<?php
session_start();
LBD_HttpHelper::FixEscapedQuerystrings();
LBD_HttpHelper::CheckForIgnoredRequests();
// There are several Captcha commands accessible through the Http interface;
// first we detect which of the valid commands is the current Http request for.
if (!array_key_exists('get', $_GET) || !LBD_StringHelper::HasValue($_GET['get'])) {
LBD_HttpHelper::BadRequest('command');
}
$commandString = LBD_StringHelper::Normalize($_GET['get']);
$command = LBD_CaptchaHttpCommand::FromQuerystring($commandString);
switch ($command) {
case LBD_CaptchaHttpCommand::GetImage:
GetImage();
break;
case LBD_CaptchaHttpCommand::GetSound:
GetSound();
break;
case LBD_CaptchaHttpCommand::GetValidationResult:
GetValidationResult();
break;
default:
LBD_HttpHelper::BadRequest('command');
break;
}
// Returns the Captcha image binary data
function GetImage()
{
// saved data for the specified Captcha object in the application
$captcha = GetCaptchaObject();
