mirror of
https://github.com/gtbu/Typesetter-5.3-p8.git
synced 2024-11-11 01:44:02 +01:00
93 lines
2.2 KiB
PHP
93 lines
2.2 KiB
PHP
<?php
|
|
defined('is_running') or die('Not an entry point...');
|
|
|
|
class AntiSpamMath{
|
|
var array $operators = array(1=>'plus',2=>'minus',3=>'divided by',4=>'times');
|
|
|
|
/**
|
|
* @throws Exception
|
|
*/
|
|
function Form($html){
|
|
$operator_key = array_rand($this->operators);
|
|
$operator = $this->operators[$operator_key];
|
|
|
|
$asm_1 = random_int(1,10);
|
|
$asm_3 = random_int(1,10);
|
|
if ($operator_key == 3) {
|
|
$asm_1 = $asm_1 * $asm_3;
|
|
}
|
|
|
|
|
|
$inputs = array();
|
|
$inputs[] = ' <input type="hidden" name="asm_1" value="'.$asm_1.'" /> ';
|
|
$inputs[] = ' <input type="hidden" name="asm_2" value="'.$operator_key.'" /> ';
|
|
$inputs[] = ' <input type="hidden" name="asm_3" value="'.$asm_3.'" /> ';
|
|
shuffle($inputs);
|
|
|
|
if ( !ob_start('ob_gzhandler') ) {
|
|
ob_start();
|
|
}
|
|
echo implode('',$inputs);
|
|
|
|
echo '<span class="anti_spam_math">';
|
|
echo $asm_1;
|
|
echo ' ';
|
|
echo gpOutput::GetAddonText($operator);
|
|
echo ' ';
|
|
echo $asm_3;
|
|
echo ' ';
|
|
echo gpOutput::GetAddonText('equals');
|
|
echo '<input type="text" name="asm_4" value="" size="4" maxlength="6" /> ';
|
|
echo '</span>';
|
|
$html .= ob_get_clean();
|
|
|
|
return $html;
|
|
}
|
|
|
|
function message_alert($msg) {
|
|
echo "<script>window.alert('$msg');</script>";
|
|
}
|
|
|
|
function Check($passed){
|
|
$message = gpOutput::SelectText('Sorry, your answer to the verification challenge was incorrect. Please try again.');
|
|
|
|
if( empty($_POST['asm_1']) || empty($_POST['asm_2']) || empty($_POST['asm_3']) ){
|
|
$this->message_alert($message . ' (1)');
|
|
return false;
|
|
}
|
|
|
|
$operator_key = $_POST['asm_2'];
|
|
if( !isset($this->operators[$operator_key]) ){
|
|
$this->message_alert($message . ' (2)');
|
|
return false;
|
|
}
|
|
|
|
switch($operator_key){
|
|
case 1:
|
|
$result = $_POST['asm_1'] + $_POST['asm_3'];
|
|
break;
|
|
case 2:
|
|
$result = $_POST['asm_1'] - $_POST['asm_3'];
|
|
break;
|
|
case 3:
|
|
$result = $_POST['asm_1'] / $_POST['asm_3'];
|
|
break;
|
|
case 4:
|
|
$result = $_POST['asm_1'] * $_POST['asm_3'];
|
|
break;
|
|
}
|
|
|
|
$compare = $_POST['asm_4'];
|
|
//message('result: '.$result.' vs submitted: '.$compare);
|
|
|
|
if( $compare != $result ){
|
|
$this->message_alert($message . ' (3)');
|
|
return false;
|
|
}
|
|
|
|
//message('passed');
|
|
|
|
return $passed;
|
|
}
|
|
|
|
}
|