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prosody
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plugins/mod_mimicking.lua @ 12482:b193f8a2737e
mod_tls: Do not offer TLS if the connection is considered secure
This may be necessary if the session.conn object is not exchanged by the
network backend when establishing TLS. In that case, the starttls method
will always exist and thus that is not a good indicator for offering
TLS.
However, the secure bit already tells us that TLS has been established
or is not to be established on the connection, so we use that instead.
author | Jonas Schäfer <jonas@wielicki.name> |
---|---|
date | Fri, 17 Sep 2021 21:18:30 +0200 |
parent | 11848:b4d4f0339e16 |
child | 12977:74b9e05af71e |
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-- Prosody IM -- Copyright (C) 2012 Florian Zeitz -- Copyright (C) 2019 Kim Alvefur -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local encodings = require "util.encodings"; assert(encodings.confusable, "This module requires that Prosody be built with ICU"); local skeleton = encodings.confusable.skeleton; local usage = require "util.prosodyctl".show_usage; local usermanager = require "core.usermanager"; local storagemanager = require "core.storagemanager"; local skeletons function module.load() if module.host ~= "*" then skeletons = module:open_store("skeletons"); end end module:hook("user-registered", function(user) local skel = skeleton(user.username); local ok, err = skeletons:set(skel, { username = user.username }); if not ok then module:log("error", "Unable to store mimicry data (%q => %q): %s", user.username, skel, err); end end); module:hook_global("user-deleted", function(user) if user.host ~= module.host then return end local skel = skeleton(user.username); local ok, err = skeletons:set(skel, nil); if not ok and err then module:log("error", "Unable to clear mimicry data (%q): %s", skel, err); end end); module:hook("user-registering", function(user) local existing, err = skeletons:get(skeleton(user.username)); if existing then module:log("debug", "Attempt to register username '%s' which could be confused with '%s'", user.username, existing.username); user.allowed = false; elseif err then module:log("error", "Unable to check if new username '%s' can be confused with any existing user: %s", err); end end); function module.command(arg) if (arg[1] ~= "bootstrap" or not arg[2]) then usage("mod_mimicking bootstrap <host>", "Initialize username mimicry database"); return; end local host = arg[2]; local host_session = prosody.hosts[host]; if not host_session then return "No such host"; end storagemanager.initialize_host(host); usermanager.initialize_host(host); skeletons = storagemanager.open(host, "skeletons"); local count = 0; for user in usermanager.users(host) do local skel = skeleton(user); local existing, err = skeletons:get(skel); if existing and existing.username ~= user then module:log("warn", "Existing usernames '%s' and '%s' are confusable", existing.username, user); elseif err then module:log("error", "Error checking for existing mimicry data (%q = %q): %s", user, skel, err); end local ok, err = skeletons:set(skel, { username = user }); if ok then count = count + 1; elseif err then module:log("error", "Unable to store mimicry data (%q => %q): %s", user, skel, err); end end module:log("info", "%d usernames indexed", count); end