/**
* The constructor generates a Captcha image.
*
* @param int $dotNoise The dot noise level. Default: 100.
* @param int $lineNoise The line noise level. Default: 5.
* @param int $wordLen The length of the Captcha word. Default: 6.
* @param int $timeout The timeout in seconds. Default: 1800.
* @return OSS_Captcha_Image
*/
public function __construct($dotNoise = 100, $lineNoise = 5, $wordLen = 6, $timeout = 1800)
{
parent::__construct();
$captchaDir = OSS_Utils::getTempDir() . '/captchas';
if (!file_exists($captchaDir)) {
mkdir($captchaDir, 0777, true);
}
if (strpos(dirname(__FILE__), 'src/') === false) {
$font = dirname(__FILE__) . '/../../data/font/freeserif.ttf';
} else {
$font = dirname(__FILE__) . '/../../../data/font/freeserif.ttf';
}
$this->setTimeout($timeout)->setWordLen($wordLen)->setHeight(80)->setFont($font)->setFontSize(40)->setImgDir($captchaDir)->setDotNoiseLevel($dotNoise)->setLineNoiseLevel($lineNoise);
return $this;
}
