Version 4.0.13.1

2025-12-19 04:57:54 -08:00
1 parent f9e857d255
commit c6a86f0d9b
@@ -0,0 +1,138 @@
+<?php
+/**
+ * @brief		Captcha class for Form Builder
+ * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
+ * @copyright	(c) 2001 - SVN_YYYY Invision Power Services, Inc.
+ * @license		http://www.invisionpower.com/legal/standards/
+ * @package		IPS Social Suite
+ * @since		18 Apr 2013
+ * @version		SVN_VERSION_NUMBER
+ */
+
+namespace IPS\Helpers\Form;
+
+/* To prevent PHP errors (extending class does not exist) revealing path */
+if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
+{
+	header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
+	exit;
+}
+
+/**
+ * Captcha class for Form Builder
+ */
+class _Captcha extends FormAbstract
+{
+	/**
+	 * CAPTCHA Class
+	 */
+	protected $captcha = NULL;
+	
+	/**
+	 * Constructor
+	 *
+	 * @see		\IPS\Helpers\Form\Abstract::__construct
+	 * @return	void
+	 */
+	public function __construct()
+	{
+		$params = func_get_args();
+		if ( !isset( $params[0] ) )
+		{
+			$params[0] = 'captcha_field';
+		}
+		
+		if ( \IPS\Settings::i()->bot_antispam_type != 'none' )
+		{
+			$class = '\IPS\Helpers\Form\Captcha\\' . ucfirst( \IPS\Settings::i()->bot_antispam_type );
+			if ( !class_exists( $class ) )
+			{
+				\IPS\Output::i()->error( 'unexpected_captcha', '4S262/1', 500, 'unexpected_captcha_admin' );
+			}
+			$this->captcha = new $class;
+		}
+		
+		call_user_func_array( 'parent::__construct', $params );
+		$this->required = TRUE;
+	}
+	
+	/**
+	 * Get HTML
+	 *
+	 * @return	string
+	 */
+	public function __toString()
+	{
+		if ( $this->captcha === NULL )
+		{
+			return '';
+		}
+		return parent::__toString();
+	}
+	
+	/**
+	 * Get HTML
+	 *
+	 * @return	string
+	 */
+	public function html()
+	{
+		if ( $this->captcha === NULL )
+		{
+			return '';
+		}
+		return $this->captcha->getHtml();
+	}
+	
+	/**
+	 * Get Value
+	 *
+	 * @return	bool|null	TRUE/FALSE indicate if the test passed or not. NULL indicates the test failed, but the captcha system will display an error so we don't have to.
+	 */
+	public function getValue()
+	{
+		if ( $this->captcha === NULL )
+		{
+			return TRUE;
+		}
+		else
+		{
+			/* If we previously did an AJAX validate which is still valid, return true */
+			if ( isset( $_SESSION[ 'captcha-val-' . $this->name ] ) and $_SESSION[ 'captcha-val-' . $this->name ] > ( time() - 60 ) )
+			{
+				return TRUE;
+			}
+			/* Otherwise, check with service */
+			else
+			{
+				/* Check */
+				$return = $this->captcha->verify();
+				
+				/* If it's valid and we're doing an AJAX validate, save that in the session so the next request doesn't check again */
+				if ( $return and \IPS\Request::i()->isAjax() )
+				{
+					$_SESSION[ 'captcha-val-' . $this->name ] = time();
+				}
+				
+				/* Return */
+				return $return;
+			}
+		}
+	}
+	
+	/**
+	 * Validate
+	 *
+	 * @throws	\InvalidArgumentException
+	 * @return	TRUE
+	 */
+	public function validate()
+	{
+		if ( $this->value !== TRUE )
+		{
+			throw new \InvalidArgumentException( 'form_bad_captcha' );
+		}
+		
+		return TRUE;
+	}
+}