Such an app would rock the free world, or at least my neighborhood. I would love to certify that other servers trying to dump large XML files directly into my DB that they are who they say they are.
<p>
"I have heard of a DOM<br>
who forms documents so beautifully<br>
that if he only speaks it's <!DOCTYPE><br>
servers give root to him.<br>
If I am numb upon the console,<br>
while silence blossoms like tumors on XEmacs,<br>
it is because I hear the sound<br>
of a POST <br>
cross the firewall<br>
and utter '<?xml version="1.0"?>'<br>
outside my door."<p>
<i>with apologies to Leonard Cohen</i>