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Larry,
I think what you may not be understanding is that your PHP script
doesn't run on the PC. It's running on the web server, and only the
output is being sent to the browser. So using PHP's exec() will work to
get files on the server (because that's where it's running) but can't
access anything that's not available to the server. (Though, if the PC
is available to the server, such as if you can access it via /QNTC,
that's another story.)
Therefore, the next idea that might pop into your mind... since PHP is
communicating with the web browser, why not have the web browser return
this information to your PHP script? That makes a lot more sense -- but
unfortunately, this also won't work because (as others have said) it
would be a huge security violation. Imagine if any web site on the
internet could just start running any DOS command it wanted on your PC
when you visit their web page. (...shudder...) It doesn't matter at
all if this is "solicited" or not!
What WOULD work, though, as Paul has already pointed out, is a signed
Java applet. This is a piece of Java code that gets downloaded from
your server into the browser, and then it runs on the PC. It has to be
cryptographically signed to prove it's really made by you in order to be
able to do things like run DOS commands -- that's why it must be a
"signed" applet vs a regular applet. With this approach, the first time
they run it, the user will be asked whether they trust your site to run
an application (the applet) on the PC. Once they agree, it will be able
to do what you want.
The other possible approach is to run some sort of 'command server' on
the PC. For example, one that implements the SSH or REXEC protocol
could be installed on each PC, and you could submit commands to that
server. This would be similar to the original approach you tried to use
where you send a DOS command and it runs and returns the output to your
PHP script. But, it would involve the user installing software on the
PC, and you would need to make sure that it's installed and secured
properly. As with ANY tool that can run a command on the PC, security
is a huge, HUGE, concern -- so careful planning is required here.
On 12/4/2014 4:08 PM, Larry Kleinman wrote:
It is not unsolicited. The website displays a jpg and i want to give the
user the ability to click something that will open that jpg in mspaint
Sent from my iPhone
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