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mod_saslauth: Use a configurable set of mechanisms to not allow over unencrypted connections

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This commit is contained in:
Kim Alvefur 2014-10-21 14:35:32 +02:00
parent 371d996a7d
commit 73979a83fd
1 changed files with 3 additions and 2 deletions
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5
plugins/mod_saslauth.lua
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@ -18,6 +18,7 @@ local tostring = tostring;
local secure_auth_only = module:get_option_boolean("c2s_require_encryption", module:get_option_boolean("require_encryption", false));
local allow_unencrypted_plain_auth = module:get_option_boolean("allow_unencrypted_plain_auth", false)
local insecure_mechanisms = module:get_option_set("allow_unencrypted_sasl", allow_unencrypted_plain_auth and {} or {"PLAIN"});
local log = module._log;
@ -183,7 +184,7 @@ module:hook("stanza/urn:ietf:params:xml:ns:xmpp-sasl:auth", function(event)
session.sasl_handler = usermanager_get_sasl_handler(module.host, session);
end
local mechanism = stanza.attr.mechanism;
if not session.secure and (secure_auth_only or (mechanism == "PLAIN" and not allow_unencrypted_plain_auth)) then
if not session.secure and (secure_auth_only or insecure_mechanisms:contains(mechanism)) then
session.send(build_reply("failure", "encryption-required"));
return true;
end
@ -231,7 +232,7 @@ module:hook("stream-features", function(event)
end
local mechanisms = st.stanza("mechanisms", mechanisms_attr);
for mechanism in pairs(origin.sasl_handler:mechanisms()) do
if mechanism ~= "PLAIN" or origin.secure or allow_unencrypted_plain_auth then
if (origin.secure or not insecure_mechanisms:contains(mechanism)) then
mechanisms:tag("mechanism"):text(mechanism):up();
end
end