8398c9048d
code was modified slightly, so the code differs from the original downloadable 1.9.5 version
304 lines
8.8 KiB
PHP
304 lines
8.8 KiB
PHP
<?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_Form
|
|
* @subpackage Element
|
|
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
* @version $Id: Captcha.php 17616 2009-08-15 03:28:29Z yoshida@zend.co.jp $
|
|
*/
|
|
|
|
/** @see Zend_Form_Element_Xhtml */
|
|
require_once 'Zend/Form/Element/Xhtml.php';
|
|
|
|
/** @see Zend_Captcha_Adapter */
|
|
require_once 'Zend/Captcha/Adapter.php';
|
|
|
|
/**
|
|
* Generic captcha element
|
|
*
|
|
* This element allows to insert CAPTCHA into the form in order
|
|
* to validate that human is submitting the form. The actual
|
|
* logic is contained in the captcha adapter.
|
|
*
|
|
* @see http://en.wikipedia.org/wiki/Captcha
|
|
*
|
|
* @category Zend
|
|
* @package Zend_Form
|
|
* @subpackage Element
|
|
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
*/
|
|
class Zend_Form_Element_Captcha extends Zend_Form_Element_Xhtml
|
|
{
|
|
/**
|
|
* Captcha plugin type constant
|
|
*/
|
|
const CAPTCHA = 'CAPTCHA';
|
|
|
|
/**
|
|
* Captcha adapter
|
|
*
|
|
* @var Zend_Captcha_Adapter
|
|
*/
|
|
protected $_captcha;
|
|
|
|
/**
|
|
* Get captcha adapter
|
|
*
|
|
* @return Zend_Captcha_Adapter
|
|
*/
|
|
public function getCaptcha()
|
|
{
|
|
return $this->_captcha;
|
|
}
|
|
|
|
/**
|
|
* Set captcha adapter
|
|
*
|
|
* @param string|array|Zend_Captcha_Adapter $captcha
|
|
* @param array $options
|
|
*/
|
|
public function setCaptcha($captcha, $options = array())
|
|
{
|
|
if ($captcha instanceof Zend_Captcha_Adapter) {
|
|
$instance = $captcha;
|
|
} else {
|
|
if (is_array($captcha)) {
|
|
if (array_key_exists('captcha', $captcha)) {
|
|
$name = $captcha['captcha'];
|
|
unset($captcha['captcha']);
|
|
} else {
|
|
$name = array_shift($captcha);
|
|
}
|
|
$options = array_merge($options, $captcha);
|
|
} else {
|
|
$name = $captcha;
|
|
}
|
|
|
|
$name = $this->getPluginLoader(self::CAPTCHA)->load($name);
|
|
if (empty($options)) {
|
|
$instance = new $name;
|
|
} else {
|
|
$r = new ReflectionClass($name);
|
|
if ($r->hasMethod('__construct')) {
|
|
$instance = $r->newInstanceArgs(array($options));
|
|
} else {
|
|
$instance = $r->newInstance();
|
|
}
|
|
}
|
|
}
|
|
|
|
$this->_captcha = $instance;
|
|
$this->_captcha->setName($this->getName());
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* $spec may be:
|
|
* - string: name of element
|
|
* - array: options with which to configure element
|
|
* - Zend_Config: Zend_Config with options for configuring element
|
|
*
|
|
* @param string|array|Zend_Config $spec
|
|
* @return void
|
|
*/
|
|
public function __construct($spec, $options = null)
|
|
{
|
|
parent::__construct($spec, $options);
|
|
$this->setAllowEmpty(true)
|
|
->setRequired(true)
|
|
->setAutoInsertNotEmptyValidator(false)
|
|
->addValidator($this->getCaptcha(), true);
|
|
}
|
|
|
|
/**
|
|
* Return all attributes
|
|
*
|
|
* @return array
|
|
*/
|
|
public function getAttribs()
|
|
{
|
|
$attribs = get_object_vars($this);
|
|
unset($attribs['helper']);
|
|
foreach ($attribs as $key => $value) {
|
|
if ('_' == substr($key, 0, 1)) {
|
|
unset($attribs[$key]);
|
|
}
|
|
}
|
|
|
|
return $attribs;
|
|
}
|
|
|
|
/**
|
|
* Set options
|
|
*
|
|
* Overrides to allow passing captcha options
|
|
*
|
|
* @param array $options
|
|
* @return Zend_Form_Element_Captcha
|
|
*/
|
|
public function setOptions(array $options)
|
|
{
|
|
if (array_key_exists('captcha', $options)) {
|
|
if (array_key_exists('captchaOptions', $options)) {
|
|
$this->setCaptcha($options['captcha'], $options['captchaOptions']);
|
|
unset($options['captchaOptions']);
|
|
} else {
|
|
$this->setCaptcha($options['captcha']);
|
|
}
|
|
unset($options['captcha']);
|
|
}
|
|
return parent::setOptions($options);
|
|
}
|
|
|
|
/**
|
|
* Render form element
|
|
*
|
|
* @param Zend_View_Interface $view
|
|
* @return string
|
|
*/
|
|
public function render(Zend_View_Interface $view = null)
|
|
{
|
|
$captcha = $this->getCaptcha();
|
|
$captcha->setName($this->getFullyQualifiedName());
|
|
|
|
$decorators = $this->getDecorators();
|
|
|
|
$decorator = $captcha->getDecorator();
|
|
if (!empty($decorator)) {
|
|
array_unshift($decorators, $decorator);
|
|
}
|
|
|
|
$decorator = array('Captcha', array('captcha' => $captcha));
|
|
array_unshift($decorators, $decorator);
|
|
|
|
$this->setDecorators($decorators);
|
|
|
|
$this->setValue($this->getCaptcha()->generate());
|
|
|
|
return parent::render($view);
|
|
}
|
|
|
|
/**
|
|
* Retrieve plugin loader for validator or filter chain
|
|
*
|
|
* Support for plugin loader for Captcha adapters
|
|
*
|
|
* @param string $type
|
|
* @return Zend_Loader_PluginLoader
|
|
* @throws Zend_Loader_Exception on invalid type.
|
|
*/
|
|
public function getPluginLoader($type)
|
|
{
|
|
$type = strtoupper($type);
|
|
if ($type == self::CAPTCHA) {
|
|
if (!isset($this->_loaders[$type])) {
|
|
require_once 'Zend/Loader/PluginLoader.php';
|
|
$this->_loaders[$type] = new Zend_Loader_PluginLoader(
|
|
array('Zend_Captcha' => 'Zend/Captcha/')
|
|
);
|
|
}
|
|
return $this->_loaders[$type];
|
|
} else {
|
|
return parent::getPluginLoader($type);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add prefix path for plugin loader for captcha adapters
|
|
*
|
|
* This method handles the captcha type, the rest is handled by
|
|
* the parent
|
|
* @param string $prefix
|
|
* @param string $path
|
|
* @param string $type
|
|
* @return Zend_Form_Element
|
|
* @see Zend_Form_Element::addPrefixPath
|
|
*/
|
|
public function addPrefixPath($prefix, $path, $type = null)
|
|
{
|
|
$type = strtoupper($type);
|
|
switch ($type) {
|
|
case null:
|
|
$loader = $this->getPluginLoader(self::CAPTCHA);
|
|
$cPrefix = rtrim($prefix, '_') . '_Captcha';
|
|
$cPath = rtrim($path, '/\\') . '/Captcha';
|
|
$loader->addPrefixPath($cPrefix, $cPath);
|
|
return parent::addPrefixPath($prefix, $path);
|
|
case self::CAPTCHA:
|
|
$loader = $this->getPluginLoader($type);
|
|
$loader->addPrefixPath($prefix, $path);
|
|
return $this;
|
|
default:
|
|
return parent::addPrefixPath($prefix, $path, $type);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Load default decorators
|
|
*
|
|
* @return void
|
|
*/
|
|
public function loadDefaultDecorators()
|
|
{
|
|
if ($this->loadDefaultDecoratorsIsDisabled()) {
|
|
return;
|
|
}
|
|
|
|
$decorators = $this->getDecorators();
|
|
if (empty($decorators)) {
|
|
$this->addDecorator('Errors')
|
|
->addDecorator('Description', array('tag' => 'p', 'class' => 'description'))
|
|
->addDecorator('HtmlTag', array('tag' => 'dd'))
|
|
->addDecorator('Label', array('tag' => 'dt'));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Is the captcha valid?
|
|
*
|
|
* @param mixed $value
|
|
* @param mixed $context
|
|
* @return boolean
|
|
*/
|
|
public function isValid($value, $context = null)
|
|
{
|
|
$this->getCaptcha()->setName($this->getName());
|
|
$belongsTo = $this->getBelongsTo();
|
|
if (empty($belongsTo) || !is_array($context)) {
|
|
return parent::isValid($value, $context);
|
|
}
|
|
|
|
$name = $this->getFullyQualifiedName();
|
|
$root = substr($name, 0, strpos($name, '['));
|
|
$segments = substr($name, strpos($name, '['));
|
|
$segments = ltrim($segments, '[');
|
|
$segments = rtrim($segments, ']');
|
|
$segments = explode('][', $segments);
|
|
array_unshift($segments, $root);
|
|
array_pop($segments);
|
|
$newContext = $context;
|
|
foreach ($segments as $segment) {
|
|
if (array_key_exists($segment, $newContext)) {
|
|
$newContext = $newContext[$segment];
|
|
}
|
|
}
|
|
|
|
return parent::isValid($value, $newContext);
|
|
}
|
|
}
|