Re: [Jython-users] Restricting code execution

[David G. <gr...@gm...>]

I have an identical situation - each script I load is in effect a class
definition and each class has two methods that the Java can call.
So what do I do about code the user wrotes outside the methods I am
expecting.  As you say, it might execute something when I am simply loading
the script.

The best answer I have come up with thus far is that I pre-validate the
scripts as I load them - that is, I strip out lines of code that are outside
the functions before I even load the script into the interpreter, when it is
within my control.  Assuming you have  control of the loading event this may
be an option.

2008/12/31 Goundy <go...@gm...>

> Hi dear developers/Users,
>
> I'm writing a java software and planning to embed Jython in it and use
> it as a plugins system.
> I only have one issue, by definition script plugins are scripts that has
> one entry point (ex: plugin_init) and one leaving point (ex:
> plugin_quit). What I want to do exactly is "loading" the script file,
> getting plugin_init, check if it's callable and call it if so. I know
> how to do all of this, but I noticed that if I put python code outside
> of my two functions plugin_init and plugin_quit it's also exectued... I
> know it doesn't really hurt, but I want my modules system to be correct
> in a conception point of view.
> I tried to browse the javadoc of jython, I tried some codes but I didn't
> figured out how to do it, I even don't know if this is possible.
> So to summarize the question is: How  to load a script file and build
> its symbols references without "executing" its code ?
> Please give me some hints :)
> Thank you
>
> Regards
>
>
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-- 
David Griffin