moresandeep commented on a change in pull request #429: URL: https://github.com/apache/knox/pull/429#discussion_r608166254
########## File path: gateway-service-knoxtoken/src/main/java/org/apache/knox/gateway/service/knoxtoken/JWKSResource.java ########## @@ -0,0 +1,108 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.knox.gateway.service.knoxtoken; + +import com.nimbusds.jose.JOSEException; +import com.nimbusds.jose.JWSAlgorithm; +import com.nimbusds.jose.jwk.JWKSet; +import com.nimbusds.jose.jwk.KeyUse; +import com.nimbusds.jose.jwk.RSAKey; +import org.apache.knox.gateway.config.GatewayConfig; +import org.apache.knox.gateway.services.GatewayServices; +import org.apache.knox.gateway.services.ServiceType; +import org.apache.knox.gateway.services.security.KeystoreService; +import org.apache.knox.gateway.services.security.KeystoreServiceException; + +import javax.annotation.PostConstruct; +import javax.inject.Singleton; +import javax.servlet.ServletContext; +import javax.servlet.http.HttpServletRequest; +import javax.ws.rs.GET; +import javax.ws.rs.Path; +import javax.ws.rs.Produces; +import javax.ws.rs.QueryParam; +import javax.ws.rs.core.Context; +import javax.ws.rs.core.Response; +import java.security.KeyStoreException; +import java.security.interfaces.RSAPublicKey; + +import static javax.ws.rs.core.MediaType.APPLICATION_JSON; + +@Singleton +@Path(JWKSResource.RESOURCE_PATH) +public class JWKSResource { + + static final String RESOURCE_PATH = "knoxtoken/api/v1/.well-known"; + static final String JWKS_PATH = "/jwks.json"; + @Context + HttpServletRequest request; + @Context + ServletContext context; + private KeystoreService keystoreService; + + @PostConstruct + public void init() { + final GatewayServices services = (GatewayServices) context + .getAttribute(GatewayServices.GATEWAY_SERVICES_ATTRIBUTE); + keystoreService = services.getService(ServiceType.KEYSTORE_SERVICE); + } + + @GET + @Path(JWKS_PATH) + @Produces({ APPLICATION_JSON }) + public Response getJwksResponse() { + return getJwks(null); + } + + private Response getJwks(final String keystore) { + JWKSet jwks; + try { + final RSAPublicKey rsa = getPublicKey(keystore); + final RSAKey.Builder builder = new RSAKey.Builder(rsa) + .keyUse(KeyUse.SIGNATURE) + .algorithm(new JWSAlgorithm(rsa.getAlgorithm())) + .keyIDFromThumbprint(); + + jwks = new JWKSet(builder.build()); + + } catch (KeyStoreException | JOSEException e) { + return Response.status(500) + .entity("{\n \"error\": \"" + e.toString() + "\"\n}\n").build(); + } catch (KeystoreServiceException e) { + return Response.status(500).entity( + "{\n \"error\": \"" + "keystore " + keystore + " could not be found." + + "\"\n}\n").build(); + } + return Response.ok() + .entity(jwks.toJSONObject().toString()).build(); + } + + protected RSAPublicKey getPublicKey(final String keystore) + throws KeystoreServiceException, KeyStoreException { + return (RSAPublicKey) keystoreService.getSigningKeystore(keystore) + .getCertificate(getSigningKeyAlias()).getPublicKey(); + } + + private String getSigningKeyAlias() { + final GatewayConfig config = (GatewayConfig) request.getServletContext() + .getAttribute(GatewayConfig.GATEWAY_CONFIG_ATTRIBUTE); + final String alias = config.getSigningKeyAlias(); Review comment: Ack -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
