Accessing Signed Applet Method From Javascript

Hi All,
In my intranet application i have to retrive the mac addres of the client using the applet. I have to capture the MAC Address and set it as a hidden value in the jsp page.
I have used the signed applet and able to retrive the mac address of the client using IE but I am not able to do the same on NN 7.1
Below is my javascript and the applet tag syntax, please help me if i am wrong anywhere
function mac()
var mval=document.myApplet.getWinMACAddress()
alert("addres" +mval)
document.loginform.js_value.value=mval
and the applet tag in my jsp page is
<applet code ="SignedAppletDemo.class" codebase="http://mysouthasia/AcadResource/jsp/" archive="SSignedApplet.jar" width=1 height=1 align=center name="myApplet" >
</applet>
Thanks in Advance

Since getWinMACAddress( ) seems to work just fine for IE, is there an equivalent for NN7.1?
What happens if I run Opera instead, and on a Linux system? Or Safari on OS X? Obviously getWinMACAddress( ) isn't going to work for that.
I really don't understand why so many Asian programmers get "Find the MAC address of..." as a homework assignment. There are many reasons why it isn't really practical to do so, and for examples, just search this forum for MAC addresses. Lots and lots of examples and counter examples.

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Invoking Applet methods from Javascript for Netscape 6

Hi,
I am trying to invoke an applet method from javascript, but it is failing with Netscape 6 browser:
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function test(form)
var i = document.myapplet.getname();
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Hi All,
I am totally new to development. And I got struck in calling a controller method from javascript function.
I have no idea about ajax and all those things. Please can anyone help me to solve this issue!
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Hi,
As I know, you can use jQuery to do this, here is an example.
Example of your Controller Method.
[HttpPost] // can be HttpGet
public ActionResult Test(string id)
bool isValid = yourcheckmethod(); //.. check
var obj = new {
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If you have further issues, I would suggest you move to MVC forum, it is appropriate and more experts will assist you.
Best Regards,
Jambor
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Accessing a public method from javascript in an applet!!!

Hi!!
I'm have an applet (named say applet.class) in an html page that has a public method like this....
public void doShowFrame()
Frame frame = new frame();
frame.setVisible (true);
What I want to do is to call that method with javascript, I've tried to do it like this...
function show(){
applet.doShowFrame();
But when i press the button that launch the java scipt the browser says
'applet' is unidentified...
What's wrong, what can I do??

http://www.google.com/search?q=applet+javascript+communication&sourceid=opera&num=0&ie=utf-8&oe=utf-8
how hard was that? seriously.

Signed applets called from javascript - how/where to load policy file?

I'm running into some apparently well-known problems with signed applets accessing a client machine's hard drive.
So, I can get things to work if I place the following two lines in my 'local' JDK installation:
permission java.io.FilePermission "${user.home}/x.properties", "read,write";
permission java.util.PropertyPermission "user.home", "read";These let me a) read the user's home directory and b) read/write a file that's located there.
What I don't want to do is edit the java.policy file, but I'm having problems loading a separate policy file. The app server we run with our product is jetty, and I'm assuming I would be passing in the '-Djava.security.policy=='filename' with the other jetty start-up parameters- is this a correct assumption? And, what path do I give for the file, will I need to put it somewhere in the .war file we distribute, or in the JDK installation on the server? If it's on the server, will client machine's know about these extra rights?
I'd REALLY appreciate any help I could get on this...
thanks in advance,
+0^^

Maybe you didn't realize but my previous post was sarcastically ment:
"hello SUN security stop bugging me in writhing this malicious program"
and
"hello SUN security, I'm a good boy now trust what I'm doing"
Are in a practical sense exactly the same.
SUN should either remove the stack check or the doprivileged. The stack check takes up
valuable resources for nothing since a malicious program can easily circumvent that.
Your post about a malicious user abusing your (CA) signed applet to ruine someone's
system is correct, it would not be difficult. A CA signed applet will not even ask a user to
trust or not. This is one of the reasons we have the usepolicy in affect, but this cannot be
used on "grandma's old PC" since it's too complicated for users to do such things.
YOU seem to be the one to blame, not the hacker! (The user accepted YOUR
certificate!).Actually you are to blame, because you made software that exposes a vonurability
other people can take advantage of.
what you can do before calling the doprivileged private method is check the call stack.
So your signed applet has a public method checking the callstack, if this lookes OK
that method will call the private doprivileged method.
Here is the example
package t;
import java.util.Properties;
import java.applet.Applet;
public class test extends Applet {
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               System.out.println("this is the stack");
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                    for (int i=0; i<stack.length; i++) {
                         System.out.println("file: " + stack.getFileName() + " method: " + stack[i].getMethodName() + " class: " + stack[i].getClassName() + " at " + new Integer(i).toString());
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                    // a good hacker can just create it's own package named t and take advantage of this method
                    // if this method was started from the same package there is no reason to make this method
                    // public, protected would work.
                    // there must be a better way to check if this method was called by "your" or "trusted" code
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                         dosomePrivileged();
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Call Applet method from JavaScript, tiny test program works... SOMETIMES!?

I have an embedded Applet in a web page, and I am trying to directly call a method in that Applet from the same page, using JavaScript.
Here is the complete Applet:
import java.applet.Applet;
public class Test extends Applet {
public String test() {
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}Here is the complete web page:
<HTML>
<HEAD><TITLE>Applet Invocation test</TITLE></HEAD>
<BODY>
<APPLET CODE="Test" WIDTH=10 HEIGHT=10 NAME="test"></APPLET>
<HR>
<SCRIPT>
document.write( "JavaScript is working<br>" );
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</SCRIPT>
</BODY>
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PS I am using Windows ME and IE 6

Thanks for the reply, I appreciate it. I have another question, if you don't mind... here is what my new test web page looks like:
<HTML>
<HEAD>
<TITLE>Applet Invocation test</TITLE>
<SCRIPT>
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</HEAD>
<BODY onLoad="testFunc()">
<APPLET CODE="Test" WIDTH=10 HEIGHT=10 NAME="test">
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Call applet methods from Javascript

Hello,
If I call applet method like :
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alert(pp);
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Thanks

Hi Paul,
(1)Seems to be your Java Runtime Environment path is still setted for JRE 1.3.0_01 and not for 1.3.1. So pelase go to the
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(2)<OBJECT> tag won't work for Netscape. You can only use <APPLET> or <EMBED> tag for Netscape.
Hope this will help you.
Anil
Developer Technical Support
Sun Microsystems
http://www.sun.com/developers/support

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Hi,
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Any possible suggestions as to why its happening?

part of my javascript code is pasted below.
I tried using applet tag instaed just in case but keep gettin the same message.'Not an object"
</HEAD>
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<SCRIPT LANGUAGE="javascript">
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var str = document.location.search;
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Hi,
I am currently trying to invoke a public method coded in a swing applet from my javascript.
As per the documentation and discussion at this site,tried to workaround by using document.AppletName.MethodName.
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Hi,
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Problem with accessing Signed Applet from javascript method

Hi,
I am facing the following problem while accessing Signed Applet from javascript method.
java.security.AccessControlException: access denied (java.io.FilePermission c:/temp.txt read)
     at java.security.AccessControlContext.checkPermission(Unknown Source)
     at java.security.AccessController.checkPermission(Unknown Source)
     at FileTest.testPerm(FileTest.java:19)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
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     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at sun.plugin.javascript.JSClassLoader.invoke(Unknown Source)
     at sun.plugin.com.MethodDispatcher.invoke(Unknown Source)
     at sun.plugin.com.DispatchImpl.invokeImpl(Unknown Source)
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I am using jdk1.5 for my development...
Can anyone help to resolve this security issue. Urgent...
Thanks in advance.

Hey thanks. I wasn't able to get it to work with that sample but I did find this very similar code that does allow javascript to call JFileChooser in an applets public method.
java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction()
public Object run(){
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Can any one help me how to call pageflow controller method from JavaScript.\
Thanks.

Accessing a particular pageflow method from Javascript is directly not possible unless we do some real funky coding in specifying document.myForm.action = xyz...Heres what I tried and it did not work as expected: I found another workaround that I will share with you.
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This entire lines of code should do what we want.
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Hi,
I could not find material on how to call a bean method from javascript, any help would be appreciated.
Ralph

Hi,
Basically, I would like to call a method that I have written in the page java bean, or in the session bean, or application bean, or an external bean, from the javascript events (mouseover, on click, etc...) of a ui jsf component. I.e., I would like to take an action when a user clicks in a column in a datatable.
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Greetings In the name of the creator of all things, space, and time. I have a problem with scripting an applet using Javascript (JScript). The problem is as follows: I receive the runtime error - An outgoing call cannot be made since the application is dispatching an input-synchronous call.
I invoke the applet from a JavaScript from within a web page. The applet populates and display a JTable. From the Table I select an element in a row and press a button which kicks off another page. From within the page I called one of the applet's method i.e. _applet.cfquery(window, hastable).
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What is the problem and How do I resolve it? Note: The same code works with Netscape 7.0 with out any problems.
Particulars:
Browser: Internet Explorer 6.0 - Version 6.0.2800.1106C (SP1)
Operating System : Windows 2000 (Service Pack 3)
Scripting Interface: LiveConnect.
Scripting Version: JavaScript (1.5)
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If the javascript to invoke applet.cfquery(window, hastable) happens automatically (onload,...), try adding a button to your page and using that to invoke applet.cfquery(window, hastable). See if waiting until the applet loads and settles down makes a difference.

Accessing Signed Applet Method From Javascript

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