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How does the SecurityManager authorize with JAAS?

843811
843811 Member Posts: 49,851 Green Ribbon
Hello,

I'm using java 1.3 and JAAS, trying to write my own Permission for authorization. How does the SecurityManager know to authorize a method for a Subject? Does the method that I want protected have to explicitly call checkPermission()?

The examples given are always for FilePermission. They show a program calling Subject.doAs() to perform an action as a particular Subject, and they imply that checkPermission() is called by the methods doing the file access.

Thanks

Comments

  • 843811
    843811 Member Posts: 49,851 Green Ribbon
    I think you
    a) create a specific permission class (such as a "canDoThisPermission(String targetMethod)" class)
    b) in your method check that the permission is granted by calling
    checkPermission(new CanDoThisPermission(<methname>))

    be sure your new permission class is being loaded from a trusted location (...lib/ext/... for eg.)

  • 843811
    843811 Member Posts: 49,851 Green Ribbon
    Maybe check out following page with code samples.

    http://www.esus.com/javaindex/j2se/jdk1.2/javasecurity/jaas/jaas.html

    If you can't find the answer, you can post the question there.

    Cheers,
    Joris
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