Update MicrosoftAccount to use graph API & converged authentication

[OsmanMElsayed]

• Time has come to update Microsoft.AspNetCore.Authentication.MicrosoftAccount package to target Microsoft graph API as Live Connect API & Identity API are depreciated. For this, we need to issue tokens from the app model v2.0 endpoints which will extend the reach of the package to all work/school accounts which is clearly a big added value.
• App model v2.0 has been in public preview since Aug 2015. AFAIK the GA is very close & it is expected to be in Feb & there are no expected breaking changes
• Unfortunately, existing Microsoft account apps are not compatible with app model v2.0 & a new app registration is required. That's why this update is considered a breaking change. Check Restrictions on App #Registrations
  #92

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[Tratcher]

Very promising.

@blowdart Are you aware of this transition for MSA?

[blowdart]

Yup. We ought to run this past @brentschmaltz et al.

[Tratcher]

These need sorting, with System on top.

[Tratcher]

@OsmanMElsayed did you test this with an outlook.com account? I can't get it working, it keeps complaining about redirect uri mismatches no matter how I configure it.

[OsmanMElsayed]

Does that happen with outlook accounts only or it applies to all Microsoft accounts? If it applies to all Microsoft accounts, then please make sure that the registered redirect uri for your app contains the configured CallbackPath.
This is actually very confusing because the app model v2 authorize endpoint will not complain about the redirect uri & everything will look fine. But if u try to login with a Microsoft account you will get the redirect uri mismatch error.

[OsmanMElsayed]

Hooray!
app model v2 is GA

[Tratcher]

Rebased and merged. The problem I ran into was because my old local usersecrets were overwriting the config.json so I was using the wrong client id.