Authentication support via any executable, communication via shell args. Based on work by Cliff Cyphers. https://github.com/ccyphers/websockify

auth.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+
+import os
+
+try:
+    expected = os.environ['EXPECTED_TOKEN']
+    token = os.environ['WEBSOCKIFY_UNSAFE_TOKEN']
+except:
+	exit(-1)
+
+print 'expected = ' + expected
+print 'token = ' + token
+
+if expected == token:
+    exit(0)
+else:
+    exit(1)