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.component.scp;
  
  import java.net.URI;
  import java.util.Map;
  
  import com.jcraft.jsch.JSch;
  import org.apache.camel.CamelContext;
  import org.apache.camel.component.file.GenericFileEndpoint;
  import org.apache.camel.component.file.remote.RemoteFileComponent;
  import org.apache.camel.spi.Metadata;
  import org.apache.camel.spi.annotations.Component;
  import org.apache.camel.util.StringHelper;
  
  /**
   * Component providing secure messaging using JSch
   */
  @Component("scp")
  public class ScpComponent extends RemoteFileComponent<ScpFile> {
  
      @Metadata
      private boolean verboseLogging;
  
      public ScpComponent() {
      }
  
      public ScpComponent(CamelContext context) {
          super(context);
      }
  
      @Override
      protected GenericFileEndpoint<ScpFile> buildFileEndpoint(String uri, String remaining, Map<String, Object> parameters)
              throws Exception {
          String tmp = StringHelper.before(uri, "?", uri);
          return new ScpEndpoint(uri, this, new ScpConfiguration(new URI(tmp)));
      }
  
      @Override
      protected void afterPropertiesSet(GenericFileEndpoint<ScpFile> endpoint) throws Exception {
          // noop
      }
  
      @Override
      protected void doInit() throws Exception {
          super.doInit();
          initJsch();
      }
  
      public boolean isVerboseLogging() {
          return verboseLogging;
      }
  
      /**
       * JSCH is verbose logging out of the box. Therefore we turn the logging down to DEBUG logging by default. But
       * setting this option to <tt>true</tt> turns on the verbose logging again.
       */
      public void setVerboseLogging(boolean verboseLogging) {
          this.verboseLogging = verboseLogging;
      }
  
      protected void initJsch() {
          JSch.setConfig("StrictHostKeyChecking", "yes");
          JSch.setLogger(new com.jcraft.jsch.Logger() {
              @Override
              public boolean isEnabled(int level) {
                  return level == FATAL || level == ERROR ? ScpComponent.this.log.isErrorEnabled()
                          : level == WARN ? ScpComponent.this.log.isWarnEnabled()
                          : level == INFO ? ScpComponent.this.log.isInfoEnabled() : ScpComponent.this.log.isDebugEnabled();
              }
  
              @Override
              public void log(int level, String message) {
                  if (level == FATAL || level == ERROR) {
                      ScpComponent.this.log.error("[JSCH] {}", message);
                  } else if (level == WARN) {
                      ScpComponent.this.log.warn("[JSCH] {}", message);
                  } else if (level == INFO) {
                      // JSCH is verbose at INFO logging so allow to turn the noise down and log at DEBUG by default
                      if (isVerboseLogging()) {
                          ScpComponent.this.log.info("[JSCH] {}", message);
                      } else {
                          ScpComponent.this.log.debug("[JSCH] {}", message);
                      }
                  } else {
                      ScpComponent.this.log.debug("[JSCH] {}", message);
                  }
              }
          });
      }
  
  }
  