Mercurial > prosody-modules

annotate mod_watchuntrusted/mod_watchuntrusted.lua @ 1734:d82b03e79d8b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_adhoc_blacklist: Provides the Edit Blacklist command described in XEP-0133 and uses this to block s2s connections
author Kim Alvefur <zash@zash.se>
date Thu, 14 May 2015 00:33:32 +0200
parents 2328cbc41045
children 055b39c08fd0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1188
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
1 local jid_prep = require "util.jid".prep;
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
2
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
3 local secure_auth = module:get_option_boolean("s2s_secure_auth", false);
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
4 local secure_domains, insecure_domains =
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
5 module:get_option_set("s2s_secure_domains", {})._items, module:get_option_set("s2s_insecure_domains", {})._items;
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
6
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
7 local untrusted_fail_watchers = module:get_option_set("untrusted_fail_watchers", module:get_option("admins", {})) / jid_prep;
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
8 local untrusted_fail_notification = module:get_option("untrusted_fail_notification", "Establishing a secure connection from $from_host to $to_host failed. Certificate hash: $sha1. $errors");
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
9
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
10 local st = require "util.stanza";
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
11
1675
116488cced16 mod_watchuntrusted: Only notify once per host per day
Kim Alvefur <zash@zash.se>
parents: 1188
diff changeset
12 local notified_about_already = { };
116488cced16 mod_watchuntrusted: Only notify once per host per day
Kim Alvefur <zash@zash.se>
parents: 1188
diff changeset
13
1188
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
14 module:hook_global("s2s-check-certificate", function (event)
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
15 local session, host = event.session, event.host;
1693
2328cbc41045 mod_watchuntrusted: Skip connections to/from unknown hosts (fixes possible traceback)
Kim Alvefur <zash@zash.se>
parents: 1675
diff changeset
16 if not host then return end
1188
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
17 local conn = session.conn:socket();
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
18 local local_host = session.direction == "outgoing" and session.from_host or session.to_host;
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
19
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
20 if not (local_host == module:get_host()) then return end
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
21
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
22 module:log("debug", "Checking certificate...");
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
23 local must_secure = secure_auth;
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
24
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
25 if not must_secure and secure_domains[host] then
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
26 must_secure = true;
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
27 elseif must_secure and insecure_domains[host] then
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
28 must_secure = false;
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
29 end
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
30
1675
116488cced16 mod_watchuntrusted: Only notify once per host per day
Kim Alvefur <zash@zash.se>
parents: 1188
diff changeset
31 if must_secure and (session.cert_chain_status ~= "valid" or session.cert_identity_status ~= "valid") and not notified_about_already[host] then
116488cced16 mod_watchuntrusted: Only notify once per host per day
Kim Alvefur <zash@zash.se>
parents: 1188
diff changeset
32 notified_about_already[host] = os.time();
1188
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
33 local _, errors = conn:getpeerverification();
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
34 local error_message = "";
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
35
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
36 for depth, t in pairs(errors or {}) do
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
37 if #t > 0 then
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
38 error_message = error_message .. "Error with certificate " .. (depth - 1) .. ": " .. table.concat(t, ", ") .. ". ";
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
39 end
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
40 end
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
41
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
42 if session.cert_identity_status then
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
43 error_message = error_message .. "This certificate is " .. session.cert_identity_status .. " for " .. host .. ".";
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
44 end
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
45
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
46 local replacements = { sha1 = event.cert and event.cert:digest("sha1"), errors = error_message };
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
47
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
48 local message = st.message{ type = "chat", from = local_host }
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
49 :tag("body")
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
50 :text(untrusted_fail_notification:gsub("%$([%w_]+)", function (v)
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
51 return event[v] or session and session[v] or replacements and replacements[v] or nil;
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
52 end));
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
53 for jid in untrusted_fail_watchers do
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
54 module:log("debug", "Notifying %s", jid);
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
55 message.attr.to = jid;
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
56 module:send(message);
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
57 end
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
58 end
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
59 end, -0.5);
5eaecb7f680d mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
Thijs Alkemade <me@thijsalkema.de>
parents:
diff changeset
60
1675
116488cced16 mod_watchuntrusted: Only notify once per host per day
Kim Alvefur <zash@zash.se>
parents: 1188
diff changeset
61 module:add_timer(14400, function (now)
116488cced16 mod_watchuntrusted: Only notify once per host per day
Kim Alvefur <zash@zash.se>
parents: 1188
diff changeset
62 for host, time in pairs(notified_about_already) do
116488cced16 mod_watchuntrusted: Only notify once per host per day
Kim Alvefur <zash@zash.se>
parents: 1188
diff changeset
63 if time + 86400 > now then
116488cced16 mod_watchuntrusted: Only notify once per host per day
Kim Alvefur <zash@zash.se>
parents: 1188
diff changeset
64 notified_about_already[host] = nil;
116488cced16 mod_watchuntrusted: Only notify once per host per day
Kim Alvefur <zash@zash.se>
parents: 1188
diff changeset
65 end
116488cced16 mod_watchuntrusted: Only notify once per host per day
Kim Alvefur <zash@zash.se>
parents: 1188
diff changeset
66 end
116488cced16 mod_watchuntrusted: Only notify once per host per day
Kim Alvefur <zash@zash.se>
parents: 1188
diff changeset
67 end)