77 lines
2.3 KiB
PHP
77 lines
2.3 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Gregwar\CaptchaBundle\Controller;
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use Gregwar\CaptchaBundle\Generator\CaptchaGenerator;
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use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpFoundation\Response;
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/**
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* Generates a captcha via a URL.
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*
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* @author Jeremy Livingston <jeremy.j.livingston@gmail.com>
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*/
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class CaptchaController extends AbstractController
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{
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/** @var CaptchaGenerator */
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private $captchaGenerator;
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/** @var array */
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private $config;
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public function __construct(CaptchaGenerator $captchaGenerator, array $config)
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{
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$this->captchaGenerator = $captchaGenerator;
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$this->config = $config;
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}
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public function generateCaptchaAction(Request $request, string $key): Response
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{
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$session = $request->getSession();
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$whitelistKey = $this->config['whitelist_key'];
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$isOk = false;
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if ($session->has($whitelistKey)) {
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$keys = $session->get($whitelistKey);
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if (is_array($keys) && in_array($key, $keys)) {
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$isOk = true;
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}
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}
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if (!$isOk) {
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return $this->error($this->config);
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}
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$persistedOptions = $session->get($key, array());
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$options = array_merge($this->config, $persistedOptions);
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$phrase = $this->captchaGenerator->getPhrase($options);
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$this->captchaGenerator->setPhrase($phrase);
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$persistedOptions['phrase'] = $phrase;
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$session->set($key, $persistedOptions);
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$response = new Response($this->captchaGenerator->generate($options));
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$response->headers->set('Content-type', 'image/jpeg');
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$response->headers->set('Pragma', 'no-cache');
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$response->headers->set('Cache-Control', 'no-cache');
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return $response;
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}
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private function error(array $options): Response
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{
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$this->captchaGenerator->setPhrase('');
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$response = new Response($this->captchaGenerator->generate($options));
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$response->setStatusCode(428);
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$response->headers->set('Content-type', 'image/jpeg');
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$response->headers->set('Pragma', 'no-cache');
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$response->headers->set('Cache-Control', 'no-cache');
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return $response;
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}
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}
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