| /* |
| * 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. |
| */ |
| package org.apache.commons.vfs.provider.ftps; |
| |
| |
| import org.apache.commons.net.ftp.FTPSClient; |
| import org.apache.commons.net.ftp.FTPFile; |
| import org.apache.commons.vfs.FileSystemException; |
| import org.apache.commons.vfs.FileSystemOptions; |
| import org.apache.commons.vfs.UserAuthenticationData; |
| import org.apache.commons.vfs.util.UserAuthenticatorUtils; |
| import org.apache.commons.vfs.provider.GenericFileName; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| import org.apache.commons.vfs.provider.ftp.FtpClient; |
| |
| |
| /** |
| * A wrapper to the FTPClient to allow automatic reconnect on connection loss.<br /> |
| * I decided to not to use eg. noop() to determine the state of the connection to avoid unnecesary server round-trips. |
| */ |
| class FtpsClientWrapper implements FtpClient |
| { |
| private final GenericFileName root; |
| private final FileSystemOptions fileSystemOptions; |
| |
| private FTPSClient ftpClient = null; |
| |
| FtpsClientWrapper(final GenericFileName root, final FileSystemOptions fileSystemOptions) throws FileSystemException |
| { |
| this.root = root; |
| this.fileSystemOptions = fileSystemOptions; |
| getFtpsClient(); // fail-fast |
| } |
| |
| public GenericFileName getRoot() |
| { |
| return root; |
| } |
| |
| public FileSystemOptions getFileSystemOptions() |
| { |
| return fileSystemOptions; |
| } |
| |
| private FTPSClient createClient() throws FileSystemException |
| { |
| final GenericFileName rootName = getRoot(); |
| |
| UserAuthenticationData authData = null; |
| try |
| { |
| authData = UserAuthenticatorUtils.authenticate(fileSystemOptions, FtpsFileProvider.AUTHENTICATOR_TYPES); |
| |
| return FtpsClientFactory.createConnection(rootName.getHostName(), |
| rootName.getPort(), |
| UserAuthenticatorUtils.getData(authData, UserAuthenticationData.USERNAME, UserAuthenticatorUtils.toChar(rootName.getUserName())), |
| UserAuthenticatorUtils.getData(authData, UserAuthenticationData.PASSWORD, UserAuthenticatorUtils.toChar(rootName.getPassword())), |
| rootName.getPath(), |
| getFileSystemOptions()); |
| } |
| finally |
| { |
| UserAuthenticatorUtils.cleanup(authData); |
| } |
| } |
| |
| private FTPSClient getFtpsClient() throws FileSystemException |
| { |
| if (ftpClient == null) |
| { |
| ftpClient = createClient(); |
| } |
| |
| return ftpClient; |
| } |
| |
| public boolean isConnected() throws FileSystemException |
| { |
| return getFtpsClient().isConnected(); |
| } |
| |
| public void disconnect() throws IOException |
| { |
| try |
| { |
| getFtpsClient().disconnect(); |
| } |
| finally |
| { |
| ftpClient = null; |
| } |
| } |
| |
| public FTPFile[] listFiles(String relPath) throws IOException |
| { |
| try |
| { |
| return getFtpsClient().listFiles(relPath); |
| } |
| catch (IOException e) |
| { |
| disconnect(); |
| return getFtpsClient().listFiles(relPath); |
| } |
| } |
| |
| public boolean removeDirectory(String relPath) throws IOException |
| { |
| try |
| { |
| return getFtpsClient().removeDirectory(relPath); |
| } |
| catch (IOException e) |
| { |
| disconnect(); |
| return getFtpsClient().removeDirectory(relPath); |
| } |
| } |
| |
| public boolean deleteFile(String relPath) throws IOException |
| { |
| try |
| { |
| return getFtpsClient().deleteFile(relPath); |
| } |
| catch (IOException e) |
| { |
| disconnect(); |
| return getFtpsClient().deleteFile(relPath); |
| } |
| } |
| |
| public boolean rename(String oldName, String newName) throws IOException |
| { |
| try |
| { |
| return getFtpsClient().rename(oldName, newName); |
| } |
| catch (IOException e) |
| { |
| disconnect(); |
| return getFtpsClient().rename(oldName, newName); |
| } |
| } |
| |
| public boolean makeDirectory(String relPath) throws IOException |
| { |
| try |
| { |
| return getFtpsClient().makeDirectory(relPath); |
| } |
| catch (IOException e) |
| { |
| disconnect(); |
| return getFtpsClient().makeDirectory(relPath); |
| } |
| } |
| |
| public boolean completePendingCommand() throws IOException |
| { |
| if (ftpClient != null) |
| { |
| return getFtpsClient().completePendingCommand(); |
| } |
| |
| return true; |
| } |
| |
| public InputStream retrieveFileStream(String relPath) throws IOException |
| { |
| try |
| { |
| return getFtpsClient().retrieveFileStream(relPath); |
| } |
| catch (IOException e) |
| { |
| disconnect(); |
| return getFtpsClient().retrieveFileStream(relPath); |
| } |
| } |
| |
| public InputStream retrieveFileStream(String relPath, long restartOffset) throws IOException |
| { |
| try |
| { |
| FTPSClient client = getFtpsClient(); |
| client.setRestartOffset(restartOffset); |
| return client.retrieveFileStream(relPath); |
| } |
| catch (IOException e) |
| { |
| disconnect(); |
| |
| FTPSClient client = getFtpsClient(); |
| client.setRestartOffset(restartOffset); |
| return client.retrieveFileStream(relPath); |
| } |
| } |
| |
| public OutputStream appendFileStream(String relPath) throws IOException |
| { |
| try |
| { |
| return getFtpsClient().appendFileStream(relPath); |
| } |
| catch (IOException e) |
| { |
| disconnect(); |
| return getFtpsClient().appendFileStream(relPath); |
| } |
| } |
| |
| public OutputStream storeFileStream(String relPath) throws IOException |
| { |
| try |
| { |
| return getFtpsClient().storeFileStream(relPath); |
| } |
| catch (IOException e) |
| { |
| disconnect(); |
| return getFtpsClient().storeFileStream(relPath); |
| } |
| } |
| |
| public boolean abort() throws IOException |
| { |
| try |
| { |
| // imario@apache.org: 2005-02-14 |
| // it should be better to really "abort" the transfer, but |
| // currently I didnt manage to make it work - so lets "abort" the hard way. |
| // return getFtpsClient().abort(); |
| |
| disconnect(); |
| return true; |
| } |
| catch (IOException e) |
| { |
| disconnect(); |
| } |
| return true; |
| } |
| |
| public String getReplyString() throws IOException |
| { |
| return getFtpsClient().getReplyString(); |
| } |
| } |