/***********************************************************************
*
* $CVSHeader$
*
* This file is part of WebScarab, an Open Web Application Security
* Project utility. For details, please see http://www.owasp.org/
*
* Copyright (c) 2002 - 2004 Rogan Dawes
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Getting Source
* ==============
*
* Source for this application is maintained at Sourceforge.net, a
* repository for free software projects.
*
* For details, please see http://www.sourceforge.net/projects/owasp
*
*/
/*
* HexEditor.java
*
* Created on November 4, 2003, 8:23 AM
*/
package org.owasp.webscarab.ui.swing.editors;
import java.awt.Color;
import java.util.regex.PatternSyntaxException;
import javax.swing.InputMap;
import javax.swing.text.Element;
import org.owasp.webscarab.model.Preferences;
import javax.swing.AbstractAction;
import javax.swing.KeyStroke;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.awt.Event;
import javax.swing.event.DocumentListener;
import javax.swing.event.DocumentEvent;
import java.io.UnsupportedEncodingException;
import org.owasp.webscarab.util.CharsetUtils;
/**
*
* @author rdawes
*/
public class TextPanel extends javax.swing.JPanel implements ByteArrayEditor {
/**
*
*/
private static final long serialVersionUID = -3187847151844324989L;
private static boolean _findVisible = false;
private static String _find = "";
private static boolean _caseSensitive = false;
private int _start = 0;
private boolean _editable = false;
private boolean _modified = false;
private byte[] _bytes = null;
private String _charset = null;
private String _text = null;
private DocumentChangeListener _dcl = new DocumentChangeListener();
private RegexSearcher searcher;
/** Creates new form HexEditor */
public TextPanel() {
initComponents();
findCaseCheckBox.setSelected(_caseSensitive);
setName("Text");
searcher = new RegexSearcher(textTextArea, textTextArea.getSelectionColor(), Color.YELLOW);
InputMap inputMap = textTextArea.getInputMap(WHEN_FOCUSED);
textTextArea.getActionMap().put("TOGGLEWRAP", new AbstractAction() {
/**
*
*/
private static final long serialVersionUID = -5660836423742675291L;
public void actionPerformed(ActionEvent event) {
textTextArea.setLineWrap(! textTextArea.getLineWrap());
}
});
// Ctrl-W to toggle wordwrap
inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_W, Event.CTRL_MASK), "TOGGLEWRAP");
textTextArea.getActionMap().put("TOGGLEFIND", new AbstractAction() {
/**
*
*/
private static final long serialVersionUID = 1834782994385394227L;
public void actionPerformed(ActionEvent event) {
_findVisible = ! findPanel.isVisible();
findPanel.setVisible(_findVisible);
if (_findVisible) {
findTextField.requestFocusInWindow();
}
}
});
// Ctrl-F to toggle the find bar
inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_F, Event.CTRL_MASK), "TOGGLEFIND");
findPanel.setVisible(_findVisible);
findTextField.setText(_find);
findTextField.getDocument().addDocumentListener(new DocumentListener() {
public void changedUpdate(DocumentEvent evt) {
find();
}
public void removeUpdate(DocumentEvent evt) {
find();
}
public void insertUpdate(DocumentEvent evt) {
find();
}
private void find() {
_find = findTextField.getText();
doFind(_find, _caseSensitive);
_start = nextMatch(0);
}
});
}
public void setEditable(boolean editable) {
_editable = editable;
textTextArea.setEditable(editable);
}
public void setBytes(String contentType, byte[] bytes) {
_bytes = bytes;
if (bytes == null) {
setText(contentType, "");
} else {
_charset = null;
int ci = contentType.indexOf("charset");
if ( ci == -1) {
_charset = CharsetUtils.getCharset(bytes);
if (_charset == null)
_charset = "ASCII";
} else {
_charset = contentType.substring(ci+8);
}
try {
setText(contentType, new String(bytes, _charset));
} catch (UnsupportedEncodingException e) {
setText(contentType, e.getMessage());
}
}
}
public void setText(String contentType, String text) {
String wrap = Preferences.getPreference("TextPanel.wrap", "false");
if (wrap != null && wrap.equals("true")) textTextArea.setLineWrap(true);
_text = text;
textTextArea.getDocument().removeDocumentListener(_dcl);
_modified = false;
if (text != null)
textTextArea.setText(text);
textTextArea.setCaretPosition(0);
if (_editable)
textTextArea.getDocument().addDocumentListener(_dcl);
doFind(_find, _caseSensitive);
_start = nextMatch(0);
}
public String getText() {
_text = textTextArea.getText();
return _text;
}
public boolean isModified() {
return _editable && _modified;
}
public byte[] getBytes() {
if (isModified()) {
try {
String text = getText();
if (_charset == null)
_charset = CharsetUtils.getCharset(text.getBytes());
if (_charset != null) {
_bytes = text.getBytes(_charset);
} else {
_bytes = text.getBytes();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
return _bytes;
}
private int nextMatch(int oldPos) {
int pos = searcher.nextMatch();
StringBuffer message = new StringBuffer();
if (pos == -1) {
message.append("Not found");
} else {
if (pos <= oldPos) {
message.append("Reached end of page, continued from top. ");
}
message.append(getLocation(pos));
}
findMessageLabel.setText(message.toString());
return pos;
}
private int previousMatch(int oldPos) {
int pos = searcher.previousMatch();
StringBuffer message = new StringBuffer();
if (pos == -1) {
message.append("Not found");
} else {
if (pos >= oldPos) {
message.append("Reached top of page, continued from bottom. ");
}
message.append("Found at " + getLocation(pos));
}
findMessageLabel.setText(message.toString());
return pos;
}
private void doFind(String pattern, boolean caseSensitive) {
try {
searcher.search(pattern, caseSensitive);
} catch (PatternSyntaxException pse) {
findMessageLabel.setText(pse.getMessage());
}
}
private String getLocation(int pos) {
Element root = textTextArea.getDocument().getDefaultRootElement();
int row = root.getElementIndex(pos);
Element rowElement = root.getElement(row);
int column = pos - rowElement.getStartOffset();
return ("line " + (row + 1) + ", " + (column + 1));
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
// <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
private void initComponents() {
java.awt.GridBagConstraints gridBagConstraints;
textScrollPane = new javax.swing.JScrollPane();
textTextArea = new javax.swing.JTextArea();
findPanel = new javax.swing.JPanel();
findLabel = new javax.swing.JLabel();
findTextField = new javax.swing.JTextField();
findNextButton = new javax.swing.JButton();
findPreviousButton = new javax.swing.JButton();
findCaseCheckBox = new javax.swing.JCheckBox();
findMessageLabel = new javax.swing.JLabel();
setLayout(new java.awt.BorderLayout());
textTextArea.setEditable(false);
textScrollPane.setViewportView(textTextArea);
add(textScrollPane, java.awt.BorderLayout.CENTER);
findPanel.setLayout(new java.awt.GridBagLayout());
findLabel.setText("Find: ");
findPanel.add(findLabel, new java.awt.GridBagConstraints());
findTextField.setMinimumSize(new java.awt.Dimension(60, 19));
findTextField.setPreferredSize(new java.awt.Dimension(80, 19));
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.fill = java.awt.GridBagConstraints.VERTICAL;
findPanel.add(findTextField, gridBagConstraints);
findNextButton.setMnemonic('N');
findNextButton.setText("Next");
findNextButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
findNextButtonActionPerformed(evt);
}
});
findPanel.add(findNextButton, new java.awt.GridBagConstraints());
findPreviousButton.setMnemonic('N');
findPreviousButton.setText("Previous");
findPreviousButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
findPreviousButtonActionPerformed(evt);
}
});
findPanel.add(findPreviousButton, new java.awt.GridBagConstraints());
findCaseCheckBox.setMnemonic('M');
findCaseCheckBox.setText("Match Case");
findCaseCheckBox.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
findCaseCheckBoxActionPerformed(evt);
}
});
findPanel.add(findCaseCheckBox, new java.awt.GridBagConstraints());
findMessageLabel.setFont(new java.awt.Font("Dialog", 0, 12));
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 6;
gridBagConstraints.gridy = 0;
gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
gridBagConstraints.weightx = 1.0;
findPanel.add(findMessageLabel, gridBagConstraints);
add(findPanel, java.awt.BorderLayout.SOUTH);
}// </editor-fold>//GEN-END:initComponents
private void findPreviousButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_findPreviousButtonActionPerformed
_start = previousMatch(_start);
}//GEN-LAST:event_findPreviousButtonActionPerformed
private void findCaseCheckBoxActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_findCaseCheckBoxActionPerformed
_caseSensitive = findCaseCheckBox.isSelected();
doFind(_find, _caseSensitive);
_start = nextMatch(0);
}//GEN-LAST:event_findCaseCheckBoxActionPerformed
private void findNextButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_findNextButtonActionPerformed
_start = nextMatch(_start);
}//GEN-LAST:event_findNextButtonActionPerformed
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JCheckBox findCaseCheckBox;
private javax.swing.JLabel findLabel;
private javax.swing.JLabel findMessageLabel;
private javax.swing.JButton findNextButton;
private javax.swing.JPanel findPanel;
private javax.swing.JButton findPreviousButton;
private javax.swing.JTextField findTextField;
private javax.swing.JScrollPane textScrollPane;
private javax.swing.JTextArea textTextArea;
// End of variables declaration//GEN-END:variables
public static void main(String[] args) {
javax.swing.JFrame top = new javax.swing.JFrame("Text Editor");
top.addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent evt) {
System.exit(0);
}
});
TextPanel tp = new TextPanel();
top.getContentPane().add(tp);
top.setBounds(100,100,600,400);
try {
java.io.ByteArrayOutputStream baos = new java.io.ByteArrayOutputStream();
java.io.FileInputStream fis = new java.io.FileInputStream("/etc/passwd");
byte[] buff = new byte[1024];
int got;
while ((got = fis.read(buff))>-1) baos.write(buff, 0, got);
fis.close(); baos.close();
tp.setBytes("text", baos.toByteArray());
// tp.setBytes("text", "ABCDEFGHIJKLMNOP\nABCDEFGHIJKLMNOP".getBytes());
tp.setEditable(true);
top.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
private class DocumentChangeListener implements DocumentListener {
public void changedUpdate(DocumentEvent evt) {
_modified = true;
_text = null;
}
public void removeUpdate(DocumentEvent evt) {
_modified = true;
_text = null;
}
public void insertUpdate(DocumentEvent evt) {
_modified = true;
_text = null;
}
}
}