12 changed files with 366 additions and 415 deletions
--- a/Controller/CaptchaController.php
+++ b/Controller/CaptchaController.php
@ -1,37 +1,32 @@
 <?php

-declare(strict_types=1);
-
 namespace Gregwar\CaptchaBundle\Controller;

-use Gregwar\CaptchaBundle\Generator\CaptchaGenerator;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
-use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

 /**
- * Generates a captcha via a URL.
+ * Generates a captcha via a URL
 *
 * @author Jeremy Livingston <jeremy.j.livingston@gmail.com>
 */
 class CaptchaController extends AbstractController
 {
-    /** @var CaptchaGenerator */
-    private $captchaGenerator;
-
-    /** @var array */
-    private $config;
-
-    public function __construct(CaptchaGenerator $captchaGenerator, array $config)
+    /**
+     * Action that is used to generate the captcha, save its code, and stream the image
+     *
+     * @param string $key
+     *
+     * @return Response
+     *
+     * @throws NotFoundHttpException
+     */
+    public function generateCaptchaAction($key)
    {
-        $this->captchaGenerator = $captchaGenerator;
-        $this->config = $config;
-    }
-
-    public function generateCaptchaAction(Request $request, string $key): Response
-    {
-        $session = $request->getSession();
-        $whitelistKey = $this->config['whitelist_key'];
+        $options = $this->container->getParameter('gregwar_captcha.config');
+        $session = $this->get('session');
+        $whitelistKey = $options['whitelist_key'];
        $isOk = false;

        if ($session->has($whitelistKey)) {
@ -42,18 +37,21 @@ class CaptchaController extends AbstractController
        }

        if (!$isOk) {
-            return $this->error($this->config);
+            return $this->error($options);
        }

-        $persistedOptions = $session->get($key, array());
-        $options = array_merge($this->config, $persistedOptions);
+        /* @var \Gregwar\CaptchaBundle\Generator\CaptchaGenerator $generator */
+        $generator = $this->container->get('gregwar_captcha.generator');

-        $phrase = $this->captchaGenerator->getPhrase($options);
-        $this->captchaGenerator->setPhrase($phrase);
+        $persistedOptions = $session->get($key, array());
+        $options = array_merge($options, $persistedOptions);
+
+        $phrase = $generator->getPhrase($options);
+        $generator->setPhrase($phrase);
        $persistedOptions['phrase'] = $phrase;
        $session->set($key, $persistedOptions);

-        $response = new Response($this->captchaGenerator->generate($options));
+        $response = new Response($generator->generate($options));
        $response->headers->set('Content-type', 'image/jpeg');
        $response->headers->set('Pragma', 'no-cache');
        $response->headers->set('Cache-Control', 'no-cache');
@ -61,11 +59,20 @@ class CaptchaController extends AbstractController
        return $response;
    }

-    private function error(array $options): Response
+    /**
+     * Returns an empty image with status code 428 Precondition Required
+     *
+     * @param array $options
+     *
+     * @return Response
+     */
+    protected function error($options)
    {
-        $this->captchaGenerator->setPhrase('');
+        /* @var \Gregwar\CaptchaBundle\Generator\CaptchaGenerator $generator */
+        $generator = $this->container->get('gregwar_captcha.generator');
+        $generator->setPhrase('');

-        $response = new Response($this->captchaGenerator->generate($options));
+        $response = new Response($generator->generate($options));
        $response->setStatusCode(428);
        $response->headers->set('Content-type', 'image/jpeg');
        $response->headers->set('Pragma', 'no-cache');
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@ -1,7 +1,5 @@
 <?php

-declare(strict_types=1);
-
 namespace Gregwar\CaptchaBundle\DependencyInjection;

 use Symfony\Component\Config\Definition\Builder\TreeBuilder;
@ -9,10 +7,21 @@ use Symfony\Component\Config\Definition\ConfigurationInterface;

 class Configuration implements ConfigurationInterface
 {
-    public function getConfigTreeBuilder(): TreeBuilder
+    /**
+     * Generates the configuration tree.
+     *
+     * @return TreeBuilder
+     */
+    public function getConfigTreeBuilder()
    {
        $treeBuilder = new TreeBuilder('gregwar_captcha');
-        $rootNode = $treeBuilder->getRootNode();
+
+        if (method_exists($treeBuilder, 'getRootNode')) {
+            $rootNode = $treeBuilder->getRootNode();
+        } else {
+            // BC for symfony/config <= 4.1
+            $rootNode = $treeBuilder->root('gregwar_captcha');
+        }

        $rootNode
            ->addDefaultsIfNotSet()
@ -27,7 +36,7 @@ class Configuration implements ConfigurationInterface
                ->scalarNode('as_url')->defaultValue(false)->end()
                ->scalarNode('reload')->defaultValue(false)->end()
                ->scalarNode('image_folder')->defaultValue('captcha')->end()
-                ->scalarNode('web_path')->defaultValue('%kernel.project_dir%/public')->end()
+                ->scalarNode('web_path')->defaultValue('%kernel.root_dir%/../web')->end()
                ->scalarNode('gc_freq')->defaultValue(100)->end()
                ->scalarNode('expiration')->defaultValue(60)->end()
                ->scalarNode('quality')->defaultValue(50)->end()
--- a/DependencyInjection/GregwarCaptchaExtension.php
+++ b/DependencyInjection/GregwarCaptchaExtension.php
@ -1,29 +1,24 @@
 <?php

-declare(strict_types=1);
-
 namespace Gregwar\CaptchaBundle\DependencyInjection;

-use Exception;
 use Symfony\Component\HttpKernel\DependencyInjection\Extension;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
 use Symfony\Component\Config\FileLocator;

 /**
- * Extension used to load the configuration, set parameters, and initialize the captcha view.
+ * Extension used to load the configuration, set parameters, and initialize the captcha view
 *
 * @author Gregwar <g.passault@gmail.com>
 */
 class GregwarCaptchaExtension extends Extension
 {
    /**
-     * @param array            $configs
+     * @param array $configs
     * @param ContainerBuilder $container
-     *
-     * @throws Exception
     */
-    public function load(array $configs, ContainerBuilder $container): void
+    public function load(array $configs, ContainerBuilder $container)
    {
        $loader = new YamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
        $loader->load('services.yml');
--- a/Generator/CaptchaGenerator.php
+++ b/Generator/CaptchaGenerator.php
@ -1,40 +1,48 @@
 <?php

-declare(strict_types=1);
-
 namespace Gregwar\CaptchaBundle\Generator;

 use Gregwar\Captcha\CaptchaBuilder;
 use Gregwar\Captcha\PhraseBuilder;
+use Symfony\Component\HttpFoundation\Session\SessionInterface;
 use Symfony\Component\Routing\RouterInterface;
+
 use Gregwar\Captcha\CaptchaBuilderInterface;
 use Gregwar\Captcha\PhraseBuilderInterface;

 /**
- * Uses configuration parameters to call the services that generate captcha images.
+ * Uses configuration parameters to call the services that generate captcha images
 *
 * @author Gregwar <g.passault@gmail.com>
 * @author Jeremy Livingston <jeremy.j.livingston@gmail.com>
 */
 class CaptchaGenerator
 {
-    /** @var RouterInterface */
+    /**
+     * @var RouterInterface
+     */
    protected $router;

-    /** @var CaptchaBuilder */
+    /**
+     * @var CaptchaBuilder
+     */
    protected $builder;

-    /** @var PhraseBuilder */
+    /**
+     * @var PhraseBuilder
+     */
    protected $phraseBuilder;

-    /** @var ImageFileHandler */
+    /**
+     * @var ImageFileHandler
+     */
    protected $imageFileHandler;

    /**
-     * @param RouterInterface         $router
+     * @param RouterInterface $router
     * @param CaptchaBuilderInterface $builder
-     * @param PhraseBuilderInterface  $phraseBuilder
-     * @param ImageFileHandler        $imageFileHandler
+     * @param PhraseBuilderInterface $phraseBuilder
+     * @param ImageFileHandler $imageFileHandler
     */
    public function __construct(
        RouterInterface $router,
@ -42,13 +50,20 @@ class CaptchaGenerator
        PhraseBuilderInterface $phraseBuilder,
        ImageFileHandler $imageFileHandler
    ) {
-        $this->router = $router;
-        $this->builder = $builder;
-        $this->phraseBuilder = $phraseBuilder;
-        $this->imageFileHandler = $imageFileHandler;
+        $this->router           = $router;
+        $this->builder          = $builder;
+        $this->phraseBuilder    = $phraseBuilder;
+        $this->imageFileHandler = $imageFileHandler;    
    }

-    public function getCaptchaCode(array &$options): string
+    /**
+     * Get the captcha URL, stream, or filename that will go in the image's src attribute
+     *
+     * @param array $options
+     *
+     * @return array
+     */
+    public function getCaptchaCode(array &$options)
    {
        $this->builder->setPhrase($this->getPhrase($options));

@ -61,21 +76,27 @@ class CaptchaGenerator

        // Returns the image generation URL
        if ($options['as_url']) {
-            return $this->router->generate(
-                'gregwar_captcha.generate_captcha',
-                array('key' => $options['session_key'], 'n' => md5(microtime(true).mt_rand()))
-            );
+            return $this->router->generate('gregwar_captcha.generate_captcha', 
+                array('key' => $options['session_key'], 'n' => md5(microtime(true).mt_rand())));
        }

-        return 'data:image/jpeg;base64,'.base64_encode($this->generate($options));
+        return 'data:image/jpeg;base64,' . base64_encode($this->generate($options));
    }

-    public function setPhrase(string $phrase): void
+    /**
+     * Sets the phrase to the builder
+     */
+    public function setPhrase($phrase)
    {
        $this->builder->setPhrase($phrase);
    }

-    public function generate(array &$options): string
+    /**
+     * @param array $options
+     *
+     * @return string
+     */
+    public function generate(array &$options)
    {
        $this->builder->setDistortion($options['distortion']);

@ -83,7 +104,7 @@ class CaptchaGenerator
        $this->builder->setMaxBehindLines($options['max_behind_lines']);

        if (isset($options['text_color']) && $options['text_color']) {
-            if (3 !== count($options['text_color'])) {
+            if (count($options['text_color']) !== 3) {
                throw new \RuntimeException('text_color should be an array of r, g and b');
            }

@ -92,7 +113,7 @@ class CaptchaGenerator
        }

        if (isset($options['background_color']) && $options['background_color']) {
-            if (3 !== count($options['background_color'])) {
+            if (count($options['background_color']) !== 3) {
                throw new \RuntimeException('background_color should be an array of r, g and b');
            }

@ -128,7 +149,12 @@ class CaptchaGenerator
        return $this->imageFileHandler->saveAsFile($content);
    }

-    public function getPhrase(array &$options): string
+    /**
+     * @param array $options
+     *
+     * @return string
+     */
+    public function getPhrase(array &$options)
    {
        // Get the phrase that we'll use for this image
        if ($options['keep_value'] && isset($options['phrase'])) {
@ -137,7 +163,7 @@ class CaptchaGenerator
            $phrase = $this->phraseBuilder->build($options['length'], $options['charset']);
            $options['phrase'] = $phrase;
        }
-
+        
        return $phrase;
    }
 }
--- a/Generator/ImageFileHandler.php
+++ b/Generator/ImageFileHandler.php
@ -1,13 +1,11 @@
 <?php

-declare(strict_types=1);
-
 namespace Gregwar\CaptchaBundle\Generator;

 use Symfony\Component\Finder\Finder;

 /**
- * Handles actions related to captcha image files including saving and garbage collection.
+ * Handles actions related to captcha image files including saving and garbage collection
 *
 * @author Gregwar <g.passault@gmail.com>
 * @author Jeremy Livingston <jeremy@quizzle.com>
@ -15,61 +13,69 @@ use Symfony\Component\Finder\Finder;
 class ImageFileHandler
 {
    /**
-     * Name of folder for captcha images.
-     *
+     * Name of folder for captcha images
     * @var string
     */
    protected $imageFolder;

    /**
-     * Absolute path to public web folder.
-     *
+     * Absolute path to public web folder
     * @var string
     */
    protected $webPath;

    /**
-     * Frequency of garbage collection in fractions of 1.
-     *
+     * Frequency of garbage collection in fractions of 1
     * @var int
     */
    protected $gcFreq;

    /**
-     * Maximum age of images in minutes.
-     *
+     * Maximum age of images in minutes
     * @var int
     */
    protected $expiration;

    /**
-     * @param string $imageFolder
-     * @param string $webPath
-     * @param string $gcFreq
-     * @param string $expiration
+     * @param $imageFolder
+     * @param $webPath
+     * @param $gcFreq
+     * @param $expiration
     */
-    public function __construct(string $imageFolder, string $webPath, string $gcFreq, string $expiration)
+    public function __construct($imageFolder, $webPath, $gcFreq, $expiration)
    {
-        $this->imageFolder = $imageFolder;
-        $this->webPath = $webPath;
-        $this->gcFreq = $gcFreq;
-        $this->expiration = $expiration;
+        $this->imageFolder      = $imageFolder;
+        $this->webPath          = $webPath;
+        $this->gcFreq           = $gcFreq;
+        $this->expiration       = $expiration;
    }

-    public function saveAsFile($contents): string
+    /**
+     * Saves the provided image content as a file
+     *
+     * @param string $contents
+     *
+     * @return string
+     */
+    public function saveAsFile($contents)
    {
        $this->createFolderIfMissing();

-        $filename = md5(uniqid()).'.jpg';
-        $filePath = $this->webPath.'/'.$this->imageFolder.'/'.$filename;
+        $filename = md5(uniqid()) . '.jpg';
+        $filePath = $this->webPath . '/' . $this->imageFolder . '/' . $filename;
        imagejpeg($contents, $filePath, 15);

-        return '/'.$this->imageFolder.'/'.$filename;
+        return '/' . $this->imageFolder . '/' . $filename;
    }

-    public function collectGarbage(): bool
+    /**
+     * Randomly runs garbage collection on the image directory
+     *
+     * @return bool
+     */
+    public function collectGarbage()
    {
-        if (1 == !mt_rand(1, $this->gcFreq)) {
+        if (!mt_rand(1, $this->gcFreq) == 1) {
            return false;
        }

@ -77,20 +83,23 @@ class ImageFileHandler

        $finder = new Finder();
        $criteria = sprintf('<= now - %s minutes', $this->expiration);
-        $finder->in($this->webPath.'/'.$this->imageFolder)
+        $finder->in($this->webPath . '/' . $this->imageFolder)
            ->date($criteria);

-        foreach ($finder->files() as $file) {
+        foreach($finder->files() as $file) {
            unlink($file->getPathname());
        }

        return true;
    }

-    protected function createFolderIfMissing(): void
+    /**
+     * Creates the folder if it doesn't exist
+     */
+    protected function createFolderIfMissing()
    {
-        if (!file_exists($this->webPath.'/'.$this->imageFolder)) {
-            mkdir($this->webPath.'/'.$this->imageFolder, 0755);
+        if (!file_exists($this->webPath . '/' . $this->imageFolder)) {
+            mkdir($this->webPath . '/' . $this->imageFolder, 0755);
        }
    }
 }
--- a/GregwarCaptchaBundle.php
+++ b/GregwarCaptchaBundle.php
@ -1,7 +1,5 @@
 <?php

-declare(strict_types=1);
-
 namespace Gregwar\CaptchaBundle;

 use Symfony\Component\HttpKernel\Bundle\Bundle;
--- a/README.md
+++ b/README.md
@ -11,56 +11,107 @@ It uses [gregwar/captcha](https://github.com/Gregwar/Captcha) as captcha generat
 Compatibility with Symfony
 ==========================

-| CaptchaBundle   | Symfony   | PHP      |
-|:---------------:|:---------:|:--------:|
-| 2.1.*           | 4.* - 5.* | >= 7.1   |
-| 2.0.*           | 2.8 - 3.* | >= 5.3.9 |
-| 1.*             | 2.1 - 2.7 | >= 5.3.0 |
+If you are using Symfony `< 2.8`, you should use version `1.*`

+If you are using SYmfony `>= 2.8`, you should use version `2.*`

 Installation
 ============

 ### Step 1: Download the GregwarCaptchaBundle

-Use composer require to download and install the package. 
-At the end of the installation, the bundle is automatically registered thanks to the Symfony recipe.
+Ultimately, the GregwarCaptchaBundle files should be downloaded to the
+'vendor/bundles/Gregwar/CaptchaBundle' directory.
+
+You can accomplish this several ways, depending on your personal preference.
+The first method is the standard Symfony method.
+
+***Using Composer***
+
+Use composer require to download and install the package.

 ``` bash
    composer require gregwar/captcha-bundle
 ```

-If you don't use flex, register it manually:
+***Using the vendors script***
+
+Add the following lines to your `deps` file:
+
+```
+    [GregwarCaptchaBundle]
+        git=http://github.com/Gregwar/CaptchaBundle.git
+        target=/bundles/Gregwar/CaptchaBundle
+        version=origin/2.0 <- add this if you are using Symfony 2.0
+```
+
+Now, run the vendors script to download the bundle:
+
+``` bash
+$ php bin/vendors install
+```
+
+***Using submodules***
+
+If you prefer instead to use git submodules, then run the following:
+
+``` bash
+$ git submodule add git://github.com/Gregwar/CaptchaBundle.git vendor/bundles/Gregwar/CaptchaBundle
+$ git submodule update --init
+```
+
+### Step 2: Configure the Autoloader
+
+If you use composer, you can skip this step.
+
+Now you will need to add the `Gregwar` namespace to your autoloader:
+
+``` php
+<?php
+// app/autoload.php
+
+$loader->registerNamespaces(array(
+    // ...
+    'Gregwar' => __DIR__.'/../vendor/bundles',
+));
+```
+### Step 3: Enable the bundle
+
+Finally, enable the bundle in the kernel:
+
 ```php
 <?php
-// config/bundles.php
-return [
-    // ...
-    Gregwar\CaptchaBundle\GregwarCaptchaBundle::class => ['all' => true]
-];
+// app/appKernel.php
+
+public function registerBundles()
+{
+    $bundles = array(
+        // ...
+        new Gregwar\CaptchaBundle\GregwarCaptchaBundle(),
+    );
+}
 ```

 Configuration
 =============

-If you need to customize the global bundle configuration, you can create a  `/config/packages/gregwar_captcha.yaml` file with your configuration:
-``` yaml
-gregwar_captcha:
-  width: 160
-  height: 50
-```
+Add the following configuration to your `app/config/config.yml`:
+
+    gregwar_captcha: ~

 Usage
 =====

 You can use the "captcha" type in your forms this way:

-``` php
+```php
 <?php
-use Gregwar\CaptchaBundle\Type\CaptchaType;
-// ...
-$builder->add('captcha', CaptchaType::class); // That's all !
-// ...
+    use Gregwar\CaptchaBundle\Type\CaptchaType;
+    // ...
+    $builder->add('captcha', CaptchaType::class); // That's all !
+    // If you're using php<5.5, you can use instead:
+    $builder->add('captcha', 'Gregwar\CaptchaBundle\Type\CaptchaType');
+    // ...
 ```

 Note that the generated image will, by default, be embedded in the HTML document
@ -72,7 +123,7 @@ Options
 You can define the following configuration options globally:

 * **image_folder**: name of folder for captcha images relative to public web folder in case **as_file** is set to true (default="captcha")
-* **web_path**: absolute path to public web folder (default='%kernel.project_dir%/public')
+* **web_path**: absolute path to public web folder (default="%kernel.root_dir%/../web")
 * **gc_freq**: frequency of garbage collection in fractions of 1 (default=100)
 * **expiration**: maximum lifetime of captcha image files in minutes (default=60)

@ -101,29 +152,27 @@ number of lines depends on the size of the image). (default=null)
 * **background_images**: Sets custom user defined images as the captcha background (1 image is selected randomly). It is recommended to turn off all the effects on the image (ignore_all_effects). The full paths to the images must be passed.
 * **interpolation**: enable or disable the interpolation on the captcha
 * **ignore_all_effects**: Recommended to use when setting background images, will disable all image effects.
-* **session_key**, if you want to host multiple CAPTCHA on the same page, you might have different session keys to ensure proper storage of the clear phrase for those different forms

 Example :

-``` php
+```php
 <?php
-use Gregwar\CaptchaBundle\Type\CaptchaType;
-// ...
-$builder->add('captcha', CaptchaType::class, array(
-    'width' => 200,
-    'height' => 50,
-    'length' => 6,
-));
+    use Gregwar\CaptchaBundle\Type\CaptchaType;
+    // ...
+    $builder->add('captcha', CaptchaType::class, array(
+        'width' => 200,
+        'height' => 50,
+        'length' => 6,
+    ));
 ```

 You can also set these options for your whole application using the `gregwar_captcha`
 configuration entry in your `config.yml` file:
-``` yaml 
-gregwar_captcha:
-    width: 200
-    height: 50
-    length: 6
-```
+
+    gregwar_captcha:
+        width: 200
+        height: 50
+        length: 6

 Translation
 ===========
@ -132,20 +181,16 @@ The messages are using the translator, you can either change the `invalid_messag

 As URL
 ============
-To use a URL to generate a captcha image, you must add the bundle's routing configuration to your `config/routes.yaml` file:
+To use a URL to generate a captcha image, you must add the bundle's routing configuration to your app/routing.yml file:

-``` yaml 
-gregwar_captcha_routing:
-    resource: "@GregwarCaptchaBundle/Resources/config/routing/routing.yml"
-```
+    gregwar_captcha_routing:
+        resource: "@GregwarCaptchaBundle/Resources/config/routing/routing.yml"

-This will use the bundle's route of `/generate-captcha/{key}` to handle the generation. If this route conflicts with an application route, you can prefix the bundle's routes when you import:
+This will use the bundle's route of "/generate-captcha/{key}" to handle the generation. If this route conflicts with an application route, you can prefix the bundle's routes when you import:

-``` yaml 
-gregwar_captcha_routing:
-    resource: "@GregwarCaptchaBundle/Resources/config/routing/routing.yml"
-    prefix: /_gcb
-```
+    gregwar_captcha_routing:
+        resource: "@GregwarCaptchaBundle/Resources/config/routing/routing.yml"
+        prefix: /_gcb

 Since the session key is transported in the URL, it's also added in another session array, under the `whitelist_key` key, for security reasons

@ -156,7 +201,7 @@ The widget support the standard Symfony theming, see the [documentation](http://

 The default rendering is:

-``` twig
+```html
 {% block captcha_widget %}
 {% spaceless %}
    <img src="{{ captcha_code }}" title="captcha" width="{{ captcha_width }}" height="{{ captcha_height }}" />
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@ -1,5 +1,4 @@
 parameters:
-    gregwar_captcha.controller.class: Gregwar\CaptchaBundle\Controller\CaptchaController
    gregwar_captcha.captcha_type.class: Gregwar\CaptchaBundle\Type\CaptchaType
    gregwar_captcha.captcha_generator.class: Gregwar\CaptchaBundle\Generator\CaptchaGenerator
    gregwar_captcha.image_file_handler.class: Gregwar\CaptchaBundle\Generator\ImageFileHandler
@ -7,20 +6,7 @@ parameters:
    gregwar_captcha.phrase_builder.class: Gregwar\Captcha\PhraseBuilder
    
 services:
-    Gregwar\CaptchaBundle\Controller\CaptchaController:
-        public: true
-        alias: 'gregwar_captcha.controller'
-
-    gregwar_captcha.controller:
-        class: '%gregwar_captcha.controller.class%'
-        public: true
-        arguments:
-            - '@gregwar_captcha.generator'
-            - '%gregwar_captcha.config%'
-        autowire: true
-
-#    captcha.type:
-    gregwar_captcha.type:
+    captcha.type:
        class: '%gregwar_captcha.captcha_type.class%'
        public: true
        arguments:
--- a/Type/CaptchaType.php
+++ b/Type/CaptchaType.php
@ -1,23 +1,22 @@
 <?php

-declare(strict_types=1);
-
 namespace Gregwar\CaptchaBundle\Type;

-use Symfony\Component\Form\Extension\Core\Type\TextType;
 use Symfony\Component\HttpFoundation\Session\SessionInterface;
 use Symfony\Component\Form\FormView;
 use Symfony\Component\Form\FormInterface;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\OptionsResolver\OptionsResolver;
+use Symfony\Component\OptionsResolver\OptionsResolverInterface;
 use Symfony\Component\Form\FormEvents;
-use Symfony\Contracts\Translation\TranslatorInterface;
+use Symfony\Component\Translation\TranslatorInterface;
+
 use Gregwar\CaptchaBundle\Validator\CaptchaValidator;
 use Gregwar\CaptchaBundle\Generator\CaptchaGenerator;

 /**
- * Captcha type.
+ * Captcha type
 *
 * @author Gregwar <g.passault@gmail.com>
 */
@ -25,16 +24,25 @@ class CaptchaType extends AbstractType
 {
    const SESSION_KEY_PREFIX = '_captcha_';

-    /** @var SessionInterface */
+    /**
+     * @var SessionInterface
+     */
    protected $session;

-    /** @var CaptchaGenerator */
+    /**
+     * @var CaptchaGenerator
+     */
    protected $generator;

-    /** @var TranslatorInterface */
+    /**
+     * @var TranslatorInterface
+     */
    protected $translator;

-    /** @var array */
+    /**
+     * Options
+     * @var array
+     */
    private $options = array();

    /**
@ -45,10 +53,10 @@ class CaptchaType extends AbstractType
     */
    public function __construct(SessionInterface $session, CaptchaGenerator $generator, TranslatorInterface $translator, $options)
    {
-        $this->session = $session;
-        $this->generator = $generator;
-        $this->translator = $translator;
-        $this->options = $options;
+        $this->session      = $session;
+        $this->generator    = $generator;
+        $this->translator   = $translator;
+        $this->options      = $options;
    }

    /**
@ -62,11 +70,10 @@ class CaptchaType extends AbstractType
            sprintf('%s%s', self::SESSION_KEY_PREFIX, $options['session_key']),
            $options['invalid_message'],
            $options['bypass_code'],
-            $options['humanity'],
-            $options['request']
+            $options['humanity']
        );
-
-        $builder->addEventListener(FormEvents::POST_SUBMIT, array($validator, 'validate'));
+        $event = \Symfony\Component\HttpKernel\Kernel::VERSION >= 2.3 ? FormEvents::POST_SUBMIT : FormEvents::POST_BIND;
+        $builder->addEventListener($event, array($validator, 'validate'));
    }

    /**
@ -79,7 +86,7 @@ class CaptchaType extends AbstractType
        }

        $sessionKey = sprintf('%s%s', self::SESSION_KEY_PREFIX, $options['session_key']);
-        $isHuman = false;
+        $isHuman    = false;

        if ($options['humanity'] > 0) {
            $humanityKey = sprintf('%s_humanity', $sessionKey);
@ -98,18 +105,18 @@ class CaptchaType extends AbstractType
        }

        $view->vars = array_merge($view->vars, array(
-            'captcha_width' => $options['width'],
-            'captcha_height' => $options['height'],
-            'reload' => $options['reload'],
-            'image_id' => uniqid('captcha_'),
-            'captcha_code' => $this->generator->getCaptchaCode($options),
-            'value' => '',
-            'is_human' => $isHuman,
+            'captcha_width'     => $options['width'],
+            'captcha_height'    => $options['height'],
+            'reload'            => $options['reload'],
+            'image_id'          => uniqid('captcha_'),
+            'captcha_code'      => $this->generator->getCaptchaCode($options),
+            'value'             => '',
+            'is_human'          => $isHuman
        ));

        $persistOptions = array();
        foreach (array('phrase', 'width', 'height', 'distortion', 'length',
-        'quality', 'background_color', 'background_images', 'text_color', ) as $key) {
+        'quality', 'background_color', 'background_images', 'text_color') as $key) {
            $persistOptions[$key] = $options[$key];
        }

@ -122,21 +129,39 @@ class CaptchaType extends AbstractType
    public function configureOptions(OptionsResolver $resolver)
    {
        $this->options['mapped'] = false;
-        $this->options['request'] = null;
        $resolver->setDefaults($this->options);
    }

-    public function getParent(): string
+    /**
+     * {@inheritdoc}
+     * BC for SF < 2.7
+     */
+    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
-        return TextType::class;
+        $this->configureOptions($resolver);
    }

-    public function getName(): string
+    /**
+     * @return string
+     */
+    public function getParent()
+    {
+        // Not using ::class to support Symfony 2.8 w/ php>=5.3.9
+        return 'Symfony\Component\Form\Extension\Core\Type\TextType';
+    }
+
+    /**
+     * @return string
+     */
+    public function getName()
    {
        return $this->getBlockPrefix();
    }

-    public function getBlockPrefix(): string
+    /**
+     * @return string
+     */
+    public function getBlockPrefix()
    {
        return 'captcha';
    }
--- a/Validator/CaptchaValidator.php
+++ b/Validator/CaptchaValidator.php
@ -1,86 +1,73 @@
 <?php

-declare(strict_types=1);
-
 namespace Gregwar\CaptchaBundle\Validator;

 use Symfony\Component\HttpFoundation\Session\SessionInterface;
 use Symfony\Component\Form\FormError;
 use Symfony\Component\Form\FormEvent;
-use Symfony\Contracts\Translation\TranslatorInterface;
-use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\Translation\TranslatorInterface;

 /**
- * Captcha validator.
+ * Captcha validator
 *
 * @author Gregwar <g.passault@gmail.com>
 */
 class CaptchaValidator
 {
-    /** @var SessionInterface */
+    /**
+     * @var SessionInterface
+     */
    private $session;

    /**
-     * Session key to store the code.
-     *
-     * @var string
+     * Session key to store the code
     */
    private $key;

    /**
-     * Error message text for non-matching submissions.
-     *
-     * @var string
+     * Error message text for non-matching submissions
     */
    private $invalidMessage;

    /**
-     * Configuration parameter used to bypass a required code match.
-     *
-     * @var string
+     * Configuration parameter used to bypass a required code match
     */
    private $bypassCode;

    /**
-     * Number of form that the user can submit without captcha.
-     *
+     * Number of form that the user can submit without captcha
     * @var int
     */
    private $humanity;

    /**
-     * Translator.
-     *
+     * Translator
     * @var TranslatorInterface
     */
    private $translator;

    /**
-     * Request
-     *
-     * @var Request
+     * @param TranslatorInterface $translator
+     * @param SessionInterface    $session
+     * @param string              $key
+     * @param string              $invalidMessage
+     * @param string              $bypassCode
+     * @param int                 $humanity
     */
-    private $req;
-
-    public function __construct(
-        TranslatorInterface $translator,
-        SessionInterface $session,
-        string $key,
-        string $invalidMessage,
-        ?string $bypassCode,
-        int $humanity,
-        ?Request $req
-    ) {
-        $this->translator = $translator;
-        $this->session = $session;
-        $this->key = $key;
-        $this->invalidMessage = $invalidMessage;
-        $this->bypassCode = $bypassCode;
-        $this->humanity = $humanity;
-        $this->req = $req;
+    public function __construct(TranslatorInterface $translator, SessionInterface $session, $key, $invalidMessage, $bypassCode, $humanity)
+    {
+        $this->translator       = $translator;
+        $this->session          = $session;
+        $this->key              = $key;
+        $this->invalidMessage   = $invalidMessage;
+        $this->bypassCode       = (string)$bypassCode;
+        $this->humanity         = $humanity;
    }

-    public function validate(FormEvent $event): void
+    /**
+     * @param FormEvent $event
+     */
+    public function validate(FormEvent $event)
    {
        $form = $event->getForm();

@ -90,13 +77,12 @@ class CaptchaValidator
        if ($this->humanity > 0) {
            $humanity = $this->getHumanity();
            if ($humanity > 0) {
-                $this->updateHumanity($humanity - 1);
-
+                $this->updateHumanity($humanity-1);
                return;
            }
        }

-        if (!(null !== $code && is_string($code) && ($this->compare($code, $expectedCode) || $this->compare($code, $this->bypassCode)))) {
+        if (!($code !== null && is_string($code) && ($this->compare($code, $expectedCode) || $this->compare($code, $this->bypassCode)))) {
            $form->addError(new FormError($this->translator->trans($this->invalidMessage, array(), 'validators')));
        } else {
            if ($this->humanity > 0) {
@ -104,16 +90,15 @@ class CaptchaValidator
            }
        }

-        if (null == $this->req || 1 < $this->req->get('flow_registration_step')) {
-            $this->session->remove($this->key);
-            if ($this->session->has($this->key.'_fingerprint')) {
-                $this->session->remove($this->key.'_fingerprint');
-            }
+        $this->session->remove($this->key);
+
+        if ($this->session->has($this->key . '_fingerprint')) {
+            $this->session->remove($this->key . '_fingerprint');
        }
    }

    /**
-     * Retrieve the expected CAPTCHA code.
+     * Retrieve the expected CAPTCHA code
     *
     * @return mixed|null
     */
@ -129,39 +114,51 @@ class CaptchaValidator
    }

    /**
-     * Retrieve the humanity.
+     * Retrieve the humanity
     *
     * @return mixed|null
     */
    protected function getHumanity()
    {
-        return $this->session->get($this->key.'_humanity', 0);
+        return $this->session->get($this->key . '_humanity', 0);
    }

-    protected function updateHumanity(int $newValue): void
+    /**
+     * Updates the humanity
+     */
+    protected function updateHumanity($newValue)
    {
        if ($newValue > 0) {
-            $this->session->set($this->key.'_humanity', $newValue);
+            $this->session->set($this->key . '_humanity', $newValue);
        } else {
-            $this->session->remove($this->key.'_humanity');
+            $this->session->remove($this->key . '_humanity');
        }
+
+        return null;
    }

-    protected function niceize(string $code): string
+    /**
+     * Process the codes
+     *
+     * @param $code
+     *
+     * @return string
+     */
+    protected function niceize($code)
    {
        return strtr(strtolower($code), 'oil', '01l');
    }

    /**
-     * Run a match comparison on the provided code and the expected code.
+     * Run a match comparison on the provided code and the expected code
     *
-     * @param string      $code
-     * @param string|null $expectedCode
+     * @param $code
+     * @param $expectedCode
     *
     * @return bool
     */
-    protected function compare($code, $expectedCode): bool
+    protected function compare($code, $expectedCode)
    {
-        return null !== $expectedCode && is_string($expectedCode) && $this->niceize($code) == $this->niceize($expectedCode);
+        return ($expectedCode !== null && is_string($expectedCode) && $this->niceize($code) == $this->niceize($expectedCode));
    }
 }
--- a/composer.json
+++ b/composer.json
@ -1,9 +1,9 @@
 {
-    "name": "cadoles/captcha",
-    "type": "symfony-bundle",
+    "name": "gregwar/captcha-bundle",
+    "type": "captcha-bundle",
    "description": "Captcha bundle",
-    "keywords": ["symfony2", "symfony", "captcha", "bot", "visual", "code", "security", "spam"],
-    "homepage": "https://github.com/Cadoles/CaptchaBundle",
+    "keywords": ["symfony2", "captcha", "bot", "visual", "code", "security", "spam"],
+    "homepage": "https://github.com/Gregwar/CaptchaBundle",
    "license": "MIT",
    "authors": [
        {
@ -17,23 +17,15 @@
        }
    ],
    "require": {
-        "php": ">=7.1.3",
-        "ext-gd": "*",
-        "gregwar/captcha": "^1.1.9",
-        "symfony/form": "~4.0|~5.0",
-        "symfony/framework-bundle": "~4.0|~5.0",
-        "symfony/translation": "~4.0|^5.0",
-        "twig/twig": "^2.10|^3.0"
+        "php": ">=5.3.9",
+        "gregwar/captcha": "~1.1",
+        "symfony/framework-bundle": "~2.8|~3.0|~4.0",
+        "symfony/form": "~2.8|~3.0|~4.0",
+        "twig/twig": "^1.40|^2.9"
    },
    "autoload": {
        "psr-4": {
            "Gregwar\\CaptchaBundle\\": "/"
        }
-    },
-    "config": {
-        "sort-packages": true
-    },
-    "require-dev": {
-        "symplify/easy-coding-standard": "^6.1"
    }
 }
--- a/ecs.yaml
+++ b/ecs.yaml
@ -1,138 +0,0 @@
-parameters:
-  exclude_files:
-    - 'vendor/*'
-    - 'LICENSE'
-    - 'README.md'
-
-services:
-  # PSR1
-  PhpCsFixer\Fixer\Basic\EncodingFixer: ~
-  PhpCsFixer\Fixer\PhpTag\FullOpeningTagFixer: ~
-
-  PhpCsFixer\Fixer\NamespaceNotation\BlankLineAfterNamespaceFixer: ~
-  PhpCsFixer\Fixer\ControlStructure\ElseifFixer: ~
-  PhpCsFixer\Fixer\FunctionNotation\FunctionDeclarationFixer: ~
-  PhpCsFixer\Fixer\Whitespace\IndentationTypeFixer: ~
-  PhpCsFixer\Fixer\Whitespace\LineEndingFixer: ~
-  PhpCsFixer\Fixer\Casing\ConstantCaseFixer: ~
-  PhpCsFixer\Fixer\Casing\LowercaseKeywordsFixer: ~
-  PhpCsFixer\Fixer\FunctionNotation\MethodArgumentSpaceFixer:
-    ensure_fully_multiline: true
-  PhpCsFixer\Fixer\ControlStructure\NoBreakCommentFixer: ~
-  PhpCsFixer\Fixer\PhpTag\NoClosingTagFixer: ~
-  PhpCsFixer\Fixer\FunctionNotation\NoSpacesAfterFunctionNameFixer: ~
-  PhpCsFixer\Fixer\Whitespace\NoSpacesInsideParenthesisFixer: ~
-  PhpCsFixer\Fixer\Whitespace\NoTrailingWhitespaceFixer: ~
-  PhpCsFixer\Fixer\Comment\NoTrailingWhitespaceInCommentFixer: ~
-  PhpCsFixer\Fixer\Whitespace\SingleBlankLineAtEofFixer: ~
-  PhpCsFixer\Fixer\ClassNotation\SingleClassElementPerStatementFixer:
-    elements:
-      - 'property'
-  PhpCsFixer\Fixer\Import\SingleImportPerStatementFixer: ~
-  PhpCsFixer\Fixer\Import\SingleLineAfterImportsFixer: ~
-  PhpCsFixer\Fixer\ControlStructure\SwitchCaseSemicolonToColonFixer: ~
-  PhpCsFixer\Fixer\ControlStructure\SwitchCaseSpaceFixer: ~
-  PhpCsFixer\Fixer\ClassNotation\VisibilityRequiredFixer: ~
-
-  PhpCsFixer\Fixer\Basic\BracesFixer:
-    allow_single_line_closure: true
-  PhpCsFixer\Fixer\PhpTag\BlankLineAfterOpeningTagFixer: ~
-  PhpCsFixer\Fixer\Operator\ConcatSpaceFixer:
-    spacing: none
-  PhpCsFixer\Fixer\Operator\NewWithBracesFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocAlignFixer:
-    tags:
-      - method
-      - param
-      - property
-      - return
-      - throws
-      - type
-      - var
-  PhpCsFixer\Fixer\Operator\BinaryOperatorSpacesFixer: ~
-  PhpCsFixer\Fixer\Operator\IncrementStyleFixer: ~
-  PhpCsFixer\Fixer\Operator\UnaryOperatorSpacesFixer: ~
-  PhpCsFixer\Fixer\Whitespace\BlankLineBeforeStatementFixer: ~
-  PhpCsFixer\Fixer\CastNotation\CastSpacesFixer: ~
-  PhpCsFixer\Fixer\LanguageConstruct\DeclareEqualNormalizeFixer: ~
-  PhpCsFixer\Fixer\FunctionNotation\FunctionTypehintSpaceFixer: ~
-  PhpCsFixer\Fixer\Comment\SingleLineCommentStyleFixer:
-    comment_types:
-      - hash
-  PhpCsFixer\Fixer\ControlStructure\IncludeFixer: ~
-  PhpCsFixer\Fixer\CastNotation\LowercaseCastFixer: ~
-  PhpCsFixer\Fixer\ClassNotation\ClassAttributesSeparationFixer:
-    elements:
-      - method
-  PhpCsFixer\Fixer\Casing\NativeFunctionCasingFixer: ~
-  PhpCsFixer\Fixer\ClassNotation\NoBlankLinesAfterClassOpeningFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\NoBlankLinesAfterPhpdocFixer: ~
-  PhpCsFixer\Fixer\Comment\NoEmptyCommentFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\NoEmptyPhpdocFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocSeparationFixer: ~
-  PhpCsFixer\Fixer\Semicolon\NoEmptyStatementFixer: ~
-  PhpCsFixer\Fixer\Whitespace\NoExtraBlankLinesFixer:
-    tokens:
-      - curly_brace_block
-      - extra
-      - parenthesis_brace_block
-      - square_brace_block
-      - throw
-      - use
-  PhpCsFixer\Fixer\NamespaceNotation\NoLeadingNamespaceWhitespaceFixer: ~
-  PhpCsFixer\Fixer\ArrayNotation\NoMultilineWhitespaceAroundDoubleArrowFixer: ~
-  PhpCsFixer\Fixer\CastNotation\NoShortBoolCastFixer: ~
-  PhpCsFixer\Fixer\Semicolon\NoSinglelineWhitespaceBeforeSemicolonsFixer: ~
-  PhpCsFixer\Fixer\Whitespace\NoSpacesAroundOffsetFixer: ~
-  PhpCsFixer\Fixer\ControlStructure\NoTrailingCommaInListCallFixer: ~
-  PhpCsFixer\Fixer\ArrayNotation\NoTrailingCommaInSinglelineArrayFixer: ~
-  PhpCsFixer\Fixer\ArrayNotation\TrailingCommaInMultilineArrayFixer: ~
-  PhpCsFixer\Fixer\ControlStructure\NoUnneededControlParenthesesFixer: ~
-  PhpCsFixer\Fixer\ArrayNotation\NoWhitespaceBeforeCommaInArrayFixer: ~
-  PhpCsFixer\Fixer\Whitespace\NoWhitespaceInBlankLineFixer: ~
-  PhpCsFixer\Fixer\ArrayNotation\NormalizeIndexBraceFixer: ~
-  PhpCsFixer\Fixer\Operator\ObjectOperatorWithoutWhitespaceFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocAnnotationWithoutDotFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocIndentFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocInlineTagFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocNoAccessFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocNoEmptyReturnFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocNoPackageFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocNoUselessInheritdocFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocReturnSelfReferenceFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocScalarFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocSingleLineVarSpacingFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocSummaryFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocToCommentFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocTrimFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocTypesFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocVarWithoutNameFixer: ~
-  PhpCsFixer\Fixer\FunctionNotation\ReturnTypeDeclarationFixer: ~
-  PhpCsFixer\Fixer\ClassNotation\SelfAccessorFixer: ~
-  PhpCsFixer\Fixer\CastNotation\ShortScalarCastFixer: ~
-  PhpCsFixer\Fixer\StringNotation\SingleQuoteFixer: ~
-  PhpCsFixer\Fixer\Semicolon\SpaceAfterSemicolonFixer: ~
-  PhpCsFixer\Fixer\Operator\StandardizeNotEqualsFixer: ~
-  PhpCsFixer\Fixer\Operator\TernaryOperatorSpacesFixer: ~
-  PhpCsFixer\Fixer\ArrayNotation\TrimArraySpacesFixer: ~
-  PhpCsFixer\Fixer\ArrayNotation\WhitespaceAfterCommaInArrayFixer: ~
-  PhpCsFixer\Fixer\ClassNotation\ClassDefinitionFixer:
-    singleLine: true
-  PhpCsFixer\Fixer\Casing\MagicConstantCasingFixer: ~
-  PhpCsFixer\Fixer\Alias\NoMixedEchoPrintFixer:
-    use: echo
-  PhpCsFixer\Fixer\Import\NoLeadingImportSlashFixer: ~
-  PhpCsFixer\Fixer\Import\NoUnusedImportsFixer: ~
-  PhpCsFixer\Fixer\PhpUnit\PhpUnitFqcnAnnotationFixer: ~
-  PhpCsFixer\Fixer\Phpdoc\PhpdocNoAliasTagFixer: ~
-  PhpCsFixer\Fixer\ClassNotation\ProtectedToPrivateFixer: ~
-  PhpCsFixer\Fixer\NamespaceNotation\SingleBlankLineBeforeNamespaceFixer: ~
-
-  # new since PHP-CS-Fixer 2.6
-  PhpCsFixer\Fixer\ControlStructure\NoUnneededCurlyBracesFixer: ~
-  PhpCsFixer\Fixer\ClassNotation\NoUnneededFinalMethodFixer: ~
-  PhpCsFixer\Fixer\Semicolon\SemicolonAfterInstructionFixer: ~
-  PhpCsFixer\Fixer\ControlStructure\YodaStyleFixer: ~
-
-  # new since 2.11
-  PhpCsFixer\Fixer\Operator\StandardizeIncrementFixer: ~