spring-projects / spring-projects/spring-security

Default `OidcUser` conversion may return mismatch between `OAuth2User.getName()` and `OidcUser.getName()`

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in: oauth2 type: bug
Dominant language
Java
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Description

Both OidcUserService and OidcReactiveOAuth2UserService may return an OidUser with a different username than the injected (Reactive)OAuth2UserService.

For example, OidcUserService is created without even having access to the OAuth2User.

Note that this blocks gh-16857 since it impacts how the name is resolved.

Related gh-17626 gh-17627 gh-16857

cc @jgrandja

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  4. Open a pull request that references the issue number.

Research direction

Start with OidcUserService.java at the linked construction point and compare it with OidcReactiveOAuth2UserService, including how each uses the injected (Reactive)OAuth2UserService. Trace OAuth2User.getName() and OidcUser.getName() through both conversion paths; done means the names no longer mismatch and the behavior blocking gh-16857 is resolved.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, spring
Domain
authentication, security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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