/**
    * Copyright 2005-2014 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.rice.ksb.security.admin;
  
  import java.io.IOException;
  import java.security.GeneralSecurityException;
  import java.security.KeyPair;
  import java.security.KeyPairGenerator;
  import java.security.KeyStore;
  import java.security.PrivateKey;
  import java.security.cert.Certificate;
  
  import org.kuali.rice.ksb.security.admin.service.impl.JavaSecurityManagementServiceImpl;
  
  /**
   * This is a mock class used by the KSB test harness to supplant the {@link JavaSecurityManagementServiceImpl} class
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   *
   */
  public class MockJavaSecurityManagementServiceImpl extends JavaSecurityManagementServiceImpl implements MockJavaSecurityManagementService {
      
      private static final String FAKE_KEYSTORE_ALIAS = "test_keystore_alias";
      private static final String FAKE_KEYSTORE_PASSWORD = "test_keystore_pass";
  
      private KeyStore moduleKeyStore;
      private PrivateKey modulePrivateKey;
  
      @Override
      public void afterPropertiesSet() throws Exception {
          // method is empty in order to override operation of JavaSecurityManagementServiceImpl.afterPropertiesSet()
      }
      
      private void setUpService() {
          try {
              KeyPairGenerator keyGen = KeyPairGenerator.getInstance(CLIENT_KEY_GENERATOR_ALGORITHM);
  //            SecureRandom random = SecureRandom.getInstance(CLIENT_SECURE_RANDOM_ALGORITHM);
              keyGen.initialize(CLIENT_KEY_PAIR_KEY_SIZE);
  //            keyGen.initialize(new RSAKeyGenParameterSpec(512,RSAKeyGenParameterSpec.F0));
              KeyPair pair = keyGen.generateKeyPair();
  
              this.modulePrivateKey = pair.getPrivate();
              Certificate cert = generateCertificate(pair, getModuleKeyStoreAlias());
              this.moduleKeyStore = generateKeyStore(cert, pair.getPrivate(), getModuleKeyStoreAlias(), getModuleKeyStorePassword());
          } catch (GeneralSecurityException e) {
              e.printStackTrace();
          } catch (IOException e) {
              e.printStackTrace();
          }
      }
  
      @Override
      public String getModuleKeyStoreLocation() {
          throw new RuntimeException("KeyStoreLocation should not be needed in unit tests");
      }
  
      @Override
      public String getModuleKeyStoreAlias() {
          return FAKE_KEYSTORE_ALIAS;
      }
  
      @Override
      public String getModuleKeyStorePassword() {
          return FAKE_KEYSTORE_PASSWORD;
      }
  
      @Override
      public KeyStore getModuleKeyStore() {
          if (this.moduleKeyStore == null) {
              setUpService();
          }
          return this.moduleKeyStore;
      }
      
      @Override
      public PrivateKey getModulePrivateKey() {
          if (this.modulePrivateKey == null) {
              setUpService();
          }
          return this.modulePrivateKey;
      }
  
  }