annotate mod_watchuntrusted/mod_watchuntrusted.lua @ 5519:83ebfc367169

mod_http_oauth2: Return Authentication Time per OpenID Core Section 2 Mandatory To Implement, either MUST include or OPTIONAL depending on things we don't look at, so might as well include it all the time. Since we do not persist authentication state with cookies or such, the authentication time will always be some point between the user being sent to the authorization endpoint and the time they are sent back to the client application.
author Kim Alvefur <zash@zash.se>
date Mon, 05 Jun 2023 22:32:44 +0200
parents 0e78523f8c20
children
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1 local jid_prep = require "util.jid".prep;
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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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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("untrusted_fail_notification", "Establishing a secure connection from $from_host to $to_host failed. Certificate hash: $sha256. $errors");
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12 local msg_type = module:get_option_string("untrusted_message_type", "chat");
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14 local st = require "util.stanza";
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16 local notified_about_already = { };
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18 module:hook_global("s2s-check-certificate", function (event)
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19 local session, host = event.session, event.host;
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20 if not host then return end
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21 local conn = session.conn:socket();
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22 local local_host = session.direction == "outgoing" and session.from_host or session.to_host;
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24 if not (local_host == module:get_host()) then return end
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26 module:log("debug", "Checking certificate...");
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27 local certificate_is_valid = false;
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29 if session.cert_chain_status == "valid" and session.cert_identity_status == "valid" then
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30 certificate_is_valid = true;
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31 end
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33 local must_secure = secure_auth;
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35 if not must_secure and secure_domains[host] then
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36 must_secure = true;
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37 elseif must_secure and insecure_domains[host] then
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38 must_secure = false;
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39 end
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41 if must_secure and not certificate_is_valid and not notified_about_already[host] and not ignore_domains[host] then
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42 notified_about_already[host] = os.time();
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43 local _, errors = conn:getpeerverification();
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44 local error_message = "";
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46 for depth, t in pairs(errors or {}) do
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47 if #t > 0 then
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48 error_message = error_message .. "Error with certificate " .. (depth - 1) .. ": " .. table.concat(t, ", ") .. ". ";
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49 end
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50 end
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52 if session.cert_identity_status then
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53 error_message = error_message .. "This certificate is " .. session.cert_identity_status .. " for " .. host .. ".";
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54 end
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55
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56 local replacements = {
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57 sha1 = event.cert and event.cert:digest("sha1") or "(No certificate)",
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58 sha256 = event.cert and event.cert:digest("sha256") or "(No certificate)",
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59 errors = error_message
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60 };
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62 local message = st.message({ type = msg_type, from = local_host },
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63 untrusted_fail_notification:gsub("%$([%w_]+)", function (v)
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64 return event[v] or session and session[v] or replacements and replacements[v] or nil;
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65 end));
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66 for jid in untrusted_fail_watchers do
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67 module:log("debug", "Notifying %s", jid);
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68 message.attr.to = jid;
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69 module:send(message);
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70 end
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71 end
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72 end, -0.5);
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74 module:add_timer(14400, function (now)
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75 for host, time in pairs(notified_about_already) do
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76 if time + 86400 < now then
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77 notified_about_already[host] = nil;
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78 end
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79 end
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80 return 14400;
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81 end)