Support for AWS signature version 4

[rlmcpherson]

All regions created after January 30, 2014 (e.g. Frankfurt) support only signature version 4. http://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-authenticating-requests.html

[hydrajump]

Maybe it's possible to solve this by making use of this https://github.com/mitchellh/goamz/blob/master/s3/sign.go

[schelhorn]

I'd also appreciate if this bug (which it is, in my view) would get fixed. s3gof3r is a very nice tool and a real alternative to all the other S3 utilities, but not being able to connect to the Frankfurt region is a deal breaker for me. Obviously, Amazon will at some point turn off the older signatures anyway, so implementing AWS4-HMAC-SHA256 support would have value in its own right, in my opinion.

[ukd1]

@rlmcpherson is this planned anytime? This is a bug, as it totally doesn't work for Frankfurt.

Would you accept a PR?

[trompx]

Same question here, I use Frankfurt buckets so I cannot go with s3gof3r for now..

[rlmcpherson]

@ukd1 Yes, pull requests are always welcome!

[cyberdelia]

#74 aims to fix this.

[rlmcpherson]

Fixed by #74. Thanks @cyberdelia!