- Support has been added for "RFC7636: Proof Key for Code Exchange by OAuth Public Clients" (PKCE, pronounced "pixy") to mitigate against attacks targeting the interception of the authorization code
- PkceParameterNames was added for the 3 additional parameters used by PKCE (i.e. code_verifier, code_challenge, and code_challenge_method)
- Default code_verifier length has been set to 128 characters--the maximum allowed by RFC7636
- ClientAuthenticationMethod.NONE was added to allow clients to request tokens without providing a client secret
Fixes gh-6446
When we used the oauth2Client directive and requested an endpoint that
required client authorization on the authorization server, the
SPRING_SECURITY_SAVED_REQUEST was not persisted, and therefore after
creating the authorized client we were redirected to the root page ("/").
Now we are storing the session attribute and getting redirected back to
the original URI as expected.
Note that the attribute is stored only when a
ClientAuthorizationRequiredException is thrown in the chain, we dont
want to store it as a response to the
/oauth2/authorization/{registrationId} endpoint, since we would end
up in an infinite loop
Fixes gh-6341
This commit ensures that the JwtDecoderFactory is not a private field inside
the Oidc authentication provider by extracting this class and giving the
possibility to customize the way different providers are validated.
Fixes: gh-6379
Once client credentials access token has expired retrieve a new token from the OAuth2 authorization server.
These tokens can't be refreshed because they do not have a refresh token associated with. This is standard behaviour for Oauth 2 client credentails
Fixes gh-5893
Added the ability to specify a custom WebClient in
WebClientReactiveClientCredentialsTokenResponseClient.
Also added testing to ensure the custom WebClient is not null and is
used.
Fixes: gh-6051
This ensures that the same URL can work for both log in and
authorization code which prevents having to create additional registrations
on the client and potentially on the server (GitHub only allows a single
valid redirect URL).
Fixes: gh-5856
Extract out a private API for shared code between the argument resolver
and WebClient support. This makes it easier to make changes in both
locations. Later we will extract this out so it is not a copy/paste
effort.
Issue: gh-4921
