import v1.0.0-RC4 | 2009-05-20
This commit is contained in:
76
libs/Zend/Captcha/Adapter.php
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76
libs/Zend/Captcha/Adapter.php
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@ -0,0 +1,76 @@
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<?php
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/**
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||||
* Zend Framework
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||||
*
|
||||
* LICENSE
|
||||
*
|
||||
* This source file is subject to the new BSD license that is bundled
|
||||
* with this package in the file LICENSE.txt.
|
||||
* It is also available through the world-wide-web at this URL:
|
||||
* http://framework.zend.com/license/new-bsd
|
||||
* If you did not receive a copy of the license and are unable to
|
||||
* obtain it through the world-wide-web, please send an email
|
||||
* to license@zend.com so we can send you a copy immediately.
|
||||
*
|
||||
* @category Zend
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||||
* @package Zend_Captcha
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* @subpackage Adapter
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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||||
*/
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||||
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/** Zend_Validate_Interface */
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require_once 'Zend/Validate/Interface.php';
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/**
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* Generic Captcha adapter interface
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*
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* Each specific captcha implementation should implement this interface
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*
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* @category Zend
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* @package Zend_Captcha
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* @subpackage Adapter
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: $
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*/
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interface Zend_Captcha_Adapter extends Zend_Validate_Interface
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{
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/**
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* Generate a new captcha
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*
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* @return string new captcha ID
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*/
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public function generate();
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/**
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* Display the captcha
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*
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* @param Zend_View_Interface $view
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* @param mixed $element
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* @return string
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*/
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public function render(Zend_View_Interface $view, $element = null);
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/**
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* Set captcha name
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*
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* @param string $name
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* @return Zend_Captcha_Adapter
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*/
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public function setName($name);
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/**
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* Get captcha name
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*
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* @return string
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*/
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public function getName();
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/**
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* Get optional private decorator for this captcha type
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*
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* @return Zend_Form_Decorator_Interface|string
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*/
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public function getDecorator();
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}
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176
libs/Zend/Captcha/Base.php
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176
libs/Zend/Captcha/Base.php
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@ -0,0 +1,176 @@
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<?php
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/**
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* Zend Framework
|
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*
|
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* LICENSE
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||||
*
|
||||
* This source file is subject to the new BSD license that is bundled
|
||||
* with this package in the file LICENSE.txt.
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||||
* It is also available through the world-wide-web at this URL:
|
||||
* http://framework.zend.com/license/new-bsd
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||||
* If you did not receive a copy of the license and are unable to
|
||||
* obtain it through the world-wide-web, please send an email
|
||||
* to license@zend.com so we can send you a copy immediately.
|
||||
*
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* @category Zend
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* @package Zend_Captcha
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* @subpackage Adapter
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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/** Zend_Captcha_Adapter */
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require_once 'Zend/Captcha/Adapter.php';
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/** Zend_Validate_Abstract */
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require_once 'Zend/Validate/Abstract.php';
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/**
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* Base class for Captcha adapters
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*
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* Provides some utility functionality to build on
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*
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* @category Zend
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* @package Zend_Captcha
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* @subpackage Adapter
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: $
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*/
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abstract class Zend_Captcha_Base extends Zend_Validate_Abstract implements Zend_Captcha_Adapter
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{
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/**
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* Element name
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*
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* Useful to generate/check form fields
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*
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* @var string
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*/
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protected $_name;
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/**
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* Captcha options
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*
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* @var array
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*/
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protected $_options = array();
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/**
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* Options to skip when processing options
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* @var array
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*/
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protected $_skipOptions = array(
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'options',
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'config',
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);
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/**
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* Get name
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*
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* @return string
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*/
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public function getName()
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{
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return $this->_name;
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}
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/**
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* Set name
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*
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* @param string $name
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*/
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public function setName($name)
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{
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$this->_name = $name;
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return $this;
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}
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/**
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* Constructor
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*
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* @param array|Zend_Config $options
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* @return void
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*/
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public function __construct($options = null)
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{
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// Set options
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if (is_array($options)) {
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$this->setOptions($options);
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} else if ($options instanceof Zend_Config) {
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$this->setConfig($options);
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}
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}
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/**
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* Set single option for the object
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*
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* @param string $key
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* @param string $value
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* @return Zend_Form_Element
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*/
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public function setOption($key, $value)
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{
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if (in_array(strtolower($key), $this->_skipOptions)) {
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return $this;
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}
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$method = 'set' . ucfirst ($key);
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if (method_exists ($this, $method)) {
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// Setter exists; use it
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$this->$method ($value);
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$this->_options[$key] = $value;
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} elseif (property_exists($this, $key)) {
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// Assume it's metadata
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$this->$key = $value;
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$this->_options[$key] = $value;
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}
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return $this;
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}
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/**
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* Set object state from options array
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*
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* @param array $options
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* @return Zend_Form_Element
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*/
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public function setOptions($options = null)
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{
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foreach ($options as $key => $value) {
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$this->setOption($key, $value);
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}
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return $this;
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}
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/**
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* Retrieve options representing object state
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*
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* @return array
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*/
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public function getOptions()
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{
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return $this->_options;
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}
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/**
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* Set object state from config object
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*
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* @param Zend_Config $config
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* @return Zend_Captcha_Base
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*/
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public function setConfig(Zend_Config $config)
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{
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return $this->setOptions($config->toArray());
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}
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/**
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* Get optional decorator
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||||
*
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* By default, return null, indicating no extra decorator needed.
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*
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||||
* @return null
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||||
*/
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||||
public function getDecorator()
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||||
{
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return null;
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||||
}
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||||
}
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52
libs/Zend/Captcha/Dumb.php
Normal file
52
libs/Zend/Captcha/Dumb.php
Normal file
@ -0,0 +1,52 @@
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<?php
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||||
/**
|
||||
* Zend Framework
|
||||
*
|
||||
* LICENSE
|
||||
*
|
||||
* This source file is subject to the new BSD license that is bundled
|
||||
* with this package in the file LICENSE.txt.
|
||||
* It is also available through the world-wide-web at this URL:
|
||||
* http://framework.zend.com/license/new-bsd
|
||||
* If you did not receive a copy of the license and are unable to
|
||||
* obtain it through the world-wide-web, please send an email
|
||||
* to license@zend.com so we can send you a copy immediately.
|
||||
*
|
||||
* @category Zend
|
||||
* @package Zend_Captcha
|
||||
* @subpackage Adapter
|
||||
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
*/
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/** Zend_Captcha_Word */
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require_once 'Zend/Captcha/Word.php';
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/**
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* Example dumb word-based captcha
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||||
*
|
||||
* Note that only rendering is necessary for word-based captcha
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||||
*
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||||
* @category Zend
|
||||
* @package Zend_Captcha
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||||
* @subpackage Adapter
|
||||
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
* @version $Id: $
|
||||
*/
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class Zend_Captcha_Dumb extends Zend_Captcha_Word
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{
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/**
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* Render the captcha
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||||
*
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||||
* @param Zend_View $view
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* @param mixed $element
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* @return string
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||||
*/
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||||
public function render(Zend_View_Interface $view, $element = null)
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||||
{
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return 'Please type this word backwards: <b>'
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||||
. strrev($this->getWord())
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||||
. '</b>';
|
||||
}
|
||||
}
|
||||
34
libs/Zend/Captcha/Exception.php
Executable file
34
libs/Zend/Captcha/Exception.php
Executable file
@ -0,0 +1,34 @@
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||||
<?php
|
||||
/**
|
||||
* Zend Framework
|
||||
*
|
||||
* LICENSE
|
||||
*
|
||||
* This source file is subject to the new BSD license that is bundled
|
||||
* with this package in the file LICENSE.txt.
|
||||
* It is also available through the world-wide-web at this URL:
|
||||
* http://framework.zend.com/license/new-bsd
|
||||
* If you did not receive a copy of the license and are unable to
|
||||
* obtain it through the world-wide-web, please send an email
|
||||
* to license@zend.com so we can send you a copy immediately.
|
||||
*
|
||||
* @category Zend
|
||||
* @package Zend_Captcha
|
||||
* @copyright Copyright (c) 2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||||
* @version $Id: Exception.php 8064 2008-02-16 10:58:39Z thomas $
|
||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
*/
|
||||
|
||||
require_once ('Zend/Exception.php');
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||||
|
||||
/**
|
||||
* Exception for Zend_Form component.
|
||||
*
|
||||
* @category Zend
|
||||
* @package Zend_Captcha
|
||||
* @copyright Copyright (c) 2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
*/
|
||||
class Zend_Captcha_Exception extends Zend_Exception
|
||||
{
|
||||
}
|
||||
85
libs/Zend/Captcha/Figlet.php
Normal file
85
libs/Zend/Captcha/Figlet.php
Normal file
@ -0,0 +1,85 @@
|
||||
<?php
|
||||
/**
|
||||
* Zend Framework
|
||||
*
|
||||
* LICENSE
|
||||
*
|
||||
* This source file is subject to the new BSD license that is bundled
|
||||
* with this package in the file LICENSE.txt.
|
||||
* It is also available through the world-wide-web at this URL:
|
||||
* http://framework.zend.com/license/new-bsd
|
||||
* If you did not receive a copy of the license and are unable to
|
||||
* obtain it through the world-wide-web, please send an email
|
||||
* to license@zend.com so we can send you a copy immediately.
|
||||
*
|
||||
* @category Zend
|
||||
* @package Zend_Captcha
|
||||
* @subpackage Adapter
|
||||
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
*/
|
||||
|
||||
/** Zend_Captcha_Word */
|
||||
require_once 'Zend/Captcha/Word.php';
|
||||
|
||||
/** Zend_Text_Figlet */
|
||||
require_once 'Zend/Text/Figlet.php';
|
||||
|
||||
/**
|
||||
* Captcha based on figlet text rendering service
|
||||
*
|
||||
* Note that this engine seems not to like numbers
|
||||
*
|
||||
* @category Zend
|
||||
* @package Zend_Captcha
|
||||
* @subpackage Adapter
|
||||
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
* @version $Id: $
|
||||
*/
|
||||
class Zend_Captcha_Figlet extends Zend_Captcha_Word
|
||||
{
|
||||
/**
|
||||
* Figlet text renderer
|
||||
*
|
||||
* @var Zend_Text_Figlet
|
||||
*/
|
||||
protected $_figlet;
|
||||
|
||||
/**
|
||||
* Constructor
|
||||
*
|
||||
* @param null|string|array|Zend_Config $options
|
||||
* @return void
|
||||
*/
|
||||
public function __construct($options = null)
|
||||
{
|
||||
parent::__construct($options);
|
||||
$this->_figlet = new Zend_Text_Figlet($options);
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate new captcha
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function generate()
|
||||
{
|
||||
$this->_useNumbers = false;
|
||||
return parent::generate();
|
||||
}
|
||||
|
||||
/**
|
||||
* Display the captcha
|
||||
*
|
||||
* @param Zend_View $view
|
||||
* @param mixed $element
|
||||
* @return string
|
||||
*/
|
||||
public function render(Zend_View_Interface $view, $element = null)
|
||||
{
|
||||
return '<pre>'
|
||||
. $this->_figlet->render($this->getWord())
|
||||
. "</pre>\n";
|
||||
}
|
||||
}
|
||||
589
libs/Zend/Captcha/Image.php
Normal file
589
libs/Zend/Captcha/Image.php
Normal file
@ -0,0 +1,589 @@
|
||||
<?php
|
||||
/**
|
||||
* Zend Framework
|
||||
*
|
||||
* LICENSE
|
||||
*
|
||||
* This source file is subject to the new BSD license that is bundled
|
||||
* with this package in the file LICENSE.txt.
|
||||
* It is also available through the world-wide-web at this URL:
|
||||
* http://framework.zend.com/license/new-bsd
|
||||
* If you did not receive a copy of the license and are unable to
|
||||
* obtain it through the world-wide-web, please send an email
|
||||
* to license@zend.com so we can send you a copy immediately.
|
||||
*
|
||||
* @category Zend
|
||||
* @package Zend_Captcha
|
||||
* @subpackage Adapter
|
||||
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
*/
|
||||
|
||||
/** Zend_Captcha_Word */
|
||||
require_once 'Zend/Captcha/Word.php';
|
||||
|
||||
/**
|
||||
* Image-based captcha element
|
||||
*
|
||||
* Generates image displaying random word
|
||||
*
|
||||
* @category Zend
|
||||
* @package Zend_Captcha
|
||||
* @subpackage Adapter
|
||||
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
* @version $Id: $
|
||||
*/
|
||||
class Zend_Captcha_Image extends Zend_Captcha_Word
|
||||
{
|
||||
/**
|
||||
* Directory for generated images
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $_imgDir = "./images/captcha/";
|
||||
|
||||
/**
|
||||
* URL for accessing images
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $_imgUrl = "/images/captcha/";
|
||||
|
||||
/**
|
||||
* Image's alt tag content
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $_imgAlt = "";
|
||||
|
||||
/**
|
||||
* Image suffix (including dot)
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $_suffix = ".png";
|
||||
|
||||
/**
|
||||
* Image width
|
||||
*
|
||||
* @var int
|
||||
*/
|
||||
protected $_width = 200;
|
||||
|
||||
/**
|
||||
* Image height
|
||||
*
|
||||
* @var int
|
||||
*/
|
||||
protected $_height = 50;
|
||||
|
||||
/**
|
||||
* Font size
|
||||
*
|
||||
* @var int
|
||||
*/
|
||||
protected $_fsize = 24;
|
||||
|
||||
/**
|
||||
* Image font file
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $_font;
|
||||
|
||||
/**
|
||||
* Image to use as starting point
|
||||
* Default is blank image. If ptovided, should be PNG image.
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $_startImage;
|
||||
/**
|
||||
* How frequently to execute garbage collection
|
||||
*
|
||||
* @var int
|
||||
*/
|
||||
protected $_gcFreq = 10;
|
||||
|
||||
/**
|
||||
* How long to keep generated images
|
||||
*
|
||||
* @var int
|
||||
*/
|
||||
protected $_expiration = 600;
|
||||
|
||||
/**
|
||||
* Number of noise dots on image
|
||||
* Used twice - before and after transform
|
||||
*
|
||||
* @var int
|
||||
*/
|
||||
protected $_dotNoiseLevel = 100;
|
||||
/**
|
||||
* Number of noise lines on image
|
||||
* Used twice - before and after transform
|
||||
*
|
||||
* @var int
|
||||
*/
|
||||
protected $_lineNoiseLevel = 5;
|
||||
/**
|
||||
* @return string
|
||||
*/
|
||||
public function getImgAlt ()
|
||||
{
|
||||
return $this->_imgAlt;
|
||||
}
|
||||
/**
|
||||
* @return string
|
||||
*/
|
||||
public function getStartImage ()
|
||||
{
|
||||
return $this->_startImage;
|
||||
}
|
||||
/**
|
||||
* @return int
|
||||
*/
|
||||
public function getDotNoiseLevel ()
|
||||
{
|
||||
return $this->_dotNoiseLevel;
|
||||
}
|
||||
/**
|
||||
* @return int
|
||||
*/
|
||||
public function getLineNoiseLevel ()
|
||||
{
|
||||
return $this->_lineNoiseLevel;
|
||||
}
|
||||
/**
|
||||
* Get captcha expiration
|
||||
*
|
||||
* @return int
|
||||
*/
|
||||
public function getExpiration()
|
||||
{
|
||||
return $this->_expiration;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get garbage collection frequency
|
||||
*
|
||||
* @return int
|
||||
*/
|
||||
public function getGcFreq()
|
||||
{
|
||||
return $this->_gcFreq;
|
||||
}
|
||||
/**
|
||||
* Get font to use when generating captcha
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function getFont()
|
||||
{
|
||||
return $this->_font;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get font size
|
||||
*
|
||||
* @return int
|
||||
*/
|
||||
public function getFontSize()
|
||||
{
|
||||
return $this->_fsize;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get captcha image height
|
||||
*
|
||||
* @return int
|
||||
*/
|
||||
public function getHeight()
|
||||
{
|
||||
return $this->_height;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get captcha image directory
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function getImgDir()
|
||||
{
|
||||
return $this->_imgDir;
|
||||
}
|
||||
/**
|
||||
* Get captcha image base URL
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function getImgUrl()
|
||||
{
|
||||
return $this->_imgUrl;
|
||||
}
|
||||
/**
|
||||
* Get captcha image file suffix
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function getSuffix()
|
||||
{
|
||||
return $this->_suffix;
|
||||
}
|
||||
/**
|
||||
* Get captcha image width
|
||||
*
|
||||
* @return int
|
||||
*/
|
||||
public function getWidth()
|
||||
{
|
||||
return $this->_width;
|
||||
}
|
||||
/**
|
||||
* @param string $startImage
|
||||
*/
|
||||
public function setStartImage ($startImage)
|
||||
{
|
||||
$this->_startImage = $startImage;
|
||||
return $this;
|
||||
}
|
||||
/**
|
||||
* @param int $dotNoiseLevel
|
||||
*/
|
||||
public function setDotNoiseLevel ($dotNoiseLevel)
|
||||
{
|
||||
$this->_dotNoiseLevel = $dotNoiseLevel;
|
||||
return $this;
|
||||
}
|
||||
/**
|
||||
* @param int $lineNoiseLevel
|
||||
*/
|
||||
public function setLineNoiseLevel ($lineNoiseLevel)
|
||||
{
|
||||
$this->_lineNoiseLevel = $lineNoiseLevel;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set captcha expiration
|
||||
*
|
||||
* @param int $expiration
|
||||
* @return Zend_Captcha_Image
|
||||
*/
|
||||
public function setExpiration($expiration)
|
||||
{
|
||||
$this->_expiration = $expiration;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set garbage collection frequency
|
||||
*
|
||||
* @param int $gcFreq
|
||||
* @return Zend_Captcha_Image
|
||||
*/
|
||||
public function setGcFreq($gcFreq)
|
||||
{
|
||||
$this->_gcFreq = $gcFreq;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set captcha font
|
||||
*
|
||||
* @param string $font
|
||||
* @return Zend_Captcha_Image
|
||||
*/
|
||||
public function setFont($font)
|
||||
{
|
||||
$this->_font = $font;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set captcha font size
|
||||
*
|
||||
* @param int $fsize
|
||||
* @return Zend_Captcha_Image
|
||||
*/
|
||||
public function setFontSize($fsize)
|
||||
{
|
||||
$this->_fsize = $fsize;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set captcha image height
|
||||
*
|
||||
* @param int $height
|
||||
* @return Zend_Captcha_Image
|
||||
*/
|
||||
public function setHeight($height)
|
||||
{
|
||||
$this->_height = $height;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set captcha image storage directory
|
||||
*
|
||||
* @param string $imgDir
|
||||
* @return Zend_Captcha_Image
|
||||
*/
|
||||
public function setImgDir($imgDir)
|
||||
{
|
||||
$this->_imgDir = rtrim($imgDir, "/\\") . '/';
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set captcha image base URL
|
||||
*
|
||||
* @param string $imgUrl
|
||||
* @return Zend_Captcha_Image
|
||||
*/
|
||||
public function setImgUrl($imgUrl)
|
||||
{
|
||||
$this->_imgUrl = rtrim($imgUrl, "/\\") . '/';
|
||||
return $this;
|
||||
}
|
||||
/**
|
||||
* @param string $imgAlt
|
||||
*/
|
||||
public function setImgAlt ($imgAlt)
|
||||
{
|
||||
$this->_imgAlt = $imgAlt;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set captch image filename suffix
|
||||
*
|
||||
* @param string $suffix
|
||||
* @return Zend_Captcha_Image
|
||||
*/
|
||||
public function setSuffix($suffix)
|
||||
{
|
||||
$this->_suffix = $suffix;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set captcha image width
|
||||
*
|
||||
* @param int $width
|
||||
* @return Zend_Captcha_Image
|
||||
*/
|
||||
public function setWidth($width)
|
||||
{
|
||||
$this->_width = $width;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate random frequency
|
||||
*
|
||||
* @return float
|
||||
*/
|
||||
protected function _randomFreq()
|
||||
{
|
||||
return mt_rand(700000, 1000000) / 15000000;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate random phase
|
||||
*
|
||||
* @return float
|
||||
*/
|
||||
protected function _randomPhase()
|
||||
{
|
||||
// random phase from 0 to pi
|
||||
return mt_rand(0, 3141592) / 1000000;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate random character size
|
||||
*
|
||||
* @return int
|
||||
*/
|
||||
protected function _randomSize()
|
||||
{
|
||||
return mt_rand(300, 700) / 100;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate captcha
|
||||
*
|
||||
* @return string captcha ID
|
||||
*/
|
||||
public function generate()
|
||||
{
|
||||
$id = parent::generate();
|
||||
$this->_generateImage($id, $this->getWord());
|
||||
|
||||
if (mt_rand(0, $this->getGcFreq()) == 1) {
|
||||
$this->_gc();
|
||||
}
|
||||
return $id;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate image captcha
|
||||
*
|
||||
* Override this function if you want different image generator
|
||||
* Wave transform from http://www.captcha.ru/captchas/multiwave/
|
||||
*
|
||||
* @param string $id Captcha ID
|
||||
* @param string $word Captcha word
|
||||
*/
|
||||
protected function _generateImage($id, $word)
|
||||
{
|
||||
if (!extension_loaded("gd")) {
|
||||
require_once 'Zend/Captcha/Exception.php';
|
||||
throw new Zend_Captcha_Exception("Image CAPTCHA requires GD extension");
|
||||
}
|
||||
|
||||
if (!function_exists("imagepng")) {
|
||||
require_once 'Zend/Captcha/Exception.php';
|
||||
throw new Zend_Captcha_Exception("Image CAPTCHA requires PNG support");
|
||||
}
|
||||
|
||||
if (!function_exists("imageftbbox")) {
|
||||
require_once 'Zend/Captcha/Exception.php';
|
||||
throw new Zend_Captcha_Exception("Image CAPTCHA requires FT fonts support");
|
||||
}
|
||||
|
||||
$font = $this->getFont();
|
||||
|
||||
if (empty($font)) {
|
||||
require_once 'Zend/Captcha/Exception.php';
|
||||
throw new Zend_Captcha_Exception("Image CAPTCHA requires font");
|
||||
}
|
||||
|
||||
$w = $this->getWidth();
|
||||
$h = $this->getHeight();
|
||||
$fsize = $this->getFontSize();
|
||||
|
||||
$img_file = $this->getImgDir() . $id . $this->getSuffix();
|
||||
if(empty($this->_startImage)) {
|
||||
$img = imagecreatetruecolor($w, $h);
|
||||
} else {
|
||||
$img = imagecreatefrompng($this->_startImage);
|
||||
if(!$img) {
|
||||
require_once 'Zend/Captcha/Exception.php';
|
||||
throw new Zend_Captcha_Exception("Can not load start image");
|
||||
}
|
||||
$w = imagesx($img);
|
||||
$h = imagesy($img);
|
||||
}
|
||||
$text_color = imagecolorallocate($img, 0, 0, 0);
|
||||
$bg_color = imagecolorallocate($img, 255, 255, 255);
|
||||
imagefilledrectangle($img, 0, 0, $w-1, $h-1, $bg_color);
|
||||
$textbox = imageftbbox($fsize, 0, $font, $word);
|
||||
$x = ($w - ($textbox[2] - $textbox[0])) / 2;
|
||||
$y = ($h - ($textbox[7] - $textbox[1])) / 2;
|
||||
imagefttext($img, $fsize, 0, $x, $y, $text_color, $font, $word);
|
||||
|
||||
// generate noise
|
||||
for ($i=0; $i<$this->_dotNoiseLevel; $i++) {
|
||||
imagefilledellipse($img, mt_rand(0,$w), mt_rand(0,$h), 2, 2, $text_color);
|
||||
}
|
||||
for($i=0; $i<$this->_lineNoiseLevel; $i++) {
|
||||
imageline($img, mt_rand(0,$w), mt_rand(0,$h), mt_rand(0,$w), mt_rand(0,$h), $text_color);
|
||||
}
|
||||
|
||||
// transformed image
|
||||
$img2 = imagecreatetruecolor($w, $h);
|
||||
$bg_color = imagecolorallocate($img2, 255, 255, 255);
|
||||
imagefilledrectangle($img2, 0, 0, $w-1, $h-1, $bg_color);
|
||||
// apply wave transforms
|
||||
$freq1 = $this->_randomFreq();
|
||||
$freq2 = $this->_randomFreq();
|
||||
$freq3 = $this->_randomFreq();
|
||||
$freq4 = $this->_randomFreq();
|
||||
|
||||
$ph1 = $this->_randomPhase();
|
||||
$ph2 = $this->_randomPhase();
|
||||
$ph3 = $this->_randomPhase();
|
||||
$ph4 = $this->_randomPhase();
|
||||
|
||||
$szx = $this->_randomSize();
|
||||
$szy = $this->_randomSize();
|
||||
|
||||
for ($x = 0; $x < $w; $x++) {
|
||||
for ($y = 0; $y < $h; $y++) {
|
||||
$sx = $x + (sin($x*$freq1 + $ph1) + sin($y*$freq3 + $ph3)) * $szx;
|
||||
$sy = $y + (sin($x*$freq2 + $ph2) + sin($y*$freq4 + $ph4)) * $szy;
|
||||
|
||||
if ($sx < 0 || $sy < 0 || $sx >= $w - 1 || $sy >= $h - 1) {
|
||||
continue;
|
||||
} else {
|
||||
$color = (imagecolorat($img, $sx, $sy) >> 16) & 0xFF;
|
||||
$color_x = (imagecolorat($img, $sx + 1, $sy) >> 16) & 0xFF;
|
||||
$color_y = (imagecolorat($img, $sx, $sy + 1) >> 16) & 0xFF;
|
||||
$color_xy = (imagecolorat($img, $sx + 1, $sy + 1) >> 16) & 0xFF;
|
||||
}
|
||||
if ($color == 255 && $color_x == 255 && $color_y == 255 && $color_xy == 255) {
|
||||
// ignore background
|
||||
continue;
|
||||
} elseif ($color == 0 && $color_x == 0 && $color_y == 0 && $color_xy == 0) {
|
||||
// transfer inside of the image as-is
|
||||
$newcolor = 0;
|
||||
} else {
|
||||
// do antialiasing for border items
|
||||
$frac_x = $sx-floor($sx);
|
||||
$frac_y = $sy-floor($sy);
|
||||
$frac_x1 = 1-$frac_x;
|
||||
$frac_y1 = 1-$frac_y;
|
||||
|
||||
$newcolor = $color * $frac_x1 * $frac_y1
|
||||
+ $color_x * $frac_x * $frac_y1
|
||||
+ $color_y * $frac_x1 * $frac_y
|
||||
+ $color_xy * $frac_x * $frac_y;
|
||||
}
|
||||
imagesetpixel($img2, $x, $y, imagecolorallocate($img2, $newcolor, $newcolor, $newcolor));
|
||||
}
|
||||
}
|
||||
|
||||
// generate noise
|
||||
for ($i=0; $i<$this->_dotNoiseLevel; $i++) {
|
||||
imagefilledellipse($img2, mt_rand(0,$w), mt_rand(0,$h), 2, 2, $text_color);
|
||||
}
|
||||
for ($i=0; $i<$this->_lineNoiseLevel; $i++) {
|
||||
imageline($img2, mt_rand(0,$w), mt_rand(0,$h), mt_rand(0,$w), mt_rand(0,$h), $text_color);
|
||||
}
|
||||
|
||||
imagepng($img2, $img_file);
|
||||
imagedestroy($img);
|
||||
imagedestroy($img2);
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove old files from image directory
|
||||
*
|
||||
*/
|
||||
protected function _gc()
|
||||
{
|
||||
$expire = time() - $this->getExpiration();
|
||||
foreach (new DirectoryIterator($this->getImgDir()) as $file) {
|
||||
if (!$file->isDot() && !$file->isDir()) {
|
||||
if ($file->getMTime() < $expire) {
|
||||
unlink($file->getPathname());
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Display the captcha
|
||||
*
|
||||
* @param Zend_View $view
|
||||
* @param mixed $element
|
||||
* @return string
|
||||
*/
|
||||
public function render(Zend_View_Interface $view, $element = null)
|
||||
{
|
||||
return '<img alt="'.$this->getImgAlt().'" src="' . $this->getImgUrl() . $this->getId() . $this->getSuffix() . '"/><br/>';
|
||||
}
|
||||
}
|
||||
259
libs/Zend/Captcha/ReCaptcha.php
Normal file
259
libs/Zend/Captcha/ReCaptcha.php
Normal file
@ -0,0 +1,259 @@
|
||||
<?php
|
||||
/**
|
||||
* Zend Framework
|
||||
*
|
||||
* LICENSE
|
||||
*
|
||||
* This source file is subject to the new BSD license that is bundled
|
||||
* with this package in the file LICENSE.txt.
|
||||
* It is also available through the world-wide-web at this URL:
|
||||
* http://framework.zend.com/license/new-bsd
|
||||
* If you did not receive a copy of the license and are unable to
|
||||
* obtain it through the world-wide-web, please send an email
|
||||
* to license@zend.com so we can send you a copy immediately.
|
||||
*
|
||||
* @category Zend
|
||||
* @package Zend_Captcha
|
||||
* @subpackage Adapter
|
||||
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
*/
|
||||
|
||||
/** Zend_Captcha_Base */
|
||||
require_once 'Zend/Captcha/Base.php';
|
||||
|
||||
/** Zend_Service_ReCaptcha */
|
||||
require_once 'Zend/Service/ReCaptcha.php';
|
||||
|
||||
/**
|
||||
* ReCaptcha adapter
|
||||
*
|
||||
* Allows to insert captchas driven by ReCaptcha service
|
||||
*
|
||||
* @see http://recaptcha.net/apidocs/captcha/
|
||||
*
|
||||
* @category Zend
|
||||
* @package Zend_Captcha
|
||||
* @subpackage Adapter
|
||||
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
* @version $Id: $
|
||||
*/
|
||||
class Zend_Captcha_ReCaptcha extends Zend_Captcha_Base
|
||||
{
|
||||
/**
|
||||
* Recaptcha public key
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $_pubkey;
|
||||
|
||||
/**
|
||||
* Recaptcha private key
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $_privkey;
|
||||
|
||||
/**@+
|
||||
* ReCaptcha Field names
|
||||
* @var string
|
||||
*/
|
||||
protected $_CHALLENGE = 'recaptcha_challenge_field';
|
||||
protected $_RESPONSE = 'recaptcha_response_field';
|
||||
/**@-*/
|
||||
|
||||
/**
|
||||
* Recaptcha service object
|
||||
*
|
||||
* @var Zend_Service_Recaptcha
|
||||
*/
|
||||
protected $_service;
|
||||
|
||||
/**
|
||||
* Parameters defined by the service
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
protected $_serviceParams = array();
|
||||
|
||||
/**#@+
|
||||
* Error codes
|
||||
* @const string
|
||||
*/
|
||||
const MISSING_VALUE = 'missingValue';
|
||||
const ERR_CAPTCHA = 'errCaptcha';
|
||||
const BAD_CAPTCHA = 'badCaptcha';
|
||||
/**#@-*/
|
||||
|
||||
/**
|
||||
* Error messages
|
||||
* @var array
|
||||
*/
|
||||
protected $_messageTemplates = array(
|
||||
self::MISSING_VALUE => 'Missing captcha fields',
|
||||
self::ERR_CAPTCHA => 'Failed to validate captcha',
|
||||
self::BAD_CAPTCHA => 'Captcha value is wrong: %value%',
|
||||
);
|
||||
|
||||
/**
|
||||
* Retrieve ReCaptcha Private key
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function getPrivkey()
|
||||
{
|
||||
return $this->_privkey;
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieve ReCaptcha Public key
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function getPubkey()
|
||||
{
|
||||
return $this->_pubkey;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set ReCaptcha Private key
|
||||
*
|
||||
* @param string $_privkey
|
||||
* @return Zend_Captcha_ReCaptcha
|
||||
*/
|
||||
public function setPrivkey($privkey)
|
||||
{
|
||||
$this->_privkey = $privkey;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set ReCaptcha public key
|
||||
*
|
||||
* @param string $_pubkey
|
||||
* @return Zend_Captcha_ReCaptcha
|
||||
*/
|
||||
public function setPubkey($pubkey)
|
||||
{
|
||||
$this->_pubkey = $pubkey;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructor
|
||||
*
|
||||
* @param array|Zend_Config $options
|
||||
* @return void
|
||||
*/
|
||||
public function __construct($options = null)
|
||||
{
|
||||
parent::__construct($options);
|
||||
|
||||
$this->setService(new Zend_Service_ReCaptcha($this->getPubKey(), $this->getPrivKey()));
|
||||
$this->_serviceParams = $this->getService()->getParams();
|
||||
|
||||
if ($options instanceof Zend_Config) {
|
||||
$options = $options->toArray();
|
||||
}
|
||||
if (!empty($options)) {
|
||||
$this->setOptions($options);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Set service object
|
||||
*
|
||||
* @param Zend_Service_ReCaptcha $service
|
||||
* @return Zend_Captcha_ReCaptcha
|
||||
*/
|
||||
public function setService(Zend_Service_ReCaptcha $service)
|
||||
{
|
||||
$this->_service = $service;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieve ReCaptcha service object
|
||||
*
|
||||
* @return Zend_Service_ReCaptcha
|
||||
*/
|
||||
public function getService()
|
||||
{
|
||||
return $this->_service;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set option
|
||||
*
|
||||
* If option is a service parameter, proxies to the service.
|
||||
*
|
||||
* @param string $key
|
||||
* @param mixed $value
|
||||
* @return Zend_Captcha_ReCaptcha
|
||||
*/
|
||||
public function setOption($key, $value)
|
||||
{
|
||||
$service = $this->getService();
|
||||
if (isset($this->_serviceParams[$key])) {
|
||||
$service->setParam($key, $value);
|
||||
return $this;
|
||||
}
|
||||
return parent::setOption($key, $value);
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate captcha
|
||||
*
|
||||
* @see Zend_Form_Captcha_Adapter::generate()
|
||||
* @return string
|
||||
*/
|
||||
public function generate()
|
||||
{
|
||||
return "";
|
||||
}
|
||||
|
||||
/**
|
||||
* Validate captcha
|
||||
*
|
||||
* @see Zend_Validate_Interface::isValid()
|
||||
* @param mixed $value
|
||||
* @return boolean
|
||||
*/
|
||||
public function isValid($value, $context = null)
|
||||
{
|
||||
if (empty($context[$this->_CHALLENGE]) || empty($context[$this->_RESPONSE])) {
|
||||
$this->_error(self::MISSING_VALUE);
|
||||
return false;
|
||||
}
|
||||
|
||||
$service = $this->getService();
|
||||
|
||||
$res = $service->verify($context[$this->_CHALLENGE], $context[$this->_RESPONSE]);
|
||||
|
||||
if (!$res) {
|
||||
$this->_error(self::ERR_CAPTCHA);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!$res->isValid()) {
|
||||
$this->_error(self::BAD_CAPTCHA, $res->getErrorCode());
|
||||
$service->setParam('error', $res->getErrorCode());
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Render captcha
|
||||
*
|
||||
* @param Zend_View $view
|
||||
* @param mixed $element
|
||||
* @return string
|
||||
*/
|
||||
public function render(Zend_View_Interface $view, $element = null)
|
||||
{
|
||||
return $this->getService()->getHTML();
|
||||
}
|
||||
}
|
||||
356
libs/Zend/Captcha/Word.php
Normal file
356
libs/Zend/Captcha/Word.php
Normal file
@ -0,0 +1,356 @@
|
||||
<?php
|
||||
/**
|
||||
* Zend Framework
|
||||
*
|
||||
* LICENSE
|
||||
*
|
||||
* This source file is subject to the new BSD license that is bundled
|
||||
* with this package in the file LICENSE.txt.
|
||||
* It is also available through the world-wide-web at this URL:
|
||||
* http://framework.zend.com/license/new-bsd
|
||||
* If you did not receive a copy of the license and are unable to
|
||||
* obtain it through the world-wide-web, please send an email
|
||||
* to license@zend.com so we can send you a copy immediately.
|
||||
*
|
||||
* @category Zend
|
||||
* @package Zend_Captcha
|
||||
* @subpackage Adapter
|
||||
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
*/
|
||||
|
||||
/** Zend_Captcha_Base */
|
||||
require_once 'Zend/Captcha/Base.php';
|
||||
|
||||
/**
|
||||
* Word-based captcha adapter
|
||||
*
|
||||
* Generates random word which user should recognise
|
||||
*
|
||||
* @category Zend
|
||||
* @package Zend_Captcha
|
||||
* @subpackage Adapter
|
||||
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||||
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||||
* @version $Id: $
|
||||
*/
|
||||
abstract class Zend_Captcha_Word extends Zend_Captcha_Base
|
||||
{
|
||||
/**#@+
|
||||
* @var array Character sets
|
||||
*/
|
||||
static $V = array("a", "e", "i", "o", "u", "y");
|
||||
static $VN = array("a", "e", "i", "o", "u", "y","2","3","4","5","6","7","8","9");
|
||||
static $C = array("b","c","d","f","g","h","j","k","m","n","p","q","r","s","t","u","v","w","x","z");
|
||||
static $CN = array("b","c","d","f","g","h","j","k","m","n","p","q","r","s","t","u","v","w","x","z","2","3","4","5","6","7","8","9");
|
||||
/**#@-*/
|
||||
|
||||
/**
|
||||
* Random session ID
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $_id;
|
||||
|
||||
/**
|
||||
* Generated word
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $_word;
|
||||
|
||||
/**
|
||||
* Session
|
||||
*
|
||||
* @var Zend_Session_Namespace
|
||||
*/
|
||||
protected $_session;
|
||||
|
||||
/**
|
||||
* Class name for sessions
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $_sessionClass = 'Zend_Session_Namespace';
|
||||
|
||||
/**
|
||||
* Should the numbers be used or only letters
|
||||
*
|
||||
* @var boolean
|
||||
*/
|
||||
protected $_useNumbers = true;
|
||||
|
||||
/**
|
||||
* Should both cases be used or only lowercase
|
||||
*
|
||||
* @var boolean
|
||||
*/
|
||||
// protected $_useCase = false;
|
||||
|
||||
/**
|
||||
* Session lifetime for the captcha data
|
||||
*
|
||||
* @var integer
|
||||
*/
|
||||
protected $_timeout = 300;
|
||||
|
||||
/**#@+
|
||||
* Error codes
|
||||
* @const string
|
||||
*/
|
||||
const MISSING_VALUE = 'missingValue';
|
||||
const MISSING_ID = 'missingID';
|
||||
const BAD_CAPTCHA = 'badCaptcha';
|
||||
/**#@-*/
|
||||
|
||||
/**
|
||||
* Error messages
|
||||
* @var array
|
||||
*/
|
||||
protected $_messageTemplates = array(
|
||||
self::MISSING_VALUE => 'Empty captcha value',
|
||||
self::MISSING_ID => 'Captcha ID field is missing',
|
||||
self::BAD_CAPTCHA => 'Captcha value is wrong',
|
||||
);
|
||||
|
||||
/**
|
||||
* Length of the word to generate
|
||||
*
|
||||
* @var integer
|
||||
*/
|
||||
protected $_wordlen = 8;
|
||||
|
||||
/**
|
||||
* Retrieve session class to utilize
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function getSessionClass()
|
||||
{
|
||||
return $this->_sessionClass;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set session class for persistence
|
||||
*
|
||||
* @param string $_sessionClass
|
||||
* @return Zend_Captcha_Word
|
||||
*/
|
||||
public function setSessionClass($_sessionClass)
|
||||
{
|
||||
$this->_sessionClass = $_sessionClass;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieve word length to use when genrating captcha
|
||||
*
|
||||
* @return integer
|
||||
*/
|
||||
public function getWordlen()
|
||||
{
|
||||
return $this->_wordlen;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set word length of captcha
|
||||
*
|
||||
* @param integer $wordlen
|
||||
* @return Zend_Captcha_Word
|
||||
*/
|
||||
public function setWordlen($wordlen)
|
||||
{
|
||||
$this->_wordlen = $wordlen;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieve captcha ID
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function getId ()
|
||||
{
|
||||
if (null === $this->_id) {
|
||||
$this->_setId($this->_generateRandomId());
|
||||
}
|
||||
return $this->_id;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set captcha identifier
|
||||
*
|
||||
* @param string $id
|
||||
* return Zend_Captcha_Word
|
||||
*/
|
||||
protected function _setId ($id)
|
||||
{
|
||||
$this->_id = $id;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set timeout for session token
|
||||
*
|
||||
* @param int $ttl
|
||||
* @return Zend_Captcha_Word
|
||||
*/
|
||||
public function setTimeout($ttl)
|
||||
{
|
||||
$this->_timeout = (int) $ttl;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get session token timeout
|
||||
*
|
||||
* @return int
|
||||
*/
|
||||
public function getTimeout()
|
||||
{
|
||||
return $this->_timeout;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get session object
|
||||
*
|
||||
* @return Zend_Session_Namespace
|
||||
*/
|
||||
public function getSession()
|
||||
{
|
||||
if (!isset($this->_session) || (null === $this->_session)) {
|
||||
$id = $this->getId();
|
||||
$this->_session = new $this->_sessionClass('Zend_Form_Captcha_' . $id);
|
||||
$this->_session->setExpirationHops(1, null, true);
|
||||
$this->_session->setExpirationSeconds($this->getTimeout());
|
||||
}
|
||||
return $this->_session;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set session namespace object
|
||||
*
|
||||
* @param Zend_Session_Namespace $session
|
||||
* @return Zend_Captcha_Word
|
||||
*/
|
||||
public function setSession(Zend_Session_Namespace $session)
|
||||
{
|
||||
$this->_session = $session;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get captcha word
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function getWord()
|
||||
{
|
||||
if (empty($this->_word)) {
|
||||
$session = $this->getSession();
|
||||
$this->_word = $session->word;
|
||||
}
|
||||
return $this->_word;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set captcha word
|
||||
*
|
||||
* @param string $word
|
||||
* @return Zend_Captcha_Word
|
||||
*/
|
||||
protected function _setWord($word)
|
||||
{
|
||||
$session = $this->getSession();
|
||||
$session->word = $word;
|
||||
$this->_word = $word;
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate new random word
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
protected function _generateWord()
|
||||
{
|
||||
$word = '';
|
||||
$wordLen = $this->getWordLen();
|
||||
$vowels = $this->_useNumbers ? self::$VN : self::$V;
|
||||
$consonants = $this->_useNumbers ? self::$CN : self::$C;
|
||||
|
||||
for ($i=0; $i < $wordLen; $i = $i + 2) {
|
||||
// generate word with mix of vowels and consonants
|
||||
$consonant = $consonants[array_rand($consonants)];
|
||||
$vowel = $vowels[array_rand($vowels)];
|
||||
$word .= $consonant . $vowel;
|
||||
}
|
||||
|
||||
if (strlen($word) > $wordLen) {
|
||||
$word = substr($word, 0, $wordLen);
|
||||
}
|
||||
|
||||
return $word;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate new session ID and new word
|
||||
*
|
||||
* @return string session ID
|
||||
*/
|
||||
public function generate()
|
||||
{
|
||||
$this->_session = null;
|
||||
$id = $this->_generateRandomId();
|
||||
$this->_setId($id);
|
||||
$word = $this->_generateWord();
|
||||
$this->_setWord($word);
|
||||
return $id;
|
||||
}
|
||||
|
||||
protected function _generateRandomId()
|
||||
{
|
||||
return md5(mt_rand(0, 1000) . microtime(true));
|
||||
}
|
||||
|
||||
/**
|
||||
* Validate the word
|
||||
*
|
||||
* @see Zend_Validate_Interface::isValid()
|
||||
* @param mixed $value
|
||||
* @return boolean
|
||||
*/
|
||||
public function isValid($value, $context = null)
|
||||
{
|
||||
$name = $this->getName();
|
||||
if (!isset($context[$name]['input'])) {
|
||||
$this->_error(self::MISSING_VALUE);
|
||||
return false;
|
||||
}
|
||||
$value = strtolower($context[$name]['input']);
|
||||
$this->_setValue($value);
|
||||
|
||||
if (!isset($context[$name]['id'])) {
|
||||
$this->_error(self::MISSING_ID);
|
||||
return false;
|
||||
}
|
||||
|
||||
$this->_id = $context[$name]['id'];
|
||||
if ($value !== $this->getWord()) {
|
||||
$this->_error(self::BAD_CAPTCHA);
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get captcha decorator
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function getDecorator()
|
||||
{
|
||||
return "Captcha_Word";
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user