Ouch. Stuff like this is just a confused deputy security vulnerability waiting to happen. Whenever I write code to fetch a resource based on user input (and a

Ouch. Stuff like this is just a confused deputy security vulnerability waiting to happen. Whenever I write code to fetch a resource based on user input (and a crawler following a link is a form of user input) I check to make sure I'm not going to fetch something on an internal network.