| /* |
| * 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.vfs2.provider.sftp; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| |
| import org.apache.commons.vfs2.Capability; |
| import org.apache.commons.vfs2.FileName; |
| import org.apache.commons.vfs2.FileSystem; |
| import org.apache.commons.vfs2.FileSystemConfigBuilder; |
| import org.apache.commons.vfs2.FileSystemException; |
| import org.apache.commons.vfs2.FileSystemOptions; |
| import org.apache.commons.vfs2.UserAuthenticationData; |
| import org.apache.commons.vfs2.provider.AbstractOriginatingFileProvider; |
| import org.apache.commons.vfs2.provider.GenericFileName; |
| import org.apache.commons.vfs2.util.UserAuthenticatorUtils; |
| |
| import com.jcraft.jsch.Session; |
| |
| /** |
| * A provider for accessing files over SFTP. |
| */ |
| public class SftpFileProvider extends AbstractOriginatingFileProvider { |
| |
| /** User Information. */ |
| public static final String ATTR_USER_INFO = "UI"; |
| |
| /** Authentication types. */ |
| public static final UserAuthenticationData.Type[] AUTHENTICATOR_TYPES = new UserAuthenticationData.Type[] { |
| UserAuthenticationData.USERNAME, UserAuthenticationData.PASSWORD }; |
| |
| /** The provider's capabilities. */ |
| protected static final Collection<Capability> capabilities = Collections.unmodifiableCollection(Arrays.asList(Capability.CREATE, Capability.DELETE, Capability.RENAME, Capability.GET_TYPE, |
| Capability.LIST_CHILDREN, Capability.READ_CONTENT, Capability.URI, Capability.WRITE_CONTENT, |
| Capability.GET_LAST_MODIFIED, Capability.SET_LAST_MODIFIED_FILE, Capability.RANDOM_ACCESS_READ, |
| Capability.APPEND_CONTENT)); |
| |
| /** |
| * Creates a new Session. |
| * |
| * @return A Session, never null. |
| */ |
| static Session createSession(final GenericFileName rootName, final FileSystemOptions fileSystemOptions) |
| throws FileSystemException { |
| UserAuthenticationData authData = null; |
| try { |
| authData = UserAuthenticatorUtils.authenticate(fileSystemOptions, AUTHENTICATOR_TYPES); |
| |
| return SftpClientFactory.createConnection(rootName.getHostName(), rootName.getPort(), |
| UserAuthenticatorUtils.getData(authData, UserAuthenticationData.USERNAME, |
| UserAuthenticatorUtils.toChar(rootName.getUserName())), |
| UserAuthenticatorUtils.getData(authData, UserAuthenticationData.PASSWORD, |
| UserAuthenticatorUtils.toChar(rootName.getPassword())), |
| fileSystemOptions); |
| } catch (final Exception e) { |
| throw new FileSystemException("vfs.provider.sftp/connect.error", rootName, e); |
| } finally { |
| UserAuthenticatorUtils.cleanup(authData); |
| } |
| } |
| |
| /** |
| * Constructs a new provider. |
| */ |
| public SftpFileProvider() { |
| setFileNameParser(SftpFileNameParser.getInstance()); |
| } |
| |
| /** |
| * Creates a {@link FileSystem}. |
| */ |
| @Override |
| protected FileSystem doCreateFileSystem(final FileName name, final FileSystemOptions fileSystemOptions) |
| throws FileSystemException { |
| // Create the file system |
| return new SftpFileSystem((GenericFileName) name, createSession((GenericFileName) name, fileSystemOptions), |
| fileSystemOptions); |
| } |
| |
| @Override |
| public FileSystemConfigBuilder getConfigBuilder() { |
| return SftpFileSystemConfigBuilder.getInstance(); |
| } |
| |
| @Override |
| public Collection<Capability> getCapabilities() { |
| return capabilities; |
| } |
| } |