feat: add OAuth authentication

[SMillerDev]

This should allow API clients to authenticate using OAuth

Relates to #2292

[mouse-reeve]

I thought this was going to be a way longer diff when I went to look at it. I'm going to have to take a look at the library and get a little more familiar, but thank you so much for starting on this!

[mouse-reeve]

It looks like this doesn't run yet, so I'm going to mark it as a draft. Feel free to mark it as ready for review once you're ready :)

[SMillerDev]

It was just a missing include. Should work now.

[SMillerDev]

Should be good for another CI run @mouse-reeve

[rabc]

Any idea when it can be merged? Then we can move forward with the API implementation :)

[SMillerDev]

CI seems okay with it, and I'm still interested in working on this when it's merged. Anyone up for a review ?

[mouse-reeve]

Ah I apologize for leaving you hanging on this! I would like to get feedback from other folks on @bookwyrm-social/code-review if yall feel like this is the right first step.

[Minnozz]

I think it is currently not very clear what the scope of this PR is. Is it a first step in developing a client API? Can end users already use it after this is merged? If so, should we not integrate OAuth settings into the user preferences, or at least add a link to the management view of the OAuth application? Should there be a test that at least checks if OAuth is working?

[SMillerDev]

The goal is to add the Oauth library so we can build on that. After this I plan to:

• add Oauth for users so it can be configured for login (that does nothing)
• add an API for user information with that login
• add other APIs

But I'm waiting with the actual configuration because if people don't like this library addition it'll be a lot of reworking

[Minnozz]

Ah yes, I understand. In that case, I think the library you chose seems like a good choice for adding OAuth authentication to BookWyrm.

[SMillerDev]

So, what can I do to make this mergable?

[SMillerDev]

Small prefix to my plans, because of the federated nature I guess I'll need to add something like https://docs.joinmastodon.org/methods/apps/ first so apps can register with the server.

[mouse-reeve]

Thank you for your patience with this @SMillerDev -- I've been a little unsure on how to best move forward on this incrementally but I think this is the right first step. Much appreciated!

[SMillerDev]

Thanks @mouse-reeve ! Hoping to work on app registration soon

[SMillerDev]

#3361 is a first draft of that.