annotate mod_warn_legacy_tls/mod_warn_legacy_tls.lua @ 4989:b74d592df9e2

mod_http_muc_log: Remove dead code This might be something left over since a different variant where the loop went like `for n = i-1, i-100, -1 do ... end` i.e. it went trough a fixed number of items instead of all the page until the current message. Then it would have needed something to stop going over the end, but since the checks are simple it shouldn't be much of a problem looping over even a very busy day.
author Kim Alvefur <zash@zash.se>
date Tue, 16 Aug 2022 01:27:59 +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" });
36023eb3254e mod_warn_legacy_tls: Adapt to warn about TLS < 1.2
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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);
37cef218ba20 mod_sslv3_warn: Module to notice users connected with SSLv3 that they need to upgrade becasue SSLv3 is insecure
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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);