~ubuntu-branches/ubuntu/trusty/wagon2/trusty-proposed

package org.apache.maven.wagon.providers.http;

 

/*

 * 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 org.apache.http.HttpException;

import org.apache.http.HttpResponse;

import org.apache.http.HttpStatus;

import org.apache.http.client.methods.HttpGet;

import org.apache.maven.wagon.ResourceDoesNotExistException;

import org.apache.maven.wagon.TransferFailedException;

import org.apache.maven.wagon.authorization.AuthorizationException;

import org.apache.maven.wagon.shared.http4.AbstractHttpClientWagon;

import org.apache.maven.wagon.shared.http4.HtmlFileListParser;

 

import java.io.IOException;

import java.io.InputStream;

import java.util.List;

 

/**

 * @author <a href="michal.maczka@dimatics.com">Michal Maczka</a>

 * @version $Id: HttpWagon.java 1208429 2011-11-30 13:54:26Z olamy $

 */

public class HttpWagon

    extends AbstractHttpClientWagon

{

    public List<String> getFileList( String destinationDirectory )

        throws TransferFailedException, ResourceDoesNotExistException, AuthorizationException

    {

        if ( destinationDirectory.length() > 0 && !destinationDirectory.endsWith( "/" ) )

        {

            destinationDirectory += "/";

        }

 

        String url = getRepository().getUrl() + "/" + destinationDirectory;

 

        HttpGet getMethod = new HttpGet( url );

 

        try

        {

 

            HttpResponse response = execute( getMethod );

            int statusCode = response.getStatusLine().getStatusCode();

 

            fireTransferDebug( url + " - Status code: " + statusCode );

 

            // TODO [BP]: according to httpclient docs, really should swallow the output on error. verify if that is required

            switch ( statusCode )

            {

                case HttpStatus.SC_OK:

                    break;

 

                case SC_NULL:

                    throw new TransferFailedException( "Failed to transfer file: " );

 

                case HttpStatus.SC_FORBIDDEN:

                    throw new AuthorizationException( "Access denied to: " + url );

 

                case HttpStatus.SC_UNAUTHORIZED:

                    throw new AuthorizationException( "Not authorized." );

 

                case HttpStatus.SC_PROXY_AUTHENTICATION_REQUIRED:

                    throw new AuthorizationException( "Not authorized by proxy." );

 

                case HttpStatus.SC_NOT_FOUND:

                    throw new ResourceDoesNotExistException( "File: " + url + " does not exist" );

 

                    //add more entries here

                default:

                    throw new TransferFailedException(

                        "Failed to transfer file: " + url + ". Return code is: " + statusCode );

            }

 

            InputStream is = response.getEntity().getContent();

 

            return HtmlFileListParser.parseFileList( url, is );

        }

        catch ( IOException e )

        {

            throw new TransferFailedException( "Could not read response body.", e );

        }

        catch ( HttpException e )

        {

            throw new TransferFailedException( "Could not read response body.", e );

        }

        finally

        {

            getMethod.abort();

        }

    }

}