Mercurial > prosody-modules

annotate mod_auth_ccert/mod_auth_ccert.lua @ 5819:bb51cf204dd4 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_sasl_ssdp: Fix event name so legacy SASL works correctly (thanks Martin!)
author Matthew Wild <mwild1@gmail.com>
date Tue, 09 Jan 2024 13:50:18 +0000
parents 86acfa44dc24
children
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.
3041
86acfa44dc24 mod_auth_ccert: Silence warning about unused global [luacheck]
Kim Alvefur <zash@zash.se>
parents: 1325
diff changeset
4 --
86acfa44dc24 mod_auth_ccert: Silence warning about unused global [luacheck]
Kim Alvefur <zash@zash.se>
parents: 1325
diff changeset
5 -- luacheck: ignore 131/get_sasl_handler
1062
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6
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 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
8 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
9 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
10 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
11 local log = module._log;
1069
d7719bf1aed6 mod_auth_ccert: Add missing OID for email
Kim Alvefur <zash@zash.se>
parents: 1068
diff changeset
12
1062
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
13 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
14 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
15 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
16
1065
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
17 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
18
1068
8ad0d234608c mod_auth_ccert: Pass the session username-outfigurer function too
Kim Alvefur <zash@zash.se>
parents: 1067
diff changeset
19 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
20
1068
8ad0d234608c mod_auth_ccert: Pass the session username-outfigurer function too
Kim Alvefur <zash@zash.se>
parents: 1067
diff changeset
21 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
22 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
23 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
24 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
25
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
26 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
27 (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
28 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
29 end
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
30
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
31 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
32 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
33 (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
34 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
35 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
36 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
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 end
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
40 end
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
41
1066
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
42 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
43 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
44 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
45 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
46 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
47 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
48 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
49 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
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 end
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
53 end
83175a6af8c5 mod_auth_ccert: Add optional method for certificates which contain an email address
Kim Alvefur <zash@zash.se>
parents: 1065
diff changeset
54
1065
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
55 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
56 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
57 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
58 return
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
59 end
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
60
3d04d9377a67 mod_auth_ccert: Prepare for supporting more ways to figure out the username
Kim Alvefur <zash@zash.se>
parents: 1063
diff changeset
61
1062
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
62 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
63 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
64 external = session.secure and function(authz)
1325
b21236b6b8d8 Backed out changeset 853a382c9bd6
Kim Alvefur <zash@zash.se>
parents: 1324
diff changeset
65 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
66 -- 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
67 (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
68 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
69 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
70 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
71 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
72 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
73 (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
74 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
75 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
76
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
77 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
78 (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
79 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
80 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
81
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
82 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
83 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
84 (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
85 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
86 (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
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 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
89 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
90
1068
8ad0d234608c mod_auth_ccert: Pass the session username-outfigurer function too
Kim Alvefur <zash@zash.se>
parents: 1067
diff changeset
91 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
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 end
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
95
f853a1a3aa15 mod_auth_ccert: Initial commit of authentication module for using CA-issued client certificates
Kim Alvefur <zash@zash.se>
parents:
diff changeset
96 module:provides "auth";