automatic authentication is allowed
c AUTOAUTH <username>\n
s 200 Auth OK\n or 404 Bad Username\n or 401 Untrusted\n
+--- Set effective user (User in `dispense -u`) ---
+c SETEUSER <username>\n
+s 200 User set\n or 403 Not in coke\n or 404 User not found\n
=== Commands ===
--- Dispense an item ---