ZendOAuth2Client maybe?

Recently I’ve been working a lot on trying to get OAuth2 support into beta 4 of Zend Framework 2, and there were a few challenges. Allowing the client to consume the variety of  providers out there proved to be the first.  There have been several drafts of the OAuth2 specification, and providers have implemented a variety of the drafts. As each of the drafts have subtle differences, the client needs to be able to have a default configuration that can be over-ridden on a per-provider basis.

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