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<?php |
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namespace Shetabit\Captcha; |
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use Shetabit\Captcha\Contracts\DriverInterface; |
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use Shetabit\Captcha\Exceptions\DriverNotFoundException; |
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use Shetabit\Captcha\Provider\CaptchaServiceProvider; |
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class CaptchaManager |
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{ |
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protected $serviceProvider; |
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/** |
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* Captcha Configuration. |
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* |
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* @var array |
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*/ |
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protected $config; |
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/** |
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* Captcha Driver Settings. |
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* |
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* @var array |
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*/ |
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protected $settings; |
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/** |
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* Captcha Driver Name. |
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* |
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* @var string |
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*/ |
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protected $driver; |
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/** |
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* Captcha Driver Instance. |
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* |
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* @var object |
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*/ |
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protected $driverInstance; |
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/** |
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* CaptchaManager constructor. |
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* |
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* CaptchaManager constructor. |
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* @param CaptchaServiceProvider $serviceProvider |
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* @param $config |
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* @throws \Exception |
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*/ |
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public function __construct(CaptchaServiceProvider $serviceProvider, $config) |
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{ |
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$this->serviceProvider = $serviceProvider; |
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$this->config = $config; |
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$this->via($this->config['default']); |
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} |
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/** |
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* Set driver. |
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* |
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* @param $driver |
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* @return $this |
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* @throws \Exception |
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*/ |
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private function via($driver) |
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{ |
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$this->driver = $driver; |
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$this->validateDriver(); |
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$this->settings = $this->config['drivers'][$driver]; |
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return $this; |
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} |
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/** |
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* Prepare driver's instance to load requirements if needed. |
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* |
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* @return mixed|object |
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* @throws \Exception |
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*/ |
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public function prepareDriver() |
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{ |
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$this->driverInstance = $this->getDriverInstance(); |
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return $this->driverInstance; |
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} |
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/** |
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* Generate the captcha |
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* |
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* @return mixed |
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* @throws \Exception |
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*/ |
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public function generate() |
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{ |
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return $this->getDriverInstance()->generate(); |
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} |
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/** |
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* Verify CAPTCHA with given token. |
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* |
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* @param null|$token |
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* @return mixed |
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* @throws \Exception |
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*/ |
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public function verify($token = null) |
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{ |
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return $this->getDriverInstance()->verify($token); |
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} |
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/** |
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* Retrieve current driver instance or generate new one. |
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* |
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* @return mixed |
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* @throws \Exception |
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*/ |
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protected function getDriverInstance() |
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{ |
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if (!empty($this->driverInstance)) { |
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return $this->driverInstance; |
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} |
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return $this->getFreshDriverInstance(); |
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} |
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/** |
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* Get new driver instance |
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* |
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* @return mixed |
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* @throws \Exception |
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*/ |
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protected function getFreshDriverInstance() |
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{ |
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$this->validateDriver(); |
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$class = $this->config['map'][$this->driver]; |
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if (!empty($this->callbackUrl)) { // use custom callbackUrl if exists |
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$this->settings['callbackUrl'] = $this->callbackUrl; |
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} |
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return new $class($this->serviceProvider, $this->settings); |
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} |
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/** |
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* Validate driver. |
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* |
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* @throws \Exception |
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*/ |
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protected function validateDriver() |
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{ |
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if (empty($this->driver)) { |
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throw new DriverNotFoundException('Driver not selected or default driver does not exist.'); |
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} |
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if (empty($this->config['drivers'][$this->driver]) || empty($this->config['map'][$this->driver])) { |
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throw new DriverNotFoundException('Driver not found in config file. Try updating the package.'); |
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} |
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if (!class_exists($this->config['map'][$this->driver])) { |
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throw new DriverNotFoundException('Driver source not found. Please update the package.'); |
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} |
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$reflect = new \ReflectionClass($this->config['map'][$this->driver]); |
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if (!$reflect->implementsInterface(DriverInterface::class)) { |
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throw new \Exception("Driver must be an instance of Contracts\DriverInterface."); |
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} |
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} |
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} |
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shetabit /
captcha
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