/*
    * 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.maven.settings.crypto;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  import javax.inject.Singleton;
  
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.maven.settings.Proxy;
  import org.apache.maven.settings.Server;
  import org.apache.maven.settings.building.DefaultSettingsProblem;
  import org.apache.maven.settings.building.SettingsProblem;
  import org.apache.maven.settings.building.SettingsProblem.Severity;
  import org.codehaus.plexus.components.secdispatcher.SecDispatcher;
  import org.codehaus.plexus.components.secdispatcher.SecDispatcherException;
  
  /**
   * Decrypts passwords in the settings.
   *
   * @deprecated since 4.0.0
   */
  @Named
  @Singleton
  @Deprecated(since = "4.0.0")
  public class DefaultSettingsDecrypter implements SettingsDecrypter {
      private final SecDispatcher securityDispatcher;
  
      @Inject
      public DefaultSettingsDecrypter(MavenSecDispatcher securityDispatcher) {
          this.securityDispatcher = securityDispatcher;
      }
  
      @Override
      public SettingsDecryptionResult decrypt(SettingsDecryptionRequest request) {
          List<SettingsProblem> problems = new ArrayList<>();
  
          List<Server> servers = new ArrayList<>();
  
          for (Server server : request.getServers()) {
              server = server.clone();
  
              String password = server.getPassword();
              if (securityDispatcher.isAnyEncryptedString(password)) {
                  try {
                      if (securityDispatcher.isLegacyEncryptedString(password)) {
                          problems.add(new DefaultSettingsProblem(
                                  "Pre-Maven 4 legacy encrypted password detected for server " + server.getId()
                                          + " - configure password encryption with the help of mvnenc to be compatible with Maven 4.",
                                  Severity.WARNING,
                                  "server: " + server.getId(),
                                  -1,
                                  -1,
                                  null));
                      }
                      server.setPassword(securityDispatcher.decrypt(password));
                  } catch (SecDispatcherException | IOException e) {
                      problems.add(new DefaultSettingsProblem(
                              "Failed to decrypt password for server " + server.getId() + ": " + e.getMessage(),
                              Severity.ERROR,
                              "server: " + server.getId(),
                              -1,
                              -1,
                              e));
                  }
              }
  
              String passphrase = server.getPassphrase();
              if (securityDispatcher.isAnyEncryptedString(passphrase)) {
                  try {
                      if (securityDispatcher.isLegacyEncryptedString(passphrase)) {
                          problems.add(new DefaultSettingsProblem(
                                  "Legacy/insecurely encrypted passphrase detected for server " + server.getId(),
                                  Severity.WARNING,
                                  "server: " + server.getId(),
                                  -1,
                                  -1,
                                  null));
                      }
                      server.setPassphrase(securityDispatcher.decrypt(passphrase));
                 } catch (SecDispatcherException | IOException e) {
                     problems.add(new DefaultSettingsProblem(
                             "Failed to decrypt passphrase for server " + server.getId() + ": " + e.getMessage(),
                             Severity.ERROR,
                             "server: " + server.getId(),
                             -1,
                             -1,
                             e));
                 }
             }
 
             servers.add(server);
         }
 
         List<Proxy> proxies = new ArrayList<>();
 
         for (Proxy proxy : request.getProxies()) {
             String password = proxy.getPassword();
             if (securityDispatcher.isAnyEncryptedString(password)) {
                 try {
                     if (securityDispatcher.isLegacyEncryptedString(password)) {
                         problems.add(new DefaultSettingsProblem(
                                 "Legacy/insecurely encrypted password detected for proxy " + proxy.getId(),
                                 Severity.WARNING,
                                 "proxy: " + proxy.getId(),
                                 -1,
                                 -1,
                                 null));
                     }
                     proxy.setPassword(securityDispatcher.decrypt(password));
                 } catch (SecDispatcherException | IOException e) {
                     problems.add(new DefaultSettingsProblem(
                             "Failed to decrypt password for proxy " + proxy.getId() + ": " + e.getMessage(),
                             Severity.ERROR,
                             "proxy: " + proxy.getId(),
                             -1,
                             -1,
                             e));
                 }
             }
 
             proxies.add(proxy);
         }
 
         return new DefaultSettingsDecryptionResult(servers, proxies, problems);
     }
 }