We want users of Wikimedia projects to be able to login to Phabicrator using their SUL account (only SUL). This means implementing the right OAuth bits.
From Chris on T40:
"it looks like Phabricator supports twitter and jira OAuth 1 providers. It looks like it would be fairly simple to integrate mediawiki's OAuth 1 provider as an auth plugin, if we don't want to wait on using OAuth2. (note to future self, it looks like we can call and verify mediawiki's /identify method in the getAccountID() call)"