package org.apache.maven.wagon.providers.ssh.jsch.interactive;

 /*

  * 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.

  */

 import com.jcraft.jsch.UIKeyboardInteractive;

 import org.codehaus.plexus.components.interactivity.Prompter;

 import org.codehaus.plexus.components.interactivity.PrompterException;

 /**

  * UIKeyboardInteractive that use plexus-prompter.

  * 

  * <code>UIKeyboardInteractive</code> are usefull when you don't use user with

  * password authentication with a server that use keyboard-interactive and

  * doesn't allow password method <code>PasswordAuthentication no</code>.

  *

  * @author <a href="mailto:juam at users.sourceforge.net">Juan F. Codagnone</a>

  * @since Sep 22, 2005

  * 

  * @plexus.component role="com.jcraft.jsch.UIKeyboardInteractive" 

  */

 public class PrompterUIKeyboardInteractive

     implements UIKeyboardInteractive

 {

     /**

      * @plexus.requirement role-hint="default"

      */

     private Prompter prompter;

     public PrompterUIKeyboardInteractive()

     {

     }

     public PrompterUIKeyboardInteractive( Prompter promper )

     {

         this.prompter = promper;

     }

     /**

      * @see UIKeyboardInteractive#promptKeyboardInteractive(String,String,

      *String,String[],boolean[])

      */

     public String[] promptKeyboardInteractive( String destination, String name, String instruction, String[] prompt,

                                                boolean[] echo )

     {

         if ( prompt.length != echo.length )

         {

             // jcsh is buggy?

             throw new IllegalArgumentException( "prompt and echo size arrays are different!" );

         }

         String[] ret = new String[prompt.length];

         try

         {

             for ( int i = 0; i < ret.length; i++ )

             {

                 if ( echo[i] )

                 {

                     ret[i] = prompter.prompt( prompt[i] );

                 }

                 else

                 {

                     ret[i] = prompter.promptForPassword( prompt[i] );

                 }

             }

         }

         catch ( PrompterException e )

         {

             // TODO: log

             // the user canceled?

             ret = null;

         }

         return ret;

     }

 }