001package org.apache.maven.wagon.providers.http; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022import org.apache.http.HttpException; 023import org.apache.http.HttpResponse; 024import org.apache.http.HttpStatus; 025import org.apache.http.client.methods.HttpGet; 026import org.apache.maven.wagon.ResourceDoesNotExistException; 027import org.apache.maven.wagon.TransferFailedException; 028import org.apache.maven.wagon.authorization.AuthorizationException; 029import org.apache.maven.wagon.shared.http4.AbstractHttpClientWagon; 030import org.apache.maven.wagon.shared.http4.HtmlFileListParser; 031 032import java.io.IOException; 033import java.io.InputStream; 034import java.util.List; 035 036/** 037 * @author <a href="michal.maczka@dimatics.com">Michal Maczka</a> 038 * 039 */ 040public class HttpWagon 041 extends AbstractHttpClientWagon 042{ 043 public List<String> getFileList( String destinationDirectory ) 044 throws TransferFailedException, ResourceDoesNotExistException, AuthorizationException 045 { 046 if ( destinationDirectory.length() > 0 && !destinationDirectory.endsWith( "/" ) ) 047 { 048 destinationDirectory += "/"; 049 } 050 051 String url = getRepository().getUrl() + "/" + destinationDirectory; 052 053 HttpGet getMethod = new HttpGet( url ); 054 055 try 056 { 057 058 HttpResponse response = execute( getMethod ); 059 int statusCode = response.getStatusLine().getStatusCode(); 060 061 fireTransferDebug( url + " - Status code: " + statusCode ); 062 063 // TODO [BP]: according to httpclient docs, really should swallow the output on error. verify if that is required 064 switch ( statusCode ) 065 { 066 case HttpStatus.SC_OK: 067 break; 068 069 case SC_NULL: 070 throw new TransferFailedException( "Failed to transfer file: " ); 071 072 case HttpStatus.SC_FORBIDDEN: 073 throw new AuthorizationException( "Access denied to: " + url ); 074 075 case HttpStatus.SC_UNAUTHORIZED: 076 throw new AuthorizationException( "Not authorized." ); 077 078 case HttpStatus.SC_PROXY_AUTHENTICATION_REQUIRED: 079 throw new AuthorizationException( "Not authorized by proxy." ); 080 081 case HttpStatus.SC_NOT_FOUND: 082 throw new ResourceDoesNotExistException( "File: " + url + " does not exist" ); 083 084 //add more entries here 085 default: 086 throw new TransferFailedException( 087 "Failed to transfer file: " + url + ". Return code is: " + statusCode ); 088 } 089 090 InputStream is = response.getEntity().getContent(); 091 092 return HtmlFileListParser.parseFileList( url, is ); 093 } 094 catch ( IOException e ) 095 { 096 throw new TransferFailedException( "Could not read response body.", e ); 097 } 098 catch ( HttpException e ) 099 { 100 throw new TransferFailedException( "Could not read response body.", e ); 101 } 102 finally 103 { 104 getMethod.abort(); 105 } 106 } 107}