Subj : Re: liveconnect...
To   : Brendan Eich
From : Oystein Hallaraker
Date : Thu Jul 15 2004 12:17 pm

Brendan Eich wrote:
> Oystein Hallaraker wrote:
> 
>> Hi! I am looking at liveconnect. When a javascript calls a java method 
>> I would like to print out the origin of the javascript. I know that 
>> the ScriptSecurityManager sits on this info, but how do I get it? 
>> LiveConnect is written in C and does not implement XPCOM, and 
>> therefore I cannot use XPCOM to access the ScriptSecurityManager...
> 
> 
> 
> And yet it all somehow works.  Imagine (perhaps this is true for your 
> embedding) no C++, no XPCOM, and no ScriptSecurityManager.  The "origin" 
> of a script is just its filename.  See jsdbgapi.h's JS_GetScriptFilename 
> and related APIs.
> 
> /be

Thanks for the help.

The problem is that to use JS_GetScriptFilename() I have to have the 
JSScript. I am in jsj_JavaInstanceMethodWrapper(JSContext *cx, JSObject 
*obj, uintN argc, jsval *argv, jsval *vp)  (liveconnect/jsj_method.c) 
and I cannot find a way to get the JSScript from the JSContext. I 
thought there was an one to one relationship between JSContexts and 
JSScripts, by that I mean: A JSContext will only be executing one 
JSScript at a time. Therefore I thought it would be possible to get the 
current JSScript from the JSContext... I have tried accessing it through 
the JSStackFrame in JSContext, but it only returns null... I also tried 
calling JS_StackFramePrincipals (jsdbgapi.h) without any luck...

Oystein

.