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Check Issuer with Issuer Provided

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Signed-off-by: Josh Cummings <3627351+jzheaux@users.noreply.github.com>
This commit is contained in:
Josh Cummings 2026-04-15 18:23:22 -06:00
parent 44d32815b1
commit 68b820ed09
4 changed files with 63 additions and 7 deletions
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15
oauth2/oauth2-jose/src/main/java/org/springframework/security/oauth2/jwt/NimbusJwtDecoder.java
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@ -230,7 +230,8 @@ public final class NimbusJwtDecoder implements JwtDecoder {
.getConfigurationForIssuerLocation(issuer, rest);
JwtDecoderProviderConfigurationUtils.validateIssuer(configuration, issuer);
return configuration.get("jwks_uri").toString();
}, JwtDecoderProviderConfigurationUtils::getJWSAlgorithms);
}, JwtDecoderProviderConfigurationUtils::getJWSAlgorithms)
.validator(JwtValidators.createDefaultWithIssuer(issuer));
}
/**
@ -289,6 +290,8 @@ public final class NimbusJwtDecoder implements JwtDecoder {
private Consumer<ConfigurableJWTProcessor<SecurityContext>> jwtProcessorCustomizer;
private OAuth2TokenValidator<Jwt> validator = JwtValidators.createDefault();
private JwkSetUriJwtDecoderBuilder(String jwkSetUri) {
Assert.hasText(jwkSetUri, "jwkSetUri cannot be empty");
this.jwkSetUri = (rest) -> jwkSetUri;
@ -423,6 +426,12 @@ public final class NimbusJwtDecoder implements JwtDecoder {
return this;
}
JwkSetUriJwtDecoderBuilder validator(OAuth2TokenValidator<Jwt> validator) {
Assert.notNull(validator, "validator cannot be null");
this.validator = validator;
return this;
}
JWSKeySelector<SecurityContext> jwsKeySelector(JWKSource<SecurityContext> jwkSource) {
if (this.signatureAlgorithms.isEmpty()) {
return new JWSVerificationKeySelector<>(this.defaultAlgorithms.apply(jwkSource), jwkSource);
@ -461,7 +470,9 @@ public final class NimbusJwtDecoder implements JwtDecoder {
* @return the configured {@link NimbusJwtDecoder}
*/
public NimbusJwtDecoder build() {
return new NimbusJwtDecoder(processor());
NimbusJwtDecoder decoder = new NimbusJwtDecoder(processor());
decoder.setJwtValidator(this.validator);
return decoder;
}
private static final class SpringJWKSource<C extends SecurityContext> implements JWKSetSource<C> {

14
oauth2/oauth2-jose/src/main/java/org/springframework/security/oauth2/jwt/NimbusReactiveJwtDecoder.java
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@ -241,7 +241,8 @@ public final class NimbusReactiveJwtDecoder implements ReactiveJwtDecoder {
}
return Mono.just(configuration.get("jwks_uri").toString());
}),
ReactiveJwtDecoderProviderConfigurationUtils::getJWSAlgorithms);
ReactiveJwtDecoderProviderConfigurationUtils::getJWSAlgorithms)
.validator(JwtValidators.createDefaultWithIssuer(issuer));
}
/**
@ -332,6 +333,8 @@ public final class NimbusReactiveJwtDecoder implements ReactiveJwtDecoder {
private BiFunction<ReactiveRemoteJWKSource, ConfigurableJWTProcessor<JWKSecurityContext>, Mono<ConfigurableJWTProcessor<JWKSecurityContext>>> jwtProcessorCustomizer;
private OAuth2TokenValidator<Jwt> validator = JwtValidators.createDefault();
private JwkSetUriReactiveJwtDecoderBuilder(String jwkSetUri) {
Assert.hasText(jwkSetUri, "jwkSetUri cannot be empty");
this.jwkSetUri = (web) -> Mono.just(jwkSetUri);
@ -456,6 +459,11 @@ public final class NimbusReactiveJwtDecoder implements ReactiveJwtDecoder {
return this;
}
JwkSetUriReactiveJwtDecoderBuilder validator(OAuth2TokenValidator<Jwt> validator) {
this.validator = validator;
return this;
}
JwkSetUriReactiveJwtDecoderBuilder jwtProcessorCustomizer(
BiFunction<ReactiveRemoteJWKSource, ConfigurableJWTProcessor<JWKSecurityContext>, Mono<ConfigurableJWTProcessor<JWKSecurityContext>>> jwtProcessorCustomizer) {
Assert.notNull(jwtProcessorCustomizer, "jwtProcessorCustomizer cannot be null");
@ -468,7 +476,9 @@ public final class NimbusReactiveJwtDecoder implements ReactiveJwtDecoder {
* @return the configured {@link NimbusReactiveJwtDecoder}
*/
public NimbusReactiveJwtDecoder build() {
return new NimbusReactiveJwtDecoder(processor());
NimbusReactiveJwtDecoder decoder = new NimbusReactiveJwtDecoder(processor());
decoder.setJwtValidator(this.validator);
return decoder;
}
Mono<JWSKeySelector<JWKSecurityContext>> jwsKeySelector(ReactiveRemoteJWKSource source) {

17
oauth2/oauth2-jose/src/test/java/org/springframework/security/oauth2/jwt/NimbusJwtDecoderTests.java
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@ -328,11 +328,26 @@ public class NimbusJwtDecoderTests {
.willReturn(new ResponseEntity<>(Map.of("issuer", issuer, "jwks_uri", issuer + "/jwks"), HttpStatus.OK));
given(restOperations.exchange(any(RequestEntity.class), eq(String.class)))
.willReturn(new ResponseEntity<>(JWK_SET, HttpStatus.OK));
JwtDecoder jwtDecoder = NimbusJwtDecoder.withIssuerLocation(issuer).restOperations(restOperations).build();
NimbusJwtDecoder jwtDecoder = NimbusJwtDecoder.withIssuerLocation(issuer)
.restOperations(restOperations)
.build();
jwtDecoder.setJwtValidator(JwtValidators.createDefault());
Jwt jwt = jwtDecoder.decode(SIGNED_JWT);
assertThat(jwt.hasClaim(JwtClaimNames.EXP)).isNotNull();
}
@Test
public void decodeWhenIssuerLocationThenRejectsMismatchingIssuers() {
String issuer = "https://example.org/wrong-issuer";
RestOperations restOperations = mock(RestOperations.class);
given(restOperations.exchange(any(RequestEntity.class), any(ParameterizedTypeReference.class)))
.willReturn(new ResponseEntity<>(Map.of("issuer", issuer, "jwks_uri", issuer + "/jwks"), HttpStatus.OK));
given(restOperations.exchange(any(RequestEntity.class), eq(String.class)))
.willReturn(new ResponseEntity<>(JWK_SET, HttpStatus.OK));
JwtDecoder jwtDecoder = NimbusJwtDecoder.withIssuerLocation(issuer).restOperations(restOperations).build();
assertThatExceptionOfType(JwtValidationException.class).isThrownBy(() -> jwtDecoder.decode(SIGNED_JWT));
}
@Test
public void withJwkSetUriWhenNullOrEmptyThenThrowsException() {
// @formatter:off

24
oauth2/oauth2-jose/src/test/java/org/springframework/security/oauth2/jwt/NimbusReactiveJwtDecoderTests.java
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@ -617,11 +617,31 @@ public class NimbusReactiveJwtDecoderTests {
given(responseSpec.bodyToMono(any(ParameterizedTypeReference.class)))
.willReturn(Mono.just(Map.of("issuer", issuer, "jwks_uri", issuer + "/jwks")));
given(spec.retrieve()).willReturn(responseSpec);
NimbusReactiveJwtDecoder jwtDecoder = NimbusReactiveJwtDecoder.withIssuerLocation(issuer)
.webClient(webClient)
.build();
jwtDecoder.setJwtValidator(JwtValidators.createDefault());
Jwt jwt = jwtDecoder.decode(this.messageReadToken).block();
assertThat(jwt.hasClaim(JwtClaimNames.EXP)).isNotNull();
}
@Test
public void decodeWhenIssuerLocationThenRejectsMismatchingIssuers() {
String issuer = "https://example.org/wrong-issuer";
WebClient real = WebClient.builder().build();
WebClient.RequestHeadersUriSpec spec = spy(real.get());
WebClient webClient = spy(WebClient.class);
given(webClient.get()).willReturn(spec);
WebClient.ResponseSpec responseSpec = mock(WebClient.ResponseSpec.class);
given(responseSpec.bodyToMono(String.class)).willReturn(Mono.just(this.jwkSet));
given(responseSpec.bodyToMono(any(ParameterizedTypeReference.class)))
.willReturn(Mono.just(Map.of("issuer", issuer, "jwks_uri", issuer + "/jwks")));
given(spec.retrieve()).willReturn(responseSpec);
ReactiveJwtDecoder jwtDecoder = NimbusReactiveJwtDecoder.withIssuerLocation(issuer)
.webClient(webClient)
.build();
Jwt jwt = jwtDecoder.decode(this.messageReadToken).block();
assertThat(jwt.hasClaim(JwtClaimNames.EXP)).isNotNull();
assertThatExceptionOfType(JwtValidationException.class)
.isThrownBy(() -> jwtDecoder.decode(this.messageReadToken).block());
}
@Test