Hi,
How can I create an instance of a compoent that implements
nsISecurityCheckedComponent . I can not access Components property when I do
not enable UniceralXPCOMConnect
//netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
// don't enable
obj = Components.classes[cid].createInstance(); // this fails
Bye,
Matra
"Boris Zbarsky" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> matra wrote:
>> - is it possible to enable UniversalXPConnect for internet pages?
>
> Yes, if you sign them. If you're not able or not willing to do this, we
> can't trust them enough to give them free run of the user's machine, of
> course.
>
>> - is it possible to grant JavaScript access to just specific XPCOM
>> component instead of granting access to all components with
>> UniversalXPConnect (UniversalXPConnect looks like a very dangerous beast)
>
> If you control the XPCOM component, then yes. Depending on what you mean
> by "grant JavaScript access to" you want some combination of the
> following:
>
> 1) Implementing nsISecurityCheckedComponent (to allow access to specific
> properties or methods).
> 2) Implementing nsIClassInfo with the right magic flags (claiming to be a
> DOM
> class?). This will, for example, allow same-origin access to
> properties and
> methods unless something else overrides that access level.
> 3) Installing an accessor (constructor or service accessor?) for your
> component
> on Window objects. For example, see how XMLHttpRequest used to work
> before
> it got moved into the core code...
>
>> - is there any other extension technology available, which would not
>> require UniversalXpConnect. For example:
>> - creating plugin object (how?)
>
> Yes. See <http://www.mozilla.org/projects/plugins/npruntime.html>.
>
> -Boris
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