| /* FTPURLConnection.java -- |
| Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.java.net.protocol.ftp; |
| |
| import gnu.classpath.SystemProperties; |
| import gnu.java.net.GetLocalHostAction; |
| |
| import java.io.FilterInputStream; |
| import java.io.FilterOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.InetAddress; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import java.security.AccessController; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * An FTP URL connection. |
| * |
| * @author Chris Burdess (dog@gnu.org) |
| */ |
| public class FTPURLConnection |
| extends URLConnection |
| { |
| |
| /** |
| * The connection managing the protocol exchange. |
| */ |
| protected FTPConnection connection; |
| |
| protected boolean passive; |
| protected int representationType; |
| protected int fileStructure; |
| protected int transferMode; |
| |
| /** |
| * Constructs an FTP connection to the specified URL. |
| * @param url the URL |
| */ |
| public FTPURLConnection(URL url) |
| { |
| super(url); |
| passive = true; |
| representationType = FTPConnection.TYPE_BINARY; |
| fileStructure = -1; |
| transferMode = -1; |
| } |
| |
| /** |
| * Establishes the connection. |
| */ |
| public void connect() |
| throws IOException |
| { |
| if (connected) |
| { |
| return; |
| } |
| String host = url.getHost(); |
| int port = url.getPort(); |
| String username = url.getUserInfo(); |
| String password = null; |
| if (username != null) |
| { |
| int ci = username.indexOf(':'); |
| if (ci != -1) |
| { |
| password = username.substring(ci + 1); |
| username = username.substring(0, ci); |
| } |
| } |
| else |
| { |
| username = "anonymous"; |
| GetLocalHostAction a = new GetLocalHostAction(); |
| InetAddress localhost =(InetAddress) AccessController.doPrivileged(a); |
| password = SystemProperties.getProperty("user.name") + "@" + |
| ((localhost == null) ? "localhost" : localhost.getHostName()); |
| } |
| connection = new FTPConnection(host, port); |
| if (!connection.authenticate(username, password)) |
| { |
| throw new SecurityException("Authentication failed"); |
| } |
| connection.setPassive(passive); |
| if (representationType != -1) |
| { |
| connection.setRepresentationType(representationType); |
| } |
| if (fileStructure != -1) |
| { |
| connection.setFileStructure(fileStructure); |
| } |
| if (transferMode != -1) |
| { |
| connection.setTransferMode(transferMode); |
| } |
| } |
| |
| /** |
| * This connection supports doInput. |
| */ |
| public void setDoInput(boolean doinput) |
| { |
| doInput = doinput; |
| } |
| |
| /** |
| * This connection supports doOutput. |
| */ |
| public void setDoOutput(boolean dooutput) |
| { |
| doOutput = dooutput; |
| } |
| |
| /** |
| * Returns an input stream that reads from this open connection. |
| */ |
| public InputStream getInputStream() |
| throws IOException |
| { |
| if (!connected) |
| { |
| connect(); |
| } |
| String path = url.getPath(); |
| if (connection.changeWorkingDirectory(path)) |
| { |
| return this.new ClosingInputStream(connection.list(null)); |
| } |
| else |
| { |
| return this.new ClosingInputStream(connection.retrieve(path)); |
| } |
| } |
| |
| /** |
| * Returns an output stream that writes to this connection. |
| */ |
| public OutputStream getOutputStream() |
| throws IOException |
| { |
| if (!connected) |
| { |
| connect(); |
| } |
| String path = url.getPath(); |
| return this.new ClosingOutputStream(connection.store(path)); |
| } |
| |
| public String getRequestProperty(String key) |
| { |
| if ("passive".equals(key)) |
| { |
| return Boolean.toString(passive); |
| } |
| else if ("representationType".equals(key)) |
| { |
| switch (representationType) |
| { |
| case FTPConnection.TYPE_ASCII: |
| return "ASCII"; |
| case FTPConnection.TYPE_EBCDIC: |
| return "EBCDIC"; |
| case FTPConnection.TYPE_BINARY: |
| return "BINARY"; |
| } |
| } |
| else if ("fileStructure".equals(key)) |
| { |
| switch (fileStructure) |
| { |
| case FTPConnection.STRUCTURE_FILE: |
| return "FILE"; |
| case FTPConnection.STRUCTURE_RECORD: |
| return "RECORD"; |
| case FTPConnection.STRUCTURE_PAGE: |
| return "PAGE"; |
| } |
| } |
| else if ("transferMode".equals(key)) |
| { |
| switch (transferMode) |
| { |
| case FTPConnection.MODE_STREAM: |
| return "STREAM"; |
| case FTPConnection.MODE_BLOCK: |
| return "BLOCK"; |
| case FTPConnection.MODE_COMPRESSED: |
| return "COMPRESSED"; |
| } |
| } |
| return null; |
| } |
| |
| public Map getRequestProperties() |
| { |
| Map map = new HashMap(); |
| addRequestPropertyValue(map, "passive"); |
| addRequestPropertyValue(map, "representationType"); |
| addRequestPropertyValue(map, "fileStructure"); |
| addRequestPropertyValue(map, "transferMode"); |
| return map; |
| } |
| |
| private void addRequestPropertyValue(Map map, String key) |
| { |
| String value = getRequestProperty(key); |
| map.put(key, value); |
| } |
| |
| public void setRequestProperty(String key, String value) |
| { |
| if (connected) |
| { |
| throw new IllegalStateException(); |
| } |
| if ("passive".equals(key)) |
| { |
| passive = Boolean.valueOf(value).booleanValue(); |
| } |
| else if ("representationType".equals(key)) |
| { |
| if ("A".equalsIgnoreCase(value) || |
| "ASCII".equalsIgnoreCase(value)) |
| { |
| representationType = FTPConnection.TYPE_ASCII; |
| } |
| else if ("E".equalsIgnoreCase(value) || |
| "EBCDIC".equalsIgnoreCase(value)) |
| { |
| representationType = FTPConnection.TYPE_EBCDIC; |
| } |
| else if ("I".equalsIgnoreCase(value) || |
| "BINARY".equalsIgnoreCase(value)) |
| { |
| representationType = FTPConnection.TYPE_BINARY; |
| } |
| else |
| { |
| throw new IllegalArgumentException(value); |
| } |
| } |
| else if ("fileStructure".equals(key)) |
| { |
| if ("F".equalsIgnoreCase(value) || |
| "FILE".equalsIgnoreCase(value)) |
| { |
| fileStructure = FTPConnection.STRUCTURE_FILE; |
| } |
| else if ("R".equalsIgnoreCase(value) || |
| "RECORD".equalsIgnoreCase(value)) |
| { |
| fileStructure = FTPConnection.STRUCTURE_RECORD; |
| } |
| else if ("P".equalsIgnoreCase(value) || |
| "PAGE".equalsIgnoreCase(value)) |
| { |
| fileStructure = FTPConnection.STRUCTURE_PAGE; |
| } |
| else |
| { |
| throw new IllegalArgumentException(value); |
| } |
| } |
| else if ("transferMode".equals(key)) |
| { |
| if ("S".equalsIgnoreCase(value) || |
| "STREAM".equalsIgnoreCase(value)) |
| { |
| transferMode = FTPConnection.MODE_STREAM; |
| } |
| else if ("B".equalsIgnoreCase(value) || |
| "BLOCK".equalsIgnoreCase(value)) |
| { |
| transferMode = FTPConnection.MODE_BLOCK; |
| } |
| else if ("C".equalsIgnoreCase(value) || |
| "COMPRESSED".equalsIgnoreCase(value)) |
| { |
| transferMode = FTPConnection.MODE_COMPRESSED; |
| } |
| else |
| { |
| throw new IllegalArgumentException(value); |
| } |
| } |
| } |
| |
| public void addRequestProperty(String key, String value) |
| { |
| setRequestProperty(key, value); |
| } |
| |
| class ClosingInputStream |
| extends FilterInputStream |
| { |
| |
| ClosingInputStream(InputStream in) |
| { |
| super(in); |
| } |
| |
| public void close() |
| throws IOException |
| { |
| super.close(); |
| connection.logout(); |
| } |
| |
| } |
| |
| class ClosingOutputStream |
| extends FilterOutputStream |
| { |
| |
| ClosingOutputStream(OutputStream out) |
| { |
| super(out); |
| } |
| |
| public void close() |
| throws IOException |
| { |
| super.close(); |
| connection.logout(); |
| } |
| |
| } |
| |
| } |
| |