http://research.microsoft.com/asirra/) to add a pleasant image-based HIP for comments
Author: Jon Howell
Version: 1.0
Author URI: http://research.microsoft.com/~howell/
*/
/* Copyright 2007 Jon Howell (contact email : asirra@microsoft.com)
**
** This program is in the public domain.
*/
class AsirraValidator
{
var $inResult = 0;
var $passed = 0;
function AsirraValidator($ticket)
{
global $g_this; // Yuck. Is there a way to have callback methods see my $this without using a global in PHP?
$g_this = $this;
$g_this->dbg = "";
$g_this->dbg .= "
ticket = ".$ticket;
$AsirraServiceUrl = "http://challenge.asirra.com/cgi/Asirra";
$url = $AsirraServiceUrl."?action=ValidateTicket&ticket=".$ticket;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
$resultXml = curl_exec($ch);
curl_close($ch);
$xml_parser = xml_parser_create();
function startElement($parser, $name, $attrs)
{
global $g_this;
$g_this->inResult = ($name=="RESULT");
$g_this->dbg .= "
start ".$name." ir=".$g_this->inResult;
}
function endElement($name)
{
global $g_this;
$g_this->inResult = 0;
$g_this->dbg .= "
end ".$name;
}
function characterData($parer, $data)
{
global $g_this;
$g_this->dbg .= "
cd ir ".$g_this->inResult." data=".$data;
if ($g_this->inResult && $data == "Pass")
{
$g_this->dbg .= "
setting PASS";
$g_this->passed = 1;
}
}
xml_set_element_handler($xml_parser, startElement, endElement);
xml_set_character_data_handler($xml_parser, characterData);
xml_parse($xml_parser, $resultXml, 1);
xml_parser_free($xml_parser);
$g_this->dbg .= "XML: ".$resultXml."
";
}
}
?>