108 lines
2.7 KiB
PHP
Executable File
108 lines
2.7 KiB
PHP
Executable File
<?php
|
|
|
|
/*
|
|
* This file is part of Twig.
|
|
*
|
|
* (c) 2009 Fabien Potencier
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
class Twig_Extension_Escaper extends Twig_Extension
|
|
{
|
|
protected $defaultStrategy;
|
|
|
|
public function __construct($defaultStrategy = 'html')
|
|
{
|
|
$this->setDefaultStrategy($defaultStrategy);
|
|
}
|
|
|
|
/**
|
|
* Returns the token parser instances to add to the existing list.
|
|
*
|
|
* @return array An array of Twig_TokenParserInterface or Twig_TokenParserBrokerInterface instances
|
|
*/
|
|
public function getTokenParsers()
|
|
{
|
|
return array(new Twig_TokenParser_AutoEscape());
|
|
}
|
|
|
|
/**
|
|
* Returns the node visitor instances to add to the existing list.
|
|
*
|
|
* @return array An array of Twig_NodeVisitorInterface instances
|
|
*/
|
|
public function getNodeVisitors()
|
|
{
|
|
return array(new Twig_NodeVisitor_Escaper());
|
|
}
|
|
|
|
/**
|
|
* Returns a list of filters to add to the existing list.
|
|
*
|
|
* @return array An array of filters
|
|
*/
|
|
public function getFilters()
|
|
{
|
|
return array(
|
|
new Twig_SimpleFilter('raw', 'twig_raw_filter', array('is_safe' => array('all'))),
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Sets the default strategy to use when not defined by the user.
|
|
*
|
|
* The strategy can be a valid PHP callback that takes the template
|
|
* "filename" as an argument and returns the strategy to use.
|
|
*
|
|
* @param mixed $defaultStrategy An escaping strategy
|
|
*/
|
|
public function setDefaultStrategy($defaultStrategy)
|
|
{
|
|
// for BC
|
|
if (true === $defaultStrategy) {
|
|
$defaultStrategy = 'html';
|
|
}
|
|
|
|
$this->defaultStrategy = $defaultStrategy;
|
|
}
|
|
|
|
/**
|
|
* Gets the default strategy to use when not defined by the user.
|
|
*
|
|
* @param string $filename The template "filename"
|
|
*
|
|
* @return string The default strategy to use for the template
|
|
*/
|
|
public function getDefaultStrategy($filename)
|
|
{
|
|
// disable string callables to avoid calling a function named html or js,
|
|
// or any other upcoming escaping strategy
|
|
if (!is_string($this->defaultStrategy) && is_callable($this->defaultStrategy)) {
|
|
return call_user_func($this->defaultStrategy, $filename);
|
|
}
|
|
|
|
return $this->defaultStrategy;
|
|
}
|
|
|
|
/**
|
|
* Returns the name of the extension.
|
|
*
|
|
* @return string The extension name
|
|
*/
|
|
public function getName()
|
|
{
|
|
return 'escaper';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Marks a variable as being safe.
|
|
*
|
|
* @param string $string A PHP variable
|
|
*/
|
|
function twig_raw_filter($string)
|
|
{
|
|
return $string;
|
|
}
|