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/** |
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$Id $ |
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3 |
|
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Copyright (C) 2008 Nicklas Nordborg |
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5 |
|
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This file is part of the FTP Server extension for BASE. |
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Available at http://baseplugins.thep.lu.se/ |
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BASE main site: http://base.thep.lu.se/ |
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9 |
----------------------------------------------------------- |
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|
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This is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License |
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as published by the Free Software Foundation; either version 3 |
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of the License, or (at your option) any later version. |
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15 |
|
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The software is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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20 |
|
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You should have received a copy of the GNU General Public License |
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along with BASE. If not, see <http://www.gnu.org/licenses/>. |
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|
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*/ |
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package net.sf.basedb.clients.ftp; |
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|
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import java.util.EnumSet; |
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|
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|
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|
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//import org.apache.ftpserver.ConfigurableFtpServerContext; |
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import org.apache.ftpserver.FtpServer; |
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//import org.apache.ftpserver.config.PropertiesConfiguration; |
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//import org.apache.ftpserver.ftplet.Configuration; |
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import org.slf4j.Logger; |
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36 |
import org.slf4j.LoggerFactory; |
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import org.springframework.beans.factory.support.DefaultListableBeanFactory; |
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import org.springframework.beans.factory.xml.XmlBeanDefinitionReader; |
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39 |
import org.springframework.core.io.ClassPathResource; |
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import org.springframework.core.io.DefaultResourceLoader; |
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|
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import net.sf.basedb.core.Application; |
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import net.sf.basedb.core.Client; |
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import net.sf.basedb.core.DbControl; |
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import net.sf.basedb.core.Group; |
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import net.sf.basedb.core.GroupPermissions; |
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import net.sf.basedb.core.Item; |
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import net.sf.basedb.core.ItemKey; |
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import net.sf.basedb.core.ItemNotFoundException; |
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import net.sf.basedb.core.Permission; |
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import net.sf.basedb.core.SessionControl; |
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import net.sf.basedb.core.SystemItems; |
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import net.sf.basedb.core.User; |
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|
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/** |
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The main FTP Server class for BASE. It encapsulates the |
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{@link FtpServer} from Apache, and forces some BASE-specific |
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configuration settings. Eg. |
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59 |
|
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<ul> |
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<li>User manager: {@link BaseUserManager} |
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<li>File system manager: {@link BaseFileSystemFactory} |
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<li>Ftplet: {@link BaseFtplet} |
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<li>Anonymous login is disabled |
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</ul> |
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66 |
|
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This class also has some utility method for checking if the |
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<code>net.sf.basedb.clients.ftp</code> {@link Client} has been |
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registered in BASE. If not, only the root user is allowed to connect, |
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but once the root user does that, the ftp client is automatically |
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registereded and made available to everyone. |
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72 |
|
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@author Nicklas |
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@version 1.0 |
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*/ |
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public class BaseFtpServer |
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{ |
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|
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private static final Logger log = LoggerFactory.getLogger(BaseFtpServer.class); |
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80 |
|
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81 |
/** |
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The {@link Client#getExternalId()} for FTP server. |
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02 Jun 08 |
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83 |
*/ |
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public static final String CLIENT_ID = "net.sf.basedb.clients.ftp"; |
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|
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/** |
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Check if the FTP server has been registered as a client |
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application in BASE. |
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@return TRUE if the FTP server is registered, FALSE otherwise |
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90 |
*/ |
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91 |
public static boolean isRegisteredAsClient() |
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{ |
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boolean installed = false; |
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try |
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{ |
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SessionControl sc = Application.newSessionControl(CLIENT_ID, null, null); |
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sc.close(); |
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installed = true; |
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} |
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catch (ItemNotFoundException ex) |
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{ |
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log.info("FTP Server is not registered as BASE client application", ex); |
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} |
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return installed; |
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} |
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|
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/** |
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Register the FTP server as a client application in BASE. The |
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application will be shared to {@link Group#EVERYONE}. |
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@param sc The session control of a logged in user which must have |
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04 Apr 14 |
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permissions to create a {@link Client} item or permission |
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04 Apr 14 |
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to impersonate a user (eg. root) |
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*/ |
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public static void registerAsClient(SessionControl sc) |
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{ |
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boolean closeSessionControl = false; |
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if (!sc.hasPermission(Permission.CREATE, Item.CLIENT)) |
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{ |
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if (!sc.hasSystemPermission(Permission.ACT_AS_ANOTHER_USER)) |
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{ |
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// We lack the proper permissions to register the ftp client |
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return; |
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} |
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sc = sc.impersonateLogin(SystemItems.getId(User.ROOT), "FTP Server auto-login to register FTP client"); |
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closeSessionControl = true; |
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} |
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|
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Client client = null; |
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DbControl dc = sc.newDbControl(); |
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try |
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{ |
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client = Client.getByExternalId(dc, CLIENT_ID); |
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log.info("FTP Server is already registered as BASE client application"); |
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} |
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catch (ItemNotFoundException ex) |
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{ |
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log.info("Registering FTP Server as BASE client application with ID:" + CLIENT_ID); |
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Group everyone = Group.getById(dc, SystemItems.getId(Group.EVERYONE)); |
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GroupPermissions gp = new GroupPermissions(); |
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gp.setPermissions(everyone, EnumSet.of(Permission.USE)); |
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30 May 08 |
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ItemKey everyoneUse = ItemKey.getNewOrExisting(dc, null, gp); |
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|
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client = Client.getNew(dc, CLIENT_ID); |
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client.setName("FTP Server"); |
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30 May 08 |
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client.setDescription("Enables FTP access to the BASE file system."); |
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client.setItemKey(everyoneUse); |
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dc.saveItem(client); |
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dc.commit(); |
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02 Jun 08 |
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log.info("FTP Server successfully registered as BASE client application"); |
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} |
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finally |
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30 May 08 |
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{ |
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if (dc != null) dc.close(); |
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04 Apr 14 |
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if (closeSessionControl) sc.close(); |
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30 May 08 |
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155 |
} |
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30 May 08 |
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156 |
} |
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|
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158 |
private final String configFile; |
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30 May 08 |
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159 |
private FtpServer server; |
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30 May 08 |
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160 |
|
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02 Jun 08 |
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161 |
/** |
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02 Jun 08 |
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Create a new FTP Server. The configuration properties will be copied and |
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02 Jun 08 |
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BASE-specific settings as described in the class documentation will be |
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02 Jun 08 |
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added. To start the FTP server call {@link #start()}. |
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02 Jun 08 |
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165 |
|
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13 Aug 08 |
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@param config The path to configuration file (classpath based) |
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02 Jun 08 |
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@throws Exception If there is any problem |
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02 Jun 08 |
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168 |
*/ |
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13 Aug 08 |
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169 |
public BaseFtpServer(String configFile) |
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30 May 08 |
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170 |
throws Exception |
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30 May 08 |
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171 |
{ |
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13 Aug 08 |
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172 |
this.configFile = configFile; |
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30 May 08 |
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173 |
} |
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02 Jun 08 |
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174 |
|
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02 Jun 08 |
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175 |
/** |
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02 Jun 08 |
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Checks if the FTP Server is running. |
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02 Jun 08 |
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177 |
*/ |
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30 May 08 |
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178 |
public boolean isRunning() |
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30 May 08 |
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179 |
{ |
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30 May 08 |
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180 |
return server != null && !server.isStopped() && !server.isSuspended(); |
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30 May 08 |
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181 |
} |
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02 Jun 08 |
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182 |
|
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02 Jun 08 |
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183 |
/** |
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02 Jun 08 |
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Starts the FTP server if it is not already running. |
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02 Jun 08 |
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185 |
*/ |
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30 May 08 |
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186 |
public void start() |
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30 May 08 |
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187 |
{ |
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30 May 08 |
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188 |
if (isRunning()) return; |
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02 Jun 08 |
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189 |
log.info("Starting BASE FTP Server"); |
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13 Aug 08 |
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190 |
|
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30 May 08 |
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191 |
try |
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30 May 08 |
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192 |
{ |
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13 Aug 08 |
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193 |
ClassLoader classLoader = FtpServer.class.getClassLoader(); |
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13 Aug 08 |
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194 |
|
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13 Aug 08 |
nicklas |
195 |
DefaultListableBeanFactory factory = new DefaultListableBeanFactory(); |
741 |
13 Aug 08 |
nicklas |
196 |
factory.setBeanClassLoader(classLoader); |
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13 Aug 08 |
nicklas |
197 |
XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(factory); |
741 |
13 Aug 08 |
nicklas |
198 |
reader.setResourceLoader(new DefaultResourceLoader(classLoader)); |
741 |
13 Aug 08 |
nicklas |
199 |
reader.loadBeanDefinitions(new ClassPathResource(configFile, classLoader)); |
741 |
13 Aug 08 |
nicklas |
200 |
server = (FtpServer)factory.getBean("server"); |
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13 Aug 08 |
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201 |
|
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13 Aug 08 |
nicklas |
//System.out.println("Start FTP server: " + server); |
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13 Aug 08 |
nicklas |
//System.out.println("port: " + server.getListener("default").getPort()); |
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13 Aug 08 |
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204 |
|
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30 May 08 |
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205 |
server.start(); |
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30 May 08 |
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206 |
} |
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30 May 08 |
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207 |
catch (Exception ex) |
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30 May 08 |
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208 |
{ |
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05 Jun 08 |
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209 |
server = null; |
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02 Jun 08 |
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210 |
log.error("Could not start FTP Server", ex); |
714 |
30 May 08 |
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211 |
throw new RuntimeException(ex); |
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30 May 08 |
nicklas |
212 |
} |
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02 Jun 08 |
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213 |
log.info("BASE FTP Server has been started"); |
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30 May 08 |
nicklas |
214 |
} |
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30 May 08 |
nicklas |
215 |
|
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02 Jun 08 |
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216 |
/** |
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02 Jun 08 |
nicklas |
Stop the FTP server. |
716 |
02 Jun 08 |
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218 |
*/ |
714 |
30 May 08 |
nicklas |
219 |
public void stop() |
714 |
30 May 08 |
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220 |
{ |
716 |
02 Jun 08 |
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221 |
log.info("Stopping BASE FTP Server"); |
716 |
02 Jun 08 |
nicklas |
222 |
if (server != null) |
716 |
02 Jun 08 |
nicklas |
223 |
{ |
719 |
05 Jun 08 |
nicklas |
224 |
try |
719 |
05 Jun 08 |
nicklas |
225 |
{ |
719 |
05 Jun 08 |
nicklas |
226 |
server.stop(); |
719 |
05 Jun 08 |
nicklas |
227 |
} |
719 |
05 Jun 08 |
nicklas |
228 |
catch (Throwable t) |
719 |
05 Jun 08 |
nicklas |
229 |
{ |
719 |
05 Jun 08 |
nicklas |
230 |
log.warn("Error when stopping FTP Server", t); |
719 |
05 Jun 08 |
nicklas |
231 |
} |
716 |
02 Jun 08 |
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232 |
server = null; |
716 |
02 Jun 08 |
nicklas |
233 |
} |
716 |
02 Jun 08 |
nicklas |
234 |
log.info("BASE FTP Server has been stopped"); |
741 |
13 Aug 08 |
nicklas |
235 |
} |
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30 May 08 |
nicklas |
236 |
} |