//License/*** * Java TelnetD library (embeddable telnet daemon) * Copyright (c) 2000-2005 Dieter Wimberger  * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of the author nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. *   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE  * POSSIBILITY OF SUCH DAMAGE. ***/package net.wimpi.telnetd.shell;import net.wimpi.telnetd.io.BasicTerminalIO;import net.wimpi.telnetd.io.TerminalIO;import net.wimpi.telnetd.io.terminal.ColorHelper;import net.wimpi.telnetd.io.terminal.TerminalManager;import net.wimpi.telnetd.io.toolkit.*;import net.wimpi.telnetd.net.Connection;import net.wimpi.telnetd.net.ConnectionData;import net.wimpi.telnetd.net.ConnectionEvent;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import java.io.IOException;/** * This class is an example implmentation of a Shell.<br> * It is used for testing the system.<br> * At the moment you can see all io toolkit classes in action, * pressing "t" at its prompt (instead of the enter, which is * requested for logging out again). * * @author Dieter Wimberger * @version 2.0 (16/07/2006) */public class DummyShell    implements Shell {  private static Log log = LogFactory.getLog(DummyShell.class);  private Connection m_Connection;  private BasicTerminalIO m_IO;  private Editfield m_EF;  /**   * Method that runs a shell   *   * @param con Connection that runs the shell.   */  public void run(Connection con) {    try {      m_Connection = con;      //mycon.setNextShell("nothing");      m_IO = m_Connection.getTerminalIO();      //dont forget to register listener      m_Connection.addConnectionListener(this);      //clear the screen and start from zero      m_IO.eraseScreen();      m_IO.homeCursor();      //We just read any key      m_IO.write("Dummy Shell. Please press enter to logout!\r\n");      m_IO.flush();      boolean done = false;      while (!done) {        int i = m_IO.read();        if (i == -1 || i == -2) {          log.debug("Input(Code):" + i);          done = true;        }        if (i == 10) {          done = true;        } else if (i == 117) {          ConnectionData cd = m_Connection.getConnectionData();          //output header          m_IO.write(BasicTerminalIO.CRLF +              "DEBUG: Active Connection" +              BasicTerminalIO.CRLF);          m_IO.write("------------------------" + BasicTerminalIO.CRLF);          //output connection data          m_IO.write("Connected from: " + cd.getHostName() +              "[" + cd.getHostAddress() + ":" + cd.getPort() + "]"              + BasicTerminalIO.CRLF);          m_IO.write("Guessed Locale: " + cd.getLocale() +              BasicTerminalIO.CRLF);          m_IO.write(BasicTerminalIO.CRLF);          //output negotiated terminal properties          m_IO.write("Negotiated Terminal Type: " +              cd.getNegotiatedTerminalType() + BasicTerminalIO.CRLF);          m_IO.write("Negotiated Columns: " + cd.getTerminalColumns() +              BasicTerminalIO.CRLF);          m_IO.write("Negotiated Rows: " + cd.getTerminalRows() +              BasicTerminalIO.CRLF);          //output of assigned terminal instance (the cast is a hack, please          //do not copy for other TCommands, because it would break the          //decoupling of interface and implementation!          m_IO.write(BasicTerminalIO.CRLF);          m_IO.write("Assigned Terminal instance: " +              ((TerminalIO) m_IO).getTerminal());          m_IO.write(BasicTerminalIO.CRLF);          m_IO.write("Environment: " + cd.getEnvironment().toString());          m_IO.write(BasicTerminalIO.CRLF);          //output footer          m_IO.write("-----------------------------------------------" +              BasicTerminalIO.CRLF + BasicTerminalIO.CRLF);          m_IO.flush();        } else if (i == 'e') {          //run editfield test          Label l = new Label(m_IO, "testedit", "TestEdit: ");          m_EF = new Editfield(m_IO, "edit", 50);          m_EF.registerInputFilter(new InputFilter() {            public int filterInput(int key) throws IOException {              if (key == 't') {                try {                  m_EF.setValue("Test");                } catch (BufferOverflowException e) {                }                return InputFilter.INPUT_HANDLED;              } else if (key == 'c') {                m_EF.clear();                return InputFilter.INPUT_HANDLED;              } else {                return key;              }            }          });          l.draw();          m_EF.run();        } else if (i == 116) {          //run test sequence          Pager pg = new Pager(m_IO);          pg.setShowPosition(true);          pg.page(logo + logo + logo + logo + logo + logo + logo + logo + logo + logo + logo);          Label l = new Label(m_IO, "label1");          l.setText("Hello World!");          l.setLocation(new Point(1, 5));          l.draw();          m_IO.flush();          m_IO.homeCursor();          m_IO.eraseScreen();          Titlebar tb = new Titlebar(m_IO, "title 1");          tb.setTitleText("MyTitle");          tb.setAlignment(Titlebar.ALIGN_CENTER);          tb.setBackgroundColor(ColorHelper.BLUE);          tb.setForegroundColor(ColorHelper.YELLOW);          tb.draw();          Statusbar sb = new Statusbar(m_IO, "status 1");          sb.setStatusText("MyStatus");          sb.setAlignment(Statusbar.ALIGN_LEFT);          sb.setBackgroundColor(ColorHelper.BLUE);          sb.setForegroundColor(ColorHelper.YELLOW);          sb.draw();          m_IO.flush();          m_IO.setCursor(2, 1);          Selection sel = new Selection(m_IO, "selection 1");          String[] tn = TerminalManager.getReference().getAvailableTerminals();          for (int n = 0; n < tn.length; n++) {            sel.addOption(tn[n]);          }          sel.setLocation(1, 10);          sel.run();          Checkbox cb = new Checkbox(m_IO, "checkbox 1");          cb.setText("Check me !");          cb.setLocation(1, 12);          cb.run();          Editfield ef = new Editfield(m_IO, "editfield 1", 20);          ef.setLocation(1, 13);          ef.run();          try {            ef.setValue("SETVALUE!");          } catch (Exception ex) {          }          Editfield ef2 = new Editfield(m_IO, "editfield 2", 8);          ef2.setLocation(1, 14);          ef2.setPasswordField(true);          ef2.run();          log.debug("Your secret password was:" + ef2.getValue());          m_IO.flush();          //clear the screen and start from zero          m_IO.eraseScreen();          m_IO.homeCursor();          //myio.flush();          Titlebar tb2 = new Titlebar(m_IO, "title 1");          tb2.setTitleText("jEditor v0.1");          tb2.setAlignment(Titlebar.ALIGN_LEFT);          tb2.setBackgroundColor(ColorHelper.BLUE);          tb2.setForegroundColor(ColorHelper.YELLOW);          tb2.draw();          Statusbar sb2 = new Statusbar(m_IO, "status 1");          sb2.setStatusText("Status");          sb2.setAlignment(Statusbar.ALIGN_LEFT);          sb2.setBackgroundColor(ColorHelper.BLUE);          sb2.setForegroundColor(ColorHelper.YELLOW);          sb2.draw();          m_IO.setCursor(2, 1);          Editarea ea = new Editarea(m_IO, "area", m_IO.getRows() - 2, 100);          m_IO.flush();          ea.run();          log.debug(ea.getValue());          m_IO.eraseScreen();          m_IO.homeCursor();          m_IO.write("Dummy Shell. Please press enter to logout!\r\n");          m_IO.flush();        }        //the next line is for debug reasons        else          log.debug("Input(Code):" + i);      }      m_IO.homeCursor();      m_IO.eraseScreen();      m_IO.write("Goodbye!.\r\n\r\n");      m_IO.flush();    } catch (Exception ex) {      log.error("run()", ex);    }  }//run  //this implements the ConnectionListener!  public void connectionTimedOut(ConnectionEvent ce) {    try {      m_IO.write("CONNECTION_TIMEDOUT");      m_IO.flush();      //close connection      m_Connection.close();    } catch (Exception ex) {      log.error("connectionTimedOut()", ex);    }  }//connectionTimedOut  public void connectionIdle(ConnectionEvent ce) {    try {      m_IO.write("CONNECTION_IDLE");      m_IO.flush();    } catch (IOException e) {      log.error("connectionIdle()", e);    }  }//connectionIdle  public void connectionLogoutRequest(ConnectionEvent ce) {    try {      m_IO.write("CONNECTION_LOGOUTREQUEST");      m_IO.flush();    } catch (Exception ex) {      log.error("connectionLogoutRequest()", ex);    }  }//connectionLogout    public void connectionSentBreak(ConnectionEvent ce) {    try {      m_IO.write("CONNECTION_BREAK");      m_IO.flush();    } catch (Exception ex) {      log.error("connectionSentBreak()", ex);    }  }//connectionSentBreak  public static Shell createShell() {    return new DummyShell();  }//createShell//Constants  private static final String logo =      "/***\n" +      "* \n" +      "* TelnetD library (embeddable telnet daemon)\n" +      "* Copyright (C) 2000-2005 Dieter Wimberger\n" +      "***/\n" +      "A looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo" +      "oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo" +      "oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo" +      "ng line!";}//class DummyShell