Viewing file:  CheckSecurityNode.php (3.04 KB) -rw-r--r--
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<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Twig\Node;
use Twig\Compiler;
/**
* @author Fabien Potencier <fabien@symfony.com>
*/
class CheckSecurityNode extends Node
{
private $usedFilters;
private $usedTags;
private $usedFunctions;
public function __construct(array $usedFilters, array $usedTags, array $usedFunctions)
{
$this->usedFilters = $usedFilters;
$this->usedTags = $usedTags;
$this->usedFunctions = $usedFunctions;
parent::__construct();
}
public function compile(Compiler $compiler): void
{
$tags = $filters = $functions = [];
foreach (['tags', 'filters', 'functions'] as $type) {
foreach ($this->{'used'.ucfirst($type)} as $name => $node) {
if ($node instanceof Node) {
${$type}[$name] = $node->getTemplateLine();
} else {
${$type}[$node] = null;
}
}
}
$compiler
->write("\n")
->write("public function checkSecurity()\n")
->write("{\n")
->indent()
->write('static $tags = ')->repr(array_filter($tags))->raw(";\n")
->write('static $filters = ')->repr(array_filter($filters))->raw(";\n")
->write('static $functions = ')->repr(array_filter($functions))->raw(";\n\n")
->write("try {\n")
->indent()
->write("\$this->sandbox->checkSecurity(\n")
->indent()
->write(!$tags ? "[],\n" : "['".implode("', '", array_keys($tags))."'],\n")
->write(!$filters ? "[],\n" : "['".implode("', '", array_keys($filters))."'],\n")
->write(!$functions ? "[]\n" : "['".implode("', '", array_keys($functions))."']\n")
->outdent()
->write(");\n")
->outdent()
->write("} catch (SecurityError \$e) {\n")
->indent()
->write("\$e->setSourceContext(\$this->source);\n\n")
->write("if (\$e instanceof SecurityNotAllowedTagError && isset(\$tags[\$e->getTagName()])) {\n")
->indent()
->write("\$e->setTemplateLine(\$tags[\$e->getTagName()]);\n")
->outdent()
->write("} elseif (\$e instanceof SecurityNotAllowedFilterError && isset(\$filters[\$e->getFilterName()])) {\n")
->indent()
->write("\$e->setTemplateLine(\$filters[\$e->getFilterName()]);\n")
->outdent()
->write("} elseif (\$e instanceof SecurityNotAllowedFunctionError && isset(\$functions[\$e->getFunctionName()])) {\n")
->indent()
->write("\$e->setTemplateLine(\$functions[\$e->getFunctionName()]);\n")
->outdent()
->write("}\n\n")
->write("throw \$e;\n")
->outdent()
->write("}\n\n")
->outdent()
->write("}\n")
;
}
}
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