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<?php
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/*
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* This file is part of Twig.
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*
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* (c) 2015 Fabien Potencier
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class Twig_Node_CheckSecurity extends Twig_Node
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{
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protected $usedFilters;
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protected $usedTags;
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protected $usedFunctions;
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public function __construct(array $usedFilters, array $usedTags, array $usedFunctions)
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{
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$this->usedFilters = $usedFilters;
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$this->usedTags = $usedTags;
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$this->usedFunctions = $usedFunctions;
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parent::__construct();
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}
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public function compile(Twig_Compiler $compiler)
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{
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$tags = $filters = $functions = array();
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foreach (array('tags', 'filters', 'functions') as $type) {
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foreach ($this->{'used'.ucfirst($type)} as $name => $node) {
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if ($node instanceof Twig_Node) {
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${$type}[$name] = $node->getLine();
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} else {
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${$type}[$node] = null;
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}
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}
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}
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$compiler
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->write('$tags = ')->repr(array_filter($tags))->raw(";\n")
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->write('$filters = ')->repr(array_filter($filters))->raw(";\n")
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->write('$functions = ')->repr(array_filter($functions))->raw(";\n\n")
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->write("try {\n")
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->indent()
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->write("\$this->env->getExtension('sandbox')->checkSecurity(\n")
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->indent()
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->write(!$tags ? "array(),\n" : "array('".implode("', '", array_keys($tags))."'),\n")
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->write(!$filters ? "array(),\n" : "array('".implode("', '", array_keys($filters))."'),\n")
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->write(!$functions ? "array()\n" : "array('".implode("', '", array_keys($functions))."')\n")
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->outdent()
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->write(");\n")
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->outdent()
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->write("} catch (Twig_Sandbox_SecurityError \$e) {\n")
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->indent()
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->write("\$e->setTemplateFile(\$this->getTemplateName());\n\n")
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->write("if (\$e instanceof Twig_Sandbox_SecurityNotAllowedTagError && isset(\$tags[\$e->getTagName()])) {\n")
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->indent()
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->write("\$e->setTemplateLine(\$tags[\$e->getTagName()]);\n")
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->outdent()
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->write("} elseif (\$e instanceof Twig_Sandbox_SecurityNotAllowedFilterError && isset(\$filters[\$e->getFilterName()])) {\n")
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->indent()
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->write("\$e->setTemplateLine(\$filters[\$e->getFilterName()]);\n")
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->outdent()
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->write("} elseif (\$e instanceof Twig_Sandbox_SecurityNotAllowedFunctionError && isset(\$functions[\$e->getFunctionName()])) {\n")
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->indent()
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->write("\$e->setTemplateLine(\$functions[\$e->getFunctionName()]);\n")
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->outdent()
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->write("}\n\n")
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->write("throw \$e;\n")
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->outdent()
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->write("}\n\n")
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;
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}
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}
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