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Add configuration for Twig_Extension_Sandbox #40

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Add configuration for Twig_Extension_Sandbox #40

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20 changes: 18 additions & 2 deletions ETwigViewRenderer.php
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,10 @@ class ETwigViewRenderer extends CApplicationComponent implements IViewRenderer
* Example: array('Twig_Extension_Sandbox', 'Twig_Extension_Text')
*/
public $extensions = array();
/**
* @var array Twig_Extension_Sandbox configuration
*/
public $sandboxConfig = array();
/**
* @var array Twig lexer options
* @see http://twig.sensiolabs.org/doc/recipes.html#customizing-the-syntax
Expand Down Expand Up @@ -140,7 +144,7 @@ public function renderFile($context, $sourceFile, $data, $return)
{
// current controller properties will be accessible as {{ this.property }}
$data['this'] = $context;

$sourceFile = realpath($sourceFile); // to prevent common problems with paths associated with symlinks

foreach($this->_paths as $path) {
Expand Down Expand Up @@ -197,7 +201,19 @@ public function addFilters($filters)
public function addExtensions($extensions)
{
foreach ($extensions as $extName) {
$this->_twig->addExtension(new $extName());
if ($extName=="Twig_Extension_Sandbox"){
// Read the sandboxConfig
$tags = isset($this->sandboxConfig['tags'])?$this->sandboxConfig['tags']:array();
$filters = isset($this->sandboxConfig['filters'])?$this->sandboxConfig['filters']:array();
$methods = isset($this->sandboxConfig['methods'])?$this->sandboxConfig['methods']:array();
$properties = isset($this->sandboxConfig['properties'])?$this->sandboxConfig['properties']:array();
$functions = isset($this->sandboxConfig['functions'])?$this->sandboxConfig['functions']:array();
$policy = new Twig_Sandbox_SecurityPolicy($tags, $filters, $methods, $properties, $functions);
$sandbox = new Twig_Extension_Sandbox($policy, true);
$this->_twig->addExtension($sandbox);
}else{
$this->_twig->addExtension(new $extName());
}
}
}

Expand Down