[jboss-jira] [JBoss JIRA] Assigned: (JBAOP-762) Permission Issue (with AOP) in Applet Environment

[Flavia Rainone (JIRA)]

     [ https://jira.jboss.org/browse/JBAOP-762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Flavia Rainone reassigned JBAOP-762:
------------------------------------

    Assignee: Flavia Rainone


> Permission Issue (with AOP) in Applet Environment
> -------------------------------------------------
>
>                 Key: JBAOP-762
>                 URL: https://jira.jboss.org/browse/JBAOP-762
>             Project: JBoss AOP
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 1.5.6.GA
>            Reporter: Howard Gao
>            Assignee: Flavia Rainone
>             Fix For: 1.5.7.GA
>
>         Attachments: applet-aop.tar.gz, java_console.out
>
>
> Summary:
> JBM client packed in an Applet. The client gets "java.util.PropertyPermission legacyParsing read" AccessControlException when trying to create a JMS connection.
> Possible Reason:
> The AccessControlContext was changed after JBM going through some AOP stack.
> AOP version 1.5.6.GA
> To reproduce this issue, I did the following:
> 1. create a simple applet. The applet create a button "DoWork". 
> 2. Pressing "DoWork" will cause the applet to do a jndi lookup for a connection factory and call creationConnection() on the factory.
> In createConnection(), there is a method call on an AOP instrumented object:
> createConnection()
> {
>    ...
>    String wok = aopObj.doSomeWork("GoodWook");
>    ...
> }
> The aopObj is a simple class with one method:
> public class FakeInvokerLocatorWithAOP implements Serializable
> {
>     
>    private static final long serialVersionUID = 2223089961647029627L;
>    public String doSomeWork(String work)
>    {
>       return work + " done. : " + System.getProperty("legacyParsing");
>    }
> }
> This class has an advice defined in AOP xml :
>    <aspect class="org.jboss.jms.client.container.SimpleAspect" scope="PER_VM"/>
>    <bind pointcut="execution(* org.jboss.jms.client.delegate.FakeInvokerLocatorWithAOP->doSomeWork(..))">
>       <advice name="handleDoSomeWork" aspect="org.jboss.jms.client.container.SimpleAspect"/>
>    </bind>
> The Advice class SimpleAspect is very simple:
> public class SimpleAspect {
> 	public Object handleDoSomeWork(Invocation inv) throws Throwable
> 	{
>         String res = (String)inv.invokeNext();
>         
>         res = res + " with AOP";
>         
>         System.out.println("-----res: " + res);
> 	    
>         return res;
> 	}
> }
> So if the call of aopObj.doSomeWork("GoodWook") is successful, the returned value should be something like:
> "GoodWook done. " + <value of sys prop 'legacyParsing'> + " with AOP"
> But the real situation is that I got the following exception: 
> java.security.AccessControlException: access denied (java.util.PropertyPermission legacyParsing read)
> Debugging shows that once the execution goes inside SimpleAspect.handleDoSomeWork(), the system's AccessControlContext has changed, but the SecurityManager remained same as before. This changed context doesn't allow the above permission.
> I also checked the SimpleAspect's ProtectionDomain by 
> PermissionCollection pcol = this.getClass().getProtectionDomain().getPermissions();
> And this proctection domain's permissions implies the above permission, namely
> pcol.implies(new PropertyPermission("legacyParsing", "read")) returns true.
> Note: you may need to add the following permission to your java.policy in order to get protectionDomain at this point.
> permission java.lang.RuntimePermission "getProtectionDomain";

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