Mercurial > prosody-modules

annotate mod_auth_ccert/mod_auth_ccert.lua @ 1118:e5441d46d6ff

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_admin_web: Remove unused local
author Florian Zeitz <florob@babelmonkeys.de>
date Mon, 22 Jul 2013 23:42:03 +0200
parents f46307e8e2f8
children 853a382c9bd6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1062
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 -- Copyright (C) 2013 Kim Alvefur
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
2 --
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
3 -- This file is MIT/X11 licensed.
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
4
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
5 local jid_compare = require "util.jid".compare;
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6 local jid_split = require "util.jid".prepped_split;
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
7 local new_sasl = require "util.sasl".new;
1069
d7719bf1aed6 mod_auth_ccert: Add missing OID for email
Kim Alvefur <zash@zash.se>
parents: 1068
diff changeset
8 local now = os.time;
1062
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
9 local log = module._log;
1069
d7719bf1aed6 mod_auth_ccert: Add missing OID for email
Kim Alvefur <zash@zash.se>
parents: 1068
diff changeset
10
1062
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
11 local subject_alternative_name = "2.5.29.17";
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
12 local id_on_xmppAddr = "1.3.6.1.5.5.7.8.5";
1069
d7719bf1aed6 mod_auth_ccert: Add missing OID for email
Kim Alvefur <zash@zash.se>
parents: 1068
diff changeset
13 local oid_emailAddress = "1.2.840.113549.1.9.1";
1062
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
14
1065
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
15 local cert_match = module:get_option("certificate_match", "xmppaddr");
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
16
1068
8ad0d234608c mod_auth_ccert: Pass the session username-outfigurer function too
Kim Alvefur <zash@zash.se>
parents: 1067
diff changeset
17 local username_extractor = {};
1065
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
18
1068
8ad0d234608c mod_auth_ccert: Pass the session username-outfigurer function too
Kim Alvefur <zash@zash.se>
parents: 1067
diff changeset
19 function username_extractor.xmppaddr(cert, authz, session)
1065
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
20 local extensions = cert:extensions();
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
21 local SANs = extensions[subject_alternative_name];
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
22 local xmppAddrs = SANs and SANs[id_on_xmppAddr];
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
23
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
24 if not xmppAddrs then
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
25 (session.log or log)("warn", "Client certificate contains no xmppAddrs");
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
26 return nil, false;
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
27 end
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
28
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
29 for i=1,#xmppAddrs do
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
30 if authz == "" or jid_compare(authz, xmppAddrs[i]) then
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
31 (session.log or log)("debug", "xmppAddrs[%d] %q matches authz %q", i, xmppAddrs[i], authz)
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
32 local username, host = jid_split(xmppAddrs[i]);
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
33 if host == module.host then
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
34 return username, true
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
35 end
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
36 end
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
37 end
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
38 end
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
39
1066
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
40 function username_extractor.email(cert)
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
41 local subject = cert:subject();
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
42 for i=1,#subject do
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
43 local ava = subject[i];
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
44 if ava.oid == oid_emailAddress then
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
45 local username, host = jid_split(ava.value);
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
46 if host == module.host then
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
47 return username, true
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
48 end
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
49 end
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
50 end
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
51 end
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
52
1065
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
53 local find_username = username_extractor[cert_match];
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
54 if not find_username then
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
55 module:log("error", "certificate_match = %q is not supported");
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
56 return
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
57 end
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
58
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
59
1062
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
60 function get_sasl_handler(session)
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
61 return new_sasl(module.host, {
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
62 external = session.secure and function(authz)
1063
b2a4679e7d20 mod_auth_ccert: Accidentally not
Kim Alvefur <zash@zash.se>
parents: 1062
diff changeset
63 if not session.secure then
1062
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
64 -- getpeercertificate() on a TCP connection would be bad, abort!
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
65 (session.log or log)("error", "How did you manage to select EXTERNAL without TLS?");
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
66 return nil, false;
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
67 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
68 local sock = session.conn:socket();
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
69 local cert = sock:getpeercertificate();
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
70 if not cert then
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
71 (session.log or log)("warn", "No certificate provided");
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
72 return nil, false;
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
73 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
74
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
75 if not cert:validat(now()) then
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
76 (session.log or log)("warn", "Client certificate expired")
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
77 return nil, "expired";
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
78 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
79
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
80 local chain_valid, chain_errors = sock:getpeerverification();
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
81 if not chain_valid then
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
82 (session.log or log)("warn", "Invalid client certificate chain");
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
83 for i, error in ipairs(chain_errors) do
1092
f46307e8e2f8 mod_auth_ccert: Use value from ipairs
Kim Alvefur <zash@zash.se>
parents: 1070
diff changeset
84 (session.log or log)("warn", "%d: %s", i, table.concat(error, ", "));
1062
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
85 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
86 return nil, false;
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
87 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
88
1068
8ad0d234608c mod_auth_ccert: Pass the session username-outfigurer function too
Kim Alvefur <zash@zash.se>
parents: 1067
diff changeset
89 return find_username(cert, authz, session);
1062
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
90 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
91 });
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
92 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
93
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
94 module:provides "auth";