod_auth_ldap: Convert to real line endings
Matthew Wild <mwild1@gmail.com>
parents: 286
diff changeset
63 end
d76f47a608ab mod_auth_ldap: Convert to real line endings
Matthew Wild <mwild1@gmail.com>
parents: 286
diff changeset
64
814
881ec9919144 mod_auth_*: Use module:provides(), and don't explicitly specify provider.name.
Waqas Hussain <waqas20@gmail.com>
parents: 342
diff changeset
65 local provider = {};
293
d76f47a608ab mod_auth_ldap: Convert to real line endings
Matthew Wild <mwild1@gmail.com>
parents: 286
diff changeset
66
1273
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
67 function provider.create_user(username, password)
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
68 return nil, "Account creation not available with LDAP.";
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
69 end
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
70
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
71 function provider.user_exists(username)
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
72 return not not get_user(username);
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
73 end
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
74
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
75 function provider.set_password(username, password)
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
76 local dn, attr = get_user(username);
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
77 if not dn then return nil, attr end
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
78 if attr.userPassword == password then return true end
1611
770236ea9678 mod_auth_ldap: Fix use of ldap_search, and generalize it to support password modification as well.
Waqas Hussain <waqas20@gmail.com>
parents: 1610
diff changeset
79 return ldap_do("modify", 2, dn, { '=', userPassword = password });
1273
1b543060f31e mod_auth_ldap: Cleanup, reorder and some comments
Kim Alvefur <zash@zash.se>
parents: 1221
diff changeset
80 end
1274
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
81
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
82 if ldap_mode == "getpasswd" then
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
83 function provider.get_password(username)
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
84 local dn, attr = get_user(username);
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
85 if dn and attr then
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
86 return attr.userPassword;
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
87 end
1190
c99d8b666eb4 mod_auth_ldap: Convert from plain_test to plain mode, allowing SCRAM and similar.
Kim Alvefur <zash@zash.se>
parents: 1163
diff changeset
88 end
1274
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
89
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
90 function provider.test_password(username, password)
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
91 return provider.get_password(username) == password;
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
92 end
1190
c99d8b666eb4 mod_auth_ldap: Convert from plain_test to plain mode, allowing SCRAM and similar.
Kim Alvefur <zash@zash.se>
parents: 1163
diff changeset
93
1274
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
94 function provider.get_sasl_handler()
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
95 return new_sasl(module.host, {
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
96 plain = function(sasl, username)
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
97 local password = provider.get_password(username);
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
98 if not password then return "", nil; end
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
99 return password, true;
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
100 end
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
101 });
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
102 end
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
103 elseif ldap_mode == "bind" then
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
104 local function test_password(userdn, password)
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
105 return not not lualdap.open_simple(ldap_server, userdn, password, ldap_tls);
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
106 end
293
d76f47a608ab mod_auth_ldap: Convert to real line endings
Matthew Wild <mwild1@gmail.com>
parents: 286
diff changeset
107
1274
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
108 function provider.test_password(username, password)
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
109 local dn = get_user(username);
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
110 if not dn then return end
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
111 return test_password(dn, password)
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
112 end
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
113
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
114 function provider.get_sasl_handler()
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
115 return new_sasl(module.host, {
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
116 plain_test = function(sasl, username, password)
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
117 return provider.test_password(username, password), true;
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
118 end
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
119 });
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
120 end
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
121 else
4b15437d6c56 mod_auth_ldap: Add support for binding
Kim Alvefur <zash@zash.se>
parents: 1273
diff changeset
122 module:log("error", "Unsupported ldap_mode %s", tostring(ldap_mode));
293
d76f47a608ab mod_auth_ldap: Convert to real line endings
Matthew Wild <mwild1@gmail.com>
parents: 286
diff changeset
123 end
d76f47a608ab mod_auth_ldap: Convert to real line endings
Matthew Wild <mwild1@gmail.com>
parents: 286
diff changeset
124
814
881ec9919144 mod_auth_*: Use module:provides(), and don't explicitly specify provider.name.
Waqas Hussain <waqas20@gmail.com>
parents: 342
diff changeset
125 module:provides("auth", provider);