unsubscribe needs challenge

[drewp]

I tried to clean up a busted subscription, but I get a 409 Subscription verification failed. The target web server isn't even up anymore, but the error makes it sound like hookah still wants to do a challenge sequence. I don't see any point to a challenge for UNsubscribing.

[progrium]

good point. it's not so much the challenge (because that's optional) it's the actual verification request. i'm bringing this up on the pubsubhubbub list.

[progrium]

http://pubsubhubbub.googlecode.com/svn/trunk/pubsubhubbub-core-0.2.html#autorefresh

This should take care of it. They don't want you to be able to DoS the endpoint and then let that allow somebody to unsubscribe you. But if your lease expires and the site is down, it will automatically be removed.