4 Commits (main)

Author	SHA1	Message	Date
Marcell Mars	a3881ffa3d	Enhancing Gitea OAuth2 Provider with Granular Scopes for Resource Access (#32573) ... Resolve #31609 This PR was initiated following my personal research to find the lightest possible Single Sign-On solution for self-hosted setups. The existing solutions often seemed too enterprise-oriented, involving many moving parts and services, demanding significant resources while promising planetary-scale capabilities. Others were adequate in supporting basic OAuth2 flows but lacked proper user management features, such as a change password UI. Gitea hits the sweet spot for me, provided it supports more granular access permissions for resources under users who accept the OAuth2 application. This PR aims to introduce granularity in handling user resources as nonintrusively and simply as possible. It allows third parties to inform users about their intent to not ask for the full access and instead request a specific, reduced scope. If the provided scopes are **only** the typical ones for OIDC/OAuth2—`openid`, `profile`, `email`, and `groups`—everything remains unchanged (currently full access to user's resources). Additionally, this PR supports processing scopes already introduced with [personal tokens](https://docs.gitea.com/development/oauth2-provider#scopes) (e.g. `read:user`, `write:issue`, `read:group`, `write:repository`...) Personal tokens define scopes around specific resources: user info, repositories, issues, packages, organizations, notifications, miscellaneous, admin, and activitypub, with access delineated by read and/or write permissions. The initial case I wanted to address was to have Gitea act as an OAuth2 Identity Provider. To achieve that, with this PR, I would only add `openid public-only` to provide access token to the third party to authenticate the Gitea's user but no further access to the API and users resources. Another example: if a third party wanted to interact solely with Issues, it would need to add `read:user` (for authorization) and `read:issue`/`write:issue` to manage Issues. My approach is based on my understanding of how scopes can be utilized, supported by examples like [Sample Use Cases: Scopes and Claims](https://auth0.com/docs/get-started/apis/scopes/sample-use-cases-scopes-and-claims) on auth0.com. I renamed `CheckOAuthAccessToken` to `GetOAuthAccessTokenScopeAndUserID` so now it returns AccessTokenScope and user's ID. In the case of additional scopes in `userIDFromToken` the default `all` would be reduced to whatever was asked via those scopes. The main difference is the opportunity to reduce the permissions from `all`, as is currently the case, to what is provided by the additional scopes described above. Screenshots:     --------- Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>	1 day ago
Baltazár Radics	5eb0ee49a1	Use user.FullName in Oauth2 id_token response (#32542) ... This makes `/login/oauth/authorize` behave the same way as the `/login/oauth/userinfo` endpoint.	5 days ago
Lunny Xiao	b4abb6deff	Reimplement GetUserOrgsList to make it simple and clear (#32486) ... Reimplement GetUserOrgsList and also move some functions and test to org_list file. --------- Co-authored-by: Zettat123 <zettat123@gmail.com>	1 week ago
Lunny Xiao	3a4a1bffbe	Make oauth2 code clear. Move oauth2 provider code to their own packages/files (#32148) ... Fix #30266 Replace #31533	2 months ago