1adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project/* 2adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one or more 3adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * contributor license agreements. See the NOTICE file distributed with 4adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * this work for additional information regarding copyright ownership. 5adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * The ASF licenses this file to You under the Apache License, Version 2.0 6adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * (the "License"); you may not use this file except in compliance with 7adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the License. You may obtain a copy of the License at 8adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * 9adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 10adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * 11adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Unless required by applicable law or agreed to in writing, software 12adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 13adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * See the License for the specific language governing permissions and 15adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * limitations under the License. 16adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 17adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 185aafac4db69e6d087c512cdfa5c7c0e2f1611681Jesse Wilsonpackage libcore.net.url; 19adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 20adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectimport java.io.IOException; 21adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectimport java.net.Proxy; 22adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectimport java.net.URL; 23adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectimport java.net.URLConnection; 24adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectimport java.net.URLStreamHandler; 25adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 26adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project/** 27adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * This is the handler that is responsible for reading files from the file 28adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * system. 29adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 305aafac4db69e6d087c512cdfa5c7c0e2f1611681Jesse Wilsonpublic class FileHandler extends URLStreamHandler { 31adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 32adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 33adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Returns a connection to the a file pointed by this <code>URL</code> in 34adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the file system 35f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 36adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return A connection to the resource pointed by this url. 37adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param url 38adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * URL The URL to which the connection is pointing to 39f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 40adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 41adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project @Override 42f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson public URLConnection openConnection(URL url) throws IOException { 43f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson return openConnection(url, null); 44adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 45adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 46adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 475501a3d4b3d7657c183ed5446fe67fa011fbf70bElliott Hughes * The behavior of this method is the same as openConnection(URL). 48adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * <code>proxy</code> is not used in FileURLConnection. 49f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 50f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * @param url 51adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the URL which the connection is pointing to 52adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param proxy 53adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Proxy 54adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return a connection to the resource pointed by this url. 55f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 56adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 57adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if this handler fails to establish a connection. 58adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IllegalArgumentException 59f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * if the url argument is null. 60adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws UnsupportedOperationException 61adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the protocol handler doesn't support this method. 62adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 63adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project @Override 64b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes public URLConnection openConnection(URL url, Proxy proxy) throws IOException { 65b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes if (url == null) { 66b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("url == null"); 67adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 68f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson 69f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson String host = url.getHost(); 70b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes if (host == null || host.isEmpty() || host.equalsIgnoreCase("localhost")) { 71f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson return new FileURLConnection(url); 72f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson } 73f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson 74f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson // If a hostname is specified try to get the resource using FTP 75f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes URL ftpURL = new URL("ftp", host, url.getFile()); 76b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes return (proxy == null) ? ftpURL.openConnection() : ftpURL.openConnection(proxy); 77adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 78adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 79adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 80adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Parse the <code>string</code>str into <code>URL</code> u which 81adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * already have the context properties. The string generally have the 82adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * following format: <code><center>/c:/windows/win.ini</center></code>. 83f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 845292410e4ebf7fb5149eefd2f52fcb94c46690a6Jesse Wilson * @param url 85adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * The URL object that's parsed into 865292410e4ebf7fb5149eefd2f52fcb94c46690a6Jesse Wilson * @param spec 87adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * The string equivalent of the specification URL 88adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param start 89adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * The index in the spec string from which to begin parsing 90adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param end 91adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * The index to stop parsing 92f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 93adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @see java.net.URLStreamHandler#toExternalForm(URL) 94adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @see java.net.URL 95adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 96adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project @Override 975292410e4ebf7fb5149eefd2f52fcb94c46690a6Jesse Wilson protected void parseURL(URL url, String spec, int start, int end) { 98adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (end < start) { 99adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return; 100adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 101f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes String parseString = ""; 102adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (start < end) { 1035292410e4ebf7fb5149eefd2f52fcb94c46690a6Jesse Wilson parseString = spec.substring(start, end).replace('\\', '/'); 104adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 1055292410e4ebf7fb5149eefd2f52fcb94c46690a6Jesse Wilson super.parseURL(url, parseString, 0, parseString.length()); 106adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 107adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project} 108