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<?php
/**
* Elgg captcha plugin graphics file generator
*
* @package ElggCaptcha
*/
global $CONFIG;
$token = get_input('captcha_token');
// Output captcha
if ($token) {
// Set correct header
header("Content-type: image/jpeg");
// Generate captcha
$captcha = captcha_generate_captcha($token);
// Pick a random background image
$n = rand(1, $CONFIG->captcha_num_bg);
$image = imagecreatefromjpeg($CONFIG->pluginspath . "captcha/backgrounds/bg$n.jpg");
// Create a colour (black so its not a simple matter of masking out one colour and ocring the rest)
$colour = imagecolorallocate($image, 0,0,0);
// Write captcha to image
//imagestring($image, 5, 30, 4, $captcha, $black);
imagettftext($image, 30, 0, 10, 30, $colour, $CONFIG->pluginspath . "captcha/fonts/1.ttf", $captcha);
// Output image
imagejpeg($image);
// Free memory
imagedestroy($image);
}
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