public function build($name, array $options = [])
{
$width = isset($options['width']) ? $options['width'] : 150;
$height = isset($options['height']) ? $options['height'] : 40;
$font = isset($options['font']) ? $options['font'] : null;
$phraseBuilder = new PhraseBuilder();
if (isset($options['captcha'])) {
$captcha = $options['captcha'];
} elseif (isset($options['length'])) {
$captcha = $phraseBuilder->build($options['length']);
} else {
$captcha = null;
}
$captchaBuilder = new CaptchaBuilder($captcha, $phraseBuilder);
if (isset($options['text_color'])) {
$captchaBuilder->setBackgroundColor($options['text_color'][0], $options['text_color'][1], $options['text_color'][2]);
}
if (isset($options['background_color'])) {
$captchaBuilder->setBackgroundColor($options['background_color'][0], $options['background_color'][1], $options['background_color'][2]);
}
if (isset($options['background_images'])) {
$captchaBuilder->setBackgroundColor($options['background_image']);
}
if (isset($options['ignore_effect'])) {
$captchaBuilder->setIgnoreAllEffects($options['ignore_effect']);
}
$captchaBuilder->build($width, $height, $font);
$captcha = $captchaBuilder->getPhrase();
session(['image_captcha.' . $name => $captcha]);
$this->captchaBuilder = $captchaBuilder;
return $this;
}
public function init()
{
parent::init();
$this->provider = new CaptchaBuilder($this->generatePhrase());
if (!empty($this->backgroundColor)) {
list($red, $green, $blue) = $this->backgroundColor;
$this->provider->setBackgroundColor($red, $green, $blue);
}
}
/**
* @param array $options
*
* @return string
*/
public function generate(array &$options)
{
$this->builder->setDistortion($options['distortion']);
$this->builder->setMaxFrontLines($options['max_front_lines']);
$this->builder->setMaxBehindLines($options['max_behind_lines']);
if (isset($options['text_color']) && $options['text_color']) {
if (count($options['text_color']) !== 3) {
throw new \RuntimeException('text_color should be an array of r, g and b');
}
$color = $options['text_color'];
$this->builder->setTextColor($color[0], $color[1], $color[2]);
}
if (isset($options['background_color']) && $options['background_color']) {
if (count($options['background_color']) !== 3) {
throw new \RuntimeException('background_color should be an array of r, g and b');
}
$color = $options['background_color'];
$this->builder->setBackgroundColor($color[0], $color[1], $color[2]);
}
$this->builder->setInterpolation($options['interpolation']);
$fingerprint = isset($options['fingerprint']) ? $options['fingerprint'] : null;
$content = $this->builder->build($options['width'], $options['height'], $options['font'], $fingerprint)->getGd();
if ($options['keep_value']) {
$options['fingerprint'] = $this->builder->getFingerprint();
}
if (!$options['as_file']) {
ob_start();
imagejpeg($content, null, $options['quality']);
return ob_get_clean();
}
return $this->imageFileHandler->saveAsFile($content);
}
protected function renderImage($code)
{
$builder = new CaptchaBuilder($code);
$builder->setBackgroundColor(255, 255, 255);
$builder->build(150, 40, $this->fontFile);
return $builder->get();
}
/**
* Load connection parameters from config file.
*
* @access private
* @param string $connection Connection group name
*/
private function setBuilder($width = 150, $height = 40, $font = null)
{
if ($this->session->has($this->secret . '::phrase') && $this->isAlive()) {
// Get phrase saved in session
$sessionPhrase = $this->session->get($this->secret . '::phrase');
// Decrypt phrase
$phrase = $this->encrypter->decrypt($sessionPhrase);
// Captcha builder
$this->builder = new CaptchaBuilder($phrase);
$this->builder->setDistortion(false);
$this->builder->setMaxBehindLines(0);
$this->builder->setMaxFrontLines(0);
$this->builder->setIgnoreAllEffects(false);
$this->builder->setBackgroundColor(241, 241, 241);
$this->builder->build($width, $height, $font);
} else {
// Captcha builder
$this->builder = new CaptchaBuilder();
$this->builder->setDistortion(false);
$this->builder->setMaxBehindLines(0);
$this->builder->setMaxFrontLines(0);
$this->builder->setIgnoreAllEffects(false);
$this->builder->setBackgroundColor(241, 241, 241);
$this->builder->build($width, $height, $font);
// Set last generated phrase
$this->session->put($this->secret . '::phrase', $this->encrypter->encrypt($this->builder->getPhrase()));
// Set last modified time
$this->session->put($this->secret . '::lastModified', time());
}
}
/**
* 生成登录页面的图形验证码
*
* @author young
* @name 生成登录页面的图形验证码
* @version 2013.11.07 young
* @return \Zend\Stdlib\ResponseInterface
*/
public function captchaAction()
{
$builder = new CaptchaBuilder();
$builder->setBackgroundColor(255, 255, 255);
$builder->setTextColor(255, 0, 255);
$builder->setPhrase(rand(100000, 999999));
$_SESSION['phrase'] = $builder->getPhrase();
$builder->build(150, 40);
header('Content-type: image/jpeg');
$this->response->setContent($builder->output(80));
return $this->response;
}
