commit
99a6b9d8b1
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@ -25,6 +25,8 @@ class Configuration implements ConfigurationInterface
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->scalarNode('as_file')->defaultValue(false)->end()
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->scalarNode('image_folder')->defaultValue('captcha')->end()
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->scalarNode('web_path')->defaultValue('%kernel.root_dir%/../web')->end()
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->scalarNode('gc_freq')->defaultValue(100)->end()
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->scalarNode('expiration')->defaultValue(60)->end()
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->end()
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;
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return $treeBuilder;
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@ -25,6 +25,8 @@ class GregwarCaptchaExtension extends Extension
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$container->setParameter('gregwar_captcha.as_file', $config['as_file']);
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$container->setParameter('gregwar_captcha.image_folder', $config['image_folder']);
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$container->setParameter('gregwar_captcha.web_path', $config['web_path']);
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$container->setParameter('gregwar_captcha.gc_freq', $config['gc_freq']);
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$container->setParameter('gregwar_captcha.expiration', $config['expiration']);
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$resources = $container->getParameter('twig.form.resources');
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$container->setParameter('twig.form.resources',array_merge(array('GregwarCaptchaBundle::captcha.html.twig'), $resources));
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@ -9,15 +9,43 @@ use Symfony\Component\Finder\Finder;
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*/
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class CaptchaGenerator {
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/**
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* Name of folder for captcha images
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* @var string
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*/
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public $imageFolder;
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/**
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* Absolute path to public web folder
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* @var string
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*/
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public $webPath;
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/**
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* Frequence of garbage collection in fractions of 1
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* @var int
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*/
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public $gcFreq;
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/**
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* Maximum age of images in minutes
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* @var int
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*/
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public $expiration;
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/**
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* The captcha code
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* @var string
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*/
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public $value;
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public function __construct($value, $imageFolder, $webPath)
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public function __construct($value, $imageFolder, $webPath, $gcFreq, $expiration)
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{
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$this->value = $value;
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$this->imageFolder = $imageFolder;
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$this->webPath = $webPath;
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$this->gcFreq = intval($gcFreq);
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$this->expiration = intval($expiration);
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}
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public function getCode($width = 120, $height = 40)
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@ -35,7 +63,7 @@ class CaptchaGenerator {
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*/
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public function getFile($width = 120, $height = 40)
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{
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if (rand(0, 10) == 5) {
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if (mt_rand(1, $this->gcFreq) == 1) {
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$this->garbageCollection();
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}
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@ -51,12 +79,13 @@ class CaptchaGenerator {
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public function garbageCollection()
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{
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$finder = new Finder();
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$criteria = sprintf('>= now - %s minutes', $this->expiration);
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$finder->in($this->webPath . '/' . $this->imageFolder)
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->date('since 10 minutes ago');
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->date($criteria);
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foreach($finder->files() as $file)
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{
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@unlink($file->getPathname());
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unlink($file->getPathname());
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}
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}
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@ -133,6 +162,10 @@ class CaptchaGenerator {
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imagejpeg($out, null, 15);
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return ob_get_clean();
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} else {
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// Check if folder exists and create it if not
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if (!file_exists($this->webPath . '/' . $this->imageFolder)) {
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mkdir($this->webPath . '/' . $this->imageFolder, 0755);
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}
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$filename = md5(uniqid()) . '.jpg';
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$filepath = $this->webPath . '/' . $this->imageFolder . '/' . $filename;
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imagejpeg($out, $filepath, 15);
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@ -103,6 +103,8 @@ You can define the following type option :
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* **as_file**: if set to true an image file will be created instead of embedding to please IE6/7 (default=false)
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* **image_folder**: name of folder for captcha images relative to public web folder in case **as_file** ist set to true (default="captcha")
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* **web_path**: absolute path to public web folder (default="%kernel.root_dir%/../web")
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* **gc_freq**: frequency of garbage collection in fractions of 1 (default=100)
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* **expiration**: maximum lifetime of captcha image files in minutes (default=60)
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Example :
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@ -142,8 +144,8 @@ The default rendering is:
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Image creation
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==============
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If you choose to use real images instead of embedded the widget will execute a garbage collection
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randomly and delete images that are older than 10 minutes.
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If you choose to use image files instead of embedding the widget will execute a garbage collection
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randomly and delete images that exceed the configured lifetime.
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License
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=======
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@ -3,6 +3,6 @@ services:
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# captcha type
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captcha.type:
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class: Gregwar\CaptchaBundle\Type\CaptchaType
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arguments: [ "@session", %gregwar_captcha.width%, %gregwar_captcha.height%, %gregwar_captcha.length%, %gregwar_captcha.as_file%, %gregwar_captcha.image_folder%, %gregwar_captcha.web_path% ]
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arguments: [ "@session", %gregwar_captcha.width%, %gregwar_captcha.height%, %gregwar_captcha.length%, %gregwar_captcha.as_file%, %gregwar_captcha.image_folder%, %gregwar_captcha.web_path%, %gregwar_captcha.gc_freq%, %gregwar_captcha.expiration% ]
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tags:
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- { name: form.type, alias: captcha }
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@ -58,6 +58,18 @@ class CaptchaType extends AbstractType
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*/
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protected $webPath;
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/**
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* Frequence of garbage collection in fractions of 1
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* @var int
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*/
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public $gcFreq;
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/**
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* Maximum age of images in minutes
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* @var int
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*/
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public $expiration;
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/**
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* The session
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* @var Symfony\Component\HttpFoundation\Session
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private $key = 'captcha';
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public function __construct(Session $session, $width, $height, $length, $asFile, $imageFolder, $webPath)
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public function __construct(Session $session, $width, $height, $length, $asFile, $imageFolder, $webPath, $gcFreq, $expiration)
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{
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$this->session = $session;
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$this->width = $width;
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$this->asFile = $asFile;
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$this->imageFolder = $imageFolder;
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$this->webPath = $webPath;
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$this->gcFreq = $gcFreq;
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$this->expiration = $expiration;
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}
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public function buildForm(FormBuilder $builder, array $options)
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@ -87,7 +101,7 @@ class CaptchaType extends AbstractType
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public function buildView(FormView $view, FormInterface $form)
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{
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$generator = new CaptchaGenerator($this->generateCaptchaValue(), $this->imageFolder, $this->webPath);
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$generator = new CaptchaGenerator($this->generateCaptchaValue(), $this->imageFolder, $this->webPath, $this->gcFreq, $this->expiration);
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if ($this->asFile) {
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$view->set('captcha_code', $generator->getFile($this->width, $this->height));
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Loading…
Reference in New Issue