diff options
Diffstat (limited to 'libjava/gnu/java/net/protocol/ftp/FTPURLConnection.java')
-rw-r--r-- | libjava/gnu/java/net/protocol/ftp/FTPURLConnection.java | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/libjava/gnu/java/net/protocol/ftp/FTPURLConnection.java b/libjava/gnu/java/net/protocol/ftp/FTPURLConnection.java new file mode 100644 index 00000000000..368c035c339 --- /dev/null +++ b/libjava/gnu/java/net/protocol/ftp/FTPURLConnection.java @@ -0,0 +1,398 @@ +/* FTPURLConnection.java -- + Copyright (C) 2003, 2004 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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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.java.net.GetLocalHostAction; +import gnu.java.security.action.GetPropertyAction; + +import java.io.FileNotFoundException; +import java.io.FilterInputStream; +import java.io.FilterOutputStream; +import java.io.InputStream; +import java.io.IOException; +import java.io.OutputStream; +import java.net.InetAddress; +import java.net.URL; +import java.net.URLConnection; +import java.security.AccessController; +import java.security.PrivilegedAction; +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"; + PrivilegedAction a = new GetPropertyAction("user.name"); + String systemUsername =(String) AccessController.doPrivileged(a); + a = new GetLocalHostAction(); + InetAddress localhost =(InetAddress) AccessController.doPrivileged(a); + password = systemUsername + "@" + + ((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(); + String filename = null; + int lsi = path.lastIndexOf('/'); + if (lsi != -1) + { + filename = path.substring(lsi + 1); + path = path.substring(0, lsi); + if (!connection.changeWorkingDirectory(path)) + { + throw new FileNotFoundException(path); + } + } + if (filename != null && filename.length() > 0) + { + return this.new ClosingInputStream(connection.retrieve(filename)); + } + else + { + return this.new ClosingInputStream(connection.list(null)); + } + } + + /** + * Returns an output stream that writes to this connection. + */ + public OutputStream getOutputStream() + throws IOException + { + if (!connected) + { + connect(); + } + String dir = url.getPath(); + String filename = url.getFile(); + if (!connection.changeWorkingDirectory(dir)) + { + throw new FileNotFoundException(dir); + } + if (filename != null) + { + return this.new ClosingOutputStream(connection.store(filename)); + } + else + { + throw new FileNotFoundException(filename); + } + } + + 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(); + } + + } + +} + |