Examples with NimbusJwtEncoder org.springframework.security.oauth2.jwt.NimbusJwtEncoder used on opensource projects

Example 1 with NimbusJwtEncoder

use of org.springframework.security.oauth2.jwt.NimbusJwtEncoder in project spring-security by spring-projects.

the class NimbusJwtClientAuthenticationParametersConverter method convert.

@Override
public MultiValueMap<String, String> convert(T authorizationGrantRequest) {
    Assert.notNull(authorizationGrantRequest, "authorizationGrantRequest cannot be null");
    ClientRegistration clientRegistration = authorizationGrantRequest.getClientRegistration();
    if (!ClientAuthenticationMethod.PRIVATE_KEY_JWT.equals(clientRegistration.getClientAuthenticationMethod()) && !ClientAuthenticationMethod.CLIENT_SECRET_JWT.equals(clientRegistration.getClientAuthenticationMethod())) {
        return null;
    }
    JWK jwk = this.jwkResolver.apply(clientRegistration);
    if (jwk == null) {
        OAuth2Error oauth2Error = new OAuth2Error(INVALID_KEY_ERROR_CODE, "Failed to resolve JWK signing key for client registration '" + clientRegistration.getRegistrationId() + "'.", null);
        throw new OAuth2AuthorizationException(oauth2Error);
    }
    JwsAlgorithm jwsAlgorithm = resolveAlgorithm(jwk);
    if (jwsAlgorithm == null) {
        OAuth2Error oauth2Error = new OAuth2Error(INVALID_ALGORITHM_ERROR_CODE, "Unable to resolve JWS (signing) algorithm from JWK associated to client registration '" + clientRegistration.getRegistrationId() + "'.", null);
        throw new OAuth2AuthorizationException(oauth2Error);
    }
    JwsHeader.Builder headersBuilder = JwsHeader.with(jwsAlgorithm);
    Instant issuedAt = Instant.now();
    Instant expiresAt = issuedAt.plus(Duration.ofSeconds(60));
    // @formatter:off
    JwtClaimsSet.Builder claimsBuilder = JwtClaimsSet.builder().issuer(clientRegistration.getClientId()).subject(clientRegistration.getClientId()).audience(Collections.singletonList(clientRegistration.getProviderDetails().getTokenUri())).id(UUID.randomUUID().toString()).issuedAt(issuedAt).expiresAt(expiresAt);
    // @formatter:on
    JwsHeader jwsHeader = headersBuilder.build();
    JwtClaimsSet jwtClaimsSet = claimsBuilder.build();
    JwsEncoderHolder jwsEncoderHolder = this.jwsEncoders.compute(clientRegistration.getRegistrationId(), (clientRegistrationId, currentJwsEncoderHolder) -> {
        if (currentJwsEncoderHolder != null && currentJwsEncoderHolder.getJwk().equals(jwk)) {
            return currentJwsEncoderHolder;
        }
        JWKSource<SecurityContext> jwkSource = new ImmutableJWKSet<>(new JWKSet(jwk));
        return new JwsEncoderHolder(new NimbusJwtEncoder(jwkSource), jwk);
    });
    JwtEncoder jwsEncoder = jwsEncoderHolder.getJwsEncoder();
    Jwt jws = jwsEncoder.encode(JwtEncoderParameters.from(jwsHeader, jwtClaimsSet));
    MultiValueMap<String, String> parameters = new LinkedMultiValueMap<>();
    parameters.set(OAuth2ParameterNames.CLIENT_ASSERTION_TYPE, CLIENT_ASSERTION_TYPE_VALUE);
    parameters.set(OAuth2ParameterNames.CLIENT_ASSERTION, jws.getTokenValue());
    return parameters;
}