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Qu?bec - 29 Nov 2003 12:31 GMT

Hi Great working hard Gurus,

Is there a way to script something for visitors on your web site know you
are on line?

Like ICQ stuff, but I dont want to rely on Icq. Maybe an applet. An
application that would be pinged by an Applet? Any suggestion?

Jean

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Chris Smith - 29 Nov 2003 14:37 GMT

Québec wrote:

> Hi Great working hard Gurus,
>
[quoted text clipped - 3 lines]
> Like ICQ stuff, but I dont want to rely on Icq. Maybe an applet. An
> application that would be pinged by an Applet? Any suggestion?

(Incidentally, if you're looking for a "script" as in JavaScript, you're
in the wrong place.)

Hmm. Do you have a static IP address? If not, then you'll need to
communicate through something that you can find. So you'd want to have
a server somewhere that records the information. At that point, yes you
could manage this. You'd have to have something running at a known
location listening on a socket to let people know that you're online,
and have something on your own system notify the something at the known
location when you are online. The something at a known location would
probably also need to occasionally check the something on your own
system to ensure that it's still online.

If an applet is involved, be aware that it can only communicate with its
own web server, unless you jump through security loopholes.

Sorry to not be more specific; but you have a lot of design choices to
make before you are close to being able to get implementation advice.

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Chris Smith - Lead Software Developer/Technical Trainer
MindIQ Corporation

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Qu?bec - 29 Nov 2003 18:42 GMT

Well,

JavaScript can only check if somebody reads the page online
(document.onLine).
Can I communicate with the applet ("running at a known location
listening on a socket to let people know that you're online" on a page in my
web (see below)?

From my computer I can get the inetaddress event if it changes all the time.
InetAddress localHostAddress
= InetAddress.getLocalHost();

I could ask peopple to use mail (they know that I am 'there' at this very
'sacred' instant :-) because they can expect an immediate answer.

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