On Fri, 15 Apr 2005 09:52:41 -0400, James Carroll <[EMAIL PROTECTED]> wrote:
>I don't think Jython will help much here... you would have to embed >jython in your applet which makes it big, which makes it take longer >to download... (or you could install it ahead of time on each client.) > >I asked my friend who did some smartcard authentication at a previous >job... and in his case the card had an LCD readout that gave a >different key every minute, and the user had to look at that number, >and type it in for access. To automate this, with a card reader, >there could be a (barcoder-scanner-like) app on each client that would >emulate typing on the keyboard when the card was read. The user would >have to click on a text field, then scan their card and the number >would show up automatically. One step further... some javascript >could possibly get the keyboard events as long as the page had input >focus, and if it sees a smart-card key like sequence of keystrokes, >then submit a form from a hidden IFrame.... > >So, short of writing your own plug-in extension for each different >browser, I'm not sure you're going to be able to access the client >hardware from a client-side web page. Either way (plug-in or java >applet with privileges) your user will have to agree to give access to >the hardware. > >-Jim I wonder if anyone has written a safe proxy for this kind of purpose, so that any browser would see just ordinary html at a particular url but would then be viewing html either passed through from a particular server or synthesized for for the local access part, which it could do arbitrarily, depending on its user/privilege status. [BTW, note reason why top-posts scramble things eventually. Please reconsider ;-)] > >On 4/15/05, Philippe C. Martin <[EMAIL PROTECTED]> wrote: >> Neil, >>=20 >> Would Jpython let me do that ? >> Would java let me call an external Python script - which in turn would >> access my device ? >>=20 >> Thanks >>=20 >> Philippe >>=20 >>=20 >> Neil Hodgson wrote: >>=20 >> > Philippe: >> > >> >> Since I need to access a local/client device from the page and >> >> that I wish to be cross-platform; does that mean Java is my only >> >> way out ? See comment above. >> > >> > Java is designed to be safe and not allow access to client devices. >> > There is a mechanism where you can attempt to ask for permission from >> > Java but it looked complex to me and I doubt many browsers will >> > cooperate. They have often locked security down to prevent this sort of >> > access. >> > >> > Neil >>=20 >> -- >> http://mail.python.org/mailman/listinfo/python-list >>=20 >> Regards, Bengt Richter -- http://mail.python.org/mailman/listinfo/python-list
