1 files changed, 72 insertions, 0 deletions
diff --git a/framework/Web/UI/WebControls/TReCaptchaValidator.php b/framework/Web/UI/WebControls/TReCaptchaValidator.php
new file mode 100644
index 00000000..ae94ea59
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+++ b/framework/Web/UI/WebControls/TReCaptchaValidator.php
@@ -0,0 +1,72 @@
+<?php
+
+/**
+ * TReCaptchaValidator class file
+ *
+ * @author Bérczi Gábor <gabor.berczi@devworx.hu>
+ * @link http://www.devworx.hu/
+ * @copyright Copyright &copy; 2011 DevWorx
+ * @license http://www.pradosoft.com/license/
+ * @package System.Web.UI.WebControls
+ */
+
+Prado::using('System.Web.UI.WebControls.TBaseValidator');
+Prado::using('System.Web.UI.WebControls.TReCaptcha');
+
+/**
+ * TReCaptchaValidator class
+ *
+ * TReCaptchaValidator validates user input against a reCAPTCHA represented by
+ * a {@link TReCaptcha} control. The input control fails validation if its value
+ * is not the same as the token displayed in reCAPTCHA. Note, if the user does
+ * not enter any thing, it is still considered as failing the validation.
+ *
+ * To use TReCaptchaValidator, specify the {@link setControlToValidate ControlToValidate}
+ * to be the ID path of the {@link TReCaptcha} control.
+ *
+ * @author Bérczi Gábor <gabor.berczi@devworx.hu>
+ * @package System.Web.UI.WebControls
+ * @since 3.2
+ */
+class TReCaptchaValidator extends TBaseValidator
+{
+	protected $_isvalid = null;
+
+	/**
+	 * Gets the name of the javascript class responsible for performing validation for this control.
+	 * This method overrides the parent implementation.
+	 * @return string the javascript class name
+	 */
+	protected function getClientClassName()
+	{
+		return '';
+	}
+
+	public function getEnableClientScript()
+	{
+		return false;
+	}
+
+	/**
+	 * This method overrides the parent's implementation.
+	 * The validation succeeds if the input control has the same value
+	 * as the one displayed in the corresponding RECAPTCHA control.
+	 *
+	 * @return boolean whether the validation succeeds
+	 */
+	protected function evaluateIsValid()
+	{
+		// check validity only once (if trying to evaluate multiple times, all redundant checks would fail)
+		if (is_null($this->_isvalid))
+		{
+			$control = $this->getValidationTarget();
+			if(!($control instanceof TCaptcha))
+				throw new TConfigurationException('recaptchavalidator_captchacontrol_invalid');
+			$this->_isvalid = $control->validate();
+		}
+		return ($this->_isvalid==true);
+	}
+
+}
+
+?>
+\ No newline at end of file