From: "guillaume.dorchies" <guillaume.dorchies@...>
Date: 2004-05-07T05:58:57+09:00
Subject: use the ruby's stack for security

Hello,

I need to play with the internal stack of the interpreter like this

class A
  def foo2
    C.new.foo
  end
end

class B
  def foo2
    C.new.foo
  end
end

class C
  def foo
    klass=who_is_calling_me
    if klass == A
       puts 'GOOD'
    elsif klass == B
       puts 'BAD'
    end   
  end 
end

and now I want 

A.new.foo2
>GOOD
B.new.foo2
>BAD

the method who_is_calling_me must use the internal stack but how ??? here
I use one level but in a real case there is a lot of levels 
I can't send this information via call to method

I need this mechanisme to implement a security system.
A logon session have all the informations for the security and all the
objects called by the loggon session can use this informations to check
security 

Anybody have an idea or it's impossible

Thank you
Bye