/**
    * 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.wss4j.dom.message;
  
  import java.io.InputStream;
  import java.security.KeyStore;
  
  import org.apache.wss4j.common.crypto.Crypto;
  import org.apache.wss4j.common.crypto.CryptoFactory;
  import org.apache.wss4j.common.crypto.Merlin;
  import org.apache.wss4j.common.crypto.MerlinAKI;
  import org.apache.wss4j.common.util.Loader;
  import org.apache.wss4j.common.util.SOAPUtil;
  import org.apache.wss4j.common.util.XMLUtils;
  import org.apache.wss4j.dom.WSConstants;
  
  import org.apache.wss4j.dom.engine.WSSConfig;
  import org.apache.wss4j.dom.engine.WSSecurityEngine;
  import org.apache.wss4j.dom.engine.WSSecurityEngineResult;
  import org.apache.wss4j.dom.handler.WSHandlerResult;
  
  import org.junit.jupiter.api.Test;
  import org.w3c.dom.Document;
  
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  
  /**
   * A set of test-cases for signing and verifying SOAP requests using the Merlin AKI Crypto implementation.
   */
  public class SignatureAKITest {
      private static final org.slf4j.Logger LOG =
          org.slf4j.LoggerFactory.getLogger(SignatureAKITest.class);
  
      private WSSecurityEngine secEngine = new WSSecurityEngine();
  
      public SignatureAKITest() throws Exception {
          WSSConfig.init();
      }
  
      @Test
      public void testSignatureAKI() throws Exception {
          Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG);
          WSSecHeader secHeader = new WSSecHeader(doc);
          secHeader.insertSecurityHeader();
  
          WSSecSignature builder = new WSSecSignature(secHeader);
          builder.setUserInfo("wss40", "security");
          builder.setKeyIdentifierType(WSConstants.BST_DIRECT_REFERENCE);
          Crypto signingCrypto = CryptoFactory.getInstance("wss40.properties");
          Document signedDoc = builder.build(signingCrypto);
  
          if (LOG.isDebugEnabled()) {
              String outputString =
                  XMLUtils.prettyDocumentToString(signedDoc);
              LOG.debug(outputString);
          }
          Crypto caCrypto = CryptoFactory.getInstance("wss40CAAKI.properties");
          WSHandlerResult results = verify(signedDoc, caCrypto);
  
          WSSecurityEngineResult actionResult =
              results.getActionResults().get(WSConstants.SIGN).get(0);
          assertNotNull(actionResult.get(WSSecurityEngineResult.TAG_X509_CERTIFICATE));
          assertNotNull(actionResult.get(WSSecurityEngineResult.TAG_X509_REFERENCE_TYPE));
      }
  
      // Here, the CA keystore contains two keys with the same Distinguished Name
      @Test
      public void testSignatureAKIDuplicate() throws Exception {
          Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG);
          WSSecHeader secHeader = new WSSecHeader(doc);
          secHeader.insertSecurityHeader();
  
          WSSecSignature builder = new WSSecSignature(secHeader);
          builder.setUserInfo("wss40", "security");
          builder.setKeyIdentifierType(WSConstants.BST_DIRECT_REFERENCE);
          Crypto signingCrypto = CryptoFactory.getInstance("wss40.properties");
          Document signedDoc = builder.build(signingCrypto);
  
          if (LOG.isDebugEnabled()) {
              String outputString =
                  XMLUtils.prettyDocumentToString(signedDoc);
             LOG.debug(outputString);
         }
         MerlinAKI caCrypto = new MerlinAKI();
         KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
         ClassLoader loader = Loader.getClassLoader(SignatureAKITest.class);
         InputStream input = Merlin.loadInputStream(loader, "keys/wss40CADupl.jks");
         keyStore.load(input, "security".toCharArray());
         input.close();
         caCrypto.setKeyStore(keyStore);
 
         WSHandlerResult results = verify(signedDoc, caCrypto);
 
         WSSecurityEngineResult actionResult =
             results.getActionResults().get(WSConstants.SIGN).get(0);
         assertNotNull(actionResult.get(WSSecurityEngineResult.TAG_X509_CERTIFICATE));
         assertNotNull(actionResult.get(WSSecurityEngineResult.TAG_X509_REFERENCE_TYPE));
     }
 
     /**
      * Verifies the soap envelope.
      * This method verifies all the signature generated.
      *
      * @param doc soap document
      * @throws Exception Thrown when there is a problem in verification
      */
     private WSHandlerResult verify(Document doc, Crypto crypto) throws Exception {
         return secEngine.processSecurityHeader(doc, null, null, crypto);
     }
 
 }