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Disallow the use of the callback filter for the url_param and form_param Twig functions

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Daniel Rudolf 2018-02-24 14:02:59 +01:00
parent 5f7b455975
commit 80263a91dc
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GPG key ID: A061F02CD8DE4538
1 changed files with 58 additions and 2 deletions
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60
lib/PicoTwigExtension.php
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@ -89,8 +89,8 @@ class PicoTwigExtension extends Twig_Extension
public function getFunctions()
{
return array(
'url_param' => new Twig_SimpleFunction('url_param', array($this->pico, 'getUrlParameter')),
'form_param' => new Twig_SimpleFunction('form_param', array($this->pico, 'getFormParameter'))
'url_param' => new Twig_SimpleFunction('url_param', array($this, 'urlParamFunction')),
'form_param' => new Twig_SimpleFunction('form_param', array($this, 'formParamFunction'))
);
}
@ -281,4 +281,60 @@ class PicoTwigExtension extends Twig_Extension
return $var;
}
/**
* Filters a URL GET parameter with a specified filter
*
* The Twig function disallows the use of the `callback` filter.
*
* @see Pico::getUrlParameter()
*
* @param string $name name of the URL GET parameter
* to filter
* @param int|string $filter the filter to apply
* @param mixed|array $options either a associative options
* array to be used by the filter or a scalar default value
* @param int|string|int[]|string[] $flags flags and flag strings to be
* used by the filter
*
* @return mixed either the filtered data, FALSE if the filter fails, or
* NULL if the URL GET parameter doesn't exist and no default value is
* given
*/
public function urlParamFunction($name, $filter = '', $options = null, $flags = null)
{
if (($filter === 'callback') || ($filter === FILTER_CALLBACK)) {
return false;
}
return $this->pico->getUrlParameter($name, $filter, $options, $flags);
}
/**
* Filters a HTTP POST parameter with a specified filter
*
* The Twig function disallows the use of the `callback` filter.
*
* @see Pico::getFormParameter()
*
* @param string $name name of the HTTP POST
* parameter to filter
* @param int|string $filter the filter to apply
* @param mixed|array $options either a associative options
* array to be used by the filter or a scalar default value
* @param int|string|int[]|string[] $flags flags and flag strings to be
* used by the filter
*
* @return mixed either the filtered data, FALSE if the filter fails, or
* NULL if the HTTP POST parameter doesn't exist and no default value
* is given
*/
public function formParamFunction($name, $filter = '', $options = null, $flags = null)
{
if (($filter === 'callback') || ($filter === FILTER_CALLBACK)) {
return false;
}
return $this->pico->getFormParameter($name, $filter, $options, $flags);
}
}