Seems like a lot of people have problems getting oAuth to work with Photobucket and now I'm one of them, I keep getting:
"Authentication failed signature check failed"
When trying to get a request token, here is the header info I send along:
OAuth realm=""
oauth_consumer_key="XXXXXXXXX"
oauth_signature_method="HMAC-SHA1"
oauth_signature="BHHJ4o7zXOlfln4Xpik5rPtjZv8%3D"
oauth_timestamp="1323470655"
oauth_nonce="2FEC3150-8AB9-4BBC-BC4B-FA5AE7EC8046"
oauth_version="1.0"
and my BASE string used to generate the signature:
POST&http%3A%2F%2Fapi.photobucket.com%2Flogin%2Frequest&format%3Djson%26oauth_consumer_key%3DXXXXXXXXX%26oauth_nonce%3D2FEC3150-8AB9-4BBC-BC4B-FA5AE7EC8046%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1323470655%26oauth_version%3D1.0
Everything seems on the up and up and I'm using the same library that I've been using for several other photo/video sharing sites with no problems, this is on iOS...
Thanks
Turns out that even though photobucket causes your requests to sometimes go to api####.photobucket.com (your special load balancing URL) you still have to specify your base string as api.photobucket.com which makes no sense and TOTALLY BREAKS oAuth since you're now setting your base string to a different url than where you're making the request :p
So, be vigilant and always make sure your base string is api.photobucket.com
sigh