Ankur Mhatre
38c0a5f358
Three modules on Spring Boot 4.1.1 with Spring Authorization Server 7.1.1: the provider
itself, a relying party, and an API that trusts its tokens. Client registration, PKCE,
a custom consent page and token customisation, with profiles that make each failure
reproducible.
Every claim is backed by captured output in docs/output/as-*.txt, regenerated by
authorization-server/scripts/run-all.sh. Notable findings, verified against the jars:
- OAuth2AuthorizationServerConfiguration.applyDefaultSecurity(HttpSecurity) was deleted
in 7.0, and both configuration classes moved into spring-security-config
- ClientSettings.requireProofKey flipped from false to true, on the authorization server
(1.5.8 -> 7.1.1) and on the OAuth2 client (6.5.1 -> 7.1.1)
- requireProofKey(false) does not make PKCE optional for a public client; the code
verifier is that client's only authentication at the token endpoint
- MediaTypeRequestMatcher(TEXT_HTML) matches Accept: */*, so the token endpoint answers
API callers with 302 -> /login unless setIgnoredMediaTypes(ALL) is called
Also renames the repository to spring-auth-demo and cross-links the new chapter set from
the existing documentation.
66 lines
2.9 KiB
Plaintext
66 lines
2.9 KiB
Plaintext
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------------------------------------------------------------------
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== Public client, failed authentication at the token endpoint [acceptall profile: setIgnoredMediaTypes NOT called]
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------------------------------------------------------------------
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A public client authenticates at /oauth2/token by presenting a code_verifier.
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With no verifier there is nothing to authenticate with, so the request falls
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through to the AuthenticationEntryPoint - and which entry point runs depends on
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the Accept header.
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--- Accept: */* (curl's default, and most HTTP clients')
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$ curl -H 'Accept: */*' -d grant_type=authorization_code -d code=bogus \
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-d client_id=demo-spa http://localhost:9000/oauth2/token
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HTTP/1.1 302
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Location: http://localhost:9000/login
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--- Accept: application/json
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$ curl -H 'Accept: application/json' -d grant_type=authorization_code -d code=bogus \
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-d client_id=demo-spa http://localhost:9000/oauth2/token
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HTTP/1.1 401
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--- Accept: text/html (a browser)
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$ curl -H 'Accept: text/html' -d grant_type=authorization_code -d code=bogus \
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-d client_id=demo-spa http://localhost:9000/oauth2/token
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HTTP/1.1 302
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Location: http://localhost:9000/login
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------------------------------------------------------------------
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== Confidential client with a wrong secret, for contrast
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------------------------------------------------------------------
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This never reaches the entry point: OAuth2ClientAuthenticationFilter writes the
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error itself, so the Accept header makes no difference.
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HTTP/1.1 401
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------------------------------------------------------------------
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== Public client, failed authentication at the token endpoint [default profile: setIgnoredMediaTypes(ALL) called]
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------------------------------------------------------------------
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A public client authenticates at /oauth2/token by presenting a code_verifier.
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With no verifier there is nothing to authenticate with, so the request falls
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through to the AuthenticationEntryPoint - and which entry point runs depends on
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the Accept header.
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--- Accept: */* (curl's default, and most HTTP clients')
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$ curl -H 'Accept: */*' -d grant_type=authorization_code -d code=bogus \
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-d client_id=demo-spa http://localhost:9000/oauth2/token
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HTTP/1.1 401
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--- Accept: application/json
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$ curl -H 'Accept: application/json' -d grant_type=authorization_code -d code=bogus \
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-d client_id=demo-spa http://localhost:9000/oauth2/token
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HTTP/1.1 401
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--- Accept: text/html (a browser)
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$ curl -H 'Accept: text/html' -d grant_type=authorization_code -d code=bogus \
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-d client_id=demo-spa http://localhost:9000/oauth2/token
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HTTP/1.1 302
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Location: http://localhost:9000/login
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------------------------------------------------------------------
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== Confidential client with a wrong secret, for contrast
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------------------------------------------------------------------
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This never reaches the entry point: OAuth2ClientAuthenticationFilter writes the
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error itself, so the Accept header makes no difference.
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HTTP/1.1 401
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