content: /*
   * 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.camel.quarkus.component.crypto.it;
  
  import java.io.InputStream;
  import java.security.KeyStore;
  import java.security.PrivateKey;
  import java.security.PublicKey;
  import java.security.SecureRandom;
  import java.security.cert.Certificate;
  
  import jakarta.inject.Inject;
  import jakarta.inject.Named;
  import jakarta.ws.rs.Consumes;
  import jakarta.ws.rs.POST;
  import jakarta.ws.rs.Path;
  import jakarta.ws.rs.Produces;
  import jakarta.ws.rs.QueryParam;
  import jakarta.ws.rs.core.MediaType;
  import jakarta.ws.rs.core.Response;
  import org.apache.camel.Exchange;
  import org.apache.camel.Message;
  import org.apache.camel.Processor;
  import org.apache.camel.ProducerTemplate;
  import org.apache.camel.component.crypto.DigitalSignatureConstants;
  
  @Path("/crypto")
  public class CryptoResource {
  
      public static final String MESSAGE = "Hello Camel Quarkus Crypto";
      private static final String ALIAS = "bob";
      private static final String KEYSTORE = "crypto.jks";
      private static final String KEYSTORE_PASSWORD = "letmein";
  
      @Inject
      ProducerTemplate producerTemplate;
  
      @Path("/signature/sign")
      @POST
      public byte[] sign(@QueryParam("raw") boolean raw) {
          final String endpoint = "direct:sign" + (raw ? "-raw" : "");
          Exchange exchange = producerTemplate.request(endpoint, new Processor() {
              @Override
              public void process(Exchange exchange) throws Exception {
                  exchange.getMessage().setBody(MESSAGE);
              }
          });
          Message message = exchange.getMessage();
          return message.getHeader(DigitalSignatureConstants.SIGNATURE, byte[].class);
      }
  
      @Path("/signature/verify")
      @POST
      @Consumes(MediaType.TEXT_PLAIN)
      public Response verify(@QueryParam("raw") boolean raw, String signature) {
          final String endpoint = "direct:verify" + (raw ? "-raw" : "");
          Exchange exchange = producerTemplate.send(endpoint, new Processor() {
              @Override
              public void process(Exchange exchange) throws Exception {
                  Message message = exchange.getMessage();
                  message.setHeader(DigitalSignatureConstants.SIGNATURE, signature);
                  message.setBody(MESSAGE);
              }
          });
  
          if (exchange.isFailed()) {
              // Expected in the signature verification failure scenario
              return Response.serverError().build();
          }
  
          return Response.ok(exchange.getMessage().getHeaders().size() == 0).build();
      }
  
      @Path("/encrypt")
      @POST
      public byte[] encryptPayload(String payload) {
          return producerTemplate.requestBody("direct:marshal", payload, byte[].class);
      }
  
      @Path("/decrypt")
      @POST
      @Produces(MediaType.TEXT_PLAIN)
      public String decryptPgpPayload(byte[] payload) {
          return producerTemplate.requestBody("direct:unmarshal", payload, String.class);
      }
  
      @jakarta.enterprise.inject.Produces
      public KeyStore keyStore() throws Exception {
          KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
          try (InputStream in = getClass().getResourceAsStream("/" + KEYSTORE)) {
              keystore.load(in, KEYSTORE_PASSWORD.toCharArray());
          }
          return keystore;
      }
  
      @jakarta.enterprise.inject.Produces
      @Named
      public PrivateKey myPrivateKey(KeyStore keyStore) throws Exception {
          return (PrivateKey) keyStore.getKey(ALIAS, KEYSTORE_PASSWORD.toCharArray());
      }
  
      @jakarta.enterprise.inject.Produces
      @Named
      public PublicKey myPublicKey(KeyStore keyStore) throws Exception {
          Certificate cert = keyStore.getCertificate(ALIAS);
          return cert.getPublicKey();
      }
  
      @jakarta.enterprise.inject.Produces
      @Named
      public SecureRandom customSecureRandom() {
          return new SecureRandom();
      }
  }
  