mirror of
https://github.com/moparisthebest/moparscape.org-smf
synced 2024-11-22 00:32:22 -05:00
79 lines
2.2 KiB
JavaScript
79 lines
2.2 KiB
JavaScript
// This file contains javascript associated with the captcha visual verification stuffs.
|
|
|
|
function smfCaptcha(imageURL, uniqueID, useLibrary, letterCount)
|
|
{
|
|
// By default the letter count is five.
|
|
if (!letterCount)
|
|
letterCount = 5;
|
|
|
|
uniqueID = uniqueID ? '_' + uniqueID : '';
|
|
autoCreate();
|
|
|
|
// Automatically get the captcha event handlers in place and the like.
|
|
function autoCreate()
|
|
{
|
|
// Is there anything to cycle images with - if so attach the refresh image function?
|
|
var cycleHandle = document.getElementById('visual_verification' + uniqueID + '_refresh');
|
|
if (cycleHandle)
|
|
{
|
|
createEventListener(cycleHandle);
|
|
cycleHandle.addEventListener('click', refreshImages, false);
|
|
}
|
|
|
|
// Maybe a voice is here to spread light?
|
|
var soundHandle = document.getElementById('visual_verification' + uniqueID + '_sound');
|
|
if (soundHandle)
|
|
{
|
|
createEventListener(soundHandle);
|
|
soundHandle.addEventListener('click', playSound, false);
|
|
}
|
|
}
|
|
|
|
// Change the images.
|
|
function refreshImages()
|
|
{
|
|
// Make sure we are using a new rand code.
|
|
var new_url = new String(imageURL);
|
|
new_url = new_url.substr(0, new_url.indexOf("rand=") + 5);
|
|
|
|
// Quick and dirty way of converting decimal to hex
|
|
var hexstr = "0123456789abcdef";
|
|
for(var i=0; i < 32; i++)
|
|
new_url = new_url + hexstr.substr(Math.floor(Math.random() * 16), 1);
|
|
|
|
if (useLibrary && document.getElementById("verification_image" + uniqueID))
|
|
{
|
|
document.getElementById("verification_image" + uniqueID).src = new_url;
|
|
}
|
|
else if (document.getElementById("verification_image" + uniqueID))
|
|
{
|
|
for (i = 1; i <= letterCount; i++)
|
|
if (document.getElementById("verification_image" + uniqueID + "_" + i))
|
|
document.getElementById("verification_image" + uniqueID + "_" + i).src = new_url + ";letter=" + i;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// Request a sound... play it Mr Soundman...
|
|
function playSound(ev)
|
|
{
|
|
if (!ev)
|
|
ev = window.event;
|
|
|
|
popupFailed = reqWin(imageURL + ";sound", 400, 120);
|
|
// Don't follow the link if the popup worked, which it would have done!
|
|
if (!popupFailed)
|
|
{
|
|
if (is_ie && ev.cancelBubble)
|
|
ev.cancelBubble = true;
|
|
else if (ev.stopPropagation)
|
|
{
|
|
ev.stopPropagation();
|
|
ev.preventDefault();
|
|
}
|
|
}
|
|
|
|
return popupFailed;
|
|
}
|
|
} |