Examples of Ftplet

org.apache.ftpserver.ftplet.Ftplet
Defines methods that all ftplets must implement. A ftplet is a small Java program that runs within a FTP server. Ftplets receive and respond to requests from FTP clients. This interface defines methods to initialize a ftplet, to service requests, and to remove a ftplet from the server. These are known as life-cycle methods and are called in the following sequence:
1. The ftplet is constructed.
2. Then initialized with the init method.
3. All the callback methods will be invoked.
4. The ftplet is taken out of service, then destroyed with the destroy method.
5. Then garbage collected and finalized.
All the callback methods return FtpletEnum. If it returns null FtpletEnum.RET_DEFAULT will be assumed. If any ftplet callback method throws exception, that particular connection will be disconnected.

Examples of org.apache.ftpserver.ftplet.Ftplet

                    return;
                }
            }
            
            // call Ftplet.onUploadStart() method
            Ftplet ftpletContainer = context.getFtpletContainer();
            FtpletEnum ftpletRet;
            try {
                ftpletRet = ftpletContainer.onUploadStart(session.getFtpletSession(), request);
            } catch(Exception e) {
                LOG.debug("Ftplet container threw exception", e);
                ftpletRet = FtpletEnum.RET_DISCONNECT;
            }
            if(ftpletRet == FtpletEnum.RET_SKIP) {
                return;
            }
            else if(ftpletRet == FtpletEnum.RET_DISCONNECT) {
                session.closeOnFlush().awaitUninterruptibly(10000);
                return;
            }
            
            // get filename
            FileObject file = null;
            try {
                file = session.getFileSystemView().getFileObject(fileName);
            }
            catch(Exception ex) {
                LOG.debug("Exception getting file object", ex);
            }
            if(file == null) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "STOR.invalid", fileName));
                return;
            }
            fileName = file.getFullName();
            
            // get permission
            if( !file.hasWritePermission() ) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "STOR.permission", fileName));
                return;
            }
            
            // get data connection
      session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_150_FILE_STATUS_OKAY, "STOR", fileName)).awaitUninterruptibly(10000);
            
            DataConnection dataConnection;
            try {
                dataConnection = session.getDataConnection().openConnection();
            } catch (Exception e) {
                LOG.debug("Exception getting the input data stream", e);
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_425_CANT_OPEN_DATA_CONNECTION, "STOR", fileName));
                return;
            }
            
            // transfer data
            boolean failure = false;
            OutputStream outStream = null;
            try {
                outStream = file.createOutputStream(skipLen);
                long transSz = dataConnection.transferFromClient(outStream);
                
                // log message
                String userName = session.getUser().getName();
                LOG.info("File upload : " + userName + " - " + fileName);
                
                // notify the statistics component
                ServerFtpStatistics ftpStat = (ServerFtpStatistics)context.getFtpStatistics();
                ftpStat.setUpload(session, file, transSz);
            }
            catch(SocketException ex) {
                LOG.debug("Socket exception during data transfer", ex);
                failure = true;
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_426_CONNECTION_CLOSED_TRANSFER_ABORTED, "STOR", fileName));
            }
            catch(IOException ex) {
                LOG.debug("IOException during data transfer", ex);
                failure = true;
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_551_REQUESTED_ACTION_ABORTED_PAGE_TYPE_UNKNOWN, "STOR", fileName));
            }
            finally {
                IoUtils.close(outStream);
            }
            
            // if data transfer ok - send transfer complete message
            if(!failure) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_226_CLOSING_DATA_CONNECTION, "STOR", fileName));
                
                // call Ftplet.onUploadEnd() method
                try {
                    ftpletRet = ftpletContainer.onUploadEnd(session.getFtpletSession(), request);
                } catch(Exception e) {
                    LOG.debug("Ftplet container threw exception", e);
                    ftpletRet = FtpletEnum.RET_DISCONNECT;
                }
                if(ftpletRet == FtpletEnum.RET_DISCONNECT) {

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Examples of org.apache.ftpserver.ftplet.Ftplet

            } else {
                session.setUser(null);
            }
            
            // call Ftplet.onLogin() method
            Ftplet ftpletContainer = context.getFtpletContainer();
            if(ftpletContainer != null) {
                FtpletEnum ftpletRet;
                try{
                    ftpletRet = ftpletContainer.onLogin(session.getFtpletSession(), request);
                } catch(Exception e) {
                    LOG.debug("Ftplet container threw exception", e);
                    ftpletRet = FtpletEnum.RET_DISCONNECT;
                }
                if(ftpletRet == FtpletEnum.RET_DISCONNECT) {

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Examples of org.apache.ftpserver.ftplet.Ftplet

                    return;
                }
            }
            
            // call Ftplet.onAppendStart() method
            Ftplet ftpletContainer = context.getFtpletContainer();
            FtpletEnum ftpletRet;
            try {
                ftpletRet = ftpletContainer.onAppendStart(session.getFtpletSession(), request);
            } catch(Exception e) {
                LOG.debug("Ftplet container threw exception", e);
                ftpletRet = FtpletEnum.RET_DISCONNECT;
            }
            if(ftpletRet == FtpletEnum.RET_SKIP) {
                return;
            }
            else if(ftpletRet == FtpletEnum.RET_DISCONNECT) {
                session.closeOnFlush().awaitUninterruptibly(10000);
                return;
            }
            
            // get filenames
            FileObject file = null;
            try {
                file = session.getFileSystemView().getFileObject(fileName);
            }
            catch(Exception e) {
                LOG.debug("File system threw exception", e);
            }
            if(file == null) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "APPE.invalid", fileName));
                return;
            }
            fileName = file.getFullName();
            
            // check file existance
            if(file.doesExist() && !file.isFile()) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "APPE.invalid", fileName));
                return;
            }
            
            // check permission
            if( !file.hasWritePermission()) {
              session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "APPE.permission", fileName));
                return;
            }
            
            // get data connection
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_150_FILE_STATUS_OKAY, "APPE", fileName));
            
            DataConnection dataConnection;
            try {
                dataConnection = session.getDataConnection().openConnection();
            } catch (Exception e) {
                LOG.debug("Exception when getting data input stream", e);
                session.write(FtpReplyUtil.translate(session,request,  context, FtpReply.REPLY_425_CANT_OPEN_DATA_CONNECTION, "APPE", fileName));
                return;
            }
             
            // get data from client
            boolean failure = false;
            OutputStream os = null;
            try {
                
              // find offset
              long offset = 0L;
              if(file.doesExist()) {
                offset = file.getSize();
              }
              
                // open streams
                os = file.createOutputStream(offset);
                    
                // transfer data
                long transSz = dataConnection.transferFromClient(os);
                
                // log message
                String userName = session.getUser().getName();


                LOG.info("File upload : " + userName + " - " + fileName);
                
                // notify the statistics component
                ServerFtpStatistics ftpStat = (ServerFtpStatistics)context.getFtpStatistics();
                ftpStat.setUpload(session, file, transSz);
            }
            catch(SocketException e) {
                LOG.debug("SocketException during file upload", e);
                failure = true;
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_426_CONNECTION_CLOSED_TRANSFER_ABORTED, "APPE", fileName));
            }
            catch(IOException e) {
                LOG.debug("IOException during file upload", e);
                failure = true;
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_551_REQUESTED_ACTION_ABORTED_PAGE_TYPE_UNKNOWN, "APPE", fileName));
            }
            finally {
                IoUtils.close(os);
            }
            
            // if data transfer ok - send transfer complete message
            if(!failure) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_226_CLOSING_DATA_CONNECTION, "APPE", fileName));
                
                // call Ftplet.onAppendEnd() method
                try {
                    ftpletRet = ftpletContainer.onAppendEnd(session.getFtpletSession(), request);
                } catch(Exception e) {
                    LOG.debug("Ftplet container threw exception", e);
                    ftpletRet = FtpletEnum.RET_DISCONNECT;
                }
                if(ftpletRet == FtpletEnum.RET_DISCONNECT) {

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Examples of org.apache.ftpserver.ftplet.Ftplet

            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS, "RMD", null));
            return;  
        }
        
        // call Ftplet.onRmdirStart() method
        Ftplet ftpletContainer = context.getFtpletContainer();
        FtpletEnum ftpletRet;
        try{
            ftpletRet = ftpletContainer.onRmdirStart(session.getFtpletSession(), request);
        } catch(Exception e) {
            LOG.debug("Ftplet container threw exception", e);
            ftpletRet = FtpletEnum.RET_DISCONNECT;
        }
        if(ftpletRet == FtpletEnum.RET_SKIP) {
            return;
        }
        else if(ftpletRet == FtpletEnum.RET_DISCONNECT) {
            session.closeOnFlush().awaitUninterruptibly(10000);
            return;
        }
        
        // get file object
        FileObject file = null;
        try {
            file = session.getFileSystemView().getFileObject(fileName);
        }
        catch(Exception ex) {
            LOG.debug("Exception getting file object", ex);
        }
        if(file == null) {
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "RMD.permission", fileName));
            return;
        }
        
        // check permission
        fileName = file.getFullName();
        if( !file.hasDeletePermission() ) {
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "RMD.permission", fileName));
            return;
        }
        
        // check file
        if(!file.isDirectory()) {
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "RMD.invalid", fileName));
            return;
        }
        
        // now delete directory
        if(file.delete()) {
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_250_REQUESTED_FILE_ACTION_OKAY, "RMD", fileName)); 
            
            // write log message
            String userName = session.getUser().getName();
            LOG.info("Directory remove : " + userName + " - " + fileName);
            
            // notify statistics object
            ServerFtpStatistics ftpStat = (ServerFtpStatistics)context.getFtpStatistics();
            ftpStat.setRmdir(session, file);
            
            // call Ftplet.onRmdirEnd() method
            try{
                ftpletRet = ftpletContainer.onRmdirEnd(session.getFtpletSession(), request);
            } catch(Exception e) {
                LOG.debug("Ftplet container threw exception", e);
                ftpletRet = FtpletEnum.RET_DISCONNECT;
            }
            if(ftpletRet == FtpletEnum.RET_DISCONNECT) {

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Examples of org.apache.ftpserver.ftplet.Ftplet

                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS, "RNTO", null));
                return;  
            }
            
            // call Ftplet.onRenameStart() method
            Ftplet ftpletContainer = context.getFtpletContainer();
            FtpletEnum ftpletRet;
            try {
                ftpletRet = ftpletContainer.onRenameStart(session.getFtpletSession(), request);
            } catch(Exception e) {
                LOG.debug("Ftplet container threw exception", e);
                ftpletRet = FtpletEnum.RET_DISCONNECT;
            }
            if(ftpletRet == FtpletEnum.RET_SKIP) {
                return;
            }
            else if(ftpletRet == FtpletEnum.RET_DISCONNECT) {
                session.closeOnFlush().awaitUninterruptibly(10000);
                return;
            }
            
            // get the "rename from" file object
            FileObject frFile = session.getRenameFrom();
            if( frFile == null ) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_503_BAD_SEQUENCE_OF_COMMANDS, "RNTO", null));
                return;
            }
            
            // get target file
            FileObject toFile = null;
            try {
                toFile = session.getFileSystemView().getFileObject(toFileStr);
            }
            catch(Exception ex) {
                LOG.debug("Exception getting file object", ex);
            }
            if(toFile == null) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_553_REQUESTED_ACTION_NOT_TAKEN_FILE_NAME_NOT_ALLOWED, "RNTO.invalid", null));
                return;
            }
            toFileStr = toFile.getFullName();
            
            // check permission
            if( !toFile.hasWritePermission() ) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_553_REQUESTED_ACTION_NOT_TAKEN_FILE_NAME_NOT_ALLOWED, "RNTO.permission", null));
                return;
            }
            
            // check file existance
            if( !frFile.doesExist() ) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_553_REQUESTED_ACTION_NOT_TAKEN_FILE_NAME_NOT_ALLOWED, "RNTO.missing", null));
                return;
            }
            
            // now rename
            if( frFile.move(toFile) ) { 
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_250_REQUESTED_FILE_ACTION_OKAY, "RNTO", toFileStr));


                LOG.info("File rename (" + session.getUser().getName() + ") " 
                                         + frFile.getFullName() + " -> " + toFile.getFullName());
                
                // call Ftplet.onRenameEnd() method
                try {
                    ftpletRet = ftpletContainer.onRenameEnd(session.getFtpletSession(), request);
                } catch(Exception e) {
                    LOG.debug("Ftplet container threw exception", e);
                    ftpletRet = FtpletEnum.RET_DISCONNECT;
                }
                if(ftpletRet == FtpletEnum.RET_DISCONNECT) {

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Examples of org.apache.ftpserver.ftplet.Ftplet

                LOG.info("Configuring ftplet : " + ftpletName);
                
                // get ftplet specific configuration
                Configuration subConfig = ftpletConf.subset(ftpletName);
                
                Ftplet ftplet = (Ftplet) ConfigurationClassUtils.createBean(subConfig, DefaultFtplet.class.getName());
                ftplet.init(this);
                container.addFtplet(ftpletName, ftplet);
            }
        }
        catch(FtpException ex) {
            container.destroy();

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Examples of org.apache.ftpserver.ftplet.Ftplet

            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS, "MKD", null));
            return;    
        }
        
        // call Ftplet.onMkdirStart() method
        Ftplet ftpletContainer = context.getFtpletContainer();
        FtpletEnum ftpletRet;
        try{
            ftpletRet = ftpletContainer.onMkdirStart(session.getFtpletSession(), request);
        } catch(Exception e) {
            LOG.debug("Ftplet container threw exception", e);
            ftpletRet = FtpletEnum.RET_DISCONNECT;
        }
        if(ftpletRet == FtpletEnum.RET_SKIP) {
            return;
        }
        else if(ftpletRet == FtpletEnum.RET_DISCONNECT) {
            session.closeOnFlush().awaitUninterruptibly(10000);
            return;
        }
        
        // get file object
        FileObject file = null;
        try {
            file = session.getFileSystemView().getFileObject(fileName);
        }
        catch(Exception ex) {
            LOG.debug("Exception getting file object", ex);
        }
        if(file == null) {
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "MKD.invalid", fileName));
            return;
        }
        
        // check permission
        fileName = file.getFullName();
        if( !file.hasWritePermission() ) {
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "MKD.permission", fileName));
            return;
        }
        
        // check file existance
        if(file.doesExist()) {
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "MKD.exists", fileName));
            return;
        }
        
        // now create directory
        if(file.mkdir()) {
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_257_PATHNAME_CREATED, "MKD", fileName));
            
            // write log message
            String userName = session.getUser().getName();
            LOG.info("Directory create : " + userName + " - " + fileName);
            
            // notify statistics object
            ServerFtpStatistics ftpStat = (ServerFtpStatistics)context.getFtpStatistics();
            ftpStat.setMkdir(session, file);
            
            // call Ftplet.onMkdirEnd() method
            try{
                ftpletRet = ftpletContainer.onMkdirEnd(session.getFtpletSession(), request);
            } catch(Exception e) {
                LOG.debug("Ftplet container threw exception", e);
                ftpletRet = FtpletEnum.RET_DISCONNECT;
            }
            if(ftpletRet == FtpletEnum.RET_DISCONNECT) {

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Examples of org.apache.ftpserver.ftplet.Ftplet

                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS, "RETR", null));
                return;  
            }
    
            // call Ftplet.onDownloadStart() method
            Ftplet ftpletContainer = context.getFtpletContainer();
            FtpletEnum ftpletRet;
            try {
                ftpletRet = ftpletContainer.onDownloadStart(session.getFtpletSession(), request);
            } catch(Exception e) {
                LOG.debug("Ftplet container threw exception", e);
                ftpletRet = FtpletEnum.RET_DISCONNECT;
            }
            if(ftpletRet == FtpletEnum.RET_SKIP) {
                return;
            }
            else if(ftpletRet == FtpletEnum.RET_DISCONNECT) {
                session.closeOnFlush().awaitUninterruptibly(10000);
                return;
            }
            
            // get file object
            FileObject file = null;
            try {
                file = session.getFileSystemView().getFileObject(fileName);
            }
            catch(Exception ex) {
                LOG.debug("Exception getting file object", ex);
            }
            if(file == null) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "RETR.missing", fileName));
                return;
            }
            fileName = file.getFullName();
            
            // check file existance
            if(!file.doesExist()) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "RETR.missing", fileName));
                return;
            }
            
            // check valid file
            if(!file.isFile()) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "RETR.invalid", fileName));
                return;
            }
            
            // check permission
            if(!file.hasReadPermission()) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "RETR.permission", fileName));
                return;
            }


            // 24-10-2007 - added check if PORT or PASV is issued, see https://issues.apache.org/jira/browse/FTPSERVER-110
            DataConnectionFactory connFactory = session.getDataConnection();
            if (connFactory instanceof IODataConnectionFactory) {
                InetAddress address = ((IODataConnectionFactory)connFactory).getInetAddress();
                if (address == null) {
                    session.write(new DefaultFtpReply(FtpReply.REPLY_503_BAD_SEQUENCE_OF_COMMANDS, "PORT or PASV must be issued first"));
                    return;
                }
            }
            
            // get data connection
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_150_FILE_STATUS_OKAY, "RETR", null));


            
            // send file data to client
            boolean failure = false;
            InputStream is = null;


            DataConnection dataConnection;
            try {
                dataConnection = session.getDataConnection().openConnection();
            } catch (Exception e) {
                LOG.debug("Exception getting the output data stream", e);
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_425_CANT_OPEN_DATA_CONNECTION, "RETR", null));
                return;
            }
            
            try {
                
                // open streams
                is = openInputStream(session, file, skipLen);
                
                // transfer data
                long transSz = dataConnection.transferToClient(is);
                
                // log message
                String userName = session.getUser().getName();
                LOG.info("File download : " + userName + " - " + fileName);
                
                // notify the statistics component
                ServerFtpStatistics ftpStat = (ServerFtpStatistics)context.getFtpStatistics();
                if(ftpStat != null)  {
                    ftpStat.setDownload(session, file, transSz);
                }
            }
            catch(SocketException ex) {
                LOG.debug("Socket exception during data transfer", ex);
                failure = true;
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_426_CONNECTION_CLOSED_TRANSFER_ABORTED, "RETR", fileName));
            }
            catch(IOException ex) {
                LOG.debug("IOException during data transfer", ex);
                failure = true;
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_551_REQUESTED_ACTION_ABORTED_PAGE_TYPE_UNKNOWN, "RETR", fileName));
            }
            finally {
                IoUtils.close(is);
            }
            
            // if data transfer ok - send transfer complete message
            if(!failure) {
                session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_226_CLOSING_DATA_CONNECTION, "RETR", fileName));
                
                // call Ftplet.onDownloadEnd() method
                try {
                    ftpletRet = ftpletContainer.onDownloadEnd(session.getFtpletSession(), request);
                } catch(Exception e) {
                    LOG.debug("Ftplet container threw exception", e);
                    ftpletRet = FtpletEnum.RET_DISCONNECT;
                }
                if(ftpletRet == FtpletEnum.RET_DISCONNECT) {

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Examples of org.apache.ftpserver.ftplet.Ftplet

            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS, "DELE", null));
            return;  
        }
        
        // call Ftplet.onDeleteStart() method
        Ftplet ftpletContainer = context.getFtpletContainer();
        FtpletEnum ftpletRet;
        try {
            ftpletRet = ftpletContainer.onDeleteStart(session.getFtpletSession(), request);
        } catch(Exception e) {
            LOG.debug("Ftplet container threw exception", e);
            ftpletRet = FtpletEnum.RET_DISCONNECT;
        }
        if(ftpletRet == FtpletEnum.RET_SKIP) {
          session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_450_REQUESTED_FILE_ACTION_NOT_TAKEN, "DELE", fileName));
            return;
        }
        else if(ftpletRet == FtpletEnum.RET_DISCONNECT) {
            session.closeOnFlush().awaitUninterruptibly(10000);
            return;
        }


        // get file object
        FileObject file = null;
        
        try {
            file = session.getFileSystemView().getFileObject(fileName);
        }
        catch(Exception ex) {
            LOG.debug("Could not get file " + fileName, ex);
        }
        if(file == null) {
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, "DELE.invalid", fileName));
            return;
        }


        // check file
        fileName = file.getFullName();


        if( !file.hasDeletePermission() ) {
            session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_450_REQUESTED_FILE_ACTION_NOT_TAKEN, "DELE.permission", fileName));
            return;
        }
        
        // now delete
        if(file.delete()) {
          session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_250_REQUESTED_FILE_ACTION_OKAY, "DELE", fileName)); 
            
            // log message
            String userName = session.getUser().getName();
            
            LOG.info("File delete : " + userName + " - " + fileName);
            
            // notify statistics object
            ServerFtpStatistics ftpStat = (ServerFtpStatistics)context.getFtpStatistics();
            ftpStat.setDelete(session, file);
            
            // call Ftplet.onDeleteEnd() method
            try{
                ftpletRet = ftpletContainer.onDeleteEnd(session.getFtpletSession(), request);
            } catch(Exception e) {
                LOG.debug("Ftplet container threw exception", e);
                ftpletRet = FtpletEnum.RET_DISCONNECT;
            }
            if(ftpletRet == FtpletEnum.RET_DISCONNECT) {

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Examples of org.apache.ftpserver.ftplet.Ftplet

    public void execute(final FtpIoSession session,
            final FtpServerContext context,
            final FtpRequest request) throws IOException, FtpException {
        
        // call Ftplet.onSite method
        Ftplet ftpletContainer = context.getFtpletContainer();
        FtpletEnum ftpletRet;
        try {
            ftpletRet = ftpletContainer.onSite(session.getFtpletSession(), request);
        } catch(Exception e) {
            LOG.debug("Ftplet container threw exception", e);
            ftpletRet = FtpletEnum.RET_DISCONNECT;
        }
        if(ftpletRet == FtpletEnum.RET_SKIP) {

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