annotate mod_warn_legacy_tls/mod_warn_legacy_tls.lua @ 5356:959dc350f2ad

mod_http_oauth2: Declare https as required of URIs in schema If util.jsonschema happens to gain support for 'pattern' (regular expression validation) then this would be picked up. Until then, declarative annotations are nice.
author Kim Alvefur <zash@zash.se>
date Sat, 22 Apr 2023 14:06:41 +0200
parents 406b32b50457
children
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37cef218ba20 mod_sslv3_warn: Module to notice users connected with SSLv3 that they need to upgrade becasue SSLv3 is insecure
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1 local st = require"util.stanza";
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2 local host = module.host;
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3
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36023eb3254e mod_warn_legacy_tls: Adapt to warn about TLS < 1.2
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4 local deprecated_protocols = module:get_option_set("legacy_tls_versions", { "SSLv3", "TLSv1", "TLSv1.1" });
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5 local warning_message = module:get_option_string("legacy_tls_warning", "Your connection is encrypted using the %s protocol, which has known problems and will be disabled soon. Please upgrade your client.");
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7 module:hook("resource-bind", function (event)
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8 local session = event.session;
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9 module:log("debug", "mod_%s sees that %s logged in", module.name, session.username);
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11 local ok, protocol = pcall(function(session)
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12 return session.conn:socket():info"protocol";
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13 end, session);
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14 if not ok then
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15 module:log("debug", "Could not determine TLS version: %s", protocol);
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16 elseif deprecated_protocols:contains(protocol) then
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ec3eb426271e mod_warn_legacy_tls: Log a warning attached to sessions using deprecated TLS versions
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17 session.log("warn", "Uses %s", protocol);
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18 module:add_timer(15, function ()
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19 if session.type == "c2s" and session.resource then
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20 session.send(st.message({ from = host, type = "headline", to = session.full_jid }, warning_message:format(protocol)));
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21 end
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22 end);
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406b32b50457 mod_warn_legacy_tls: Log debug message for acceptable TLS versions
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23 else
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24 module:log("debug", "Using acceptable TLS version: %s", protocol);
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25 end
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26 end);