From e5a50872bb62aec41b74052c2f5b22fc777daca6 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Thu, 13 Jun 2013 18:20:49 +0200
Subject: util.sasl.external: Add SASL EXTERNAL mechanism
---
util/sasl.lua | 1 +
util/sasl/external.lua | 25 +++++++++++++++++++++++++
2 files changed, 26 insertions(+)
create mode 100644 util/sasl/external.lua
diff --git a/util/sasl.lua b/util/sasl.lua
index afb3861b..d0da9435 100644
--- a/util/sasl.lua
+++ b/util/sasl.lua
@@ -92,5 +92,6 @@ require "util.sasl.plain" .init(registerMechanism);
require "util.sasl.digest-md5".init(registerMechanism);
require "util.sasl.anonymous" .init(registerMechanism);
require "util.sasl.scram" .init(registerMechanism);
+require "util.sasl.external" .init(registerMechanism);
return _M;
diff --git a/util/sasl/external.lua b/util/sasl/external.lua
new file mode 100644
index 00000000..4c5c4343
--- /dev/null
+++ b/util/sasl/external.lua
@@ -0,0 +1,25 @@
+local saslprep = require "util.encodings".stringprep.saslprep;
+
+module "sasl.external"
+
+local function external(self, message)
+ message = saslprep(message);
+ local state
+ self.username, state = self.profile.external(message);
+
+ if state == false then
+ return "failure", "account-disabled";
+ elseif state == nil then
+ return "failure", "not-authorized";
+ elseif state == "expired" then
+ return "false", "credentials-expired";
+ end
+
+ return "success";
+end
+
+function init(registerMechanism)
+ registerMechanism("EXTERNAL", {"external"}, external);
+end
+
+return _M;
--
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