hushapplet.java

一个木马程序源码

              address="\""+c.fullname(addressChoice[n].getSelectedIndex()-1)+"\" <"+c.addresses(addressChoice[n].getSelectedIndex()-1)+">";
            else address=c.addresses(addressChoice[n].getSelectedIndex()-1);
            String fieldText = headerField[n].getText();
            if (!fieldText.equals("")) headerField[n].setText(fieldText+", "+address);
            else headerField[n].setText(address);
            addressChoice[n].select(0);
            if (!toHushmail(address))
            {
             encryptCheckbox.setState(false);
             statusBar(spaces+"Warning: mail sent to this address will not be secure"+spaces);
            }
          }
          composePanel.paintAll(composePanel.getGraphics());
          break;
        }
      }  
    } 

    /************************************************************************
     *  The following conditionals involve the arrays of buttons associated
     *  with lists of messages, folders, or addresses
     ************************************************************************/
   

    /* The array of buttons with a list of folders
     */
    else if (currentScreen.equals("listFolders"))
    {
      /* Iterate through list of folders currently displayed checking status of buttons on each
       */
      for (int x=currentFolderPage*linesPerPage;x<currentFolderPage*linesPerPage+numberOfFoldersDisplayed;x++)
      { 

	/* On click of "Open" button 
         */
        if (e.target==openFolderButton[x])
        {
          lockButtons(true);
          clearCommands();                 
          add(commands,commandsConstraints,
            new Label("Opening folder                                           "
                     +"                                                         "),0,0);
          commands.paintAll(commands.getGraphics());
          try 
          { 
            c.use();
            listMessages(c.folderName(x),0,true);
            c.done(); 
          } catch (IOException e8) {error();}
          currentScreen = "listMessages";
          mainLayout.show(main,currentScreen);
          clearCommands();
          if (c.numberOfMessages()>0) add(commands,commandsConstraints,selectAllButton,0,0);
          lockButtons(false);
          break;
        }

	/* On click of "Select" button 
         */
        else if (e.target==selectFolderButton[x])
        {
          if (folderSelected[x]) 
          {
            unselectFolder(x);
            showSelectFunctionButtons(foldersSelected()>0,2);
          }
          else 
          {
            selectFolder(x);
            showSelectFunctionButtons(true,2);
          }
          break;
        }
      }
    }

    /* The array of buttons with a list of messages
     */
    else if (currentScreen.equals("listMessages"))
    {
	/* Iterate through list of messages checking status of buttons on each
         */
      for (int x=currentMessagePage*linesPerPage;
        x<currentMessagePage*linesPerPage+numberOfMessagesDisplayed;x++)
      {  
	/* On click of "Read" button
         */
        if (e.target==readMessageButton[x])
        { 
          lockButtons(true);
          clearCommands();
          add(commands,commandsConstraints,
            new Label("Retrieving message                             "
                     +"                                               "),0,0);
          commands.paintAll(commands.getGraphics());
          try 
          { 
            if (c.folderName().equals("drafts"))
	    {
              c.use();
              getDraft(c.messageID(x));
              c.deleteMessage(c.messageID(x));
              currentScreen = "compose";
              mainLayout.show(main, currentScreen);  
              listMessages(c.folderName(),0,true);
              listFolders(0,true);
              c.done();
              clearCommands();
              add(commands,commandsConstraints,backButton,0,0);
              add(commands,commandsConstraints,clearButton,1,0);
              add(commands,commandsConstraints,saveDraftButton,2,0);
              add(commands,commandsConstraints,sendButton,3,0);     
            }
            else
	    {
              c.use();
              readMessage(c.messageID(x),true);
              currentScreen = "read";
              mainLayout.show(main,currentScreen);
              if (!c.read(x))
	      {
                listMessages(c.folderName(),currentMessagePage,true);
                listFolders(currentFolderPage,true);
              }
              c.done();
              clearCommands(); 
              add(commands,commandsConstraints,backButton,0,0);
              add(commands,commandsConstraints,replyButton,1,0);
              add(commands,commandsConstraints,forwardButton,2,0);
              add(commands,commandsConstraints,deleteButtonR,3,0);
              add(commands,commandsConstraints,saveButtonR,4,0);
	    }
          } 
          catch (IOException e9) 
          { 
            clearCommands();
            add(commands,commandsConstraints,selectAllButton,0,0);
            showSelectFunctionButtons(messagesSelected()>0,1);
            error();
          }
          lockButtons(false);    
          break;
        }

	/* On click of "Select" button
         */
        else if (e.target==selectMessageButton[x])
        {
          if (messageSelected[x]) 
          {
            unselectMessage(x);
            if (messagesSelected()==0)
              showSelectFunctionButtons(false,0);
          }
          else 
          {
            selectMessage(x);
            showSelectFunctionButtons(true,1);
          }
          break;
        }
      }
    }

    /* The array of buttons with a list of addresses
     */
    else if (currentScreen.equals("addresses"))
    {
      /* Iterate through list of addresses checking status of buttons on each
       */
      for (int x=currentAddressPage*linesPerPage;
        x<currentAddressPage*linesPerPage+numberOfAddressesDisplayed;x++)
      {  
	/* On click of "Edit" button
         */
        if (e.target==addressEditButton[x])
        {
	  /*  If the address is not yet in edit mode
	   */
          if (addressEditButton[x].getLabel().equals("Edit"))
          {
            addressEditButton[x].setLabel("Save");
            lockButtons(true);
            add(addressesPanel,aConstraints,editNickname = 
              new TextField(c.nickname(x),9),2,x+1,1,1,0,0,0,0,NO,NW,0,6,0,6);
            editNickname.setForeground(Color.black);
            add(addressesPanel,aConstraints,editFullname = 
              new TextField(c.fullname(x),smallApplet?13:19),3,x+1);
            editFullname.setForeground(Color.black);
            add(addressesPanel,aConstraints,editAddresses = 
              new TextField(c.addresses(x),smallApplet?13:19),4,x+1);
            editAddresses.setForeground(Color.black);
            addressesPanel.remove(nickname[x]);
            addressesPanel.remove(fullname[x]);
            addressesPanel.remove(addresses[x]);
            for (int y=0;y<c.numberOfAddresses();y++)
            {
              addressDeleteButton[y].disable();
              if (addressEditButton[y].getLabel().equals("Edit")) addressEditButton[y].disable(); 
            }
            addressesPanel.paintAll(addressesPanel.getGraphics());
            editNickname.requestFocus();
            if (c.fingerprints(x).length()>0)
	    {
              if (smallApplet) 
                statusBar(spaces+"Pub key fingerprint: "+c.fingerprints(x)+spaces); 
              else statusBar(spaces+"Public key fingerprint: "+c.fingerprints(x)+spaces);
            }
            break;
          }
  
          /*  If the address is already in edit mode.
           */
          else if (addressEditButton[x].getLabel().equals("Save"))
          {
            String newNickname = editNickname.getText().trim();
            if (newNickname.equals(c.nickname(x)) && editFullname.getText().equals(c.fullname(x)) 
              && editAddresses.getText().equals(c.addresses(x)))
	    {
              clearCommands();                 
              add(commands,commandsConstraints,newAddressButton,0,0);
              add(commands,commandsConstraints,showFingerprintButton,1,0);
              commands.paintAll(commands.getGraphics());
              try
	      {
                listAddresses(currentAddressPage,false);
              } catch (IOException e1) { /* Can't happen */ }
              lockButtons(false);
              return true;
            }
            else if (newNickname.length()==0)
            {
              statusBar(spaces+"You must enter a nickname"+spaces);
              ignoreLostFocus = true;
              editNickname.requestFocus();
              return true;
            }
            else if (newNickname.length()>9)
            {
              statusBar(spaces+"Nicknames must be nine characters or less"+spaces);
              ignoreLostFocus = true;
              editNickname.requestFocus();
              return true;
            }
            else if (editFullname.getText().indexOf('\\')!=-1)
	    {
              statusBar(spaces+"Cannot use \\ in name"+spaces);
              ignoreLostFocus = true;
              editFullname.requestFocus();
              return true;
            }
            else if (validEmailAddress(editAddresses.getText().trim()))
	    {
              /*  Check to be sure nickname isn't a duplicate
               */
              for (int a=0;a<c.numberOfAddresses();a++)
	      {   
                if (c.nickname(a).equals(newNickname) && a!=x) 
	        {
                  statusBar(spaces+"That nickname already exists!"+spaces);
                  ignoreLostFocus = true;
                  editNickname.requestFocus();
                  return true;
                }
              }      

              addressEditButton[x].disable();
              clearCommands();                 
              add(commands,commandsConstraints,
                new Label("Writing changes                                "
                         +"                                               "),0,0);
              commands.paintAll(commands.getGraphics());

              /*  Delete the old address and add the new one.
               */
              try 
              { 
                c.use();
                c.deleteAddress(c.nickname(x));
                boolean successful = c.addAddress(newNickname,
                  editFullname.getText().trim(),editAddresses.getText().trim());
                if (successful)
	        {
                  listAddresses(currentAddressPage,true);
                  lockButtons(false);
                }
                else 
                {
                  addressEditButton[x].enable();
                  editAddresses.requestFocus();
                }
                c.done(); 
              } catch (IOException e10) 
              {
                try
		{ 
                  listAddresses(currentAddressPage,false);
                } catch (IOException none) { /* can't happen */ }
                lockButtons(false);
                error();
              }
              clearCommands();                 
              add(commands,commandsConstraints,newAddressButton,0,0);
              add(commands,commandsConstraints,showFingerprintButton,1,0);
            }
            else
	    {
              editAddresses.requestFocus();
              statusBar(spaces+"Bad email address"+spaces);
            }
          }
        }

	/* On click of "Delete" button
         */
        else if (e.target==addressDeleteButton[x])
        {
          markForDelete = x;
          clearCommands();
          lockButtons(true);
          confirmLabel.setText("Are you sure you want to delete this address?");
          add(commands,commandsConstraints,confirmLabel,0,0);
          add(commands,commandsConstraints,confirmDeleteButton,1,0); 
          add(commands,commandsConstraints,cancelDeleteButton,2,0);  
          commands.paintAll(commands.getGraphics()); 
          break;
        }
      }
    }    
    commands.paintAll(commands.getGraphics());
    return true;
  }


  public boolean lostFocus(Event e, Object o)
  {
     /* Exit if still on login screen
      */
     if (currentScreen.equals("login")) return true;

     /* This takes care of substituting actual addresses for nicknames 
      * on the compose screen, and checks for bad email addresses
      */
     else if (e.target==headerField[0]||e.target==headerField[1]||e.target==headerField[2])
     {
       TextField text = (TextField)e.target;
       text.setText(text.getText().trim());
       if (text.getText().length()>0)
       {
         for (int x=0; x<c.numberOfAddresses(); x++)
         {
           if (text.getText().equalsIgnoreCase(c.nickname(x)))
           {
             if (c.fullname(x).length()>0) text.setText("\""+c.fullname(x).trim()+"\" <"+c.addresses(x).trim()+">");
             else text.setText(c.addresses(x).trim());
             break;
             //return true;
           }
         }
         boolean allLettersAndDigits = true; 
         char[] addrChr = new char[text.getText().length()];
         addrChr = text.getText().toCharArray();
         for (int c=0;c<text.getText().length();c++)    
	 {
           if (!Character.isLetterOrDigit(addrChr[c]) && addrChr[c]!='_' && addrChr[c]!='-' && addrChr[c]!='.')
	   {
             allLettersAndDigits = false;
             break;
           }
         }
         if (allLettersAndDigits)
	 {
           text.setText(text.getText()+"@"+c.domain());