Mercurial > prosody-modules
annotate mod_watchuntrusted/mod_watchuntrusted.lua @ 6562:5da6fb562df9 default tip
mod_unified_push: Fix push error handling (fixes #2000)
Use the error object that send_iq() passes
as an argument to it's reject callback instead of attempting
and failing to do the parsing in the callback itself.
| author | kmq |
|---|---|
| date | Mon, 06 Jul 2026 14:23:57 +0200 |
| parents | 021eff79a1f5 |
| children |
| rev | line source |
|---|---|
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mod_watchuntrusted: New module that will warn admins about s2s connections that fail due to lack of encryption or invalid certificates.
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1 local jid_prep = require "util.jid".prep; |
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2 |
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3 local secure_auth = module:get_option_boolean("s2s_secure_auth", false); |
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4 local secure_domains, insecure_domains = |
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5 module:get_option_set("s2s_secure_domains", {})._items, module:get_option_set("s2s_insecure_domains", {})._items; |
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6 |
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7 local ignore_domains = module:get_option_set("untrusted_ignore_domains", {})._items; |
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8 |
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9 local untrusted_fail_watchers = module:get_option_set("untrusted_fail_watchers", module:get_option("admins", {})) / jid_prep; |
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10 local untrusted_fail_notification = module:get_option( |
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11 "untrusted_fail_notification", |
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12 "Establishing a secure connection from $from_host to $to_host failed. Certificate hash: $sha256. $errors" |
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13 ); |
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14 |
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15 local msg_type = module:get_option_string("untrusted_message_type", "chat"); |
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16 |
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17 local st = require "util.stanza"; |
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18 |
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19 local notified_about_already = { }; |
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20 |
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21 module:hook_global("s2s-check-certificate", function (event) |
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22 local session, host = event.session, event.host; |
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23 if not host then return end |
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24 local conn = session.conn:socket(); |
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25 local local_host = session.direction == "outgoing" and session.from_host or session.to_host; |
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26 |
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27 if (local_host ~= module:get_host()) then return end |
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28 |
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29 module:log("debug", "Checking certificate..."); |
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30 local certificate_is_valid = false; |
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31 |
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32 if session.cert_chain_status == "valid" and session.cert_identity_status == "valid" then |
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33 certificate_is_valid = true; |
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34 end |
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35 |
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36 local must_secure = secure_auth; |
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37 |
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38 if not must_secure and secure_domains[host] then |
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39 must_secure = true; |
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40 elseif must_secure and insecure_domains[host] then |
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41 must_secure = false; |
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42 end |
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43 |
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44 if must_secure and not certificate_is_valid and not notified_about_already[host] and not ignore_domains[host] then |
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45 notified_about_already[host] = os.time(); |
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46 local _, errors = conn:getpeerverification(); |
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47 local error_message = ""; |
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48 |
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49 for depth, t in pairs(errors or {}) do |
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50 if #t > 0 then |
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51 error_message = error_message .. "Error with certificate " .. (depth - 1) .. ": " .. table.concat(t, ", ") .. ". "; |
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52 end |
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53 end |
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54 |
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55 if session.cert_identity_status then |
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56 error_message = error_message .. "This certificate is " .. session.cert_identity_status .. " for " .. host .. "."; |
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57 end |
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58 |
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59 local replacements = { |
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60 sha1 = event.cert and event.cert:digest("sha1") or "(No certificate)", |
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61 sha256 = event.cert and event.cert:digest("sha256") or "(No certificate)", |
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62 errors = error_message |
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63 }; |
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64 |
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65 local message = st.message({ type = msg_type, from = local_host }, |
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66 untrusted_fail_notification:gsub("%$([%w_]+)", function (v) |
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67 return event[v] or session and session[v] or replacements and replacements[v] or nil; |
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68 end)); |
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69 for jid in untrusted_fail_watchers do |
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70 module:log("debug", "Notifying %s", jid); |
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71 message.attr.to = jid; |
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72 module:send(message); |
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73 end |
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74 end |
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75 end, -0.5); |
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76 |
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77 module:add_timer(14400, function (now) |
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78 for host, time in pairs(notified_about_already) do |
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79 if time + 86400 < now then |
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80 notified_about_already[host] = nil; |
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81 end |
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82 end |
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83 return 14400; |
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84 end) |
