Ankur Mhatre
e9381dc5be
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.
69 lines
3.4 KiB
Plaintext
69 lines
3.4 KiB
Plaintext
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------------------------------------------------------------------
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== POST /oauth2/token grant_type=client_credentials
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------------------------------------------------------------------
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$ curl -su demo-service:service-secret -d grant_type=client_credentials \
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-d scope=orders.read http://localhost:9000/oauth2/token
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{
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"access_token": "DE0Ps3Jo6f6IdZ1Jd6bqBg_HnYTatIanVFutxdNihyAkHjlgMHWElxo4TGiWI9oNkxgdOAZZu6vgW9BXZrd_KkYVkKrV238fmHUCD9Xpz0_U3k55Brs9fXcMwxxTKGWa",
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"scope": "orders.read",
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"token_type": "Bearer",
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"expires_in": 599
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}
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------------------------------------------------------------------
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== Not a JWT
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------------------------------------------------------------------
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The access token is an opaque reference: DE0Ps3Jo6f6IdZ1Jd6bqBg_HnYTatIanVFutxdNihyAkHjlgMHWElxo4TGiWI9oNkxgdOAZZu6vgW9BXZrd_KkYVkKrV238fmHUCD9Xpz0_U3k55Brs9fXcMwxxTKGWa
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Length 128. It carries no claims; the resource server must introspect it.
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------------------------------------------------------------------
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== POST /oauth2/introspect
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------------------------------------------------------------------
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{
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"active": true,
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"sub": "demo-service",
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"aud": [
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"demo-service"
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],
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"nbf": 1787538776,
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"scope": "orders.read",
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"iss": "http://localhost:9000",
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"exp": 1787539376,
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"iat": 1787538776,
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"jti": "9d96a819-4f1e-4efb-8816-4523bb6def61",
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"client_id": "demo-service",
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"token_type": "Bearer"
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}
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------------------------------------------------------------------
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== Wrong secret
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------------------------------------------------------------------
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$ curl -si -u demo-service:WRONG -d grant_type=client_credentials http://localhost:9000/oauth2/token
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HTTP/1.1 401
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{"error":"invalid_client"}
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------------------------------------------------------------------
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== A grant the client is not registered for
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------------------------------------------------------------------
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$ curl -si -u demo-service:service-secret -d grant_type=authorization_code -d code=x http://localhost:9000/oauth2/token
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HTTP/1.1 400
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{"error":"invalid_grant"}
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------------------------------------------------------------------
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== A scope the client is not registered for
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------------------------------------------------------------------
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$ curl -s -u demo-service:service-secret -d grant_type=client_credentials -d scope=orders.write http://localhost:9000/oauth2/token
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{"error":"invalid_scope"}
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------------------------------------------------------------------
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== Calling the resource server with the token
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------------------------------------------------------------------
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GET /public -> 401
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WWW-Authenticate: Bearer error="invalid_token", error_description="An error occurred while attempting to decode the Jwt: Malformed token", error_uri="https://tools.ietf.org/html/rfc6750#section-3.1", resource_metadata="http://localhost:8090/.well-known/oauth-protected-resource"
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GET /api/orders -> 401
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WWW-Authenticate: Bearer error="invalid_token", error_description="An error occurred while attempting to decode the Jwt: Malformed token", error_uri="https://tools.ietf.org/html/rfc6750#section-3.1", resource_metadata="http://localhost:8090/.well-known/oauth-protected-resource"
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GET /api/admin -> 401
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WWW-Authenticate: Bearer error="invalid_token", error_description="An error occurred while attempting to decode the Jwt: Malformed token", error_uri="https://tools.ietf.org/html/rfc6750#section-3.1", resource_metadata="http://localhost:8090/.well-known/oauth-protected-resource"
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