verifierappframe.java

Java Bytecode Editor 是一个 JAVA 的字节码反汇编和修改器。它可以很方便的修改已经编译成 Class 文件的 JAVA 文件。

      }
    });
    jSplitPane2.add(messagesPanel, JSplitPane.BOTTOM);
    messagesPanel.add(messagesScrollPane, null);
    messagesScrollPane.getViewport().add(messagesTextPane, null);
    jSplitPane2.add(jPanel3, JSplitPane.TOP);
    jPanel3.add(jScrollPane3, null);
    jScrollPane3.getViewport().add(pass1TextPane, null);
    jPanel3.add(jScrollPane4, null);
    jPanel3.add(jSplitPane3, null);
    jSplitPane3.add(jScrollPane2, JSplitPane.LEFT);
    jScrollPane2.getViewport().add(pass3aJList, null);
    jSplitPane3.add(jScrollPane5, JSplitPane.RIGHT);
    jScrollPane5.getViewport().add(pass3aTextPane, null);
    jPanel3.add(jSplitPane4, null);
    jSplitPane4.add(jScrollPane6, JSplitPane.LEFT);
    jScrollPane6.getViewport().add(pass3bJList, null);
    jSplitPane4.add(jScrollPane7, JSplitPane.RIGHT);
    jScrollPane7.getViewport().add(pass3bTextPane, null);
    jScrollPane4.getViewport().add(pass2TextPane, null);
    jSplitPane1.add(jPanel2, JSplitPane.TOP);
    jPanel2.add(jScrollPane1, null);
    jSplitPane1.add(jPanel1, JSplitPane.BOTTOM);
    jPanel1.add(jSplitPane2, null);
    jScrollPane1.getViewport().add(classNamesJList, null);
    jMenuBar1.add(jMenu1);
    jMenuBar1.add(jMenu2);
    contentPane.add(jSplitPane1, "jSplitPane1");
    jMenu1.add(newFileMenuItem);
    jMenu2.add(whatisMenuItem);
    jMenu2.add(aboutMenuItem);
    jSplitPane2.setDividerLocation(300);
    jSplitPane3.setDividerLocation(150);
    jSplitPane4.setDividerLocation(150);
  }

  /** Overridden to stop the application on a closing window. */
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }

  synchronized void classNamesJList_valueChanged(ListSelectionEvent e) {
    if (e.getValueIsAdjusting()) return;
    current_class = classNamesJList.getSelectedValue().toString();
    verify();
    classNamesJList.setSelectedValue(current_class, true);
  }

  private void verify(){
    setTitle("PLEASE WAIT");

    Verifier v = VerifierFactory.getVerifier(current_class);
    v.flush(); // Don't cache the verification result for this class.

    VerificationResult vr;

    vr =  v.doPass1();
    if (vr.getStatus() == VerificationResult.VERIFIED_REJECTED){
      pass1TextPane.setText(vr.getMessage());
      pass1TextPane.setBackground(Color.red);

      pass2TextPane.setText("");
      pass2TextPane.setBackground(Color.yellow);
      pass3aTextPane.setText("");
      pass3aJList.setListData(new Object[0]);
      pass3aTextPane.setBackground(Color.yellow);

      pass3bTextPane.setText("");
      pass3bJList.setListData(new Object[0]);
      pass3bTextPane.setBackground(Color.yellow);

    }
    else{ // Must be VERIFIED_OK, Pass 1 does not know VERIFIED_NOTYET
      pass1TextPane.setBackground(Color.green);
      pass1TextPane.setText(vr.getMessage());

      vr = v.doPass2();
      if (vr.getStatus() == VerificationResult.VERIFIED_REJECTED){
        pass2TextPane.setText(vr.getMessage());
        pass2TextPane.setBackground(Color.red);

        pass3aTextPane.setText("");
        pass3aTextPane.setBackground(Color.yellow);
        pass3aJList.setListData(new Object[0]);
        pass3bTextPane.setText("");
        pass3bTextPane.setBackground(Color.yellow);
        pass3bJList.setListData(new Object[0]);
      }
      else{ // must be Verified_OK, because Pass1 was OK (cannot be Verified_NOTYET).
          pass2TextPane.setText(vr.getMessage());
          pass2TextPane.setBackground(Color.green);

          JavaClass jc = Repository.lookupClass(current_class);
          /*
          boolean all3aok = true;
          boolean all3bok = true;
          String all3amsg = "";
          String all3bmsg = "";
          */

          String[] methodnames = new String[jc.getMethods().length];
          for (int i=0; i<jc.getMethods().length; i++){
            methodnames[i] = jc.getMethods()[i].toString().replace('\n',' ').replace('\t',' ');
          }
          pass3aJList.setListData(methodnames);
          pass3aJList.setSelectionInterval(0,jc.getMethods().length-1);
          pass3bJList.setListData(methodnames);
          pass3bJList.setSelectionInterval(0,jc.getMethods().length-1);
      }

    }
    String[] msgs = v.getMessages();
    messagesTextPane.setBackground(msgs.length == 0? Color.green : Color.yellow);
    String allmsgs = "";
    for (int i=0; i<msgs.length; i++){
      msgs[i] = msgs[i].replace('\n',' ');
      allmsgs += msgs[i] + "\n\n";
    }
    messagesTextPane.setText(allmsgs);

    setTitle(current_class + " - " + JUSTICE_VERSION);
  }

  void newFileMenuItem_actionPerformed(ActionEvent e) {
    String classname = JOptionPane.showInputDialog("Please enter the fully qualified name of a class or interface to verify:");
    if ((classname == null) || (classname.equals(""))) return;
    VerifierFactory.getVerifier(classname); // let observers do the rest.
    classNamesJList.setSelectedValue(classname, true);
  }

  synchronized void pass3aJList_valueChanged(ListSelectionEvent e) {

    if (e.getValueIsAdjusting()) return;
    Verifier v = VerifierFactory.getVerifier(current_class);

    String all3amsg = "";
    boolean all3aok = true;
    boolean rejected = false;
    for (int i=0; i<pass3aJList.getModel().getSize(); i++){

      if (pass3aJList.isSelectedIndex(i)){
        VerificationResult vr = v.doPass3a(i);

        if (vr.getStatus() == VerificationResult.VERIFIED_REJECTED){
          all3aok = false;
          rejected = true;
        }
        all3amsg += "Method '"+Repository.lookupClass(v.getClassName()).getMethods()[i]+"': "+vr.getMessage().replace('\n',' ')+"\n\n";
      }
    }
    pass3aTextPane.setText(all3amsg);
    pass3aTextPane.setBackground(all3aok? Color.green : (rejected? Color.red : Color.yellow));

  }

  synchronized void pass3bJList_valueChanged(ListSelectionEvent e) {
    if (e.getValueIsAdjusting()) return;

    Verifier v = VerifierFactory.getVerifier(current_class);

    String all3bmsg = "";
    boolean all3bok = true;
    boolean rejected = false;
    for (int i=0; i<pass3bJList.getModel().getSize(); i++){

      if (pass3bJList.isSelectedIndex(i)){
        VerificationResult vr = v.doPass3b(i);

        if (vr.getStatus() == VerificationResult.VERIFIED_REJECTED){
          all3bok = false;
          rejected = true;
        }
        all3bmsg += "Method '"+Repository.lookupClass(v.getClassName()).getMethods()[i]+"': "+vr.getMessage().replace('\n',' ')+"\n\n";
      }
    }
    pass3bTextPane.setText(all3bmsg);
    pass3bTextPane.setBackground(all3bok? Color.green : (rejected? Color.red : Color.yellow));

  }

  void aboutMenuItem_actionPerformed(ActionEvent e) {
    JOptionPane.showMessageDialog(this,
            "JustIce is a Java class file verifier.\nIt was implemented by Enver Haase in 2001, 2002.\n<http://jakarta.apache.org/bcel/index.html>",
             JUSTICE_VERSION, JOptionPane.INFORMATION_MESSAGE);
  }

  void whatisMenuItem_actionPerformed(ActionEvent e) {
    JOptionPane.showMessageDialog(this,
            "The upper four boxes to the right reflect verification passes according to The Java Virtual Machine Specification.\nThese are (in that order): Pass one, Pass two, Pass three (before data flow analysis), Pass three (data flow analysis).\nThe bottom box to the right shows (warning) messages; warnings do not cause a class to be rejected.",
             JUSTICE_VERSION, JOptionPane.INFORMATION_MESSAGE);
  }
}